Circuit design cable butt joint structure for electric power engineering

Abstract

The invention discloses a line design cable butt joint structure for electric power engineering, and relates to the technical field of cable butt joint, the line design cable butt joint structure comprises a butt joint cylinder, the two ends of the butt joint cylinder are provided with mounting mechanisms for placing inserted cables, each mounting mechanism comprises a placing cylinder, and the placing cylinders are symmetrically installed at the two ends of the butt joint cylinder; a limiting mechanism for fixedly limiting movement of the cable is arranged on the inner wall of the placing cylinder, an adjusting mechanism for adjusting the distance between cable joints is arranged on the outer wall, close to the placing cylinder, of the butt joint cylinder, the cable is inserted into the placing cylinder, the annular plate wraps the part, needing to be connected, of the cable, and the cable is pulled to be extruded by the annular plate; and the extrusion stress at the cable joint is more uniform, so that the electric stress distribution at the cable joint is more uniform, and overhigh local electric stress caused by non-uniform electric field distribution is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of cable docking, in particular to a cable docking structure for line design used in power engineering. Background Art

[0002] A cable is a wire that transmits electricity or information from one place to another, usually a rope-like cable made of several or several groups of wires (at least two in each group). Each group of wires is insulated from each other and often twisted around a center, with the entire outside covered with a highly insulating covering.

[0003] A Chinese patent discloses a waterproof, insulated cable head docking structure and a method of using the same (Announcement No. CN117039786A), comprising a body, a tray fixedly sleeved on the outer edge of the body, an annular groove formed on the top of the tray, and a slider slidably connected to the inner wall of the annular groove. By providing a docking ring 2, a fixed block, a docking ring 1, a tray, a slider, and an annular groove device, the user can fix the docking ring 2 during the installation of the cable head through the cooperation of the tray, the vertical pole, and the fixed rod. At the same time, by utilizing the movable characteristics of the annular groove and the slider, when the user rotates the docking ring 2, the vertical pole and the fixed rod can both apply tension to the body, so that the length of the wire head at one end outside the docking ring 1 can be adjusted, and the user does not need to disassemble and reinstall the cable head to adjust the length of the wire head, which not only reduces the workload of the user, but also increases the contact area between the wire head and the conductor, thereby improving the conductive effect.

[0004] When installing the docking cable, the above-mentioned existing cable docking connection energizing ring or connector needs to use a clamp to clamp and squeeze the connection between the cable and the docking mechanism to prevent the cable from detaching, so that the docking mechanism can squeeze and fix the cable. However, squeezing and fixing the cable will easily cause uneven electric field distribution at the cable docking point, resulting in excessive local electric stress and uneven electric stress at the cable connection, thereby affecting the stability and safety of the docking structure. Therefore, the present invention provides a cable docking structure designed for power engineering lines to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a cable docking structure for power engineering line design, so as to solve the problem in the above background technology that squeezing and fixing cables may easily cause uneven electric field distribution at the cable docking point.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A cable docking structure for line design in electric power engineering includes a docking tube, both ends of which are provided with installation mechanisms for placing and inserting cables, the installation mechanism includes a placement tube, and the placement tube is symmetrically installed at both ends of the docking tube, the inner wall of the placement tube is provided with a limit mechanism for fixing and restricting the movement of the cable, and the outer wall of the docking tube close to the placement tube is provided with an adjustment mechanism for the distance between mobile cable joints.

[0008] As a further solution of the present invention, a placement ring is fixedly installed on one end of the placement tube away from the docking tube, a plurality of sliding holes are opened at both ends of the docking tube close to the placement ring, a plurality of sliding rods are installed in an array on one end of the placement ring close to the sliding hole, and the sliding rods are slidably inserted into the sliding holes.

[0009] As a further solution of the present invention, the limiting mechanism includes a circular ring plate, and a plurality of fixing grooves are arranged in an array on the inner wall of the placing cylinder, and fixing rods are fixedly installed in the fixing grooves, and fixing cylinders are rotatably sleeved on the outer walls of the fixing rods, and a winding spring is fixedly installed between the fixing grooves and the fixing cylinders.

[0010] As a further solution of the present invention, a connecting rod is fixedly installed on the outer wall of the fixed cylinder, a connecting block is fixedly installed on the end of the connecting rod away from the fixed cylinder, and the annular plate is rotatably installed on the end of the connecting block away from the placing cylinder, a plurality of annular grooves are formed on the end of the annular plate away from the connecting block, a plurality of arc rods are fixedly installed on the side end of the annular plate close to the annular groove, and the arc rods are slidably installed in the annular groove.

