Signal protection device

Abstract

The utility model discloses a signal protection device, which is used for water prevention of a product, and comprises a shell, a signal protection device, a signal transmission device, a signal transmission device, a signal transmission device and a signal transmission device, and is characterized in that a mounting groove is formed in the periphery of the shell; the sealing ring is arranged in the mounting groove, and an extrusion part is arranged on an inner ring and / or an outer ring of the sealing ring; and the supporting seat is provided with a mounting part covering the outer side of the shell, the outer side of the mounting part is a water guide surface, and when the inner side of the mounting part is connected with the mounting groove through a sealing ring, the extrusion part of the sealing ring is extruded to form sealing of the shell. According to the signal protection device, rainwater can be guided out and prevented from reversely permeating into the shell, the shell has good sealing performance, the waterproof effect of a product is guaranteed, and the signal protection device is suitable for severe operation conditions.

Description

Technical Field

[0001] The waterproof device of the utility model relates to the technical field, and more specifically, to a signal protection device. Background Art

[0002] Signal protection devices are commonly used in fields such as communication, industry, and mechanization. They are mostly applied to the protection of products in harsh industrial or outdoor environments. To ensure the normal use of products, signal protection devices should have good waterproof and sealing properties.

[0003] In related technologies, a signal protection device realizes the sealing and waterproof effects by arranging a notch on the base, placing a sealing ring connected to the housing in the notch, and covering the housing on the base. In actual application, if there is heavy rain, rainwater will leak back into the housing through the gap between the housing and the base, resulting in poor overall waterproof performance.

[0004] In summary, how to provide a signal protection device with better waterproof performance is an urgent problem for those skilled in the art at present. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a signal protection device that can drain rainwater, prevent rainwater from reverse osmosis into the housing, and the housing has good sealing performance to ensure the waterproof effect of the product, so as to be applicable to relatively harsh working conditions.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A signal protection device for waterproofing products, comprising:

[0008] A housing, an installation groove is provided on the outer periphery of the housing, and the interior is used for placing products;

[0009] A sealing ring is arranged in the installation groove, and an extrusion part is provided on the inner ring and / or outer ring of the sealing ring;

[0010] A support seat, having an installation part covering the outside of the housing, the outside of the installation part is a water guide surface, when the inside of the installation part and the installation groove are connected through the sealing ring, the extrusion part of the sealing ring is extruded to form the seal of the housing.

[0011] Preferably, the installation part includes an installation hole provided on the support seat, and the water guide surface is provided on the outer wall surface of the installation hole;

[0012] The inner ring of the sealing ring fits with the installation groove, and the extrusion part on the outer ring of the sealing ring is in interference fit with the inner wall of the installation hole.

[0013] Preferably, the pressing part is a corrugated surface provided on the outer ring of the sealing ring, and the corrugated surface contacts the inner wall surface of the mounting hole to form a press.

[0014] Preferably, one mounting groove is provided on the outer periphery of the bottom of the housing, and the width of the mounting groove is less than or equal to the depth of the mounting hole.

[0015] Preferably, a plurality of snap buttons are provided on the housing, the snap buttons are arranged above the mounting groove and are snap-connected to the card slots on the support seat, and either one of the snap buttons and the card slots is an elastic member;

[0016] The elastic member can expand outwards or retract inwards along the connection point with the housing;

[0017] Or, the elastic member can expand outwards or retract inwards along the connection point with the support seat.

[0018] Preferably, the snap button is an elastic snap button, and the elastic snap button can retract inwards along the connection point with the housing to insert into the card slot and abut against the inner wall of the card slot under the action of its elastic force.

[0019] Preferably, a nut is provided on the top of the housing, and the nut is sleeved on the connecting portion of the housing to press the sealing member inside the connecting portion for sealing the top of the housing.

[0020] Preferably, clamping claws are provided inside the connecting portion, the clamping claws have elastic teeth, the outer sides of the elastic teeth abut against the inner hole wall of the connecting portion, and the inner sides of the elastic teeth abut against the sealing member.

[0021] Preferably, the sealing member includes a first sealing member that abuts against the inner side of the elastic teeth and a second sealing member provided inside the first sealing member. The top end face of the second sealing member is closed and abuts against the top step of the inner hole wall of the nut. The nut is screwed onto the connecting portion to press the top end face of the second sealing member.

