CN215597041U - Internal expansion sealing valve for steel cylinder - Google Patents
Internal expansion sealing valve for steel cylinder Download PDFInfo
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- CN215597041U CN215597041U CN202120536655.6U CN202120536655U CN215597041U CN 215597041 U CN215597041 U CN 215597041U CN 202120536655 U CN202120536655 U CN 202120536655U CN 215597041 U CN215597041 U CN 215597041U
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Abstract
The utility model discloses an expansion sealing valve in a steel cylinder, which comprises: the outer valve assembly comprises an outer valve body, an inner channel and a first elastic piece, the inner channel is axially arranged along the outer valve body, one end of the outer valve body is provided with an outlet communicated with the inner channel, the periphery of the other end of the outer valve body is provided with an inlet communicated with the inner channel, the inner valve assembly is arranged in the inner valve assembly in the inner channel, and the shell assembly is sleeved outside the outer valve assembly; the auxetic tube assembly is clamped between the shell assembly and the outer valve assembly; prevent tearing open the subassembly and be used for locking the auxetic tube subassembly, shell subassembly is sealed through interior inflation subassembly with the bottom of auxetic tube subassembly, and the sealed valve of inflation adopts interior inflation subassembly to seal in this steel bottle, and sealing performance is stronger more stable, can not injure gas cylinder itself, and the combination is more firm, and safe and reliable more adopts nested valve, and is safer.
Description
Technical Field
The utility model relates to the technical field of valve equipment, in particular to an expansion sealing valve in a steel cylinder.
Background
The steel cylinders are used as storage equipment of gases such as nitrogen, coal gas, liquefied petroleum gas and the like, the application field is wide, a large number of steel cylinders are circulated and used in the market every day, and the steel cylinders are distributed in industry, commerce and residents. The steel cylinder is a special device of a pressure container, has strict safety management requirements, has strict requirements on a valve of the steel cylinder, particularly has strict sealing requirements, and can endanger the personal safety and property safety of a user once the leakage result is serious. At present, the straight valve and the angle valve which are mainly threaded are adopted, the valve body is made of copper, under the condition that the thread combination of a steel cylinder and the valve is very good, the ductility of the copper is utilized, and the thread screwing can play a sealing role, but the actual effect is poor, and a layer of raw adhesive tape is added in the common method in actual use.
At present, the installation of the valve with the thread structure on the steel cylinder mainly has the following defects: 1. the thread structure is easy to damage in the dismounting process, and the main body structure is damaged, so that the sealing effect is poor; 2. the sealing degree depends on the matching precision of the threads, the precision is poor, and the sealing performance is poor; 3. the raw rubber belt is used for filling and sealing, so that the rubber belt is easy to loosen after a long time and cannot resist high temperature; 4. at present, the structure is not provided with anti-dismantling and anti-error dismantling, and the maintenance hidden trouble of non-professional persons is huge.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve at least one technical problem in the prior art and provides an expansion sealing valve in a steel cylinder.
According to a first aspect of the present invention, there is provided an in-cylinder expansion sealing valve, comprising: the outer valve assembly comprises an outer valve body, an inner passage and a first elastic piece, the inner passage is axially arranged along the outer valve body, one end of the outer valve body is provided with an outlet communicated with the inner passage, the other end of the outer valve body is circumferentially provided with an inlet communicated with the inner passage, and the first elastic piece is used for providing elasticity for the outer valve assembly; the inner valve assembly is arranged in the inner valve assembly in the inner channel and comprises a shell, a second elastic part and an ejector rod, a cavity is formed in the shell, the ejector rod is arranged along the axial direction of the shell and used for opening and closing the inner valve assembly, and the second elastic part is used for providing elastic force for closing and opening the inner valve assembly; the shell component is sleeved outside the outer valve component; an auxetic tube assembly sandwiched between the housing assembly and the outer valve assembly; the anti-disassembly assembly is used for locking the auxetic tube assembly, and the shell assembly and the bottom of the auxetic tube assembly are sealed through the inner expansion assembly.
Has the advantages that: the steel cylinder internal expansion sealing valve comprises: the outer valve assembly comprises an outer valve body, an inner channel and a first elastic piece, the inner channel is axially arranged along the outer valve body, one end of the outer valve body is provided with an outlet communicated with the inner channel, the periphery of the other end of the outer valve body is provided with an inlet communicated with the inner channel, and the first elastic piece is used for providing elasticity for the outer valve assembly; the inner valve assembly is arranged in the inner valve assembly in the inner channel and comprises a shell, a second elastic piece and an ejector rod, a cavity is formed in the shell, the ejector rod is arranged along the axial direction of the shell and used for opening and closing the inner valve assembly, and the second elastic piece is used for providing elastic force for closing and opening the inner valve assembly; the shell component is sleeved outside the outer valve component; the auxetic tube assembly is clamped between the shell assembly and the outer valve assembly; prevent tearing open the subassembly and be used for locking the auxetic tube subassembly, shell subassembly is sealed through interior inflation subassembly with the bottom of auxetic tube subassembly, and the sealed valve of inflation adopts interior inflation subassembly to seal in this steel bottle, and sealing performance is stronger more stable, can not injure gas cylinder itself, and the combination is more firm, and safe and reliable more adopts nested valve, and is safer.
