CN111128586A

CN111128586A - Self-locking switch structure

Info

Publication number: CN111128586A
Application number: CN202010040746.0A
Authority: CN
Inventors: 盛黎明
Original assignee: Wenzhou Gangyuan Electronics Co ltd
Current assignee: Wenzhou Gangyuan Electronics Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-05-08
Anticipated expiration: 2040-01-15
Also published as: CN111128586B

Abstract

The invention discloses a self-locking switch structure which comprises a base, a terminal, a push handle, a reed, a spring and a crochet hook, wherein the terminal is positioned at the inner side of the base; one end of the spring is fixed with the inner cavity of the base, and the other end of the spring is fixed with the front end face of the push handle; the front end face of the push handle is provided with a clamping part matched with a crochet hook fixed in the inner cavity of the base. According to the self-locking switch structure, the terminal and the base are integrally formed by injection molding, the flatness of the two terminals is improved, the deformation of the terminals is reduced after heating due to the fact that the periphery of the terminal is sealed by glue, and meanwhile, the reed is riveted with the push handle and is in a double-contact design, so that the current resistance of the switch is improved.

Description

Self-locking switch structure

Technical Field

The invention relates to the technical field of self-locking switches, in particular to a self-locking switch structure.

Background

The existing self-locking switch terminal and bakelite plate are inserted in a clearance mode and then reversely riveted, a reed is inserted on the terminal, a push handle positioning groove is reversely buckled on the reed, when a push handle pushes, the reed is driven to slide on different terminals to realize circuit switching, and a spring is arranged in the middle of the push handle (outside a support) and fixed through a blocking piece to realize automatic resetting of the push handle. This kind of terminal and bottom plate (bakelite plate) clearance are to inserting the connected mode of riveting again, have 3 not coplane shortcomings of terminal, can generate heat after the switch through-flow, and each terminal can take place deformation, and the terminal dislocation can increase, leads to reed and terminal friction aggravation to switch life reduces. And the existing self-locking switch has the disadvantages of large quantity of parts, difficult quality control and difficult assembly process.

Disclosure of Invention

The invention aims to provide a self-locking switch structure, which aims to solve the problems in the prior art, achieves the aim of improving the current resistance of a switch by improving the structures of a terminal and a reed and reduces the difficulty of switch assembly.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a self-locking switch structure which comprises a base, a terminal, a push handle, a reed, a spring and a crochet hook, wherein the terminal is positioned at the inner side of the base, the front end of the push handle is positioned in an inner cavity of the base and is in sliding fit with the inner cavity of the base, and the reed corresponding to the terminal is arranged at the front end of the push handle; one end of the spring is fixed with the inner cavity of the base, and the other end of the spring is fixed with the front end face of the push handle; the front end face of the push handle is provided with a clamping part matched with a crochet hook fixed in the inner cavity of the base.

Preferably, the terminal and the base are formed by injection molding and are integrally arranged.

Preferably, the reed is connected with the front end of the push handle in a riveting mode, and the reed is arranged in a double-contact mode.

Preferably, the terminal is located on the bottom surface of the inner cavity of the base, the spring plate is arranged on the bottom surface of the front end of the push handle, and the spring plate pair arranged in the double-contact mode is inserted into the terminal.

Preferably, the rear part of the push handle is positioned outside the base, and the rear part of the push handle is provided with a keycap in a matching manner.

Preferably, a groove is formed at the joint of the front end and the rear part of the push handle, and the groove is used for realizing the up-and-down movement of the push handle relative to the base.

Preferably, the improved kitchen range hood further comprises an upper cover, the upper cover is connected with the base through hot riveting, and the crochet hook is fixed on the bottom surface of the upper cover and located in the inner cavity of the base.

Preferably, on the front end face of the push handle, the position of the clamping portion is higher than the position of the spring fixing point.

Compared with the prior art, the invention has the following technical effects:

according to the self-locking switch structure, the terminal and the base are integrally formed by injection molding, the flatness of the two terminals is improved, the deformation of the terminals is reduced after heating due to the fact that the periphery of the terminal is sealed by glue, and meanwhile, the reed is riveted with the push handle and is in a double-contact design, so that the current resistance of the switch is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a self-locking switch structure;

FIG. 2 is a diagram of a connection structure of a base and a terminal;

FIG. 3 is a schematic view of the connection of the push handle and the spring plate;

