Sealing switch device

Abstract

The utility model provides a sealing switch device, and belongs to the technical field of switch sealing. Comprising a switch body, a metal sleeve on a lead is sleeved on a wiring terminal at the bottom of the switch body, a positioning ring and a fixing block are respectively fixed at the bottom of the switch body, the fixing block is located inside the positioning ring, and a front sealing cover and a rear sealing cover are respectively fixed on two opposite sides of the fixing block through bolts. According to the utility model, through the arrangement of the hollow front sealing gasket, the hollow rear sealing gasket and the driving assembly, the piston of the driving assembly extrudes hydraulic oil to enable the hollow front sealing gasket and the hollow rear sealing gasket to expand and be tightly attached to the wire body, and the two sealing strips between the front sealing cover and the rear sealing cover are tightly attached to each other. Therefore, the connection part of the wiring terminal of the switch body and the wire is sealed, metal sleeves of the wiring terminal and the wire are effectively prevented from being oxidized due to damp, stable current transmission between the wiring terminal of the switch body and the wire is ensured, and the occurrence probability of circuit faults is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of switch sealing, and particularly relates to a sealed switch device. Background Art

[0002] A switch is an electrical component used to control the on-off of a circuit. Wires are used to connect devices and power sources to the switch. By sleeving a metal sleeve on the wiring terminal at the bottom of the switch, the connection between the switch and the circuit where the switch is located can be achieved. Turning on the switch can connect the entire circuit and turn on the device, and turning off the switch can disconnect the circuit, thereby turning off the device.

[0003] When a common switch is in use, when the switch is in a humid environment for a long time, the connection between the metal sleeve on the wire and the wiring terminal of the switch is prone to oxidation due to lack of sealing. The oxide will reduce the current transmission efficiency between the wire and the switch wiring terminal, thus easily causing circuit failures. Therefore, this application provides a sealed switch device to meet the requirements. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a sealed switch device to solve the technical problem that the connection between the metal sleeve on the wire and the wiring terminal of the switch is prone to oxidation due to lack of sealing, and the oxide will reduce the current transmission efficiency between the wire and the switch wiring terminal, thus easily causing circuit failures.

[0005] To solve the above technical problem, the utility model provides the following technical solutions:

[0006] A sealed switch device includes a switch body. A metal sleeve on a wire is sleeved on a wiring terminal at the bottom of the switch body. A positioning ring and a fixing block are respectively fixed at the bottom of the switch body. The fixing block is located inside the positioning ring. The opposite sides of the fixing block are respectively fixed with a front cover and a rear cover by bolts. The wiring terminal of the switch body is located inside the front cover and the rear cover. Sealing strips are respectively fixed on the opposite surfaces of the front cover and the rear cover. The opposite surfaces of the two sealing strips are mutually attached. An annular groove is formed on the side surface of the positioning ring, and the inner wall of the annular groove is attached to the side surface of the sealing strip. Two hollow front sealing pads are inlaid on the side surface of the front cover, and two hollow rear sealing pads are inlaid on the side surface of the rear cover. The hollow front sealing pads and the hollow rear sealing pads are respectively attached to both sides of the wire. Driving components are arranged in both the front cover and the rear cover, and the two driving components are respectively used to drive the hollow front sealing pads and the hollow rear sealing pads to expand and contract.

[0007] Preferably, the driving assembly includes a piston. Boxes are fixed to the sides of the inner walls of the front cover and the rear cover. Circular grooves are formed on the opposite sides of the fixed block, and the side of the box is slidably connected to the inner wall of the circular groove. The piston is slidably connected to the inner wall of the box. Driving rods and tension springs are respectively fixed to the side of the piston. The end of the driving rod away from the piston movably penetrates the box and fits against the side of the inner wall of the circular groove. The end of the tension spring away from the piston is fixed to the side of the inner wall of the box. Square cavities are formed inside the front cover and the rear cover, and flow channels are also formed inside the front cover and the rear cover. The square cavities are connected to the inside of the box through the flow channels. Arc-shaped cavities are formed inside both the hollow front gasket and the hollow rear gasket, and the arc-shaped cavities are connected to the square cavities. The box, the flow channels, the square cavities, the hollow front gasket, and the hollow rear gasket are all filled with hydraulic oil.

