Circuit breaker handle driving mechanism of drawer type switch cabinet

Abstract

The utility model provides a breaker handle driving mechanism of a drawer type switch cabinet, comprising a support fixed on an operation panel of a breaker; the driving plate is installed on the support in a sliding mode, two rolling shafts arranged in parallel are installed on the driving plate, a movable groove allowing a circuit breaker handle to stretch into is oppositely formed between the two rolling shafts, and the driving plate drives the circuit breaker handle to act through the rolling shafts. Therefore, rolling friction exists between the rolling shaft and the circuit breaker handle, the friction force is small, abrasion of the circuit breaker handle is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, and particularly relates to a breaker handle driving mechanism for a drawer-type switch cabinet. Background Art

[0002] A drawer-type switch cabinet is a device widely used in the power system. It is made of steel plates to form a closed shell, and electrical components of the incoming and outgoing line circuits are all installed in the retractable drawers. As a centralized control power distribution center, the drawer-type switch cabinet has high reliability, safety and interchangeability, and is widely used in industrial and mining enterprises and high-rise buildings with high requirements for power supply reliability.

[0003] The existing drawer-type switch cabinet includes a drawer, a breaker, an operating handle and a transmission mechanism. The operating handle drives the breaker handle to act through the transmission mechanism, so as to switch the breaker on and off. The transmission mechanism includes a slide plate slidably installed on the breaker. The slide plate is provided with a limiting groove for inserting the breaker handle. When the slide plate reciprocates, the side wall of the limiting groove abuts against the breaker handle, thereby driving the breaker handle to rotate. The inventor found during use that since the slide plate is a metal plate and the breaker handle is a plastic plate, the breaker handle is easily worn and broken, shortening the service life of the breaker. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the breaker handle in the prior art is easily worn and has a short service life, so as to provide a breaker handle driving mechanism for a drawer-type switch cabinet with a long service life.

[0005] To this end, the utility model provides a breaker handle driving mechanism for a drawer-type switch cabinet, including: a bracket fixed on the operation panel of the breaker; a driving plate slidably installed on the bracket. Two parallel rollers are installed on the driving plate, and an activity groove for the breaker handle to extend into is formed relatively between the two rollers. The driving plate drives the breaker handle to act through the rollers.

[0006] The driving plate is formed with an opening groove corresponding to the operation panel of the breaker. First mounting plates bent and extending towards the operation panel are arranged on two opposite inner walls of the opening groove, and two rollers are installed between the two first mounting plates.

[0007] The bracket is in a shape of a capital "J".

[0008] The bracket in the shape of a capital "J" includes a main bracket plate, and second mounting plates respectively arranged on both sides of the main bracket plate and bent and connected to it. A receiving cavity suitable for installing the driving plate and the rollers is formed between the main bracket plate and the operation panel.

[0009] A second long slot is formed on the second mounting plate, and after a screw passes through the second long slot, it is fixed to the circuit breaker.

[0010] On the back of the main support plate, there are two Z-shaped third mounting plates arranged mirror-symmetrically along its center. The Z-shaped third mounting plate includes a second connecting plate that fits and is fixed to the main support plate, and a third connecting plate that is bent and connected to the second connecting plate. A sliding groove for the driving plate to slide into is formed between the second connecting plate and the main support plate.

[0011] The technical solution of the present utility model has the following advantages:

[0012] 1. For the circuit breaker handle driving mechanism provided by the present utility model, the driving plate is slidably mounted on the bracket. Two parallel rollers are mounted on the driving plate. An activity slot for the circuit breaker handle to extend into is formed relatively between the two rollers. The driving plate drives the circuit breaker handle to act through the rollers. In this way, the friction between the rollers and the circuit breaker handle is rolling friction, the friction force is small, the wear of the circuit breaker handle is reduced, and the service life is extended.

[0013] 2. For the circuit breaker handle driving mechanism provided by the present utility model, an opening slot corresponding to the operation panel of the circuit breaker is formed on the driving plate. First mounting plates that are bent and extended towards the operation panel are provided on two opposite inner walls of the opening slot. Two rollers are mounted between the two first mounting plates. In this way, the two first mounting plates for mounting the rollers have the advantages of simple structure and convenient production.

[0014] 3. For the circuit breaker handle driving mechanism provided by the present utility model, on the back of the main support plate, there are two Z-shaped third mounting plates arranged mirror-symmetrically along its center. The Z-shaped third mounting plate includes a second connecting plate that fits and is fixed to the main support plate, and a third connecting plate that is bent and connected to the second connecting plate. A sliding groove for the driving plate to slide into is formed between the second connecting plate and the main support plate. The Z-shaped third mounting plate has the advantages of simple structure and convenient production. Description of the Drawings

[0015] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. 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.

[0016] Figure 1 It is a three-dimensional view of the circuit breaker and the handle driving mechanism of the present utility model;

[0017] Figure 2 It is an exploded structural schematic diagram of the handle driving mechanism;

[0018] Figure 3 It is a sectional view of the handle driving mechanism.

