Power cable with protection tube and manufacturing method

Abstract

The invention relates to a power cable with a protection tube and a manufacturing method, and relates to the field of cables, the power cable comprises a cable body, a protection outer tube and a plugging clamp, and the cable body is arranged in the protection outer tube in a penetrating manner; the plugging clamp is located at a pipe opening in the protective outer pipe. The plugging clamp comprises an outer plugging ring, an inner plugging ring and a flexible rubber ring; the outer plugging ring, the flexible rubber ring and the inner plugging ring are coaxially arranged and are sequentially arranged from the pipe opening of the protective outer pipe to the pipe middle of the protective outer pipe in the pipe length direction of the protective outer pipe. And the cable body penetrates through the outer plugging ring, the flexible rubber ring and the inner plugging ring. The cable protection pipe has the effect of reducing shaking of the cable body in the protection pipe so as to reduce cable damage.

Description

Technical Field

[0001] The present application relates to the field of cables, and in particular to a power cable with a protective tube and a manufacturing method thereof. Background Art

[0002] With the rapid development of my country's economy, the demand for electricity continues to grow, and the scale of power cable laying is also expanding.

[0003] In the construction of power cable projects, the cable pole protection tube used to be mainly cylindrical. Construction workers needed to pass the cable through the protection tube. In practice, there was a gap between the traditional protection tube and the cable. In order to prevent the entry of foreign objects and water intrusion, fireproof mud, cement, etc. were often used to seal the top of the protection tube.

[0004] However, these existing technologies have significant drawbacks. The gap between the conventional protective tube and the cable causes the cable to wobble when subjected to external forces (such as strong winds), which can damage the cable sheath and shorten the cable's service life. Therefore, providing a power cable that reduces cable swaying within the protective tube to minimize damage is an urgent need. Summary of the Invention

[0005] In order to reduce the shaking of the cable body in the protective tube and thus reduce cable damage, the present application provides a power cable with a protective tube and a manufacturing method.

[0006] In a first aspect, the present application provides a power cable with a protective tube, which adopts the following technical solution: A power cable with a protective tube, comprising: Cable body; a protective outer tube, wherein the cable body is passed through the protective outer tube; and A blocking clamp is located at the tube opening in the protective outer tube; the blocking clamp comprises: External sealing ring; inner sealing ring; and Flexible rubber ring; The outer sealing ring, the flexible rubber ring and the inner sealing ring are coaxially arranged and arranged in sequence from the mouth of the protective outer tube to the middle of the protective outer tube along the length direction of the protective outer tube; the cable body is passed through the outer sealing ring, the flexible rubber ring and the inner sealing ring.

[0007] By adopting the above technical solution, the cable body is passed through the protective outer tube, which can prevent the cable body from being directly exposed to the outside and play a protective role; a sealing clamp is provided at the tube opening inside the protective outer tube, and the cable body is passed through it, which can prevent the cable from shaking along the protective outer tube and reduce cable wear.

[0008] Optionally, the protective outer tube includes: Two half-tubes, each half-tube having a semicircular cross-section, the two half-tubes being spliced ​​together to form the circular protective outer tube; and The clamp is sleeved on the two half-tubes to fix the two half-tubes into a protective outer tube.

[0009] By adopting the above technical solution, the protective outer tube is designed as a round tube spliced ​​together by two semi-circular half-tubes and fixed with a clamp, which avoids the operation of passing the cable through the protective tube, simplifies the construction process, and shortens the construction period.

[0010] Optionally, also include: A flexible sponge ring comprises two sponge half rings spliced ​​into a cylindrical shape, and the sponge half rings are sandwiched between the cable body and the inner wall of the half pipe.

[0011] By adopting the above technical solution, the flexible sponge ring is clamped between the cable body and the inner wall of the half-tube, which can reduce the outer skin wear caused by the shaking of the cable body in the protective tube.

