Humanized operating handle of intelligent molded case circuit breaker

Abstract

The utility model discloses a humanized operating handle of an intelligent molded case circuit breaker, which comprises a molded case circuit breaker body and an operating handle arranged at the front end of the molded case circuit breaker body, and the operating handle comprises a handle body internally provided with a mounting port and a stretching type power assisting assembly arranged in the mounting port, an embedded opening is formed in the upper end of the handle body, two sets of strip-shaped grooves are symmetrically formed in the two sides of the embedded opening, locking pieces are installed in the strip-shaped grooves, the stretching type assistance assembly comprises a hollow plate, two sets of reset springs, a floating block, a connecting column and a top plate, the reset springs are symmetrically installed in the hollow plate, the upper ends of the two sets of reset springs are connected with the floating block, and the upper ends of the floating block are connected with the top plate. The floating block is slidably arranged in the hollow plate, and the upper end is connected with the top plate through two sets of connecting columns. The stretching type power assisting assembly arranged in the operating handle is arranged in the handle in a conventional state and can be popped out when needing to be used, operation is easy, and normal use of the handle is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of molded case circuit breakers, in particular to a humanized operating handle of an intelligent molded case circuit breaker. Background Art

[0002] A molded case circuit breaker is an electrical protection device used to detect faults and overload conditions in an electrical circuit and cut off the circuit when necessary. It is a circuit breaker with a plastic casing that provides electrical insulation and protects the internal components. The main components of a molded case circuit breaker include fuses, trigger mechanisms, thermal releases, and magnetic releases. A fuse is a current protection component that is usually made of metal wire. When an overload or short circuit occurs in a circuit, the fuse will break, interrupting the flow of current. The trigger mechanism is used to control the operation of the circuit breaker and can be manually operated or automatically triggered. Thermal releases and magnetic releases are two different fault conditions used to detect overloads and short circuits. Thermal releases trigger the circuit breaker by detecting the heat generated when the current exceeds the rated value, while magnetic releases trigger the circuit breaker by detecting instantaneous large currents in the circuit. The casing of a molded case circuit breaker is usually made of insulating plastic and has good electrical insulation properties, which can protect the internal circuit from the external environment and direct contact with touching electrical contacts. The dimensions and connection methods of molded case circuit breakers can be designed according to different application requirements to adapt to different electrical systems and installation requirements. Existing molded case circuit breakers generally include intelligent functions such as fault diagnosis and alarm, data recording and analysis, which effectively improve the protection effect of molded case circuit breakers.

[0003] However, the existing molded case circuit breakers have the following problems during use: the molded case circuit breaker is usually equipped with an operating handle for manually controlling the switch state and performing operations. The operating handle is located on the outer shell of the circuit breaker. However, during long-term idleness or aging, the operating handle may be blocked, resulting in laborious rotation operation. Therefore, it is necessary to design a corresponding technical solution to solve the existing technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a humanized operating handle for an intelligent molded case circuit breaker, which solves the technical problem that a molded case circuit breaker is usually equipped with an operating handle for manually controlling the switch state and performing operations, and the operating handle is located on the outer shell of the circuit breaker. However, during long periods of idleness or aging, the operating handle may be blocked, resulting in laborious rotation operation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a humanized operating handle of an intelligent molded case circuit breaker, comprising a molded case circuit breaker body and an operating handle installed at the front end of the molded case circuit breaker body, the operating handle comprising a handle body with an installation opening opened inside and a stretch-type power-assisting assembly built into the installation opening, an embedded opening opened at the upper end of the handle body, two groups of strip grooves symmetrically opened on both sides of the embedded opening, locking plates installed in the strip grooves, the stretch-type power-assisting assembly comprising a hollow plate, a reset spring, a floating block, a connecting column and a top plate, the reset springs are divided into two groups and symmetrically installed in the hollow plate, the upper ends of the two groups of reset springs are connected to the floating blocks, the floating blocks are slidably arranged in the hollow plate and the upper ends are connected to the top plate through two groups of connecting columns, a handle groove is formed between the top plate and the two groups of connecting columns, the top plate is located in the embedded opening and two groups of bayonet openings symmetrically opened on both sides, the bayonet openings are used in conjunction with the locking plates.

