Key limiting structure of key switch

Abstract

The utility model discloses a button limiting structure of a button switch, which relates to the technical field of limiting structures and comprises a shell, a stop block is fixedly mounted at the upper end of the shell, a pressing block is movably mounted at the upper end of the stop block, fixing blocks are fixedly mounted at two ends of the shell, and the pressing block is movably mounted at the lower end of the shell. The surface of the fixing block is provided with a bolt piece, the bottom end of the shell is fixedly provided with a pole plate, the lower end of the pressing block is fixedly provided with a first contact, and the interior of the check block is provided with a groove body and a first spring. According to the utility model, the inner cavity of the shell is provided with the guide rod, and the outer surface of the guide rod is provided with the second spring; and a rubber insulating block is fixedly mounted at one end of the spring II, so that circuit malfunction or failure caused by improper key operation can be prevented, and normal operation and operation accuracy of equipment are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of limit structures, in particular to a key limit structure of a key switch. Background Art

[0002] Pushbutton switches, as an important interface between electronic devices and users, have a background and development that is closely tied to technological advancements and people's relentless pursuit of convenient operation. Early pushbutton switches in electronic devices featured simple designs, limited functions, and often lacked a good feel and feedback mechanism. With the advancement of electronic technology and consumers' increasing demands for a better operating experience, pushbutton switch design has also undergone revolutionary changes. Modern pushbutton switches require not only precise operational feedback and a good feel, but also diverse requirements such as durability, waterproofness, and dustproofing. To this end, designers are constantly developing new materials and processes, optimizing the key limit structure, and ensuring that pushbutton switches maintain stable performance over long-term use. Today, pushbutton switches are widely used in various electronic devices such as mobile phones, computers, and smart homes, becoming a bridge connecting users with the digital world.

[0003] During operation, a key switch lacks an effective limit mechanism to prevent accidental triggering of the key, which may lead to unintended pressing. Although some existing key switches attempt to provide a certain degree of protection and limit by attaching a protective cap to the outside of the key, this protective cap is easily lost. Therefore, this paper proposes a key limit structure for a key switch. Utility Model Content

[0004] The purpose of the utility model is to provide a key limiting structure of a key switch.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a key limiting structure of a key switch, comprising a shell, a stopper is fixedly installed on the upper end of the shell, and a pressing block is movably installed on the upper end of the stopper, and the two ends of the shell are fixedly installed with a fixing block, the surface of the fixing block is provided with a bolt, the bottom end of the shell is fixedly installed with a pole plate, the lower end of the pressing block is fixedly installed with a contact 1, a groove body is provided inside the stopper, and a spring 1 is provided, the bottom end of the spring 1 is fixedly connected to the surface of the groove body, a cavity is provided inside the shell, and a contact 2 is fixedly installed on the inner bottom wall, guide rods are provided on both sides of the inner wall of the shell, and a spring 2 is sleeved on the outer surface of the guide rod, one end of the spring 2 is fixedly installed with a rubber insulating block, and the other end is fixedly connected to the inner wall of the shell, one end of the rubber insulating block is fixedly installed with a T-plate, and a cover plate is fixedly installed on the surface of the T-plate.

[0006] As a further solution of the present invention: the two fixing blocks are symmetrically distributed at both ends of the shell, and the bolt member is located at the center of the fixing blocks.

[0007] As a further solution of the present invention: the spring 1 is located at the bottom end of the contact 1 and is fixedly connected to the bottom end of the contact 1.

[0008] As a further solution of the present invention: a cavity is provided on the upper surface of the shell, and the contact 1 passes through the cavity and extends to the interior of the shell.

[0009] As a further solution of the present invention: the number of the guide rods is two, and they are arranged in a row inside the shell.

[0010] As a further solution of the present invention: the number of the springs 2 is two, and one end of each spring is connected to the rubber insulating block.

[0011] As a further solution of the present invention: an empty slot is provided at one end of the shell, and the T-plate moves in the empty slot.

[0012] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model is provided with a guide rod through the internal cavity of the shell, and a second spring is provided on the outer surface of the guide rod. A rubber insulating block is fixedly installed on one end of the second spring, which helps to prevent circuit malfunction or failure caused by improper key operation, ensures the normal operation and accuracy of the equipment, and can ensure that the button can be pressed quickly and accurately in an emergency, thereby cutting off the power supply or stopping the equipment operation, protecting the safety of personnel and equipment, and preventing malfunction or illegal operation in some occasions where strict control of operation sequence and conditions is required;

[0014] 2. The utility model provides a groove body and a spring 1 inside the block. The spring 1 can ensure that the key provides a stable pressure feedback when it is pressed. When the user presses the button, the spring 1 is compressed, providing the user's finger with a clear tactile sensation, so that the user can feel that the key has been successfully triggered. This tactile feedback is crucial to improving the accuracy and convenience of user operation. After long-term use and wear, the spring 1 can also maintain its shape and elasticity, thereby ensuring the durability and reliability of the key switch.

[0015] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic front view of the structure in the embodiment of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the structure in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of a rubber insulating block in an embodiment of the present utility model;

[0019] Figure 4 It is a schematic diagram of the structure in the embodiment of the present invention.

