Metal elastic sheet structure and metal elastic sheet switch

Abstract

The invention discloses a metal elastic sheet structure. The metal elastic sheet structure comprises a base, an accommodating seat and a connecting arm, an inner cavity of the containing base is provided with wiring threads and a metal elastic piece, and a triggering assembly is arranged in the middle of the containing base. The trigger assembly comprises a first bolt buckle module and a second bolt buckle module, the horizontal plane of an arc-shaped head of the first bolt buckle module and a bolt buckle block form rigid mechanical limiting, the strong resilience force of a first reset spring is directly resisted, it is ensured that the positions of a U-shaped sliding block and an extension piece are stable in the conduction state, and accidental disconnection caused by vibration is eradicated. And the contact point keeps constant pressure in a locking state, so that the contact resistance is effectively reduced, and the lasting stability of circuit connection is improved. The invention further discloses a metal elastic sheet switch which comprises a pressing switch structure and a metal elastic sheet structure. Wherein the metal elastic sheet structure is connected with a circuit, and whether the metal elastic sheet structure is conducted with the circuit or not is controlled by pressing the switch structure.

Description

Technical Field

[0001] This invention relates to conductive connection technology, direct contact between two or more conductive components, and devices for achieving or maintaining the connection, and particularly to a metal spring structure and a metal spring switch. Background Technology

[0002] Metal spring switches, as a basic circuit on / off control element, are widely used in electronic equipment, industrial control, and medical instruments.

[0003] Existing technologies, such as the plug-in contact switch proposed in publication number CN110571071A, can effectively prevent water from entering the circuit in both the on and off states, while also meeting the requirement of forced circuit disconnection when the switch is turned off.

[0004] Currently available switches generally suffer from the following problems: First, relying on a simple spring reset structure, the contact points are prone to momentary separation or accidental contact under vibration or accidental touch, leading to unstable circuit operation, which may cause malfunctions, especially in precision equipment; Second, maintaining the conduction state mostly relies on continuous pressing or simple latches, the former being inconvenient to operate, and the latter being prone to accidental unlocking due to insufficient spring rebound force or weak mechanical limit; Third, although some switches have a self-locking function, the unlocking operation is usually coupled with the conduction action in the same component, posing a risk of accidental triggering, and lacking clear feedback on the operation stage, making it difficult for users to intuitively judge the current status.

[0005] Therefore, there is an urgent need for a metal spring switch structure that combines high-stability conduction locking, anti-accidental unlocking logic, and clear status indication. Summary of the Invention

[0006] To address the shortcomings of the existing technology, this invention proposes a metal spring structure and a metal spring switch.

[0007] The technical solution of this invention is implemented as follows:

[0008] A metal spring structure includes a base, a receiving seat, and a connecting arm. The receiving seat has an inner cavity with wiring threads and a metal spring, and a trigger assembly is disposed in the center of the receiving seat.

[0009] The triggering component has extension plates fixedly connected to both sides, allowing it to move up and down along the center of the receiving base. A first return spring is provided at the bottom of each extension plate.

[0010] The extension sheet is horizontally fixedly connected to a conductive sheet, and conductive contacts are provided at the bottom of both ends of the conductive sheet and at the top of the metal spring.

[0011] The triggering component includes a U-shaped slider, a first buckle module, and a second buckle module. A rectangular slider is slidably connected to the middle of the U-shaped slider. The first buckle module is fixedly installed at the bottom of the rectangular slider. The second buckle module is installed on both sides of the bottom of the receiving seat. When the triggering component is not connected, the first buckle module is located above the second buckle module.

[0012] In the conductive state, the first buckle module and the second buckle module cooperate to restrict the U-shaped slider from resetting.

[0013] Preferably, the first buckle module includes a round rod, and the end of the round rod away from the rectangular slider is provided with an arc-shaped head.

[0014] The round rod has a hollow cavity, and a conical head is movably connected to the round rod. The conical head has two conical surfaces and can move on the round rod. A third return spring is installed in the hollow cavity to allow the conical head to return to its original position.

