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CN-224214336-U - Novel air sac pump

CN224214336UCN 224214336 UCN224214336 UCN 224214336UCN-224214336-U

Abstract

The application relates to the technical field of pump equipment, in particular to a novel air bag pump. The bellows pump comprises a pump body and a reversing valve, wherein two compression cavities communicated with ball valves are arranged at the left end and the right end of the pump body, corrugated pipes are respectively arranged in the two compression cavities, threaded end pipes are respectively arranged at the outer ends of the two compression cavities, end covers are connected to the threaded end pipes in a threaded mode, the corrugated pipes are respectively fixedly pressed in the compression cavities by the end covers, an air inlet hole and an air outlet hole communicated with the inside of the corrugated pipes are arranged on the end covers, the air inlet hole and the air outlet hole are respectively connected with an air inlet pipe joint and an air outlet pipe joint, the air inlet pipe joint and the air outlet pipe joint are connected with the reversing valve through air pipes, mounting counter bores communicated with the air outlet holes are formed in the inner sides of the end covers, piston assemblies are arranged in the mounting counter bores, the front ends of piston rods of the piston assemblies are supported in the center of the bellows, a plurality of shock absorption strips are arranged between the piston assemblies and the inner sides of the end covers at intervals, vibration magnitude is effectively reduced, vibration and noise of the pump is effectively solved from the source.

Inventors

  • YU HONGWEI
  • JIA LINGYAN
  • WU YUE

Assignees

  • 青岛贝斯兰半导体科技有限公司

Dates

Publication Date
20260508
Application Date
20250430

Claims (10)

  1. 1. The novel air bag pump is characterized by comprising a pump body and a reversing valve; The pump body is provided with a threaded end pipe at the outer ends of the two compression cavities, an end cover is connected with the threaded end pipe, the end cover is used for fixedly compressing the corrugated pipe in the compression cavities, an air inlet hole and an air outlet hole communicated with the corrugated pipe are arranged on the end cover, the air inlet hole and the air outlet hole are respectively connected with an air inlet pipe joint and an air outlet pipe joint, the air inlet pipe joint and the air outlet pipe joint are connected with a reversing valve through an air duct, an installation counter bore communicated with the air outlet hole is formed in the inner side of the end cover, a piston assembly is arranged in the installation counter bore, the front end of a piston rod of the piston assembly is supported in the center of the air bag, and a plurality of shock absorbing strips are arranged between the piston assembly and the inner side of the end cover at intervals.
  2. 2. The novel air bag pump according to claim 1, wherein the shock-absorbing block is made of an elastic material.
  3. 3. The novel air bag pump according to claim 1, wherein the air inlet pipe joint and the air outlet pipe joint comprise an inner pipe and a sleeve, and a cavity is formed between the inner pipe and the sleeve.
  4. 4. A novel air bag pump according to claim 3, wherein a first elastic interlayer or a plurality of damping springs are arranged in the cavity.
  5. 5. The novel air bag pump according to claim 4, wherein the first elastic interlayer is made of any one of PU, TPU and rubber.
  6. 6. The novel air bag pump according to claim 4 or 5, wherein through holes are further formed in the first elastic interlayer at intervals.
  7. 7. The novel air bag pump according to claim 1 is characterized in that the pump body is provided with at least two check valves, a runner communicated with the check valves is arranged in the pump body, and two ends of the runner are respectively communicated with a liquid inlet pipe and a liquid outlet pipe.
  8. 8. The novel air bag pump according to claim 7, wherein the liquid inlet pipe is close to the pump body section and is further provided with a split-flow pipe, the liquid inlet pipe and the split-flow pipe are of an integrated structure, a plurality of split-flow holes are formed in the split-flow pipe at intervals, and the split-flow holes and the split-flow pipe are of an integrated structure.
  9. 9. The novel air bag pump according to claim 1, further comprising a base, wherein the base comprises a plurality of support columns, support seats and a bottom plate which are arranged from top to bottom, the support columns are used for supporting the pump body, and the support columns and the support seats are made of alloy with surfaces coated with fluorine materials.
  10. 10. The novel air bag pump according to claim 9, wherein a second elastic interlayer is further arranged between the supporting seat and the bottom plate.

