CN220082409U - Butt joint assembly of check valve - Google Patents

Abstract

The utility model discloses a butt joint assembly of a check valve, which relates to the field of valves and comprises the check valve and connecting pipes, wherein two valve pipes are arranged on the check valve, connecting flanges are fixedly arranged on the two valve pipes and the two connecting pipes, the two connecting flanges positioned on the same side are contacted, and a plurality of mounting holes are formed in the four connecting flanges. According to the utility model, through the arrangement of the structures such as the linkage turntable, the positioning plunger rod, the movable clamping plate and the like, when the check valve is damaged, the linkage rings on two sides are pushed to enable the movable clamping plate to be far away from the positioning plunger rod, then the movable clamping plate is rotated to enable the movable clamping plate to rotate and release the restriction on the positioning lantern rings, and then the two positioning lantern rings are separated from the connecting flange on the connecting pipe and the valve pipe through pulling the handle, so that the connection between the connecting pipe and the check valve is released, the check valve can be conveniently detached and maintained or replaced by a worker without detaching screws, and the situation that the check valve is difficult to detach due to rust of the screws is avoided.

Description

Butt joint assembly of check valve

Technical Field

The utility model relates to the technical field of valves, in particular to a butt joint assembly of a check valve.

Background

The check valve is a valve with a circular valve clack and used for blocking the backflow of a medium by the action of the self weight and the pressure of the medium, and belongs to automatic valves, namely a check valve, a one-way valve, a reflux valve or an isolation valve, wherein the movement mode of the valve clack is divided into a lifting type and a swing type.

In the prior art, a flange is generally adopted between the check valve and the pipeline, a plurality of bolts are required to be connected on the flange for fixing, but in the long-time use process, the bolts are easy to rust and are difficult to unscrew, if the check valve is damaged at this time, the check valve is difficult to disassemble, replace or maintain, and therefore, the butt joint assembly of the check valve is required to meet the demands of people.

Disclosure of Invention

The utility model aims to provide a butt joint assembly of a check valve, which aims to solve the problems that a plurality of bolts are required to be connected to a flange for connecting the check valve and a pipeline for fixing in the prior art, the bolts are easy to rust and are difficult to unscrew, and if the check valve is damaged, the check valve is difficult to detach, replace or maintain.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a docking subassembly of check valve, includes check valve and connecting pipe, be equipped with two valve pipes on the check valve, equal fixed mounting has flange on two valve pipes and the two connecting pipes, is located two connecting flanges of same one side and contacts, has all seted up a plurality of mounting holes on four flange, two equal fixed ring has been cup jointed on the valve pipe, equal fixed mounting has two dead levers on two dead rings, and fixed mounting has two fixed plates on four dead levers, all rotates on two fixed plates and installs location structure, and fixed mounting has a plurality of fixed blocks on the location structure, slidable mounting has limit structure on the fixed block, fixed mounting has the limit ring on the location structure, movable mounting has the linkage structure on the limit ring.

Preferably, the positioning structure comprises two linkage turntables, the two linkage turntables are respectively rotatably installed on one sides of the two fixing plates, which are far away from each other, the connecting rods are fixedly installed on one sides of the two linkage turntables, which are far away from each other, the same handle is fixedly installed on one sides of the two connecting rods, the two linkage turntables are rotatably installed with two linkage rods, one sides of the two linkage rods, which are close to each other, of the two linkage rods, are rotatably installed with the same positioning lantern ring, the positioning lantern ring is slidably sleeved on the valve pipe, the two connecting flanges, which are located on the same side, are movably installed in the same positioning lantern ring, the inner wall of the positioning lantern ring is fixedly provided with a plurality of positioning inserted rods, the positioning inserted rods are movably installed in the two installing holes, which are located on the same side, one side of the positioning lantern ring is fixedly installed with an auxiliary spring, the other end of the auxiliary spring is fixedly installed on one side of the fixing ring, and the auxiliary spring is slidably sleeved on the valve pipe.

