Metal button switch

Abstract

The utility model discloses a metal button switch, which comprises a shell, and a button, a contact seat, a moving contact and a spring which are arranged in the shell, the shell comprises a metal tube shell, a lining and a base, the button is connected with the upper end of the contact seat, and the moving contact is arranged on the contact seat; the contact seat is limited and installed in the bushing through a stop structure and can move up and down, a self-locking assembly is installed in the bushing, a peach core structure is arranged on the side wall of the contact seat, the self-locking assembly comprises a frame and a crochet hook, an elastic sheet is integrally arranged on the frame, and the elastic sheet abuts against the crochet hook, so that the crochet hook is matched with the peach core structure; a concave cavity is formed in the inner side wall of the lining, limiting inserting grooves are formed in the two opposite side walls of the concave cavity, the upper ends of the limiting inserting grooves are closed, the lower ends of the limiting inserting grooves are open, the two side frames on the frame are inserted into the limiting inserting grooves through the corresponding openings, and the base is clamped to the bottom of the lining and limits the bottom of the frame in a resisting mode. The metal button switch is reasonable in structural arrangement, convenient to assemble, stable in use performance and good in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of electric switches, in particular to a metal push-button switch. Background Art

[0002] The metal push-button switch is a control switch widely used in various industrial and commercial equipment, and is widely adopted due to its characteristics such as a solid structure, durability, and beautiful appearance. There are two main types of metal push-button switches: the self-locking switch and the self-resetting switch. The self-locking switch is characterized in that after the button is pressed, the switch will automatically lock in this position, and the button will not automatically return, and it needs to be pressed again to switch the switch state. The self-resetting switch is characterized in that after the button is pressed, the button will automatically return to the initial state when released.

[0003] In the existing metal push-button switch, there is a problem that the installation structure of the self-locking component is unreasonable, resulting in cumbersome operation when the self-locking component is installed in the housing, which is not conducive to improving the assembly production efficiency. Summary of the Utility Model

[0004] In view of this, the utility model provides a metal push-button switch that facilitates the installation of the self-locking component.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] The utility model provides a metal push-button switch, which includes a housing, and a button, a contact seat, a moving contact, and a spring arranged in the housing; the housing includes a metal tube housing that is vertically penetrated inside, a bushing sleeved at the bottom inside the metal tube housing, and a base fixed at the bottom of the bushing. The button is connected to the upper end of the contact seat, the moving contact is installed on the contact seat, and a conductive pin is fixed on the base; the contact seat is limited and installed in the bushing through a stop structure and can move up and down. The spring provides an upward elastic force for the contact seat. A self-locking component is installed in the bushing. A core structure is arranged on the side wall of the contact seat. The self-locking component includes a rectangular frame and a hook needle hooked and installed on the frame. A spring piece is integrally arranged on the frame, and the spring piece abuts against the hook needle so that the hook needle is kept in cooperation with the core structure; a concave cavity is arranged on the inner side wall of the bushing along the vertical direction. Limiting slots are arranged on two opposite side walls of the concave cavity. The limiting slots are closed at the upper end and open at the lower end. Two side frames on the frame are inserted into the limiting slots from the corresponding openings, and the base is clamped to the bottom of the bushing and resists and limits the frame.

[0007] In some embodiments, the bushing is provided with a side plate portion extending downward. A clamping hole is arranged on the side plate portion. A groove portion for the side plate portion to extend into is arranged on the side wall of the base, and a clamping block that is clamped and matched with the clamping hole is arranged on the inner wall of the groove portion.

[0008] In some embodiments, the card hole is provided on the inner wall of the groove portion, and the card block is provided on the side plate portion.

[0009] In some embodiments, the lower end of the button is snap-connected to the upper end of the contact seat.

[0010] In some embodiments, a limiting sliding groove is provided on the inner wall of the bushing along the up-down direction, and a limiting block that is slidably matched with the limiting sliding groove is provided on the side portion of the contact seat.

[0011] In some embodiments, the stop structure includes a stop platform provided at the upper end inside the limiting sliding groove and a stop block provided on the limiting block. The contact seat is restricted inside the bushing by the stop block resisting against the stop platform.

[0012] In some embodiments, the spring is a spiral compression spring arranged along the up-down direction, and its upper and lower ends are respectively connected to the contact seat and the bushing; a positioning post or a positioning groove sleeved with the lower end of the spiral compression spring is provided at the inner bottom of the bushing.

