CN111828836A - Anti-disassembly liquefied petroleum gas cylinder valve - Google Patents
Anti-disassembly liquefied petroleum gas cylinder valve Download PDFInfo
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- CN111828836A CN111828836A CN202010708573.5A CN202010708573A CN111828836A CN 111828836 A CN111828836 A CN 111828836A CN 202010708573 A CN202010708573 A CN 202010708573A CN 111828836 A CN111828836 A CN 111828836A
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- disassembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
- F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
- F16K3/262—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a transverse bore in the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses an anti-disassembly liquefied petroleum gas cylinder valve, which comprises a valve body, wherein a valve rod is rotatably connected in the valve body, an adjusting handle is inserted on the valve rod, an elastic sealing structure is installed in the valve body, a connector structure is in threaded connection with the valve body, and a connecting seat is welded on the valve body; the valve body is provided with a vent hole, and the valve rod is provided with an air hole; the gas pocket tail end welding has the baffle, and the adjustment handle includes the cylindricality pole, and the adjustment is welded on hand has a cylindricality pole, and when the cylindricality pole contacted with the stopper, the gas pocket was the connected state with the connecting seat, and after the adjustment handle anticlockwise rotation 180 degrees, was sealed state between baffle and the air vent. The invention solves the problem that the multi-outlet switch structure can not be realized by structural improvement, and the conversion between ventilation and air cut-off can not be realized at the same time, so as to realize the effect of safe auxiliary sealing; the elastic sealing structure has narrow sealing contact surface and cannot realize the function of preventing the gas from being stolen.
Description
Technical Field
The invention belongs to the technical field of liquefied petroleum gas cylinder valves, and particularly relates to an anti-disassembly liquefied petroleum gas cylinder valve.
Background
With the development of society and the wide application of new energy, fuel gas becomes necessary fuel energy in industry and life, enters into thousands of households, liquefied petroleum gas cylinder valves are often interconnected with tank bodies, the tank bodies are mostly stored independently, and the phenomenon of gas theft still exists at present due to the irregularity of the characters.
For example, patent CN201710504974.7 discloses a liquefied petroleum gas safety cylinder valve capable of preventing aging and abrasion of sealant and preventing gas leakage during transportation and storage, wherein a valve body is composed of a closing nozzle, a switch cavity, an air inlet cavity and an air outlet cavity; a switch leakage-proof device is arranged in a bottle valve switch cavity, the switch cavity is completely separated from an air inlet cavity and an air outlet cavity and is not communicated with the air inlet cavity and the air outlet cavity, and the air inlet cavity and the air outlet cavity are communicated with each other and are matched with a valve, a movable plate, a valve rod and a hand wheel; the air outlet end of the cylinder valve is provided with a closing system which is matched with the pressure regulator. The switch leakage-proof device is composed of a gasket, a diaphragm, a locking ring, a cover plate and a rivet; the air outlet end closing system consists of a sealing pad seat, a sealing gasket, an O-shaped sealing ring, a closing spring, a fixed seat, a sealing ring, a sliding sleeve and a check ring. The invention has simple structure, good technical performance, safety, reliability and durability.
However, the lpg cylinder valve similar to the above application has the following disadvantages:
firstly, the switch adjusting structure of the existing anti-disassembly valve is mostly a single structure, ventilation and air cut-off are realized mainly through rotation of a valve rod, the air leakage phenomenon is easy to occur after the outer surface of the valve rod is worn, and the conversion of ventilation and air cut-off can not be realized through the structure improvement of the switch structure with more switch structures, so that the effect of safety auxiliary sealing is realized; secondly, part of the existing devices are provided with elastic sealing structures, but the existing elastic sealing structures have narrow sealing contact surfaces and poor sealing effect; finally, existing devices are not capable of performing anti-biogas functions.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
In order to solve the technical problems, the invention provides an anti-disassembly liquefied petroleum gas cylinder valve, which aims to solve the problems that the existing anti-disassembly type valve is mostly of a single structure, ventilation and air cut-off are realized mainly through rotation of a valve rod, the air leakage phenomenon is easy to occur after the outer surface of the valve rod is worn, and the conversion of ventilation and air cut-off can not be realized through the structure improvement of a multi-outlet switch structure so as to realize the effect of safety auxiliary sealing; moreover, the existing device can not realize the function of preventing the burglary.
