CN212234451U

CN212234451U - Anti-cheating sitting body anteflexion tester

Info

Publication number: CN212234451U
Application number: CN202020466672.2U
Authority: CN
Inventors: 常妙
Original assignee: Sichuan Aviation Vocational College Sichuan Space Advanced Technical School
Current assignee: Sichuan Aviation Vocational College Sichuan Space Advanced Technical School
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-12-29
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses an anti-cheating seat forward bending tester, which relates to the technical field of sports equipment, and comprises a bottom plate, a vertical plate, a sliding block and a sliding rod with scales, wherein the bottom plate is provided with a knee bending prevention device which can effectively prevent the knee of a testee from bending by utilizing an L-shaped limiting plate to limit the activity of the knee of the testee and lock the position of the L-shaped limiting plate, and then the seat forward bending test is carried out, so that the authenticity and the accuracy of a test result are enhanced; after the test is finished, the handle is pulled outwards, the handle drives the connecting rod and the lock tongue outwards, the lock tongue compresses the spring, the lock tongue moves back into the chute, and the lock core is pulled out to complete unlocking; screwing the bolt out of the threaded hole, and moving the moving block again so as to carry out next test; simple structure, convenient use and can also be used as an exercise instrument for forward bending of the sitting body.

Description

Anti-cheating sitting body anteflexion tester

Technical Field

The utility model relates to the technical field of sports equipment, in particular to prevent seat body anteflexion tester of practising fraud.

Background

The sitting body forward bending test is not only one of physical test items of middle school students, but also physical test items of college students and middle school students, and the main purpose of the sitting body forward bending test is to measure the possible activity amplitude of joints such as trunk, waist and hip in a static state, and mainly reflect the extensibility and elasticity of joints, ligaments and muscles of the parts and the development level of physical flexibility.

The existing sitting body forward bending tester has a simple structure and generally comprises a bottom plate, a vertical plate, a sliding block and a sliding rod with a scale, a testee sits on the bottom plate, two legs are straightened and cannot be bent, heels are closed, toes are separated by about 10-15cm, the testee steps on the vertical plate, then two hands are closed, two arms and hands are straightened, the upper body is gradually bent forward, and fingertips of the two hands slightly push the sliding block on the sliding rod to slide forward until the sliding block cannot continue to extend forward. The tester has no cheating prevention function, and some testees can unconsciously or unconsciously bend the knees to enable the two arms and the hands to extend forwards so as to obtain better test results, but the test results are unreal and inaccurate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide an prevent that cheating seat body anteflexion tester, solve some testees among the prior art and have consciousness or unconscious crooked knee so that two arms and hand more protraction to obtain the problem of better test score.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides an prevent that cheating sits body anteflexion tester, includes bottom plate, vertical plate, slider and is equipped with the slide bar of scale, be provided with on the bottom plate and prevent the knee device of buckling, it includes two L shape limiting plates, two to prevent the knee device of buckling L shape limiting plate symmetry sets up and connects through locking device, two the space that forms between the L shape limiting plate is used for holding the testee knee and prevents its bending, two the lower extreme of L shape limiting plate articulates respectively has the movable block, the both sides of bottom plate are equipped with the slide that is used for holding movable block horizontal slip respectively, be equipped with detachable positioner between movable block and the slide.

The utility model discloses a theory of operation: the tested person sits on the bottom plate, the two legs stretch, the heels are closed, the toes are separated by about 10-15cm and step on the vertical plate, in order to prevent the knees from being bent in the test process, the two L-shaped limiting plates are pushed to be right above the knees of the tested person (the movable block slides in the slide way in the process), then the movable block is positioned through the positioning device and prevented from sliding again, the position of the L-shaped limiting plate can be adjusted according to the body structures of different tested persons by the aid of the positioning device, the L-shaped limiting plate is made to correspond to the positions of the knees of the tested person exactly, the two L-shaped limiting plates are rotationally moved to be above the knees, the two L-shaped limiting plates are connected and locked through the locking device, the bending of the knees of the tested person can be effectively prevented by performing the seat body forward bending test at the moment.

Further, locking device includes lock tube and lock core, the lock core end is equipped with the rake, set up on the lock tube with the rake assorted chute of lock core, the straight flute has been seted up to chute one side, be provided with the connecting rod in the straight flute, connecting rod one end sets up the spring bolt, and the other end extends the lock tube and sets up the handle, connecting rod and lock tube sliding connection, be equipped with the spring between lock tube and the spring bolt, the spring bolt stretches into in the chute at spring natural state time delay, be equipped with the recess that matches with the spring bolt on the lock core.

Furthermore, the lock sleeve is hinged with one L-shaped limiting plate, and the lock core is hinged with the other L-shaped limiting plate.

Furthermore, the tail end of the lock tongue is provided with an inclined part, and the inclination angle of the inclined part of the lock tongue, the inclination angle of the inclined part of the lock cylinder and the inclination angle of the lock sleeve chute are all set to be rounded angles.

