CN219102123U

CN219102123U - Exhaust valve group

Info

Publication number: CN219102123U
Application number: CN202223597477.1U
Authority: CN
Inventors: 韩安伟; 胡玉平
Original assignee: Anhui Redstar Valve Co Ltd
Current assignee: Anhui Redstar Valve Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-30
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses an exhaust valve group, which belongs to the technical field of valves and comprises a mounting valve, wherein a valve cavity is arranged in the mounting valve, an inlet and an outlet are formed in the left end and the right end of the valve cavity, a valve core assembly is arranged in the valve cavity, the valve core assembly can seal the outlet in a rotating mode, a connecting port is arranged above the valve cavity, a communication valve is arranged above the connecting port, an air valve is arranged above the communication valve, and the air valve can exhaust or supplement air to the valve cavity. The exhaust valve group provided by the utility model can realize the on-off of a pipeline and the exhaust or air supplement of the pipeline, and a plurality of valves are of integrated design, so that the exhaust valve group is convenient to install and maintain.

Description

Exhaust valve group

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to an exhaust valve group.

Background

When the existing valve is applied to a pipeline, the valve generally only plays a role in switching on and off equipment or the pipeline, the air valve is mainly arranged at the high point of the water pipeline and used for discharging gas in the pipeline, when the gas overflows from the water pipeline, the gas enters the air valve cavity along the pipeline and gathers at the upper part of the air valve, the pressure rises along with the increase of the gas in the valve, when the pressure of the gas is higher than the pressure of a system, the gas can lower the water surface in the air valve cavity, the floating ball descends along with the water level, and the exhaust port is opened; after the air is exhausted, the water level rises, and the floating ball rises along with the rising of the water level, so that the air outlet is closed. In the same way, when negative pressure is generated in the system, the water surface in the air valve cavity is lowered, the air outlet is opened, and the outside atmospheric pressure is larger than the pressure of the system, so that the atmosphere can enter the system through the air outlet, and the pipeline is prevented from generating negative pressure. In the prior art, the valves are independently acted, the integration is not carried out, the installation efficiency is lower, meanwhile, the valves are independently required to be disassembled and assembled in the replacement and maintenance processes, the operation is more troublesome, the disassembly and the assembly cannot be integrally carried out, and the maintenance efficiency is lower.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide an exhaust valve group, which aims to solve the problems that in the prior art, a valve and an air valve are independently arranged in a pipeline, so that the assembly and the disassembly are troublesome and the installation efficiency is low.

In order to achieve the above purpose, the utility model provides an exhaust valve group, which comprises a mounting valve, wherein a valve cavity is arranged in the mounting valve, an inlet and an outlet are arranged at the left end and the right end of the valve cavity, a valve core component is arranged in the valve cavity, the valve core component can seal the outlet in a rotating way, a connecting port is arranged above the valve cavity, a communication valve is arranged above the connecting port, an air valve is arranged above the communication valve, and the air valve can exhaust or supplement air to the valve cavity.

Furthermore, the installation valve is an eccentric half ball valve, a communication pipeline is arranged above the connecting port, the communication valve is installed above the communication pipeline, and the communication valve is in a normally open state.

Still further, the exit is equipped with the elasticity disk seat, elasticity disk seat lateral wall still is equipped with spacing pin, spacing pin card is established in the spacing groove of exit.

Still further, the elastic valve seat comprises an annular valve seat, a sealing ring is arranged on the outer wall of the annular valve seat, a compression spring which is abutted to the side wall of the limiting groove is arranged on the side wall of the annular valve seat, and the compression spring has a trend of pushing the annular valve seat to axially move.

Still further, the air valve lateral wall still is equipped with back flush air valve, back flush air valve is equipped with first interface and second interface, first interface with the air valve inside intercommunication, the second interface with communicating pipe intercommunication.