In order to achieve the purpose, the invention provides an anti-disassembly liquefied petroleum gas cylinder valve which comprises a valve body, wherein a valve rod is rotationally connected in the valve body, an adjusting handle is inserted on the valve rod, an elastic sealing structure is installed in the valve body, a connector structure is in threaded connection with the valve body, and a connecting seat is welded on the valve body; the valve body is provided with a vent hole, and the valve rod is provided with an air hole; the tail end of the air hole is welded with a baffle which is in a semicircular structure; when the head end of the air hole is aligned and communicated with the connecting seat, the baffle and the air hole are aligned, and the baffle and the air hole form an auxiliary switch structure together; the valve main body comprises a limiting block, and the limiting block is welded on the valve main body; the adjustment handle includes the cylindricality pole, and the welding has a cylindricality pole on the adjustment handle, and when cylindricality pole and stopper contact, the gas pocket is the connected state with the connecting seat, and after the adjustment handle anticlockwise rotation 180 degrees, is encapsulated situation between baffle and the air vent.
In a preferred embodiment, the valve main body is connected with the tank body in a welding way, and a plurality of cleaning holes are formed in the valve main body in an annular array; the vent hole is of a semicircular structure.
In a preferred embodiment, a sealing ring is welded in the connecting seat; the air holes are of L-shaped structures; the tail end of the air hole is aligned with the air vent, and the head end of the air hole is vertically aligned with the connecting seat.
In a preferred embodiment, a key slot is formed in the center of the top end face of the valve rod, and the key slot is of an oval structure; the key head is welded at the head end of the adjusting handle and is of an elliptic cylinder structure; the key head is matched with the key slot, and the key head and the key slot jointly form a special-shaped switch structure.
In a preferred embodiment, the key head is of a hollow-like construction.
In a preferred embodiment, the elastic sealing structure comprises a sliding seat, a sealing block and an elastic piece, the sliding seat is welded in the connecting seat, and the sliding seat is of a hollow structure; the sliding seat is connected with a sealing block in a sliding way, and the sealing block is in a frustum-shaped structure; an elastic part is arranged between the sealing block and the sliding seat, and the head end of the sealing block is connected with the sealing ring in an inserting way; the through hole on the sealing ring is in a conical hole structure, and the taper of the conical hole on the sealing ring is matched with the taper of the sealing block.
In a preferred embodiment, a stop ring is welded on the sealing block, and the stop ring is in contact with the sealing ring when the sealing block is plugged and sealed with the sealing ring.
In a preferred embodiment, the connector structure comprises a connector main body, a sealing cover, a sealing gasket A and a sealing gasket B, wherein the sealing cover is welded on the connector main body, the sealing gasket A is sleeved in the sealing cover, and the sealing gasket B is embedded at the head end of the connector main body; when the connector main body is in threaded connection with the connecting seat, the sealing gasket A and the sealing gasket B are both in contact with the connecting seat, and the sealing cover and the connecting seat are in a sleeved state.
Compared with the prior art, the disassembly-preventing liquefied petroleum gas cylinder valve has the following beneficial effects:
the invention improves the structure of the valve body and the valve rod, can improve the safety and the sealing performance when the air is cut off, and can also avoid the phenomenon of air stealing, and the structure is as follows: firstly, a baffle is welded at the tail end of the air hole and is of a semicircular structure; when the head end of the air hole is aligned and communicated with the connecting seat, the baffle and the air hole are aligned, and the baffle and the air hole jointly form an auxiliary switch structure, so that the air leakage phenomenon caused by serious abrasion of the valve rod can be avoided; secondly, the adjusting handle comprises a cylindrical rod, the cylindrical rod is welded on the adjusting handle, the air hole is communicated with the connecting seat when the cylindrical rod is contacted with the limiting block, and the air hole is sealed between the baffle plate and the air hole when the adjusting handle rotates anticlockwise for 180 degrees; thirdly, a key head is welded at the head end of the adjusting handle and is of an elliptic cylindrical structure; the key head is matched with the key slot, and the key head and the key slot jointly form a special-shaped switch structure, so that the limitation of the valve rod is improved; fourthly, since the key head has a hollow structure, when the key head is inserted into the key slot, soil residues in the key slot can be collected.
