CN215025702U

CN215025702U - Sit-up board for military training and examination

Info

Publication number: CN215025702U
Application number: CN202120432162.8U
Authority: CN
Inventors: 苏航; 杨洁; 李瑜; 何翠; 王贤彬
Original assignee: Chinese Peoples Armed Police Force Academy
Current assignee: Chinese Peoples Armed Police Force Academy
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-12-07
Anticipated expiration: 2031-02-26

Abstract

The utility model discloses a sit-up board for military training and examination, including a first support rod, the outer wall middle part rigid coupling of first support rod has the slope rigid coupling to have the pole setting, the top sliding connection of pole setting is in the movable rod, a side of movable rod has a first horizontal pole through first bolt rigid coupling, the both ends of first horizontal pole all overlap and are equipped with first heavy cotton, the top of movable rod runs through has a second horizontal pole, a side of movable rod rotates through adjustment mechanism and is connected with a second arc supporting beam, first arc supporting beam rigid coupling is at the outer wall of second support rod, be equipped with fixed subassembly on a side of first arc supporting beam, the top surface of first arc supporting beam is equipped with the second service creeper, sliding connection has a first service creeper in the first arc wall, the other end of first service creeper sets up on the top surface of support frame; the utility model is convenient for adjusting the angle of the sit-up plate, thereby facilitating people to use the sit-up plate; the length between the lying plates can be conveniently adjusted, thereby being convenient for people with different heights to use.

Description

Sit-up board for military training and examination

Technical Field

The utility model relates to a technical field of sit up board especially relates to a sit up board is used in military training examination.

Background

Sit-up is 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 the sitting posture is restored; so as to continuously carry out; the sit-up is also used in military training, and the sit-up board is required to be used when doing sit-up, the existing sit-up boards are fixed, and the length of the sit-up board cannot be adjusted according to the height of a person, so that people with different heights cannot conveniently do sit-up exercise; meanwhile, the angle of the existing sit-up board is not convenient to adjust, and the angle of the lying board cannot be adjusted according to the physical ability of the person, so that the person is not convenient to take exercise.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sit-up board for military training and examination, which aims at solving the defect of poor practicability in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sit-up board for military training and examination comprises a first supporting rod, wherein the middle part of the outer wall of the first supporting rod is fixedly connected with an inclined fixedly connected rod, a plurality of threaded holes are formed in one side surface of the rod, the top of the rod is slidably connected into a movable rod, a plurality of first limiting holes are formed in one side surface of the rod, the diameter of each first limiting hole is equal to that of each threaded hole, a first cross rod is fixedly connected to one side surface of the movable rod through a first bolt, first heavy cotton is sleeved at the two ends of the first cross rod, a second cross rod penetrates through one side surface of the top of the movable rod, second heavy cotton is sleeved at the two ends of the second cross rod, a second arc-shaped supporting beam is rotatably connected to one side surface of the movable rod through an adjusting mechanism, one end of the second arc-shaped supporting beam is slidably connected to the first arc-shaped supporting beam, the utility model discloses a support frame, including first arc supporting beam, second arc supporting beam, first arc supporting beam's the other end rigid coupling of first arc supporting beam is at the outer wall middle part of second bracing piece, a side of second arc supporting beam is equipped with the spacing hole of a plurality of second, be equipped with fixed subassembly on one side of first arc supporting beam, first arc supporting beam's top surface is equipped with the second service creeper, just first arc wall has been seted up to a side of second service creeper, sliding connection has first service creeper in the first arc wall, the other end setting of first service creeper is on the top surface of support frame, the bottom surface rigid coupling of support frame is on second arc supporting beam's top surface.

Preferably, adjustment mechanism includes U template, limit gear, connecting axle, the first in command, spacing subassembly, a side rigid coupling of movable rod has the U template, a side of U template rotates and is connected with the connecting axle, the other end activity of connecting axle runs through the another side of U template, the rigid coupling has limit gear on the other end outer wall of connecting axle, just tooth slope on the limit gear sets up, the one end tip rigid coupling of connecting axle has the first in command, the rigid coupling has a second arc supporting beam on the outer wall of the connecting axle in the U template, a side of movable rod is equipped with spacing subassembly, gag lever post and the meshing of limit gear among the spacing subassembly.

