Automatic air release valve

Abstract

The utility model relates to the technical field of snuffle valves, and discloses an automatic snuffle valve which comprises a connecting sleeve, an adjusting stud is in threaded connection with the interior of the connecting sleeve, a pressing plate is fixedly connected to the top of the adjusting stud, a valve element penetrates through the interior of the pressing plate, a spring is arranged outside the valve element, and the spring is fixedly connected with the top of the adjusting stud. The bottom end of the valve element is fixedly connected with a conical piston, the bottom end of the spring is fixedly connected to the outer side of the top of the conical piston, and the top end of the spring is fixedly connected to the bottom of the pressing plate. According to the utility model, the pressure value is preset by adjusting the locking position of the nut, when the gas pressure exceeds the set value, the conical piston is pushed to move upwards, the gas is discharged from the gas release hole and the pressure is reduced, the conical piston is reset by the spring, so that the effects of automatic gas release and sealing are realized, and the complexity of measuring the tire pressure for multiple times by operators is avoided; the tire pressure is stabilized in a safety range, and the operation convenience and the tire use safety are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air release valve, especially automatic air release valve. BACKGROUND

[0002] Air release valve is also called safety valve, which is a kind of component widely used in various types of gas or liquid pressure, and the main function is to automatically open and release pressure when the pressure exceeds the preset safety value, so as to ensure the safe and stable operation of the system and prevent equipment damage caused by excessive pressure.

[0003] In the pipeline transportation system of petrochemical industry, due to the flow of medium, temperature change and equipment start-stop factors, the pressure in the pipeline is prone to fluctuation, and the air release valve can adjust the pressure in time to ensure the safety of transportation. In the steam boiler system, the air release valve can effectively control the steam pressure to ensure the normal operation of the boiler. In daily life, like car tires or gas water heater equipment are also equipped with air release valve. The air release valve in the car tire is used to maintain the stability of the tire pressure and ensure the safety of driving, and the air release valve of the gas water heater can prevent the internal pressure from being too high to ensure the safety of use.

[0004] The traditional manual adjustment type air release valve adopts the way of manual operation of valve opening degree of operator to control the air release when adjusting the pressure of equipment. This operation method can realize the adjustment of pressure to a certain extent and avoid the risk of equipment damage caused by excessive pressure. However, it lacks precise automatic pressure monitoring and adjusting mechanism. The operator can only disassemble the equipment several times, measure the pressure by using special pressure measuring instrument, then install the air release valve for air release operation, and then disassemble the pressure measuring device again to confirm whether the pressure reaches the ideal value. Such repeated disassembly, pressure measurement and installation process not only consumes a lot of time and labor cost, but also causes wear and tear to the connection part of the equipment, affecting the sealing performance and overall service life of the equipment. At the same time, the error of manual measurement and operation is difficult to avoid, and it is difficult to ensure that the pressure after each adjustment can reach the preset value accurately, which brings potential hidden danger to the stable operation of the equipment. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides an automatic air release valve, which aims at improving the problem that the existing technology repeatedly carries out the process of disassembly, pressure measurement and installation of air release, which not only consumes a lot of time and labor cost, but also manual measurement is difficult to ensure that the pressure after each adjustment can reach the preset value accurately.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: automatic air release valve, including the connecting sleeve, the inside screw thread connection of connecting sleeve has the adjusting stud, the top fixed connection of adjusting stud has the press plate, the inside of press plate is penetrated and has the valve core, the outside of valve core is provided with the spring, the bottom fixed connection of valve core has the conical piston, the bottom fixed connection of spring is in the top outside of conical piston, the top fixed connection of spring is in the bottom of press plate, the outside fixed connection of conical piston has the O type sealing ring, the outside screw thread connection of adjusting stud has the adjusting nut, the front side of connecting sleeve is seted up and has the air hole, the top fixed connection of valve core has the hexagonal cap.