According to the invention, through the matching arrangement of the valve main body and the connector structure, firstly, the elastic piece is arranged between the sealing block and the sliding seat, and the head end of the sealing block is connected with the sealing ring in an inserting manner; the through hole on the sealing ring is in a conical hole-shaped structure, and the taper of the conical hole on the sealing ring is matched with the taper of the sealing block, so that the sealing block, the sliding seat, the elastic piece and the sealing ring form an elastic sealing structure together, and the contact area of the sealing part is expanded; secondly, a baffle ring is welded on the sealing block, and the baffle ring is in contact with the sealing ring when the sealing block and the sealing ring are in plug-in sealing, so that the sealing effect can be further improved; thirdly, a sealing cover is welded on the connector main body, a sealing gasket A is sleeved in the sealing cover, and a sealing gasket B is embedded at the head end of the connector main body; when the connector main body is in threaded connection with the connecting seat, the sealing gasket A and the sealing gasket B are both in contact with the connecting seat, and the sealing cover and the connecting seat are in a sleeved state, so that the sealing effect can be improved.
Drawings
Fig. 1 is a schematic axial view of an lpg cylinder valve according to the present invention.
Fig. 2 is a schematic sectional view showing a disassembled structure of the liquefied petroleum gas cylinder valve of the present invention.
Fig. 3 is a schematic front view of fig. 2 according to the present invention.
Fig. 4 is a schematic front view of the connecting head structure of fig. 2 according to the present invention.
Fig. 5 is an enlarged schematic view of fig. 4 at a.
Fig. 6 is a schematic cross-sectional view of the valve body and valve stem of the present invention.
Fig. 7 is a schematic axial view of the valve stem of fig. 6 after slight movement in accordance with the present invention.
Fig. 8 is an enlarged axial view of the adjustment handle of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a valve body; 101. cleaning the holes; 102. a vent hole; 103. a limiting block; 104. a connecting seat; 105. a seal ring; 2. a valve stem; 201. air holes; 202. a baffle plate; 203. a key slot; 3. an elastic sealing structure; 301. a sliding seat; 302. a sealing block; 30201. a baffle ring; 303. an elastic member; 4. a connector structure; 401. a connector main body; 402. a sealing cover; 403. a gasket A; 404. a gasket B; 5. adjusting the handle; 501. a cylindrical rod; 502. a key head.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
as shown in fig. 1 to 8, the disassembly-preventing liquefied petroleum gas cylinder valve comprises a valve body 1, wherein a valve rod 2 is rotatably connected in the valve body 1, an adjusting handle 5 is inserted in the valve rod 2, an elastic sealing structure 3 is installed in the valve body 1, a connector structure 4 is in threaded connection with the valve body 1, a connecting seat 104 is welded on the valve body, an air vent 102 is formed in the valve body 1, and an air hole 201 is formed in the valve rod. Referring to fig. 6 and 7, a baffle 202 is welded to the tail end of the air hole 201, and the baffle 202 has a semicircular structure. When the head end of the air hole 201 is aligned and communicated with the connecting seat 104, the baffle plate 202 is aligned with the air hole 102, and the baffle plate 202 and the air hole 102 jointly form an auxiliary switch structure, so that the air leakage phenomenon caused by serious abrasion of the valve rod 2 can be avoided. Referring to fig. 2, a limiting block 103 is welded on the valve body 1. The adjusting handle 5 comprises a cylindrical rod 501, the cylindrical rod 501 is welded on the adjusting handle 5, the air hole 201 is communicated with the connecting seat 104 when the cylindrical rod 501 contacts with the limiting block 103, and the adjusting handle 5 rotates anticlockwise for 180 degrees to form a sealing state between the rear baffle 202 and the air hole 102.
