Universal low-cost trace exhaust valve

Abstract

The utility model discloses a universal low-cost trace exhaust valve which comprises a shell, a floating ball is arranged in the middle of the inner side of the shell, a connecting pipe is fixedly arranged in the middle of the inner side of the floating ball, a floating cavity is fixedly formed in the lower end of the connecting pipe, and a pressure relief mechanism is fixedly arranged at the upper end of the connecting pipe. The pressure relief mechanism comprises a pressure relief head, a sealing ball, a spring, a movable head and an extrusion head, the pressure relief head is fixedly arranged at the upper end of the connecting pipe, the sealing ball is movably clamped in the pressure relief head, the spring is arranged at the position, at the upper end of the sealing ball, in the pressure relief head, and the movable head is movably screwed to the outer side surface of the pressure relief head through threads. And an extrusion head is fixedly arranged in the movable head. The exhaust valve and the pressure release valve are integrated together, the overall structure is simple, the cost is low, meanwhile, due to the fact that the exhaust valve and the pressure release valve are integrated together, only one installation position is needed, universality is high, and application and popularization can be facilitated.

Description

Technical Field

[0001] This utility model relates to the field of exhaust valve technology, specifically a general-purpose, low-cost, micro-volume exhaust valve. Background Technology

[0002] The exhaust valve is a key component in a fluid system used to automatically remove gas accumulated in pipes or equipment. Its core functions are to maintain stable system pressure, prevent gas blockage, and improve operating efficiency.

[0003] However, the existing vent valves of this type have a single function. That is, after the liquid level inside the storage device rises to a predetermined height, the vent valve will automatically close under the action of buoyancy. Thus, the entire valve cannot continue to vent or relieve pressure. Therefore, the pipeline or storage device needs to be equipped with an additional pressure relief valve, which is more troublesome to use. It requires the installation of at least two valves: a vent valve and a pressure relief valve. Therefore, a universal, low-cost micro-vent valve is needed to address this problem. Utility Model Content

[0004] The purpose of this invention is to provide a universal, low-cost, micro-venting valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a general-purpose, low-cost micro-venting valve, comprising a housing, a float ball disposed in the middle of the inner side of the housing, a connecting pipe fixedly disposed in the middle of the inner side of the float ball, a float cavity fixedly disposed at the lower end of the connecting pipe, and a pressure relief mechanism fixedly disposed at the upper end of the connecting pipe. The pressure relief mechanism includes a pressure relief head, a sealing ball, a spring, a movable head, and a compression head. The pressure relief head is fixedly disposed at the upper end of the connecting pipe, a sealing ball ball is movably engaged inside the pressure relief head, a spring is disposed above the sealing ball ball inside the pressure relief head, a movable head is movably engaged by a thread on the outer surface of the pressure relief head, and a compression head is fixedly disposed inside the movable head.

[0006] Preferably, a through hole is provided in the middle of the inner side of the extrusion head, through which water or other liquids can be discharged to release pressure when the sealing ball moves upward.

[0007] Preferably, a limiting block is fixedly provided inside the shell at the lower end of the float. The limiting block can prevent the float from falling off the shell. When the water does not overflow the float cavity, the float cavity should fit against the surface of the limiting block under the action of gravity. In this way, a gap will be generated between the float and the shell, so that air can be released.

[0008] Preferably, a sealing ring is fixedly provided on the inner side wall of the shell. When the float cavity and the float ball are lifted by buoyancy, they will be in close contact with the sealing ring, thereby creating a sealing effect between the float ball and the sealing ring.

[0009] Preferably, the outer surface of the lower end of the housing is provided with threads, which can be used to easily fix the entire device to the target position.

[0010] Preferably, the pressure relief head has a narrow opening at its lower end. This narrow opening, in conjunction with the sealing ball of the spring, ensures that the pressure relief head remains sealed as long as the pressure does not reach the threshold.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model integrates the exhaust valve and the pressure relief valve together, and the overall structure is simple and low in cost. At the same time, since it is integrated together, it only requires one installation position, which makes it highly versatile and easy to promote and use.

[0013] 2. When water overflows the float cavity, the float cavity and float ball move upwards due to buoyancy, causing the float ball and sealing ring to adhere tightly, thus creating a seal and preventing leakage. However, when the device is full of water, if the internal pressure exceeds a threshold, the spring will contract, causing the sealing ball to move upwards. This breaks the seal between the narrow opening and the sealing ball, thus relieving pressure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a general-purpose, low-cost, micro-volume exhaust valve according to the present invention.

[0015] Figure 2 This is a cross-sectional view of a general-purpose, low-cost, micro-venting valve according to the present invention. Figure 1 ;

[0016] Figure 3 This is a cross-sectional view of a general-purpose, low-cost, micro-venting valve according to the present invention. Figure 2 ;

[0017] Figure 4 This utility model relates to a general-purpose, low-cost, micro-volume exhaust valve. Figure 2 The front view;

[0018] Figure 5 This utility model relates to a general-purpose, low-cost, micro-volume exhaust valve. Figure 3 A magnified view of point A in the middle.

