A push button switch structure with self-resetting function

Abstract

The utility model discloses a button switch structure with self-resetting function relates to button switch structure technical field, the utility model discloses a button, sleeve, reset subassembly, switch subassembly and base, the bottom of button is fixedly equipped with the limit ring, and the bottom of limit ring is connected with press sleeve, and reset subassembly includes reset spring and spring lock position cylinder, and switch subassembly includes reset contact piece module, cycle intermittent press contact piece module and mounting column, and reset contact piece module is in -embedded installation in mounting column, and cycle intermittent press contact piece module is above reset contact piece module, and press sleeve is installed with the touch module of control cycle intermittent press contact piece module work in. The utility model discloses through repeatedly driving cycle intermittent press contact piece module to press or separate reset contact piece module, realizes reset contact piece module and connects or disconnects switch, has solved the reset spring reset of current not good, and the problem such as the joint limit ring number of times more can not realize the joint effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of push button switch structure, and in particular relates to a push button switch structure with self-reset function. Background Technology

[0002] A push-button switch is a switch that uses a button to actuate a transmission mechanism, causing the moving contact to connect or disconnect with the stationary contact, thus switching the circuit. Push-button switches are simple in structure and widely used control electrical appliances. In electrical automatic control circuits, they are used to manually send control signals to control contactors, relays, electromagnetic starters, etc. However, existing push-button switches require repeatedly using a locking rod to engage the limit ring to lock the contact rod against the pressure plate. That is, pressing the contact rod once depresses the pressure plate, and pressing it again causes the contact rod to spring back, thus repeatedly opening and closing. The return spring's reset effect is unsatisfactory; after the locking rod repeatedly engages the limit ring, it may fail to engage properly or become misaligned, failing to achieve the opening and closing function. Utility Model Content

[0003] The purpose of this utility model is to provide a push button switch structure with a self-resetting function. By repeatedly driving the intermittent pressing of the contact module, the reset contact module is pressed or released, so as to realize the switch on or off by the reset contact module. The reset spring is always in the reset state, and the reset effect will not be weakened. This solves the problems of poor reset of existing reset springs and the inability to achieve the locking effect after many times of locking the limit ring.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model discloses a push-button switch structure with a self-resetting function, comprising a button, a sleeve, a reset assembly, a switch assembly, and a base. A limiting ring is fixedly provided at the bottom of the button, and a pressing sleeve is connected to the bottom of the limiting ring. The reset assembly includes a reset spring and a spring locking sleeve. The button is inserted upwards from the bottom of the sleeve, with the limiting ring abutting against the top of the sleeve. A spring gap is left between the inner wall of the sleeve and the pressing sleeve. The reset spring is sleeved outside the pressing sleeve and inserted into the spring gap. The threaded portion of the spring locking sleeve is screwed into the bottom of the sleeve and abuts against the bottom end of the reset spring. The switch assembly includes a reset contact module, a cyclic intermittent pressing contact module, and a mounting post. The reset contact module is embedded in the mounting post, and the cyclic intermittent pressing contact module is located above the reset contact module. The mounting post is fixed to the bottom of the base, and the top of the base is fixedly connected to the bottom of the spring locking sleeve. A touch module for controlling the cyclic intermittent pressing contact module is installed inside the pressing sleeve.

[0005] The present invention is further configured such that the mounting post has a square notch, a pressure plate insertion post is provided in the middle of the square notch, two connecting plate insertion posts are symmetrically provided on both sides of the pressure plate insertion post, the pressure plate insertion post is covered with a first spring and the bottom end of the first spring is fixed to the bottom of the square notch, the connecting plate insertion post is covered with a second spring and the bottom end of the second spring is fixed to the bottom of the square notch, and the height of the pressure plate insertion post is greater than the height of the connecting plate insertion post; The reset contact module includes a pressing contact and two convex contact contacts. The protruding part of the convex contact contacts faces outward and the non-protruding part is movably sleeved on the contact post. The middle position of the pressing contact is sleeved on the pressure post, and the pressing contact is stuck in the square recess.

