CN214618291U - Liquefied petroleum gas cylinder valve - Google Patents
Liquefied petroleum gas cylinder valve Download PDFInfo
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- CN214618291U CN214618291U CN202022184754.0U CN202022184754U CN214618291U CN 214618291 U CN214618291 U CN 214618291U CN 202022184754 U CN202022184754 U CN 202022184754U CN 214618291 U CN214618291 U CN 214618291U
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- gas cylinder
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Abstract
The utility model relates to the technical field of cylinder valves, a liquefied petroleum gas cylinder valve is disclosed, including valve body (1) and takeover (2) of being connected with gas cylinder (10), takeover (2) are located valve body (1) lower part and with valve body (1) integrated into one piece, takeover (2) are equipped with external screw thread (201) that matches with gas cylinder (10) bottleneck, still include screwing up and detain (3), screwing up and detaining (3) and being equipped with internal thread (301) that matches with external screw thread (201) of takeover (2), screwing up and detaining (3) and being hexagonal prism shape or cylindrical, screwing up and detaining (3) cavity and cover and locating on takeover (2); the liquefied petroleum gas cylinder valve is provided with the screwing buckle, when the connecting pipe and the gas cylinder are connected to the outlet of the cylinder valve through threads and are opposite to the opening of the protective cover, the screwing buckle is connected with the connecting pipe through threads and rotates towards the gas cylinder to fix the valve body, and the liquefied petroleum gas cylinder valve is simple in structure and simple and convenient to operate.
Description
Technical Field
The utility model relates to a cylinder valve technical field, concretely relates to liquefied petroleum gas cylinder valve.
Background
The liquefied petroleum gas is produced by cracking hydrocarbon to ethylene or transforming steam to synthetic gas, and can be used as fuel for industrial, civil and internal combustion engines. The liquefied petroleum gas is a combustible substance, when the content in the air reaches a certain concentration range, the liquefied petroleum gas can be exploded by naked fire, and the liquefied petroleum gas for domestic use of residents mainly has two modes of pipeline transportation and bottle supply, and its cylinder valve is a main safety component of liquefied petroleum gas cylinder.
The existing cylinder valve is connected with a liquefied petroleum gas cylinder through threads, a protective cover is arranged at the top of the liquefied petroleum gas cylinder, one side of the protective cover is provided with an opening, and the outlet of the cylinder valve is opposite to the opening of the protective cover. For example, the chinese utility model with the authority bulletin number CN2567407 discloses a valve for inhibiting a liquefied petroleum gas steel cylinder, which mainly comprises a valve body, a valve cover, an air port connected with the steel cylinder, a connector connected with a pressure regulator, a valve rod, a valve clack and a hand wheel; however, when the cylinder valve is manually screwed to the gas cylinder, if the external thread of the cylinder valve is not completely matched with the internal thread of the gas cylinder, the outlet of the cylinder valve cannot be opposite to the opening of the protective cover, and when the gas transmission pipeline is butted with the cylinder valve, the operation is inconvenient, and the gas transmission pipeline is bent, so that gas leakage is easily caused.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a liquefied petroleum gas cylinder valve, this liquefied petroleum gas cylinder valve set up and fasten soon, when takeover and gas cylinder threaded connection to cylinder valve export just when the guard shield opening, fasten soon and take over threaded connection and to the gas cylinder rotating to fixed valve body, simple structure, it is also simple and convenient to operate.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a liquefied petroleum gas cylinder valve, includes the valve body and the takeover of being connected with the gas cylinder, take over and locate the valve body lower part and with valve body integrated into one piece, take over and be equipped with the external screw thread that matches with the gas cylinder bottleneck, still including screwing tightly detain, it is equipped with the internal thread that matches with the external screw thread of takeover to screw tightly detain to solve current cylinder valve when with liquefied petroleum gas cylinder threaded connection, the screw thread of cylinder valve and gas cylinder screw thread are incompletely matted and make the condition that the cylinder valve export can not just be to the guard shield opening part.
Preferably, the connecting pipe is provided with a tool withdrawal groove which is arranged at the upper end of the external thread, the screwing buckle is a screwing nut or two screwing nuts which are oppositely arranged, and when the screwing buckle is a screwing nut, the upper end face of the screwing nut is higher than the upper end face of the external thread by at least half of a thread pitch in a screwing state; when the screwing buckle is two screwing nuts which are oppositely arranged, the thread directions of the two screwing nuts are opposite, and the screwing nuts are sequentially screwed on the connecting pipe.
Preferably, the screwing buckle is hexagonal prism shaped or cylindrical, is hollow and is sleeved on the connecting pipe. When the connecting pipe and the gas cylinder are connected to the outlet of the cylinder valve through threads and are opposite to the opening of the protective cover, the screwing buckle can be rotated manually or matched with a wrench, so that the screwing buckle is connected with the connecting pipe through threads and presses the connecting pipe to the gas cylinder.
