CN215763474U

CN215763474U - Flow regulating check valve

Info

Publication number: CN215763474U
Application number: CN202122021456.4U
Authority: CN
Inventors: 毛礼国
Original assignee: Taizhou Jing'an Pipe Industry Co ltd
Current assignee: Taizhou Jing'an Pipe Industry Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-02-08
Anticipated expiration: 2031-08-25

Abstract

The utility model relates to a flow control check valve relates to the valve field, it includes the valve body, the valve body includes inlet tube and outlet pipe, be provided with support piece in the valve body, set up the water trough that supplies rivers to pass through on the support piece, sliding connection has the piece of opening and close on the support piece, the piece of opening and close is used for controlling the break-make of inlet tube and outlet pipe, be provided with the elastic component between piece of opening and close and the support piece, the elasticity of elastic component orders about the piece of opening and close and slides to the inlet tube direction, be provided with the regulation structure of adjusting the distance between support piece and the piece of opening and close in the valve body. This application has through adjusting the structure adjust support piece and the distance size between the piece that opens and shuts, adjusts the flexible distance of elastic component promptly to the adjustment is opened and is opened the gap size that rivers pass through when the piece opened, and then is favorable to adjusting the flow size in the check valve, reduces the effect of check valve's limitation.

Description

Flow regulating check valve

Technical Field

The application relates to the field of valves, in particular to a flow regulating check valve.

Background

The check valve belongs to the automatic valve category, also known as check valve, backflow valve or isolation valve, and is provided with an opening and closing member in the check valve, and the opening and closing member is opened or closed by the force of medium flow to prevent the medium from flowing backwards, and the check valve can be divided into a lifting check valve, a swing check valve and the like according to different movement modes.

The opening and closing piece inside the check valve in the related art only acts by the self weight and the pressure of the medium, the medium flows in from the inlet end and flows out from the outlet end, when the pressure of the inlet is larger than the sum of the weight of the valve clack and the flow resistance of the valve clack, the valve is opened, otherwise, the valve is closed when the medium flows backwards.

In view of the above-mentioned related art, the inventor believes that the flow rate of the medium in the check valve is mainly determined by the weight of the valve flap, and cannot be adjusted, which is highly limited.

SUMMERY OF THE UTILITY MODEL

In order to be able to adjust the flow of the medium in the check valve, reduce the limitation of check valve, this application provides a flow control check valve.

The application provides a flow control check valve adopts following technical scheme:

the utility model provides a flow control check valve, includes the valve body, the valve body includes inlet tube and outlet pipe, be provided with support piece in the valve body, the last water trough that supplies rivers to pass through of offering of support piece, sliding connection has the piece of opening and close on the support piece, the piece of opening and close is used for controlling the break-make of inlet tube and outlet pipe, be provided with the elastic component between piece of opening and close and the support piece, the elasticity of elastic component orders about the piece of opening and close and slides to the inlet tube direction, be provided with the regulation structure of adjusting the distance between support piece and the piece of opening and close in the valve body.

Through adopting above-mentioned technical scheme, through setting up support piece, open and close a sliding connection on support piece and the break-make of control inlet tube and outlet pipe, support piece and open and close set up the elastic component between the piece and order about the piece and slide to the inlet tube direction, adjust support piece and the distance size between the piece through adjusting the structure, adjust the flexible distance of elastic component promptly, thereby the adjustment is opened and is closed the gap size that rivers pass through when opening, and then be favorable to adjusting the flow size in the check valve, reduce the limitation of check valve.

Optionally, the adjusting structure comprises an internal thread arranged on the inner side wall of the water outlet pipe, the internal thread is arranged along the circumferential direction of the valve body, and an external thread connected with the internal thread is arranged on the outer side wall of the supporting piece along the circumferential direction.

Through adopting above-mentioned technical scheme, through setting up the internal thread in the pipe wall in the valve body, the support piece lateral wall sets up the external screw thread, support piece and outlet pipe threaded connection, through rotating support piece, and then can adjust the distance between support piece and the piece that opens and shuts.

Optionally, it is protruding that the regulation structure includes fixed connection in the annular of valve body inside wall, the bellied inside wall of annular has seted up along the rivers direction and has link up the bellied logical groove of annular, fixedly connected with fixture block on the support piece lateral wall, fixture block sliding connection is in leading to the inslot, the fixture block can be through sliding and leading to the groove separation, the annular is protruding to set up the draw-in groove of a plurality of different degree of depth on the lateral wall of inlet tube, the draw-in groove be used for with the fixture block joint, the fixture block can be through sliding support piece and draw-in groove separation.

