CN210141367U

CN210141367U - Close valve that gas tightness is good

Info

Publication number: CN210141367U
Application number: CN201920884251.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shanghai Lusheng Information Technology Co Ltd
Current assignee: Shanghai Lusheng Information Technology Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-03-13
Anticipated expiration: 2029-06-13

Abstract

The utility model belongs to the technical field of the relatively poor technique of leakproofness and specifically relates to a valve that closes that gas tightness is good, the upper end intercommunication of valve body has the connecting pipe, the valve plate has been placed to valve body inside, the upper end fixedly connected with connecting rod of valve plate, the first sealing washer of outside fixedly connected with of valve plate, fixedly connected with is protruding on the connecting pipe, first recess has been seted up to bellied inboard fixed, the both sides of first recess all are connected with the semicircular arc piece through slide mechanism, two equal fixedly connected with a plurality of spring in one side that the semicircular arc piece was carried on the back mutually, the equal fixedly connected with in one side that two semicircular arc pieces are relative is sealed fills up, the second recess has been seted up to the upper end of connecting pipe, the gland has been placed in the second recess, the connecting rod runs through the gland, the gland passes through the bolt fastening. The utility model discloses simple structure is worth promoting.

Description

Close valve that gas tightness is good

Technical Field

The utility model relates to the technical field of valves, especially, relate to a close valve that gas tightness is good.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

The existing gas closed valve is easy to leak gas in the closing process, and the sealing performance is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of poor sealing performance in the prior art and providing a closed valve with good air tightness.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

designing a closed valve with good air tightness, comprising a valve body, wherein the upper end of the valve body is communicated with a connecting pipe, a valve plate is placed in the valve body, the upper end of the valve plate is fixedly connected with a connecting rod, one end of the connecting rod, far away from the valve plate, extends to the outer side of the connecting pipe, the outer side of the valve plate is fixedly connected with a first sealing ring, a bulge is fixedly connected onto the connecting pipe, a first groove is fixedly formed in the inner side of the bulge, two sides of the first groove are both connected with semicircular blocks through a sliding mechanism, the two semicircular blocks form a circular ring block, the connecting rod is positioned between the two semicircular blocks, one side, opposite to each other, of the two semicircular blocks is fixedly connected with a plurality of springs, one end, far away from the semicircular blocks, of each spring is fixed onto the first groove, and one side, opposite to each semicircular block, the connecting pipe is characterized in that a second groove is formed in the upper end of the connecting pipe, a gland is placed in the second groove, the connecting rod penetrates through the gland, the gland is fixed on the connecting pipe through bolts, a third groove is formed in the outer side of the connecting rod and located on the gland, and a second sealing ring is fixedly connected in the third groove.

Preferably, the connecting rod is fixedly connected with a leakage-proof ring at the joint of the connecting rod and the valve plate.

Preferably, the valve plate and the connecting rod are of an integral structure.

Preferably, the diameter of the connecting rod is the same as the bore diameter of the connecting tube.

Preferably, the sliding mechanism comprises a sliding block, the sliding block is fixed on the semicircular block, a sliding groove is formed in one side, located on the sliding block, of the first groove, and one end, far away from the semicircular block, of the sliding block is connected in the sliding groove in a sliding mode.

Preferably, the gasket is a rubber gasket.

The utility model provides a close valve that gas tightness is good, beneficial effect lies in:

1. the semi-arc-shaped block is extruded through the spring, so that a gap between the semi-arc-shaped block and the connecting rod is smaller, the semi-arc-shaped block is sealed through the sealing gasket, gas passing through the valve body cannot overflow, and the air tightness of the valve is enhanced.

Drawings

Fig. 1 is a schematic structural view of a closed valve with good air tightness according to the present invention;

fig. 2 is a schematic top view of the closed valve with good air tightness according to the present invention;

fig. 3 is a schematic sectional structural view of a closed valve with good air tightness according to the present invention.

In the figure: the anti-leakage valve comprises a valve body 1, an anti-leakage ring 2, a valve plate 3, a first sealing ring 4, a connecting rod 5, a connecting pipe 6, a protrusion 7, a first groove 8, a spring 9, a semi-circular arc block 10, a sliding block 11, a sliding groove 12, a sealing gasket 13, a second groove 14, a gland 15, a bolt 16, a third groove 17 and a second sealing ring 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a closed valve with good air tightness comprises a valve body 1, the upper end of the valve body 1 is communicated with a connecting pipe 6, a valve plate 3 is placed inside the valve body 1, the valve plate 3 is used for blocking air or liquid from flowing, the upper end of the valve plate 3 is fixedly connected with a connecting rod 5, the connecting rod 5 is used for driving the valve plate 3 to rotate and controlling the opening and closing of the valve, the valve plate 3 and the connecting rod 5 are of an integral structure, a leakproof ring 2 is fixedly connected to the connecting part of the connecting rod 5 and the valve plate 3, the leakproof ring 2 is used for enhancing the air tightness between the connecting rod 5 and the valve body 1, one end of the connecting rod 5, which is far away from the valve plate 3, extends to the outer side of the connecting pipe 6, the diameter of the connecting rod 5 is the same as the aperture of the connecting pipe 6, the outer side of the valve plate 3 is fixedly connected with a first sealing ring 4, the connecting pipe 6 is fixedly connected with a bulge 7.

