Single support safety switch

Abstract

The utility model relates to a single support safety switch, which comprises a support, a hollow rotating member and a switch assembly, the support is provided with a positioning hole, the hollow rotating member is positioned and rotatably matched in the positioning hole, and the switch assembly comprises a movable contact member which is arranged on the hollow rotating member and rotates along with the hollow rotating member. The plurality of static conducting strips are annularly distributed in the positioning hole, pin pieces for connecting wires extend from the static conducting strips, and movable contacts which are correspondingly matched with the static conducting strips to realize on-off control between the corresponding static conducting strips are arranged on the movable contact piece. The mechanical type single-support safety switch can be directly controlled in an on-off mode, and large current can pass through the mechanical type single-support safety switch.

Description

Technical Field

[0001] The utility model relates to a switch, more specifically a single-support safety switch. Background Art

[0002] When a driver is using a motorcycle or electric assisted bicycle, if the vehicle's side kick is not retracted in time, a traffic accident may occur. Therefore, some motorcycles or electric assisted bicycles are currently equipped with side kick safety switches to remind users to pay attention to the side kick retraction and extension status. Existing side kick safety switches are all electronic (using magnetic induction), such as the technical solutions disclosed in patent numbers CN 201922008966.0 and CN 201620738457.7. The electronic side kick safety switch outputs a micro-current signal and requires a power supply end, which limits the application of the side kick safety switch. Summary of the invention

[0003] The purpose of the utility model invention: to overcome the defects of the prior art, the utility model provides a mechanical single-bracing safety switch, which realizes direct on-off control and can allow large current to pass through.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A single-support safety switch comprises a bracket, a hollow rotating member and a switch assembly, wherein a positioning hole is provided on the bracket, and the hollow rotating member is positioned and rotated in the positioning hole, and the switch assembly comprises a moving contact member provided on the hollow rotating member and rotating with the hollow rotating member, and a plurality of static conductive sheets distributed in a ring shape in the positioning hole, wherein the static conductive sheets are extended with pin sheets for connecting wires, and the moving contact member is provided with a moving contact point corresponding to the static conductive sheets to realize on-off control between the corresponding static conductive sheets.

[0006] Preferably, an upper waterproof ring and a lower waterproof ring are respectively fixed at the two ends of the positioning hole, and the inner circumferential side of the upper waterproof ring and the inner circumferential side of the lower waterproof ring are provided with contact sealing lips, and the contact sealing lips of the upper waterproof ring and the contact sealing lips of the lower waterproof ring are both in contact and sealing cooperation with the outer circumferential surface of the hollow rotating component.

[0007] Preferably, the positioning hole is step-shaped, and the positioning hole has an assembly opening and an annular bottom corresponding to the assembly opening. The upper waterproof ring is arranged in the assembly opening, and an anti-friction gasket located at the bottom of the upper waterproof ring is also fixed in the assembly opening. The static conductive sheet is arranged on the bottom of the positioning hole, and the hollow rotating member has a disc-shaped portion. The moving contact is arranged on the disc-shaped portion, one end of the disc-shaped portion cooperates with the bottom limit of the positioning hole, and the other end of the disc-shaped portion cooperates with the anti-friction gasket limit.

[0008] Preferably, the upper waterproof ring includes an annular body for supporting the contact sealing lip, the annular body is U-shaped, the annular body includes an annular base, an outer ring and an inner ring are extended from one axial end of the annular base, and the contact sealing lip is arranged on the inner circumferential surface of the inner ring.

[0009] Preferably, an installation step is provided in the middle of the assembly port, the anti-friction gasket is supported on the installation step, the upper waterproof ring is supported on the anti-friction ring, the port of the assembly port has a fixed skirt that is radially flipped inward, and a card-mounting space for the upper waterproof ring to be inserted is formed between the fixed skirt and the installation step, and the outer ring passes over the fixed skirt after elastic deformation and is inserted into the card-mounting space.

