Electrical safety switch structure
Through the limit ball and extrusion sleeve structure, the problem of insufficient elastic force of the copper plate in the switch is solved, and an electrical safety switch structure that stabilizes electrical connection and prevents misoperation is realized.
Patent Information
- Application Number
- CN202422270821.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The elastic force between the copper plates in the existing switches is insufficient, resulting in poor contact and prone to equipment failure.
The limit ball and extrusion sleeve structure are adopted to fix the transmission block and contacts through the limit ball snap into the limit groove to ensure stable connection; when no electrical connection is required, the limit ball moves to prevent misoperation.
Improve the stability of the contacts, prevent misoperation, avoid accidental disconnection or contact of the contacts, and ensure the reliability of electrical connections.
Smart Images
Figure CN223066026U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of switch structures, and particularly to an electrical safety switch structure. Background Technique
[0002] A switch is an important electrical device in electrical engineering. In the prior art, there are various types of switches, such as knife switches. The knife switch realizes the opening and closing of the circuit by pushing the knife blade. When pushing and pulling, the copper sheets of the knife blade directly contact each other for conduction, and rely on the elastic force between the copper sheets to maintain adhesion. However, when pushing up the knife blade, the copper sheets are only adhered by the elastic force, which is not stable enough, and it is easy to cause poor contact and equipment failure. Therefore, an electrical safety switch structure is needed to improve this problem. Content of the Utility Model
[0003] The purpose of the utility model is to provide an electrical safety switch structure to solve the problems raised in the above background technique.
[0004] To achieve the above purpose, the utility model provides the following technical solution: An electrical safety switch structure includes a housing. A first contact is arranged at the lower end inside the housing, a second contact is arranged above the first contact inside the housing, and a fixing mechanism for fixing the second contact is arranged at the upper end inside the housing. The fixing mechanism includes a transmission block, a through groove, a limiting ball, a first limiting groove, a second limiting groove, and an extrusion sleeve. The transmission block is movably inserted through the middle part of the inner side of the housing, and is fixedly connected between the lower end of the transmission block and the second contact. A plurality of through grooves are evenly formed around the surface of the housing, and the limiting balls are movably engaged inside the through grooves. A first limiting groove is formed in the middle of the outer surface of the transmission block, and a second limiting groove is formed above the first limiting groove on the outer surface of the transmission block. The limiting balls are movably engaged inside the first limiting groove, and the extrusion sleeve is movably sleeved on the outside of the housing.
[0005] Preferably, a spring is sleeved on the outside of the housing at the lower end of the extrusion sleeve. The spring can automatically push the extrusion sleeve upward, so as to limit the limiting balls, prevent the limiting balls from moving left and right and moving out of the first limiting groove or the second limiting groove, thereby playing a role in fixing the position of the transmission block and the first contact.
[0006] Preferably, a notch is formed at the upper end of the inner side wall of the extrusion sleeve. When the notch is aligned with the limiting ball, the limiting ball is allowed to move left and right. As Figure 4 shown, at this time, the transmission block and the second contact can be in an automatic moving state, so that the second contact can be allowed to contact the first contact, or the second contact can be separated from the second contact.
[0007] Preferably, a convex block is fixedly arranged at the upper end of the transmission block, and the transmission block and the second contact can be conveniently inserted and pulled out up and down through the convex block.
[0008] Preferably, the first contact is made of elastic copper material. Through the first contact of the elastic copper material, when the second contact presses the first contact, the first contact can be opened to both sides. After the second contact is inserted into the first contact, under the elastic action of the first contact, the first contact can be closely attached to the outer surface of the second contact, so as to achieve electrical connection on the outside.
[0009] Preferably, pins are fixedly arranged on both sides of the lower end of the housing. The first contact and the second contact are electrically connected to the pins respectively. Wires can be externally connected through the leads, so that the first contact and the second contact can be connected to the circuit.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0011] 1. When electrical connection is not required in the present utility model, the extrusion sleeve can be pulled down to align the notch position with the limiting ball. At this time, the limiting ball can move left and right. As Figure 4 shown, at this time, the transmission block and the second contact can be in an automatic movement state, so that the transmission block can be pulled up to separate the first contact and the second contact. In this way, without deliberate human operation, as long as the limiting ball is stuck into the first limiting groove or the second limiting groove, the state of the second contact can be fixed, thereby preventing the possibility of misoperation, and effectively preventing accidental disconnection or accidental contact of the contacts.
[0012] 2. In the present utility model, the electrical connection is completed by elastic fixation with the second contact inserted into the first contact. The second contact of the present device is fixed by the limiting ball being stuck into the first limiting groove or the second limiting groove. After the second contact is inserted into the first contact, the limiting ball can be stuck into the second limiting groove, so as to fix the second contact, thereby effectively ensuring the stability of the elastic connection between the two contacts. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic diagram of the overall structure of an electrical safety switch structure of the present utility model;
[0014] Figure 2 is a cross-sectional view of the overall structure of an electrical safety switch structure of the present utility model;
[0015] Figure 3 is a front view of an electrical safety switch structure of the present utility model Figure 2 ;
[0016] Figure 4This is the downward view of the extrusion sleeve in the electrical safety switch structure of the present utility model.
