CN114962735A

CN114962735A - Reducing check valve

Info

Publication number: CN114962735A
Application number: CN202210400675.XA
Authority: CN
Inventors: 何声东
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-17
Filing date: 2022-04-17
Publication date: 2022-08-30

Abstract

The invention discloses a reducing check valve, relates to the technical field of check valves, and solves the problems that the existing reducing check valve cannot adapt to the installation of various pipelines in size and is inconvenient to control the flow of a valve body and the like. The utility model provides a reducing check valve, includes valve casing installation mechanism, non return mechanism is installed to valve casing installation mechanism's inboard, non return mechanism includes water conservancy diversion locating rack, direction transmission post, the spacing seat of toper, spacing piece, supporting spring and one-way shutoff dish, one side of one-way shutoff dish is provided with supporting spring, spacing piece is installed to supporting spring's one end, the direction transmission post is installed to the inboard of spacing piece, the water conservancy diversion locating rack is installed to one side that the outside at direction transmission post middle part is located spacing piece. The invention is convenient for realizing the assembly and variable diameter conveying of pipelines with different sizes by installing according to the sizes of the pipelines, and is convenient for unidirectional flow guiding and flow regulation.

Description

Reducing check valve

Technical Field

The invention relates to the technical field of check valves, in particular to a reducing check valve.

Background

With the rapid development of social economy, the check valve is a valve in which the opening and closing piece is a circular valve clack and acts by the self weight and the medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. On the contrary, the valve is closed when the medium flows backwards, the backflow of water can be prevented, and the variable-diameter check valve can be used for connecting two pipelines with different sizes.

However, the existing variable-diameter check valve cannot adapt to the installation of various pipelines in size when in use, and is inconvenient for controlling the flow of the valve body; thus, the existing requirements are not met, and a reducing check valve is provided for the requirement.

Disclosure of Invention

The invention aims to provide a reducing check valve, which solves the problems that the existing reducing check valve proposed in the background art cannot be suitable for installation of various pipeline sizes in use, and the flow of a valve body is inconvenient to control.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a reducing check valve, includes valve casing installation mechanism, non return mechanism is installed to valve casing installation mechanism's inboard, non return mechanism includes water conservancy diversion locating rack, direction transmission post, the spacing seat of toper, spacing piece, supporting spring and one-way shutoff dish, one side of one-way shutoff dish is provided with supporting spring, spacing piece is installed to supporting spring's one end, the direction transmission post is installed to the inboard of spacing piece, the outside at direction transmission post middle part is located one side of spacing piece and installs the water conservancy diversion locating rack, the direction transmission post is located the one end of keeping away from one-way shutoff dish and installs the spacing seat of toper, first toper reducing mechanism is installed in the outside of one-way shutoff dish, second toper diameter-changing mechanism is installed in the outside of the spacing seat of toper.

Preferably, first toper reducing mechanism includes first conical valve body, positioning disk, first retainer ring, first connection screw ring, locking ring and spacer, first retainer ring is installed to the inboard of the one end of first conical valve body, the inboard of first retainer ring is provided with first connection screw ring, the locking ring is installed to one side of first connection screw ring, the jumbo size input tube is installed to the inboard of locking ring, the inboard fixed mounting of the first conical valve body other end has the positioning disk, the inboard of positioning disk evenly is provided with six spacers.

Preferably, second toper diameter-changing mechanism includes second toper valve body, spacing dish, second holding ring, second connecting thread ring, first sealed clamping ring and the sealed clamping ring of second, spacing dish is installed to second toper valve body's inboard, three first sealed clamping ring is evenly installed to one side of spacing dish, second connecting thread ring is installed to one side of first sealed clamping ring, and is three twelve second holding rings are installed in the outside of second connecting thread ring, and wherein three a sealed clamping ring of second is installed to one side of second holding ring, the small-size output tube is installed to the inboard of the sealed clamping ring of second.

Preferably, valve casing installation mechanism includes the valve casing main part, adjusts position sleeve, sealing ring and overhauls the end cap, the sealing ring is all installed to the inboard at valve casing main part both ends, the middle part of valve casing main part evenly is provided with six and adjusts the position sleeve, one of them the inboard of adjusting the position sleeve is installed and is overhauld the end cap.

Preferably, the locating plate is welded and fixed with the locating plate, one side of the locating plate is provided with a locating hole, one side of the one-way plugging plate extends to the inner side of the locating hole, and the one-way plugging plate is connected with the guide transmission column through the locating plate.

