CN216200727U

CN216200727U - Double-flow-passage valve core for plug valve

Info

Publication number: CN216200727U
Application number: CN202122577070.1U
Authority: CN
Inventors: 陈明兴
Original assignee: Wenzhou Maocheng Valve Co ltd
Current assignee: Wenzhou Maocheng Valve Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-04-05
Anticipated expiration: 2031-10-26

Abstract

The utility model provides a double-flow-channel valve core for a plug valve, which comprises a valve body, wherein a connecting plate is welded at the top of the valve body, a rotating shaft is arranged at the top of the connecting plate, a fixed plate is fixedly arranged at the top of the rotating shaft, a rotating mechanism is connected at the top of the fixed plate, a top block is connected to one side of the rotating mechanism, a valve core is arranged at the bottom of the top block, a valve port is formed in the valve core, a telescopic mechanism penetrates through the valve port, and a positioning shaft is embedded at the bottom of the connecting block. This double-flow-passage valve element of plug valve drives kicking block and case through pressing down to the depression bar and slides on the connecting block to the case curb plate when going up and down and a dog slide with laminating with the valve port inner wall, thereby be convenient for the dog reject the impurity on the valve port inner wall, be favorable to preventing the valve port jam, the clearance is favorable to installing and dismantling to the case in the mutually supporting of ejector pin, fixture block and draw-in groove simultaneously.

Description

Double-flow-passage valve core for plug valve

Technical Field

The utility model relates to the technical field of valves, in particular to a double-flow-channel valve core for a plug valve.

Background

The plug valve is a fast-switching straight-through valve, which can be used for medium with suspended particles because the movement between rotary sealing surfaces has a wiping action and can completely prevent the contact with flowing medium when the valve is fully opened. Another important feature is that it is easily adaptable to a multi-channel configuration so that two, three or even four different flow paths can be obtained for a valve. This simplifies the piping design, reduces the amount of valves and fittings required in the equipment, and the plug valve has fittings with different functions inside it, including a valve element for blocking the flow medium, and thus there is a particular need for a dual-flow valve element for a plug valve.

But current double-flow-channel case is at the in-process that fluid medium transmitted, and some impurity can be bonded more or less to the valve port that the case was inside seted up, and the piling up of impurity can cause the inside of plug valve to block up, greatly reduced the work efficiency of plug valve, current plug valve is not convenient for fix a position and clear up the case simultaneously, is unfavorable for carrying out fixed mounting to the case after dismantling, has reduced the sealed effect of plug valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-flow-channel valve core for a plug valve, and aims to solve the problems that in the process of conveying a fluid medium, a valve port formed in the valve core is more or less adhered with impurities, the accumulation of the impurities can block the interior of the plug valve, the working efficiency of the plug valve is greatly reduced, and meanwhile, the conventional plug valve is inconvenient for positioning and cleaning the valve core, is not beneficial to fixedly mounting the disassembled valve core, and reduces the sealing effect of the plug valve.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a double-flow-passage case for plug valve, includes the valve body, the welding of the top of valve body has the connecting plate, the top of connecting plate is provided with the rotation axis, the top fixed mounting of rotation axis has the fixed plate, the top of fixed plate is connected with rotary mechanism, one side of rotary mechanism is connected with the kicking block, the bottom of kicking block is provided with the case, the valve port has been seted up to the inside of case, the inside of valve port runs through there is telescopic machanism, telescopic machanism's bottom fixedly connected with connecting block, the bottom of connecting block is inlayed and is had the location axle, the both sides of location axle are provided with slide mechanism.

Preferably, rotary mechanism includes locating piece, connecting axle, depression bar and fixed axle, the welding of one side top surface of fixed plate has the locating piece, the connecting axle has been run through to the one end of locating piece, the both sides and the depression bar of connecting axle rotate to be connected, the middle part fixed mounting of depression bar has the fixed axle, fixed axle and kicking block interconnect.

Preferably, the positioning block is rotatably connected with the pressure lever through a connecting shaft, and the pressure lever and the ejector block form a rotating structure through a fixing shaft.

Preferably, the telescopic mechanism comprises a limiting groove, a limiting block, a first spring, side plates and a folding block, the limiting groove is formed in the bottom of the valve core, the limiting block is attached to the inside of the limiting groove, the first spring is welded to the top surface of the limiting block, the side plates are welded to the two sides of the limiting block, the folding block is fixedly mounted at the top end of each side plate, and the folding block and the valve port are attached to each other.

Preferably, the valve core and the connecting block form a telescopic structure through a limiting groove and a limiting block, and the side plate and the folding block are symmetrically arranged relative to the longitudinal central line of the limiting block.

