CN110617361A - Coded lock anti-charging valve with self-closing function - Google Patents
Coded lock anti-charging valve with self-closing function Download PDFInfo
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- CN110617361A CN110617361A CN201810627885.6A CN201810627885A CN110617361A CN 110617361 A CN110617361 A CN 110617361A CN 201810627885 A CN201810627885 A CN 201810627885A CN 110617361 A CN110617361 A CN 110617361A
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- coded
- disc
- password
- disk
- cylinder
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- 238000007789 sealing Methods 0.000 claims description 18
- 238000009423 ventilation Methods 0.000 claims description 6
- 239000010985 leather Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 19
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000007599 discharging Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a coded lock anti-charging valve with a self-closing function, which is characterized in that a coded lock anti-charging device is arranged at a valve nozzle and provided with a plurality of coded disks and a coded shaft, aligning grooves and lugs for driving adjacent coded disks to rotate are arranged on the coded disks, the coded shafts are driven to rotate by rotating top protrusions, all the aligning grooves are required to be sleeved into a column block on the coded shaft according to setting of each coded disk, an air charging channel is opened, and otherwise, the whole coded lock anti-charging device is in a closed state as long as one coded shaft sleeve cannot be sleeved on the column block. The limiting coded disc is arranged on the limiting coded disc, the limiting disc prevents illegal forced inflation of the valve, and the coded lock filling prevention device enables inflation to be safe.
Description
Technical Field
The invention relates to the technical field of liquefied petroleum gas filling, in particular to a coded lock anti-filling valve with a self-closing function.
Background
In recent years, liquefied gas is used as a novel fuel and rapidly enters thousands of households, but the safety of the personal and property of the users can be endangered due to the potential safety hazard of a liquefied gas steel cylinder filled with the liquefied gas.
Currently, in the liquefied gas filling industry, a plurality of irregular filling points are in business, the filling points have no filling quality, the filling equipment and the filling technology cannot meet the requirements specified by the state, and a large potential safety hazard exists when a liquefied gas steel cylinder is filled with gas.
In order to ensure the life and property safety of users, the intelligent valve of the currently used liquefied gas steel cylinder has a fixed-point filling function, so that the liquefied gas steel cylinder adopts a fixed-point filling mode, and perfect management files can be established for the liquefied gas steel cylinder. However, in actual use of the intelligent valve, illegal operation or malicious damage (such as strong magnetism or gas discharge of the steel cylinder can be achieved by opening the intelligent valve), so that the limit charging of the liquefied gas steel cylinder is disabled, the use of the liquefied gas steel cylinder has great potential safety hazard, and the life and property safety of users is seriously threatened.
Therefore, the problem needs to be solved by arranging a corresponding anti-filling device in the valve, and the coded lock anti-filling technology with the self-closing function at the valve filling opening is realized for the first time.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a coded lock anti-charging valve with a self-closing function.
In order to solve the technical problem, the invention is realized by the following scheme: a coded lock anti-charging valve with a self-closing function comprises a valve body, wherein a valve nozzle for air inlet and outlet is arranged on the valve body, a bearing sleeve is fixed in the valve nozzle and provided with a through hole, and a coded lock anti-charging device is arranged in a cavity between the through hole of the bearing sleeve and the air outlet when the valve nozzle is charged; the coded lock anti-charging device comprises a top protrusion and at least 3 coded discs, a coded shaft and a jacking nut, wherein the at least 3 coded discs are sequentially sleeved on a convex column part at one end of the top protrusion, one limiting coded disc sleeved on a lower column of the convex column part is provided with a first circular groove for accommodating one limiting disc, the face, facing the air outlet direction, of the limiting coded disc is provided with a head-end coded disc, an aligning groove for aligning and a lug for driving the adjacent coded disc to rotate are arranged on a middle coded disc between the head-end coded disc and a tail-end coded disc, the tail-end coded disc is provided with an aligning groove for aligning and a lug driven by the coded shaft to rotate back to an initial state, the coded shaft is a stepped cylinder, a column block for sleeving the aligning groove is arranged on the wall of each layer of column, the outer wall of the coded shaft is sleeved with a coded disc reset spring, and the face, facing the air charging direction, of the jacking nut is provided with a lug, the boss is sleeved with a movable shaft spring.