Still further, the air valve is including being located the installation base of communication valve upper end, the installation base lateral wall is equipped with the blowoff valve, the installation base upper end is equipped with the air valve body, the inside air valve pocket that is equipped with of air valve body, be equipped with supporting seat and floater in the air valve pocket, the air valve body upper end is equipped with the valve gap, be equipped with the gas vent on the valve gap, the gas vent top is equipped with the exhaust cover, the floater reciprocates can break-make the gas vent.

Furthermore, the back flushing air valve also comprises an exhaust valve, a filter is arranged at the bottom of the exhaust valve, and a connecting hose communicated with the first interface and the second interface is arranged below the filter.

Furthermore, valves for controlling the on-off of the first interface and the second interface are respectively arranged on the connecting hose.

Still further, the case subassembly is including the valve rod, be equipped with the seal seat on the valve rod, be equipped with sealed apron and sealing member on the seal seat, be equipped with first draw-in groove on the seal seat, be equipped with the second draw-in groove on the sealed apron, first draw-in groove with the cooperation of second draw-in groove forms the spacing constant head tank of sealing member installation.

Compared with the prior art, the technical scheme of the utility model has the advantages that the pipeline can be opened and closed by the installation valve, the communication valve is arranged above the installation valve, the air valve is arranged above the communication valve, the air valve can supplement air and exhaust air to the valve cavity in the installation valve, the valves are integrated, the function integration is realized, the whole assembly and disassembly can be realized, the installation efficiency is higher, and the maintenance is convenient; meanwhile, the elastic valve seat is arranged in the mounting valve, so that the valve core assembly can have a good sealing effect in sealing, and the limiting pin is arranged, so that the elastic valve seat is convenient to mount and position; in addition, the side wall of the air valve is also provided with a back flushing air valve and a blow-down valve, so that the interior of the air valve is conveniently cleaned.

Drawings

FIG. 1 is a schematic diagram of an exhaust valve block according to the present utility model;

fig. 2 is a schematic structural view of an air valve of the exhaust valve group provided by the utility model;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

fig. 4 is a partial enlarged view at B in fig. 1.

The corresponding structure of each numerical mark in the attached drawings is as follows: 1-mounting valve, 11-valve cavity, 12-inlet, 13-outlet, 131-limit groove, 14-valve core component, 141-valve rod, 142-sealing seat, 143-sealing cover plate, 144-sealing piece, 1421-first clamping groove, 1431-second clamping groove, 15-connecting port, 16-communication pipeline, 17-elastic valve seat, 171-annular valve seat, 172-sealing ring, 173-compression spring, 18-limit pin, 2-communication valve, 3-air valve, 31-mounting base, 32-blow-off valve, 33-air valve body, 34-air valve cavity, 35-supporting seat, 36-floating ball, 37-valve cover, 371-exhaust port, 38-exhaust cover, 4-back flush air valve, 41-first interface, 42-second interface, 43-exhaust valve, 44-filter, 45-connecting hose and 46-valve.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides an exhaust valve set for realizing on-off of a pipeline and exhaust and air supply of the pipeline, which comprises a mounting valve 1, wherein a valve cavity 11 is arranged in the mounting valve 1, an inlet 12 and an outlet 13 are arranged at the left end and the right end of the valve cavity 11, a valve core assembly 14 is arranged in the valve cavity 11, the valve core assembly 14 rotates to seal the outlet 13, the on-off of the pipeline is controlled through the valve core assembly 14, a connecting port 15 is arranged above the valve cavity 11 for realizing the air supply and the exhaust of the valve cavity 11, a communication valve 2 is arranged above the connecting port 15, an air valve 3 is arranged above the communication valve 2, and the air valve 3 can exhaust or supply the air to the valve cavity 11.

Specifically, in this embodiment, the installation valve 1 is an eccentric half ball valve, a communication pipe 16 is disposed above the connection port 15, the communication valve 2 is installed above the communication pipe 16, and the communication valve 2 is in a normally open state, where the communication valve 2 is a gate valve and can be used to communicate or block the installation valve 1 and the air valve 3.