Preferably, slide mechanism includes draw-in groove, fixture block, second spring, spout, chute, ejector pin, bottom plate, locating lever and constant head tank, the draw-in groove has been seted up to the both sides of location axle, the inside block of draw-in groove has the fixture block, the spout has been seted up to the both sides of valve body, the fixture block has been cup jointed to the inside of spout, the one end welding of fixture block has the second spring, the chute has been seted up at the middle part of fixture block, the chute is laminated with the ejector pin each other, the bottom and the bottom plate fixed connection of ejector pin, the middle part skin weld of bottom plate has the locating lever, the locating lever is laminated rather than the identical constant head tank of size each other, the bottom at the valve body is seted up to the constant head tank.

Preferably, the valve body is connected with the positioning shaft in a clamping mode through a clamping block and a clamping groove, and the ejector rod and the clamping block form a sliding structure through an inclined groove.

Compared with the prior art, the utility model has the beneficial effects that: this double-flow-passage valve element of plug valve drives kicking block and case through pressing down to the depression bar and slides on the connecting block to the case curb plate when going up and down and a dog slide with laminating with the valve port inner wall, thereby be convenient for the dog reject the impurity on the valve port inner wall, be favorable to preventing the valve port jam, the clearance is favorable to installing and dismantling to the case in the mutually supporting of ejector pin, fixture block and draw-in groove simultaneously.

Drawings

FIG. 1 is a side cross-sectional structural view of the present invention;

FIG. 2 is a schematic view of the structure of the valve core and the connecting block of the present invention;

FIG. 3 is a schematic view of the interconnecting structure of the valve body and the connecting block according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention.

In the figure: 1. a valve body; 2. a connecting plate; 3. a rotating shaft; 4. a fixing plate; 5. a rotation mechanism; 501. positioning blocks; 502. a connecting shaft; 503. a pressure lever; 504. a fixed shaft; 6. a top block; 7. a valve core; 8. a valve port; 9. a telescoping mechanism; 901. a limiting groove; 902. a limiting block; 903. a first spring; 904. a side plate; 905. folding the blocks; 10. connecting blocks; 11. positioning the shaft; 12. a sliding mechanism; 1201. a card slot; 1202. a clamping block; 1203. a second spring; 1204. a chute; 1205. a chute; 1206. a top rod; 1207. a base plate; 1208. positioning a rod; 1209. and (6) positioning a groove.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a double-flow-passage case for plug valve, including valve body 1, the welding of the top of valve body 1 has connecting plate 2, the top of connecting plate 2 is provided with rotation axis 3, the top fixed mounting of rotation axis 3 has fixed plate 4, the top of fixed plate 4 is connected with rotary mechanism 5, one side of rotary mechanism 5 is connected with kicking block 6, the bottom of kicking block 6 is provided with case 7, valve port 8 has been seted up to case 7's inside, telescopic machanism 9 has been run through to valve port 8's inside, telescopic machanism 9's bottom fixedly connected with connecting block 10, the bottom of connecting block 10 is inlayed and is had location axle 11, the both sides of location axle 11 are provided with slide mechanism 12.

Further, the rotating mechanism 5 comprises a positioning block 501, a connecting shaft 502, a pressing rod 503 and a fixing shaft 504, the positioning block 501 is welded on the top surface of one side of the fixing plate 4, the connecting shaft 502 penetrates through one end of the positioning block 501, two sides of the connecting shaft 502 are rotatably connected with the pressing rod 503, the fixing shaft 504 is fixedly installed in the middle of the pressing rod 503, the fixing shaft 504 is connected with the ejecting block 6, and the pressing rod 503 and the fixing shaft 504 are arranged through the positioning block 501, the connecting shaft 502, the pressing rod 503 can rotate on the ejecting block 6 through the fixing shaft 504, and the ejecting block 6 rotates while being fixed through the positioning block 501 and the connecting shaft 502, so that the pressing rod 503 drives the ejecting block 6 and the valve core 7 to move downwards while pressing downwards, and subsequent cleaning of the valve port 8 is facilitated.

Furthermore, the positioning block 501 is rotatably connected with the pressing rod 503 through the connecting shaft 502, the pressing rod 503 forms a rotating structure with the top block 6 through the fixing shaft 504, and the fixing shaft 504, the connecting shaft 502, the pressing rod 503 and the fixing shaft 504 are arranged, so that the fixing shaft 504 can ensure that the pressing rod 503 can stably rotate on the top block 6, and the pressing rod 503 can stably press down the top block 6 through the connecting shaft 502 and the positioning block 501.

