CN113457079B - Sit-up trainer - Google Patents
Sit-up trainer Download PDFInfo
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- CN113457079B CN113457079B CN202110815078.9A CN202110815078A CN113457079B CN 113457079 B CN113457079 B CN 113457079B CN 202110815078 A CN202110815078 A CN 202110815078A CN 113457079 B CN113457079 B CN 113457079B
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/02—Exercising apparatus specially adapted for particular parts of the body for the abdomen, the spinal column or the torso muscles related to shoulders (e.g. chest muscles)
- A63B23/0205—Abdomen
- A63B23/0211—Abdomen moving torso with immobilized lower limbs
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- Orthopedic Medicine & Surgery (AREA)
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- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
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Abstract
The invention relates to the technical field of sports equipment, and discloses a sit-up trainer which comprises a bottom plate, wherein a first supporting plate is arranged in the middle of the bottom plate, a fixed shaft is arranged at one end, far away from the bottom plate, of the first supporting plate, a seat plate is arranged on one side of the fixed shaft, and the sit-up trainer also comprises a leg limiting mechanism and a back auxiliary supporting mechanism; the leg limiting mechanism comprises a first rotating shaft which is rotationally connected with the first supporting plate, and one side of the first rotating shaft, which is far away from the seat plate, is rotationally connected with the rotating bracket; the back auxiliary supporting mechanism comprises a second rotating shaft which is rotatably connected with the end part of the seat plate, a back plate is arranged on one side, away from the seat plate, of the second rotating shaft, a second supporting plate is arranged on one side, close to the back plate, of the bottom plate, and the middle part of the second supporting plate is rotatably connected with a third rotating shaft. The sit-up trainer is suitable for a sit-up trainer, and the back auxiliary supporting mechanism is arranged, so that on one hand, the body of a user can be effectively protected, and on the other hand, the user can completely do the action.
Description
Technical Field
The invention relates to the technical field of sports equipment, in particular to a sit-up trainer.
Background
Sit-up, a way to exercise the body. Supine, closing the legs, lifting the hands, contracting the abdominal muscles, swinging the arms forward to quickly get a sitting posture, continuing the forward bending of the upper body, touching the foot surface with the hands, and lowering the head; then returning to the sitting position, and the operation is continued.
To the relatively poor personnel of muscle strength, under the prerequisite that does not have personnel to assist, hardly independent completion is complete sit up once, can strike training personnel's confidence on the one hand, and on the other hand is because the action is incomplete, and the effect that leads to whole exercise is relatively poor, consequently needs the auxiliary training device of design.
Disclosure of Invention
The invention provides a sit-up trainer, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a sit-up trainer comprises a bottom plate, wherein a first supporting plate is arranged in the middle of the bottom plate, a fixed shaft is arranged at one end, far away from the bottom plate, of the first supporting plate, a seat plate is arranged on one side of the fixed shaft, and the sit-up trainer also comprises a leg limiting mechanism and a back auxiliary supporting mechanism;
the leg limiting mechanism comprises a first rotating shaft rotationally connected with the first supporting plate, one side of the first rotating shaft, which is far away from the seat plate, is rotationally connected with a rotating support, the middle part of the rotating support is provided with a sliding groove, the sliding groove is connected with a sliding block in a sliding manner, the sliding block is fixedly connected with a foot blocking rod, a length limiting assembly is arranged between the sliding block and the sliding groove, and an angle limiting assembly is arranged between the first rotating shaft and the first supporting plate;
the back auxiliary supporting mechanism comprises a second rotating shaft which is rotatably connected with the end part of a seat plate, a back plate is arranged on one side, away from the seat plate, of the second rotating shaft, a second supporting plate is arranged on one side, close to the back plate, of a bottom plate, a third rotating shaft is rotatably connected with the middle part of the second supporting plate, the third rotating shaft is connected with the second rotating shaft through a transmission assembly, a push plate is arranged on one side, close to a leg limiting mechanism, of the third rotating shaft, a second fixing plate is arranged on one side, close to the bottom plate, of the first supporting plate, the end part of a lead screw is rotatably connected with the second fixing plate, a middle threaded connection sliding plate of the lead screw is arranged on one side, away from the bottom plate, of the sliding plate, a guide column is arranged on one side, close to the center of the sliding seat, a push rod matched with the push plate is arranged on one side, away from the center of the sliding seat, and a balancing weight is arranged on one side, away from the center of the sliding seat.
