Power cable with protective tube and method of manufacture

Abstract

The application relates to a power cable with a protective tube and a manufacturing method, and relates to the field of cables. The power cable comprises a cable body, a protective outer tube and a blocking clamp. The cable body is arranged in the protective outer tube. The blocking clamp is arranged at the tube opening in the protective outer tube. The blocking clamp comprises an outer blocking ring, an inner blocking ring and a flexible rubber ring. The outer blocking ring, the flexible rubber ring and the inner blocking ring are coaxially arranged and sequentially arranged from the tube opening to the tube middle of the protective outer tube along the tube length direction of the protective outer tube. The cable body is arranged in the outer blocking ring, the flexible rubber ring and the inner blocking ring. The application has the effect of reducing the shaking of the cable body in the protective tube and reducing the damage of the cable.

Description

TECHNICAL FIELD

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

[0002] With the rapid development of China'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 engineering, the cable pole protection tube is mainly in the form of a cylinder. The construction personnel need to pass the cable through the protection tube. In practice, there is a gap between the traditional protection tube and the cable. In order to prevent foreign matter from entering and water from invading, fire clay, cement and other materials are often used to seal the top of the protection tube.

[0004] However, these existing technical means have obvious defects; the gap between the traditional protection tube and the cable makes the cable shake when subjected to external forces (such as strong winds), which in turn causes the cable sheath to be damaged, shortening the service life of the cable. Therefore, it is an urgent problem to provide a power cable that reduces the shaking of the cable body in the protection tube to reduce cable damage. SUMMARY

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

[0006] In a first aspect, the present application provides a power cable with a protection tube, which adopts the following technical scheme:

[0007] A power cable with a protection tube, comprising:

[0008] a cable body;

[0009] a protection outer tube, the cable body is arranged in the protection outer tube; and

[0010] a sealing clamp, the sealing clamp is located at the pipe opening in the protection outer tube; the sealing clamp comprises:

[0011] an outer sealing ring;

[0012] an inner sealing ring; and

[0013] a flexible rubber ring;

[0014] The outer sealing ring, flexible rubber ring and inner sealing ring are coaxially arranged, and are arranged in sequence from the pipe opening of the protection outer tube to the middle of the pipe of the protection outer tube along the pipe length direction of the protection outer tube; the cable body is arranged in the outer sealing ring, flexible rubber ring and inner sealing ring.

[0015] By adopting the technical scheme, the cable body is arranged in the protection outer tube, so that the cable body is prevented from being directly exposed, and protection is achieved; the plugging clamp is arranged at the pipe opening in the protection outer tube, the cable body is arranged in the plugging clamp, and the cable is prevented from shaking along the protection outer tube, so that cable abrasion is reduced.

[0016] Optionally, the protection outer tube comprises:

[0017] two half pipes, a cross section of a pipe wall of the half pipe is a half circular ring, and the two half pipes are spliced to form the circular pipe-shaped protection outer tube; and

[0018] a hoop, the hoop is sleeved outside the two half pipes to fix the two half pipes as the protection outer tube.

[0019] By adopting the technical scheme, the protection outer tube is designed as a circular pipe formed by splicing two half circular ring-shaped half pipes, and the hoop is used for fixing, so that the operation of passing the cable through the protection outer tube is avoided, the construction process is simplified, and the construction period is shortened.

[0020] Optionally, the protection outer tube further comprises:

[0021] a flexible sponge ring, the flexible sponge ring comprises two sponge half rings spliced as a cylinder, and the sponge half rings are clamped between the cable body and the inner wall of the half pipe.

[0022] By adopting the technical scheme, the flexible sponge ring is clamped between the cable body and the inner wall of the half pipe, so that abrasion of the outer skin caused by shaking of the cable body in the protection pipe is reduced.

[0023] Optionally, a blocking strip is protruded to one side of a center axis of the half pipe on two sides of the half pipe, and the flexible sponge ring is blocked by the blocking strip to the inner side of the half pipe.

[0024] By adopting the technical scheme, the sponge half ring is installed in the half pipe, the blocking strip prevents the sponge half ring from falling, the flexible sponge ring is continuously clamped between the cable body and the inner wall of the half pipe, and abrasion of the outer skin caused by shaking of the cable body in the protection pipe is reduced.

