One-way anti-explosion drainage and exhaust valve

Abstract

The utility model provides a one-way anti-explosion drainage and exhaust valve, and belongs to the technical field of anti-explosion valves. Comprising an anti-explosion drainage exhaust part, an anti-explosion pressure relief exhaust head and a sealing part. And the anti-explosion drainage and exhaust part comprises an anti-explosion pressure relief shell and an anti-explosion pressure relief inner core arranged in the anti-explosion pressure relief shell, an anti-explosion spiral pressure relief channel is arranged on the peripheral side of the anti-explosion pressure relief inner core, and the anti-explosion spiral pressure relief channel is communicated with the air outlet of the exhaust part. The anti-explosion pressure relief exhaust head is connected to the end, away from the exhaust component, of the anti-explosion water drainage exhaust part, the anti-explosion water drainage exhaust part and the anti-explosion pressure relief exhaust head jointly define a mounting cavity, and the anti-explosion pressure relief exhaust head is provided with an exhaust hole located in the mounting cavity. The sealing piece is arranged in the mounting cavity, one side of the sealing piece is connected with the elastic element, and the other side of the sealing piece abuts against the anti-explosion water and gas drainage piece and seals one end of the anti-explosion spiral pressure relief channel. According to the utility model, gas and water are discharged, and external moisture is prevented from entering the exhaust component to generate adverse effects on the exhaust component.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof valve technology, and in particular to a one-way explosion-proof drainage and exhaust valve. Background Technology

[0002] Explosion-proof valves are important mechanical components and safety devices that play a crucial role in many fields and systems. In motor boxes, battery boxes, and electrical boxes, explosion-proof valves prevent sudden increases in internal pressure, thus avoiding explosions. When the internal pressure exceeds a set value, the explosion-proof valve automatically opens to release the excessive pressure, protecting equipment and personnel.

[0003] Existing explosion-proof valves are explosion-proof drainage and venting components that are inserted into explosion-proof pressure relief and venting heads. These components have an explosion-proof spiral pressure relief channel running the length of the component, and a valve core is installed within this channel. The explosion-proof function is achieved through the cooperation between the valve core and the explosion-proof drainage and venting component.

[0004] The explosion-proof spiral pressure relief channel of the existing explosion-proof valve is exposed to the external environment. Moisture or liquid from the external environment can easily enter the exhaust system through the explosion-proof spiral pressure relief channel, causing internal corrosion of the exhaust components or other adverse effects on the exhaust components. Utility Model Content

[0005] One objective of this invention is to address the problem that in existing explosion-proof drainage and exhaust valves, external moisture or liquid can easily enter the exhaust component through the explosion-proof spiral pressure relief channel, causing internal corrosion of the exhaust component or other adverse effects on the exhaust component.

[0006] Specifically, embodiments of this application provide a one-way explosion-proof drain and exhaust valve, comprising:

[0007] An explosion-proof drainage and exhaust device includes an explosion-proof pressure relief shell and an explosion-proof pressure relief inner core disposed inside the explosion-proof pressure relief shell. An explosion-proof spiral pressure relief channel is formed on the outer periphery of the explosion-proof pressure relief inner core along the length direction of the explosion-proof pressure relief inner core. The explosion-proof drainage and exhaust device is used to connect with an exhaust component, and when connected, the explosion-proof spiral pressure relief channel is connected to the exhaust port of the exhaust component.

[0008] An explosion-proof pressure relief vent head is connected to the end of the explosion-proof drainage vent component away from the vent component. The explosion-proof drainage vent component and the explosion-proof pressure relief vent head together define a mounting cavity. The explosion-proof pressure relief vent head has a vent hole located within the mounting cavity.

[0009] A sealing element is disposed within the mounting cavity. One side of the sealing element is connected to an elastic element. Under the elastic force of the elastic element, the other side of the sealing element abuts against the explosion-proof drainage and venting element and seals one end of the explosion-proof spiral pressure relief channel.

[0010] Furthermore, the explosion-proof pressure relief housing is provided with a limiting member, and the explosion-proof pressure relief exhaust head is provided with a limiting groove. The limiting member cooperates with the limiting groove to limit the relative position of the explosion-proof pressure relief exhaust head connected to the explosion-proof drainage exhaust component.

