Handle switch

Abstract

The utility model discloses a handle switch, which comprises a handle shell, a button, an inner shell, a fork core, a static contact piece and a stud, the buttons comprise a first button and a second button; the two fork cores correspond to the first button and the second button in position, and the fork cores penetrate through the top of the inner shell. The bottom of the fork core is connected with a movable contact piece; the static contact piece comprises a first hook type static contact piece, a second hook type static contact piece, a first straight type static contact piece and a second straight type static contact piece. The first hook-shaped static contact piece and the second hook-shaped static contact piece are respectively arranged at one ends of the two movable contact pieces; the first straight static contact piece and the second straight static contact piece are arranged at the other ends of the two movable contact pieces in parallel; the first hook type static contact piece, the second hook type static contact piece, the first straight type static contact piece and the second straight type static contact piece are respectively connected with studs. The handle switch is high in safety and simple and convenient to install and operate.

Description

Technical Field

[0001] The utility model relates to the technical field of motor operation tools, and more specifically, to a handle switch. Background Art

[0002] A handle switch is an electrical product that can control the commutation or on / off of current. Generally, it realizes the on / off and commutation of current through manual control, and is widely used in electric vehicles, industrial vehicles, industrial power systems, etc.

[0003] The motor handle switch is mainly used to manually control the forward and reverse rotation of the motor. Generally, the wiring situation inside the handle is adjusted by pressing a button, and then the forward and reverse rotation of the motor is controlled. The existing handle switch has eight studs, and the motor and power supply are externally connected through the studs respectively. When the existing handle switch accidentally presses two buttons at the same time, a power short - circuit will occur; and during the assembly of the handle switch, the internal structure is prone to dislocation, increasing the assembly difficulty.

[0004] Therefore, it is an urgent problem for those skilled in the art to develop a handle switch with high safety and simple installation and operation. Summary of the Utility Model

[0005] In view of this, the utility model provides a handle switch with high safety and simple installation and operation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A handle switch, comprising:

[0008] A handle housing,

[0009] Buttons, the buttons are divided into a first button and a second button; both the first button and the second button are connected to the handle housing, and the tops of the first button and the second button are exposed outside the handle housing;

[0010] An inner housing, the inner housing is arranged inside the handle housing;

[0011] Fork cores, there are two fork cores, and they correspond to the positions of the first button and the second button. The fork cores penetrate through the top of the inner housing; a moving contact piece is connected to the bottom of the fork core;

[0012] Stationary contact pieces, the stationary contact pieces include: a first hook-shaped stationary contact piece, a second hook-shaped stationary contact piece, a first straight stationary contact piece, and a second straight stationary contact piece; the first hook-shaped stationary contact piece and the second hook-shaped stationary contact piece are respectively placed at one end of the two movable contact pieces; the first straight stationary contact piece and the second straight stationary contact piece are arranged in parallel at the other end of the two movable contact pieces; the two movable contact pieces are both placed between the first straight stationary contact piece and the second straight stationary contact piece;

[0013] A stud, the stud is connected to the bottom of the inner housing and extends into the interior of the inner housing; the first hook-shaped stationary contact piece, the second hook-shaped stationary contact piece, the first straight stationary contact piece, and the second straight stationary contact piece are respectively connected to the stud.

[0014] The beneficial effect of adopting the above technical solution is that in the present utility model, the arrangement of the first hook-shaped stationary contact piece, the second hook-shaped stationary contact piece, the first straight stationary contact piece, and the second straight stationary contact piece makes it so that when the first button and the second button are accidentally pressed simultaneously, neither the motor nor the power supply is turned on, without any safety hazards, and the safety and reliability can be effectively improved.

[0015] Preferably, the inner housing includes: a cover plate and a base; the cover plate is buckled on the top of the base. The separate setting of the cover plate and the base facilitates the installation of the devices inside it.

[0016] Preferably, the bottom of the fork core is provided with a groove that penetrates through both ends, the movable contact piece penetrates through the groove and is connected to the bottom of the groove.

[0017] Preferably, a pressure spring is arranged in the groove, and the bottom of the pressure spring presses against the movable contact piece. The pressure spring limits the position of the movable contact piece.

[0018] Preferably, a return spring is fixed to the bottom end of the fork core, and the bottom of the return spring is connected to the base. The return spring provides a reaction force that pushes the fork core upward after the fork core is pressed down, facilitating the reset of the fork core.

[0019] Preferably, a spring groove is arranged at the position of the base corresponding to the return spring, and the bottom of the return spring is placed in the spring groove. The spring groove can limit the connection position of the return spring and the base, making the installation position of the return spring more accurate.

[0020] Preferably, the moving contact piece extends into the hook-shaped cavities of the first hook-shaped static contact piece and the second hook-shaped static contact piece, and static contact points are provided on the side walls of the first hook-shaped static contact piece and the second hook-shaped static contact piece corresponding to the moving contact piece; static contact points are also provided on the side walls of the first straight-shaped static contact piece and the second straight-shaped static contact piece corresponding to the moving contact piece. The setting of the static contact points facilitates the contact between the moving contact piece and the static contact piece and conducts the current.