[0025] Optionally, the outer plugging ring comprises two outer half rings, and / or the inner plugging ring comprises two inner half rings, and / or the flexible rubber ring comprises two flexible half rings.

[0026] By adopting the technical scheme, the outer plugging ring, the inner plugging ring and the flexible rubber ring can be spliced by two half rings, so that assembly and cooperation with the protection outer tube spliced by two half pipes are facilitated.

[0027] Optionally, the inner half ring is fixedly connected to the half pipe; a blocking assembly is arranged at each end of the half pipe, and the blocking assembly comprises:

[0028] An outer stopper is provided with a slot for inserting the half-pipe wall, and the outer stopper abuts against the outer half-ring when the half-pipe is inserted into the slot.

[0029] A locking member is connected to the outer stopper for fixing the locking member to the half-pipe.

[0030] By inserting the half-pipe into the slot of the outer stopper, the outer stopper abuts against the outer half-ring, and adjusting the insertion depth of the half-pipe can extrude the flexible rubber ring to increase its inner diameter, thereby more firmly clamping the cable body. The locking member fixes the outer stopper to the half-pipe, which can improve the stability of the entire structure, reduce cable shaking and outer skin abrasion, avoid foreign matter and water entering the pipe, and reduce safety hazards.

[0031] In a second aspect, the application provides a power cable manufacturing method using the following technical solution:

[0032] A power cable manufacturing method includes the following steps:

[0033] S1: A sponge half-ring is placed in each half-pipe, and the sponge half-ring is fixed to the half-pipe, with the sponge half-ring located between the inner half-rings at both ends of the half-pipe;

[0034] S2: The cable body is placed between the two half-pipes;

[0035] S3: The two half-pipes are fixed with a clamp;

[0036] S4: The outer stopper is moved to insert the half-pipe end into the slot until the flexible rubber ring is decompressed and deformed, and the locking member is used to fix the outer stopper to the half-pipe.

[0037] By placing the sponge half-ring in the half-pipe and fixing it, the abrasion of the outer skin caused by the shaking of the cable in the protection pipe can be reduced. By placing the cable body between the two half-pipes and fixing it with a clamp, it is convenient to install the protection pipe. By moving the outer stopper to insert the half-pipe end into the slot and locking it, the flexible rubber ring can be extruded to increase its inner diameter, thereby more firmly clamping the cable body.

[0038] Optionally, in S1, the sponge half-ring is placed in the half-pipe using a sponge placing device; the sponge placing device includes a placing assembly;

[0039] The placing assembly includes:

[0040] A material containing seat is provided with a material containing slot extending in a first direction, the slot length direction of the material containing slot is a second direction, the slot width direction of the material containing slot is a third direction, and the slot width of the material containing slot is adapted to the diameter of the sponge half-ring for containing the sponge half-ring; and

[0041] two of the necking plates are fixedly connected to the end wall of one of the openings of the material container, and are located on two sides of the second direction, and the distance between the two necking plates gradually decreases towards the side away from the material container;

[0042] The space between the two blocking bars is used for inserting the two necking plates;

[0043] The plate wall of the necking plate is formed with a glue storage chamber, and the side of the two necking plates close to each other is provided with a glue outlet hole in communication with the glue storage chamber.

[0044] By using the above technical scheme, the sponge half ring can be conveniently and accurately placed into the half pipe by using the sponge placing device; the necking plate can guide the sponge half ring to accurately enter the half pipe; the necking plate inserted between the blocking bars can prevent the glue from adhering to the blocking bars; the glue storage chamber and the glue outlet hole can coat the glue when the sponge half ring passes through, so as to fix it to the inner wall of the half pipe.

[0045] Optionally, the sponge placing device further comprises a rack and a material taking assembly;

[0046] The material container is slidingly connected to the rack along the first direction;

[0047] The material taking assembly comprises:

[0048] A sliding seat is slidingly connected to the rack along the third direction;

[0049] A first linear drive is fixedly connected to the sliding seat, and the extension direction of the first linear drive is parallel to the first direction;

[0050] A suction cup with an air inlet and an air outlet is fixedly connected to the output end of the first linear drive; the first linear drive is used to drive the suction cup to insert into the glue storage chamber; and

[0051] An air pump is in communication with the air outlet of the suction cup through an air pipe.

