Cable protection pipe

Abstract

The utility model discloses a cable protection tube, comprising a protection tube body which is omega-shaped and is made of elastic metal; the sealing strip is installed in the opening of the protection pipe body, the sealing strip is in an I shape, the left end and the right end of the sealing strip are both provided with cambered surfaces, and the inner wall of the opening in the front portion of the protection pipe body is matched with the cambered surfaces in an inserted mode and matched with the cambered surfaces in radian. The shape of the protection tube body is set to be omega-shaped, so that the two ends of the omega-shaped protection tube body are opened and kept by using a tool, then the protected cable bundle is completely coated, then the sealing strip is placed at the opening space of the protection tube body, finally the tool is removed, and the sealing strip is subjected to the elastic acting force of the material of the protection tube body, so that the cable bundle is sealed. The opened opening space at the two ends of the protection pipe body is contracted and closed, the rubber sealing strip is pressed and plays a sealing role, and finally, the protection pipe body is fixed at a firm position, so that the whole structure is simple, the use is convenient, the production cost is low, the cable protection device is suitable for popularization, and the cable can be effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of shipbuilding, in particular to a cable protection tube. Background Art

[0002] The cable protection tubes used on modern ships are usually seamless steel tubes. The cable protection tubes need to be pre-installed on the cable path to be protected. After the cables are passed through them, the cable protection tubes can provide mechanical protection for the cables. However, if you want to add cable protection tubes somewhere after the cables are laid, it will be a huge project. You need to extract all the laid cables, install the newly added cable protection tubes, and then re-lay the cables.

[0003] Chinese patent document No. CN202564872U proposes a "cable protection tube". In this technical solution, the cable protection tube is composed of two semicircular tubes, and screws are arranged between the cable protection tubes. The above protection tube solves the problem that the cable does not need to be re-extracted when adding a cable protection tube later, but the installation of the protection tube is still a bit cumbersome. When the cable pipeline is long, the installation workload is large, and the watertight performance of the cable protection tube is poor.

[0004] Another Chinese patent document No. CN2561051Y proposes "a composite material outdoor cable protective cover". In this technical solution, the protective tube has a certain wall thickness and can be bent. A pair of snap fasteners are provided at the joints of the two ends of the protective tube after it is bent and opened to lock it. The installation and construction of the above-mentioned protective cover is relatively simple, but the manufacturing is relatively complicated and the production cost is relatively high. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a cable protection tube to solve the problems raised in the above background technology.

[0006] In order to achieve the above objectives, the utility model provides a cable protection tube, comprising:

[0007] A protective tube body, the protective tube body is in an Ω shape and is made of elastic metal;

[0008] A sealing strip is installed in the opening of the protective tube body, the sealing strip is in an I-shape, both left and right ends of the sealing strip are provided with arc surfaces, and the inner wall of the front opening of the protective tube body is plugged into and matched with the arc surface and the curvature matches.

[0009] Preferably, end plates are provided on both left and right sides of the front end of the protection tube body, and fixing holes are opened at the front ends of the end plates.

[0010] Preferably, a pulling assembly is fixedly installed at the rear end of the protective tube body, and the pulling assembly includes a box body, a knob, a first pull rope, a rotating shaft, a roller, a ratchet, a pawl, a second pull rope and a spring. The box body is fixedly connected to the protective tube body, and there are two first pull ropes which are respectively fixed at the rear ends of the two end plates, and the ends of the first pull ropes can be movably penetrated into the interior of the box body.

[0011] Preferably, the shaft bearing is connected to the inside of the box body, the upper end of the shaft passes through the box body and is fixed to the knob, the roller is fixed to the outside of the shaft, and the end of the first pull rope is wound around the roller.

[0012] Preferably, the ratchet is located above the roller and fixed outside the rotating shaft, the pawl is connected behind the ratchet, a shaft is fixed to the upper end of the pawl, the upper end of the shaft is connected to the top bearing of the box body, and the spring is connected between the rear end of the pawl and the inner wall of the box body.

[0013] Preferably, the second pull rope is fixed at the rear end of the ratchet, the second pull rope is located inside the spring, and the end of the second pull rope passes through the box body and is fixed with a pull head.

[0014] The utility model provides a cable protection tube, which has the following beneficial effects: the cable protection tube is formed by setting the shape of the protection tube body into an Ω shape, so that the two ends of the Ω-shaped protection tube body are stretched and maintained by using a tool, and then the protected cable bundle is completely covered, and then a sealing strip is placed in the open space of the protection tube body, and finally the tool is removed. Under the elastic force of the protection tube body material, the open spaces stretched at the two ends of the protection tube body are shrunk and closed, and the rubber sealing strip is pressed and seals, and finally the protection tube body is fixed in a solid place. In this way, the whole structure is simple, easy to use, low in production cost, and suitable for promotion, and can effectively protect the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of Embodiment 1 of the present utility model;

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of disassembling the protective tube body and sealing strip;

[0017] Figure 3 This is a schematic diagram of the second embodiment of the utility model;

[0018] Figure 4 For this utility model Figure 3 Schematic diagram of a top view cross section of a pulling component.