[0007] As the further description of the above technical scheme:

[0008] The top fixed connection of hexagonal cap has the screw thread connection post, and the outside screw thread connection of screw thread connection post has the rear tail cap.

[0009] As the further description of the above technical scheme:

[0010] The outside of rear tail cap is seted up with a plurality of anti -skid groove, and a plurality of anti -skid groove all adopt annular recess design.

[0011] As the further description of the above technical scheme:

[0012] The outer wall of rear tail cap is seted up with anti -skid line, and anti -skid line adopts X -shaped cross design.

[0013] As the further description of the above technical scheme:

[0014] The inside lower part of connecting sleeve is fixedly connected with the breathable face, and a plurality of breathable holes are equidistantly seted up in the bottom of breathable face.

[0015] As the further description of the above technical scheme:

[0016] The bottom of breathable face is fixedly connected with the valve core top rod, and the valve core top rod adopts cylindrical design.

[0017] As the further description of the above technical scheme:

[0018] The inside of connecting sleeve adopts conical design, and the outside size of conical piston is matched with the inside size of connecting sleeve.

[0019] As the further description of the above technical scheme:

[0020] The outside of press plate is fixedly connected with anti -skid tooth, and the outside of anti -skid tooth adopts anti -skid design.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model discloses a preset pressure value is locked through the adjusting nut position, and spring provides the elasticity and makes the conical piston and the connecting sleeve pipe sealing surface fit, when the gas pressure exceeds the setting value, promotes the conical piston and moves up, and the gas is discharged from the air hole, and after the pressure reduces, the spring resets the conical piston, realizes the effect of automatic air release and sealing, can automatically adjust the tire air pressure according to the preset pressure value, avoids the tedious of operating personnel's multiple measurement tire pressure, ensures the tire air pressure stable in the safety range, improves the convenience of operation and the safety of tire use.

[0023] 2. The utility model discloses a hexagonal cap connects the valve core to provide the force point, and the threaded connecting column of its top is screwed with the rear tail cap, and the anti -skid groove of rear tail cap outside is convenient for the embedding finger of operating personnel, increases the friction to rotate the rear tail cap, and the anti -skid of the X -shaped cross -design of outer wall further prevents the skid, realized the effect that the rear tail cap is conveniently operated, can make operating personnel easily, accurately tighten or loosen the rear tail cap, improves the operating efficiency. DRAWINGS

[0024] Figure 1 It is the perspective view of the automatic air release valve of the utility model;

[0025] Figure 2 It is the front view of the automatic air release valve of the utility model;

[0026] Figure 3 It is the internal structure schematic view of the automatic air release valve of the utility model;

[0027] Figure 4 It is the bottom view of the connecting sleeve pipe in the automatic air release valve of the utility model;

[0028] Figure 5 It is the structure split drawing of the rear tail cap in the automatic air release valve of the utility model.

[0029] Legend:

[0030] 1, connecting sleeve pipe;2, adjusting stud;3, pressing plate;4, valve core;5, spring;6, conical piston;7, O type sealing ring;8, adjusting nut;9, air hole;10, hexagonal cap;11, threaded connecting column;12, rear tail cap;13, anti -skid groove;14, anti -skid;15, gas permeation surface;16, gas permeation hole;17, valve core top rod;18, anti -skid tooth. DETAILED DESCRIPTION

[0031] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0032] With reference to Figure 1 , Figure 2 and Figure 3 , the present application provides an embodiment: an automatic air release valve, comprising a connecting sleeve 1, a adjusting stud 2 is internally threadedly connected to the connecting sleeve 1, a pressing plate 3 is fixedly connected to the top of the adjusting stud 2, a valve core 4 penetrates through the inside of the pressing plate 3, a spring 5 is arranged outside the valve core 4, a conical piston 6 is fixedly connected to the bottom end of the valve core 4, the bottom end of the spring 5 is fixedly connected to the top outside of the conical piston 6, the top end of the spring 5 is fixedly connected to the bottom of the pressing plate 3, an O-shaped sealing ring 7 is fixedly connected to the outside of the conical piston 6, an adjusting nut 8 is threadedly connected to the outside of the adjusting stud 2, a gas release hole 9 is formed in the front side of the connecting sleeve 1, and a hexagonal cap 10 is fixedly connected to the top end of the valve core 4.