[0052] By using the above technical scheme, when working, the suction cup sucks the sponge half ring, and then the sponge half ring is sent to the suction cup to enter the material container, and then the sponge half ring is pushed to leave between the two necking plates and enter the half pipe; specifically, the sliding seat of the material taking assembly is slidingly connected to the rack along the third direction, so that the position of the material taking assembly can be flexibly moved; the first linear drive is fixedly connected to the sliding seat and the extension direction is parallel to the first direction, so that the suction cup can be driven to insert into the glue storage chamber; the air pump is in communication with the air outlet of the suction cup through the air pipe, which cooperates with the suction cup to suck the sponge half ring, so as to conveniently take and place the sponge half ring and improve the efficiency of placing the sponge half ring in the half pipe.

[0053] Optionally, a clamping assembly is arranged on the frame and used for clamping the half pipe.

[0054] By using the clamping assembly to clamp the half pipe, the subsequent operation of placing the sponge half ring into the half pipe by using the placing assembly is facilitated.

[0055] In summary, the present application has at least one of the following beneficial technical effects:

[0056] 1. The blocking clamp arranged at the pipe opening in the protective outer pipe can prevent the cable from shaking along the protective outer pipe, reduce the abrasion of the cable and prolong the service life of the cable.

[0057] 2. By using the protective outer pipe spliced by two half pipes and fixed by the clamp, the cumbersome process of passing the cable through the traditional cylindrical protective pipe is avoided, the construction process is simplified, the construction period is shortened, and the influence on the user's power consumption is reduced.

[0058] 3. By using the blocking clamp and the flexible sponge ring to clamp the cable body, the entry of foreign matter and water into the pipe can be effectively prevented, the cable can be prevented from being in a wet state for a long time, and the safety hazard can be eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0059] Figure 1 is a structural schematic view of the protective outer pipe and the clamp in the power cable of the present application;

[0060] Figure 2 is a structural schematic view of the blocking clamp in the power cable of the present application;

[0061] Figure 3 is a structural schematic view of the blocking assembly in the power cable of the present application;

[0062] Figure 4 is a structural schematic view of the flexible sponge ring in the power cable of the present application;

[0063] Figure 5 is a structural schematic view of the sponge placing device in the manufacturing method of the present application;

[0064] Figure 6 is a structural schematic view of the placing assembly in the manufacturing method of the present application.

[0065] Explanation of reference signs: 1, cable body; 2, protective outer tube; 21, half tube; 211, avoiding groove; 212, blocking strip; 22, clamp; 3, plugging clamp; 31, outer plugging ring; 311, outer half ring; 32, flexible rubber ring; 321, flexible half ring; 33, inner plugging ring; 331, inner half ring; 4, blocking assembly; 41, outer blocking block; 411, insertion groove; 42, locking piece; 5, flexible sponge ring; 51, sponge half ring; 6, rack; 61, table top; 7, clamping assembly; 71, second linear driving piece; 72, clamping block; 8, placing assembly; 81, material containing seat; 811, material containing groove; 82, necking plate; 821, glue storage chamber; 822, glue outlet hole; 823, glue inlet hole; 83, sealing plate; 831, communication port; 84, air cylinder; 85, sliding rod; 9, material taking assembly; 91, linear motor; 911, guide rail part; 912, sliding part; 92, sliding seat; 93, first linear driving piece; 94, air suction pump; 95, suction disc. DETAILED DESCRIPTION

[0066] The following will be described in detail with reference to the accompanying drawings. Figures 1-6 The application is described in further detail. For ease of description, the application introduces orientation words such as first direction, second direction and third direction to form three-dimensional reference directions, and the orientation words used such as “first direction, second direction and third direction” can be specifically referred to the drawings shown, wherein 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.

[0067] The embodiment of the application discloses a power cable with a protective tube and a manufacturing method. Referring to Figure 1 and Figure 2 The power cable with the protective tube comprises a cable body 1, a protective outer tube 2 and a plugging clamp 3; the cable body 1 is arranged in the protective outer tube 2, and the plugging clamp 3 is arranged between the cable body 1 and the protective outer tube 2.

