Cable explosion-proof pipe elbow joint mounting and dismounting tool

Abstract

The utility model relates to the technical field of elbow joint mounting and dismounting tools, and particularly discloses a cable explosion-proof pipe elbow joint mounting and dismounting tool which comprises a wrench head and a torque handle which are detachably connected. A butt joint groove is formed in the wrench head, a first butt joint part, a second butt joint part and a third butt joint part are symmetrically arranged on the two opposite groove walls of the butt joint groove correspondingly, and the first butt joint part is located at a groove opening of the butt joint groove and used for crossing the joint elbow in the axial direction of the cable explosion-proof pipe elbow joint to be connected with the joint nut in a clamped mode; when the first butt joint part is connected with the connector nut in a clamped mode, the second butt joint part is connected with the connector bent pipe in an inserted mode, and the third butt joint part is connected with the annular protrusion in an inserted mode. The device acts on the cable explosion-proof pipe elbow joint in the axial direction of the cable explosion-proof pipe elbow joint, the cable explosion-proof pipe elbow joint can be driven to rotate by applying torsion to rotate the torque handle, the device is not affected by the elbow joint and the annular protrusion, operation is easy, working efficiency is high, and practicability is high.

Description

Technical Field

[0001] This application relates to the technical field of installation and disassembly fixtures for pipe bend joints, and in particular to an installation and disassembly fixture for a cable explosion-proof conduit pipe bend joint. Background Technology

[0002] Explosion-proof cable conduit bends are high-strength, fire-resistant, and explosion-proof cable conduit bends, commonly used in special locations and fields in industrial sectors.

[0003] like Figure 1 As shown, a cable explosion-proof conduit bend connector includes a connector nut 01, a connector bend 02, and an annular protrusion 03. The connector bend 02 has a certain curvature, and both ends of the connector bend 02 are threaded for connection with other pipe fittings. The annular protrusion 03 is integrally formed on the periphery of the connector bend 02. The connector nut 01 for locking is installed at the end of the connector bend 02 away from the annular protrusion 03.

[0004] In related technologies, due to the narrow installation space of the cable explosion-proof conduit bend joint, when the open-end wrench is engaged with the joint nut 01 in the radial direction of the cable explosion-proof conduit bend joint, it is inconvenient for the operator to directly rotate the open-end wrench to install and remove the cable explosion-proof conduit bend joint. Furthermore, due to the presence of the joint bend 02, the open-end wrench cannot be directly engaged with the joint nut 01 in the axial direction of the cable explosion-proof conduit bend joint. Therefore, the operator uses a combination wrench: a first open-end wrench is engaged with the joint nut 01 in the radial direction of the cable explosion-proof conduit bend joint, and then a second open-end wrench is engaged with the handle of the first open-end wrench in a direction perpendicular to the first open-end wrench. Torque is applied to cause the first open-end wrench to rotate the cable explosion-proof conduit bend joint, thereby achieving the installation and removal of the cable explosion-proof conduit bend joint.

[0005] However, the above installation and disassembly methods require careful operation of multiple open-end wrenches, and the use of the first and second open-end wrenches together is difficult due to the presence of the connector bend 02. Utility Model Content

[0006] To facilitate the installation and disassembly of cable explosion-proof conduit bend joints without being affected by the bend in the joint, this application provides a tooling for the installation and disassembly of cable explosion-proof conduit bend joints.

[0007] This application provides a tooling for installing and disassembling a cable explosion-proof conduit bend joint, which adopts the following technical solution:

[0008] A tooling for installing and disassembling a cable explosion-proof conduit bend connector includes a wrench head and a torque handle, which are detachably connected. The wrench head has a mating groove, and two opposite walls of the groove are symmetrically provided with a first mating portion, a second mating portion, and a third mating portion. The first mating portion is located at the opening of the groove and is used to pass over the bend connector along the axial direction of the cable explosion-proof conduit bend connector and engage with the connector nut. When the first mating portion is engaged with the connector nut, the second mating portion is inserted into the bend connector, and the third mating portion is inserted into an annular protrusion.

