CN215807879U - Low-pressure bottle mouth valve - Google Patents
Low-pressure bottle mouth valve Download PDFInfo
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- CN215807879U CN215807879U CN202121403211.1U CN202121403211U CN215807879U CN 215807879 U CN215807879 U CN 215807879U CN 202121403211 U CN202121403211 U CN 202121403211U CN 215807879 U CN215807879 U CN 215807879U
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Abstract
The utility model discloses a low-pressure bottle opening valve which comprises a valve body, wherein the valve body is provided with an air inlet communicated with an air outlet end of an external air bottle and an air outlet formed on one side opposite to the valve body; the valve core and valve rod assembly is integrated on one side of the valve body; the knob can drive the valve core and valve rod assembly to rotate so as to adjust the relative position of the valve core and valve rod assembly and the valve body; the part of the valve core and valve rod assembly embedded in the valve body is provided with a plurality of sealing structures. The bottleneck valve is provided with the valve core and valve rod assembly, the rupture disk and the pressure gauge through the matching cavities at different positions respectively, and meanwhile, the air inlet, the second matching cavity, the first matching cavity and the air outlet which are communicated in sequence are designed inside the bottleneck valve.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a low-pressure bottle mouth valve.
Background
The common gas cylinder valve is widely used on a gas cylinder gas supply system and is arranged at the outlet of a gas cylinder, and the bottle opening valve ensures that gas is sealed and has no leakage during storage.
Generally, when a gas cylinder valve is opened for exhausting gas, gas with stable pressure can be continuously output; the cylinder mouth valve of the gas cylinder in the prior art is usually of a split structure, the functions of opening and closing, pressure reduction and safety are separated, the structure is complex, the structure size is large, the occupied space is large, and the sealing performance is poor.
Therefore, in view of the above technical problems, there is a need for developing a novel low-pressure bottle-mouth valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-pressure bottle mouth valve which is high in integration level, small in structural size and good in sealing performance.
In order to achieve the above purpose, the utility model provides the following technical scheme:
the utility model provides a low-pressure bottle mouth valve, which comprises:
the valve body is provided with an air inlet communicated with an air outlet end of an external air bottle and an air outlet formed on the opposite side of the valve body;
the valve core and valve rod assembly is integrated on one side of the valve body;
the poppet stem assembly is partially embedded in the valve body, and the poppet stem assembly partially extends to the outside of the valve body;
a knob is arranged on the part of the valve core and valve rod assembly extending to the outside of the valve body;
the valve core and valve rod assembly is in threaded connection with the inside of the valve body;
the knob can drive the valve core and valve rod assembly to rotate so as to adjust the relative position of the valve core and valve rod assembly and the valve body;
the part of the valve core and valve rod assembly embedded in the valve body is provided with a plurality of sealing structures.
Further, a matching cavity is formed inside the valve body;
the matching cavity is divided into a first matching cavity positioned on the right side of the valve body and a second matching cavity positioned on the left side of the valve body;
the gas inlet is communicated with the second matching cavity part, the second matching cavity is communicated with the first matching cavity part, and the first matching cavity is communicated with the gas outlet part to form a gas channel.
Further, the valve plug and valve rod assembly is configured to be driven by the knob to move towards the outside of the valve body so as to open the channel between the second matching cavity and the first matching cavity; and
and the knob drives a structure which moves towards the interior of the valve body to close the passage between the second matching cavity and the first matching cavity.
Further, the poppet stem assembly includes:
a valve stem, one end of which is configured as a cartridge fitting end and the other end of which is configured as a knob mounting end;
the valve core is arranged at the valve core assembling end of the valve rod;
the valve core is fixedly connected with the valve core assembling end and is in threaded connection with the first matching cavity of the valve body;
the knob is fixedly connected to the knob mounting end, and the knob drives the valve core to rotate through the valve rod so as to be connected with the valve body through threads of the valve core and move along the axial direction of the first matching cavity;
the part of the valve rod extending into the first matching cavity is sequentially sleeved with an annular sealing gasket and a sealing ring;
one side of the valve core, which is close to the second matching cavity, is provided with a valve core groove, and a sealing gasket is embedded in the valve core groove;
the annular sealing gasket, the sealing ring and the sealing gasket are all the sealing structures.