Preferably, the linkage rod is provided with a rotation hole, a fixed shaft is rotatably arranged in the rotation hole, the fixed shaft is fixedly arranged on the positioning lantern ring, the linkage turntable is provided with a linkage hole, the limiting shaft is rotatably arranged on the limiting shaft, and the limiting shaft is fixedly arranged on one side of the linkage turntable.

Preferably, the limit structure comprises a plurality of adjusting rods, the adjusting rods are slidably mounted on the fixed blocks, the fixed blocks are fixedly mounted on the positioning lantern rings, the two ends of each adjusting rod are respectively and fixedly provided with a linkage gear and a movable clamping plate, clamping grooves are formed in the movable clamping plates, and the positioning inserting rods are movably mounted in the clamping grooves.

Preferably, the adjusting rod is sleeved with a limiting spring in a sliding manner, one end of the limiting spring is fixedly arranged on one side of the fixed block, and the other end of the limiting spring is in contact with the linkage gear.

Preferably, the fixed block is provided with a movable hole, and the adjusting rod is slidably arranged in the movable hole.

Preferably, the linkage structure comprises a linkage ring, the linkage ring is movably arranged on the limiting ring, the limiting ring is fixedly arranged on one side of the positioning lantern ring, the linkage ring is fixedly provided with a fixed gear ring, and the fixed gear ring is meshed with the linkage gear.

Preferably, the linkage ring is provided with a limiting groove, and the limiting ring is movably arranged in the limiting groove.

The beneficial effects of the utility model are as follows:

according to the utility model, through the arrangement of the structures such as the linkage turntable, the positioning plunger rod, the movable clamping plate and the like, when the check valve is damaged, the linkage rings on two sides are pushed to enable the movable clamping plate to be far away from the positioning plunger rod, then the movable clamping plate is rotated to enable the movable clamping plate to rotate and release the restriction on the positioning lantern rings, and then the two positioning lantern rings are separated from the connecting flange on the connecting pipe and the valve pipe through pulling the handle, so that the connection between the connecting pipe and the check valve is released, the check valve can be conveniently detached and maintained or replaced by a worker without detaching screws, and the situation that the check valve is difficult to detach due to rust of the screws is avoided.

According to the utility model, through the arrangement of the positioning lantern rings, when the check valve is replaced and installed, as the pipelines on the two sides are fixed, the positioning lantern rings on the two sides retract by pulling the handle during installation, after the check valve is aligned with the connecting flange on the connecting pipe, the handle is loosened, and the positioning lantern rings on the two sides are respectively sleeved on the connecting flange on the two sides at the moment, so that the preliminary positioning of the check valve and the connecting pipe is realized, the check valve does not need to be supported all the time in the process of installing the check valve, the labor is saved, and the installation process is more convenient.

Drawings

FIG. 1 is a schematic view of a butt joint assembly of a check valve according to the present utility model;

FIG. 2 is a schematic diagram showing a connection structure of a butt joint assembly of a check valve according to the present utility model;

FIG. 3 is a schematic view of a connection structure of a linkage turntable portion of a docking assembly of a check valve according to the present utility model;

FIG. 4 is a schematic view showing the connection structure of the positioning collar portion of the butt joint assembly of the check valve according to the present utility model;

FIG. 5 is a schematic cross-sectional view of a collar portion of a docking assembly of a check valve according to the present utility model.