[0022] Preferably, the support seat includes a support portion, a mounting hole is provided on one side of the support portion, and a groove for mounting a sealing washer is provided on the other side of the support portion.

[0023] The signal protection device provided by the present utility model includes a housing, a sealing ring, and a support seat. The housing is used to place products. An installation groove is provided on the outer periphery of the housing, and a sealing ring is provided in the installation groove. An extrusion portion is provided on the inner ring and / or outer ring of the sealing ring; the support seat has an installation portion covering the outside of the housing, and the outside of the installation portion is a water guiding surface. In the case of rain, rainwater can be guided out through the water guiding surface and will not reverse osmosis into the housing, ensuring the sealing inside the housing and the waterproof effect of the product; further, when the inner side of the installation portion and the installation groove are connected through a sealing ring, the extrusion portion of the sealing ring is extruded to form a sealed connection between the housing and the support seat. Specifically, if the extrusion portion is provided on the outer ring of the sealing ring, when the inner side of the installation portion and the installation groove are connected through a sealing ring, the extrusion portion is extruded to ensure the sealed connection between the support seat and the housing, ensuring the sealing and waterproofness of the housing and the waterproof effect of the product, so as to be applicable to relatively harsh working conditions. Brief Description of the Drawings

[0024] 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, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0025] Figure 1 It is a schematic structural diagram of the signal protection device provided by the present utility model;

[0026] Figure 2 is Figure 1 a half-sectional view of;

[0027] Figure 3 It is a schematic connection diagram of the support seat, the sealing ring, and the housing provided by the present utility model;

[0028] Figure 4 It is a schematic structural diagram of the support seat provided by the present utility model;

[0029] Figure 5 It is a schematic structural diagram of the housing provided by the present utility model.

[0030] Figures 1 - 5 In, the reference numerals include:

[0031] 1 - sealing ring; 2 - support seat; 3 - sealing washer; 4 - housing; 5 - clamping claw; 6 - first sealing member; 7 - second sealing member; 8 - nut; 21 - mounting hole; 22 - card slot; 41 - installation groove; 42 - buckle; 43 - connecting portion. Detailed Embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] The core of the present invention is to provide a signal protection device that can drain rainwater, prevent rainwater from reverse osmosis into the housing, and the housing has good sealing performance to ensure the waterproof effect of the product, so as to be applicable to relatively harsh working conditions.

[0034] The signal protection device provided by the present invention is used for waterproofing the product, specifically for waterproofing the product inside the housing 4, to ensure that the product (such as an electronic product that can transmit and receive signals) can maintain good working performance under harsh conditions.

[0035] Please refer to Figure 1 、 Figure 3 On the outer periphery of the housing 4, there is an installation groove 41 for placing the sealing ring 1. The inner ring and / or outer ring of the sealing ring 1 is provided with an extrusion part for interference fit. The extrusion part can specifically be a tooth-shaped structure or a corrugated structure, which is an integrally formed structure of the sealing ring 1. When the sealing ring 1 is installed, the extrusion part will be extruded to ensure the operation effect of the sealing ring 1.

[0036] Specifically, the structural form of the sealing ring 1 can be defined according to the shape of the installation groove 41 on the housing 4, and can be square or circular.

[0037] The support seat 2 has an installation part covering the outside of the housing 4. The outside of the installation part is a water guiding surface. In the case of a large amount of rain, the rainwater can be drained from the water guiding surface, and will not accumulate outside the installation part, and there will be no situation where rainwater leaks into the housing 4; for example, the water guiding surface can be set at a certain inclination to facilitate the drainage of rainwater.

[0038] It should be noted that the installation part of the support seat 2 covering the outside of the housing 4 has a specific covering height that is at least higher than the top of the installation groove 41.

[0039] Optionally, a plurality of installation grooves 41 can be provided on the housing 4, and a corresponding plurality of sealing rings 1 are installed to ensure the sealing effect between the housing 4 and the support seat 2.

