Manual closing mechanism of mining flame-proof and intrinsically safe combined high-voltage vacuum power distribution device

Abstract

The utility model relates to a mining flame-proof and intrinsically safe type combined high-voltage vacuum power distribution device manual switching-on mechanism, which comprises a pull rope for driving a circuit breaker swing arm to rotate and switch on and a button for pulling the pull rope through a transmission mechanism, the transmission mechanism comprises a crank arm hinged on a support through a hinge shaft, one end of the crank arm is connected with the pull rope, and the other end of the crank arm is connected with the button. And the other end of the crank arm is connected with the button through a transmission structure. After the button is pressed, the output shaft of the button moves towards the direction of the transmission plate and drives the transmission plate to move along the pressing direction of the button, the movement of the transmission plate drives the crank arm to rotate, the crank arm rotates to pull the pull rope, and the pull rope drives the swing arm of the circuit breaker to rotate, so that closing is realized, and safe and rapid closing of the circuit breaker is realized. Therefore, timely and safe power transmission of underground power supply equipment is ensured; after closing is finished, resetting of the button is facilitated through arrangement of the first spring, meanwhile, the spring on the swing arm of the circuit breaker drives the swing arm to reset, and therefore automatic resetting of the whole mechanism is achieved.

Description

Technical Field

[0001] The utility model relates to the field of power distribution, in particular to the technical field of power distribution device closing, and specifically refers to a manual closing mechanism for a mine-used explosion-proof and intrinsically safe combined high-voltage vacuum power distribution device. Background Art

[0002] In the environment of explosive mixed gases such as methane and coal dust in coal mines and their surrounding media, the safety of the coal mine power supply system becomes more and more important.

[0003] The mine flameproof and intrinsically safe combined high-voltage vacuum distribution device plays an increasingly important role in the coal mine power supply system. The use environment determines that this type of equipment has a safe and reliable mechanism to ensure the safe operation of the equipment. In order to ensure the emergency power supply of the equipment and the normal operation of the equipment, it is necessary to increase the rapid closing of the circuit breaker. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a manual closing mechanism for a mine-used explosion-proof and intrinsically safe combined high-voltage vacuum power distribution device, which utilizes a pull rope and a button to achieve safe and rapid closing of the circuit breaker, thereby ensuring timely and safe power supply to underground power supply equipment.

[0005] The utility model is realized by the following technical scheme: a manual closing mechanism of a mine explosion-proof and intrinsically safe combined high-voltage vacuum distribution device comprises a pull rope for driving a circuit breaker swing arm to rotate and close the circuit, and a button for pulling the pull rope through a transmission mechanism, wherein the transmission mechanism comprises a crank arm hinged on a bracket through a hinge shaft, one end of the crank arm is connected to the pull rope, and the other end of the crank arm is connected to the button through a transmission structure.

[0006] When the utility model is in use, the button is pressed, and the button drives the crank arm to rotate through the transmission structure. The rotation of the crank arm pulls the pull rope, and the pull rope drives the swing arm of the circuit breaker to rotate, thereby closing the circuit breaker, thereby realizing safe and rapid closing of the circuit breaker, thereby ensuring timely and safe power supply of the underground power supply equipment.

[0007] The transmission structure comprises a transmission plate located on the moving path of the button output shaft, and the top end of the transmission plate is detachably connected to the crank arm.

[0008] When the preferred solution is in use, after pressing the button, the output shaft of the button moves toward the transmission plate and drives the transmission to move in the direction of the button pressing. Since the crank arm shaft is connected to the bracket, the movement of the transmission plate drives the crank arm to rotate.

[0009] Preferably, the button includes a support arranged on the bracket, a keycap laterally slidably connected to the support, and the output shaft connected to the keycap, one end of the keycap away from the output shaft extends to the outside of the support, one end of the output shaft away from the keycap extends to the outside of the support in a direction away from the keycap and presses against the transmission plate, and a first spring is also provided in the support to drive the keycap to extend in a direction away from the transmission plate.

[0010] When the preferred solution is in use, after the closing operation is completed, the first spring is provided to facilitate the reset of the button, and at the same time, the spring on the swing arm of the circuit breaker also drives the swing arm to reset, thereby achieving automatic reset of the entire mechanism.

