CN210375658U

CN210375658U - Nut detection protection device

Info

Publication number: CN210375658U
Application number: CN201921435832.0U
Authority: CN
Inventors: 王松松
Original assignee: Handan Xiaojun Fastener Manufacturing Co Ltd
Current assignee: Handan Xiaojun Fastener Manufacturing Co Ltd
Priority date: 2019-09-01
Filing date: 2019-09-01
Publication date: 2020-04-21
Anticipated expiration: 2029-09-01

Abstract

The utility model discloses a nut detects protector, including work platform, the work platform upper surface is equipped with tensile detection mechanism, tensile detection mechanism side surface is equipped with slip protection machanism. The beneficial effects of the utility model are that, in the twinkling of an eye that the nut drops, can effectively prevent splashing of nut, realize protection staff's effect, the device only just can accomplish safeguard measure through manual operation, has realized the purpose of zero energy consumption.

Description

Nut detection protection device

Technical Field

The utility model relates to a nut detects protection technical field, and more specifically says, relates to a nut detects protector.

Background

The nut is a part formed by the bolt, the nut is connected with the screw rod through threads, the fastening purpose is realized through screwing, and the nut is meshed with the screw rod through the threads, so the fastening force of the bolt is directly influenced by the quality of the threads of the nut, and the quality of the threads of the nut is detected through a tension tester in general;

after fixing nut and pull rod, traditional tensile detection device will be direct carries out the tensile test to the nut, exerts the pulling force through slow mouth nut and pull rod, and final nut's screw takes place to deform, finally drops, can produce great impact force in the twinkling of an eye that drops, can make the nut that drops splash, causes the potential safety hazard to the human body, and traditional tensile detection device is not equipped with protector, can not effectively protect the potential safety hazard that the fracture impact force brought.

SUMMERY OF THE UTILITY MODEL

To above defect, the utility model provides a nut detects protector to the problem of solution.

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

a nut detection and protection device comprises a working platform, wherein a stretching detection mechanism is arranged on the upper surface of the working platform, and a sliding protection mechanism is arranged on the side surface of the stretching detection mechanism;

the stretching detection mechanism comprises hydraulic cylinders at two ends of the upper surface of a working platform, the lower ends of the hydraulic cylinders are fixedly connected with the working platform, telescopic ends of the hydraulic cylinders are provided with bearing rods, the lower surfaces at two ends of the bearing rods are fixedly connected with the hydraulic cylinders, the centers of the lower surfaces of the bearing rods are provided with first hollow cylinders, the lower surfaces of the first hollow cylinders are provided with first U-shaped openings, one side surfaces of the first hollow cylinders are provided with first rectangular openings, the positions of the first rectangular openings correspond to the positions of the first U-shaped openings, the centers of the upper surfaces of the working platform are provided with second hollow cylinders, the upper surfaces of the second hollow cylinders are provided with second U-shaped openings;

the sliding protection mechanism comprises L-shaped sliding rails on two sides of the outer surface of a hollow cylinder, rectangular grooves are formed in the inner side surfaces of the L-shaped sliding rails, pulleys are mounted on the opposite side surfaces of the rectangular grooves, a supporting shaft in the center of each pulley is connected with the rectangular grooves in an inserted mode, an arc-shaped sliding plate is mounted on one side of each L-shaped sliding rail, two ends of each arc-shaped sliding plate are connected with the L-shaped sliding rails in a sliding mode, and the side surfaces of the arc; the rack is installed to L shape slide rail one side, and the side surface of arc sliding plate is opened there is the through-hole, and the fixed plate is installed to the through-hole below, and the fixed plate is equipped with two, and the side surface of fixed plate is opened there is the round hole, and round hole internal surface cartridge has the round pin axle, and the surface mounting of round pin axle surface has Z shape dwang, and through-hole and rack interlock are passed through to Z shape dwang upper end, and extension spring is installed to the Z shape dwang other end, extension spring one end and Z.

Further, a moving handle is installed on the side surface of the arc-shaped sliding plate.

Furthermore, a circular check ring is arranged in the first U-shaped opening, a stretching rod is inserted into the inner ring of the circular check ring, the lower end of the stretching rod corresponds to the second U-shaped opening, a nut is mounted at the upper end of the stretching rod, and the nut is connected with the stretching rod through threads.

Furthermore, a reinforcing rib plate is arranged on the upper surface of the bearing rod.

The utility model has the advantages that: in the moment that the nut drops, can effectively prevent splashing of nut, realize protection staff's effect, the device just can accomplish safeguard measure through manual operation, has realized the purpose of zero energy consumption.