[0011] As a further solution of the present invention, a mounting ring is fixedly installed on the end of the placement tube away from the placement ring, a movable plate is slidably installed on the end of the mounting ring close to the placement tube, a plurality of limit rods are arrayed on the outer wall of the movable plate, a stop block is fixedly installed on the end of the limit rod away from the movable plate, and a limit block is fixedly installed on the upper end of the connecting block close to the stop block.

[0012] As a further solution of the present invention, a control rope is fixedly installed on one end of the connecting block close to the limit block, a sliding ring is fixedly installed on the end of the control rope away from the connecting block, and the sliding ring is slidably sleeved on the outer wall of the docking tube, and a sliding waist groove is opened on the side end of the docking tube close to the control rope.

[0013] As a further solution of the present invention, the adjustment mechanism includes a worm, a mounting box is fixedly installed on the side end of the docking tube, and the worm is rotatably installed on the inside of the mounting box, a nut is fixedly installed on the upper end of the worm, and the nut is rotatably installed on the upper end of the docking tube, and the side end of the worm close to the docking tube is threadedly connected with a control gear ring, and the control gear ring is rotatably installed on the inner wall of the docking tube.

[0014] As a further solution of the present invention, a threaded ring is provided on the outer wall of the placement tube away from the placement ring, a threaded tube is fixedly installed on the inner wall of the control gear ring, and a threaded groove matching the threaded ring is provided on the inner wall of the threaded tube.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When the present invention is used, the cable is inserted into the placement tube, the annular plate wraps the portion of the cable to be connected, and the cable is pulled so that the cable begins to be squeezed by the annular plate, so that the squeezing force at the cable joint is more uniform, thereby making the electric stress distribution at the cable connection more uniform, avoiding uneven electric field distribution and causing excessive local electric stress.

[0017] 2. When the present invention is used, after the cable connector is inserted into the placement tube, when the cable connector wants to be moved out of the placement tube, the connecting rod rotates to increase the circular plate to squeeze the cable connector, thereby increasing the friction between the circular plate and the cable connector, making it more convenient to install and fix the cable connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The main structure schematic diagram of a cable docking structure designed for a power engineering line.

[0019] Figure 2 The present invention is a schematic diagram of the disassembled structure of the main body in a cable docking structure designed for a power engineering line.

[0020] Figure 3 The present invention is a schematic diagram of a structure for placing a tube in a cable docking structure designed for a power engineering line.

[0021] Figure 4 The present invention is a structural schematic diagram of an installation ring in a cable docking structure designed for a power engineering line.

[0022] Figure 5 The schematic diagram of the structure of the circular ring plate in the cable docking structure designed for a power engineering line.

[0023] Figure 6 The present invention is a structural schematic diagram of a circular groove in a cable docking structure designed for a power engineering line.

[0024] Figure 7 The present invention is a structural schematic diagram of a butt joint sleeve in a cable butt joint structure designed for a power engineering line.

[0025] Figure 8 The present invention is a schematic diagram of the structure of a threaded barrel in a cable docking structure designed for a power engineering line.

[0026] In the figure: 1. docking tube;

[0027] 2. Installation mechanism; 201. Placement cylinder; 202. Placement ring; 203. Sealing cylinder; 204. Sliding hole; 205. Sliding rod; 206. Rubber ring;

[0028] 3. Limiting mechanism; 301. Circular ring plate; 302. Fixing groove; 303. Fixing rod; 304. Fixing cylinder; 305. Winding spring;

[0029] 306, connecting rod; 307, connecting block; 308, annular groove; 309, arc rod;

[0030] 310, mounting ring; 311, moving plate; 312, telescopic spring; 313, limiting rod; 314, limiting groove; 315, stopper; 316, limiting block;

[0031] 317, control rope; 318, sliding ring; 319, sliding waist groove; 320, limiting ring; 321, disassembly groove;

[0032] 4. Adjusting mechanism; 401. Worm; 402. Mounting box; 403. Nut; 404. Control gear ring; 405. Thread ring; 406. Thread barrel; 407. Thread groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 8 In an embodiment of the present invention, a cable docking structure for a line design of an electric power engineering project includes a docking tube 1, and installation mechanisms 2 for placing and inserting cables are arranged at both ends of the docking tube 1. The installation mechanism 2 includes a placement tube 201, and the placement tube 201 is symmetrically installed at both ends of the docking tube 1. The installation mechanism 2 makes it more convenient to install the docking cable. The inner wall of the placement tube 201 is provided with a limiting mechanism 3 for fixing and limiting the movement of the cable. The limiting mechanism 3 makes the extrusion force at the cable joint more uniform, thereby making the electrical stress distribution at the cable connection more uniform. An adjustment mechanism 4 for moving the distance between the cable joints is arranged on the outer wall of the docking tube 1 close to the placement tube 201. The adjustment mechanism 4 arranged on the docking tube 1 is helpful for wiring.

