Button switch

Abstract

The utility model relates to a button switch, which comprises a base, a static contact piece connected on the base, a button handle movably connected in the base, a button arranged on the button handle and a housing clamped on the base, two ends of the inner wall of the housing extend downwards to form clamping blocks, and two ends of the base are provided with clamping grooves correspondingly matched with the clamping blocks. The button handle comprises a clamping part, guide protruding blocks are arranged on the two sides of the clamping part, one end of the button is provided with a pressing part extending out of the cover shell, the other end of the button is provided with a containing cavity for containing the clamping part of the button handle, and the two ends of the containing cavity are provided with guide holes matched with the guide protruding blocks. The stability and the reliability of the button switch in the normal use process are guaranteed, the guide protruding blocks are arranged on the two sides of the clamping part of the button handle and matched with the guide holes in the two ends of the button containing cavity, and the stability and the accuracy of the button handle in the action process are guaranteed.

Description

Technical Field

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

[0002] In electronic and electrical equipment, push button switches are a common control element, widely used in various devices to realize the on-off control of circuits. Traditional push button switches usually include components such as a base, a static contact piece, a button handle, and a cover. These components are combined together through different connection methods to realize the on-off operation of the circuit. However, traditional push button switches have defects in design and manufacturing, such as complex structure, poor stability, and poor safety. These problems limit the performance and application scope of push button switches to a certain extent. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a push button switch with simple structure, stable and reliable performance and high safety.

[0004] In order to achieve the above purpose, the utility model adopts such a push button switch, including a base, a static contact piece connected to the base, a button handle movably connected in the base, a button arranged on the button handle, and a cover shell mounted on the base, wherein both ends of the inner wall of the cover shell extend downward to form a card block, both ends of the base are provided with a card slot corresponding to the card block, the card block is mounted in the card slot, the button handle includes a card engaging portion and an action portion, both sides of the card engaging portion are provided with guide protrusions, one end of the button has a pressing portion extending outside the cover shell, the other end of the button has a receiving cavity for accommodating the card engaging portion of the button handle, both ends of the receiving cavity are provided with guide holes matching with the guide protrusions, and the guide protrusions are engaged in the guide holes.

[0005] Compared with the prior art, the beneficial effect of the above structure is that the stability and reliability of the button switch during normal use are guaranteed through the close fit between the card block and the card slot, and guide protrusions are provided on both sides of the card engaging portion of the button handle, which cooperate with the guide holes at both ends of the button accommodating cavity to ensure the stability and accuracy of the button handle during operation.

[0006] The utility model is further configured such that the action part is downwardly formed with a travel cavity and a bottom groove, side openings are formed on both sides of the travel cavity, and a limit block is formed on the side opening. A compression spring and a conductive column are arranged in the travel cavity, and the conductive column passes through the side opening and is arranged on the limit block. One end of the compression spring presses against the travel cavity, and the other end presses against the conductive column. The bottom groove is provided with two and is symmetrically arranged at both ends of the travel cavity. The base is provided with a reset spring at the position corresponding to the bottom groove, and one end of the reset spring presses against the base, and the other end presses against the bottom groove. By arranging side openings and limit blocks on both sides of the travel cavity, combined with the effects of the compression spring and the conductive column, it can be ensured that the stroke of the button during the pressing and releasing process is precisely controllable, and the bottom groove is combined with the reset spring on the base to realize the rapid reset function of the button handle.

[0007] The utility model is further configured that two static contact pieces are provided, one end of the two static contact pieces has a wiring portion extending outside the base, and the other end of the two static contact pieces has a contact portion matched with the conductive column, and the contact portion is provided with an arc-shaped groove matched with the conductive column, and when the conductive column is connected with the two static contact pieces, the conductive column fits in the arc-shaped groove. By providing two static contact pieces and designing an arc-shaped groove on their contact portion, the conductive column can fit tightly in these grooves when connected, thereby increasing the contact area between the conductive column and the static contact piece, thereby improving the stability and reliability of the electrical connection.

[0008] The utility model is further arranged that the connection between the base and the cover shell is also sleeved with a fastening sleeve. By being sleeved on the clamping connection, the fastening sleeve can effectively prevent the loosening or misalignment between the clamping block and the clamping slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a stereogram of an embodiment of the utility model.

[0010] Figure 2 It is an exploded schematic diagram of an embodiment of the utility model.

[0011] Figure 3 It is a schematic diagram of the button handle structure of an embodiment of the utility model.