[0040] The inner side of the installation part and the installation groove 41 are connected by the sealing ring 1. The sealing ring 1 is extruded between the housing 4 and the support seat 2 to form a sealing effect. Specifically, the extrusion part of the sealing ring 1 is extruded and deformed to ensure the sealing performance between the housing 4 and the support seat 2, prevent dust or rainwater from entering the housing 4, and ensure the working performance of the product inside the housing 4.

[0041] In one embodiment, the extrusion part is arranged on the inner ring of the sealing ring 1. When the sealing ring 1 is installed, an interference fit is formed between the inner ring hole of the sealing ring 1 and the groove body of the installation groove 41. Then, the overall component after connecting the sealing ring 1 and the housing 4 is connected to the inner side of the installation part. Specifically, the outer ring of the sealing ring 1 is connected to the inner side of the installation part to keep the sealing ring 1 pressed between the housing 4 and the support seat 2, ensuring the sealing effect between the housing 4 and the support seat 2, so as to ensure the waterproof and dustproof properties of the housing 4.

[0042] In another embodiment, the extrusion part is arranged on the outer ring of the sealing ring 1. When the sealing ring 1 is installed, an interference fit is formed between the overall component after connecting the sealing ring 1 and the housing 4 and the inner side of the installation part, ensuring the sealing ring 1 is pressed between the housing 4 and the support seat 2, and ensuring the waterproof and dustproof properties of the housing 4.

[0043] In another embodiment, the extrusion part is arranged on both the inner and outer rings of the sealing ring 1. When the sealing ring 1 is installed, the inner ring of the sealing ring 1 is first connected to the installation groove 41, and then the whole of the sealing ring 1 and the housing 4 is connected inside the installation part, so that the outer ring of the sealing ring 1 is connected to the installation part, forming extrusion of the inner and outer rings of the sealing ring 1, ensuring the sealing effect between the housing 4 and the support seat 2, and ensuring the waterproof effect of the housing 4.

[0044] The above signal protection device includes a housing 4, a sealing ring 1 and a support seat 2. Among them, the housing 4 is used to place products. An installation groove 41 is provided on the outer periphery of the housing 4, and a sealing ring 1 is provided in the installation groove 41. An extrusion part is provided on the inner ring and / or outer ring of the sealing ring 1; the support seat 2 has an installation part covering the outside of the housing 4, and the outside of the installation part is a water guiding surface. In case of rain, the rainwater can be led out through the water guiding surface and will not reverse osmosis into the housing 4, ensuring the sealing inside the housing 4 and the waterproof effect of the product; further, when the inner side of the installation part and the installation groove 41 are connected through the sealing ring 1, the extrusion part of the sealing ring 1 is extruded to form a sealed connection between the housing 4 and the support seat 2. Specifically, if the extrusion part is arranged on the outer ring of the sealing ring, when the inner side of the installation part and the installation groove 41 are connected through the sealing ring 1, the extrusion part is extruded to ensure the sealed connection between the support seat 2 and the housing 4, ensuring the sealing and waterproof properties of the housing 4, and the waterproof effect of the product, so as to be applicable to relatively harsh working conditions.

[0045] On the basis of the above embodiments, the installation part includes an installation hole 21 provided on the support seat 2, and a water guiding surface is provided on the outer wall surface of the installation hole 21;

[0046] The inner ring of the sealing ring 1 fits with the installation groove 41, and the extrusion part on the outer ring of the sealing ring 1 has an interference fit with the inner wall of the installation hole 21.

[0047] Please refer to Figure 3 、 Figure 4, The installation part specifically includes an installation hole 21 provided on the support base 2. The inner wall surface of the installation hole 21 is used to connect with the sealing ring 1, and the outer wall surface of the installation hole 21 is used to set a water guiding surface.

[0048] Specifically, the inner ring of the sealing ring 1 fits with the groove body of the installation groove 41, and the outer ring of the sealing ring 1 is in interference fit with the inner wall of the installation hole 21 to ensure the pressing effect of the sealing ring 1. When installing the sealing ring 1, the sealing ring 1 is first connected to the housing 4, and then the overall structure after connection is connected to the installation hole 21.

[0049] In this embodiment, the size and shape of the installation hole 21 are designed according to the structures of the sealing ring 1 and the installation groove 41 without limitation.

[0050] On the basis of any of the above embodiments, the extrusion part is a corrugated surface provided on the outer ring of the sealing ring 1, and the corrugated surface contacts the inner wall surface of the installation hole 21 to form extrusion.

