CN210628146U - Push button switch pressing mechanism and key device - Google Patents
Push button switch pressing mechanism and key device Download PDFInfo
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- CN210628146U CN210628146U CN201922046157.9U CN201922046157U CN210628146U CN 210628146 U CN210628146 U CN 210628146U CN 201922046157 U CN201922046157 U CN 201922046157U CN 210628146 U CN210628146 U CN 210628146U
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Abstract
The utility model relates to a button switch pressing mechanism and a button device, which comprises a pressing piece and a movable contact piece component movably arranged on the pressing piece, wherein the movable contact piece component comprises a conductive bridge plate, contacts are arranged at both ends of the conductive bridge plate in the length direction, a through groove is arranged in the middle of the conductive bridge plate, spring supporting parts are arranged at both ends of the through groove in the length direction, a spring supporting block is arranged on the pressing piece and corresponds to the through groove, the spring supporting block can pass through the through groove along with the movement of the conductive bridge plate, the two spring supporting parts in the through groove are respectively positioned at the two sides of the spring supporting block, the spring supporting block is provided with spring abutting parts which are correspondingly matched with the two spring supporting parts one by one, two spiral springs arranged in a V shape are supported on the conductive bridge plate, one end of each spiral spring is supported on the spring supporting part of the through groove, and the other end of each spiral spring is supported on the spring abutting part of the spring supporting block. The conductive structure has the advantages of convenience in installation, large conductive area, stability and reliability.
Description
Technical Field
The utility model relates to a switch of control power break-make specifically is button switch pressing mechanism.
Background
At present, a plurality of devices are provided with push type control button switches for starting, scramming, stopping and the like. Button switch's switch main part is usually including the base, be equipped with two static contacts in the base and be used for controlling the pressing mechanism of two static contact break-make, current pressing mechanism is including pressing element and movable contact spring subassembly, pressing element includes that the insulation that insulating plastics made presses the briquetting and is fixed in the insulating current conducting plate that presses on the briquetting, movable contact spring subassembly is including being two movable contact springs that the V font supported on the current conducting plate, be equipped with the contact on every movable contact spring, two movable contact springs are pulled fixedly through an extension spring, during the use, press the briquetting through pressing the insulation, thereby drive two movable contact springs and warp from top to bottom, and then make movable contact and static contact or separation on the movable contact spring, realize the control operation of button. However, the movable contact spring component with the existing structure has the following defects: 1. in the movable contact piece assembly with the structure, the movable contact pieces are supported on the conductive plate of the pressing piece through the tension springs by adopting two movable contact pieces, and the movable contact piece assembly is inconvenient to assemble; 2. in the using process, the connecting part between the two movable contact pieces is easy to break, so that the using stability of the button is influenced; 3. the movable contact spring is supported by the tension spring to swing on the conducting plate of the pressing piece, so that the conducting area is small, the conducting performance is poor, the movable contact spring and the conducting plate are abraded generally, and the use stability of the button can be influenced.
Disclosure of Invention
The utility model discloses the invention purpose: for overcoming the defect that prior art exists, the utility model provides a simple to operate, electrically conductive area are big and reliable and stable button switch pressing mechanism.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a button switch pressing mechanism, includes the pressing member and the movable contact piece subassembly that the activity set up on the pressing member, its characterized in that: the movable contact spring assembly comprises a conductive bridge plate, contacts are arranged at two ends of the conductive bridge plate in the length direction, a through groove is formed in the middle of the conductive bridge plate, spring supporting parts are arranged at two ends of the through groove in the length direction, a spring supporting block is arranged on the pressing piece and corresponds to the through groove in position, the spring supporting block can penetrate through the through groove along with the movement of the conductive bridge plate, the two spring supporting parts in the through groove are respectively located at two sides of the spring supporting block, spring abutting parts matched with the two spring supporting parts in a one-to-one correspondence mode are arranged on the spring supporting block, two spiral springs arranged in a V shape are supported on the conductive bridge plate, one end of each spiral spring is supported on the spring supporting part of the through groove, and the other end of each spiral spring is supported on.
Through adopting above-mentioned technical scheme, adopt a complete electrically conductive bridge plate to realize electrically conductive, electrically conductive reliable, do not have the friction between electrically conductive bridge plate and the pressing piece, it is more reliable to work, and especially important adopts coil spring to realize the roof pressure support to electrically conductive bridge plate, and coil spring simple structure is convenient for obtain, uses the good reliability.