[0019] Description of the reference numerals in the drawings:

[0020] 51. Circuit breaker; 52. Operation panel; 53. Bracket; 54. Driving plate; 55. Roller; 56. Circuit breaker handle; 57. Movable slot; 58. Open slot; 59. Main bracket plate; 60. Second long slot; 61. First mounting plate; 62. Second mounting plate; 63. Third mounting plate; 64. Second connecting plate; 65. Third connecting plate; 66. Slide slot. Detailed implementation manners

[0021] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Embodiment

[0026] This embodiment provides a circuit breaker handle driving mechanism for a drawer-type switchgear, as shown in Figure 1 andFigure 3 As shown, it includes a bracket 53, a driving plate 54 and a third mounting plate 63.

[0027] As Figure 1 shown, the bracket 53 is fixed on the operation panel 52 of the circuit breaker 51. The bracket 53 is arranged in a C-shape. As Figure 2 shown, the C-shaped bracket 53 includes a main bracket plate 59, and second mounting plates 62 which are respectively arranged on both sides of the main bracket plate 59 and are bent and connected thereto. An accommodation cavity suitable for installing the driving plate 54 and the roller 55 is formed between the main bracket plate 59 and the operation panel 52. Second long holes 60 or round holes are formed on the second mounting plates 62. After screws pass through the second long holes 60 or round holes, they are fixed to the circuit breaker 51.

[0028] The driving plate 54 is slidably installed on the bracket 53. As Figure 2 and Figure 3 shown, two parallel rollers 55 are installed on the driving plate 54. An activity slot 57 for the circuit breaker handle 56 to extend into is relatively formed between the two rollers 55. The driving plate 54 drives the circuit breaker handle 56 to act through the rollers 55. In this embodiment, an opening slot 58 corresponding to the operation panel 52 of the circuit breaker 51 is formed on the driving plate 54. First mounting plates 61 which are bent and extended towards the operation panel 52 are arranged on two opposite inner walls of the opening slot 58. Two rollers 55 are installed between the two first mounting plates 61. Shaft holes (not shown in the figure) suitable for installing the ends of the rollers 55 are formed on the first mounting plates 61.

[0029] Two third mounting plates 63 are installed on the back surface of the main bracket plate 59 and are mirror-symmetrically arranged along the center of the main bracket plate 59. The Z-shaped third mounting plate 63 includes a second connecting plate 64 which is attached and fixed to the main bracket plate 59, and a third connecting plate 65 which is bent and connected to the second connecting plate 64. A sliding slot 66 for the driving plate 54 to slide into is formed between the second connecting plate 64 and the main bracket plate 59.

[0030] For the circuit breaker handle driving mechanism provided by the present utility model, the driving plate 54 is slidably installed on the bracket 53. Two parallel rollers 55 are installed on the driving plate 54. An activity slot 57 for the circuit breaker handle 56 to extend into is relatively formed between the two rollers 55. The driving plate 54 drives the circuit breaker handle 56 to act through the rollers 55. In this way, the rolling friction exists between the rollers 55 and the circuit breaker handle 56, the frictional force is small, the wear of the circuit breaker handle is reduced, and the service life is prolonged.

[0031] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of this utility model creation.

Claims

1. A circuit breaker handle driving mechanism for a drawer-type switchgear, characterized in that, Including: A bracket (53) fixed to the operation panel (52) of the circuit breaker (51); A drive plate (54) slidably mounted on the bracket (53). Two parallel rollers (55) are mounted on the drive plate (54). An activity slot (57) for the circuit breaker handle (56) to extend into is formed relatively between the two rollers (55). The drive plate (54) drives the circuit breaker handle (56) to act through the rollers (55).

2. The circuit breaker handle driving mechanism of the drawer-type switchgear according to claim 1, characterized in that, The drive plate (54) is formed with an opening slot (58) corresponding to the operation panel (52) of the circuit breaker (51). First mounting plates (61) bent and extended towards the operation panel (52) are provided on two opposite inner walls of the opening slot (58). Two rollers (55) are mounted between the two first mounting plates (61).

3. The circuit breaker handle driving mechanism of the drawer-type switchgear according to claim 1 or 2, characterized in that, The bracket (53) is in a shape of a capital letter "J".

4. The circuit breaker handle driving mechanism of the draw-out switchgear according to claim 3, characterized in that, The bracket (53) in the shape of a capital letter "J" includes a main bracket plate (59), and second mounting plates (62) respectively arranged on two sides of the main bracket plate (59) and bent and connected thereto. An accommodation cavity suitable for mounting the drive plate (54) and the rollers (55) is formed between the main bracket plate (59) and the operation panel (52).

5. The circuit breaker handle driving mechanism of the drawer-type switchgear according to claim 4, characterized in that, Second long holes (60) are formed in the second mounting plates (62). Screws pass through the second long holes (60) and are fixed to the circuit breaker (51).

6. The circuit breaker handle driving mechanism of the drawer-type switchgear according to claim 4, characterized in that, On the back of the main bracket plate (59), there are two Z-shaped third mounting plates (63) arranged mirror-symmetrically along its center. The Z-shaped third mounting plates (63) include second connecting plates (64) fittingly fixed to the main bracket plate (59), and third connecting plates (65) bent and connected to the second connecting plates (64). A sliding slot (66) for the drive plate (54) to slide into is formed between the second connecting plates (64) and the main bracket plate (59).

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