[0068] The protective outer tube 2 comprises two half tubes 21 and a clamp 22 arranged on the two half tubes 21, and the two half tubes 21 are spliced to form a circular tube-shaped protective outer tube 2, that is, in the cross section perpendicular to the tube length of the half tube 21, the cross section of the protective outer tube 2 is a circular ring, and the cross section of the half tube 21 is a half circular ring; the clamp 22 is sleeved on the outside of the two half tubes 21 to fix the two half tubes 21 as the protective outer tube 2.

[0069] Referring to Figure 1 and Figure 2, each of the two ends of the protective outer tube 2 is provided with a plugging clamp 3 located at the pipe opening in the protective outer tube 2; the plugging clamp 3 comprises an outer plugging ring 31, a flexible rubber ring 32 and an inner plugging ring 33; the outer plugging ring 31, the flexible rubber ring 32 and the inner plugging ring 33 are coaxially arranged, and along the length direction of the protective outer tube 2, the three are arranged in turn from the pipe opening of the protective outer tube 2 to the middle of the protective outer tube 2; the middle of the protective outer tube 2 refers to the middle part of the protective outer tube 2 in the length direction of the protective outer tube 2; one end of the flexible rubber ring 32 is fixedly connected to the outer plugging ring 31, and the other end is fixedly connected to the inner plugging ring 33;

[0070] The cable body 1 is sequentially arranged in the outer plugging ring 31, the flexible rubber ring 32 and the inner plugging ring 33, and by clamping the plugging 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, so as to reduce the wear of the cable.

[0071] Referring to Figure 1 and Figure 2 In some embodiments of the present application, the outer plugging ring 31 comprises two outer half rings 311, and / or the inner plugging ring 33 comprises two inner half rings 331, and / or the flexible rubber ring 32 comprises two flexible half rings 321; in an embodiment, the outer plugging ring 31 comprises two outer half rings 311, the inner plugging ring 33 comprises two inner half rings 331, and the flexible rubber ring 32 comprises two flexible half rings 321; in the cross section perpendicular to the length direction of the half pipe 21, the outer half ring 311, the flexible half ring 321 and the inner half ring 331 are all semicircular annular, each end of each 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 inner half ring 331, the flexible half ring 321, the outer half ring 311 and the side wall of the half pipe 21 are flush, so as 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 plugging ring 31, a flexible rubber ring 32, an inner plugging ring 33 and a protective outer tube 2 after splicing.

[0072] Referring to Figure 3 In some embodiments of the present application, the inner half ring 331 is fixedly connected to the half pipe 21; each half pipe 21 is correspondingly provided with a stop component 4 at both ends, the stop component 4 comprises an outer stop block 41 and a locking piece 42, the outer stop block 41 is provided with a slot 411 for inserting the pipe wall of the half pipe 21, when the half pipe 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 pipe 21 inserted into the slot 411, the distance between the outer stop block 41 and the inner stop block can be changed, so as to extrude the flexible rubber ring 32, increase the inner diameter of the flexible rubber ring 32, and thus the cable body 1 can be clamped more firmly;

[0073] Locking member 42 is connected to outer stop block 41 for fixing locking member 42 to half pipe 21, in the embodiment, locking member 42 is a screw, locking member 42 is located outside protective outer pipe 2, locking member 42 is threaded through outer stop block 41 and is screwed with outer stop block 41, so that the wall of protective outer pipe 2 is pressed against by locking member 42;

[0074] In some embodiments of the present application, if the end walls of two protective outer pipes 2 need to be in contact, a relief groove 211 can be formed at the end of half pipe 21 for accommodating outer stop block 41, so that the end walls of two protective outer pipes 2 can be in contact.

[0075] Referring to Figure 4 In some embodiments of the present application, a flexible sponge ring 5 in the shape of a cylinder is further included, the flexible sponge ring 5 is a melamine sponge filler; the flexible sponge ring 5 includes two sponge half rings 51 spliced into a cylinder, one sponge half ring 51 is correspondingly filled in each half pipe 21, so that the sponge half ring 51 can be clamped between the cable body 1 and the inner wall of the half pipe 21; in the cross section perpendicular to the length of the flexible sponge ring 5, the flexible sponge ring 5 is a circular ring, and the sponge half ring 51 is a semi-circular ring; the flexible sponge ring 5 is clamped between the cable body 1 and the inner wall of the half pipe 21, which can reduce the abrasion of the outer skin of the cable body 1 caused by the shaking of the cable body 1 in the protective pipe;

[0076] After the sponge half ring 51 is installed in the half pipe 21, in order to prevent the sponge half ring 51 from falling off, the inner walls of the two sides of the half pipe 21 protrude to one side of the central axis of the half pipe 21, and the flexible sponge ring 5 is stopped by the stop bar 212 to the inner side of the half pipe 21, so that the sponge half ring 51 can be prevented from falling off by the stop bar 212.