[0008] Preferably, an arc-shaped flow guiding surface is provided on the side of the inner wall of the box away from the fixed block.

[0009] Preferably, an arc-shaped bending portion is provided in the flow channel.

[0010] Preferably, a flow guiding strip is fixed inside the square cavity, and the side of the flow guiding strip is a curved surface that bends away from the wire.

[0011] Preferably, an inclined guiding surface is provided on the side of the box.

[0012] Preferably, the central axis of the driving rod coincides with the central axis of the piston.

[0013] Preferably, an arc-shaped blocking block is fixed to the inner wall of the hollow rear gasket.

[0014] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0015] In the above solution, through the settings of the hollow front gasket, the hollow rear gasket and the driving assembly, after the front cover and the rear cover are fixed to the bottom of the switch body, the piston of the driving assembly squeezes the hydraulic oil to cause the hollow front gasket and the hollow rear gasket to expand and tightly fit against the wire body, and the two sealing strips between the front cover and the rear cover tightly fit against each other, thereby realizing the sealing of the connection between the wiring terminal of the switch body and the wire, effectively preventing the metal sleeves of the wiring terminal and the wire from being oxidized due to moisture, ensuring the stable transmission of current between the wiring terminal of the switch body and the wire, and thus effectively reducing the occurrence probability of circuit failures.

[0016] Through the setting of the arc-shaped stopper, after the hollow front gasket expands, it drives the contact surface between the hollow front gasket and the hollow rear gasket to expand to form a convex arc surface. The convex arc surface presses the hollow rear gasket, causing the corresponding position of the hollow rear gasket to be recessed inward and fit with the arc-shaped stopper, improving the sealing performance between the hollow front gasket and the hollow rear gasket, and further improving the sealing performance of the hollow front gasket and the hollow rear gasket at the wire position. Description of the Drawings

[0017] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present disclosure and, together with the specification, are further used to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.

[0018] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 Right sectional view at the box body position of the present utility model;

[0020] Figure 3 Top view sectional view at the piston position of the present utility model;

[0021] Figure 4 Right sectional view at the wire position of the present utility model;

[0022] Figure 5 Top view sectional view at the hollow front gasket position of the present utility model;

[0023] Figure 6 Top view sectional view at the positioning ring position of the present utility model.

[0024] [Reference Numerals]

[0025] 1. Switch body; 2. Front cover; 3. Rear cover; 4. Sealing strip; 5. Hollow front gasket; 6. Hollow rear gasket; 7. Fixed block; 8. Round groove; 9. Driving assembly; 901. Driving rod; 902. Box body; 903. Tension spring; 904. Piston; 905. Flow channel; 906. Square cavity; 907. Arc-shaped stopper; 908. Flow guiding strip; 10. Positioning ring; 11. Wire.

[0026] As shown in the figure, in order to clearly implement the structure of the embodiments of the present utility model, specific structures and devices are marked in the figure, but this is only for schematic purposes and is not intended to limit the present utility model to this specific structure, device, and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and the adjustments or modifications made are still included within the scope of the appended claims. Detailed Embodiments

[0027] The following will describe in detail a sealing switch device provided by the present utility model in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present utility model.

[0028] It should be noted that in the specification, references to "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when describing a specific feature, structure, or characteristic in connection with an embodiment, implementing such feature, structure, or characteristic in connection with other embodiments (whether or not explicitly described) should be within the knowledge of those skilled in the relevant art.

[0029] Generally, terms can be understood, at least in part, from their use in the context. For example, at least in part depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that may not be explicitly described.

