Drawer type circuit breaker side plate transmission structure

Abstract

The utility model discloses a drawer type circuit breaker side plate transmission structure which comprises a side plate (1), a guide rail (2) is arranged on the side plate (1), a sliding plate (3) is installed on the guide rail (2) and can slide back and forth under the action of external force, and a first transmission gear (4) is installed on the side plate (1) and located outside the guide rail (2). The first transmission gear (4) is meshed with a second transmission gear (5) arranged on the sliding plate (3), transmission teeth (301) are arranged on the sliding plate (3), and the first transmission gear (4) is in meshed transmission with the second transmission gear (5) and is also meshed with the transmission teeth (301) to drive the sliding plate (3) to move at the same time. According to the whole transmission structure, the number of transmission parts on the side plates is reduced through rearrangement and design of the transmission structure on the side plates, the transmission structure is more compact, the size is reduced, and transmission is stable and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker technology, specifically relating to a side plate transmission structure for a drawer-type circuit breaker. Background Technology

[0002] Circuit breakers come in various structures depending on their performance requirements. Among them, the withdrawable frame circuit breaker is a commonly used structure in the low-voltage electrical industry, mainly consisting of the circuit breaker body and the drawer base. When the circuit breaker needs maintenance or other operation, the circuit breaker body must be pulled out of the drawer base, at which point the circuit breaker body is separated from the main circuit. To meet the requirements of operator safety, a safety door is installed between the circuit breaker body and the main circuit for isolation to prevent electric shock, and the safety door must also be able to be opened when the circuit breaker body needs to be connected to the main circuit.

[0003] Chinese patent ZL202022770201.3 discloses a universal circuit breaker drawer seat transmission device, including a drawer seat side plate, a drawer seat bottom plate, a transmission screw, a rack and pinion slide plate, a rotating shaft, a first sector gear, a second sector gear, and a sliding mechanism. The sliding mechanism includes a full gear, a horizontal rack, and a slide plate. A horizontal track is provided on the inner wall of the drawer seat side plate. The slide plate is fixed to both sides of the circuit breaker body and slidably connected to the horizontal track. The horizontal rack is fixed to the slide plate. The full gear is rotatably fixed to the inner wall of the drawer seat side plate, with its upper end meshing with the horizontal rack and its lower end meshing with the second sector gear. This transmission device achieves smooth transmission of the circuit breaker body with uniform transmission speed, effectively reducing transmission resistance, operating force, and force intensity. However, it has a large number of parts and an excessively large size, increasing product cost. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing universal circuit breaker drawer seat transmission devices, which have a large number of parts, excessive size, and increased product cost. This utility model provides a side plate transmission structure for drawer-type circuit breakers. By redesigning and rearranging the transmission structure on the side plate, the number of transmission parts on the side plate is reduced, the transmission structure is more compact, the size is reduced, and the transmission is stable and reliable.

[0005] Technical solution

[0006] To achieve the above technical objectives, this utility model provides a drawer-type circuit breaker side plate transmission structure, which includes a side plate and a guide rail on the side plate. The guide rail is mounted on the side plate and located inside the side plate. A sliding plate is mounted on the guide rail and can slide back and forth under the action of external force. The characteristic is that: a first transmission gear is mounted on the side plate and its rotation center is located outside the guide rail. The first transmission gear meshes with a second transmission gear mounted on the sliding plate. The sliding plate is provided with transmission teeth. While the first transmission gear meshes with the second transmission gear, it also meshes with the transmission teeth to drive the sliding plate to move.

[0007] In one embodiment, the second transmission gear is provided with a striking part, which is linked with a pressure plate provided on the side plate.

[0008] In one embodiment, the first transmission gear is a sector gear, which is mounted on a rotating shaft between the side plate and the guide rail.

[0009] In one embodiment, the second transmission gear can drive the pressure plate to rotate via the extended striking part during rotation. The pressure plate is rotatably mounted on the side plate, and a force-receiving part is provided at the position corresponding to the striking part on the pressure plate.

[0010] In one embodiment, the pressure plate is mounted on the side plate and is located on the upper and lower sides of the guide rail, respectively, along with the first transmission gear.

[0011] In one embodiment, the pressure plate is mounted on the side plate between the side plate and the guide rail.

[0012] In one embodiment, a limiting portion extends from the pressure plate and extends through a hole in the side plate.

[0013] In one embodiment, the transmission tooth is a straight tooth segment provided at the slot on the slide plate.

[0014] In one embodiment, the guide rail includes a straight guide rail one and a straight guide rail two, which are horizontally parallel to each other mounted on the side plate.

[0015] In one embodiment, the support plate and the slide plate are fixed together, with the support plate located between the first straight guide rail and the second straight guide rail.

