Water jet cutter assembly

Abstract

The utility model relates to the technical field of metal water jet cutters, and discloses a water jet cutter assembly which comprises a water jet cutter body and a liquid storage pipe which are connected with each other, and a plurality of water jet cutter jet orifices are formed in the water jet cutter body. The filtering device is connected with the liquid storage pipe, and the filtering device is located between the water inlet of the liquid storage pipe and the water jet scalpel body on the flowing path of the liquid. The filtering device is installed on a key circulation path between the water inlet of the liquid storage pipe and the water jet cutter body, liquid is intercepted in the last link before entering the water jet cutter body, the passing probability of residual particles is remarkably reduced, and the residual particles are prevented from entering the water jet cutter jet orifice; and the whole system shutdown time caused by impurity accumulation can be shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of metal waterjet technology, and specifically to waterjet components. Background Technology

[0002] In related technologies, in the prior art, potassium permanganate / sodium permanganate solution is often used as a desmearing agent for metal waterjet components because it can effectively remove resin glue from the hole wall and form an ideal micro-roughness. However, such solutions are prone to decomposition under high temperature and strong alkaline conditions to generate precipitates (such as micron-sized particles such as MnO), and may be mixed with other debris (such as particles generated by metal processing) during the liquid circulation process. If these particles are not thoroughly filtered, they will enter the waterjet system with the liquid, causing the following problems: (1) Pipe blockage: Unblocked particles may accumulate in the liquid storage pipe or the internal pipe of the waterjet, affecting the liquid flow efficiency; (2) Workpiece contamination: Particles sprayed out from the waterjet nozzle with the liquid may adhere to the surface of the workpiece, resulting in abnormal surface quality after processing or cleaning; (3) High maintenance cost: Frequent blockage and contamination problems require frequent shutdowns for cleaning, increasing maintenance costs. Utility Model Content

[0003] In view of this, the present invention provides a waterjet assembly to solve problems such as pipe blockage and workpiece contamination in related technologies.

[0004] In a first aspect, this utility model provides a water jet assembly, comprising:

[0005] The water jet body and the liquid storage pipe are connected to each other, and the water jet body is provided with a number of water jet nozzles;

[0006] A filtration device is connected to the liquid storage pipe, and is located between the inlet of the liquid storage pipe and the water jet body in the liquid flow path.

[0007] Beneficial effects: (1) Dual filtration guarantee: Before the liquid enters the water jet body, it has been intercepted by primary filtration (such as an external coarse filter) and secondary precision filtration of this utility model, which significantly reduces the probability of residual particles passing through; at the same time, for fine particles such as micron-sized precipitates produced by the decomposition of potassium permanganate, a more thorough filtration effect is achieved through the precise pore size design of the filter device (such as the ability to select different mesh sizes of filter screens according to needs). (2) Precision of filtration position: The filter device is installed in the key flow path between the liquid storage pipe inlet and the water jet body, intercepting the liquid at the last stage before it enters the water jet body, preventing residual particles from entering the water jet nozzle. (3) Improved maintenance efficiency: When the liquid flow rate decreases or the nozzle is abnormal, the filter device can be directly checked to quickly locate the root cause of the problem; reduce the overall system downtime caused by impurity accumulation and improve production efficiency.

[0008] In one optional embodiment, the filter device is installed at the inlet of the liquid storage pipe, and the filter device extends along the length of the liquid storage pipe and extends into the interior of the liquid storage pipe.

[0009] The filter device has a filter space inside, and the part of the filter device that extends into the liquid storage tube is provided with filter holes. The filter space is connected to the internal flow channel of the liquid storage tube through the filter holes.

