Sit-up physical training device
By installing a head support component and an electric horn prompting device on the sit-up board, the problems of head congestion and incomplete movement were solved, thereby improving movement detection and training effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JUDICIAL POLICE OFFICER VOCATIONAL COLLEGE
- Filing Date
- 2023-12-28
- Publication Date
- 2026-05-01
AI Technical Summary
Existing sit-up board structures are prone to causing head congestion and incomplete movement, resulting in poor training effects and wasted time.
Design a sit-up fitness training device, including a horizontal lying board, a head support component, a foot hook board, a counter, and an electric horn. The device detects the correct movement by a contact switch on the head support component and emits an audible signal to the trainee to indicate that the movement is correct.
It effectively detects whether the trainee's movements are in place, reduces the risk of head congestion, improves training efficiency, and saves time for human judgment.
Smart Images
Figure CN224180185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of physical training devices, and in particular to a sit-up physical training device. Background Technology
[0002] Sit-ups are a common exercise in physical recovery training. There are various types of sit-up equipment, the most common being sit-up boards, such as the adjustable sit-up device disclosed in patent CN219128181U, which is also the most common type on the market. These mainly consist of an arc-shaped bench with a foot hook at one end. This structure requires the trainee to repeatedly lower their head, which can easily cause cerebral congestion and pose a certain risk. Some horizontal benches also exist on the market, which also have a foot hook at one end. The trainee lies on the horizontal bench, hooks their feet, and repeatedly sits up. However, this type of flat bench training equipment easily leads to incomplete sit-up movements, necessitating the design of a sit-up device that can detect whether the movement is correct. Utility Model Content
[0003] Existing sit-up boards vary in type, but most have similar structures, consisting of a lying board and a footrest. Current lying boards are mainly curved or horizontal. Curved boards, with the head repeatedly tilted downwards, can easily cause cerebral congestion and pose a certain risk. Flat boards can lead to improper form during training (referring to the upper limbs swinging back and forth, and an inability to lie flat or sit upright), not only failing to achieve the training effect but also wasting time. This application designs a sit-up physical training device, the specific technical solution of which is as follows:
[0004] A sit-up fitness training device includes a horizontally positioned lying board. One end of the lying board has a head support component, and the other end has a foot hook. The head support component has a first contact switch inside, and the contacts of the first contact switch are located on the upper surface of the head support component. The first contact switch is connected to a counter, which is located on the upper surface of the lying board and on one side of the head support component. A trigger component is movably provided near the side of the lying board, extending above the lying board and capable of being triggered by the trainee. The trigger component is connected to a second contact switch, and the second contact switch is connected to an electric horn.
[0005] Preferably, the triggering component includes a movable frame, a second contact switch and an electric horn, all of which are disposed on the movable frame. The movable frame is movably disposed at the side edge of the lying board along the length direction of the lying board. A trigger rod is vertically and rotatably connected to the top of the movable frame. A torsion spring is connected to the trigger rod at the rotatable connection point with the movable frame. The rotatable connection end of the trigger rod is connected to the second contact switch.
[0006] Preferably, the reclining board is provided with a guide rail near one of its edges, the bottom end of the movable frame is set in the guide rail, the side of the guide rail is provided with a long strip groove along its length, and the bottom end of the movable frame is provided with a threaded connecting rod vertically, the threaded connecting rod is inserted into the long strip groove and fixed by a nut.
[0007] Preferably, the trigger rod is an L-shaped rod, and a sponge ball is connected to one end of the L-shaped rod extending above the lying board.
[0008] Preferably, the reclining board includes a first plate and a second plate, a head support component and a counter are disposed on the first plate, and a foot hook plate is disposed on the second plate. The first plate and the second plate are fastened together by a snap fastener.
[0009] Preferably, the four corners at the bottom of the lying board are equipped with wheels.
[0010] Preferably, the hook plate includes a column, with guide grooves on both sides of the column, and a horizontal column vertically installed in each guide groove. A lifting component is connected to the circumferential surface of the horizontal column, and the lifting component drives the horizontal column to rise and fall.
[0011] Preferably, two horizontal plates are symmetrically and vertically provided at the top of the column, and the lifting component includes a threaded rod, the bottom end of which is connected to the horizontal column, and the top end is threadedly connected to a nut rotatably mounted on the horizontal plate.
[0012] Preferably, the lying board is provided with a slide rail along its length, the column is slidably mounted on the slide rail, and threaded cylinders are symmetrically provided on the column. A screw is threadedly connected to the inside of the threaded cylinder. The locking and releasing of the column in the slide rail is achieved by changing the depth of the screw screw into the threaded cylinder.
