Waterproof ventilation valve

Abstract

The waterproof ventilation valve comprises a hollow valve body, a sliding piece and an elastic piece, the sliding piece comprises a rod body part and a cover plate part, and a plurality of ventilation holes are formed in the peripheral side of the surface of the cover plate part; the hollow valve body comprises a connecting end, an inserting end and a partition plate, the partition plate is arranged at the joint of the connecting end and the inserting end, a groove is formed between the inserting end and the partition plate, and a middle hole and a plurality of through holes are formed in the surface of the partition plate; the rod body part penetrates through a middle hole in the surface of the partition plate to enter the connecting end, the cover plate part is clamped and embedded in the groove and enables the air hole to be correspondingly communicated with the through hole, and a waterproof breathable film is fixedly arranged on the surface of the cover plate part; the elastic piece is arranged on the periphery of the rod body part in a sleeving mode, one end of the elastic piece abuts against the partition plate, and the other end of the elastic piece is arranged on the side wall of the rod body part in a limited mode. The utility model has the advantages that the periphery of the surface of the cover plate part is provided with a plurality of vent holes which are communicated with the through holes of the partition plate, so that gas is dispersed and discharged, and the exhaust is not easily influenced by blockage.

Description

Technical Field

[0001] The utility model relates to the technical field of valve products, in particular to a waterproof breathable valve. Background Art

[0002] The development of science and technology has not only improved the quality of human life, but has also gradually integrated into human life, becoming increasingly inseparable and closely related. In order to further improve product performance and safety, the development of science and technology has gradually moved towards precision, and these precision equipment, in order to protect the equipment body, will be equipped with a shell cover to enhance the protection effect. However, the equipment body after the shell cover is added often forms a relatively closed space. If the gas generated during the working process is not fully dissipated, it is very easy to generate high pressure in the closed environment and damage the equipment, and even cause an explosion and safety accident.

[0003] Referring to patent CN 206159577 U, the existing waterproof breathable valve includes a hollow valve body, a piston rod and a spring, and the piston rod includes a hollow rod body and a cover plate. Since the cover plate surface of the existing waterproof breathable valve has only one vent hole connected to the hollow rod body, and the vent hole is located at the center of the cover plate surface, the existing waterproof breathable valve has too concentrated exhaust and has the disadvantage of unsmooth exhaust, which needs to be improved. Utility Model Content

[0004] The utility model aims to provide a waterproof and breathable valve with relatively dispersed and smooth exhaust.

[0005] The utility model provides a waterproof breathable valve, comprising a hollow valve body, a sliding member and an elastic member, wherein the sliding member comprises a rod body portion and a cover plate portion, and a plurality of breathable holes are opened on the peripheral side of the surface of the cover plate portion;

[0006] The hollow valve body comprises a connecting end, a plug-in end and a partition, wherein the partition is arranged at the connection between the connecting end and the plug-in end, a groove is formed between the plug-in end and the partition, a central hole and a plurality of through holes are opened on the surface of the partition, and the plurality of through holes are arranged on the peripheral side of the surface of the partition;

[0007] The rod body passes through the middle hole on the surface of the partition to enter the connection end, the cover plate is embedded in the groove and the air hole is connected with the through hole correspondingly, and a waterproof and breathable membrane is fixedly arranged on the surface of the cover plate;

[0008] The elastic member is sleeved on the periphery of the rod body, one end of the elastic member is in contact with the partition, and the other end of the elastic member is limitedly arranged on the side wall of the rod body.

[0009] Preferably, an end block is further included, a screw hole is opened at the bottom end of the rod body, a screw is fixedly provided on the end block, the screw is screwed into the screw hole of the rod body, and both ends of the elastic member are respectively abutted against the partition plate and the end block.

[0010] Preferably, a hook is provided at the other end of the elastic member, a slot is provided on the side wall of the rod body, and the hook is tightly clamped in the slot.

[0011] Preferably, the elastic member is a spring.

[0012] Preferably, a first waterproof ring is provided on the outer periphery of the connection end, and the first waterproof ring improves the air tightness between the connection end and the device shell cover.

[0013] Preferably, a second waterproof ring is provided between the plug-in end and the cover plate portion, and the second waterproof ring improves the air tightness between the plug-in end and the cover plate portion.

