CN215387340U

CN215387340U - Sit-up board for military physical training and examination

Info

Publication number: CN215387340U
Application number: CN202121037062.1U
Authority: CN
Inventors: 张小强
Original assignee: Zhejiang Pengjian Sports Equipment Co ltd
Current assignee: Zhejiang Pengjian Sports Equipment Co ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2022-01-04
Anticipated expiration: 2031-05-14

Abstract

The utility model discloses a sit-up board for military physical training and examination, which comprises a supporting board, wherein a rotating shaft is arranged on one side of the bottom of the supporting board, an L-shaped supporting leg is sleeved on the outer side of the rotating shaft, a hinged frame is arranged on one side of the bottom of the supporting board, which is far away from the rotating shaft, a sleeve is hinged inside the hinged frame, a threaded rod is sleeved inside the sleeve, an adjusting frame is sleeved on the bottom of the outer side of the threaded rod, the bottom of the adjusting frame is hinged with the bottom of one side of the L-shaped supporting leg, and a second bevel gear is arranged at the bottom of the threaded rod; according to the utility model, through the mutual matching of the first sliding chute, the sliding block, the arc-shaped lying plate, the upper sleeve, the two-way threaded rod, the lower sleeve and the second sliding chute, the radian of the arc-shaped lying plate can be adjusted so as to achieve the radian of the back of a sporter, so that the sporter can feel more comfortable in sit-up and can achieve the body-building effect of the sporter.

Description

Sit-up board for military physical training and examination

Technical Field

The utility model relates to the technical field of sit-up boards, in particular to a sit-up board for military physical training and examination.

Background

Military training is the activity of military theory education and combat skill coaching, and is generally divided into army training, college training and preparatory service training, also called back-up service training, wherein the military training plays an important role in national armed force construction and combat readiness work, is a main task of the army at ordinary times, is an important aspect of combat readiness, and is classified as one content of strategic research by many countries, and the military training is closely related to national political economy, military thinking, military technology, military tradition, experience, combat mission and the like;

but there is certain not enough when current sit up board uses:

1. the back plates of the existing sit-up plate support are all in fixed arc shapes, but the arc shapes of the backs of all people are different, so that the radian of the existing sit-up plate is not suitable for any person, and on the contrary, the existing sit-up plate can not be very suitable for some people and can not be used for doing sit-up normally;

2. the pressure shaft of the existing sit-up plate is relatively fixed, and the length of the legs of people with different heights is different, so that each person cannot sit up well or does not have standard actions, the sit-up effect cannot be achieved, and the injury of a sporter can be caused due to incorrect posture;

3. the existing sit-up board can be adjusted in angle, but the adjustment is carried out in a lattice-by-lattice manner, and each groove is designed to be large, so that a sporter cannot adjust the angle well, and the problem that the angle is adjusted too large or too small can occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sit-up board for military physical training and examination, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a sit-up board for military physical training and examination comprises a supporting board, wherein a rotating shaft is arranged on one side of the bottom of the supporting board, an L-shaped supporting leg is sleeved on the outer side of the rotating shaft, an articulated frame is arranged on one side of the bottom of the supporting board, which is far away from the rotating shaft, a sleeve is articulated inside the articulated frame, a threaded rod is sleeved inside the sleeve, an adjusting frame is sleeved on the bottom of the outer side of the threaded rod, the bottom of the adjusting frame is articulated with the bottom of one side of the L-shaped supporting leg, a second bevel gear is arranged at the bottom of the threaded rod, a rotating shaft is arranged at the middle position of one end of the front side of the adjusting frame, a first bevel gear is arranged at one end of the rotating shaft, which is close to the second bevel gear, a supporting rod is arranged on one side of the top of the supporting board, an upper compression roller is arranged at the top of the supporting board, a first adjusting rod is arranged at one side of the bottom of the supporting board, which is close to the supporting rod, the outer side of the first adjusting rod is sleeved with an adjusting bin, one side of the first adjusting rod is uniformly provided with slots, two ends of the adjusting bin are provided with lower compression rollers, one side inside the adjusting bin is provided with a second adjusting rod, one side of the second adjusting rod, which is far away from the slots, extends out of the adjusting bin, the middle position outside the second adjusting rod is provided with a blocking block, one side outside the second adjusting rod, which is close to the blocking block, is sleeved with a spring, the middle position at the top of the supporting plate is provided with two groups of second chutes, the insides of the two groups of second chutes are provided with lower sleeves in a sliding manner, the insides of the two groups of lower sleeves are sleeved with two-way threaded rods, the tops of the two groups of two-way threaded rods are sleeved with upper sleeves, the tops of the two groups of upper sleeves are provided with arc-shaped creepers, one side of the arc-shaped creepers, which is close to the supporting rod, is hinged with the supporting plate, the bottom that the bracing piece one side was kept away from to the arc service creeper articulates there is the slider, one side that the bracing piece was kept away from to the backup pad is provided with first spout.