[0009] By adopting the above technical solution, after connecting the wrench head to the torque handle, the wrench head is inserted along the axial direction of the cable explosion-proof pipe bend joint. The first mating part passes over the joint bend and engages with the joint nut. At the same time, the joint bend is inserted into the second mating part, and the annular protrusion is inserted into the third mating part. Applying torque and turning the torque handle will drive the cable explosion-proof pipe bend joint to rotate, thereby realizing the installation or disassembly of the cable explosion-proof pipe bend joint. This is convenient for operation and use, and does not damage the cable explosion-proof pipe bend joint.

[0010] Optionally, the axis of the mating groove is on the same straight line as the axis of the wrench head.

[0011] By adopting the above technical solution, when the wrench head is applied to the bend joint of the cable explosion-proof pipe, the force can be more evenly distributed, effectively extending the service life.

[0012] Optionally, the two opposing groove walls of the first mating portion are recessed in a direction away from the axis, and the distance between the two groove walls of the first mating portion is equal to the diameter of the connector nut.

[0013] By adopting the above technical solution, the groove wall of the first snap-fit ​​groove is snapped into connection with the connector nut. When the torque handle is turned, the connector nut is driven to rotate together, thus realizing the installation and disassembly of the cable explosion-proof pipe bend connector.

[0014] Optionally, the second mating part is located at one end of the mating groove near the bottom of the groove, and the distance between the two groove walls of the second mating part is equal to the diameter of the joint bend.

[0015] By adopting the above technical solution, when the connector nut is engaged in the first mating part, the connector bend is inserted into the second mating part, so that the wrench head is not affected by the connector bend when it is rotated.

[0016] Optionally, the end of the second mating portion near the first mating portion is provided as a nut limiting surface, which abuts against the connector nut.

[0017] By adopting the above technical solution, the nut limiting surface abuts against the connector nut, which makes the contact area between the wrench head and the cable explosion-proof pipe bend connector larger when the wrench head rotates. This enables precise positioning of the wrench head and the connector nut, and at the same time makes the force exerted by the wrench head on the cable explosion-proof pipe bend connector more uniform, effectively extending its service life.

[0018] Optionally, the two opposing groove walls of the third mating portion are recessed in a direction away from the axis, and the distance between the two groove walls of the third mating portion is equal to the diameter of the annular protrusion.

[0019] By adopting the above technical solution, when the connector nut is engaged in the first mating part, the connector bend is inserted into the second mating part, and the annular protrusion is inserted into the third mating part, so that the rotation of the wrench head is not affected by the annular protrusion.

[0020] Optionally, the end of the second docking portion near the third docking portion is provided as a raised limiting surface, which abuts against the annular protrusion.

[0021] By adopting the above technical solution, the protruding limiting surface further restricts the position of the wrench head, making the connection between the wrench head and the cable explosion-proof pipe bend joint more stable and the force more uniform.

[0022] Optionally, the bottom center of the mating groove is provided with a threaded hole, one end of the torque handle is provided with a mounting protrusion, the periphery of the mounting protrusion is provided with external threads, and the wrench head is threadedly connected to the mounting protrusion.

[0023] By adopting the above technical solution, the wrench head and the torque handle are connected by a threaded connection, which makes the connection between the two firm and easy to install and disassemble.

[0024] Optionally, the torque handle has a locking surface near the periphery of the mounting protrusion. There are two locking surfaces, which are used to lock the torque handle and the wrench head.

[0025] By adopting the above technical solution, the locking surface provides a flat working surface, making the connection between the torque handle and the wrench head more reliable.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. After connecting the wrench head to the torque handle, insert the wrench head along the axial direction of the cable explosion-proof pipe bend joint. The first mating part passes over the bend joint and engages with the joint nut. At the same time, the bend joint is inserted into the second mating part, and the annular protrusion is inserted into the third mating part. Apply torque and turn the torque handle to drive the cable explosion-proof pipe bend joint to rotate, thereby realizing the installation or disassembly of the cable explosion-proof pipe bend joint. This is convenient for operation and use, and does not damage the cable explosion-proof pipe bend joint.

[0028] 2. By setting the nut limiting surface and the raised limiting surface, the contact area between the wrench head and the cable explosion-proof pipe bend joint is larger when the wrench head is rotated, which can achieve precise positioning of the wrench head and the cable explosion-proof pipe bend joint. At the same time, the force exerted by the wrench head on the cable explosion-proof pipe bend joint is more uniform, effectively extending the service life.