[0010] Beneficial effects: In this embodiment, the liquid undergoes preliminary filtration (such as coarse pores or a pre-filtration layer) at the inlet before entering the filtration space; furthermore, fine particles are intercepted as the liquid passes through the filter pores, ensuring the cleanliness of the liquid that finally enters the storage tube. Thus, the liquid undergoes double filtration before entering the main channel of the storage tube, reducing the risk of particle accumulation on the inner wall of the storage tube. Simultaneously, this invention can utilize the low flow rate within the filtration space to promote particle sedimentation, thereby further improving filtration efficiency.

[0011] In one alternative embodiment, the filtration device is detachably connected to the inlet of the liquid storage tube.

[0012] Beneficial effects: The filter can be quickly replaced or cleaned without disassembling the entire liquid storage pipe or water jet assembly, saving downtime; at the same time, the filter can be quickly replaced with different pore sizes according to the working conditions (such as different particle sizes or liquid composition), improving system flexibility.

[0013] In one optional embodiment, the outer peripheral wall of the filter device is provided with a plurality of first filter holes, and at least a portion of the outer peripheral wall of the filter device is spaced apart from the inner peripheral wall of the liquid storage tube to define a flow gap.

[0014] In the liquid flow path, the water inlet, the filtration space, the first filter hole, the flow gap, and the water jet nozzle are connected in sequence.

[0015] Beneficial effects: By combining primary filtration (first filter orifice) with secondary distribution and auxiliary filtration (flow gap), the overall filtration efficiency is significantly improved, reducing the risk of particulate residue. Furthermore, the uniform liquid distribution avoids uneven spraying or particulate residue problems caused by excessively high local flow velocities, enhancing the system's stability and reliability. In addition, no complex auxiliary equipment is required; efficient filtration and fluid management can be achieved simply by rationally designing the outer peripheral wall and flow gap of the filter device, simplifying the system structure.

[0016] In one optional embodiment, the filtration device is coaxially arranged with the liquid storage tube;

[0017] Along the length of the liquid storage tube, the gap distance between the outer peripheral wall of the filter device and the inner peripheral wall of the liquid storage tube is equal; and / or, along the circumferential direction of the liquid storage tube, the gap distance between the outer peripheral wall of the filter device and the inner peripheral wall of the liquid storage tube is equal.

[0018] Beneficial effects: The coaxial arrangement of the filter device and the liquid storage pipe and the design of their uniform gap not only improve the effect of liquid filtration and distribution, but also enhance the reliability and durability of the system.

[0019] In one optional embodiment, the gap between the outer peripheral wall of the filter device and the inner peripheral wall of the liquid storage tube is greater than or equal to 3 mm and less than or equal to 5 mm.

[0020] Beneficial effects: A gap distance of 3mm to 5mm helps control the liquid flow rate, avoiding excessive pressure loss due to too small a gap or turbulence caused by too large a gap. This ensures a smoother and more uniform liquid flow within the flow gap, reducing energy loss. Simultaneously, an appropriate gap width allows small particles not completely intercepted by the first filter pores to further settle or adhere to the wall surface within the flow gap, improving overall filtration efficiency.

[0021] In one optional embodiment, the end wall of the filtration device away from the water inlet is provided with a plurality of second filter holes; in the liquid flow path, the water inlet, the filtration space, the second filter holes, the internal flow channel of the liquid storage tube and the water jet nozzle are connected in sequence.

[0022] Beneficial effects: The fine pore design ensures effective interception of target particles, meeting the filtration needs of various scenarios. Simultaneously, the uniformly distributed pore structure and end design enhance the system's compressive strength and extend the equipment's lifespan. Furthermore, the second filter pore can be used independently or in conjunction with the first filter pore, thus adapting to application scenarios of varying complexity.

[0023] In one optional embodiment, the filtration device includes a plug, a support frame, and a filter screen. The plug is hollow and installed inside the inlet of the liquid storage pipe. One end of the support frame is fixed to the plug and the other end extends into the liquid storage pipe. The filter screen is wrapped around the outer periphery of the support frame.

[0024] The filter screen is spaced apart from the inner peripheral wall of the liquid storage tube, and the interior of the filter screen defines the filtration space. The filter screen has a plurality of filter holes distributed on it.