[0019] In the figure: 1-protective tube body, 11-end plate, 12-fixing hole, 2-sealing strip, 21-arc surface, 3-pulling component, 31-box body, 32-knob, 33-first pull rope, 34-rotating shaft, 35-roller, 36-ratchet, 37-pawl, 38-second pull rope, 39-spring. DETAILED DESCRIPTION

[0020] 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.

[0021] For example, see Figure 1-Figure 2 , a cable protection tube, comprising:

[0022] The protective tube body 1 is provided with end plates 11 on both sides of the front end of the protective tube body 1. The front end of the end plate 11 is provided with a fixing hole 12. Because the protective tube body 1 is made of elastic metal and is in an Ω shape with a thickness of 2 mm, and the two ends of the opening are curved and abut against each other, a tool can be used to stretch and bend the two ends of the front opening of the Ω-shaped protective tube body 1 and maintain it, and then the protected cable bundle is completely covered, and the inner diameter of the protective tube body 1 matches the outer diameter of the cable drum, so that the cable drum can be inserted into the bottom of the protective tube body 1. When the tool is removed, the protective tube body 1 returns to its original shape due to its own elasticity, and then the protective tube body 1 can be fixed to a solid place by cooperating with the fixing piece through the fixing hole 12 in front of the end plate 11;

[0023] A sealing strip 2 is installed in the opening of the protective tube body 1. The sealing strip 2 is in an I-shape. Both left and right ends of the sealing strip 2 are provided with arc surfaces 21. The inner wall of the front opening of the protective tube body 1 is plugged into the arc surface 21 and the curvature matches. The sealing strip 2 is made of rubber. After the protected cable bundle is completely covered, the sealing strip 2 can be placed in the opening space of the protective tube body 1. When the tool is removed, the elastic force of the material of the protective tube body 1 causes the opening spaces at both ends of the protective tube body 1 to shrink and close together, pressing the rubber sealing strip 2 and sealing it. Finally, the protective tube body 1 is fixed. In this way, the entire structure is simple, easy to use, low in production cost, suitable for promotion, and can effectively protect the cables.

[0024] The installation steps are as follows:

[0025] S1. Prepare an appropriate protective tube body 1 according to the size of the cable bundle to be protected. The sum of the cross-sectional areas of the cable bundles shall not exceed 40% of the cross-sectional area of ​​the protective tube body 1.

[0026] S2. The two ends of the protective tube body 1 are curved and abut against each other. Use a tool to open and hold the two ends of the Ω-shaped protective tube body 1, so that the protective tube body 1 completely covers the protected cable bundle through the opened opening space;

[0027] S3, aligning the rubber sealing strip 2 with the protection tube body 1 and placing it in the opening space at one end of the protection tube body 1;

[0028] S4, the tool is removed, and due to the elastic force of the material of the Ω-shaped protective tube body 1, the open spaces at both ends of the protective tube body 1 shrink and close together, pressing the rubber sealing strip 2 tightly and playing a sealing role;

[0029] S5. Fix the protection tube body 1 to a solid place through the fixing holes 12 at both ends of the protection tube body 1.

[0030] For example 2, please refer to Figure 3-Figure 4 The rear end of the protection tube body 1 is fixedly installed with a pulling assembly 3, and the pulling assembly 3 includes a box body 31, a knob 32, a first pull rope 33, a rotating shaft 34, a roller 35, a ratchet 36, a pawl 37, a second pull rope 38 and a spring 39. The box body 31 is fixedly connected to the protection tube body 1. There are two first pull ropes 33 and they are respectively fixed to the rear ends of the two end plates 11. The end of the first pull rope 33 is movable and penetrates into the box body 31. The rotating shaft 34 is connected to the box body 31 by a bearing. The upper end of the first pull rope 33 passes through the box body 31 and is fixed to the knob 32. The roller 35 is fixed to the outside of the rotating shaft 34. The end of the first pull rope 33 is wound around the roller 35. By rotating the knob 32 counterclockwise, the knob 32 drives the rotating shaft 34 to rotate counterclockwise, and the rotating shaft 34 drives the roller 35 to rotate counterclockwise. The roller 35 will reel in the two first pull ropes 33. By pulling the two end plates 11 with the two first pull ropes 33, the opening of the protective tube body 1 can be opened. In this way, no additional tools are needed to open the opening of the protective tube body 1.

