FIELD OF THE INVENTION
[0001] The invention provides a treadmill accessory and in particular relates to a shock
absorption mechanism for a treadmill.
BACKGROUND OF THE INVENTION
[0002] A shock absorption mechanism is generally arranged between a running platform and
a base of an existing treadmill so as to reduce noise and protect the knee joint of
a user. An existing treadmill is generally provided with rubber columns below four
corners of a rectangular running platform, and the running platform is fixed on a
base by the rubber columns, while a middle part of the running platform is pressed
against the base by several springs, thus providing a damping and buffering action.
However, for the existing treadmills that provide shock absorption by springs, the
running platforms of the treadmills compress the springs to cause squeak noise when
in use, and the springs gradually lose elasticity after long-term use, thus the shock
absorption effect is also gradually weakened.
SUMMARY OF THE INVENTION
[0003] In view of the defects of a shock absorption mechanism for an existing treadmill,
a technical problem to be solved by the invention is to provide a shock absorption
mechanism for a treadmill which has low noise and a long-term stable shock absorption
effect.
[0004] In order to achieve the above object, according to one aspect of the invention, the
invention is achieved by the following technical measures: the shock absorption mechanism
comprises a running platform and a base, wherein the running platform is fixed on
the base by rubber columns below its four corners, one or several opposing magnets
are respectively fixed below middle parts of two sides of the running platform and
above middle parts of two sides of the base, and the magnets on the running platform
and the magnets on the base have the same magnetic pole to form a repulsive force.
[0005] The shock absorption mechanism for a treadmill achieves shock absorption by the repulsive
force formed by the same magnetic pole of the magnets, thus avoiding noise and providing
a stable shock absorption effect.
[0006] Further, preferably, the shock absorption mechanism for a treadmill further comprises
a magnet frame, one side of the magnet frame is fixed to the running platform or the
base, and the magnet frame is used for fixing the magnets. The above design facilitates
fixing the magnets.
[0007] Further, preferably, the magnet frame is hollow inside, and an unfixed side of the
magnet frame has an opening which allows part of accommodating cavities to be formed
as through cavities. The above design is to facilitate the formation of a repulsive
force between the magnets.
[0008] Further, preferably, the magnet frame is internally provided with a partition plate
so that not fewer than two accommodating cavities are formed in the magnet frame,
and each of the accommodating cavities is provided with a magnet. The above design
is reasonable and compact in structure.
[0009] Further, preferably, a reinforcing rubber column is also fixed on the base, the reinforcing
rubber column is hemispherical, and there is a certain gap between the reinforcing
rubber column and the running platform to prevent the running platform from being
pressed too low and provide support.
[0010] Compared with the prior art, the invention has the following advantages: the shock
absorption mechanism using strong magnets for buffering has no noise, a long service
life and good comfort when in use.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The drawings constituting a part of the invention are used to provide a further understanding
of the invention, and illustrative embodiments and their illustrations of the invention
are used for explaining the invention, but do not unduly limit the invention. In the
Figures:
Fig. 1 is a schematic structural view of the invention; and
Fig. 2 is a schematic structural view of the magnet frame of the invention.
[0012] Description of reference numerals: 101. running platform; 102. base; 103. rubber
column; 104. magnet frame; 105. opening; 106. partition plate; 107. magnet; 108. reinforcing
rubber column.
DETAILED DESCRIPTION OF THE INVENTION
[0013] The invention will be described hereinafter in detail with reference to the drawings
and in conjunction with examples. It should be noted that the examples in the present
application and the features in the examples may be combined with each other if there
is no confliction.
[0014] In the description of the invention, it should be understood that the directional
or positional relationships indicated by the terms such as "center", "upper", "lower",
"left", "right", "vertical", "horizontal", "inner", "outer", "bottom" and "top" are
based on the directional or positional relationships shown in the drawings, which
are merely for the convenience of describing the invention and for simplified description,
and are not intended to indicate or imply that the devices or elements involved must
have specific orientations and must be constructed and operated in specific orientations,
and therefore cannot be construed as limiting the invention.