Furthermore, the outward end of the bearing sleeve is a first cylinder, the first cylinder is in threaded connection with the inner wall of the valve nozzle, the inflating end of the first cylinder is a bowl surface, and a linear notch is formed in the diameter direction of the opening part at the edge of the bowl surface;
the bottom of the bowl and cup surface is provided with a through hole;
the first cylinder is connected with a second cylinder with a smaller diameter than the first cylinder, the outer wall of the second cylinder is provided with a circle of first groove, a bearing sleeve sealing O-shaped ring is sleeved on the first groove, and the bearing sleeve sealing O-shaped ring is sealed with the inner wall of the valve nozzle;
an annular groove is formed in the outer side of the through hole of the air outlet end of the second cylinder, and a conical convex ring is arranged on the edge of the annular groove and the edge of the through hole;
and a chamfer is arranged at the corner of the first cylinder close to the second cylinder.
Furthermore, the side wall of the cylinder at one end of the top projection is provided with a plurality of cambered surface grooves for air inlet, and the outer end part of the cylinder is provided with a straight groove;
the other end of the cylinder body is connected with a disc body, a circle of second groove is arranged at the position, close to the outer wall of the cylinder body, of the disc body, and a sealing leather cup is sleeved on the second groove;
the center of the surface of the disc body facing the inflation direction is provided with a convex column part, and the convex column part comprises a lower column and a long upper column connected to the middle part of the lower column;
two sides of the outer wall of the long upper column are respectively provided with a straight square block, the straight square blocks are symmetrically arranged on the long upper column, and the bottom surfaces of the straight square blocks are fixed on the annular surface of the lower column;
and the cylinder at one end of the top projection is arranged in the through hole of the bearing sleeve and can move back and forth at the through hole.
Furthermore, the diameter of the sealing leather cup is larger than that of the conical convex ring.
Furthermore, the lower column is sleeved with a limiting password disc, a plurality of first convex blocks are arranged on the side wall of the edge of the disc body of the limiting password disc, a circular hole is formed in the middle of the disc body, and the limiting disc is accommodated in a first circular groove formed in the face, facing the air outlet, of the disc body.
Furthermore, the middle part of the plate body of the limiting plate is provided with a first round hole, and the inner wall of the first round hole in the diameter direction is provided with a first limiting notch.
Furthermore, a circle of third concave ring is arranged on the outer wall of the disc body of the head-end password disc, a limit password disc O-shaped ring is sleeved on the third concave ring,
a plurality of first arc-shaped holes which are not connected with each other and are used for ventilation are arranged on the disk body of the first-end password disk, and each first arc-shaped hole is concentric with the disk body of the first-end password disk;
a second round hole is formed in the middle of the disc body of the first-end password disc, and a second limiting notch is formed in the inner wall of the second round hole in the diameter direction;
a second circular groove is formed in the surface, facing the air inlet direction, of the disc body of the first-end password disc, surrounds the second circular hole and the second limiting notch, is concentric with the second circular hole, is opposite to the first circular groove, and can be accommodated in the second circular groove;
the first end code disc faces to the air outlet direction, and a second bump is arranged on the disc body between the second round hole and the first arc-shaped hole.
Furthermore, the tail end password disk is a tail end password disk, the outer wall of the disk body of the tail end password disk is provided with a circle of fourth concave ring, a second password disk O-shaped ring is sleeved on the fourth concave ring,
a plurality of non-connected second arc-shaped holes for ventilation are formed in the disk body of the tail end password disk, and each second arc-shaped hole is concentric with the disk body of the tail end password disk;
a third round hole is formed in the middle of the disc body of the tail end password disc, and a third limiting notch is formed in the inner wall of the third round hole in the diameter direction;
a third circular groove is formed in the surface, facing the air inlet direction, of the disc body of the tail end password disc, surrounds the third circular hole and the third limiting notch and is concentric with the third circular hole, a stop block is arranged on the annular surface of the third circular groove and used for stopping a convex block on the middle password disc adjacent to the tail end password disc, and the tail end password disc can rotate to drive the middle password disc to rotate through the stop block;
the face of the tail end password disk facing the air outlet direction and the disk body between the second round hole and the first arc-shaped hole are provided with third convex blocks, and the third convex blocks are driven by the password shaft to rotate back to the initial state.
