Switch matching structure

Abstract

The utility model discloses a switch cooperation structure comprising a frame body which is provided with a control block of which the surface is provided with contacts; the rotating plate is connected with the frame body through a rotating structure, so that the rotating plate drives a rotating shaft of the rotating structure to rotate when rotating relative to the frame body; the touch pressing block is connected with the rotating shaft, so that when the rotating shaft rotates, the touch pressing block rotates around a connecting point of the touch pressing block and the rotating shaft until the touch pressing block tangentially abuts against the contact or is far away from the contact, and the switch is switched between two working states; one end of the elastic piece is mounted on the frame body, and the other end is connected with the touch pressing block. According to the switch matching structure, the touch pressing direction of the touch pressing block is vertical to the top surface of the contact, so that the condition that the service life of the switch is influenced due to an overvoltage condition can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of switch control, in particular to a switch matching structure. Background Art

[0002] As a regulating and controlling component for the working state conversion of instruments and equipment, switches are widely used in daily life. The existing types of switches include contact switches, isolating switches, push-button switches, etc. Among them, in the existing contact switches, since the pressing direction is along the axial direction of the contact, overvoltage damage is likely to occur. In the prior art, the patent with the publication number CN202836044U discloses a switch device for the lighting lamp in the refrigerator's fresh food compartment. When the refrigerator door is closed, the outer edge of the fan-shaped block lighting switch is squeezed by the step, so that the lighting switch rotates clockwise to squeeze the controller, and then the controller controls the extinguishing of the lighting lamp; when the refrigerator door is opened, the step releases the lighting switch, and the lighting switch rotates counterclockwise under the action of the restoring spring and leaves the controller, and then the controller controls the lighting lamp to illuminate. This control method mainly uses the restoring force of the door body and the spring to make the lighting switch squeeze or move away from the controller to form a contact type contact. However, when the door body is closed, the lighting switch always rotates to squeeze the controller. When the lighting switch rotates further under the action of external forces such as the shaking of the refrigerator, it will further squeeze the controller, which is likely to cause damage to the controller due to overvoltage.

[0003] In view of this, it is necessary to design a switch matching structure to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a switch matching structure that makes the pressing direction of the pressing block perpendicular to the top surface of the contact, avoiding affecting the service life of the switch due to overvoltage.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A switch matching structure includes:

[0007] A frame body, on which a control block with a contact on its surface is installed;

[0008] A rotating plate, connected to the frame body through a rotating structure, so that when the rotating plate rotates relative to the frame body, the rotating shaft of the rotating structure rotates;

[0009] A pressing block, connected to the rotating shaft, so that when the rotating shaft rotates, the pressing block rotates around its connection point with the rotating shaft to be tangentially abutted against or away from the contact, enabling the switch to switch between two working states;

[0010] An elastic member, with one end installed on the frame body and the other end connected to the pressing block, for keeping the relative stability of the rotating plate when the pressing block is in different working states.

[0011] As a further improvement of the present utility model, the side of the pressing block away from the rotating shaft is of a flat arc surface structure.

[0012] As a further improvement of the present utility model, an elastic region is provided between the contact point and the control block.

[0013] As a further improvement of the present utility model, the contact portion between the contact point and the pressing block is provided with a flat arc surface.

[0014] As a further improvement of the present utility model, a receiving cavity with an opening at the top is provided inside the frame body, and the rotating plate is arranged in the receiving cavity.

[0015] As a further improvement of the present utility model, the rotating structure further includes a first through hole provided on the frame body and a second through hole corresponding to the first through hole and provided on the rotating plate. The rotating shaft sequentially passes through the first through hole and the second through hole, and is fixedly engaged with the rotating plate through an engaging structure.