[0011] Preferably, a protective sleeve is sleeved on the outside of the pull rope, the protective sleeve is connected to the bracket, and the pull rope is slidably connected inside the protective sleeve.

[0012] This preferred solution protects the pull rope by providing a protective cover.

[0013] Preferably, the button is located on a side of the circuit breaker, and the pull rope extends vertically upward and then extends horizontally toward the circuit breaker.

[0014] This preferred solution facilitates lowering the height of the button by setting the button position, thereby making it easier for staff to access it.

[0015] Preferably, the connection point between the pull rope and the crank arm and the connection point between the transmission plate and the crank arm are located on both sides of the hinge shaft. In this preferred solution, by arranging the two connection points on both sides of the hinge shaft, when one connection point drives the crank arm to rotate, the rotation amplitude of the other connection point will be increased compared with the arrangement where the two connection points are located on the same side of the hinge shaft, thereby achieving rapid closing.

[0016] Preferably, a ring is fixedly connected to the crank arm, and a pull ring with a diameter larger than the ring is provided below the ring, and the pull rope passes through the ring and is then wrapped around the pull ring.

[0017] This preferred solution facilitates the connection of the draw rope to the swing arm through the provision of the sleeve ring and the pull ring.

[0018] The beneficial effects of the utility model are as follows: after pressing the button, the output shaft of the button moves in the direction of the transmission plate, and drives the transmission to move in the direction in which the button is pressed; since the crank arm shaft is connected to the bracket, the movement of the transmission plate drives the crank arm to rotate, and the rotation of the crank arm pulls the pull rope, and the pull rope drives the swing arm of the circuit breaker to rotate, thereby realizing closing, thereby realizing safe and rapid closing of the circuit breaker, thereby ensuring timely and safe power supply to the underground power supply equipment; after the closing is completed, the first spring is set to facilitate the resetting of the button, and at the same time, the spring on the swing arm of the circuit breaker also drives the swing arm to reset, thereby realizing automatic resetting of the entire mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 for Figure 1 An enlarged schematic diagram of the middle arm;

[0021] Figure 3 is a schematic diagram of a crank arm;

[0022] As shown in the figure:

[0023] 1. button, 2. first spring, 3. transmission plate, 4. crank arm, 5. bracket, 6. protective cover, 7. circuit breaker, 8. pull rope, 9. pull ring, 10. main plate, 11. horizontal section, 12. vertical section, 13. cross plate, 14. hinge shaft, 15. collar. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0025] See attached Figure 1-3 The utility model provides a manual closing mechanism for a combined explosion-proof and intrinsically safe high-voltage vacuum power distribution device for mining, including a pull rope 8 for driving a swing arm of a circuit breaker 7 to rotate and close the circuit, the swing arm being located above the circuit breaker 7, the other end of the pull rope 8 being connected to a crank arm 4 located on the side of the circuit breaker 7, the crank arm 4 being located below the swing arm, so that the pull rope 8 extends horizontally and then extends vertically downward, that is, the pull rope 8 is bent 90°, a protective sleeve 6 is connected to the outer surface of the pull rope 8, the protective sleeve 6 is connected to the bracket 5, the pull rope 8 is slidably connected to the protective sleeve 6, and the protective sleeve 6 is also bent 90°.

[0026] The crank arm 4 includes a main plate 10 hinged on the bracket 5 through a hinge shaft 14, a horizontal section 11 fixed to the main plate 10 and extending horizontally, and a vertical section 12 fixed to the main plate 10 and extending vertically, the vertical section 12 is located below the horizontal section 11, and the horizontal section 11 is located between the vertical section 12 and the circuit breaker 7. The cross-section of the main plate 10 is square, and a ring 15 is fixed to the side of the horizontal section 11. A pull ring 9 with a diameter larger than the ring 15 is provided below the ring 15, and the pull rope 8 passes through the ring 15 and is wrapped around the pull ring 9.