Furthermore, the positioning device is a bolt, a plurality of threaded holes are formed in the upper surface or the side surface of the slide way, the threaded holes are in threaded connection with the bolt, and the bolt is screwed into the threaded holes and is in abutting connection with the moving block.

Furthermore, two corners of the L-shaped limiting plates are provided with arc-shaped sponge cushions.

Furthermore, the slide bar is arranged above the vertical plate, the slide block is connected with the slide bar in a sliding manner, and a support piece is arranged on one side of the vertical plate, which is far away from the knee bending prevention device.

The utility model has the advantages that:

the utility model can effectively prevent the knee of the testee from bending by arranging the knee bending prevention device to utilize the L-shaped limiting plate to carry out the activity limitation on the knee position of the testee and lock the position of the L-shaped limiting plate, and then the seat body forward bending test is carried out, thereby enhancing the authenticity and the accuracy of the test result; after the test is finished, the handle is pulled outwards, the handle drives the connecting rod and the lock tongue outwards, the lock tongue compresses the spring, the lock tongue moves back into the chute, and the lock core is pulled out to complete unlocking; screwing the bolt out of the threaded hole, and moving the moving block again so as to carry out next test; simple structure, convenient use and can also be used as an exercise instrument for forward bending of the sitting body.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the knee bending prevention device of the present invention;

fig. 3 is a schematic structural view of the locking device of the present invention;

fig. 4 is a schematic structural view of the lock sleeve of the present invention;

fig. 5 is a schematic structural diagram of the lock cylinder of the present invention;

in the figure, 1-bottom plate, 2-vertical plate, 3-sliding block, 4-sliding rod, 5-knee bending prevention device, 6-L-shaped limit plate, 7-locking device, 8-slideway, 9-positioning device, 10-supporting piece, 11-arc sponge cushion, 12-bolt, 13-threaded hole, 14-moving block, 15-handle, 16-lock sleeve, 17-lock core, 18-lock tongue, 19-inclined groove, 20-straight groove, 21-inclined part, 22-connecting rod, 23-spring and 24-groove.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

example 1

An anti-cheating seat forward bending tester comprises a bottom plate 1, a vertical plate 2, a sliding block 3 and a sliding rod 4 with scales, wherein the sliding rod 4 is arranged above the vertical plate 2, the sliding block 3 is in sliding connection with the sliding rod 4, a supporting piece 10 is arranged on one side of the vertical plate 2, which is far away from a knee bending prevention device 5, the supporting piece 10 plays a supporting role for the vertical plate 2 and can be a box body or an inclined plate, the knee bending prevention device 5 is arranged on the bottom plate 1, the knee bending prevention device 5 comprises two L-shaped limiting plates 6, the two L-shaped limiting plates 6 are symmetrically arranged and connected through a locking device 7, a space formed between the two L-shaped limiting plates 6 is used for accommodating knees of a testee and preventing the knees from bending, arc sponge cushions 11 are arranged on the two L-shaped limiting plates 6 to prevent the knees of the testee from being damaged or colliding, and moving blocks 14 are respectively hinged to the lower ends of the two, the two sides of the bottom plate 1 are respectively provided with a slideway 8 for accommodating the moving block 14 to horizontally slide, the slideway 8 and the bottom plate 1 are integrally formed, and a detachable positioning device 9 is arranged between the moving block 14 and the slideway 8.

Preferably, the locking device 7 comprises a lock sleeve 16 and a lock core 17, the tail end of the lock core 17 is provided with an inclined part 21, the lock sleeve 16 is provided with an inclined groove 19 matched with the inclined part 21 of the lock core 17, one side of the inclined groove 19 is provided with a straight groove 20, a connecting rod 22 is arranged in the straight groove 20, one end of the connecting rod 22 is provided with a bolt 18, the other end of the connecting rod 22 extends out of the lock sleeve 16 and is provided with a handle 15, the connecting rod 22 is in sliding connection with the lock sleeve 16, a spring 23 is arranged between the lock sleeve 16 and the bolt 18, the bolt 18 extends into the inclined groove 19 when the spring 23 is in a.

Preferably, the lock sleeve 16 is hinged with one L-shaped limit plate 6, and the lock core 17 is hinged with the other L-shaped limit plate 6; the tail end of the bolt 18 is provided with an inclined part 21, the inclination angle of the inclined part 21 of the bolt 18, the inclination angle of the inclined part 21 of the lock cylinder 17 and the inclination angle of the inclined groove 19 of the lock sleeve 16 are set to be rounded corners, the locking and unlocking actions can be smoother due to the arrangement of the rounded corners, the abrasion of the bolt 18 and the lock cylinder 17 caused by frequent operation is reduced, and the service life of equipment is prolonged.

Preferably, the positioning device 9 is a bolt 12, a plurality of threaded holes 13 are formed in the upper surface or the side surface of the slideway 8, the threaded holes 13 are in threaded connection with the bolt 12, and the bolt 12 is screwed into the threaded holes 13 and is in interference connection with the moving block 14.