[0030] Such as Figures 1 - 6As shown in the figure, an embodiment of the utility model provides a sealed switch device, which includes a switch body 1. A metal sleeve on a wire 11 is sleeved on a terminal on the bottom of the switch body 1. A positioning ring 10 and a fixing block 7 are respectively fixed at the bottom of the switch body 1. The terminal of the switch body 1 is located inside the positioning ring 10. The fixing block 7 is located inside the positioning ring 10 and also between the two terminals of the switch body 1. Front cover 2 and rear cover 3 are respectively fixed to opposite sides of the fixing block 7 by bolts. Threaded grooves are provided on the front and rear sides of the fixing block 7. By passing a plurality of bolts through the front cover 2 and the rear cover 3 and tightening them in the threaded grooves, the fixing of the front cover 2 and the rear cover 3 can be achieved. The terminal of the switch body 1 is located inside the front cover 2 and the rear cover 3. Sealing strips 4 are fixed to the opposite surfaces of the front cover 2 and the rear cover 3. The opposite surfaces of the two sealing strips 4 are in contact with each other. An annular groove is provided on the side surface of the positioning ring 10. The inner wall of the annular groove is in contact with the side surface of the sealing strip 4. The sealing strip 4 is used for sealing between the front cover 2 and the rear cover 3 and also for sealing between the front cover 2 and the rear cover 3 and the positioning ring 10. Two hollow front sealing gaskets 5 are inlaid on the side surface of the front cover 2. Two hollow rear sealing gaskets 6 are inlaid on the side surface of the rear cover 3. The hollow front sealing gaskets 5 and the hollow rear sealing gaskets 6 are respectively attached to both sides of the wire 11. Driving components 9 are arranged inside both the front cover 2 and the rear cover 3. The two driving components 9 are respectively used to drive the hollow front sealing gaskets 5 and the hollow rear sealing gaskets 6 to expand and contract. Through the cooperation of the sealing strip 4 with the hollow front sealing gaskets 5 and the hollow rear sealing gaskets 6, a closed space is formed between the front cover 2 and the rear cover 3, effectively preventing the terminals and the metal sleeve of the wire 11 from being oxidized due to moisture, ensuring the stable transmission of current between the terminals of the switch body 1 and the wire 11, and thus effectively reducing the occurrence probability of circuit failures.

[0031] As Figure 2 and Figure 3As shown in the figure, in this embodiment, the driving assembly 9 includes a piston 904. Boxes 902 are fixedly arranged on the inner side surfaces of the front cover 2 and the rear cover 3. Circular grooves 8 are formed on the opposite sides of the fixing block 7. The side surface of the box 902 is slidably connected to the inner wall of the circular groove 8. The piston 904 is slidably connected to the inner wall of the box 902. A driving rod 901 and a tension spring 903 are fixedly arranged on the side surface of the piston 904. One end of the driving rod 901 away from the piston 904 movably penetrates through the box 902 and fits against the side surface of the inner wall of the circular groove 8. One end of the tension spring 903 away from the piston 904 is fixedly connected to the side surface of the inner wall of the box 902. Square cavities 906 are formed inside the front cover 2 and the rear cover 3. Flow channels 905 are further formed inside the front cover 2 and the rear cover 3. The square cavity 906 is communicated with the inside of the box 902 through the flow channel 905. Arc-shaped cavities are formed inside the hollow front gasket 5 and the hollow rear gasket 6. The arc-shaped cavities are communicated with the square cavity 906. The box 902, the flow channel 905, the square cavity 906, the hollow front gasket 5 and the hollow rear gasket 6 are all filled with hydraulic oil. During the process of fixing the front cover 2 and the rear cover 3, the driving rod 901 is squeezed by the side surface of the inner wall of the circular groove 8 to drive the piston 904 to move. The piston 904 drives the tension spring 903 to be in a stretched state. The piston 904 moves and squeezes the hydraulic oil, so that the hydraulic oil flows into the square cavity 906 along the flow channel 905 and enters the hollow front gasket 5 and the hollow rear gasket 6, causing the hollow front gasket 5 and the hollow rear gasket 6 to expand and tightly fit against the surface of the wire 11, realizing the sealing between the front cover 2 and the rear cover 3 and the wire 11, and improving the sealing performance between the front cover 2 and the rear cover 3 and the wire 11.

[0032] As Figure 2 and Figure 3 shown in the figure, in this embodiment, an arc-shaped guiding surface is arranged on the side of the inner wall of the box 902 away from the fixing block 7. The hydraulic oil in the box 902 is smoothly guided by the arc-shaped guiding surface and flows into the flow channel 905, thereby effectively reducing the resistance during the flow of the hydraulic oil.

