CN219796235U

CN219796235U - Pipeline type breather valve

Info

Publication number: CN219796235U
Application number: CN202321105877.8U
Authority: CN
Inventors: 李凡力; 肖萝萝; 李振银
Original assignee: Zhejiang Litai Valve Co ltd
Current assignee: Zhejiang Litai Valve Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-10-03
Anticipated expiration: 2033-05-08

Abstract

The utility model belongs to the technical field of breather valves, and particularly relates to a pipeline type breather valve, which comprises: the valve body is in a pipeline shape, two ends of the valve body are provided with air outlet holes and mounting holes, and the side wall of the valve body is provided with an air channel; the first valve block is arranged in the valve body, and the end part of the first valve block is clamped with the air outlet hole; the end cover is in threaded connection with the mounting hole of the valve body; the first spring is arranged in the valve body; wherein, both ends of the first spring contact the end cover and the first valve block respectively; the utility model has the beneficial effects that the compression degree of the first spring is changed by changing the depth degree of the threaded connection of the end cover and the mounting hole, so that the positive pressure threshold value is indirectly changed, the positive pressure threshold value of the breather valve can be adapted to more different devices, and the applicability of the breather valve is improved.

Description

Pipeline type breather valve

Technical Field

The utility model belongs to the technical field of breather valves, and particularly relates to a pipeline type breather valve.

Background

The breather valve is commonly used for reducing volatilization of a medium in the storage tank, and is also a safety valve for guaranteeing pressure balance inside and outside the storage tank. When the pressure of the medium in the tank is within the preset pressure range of the breather valve, the breather valve does not work, and the tightness of the storage tank is maintained; when medium is added into the storage tank to increase the pressure in the tank and the set positive pressure threshold of the breather valve is reached, the pressure valve is jacked up, and gas escapes from the exhalation port of the breather valve, so that the pressure in the tank is not increased continuously; when the medium in the storage tank is reduced or pumped out, the pressure of the gas in the tank is reduced to reach the set negative pressure threshold value of the breather valve, and the atmosphere outside the tank pushes the negative pressure valve disc of the breather valve open, so that the external gas enters the tank, and the pressure in the tank is not reduced continuously.

In the prior art, the positive and negative pressure of most breather valves is determined by the weight of valve discs, so that the positive and negative pressure values of the breather valves cannot be regulated and changed, and therefore, the breather valves are single in applicable objects and cannot meet the requirements of other devices with different pressure values in a tank body.

Disclosure of Invention

The utility model aims at solving the technical problems, and provides a pipeline type breather valve which achieves the effect of adjustable pressure threshold.

In view of this, the present utility model provides a pipeline-type breather valve comprising:

the valve body is in a pipeline shape, two ends of the valve body are provided with air outlet holes and mounting holes, and the side wall of the valve body is provided with an air channel;

the first valve block is arranged in the valve body, and the end part of the first valve block is clamped with the air outlet hole;

the end cover is arranged on the mounting hole of the valve body;

the first spring is arranged in the valve body;

wherein, the both ends of first spring contact end cover and first valve piece respectively.

Further, a placing groove and an air inlet hole are formed in the first valve block, and the air inlet hole penetrates through the first valve block and is communicated with the bottom of the placing groove;

still include the subassembly of breathing in, the subassembly of breathing in is installed in first valve piece, and the subassembly of breathing in includes:

the second valve block is clamped with the air inlet hole;

the ventilation cover is arranged at the notch of the placing groove;

and two ends of the second spring are respectively contacted with the ventilation cover and the second valve block.

Wherein, the ventilation cover is provided with a ventilation hole.

Further, an internal thread structure is arranged on the notch of the placing groove, an external thread structure matched with the internal thread structure is arranged on the ventilation cover, and the ventilation cover is installed on the notch in a threaded connection mode.

Further, the end part of the first valve block, which is clamped with the air outlet hole, is cone-shaped.

Furthermore, the end part of the second valve block, which is clamped with the air inlet hole, is also cone-shaped.

Further, a first annular groove is formed in the first valve block, a second annular groove is formed in the end cover, and two ends of the first spring are respectively arranged in the first annular groove and the second annular groove.

Further, a handle is further arranged on the end cover.

The beneficial effects of the utility model are as follows:

1. through the depth degree that changes end cover and mounting hole threaded connection, make the compression degree of first spring change to indirect positive pressure threshold of having changed, make the positive pressure threshold of breather valve can adapt to more different equipment, improve the suitability of breather valve.

2. Through changing the threaded connection depth degree of ventilation cover and standing groove, make the compression degree of second spring change to indirectly changed the negative pressure threshold, made the negative pressure threshold of breather valve also can adapt to more different equipment, improved the suitability.

