Breathable valve with large-torque rotation stopping function

Abstract

The utility model relates to the technical field of electronic equipment, electric equipment control cabinets and the like, in particular to a large-torque ventilation valve with a rotation stopping function, which comprises a cap and a fixing ring arranged on the outer side of the upper end of the cap. A pressing block is embedded in the inner side of the fixing ring; a steel wire rotation stopping pin is embedded in the inner side of the pressing block; a gum type waterproof breathable film is arranged at the upper end of the pressing block; a bracket is arranged at the upper end of the waterproof breathable film; a valve body is embedded in the inner side of the fixing ring; compared with the prior art, according to the large-torque ventilation valve with the rotation stopping function, the steel wire rotation stopping pin, the pressing block and the valve body are arranged, a steel wire serves as a rotation stopping pin and is embedded between the ventilation valve bonnet and the ventilation valve body, the problem that in the installation and locking process of the ventilation valve, the rotation stopping pin is not prone to falling off is effectively solved, and the ventilation valve is not prone to falling off. The ventilation valve bonnet and the ventilation valve body are easy to rotate, and the installation torque of the ventilation valve is increased.

Description

Technical Field

[0001] The utility model relates to the technical fields of electronic equipment, electronic control cabinets and the like, and in particular to a breathable valve with a large torque anti-rotation function. Background Art

[0002] In some special equipment or closed working environments such as electrical control cabinets, a large amount of heat will be generated during the centralized working process of electronics. Since these special equipment or the main electrical control cabinet are in a humid or outdoor environment with water, the air in the closed space expands due to heat and needs to be discharged, but water cannot enter the closed space. At this time, a structure that is both breathable and waterproof is needed to ensure the balance of air pressure inside and outside the closed space, while giving priority to blocking water from entering the closed space.

[0003] At present, many vent valves on the market have low torque. Most of these products can only withstand low torque and are prone to slipping and spinning. Our vent valves with high torque anti-rotation function perfectly fill this gap, mainly solving the problem of vent valves spinning and slipping during assembly and disassembly on equipment. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a breathable valve with a large torque anti-rotation function.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a cap, a fixing ring is arranged on the outer side of the upper end of the cap; a pressure block is embedded on the inner side of the fixing ring; a wire stop pin is embedded on the inner side of the pressing block; a back-adhesive waterproof and breathable membrane is installed on the upper end of the pressing block; a bracket is arranged on the upper end of the waterproof and breathable membrane; a valve body is embedded on the inner side of the fixing ring; and a fixing tube is arranged on the upper end of the fixing ring.

[0006] Preferably, a vent hole is provided at the upper end of the bracket; a tension ring is provided at the outer side of the bracket; and the tension ring is located inside the fixing ring.

[0007] Preferably, an external thread is provided on the outer side of the fixing tube, and a flat washer is sleeved on the lower end of the outer side of the fixing tube, and the flat washer is fitted with the upper end of the valve body.

[0008] Preferably, the pressing block is cylindrical, and the lower end of the pressing block is rectangular with teeth, the steel wire stop pin is located at the lowermost end of the pressing block, and the steel wire stop pin fits tightly against the inner side of the fixing ring.

[0009] Preferably, the ventilation holes provided at the upper end of the bracket are a plurality of circular ventilation holes, and the ventilation holes are distributed in an arc-shaped array with the center of the bracket as the center.

[0010] Preferably, the flat gasket is made of soft silicone.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the prior art, this air valve with a large torque anti-rotation function, through the provision of a steel wire anti-rotation pin, a pressure block and a valve body, uses a steel wire as a anti-rotation pin embedded between the air valve cap and the air valve body, effectively solving the problem of the air valve cap and the air valve body being prone to rotation during the installation and locking process of the air valve, thereby increasing the installation torque of the air valve.

[0013] Compared with the prior art, in this ventilation valve with a large torque anti-rotation function, the wire anti-rotation pin is fixed by a pressure block, which avoids the risk of the wire anti-rotation pin tilting under the action of torque during the rotation of the ventilation valve and improves the reliability of the ventilation valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Schematic diagram of the overall structure of the installation explosion site;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the overall structure at the style.

[0017] Legend:

[0018] 1. Cap; 2. Fixing ring; 3. Pressure block; 4. Steel wire stop pin; 5. Adhesive waterproof breathable membrane; 6. Bracket; 7. Air hole; 8. Tension ring; 9. Valve body; 10. Flat washer; 11. Fixing tube; 12. External thread. DETAILED DESCRIPTION