In a preferred embodiment, referring to fig. 6, the valve body 1 is welded to the tank, and the valve body 1 has a plurality of cleaning holes 101 arranged in an annular array. Preferably, the ventilation holes 102 are semicircular structures. Referring to fig. 6, a sealing ring 105 is welded in the connecting socket 104. The air hole 201 on the valve rod 2 is an L-shaped structure, the tail end of the air hole 201 is aligned with the air hole 102, and the head end of the air hole 201 is vertically aligned with the connecting seat 104.
Example 2:
as shown in fig. 1 to 8, the disassembly-preventing liquefied petroleum gas cylinder valve comprises a valve body 1, wherein a valve rod 2 is rotatably connected in the valve body 1, an adjusting handle 5 is inserted in the valve rod 2, an elastic sealing structure 3 is installed in the valve body 1, a connector structure 4 is in threaded connection with the valve body 1, a connecting seat 104 is welded on the valve body, an air vent 102 is formed in the valve body 1, and an air hole 201 is formed in the valve rod. Referring to fig. 6 and 7, a baffle 202 is welded to the tail end of the air hole 201, and the baffle 202 has a semicircular structure. When the head end of the air hole 201 is aligned and communicated with the connecting seat 104, the baffle plate 202 is aligned with the air hole 102, and the baffle plate 202 and the air hole 102 jointly form an auxiliary switch structure, so that the air leakage phenomenon caused by serious abrasion of the valve rod 2 can be avoided. Referring to fig. 2, a limiting block 103 is welded on the valve body 1. The adjusting handle 5 comprises a cylindrical rod 501, the cylindrical rod 501 is welded on the adjusting handle 5, the air hole 201 is communicated with the connecting seat 104 when the cylindrical rod 501 contacts with the limiting block 103, and the adjusting handle 5 rotates anticlockwise for 180 degrees to form a sealing state between the rear baffle 202 and the air hole 102.
In a preferred embodiment, referring to fig. 2, the valve stem 2 further comprises a key slot 203, the central position of the top end surface of the valve stem 2 is provided with a key slot 203, and the key slot 203 has an oval structure; the adjusting handle 5 further comprises a key head 502, the key head 502 is welded at the head end of the adjusting handle 5, and the key head 502 is of an elliptic cylinder structure; the key head 502 is matched with the key slot 203, and the key head 502 and the key slot 203 jointly form an irregular switch structure, so that the limitation of the valve rod 2 is improved.
In a preferred embodiment, referring to fig. 8, the key head 502 is hollow so that when the key head 502 is inserted into the key slot 203, dirt residue within the key slot 203 can be collected.
Example 3:
in a preferred embodiment, referring to fig. 4 and 5, the elastic sealing structure 3 includes a sliding seat 301, a sealing block 302 and an elastic member 303, the sliding seat 301 is welded in the connecting seat 104, and the sliding seat 301 is a hollow structure. The sliding seat 301 is slidably connected with a sealing block 302, and the sealing block 302 is of a frustum-shaped structure. An elastic member 303 is disposed between the sealing block 302 and the sliding seat 301, and the head end of the sealing block 302 is connected to the sealing ring 105 in an inserting manner. The through hole on the sealing ring 105 is a tapered hole-shaped structure, and the taper of the tapered hole on the sealing ring 105 is matched with the taper of the sealing block 302, so that the sealing block 302, the sliding seat 301, the elastic member 303 and the sealing ring 105 jointly form an elastic sealing structure, and the contact area of the sealing part is expanded.
In a preferred embodiment, referring to fig. 5, the sealing block 302 further includes a stopper 30201, one stopper 30201 is welded on the sealing block 302, and the stopper 30201 is in contact with the sealing ring 105 when the sealing block 302 is inserted into the sealing ring 105 for sealing, so that the sealing effect can be further improved.