The inner side of the bulge 7 is fixedly provided with a first groove 8, the first groove 8 is used for installing a semicircular arc block 10, two sides of the first groove 8 are both connected with the semicircular arc block 10 through a sliding mechanism, the semicircular arc block 10 is used for avoiding gas overflow, the sliding mechanism comprises a sliding block 11, the sliding block 11 is fixed on the semicircular arc block 10, one side of the first groove 8, which is positioned on the sliding block 11, is provided with a sliding groove 12, one end of the sliding block 11, which is far away from the semicircular arc block 10, is connected in the sliding groove 12 in a sliding manner, the two semicircular arc blocks 10 form a circular ring block, the connecting rod 5 is positioned between the two semicircular arc blocks 10, one side, which is opposite to each other, of the two semicircular arc blocks 10 is fixedly connected with a plurality of springs 9, the springs 9 are used for extruding the semicircular arc blocks 10, so that the gap between the semicircular arc blocks 10 and the connecting rod 5 is smaller, the air tightness is, the opposite sides of the two semicircular blocks 10 are fixedly connected with sealing gaskets 13, the sealing gaskets 13 are used for sealing gaps between the semicircular blocks 10 and the connecting rod 5, and the sealing gaskets 13 are rubber sealing gaskets.

Second recess 14 has been seted up to the upper end of connecting pipe 6, gland 15 has been placed in the second recess 14, gland 15's effect is fixed connecting rod 5, connecting rod 5 runs through gland 15, gland 15 passes through bolt 16 to be fixed on connecting pipe 6, third recess 17 has been seted up in the outside that lies in connecting rod 5 on gland 15, fixedly connected with second sealing washer 18 in the third recess 17, the effect of second sealing washer 18 is avoided gaseous gap between gland 15 and the connecting rod 5 to spill over.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The closed valve with good air tightness comprises a valve body (1), wherein the upper end of the valve body (1) is communicated with a connecting pipe (6), and is characterized in that a valve plate (3) is placed in the valve body (1), the upper end of the valve plate (3) is fixedly connected with a connecting rod (5), one end, far away from the valve plate (3), of the connecting rod (5) extends to the outer side of the connecting pipe (6), the outer side of the valve plate (3) is fixedly connected with a first sealing ring (4), a protrusion (7) is fixedly connected onto the connecting pipe (6), a first groove (8) is fixedly formed in the inner side of the protrusion (7), two sides of the first groove (8) are both connected with semicircular blocks (10) through a sliding mechanism, the two semicircular blocks (10) form a circular ring block, and the connecting rod (5) is positioned between the two semicircular blocks (10), two equal fixedly connected with a plurality of spring (9) in one side that semicircle shape piece (10) carried on the back mutually, every spring (9) are kept away from the one end of semicircle shape piece (10) is all fixed on first recess (8), two the equal fixedly connected with of one side that semicircle shape piece (10) is relative seals up (13), second recess (14) have been seted up to the upper end of connecting pipe (6), gland (15) have been placed in second recess (14), connecting rod (5) run through gland (15), gland (15) are fixed through bolt (16) on connecting pipe (6), lie in on gland (15) third recess (17) have been seted up in the outside of connecting rod (5), fixedly connected with second sealing washer (18) in third recess (17).

2. A valve as claimed in claim 1, characterized in that the connecting rod (5) is fixedly connected with a leak-proof ring (2) at the joint with the valve plate (3).

3. A valve as claimed in claim 1, characterized in that said valve plate (3) and said connecting rod (5) are of a single piece construction.

4. A valve closure with good tightness according to claim 1, characterized in that the diameter of said connecting rod (5) is the same as the diameter of the bore of said connecting tube (6).

5. The valve closing mechanism with good air tightness as claimed in claim 1, wherein the sliding mechanism comprises a sliding block (11), the sliding block (11) is fixed on the semi-circular block (10), a sliding groove (12) is formed in one side, located on the sliding block (11), of the first groove (8), and one end, far away from the semi-circular block (10), of the sliding block (11) is slidably connected into the sliding groove (12).

6. A valve closure with improved tightness as claimed in claim 1, characterised in that said gasket (13) is a rubber gasket.