Furthermore, a pressing cap is embedded at one end of the first matching cavity facing the knob;
the pressing cap is provided with a first pressing cap body which can be embedded into the first matching cavity and a second pressing cap body which is arranged outside the first matching cavity;
the valve rod penetrates through the pressing cap along the axial direction of the pressing cap;
a left pressing cap cavity is formed inside the first pressing cap body, and a right pressing cap cavity is formed inside the second pressing cap body;
the sealing ring is embedded into the left cavity of the pressing cap;
a pressure spring is sleeved outside the part of the valve rod, which is positioned in the right chamber of the pressure cap;
one end of the pressure spring is in contact with the inner wall of the right chamber of the pressure cap, and the other end of the pressure spring extends to the knob and is in contact with the knob.
Further, the knob orientation valve body one side is formed with the knob chamber, press the cap second body to arrange in the knob intracavity, just the valve rod with the knob passes through the locating pin and links firmly.
Furthermore, the sectional dimension of the valve core assembling end is larger than that of the valve rod, the annular sealing gasket is arranged at the transition position of the valve core assembling end and the valve rod, and the annular sealing gasket is contacted with the inner wall of the first matching cavity;
the valve core assembling end is provided with a slot, and an inserting block protrudes from one end of the valve core matched with the valve core assembling end;
the valve core and the valve core assembling end form a fixed connection structure through the insertion and fixation of the insertion block and the insertion groove.
Furthermore, a rupture disk is connected in the second matching cavity in a threaded manner.
Further, a third matching cavity is formed in the valve body;
and a pressure gauge is arranged in the third matching cavity.
In the technical scheme, the low-pressure bottle mouth valve provided by the utility model has the following beneficial effects:
the bottleneck valve is provided with the valve core and valve rod assembly, the rupture disk and the pressure gauge through the matching cavities at different positions respectively, and meanwhile, the air inlet, the second matching cavity, the first matching cavity and the air outlet which are communicated in sequence are designed inside the bottleneck valve.
The bottle mouth valve of the utility model is provided with three sealing structures of a sealing ring, a sealing gasket and an annular sealing gasket at different positions of the valve rod and the valve core, and can ensure the sealing effect of the corresponding positions of the valve rod and the valve core from different positions.
According to the bottleneck valve, the pressure gauge is arranged on the valve body, the internal air pressure is monitored in real time through the pressure gauge, and meanwhile, the rupture disk is utilized to avoid overpressure, so that the safety is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is an exploded view of a low-pressure bottle-mouth valve according to an embodiment of the present invention;
fig. 2 is a structural sectional view of a low-pressure bottle-mouth valve according to an embodiment of the present invention.
Description of reference numerals:
1. a valve body; 2. a valve stem; 3. a valve core; 4. pressing the cap; 5. a knob; 6. positioning pins; 7. a rupture disk; 8. a pressure gauge;
101. an air inlet; 102. an air outlet; 103. a first mating cavity; 104. a second mating cavity; 105. a third mating cavity;
201. a valve core assembly end; 202. a button mounting end; 203. a slot; 204. an annular seal; 205. a seal ring;
301. inserting a block; 302. sealing gaskets;
401. a first body of the press cap; 402. a second body of the press cap; 403. a pressure spring; 404. a gland left chamber; 405. and pressing the right chamber.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
See fig. 1-2;
the utility model provides a low-pressure bottle mouth valve, which comprises:
the gas cylinder comprises a valve body 1, wherein the valve body 1 is provided with a gas inlet 101 communicated with a gas outlet end of an external gas cylinder and a gas outlet 102 formed on one side opposite to the valve body 1;
a valve core and valve rod component integrated at one side of the valve body 1;
the valve core and valve rod component is partially embedded in the valve body 1, and the valve core and valve rod component partially extends to the outside of the valve body 1;
a knob 5 is arranged on the part of the valve core and valve rod assembly extending to the outside of the valve body 1;
the valve core and valve rod assembly is in threaded connection with the interior of the valve body 1;
the knob 5 can drive the valve core and valve rod assembly to rotate so as to adjust the relative position of the valve core and valve rod assembly and the valve body 1;
the part of the valve core and valve rod assembly embedded in the valve body 1 is provided with a plurality of sealing structures.
