A clamp for tensile testing of electrical fittings

Abstract

The utility model relates to the field of tensile testing of electric hardware, and in particular to a clamp for tensile testing of electric hardware. The utility model provides a clamp for tensile testing of electric hardware, including a mounting rod, a first connecting ring, a clamping claw, a fixing screw, a bolt and a protective mechanism. The first connecting ring is fixedly connected to the right side of the mounting rod, a clamping claw is provided on the right side of the first connecting ring, a bolt is slidably connected between the two clamping claws, a self-contained nut is threadedly provided on the bolt, a fixing screw is threadedly provided on the right side of the mounting rod, and a protective mechanism for blocking broken electric hardware is provided on the right side of the first connecting ring. By providing a protective mechanism, a bidirectional screw, a guide rod, a protective shell and a connecting block in the protective mechanism, the bidirectional screw is rotated to drive the connecting block and the protective shell to move along the guide rod and block the broken electric hardware, which is convenient for blocking the broken electric hardware and can prevent injuries to workers caused by the breaking of the electric hardware during the test.

Description

Technical Field

[0001] The utility model relates to the field of electric power fitting tensile test, in particular to a clamp for electric power fitting tensile test. Background Art

[0002] Electrical fittings are metal accessories that transmit mechanical loads, electrical loads and provide some kind of protection.

[0003] The patent application publication number is CN210893909U, which discloses a fixture for tensile testing of electrical hardware, which includes an installation component and a replacement device, one side of the installation component is connected to a connecting device through a connecting buckle, and one side of the connecting device is connected to a mounting seat through a replacement device, and the replacement device includes a fixing column, a first boss, a threaded hole, a fixing button and a screw, one end of the fixing column is fixed with a first boss, a threaded hole is opened in the middle of the inner side of the fixing column, a fixing button is installed on one side of the fixing column, and a screw is fixed on the side of the fixing button close to the threaded hole, a fourth connecting hole is opened in the middle of the mounting seat, and a fixture body is installed on one side of the mounting seat, the installation component includes a connecting head, a mounting hole, a first connecting hole and a first rectangular through hole, a mounting hole is opened inside one end of the connecting head, and a first connecting hole is opened in the middle of the other end of the connecting head. When the above patent conducts a tensile test on the electric fittings, if the electric fittings break during the tensile test, the debris of the electric fittings is likely to splatter and cause danger to the workers, making it difficult to block the broken electric fittings, resulting in injuries to the workers due to the breakage of the electric fittings during the test.

[0004] In view of the above-mentioned existing patents, it is necessary to provide a clamp for tensile testing of electric fittings that can block broken electric fittings. Utility Model Content

[0005] In order to overcome the disadvantages of the above-mentioned patent that when conducting a tensile test on an electric fitting, if the electric fitting breaks during the tensile test, the electric fitting debris is easily splashed and causes danger to the staff, making it difficult to block the electric fitting, resulting in injuries to the staff due to the breakage of the electric fitting during the test, the utility model provides a clamp for tensile testing of electric fittings.

[0006] The technical implementation scheme of the utility model is: a clamp for tensile testing of electric power fittings, comprising a mounting rod, a first connecting ring, a clamping jaw, a fixing screw, a bolt and a protective mechanism, wherein the first connecting ring is fixedly connected to the right side of the mounting rod, a clamping jaw is provided on the right side of the first connecting ring, a bolt is slidably connected between the two clamping jaws, a self-contained nut is threadedly provided on the bolt, a fixing screw is threadedly provided on the right side of the mounting rod, the fixing screw passes through the mounting rod, and a protective mechanism is provided on the right side of the first connecting ring for blocking the broken electric power fittings.