[0021] Preferably, four stud bolts are provided and are correspondingly connected to a power source and a motor through wires.

[0022] As can be seen from the above technical solutions, compared with the prior art, the present utility model discloses a handle switch, and its beneficial effects are as follows:

[0023] (1) In the present utility model, by pressing the first button and the second button separately, the forward or reverse rotation of the motor can be controlled. When the first button and the second button are pressed simultaneously, the power source and the motor are not conducted, which can improve safety.

[0024] (2) The first hook-shaped static contact piece, the second hook-shaped static contact piece, the first straight-shaped static contact piece, and the second straight-shaped static contact piece are respectively fixed to the base through stud bolts, which can realize the limit of the fork core. When the cover plate and the base are assembled and connected, the position of the fork core will not be affected, making the installation convenient and highly accurate. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0026] Figure 1 The drawing is a circuit connection diagram of the existing handle switch provided by the present utility model;

[0027] Figure 2 The drawing is a structural schematic diagram of the handle switch provided by the present utility model;

[0028] Figure 3 The drawing is an internal structural schematic diagram of the handle switch provided by the present utility model;

[0029] Figure 4 The drawing is a top view of the internal structure of the inner housing provided by the present utility model;

[0030] Figure 5 The drawing provided by the present utility model Figure 4Cross-sectional view taken along line A-A;

[0031] Figure 6 The accompanying drawing is a connection structure diagram of the moving contact piece and the static contact piece provided by the present utility model from one perspective;

[0032] Figure 7 The accompanying drawing is a connection structure diagram of the moving contact piece and the static contact piece provided by the present utility model from another perspective;

[0033] Figure 8 The accompanying drawing is a circuit connection diagram of the handle switch provided by the present utility model.

[0034] Among them, in the figure,

[0035] 1 - handle housing; 2 - first button; 3 - second button;

[0036] 4 - inner housing;

[0037] 41 - cover plate; 42 - base; 43 - spring groove;

[0038] 5 - fork core;

[0039] 51 - groove;

[0040] 6 - moving contact piece; 7 - first hook-shaped static contact piece; 8 - second hook-shaped static contact piece; 9 - first straight-shaped static contact piece; 10 - second straight-shaped static contact piece; 11 - stud; 12 - pressure spring; 13 - return spring; 14 - static contact point. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0042] The embodiments of the present utility model disclose a handle switch, including:

[0043] Handle housing 1,

[0044] Buttons, the buttons are divided into a first button 2 and a second button 3; both the first button 2 and the second button 3 are connected to the handle housing 1, and the tops of the first button 2 and the second button 3 are exposed outside the handle housing 1;

[0045] Inner housing 4, the inner housing 4 is arranged inside the handle housing 1;

[0046] The fork cores 5 are provided with two, corresponding to the positions of the first button 2 and the second button 3, and the fork cores 5 penetrate through the top of the inner housing 4; a moving contact piece 6 is connected to the bottom of the fork cores 5;

[0047] Stationary contact pieces, including: a first hook-shaped stationary contact piece 7, a second hook-shaped stationary contact piece 8, a first straight stationary contact piece 9, and a second straight stationary contact piece 10; the first hook-shaped stationary contact piece 7 and the second hook-shaped stationary contact piece 8 are respectively placed at one end of the two moving contact pieces 6; the first straight stationary contact piece 9 and the second straight stationary contact piece 10 are arranged in parallel at the other end of the two moving contact pieces 6; both of the two moving contact pieces 6 are placed between the first straight stationary contact piece 9 and the second straight stationary contact piece 10;

[0048] A stud 11 is connected to the bottom of the inner housing 4 and extends into the interior of the inner housing 4; the first hook-shaped stationary contact piece 7, the second hook-shaped stationary contact piece 8, the first straight stationary contact piece 9, and the second straight stationary contact piece 10 are respectively connected to the stud 11.

[0049] To further optimize the above technical solution, the inner housing 4 includes: a cover plate 41 and a base 42; the cover plate 41 is buckled on the top of the base 42. In the existing handle switch, the moving contact piece directly contacts the stud. During installation, after installing the fork core and the return spring, the base needs to be inverted on the cover plate and then fixed to the cover plate. However, this is likely to cause misalignment when buckling the base with the return spring and the fork core, making the operation inconvenient. In the present utility model, the fork core 5 is limited within the base 42 by connecting the fork core 5 to the stud 11 through the first hook-shaped stationary contact piece 7, the second hook-shaped stationary contact piece 8, the first straight stationary contact piece 9, and the second straight stationary contact piece 10. During installation, as long as the cover plate 41 is buckled on the base 42 and fixed, the operation is made simpler and the installation accuracy is higher.

