Waterproof double-layer lateral switch

Abstract

The utility model provides a waterproof type double-layer lateral switch, which belongs to the technical field of switches, and comprises a shell assembly, a diaphragm, a button, a pin and an elastic sheet, the shell assembly comprises a base, a spacer block and a support, the support is arranged on the periphery of the base and the spacer block in a surrounding manner, the pin is embedded in the base, the base is provided with an accommodating cavity, and the elastic sheet is arranged in the accommodating cavity. The elastic piece is arranged in the containing cavity, the diaphragm is pressed between the base and the partition block in an abutting mode and seals the containing cavity, and the button comprises a trigger end connected with the diaphragm in an abutting mode and an operation end stretching out of the support. Compared with a traditional side switch, the base is divided into the base and the spacer block, and the diaphragm is arranged between the base and the spacer block, so that external moisture or pollutants are prevented from permeating into the switch, and particularly, scaling powder can be effectively prevented from permeating into a path of the accommodating cavity in the welding process, and the service life of the switch is prolonged. Therefore, the problems that the circuit cannot be conducted and the button fails are avoided, and the reliability of the switch function is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a waterproof double-layer lateral switch. Background Art

[0002] With the continuous development of science and technology and the improvement of industrial automation level, side switches, as a key control component, are widely used in various mechanical equipment and automation systems. The main function of side switches is to realize the start and stop control, position detection and safety protection of mechanical parts. However, in some special environments, the performance of side switches is often affected by external factors, such as water, dust, oil, etc., resulting in equipment failure or failure.

[0003] A traditional lateral switch includes a base, a bracket, a pin, a contact and a button. The base and the bracket constitute a shell assembly, a housing cavity is formed in the shell assembly, the pin is buried in the base, the contact is arranged in the housing cavity, one end of the button is in contact with the contact, and the other end extends out of the housing cavity. When a lateral switch of this structure is welded on a circuit board, the flux can easily penetrate into the housing cavity from the connection between the base and the bracket, resulting in problems such as the circuit cannot be normally conducted and the button cannot be effectively pressed down, thereby affecting the function and reliability of the lateral switch. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a waterproof double-layer lateral switch.

[0005] The technical solution adopted by the utility model is as follows: The application provides a waterproof double-layer lateral switch, including a shell assembly, a diaphragm, a button, a pin and a spring, the shell assembly includes a base, a spacer and a bracket, the bracket is arranged around the periphery of the base and the spacer, the pin is buried in the base, the base is provided with a receiving cavity, the spring is arranged in the receiving cavity, the diaphragm is pressed between the base and the spacer and seals the receiving cavity, and the button includes a trigger end abutting against the diaphragm and an operating end extending out of the bracket.

[0006] In some embodiments, positioning columns are disposed on both sides of the base, and positioning openings adapted to the positioning columns are disposed on both sides of the spacer.

[0007] In some embodiments, the bracket includes a positioning plate portion and a bending plate portion arranged on both sides of the positioning plate portion, the positioning plate portion is provided with a first opening for the positioning column to pass through and a second opening for the button operating end to pass through, the positioning plate portion is abutted against the spacer, and the bending plate portions on both sides thereof are bent to the side of the base away from the spacer.

[0008] In some embodiments, a side of the base away from the spacer is provided with an embedding groove portion adapted to the end of the bent plate portion.

[0009] In some embodiments, the embedding groove portion is cross-shaped, and the end of the bent plate portion is T-shaped.

[0010] In some embodiments, a limiting protrusion is provided on the button, the trigger end and the operating end are respectively located at two ends of the limiting protrusion, and the cross-section of the trigger end gradually decreases toward the diaphragm.

[0011] In some embodiments, the spacer is provided with a first channel for the limiting protrusion portion to slide and a second channel for the operating end to pass through.

[0012] In some embodiments, the end of the positioning column is higher than the first opening, and the end of the positioning column is hot-riveted to the bracket.

[0013] In some embodiments, there are two spring sheets and they are stacked in the accommodating cavity. The spring sheet is an arc-shaped plate with a protrusion in the middle toward the button. Two long holes are provided on the spring sheet along its length direction. A pressing portion that cooperates with the trigger end is formed between the two long holes, and both sides of the pressing portion protrude toward the long hole.

[0014] In some embodiments, an installation channel is provided on the button along its axial direction, and a positioning piece, a flexible hollow ball and a pressing piece are sequentially provided in the installation channel toward the direction of the spring sheet. The positioning piece is threadedly matched with the upper end of the installation channel, and the flexible hollow ball is pressed between the positioning piece and the pressing piece. Under the support of the flexible hollow ball, the pressing piece abuts against the spring sheet.