[0016] Beneficial effects

[0017] This utility model provides a side plate transmission structure for a drawer-type circuit breaker. It includes a side plate with a guide rail. A sliding plate is mounted on the guide rail and can slide back and forth under external force. A first transmission gear is mounted on the side plate outside the guide rail and meshes with a second transmission gear mounted on the sliding plate. The sliding plate has transmission teeth. Simultaneously, the first transmission gear meshes with the second transmission gear and also with the transmission teeth to drive the sliding plate. Through a redesign and rearrangement of the transmission structure on the side plate, the number of transmission parts on the side plate is reduced, resulting in a more compact transmission structure, smaller size, and stable and reliable transmission. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Appendix Figure 1 This is a schematic diagram of the front structure in an embodiment of this utility model. Figure 1 ;

[0020] Appendix Figure 2 This is a schematic diagram of the rear transmission in an embodiment of this utility model;

[0021] Appendix Figure 3a This is a front perspective view of an embodiment of this utility model;

[0022] Appendix Figure 3b This is a three-dimensional schematic diagram of the support plate in an embodiment of this utility model;

[0023] Appendix Figure 3c This is a three-dimensional schematic diagram of the skateboard in an embodiment of this utility model;

[0024] Appendix Figure 4 This is a schematic diagram of the transmission in an embodiment of this utility model; Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0030] Example

[0031] As attached Figure 1 and 2 As shown, a drawer-type circuit breaker side plate drive structure includes a side plate 1, on which a guide rail 2 is mounted. The guide rail 2 is mounted on the side plate 1 and located inside the side plate 1. The guide rail 2 includes a first straight guide rail 201 and a second straight guide rail 202, which are horizontally parallel to each other on the side plate 1, as shown in the attached figure. Figure 3bThe support plate 8 and the slide plate 3 are riveted together and located between the first straight guide rail 201 and the second straight guide rail 202. The slide plate 3 is mounted on the guide rail 2, with its front end sliding in cooperation with both the first straight guide rail 201 and the second straight guide rail 202, and its rear end sliding only in cooperation with the first straight guide rail 201. The support plate 8 slides in cooperation with the second straight guide rail 202, increasing the strength of the slide plate 3. The slide plate 3, mounted on the guide rail 2, can slide back and forth under external force. The first transmission gear 4 is mounted on the side plate 1, with its rotation center located outside the guide rail 2. The first transmission gear 4 meshes with the second transmission gear 5 disposed on the slide plate 3, as shown in the attached diagram. Figure 3c The slide plate 3 shown is provided with a transmission gear 301. The first transmission gear 4 meshes with the second transmission gear 5 while simultaneously engaging with the transmission gear 301 to drive the slide plate 3. Furthermore, the second transmission gear 5 is provided with a striking part 501, which is linked to a pressure plate 6 provided on the side plate 1. The pressure plate 6 is rotatably mounted on the side plate 1, and a force-receiving part 604 is provided on the pressure plate 6 corresponding to the striking part 501.

[0032] In this embodiment, as shown in the appendix Figure 4 As shown, the first transmission gear 4 is a sector gear, mounted on the rotating shaft 7 between the side plate 1 and the guide rail 2. The second transmission gear 5 is an irregularly shaped gear, which, during rotation, can drive the pressure plate 6 to rotate via the extended striking part 501. The pressure plate 6 is mounted on the side plate 1 between the side plate 1 and the guide rail 2. The pressure plate 6 and the first transmission gear 4 are located on opposite sides of the guide rail 2. (See attached diagram) Figure 3a As shown, a limiting part 601 extends from the pressure plate 6, and the limiting part 601 extends out of the through hole 101 on the side plate 1. (See attached diagram) Figure 1 As shown, the transmission tooth 301 is a straight tooth segment provided at the groove 3a on the slide plate 3.

[0033] The working process of this embodiment is as follows: During the pulling out of the drawer-type circuit breaker, the drive device (generally a motor) starts and drives the rotating shaft 7 to rotate. During the rotation of the rotating shaft 7, the first transmission gear 4 rotates. During the rotation of the first transmission gear 4, the second transmission gear 5 rotates. At the same time, the sliding plate 3 is moved through the meshing of the transmission gear 301. During the rotation of the second transmission gear 5, the extended striking part 501 can drive the pressure plate 6 to rotate to the position shown in the attached figure. Figure 4 The location.

[0034] To be detailed, as shown in the attached document. Figure 1 and 3aAs shown, during the rotation of the first transmission gear 4, the second transmission gear 5 is driven to rotate. During the rotation of the second transmission gear 5, the extended striking part 501 drives the pressure plate 6 to rotate. The limiting part 601 moves within the through hole 101, making the movement of the pressure plate 6 more stable. The tripping linkage part 602 on the pressure plate 6 strikes the tripping shaft, causing the circuit breaker to trip. Simultaneously, during the rotation of the first transmission gear 4, the meshing of the transmission gear 301 drives the sliding plate 3 to move, causing the circuit breaker body to move into and out of the drawer seat.

