CROSS REFERENCE TO RELATED APPLICATIONS
[0001] The present application is based on the Chinese Patent Application No.
201822071631.9 filed on December 10, 2018, and claims its priority. The contents of the application are incorporated herein
by reference in their entireties.
TECHNICAL FIELD
[0002] The present application relates to the field of container technology, and more particularly
to a safety-lock structure for a packaging box.
BACKGROUND
[0003] The existing containers generally comprise a container body and a cover body covering
the container body. After opening the cover body, the liquid or some scattered particles
filled in the container can be poured out; when the container is filled with small
or corrosive particles, the container can be easily opened by children, hence causes
ingestion by mistake.
SUMMARY OF THE APPLICATION
[0004] An object of the present application is to provide a safety-lock structure for a
packaging box by solving the disadvantages of the prior art.
[0005] A technical solution of the present application is:
A safety-lock structure for packaging box includes a cover body and a container body
with a neck finish, the neck finish has an open mouth, an outer wall of the neck finish
is provided with external threads, an inner wall of the cover body is provided with
internal threads in thread connection with the external threads; a side wall of the
cover body is provided with at least two pressing portions, an inner wall of each
pressing portions is provided with a flexible snap, an upper end surface of the container
body is provided with a blocking portion that corresponds to each flexible snap. The
flexible snaps and the blocking portions are engaged with each other after the cover
body and the container body are screwed tightly to each other.
[0006] In a preferred solution, the surface of the cover body is recessed inward and provided
with recessed portions, and the inner side wall of the recessed portion forms the
pressing portion, and the flexible snap is disposed on the inner side wall of the
recessed portion and is close to the center of the cover body.
[0007] In a preferred solution, a slit groove is provided between the bottom part of the
recessed portion and the pressing portion.
[0008] In a preferred solution, each flexible snap includes a base portion, and a flexible
block disposed on a lower surface of the base portion and adjacent to a side of the
base portion; a notch snap groove is formed between the flexible block and the other
side of the base portion, the blocking portion and the notch snap groove are engaged
with each other after the cover body and the container body are screwed tightly to
each other.
[0009] In a preferred solution, each flexible block is provided with a guiding piece which
is in the same direction as the rotating direction of the internal threads. When the
cover body and the container body are being screwed tightly together, the blocking
portion slides along the guiding piece and snaps into the notch snap groove.
[0010] In a preferred solution, the number of the flexible snaps is 2, and the 2 flexible
snaps are disposed opposite to each other on the inner wall of the cover body.
[0011] In combination with the above technical solutions, the present application has the
following beneficial effects: when the cover body needs to be opened, it requires
to hold the container body by one hand, and press the pressing portions by the other
hand, so that the flexible snaps and the blocking portions are separated from each
other, then rotate the cover body at the same time to open the cover body. Due to
the limitations of the size of children's hands, children are not able to press the
two pressing portions with one hand, thus they cannot open the cover body, therefore,
it can prevent children from eating the contents of the container body; during the
process of tightening the cover body and the container body, the blocking portions
slide into the notch snap grooves and are engaged with the notch snap grooves, so
that the cover body stably covers the container body.
[0012] The above description is only an overview of the technical solutions of the present
application, and the technical means of the present application can be more clearly
understood, and can be implemented in accordance with the contents of the specification,
and the above and other objects, features and advantages of the present application
can be more clearly understood by the detailed preferred embodiments described hereinafter,
with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013]
FIG. 1 is a perspective view of the present application when the cover body and the
container body are opened;
FIG. 2 is a perspective view of the container body of the present application;
FIG. 3 is a first perspective view of the cover body of the present application;
FIG. 4 is a second perspective view of the cover body of the present application;
FIG. 5 is a partial enlarged view of part A in FIG. 4;
FIG. 6 is a cross-sectional view of the present application;
FIG. 7 is a partial enlarged view of part A in FIG. 6.
DETAILED DESCRIPTION OF THE SPECIFIC EMBODIMENTS
[0014] To clarify the idea and purpose of the present application, the present application
will be further described with reference to the accompanying drawings and specific
embodiments.
[0015] As shown in FIG. 1 to FIG. 7, a safety-lock structure for a packaging box includes
a cover body 10 and a container body 20 with a neck finish 21, the neck finish 21
has an opening 22 , the outer wall of the neck finish 21 is provided with external
threads; the inner wall of the cover body 10 is provided with internal threads which
are in screw connection with the external threads, and the side wall is provided with
at least two pressing portions 13; the inner wall of each pressing portion 13 is provided
with a flexible snap 11. The upper end surface of the container body 20 is provided
with a blocking portion 23 that corresponds to each flexible snap 11. When the cover
body 10 and the container body 20 are screwed tightly to each other, the flexible
snaps 11 are engaged with the blocking portions 23.
[0016] As shown in FIG. 1 to FIG. 7 , when the cover body 10 needs to be opened, it requires
to press the pressing portions 13 , so that the flexible snaps 11 and the blocking
portions 23 are separated from each other, and rotate the cover body 10 at the same
time to open the cover body 10. Due to the limitations of children's strength and
the size of their hands, children cannot open the cover body 10, hence children can
be prevented from ingesting the food in the container body 20; during the tightening
of the cover body 10 and the container body 20, the flexible snaps 11 and the blocking
portions 23 are engaged with each other, so that the cover body 10 and the container
body 20 are stably closed.