3. The handle is arranged on the surface of the end cover exposed outside, and can be convenient for operators to adjust the depth of the threaded connection of the end cover through arranging the mounting handle, so that the convenience of adjusting the positive pressure threshold value is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the present utility model;

FIG. 3 is a schematic view of the structure of the exhalation module of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 2A in accordance with the present utility model;

the label in the figure is:

1. a valve body; 11. an air outlet hole; 12. a mounting hole; 13. an air passage; 2. a first valve block; 21. a placement groove; 22. an air inlet hole; 23. a first ring groove; 3. an end cap; 31. a second ring groove; 4. a first spring; 5. a second valve block; 6. an air vent cover; 61. a vent hole; 7. a second spring; 8. a handle; 9. and a flange plate.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present utility model, fall within the scope of protection of the present utility model.

In the description of the present utility model, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present utility model. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Example 1:

the present embodiment provides a pipe-type breather valve, including:

the valve body 1 is in a pipeline shape, two ends of the valve body 1 are provided with air outlet holes 11 and mounting holes 12, and the side wall of the valve body 1 is provided with an air channel 13;

the first valve block 2 is arranged in the valve body 1, and the end part of the first valve block 2 is clamped with the air outlet hole 11;

the end cover 3 is installed on the installation hole 12 of the valve body 1 in a threaded connection manner;

the first spring 4 is arranged in the valve body 1;

wherein both ends of the first spring 4 contact the end cap 3 and the first valve block 2, respectively.

In the technical scheme, a valve body 1 is of a pipeline-shaped structure, an air channel 13 communicated with outside air is arranged on the side wall of the valve body 1, air outlet holes 11 and mounting holes 12 are formed in two ends of the valve body 1, a first valve block 2 is arranged at the air outlet holes 11 of the valve body 1, the first valve block 2 is clamped with the air outlet holes 11, an end cover 3 is arranged on the mounting holes 12 of the valve body 1, a first spring 4 is arranged between the end cover 3 and the first valve block 2, two ends of the first spring 4 respectively abut against the end cover 3 and the first valve block 2, and the first spring 4 is extruded by the end cover 3 and the first valve block 2; the end part provided with the air outlet hole 11 is welded with the flange 9, the valve body 1 is connected with the tank body through the flange 9, the valve body is clamped with the air outlet hole 11 through the first valve block 2, and then the first valve block 2 is tightly attached to the air outlet hole 11 by matching with the elastic force generated by the extrusion of the first spring 4, so that the gas in the tank body is prevented from leaking into the valve body 1. When medium is supplemented into the tank or the medium is heated and evaporated, so that the pressure in the tank is larger than the gravity of the first valve block 2 and the first spring 4 generates elasticity, the first valve block 2 is pushed away from the air outlet hole 11, gas in the tank enters the valve body 1 from the air outlet hole 11 and is discharged to the outside through the air channel 13 until the pressure in the tank is reduced, and the first spring 4 can push the first valve block 2 to be clamped with the air outlet hole 11 again to keep sealing, so that gas leakage is prevented.

Be equipped with external screw thread structure on the outer wall of end cover 3, be equipped with the internal screw thread structure of looks adaptation in the mounting hole 12 of first valve piece 2, end cover 3 threaded connection installs on first valve body 1, through the degree of depth that changes end cover 3 and mounting hole 12 threaded connection, thereby change the compression degree of first spring 4, the elasticity that makes first spring 4 produce is different, thereby the indirect positive pressure threshold that has changed, make the positive pressure threshold of breather valve can adapt to more different equipment, improve the suitability of breather valve effectively.

Example 2:

the present embodiment provides a pipe-type breather valve having the following technical features in addition to the technical scheme including the above embodiment.

Further, the first valve block 2 is provided with a placement groove 21 and an air inlet hole 22, and the air inlet hole 22 penetrates through the first valve block 2 and is communicated with the bottom of the placement groove 21;

still include the subassembly of breathing in, the subassembly of breathing in is installed in first valve piece 2, and the subassembly of breathing in includes:

the second valve block 5 is clamped with the air inlet hole 22;

a ventilation cover 6, the ventilation cover 6 being mounted at a notch of the placement groove 21;

and a second spring 7, both ends of the second spring 7 are respectively contacted with the ventilation cover 6 and the second valve block 5.

Wherein the ventilation cover 6 is provided with a ventilation hole 61.

Further, an internal thread structure is arranged on the notch of the placement groove 21, an external thread structure matched with the internal thread structure is arranged on the ventilation cover 6, and the ventilation cover 6 is installed on the notch in a threaded connection mode.

In this technical scheme, be equipped with standing groove 21 on the tip that first valve piece 2 contacted with venthole 11, the bottom of standing groove 21 is equipped with the inlet port 22 that runs through first valve piece 2, second valve piece 5 is installed in standing groove 21 and with inlet port 22 joint, the notch department of standing groove 21 installs and is equipped with vent cap 6, be equipped with second spring 7 between vent cap 6 and second valve piece 5, the both ends of second spring 7 are contradicted vent cap 6 and second valve piece 5 respectively, and second spring 7 receives vent cap 6 and the extrusion of second valve piece 5, produce elasticity and make second valve piece 5 closely laminate with inlet port 22 and prevent external gas entering jar internally.