[0006] As a preferred embodiment of the utility model, the locking plate includes a pressure plate and an arc-shaped plate fixed to the outer end of the pressure plate, the two ends of the connection between the pressure plate and the arc-shaped plate are connected to the handle body through pins, and a clamping block is fixed to the inner end of the pressure plate, and the clamping block is buckled in the clamping port.

[0007] As a preferred embodiment of the utility model, the arc-shaped plate has an arc surface structure and an outer end thereof has a warped structure. A reset gasket is arranged below the arc-shaped plate. The reset gasket is made of rubber material and has a laminated structure.

[0008] As a preferred embodiment of the present invention, two groups of through openings are symmetrically opened at the bottom of the embedded opening, and the two groups of connecting columns pass through the two groups of through openings respectively.

[0009] As a preferred embodiment of the present invention, the length and width of the top plate are the same as the length and width of the embedded opening, and the thickness of the top plate is equal to the depth of the embedded opening.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. This scheme optimizes the operating handle structure of the existing molded case circuit breaker and designs a user-friendly operating handle. A stretch-type power-assisting component is arranged inside the handle. When the handle is blocked and difficult to turn, the stretch-type power-assisting component can be pulled outward to open. At this time, the staff can perform power-assisting operation by holding the stretch-type power-assisting component. In this way, the lever rotation method can improve the smoothness of the operation.

[0012] 2. The stretchable power-assisting component provided inside the operating handle of this solution is placed inside the handle under normal conditions and can be popped out when needed. The operation is simple and does not affect the normal use of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall structure diagram of the utility model;

[0014] Figure 2 This is a diagram showing the internal structure of the handle body of the utility model;

[0015] Figure 3 This is a structural diagram of the locking piece described in the utility model;

[0016] Figure 4 It is a local A structural diagram of the utility model.

[0017] In the figure: 1. Molded case circuit breaker body; 2. Mounting opening; 3. Handle body; 4. Embedded opening; 5. Strip groove; 6. Locking plate; 7. Hollow plate; 8. Reset spring; 9. Floating block; 10. Connecting column; 11. Top plate; 12. Handle groove; 13. Bayonet; 14. Pressure plate; 15. Arc plate; 16. Block; 17. Reset gasket; 18. Through opening. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-4 The utility model provides a technical solution: a humanized operating handle of an intelligent molded case circuit breaker, comprising a molded case circuit breaker body 1 and an operating handle installed at the front end of the molded case circuit breaker body 1, the operating handle comprising a handle body 3 with an installation opening 2 opened inside and a stretching power assist component built into the installation opening 2, an inner embedding opening 4 opened at the upper end of the handle body 3, two groups of strip grooves 5 symmetrically opened on both sides of the inner embedding opening 4, a locking piece 6 installed in the strip groove 5, and the stretching power assist component comprising a hollow Plate 7, return spring 8, floating block 9, connecting column 10 and top plate 11. The return spring 8 is divided into two groups and is symmetrically installed in the hollow plate 7. The upper ends of the two groups of return springs 8 are connected to the floating block 9. The floating block 9 is slidably set in the hollow plate 7 and the upper end is connected to the top plate 11 through two groups of connecting columns 10. A handle groove 12 is formed between the top plate 11 and the two groups of connecting columns 10. The top plate 11 is located in the embedded opening 4 and has two groups of bayonet 13 symmetrically opened on both sides. The bayonet 13 is used in conjunction with the locking plate 6.

[0020] Further improvement, such as Figure 3As shown: the locking plate 6 includes a pressing plate 14 and an arc plate 15 fixed to the outer end of the pressing plate 14. The two ends of the connection between the pressing plate 14 and the arc plate 15 are connected to the handle body 3 through a latch. A clamping block 16 is fixed to the inner end of the pressing plate 14, and the clamping block 16 is buckled in the bayonet 13. By pressing the pressing plate 14, the pressing plate 14 rotates around the latch and causes the clamping block 16 to disengage from the bayonet 13.