[0015] Preferably, one end of the arc-shaped head is an arc-shaped surface, and the other end is a horizontal surface, with a conical cavity provided on the horizontal surface of the arc-shaped head.

[0016] A limiting disc is also fixedly connected to the round rod, which is used to restrict the conical head from moving away from the arc-shaped head.

[0017] Preferably, the second buckle module includes a buckle block that is slidably connected to both sides of the bottom of the receiving seat, wherein one end of the buckle block has an inclined surface and the other end of the buckle block is equipped with a fourth return spring.

[0018] Preferably, when the circuit is on, press down on the U-shaped slider; when the circuit is off, press down on the rectangular slider.

[0019] Preferably, the circuit disconnection has two stages. The first stage requires continuous pressure to push the conical head open the latch block and move it. The second stage relies on the spring force to complete the unlocking action after the pressure is released.

[0020] A metal spring switch includes a push-button switch structure and a metal spring structure, characterized in that the push-button switch structure includes a connecting base, a pressing cylinder, a button cover, and a switch button.

[0021] The connecting seat is fixedly connected to the pressing cylinder, the button cap is threadedly connected to the top of the pressing cylinder, a washer is fixedly connected to the bottom of the pressing cylinder, the switch button slides through the washer and is slidably connected to the pressing cylinder, and a fifth return spring is provided between the switch button and the pressing cylinder.

[0022] A limiting component is installed on the outside of the switch button, which controls the downward pressing stroke.

[0023] Preferably, the limiting component includes a swing arm, one end of which is set as a fixed axis, the swing arm swings along the fixed axis and is provided with a torsion spring, and a lever is provided at the end of the swing arm away from the fixed axis.

[0024] Preferably, the limiting component further includes a first limiting member and a second limiting member, wherein the first limiting member is composed of a first guide piece and a second guide piece, and the second limiting member is composed of a first blocking piece, a third guide piece, a second blocking piece, and a fourth guide piece.

[0025] Preferably, the first guide piece and the second guide piece form an angle, the third guide piece and the fourth guide piece are parallel to the first guide piece and the second guide piece, respectively, and the first blocking piece is higher than the second blocking piece.

[0026] The metal spring structure and metal spring switch of the present invention have the following beneficial effects:

[0027] The arc-shaped head of the first buckle module forms a rigid mechanical limit with the buckle block, directly resisting the strong rebound force of the first reset spring, ensuring that the U-shaped slider and extension piece are in a stable position in the conductive state, and preventing accidental disconnection due to vibration.

[0028] The contact points maintain constant pressure in the locked state, effectively reducing contact resistance and improving the long-term stability of the circuit connection.

[0029] Unlocking requires pressing the rectangular slider and involves two stages: the first stage applies pressure to push the conical head away from the latch block; the second stage, after release, causes the second reset spring to engage the conical head with the latch block again to complete the unlocking. This significantly improves the predictability of operation and avoids circuit disconnection due to accidental touch or slight pressure, making it particularly suitable for safety-sensitive scenarios. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the metal spring switch of the present invention;

[0031] Figure 2 This is a schematic diagram of the metal spring structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the metal spring structure of the present invention from another angle;

[0033] Figure 4 This is another angular structural diagram of the metal spring sheet structure of the present invention;

[0034] Figure 5 This is a schematic diagram of a state structure of the triggering component of the present invention;

[0035] Figure 6 This is a schematic diagram of another state structure of the triggering component of the present invention;

[0036] Figure 7 This is a schematic diagram of another state structure of the triggering component of the present invention;

[0037] Figure 8 This is a partial structural diagram of the triggering component of the present invention;

[0038] Figure 9 This is a schematic diagram of the push-button switch structure of the present invention;

[0039] Figure 10 This is a schematic diagram of the structure of the limiting component of the present invention;

[0040] The reference numerals in the attached figures are as follows:

