Search

CN-224221743-U - Piezoelectric injection valve with modularized driving

CN224221743UCN 224221743 UCN224221743 UCN 224221743UCN-224221743-U

Abstract

The utility model relates to the technical field of piezoelectric ceramic injection valves and discloses a piezoelectric injection valve with modularized driving, which comprises a frame body, wherein a driving module is arranged on the inner bottom wall of the frame body and used for driving the driving module to work, a flow passage assembly is arranged at the bottom of the frame body and used for completing circulation of materials, a plunger rod module is arranged on the left side of the inner wall of the driving module and used for connecting the driving module to enable a valve body to complete impact action, the driving module comprises a main cushion block, and the bottom of the main cushion block is arranged on the right side of the inner bottom wall of the frame body. In the utility model, the positioning structure of the piezoelectric ceramic and the pre-tightening screw is arranged on the backing plate, so that the mutual vertical stress of the amplifier and the piezoelectric ceramic is ensured during movement, and the driving module is installed in the frame body as an integral mechanism, thereby achieving the purposes of improving the production efficiency and reducing the repairing cost.

Inventors

  • HUANG BO

Assignees

  • 上海序蓝电子科技有限公司

Dates

Publication Date
20260512
Application Date
20250314

Claims (7)

  1. 1. The piezoelectric injection valve with the modularized drive comprises a frame body (1) and is characterized in that a drive module (5) is arranged on the inner bottom wall of the frame body (1), the drive module (5) is used for driving the module to work, a flow channel assembly (4) is arranged at the bottom of the frame body (1), the flow channel assembly (4) is used for completing circulation of materials, a striker module (6) is arranged on the left side of the inner wall of the frame body (1), and the striker module (6) is used for connecting the drive module (5) to enable a valve body to complete impact actions; The driving module (5) comprises a main cushion block (503), the bottom of the main cushion block (503) is arranged on the right side of the inner bottom wall of the frame body (1), locking screws (504) are connected to the front side and the rear side of the right end of the main cushion block (503) in a threaded mode, an amplifier (501) is connected to the left end of each locking screw (504) in a threaded mode, piezoelectric ceramics (502) is arranged in the middle of the main cushion block (503), a base plate seat (506) is fixedly connected to the left side of each piezoelectric ceramics (502), a fixed base plate (505) is fixedly connected to the right side of each base plate seat (506), and the left side of each base plate seat (506) is fixedly connected to the right side of the amplifier (501).
  2. 2. The piezoelectric injection valve with modularized drive according to claim 1, wherein the flow passage assembly (4) comprises a flow passage fixing seat (41), the right side of the top wall of the flow passage fixing seat (41) is fixedly connected to the bottom of the frame body (1), the top of the flow passage fixing seat (41) is communicated with a luer connector (3), a quick-dismantling flow passage (42) is arranged on the left side of the bottom wall of the flow passage assembly (4), and a quick-dismantling mechanism (43) is arranged on the right side of the bottom wall of the flow passage fixing seat (41).
  3. 3. The piezoelectric injection valve with modular driving as set forth in claim 2, wherein the quick-release runner (42) comprises a runner part (421), an outer wall of the runner part (421) is fixedly installed on the left side of the bottom wall of the runner fixing seat (41), a firing pin (422) is movably installed in the middle of the runner part (421), and a nozzle (423) is communicated with the bottom end of the firing pin (422).
  4. 4. The piezoelectric injection valve with modularized drive according to claim 1, wherein the plunger module (6) comprises a plunger rod (61), the outer wall of the plunger rod (61) is arranged on the left side of the inner wall of the amplifier (501), a nut seat (64) is fixedly connected to the middle of the plunger rod (61), an adjusting nut (63) is connected to the outer wall of the nut seat (64) in a threaded manner, and a fixing nut (62) is fixedly connected to the top end of the outer wall of the plunger rod (61).
  5. 5. A piezojet valve with modular actuation according to claim 1, characterized in that the front side of the frame (1) is fixedly equipped with a cover plate (2).
  6. 6. A piezojet valve with modular actuation according to claim 1, characterized in that the amplifier (501) has a hollow-out triangular design in its outer shape.
  7. 7. A piezojet valve with modular actuation according to claim 1, characterized in that the outer wall of the frame (1) is of smooth design.