[0006] The present invention is further configured such that the intermittent pressing contact module includes a gear shaft, a one-way self-locking component, and a gear pressing disc. The gear pressing disc has four protruding gears evenly distributed around its circumference, and an intermittent notch is provided between adjacent protruding gears. The bottom width of the protruding gear is equal to the width of the intermittent notch. The gear shaft includes a shaft and an eight-tooth gear disc. One end of the shaft is fixed to the center position of one side of the eight-tooth gear disc. The other ends of two shafts are symmetrically fixed to the two sides of the gear pressing disc. A one-way self-locking component is sleeved on the shaft. The mounting column has multiple sleeve plates on its top wall, and the sleeve plates are used to cover the shaft and the one-way self-locking component. The shaft can rotate inside the sleeve plates, and the gear pressing plate is located above the pressing contact plate.

[0007] The present invention is further configured such that the one-way self-locking component includes an outer locking cylinder, a locking block, and a toothed convex band. The shaft is provided with a toothed convex band, the outer locking cylinder is sleeved on the shaft and the two are coaxial, the toothed convex band does not contact the inner wall of the outer locking cylinder, the locking block is rotatably installed on the inner wall of the outer locking cylinder, and an outward push spring is provided on the back of the locking block. The end of the outward push spring is fixed inside the outer locking cylinder.

[0008] The present invention is further configured such that the touch module includes two U-shaped limiting slides, a push abutment rod, and an adjustment spring. The top ends of the two push abutment rods are rotatably installed in each U-shaped limiting slide by means of pins. An adjustment spring is fixed at the middle position of the back of the push abutment rod and abuts against the inner wall of the U-shaped limiting slide. The edge of the eight-tooth gear disk is located inside the U-shaped limiting slide and contacts the push abutment rod.

[0009] The present invention is further provided that the base has a wire access hole on the outer wall corresponding to each convex contact piece.

[0010] This utility model has the following beneficial effects: 1. In this utility model, after each button is pressed, the reset spring will push the button back to its original position. The reset spring is in its maximum reset state and is not in a compressed state, so it can maintain a better reset effect for a long time.

[0011] 2. With this invention, each time the button is pressed, the touch module will control the eight-tooth gear disk to rotate one gear (approximately 45° angle), and the gear pressing plate will also rotate 45° accordingly. At this time, either the protruding gear contacts the pressing contact piece downward to achieve pressing, or the spaced notches face the pressing contact piece (no pressing). This realizes the opening and closing of the device, allowing the pressing contact piece and the two convex contact pieces to make or not make contact. The one-way self-locking component can only achieve unidirectional rotation of the eight-tooth gear disk, and will lock in the opposite direction. It can achieve sensitive and fast opening and closing, and frequent pressing will not cause abnormal rotation of the gear disk, resulting in a longer service life.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of a push-button switch with self-reset function.

[0015] Figure 2 This is an exploded structural diagram of a push-button switch with self-reset function.

[0016] Figure 3 This is a partial cross-sectional view of a push-button switch structure with self-reset function.

[0017] Figure 4 This is a structural diagram of the base and switch assembly.

[0018] Figure 5 This is a structural diagram of the base and mounting column.

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the one-way self-locking component.

[0020] Figure 7 This is a schematic diagram of the installation position of the U-shaped limit sliding plate.

