Impact-resistant power cable protection tube

Abstract

The utility model relates to cable protection pipe technical field especially, it relates to a kind of impact-resistant power cable protection pipe.The utility model provides a kind of impact-resistant power cable protection pipe, solve the technical problem of complex structure, maintenance difficulty of power cable protection pipe in prior art.A kind of impact-resistant power cable protection pipe, including inner tube;Inner protection pipe, the inner protection pipe is set to the outer of the inner tube;Outer protection pipe, the outer protection pipe is set to the outer of the inner protection pipe;And buffer, the buffer is between outer protection pipe and the inner protection pipe;By setting inner protection pipe and outer protection pipe, and, buffer is set between inner protection pipe and outer protection pipe, inner tube is set in inner protection pipe, and power cable can be installed in inner tube.Buffer is fixed by inner protection pipe and outer protection pipe, so that buffer does not need to set independent fixed structure, simplify the structure of power cable protection pipe, reduce the use cost of power cable protection pipe.

Description

Technical Field

[0001] This utility model relates to the field of cable protection pipe technology, and in particular to an impact-resistant power cable protection pipe. Background Technology

[0002] Cable protection pipes are metal or non-metal protective pipes with a certain mechanical strength, laid on the outer layer of cables to prevent them from being damaged.

[0003] To better protect cables, existing cable protection conduits typically incorporate a buffer structure inside or outside the conduit to protect the cable when the conduit is subjected to impact. Current technology often uses springs as this buffer structure, requiring springs to be evenly distributed inside or outside the conduit. Each spring is fixed to the conduit using a spring seat or similar structure. This buffer structure is very complex, resulting in high operating costs and difficult maintenance for the cable protection conduit.

[0004] Therefore, existing power cable protection pipes suffer from technical problems such as complex structure and difficult maintenance. Summary of the Invention

[0005] This utility model provides an impact-resistant power cable protection pipe, which solves the technical problems of complex structure and difficult maintenance of existing power cable protection pipes.

[0006] Some implementation schemes for solving the above-mentioned technical problems include: An impact-resistant power cable protection pipe, comprising an inner tube; An inner protective tube is disposed outside the inner tube; An outer protective tube is disposed outside the inner protective tube; A buffer, wherein the buffer is located between the outer protective tube and the inner protective tube; The inner protective tube includes an upper tube and a lower tube, the upper tube being inserted into the lower tube, and an inner splicing seam being formed between the upper tube and the lower tube. The outer protective tube includes an upper tube portion and a lower tube portion, and an outer splicing seam being formed between the upper tube portion and the lower tube portion. Both the inner splicing seam and the outer splicing seam are covered by the buffer.

[0007] Preferably, the inner splicing seam is provided correspondingly to the outer splicing seam.

[0008] Preferably, both the inner and outer splicing seams are horizontally arranged.

[0009] Preferably, there are multiple buffers, which are evenly arranged along the circumference of the inner protective tube, wherein two buffers respectively cover the inner splice seam and the outer splice seam.

[0010] Preferably, the inner tube includes a first half and a second half, both of which are arc-shaped. The first half is inserted into the second half, and the inner protective tube is provided outside the inner tube by means of elastic deformation interference fit.

[0011] Preferably, the first half is provided with an extension piece extending to the second half, the extension piece being an integral structure with the first half, and the second half being provided with a notch that mates with the extension piece.

[0012] Preferably, the upper tube body is provided with a splicing groove, and the lower tube body is provided with a splicing ridge that mates with the splicing groove. The splicing ridge is installed in the splicing groove by means of elastic deformation.

[0013] Preferably, the splicing edge and the lower tube body are an integral structure, and the cross-sectional shape of the splicing edge is an arc shape larger than a semicircle.

[0014] Preferably, the upper tube is provided with a insert, the lower tube is provided with a slot that mates with the insert, the insert and the upper tube are an integral structure, and the outer protective tube is provided with a weight-reducing groove that reduces the weight of the outer protective tube, the weight-reducing groove passing through the outer protective tube.

[0015] Preferably, the buffer is installed between the inner protective tube and the outer protective tube using an elastic deformation interference fit. The impact-resistant power cable protection tube also includes end caps, of which there are two. The two end caps are respectively located at both ends of the outer protective tube. The end caps are fixed to the outer protective tube by screws. The end caps are provided with through holes. The through holes are coaxial with the axis of the inner tube, and the diameter of the through holes is equal to the inner diameter of the inner tube. The through holes communicate with the inner tube.

