CN104633185B - Multifunctional combined valve - Google Patents

Abstract

The invention discloses a multifunctional combined valve. The multifunctional combined valve comprises a pipe-shaped valve body, wherein a flow intercepting component is arranged in one end of the pipe-shaped valve body; a filtering valve is arranged on a side wall of the pipe-shaped valve body; a pressure releasing valve is arranged on the other side wall, corresponding to the filtering valve, on the pipe-shaped valve body; the filtering valve and the pressure releasing valve are communicated with the inner part of the pipe-shaped valve body. The multifunctional combined valve integrates unidirectional flow interception, filtering and pressure leakage functions, and has the advantages of ingenious and reasonable design, small volume, safety and reliability and the like.

Description

A multifunctional combination valve

technical field

The invention relates to the technical field of liquid transmission valve components, in particular to a multifunctional combination valve.

Background technique

In some special environments, such as the liquid pipelines involved in wall-hung boilers and heat pump units, three valves with different functions, one-way shut-off valve, filter valve and pressure relief valve, must be used. When used in combination, it takes up a lot of space, is difficult to assemble, and the line connection is complicated, and the connection joints are prone to leakage, which causes great inconvenience to maintenance and repair.

Contents of the invention

The purpose of the present invention is to provide a multi-functional combined valve integrating three functions of one-way interception, filtration and pressure relief. The multi-functional combined valve also has the advantages of ingenious and reasonable structure, small size, safety and reliability.

The technical solution adopted by the present invention to solve the technical problem is: a multifunctional combination valve, including a tubular valve body, a one-way intercepting member is arranged inside one end of the tubular valve body, and a filter valve is arranged on the side wall of the tubular valve body, A pressure relief valve is arranged on the other side wall of the tubular valve body opposite to the filter valve, and both the filter valve and the pressure relief valve communicate with the interior of the tubular valve body.

Further, the included angle between the filter valve and a section of tubular valve body where the one-way shut-off member is located is 120-150 degrees, and the included angle between the pressure relief valve and a section of tubular valve body where the one-way shut-off member is located is 30° ~60 degrees.

Further, the above-mentioned is 145 degrees, and the included angle between the pressure relief valve and a section of tubular valve body where the one-way intercepting member is located is 45 degrees.

Further, the one-way blocking member includes an upper valve seat, a lower valve seat and a valve arranged between the upper valve seat and the lower valve seat, the upper valve seat and the lower valve seat are respectively provided with a liquid outlet and a liquid inlet, and the upper valve seat and the lower valve seat are respectively opened with a liquid outlet and a liquid inlet. The middle part of the valve seat is provided with a spring cushion, and a shut-off spring is arranged between the valve and the spring cushion. The valve is blocked at the liquid inlet under the action of the shut-off spring and opens or closes the liquid inlet with the axial expansion and contraction of the shut-off spring.

Further, the valve is provided with a guide post perpendicular to the valve, and the spring cushion is provided with an upper guide hole for the upper end of the guide post to extend into and slide into, and the shut-off spring is set on the guide post.

Further, the guide post runs through the thickness direction of the valve, and a guide seat is provided in the middle of the lower valve seat, and a lower guide hole is opened on the guide seat for the lower end of the guide post to extend into and slide into fit.

Further, the filter valve includes a filter sleeve and a handle filter valve. The handle filter valve is composed of a cylindrical filter screen and a handle. The filter sleeve is arranged obliquely on the side wall of the tubular valve body and connected to the tubular valve body. The interior is connected, the handle filter valve is screwed into the filter outer casing, and a guide channel is opened between the liquid outlet on the upper valve seat and the cylindrical filter net.

Further, the pressure relief valve includes a pressure relief outer sleeve and a pressure relief valve outer body, the pressure relief outer sleeve is arranged obliquely on the side wall of the tubular valve body and communicates with the interior of the tubular valve body, and the outer body of the pressure relief valve The inner end is screwed into the pressure relief outer casing and communicated with the pressure relief outer casing. The inner end of the outer body of the pressure relief valve is provided with a liquid inflow channel, and the outer end is provided with an end cap. The end cap is provided with a liquid outflow channel. There is a plug inside the outer body of the valve, and a pressure relief spring is set between the plug and the end cover. The plug is blocked at the liquid inflow channel under the action of the pressure relief spring and opens or Close the liquid inflow channel.

