Insulating protective sleeve for protective wiring of thermal power generating unit

Abstract

The utility model relates to the technical field of cable wiring, and especially relates to a thermal power generating unit protection wiring insulation protective sleeve. The device comprises a lower protective sleeve, a pressing block and an upper protective sleeve, a clamping mechanism is assembled between the lower protective sleeve and the pressing block, and a protective maintenance mechanism is assembled between the lower protective sleeve and the upper protective sleeve. According to the utility model, through the structural design of the clamping mechanism, the device enables a pressing block to extrude the two sides of two matching blocks through rotating a knob, so that the two matching blocks are close to each other to realize the pressing of a cable, and the wiring efficiency is improved; through the structural design of the protection maintenance mechanism, flexible opening and closing between a lower protection sleeve and an upper protection sleeve are realized by rotating a butterfly screw, and inspection and maintenance of cable wiring are facilitated; and through the structural design of the pressing mechanism, a screw pressing cap extrudes one end of a pressing cylinder by rotating a convex lug, so that the cable is stably and firmly pressed in the pressing cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of cable wiring, in particular to an insulation protection sleeve for the protection wiring of thermal power units. Background Art

[0002] The wiring protection sleeve in a power plant plays a key role in the power system. It is a device designed specifically to protect the internal wiring in a power plant. With the continuous growth of power demand and the rapid development of power technology, the complexity and importance of the wiring in a power plant have become increasingly prominent, and the importance of the wiring protection sleeve has also increased accordingly. These protection sleeves are usually made of high-strength and corrosion-resistant materials, such as modified composite materials, polypropylene (PP), polyethylene (PE), etc., to ensure stable performance in harsh environments. Their main function is to prevent the wiring from being interfered with and damaged by the external environment, such as ultraviolet radiation, chemical corrosion, mechanical impact, etc., thereby ensuring the safe and stable operation of the wiring in the power plant. The existing cables used for power transmission have a relatively thick diameter. When two cables are connected together, if the joint is exposed, the wire ends are easily broken due to pulling;

[0003] For example, Patent CN211556838U discloses an electrical wiring insulation protection device for a power plant, which includes at least two docking sleeves. An outer insulation sleeve is sleeved on the docking sleeve. A connecting pipe is installed inside the outer insulation sleeve. Clips are annularly and evenly installed at one port of the connecting pipe. Connecting pieces are annularly and evenly installed at both ports of the outer insulation sleeve. Through holes are provided on the connecting pieces, and screws are inserted through the through holes. Threaded holes are provided on the docking sleeve at positions corresponding to each clip. The screws are threadedly connected to the threaded holes. A docking pipe is installed inside the outer insulation sleeve, and the docking sleeve is sleeved on the docking pipe. When the docking sleeve is sleeved on the docking pipe, it can ensure that the docking sleeves are correctly docked without misalignment, and after docking, they are more stable under the limitation of the outer insulation sleeve and the docking pipe. The screws press against the clips. When the clips are pressed tightly on the cable outer skin, the friction resistance of the soft pieces to the cable restricts the movement of the wiring insulation protection device on the cable, and the fastening on the cable is better.

[0004] When using the above technology, it is found that the following technical problems exist in the existing technology: For an existing electrical wiring insulation protection device for a power plant, the wiring of the cable is rather troublesome. Eight screws need to be screwed respectively for tightening, and the wiring efficiency is relatively low. Therefore, there is a certain room for improvement. For this reason, we design an insulation protection sleeve for the protection wiring of thermal power units to provide another technical solution for the above technical problems. Summary of the Utility Model

[0005] Based on this, it is necessary to provide an insulation protection sleeve for the protection wiring of thermal power units to solve the technical problems of rapid wiring, firm wiring, and convenient maintenance.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An insulating protection sleeve for the protection wiring of a thermal power unit, comprising a lower protection sleeve, a pressing block and an upper protection sleeve. Two pressing blocks are assembled inside the lower protection sleeve. One side of the top of the lower protection sleeve is rotatably connected to the upper protection sleeve. A clamping mechanism is assembled between the lower protection sleeve and the pressing block, and a protection and maintenance mechanism is assembled between the lower protection sleeve and the upper protection sleeve;

