A handle reset structure and circuit breaker

Abstract

The utility model provides a handle reset structure and circuit breaker relates to circuit breaker handle technical field, handle reset structure includes casing, reset spring, outer handle and inner handle, outer handle is connected with inner handle transmission, is provided with spring mounting portion and spring joint portion on inner handle, spring mounting portion is set up as column, spring mounting portion is used for installing reset spring, is provided with spring cooperation portion on casing, is provided with casing connection end and inner handle connection end on reset spring, through installing a reset spring on the inner handle of linkage pole, when reset spring assembly, only need to make reset spring axial direction to the inside movement along spring mounting portion, make one end foot of reset spring fixed on the shell, the other end foot is stuck on inner handle, and the installation process is simple and convenient, and spring is not easy to deform, avoids the problem that spring deformation influences product handle reset strength, and the dismounting of reset spring is also relatively simple, and is convenient for overhauling.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker handle technology, and in particular to a handle reset structure and a circuit breaker. Background Technology

[0002] Currently, 1P+N type circuit breakers on the market are generally assembled from bottom to top, with a single operating handle driving the two-pole operating mechanism. The two-pole contacts are closed via a linkage shaft and an inner handle. However, this type of product has a drawback: the handle return spring is located under the outer handle, making assembly difficult. During assembly, the spring is easily deformed, affecting the handle's return force. This application addresses these shortcomings. Utility Model Content

[0003] The purpose of this utility model is to provide a handle reset structure and circuit breaker. By installing a reset spring on the inner handle of the linkage pole, the problems of difficult assembly and easy deformation of the handle reset spring at present are solved.

[0004] To solve the above problems, this utility model provides a handle reset structure, including a housing, a reset spring, an outer handle, and an inner handle. The outer handle is kinetically connected to the inner handle. The inner handle is provided with a spring mounting part and a spring locking part. The spring mounting part is columnar and is used to install the reset spring. The housing is provided with a spring mating part. The reset spring is provided with a housing connecting end and an inner handle connecting end. When the reset spring is assembled, it is fitted onto the spring mounting part and moves inward along its axial direction, so that the housing connecting end and the inner handle connecting end respectively mate with the spring mating part and the spring locking part. The installation process is simple and convenient, and the spring is not easily deformed.

[0005] According to one embodiment of the present invention, the housing connection end and the inner handle connection end are formed by bending the two ends of the return spring.

[0006] According to one embodiment of the present invention, the spring latching part is columnar, and there is a gap between the spring latching part and the spring mounting part for positioning the reset spring, which further facilitates the installation of the reset spring.

[0007] According to one embodiment of the present invention, the spring snap-fit ​​part is provided with a spring contact surface, which matches the contour shape of the reset spring, so as to guide during installation and stabilize after installation.

[0008] Optionally, the connection between the housing connecting end and the spring mating part can be fixed or non-fixed. The fixed connection can be achieved by welding, bolts or other connecting parts. The non-fixed connection can be achieved by snap-fit.

[0009] According to one embodiment of the present invention, the spring mating part has a protruding structure, and the connection between the housing connecting end and the spring mating part is not fixed. In the initial state, there is a gap between the housing connecting end and the spring mating part, which makes the spring installation easier and further avoids spring deformation.

[0010] According to one embodiment of the present invention, a spring limiting part is provided on the inner handle to limit the installation position of the reset spring.

[0011] A circuit breaker including the aforementioned handle reset structure.

[0012] The beneficial effects of this utility model are that by installing a reset spring on the inner handle of the linkage pole, when assembling the reset spring, it is only necessary to move the reset spring inward along the axial direction of the spring mounting part so that one end of the reset spring is fixed on the outer shell and the other end is stuck on the inner handle. The installation process is simple and convenient, the spring is not easily deformed, and the problem of spring deformation affecting the reset force of the product handle is avoided. In addition, the disassembly of the reset spring is also relatively simple and convenient for maintenance. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of the circuit breaker;

[0015] Figure 2 This is a schematic diagram of the circuit breaker from another perspective.

[0016] Figure 3 This is a structural diagram of the return spring, outer handle, and inner handle.

[0017] Figure 4 This is a schematic diagram of the return spring and the inner handle. Detailed Implementation

[0018] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.

[0019]

Example 1

[0020] A handle reset structure, such as Figure 1It includes a housing 1, a return spring 3, an outer handle 2 and an inner handle 4. The outer handle 2 and the inner handle 4 are connected by a pin shaft, and the inner handle 4 is connected to the operating mechanism 5. This part is consistent with the handle operation module of a traditional circuit breaker.