[0027] A transmission plate 3 is also provided directly below the vertical section 12, and a horizontal plate 13 is fixedly connected to the side of the vertical section 12. The transmission plate 3 is U-shaped, and the top surface of the transmission plate 3 is detachably connected to the horizontal plate 13 through a pin shaft. The transmission plate and the crank arm are relatively fixed. A button 1 is also provided between the transmission plate 3 and the circuit breaker 7. The button 1 includes a support arranged on the bracket 5, a keycap laterally slidably connected in the support, and an output shaft connected to the keycap, one end of the keycap away from the output shaft extends to the outside of the support, and one end of the output shaft away from the keycap extends in a direction away from the keycap to the outside of the support and pushes onto the transmission plate 3. A first spring 2 is also provided in the support to drive the keycap to extend in a direction away from the transmission plate 3.

[0028] The transmission plate 3 becomes a transmission structure for the button 1 to drive the crank arm 4 to rotate. The connection point between the pull rope 8 and the crank arm 4 and the connection point between the transmission plate 3 and the crank arm 4 are located on both sides of the hinge shaft 14.

[0029] When the utility model is in use, when the equipment needs to be repaired, when the mine-used flameproof and intrinsically safe combined high-voltage vacuum distribution device needs emergency power supply due to maintenance or other faults, the button 1 is pressed, and the transmission shaft of the button 1 moves toward the transmission plate 3 under the thrust of the finger, driving the transmission plate 3 to move in the direction away from the circuit breaker 7. During the movement, the transmission plate 3 drives the swing arm to rotate around the hinge shaft 14, that is, the swing arm rotates clockwise, and moves downward from the driving horizontal section 11, thereby pulling the pull rope 8 to move downward, and the pull rope 8 pulls the swing arm of the circuit breaker 7 to swing clockwise, thereby realizing the closing of the circuit breaker 7.

[0030] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A manual closing mechanism for a combined high-voltage vacuum power distribution device for explosion-proof and intrinsically safe mining use, characterized by: It comprises a pull rope (8) for driving a swing arm of a circuit breaker (7) to rotate and close the circuit breaker, and a button (1) for pulling the pull rope (8) through a transmission mechanism, wherein the transmission mechanism comprises a crank arm (4) hinged on a bracket (5) through a hinge shaft (14), one end of the crank arm (4) is connected to the pull rope (8), and the other end of the crank arm (4) is connected to the button (1) through a transmission structure.

2. The manual closing mechanism of the explosion-proof and intrinsically safe combined high-voltage vacuum power distribution device for mining according to claim 1 is characterized in that: The transmission structure comprises a transmission plate (3) located on the moving path of the output shaft of the button (1), and the top end of the transmission plate (3) is detachably connected to the crank arm (4).

3. The manual closing mechanism of the explosion-proof and intrinsically safe combined high-voltage vacuum power distribution device for mining according to claim 2 is characterized in that: The button (1) comprises a support arranged on a bracket (5), a keycap slidably connected to the support laterally, and the output shaft connected to the keycap, wherein one end of the keycap away from the output shaft extends to the outside of the support, and one end of the output shaft away from the keycap extends to the outside of the support in a direction away from the keycap and is pressed against the transmission plate (3). A first spring (2) is also provided in the support for driving the keycap to extend in a direction away from the transmission plate (3).

4. The manual closing mechanism of the explosion-proof and intrinsically safe combined high-voltage vacuum power distribution device for mining according to claim 1 is characterized in that: The pull rope (8) is also sleeved with a protective sleeve (6), the protective sleeve (6) is connected to the bracket (5), and the pull rope (8) is slidably connected inside the protective sleeve (6).

5. The manual closing mechanism of the explosion-proof and intrinsically safe combined high-voltage vacuum power distribution device for mining according to claim 1 is characterized in that: The button (1) is located on a side of the circuit breaker (7), and the pull rope (8) extends vertically upward and then extends horizontally toward the circuit breaker (7).

6. The manual closing mechanism of the explosion-proof and intrinsically safe combined high-voltage vacuum power distribution device for mining according to claim 1 is characterized in that: The connection point between the pull rope (8) and the crank arm (4) and the connection point between the transmission plate (3) and the crank arm (4) are located on both sides of the hinge shaft (14).

7. The manual closing mechanism of the explosion-proof and intrinsically safe combined high-voltage vacuum power distribution device for mining according to claim 1 is characterized by: A collar (15) is fixedly connected to the crank arm (4), a pull ring (9) having a diameter larger than the collar (15) is provided below the collar (15), and the pull rope (8) passes through the collar (15) and is then wound around the pull ring (9).

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