In a preferred embodiment, referring to fig. 5, the connecting head structure 4 includes a connecting head main body 401, a sealing cover 402, a gasket a403, and a gasket B404, wherein the connecting head main body 401 is welded with the sealing cover 402, the gasket a403 is sleeved in the sealing cover 402, and the head end of the connecting head main body 401 is inlaid with the gasket B404; when the connector body 401 is screwed with the connector base 104, the sealing pad a403 and the sealing pad B404 are both in contact with the connector base 104, and the sealing cap 402 is sleeved with the connector base 104, so that the sealing effect can be improved.
Example 4:
when the anti-disassembly liquefied petroleum gas cylinder valve is used, firstly, when the valve rod 2 is adjusted, firstly, a baffle 202 is welded at the tail end of the air hole 201, and the baffle 202 is of a semicircular structure; when the head end of the air hole 201 is aligned and communicated with the connecting seat 104, the baffle plate 202 and the air hole 102 are aligned, and the baffle plate 202 and the air hole 102 jointly form an auxiliary switch structure, so that the air leakage phenomenon caused by serious abrasion of the valve rod 2 can be avoided; secondly, the adjusting handle 5 comprises a cylindrical rod 501, the cylindrical rod 501 is welded on the adjusting handle 5, the air hole 201 is communicated with the connecting seat 104 when the cylindrical rod 501 contacts with the limiting block 103, and the air hole 102 is sealed after the adjusting handle 5 rotates 180 degrees counterclockwise; thirdly, a key head 502 is welded at the head end of the adjusting handle 5, and the key head 502 is of an elliptic cylindrical structure; the key head 502 is matched with the key slot 203, and the key head 502 and the key slot 203 jointly form a special-shaped switch structure, so that the limitation of the valve rod 2 is improved; fourth, since the key head 502 has a hollow structure, when the key head 502 is inserted into the key slot 203, soil residues in the key slot 203 can be collected.
When the connector structure 4 is connected to the connector base 104, firstly, the elastic member 303 is disposed between the sealing block 302 and the sliding base 301, and the head end of the sealing block 302 is connected to the sealing ring 105 in an inserting manner; the through hole on the sealing ring 105 is in a conical hole-shaped structure, and the conical degree of the conical hole on the sealing ring 105 is matched with the conical degree of the sealing block 302, so that the sealing block 302, the sliding seat 301, the elastic part 303 and the sealing ring 105 jointly form an elastic sealing structure, and the contact area of the sealing part is expanded; secondly, as the sealing block 302 is welded with the baffle ring 30201, and the baffle ring 30201 is in contact with the sealing ring 105 when the sealing block 302 and the sealing ring 105 are plugged and sealed, the sealing effect can be further improved; thirdly, a sealing cover 402 is welded on the connector main body 401, a sealing gasket A403 is sleeved in the sealing cover 402, and a sealing gasket B404 is embedded at the head end of the connector main body 401; when the connector body 401 is screwed with the connector base 104, the sealing pad a403 and the sealing pad B404 are both in contact with the connector base 104, and the sealing cap 402 is sleeved with the connector base 104, so that the sealing effect can be improved.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (9)
1. The utility model provides an anti-disassembly's liquefied petroleum gas cylinder valve which characterized in that: the valve comprises a valve body (1), a valve rod (2) is rotatably connected in the valve body (1), an adjusting handle (5) is inserted on the valve rod (2), an elastic sealing structure (3) is installed in the valve body (1), a connector structure (4) is in threaded connection with the valve body (1), and a connecting seat (104) is welded on the valve body (1); the valve comprises a valve body (1), a valve rod (2) and a baffle plate (202), wherein the valve body (1) is provided with a vent hole (102), the valve rod (2) is provided with an air hole (201), the tail end of the air hole (201) is welded with the baffle plate (202), and the baffle plate (202) is of a semicircular structure; when the head end of the air hole (201) is aligned and communicated with the connecting seat (104), the baffle plate (202) and the air hole (102) are aligned, and the baffle plate (202) and the air hole (102) jointly form an auxiliary switch structure; the valve main body (1) further comprises a limiting block (103) which is connected to the valve main body (1) in a welding mode; adjustment handle (5) include cylindricality pole (501), the welding has a cylindricality pole (501) on adjustment handle (5), and works as cylindricality pole (501) with during stopper (103) contact, gas pocket (201) with connecting seat (104) are the intercommunication state, and when the adjustment handle (5) anticlockwise rotation 180 degrees back, baffle (202) with be sealed condition between air vent (102).