[0012] Optionally, blocking bars are provided on both sides of the half tube protruding toward one side of the central axis of the half tube, and the flexible sponge is stopped by the blocking bars to the inside of the half tube.

[0013] By adopting the above technical solution, the sponge half ring is installed in the half pipe, and the baffle can prevent the sponge half ring from falling, ensuring that the flexible sponge ring is continuously clamped between the cable body and the inner wall of the half pipe, reducing the outer skin wear caused by the shaking of the cable body in the protective tube.

[0014] Optionally, the outer sealing ring includes two outer half rings, and / or the inner sealing ring includes two inner half rings, and / or the flexible rubber ring includes two flexible half rings.

[0015] By adopting the above technical solution, the outer sealing ring, the inner sealing ring and the flexible rubber ring can be spliced ​​together from two half rings, which is convenient for assembly with the protective outer tube which is also spliced ​​together from two half tubes.

[0016] Optionally, the inner half ring is fixedly connected to the half pipe; and a stop assembly is provided at each end of the half pipe, and the stop assembly includes: an outer stop block, wherein the outer stop block is provided with a slot for inserting the half-tube wall, and when the half-tube is inserted into the slot, the outer stop block abuts against the outer half-ring; and A locking piece is connected to the outer stop block for fixing the locking piece to the half pipe.

[0017] By adopting the above technical solution, the half-tube is inserted into the slot of the outer stop block, so that the outer stop block abuts against the outer half ring. The insertion depth of the half-tube can be adjusted to squeeze the flexible rubber ring to increase its inner diameter, thereby clamping the cable body more firmly. The locking piece fixes the outer stop block to the half-tube, which can improve the stability of the entire structure, reduce cable shaking and outer skin wear, prevent foreign objects and water from entering the tube, and reduce safety hazards.

[0018] In a second aspect, the present application provides a method for manufacturing a power cable, which adopts the following technical solution: A method for manufacturing a power cable comprises the following steps: S1: Place a sponge half ring in each half tube and fix the sponge half ring to the half tube so that the sponge half ring is located between the inner half rings at both ends of the half tube; S2: Place the cable body between the two half-tubes; S3: Fix the two half pipes with a clamp; S4: Move the outer stop block so that the end of the half pipe is inserted into the slot until the flexible rubber ring is decompressed and deformed, and fix the outer stop block to the half pipe with a locking piece.

[0019] By adopting the above technical solution, the sponge half ring is placed in the half tube and fixed, which can reduce the outer skin wear caused by the shaking of the cable in the protective tube; the cable body is placed between the two half tubes and fixed with a clamp to facilitate the installation of the protective tube; the outer stop block is moved to insert the end of the half tube into the slot and lock it, which can squeeze the flexible rubber ring to increase its inner diameter, thereby more firmly clamping the cable body.

[0020] Optionally, in S1, a sponge placing device is used to place the sponge half ring in the half pipe; the sponge placing device includes and placing assembly; The placement assembly includes: A material holding seat, wherein a material holding trough is formed on the material holding seat along the first direction, the length of the material holding trough is in the second direction, the width of the material holding trough is in the third direction, and the width of the material holding trough is adapted to the diameter of the sponge half ring to accommodate the sponge half ring; and Narrowing plates, two of which are fixedly connected to the end wall of one opening of the material holding seat, and the two narrowing plates are located on both sides of the second direction, and the distance between the two narrowing plates gradually decreases toward the side away from the material holding seat; The space between the two baffles is used for inserting the two shrinking plates; A glue storage chamber is formed in the plate wall of the shrinking plate, and a glue outlet hole communicating with the glue storage chamber is opened on one side of the two shrinking plates close to each other.

[0021] By adopting the above technical solution, a sponge placing device is used to place the sponge half ring, so that the sponge half ring can be placed in the half tube conveniently and accurately; the necking plate can guide the sponge half ring to enter the half tube accurately; the necking plate is inserted between the baffles to prevent glue from adhering to the baffles; the glue storage chamber and the glue outlet hole allow the sponge half ring to be coated with glue when passing through, so as to fix it to the inner wall of the half tube.