[0077] The implementation principle of the power cable with a protective pipe according to the embodiment of the present application is that the cable body 1 is placed between two half pipes 21, the cable body 1 is clamped by the blocking clamp 3 and the flexible sponge ring 5, and finally the two half pipes 21 are fixed by the clamp 22.

[0078] The embodiment of the present application further discloses a method for manufacturing the power cable with a protective pipe. The manufacturing method of the power cable with a protective pipe includes the following steps:

[0079] S1: one sponge half ring 51 is correspondingly placed in each half pipe 21, the sponge half ring 51 is fixed to the half pipe 21, and the sponge half ring 51 is located between the inner half rings 331 at the two ends of the half pipe 21;

[0080] S2: the cable is placed between two half pipes 21;

[0081] S3: the two half pipes 21 are fixed by the clamp 22;

[0082] S4: move the outer stop block 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 then fix the outer stop block 41 to the half pipe 21 with the locking piece 42.

[0083] Referring to Figure 5 , in S1, the sponge half ring 51 is placed in the half pipe 21 by using a sponge placing device; the sponge placing device includes a rack 6, a clamping assembly 7, and a placing assembly 8; the clamping assembly 7 is arranged on the rack 6 to clamp the half pipe 21;

[0084] A table top 61 is fixedly connected to the rack 6, and the clamping assembly 7 is arranged on the table top 61 and includes two clamping assemblies; each clamping assembly 7 includes a second linear drive 71 and a clamping block 72, and the driving direction of the second linear drive 71 is parallel to the third direction; in this embodiment, the second linear drive 71 is an electric push rod, the cylinder body of the second linear drive 71 is fixedly connected to the table top 61, and the push rod of the second linear drive 71 is fixedly connected to the clamping block 72; the clamping blocks 72 of 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; the half pipe 21 can be clamped by the two clamping blocks 72 by moving the two clamping blocks 72 along the third direction under the drive of the second linear drives 71;

[0085] In operation, the half pipe 21 is placed horizontally on the table top 61 with the opening of the half pipe 21 facing upward; then, the clamping blocks 72 are moved to one side of the half pipe 21 under the drive of the second linear drives 71 to clamp the half pipe 21 by the two clamping blocks 72; subsequently, the sponge half ring 51 can be placed into the half pipe 21 by the placing assembly 8.

[0086] Referring to Figure 5 and Figure 6 , the placing assembly 8 includes a material containing seat 81 and a necking plate 82; the material containing seat 81 is located directly above the clamping area and is slidably connected to the rack 6 along the first direction; specifically, a third linear drive is arranged on the rack 6, and the driving direction of the third linear drive is parallel to the first direction; in this embodiment, the third linear drive is an electric push rod, the cylinder body of the third linear drive is fixedly connected to the rack 6, and the push rod of the third linear drive is fixedly connected to the material containing seat 81; the material containing seat 81 can be moved up and down under the drive of the third linear drive to move the material containing seat 81 to the clamping area;

[0087] A material containing groove 811 is formed in the material containing seat 81 along the first direction; the groove length direction of the material containing groove 811 is the second direction, and the groove width direction of the material containing groove 811 is the third direction; the groove width of the material containing 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 sent into the material containing groove 811, the sponge half ring 51 is pushed downward to be pushed out from the bottom of the material containing groove 811;

[0088] Two necking plates 82 are fixedly connected to the end wall of the material container 81 at the opening of the material container 81 close to the table top 61, i.e. at the bottom opening of the material container 81, and are located on the two sides in the second direction. The spacing between the two necking plates 82 gradually decreases towards the side away from the material container 81, i.e. the spacing between the two necking plates 82 gradually decreases from top to bottom. The space between the two blocking strips 212 on the two sides of the half pipe 21 is used for inserting the two necking plates 82.

