JPS5813290A - Ball valve device absorbing and removing outer pressure applied to piping - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention The present invention relates to a ball valve device installed on piping for liquid, gas, etc., which absorbs external pressure such as earthquakes, power machinery, vehicle vibrations, shocks, etc. applied to the piping. It protects the

Conventionally, various types of mail valve devices installed on piping for one fluid have been provided, but the basic structure is shown in FIG.
There is one shown in the figure.

To explain what is shown in FIG. 4 above, the pipe connection section 80.
By connecting the pair of shell bodies al and ag having 80', the mail valve 85 is rotatably inserted into the valve chamber 84 of the integrally formed valve 1i88, and the mail valve 85 is inserted into the stomach side of the valve chamber 84. A ball valve device 89 is constructed by attaching a lever 88 to the outer end of a valve shaft 87 whose inner end is engaged with a pool valve 85 and supported by a sealing material 86° 86 provided in the valve shaft 86.

Because there was no flexibility in the joint direction between the piping and the piping (not shown), when exposed to external pressure such as earthquakes, vibrations from power machinery, vehicles, etc., and shocks from falling heavy objects, etc.
The pressure-bearing part is damaged by denting, bending, or breaking off in the buried soil, and the damaged pipe becomes larger as the pipe ages, and the damage causes leakage of liquid and gas. The damage and danger could be overlooked in many cases, as it was caused by fire, earthquakes, etc.

The object of the present invention is to solve the above-mentioned problems and to flexibly hold pipes in the joint direction in response to earthquakes, vibrations, shocks, and the like.

The basic structure of this invention is that a ball valve and a universal joint pipe are housed in one valve body, and the spherical end of the universal joint pipe is supported on the backing seat of the valve housing via an annular backing. Then, connect this spherical end to the center of the sphere from both sides in the pipe joint direction:
is elastically held in the direction to constitute a flexible gill valve device,
This flexible ball valve device is constructed, and this flexible mail valve device is installed in the middle of a fluid piping such as a liquid or gas, and is used to prevent earthquakes, vibrations from power machinery, vehicles, etc. that are applied to the piping, falling heavy objects, etc. It skillfully absorbs and eliminates shocks and holds the piping stably.

An embodiment of the present invention will be described below with reference to the drawings.

In this embodiment, as shown in FIG. 1 and the first time, the valve V body l
has a cylindrical shape with both ends open, and has a valve chamber 2 and a functional section 8 inside.
A seat 6 with a functional part 8Kll-shaped backing 4 interposed therebetween, and a spring 6.6 and a sealing material on both sides of the seat. , 8 is provided, and the spherical end 12 of the universal joint 11-11 is held and supported between the concave white surfaces 100 of the backing 4. This universal joint pipe 1111 has a flow path 18 for passing fluid such as liquid or gas inside, and has an annular WIA 14 with a spring 6 interposed between the sealing material on the outer peripheral surface and an outer end thereof.
A spring 6' 1116 is installed between the 4-$4
4 and the sealing material interposed in the chamber 9'? The sealing material s is formed into an annular shape with a curved surface 17 corresponding to the spherical surface of the spherical end 18 and a bottom 17 of the spring 6' on the negative surface.
Fi, it consists of a large diameter part 19 corresponding to the ring-shaped open end 1118 of the functional part 8 and a small diameter part 19 provided with several grooves gO, and this sealing material ÷ :; 9:
t; tr=h, Z From tK, it can be attached to the threaded part 2B of the functional part 8. *The valve electric body l shown in + is the threaded part gg'K at one end.
The IFI1 hand 88 is installed, and a sealing material B4. A mail valve 25 is supported via B4', and this ball valve g5 has a flow passage 18' communicating with the flow passage 18 inside, and is connected to the lever 27 on the outside of the valve body 1 by an operating wheel 86. A flexible mail valve device is constructed. FIG. 8 shows another embodiment of the mail valve device M' having an annular groove 28 in its spherical end 12' and a backing 4' attached thereto. When attached in a headband shape and seated on the outer periphery of this backing 4' by a convex curved surface 10' having a T-shaped cross section, the backing 4' is formed to correspond to a 9-to-even shape. Seal material g
4Fi, interposed in the chamber 9) so that the spherical end 1g' is elastically pressed toward the backing 8 side by a spring 6'. Further, an extension line 111 drawn from the center point 0 of the spherical end portions 1B and IB' shown in FIGS. 1 and 8
The range of motion P between 1 and N2 indicates the permissible width in all directions when the valve electric body 1.1 and the pipe connected via the universal joint pipe 11.11 are subjected to external pressure. 11-1
indicates the allowable expansion/contraction length of the universal joint pipe 11111' in the direction of pipe connection.