[0008] The clamping mechanism includes a clamping base, a guide rod, a mounting strip, a threaded screw rod, a knob, a bearing, a guide plate, a mating block and a limiting plate. Two clamping bases are fixed inside the lower protection sleeve. Both ends of the top of the clamping base are fixed with guide rods. One mounting strip is fixed at the top of the two guide rods. The threaded screw rod is threadedly connected inside the mounting strip. The knob is fixed at the top of the threaded screw rod. The bearing is fixed at the bottom of the threaded screw rod. The bearing is fixed to the pressing block. Guide plates are fixed at both ends of the pressing block. The guide plates are slidably connected to the guide rods. Two mating blocks are slidably connected inside the pressing block. The limiting plate is fixed at the bottom of the mating block. The mating block and the limiting plate are both slidably connected to the clamping base.

[0009] Preferably, the protection and maintenance mechanism includes a connecting platform, a rotating shaft, a first fixing block, a second fixing block and a butterfly screw. Two connecting platforms are fixed on one side of the top of the lower protection sleeve. One rotating shaft is rotatably connected inside the two connecting platforms. The rotating shaft is fixed to the upper protection sleeve. One first fixing block is fixed on one side of the lower protection sleeve. One second fixing block is fixed on one side of the upper protection sleeve. The positions of the first fixing block and the second fixing block correspond to each other. A butterfly screw is threadedly connected inside the first fixing block and the second fixing block.

[0010] Preferably, pressing mechanisms are fixed at both ends of the lower protection sleeve. The pressing mechanism includes a pressing cylinder, a screw pressing cap and an opening groove. Pressing cylinders are fixed at both ends of the lower protection sleeve. The screw pressing cap is threadedly connected to the outside of one end of the pressing cylinder. A plurality of opening grooves are formed inside one end of the pressing cylinder.

[0011] Preferably, a sealing ring is fixed inside the pressing cylinder. A cable is in fit contact with the inside of the sealing ring. The threaded end of the pressing cylinder is in a conical shape.

[0012] Preferably, lug ears are fixed on both sides of the outside of the screw pressing cap.

[0013] Preferably, a gasket is arranged between the lower protection sleeve and the upper protection sleeve.

[0014] It can be undoubtedly seen that through the above technical solutions of this application, the technical problems to be solved by this application can surely be solved.

[0015] Meanwhile, through the above technical solutions, the utility model at least has the following beneficial effects:

[0016] 1. Through the structural design of the clamping mechanism, the device squeezes both sides of the two mating blocks by rotating the knob, making the two mating blocks approach each other to clamp the cable, improving the wiring efficiency of the cable and enhancing the flexibility of the device.

[0017] 2. Through the structural design of the protection and maintenance mechanism, the device can flexibly open and close between the lower protective cover and the upper protective cover by rotating the butterfly screw, which is beneficial for the inspection and maintenance of cable wiring.

[0018] 3. Through the structural design of the pressing mechanism, the device squeezes one end of the pressing cylinder by rotating the lug, so that the cable is firmly pressed inside the pressing cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 It is a schematic diagram of the connection structure of the lower protective cover, pressing block and upper protective cover of the present utility model;

[0022] Figure 3 It is a schematic diagram of the sectional connection structure of the lower protective cover of the present utility model;

[0023] Figure 4 It is a schematic diagram of the sectional connection structure of the upper protective cover of the present utility model;

[0024] Figure 5 It is a schematic diagram of the connection structure of the pressing cylinder, screw pressing nut and cable of the present utility model;

[0025] Figure 6 It is a schematic diagram of the connection structure of the lower protective cover, upper protective cover and sealing gasket of the present utility model.

[0026] In the figure: 1. Lower protective sleeve; 2. Pressing block; 3. Upper protective sleeve; 4. Clamping base; 5. Guide rod; 6. Mounting strip; 7. Threaded screw rod; 8. Knob; 9. Bearing; 10. Guide plate; 11. Fitting block; 12. Limiting plate; 13. Connecting platform; 14. Rotating shaft; 15. First fixing block; 16. Second fixing block; 17. Wing nut; 18. Pressing cylinder; 19. Screw pressing nut; 20. Opening groove; 21. Sealing ring; 22. Lug; 23. Cable; 24. Gasket. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] In order to enable those skilled in the art of this technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0029] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] Embodiment 1

