Circuit breaker handle test fixture
By designing a circuit breaker handle test fixture, the gripping structure is used to prevent handle wear, which solves the problem of handle wear in automated production, improves production efficiency and reduces scrap rate, and achieves operation convenience and time savings.
Patent Information
- Application Number
- CN202420796985.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-16
AI Technical Summary
In automated production, circuit breaker handles are prone to wear or scrap during running-in or testing, resulting in inconvenient operation and increased production costs.
A circuit breaker handle test fixture was designed, including a cylindrical body, a pressing head and a gripping structure. The gripping structure consists of fixed claws and movable claws. The movable claws are semi-arched and equipped with compression springs and large and small minions. Used to securely grab and release the product to prevent wear of the handle.
Effectively prevent the handle from being scrapped during running-in or testing, improve production efficiency, reduce the handle scrap rate, facilitate operation, and save time.
Smart Images
Figure CN222365066U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of application in the mechanical automation industry, in particular to a circuit breaker handle test fixture. Background Art
[0002] At present, in automated production, for the running-in of various parts in the circuit breaker or the subsequent testing process, it is necessary to move the handle to the closing or opening position. Usually, some handles are directly installed on the product. In this way, it is easy to damage the handle or wear it out during the running-in or testing stage, which makes the operation difficult, wastes time, and increases production costs. Utility Model Content
[0003] In view of the above technical problems, the utility model solves the technical problem that the handle is worn or scrapped due to the running-in or testing process, and provides a circuit breaker handle test fixture.
[0004] In order to solve the above technical problems, the technical solution provided by the utility model is: a circuit breaker handle test fixture, including a cylindrical body, a pressing head for convenient grasping / releasing of products is provided on the upper part of the cylindrical body, and a grasping structure engaged with the pressing head is provided at the lower end of the cylindrical body; the grasping structure includes a fixed claw fixed to the lower end of the cylindrical body and a movable claw matched with the fixed claw; the movable claw is semi-bow-shaped as a whole, one end of the movable claw is provided with a notch engaged with the pressing head, and the other end is provided with a large claw for grasping the product; the inner side edge of the bow of the movable claw is also provided with a compression spring for facilitating the resetting of the movable claw; the lower end of the fixed claw is provided with a small claw matched with the large claw.
[0005] Further: In the above-mentioned circuit breaker handle test fixture, the root of the large claw of the movable claw is also provided with a pin shaft fixedly connected to the cylindrical body. One end of the pressing head is provided with a force-applying handle, and the other end is provided with a convex hook that engages with the notch of the movable claw. The pressing head is provided with a rotating shaft fixedly connected to the cylindrical body. The lower side of the pressing head is provided with a force-applying spring for facilitating the resetting of the pressing head. The large claw is one, and the small claw is a pair. The lower part of the cylindrical body is also provided with a limit pin for limiting excessive loosening of the movable claw.
[0006] Compared with the prior art, the circuit breaker handle test fixture comprises a cylindrical body, the upper part of the cylindrical body is provided with a pressing head for convenient grasping / releasing of the product, the lower end of the cylindrical body is provided with a grasping structure that is buckled with the pressing head; the grasping structure comprises a fixed claw fixed to the lower end of the cylindrical body and a movable claw that cooperates with the fixed claw; the movable claw is semi-bow-shaped as a whole, one end of the movable claw is provided with a notch that is buckled with the pressing head, and the other end is provided with a large claw for grasping the product; the inner side of the bow of the movable claw is also provided with a compression spring for facilitating the resetting of the movable claw; the lower end of the fixed claw is provided with a small claw that cooperates with the large claw. The utility model solves the technical problem of the handle of the circuit breaker being scrapped during the running-in or testing, improves the production efficiency of the circuit breaker, and reduces the handle scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 This is a schematic diagram of a longitudinal section of a circuit breaker handle test fixture of the utility model;
[0008] Figure 2 This is an enlarged schematic diagram of the structure of the movable claw;
[0009] Figure 3 It is an enlarged schematic diagram of the structure of the pressing head;
[0010] Among them, 1 is a cylindrical body, 2 is a pressing head, 3 is a fixed claw, 4 is a movable claw, 5 is a notch, 6 is a large claw, 7 is a compression spring, 8 is a small claw, 9 is a pin shaft, 10 is a force pressure handle, 11 is a convex hook, 12 is a rotating shaft, 13 is a force spring, and 14 is a limit pin. DETAILED DESCRIPTION
[0011] In order to facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0012] Reference Figure 1 , 2As shown in Figure 3, a circuit breaker handle test fixture comprises a cylindrical body 1, a pressing head 2 for conveniently grasping / releasing a product is provided on the upper part of the cylindrical body, and a grasping structure that is buckled with the pressing head is provided at the lower end of the cylindrical body; the grasping structure comprises a fixed claw 3 fixed at the lower end of the cylindrical body and a movable claw 4 that cooperates with the fixed claw 3; the movable claw is semi-bow-shaped as a whole, a notch 5 that is buckled with the pressing head is provided at one end of the movable claw, and a large claw 6 that grasps the product is provided at the other end; a compression spring 7 that facilitates the reset of the movable claw is also provided on the inner side of the bow of the movable claw; a small claw 8 that cooperates with the large claw is provided at the lower end of the fixed claw 3. A pin shaft 9 that is fixedly connected to the cylindrical body is also provided at the root of the large claw of the movable claw. A force-applying pressure handle 10 is provided at one end of the pressing head, and a convex hook 11 that is buckled with the notch of the movable claw is provided at the other end. A rotating shaft 12 that is fixedly connected to the cylindrical body is provided on the pressing head. The lower side of the pressing head is provided with a force spring 13 for facilitating the resetting of the pressing head. The large claw is one, and the small claw is a pair. The lower part of the cylindrical body is also provided with a limit pin 14 for limiting the excessive loosening of the movable claw.