Preferably, the side wall of the cylindrical screwing buckle is provided with two oppositely arranged notches, the notch surfaces of the two notches are parallel, and the cylindrical screwing buckle can be matched with a spanner when being rotated, so that the cylindrical screwing buckle can be better rotated to ensure that the outlet of the cylinder valve is just opposite to the opening of the protective cover.
As the preferred, cylindrical knot bottom of screwing is equipped with annular boss, and annular boss's lateral wall is equipped with the incision of two relative settings, and two notched incision faces are parallel, and the setting of annular boss can increase the area of contact of knot and gas cylinder of screwing, and the cooperation sealing washer, sealed effect is better.
Preferably, the screwing buckle is provided with an annular groove on one side facing the gas cylinder for installing the sealing ring.
Preferably, the material of the screwing buckle is copper or stainless steel.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a liquefied petroleum gas cylinder valve sets up and fastens soon, just when the guard shield opening is being gone out to the bottle valve to takeover and gas cylinder threaded connection, fastens soon and fastens and take over threaded connection and to the gas cylinder rotating to the fixed valve body, simple structure, it is also simple and convenient to operate.
Drawings
Fig. 1 is a schematic structural view of an lpg cylinder valve in examples 1 to 3.
Fig. 2 is a front view of the lpg cylinder valve according to embodiments 1 to 3.
Fig. 3 is a partial sectional view of the lpg cylinder valve according to examples 1 to 3.
Fig. 4 is a schematic structural view of the screw buckle in embodiment 1.
Fig. 5 is a schematic structural view of the screw buckle in embodiment 2.
Fig. 6 is a schematic structural view of the screw fastener in embodiment 3.
Fig. 7 is a schematic structural view of an lpg cylinder valve in example 4.
In the drawings: 1-valve body, 2-connecting pipe, 201-external thread, 202-tool withdrawal groove, 3-screwing buckle, 31-annular boss, 32-annular groove, 301-internal thread, 302-notch and 10-gas cylinder.
Detailed Description
Example 1: the utility model provides a preferred embodiment provides a liquefied petroleum gas cylinder valve, including valve body 1 and the takeover 2 of being connected with gas cylinder 10, takeover 2 locate valve body 1 lower part and with valve body 1 integrated into one piece, takeover 2 is equipped with the external screw thread 201 that matches with the gas cylinder 10 bottleneck. The valve body 1 is consistent with the internal structure of the existing liquefied petroleum gas cylinder valve, and if a valve rod, a valve seat ejector rod assembly, an elastic rod pressure spring, a tail rod, a hand wheel and the like are arranged in the valve body 1, the internal structure of the valve body 1 is not described in detail here. The problem that when the existing cylinder valve is in threaded connection with a liquefied petroleum gas cylinder, the threads of the cylinder valve and the threads of the gas cylinder are not completely matched, so that the outlet of the cylinder valve cannot be opposite to the opening of the protective cover is solved. The liquefied petroleum gas cylinder valve of the embodiment further comprises a screwing buckle 3, and the screwing buckle 3 is provided with an internal thread 301 matched with the external thread 201 of the connecting pipe 2.
The connecting pipe 2 is provided with a tool withdrawal groove 202, the tool withdrawal groove 202 is arranged at the upper end of the external thread 201, the screwing buckle 3 is a screwing nut, and the upper end face of the screwing nut is higher than the upper end face of the external thread by at least half pitch in the screwing state so as to ensure that the depth of the sealing part at the bottom of the valve body 1 extending into the gas cylinder 10 is matched with the gas cylinder 10.
The screwing buckle 3 is made of copper or stainless steel, preferably copper; the screwing buckle 3 is in a hexagonal prism shape, and the screwing buckle 3 is hollow and sleeved on the connecting pipe 2.
When the gas cylinder is used, the connecting pipe 2 and the gas cylinder 10 are in threaded connection with the outlet of the cylinder valve 1 and are opposite to the opening of the protective cover, the screwing buckle 3 can be rotated manually or matched with a wrench, so that the screwing buckle 3 is in threaded connection with the connecting pipe 2 and presses the gas cylinder 10.
Furthermore, an annular groove 32 is formed in one side of the screwing buckle 3 facing the gas cylinder 10 and used for installing a sealing ring, and the sealing ring is an O-shaped sealing ring.
Example 2: the utility model provides a preferred embodiment provides a liquefied petroleum gas cylinder valve, its difference with above-mentioned embodiment only lies in: the screwing buckle 3 is cylindrical, and the screwing buckle 3 is hollow and is sleeved on the connecting pipe 2.