In order to improve the sealing effect of the installation valve 1, an elastic valve seat 17 is arranged at the outlet 13, and in order to facilitate the installation and the limiting of the elastic valve seat 17, a limiting pin 18 is further arranged on the side wall of the elastic valve seat 17, and the limiting pin 18 is clamped in a limiting groove 131 at the outlet 13. Specifically, the elastic valve seat 17 includes an annular valve seat 171, a sealing ring 172 is disposed on an outer wall of the annular valve seat 171, a compression spring 173 abutting against a side wall of the limiting groove 131 is disposed on a side wall of the annular valve seat 171, the compression spring 173 has a tendency of pushing the annular valve seat 171 to move axially, and the limiting pin 18 can slide in the limiting groove 131 to limit when the annular valve seat 171 moves under the action of the elastic force of the compression spring 173. Specifically, the valve core assembly 14 is used for sealing the annular valve seat 171, and includes a valve rod 141, a sealing seat 142 is disposed on the valve rod 141, the valve rod 141 can drive the sealing seat 142 to rotate, a sealing cover plate 143 and a sealing member 144 are disposed on the sealing seat 142, wherein the sealing member 144 is made of rubber or silica gel, for installing the sealing member 144 conveniently, a first clamping groove 1421 is disposed on the sealing seat 142, a second clamping groove 1431 is disposed on the sealing cover plate 143, and the first clamping groove 1421 and the second clamping groove 1431 cooperate to form a positioning groove for limiting installation of the sealing member 144.

The air valve 3 is used for air supplementing and exhausting of the whole exhaust valve group and comprises a mounting base 31 positioned at the upper end of the communication valve, a blow-off valve 32 is arranged on the side wall of the mounting base 31, an air valve body 33 is arranged at the upper end of the mounting base 31, an air valve cavity 34 is arranged in the air valve body 33, a supporting seat 35 and a floating ball 36 are arranged in the air valve cavity 34, wherein a guide hole is arranged on the supporting seat 35, a guide rod is arranged at the bottom of the floating ball 36, and the floating ball is convenient to limit when moving up and down; the upper end of the air valve body 33 is provided with a valve cover 37, the valve cover 37 is provided with an exhaust port 371, an exhaust cover 38 is arranged above the exhaust port 371, and the floating ball 36 moves up and down to switch on and off the exhaust port 371 so as to realize exhaust or air supplement.

In order to clean the air valve 3 conveniently, a back flushing air valve 4 is further arranged on the side wall of the air valve 3, the back flushing air valve 4 is provided with a first interface 41 and a second interface 42, the first interface 41 is communicated with the interior of the air valve 3, and the second interface 42 is communicated with the communicating pipeline 16. The back flushing air valve 4 further comprises an exhaust valve 43, a filter 44 is arranged at the bottom of the exhaust valve 43, the exhaust valve 43 can be prevented from being polluted by impurities, a connecting hose 45 communicated with the first connector 41 and the second connector 42 is arranged below the filter 44, and for conveniently controlling the on-off of the first connector 41 and the second connector 42, a valve 46 for controlling the on-off of the first connector 41 and the second connector 42 is arranged on the connecting hose 45. In the back flushing process, the communication valve 2 is closed, water enters the air valve cavity 34 from the second connector 42 through the communication hose 45 from the first connector 41, the air valve is internally flushed, and after flushing, the blow-off valve 32 is opened for blow-off, so that the structure is simple, and the cleaning is convenient.