As a preferable technical solution of the present invention, the transmission assembly includes a first pulley coaxially connected to the second rotating shaft, the first pulley is connected to the second pulley through a belt, and the second pulley is coaxially connected to the third rotating shaft.
As a preferable technical solution of the present invention, a guide bar is disposed between the second fixing plate and the second supporting plate, and a middle portion of the guide bar is slidably connected to both sides of the sliding plate.
As a preferred technical scheme of the invention, the middle part of the back plate is provided with a yielding groove, and the middle part of the yielding groove is rotatably connected with the rotating roller.
As a preferable technical scheme of the invention, the surfaces of the fixed shaft and the rotating roller are both coated with flexible materials.
As a preferred technical solution of the present invention, the length limiting component includes a first limiting hole disposed at one side of the sliding groove, one end of the sliding block is provided with a first mounting bracket, the first mounting bracket is slidably connected to a first limiting rod matched with the first limiting hole, and a first spring is disposed between the first limiting rod and the first mounting bracket.
As a preferred technical solution of the present invention, the angle limiting assembly includes a sliding rod slidably connected to the first support plate, one end of the sliding rod away from the first support plate is fixedly connected to one end of the first fixing plate, the other end of the first fixing plate is provided with a second limiting rod, the end of the first rotating shaft is provided with a rotating disc, and the outer side of the rotating disc is provided with a second limiting hole matched with the second limiting rod.
As a preferred technical solution of the present invention, a second spring is disposed between the first fixing plate and the first supporting plate, and the second spring is sleeved outside the sliding rod.
The invention has the following advantages:
the back plate can provide effective supporting force during the process of doing sit-ups by arranging the back auxiliary supporting mechanism, and the size of the supporting force can be freely adjusted, so that a user with small muscle strength can easily do sit-ups, on one hand, the body of the user can be effectively protected, on the other hand, the user can do complete actions completely, and the training effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a sit-up training machine.
Fig. 2 is a front view of a sit-up training machine.
Fig. 3 is a schematic structural view of a leg position-limiting mechanism in the sit-up training machine.
Fig. 4 is a partially enlarged schematic view of a in fig. 3.
Fig. 5 is a partially enlarged view of B in fig. 3.
Fig. 6 is a schematic structural view of a back auxiliary supporting mechanism in the sit-up training machine.
Fig. 7 is a front view of fig. 6.
Fig. 8 is a schematic structural diagram of the matching of a push plate and a push rod in the sit-up training device.
In the figure: 1. a base plate; 2. a first support plate; 3. a fixed shaft; 4. rotating the bracket; 5. a first rotating shaft; 6. a seat plate; 7. a chute; 8. a slider; 9. a foot blocking lever; 10. a second rotating shaft; 11. a back plate; 12. a yielding groove; 13. a rotating roller; 14. a first limit hole; 15. a first mounting bracket; 16. a first limit rod; 17. a first spring; 18. a slide bar; 19. a second spring; 20. a first fixing plate; 21. a second limiting rod; 22. rotating the disc; 23. a second limiting hole; 24. a sliding plate; 25. a guide bar; 26. a screw rod; 27. a guide post; 28. a balancing weight; 29. a sliding seat; 30. a push rod; 31. a second fixing plate; 32. a third rotating shaft; 33. a second pulley; 34. a belt; 35. a first pulley; 36. pushing the plate; 37. a second support plate; 38. a leg limiting mechanism; 39. the back assists supporting mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment, please refer to fig. 1-8, a sit-up training device comprises a bottom plate 1, a first support plate 2 is arranged in the middle of the bottom plate 1, the first support plate 2 is arranged on both the front and rear sides of the middle of the bottom plate 1, a fixed shaft 3 is arranged at one end of the first support plate 2 far away from the bottom plate 1, a seat plate 6 is arranged on one side of the fixed shaft 3, the seat plate 6 is arranged on the left side of the fixed shaft 3, and the seat plate 6 is arranged in a manner of inclining to the left and lower, and a leg limiting mechanism 38 and a back auxiliary support mechanism 39;