[0014] Preferably, a first receiving groove is provided on the surface of the plug-in end facing the connecting end, and the first waterproof ring is embedded in the first receiving groove; a second receiving groove is provided on the surface of the plug-in end facing away from the connecting end, and the second waterproof ring is embedded in the second receiving groove.

[0015] Preferably, a membrane groove is provided on the surface of the cover plate portion, the waterproof breathable membrane is arranged in the membrane groove, a plurality of breathable grooves are provided along the circumference of the membrane groove, the membrane groove is connected with the outside through the breathable grooves, a shielding sheet is fixedly provided on the cover plate portion, a pressure ring is provided at the bottom end of the shielding sheet, the pressure ring is embedded in the membrane groove and pressed tightly against the waterproof breathable membrane.

[0016] Preferably, the plug end is configured as a regular octagon.

[0017] Preferably, a positioning portion is provided between the end block and the screw rod, a positioning groove is provided at the bottom end of the partition, one end of the spring is sleeved on the periphery of the positioning portion, and the other end of the spring is embedded in the positioning groove.

[0018] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0019] 1. A plurality of air holes are provided on the surface of the cover plate of the sliding member, and are located on the peripheral side of the surface of the cover plate and are connected with the through holes of the partition plate, so that the gas is dispersed and discharged, which has the advantage of smooth exhaust.

[0020] 2. A first waterproof ring is provided between the plug-in end and the device shell, and a second waterproof ring is provided between the connecting end and the cover plate portion of the sliding member, thereby making the waterproof and breathable valve have good sealing performance.

[0021] 3. A positioning portion is provided between the end block and the screw rod, and a positioning groove is provided at the bottom end of the partition. One end of the spring is sleeved on the periphery of the positioning portion, and the other end of the spring is embedded in the positioning groove, which is beneficial for the spring to maintain a stable position during compression and resetting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of an explosion of a waterproof breathable valve in Example 1;

[0023] Figure 2 This is a front view of a waterproof breathable valve in Example 1;

[0024] Figure 3 is a top view of a waterproof breathable valve in Example 1;

[0025] Figure 4 is a schematic structural diagram of the hollow valve body in Example 1;

[0026] Figure 5 is a cross-sectional view of a waterproof breathable valve in Example 1;

[0027] Figure 6 is a cross-sectional view of the sliding member of Example 1;

[0028] Figure 7 is a cross-sectional view of the hollow valve body in Example 1;

[0029] Figure 8 is a schematic structural diagram of the sliding member of Example 1;

[0030] Fig. 9 It is an exploded schematic diagram of a waterproof breathable valve in Example 2;

[0031] Fig.10 is a cross-sectional view of a waterproof breathable valve according to Embodiment 2;

[0032] Fig.11 is a cross-sectional view of the sliding member of Example 2;

[0033] Fig.12 is a cross-sectional view of the end block of Example 2;

[0034] Fig.13 This is a schematic diagram of exhaust when the air pressure in the connection end of Example 2 is relatively low;

[0035] Fig.14 This is a schematic diagram of exhaust when the air pressure in the connection end of Example 2 is relatively high.

[0036] Figure numerals: 1. hollow valve body; 11. connecting end; 12. plug-in end; 121. first accommodating groove; 122. second accommodating groove; 13. partition; 131. positioning groove; 132. center hole; 133. through hole; 14. groove; 21. sliding member; 22. cover plate portion; 222. air hole; 223. membrane groove; 224. air groove; 23. rod portion; 231. screw hole; 232. slot; 24. end block; 241. positioning portion; 242. screw; 3. spring; 31. hook; 4. waterproof and breathable membrane; 5. shielding sheet; 51. pressure ring; 6. first waterproof ring; 7. second waterproof ring. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the following is a summary of the technical problems, technical solutions and beneficial effects to be solved by the present invention. Figure 1-14 It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] Embodiment 1,

