WO2018085980A1

WO2018085980A1 - Valve structure for combination lock

Info

Publication number: WO2018085980A1
Application number: PCT/CN2016/105041
Authority: WO
Inventors: 李斌
Original assignee: 深圳市兰洋科技有限公司
Priority date: 2016-11-08
Filing date: 2016-11-08
Publication date: 2018-05-17

Abstract

A valve structure for a combination lock comprises a valve assembly (1). The valve assembly (1) comprises a valve body (11) provided by an air channel (M). A combination lock assembly (2) is disposed in the valve body (11) in the axial direction of the valve body (11), and comprises a lock plate set (21) capable of axially rotating in the valve body (11) to control the unlocking and locking of the air channel (M). In the valve structure for a combination lock, the lock plate set (21) capable of axially rotating in the axial direction of the valve body (11) is disposed in the valve body (11), and an unlocking mechanism directly or indirectly drives the lock plate set (21) to rotate by corresponding password angles, so that lock plate set (21) rotates by preset password angles and then to enable the air channel (M) to be unlocked or locked; in this way, the objective of limiting or allowing the filling of a filling fluid can be achieved, and the safety of the filling limitation is high, and the operations are simple.

Description

Password lock valve structure

Technical field

[0001] The present invention relates to the field of valve structure technology, and in particular, to a code lock valve structure.

Background technique

[0002] Gases such as liquefied gas, oxygen, hydrogen, and carbon dioxide are commonly used in daily production and life, and these gases are generally flammable, high-pressure, and highly dangerous. Some gases cannot be mixed with other gases, otherwise they can cause serious safety accidents. For example, if the oxygen cylinder is filled with hydrogen, it will cause an explosion when used. Liquefied gas has a large market share in China due to its cleanliness and environmental protection. However, due to its high risk, the accident rate is still high, and in public, in the event of an accident, the hazard will be great.

[0003] At present, liquefied gas is fixedly filled according to safety regulations, but cross-filling is common due to various reasons, which greatly increases safety hazards. There are two types of valves that are controlled to be filled in the market. One is to install a limit filling mechanism in the angle valve, and a high-frequency electronic tag is installed outside the angle valve. The information of the gas bottle is recorded in the high-frequency electronic tag and belongs to it. Customer and other information, in the filling 吋, the high-frequency electronic tag reader on the inflatable gun reads the information in the high-frequency electronic tag on the angle valve to determine whether the customer is allowed to fill, whether the cylinder is allowed to be filled, if Allowing, the electromagnetic coil on the air gun is powered, and the electromagnetic coil generates a magnetic filling mechanism. The advantage of this technology is that the high frequency electronic tag and the limiting filling mechanism can be distinguished by the device. Filling, no human intervention, two disadvantages, 1

The limit filling mechanism in all angle valves is the same. Only high-frequency electronic tags can be used to identify whether there is permission to fill. If a large number of cylinders are copied or cracked, then one can幵Open all the angle valve charging mechanism; 2) The electromagnetic coil is also easy to control, do not need to read the high frequency electronic tag to identify the angle valve identity, directly supply power to the electromagnetic coil, and its magnetic field can also be used in the angle valve The filling mechanism is restricted to charge the cylinder with liquefied gas. The other type of valve is controlled by a password. It uses the password lock principle to lock the valve stem. The valve stem cannot be rotated without opening the password. After the password is correctly turned on, the valve stem can be turned to reach the valve. Purpose, the advantage of this technology is that each valve has a different password, which is very difficult to crack, so the security is very high; the disadvantage is that the password needs to be remembered by the person, and the password is turned according to the dial on the valve. Once the password leaks the valve, it can be snored. This reduces safety and remembers the different passwords for each valve each time, which also causes a lot of trouble for the operation.

technical problem

[0004] An object of the present invention is to provide a code lock valve structure, which aims to solve the problems in the prior art that the existing liquefied gas cylinder valve has poor safety of charging and troublesome operation.

Problem solution

Technical solution

[0005] Embodiments of the present invention provide a password lock valve structure, including a valve assembly, the valve assembly includes a valve body having an air passage, and the valve body is provided with a code lock assembly along the axial direction thereof, and the code lock The assembly includes a set of locks that are axially rotatable within the valve body to control the passage of the air passage.

Further, the combination lock assembly further includes a limit assembly that cooperates with the set of lock pieces to form an axial movement limit.