[0041] 100 Metal spring switch, 10 Push-button switch structure, 101 Connecting base, 102 Push-button cylinder, 103 Button cover, 104 Switch button, 105 Washer, 106 Fifth return spring, 11 Limiting component, 111 Rocker arm, 112 Fixed axis, 113 Toggle lever, 114 First limiting member, 114A First guide plate, 114B Second guide plate, 115 Second limiting member, 115A First blocking plate, 115B Third guide plate, 115C Second blocking plate, 115D Fourth guide plate, 20 Metal spring structure, 201 Base, 202 203 Receiving seat, 204 Connecting arm, 204 Wiring thread, 205 Metal spring, 206 Extension piece, 208 First return spring, 209 Conductive contact, 21 Trigger assembly, 211 U-shaped slider, 212 Rectangular slider, 213 Slot, 214 Second return spring, 215 First buckle module, 216 Second buckle module, 215A Round rod, 215B Arc head, 215C Hollow cavity, 215D Conical head, 215E Conical cavity, 215G Limiting plate, 216A Buckle block, 216B Inclined surface, 216C Fourth return spring. Detailed Implementation

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0043] Example 1

[0044] Reference Figure 1 As shown, this embodiment proposes a metal spring switch 100, including a push-button switch structure 10 and a metal spring structure 20. The metal spring structure 20 is connected to a circuit, and the push-button switch structure 10 controls whether the metal spring structure 20 and the circuit are connected.

[0045] In this embodiment, refer to Figures 2 to 3As shown, this embodiment also proposes a metal spring structure 20 including a base 201, a receiving seat 202, and a connecting arm 203. The base 201 passes through the receiving member 202 via the connecting arm 203 and is snapped together with it.

[0046] The inner cavity of the receiving seat 202 has a wiring thread 204 and a metal spring 205, and the metal spring 205 is fixedly connected to the inner cavity of the receiving seat 202 through the wiring thread 204.

[0047] A trigger assembly 21 is provided in the middle of the receiving base 202, and extension pieces 206 are fixedly connected to both sides of the trigger assembly 21. The trigger assembly 21 can move up and down along the middle of the receiving base 202, and a first return spring 208 is provided at the bottom of the extension piece 206.

[0048] The extension piece 206 is horizontally fixedly connected to a conductive piece, and conductive contacts 209 are provided below both ends of the conductive piece. The top of the metal spring 205 is also provided with conductive contacts 209. Pressing down on the trigger assembly 21 causes it to move downward against the action of the first return spring 208, forcing the conductive contacts 209 below the conductive piece to contact the conductive contacts 209 at the top of the metal spring 205, forming a conductive path.

[0049] Furthermore, referring to Figures 4 to 8 As shown, the trigger assembly 21 includes a U-shaped slider 211, with a rectangular slider 212 slidably connected to the middle of the U-shaped slider 211. A slot 213 is provided on the outer side of the U-shaped slider 211 for connecting the extension piece 206. The top of the rectangular slider 212 is lower than the top of the U-shaped slider 211. The rectangular slider 212 is movable within the middle of the U-shaped slider 211, and a second return spring 214 is provided between the bottom of the rectangular slider 212 and the U-shaped slider 211.

[0050] The trigger assembly 21 also includes a first latch module 215 and a second latch module 216. The first latch module 215 is fixedly installed on the bottom of the rectangular slider 212, and the second latch module 216 is installed on both sides of the bottom of the receiving seat 202. The trigger assembly 21 is in the non-conductive state (refer to...). Figure 4 As shown), the first buckle module 215 is located above the second buckle module 216. In the on state, pressing down on the U-shaped slider 211 causes the first buckle module 215 to engage with the second buckle module 216, preventing the U-shaped slider 211 from resetting under the action of the first return spring 208.

[0051] The first latch module 215 uses an arc-shaped head 215B to engage with the inclined surface 216B of the latch block 216A of the second latch module 216 to achieve self-locking by pressing, and the tapered head 215D engages with the latch block 216A to achieve phased unlocking, effectively preventing the equipment from accidentally disconnecting or connecting due to vibration or accidental contact.