In the figure: 100. a check valve; 101. a connecting pipe; 102. a connecting flange; 103. a mounting hole; 104. a valve tube; 200. a fixing ring; 201. a fixed rod; 202. a fixing plate; 203. a linkage turntable; 204. a connecting rod; 205. a handle; 206. a linkage rod; 207. positioning the lantern ring; 208. positioning the inserted link; 209. a rotation hole; 210. a fixed shaft; 211. a linkage hole; 212. a limiting shaft; 213. an auxiliary spring; 300. a fixed block; 301. an adjusting rod; 302. a linkage gear; 303. a movable clamping plate; 304. a clamping groove; 305. a limit spring; 306. a movable hole; 400. a limiting ring; 401. a linkage ring; 402. fixing the toothed ring; 403. a limiting groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 5, a docking assembly of a check valve, comprising a check valve 100 and a connection pipe 101, wherein two valve pipes 104 are arranged on the check valve 100, connection flanges 102 are fixedly installed on the two valve pipes 104 and the two connection pipes 101, the two connection flanges 102 positioned on the same side are contacted, a plurality of installation holes 103 are formed on the four connection flanges 102, a fixing ring 200 is fixedly sleeved on the two valve pipes 104, two fixing rods 201 are fixedly installed on the two fixing rings 200, two fixing plates 202 are fixedly installed on the four fixing rods 201, a positioning structure is rotatably installed on the two fixing plates 202, a plurality of fixing blocks 300 are fixedly installed on the positioning structure, a limiting structure is slidably installed on the fixing block 300, a limiting ring 400 is fixedly installed on the positioning structure, a linkage structure is movably installed on the limiting ring 400, when the check valve 100 is damaged, the linkage rings 401 on two sides are pushed, when the linkage ring 401 moves, the linkage ring 401 moves on the limiting ring 400 through the limiting groove 403, the linkage ring 401 moves and pushes the linkage gear 302 to move, the movement of the linkage gear 302 drives the adjusting rod 301 to slide in the movable hole 306 on the fixed block 300, so as to avoid the deviation of the adjusting rod 301, the moving adjusting rod 301 drives the clamping groove 304 on the movable clamping plate 303 to separate from the positioning inserting rod 208, so that the limitation on the movable clamping plate 303 and the positioning inserting rod 208 can be removed, then the linkage ring 401 is rotated, the rotating linkage ring 401 rotates on the limiting ring 400 through the limiting groove 403, the linkage ring 401 rotates and drives the fixed toothed ring 402 to rotate, the rotating fixed toothed ring 402 drives the adjusting rod 301 to rotate through the cooperation with the linkage gear 302, the rotating adjusting rod 301 drives the movable clamping plate 303 to be far away from the positioning inserting rod 208, the limitation on the positioning collar 207 can be removed at the moment, then pulling handle 205, handle 205 can drive two connecting rods 204 upset, two connecting rods 204 of upset can drive two linkage turntables 203 respectively and rotate, pivoted linkage turntables 203 can be through the linkage hole 211 on spacing axle 212, avoid appearing the skew, the one end that can drive two gangbars 206 rotates and remove when linkage turntables 203 rotates, and then make the other end of gangbar 206 pull the location lantern ring 207 through the cooperation of rotation hole 209 with fixed axle 210 and slide on valve pipe 104 level, the location lantern ring 207 can extrude auxiliary spring 213 and keep away from two flange 102 when horizontal slip, the location lantern ring 207 removes and can drive the installation hole 103 on two flange 102 of location plunger 208 break away from, thereby can release the connection between check valve 100 and the connecting pipe 101, thereby the convenience is dismantled check valve 100 and is overhauld.