[0039] Reference Figure 1-Figure 5 The utility model discloses a waterproof breathable valve, comprising a hollow valve body 1, a sliding member 21 and an elastic member, wherein the elastic member is set as a spring 3, the hollow valve body 1 comprises a connecting end 11, a plug end 12 and a partition 13, wherein the partition 13 is located at the connection between the connecting end 11 and the plug end 12, so that a groove 14 is formed between the plug end 12 and the partition 13, a central hole 132 is provided at the center of the surface of the partition 13, and a plurality of through holes 133 for gas circulation are provided on the surface of the partition 13 along the periphery of the central hole 132. The connecting end 11 is used to connect with the device shell cover, and for this purpose, a thread is provided on the outer surface of the connecting end 11. When installing, the connecting end 11 of the waterproof breathable valve is screwed and fixed to the device shell cover, and the plug end 12 is held and rotated to fix the connecting end 11 to the device shell cover by threaded connection, which is not only firmly connected but also has the advantages of easy disassembly. The plug-in end 12 is configured to have a regular octagonal horizontal cross section, so that when the waterproof breathable valve is installed, it is convenient to manually screw and install the waterproof breathable valve.

[0040] Reference Figure 4-Figure 7The sliding member 21 includes a cover plate portion 22 and a rod portion 23 connected to each other, wherein the size of the cover plate portion 22 is smaller than the size of the groove 14. When installing the sliding member 21, one end of the rod portion 23 of the sliding member 21 passes through the middle hole 132 on the surface of the partition 13 to enter the connecting end 11, so that the cover plate portion 22 is embedded in the groove 14 and abuts against the partition 13. Then, the spring 3 is sleeved on the periphery of the rod portion 23 of the sliding member 21, so that one end of the spring 3 abuts against the partition 13. In order to limit the other end of the spring 3 on the side wall of the rod body 23, two grooves 232 are provided on the side wall of the rod body 23 at one end away from the cover plate 22, and correspondingly, two hooks 31 are provided at the end of the spring 3 away from the partition 13, so that the two hooks 31 on the spring 3 are respectively embedded in the two grooves 232 on the side wall of the rod body 23, thereby fixing one end of the spring 3 to the rod body 23.

[0041] Reference Figure 1 and Figure 8 , and a plurality of vent holes 222 are provided on the surface of the cover plate 22. After the cover plate 22 is embedded in the groove 14 of the hollow valve body 1, the plurality of vent holes 222 on the surface of the cover plate 22 correspond to the plurality of through holes 133 on the surface of the partition 13, so that the gas entering the connection end 11 can be discharged through the through holes 133 on the surface of the partition 13 and the vent holes 222 on the surface of the cover plate 22 in sequence. A membrane groove 223 is provided on the surface of the cover plate 22 away from the partition 13. In order to prevent moisture and ash from entering the hollow valve body 1, a waterproof breathable membrane 4 is provided on the surface of the cover plate 22. The shape and size of the waterproof breathable membrane 4 correspond to the shape and size of the membrane groove 223. The waterproof breathable membrane 4 is embedded and installed in the membrane groove 223.

[0042] In order to prevent the waterproof breathable membrane 4 from falling out of the membrane groove 223 on the surface of the cover plate part 22, a shielding sheet 5 is fixedly arranged on the cover plate part 22, and the size of the shielding sheet 5 is set to be larger than the size of the membrane groove 223 and smaller than the size of the groove 14. A pressing ring 51 is fixedly arranged at the bottom end of the shielding sheet 5, and the shielding sheet 5 is covered on the surface of the cover plate part 22 to close the membrane groove 223, so that the pressing ring 51 at the bottom end of the shielding sheet 5 is embedded in the membrane groove 223 and abuts against the waterproof breathable membrane 4, and the waterproof breathable membrane 4 is pressed and fixed on the cover plate part 22 by the pressing ring 51, and a gap is left between the cover plate part 22 and the shielding sheet 5 and the inner side wall of the plug end 12.

[0043] In order to allow the gas that passes through the through hole 133 and the air hole 222 and enters the membrane groove 223 to be discharged smoothly, a plurality of air permeable grooves 224 are provided along the circumference of the cover plate portion 22. The plurality of air permeable grooves 224 are evenly distributed along the circumference of the cover plate portion 22. The plurality of air permeable grooves 224 allow the membrane groove 223 on the surface of the cover plate portion 22 to communicate with the outside world, thereby allowing the gas that enters the membrane groove 223 to pass through the air permeable grooves 224 and be discharged from the membrane groove 223. The inner side wall of the plug end 12 is set to an arc shape. When the pressure of the gas that enters the connection end 11 is relatively high, the gas drives the sliding member 21 to move the cover plate portion 22 away from the partition 13, and the inner side wall of the plug end 12 is set to an arc shape, thereby facilitating the gas to be discharged along the inner side wall of the plug end 12.

