A micro switch auxiliary trigger device

Abstract

The utility model relates to the technical field of micro switches, and specifically is a micro switch auxiliary trigger device. The utility model comprises a base, a pressure cover is clamped on the upper end of the base, operation ports are penetrated through the middle of the base and the pressure cover, multiple groups of accommodating cavities are jointly provided between the base and the pressure cover, a push rod is slidably connected between the base and the pressure cover, a socket is penetrated through the middle of the push rod, a shaft body is inserted in the socket, the shaft body penetrates the two groups of operation ports, trapezoidal ports are symmetrically provided on the side of the push rod, and elastic components are fixedly connected at both ends of the push rod; the push rod is controlled to slide by the shaft body, and multiple groups of micro switches are triggered at the same time, so that the multiple groups of micro switches are synchronously actuated, thereby improving the stability and synchronization of the switches, and the shell (base and pressure cover) are all molded with plastic, which isolates the micro switches from sheet metal parts, and improves the overall dielectric performance of the switch, and the shell and the micro switch can be assembled in an integrated manner, so that the assembly steps are simplified and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of micro switches, in particular to an auxiliary trigger device for a micro switch. Background Art

[0002] A micro switch is a switch with a small contact spacing and a snap-action mechanism. It is a contact mechanism that performs switching actions with a specified stroke and a specified force. It is covered with a shell and has a driving rod on the outside. Because the contact spacing of the switch is relatively small, it is called a micro switch, also known as a sensitive switch.

[0003] The existing micro switch trigger device, for example, the micro switch trigger mechanism proposed in patent application number "CN202122065709.8", uses structures such as a spring, a slider, a fixing pin, and a base. The slider triggers the micro switch under the action of the restoring force of the spring, and the micro switch is fixed by screws and a fixing pin baffle.

[0004] In the prior art, for example, a micro switch trigger mechanism proposed in patent application number "CN202122065709.8", the micro switch is fixed by screws and fixing pin baffles. When the micro switch is fixed to various sheet metal parts, it is affected by multiple unfavorable factors such as the small size and high precision of the micro switch itself, the welding feet are close to the mounting surface, and the torque adjustment of the electric screwdriver used by the assembly operator is inaccurate. The micro switch is often pressed too tight, causing the internal contacts of the micro switch to fail to switch normally, resulting in switch failure and unusability. On the other hand, the welding feet of the micro switch are easily affected by the proficiency of the operator, resulting in excessive solder and direct proximity to the sheet metal, resulting in the switch's power frequency withstand voltage failure or even a leakage accident. In addition, the micro switch triggering form is a single trigger, which is not efficient. Therefore, an auxiliary trigger device for a micro switch is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a micro switch auxiliary trigger device to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A micro switch auxiliary trigger device comprises a base, a pressure cover is clamped on the upper end of the base, operation ports are opened through the middle of the base and the pressure cover, multiple groups of accommodating cavities are opened between the base and the pressure cover, a push rod is slidably connected between the base and the pressure cover, a socket is opened through the middle of the push rod, a shaft body is inserted in the socket, the shaft body passes through the two groups of operation ports, trapezoidal ports are symmetrically opened on the side of the push rod, elastic components are fixedly connected at both ends of the push rod, and the two groups of elastic components are slidably connected between the base and the pressure cover.

[0008] Preferably, multiple groups of the accommodating cavities are fixedly connected with limit columns and card plates, the card plates are located on one side of the limit columns, the limit columns and card plates are used to fix the micro switches, the middle part of the base is fixedly connected with a guide frame, the middle part of the pressure cover is fixedly connected with a guide column, and the guide column and the guide frame are plug-fitted.

[0009] Preferably, both ends of the base are fixedly connected with guide ends, both ends of the pressure cover are fixedly connected with pressure plates, the pressure plates and the guide ends cooperate, and the ends of the two groups of elastic components are respectively located in the two groups of guide ends.

[0010] Preferably, the elastic component includes a column, which is fixed to the end of the push rod and slidably connected between the guide end and the pressure plate. A spring is sleeved on the side wall of the column, one end of the spring is fixed to the end of the push rod, and the other end is located on the side of the guide end.

[0011] Preferably, the base and the gland are both fixedly connected to the limiting frame, and the two sides of the top rod are fixedly connected to the boss, which is slidably connected to the limiting frame.

[0012] Preferably, the side wall of the base is fixedly connected with a buckle point, and the side wall of the pressure cover is fixedly connected with a buckle foot, and the buckle foot and the buckle point are snap-fitted.