Description

Novel air sac pump Technical Field The application relates to the technical field of pump equipment, in particular to a novel air bag pump. Background The air bag pump is a pump which uses compressed air as a power source and controls the compressed air to sequentially enter two gas phase working cavities to work by a reversing valve, and the pump is used for realizing the delivery of liquid by utilizing the alternate imbibition and liquid discharge of a liquid phase cavity. The air bag pump is generally made of fluorine materials, has the advantages of high cleanliness, corrosion resistance, long service life, convenient maintenance and the like, is suitable for conveying various corrosive gases, and is widely applied to the fields of medical equipment, industrial automation, laboratory instruments and other fields requiring accurate control of gas flow. The wind bag pump inevitably generates larger vibration due to the high-frequency reciprocating motion of the transmission mechanism and the wind bag in the working process, and the fluctuation of the air source and the conveying medium also causes the vibration of the wind bag pump, and the long-time vibration not only can affect the tightness of the wind bag component, but also affects the service life of the pump due to the connection stability between the pump and the pipeline and between the pump and the base, and can cause great noise pollution. For vibration and noise reduction of the air bag pump, a vibration damping base, a reinforcing silencer and other methods are mainly adopted, such as a pump seat with vibration damping and noise reduction functions disclosed in patent CN118009150A, an air bag pump silencer disclosed in patent CN221879630U and the like. However, the method does not fundamentally solve the problem of vibration of the air sac pump, and has limited effect on vibration absorption and noise reduction. Disclosure of utility model In order to solve the problems, the application provides a novel air bag pump, which can solve the vibration of the air bag pump from the source, reduce the generation of noise and prolong the service life of the air bag pump. In order to achieve the above purpose, the technical scheme adopted by the application is as follows: A novel air sac pump comprises a pump body and a reversing valve; The pump body is provided with a threaded end pipe at the outer end of the two compression cavities, an end cover is connected with the threaded end pipe, the end cover is used for fixedly compressing the corrugated pipe in the compression cavities, an air inlet hole and an air outlet hole which are communicated with the inside of the corrugated pipe are arranged on the end cover, the air inlet hole and the air outlet hole are respectively connected with an air inlet pipe joint and an air outlet pipe joint, and the air inlet pipe joint and the air outlet pipe joint are connected with a reversing valve through an air duct; The inner side of the end cover is provided with a mounting counter bore communicated with the air outlet, a piston assembly is arranged in the mounting counter bore, the front end of a piston rod of the piston assembly is supported at the center of the air sac, and a plurality of damping strips are arranged between the piston assembly and the inner side of the end cover at intervals. As a further proposal, the shock absorbing strip is made of elastic material. As a further scheme, the air inlet pipe joint and the air outlet pipe joint both comprise an inner pipe and a sleeve, a cavity is formed between the inner pipe and the sleeve, and a first elastic interlayer or a plurality of damping springs are arranged in the cavity. The air source passes through the air inlet pipe joint, and vibration caused by fluctuating air flow is buffered through the cavity in the air inlet pipe joint and the damping spring, so that the air flow entering the air bag is more stable, and the influence of reciprocating motion of the air bag caused by unstable air flow is reduced. As a further scheme, the material of the first elastic interlayer is any one of PU, TPU and rubber. As a further scheme, still the interval is provided with the through-hole that runs through on the first elasticity intermediate layer, reduces the transmission of vibrations, increases stability. As a further scheme, the pump body is provided with at least two check valves, a runner communicated with the check valves is arranged in the pump body, and two ends of the runner are respectively communicated with the liquid inlet pipe and the liquid outlet pipe. As a further scheme, the liquid inlet pipe is further provided with a split-flow pipe close to the pump body section, the liquid inlet pipe and the split-flow pipe are of an integrated structure, a plurality of split-flow holes are formed in the split-flow pipe at intervals, and the split-flow holes and the split-flow pipe are of an integrated structure. The moving liquid medium is divided, so that