CN219224382U

CN219224382U - Expansion bolt tensile force testing device

Info

Publication number: CN219224382U
Application number: CN202223110911.9U
Authority: CN
Inventors: 谭诚; 谢树绿; 谭林; 谭皓文
Original assignee: Jinding Technology Huizhou Co ltd
Current assignee: Jinding Technology Huizhou Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-06-20
Anticipated expiration: 2032-11-23

Abstract

The utility model discloses an expansion bolt tension testing device, which belongs to the field of testing devices and comprises a hydraulic universal testing machine, a middle cross beam and an upper cross beam, wherein a first fixing mechanism is arranged on the top surface of the middle cross beam of the hydraulic universal testing machine, a sleeve of the expansion bolt can be clamped and fixed according to expansion bolts of different types, and the expansion bolt, a nut and a gasket on the expansion bolt can be limited and fixed by matching with a second fixing mechanism arranged on the bottom surface of the upper cross beam.

Description

Expansion bolt tensile force testing device

Technical Field

The utility model relates to the field of testing devices, in particular to an expansion bolt tensile testing device.

Background

Expansion bolts are a special threaded connection for fixing pipe supports/hangers/brackets or equipment to walls, floors and columns. In order to ensure that the expansion bolts are firmly connected, the expansion bolts need to be tested to ensure the use safety of the expansion bolts.

In the prior art, the tensile property, tensile strength, deformation rate and breaking force of an expansion bolt are generally tested by a hydraulic universal testing machine, and the hydraulic universal testing machine is special equipment for testing the tensile, compression, bending, shearing and the like of a metal material.

However, when expansion bolts carry out tensile test through the hydraulic universal testing machine, the jaw of the traditional hydraulic universal testing machine can not carry out effectual fixing to the expansion bolts, and the expansion bolts of different models need to be changed different clamps when carrying out tensile test, and the operation is got up more loaded down with trivial details, and has reduced work efficiency, simultaneously, the expansion bolts is blocked in the clamp easily after tensile test fracture and can't be taken out.

Disclosure of Invention

The utility model mainly aims to provide an expansion bolt tensile force testing device which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides an expansion bolt tensile testing device, includes fluid pressure type universal testing machine, well crossbeam and entablature, the top surface of well crossbeam is equipped with first fixed establishment, and first fixed establishment includes fixed plate, two-way lead screw, backup pad and fixed block, fixed plate fixed connection is in the top surface of well crossbeam, and two-way lead screw passes through the dwang swing joint of front and back end in the top surface of fixed plate, two the backup pad is respectively through movable block and two-way lead screw swing joint of bottom surface, and fixed block fixed connection is on the inside wall of backup pad, the bottom surface of entablature is equipped with second fixed establishment, and second fixed establishment includes concave plate, clamp splice and screw knob, concave plate fixed connection is on the bottom surface of entablature, and two clamp splice respectively through the T type slide bar swing joint of top surface in the notch bottom surface of concave plate, screw knob fixed connection is in the left and right sides of concave plate, and screw knob passes through the rotating block and clamp splice swing joint of inside wall end, still be equipped with expansion bolt body between first fixed establishment and the second fixed establishment.

Preferably, the fixed plate is fixedly installed on the top surface of the middle cross beam, the top surface of the fixed plate is provided with a groove, both sides of the inner wall of the groove are respectively provided with a sliding groove, and both ends of the inner wall of the groove are respectively provided with a rotating hole.

Preferably, the front end and the rear end of the bidirectional screw rod are respectively and fixedly provided with a rotating rod, the rotating rods are movably arranged in the rotating holes, and the front end of the rotating rods is also fixedly provided with a hand-screwing knob on the end wall of the rotating rod.

Preferably, the bottom surfaces of the two supporting plates are respectively and fixedly provided with a movable block, the front end of each movable block is provided with a first threaded hole, each movable block is in threaded connection with the two-way screw rod through the first threaded hole, the side walls of the two sides of each movable block are respectively and fixedly provided with a sliding block, each sliding block is movably arranged in a sliding groove, each fixed block is fixedly arranged on the inner side wall of each supporting plate, and the inner side wall of each fixed block is provided with a clamping groove.

Preferably, the concave plate is fixedly arranged on the bottom surface of the upper cross beam, a T-shaped sliding groove is formed in the inner top surface of a notch of the concave plate, and second threaded holes are respectively formed in the side walls of two sides of the concave plate.