[0021] like Figure 3 , Figure 4 The inner handle 4 is provided with a spring mounting part 41 and a spring locking part 42. The spring mounting part 41 is cylindrical and the spring locking part 42 is cylindrical. The spring mounting part 41 is used to install the reset spring 3. There is a gap 44 between the spring locking part 42 and the spring mounting part 41 for positioning and accommodating the reset spring 3. The spring locking part 42 is provided with a spring contact surface 43. The spring contact surface 43 is curved and is one end face of the gap 44. The spring contact surface 43 matches the contour shape of the reset spring 3, which plays a guiding role during installation and a stabilizing role after installation. The inner handle 4 is provided with a spring limiting part 45, which is used to limit the installation position of the reset spring 3.

[0022] The spring mounting part 41 and the spring snap-fit ​​part 42 are provided with structures such as holes for cooperating with the transmission components, thereby improving the integration of the inner handle 4.

[0023] The housing 1 is provided with a spring mating part 11. The housing connecting end 31 and the spring mating part 11 can be either fixedly connected or non-fixedly connected. In the fixed connection method, the spring mating part 11 and the housing connecting end 31 can be connected by welding, bolts or other connecting parts. In the non-fixed connection method, a snap-fit ​​type can be used.

[0024] In this embodiment, as Figure 2 The spring mating part 11 has a protruding structure to block the housing connection end 31. The housing connection end 31 and the spring mating part 11 are not fixedly connected. In the initial state, there is a gap between the housing connection end 31 and the spring mating part 11, which makes the spring installation easier and further avoids the spring being squeezed and deformed during installation.

[0025] The return spring 3 is provided with a housing connection end 31 and an inner handle connection end 32, which are formed by bending the two ends of the return spring 3.

[0026] When assembling the return spring 3, it is fitted onto the spring mounting part 41 and moves inward along its axial direction. After the return spring 3 contacts the spring limiting part 45, it is installed in place. At this time, the housing connecting end 31 and the inner handle connecting end 32 cooperate with the spring mating part 11 and the spring snap-fit ​​part 42 respectively, so that one end of the spring is fixed on the housing and the other end is snapped on the inner handle. The installation process is simple and convenient, the spring is not easily deformed, and the disassembly of the return spring 3 is also relatively simple, which is convenient for maintenance.

[0027] When the outer handle 2 is closed, the inner handle 4 will also rotate, and the return spring 3 will twist at a certain angle to store energy. When either the upper or lower mechanism is free to disengage, the return spring 3 will quickly push the inner handle 4 to reset, thereby driving the outer handle 2 to reset.

[0028] A circuit breaker including the aforementioned handle reset structure.

[0029] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. A handle reset structure, characterized in that: The device includes a housing (1), a return spring (3), an outer handle (2), and an inner handle (4). The outer handle (2) is connected to the inner handle (4) in a transmission manner. The inner handle (4) is provided with a spring mounting part (41) and a spring snap-fit ​​part (42). The spring mounting part (41) is cylindrical and is used to install the return spring (3). The housing (1) is provided with a spring mating part (11). The return spring (3) is provided with a housing connecting end (31) and an inner handle connecting end (32). When the return spring (3) is assembled, it is fitted onto the spring mounting part (41) and moves inward along its axial direction, so that the housing connecting end (31) and the inner handle connecting end (32) respectively mate with the spring mating part (11) and the spring snap-fit ​​part (42).

2. The handle reset structure of claim 1, wherein: The housing connection end (31) and the inner handle connection end (32) are formed by bending the two ends of the return spring (3).

3. The handle reset structure of claim 1, wherein: The spring latch (42) is columnar, and there is a gap (44) between the spring latch (42) and the spring mounting part (41) for positioning and resetting the spring (3).

4. The handle reset structure of claim 3, wherein: The spring latch (42) is provided with a spring contact surface (43), which matches the contour shape of the return spring (3).

5. The handle reset structure according to any one of claims 1-4, wherein: The connection between the housing connection end (31) and the spring mating part (11) is either fixed or non-fixed.

6. The handle reset structure of any one of claims 1-4, wherein: The spring mating part (11) has a protruding structure. In the initial state, there is a gap between the housing connection end (31) and the spring mating part (11) of the reset spring (3).

7. The handle reset structure of any one of claims 1-4, wherein: A spring limiting part (45) is provided on the inner handle (4).

8. A circuit breaker characterized by: Includes the handle reset structure as described in any one of claims 1-7.

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