Specifically, this embodiment discloses a novel low pressure bottleneck valve structure, and it includes valve body 1 to and the case valve rod structure of assembly on valve body 1, this case valve rod structure can remove for valve body 1, and change the break-make condition of inside gas circuit from this. In addition, in order to improve the sealing effect, sealing structures are designed at different positions of the valve core and valve rod assembly, and the sealing effect is improved by a plurality of sealing structures.
Preferably, in the present embodiment, a matching cavity is formed inside the valve body 1;
the matching cavity is divided into a first matching cavity 103 positioned on the right side of the valve body 1 and a second matching cavity 104 positioned on the left side of the valve body 1;
the gas inlet 101 is partially communicated with the second matching cavity 104, the second matching cavity 104 is partially communicated with the first matching cavity 103, and the first matching cavity 103 is partially communicated with the gas outlet 102 to form a gas channel.
Preferably, the valve core valve rod assembly in the embodiment is configured to be driven by the knob 5 to move towards the outside of the valve body 1 so as to open the passage between the second matching cavity 104 and the first matching cavity 103; and
a structure which is driven by the knob 5 to move toward the inside of the valve body 1 to close the passage between the second fitting chamber 104 and the first fitting chamber 103.
First, this embodiment specifically describes that the on-off state is realized by the position of the spool/stem assembly when the first mating chamber 103 and the second mating chamber 104 are in the communication state, and therefore, the spool/stem assembly can move along the axial direction of the spool/stem assembly relative to the valve body 1 to switch the on-off state of the air passage.
More specifically:
the poppet valve stem assembly includes:
a valve rod 2, one end of the valve rod 2 is configured as a valve core assembling end 201, and the other end of the valve rod 2 is configured as a knob installing end 202;
a valve element 3 mounted on the valve element mounting end 201 of the valve rod 2;
the valve core 3 is fixedly connected with the valve core assembling end 201, and the valve core 3 is in threaded connection with the first matching cavity 103 of the valve body 1;
the knob 5 is fixedly connected to the knob mounting end 202, and the knob 5 drives the valve core 3 to rotate through the valve rod 2 so as to be connected with the valve body 1 through the valve core 3 in a threaded manner and move along the axial direction of the first matching cavity 103;
the part of the valve rod 2 extending into the first matching cavity 103 is sequentially sleeved with an annular sealing gasket 204 and a sealing ring 205;
one side of the valve core 3, which is close to the second matching cavity 104, is provided with a valve core groove, and a sealing gasket 302 is embedded in the valve core groove;
the annular sealing gasket 204, the sealing ring 205 and the sealing gasket 302 are all sealing structures.
Wherein, the pressing cap 4 is embedded at one end of the first matching cavity 103 facing the knob 5;
the press cap 4 has a press cap first body 401 capable of being embedded in the first fitting cavity 103, and a press cap second body 402 disposed outside the first fitting cavity 103;
the valve rod 2 penetrates through the pressing cap 4 along the axial direction of the pressing cap 4;
a left pressing cap cavity 404 is formed inside the first pressing cap body 401, and a right pressing cap cavity 405 is formed inside the second pressing cap body 402;
the sealing ring 205 is embedded in the left chamber 404 of the press cap;
a pressure spring 403 is sleeved outside the part of the valve rod 2, which is positioned in the right chamber 405 of the pressure cap;
the compression spring 403 has one end in contact with the inner wall of the compression cap right chamber 405 and the other end extending to the knob 5 and in contact with the knob 5.
In addition, a knob cavity is formed on one side of the knob 5 facing the valve body 1, the second pressing cap body 402 is arranged in the knob cavity, and the valve rod 2 is fixedly connected with the knob 5 through a positioning pin 6.