[0007] More preferably, the protective mechanism includes a connecting frame, a bidirectional screw, a guide rod, a protective shell, a connecting block and a belt. The first connecting ring is symmetrically fixedly connected to the connecting frame front and back, a bidirectional screw is threaded on the connecting frame on the front side, a belt is wrapped around the two bidirectional screws, a connecting block is slidably connected to the bidirectional screw, a guide rod is provided on the connecting frame on the rear side, a connecting block is also slidably connected to the guide rod, a protective shell is fixedly connected between the four connecting blocks, and the two protective shells are located on the right side of the first connecting ring.

[0008] More preferably, a reinforcement mechanism is also included. A reinforcement mechanism for reinforcing the mounting rod is provided on the outer side of the mounting rod, and the reinforcement mechanism includes a second connecting ring, a pin and a threaded sleeve. A second connecting ring is provided on the outer side of the mounting rod, a fixing hole is opened on the second connecting ring, a threaded sleeve is provided on the outer side of the second connecting ring, a pin is slidably connected to the outer side of the threaded sleeve, and the pin is slidably matched with the fixing hole.

[0009] More preferably, an observation window is further included, and the two opposite sides of the two protective shells are each provided with an observation window.

[0010] More preferably, the number of the connection blocks is not less than eight.

[0011] More preferably, the right bidirectional screw rod is fixedly connected with a built-in handle.

[0012] The utility model has the following advantages: 1. By providing a protective mechanism, the bidirectional screw, guide rod, protective shell and connecting block in the protective mechanism, the bidirectional screw can be rotated to drive the connecting block and the protective shell to move along the guide rod and block the broken electric hardware, which is convenient for blocking the broken electric hardware and can prevent injuries to workers due to the breakage of the electric hardware during the test.

[0013] 2. By providing a reinforcement mechanism, a latch and a threaded sleeve in the protection mechanism, the threaded sleeve can be pulled to move along the mounting rod, and then the latch can be pulled to move along the threaded sleeve, so that the mounting rod can be reinforced and its use can be prevented from being affected by the falling off of the fixing screws during fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of components such as the mounting rod, the first connecting ring and the clamping claw of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of components such as the second connecting ring, fixing holes and latch pins of the utility model.

[0017] Among them: 1-mounting rod, 101-first connecting ring, 102-clamping claw, 103-fixing screw, 104-bolt, 2-connecting frame, 3-bidirectional screw, 4-guide rod, 5-protective shell, 501-connecting block, 6-belt, 7-second connecting ring, 8-fixing hole, 9-pin, 10-threaded sleeve, 11-observation window. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installing, connecting, and connecting should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0019] A clamp for tensile testing of electrical fittings, such as Figure 1 and Figure 2 As shown, it includes a mounting rod 1, a first connecting ring 101, a clamping jaw 102, a fixing screw 103, a bolt 104 and a protective mechanism. The right side of the mounting rod 1 is connected to the first connecting ring 101 for supporting the clamping jaw 102. The right side of the first connecting ring 101 is provided with a clamping jaw 102. A bolt 104 is slidably connected between the two clamping jaws 102 for the convenience of fixing the power fittings. A self-provided nut is threaded on the bolt 104. A fixing screw 103 is threaded on the right side of the mounting rod 1 for the convenience of fixing the mounting rod 1 to the connection of the testing machine. The fixing screw 103 passes through the mounting rod 1. A protective mechanism for blocking the broken power fittings is provided on the right side of the first connecting ring 101.

[0020] like Figure 2 and Figure 3As shown, the protection mechanism includes a connecting frame 2, a bidirectional screw 3, a guide rod 4, a protective shell 5, a connecting block 501, a belt 6 and an observation window 11. The first connecting ring 101 is symmetrically connected to the connecting frame 2 for supporting the bidirectional screw 3 and the guide rod 4. The front connecting frame 2 is threaded with a bidirectional screw 3, and the right bidirectional screw 3 is connected with a handle. The staff rotates the handle of the bidirectional screw 3 to drive the bidirectional screw 3 to rotate. A belt 6 is wound around the two bidirectional screws 3, and a The connecting block 501 enables the bidirectional screw 3 to drive the connecting block 501 to move. A guide rod 4 that plays a guiding role is provided on the connecting frame 2 on the rear side. The connecting block 501 is also slidably connected to the guide rod 4. The number of the connecting blocks 501 is not less than eight. A protective shell 5 is connected between the four connecting blocks 501 to prevent the broken power hardware from splashing out. The two protective shells 5 are located on the right side of the first connecting ring 101. Observation windows 11 are provided on the opposite sides of the two protective shells 5. The staff can observe the test of the power hardware through the observation window 11.

