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CN-224214767-U - Swing check valve mechanism

CN224214767UCN 224214767 UCN224214767 UCN 224214767UCN-224214767-U

Abstract

The utility model discloses a swing check valve mechanism, which belongs to the technical field of check valves and comprises a valve body, wherein two ends of the valve body are connected with a water inlet pipe and a water outlet pipe, a valve plate is rotatably connected with the inner wall of the valve body through a reset hinge shaft seat, and a side support mechanism is used for supporting two sides of the valve plate. The valve plate rolling support device has the technical key points that when the valve plate rotates, the rolling support piece rolls in the guide rail synchronously, based on the structural form, enough and symmetrical support can be provided for two sides of the valve plate, the abrasion speed of the hinge part of the valve plate is greatly reduced, the condition that the valve plate swings and deviates in the rotating process can be effectively avoided, and meanwhile, the normal rotation of the valve plate is not influenced by the support mode.

Inventors

  • JIANG JIAN
  • ZHU DANDAN
  • ZHU GAOXING

Assignees

  • 浙江卡博铜业有限公司

Dates

Publication Date
20260508
Application Date
20250513

Claims (7)

  1. 1. A swing check valve mechanism, comprising: A water inlet pipe (2) and a water outlet pipe (3) are respectively connected at two ends of the valve body (1) in a sealing way; The valve plate (5) is rotationally connected with the inner wall of the valve body (1) through the reset hinge shaft seat (4), and is separated from the inner end of the water inlet pipe (2) when the valve plate (5) is rotated upwards, and is attached to the inner end of the water inlet pipe (2) when the valve plate (5) is rotated downwards; The side supporting mechanism (6) is used for supporting two sides of the valve plate (5) and playing a limiting role on the whole valve plate (5); The side supporting mechanism (6) comprises a guide rail and rolling supporting pieces, wherein the guide rail is fixedly arranged on the inner wall of the valve body (1), the rolling supporting pieces are arranged on two sides of the valve plate (5), and the rolling supporting pieces roll in the guide rail.
  2. 2. A swing check valve mechanism according to claim 1, wherein the guide rail comprises Qu Caoban (63) covered by a cover plate (64) and the rolling support comprises a roller (62) rolling in a curved groove plate (63) connected to the side of the valve plate (5) by a wheel axle (61).
  3. 3. The swing check valve mechanism according to claim 1, wherein the reset hinge shaft seat (4) comprises a fixed seat (41) fixedly arranged on the inner wall of the valve body (1), a rotating shaft (42) is arranged in the fixed seat, a rotating cylinder (43) in rotating connection is sleeved in the middle of the rotating shaft (42), and the rotating cylinder (43) is used for fixedly connecting the valve plate (5).
  4. 4. The swing check valve mechanism according to claim 3, wherein the rotating cylinder (43) and the fixing seat (41) are fixedly provided with matched end pieces (44), a reset torsion spring (45) sleeved on the rotating shaft (42) is arranged between the matched end pieces (44), and two ends of the reset torsion spring (45) are fixedly connected with the corresponding matched end pieces (44) respectively.
  5. 5. A swing check valve mechanism according to claim 3, wherein the valve plate (5) comprises a base plate (52) on which a connecting rod (51) for fixedly connecting with the rotary cylinder (43) is arranged, and a rubber pad (53) matched with the inner end of the water inlet pipe (2) is arranged on the inner end surface of the base plate (52).
  6. 6. The swing check valve mechanism according to claim 5, wherein the base plate (52) is provided with a plurality of insertion holes (521), the rubber pad (53) is fixedly provided with insertion convex shafts (531) corresponding to the insertion holes (521), and the insertion holes (521) are in insertion connection with the insertion convex shafts (531).
  7. 7. The swing check valve mechanism according to claim 1, wherein the valve body (1) is provided with a valve cover (7) on the upper cover, the valve cover and the valve cover are fixedly connected through a connecting bolt (71), and the top end of the valve body (1) is provided with a mounting groove (11) in which a sealing rubber ring (12) is mounted.