[0015] The beneficial effects of the utility model are as follows: compared with the traditional lateral switch, the utility model splits the base into a base and a spacer, and then arranges a diaphragm between the base and the spacer to effectively seal the accommodating cavity to prevent external moisture or contaminants from penetrating into the switch, especially effectively blocking the path of flux penetrating into the accommodating cavity during the welding process, thereby avoiding problems such as circuit failure and button failure, and ensuring the reliability of the switch function. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0017] Figure 1 This is an exploded view of the waterproof double-layer lateral switch in the utility model;

[0018] Figure 2The schematic diagram of the base in the utility model Figure 1 ;

[0019] Figure 3 The schematic diagram of the base in the utility model Figure 2 ;

[0020] Figure 4 It is a schematic diagram of a button in the utility model;

[0021] Figure 5 It is a schematic diagram of the partition block of the utility model;

[0022] Figure 6 It is a schematic diagram of the bracket in the utility model;

[0023] Figure 7 It is a schematic diagram of the shrapnel in the utility model;

[0024] Figure 8 It is a schematic diagram of a waterproof double-layer lateral switch in the utility model;

[0025] Fig. 9 This is a cross-sectional view of the waterproof double-layer lateral switch in the utility model. Figure 1 ;

[0026] Fig.10 This is a cross-sectional view of the waterproof double-layer lateral switch in the utility model. Figure 2 . DETAILED DESCRIPTION

[0027] The following description provides specific application scenarios and requirements of this specification, with the purpose of enabling those skilled in the art to make and use the contents of this specification. Various local modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0028] In the description of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "transverse", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "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. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Secondly, the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components and should not be understood as limitations on the embodiments of the present application.

[0030] In addition, the terms "installed", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components.

[0031] For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Regarding the drawings of the present application, it should be clearly understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of the present specification. It should also be understood that the drawings are not drawn to scale.

[0033] When traditional lateral switches are soldered to circuit boards, the soldering flux easily penetrates into the placement cavity from the connection gap between the base and the bracket, causing problems such as the circuit not being able to conduct normally and the button not being able to be effectively pressed, thereby affecting the function and reliability of the lateral switch.

[0034] Based on the above problems, Figures 1 to 10 As shown, the present specification provides a waterproof double-layer lateral switch, including a shell component, a diaphragm 1, a button 2, a pin 3 and a spring 4, the shell component includes a base 5, a spacer 6 and a bracket 7, the bracket 7 is arranged around the outer periphery of the base 5 and the spacer 6, the pin 3 is buried in the base 5, the base 5 is provided with a receiving cavity 50, the spring 4 is arranged in the receiving cavity 50, the diaphragm 1 is pressed between the base 5 and the spacer 6 and seals the receiving cavity 50, the button 2 includes a trigger end 200 abutting against the diaphragm 1 and an operating end 201 extending out of the bracket 7, such an arrangement, compared with the traditional lateral switch that splits the base into the base 5 and the spacer 6, and then arranges the diaphragm 1 between the base 5 and the spacer 6, effectively seals the receiving cavity 50, prevents external moisture or contaminants from penetrating into the switch, and can especially effectively block the path of flux penetrating into the receiving cavity 50 during the welding process, thereby avoiding problems such as circuit failure and button failure, and ensuring the reliability of the switch function.

[0035] Among them, the base is separated into the base 5 and the spacer 6, so that the button 2 can be isolated outside the accommodating cavity 50 and its travel range is not too large, which is conducive to the miniaturization of the switch.

[0036] In some embodiments, positioning posts 51 are disposed on both sides of the base 5 , and positioning openings 60 matched with the positioning posts 51 are disposed on both sides of the spacer 6 , so as to facilitate positioning during assembly.

[0037] Secondly, the bracket 7 includes a positioning plate portion 70 and a bent plate portion 71 arranged on both sides of the positioning plate portion 70. The positioning plate portion 70 is provided with a first opening 700 for the positioning column 51 to pass through and a second opening 701 for the operating end 201 of the button 2 to pass through. During assembly, it is only necessary to align the positioning column 51 with the first opening 700 and the operating end 201 with the second opening 701 to complete the installation of the bracket 7, which reduces the difficulty of alignment and improves assembly efficiency.