Preferably, the pressing piece is provided with a return spring positioning seat located below the spring supporting block, the lower end face of the return spring positioning seat is provided with a return spring positioning portion, the upper end face of the return spring positioning seat and the lower end of the spring supporting block are arranged at intervals, and the upper end face of the return spring positioning seat can be used for supporting the conductive bridge plate to be supported by the elastic support pressure of the spiral spring. Under this structural design, form the reset spring positioning seat for the reset spring installation that supplies the drive pressing part to reset specially, the interval between reset spring positioning seat and the spring supporting shoe supplies electrically conductive bridge plate to assemble in place, it corresponds with the spring supporting shoe position to link up the groove promptly, the up end of reset spring positioning seat can supply electrically conductive bridge plate to support the pressure under bracing at coil spring's elasticity in addition, like this when the assembly, coil spring, electrically conductive bridge plate and pressing part can assemble in advance wholly and be unlikely to the scattering, convenient subsequent equipment.
Preferably, spring butt portion includes that the spring cup joints the projection, and the radial extension of spring cup joint projection has two mutual dispositions to support protruding muscle, supports protruding muscle and extends along the direction of perpendicular coil spring swing place face, and the spring cup joints the projection and exceeds the protruding muscle setting of support, coil spring one end cover cup joints the projection in the spring and supports on supporting protruding muscle. Under this structural design, coil spring overlaps in the spring cup joints the projection and supports in supporting protruding muscle and realizes coil spring reliable location and swing.
Preferably, the spring support portion is a protruding piece integrally formed on the conductive bridge plate, and the coil spring is sleeved on the protruding piece. With the structural design, the spring support part has a simple structure.
Preferably, the back of the pressing piece is provided with supporting convex ribs which are distributed in a cross shape from the longitudinal direction and the transverse direction. Under this structural design, the back of pressing piece is the guide contact surface when pressing piece is pressed to slide, supports the fin and can reduce area of contact for the pressing piece slides more smoothly reliably, supports the fin and is the cross form, makes to support more reliable and more stable.
Preferably, the spring support block is integrally formed on the pressing member. Under this structural design, convenient processing.
The utility model also provides a pressing means simple to operate, electrically conductive area are big and reliable and stable button switch's button device, including the base, be equipped with contact assembly chamber on the base, contact assembly intracavity is equipped with two static contacts and is used for controlling the pressing means of two static contact break-make, and pressing means includes that sliding fit sets up the movable contact subassembly on the pressing piece with the activity in the pressing piece on the base, is equipped with reset spring, its characterized in that between pressing piece bottom and the base: the movable contact spring assembly comprises a conductive bridge plate, contacts are arranged at two ends of the conductive bridge plate in the length direction, a through groove is formed in the middle of the conductive bridge plate, spring supporting parts are arranged at two ends of the through groove in the length direction, a spring supporting block is arranged on the pressing piece and corresponds to the through groove in position, the spring supporting block can penetrate through the through groove along with the movement of the conductive bridge plate, the two spring supporting parts in the through groove are respectively located at two sides of the spring supporting block, spring abutting parts matched with the two spring supporting parts in a one-to-one correspondence mode are arranged on the spring supporting block, two spiral springs arranged in a V shape are supported on the conductive bridge plate, one end of each spiral spring is supported on the spring supporting part of the through groove, and the other end of each spiral spring is supported on. Through adopting above-mentioned technical scheme, adopt a complete electrically conductive bridge plate to realize electrically conductive, electrically conductive reliable, do not have the friction between electrically conductive bridge plate and the pressing piece, it is more reliable to work, and especially important adopts coil spring to realize the roof pressure support to electrically conductive bridge plate, and coil spring simple structure is convenient for obtain, uses the good reliability.
The present invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a push button switch of the present invention;
FIG. 2 is a state diagram of a conductive bridge plate of a push button switch pressing mechanism in a first position according to an embodiment of the present invention;
FIG. 3 is a state diagram of the electrically conductive bridge plate of the push button switch pressing mechanism in a second position in accordance with an embodiment of the present invention;
fig. 4 is a diagram illustrating a state in which the conductive bridge plate of the push button switch pressing mechanism of the present invention is supported on the upper end surface of the return spring positioning seat;
FIG. 5 is an exploded view of a push button switch pressing mechanism embodying the present invention;
fig. 6 is a schematic view of the pressing member according to the embodiment of the present invention.