[0032] Referring to Figure 1 - Figure 6 , an insulation protective sleeve for the protection wiring of a thermal power unit, comprising a lower protective sleeve 1, a pressing block 2 and an upper protective sleeve 3. Two pressing blocks 2 are assembled inside the lower protective sleeve 1. One side of the top of the lower protective sleeve 1 is rotatably connected to the upper protective sleeve 3. A clamping mechanism is assembled between the lower protective sleeve 1 and the pressing block 2, and a protective maintenance mechanism is assembled between the lower protective sleeve 1 and the upper protective sleeve 3;

[0033] The clamping mechanism includes a clamping base 4, guide rods 5, mounting bars 6, threaded lead screws 7, knobs 8, bearings 9, guide plates 10, mating blocks 11 and limit plates 12. Two clamping bases 4 are fixed to the inner side of the lower protective sleeve 1. Guide rods 5 are fixed to both ends of the top of the clamping base 4. A mounting bar 6 is fixed to the tops of the two guide rods 5. A threaded lead screw 7 is threadedly connected inside the mounting bar 6. A knob 8 is fixed to the top of the threaded lead screw 7. A bearing 9 is fixed to the bottom of the threaded lead screw 7. The bearing 9 is fixed to the pressing block 2. Guide plates 10 are fixed to both ends of the pressing block 2. The guide plates 10 are slidably connected to the guide rods 5. Two mating blocks 11 are slidably connected to the inner side of the pressing block 2. A limit plate 12 is fixed to the bottom of the mating block 11. The mating blocks 11 and the limit plates 12 are both slidably connected to the clamping base 4. When it is necessary to butt-clamp two cable wires 23, rotate the knob 8. The knob 8 drives the threaded lead screw 7 to rotate. The threaded lead screw 7 drives the bearing 9. The bearing 9 drives the pressing block 2 to move downward. The pressing block 2 drives the guide plates 10 at both ends to slide on the outer surface of the guide rods 5. The pressing block 2 squeezes the two mating blocks 11 on the inner side. The two mating blocks 11 drive the corresponding limit plates 12. The mating blocks 11 and the limit plates 12 slide and approach inside the clamping base 4. The two mating blocks 11 clamp the cable wires 23. Repeating the above actions realizes the butt-clamping of the two cable wires 23.

[0034] Pressing mechanisms are fixed to both ends of the lower protective sleeve 1. The pressing mechanism includes a pressing cylinder 18, a screw nut 19 and an opening groove 20. Pressing cylinders 18 are fixed to both ends of the lower protective sleeve 1. A screw nut 19 is threadedly connected to the outside of one end of the pressing cylinder 18. A plurality of opening grooves 20 are formed inside one end of the pressing cylinder 18. A sealing ring 21 is fixed inside the pressing cylinder 18. The cable wire 23 is in fitting contact with the inside of the sealing ring 21. The threaded end of the pressing cylinder 18 is conical in shape. Lugs 22 are fixed to both sides of the outside of the screw nut 19. When it is necessary to press the device, insert the cable wires 23 into the pressing cylinders 18 at both ends. The ends of the two cable wires 23 that are close to each other are butted inside the lower protective sleeve 1 and the upper protective sleeve 3. Through the setting of the lugs 22, it is convenient and labor-saving to rotate the screw nut 19 on the surface of the pressing cylinder 18. Rotate the lug 22. The lug 22 drives the screw nut 19 to rotate. The screw nut 19 squeezes one end of the pressing cylinder 18. Through the setting of the opening groove 20, the squeezing effect is better. Through the setting of the sealing ring 21, sealing can be achieved when pressing the cable wire 23, so that there will be no gaps, and the functions of insulation and waterproofing can be realized.

[0035] A gasket 24 is provided between the lower protective sleeve 1 and the upper protective sleeve 3. Through the setting of the gasket 24, the sealing performance is good when the lower protective sleeve 1 and the upper protective sleeve 3 are closed, which can effectively achieve waterproof insulation and effectively prevent rainwater from entering its interior.

