Circuit breaker opening and closing operation mechanism for high-voltage switch cabinet

Abstract

The utility model belongs to the technical field of switch cabinets, and particularly relates to a circuit breaker opening and closing operation mechanism for a high-voltage switch cabinet, which comprises a circuit breaker, an air switch and a switch cabinet, the circuit breaker and the air switch are both mounted on the switch cabinet, and one side of the circuit breaker and one side of the air switch are provided with an operation mechanism. According to the utility model, the connecting plate is pushed towards one side through the push plate, so that the connecting rod I pushes the switch button through the control column, the air switch is closed, and after the air switch is closed, the inclined plane downwards extrudes the control button, so that the control button is extruded by the second cross section, and the closing operation of the circuit breaker is completed. And then, in order to avoid long-time connection of a closing loop, a push plate is pulled outwards to complete disconnection of the air switch, at the moment, a second connecting rod pulls a control panel, so that a control button is located below a first cross section again, and the device improves the use convenience through the operation steps of first pushing and then pulling.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a circuit breaker opening and closing operating mechanism for a high-voltage switch cabinet. Background Art

[0002] The power supply mode of the 10KV high-voltage distribution room of the power branch company is mostly a split operation mode of two incoming line cabinets and one mother-coupled cabinet. During the design and installation, in order to control the occurrence of safety accidents and prevent the switch from opening and closing malfunctions, the designers designed the two incoming lines and the contact switches to be interlocked with each other, that is, two of the three switch cabinets are selected to be closed, and the other is selected as a standby. This controls the probability of safety accidents to a certain extent, but there are two defects: 1. Restricting safe production: When one incoming line and the contact switch are in the closed position, a single circuit is powered, affecting the safety power supply coefficient; 2. Complicating safe operation: When the operating personnel are in the process of switching operations, one switch often requires two to three people to complete it together, one person short-circuit the closing circuit, one person short-circuit the electromagnetic locking circuit, and one person operates the high-voltage switch cabinet. This is incompatible with the modern enterprise management concept. Therefore, it is necessary to develop a new type of opening and closing interlocking mechanism that can realize the interlocking function of the switch cabinet, prevent electrical accidents caused by the wrong opening and closing of the circuit breaker, and enable the operation of the switch cabinet without the participation of multiple people;

[0003] The modification method is: use wires to extend the 34# and 39# terminals in the circuit breaker closing control circuit (taking the dry coke quenching high-voltage distribution room as an example) to the upper and lower terminals (normally open contacts) of the small air switch, fix them in the switch cabinet and mark them; before closing the switch, first close the air switch (normally open contacts become normally closed contacts) and then use the electronic key to lock the locking electromagnetic lock, and then confirm the switch before closing the switch; after closing the switch, disconnect the air switch (normally closed contacts become normally open contacts) to prevent the closing circuit from being connected for a long time, which will not play the role of interlocking the switch cabinet; but the operation steps of the above modification method are cumbersome. When you are not familiar with the circuit or equipment, it may cause dangerous situations such as electric shock or improper operation. It is difficult to improve the convenience of use and operation through the simple steps of pushing first and then pulling.

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The utility model aims to provide a circuit breaker opening and closing operating mechanism for a high-voltage switch cabinet, which solves the problem in the prior art that it is difficult to improve the convenience of use and operation through the simple steps of first pushing and then pulling.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A circuit breaker opening and closing operating mechanism for a high-voltage switch cabinet comprises a circuit breaker, an air switch and a switch cabinet, wherein the circuit breaker and the air switch are both mounted on the switch cabinet, and an operating mechanism is arranged on one side of the circuit breaker and the air switch;

[0008] The operating mechanism includes two mounting plates installed inside the switch cabinet, an L-shaped rod is fixedly arranged above the mounting plate, a limit plate is fixedly installed on one side of the L-shaped rod, a slide groove is opened on the outer wall of the opposite side of the two limit plates, a limit column is fixedly arranged in the slide groove, a connecting plate is slidably arranged between the two limit columns, a control component 2 is arranged above the control button on the circuit breaker, and a control component 1 is arranged above the switch button on the air switch.

[0009] Furthermore, buffer springs are sleeved on the outer walls of the limiting columns on both sides of the connecting plate, and a push plate is fixedly provided on a side wall of the connecting plate away from the circuit breaker.

[0010] Furthermore, the control member 1 includes a connecting rod 1 fixedly connected to one side of the connecting plate, and two control columns are fixedly provided on the outer wall of the other side of the connecting rod 1 away from the connecting plate, and the two control columns are respectively located on both sides of the switch button.