Detailed Description
Referring to the attached drawings 1-6, the utility model discloses a button switch key device, which comprises a base 1, a contact piece assembly cavity is arranged on the base 1, two static contacts 2 which are oppositely arranged are arranged in the contact piece assembly cavity, a pressing mechanism for controlling the on-off of the two static contacts 2 is arranged in the contact piece assembly cavity, the pressing mechanism comprises a pressing piece 3 and a movable contact piece component which is movably arranged on the pressing piece 3, the pressing piece 3 is in sliding fit on the base 1, a reset spring 4 is arranged between the bottom of the pressing piece 3 and the base 1, the movable contact piece component comprises a conductive bridge plate 5, contacts 5-1 are arranged at two ends of the conductive bridge plate 5 in the length direction, a through groove 51 is arranged at the middle part of the conductive bridge plate 5, spring supporting parts 52 are arranged at two ends of the through groove 51 in the length direction, a spring supporting block 31 is arranged on the pressing, and the spring support block 31 can pass through the through groove 51 along with the movement of the conductive bridge plate 5, the two spring support parts 52 in the through groove 51 are respectively positioned at two sides of the spring support block 31, the spring support block 31 is provided with the spring contact part 32 correspondingly matched with the two spring support parts 52 one by one, the conductive bridge plate 5 is supported with two spiral springs 6 arranged in a V shape, one end of each spiral spring 6 is supported on the spring support part 52 of the through groove 51, and the other end of each spiral spring 6 is supported on the spring contact part 32 of the spring support block 31. The conductive bridge 5 is movable under the influence of the helical spring 6 between a first position (as shown in fig. 2) and a second position (as shown in fig. 3), the first position being located below the second position. The conductive bridge plate is completely conductive, the conductivity is reliable, no friction exists between the conductive bridge plate and the pressing piece, the work is more reliable, and particularly, the conductive bridge plate is supported by the spiral spring in a jacking mode.
The conductive bridge plate support device is characterized in that a return spring positioning seat 33 located below the spring support block 31 is arranged on the pressing piece 3, a return spring positioning portion 331 is arranged on the lower end face of the return spring positioning seat 33, the return spring 4 is arranged on the return spring positioning portion 331, an interval I is formed between an upper end face 332 of the return spring positioning seat 33 and the lower end of the spring support block 31, and the upper end face 332 of the return spring positioning seat 33 can be used for supporting the conductive bridge plate 5 under the elastic support pressure of the spiral spring 6. Form the reset spring positioning seat for the installation of the reset spring that supplies the drive pressing part to reset specially, the interval between reset spring positioning seat and the spring supporting shoe supplies electrically conductive bridge plate to assemble in place, link up the groove promptly and correspond with the spring supporting shoe position, the up end of reset spring positioning seat can supply electrically conductive bridge plate to support under the pressure at coil spring's elasticity in addition, like this when the assembly, coil spring, electrically conductive bridge plate and pressing part can assemble into in advance wholly and be unlikely to scatter (as shown in figure 4), make things convenient for subsequent equipment. The limiting part is arranged in the contact mounting cavity and used for limiting the moving position of the conductive bridge plate 5, the limiting part comprises a supporting part 11 and a stopping part which are oppositely arranged, the stopping part is located above the supporting part 11, the supporting part 11 supports the conductive bridge plate 5, the conductive bridge plate 5 is located at a first position under the limiting action of the supporting part 11, the conductive bridge plate 5 is limited to jump to a second position under the action of the stopping part, the conductive bridge plate 5 is supported by the supporting part 11 so that the through groove 51 crosses the interval I and is sleeved on the spring supporting block 31, when the switch on-off mode of the key device is a normally open mode, the supporting part is a protrusion on the base, and when the switch on-off mode of the key device is a normally closed mode, the supporting part is a static contact.
For making the spring support reliable, spring abutting portion 32 includes spring socket convex column 321, and spring socket convex column 321 radially extends has two supporting convex ribs 322 of mutual disposition, and supporting convex rib 322 extends along the direction of perpendicular 6 swing place faces of coil spring, and spring socket convex column 321 exceeds supporting convex rib 322 and sets up, 6 one end covers in spring socket convex column 321 and supports on supporting convex rib 322. The spiral spring is sleeved on the spring sleeve convex column and supported on the supporting convex rib to realize reliable positioning and swinging of the spiral spring.
The spring support 52 is a protruding piece integrally formed on the conductive bridge plate 5, and the coil spring 6 is sleeved on the protruding piece. The spring support part has a simple structure.
The back of the pressing piece 3 is provided with supporting convex ribs 34 which are distributed in a cross shape from the longitudinal direction and the transverse direction. The back of pressing piece is the direction contact surface when pressing piece is pressed the slip, supports the fin and can reduce area of contact for the pressing piece slides more smoothly reliably, supports the fin and is the cross form, makes to support more reliable and more stable.
The spring support block 31 and the return spring positioning seat 33 are integrally formed on the pressing piece. The number of parts is small, and the parts are convenient to process.
Claims (10)
1. The utility model provides a button switch pressing mechanism, includes the pressing member and the movable contact piece subassembly that the activity set up on the pressing member, its characterized in that: the movable contact spring assembly comprises a conductive bridge plate, contacts are arranged at two ends of the conductive bridge plate in the length direction, a through groove is formed in the middle of the conductive bridge plate, spring supporting parts are arranged at two ends of the through groove in the length direction, a spring supporting block is arranged on the pressing piece and corresponds to the through groove in position, the spring supporting block can penetrate through the through groove along with the movement of the conductive bridge plate, the two spring supporting parts in the through groove are respectively located at two sides of the spring supporting block, spring abutting parts matched with the two spring supporting parts in a one-to-one correspondence mode are arranged on the spring supporting block, two spiral springs arranged in a V shape are supported on the conductive bridge plate, one end of each spiral spring is supported on the spring supporting part of the through groove, and the other end of each spiral spring is supported on.