[0029] 3. The wrench head and torque handle are connected by a threaded connection, which makes the connection firm and easy to install and disassemble. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the cable explosion-proof conduit bend joint;

[0031] Figure 2 This is a schematic diagram of the overall structure of the installation and disassembly tooling for the cable explosion-proof conduit bend joint according to an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the structure of the cable explosion-proof pipe bend joint installation and disassembly tooling used on the cable explosion-proof pipe bend joint according to the embodiments of this application;

[0033] Figure 4 This is a schematic diagram of the structure when the wrench head and torque handle are separated according to an embodiment of this application.

[0034] Reference numerals: 01, connector nut; 02, connector bend; 03, annular protrusion; 1, wrench head; 11, mating groove; 111, first mating part; 112, second mating part; 113, third mating part; 114, nut limiting surface; 115, protrusion limiting surface; 12, threaded hole; 2, torque handle; 21, mounting protrusion; 22, locking surface. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 2-4 This application will be described in further detail.

[0036] This application discloses a tooling for installing and disassembling a cable explosion-proof conduit bend joint, referring to... Figure 2 and Figure 3 It includes a wrench head 1 and a torque handle 2, which are detachably connected. The wrench head 1 has a mating groove 11, and the two opposite groove walls of the mating groove 11 are symmetrically provided with a first mating part 111, a second mating part 112 and a third mating part 113. The first mating part 111 is used to snap into the connector nut 01, the second mating part 112 is used to insert into the connector bend 02, and the third mating part 113 is used to insert into the annular protrusion 03.

[0037] In use, connect the wrench head 1 to the torque handle 2, hold the torque handle 2, and the first mating part 111 passes over the joint bend 02 along the axial direction of the cable explosion-proof pipe bend joint and is engaged with the joint nut 01. At the same time, the joint bend 02 is inserted into the second mating part 112 and the annular protrusion 03 is inserted into the third mating part 113. Apply torque and turn the torque handle 2 to drive the joint nut 01 to rotate, so as to realize the installation or disassembly of the cable explosion-proof pipe bend joint. It is easy to operate and use, and does not damage the cable explosion-proof pipe bend joint.

[0038] Specifically, the wrench head 1 is a rectangular block, and the axis of the mating groove 11 is on the same straight line as the axis of the wrench head 1, so that the wrench head 1 forms a U-shaped block structure; the depth of the mating groove 11 is greater than the distance from the end of the connector bend 02 away from the connector nut 01 to the connector nut 01.

[0039] The second docking part 112 is located at the end of the groove wall of the docking groove 11 near the bottom of the groove. The distance between the two groove walls of the docking groove 11 is equal to the diameter of the connector bend 02, so that the connector bend 02 is inserted into the second docking part 112. When using the cable explosion-proof pipe bend connector installation and disassembly tooling, the wrench head 1 drives the connector bend 02 to rotate together, and is not affected by the connector bend 02.

[0040] The first mating part 111 is located at the opening of the mating groove 11. The two opposite groove walls of the first mating part 111 are recessed in a direction away from the axis, so that the end of the second mating part 112 near the first mating part 111 forms a nut limiting surface 114. When the wrench head 1 is engaged with the connector nut 01, the first mating part 111 abuts against both sides of the connector nut 01, and the nut limiting surface 114 abuts against the end of the connector nut 01 near the connector bend 02, so as to realize the snap-fit ​​connection between the wrench head 1 and the connector nut 01.

[0041] The third mating part 113 is located on one side of the mating groove 11. The groove wall of the third mating part 113 is on the same horizontal plane as the groove wall of the first mating part 111, so that the end of the second mating part 112 near the third mating part 113 forms a raised limiting surface 115. The distance between the two groove walls of the third mating part 113 is equal to the diameter of the annular protrusion 03. When the first mating part 111 is engaged with the connector nut 01, the raised limiting surface 115 abuts against the annular protrusion 03, which can further limit the position of the wrench head 1. When using the cable explosion-proof pipe bend connector installation and disassembly tool for installation and disassembly, the rotation of the wrench head 1 is not affected by the annular protrusion 03.

[0042] Reference Figure 4The torque handle 2 is a cylinder, and one end of the torque handle 2 is provided with a mounting protrusion 21. The diameter of the mounting protrusion 21 is smaller than the diameter of the torque handle 2, and the circumference of the mounting protrusion 21 is provided with external threads. The bottom center of the mating groove 11 is provided with a threaded hole 12, and the axis of the threaded hole 12 is on the same straight line as the axis of the mating groove 11. The mounting protrusion 21 is threadedly connected to the threaded hole 12 to realize the detachable connection between the torque handle 2 and the wrench head 1.