[0021] The attached diagram lists the components represented by each number as follows: 1. Button; 10. Limiting ring; 11. Reset spring; 12. Pressing sleeve; 13. Push abutting rod; 131. Angle adjusting spring; 132. Pin; 14. U-shaped limiting slide plate; 2. Sleeve; 3. Spring locking sleeve; 4. Base; 40. Wire inlet hole; 41. Mounting post; 42. Square notch; 43. Pressure plate insert; 431. First spring; 44. Connecting plate insert; 441. Second spring; 5. Cyclic intermittent pressing contact module; 51. Eight-tooth gear disc; 511. Shaft; 512. Toothed convex band; 52. Gear pressing disc; 521. Protruding gear; 53. Pressing contact; 54. Convex contact contact; 6. One-way self-locking component; 61. Outer locking sleeve; 62. Locking block; 621. Push spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-7 This utility model relates to a push-button switch structure with a self-resetting function, comprising a button 1, a sleeve 2, a reset assembly, a switch assembly, and a base 4. A limiting ring 10 is fixedly provided at the bottom of the button 1, and a pressing sleeve 12 is connected to the bottom of the limiting ring 10. The reset assembly includes a reset spring 11 and a spring locking sleeve 3. The button 1 is inserted upwards from the bottom of the sleeve 2, with the limiting ring 10 pressed against the top of the sleeve 2. A spring gap is left between the inner wall of the sleeve 2 and the pressing sleeve 12. The reset spring 11 is sleeved on the outside of the pressing sleeve 12 and inserted into the spring gap. Within the gap, the threaded portion of the spring locking sleeve 3 is screwed into the bottom of the sleeve 2 and abuts against the bottom end of the reset spring 11. The switch assembly includes a reset contact module, a cyclic intermittent pressing contact module 5, and a mounting post 41. The reset contact module is embedded in the mounting post 41. The cyclic intermittent pressing contact module 5 is located above the reset contact module. The mounting post 41 is fixed to the bottom of the base 4. The top of the base 4 is fixedly connected to the bottom of the spring locking sleeve 3. A touch module for controlling the operation of the cyclic intermittent pressing contact module 5 is installed inside the pressing sleeve 12.

[0024] When the button is pressed, the reset spring 11 is pressed, and the pressing sleeve 12 moves down, causing the touch module to work by intermittently pressing the touch contact module 5. The intermittent pressing of the touch contact module 5 enables the reset contact module to be pressed and released at intervals, so that the reset contact module is turned on or off. After each button is pressed, the reset spring 11 will push the button back to its original position. The reset spring 11 is in its maximum reset state. The reset spring 11 can maintain a better reset effect for a long time if it is not in a compressed state.

[0025] The mounting post 41 is provided with a square notch 42, and a pressure plate insertion post 43 is provided in the middle of the square notch 42. Two connecting posts 44 are symmetrically provided on both sides of the pressure plate insertion post 43. The pressure plate insertion post 43 is covered with a first spring 431 and the bottom end of the first spring 431 is fixed to the bottom of the square notch 42. The connecting post 44 is covered with a second spring 441 and the bottom end of the second spring 441 is fixed to the bottom of the square notch 42. The height of the pressure plate insertion post 43 is greater than the height of the connecting post 44. The reset contact module includes a pressing contact 53 and two convex contact contacts 54. The protruding part of the convex contact contacts 54 faces outward and the non-protruding part is movably sleeved on the contact insert 44. The pressing contact 53 is sleeved on the pressure insert 43 at the middle position and is stuck in the square recess 42.

[0026] When the pressing contact 53 is pressed down, it compresses the first spring 431 and the two convex contact pieces 54. The two convex contact pieces 54 then move down, compressing the second spring 441. This creates an elastic contact between the pressing contact 53 and the two convex contact pieces 54, ensuring that the pressing contact 53 can be fully lowered and does not jam the gear pressing disc 52. When the pressing contact 53 disengages from the two convex contact pieces 54, it only moves upward a short distance because the top of the second spring 441 is fixed to the pressing contact 53 and will not continue to move upward. The first spring 431, however, causes the pressing contact 53 to move upward and disengage from the two convex contact pieces 54. The top of the first spring 431 is also fixedly connected to the bottom of the pressing contact 53.

[0027] The intermittent pressing contact module 5 includes a gear shaft, a one-way self-locking component 6, and a gear pressing disc 52. The gear pressing disc 52 has four protruding gears 521 evenly distributed around its circumference. There is a spacer notch between adjacent protruding gears 521. The bottom width of the protruding gear 521 is equal to the width of the spacer notch. The gear shaft includes a shaft 511 and an eight-tooth gear disc 51. One end of the shaft 511 is fixed to the center of one side of the eight-tooth gear disc 51. The other ends of two shafts 511 are symmetrically fixed to the two sides of the gear pressing disc 52. The one-way self-locking component 6 is sleeved on the shaft 511. The mounting post 41 has multiple sleeve plates on its top wall, and the sleeve plates are used to cover the shaft 511 and the one-way self-locking component 6. The shaft 511 can rotate inside the sleeve plates, and the gear pressing plate 52 is located above the pressing contact plate 53.

