CN211082885U

CN211082885U - Non-repetitive use valve of steel cylinder

Info

Publication number: CN211082885U
Application number: CN201921528982.6U
Authority: CN
Inventors: 林康生
Original assignee: Zhejiang Ansheng Mechanical Manufacture Co ltd
Current assignee: Zhejiang Ansheng Mechanical Manufacture Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-07-24
Anticipated expiration: 2029-09-16

Abstract

The utility model provides a non-repetitive use valve of steel bottle belongs to steel bottle valve technical field. The valve head part of the existing non-repeated filling valve cannot be buffered due to sudden overlarge stress, so that the problem of breakage and the like is solved. The utility model discloses a valve body, the valve head, valve rod and spring, the inside inner chamber that has of valve body, valve head and valve rod set up in the inner chamber, it has gas channel and gas outlet to open on the valve body, gas channel forms the valve port with the inner chamber intercommunication, the one end and the inner chamber intercommunication of gas outlet, the other end is used for the gas appliances intercommunication with the external world, the one end and the valve head butt joint of valve rod, the other end stretches out the valve body and connects the handle, the valve rod is threaded connection with the valve body, realize the closed condition of valve port through rotatory valve rod, the junction of valve rod and valve head is opened there is the jack, the spring sets up in the jack, two corresponding inner walls of jack are the arc. The utility model has the advantages of can reduce the atress of coupling part.

Description

Non-repetitive use valve of steel cylinder

Technical Field

The utility model belongs to the technical field of the steel cylinder valve, a fill dress valve is related to, in particular to non-repeated valve that fills dress.

Background

In the current society, gas technology is continuously developed, and at present, steel cylinder valves on the market are all made by recycling, but the gas in the steel cylinder is still remained after being used up, and when the gas is filled again, the gas and the gas may have chemical reaction to generate adverse effects such as explosion and the like.

Although the illegal repeated use of the steel cylinder has a potential safety hazard, some illegal vendors still leave the psychological illegal repeated use of the steel cylinder. The steel bottle structure is more single, hardly increases the mechanism of preventing repeated use on the steel bottle, but as the supporting valve with the steel bottle, but the easier realization prevents repeated use.

The valve is as the switching device of steel bottle air feed, all utilizes valve head control valve port to open and shut, thereby it drives the valve head and carries out the switching to rotate the valve rod, but when the installation, the assembly dynamics is difficult to hold, causes valve head and valve port cooperation too inseparable easily, both adopt plastic materials often again, in case the cooperation is too tight to make the valve head card die, when follow-up rotation valve rod pre-drive valve head rotates, twist off the valve head easily, the head card that makes the valve head is dead causes the valve inefficacy in valve port department.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of the existing non-repeated filling valve, and providing a non-repeated filling valve which can avoid the breakage of a valve head.

The purpose of the utility model can be realized by the following technical proposal:

a non-repetitious valve of a steel cylinder comprises a valve body, a valve head, a valve rod and a spring, wherein an inner cavity is arranged inside the valve body, the valve head and the valve rod are arranged in the inner cavity, a gas channel and a gas outlet are formed in the valve body, one end of the gas channel is communicated with the inner cavity and forms a valve port at the joint, the other end of the gas channel is used for being in butt joint with a cavity of the steel cylinder, one end of the gas outlet is communicated with the inner cavity, the other end of the gas outlet is used for being communicated with external gas equipment, one end of the valve rod is in butt joint with the valve head, the other end of the valve rod extends out of the valve body and is connected with a handle, the valve rod and the valve body are in threaded connection, the valve head can be driven to move coaxially to plug or open the valve port by rotating the valve rod, a jack is formed in one end, the valve head is characterized by comprising a head part and a rod part, wherein one end of the rod part is fixedly connected with the head part, the other end of the rod part is inserted into the insertion hole, the cross section of the rod part is rectangular, the shape of the insertion hole is matched with that of the rod part, the spring is propped against the insertion end of the rod part and is in a compression state, and two corresponding inner walls of the insertion hole are arc-shaped surfaces.

