Rotary high-reliability button switch

Abstract

The utility model discloses a rotary high-reliability button switch, which comprises a base, a shell sleeved on the base, a button arranged in the shell in a sliding manner, a transmission frame arranged in the base in a sliding manner, a lower end of the button connected with an upper end of the transmission frame, and a lower end of the transmission frame connected with a pressure spring A; the end, away from the transmission frame, of the first compression spring is connected with the bottom end in the base, a conductive column is arranged at the lower end of the transmission frame, a conductive piece is arranged at the bottom end in the base, the conductive column and the conductive piece correspond to each other in the vertical direction, and a locking structure is jointly arranged in the shell and on the button in a matched mode. The locking device has the characteristic of reliable locking, enhances the environmental vibration and impact resistance of the switch, and improves the reliability of the switch at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic components, in particular to a rotary high-reliability push button switch. Background Art

[0002] A pushbutton switch is a switch that uses a button to push a transmission mechanism, connecting or disconnecting a moving contact and a stationary contact, thereby switching the circuit. A pushbutton switch is a simple, widely used master control device. In electrical automatic control circuits, it is used to manually issue control signals to control contactors, relays, electromagnetic starters, and other devices.

[0003] In traditional push button switches, external force acts on the button head, causing the button to move in the vertical direction. The locking mechanism inside the push button switch is mostly in the vertical plane. When strong vibration occurs due to the external environment, the locking mechanism inside the push button switch is vibrated and unlocked, which can easily lead to poor contact of the switch. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a rotary high-reliability push button switch.

[0005] The utility model is achieved through the following technical solutions.

[0006] The utility model provides a rotary high-reliability push button switch, comprising a base, a shell being sleeved on the base, a button being slidably arranged inside the shell, a transmission frame being slidably arranged inside the base, the lower end of the button being connected to the upper end of the transmission frame, the lower end of the transmission frame being connected to a compression spring A, the end of the compression spring A away from the transmission frame being connected to the bottom end of the base, a conductive column being arranged at the lower end of the transmission frame, a conductive member being arranged at the bottom end of the base, the conductive column and the conductive member corresponding to each other in the vertical direction, and a locking structure being cooperatively arranged inside the shell and on the button.

[0007] Preferably, the locking structure includes a locking step provided on the inner circumference of the housing, the end of the locking step away from the base being the inner ring, the end of the locking step close to the base being the outer ring, the locking step being respectively provided with a first card slot and a second card slot, both ends of the first card slot along the length direction being communicated with the inner ring of the locking step, and both ends of the second card slot along the length direction being communicated with the inner ring of the locking step, the depth of the first card slot being greater than the depth of the second card slot, and the first card slot and the second card slot being staggered;

[0008] The locking block is fixedly connected to the lower end surface of the button, and the locking block is arranged in the outer ring of the locking step. The length of the locking block is greater than the diameter of the inner ring of the locking step, and the first slot and the second slot are both adapted to the locking block.

[0009] Preferably, a clamping cylinder is fixedly connected to the upper end surface of the transmission frame, a clamping groove is provided on the lower end surface of the locking block, and the clamping cylinder is clearance-matched with the clamping groove.

[0010] Preferably, a guide groove is provided in the middle of the lower end of the transmission frame, a guide cylinder is fixedly connected to the middle of the bottom of the base, the open end of the guide groove is arranged opposite to the guide cylinder, one end of the compression spring A abuts against the bottom of the guide groove, and the other end is sleeved on the guide cylinder.

[0011] Preferably, a sliding groove is provided on the lower end surface of the transmission frame, and the conductive column is arranged in the sliding groove. The conductive column moves freely along the depth direction of the sliding groove, and the end of the conductive column away from the bottom of the sliding groove points to the conductive part, and a compression spring B is provided between the conductive column and the bottom of the sliding groove.

[0012] Preferably, an annular groove is provided on the outer peripheral side of the button, an inner sealing ring is provided in the annular groove, and the inner sealing ring is interference fit with the annular groove.

[0013] Preferably, the outer peripheral threaded sleeve of the shell is provided with a mounting nut, and a mounting block is further provided on the outside of the shell, and the mounting panel is placed between the mounting nut and the mounting block.

