Swing type microswitch

Abstract

The utility model discloses a swing type microswitch, relates to the technical field of electrical switches, and provides the following scheme aiming at the problems that an operator is easy to fatigue and even misoperation is possibly caused by human factors in an existing occasion of long-time continuous working or frequent switching operation. The device comprises a base, a contact elastic piece, a swing block, a rocking handle and an iron shell, the contact elastic piece is connected and installed in the base, the contact elastic piece adopts a heart-shaped design, the swing block is arranged at the upper end of the contact elastic piece, the rocking handle is connected to the middle of the upper portion of the swing block, and the iron shell is connected to the outer portion of the upper end of the base. According to the utility model, the structure is novel, the contact spring sheet can rapidly respond to the driving of the swing block, the reliable contact with the terminals is realized, the on-off control of the switch can be realized only by swinging the rocking handle, no complex operation steps are needed, the operation is simple, the operation is convenient, and the cost is low. And the use convenience of the switch is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical switches, in particular to a swing type micro switch. Background Art

[0002] In the fields of fire safety, testing instruments and medical equipment, which have extremely high performance and technical requirements, micro switches are key components for realizing circuit on-off control. The quality of their performance directly affects the working efficiency and safety of the overall equipment.

[0003] However, the operation process of existing micro switches is often not convenient enough, requiring a large force and precise positioning control. For situations where long-term continuous work or frequent switching operations occur, it is easy to cause operator fatigue, reduce work efficiency, and may even lead to misoperation due to human factors. Utility Model Content

[0004] The utility model provides a swing type micro switch, which solves the existing problems.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rocking micro switch, comprising a base, a contact spring, a swing block, a crank handle and an iron shell, the base is internally connected and installed with a contact spring, the contact spring adopts a heart-shaped design, and the upper end of the contact spring is provided with a swing block, the upper middle part of the swing block is connected with a crank handle, the upper end of the base is externally connected with an iron shell, the iron shell protects the electrical components inside the switch, the lower end of the base is provided with three terminals, and the crank handle realizes contact or disconnection with the terminals by swinging in coordination with the swing block and the contact spring.

[0006] Preferably, the base is a rectangular frame structure, and three terminals are connected to the lower end of the base at equal intervals, and the terminals are terminal 1, terminal 2 and terminal 3, respectively, and the terminals are injection-molded at the connection with the base.

[0007] Preferably, the contact spring piece is in a structure that is wide at the top and narrow at the bottom, and the upper end is connected to a swing block. The contact spring piece has good elasticity and conductivity, and the contact spring piece is driven according to the swing of the swing block.

[0008] Preferably, the swing block is a long flat plate structure, and the weights of both ends of the swing block are equal to maintain balance. An arc-shaped groove is opened in the middle of the swing block, and the arc-shaped groove is in contact with the crank.

[0009] Preferably, the crank is a conical swing mechanism, the lower end of the crank is connected with a cylinder, and the cylinder and the arc-shaped groove in the middle of the upper end of the swing block are matched and engaged with each other.

[0010] Preferably, the iron shell is in a long circular structure, and the two ends of the iron shell are snapped to the two sides of the base, a notch is opened in the middle of the upper end of the iron shell, and a crank passes through the inside of the notch.

[0011] Preferably, when the crank is swung to the left, terminal 1 and terminal 2 are connected; when the crank is swung to the right, terminal 2 and terminal 3 are connected.

[0012] The beneficial effects of the utility model are as follows: the device adopts a heart-shaped design through the contact spring piece, so that it has good elasticity and conductive properties, making the switch more stable and reliable during the swinging process; when the crank handle is swung to the left, the swing block drives the contact spring piece to deform, so that terminal 1 is connected with terminal 2; when the crank handle is swung to the right, the swing block drives the contact spring piece to deform, so that terminal 2 is connected with terminal 3; when the crank handle is released, due to the elastic restoring force of the contact spring piece, the switch rebounds to the middle position, and all terminals are disconnected. The contact spring piece can quickly respond to the drive of the swing block to achieve reliable contact with the terminals. The on-off control of the switch can be achieved by swinging the crank handle without complicated operating steps, thereby improving the convenience of using the switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the structural disassembly of the utility model.

[0015] Figure 3 It is a structural front view of the utility model.

[0016] Figure 4 This is a circuit working diagram of the utility model.

[0017] Numbers in the figure: 1, base; 2, contact spring; 3, swing block; 4, crank handle; 5, iron shell; 6, terminal; 601, terminal 1; 602, terminal 2; 603, terminal 3. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-Figure 4A swing type micro switch comprises a base 1, a contact spring 2, a swing block 3, a crank handle 4 and an iron shell 5. The contact spring 2 is connected and installed inside the base 1. The contact spring 2 adopts a heart-shaped design, and a swing block 3 is arranged on the upper end of the contact spring 2. The middle part above the swing block 3 is connected to the crank handle 4. The upper end of the base 1 is externally connected to the iron shell 5. The iron shell 5 protects the electrical components inside the switch. Three terminals 6 are arranged at the lower end of the base 1. The crank handle 4 realizes contact or disconnection with the terminal 6 by swinging to cooperate with the swing block 3 and the contact spring 2.