[0022] Optionally, the sponge placement device further includes a frame and a material taking component; The material holding base is slidably connected to the frame along a first direction; The material taking component comprises: a sliding seat, the sliding seat being slidably connected to the frame along a third direction; a first linear driving member, the first linear driving member being fixedly connected to the sliding seat, and the telescopic direction of the first linear driving member being parallel to the first direction; A suction cup having an air inlet and an air outlet, wherein the suction cup is fixedly connected to the output end of the first linear drive member; the first linear drive member is used to drive the suction cup to insert into the glue storage chamber; and An air pump is connected to the air outlet of the suction cup through an air pipe.

[0023] By adopting the above technical solution, during operation, after the suction cup absorbs the sponge half ring, the sponge half ring is sent to the suction cup into the material holding seat, and the sponge half ring is pushed to leave from between the two shrinking plates and enter the half-tube; specifically, the sliding seat of the material-taking component is slidably connected to the frame along the third direction, and the position of the material-taking component can be flexibly moved; the first linear drive member is fixedly connected to the sliding seat and the telescopic direction is parallel to the first direction, which can drive the suction cup to insert into the glue storage chamber; the vacuum pump is connected to the suction cup outlet through the air pipe, and cooperates with the suction cup to realize the absorption of the sponge half ring, which is convenient for taking and placing the sponge half ring and improves the efficiency of placing the sponge half ring in the half-tube.

[0024] Optionally, a clamping assembly is further included, which is arranged on the frame and is used to clamp the half pipe.

[0025] By adopting the above technical solution, the half pipe is clamped by the clamping component, which facilitates the subsequent operation of placing the sponge half ring into the half pipe using the placement component.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. A blocking clamp is installed at the opening of the protective outer tube to prevent the cable from shaking along the protective outer tube, reduce cable wear and extend the service life of the cable; 2. By adopting a protective outer tube composed of two half tubes spliced ​​together and fixed by a clamp, the cumbersome process of passing the cable through the traditional cylindrical protective tube is avoided, which simplifies the construction process, shortens the construction period, and reduces the impact on users' electricity consumption; 3. Using sealing clamps and flexible sponge rings to clamp the cable body can effectively prevent foreign objects and water from entering the pipe, avoid the cable from being in a wet state for a long time, and eliminate safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the protective outer tube and the clamp in the power cable of the present application; Figure 2 This is a schematic structural diagram of the sealing clamp in the power cable of the present application; Figure 3 This is a schematic structural diagram of the stop assembly in the power cable of the present application; Figure 4 This is a schematic structural diagram of the flexible sponge ring in the power cable of the present application; Figure 5 This is a schematic diagram of the overall structure of the sponge placement device in the manufacturing method of the present application; Figure 6 It is a structural diagram of placing components in the manufacturing method of this application.

[0028] Explanation of the reference numerals: 1. Cable body; 2. Protective outer tube; 21. Half tube; 211. Avoidance groove; 212. Stop bar; 22. Hoop; 3. Sealing clamp; 31. Outer sealing ring; 311. Outer half ring; 32. Flexible rubber ring; 321. Flexible half ring; 33. Inner sealing ring; 331. Inner half ring; 4. Stop assembly; 41. Outer stop block; 411. Slot; 42. Locking piece; 5. Flexible sponge ring; 51. Sponge half ring; 6. Rack; 61. Table; 7. Clamp Component; 71. Second linear drive component; 72. Clamping block; 8. Placement component; 81. Material holding seat; 811. Material holding trough; 82. Narrowing plate; 821. Glue storage chamber; 822. Glue outlet hole; 823. Glue inlet hole; 83. Sealing plate; 831. Connecting port; 84. Cylinder; 85. Sliding rod; 9. Material picking component; 91. Linear motor; 911. Guide rail part; 912. Sliding part; 92. Sliding seat; 93. First linear drive component; 94. Vacuum pump; 95. Suction cup. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 This application is further described in detail. For ease of description, this application introduces directional terms such as a first direction, a second direction, and a third direction to form a three-dimensional reference direction. The directional terms used, such as "a first direction, a second direction, and a third direction," can be specifically shown in the figure, where X represents the first direction, Y represents the second direction, and Z represents the third direction, and the first direction, the second direction, and the third direction are perpendicular to each other.