Preferably, the inner wall of the first conical valve body is uniformly provided with five positioning grooves, the inner circle sizes of the five positioning grooves are sequentially increased and decreased, the first positioning ring is arranged on the inner side of the positioning groove with the largest inner circle size, the first positioning ring is welded and fixed with the first conical valve body, the first positioning ring is fixedly clamped with the first connecting threaded ring, one end of the large-size input pipe is connected with the first connecting threaded ring through threads, the locking ring is fixedly connected with the first positioning ring through screws, and the locking ring is connected with the large-size input pipe and the first connecting threaded ring through sealing rings.

Preferably, the limiting disc is in threaded connection with the second conical valve body, and one end of the guide transmission column is connected with the limiting disc through a conical limiting seat.

Preferably, the inner wall of second toper valve body is provided with three draw-in groove, the second holding ring sets up in the inboard of draw-in groove, twelve the second holding ring equallyd divide into three groups, three groups the second holding ring and three the diameter size of second connecting thread ring and first sealed clamping ring all increases in proper order, the one end and the second connecting thread ring of small-size output tube pass through threaded connection, small-size output tube is connected through first sealed clamping ring and second sealed clamping ring with second toper valve body.

Preferably, the middle part that water conservancy diversion locating rack and spacing piece were run through to the one end of direction transmission post is connected with one-way shutoff dish through the parallel key, spacing piece passes through threaded connection with the direction transmission post, spacing piece passes through supporting spring with one-way shutoff dish and is connected.

Preferably, adjust position sleeve and valve casing main part welded fastening, the maintenance end cap passes through threaded connection with the valve casing main part, the valve casing main part all is connected through the second holding ring with first toper reducing mechanism and second toper reducing mechanism.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the five positioning grooves are uniformly arranged on the inner wall of the first conical valve body, the sizes of the inner circles of the five positioning grooves are sequentially increased and decreased, the sizes of the positioning grooves are determined according to the sizes of the large-size input pipes, so that different large-size input pipes can be conveniently installed, the inner wall of the second conical valve body is provided with three clamping grooves, and the second positioning ring is arranged on the inner side of the clamping groove, so that the second connecting threaded ring is limited and installed through the second positioning ring, the size of the second positioning ring is determined according to the size of the small-size output pipe, and pipelines with different sizes can be conveniently installed and conveyed in a variable diameter mode;

2. according to the invention, by inputting a medium, the one-way plugging disc is pressed to drive the supporting spring to contract and then separate from the positioning plate, meanwhile, the guide transmission column drives the conical limiting seat to separate from the limiting disc under the guide effect of the guide positioning frame, the output operation can be carried out through the small-size output pipe, the one-way plugging disc is supported through the supporting spring so as to keep the flow stable, the strength of the integral one-way flow guide can be effectively ensured through the contact of the positioning disc, the positioning plate and the conical limiting seat, the valve shell main body is driven to rotate through the positioning sleeve, the distance between the first conical valve body and the second conical valve body is further conveniently adjusted, the distance between the positioning disc and the limiting plate is adjusted, and the flow can be further controlled.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic view of a partial cross-sectional structure of the check mechanism of the present invention;

FIG. 3 is a schematic view of a partial cross-sectional structure of a first tapered diameter-changing mechanism according to the present invention;

FIG. 4 is a schematic view of a second taper diameter-changing mechanism according to the present invention;

FIG. 5 is a schematic view of the check mechanism of the present invention;

FIG. 6 is a schematic view of a partial structure of the puck of the present invention.

In the figure: 1. a large-sized input tube; 2. a small-sized output pipe; 3. a first tapered diameter-changing mechanism; 301. a first conical valve body; 302. positioning a plate; 303. a first positioning ring; 304. a first connecting threaded ring; 305. locking a ring; 306. positioning plates; 4. a second taper diameter changing mechanism; 401. a second conical valve body; 402. a limiting disc; 403. a second positioning ring; 404. a second connecting threaded ring; 405. a first sealing press ring; 406. a second sealing press ring; 5. a valve housing installation mechanism; 501. a valve housing body; 502. adjusting the positioning sleeve; 503. a seal ring; 504. overhauling the plug; 6. a non-return mechanism; 601. a flow guiding positioning frame; 602. a guide transmission column; 603. a conical limiting seat; 604. a limiting sheet; 605. a support spring; 606. one-way shutoff dish.