Through adopting above-mentioned technical scheme, protruding through setting up the annular to set up the draw-in groove that leads to groove and the different degree of depth on the annular is protruding, slide support piece to the inlet tube direction and break away from logical groove back until the fixture block, rotate support piece, go into the fixture block card in the draw-in groove, fix support piece in shifting over to the draw-in groove of the different degree of depth through with the fixture block, and then can adjust the distance between opening and closing piece and the support piece.

Optionally, the fixture blocks are symmetrically provided with a plurality of groups, and the number of the clamping grooves corresponding to the fixture blocks is provided with a plurality of groups.

Through adopting above-mentioned technical scheme, through setting up a plurality of fixture blocks of symmetric distribution, and the multiunit draw-in groove that corresponds the fixture block, and then can promote support piece and pass through the stability of fixture block joint in the draw-in groove when fixed.

Optionally, a support plate is fixedly connected to the inside of the water inlet pipe, a through hole is formed in the support plate for water circulation, a guide rod is fixedly connected to the end portion, facing the direction of the water inlet pipe, of the opening and closing member, and the guide rod is connected with the support plate in a sliding mode.

Through adopting above-mentioned technical scheme, through setting up the backup pad to set up the guide bar on opening and close the piece, guide bar sliding connection is in the backup pad, and then leads to the slip direction of opening and close the piece through guide bar and backup pad, reduces the condition that opening and close the piece and take place the skew in the slip process.

Optionally, the opening and closing member includes a valve element and a valve rod, the valve element is used for controlling the on-off of the water inlet pipe and the water outlet pipe, the valve rod is used for being connected with the supporting member in a sliding manner, the side wall of the valve element is arranged in an inclined manner, the side wall of the valve element is inclined towards the inner wall of the valve body along the water flow direction, the shape of the end part, close to the opening and closing member, of the water inlet pipe is arranged corresponding to the shape of the valve element, a sealing ring is arranged on the side wall of the valve element, and the sealing ring is used for increasing the sealing performance between the water inlet pipe and the opening and closing member.

Through adopting above-mentioned technical scheme, through the case that sets up the lateral wall slope to the tip that makes the inlet tube be close to the case is corresponding with the shape of case, and sets up the sealing washer on the case lateral wall, and then can promote the compactness of case and inlet tube laminating, improves the leakproofness of sealing washer.

Optionally, a collar is fixed to the end of the valve core away from the water inlet pipe.

Through adopting above-mentioned technical scheme, set up the rand through the tip of keeping away from new water pipe in the case, and then can avoid the case to take place because of the too big and dead condition of inlet tube card of resilience force of elastic component.

Optionally, a buffer pad is arranged on the inclined side wall of the water inlet pipe.

Through adopting above-mentioned technical scheme, through set up the blotter on the slope lateral wall in the inlet tube, and then reduce the condition that the opening and closing piece suffered the damage because of the resilience force of elastic component collides with the inlet tube.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging the supporting piece, the opening and closing piece is connected to the supporting piece in a sliding mode, the elastic piece is arranged between the opening and closing piece and the supporting piece, and then the distance between the supporting piece and the opening and closing piece is adjusted through the adjusting structure, namely the telescopic distance of the elastic piece is adjusted, so that the size of a gap through which water flows when the opening and closing piece is opened is adjusted, the flow in the check valve is favorably adjusted, and the limitation of the check valve is reduced;

the support body is connected to the valve body through the internal threads and the external threads in a threaded manner by arranging the internal threads distributed along the circumferential direction of the inner side wall of the valve body and the external threads distributed along the circumferential direction of the outer side wall of the support body, and further, the distance between the opening and closing piece and the support piece can be adjusted by rotating the support body;

through set up the backup pad in the inlet tube, set up the guide bar on the opening and closing piece, guide bar sliding connection is in the backup pad, and then the guide bar plays the guide effect to the slip of opening and closing piece, reduces opening and closing piece and takes place the skew in the slip in-process.

Drawings

Fig. 1 is a cross-sectional view of a flow regulating check valve according to a first embodiment of the present application.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a sectional view of a flow control check valve according to a second embodiment of the present application.

Fig. 4 is a schematic structural view of a valve body in the second embodiment of the present application.