Furthermore, the middle password disk and the tail password disk are consistent in structure, the diameter of a circular hole in the middle of the middle password disk corresponds to the diameter of a stepped cylinder on the password shaft one by one, and the alignment grooves on the middle password disk correspond to the column blocks on the password shaft one by one.
Further, the stepped cylinder on the through hole in the middle of the password shaft is provided with multiple layers, a straight groove used for placing a straight square is formed in the diameter direction of the end part of the top cylinder, two column blocks located in the diameter direction of the cylinder are arranged on each step ring surface of the stepped cylinder, two T-shaped column blocks are arranged in the diameter direction of the outer side wall of the bottom cylinder, and the column blocks, the T-shaped column blocks and the straight groove are located on one vertical surface.
Compared with the prior art, the invention has the beneficial effects that: the coded lock anti-charging valve with the self-closing function is provided with a coded lock anti-charging device at a valve nozzle, the coded lock anti-charging device is provided with a plurality of coded discs and a coded shaft, the coded discs are provided with alignment grooves and lugs for driving adjacent coded discs to rotate, the coded shafts are driven to rotate by rotating top protrusions, all the alignment grooves of the coded discs are required to be sleeved into a column block on the coded shaft according to setting through the rotation of the coded shafts, an inflation channel is opened, otherwise, the whole coded lock anti-charging device is in a closed state as long as one coded disc cannot be sleeved on the column block. The limiting disks are arranged on the limiting password disks, only when all password disks are opened, all password disks can move a certain distance towards the air inlet direction under the action of airflow, the limiting disks can limit the limiting password disks on the anti-charging sealing surface at the moment, and thus the limiting password disks are separated from the head end password disks in a sealing manner, and the whole air inlet passage is opened under the action of airflow. In the air discharging process, the air discharging acting force can directly push the limiting password disc away for a certain distance in the air discharging direction, and the limiting sealing disc is separated from the head end password disc in a sealing mode, so that the air discharging function is realized. The effective gas-charging and gas-discharging intercepting surface of the coded lock anti-charging device with the self-closing function is larger than the industrial design standard, the self-closing function and the anti-charging function are combined, and the high-efficiency safety of gas charging and gas charging is greatly improved. Meanwhile, on the premise of meeting the national standard requirements, the comprehensive cost of the product is reduced, and the market competitiveness and the viability of the product can be greatly improved.
Drawings
FIG. 1 is a cross-sectional view of the valve of the present invention and disposed within a valve nozzle;
FIG. 2 is an exploded view of the combination lock anti-charge apparatus of the present invention;
FIG. 3 is an exploded view of the other side of the combination lock anti-charge apparatus of the present invention;
FIG. 4 is a diagram of the self-closing state of the anti-charging device of the combination lock of the present invention in the non-charging state;
FIG. 5 is a view of the open state of the combination lock anti-charging device of the present invention in an inflated state;
FIG. 6 is a flow diagram of liquefied gas after the coded lock anti-charging device is opened according to the present invention;
FIG. 7 is a schematic view of the closed state of the anti-charging device of the combination lock during forced charging under the illegal state according to the present invention;
FIG. 8 is a schematic view of a receiving sleeve according to the present invention;
FIG. 9 is another schematic structural view of the receiving sleeve of the present invention;
FIG. 10 is a schematic view of the configuration of the crown of the present invention;
FIG. 11 is another structural schematic view of the crown of the present invention;
FIG. 12 is a schematic view of a structure of a jacking nut according to the present invention;
FIG. 13 is a schematic view of a seal shaft configuration of the present invention;
FIG. 14 is a schematic view of the end seal disk construction of the present invention;
FIG. 15 is another structural schematic view of the end seal disk of the present invention;
FIG. 16 is a schematic structural view of a head end seal disk of the present invention;
FIG. 17 is another structural schematic view of the head end seal disk of the present invention;
FIG. 18 is a schematic structural view of the limiting seal disk of the present invention;