[0052] It should be noted that the first buckle module 215 includes a round rod 215A, with an arc-shaped head 215B at the end of the round rod 215A away from the rectangular slider 212. The round rod 215A has a hollow cavity 215C, and a conical head 215D is movably connected to it. The conical head 215D has two conical surfaces and is movable on the round rod 215A. A third return spring 215 is installed within the hollow cavity 215C to allow the conical head 215D to return to its original position.

[0053] One end of the arc-shaped head 215B is an arc-shaped surface, and the other end is a horizontal surface. A conical cavity 215E is provided on the horizontal surface of the arc-shaped head 215B. When the conical head 215D moves towards the arc-shaped head 215B, one side can be accommodated within the conical cavity 215E. A limiting disk 215G is also fixedly connected to the round rod 215A, which restricts the movement of the conical head 215D away from the arc-shaped head 215B.

[0054] Reference Figures 4 to 5 As shown, the second latch module 216 includes a latch block 216A, which is slidably connected to both sides of the bottom of the receiving seat 202. One end of the latch block 216A has a bevel 216B, and the other end of the latch block 216A is equipped with a fourth return spring 216C.

[0055] It should be noted that when the U-shaped slider 211 is pressed down, the U-shaped slider 211, the rectangular slider 212, and the first buckle module 215 form a whole and move downwards simultaneously. The arc-shaped surface of the arc-shaped head 215B can push the buckle block 216A open and lock the buckle block 216A at the horizontal plane of the arc-shaped head, thereby resetting the limiting slider 211, the rectangular slider 212, and the first buckle module 215 (see reference). Figure 5 (As shown in the diagram). Ensure the circuit connection is stable.

[0056] To unlock the circuit, press down on the rectangular slider 212. Pressing down on the rectangular slider 212 involves two stages. In the first stage, pressure is applied to move the rectangular slider 212 downwards, causing the tapered surface of the conical head 215D near the arc-shaped head 215B to push open the latch block 216A, positioning the latch block 216A on the tapered surface of the conical head 215D away from the arc-shaped head 215B (see reference). Figure 6(As shown in the diagram), no pressure is applied, and the second stage begins.

[0057] The rectangular slider 212 is reset under the action of the second reset spring 214. During the reset process, the horizontal surface of the latch block 216A pushes the conical head 215D so that its conical cavity 215E is located inside. At this time, the conical head 215D and the arc head 215B form a whole. The conical surface of the end of the conical head 215D away from the arc head 215B pushes the latch block 216A open and causes the arc head 215B to be released from the restriction of the latch block 216A. At this time, the circuit is disconnected.

[0058] Unlocking requires pressing down on the rectangular slider 212 and going through two stages. The first stage requires continuous pressure to push the conical head open the latch block and move it. The second stage, after releasing the pressure, relies on spring force to complete the final unlocking action. This significantly improves the intentionality of operation and effectively reduces the risk of accidental circuit disconnection due to unintentional touch or slight pressure.

[0059] In the second stage of unlocking, the rectangular slider 212 is reset by the elastic force of the second reset spring 214. During this process, the conical surface of the conical head 215D interacts with the horizontal surface of the latch block 216A, which can not only push the latch block open to release the lock, but also guide the arc-shaped head 215B to disengage smoothly, ensuring that the unlocking action is smooth and controllable, and avoiding jamming or impact.

[0060] In the ON (self-locking) state, the latch block 216A is engaged at the horizontal plane of the arc-shaped head 215B, providing a direct and rigid mechanical limit. This structure effectively resists the strong rebound force of the first return spring 208, ensuring that the U-shaped slider 211 and its connected extension piece 206 maintain an extremely stable position in the ON state, thereby guaranteeing the long-term stability of the circuit connection and low contact resistance.