[0021] When the device is needed, during the tensile test of the electrical fittings, the mounting rod 1 needs to be installed on the testing machine. During the installation of the mounting rod 1, the staff rotates the fixing screw 103 and moves it to the right along the mounting rod 1. When the fixing screw 103 moves to a suitable position, the staff removes the fixing screw 103. After the fixing screw 103 is removed, the staff places the mounting rod 1 on the connection of the testing machine and aligns it with it. Then the staff puts the fixing screw 103 back on the mounting rod 1. After the fixing screw 103 is put back, the staff rotates the fixing screw 103 and moves it to the left along the mounting rod 1. When the fixing screw 103 moves to a suitable position, the staff no longer rotates the fixing screw 103, which facilitates the fixing of the mounting rod 1. After the mounting rod 1 is fixed on the testing machine, the staff member turns the handle of the bidirectional screw 3 to drive the bidirectional screw 3 to rotate, the bidirectional screw 3 drives the belt 6 to rotate, and the belt 6 drives another bidirectional screw 3 to rotate. While the bidirectional screw 3 and the other bidirectional screw 3 are rotating, the connecting block 501 and the protective shell 5 are driven to move outward. During the movement of the protective shell 5, the protective shell 5 drives the connecting block 501 on the other side to move outward along the guide rod 4. When the protective shell 5 moves to a suitable position, the staff member no longer turns the handle of the bidirectional screw 3, and then the staff member turns the nut of the bolt 104 to move outward along the bolt 104. When the nut of the bolt 104 moves to a suitable position, the staff member screws the bolt 104. 4. Remove the nut that comes with it, then pull the bolt 104 to move upward along the clamp 102, so that the bolt 104 and the clamp 102 fall off and contact, and then put the power hardware between the two clamps 102. Then the staff pulls the bolt 104 to move downward along the clamp 102 and the power hardware. When the bolt 104 moves to a suitable position, the staff puts the nut that comes with the bolt 104 back on the bolt 104, and then rotates the nut that comes with the bolt 104 in the opposite direction to move it inward along the bolt 104. When the nut that comes with the bolt 104 rotates in the opposite direction to a suitable position, the staff no longer rotates the nut that comes with the bolt 104, so that the power hardware that needs to be tensile tested is fixed on the bolt 104. After the power hardware is fixed, the staff will pull the wire rope After the wire rope is fixed on the other side of the power fitting, the staff repeats the above-mentioned operation of turning the handle of the bidirectional screw rod 3 in the opposite direction, so that the protective shell 5 returns to its original position. Then the staff pulls the wire rope to drive the power fitting to be pulled outward. During the pulling process of the power fitting, if the power fitting breaks, it is recorded as failing the tensile test of the power fitting. If the power fitting is intact, it is recorded as passing the tensile test of the power fitting. After the power fitting is tested, the staff releases the power fitting. During the breaking process of the power fitting, debris will be generated, and the debris will splash into the protective shell 5, which is convenient for protecting the staff. The above operation is repeated. After the test of the power fitting is completed, it is convenient to block the broken power fitting.This can prevent injuries to workers caused by the breakage of electrical fittings during testing. Example 2

[0022] On the basis of Example 1, Figure 3 As shown, a reinforcement mechanism is also included. A reinforcement mechanism for reinforcing the mounting rod 1 is provided on the outer side of the mounting rod 1. The reinforcement mechanism includes a second connecting ring 7, a latch 9 and a threaded sleeve 10. A second connecting ring 7 is provided on the outer side of the mounting rod 1, so that the threaded sleeve 10 moves along the second connecting ring 7. A fixing hole 8 is opened on the second connecting ring 7. A threaded sleeve 10 is provided on the outer side of the second connecting ring 7. A latch 9 is slidably connected to the outer side of the threaded sleeve 10 to facilitate fixing the threaded sleeve 10. The latch 9 slidably cooperates with the fixing hole 8.

