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CN-121977814-A - Check valve test equipment

CN121977814ACN 121977814 ACN121977814 ACN 121977814ACN-121977814-A

Abstract

The invention discloses check valve test equipment, which relates to the technical field of check valve test and comprises a test bench, wherein a pool is arranged in the test bench, a supporting plate is fixedly arranged on one side of the test bench, a top plate is fixedly arranged on the top of the supporting plate, and a hollow steel pipe is arranged in the top plate, and the check valve test equipment has the beneficial effects that: the test method is characterized in that after a transmission shaft is driven by a double-shaft motor and a gear to rotate, the gear is meshed with a rack, a pressing plate is driven to move downwards through the rack, the pressing plate presses down a supporting plate and a hollow steel pipe, a sealing gasket at the bottom of the hollow steel pipe is connected with the top of a butterfly check valve in a sealing mode, the butterfly check valve is pushed to move downwards and submerge into water in a water pool, then after a vacuum pump body is opened, the vacuum pump body pumps air in the hollow steel pipe through a vacuumizing hose, the inside of the hollow steel pipe is vacuumized, the condition of the water surface is observed, the numerical value of a vacuum pressure gauge on the vacuum pressure gauge is read when water is sucked into the hollow steel pipe, and the opening pressure of the butterfly check valve can be tested.

Inventors

  • JIN XIAOWEI
  • WANG HUIDA

Assignees

  • 中船澄西船舶修造有限公司

Dates

Publication Date
20260505
Application Date
20260116

Claims (10)

  1. 1. The check valve test equipment comprises a test bench (1) and is characterized in that a pool (2) is arranged in the test bench (1), a supporting plate (3) is fixedly arranged on one side of the test bench (1), a top plate (4) is fixedly arranged at the top of the supporting plate (3), a hollow steel pipe (5) is arranged in the top plate (4), a first spring (6) is arranged at the top of the top plate (4) and positioned on the outer side of the hollow steel pipe (5), a supporting plate (7) is fixedly arranged at the top of the outer side of the hollow steel pipe (5), the supporting plate (7) is matched with the first spring (6), a sealing top cover (8) is arranged at the top of the hollow steel pipe (5), a vacuum pump hose connector (9) is arranged in the sealing top cover (8), a mounting ring (10) is arranged on the outer side thread at the bottom of the hollow steel pipe (5), a vacuum pump body (12) is fixedly arranged on one side of the top plate (4), a vacuum pump body (12) is fixedly arranged at the input end of the vacuum pump body (12), a plurality of vacuum pump hoses (13) are fixedly connected with one ends of the vacuum pump hoses (13) and one ends (13) of the vacuum pump hoses (13) are fixedly connected with one slide rods (13), one end of the sliding rod (14) is provided with a placing plate (15), a first U-shaped groove (16) is formed in the placing plate (15), a butterfly check valve (17) is placed on the inner side of the first U-shaped groove (16), and the sealing gasket (11) is matched with the butterfly check valve (17).
  2. 2. The check valve testing device according to claim 1, wherein the positioning groove (18) is formed in the placing plate (15), the butterfly check valve (17) is matched with the positioning groove (18), the positioning groove (19) is formed in the placing plate (15) and located at one side of the first U-shaped groove (16), the butterfly check valve (17) is matched with the positioning groove (19), the threaded head (20) is arranged at one end of the sliding rod (14), a plurality of threaded holes (21) are formed in the top of the placing plate (15), the threaded head (20) is matched with the threaded holes (21), the limiting plate (22) is fixedly arranged at the other end of the sliding rod (14), the second spring (23) is mounted on the outer side of the sliding rod (14), and the second spring (23) is matched with the limiting plate (22).
  3. 3. The check valve testing device according to claim 1, wherein one side of the top plate (4) is fixedly provided with a mounting plate (24), two guide rods (25) are slidably mounted in the mounting plate (24), a connecting plate (26) is fixedly mounted at the top of the guide rods (25), a pressing plate (27) is fixedly mounted on one side of the connecting plate (26), the pressing plate (27) is matched with the supporting plate (7), a second U-shaped groove (28) is formed in the pressing plate (27), the second U-shaped groove (28) is matched with the sealing top cover (8), racks (29) are fixedly mounted on two sides of the connecting plate (26), a motor base (30) is fixedly mounted on one side of the testing table (1), a double-shaft motor (31) is fixedly mounted in the middle of the top of the motor base (30), a transmission shaft (32) is fixedly mounted at the output end of the transmission shaft (32), a gear (33) is fixedly mounted at one end of the transmission shaft (32), and the gear (33) is matched with the racks (29).
  4. 4. The check valve testing device according to claim 1, wherein a vacuum pressure gauge (35) is arranged on one side of the top of the test bench (1), and the vacuum pump body (12) is electrically connected with the vacuum pressure gauge (35).
  5. 5. The check valve testing device according to claim 3, wherein the shaft brackets (34) are fixedly arranged on two sides of the top of the motor base (30), and the transmission shaft (32) is rotatably connected with the shaft brackets (34).
  6. 6. The check valve testing device according to claim 1, wherein the top plate (4) is internally provided with a through hole, and the hollow steel tube (5) penetrates through the through hole.
  7. 7. A check valve testing apparatus according to claim 1, wherein the top plate (4) has a plurality of holes formed therein for engaging the slide bar (14).
  8. 8. The check valve testing device according to claim 3, wherein the guide rod (25) is slidably connected to the motor base (30), and holes matched with the guide rod (25) are formed in the mounting plate (24) and the motor base (30).
  9. 9. The check valve testing device according to claim 1, wherein threads matched with the mounting ring (10) are formed on the outer side of the bottom of the hollow steel tube (5).
  10. 10. A check valve testing apparatus according to claim 1, wherein a control panel is provided on one side of the test bench (1).