the leg limiting mechanism 38 comprises a first rotating shaft 5 rotatably connected with the first supporting plate 2, the first rotating shaft 5 is arranged at the position, close to the middle of the first supporting plate 2, of the first rotating shaft 5, one side, far away from the seat plate 6, of the first rotating shaft 5 is rotatably connected with a rotating support 4, the rotating support 4 is arranged on the right side of the first rotating shaft 5, a sliding groove 7 is formed in the middle of the rotating support 4, the sliding groove 7 is slidably connected with a sliding block 8, the sliding block 8 is fixedly connected with a foot blocking rod 9, a length limiting assembly is arranged between the sliding block 8 and the sliding groove 7 and can limit the left and right positions of the sliding block 8 on the rotating support 4, an angle limiting assembly is arranged between the first rotating shaft 5 and the first supporting plate 2 and can limit the rotating angle of the first rotating shaft 5, namely the rotating angle of the rotating support 4;
the back auxiliary supporting mechanism 39 comprises a second rotating shaft 10 rotatably connected with the end part of the seat plate 6, a back plate 11 is arranged on one side of the second rotating shaft 10 far away from the seat plate 6, a second supporting plate 37 is arranged on one side of the bottom plate 1 near the back plate 11, the second supporting plate 37 is arranged under the second rotating shaft 10, the middle part of the second supporting plate 37 is rotatably connected with a third rotating shaft 32, the third rotating shaft 32 is connected with the second rotating shaft 10 through a transmission component, the second rotating shaft 10 and the third rotating shaft 32 can synchronously rotate, the transmission component comprises a first belt wheel 35 coaxially connected with the second rotating shaft 10, the first belt wheel 35 is connected with a second belt wheel 33 through a belt 34, the second belt wheel 33 is coaxially connected with the third rotating shaft 32, a push plate 36 is arranged on one side of the third rotating shaft 32 near the leg limiting mechanism 38, the push plate 36 inclines towards the upper right, a second fixing plate 31 is arranged on one side of the first supporting plate 2 near the bottom plate 1, the second fixing plate 31 is rotatably connected with the end part of the screw rod 26, the middle part of the screw rod 26 is in threaded connection with the sliding plate 24, a guide rod 25 is arranged between the second fixing plate 31 and the second supporting plate 37, the middle part of the guide rod 25 is in sliding connection with two sides of the sliding plate 24, a guide column 27 is arranged on one side of the sliding plate 24, which is far away from the bottom plate 1, a sliding seat 29 is in sliding connection with the middle part of the guide column 27, a push rod 30 matched with a push plate 36 is arranged on one side of the sliding seat 29, which is close to the center of the device, and a balancing weight 28 is arranged on one side of the sliding seat 29, which is far away from the center of the device.
In one aspect of this embodiment, referring to fig. 1, an avoiding groove 12 is formed in the middle of the back plate 11, and the middle of the avoiding groove 12 is rotatably connected to the rotating roller 13. Because the back of the user is leaned on the back plate 11 and the back plate 11 slightly moves relative to the back of the user in the using process of the whole device, in order to improve the comfort, a plurality of rotating rollers 13 which can freely rotate can be arranged on the back plate 11, and the surfaces of the fixed shaft 3 and the rotating rollers 13 are wrapped by flexible materials, so that the comfort is further improved.
In one aspect of this embodiment, referring to fig. 4, the length limiting component includes a first limiting hole 14 disposed at one side of the sliding groove 7, a first mounting bracket 15 is disposed at one end of the sliding block 8, a first limiting rod 16 slidably connected to the first mounting bracket 15 and engaged with the first limiting hole 14, and a first spring 17 is disposed between the first limiting rod 16 and the first mounting bracket 15. By drawing the first limit rod 16 upwards, the sliding block 8 can move left and right in the sliding groove 7, so that the left and right positions of the foot blocking rod 9 can be adjusted.
In one aspect of the present embodiment, referring to fig. 5, the angle limiting assembly includes a sliding rod 18 slidably connected to the first support plate 2, one end of the sliding rod 18 far away from the first support plate 2 is fixedly connected to one end of a first fixing plate 20, the other end of the first fixing plate 20 is provided with a second limiting rod 21, an end of the first rotating shaft 5 is provided with a rotating disc 22, and an outer side of the rotating disc 22 is provided with a second limiting hole 23 matched with the second limiting rod 21. The first rotation shaft 5 can be freely rotated by pulling the second stopper rod 21 outward, and when the second stopper rod 21 is loosened, the second stopper rod 21 is inserted into the second stopper hole 23, and the angle of the first rotation shaft 5 is locked. A second spring 19 is arranged between the first fixing plate 20 and the first supporting plate 2, and the second spring 19 is sleeved outside the sliding rod 18. The second spring 19 may provide a power for returning the second stopper rod 21.
