Novel MPP power cable protection pipe

Abstract

The utility model provides a novel MPP power cable protection pipe, and belongs to the technical field of power cable protection pipes. Comprising a protection pipe sleeve; the fixing part is positioned in the protection pipe sleeve and is used for tightening and fixing the cable; the guide part is mounted in the protection pipe sleeve and is used for driving the fixing part to move in the protection pipe sleeve; and the buffer part is mounted on the guide part and is used for relieving the impact of external force on the fixing part so as to enhance the effect of tightening and fixing the cable by the fixing part. According to the utility model, through the arrangement of the guide ring, after the elastic binding ring binds and fixes a cable, the guide ring is driven by the guide column and the pulley to slide in the protection pipe sleeve through the sliding groove, so that the cable can better penetrate through the pipe, and meanwhile, when the straight line where the circle center of the guide ring is located and the straight line where the circle center of the protection pipe sleeve is located are arranged on the same straight line, the cable can pass through the pipe. After a plurality of groups of protection pipelines are mutually welded, the cable can be kept at a stable height, and voltage instability of the cable is prevented.

Description

Technical Field

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

[0002] MPP power cable protection pipe, also known as MPP cable pipe or MPP cable protection pipe, is a pipe system specially used to protect power cables. It is mainly made of modified polypropylene (MPP) as the main raw material through a specific production process. MPP power cable protection pipe has many superior performance characteristics, such as corrosion resistance, high temperature resistance, light weight, long service life, etc.

[0003] The existing patent publication number is CN217824092U, and the publication date is November 15, 2022. The patent name is an MPP power cable protection tube that is convenient for threading. The protective tube discloses a solution that facilitates the cable to pass through the protective cover. Specifically, two sets of roller structures are added to the inner wall of the protective cover, so that the cable can pass through the protective cover conveniently under the drive of the rollers.

[0004] In the process of auxiliary cable threading, this solution fixes the cable through two sets of upper and lower fixing components. When the protective tube is impacted by external force, the cable cannot remain stable, causing the cable to lose fixation, thereby causing the voltage conducted by the cable to be unstable and causing damage to the cable. Therefore, this application provides a new type of MPP power cable protection tube to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a new type of MPP power cable protection tube to solve the problem that the existing cable is fixed by two sets of upper and lower fixing components. When the protection tube is impacted by external force, the cable cannot remain stable, causing the cable to lose fixation, thereby causing the voltage conducted by the cable to be unstable and causing damage to the cable.

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

[0007] A novel MPP power cable protection tube comprises: a protection tube sleeve; a fixing part located in the protection tube sleeve and used for tightening and fixing the cable; a guide part installed in the protection tube sleeve and used for driving the fixing part to move inside the protection tube sleeve; and a buffer part installed on the guide part and used for mitigating the impact of external force on the fixing part, so as to enhance the effect of the fixing part on tightening and fixing the cable.

[0008] Preferably, the guide part includes: a guide ring located in the protective sleeve; a plurality of groups of guide columns, one end of which is connected to the inner wall of the protective sleeve and the other end is connected to the outer wall of the guide ring; a pulley installed on the guide column and used to drive the guide column to move inside the protective sleeve.

[0009] Preferably, the fixing part includes: an elastic ring installed in the guide ring for fixing the cable; a plurality of groups of springs evenly installed on the inner wall of the guide ring, one end of each spring is connected to the buffer part, and the other end of each spring is connected to the elastic ring to fix the elastic ring inside the guide ring.

[0010] Preferably, the straight line where the center of the elastic bundle ring is located is on the same straight line as the straight line where the center of the protective tube sleeve is located, so that when multiple groups of protective tube sleeves are connected, the cables always maintain the same height.

[0011] Preferably, it also includes: a plurality of groups of slide grooves, which are opened on the inner wall of the protective tube sleeve and are arranged so that each group of guide columns corresponds to a group of slide grooves, so that the pulley slides in the slide groove, thereby moving the guide part along the direction of the slide groove.

