Piezoelectric injection valve with modular drive

Abstract

The utility model relates to the technical field of piezoelectric ceramic injection valves, and discloses a piezoelectric injection valve with modular driving, which comprises a frame body, a driving module is arranged on the inner bottom wall of the frame body, the driving module is used for driving a component to work, a runner component is arranged at the bottom of the frame body, and the runner component is used for driving the component to work. The runner assembly is used for completing circulation of materials, and a collision rod module is arranged on the left side of the inner wall of the driving module and used for being connected with the driving module to enable the valve body to complete the collision 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. According to the utility model, the positioning structure of the piezoelectric ceramic and the pre-tightening screw is arranged on the base plate, so that the amplifier and the piezoelectric ceramic are ensured to be stressed vertically during movement, and therefore, the driving module is mounted in the frame body as a whole mechanism, and the purposes of improving the production efficiency and reducing the repair cost are achieved.

Description

Technical Field

[0001] This utility model relates to the field of piezoelectric ceramic injection valve technology, and in particular to a piezoelectric injection valve with modular drive. Background Technology

[0002] A piezoelectric ceramic jet valve is a device for precisely controlling fluid jetting, using piezoelectric ceramic material as its core driving component. Utilizing the piezoelectric effect, when a voltage is applied to the piezoelectric ceramic material, it deforms. In the piezoelectric jet valve, a piezoelectric element is installed. When voltage is applied to the piezoelectric element, it deforms, causing a change in the size of the orifices or channels on it, resulting in a change in fluid pressure, and thus altering the fluid flow rate or direction.

[0003] Piezoelectric ceramic jet valves are the most widely used in various fluid processes. The existing single and double piezoelectric jet valves have separate structures for the frame, amplification mechanism, piezoelectric ceramic, preload screw, and gasket. During assembly, they need to be installed into the housing step by step. The assembly and maintenance process is complex, difficult, and has a high failure rate. Different assembly methods result in large dimensional tolerances in the internal structure, which reduces the performance and service life of the piezoelectric ceramic, increases valve body maintenance and production costs, and reduces production efficiency and benefits. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a piezoelectric injection valve with modular drive, which aims to improve the problems in the prior art where the internal structure has large dimensional tolerances, which reduces the performance and service life of piezoelectric ceramics, increases valve body maintenance and production costs, and reduces production efficiency and benefits.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a piezoelectric injection valve with modular drive, comprising a frame, a drive module provided on the inner bottom wall of the frame, the drive module being used to drive the components to work, a flow channel assembly provided at the bottom of the frame, the flow channel assembly being used to complete the flow of materials, and a strike rod module provided on the left side of the inner wall of the frame, the strike rod module being used to connect to the drive module to enable the valve body to complete the impact action;

[0006] The drive module includes a main pad block. The bottom of the main pad block is located on the right side of the inner bottom wall of the frame. Locking screws are threaded to both the front and rear sides of the right end of the main pad block. An amplifier is threaded to the left end of the locking screws. A piezoelectric ceramic is located in the middle of the main pad block. A pad seat is fixedly connected to the left side of the piezoelectric ceramic. A fixing pad is fixedly connected to the right side of the pad seat. The left side of the pad seat is fixedly connected to the right side of the amplifier.

[0007] As a further description of the above technical solution:

[0008] The flow channel assembly includes a flow channel fixing seat, the right side of the top wall of the flow channel fixing seat is fixedly connected to the bottom of the frame, the top of the flow channel fixing seat is connected to a Luer connector, the left side of the bottom wall of the flow channel assembly is provided with a quick-release flow channel, and the right side of the bottom wall of the flow channel fixing seat is provided with a quick-release mechanism.

[0009] As a further description of the above technical solution:

[0010] The quick-release flow channel includes a flow channel component. The outer wall of the flow channel component is fixedly installed on the left side of the bottom wall of the flow channel fixing seat. A striker is movably installed in the middle of the flow channel component, and the bottom end of the striker is connected to a nozzle.

[0011] As a further description of the above technical solution:

[0012] The impact rod module includes an impact rod strip. The outer wall of the impact rod strip is disposed on the left side of the inner wall of the amplifier. A nut seat is fixedly connected to the middle of the impact rod strip. An adjusting nut is threadedly connected to the outer wall of the nut seat. A fixing nut is fixedly connected to the top of the outer wall of the impact rod strip.

[0013] As a further description of the above technical solution:

[0014] A cover plate is fixedly installed on the front side of the frame.