Fig. 5 is a schematic structural diagram of a supporting member in the second embodiment of the present application.

Description of reference numerals: 1. a valve body; 2. a water inlet pipe; 21. a cushion pad; 22. a support plate; 221. a through hole; 3. a water outlet pipe; 4. an opening and closing member; 41. a valve core; 411. fixing grooves; 412. a sealing groove; 413. a collar; 414. a guide bar; 42. a valve stem; 5. a support member; 51. a water trough; 52. a retainer ring; 6. a spring; 7. a flange plate; 8. a seal ring; 9. an adjustment structure; 91. an external thread; 92. an internal thread; 93. an annular projection; 94. a through groove; 95. a card slot; 96. and (7) clamping blocks.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The first embodiment is as follows:

the embodiment of the application discloses flow control check valve. Referring to fig. 1, flow control check valve includes valve body 1, valve body 1 includes inlet tube 2 and outlet pipe 3, the axis of inlet tube 2 and outlet pipe 3 is located same straight line, sliding connection has the break-make that opens and close 4 and be used for controlling inlet tube 2 and outlet pipe 3 in valve body 1, be provided with the support piece 5 that supplies to open and close 4 sliding connection in valve body 1, support piece 5 and open and close and be provided with the elastic component between 4, the elastic component orders about to open and close 4 and slides to inlet tube 2 direction.

The end part of the water inlet pipe 2 far away from the water outlet pipe 3 is integrally fixed with a flange 7, the flange 7 is used for being connected with other pipelines, and the end part of the water outlet pipe 3 far away from the water inlet pipe 2 is also integrally fixed with a flange 7 used for being connected with other pipelines.

The opening and closing part 4 comprises a valve core 41 and a valve rod 42, the valve core 41 is positioned on one side of the opening and closing part 4 close to the water inlet pipe 2, the valve rod 42 is positioned on one side of the opening and closing part 4 close to the water outlet pipe 3, the length direction of the valve rod 42 is arranged along the axial direction of the water inlet pipe 2, the end face of the valve core 41 facing the valve rod 42 is provided with a fixing groove 411, and the valve rod 42 is fixedly connected to the middle part of the bottom of the fixing groove 411. The end of the stem 42 remote from the core 41 is slidingly connected to the support 5. The elastic component is spring 6, and spring 6 cup joints outside valve rod 42, and spring 6's both ends butt respectively in the terminal surface of fixed slot 411 tank bottom and support piece 5 towards inlet tube 2, and spring 6's elasticity orders about opening and closing piece 4 and slides to inlet tube 2 direction, and spring 6 is in compression state all the time.

Referring to fig. 1 and 2, the outer side wall of the valve element 41 is inclined, the side wall of the valve element 41 is inclined toward the inner side wall of the valve body 1 along the water flow direction, an annular sealing groove 412 is formed in the side wall of the valve element 41, and a sealing ring 8 is clamped in the sealing groove 412. The side wall of the end part of the water inlet pipe 2 close to the valve core 41 is obliquely arranged corresponding to the shape of the valve core 41, namely, the pipe orifice of the water inlet pipe 2 close to the valve core 41 is expanded, and the pipe wall of the obliquely arranged water inlet pipe 2 and the outer side wall of the valve core 41 can enable the valve core 41 to be more tightly connected with the water inlet pipe 2. An annular clamping ring 413 is integrally fixed on the side wall of the end part of the valve core 41 far away from the water inlet pipe 2, and the diameter of the clamping ring 413 is larger than the maximum diameter of the pipe orifice of the water inlet pipe 2, so that the occurrence of the situation that the valve core 41 is blocked with the pipe wall of the water inlet pipe 2 due to overlarge elasticity of the spring 6 in the process of plugging the water inlet pipe 2 can be reduced.

The inclined pipe wall of the water inlet pipe 2 is fixedly connected with a cushion pad 21, and the cushion pad 21 is made of rubber. When the opening and closing member 4 blocks the water inlet pipe 2 and the water outlet pipe 3, the outer side wall of the valve core 41 abuts against the buffer pad 21, the sealing ring 8 also abuts against the buffer pad 21, and the sealing ring 8 is used for increasing the sealing performance between the valve core 41 and the water inlet pipe 2.