[0030] The present application discloses a power cable with a protective tube and a manufacturing method. Figure 1 and Figure 2The power cable with a protective tube includes a cable body 1, a protective outer tube 2 and a blocking clamp 3; the cable body 1 is inserted into the protective outer tube 2, and the blocking clamp 3 is located between the cable body 1 and the protective outer tube 2; The protective outer tube 2 includes two half tubes 21 and a clamp 22 installed on the two half tubes 21. The two half tubes 21 are spliced ​​to form a circular tubular protective outer tube 2, that is, in the cross section perpendicular to the length of the half tube 21, the cross section of the protective outer tube 2 is circular, and the cross section of the half tube 21 is semicircular; the clamp 22 is sleeved on the outside of the two half tubes 21 to fix the two half tubes 21 into the protective outer tube 2.

[0031] Reference Figure 1 and Figure 2 , a sealing clamp 3 is provided at each end of the protective outer tube 2, and the sealing clamp 3 is located at the pipe mouth inside the protective outer tube 2; the sealing clamp 3 includes an outer sealing ring 31, a flexible rubber ring 32 and an inner sealing ring 33; the outer sealing ring 31, the flexible rubber ring 32 and the inner sealing ring 33 are coaxially arranged, and, along the pipe length direction of the protective outer tube 2, the three are arranged in sequence from the pipe mouth of the protective outer tube 2 to the pipe middle of the protective outer tube 2; the pipe middle of the protective outer tube 2 refers to the pipe middle of the protective outer tube 2 in the pipe length direction of the protective outer tube 2; one end of the flexible rubber ring 32 is fixedly connected to the outer sealing ring 31, and the other end is fixedly connected to the inner sealing ring 33; The cable body 1 is sequentially passed through the outer sealing ring 31, the flexible rubber ring 32 and the inner sealing ring 33. By clamping the sealing clamp 3 between the cable body 1 and the protective outer tube 2, the cable can be prevented from shaking along the protective outer tube 2, thereby reducing cable wear.

[0032] Reference Figure 1 and Figure 2 In some embodiments of the present application, the outer sealing ring 31 includes two outer half rings 311, and / or the inner sealing ring 33 includes two inner half rings 331, and / or the flexible rubber ring 32 includes two flexible half rings 321; in an embodiment, the outer sealing ring 31 includes two outer half rings 311, the inner sealing ring 33 includes two inner half rings 331, and the flexible rubber ring 32 includes two flexible half rings 321; in a cross section perpendicular to the length of the half pipe 21, the outer half ring 311 and the flexible half ring 321 are The ring 321 and the inner half ring 331 are both semicircular, and each end of the half pipe 21 is correspondingly provided with an inner half ring 331, a flexible half ring 321 and an outer half ring 311, and the side walls of the inner half ring 331, the flexible half ring 321, the outer half ring 311 and the half pipe 21 are flush to ensure that the inner half ring 331, the flexible half ring 321, the outer half ring 311 and the half pipe 21 on both sides can form a cylindrical outer sealing ring 31, a flexible rubber ring 32, an inner sealing ring 33 and a protective outer pipe 2 after splicing.