Preferably, the limiting component comprises a rectangular block, a first movable rod, a first spring, a limiting rod, a second spring, a first movable plate, a fixed rod and a reset piece, wherein a rectangular block is fixedly connected to one side face of the movable rod, a first rectangular groove is formed in one side face of the rectangular block, the first movable rod penetrates through one side face of the first rectangular groove in a movable manner, a second handle is fixedly connected to one end portion of the first movable rod, a first movable plate is fixedly connected to the other end portion of the first movable rod, the first movable plate is slidably connected into the first rectangular groove, the limiting rod is fixedly connected to one side face of the first movable plate, one end of the bottom face of the limiting rod is an inclined face, the first spring is arranged on the outer wall of the first movable rod, one end of the first spring is fixedly connected to one side face of the first rectangular groove, the other end of the first spring is fixedly connected to one side face of the first movable plate, the second rectangular channel has been seted up at the top surface middle part of first fly leaf, the bottom rigid coupling of second rectangular channel has the second spring, the top rigid coupling of second spring has the dead lever, dead lever sliding connection is in the second rectangular channel, the top surface middle part rigid coupling of rectangular block has the bar piece, be equipped with the piece that resets in the bar piece.

Preferably, the piece that resets includes second fly leaf, third spring, second movable rod, be equipped with the third rectangular channel in the bar piece, just third rectangular channel and first rectangular channel intercommunication, the top activity of third rectangular channel is run through there is the second movable rod, the one end of second movable rod slides and runs through there is the second fly leaf, just second fly leaf sliding connection is in the third rectangular channel, be equipped with the third spring on the outer wall of second movable rod, the one end rigid coupling of third spring is at the top surface of third rectangular channel, the other end rigid coupling of third spring is on the side of second fly leaf.

Preferably, fixed subassembly includes square piece, limiting plate, third movable rod, fourth spring, the fourth rectangular channel has been seted up to a side of square piece, the third movable rod has been run through in a side activity of fourth rectangular channel, the one end tip rigid coupling of third movable rod has the third handle, the other end activity of third movable rod runs through first arc supporting beam, just the cooperation of third movable rod and second spacing hole, sliding connection has the limiting plate on the other end outer wall of third movable rod, just limiting plate sliding connection is in the fourth rectangular channel, be equipped with the fourth spring on the outer wall of third movable rod, the one end rigid coupling of fourth spring is on the side of limiting plate, the other end rigid coupling of fourth spring is on the top surface of fourth rectangular channel.

Preferably, both ends of the first supporting rod and the second supporting rod are provided with non-slip pads, and each non-slip pad is made of rubber.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model is convenient for adjusting the length of the sit-up plate through the mutual cooperation of the fixing component, the first arc-shaped supporting beam, the second arc-shaped supporting beam, the first lying plate and the second lying plate, thereby being suitable for people with different heights; meanwhile, the first cross rod, the first heavy cotton, the second heavy cotton and the second cross rod are mutually used, so that the flexibility of the sit-up plate is improved conveniently;

2. through U template, limiting gear, connecting axle, the first in command, spacing subassembly, be convenient for adjust the angle of service creeper, be convenient for adjust the sit up board and be fit for the user and use to improve the commonality of sit up board.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limitation. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of a front view angle of the present invention;

fig. 4 is a schematic structural diagram of the adjusting mechanism of the present invention;

number in the figure: 1. a first support bar; 2. erecting a rod; 3. a first heavy cotton; 4. a first cross bar; 5. a movable rod; 6. second heavy cotton; 7. a second cross bar; 8. a first arc-shaped support beam; 9. a first lying plate; 10. a fixing assembly; 11. a second lying plate; 12. a second arc-shaped support beam; 13. a second support bar; 14. a rectangular block; 15. a limit gear; 16. a connecting shaft; 17. A first movable bar; 18. a first spring; 19. a limiting rod; 20. a second spring; 21. a first movable plate; 22. fixing the rod; 23. a second movable plate; 24. a third spring; 25. a second movable bar.

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.