[0014] Preferably, an outer sealing ring is further sleeved on the outer periphery of the housing, and the outer sealing ring is placed between the mounting block and the mounting nut.

[0015] The beneficial effects of the utility model are as follows: in the initial state, the locking card is engaged in the first card slot, and a downward pressing force is applied to the button, the compression spring A is compressed, and after a certain stroke, the conductive member and the conductive column are in contact, the circuit is connected, and at the same time, the compression spring B is compressed, the conductive member and the conductive column are effectively in contact, and the circuit is connected; at the same time, the button is continued to be pressed, and the locking card is disengaged from the first card slot. By rotating the button, the locking card is aligned with the position of the second card slot, so that the transmission frame contacts the bottom surface of the base, and the compression spring A is further compressed. Then, the external force is removed, and the locking card is engaged into the second card slot by the force of the compression spring A itself, thereby locking the button and keeping the circuit open; when the button is pressed downward again, the locking card is disengaged from the second card slot, and the button is rotated so that the locking card is aligned with the first card slot. Similarly, the compression spring A pushes the locking card into the first card slot, the circuit is disconnected, and the switch is reset; the switch has the characteristics of reliable locking, the ability of the switch to resist environmental vibration and impact is enhanced, and the reliability of the switch is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 It is a side sectional structural schematic diagram of the utility model;

[0018] Explanation of the reference numerals: 1-button; 2-inner sealing ring; 3-housing; 4-outer sealing ring; 5-mounting nut; 6-transmission frame; 7-compression spring A; 8-base; 9-compression spring B; 10-conductive column; 11-conductive member; 12-locking step; 13-first slot; 14-second slot; 15-locking block; 16-clamping cylinder; 17-clamping groove; 18-guide groove; 19-guide cylinder; 20-sliding groove; 21-annular groove; 22-mounting block; 23-placement groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In the examples of this application, refer to Figure 1 , including a base 8, a shell 3 is sleeved on the base 8, the lower end of the shell 3 is fixedly connected to the base 8 by riveting, the outer peripheral thread of the shell 3 is sleeved with a mounting nut 5, which is convenient for the mounting nut 5 to rotate along the outer peripheral side thread of the shell 3, and a mounting block 22 is also integrally connected to the outside of the shell 3, so that the mounting panel is placed between the mounting nut 5 and the mounting block 22, and the mounting panel is fixed between the mounting nut 5 and the mounting block 22 by rotating the mounting nut 5.

[0022] An outer sealing ring 4 is also sleeved on the outer periphery of the housing 3, and a placement groove 23 is opened on the lower end surface of the mounting block 22, so that the outer sealing ring 4 is placed in the placement groove 23, and at the same time, a part of the outer sealing ring 4 overflows from the placement groove 23. When the mounting panel is fixed between the mounting block 22 and the mounting nut 5, the outer sealing ring 4 is pressed against the mounting panel, which has a sealing and shock-absorbing effect on the mounting panel.

[0023] In the examples of this application, refer to Figure 1A button 1 is slidingly arranged inside the shell 3, and an annular groove 21 is opened on the outer peripheral side of the button 1. An inner sealing ring 2 is arranged in the annular groove 21. The inner sealing ring 2 and the annular groove 21 are interference fit. When the button 1 is moving, the inner sealing ring 2 and the inside of the shell 3 are always in a tight state, and the button 1 always maintains a relatively sealed state during the movement in the shell 3.

[0024] In the examples of this application, refer to Figure 1 and Figure 2 , a locking structure is provided in cooperation with the interior of the shell 3 and the button 1; the locking structure includes a locking step 12 arranged on the inner circumference side of the shell 3, and the locking step 12 is placed in the middle position inside the shell 3, the end of the locking step 12 away from the base 8 is the inner circle, and the end of the locking step 12 close to the base 8 is the outer circle; a first card slot 13 and a second card slot 14 are respectively provided on the locking step 12, and both ends of the first card slot 13 along the length direction are connected to the inner circle of the locking step 12, and at the same time, both ends of the first card slot 13 along the length direction are symmetrically arranged with the center of the inner circle of the locking step 12 as the axis, and both ends of the second card slot 14 along the length direction are connected to the inner circle of the locking step 12, and both ends of the second card slot 14 along the length direction are symmetrically arranged with the center of the inner circle of the locking step 12 as the axis, the depth of the first card slot 13 is greater than the depth of the second card slot 14, and the first card slot 13 and the second card slot 14 are staggered;