[0021] Further improvement, such as Figure 3 As shown: the arc plate 15 has an arc surface structure and the outer end is a warped structure, a reset gasket 17 is arranged under the arc plate 15, and the reset gasket 17 is made of rubber material and has a stacked structure, which is convenient for pushing up the arc plate 15 so that the block 16 is stuck in the bayonet 13.

[0022] Further improvement, such as Figure 4 As shown, two groups of through openings 18 are symmetrically opened at the bottom of the embedded opening 4, and two groups of connecting columns 10 pass through the two groups of through openings 18 respectively, so that the connecting columns 10 can move longitudinally along the through openings 18.

[0023] Specifically, the length and width of the top plate 11 are the same as those of the inner opening 4 , and the thickness of the top plate 11 is equal to the depth of the inner opening 4 , so that the top plate 11 can be easily accommodated in the inner opening 4 .

[0024] During use: When the staff finds it difficult to turn the operating handle, they can press the arc plate 15 to make the pressure plate 14 rotate around the latch and disengage the clamping block 16 from the clamping port 13. At this time, the floating block 9 floats up under the elastic force of the reset spring 8, and the connecting column 10 moves longitudinally along the through-hole 18 to disengage the top plate 11 from the embedded opening 4, thereby unfolding the stretch-type power-assisting assembly. At this time, the staff can hold the handle groove 12 and turn the operating handle to achieve the purpose of labor-saving rotation of the handle.

[0025] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0027] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A humanized operating handle for an intelligent molded case circuit breaker, comprising a molded case circuit breaker body (1) and an operating handle mounted at the front end of the molded case circuit breaker body (1), characterized in that: The operating handle comprises a handle body (3) with an installation opening (2) therein and a stretch-type power-assisting assembly built into the installation opening (2); an inner opening (4) is formed at the upper end of the handle body (3); two groups of strip grooves (5) are symmetrically formed on both sides of the inner opening (4); locking plates (6) are installed in the strip grooves (5); the stretch-type power-assisting assembly comprises a hollow plate (7), a reset spring (8), a floating block (9), a connecting column (10) and a top plate (11); the reset spring (8) is divided into a plurality of connecting columns (11) and a plurality of connecting columns (12); and the connecting columns (13) and a plurality of connecting columns (14) are connected to the handle body (3). Two groups are provided and symmetrically installed in the hollow plate (7), the upper ends of the two groups of return springs (8) are connected to the floating blocks (9), the floating blocks (9) are slidably arranged in the hollow plate (7) and the upper ends are connected to the top plate (11) through two groups of connecting columns (10), a handle groove (12) is formed between the top plate (11) and the two groups of connecting columns (10), the top plate (11) is located in the embedded opening (4) and two groups of bayonet holes (13) are symmetrically opened on both sides, and the bayonet holes (13) are used in conjunction with the locking plate (6).

2. The humanized operating handle of an intelligent molded case circuit breaker according to claim 1 is characterized in that: The locking plate (6) comprises a pressing plate (14) and an arc-shaped plate (15) fixed to the outer end of the pressing plate (14); the two ends of the connection between the pressing plate (14) and the arc-shaped plate (15) are connected to the handle body (3) through a latch; a clamping block (16) is fixed to the inner end of the pressing plate (14); and the clamping block (16) is buckled in the clamping port (13).

3. The humanized operating handle of an intelligent molded case circuit breaker according to claim 2 is characterized in that: The arc-shaped plate (15) has an arc surface structure and an outer end thereof has a warped structure. A reset pad (17) is arranged below the arc-shaped plate (15). The reset pad (17) is made of rubber material and has a laminated structure.

4. The humanized operating handle of an intelligent molded case circuit breaker according to claim 1 is characterized in that: Two groups of through openings (18) are symmetrically formed at the bottom of the embedded opening (4), and the two groups of connecting columns (10) pass through the two groups of through openings (18) respectively.

5. The humanized operating handle of an intelligent molded case circuit breaker according to claim 4 is characterized in that: The length and width of the top plate (11) are the same as the length and width of the embedded opening (4), and the thickness of the top plate (11) is equal to the depth of the embedded opening (4).

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