[0012] Preferably, it also includes: a limiting groove, which is opened in the sliding groove and located at one end of the protective sleeve, and is used for the pulley to enter the limiting groove when the guide part moves to one end of the protective sleeve to stop the guide part from moving.

[0013] Preferably, it also includes: a heat dissipation portion, which is provided on the protective tube sleeve and is used to assist the cable in heat dissipation.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects:

[0015] In the above scheme, by setting a guide ring, after the elastic tie ring tightens and fixes the cable, the guide ring slides inside the protective tube sleeve through the slide groove under the drive of the guide column and the pulley, so that the cable can be better passed through the tube. At the same time, when the straight line where the center of the guide ring is located and the straight line where the center of the protective tube sleeve is located are set on the same straight line, it is convenient for the cable to maintain a stable height after multiple groups of protective pipes are welded to each other, thereby preventing the voltage of the cable from being unstable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

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

[0018] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0019] Figure 3 It is a front view of the utility model;

[0020] Figure 4 It is a structural schematic diagram of some components in the utility model.

[0021] [reference numerals]

[0022] 1. Protective sleeve; 2. Buffer part; 3. Guide ring; 4. Guide column; 5. Pulley; 6. Elastic collar; 7. Spring; 8. Slide groove; 9. Limiting groove; 10. Heat dissipation part.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0024] The following is a detailed description of a new MPP power cable protection tube provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0025] Embodiment 1: Figures 1 to 4 As shown, an embodiment of the utility model provides a new type of MPP power cable protection tube, comprising: a protection tube sleeve 1; a fixing part, located in the protection tube sleeve 1, for tightening and fixing the cable; a guide part, installed in the protection tube sleeve 1, for driving the fixing part to move inside the protection tube sleeve 1; a buffer part 2, installed on the guide part, for mitigating the impact of external force on the fixing part, so as to enhance the effect of the fixing part on tightening and fixing the cable; the buffer part 2 adopts a plastic cushion, or a rubber cushion, and is used to reduce the impact of the cable in the elastic binder ring 6 through the buffer part 2 when an external force impacts the guide wheel, so that the cable will not fall off the elastic binder ring 6, thereby ensuring the stability of the cable voltage.

[0026] like Figure 1 , Figure 3 and Figure 4 As shown, the guide part includes: a guide ring 3, located in the protective tube sleeve 1; a plurality of groups of guide columns 4, one end of which is connected to the inner wall of the protective tube sleeve 1, and the other end is connected to the outer wall of the guide ring 3; a pulley 5, installed on the guide column 4, used to drive the guide column 4 to move inside the protective tube sleeve 1.

[0027] like Figure 1 , Figure 3 and Figure 4As shown, the fixing part includes: an elastic clamp ring 6 installed in the guide ring 3 for fixing the cable; a plurality of groups of springs 7 evenly installed on the inner wall of the guide ring 3, one end of each of which is connected to the buffer part 2, and the other end of each of which is connected to the elastic clamp ring 6, so that the elastic clamp ring 6 is fixed inside the guide ring 3.

[0028] Embodiment 2: The straight line where the center of the elastic cuff 6 is located is on the same straight line as the straight line where the center of the protective tube sleeve 1 is located, so that when multiple sets of protective tube sleeves 1 are connected, the cable always maintains the same height; the straight line where the center of the elastic cuff 6 is located is on the same straight line as the straight line where the center of the protective tube sleeve 1 is located, so that the entire cable is always kept on the same straight line, preventing the required length of the cable from increasing due to different cable setting heights, and preventing the cable from directly contacting the protective tube sleeve 1, thereby causing the protective tube sleeve 1 to contact the current of the cable, thereby reducing the service life of the protective tube sleeve 1.

[0029] like Figure 1 and Figure 2 As shown, it also includes: a plurality of groups of slide grooves 8, which are opened on the inner wall of the protective tube sleeve 1, and are arranged so that each group of guide columns 4 corresponds to a group of slide grooves 8, so that the pulley 5 slides in the slide groove 8, thereby moving the guide part along the direction of the slide groove 8.