[0010] Preferably, the moving contact comprises an arc-shaped conductive sheet, on which the moving contact protrudes, and the arc-shaped conductive sheet is configured to be arranged on the disc-shaped portion so as to be floatable along the axial direction of the disc-shaped portion, and a resistance spring is installed on the disc-shaped portion, and the resistance spring abuts against the arc-shaped conductive sheet to form an elastic contact pressure of the moving contact on the static conductive sheet.

[0011] Preferably, a mounting pin is folded on the arc-shaped power transmission sheet, a limiting hook is formed on the end of the mounting pin, a step-shaped hanging hole is provided on the disc-shaped portion, a limiting hanging step surface is provided in the hanging hole, the mounting pin is inserted into the hanging hole, and the arc-shaped power transmission sheet is floatingly set on the disc-shaped portion through the limiting hook and the limiting hanging step surface stop and limit cooperation.

[0012] Preferably, the hollow rotating member comprises a hollow main rotating shaft and an annular moving contact seat constituting the disc-shaped portion, and the main rotating shaft is inserted into a central hole of the annular moving contact seat and circumferentially linked with the annular moving contact seat.

[0013] Preferably, the bracket includes an outer shell and an inner lining buried in the outer shell, and the static conductive sheet is embedded in the inner lining.

[0014] By adopting the above technical solution, the single-support safety switch is a mechanical switch. The hollow rotating component rotates, thereby driving the moving contact. The moving contact on the moving contact contacts the corresponding static conductive sheet to realize circuit on-off control. The single-support safety switch realizes direct on-off control of the circuit and allows large current to pass through, thereby expanding the application scenarios of the single-support safety switch and meeting market demand.

[0015] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the single-support safety switch of the utility model;

[0017] Figure 2 for Figure 1 Sectional view along AA in the middle;

[0018] Figure 3 This is an exploded view of the single-support safety switch of the utility model;

[0019] Figure 4 This is an exploded view of the bracket part of the utility model;

[0020] Figure 5 This is a schematic diagram of the coordination of the switch assembly of the utility model;

[0021] Figure 6 It is an exploded view of the hollow rotating component of the utility model. DETAILED DESCRIPTION

[0022] See attached Figures 1 to 6 The utility model discloses a single-support safety switch, comprising a bracket 1, a hollow rotating member 2 and a switch assembly 3. The bracket 1 is provided with a positioning hole 11, and the hollow rotating member 2 is positioned and rotated in the positioning hole 11. The switch assembly 3 comprises a moving contact 31 arranged on the hollow rotating member 2 and rotating with the hollow rotating member 2, and a plurality of static conductive sheets 32 distributed in a ring shape in the positioning hole 11. The static conductive sheets 32 extend with pin sheets 321 for connecting wires. The moving contact 31 is provided with a moving contact point 311 corresponding to the static conductive sheets 32 to realize the on-off control between the corresponding static conductive sheets 32. The moving contact is directly controlled to rotate, so as to achieve the on-off of the static conductive sheets in the corresponding circuit, thereby realizing the output of the switch signal. The switch assembly is mechanical, and compared with the traditional magnetic induction switch, it can directly supply large current without the need for an additional power supply terminal.

[0023] In order to improve the safety of the switch, an upper waterproof ring 4 and a lower waterproof ring 5 are respectively fixed to the two ends of the positioning hole 11, and contact sealing lips 41 and 51 are provided on the inner circumference of the upper waterproof ring 4 and the inner circumference of the lower waterproof ring 5, and the contact sealing lips 41 and 51 of the upper waterproof ring 4 and the lower waterproof ring 5 are both in contact and sealing cooperation with the outer circumference of the hollow rotating member 2. A waterproof sealing design inside the switch is realized, and the safety of the switch is improved.

[0024] The positioning hole 11 is stepped, and the positioning hole 11 has an assembly opening and an annular bottom 111 corresponding to the assembly opening. The upper waterproof ring 4 is arranged in the assembly opening, and an anti-friction washer 6 located at the bottom of the upper waterproof ring 4 is also fixed in the assembly opening. The static conductive sheet 32 ​​is arranged on the bottom 111 of the positioning hole 11. The hollow rotating member 2 has a disc-shaped portion 21, and the dynamic contact 31 is arranged on the disc-shaped portion 21. One end of the disc-shaped portion 21 is limitedly matched with the bottom 111 of the positioning hole 11, and the other end of the disc-shaped portion 21 is limitedly matched with the anti-friction washer 6. The hollow rotating member is axially limited on the bracket through the anti-friction washer and the step surface. The above structure has a compact structure and is convenient for the installation and matching of the static conductive sheet and the dynamic contact.