The structure and the connection relationship explain the specific structure of the valve core-rod assembly, the specific connection structure of the valve core-rod assembly and the valve body 1 and the action principle, wherein the valve rod 2 is embedded into the first matching cavity 103 along the axial direction of the first matching cavity 103, the valve core 3 is fixedly connected at the valve core assembling end 201, the valve core 3 is in threaded connection with the first matching cavity 103, the knob 5 is installed at the other end of the valve rod 2, the knob 5 is manually rotated by an operator through the valve rod 2 to rotate the valve core 3, for example, the valve core 3 is driven to move outwards by rotating against a pointer, so as to open the gas path, and gas is enabled to sequentially flow through the gas inlet 101, the second matching cavity 104, the first matching cavity 103 and the gas outlet 102 until being discharged; on the contrary, the clockwise rotation drives the valve core 3 to move inwards until the valve core 3 abuts against the end part of the first matching cavity 103, and the sealing gasket 302 embedded in the valve core 3 and the valve core 3 body are utilized to seal the air passage, so that the communication between the first matching cavity 103 and the second matching cavity 104 is cut off.
Preferably, in the present embodiment, the sectional dimension of the valve element assembling end 201 is larger than the sectional dimension of the valve rod 2, and an annular gasket 204 is installed at the transition position of the valve element assembling end 201 and the valve rod 2, and the annular gasket 204 is in contact with the inner wall of the first matching cavity 103;
the valve core assembling end 201 is provided with a slot 203, and an inserting block 301 protrudes from one end of the valve core 3 matched with the valve core assembling end 201;
the valve core 3 and the valve core assembling end 201 form a fixed connection structure through the insertion and fixation of the insertion block 301 and the insertion groove 203.
Wherein, the second matching cavity 104 is internally threaded with a rupture disk 7.
Wherein, the valve body 1 is also provided with a third matching cavity 105;
a pressure gauge 8 is installed in the third fitting cavity 105.
In the technical scheme, the low-pressure bottle mouth valve provided by the utility model has the following beneficial effects:
the bottle mouth valve is provided with the valve core and valve rod assembly, the rupture disk 7 and the pressure gauge 8 through matching cavities at different positions, and meanwhile, the air inlet 101, the second matching cavity 104, the first matching cavity 103 and the air outlet 102 which are sequentially communicated are designed in the bottle mouth valve.
The bottle mouth valve is provided with three sealing structures of a sealing ring 205, a sealing gasket 302 and an annular sealing gasket 204 at different positions of the valve rod 2 and the valve core 3, and the sealing effect of the corresponding positions of the valve rod 2 and the valve core 3 can be ensured from different positions.
According to the bottle mouth valve, the pressure gauge 8 is arranged on the valve body 1, the internal air pressure is monitored in real time through the pressure gauge 8, and meanwhile, the rupture disk 7 is utilized to avoid overpressure, so that the safety is guaranteed.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.
Claims (10)
1. A low pressure finish valve, comprising:
the gas cylinder comprises a valve body (1), wherein a gas inlet (101) communicated with a gas outlet end of an external gas cylinder and a gas outlet (102) formed on one side opposite to the valve body (1) are formed in the valve body (1);
the valve core and valve rod assembly is integrated on one side of the valve body (1);
the valve core and valve rod component is partially embedded in the valve body (1), and the valve core and valve rod component partially extends to the outside of the valve body (1);
a knob (5) is arranged on the part of the valve core and valve rod assembly extending to the outside of the valve body (1);
the valve core and valve rod assembly is in threaded connection with the inside of the valve body (1);
the knob (5) can drive the valve core and valve rod assembly to rotate so as to adjust the relative position of the valve core and valve rod assembly and the valve body (1);
the part of the valve core and valve rod component embedded in the valve body (1) is provided with a plurality of sealing structures.
2. A low-pressure neck finish valve according to claim 1, wherein a mating cavity is formed inside the valve body (1);
the matching cavity is divided into a first matching cavity (103) located on the right side of the valve body (1) and a second matching cavity (104) located on the left side of the valve body (1);
the gas inlet (101) is partially communicated with the second matching cavity (104), the second matching cavity (104) is partially communicated with the first matching cavity (103), and the first matching cavity (103) is partially communicated with the gas outlet (102) to form a gas channel.
3. A low pressure port valve according to claim 2, wherein the spool valve stem assembly is configured to be moved towards the outside of the valve body (1) by the drive of the knob (5) to open the passage between the second mating chamber (104) and the first mating chamber (103); and
a structure which is driven by the knob (5) to move towards the interior of the valve body (1) so as to close the passage between the second matching cavity (104) and the first matching cavity (103).