[0015] As a further description of the above technical solution:

[0016] The amplifier features a hollowed-out triangular design.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the frame is designed to be smooth.

[0019] This utility model has the following beneficial effects:

[0020] In this utility model, the pad is used as the reference for overall assembly, and the frame connection holes are set on the pad to fix the whole. At the same time, the pad is provided with a positioning structure for piezoelectric ceramics and pre-tightening screws, and the amplifier is provided with a flexible hinge to ensure that the amplifier and piezoelectric ceramics are subjected to perpendicular forces during movement. In this way, the drive module is installed as an integral mechanism in the frame, thereby achieving the purpose of improving production efficiency, increasing product yield, and reducing rework costs. Attached Figure Description

[0021] Figure 1 This is a front view of a piezoelectric injection valve with modular drive proposed in this utility model;

[0022] Figure 2A perspective view of a piezoelectric injection valve with modular drive proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the amplifier for a piezoelectric injection valve with modular drive proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of a pad for a piezoelectric injection valve with modular drive proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the striking pin of a piezoelectric injection valve with modular drive proposed in this utility model;

[0026] Figure 6 This is a schematic diagram of a flow channel fixing seat for a piezoelectric injection valve with modular drive proposed in this utility model;

[0027] Figure 7 This is a schematic diagram of the nozzle structure of a piezoelectric injection valve with modular drive proposed in this utility model.

[0028] Legend:

[0029] 1. Frame; 2. Cover plate; 3. Luer connector; 4. Flow channel assembly; 41. Flow channel fixing seat; 42. Quick-release flow channel; 421. Flow channel parts; 422. Impact pin; 423. Nozzle; 43. Quick-release mechanism; 5. Drive module; 501. Amplifier; 502. Piezoelectric ceramic; 503. Main pad; 504. Locking screw; 505. Fixing pad; 506. Pad seat; 6. Impact rod module; 61. Impact rod strip; 62. Fixing nut; 63. Adjusting nut; 64. Nut seat. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 3The present invention provides an embodiment of a piezoelectric injection valve with modular drive, comprising a frame 1, which is used to install and fix the structure. A drive module 5 is provided on the inner bottom wall of the frame 1, which is used to drive the components to work. A flow channel assembly 4 is provided at the bottom of the frame 1, which is used to complete the flow of materials. A strike rod module 6 is provided on the left side of the inner wall of the frame 1, which is used to connect to the drive module 5 so that the valve body completes the impact action.

[0032] The drive module 5 includes a main pad 503. The bottom of the main pad 503 is located on the right side of the inner bottom wall of the frame 1. The main pad 503 serves as the reference for assembling the drive module 5, and connection holes for the frame 1 are provided on the main pad 503 for fixing the whole assembly. Locking screws 504 are threaded to both the front and rear sides of the right end of the main pad 503. An amplifier 501 is threaded to the left end of the locking screw 504. A positioning structure for the piezoelectric ceramic 502 and the locking screws 504 is provided on the fixing plate 505. A pad seat 506 is fixedly connected to the left side of 2, and a fixing pad 505 is fixedly connected to the right side of the pad seat 506. The left side of the pad seat 506 is fixedly connected to the right side of the amplifier 501. A piezoelectric ceramic 502 is provided in the middle of the main pad block 503. The fixing pad 505 and the pad seat 506 form a flexible hinge structure, which is installed on the amplifier 501 to ensure that the amplifier 501 and the piezoelectric ceramic 502 are perpendicular to each other when moving. The drive module 5 can be independently assembled and debugged before being installed into the frame 1.

[0033] Specifically, the drive module 5 consists of several key components, including a main pad 503. The main pad 503 is placed on the right side of the inner bottom wall of the frame 1, serving as a reference point throughout the assembly process. To ensure the stability and accuracy of the main pad 503, connection holes from the frame 1 are provided on it. These holes are used to fix the main pad 503 in the appropriate position. In addition, the front and rear sides of the right end of the main pad 503 are designed with threads for threaded connection with the locking screw 504. The left end of the locking screw 504 also has threads for connection with the amplifier 501, thereby ensuring the stability of the piezoelectric ceramic 502. On the main pad 503, a positioning structure for the piezoelectric ceramic 502 and the locking screw 504 is provided to ensure that they can be accurately positioned and fixed. The left side of the piezoelectric ceramic 502 is bonded to the pad seat. The pad 506 is connected to the main pad 503, and the right side of the pad 506 is flexibly connected to the fixed pad 505 in an arc. The amplifier 501 is fixedly connected to the right side of the pad 506. The fixed pad 505 and the pad 506 form a flexible hinge structure and are installed on the amplifier. This design ensures that during the movement, the locking screw 504 passes through the main pad 503 and the piezoelectric ceramic 502 is flexibly fixed between the fixed pad 505 and the main pad 503 by tightening the amplifier 501. This ensures that the piezoelectric ceramic 502 is only subjected to vertical pressure at both ends, without lateral or torsional forces, thereby improving the overall stability and response speed. The entire drive module 5 can be assembled and debugged independently to ensure that its performance reaches the best. After debugging, the entire drive module 5 can be installed into the frame 1, providing a solid foundation for subsequent use and operation.