Preferably, the top surfaces of the two clamping blocks are fixedly provided with T-shaped sliding rods, the T-shaped sliding rods are movably arranged in the T-shaped sliding grooves, the inner side walls of the clamping blocks are provided with fixed grooves, the outer side walls of the clamping blocks are provided with convex grooves, the threaded knob is in threaded connection with the second threaded hole, the inner side ends of the threaded knob are fixedly provided with rotating blocks, and the rotating blocks are movably arranged in the convex grooves.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, through the first fixing mechanism arranged on the top surface of the middle cross beam of the hydraulic universal testing machine, the sleeve of the hydraulic universal testing machine can be clamped and fixed according to expansion bolts of different types, and the second fixing mechanism arranged on the bottom surface of the upper cross beam is matched, so that the bolts, nuts and gaskets on the expansion bolts can be limited and fixed, the expansion bolts of different types can be quickly fixed when the expansion bolts pass through the hydraulic universal testing machine for tensile testing, and different clamps are not required to be replaced, so that the working efficiency is improved, the expansion bolts are divided into an upper part and a lower part to be sequentially clamped on the first fixing mechanism and the second fixing mechanism after being broken, and then the broken expansion bolts can be taken out after the test is finished.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the overall structure of the first and second fixing mechanisms of the present utility model;

FIG. 3 is a schematic view showing the first fixing mechanism of the present utility model;

fig. 4 is a schematic diagram illustrating the second fixing mechanism according to the present utility model.

In the figure: 1. hydraulic universal testing machine; 2. a middle cross beam; 3. an upper cross beam; 4. a first fixing mechanism; 5. a second fixing mechanism; 6. an expansion bolt body; 7. a fixing plate; 8. a groove; 9. a chute; 10. a rotation hole; 11. a two-way screw rod; 12. a rotating lever; 13. screwing a knob by hand; 14. a movable block; 15. a first threaded hole; 16. a slide block; 17. a support plate; 18. a fixed block; 19. a clamping groove; 20. a concave plate; 21. a T-shaped sliding groove; 22. a second threaded hole; 23. clamping blocks; 24. a fixing groove; 25. a T-shaped slide bar; 26. a convex groove; 27. a threaded knob; 28. and rotating the block.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-4, an expansion bolt tensile testing device comprises a hydraulic universal testing machine 1, a middle cross beam 2 and an upper cross beam 3, wherein a first fixing mechanism 4 is arranged on the top surface of the middle cross beam 2, the first fixing mechanism 4 comprises a fixing plate 7, a bidirectional screw rod 11, a supporting plate 17 and a fixing block 18, the fixing plate 7 is fixedly connected to the top surface of the middle cross beam 2, the bidirectional screw rod 11 is movably connected to the top surface of the fixing plate 7 through a rotating rod 12 at the front end and the rear end, two supporting plates 17 are respectively movably connected with the bidirectional screw rod 11 through movable blocks 14 at the bottom surface, the fixing block 18 is fixedly connected to the inner side wall of the supporting plate 17, a second fixing mechanism 5 is arranged on the bottom surface of the upper cross beam 3, the second fixing mechanism 5 comprises a concave plate 20, a clamping block 23 and a threaded knob 27, the concave plate 20 is fixedly connected to the bottom surface of the upper cross beam 3, the two clamping blocks 23 are respectively movably connected to the inner bottom surface of a concave plate 20 through T-shaped sliding rod 25 at the top surface, the threaded knob 27 is fixedly connected to the left side and right side of the concave plate 20, the threaded knob 27 is movably connected to the clamping block 23 through a rotating block 28 at the inner side wall end, and the second fixing mechanism 6 is further provided with an expansion bolt body 6.