[0023] During the process of fixing the mounting rod 1, when the mounting rod 1 needs to be reinforced, the staff pulls the pin 9 to move outward along the fixing hole 8. When the pin 9 moves to a suitable position, the pin 9 is disengaged from the threaded sleeve 10, and the staff pulls the threaded sleeve 10 to move to the left along the mounting rod 1. When the threaded sleeve 10 moves to a suitable position, the staff pulls the pin 9 to move inward along the fixing hole 8, which is convenient for fixing the threaded sleeve 10, thereby facilitating the reinforcement of the mounting rod 1, and further preventing the fixing screw 103 from falling off during fixation and affecting its use.

[0024] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A clamp for tensile testing of electric hardware, comprising a mounting rod (1), a first connecting ring (101), a clamping jaw (102), a fixing screw (103) and a bolt (104), wherein the first connecting ring (101) is fixedly provided on the right side of the mounting rod (1), a clamping jaw (102) is provided on the right side of the first connecting ring (101), a bolt (104) is slidably connected between the two clamping jaws (102), a self-contained nut is threadedly provided on the bolt (104), a fixing screw (103) is threadedly provided on the right side of the mounting rod (1), and the fixing screw (103) passes through the mounting rod (1), characterized in that: It also includes a protection mechanism, wherein a protection mechanism for blocking broken electrical fittings is provided on the right side of the first connection ring (101), wherein the protection mechanism includes a protection shell (5), and the protection shells (5) are fixedly provided between the four connection blocks (501), and two protection shells (5) are located on the right side of the first connection ring (101).

2. A clamp for tensile testing of electrical hardware according to claim 1, wherein the protective mechanism further comprises a connecting frame (2), a bidirectional screw (3), a guide rod (4), a connecting block (501) and a belt (6), the first connecting ring (101) is symmetrically fixed with the connecting frame (2) in the front and rear directions, the front connecting frame (2) is threadedly provided with a bidirectional screw (3), a belt (6) is wound between the two bidirectional screws (3), a connecting block (501) is slidably connected to the bidirectional screw (3), the rear connecting frame (2) is provided with a guide rod (4), and the guide rod (4) is also slidably connected to the connecting block (501).

3. A clamp for tensile testing of electric power fittings according to claim 2, characterized in that: The invention also comprises a reinforcement mechanism, wherein the outer side of the mounting rod (1) is provided with a reinforcement mechanism for reinforcing the mounting rod (1), the reinforcement mechanism comprising a second connecting ring (7), a latch pin (9) and a threaded sleeve (10), the outer side of the mounting rod (1) is provided with a second connecting ring (7), a fixing hole (8) is formed on the second connecting ring (7), the outer side of the second connecting ring (7) is provided with a threaded sleeve (10), the outer side of the threaded sleeve (10) is slidably connected with a latch pin (9), and the latch pin (9) is slidably matched with the fixing hole (8).

4. A clamp for tensile testing of electric power fittings according to claim 3, characterized in that: An observation window (11) is also included. The observation window (11) is provided on opposite sides of the two protective shells (5).

5. A clamp for tensile testing of electric power fittings according to claim 4, characterized in that: The number of connection blocks (501) is not less than eight.

6. A clamp for tensile testing of electric power fittings according to claim 5, characterized in that: A built-in handle is fixedly provided on the right bidirectional screw rod (3).

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