2. The disassembly-preventing liquefied petroleum gas cylinder valve as set forth in claim 1, wherein: the valve main body (1) is connected with the tank body in a welding mode, and a plurality of cleaning holes (101) are formed in the valve main body (1) in an annular array mode; the vent hole (102) is of a semicircular structure.
3. The disassembly-preventing liquefied petroleum gas cylinder valve as set forth in claim 1, wherein: a sealing ring (105) is welded in the connecting seat (104); the air hole (201) is of an L-shaped structure, the tail end of the air hole (201) is aligned with the air vent (102), and the head end of the air hole (201) is vertically aligned with the connecting seat (104).
4. The disassembly-preventing liquefied petroleum gas cylinder valve as set forth in claim 1, wherein: a key slot (203) is formed in the center of the top end face of the valve rod (2), and the key slot (203) is of an oval structure; a key head (502) is welded at the head end of the adjusting handle (5), and the key head (502) is of an elliptic cylinder structure; the key head (502) is matched with the key slot (203), and the key head (502) and the key slot (203) jointly form a special-shaped switch structure.
5. The disassembly-preventing liquefied petroleum gas cylinder valve as set forth in claim 4, wherein: the key head (502) is of a hollow structure.
6. The disassembly-preventing liquefied petroleum gas cylinder valve as set forth in claim 3, wherein: the elastic sealing structure (3) comprises a sliding seat (301), a sealing block (302) and an elastic piece (303), the sliding seat (301) is welded in the connecting seat (104), and the sliding seat (301) is of a hollow structure; the sliding seat (301) is connected with a sealing block (302) in a sliding mode, and the sealing block (302) is of a frustum-shaped structure; the elastic piece (303) is arranged between the sealing block (302) and the sliding seat (301), and the head end of the sealing block (302) is connected with the sealing ring (105) in an inserting mode.
7. The disassembly-preventing liquefied petroleum gas cylinder valve as set forth in claim 6, wherein: the through hole on the sealing ring (105) is in a conical hole-shaped structure, and the conical degree of the conical hole on the sealing ring (105) is matched with that of the sealing block (302).
8. The disassembly-preventing liquefied petroleum gas cylinder valve as claimed in claim 7, wherein: the sealing block (302) is welded with a baffle ring (30201), and when the sealing block (302) is plugged and sealed with the sealing ring (105), the baffle ring (30201) is in contact with the sealing ring (105).
9. The disassembly-preventing liquefied petroleum gas cylinder valve as set forth in claim 1, wherein: the connector structure (4) comprises a connector main body (401), a sealing cover (402), a sealing gasket A (403) and a sealing gasket B (404), wherein the sealing cover (402) is welded on the connector main body (401), the sealing gasket A (403) is sleeved in the sealing cover (402), and the sealing gasket B (404) is embedded at the head end of the connector main body (401); when connector main part (401) with when connecting seat (104) threaded connection, sealed pad A (403) with sealed pad B (404) all with connecting seat (104) contact, just sealed cowling (402) with connecting seat (104) are the bell and spigot joint state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010708573.5A CN111828836B (en) | 2020-07-22 | 2020-07-22 | Anti-disassembly liquefied petroleum gas cylinder valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010708573.5A CN111828836B (en) | 2020-07-22 | 2020-07-22 | Anti-disassembly liquefied petroleum gas cylinder valve |
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| CN111828836A true CN111828836A (en) | 2020-10-27 |
| CN111828836B CN111828836B (en) | 2022-06-24 |
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Cited By (1)
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|---|---|---|---|---|
| CN113390013A (en) * | 2021-06-25 | 2021-09-14 | 深圳安博智控科技有限公司 | Special gas cylinder anti-theft device |
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| CN111828836B (en) | 2022-06-24 |
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