As shown in fig. 1-4, in this embodiment, in order to facilitate the fixing of the expansion bolt body 6 of different types when the tensile test is performed by the hydraulic universal testing machine 1 through the first fixing mechanism 4 and the second fixing mechanism 5, the fixing plate 7 is fixedly installed on the top surface of the middle cross beam 2, the top surface of the fixing plate 7 is provided with a groove 8, two sides of the inner wall of the groove 8 are respectively provided with a chute 9, front and rear ends of the inner wall of the groove 8 are respectively provided with a rotating hole 10, front and rear ends of the bidirectional screw rod 11 are respectively fixedly installed with a rotating rod 12, the rotating rod 12 is movably installed in the rotating hole 10, the end wall of the front rotating rod 12 is fixedly installed with a hand-twisting knob 13, the bottom surfaces of the two support plates 17 are respectively fixedly installed with a movable block 14, the front end of the movable block 14 is provided with a first threaded hole 15, the movable block 14 is in threaded connection with the bidirectional screw rod 11 through a first threaded hole 15, the sliding blocks 16 are respectively and fixedly arranged on the side walls of the two sides of the movable block 14, the sliding blocks 16 are movably arranged in the sliding grooves 9, the fixed block 18 is fixedly arranged on the inner side wall of the supporting plate 17, the inner side wall of the fixed block 18 is provided with a clamping groove 19, the concave plate 20 is fixedly arranged on the bottom surface of the upper cross beam 3, the inner top surface of the concave plate 20 is provided with a T-shaped sliding groove 21, the side walls of the two sides of the concave plate 20 are respectively provided with a second threaded hole 22, the top surfaces of the two clamping blocks 23 are fixedly provided with T-shaped sliding rods 25, the T-shaped sliding rods 25 are movably arranged in the T-shaped sliding grooves 21, the inner side wall of the clamping blocks 23 is provided with a fixed groove 24, the outer side wall of the clamping blocks 23 is provided with a convex groove 26, the threaded knob 27 is in threaded connection with the second threaded hole 22, and the inner side end of the threaded knob 27 is fixedly provided with a rotating block 28, the rotating block 28 is movably arranged in the convex groove 26;

the specific use operation of the first fixing mechanism 4 and the second fixing mechanism 5 is as follows: firstly, the sleeve part of the expansion bolt body 6 needing tensile test is arranged between symmetrical fixed blocks 18, then, a hand-twisting knob 13 arranged at the front end of a fixed plate 7 on the top surface of a middle cross beam 2 is rotated, the hand-twisting knob 13 drives a rotating rod 12 to rotate in a rotating hole 10 formed in the fixed plate 7, the rotating rod 12 drives a bidirectional screw rod 11 to rotate in a groove 8 formed in the top surface of the fixed plate 7, when the bidirectional screw rod 11 rotates, because a movable block 14 arranged on the bottom surface of two support plates 17 is in threaded connection with the bidirectional screw rod 11 through a first threaded hole 15 formed at the front end, the symmetrical movable block 14 performs relative movement operation in the groove 8 along the bidirectional screw rod 11 through the first threaded hole 15, and drives the symmetrical fixed block 18 to perform relative movement operation until the hand-twisting knob 13 cannot rotate, the sleeve of the expansion bolt body 6 is clamped and fixed between clamping grooves 19 formed on the side walls of fixed blocks 18 arranged on the inner side walls of symmetrical supporting plates 17, then the hydraulic universal testing machine 1 controls the upper cross beam 3 to move downwards and enables two clamping blocks 23 at the bottom of a concave plate 20 arranged on the bottom surface of the upper cross beam 3 to be respectively arranged on two sides of a nut and a gasket arranged on the expansion bolt body 6, then a threaded knob 27 arranged on two sides of the concave plate 20 is rotated, the threaded knob 27 realizes threaded rotation operation in second threaded holes 22 formed on two sides of the concave plate 20, a rotating block 28 arranged on the inner side end of the threaded knob 27 rotates in a convex groove 26 formed on the outer side wall of the clamping block 23, the clamping block 23 is pushed to move inwards in the process of continuously rotating the threaded knob 27, the convex groove 26 arranged on the top surface of the clamping block 23 slides in a T-shaped sliding groove 21 formed on the inner top surface of a concave opening of the concave plate 20, at this time, the symmetrical clamping blocks 23 will perform a relative movement operation, and the bolts of the expansion bolt body 6 and the nuts and gaskets on the bolts are clamped and limited between the symmetrical clamping blocks 23 and between the fixing grooves 24 formed on the inner side walls of the clamping blocks 23, finally, the hydraulic universal testing machine 1 controls the middle cross beam 2 and the upper cross beam 3 to move in opposite directions respectively, the upper cross beam 3 drives the bolts of the expansion bolt body 6 to enter the sleeve through the second fixing mechanism 5 and continuously performs a tensile test on the expansion bolt body 6 in the process, and after the test is finished, the hand-screwing knob 13 and the threaded knob 27 are reversely rotated to take out the expansion bolt body 6, so that the clamping and fixing limiting can be performed on the expansion bolt bodies 6 of different models by adjusting the spacing between the fixing blocks 18 and the spacing between the clamping blocks 23.