[0034] Reference Figure 1 , Figure 6 and Figure 7 The flow channel assembly 4 includes a flow channel fixing seat 41. The right side of the top wall of the flow channel fixing seat 41 is fixedly connected to the bottom of the frame 1. The flow channel assembly 4 consists of the flow channel fixing seat 41 and the quick-release flow channel 42. The top of the flow channel fixing seat 41 is connected to a Luer connector 3. The upper end of the Luer connector 3 is connected to a feeding mechanism, and the lower end is fixed to the flow channel part 421 and connected to the quick-release flow channel 42. The left side of the bottom wall of the flow channel assembly 4 is provided with the quick-release flow channel 42, and the right side of the bottom wall of the flow channel fixing seat 41 is provided with a quick-release mechanism 43. The quick-release flow channel 42 includes a flow channel part 421. The outer wall of the flow channel part 421 is fixedly installed on the left side of the bottom wall of the flow channel fixing seat 41. The flow channel fixing seat 41 is provided with a discharge port, which consists of a striker 422 and a nozzle 423. The striker 422 is movably installed in the middle of the flow channel part 421, and the bottom end of the striker 422 is connected to the nozzle 423.

[0035] Specifically, the flow channel assembly 4 includes a flow channel fixing seat 41 and a quick-release flow channel 42. The right side of the top wall of the flow channel fixing seat 41 is firmly fixed to the bottom of the frame 1, ensuring the stability of the entire assembly. The flow channel assembly 4 allows for quick disassembly and assembly. The top of the flow channel fixing seat 41 is connected to the Luer connector 3, and its upper end is connected to the feeding mechanism, which is responsible for conveying raw materials into the flow channel assembly 4. Its lower end is fixed to the flow channel part 421 and maintains communication with the quick-release flow channel 42, ensuring that the raw materials can pass smoothly through the entire flow channel. The left side of the bottom wall of the flow channel assembly 4 is provided with the quick-release flow channel 42, allowing operators to quickly replace or maintain the flow channel part 421. A quick-release mechanism 43 is provided on the right side of the bottom wall of the flow channel 4, which makes the disassembly and installation of the flow channel assembly 4 convenient, improving production efficiency and maintenance convenience. The core of the quick-release flow channel 42 is the flow channel component 421, whose outer wall is fixedly installed on the left side of the bottom wall of the flow channel fixing seat 41. A discharge port is provided below the flow channel component 421. This discharge port consists of a striker 422 and a nozzle 423 to ensure that the raw material can be delivered to the designated position. The striker 422 is movably installed in the middle of the flow channel component 421, which allows the flow of the raw material to be controlled when needed. The bottom end of the striker 422 is connected to the nozzle 423. The nozzle 423 is the final channel for raw material output, which affects the accuracy and efficiency of raw material output.

[0036] Reference Figure 2 and Figure 5 The impact rod module 6 includes an impact rod strip 61. The outer wall of the impact rod strip 61 is disposed on the left side of the inner wall of the amplifier 501. A nut seat 64 is fixedly connected to the middle of the impact rod strip 61. An adjusting nut 63 is threadedly connected to the outer wall of the nut seat 64. A fixing nut 62 is fixedly connected to the top of the outer wall of the impact rod strip 61.

[0037] Specifically, the striker bar 61 can be installed on the left side of the inner wall of the amplifier 501, ensuring its positional stability. To further enhance its function, a nut seat 64 is fixedly connected to the middle of the striker bar 61. This nut seat 64 not only provides additional support for the striker bar 61, but also has threads designed on its outer wall for threaded connection with the adjusting nut 63. The setting of the adjusting nut 63 makes the adjustment of the entire striker module 6 flexible and convenient. The adjusting nut 63 adjusts the position of the striker module 6. In addition, a fixing nut 62 is fixedly connected to the top of the outer wall of the striker bar 61. The function of this fixing nut 62 is to ensure the stability and safety of the striker bar 61 during use and prevent it from moving or falling off unnecessarily when subjected to external forces. The striker module 6 is connected to the drive module 5 to strike the striker pin 422, so that the valve body completes the impact action.