[0025] Beneficial effects: The integrated design of the plug, support frame, and filter screen reduces the number of complex components, lowering manufacturing costs and maintenance difficulty. Simultaneously, the optimized pore size and distribution of the filter screen ensure effective interception of particles of different sizes, improving overall filtration accuracy. Furthermore, the optimized gap design between the filter screen and the inner wall of the liquid storage tube improves the liquid flow path, reducing the risk of localized blockages and extending the equipment's lifespan.

[0026] In one optional embodiment, the support frame includes at least two support ribs and at least one support ring, one end of each support rib is fixed to the plug and the other end extends into the liquid storage tube, and all the support ribs extend along the length of the liquid storage tube and are parallel to each other.

[0027] Each of the support rings extends circumferentially along the liquid storage tube, and each of the support rings is sleeved and fixed to the outside of all the support ribs.

[0028] Beneficial effects: The combined design of support ribs and support rings significantly improves the overall rigidity and compressive strength of the support frame, ensuring that the filter screen can still function normally under high pressure. At the same time, the design of the support frame facilitates the disassembly and replacement of the filter screen, reducing maintenance costs and operational difficulty.

[0029] In one alternative embodiment, the filter devices are all made of metal.

[0030] Beneficial effects: By using metal materials to make the filter device, the mechanical strength and durability of the filter device can be improved, its structural stability can be enhanced, its service life can be extended, and its corrosion resistance can be improved, making it more widely applicable. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is one of the structural schematic diagrams of a water jet assembly according to an embodiment of the present utility model;

[0033] Figure 2 This is an exploded view of a water jet assembly according to an embodiment of the present utility model;

[0034] Figure 3 This is a second structural schematic diagram of a water jet assembly according to an embodiment of the present utility model;

[0035] Figure 4 For along Figure 3 Sectional view of line AA in the middle;

[0036] Figure 5 This is a schematic diagram of the structure of the filtration device according to an embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Water jet body; 11. Water jet nozzle; 2. Liquid storage pipe; 21. Water inlet; 22. Flow gap; 3. Filter device; 31. Plug; 32. Support frame; 321. Support rib; 322. Support ring; 33. Filter screen; 331. First filter hole. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0042] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] The following description, with reference to the accompanying drawings, introduces a water jet assembly provided by this utility model.

[0044] like Figures 1 to 5 As shown, the water jet assembly according to the first aspect of the present invention includes a water jet body 1, a liquid storage pipe 2, and a filter device 3.

[0045] The water jet body 1 and the liquid storage pipe 2 are connected to each other. The water jet body 1 is provided with a plurality of water jet nozzles 11. The filter device 3 is connected to the liquid storage pipe 2 and is located between the water inlet 21 of the liquid storage pipe 2 and the water jet body 1 in the liquid flow path.

[0046] The specific structure of the water jet assembly according to an embodiment of this utility model is described below:

[0047] The waterjet body 1 is the core actuating component of the waterjet assembly. It is equipped with several waterjet nozzles 11 for precisely spraying high-pressure liquid (such as adhesive remover) onto the surface of the target workpiece to complete cleaning or processing. The liquid storage pipe 2 serves as the storage and flow channel for the liquid, transporting the liquid (such as potassium permanganate solution) from an external source to the waterjet body 1. The filter device 3 is located between the inlet 21 of the liquid storage pipe 2 and the waterjet body 1. Its structure may include a metal mesh (such as SUS316L stainless steel) and a supporting structure. The filter device 3 intercepts particulate impurities in the liquid (such as precipitates or other debris produced by the decomposition of potassium permanganate) through the filter screen 33.