[0061] In this embodiment, the circuit connection and disconnection are controlled in two independent parts. Specifically, when the circuit is connected, the U-shaped slider 211 needs to be pressed down; when the circuit is disconnected, the rectangular slider 212 needs to be pressed down. The operation is relatively cumbersome and prone to misoperation.

[0062] Therefore, the above problem is solved by the push-button switch structure 10.

[0063] Example 2

[0064] Based on the above embodiments, this embodiment further discloses the push-button switch structure 10.

[0065] Reference Figures 9 to 10 As shown, the push-button switch structure 10 includes a connecting base 101, a pressing cylinder 102, a button cover 103, and a switch button 104.

[0066] The connecting seat 101 is fixedly connected to the pressing cylinder 102, and the button cover 103 is threadedly connected to the top of the pressing cylinder 102. A gasket 105 is fixedly connected to the bottom of the pressing cylinder 102, and the switch button 104 slides through the gasket 105 and is slidably connected to the pressing cylinder 102. A fifth return spring 106 is provided between the switch button 104 and the pressing cylinder 102.

[0067] It should be noted that the connection seat 101 and the connection arm 203 cooperate with each other to ensure that the switch button 104 is always located at the top of the U-shaped slider 211.

[0068] Among them, exhibitors Figure 10 As shown, a limiting component 11 is installed on the outside of the switch button 104. The limiting component 11 controls the downward pressing stroke of the switch button 104 to push the U-shaped slider 211, so that the circuit can be simultaneously turned on and off by the same switch.

[0069] The limiting component 11 includes a swing arm 111, one end of which is set as a fixed axis 112. The swing arm 111 swings along the fixed axis 112 and a torsion spring is provided between them. A lever 113 is provided at the end of the swing arm 111 away from the fixed axis 112.

[0070] The limiting component 11 also includes a first limiting member 114 and a second limiting member 115. The first limiting member 114 is composed of a first guide piece 114A and a second guide piece 114B, and the second limiting member 115 is composed of a first blocking piece 115A, a third guide piece 115B, a second blocking piece 115C, and a fourth guide piece 115D.

[0071] The first guide piece 114A and the second guide piece 114B form an angle, and the third guide piece 115B and the fourth guide piece 115D are parallel to the first guide piece 114A and the second guide piece 114B, respectively. The first blocking piece 115A is higher than the second blocking piece 115C.

[0072] It should be noted that pressing down on the switch button 104 pushes the U-shaped slider 211, causing the lever 113 on the switch button 104 to pass over the first guide plate 114A and move downwards, ultimately being limited by the first blocking plate 115A. At this time, the trigger component 21 is in the conductive state (refer to...). Figure 5 (The state shown).

[0073] Without applying any external force, the switch button 104 is reset by the action of the fifth reset spring 106, and the lever 113 is locked between the first guide plate 114A and the second guide plate 114B.

[0074] When the circuit needs to be disconnected, press the switch button 104 down again, pushing the U-shaped slider 211. The lever 113 on the switch button 104 passes the second guide plate 114B and moves downward, finally being limited by the second blocking plate 115C. At this time, the trigger component 21 is in the first stage of disconnecting the circuit (see reference). Figure 6 (The state shown).

[0075] Finally, when no further external force is applied, lever 113 swings back to its original position under the action of the fifth reset spring 106 and the torsion spring. At this time, trigger assembly 21 is in the second stage of disconnecting the circuit (see reference). Figure 7 (The state shown).

[0076] Through the first limiting member 114 and the second limiting member 115 and their cooperation with the lever 113, this structure can precisely control the pressing stroke of the switch button 104, distinguishing and stabilizing it in two distinct working positions: "on" and "off". The first blocking plate 115A and the second blocking plate 115C provide clear and reliable physical stops, ensuring accurate switching of the switch state and providing intuitive feedback through different pressing depths.

