Tensile resistance detection device

Abstract

The utility model discloses a tensile resistance detection device which comprises a shell, a pulling mechanism is arranged in an installation cavity, a detection mechanism is arranged on the pulling mechanism, a limiting mechanism used for limiting the detection mechanism is arranged in the installation cavity, the detection mechanism is movably installed in the shell, and the detection mechanism is arranged on the shell. The bottom of the detection mechanism is provided with a positioning mechanism used for bolt positioning, the shell is provided with a plurality of sets of fixing frames in a rectangular array mode, mounting bases are hinged to the interiors of the multiple sets of fixing frames in a damping mode, and supporting legs are arranged at the bottoms of the mounting bases. The pulling mechanism, the detection mechanism, the positioning mechanism and other structures are integrated in the shell, so that the tension detection device is compact in overall structure and reasonable in design, the weight and the size of the tension detection device are reduced, the tension detection device is light in weight and small in size, and therefore when the tension detection device is carried, the tension detection device is convenient to carry. And the tension detection device can be conveniently carried.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt detection, in particular to a tensile force detection device. Background Art

[0002] Bolts are an important fastener that is widely used in various equipment and machinery. Their main purpose is to connect two or more parts together to form a complete system or machine. After the bolts are made, they need to be extracted for tension testing to determine the tension of the batch of bolts.

[0003] The prior art provides a tensile force detection device (announcement number CN215640592U). The utility model package includes an upper fixing mechanism, a lower fixing mechanism, and a tensile mechanism. The tensile mechanism drives the lower fixing mechanism to move up and down. The lower fixing mechanism includes a sliding mechanism, a connecting body and a stepped groove. The sliding mechanism is provided with a connecting body, and the connecting body is provided with a stepped groove. Compared with the prior art, it can be easily connected and has improved adaptability.

[0004] The above-mentioned bolt tension detection device still has some problems in actual use, such as the large size and heavy weight of the detection device, which makes it difficult to move and transport the device and inconvenient to carry. Therefore, we need to propose a tension detection device. Summary of the invention

[0005] The purpose of the utility model is to provide a tensile force detection device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tensile force detection device comprises a shell, a mounting cavity is provided in the shell, a pulling mechanism is provided in the mounting cavity, a detection mechanism is provided on the pulling mechanism, a limiting mechanism for limiting the detection mechanism is provided inside the mounting cavity, the detection mechanism is movably installed in the shell, a positioning mechanism for bolt positioning is provided at the bottom of the detection mechanism, the positioning mechanism is arranged in the shell, a plurality of fixing frames are provided in a rectangular array on the shell, a mounting seat is hingedly connected to the plurality of fixing frames, and a support leg is provided at the bottom of the mounting seat.

[0008] Preferably, the pulling mechanism comprises a screw rod, a fixing sleeve and a fixing seat, the fixing seat is fixedly connected to the top of the shell, the screw rod is movably mounted in the fixing seat and the shell, and the fixing sleeve is threadedly mounted on the screw rod.

[0009] Preferably, the limiting mechanism comprises a positioning rod and a guide rail, the guide rail is fixedly connected to the inner wall of the installation cavity, the positioning rod is fixedly connected to the surface of the fixing sleeve, and the positioning rod is slidably mounted on the guide rail.

[0010] Preferably, the detection mechanism comprises a tension sensor and a tension gauge, the tension sensor is arranged in the installation cavity, the lower end of the fixing sleeve is fixed to the top of the tension sensor, and the tension sensor is electrically connected to the tension gauge.

[0011] Preferably, the positioning mechanism includes a threaded rod and a bolt sleeve, the threaded rod is fixedly mounted on the bottom of the tension sensor, the threaded rod is movably inserted in the housing, the bolt sleeve is threadedly mounted on the lower end of the threaded rod, an avoidance hole is provided at the bottom of the bolt sleeve, an avoidance groove is provided in the bolt sleeve, and the avoidance groove is connected to the avoidance hole.

[0012] Preferably, an adjusting rod is threadedly mounted on the lower end of the supporting leg, and a foot cup is movably mounted on the lower end of the adjusting rod.

[0013] Preferably, it also includes an adjustment seat, a square groove is opened at the bottom of the adjustment seat, the upper end of the screw rod is fixedly connected to a square column, the square column is arranged in the square groove, a fixing screw is arranged on the adjustment seat, the fixing screw is threadedly installed on the square column, and two sets of handles are threadedly installed on the adjustment seat.