[0020] In the picture:

[0021] 11. Housing; 12. Stopper; 13. Pressing block; 14. Fixing block; 15. Bolt; 16. Plate;

[0022] 21. Contact 1; 22. Spring 1; 23. Contact 2; 24. Guide rod; 25. Spring 2; 26. Rubber insulating block; 27. T-plate; 28. Cover. DETAILED DESCRIPTION

[0023] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0024] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] Please see the attached Figure 1 -Attached Figure 4 The present invention relates to a key limiting structure of a key switch, comprising a shell 11, a stopper 12 is fixedly installed on the upper end of the shell 11, a pressing block 13 is movably installed on the upper end of the stopper 12, a fixing block 14 is fixedly installed on both ends of the shell 11, a bolt 15 is provided on the surface of the fixing block 14, a pole plate 16 is fixedly installed on the bottom end of the shell 11, a contact 1 21 is fixedly installed on the lower end of the pressing block 13, a groove is provided inside the stopper 12, and a spring 1 22 is provided, the bottom end of the spring 1 22 is fixedly connected to the surface of the groove, a cavity is provided inside the shell 11, and a contact 2 23 is fixedly installed on the inner bottom wall, guide rods 24 are provided on both sides of the inner wall of the shell 11, a spring 25 is sleeved on the outer surface of the guide rod 24, one end of the spring 25 is fixedly installed with a rubber insulating block 26, and the other end is fixedly connected to the inner wall of the shell 11, one end of the rubber insulating block 26 is fixedly installed with a T-plate 27, and a cover plate 28 is fixedly installed on the surface of the T-plate 27.

[0026] The two fixing blocks 14 are symmetrically distributed at both ends of the housing 11, the bolt 15 is located in the center of the fixing block 14, and the spring 1 22 is located at the bottom end of the contact 1 21 and is fixedly connected to the bottom end of the contact 1 21. By setting the spring 1 22, it can ensure that the key provides a stable pressure feedback when it is pressed. When the user presses the button, the spring 1 22 is compressed, providing the user's finger with a clear tactile feeling, so that the user can feel that the key has been successfully triggered. This tactile feedback is very important for improving the accuracy and convenience of user operation and ensuring the key switch is in a stable state. Durability, a cavity is provided on the upper surface of the shell 11, and the contact 1 21 passes through the cavity and extends to the interior of the shell 11. There are two guide rods 24, and they are arranged in a row inside the shell 11. There are two springs 25, and one end of each is connected to the rubber insulating block 26. The provision of spring 25 and rubber insulating block 26 helps to prevent circuit malfunction or failure caused by improper key operation, ensure the normal operation of the equipment and the accuracy of operation, and prevent misoperation or illegal operation. An empty slot is provided at one end of the shell 11, and the T-plate 27 moves in the empty slot.

[0027] Working principle:

[0028] First, connect the two pole plates 16 to the positive and negative poles of the cable respectively, and fix the fixing block 14 to the required position with the bolt 15. When pressing the button, first pull the T-plate 27 to one side, driving the rubber insulating block 26 to squeeze the spring 2 25. The cover plate 28 will block the empty slot to leave a gap. Press the pressing block 13 to drive the contact 1 21 to contact the contact 2 23, thereby connecting the positive and negative poles. After releasing, the pressing block 13 is reset under the action of the contact 1 21, and the rubber insulating block 26 is reset under the action of the spring 2 25. The rubber insulating block 26 will isolate the contact 1 21 and the contact 2 23 to prevent employees from operating incorrectly. At this point, the entire workflow ends.

[0029] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0032] For those skilled in the art, it is possible to make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of the present invention, and they still fall within the scope of protection of the present invention.

Claims

1. A key limit structure for a key switch, comprising a housing (11), characterized in that: The upper end of the shell (11) is fixedly mounted with a stopper (12), the upper end of the stopper (12) is movably mounted with a pressing block (13), both ends of the shell (11) are fixedly mounted with fixing blocks (14), the surface of the fixing block (14) is provided with a bolt (15), the bottom end of the shell (11) is fixedly mounted with a plate (16), the lower end of the pressing block (13) is fixedly mounted with a contact 1 (21), a groove body is provided inside the stopper (12), and a spring 1 (22) is provided, the bottom end of the spring 1 (22) is in contact with the groove The housing (11) is fixedly connected to the surface of the housing, a cavity is provided inside the housing (11), and a second contact (23) is fixedly installed on the inner bottom wall, guide rods (24) are provided on both sides of the inner wall of the housing (11), a second spring (25) is sleeved on the outer surface of the guide rod (24), one end of the second spring (25) is fixedly installed with a rubber insulating block (26), and the other end is fixedly connected to the inner wall of the housing (11), one end of the rubber insulating block (26) is fixedly installed with a T-shaped plate (27), and a cover plate (28) is fixedly installed on the surface of the T-shaped plate (27).

2. The key limit structure of a key switch according to claim 1, characterized in that: The two fixing blocks (14) are symmetrically distributed at both ends of the housing (11), and the bolt member (15) is located at the center of the fixing blocks (14).

3. The key limit structure of a key switch according to claim 1, characterized in that: The spring 1 (22) is located at the bottom end of the contact 1 (21) and is fixedly connected to the bottom end of the contact 1 (21).

4. The key limit structure of a key switch according to claim 1, characterized in that: A cavity is provided on the upper surface of the shell (11), and the contact 1 (21) passes through the cavity and extends to the interior of the shell (11).

5. The key limit structure of a key switch according to claim 1, characterized in that: There are two guide rods (24) arranged in a row inside the housing (11).

6. The key limit structure of a key switch according to claim 1, characterized in that: There are two springs (25), and one end of each spring is connected to a rubber insulating block (26).

7. The key limit structure of a key switch according to claim 1, characterized in that: One end of the housing (11) is provided with an empty slot, and the T-plate (27) moves in the empty slot.

Images