[0011] Furthermore, the explosion-proof drainage and venting component is provided with external threads, and the inner sidewall of the explosion-proof pressure relief venting head is provided with internal threads, and the explosion-proof drainage and venting component is threadedly connected to the explosion-proof pressure relief venting head.

[0012] Furthermore, the elastic element is a spring, one end of which is connected to the seal and the other end is fixed to the explosion-proof pressure relief exhaust head.

[0013] Furthermore, the side of the seal that is connected to the spring is provided with a boss for connecting to the spring.

[0014] Furthermore, the explosion-proof pressure relief exhaust head is provided with a mounting hole, and the spring extends into the mounting hole to connect the spring to the explosion-proof pressure relief exhaust head.

[0015] Furthermore, the number of exhaust holes is multiple.

[0016] Furthermore, multiple vent holes are circumferentially arranged on the side of the explosion-proof pressure relief vent head that is parallel to the length direction of the explosion-proof drainage vent component.

[0017] Furthermore, a raised ring is provided on the side of the seal that abuts against the explosion-proof drainage and venting component, and the end of the explosion-proof drainage and venting component that abuts against the seal is confined within the raised ring.

[0018] The beneficial effects of this utility model are:

[0019] 1. By installing seals, elastic elements, and explosion-proof pressure relief vents on the explosion-proof drainage and venting components, gas is allowed to escape when the internal pressure of the venting component exceeds a preset value. After the gas has been completely released, the seals abut against one end of the explosion-proof spiral pressure relief channel and seal the channel, preventing external moisture or liquids from entering the venting component and causing corrosion or other adverse effects.

[0020] 2. By setting limit components and limit grooves, the relative positions of explosion-proof drainage and exhaust components and explosion-proof pressure relief exhaust heads can be easily determined during the production process, thereby improving production efficiency while ensuring product quality. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of a one-way explosion-proof drain and exhaust valve according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A cross-sectional view of the one-way explosion-proof drain and exhaust valve along its length.

[0023] In the picture:

[0024] 100-One-way explosion-proof drain and exhaust valve; 1-Explosion-proof drain and exhaust component; 11-Explosion-proof pressure relief shell; 12-Explosion-proof pressure relief inner core; 2-Explosion-proof pressure relief exhaust head; 3-Seal; 31-Boss; 32-Protruding ring; 4-Explosion-proof spiral pressure relief channel; 5-Mounting cavity; 6-Exhaust hole; 7-Elastic element; 8-Limiting component; 9-Limiting groove; 10-Mounting hole. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0026] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] The one-way explosion-proof drain and exhaust valve 100 of this utility model includes an explosion-proof drain and exhaust component 1, an explosion-proof pressure relief exhaust head 2, and a sealing component 3. The explosion-proof drain and exhaust component 1 is used to connect with an exhaust component (not shown). When the internal air pressure of the exhaust component reaches a preset value, the explosion-proof drain and exhaust component 1 releases the gas inside the exhaust component to prevent the exhaust component from exploding. In the one-way explosion-proof drain and exhaust valve 100 of this utility model, the explosion-proof drain and exhaust component 1 includes an explosion-proof pressure relief shell 11 and an explosion-proof pressure relief inner core 12 disposed inside the explosion-proof pressure relief shell 11. The outer periphery of the explosion-proof pressure relief inner core 12 is provided with an explosion-proof spiral pressure relief channel 4 along the length direction of the explosion-proof pressure relief inner core 12. The explosion-proof drain and exhaust component 1 is used to connect with the exhaust component, and when connected, the explosion-proof spiral pressure relief channel 4 communicates with the air outlet of the exhaust component. An explosion-proof pressure relief vent head 2 is connected to the end of the explosion-proof drainage vent component 1 furthest from the venting component. The explosion-proof drainage vent component 1 and the explosion-proof pressure relief vent head 2 together define a mounting cavity 5. The explosion-proof pressure relief vent head 2 has a vent hole 6 located within the mounting cavity. A sealing element 3 is disposed within the mounting cavity 5. One side of the sealing element 5 is connected to an elastic element 7. Under the elastic force of the elastic element 7, the other side of the sealing element 5 abuts against the explosion-proof drainage vent component 1 and seals one end of the explosion-proof spiral pressure relief channel 4.

[0029] like Figure 2 As shown, the one-way explosion-proof drain and exhaust valve 100 of this utility model is based on the existing explosion-proof breather drain valve (invention patent number: CN200910213089.9) with the addition of an explosion-proof pressure relief exhaust head 2 and a sealing element 3. Therefore, the explosion-proof principle of the explosion-proof drain and exhaust element 1 is the same as that of the existing explosion-proof drain and exhaust valve, and will not be described in detail here.

