Pressure release valve and underwater equipment
By inserting a mounting hole in the main body of the pressure relief valve and setting an indicator light, the problem of single function of the pressure relief valve and complex structure of the underwater equipment is solved, and the display function and cost reduction are achieved.
Patent Information
- Application Number
- CN202422033493.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-21
AI Technical Summary
The existing pressure relief valve has a single function. When adding display function, install holes need to be opened in the electronic cabin of the underwater equipment, which affects the sealing and increases production costs.
A transparent or translucent pressure relief valve main body is designed with a built-in mounting hole, and an indicator light is set there to indicate the status of the underwater equipment and simplify the structure of the electronic compartment housing.
The pressure relief valve has a display function, which reduces the number of holes in the electronic compartment housing, simplifies the structure, and reduces production costs.
Smart Images
Figure CN223137057U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of underwater equipment, in particular to a pressure relief valve and an underwater equipment. Background Art
[0002] The pressure relief valve is mainly applied to pressure vessels such as equipment or pipelines with a closed system, for example, an underwater equipment with a sealed cabin and a battery compartment. The pressure relief valve is used to ensure that the pressure inside the equipment is within a safe range and prevent dangerous accidents caused by accidental situations such as battery explosion or combustion inside the equipment.
[0003] The existing pressure relief valve has a single function and only has a simple pressure relief function. When the underwater equipment needs to add a display function, a separate display component needs to be added, and an installation hole needs to be opened on the electronic cabin housing of the underwater equipment, which not only affects the sealing performance of the electronic cabin housing but also makes the electronic cabin housing complicated and increases the production cost. Summary of the Utility Model
[0004] The utility model provides a pressure relief valve to solve the problems of the single function of the existing pressure relief valve, the complicated structure of the underwater equipment, and the high production cost.
[0005] The utility model provides a pressure relief valve, comprising:
[0006] A pressure relief valve body, which is arranged in a pressure relief hole of an electronic cabin housing and is in sealing cooperation with the inner wall of the pressure relief hole; the material of the pressure relief valve body is a transparent or semi-transparent material, and an installation hole is arranged inside the pressure relief valve body.
[0007] An indicator light, which is arranged in the installation hole, is electrically connected to a circuit board inside the electronic cabin housing, and is used to indicate the state of the underwater equipment.
[0008] According to a pressure relief valve provided by the utility model, an electronic cabin is arranged inside the electronic cabin housing, the installation hole is located at one end of the pressure relief valve body close to the electronic cabin, and the indicator light is fixed in the installation hole through a colloid.
[0009] According to a pressure relief valve provided by the utility model, the pressure relief valve body comprises:
[0010] A sealing section, which is in sealing cooperation with the inner wall of the pressure relief hole;
[0011] A limiting section, which is connected to one end of the sealing section close to the electronic cabin, and the installation hole is located inside the limiting section.
[0012] According to a pressure relief valve provided by the present utility model, a limiting groove is provided on the outer peripheral surface of the limiting section, and the limiting groove is in limiting cooperation with a limiting member arranged in the electronic cabin to prevent the pressure in the electronic cabin from being too high and pressing the pressure relief valve out of the pressure relief hole.
[0013] According to a pressure relief valve provided by the present utility model, the limiting groove extends circumferentially along the outer peripheral surface of the limiting section to form an annular groove body, and one end of the limiting member close to the pressure relief valve is inserted into the limiting groove.
[0014] According to a pressure relief valve provided by the present utility model, a groove is provided on either the outer peripheral surface of the sealing section or the inner wall of the mounting hole, and a sealing ring is arranged in the groove, and the sealing section is in sealing cooperation with the inner wall of the pressure relief hole through the sealing ring.
[0015] According to a pressure relief valve provided by the present utility model, the pressure relief valve body is adapted to switch between a sealed state and a pressure relief state. In the sealed state, the sealing ring is located in the mounting hole and is in sealing cooperation with the inner wall of the pressure relief hole, and the limiting member abuts against the groove wall on the side of the limiting groove away from the electronic cabin; in the pressure relief state, the sealing ring is located outside the mounting hole, and the limiting member abuts against the groove wall on the side of the limiting groove close to the electronic cabin.