The valve electric body l of the above-mentioned flexible mail valve device has threaded portions 1 at both ends.
6 and a pipe joint 88 in the middle of a piping for fluid such as liquid or gas, and operate a lever 27 to open and close the channels 1B and 18 leading to the inside of the piping to interrupt the flow of fluid. Although it is different from a normal valve device including the valve device, the piping equipped with this flexible ball valve device is susceptible to vibrations caused by earthquakes, power machinery, vehicles, etc., and weight. When external pressure, such as an impact caused by a falling object, is applied, the part that receives the pressure, or the one to the right of the valve body 1 in Figure 1, is connected to the universal joint pipe 1lFi and the threaded part 15. Together with the piping, it is displaced to the opposite side of the pressurized area. In this case, if the pressurized part is located close to the universal joint pipe 11, the universal joint pipe 1111 rotates around the spherical end 12 inside the concave curved surface lO of the packing lever, so the universal joint pipe 11 is extended. It moves in a range of motion P between 11m 1t i 2 and absorbs external pressure and eliminates destructive force through this movement. In addition, when the pressurized part is at a position away from the valve housing l, the universal joint pipe 11 also expands and contracts by the allowable length in the pipe joint direction against the elasticity of the spring e, centering on the spherical end part 12. Displaces the inside and absorbs and eliminates external pressure. Furthermore, the above-mentioned operation also occurs when the pressurized portion is applied to the piping connected to the left side of the valve housing l, and in other embodiments.

□ This inventor has configured the fIG as described above, so the following □
□□5 -“′・□ (1)-A mail valve and a universal joint pipe with a spherical end are housed in a valve casing, and this valve casing is placed in the middle of the fluid piping, so the piping or When external pressure is applied to the valve bud body, this external pressure is skillfully absorbed by the universal joint pipe to maintain the piping.〇(2) Backing in which the spherical end of the universal joint pipe is interposed in the seat of the valve body Since the universal joint pipe is supported by the external pressure applied to the pipe, the pressure can be avoided by freely displacing the universal joint pipe in the cross-sectional direction and joint direction of the pipe.

(8) Since the valve of the universal joint pipe is elastically mounted in the body chamber using a sealing material with grooves in the small diameter part, the displacement movement of the universal joint pipe is not restrained at all.

(Compared to conventional types, it is flexible in the connection direction of the piping, so the piping can be stably held even under considerable external pressure.)

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of the device of the present invention, FIG. 2 is an enlarged perspective plan view of the sealing material, and FIG. 8 is an example of the company regulations. . □, 6 pickles,
□Yes. Engineering. 1 Ah. (Explanation of symbols of main parts Is 1-11 Valve electric body To-valve Chamber 8----
Functional part 4t4-m-Packing 6----Seat 6t6''-111 Splinder 10---1 Convex curved surface 10'----6 Curved surface 11.1
1--Universal joint tube 12.12--One spherical end 18.18'--One channel gb--Ball valve gs--One groove Patent applicant

Claims (1)

[Claims] (1) Form a valve cylinder body tube with a ball valve in the valve chamber and a universal joint tube with a spherical end in the functional part, and an annular pipe corresponding to the sliding pair in the seat provided in the functional part. A valve body is installed in the middle of the pipe, supporting the sickle-shaped end via a backing, and connecting the universal joint pipe flexibly in the joint direction and cross-sectional direction of the pipe around the spherical end; When external pressure such as vibration or shock is applied to the piping, the elastic function and flexibility of the flexible clasp pipe absorb and eliminate the external pressure applied to the piping. Ball valve device. (The spherical end of the spherical end is provided with a groove in the cross-sectional direction of the wave path.
The universal joint pipe according to claim 1, wherein a backing having a convex curved surface is attached to the groove.