KR19980028091U - Valve - Google Patents

Abstract

The present invention relates to an on-off valve that is installed in the middle of the gas pipeline to control the opening and closing of the flow of gas supplied at a high pressure;

In particular, the valve cap structure of the on-off valve coupled with the flexible feed pipe connected to a predetermined gas mechanism is improved so that the outflow connecting member having the flexible feed pipe screwed on one side is directly screwed with the valve cap without the help of a separate member. By reducing the number of components for gas piping, the purchase cost of parts can be reduced, thereby improving the economics of the entire piping construction, and screwing the outlet connection member combined with the valve cap of the on-off valve and the flexible transfer pipe. Piping construction work with gas appliance is completed by simple operation to reduce the number of assembly work and maximize the simplicity and efficiency of work, and the number of components required for piping construction is reduced, resulting from the combination of parts and parts. By minimizing the risk of leakage of gas generated in the gap, it is possible to minimize the occurrence of gas accidents. It is characterized.

Description

Valve

1 is a partially cut-away longitudinal sectional view showing the structure and installation state of a general on-off valve,

2 is an external perspective view of the present invention,

3 is a longitudinal sectional view of the present invention,

Figure 4 is a partial cutaway longitudinal cross-sectional view showing the installation state of the present invention.

Explanation of symbols on the main parts of the drawings

1: on-off valve 10: valve body

11: entry part 12: valve handle

13 valve shaft 14 ball valve body

20, 200: valve cap 21, 210: exit portion

30: Euro 50, 70, 500: Outflow connecting member

F: Flexible transport pipe M: Main transport pipe

The present invention relates to an on-off valve installed in the middle of the gas pipeline to control the opening and closing of the flow of the gas supplied in a high pressure state, in particular the opening and closing valve of the flexible transfer pipe connected to the gas mechanism without the provision of a separate member It is possible to connect directly to the phase, and the on-off valve to improve the economics and maximize the simplicity and efficiency of the operation due to the reduction of components in gas piping work.

In the case of general gas piping, the main conveying pipe made of metal material along with the construction of the facility is extended to a part of the room to perform piping work, and then a ball valve type on / off valve is installed at the end of the main conveying pipe. In one state, the piping operation is completed by interconnecting the on-off valve and a predetermined gas appliance to be utilized by the user with a flexible transfer tube made of a soft rubber tube and a synthetic resin tube or a predetermined metal tube. By operating the on-off valve in the state, the gas supplied at high pressure through the main transfer pipe is transferred to the gas appliance side or blocked.

On the other hand, a representative example of a conventional on-off valve that is applied as a major component of such a gas pipe is disclosed in Figure 1 of the accompanying drawings, which is a valve body 10 having a gas inlet 11 through which gas enters and The valve cap 20 having the exit portion 21 into which the exit is coupled is mutually coupled, and the entry portion 11 and the exit portion 21 are respectively formed with threaded portions 11a and 21a having the same diameter therethrough. Inside the valve body 10 and the valve cap 20, a ball valve body 14 through which the flow path 30 is formed in one direction is inserted, and the ball valve body 14 has a valve handle 12 having a predetermined shape. The valve shaft 13 rotatable by a predetermined angle is coupled to form an on-off valve (1).

In the drawings, reference numeral 13a denotes a fastening bolt for preventing the valve handle 12 from being easily detached from the valve shaft 13, and 15 denotes a locking hole for controlling the rotation angle of the valve handle 12, P Denotes the packing for airtightness, respectively.

Looking at the installation form of such a conventional on-off valve (1) is as follows.

First, the other end thread 41 of the inflow connecting member 40 in which the main transfer pipe M is screwed to the threaded part 41 on one side, and the thread 11a and the screw formed in the inlet 11 of the valve body 10. The threaded portion 21a formed in the exit portion 21 of the valve cap 20 is screwed to one threaded portion 51 of the first outlet connecting member 50 having the threaded portions 51 formed at both sides thereof. The other side of the threaded portion 51 is connected to a predetermined gas mechanism in a state in which one end of the two-diameter tube 60 having a form in which the diameter of the other end is smaller than the diameter of one end is screwed together. Various piping work for the opening / closing valve 1 is completed by screwing the other thread part 71 of the 2nd outflow connection member 70 which F) is screwed at the other end to the other end of the said diameter pipe 60. It is supposed to be.

At this time, as shown in the above to couple the two diameter pipe 60 between the first and second outflow connecting member 50, 70, the threaded portion formed in each of the valve body 10 and the valve cap 20 ( 11a) and 21a have the same diameter as each other, and the flexible transport pipe F connected to the gas appliance is smaller in diameter than the main transport pipe M, so the flexible transport pipe F is formed. In order to maintain a firm coupling state of the coupling) screw portion having a diameter smaller than the screw portion (21a) formed in the valve cap 20 and the flexible connection pipe (70) coupled to the outlet connection member 70 is coupled to one side mutually Because you have to.

However, some of the following problems have been exposed in the conventional on-off valve 1.

First of all, since a separate two-piece tube 60 must be separately provided with two outflow connecting members 50 and 70 for mutually coupling the opening / closing valve 1 and the flexible conveying pipe F connected to the gas appliance. Increasing the number of components for performing the piping work has a problem that the cost required for the piping work is increased and the economic efficiency is lowered.

In addition, only the first outlet connecting member 50, the second pipe 60, and the second outlet connecting member 70 are sequentially connected to the on / off valve 1 to complete the gas pipe work. There is a risk of gas accidents because the joining work is quite cumbersome and the number of working hours is increased, and the workability during plumbing work is reduced, and the number of components required for assembling pipes increases, so that the incidence of leakage of gas transferred at high pressure increases. There was always a problem remaining.