[0031] The ratchet 36 is located above the winding roller 35 and fixed outside the rotating shaft 34. The pawl 37 is connected to the rear of the ratchet 36. A shaft is fixed to the upper end of the pawl 37. The upper end of the shaft is connected to the top bearing in the box body 31. The spring 39 is connected between the rear end of the pawl 37 and the inner wall of the box body 31. The pawl 37 prevents the ratchet 36 from rotating clockwise, but does not prevent the ratchet 36 from rotating counterclockwise. In this way, when the rotating shaft 34 drives the winding roller 35 to rotate counterclockwise, it also drives the ratchet 36 to rotate counterclockwise. When the knob 32 is no longer rotated, the pawl 37 prevents the ratchet 36 from rotating clockwise, so as to self-lock the rotating shaft 34, so as to ensure that the opening of the protective tube 1 can be maintained after being opened;

[0032] The second pull rope 38 is fixed at the rear end of the pawl 37. The second pull rope 38 is located on the inner side of the spring 39. The end of the second pull rope 38 passes through the box body 31 and is fixed with a pull head. When the protective tube body 1 needs to restore its shape, the pull head is pulled, and the pull head drives the second pull rope 38 to drive the pawl 37, so that the pawl 37 is no longer connected to the ratchet 36. At this time, the ratchet 36 can rotate clockwise and lose the pulling force of the first pull rope 33. In this way, the protective tube body 1 can be restored due to its own elasticity, and the operation is more convenient.

[0033] The installation steps are as follows:

[0034] S1. Prepare an appropriate protective tube body 1 according to the size of the cable bundle to be protected. The sum of the cross-sectional areas of the cable bundles shall not exceed 40% of the cross-sectional area of ​​the protective tube body 1.

[0035] S2. The two ends of the protection tube body 1 are curved and abut against each other. By turning the knob 32 counterclockwise, the roller 35 reels the two first pull ropes 33. By pulling the two end plates 11 through the two first pull ropes 33, the two ends of the opening of the protection tube body 1 can be opened and maintained, and the protection tube body 1 can completely cover the protected cable bundle through the opened opening space;

[0036] S3, aligning the rubber sealing strip 2 with the protection tube body 1 and placing it in the opening space at one end of the protection tube body 1;

[0037] S4, pull the pull head, the pull head drives the second pull rope 38 to drive the pawl 37, so that the pawl 37 is no longer connected to the ratchet 36, and after losing the self-locking, the pulling force of the first pull rope 33 is lost, and the elastic force of the material of the Ω-shaped protective tube body 1 is applied, and the open spaces at both ends of the protective tube body 1 are shrunk and closed, pressing the rubber sealing strip 2 and playing a sealing role;

[0038] S5. Fix the protection tube body 1 to a solid place through the fixing holes 12 at both ends of the protection tube body 1.

[0039] 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 cable protection tube, characterized in that: include: A protective tube body (1), the protective tube body (1) is in an Ω shape and is made of elastic metal; A sealing strip (2) is installed in the opening of the protective tube body (1), the sealing strip (2) is in an I-shape, both left and right ends of the sealing strip (2) are provided with arc surfaces (21), and the inner wall of the front opening of the protective tube body (1) is plugged into and matched with the arc surface (21), and the arcs match.

2. A cable protection tube according to claim 1, characterized in that: The protection tube body (1) is provided with end plates (11) on both the left and right sides of the front end, and the front end of the end plate (11) is provided with a fixing hole (12).

3. A cable protection tube according to claim 2, characterized in that: A pulling assembly (3) is fixedly installed at the rear end of the protective tube body (1), and the pulling assembly (3) comprises a box body (31), a knob (32), a first pull rope (33), a rotating shaft (34), a roller (35), a ratchet (36), a pawl (37), a second pull rope (38) and a spring (39). The box body (31) is fixedly connected to the protective tube body (1), and there are two first pull ropes (33) which are respectively fixed at the rear ends of the two end plates (11), and the ends of the first pull ropes (33) are movable and penetrate into the interior of the box body (31).

4. A cable protection tube according to claim 3, characterized in that: The bearing of the rotating shaft (34) is connected to the inside of the box body (31); the upper end of the rotating shaft (34) passes through the box body (31) and is fixed to the knob (32); the roller (35) is fixed to the outside of the rotating shaft (34); and the end of the first pull rope (33) is wound around the roller (35).

5. A cable protection tube according to claim 4, characterized in that: The ratchet (36) is located above the roller (35) and fixed on the outside of the rotating shaft (34); the pawl (37) is connected to the rear of the ratchet (36); a shaft is fixed to the upper end of the pawl (37); the upper end of the shaft is connected to the top bearing in the box body (31); and the spring (39) is connected between the rear end of the pawl (37) and the inner wall of the box body (31).

6. A cable protection tube according to claim 5, characterized in that: The second pull rope (38) is fixed to the rear end of the ratchet (37), the second pull rope (38) is located inside the spring (39), and the end of the second pull rope (38) passes through the box body (31) and is fixed with a pull head.

Images