[0016] As a further improvement of the present utility model, the engaging structure includes a retaining block spaced on the rotating shaft and a flexible block with a certain elasticity, and a retaining boss matching the retaining block and a key groove matching the flexible block provided on the side wall of the second through hole. Along the radial direction of the rotating shaft, the retaining block and the flexible block are symmetrically arranged with the center of the rotating shaft as the center.

[0017] As a further improvement of the present utility model, the retaining boss is axially arranged in the middle position of the second through hole along the axial direction of the second through hole.

[0018] As a further improvement of the present utility model, a fixing hole for installing an elastic member is provided at one end of the pressing block away from the rotating shaft.

[0019] As a further improvement of the present utility model, the elastic member is a torsion spring. One end of the torsion spring is fixed on the frame body through a fixing block, and the other end is installed in the fixing hole.

[0020] The beneficial effects of the present utility model are as follows:

[0021] 1. By using the rotation of the rotating plate to drive the rotation of the rotating shaft, the pressing block connected to the rotating shaft rotates to be tangentially in contact with or away from the contact point, so that the switch is switched between off and on; by making the pressing direction of the pressing block perpendicular to the top surface of the contact point, when the rotating plate is further rotated under the action of an external force and the pressing block is further rotated, the contact point will not be easily damaged due to excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the switch matching structure of the present utility model.

[0023] Figure 2 Explosion structure schematic diagram of the switch cooperation structure.

[0024] Figure 3 Structure schematic diagram of the control block.

[0025] Figure 4 Structure schematic diagram of a partial structure of the rotating plate.

[0026] Figure 5 Structure schematic diagram of another perspective of a partial structure of the rotating plate.

[0027] Figure 6 Structure schematic diagram of the frame and the bracket.

[0028] Figure 7 Structure schematic diagram of the rotating shaft and the touch pressing block.

[0029] Figure 8 Structure schematic diagram of the torsion spring.

[0030] Figure 9 Structure schematic diagram of the switch being turned on.

[0031] Reference numerals

[0032] 10. Frame; 11. Accommodating cavity; 12. First through hole; 13. Fixed block; 20. Control block; 21. Contact point; 30. Rotating plate; 31. Force-receiving part; 32. Connecting part; 33. Second through hole; 331. Anti-retreat boss; 332. Keyway; 333. Through groove; 40. Rotating shaft; 41. First cross bar; 411. Anti-retreat block; 42. Second cross bar; 421. Flexible block; 43. Third cross bar; 50. Touch pressing block; 51. Fixed hole; 60. Torsion spring; 61. Ring structure; 70. Bracket; 71. Installation groove; 72. Installation hole; 73. Snap structure. Detailed implementation manners

[0033] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Here, it should also be noted that in order to avoid obscuring the present utility model due to unnecessary details, only the structures and / or processing steps closely related to the solution of the present utility model are shown in the drawings, while other details less related to the present utility model are omitted.

[0035] In addition, it should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or apparatus.

[0036] Please refer to Figure 1 and Figure 2 As shown, the present utility model provides a switch cooperation structure, comprising:

[0037] A frame body 10, on one side of which a control block 20 with a contact point 21 on its surface is installed;

[0038] A rotating plate 30, which is connected to the frame body 10 through a rotating structure, such that when the rotating plate 30 rotates relative to the frame body 10, it drives the rotating shaft 40 of the rotating structure to rotate;

[0039] A pressing block 50, which is connected to the rotating shaft 40, such that when the rotating shaft 40 rotates, the pressing block 50 rotates around its connection point with the rotating shaft 40 to tangentially abut against or move away from the contact point 21, so that the switch is switched between two working states;

[0040] An elastic member, one end of which is installed on the frame body 10 and the other end is connected to the pressing block 50, and is used to keep the pressing block 50 relatively stable when it is in different working states.