[0048] It should be noted that the filter device 3 is directly connected to the end of the inlet 21 of the liquid storage pipe 2, located in the path of the liquid flowing from the liquid storage pipe 2 to the water jet body 1. The function of the filter device 3 is as follows: to intercept particles in the liquid with a diameter larger than the pore size of the filter screen 33 (such as micron-sized precipitates produced by the decomposition of potassium permanganate, metal fragments, etc.), preventing them from entering the water jet nozzle 11, and preventing the nozzle from clogging or contaminating the workpiece surface.

[0049] Based on the above structure, the specific working principle and working process of the water jet assembly of this utility model are as follows: the liquid enters from the inlet 21 of the liquid storage pipe 2, first flows through the filter device 3, and after the impurities are intercepted by the filter screen 33, it is transported to the water jet body 1 through the liquid storage pipe 2, and finally sprayed out at high speed from the spray nozzle.

[0050] During the above-mentioned operation, when the liquid enters the inlet 21 of the liquid storage pipe 2, the first filtration (such as an external coarse filtration device) may have removed large particulate impurities; the filter device 3, as the second-stage fine filtration, intercepts the fine particles that the first filtration failed to intercept, ensuring the cleanliness of the liquid; the filtered liquid is stably transported to the water jet body 1 through the liquid storage pipe 2, avoiding uneven spraying, blockage, or workpiece surface contamination caused by impurities.

[0051] In related technologies, in the prior art, potassium permanganate / sodium permanganate solution is often used as a desmearing agent for metal waterjet components because it can effectively remove resin glue from the hole wall and form an ideal micro-roughness. However, such solutions are prone to decomposition under high temperature and strong alkaline conditions to generate precipitates (such as micron-sized particles such as MnO), and may be mixed with other debris (such as particles generated by metal processing) during the liquid circulation process. If these particles are not thoroughly filtered, they will enter the waterjet system with the liquid, causing the following problems: (1) Pipe blockage: Unblocked particles may accumulate in the liquid storage pipe or the internal pipe of the waterjet, affecting the liquid flow efficiency; (2) Workpiece contamination: Particles sprayed out from the waterjet nozzle with the liquid may adhere to the surface of the workpiece, resulting in abnormal surface quality after processing or cleaning; (3) High maintenance cost: Frequent blockage and contamination problems require frequent shutdowns for cleaning, increasing maintenance costs.

[0052] Therefore, in order to solve the technical defects existing in the above-mentioned related technologies, this utility model proposes a water jet assembly. By installing the filter device 3 in the front between the inlet 21 of the liquid storage pipe 2 and the water jet body 1, the problems of pipeline blockage, abnormal quality and poor maintenance convenience caused by potassium permanganate decomposition precipitates or debris entering the water jet system are solved.

[0053] Furthermore, the waterjet assembly of this utility model has at least the following advantages compared to related technologies:

[0054] (1) Dual filtration guarantee: Before the liquid enters the water jet body 1, it has been intercepted by primary filtration (such as an external coarse filtration device) and secondary precision filtration of this utility model, which significantly reduces the probability of residual particles passing through; at the same time, for fine particles such as micron-sized precipitates produced by the decomposition of potassium permanganate, a more thorough filtration effect is achieved by designing the precision pore size of the filter device 3 (such as selecting different mesh sizes of filter screen 33 according to needs).

[0055] (2) Precision of filtration position: The filter device 3 is installed in the critical flow path between the inlet 21 of the liquid storage pipe 2 and the water jet body 1, and intercepts the liquid in the last stage before it enters the water jet body 1 to prevent residual particles from entering the water jet nozzle 11.

[0056] (3) Improved maintenance efficiency: When the liquid flow rate decreases or the nozzle is abnormal, the filter device 3 can be checked directly to quickly locate the root cause of the problem; reduce the overall system downtime caused by impurity accumulation and improve production efficiency.

[0057] like Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the filter device 3 is installed at the inlet 21 of the liquid storage pipe 2, and the filter device 3 extends along the length of the liquid storage pipe 2 and extends into the interior of the liquid storage pipe 2. A filter space is formed inside the filter device 3, and the portion of the filter device 3 extending into the liquid storage pipe 2 is provided with filter holes, and the filter space is connected to the internal flow channel of the liquid storage pipe 2 through the filter holes.