[0035] See also Figures 1 to 3A placing ring 202 is fixedly installed on the end of the placing tube 201 away from the docking tube 1, and a sealing tube 203 is fixedly installed on the end of the placing ring 202 close to the docking tube 1, and the sealing tube 203 is slidably sleeved on the outer wall of the docking tube 1, and a rubber ring 206 is fixedly installed on the inner wall of the placing tube 201 away from the docking tube 1. The sealing tube 203 arranged on the placing ring 202 keeps the gap between the placing tube 201 and the docking tube 1 sealed, and a plurality of sliding holes 204 are opened at both ends of the docking tube 1 close to the installation of the placing ring 202, and a plurality of sliding rods 205 are installed in an array on the end of the placing ring 202 close to the sliding hole 204, and the sliding rods 205 are slidably inserted into the sliding hole 204, and the sliding rods 205 arranged on the placing ring 202 prevent the placing tube 201 from rotating during the sliding process.

[0036] See also Figures 1 to 5 The limiting mechanism 3 includes a circular ring plate 301, and a plurality of fixed grooves 302 are arranged in an array on the inner wall of the placing cylinder 201. Fixed rods 303 are fixedly installed in the fixed grooves 302, and fixed cylinders 304 are rotatably sleeved on the outer walls of the fixed rods 303. A winding spring 305 is fixedly installed between the fixed groove 302 and the fixed cylinder 304. When the fixed cylinder 304 rotates, the winding spring 305 starts to store energy, and the winding spring 305 causes the circular ring plate 301 to rotate and squeeze the cable.

[0037] See also Figures 2 to 6 , a connecting rod 306 is fixedly installed on the outer wall of the fixed cylinder 304. When the connecting rod 306 is in the fixed groove 302, the winding spring 305 is in an energy storage state, and a connecting block 307 is fixedly installed on the end of the connecting rod 306 away from the fixed cylinder 304, and the annular plate 301 is rotatably installed on the connecting block 307 at the end away from the placing cylinder 201, and a plurality of annular grooves 308 are opened on the end of the annular plate 301 away from the connecting block 307, and a plurality of arc rods 309 are fixedly installed on the side end of the annular groove 308 of the annular plate 301, and the arc rods 309 are slidably installed in the annular groove 308, and the end of the arc rod 309 away from the annular plate 301 is set to a barb shape (not shown in the figure), and the barb set on the arc rod 309 increases the force required for the cable to move when the cable moves, so that the cable docking device will not move after the cable is installed.

[0038] See also Figures 2 to 6The end of the placement tube 201 away from the placement ring 202 is fixedly installed with a mounting ring 310, and the end of the mounting ring 310 close to the placement tube 201 is slidably installed with a moving plate 311, and a telescopic spring 312 is fixedly installed between the moving plate 311 and the mounting ring 310. When the telescopic spring 312 makes the cable no longer squeeze the moving plate 311, the telescopic spring 312 pushes the moving plate 311 to move and reset, and a plurality of limiting rods 313 are installed in an array on the outer wall of the moving plate 311, and a plurality of limiting grooves that match the size of the limiting rods 313 are opened on the placement tube 201 314, and the limiting rod 313 is slidably installed in the limiting groove 314 opened on the placing cylinder 201, the end of the limiting rod 313 away from the movable plate 311 is fixedly installed with a stopper 315, and the upper end of the connecting block 307 close to the stopper 315 is fixedly installed with a limiting block 316. Under normal circumstances, the stopper 315 is inserted into the groove set by the limiter block 316, so that the connecting block 307 does not move. When the stopper 315 moves out of the groove set by the limiter block 316, the winding spring 305 makes the connecting block 307 start to rotate, thereby playing a limiting role.