[0089] During operation, the third linear driving member drives the material container 81 to move downwards so that the necking plates 82 are inserted between the two blocking strips. Then, the sponge half ring 51 in the material container 81 is pushed downwards so that the sponge half ring 51 enters the half pipe 21 after passing through the area between the two necking plates 82. The sponge half ring 51 can recover the deformation and fill into the half pipe 21. Subsequently, the third linear driving member drives the material container 81 to move upwards, and the installation operation of the next sponge half ring 51 can be performed.

[0090] Referring to Figure 5 and Figure 6 , a glue storage chamber 821 is formed in the wall of the necking plate 82. A glue outlet hole 822 is formed in the side wall of the two necking plates 82 close to each other and communicates with the glue storage chamber 821. The glue outlet hole is arranged close to the bottom wall of the necking plate 82. A glue inlet hole 823 is formed in the top of the side wall of the two necking plates 82 away from each other and communicates with the glue storage chamber 821. The glue is sent from the glue inlet hole 823 into the glue storage chamber 821. When the sponge half ring 51 passes through the necking plate 82, the glue is 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 the glue. In this process, since the necking plate 82 is inserted between the two blocking strips 212 on the two half pipes 21, the glue can be prevented from adhering to the blocking strips 212.

[0091] When the glue is not needed to be discharged, in order to prevent the glue from flowing out of the glue outlet hole 822, a sealing plate 83 and a cylinder 84 are further arranged on the necking plate 82. The sealing plate 83 is in contact with the inner wall of the side of the necking plate 82 where the glue outlet hole is arranged, and a communication hole 831 is formed in the sealing plate 83. The sealing plate 83 can slide in the necking plate 82 in the second direction so that the communication hole 831 communicates with the glue outlet hole 822, or the sealing plate 83 blocks the glue outlet hole 822. The cylinder body of the cylinder 84 is fixedly connected to the end wall of the sealing plate. The piston rod of the cylinder 84 is coaxially fixedly connected with a sliding rod 85. The sliding rod 85 passes through the end wall of the necking plate 82 and is fixedly connected with the sealing plate 83, so that the sealing plate 83 is driven by the cylinder 84 to move in the second direction.

[0092] In some embodiments of the present application, a material taking assembly 9 is further included, which comprises a linear motor 91, a sliding seat 92, a first linear driving element 93, a suction pump 94, and a suction disc 95 with an air inlet and an air outlet;

[0093] The linear motor 91 has a guide rail part 911 fixedly connected to the frame 6 and a sliding part 912 slidingly connected to the guide rail part 911 in the third direction, and the sliding seat 92 is fixedly connected to the sliding part 912 in the linear motor 91 and can be driven by the linear motor 91 to move; the driving direction of the first linear driving element 93 is parallel to the first direction, and the first linear driving element 93 is a multi-stage cylinder 84, the cylinder body of the first linear driving element 93 is fixedly connected to the sliding seat 92, the piston rod of the first linear driving element 93 is fixedly connected to the suction disc 95, the suction pump 94 is fixedly connected to the shell of the suction disc 95, and the suction pump 94 is in communication with the air outlet of the suction disc 95 through an air pipe; the linear motor 91 is used to drive the first linear driving element 93 and the suction disc 95 to move to the upper side of the material containing seat 81;

[0094] During the conveying of the sponge half ring 51, the first linear driving element 93 drives the suction disc 95 to move downward to suck the sponge half ring 51, and then the linear driving element conveys the sponge half ring 51 to the upper side of the material containing seat 81, and then the first linear driving element 93 drives the sponge half ring 51 to move downward, so that the sponge half ring 51 passes between the material containing seat 81 and the two necking plates 82 and is pasted to the inner wall of the half pipe 21.