Example 1: referring to fig. 1-4, a sit-up board for military training and examination comprises a first supporting rod 1, wherein the middle part of the outer wall of the first supporting rod 1 is fixedly connected with an inclined vertical rod 2 in a slant and fixed mode, one side surface of the vertical rod 2 is provided with a plurality of threaded holes, the top of the vertical rod 2 is connected in a movable rod 5 in a sliding mode, one side surface of the vertical rod 2 is provided with a plurality of first limiting holes, the diameter of each first limiting hole is the same as that of the threaded hole, a first bolt movably penetrates through a first cross rod 4, and the first bolt is in threaded connection with the threaded holes; the two ends of the first cross rod 4 are respectively sleeved with first heavy cotton 3, one side surface of the top of the movable rod 5 penetrates through the second cross rod 7, the two ends of the second cross rod 7 are respectively sleeved with second heavy cotton 6, one side surface of the movable rod 5 is rotatably connected with a second arc-shaped supporting beam 12 through an adjusting mechanism, the angle of the lying plate can be conveniently adjusted, the sit-up plate can be conveniently adjusted to be suitable for a user to use, and therefore the universality of the sit-up plate is improved; one end of a second arc-shaped supporting beam 12 is connected to the first arc-shaped supporting beam 8 in a sliding mode, the other end of the first arc-shaped supporting beam 8 is fixedly connected to the middle of the outer wall of a second supporting rod 13, a plurality of second limiting holes are formed in one side face of the second arc-shaped supporting beam 12, and a fixing assembly 10 is arranged on one side face of the first arc-shaped supporting beam 8 and is convenient for fixing a first lying plate 9 and a second lying plate 11, so that the sit-up plate can be used for different heights conveniently; the top surface of the first arc-shaped supporting beam 8 is provided with a second lying plate 11, the bottom surface of the second lying plate 11 is symmetrically and fixedly connected with connecting sheets, and each connecting sheet is fixedly connected to the side surface of the first arc-shaped supporting beam 8 through a second bolt, so that the second lying plate 11 is convenient to mount and dismount, and the second lying plate 11 is convenient to replace; a first arc-shaped groove is formed in one side face of the second lying plate 11, the first lying plate 9 is connected in the first arc-shaped groove in a sliding mode, connecting sheets are symmetrically and fixedly connected to the bottom face of the first lying plate 9, and each connecting sheet is fixedly connected to the side face of the second arc-shaped supporting beam 12 through a third bolt; the other end setting of first service creeper 9 is on the top surface of support frame, and the bottom surface rigid coupling of support frame is on the top surface of second arc supporting beam 12, and the both ends of first bracing piece 1 and second bracing piece 13 all are equipped with the slipmat, and the material of every slipmat is the rubber material, is convenient for and ground contact, avoids destroying ground simultaneously.

The utility model discloses a, adjustment mechanism includes the U template, limit gear 15, connecting axle 16, the first in command, spacing subassembly, a side rigid coupling of movable rod 5 has the U template, a side of U template rotates and is connected with connecting axle 16, the other end activity of connecting axle 16 runs through the another side of U template, the rigid coupling has limit gear 15 on the other end outer wall of connecting axle 16, and tooth slope setting on the limit gear 15, the one end tip rigid coupling of connecting axle 16 has the first in command, the rigid coupling has second arc supporting beam 12 on the outer wall of connecting axle 16 in the U template, a side of movable rod 5 is equipped with spacing subassembly, be convenient for second arc supporting beam 12; a limit rod 19 in the limit assembly is engaged with the limit gear 15.

In the utility model, the limiting component comprises a rectangular block 14, a first movable rod 17, a first spring 18, a limiting rod 19, a second spring 20, a first movable plate 21, a fixed rod 22 and a reset piece, wherein a side surface of the movable rod 5 is fixedly connected with the rectangular block 14, a side surface of the rectangular block 14 is provided with a first rectangular groove, a side surface of the first rectangular groove is movably penetrated with the first movable rod 17, one end part of the first movable rod 17 is fixedly connected with a second handle, the other end of the first movable rod 17 is fixedly connected with the first movable plate 21, the first movable plate 21 is slidably connected in the first rectangular groove, a side surface of the first movable plate 21 is fixedly connected with the limiting rod 19, one end of the bottom surface of the limiting rod 19 is an inclined surface, the outer wall of the first movable rod 17 is provided with the first spring 18, one end of the first spring 18 is fixedly connected on a side surface of the first rectangular groove, the other end of the first spring 18 is fixedly connected on a side surface of the first movable plate 21, the second rectangular channel has been seted up at the top surface middle part of first fly leaf 21, and the bottom rigid coupling of second rectangular channel has second spring 20, and the top rigid coupling of second spring 20 has dead lever 22, and dead lever 22 sliding connection is in the second rectangular channel, and the top surface middle part rigid coupling of rectangular block 14 has the bar piece, is equipped with the piece that resets in the bar piece, is convenient for make dead lever 22 reset to the restoration of the gag lever post 19 of being convenient for.