Compared with the prior art, the present invention has the following advantages:

1. The multi-function combination valve of the present invention integrates three functions of one-way interception, filtration and pressure relief. The structure is ingenious and reasonable, and the volume is small and exquisite, which can effectively save space and cost. It saves too many connection nodes, reduces the risk of connection node leakage, and has safe and reliable performance.

2. Both the filter valve and the pressure relief valve are screw-mounted on the tubular valve body. This detachable connection method is convenient for installation and maintenance.

Description of drawings

Fig. 1 is a structural schematic diagram of a multifunctional combination valve of the present invention.

As shown in the figure: 1. Tubular valve body 2, one-way shut-off member 3, filter valve 4, pressure relief valve 5, upper valve seat 6, lower valve seat 7, valve 8, liquid outlet 9, liquid inlet 10, spring pad Seat 11, cut-off spring 12, guide post 13, upper guide hole 14, guide seat 15, lower guide hole 16, filter outer sleeve 17, handle filter valve 18, cylindrical filter screen 19, handle 20, diversion channel 21, drain Pressure outer casing 22, pressure relief valve outer body 23, liquid inflow channel 24, liquid outflow channel 25, plug 26, pressure relief spring 27, gasket one 28, O-ring seal one 29, circlip 30, O-ring seal Ring 2 31, gasket 2 32, O-ring 3 33, union 34, union nut 35, end cover α, angle β between the filter valve and a section of tubular valve body where the one-way shut-off member is located, drain The included angle between the pressure valve and a section of tubular valve body where the one-way shut-off member is located.

detailed description

The present invention will be further elaborated below by means of the accompanying drawings and examples.

As shown in FIG. 1 : a multifunctional combined valve, including a tubular valve body 1 . One end of the tubular valve body 1 is provided with a one-way blocking member 2 inside. A filter valve 3 is arranged on the side wall of the tubular valve body 1 . A pressure relief valve 4 is provided on the other side wall of the tubular valve body 1 opposite to the filter valve 3 . Both the filter valve 3 and the pressure relief valve 4 communicate with the inside of the tubular valve body 1 .

The included angle α between the filter valve 3 and a section of tubular valve body 1 where the one-way shut-off member 2 is located is 120 to 150 degrees, and the included angle between the pressure relief valve 4 and a section of tubular valve body 1 where the one-way shut-off member 2 is located β is 30-60 degrees. In this embodiment, the included angle α between the filter valve 3 and a section of tubular valve body 1 where the one-way shut-off member 2 is located is 145 degrees, and the pressure relief valve 4 and a section of tubular valve body 1 where the one-way shut-off member 2 is located The included angle β is 45 degrees. Through the reasonable design of the angle, the liquid can flow more smoothly in the valve.

The one-way blocking member 2 includes an upper valve seat 5 , a lower valve seat 6 and a valve 7 arranged between the upper valve seat 5 and the lower valve seat 6 . A liquid outlet 8 and a liquid inlet 9 are opened on the upper valve seat 5 and the lower valve seat 6 respectively. The middle part of the upper valve seat 5 is provided with a spring cushion seat 10 . A shut-off spring 11 is arranged between the valve 7 and the spring cushion 10, and the valve 7 is blocked at the liquid inlet 9 under the action of the shut-off spring 11 and opens or closes the liquid inlet 9 with the axial expansion and contraction of the shut-off spring 11. When the bottom of the valve 7 is opened by the impact force of the liquid, the cut-off spring 11 is compressed, and the liquid flows in from the liquid inlet 9 and flows out from the liquid outlet 8. When the liquid flows in the opposite direction, the valve 7 is always closed due to the action of the cut-off spring 11 It is in the closed state to realize the function of one-way interception.