fig. 19 is a schematic view of a spacing plate structure.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
Referring to fig. 1-19, the coded lock anti-charging valve with the self-closing function of the invention comprises a valve body 1, a valve nozzle for air inlet and outlet is arranged on the valve body 1, a bearing sleeve 207 is fixed in the valve nozzle, the bearing sleeve 207 is provided with a through hole, and a coded lock anti-charging device 2 is arranged in a cavity between the through hole of the bearing sleeve 207 and the air outlet when the valve nozzle is charged; the coded lock anti-charging device 2 comprises a top projection 208, at least 3 coded discs sleeved on a convex column part at one end of the top projection 208 in sequence, a coded shaft 212 and a tightening nut 213, wherein a limiting coded disc 210 sleeved on a lower column of the convex column part is provided with a first circular groove for accommodating a limiting disc 211, a head-end coded disc 205 is arranged on the surface of the limiting coded disc 210 facing to the air outlet direction, aligning grooves for aligning and a lug for driving the adjacent coded discs to rotate are arranged on the middle coded disc between the head-end coded disc 205 and the tail-end coded disc, an aligning groove for aligning and a lug driven by the coded shaft 212 to rotate back to the initial state are arranged on the tail-end coded disc, the coded shaft 212 is a stepped cylinder, a column block for sleeving the aligning groove is arranged on the column wall of each layer, and a reset spring 201 of the coded shaft 212 is sleeved on the outer wall of the coded shaft, a boss 2131 is provided on one surface of the tightening nut 213 facing the inflation direction, and a movable shaft spring 214 is fitted over the boss 2131.
A preferred technical solution of this embodiment: the outward end of the bearing sleeve 207 is a first cylinder 2077, the first cylinder 2077 is in threaded connection with the inner wall of the valve nozzle, the inflating end of the first cylinder 2077 is a bowl cup surface 2078, and a linear notch 2076 is arranged in the diameter direction of the opening part at the edge of the bowl cup surface 2078;
the bottom of the bowl surface 2078 is provided with a through hole;
the first cylinder 2077 is connected with a second cylinder 2073 with a smaller diameter than the first cylinder 2077, the outer wall of the second cylinder 2073 is provided with a circle of first grooves 2074, the first grooves 2074 are sleeved with a bearing sleeve sealing O-ring 206, and the bearing sleeve sealing O-ring 206 is sealed with the inner wall of the valve nozzle;
an annular groove 2071 is arranged at the outer side of the through hole at the air outlet end of the second cylinder 2073, and a conical convex ring 2072 is arranged at the edge of the annular groove 2071 and the through hole;
a chamfer 2075 is provided at a corner of the first cylinder 2077 adjacent to the second cylinder 2073.
A preferred technical solution of this embodiment: a plurality of cambered surface grooves 2085 for air inlet are formed in the side wall of the cylinder at one end of the top projection 208, and a straight groove 2087 is formed in the outer end of the cylinder;
the other end of the column body is connected with a disc body 2084, a circle of second groove 2086 is arranged at the position, close to the outer wall of the column body, of the disc body, and a sealing leather cup 209 is sleeved on the second groove 2086;
the surface center of the disc body 2084 facing the inflation direction is provided with a convex column part, and the convex column part comprises a lower column 2083 and a long upper column 2081 connected to the middle part of the lower column 2083;
two sides of the outer wall of the long upper column 2081 are respectively provided with a square 2082, the square 2082 is symmetrically arranged by the long upper column 2081, and the bottom surface of the square 2082 is fixed on the circular ring surface of the lower column 2083;
the cylinder at one end of the top projection 208 is arranged in the through hole of the receiving sleeve 207, and the cylinder can move back and forth at the through hole.
A preferred technical solution of this embodiment: the diameter of the sealing cup 209 is larger than the diameter of the conical convex ring 2072.
A preferred technical solution of this embodiment: the lower column 2083 is sleeved with a limiting password disk 210, the side wall of the edge of the disk body of the limiting password disk 210 is provided with a plurality of first convex blocks 2102, the middle part of the disk body is provided with a circular hole, and a limiting disk 211 is accommodated in a first circular groove 2101 arranged on the surface of the disk body facing to the air outlet.
A preferred technical solution of this embodiment: the middle part of the plate body of the limiting plate 211 is provided with a first round hole 2111, and the inner wall of the first round hole 2111 in the diameter direction is provided with a first limiting notch 2112.