[0016] According to a pressure relief valve provided by the present utility model, a limiting surface is provided at the connection between the limiting section and the sealing section, and a limiting boss is provided on the inner wall of the pressure relief hole, and the limiting surface is in limiting cooperation with the limiting boss to prevent the pressure outside the electronic cabin housing from pressing the pressure relief valve into the electronic cabin.
[0017] According to a pressure relief valve provided by the present utility model, the cross-sectional area of the pressure relief valve body is smaller than the cross-sectional area of the pressure relief hole, so as to form a gap between the pressure relief valve body and the inner wall of the mounting hole; in the pressure relief state, the electronic cabin is communicated with the outside of the electronic cabin housing through the gap.
[0018] The present utility model also provides an underwater device, including an electronic cabin housing and the pressure relief valve according to any one of the above.
[0019] For the pressure relief valve provided by the present utility model, by providing a mounting hole inside the pressure relief valve body and arranging the indicator light in the mounting hole, since the material of the pressure relief valve body is a transparent or semi-transparent material, when the indicator light is lit, the state of the underwater device can be understood from the outside of the electronic cabin housing according to the indication of the indicator light, so that the pressure relief valve not only has a pressure relief function but also has a display function; in addition, arranging the indicator light in the mounting hole reduces the number of openings in the electronic cabin housing, simplifies the structure of the electronic cabin housing, and reduces the production cost. Description of the Drawings
[0020] To more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0021] Figure 1 It is a three-dimensional schematic diagram of the underwater device provided by the present utility model.
[0022] Figure 2 It is one of the side view sectional structure diagrams of the pressure relief valve provided by the present utility model.
[0023] Figure 3 It is the second side view sectional structure diagram of the pressure relief valve provided by the present utility model.
[0024] Figure 4 It is the three-dimensional structure diagram of the pressure relief valve provided by the present utility model.
[0025] Reference numerals:
[0026] 100, pressure relief valve body; 110, mounting hole; 120, limiting section; 130, sealing section; 140, limiting groove; 150, sealing ring; 160, limiting surface; 200, indicator light; 300, electronic cabin housing; 310, pressure relief hole; 320, limiting member; 330, limiting boss. Specific embodiments
[0027] To make the purpose, technical solutions and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model in conjunction with the drawings in the present utility model. Obviously, the described embodiments are some embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0028] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model 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 should not be construed as a limitation on the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0029] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.
[0030] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below", and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.
[0031] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0032] The following is combined with Figures 1 - 4 to describe the specific structure and working principle of the pressure relief valve of the present utility model.
[0033] Figure 2 Figure 1 shows one of the side cross-sectional structural views of the pressure relief valve provided by the present utility model. Figure 3 Figure 2 shows another side cross-sectional structural view of the pressure relief valve provided by the present utility model. As Figure 2 and Figure 3 shown, the pressure relief valve includes a pressure relief valve body 100 and an indicator light 200. The pressure relief valve body 100 is disposed in a pressure relief hole 310 of an electronic cabin housing 300 and is sealingly fitted with the inner wall of the pressure relief hole 310. One end of the pressure relief hole 310 communicates with the electronic cabin, and the other end of the pressure relief hole 310 communicates with the outside of the electronic cabin housing 300. The pressure relief valve body 100 is made of a transparent or semi-transparent material, and an installation hole 110 is provided inside the pressure relief valve body 100. The indicator light 200 is disposed in the installation hole 110. The indicator light 200 is electrically connected to a circuit board in the electronic cabin housing 300, and the indicator light 200 is used to indicate the state.
[0034] For the pressure relief valve provided by the present utility model, by providing the installation hole 110 inside the pressure relief valve body 100 and disposing the indicator light 200 in the installation hole 110, since the pressure relief valve body 100 is made of a transparent or semi-transparent material, when the indicator light 200 is lit, the state of the underwater device can be understood from the outside of the electronic cabin housing 300 according to the indication of the indicator light 200, so that the pressure relief valve not only has a pressure relief function but also has a display function. In addition, by disposing the indicator light 200 in the installation hole 110, the number of openings in the electronic cabin housing 300 is reduced, the structure of the electronic cabin housing 300 is simplified, and the production cost is reduced.
