CN201661708U

CN201661708U - Check valve of meter connector

Info

Publication number: CN201661708U
Application number: CN2009202072047U
Authority: CN
Inventors: 陈文风
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-23
Filing date: 2009-11-23
Publication date: 2010-12-01
Anticipated expiration: 2019-11-23

Abstract

The utility model relates to a check valve of a meter connector, installed in front of a gas meter. The check valve comprises a valve cap connector, a ball body, a valve seat, a sealing port ring, a valve rod, a filler and a screw plug that are respectively connected with a valve body, wherein an inner check ring and the valve cap connector are connected to keep off a valve plug; a handle is connected with the valve rod; and a shaft check ring and the valve cap connector are connected to keep off a nut. The check valve is characterized in that a valve switch, a one-way valve and the meter connector are combined as a whole, and the meter connector and the valve cap are integrated as one to form the valve cap connector. The check valve has the advantages as follows: the two-in-one structural design leads to simple structure, saves materials, reduces the sealing link for combination of parts, thoroughly solves the sealing problem due to adoption of two parts, and improves the installation quality and efficiency of pipelines. The check valve has the function of one-way check.

Description

The meter connector check valve

Affiliated technical field

The utility model relates to the pressure piping element, and affiliated valve field is a kind of valve before the gas meter on the gas pipeline that is installed in, and can cross the control that gas meter carries out on-off to gas flow.

Background technique

At present, in the area of using rock gas, gas company has been each home fuel gas user installation gas meter, so that it is used how much measuring of combustion gas, yet in traditional gas pipeline installation process, to the mounting type of gas meter is inlet end at gas meter, after adopting a straight-through ball valve and a meter connector being connected, be connected with the inlet end of gas meter again, thereby reach the break-make control of gas flow when the gas meter, this traditional Placement has more the place mouth that is threaded between valve and meter connector, this interface seals with unsintered tape, it can make bubble-tight rate of fault increase, and this interface has also increased the cost of processing and assembling, takes a lot of work, time-consuming, take material, cost is higher.In addition, in order to prevent that the user is when connecting gas water-heater, the direction of water inlet and air inlet is connect instead, causing has water in the gas pipeline and can not use, there is the part gas company to increase an one-way valve separately in the joint of gas meter, because of the used valve of traditional piping erection does not have non-return valve function, therefore be necessary above-mentioned this Placement and structure are improved.

Summary of the invention

The utility model is in order to overcome in the installation of gas pipeline, the gas meter early gate is installed the deficiency that connects, a kind of meter connector check valve is provided, the structural design that it unites two into one has promptly replaced two parts with a part, has both made the short and small compactness of valve monnolithic case size, save material, also reduced simultaneously the sealing part of part combination, thoroughly solved sealing problem, and in piping erection, improved the quality of sealing and the efficient of installation because of adopting two parts to bring.The utility model also is connected the function that an end has increased one-way valve at valve with gas meter, ball valve and one-way valve are become one structure, and can prevent that water can enter in user's the gas pipeline, causes out of use loss to the user after water inlet and air inlet connect instead.

The technological scheme that its technical problem that solves the utility model adopts is: meter connector (16) is united two into one into valve gap joint (2) with valve gap (13), promptly replace two parts with a part, valve plug (15) and inner shield ring (14) have been installed in the valve gap joint, increased non-return valve function (as Fig. 1), be connected with gas meter on the cylndrical surface of an end, process the groove of an assembling shaft block ring, earlier nut (11) is passed circlip groove during assembling, use a standard piece back-up ring again, be that shaft block ring (10) blocks nut, the minor diameter of thread size of nut just can be by the outside dimension of shaft block ring, and the back stomidium of nut is less than the external diameter of shaft block ring, and by the unthreaded hole part of thread Pilot hole tail end, restriction shaft block ring (10) can pastly radially not increase and the slippage inefficacy, thereby reaches nut (11) is connected stressed sealing with gas meter purpose.

The feature of meter connector check valve described in the utility model is: 1. the overall structure (as Fig. 1) that meter connector (16) and valve gap (13) is united two into one into valve gap joint (2).2. be equipped with circlip for shaft being connected an end with gas meter.3. be furnished with valve plug (15) and inner shield ring (14) being connected an end with gas meter, have non-return valve function.4. valve switch, one-way valve, meter connector are the structure of one.

The beneficial effects of the utility model are, the structural design that it unites two into one, simple in structure, both made the short and small compactness of valve monnolithic case size, save material, also reduced simultaneously the sealing part of part combination, thoroughly solved airtight quality problem because of adopting two parts to bring, the quality and the efficient of piping erection have been improved greatly, and on valve, increased the function of one way stop peturn valve, can prevent the user when connecting gas water-heater, as intake and after air inlet connects instead, causing because of the out of use loss of water is arranged in the gas pipeline.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model embodiment's a structural drawing, and promptly meter connector and valve gap unite two into one, and has the structural drawing of check function.

Fig. 2 is the schematic representation that disperses part before improving.

1. valve bodies among the figure, 2. valve gap joint, 3. spheroid, 4. valve seat, 5. sealed mouth circle, 6. valve rod, 7. filler, 8. plug screw, 9. handle, 10. shaft block ring, 11. nuts, 12. seal rings, 14. inner shield rings, 15. valve plugs.

13. valve gaps among Fig. 2,16. meter connectors.

Embodiment

In Fig. 1, valve gap joint 2, spheroid 3, valve seat 4, sealed mouth circle 5, valve rod 6, filler 7, plug screw 8 is connected with valve body 1 respectively, 4 pairs of spheroids 3 of valve seat have seal action, 7 pairs of valve rods 6 of filler have seal action, handle 9 is connected with valve rod 6, valve plug 15 is packed into earlier behind the valve gap joint 2, with inner shield ring 14 valve plug 15 is blocked again, shaft block ring 10 is with before valve gap joint 2 is connected, earlier nut 11 is passed circlip groove, connecting shaft block ring 10 again blocks nut 11, the minor diameter of thread size of nut 11 just can be by the outside dimension of shaft block ring 10, and by the unthreaded hole part of thread Pilot hole tail end, restriction shaft block ring 10 can slippage be lost efficacy toward radially increasing, thereby reached nut 11 is connected stressed sealing with gas meter purpose.Under normal state of ventilation, gas flows from the top down, and valve plug 15 drops on back-up ring 14 upper limits by thrust and its deadweight of gas, and gas passes through from the valve plug 15 and the circumference space of valve gap joint 2.When fluid was mobile from opposite direction, its valve plug 15 moved upward under the promotion of fluid, and the valve port place of valve gap joint 2 is sealed by the endoporus guiding of valve gap joint 2, thereby stoped the fluid continuation mobile.

Claims

1. meter connector check valve, valve gap joint (2), spheroid (3), valve seat (4), sealed mouth circle (5), valve rod (6), filler (7), plug screw (8) are connected with valve body (1) respectively, handle (9) is connected with valve rod (6), inner shield ring (14) is connected with valve gap joint (2) valve plug (15) is blocked, shaft block ring (10), seal ring (12) are connected with valve gap joint (2), shaft block ring (10) blocks nut (11), it is characterized in that: the overall structure that valve switch, one-way valve, meter connector are integrated.

2. meter connector check valve according to claim 1 is characterized in that: meter connector and valve gap unite two into one into the overall structure of valve gap joint (2).

3. meter connector check valve according to claim 1 is characterized in that: be equipped with circlip for shaft being connected an end with gas meter.

4. meter connector check valve according to claim 1 is characterized in that: be furnished with valve plug (15) and inner shield ring (14) being connected an end with gas meter, have non-return valve function.