[0007] Further, the combination lock assembly further includes a lock shaft for driving the lock piece group to axially rotate to control the air passage opening and closing, and the lock shaft and the lock piece group are axially rotated and positioned. connection.

[0008] Further, the bottom end of the valve body has an extension portion connected to the air passage and connectable to the air cylinder, and the locking piece group, the limiting component and the locking shaft are disposed on the Inside the extension.

[0009] Further, the locking piece group includes a first locking piece and a second locking piece which are sequentially stacked in the axial direction of the extending portion, and the first locking piece and the second locking piece respectively respectively A first vent and a second vent are provided.

[0010] Further, the locking piece set further includes a driving locking piece for driving the first locking piece and the second locking piece to perform axial rotation, and the driving locking piece and the locking shaft are rotationally positioned. connection.

[0011] Further, the driving lock piece upper cymbal is provided with a third vent hole for engaging the first vent hole and the second vent hole through the air passage.

[0012] Further, a first magnet, a second magnet, and a third magnet having the same polarity are respectively embedded in the first locking piece, the second locking piece and the driving locking piece, and the first A gap is formed between the locking piece, the second locking piece and the driving locking piece.

[0013] Alternatively, a spring is disposed between the first locking piece, the second locking piece and the driving locking piece, and the spring is used for the first locking piece, the second locking piece and The driving locks form a gap to form a gap. [0014] Further, the driving locking piece has an active blocking post on a side of the first locking piece, and a first driven blocking column protrudes outwardly from opposite sides of the first locking piece. A second driven baffle protrudes from a side of the second locking piece facing the first locking piece, and the active blocking post, the first driven blocking post and the second driven blocking post are resistively engaged.

[0015] Further, the first driven baffle includes a first main driven baffle and a first sub-driven baffle respectively on opposite sides of the first locking piece, and the active baffle And the first primary driven brace is resistively engaged with the second driven brace.

[0016] Further, the limiting component includes a limiting piece abutting against a bottom side of the second locking piece, and the outer edge of the limiting piece is sealed from the inner wall of the extending part.

[0017] Further, the limiting component further includes a positioning shaft that is disposed in the first locking piece, the second locking piece, and the driving locking piece to form a center, and the positioning shaft end is fixed Within the limit slice.

Advantageous effects of the invention

Beneficial effect

[0018] Based on the above technical solution, compared with the prior art, the password lock valve structure proposed by the embodiment of the present invention is provided with an axially rotatable locking piece group along the axial direction of the valve body, and the yoke mechanism is directly or Indirectly driving the locking piece group to rotate the corresponding password angle, so that the locking piece group controls the opening and closing of the air passage after rotating the corresponding password angle, so that the purpose of limiting the filling of the filling fluid or allowing the filling of the filling fluid can be achieved. It limits the safety of filling and is easy to operate.

Brief description of the drawing

DRAWINGS

1 is a schematic cross-sectional view showing a structure of a code lock valve according to an embodiment of the present invention;

2 is a schematic perspective structural view of a lock shaft according to an embodiment of the present invention;

3 is a schematic perspective structural view of a fixing piece according to an embodiment of the present invention;

[0022] FIG. 4 is a perspective view of a three-dimensional schematic diagram of a driving lock piece according to an embodiment of the present invention;

[0023] FIG. 5 is a second perspective view showing the second embodiment of the present invention;

6 is a perspective view of the first locking piece in the embodiment of the present invention;

7 is a second perspective view of the first locking piece in the embodiment of the present invention;

8 is a schematic perspective view of a second locking piece according to an embodiment of the present invention; 9 is a second perspective view of the second locking piece in the embodiment of the present invention.

Embodiments of the invention

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0029] It is to be noted that when an element is referred to as being "fixed" or "in" another element, it can be directly on the other element or possibly the central element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or the same element.