Embodiment 1
[0015] Referring to Fig. 1, a shock absorption mechanism for a treadmill provided by this
embodiment comprises a running platform 101, a base 102 and rubber columns 103, wherein
the rubber columns 103 are four rubber columns which are respectively disposed at
the bottom of four corners of the running platform 101 and used for being fixed to
the base 102.
[0016] Referring to Fig. 2, two magnet frames 104 are fixed at a middle part of each side
of the running platform 101, and two magnet frames 104 are fixed at a middle part
of each side of the base 102, thus forming four sets of magnet frames 104 which are
vertically opposite to one another in pairs; an opening at one side of the magnet
frame 104 is hollow inside to form an accommodating cavity therein, a partition plate
106 is fixed in the accommodating cavity to form two cavities in the accommodating
cavity, magnets 107 are respectively fixed in the two cavities, and the magnet frame
104 at the opening side is preferably movably fixed at the bottom of the running platform
101 or at the top of the base 102 by screws; an unfixed side of the magnet frame 104
has an opening 105 which allows part of accommodating cavities to be formed as through
cavities, so that the magnets 107 are not completely surrounded by the magnet frame
104; and the magnets 107 on the running platform 101 are opposite to the magnets 107
on the base 102, thus forming a repulsive force for shock absorption if the magnets
107 on the running platform 101 and the magnets 107 on the base 102 have the same
magnetic pole. Of course, it can be seen from Fig. 2 that a reinforcing rubber column
108 is also fixed on the base 102 between the two magnet frames 104 at the middle
part of each side of the base 102, the reinforcing rubber column 108 is hemispherical,
and the top of the reinforcing rubber column 108 is higher than the magnet frames
104, but there is a certain gap between its top and the running platform 101.
[0017] Since strong magnets with the same magnetic pole are used for buffering between the
middle part of the running platform and the base in the above design, the shock absorption
mechanism has the advantages of no noise, a long service life, good comfort and the
like when in use. Moreover, in the shock absorption mechanism for a treadmill, a hemispherical
reinforcing rubber column is fixed between the two magnet frames of the base, which
prevents the running platform from being pressed too low and provides support when
an overweight user is using the running platform, thus effectively protecting the
running platform.
[0018] Of course, the magnets 107 may be either strong magnets or electromagnets.
[0019] The above description only refers to a preferred embodiment of the invention and
is not intended to limit the invention. For those skilled in the art, various modifications
and changes can be made to the invention. Any modification, equivalent replacement
and improvement, etc. made within the spirit and principle of the invention shall
be included within the protection scope of the invention.
1. A shock absorption mechanism for a treadmill, comprising: a running platform and a
base, the running platform being fixed on the base by rubber columns below its four
corners, wherein one or several opposing magnets are respectively fixed below middle
parts of two sides of the running platform and above middle parts of two sides of
the base, and the magnets on the running platform and the magnets on the base have
the same magnetic pole to form a repulsive force.
2. The shock absorption mechanism for a treadmill according to claim 1, wherein the shock
absorption mechanism for a treadmill further comprises a magnet frame, one side of
the magnet frame is fixed to the running platform or the base, and the magnet frame
is used for fixing the magnets.
3. The shock absorption mechanism for a treadmill according to claim 2, wherein the magnet
frame is hollow inside, and an unfixed side of the magnet frame has an opening which
allows part of accommodating cavities to be formed as through cavities.
4. The shock absorption mechanism for a treadmill according to claim 2 or 3, wherein
the magnet frame is internally provided with a partition plate so that not fewer than
two accommodating cavities are formed in the magnet frame, and each of the accommodating
cavities is provided with a magnet.
5. The shock absorption mechanism for a treadmill according to claim 1, wherein a reinforcing
rubber column is also fixed on the base, the reinforcing rubber column is hemispherical,
and there is a certain gap between the reinforcing rubber column and the running platform
to prevent the running platform from being pressed too low and provide support.