[0019] In the diagram: 1. Shell; 2. Float; 3. Connecting pipe; 4. Float cavity; 5. Pressure relief head; 6. Sealing ball; 7. Spring; 8. Moving head; 9. Extrusion head; 10. Through hole; 11. Limiting block; 12. Sealing ring; 13. Narrow opening. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This utility model provides a technical solution: a general-purpose, low-cost micro-venting valve, including a housing 1, a float 2 disposed in the middle of the inner side of the housing 1, a connecting pipe 3 fixedly disposed in the middle of the inner side of the float 2, a float cavity 4 fixedly disposed at the lower end of the connecting pipe 3, and a pressure relief mechanism fixedly disposed at the upper end of the connecting pipe 3. The pressure relief mechanism includes a pressure relief head 5, a sealing ball 6, a spring 7, a movable head 8, and a squeezing head 9. The pressure relief head 5 is fixedly disposed at the upper end of the connecting pipe 3. The sealing ball 6 is movably engaged inside the pressure relief head 5. The spring 7 is disposed at the upper end of the sealing ball 6 inside the pressure relief head 5. The movable head 8 is movably engaged on the outer surface of the pressure relief head 5 through a thread. The squeezing head 9 is fixedly disposed inside the movable head 8.

[0022] The extrusion head 9 has a through hole 10 in the middle of its inner side. This through hole 10 can be used to release pressure and discharge water or other liquids when the sealing ball 6 moves upward.

[0023] Inside the housing 1, a limiting block 11 is fixedly installed at the lower end of the float 2. The limiting block 11 can prevent the float 2 from falling off the housing 1. When the water does not overflow the float cavity 4, the float cavity 4 should be in contact with the surface of the limiting block 11 under the action of gravity. In this way, a gap will be generated between the float 2 and the housing 1, so that air can be released.

[0024] A sealing ring 12 is fixedly provided on the inner side wall of the housing 1. When the float cavity 4 and the float ball 2 are lifted by buoyancy, they will be tightly attached to the sealing ring 12, thereby creating a sealing effect between the float ball 2 and the sealing ring 12.

[0025] The outer surface of the lower end of the housing 1 is provided with threads, which can be used to easily fix the entire device to the target position.

[0026] The pressure relief head 5 has a narrow opening 13 at its lower end. Through this narrow opening 13, in conjunction with the sealing ball 6 of the spring 7, the pressure relief head 5 can maintain a sealed state as long as the pressure does not reach the threshold.

[0027] Working principle: When using this device, the exhaust valve and pressure relief valve are integrated together, and the overall structure is simple and low in cost. At the same time, since it is integrated, only one installation position is needed, which makes it highly versatile and easy to promote and use.

[0028] When the water does not overflow the float cavity 4, the float cavity 4 should fit against the surface of the limiting block 11 under the action of gravity. This creates a gap between the float ball 2 and the shell 1, allowing for air venting. When the water overflows the float cavity 4, the float cavity 4 and the float ball 2 move upward under buoyancy, causing the float ball 2 to fit tightly against the sealing ring 12, thus creating a seal and preventing leakage. When the device is full of water, if the internal pressure of the tank continues to rise and exceeds the threshold, it will compress the spring 7, causing the sealing ball 6 to move upward. This will prevent the narrow opening 13 from sealing the sealing ball 6, thus releasing pressure.

[0029] Meanwhile, when using this device, the downward movement of the extrusion head 9 can be changed by rotating the movable head 8, thereby changing the compression degree of the spring 7. This changes the pressure required to push the sealing ball 6 upward each time, thus further improving the effectiveness of the device.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A general-purpose, low-cost, micro-venting valve, comprising a housing (1), characterized in that: A float (2) is provided in the middle of the inner side of the shell (1). A connecting pipe (3) is fixedly provided in the middle of the inner side of the float (2). A float cavity (4) is fixedly provided at the lower end of the connecting pipe (3). A pressure relief mechanism is fixedly provided at the upper end of the connecting pipe (3). The pressure relief mechanism includes a pressure relief head (5), a sealing ball (6), a spring (7), a movable head (8), and a squeezing head (9). A pressure relief head (5) is fixedly provided at the upper end of the connecting pipe (3). A sealing ball (6) is movably engaged inside the pressure relief head (5). A spring (7) is provided at the upper end of the sealing ball (6) inside the pressure relief head (5). A movable head (8) is movably engaged on the outer surface of the pressure relief head (5) through a thread. A squeezing head (9) is fixedly provided inside the movable head (8).

2. The universal low-cost micro-venting valve according to claim 1, characterized in that: A through hole (10) is provided in the middle of the inner side of the extrusion head (9).

3. The universal low-cost micro-venting valve according to claim 1, characterized in that: Inside the housing (1), a limiting block (11) is fixedly installed at the lower end of the float (2).

4. The universal low-cost micro-venting valve according to claim 1, characterized in that: A sealing ring (12) is fixedly provided on the inner side wall of the housing (1).

5. A general-purpose, low-cost, micro-volume exhaust valve according to claim 1, characterized in that: The outer surface of the lower end of the housing (1) is threaded.

6. A universal, low-cost, micro-volume exhaust valve according to claim 1, characterized in that: The pressure relief head (5) has a narrow opening (13) at its lower interior.

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