A guide column 12 perpendicular to the valve 7 is arranged on the valve 7 . The spring cushion 10 is provided with an upper guide hole 13 for the upper end of the guide post 12 to extend into and slide into, and the shut-off spring 11 is sleeved on the guide post 12 . The guide post 12 cooperates with the above guide hole 13 to guide the valve, so that the valve 7 moves back and forth without deviation and improves the performance of the entire combined valve.

In order to make the valve 7 more stable when moving back and forth, in this embodiment, the guide column 12 runs through the thickness direction of the valve 7, and the middle part of the lower valve seat 6 is provided with a guide seat 14, and the guide seat 14 is provided with a lower end for the guide column 12. Stretch into and slide fit the lower guide hole 15.

In addition, a sealing gasket 1 27 is provided at the part where the lower end surface of the valve 7 is in contact with the liquid inlet 9 on the lower valve seat 6 . In order to improve the sealing performance between the lower valve seat 6 and the tubular valve body 1 , an O-ring 28 is installed between the outer wall of the lower valve seat 6 and the inner wall of the tubular valve body 1 . The bottom of the lower valve seat 6 is provided with a circlip 29 which can effectively prevent the lower valve seat 6 from breaking away from the tubular valve body 1 .

The filter valve 3 includes a filter outer sleeve 16 and a handle filter valve 17 . Handle filter valve 17 is made up of cylindrical filter screen 18 and handle 19 two parts. The filter outer sleeve 16 is arranged obliquely on the side wall of the tubular valve body 1 and communicates with the interior of the tubular valve body 1 . The handle filter valve 17 is screwed into the filter outer casing 16. A guide channel 20 is opened between the liquid outlet 8 on the upper valve seat 5 and the cylindrical filter 18 . After the liquid flows out from the liquid outlet 8, it flows into the cylindrical filter 18 through the diversion channel 20, and then flows out from the side net of the cylindrical filter 18, thereby realizing the function of filtering.

In addition, in order to improve the sealing performance between the handle 19 and the filter outer sleeve 16 , an O-ring 2 30 is installed between the outer wall of the handle 19 and the inner wall of the filter outer sleeve 16 .

The pressure relief valve 4 includes a pressure relief outer casing 21 and a pressure relief valve outer body 22 . The pressure relief sleeve 21 is arranged obliquely on the side wall of the tubular valve body 1 and communicates with the interior of the tubular valve body 1 . The inner end of the pressure relief valve outer body 22 is screwed into the pressure relief outer sleeve 21 and communicated with the pressure relief outer sleeve 21. The inner end of the pressure relief valve outer body 22 is provided with a liquid inflow channel 23, and the outer end is provided with an end cap 35 . A liquid outflow channel 24 is opened on the end cap 35 . A plug 25 is arranged inside the outer body 22 of the pressure relief valve. A pressure relief spring 26 is arranged between the plug 25 and the end cover 35, and the plug 25 is blocked at the liquid inflow channel 23 under the action of the pressure relief spring 26 and opens or closes the liquid inflow with the axial expansion and contraction of the pressure relief spring 26. Channel 23. A sealing gasket 2 is provided at the part where the upper end surface of the plug 25 is in contact with the liquid inflow channel 23 . When the hydraulic pressure inside the tubular valve body 1 is too high, the liquid will impact the end face of the plug 25, so that the plug 25 is separated from the liquid inflow channel 23, and the liquid inflow channel 23 is opened, the pressure relief spring 26 is compressed, and the liquid flows from the liquid into the channel 23 When the internal hydraulic pressure of the tubular valve body 1 returns to a safe value, the plug 25 resumes blocking the liquid inflow channel 23 under the action of the pressure relief spring 26, so as to realize the function of pressure relief.

In addition, in order to improve the sealing performance between the outer body 22 of the pressure relief valve and the outer casing 21 of the pressure relief valve, an O-ring 3 32 is installed between the outer wall of the outer body 22 of the pressure relief valve and the inner wall of the outer casing 21 of the pressure relief valve. .