[0051] Please refer to Figure 3 , Figure 4 , The extrusion part is specifically a corrugated surface provided on the sealing ring 1, which improves the interference degree of the sealing ring 1 between the support base 2 and the housing 4 to ensure the waterproofness of the housing 4; in addition, the corrugated structure can form grooves, and the grooves have the effect of accumulating water and dust. When the sealing ring 1 is removed from the support base 2 and the housing 4, the accumulated water and dust can be taken out, avoiding the influence of accumulated water and dust from entering the housing 4 or adhering to the housing 4 and the support base 2, and preventing the housing 4 and the support base 2 from being contaminated.

[0052] The number of layers of the specific corrugated surface is not limited, and it is preferably set to multiple layers, and the gaps between the multiple layers are preferably consistent.

[0053] On the basis of any of the above embodiments, an installation groove 41 is provided on the outer periphery of the bottom of the housing 4, and the width of the installation groove 41 is less than or equal to the hole depth of the installation hole 21.

[0054] Please refer to Figures 3 - 5 , An installation groove 41 is provided on the outer periphery of the bottom of the housing 4, and a corresponding sealing ring 1 is provided. The installation groove 41 has a certain groove depth for installing the sealing ring 1.

[0055] The groove width of the installation groove 41 is less than or equal to the hole depth of the installation hole 21, ensuring that the installation hole 21 can completely cover the installation groove 41 and the sealing ring 1 as a whole, ensuring the covering effect of the support base 2 on the housing 4, and ensuring the waterproofness and airtightness of the housing 4.

[0056] When the groove width of the installation groove 41 is less than the hole depth of the installation hole 21, the difference between the two should not be too large to avoid the excessive depth of the installation hole 21 affecting the installation of the sealing ring 1.

[0057] Based on any of the above embodiments, several snap buttons 42 are provided on the housing 4. The snap buttons 42 are provided above the mounting groove 41 and are snap-connected to the card slots 22 on the support base 2. Either the snap button 42 or the card slot 22 is an elastic member;

[0058] The elastic member can expand outward or retract inward along its connection point with the housing 4;

[0059] Or, the elastic member can expand outward or retract inward along its connection point with the support base 2.

[0060] Please refer to Figures 4 - 5 , for the convenience of installing the sealing ring 1, snap buttons 42 are provided on the housing 4, and corresponding card slots 22 are provided on the support base 2. Through the snap connection of the support base 2 and the card slots 22, the overall components of the sealing ring 1 and the housing 4 and the support base 2 are convenient for assembly and disassembly.

[0061] By inserting the snap button 42 into the card slot 22, either the snap button 42 or the card slot 22 is an elastic member, so that the support base 2 and the housing 4 do not need to be precisely aligned when connecting. As long as the snap button 42 on the housing 4 can extend downward into the card slot 22, the elastic force of the elastic member is used to achieve reliable snap connection between the snap button 42 and the card slot 22.

[0062] As Figure 4 and Figure 5 shown, the opening of the card slot 22 is arranged towards the center of the support base 2. The housing 4 moves downward to drive the snap button 42 to move and extend into the opening, and the quick connection between the support base 2 and the housing 4 can be completed, improving the assembly efficiency and reducing the time cost.

[0063] In one embodiment, the snap button 42 is an elastic member. The elastic member can expand outward or retract inward along its connection point with the housing 4. When manually pressing the snap button 42 to make it retract inward, space is vacated to facilitate the snap button 42 to reach the position of the card slot 22; after reaching the position, release the snap button 42 to make it extend outward under its own elastic force to be snap-connected and limited in the card slot 22, completing the connection between the support base 2 and the housing 4 and pressing the sealing ring 1 tightly.

[0064] In another embodiment, the card slot 22 is an elastic member. The elastic member can expand outward or retract inward along its connection point with the support base 2. Manually send the snap button 42 to the position of the card slot 22. At this time, the card slot 22 can be manually expanded outward first. After the snap button 42 reaches the card slot 22, release the card slot 22 to make it retract inward under its own elastic force to snap-connect and limit the snap button 42, completing the connection between the support base 2 and the housing 4 and pressing the sealing ring 1 tightly.

