Bus duct variable capacitance joint with protection structure

Abstract

The utility model discloses a bus duct variable-capacity section with a protection structure, which belongs to the technical field of bus duct variable-capacity sections and comprises a bus duct variable-capacity section body, the surface of the bus duct variable-capacity section body is fixedly connected with a first fixing block, and the surface of the first fixing block is fixedly connected with a first limiting rod. The surface of the first limiting rod is movably connected with a protection plate. The surface of the protection plate is fixedly connected with a second fixing block, and the interior of the second fixing block is in threaded connection with a two-way threaded rod. The inner wall of the bus duct variable capacitance joint body is fixedly connected with a motor, and the output end of the motor is fixedly connected with a first rotating shaft. According to the bus duct variable-capacity joint with the protection structure, the second bevel gear is connected with the fan, so that the heat dissipation efficiency of the device is improved, the fan can quickly break the retention state of hot air, heat is dissipated in time, the problems of electrical performance reduction and part aging caused by overheating are reduced, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to bus duct variable capacity section technical field, concretely is a bus duct variable capacity section with protection structure. BACKGROUND

[0002] Bus duct has become an important branch in power transmission and distribution industry because of its large carrying capacity, strong applicability and several generations of development, and is widely used in various industries. As we all know, bus duct is a power distribution device for centralized and efficient current transmission, which is mainly used for power distribution of wire circuit in high-rise buildings and large workshops instead of cable power transmission system in earlier times. It is more and more widely used in various places because of its small size, large capacity, short design and construction period, easy installation and removal, non-combustibility, safety and reliability, long service life and many other advantages. In order to make the bus duct more economical and reasonable, most users use bus duct variable capacity section in long line power point line to save cost. At present, bus duct variable capacity section widely used in the market adopts direct variable diameter without any protection measures. Thus, overload operation is easy to occur at the variable capacity position, which causes temperature rise of bus duct, insulation aging acceleration and other problems, and even causes electrical disaster, which brings hidden danger to the reliability and safety of bus duct.

[0003] In order to overcome the above defects, the existing technology 1 (Chinese patent with application number CN201820883786.X and application date of 2018-06-07) bus duct protection variable capacity section sets variable capacity front bus duct, variable capacity rear bus duct and circuit breaker connecting variable capacity front bus duct and variable capacity rear bus duct. In order to ensure that the variable capacity rear bus duct does not overload, the rated current of the variable capacity rear bus duct is set as the setting value of the circuit breaker in the variable capacity section, so as to achieve the ability to protect the overload of the rear bus. When the variable capacity rear bus duct exceeds the setting value of the circuit breaker, the circuit breaker trips to disconnect the variable capacity rear bus duct, so as to protect the safe operation of the line. When using, only the circuit breaker needs to be closed to continue to use.

[0004] When the bus duct variable capacity section works, the connection part will be damaged due to high temperature, which will cause electrical disaster and hidden danger to the reliability and safety of the bus duct. The above device cannot effectively cool the bus duct variable capacity section during use, which will accelerate the aging of the insulation material at high temperature, reduce the insulation performance, increase the risk of electric leakage, consume more electric energy and shorten the service life of the device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a bus duct variable capacity section with a protection structure to solve the problem that the bus duct variable capacity section cannot be effectively cooled, which will accelerate the aging of the insulation material at high temperature, reduce the insulation performance, increase the risk of electric leakage, consume more electric energy and shorten the service life of the device.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A bus duct variable capacity joint with protection structure, including bus duct variable capacity joint body, bus duct variable capacity joint body surface fixedly connected with one fixed block, and one fixed block surface fixedly connected with one limit rod, and one limit rod surface movably connected with protection plate, protection plate surface fixedly connected with two fixed blocks, and two fixed blocks inside screw thread connection has two -way threaded rod, bus duct variable capacity joint body inner wall fixedly connected with motor, and motor output fixedly connected with one pivot, and one pivot surface with two -way threaded rod surface all fixedly connected with one bevel gear, bus duct variable capacity joint body inside rotationally arranged with second pivot, and second pivot end fixedly connected with fan.