[0019] Reference Figure 1-3The utility model provides a breathable valve with a large torque anti-rotation function: it includes a cap 1, a fixing ring 2 is arranged on the outer side of the upper end of the cap 1; a pressing block 3 is embedded on the inner side of the fixing ring 2; a wire anti-rotation pin 4 is embedded on the inner side of the pressing block 3; a back-adhesive waterproof breathable membrane 5 is installed on the upper end of the pressing block 3; a bracket 6 is arranged on the upper end of the waterproof breathable membrane; a valve body 9 is embedded on the inner side of the fixing ring 2; a fixing tube 11 is arranged on the upper end of the fixing ring 2, which is assembled to the valve body 9 through a flat gasket 10, the back-adhesive waterproof breathable membrane 5 is pasted on the bracket 6, and then assembled to the valve body 9, the bracket 6 and the valve body 9 There is a sealing ring in between, the bracket 6 is pressed on the adhesive-backed waterproof and breathable membrane 5, and then pressed into the cap 1 through the valve body 9. The undercut on the cap 1 hangs the valve body 9, and two U-shaped grooves are designed at symmetrical positions of the cap 1 and the valve body 9. During assembly, the U-shaped groove of the cap 1 is aligned with the U-shaped groove of the valve body 9, and the two ends of the steel wire stop pin 4 are inserted into the U-shaped grooves of the cap 1 and the valve body 9. The slot on the bracket 6 clamps the middle position of the steel wire stop pin 4 to prevent the steel wire stop pin 4 from being tilted by force when the breathable valve is assembled. The steel wire stop pin 4 prevents the cap 1 and the valve body 9 from rotating between the two, so that the breathable valve will not rotate or slip during assembly and disassembly during use.

[0020] As a further implementation scheme of the above technical solution: Figure 2 As shown, a vent hole 7 is provided at the upper end of the bracket 6 ; a tension ring 8 is provided at the outer side of the bracket 6 ; and the tension ring 8 is located inside the fixing ring 2 .

[0021] As a further implementation scheme of the above technical solution: Figure 3 As shown, the pressing block 3 is cylindrical, and the lower end of the pressing block 3 is rectangular with teeth, the steel wire stop pin 4 is located at the lowermost end of the pressing block 3, and the steel wire stop pin 4 is tightly fitted with the inner side of the fixing ring 2, and the air valve cap cover 1 and the air valve body 9 steel wire stop pin 4 are pressed and fixed with PA6 nylon pressing block 3 to prevent the steel wire stop pin 4 from tilting during assembly.

[0022] As a further implementation scheme of the above technical solution: Figure 2-3 As shown, the air holes 7 provided at the upper end of the bracket 6 are multiple circular air holes 7, and the air holes 7 are distributed in an arc array with the center of the bracket 6 as the center. When installing the adhesive waterproof and breathable membrane 5, the protective film on the upper end can be torn off and then pasted on the bracket 6 through the sticky end, which is convenient for the installation of the adhesive waterproof and breathable membrane 5.

[0023] As a further implementation scheme of the above technical solution: Figure 1-3As shown, an external thread 12 is provided on the outer side of the fixing tube 11, and a flat washer 10 is covered on the lower end of the outer side of the fixing tube 11, and the flat washer 10 is fitted with the upper end of the valve body 9. The flat washer 10 is made of soft silicone. The flat washer 10 is manually assembled to the valve body 9. During assembly, it is inserted into the fixing tube 11 from top to bottom until it contacts the upper end surface of the valve body 9.

[0024] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vent valve with a large torque anti-rotation function, comprising a cap (1), characterized in that: A fixing ring (2) is provided on the outer side of the upper end of the cap (1); A pressing block (3) is embedded inside the fixing ring (2); A steel wire anti-rotation pin (4) is embedded inside the pressing block (3); A waterproof and breathable membrane (5) with adhesive backing is installed on the upper end of the pressing block (3); A bracket (6) is provided on the upper end of the waterproof and breathable membrane; A valve body (9) is embedded inside the fixing ring (2); A fixing pipe (11) is provided at the upper end of the fixing ring (2).

2. A vent valve with a large torque anti-rotation function according to claim 1, characterized in that: A ventilation hole (7) is provided at the upper end of the bracket (6); A tension ring (8) is provided on the outer side of the bracket (6); The tensioning ring (8) is located inside the fixing ring (2).

3. The vent valve with large torque anti-rotation function according to claim 1, characterized in that: The outer side of the fixed tube (11) is provided with an external thread (12), and the lower end of the outer side of the fixed tube (11) is covered with a flat washer (10), and the flat washer (10) is fitted with the upper end of the valve body (9).

4. The vent valve with large torque anti-rotation function according to claim 1, characterized in that: The pressing block (3) is cylindrical, and the lower end of the pressing block (3) is rectangular with teeth. The steel wire stop pin (4) is located at the lowermost end of the pressing block (3), and the steel wire stop pin (4) is tightly fitted with the inner side of the fixing ring (2).

5. The vent valve with large torque anti-rotation function according to claim 2, characterized in that: The ventilation holes (7) provided at the upper end of the support (6) are a plurality of circular ventilation holes (7), and the ventilation holes (7) are distributed in an arc-shaped array with the center of the support (6) as the center of the circle.

6. The vent valve with large torque anti-rotation function according to claim 3, characterized in that: The flat washer (10) is made of soft silica gel.

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