Preferably, a pillow is arranged on one side, away from the supporting rod, of the top of the supporting plate, and a spongy cushion is arranged on the pillow.

Preferably, the top of arc service creeper is provided with the sweat-absorbing cotton, and the sweat-absorbing cotton is connected with the top of arc service creeper.

Preferably, the cross sections of the sliding block and the first sliding groove are T-shaped, and the sliding block and the first sliding groove are matched with each other.

Preferably, one side of the outer side of the rotating shaft, which is far away from the adjusting frame, is provided with a handle, and the handle is provided with a rubber pad.

Preferably, a bearing is arranged at the joint of the rotating shaft and the threaded rod with the adjusting frame, and the outer side of the bearing is connected with the adjusting frame.

Compared with the prior art, the utility model has the beneficial effects that: the sit-up board for military training and examination.

1. The radian of the arc-shaped lying plate can be adjusted through the mutual matching of the first sliding groove, the sliding block, the arc-shaped lying plate, the upper sleeve, the two-way threaded rod, the lower sleeve and the second sliding groove so as to achieve the radian of the back of a sporter, so that the sporter can feel more comfortable during sit-up and can achieve the body-building effect of the sporter;

2. the second adjusting rod, the slot, the lower pressing roller, the adjusting bin, the adjusting rod, the spring and the blocking block are matched with each other, so that sporters with different heights can be dealt with, the sporters can better do sit-up, the problem that the movement is incorrect due to height is avoided, damage is caused, and the movement efficiency of the sporters can be improved by adjusting the height;

3. through mutually supporting between L type supporting leg, axis of rotation, alignment jig, threaded rod, sleeve, articulated frame, pivot, first bevel gear and the second bevel gear, the angle of adjustment sit up board that can be arbitrary through the setting of threaded rod, can adjust in succession, has avoided because the interval in groove and groove is too big, leads to the angle regulation's that can not be fine problem.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a side view of a press roll of the present invention;

FIG. 3 is an enlarged view of the structure at A of FIG. 1 according to the present invention;

fig. 4 is a side view of the angular adjustment of the present invention.

In the figure: 1. a support plate; 2. a first adjusting lever; 3. a slot; 4. an L-shaped support leg; 5. a rotating shaft; 6. an adjusting frame; 7. a threaded rod; 8. a sleeve; 9. a hinged frame; 10. a first chute; 11. a slider; 12. an arc-shaped lying plate; 13. an upper sleeve; 14. a bidirectional threaded rod; 15. a lower sleeve; 16. a second chute; 17. an upper compression roller; 18. a lower pressing roller; 19. a regulating bin; 20. a support bar; 21. a second adjusting lever; 22. a spring; 23. a blocking block; 24. a rotating shaft; 25. a first bevel gear; 26. a second bevel gear.

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.