[0033] Specifically, the adjusting stud 2 is threadedly connected inside the connecting sleeve 1, by rotating the adjusting stud 2, the position of the adjusting stud 2 in the connecting sleeve 1 can be changed, thereby realizing the preliminary adjustment of the working pressure of the air release valve, the adjusting nut 8 is threadedly connected outside the adjusting stud 2, for locking the position of the adjusting stud 2, preventing displacement during operation, the pressing plate 3 is fixedly connected to the top of the adjusting stud 2, and moves up and down with the movement of the adjusting stud 2, the valve core 4 penetrates through the pressing plate 3, the bottom end of the valve core 4 is fixedly connected with the conical piston 6, and the top end of the valve core 4 is fixedly connected with the hexagonal cap 10, the hexagonal cap 10 facilitates manual operation of the valve core 4 by the operator, the spring 5 is sleeved outside the valve core 4, the bottom end of the spring 5 is fixedly connected to the top outside of the conical piston 6, and the top end of the spring 5 is fixedly connected to the bottom of the pressing plate 3, the spring 5 provides an elastic force, so that the conical piston 6 can be tightly attached to the inner sealing surface of the connecting sleeve 1, in the normal working state, when the gas pressure in the system is lower than the set value, the spring force of the spring 5 will press the conical piston 6 on the sealing surface, and the O-shaped sealing ring 7 further enhances the sealing effect, preventing gas leakage, when the gas pressure in the tire gradually rises and exceeds the set pressure value, the force of the gas pressure acting on the conical piston 6 is greater than the spring force of the spring 5, at this time, the conical piston 6 will be pushed upward, and the valve core 4 will also move upward, with the upward movement of the conical piston 6, the gas can enter the front side of the connecting sleeve 1 through the gap between the connecting sleeve 1 and the conical piston 6, and be discharged through the air release hole 9, realizing the function of automatic air release, when the gas pressure in the tire decreases to below the set value, the spring force of the spring 5 will push the conical piston 6 back downward, reattaching to the sealing surface, preventing the gas from continuing to leak, so that the automatic air release valve returns to the sealed state, according to the actual demand, the pre-tightening force of the spring 5 is adjusted, so that the air release valve can automatically seal when the tire pressure is released to the preset value, avoiding the tedious operation caused by the multiple measurements of the tire pressure by the operator during pressure adjustment.

[0034] Referring to Figure 1 and Figure 5 , the top of the hexagonal cap 10 is fixedly connected with a threaded connecting column 11, and the outer part of the threaded connecting column 11 is threadedly connected with a rear tail cap 12; a plurality of anti-skid grooves 13 are formed in the outer wall of the rear tail cap 12, and the plurality of anti-skid grooves 13 are designed in an annular groove shape; an anti-skid pattern 14 is formed in the outer wall of the rear tail cap 12, and the anti-skid pattern 14 is designed in an X-shaped cross design;

[0035] Specifically, the hexagonal cap 10 serves as the operating part at the top end of the valve core 4, which can provide an operating point for the operator. The threaded connecting column 11 fixedly connected to the top of the hexagonal cap 10 is used to be screwed with the rear cap 12. The rear cap 12 is screwed outside the threaded connecting column 11. A plurality of anti-skid grooves 13 are formed on the outside of the rear cap 12, which are mainly used to provide a better holding point for the operator when manually installing or disassembling the rear cap 12. The operator can insert his fingers into the anti-skid grooves 13 to increase the friction between the fingers and the rear cap 12, so as to more easily and stably rotate the rear cap 12 to realize the tightening or loosening operation of the rear cap 12 on the threaded connecting column 11. Anti-skid lines 14 are formed on the outer wall of the rear cap 12 and adopt an X-shaped cross design, which can effectively prevent hand slipping and ensure the accuracy and stability of the operation.