[0033] Reference Figure 3In some embodiments of the present application, the inner half-ring 331 is fixedly connected to the half-tube 21; a stop assembly 4 is provided at each end of each half-tube 21, and the stop assembly 4 includes an outer stop block 41 and a locking member 42. The outer stop block 41 is provided with a slot 411 for inserting the wall of the half-tube 21. When the half-tube 21 is inserted into the slot 411, the outer stop block 41 abuts against the outer half-ring 311. By adjusting the depth of the half-tube 21 inserted into the slot 411, the distance between the outer stop block 41 and the inner stop block can be changed, thereby squeezing the flexible rubber ring 32 to increase the inner diameter of the flexible rubber ring 32, thereby clamping the cable body 1 more firmly. The locking member 42 is connected to the outer stop block 41 to fix the locking member 42 to the half pipe 21. In this embodiment, the locking member 42 is a screw. The locking member 42 is located outside the protective outer pipe 2. The locking member 42 passes through the outer stop block 41 and is threadedly connected to the outer stop block 41, so that the locking member 42 presses against the wall of the protective outer pipe 2. In some embodiments of the present application, if the end walls of the two protective outer tubes 2 need to be in contact, an avoidance groove 211 can be opened at the end of the half tube 21 to accommodate the outer stop block 41, so that the end walls of the two protective outer tubes 2 can be in contact.

[0034] Reference Figure 4 In some embodiments of the present application, a cylindrical flexible sponge ring 5 is further included, and the flexible sponge ring 5 is filled with melamine sponge. The flexible sponge ring 5 includes two cylindrical sponge half rings 51, and each half tube 21 is filled with a corresponding sponge half ring 51, so that the sponge half ring 51 can be sandwiched between the cable body 1 and the inner wall of the half tube 21. In a cross section perpendicular to the length of the flexible sponge ring 5, the flexible sponge ring 5 is annular, and the sponge half ring 51 is a semicircular ring. The flexible sponge ring 5 is sandwiched between the cable body 1 and the inner wall of the half tube 21, which can reduce the wear of the outer skin of the cable body 1 caused by the shaking of the cable body 1 in the protective tube. After the sponge half ring 51 is installed in the half tube 21, in order to prevent the sponge half ring 51 from falling, the inner walls on both sides of the half tube 21 are provided with a blocking bar 212 protruding toward the central axis of the half tube 21. The flexible sponge ring 5 is stopped to the inside of the half tube 21 by the blocking bar 212, and the sponge half ring 51 can be prevented from falling by the blocking bar 212.

[0035] The implementation principle of the power cable with a protective tube in the embodiment of the present application is: the cable body 1 is placed between the two half-tubes 21, and the cable body 1 is clamped by the sealing clamp 3 and the flexible sponge ring 5. Finally, the two half-tubes 21 are fixed by the clamp 22.

[0036] The present application also discloses a method for manufacturing the aforementioned power cable with a protective tube. The method for manufacturing the power cable with a protective tube includes the following steps: S1: Place a corresponding sponge half ring 51 in each half tube 21 and fix the sponge half ring 51 to the half tube 21 so that the sponge half ring 51 is located between the inner half rings 331 at both ends of the half tube 21; S2: Place the cable between the two half pipes 21; S3: Fix the two half pipes 21 with a clamp 22; S4 : Move the outer stopper 41 to insert the end of the half pipe 21 into the slot 411 until the flexible rubber ring 32 is decompressed and deformed, and fix the outer stopper 41 to the half pipe 21 with the locking member 42 .