[0077] The first limiting member 114 and the second limiting member 115 enforce the operating sequence. The lever 113 must first be pressed to the "on" position, passing the first guide plate 114A and being restricted by the first blocking plate 115A. After resetting, the lever 113 will be stuck between the first and second guide plates. When pressed again, it can only slide along the second guide plate 114B to the "off" position, where it is restricted by the second blocking plate 115C. This effectively prevents accidental operation, such as unpredictable states caused by continuous rapid pressing, and ensures that state switching strictly follows the predetermined logic of "on -> off" or "off -> on".

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A metal spring structure, comprising a base, a receiving seat, and a connecting arm, characterized in that, The inner cavity of the receiver has wiring threads and a metal spring, and a trigger assembly is provided in the middle of the receiver. The triggering component has extension plates fixedly connected to both sides, allowing it to move up and down along the center of the receiving base. A first return spring is provided at the bottom of each extension plate. The extension sheet is horizontally fixedly connected to a conductive sheet, and conductive contacts are provided at the bottom of both ends of the conductive sheet and at the top of the metal spring. The triggering component includes a U-shaped slider, a first buckle module, and a second buckle module. A rectangular slider is slidably connected to the middle of the U-shaped slider. The first buckle module is fixedly installed at the bottom of the rectangular slider. The second buckle module is installed on both sides of the bottom of the receiving seat. When the triggering component is not connected, the first buckle module is located above the second buckle module. In the conductive state, the first buckle module and the second buckle module cooperate to restrict the U-shaped slider from resetting.

2. The metal spring structure according to claim 1, characterized in that, The first buckle module includes a round rod, with an arc-shaped head at the end of the round rod away from the rectangular slider. The round rod has a hollow cavity, and a conical head is movably connected to the round rod. The conical head has two conical surfaces and can move on the round rod. A third return spring is installed in the hollow cavity to allow the conical head to return to its original position.

3. The metal spring structure according to claim 2, characterized in that, One end of the arc-shaped head is an arc-shaped surface, and the other end is a horizontal surface. A conical cavity is provided on the horizontal surface of the arc-shaped head. A limiting disc is also fixedly connected to the round rod, which is used to restrict the conical head from moving away from the arc-shaped head.

4. The metal spring structure according to claim 3, characterized in that, The second buckle module includes a buckle block that is slidably connected to both sides of the bottom of the receiving seat. One end of the buckle block has an inclined surface, and the other end of the buckle block is equipped with a fourth return spring.

5. The metal spring structure according to claim 4, characterized in that, When the circuit is on, press down on the U-shaped slider; when the circuit is off, press down on the rectangular slider.

6. The metal spring structure according to claim 5, characterized in that, The circuit disconnection process has two stages. The first stage requires continuous pressure to push the conical head open the latch block and move it. The second stage relies on the spring force to complete the unlocking action after the pressure is released.

7. A metal spring switch, comprising a push-button switch structure and a metal spring structure, characterized in that, The push-button switch structure includes a connecting base, a pressing cylinder, a button cover, and a switch button. The connecting seat is fixedly connected to the pressing cylinder, the button cap is threadedly connected to the top of the pressing cylinder, a washer is fixedly connected to the bottom of the pressing cylinder, the switch button slides through the washer and is slidably connected to the pressing cylinder, and a fifth return spring is provided between the switch button and the pressing cylinder. A limiting component is installed on the outside of the switch button, which controls the downward pressing stroke.

8. The metal spring switch according to claim 7, characterized in that, The limiting component includes a swing arm, one end of which is set as a fixed axis. The swing arm swings along the fixed axis and is provided with a torsion spring. A lever is provided at the end of the swing arm away from the fixed axis.

9. The metal spring switch according to claim 8, characterized in that, The limiting component further includes a first limiting member and a second limiting member. The first limiting member is composed of a first guide piece and a second guide piece, and the second limiting member is composed of a first blocking piece, a third guide piece, a second blocking piece, and a fourth guide piece.

10. The metal spring switch according to claim 9, characterized in that, The first guide plate and the second guide plate form an angle, the third guide plate and the fourth guide plate are parallel to the first guide plate and the second guide plate respectively, and the first blocking plate is higher than the second blocking plate.

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