[0013] This invention features a first contact switch at the head support component. When the trainee is lying supine, their head triggers the first contact switch, which transmits a signal to a counter. The counter counts and displays the valid numbers. When sitting up, the front of the body triggers the trigger point, causing the electric horn to emit a ticking sound. Otherwise, the movement is not complete. This constitutes a valid sit-up. The above method can detect whether the trainee's movement is complete. Attached Figure Description
[0014] Figure 1 is a perspective view of this utility model;
[0015] Figure 2 is a cross-sectional view of the deck;
[0016] Figure 3 is a schematic diagram of the connection between the trigger rod and the moving frame, as well as the locking structure of the column.
[0017] In the diagram, 1. Lying board, 101. Second plate, 102. First plate, 2. Traveling wheel, 3. Slide rail, 4. Hook plate, 401. Column, 402. Guide groove, 403. Horizontal column, 404. Threaded rod, 405. Horizontal plate, 406. Threaded sleeve, 407. Screw, 408. Threaded cylinder, 5. Guide rail, 6. Triggering component, 601. Moving frame, 602. Electric horn, 603. Trigger rod, 604. Sponge ball, 605. Threaded connecting rod, 606. Second contact switch, 607. Torsion spring, 7. Head support component, 8. Counter, 9. First contact switch, 10. Long strip groove, 11. Nut. Detailed Implementation
[0018] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.
[0019] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0020] As shown in Figures 1-3, a sit-up fitness training device includes a horizontally positioned lying board 1. The lying board 1 can be a wooden board, a stainless steel plate, or a metal or non-metal plate made of other materials. A head support component 7 is located on the upper surface of the lying board 1 near the right end. This head support component 7 is similar to an existing needle, except that it is fixed to the lying board 1 using screws or glue. The head support component 7 is filled with sponge, soft cotton, or fabric. A foot hook 4 is located on the left end of the upper surface of the lying board 1. During training, the foot hook 4 hooks the feet to prevent them from lifting off the ground. The head support component 7 is equipped with a first contact switch 9. The contacts of the first contact switch 9 are located on the upper surface of the head support component 7, ensuring that the first contact switch 9 is triggered when the trainee's head contacts the head support component 7. The first contact switch 9 is connected to a counter 8, which is located on the upper surface of the reclining board 1. The counter 8 is used for counting and displaying, and it is embedded in the upper surface of the reclining board 1 and located on the right side of the head support component 7. In this way, the counter 8 does not occupy any external space and is easy to view. At the same time, a trigger component 6 is movably located near the rear side of the reclining board 1. The trigger component 6 extends above the reclining board 1 and can be triggered by the trainee when sitting up. The trigger component 6 is connected to a second contact switch 606, which is connected to an electric horn 602. When triggered, the electric horn 602 rings once. The 15 ticks emitted by the electric horn 602 indicate whether the movement is in place, saving subjective judgment.
[0021] Furthermore, the structure of the aforementioned triggering component 6 specifically includes a movable frame 601, which is essentially a vertical rod. The second contact switch 606 and the electric horn 602 are both located near the top of the movable frame 601. The movable frame 601 is movably positioned along the length of the reclining board 1 at the rear edge of the reclining board 1. A trigger rod 603 is vertically and rotatably connected to the top of the movable frame 601. A torsion spring 607 is connected to the rotatable connection between the trigger rod 603 and the movable frame 601. Specifically, the end of the torsion spring 607 is embedded in the circumferential surface of the trigger rod 603 and fixedly connected to the trigger rod 603. The rotatable connection end of the trigger rod 603 is connected to the second contact switch 606. When the trigger rod 603 is triggered and rotated by the trainee, its end triggers the second contact switch 606, which causes the electric horn 602 to ring, indicating that the trainee's training action is in place.
[0022] Furthermore, regarding the specific mechanism for the movable frame 601 to move on the reclining board 1, a guide rail 5 is provided near the rear edge of the reclining board 1. The bottom end of the movable frame 601 is set inside the guide rail 5. A long strip groove 10 is provided along the length of the rear side of the guide rail 5. A threaded connecting rod 605 is vertically provided at the bottom end of the movable frame 601. The threaded connecting rod 605 is inserted into the long strip groove 10 and fixed by a nut 11. When it is necessary to fix the movable frame 601, the nut 11 is tightened, and the movable frame 601 is fixed inside the guide rail 5. When it is necessary to move the movable frame 601, the nut 11 is loosened, and the position of the movable frame 601 can be adjusted. By adjusting the position of the movable frame 601, it can be adapted to use by trainees of different heights.
[0023] Furthermore, the trigger lever 603 is an L-shaped lever, and a sponge ball 604 is connected to one end of the L-shaped lever that extends above the lying board 1. The sponge ball 604 can buffer the impact force of the trigger lever 603 on the trainee and reduce the injury to the trainee.
[0024] Furthermore, the aforementioned reclining board 1 includes a first board body 102 and a second board body 101. A head support component 7 and a counter 8 are disposed on the first board body 102, and a foot hook board 4 is disposed on the second board body 101. The first board body 102 and the second board body 101 are fastened together by snap-fit. When not in use, the first board body 102 and the second board body 101 can be disassembled for easy placement and transportation. When in use, they can be used normally by fastening together with snap-fit.