Preferably, each L-shaped limiting plate 6 is 18-23 cm in height and 15-20 cm in length so as to meet the use requirements of most testees.

The working principle of the embodiment is as follows: the testee sits on the bottom plate 1, two legs stretch, heels are closed, toes are separated by about 10-15cm and step on the vertical plate 2, in order to prevent knees from bending in the test process, the two L-shaped limiting plates 6 are pushed to be right above knees of the testee (in the process, the movable block 14 slides in the slide way 8), then bolts 12 are screwed into corresponding threaded holes 13 formed in the side surface of the slide way 8 to be abutted and connected with the movable block 14, and the sliding is prevented, the arrangement can adjust the positions of the L-shaped limiting plates 6 according to the body structures of different testees, so that the L-shaped limiting plates are exactly corresponding to the knees of the testee, then the two L-shaped limiting plates 6 are rotated and moved to be above the knees, the two L-shaped limiting plates 6 are connected and locked through the locking device 7, specifically, the lock cylinder 17 is inserted into the chute 19 of the lock sleeve 16, in the insertion process, the lock cylinder 17 is abutted with the lock tongue 18, the lock tongue, meanwhile, the bolt 18 drives the connecting rod 22 and the handle 15 to retreat, the lock cylinder 17 can continue to move forwards until the bolt 18 is clamped into the groove 24 on the lock cylinder 17 to achieve a locking state, and at the moment, the bending of the knee of the testee can be effectively prevented by performing the seat body forward bending test, so that the authenticity and the accuracy of the test result are enhanced.

After the test is finished, the handle 15 is pulled outwards, the handle 15 drives the connecting rod 22 and the bolt 18 outwards, the bolt 18 compresses the spring 23, the bolt 18 retreats into the inclined groove 19, and the unlocking can be finished by withdrawing the lock cylinder 17; the bolts 12 are screwed out of the threaded holes 13 and the moving block 14 can be moved again for the next test.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides an anti-cheating seat body anteflexion tester, includes bottom plate (1), vertical plate (2), slider (3) and slide bar (4) that are equipped with the scale, its characterized in that: be provided with on bottom plate (1) and prevent knee device (5) of buckling, prevent knee device (5) of buckling includes two L shape limiting plate (6), two L shape limiting plate (6) symmetry sets up and connects through locking device (7), two the space that forms between L shape limiting plate (6) is used for holding the testee's knee and prevents its bending, two the lower extreme of L shape limiting plate (6) articulates respectively has movable block (14), the both sides of bottom plate (1) are equipped with slide (8) that are used for holding movable block (14) horizontal slip respectively, be equipped with detachable positioner (9) between movable block (14) and slide (8).

2. The anti-cheating sitting body forward bending tester according to claim 1, wherein: locking device (7) are including lock tube (16) and lock core (17), lock core (17) end is equipped with rake (21), set up on lock tube (16) with rake (21) assorted chute (19) of lock core (17), straight flute (20) have been seted up to chute (19) one side, be provided with connecting rod (22) in straight flute (20), connecting rod (22) one end sets up spring bolt (18), and the other end extends lock tube (16) and sets up handle (15), connecting rod (22) and lock tube (16) sliding connection, be equipped with spring (23) between lock tube (16) and spring bolt (18), spring bolt (18) stretch into in chute (19) in spring (23) natural state time delay, be equipped with recess (24) that match with spring bolt (18) on lock core (17).

3. The anti-cheating sitting body forward bending tester according to claim 2, wherein: the lock sleeve (16) is hinged with one L-shaped limiting plate (6), and the lock core (17) is hinged with the other L-shaped limiting plate (6).

4. The anti-cheating sitting body forward bending tester according to claim 3, wherein: the lock bolt is characterized in that an inclined part (21) is arranged at the tail end of the lock bolt (18), and the inclination angle of the inclined part (21) of the lock bolt (18), the inclination angle of the inclined part (21) of the lock core (17) and the inclination angle of the inclined groove (19) of the lock sleeve (16) are all set to be rounded.

5. The anti-cheating sitting body forward bending tester according to claim 1, wherein: the positioning device (9) is a bolt (12), a plurality of threaded holes (13) are formed in the upper surface or the side surface of the slide way (8), the threaded holes (13) are in threaded connection with the bolt (12), and the bolt (12) is used for being screwed into the threaded holes (13) and is in abutting connection with the moving block (14).

6. The anti-cheating sitting body forward bending tester according to claim 1, wherein: the corners of the two L-shaped limiting plates (6) are provided with arc-shaped sponge cushions (11).

7. The anti-cheating sitting body forward bending tester according to claim 1, wherein: the sliding rod (4) is arranged above the vertical plate (2), the sliding block (3) is in sliding connection with the sliding rod (4), and a supporting piece (10) is arranged on one side, far away from the knee bending prevention device (5), of the vertical plate (2).