[0065] Preferably, two groups of snap buttons 42 and card slots 22 are provided, which is convenient for manual grasping for installation.

[0066] In this embodiment, it should be noted that the buckle 42 has at least a clamping protrusion for clamping with the clamping groove 22. When the buckle 42 extends into the clamping groove 22 and the clamping protrusion is clamped at the corresponding position on the clamping groove 22, the support base 2 and the housing 4 are completely connected and fixed.

[0067] Based on any of the above embodiments, the buckle 42 is an elastic buckle. The elastic buckle can retract inward along its connection point with the housing 4 to insert into the clamping groove 22 and abut against the inner wall of the clamping groove 22 under the action of its elastic force.

[0068] In this embodiment, the buckle 42 is an elastic member. After the sealing ring 1 is connected to the installation groove 41, move the housing 4 and press the buckle 42 to retract it inward until it reaches the clamping groove 22, and then release the buckle 42 to make it abut against the inner wall of the clamping groove 22 under the action of its own elastic force. At this time, the connection between the support base 2 and the housing 4 tightens the sealing ring 1.

[0069] When disassembling, pressing the buckle 42 can move the housing 4 upward to release the connection between the buckle 42 and the support base 2 and release the connection between the sealing ring 1 and the support base 2. The assembly and disassembly are relatively simple, easy to operate, and improve the operation efficiency.

[0070] Based on any of the above embodiments, a nut 8 is provided at the top of the housing 4. The nut 8 is sleeved on the connecting portion 43 of the housing 4 to press the sealing member for plugging the top of the housing 4 inside the connecting portion 43.

[0071] Please refer to Figure 1 、 Figure 2 、 Figure 5 , the nut 8 is provided at the top of the housing 4. The nut 8 is sleeved on the connecting portion 43 at the top of the housing 4. A sealing member is provided inside the connecting portion 43 of the housing 4. The sealing member here is a component for plugging the connecting portion 43.

[0072] When the nut 8 is connected to the connecting portion 43, the sealing member can be pressed by tightening the nut 8 to ensure the sealing effect at the top of the housing 4.

[0073] If the top of the housing 4 needs to be exposed, by removing the nut 8 and then taking out the sealing member, the inside of the housing 4 can be observed.

[0074] Through the setting of the sealing member at the top of the housing 4 and the sealing ring 1, the waterproofness of the housing 4 is ensured, and the reliable use of the product under harsh conditions is guaranteed.

[0075] Based on any of the above embodiments, a clamping claw 5 is provided inside the connecting portion 43. The clamping claw 5 has elastic teeth. The outer side of the elastic teeth abuts against the inner hole wall of the connecting portion 43, and the inner side of the elastic teeth abuts against the sealing member.

[0076] Please refer to Figure 2, Figure 5 A clamping claw 5 is provided inside the connecting portion 43. Elastic teeth are provided on the circumference of the clamping claw 5, and the elastic teeth are used to press the seal.

[0077] Specifically, the outer side of the clamping claw 5 abuts against the inner hole wall of the connecting portion 43. When the seal is installed, the seal extrudes the elastic teeth to cause the elastic teeth to generate a reverse resistance force to extrude the seal, ensuring the reliable stability of the seal installed on the inner hole wall of the connecting portion 43 and ensuring the sealing effect at the top of the housing 4.

[0078] It should be noted that there is at least a step on the inner hole wall of the connecting portion 43 for placing the clamping claw 5 to ensure the overall limiting and supporting of the clamping claw 5.

[0079] Based on any of the above embodiments, the seal includes a first seal 6 that abuts against the inner side of the elastic teeth and a second seal 7 provided inside the first seal 6. The top end face of the second seal 7 is closed and abuts against the top step of the inner hole wall of the nut 8. The nut 8 is screwed onto the connecting portion 43 to press the top end face of the second seal 7.

[0080] Please refer to Figure 5 , the seal includes a first seal 6 and a second seal 7. The second seal 7 is sleeved inside the first seal 6. The outer ring of the first seal 6 abuts against the inner side of the elastic teeth of the clamping claw 5 and presses the elastic teeth against the inner hole wall of the connecting portion 43.