When the exhaust valve set provided by the utility model is used, the exhaust valve set can be arranged at the outlet of a pipeline, an inlet 12 is communicated with the interior of the pipeline, a medium is switched on and off by arranging a valve 1, the communication valve 2 is in a normally open state, when gas overflows from a water conveying pipeline, the gas enters an air valve cavity along the pipeline to be gathered at the upper part of an air valve, the pressure rises along with the increase of the gas in the valve, when the pressure of the gas is higher than the pressure of a system, the gas can enable the water surface in the air valve cavity to drop, and a floating ball descends along with the water level to open an exhaust port; after the air is exhausted, the water level rises, and the floating ball rises along with the rising of the water level, so that the air outlet is closed. Similarly, when negative pressure is generated in the system, the water surface in the air valve cavity is lowered, the air outlet is opened, and the external atmospheric pressure is larger than the pressure of the system at the moment, so that the air can enter the system through the air outlet to prevent the pipeline from generating negative pressure.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. An exhaust valve group, characterized in that: including installation valve (1), installation valve (1) inside is equipped with valve pocket (11), both ends are equipped with import (12) and export (13) about valve pocket (11), be equipped with case subassembly (14) in valve pocket (11), case subassembly (14) rotate sealedly export (13), valve pocket (11) top is equipped with connector (15), connector (15) top is equipped with intercommunication valve (2), intercommunication valve (2) top is equipped with air valve (3), air valve (3) can be right valve pocket (11) are discharged or are mended air.

2. The exhaust valve group as recited in claim 1, wherein: the installation valve (1) is an eccentric half ball valve, a communication pipeline (16) is arranged above the connecting port (15), the communication valve (2) is installed above the communication pipeline (16), and the communication valve (2) is in a normally open state.

3. The exhaust valve group as recited in claim 1, wherein: the outlet (13) is provided with an elastic valve seat (17), the side wall of the elastic valve seat (17) is also provided with a limit pin (18), and the limit pin (18) is clamped in a limit groove (131) at the outlet (13).

4. The exhaust valve group as recited in claim 3, wherein: the elastic valve seat (17) comprises an annular valve seat (171), a sealing ring (172) is arranged on the outer wall of the annular valve seat (171), a compression spring (173) is arranged on the side wall of the annular valve seat (171) and is abutted to the side wall of the limiting groove (131), and the compression spring (173) has a trend of pushing the annular valve seat (171) to move axially.

5. The exhaust valve group as recited in claim 2, wherein: the side wall of the air valve (3) is also provided with a back flushing air valve (4), the back flushing air valve (4) is provided with a first interface (41) and a second interface (42), the first interface (41) is communicated with the inside of the air valve (3), and the second interface (42) is communicated with the communicating pipeline (16).

6. The exhaust valve group as recited in claim 1, wherein: the air valve (3) is including being located installation base (31) of intercommunication valve upper end, installation base (31) lateral wall is equipped with blow off valve (32), installation base (31) upper end is equipped with air valve body (33), air valve body (33) inside is equipped with air valve cavity (34), be equipped with supporting seat (35) and floater (36) in air valve cavity (34), air valve body (33) upper end is equipped with valve gap (37), be equipped with gas vent (371) on valve gap (37), gas vent (371) top is equipped with exhaust cover (38), floater (36) reciprocate can break-make gas vent (371).

7. The exhaust valve group as recited in claim 5, wherein: the back flush air valve (4) further comprises an exhaust valve (43), a filter (44) is arranged at the bottom of the exhaust valve (43), and a connecting hose (45) communicated with the first connector (41) and the second connector (42) is arranged below the filter (44).

8. The exhaust valve group as recited in claim 7, wherein: the connecting hose (45) is provided with a valve (46) for controlling the on-off of the first interface (41) and the second interface (42) respectively.

9. The exhaust valve group as recited in claim 1, wherein: the valve core assembly (14) comprises a valve rod (141), a sealing seat (142) is arranged on the valve rod (141), a sealing cover plate (143) and a sealing piece (144) are arranged on the sealing seat (142), a first clamping groove (1421) is arranged on the sealing seat (142), a second clamping groove (1431) is arranged on the sealing cover plate (143), and the first clamping groove (1421) and the second clamping groove (1431) are matched to form a positioning groove for limiting installation of the sealing piece (144).