Further, the positioning structure comprises two linkage turntables 203, the two linkage turntables 203 are respectively rotatably installed on one sides of the two fixing plates 202, which are far away from each other, the connecting rods 204 are fixedly installed on one sides of the two linkage turntables 203, which are far away from each other, the same handle 205 is fixedly installed on one side of the two connecting rods 204, the two linkage rods 206 are rotatably installed on the two linkage turntables 203, the same positioning collar 207 is rotatably installed on one side of the two linkage rods 206, which are near each other, of the same side, the positioning collar 207 is slidably sleeved on the valve pipe 104, the two connecting flanges 102 on the same side are movably installed in the same positioning collar 207, the positioning plunger 208 is fixedly installed on the inner wall of the positioning collar 207, the positioning plunger 208 is movably installed in the two installing holes 103 on the same side, one end of the auxiliary spring 213 is fixedly installed on one side of the positioning collar 207, the other end of the auxiliary spring 213 is fixedly arranged at one side of the fixed ring 200, the auxiliary spring 213 is sleeved on the valve tube 104 in a sliding manner, the handle 205 is pulled, the handle 205 drives the two connecting rods 204 to turn over, the two turned connecting rods 204 respectively drive the two linkage turntables 203 to rotate, the rotating linkage turntables 203 rotate on the limiting shaft 212 through the linkage holes 211 to avoid deflection, the linkage turntables 203 rotate and simultaneously drive one ends of the two linkage rods 206 to rotate and move, the other ends of the linkage rods 206 pull the positioning lantern ring 207 to horizontally slide on the valve tube 104 through the cooperation of the rotation holes 209 and the fixed shafts 210, the positioning lantern ring 207 horizontally slides and simultaneously extrudes the auxiliary spring 213 and is far away from the two connecting flanges 102, the positioning lantern ring 207 moves to drive the positioning inserting rods 208 to be separated from the mounting holes 103 on the two connecting flanges 102, thereby enabling the connection between the check valve 100 and the connection pipe 101 to be released.

Further, the linkage rod 206 is provided with a rotation hole 209, the rotation hole 209 is rotationally provided with a fixed shaft 210, the fixed shaft 210 is fixedly provided with a positioning collar 207, the linkage turntable 203 is provided with a linkage hole 211, the limiting shaft 212 is rotationally provided with a limiting shaft 212, the limiting shaft 212 is fixedly provided with one side of the linkage turntable 203, one ends of the two linkage rods 206 are driven to rotate and move while the linkage turntable 203 rotates, and then the other ends of the linkage rods 206 pull the positioning collar 207 to horizontally slide on the valve tube 104 through the cooperation of the rotation hole 209 and the fixed shaft 210, and the rotating linkage turntable 203 rotates on the limiting shaft 212 through the linkage hole 211 to avoid deviation.

Further, the limit structure comprises a plurality of adjusting rods 301, the adjusting rods 301 are slidably mounted on the fixed blocks 300, the fixed blocks 300 are fixedly mounted on the positioning collar 207, the two ends of the adjusting rods 301 are respectively fixedly provided with a linkage gear 302 and a movable clamping plate 303, clamping grooves 304 are formed in the movable clamping plate 303, the positioning plunger 208 is movably mounted in the clamping grooves 304, the linkage ring 401 moves and pushes the linkage gear 302 to move, the movement of the linkage gear 302 drives the adjusting rods 301 to slide in the movable holes 306 in the fixed blocks 300, further, the offset of the adjusting rods 301 is avoided, the moving adjusting rods 301 drive the clamping grooves 304 in the movable clamping plate 303 to separate from the positioning plunger 208, and therefore the limitation on the movable clamping plate 303 and the positioning plunger 208 can be relieved.

Further, the adjusting rod 301 is slidably sleeved with the limiting spring 305, one end of the limiting spring 305 is fixedly arranged on one side of the fixed block 300, the other end of the limiting spring 305 is in contact with the linkage gear 302, the linkage ring 401 moves while pushing the linkage gear 302 to move and squeeze the limiting spring 305, the linkage ring 401 is loosened, and at the moment, the limiting spring 305 can restore to the original position after pushing the linkage gear 302.

Further, the fixed block 300 is provided with a movable hole 306, the adjusting rod 301 is slidably mounted in the movable hole 306, and the movement of the linkage gear 302 drives the adjusting rod 301 to slide in the movable hole 306 on the fixed block 300, so as to avoid the offset of the adjusting rod 301.