When the medium is pumped out of the tank or cooled and condensed, and the pressure in the tank is reduced to cause the external air pressure to be larger than the elasticity of the pressure in the tank and the spring, the second valve block 5 is pushed away from the air inlet hole 22 by the external air, and the external air enters the tank through the air inlet and the vent hole 61 on the vent cover 6, so that the pressure in the tank is not reduced continuously, and the air pressure in the tank and the air pressure outside the tank are basically balanced, thereby protecting the safety of the tank.

Be equipped with internal thread structure on the notch of standing groove 21, be equipped with the external thread structure of looks adaptation on ventilation lid 6, ventilation lid 6 threaded connection installs in notch department, through the threaded connection degree of change ventilation lid 6 and standing groove 21 to change the compression degree of second spring 7, make the elasticity that second spring 7 produced different, thereby indirectly changed the negative pressure threshold, make the negative pressure threshold of breather valve also can adapt to more different equipment, improve the suitability.

Example 3:

Further, the end portion of the first valve block 2, which is clamped with the air outlet hole 11, is cone-shaped.

Further, the end portion of the second valve block 5, which is clamped with the air inlet hole 22, is also cone-shaped.

In this technical scheme, the tip of first valve piece 2 and venthole 11 joint is the cone form, and the tip of second valve piece 5 and inlet port 22 joint also is the cone form, makes the joint contact of first valve piece 2 and venthole 11 closely laminate more (the joint contract of second valve piece 5 and inlet port 22) through setting up the joint structure of cone form, improves the leakproofness, prevents that gas from revealing, strengthens the guard action.

Example 5:

Further, the first valve block 2 is provided with a first annular groove 23, the end cover 3 is provided with a second annular groove 31, and two ends of the first spring 4 are respectively arranged in the first annular groove 23 and the second annular groove 31.

In this technical scheme, be equipped with first annular 23 on first valve piece 2, be equipped with second annular 31 on end cover 3, first spring 4's both ends are located respectively in first annular 23 and the second annular 31, utilize the structural design of first annular 23 and second annular 31 to play spacing effect to first spring 4, prevent that first spring 4 from taking place the skew, reinforcing first spring 4's installation stability.

Example 6:

Further, a handle 8 is further provided on the end cover 3.

In this technical scheme, be equipped with handle 8 on the surface of end cover 3 exposing outside, can make things convenient for operating personnel to adjust end cover 3 threaded connection's depth degree through setting up installation handle 8, improve the convenience of adjusting the malleation threshold.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, in which the embodiments of the present utility model and features of the embodiments may be combined with each other without conflict, the present utility model is not limited to the above-described embodiments, which are merely illustrative, not restrictive, of the present utility model, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are protected by the present utility model.

Claims

1. A ducted respiratory valve, comprising:

the valve comprises a valve body (1), wherein the valve body (1) is in a pipeline shape, air outlet holes (11) and mounting holes (12) are formed in two ends of the valve body (1), and an air channel (13) is formed in the side wall of the valve body (1);

the first valve block (2) is arranged in the valve body (1), and the end part of the first valve block (2) is clamped with the air outlet hole (11);

the end cover (3) is in threaded connection with the mounting hole (12) of the valve body (1);

the first spring (4) is arranged in the valve body (1);

wherein, both ends of first spring (4) contact end cover (3) and first valve piece (2) respectively.

2. A pipeline-type breather valve according to claim 1, characterized in that the first valve block (2) is provided with a placing groove (21) and an air inlet hole (22), and the air inlet hole (22) penetrates through the first valve block (2) and is communicated with the bottom of the placing groove (21);

still include the subassembly of breathing in, the subassembly of breathing in is installed in first valve piece (2), and the subassembly of breathing in includes:

the second valve block (5) is clamped with the air inlet hole (22);

an air vent cover (6), wherein the air vent cover (6) is arranged at a notch of the placing groove (21);

a second spring (7), wherein two ends of the second spring (7) are respectively contacted with the ventilation cover (6) and the second valve block (5);

wherein the ventilation cover (6) is provided with a ventilation hole (61).

3. A pipeline-type breather valve according to claim 2, characterized in that the notch of the placing groove (21) is provided with an internal thread structure, the ventilation cover (6) is provided with an external thread structure which is matched with the internal thread structure, and the ventilation cover (6) is installed in the notch in a threaded connection manner.

4. A pipeline-type breather valve according to claim 1, wherein the end portion of the first valve block (2) clamped with the air outlet hole (11) is cone-shaped.

5. A pipe-type breather valve according to claim 2, wherein the end of the second valve block (5) which is engaged with the air intake hole (22) is also cone-shaped.

6. A pipeline type breather valve according to claim 1, wherein the first valve block (2) is provided with a first annular groove (23), the end cover (3) is provided with a second annular groove (31), and two ends of the first spring (4) are respectively arranged in the first annular groove (23) and the second annular groove (31).

7. A pipeline-type breather valve according to claim 1, characterized in that the end cap (3) is further provided with a handle (8).