The edge of the rod part is provided with an arc chamfer.

When the valve rod drives the rod part to rotate, the two arc inner walls of the insertion hole are attached to the two diagonal edges acting on the rod part.

The outer side wall of the valve rod is provided with an annular groove, and the rubber ring is arranged in the annular groove.

The rod part is provided with a pin hole which vertically penetrates through the rod part, the valve rod is provided with a positioning hole which vertically penetrates through the valve rod, and a pin shaft penetrates through the pin hole and the positioning hole to string the rod part and the valve rod.

The valve body forms a necking at the extending port of the valve rod, and the necking prevents the valve rod from being drawn out of the valve body.

Compared with the prior art, the two corresponding inner walls of the insertion holes are arranged to be arc-shaped surfaces, so that the friction force borne by the valve head part when a user twists the handle can be effectively reduced, and the situation that the valve head part is broken due to overlarge stress can be avoided; valve head portion and the inseparable laminating of gas channel mouth, through the travel elongation of twist grip with the spring, the pressure of spring to the valve head can reduce so, comes the valve head jack-up through high-pressure gas's in the bottle thrust simultaneously, and gas will come out along the valve port like this, enters into in the gas appliances through the gas outlet. The valve head and the valve port are tightly attached, so that good sealing performance is guaranteed, gas is not easy to leak, and safety accidents are avoided.

Drawings

Fig. 1 is an isometric view of an example of the present invention;

FIG. 2 is a schematic diagram of the internal structure of an example of the present invention;

FIG. 3 is a cross-sectional schematic view of a valve stem and head.

In the figure, 1, a valve body; 2. a valve head; 3. a valve stem; 4. a spring; 5. a rubber ring; 6. a jack; 7. a gas channel; 8. an air outlet; 9. a handle; 10. a pin shaft; 11. an arc-shaped surface; 12. chamfering; 21. a head portion; 22. a stem portion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-3, the valve comprises a valve body 1, a valve head 2, a valve rod 3, a spring 4 and a rubber ring 5, wherein the valve rod 3 and the valve head 2 are connected with an inner cavity of the valve body 1 through threads. Valve rod 3 one end is connected with valve head 2, and the other end stretches out valve body 1 and connects handle 8, is equipped with jack 6 at the connecting portion of valve rod 3 and valve head 2, and the one end of spring 4 is installed in jack 6 shown. The lower end of the valve body 1 is provided with a gas channel 7, and the gas channel opening 7 (namely the valve opening) and the valve head 2 can be tightly attached, so that good sealing performance is ensured. Meanwhile, the side wall of the valve body 1 is provided with an air outlet 8, and the air is directly transmitted to external air equipment through the air outlet 8.

The valve head 2 comprises a head part 21 and a rod part 22, one end of the rod part 22 is fixedly connected with the head part 21, the other end of the rod part 22 is inserted into the insertion hole 6, the spring 4 is pressed against the insertion end of the rod part 22 and is in a compression state, two corresponding inner walls of the insertion hole 6 are arc-shaped surfaces 11, and the edge of the rod part 22 is provided with an arc-shaped chamfer 12.

The cross section of the rod part 22 is rectangular, the shape of the insertion hole 6 is matched with that of the rod part, the rod part 22 is provided with a pin hole which vertically penetrates through the rod part 22, the valve rod 3 is provided with a positioning hole which vertically penetrates through the valve rod 3, and a pin shaft 10 penetrates through the pin hole and the positioning hole to string the rod part 22 and the valve rod 3.

Before using, round pin axle 10 is stringed pole portion 22 and valve rod 3, and valve rod 3 assembles the back that targets in place, rotates valve rod 3, and valve rod 3 drives valve head 2 downstream, makes valve head 2 tightly stop in valve port department, continues to rotate valve rod 3, because valve head 2 is obstructed, valve head 2 and valve rod 3 take place relative motion, twist off round pin axle 10, and valve head 2 keeps in shutoff valve port state.