[0037] Reference Figure 5 In S1, a sponge placing device is used to place the sponge half ring 51 on the half pipe 21; the sponge placing device includes a frame 6, a clamping assembly 7 and a placing assembly 8; the clamping assembly 7 is provided on the frame 6 for clamping the half pipe 21; A table 61 is fixedly connected to the frame 6, and a clamping assembly 7 is provided on the table 61, and two clamping assemblies 7 are provided; the clamping assembly 7 includes a second linear drive member 71 and a clamping block 72, the driving direction of the second linear drive member 71 is parallel to the third direction, in this embodiment, the second linear drive member 71 is an electric push rod, the cylinder of the second linear drive member 71 is fixedly connected to the table 61, the push rod of the second linear drive member 71 is fixedly connected to the clamping block 72, the clamping blocks 72 in the two clamping assemblies 7 are located on the side where the two second linear drives 71 are close to each other to form a clamping area, and the two clamping blocks 72 are driven by the second linear drive member 71 to move along the third direction, so that the half pipe 21 can be clamped by the two clamping blocks 72; During operation, the half-tube 21 is placed horizontally on the table 61 with the opening of the half-tube 21 facing upward; then, the second linear drive member 71 pushes the clamping block 72 to move to one side of the half-tube 21, so that the two clamping blocks 72 can clamp the half-tube 21; subsequently, the sponge half ring 51 can be placed into the half-tube 21 through the placement component 8.

[0038] Reference Figure 5 and Figure 6 , the placement component 8 includes a material holding seat 81 and a necking plate 82. The material holding seat 81 is located just above the clamping area. The material holding seat 81 is slidably connected to the frame 6 along the first direction. Specifically, a third linear drive member is provided on the frame 6. The driving direction of the third linear drive member is parallel to the first direction. In this embodiment, the third linear drive member is an electric push rod. The cylinder of the third linear drive member is fixedly connected to the frame 6. The push rod of the third linear drive member is fixedly connected to the material holding seat 81. The third linear drive member can drive the material holding seat 81 to move up and down, so that the material holding seat 81 moves toward the clamping area. A material receiving groove 811 is formed on the material receiving seat 81 along the first direction, the groove length direction of the material receiving groove 811 is the second direction, the groove width direction of the material receiving groove 811 is the third direction, and the groove width of the material receiving groove 811 is adapted to the diameter of the sponge half ring 51 to accommodate the sponge half ring 51; after the sponge half ring 51 is put into the material receiving groove 811, the sponge half ring 51 is pushed downward to be pushed out from the bottom of the material receiving groove 811; Two shrinking plates 82 are fixedly connected to the end wall of the opening of the material receiving seat 81 near the table 61, that is, the bottom opening of the material receiving seat 81. The two shrinking plates 82 are located on both sides of the second direction. The distance between the two shrinking plates 82 gradually decreases toward the side away from the material receiving seat 81, that is, the distance between the two shrinking plates 82 gradually decreases from top to bottom; the space between the two blocking bars 212 on both sides of the half pipe 21 is used for the two shrinking plates 82 to be inserted; During operation, the third linear drive member drives the material holding seat 81 to move downward so that the necking plate 82 is inserted between the two material stops. Then, the sponge half ring 51 in the material holding seat 81 is pushed downward so that the sponge half ring 51 passes through the area between the two necking plates 82 and enters the half tube 21. The sponge half ring 51 can then restore its deformation and fill the half tube 21. Subsequently, the third linear drive member drives the material holding seat 81 to move upward so that the installation operation of the next sponge half ring 51 can be carried out.

[0039] Reference Figure 5 and Figure 6 , a glue storage chamber 821 is formed in the wall of the shrinking plate 82, and a glue outlet hole 822 communicating with the glue storage chamber 821 is opened on one side wall of the two shrinking plates 82 close to each other, and the discharge hole is arranged near the bottom wall of the shrinking plate 82; a glue inlet hole 823 communicating with the glue storage chamber 821 is opened on the top of the side of the two shrinking plates 82 away from each other, and glue is fed into the glue storage chamber 821 from the glue inlet hole 823. When the sponge half ring 51 passes through the shrinking plate 82, the glue will be discharged from the glue outlet hole 822 to the outer wall of the sponge half ring 51. When the sponge half ring 51 is pushed into the half pipe 21, the sponge half ring 51 can be fixed to the inner wall of the half pipe 21 by glue; in this process, since the shrinking plate 82 is inserted between the two blocking bars 212 on the two half pipes 21, it can prevent the glue from adhering to the blocking bars 212; When there is no need to discharge glue, in order to prevent glue from flowing out of the glue outlet hole 822, a sealing plate 83 and a cylinder 84 are further provided on the shrinking plate 82. The sealing plate 83 contacts the inner wall of the side of the shrinking plate 82 where the glue outlet is provided, and a connecting port 831 is provided on the sealing plate 83; the sealing plate 83 can slide along the second direction in the shrinking plate 82 to connect the connecting port 831 with the glue outlet hole 822, or the glue outlet hole 822 is blocked by the sealing plate 83; the cylinder body of the cylinder 84 is fixedly connected to the end wall of the sealing plate, and the piston rod of the cylinder 84 is coaxially fixedly connected to the sliding rod 85. The sliding rod 85 passes through the end wall of the shrinking plate 82 and is fixedly connected to the sealing plate 83, so that the sealing plate 83 is pushed by the cylinder 84 to move along the second direction.