[0036] Embodiment 2

[0037] Reference Figure 4 Figure 4 , an insulating protective sleeve for the protection wiring of a thermal power unit. The protection and maintenance mechanism includes a connecting platform 13, a rotating shaft 14, a first fixing block 15, a second fixing block 16 and a wing screw 17. One side of the top of the lower protective sleeve 1 is fixed with two connecting platforms 13. A rotating shaft 14 is rotatably connected inside the two connecting platforms 13. The rotating shaft 14 is fixed to the upper protective sleeve 3. One side of the lower protective sleeve 1 is fixed with a first fixing block 15. One side of the upper protective sleeve 3 is fixed with a second fixing block 16. The positions of the first fixing block 15 and the second fixing block 16 correspond to each other. A wing screw 17 is threadedly connected inside the first fixing block 15 and the second fixing block 16; when the device needs to be inspected and maintained, rotate the wing screw 17 so that the threaded end of the wing screw 17 exits from the inside of the first fixing block 15, pull the wing screw 17, the wing screw 17 drives the second fixing block 16, and the second fixing block 16 drives the upper protective sleeve 3 to rotate around the rotating shaft 14, then the lower protective sleeve 1 and the upper protective sleeve 3 can be opened for convenient inspection and maintenance. When the inspection and maintenance are completed, perform the reverse operation to close the lower protective sleeve 1 and the upper protective sleeve 3 to protect the internal parts of the device, which can improve the service life of the device and has good practicability;

[0038] The use process of an insulating protective sleeve for the protection wiring of a thermal power unit provided by the present utility model is as follows:

[0039] When two cable lines 23 need to be butted and clamped, since two clamping bases 4 are fixed inside the lower protective sleeve 1, guide rods 5 are fixed at both ends of the top of the clamping base 4. An installation strip 6 is fixed at the top of the two guide rods 5. A threaded lead screw 7 is threadedly connected inside the installation strip 6. A knob 8 is fixed at the top of the threaded lead screw 7. A bearing 9 is fixed at the bottom of the threaded lead screw 7. The bearing 9 is fixed to the pressing block 2. Guide plates 10 are fixed at both ends of the pressing block 2. The guide plates 10 are slidably connected to the guide rods 5. Two matching blocks 11 are slidably connected inside the pressing block 2. A limiting plate 12 is fixed at the bottom of the matching block 11. The matching block 11 and the limiting plate 12 are both slidably connected to the clamping base 4; then rotate the knob 8, the knob 8 drives the threaded lead screw 7 to rotate, the threaded lead screw 7 drives the bearing 9, the bearing 9 drives the pressing block 2 to move downward, the pressing block 2 drives the guide plates 10 at both ends to slide on the outer surface of the guide rod 5, the pressing block 2 squeezes the two matching blocks 11 inside, the two matching blocks 11 drive the corresponding limiting plates 12, and the matching blocks 11 and the limiting plates 12 slide close inside the clamping base 4, and the two matching blocks 11 clamp the cable line 23. Repeat the above actions to realize the butt clamping of the two cable lines 23;

[0040] When the device needs to be inspected and repaired, since two connecting platforms 13 are fixed on one side of the top of the lower protective cover 1, a rotating shaft 14 is rotatably connected inside the two connecting platforms 13, the rotating shaft 14 is fixed to the upper protective cover 3, a first fixing block 15 is fixed on one side of the lower protective cover 1, a second fixing block 16 is fixed on one side of the upper protective cover 3, the first fixing block 15 and the second fixing block 16 are in corresponding positions, and a butterfly screw 17 is threadedly connected inside the first fixing block 15 and the second fixing block 16; then rotate the butterfly screw 17 so that the threaded end of the butterfly screw 17 exits from the inside of the first fixing block 15, pull the butterfly screw 17, the butterfly screw 17 drives the second fixing block 16, and the second fixing block 16 drives the upper protective cover 3 to rotate around the rotating shaft 14, and the lower protective cover 1 and the upper protective cover 3 can be opened to facilitate inspection and repair. When the inspection and repair are completed, perform the reverse operation, and the lower protective cover 1 and the upper protective cover 3 can be closed to protect the internal parts of the device, which can improve the service life of the device and has good practicability;