Description

Check valve test equipment Technical Field The invention relates to the technical field of check valve testing, in particular to check valve testing equipment. Background The check valve is a valve which can stop the backflow of the medium by the action of the opening and closing part generated by the self weight and the pressure of the medium, belongs to automatic valves, and is mainly used for a pipeline in which the medium flows unidirectionally, and only allows the medium to flow in one direction, thereby preventing accidents. In this case, the forward flow and reverse cut-off functions of the check valve are particularly important, and a test is required before the check valve is put into use. Currently, the existing intelligent technology test ship full cabin bottom water system is provided with a plurality of butterfly check valves, the opening pressure of the check valves is designed to be-0.10 Mpa, the bilge pump is designed to be-0.05 Mpa vacuum, in order to prevent the butterfly check valves from being opened under the pressure condition, in addition, after the production, some check valves also need to be tested for opening pressure values, and the check valves often need to be tested in sequence, so we propose check valve test equipment. Disclosure of Invention Aiming at the defects of the prior art, the invention provides check valve testing equipment, which solves the problems in the background art. The check valve testing equipment comprises a test bench, wherein a pool is arranged in the test bench, a supporting plate is fixedly arranged on one side of the test bench, a top plate is fixedly arranged at the top of the supporting plate, a hollow steel pipe is arranged in the top plate, a first spring is arranged on the top of the top plate and positioned on the outer side of the hollow steel pipe, a supporting plate is fixedly arranged on the top of the outer side of the hollow steel pipe, the supporting plate is matched with the first spring, a sealing top cover is arranged on the top of the hollow steel pipe, a vacuum pump hose joint is arranged in the sealing top cover, a mounting ring is arranged on the outer side of the bottom of the hollow steel pipe in a threaded manner, a sealing gasket is arranged on the bottom of the mounting ring, a vacuum pump body is fixedly arranged on one side of the top plate, a plurality of sliding rods are fixedly arranged at the input end of the vacuum pump body, one end of the vacuum pump body is fixedly connected with the vacuum pump hose joint, a placing plate is arranged at one end of the top plate in a sliding manner, a first U-shaped groove is formed in the placing plate, and the first U-shaped groove is matched with the butterfly valve. Further, positioning grooves are formed in the placing plate, the butterfly check valve is matched with the positioning grooves, positioning grooves are formed in the placing plate and located on one side of the first U-shaped groove, the butterfly check valve is matched with the positioning grooves, a threaded head is arranged at one end of the sliding rod, a plurality of threaded holes are formed in the top of the placing plate, the threaded head is matched with the threaded holes, a limiting plate is fixedly arranged at the other end of the sliding rod, a second spring is arranged on the outer side of the sliding rod, and the second spring is matched with the limiting plate. Further, one side fixed mounting of roof has the mounting panel, the inside slidable mounting of mounting panel has two guide arms, the top fixed mounting of guide arm has the connecting plate, one side fixed mounting of connecting plate has the clamp plate, clamp plate and layer board cooperation, the second U type groove has been seted up to the inside of clamp plate, the second U type groove cooperates with sealed top cap, the equal fixed mounting in both sides of connecting plate has the rack, one side fixed mounting of testboard has the motor cabinet, the middle part fixed mounting at motor cabinet top has the biax motor, the output fixed mounting of biax motor has the transmission shaft, the one end fixed mounting of transmission shaft has the gear, gear and rack cooperation. Further, one side of test bench top is provided with the vacuum pressure gauge, the vacuum pump body and vacuum pressure gauge electric connection. Furthermore, the two sides of the top of the motor base are fixedly provided with shaft brackets, and the transmission shaft is rotationally connected with the shaft brackets. Further, a through hole is formed in the top plate, and the hollow steel pipe penetrates through the through hole. Further, a plurality of holes matched with the sliding rods are formed in the top plate. Further, guide arm and motor cabinet sliding connection, mounting panel and motor cabinet's inside all has seted up and has been led bar complex hole. Further, threads matched with the mounting ring are formed on the outer side of the bottom of the