[0017] As shown in FIG. 1 to FIG. 7, the surface of the cover body 10 is recessed inward
and provided with recessed portions 12, and the inner side wall of the recessed portion
12 forms the pressing portion 13, and the pressing portion 13 is adjacent to the center
of the cover body 10, the recessed portions 12 are adjacent to the lower side of the
cover body 10. The cover body 10, the pressing portions 13 and the flexible snaps
11 are integrally formed, and the blocking portions 23 are integrally formed with
the container body 20.
[0018] As shown in FIG. 1 to FIG. 7, a slit groove 14 is provided between the bottom portion
15 of the recessed portion 12 and the pressing portion 13, so that the pressing portion
13 has certain elasticity, facilitating the flexible snap 11 and the blocking portion
23 to be engaged with or separated from each other.
[0019] As shown in FIG. 1 to FIG. 7, each flexible snap 11 includes a base portion 111,
and a flexible block 112 disposed on a lower surface of the base portion 111 and adjacent
to one side of the base portion 111. The base portion 111 is fixedly connected to
the inner wall of the pressing portion 13; a notch snap groove 113 is formed between
the flexible block 112 and the other side of the base portion 111. The notch snap
groove 113 is in an L shape. When the cover body 10 and the container body 20 are
screwed tightly to each other, the blocking portions 23 slide into the notch snap
grooves 113, hence the blocking portions 23 are engaged with the notch snap grooves
113. Preferably, the flexible blocks 112 are provided with guiding pieces 114 which
are in the same direction as the rotating direction of the internal threads. The guiding
pieces 114 have an arc-shaped structure. When the cover body 10 and the container
body 20 are being screwed tightly together, the blocking portions 23 slide along the
guiding pieces 114 and snap into the notch snap grooves 113.
[0020] As shown in FIG. 1 to FIG. 7, the number of the pressing portions 13 is two, and
the two pressing portions 13 are disposed opposite to each other on the side wall
of the cover body 10; the number of the flexible snaps 11 is two, and the two flexible
snaps 11 are disposed opposite to each other on the inner wall of the cover body 10.
The number of the blocking portions 23 is two, and the two blocking portions 23 are
disposed opposite to each other on the inner wall of the cover body 10. When the cover
body 10 needs to be opened, the pressing portions 13 are simultaneously pressed by
the thumb and the middle finger, so that the blocking portions 23 are separated from
the notch snap grooves 113, and at the same time the cover body 10 is rotated, so
that the cover body 10 can be opened. Due to the limitations of children's strength
and the size of their hands, children cannot open the cover body 10, hence can be
prevented from ingesting the food in the container body 20; during the tightening
of the cover body 10 and the container body 20, the flexible snaps 11 and the blocking
portions 23 are engaged with each other, so that the cover body 10 and the container
body 20 are stably closed.
[0021] The above is a specific embodiment of the present application. It should be noted
that those skilled in the art can also make improvements and refinements without departing
from the principle of the present application. These improvements and refinements
are also regarded as the scope of protection for the present application.
1. A safety-lock structure for a packaging box comprising:
a cover body; and
a container body having a neck finish, the neck finish having an opening, an outer
wall of the neck finish being provided with external threads, an inner wall of the
cover body being provided with internal threads which are in thread connection with
the threads, a side wall of the cover body being provided with at least two pressing
portions, an inner wall of each pressing portion being provided with a flexible snap,
an upper end surface of the container body being provided with a blocking portion
that corresponds to each flexible snap, after the cover body and the container body
are screwed tight to each other, the flexible snaps and the blocking portions are
engaged with each other.
2. The safety-lock structure for a packaging box of claim 1, wherein a surface of the
cover body is recessed inward and provided with recessed portions, inner side walls
of the recessed portions forming the pressing portions, the flexible snaps being disposed
on the inner side walls of the recessed portions and adjacent to a center of the cover
body.
3. The safety-lock structure for a packaging box of claim 1, wherein a slit groove is
provided between a bottom portion of the recessed portion and the pressing portion.
4. The safety-lock structure for a packaging box of any of claims 1 to 3, wherein each
flexible snap comprises a base portion, a flexible block disposed on a lower surface
of the base portion and adjacent to a one side of the base portion, and a notch snap
groove being formed between the flexible block and another side of the base portion;
after the cover body and the container body are screwed tight to each other, the blocking
portions and the notch snap grooves are engaged with each other.
5. The safety-lock structure for a packaging box of claim 4, wherein each flexible block
is provided with a guiding piece which is in a same direction as a rotating direction
of the internal threads; when the cover body and the container body are being screwed
tightly together, the blocking portions slide along the guiding pieces and snap into
the notch snap grooves.
6. The safety-lock structure for a packaging box of claim 1, wherein the number of the
flexible snaps is two, and the two flexible snaps are disposed opposite to each other
on the inner wall of the cover body.