[0041] Specifically, the side of the pressing block 50 away from the rotating shaft 40 has a flat arc surface structure; and the top surface of the contact point 21 is also provided with a flat arc surface ( Figure 3 ). The flat arc surface settings of the pressing block 50 and the contact point 21 can effectively increase the contact area between the pressing block 50 and the contact point 21, ensure the connection effect between the pressing block 50 and the contact point 21. At the same time, since the pressing block 50 approaches the contact point 21 tangentially along the surface perpendicular to the contact point when rotating, the flat arc surface setting is conducive to the pressing block 50 rotating to be tangent to the top surface of the contact point 21.

[0042] Specifically, an elastic region (not shown in the figure) is provided between the contact point 21 and the control block 20. Exemplarily, the elastic region is a spring. When the pressing block 50 rotates to tangentially abut against the contact point 21, the spring is in a compressed state. When an external force causes the rotating plate 30 to slightly shake and drive the pressing block 50 to shake left and right, under the action of the restoring force, the spring returns a certain length so that the contact point 21 can still abut against the pressing block 50, and at this time the spring is still in a compressed state. Furthermore, the setting of the spring can ensure the contact situation between the contact point 21 and the pressing block 50, avoid the situation of poor contact caused by the left and right swinging of the pressing block 50 due to the action of external force, and thus ensure the working state of the circuit.

[0043] Exemplarily, an accommodation cavity 11 with an opening at the top is provided inside the housing 10, and the rotating plate 30 is arranged inside the accommodation cavity 11, such that the rotating plate 30 can rotate 90° relative to the housing 10.

[0044] Specifically, the rotating structure further includes a first through hole 12 provided on the housing 10 and a second through hole 33 provided at the left end of the rotating plate 30 corresponding to the first through hole 12 ( Figure 4 ), the rotating shaft 40 sequentially passes through the first through hole 12 and the second through hole 33, and is fixedly engaged with the rotating plate 30 through an engaging structure. Thus, under the action of an external force, the rotation of the rotating plate 30 drives the rotation of the rotating shaft 40.

[0045] Specifically, as Figure 4 , Figure 5 and Figure 7 shown, the engaging structure includes a retaining block 411 spacedly arranged on the rotating shaft 40 and a flexible block 421 with a certain elasticity, and a retaining boss 331 matching the retaining block 411 and a key groove 332 matching the flexible block 421 provided on the side wall of the second through hole 33. Along the radial direction of the rotating shaft 40, the retaining block 411 and the flexible block 421 are symmetrically arranged about the center of the rotating shaft 40. Exemplarily, along the axial direction of the rotating shaft 40, the retaining block 411 is arranged at the middle position of the rotating shaft 40, the flexible block 421 is arranged at one end of the rotating shaft 40 close to the control block 20, the retaining boss 331 is arranged at the middle position of the second through hole 33 along the axial direction of the second through hole 33, the key groove 332 is arranged at one end of the second through hole 33 close to the control block 20, and the size of the flexible block 421 is larger than the size of the key groove 332; the retaining block 411 and the retaining boss 331 are arranged in a sliding engagement.

[0046] Exemplarily, as Figure 7}shown, the rotating shaft 40 includes a first cross bar 41, a second cross bar 42 and a third cross bar 43 that are sequentially connected in the direction close to the control block 20 and the diameters of which increase sequentially. The retaining block 411 is arranged on the first cross bar 41, and the flexible block 421 is arranged on the second cross bar 42. When the rotating shaft 40 sequentially passes through the first through hole 12 and the second through hole 33 until the flexible block 421 touches the key groove 332, under the action of an external force, the flexible block 421 is squeezed into the key groove 332. When the rotating shaft 40 is installed in a preset position, the external force is released, and under the restoring force of the flexible block 421, the flexible block 421 is engaged in the key groove 332. At this time, the retaining block 411 also passes over the retaining boss 331, and one side of the retaining block 411 is closely attached to one side of the retaining boss 331, forming an engaging limit to prevent the rotating shaft 40 from falling off from the second through hole 33. Thus, by using the tight engagement of the flexible block 421 and the key groove 332 under the action of the restoring force and the engaging limit of the retaining block 411 and the retaining boss 331, the rotating shaft 40 is fixedly engaged on the rotating plate 30. When the rotating plate 30 rotates under the action of an external force, the rotating shaft 40 can be driven to rotate synchronously.