In the implementation process of the embodiment, firstly, the device is placed on the ground, a user selects a counterweight 28 with a proper weight to be placed on the outer side of the sliding seat 29 through the knowledge of the user, the heavier the weight is, the smaller the force required to be provided by the user in the process of sit-up is, and meanwhile, the left and right positions of the sliding plate 24 can be adjusted by rotating the screw rod 26, so that the contact position of the push rod 30 and the push plate 36 can be adjusted, namely when the push rod 30 moves towards the right side of the push plate 36, the longer the power arm of the push rod 30 to the acting force of the push plate 36 is, and the larger the auxiliary force provided by the device to the user is.
After the auxiliary force of device is adjusted and is accomplished, the user can sit on seat 6, and put the shank in the left side that the foot blockked pole 9, can upwards extract first gag lever post 16 this moment, make slider 8 remove about, make the foot block pole 9 just in time in the position of ankle, simultaneously through extracting second gag lever post 21, make first pivot 5 begin to rotate, make the crooked angle of shank just in time in comfortable angle, whole device has been adjusted and is accomplished this moment, user to using this device for the first time can carry out approximate regulation, when the uncomfortable condition appears in the use, all can the stop motion again to this device adjust.
The user lies on the back to the left side, user's back relies on backplate 11 this moment, and under the effect of back gravity, backplate 11 anticlockwise rotation, and the inside at second pivot 10 sets up stop device, when backplate 11 rotates to the state parallel with seat 6, backplate 11 stall, the user can carry out the action of sit up this moment, back clockwise turning, this moment under the effect of balancing weight 28, push rod 30 promotes push pedal 36 clockwise turning, push pedal 36 drives third pivot 32 clockwise turning, third pivot 32 makes second pivot 10 clockwise turning through belt drive, thereby make backplate 11 have the auxiliary force that promotes to the right side to backplate 11 this moment, thereby make the action of the completion sit up that the user can be comparatively relaxed.
The invention is suitable for a sit-up trainer, and the back auxiliary supporting mechanism 39 is arranged, so that the back plate 11 can provide effective supporting force in the sit-up process of a user, and the size of the supporting force can be freely adjusted, so that the sit-up can be easily performed for the user with small muscle strength, on one hand, the body of the user can be effectively protected, on the other hand, the user can complete the exercise, and the training effect is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A sit-up trainer comprises a bottom plate, wherein a first supporting plate is arranged in the middle of the bottom plate, a fixed shaft is arranged at one end, far away from the bottom plate, of the first supporting plate, and a seat plate is arranged on one side of the fixed shaft;
the leg limiting mechanism comprises a first rotating shaft rotationally connected with the first supporting plate, one side of the first rotating shaft, which is far away from the seat plate, is rotationally connected with a rotating support, the middle part of the rotating support is provided with a sliding groove, the sliding groove is connected with a sliding block in a sliding manner, the sliding block is fixedly connected with a foot blocking rod, a length limiting assembly is arranged between the sliding block and the sliding groove, and an angle limiting assembly is arranged between the first rotating shaft and the first supporting plate;
the back auxiliary supporting mechanism comprises a second rotating shaft which is rotatably connected with the end part of a seat plate, a back plate is arranged on one side, away from the seat plate, of the second rotating shaft, a second supporting plate is arranged on one side, close to the back plate, of a bottom plate, a third rotating shaft is rotatably connected with the middle part of the second supporting plate, the third rotating shaft is connected with the second rotating shaft through a transmission assembly, a push plate is arranged on one side, close to a leg limiting mechanism, of the third rotating shaft, a second fixing plate is arranged on one side, close to the bottom plate, of the first supporting plate, the end part of a lead screw is rotatably connected with the second fixing plate, a middle threaded connection sliding plate of the lead screw is arranged on one side, away from the bottom plate, of the sliding plate, a guide column is arranged on one side, close to the center of the sliding seat, a push rod matched with the push plate is arranged on one side, away from the center of the sliding seat, and a balancing weight is arranged on one side, away from the center of the sliding seat.
2. The sit-up trainer as claimed in claim 1, wherein the transmission assembly comprises a first pulley coaxially connected to the second shaft, the first pulley being connected to the second pulley via a belt, the second pulley being coaxially connected to the third shaft.