The utility model discloses in, the piece that resets includes second fly leaf 23, third spring 24, second movable rod 25, be equipped with the third rectangular channel in the bar piece, and third rectangular channel and first rectangular channel intercommunication, the top activity of third rectangular channel is run through there is second movable rod 25, the one end of second movable rod 25 slides and runs through there is

second fly leaf

23, and 23 sliding connection of second fly leaf are in the third rectangular channel, be equipped with third spring 24 on the outer wall of second movable rod 25, the one end rigid coupling of third spring 24 is at the top surface of third rectangular channel, the other end rigid coupling of third spring 24 is on the side of second fly leaf 23.

The utility model discloses in, fixed subassembly 10 includes square piece, the limiting plate, the third movable rod, the fourth spring, the fourth rectangular channel has been seted up to a side of square piece, a side activity of fourth rectangular channel is run through there is the third movable rod, the one end tip rigid coupling of third movable rod has the third handle, the other end activity of third movable rod runs through a first arc supporting beam 8, and the cooperation of third movable rod and the spacing hole of second, sliding connection has the limiting plate on the other end outer wall of third movable rod, and limiting plate sliding connection is at the fourth rectangular channel, be equipped with the fourth spring on the outer wall of third movable rod, the one end rigid coupling of fourth spring is on the side of limiting plate, the other end rigid coupling of fourth spring is on the top surface of fourth rectangular channel.

Example 2: when the utility model is used, the length of the lying plate is firstly adjusted according to the height of a person; the third handle is pulled outwards to drive the third movable rod to move, so that the third movable rod is separated from the second limiting hole, the first arc-shaped supporting beam 8 can move conveniently, and the length between the first arc-shaped supporting beam 8 and the second arc-shaped supporting beam 12 is increased by pulling the first arc-shaped supporting beam 8; when the first arc-shaped supporting beam 8 moves, the second lying plate 11 is driven to move, so that the distance between the second lying plate 11 and the first lying plate 9 is increased, people with different heights can use the sit-up plate conveniently, and when the sit-up plate is adjusted to a proper position, the third handle is loosened; because the third handle can drive the limiting plate and remove when driving the third movable rod and remove to make the fourth spring compressed, the reaction force through the fourth spring drives the limiting plate and removes, thereby removes the third movable rod to the spacing downthehole of second, thereby fixes a first arc supporting beam 8 and a second arc supporting beam 12.

When the angle of the sit-up plate needs to be adjusted, the first handle is rotated to drive the connecting shaft 16 to rotate, so that the second arc-shaped supporting beam 12 is driven to rotate, and the angle of the sit-up plate is adjusted through the first handle, so that the angle of the sit-up plate can be conveniently changed according to the body constitutions of different people; meanwhile, when the connecting shaft 16 rotates, the limiting gear 15 is driven to rotate, so that the limiting rod 19 moves towards the first rectangular groove, and the limiting rod 19 automatically resets under the action of the first spring 18, so that the limiting gear 15 is clamped; when the angle modulation initial position of sit up board is with needs, drive first movable rod 17 through the pulling second handle and remove to drive first movable plate 21 and remove, when first movable plate 21 removed the third rectangular channel, dead lever 22 in the first movable rod 17 was by jack-up under the effect of second spring 20, thereby with dead lever 22 joint in the third rectangular channel, thereby make the separation of gag lever post 19, adjusted the initial position through the angle of adjusting the first in command with the sit up board.

When the limiting rod 19 needs to be reset, the second movable rod 25 is pressed downwards, the fixed rod 22 is further pressed into the first rectangular groove, and the first movable plate 21 drives the first spring 18 to move when moving into the first rectangular groove, so that the first spring 18 is compressed; when the fixed rod 22 and thus the first rectangular groove move, the first movable plate 21 is driven by the reaction force of the first spring 18 to move outward of the first rectangle, so as to reset the limiting rod 19.

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

1. The utility model provides a military training is examined and is used sit up board, includes first bracing piece (1), its characterized in that: the outer wall middle part rigid coupling of first bracing piece (1) has slope rigid coupling to have pole setting (2), a plurality of screw hole has been seted up to a side of pole setting (2), the top sliding connection of pole setting (2) is in movable rod (5), a plurality of first spacing hole has all been seted up to a side of pole setting (2), and every the diameter in first spacing hole all is the same with the diameter of screw hole, a side of movable rod (5) has first horizontal pole (4) through first bolt rigid coupling, the both ends of first horizontal pole (4) all overlap and are equipped with first heavy body cotton (3), a top side of movable rod (5) runs through there is second horizontal pole (7), just the both ends cover of second horizontal pole (7) is equipped with second heavy body cotton (6), a side of movable rod (5) is connected with second arc supporting beam (12) through adjustment mechanism rotation, one end sliding connection of second arc supporting beam (12) is at first arc supporting beam (8), the other end rigid coupling of first arc supporting beam (8) is at the outer wall middle part of second bracing piece (13), a side of second arc supporting beam (12) is equipped with the spacing hole of a plurality of second, be equipped with fixed subassembly (10) on one side of first arc supporting beam (8), the top surface of first arc supporting beam (8) is equipped with second service creeper (11), just first arc wall has been seted up to a side of second service creeper (11), sliding connection has first service creeper (9) in the first arc wall, the other end of first service creeper (9) sets up on the top surface of support frame, the bottom surface rigid coupling of support frame is on the top surface of second arc supporting beam (12).