[0030] In addition, it should be noted that the left, right, upper, lower, and the like directions in the embodiments of the present invention are only relative concepts or reference to the normal use state of the product, and should not be considered. It is restrictive. The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0031] As shown in FIG. 1 to FIG. 9 , an embodiment of the present invention provides a password lock valve structure. The code lock valve structure may include a valve assembly 1 , and the valve assembly 1 may include a valve body 11 and a valve plug 12 . The valve stem 13 and the hand wheel 14, wherein the valve body 11 has a through air passage M therein, the valve plug 12 is located inside the upper end of the valve body 11, the outer end of the valve stem 13 is connected to the hand wheel 14, and the bottom end of the valve stem 13 extends into the valve body The upper end of the upper end of the 11 is connected with the valve plug 12, and the valve wheel 13 is driven by the smooth needle or the reverse needle. The valve plug 12 is driven to realize the on-off control of the upper and lower sections of the air passage M. Here, the valve body 11 is provided with a combination lock assembly 2 for controlling the air passage M to be turned on, and the hand wheel 14 is rotated by an automatic shackle mechanism (not shown) and the valve plug 12 is driven by the valve stem 13 In the case of the valve, the handwheel 14 is continuously rotated, and then the code lock assembly 2 is controlled to control the opening and closing of the air passage M, so that the entire lock valve structure can be turned on and off. The combination of the lock assembly 2 and the limit assembly 23, wherein the lock set 21 is disposed along the axial direction of the valve body 11, the lock set 21 can be axially rotated within the valve body 11 After the password angle, the air passage M is controlled to be turned on and off; in addition, the limiting component 23 is also located in the valve body 11 and disposed along the axial direction thereof, and is engaged with the locking piece group 21, so that the locking piece group 21 can be in the valve. The body 11 is linearly moved in a small distance along its axial direction. Therefore, by providing the stopper assembly 23, the axial movement limit of the lock piece group 21 is achieved.

[0032] The code lock valve structure proposed by the embodiment of the present invention, by providing an axially rotatable locking piece group 21 in the axial direction of the valve body 11, directly or indirectly driving the locking piece group 21 to rotate correspondingly by the shackle mechanism Password angle, By controlling the opening and closing of the air passage M by rotating the corresponding locking angle of the locking piece group 21, the filling of the filling fluid or the filling of the filling fluid can be restricted, which limits the filling safety and the operation is simple.

[0033] Further, in the embodiment of the present invention, the combination lock assembly 2 may further include a lock shaft 22 for driving the lock group 21 to rotate axially to control the air passage M to be disconnected, and the lock shaft 22 is at the valve body. 11 is disposed along the axial direction thereof, and the locking shaft 22 extends into the locking piece group 21 to form an axial rotation positioning connection, and the other end is axially rotated and positioned and connected to the valve plug 12, where the locking shaft 22 passes The vented fixing piece 24 is rotatably positioned in the valve body 11, i.e., the lock shaft 22 is axially rotatable, but is not linearly movable in the axial direction. In this embodiment, the corresponding password angle of the hand wheel 14 is rotated by the automatic shackle mechanism. During the rotation process, the valve is first smashed to make the upper and lower sections of the air passage M pass through, and the shaft of the hand wheel 14 is rotated. 22 synchronous axial rotation, the locking shaft 22 drives the locking piece group 2 1 to rotate axially to control the opening and closing of the air passage M. Here, the password angle is preset for the production locking piece group 21吋. Of course, according to the actual situation, in other embodiments of the present invention, the locking piece group 21 can also be directly connected and driven by an automatic shackle mechanism, which is not limited herein.

[0034] In this embodiment, a label is mounted on the password lock valve structure or the gas cylinder, and the label may be a high frequency or ultra high frequency electronic label, a one-dimensional barcode or a two-dimensional code. The label has the password, gas cylinder information, customer and other information of the password lock valve structure. After filling, the tag reader reads the information in the tag to determine whether the cylinder is allowed to be filled. If the filling is allowed, the code in the tag is driven by the shackle mechanism to drive the code lock assembly 2 to rotate axially. The road M is integrated. That is to say, the axial rotation of the code lock assembly 2 by the shackle mechanism can control the opening and closing of the air passage M, thereby achieving the purpose of limiting the filling and avoiding the safety hazard caused by the illegal filling.

[0035] The password lock valve structure proposed by the embodiment of the invention has the following features compared with the prior art:

[0036] 1) The structure of the existing angle valve with the restriction filling mechanism, due to the production and use, can only be done one or several, so that it is easy to crack, and the password lock valve structure proposed by the embodiment of the present invention The structure can be almost the same, as long as the position of the lock block is different, the password can be made different, which makes the number of passwords large and difficult to crack;

[0037] 2) The password lock valve structure proposed by the embodiment of the present invention does not require a digital dial, even if the password is known, it is difficult to open the password lock component 2 because it cannot be located;

3) In the embodiment of the present invention, the password is saved on the label, and the password is obtained by reading the label before starting, so that the operator does not need to remember the password, and the password lock component 2 can be opened by the lock mechanism, and the pair is removed. Human dependence, peers can also be automated. That is to say, since the tag for recording the identity and password cooperates with the combination lock component 2, the cross-filling is effectively controlled, the illegal filling and error filling behavior are eliminated, the safety is improved, and the operation is simple.