[0025] The locking block 15 is fixedly connected to the lower end surface of the button 1. The locking block 15 is arranged in the outer ring of the locking step 12. The length of the locking block 15 is greater than the diameter of the inner ring of the locking step 12. By rotating the button 1, the locking block 15 can also rotate freely in the outer ring of the locking step 12. The first slot 13 and the second slot 14 are both engaged and adapted with the locking block 15. Pressing the button 1 and rotating the button 1 drive the locking block 15 to rotate along the horizontal plane, realizing the state conversion of the locking block 15 being engaged in the first slot 13 or being engaged in the second slot 14. In the initial state, the locking block 15 is engaged in the first slot 13, and the circuit is in the disconnected state.

[0026] The base 8 is provided with a transmission frame 6 for sliding inside. In order to firmly connect the button 1 with the upper end of the transmission frame 6 while preventing the transmission frame 6 from being affected when the button 1 rotates, in the embodiment of the present application, Figure 1 The upper end surface of the transmission frame 6 is fixedly connected with a clamping cylinder 16, and the lower end surface of the locking block 15 is provided with a clamping groove 17. The clamping cylinder 16 and the clamping groove 17 are clearance-matched. When the clamping cylinder 16 is clamped in the clamping groove 17, the transmission frame 6 does not rotate with the rotation of the button 1, and at the same time, the button 1 can also realize the transmission of the transmission frame 6.

[0027] Reference Figure 1 and Figure 2A guide groove 18 is provided in the middle of the lower end of the transmission frame 6, and a guide cylinder 19 is fixedly connected to the middle of the bottom of the base 8. The open end of the guide groove 18 is arranged opposite to the guide cylinder 19, and one end of the compression spring A 7 abuts against the bottom of the guide groove 18, and the other end is sleeved on the guide cylinder 19; it is convenient to guide the movement process of the transmission frame 6 in the base 8.

[0028] Reference Figure 1 and Figure 2 , a sliding groove 20 is provided on the lower end surface of the transmission frame 6, and there are two sliding grooves 20, and the two sliding grooves 20 are symmetrically arranged. A conductive column 10 is provided in the sliding groove 20, and the conductive column 10 is free to move along the depth direction of the sliding groove 20. Two conductive parts 11 are provided at the bottom end of the base 8. The ends of the two conductive columns 10 away from the bottom of the sliding groove 20 point to the two conductive parts 11 respectively, so that the two conductive columns 10 and the two conductive parts 11 correspond one to one in the vertical direction; a compression spring B 9 is provided between the conductive column 10 and the bottom of the sliding groove 20, so that one end of the compression spring B 9 is connected to the bottom of the sliding groove 20, and the other end is fixedly connected to the conductive column 10. When the conductive column 10 and the conductive part 11 are in contact, the compression spring B 9 has a buffering and protective effect on the conductive column 10 and the conductive part 11, thereby avoiding excessive friction between the conductive column 10 and the conductive part 11, thereby causing wear.