Detailed Description

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

Referring to fig. 1 to 6, an embodiment of the present invention includes: a reducing check valve comprises a valve shell installation mechanism 5, a check mechanism 6 is installed on the inner side of the valve shell installation mechanism 5, the check mechanism 6 comprises a flow guide positioning frame 601, a guide transmission column 602, a conical limiting seat 603, a limiting sheet 604, a supporting spring 605 and a one-way blocking disc 606, one side of the one-way blocking disc 606 is provided with the supporting spring 605, one end of the supporting spring 605 is provided with the limiting sheet 604, the one-way blocking disc 606 can be conveniently reset through the supporting spring 605, the check operation is convenient, the guide transmission column 602 is installed on the inner side of the limiting sheet 604, the flow guide positioning frame 601 is installed on one side, located on the limiting sheet 604, of the middle part of the guide transmission column 602, the conical limiting seat 603 is installed at one end, located away from the one-way blocking disc 606, a first conical reducing mechanism 3 is installed on the outer side of the one-way blocking disc 606, a second conical reducing mechanism 4 is installed on the outer side of the conical limiting seat 603, wholly through installing according to the pipeline size, be convenient for realize the equipment and the reducing of not unidimensional pipeline and carry, and be convenient for one-way water conservancy diversion and flow control.

Further, the first tapered diameter-changing mechanism 3 comprises a first tapered valve body 301, a positioning plate 302, a first positioning ring 303, a first connecting threaded ring 304, a locking ring 305 and positioning pieces 306, the first positioning ring 303 is mounted on the inner side of one end of the first tapered valve body 301, the first connecting threaded ring 304 is arranged on the inner side of the first positioning ring 303, the locking ring 305 is mounted on one side of the first connecting threaded ring 304, the large-size input pipe 1 is mounted on the inner side of the locking ring 305, the positioning plate 302 is fixedly mounted on the inner side of the other end of the first tapered valve body 301, six positioning pieces 306 are uniformly arranged on the inner side of the positioning plate 302, and the first tapered diameter-changing mechanism 3 is convenient for fixedly mounting the large-size input pipes 1 of different sizes.

Further, the second conical diameter-changing mechanism 4 comprises a second conical valve body 401, a limiting disc 402, a second positioning ring 403, a second connecting threaded ring 404, a first sealing clamping ring 405 and a second sealing clamping ring 406, the limiting disc 402 is installed on the inner side of the second conical valve body 401, three first sealing clamping rings 405 are evenly installed on one side of the limiting disc 402, the second connecting threaded ring 404 is installed on one side of the first sealing clamping ring 405, twelve second positioning rings 403 are installed on the outer sides of the three second connecting threaded rings 404, one second sealing clamping ring 406 is installed on one side of each of the three second positioning rings 403, small-size output tubes 2 are installed on the inner side of each second sealing clamping ring 406, and the second conical diameter-changing mechanism 4 is convenient for fixedly installing the small-size output tubes 2 of different sizes.

Further, valve casing installation mechanism 5 includes valve casing main part 501, adjusts position sleeve 502, sealing ring 503 and overhauls end cap 504, and sealing ring 503 is all installed to the inboard at valve casing main part 501 both ends, and valve casing main part 501's middle part evenly is provided with six and adjusts position sleeve 502, and one of them is adjusted the inboard of position sleeve 502 and is installed and overhauls end cap 504, is convenient for carry the medium through valve casing installation mechanism 5.

Further, spacer 306 and positioning disk 302 welded fastening, one side of spacer 306 is provided with the locating hole, and one side of one-way shutoff dish 606 extends to the inboard of locating hole, and one-way shutoff dish 606 is connected through spacer 306 with direction transmission post 602, is convenient for fix a position the installation to one-way shutoff dish 606 through spacer 306, avoids deflecting.

Further, five positioning grooves are uniformly formed in the inner wall of the first conical valve body 301, the inner circle sizes of the five positioning grooves are sequentially increased and decreased, the first positioning ring 303 is arranged on the inner side of the positioning groove with the largest inner circle size, the first positioning ring 303 is welded and fixed with the first conical valve body 301, the first positioning ring 303 is clamped and fixed with the first connecting threaded ring 304, one end of the large-size input pipe 1 is connected with the first connecting threaded ring 304 through threads, the locking ring 305 is connected and fixed with the first positioning ring 303 through screws, and the locking ring 305 is connected with the large-size input pipe 1 and the first connecting threaded ring 304 through sealing rings, so that the locking ring 305 is convenient for sealing one end of the large-size input pipe 1.

Further, the limiting disc 402 is in threaded connection with the second conical valve body 401, one end of the guide transmission column 602 is connected with the limiting disc 402 through the conical limiting seat 603, the conical limiting seat 603 is limited through the limiting disc 402, and the non-return strength is improved.