[0011] Furthermore, the control component 2 includes a connecting rod 2 fixedly connected to the other side of the connecting plate, a connecting rod 3 is fixedly installed on the top wall of the connecting rod 2, and a control plate is fixedly installed on the top wall of the connecting rod 3.

[0012] Furthermore, a first section is transversely arranged on the bottom wall of the control panel, inclined surfaces are symmetrically arranged on both sides of the first section, and a second section is transversely arranged on a side of the inclined surface away from the first section.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, the connecting plate is pushed to one side by the push plate, so that the connecting plate moves along the limit column, and the connecting plate pushes the connecting rod 1 and the connecting rod 2 outward synchronously, and the connecting rod 1 pushes the switch button through the control column to close the air switch, and the first section below the limit plate slides and cooperates with the top of the control button first, and after the air switch is closed, the inclined surface squeezes the control button downward so that the control button is squeezed by the second section to complete the closing operation of the circuit breaker, and then, in order to avoid the closing circuit being connected for a long time, the push plate is pulled outward, so that the connecting plate synchronously pulls the connecting rod 1 and the connecting rod 2 outward, and first completes the disconnection of the air switch through the control column on the connecting rod 1, and at this time, the connecting rod 2 pulls the control plate so that the control button is re-located below the first section. The device improves the convenience of use through the operation steps of pushing first and then pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the operating mechanism in the utility model;

[0018] Figure 3 It is a partially enlarged stereoscopic schematic diagram of the operating mechanism;

[0019] Figure 4 It is a three-dimensional diagram of the control component 2 in the utility model;

[0020] Figure 5 It is a three-dimensional diagram of the control component 1 in the utility model;

[0021] Figure 6 It is a schematic diagram of the relationship between the first section, the inclined surface and the second section on the control panel.

[0022] Figure numerals: 1. Circuit breaker; 2. Air switch; 3. Control button; 4. Switch button; 5. Operating mechanism; 51. Mounting plate; 52. L-shaped rod; 53. Limit plate; 54. Slide groove; 55. Control part 1; 56. Control part 2; 57. Connecting plate; 58. Limit column; 59. Buffer spring; 551. Connecting rod 1; 552. Control column; 561. Connecting rod 2; 562. Connecting rod 3; 563. Control panel; 6. Switch cabinet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] like Figure 1-6 As shown, a circuit breaker opening and closing operating mechanism for a high-voltage switch cabinet proposed in this embodiment includes a circuit breaker 1, an air switch 2 and a switch cabinet 6. The circuit breaker 1 and the air switch 2 are both installed on the switch cabinet 6. An operating mechanism 5 is provided on one side of the circuit breaker 1 and the air switch 2.

[0026] It should be noted here that the 34# and 39# terminals in the closing control circuit of the circuit breaker 1 (taking the dry quenching high-voltage distribution room as an example) are connected to the upper and lower terminals (normally open contacts) of the small air switch 2 using extended wires, fixed to the switch cabinet 6 and marked.

[0027] The operating mechanism 5 includes two mounting plates 51 installed inside the switch cabinet 6, an L-shaped rod 52 is fixedly arranged above the mounting plate 51, a limit plate 53 is fixedly installed on one side of the L-shaped rod 52, and a slide groove 54 is opened on the outer wall of the opposite side of the two limit plates 53, a limit column 58 is fixedly arranged in the slide groove 54, and a connecting plate 57 is slidably arranged between the two limit columns 58, a control component 2 56 is arranged above the control button 3 on the circuit breaker 1, and a control component 1 55 is arranged above the switch button 4 on the air switch 2.

[0028] It should be noted here that in order to avoid the closing circuit being connected for a long time, the push plate is pulled outward, so that the connecting plate 57 simultaneously pulls the connecting rod 1 551 and the connecting rod 2 561 outward, and the air switch 2 is first disconnected through the control column 552 on the connecting rod 1 551. At this time, the connecting rod 2 561 pulls the control plate 563, so that the control button 3 is re-located below the first section.

[0029] Buffer springs 59 are sleeved on the outer walls of the limiting columns 58 on both sides of the connecting plate 57 , and a push plate is fixedly provided on a side wall of the connecting plate 57 away from the circuit breaker 1 .

[0030] The control member 55 includes a connecting rod 551 fixedly connected to one side of the connecting plate 57 , and two control columns 552 are fixedly provided on the outer wall of the connecting rod 551 on the other side away from the connecting plate 57 , and the two control columns 552 are respectively located on both sides of the switch button 4 .