[0050] To further optimize the above technical solution, a groove 51 with both ends penetrating is provided at the bottom of the fork core 5, the moving contact piece 6 penetrates through the groove 51 and is connected to the bottom of the groove 51.

[0051] To further optimize the above technical solution, a pressure spring 12 is arranged in the groove 51, and the bottom of the pressure spring 12 presses against the moving contact piece 6.

[0052] To further optimize the above technical solution, a return spring 13 is fixed to the bottom end of the fork core 5, and the bottom of the return spring 13 is connected to the base 42.

[0053] To further optimize the above technical solution, a spring groove 43 is provided at the position of the base corresponding to the return spring 13, and the bottom of the return spring 13 is placed in the spring groove 43.

[0054] To further optimize the above technical solution, the movable contact piece 6 extends into the hook-shaped cavities of the first hook-shaped static contact piece 7 and the second hook-shaped static contact piece 8. Static contact points 14 are provided on the side walls of the first hook-shaped static contact piece 7 and the second hook-shaped static contact piece 8 corresponding to the movable contact piece 6; static contact points 14 are provided on the side walls of the first straight static contact piece 9 and the second straight static contact piece 10 corresponding to the movable contact piece 6.

[0055] To further optimize the above technical solution, four stud bolts 11 are provided and are correspondingly connected to a power source and a motor through wires.

[0056] Working principle:

[0057] As Figure 8 shown, when the switch presses the second button 3, the current flows out from the positive pole of the power source, passes through the "B+" terminal and flows to the "M2" terminal to enter the motor M. After passing through the motor M, the current flows to the "M1" terminal (the first button 2 is not pressed, and at this time M1 and B- are in a conducting state), and then flows to the "B-" terminal to enter the negative pole of the power source. At this time, the motor starts to rotate in reverse. When the second button 3 is released and the first button 2 is pressed, the motor rotates forward.

[0058] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.

[0059] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A handle switch, characterized in that: include: Handle housing (1), buttons, the buttons being divided into a first button (2) and a second button (3); the first button (2) and the second button (3) are both connected to the handle housing (1), and the tops of the first button (2) and the second button (3) are exposed outside the handle housing (1); An inner shell (4), the inner shell (4) being arranged inside the handle outer shell (1); fork cores (5), two fork cores (5) are provided and correspond to the positions of the first button (2) and the second button (3), and the fork cores (5) penetrate the top of the inner shell (4); the bottom of the fork core (5) is connected to a moving contact piece (6); A static contact piece, the static contact piece comprising: a first curved hook-shaped static contact piece (7), a second curved hook-shaped static contact piece (8), a first straight static contact piece (9) and a second straight static contact piece (10); the first curved hook-shaped static contact piece (7) and the second curved hook-shaped static contact piece (8) are respectively arranged at one end of the two dynamic contact pieces (6); the first straight static contact piece (9) and the second straight static contact piece (10) are arranged in parallel at the other ends of the two dynamic contact pieces (6); the two dynamic contact pieces (6) are both arranged between the first straight static contact piece (9) and the second straight static contact piece (10); A stud (11), wherein the stud (11) is connected to the bottom of the inner shell (4) and extends into the interior of the inner shell (4); the first curved hook-shaped static contact piece (7), the second curved hook-shaped static contact piece (8), the first straight static contact piece (9) and the second straight static contact piece (10) are respectively connected to the stud (11).

2. A handle switch according to claim 1, characterized in that: The inner shell (4) comprises: a cover plate (41) and a base (42); the cover plate (41) is buckled on the top of the base (42).

3. A handle switch according to claim 2, characterized in that: The bottom of the fork core (5) is provided with a groove (51) with two ends penetrating therethrough, and the movable contact piece (6) passes through the groove (51) and is connected to the bottom of the groove (51).

4. A handle switch according to claim 3, characterized in that: A pressure spring (12) is arranged in the groove (51), and the bottom of the pressure spring (12) presses the movable contact piece (6).

5. A handle switch according to claim 2, characterized in that: A return spring (13) is fixed to the bottom end of the fork core (5), and the bottom of the return spring (13) is connected to the base (42).

6. A handle switch according to claim 5, characterized in that: A spring groove (43) is provided at a position of the base corresponding to the return spring (13), and the bottom of the return spring (13) is placed in the spring groove (43).

7. A handle switch according to claim 1, characterized in that: The moving contact piece (6) extends into the hook-shaped cavity of the first curved hook-shaped static contact piece (7) and the second curved hook-shaped static contact piece (8); static contacts (14) are arranged on the side walls corresponding to the moving contact piece (6) of the first curved hook-shaped static contact piece (7) and the second curved hook-shaped static contact piece (8); static contacts (14) are arranged on the side walls corresponding to the moving contact piece (6) of the first straight static contact piece (9) and the second straight static contact piece (10).

8. A handle switch according to claim 1, characterized in that: Four studs (11) are provided and are connected to the power source and the motor via wires.

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