When the valve is used, the rotary handle 9 drives the valve head 2 to rotate through the matching relation of the rod part 22 and the insertion hole 6, and the valve head 2 is loosened from the valve port after rotating. The valve rod 3 rises, the elasticity of the spring 4 is reduced, when the pressure in the steel cylinder is larger than the elasticity of the spring 4, the valve head 2 is jacked up until the valve head is in a balanced state, the valve port is opened, and gas enters gas using equipment through the gas outlet 8. After the air is used, the rotating handle 9 is screwed, the spring 4 is compressed, and the valve head 2 is pressed against the valve opening again to finish closing.

Since the pin 10 is twisted off and the valve body forms a necking at the extending opening of the valve rod, the valve rod 3, the valve head 2 and the like cannot be detached for reuse. When gaseous exhaust in the bottle, valve head 2 supports all the time under the effect of spring and plugs in valve opening department, when people want to aerify in to the steel bottle from gas outlet 8, high-pressure gas only can fill in valve head 2 top to can compress the valve head 2 more tightly, the valve head 2 also is more inseparable with the laminating of valve opening more, therefore the steel bottle also can't reuse.

Two inner walls of the insertion hole 6 are arc-shaped surfaces, and once the assembly force is excessive, the valve head 2 can rotate relative to the valve rod 3 integrally and cannot be broken. When the valve rod 3 is withdrawn and rotated, the valve head 2 is driven to rotate and withdraw.

It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended manner, i.e. in a manner equivalent to "including at least … …", and not in a closed manner, i.e. in a manner not to be interpreted as "including … … only".

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A non-repetitious valve of a steel cylinder comprises a valve body, a valve head, a valve rod and a spring, wherein an inner cavity is arranged inside the valve body, the valve head and the valve rod are arranged in the inner cavity, a gas channel and a gas outlet are formed in the valve body, one end of the gas channel is communicated with the inner cavity and forms a valve port at the joint, the other end of the gas channel is used for being in butt joint with a cavity of the steel cylinder, one end of the gas outlet is communicated with the inner cavity, the other end of the gas outlet is used for being communicated with external gas equipment, one end of the valve rod is in butt joint with the valve head, the other end of the valve rod extends out of the valve body and is connected with a handle, the valve rod and the valve body are in threaded connection, the valve head can be driven to move coaxially to plug or open the valve port by rotating the valve rod, a jack is formed in one end, the valve head is characterized by comprising a head part and a rod part, wherein one end of the rod part is fixedly connected with the head part, the other end of the rod part is inserted into the insertion hole, the cross section of the rod part is rectangular, the shape of the insertion hole is matched with that of the rod part, the spring is propped against the insertion end of the rod part and is in a compression state, and two corresponding inner walls of the insertion hole are arc-shaped surfaces.

2. The non-reusable valve of claim 1, wherein the stem portion has an arcuate chamfer at the edge.

3. A non-reusable valve for a cylinder as claimed in claim 1 or claim 2, wherein the two arcuate inner walls of the socket abut against the two diagonal edges of the stem portion when the stem portion is rotated by the valve stem.

4. A non-reusable valve for a cylinder as claimed in claim 1 or claim 2 wherein the outer side wall of the valve stem is provided with an annular groove and the rubber ring is located in the annular groove.

5. The non-reusable valve of claim 1 or 2, wherein the stem portion has a pin hole extending vertically through the stem portion, the valve stem has a positioning hole extending vertically through the valve stem, and a pin shaft extends through the pin hole and the positioning hole to string the stem portion and the valve stem.

6. A non-reusable valve for a cylinder as claimed in claim 1 or claim 2, wherein the valve body is formed with a constriction at the extension of the valve stem, the constriction preventing the valve stem from being withdrawn from the valve body.