[0025] In order to improve the sealing reliability, the upper waterproof ring 4 includes an annular body 42 for carrying the contact sealing lip 41. The annular body 42 is U-shaped and includes an annular base 421. An outer ring 422 and an inner ring 423 extend from one axial end of the annular base 421. The contact sealing lip 41 is arranged on the inner circumferential surface of the inner ring 423. The inner ring 423 makes the contact sealing lip have better contact sealing elasticity. Figure 2 As shown, a mounting step 112 is also provided on the inner circumferential wall of the positioning hole 11, the anti-friction gasket 6 is supported on the mounting step 112, the upper waterproof ring 4 is pressed onto the anti-friction gasket 6, and the port of the assembly port has a fixed skirt 113 that is radially flipped inward, and a card-mounting space for the upper waterproof ring 4 to be inserted is formed between the fixed skirt 113 and the mounting step 112, and the outer ring 423 passes over the fixed skirt 113 after elastic deformation and is inserted into the card-mounting space.

[0026] The hollow rotating member 2 includes a hollow main rotating shaft 2-1 and an annular moving contact seat 2-2 constituting the disc-shaped portion 21. The main rotating shaft 2-1 is inserted into the center hole of the annular moving contact seat 2-2 and is circumferentially linked with the annular moving contact seat 2-2. The center hole of the annular moving contact seat 2-2 adopts a non-circular hole design, such as a notch shape. The main rotating shaft 2-1 is provided with a notch-shaped shaft portion 2-11 adapted to the notch-shaped hole, so that after the main rotating shaft 2-1 is inserted into the annular moving contact seat 2-2, the annular moving contact seat 2-2 is driven to rotate by the main rotating shaft 2-1. The hollow rotating member 2 adopts an assembled form, such as realizing a more convenient and reliable installation of the moving contact on the moving contact seat, the main rotating shaft can be removed independently without affecting the switch assembly, etc., which is convenient for processing, installation and maintenance. The upper waterproof ring 4 and the lower waterproof ring 5 are in contact and sealed cooperation with the axial surface of the main rotating shaft 2-1.

[0027] The moving contact 31 includes an arc-shaped conductive sheet 312, on which the moving contact 311 is protruded. The arc-shaped conductive sheet 312 is configured to be arranged on the disc-shaped portion 21 in a floating manner along the axial direction of the disc-shaped portion 21. A resisting spring 33 is installed on the disc-shaped portion 21, and the resisting spring 33 is in contact with the arc-shaped conductive sheet 312 to form the moving contact 311 elastically contacting and pressing the static conductive sheet 32. A spring hole is provided on the disc-shaped portion 21, and the resisting spring 33 is inserted into the spring hole. The moving contact on the arc-shaped conductive sheet and the static contact are in elastic contact, which ensures the reliability of the contact and makes the rotation of the moving contact smoother and more reliable. In order to facilitate the installation of the arc-shaped power transmission sheet, the arc-shaped power transmission sheet 312 is folded to form a plurality of mounting pins 313, and the end of the mounting pin 313 is formed with a limit hook 3131, and a step-shaped hanging hole 211 is provided on the disc-shaped part 21, and a limit hanging step surface is provided in the hanging hole 211, and the mounting pin 313 is inserted into the hanging hole 211, and the limit hook 3131 and the limit hanging step surface are stopped and limited to form the arc-shaped power transmission sheet 312 floatingly arranged on the disc-shaped part 21. The installation structure of the arc-shaped power transmission sheet is simple and easy to install.