[0039] See also Figures 2 to 7 , a control rope 317 is fixedly installed at one end of the connecting block 307 near the limit block 316, and the control rope 317 passes through the placement tube 201, and the length of the control rope 317 is the radius of the docking tube 1, and a sliding ring 318 is fixedly installed at one end of the control rope 317 away from the connecting block 307, and the sliding ring 318 is slidably sleeved on the outer wall of the docking tube 1. When the sliding ring 318 is pushed, the sliding ring 318 drives the control rope 317 to start moving, and the control rope 317 moves to pull the connecting block 307 to move, and the annular plates 301 start to expand away from each other, thereby making the installation and disassembly of the cable docking structure more convenient, and a sliding waist is provided at the side end of the docking tube 1 near the control rope 317 Groove 319, the sliding waist groove 319 opened on the docking tube 1 facilitates the control rope 317 to pass through the docking tube 1, making the movement of the control rope 317 more convenient. A limit ring 320 is fixedly sleeved on the outer wall of the docking tube 1 close to the sliding waist groove 319, and the limit ring 320 is made of elastic material, and the inner wall of the sliding ring 318 is opened with a disassembly groove 321 that matches the size of the limit ring 320. When the sliding ring 318 is moved, the disassembly groove 321 set on the inner wall of the sliding ring 318 is moved to the side of the limit ring 320 installed on the docking tube 1, and the limit ring 320 is stuck in the disassembly groove 321, so that the sliding ring 318 will not move without human intervention, thereby playing a limiting role.

[0040] See also Figures 2 to 8The adjusting mechanism 4 includes a worm 401, a mounting box 402 is fixedly mounted on the side end of the docking tube 1, and the worm 401 is rotatably mounted on the inside of the mounting box 402, a nut 403 is fixedly mounted on the upper end of the worm 401, and the nut 403 is rotatably mounted on the upper end of the docking tube 1, and the nut 403 arranged on the worm 401 allows the staff to install and connect by simply using a tool to rotate the nut 403, making the operation more convenient, and a control gear ring 404 is threadedly connected to the side end of the worm 401 close to the docking tube 1, and the control gear ring 404 is rotatably mounted on the inner wall of the docking tube 1, and the worm 401 makes the control gear ring 404 fixed and limited when the worm 401 is no longer rotated to drive the control gear ring 404 to rotate, so that the control gear ring 404 rotates when the worm 401 is not rotated;

[0041] See also Figures 2 to 8 , a threaded ring 405 is provided on the outer wall of the placement cylinder 201 away from the placement ring 202, and the thread direction of the threaded ring 405 is set in the opposite direction. The reversely set threaded ring 405 makes the movement direction of the placement cylinder 201 opposite, and a threaded cylinder 406 is fixedly installed on the inner wall of the control gear ring 404, and a threaded groove 407 matching the threaded ring 405 is provided on the inner wall of the threaded cylinder 406. When the control gear ring 404 rotates, the control gear ring 404 drives the threaded cylinder 406 to start rotating, and the symmetrically installed placement cylinder 201 starts to move in the same direction under the action of the opposite threaded ring 405, so that the connection points of the cables are closer to each other. All of the above structures except the sealing cylinder 203, rubber ring 206, limit ring 320 and sliding ring 318 are insulating mechanisms. They are all electrically conductive materials, and the entire device is conductive, that is to say, when the cable is inserted into the placement cylinder 201, the two cables have the effect of being connected.

[0042] The working principle of the present invention is: when it is necessary to install a docking cable, one end of the cable connector is inserted into the placement tube 201, so that the cable plug pushes the moving plate 311 to move, and the moving plate 311 drives the limit rod 313 to move, and the stopper 315 moves and no longer blocks the limit block 316, so that when installing the cable, the cable needs to be inserted into the cable docking structure to fix the cable, thereby avoiding a reduction in the number of cables entering the connection part, resulting in a reduction in the power-on effect;

[0043] When the stop block 315 moves and no longer blocks the limit block 316, the winding spring 305 pushes the fixed cylinder 304 to start rotating, the connecting rod 306 drives the connecting block 307 to start rotating, and the arc rod 309 slides into the annular groove 308 of the annular plate 301, and the annular plates 301 begin to shrink closer to each other until the annular plates 301 are completely fitted to the surface of the cable connector, so that after the cable connector is inserted into the placement cylinder 201, when the cable connector wants to move out of the placement cylinder 201, the connecting rod 306 rotates to increase the annular plate 301 to squeeze the cable connector, thereby increasing the friction between the annular plate 301 and the cable connector, making it more convenient to install and fix the cable connector.