4. The low pressure neck valve of claim 3, wherein the poppet stem assembly comprises:
a valve rod (2), wherein one end of the valve rod (2) is configured to be a valve core assembling end (201), and the other end of the valve rod (2) is configured to be a knob installing end (202);
a valve core (3) mounted on the valve core assembly end (201) of the valve rod (2);
the valve core (3) is fixedly connected with the valve core assembling end (201), and the valve core (3) is in threaded connection with the first matching cavity (103) of the valve body (1);
the knob (5) is fixedly connected to the knob mounting end (202), and the knob (5) drives the valve core (3) to rotate through the valve rod (2) so as to be connected with the valve body (1) through the valve core (3) in a threaded manner and move along the axial direction of the first matching cavity (103);
the part of the valve rod (2) extending into the first matching cavity (103) is sequentially sleeved with an annular sealing gasket (204) and a sealing ring (205);
one side of the valve core (3) close to the second matching cavity (104) is provided with a valve core groove, and a sealing gasket (302) is embedded in the valve core groove;
the annular sealing gasket (204), the sealing ring (205) and the sealing gasket (302) are all the sealing structures.
5. A low-pressure bottle mouth valve as claimed in claim 4, characterized in that a pressing cap (4) is embedded in one end of the first matching cavity (103) facing the knob (5);
the press cap (4) is provided with a first press cap body (401) which can be embedded into the first matching cavity (103) and a second press cap body (402) which is arranged outside the first matching cavity (103);
the valve rod (2) penetrates through the pressing cap (4) along the axial direction of the pressing cap (4);
a left pressing cap cavity (404) is formed inside the first pressing cap body (401), and a right pressing cap cavity (405) is formed inside the second pressing cap body (402);
the sealing ring (205) is embedded in the left pressing cap cavity (404);
a pressure spring (403) is sleeved outside the part of the valve rod (2) positioned in the right chamber (405) of the pressure cap;
one end of the pressure spring (403) is in contact with the inner wall of the pressure cap right chamber (405), and the other end of the pressure spring extends to the knob (5) and is in contact with the knob (5).
6. A low-pressure bottle mouth valve as claimed in claim 5, characterized in that a knob cavity is formed on the side of the knob (5) facing the valve body (1), the second body (402) of the press cap is placed in the knob cavity, and the valve rod (2) is fixedly connected with the knob (5) through a positioning pin (6).
7. The low-pressure bottle mouth valve is characterized in that the sectional dimension of the valve core assembling end (201) is larger than that of the valve rod (2), the annular sealing gasket (204) is installed at the transition position of the valve core assembling end (201) and the valve rod (2), and the annular sealing gasket (204) is in contact with the inner wall of the first matching cavity (103);
a slot is formed at the valve core assembling end (201), and an inserting block (301) is protruded at one end of the valve core (3) matched with the valve core assembling end (201);
the valve core (3) and the valve core assembling end (201) form a fixed connection structure through the insertion and fixation of the insertion block (301) and the insertion groove (203).
8. A low pressure port valve according to claim 2, wherein a rupture disc (7) is threadedly connected to the second mating chamber (104).
9. The low-pressure bottle mouth valve as claimed in claim 8, wherein the valve body (1) is further provided with a third matching cavity (105);
and a pressure gauge (8) is arranged in the third matching cavity (105).
10. The low pressure neck valve of claim 9, wherein the pressure of the neck valve is in the range of 0 to 10 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121403211.1U CN215807879U (en) | 2021-06-23 | 2021-06-23 | Low-pressure bottle mouth valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121403211.1U CN215807879U (en) | 2021-06-23 | 2021-06-23 | Low-pressure bottle mouth valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215807879U true CN215807879U (en) | 2022-02-11 |
Family
ID=80178184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121403211.1U Active CN215807879U (en) | 2021-06-23 | 2021-06-23 | Low-pressure bottle mouth valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215807879U (en) |
-
2021
- 2021-06-23 CN CN202121403211.1U patent/CN215807879U/en active Active
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