The outer wall of one end of the tubular valve body 1 where the one-way shut-off member 2 is located is provided with an external thread, and the other end of the tubular valve body 1 is installed with a union nut 34 through a joint 33 . When the multifunctional combination valve of the present invention is installed, it is connected in the corresponding pipeline through the external thread and the union nut 34 .

The multi-functional combination valve of the present invention integrates three functions of one-way interception, filtration and pressure relief. It has an ingenious and reasonable structure and a small volume, which can effectively save space and cost. Excessive connection nodes are removed, reducing the risk of leakage at the connection joints, and the performance is safe and reliable; both the filter valve 3 and the pressure relief valve 4 are screw-mounted on the tubular valve body 1, and this detachable connection method is convenient for maintenance and repair .

The above description is based on the embodiment as inspiration, and through the above description content, relevant workers can completely make various changes and modifications within the scope of not departing from the idea of the invention. The technical scope of the present invention is not limited to the content in the description, and the scope of protection must be determined according to the scope of the claims.

Claims (7)

1. a kind of Multifunctional combined valve, it is characterised in that：Including tubular valve body, one end of tubular valve body is internally provided with unidirectional cutting Stream component, strainer valve is provided with the side wall of tubular valve body, is provided with opposite side wall relative with strainer valve on tubular valve body Relief valve, strainer valve and relief valve are connected with the inside of tubular valve body；The unidirectional closure member includes upper valve base, lower valve base And the valve between upper valve base and lower valve base is arranged on, liquid outlet is offered respectively on upper valve base and lower valve base and liquid enters Mouthful, spring base is provided with the middle part of upper valve base, the spring that dams is provided between valve and spring base, valve is in the spring that dams In the presence of get lodged at liquid inlet and as the axial stretching of the spring that dams opens or closes liquid inlet.

2. a kind of Multifunctional combined valve according to claim 1, it is characterised in that：The strainer valve and unidirectional closure member Angle between one section of tubular valve body at place is 120~150 degree, relief valve and one section of tubular valve where unidirectional closure member Angle between body is 30~60 degree.

3. a kind of Multifunctional combined valve according to claim 1, it is characterised in that：The strainer valve and unidirectional closure member Angle between one section of tubular valve body at place is 145 degree, relief valve and one section of tubular valve body where unidirectional closure member it Between angle be 45 degree.

4. a kind of Multifunctional combined valve according to claim 1, it is characterised in that：It is provided with the valve and is hung down with valve Straight lead column, the upper pilot hole that the upper end being provided with spring base for lead column is stretched into and is slidably matched, dam spring housing In lead column.

5. a kind of Multifunctional combined valve according to claim 4, it is characterised in that：Thickness of the lead column through valve Direction, is provided with guide holder in the middle part of lower valve base, the lower end offered on guide holder for lead column is stretched into and is slidably matched down Pilot hole.

6. a kind of Multifunctional combined valve according to claim 1, it is characterised in that：The strainer valve includes filtering outer tube With handle strainer valve, handle strainer valve is made up of tubular screen pack and handle two parts, and filtering outer tube is angularly disposed in tubulose Connected on the side wall of valve body and with the inside of tubular valve body, handle strainer valve spiral shell is fitted into filtering outer tube, the liquid on upper valve base Body is exported and offers flow-guiding channel and tubular screen pack between.

7. a kind of Multifunctional combined valve according to claim 1, it is characterised in that：The relief valve includes pressure release outer tube With relief valve ectosome, pressure release outer tube is angularly disposed to be connected on the side wall of tubular valve body and with the inside of tubular valve body, pressure release The inner spiral shell of valve ectosome is fitted into pressure release outer tube and is connected with pressure release outer tube, and the inner of relief valve ectosome offers liquid flow Enter passage, outer end is provided with end cap, offer liquid outflow channel on end cap, relief valve ectosome is internally provided with plug, blocks up Pressure release spring is provided between head and end cap, plug is got lodged at liquid feed channel and with pressure release in the presence of pressure release spring The axial stretching of spring opens or closes liquid feed channel.