[0047] Exemplarily, one end of the anti-return block 411 away from the pressing block 50 is provided with a slope, and the inclined surface of the slope extends towards the rotation shaft 40 in a posture away from the pressing block 50, and the side surface of the other end of the anti-return block 411 is perpendicular to the axial direction of the rotation shaft 40; correspondingly, one end of the anti-return boss 331 close to the pressing block 50 is provided with a slope, and the inclined surface of the slope extends towards the side wall of the second through hole 33 in a posture close to the pressing block 50, and the side surface of the other end of the anti-return boss 331 is perpendicular to the axial direction of the second through hole 33. The anti-return block 411 is made of a material with a certain elasticity, so that under the radial acting force along the rotation shaft 40, the anti-return block 411 can contract, so that when the rotation shaft 40 is inserted into the second through hole 33 until the anti-return block 411 touches the anti-return boss 331 and the rotation shaft 40 is further inserted into the second through hole 33, the anti-return block 411 can cross over the anti-return boss 331. Among them, the slope settings on the anti-return block 411 and the anti-return boss 331 are also beneficial to the anti-return block 411 crossing over the anti-return boss 331, so that when the rotation shaft 40 is installed at the preset position, the anti-return block 411 and the anti-return boss 331 form a snap-fit limit.

[0048] The diameter of the third cross bar 43 is larger than the diameter of the second through hole 33 and smaller than the diameter of the first through hole 12, so that when the rotation shaft 40 is installed at the preset position, the third cross bar 43 does not extend into the second through hole 33 but is located in the first through hole 12. Exemplarily, the third cross bar 43 is made of plastic material, and the corresponding part of the frame 10 of the first through hole 12 can be made of plastic or metal material, so that the third cross bar 43 can rotate in the first through hole 12, so that the rotating plate 30 can rotate relative to the frame 10.

[0049] Exemplarily, a through groove 333 ( Figure 5 ) for facilitating the anti-return boss 331 to enter the second through hole 33 is further provided at one end of the second through hole 33 close to the control block 20.

[0050] Specifically, as Figure 2 shown, the rotating plate 30 includes a force-receiving part 31 and a connecting part 32 connected to the force-receiving part 31. The force-receiving part 31 is used to receive force to adjust the state of the rotating plate 30, and the left end of the connecting part 32 is connected to the frame 10 through a rotating structure. Under the action of an external force, the force-receiving part 31 can leave the frame 10 through the opening. Exemplarily, the connecting part 32 is arranged in a U shape.

[0051] Specifically, a fixing hole 51 ( Figure 7 ) for installing an elastic member is provided at one end of the pressing block 50 away from the rotation shaft 40.

[0052] Exemplarily, as Figure 1 shown, the elastic member is a torsion spring 60. One end of the torsion spring 60 is fixed on the frame 10 through a fixing block 13, and the other end is clamped on the fixing hole 51. An annular groove is provided on the fixing block 13, and an annular structure 61 with an opening is provided at one end of the torsion spring 60.Figure 8 ), and the opening diameter is smaller than the annular diameter. Thus, the annular structure 61 can be sleeved in the annular groove through the opening to fix the fixing block 13 and the torsion spring 60.

[0053] Specifically, as Figure 6 shown, a bracket 70 is provided on the frame body 10, an installation groove 71 is provided on the bracket 70, an installation hole 72 is provided on the bottom surface of the installation groove 71, and a buckle structure 73 is provided on the top surface of the installation groove 71; a positioning post is provided on the control block 20. Align the positioning post with the installation hole 72, and insert the control block 20 into the installation groove 71 through the top opening of the installation groove 71. When the positioning post falls into the installation hole 72, the buckle structure 73 on the top surface of the installation groove 71 abuts against the surface of the control block 20, so that the control block 20 is fixed on the frame body 10. The buckle structure 73 can adopt the structure in the prior art and will not be elaborated here.