[0028] Each time the gear pressing disc 52 rotates 45°, either the protruding gear 521 faces downwards to contact the pressing contact piece 53, causing it to move completely downwards and make contact with the two convex contact pieces 54, thus establishing electrical connection, or when it rotates another 45°, a spacer notch is provided between adjacent protruding gears 521 facing the pressing contact piece 53, with the spacer notch being far from the pressing contact piece 53, while the adjacent protruding gears 521 are tilted to the sides and do not contact the pressing contact piece 53. In this case, the pressing contact piece 53 does not contact the two convex contact pieces 54. Figure 6 The protruding gear 521 shown rotates clockwise. One side is arc-shaped and the end is flat. The arc shape facilitates sliding on the pressing contact 53, and the flat surface can abut well against the pressing contact 53.

[0029] The one-way self-locking component 6 includes an outer locking cylinder 61, a locking block 62, and a toothed convex band 512. The shaft 511 is provided with a toothed convex band 512. The outer locking cylinder 61 is sleeved on the shaft 511 and the two are coaxial. The toothed convex band 512 does not contact the inner wall of the outer locking cylinder 61. The locking block 62 is rotatably installed on the inner wall of the outer locking cylinder 61. An outward push spring 621 is provided on the back of the locking block 62. The end of the outward push spring 621 is fixed inside the outer locking cylinder 61.

[0030] like Figure 6 The clockwise rotation of the shaft 511 causes a toothed band 512 to rotate, which in turn causes the locking block 62 to rotate. However, when rotating counterclockwise, the locking block 62 will momentarily lock one tooth of the toothed band 512, making it impossible to reverse.

[0031] The touch module includes two U-shaped limiting slide plates 14, a push abutment rod 13, and an angle adjustment spring 131. The top ends of the two push abutment rods 13 are rotatably installed in each U-shaped limiting slide plate 14 via pins 132. An angle adjustment spring 131 is fixed at the middle position on the back of the push abutment rod 13. The angle adjustment spring 131 abuts against the inner wall of the U-shaped limiting slide plate 14. The edge of the eight-tooth gear disk 51 is located inside the U-shaped limiting slide plate 14 and contacts the push abutment rod 13.

[0032] like Figure 3As shown, when the abutment rod 13 is pushed down, one tooth of the eight-tooth gear disk 51 is displaced downward by approximately 45°. At this point, the eight-tooth gear disk 51 can no longer be rotated. Waiting for button 1 to reset, the abutment rod 13 is pushed up, but it cannot pull the eight-tooth gear disk 51 to rotate in the opposite direction (the one-way self-locking component 6 locks it). When it moves up to above one tooth of the previous eight-tooth gear disk 51, the angle-adjusting spring 131 pushes out, pushing the abutment rod 13 to abut against the previous tooth. However, the tail end of the abutment rod 13 abuts against the inner wall of the U-shaped limiting slide plate 14, preventing it from opening too wide. The next time button 1 is pressed, one tooth of the eight-tooth gear disk 51 continues to move downward by 45°, thus achieving repeated opening and closing. Button 1 automatically resets after each press.

[0033] The base 4 has a wire access hole 40 on its outer wall corresponding to each convex contact piece 54.