[0013] In some embodiments, a step is formed on the outer side wall of the bushing, and the corresponding position at the lower edge of the metal tube shell is riveted and deformed to be buckled with the step.

[0014] In some embodiments, a downwardly concave accommodation groove is provided on the upper part of the base, a circuit board is provided in the accommodation groove, an LED lamp bead is provided above the circuit board, pins electrically connected to the LED lamp bead are fixed on the circuit board, and the pins extend out from the base;

[0015] The bushing is made of a light-transmitting material.

[0016] In some embodiments, an inlay block is embedded on the contact seat, and the core structure is arranged on the inlay block.

[0017] The positive effects of the present utility model are as follows: In the present utility model, the structure of the metal push-button switch is optimized to realize the rapid and reliable installation of the self-locking component; specifically, a concave cavity is provided on the inner side wall of the bushing along the up-down direction, and the concave cavity provides sufficient installation space for the self-locking component. Limiting slots are provided on two opposite side walls of the concave cavity. The limiting slots are closed at the upper end and open at the lower end. During assembly, the two side frames on the frame are inserted into the limiting slots from the corresponding openings to limit the frame. After the base is snap-connected to the bottom of the bushing, it abuts against the bottom of the frame, thereby effectively limiting the frame, keeping the side frames in effective cooperation with the limiting slots, realizing the rapid and effective installation of the self-locking component, and ensuring the use performance of the switch. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Is a perspective view of the metal push-button switch in the present invention;

[0020] Figure 2 Is Figure 1 The top view of the shown metal push-button switch;

[0021] Figure 3 Is along Figure 2 The cross-sectional view taken along the A-A line in (after rotating 90° clockwise);

[0022] Figure 4 Is along Figure 2 The cross-sectional view taken along the B-B line in;

[0023] Figure 5 Is the exploded view of the metal push-button switch in the present invention;

[0024] Figure 6 Is the structural schematic diagram of the bushing when viewed from the bottom in the present invention.

[0025] The reference numerals shown in the figure: 1 - housing; 11 - metal shell; 12 - bushing; 121 - limiting chute; 122 - retaining platform; 123 - step; 13 - base; 131 - groove part; 132 - clamping block; 133 - accommodating groove; 14 - conductive pin; 15 - concave cavity; 16 - limiting slot; 17 - side plate part; 171 - clamping hole; 2 - button; 3 - contact seat; 30 - inlay block; 31 - peach core structure; 32 - stop block; 33 - limiting block; 4 - moving contact; 5 - frame; 50 - elastic piece; 51 - side frame; 6 - crochet needle; 7 - circuit board; 71 - LED lamp bead; 72 - pin. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly. In the present utility model, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0029] In this embodiment, the structure of the metal push-button switch is as Figures 1 to 6 shown, which includes a housing 1, and a button 2, a contact seat 3, a moving contact 4 and a spring (not shown in the figure) arranged inside the housing 1; the housing 1 includes a metal tube shell 11 that is vertically penetrated inside, a bushing 12 sleeved at the bottom inside the metal tube shell 11, and a base 13 fixed at the bottom of the bushing 12. The button 2 is connected to the upper end of the contact seat 3, the moving contact 4 is installed on the contact seat 3, and a conductive pin 14 is fixed on the base 13. When this metal push-button switch is in use, by pressing the button 2 downward, the contact seat 3 moves downward, and when the moving contact 4 contacts the conductive pin 14, the circuit is turned on; when the moving contact 4 is separated from the conductive pin 14, the circuit is cut off.

[0030] For the convenience of assembly, the contact seat 3 is limited and installed inside the bushing 12 through a stop structure, and the contact seat 3 can move up and down inside the bushing 12. The spring provides an upward elastic force for the contact seat 3. A self-locking assembly is installed inside the bushing 12. A peach core structure 31 is provided on the side wall of the contact seat 3. The self-locking assembly includes a rectangular frame 5 and a hook needle 6 hook-mounted on the frame 5. An elastic piece 50 is integrally provided on the frame 5, and the elastic piece 50 abuts against the hook needle 6 to keep the hook needle 6 in cooperation with the peach core structure 31, realizing the self-locking of the contact seat 3. The peach core structure is a common structure in self-locking switches, usually including a peach core block and a self-locking groove surrounding the peach core block. The hook part of the hook needle 6 extends into the self-locking groove. In this embodiment, the specific structure of the peach core structure will not be elaborated.