[0029] The working principle of this embodiment is as follows: in the initial state, the locking block 15 is clamped in the first slot 13, and a downward pressing force is applied to the button 1. The button 1 pushes the transmission frame 6 to move downward, and the compression spring A 7 is compressed. After a certain stroke, the conductive member 11 and the conductive column 10 are in contact, and the circuit is turned on. At the same time, the compression spring B 9 is compressed, so that the conductive member 11 and the conductive column 10 are in effective contact, and the conductive member 11 and the conductive column 10 are prevented from excessive friction and wear. At this time, the locking block 15 is disengaged from the first slot 13. By rotating the button 1, the locking block 15 is rotated in the horizontal direction to align the locking block 15 with the position of the second slot 14. At the same time, while continuing to press the button When the button 1 is pressed downward, the locking block 15 is disengaged from the second slot 14, and the button 1 is rotated so that the locking block 15 is aligned with the first slot 13. Similarly, the compression spring A 7 pushes the locking block 15 into the first slot 13, the circuit is disconnected, and the switch is reset. The switch has the characteristic of reliable locking, which enhances the switch's ability to resist environmental vibration and impact, and also improves the reliability of the switch.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A rotary high-reliability push button switch, characterized by: The invention comprises a base (8), a shell (3) is sleeved on the base (8), a button (1) is slidably arranged inside the shell (3), a transmission frame (6) is slidably arranged inside the base (8), the lower end of the button (1) is connected to the upper end of the transmission frame (6), the lower end of the transmission frame (6) is connected to a compression spring (7), one end of the compression spring (7) away from the transmission frame (6) is connected to the bottom end of the base (8), a conductive column (10) is arranged at the lower end of the transmission frame (6), a conductive member (11) is arranged at the bottom end of the base (8), the conductive column (10) and the conductive member (11) correspond to each other in the vertical direction, and a locking structure is cooperatively arranged inside the shell (3) and on the button (1).

2. The rotary high-reliability push button switch according to claim 1, characterized in that: The locking structure comprises a locking step (12) arranged on the inner circumference of the housing (3); the end of the locking step (12) away from the base (8) is an inner ring, and the end of the locking step (12) close to the base (8) is an outer ring; a first card slot (13) and a second card slot (14) are respectively provided on the locking step (12); both ends of the first card slot (13) along the length direction are communicated with the inner ring of the locking step (12); both ends of the second card slot (14) along the length direction are communicated with the inner ring of the locking step (12); the depth of the first card slot (13) is greater than the depth of the second card slot (14); the first card slot (13) and the second card slot (14) are staggered; The locking card block (15) is fixedly connected to the lower end surface of the button (1). The locking card block (15) is arranged in the outer ring of the locking step (12). The length of the locking card block (15) is greater than the diameter of the inner ring of the locking step (12). The first card slot (13) and the second card slot (14) are both engaged and adapted with the locking card block (15).

3. The rotary high-reliability push button switch according to claim 2, characterized in that: The upper end surface of the transmission frame (6) is fixedly connected with a clamping cylinder (16), the lower end surface of the locking block (15) is provided with a clamping groove (17), and the clamping cylinder (16) and the clamping groove (17) are clearance-matched.

4. The rotary high-reliability push button switch according to claim 1, wherein: A guide groove (18) is provided in the middle of the lower end of the transmission frame (6), and a guide cylinder (19) is fixedly connected to the middle of the bottom of the base (8). The open end of the guide groove (18) and the guide cylinder (19) are arranged opposite to each other. One end of the compression spring (7) abuts against the bottom of the guide groove (18), and the other end is sleeved on the guide cylinder (19).

5. The rotary high-reliability push button switch according to claim 1, characterized in that: The lower end surface of the transmission frame (6) is provided with a sliding groove (20), and the conductive column (10) is arranged in the sliding groove (20). The conductive column (10) moves freely along the depth direction of the sliding groove (20), and the end of the conductive column (10) away from the bottom of the sliding groove (20) points to the conductive member (11). A compression spring B (9) is provided between the conductive column (10) and the bottom of the sliding groove (20).

6. The rotary high-reliability push button switch according to claim 1, characterized in that: An annular groove (21) is provided on the outer peripheral side of the button (1), an inner sealing ring (2) is provided in the annular groove (21), and the inner sealing ring (2) and the annular groove (21) are interference-fitted.

7. The rotary high-reliability push button switch according to claim 1, characterized in that: The outer peripheral threaded sleeve of the housing (3) is provided with a mounting nut (5), and the outside of the housing (3) is also provided with a mounting block (22), and the mounting panel is placed between the mounting nut (5) and the mounting block (22).

8. The rotary high-reliability push button switch according to claim 7, characterized in that: An outer sealing ring (4) is also sleeved on the outer periphery of the housing (3), and the outer sealing ring (4) is placed between the mounting block (22) and the mounting nut (5).

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