FIG. 4 is a schematic view of the connection between the upper cover and the base;

wherein, 1 terminal; 2, a base; 3, hooking a needle; 4, a spring; 5, a reed; 6, covering the cover; 7, a bracket; 8, pushing a handle; 9 key caps; 10 snap-in part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1-4, the present invention provides a self-locking switch structure, which includes a base 2, a terminal 1, a push handle 8, a spring 5, a spring 4 and a crochet hook 3, wherein the terminal 1 is located inside the base 2, the front end of the push handle 8 is located in the inner cavity of the base 2 and is in sliding fit with the inner cavity of the base 2, and the spring 5 corresponding to the terminal 1 is arranged at the front end of the push handle 8; one end of the spring 4 is fixed with the inner cavity of the base 2, and the other end is fixed with the front end face of the push handle 8; the front end surface of the push handle 8 is provided with a clamping part 10 matched with the crochet hook 3 fixed in the inner cavity of the base 2.

Further, the terminal 1 and the base 2 are formed by injection molding and are integrally arranged to form an integral part, and the base 2 is arranged on the bracket 7; the reed 5 is riveted with the front end of the push handle 8, and the reed 5 is arranged with double contacts. The flatness of the two terminals 1 is improved, the terminal 1 is sealed by glue at the periphery, deformation is reduced after heating, meanwhile, the reed 5 is riveted with the push handle 8, and the reed 5 is designed to be a double-contact, so that the current resistance of the switch is improved.

The self-locking switch structure further comprises an upper cover 6, the upper cover 6 is connected with the base 2 through hot riveting, the crochet hook 3 is fixed on the bottom surface of the upper cover 6 and is located in an inner cavity of the base 2, and the upper cover 6 is connected with the base 2 through hot riveting after the position of the crochet hook 3 in the base 2 is automatically assembled. The position of the clamping part 10 on the front end surface of the push handle 8 is higher than the position of the fixed point of the spring 4.

The rear part of the push handle 8 is positioned outside the base 2, the rear part of the push handle 8 is provided with a keycap 9 in a clamping way, and the push handle 8 is pushed to move forwards by pushing the keycap 9. The joint of the front end and the rear part of the push handle 8 is provided with a groove which is used for realizing the up-and-down movement of the push handle 8 relative to the base 2. The diameter of the joint of the front end and the rear part of the push handle 8 is smaller than the inner diameter of the opening on the base 2 due to the arrangement of the groove, so that when the push handle 8 moves forwards, the push handle 8 can move downwards relative to the base 2 at the same time, the spring 4 is compressed, and then the push handle 8 moves upwards to enable the clamping part 10 at the front end of the push handle 8 and the crochet hook 3 in the base 2 to be clamped and hooked mutually, so that the locking of the self-locking switch structure is realized; when the push handle 8 moves backwards, the push handle 8 can move upwards relative to the base 2, the clamping part 10 at the front end of the push handle 8 is separated from the crochet hook 3, then the push handle 8 moves forwards, downwards and backwards in sequence, the original state is returned under the restoring force action of the spring 4, and at the moment, the self-locking switch structure is in a loosened state.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims

1. A self-locking switch structure is characterized in that: the terminal is positioned on the inner side of the base, the front end of the push handle is positioned in the inner cavity of the base and is in sliding fit with the inner cavity of the base, and the reed corresponding to the terminal is arranged at the front end of the push handle; one end of the spring is fixed with the inner cavity of the base, and the other end of the spring is fixed with the front end face of the push handle; the front end face of the push handle is provided with a clamping part matched with a crochet hook fixed in the inner cavity of the base.

2. The self-locking switch structure of claim 1, wherein: the terminal and the base are formed by injection molding and are integrally arranged.

3. The self-locking switch structure of claim 2, wherein: the reed is connected with the front end of the push handle in a riveting mode, and the reed is arranged in a double-contact mode.

4. The self-locking switch structure of claim 3, wherein: the terminal is positioned on the bottom surface of the inner cavity of the base, the reed is arranged on the bottom surface of the front end of the push handle, and the reed arranged in a double-contact mode is inserted into the terminal.

5. The self-locking switch structure of claim 1, wherein: the rear portion of the push handle is located on the outer side of the base, and the keycap is installed on the rear portion of the push handle in a matched mode.

6. The self-locking switch structure of claim 5, wherein: the connecting part of the front end and the rear part of the push handle is provided with a groove which is used for realizing the up-and-down movement of the push handle relative to the base.

7. The self-locking switch structure of claim 1, wherein: the improved structure is characterized by further comprising an upper cover, the upper cover is connected with the base through hot riveting, and the crochet hook is fixed on the bottom surface of the upper cover and located in the inner cavity of the base.

8. The self-locking switch structure of claim 1, wherein: on the front end face of the push handle, the position of the clamping portion is higher than the position of the spring fixing point.