[0017] In the figure: 1. Housing; 2. First contact; 3. Second contact; 4. Transmission block; 5. Through groove; 6. Limit ball; 7. First limit groove; 8. Second limit groove; 9. Extrusion sleeve; 10. Spring; 11. Notch; 12. Protruding block; 13. Pin. Specific embodiments
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] Please refer to Figures 1-4 , the present utility model provides a technical solution: an electrical safety switch structure, including a housing 1, a first contact 2 is arranged at the lower end inside the housing 1, a second contact 3 is arranged above the first contact 2 inside the housing 1, and a fixing mechanism for fixing the second contact 3 is arranged at the upper end inside the housing 1. The fixing mechanism includes a transmission block 4, a through groove 5, a limit ball 6, a first limit groove 7, a second limit groove 8, and an extrusion sleeve 9. The transmission block 4 is movably inserted in the middle of the inner side of the housing 1, and is fixedly connected between the lower end of the transmission block 4 and the second contact 3. A plurality of through grooves 5 are evenly opened around the surface of the housing 1, and the limit ball 6 is movably clamped inside the through groove 5. A first limit groove 7 is opened in the middle of the outer surface of the transmission block 4, and a second limit groove 8 is opened above the first limit groove 7 on the outer surface of the transmission block 4. The limit ball 6 is movably clamped inside the first limit groove, and an extrusion sleeve 9 is movably sleeved on the outside of the housing 1.
[0020] A spring 10 is sleeved on the outer surface of the housing 1 below the extrusion sleeve 9. The spring 10 can automatically push the extrusion sleeve 9 upward, thereby limiting the limit ball 6 and preventing the limit ball 6 from moving left and right and moving out of the first limit groove 7 or the second limit groove 8, so as to fix the positions of the transmission block 4 and the first contact 2.
[0021] A notch 11 is opened at the upper end of the inner side wall of the extrusion sleeve 9. When the notch 11 is aligned with the limit ball 6, the limit ball 6 is allowed to move left and right. As Figure 4 shown, at this time, the transmission block 4 and the second contact 3 can be in an automatic moving state, so that the second contact 3 can be allowed to contact the first contact 2 or the second contact 3 can be separated from the second contact 3.
[0022] A raised block 12 is fixedly arranged at the upper end of the transmission block 4. Through the raised block 12, it is convenient to insert and remove the transmission block 4 and the second contact 3 up and down.
[0023] The first contact 2 is made of elastic copper material. Through the first contact 2 made of elastic copper material, when the second contact 3 presses the first contact 2, the first contact 2 can open to both sides. After the second contact 3 is inserted into the first contact 2, under the elastic action of the first contact 2, the first contact 2 can closely adhere to the outer surface of the second contact 3, so as to achieve electrical connection on the outside.
[0024] Pin feet 13 are fixedly arranged on both sides of the lower end of the housing 1. The first contact 2 and the second contact 3 are respectively electrically connected to the pin feet 13. Wires can be used to connect external cables, so that the first contact 2 and the second contact 3 can be connected to a circuit.
[0025] Working principle: When using this device, the second contact 3 of this device is inserted into the first contact 2, and electrical connection is completed by elastic fixation. The second contact 3 of this device is fixed by being inserted into the first limit groove 7 or the second limit groove 8 through the limit ball 6. After the second contact 3 is inserted into the first contact 2, the limit ball 6 can be inserted into the second limit groove 8, so as to fix the second contact 3, thereby effectively ensuring the stability of the elastic connection between the two contacts.
[0026] When electrical connection is not required, the extrusion sleeve 9 can be pulled down to align the notch 11 with the limit ball 6. At this time, the limit ball 6 can move left and right. Figure 4 As shown in the figure, at this time, the transmission block 4 and the second contact 3 can be in an automatic movement state, so that the transmission block 4 can be pulled up, causing the first contact 2 and the second contact 3 to separate. In this way, without deliberate human operation, as long as the limit ball 6 is inserted into the first limit groove 7 or the second limit groove 8, the state of the second contact 3 can be fixed, thereby preventing the possibility of misoperation, and effectively preventing the contacts from accidentally disconnecting or accidentally contacting.
[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to this process, method, article or device.
[0028] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. An electrical safety switch structure, comprising a housing (1), characterized in that: At the lower end inside the housing (1), a first contact (2) is provided. Inside the housing (1), a second contact (3) is provided above the first contact (2). At the upper end inside the housing (1), a fixing mechanism for fixing the second contact (3) is provided. The fixing mechanism includes a transmission block (4), a through groove (5), a limiting ball (6), a first limiting groove (7), a second limiting groove (8), and an extrusion sleeve (9). The transmission block (4) is movably inserted through the middle of the inner side of the housing (1). A fixed connection is provided between the lower end of the transmission block (4) and the second contact (3). A plurality of through grooves (5) are evenly formed around the surface of the housing (1). The limiting ball (6) is movably engaged inside the through groove (5). A first limiting groove (7) is formed in the middle of the outer surface of the transmission block (4). A second limiting groove (8) is formed above the first limiting groove (7) on the outer surface of the transmission block (4). The limiting ball (6) is movably engaged inside the first limiting groove. The extrusion sleeve (9) is movably sleeved on the outside of the housing (1).
2. The electrical safety switch structure according to claim 1, characterized in that: A spring (10) is sleeved on the outside surface of the housing (1) below the extrusion sleeve (9).
3. An electrical safety switch structure according to claim 1, characterized in that: A notch (11) is formed at the upper end of the inner side wall of the extrusion sleeve (9).
4. An electrical safety switch structure according to claim 1, characterized in that: A raised block (12) is fixedly provided at the upper end of the transmission block (4).
5. An electrical safety switch structure according to claim 1, characterized in that: The first contact (2) is made of elastic copper material.
6. An electrical safety switch structure according to claim 1, characterized in that: Leads (13) are fixedly provided on both sides of the lower end of the housing (1). The first contact (2) and the second contact (3) are electrically connected to the leads (13) respectively.