[0039] Further, in the embodiment of the present invention, the bottom end of the valve body 11 has an extension portion 112 connectable to a gas cylinder (liquefied gas cylinder, oxygen gas cylinder, etc.) or a pipe, and the extension portion 112 is located at the gas. The bottom end of the track M is connected to the bottom end of the track M. The lock block assembly 2 is disposed in the extension portion 112, that is, the lock piece group 21, the lock shaft 22 and the limit assembly 23 are disposed in the extension portion 112. In the embodiment, the combination lock component 2 can also be disposed in other parts of the valve body 11, such as a side portion, etc., which is not limited herein.

[0040] Further, in the embodiment of the present invention, the locking piece group 21 may include a first locking piece 211 and a second locking piece 212, and the first locking piece 211 and the second locking piece 212 are disposed at the extension portion. The 112 is sequentially stacked and disposed along its axial direction, and the first locking piece 211 and the second locking piece 212 are axially rotatable within the extending portion 112. Here, the first locking piece 211 is provided with a first venting hole 2110, and the second locking piece 212 is provided with a second venting hole 2120 adapted to the first venting hole 211 0. Here, the second venting hole 2120 The first vent hole 2110 is preferably the same vent hole. During the axial rotation of the first locking piece 211 and the second locking piece 212, when the first ventilation hole 211 0 and the second ventilation hole 2120 are vertically aligned, between the first locking piece 211 and the second locking piece 212 The through hole is formed, and the filling fluid can pass between the two; on the contrary, when the first vent hole 2110 and the second vent hole 2120 are completely erroneous, the first locking piece 211 and the second locking piece 212 form a sealing gap. The filling fluid cannot pass through both. Of course, in the other embodiments of the present invention, the above-mentioned locking piece group 21 may further include other numbers of locking pieces, such as three pieces, four pieces, or more pieces, which are not limited herein.

[0041] Further, in the embodiment of the present invention, the locking piece group 21 further includes a driving locking piece 213 for driving the first locking piece 21 1 and the second locking piece 212 to rotate axially, and the driving locking piece 213 is driven. The 213 is preferably located on a side of the first locking piece 211 away from the second locking piece 212, and the driving locking piece 213 is axially rotatably and locatingly connected to one end of the locking shaft 22, that is, the driving locking piece 213 can follow the locking shaft 22 In the other embodiments of the present invention, the locking tab 213 can also be located at other positions, such as the bottom side of the second locking piece 212, etc., here, depending on the actual situation and specific needs. Not limited.

[0042] Further, in the embodiment of the present invention, the driving lock piece 213 is provided with a third vent hole 2130 adapted to the first vent hole 2110 and the second vent hole 2120. The three vent holes 2130 and the first vent holes 2110 and the second vent holes 2120 are preferably the same three vent holes. Here, drive the lock The sheet 213 is adjacent to the first locking piece 211 described above. In the embodiment, when the locking piece 213 drives the first locking piece 211 and the second locking piece 212 to perform axial rotation, the third ventilation hole 2130, the first ventilation hole 2110 and the second ventilation hole 2120 are aligned. The driving piece 213 is formed to penetrate with the first locking piece 211 and the second locking piece 212. Thereafter, the air passage M penetrates, and the filling fluid can pass between the three; conversely, when the third ventilation hole 2130 Between the first vent hole 2110 and the second vent hole 2120, any two of them are completely erroneous or the three cockroaches are completely erroneous, and the locking piece group formed by the three locking pieces forms a block, and thus, the air passage M Blocked, large flow of filling fluid can not pass, that is, fluid filling is not possible. Here, the amount of ventilation flow can be adjusted by adjusting the size of the vent hole overlap on each lock piece.