Drawings

Fig. 1 is a schematic structural view of a nut detection and protection device according to the present invention;

FIG. 2 is a schematic top view of the slide guard mechanism;

FIG. 3 is a cutaway schematic view of the slide guard mechanism;

FIG. 4 is a schematic view of a stretch detection mechanism;

FIG. 5 is a partial schematic view of the slide guard mechanism;

in the figure, 1, a working platform; 2. a hydraulic cylinder; 3. a load-bearing bar; 4. a first hollow cylinder; 5. a first U-shaped opening; 6. a first rectangular opening; 7. a hollow cylinder II; 8. a U-shaped opening II; 9. a second rectangular opening; 10. an L-shaped slide rail; 11. a rectangular groove; 12. a pulley; 13. reinforcing a rib plate; 14. an arc-shaped sliding plate; 15. a rack; 16. a through hole; 17. a fixing plate; 18. a circular hole; 19. a pin shaft; 20. a Z-shaped rotating rod; 21. an extension spring; 22. moving the handle; 23. a stretch rod; 24. a nut; 25. circular retaining ring.

Detailed Description

The utility model is described in detail with reference to the accompanying drawings, and as shown in fig. 1-5, the nut detection protection device comprises a working platform 1, wherein a tensile detection mechanism is arranged on the upper surface of the working platform 1, and a sliding protection mechanism is arranged on the side surface of the tensile detection mechanism;

the stretching detection mechanism comprises hydraulic cylinders 2 at two ends of the upper surface of a working platform 1, the lower ends of the hydraulic cylinders 2 are fixedly connected with the working platform 1, a bearing rod 3 is installed at the telescopic end of each hydraulic cylinder 2, the lower surfaces at two ends of the bearing rod 3 are fixedly connected with the hydraulic cylinders 2, a first hollow cylinder 4 is installed at the center of the lower surface of the bearing rod 3, a first U-shaped opening 5 is formed in the lower surface of the first hollow cylinder 4, a first rectangular opening 6 is formed in the side surface of the first hollow cylinder 4, the first rectangular opening 6 corresponds to the first U-shaped opening 5 in position, a second hollow cylinder 7 is installed at the center of the upper surface of the working platform 1, a second U-shaped opening 8 is formed in the upper surface of the second hollow;

the sliding protection mechanism comprises L-shaped sliding rails 10 on two sides of the outer surface of a hollow cylinder I4, rectangular grooves 11 are formed in the inner side surfaces of the L-shaped sliding rails 10, pulleys 12 are mounted on the opposite side surfaces of the rectangular grooves 11, a supporting shaft in the center of each pulley 12 is connected with the corresponding rectangular groove 11 in an inserting mode, an arc-shaped sliding plate 14 is mounted on one side of each L-shaped sliding rail 10, two ends of each arc-shaped sliding plate 14 are connected with the corresponding L-shaped sliding rail 10 in a sliding mode, and the side surfaces of the; rack 15 is installed to L shape slide rail 10 one side, 14 side surfaces of arc sliding plate are opened there is through-hole 16, installation fixed plate 17 below through-hole 16, fixed plate 17 is equipped with two, side surfaces of fixed plate 17 are opened there is round hole 18, round hole 18 internal surface cartridge has round

pin axle

19, 19 outer surface mounting of round pin axle has Z shape dwang 20, the interlock of through-hole 16 and rack 15 is passed through to Z shape dwang 20 upper end, extension spring 21 is installed to the Z shape dwang 20 other end, extension spring 21 one end and Z shape dwang 20 fixed connection, the extension spring 21 other end and fixed plate 17 fixed connection.

The side surface of the arc-shaped sliding plate 14 is provided with a moving handle 22, and the arc-shaped sliding plate 14 can be rapidly pulled by the action of holding the moving handle 22, so that the testing efficiency is indirectly improved.

A circular retaining ring 25 is arranged in the first U-shaped opening 5, a stretching rod 23 is inserted into the inner ring of the circular retaining ring 25, the lower end of the stretching rod 23 corresponds to the position of the second U-shaped opening 8, a nut 24 is installed at the upper end of the stretching rod 23, the nut 24 is connected with the stretching rod 23 through threads, and the tensile strength of the threads of the nut 24 can be tested more conveniently through the connection effect of the nut 24 and the stretching rod 23.

The upper surface of the bearing rod 3 is provided with a reinforcing rib plate 13, and the structural strength of the bearing rod 3 can be enhanced through the action of the reinforcing rib plate 13.