[0033] As Figure 2 shown in the figure, in this embodiment, an arc-shaped bending part is arranged in the flow channel 905. The arc-shaped bending part corresponds to the position where the hydraulic oil turns during the flow in the flow channel 905. The resistance of the hydraulic oil flowing and turning is reduced through the arc-shaped bending part, making the flow of the hydraulic oil smoother.

[0034] As Figure 5 shown in the figure, in this embodiment, a guiding strip 908 is fixedly arranged inside the square cavity 906. The side surface of the guiding strip 908 is a curved surface bent away from the wire 11. During the flow of the hydraulic oil, it is guided by the guiding strip 908 and automatically disperses towards the two hollow front gaskets 5 and the two hollow rear gaskets 6.

[0035] As Figure 2 and Figure 3As shown, in this embodiment, an inclined guiding surface is provided on the side surface of the box body 902, and the box body 902 is guided to be inserted into the circular groove 8 through the guiding surface, so as to facilitate the insertion of the box body 902 into the circular groove 8.

[0036] As Figure 2 and Figure 3 shown, in this embodiment, the central axis of the driving rod 901 coincides with the central axis of the piston 904, ensuring that the driving rod 901 drives the piston 904 to move smoothly after being squeezed by the inner wall of the circular groove 8.

[0037] As Figure 5 shown, in this embodiment, an arc-shaped stopper 907 is fixed to the inner wall of the hollow rear gasket 6. The number of arc-shaped stoppers 907 in each hollow rear gasket 6 is two. After the hollow front gasket 5 expands, the contact surface between the hollow front gasket 5 and the hollow rear gasket 6 expands to form a convex arc surface. However, the hydraulic oil in the hollow rear gasket 6 is blocked by the arc-shaped stopper 907 and does not cause the corresponding convex arc surface of the hollow rear gasket 6 to deform. Therefore, after the convex arc surface is formed, the convex arc surface will squeeze the hollow rear gasket 6, causing the corresponding convex arc surface of the hollow rear gasket 6 to sink inward and fit with the arc-shaped stopper 907, thereby improving the sealing performance between the hollow front gasket 5 and the hollow rear gasket 6, and further improving the sealing performance of the hollow front gasket 5 and the hollow rear gasket 6 at the wire 11.

[0038] Working principle: The box bodies 902 on the front cover 2 and the rear cover 3 are respectively inserted into the circular grooves 8 on the front and rear sides of the fixing block 7. The front cover 2 and the rear cover 3 are respectively fixed to the front side and the rear side of the fixing block 7 by bolts, and the box bodies 902 on the front cover 2 and the rear cover 3 are inserted into the circular grooves 8 of the fixing block 7. During the process of fixing the front cover 2 and the rear cover 3, the driving rod 901 is squeezed by the side surface of the inner wall of the circular groove 8 to drive the piston 904 to move. The piston 904 drives the tension spring 903 to be in a stretched state. The piston 904 moves and squeezes the hydraulic oil, causing the hydraulic oil to flow along the flow channel 905 into the square cavity 906 and enter the hollow front gasket 5 and the hollow rear gasket 6, causing the hollow front gasket 5 and the hollow rear gasket 6 to expand and closely fit with the surface of the wire 11, realizing the sealing between the front cover 2 and the rear cover 3 and the wire 11. At the same time, the front cover 2 and the rear cover 3 and between the front cover 2, the rear cover 3 and the positioning ring 10 are sealed by the sealing strip 4. By using the cooperation of the sealing strip 4, the hollow front gasket 5 and the hollow rear gasket 6, the sealing of the connection between the wiring terminal of the switch body 1 and the wire 11 is realized, effectively preventing the metal sleeves of the wiring terminal and the wire 11 from being oxidized due to moisture, ensuring the stable transmission of current between the wiring terminal of the switch body 1 and the wire 11, and thus effectively reducing the occurrence probability of circuit faults;

[0039] When it is necessary to disconnect the connection between the wire 11 and the terminal, unscrew the bolts fixing the front cover 2 and the rear cover 3 from the fixing block 7, and then remove the front cover 2 and the rear cover 3 from the bottom of the switch body 1. After removal, the metal sleeve on the wire 11 can be pulled off from the terminal, thereby disconnecting the connection between the wire 11 and the terminal. After removing the front cover 2 and the rear cover 3, the piston 904 moves reversely under the pulling force of the tension spring 903, creating a negative pressure inside the box body 902, so that the hydraulic oil flows into the box body 902, thereby releasing the expansion of the hollow front gasket 5 and the hollow rear gasket 6.

