Special tool for bending cable protection pipe

Abstract

The utility model belongs to the technical field of metal pipe bending equipment, and particularly relates to a special tool for bending a cable protection pipe. The bending head comprises a front supporting part with a U-shaped groove and a rear rail part with a concave rail, the front supporting part is fixed to the front end of the rear rail part, a pipe inlet is formed in the connecting position of the front supporting part and the rear rail part, the U-shaped groove and the concave rail are arranged in a staggered and opposite opening mode, and the transverse section and the longitudinal section of the concave rail are both in an arc shape. Compared with the prior art, the cable protection pipe bending device has the advantages that through the structural design of the bending head, the front supporting part and the rear rail part are combined to assist in fixing and bending of a cable protection pipe, one person can conduct bending forming operation on the cable protection pipe conveniently, and construction efficiency is improved; the concave rail is integrally arc-shaped, so that the requirement of adjusting the bending degree in the field laying process is met; a semicircular rail is formed in the concave rail, the cable protection pipe cannot be shrunken during bending, the bending forming quality is high, and pipe waste caused by bending construction is avoided; and the device is portable and convenient for field construction.

Description

Technical Field

[0001] This utility model belongs to the technical field of metal pipe bending equipment, specifically relating to a special tool for bending cable protection pipes. Background Technology

[0002] Power cable protection pipes are metal protective pipes with a certain mechanical strength that are laid on the outer layer of cables to prevent them from being damaged.

[0003] During field cabling construction, when cable routing requires detours, the power cable protection conduit needs to be bent to a certain extent. The bending angle is not known in advance and must be bent on-site. However, power cable protection conduits are rigid and difficult to shape. Existing metal conduit bending equipment is usually bulky, consumes a lot of electricity, and is inconvenient to use during on-site laying. The current method involves 2-3 people working together to fix and hammer the power cable protection conduit with other tools to bend it. This method is not only inefficient and requires a lot of manpower, but it is also difficult to control the force, which can easily cause the conduit to collapse, making it impossible for the cable to pass through and resulting in waste of conduit materials. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a special tool for bending cable protection pipes.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A special tool for bending cable protection pipes includes: a bending head, the bending head includes a front support part with a U-shaped groove and a rear rail part with a concave rail, the front support part is fixed to the front end of the rear rail part and an inlet is provided at the connection between the two, the U-shaped groove and the concave rail are arranged in a staggered and opposite opening, and the transverse and longitudinal sections of the concave rail are both arc-shaped.

[0006] Furthermore, it also includes: a handle and a connector for fixing the bending head to the handle, the handle being mounted on the rear rail portion and facing away from the concave rail side.

[0007] Furthermore, a handle post is provided on the rear rail section, and a first through mounting hole is opened on the handle post; a second through mounting hole is opened on the handle body of the handle; the connector includes a perforated post and a positioning member installed at the end of the perforated post.

[0008] Furthermore, a support plate is fixedly provided between one side of the handle post and the front end of the rear rail, and a reinforcing rib connected to the rear rail is provided on the other side of the handle post.

[0009] Furthermore, the concave rail has a symmetrical structure.

[0010] Furthermore, the cross-section of the concave rail is semi-circular.

[0011] Furthermore, an upward-facing protective protrusion is provided on one side of the U-shaped groove on the front support, and the other side is connected to the rearward-facing side tail plate.

[0012] Furthermore, the top of the protective protrusion is arc-shaped or triangular.

[0013] Furthermore, the U-shaped groove has a flat surface in the middle.

[0014] Furthermore, a notch is designed near the inlet of the rear rail section.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the structural design of the bending head, the combination of the front support and the rear rail assists in fixing and bending the cable protection pipe, making it easier for one person to perform the bending and forming operation of the cable protection pipe, thus improving construction efficiency; the concave rail is arc-shaped as a whole, meeting the requirements for adjusting the degree of bending during on-site laying; the concave rail forms a semi-circular track inside, so the cable protection pipe will not collapse during bending, resulting in high bending quality and solving the problem of pipe waste caused by bending construction; the special tool for bending the cable protection pipe is detachable and assembleable, and has very good practical value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the bent head structure in this application;

[0017] Figure 2 This is a schematic diagram of the special tool structure for bending cable protection pipes in this application;

[0018] Figure 3 This is a rear view of the special tool used to bend the cable protection pipe in this application;

[0019] Figure 4 This is a schematic diagram of the installation of cable protection pipes during bending operations.