[0041] When the device needs to be pressed, since pressing cylinders 18 are fixed at both ends of the lower protective cover 1, a screw pressing nut 19 is threadedly connected to the outside of one end of the pressing cylinder 18, and a plurality of opening grooves 20 are formed inside one end of the pressing cylinder 18; a sealing ring 21 is fixed inside the pressing cylinder 18, a cable 23 is in fitting contact inside the sealing ring 21, and the threaded end of the pressing cylinder 18 is in a conical shape; lugs 22 are fixed on both outer sides of the screw pressing nut 19; then insert the cable 23 into the pressing cylinders 18 at both ends, and the mutually approaching ends of the two cables 23 are butted inside the lower protective cover 1 and the upper protective cover 3. Through the setting of the lugs 22, it is convenient and labor-saving to rotate the screw pressing nut 19 on the surface of the pressing cylinder 18. Rotate the lugs 22, the lugs 22 drive the screw pressing nut 19 to rotate, the screw pressing nut 19 squeezes one end of the pressing cylinder 18, and the squeezing effect is better through the setting of the opening grooves 20. Through the setting of the sealing ring 21, sealing can be achieved when the cable 23 is pressed, so that there will be no gaps, and the functions of insulation and waterproofing can be realized;

[0042] The above-disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An insulating protective cover for protective wiring of a thermal power unit, characterized in that: The invention comprises a lower protective sleeve (1), a pressing block (2) and an upper protective sleeve (3), wherein two pressing blocks (2) are installed inside the lower protective sleeve (1), the top side of the lower protective sleeve (1) is rotatably connected to the upper protective sleeve (3), a clamping mechanism is installed between the lower protective sleeve (1) and the pressing block (2), and a protective maintenance mechanism is installed between the lower protective sleeve (1) and the upper protective sleeve (3); The clamping mechanism comprises a clamping base (4), a guide rod (5), a mounting strip (6), a threaded screw (7), a knob (8), a bearing (9), a guide plate (10), a matching block (11) and a limit plate (12); two clamping bases (4) are fixed on the inner side of the lower protective cover (1); guide rods (5) are fixed at both ends of the top of the clamping base (4); a mounting strip (6) is fixed on the top of the two guide rods (5); the inner thread of the mounting strip (6) is connected to the threaded screw (7); the threaded A knob (8) is fixed on the top of the screw rod (7), a bearing (9) is fixed on the bottom of the threaded screw rod (7), the bearing (9) is fixed to the clamping block (2), guide plates (10) are fixed on both ends of the clamping block (2), the guide plates (10) are slidably connected to the guide rod (5), two matching blocks (11) are slidably connected on the inner side of the clamping block (2), a limiting plate (12) is fixed on the bottom of the matching block (11), and the matching block (11) and the limiting plate (12) are both slidably connected to the clamping base (4).

2. The thermal power unit protective wiring insulation protective cover according to claim 1, characterized in that: The protective maintenance mechanism comprises a connecting platform (13), a rotating shaft (14), a first fixing block (15), a second fixing block (16) and a butterfly screw (17); two connecting platforms (13) are fixed on one side of the top of the lower protective cover (1); the two connecting platforms (13) are internally rotatably connected to a rotating shaft (14); the rotating shaft (14) and the upper protective cover (3) are fixed; a first fixing block (15) is fixed on one side of the lower protective cover (1); a second fixing block (16) is fixed on one side of the upper protective cover (3); the first fixing block (15) and the second fixing block (16) are positioned correspondingly; the first fixing block (15) and the second fixing block (16) are internally threadedly connected to a butterfly screw (17).

3. The thermal power unit protective wiring insulation protective cover according to claim 1, characterized in that: Both ends of the lower protective sleeve (1) are fixed with a clamping mechanism, and the clamping mechanism comprises a clamping cylinder (18), a screw cap (19) and an open groove (20). Both ends of the lower protective sleeve (1) are fixed with a clamping cylinder (18), one end of the clamping cylinder (18) is externally threadedly connected to the screw cap (19), and one end of the clamping cylinder (18) is internally provided with a plurality of open grooves (20).

4. The thermal power unit protective wiring insulation protective cover according to claim 3, characterized in that: A sealing ring (21) is fixed inside the compression cylinder (18), and a cable (23) is in close contact with the inside of the sealing ring (21). One end of the thread of the compression cylinder (18) is in a conical shape.

5. The thermal power unit protective wiring insulation protective cover according to claim 3, characterized in that: Lugs (22) are fixed on both sides of the outside of the screw cap (19).

6. The thermal power unit protective wiring insulation protective cover according to claim 1, characterized in that: A sealing gasket (24) is provided between the lower protective cover (1) and the upper protective cover (3).

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