[0012] Figure 4 It is a cross-sectional view of an embodiment of the utility model. DETAILED DESCRIPTION

[0013] like Figure 1-Figure 4As shown, an embodiment of the utility model provides a push button switch, including a base 1, a stationary contact piece 2 connected to the base 1, a button handle 3 movably connected to the base 1, a button 4 arranged on the button handle 3, and a cover 5 mounted on the base 1, wherein both ends of the inner wall of the cover 5 extend downward to form a card block 51, and both ends of the base 1 are provided with a card slot 11 corresponding to the card block 51, and the two card blocks 51 are respectively mounted in the corresponding card slot 11, and the connection between the base 1 and the cover 5 is also sleeved A fastening sleeve 6 is provided, the button handle 3 includes a clamping portion 31 and an action portion 32, both sides of the clamping portion 31 are provided with guide protrusions 311, one end of the button 4 has a pressing portion 41 extending outside the cover 5, and the other end of the button 4 has a receiving cavity 42 for accommodating the clamping portion 31 of the button handle 3, and both ends of the accommodating cavity 42 are provided with guide holes 421 that match the guide protrusions 311, and the two guide protrusions 311 are respectively clamped in the corresponding guide holes 421, and the action portion 32 is downwardly formed with travel cavities 331 and 332, respectively. 3 and bottom groove 34, side openings 35 are formed on both sides of the stroke cavity 33, and two corresponding limit blocks 36 are formed on the side openings 35. A compression spring 331 and a conductive column 332 are arranged in the stroke cavity 33. The conductive column 332 passes through the side opening 35 and is arranged on the limit block 36. One end of the compression spring 331 presses in the stroke cavity 33, and the other end presses on the conductive column 332. The bottom groove 34 is provided with two and is symmetrically arranged at both ends of the stroke cavity 33. The base 1 corresponds to the position of the bottom groove 34. A reset spring 12 is provided, one end of the reset spring 12 is pressed against the base 1, and the other end is pressed against the bottom groove 34. Two static contact pieces 2 are provided, one end of the two static contact pieces 2 has a wiring portion 21 extending outside the base 1, and the other end of the two static contact pieces 2 has a contact portion 22 matched with the conductive column 332. The contact portion 22 is provided with an arc-shaped groove 221 matched with the conductive column 332. When the conductive column 332 is connected to the two static contact pieces 2, the conductive column 332 fits in the arc-shaped groove 221.

[0014] Of course, in addition to the above-mentioned embodiments, the utility model may also have many other embodiments. Without departing from the essential technical solution content of the utility model, technical personnel familiar with the field may make various corresponding changes and deformations according to the utility model, and these changes or deformations are equivalent to the technical solution in this patent. Then these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the utility model, and the creation of the utility model is in line with the actual R&D capabilities and resource conditions of the applicant and the utility model creator.

Claims

1. A push button switch, characterized in that: It includes a base, a static contact piece connected to the base, a button handle movably connected to the base, a button arranged on the button handle, and a cover shell clamped on the base, wherein both ends of the inner wall of the cover shell extend downward to form a clamping block, both ends of the base are provided with a clamping groove corresponding to the clamping block, the clamping block is clamped in the clamping groove, the button handle includes a clamping part and an action part, both sides of the clamping part are provided with guide protrusions, one end of the button has a pressing part extending outside the cover shell, the other end of the button has a accommodating cavity for accommodating the clamping part of the button handle, both ends of the accommodating cavity are provided with guide holes matching with the guide protrusions, and the guide protrusions are clamped in the guide holes.

2. The push button switch according to claim 1, characterized in that: The action part is downwardly formed with a stroke cavity and a bottom groove, side openings are formed on both sides of the stroke cavity, and a limit block is formed on the side opening. A compression spring and a conductive column are provided in the stroke cavity, and the conductive column passes through the side opening and is arranged on the limit block. One end of the compression spring presses against the stroke cavity, and the other end presses against the conductive column. Two bottom grooves are provided and are symmetrically arranged at both ends of the stroke cavity. A return spring is provided on the base corresponding to the position of the bottom groove, and one end of the return spring presses against the base, and the other end presses against the bottom groove.

3. The push button switch according to claim 2, characterized in that: There are two static contact pieces, one end of which has a wiring portion extending outside the base, and the other end of which has a contact portion that matches the conductive column. The contact portion is provided with an arc-shaped groove that matches the conductive column. When the conductive column is connected to the two static contact pieces, the conductive column fits in the arc-shaped groove.

4. The push button switch according to claim 1, 2 or 3, characterized in that: A fastening sleeve is also provided at the connection point where the base and the cover shell are clamped together.

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