3. The sit-up training apparatus of claim 1, wherein a guide bar is provided between the second fixing plate and the second supporting plate, and the middle part of the guide bar is slidably connected to both sides of the sliding plate.
4. The sit-up trainer as claimed in claim 1, wherein the middle part of the back plate is provided with an abdicating groove, and the middle part of the abdicating groove is rotatably connected with the rotating roller.
5. The sit-up training apparatus as claimed in claim 4, wherein the fixed shaft and the rotating roller are coated with a flexible material.
6. The sit-up trainer as claimed in claim 1, wherein the length limiting component comprises a first limiting hole disposed at one side of the sliding groove, a first mounting bracket is disposed at one end of the sliding block, a first limiting rod matched with the first limiting hole is slidably connected to the first mounting bracket, and a first spring is disposed between the first limiting rod and the first mounting bracket.
7. The sit-up training device as claimed in claim 1, wherein the angle limiting member comprises a sliding rod slidably connected to the first supporting plate, one end of the sliding rod remote from the first supporting plate is fixedly connected to one end of the first fixing plate, the other end of the first fixing plate is provided with a second limiting rod, the end of the first rotating shaft is provided with a rotating disc, and the outer side of the rotating disc is provided with a second limiting hole matched with the second limiting rod.
8. The sit-up training aid of claim 7, wherein a second spring is disposed between the first fixing plate and the first supporting plate, and the second spring is sleeved outside the sliding rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110815078.9A CN113457079B (en) | 2021-07-19 | 2021-07-19 | Sit-up trainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110815078.9A CN113457079B (en) | 2021-07-19 | 2021-07-19 | Sit-up trainer |
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| Publication Number | Publication Date |
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| CN113457079A CN113457079A (en) | 2021-10-01 |
| CN113457079B true CN113457079B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110815078.9A Active CN113457079B (en) | 2021-07-19 | 2021-07-19 | Sit-up trainer |
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| CN (1) | CN113457079B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114129965B (en) * | 2021-11-23 | 2022-12-09 | 云阳县彭咏梧小学 | Sports is with single sit up training chair |
| CN115054862B (en) * | 2022-05-25 | 2023-08-08 | 郑州大学 | Adjustable limb movement rehabilitation equipment |
| CN114904225B (en) * | 2022-05-25 | 2023-07-18 | 郑州大学 | Leg rehabilitation nursing device for preventing muscular atrophy |
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| CN202666293U (en) * | 2012-03-30 | 2013-01-16 | 胡江勇 | Supine abdominal curl machine |
| KR20140052148A (en) * | 2012-10-19 | 2014-05-07 | 이상민 | Sit-up bench |
| CN106039644A (en) * | 2016-06-30 | 2016-10-26 | 三明学院 | Multi-purpose sit-up board |
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| CN206700609U (en) * | 2017-05-04 | 2017-12-05 | 钟子毅 | A kind of sit-ups servicing unit |
| CN206715156U (en) * | 2017-03-17 | 2017-12-08 | 王宇宙 | A kind of multi-gym |
| CN109173162A (en) * | 2018-11-05 | 2019-01-11 | 刘海龙 | A kind of sit-up exercise device |
| CN112587868A (en) * | 2020-11-16 | 2021-04-02 | 周发 | Sitting type body-building exercise chair |
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2021
- 2021-07-19 CN CN202110815078.9A patent/CN113457079B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6340342B1 (en) * | 1999-06-16 | 2002-01-22 | Jason Lee | Multipurpose exercising apparatus |
| CN202666293U (en) * | 2012-03-30 | 2013-01-16 | 胡江勇 | Supine abdominal curl machine |
| KR20140052148A (en) * | 2012-10-19 | 2014-05-07 | 이상민 | Sit-up bench |
| CN106039644A (en) * | 2016-06-30 | 2016-10-26 | 三明学院 | Multi-purpose sit-up board |
| CN206198573U (en) * | 2016-11-28 | 2017-05-31 | 王娟 | A kind of athletic training Multifunctional situp frame |
| CN206715156U (en) * | 2017-03-17 | 2017-12-08 | 王宇宙 | A kind of multi-gym |
| CN206700609U (en) * | 2017-05-04 | 2017-12-05 | 钟子毅 | A kind of sit-ups servicing unit |
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| CN112587868A (en) * | 2020-11-16 | 2021-04-02 | 周发 | Sitting type body-building exercise chair |
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| CN113457079A (en) | 2021-10-01 |
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