[0035] In an embodiment of the present utility model, Figure 4 Figure 3 shows the three-dimensional structural view of the pressure relief valve provided by the present utility model. As Figure 4 shown, the pressure relief valve body 100 has a columnar structure, and the cross-sectional shape of the pressure relief valve body 100 is adapted to the cross-sectional shape of the pressure relief hole 310. In this embodiment, the cross-section of the pressure relief hole 310 is circular, so the cross-section of the pressure relief valve body 100 is circular. Of course, the cross-sectional shape of the pressure relief valve body 100 is not limited thereto, and it may also be oval, rectangular or other shapes.
[0036] In an embodiment of the present utility model, the inside of the electronic cabin housing 300 has an electronic cabin for installing a circuit board. The installation hole 110 is located at one end of the pressure relief valve body 100 close to the electronic cabin. Specifically, as Figure 2As shown, the mounting hole 110 is arranged along the length direction of the pressure relief valve body 100, and the mounting hole 110 is coaxially arranged with the pressure relief valve body 100, that is, the central axis of the mounting hole 110 and the central axis of the pressure relief valve body 100 are the same straight line. The shape of the mounting hole 110 is adapted to the shape of the indicator light 200, and the shape of the mounting hole 110 is specifically determined according to the shape of the indicator light 200.
[0037] The indicator light 200 is fixed in the mounting hole 110 through a colloid to improve the stability of the indicator light 200. Preferably, the colloid is vulcanized rubber. Of course, the fixing method of the indicator light 200 is not limited to this. The indicator light 200 can also be in interference fit with the mounting hole 110, or an end cover is provided at the port of the mounting hole 110, and the indicator light 200 is encapsulated in the mounting hole 110 through the end cover. The end cover is in interference fit with the port of the mounting hole 110 or the end cover is fixed to the port of the mounting hole 110 through a colloid.
[0038] Preferably, heat-conducting silicone grease is filled between the end cover and the indicator light 200. Since the indicator light 200 generates heat during long-term operation, by filling heat-conducting silicone grease between the end cover and the indicator light 200, the heat generated by the indicator light 200 can be conducted to the outside of the mounting hole 110, avoiding damage to the indicator light 200 due to overheating.
[0039] Preferably, the indicator light 200 is an LED lamp, and the LED lamp has the advantages of high brightness, low energy consumption and small generated heat. Further, the indicator light 200 is a multi-color LED lamp, and the indicator light 200 can indicate different states of the underwater device by displaying different colors. For example, when the indicator light 200 outputs green light for a long time, it means that the underwater device is working normally; when the indicator light 200 outputs red light for a long time, it means that the underwater device has an abnormality; when the indicator light 200 outputs red light and flashes continuously, it means that the underwater device has a low battery, reminding the operator to charge in time.
[0040] In a preferred embodiment of the present invention, since the light output by the indicator light 200 needs to pass through the pressure relief valve body 100 for indication, the more light passes through the end of the pressure relief valve body 100 away from the electronic cabin, the better the indication effect. In order to make more light pass through the end of the pressure relief valve body 100 away from the electronic cabin, the inner wall of the mounting hole 110 is coated with a reflective coating, and the light output by the indicator light 200 is reflected multiple times by the reflective coating and finally output through the end of the pressure relief valve body 100 away from the electronic cabin.
[0041] In a preferred embodiment of the present invention, as Figure 2 and Figure 3As shown in the figure, the pressure relief valve body 100 includes a sealing section 130 and a limiting section 120. The sealing section 130 is in sealing fit with the inner wall of the pressure relief hole 310. The limiting section 120 is connected to one end of the sealing section 130 close to the electronic cabin. Preferably, the limiting section 120 and the sealing section 130 are integrally formed. Specifically, the limiting section 120 is located on the side close to the electronic cabin, that is, the limiting section 120 is located Figure 2 on the left side in Figure 2 . The sealing section 130 is located on the side far from the electronic cabin, that is, the sealing section 130 is located on the right side in
[0042] . The outer diameter of the sealing section 130 is larger than the outer diameter of the limiting section 120. The mounting hole 110 is located inside the limiting section 120.