[0028] In this specific embodiment, the bracket 1 includes an outer shell 1-1 and an inner lining 1-2 embedded in the outer shell 1-1, and the static conductive sheet 32 ​​is embedded in the inner lining 1-2. The static conductive sheet is pre-fixed on the inner lining and then combined with the outer shell for easy processing.

Claims

1. A single-support safety switch, comprising a bracket, a hollow rotating member and a switch assembly, wherein the bracket is provided with a positioning hole, and the hollow rotating member is positioned and rotated in the positioning hole, characterized in that: The switch assembly includes a moving contact piece arranged on a hollow rotating component and rotating with the hollow rotating component, and a plurality of static conductive sheets distributed in a ring shape in a positioning hole. The static conductive sheets are extended with pin sheets for connecting wires. The moving contact piece is provided with a moving contact point that corresponds to the static conductive sheets to realize on-off control between the corresponding static conductive sheets.

2. The single support safety switch according to claim 1, characterized in that: An upper waterproof ring and a lower waterproof ring are respectively fixed at the two ends of the positioning hole, and contact sealing lips are provided on the inner circumferential side of the upper waterproof ring and the inner circumferential side of the lower waterproof ring. The contact sealing lips of the upper waterproof ring and the contact sealing lips of the lower waterproof ring are both in contact and sealing cooperation with the outer circumferential surface of the hollow rotating component.

3. The single support safety switch according to claim 2, characterized in that: The positioning hole is step-shaped, and has an assembly opening and an annular bottom corresponding to the assembly opening. The upper waterproof ring is arranged in the assembly opening, and an anti-friction gasket located at the bottom of the upper waterproof ring is also fixed in the assembly opening. The static conductive sheet is arranged on the bottom of the positioning hole, and the hollow rotating component has a disc-shaped portion. The moving contact is arranged on the disc-shaped portion. One end of the disc-shaped portion cooperates with the bottom limit of the positioning hole, and the other end of the disc-shaped portion cooperates with the anti-friction gasket limit.

4. The single support safety switch according to claim 2, characterized in that: The upper waterproof ring includes an annular body for carrying the contact sealing lip, the annular body is U-shaped, and the annular body includes an annular base. An outer ring and an inner ring spaced radially are extended from one axial end of the annular base, and the contact sealing lip is arranged on the inner circumferential surface of the inner ring.

5. The single support safety switch according to claim 3, characterized in that: An installation step is provided in the middle of the assembly port, the anti-friction gasket is supported on the installation step, the upper waterproof ring is supported on the anti-friction ring, the port of the assembly port has a fixed skirt that is radially flipped inward, and a card-mounting space is formed between the fixed skirt and the installation step for the upper waterproof ring to be inserted into. After elastic deformation, the outer ring passes over the fixed skirt and is inserted into the card-mounting space.

6. The single support safety switch according to claim 3, characterized in that: The moving contact member includes an arc-shaped conductive sheet, on which the moving contact point is protruding. The arc-shaped conductive sheet is configured to be arranged on the disc-shaped portion so as to be floatable along the axial direction of the disc-shaped portion. A resisting spring is installed on the disc-shaped portion, and the resisting spring is in contact with the arc-shaped conductive sheet to form an elastic contact pressure of the moving contact point on the static conductive sheet.

7. The single support safety switch according to claim 6, characterized in that: A mounting pin is folded on the arc-shaped power transmission sheet, and a limit hook is formed on the end of the mounting pin. A step-shaped hanging hole is provided on the disc-shaped portion, and a limit hanging step surface is provided in the hanging hole. The mounting pin is inserted into the hanging hole, and the limit hook and the limit hanging step surface are stopped and limited to form the arc-shaped power transmission sheet floatingly set on the disc-shaped portion.

8. The single support safety switch according to claim 3, characterized in that: The hollow rotating component comprises a hollow main rotating shaft and an annular moving contact seat constituting the disc-shaped portion. The main rotating shaft is inserted into the central hole of the annular moving contact seat and circumferentially linked with the annular moving contact seat.

9. The single support safety switch according to claim 1, characterized in that: The bracket comprises an outer shell and an inner liner buried in the outer shell, and the static conductive sheet is embedded in the inner liner.

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