Further, the telescopic mechanism 9 comprises a limiting groove 901, a limiting block 902, a first spring 903, a side plate 904 and a folding block 905, the limiting groove 901 is formed at the bottom of the valve core 7, the limiting block 902 is attached to the inside of the limiting groove 901, the first spring 903 is welded on the top surface of the limiting block 902, the side plates 904 are welded on two sides of the limiting block 902, the folding block 905 is fixedly installed at the top end of the side plate 904, the folding block 905 is attached to the valve port 8, through the arrangement of the limiting groove 901, the limiting block 902, the first spring 903, the side plate 904 and the folding block 905, wherein the spool 7 slides on the stopper 902 through the stopper groove 901, wherein the first spring 903 has a damping effect on the lowering of the spool 7, simultaneously can also promote case 7 for case 7 can kick-back, and curb plate 904 and dog 905 are the integral structure, have guaranteed dog 905 stability when clearing up valve port 8.

Further, case 7 constitutes extending structure through spacing groove 901 and stopper 902 and connecting block 10, curb plate 904 and dog-ear 905 set up about the vertical central line symmetry of stopper 902, through spacing groove 901, stopper 902, curb plate 904 and dog-ear 905's setting, wherein spacing groove 901 and stopper 902 mutually support and provide the assurance of stability to reciprocating of case 7, and can also improve the leakproofness to valve body 1, curb plate 904 and dog-ear 905's fixed connection make case 7 closely laminate with valve port 8 when going on descending, be favorable to dog-ear 905 to clear up valve port 8's inner wall.

Further, the sliding mechanism 12 includes a slot 1201, a latch 1202, a second spring 1203, a sliding slot 1204, a chute 1205, a plunger 1206, a bottom plate 1207, a positioning rod 1208 and a positioning slot 1209, the slot 1201 is formed on both sides of the positioning shaft 11, the latch 1202 is engaged with the inside of the slot 1201, the chute 1204 is formed on both sides of the valve body 1, the latch 1202 is sleeved inside the chute 1204, the second spring 1203 is welded on one end of the latch 1202, the chute 1205 is formed on the middle portion of the latch 1202, the chute 1205 and the plunger 1206 are attached to each other, the bottom end of the plunger 1206 is fixedly connected with the bottom plate 1207, the positioning rod 1208 is welded on the middle surface of the bottom plate 1207, the positioning rod 1208 is attached to the positioning slot 1209 with the same size, the positioning slot 1209 is formed on the bottom of the valve body 1, and the positioning slot 1209, the positioning rod 1208 and the positioning slot 1209 are arranged through the slot 1201, the latch 1202, the second spring 1203, the chute 1204, the chute 1205, the plunger 1206, the bottom plate 7, the positioning rod 1208 and the positioning slot 1209, wherein the mutual block of draw-in groove 1201 and fixture block 1202 can fix a position and fixed work between valve body 1 and the location axle 11, also is convenient for carry out fixed mounting and dismantlement work to case 7, and second spring 1203 can make the connection between fixture block 1202 and the draw-in groove 1201 more firm, and the cooperation each other of ejector pin 1206 and chute 1205 can be controlled the position of fixture block 1202, and locating lever 1208 and constant head tank 1209 have avoided droing of bottom plate 1207.

Further, valve body 1 passes through fixture block 1202 and draw-in groove 1201 and is connected with location axle 11 block, the ejector pin 1206 passes through chute 1205 and fixture block 1202 constitution sliding construction, through draw-in groove 1201, fixture block 1202, chute 1205 and ejector pin 1206 set up, draw-in groove 1201 is connected with the block of fixture block 1202's block and can makes case 7 pass through to be connected between location axle 11 and the valve body 1, be convenient for dismantle case 7, change and clearance, the cooperation each other of chute 1205 and ejector pin 1206 can remove the block between valve body 1 and the case 7 and be connected, be favorable to follow-up cleaning work to case 7.