[0044] Reference Figure 1 , Figure 5 and Figure 7 In order to make the waterproof breathable valve have a good waterproof effect, a first receiving groove 121 is provided on the side of the plug end 12 facing the connection end 11. The first receiving groove 121 surrounds the peripheral side of the connection end 11, and a first waterproof ring 6 is sleeved on the outer periphery of the connection end 11. The first waterproof ring 6 is embedded in the first receiving groove 121, so that the first waterproof ring 6 is partially hidden in the first receiving groove 121. When the connection end 11 of the waterproof breathable valve is threadedly connected to the device shell, the device shell and the first waterproof ring 6 are tightly pressed. The setting of the first waterproof ring 6 blocks the gap between the waterproof breathable valve and the device shell, preventing water from passing through the gap between the waterproof breathable valve and the device shell into the hollow valve body 1.

[0045] A second receiving groove 122 is provided on the side of the plug end 12 facing away from the connection end 11. The second receiving groove 122 is located in the groove 14 formed between the plug end 12 and the partition 13. A second waterproof ring 7 is provided on the plug end 12. The second waterproof ring 7 is inserted into the second receiving groove 122 on the plug end 12, so that the second waterproof ring 7 is partially hidden in the second receiving groove 122 and partially protrudes from the surface of the plug end 12. The rod body 23 of the sliding member 21 is passed through the middle hole 132 of the partition 13 to enter the connection end 11. The spring 3 is sleeved on the periphery of the rod body 23. One end of the spring 3 is in contact with the partition 13, and the other end of the spring 3 is fixed to the side wall of the rod body 23. Under the elastic force of the spring 3, the cover portion 22 abuts against the second waterproof ring 7. The second waterproof ring 7 is arranged to seal the gap between the cover portion 22 and the plug end 12 to prevent water from passing through the gap between the cover portion 22 and the plug end 12 and entering the hollow valve body 1.

[0046] Embodiment 2,

[0047] Reference Figure 9-12, which is different from the first embodiment, is that an end block 24 is provided at one end of the rod body 23 away from the cover plate 22. In order to ensure that the rod body 23 and the end block 24 are firmly installed, a screw hole 231 is provided at one end of the rod body 23 away from the cover plate 22, and a screw rod 242 is provided on the end block 24 correspondingly. The screw rod 242 on the end block 24 is screwed into the screw hole 231 at one end of the rod body 23, so that the sliding member 21 and the end block 24 are not only firmly fixed but also easy to disassemble. The spring 3 is sleeved on the periphery of the rod body 23, so that the two ends of the spring 3 are respectively in contact with the partition 13 and the end block 24.

[0048] In order to keep the spring 3 firmly positioned outside the rod body 23, a positioning portion 241 is provided between the end block 24 and the screw rod 242, and a positioning groove 131 is formed at the bottom end of the partition 13. One end of the spring 3 is sleeved around the positioning portion 241, and the other end of the spring 3 is embedded in the positioning groove 131, so as to prevent the spring 3 from being displaced during compression or resetting.

[0049] Reference Fig.13 and Fig.14 The specific implementation principle of the embodiment of the present application is as follows: when the waterproof breathable valve is used, when the gas generated in the device housing is small, the gas enters the connection end 11 of the waterproof breathable valve, and passes through the through hole 133 on the surface of the partition 13 and the breathable hole 222 on the surface of the cover plate part 22 in sequence, and then passes through the waterproof breathable membrane 4 to enter the membrane groove 223 of the cover plate part 22. After the gas passes through the plurality of breathable grooves 224 on the cover plate part 22, it is discharged along the gap between the shielding sheet 5 and the plug-in end 12. The breathable holes 222 on the cover plate part 22 are arranged on the surface circumference of the cover plate part 22 and correspond to the through holes 133 on the surface of the partition plate 13, so that the exhaust of the waterproof breathable valve is relatively dispersed, reducing the probability that the waterproof breathable valve cannot be exhausted smoothly due to blockage.