[0031] It should be noted that the connecting rod 1 551 pushes the switch button 4 through the control column 552 to close the air switch 2.

[0032] The second control member 56 includes a second connecting rod 561 fixedly connected to the other side of the connecting plate 57, a third connecting rod 562 fixedly mounted on the top wall of the second connecting rod 561, and a control board 563 fixedly mounted on the top wall of the third connecting rod 562. A first section is transversely arranged on the bottom wall of the control board 563, inclined surfaces are symmetrically arranged on both sides of the first section, and a second section is transversely arranged on the side of the inclined surface away from the first section.

[0033] It should be noted here that the first cross-section below the limit plate 53 first slides with the top of the control button 3, and after the air switch 2 is closed, the inclined surface presses the control button 3 downward, so that the control button 3 is squeezed by the second cross-section, completing the closing operation of the circuit breaker 1.

[0034] The working process and principle of the utility model are as follows:

[0035] First, the connecting plate 57 is pushed to one side by the push plate, so that the connecting plate 57 moves along the limit column 58, and the connecting plate 57 simultaneously pushes the connecting rod 1 551 and the connecting rod 2 561 outward, and the connecting rod 1 551 pushes the switch button 4 through the control column 552, so that the air switch 2 is closed. At this time, the first section below the limit plate 53 first slides with the top of the control button 3. After the air switch 2 is closed, the inclined surface presses the control button 3 downward, so that the control button 3 is squeezed by the second section, and the closing operation of the circuit breaker 1 is completed. Subsequently, in order to avoid the closing circuit being connected for a long time, the push plate is pulled outward, so that the connecting plate 57 simultaneously pulls the connecting rod 1 551 and the connecting rod 2 561 outward, and first passes through the control column 552 on the connecting rod 1 551 to complete the disconnection of the air switch 2. At this time, the connecting rod 2 561 pulls the control plate 563, so that the control button 3 is re-located below the first section.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A circuit breaker opening and closing operating mechanism for a high-voltage switch cabinet, comprising a circuit breaker (1), an air switch (2) and a switch cabinet (6), wherein the circuit breaker (1) and the air switch (2) are both mounted on the switch cabinet (6), characterized in that: An operating mechanism (5) is provided on one side of the circuit breaker (1) and the air switch (2); The operating mechanism (5) comprises two mounting plates (51) mounted inside the switch cabinet (6); an L-shaped rod (52) is fixedly arranged above the mounting plate (51); a limit plate (53) is fixedly arranged on one side of the L-shaped rod (52); a slide groove (54) is provided on the outer wall of the two limit plates (53) on the opposite side; a limit column (58) is fixedly arranged in the slide groove (54); a connecting plate (57) is slidably arranged between the two limit columns (58); a control component 2 (56) is arranged above the control button (3) on the circuit breaker (1); and a control component 1 (55) is arranged above the switch button (4) on the air switch (2).

2. A circuit breaker opening and closing operating mechanism for a high-voltage switch cabinet according to claim 1, characterized in that: The limiting columns (58) are sleeved with buffer springs (59) on the outer walls of both sides of the connecting plate (57), and a push plate is fixedly arranged on a side wall of the connecting plate (57) away from the circuit breaker (1).

3. A circuit breaker opening and closing operating mechanism for a high-voltage switch cabinet according to claim 1, characterized in that: The control member 1 (55) comprises a connecting rod 1 (551) fixedly connected to one side of the connecting plate (57), and two control columns (552) are fixedly arranged on the outer wall of the other side of the connecting rod 1 (551) away from the connecting plate (57), and the two control columns (552) are respectively located on both sides of the switch button (4).

4. A circuit breaker opening and closing operating mechanism for a high-voltage switch cabinet according to claim 1, characterized in that: The control member 2 (56) comprises a connecting rod 2 (561) fixedly connected to the other side of the connecting plate (57), a connecting rod 3 (562) is fixedly mounted on the top wall of the connecting rod 2 (561), and a control plate (563) is fixedly mounted on the top wall of the connecting rod 3 (562).

5. A circuit breaker opening and closing operating mechanism for a high-voltage switch cabinet according to claim 4, characterized in that: A first cross section is transversely arranged on the bottom wall of the control panel (563), inclined surfaces are symmetrically arranged on both sides of the first cross section, and a second cross section is transversely arranged on a side of the inclined surface away from the first cross section.

Images