CN210674126U - Chest expander with safeguard function - Google Patents
Chest expander with safeguard function Download PDFInfo
- Publication number
- CN210674126U CN210674126U CN201921361359.6U CN201921361359U CN210674126U CN 210674126 U CN210674126 U CN 210674126U CN 201921361359 U CN201921361359 U CN 201921361359U CN 210674126 U CN210674126 U CN 210674126U
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- handle
- chest expander
- gear
- fixedly connected
- side wall
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Abstract
The utility model discloses a chest expander with safeguard function, including first handle, first handle has the second handle through a plurality of spring elastic connection, the lateral wall fixedly connected with fixed block of first handle, set up mechanism's groove in the fixed block, it is connected with the gear to rotate on the mechanism inslot wall, the lateral wall fixedly connected with and the gear complex rack of second handle, the one end that the second handle was kept away from to the rack extends to the mechanism inslot, mechanism installs restriction gear revolve's damping device in the inslot. The utility model discloses a gear revolve then makes the threaded rod at threaded hole internal rotation, because the screw thread has certain auto-lock ability, frictional resistance is great, consequently can delay the reset rate of chest expander, even if take off the hand when chest expander resets like this, because the handle rate of motion can not cause to hit the impact damage to the human body yet very slowly.
Description
Technical Field
The utility model relates to a body-building apparatus technical field especially relates to a chest expander with safeguard function.
Background
The chest expander is also called as a chest expander, and is a body-building training instrument, a spring is arranged on the chest expander, and the chest expander can be pulled open by two hands to strengthen the strength of the muscles of the chest and the arms.
In the use process of the chest expander, the chest expander needs to be firstly pulled open by two hands, the two hands are released after the chest expander is pulled to the extreme position, and the chest expander is reset under the action of the spring; when the chest expander is reset, if the hand of a person slips off from the grip carelessly, the grip is pulled to retract by the huge pulling force of the spring, and the grip is easy to beat and damage the body of the person because the hand of the person loses control over the grip, so that the chest expander with the protection function is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a chest expander with a protection function.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a chest expander with safeguard function, includes first handle, first handle has the second handle through a plurality of spring elastic connection, the lateral wall fixedly connected with fixed block of first handle, set up in the fixed block and have the mechanism groove, it is connected with the gear to rotate on the mechanism inslot wall, the lateral wall fixedly connected with and the gear complex rack of second handle, the one end that the second handle was kept away from to the rack extends to the mechanism inslot, install restriction gear pivoted damping device in the mechanism groove.
Preferably, damping device includes the pivot of coaxial fixed connection at the gear lateral wall, the rectangular channel has been seted up to the lateral wall of pivot, sliding connection has the rectangular block in the rectangular channel, the lateral wall fixedly connected with threaded rod of rectangular block, the threaded hole has been seted up to the lateral wall of fixed block, threaded rod and threaded rod threaded connection.
Preferably, the side wall of the fixed block is provided with a through hole communicated with the inside of the mechanism groove, and one end of the rack, which is far away from the second handle, is connected in the through hole in a sliding manner.
Preferably, the through hole is close to the side wall of the second handle, and the rotating connection position of the gear and the inner wall of the mechanism groove is close to the through hole.
Preferably, one end of the spring is fixedly connected with the side wall of the first handle, and the other end of the spring is fixedly connected with the side wall of the second handle.
Preferably, rubber sleeves are glued at the hand-held positions of the first handle and the second handle, and anti-skid grains are carved on the rubber sleeves.
The utility model discloses following beneficial effect has:
1. in the resetting process of the chest expander, the rack is firstly meshed with the gear, when the spring pulls the two handles to move relatively, the gear can rotate, and then the threaded rod rotates in the threaded hole, and the thread has certain self-locking capacity and larger frictional resistance, so that the resetting speed of the chest expander can be delayed, and the beating injury to the human body can not be caused due to the low movement speed of the handles even if the chest expander is out of hand when the chest expander is reset;
2. in the process of pulling the chest expander, the frictional resistance between the threaded rod and the threaded hole does not influence the use of the chest expander, and meanwhile, the frictional resistance can also promote the exercise of the muscle strength of the arm cloth.
Drawings
Fig. 1 is a schematic structural view of a chest expander with a protection function provided by the present invention;
fig. 2 is an enlarged schematic view of a structure at a position a of the chest expander with a protection function provided by the utility model;
fig. 3 is a schematic sectional view of the chest expander with protection function at the position B-B of the present invention.