[0020] In the picture:

[0021] 1. Bending head, 2. Handle, 3. Connector

[0022] 101. Front support section; 102. Rear rail section; 103. Inlet pipe; 104. U-shaped groove; 105. Protective protrusion; 106. Side tail plate; 107. Recessed rail; 108. Handle post; 109. Support plate; 110. Reinforcing rib; 111. First mounting hole.

[0023] 301. Perforated post; 302. Positioning component. Detailed Implementation

[0024] To facilitate understanding of this utility model, it will be described in more detail below with reference to the accompanying drawings and specific embodiments. However, this utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0025] Example 1: Refer to Figure 1-4 Understanding a special tool for bending cable protection pipes, comprising: a bending head 1, a handle 2, and a connector 3 for fixing the bending head 1 and the handle 2. The bending head 1 has a front support portion 101 with a U-shaped groove 104 and a rear rail portion 102 with a concave rail 107. The front support portion 101 is fixed to the front end of the rear rail portion 102, and an inlet 103 for inserting the protection pipe is formed at the connection between the two. The U-shaped groove 104 and the concave rail 107 are arranged in a staggered, facing-to-facing manner. The transverse and longitudinal sections of the concave rail 107 are both arc-shaped. The handle 2 can be made of Φ20 galvanized steel pipe. The handle 2 is installed on the rear rail portion 102 and faces away from the concave rail 107. The inlet 103 is a space formed by the front support portion 101 and the rear rail portion 102 not being connected, thus facilitating the insertion of the cable protection pipe.

[0026] Usage: Insert the cable protection pipe into the U-shaped groove 104, which has staggered openings facing each other, through the inlet 103. Together with the concave rail 107, they form a bending working area. Adjust the position of the tool according to the bending requirements on site. At this point, only the pipe body near the inlet 103 contacts the inner wall of the concave rail 107. Then, hold the pipe body with one hand and the handle 2 with the other, and press the handle 2 backward. The front support 101 rises upward, and the rear rail 102 presses backward, causing the concave rail 107 to fit against the rear section of the pipe body, resulting in bending deformation of the rear section of the pipe body. Gradually proceed until the required degree of bending is achieved. Through the structural design of the bending head 1, the combination of the front support 101 and the rear rail 102 assists in fixing and bending the cable protection pipe, making it easy for one person to perform the cable protection pipe bending operation and improving construction efficiency. The concave rail 107 is arc-shaped, easy to move, and meets the requirements for adjusting the degree of bending during on-site laying. When used in combination with a handle, it reduces the difficulty of bending and shaping cable protection pipes on site, is lightweight and easy to carry, and is convenient for on-site construction.

[0027] In one embodiment, a hollow handle post 108 is provided on the rear rail portion 102, and a through first mounting hole 111 is formed on the handle post 108; a through second mounting hole is formed on the handle body of the handle 2, and the diameter of the second mounting hole is the same as the diameter of the first mounting hole 111; the connecting member 3 includes a perforated post 301 and a positioning member 302 installed at the end of the perforated post 301. During installation, the handle 2 is inserted into the handle post 108, the perforated post 301 passes through the first mounting hole 111 and the second mounting hole, the positioning member 302 is used for end fastening, and the handle 2 is firmly installed on the bending head 1. The handle 2 can extend the lever arm for the worker to apply force, thereby saving effort. However, if it is too long, it may reduce the convenience of construction, so the length of the handle 2 should not be too long. The perforated post 301 can be a hexagonal head bolt, a double-ended stud, or a bolt with holes, and the positioning member 302 can be a fastening nut or a cotter pin, which together serve to securely install the handle 2. The detachable modular structure allows for easy disassembly and portability.