[0025] Furthermore, to allow for repositioning during use, four wheels 2 are provided at the bottom corners of the aforementioned reclining board 1. These wheels 2 are equipped with locking mechanisms; they are locked during training and released when repositioning is required. The locking mechanism of the wheels 2 is existing technology; therefore, this application will not describe the specific structure of the wheels 2 in detail.
[0026] Furthermore, the specific structure of the aforementioned foot hook plate 4 includes a column 401, with guide grooves 402 vertically arranged on both sides of the column 401. A horizontal column 403 is vertically arranged in each guide groove 402. A lifting component is connected to the circumferential surface of the horizontal column 403. The lifting component drives the horizontal column 403 to rise and fall. The lifting component can adapt to the needs of different trainees by raising and lowering the horizontal column 403.
[0027] Furthermore, the structure of the aforementioned lifting component is described in detail as follows: two horizontal plates 405 are symmetrically and vertically arranged at the top of the column 401. The lifting component includes a threaded rod 404. The bottom end of the threaded rod 404 is connected to the horizontal column 403, and the top end is threadedly connected to a threaded sleeve 406 rotatably mounted on the horizontal plate 405. This adjustment method is simple, convenient, and allows for quick adjustment.
[0028] Furthermore, in order to fix the hook plate 4 in a certain position, a slide rail 3 is provided along the length of the lying plate 1. The column 401 is slidably set on the slide rail 3. Threaded cylinders 408 are symmetrically provided on the column 401. The threaded cylinders 408 are internally threaded with screws 407. When fixing the column 401 to the slide rail 3, the depth of the screws 407 screwed into the threaded cylinders 408 is reduced, so that the two screws 407 abut against the side wall of the slide rail 3 to fix the column 401. When moving the position of the column 401, the depth of the screws 407 screwed into the threaded cylinders 408 is increased, and the two screws 407 are moved away from the side wall of the slide rail 3. This method of fixing is simple, adjustment is quick, and it is convenient to use.
[0029] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.
[0030] Any aspects of this utility model not described in detail are known to those skilled in the art.
Claims
1. A sit-up physical training device, characterized by The device includes a horizontally positioned reclining board. One end of the reclining board has a head support component, and the other end has a foot hook. The head support component has a first contact switch inside, with its contacts located on the upper surface of the head support component. The first contact switch is connected to a counter, which is located on the upper surface of the reclining board and on one side of the head support component. A trigger component is movably located near the side of the reclining board, extending above the reclining board and capable of being triggered by the trainee. The trigger component is connected to a second contact switch, which is connected to an electric horn.
2. A sit-up body exercise device as claimed in claim 1, characterized in that The triggering component includes a movable frame, the second contact switch and the electric horn are both disposed on the movable frame, the movable frame is movably disposed at the side edge of the lying board along the length direction of the lying board, the top of the movable frame is vertically and rotatably connected to a trigger rod, the trigger rod is connected to a torsion spring at the rotatable connection point with the movable frame, and the rotatable connection end of the trigger rod is connected to the second contact switch.
3. The sit-up physical training device according to claim 2, characterized in that, The reclining board is provided with a guide rail near one of its edges. The bottom end of the movable frame is located inside the guide rail. The side of the guide rail is provided with an elongated groove along its length. The bottom end of the movable frame is provided with a threaded connecting rod, which is inserted into the elongated groove and fixed by a nut.
4. A sit-up exercise device as defined in claim 3 wherein: The trigger rod is an L-shaped rod, and a sponge ball is connected to one end of the L-shaped rod extending above the reclining board.
5. A sit-up exercise device as defined in claim 1 wherein, The reclining board includes a first board and a second board. The head support component and the counter are disposed on the first board, and the foot hook is disposed on the second board. The first board and the second board are fastened together by a snap fastener.
6. A sit-up body exercise device according to claim 1 or 5, wherein The lying board is equipped with wheels at the four corners at the bottom.
7. A sit-up exercise device as defined in claim 1 wherein, The hook plate includes a column, and guide grooves are provided on both sides of the column. A horizontal column is vertically provided in each guide groove. A lifting component is connected to the circumferential surface of the horizontal column, and the lifting component drives the horizontal column to rise and fall.
8. A sit-up exercise device as defined in claim 7 wherein, The top of the column is symmetrically and vertically provided with two horizontal plates. The lifting component includes a threaded rod, the bottom end of which is connected to the horizontal column, and the top end is threadedly connected to a nut rotatably mounted on the horizontal plate.
9. A sit-up exercise device as defined in claim 8 wherein, The reclining board is provided with a slide rail along its length, and the column is slidably mounted on the slide rail. Threaded cylinders are symmetrically provided on the column, and a screw is threadedly connected to the inside of the threaded cylinder. The column can be locked and released within the slide rail by changing the depth to which the screw is screwed into the threaded cylinder.