[0031] In order to quickly and reliably install the self-locking component inside the bushing 12, a cavity 15 is provided on the inner side wall of the bushing 12 and arranged in the up and down direction. The existence of this cavity provides sufficient installation space for the self-locking component. On the two opposite side walls of the cavity 15, limit slots 16 are provided. The limit slots 16 are closed at the upper end and open at the lower end. During assembly, the two side frames 51 on the frame 5 are inserted into the limit slots 16 from the corresponding openings, thereby limiting the frame 5. The base 13 is snap-connected to the bottom of the bushing 12 and resists and limits the frame 5. By effectively limiting the frame 5 through the base 13, the side frames 51 are kept in effective cooperation with the limit slots 16, realizing the quick and effective installation of the self-locking component and ensuring the use performance of the switch.

[0032] As Figure 1 and Figure 5 shown, the bushing 12 is provided with a side plate portion 17 extending downward. A clamping hole 171 is provided on the side plate portion 17. A groove portion 131 for the side plate portion 17 to extend into is provided on the side wall of the base 13. On the inner wall of the groove portion 131, a clamping block 132 is provided which is in clamping fit with the clamping hole 171. By the cooperation of the clamping block 132 and the clamping hole 171, the bushing 12 and the base 13 are fixedly connected. As a deformed implementation scheme, in actual operation, the clamping hole 171 can also be provided on the inner wall of the groove portion 131, and correspondingly, the clamping block 132 is provided on the side plate portion 17.

[0033] The lower end of the button 2 is clamped and connected to the upper end of the contact seat 3, so that the button 2 is connected to the contact seat 3, which is convenient for assembly and can improve the structural stability.

[0034] In some embodiments, a limit sliding groove 121 is provided on the inner wall of the bushing 12 and arranged in the up and down direction. The side of the contact seat 3 has a limit block 33 which is in sliding fit with the limit sliding groove 121. Through the cooperation of the limit block 33 and the limit sliding groove 121, the contact seat 3 can be guided and limited in its movement. Further, the stop structure includes a stop platform 122 provided at the upper end inside the limit sliding groove 121 and a stop block 32 provided on the limit block 33. The contact seat 3 is restricted inside the bushing 12 by the stop block 32 resisting against the stop platform 122.

[0035] In some embodiments, in order to facilitate the positioning and installation of the spring, it is preferably set that the spring is a spiral compression spring arranged in the up and down direction, and its upper and lower ends are respectively connected to the contact seat 3 and the bushing 12. A positioning post or a positioning groove for sleeving the lower end of the spiral compression spring is provided at the inner bottom of the bushing 12. During the assembly of the product, the spiral compression spring can be first placed inside the bushing 12, and the lower end of the spiral compression spring is positioned through the positioning post or the positioning groove. Then, the contact seat 3 is pressed into the bushing 12 from top to bottom, and the corresponding part of the contact seat 3 presses the upper end of the spiral compression spring.

[0036] Combined withFigure 4 and Figure 5 As shown in Figure 5 , for the convenience of assembling the metal push-button switch, a step 123 is formed on the outer side wall of the bushing 12, and the corresponding position at the lower edge of the metal shell 11 is riveted and deformed to engage with the step 123. By using the insertion of the bushing 12 and the design of the step 123, and through riveting deformation, a firm connection between the metal shell 11 and the bushing 12 is ensured.

[0037] As Figures 3 to 5 shown in Figures 3 to 5 , in order to add a lighting indication effect to the metal push-button switch, a downwardly concave receiving groove 133 is provided in the upper part of the base 13. A circuit board 7 is provided in the receiving groove 133. An LED lamp bead 71 is provided above the circuit board 7. A lead 72 electrically connected to the LED lamp bead 71 is fixed on the circuit board 7, and the lead 72 extends out of the base 13. After the lead 72 is connected to an external power supply circuit, the LED lamp bead 71 emits light and penetrates from the upper end of the housing 1. In order to enhance the light transmission effect, the bushing 12 is made of a light-transmitting material (such as transparent PC material).