According to the in-cylinder expansion sealing valve disclosed by the embodiment of the first aspect of the utility model, the first elastic element is a spring, one end of the spring is connected with the top of the outer valve body, and the other end of the spring is connected with the top of the auxetic tube assembly.
According to the in-cylinder expansion sealing valve provided by the embodiment of the first aspect of the utility model, the ejector rod comprises a guide rod and a probe, the probe is located at the top of the shell, the guide rod penetrates through the bottom of the shell, and the second elastic piece is sleeved on the guide rod.
According to the in-cylinder expansion sealing valve disclosed by the embodiment of the first aspect of the utility model, the bottom of the shell is provided with a porous filter plate, and the porous filter plate forms an internal inlet and an internal outlet of the internal valve assembly.
According to the steel cylinder internal expansion sealing valve disclosed by the embodiment of the first aspect of the utility model, the anti-dismantling component is an anti-dismantling screw, the anti-dismantling screw comprises a thread main body and a buckle, the thread main body is provided with an internal thread, the top of the auxetic tube component is provided with an external thread, and the internal thread of the thread main body is in threaded connection with the external thread.
According to the steel cylinder internal expansion sealing valve disclosed by the embodiment of the first aspect of the utility model, the expansion pipe assembly comprises a pipe body and a base, the base is arranged at the bottom of the pipe body and is arranged in a conical shape, the external thread is arranged at the top of the pipe body, and the base and the bottom of the shell assembly are sealed through the internal expansion assembly.
The in-cylinder expansion seal valve according to the embodiment of the first aspect of the utility model further comprises a gasket assembly disposed between the housing assembly and the tamper assembly, the gasket assembly including a first gasket and a spring gasket.
According to the steel cylinder internal expansion sealing valve provided by the embodiment of the first aspect of the utility model, the housing assembly comprises a first cylinder and a second cylinder which are connected up and down, the diameter of the first cylinder is larger than that of the second cylinder, a fixing clamp is arranged on the inner wall of the first cylinder, and the first cylinder is further provided with a transverse clamping groove and a vertical limiting clamping groove.
According to the in-cylinder expansion sealing valve in the embodiment of the first aspect of the utility model, the inner expansion assembly is tubular, the outer diameter of the inner expansion assembly is the same, and the inner diameter of the upper part of the inner expansion assembly is larger than the inner diameter of the lower part of the inner expansion assembly.
According to the in-cylinder expansion sealing valve in the embodiment of the first aspect of the utility model, the internal expansion assembly is a sealing gasket.
Drawings
The utility model is further described below with reference to the accompanying drawings and examples;
FIG. 1 is a schematic view of the overall structure of an expansion sealing valve in a steel cylinder according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of the valve assembly of the present invention;
FIG. 3 is a schematic illustration of an internal valve assembly according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a tamper assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a gasket assembly according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an outer shell assembly according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of an auxetic tube assembly according to an embodiment of the present invention;
fig. 8 is a schematic view of an inner expansion assembly according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 8, an in-cylinder expansion sealing valve includes: the outer valve assembly 100, the inner valve assembly 200, the housing assembly 300, the auxetic tube assembly 400, the tamper assembly 500 and the inner expansion assembly 600 comprise an outer valve body 110, an inner passage 120 and a first elastic member 130, wherein the inner passage 120 and the first elastic member 130 are axially arranged along the outer valve body 110, one end of the outer valve body 110 is provided with an outlet 140 communicated with the inner passage 120, the other end of the outer valve body 110 is circumferentially provided with an inlet 150 communicated with the inner passage 120, the first elastic member 130 is used for providing elastic force for the outer valve assembly 100, the inner valve assembly 200 is arranged in the inner valve assembly 200 in the inner passage 120, the inner valve assembly 200 comprises a shell 210, a second elastic member 220 and a push rod 230, the shell 210 is formed with a cavity, the push rod 230 is axially arranged along the shell 210, the push rod 230 is used for opening and closing the inner valve assembly 200, the second elastic member 220 is used for providing elastic force for closing and opening the inner valve assembly 200, the housing assembly 300 is sleeved outside the outer valve assembly 100, the auxetic tube assembly 400 is clamped between the housing assembly 300 and the outer valve assembly 100, the anti-disassembly assembly 500 is used for locking the auxetic tube assembly 400, the housing assembly 300 and the bottom of the auxetic tube assembly 400 are sealed through the inner expansion assembly 600, and the double-self-closing valve is designed to be safer. The use of stainless steel materials can be used at the positions which are not required by sealing, and the existing valve adopts all-copper materials, so that the valve is more economical, safer and firmer.