In the figure: 1 a first handle, 2 a second handle, 3 a spring, 4 fixed blocks, 5 racks, 6 mechanism grooves, 7 gears, 8 rotating shafts, 9 rectangular grooves, 10 rectangular blocks, 11 threaded rods and 12 threaded holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-3, a chest expander with protection function comprises a first handle 1, the first handle 1 is elastically connected with a second handle 2 through a plurality of springs 3, the holding positions of the first handle 1 and the second handle 2 are both glued with a rubber sleeve, anti-skid lines are engraved on the rubber sleeve, one end of the spring 3 is fixedly connected with the side wall of the first handle 1, the other end of the spring 3 is fixedly connected with the side wall of the second handle 2, the side wall of the first handle 1 is fixedly connected with a fixing block 4, a mechanism groove 6 is arranged in the fixing block 4, a gear 7 is rotatably connected on the inner wall of the mechanism groove 6, the side wall of the second handle 2 is fixedly connected with a rack 5 matched with the gear 7, the side wall of the fixing block 4 is provided with a through hole communicated with the inside of the mechanism groove 6, one end of the rack 5 far away from the second handle 2 is slidably connected in the through hole, the through hole is close to the side wall of the second handle 2, and the rotating, one end of the rack 5 far away from the second handle 2 extends into a mechanism groove 6, and a damping device for limiting the rotation of the gear 7 is arranged in the mechanism groove 6.
Damping device includes that coaxial fixed connection is at the pivot 8 of 7 lateral walls of gear, and rectangular channel 9 has been seted up to the lateral wall of pivot 8, and sliding connection has rectangular block 10 in rectangular channel 9, and rectangular block 10's lateral wall fixedly connected with threaded rod 11, fixed block 4's lateral wall offered threaded hole 12, threaded rod 11 and threaded hole 12 threaded connection.
The utility model discloses in, when chest expander resets, first handle 1 will with 2 relative movement of second handle, rack 5 and gear 7 meshing this moment, drive gear 7 and rotate then, thereby make coaxial fixed connection rotate at the pivot 8 of 7 lateral walls of gear, make rectangular block 10 in rectangular channel 9 rotate and drive threaded rod 11 at 12 internal rotations in the screw hole in the pivot 8, because the screw thread has certain auto-lock ability, frictional resistance is great, consequently, can delay the reset rate of chest expander, even take off the hand when chest expander resets like this, because first handle 1 and 2 velocities of motion of second handle are very slow can not cause the impact damage to the human body yet.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a chest expander with safeguard function, includes first handle (1), first handle (1) has second handle (2) through a plurality of spring (3) elastic connection, a serial communication port, lateral wall fixedly connected with fixed block (4) of first handle (1), set up in fixed block (4) and have mechanism groove (6), it is connected with gear (7) to rotate on mechanism groove (6) inner wall, the lateral wall fixedly connected with and gear (7) complex rack (5) of second handle (2), the one end that second handle (2) were kept away from in rack (5) extends to mechanism groove (6) in, install restriction gear (7) pivoted damping device in mechanism groove (6).
2. The chest expander with the protection function, according to claim 1, wherein the damping device comprises a rotating shaft (8) which is coaxially and fixedly connected to the side wall of the gear (7), a rectangular groove (9) is formed in the side wall of the rotating shaft (8), a rectangular block (10) is slidably connected in the rectangular groove (9), a threaded rod (11) is fixedly connected to the side wall of the rectangular block (10), a threaded hole (12) is formed in the side wall of the fixed block (4), and the threaded rod (11) is in threaded connection with the threaded hole (12).
3. The chest expander with the protection function as claimed in claim 1, wherein the side wall of the fixing block (4) is provided with a through hole communicated with the inside of the mechanism groove (6), and one end of the rack (5) far away from the second handle (2) is slidably connected in the through hole.
4. The chest expander with protection function as claimed in claim 3, wherein the through hole is close to the side wall of the second handle (2), and the rotary connection position of the gear (7) and the inner wall of the mechanism groove (6) is close to the through hole.
5. The chest expander with protection function as claimed in claim 1, wherein one end of the spring (3) is fixedly connected with the side wall of the first handle (1), and the other end of the spring (3) is fixedly connected with the side wall of the second handle (2).
6. The chest expander with protection function as claimed in claim 1, wherein the first handle (1) and the second handle (2) are glued with rubber sleeves, and the rubber sleeves are engraved with anti-skid lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921361359.6U CN210674126U (en) | 2019-08-21 | 2019-08-21 | Chest expander with safeguard function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921361359.6U CN210674126U (en) | 2019-08-21 | 2019-08-21 | Chest expander with safeguard function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210674126U true CN210674126U (en) | 2020-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921361359.6U Active CN210674126U (en) | 2019-08-21 | 2019-08-21 | Chest expander with safeguard function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210674126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114225303A (en) * | 2021-12-30 | 2022-03-25 | 哈尔滨职业技术学院 | Upper limb exercise fitness equipment and use method |
-
2019
- 2019-08-21 CN CN201921361359.6U patent/CN210674126U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114225303A (en) * | 2021-12-30 | 2022-03-25 | 哈尔滨职业技术学院 | Upper limb exercise fitness equipment and use method |
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