Referring to fig. 1-4, the present invention provides an embodiment: a sit-up board for military physical training and examination comprises a supporting board 1, wherein a rotating shaft 5 is arranged on one side of the bottom of the supporting board 1, an L-shaped supporting leg 4 is sleeved on the outer side of the rotating shaft 5, an articulated frame 9 is arranged on one side of the bottom of the supporting board 1, which is far away from the rotating shaft 5, a sleeve 8 is articulated inside the articulated frame 9, a threaded rod 7 is sleeved inside the sleeve 8, an adjusting frame 6 is sleeved on the bottom of the outer side of the threaded rod 7, the bottom of the adjusting frame 6 is articulated with the bottom of one side of the L-shaped supporting leg 4, a second bevel gear 26 is arranged at the bottom of the threaded rod 7, the integral angle can be adjusted, a rotating shaft 24 is arranged at the middle position of one end of the front side of the adjusting frame 6, a first bevel gear 25 is arranged at one end of the rotating shaft 24, which is close to the second bevel gear 26, a supporting rod 20 is arranged on one side of the top of the supporting board 1, an upper compression roller 17 is arranged at the top of the supporting board 1, a first adjusting rod 2 is arranged on one side of the bottom of the supporting board, which is close to the supporting rod 20, an adjusting bin 19 is sleeved on the outer side of a first adjusting rod 2, slots 3 are uniformly arranged on one side of the first adjusting rod 2, lower compression rollers 18 are arranged at two ends of the adjusting bin 19, the height of the lower compression rollers 18 can be adjusted, a second adjusting rod 21 is arranged on one side inside the adjusting bin 19, one side, far away from the slots 3, of the second adjusting rod 21 extends into the adjusting bin 19, a blocking block 23 is arranged at the middle position outside the second adjusting rod 21, a spring 22 is sleeved on one side, close to the blocking block 23, outside the second adjusting rod 21, two groups of second sliding chutes 16 are arranged at the middle position of the top of a supporting plate 1, lower sleeves 15 are arranged inside the two groups of second sliding chutes 16 in a sliding mode, two-way threaded rods 14 are sleeved inside the two groups of lower sleeves 15, upper sleeves 13 are sleeved on the top outside the two groups of two-way threaded rods 14, arc lying plates 12 are arranged on the tops of the two groups of upper sleeves 13, and the radian of the lying plates 12 can be adjusted, one side that arc service creeper 12 is close to bracing piece 20 is articulated with backup pad 1, and the bottom that arc service creeper 12 kept away from bracing piece 20 one side articulates there is slider 11, and one side that bracing piece 20 was kept away from to backup pad 1 is provided with first spout 10.

In this implementation, one side that bracing piece 20 was kept away from at 1 top of backup pad is provided with the bolster, and be provided with the foam-rubber cushion on the bolster, can protect training personnel's head, the top of arc service creeper 12 is provided with the sweat-absorbing cotton, and the sweat-absorbing cotton is connected with the top of arc service creeper 12, can absorb the sweat at training personnel back when the training, slider 11 and the transversal T type of personally submitting of first spout 10, slider 11 and the mutual adaptation of first spout 10, can be convenient for slide when adjusting the radian, one side that adjust the frame 6 was kept away from in the pivot 24 outside is provided with the handle, and be provided with the rubber pad on hand, increase frictional force person's of being convenient for adjustment, pivot 24 and threaded rod 7 and adjust frame 6 junction are provided with the bearing, and the outside and the adjust frame 6 of bearing are connected, be convenient for the rotation of pivot 24 and threaded rod 7.

The working principle is as follows: when the adjustable arc lying plate is used, the adjusting rod 21 is firstly pulled out, the blocking block 23 is arranged in the middle of the adjusting rod 21, so that the adjusting rod cannot be completely pulled out under the blocking of the blocking block 23, when the adjusting rod 21 is far away from the slot 3, the adjusting bin 19 is moved to a proper position, the lower pressing roller 18 is driven to be placed at a proper position, the adjusting rod 21 is then loosened, the adjusting rod 21 is driven to reset to be clamped with the slot 3 under the action of the elastic force of the spring 22, then the two groups of bidirectional threaded rods 14 are rotated, the upper sleeve 13 is driven to be pushed out by the threads on the surfaces of the bidirectional threaded rods 14, so that the radian of the arc lying plate 12 is changed, when the radian of the arc lying plate 12 is changed, the arc lying plate 12 drives the sliding block 11 to slide in the first sliding slot 10, then the rotating shaft 24 is used for driving the first bevel gear 25 to rotate, and the second bevel gear 26 is driven to rotate by the first bevel gear 25, the threaded rod 7 is driven to rotate through the second bevel gear 26, the sleeve 8 contracts due to the rotation of the threaded rod 7, one side of the supporting plate 1 can be pulled to move due to the contraction of the threaded rod 7 and the sleeve 8, and the angle can be adjusted due to the fact that the rotating shaft 5 is hinged to the side, away from the hinge frame 9, of the supporting plate 1.