[0050] When there is a lot of gas generated in the housing of the device, the gas pressure formed by the gas entering the connection end 11 is relatively high, and the gas only passes through the through hole 133 and the vent hole 222, making it difficult to be discharged from the connection end 11 in time. At this time, due to the high air pressure in the connection end 11, the driving end block 24 squeezes the spring 3, so that the cover plate part 22 moves away from the partition 13, and the cover plate part 22 and the second waterproof ring 7 on the plug end 12 are separated from each other. At this time, after the gas passes through the through hole 133, it can continue to pass through the vent hole 222, the waterproof breathable membrane 4 and the breathable groove 224 in sequence to be discharged; at the same time, it can also be discharged from the gap between the cover plate part 22 and the plug end 12. As a result, a large amount of gas entering the connection end 11 can be quickly discharged from the waterproof breathable valve, which improves the exhaust efficiency of the waterproof breathable valve. When the air pressure in the connection end 11 is relatively low after the gas is discharged, the sliding member 21 closes the cover plate part 22 and the plug end 12 under the action of the elastic force of the spring 3.

[0051] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all protected by the utility model.

Claims

1. A waterproof breathable valve, characterized in that: It comprises a hollow valve body, a sliding member and an elastic member, wherein the sliding member comprises a rod body portion and a cover plate portion, and a plurality of air holes are provided on the peripheral side of the surface of the cover plate portion; The hollow valve body comprises a connecting end, a plug-in end and a partition, wherein the partition is arranged at the connection between the connecting end and the plug-in end, a groove is formed between the plug-in end and the partition, a central hole and a plurality of through holes are opened on the surface of the partition, and the plurality of through holes are arranged on the peripheral side of the surface of the partition; The rod body passes through the middle hole on the surface of the partition to enter the connection end, the cover plate is embedded in the groove and the air hole is connected with the through hole correspondingly, and a waterproof and breathable membrane is fixedly arranged on the surface of the cover plate; The elastic member is sleeved on the periphery of the rod body, one end of the elastic member is in contact with the partition, and the other end of the elastic member is limitedly arranged on the side wall of the rod body.

2. A waterproof breathable valve according to claim 1, characterized in that: It also includes an end block, a screw hole is opened at the bottom end of the rod body, a screw is fixedly arranged on the end block, and the screw is screwed into the screw hole of the rod body. The two ends of the elastic member are respectively in contact with the partition plate and the end block.

3. The waterproof breathable valve according to claim 1, characterized in that: The other end of the elastic member is provided with a hook, and the side wall of the rod body is provided with a slot, and the hook is tightly clamped in the slot.

4. A waterproof breathable valve according to claim 2, characterized in that: The elastic member is a spring.

5. The waterproof breathable valve according to claim 1, characterized in that: The outer periphery of the connection end is provided with a first waterproof ring, and the first waterproof ring improves the air tightness between the connection end and the device shell cover.

6. A waterproof breathable valve according to claim 5, characterized in that: A second waterproof ring is provided between the plug-in end and the cover plate portion, and the second waterproof ring improves the air tightness between the plug-in end and the cover plate portion.

7. A waterproof breathable valve according to claim 6, characterized in that: A first receiving groove is formed on the surface of the plug end facing the connection end, and the first waterproof ring is embedded in the first receiving groove; a second receiving groove is formed on the surface of the plug end facing away from the connection end, and the second waterproof ring is embedded in the second receiving groove.

8. The waterproof breathable valve according to claim 1, characterized in that: A membrane groove is provided on the surface of the cover plate portion, the waterproof breathable membrane is arranged in the membrane groove, a plurality of breathable grooves are provided along the circumference of the membrane groove, the membrane groove is connected with the outside through the breathable grooves, a shielding sheet is fixedly provided on the cover plate portion, a pressure ring is provided at the bottom end of the shielding sheet, the pressure ring is embedded in the membrane groove and pressed tightly against the waterproof breathable membrane.

9. The waterproof breathable valve according to claim 1, characterized in that: The plug-in end is arranged in a regular octagon.

10. The waterproof breathable valve according to claim 4, characterized in that: A positioning portion is provided between the end block and the screw rod, a positioning groove is provided at the bottom end of the partition plate, one end of the spring is sleeved on the periphery of the positioning portion, and the other end of the spring is embedded in the positioning groove.

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