[0030] A sealing element 3 and an explosion-proof pressure relief vent 2 are provided on the explosion-proof drainage and venting component 1. When the internal air pressure of the venting component reaches a preset value, the explosion-proof drainage and venting component 1 allows gas and water to leak outward along the explosion-proof spiral pressure relief channel 4. In the absence of gas leakage, the sealing element 3 abuts against one end of the explosion-proof spiral pressure relief channel 4 under the support of the elastic element 7. When the gas pressure exceeds the preset value, the sealing element 3 is pushed open by the high-pressure gas under the action of the gas pressure, and the gas enters the explosion-proof pressure relief vent 2 and is discharged outward through the vent hole 6 provided on the explosion-proof pressure relief vent 2. After the gas has completely leaked out, the sealing element 3 continues to abut against one end of the explosion-proof spiral pressure relief channel 4 under the elastic force of the elastic element 7.

[0031] By installing a sealing element 3, an elastic element 7, and an explosion-proof pressure relief exhaust head 2 on the explosion-proof drainage and exhaust component 1, gas is allowed to be discharged when the internal gas pressure of the exhaust component exceeds a preset value. After the gas is discharged, the sealing element 3 abuts against one end of the explosion-proof spiral pressure relief channel 4 and forms a seal on the explosion-proof spiral pressure relief channel 4, preventing external moisture or liquid from entering the exhaust component and causing corrosion, which could have other adverse effects on the exhaust component.

[0032] Please refer to this again. Figure 2 In one embodiment, the explosion-proof drainage and exhaust component 1 is provided with a limiting member 8, and the explosion-proof pressure relief exhaust head 2 is provided with a limiting groove 9. The limiting member 8 cooperates with the limiting groove 9 to limit the relative position of the explosion-proof pressure relief exhaust head 2 connected to the explosion-proof drainage and exhaust component 1. Through the above arrangement, it is easy to determine the relative position of the explosion-proof drainage and exhaust component 1 and the explosion-proof pressure relief exhaust head 2 during the production process, thereby improving production efficiency while ensuring product quality.

[0033] In one embodiment, the explosion-proof drainage and venting component 1 has external threads, and the inner wall of the explosion-proof pressure relief venting head 2 has internal threads. The explosion-proof drainage and venting component 1 and the explosion-proof pressure relief venting head 2 are threadedly connected. In other embodiments, the explosion-proof drainage and venting component 1 and the explosion-proof pressure relief venting head 2 can also be connected in other ways, which will not be elaborated here. While threaded connection facilitates the connection, it also addresses the issue that the internal air pressure of the explosion-proof pressure relief venting head 2 is relatively high, and the release of high-pressure air will generate a significant impact force. Threaded connection strengthens the connection and prevents the explosion-proof pressure relief venting head 2 from detaching from the explosion-proof drainage and venting component 1 under the impact of high-speed airflow. This enhances the safety of the one-way explosion-proof drainage and venting valve 100 of this invention during use.

[0034] The elastic element 7 can be implemented in various ways. In one embodiment, the elastic element 7 is a folded iron sheet. In another embodiment, such as... Figure 2 As shown, the elastic element 7 is a spring. One end of the spring is connected to the seal 3, and the other end is fixed to the explosion-proof pressure relief vent 2. The spring extends along the length of the explosion-proof drainage vent 1. Using a spring as the elastic element 7 makes material sourcing more convenient and deformation more stable.

[0035] When a spring is used as the elastic element 7, in one embodiment, such as Figure 2 As shown, the side of the seal 3 connected to the spring is provided with a boss 31 for connecting with the spring, and the spring is sleeved on the boss 31. By providing the boss 31, the connection between the spring and the seal 3 is made more stable, and the spring is prevented from detaching from the seal 3 during sudden compression and extension, which would prevent the seal 3 from sealing the explosion-proof spiral pressure relief channel 4.

[0036] When a spring is used as the elastic element 7, a mounting hole 10 is provided on the explosion-proof pressure relief vent 2. The spring extends into the mounting hole 10, connecting the spring to the explosion-proof pressure relief vent 2. The mounting hole 10 makes the connection between the spring and the explosion-proof pressure relief vent 2 more stable, preventing the spring from disengaging from the explosion-proof pressure relief vent 2 during compression and extension.