Description

Swing check valve mechanism Technical Field The utility model relates to the technical field of check valves, in particular to a swing check valve mechanism. Background The swing check valve mainly comprises a valve body, a valve cover, a valve clack, a rocker and the like, and the working principle of the swing check valve is based on the fluid pressure and the dead weight of the valve clack. When the fluid stops flowing or the flow direction is opposite, the valve clack rotates around the pin shaft under the action of dead weight and the pressure of countercurrent fluid and closes the valve to prevent the medium from flowing backwards. The utility model with the publication number of CN218440815U discloses a swing check valve with a slow-closing mechanism, which utilizes the mutual cooperation of a telescopic rod, a supporting block, a spring, a fastening bolt and a nut to realize slow opening and slow closing of a valve clack on a valve seat, thereby avoiding mechanical abrasion caused by violent opening and closing and prolonging the service life. In a common check valve, a valve plate is hinged with a valve body only at the top end, all forces of the valve plate during opening and closing rotation are borne by a hinged part due to the fact that supporting measures are lacked on two sides of the valve plate, so that the hinged part has obvious friction conditions, when the structure of the hinged part is worn to a certain extent, the valve plate swings during rotation, deviation occurs during resetting, the check effect of the valve is affected, in the valve body, although a telescopic rod is arranged, the telescopic rod has a certain supporting effect, and still cannot provide enough supporting force to ensure that the valve plate does not swing and deflect due to the fact that the telescopic rod is arranged in the center of the valve plate. Disclosure of utility model The utility model aims to solve the technical problem of providing a swing check valve mechanism, wherein a side supporting mechanism is arranged in the check valve and comprises a guide rail and rolling supporting pieces, wherein the guide rail is fixedly arranged on the inner wall of a valve body, the rolling supporting pieces are arranged on two sides of a valve plate, when the valve plate rotates, the rolling supporting pieces synchronously roll in the guide rail, based on the structural form, enough and symmetrical supporting can be provided on two sides of the valve plate, the abrasion speed of the hinge part of the valve plate is greatly reduced, the condition that the valve plate swings and deflects in the rotating process can be effectively avoided, meanwhile, the normal rotation of the valve plate is not influenced by the supporting mode, and the technical problem that the valve plate lacks effective lateral supporting in the comparison technology and is easy to swing and deflect due to abrasion after long-time use is solved. The technical scheme adopted by the embodiment of the application for solving the technical problems is as follows: The utility model provides a swing check valve mechanism, includes the valve body, and its both ends are airtight connection respectively has inlet tube and outlet pipe, and the valve block, and it is connected with the valve body inner wall rotation through reset hinge axle bed, when the valve block rotates and turns over, separates with the inlet tube inner port, when the valve block rotates down, laminates with the inlet tube inner port, and side support mechanism, it is used for providing the support to the valve block both sides to play limiting displacement to the valve block is whole, wherein, side support mechanism includes guide rail and rolling support piece, and wherein, the fixed setting of guide rail is at the valve body inner wall, and rolling support piece installs in the valve block both sides, and rolling support piece rolls in the guide rail, when the valve block rotates, rolling support piece rolls in the guide rail in step, based on above-mentioned structural style, can provide the sufficient and symmetrical support of valve block both sides, has reduced the valve block hinge department wearing and tearing speed by a wide margin, can effectively avoid the valve block to appear swinging the circumstances of skew in the rotation process, and this kind of support mode can not influence the normal rotation of valve block simultaneously. In one possible implementation, the guide rail includes a curved groove plate, the upper cover of which is provided with a cover plate, the rolling support member includes a roller rolling in the curved groove plate, which is connected to the side of the valve plate through a wheel shaft, and in the above structure, the curved groove plate is used to accommodate and guide the roller to roll so as to fit the movement track of the valve plate, and the cover plate can prevent the roller from shifting during rolling. In one possible implementation