A preferred technical solution of this embodiment: a circle of third concave ring 2054 is arranged on the outer wall of the head-end password disk 205, a limit password disk O-shaped ring 204 is sleeved on the third concave ring 2054,
a plurality of non-connected first arc-shaped holes 2053 for ventilation are formed in the disk body of the head-end password disk 205, and each first arc-shaped hole 2053 is concentric with the disk body of the head-end password disk 205;
a second round hole is formed in the middle of the disc body of the head-end password disc 205, and a second limiting notch 2051 is formed in the inner wall of the second round hole in the diameter direction;
a second circular groove 2052 is formed in the surface, facing the air inlet direction, of the disc body of the head-end password disc 205, the second circular groove 2052 surrounds the second circular hole and the second limiting notch 2051 and is concentric with the second circular hole, the second circular groove 2052 is opposite to the first circular groove 2101, and the limiting disc 211 can be accommodated in the second circular groove 2052;
the second protrusion 2055 is disposed on the disk body between the second circular hole and the first arc-shaped hole 2053 on the surface of the head-end code disk 205 facing the air outlet direction.
A preferred technical solution of this embodiment: the tail-end password disk is a tail-end password disk 203, the outer wall of the disk body of the tail-end password disk is provided with a circle of fourth concave ring 2034, a second password disk O-shaped ring 202 is sleeved on the fourth concave ring 2034,
a plurality of non-connected second arc-shaped holes 2031 for ventilation are arranged on the disk body of the tail end password disk 203, and each second arc-shaped hole 2031 is concentric with the disk body of the tail end password disk 203;
a third round hole is formed in the middle of the disc body of the tail-end password disc 203, and a third limiting notch 2035 is formed in the inner wall of the third round hole in the diameter direction;
a third circular groove 2032 is formed in the surface, facing the air inlet direction, of the disc body of the tail-end password disc 203, the third circular groove 2032 surrounds the third circular hole and the third limiting notch 2035 and is concentric with the third circular hole, a stop dog 2033 is arranged on the annular surface of the third circular groove 2032, the stop dog 2033 is used for blocking a convex block on an intermediate password disc adjacent to the tail-end password disc 203, the stop dog 2033 can be driven to rotate by the rotation of the intermediate password disc, and the stop dog 2033 further drives the tail-end password disc 203 to rotate;
the face of the end password disk 203 facing the air outlet direction and the disk body between the second circular hole and the first arc-shaped hole 2053 are provided with a third bump 2036, and the third bump 2036 is driven by the password shaft 212 to rotate back to the initial state.
A preferred technical solution of this embodiment: the middle password disk and the tail password disk 203 are consistent in structure, the diameter of a circular hole in the middle of the middle password disk corresponds to the diameter of a stepped cylinder on the password shaft 212 one by one, and the alignment grooves on the middle password disk correspond to the column blocks on the password shaft 212 one by one.
A preferred technical solution of this embodiment: the stepped cylinder on the through hole in the middle of the cipher shaft 212 is provided with multiple layers, a straight groove 2124 for placing a square 2082 is arranged in the diameter direction of the end part of the top cylinder, two column blocks 2123 in the diameter direction of the cylinder are arranged on each stepped ring surface of the stepped cylinder, two T-shaped column blocks 2121 are arranged in the diameter direction of the outer side wall of the bottom cylinder, and the column blocks 2123, the T-shaped column blocks 2121 and the straight groove 2124 are arranged on a vertical surface.
Example 1: take 3 combination disks as an example.
As shown in fig. 5-6, fig. 5 is a diagram of an open state of the anti-charging device of the coded lock in an inflated state, fig. 6 is a flow chart of liquefied gas after the anti-charging device of the coded lock is opened, and the opening mode of the anti-charging device of the coded lock is as follows:
since the code disc of the code lock charge prevention device is disturbed during use, it is necessary to first control the code disc of the code lock charge prevention device to an initial state (reset).