2. The push button switch pressing mechanism according to claim 1, wherein: the conductive bridge plate is characterized in that a reset spring positioning seat is arranged on the pressing piece and located below the spring supporting block, a reset spring positioning portion is arranged on the lower end face of the reset spring positioning seat, an interval is formed between the upper end face of the reset spring positioning seat and the lower end of the spring supporting block, and the upper end face of the reset spring positioning seat can be used for supporting the conductive bridge plate to be supported by the elastic support pressure of the spiral spring.
3. The push button switch pressing mechanism according to claim 1, wherein: spring butt portion includes that the spring cup joints the projection, and the radial extension of spring cup joint projection has two mutual dispositions to support protruding muscle, supports protruding muscle and extends along the direction of perpendicular coil spring swing place face, and the spring cup joints the projection and exceeds the protruding muscle setting of support, coil spring one end cover cup joints the projection in the spring and supports on supporting protruding muscle.
4. The push button switch pressing mechanism according to claim 1, wherein: the spring support part is a lug which is integrally formed on the conductive bridge plate, and the spiral spring is sleeved on the lug.
5. The push button switch pressing mechanism according to claim 1, wherein: the back of the pressing piece is provided with supporting convex ribs which are distributed in a cross shape longitudinally and transversely.
6. The push button switch pressing mechanism according to claim 1, wherein: the spring supporting block is integrally formed on the pressing piece.
7. The utility model provides a button switch's button device, includes the base, is equipped with contact assembly chamber on the base, and contact assembly chamber is equipped with two static contacts and is used for controlling the pressing means of two static contact break-make, and pressing means includes that sliding fit sets up the movable contact subassembly on the pressing piece in pressing piece and activity on the base, is equipped with reset spring, its characterized in that between pressing piece bottom and the base: the movable contact spring assembly comprises a conductive bridge plate, contacts are arranged at two ends of the conductive bridge plate in the length direction, a through groove is formed in the middle of the conductive bridge plate, spring supporting parts are arranged at two ends of the through groove in the length direction, a spring supporting block is arranged on the pressing piece and corresponds to the through groove in position, the spring supporting block can penetrate through the through groove along with the movement of the conductive bridge plate, the two spring supporting parts in the through groove are respectively located at two sides of the spring supporting block, spring abutting parts matched with the two spring supporting parts in a one-to-one correspondence mode are arranged on the spring supporting block, two spiral springs arranged in a V shape are supported on the conductive bridge plate, one end of each spiral spring is supported on the spring supporting part of the through groove, and the other end of each spiral spring is supported on.
8. The button switch of claim 7, wherein: the pressing piece is provided with a reset spring positioning seat located below the spring supporting block, the lower end face of the reset spring positioning seat is provided with a reset spring positioning portion, the reset spring is supported on the reset spring positioning portion, the upper end face of the reset spring positioning seat and the lower end of the spring supporting block are arranged at intervals, the upper end face of the reset spring positioning seat can be used for supporting the conductive bridge plate to be supported under the elastic abutting pressure of the spiral spring, a supporting portion for supporting the conductive bridge plate is arranged in the contact mounting cavity, and the conductive bridge plate is supported by the supporting portion so that the through groove can cross the intervals and is sleeved on the spring supporting block.
9. The button switch of claim 7, wherein: spring butt portion includes that the spring cup joints the projection, and the radial extension of spring cup joint projection has two mutual dispositions to support protruding muscle, supports protruding muscle and extends along the direction of perpendicular coil spring swing place face, and the spring cup joints the projection and exceeds the protruding muscle setting of support, coil spring one end cover cup joints the projection in the spring and supports on supporting protruding muscle.
10. The button switch of claim 7, wherein: the spring support part is a lug which is integrally formed on the conductive bridge plate, and the spiral spring is sleeved on the lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922046157.9U CN210628146U (en) | 2019-11-21 | 2019-11-21 | Push button switch pressing mechanism and key device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922046157.9U CN210628146U (en) | 2019-11-21 | 2019-11-21 | Push button switch pressing mechanism and key device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210628146U true CN210628146U (en) | 2020-05-26 |
Family
ID=70750022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922046157.9U Active CN210628146U (en) | 2019-11-21 | 2019-11-21 | Push button switch pressing mechanism and key device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210628146U (en) |
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2019
- 2019-11-21 CN CN201922046157.9U patent/CN210628146U/en active Active
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