Further, the inner wall of second conical valve body 401 is provided with three draw-in grooves, second holding ring 403 sets up the inboard at the draw-in groove, twelve second holding rings 403 equally divide into three groups, three groups of second holding rings 403 and three second connecting thread ring 404 all increase in proper order with the diameter size of first sealed clamping ring 405, the one end and the second connecting thread ring 404 of small-size output tube 2 pass through threaded connection, small-size output tube 2 is connected through first sealed clamping ring 405 and second sealed clamping ring 406 with second conical valve body 401, be convenient for fix a position the installation to second connecting thread ring 404 through second holding ring 403.

Further, the middle part that the one end of direction drive post 602 runs through water conservancy diversion locating rack 601 and spacing piece 604 is connected with one-way shutoff dish 606 through the parallel key, and spacing piece 604 passes through threaded connection with direction drive post 602, and spacing piece 604 is connected through supporting spring 605 with one-way shutoff dish 606, is convenient for reset one-way shutoff dish 606 through supporting spring 605, and then is convenient for the non return operation.

Further, adjust position sleeve 502 and valve casing main part 501 welded fastening, overhaul end cap 504 and valve casing main part 501 and pass through threaded connection, valve casing main part 501 all is connected through second holding ring 403 with first toper reducing mechanism 3 and second toper reducing mechanism 4, adjusts position sleeve 502 and drives valve casing main part 501 and rotate, and then is convenient for adjust first toper valve body 301 and second toper valve body 401's interval.

The working principle is as follows: when the valve shell is used, whether the functions of all parts are intact is checked, two ends of the valve shell main body 501 are connected with the first conical valve body 301 and the second conical valve body 401 through threads, two ends of the valve shell main body 501 are conveniently sealed through the sealing rings 503, the guide positioning frame 601 is fixedly welded with the valve shell main body 501, so that the guide transmission column 602 is conveniently positioned and guided through the guide positioning frame 601, five positioning grooves are uniformly arranged on the inner wall of the first conical valve body 301, the inner circle sizes of the five positioning grooves are sequentially increased and decreased, the sizes of the positioning grooves are determined according to the size of the large-size input pipe 1, so that different large-size input pipes 1 are conveniently installed, the first positioning ring 303 is fixedly welded with the first conical valve body 301, the first positioning ring 303 is fixedly clamped with the first connecting threaded ring 304, the large-size input pipe 1 is connected with the first connecting threaded ring 304 through threads, the locking ring 305 is connected with the first positioning ring 303 through a screw, so as to facilitate the fixed installation of the large-size input pipe 1, three clamping grooves are arranged on the inner wall of the second conical valve body 401, the second positioning ring 403 is arranged on the inner side of the clamping grooves, so that the second positioning ring 404 is limited and installed through the second positioning ring 403, the size of the second positioning ring 403 is determined according to the size of the small-size output pipe 2, the second positioning ring 404 is connected with the small-size output pipe 2 through a thread, so as to facilitate the sealed installation of the small-size output pipe 2, a power supply is switched on, a medium is input through the large-size input pipe 1, so that the one-way blocking disc 606 is pressed to drive the supporting spring 605 to contract and then separate from the positioning plate 306, meanwhile, the guide transmission column 602 drives the conical limiting seat 603 to separate from the limiting disc 402 under the guide effect of the guide positioning frame 601, so as to further drive the positioning disc 302, Flow guide positioning frame 601 and spacing dish 402 are convenient for carry the medium, and then can carry out output operation through small-size output tube 2, support the stability of being convenient for keep the flow to one-way shutoff dish 606 through supporting spring 605, can effectively guarantee the intensity of whole one-way water conservancy diversion through positioning disk 302 and spacer 306 and spacing dish 402 and the contact of the spacing seat 603 of toper, be provided with six regulation position sleeve 502 at the middle part of valve casing main part 501, make and adjust position sleeve 502 and drive valve casing main part 501 and rotate through inserting the spanner, and then be convenient for adjust the interval of first toper valve body 301 and second toper valve body 401, make positioning disk 302 adjust with the interval of spacing piece 604, and then can control the size of flow.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a reducing check valve, includes valve housing installation mechanism (5), its characterized in that: the check mechanism (6) is installed on the inner side of the valve shell installation mechanism (5), the check mechanism (6) comprises a flow guide positioning frame (601), a guide transmission column (602), a conical limiting seat (603), a limiting piece (604), a supporting spring (605) and a one-way blocking disc (606), the supporting spring (605) is arranged on one side of the one-way blocking disc (606), the limiting piece (604) is installed at one end of the supporting spring (605), the guide transmission column (602) is installed on the inner side of the limiting piece (604), the flow guide positioning frame (601) is installed on one side, located on the limiting piece (604), of the outer side of the middle part of the guide transmission column (602), the conical limiting seat (603) is installed at one end, located far away from the one-way blocking disc (606), of the one-way blocking disc (606), and a first conical reducing mechanism (3) is installed on the outer side of the one-way blocking disc (606), and a second taper diameter-changing mechanism (4) is arranged on the outer side of the taper limiting seat (603).