Easily understand the ground, interior inflation subassembly 600 adopts interior inflation principle, seals shell subassembly 300 and auxetic tube subassembly 400, and sealing performance is stronger more stable, has abolished traditional helicitic texture, adopts the internal expansion fixed, eliminates the gas cylinder that the smooth silk of screw lead to and scrapps, and interior inflation subassembly 600 adopts the copper material preparation, can be high temperature resistant more. Wherein, interior inflation subassembly 600 external diameter is the same from top to bottom, and the internal diameter is last little, and is slightly big down, is the horn mouth form, and the inflation of being convenient for is sealed, mainly has two effects, and one is down extended under the effect of pressure, plays the fixed action, and the second plays sealed effect with adapting unit in close contact with under the pressure, and the texture can be chooseed for use to seal gasket's selection material and is soft slightly having malleable material, like copper, graphite sealing gasket, carbon fiber sealing gasket.
Referring to fig. 2, in particular, the first elastic member 130 is a spring, one end of which is connected to the top of the outer valve body 110, and the other end of which is connected to the top of the auxetic tube assembly 400. Wherein, the outer valve body 110 of the outer valve assembly 100 further comprises an outlet end at the top end, the outlet end is provided with an outlet 140, the diameter of the outlet end is larger than that of the outer valve body 110, the bottom end of the outer valve body 110 is provided with a base, the base seals the bottom of the outer valve body 110, and a circular sealing ring is arranged at the base and the outer valve body 110.
Referring to fig. 3, the top bar 230 includes a guide rod 231 and a probe 232, the probe 232 is located at the top of the housing 210, the guide rod 231 penetrates through the bottom of the housing 210, and the second elastic member 220 is sleeved on the guide rod 231. The overall shape of the ram 230 is an obtuse arrow, the probe 232 has an external access with the top of the housing 210, and the ram 231 moves downward and opens the access, and vice versa closes the access. The probe 232 is circular, and a circular sealing ring is mounted and fixed on the probe 232. The second elastic member 220 is a spring providing an elastic force for closing and opening the valve, and the spring is mounted on the guide rod 231. The bottom of the housing 210 is provided with a porous filter sheet 211, the porous filter sheet 211 forms an internal inlet and outlet of the internal valve assembly 200, and the porous filter sheet 211 has a simple filtering function.
Referring to fig. 4, for preventing tearing open the screw, prevent tearing open the screw and include screw main part 510 and buckle 520, screw main part 510 is provided with the internal thread, auxetic pipe subassembly 400 top is provided with the external screw thread, the internal thread and the external screw thread threaded connection of screw main part 510, it needs professional instrument just can install and dismantle to demolish the screw, buckle 520 can regard as the locking draw-in groove simultaneously, prevent to slide, through preventing tearing open screw and buckle, it is never not hard up, and is safe and reliable more, and adopt the design of special nut, the theftproof is prevented the mistake and is opened, it just can open to need professional instrument.
Referring to fig. 7, the auxetic tube assembly 400 includes a tube 410 and a base 420, the base 420 is disposed at the bottom of the tube 410, the base 420 is tapered, external threads are disposed at the top of the tube 410, and the base 420 is sealed with the bottom of the outer housing assembly 300 by an inner expansion assembly 600. The overall appearance of the auxetic tube assembly 400 is in a horn shape with a small upper part and a large lower part, the inner diameter of the inner cavity of the auxetic tube assembly 400 is the same as the upper part and the lower part, and the upper part of the auxetic tube assembly 400 is provided with an external thread which is in threaded connection with the internal thread of the thread main body 510.
Referring to fig. 5, in some embodiments, a shim assembly 700 is further included, shim assembly 700 being disposed between housing assembly 300 and tamper assembly 500, shim assembly 700 including a first shim 710 and a spring shim 720. The first gasket 710 may be a general gasket. Of course, the conventional gasket may be replaced with a sealing gasket, such as a copper sealing gasket, a graphite sealing gasket, a carbon fiber sealing gasket, or the like.
Referring to fig. 6, the housing assembly 300 includes a first cylinder 310 and a second cylinder 320 connected up and down, the first cylinder 310 has a diameter larger than that of the second cylinder 320, a fixing clip 311 is disposed on an inner wall of the first cylinder 310, the fixing clip 311 is mainly used for fixing, preventing from slipping and rotating, and the first cylinder 310 is further provided with a transverse slot 312 and a vertical limiting slot 313 for connecting a combination lock.