[0044] After the circular plate 301 wraps the cable connector, the staff uses a tool to rotate the nut 403, and the nut 403 drives the worm 401 to start rotating. The rotation of the worm 401 drives the control gear ring 404 to start rotating, and the threaded cylinder 406 starts rotating. The placement cylinder 201 threadedly connected at both ends of the threaded cylinder 406 starts to move. The movement of the placement cylinder 201 increases the squeezing force of the circular plate 301 on the cable connector inserted into the placement cylinder 201, making the squeezing force at the cable connector more uniform, thereby making the electrical stress distribution at the cable connection more uniform.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cable docking structure for power engineering line design, comprising a docking sleeve (1), characterized in that: Both ends of the docking tube (1) are provided with mounting mechanisms (2) for placing and inserting cables, the mounting mechanisms (2) comprising a placement tube (201), and the placement tube (201) is symmetrically mounted at both ends of the docking tube (1), the inner wall of the placement tube (201) is provided with a limit mechanism (3) for fixing and limiting the movement of the cable, and the outer wall of the docking tube (1) close to the placement tube (201) is provided with an adjustment mechanism (4) for moving the distance between cable connectors.

2. The cable docking structure for line design of electric power engineering according to claim 1, characterized in that: A placement ring (202) is fixedly installed at one end of the placement tube (201) away from the docking tube (1), and a plurality of sliding holes (204) are provided at both ends of the docking tube (1) close to the placement ring (202). A plurality of sliding rods (205) are installed in an array at one end of the placement ring (202) close to the sliding hole (204), and the sliding rods (205) are slidably inserted into the sliding hole (204).

3. The cable docking structure for line design of electric power engineering according to claim 1, characterized in that: The limiting mechanism (3) comprises a circular ring plate (301), a plurality of fixing grooves (302) are arranged in an array on the inner wall of the placement cylinder (201), fixing rods (303) are fixedly installed in the fixing grooves (302), a fixing cylinder (304) is rotatably sleeved on the outer wall of the fixing rod (303), and a winding spring (305) is fixedly installed between the fixing groove (302) and the fixing cylinder (304).

4. A cable docking structure for line design for electric power engineering according to claim 3, characterized in that: A connecting rod (306) is fixedly mounted on the outer wall of the fixed cylinder (304); a connecting block (307) is fixedly mounted on one end of the connecting rod (306) away from the fixed cylinder (304); and the annular plate (301) is rotatably mounted on one end of the connecting block (307) away from the placement cylinder (201); a plurality of annular grooves (308) are formed on one end of the annular plate (301) away from the connecting block (307); a plurality of arc rods (309) are fixedly mounted on the side end of the annular plate (301) close to the annular groove (308); and the arc rods (309) are slidably mounted in the annular groove (308).

5. A cable docking structure for power engineering line design according to claim 4, characterized in that: A mounting ring (310) is fixedly mounted on one end of the placement tube (201) away from the placement ring (202); a movable plate (311) is slidably mounted on one end of the mounting ring (310) close to the placement tube (201); a plurality of limit rods (313) are arrayed on the outer wall of the movable plate (311); a stopper (315) is fixedly mounted on one end of the limit rod (313) away from the movable plate (311); and a limiter (316) is fixedly mounted on the upper end of each connection block (307) close to the stopper (315).

6. A cable docking structure for power engineering line design according to claim 5, characterized in that: A control rope (317) is fixedly installed on one end of the connecting block (307) close to the limit block (316), and a sliding ring (318) is fixedly installed on one end of the control rope (317) away from the connecting block (307), and the sliding ring (318) is slidably sleeved on the outer wall of the docking tube (1), and a sliding waist groove (319) is opened on the side end of the docking tube (1) close to the control rope (317).

7. The cable docking structure for power engineering line design according to claim 2, characterized in that: The adjustment mechanism (4) comprises a worm (401), a mounting box (402) is fixedly mounted on the side end of the docking tube (1), and the worm (401) is rotatably mounted on the inside of the mounting box (402), a nut (403) is fixedly mounted on the upper end of the worm (401), and the nut (403) is rotatably mounted on the upper end of the docking tube (1), and a control gear ring (404) is threadedly connected to the side end of the worm (401) close to the docking tube (1), and the control gear ring (404) is rotatably mounted on the inner wall of the docking tube (1).

8. A cable docking structure for line design for electric power engineering according to claim 7, characterized in that: A threaded ring (405) is provided on the outer wall of the placement cylinder (201) away from the placement ring (202), a threaded cylinder (406) is fixedly mounted on the inner wall of the control gear ring (404), and a threaded groove (407) matching the threaded ring (405) is provided on the inner wall of the threaded cylinder (406).

Images