[0007] Preferably, the surface of the first shaft and the surface of the second shaft are both fixedly connected with the second bevel gear.

[0008] Preferably, the surface of the first shaft and the surface of the second shaft are both fixedly connected with the second bevel gear.

[0009] Preferably, the bus duct variable capacity joint body surface is fixedly connected with the push block, and the push block is distributed at equal intervals on the bus duct variable capacity joint body surface.

[0010] Preferably, the protection plate inside fixedly connected with four fixed blocks, and four fixed blocks surface fixedly connected with two limit rods.

[0011] Preferably, the surface of the second limit rod is slidably connected with the brush plate, and the lower surface of the brush plate is fixedly connected with the push block, and the surface of the brush plate is fixedly connected with the first spring.

[0012] Preferably, the other end of the first spring is fixedly connected with the third fixed block, and the third fixed block is fixedly connected to the inner wall of the protection plate.

[0013] Preferably, the first limit rod is symmetrically distributed about the center of the bus duct variable capacity joint.

[0014] Compared with the prior art, the utility model has the advantages that: the bus duct variable capacity joint with protection structure adopts a novel structure design, and the specific content is as follows:

[0015] (1) the bus duct variable capacity joint with protection structure is connected with the second bevel gear and the fan, which improves the heat dissipation efficiency of the device, and the fan can quickly break the state of hot air stagnation, so that the heat is dissipated in time, reduces the problem of electrical performance decline and component aging caused by overheating, and prolongs the service life of the device.

[0016] (2) The bus duct variable capacity joint with the protection structure, through the connection of the bidirectional threaded rod and the protection plate, the protection plate is accurately covered to the connecting position of the bus duct variable capacity joint body, reliable protection is provided for the bus duct variable capacity joint body, the protection plate realizes fast and stable protection action on the bus duct variable capacity joint body, and external collision is effectively resisted.

[0017] Further, the protection plate has small friction loss in the accurate and stable movement process, and the mechanical performance of the bidirectional threaded rod can be maintained for a long time, thereby reducing the trouble of frequent replacement of parts.

[0018] (3) The bus duct variable capacity joint with the protection structure, through the connection of the first spring and the second limiting rod, the brush plate reciprocally slides in the inner wall of the protection plate, dust on the surface of the bus duct variable capacity joint body is effectively reduced, the clean environment of equipment operation is further ensured, and the overall efficiency of the protection system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a schematic view of the connection structure of the first fixed block and the first limiting rod of the utility model;

[0020] Fig. 2 It is a schematic view of the connection structure of the bus duct variable capacity joint body and the first fixed block of the utility model;

[0021] Fig. 3 It is a schematic view of the connection structure of the bus duct variable capacity joint body and the second rotating shaft of the utility model;

[0022] Fig. 4 It is a schematic view of the connection structure of the first bevel gear and the bidirectional threaded rod of the utility model;

[0023] Fig. 5 It is a schematic view of the connection structure of the first rotating shaft and the first bevel gear of the utility model;

[0024] Fig. 6 It is a schematic view of the connection structure of the first spring and the first spring of the utility model.

[0025] In the drawing: 1, bus duct variable capacity joint body; 2, first fixed block; 3, first limiting rod; 4, motor; 5, first rotating shaft; 6, first bevel gear; 7, bidirectional threaded rod; 8, second fixed block; 9, protection plate; 10, second bevel gear; 11, second rotating shaft; 12, fan; 13, lower push block; 14, upper push block; 15, brush plate; 16, first spring; 17, third fixed block; 18, second limiting rod; 19, fourth fixed block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] In the embodiment, the connection of the bus duct variable capacity joint body 1, the second rotating shaft 11 and the fan 12 is arranged, so that the temperature of the surface of the bus duct variable capacity joint body 1 is reduced, as shown in the figure. Figs. 1-2