[0037] Please refer to this again. Figure 2 The number of exhaust ports 6 is multiple. In one embodiment, such as... Figure 1 and Figure 2 As shown, multiple vent holes 6 are circumferentially arranged on the side of the explosion-proof pressure relief vent head 2, which is parallel to the length direction of the explosion-proof drainage vent component 1. By circumferentially arranging the vent holes 6, the exhaust is made more uniform.

[0038] In one embodiment, a raised ring 32 is provided on the side of the seal 3 that abuts against the explosion-proof drainage and venting component 1, and the end of the explosion-proof drainage and venting component 1 that abuts against the seal 3 is confined within the raised ring 32. By confining the explosion-proof drainage and venting component 1 within the raised ring 32, the sealing effect between the seal 3 and the explosion-proof spiral pressure relief channel 4 is enhanced. When external moisture or liquid enters the mounting cavity 5 from the vent hole 6, the raised ring 32 prevents moisture and liquid from entering the explosion-proof drainage and venting component 1, thus improving the sealing effect of the seal 3.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A one-way explosion relief drain and vent valve characterized by, The application relates to an explosion-proof drainage and exhaust device. The explosion-proof drainage and exhaust device comprises an explosion-proof pressure relief shell and an explosion-proof pressure relief inner core arranged in the explosion-proof pressure relief shell, an explosion-proof spiral pressure relief channel is arranged on the outer circumferential side of the explosion-proof pressure relief inner core along the length direction of the explosion-proof pressure relief inner core, the explosion-proof drainage and exhaust device is used for being connected with an exhaust component, and the explosion-proof spiral pressure relief channel is communicated with an air outlet of the exhaust component when the explosion-proof drainage and exhaust device is connected with the exhaust component. An explosion-proof pressure relief exhaust head is connected to one end of the explosion-proof drainage and exhaust device away from the exhaust component, the explosion-proof drainage and exhaust device and the explosion-proof pressure relief exhaust head jointly define an installation cavity, and the explosion-proof pressure relief exhaust head is provided with exhaust holes in the installation cavity. A sealing element is arranged in the installation cavity, one side of the sealing element is connected with an elastic element, and the other side of the sealing element is abutted against and sealed with the explosion-proof drainage and exhaust device and one end of the explosion-proof spiral pressure relief channel under the elastic force of the elastic element.

2. The one-way explosion relief drain and vent valve of claim 1, wherein, A limiting element is arranged on the explosion-proof pressure relief shell, a limiting groove is arranged on the explosion-proof pressure relief exhaust head, the limiting element and the limiting groove are matched to limit the relative position of the explosion-proof pressure relief exhaust head connected to the explosion-proof drainage and exhaust device.

3. The one-way explosion relief drain and vent valve of claim 2, wherein, An outer thread is arranged on the explosion-proof drainage and exhaust device, an inner thread is arranged on the inner side wall of the explosion-proof pressure relief exhaust head, and the explosion-proof drainage and exhaust device is threadedly connected with the explosion-proof pressure relief exhaust head.

4. The one-way explosion relief drain and vent valve of claim 1, wherein, The elastic element is a spring, one end of the spring is connected with the sealing element, and the other end of the spring is fixed on the explosion-proof pressure relief exhaust head.

5. The one-way explosion relief drain and vent valve of claim 4, wherein, A convex platform for being connected with the spring is arranged on the side of the sealing element connected with the spring.

6. The one-way explosion relief drain and vent valve of claim 4, wherein, An installation hole is arranged on the explosion-proof pressure relief exhaust head, the spring is arranged in the installation hole, and the spring is connected with the explosion-proof pressure relief exhaust head.

7. The one-way explosion relief drain and vent valve of any one of claims 1 to 6, wherein, The number of the exhaust holes is multiple.

8. The one-way explosion relief drain and vent valve of claim 7, wherein, Multiple exhaust holes are circumferentially arranged on the side of the explosion-proof pressure relief exhaust head parallel to the length direction of the explosion-proof drainage and exhaust device.

9. The one-way explosion relief drain and vent valve of claim 1, wherein, A convex ring is arranged on the side of the sealing element abutted against the explosion-proof drainage and exhaust device, and one end of the explosion-proof drainage and exhaust device abutted against the sealing element is limited in the convex ring.

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