[0043] The torque handle 2 has two locking surfaces 22 on its periphery near the mounting protrusion 21, which are arranged opposite to each other. The locking surfaces 22 are used to engage with the open-end wrench. When it is necessary to connect the torque handle 2 and the wrench head 1, the open-end wrench is simultaneously engaged on the two locking surfaces 22, and torque is applied to lock the torque handle 2 and the wrench head 1. There is a preload between the torque handle 2 and the wrench head 1, which effectively prevents loosening between them.

[0044] The implementation principle of the cable explosion-proof pipe bend joint installation and disassembly tool disclosed in this application embodiment is as follows: the wrench head 1 and the torque handle 2 are threadedly connected to form the cable explosion-proof pipe bend joint installation and disassembly tool; in use, the joint nut 01 is snapped into the first mating part 111, the joint bend 02 is inserted into the second mating part 112, and the annular protrusion 03 is inserted into the third mating part 113, and a force is applied to the torque handle 2 to realize the installation and disassembly of the cable explosion-proof pipe bend joint; the embodiment of this application is simple to operate, easy to use, highly efficient, and practical.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tooling for installing and disassembling a cable explosion-proof conduit bend joint, characterized in that, The device includes a wrench head (1) and a torque handle (2), which are detachably connected. The wrench head (1) has a mating groove (11), and the two opposite groove walls of the mating groove (11) are symmetrically provided with a first mating part (111), a second mating part (112) and a third mating part (113). The first mating part (111) is located at the opening of the mating groove (11) and is used to pass over the joint bend (02) along the axial direction of the cable explosion-proof pipe bend joint and snap-fit ​​with the joint nut (01). When the first mating part (111) is snap-fitted with the joint nut (01), the second mating part (112) is inserted into the joint bend (02), and the third mating part (113) is inserted into the annular protrusion (03).

2. The installation and disassembly fixture for an explosion-proof cable conduit bend as described in claim 1, characterized in that, The axis of the docking groove (11) is on the same straight line as the axis of the wrench head (1).

3. The installation and disassembly fixture for an explosion-proof cable conduit bend joint according to claim 2, characterized in that, The two opposing groove walls of the first mating part (111) are recessed in a direction away from the axis, and the distance between the two groove walls of the first mating part (111) is equal to the diameter of the joint nut (01).

4. The installation and disassembly fixture for an explosion-proof cable conduit bend as described in claim 3, characterized in that, The second docking part (112) is located at one end of the docking groove (11) near the bottom of the groove, and the distance between the two groove walls of the second docking part (112) is equal to the diameter of the joint bend (02).

5. The installation and disassembly fixture for an explosion-proof cable conduit bend joint according to claim 4, characterized in that, The end of the second docking part (112) near the first docking part (111) is provided as a nut limiting surface (114), which abuts against the joint nut (01).

6. The installation and disassembly fixture for an explosion-proof cable conduit bend joint according to claim 5, characterized in that, The two opposing groove walls of the third docking part (113) are recessed in a direction away from the axis, and the distance between the two groove walls of the third docking part (113) is equal to the diameter of the annular protrusion (03).

7. The installation and disassembly fixture for an explosion-proof cable conduit bend joint according to claim 6, characterized in that, The second docking part (112) is provided with a raised limiting surface (115) at one end near the third docking part (113), and the raised limiting surface (115) abuts against the annular protrusion (03).

8. The installation and disassembly fixture for an explosion-proof cable conduit bend joint according to claim 1, characterized in that, The bottom center of the docking groove (11) is provided with a threaded hole (12), and one end of the torque handle (2) is provided with an installation protrusion (21). The periphery of the installation protrusion (21) is provided with an external thread, and the wrench head (1) is threadedly connected to the installation protrusion (21).

9. The installation and disassembly fixture for an explosion-proof cable conduit bend joint according to claim 8, characterized in that, The torque handle (2) has a locking surface (22) on the periphery near the mounting protrusion (21). There are two locking surfaces (22), which are used to lock the torque handle (2) and the wrench head (1).

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