[0043] In an embodiment of the present utility model, a limiting groove 140 is provided on the outer peripheral surface of the limiting section 120. The limiting groove 140 is in limiting fit with a limiting member 320 provided in the electronic cabin to prevent the pressure in the electronic cabin from being too high and pressing the pressure relief valve out of the pressure relief hole 310. Figure 2
[0044] Specifically, as shown in Figure 2 and Figure 3 , the limiting member 320 is a screw. Internal threads are provided on the inner wall of the limiting hole. The limiting member 320 is in threaded fit with the limiting hole. When the screw is tightened, one end of the screw extends out of one end of the limiting hole and is inserted into the limiting groove 140, thereby realizing the limiting fit between the screw and the limiting groove 140. When the screw is loosened, one end of the screw returns into the limiting hole, and one end of the screw is separated from the limiting groove 140. At this time, the pressure relief valve can be taken out of the pressure relief hole 310.
[0045] In another specific embodiment of the present utility model, the limiting member 320 is a ball screw. Similarly, internal threads are provided on the inner wall of the limiting hole, and the ball screw is in threaded cooperation with the limiting hole. The ball of the ball screw is embedded in the limiting groove 140 and is in limiting cooperation with the limiting groove 140. Since the ball of the ball screw can move up and down, the ball screw can be installed in the limiting hole before installing the pressure relief valve. When installing the pressure relief valve, only need to directly insert the pressure relief valve into the pressure relief hole 310. After the limiting groove 140 reaches the predetermined position, the ball of the ball screw will automatically be embedded in the limiting groove 140, realizing the limiting cooperation between the limiting groove 140 and the limiting member 320.
[0046] In one embodiment of the present utility model, as Figure 2 and Figure 3 shown, the limiting groove 140 extends circumferentially along the outer peripheral surface of the limiting section 120 to form an annular groove body, and one end of the limiting member 320 close to the pressure relief valve is inserted into the limiting groove 140. Compared with using a circular limiting groove, since the annular groove body extends circumferentially along the outer peripheral surface of the limiting section 120, the annular groove body has a larger distribution area, and it is easier for the limiting member 320 to enter the annular groove body. When installing the limiting member 320, only need to extend one end of the limiting member 320 from one end of the limiting hole, and one end of the limiting member 320 will automatically enter the annular groove body without rotating the pressure relief valve to adjust the position of the limiting groove to align the limiting groove with the limiting hole, making the installation more convenient.
[0047] In one embodiment of the present utility model, a groove is provided on the outer peripheral surface of the sealing section 130, and a sealing ring 150 is provided in the groove. The sealing ring 150 protrudes relative to the edge of the groove, and the outer diameter of the sealing ring 150 is greater than the inner diameter of the pressure relief hole 310. When the pressure relief valve is inserted into the pressure relief hole 310, the inner wall of the pressure relief hole 310 is in contact with the sealing ring 150, thereby realizing the sealing cooperation between the sealing ring 150 and the inner wall of the pressure relief hole 310. In this embodiment, there is one groove. Of course, when the length of the sealing section 130 is relatively long, two grooves or more grooves can also be provided. The multiple grooves are arranged at intervals along the length direction of the sealing section 130, and a sealing ring 150 is provided in each groove. By increasing the number of sealing rings 150, the sealing performance of the underwater device can be improved.
[0048] In another embodiment of the present utility model, a groove is provided on the inner wall of the installation hole 110, and a sealing ring 150 is provided in the groove. The inner diameter of the sealing ring 150 is smaller than the outer diameter of the pressure relief valve. When the pressure relief valve is inserted into the pressure relief hole 310, the sealing ring 150 is in close contact with the outer surface of the pressure relief valve, thereby realizing the sealing cooperation between the pressure relief valve and the inner wall of the pressure relief hole 310.
[0049] In one embodiment of the present utility model, as Figure 2 and Figure 3As shown, the pressure relief valve body 100 is adapted to switch between a sealed state and a pressure relief state. In the sealed state, the pressure relief valve body 100 is in the Figure 2 leftmost position in the figure. At this time, the sealing ring 150 is located in the mounting hole 110 and is in sealing fit with the inner wall of the pressure relief hole 310. The limiting member 320 abuts against the groove wall on the side of the limiting groove 140 away from the electronic cabin, that is, one end of the limiting member 320 abuts against the right groove wall of the limiting groove 140, thereby preventing the pressure outside the electronic cabin housing 300 from pressing the pressure relief valve into the electronic cabin.