[0028] The utility model relates to a bus duct variable capacity joint body 1, one fixed block 2 is fixedly connected to the surface of bus duct variable capacity joint body 1, one limit rod 3 is fixedly connected to the surface of one fixed block 2, and the surface of one limit rod 3 is movably connected with a protection plate 9, the surface of protection plate 9 is fixedly connected with a second fixed block 8, the second fixed block 8 is screw connected with a two -way threaded rod 7 in the inside, the inside wall of bus duct variable capacity joint body 1 is fixedly connected with a motor 4, and the output end of motor 4 is fixedly connected with a first rotating shaft 5, and the surface of first rotating shaft 5 and the surface of two -way threaded rod 7 are both fixedly connected with a bevel gear 6, and the second rotating shaft 11 is rotatably arranged in the inside of bus duct variable capacity joint body 1, and the tail end of second rotating shaft 11 is fixedly connected with a fan 12.

[0029] When the bus duct variable capacity joint body 1 needs to be cooled, the motor 4 starts to work, and the first rotating shaft 5 at the output end rotates, since the surface of the first rotating shaft 5 and the surface of the two -way threaded rod 7 are both fixedly connected with the bevel gear 6, the two bevel gears 6 are meshed with each other, so that the rotating power of the first rotating shaft 5 is transmitted to the two -way threaded rod 7, and the two -way threaded rod 7 is driven to rotate synchronously, and the fan 12 fixedly connected to the tail end of the second rotating shaft 11 is rotated, when the fan 12 rotates, the air flow in the inside of the bus duct variable capacity joint body 1 is accelerated, the hot air is quickly taken out, and the cold air is continuously supplemented, so that the temperature of the surface of the bus duct variable capacity joint body 1 is reduced, and the rotating speed of the fan 12 can be controlled by the motor 4, when the temperature monitoring data of the bus duct variable capacity joint body 1 shows that the temperature is high, the rotating speed of the motor 4 can be increased, the fan 12 can be forced to exhaust air, when the temperature is slightly reduced, the motor 4 can be appropriately slowed down, the cooling intensity can be adjusted as required, the appropriate temperature range can be maintained, and the stable operation of the equipment can be ensured.

[0030] In the embodiment, the connection of the bus duct variable capacity joint body 1, the second rotating shaft 11 and the fan 12 is arranged, so that the temperature of the surface of the bus duct variable capacity joint body 1 is reduced, as shown in the figure. Figs. 3-4

[0031] ​​The surface of the first rotating shaft 5 is fixedly connected with the second bevel gear 10, the surface of the bus duct variable capacity section body 1 is fixedly connected with the push block 13, and the push block 13 is distributed at equal intervals on the surface of the bus duct variable capacity section body 1, the fourth fixed block 19 is fixedly connected in the protection plate 9, and the second limiting rod 18 is fixedly connected to the surface of the fourth fixed block 19.

[0032] When the motor 4 works, the first rotating shaft 5 connected with the output end rotates, the first bevel gear 6 is connected with the bidirectional threaded rod 7 and the first rotating shaft 5, and the bidirectional threaded rod 7 is threadedly connected in the second fixed block 8, so that when the motor 4 works, the protection plate 9 is driven to protect the bus duct variable capacity section body 1, and under the action of the first limiting rod 3, the protection plate 9 will displace along the predetermined track and accurately cover the corresponding part of the bus duct variable capacity section body 1 to provide reliable protection, so that the protection plate 9 can quickly and stably protect the bus duct variable capacity section body 1, and effectively resist the collision from the outside.