[0013] When the mechanical parts of the circuit breaker are being run-in or the product is being tested, the employee needs to press the pressing head 2, and the movable claw 4 will be in an open state under the action of the clamping spring 7. At the same time, the pin 13 acts as a limiter, so that the movable claw 4 can only be opened to a certain position. When the employee puts the fixture on the product, he presses the movable claw 4 by hand, and the movable claw 4 rotates at an angle on the positioning of the pin shaft 8. The pressing head 2 receives the force of the movable gripper 4 and rotates a part of the angle through the rotating shaft 12, which compresses the force spring 13. The large claw 6 of the movable gripper 4 and the small claw 8 on the fixed claw clamp the product at this time. When the employee releases his hand, the pressing head 2 will hook the movable claw 4 under the action of the force spring 13, and the clamping spring 7 will be compressed under the action of the movable claw 4, so that the movable claw 4 will not loosen the product, thereby clamping the product. When the product has been run-in or tested, the employee only needs to gently press the pressing head 2. Under the action of the employee's hand, the pressing head 2 rotates a certain angle through the rotating shaft 12, which will compress the force spring 13. At this time, when the pressing head 2 rotates, the movable claw 4 opens the hook under the action of the compression spring 7, thereby releasing the product.
[0014] The circuit breaker handle test fixture of this embodiment allows employees to easily install the handle fixture before running-in or testing, which completely solves the problem of handle waste, is easy to operate, and saves time.
[0015] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled 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 methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. A circuit breaker handle test fixture, comprising a cylindrical body (1), characterized in that: The upper part of the cylindrical body is provided with a pressing head (2) for conveniently grasping / releasing the product, and the lower end of the cylindrical body is provided with a grasping structure that is buckled with the pressing head; the grasping structure includes a fixed claw (3) fixed to the lower end of the cylindrical body and a movable claw (4) that cooperates with the fixed claw; the movable claw is semi-bow-shaped as a whole, one end of the movable claw is provided with a notch (5) that is buckled with the pressing head, and the other end is provided with a large claw (6) for grasping the product; the inner side edge of the bow of the movable claw is also provided with a compression spring (7) for facilitating the resetting of the movable claw; the lower end of the fixed claw (3) is provided with a small claw (8) that cooperates with the large claw.
2. The circuit breaker handle test fixture according to claim 1, characterized in that: The root of the large claw of the movable claw is also provided with a pin shaft (9) fixedly connected to the cylindrical body.
3. The circuit breaker handle test fixture according to claim 2, characterized in that: The pressing head is provided with a force-applying pressure handle (10) at one end and a convex hook (11) that engages with the notch of the movable claw at the other end.
4. The circuit breaker handle test fixture according to claim 3, characterized in that: The pressing head is provided with a rotating shaft (12) fixedly connected to the cylindrical body.
5. The circuit breaker handle test fixture according to claim 4, characterized in that: A force spring (13) is provided at the lower side of the pressing head to facilitate the resetting of the pressing head.
6. The circuit breaker handle test fixture according to claim 5, characterized in that: The big claw is one, and the small claw is a pair.
7. The circuit breaker handle test fixture according to any one of claims 1 to 6, characterized in that: The lower part of the cylindrical body is also provided with a limit pin (14) for limiting the excessive loosening of the movable claw.