[0081] The top end face of the second seal 7 is closed and abuts against the top step of the inner hole wall of the nut 8. The nut 8 is screwed onto the thread outside the connecting portion 43 to press the top end face of the second seal 7, ensuring the fastening reliability of the overall connection of the seal and the sealing effect.

[0082] Based on any of the above embodiments, the support seat 2 includes a support portion. An installation hole 21 is provided on one side of the support portion, and a groove for installing the sealing washer 3 is provided on the other side of the support portion.

[0083] Please refer to Figure 4 , an installation hole 21 is provided on one side of the support portion for installing the sealing ring 1. A groove is provided on the other side of the support portion. This groove is used to install the sealing washer 3 and there is an interference fit between them to ensure the overall sealing of the support seat 2. Specifically Figure 4 speaking, the sealing washer 3 is arranged in the groove on the right side of the support seat 2, and the size of this groove is larger than the size of the installation hole 21.

[0084] 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. The same or similar parts among the embodiments can be referred to each other.

[0085] The above has introduced in detail a signal protection device provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A signal protection device for waterproofing of products, characterized in that, Comprising: A housing (4), on the outer periphery of which there is provided an installation groove (41) and which is internally used for placing a product; A sealing ring (1), arranged in the installation groove (41), and on the inner ring and / or outer ring of the sealing ring (1) there is provided an extrusion part; A support seat (2), having an installation part covering the outside of the housing (4), the outside of the installation part being a water guiding surface, when the inside of the installation part and the installation groove (41) are connected through the sealing ring (1), the extrusion part of the sealing ring (1) is extruded to form the sealing of the housing (4).

2. The signal protection device according to claim 1, characterized in that, The installation part includes an installation hole (21) provided on the support seat (2), and on the outer wall surface of the installation hole (21) there is provided the water guiding surface; The inner ring of the sealing ring (1) fits with the installation groove (41), and the extrusion part on the outer ring of the sealing ring (1) is in interference fit with the inner wall of the installation hole (21).

3. The signal protection device according to claim 2, wherein, The extrusion part is a corrugated surface arranged on the outer ring of the sealing ring (1), and the corrugated surface contacts the inner wall surface of the installation hole (21) to form extrusion.

4. The signal protection device according to claim 3, wherein On the outer periphery of the bottom of the housing (4) there is provided one installation groove (41), and the width of the installation groove (41) is less than or equal to the hole depth of the installation hole (21).

5. The signal protection device according to claim 1, wherein, On the housing (4) there are provided a plurality of snap fasteners (42), the snap fasteners (42) are arranged above the installation groove (41) and are snap-connected with a clamping groove (22) on the support seat (2), and either one of the snap fasteners (42) and the clamping groove (22) is an elastic member; The elastic member can expand outwards or retract inwards along its connection point with the housing (4); Or, the elastic member can expand outwards or retract inwards along its connection point with the support seat (2).

6. The signal protection device according to claim 5, wherein The snap fastener (42) is an elastic snap fastener, and the elastic snap fastener can retract inwards along its connection point with the housing (4) to insert into the clamping groove (22) and abuts against the inner wall of the clamping groove (22) under the action of its elastic force.

7. The signal protection device according to claim 1, characterized in that On the top of the housing (4) there is provided a nut (8), the nut (8) is sleeved on a connection part (43) on the housing (4) to compress a sealing member inside the connection part (43) for plugging the top of the housing (4).

8. The signal protection device according to claim 7, characterized in that, Inside the connection part (43) there is provided a clamping claw (5), the clamping claw (5) has elastic teeth, the outside of the elastic teeth abuts against the inner hole wall of the connection part (43), and the inside of the elastic teeth abuts against the sealing member.

9. The signal protection device according to claim 8, characterized in that, The sealing member includes a first sealing member (6) abutting against the inside of the elastic teeth and a second sealing member (7) arranged inside the first sealing member (6), the top end face of the second sealing member (7) is closed and abuts against the top step of the inner hole wall of the nut (8), and the nut (8) is screwed on the connection part (43) to compress the top end face of the second sealing member (7).

10. The signal protection device according to claim 2, wherein, The support seat (2) includes a support part, on one side of the support part there is provided the installation hole (21), and on the other side of the support part there is provided a groove body for installing a sealing gasket (3).

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