[0016] Compared with the prior art, the present invention has the following advantages: By setting up an inner protective tube and an outer protective tube, and placing a buffer between the inner and outer protective tubes, the power cable can be installed inside the inner protective tube. The buffer is fixed by the inner and outer protective tubes, thus eliminating the need for a separate fixing structure for the buffer, simplifying the structure of the power cable protection pipe, and reducing the usage cost of the power cable protection pipe.

[0017] The inner protective tube consists of an upper tube body and a lower tube body, while the outer protective tube consists of an upper tube section and a lower tube section. Both the inner and outer protective tubes are separate structures. During maintenance, if a part of the inner or / and outer protective tube is damaged, it can be replaced independently, making the power cable protection tube easy to maintain and reducing the maintenance cost of the power cable protection tube.

[0018] Both the inner and outer splice seams are covered by buffers. In addition to their buffering function, the buffers also seal the inner and outer splice seams, further simplifying the structure of the power cable protection pipe. Attached Figure Description

[0019] For illustrative purposes, several embodiments of the present invention are illustrated in the following figures. These figures are incorporated herein by reference and form part of the detailed description. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring the concept of the subject matter of the present invention.

[0020] Figure 1 This is a schematic diagram of the present invention.

[0021] Figure 2 This is the front view of the present invention with the end caps omitted.

[0022] Figure 3 for Figure 2 Axonometric drawing.

[0023] Figure 4 This is an exploded view of the present invention.

[0024] Figure 5 This is a schematic diagram of the lower tube.

[0025] Figure 6 This is a schematic diagram of a buffer.

[0026] As shown in the figure: 1. Inner tube; 11. First half; 111. Extension piece; 12. Second half.

[0027] 2. Inner protective tube, 21. Upper tube body, 22. Lower tube body, 221. Splicing edge.

[0028] 3. Outer protective tube; 31. Upper tube section; 311. Insert plate; 32. Lower tube section; 33. Weight reduction groove.

[0029] 4. Buffer.

[0030] 5. End cap, 51. Through hole. Detailed Implementation

[0031] The specific embodiments shown below are intended to describe various configurations of the subject matter of this invention and are not intended to represent the only configuration in which the subject matter of this invention can be practiced. The specific embodiments include detailed descriptions intended to provide a thorough understanding of the subject matter of this invention. However, it will be clear and apparent to those skilled in the art that the subject matter of this invention is not limited to the specific details shown herein and can be practiced without these specific details.

[0032] Understandably, in this document, relational terms such as “first” and “second” are intended to distinguish one entity or operation from another, and are not intended to expressly or imply any actual relationship or order between these entities or operations.

[0033] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Reference Figures 1 to 6 As shown, an impact-resistant power cable protection pipe includes an inner pipe 1; Inner protective tube 2, which is disposed outside the inner tube 1; Outer protective tube 3, which is disposed outside the inner protective tube 2; And buffer 4, the buffer 4 being located between the outer protective tube 3 and the inner protective tube 2; The inner protective tube 2 includes an upper tube body 21 and a lower tube body 22. The upper tube body 21 is inserted into the lower tube body 22, and an inner splicing seam is formed between the upper tube body 21 and the lower tube body 22. The outer protective tube 3 includes an upper tube part 31 and a lower tube part 32, and an outer splicing seam is formed between the upper tube part 31 and the lower tube part 32. Both the inner splicing seam and the outer splicing seam are covered by the buffer 4.

[0035] In practice, the material used to manufacture the inner tube 1 is not limited and can be determined according to the protection requirements of the power cable. The inner protective tube 2 can be made of non-metallic materials, such as rubber, to give the inner protective tube 2 a certain buffering performance, that is, the protective tube can produce a certain elastic deformation.

[0036] The outer protective tube 3 is mainly used to withstand impact. The outer protective tube 3 can be made of metal to improve its strength.

[0037] The buffer 4 can be made of a material with elastic deformation capability, such as rubber. The buffer 4 is strip-shaped. The buffer 4 is in surface contact with both the inner protective tube 2 and the outer protective tube 3.

[0038] In some embodiments, the inner seam and the outer seam are respectively provided.