[0050] When the underwater device is on the deck, if the battery inside the electronic cabin catches fire or expands, the pressure inside the electronic cabin increases. When the pressure inside the electronic cabin is greater than the pressure outside the electronic cabin housing 300, under the action of the pressure, the pressure relief valve switches from the sealed state to the pressure relief state. At this time, the pressure relief valve body 100 moves from the Figure 2 leftmost position in the figure to the rightmost position. At this time, the sealing ring 150 is located outside the pressure relief hole 310. The limiting member 320 abuts against the groove wall on the side of the limiting groove 140 close to the electronic cabin, that is, one end of the limiting member 320 abuts against the left groove wall of the limiting groove 140. The sealing ring 150 is separated from the inner wall of the pressure relief hole 310. Since the sealing ring 150 loses its sealing function, the gas inside the electronic cabin is discharged to the outside of the electronic cabin housing 300 through the gap between the pressure relief valve body 100 and the inner wall of the pressure relief hole 310. Since the limiting member 320 abuts against the groove wall on the side of the limiting groove 140 close to the electronic cabin, the pressure relief valve can be prevented from being pressed out of the pressure relief hole 310.
[0051] In an embodiment of the present invention, the width of the limiting groove 140 (the dimension of the limiting groove 140 in the Figure 2 left - right direction in the figure) is greater than or equal to the minimum pressure relief displacement distance of the pressure relief valve body 100. The minimum pressure relief displacement distance of the pressure relief valve body 100 refers to the distance between the pressure relief valve moving leftward from the sealed position to the position where it starts to relieve pressure. The width of the limiting groove 140 determines the displacement distance of the pressure relief valve in the pressure relief valve hole. Therefore, to ensure that the pressure relief valve can switch from the sealed state to the pressure relief state, it is necessary to ensure that the width of the limiting groove 140 is greater than or equal to the minimum pressure relief displacement distance of the pressure relief valve body 100.
[0052] In an embodiment of the present invention, as Figure 2 shown, a limiting surface 160 is provided at the connection between the limiting section 120 and the sealing section 130. Since the outer diameter of the sealing section 130 is greater than the outer diameter of the limiting section 120, a limiting surface 160 that is in limiting fit with the limiting boss 330 is formed at the connection between the limiting section 120 and the sealing section 130. The limiting surface 160 is annular and the limiting surface 160 is inclined.
[0053] The inner wall of the pressure relief hole 310 is provided with a limiting boss 330. The limiting boss 330 can be continuous or circumferentially spaced along the inner wall of the pressure relief hole 310. In this embodiment, the pressure relief hole 310 is composed of two pressure relief hole segments. The inner diameter of the inner pressure relief hole segment is smaller than that of the outer pressure relief hole segment. Therefore, a limiting boss 330 is formed at the connection between the inner pressure relief hole segment and the outer pressure relief hole segment. The limiting surface 160 is in limiting cooperation with the limiting boss 330 to prevent the pressure outside the electronic cabin housing 300 from pressing the pressure relief valve into the electronic cabin. Preferably, the side of the limiting boss 330 facing away from the electronic cabin is an inclined surface, and the limiting surface 160 abuts against the inclined surface of the limiting boss 330, thereby realizing the limit.
[0054] In an embodiment of the present utility model, the cross-sectional area of the pressure relief valve body 100 is smaller than the cross-sectional area of the pressure relief hole 310, so as to form a gap between the pressure relief valve body 100 and the inner wall of the mounting hole 110; specifically, the outer diameter of the pressure relief valve body 100 is smaller than the inner diameter of the pressure relief hole 310, so that a gap can be formed between the pressure relief valve body 100 and the inner wall of the mounting hole 110. In the pressure relief state, the sealing ring 150 loses its sealing function, and the electronic cabin communicates with the outside of the electronic cabin housing 300 through the gap, and the pressure inside the electronic cabin can be released to the outside of the electronic cabin housing 300 through the gap.
[0055] In an embodiment of the present utility model, a pressure relief groove (not shown) is provided on the outer peripheral surface of the pressure relief valve body 100. The pressure relief groove extends along the length direction of the pressure relief valve body 100, and the pressure relief groove extends from the end of the limiting section 120 away from the sealing section 130 to the edge of the groove. In the sealed state, the sealing ring 150 is in sealing cooperation with the inner wall of the pressure relief hole 310, and the pressure relief groove is located on the left side of the sealing ring 150, which will not affect the sealing performance of the pressure relief valve. In the pressure relief state, since the pressure relief valve moves to the rightmost side, the pressure relief groove is connected to the outside, and the pressure inside the electronic cabin can be released to the outside of the electronic cabin housing 300 not only through the gap but also through the pressure relief groove. Since the gap between the pressure relief valve body 100 and the inner wall of the mounting hole 110 is small, it is easy to be blocked. By providing the pressure relief groove to cooperate with the gap for pressure relief, the pressure relief efficiency of the pressure relief valve is effectively improved.