[0054] During use, rotate the rotating plate 30 until the stress part 31 leaves the frame body 10 and is substantially perpendicular to the top surface of the frame body 10. The rotation of the rotating plate 30 drives the rotation of the rotating shaft 40, and then the touch pressure block 50 rotates around its connection point with the rotating shaft 40 until the touch pressure block 50 disconnects from the contact point 21 and the switch is turned on. At this time, the torsion spring 60 provides a force to maintain the stress part 31 of the rotating plate 30 perpendicular to the top surface of the frame body 10 ( Figure 9 ); rotate the rotating plate 30 until the stress part 31 is located inside the frame body 10 and parallel to the top surface of the frame body 10. The rotation of the rotating plate 30 drives the rotation of the rotating shaft 40, and then the touch pressure block 50 rotates until the flat arc surface of the touch pressure block 50 is tangentially abutted against the contact point 21 and the switch is turned off. At this time, the torsion spring 60 provides a force to maintain the stress part 31 of the rotating plate 30 parallel to the top surface of the frame body 10 ( Figure 1 ).

[0055] The setting of the torsion spring 60 enables the touch pressure block 50 to maintain a relatively stable state when an external force controls the rotating plate 30 to be in different states, and then enables the rotating plate 30 and the frame body 10 to maintain a relatively stable state.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A switch cooperation structure, characterized in that, Including: A housing, on which a control block with contacts on its surface is installed; A rotating plate, connected to the housing through a rotating structure, such that when the rotating plate rotates relative to the housing, it drives the rotation of the rotating shaft of the rotating structure; A pressing block, connected to the rotating shaft, such that when the rotating shaft rotates, the pressing block rotates around its connection point with the rotating shaft to tangentially abut against or move away from the contacts, causing the switch to switch between two working states; An elastic member, with one end installed on the housing and the other end connected to the pressing block, for keeping the pressing block relatively stable when in different working states.

2. The switch cooperation structure according to claim 1, wherein: The side of the pressing block away from the rotating shaft has a flat arc surface structure.

3. The switch matching structure according to claim 1, characterized in that: An elastic region is provided between the contacts and the control block.

4. The switch matching structure according to claim 1, characterized in that: The portion of the contacts in contact with the pressing block is provided with a flat arc surface.

5. The switch matching structure according to claim 1, characterized in that: An accommodation cavity with an opening at the top is provided inside the housing, and the rotating plate is arranged in the accommodation cavity.

6. The switch cooperation structure according to claim 5, characterized in that: The rotating structure further includes a first through hole provided on the housing and a second through hole corresponding to the first through hole provided on the rotating plate. The rotating shaft sequentially passes through the first through hole and the second through hole and is fixedly engaged with the rotating plate through an engaging structure.

7. The switch matching structure according to claim 6, wherein: The engaging structure includes a retaining block and a flexible block with a certain elasticity spaced apart on the rotating shaft, and a retaining boss matching the retaining block and a keyway matching the flexible block provided on the side wall of the second through hole. Along the radial direction of the rotating shaft, the retaining block and the flexible block are symmetrically arranged with the center of the rotating shaft as the center.

8. The switch matching structure according to claim 7, wherein: The retaining boss is axially arranged in the middle position of the second through hole along the axial direction of the second through hole.

9. The switch matching structure according to claim 1, characterized in that: A fixing hole for installing the elastic member is provided at one end of the pressing block away from the rotating shaft.

10. The switch cooperation structure according to claim 9, wherein: The elastic member is a torsion spring. One end of the torsion spring is fixed on the housing through a fixing block, and the other end is installed in the fixing hole.

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