2. The sit-up board for military training and assessment according to claim 1, wherein: adjustment mechanism includes U template, stop gear (15), connecting axle (16), the first in command, spacing subassembly, a side rigid coupling of movable rod (5) has the U template, a side of U template rotates and is connected with connecting axle (16), the other side of U template is run through in the other end activity of connecting axle (16), the rigid coupling has stop gear (15) on the other end outer wall of connecting axle (16), just tooth slope on stop gear (15) sets up, the one end tip rigid coupling of connecting axle (16) has the first in command, the rigid coupling has second arc supporting beam (12) on the outer wall of connecting axle (16) in the U template, a side of movable rod (5) is equipped with spacing subassembly, gag lever post (19) and stop gear (15) meshing in the spacing subassembly.

3. The sit-up board for military training and assessment according to claim 2, wherein: the limiting component comprises a rectangular block (14), a first movable rod (17), a first spring (18), a limiting rod (19), a second spring (20), a first movable plate (21), a fixed rod (22) and a reset piece, wherein the rectangular block (14) is fixedly connected to one side face of the movable rod (5), a first rectangular groove is formed in one side face of the rectangular block (14), the first movable rod (17) penetrates through one side face of the first rectangular groove in a movable mode, a second handle is fixedly connected to one end portion of the first movable rod (17), the first movable plate (21) is fixedly connected to the other end portion of the first movable rod (17), the first movable plate (21) is connected to the first rectangular groove in a sliding mode, the limiting rod (19) is fixedly connected to one side face of the first movable plate (21), one end of the bottom face of the limiting rod (19) is an inclined face, the first spring (18) is arranged on the outer wall of the first movable rod (17), just the one end rigid coupling of first spring (18) is on a side of first rectangular channel, the other end rigid coupling of first spring (18) is on a side of first fly leaf (21), the second rectangular channel has been seted up at the top surface middle part of first fly leaf (21), the bottom rigid coupling of second rectangular channel has second spring (20), the top rigid coupling of second spring (20) has dead lever (22), dead lever (22) sliding connection is in the second rectangular channel, the top surface middle part rigid coupling of rectangular block (14) has the bar piece, be equipped with the piece that resets in the bar piece.

4. The sit-up board for military training and assessment according to claim 3, wherein: the piece that resets includes second fly leaf (23), third spring (24), second movable rod (25), be equipped with the third rectangular channel in the bar piece, just third rectangular channel and first rectangular channel intercommunication, the top activity of third rectangular channel has run through second movable rod (25), the one end of second movable rod (25) slides and has run through second fly leaf (23), just second fly leaf (23) sliding connection is in the third rectangular channel, be equipped with third spring (24) on the outer wall of second movable rod (25), the one end rigid coupling of third spring (24) is at the top surface of third rectangular channel, the other end rigid coupling of third spring (24) is on the side of second fly leaf (23).

5. The sit-up board for military training and assessment according to claim 1, wherein: fixed subassembly (10) includes square piece, limiting plate, third movable rod, fourth spring, the fourth rectangular channel has been seted up to a side of square piece, the third movable rod has been run through in a side activity of fourth rectangular channel, the one end tip rigid coupling of third movable rod has the third handle, the other end activity of third movable rod runs through first arc supporting beam (8), just the cooperation of third movable rod and the spacing hole of second, sliding connection has the limiting plate on the other end outer wall of third movable rod, just limiting plate sliding connection is in the fourth rectangular channel, be equipped with the fourth spring on the outer wall of third movable rod, the one end rigid coupling of fourth spring is on the side of limiting plate, the other end rigid coupling of fourth spring is on the top surface of fourth rectangular channel.

6. The sit-up board for military training and assessment according to claim 1, wherein: the two ends of the first supporting rod (1) and the second supporting rod (13) are respectively provided with an anti-slip pad, and the anti-slip pads are all made of rubber.