[0038] In the existing self-locking push-button switch, the peach core structure 31 is directly integrally injection-molded with the contact seat 3. The mold structure is very complex, the mold design is difficult, and the material is limited. In this embodiment, an insert block 30 is embedded in the contact seat 3. The peach core structure 31 is provided on the insert block 30. The insert block 30 is fixed on the contact seat 3 by an assembly method. This can simplify the injection mold structure. Compared with direct injection molding, the injection mold design is more simplified. Moreover, it allows the peach core structure 31 to be made of a plastic material different from that of the contact seat 3, thus being more suitable for the material of the peach core structure.

[0039] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A metal push-button switch, comprising a housing (1), and a button (2), a contact seat (3), a moving contact (4) and a spring arranged inside the housing (1); The housing (1) includes a metal tube shell (11) that is vertically penetrated inside, a bushing (12) sleeved at the inner bottom of the metal tube shell (11), and a base (13) fixed to the bottom of the bushing (12). The button (2) is connected to the upper end of the contact seat (3). The moving contact (4) is installed on the contact seat (3). A conductive pin (14) is fixed on the base (13); It is characterized in that The contact seat (3) is limited and installed in the bushing (12) through a stop structure and can move up and down. The spring provides an upward elastic force for the contact seat (3). A self-locking component is installed inside the bushing (12). A peach core structure (31) is provided on the side wall of the contact seat (3). The self-locking component includes a rectangular frame (5) and a hook needle (6) hooked and installed on the frame (5). An elastic piece (50) is integrally provided on the frame (5). The elastic piece (50) abuts against the hook needle (6) so that the hook needle (6) is kept in cooperation with the peach core structure (31); A cavity (15) arranged in the vertical direction is provided on the inner side wall of the bushing (12). Limiting slots (16) are provided on two opposite side walls of the cavity (15). The limiting slots (16) are closed at the upper end and open at the lower end. Two side frames (51) on the frame (5) are inserted into the limiting slots (16) from the corresponding openings. The base (13) is clamped to the bottom of the bushing (12) and resists and limits the frame (5).

2. The metal push-button switch according to claim 1, characterized in that The bushing (12) is provided with a side plate portion (17) extending downward. A clamping hole (171) is provided on the side plate portion (17). A groove portion (131) for the side plate portion (17) to extend into is provided on the side wall of the base (13). A clamping block (132) that is clamped and matched with the clamping hole (171) is provided on the inner wall of the groove portion (131).

3. The metal push-button switch according to claim 2, wherein, The clamping hole (171) is arranged on the inner wall of the groove portion (131), and the clamping block (132) is arranged on the side plate portion (17).

4. The metal push-button switch according to claim 1, characterized in that, The lower end of the button (2) is clamped and connected to the upper end of the contact seat (3).

5. The metal push-button switch according to claim 1, characterized in that, A limiting sliding groove (121) arranged in the vertical direction is provided on the inner wall of the bushing (12). A limiting block (33) that is slidably matched with the limiting sliding groove (121) is provided on the side of the contact seat (3).

6. The metal push-button switch according to claim 5, characterized in that, The stop structure includes a stop platform (122) arranged at the upper end inside the limiting sliding groove (121) and a stop block (32) arranged on the limiting block (33). The contact seat (3) is limited inside the bushing (12) by the stop block (32) resisting against the stop platform (122).

7. The metal push-button switch according to claim 1, characterized in that, The spring is a spiral compression spring arranged in the vertical direction, and its upper and lower ends are respectively connected to the contact seat (3) and the bushing (12); A positioning column or a positioning groove sleeved with the lower end of the spiral compression spring is provided at the inner bottom of the bushing (12).

8. The metal push-button switch according to claim 1, characterized in that A step (123) is formed on the outer side wall of the bushing (12). The lower end edge of the metal tube shell (11) is riveted and deformed at the corresponding position to be buckled with the step (123).

9. The metal push-button switch according to claim 1, characterized in that, The upper part of the base (13) is provided with a downwardly concave accommodation groove (133). A circuit board (7) is arranged in the accommodation groove (133). An LED lamp bead (71) is arranged above the circuit board (7). A pin (72) electrically connected to the LED lamp bead (71) is fixed on the circuit board (7), and the pin (72) extends out of the base (13). The bushing (12) is made of a light-transmitting material.

10. The metal push-button switch according to claim 1, characterized in that, An insert block (30) is embedded on the contact head seat (3), and the core structure (31) is arranged on the insert block (30).

Images