[0043] Further, in the embodiment of the present invention, the first magnet 211A and the second magnet 212A having the same polarity are respectively embedded in the first locking piece 211, the second locking piece 212 and the driving locking piece 213. And the third magnet 213A, because the driving lock piece 213, the first locking piece 211 and the second locking piece 212 are stacked in the extending portion 112 of the valve body 11, the repulsive action of the third magnet 213A and the first magnet 211A Under the repulsion of the first magnet 21 1A and the second magnet 212A, the gap between the locking piece 213, the first locking piece 211 and the second locking piece 212 is repelled to form a certain gap, and the same limit is passed. The bit assembly 23 is axially linearly displaced from the lock shaft 22 described above. Here, the driving piece 213, the first locking piece 211 and the second locking piece 212 are not penetrated.

(ie, the vent holes are not aligned), when a large flow of fluid is filled, a large flow of the filling fluid will push the locking piece 213, the first locking piece 211 and the second locking piece 212, and the three Adjacent to each other, such that a close seal is formed between the three, and the bottom side edge of the second locking piece 212 is tightly sealed with the top side edge of the limiting component 23, so that a large flow of filling fluid cannot be smoothly achieved. On the other hand, in the gas state, since the locking piece 213, the first locking piece 211 and the second locking piece 212 are spaced apart under the repulsive action of the magnet, the gas source can be from the gap between the three. Outflow to meet the demand for gas. Of course, according to the actual situation and the specific needs, in other embodiments of the present invention, the air passage of the air passage M can be realized by other means, for example, driving the locking piece 213, the first locking piece 211 and the second locking. Springs are added between the sheets 212 (not shown in the drawings) so that the gaps are maintained between the three in the non-filled state, and the three are squeezed by the fluid to form a close seal in the filled state, which is not limited herein.

[0044] Further, in the embodiment of the present invention, the driving locking piece 213 has an active blocking post 2131 facing the side of the first locking piece 211, and the opposite sides of the first locking piece 211 protrude outwardly. a second driven block 212, a second driven block 212 extending outwardly from a side of the second locking piece 212 facing the first locking piece 211 1. In the process of driving the locking piece 213 to drive the first locking piece 211 and the second locking piece 212 to rotate axially, the active blocking post 2131, the first driven blocking post 2111 and the second driven blocking post 2112 can be resisted. Specifically, the first driven baffle 2111 may include a first main driven baffle 2111h and a first sub-driven baffle 2111h respectively located on opposite sides of the first locking piece 211, wherein the active brace 2131 may The first auxiliary driven block 211 lh ' can resist the second driven block 2121. Here, in the process of the above-mentioned shackle mechanism driving the lock shaft 22 to perform the axial rotation, the lock piece 213 is driven to rotate synchronously with the lock shaft 22, and when the lock piece 213 is rotated by a certain angle 吋, the active block of the lock piece 213 is driven. The column 2131 touches and resists the first main driven brace 2111h and drives the first locking piece 211 to rotate axially, and continues to rotate a certain angle 吋, the first sub-driven brace 2111h' touches and resists the second driven block The column 2121 drives the second locking piece 212 to perform axial rotation. Of course, according to the actual situation and the requirements, in other embodiments of the present invention, the driving lock piece 213, the first locking piece 211, and the second locking piece 212 may be coupled and coupled by other means, which is not limited herein.

[0045] In the embodiment of the present invention, when the relative positions of the vent holes and the blocking posts on any one of the locking pieces are changed, the shackle password is also changed, and the number of the vent holes or the blocking posts can be changed. A lot of passwords make the difficulty of cracking the password lock component 2 greatly increased.