[0035] It should be noted that the drawer-type circuit breaker includes two opposing side plate drive structures, which are symmetrical. The circuit breaker body is located between the two side plate drive structures, that is, between the two side plates 1. (Appendix) Figure 3a The left-side side plate transmission structure is attached. Figure 4 This is the right-side side plate transmission structure. (Attached) Figure 4 Side panel 1 is hidden. (See attached image) Figure 4 As shown, the limiting part 501 on the second transmission gear 5 includes a top surface 5011 and side surfaces 5012 and 5013. A force-bearing part 604, including a top surface 6041 and side surfaces 6042 and 6043, is provided on the pressure plate 6 at a location corresponding to the limiting part 501 on the second transmission gear 5. (See attached diagram) Figure 3a As shown, when the circuit breaker body is moved into the drawer seat, the first transmission gear 4 rotates clockwise, and the slide plate 3 moves forward. Simultaneously, the rotation of the first transmission gear 4 drives the second transmission gear 5 to rotate counterclockwise. During the rotation of the second transmission gear 5, the extended striking part 501 causes the pressure plate 6 to rotate clockwise around the rotation center 603. During the process of moving the circuit breaker body into the drawer seat, side surface 5012 contacts side surface 6043, and after contacting top surface 5011 and top surface 6041, it rotates to contact side surface 5013 and side surface 6042, causing the tripping linkage part 602 to move along the corresponding trajectory. When it is in the contact position between top surface 5011 and top surface 6041, the pressure plate 6 rotates clockwise around the rotation center 603 to its maximum angle. Within this angle and a certain range close to this angle, the tripping linkage part 602 strikes the tripping shaft, causing the circuit breaker to trip. This ensures that the circuit breaker body is moved into the drawer seat in a tripped state. When the circuit breaker body is moved out of the drawer, the entire transmission structure moves in the opposite direction, thereby ensuring that the circuit breaker body is moved out of the drawer in the tripped state.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A drawer-type circuit breaker side plate transmission structure, comprising a side plate (1), wherein a guide rail (2) is provided on the side plate (1), the guide rail (2) is mounted on the side plate (1) and located inside the side plate (1), and a sliding plate (3) is mounted on the guide rail (2) and can slide back and forth under the action of external force, characterized in that: The first transmission gear (4) is mounted on the side plate (1) and its rotation center is located outside the guide rail (2). The first transmission gear (4) meshes with the second transmission gear (5) set on the slide plate (3). The slide plate (3) is provided with transmission teeth (301). While the first transmission gear (4) meshes with the second transmission gear (5) for transmission, it also meshes with the transmission teeth (301) to drive the slide plate (3) to move.

2. The drawer-type circuit breaker side plate transmission structure as described in claim 1, characterized in that: The second transmission gear (5) is provided with a striking part (501), which is linked with the pressure plate (6) provided on the side plate (1).

3. The drive structure for a side plate of a draw-out circuit breaker according to claim 1, wherein: The first transmission gear (4) is a sector gear, and the first transmission gear (4) is mounted on the rotating shaft (7) between the side plate (1) and the guide rail (2).

4. The drive structure for a side plate of a draw-out circuit breaker according to claim 2, wherein: During the rotation of the second transmission gear (5), the pressure plate (6) can be driven to rotate through the extended striking part (501). The pressure plate (6) is rotatably mounted on the side plate (1). A force-bearing part (604) is provided at the position corresponding to the striking part (501) of the pressure plate (6).

5. The drive structure for a side plate of a draw-out circuit breaker according to claim 2, wherein: The pressure plate (6) is mounted on the side plate (1) and is located on the upper and lower sides of the guide rail (2) respectively with the first transmission gear (4).

6. A drive structure for a side plate of a draw-out circuit breaker as defined in claim 2, characterized in that: The pressure plate (6) is mounted on the side plate (1) and located between the side plate (1) and the guide rail (2).

7. A drawer-type circuit breaker side plate transmission structure as described in claim 2 or 5, characterized in that: A limiting part (601) extends out of the pressure plate (6), and the limiting part (601) extends out of the through hole (101) on the side plate (1).

8. The side plate transmission structure of a drawer-type circuit breaker as described in claim 1, characterized in that: The transmission tooth (301) is a straight tooth segment provided at the groove (3a) on the slide plate (3).

9. The drawer-type circuit breaker side plate transmission structure as described in claim 1, characterized in that: The guide rail (2) includes a straight guide rail one (201) and a straight guide rail two (202), which are horizontally parallel to each other on the side plate (1).

10. The drive structure for a side plate of a draw-out circuit breaker as claimed in claim 9, characterized in that: The support plate (8) and the slide plate (3) are fixed together, and the support plate (8) is located between the first straight guide rail (201) and the second straight guide rail (202).

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