[0020] refer to Figure 2 , Figure 3 The base 1 is a rectangular frame structure, and three terminals 6 are connected at equal intervals at the lower end of the base 1. The terminals 6 are terminal 1601, terminal 2602 and terminal 3603. The terminals 6 are injection-molded at the connection with the base 1 to form a stable electrical connection to ensure the stability and reliability of the circuit. The base 1 has a protective function and can effectively prevent the external environment from damaging the electrical components inside the switch, thereby improving the service life of the switch. The contact spring 2 is a wide-upper-lower-narrow structure, and a swing block 3 is connected to the upper end. The contact spring 2 has good elasticity and conductive properties. The contact spring 2 is driven according to the swing of the swing block 3. The swing block 3 is a long flat plate structure, and the weights of the two ends of the swing block 3 are equal to maintain balance. An arc-shaped groove is provided in the middle of the moving block 3, and the arc-shaped groove is in contact with the crank 4. The crank 4 is a conical swinging mechanism. The lower end of the crank 4 is connected with a cylinder, and the cylinder and the arc-shaped groove in the middle of the upper end of the swing block 3 match and engage with each other. The iron shell 5 is a long circular structure, and the two ends of the iron shell 5 are snapped to the two sides of the base 1. A notch is provided in the middle of the upper end of the iron shell 5, and the crank 4 runs through the inside of the notch. By controlling the swinging direction of the crank 4, the movement of the swing block 3 can be driven, and the drive of the swing block 3 can be quickly responded to by the contact spring 2. When the crank 4 swings to the left, the terminal 1601 and the terminal 2602 are connected, and the crank 4 is released. Through the elastic restoring force of the contact spring 2, the switch rebounds to the middle position, and all terminals 6 are disconnected.

[0021] Working principle: First, when the crank 4 is turned to the left, it drives the swing block 3 to press down to one side, and the swing block 3 drives the contact spring 2 to deform, so that the contact point contacts the terminal 1601 and the terminal 2602, and the circuit is connected. When the crank 4 is turned to the right, it drives the swing block 3 to press down to the other side to drive the contact spring 2 to deform, so that the contact point contacts the terminal 2602 and the terminal 3603, and the circuit is connected. Finally, when the crank 4 is released, due to the elastic restoring force of the contact spring 2, the switch rebounds to the middle position, and the crank 4 will drive the contact spring 2 to disconnect from the terminal, and the circuit is cut off.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rocking micro switch, comprising a base (1), a contact spring (2), a rocking block (3), a rocking handle (4) and an iron shell (5), characterized in that: A contact spring (2) is installed and connected inside the base (1), the contact spring (2) is of heart-shaped design, and a swing block (3) is arranged at the upper end of the contact spring (2), and a crank (4) is connected to the upper middle part of the swing block (3). An iron shell (5) is externally connected to the upper end of the base (1), and the iron shell (5) protects the electrical components inside the switch. Three terminals (6) are arranged at the lower end of the base (1), and the crank (4) is connected to or disconnected from the terminals (6) by swinging to cooperate with the swing block (3) and the contact spring (2).

2. A rocking micro switch according to claim 1, characterized in that: The base (1) is a rectangular frame structure, and three terminals (6) are connected to the lower end of the base (1) at equal intervals, the terminals (6) are terminal 1 (601), terminal 2 (602) and terminal 3 (603), and the terminals (6) are injection-molded at the connection with the base (1).

3. A rocking micro switch according to claim 1, characterized in that: The contact spring (2) has a structure that is wide at the top and narrow at the bottom, and the upper end is connected to a swing block (3). The contact spring (2) has good elasticity and electrical conductivity, and the contact spring (2) is driven according to the swing of the swing block (3).

4. A rocking micro switch according to claim 1, characterized in that: The swing block (3) is a long flat plate structure, and the weights of the two ends of the swing block (3) are equal to maintain balance. An arc-shaped groove is provided in the middle of the swing block (3), and the arc-shaped groove is in contact with the crank (4).

5. A rocking micro switch according to claim 4, characterized in that: The rocker (4) is a conical swing mechanism, the lower end of the rocker (4) is connected to a cylinder, and the cylinder and the arc-shaped groove in the middle of the upper end of the swing block (3) are matched and engaged with each other.

6. A rocking micro switch according to claim 1, characterized in that: The iron shell (5) is in the form of a long circular structure, and the two ends of the iron shell (5) are snapped onto the two sides of the base (1). A notch is provided in the middle of the upper end of the iron shell (5), and a crank handle (4) passes through the interior of the notch.

7. A rocking micro switch according to claim 1, characterized in that When the crank (4) is swung to the left, terminal 1 (601) and terminal 2 (602) are connected; when the crank (4) is swung to the right, terminal 2 (602) and terminal 3 (603) are connected.

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