The end part of the rotary driving device on the filling gun is aligned to the linear groove 2087 at the tail end of the top projection 208, the rotary driving device rotates to drive the top projection 208 to rotate, and the vertical blocks 2082 on the top projection 208 are matched with the linear grooves 2124 of the password shaft 212 to form a driving shaft for positive and negative rotation of all password disks. The top protrusion 208 drives the cipher shaft 212 to rotate, and when the column block (2123) passing through the cipher shaft 212 rotates, the third protrusion 2036 on the lower part of the tail cipher disk 203 is first driven to rotate, so that the tail cipher disk is reset first, and the tail cipher disk 203 and the cipher shaft 212 continue to rotate synchronously to drive the middle cipher disk to reset, and then the tail cipher disk and the cipher shaft continue to rotate synchronously in the same direction to drive the head cipher disk 205 to reset, so that the seal shaft drives each cipher disk to be in the initial state. And then the password shaft reversely rotates for the first time according to the set rotation angle of the background program to enable the first-end password disk 205 to complete password opening firstly, the password shaft drives the opening rotation direction of each password disk to be opposite to the last rotation direction, and so on, the opening of the middle password disk is completed, and finally the opening of the tail-end password disk 203 is completed.
At the moment, the limiting notches of all the password disks are in one-to-one correspondence with the column blocks on the password shaft, all the password disks can move for a certain distance towards the air inlet direction under the action of airflow, and at the moment, the limiting disks can limit the limiting password disks (210) on the anti-charging sealing surface, so that the limiting password disks are separated from the head-end password disks in a sealing manner, and the whole air inlet channel is opened under the action of airflow. Then liquefied gas of the inflation gun enters from the arc groove of the top projection 208, enters into the gap between the outer wall of the limiting password disk and the valve nozzle along the gap between the top projection 208 and the inner wall of the valve nozzle, enters into the cavity between the password shaft and the valve nozzle from the arc hole, enters into the main cavity of the valve body from the gap between the jacking nut 213 and the valve nozzle, and finally enters into the liquefied gas steel cylinder from the main cavity of the valve body.
Example 2: the state of the anti-charging device of the coded lock when the valve is illegally forced to be charged.
As shown in fig. 7, when the anti-charging device of the coded lock is forced to be charged illegally, the coded disks are in a dislocation state, the limiting disk seals the circular groove in the middle of the first-end coded disk to prevent liquefied gas from passing through the gap of the circular hole, the limiting coded disk is overlapped with the first-end coded disk, the limiting coded disk blocks all arc-shaped holes in the first-end coded disk, and the whole air passage is sealed, so that the coded lock cannot be charged in an illegal forced charging state.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a valve is prevented filling by trick lock that possesses self-closing function, should prevent filling the valve and include valve body (1), be provided with the valve cock of business turn over gas on valve body (1), the valve cock internal fixation has socket (207), socket (207) are provided with through-hole, its characterized in that: a coded lock anti-charging device (2) is arranged in a chamber between the through hole of the bearing sleeve (207) and the air outlet when the valve nozzle is charged; the coded lock anti-charging device (2) comprises a top projection (208), at least 3 coded discs, a coded shaft (212) and a puller nut (213), wherein the coded discs are sequentially sleeved on a convex column part at one end of the top projection (208), one of the limited coded discs (210) sleeved on a lower column of the convex column part is provided with a first circular groove for accommodating one limited disc (211), a head-end coded disc (205) is arranged on the surface of the limited coded disc (210) facing to the air outlet direction, alignment grooves for alignment and lugs for driving adjacent coded discs to rotate are arranged on the coded discs in the middle between the head-end coded disc (205) and the tail-end coded disc, alignment grooves for alignment and lugs driven by the coded shaft (212) to rotate back to the initial state are arranged on the tail-end coded disc, the coded shaft (212) is a stepped cylinder, and a column block for sleeving the alignment grooves is arranged on the wall of each column, the outer wall of the code shaft (212) is sleeved with a code disc return spring (201), one surface of the jacking nut (213) facing to the inflating direction is provided with a boss (2131), and the boss (2131) is sleeved with a movable shaft spring (214).