[0013] Beneficial effects of the utility model:

[0014] The utility model controls the sliding of the push rod through the shaft body, so that the multiple sets of trapezoidal openings squeeze the contacts of the multiple sets of micro switches at the same time, and trigger the multiple sets of micro switches at the same time, so that the multiple sets of micro switches act synchronously, thereby improving the stability and synchronization of the switches. Moreover, the housing (base and pressure cover) are all molded with plastic, which isolates the micro switches from sheet metal parts and improves the overall dielectric performance of the switch. At the same time, the housing and the micro switches can be assembled in an integrated manner, so that the assembly steps are simplified and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the base of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the micro switch of the utility model;

[0019] Figure 4 This is a schematic diagram of the gland structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the top rod of the utility model;

[0021] Figure 6 This is a schematic diagram of the base mechanism structure of the utility model;

[0022] The reference numerals in the figures are as follows:

[0023] 1. Base; 2. Pressure cover; 3. Operating port; 4. Axis; 5. Buckle point; 6. Buckle foot; 7. Guide end; 8. Limit frame; 9. Clamping plate; 10. Limit column; 11. Accommodating cavity; 12. Guide frame; 13. Guide column; 14. Pressure plate; 15. Push rod; 16. Socket; 17. Column; 18. Spring; 19. Boss; 20. Trapezoidal opening. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] A micro switch auxiliary trigger device comprises a base 1, a pressure cover 2 is clamped on the upper end of the base 1, an operation port 3 is opened through the middle of the base 1 and the pressure cover 2, a plurality of accommodating cavities 11 are opened between the base 1 and the pressure cover 2, a push rod 15 is slidably connected between the base 1 and the pressure cover 2, a socket 16 is opened through the middle of the push rod 15, a shaft body 4 is inserted in the socket 16, the shaft body 4 passes through the two groups of operation ports 3, trapezoidal ports 20 are symmetrically opened on the side of the push rod 15, elastic components are fixedly connected at both ends of the push rod 15, and the two groups of elastic components are slidably connected between the base 1 and the pressure cover 2.

[0026] like Figure 1-Figure 6As shown, by installing multiple groups of micro switches in the accommodating cavity 11, the contacts of the multiple groups of micro switches are all located in the rectangular opening of the push rod 15, the base 1 and the pressure cover 2 are interlocked with each other, and the multiple groups of micro switches are stuck in the middle to prevent movement. By sliding the shaft body 4, the shaft body 4 is squeezed into the inside of the socket 16 to control the sliding of the push rod 15. When the push rod 15 slides to one side, the inclined surface of the trapezoidal opening 20 will squeeze the contacts of the micro switches, and multiple groups of trapezoidal openings 20 will be set on one side of the push rod 15. The multiple groups of trapezoidal openings 20 will trigger the multiple groups of micro switches at the same time, so that the multiple groups of micro switches can be operated synchronously, and the elastic component will facilitate the resetting of the push rod 15. The device improves the stability and synchronization of the switch, and the shell (base 1 and pressure cover 2) are all molded with plastic, which isolates the micro switch from the sheet metal and improves the overall dielectric properties of the switch. At the same time, the shell and the micro switch can be assembled in one piece, which simplifies the assembly steps and improves production efficiency.

[0027] The plurality of accommodating cavities 11 are fixedly connected with limit columns 10 and card plates 9. The card plates 9 are located on one side of the limit columns 10. The limit columns 10 and card plates 9 are used to fix the micro switches. A guide frame 12 is fixedly connected to the middle of the base 1. A guide column 13 is fixedly connected to the middle of the pressure cover 2. The guide column 13 and the guide frame 12 are plugged together.

[0028] like Figure 2-Figure 4 , Figure 5 As shown, the limiting column 10 and the clamping plate 9 are used to clamp the micro switch in the accommodating cavity 11, and the guide frame 12 and the guide column 13 are plugged in, so as to facilitate the alignment and clamping of the base 1 and the pressure cover 2.

[0029] Both ends of the base 1 are fixedly connected with guide ends 7 , and both ends of the pressure cover 2 are fixedly connected with pressure plates 14 . The pressure plates 14 cooperate with the guide ends 7 , and the ends of the two groups of elastic components are respectively located in the two groups of guide ends 7 .

[0030] like Figure 1-Figure 4 As shown, when the base 1 and the pressure cover 2 are buckled together, the guide end 7 and the pressure plate 14 are also buckled together to form a slideway, which facilitates the end of the elastic component to slide in the slideway.

[0031] The elastic component includes a column 17, which is fixed to the end of the push rod 15, and the end of the column 17 is slidably connected between the guide end 7 and the pressure plate 14. The side wall of the column 17 is sleeved with a spring 18, one end of the spring 18 is fixed to the end of the push rod 15, and the other end is located on the side of the guide end 7.

[0032] like Figure 2-Figure 3 As shown, when the shaft body 4 drives the push rod 15 to slide, the end of the column 17 slides in the guide end 7, and the spring 18 does not enter the guide end 7. Therefore, the sliding of the column 17 will cause the spring 18 to be squeezed. When the shaft body 4 is reset, the spring 18 will react to cause the column 17 and the push rod 15 to reset, and the elastic component facilitates the control of the micro switch to close.