[0034] Two switch wires are connected to the two wire inlet holes 40 to realize the switching function.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A push-button switch structure with self-reset function, characterized in that: The assembly includes a button (1), a sleeve (2), a reset assembly, a switch assembly, and a base (4). A limiting ring (10) is fixedly provided at the bottom of the button (1). A pressing sleeve (12) is connected to the bottom of the limiting ring (10). The reset assembly includes a reset spring (11) and a spring locking sleeve (3). The button (1) is inserted upwards from the bottom of the sleeve (2) and the limiting ring (10) is pressed against the top of the sleeve (2). A spring gap is left between the inner wall of the sleeve (2) and the pressing sleeve (12). The reset spring (11) is sleeved around the pressing sleeve (12) and inserted into the spring gap. The threaded part of the locking sleeve (3) is screwed into the bottom of the sleeve (2) and abuts against the bottom end of the reset spring (11). The switch assembly includes a reset contact module, a cyclic intermittent pressing contact module (5) and a mounting post (41). The reset contact module is embedded in the mounting post (41). The cyclic intermittent pressing contact module (5) is located above the reset contact module. The mounting post (41) is fixed to the bottom of the base (4). The top of the base (4) is fixedly connected to the bottom of the spring locking sleeve (3). The pressing sleeve (12) is equipped with a touch module that controls the operation of the cyclic intermittent pressing contact module (5).

2. The push-button switch structure with self-reset function according to claim 1, characterized in that, The mounting post (41) is provided with a square notch (42), and a pressure plate insertion post (43) is provided in the middle of the square notch (42). Two connecting posts (44) are symmetrically provided on both sides of the pressure plate insertion post (43). The pressure plate insertion post (43) is covered with a first spring (431) and the bottom end of the first spring (431) is fixed to the bottom of the square notch (42). The connecting post (44) is covered with a second spring (441) and the bottom end of the second spring (441) is fixed to the bottom of the square notch (42). The height of the pressure plate insertion post (43) is greater than the height of the connecting post (44). The reset contact module includes a pressing contact (53) and two convex contact contacts (54). The protruding part of the convex contact contacts (54) faces outward and the non-protruding part is movably sleeved on the contact insert (44). The middle position of the pressing contact (53) is sleeved on the pressure insert (43), and the pressing contact (53) is stuck in the square notch (42).

3. The push-button switch structure with self-reset function according to claim 2, characterized in that, The intermittent pressing contact module (5) includes a gear shaft, a one-way self-locking component (6), and a gear pressing plate (52). The gear pressing plate (52) has four protruding gears (521) evenly distributed around its circumference. There is a spacer notch between adjacent protruding gears (521). The bottom width of the protruding gear (521) is equal to the width of the spacer notch. The gear shaft includes a shaft (511) and an eight-tooth gear disk (51). One end of the shaft (511) is fixed to the center of one side of the eight-tooth gear disk (51). The other ends of two shafts (511) are symmetrically fixed to the two sides of the gear pressing plate (52). The one-way self-locking component (6) is sleeved on the shaft (511). The mounting post (41) has multiple sleeve plates on its top wall, and the sleeve plates are used to cover the shaft (511) and the one-way self-locking component (6). The shaft (511) can rotate inside the sleeve plates, and the gear pressing plate (52) is located above the pressing contact plate (53).

4. The push-button switch structure with self-reset function according to claim 3, characterized in that, The one-way self-locking component (6) includes an outer locking cylinder (61), a locking block (62), and a toothed convex band (512). The shaft (511) is provided with a toothed convex band (512). The outer locking cylinder (61) is sleeved on the shaft (511) and the two are coaxial. The toothed convex band (512) does not contact the inner wall of the outer locking cylinder (61). The locking block (62) is rotatably installed on the inner wall of the outer locking cylinder (61). The back of the locking block (62) is provided with an outward push spring (621). The end of the outward push spring (621) is fixed inside the outer locking cylinder (61).

5. A push-button switch structure with self-reset function according to claim 3, characterized in that, The touch module includes two U-shaped limiting slides (14), a push abutment rod (13), and an angle adjustment spring (131). The top ends of the two push abutment rods (13) are rotatably installed in each U-shaped limiting slide (14) by means of pins (132). An angle adjustment spring (131) is fixed in the middle of the back of the push abutment rod (13). The angle adjustment spring (131) abuts against the inner wall of the U-shaped limiting slide (14). The edge of the eight-tooth gear disk (51) is in contact with the push abutment rod (13) inside the U-shaped limiting slide (14).

6. The push-button switch structure with self-reset function according to claim 2, characterized in that, The base (4) has a wire access hole (40) on its outer wall corresponding to each convex contact piece (54).

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