Fixedly connected with backup pad 22 in inlet tube 2, backup pad 22 are located case 41 towards one side of inlet tube 2, and backup pad 22 is the circular slab, and the axis of backup pad 22 coincides with the axis of inlet tube 2, has seted up a plurality of through-holes 221 that link up the backup pad 22 face on the backup pad 22, and through-hole 221 is used for the water supply to pass through. The end of the valve core 41 facing the water inlet pipe 2 is fixedly connected with a guide rod 414, the length direction of the guide rod 414 is arranged along the axial direction of the water inlet pipe 2, the guide rod 414 penetrates the support plate 22 and is connected with the support plate 22 in a sliding manner, and the guide rod 414 plays a role in guiding the sliding of the opening and closing member 4.

The support member 5 is annular, the axis of the support member 5 coincides with the axis of the water inlet pipe 2, the support member 5 is provided with a plurality of water passing grooves 51 penetrating through the support member 5 toward the end of the water inlet pipe 2, and the water passing grooves 51 are used for water flow to pass through. Be provided with in the valve body 1 and adjust structure 9, adjust structure 9 including offering on 5 lateral walls of support piece along the external screw thread 91 that support piece 5 circumference set up, and the internal thread 92 that sets up along 1 circumference of valve body on the interior pipe wall of valve body 1, the length direction of internal thread 92 extends to the export direction of outlet pipe 3, and support piece 5 is connected with valve body 1 through external screw thread 91 and internal thread 92 threaded connection. The end part of the support member 5 close to the water outlet pipe 3 is integrally fixed with a retainer ring 52, the retainer ring 52 is used for limiting the support member 5, and further reducing the situation that the spring 6 is compressed to the bottom due to the fact that the support member 5 is too close to the valve core 41, so that water flow cannot rush the opening and closing member 4 and the check valve cannot work.

The implementation principle of a flow control check valve of this application embodiment does: when needs use this check valve, according to the regional flow requirement of using, through rotating support piece 5, adjust the distance between support piece 5 and the case 41, when needs great flow, with support piece 5 rotatory to 3 directions of outlet pipe, and then when making rivers strike, spring 6 is compressed the back, case 41 and the orificial interval grow of inlet tube 2, when needs less flow, with support piece 5 rotatory to 2 directions of inlet tube, when making rivers strike, spring 6 is compressed the back, case 41 and the orificial interval of inlet tube 2 diminish, adjust the flange dish 7 of inlet tube 2 department and other pipeline delivery ports department and pass through bolt fixed connection, pass through bolt fixed connection with the water inlet department of the flange dish 7 of outlet tube 3 department and other pipeline.

Example two:

the embodiment of the present application further discloses a flow regulating check valve, and referring to fig. 3 and 4, the present embodiment is different from the first embodiment in that: the adjusting structure 9 comprises an annular projection 93 fixedly connected to the inner side wall of the valve body 1, and the axis of the annular projection 93 is coincident with the axis of the water inlet pipe 2. Two through grooves 94 are opened to annular arch 93's inside wall, and the both ends face of annular arch 93 is run through to the length direction of logical groove 94, and two through grooves 94 distribute in the both ends of the protruding 93 diameter direction of annular, and two through grooves 94 set up about annular arch 93 symmetry promptly.

Referring to fig. 4 and 5, the adjusting structure 9 further includes two retainers 96 fixedly connected to the outer side wall of the supporting member 5, the retainers 96 are symmetrically arranged along the diameter direction of the supporting member 5, the two retainers 96 are respectively slidably connected to the two through grooves 94, the supporting member 5 is slidably connected to the annular protrusion 93 through the retainers 96 and the through grooves 94, and the retainers 96 can be separated from the through grooves 94 through the sliding of the supporting member 5. The annular protrusion 93 has the different draw-in grooves 95 of the multiunit degree of depth set up on the terminal surface towards inlet tube 2, and draw-in groove 95 link up the inside wall of annular protrusion 93, and every group draw-in groove 95 all has two to set up along the protruding 93 diameter direction symmetry of annular respectively, draw-in groove 95 supplies fixture block 96 joint.

The implementation principle of the second embodiment is as follows: when needs use this check valve, according to the size of required rivers flow, to 2 orientation slip support piece 5 of inlet tube until fixture block 96 and logical groove 94 separation, rotate support piece 5 afterwards, if need great flow, then in rotatory support piece 5 blocks fixture block 96 card into the darker draw-in groove 95 of degree of depth, if need less flow, then with rotatory support piece 5 block 96 card into the shallower draw-in groove 95 of degree of depth, and then can adjust the size of this check valve flow.