[0095] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A power cable with a protective tube, characterized in that, Comprise: A cable body (1); A protective outer tube (2), the cable body (1) is arranged in the protective outer tube (2); And A blocking clamp (3) is located at the pipe orifice in the protective outer tube (2); the blocking clamp (3) comprises: An outer blocking ring (31); An inner blocking ring (33); and A flexible rubber ring (32); The outer blocking ring (31), the flexible rubber ring (32) and the inner blocking ring (33) are coaxially arranged, and are sequentially arranged from the pipe orifice of the protective outer tube (2) to the pipe middle of the protective outer tube (2) along the pipe length direction of the protective outer tube (2); the cable body (1) is arranged in the outer blocking ring (31), the flexible rubber ring (32) and the inner blocking ring (33); The protective outer tube (2) comprises: Two half tubes (21), the cross section of the pipe wall of the half tube (21) is a semicircular ring, and the two half tubes (21) are spliced to form the protective outer tube (2) in a circular tube shape; and A clamp (22) is sleeved outside the two half tubes (21) to fix the two half tubes (21) as the protective outer tube (2); Further comprise: A flexible sponge ring (5) comprises two sponge half rings (51) spliced into a cylindrical shape, and the sponge half ring (51) is clamped between the cable body (1) and the inner wall of the half tube (21); The two sides of the half tube (21) are provided with a blocking strip (212) to one side of the central axis of the half tube (21), and the flexible sponge ring (5) is stopped to the inner side of the half tube (21) by the blocking strip (212).

2. A power cable with a protective tube according to claim 1, characterized in that, The outer blocking ring (31) comprises two outer half rings (311), and / or the inner blocking ring (33) comprises two inner half rings (331), and / or the flexible rubber ring (32) comprises two flexible half rings (321).

3. A power cable with a protective tube according to claim 2, characterized in that, The inner half ring (331) is fixedly connected to the half tube (21); the half tube (21) is provided with a stopping assembly (4) corresponding to each end, the stopping assembly (4) comprises: An outer stopping block (41) is provided with a slot (411) for inserting the pipe wall of the half tube (21), when the half tube (21) is inserted into the slot (411), the outer stopping block (41) abuts against the outer half ring (311); and A locking member (42) is connected to the outer stopping block (41) for fixing the locking member (42) to the half tube (21).

4. A method for manufacturing a power cable with a protective tube according to any one of claims 2-3, characterized in that, Comprise the following steps: S1: place a sponge half ring (51) in each half tube (21) respectively, and fix the sponge half ring (51) to the half tube (21), and make the sponge half ring (51) between the inner half ring (331) at both ends of the half tube (21); S2: place the cable body between the two half tubes (21); S3: fix the two half tubes (21) with the clamp (22); S4: moving the outer stop block (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 fixing the outer stop block (41) to the half pipe (21) with the locking piece (42).

5. A method of manufacturing a power cable with a protective tube according to claim 4, characterized in that, In S1, the sponge half ring (51) is placed on the half pipe (21) by using a sponge placing device; the sponge placing device comprises a placing assembly (8); The placing assembly (8) comprises: a material containing seat (81), a material containing groove (811) being formed through the material containing seat (81) along a first direction, a groove length direction of the material containing groove (811) being a second direction, a groove width direction of the material containing groove (811) being a third direction, the groove width of the material containing groove (811) being adapted to the diameter of the sponge half ring (51) for accommodating the sponge half ring (51); and two necking plates (82) being fixedly connected to the end wall of one opening of the material containing seat (81), and located on both sides of the second direction, the spacing between the two necking plates (82) gradually decreasing towards the side away from the material containing seat (81); the space between the two blocking strips (212) is used for inserting the two necking plates (82); a glue storage chamber (821) being formed in the plate wall of the necking plate (82), and a glue outlet hole (822) being formed in the side of the two necking plates (82) close to each other and communicating with the glue storage chamber (821).

6. A method of manufacturing a power cable with a protective tube according to claim 5, characterized in that, The sponge placing device further comprises a rack (6) and a material taking assembly (9); the material containing seat (81) is slidingly connected to the rack (6) along the first direction; the material taking assembly (9) comprises: a sliding seat (92) slidingly connected to the rack (6) along the third direction; a first linear driving piece (93) fixedly connected to the sliding seat (92), the extension direction of the first linear driving piece (93) being parallel to the first direction; a suction cup (95) having an air inlet and an air outlet, the suction cup (95) being fixedly connected to the output end of the first linear driving piece (93); the first linear driving piece (93) is used to drive the suction cup (95) to insert into the glue storage chamber (821); and an air pump (94) communicating with the air outlet of the suction cup (95) through an air pipe.

7. A method of manufacturing a power cable with a protective tube according to claim 6, characterized in that, a clamping assembly (7) is further provided on the rack (6) and used for clamping the half pipe (21).

Images