[0038] Secondly, the positioning plate portion 70 is attached to the spacer 6, and the bent plate portions 71 on both sides thereof are bent to the side of the base 5 away from the spacer 6. Generally, the bracket 7 is made of metal material, and the bracket 7 tightly wraps and fixes the base 5 and the spacer 6 through the bending design, forming an effective clamping structure, which can not only prevent the relative movement between the base 5 and the spacer 6, but also effectively avoid the loosening phenomenon caused by vibration or external force impact, thereby improving the stability of the entire switch. In addition, the metal bracket is fixed by bending, which makes the assembly process simpler.

[0039] In some embodiments, a groove portion 52 adapted to the end of the bent plate portion 71 is provided on one side of the base 5 away from the spacer 6. After the housing assembly is assembled, the end of the bent plate portion 71 is embedded in the groove portion 52, thereby improving the stability and firmness of the switch.

[0040] Preferably, the embedding groove portion 52 is cross-shaped, and the end of the bent plate portion 71 is T-shaped, so that the whole is more beautiful after assembly.

[0041] Furthermore, the end of the positioning column 51 is higher than the first opening 700 , and the end of the positioning column 51 is hot-riveted to the bracket 7 , so that the switch as a whole is more firm and reliable.

[0042] In some embodiments, a limiting protrusion portion 202 is provided on the button 2, and the trigger end 200 and the operating end 201 are respectively located at the two ends of the limiting protrusion portion 202, and the cross-section of the trigger end 200 gradually decreases toward the diaphragm 1, so that the pressure of the trigger end 200 is more concentrated when pressed down, so as to better trigger the spring 4 to realize the switching function.

[0043] Secondly, the spacer 6 is provided with a first channel 61 for the limiting protrusion portion 202 to slide and a second channel 62 for the operating end 201 to pass through. The limiting protrusion portion 202 can slide in the first channel 61 to ensure that the pressing stroke of the button 2 is controlled, and the second channel 62 is for the operating end 201 to pass through, so that the button 2 can be effectively connected with other components such as a circuit board or other mechanical devices.

[0044] In some embodiments, the spring sheet 4 is two and is stacked in the accommodating cavity 50. The spring sheet 4 is an arc-shaped plate with the middle part protruding toward the button 2. The two stacked spring sheets 4 form a composite elastic structure, which can provide stronger elasticity and restoring force. Compared with a single spring sheet, the double-layer design can provide a more uniform and strong rebound force when the button 2 is pressed, ensuring that the button returns quickly after being released, thereby improving the response speed of the operation and improving the durability and service life of the switch.

[0045] In some embodiments, two elongated holes 40 are provided on the spring piece 4 along its length direction, and a pressing portion 41 cooperating with the trigger end 200 is formed between the two elongated holes 40. Both sides of the pressing portion 41 protrude toward the elongated hole 40, thereby enhancing the flexibility and response speed of the spring piece 4 and more evenly dispersing the force applied to the spring piece 4, thereby improving the carrying capacity.

[0046] In some embodiments, Fig.10 As shown, the button 2 is provided with a mounting channel 8 along its axial direction, and a positioning member 9, a flexible hollow ball 10 and a pressing member 11 are sequentially arranged in the mounting channel 8 toward the direction of the spring sheet 4, the positioning member 9 is threadedly matched with the upper end of the mounting channel 8, the flexible hollow ball 10 is pressed between the positioning member 9 and the pressing member 11, and under the support of the flexible hollow ball 10, the pressing member 11 is in contact with the spring sheet 4. Specifically, the mounting channel 8 includes a third channel and a fourth channel, the inner diameter of the third channel is larger than the inner diameter of the fourth channel, the positioning member 9 is threadedly matched with the third channel, a limiting portion is provided on the upper end of the pressing member 11, the limiting portion is slidably arranged in the third channel, and the lower end of the pressing member 11 passes through the fourth channel and is in contact with the spring sheet 4.

[0047] Among them, the flexible hollow ball 10 can be made of silicone or rubber material, which can provide users with a soft and comfortable touch, improve the feel of the switch, and have good shock absorption and sound insulation effects, which can reduce the noise and vibration generated when operating the button. In addition, the pre-tightening force of the flexible hollow ball 10 can be adjusted by rotating the positioning piece 9, and different operating experiences from light touch to heavy press can be achieved to meet the needs of different users. If the button 2 is not sensitive, simple troubleshooting can be performed by adjusting the pre-tightening force.

[0048] Secondly, a flexible hollow ball 10 of suitable diameter is selected and installed in the installation channel 8 . When the flexible hollow ball 10 is initially squeezed so that its two ends abut against the inner wall of the installation channel 8 , the sealing of the installation channel 8 can be ensured.