Description

Piezoelectric injection valve with modularized driving Technical Field The utility model relates to the technical field of piezoelectric ceramic injection valves, in particular to a piezoelectric injection valve with modularized driving. Background The piezoelectric ceramic injection valve is a device for precisely controlling fluid injection by using a piezoelectric ceramic material as a core driving part, and when a voltage is applied to the piezoelectric ceramic material, the piezoelectric ceramic is deformed by using a piezoelectric effect. In a piezoelectric injection valve, a piezoelectric plate is assembled, and when a voltage is applied to the piezoelectric plate, the piezoelectric plate deforms, resulting in a change in the size of a small hole or channel therein, causing a change in the pressure of the fluid, thereby changing the flow rate or direction of the fluid. The piezoelectric ceramic injection valve is most widely used in various fluid processes, the frame body, the amplifying mechanism, the piezoelectric ceramic, the pre-tightening screw and the backing plate of the existing single-piezoelectric and double-piezoelectric injection valve are all of split structures, the piezoelectric ceramic injection valve is gradually installed in a shell during assembly, the assembly and maintenance procedures are complex, the difficulty is high, the failure rate is high, the assembly methods are different, the dimensional tolerance of the internal structure is large, the performance and the service life of the piezoelectric ceramic are reduced, the maintenance cost and the production cost of a valve body are increased, and the production efficiency and the production benefit are reduced. Disclosure of utility model In order to make up for the defects, the utility model provides a piezoelectric injection valve with modularized driving, which aims to solve the problems that in the prior art, the internal structure has larger dimensional tolerance, the performance and the service life of piezoelectric ceramics are reduced, the maintenance cost and the production cost of a valve body are increased, and the production efficiency and the production benefit are reduced. In order to achieve the purpose, the piezoelectric injection valve with the modularized drive comprises a frame body, wherein a driving module is arranged on the inner bottom wall of the frame body and used for driving the driving module to work, a flow channel assembly is arranged at the bottom of the frame body and used for completing material circulation, and a plunger module is arranged on the left side of the inner wall of the frame body and used for being connected with the driving module to enable the valve body to complete the impact action; The driving module comprises a main cushion block, the bottom of the main cushion block is arranged on the right side of the inner bottom wall of the frame body, locking screws are connected to the front side and the rear side of the right end of the main cushion block in a threaded mode, amplifiers are connected to the left ends of the locking screws in a threaded mode, piezoelectric ceramics is arranged in the middle of the main cushion block, a cushion plate seat is fixedly connected to the left side of the piezoelectric ceramics, a fixed cushion plate is fixedly connected to the right side of the cushion plate seat, and the left side of the cushion plate seat is fixedly connected to the right side of the amplifiers. As a further description of the above technical solution: The flow passage assembly comprises a flow passage fixing seat, the right side of the top wall of the flow passage fixing seat is fixedly connected to the bottom of the frame body, the top of the flow passage fixing seat is communicated with a luer connector, a quick-dismantling flow passage is arranged on the left side of the bottom wall of the flow passage assembly, and a quick-dismantling mechanism is arranged on the right side of the bottom wall of the flow passage fixing seat. As a further description of the above technical solution: The quick-dismantling runner comprises a runner part, the outer wall of the runner part is fixedly arranged on the left side of the bottom wall of the runner fixing seat, a firing pin is movably arranged in the middle of the runner part, and the bottom end of the firing pin is communicated with a nozzle. As a further description of the above technical solution: The bumper bar module comprises a bumper bar, the outer wall of the bumper bar is arranged on the left side of the inner wall of the amplifier, the middle part of the bumper bar is fixedly connected with a nut seat, the outer wall of the nut seat is in threaded connection with an adjusting nut, and the top end of the outer wall of the bumper bar is fixedly connected with a fixing nut. As a further description of the above technical solution: The front side of the frame body is fixedly provided with a cover plate. As a further descripti