Referring to fig. 8, in some embodiments, the inner expansion assembly 600 is tubular, the outer diameter of the inner expansion assembly 600 is the same, the inner diameter of the upper part of the inner expansion assembly 600 is larger than that of the lower part, the inner diameter is smaller at the upper part and slightly larger at the lower part, and is in a bell mouth shape, so that the inner expansion assembly is convenient to expand and seal, two functions are mainly performed, one is expanded under the pressure effect to play a fixing role, the second is tightly contacted with the connecting part under the pressure effect to play a sealing role, a material with soft texture and eye lines can be selected, the inner expansion is adopted to replace the traditional threaded connection, the inner expansion assembly is more stable and reliable than threads, and the gas cylinder can not be damaged. It is understood that the inner expansion assembly 600 is a sealing gasket, and the inner expansion assembly 600 has better sealing performance, more stable sealing performance and high temperature resistance.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. An expansion sealing valve in a steel cylinder is characterized by comprising:
the outer valve assembly comprises an outer valve body, an inner channel and a first elastic piece, wherein the inner channel is axially arranged along the outer valve body, one end of the outer valve body is provided with an outlet communicated with the inner channel, the periphery of the other end of the outer valve body is provided with an inlet communicated with the inner channel, and the first elastic piece is used for providing elasticity for the outer valve assembly;
the inner valve assembly is arranged in the inner valve assembly in the inner channel and comprises a shell, a second elastic part and an ejector rod, a cavity is formed in the shell, the ejector rod is arranged along the axial direction of the shell and used for opening and closing the inner valve assembly, and the second elastic part is used for providing elastic force for closing and opening the inner valve assembly;
the shell component is sleeved outside the outer valve component;
an auxetic tube assembly sandwiched between the housing assembly and the outer valve assembly;
a tamper assembly for locking the auxetic tube assembly; and
an inner expansion assembly by which the housing assembly is sealed from a bottom of the auxetic tube assembly.
2. The in-cylinder expansion-seal valve of claim 1, wherein: the first elastic piece is a spring, one end of the spring is connected with the top of the outer valve body, and the other end of the spring is connected with the top of the expansion pipe assembly.
3. The in-cylinder expansion-seal valve of claim 1, wherein: the ejector rod comprises a guide rod and a probe, the probe is located at the top of the shell, the guide rod penetrates through the bottom of the shell, and the second elastic piece is sleeved on the guide rod.
4. The in-cylinder expansion-seal valve of claim 1, wherein: the bottom of the shell is provided with a porous filter plate, and the porous filter plate forms an internal inlet and an internal outlet of the internal valve component.
5. The in-cylinder expansion-seal valve of claim 1, wherein: the anti-disassembly component is an anti-disassembly screw, the anti-disassembly screw comprises a thread main body and a buckle, the thread main body is provided with an internal thread, the top of the auxetic tube component is provided with an external thread, and the internal thread of the thread main body is in threaded connection with the external thread.
6. The in-cylinder expansion-sealing valve of claim 5, wherein: the base sets up body bottom, just the base is the taper setting, the external screw thread sets up the body top, the base with shell subassembly bottom is through interior inflation subassembly is sealed.
7. The in-cylinder expansion-seal valve of claim 1, wherein: still include the gasket subassembly, the gasket subassembly sets up between shell subassembly and prevent tearing open the subassembly, the gasket subassembly includes first gasket and spring gasket.
8. The in-cylinder expansion-seal valve of claim 1, wherein: the shell component comprises a first cylinder and a second cylinder which are connected up and down, the diameter of the first cylinder is larger than that of the second cylinder, a fixing clamp is arranged on the inner wall of the first cylinder, and a transverse clamping groove and a vertical limiting clamping groove are further formed in the first cylinder.
9. The in-cylinder expansion-seal valve of claim 1, wherein: the inner expansion assembly is tubular, the outer diameters of the inner expansion assemblies are the same, and the inner diameter of the upper part of the inner expansion assembly is larger than that of the lower part of the inner expansion assembly.
10. The in-cylinder expansion-seal valve of claim 9, wherein: the inner expansion assembly is a sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120536655.6U CN215597041U (en) | 2021-03-15 | 2021-03-15 | Internal expansion sealing valve for steel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120536655.6U CN215597041U (en) | 2021-03-15 | 2021-03-15 | Internal expansion sealing valve for steel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215597041U true CN215597041U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120536655.6U Active CN215597041U (en) | 2021-03-15 | 2021-03-15 | Internal expansion sealing valve for steel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215597041U (en) |
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2021
- 2021-03-15 CN CN202120536655.6U patent/CN215597041U/en active Active
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