In the embodiment, an electric appliance of the device is controlled by an external controller, before testing, firstly, a circular check ring 25 is inserted at the upper end of a stretching rod 23, the contact area between the circular check ring 25 and a hollow cylinder I4 can be increased under the action of the circular check ring 25, then, a nut 24 is placed at the upper end of the circular check ring 25 and screwed with the upper end of the stretching rod 23, the nut is connected with the upper end of the stretching rod 23 through threads, so that the fastening state of a bolt is simulated, then, the stretching rod 23 is held by hand and is placed into the hollow cylinder I4 and the hollow cylinder II 7 through a rectangular opening I6 and a rectangular opening II 9, so that the upper end of the stretching rod 2 is embedded into a U-shaped opening I5, and the lower end of the stretching rod 23 is embedded into a U-;

the controller controls the two hydraulic cylinders 2 to extend synchronously, the hydraulic cylinders extend and contract to drive the bearing rod 3 to move upwards, the structural strength of the bearing rod 3 can be enhanced under the action of the reinforcing rib plates 13, the hollow cylinder I4 is driven to move upwards by the movement of the bearing rod 3, the hollow cylinder I4 applies upward force to the circular check ring 25 through the U-shaped opening I5, the circular check ring 25 transmits the force to the stretching rod 23 through the nut 24, the U-shaped opening II 8 at the lower end just limits the movement of the stretching rod 23, and finally, the stretching force is concentrated on the thread position of the nut 24, so that the purpose of testing the stretching force of the nut 24 is achieved, and the strength limit of the thread of the nut 24 can be accurately tested by replacing the stretching rods 23 with different strengths;

before the tensile test, the movable handle 22 is held by hand, then the thumb presses the Z-shaped rotating rod 20 to separate the other end of the Z-shaped rotating rod 20 from the rack 15, then downward force is applied to the movable handle 22, the arc-shaped sliding plate 14 is indirectly pulled to slide downwards and finally slide to the positions of the rectangular opening II 9 and the rectangular opening I6 and be blocked, at the moment, the thumb releases the Z-shaped rotating rod, the upper end of the Z-shaped rotating rod 20 is reset by the action of the tension spring 21 and is inserted into the rack 15, and the purpose of fixing the arc-shaped sliding plate 14 is achieved; the pulley 12 can reduce the friction between the arc-shaped sliding plate 14 and the hollow cylinder 4.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. A nut detection and protection device comprises a working platform (1), and is characterized in that a stretching detection mechanism is arranged on the upper surface of the working platform (1), and a sliding protection mechanism is arranged on the side surface of the stretching detection mechanism;

the stretching detection mechanism comprises hydraulic cylinders (2) at two ends of the upper surface of a working platform (1), the lower ends of the hydraulic cylinders (2) are fixedly connected with the working platform (1), a bearing rod (3) is installed at the telescopic end of the hydraulic cylinders (2), the lower surfaces of two ends of the bearing rod (3) are fixedly connected with the hydraulic cylinders (2), a first hollow cylinder (4) is installed at the center of the lower surface of the bearing rod (3), a first U-shaped opening (5) is formed in the lower surface of the first hollow cylinder (4), a first rectangular opening (6) is formed in the side surface of the first hollow cylinder (4), the first rectangular opening (6) corresponds to the first U-shaped opening (5), a second hollow cylinder (7) is installed at the center of the upper surface of the working platform (1), a second U-shaped opening (8) is formed in the upper surface of the second hollow cylinder (7), and a second rectangular opening;

the sliding protection mechanism comprises L-shaped sliding rails (10) on two sides of the outer surface of a hollow cylinder I (4), a rectangular groove (11) is formed in the inner side surface of each L-shaped sliding rail (10), pulleys (12) are mounted on the opposite side surfaces of the rectangular groove (11), a supporting shaft in the center of each pulley (12) is connected with the corresponding rectangular groove (11) in a plugging mode, an arc-shaped sliding plate (14) is mounted on one side of each L-shaped sliding rail (10), two ends of each arc-shaped sliding plate (14) are connected with the corresponding L-shaped sliding rail (10) in a sliding mode, and the side surface of each arc-shaped; rack (15) are installed to L shape slide rail (10) one side, arc sliding plate (14) side surface is opened there are through-hole (16), through-hole (16) below installation fixed plate (17), fixed plate (17) are equipped with two, fixed plate (17) side surface is opened there are round hole (18), round hole (18) internal surface cartridge has round pin axle (19), round pin axle (19) surface mounting has Z shape dwang (20), through-hole (16) and rack (15) interlock are passed through to Z shape dwang (20) upper end, extension spring (21) are installed to Z shape dwang (20) other end, extension spring (21) one end and Z shape dwang (20) fixed connection, extension spring (21) other end and fixed plate (17) fixed connection.

2. Nut detection guard according to claim 1, characterized in that the arc-shaped sliding plate (14) is equipped with a moving handle (22) on its side surface.

3. The nut detection and protection device is characterized in that a circular retaining ring (25) is arranged in the first U-shaped opening (5), a stretching rod (23) is inserted into the inner ring of the circular retaining ring (25), the lower end of the stretching rod (23) corresponds to the position of the second U-shaped opening (8), a nut (24) is installed at the upper end of the stretching rod (23), and the nut (24) is connected with the stretching rod (23) through threads.

4. The nut detection and protection device according to claim 1, characterized in that a reinforcing rib plate (13) is installed on the upper surface of the bearing rod (3).