[0046] Further, in the embodiment of the present invention, the limiting component 23 may include a limiting piece 231 fixed to the bottom side of the second locking piece 212 and capable of abutting against the same. The outer edge of the limiting piece 231 is sealed to the inner wall of the extending portion 112. Of course, in other embodiments, in the case that the outer edge of any of the locking pieces 213, the first locking piece 2 11 and the second locking piece 212 is sealed with the inner wall of the extending portion 112, the limiting piece 231 can be extended. The inner wall of the portion 112 is not sealed. Here, in the case that the driving lock piece 213, the first locking piece 211 and the second locking piece 212 are not penetrated (ie, the vent holes are not aligned), when a large flow fluid is filled, the filling fluid will push the driving. The locking piece 213, the first locking piece 211 and the second locking piece 212 are arranged in close proximity to each other, so that a close seal is formed between the three, and the bottom side edge of the second locking piece 212 is also limited. The top side edge of the positioning piece 231 is tightly sealed, and the outer edge of the limiting piece 231 is sealed with the inner wall of the extending portion 112, so that a large flow of filling fluid cannot pass through the second locking piece 212 and the limiting piece 231. That is, smooth filling is not possible. In the embodiment, the fourth magnet 231A having the same polarity as the three magnets is preferably embedded in the limiting piece 231, and the fourth magnet 231A and the second magnet 212A are repulsively engaged, that is, in the initial state, The two locking pieces 212 and the limiting piece 231 are repelled to form a space, so that in the gas state, since the locking piece 2 is driven 13. The first locking piece 211, the second locking piece 212 and the limiting piece 231 are spaced apart under the repulsive action of the magnet, so that the air source can flow out from the gap between the four to meet the gas demand. In addition, in the initial state, the driving piece 213, the first locking piece 211, the second locking piece 212, and the limiting piece 231 are spaced apart under the repulsive action of the magnet, and when a small flow fluid is filled, due to the fluid flow rate Small and pushing pressure is small, so it will not push the lock pieces to form a tight seal, so that a small flow of fluid can be filled. However, because the gap for circulation is small, the filling chamber is too long and does not conform to the actual filling. Short-term demand. In other embodiments of the present invention, the fourth magnet 231A may be replaced by a spring, which is not limited herein.

[0047] Further, in the embodiment of the present invention, the limiting component 23 further includes a positioning shaft 232. The positioning shaft 232 is disposed on the driving locking piece 213, the first locking piece 211 and the second locking piece. A central positioning is formed in the 212, and the tail end of the positioning shaft 232 is inserted into the limiting piece 231 to form a fixed position, and the positioning shaft 232 is located to drive the locking piece 213, the first locking piece 211, the second locking piece 212 and the limit position. On the central axis of the sheet 231. It can also be said that the driving piece 213, the first locking piece 211 and the second locking piece 212 are sleeved on the positioning shaft 232 and can be axially rotated thereabout. Here, the positioning shaft 232 is centrally positioned. The utility model avoids the radial displacement of the locking piece 213, the first locking piece 211 and the second locking piece 212, thereby ensuring the accuracy of the axial rotation. Of course, according to the actual situation and the specific requirements, in other embodiments of the present invention, the driving lock piece 213, the first locking piece 211 and the second locking piece 212 may be radially offset to ensure the axial direction. The accuracy of the rotation is not limited here.

[0048] In an embodiment of the invention, the snoring step of the above-described password lock valve structure is as follows:

[0049] The first step: the driving component of the shackle mechanism rotates counterclockwise, indirectly driving the lock shaft 22 to rotate the first password angle by the reverse rotation pin, and the lock shaft 22 drives the lock piece 213 to rotate the reverse pin to drive the lock. The active stop 2 131 on the piece 213 will touch the first main driven block 2111h on the first locking piece 211 after rotating a certain angle, so that the first locking piece 211 will also be driven to rotate the reverse pin, A locking piece 211 continues to rotate counterclockwise, and the first secondary driven stop 211 lh ' on the second locking piece 212 of the second locking piece 212 will be touched, so that the second locking piece 2 12 will also Being driven by the reverse needle;

[0050] The second step: the driving component of the shackle mechanism rotates the second code angle by the second pin, the angle is relatively small, and the first locking piece 211 is driven to rotate the locking piece 213 to drive the 吋 pin, because the angle is relatively small The first locking piece 211 does not drive the second locking piece 212 to rotate; after the first locking piece 211 rotates the second password angle, the first venting hole 2110 of the first locking piece 2 11 and the second locking piece 212 are Two vent holes 2120 are aligned; [0051] The third step: the driving component of the shackle mechanism rotates the third password angle by the reverse stitching, the angle is relatively small, and the driving piece 213 does not drive the first locking piece 211 to rotate, and after rotating the angle, the locking piece is driven The third vent hole 2130 on the 213 is aligned with the first vent hole 2110 of the first locking piece 211 and the second vent hole 2120 of the second locking piece 212. Thereafter, when the fluid is filled into the valve port, the third vent hole is formed. 2130, the first vent hole 2110 and the second vent hole 2120 are aligned, so that the entire air passage M is unblocked, so that the filling fluid can be smoothly filled into the gas cylinder or the pipeline.