2. The variable diameter check valve of claim 1, wherein: first toper reducing mechanism (3) include first toper valve body (301), positioning disk (302), first locating ring (303), first connecting thread ring (304), locking ring (305) and spacer (306), first locating ring (303) are installed to the inboard of the one end of first toper valve body (301), the inboard of first locating ring (303) is provided with first connecting thread ring (304), locking ring (305) are installed to one side of first connecting thread ring (304), jumbo size input tube (1) is installed to the inboard of locking ring (305), the inboard fixed mounting of the first toper valve body (301) other end has positioning disk (302), the inboard of positioning disk (302) evenly is provided with six spacers (306).

3. The variable diameter check valve of claim 1, wherein: second toper diameter changing mechanism (4) include second toper valve body (401), spacing dish (402), second holding ring (403), second connecting thread ring (404), first sealed clamping ring (405) and the sealed clamping ring of second (406), spacing dish (402) are installed to the inboard of second toper valve body (401), three first sealed clamping ring (405) are evenly installed to one side of spacing dish (402), second connecting thread ring (404) are installed to one side of first sealed clamping ring (405), and are three twelve second holding rings (403), wherein three are installed in the outside of second connecting thread ring (404) one side of second holding ring (403) is installed one sealed clamping ring of second (406), small-size output tube (2) are installed to the inboard of the sealed clamping ring of second (406).

4. The variable diameter check valve of claim 1, wherein: valve casing installation mechanism (5) include valve casing main part (501), adjust position sleeve (502), sealing ring (503) and overhaul end cap (504), sealing ring (503) are all installed to the inboard at valve casing main part (501) both ends, the middle part of valve casing main part (501) evenly is provided with six and adjusts position sleeve (502), one of them adjust the inboard of position sleeve (502) and install and overhaul end cap (504).

5. The variable diameter check valve of claim 2, wherein: the positioning plate (306) is welded and fixed with the positioning disc (302), a positioning hole is formed in one side of the positioning plate (306), one side of the unidirectional blocking disc (606) extends to the inner side of the positioning hole, and the unidirectional blocking disc (606) is connected with the guide transmission column (602) through the positioning plate (306).

6. The variable diameter check valve of claim 2, wherein: the inner wall of first toper valve body (301) evenly is provided with five constant head tanks, five the interior circle size of constant head tank increases and decreases in proper order, the inboard of the biggest constant head tank of circle size including first locating ring (303) set up, first locating ring (303) and first toper valve body (301) welded fastening, first locating ring (303) are fixed with first connecting thread ring (304) joint, the one end and the first connecting thread ring (304) of jumbo size input tube (1) pass through threaded connection, locking ring (305) are fixed through screw connection with first locating ring (303), locking ring (305) all pass through the sealing washer with jumbo size input tube (1) and first connecting thread ring (304) and are connected.

7. The variable diameter check valve of claim 3, wherein: the limiting disc (402) is in threaded connection with the second conical valve body (401), and one end of the guide transmission column (602) is connected with the limiting disc (402) through a conical limiting seat (603).

8. The variable diameter check valve of claim 3, wherein: the inner wall of second toper valve body (401) is provided with three draw-in groove, second holding ring (403) set up the inboard at the draw-in groove, twelve second holding ring (403) etc. divide into three groups, three groups second holding ring (403) and three second connecting thread ring (404) all increase in proper order with the diameter size of first sealed clamping ring (405), the one end and second connecting thread ring (404) of small-size output tube (2) pass through threaded connection, small-size output tube (2) are connected through first sealed clamping ring (405) and second sealed clamping ring (406) with second toper valve body (401).

9. The variable diameter check valve of claim 1, wherein: one end of the guide transmission column (602) penetrates through the middle parts of the guide positioning frame (601) and the limiting piece (604) and is connected with the one-way plugging disc (606) through a flat key, the limiting piece (604) is in threaded connection with the guide transmission column (602), and the limiting piece (604) is connected with the one-way plugging disc (606) through a supporting spring (605).

10. The variable diameter check valve of claim 4, wherein: adjust position sleeve (502) and valve casing main part (501) welded fastening, overhaul end cap (504) and valve casing main part (501) and pass through threaded connection, valve casing main part (501) all are connected through second holding ring (403) with first toper reducing mechanism (3) and second toper reducing mechanism (4).