[0040] In some embodiments of the present application, a material taking assembly 9 is further included, which includes a linear motor 91, a sliding seat 92, a first linear drive member 93, an air pump 94, and a suction cup 95 with an air inlet and an air outlet; The linear motor 91 has a guide rail portion 911 fixedly connected to the frame 6 and a sliding portion 912 slidably connected to the guide rail portion 911 along the third direction. The sliding seat 92 is fixedly connected to the sliding portion 912 in the linear motor 91, so that the sliding seat 92 can be driven by the linear motor 91 to move; the driving direction of the first linear drive member 93 is parallel to the first direction, the first linear drive member 93 is a multi-stage cylinder 84, the cylinder body of the first linear drive member 93 is fixedly connected to the sliding seat 92, the piston rod of the first linear drive member 93 is fixedly connected to the suction cup 95, the air pump 94 is fixedly connected to the shell of the suction cup 95, and the air outlet of the air pump 94 and the suction cup 95 are connected through an air pipe; the linear motor 91 is used to drive the first linear drive member 93 and the suction cup 95 to move to just above the material holding seat 81; During the process of transporting the sponge half ring 51, the first linear drive member 93 pushes the suction cup 95 to move downward to suck up the sponge half ring 51, and then the linear drive member transports the sponge half ring 51 to directly above the material holding seat 81. Subsequently, the first linear drive member 93 drives the sponge half ring 51 to move downward, so that the sponge half ring 51 passes through between the material holding seat 81 and the two shrinking plates 82, and then sticks to the inner wall of the half tube 21.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A power cable with a protective tube, characterized in that: include: Cable body (1); A protective outer tube (2), wherein the cable body (1) is passed through the protective outer tube (2); as well as A blocking clamp (3), the blocking clamp (3) being located at the tube opening inside the protective outer tube (2); the blocking clamp (3) comprising: Outer sealing ring (31); an inner sealing ring (33); and Flexible rubber ring (32); The outer sealing ring (31), the flexible rubber ring (32) and the inner sealing ring (33) are coaxially arranged and arranged in sequence from the mouth of the protective outer tube (2) to the middle of the protective outer tube (2) along the length direction of the protective outer tube (2); the cable body (1) is passed through the outer sealing ring (31), the flexible rubber ring (32) and the inner sealing ring (33).

2. The power cable with a protective tube according to claim 1, characterized in that: The protective outer tube (2) comprises: Two half-tubes (21), the cross section of the tube wall of the half-tube (21) is semicircular, and the two half-tubes (21) are spliced ​​together to form the circular tubular protective outer tube (2); and A hoop (22) is sleeved on the outside of the two half-tubes (21) to fix the two half-tubes (21) into a protective outer tube (2).

3. The power cable with a protective tube according to claim 2, characterized in that: Also includes: A flexible sponge ring (5) comprises two sponge half rings (51) spliced ​​into a cylindrical shape, and the sponge half rings (51) are sandwiched between the cable body (1) and the inner wall of the half pipe (21).