[0038] Reference Figure 1 and Figure 3A cover plate 2 is fixedly installed on the front side of the frame 1; the amplifier 501 adopts a hollow triangular design; the outer wall of the frame 1 adopts a smooth design.

[0039] Specifically, the cover plate 2 protects the internal modules of the valve body, the amplifier 501 adopts a hollow triangular design to improve the performance of the amplifier 501, and the outer wall of the frame 1 adopts a smooth design to improve the pressure resistance of the outer wall of the valve body.

[0040] Working principle: The main pad 503 serves as the reference for the overall assembly, and the frame 1 connection holes are set on the main pad 503 to fix the whole. The main pad 503 is equipped with a positioning structure for the piezoelectric ceramic 502 and the locking screw 504. The amplifier 501 is equipped with a flexible hinge to ensure that the amplifier 501 and the piezoelectric ceramic 502 are perpendicular to each other during movement. The drive module 5 can be assembled and debugged independently, and then the whole assembly is installed into the frame 1. After the drive module 5 and the flow channel assembly 4 are installed into the frame 1, the nut seat 64 and the adjusting nut 63 are installed on the amplifier 501. The impact bar 61 passes under the flow channel fixing seat 41 and enters the nut seat 64. The adjusting nut 62 is fixed and the height of the impact bar is adjusted according to the design height. After the adjustment is completed, the fixing nut 62 is locked. Then the cover plate 2 is installed, so that the drive module 5 is installed as a whole mechanism in the frame 1, thereby improving production efficiency, increasing product yield, and reducing rework costs.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A piezoelectric injection valve with modular actuation, comprising a frame (1), characterized in that: The inner bottom wall of the frame (1) is provided with a drive module (5), which is used to drive the components to work. The bottom of the frame (1) is provided with a flow channel component (4), which is used to complete the flow of materials. The left side of the inner wall of the frame (1) is provided with a strike bar module (6), which is used to connect to the drive module (5) so that the valve body can complete the impact action. The drive module (5) includes a main pad (503). The bottom of the main pad (503) is located on the right side of the inner bottom wall of the frame (1). Locking screws (504) are threaded to the front and rear sides of the right end of the main pad (503). An amplifier (501) is threaded to the left end of the locking screw (504). A piezoelectric ceramic (502) is provided in the middle of the main pad (503). A pad seat (506) is fixedly connected to the left side of the piezoelectric ceramic (502). A fixing pad (505) is fixedly connected to the right side of the pad seat (506). The left side of the pad seat (506) is fixedly connected to the right side of the amplifier (501).

2. The piezoelectric injection valve with modular drive according to claim 1, characterized in that: The flow channel assembly (4) includes a flow channel fixing seat (41), the right side of the top wall of the flow channel fixing seat (41) is fixedly connected to the bottom of the frame (1), the top of the flow channel fixing seat (41) is connected to a Luer connector (3), a quick-release flow channel (42) is provided on the left side of the bottom wall of the flow channel assembly (4), and a quick-release mechanism (43) is provided on the right side of the bottom wall of the flow channel fixing seat (41).

3. A piezoelectric injection valve with modular drive according to claim 2, characterized in that: The quick-release flow channel (42) includes a flow channel component (421). The outer wall of the flow channel component (421) is fixedly installed on the left side of the bottom wall of the flow channel fixing seat (41). A striker (422) is movably installed in the middle of the flow channel component (421). The bottom end of the striker (422) is connected to a nozzle (423).

4. A piezoelectric injection valve with modular drive according to claim 1, characterized in that: The impact rod module (6) includes an impact rod strip (61). The outer wall of the impact rod strip (61) is disposed on the left side of the inner wall of the amplifier (501). A nut seat (64) is fixedly connected to the middle of the impact rod strip (61). An adjusting nut (63) is threadedly connected to the outer wall of the nut seat (64). A fixing nut (62) is fixedly connected to the top of the outer wall of the impact rod strip (61).

5. A piezoelectric injection valve with modular drive according to claim 1, characterized in that: A cover plate (2) is fixedly installed on the front side of the frame (1).

6. A piezoelectric injection valve with modular drive according to claim 1, characterized in that: The amplifier (501) has a hollowed-out triangular design.

7. A piezoelectric injection valve with modular drive according to claim 1, characterized in that: The outer wall of the frame (1) is designed to be smooth.

Images