[0036] With reference to Figure 1 and Figure 4 The air-permeable surface 15 is fixedly connected to the inner lower part of the connecting sleeve 1. A plurality of air-permeable holes 16 are equidistantly formed on the bottom of the air-permeable surface 15. The valve core top rod 17 is fixedly connected to the bottom of the air-permeable surface 15 and adopts a cylindrical design. The inside of the connecting sleeve 1 adopts a conical design, and the outer dimension of the conical piston 6 matches the inner dimension of the connecting sleeve 1. The anti-skid teeth 18 are fixedly connected to the outside of the pressing plate 3 and adopt an anti-skid design.

[0037] Specifically, the air-permeable surface 15 fixedly connected to the lower middle part of the connecting sleeve 1 plays a guiding and preliminary control role on the air flow. The multiple air-permeable holes 16 equidistantly arranged at the bottom of the air-permeable surface 15 allow the gas to enter the inside of the connecting sleeve 1 uniformly from below. When the gas pressure in the tire gradually rises, the gas converges above the air-permeable surface 15 through the air-permeable holes 16. The valve core top rod 17 fixedly connected to the bottom of the air-permeable surface 15 is designed in a cylindrical shape. When the gas pressure reaches a certain level and pushes the conical piston 6 to move upward, the valve core top rod 17 will assist in guiding the direction of the air flow and help ensure the stability of the conical piston 6 during the rising process, preventing it from shaking and affecting the deflation effect. At the same time, due to the conical design of the inside of the connecting sleeve 1 and the matching outer size of the conical piston 6, under normal conditions, the elastic force of the spring 5 makes the conical piston 6 tightly fit the conical inner wall of the connecting sleeve 1, relying on the O-shaped sealing ring 7 to achieve good sealing and prevent gas leakage. Once the gas pressure exceeds the set elastic force of the spring 5, the conical piston 6 will slide upward along the conical inner wall of the connecting sleeve 1. Due to the size matching, the gas leakage amount can be accurately controlled during the sliding process, achieving timely deflation and avoiding excessive leakage. The anti-slip teeth 18 fixedly connected to the outside of the pressing plate 3 are designed with anti-slip on the outside. When manually adjusting the air pressure parameters, the anti-slip teeth 18 increase the friction between the hands and the pressing plate 3, making the operation more stable and reliable, and allowing the operator to accurately adjust the position of the conical piston 6 and further adjust the pre-tightening force of the spring 5, thereby setting the opening pressure of the automatic deflation valve.

[0038] Working principle: by rotating the adjusting stud 2 can change the position of the adjusting stud 2 in the connecting sleeve 1, thereby realizing the preliminary adjustment of the working pressure of the air release valve, the adjusting nut 8 is screwed on the outside of the adjusting stud 2, for locking the position of the adjusting stud 2, to prevent displacement during work, the pressing plate 3 is fixedly connected to the top of the adjusting stud 2, and moves up and down with the movement of the adjusting stud 2, the valve core 4 penetrates the pressing plate 3, the bottom end of which is fixedly connected with the conical piston 6, and the top end is fixedly connected with the hexagonal cap 10, which facilitates manual operation of the valve core 4 by the operator, the spring 5 is sleeved outside the valve core 4, the bottom end of which is fixedly connected to the top outside of the conical piston 6, and the top end is fixedly connected to the bottom of the pressing plate 3, the spring 5 provides an elastic force, so that the conical piston 6 can tightly fit with the internal sealing surface of the connecting sleeve 1, in the normal working state, when the gas pressure in the system is lower than the set value, the spring force of the spring 5 will press the conical piston 6 on the sealing surface, and the O-shaped sealing ring 7 further enhances the sealing effect to prevent gas leakage, when the gas pressure in the tire gradually rises and exceeds the set pressure value, the force of the gas acting on the conical piston 6 is greater than the spring force of the spring 5, at this time the conical piston 6 will be pushed upward, and the valve core 4 will also move upward, with the upward movement of the conical piston 6, the gas can enter the front side of the connecting sleeve 1 through the gap between the connecting sleeve 1 and the conical piston 6, and be discharged through the air release hole 9, realizing the function of automatic air release, when the gas pressure in the tire decreases to below the set value, the spring force of the spring 5 will push the conical piston 6 back down again, recombining with the sealing surface, preventing the gas from continuing to leak, so that the automatic air release valve returns to the sealing state;