[0056] The present utility model also provides an underwater device. Figure 1 Illustrates a three-dimensional schematic diagram of the underwater device provided by the present utility model, as Figure 1 shown, the underwater device includes an electronic cabin housing and the pressure relief valve described in any one of the above embodiments.
[0057] The underwater device can be an underwater acoustic device or other types of underwater devices.
[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A pressure relief valve, characterized in that, Comprising: A pressure relief valve body (100), which is arranged in a pressure relief hole (310) of an electronic cabin housing (300) and is in sealed cooperation with the inner wall of the pressure relief hole (310); the material of the pressure relief valve body (100) is a transparent or semi-transparent material, and an installation hole (110) is arranged inside the pressure relief valve body (100); An indicator light (200), which is arranged in the installation hole (110), the indicator light (200) is electrically connected to a circuit board inside the electronic cabin housing (300), and the indicator light (200) is used to indicate the state of the underwater device.
2. The pressure relief valve according to claim 1, characterized in that, The inside of the electronic cabin housing (300) has an electronic cabin, the installation hole (110) is located at one end of the pressure relief valve body (100) close to the electronic cabin, and the indicator light (200) is fixed in the installation hole (110) through a colloid.
3. The pressure relief valve according to claim 1, characterized in that, The pressure relief valve body (100) includes: A sealing section (130), which is in sealed cooperation with the inner wall of the pressure relief hole (310); A limiting section (120), which is connected to one end of the sealing section (130) close to the electronic cabin, and the installation hole (110) is located inside the limiting section (120).
4. The pressure relief valve according to claim 3, wherein A limiting groove (140) is arranged on the outer peripheral surface of the limiting section (120), and the limiting groove (140) is in limiting cooperation with a limiting member (320) arranged in the electronic cabin to prevent the pressure in the electronic cabin from being too high and pressing the pressure relief valve out of the pressure relief hole (310).
5. The pressure relief valve according to claim 4, characterized in that, The limiting groove (140) extends circumferentially along the outer peripheral surface of the limiting section (120) to form an annular groove body, and one end of the limiting member (320) close to the pressure relief valve is inserted into the limiting groove (140).
6. The pressure relief valve according to claim 4 or 5, characterized in that, A groove is arranged on either the outer peripheral surface of the sealing section (130) or the inner wall of the installation hole (110), and a sealing ring (150) is arranged in the groove, and the sealing section (130) is in sealed cooperation with the inner wall of the pressure relief hole (310) through the sealing ring (150).
7. The pressure relief valve according to claim 6, characterized in that, The pressure relief valve body (100) is adapted to switch between a sealed state and a pressure relief state. In the sealed state, the sealing ring (150) is located inside the installation hole (110) and is in sealed cooperation with the inner wall of the pressure relief hole (310), and the limiting member (320) abuts against the groove wall on the side of the limiting groove (140) away from the electronic cabin; in the pressure relief state, the sealing ring (150) is located outside the installation hole (110), and the limiting member (320) abuts against the groove wall on the side of the limiting groove (140) close to the electronic cabin.
8. The pressure relief valve according to claim 6, characterized in that, A limiting surface (160) is arranged at the connection between the limiting section (120) and the sealing section (130), a limiting boss is arranged on the inner wall of the pressure relief hole (310), and the limiting surface (160) is in limiting cooperation with the limiting boss to prevent the pressure outside the electronic cabin housing (300) from pressing the pressure relief valve into the electronic cabin.
9. The pressure relief valve according to claim 6, characterized in that, The cross-sectional area of the pressure relief valve body (100) is smaller than the cross-sectional area of the pressure relief hole (310), so as to form a gap between the pressure relief valve body (100) and the inner wall of the mounting hole (110); in the pressure relief state, the electronic cabin communicates with the outside of the electronic cabin housing (300) through the gap.
10. An underwater device, characterized in that, It includes an electronic cabin housing and the pressure relief valve according to any one of claims 1 to 9.