The foregoing is only illustrative of the preferred embodiments of the present utility model and, although the present utility model has been described in detail with reference to the foregoing embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model, and equivalents of the features may be substituted for elements thereof without departing from the true spirit and scope of the utility model.

Claims

1. The utility model provides an expansion bolts tensile testing device, includes fluid pressure type universal testing machine (1), middle cross beam (2) and entablature (3), its characterized in that: the top surface of the middle cross beam (2) is provided with a first fixing mechanism (4), the first fixing mechanism (4) comprises a fixing plate (7), a bidirectional screw rod (11), a supporting plate (17) and a fixing block (18), the fixing plate (7) is fixedly connected to the top surface of the middle cross beam (2), the bidirectional screw rod (11) is movably connected to the top surface of the fixing plate (7) through a rotating rod (12) at the front end and the rear end, two supporting plates (17) are respectively movably connected with the bidirectional screw rod (11) through movable blocks (14) at the bottom surface, the fixing block (18) is fixedly connected to the inner side wall of the supporting plate (17), the bottom surface of the upper cross beam (3) is provided with a second fixing mechanism (5), the second fixing mechanism (5) comprises a concave plate (20), clamping blocks (23) and threaded knobs (27), the concave plate (20) is fixedly connected to the bottom surface of the upper cross beam (3), the two clamping blocks (23) are respectively movably connected to the inner bottom surface of a concave opening of the concave plate (20) through T-shaped rotating rods (25) at the top surfaces, the threaded knobs (27) are fixedly connected to the left side inner side wall (28) and the right side wall (23) through the threaded knobs (28), an expansion bolt body (6) is further arranged between the first fixing mechanism (4) and the second fixing mechanism (5).

2. The expansion bolt tensile testing device according to claim 1, wherein: the fixed plate (7) is fixedly arranged on the top surface of the middle cross beam (2), the top surface of the fixed plate (7) is provided with grooves (8), sliding grooves (9) are respectively formed in two sides of the inner wall of each groove (8), and rotating holes (10) are respectively formed in the front end and the rear end of the inner wall of each groove (8).

3. The expansion bolt tensile testing device according to claim 2, wherein: the front end and the rear end of the bidirectional screw rod (11) are respectively fixedly provided with a rotating rod (12), the rotating rods (12) are movably arranged in the rotating holes (10), and the end walls of the rotating rods (12) at the front ends are fixedly provided with hand-screwing knobs (13).

4. An expansion bolt tension testing apparatus as defined in claim 3, wherein: the two bottom surfaces of the supporting plates (17) are respectively and fixedly provided with a movable block (14), the front end of the movable block (14) is provided with a first threaded hole (15), the movable block (14) is in threaded connection with the bidirectional screw rod (11) through the first threaded hole (15), the side walls on the two sides of the movable block (14) are respectively and fixedly provided with a sliding block (16), the sliding blocks (16) are movably arranged in the sliding grooves (9), the fixed block (18) is fixedly arranged on the inner side wall of the supporting plates (17), and the inner side wall of the fixed block (18) is provided with a clamping groove (19).

5. The expansion bolt tensile testing device according to claim 4, wherein: the concave plate (20) is fixedly arranged on the bottom surface of the upper cross beam (3), a T-shaped sliding groove (21) is formed in the inner top surface of a notch of the concave plate (20), and second threaded holes (22) are respectively formed in the side walls of two sides of the concave plate (20).

6. The expansion bolt tensile testing device according to claim 5, wherein: the top surfaces of the two clamping blocks (23) are fixedly provided with T-shaped sliding rods (25), the T-shaped sliding rods (25) are movably arranged in the T-shaped sliding grooves (21), the inner side walls of the clamping blocks (23) are provided with fixing grooves (24), the outer side walls of the clamping blocks (23) are provided with convex grooves (26), the threaded knobs (27) are in threaded connection with the second threaded holes (22), the inner side ends of the threaded knobs (27) are fixedly provided with rotating blocks (28), and the rotating blocks (28) are movably arranged in the convex grooves (26).