[0030] like Figure 2 As shown, it also includes: a limiting groove 9, which is opened in the sliding groove 8 and located at one end of the protective sleeve 1, and is used for the pulley 5 to enter the limiting groove 9 when the guide part moves to one end of the protective sleeve 1, so that the guide part stops moving.

[0031] like Figure 1 and Figure 2 As shown, it also includes: a heat dissipation part 10, which is opened on the protective tube sleeve 1 and is used to assist the cable in dissipating heat; the heat dissipation part 10 mainly adopts heat dissipation holes to dissipate heat, and a ventilation device is installed in the protective tube sleeve 1. The ventilation device is a commonly used existing technology and will not be described in detail here.

[0032] The technical solution provided by the utility model is that when installing the cable, the protective tube is first installed on the fixed support frame, and then the guide part is moved to the side away from the limit groove 9, and the cable is laid from the side of the limit groove 9 to the side close to the limit groove 9, and the cable passes through the elastic cinch ring 6. The cable diameter is larger than the diameter of the elastic cinch ring 6. By squeezing the spring 7, the elastic cinch ring 6 tightens and fixes the cable, and then pushes the cable, and the guide column 4 and the guide ring 3 are driven by the pulley 5 to move along the slide groove 8 in the direction of the limit groove 9, and move to the pulley 5 Enter the limit groove 9. The guide column 4 and the guide ring 3 stop moving, and the cable is pulled from the side of the limit groove 9 to move to the next section of the protective cover. At this time, the cable tube installation is completed; at the same time, when the cable needs to be replaced, it is only necessary to pull the cable from the source to complete the cable disassembly, and then lift the guide wheel to release the pulley 5 from the limit groove 9, and then move the guide part back to the initial position for the convenience of next use.

[0033] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A new type of MPP power cable protection tube, characterized in that: include: Protective sleeve (1); A fixing portion, located in the protective tube sleeve (1), used for tightening and fixing the cable; A guide portion, installed in the protective tube sleeve (1), and used to drive the fixing portion to move inside the protective tube sleeve (1); The buffer part (2) is installed on the guide part and is used to reduce the impact of external force on the fixing part, so as to enhance the effect of the fixing part on tightening and fixing the cable; The guide portion comprises: A guide ring (3) is located in the protective tube sleeve (1); A plurality of groups of guide posts (4), one end of each of which is connected to the inner wall of the protective sleeve (1), and the other end of each of which is connected to the outer wall of the guide ring (3); A pulley (5) is mounted on the guide column (4) and is used to drive the guide column (4) to move inside the protective sleeve (1); The fixing portion comprises: An elastic collar (6) is installed in the guide ring (3) and is used to fix the cable; A plurality of groups of springs (7) are evenly mounted on the inner wall of the guide ring (3), one end of each group of springs is connected to the buffer portion (2), and the other end of each group of springs is connected to the elastic collar (6), so that the elastic collar (6) is fixed inside the guide ring (3); The straight line where the center of the elastic collar (6) is located is on the same straight line as the straight line where the center of the protective sleeve (1) is located, so that when multiple sets of protective sleeves (1) are connected, the cables always maintain the same height.

2. The protective tube according to claim 1, characterized in that: Also includes: A plurality of groups of slide grooves (8) are provided on the inner wall of the protective sleeve (1), and are arranged so that each group of guide columns (4) corresponds to a group of slide grooves (8), so that the pulley (5) slides in the slide grooves (8), thereby causing the guide part to move along the direction of the slide grooves (8).

3. The protection tube according to claim 2, characterized in that: Also includes: The limiting groove (9) is formed in the slide groove (8) and is located at one end of the protective sleeve (1). When the guide part moves to the end of the protective sleeve (1), the pulley (5) enters the limiting groove (9) to stop the guide part from moving.

4. The protection tube according to claim 1, characterized in that: Also includes: The heat dissipation portion (10) is provided on the protective tube sleeve (1) and is used to assist the cable in heat dissipation.

Images