[0033] The base 1 and the gland 2 are both fixedly connected to the limiting frame 8 , and bosses 19 are fixedly connected to both sides of the push rod 15 , and the bosses 19 are slidably connected in the limiting frame 8 .

[0034] like Figure 4-Figure 6 As shown, when the push rod 15 slides, the boss 19 will slide in the limit frame 8. There are bosses 19 on both sides of the push rod 15, and there are limit frames 8 in the pressure cover 2 and the base 1, so that the push rod 15 can slide in a straight line along the limit frame 8 to ensure that the sliding of the push rod 15 will trigger the micro switch.

[0035] The side wall of the base 1 is fixedly connected with a buckle point 5, and the side wall of the pressure cover 2 is fixedly connected with a buckle foot 6, and the buckle foot 6 and the buckle point 5 are snap-fitted.

[0036] like Figure 1 As shown, when the pressure cover 2 is pressed onto the base 1 , the buckle feet 6 will be snapped onto the buckle points 5 to ensure the seal between the pressure cover 2 and the base 1 .

[0037] The working principle of the micro switch auxiliary trigger device provided by the utility model is as follows:

[0038] By installing multiple groups of micro switches in the accommodating cavity 11, the base 1 and the pressure cover 2 are interlocked with each other, and the multiple groups of micro switches are stuck in the middle to prevent movement. By sliding the shaft body 4, the shaft body 4 is squeezed into the inside of the socket 16, and the push rod 15 is controlled to slide, squeezing the contacts of the micro switches, and triggering multiple groups of micro switches at the same time, so that the multiple groups of micro switches act synchronously. The elastic component will facilitate the resetting of the push rod 15. The device improves the stability and synchronization of the switch, and the shell (base 1 and pressure cover 2) are all molded with plastic, which isolates the micro switch from the sheet metal and improves the overall dielectric properties of the switch. At the same time, the shell and the micro switch can be assembled in one piece, which simplifies the assembly steps and improves production efficiency.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A micro switch auxiliary trigger device, comprising a base (1), characterized in that: The upper end of the base (1) is clamped with a pressure cover (2), and the middle of the base (1) and the pressure cover (2) are both provided with operating ports (3), and a plurality of groups of accommodating cavities (11) are provided between the base (1) and the pressure cover (2). A push rod (15) is slidably connected between the base (1) and the pressure cover (2), and a socket (16) is provided through the middle of the push rod (15), and a shaft (4) is inserted into the socket (16), and the shaft (4) passes through the two groups of operating ports (3). Trapezoidal ports (20) are symmetrically provided on the side of the push rod (15), and elastic components are fixedly connected to both ends of the push rod (15), and the two groups of elastic components are slidably connected between the base (1) and the pressure cover (2).

2. A micro switch auxiliary trigger device according to claim 1, characterized in that: A plurality of groups of the accommodating cavities (11) are fixedly connected with a limit column (10) and a card plate (9), the card plate (9) being located on one side of the limit column (10), the limit column (10) and the card plate (9) being used to fix a micro switch, a guide frame (12) being fixedly connected to the middle of the base (1), a guide column (13) being fixedly connected to the middle of the pressure cover (2), and the guide column (13) and the guide frame (12) being plug-fitted.

3. A micro switch auxiliary trigger device according to claim 1, characterized in that: Both ends of the base (1) are fixedly connected to guide ends (7), and both ends of the pressure cover (2) are fixedly connected to pressure plates (14). The pressure plates (14) and the guide ends (7) cooperate with each other, and the ends of the two groups of elastic components are respectively located in the two groups of guide ends (7).

4. A micro switch auxiliary trigger device according to claim 3, characterized in that: The elastic component comprises a column (17), the column (17) is fixedly connected to the end of the push rod (15), and the end of the column (17) is slidably connected between the guide end (7) and the pressure plate (14), and a spring (18) is sleeved on the side wall of the column (17), one end of the spring (18) is fixedly connected to the end of the push rod (15), and the other end is located on the side of the guide end (7).

5. The micro switch auxiliary trigger device according to claim 1, characterized in that: The base (1) and the gland (2) are both fixedly connected to a limiting frame (8), and bosses (19) are fixedly connected to both sides of the top rod (15), and the bosses (19) are slidably connected to the limiting frame (8).

6. A micro switch auxiliary trigger device according to claim 1, characterized in that: The side wall of the base (1) is fixedly connected with a buckle point (5), and the side wall of the pressure cover (2) is fixedly connected with a buckle foot (6), and the buckle foot (6) and the buckle point (5) are snap-fitted.

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