[0028] In one embodiment, a support plate 109 is fixedly provided between one side of the connecting post 108 and the front end of the rear rail portion 102, and a reinforcing rib 110 connected to the rear rail portion 102 is provided on the other side of the connecting post 108. This improves the overall strength of the bending head 1 and makes it more durable.

[0029] In one embodiment, the recessed rail 107 has a symmetrical structure, which facilitates molding.

[0030] In one embodiment, the concave rail 107 has a semi-circular cross-section. The semi-circular track formed inside the concave rail 107 prevents the cable protection pipe from collapsing during bending, resulting in high-quality bending and eliminating material waste caused by bending construction.

[0031] In one embodiment, an upward-facing protective protrusion 105 is provided on one side of the U-shaped groove 104 on the front support portion 101, and a rearward-facing side tail plate 106 is connected to the other side. Both the protective protrusion 105 and the side tail plate 106 have a limiting function. The protective protrusion 105 is located on the opening side, limiting the deviation of the tube after it enters; the side tail plate 106 blocks the opposite side of the opening and is also used to connect with the rear rail portion 102, which can be welded. The middle of the U-shaped groove 104 is flat, and the front support portion 101 mainly plays a supporting role and does not affect the bending of the rear rail portion 102.

[0032] In one embodiment, combined Figure 1 , 2 As understood in section 4, the bottom of the protective protrusion 105 is arc-shaped or triangular. This structure, with its low edges facilitating the insertion of the tube and a relatively high center, provides better blocking and limiting effects, resulting in high ease of use and enhanced safety.

[0033] In one embodiment, combined Figure 2 and Figure 4 It is understood that the rear rail portion 102 has a notch design near the inlet 103. The inlet 103 is enlarged at an angle on one side of the rear rail portion 102 to facilitate the insertion of the tube. In conjunction with the arc-shaped or triangular protective protrusion 105, the cable protection tube that needs to be bent can be easily installed in one go.

[0034] The special tool structure for bending cable protection pipes in this application has the following main advantages: it is lightweight and portable, suitable for laying cables on site; it is easy for one person to operate when assisting in bending, which can save manpower; the structural design is reasonable, which reduces the difficulty of bending and forming, and solves the problem of bending and flattening in traditional methods, thereby improving construction efficiency and quality.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A special tool for bending cable protection pipes, characterized in that, include: The bending head includes a front support with a U-shaped groove and a rear rail with a concave rail. The front support is fixed to the front end of the rear rail and has an inlet at the connection between the two. The U-shaped groove and the concave rail are arranged in a staggered and opposite manner. The transverse and longitudinal sections of the concave rail are both arc-shaped.

2. The special tool for bending cable protection pipes according to claim 1, characterized in that, Also includes: A handle and a connector for fixing the bending head to the handle, the handle being mounted on the rear rail portion and facing away from the concave rail side.

3. The special tool for bending cable protection pipes according to claim 2, characterized in that, The rear rail is provided with a handle post, and the handle post has a through first mounting hole; the handle body of the handle has a through second mounting hole; the connector includes a perforated post and a positioning member installed at the end of the perforated post.

4. The special tool for bending cable protection pipes according to claim 3, characterized in that, A support plate is fixed between one side of the handle post and the front end of the rear rail, and a reinforcing rib connected to the rear rail is provided on the other side of the handle post.

5. The special tool for bending cable protection pipes according to claim 1, characterized in that, The concave rail has a symmetrical structure.

6. The special tool for bending cable protection pipes according to claim 5, characterized in that, The concave rail has a semi-circular cross-section.

7. The special tool for bending cable protection pipes according to claim 1, characterized in that, The front support has an upward-facing protective protrusion on one side of the U-shaped groove, and a rearward-facing side tail plate on the other side.

8. The special tool for bending cable protection pipes according to claim 7, characterized in that, The top of the protective protrusion is rounded or triangular.

9. The special tool for bending cable protection pipes according to claim 1, characterized in that, The U-shaped groove has a flat surface in the middle.

10. The special tool for bending cable protection pipes according to claim 1, characterized in that, The rear rail section has a notch design near the inlet.

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