Further, the linkage structure comprises a linkage ring 401, the linkage ring 401 is movably mounted on the limiting ring 400, the limiting ring 400 is fixedly mounted on one side of the positioning collar 207, a fixed toothed ring 402 is fixedly mounted on the linkage ring 401, the fixed toothed ring 402 is meshed with the linkage gear 302, the linkage rings 401 on two sides are pushed, when the linkage ring 401 moves, the linkage ring 401 moves on the limiting ring 400 through a limiting groove 403, the linkage gear 302 is pushed to move, the linkage ring 401 is rotated, the rotating linkage ring 401 rotates on the limiting ring 400 through the limiting groove 403, the fixed toothed ring 402 is driven to rotate when the linkage ring 401 rotates, and then the rotating fixed toothed ring 402 drives the adjusting rod 301 to rotate through cooperation with the linkage gear 302.

Further, a limiting groove 403 is formed on the linkage ring 401, the limiting ring 400 is movably mounted in the limiting groove 403, and the linkage ring 401 moves on the limiting ring 400 through the limiting groove 403 when moving.

The working principle of the utility model is as follows:

when the check valve 100 is damaged, the linkage rings 401 on two sides are pushed to move on the limiting ring 400 through the limiting grooves 403, the linkage rings 401 move and push the linkage gears 302 to move and press the limiting springs 305, the movement of the linkage gears 302 drives the adjusting rods 301 to slide in the movable holes 306 on the fixed blocks 300, the offset of the adjusting rods 301 is avoided, the moving adjusting rods 301 drive the clamping grooves 304 on the movable clamping plates 303 to separate from the positioning inserting rods 208, the limitation on the movable clamping plates 303 and the positioning inserting rods 208 can be relieved, then the linkage rings 401 are rotated, the rotating linkage rings 401 rotate on the limiting rings 400 through the limiting grooves 403, the fixed toothed rings 402 are driven to rotate while the linkage rings 401 rotate, the rotating fixed toothed rings 402 drive the adjusting rods 301 to rotate through the cooperation with the linkage gears 302, and the rotating adjusting rods 301 drive the movable clamping plates 303 to be far away from the positioning inserting rods 208, at this time, the restriction on the positioning collar 207 can be removed, then the handle 205 is pulled, the handle 205 drives the two connecting rods 204 to turn over, the two turned connecting rods 204 respectively drive the two linkage turntables 203 to rotate, the rotating linkage turntables 203 rotate on the limiting shafts 212 through the linkage holes 211, deflection is avoided, one ends of the two linkage rods 206 are driven to rotate and move while the linkage turntables 203 rotate, the other ends of the linkage rods 206 pull the positioning collar 207 to horizontally slide on the valve tube 104 through the cooperation of the rotation holes 209 and the fixed shafts 210, the positioning collar 207 horizontally slides and simultaneously presses the auxiliary springs 213 and is far away from the two connecting flanges 102, the positioning collar 207 moves to drive the positioning plunger 208 to be separated from the mounting holes 103 on the two connecting flanges 102, and accordingly connection between the check valve 100 and the connecting pipes 101 can be removed, therefore, the check valve 100 is convenient to disassemble and overhaul, when the check valve 100 is installed, the check valve 100 and the connecting flange 102 on the connecting pipe 101 are only required to be realigned, then the handle 205 is loosened, at the moment, the auxiliary spring 213 can push the positioning collar 207 to restore to the original position and drive the positioning plunger 208 to be reinserted into the corresponding two connecting flanges 102, the preliminary positioning of the check valve 100 and the connecting pipe 101 is realized, then the clamping groove 304 on the movable clamping plate 303 is aligned with the positioning plunger 208 by reversely rotating the linkage ring 401, the linkage ring 401 is loosened, at the moment, the limiting spring 305 can restore to the original position by pushing the linkage gear 302, and the reset linkage gear 302 can drive the movable clamping plate 303 to restore to the original position by the adjusting rod 301, so that the clamping groove 304 on the movable clamping plate 303 is sleeved on the positioning plunger 208 again, and the fixing operation is completed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