[0052] Of course, according to the actual situation and specific needs, in other embodiments of the present invention, the shackle of the above-mentioned password lock valve structure can also be used: the first step is to rotate the needle, the second step is to rotate the needle, the second step The way to use three needles is not limited here.

[0053] In the embodiment of the present invention, if the stoppers of the two adjacent locking pieces are not touched together, when the upper locking piece is rotated, the lower locking piece is caused by the repulsive force of the magnet of the same polarity. There is a gap between the upper locking piece and the upper locking piece, so that the lower locking piece does not rotate, and only the upper locking piece and the lower locking piece are in contact with each other, and the upper locking piece can carry the lower side. The side locking pieces rotate together, thus effectively ensuring the accuracy of the password shackles. Here, the upper side locking piece and the lower side locking piece are only the distinction between the two adjacent locking pieces, that is, in the embodiment, the upper side locking piece and the lower side locking piece can be respectively represented as driving The locking piece 2 13 and the first locking piece 211, or the first locking piece 211 and the second locking piece 212.

The above-mentioned embodiments are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can easily think of each within the technical scope disclosed by the present invention. Such modifications, substitutions and improvements, etc., are intended to be included within the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Claim

[Claim 1] A combination lock valve structure, including a valve assembly, the valve assembly including a valve body having an air passage

The valve body is provided with a code lock assembly along its axial direction, and the code lock assembly includes a lock piece group that is axially rotatable within the valve body to control the air passage to open and close.

[Claim 2] The combination lock valve structure according to claim 1, wherein the combination lock assembly further includes a limit assembly that cooperates with the lock piece group to form an axial movement limit.

[Claim 3] The code lock valve structure according to claim 2, wherein the code lock assembly further includes a lock shaft for driving the lock piece group to axially rotate to control the air passage opening and closing. The lock shaft is axially rotationally coupled to the lock piece set.

[Claim 4] The code lock valve structure according to claim 3, wherein the bottom end of the valve body has an extension portion connected to the air passage and connectable to the gas cylinder, the lock piece group The limit assembly and the lock shaft are disposed in the extension.

[Claim 5] The combination lock valve structure according to claim 4, wherein the locking piece group includes a first locking piece and a second locking piece which are sequentially stacked in the axial direction of the extending portion, A first vent hole and a second vent hole are respectively disposed on the first locking piece and the second locking piece.

The lock lock valve structure according to claim 5, wherein the lock piece set further comprises a driving mechanism for driving the first lock piece and the second lock piece to perform axial rotation a locking piece, the driving locking piece is rotationally positioned and connected to the locking shaft.

[Claim 7] The code lock valve structure according to claim 6, wherein the driving lock piece upper jaw is provided with a passage for the first vent hole and the second vent hole to penetrate the air passage. Third vent.

[Claim 8] The combination lock valve structure according to claim 7, wherein the first lock piece, the second lock piece and the driven lock piece are respectively embedded with the same polarity A magnet, a second magnet and a third magnet are formed with a gap between the first locking piece, the second locking piece and the driving locking piece.

The cipher lock valve structure according to claim 7, wherein a spring is disposed between the first locking piece, the second locking piece and the driving locking piece, and the spring is used for The first locking piece, the second locking piece and the driving locking piece are separated to form a gap.

[Claim 10] The combination lock valve structure according to claim 6, wherein the driving locking piece has an active blocking post on a side of the first locking piece, and the opposite two of the first locking piece a first driven baffle projecting outwardly from a side surface thereof, a second driven baffle projecting from a side of the second locking piece facing the first locking piece, the active baffle, the first A driven brace and a second driven brace resist the fit.

[Claim 11] The code lock valve structure according to claim 10, wherein the first driven stop includes first and second master followers respectively located on opposite sides of the first locking piece a post and a first auxiliary driven baffle, the active baffle is in abutment with the first main driven brace, and the first sub-driven baffle is in abutment with the second driven brace.

The PIN lock valve structure of claim 6 , wherein the limiting component comprises a limiting piece abutting against a bottom side of the second locking piece, the limiting edge of the limiting piece Sealed with the inner wall of the extension.

The code lock valve structure according to claim 12, wherein the limiting component further comprises a first locking piece, the second locking piece and the driving locking piece A centrally positioned positioning shaft is formed, and the positioning shaft tail end is fixed in the limiting piece.