2. The coded lock anti-charging valve with the self-closing function according to claim 1, characterized in that: the outward end of the bearing sleeve (207) is provided with a first cylinder (2077), the first cylinder (2077) is in threaded connection with the inner wall of the valve nozzle, the inflating end of the first cylinder is set into a bowl cup surface (2078), and a linear notch (2076) is arranged in the diameter direction of the opening part at the edge of the bowl cup surface (2078);
the bottom of the bowl and cup surface (2078) is provided with a through hole;
the first cylinder (2077) is connected with a second cylinder (2073) with the diameter smaller than that of the first cylinder (2077), a circle of first groove (2074) is arranged on the outer wall of the second cylinder (2073), a socket sealing O-shaped ring (206) is sleeved on the first groove (2074), and the socket sealing O-shaped ring (206) is sealed with the inner wall of the valve nozzle;
an annular groove (2071) is arranged at the outer side of the through hole at the air outlet end of the second cylinder (2073), and a conical convex ring (2072) is arranged at the edge of the annular groove (2071) and the through hole;
and a chamfer (2075) is arranged at the corner of the first cylinder (2077) close to the second cylinder (2073).
3. The coded lock anti-charging valve with the self-closing function according to claim 1, characterized in that: the side wall of a cylinder at one end of the top projection (208) is provided with a plurality of cambered surface grooves (2085) for air inlet, and the outer end part of the cylinder is provided with a straight groove (2087);
the other end of the column body is connected with a disc body (2084), a circle of second groove (2086) is arranged at the position, close to the outer wall of the column body, of the disc body, and a sealing leather cup (209) is sleeved on the second groove (2086);
the center of the surface of the disc body (2084) facing the inflation direction is provided with a convex column part, and the convex column part comprises a lower column (2083) and a long upper column (2081) connected to the middle part of the lower column (2083);
two sides of the outer wall of the long upper column (2081) are respectively provided with a square block (2082), the square blocks (2082) are symmetrically arranged on the long upper column (2081), and the bottom surfaces of the square blocks are fixed on the circular ring surface of the lower column (2083);
and a cylinder at one end of the top projection (208) is arranged in the through hole of the bearing sleeve (207), and can move back and forth at the through hole.
4. The coded lock anti-charging valve with the self-closing function according to claim 3, characterized in that: the diameter of the sealing leather cup (209) is larger than that of the conical convex ring (2072).
5. The coded lock anti-charging valve with the self-closing function according to claim 3, characterized in that: the lower column (2083) is sleeved with a limiting password disk (210), a plurality of first protruding blocks (2102) are arranged on the side wall of the edge of the disk body of the limiting password disk (210), a circular hole is formed in the middle of the disk body, and a limiting disk (211) is accommodated in a first circular groove (2101) formed in the surface, facing the air outlet, of the disk body.
6. A coded lock anti-charging valve with a self-closing function according to claim 1 or 5, characterized in that: the middle part of the plate body of the limiting plate (211) is provided with a first round hole (2111), and a first limiting notch (2112) is arranged on the inner wall of the first round hole (2111) in the diameter direction.
7. The coded lock anti-charging valve with the self-closing function according to claim 1, characterized in that: a circle of third concave ring (2054) is arranged on the outer wall of the head-end password disk (205), a limiting password disk O-shaped ring (204) is sleeved on the third concave ring (2054),
a plurality of first arc-shaped holes (2053) which are not connected with each other and are used for ventilation are arranged on the disc body of the first-end password disc (205), and each first arc-shaped hole (2053) is concentric with the disc body of the first-end password disc (205);
a second round hole is formed in the middle of the disc body of the head-end password disc (205), and a second limiting notch (2051) is formed in the inner wall of the second round hole in the diameter direction;
a second circular groove (2052) is formed in the surface, facing the air inlet direction, of the disc body of the head-end password disc (205), the second circular groove (2052) surrounds the second circular hole and the second limiting notch (2051), is concentric with the second circular hole, is opposite to the first circular groove (2101), and the limiting disc (211) can be accommodated in the second circular groove (2052);
and a second bump (2055) is arranged on the disc body between the second round hole and the first arc-shaped hole (2053) on the face of the head-end password disc (205) facing the air outlet direction.