The side wall of the cylindrical screwing buckle 3 is provided with two oppositely arranged notches 302, the notch surfaces of the two notches 302 are parallel, and the arrangement is that a spanner can be matched when the screwing buckle 3 is rotated, the screwing buckle 3 is better rotated, and the outlet of the cylinder valve 1 is opposite to the opening of the protective cover. Further, the screwing buckle 3 is provided with an annular groove 32 facing one side of the gas cylinder 10 for installing a sealing ring, and the sealing ring is selected to be a combination of an O-shaped sealing ring and a sealing gasket, so that the sealing effect is ensured.
Example 3: the utility model provides a preferred embodiment provides a liquefied petroleum gas cylinder valve, its difference with above-mentioned embodiment only lies in: it is cylindrical to fasten 3, and cylindrical 3 bottoms of screwing are equipped with annular boss 31, and the lateral wall of annular boss 31 is equipped with the incision 302 of two relative settings, and the incision face of two incisions 302 is parallel. The setting of annular boss 31 can increase the area of contact who fastens 3 and gas cylinder 10 soon, and the cooperation is screwed the annular boss 31 of fastening 3 bottoms and is equipped with ring channel 32 towards gas cylinder 10 one side for the installation sealing washer, the sealing washer including install in ring channel 32 the bellying and with bellying integrated into one piece's annular packing pad, annular packing pad locates between annular boss 31 and gas cylinder 10 and fills up, sealed effect is better.
Example 4: the utility model provides a preferred embodiment provides a liquefied petroleum gas cylinder valve, its difference with above-mentioned embodiment only lies in: the screwing buckle 3 is two screwing nuts which are oppositely arranged, the thread directions of the two screwing nuts are opposite, and the two screwing nuts are sequentially screwed on the connecting pipe 2; and the lower nut for screwing is provided with an annular groove 32 on the side facing the gas cylinder 10 for mounting a sealing ring. During the use, in order to guarantee that the outlet of the cylinder valve 1 is just opposite to the opening of the protective cover and guarantee that the depth of the sealing part at the bottom of the valve body 1 extending into the gas cylinder 10 is matched with the gas cylinder 10, the positions of two screwed nuts can be adjusted, the screwed nut positioned above is abutted against the screwed nut positioned below, and the sealing effect is better.
Claims (8)
1. The utility model provides a liquefied petroleum gas cylinder valve, includes valve body (1) and takes over (2) of being connected with gas cylinder (10), takes over (2) and locates valve body (1) lower part and with valve body (1) integrated into one piece, takes over (2) and is equipped with external screw thread (201) that match with gas cylinder (10) bottleneck, its characterized in that still including screwing tightly detain (3), screws tightly detain (3) and is equipped with internal thread (301) that match with external screw thread (201) of taking over (2).
2. The valve for liquefied petroleum gas cylinder according to claim 1, wherein the adapter tube (2) is provided with a relief groove (202), and the relief groove (202) is provided at an upper end of the external thread (201).
3. The lpg cylinder valve as set forth in claim 2, wherein the tightening buckle (3) is a tightening nut or two tightening nuts disposed opposite to each other, and when the tightening buckle (3) is a tightening nut, an upper end surface of the tightening nut is higher than an upper end surface of the external thread by at least half a pitch in a tightened state; when the screwing buckle (3) is two screwing nuts which are oppositely arranged, the two screwing nuts have opposite thread directions and are sequentially screwed on the connecting pipe (2).
4. The LPG cylinder valve of claim 3, wherein the tightening buckle (3) is hexagonal prism shaped or cylindrical, and the tightening buckle (3) is hollow and sleeved on the connecting pipe (2).
5. A valve as claimed in claim 4, characterized in that the side wall of the cylindrical screw (3) is provided with two oppositely arranged notches (302), the notch surfaces of the two notches (302) being parallel.
6. The LPG cylinder valve of claim 4, wherein the bottom end of the cylindrical screwing buckle (3) is provided with an annular boss (31), the side wall of the annular boss (31) is provided with two oppositely arranged notches (302), and the notch surfaces of the two notches (302) are parallel.
7. A valve as claimed in any one of claims 1 to 6, characterised in that the side of the turnbuckle (3) facing the cylinder (10) is provided with an annular groove (32) for the mounting of a sealing ring.
8. The LPG cylinder valve of claim 7, wherein the tightening buckle (3) is made of copper or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022184754.0U CN214618291U (en) | 2020-09-29 | 2020-09-29 | Liquefied petroleum gas cylinder valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022184754.0U CN214618291U (en) | 2020-09-29 | 2020-09-29 | Liquefied petroleum gas cylinder valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214618291U true CN214618291U (en) | 2021-11-05 |
Family
ID=78375117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022184754.0U Active CN214618291U (en) | 2020-09-29 | 2020-09-29 | Liquefied petroleum gas cylinder valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214618291U (en) |
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2020
- 2020-09-29 CN CN202022184754.0U patent/CN214618291U/en active Active
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