[0039] And the hexagonal cap 10 can provide a force point for the operator, the top of which is fixedly connected with a threaded connecting column 11, which is used for threaded connection with a rear cap 12, the rear cap 12 is threaded on the outside of the threaded connecting column 11, a plurality of anti-skid grooves 13 are opened on the outside of the rear cap 12, mainly used for providing a better gripping force point for the operator when manually installing or dismounting the rear cap 12, the operator can insert his fingers into the anti-skid grooves 13 to increase the friction between the fingers and the rear cap 12, so as to rotate the rear cap 12 more easily and stably, realize the tightening or loosening operation of the rear cap 12 on the threaded connecting column 11, the anti-skid lines 14 are opened on the outer wall of the rear cap 12, and adopt X-shaped cross design, which can effectively prevent hand slipping and ensure the accuracy and stability of operation.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. Automatic air release valve comprising a connection sleeve (1), characterized in that: The inner thread of the connecting sleeve (1) is connected with an adjusting stud (2), the top of the adjusting stud (2) is fixedly connected with a pressing plate (3), the inside of the pressing plate (3) penetrates a valve core (4), the outside of the valve core (4) is provided with a spring (5), the bottom end of the valve core (4) is fixedly connected with a conical piston (6), the bottom end of the spring (5) is fixedly connected on the top outside of the conical piston (6), the top end of the spring (5) is fixedly connected on the bottom of the pressing plate (3), the outside of the conical piston (6) is fixedly connected with an O-shaped sealing ring (7), the outside of the adjusting stud (2) is threadedly connected with an adjusting nut (8), the front side of the connecting sleeve (1) is provided with a gas leak hole (9), and the top end of the valve core (4) is fixedly connected with a hexagonal cap (10).

2. The automatic air release valve of claim 1, wherein: The top of the hexagonal cap (10) is fixedly connected with a threaded connecting column (11), and the outside of the threaded connecting column (11) is threadedly connected with a rear tail cap (12).

3. The automatic air release valve of claim 2, wherein: The outside of the rear tail cap (12) is provided with a plurality of anti-skid grooves (13), and the plurality of anti-skid grooves (13) are designed in an annular groove.

4. The automatic air release valve of claim 2, wherein: The outer wall of the rear tail cap (12) is provided with anti-skid lines (14), and the anti-skid lines (14) are designed in an X-shaped cross design.

5. The automatic air release valve of claim 1, wherein: The inner side of the connecting sleeve (1) is fixedly connected with a breathable surface (15) in the middle and lower part, and a plurality of breathable holes (16) are equidistantly arranged on the bottom of the breathable surface (15).

6. The automatic air release valve of claim 5, wherein: The bottom of the breathable surface (15) is fixedly connected with a valve core top rod (17), and the valve core top rod (17) is designed in a cylindrical shape.

7. The automatic air release valve of claim 1, wherein: The inside of the connecting sleeve (1) is designed in a conical shape, and the outer dimension of the conical piston (6) matches the inner dimension of the connecting sleeve (1).

8. The automatic air release valve of claim 1, wherein: The outside of the pressing plate (3) is fixedly connected with an anti-skid tooth (18), and the outside of the anti-skid tooth (18) is designed in an anti-skid design.

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