8. The coded lock anti-charging valve with the self-closing function according to claim 1, characterized in that: the tail-end password disk is a tail-end password disk (203), the outer wall of the disk body of the tail-end password disk is provided with a circle of fourth concave ring (2034), a second password disk O-shaped ring (202) is sleeved on the fourth concave ring (2034),
a plurality of second arc-shaped holes (2031) which are not connected with each other and are used for ventilation are arranged on the disk body of the tail end password disk (203), and each second arc-shaped hole (2031) is concentric with the disk body of the tail end password disk (203);
a third round hole is formed in the middle of the disc body of the tail end password disc (203), and a third limiting notch (2035) is formed in the inner wall of the third round hole in the diameter direction;
a third circular groove (2032) is formed in the surface, facing the air inlet direction, of the end password disk (203), the third circular groove (2032) surrounds the third circular hole and the third limiting notch (2035) and is concentric with the third circular hole, a stop block (2033) is arranged on the annular surface of the third circular groove (2032), the stop block (2033) is used for blocking a convex block on the middle password disk adjacent to the end password disk (203), and the end password disk (203) can rotate to drive the middle password disk to rotate through the stop block (2033);
the end password disk (203) faces to the air outlet direction, a third bump (2036) is arranged on the disk body between the second round hole and the first arc-shaped hole (2053), and the third bump (2036) is driven by the password shaft (212) to rotate back to the initial state.
9. A coded lock anti-charging valve with self-closing function according to claim 1 or 8, characterized in that: the middle password disk and the tail password disk (203) are consistent in structure, the diameter of a circular hole in the middle of the middle password disk corresponds to the diameter of a stepped cylinder on the password shaft (212) one by one, and the alignment grooves on the middle password disk correspond to the column blocks on the password shaft (212) one by one.
10. The coded lock anti-charging valve with the self-closing function according to claim 1, characterized in that: the stepped cylinder on the through hole in the middle of the password shaft (212) is provided with multiple layers, a straight groove (2124) for placing a square (2082) is formed in the diameter direction of the end part of the top cylinder, two column blocks (2123) in the diameter direction of the cylinder are arranged on each stepped ring surface of the stepped cylinder, two T-shaped column blocks (2121) are arranged in the diameter direction of the outer side wall of the bottom cylinder, and the column blocks (2123), the T-shaped column blocks (2121) and the straight groove (2124) are located on one vertical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627885.6A CN110617361B (en) | 2018-06-19 | 2018-06-19 | Coded lock anti-filling valve with self-closing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627885.6A CN110617361B (en) | 2018-06-19 | 2018-06-19 | Coded lock anti-filling valve with self-closing function |
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| Publication Number | Publication Date |
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| CN110617361A true CN110617361A (en) | 2019-12-27 |
| CN110617361B CN110617361B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810627885.6A Active CN110617361B (en) | 2018-06-19 | 2018-06-19 | Coded lock anti-filling valve with self-closing function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828836A (en) * | 2020-07-22 | 2020-10-27 | 宁波麦实科技有限公司 | Anti-disassembly liquefied petroleum gas cylinder valve |
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| CN106641419A (en) * | 2016-11-08 | 2017-05-10 | 深圳市兰洋科技有限公司 | Coded lock valve structure |
| CN206191041U (en) * | 2016-11-08 | 2017-05-24 | 深圳市兰洋科技有限公司 | Trick lock valve structure |
| CN208519294U (en) * | 2018-06-19 | 2019-02-19 | 深圳安博智控科技有限公司 | A kind of coded lock having function of self closing is anti-to fill valve |
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| JP2010019274A (en) * | 2008-07-08 | 2010-01-28 | Koda:Kk | Pack type valve |
| CN205618694U (en) * | 2016-05-09 | 2016-10-05 | 祝达开 | Angle valve and steel bottle |
| CN106641419A (en) * | 2016-11-08 | 2017-05-10 | 深圳市兰洋科技有限公司 | Coded lock valve structure |
| CN206191041U (en) * | 2016-11-08 | 2017-05-24 | 深圳市兰洋科技有限公司 | Trick lock valve structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111828836A (en) * | 2020-07-22 | 2020-10-27 | 宁波麦实科技有限公司 | Anti-disassembly liquefied petroleum gas cylinder valve |
| CN111828836B (en) * | 2020-07-22 | 2022-06-24 | 宁波麦实科技有限公司 | Anti-disassembly liquefied petroleum gas cylinder valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110617361B (en) | 2024-06-07 |
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