[0014] Preferably, a plurality of sets of positioning handles are threadedly mounted on the top of the housing, and the threaded ends of the positioning handles are pressed against the surface of the mounting seat.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model integrates the pulling mechanism, the detection mechanism and the positioning mechanism in the shell, so that the overall structure of the tension detection device is compact and the design is reasonable, and the weight and volume of the tension detection device are reduced, so that the tension detection device is light in weight and small in volume, so that the tension detection device can be conveniently carried when it is carried. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is one of the cross-sectional structural schematic diagrams of the utility model;

[0019] Figure 3 This is the second schematic cross-sectional structure diagram of the present utility model.

[0020] In the figure: 1. housing; 2. screw rod; 3. fixing sleeve; 4. positioning rod; 5. guide rail; 6. tension sensor; 7. threaded rod; 8. bolt sleeve; 9. avoidance hole; 10. avoidance groove; 11. fixing frame; 12. mounting seat; 13. supporting leg; 14. adjusting rod; 15. foot cup; 16. mounting cavity; 17. fixing seat; 18. adjusting seat; 19. square column; 20. square groove; 21. handle; 22. positioning handle; 23. tension gauge. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 The utility model provides a technical solution: a tensile force detection device, including a shell 1, a mounting cavity 16 is provided in the shell 1, a pulling mechanism is provided in the mounting cavity 16, a detection mechanism is provided on the pulling mechanism, a limiting mechanism for limiting the detection mechanism is provided inside the mounting cavity 16, the detection mechanism is movably installed in the shell 1, a positioning mechanism for bolt positioning is provided at the bottom of the detection mechanism, the positioning mechanism is provided in the shell 1, a plurality of sets of fixing frames 11 are provided in a rectangular array on the shell 1, a mounting seat 12 is damped and hinged in the plurality of sets of fixing frames 11, and a support leg 13 is provided at the bottom of the mounting seat 12;

[0023] The pulling mechanism includes a screw rod 2, a fixing sleeve 3 and a fixing seat 17. The fixing seat 17 is fixedly connected to the top of the housing 1. The screw rod 2 is movably installed in the fixing seat 17 and the housing 1. The fixing sleeve 3 is threadedly installed on the screw rod 2.

[0024] The limiting mechanism includes a positioning rod 4 and a guide rail 5. The guide rail 5 is fixedly connected to the inner wall of the installation cavity 16. The positioning rod 4 is fixedly connected to the surface of the fixing sleeve 3. The positioning rod 4 is slidably installed on the guide rail 5.

[0025] By setting the guide rail 5, when the handle 21 drives the adjustment seat 18 to rotate, and the adjustment seat 18 drives the screw rod 2 to rotate, the fixed sleeve 3 moves on the guide rail 5 through the positioning rod 4, thereby positioning the fixed sleeve 3, so that the fixed sleeve 3 can move smoothly;

[0026] The detection mechanism includes a tension sensor 6 and a tension gauge 23. The tension sensor 6 is arranged in the installation cavity 16. The lower end of the fixing sleeve 3 is fixed to the top of the tension sensor 6. The tension sensor 6 is electrically connected to the tension gauge 23.

[0027] The positioning mechanism includes a threaded rod 7 and a bolt sleeve 8. The threaded rod 7 is fixedly installed at the bottom of the tension sensor 6. The threaded rod 7 is movably inserted in the housing 1. The bolt sleeve 8 is threadedly installed at the lower end of the threaded rod 7. An avoidance hole 9 is opened at the bottom of the bolt sleeve 8. An avoidance groove 10 is opened in the bolt sleeve 8. The avoidance groove 10 is connected with the avoidance hole 9.

[0028] By setting the bolt sleeve 8, the bolt sleeve 8 is threadedly installed on the lower end of the threaded rod 7, so that the bolt sleeve 8 can be easily installed or replaced, so that the test can be performed by replacing different objects;

[0029] An adjusting rod 14 is threadedly mounted on the lower end of the supporting leg 13, and a foot cup 15 is movably mounted on the lower end of the adjusting rod 14;

[0030] By setting the adjusting rod 14, the length of the supporting leg 13 can be adjusted by rotating the adjusting rod 14;

[0031] It also includes an adjustment seat 18, a square groove 20 is opened at the bottom of the adjustment seat 18, a square column 19 is fixedly connected to the upper end of the screw rod 2, the square column 19 is arranged in the square groove 20, a fixing screw is arranged on the adjustment seat 18, the fixing screw is threadedly installed on the square column 19, and two sets of handles 21 are threadedly installed on the adjustment seat 18;