[0033] In example three, different from example two, the connection of the brush plate 15, the first spring 16 and the second limiting rod 18 is set, so that the brush plate 15 reciprocally slides in the inner wall of the protection plate 9, as shown in Figs. 5-6

[0034] The second limiting rod 18 is slidably connected with the brush plate 15, the upper surface of the brush plate 15 is fixedly connected with the push block 14, the surface of the brush plate 15 is fixedly connected with the first spring 16, the other end of the first spring 16 is fixedly connected with the third fixed block 17, the third fixed block 17 is fixedly connected to the inner wall of the protection plate 9, and the first limiting rod 3 is symmetrically distributed about the center of the bus duct variable capacity section body 1.

[0035] When the protection plate 9 protects the bus duct variable capacity section body 1, with the movement of the protection plate 9, when the push block 14 on the lower surface of the brush plate 15 contacts the push block 13, the push block 14 drives the brush plate 15 to slide on the surface of the second limiting rod 18, and the first spring 16 shrinks to the inside of the third fixed block 17, when the push block 14 is away from the push block 13, due to the action of the first spring 16, the brush plate 15 returns to the initial position, and the push block 13 is distributed at equal intervals on the surface of the bus duct variable capacity section body 1, so that the reciprocating sliding of the brush plate 15 is realized, the dust on the surface of the bus duct variable capacity section body 1 is effectively reduced, the cleanliness of the equipment operating environment is further ensured, and the overall efficiency of the protection system is improved.

[0036] The above is the working process of the entire device, and the contents not described in detail in the specification all belong to the existing technology known to those skilled in the art.

[0037] ​Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bus duct variable capacity joint with a protection structure, comprising a bus duct variable capacity joint body (1), the bus duct variable capacity joint body (1) is fixedly connected with a first fixed block (2) on the surface, and the first fixed block (2) is fixedly connected with a first limiting rod (3) on the surface, and the first limiting rod (3) is movably connected with a protection plate (9) on the surface; Characterized in that: The protection plate (9) is fixedly connected with a second fixed block (8) on the surface, and the second fixed block (8) is threadedly connected with a bidirectional threaded rod (7) inside; The bus duct variable capacity joint body (1) is fixedly connected with a motor (4) on the inner wall, and the motor (4) is fixedly connected with a first rotating shaft (5) on the output end, and the first rotating shaft (5) is fixedly connected with a first bevel gear (6) on the surface and the bidirectional threaded rod (7) is fixedly connected with a second bevel gear (10) on the surface; The bus duct variable capacity joint body (1) is rotatably provided with a second rotating shaft (11) inside, and the second rotating shaft (11) is fixedly connected with a fan (12) at the tail end.

2. The bus duct variable capacity joint with a protection structure according to claim 1, characterized in that: The surface of the first rotating shaft (5) and the surface of the second rotating shaft (11) are both fixedly connected with the second bevel gear (10).

3. The bus duct variable capacity joint with a protection structure according to claim 1, characterized in that: The bus duct variable capacity joint body (1) is fixedly connected with a push-down block (13) on the surface, and the push-down block (13) is distributed at equal intervals on the surface of the bus duct variable capacity joint body (1).

4. The bus duct surge arrester with a protective structure according to claim 1, characterized in that: The protection plate (9) is fixedly connected with a fourth fixed block (19) inside, and the fourth fixed block (19) is fixedly connected with a second limiting rod (18) on the surface.

5. The bus duct surge arrester with a protective structure according to claim 4, characterized in that: The second limiting rod (18) is slidably connected with a brush plate (15) on the surface, and the brush plate (15) is fixedly connected with a push-up block (14) on the lower surface, and the brush plate (15) is fixedly connected with a first spring (16) on the surface.

6. The bus duct surge arrester with a protective structure according to claim 5, characterized in that: The other end of the first spring (16) is fixedly connected with a third fixed block (17), and the third fixed block (17) is fixedly connected to the inner wall of the protection plate (9).

7. The bus duct surge arrester with a protective structure according to claim 1, characterized in that: The first limiting rod (3) is symmetrically distributed about the center of the bus duct variable capacity joint body (1).

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