Tool-free flow channel quick release mechanism of piezoelectric injection valve

Abstract

The utility model relates to the technical field of piezoelectric ceramic injection valves, and discloses a tool-free flow channel quick release mechanism of a piezoelectric injection valve, which comprises a frame body, a flow channel fixing component is arranged at the lower part of the frame body, and a quick release component is arranged on the left side of the outer part of the flow channel fixing component; the quick release assembly comprises a flow channel body, a lining is installed in the middle of the flow channel body, a firing pin spring is arranged in the lining, a firing pin body is arranged in the middle of the firing pin spring, and a nozzle is fixedly connected to the lower portion of the flow channel body. And the runner fixing seat is fixedly connected to the lower portion of the frame body, a spring bolt is arranged on the right side of the interior of the runner fixing seat, a locking spring is arranged outside the spring bolt in a sleeving mode, and an unlocking pressing plate is arranged on the right side of the lower portion of the runner fixing seat. According to the utility model, the runner structure is simplified, so that the disassembly time is shortened, and the maintenance cost and the consumable cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of piezoelectric ceramic jet valve technology, and in particular to a tool-free quick-release mechanism for the flow channel of a piezoelectric jet valve. Background Technology

[0002] Piezoelectric ceramic jet valves are widely used in various fluid processes. After long-term operation, liquid residue will remain in the nozzle and flow channel of the piezoelectric jet valve, which needs to be disassembled and cleaned.

[0003] Currently, the structure of piezoelectric injection valves is quite complex. During maintenance, tools are required to disassemble the flow channel, nozzle, and impact pin for cleaning, which is complicated and time-consuming. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a tool-free quick-release mechanism for the flow channel of a piezoelectric injection valve, aiming to improve the problem that in the prior art, tools are required to disassemble the flow channel, nozzle, and impact pin for cleaning during maintenance, which is complicated and time-consuming.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A tool-free quick-release mechanism for a piezoelectric injection valve includes a frame, a flow channel fixing component is provided at the lower part of the frame, and a quick-release component is provided on the outer left side of the flow channel fixing component.

[0007] The quick-release assembly includes a flow channel body, a bushing installed in the middle of the flow channel body, a firing pin spring inside the bushing, a firing pin body in the middle of the firing pin spring, and a nozzle fixedly connected to the lower part of the flow channel body.

[0008] Furthermore, the flow channel fixing assembly includes a flow channel fixing seat, which is fixedly connected to the lower part of the frame. A locking tongue is provided on the right side inside the flow channel fixing seat, and a locking spring is sleeved on the outside of the locking tongue. An unlocking pressure plate is provided on the lower right side of the flow channel fixing seat.

[0009] Furthermore, the firing pin body and the firing pin spring are sequentially placed into the central hole of the bushing.

[0010] Furthermore, the locking tongue passes through the flow channel fixing seat from top to bottom, and the bottom of the locking tongue contacts the unlocking pressure plate.

[0011] Furthermore, the firing pin body sealing ring is disposed at the contact point between the firing pin body and the flow channel body to prevent fluid leakage.

[0012] Furthermore, the frame, the flow channel fixing seat, and the flow channel body are all made of special stainless steel.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, when disassembling the flow channel body, press the unlocking plate at the bottom of the flow channel fixing seat to push the locking tongue out of the positioning groove of the flow channel body, so that it can be unlocked and directly pulled out. The internal striking pin body, striking pin spring and bushing can be separated as a whole by pulling out the bushing, which is convenient for cleaning or replacement. This operation simplifies the structure, reduces disassembly time, and reduces maintenance and consumable costs. Attached Figure Description

[0015] Figure 1 This is a perspective view of a tool-free quick-release mechanism for a piezoelectric injection valve proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the locking tongue structure of a tool-free quick-release mechanism for a piezoelectric jet valve proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the bushing structure of a tool-free quick-release mechanism for a piezoelectric jet valve proposed in this utility model.

[0018] Legend:

[0019] 1. Frame; 2. Flow channel fixing assembly; 21. Flow channel fixing seat; 22. Locking spring; 23. Locking tongue; 24. Unlocking pressure plate; 3. Quick release assembly; 31. Flow channel body; 32. Strike pin body; 33. Strike pin spring; 34. Bushing; 35. Nozzle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0021] Reference Figures 1-3This utility model provides an embodiment of a tool-free quick-release mechanism for a piezoelectric jet valve, comprising a frame 1, a flow channel fixing component 2 at the lower part of the frame 1 for easy fixing of the flow channel body 31, and a quick-release component 3 on the outer left side of the flow channel fixing component 2 for easy disassembly of the flow channel body 31. The frame 1, the flow channel fixing base 21 and the flow channel body 31 are all made of special stainless steel. Stainless steel has extremely high mechanical strength and can withstand the impact of high-pressure fluid inside the flow channel as well as external mechanical loads, ensuring the structural stability and durability of the equipment in long-term use.

[0022] The quick-release assembly 3 includes a flow channel body 31, a bushing 34 installed in the middle of the flow channel body 31, a firing pin spring 33 inside the bushing 34, a firing pin body 32 in the middle of the firing pin spring 33, a nozzle 35 fixedly connected to the lower part of the flow channel body 31, the firing pin body 32 and the firing pin spring 33 being sequentially placed into the central hole of the bushing 34, a sealing ring for the firing pin body 32 being provided at the contact point between the firing pin body 32 and the flow channel body 31 to prevent fluid leakage, and a flow channel fixing assembly 2 including a flow channel fixing seat 21, the flow channel fixing seat 21 being fixedly connected to the lower part of the frame 1, a locking tongue 23 being provided on the right side inside the flow channel fixing seat 21, a locking spring 22 being sleeved on the outside of the locking tongue 23, an unlocking pressure plate 24 being provided on the lower right side of the flow channel fixing seat 21, the locking tongue 23 passing through the flow channel fixing seat 21 from top to bottom, and the bottom of the locking tongue 23 contacting the unlocking pressure plate 24.