[0049] In summary, after reading this detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure may be presented only by way of example and may not be restrictive. Although not explicitly stated herein, those skilled in the art will appreciate that the requirements of this application encompass various reasonable changes, improvements and modifications to the embodiments. These changes, improvements and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0050] In addition, it should be understood that in the foregoing description of the embodiments of the present application, in order to help understand a feature and for the purpose of simplifying the present application, the present application combines various features in a single embodiment, drawing or its description. However, this does not mean that the combination of these features is necessary. When reading the present application, it is entirely possible for a person skilled in the art to mark out a part of the devices as a separate embodiment. In other words, the embodiments in the present application can also be understood as the integration of multiple secondary embodiments. This is also true when the content of each secondary embodiment is less than all the features of a single aforementioned disclosed embodiment.

[0051] Finally, it should be understood that the embodiments of the application disclosed herein are explanations of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Therefore, the embodiments disclosed in the present application are merely examples and not limitations. Those skilled in the art can adopt alternative configurations according to the embodiments in the present application to implement the application in the present application. Therefore, the embodiments of the present application are not limited to the embodiments accurately described in the application.

Claims

1. Waterproof double-layer lateral switch, characterized in that: The invention comprises a housing component, a diaphragm (1), a button (2), a pin (3) and a spring sheet (4); the housing component comprises a base (5), a spacer (6) and a bracket (7); the bracket (7) is arranged around the outer periphery of the base (5) and the spacer (6); the pin (3) is embedded in the base (5); a receiving cavity (50) is arranged on the base (5); the spring sheet (4) is arranged in the receiving cavity (50); the diaphragm (1) is pressed between the base (5) and the spacer (6) and seals the receiving cavity (50); the button (2) comprises a trigger end (200) abutting against the diaphragm (1) and an operating end (201) extending out of the bracket (7).

2. The waterproof double-layer lateral switch according to claim 1, characterized in that: Positioning columns (51) are provided on both sides of the base (5), and positioning openings (60) adapted to the positioning columns (51) are provided on both sides of the spacer (6).

3. The waterproof double-layer lateral switch according to claim 2, characterized in that: The bracket (7) comprises a positioning plate portion (70) and bent plate portions (71) arranged on both sides of the positioning plate portion (70); the positioning plate portion (70) is provided with a first opening (700) for the positioning column (51) to pass through and a second opening (701) for the button (2) operating end (201) to pass through; the positioning plate portion (70) is abutted against the spacer (6), and the bent plate portions (71) on both sides thereof are bent to a side of the base (5) away from the spacer (6).

4. The waterproof double-layer lateral switch according to claim 3, characterized in that: A groove portion (52) adapted to the end of the bent plate portion (71) is provided on a side of the base (5) away from the spacer block (6).

5. The waterproof double-layer lateral switch according to claim 4, characterized in that: The embedding groove portion (52) is cross-shaped, and the end of the bent plate portion (71) is T-shaped.

6. The waterproof double-layer lateral switch according to claim 1, characterized in that: The button (2) is provided with a limit convex block portion (202), the trigger end (200) and the operating end (201) are respectively located at two ends of the limit convex block portion (202), and the cross section of the trigger end (200) gradually decreases towards the diaphragm (1).

7. The waterproof double-layer lateral switch according to claim 6, characterized in that: The spacer (6) is provided with a first channel (61) for the position-limiting protrusion portion (202) to slide and set, and a second channel (62) for the operating end (201) to pass through.

8. The waterproof double-layer lateral switch according to claim 3, characterized in that: The end of the positioning column (51) is higher than the first opening (700), and the end of the positioning column (51) is hot-riveted to the bracket (7).

9. The waterproof double-layer lateral switch according to claim 1, characterized in that: The spring sheets (4) are two and are stacked in the accommodating cavity (50). The spring sheets (4) are arc-shaped plates with the middle protruding toward the button (2). The spring sheets (4) are provided with two elongated holes (40) along their length direction. A pressing portion (41) cooperating with the trigger end (200) is formed between the two elongated holes (40), and both sides of the pressing portion (41) protrude toward the inside of the elongated holes (40).

10. The waterproof double-layer lateral switch according to claim 1, characterized in that: The button (2) is provided with a mounting channel (8) along its axial direction. A positioning member (9), a flexible hollow ball (10) and a pressing member (11) are sequentially arranged in the mounting channel (8) in a direction toward the spring sheet (4). The positioning member (9) is threadedly engaged with the upper end of the mounting channel (8). The flexible hollow ball (10) is pressed between the positioning member (9) and the pressing member (11). Under the support of the flexible hollow ball (10), the pressing member (11) is in contact with the spring sheet (4).

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