In summary, by providing the opening and closing member 4 and the supporting member 5, and by providing the spring 6 between the opening and closing member 4 and the supporting member 5, after the water flows into the check valve through the water inlet pipe 2, the opening and closing member 4 is opened by overcoming the elastic force of the spring 6, and then flows to the water outlet pipe 3 through the gap between the opening and closing member 4 and the water inlet pipe 2, and when the water at the water outlet pipe 3 flows back to the water inlet pipe 2, the opening and closing member 4 is in the closed state under the action of the spring 6. Adjust the distance between opening and shutting piece 4 and support piece 5 through adjusting structure 9, adjust the distance of spring 6 deformation promptly, and then can control opening and shutting piece 4 when opening and the size in gap between the inlet tube 2, and then can adjust the flow of this check valve, reduce the limitation of this check valve.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a flow control check valve, includes valve body (1), valve body (1) includes inlet tube (2) and outlet pipe (3), its characterized in that: the improved water inlet valve is characterized in that a supporting piece (5) is arranged in the valve body (1), a water through groove (51) through which water flows is arranged on the supporting piece (5), a starting and closing piece (4) is connected to the supporting piece (5) in a sliding mode, the starting and closing piece (4) is used for controlling the on-off of the water inlet pipe (2) and the water outlet pipe (3), an elastic piece is arranged between the starting and closing piece (4) and the supporting piece (5), the elastic piece drives the starting and closing piece (4) to slide towards the water inlet pipe (2) through elasticity of the elastic piece, and an adjusting structure (9) for adjusting the distance between the supporting piece (5) and the starting and closing piece (4) is arranged in the valve body (1).

2. A flow regulating check valve as defined in claim 1, wherein: adjust structure (9) including setting up internal thread (92) on valve body (1) inside wall, the circumference setting of valve body (1) is followed in internal thread (92), be provided with external screw thread (91) with internal thread (92) threaded connection along circumference on the lateral wall of support piece (5).

3. A flow regulating check valve as defined in claim 1, wherein: adjust structure (9) including annular protrusion (93) of fixed connection in valve body (1) inside wall, logical groove (94) of lining up annular protrusion (93) are seted up along the rivers direction to the inside wall of annular protrusion (93), fixedly connected with fixture block (96) on support piece (5) the lateral wall, fixture block (96) sliding connection is in leading to groove (94), fixture block (96) can be through sliding and leading to groove (94) separation, draw-in groove (95) of a plurality of different degree of depth are seted up on annular protrusion (93) the lateral wall towards inlet tube (2), draw-in groove (95) are used for with fixture block (96) joint, fixture block (96) can be through sliding support piece (5) and draw-in groove (95) separation.

4. A flow regulating check valve as set forth in claim 3 wherein: the clamping blocks (96) are symmetrically arranged in a plurality, and a plurality of groups of clamping grooves (95) are arranged corresponding to the number of the clamping blocks (96).

5. A flow regulating check valve as defined in claim 1, wherein: fixedly connected with backup pad (22) in inlet tube (2), set up through-hole (221) on backup pad (22) and supply water and circulate, tip fixedly connected with guide bar (414) of opening and close piece (4) orientation inlet tube (2) direction, guide bar (414) and backup pad (22) sliding connection.

6. A flow regulating check valve as set forth in claim 5 wherein: the water inlet pipe is characterized in that the opening and closing part (4) comprises a valve core (41) and a valve rod (42), the valve core (41) is used for controlling the on-off of the water inlet pipe (2) and the water outlet pipe (3), the valve rod (42) is used for being in sliding connection with the supporting part (5), the side wall of the valve core (41) is obliquely arranged, the side wall of the valve core (41) is oblique to the inner wall direction of the valve body (1) along the water flow direction, the shape of the end part, close to the opening and closing part (4), of the water inlet pipe (2) corresponds to the shape of the valve core (41), a sealing ring (8) is arranged on the side wall of the valve core (41), and the sealing ring (8) is used for improving the sealing performance between the water inlet pipe (2) and the opening and closing part (4).

7. A flow regulating check valve as defined in claim 6 wherein: a clamping ring (413) is fixed at the end part of the valve core (41) far away from the water inlet pipe (2).

8. A flow regulating check valve as defined in claim 6 wherein: and a buffer pad (21) is arranged on the inclined side wall of the water inlet pipe (2).