[0040] The present utility model covers any alternatives, modifications, equivalent methods and solutions made within the essence and scope of the present utility model. In order to enable the public to have a thorough understanding of the present utility model, specific details are described in detail in the above preferred embodiments of the present utility model. However, those skilled in the art can fully understand the present utility model without the description of these details.

[0041] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A sealed switch device, comprising a switch body (1), and a metal sleeve on a wire (11) is sleeved on a terminal at the bottom of the switch body (1), characterized in that, At the bottom of the switch body (1), a positioning ring (10) and a fixing block (7) are respectively fixed. The fixing block (7) is located inside the positioning ring (10). On the opposite sides of the fixing block (7), a front cover (2) and a rear cover (3) are respectively fixed by bolts. The wiring terminals of the switch body (1) are located inside the front cover (2) and the rear cover (3). Sealing strips (4) are fixed on the opposite surfaces of the front cover (2) and the rear cover (3). The opposite surfaces of the two sealing strips (4) are in mutual contact. An annular groove is formed on the side surface of the positioning ring (10), and the inner wall of the annular groove is in contact with the side surface of the sealing strip (4). Two hollow front gaskets (5) are inlaid on the side surface of the front cover (2), and two hollow rear gaskets (6) are inlaid on the side surface of the rear cover (3). The hollow front gaskets (5) and the hollow rear gaskets (6) are respectively attached to both sides of the wire (11). Driving components (9) are arranged inside both the front cover (2) and the rear cover (3), and the two driving components (9) are respectively used to drive the hollow front gaskets (5) and the hollow rear gaskets (6) to expand and contract.

2. The sealed switch device according to claim 1, wherein The driving component (9) includes a piston (904). On the side surfaces of the inner walls of the front cover (2) and the rear cover (3), boxes (902) are respectively fixed. Circular grooves (8) are formed on the opposite sides of the fixing block (7). The side surface of the box (902) is slidably connected to the inner wall of the circular groove (8). The piston (904) is slidably connected to the inner wall of the box (902). On the side surface of the piston (904), a driving rod (901) and a tension spring (903) are respectively fixed. The end of the driving rod (901) far away from the piston (904) movably penetrates through the box (902) and is in contact with the side surface of the inner wall of the circular groove (8). The end of the tension spring (903) far away from the piston (904) is fixed to the side surface of the inner wall of the box (902). Square cavities (906) are formed inside both the front cover (2) and the rear cover (3). Flow channels (905) are also formed inside the front cover (2) and the rear cover (3). The square cavity (906) is connected to the inside of the box (902) through the flow channel (905). Arc-shaped cavities are formed inside both the hollow front gasket (5) and the hollow rear gasket (6), and the arc-shaped cavities are connected to the square cavity (906). The box (902), the flow channel (905), the square cavity (906), the hollow front gasket (5), and the hollow rear gasket (6) are all filled with hydraulic oil.

3. The sealed switch device according to claim 2, characterized in that, On one side of the inner wall of the box (902) far away from the fixing block (7), an arc-shaped guiding surface is provided.

4. The sealed switch device according to claim 2, characterized in that, An arc-shaped bending part is arranged inside the flow channel (905).

5. The sealed switch device according to claim 2, wherein, Inside the square cavity (906), a guiding strip (908) is fixed, and the side surface of the guiding strip (908) is a curved surface bent away from the wire (11).

6. The sealed switch device according to claim 2, characterized in that, On the side surface of the box (902), an inclined guiding surface is provided.

7. The sealed switch device according to claim 2, wherein The central axis of the driving rod (901) coincides with the central axis of the piston (904).

8. The sealed switch device according to claim 2, characterized in that, On the inner wall of the hollow rear gasket (6), an arc-shaped stop block (907) is fixed.

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