It will be evident to those skilled in the art that the utility model 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 utility model 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.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a military physical training examination is with sit up board, includes backup pad (1), its characterized in that: one side of the bottom of the supporting plate (1) is provided with a rotating shaft (5), the outer side of the rotating shaft (5) is sleeved with an L-shaped supporting leg (4), one side of the bottom of the supporting plate (1), which is far away from the rotating shaft (5), is provided with an articulated frame (9), the inside of the articulated frame (9) is articulated with a sleeve (8), the inside of the sleeve (8) is sleeved with a threaded rod (7), the bottom of the outer side of the threaded rod (7) is sleeved with an adjusting frame (6), the bottom of the adjusting frame (6) is articulated with the bottom of one side of the L-shaped supporting leg (4), the bottom of the threaded rod (7) is provided with a second bevel gear (26), the middle position of the front end of the adjusting frame (6) is provided with a rotating shaft (24), one end of the rotating shaft (24), which is close to the second bevel gear (26), is provided with a first bevel gear (25), one side of the top of the supporting plate (1) is provided with a supporting rod (20), the top of the supporting rod (20) is provided with an upper compression roller (17), one side, close to the supporting rod (20), of the bottom of the supporting plate (1) is provided with a first adjusting rod (2), the outer side of the first adjusting rod (2) is sleeved with an adjusting bin (19), one side of the first adjusting rod (2) is evenly provided with a slot (3), two ends of the adjusting bin (19) are provided with lower compression rollers (18), one side of the inner part of the adjusting bin (19) is provided with a second adjusting rod (21), one side, far away from the slot (3), of the second adjusting rod (21) extends out of the adjusting bin (19), the middle position of the outer side of the second adjusting rod (21) is provided with a blocking block (23), one side, close to the blocking block (23), of the outer side of the second adjusting rod (21) is sleeved with a spring (22), and the middle position of the top of the supporting plate (1) is provided with two groups of second sliding grooves (16), two sets of the inside slip of second spout (16) is provided with down sleeve (15), and is two sets of the inside cover of lower sleeve (15) is equipped with two-way threaded rod (14), and is two sets of the top cover in two-way threaded rod (14) outside is equipped with sleeve (13), and is two sets of it is provided with arc service creeper (12) to go up sleeve (13) top, one side that arc service creeper (12) are close to bracing piece (20) is articulated with backup pad (1), the bottom that bracing piece (20) one side was kept away from in arc service creeper (12) articulates there is slider (11), one side that bracing piece (20) was kept away from in backup pad (1) is provided with first spout (10).

2. The sit-up board for military physical training and assessment according to claim 1, wherein: a pillow is arranged on one side, far away from the support rod (20), of the top of the support plate (1), and a spongy cushion is arranged on the pillow.

3. The sit-up board for military physical training and assessment according to claim 1, wherein: the top of the arc-shaped lying plate (12) is provided with sweat-absorbent cotton, and the sweat-absorbent cotton is connected with the top of the arc-shaped lying plate (12).

4. The sit-up board for military physical training and assessment according to claim 1, wherein: the cross sections of the sliding block (11) and the first sliding groove (10) are T-shaped, and the sliding block (11) and the first sliding groove (10) are mutually matched.

5. The sit-up board for military physical training and assessment according to claim 1, wherein: and a handle is arranged on one side of the outer side of the rotating shaft (24) far away from the adjusting frame (6), and a rubber pad is arranged on the handle.

6. The sit-up board for military physical training and assessment according to claim 1, wherein: and a bearing is arranged at the joint of the rotating shaft (24) and the threaded rod (7) and the adjusting frame (6), and the outer side of the bearing is connected with the adjusting frame (6).