[0032] The arrangement of the square column 19 makes it easy to install and remove the adjustment seat 18;

[0033] The top of the housing 1 is threadedly mounted with a plurality of positioning handles 22, and the threaded ends of the positioning handles 22 are pressed against the surface of the mounting seat 12;

[0034] By setting the positioning handle 22, the positioning handle 22 is pressed against the surface of the mounting seat 12, so that the support leg 13 can be fixed to prevent the support leg 13 from rotating and affecting the tension test of the bolt;

[0035] During specific use, the legs 13 are first opened, and the positioning handle 22 is turned so that the threaded end of the positioning handle 22 is pressed against the surface of the mounting seat 12, thereby fixing the legs 13, and placing the housing 1 above the desired detection bolt through the legs 13. The head nut of the bolt can be displaced into the avoidance groove 10 through the moving device, and the handle 21 is turned to drive the adjustment seat 18 to rotate, so that the adjustment seat 18 rotates and the screw rod 2 rotates, so that the screw rod 2 rotates and the fixing sleeve 3 moves, and the fixing sleeve 3 applies tension to the tension sensor 6 during movement, and the bolt of the bolt sleeve 8 is pulled by the tension sensor 6, so that the tension resistance of the bolt sleeve is tested by the tension sensor 6, and the value tested by the tension sensor 6 can be displayed by the tension meter 23.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensile force detection device, comprising a housing (1), characterized in that: The shell (1) is provided with an installation cavity (16), a pulling mechanism is provided in the installation cavity (16), a detection mechanism is provided on the pulling mechanism, a limiting mechanism for limiting the detection mechanism is provided inside the installation cavity (16), the detection mechanism is movably installed in the shell (1), a positioning mechanism for bolt positioning is provided at the bottom of the detection mechanism, the positioning mechanism is arranged in the shell (1), a plurality of sets of fixing frames (11) are provided in a rectangular array on the shell (1), a mounting seat (12) is damped and hinged in the plurality of sets of fixing frames (11), and a support leg (13) is provided at the bottom of the mounting seat (12).

2. A tensile force detection device according to claim 1, characterized in that: The pulling mechanism comprises a screw rod (2), a fixing sleeve (3) and a fixing seat (17); the fixing seat (17) is fixedly connected to the top of the housing (1); the screw rod (2) is movably mounted in the fixing seat (17) and the housing (1); and the fixing sleeve (3) is threadedly mounted on the screw rod (2).

3. A tensile force detection device according to claim 2, characterized in that: The limiting mechanism comprises a positioning rod (4) and a guide rail (5); the guide rail (5) is fixedly connected to the inner wall of the installation cavity (16); the positioning rod (4) is fixedly connected to the surface of the fixing sleeve (3); and the positioning rod (4) is slidably mounted on the guide rail (5).

4. A tensile force detection device according to claim 3, characterized in that: The detection mechanism comprises a tension sensor (6) and a tension gauge (23); the tension sensor (6) is arranged in the mounting cavity (16); the lower end of the fixing sleeve (3) is fixed to the top of the tension sensor (6); and the tension sensor (6) is electrically connected to the tension gauge (23).

5. A tensile force detection device according to claim 4, characterized in that: The positioning mechanism comprises a threaded rod (7) and a bolt sleeve (8); the threaded rod (7) is fixedly mounted on the bottom of the tension sensor (6); the threaded rod (7) is movably inserted into the housing (1); the bolt sleeve (8) is threadedly mounted on the lower end of the threaded rod (7); a relief hole (9) is provided at the bottom of the bolt sleeve (8); a relief groove (10) is provided in the bolt sleeve (8); and the relief groove (10) is communicated with the relief hole (9).

6. A tensile force detection device according to claim 5, characterized in that: An adjusting rod (14) is threadedly mounted on the lower end of the supporting leg (13), and a foot cup (15) is movably mounted on the lower end of the adjusting rod (14).

7. A tensile force detection device according to claim 2, characterized in that: The invention also comprises an adjusting seat (18), the bottom of which is provided with a square groove (20), the upper end of the screw rod (2) is fixedly connected with a square column (19), the square column (19) is arranged in the square groove (20), the adjusting seat (18) is provided with a fixing screw, the fixing screw is threadedly mounted on the square column (19), and two sets of handles (21) are threadedly mounted on the adjusting seat (18).

8. A tensile force detection device according to claim 1, characterized in that: A plurality of sets of positioning handles (22) are threadedly mounted on the top of the housing (1), and the threaded ends of the positioning handles (22) are tightly pressed against the surface of the mounting seat (12).

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