1. The utility model provides a butt joint subassembly of check valve, includes check valve (100) and connecting pipe (101), be equipped with two valve pipes (104) on check valve (100), equal fixed mounting has flange (102) on two valve pipes (104) and two connecting pipes (101), is located two flange (102) of same one side and contacts, has all seted up a plurality of mounting holes (103) on four flange (102), its characterized in that: two all fixed ring (200) that has cup jointed on valve pipe (104), two dead levers (201) are all fixed mounting on two dead levers (200), two fixed plates (202) are all installed to fixed mounting on four dead levers (201), all rotate on two fixed plates (202) and install location structure, fixed mounting has a plurality of fixed blocks (300) on the location structure, slidable mounting has limit structure on fixed block (300), fixed mounting has limit ring (400) on the location structure, movable mounting has linkage structure on limit ring (400).

2. The check valve docking assembly of claim 1, wherein: the positioning structure comprises two linkage turntables (203), the two linkage turntables (203) are respectively rotatably arranged on one sides of the two fixed plates (202) which are far away from each other, connecting rods (204) are fixedly arranged on one sides of the two linkage turntables (203) which are far away from each other, one side of each of the two connecting rods (204) is fixedly provided with the same handle (205), two linkage turntables (203) are rotatably arranged on the other sides of the two linkage turntables (203), one positioning sleeve ring (207) is rotatably arranged on one side of each of the two linkage turntables (206) which are close to each other, the positioning sleeve ring (207) is in sliding sleeve connection with a valve pipe (104), two connecting flanges (102) which are arranged on the same side are movably arranged in one positioning sleeve ring (207), a plurality of positioning inserting rods (208) are fixedly arranged on the inner wall of the positioning sleeve ring (207) which is fixedly arranged in two mounting holes (103) which are arranged on the same side, one side of each positioning sleeve ring (207) is fixedly provided with one end of an auxiliary spring (213), one end of the auxiliary spring (213) is fixedly arranged on one side of the other fixed ring (200), and the other end of the auxiliary spring (213) is in sliding sleeve connection with the valve pipe (213).

3. The docking assembly of a check valve of claim 2, wherein: the linkage rod (206) is provided with a rotation hole (209), the rotation hole (209) is rotationally provided with a fixed shaft (210), the fixed shaft (210) is fixedly arranged on the positioning sleeve ring (207), the linkage rotary table (203) is provided with a linkage hole (211), the limiting shaft (212) is rotationally provided with a limiting shaft (212), and the limiting shaft (212) is fixedly arranged on one side of the linkage rotary table (203).

4. The check valve docking assembly of claim 1, wherein: the limiting structure comprises a plurality of adjusting rods (301), the adjusting rods (301) are slidably mounted on the fixed blocks (300), the fixed blocks (300) are fixedly mounted on the positioning lantern rings (207), the two ends of the adjusting rods (301) are respectively and fixedly provided with a linkage gear (302) and a movable clamping plate (303), clamping grooves (304) are formed in the movable clamping plates (303), and the positioning inserting rods (208) are movably mounted in the clamping grooves (304).

5. The check valve docking assembly of claim 4, wherein: and the adjusting rod (301) is sleeved with a limiting spring (305) in a sliding manner, one end of the limiting spring (305) is fixedly arranged on one side of the fixed block (300), and the other end of the limiting spring (305) is contacted with the linkage gear (302).

6. The check valve docking assembly of claim 1, wherein: the fixed block (300) is provided with a movable hole (306), and the adjusting rod (301) is slidably arranged in the movable hole (306).

7. The check valve docking assembly of claim 1, wherein: the linkage structure comprises a linkage ring (401), wherein the linkage ring (401) is movably arranged on the limiting ring (400), the limiting ring (400) is fixedly arranged on one side of the positioning collar (207), a fixed toothed ring (402) is fixedly arranged on the linkage ring (401), and the fixed toothed ring (402) is meshed with the linkage gear (302).

8. The check valve docking assembly of claim 7, wherein: the linkage ring (401) is provided with a limiting groove (403), and the limiting ring (400) is movably arranged in the limiting groove (403).