4. The power cable with a protective tube according to claim 3, characterized in that: Blocking bars (212) are provided on both sides of the half tube (21) toward one side of the central axis of the half tube (21), and the flexible sponge is stopped by the blocking bars (212) to the inside of the half tube (21).

5. The power cable with a protective tube according to claim 4, characterized in that: The outer sealing ring (31) includes two outer half rings (311), and / or the inner sealing ring (33) includes two inner half rings (331), and / or the flexible rubber ring (32) includes two flexible half rings (321).

6. The power cable with a protective tube according to claim 5, characterized in that: The inner half ring (331) is fixedly connected to the half pipe (21); a stopper assembly (4) is provided at each corresponding end of the half pipe (21), and the stopper assembly (4) comprises: an outer stop block (41), the outer stop block (41) being provided with a slot (411) for inserting the wall of the half pipe (21), and when the half pipe (21) is inserted into the slot (411), the outer stop block (41) abuts against the outer half ring (311); and A locking member (42) is connected to the outer stop block (41) to fix the locking member (42) to the half pipe (21).

7. A method for manufacturing a power cable with a protective tube according to any one of claims 5 to 6, characterized in that: The steps include: S1: Place a corresponding sponge half ring (51) in each half tube (21), and fix the sponge half ring (51) to the half tube (21), so that the sponge half ring (51) is located between the inner half rings (331) at both ends of the half tube (21); S2: placing the cable body between the two half-tubes (21); S3: Fix the two half pipes (21) with a clamp (22); S4: Move the outer stopper (41) to insert the end of the half pipe (21) into the slot (411) until the flexible rubber ring (32) is decompressed and deformed, and fix the outer stopper (41) to the half pipe (21) with the locking member (42).

8. The method for manufacturing a power cable with a protective tube according to claim 7, characterized in that: In said S1, a sponge placing device is used to place said sponge half ring (51) in a half pipe (21); said sponge placing device comprises a placing assembly (8); The placement component (8) comprises: A material holding seat (81), wherein a material holding trough (811) is provided on the material holding seat (81) along a first direction, the trough length direction of the material holding trough (811) is a second direction, the trough width direction of the material holding trough (811) is a third direction, and the trough width of the material holding trough (811) is adapted to the diameter of the sponge half ring (51) for accommodating the sponge half ring (51); and A constriction plate (82), wherein two constriction plates (82) are fixedly connected to the end wall of one opening of the material receiving seat (81), and the two constriction plates (82) are located on both sides of the second direction, and the distance between the two constriction plates (82) gradually decreases toward the side away from the material receiving seat (81); The space between the two blocking bars (212) is used for inserting the two shrinking plates (82); A glue storage chamber (821) is formed in the wall of the shrinking plate (82), and a glue outlet hole (822) communicating with the glue storage chamber (821) is provided on one side of the two shrinking plates (82) close to each other.

9. The method for manufacturing a power cable with a protective tube according to claim 8, characterized in that: The sponge placement device further comprises a frame (6) and a material taking component (9); The material holding seat (81) is slidably connected to the frame (6) along a first direction; The material taking component (9) comprises: a sliding seat (92), the sliding seat (92) being slidably connected to the frame (6) along a third direction; a first linear driving member (93), the first linear driving member (93) being fixedly connected to the sliding seat (92), and the telescopic direction of the first linear driving member (93) being parallel to the first direction; a suction cup (95) having an air inlet and an air outlet, wherein the suction cup (95) is fixedly connected to the output end of the first linear drive member (93); the first linear drive member (93) is used to drive the suction cup (95) to be inserted into the glue storage chamber (821); and An air pump (94) is connected to the air outlet of the suction cup (95) via an air pipe.

10. The method for manufacturing a power cable with a protective tube according to claim 9, characterized in that: It also includes a clamping assembly (7), which is arranged on the frame (6) and is used to clamp the half pipe (21).

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