[0039] Reference Figures 1 to 6As shown, in practice, when laying power cables, considering the construction progress, it is usually required that the power cables be easier to lay. Therefore, in some embodiments, both the inner splice seam and the outer splice seam are set horizontally.

[0040] During construction, the lower pipe body 22 and the lower pipe section 32 are first laid at the target location. Then, the inner pipe 1 is laid down with the lower pipe body 22, followed by the installation of the upper pipe body 21 and the upper pipe section 31 in sequence. This device method eliminates the need to insert one end of the inner protective pipe 2 into the inner protective pipe 2, making construction operations convenient and improving construction efficiency.

[0041] Generally, the more buffers 4 are provided, the better their buffering capacity. That is, the more buffers 4 there are, the more uniform the force on the inner protective tube 2. In some embodiments, there are multiple buffers 4, which are evenly arranged along the circumference of the inner protective tube 2. Relative to each other, two buffers 4 cover the inner seam and the outer seam, respectively. For example, there can be four, six, eight, etc., buffers 4.

[0042] In practice, power cables are usually quite long, and the assembly of power cables with inner tube 1 should also be highly efficient. Therefore, in some embodiments, the inner tube 1 includes a first half 11 and a second half 12, both of which are arc-shaped. The first half 11 is inserted into the second half 12, and the inner protective tube 2 is provided outside the inner tube 1 by means of elastic deformation interference fit.

[0043] Reference Figures 1 to 6 As shown, the first half 11 and the second half 12 should have a certain sealing performance to prevent liquids and other substances from entering the inner tube 1. When the inner tube 1 adopts a split structure, the sealing performance of the inner tube 1 should be ensured. In some embodiments, the first half 11 is provided with an extension piece 111 extending to the second half 12. The extension piece 111 and the first half 11 are an integral structure. The second half 12 is provided with a notch that cooperates with the extension piece 111.

[0044] Understandably, the extension piece 111, in conjunction with the notch, increases the contact area between the first half 11 and the second half 12, thereby providing better sealing performance between them. Simultaneously, because the inner protective tube 2 is installed outside the inner tube 1 using elastic deformation interference fit, the contact between the first half 11 and the second half 12 becomes even tighter.

[0045] In some embodiments, the upper tube body 21 is provided with a splicing groove, and the lower tube body 22 is provided with a splicing ridge 221 that cooperates with the splicing groove. The splicing ridge 221 is installed in the splicing groove by means of elastic deformation.

[0046] In some embodiments, the splicing ridge 221 and the lower tube body 22 are an integral structure, and the cross-sectional shape of the splicing ridge 221 is an arc shape larger than a semicircle.

[0047] In some embodiments, the upper tube portion 31 is provided with a insert 311, the lower tube portion 32 is provided with a slot that mates with the insert 311, the insert 311 and the upper tube portion 31 are integrally formed, and the outer protective tube 3 is provided with a weight-reducing groove 33 to reduce the weight of the outer protective tube 3, the weight-reducing groove 33 passing through the outer protective tube 3.

[0048] Understandably, the correspondence between the inner and outer splice seams refers to their orientation being the same, not their positional correspondence. Typically, when the inner and outer splice seams are staggered, liquid is less likely to enter the inner tube 1.

[0049] Reference Figures 1 to 6 As shown, in some embodiments, the buffer 4 is installed between the inner protective tube 2 and the outer protective tube 3 using an elastic deformation interference fit. The impact-resistant power cable protection tube also includes end caps 5. There are two end caps 5, which are located at both ends of the outer protective tube 3. The end caps 5 are fixed to the outer protective tube 3 by screws. The end caps 5 are provided with through holes 51. The through holes 51 are coaxial with the axis of the inner tube 1, and the diameter of the through holes 51 is equal to the inner diameter of the inner tube 1. The through holes 51 communicate with the inner tube 1.

[0050] In some embodiments, the buffer 4 may have evenly distributed grooves that penetrate the buffer 4, making it easier for the buffer 4 to undergo elastic deformation. Whether or not grooves are provided in the buffer 4 depends on the usage environment. When the impact is small and frequent, grooves may be provided. When the impact is large and infrequent, grooves may not be provided.