The working principle is as follows: firstly, when the valve core 7 and the valve port 8 arranged on the valve body 1 need to be cleaned, the pressure lever 503 is extruded, so that the pressure lever 503 rotates on the top block 6 through the fixed shaft 504, meanwhile, the top of the pressure lever 503 rotates on the positioning block 501 through the connecting shaft 502, then the pressure lever 503 drives the top block 6 and the valve core 7 to be downward fixed, so that the pressure lever 503 slides through the limiting groove 901 and the limiting block 902, then the side plate 904 and the folding block 905 carry out the attaching cleaning on the inner wall of the valve port 8 due to the downward pressing of the valve core 7, so that impurities attached on the inner wall of the valve port 8 are removed along with liquid, the cleaning work of the internal ratio of the valve port 8 is completed, when the valve core 7 needs to be taken out and cleaned, the bottom plate 1207 is pushed to drive the push rod 1206 to move, then the push rod 1206 slides in a chute 1205 arranged on the clamping block 1202, and the chute 1205 is obliquely distributed, make ejector pin 1206 paste the chute 1205 and slide in the spout 1204 when driving the fixture block 1202, fixture block 1202 and draw-in groove 1201's block separation follows, separate connecting plate 2 simultaneously, be favorable to the follow-up work of taking out to case 7, wherein locating lever 1208 and constant head tank 1209 can prevent that bottom plate 1207 from droing, the stability of plug valve has been improved, aim at valve body 1 with case 7 during the installation and push, make case 7 be connected with 1 block of valve body through location axle 11, the installation work to case 7 has been accomplished, a double-flow-passage case for plug valve has just so been accomplished.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A dual flow spool for a plug valve comprising a valve body (1), characterized in that: the valve is characterized in that a connecting plate (2) is welded to the top of the valve body (1), a rotating shaft (3) is arranged on the top of the connecting plate (2), a fixing plate (4) is fixedly mounted on the top of the rotating shaft (3), a rotating mechanism (5) is connected to the top of the fixing plate (4), an ejecting block (6) is connected to one side of the rotating mechanism (5), a valve core (7) is arranged at the bottom of the ejecting block (6), a valve port (8) is formed in the valve core (7), a telescopic mechanism (9) penetrates through the inside of the valve port (8), a connecting block (10) is fixedly connected to the bottom of the telescopic mechanism (9), a positioning shaft (11) is inlaid at the bottom of the connecting block (10), and sliding mechanisms (12) are arranged on two sides of the positioning shaft (11).

2. The dual-flow-channel valve core for the plug valve according to claim 1, wherein the rotating mechanism (5) comprises a positioning block (501), a connecting shaft (502), a pressing rod (503) and a fixing shaft (504), the positioning block (501) is welded on the top surface of one side of the fixing plate (4), the connecting shaft (502) penetrates through one end of the positioning block (501), two sides of the connecting shaft (502) are rotatably connected with the pressing rod (503), the fixing shaft (504) is fixedly installed in the middle of the pressing rod (503), and the fixing shaft (504) is connected with the jacking block (6) in an interconnection mode.

3. The dual-flow valve core for the plug valve according to claim 2, wherein the positioning block (501) is rotatably connected with a pressing rod (503) through a connecting shaft (502), and the pressing rod (503) and the top block (6) form a rotating structure through a fixed shaft (504).

4. The double-flow-channel valve core for the plug valve according to claim 1, wherein the telescopic mechanism (9) comprises a limiting groove (901), a limiting block (902), a first spring (903), a side plate (904) and a folding block (905), the limiting groove (901) is formed in the bottom of the valve core (7), the limiting block (902) is attached to the inside of the limiting groove (901), the first spring (903) is welded to the top surface of the limiting block (902), the side plates (904) are welded to two sides of the limiting block (902), the folding block (905) is fixedly mounted at the top end of each side plate (904), and the folding block (905) and the valve port (8) are attached to each other.

5. The dual-channel valve core for the plug valve according to claim 4, wherein the valve core (7) and the connecting block (10) form a telescopic structure through a limiting groove (901) and a limiting block (902), and the side plate (904) and the folding block (905) are symmetrically arranged about a longitudinal central line of the limiting block (902).

6. The dual-flow-channel valve core for the plug valve according to claim 1, wherein the sliding mechanism (12) comprises a clamping groove (1201), a clamping block (1202), a second spring (1203), a sliding groove (1204), an inclined groove (1205), a push rod (1206), a bottom plate (1207), a positioning rod (1208) and a positioning groove (1209), the clamping groove (1201) is formed in two sides of the positioning shaft (11), the clamping block (1202) is clamped in the clamping groove (1201), the sliding groove (1204) is formed in two sides of the valve body (1), the clamping block (1202) is sleeved in the sliding groove (1204), the second spring (1203) is welded at one end of the clamping block (1202), the inclined groove (1205) is formed in the middle of the clamping block (1202), the inclined groove (1205) and the push rod (1206) are attached to each other, and the bottom end of the push rod (1206) is fixedly connected with the bottom plate (1207), the middle surface welding of bottom plate (1207) has locating lever (1208), locating lever (1208) laminate each other rather than identical constant head tank of size (1209), the bottom at valve body (1) is seted up in constant head tank (1209).

7. The dual-flow valve core for the plug valve according to claim 6, wherein the valve body (1) is connected with the positioning shaft (11) in a clamping manner through a clamping block (1202) and a clamping groove (1201), and the ejector rod (1206) forms a sliding structure with the clamping block (1202) through an inclined groove (1205).