The present invention has been researched and developed in order to effectively solve the various problems revealed in the structure of the conventional on-off valve as described above, in particular, by improving the valve cap structure of the on-off valve coupled to the flexible transfer pipe connected to a predetermined gas mechanism one side The outflow connection member, which is screwed into the flexible conveying pipe, is screwed directly with the valve cap without the help of a separate member, thereby reducing the purchase cost of parts due to the reduction of the number of components for gas piping. Economics can be improved, and the pipe work with the gas appliance is completed by the simple operation of screwing the outlet connection member combined with the valve cap of the on-off valve and the flexible transfer pipe, thereby reducing the assembly labor and simplicity. And efficiency can be maximized, and the number of components required for piping construction can be reduced, To provide an on-off valve capable of significantly suppressing the generation of gas accidents by minimizing the risk of leakage of the gas generated in the gap due to the sum has that purpose.

Hereinafter, the configuration of the present invention and its effects will be described in detail with reference to the accompanying drawings, and the same parts as in the prior art will be described with the same reference numerals.

That is, according to the present invention, as shown in FIGS. 2 to 4 of the accompanying drawings, the valve cap 200 having the entry part 11 into which gas enters is coupled to each other, and the flow path 30 is disposed in one direction therein. In the conventional opening and closing valve (1) in which the through-formed ball valve body 14 is interpolated so as to control the opening and closing of the gas flow by a predetermined angle rotation operation of the ball valve body 14, In the exit portion 210, the threaded portion 211 is drilled to a diameter smaller than the threaded portion 11a formed in the entry portion 11 of the valve body 10, and connected to the screwed portion 11a and a predetermined gas mechanism. Flexible transfer pipe (F) of the state is configured to be directly screwed to the other side screw portion 510 of the outlet connection member 500 is coupled to one side.

In the drawings, reference numeral 13a denotes a fastening bolt for preventing the valve handle 12 from being easily detached from the valve shaft 13, and 15 denotes a locking hole for controlling the rotation angle of the valve handle 12, P Denotes the packing for airtightness, respectively.

Referring to the effect according to the process of looking at the installation process of the present invention made of such a configuration as follows.

First, the thread 11a and the screw formed in the inlet 11 of the valve body 10 are formed with the other thread 41 of the inflow connecting member 40 in which the main feed pipe M is screwed to the thread 41 on one side. By completing the installation operation of the opening and closing valve (1) to the gas pipe line, and the screw portion 211 formed in the exit portion 210 of the valve cap 200, the flexible transfer pipe (F) connected to a predetermined gas mechanism The valve handle 12 located above the valve body 10 in a state in which all the piping work is completed by directly screwing the other threaded portion 510 of the outlet connection member 500 screwed into this one end. By opening and closing the flow path 30 of the ball valve body 14 by operating, the opening and closing control of the flow of gas supplied at a high pressure is controlled.

At this time, the valve cap 200 constituting the open / close valve 1 and the outflow connection member 500 coupled to the flexible transfer pipe F connected to a predetermined gas appliance side are directly screwed together, Usually, without the need for a separate connection member or coupling member for connecting and coupling the flexible transfer pipe F formed to a diameter smaller than the diameter of the main transfer pipe M constituting the gas pipe to the on / off valve 1 side. The assembly work between the components for the piping construction is simple.

On the other hand, the direct connection of the outlet connection member 500 in a state where the flexible transfer pipe (F) is coupled to the valve cap 200 as described above, the standardized and mass-produced screw portion of the outlet connection member 500 ( This is because the threaded portion 211 is formed in the valve cap 200 in the same manner as the diameter of 510. When the valve cap 200 and the outlet connection member 500 are directly coupled to each other, the diameters of the conventional threaded portions are different. It eliminates the need for separate members provided to mutually connect the outlet connection member to which the valve cap and the flexible transfer pipe are connected, thereby improving the workability of the gas piping construction and reducing the number of components required for the piping construction. It is possible to minimize the occurrence of gaps due to the coupling between components, which is pointed to as the main cause of gas leakage in gas piping.

On the other hand, the present invention as described above is not limited to being applied to the on-off valve 1 in the form of a ball valve, it can be applied to the valve having a variety of forms.

The present invention as described above is to form the on-off valve itself in the form of a two-pipe tube, the flexible transfer pipe connected to the gas mechanism is to be directly coupled on the on-off valve without the use of a separate connecting member, for the construction of gas piping Reduction of the number of components improves the economics in the construction of piping, and the piping work with gas appliances is easily carried out, thereby reducing the number of assembly operations, maximizing the simplicity and efficiency of the work, and reducing the number of components required for the piping construction. By minimizing the gap that occurs when joining parts and parts, the risk of gas accident due to leakage of gas supplied through the pipe is minimized.

Claims (1)

The valve body 10 having the entry portion 11 into which gas enters and the valve cap 200 having the entry portion 210 into which gas enters are coupled to each other and supplied by predetermined control means installed therein. In the normal on-off valve 1 to open and close the flow of the gas to be In the exit portion 210 of the valve cap 200, the screw portion 211 is drilled to a diameter smaller than the screw portion 11a formed in the entry portion 11 of the valve body 10, and the screw portion 211 is formed. And a flexible transfer pipe (F) in a state connected to a predetermined gas mechanism, so that the other side threaded portion (510) of the outlet connection member (500) coupled to one side may be directly screwed together.