[0051] In some embodiments, the end cap 5 is used to define the relative positions of the inner tube 1, the inner protective tube 2, the buffer 4, and the outer protective tube 3. Understandably, the end cap 5 may also function as a connector for the end-to-end splicing of power cable protective tubes.

[0052] The above describes the subject matter technical solution of this utility model and its corresponding details. It is understood that the above description is only some implementation schemes of the subject matter technical solution of this utility model, and some details may be omitted in the specific implementation.

[0053] Furthermore, in some embodiments of the above utility model, multiple embodiments may be combined; however, due to space limitations, all such combinations will not be listed here. Those skilled in the art can freely combine the above embodiments according to their needs to achieve a better application experience.

[0054] When implementing the subject matter technical solution of this utility model, those skilled in the art can obtain other detailed configurations or drawings based on the subject matter technical solution and the accompanying drawings. Obviously, without departing from the subject matter technical solution of this utility model, these details still fall within the scope of the subject matter technical solution of this utility model.

Claims

1. An impact-resistant power cable protection pipe, characterized in that: The device includes an inner tube (1); an inner protective tube (2) disposed outside the inner tube (1); an outer protective tube (3) disposed outside the inner protective tube (2); and a buffer (4) located between the outer protective tube (3) and the inner protective tube (2); the inner protective tube (2) includes an upper tube body (21) and a lower tube body (22), the upper tube body (21) being inserted into the lower tube body (22), and an inner splicing seam being formed between the upper tube body (21) and the lower tube body (22); the outer protective tube (3) includes an upper tube part (31) and a lower tube part (32), and an outer splicing seam being formed between the upper tube part (31) and the lower tube part (32); and both the inner splicing seam and the outer splicing seam are covered by the buffer (4).

2. The impact-resistant power cable protection pipe according to claim 1, characterized in that: The inner splicing seam is set in correspondence with the outer splicing seam.

3. The impact-resistant power cable protection pipe according to claim 2, characterized in that: Both the inner and outer splicing seams are horizontally arranged.

4. The impact-resistant power cable protection pipe according to claim 3, characterized in that: There are multiple buffers (4), and the multiple buffers (4) are evenly arranged along the circumference of the inner protective tube (2), wherein two buffers (4) respectively cover the inner splice seam and the outer splice seam.

5. The impact-resistant power cable protection pipe according to claim 1, characterized in that: The inner tube (1) includes a first half (11) and a second half (12), both of which are arc-shaped. The first half (11) is inserted into the second half (12), and the inner protective tube (2) is provided outside the inner tube (1) by means of elastic deformation interference.

6. The impact-resistant power cable protection pipe according to claim 5, characterized in that: The first half (11) is provided with an extension piece (111) extending to the second half (12). The extension piece (111) and the first half (11) are integrally formed. The second half (12) is provided with a notch that cooperates with the extension piece (111).

7. The impact-resistant power cable protection pipe according to claim 1, characterized in that: The upper tube body (21) is provided with a splicing groove, and the lower tube body (22) is provided with a splicing ridge (221) that cooperates with the splicing groove. The splicing ridge (221) is installed in the splicing groove by means of elastic deformation.

8. The impact-resistant power cable protection pipe according to claim 7, characterized in that: The splicing edge (221) and the lower tube body (22) are an integral structure, and the cross-sectional shape of the splicing edge (221) is an arc shape larger than a semicircle.

9. The impact-resistant power cable protection pipe according to claim 1, characterized in that: The upper tube (31) is provided with a insert (311), and the lower tube (32) is provided with a slot that mates with the insert (311). The insert (311) and the upper tube (31) are an integral structure. The outer protective tube (3) is provided with a weight-reducing groove (33) to reduce the weight of the outer protective tube (3). The weight-reducing groove (33) passes through the outer protective tube (3).

10. The impact-resistant power cable protection pipe according to claim 1, characterized in that: The buffer (4) is installed between the inner protective tube (2) and the outer protective tube (3) by means of elastic deformation interference fit. The impact-resistant power cable protection tube also includes an end cap (5). There are two end caps (5). The two end caps (5) are located at both ends of the outer protective tube (3). The end caps (5) are fixed to the outer protective tube (3) by screws. The end caps (5) are provided with a through hole (51). The through hole (51) is coaxial with the axis of the inner tube (1). The diameter of the through hole (51) is equal to the inner diameter of the inner tube (1). The through hole (51) communicates with the inner tube (1).

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