[0023] Specifically, when installing the flow channel body 31, firstly, insert the flow channel body 31 into the flow channel fixing seat 21. The flow channel fixing seat 21 has a flow channel limiting structure inside to ensure that the position of the flow channel is consistent each time it is inserted, avoiding misalignment. After the flow channel body 31 is inserted into place, the locking tongue 23 inside the flow channel fixing seat 21 is pressed down by the locking spring 22, and the top of the locking tongue 23 is engaged in the positioning groove on the flow channel body 31, thereby firmly locking the flow channel body 31 and preventing the flow channel from shifting or loosening during operation. The flow channel body 31 is fixedly connected to the nozzle 35 to ensure the stability of fluid jetting. The impact pin body 32, impact pin spring 33, and bushing 34 are fixed by the slot inside the flow channel to maintain the stability of the internal components. The contact surface between the flow channel body 31 and the flow channel fixing seat 21 is connected by a sealing ring to ensure no fluid leakage. When it is necessary to disassemble the flow channel body 31 for cleaning or maintenance, the operator... Operators only need to manually press the unlocking plate 24 at the bottom of the flow channel fixing seat 21. Under the pressing action, the unlocking plate 24 moves upward, pushing the contact point at the bottom of the locking tongue 23, causing the locking tongue 23 to overcome the elastic force of the locking spring 22 and move upward. After the locking tongue 23 moves upward, its top disengages from the positioning groove on the flow channel body 31, thereby releasing the lock on the flow channel body 31. At this time, the flow channel body 31 is no longer restricted by the locking tongue 23, and the operator can easily pull it out of the flow channel fixing seat 21 to complete the disassembly of the flow channel. For the components inside the flow channel body 31 (such as the firing pin body 32, the firing pin spring 33, and the bushing 34), simply pull the bushing 34 out of the slot of the flow channel body 31 as a whole, and the firing pin body 32 and the firing pin spring 33 can be taken out together. This operation makes the separation and cleaning of internal components very convenient, without complicated tools or steps, significantly reducing the difficulty and time cost of maintenance.

[0024] Working principle: When the flow channel body 31 needs to be disassembled for cleaning or maintenance, manually press the unlocking plate 24 at the bottom of the flow channel fixing seat 21. The unlocking plate 24 pushes the contact point at the bottom of the locking tongue 23 upward, causing the locking tongue 23 to overcome the elastic force of the locking spring 22 and move upward, disengaging from the positioning groove on the flow channel body 31. After the locking tongue 23 disengages from the positioning groove, the flow channel body 31 is unlocked and can be directly pulled out from the flow channel fixing seat 21. For the components inside the flow channel body 31 (such as the firing pin body 32, firing pin spring 33, and bushing 34), simply pull the bushing 34 out of the slot of the flow channel body 31 as a whole to separate the firing pin body 32 and the firing pin spring 33, which is convenient for further cleaning or replacement. Through the above operation, the flow channel structure is simplified, disassembly time is reduced, and maintenance and consumable costs are reduced.

[0025] 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 tool-free quick-release mechanism for a piezoelectric injection valve, comprising a frame (1), characterized in that: The lower part of the frame (1) is provided with a flow channel fixing component (2), and the left side of the flow channel fixing component (2) is provided with a quick-release component (3). The quick-release assembly (3) includes a flow channel body (31), a bushing (34) is installed in the middle of the flow channel body (31), a firing pin spring (33) is provided inside the bushing (34), a firing pin body (32) is provided in the middle of the firing pin spring (33), and a nozzle (35) is fixedly connected to the lower part of the flow channel body (31).

2. The tool-free quick-release mechanism for the flow channel of a piezoelectric injection valve according to claim 1, characterized in that: The flow channel fixing assembly (2) includes a flow channel fixing seat (21), which is fixedly connected to the lower part of the frame (1). A locking tongue (23) is provided on the right side inside the flow channel fixing seat (21), and a locking spring (22) is sleeved on the outside of the locking tongue (23). An unlocking pressure plate (24) is provided on the lower right side of the flow channel fixing seat (21).

3. The tool-free quick-release mechanism for a piezoelectric injection valve according to claim 1, characterized in that: The firing pin body (32) and the firing pin spring (33) are sequentially placed into the center hole of the bushing (34).

4. The tool-free quick-release mechanism for the flow channel of a piezoelectric injection valve according to claim 2, characterized in that: The locking tongue (23) passes through the flow channel fixing seat (21) from top to bottom, and the bottom of the locking tongue (23) contacts the unlocking pressure plate (24).

5. The tool-free quick-release mechanism for the flow channel of a piezoelectric injection valve according to claim 1, characterized in that: The sealing ring of the firing pin body (32) is provided at the contact part between the firing pin body (32) and the flow channel body (31) to prevent fluid leakage.

6. The tool-free quick-release mechanism for the flow channel of a piezoelectric injection valve according to claim 1, characterized in that: The frame (1), the flow channel fixing seat (21) and the flow channel body (31) are all made of special stainless steel.

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