[0058] In this embodiment, the filter device 3 is installed at the inlet 21 of the liquid storage pipe 2 and extends inward along the length of the liquid storage pipe 2 to form an insertion section. Filter holes are only provided in the insertion section of the filter device 3 (i.e., the part extending into the liquid storage pipe 2), and their aperture is designed according to the particle size to be intercepted (e.g., micron-level aperture). The filter device 3 contains a closed cavity (filtration space), which communicates with the internal flow channel of the liquid storage pipe 2 through the filter holes.

[0059] It can be understood that the filtration space is a transitional cavity for the liquid. After passing through the inlet of the filter device 3, the liquid first enters the filtration space and then enters the internal flow channel of the storage pipe 2 through the filter holes. In this way, the liquid needs to pass through the initial interception (such as coarse filtration) at the inlet before entering the filtration space, and then further pass through the fine interception of the filter holes after entering the space, thereby achieving a staged interception effect. At the same time, the flow of the liquid in the filtration space increases the contact time with the filter holes, thereby improving the interception efficiency.

[0060] Furthermore, the end of the extension section may not be closed, in which case both the outer peripheral wall and the end of the extension section are provided with filter holes; or, the end of the extension section may also be closed, in which case only the outer peripheral wall of the extension section is provided with filter holes. In this way, the liquid must flow through the filter holes after entering the filtration space in order to enter the internal flow channel of the liquid storage tube 2, thereby achieving fine filtration of the liquid.

[0061] Specifically, the working principle of the filter device 3 is as follows: After the liquid enters the inlet 21 of the storage pipe 2 from the outside, it first enters the filtration space through the inlet end of the filter device 3 (at this time, it may have already passed through the preliminary interception structure of the inlet end, such as coarse holes or a pre-filtration layer); when the liquid flows in the filtration space, due to the closed nature of the space, the flow rate decreases, causing some particles to settle or be intercepted by the inner wall of the space; the liquid needs to pass through the filter holes from the filtration space into the internal flow channel of the storage pipe 2. At this time, the filter holes act as the last barrier, intercepting the remaining fine particles; the clean liquid intercepted by the filter holes enters the water jet body 1 through the main channel of the storage pipe 2.

[0062] In summary, in this embodiment, the liquid undergoes preliminary filtration (such as coarse pores or a pre-filtration layer) at the inlet before entering the filtration space. Furthermore, as the liquid passes through the filter pores, fine particles are intercepted, ensuring the cleanliness of the liquid ultimately entering the storage pipe 2. Thus, the liquid undergoes double filtration before entering the main channel of the storage pipe 2, reducing the risk of particle accumulation on the inner wall of the storage pipe 2. Simultaneously, this invention can utilize the low flow rate within the filtration space to promote particle sedimentation, thereby further improving filtration efficiency.

[0063] Furthermore, this invention simplifies the system structure by combining the filter space and filter holes, eliminating the need for additional multi-stage filtration devices 3.

[0064] like Figure 2 As shown, according to some embodiments of the present invention, the filter device 3 is detachably connected to the inlet 21 of the liquid storage pipe 2.

[0065] For example, the inlet end of the filter device 3 is designed with an interface (such as a plug 31, thread, flange, or snap-fit ​​structure) that matches the inlet 21 of the liquid storage pipe 2, ensuring that the two can be quickly disassembled and installed. In this way, when installation is required, the user can align the inlet interface of the filter device 3 with the inlet 21 of the liquid storage pipe 2 and fix it by rotation, snap-fit, or thread tightening; when disassembly is required, the user can quickly separate the filter device 3 from the liquid storage pipe 2 by reversing the operation (such as rotating the thread counterclockwise, pressing the snap-fit ​​release key, etc.).

[0066] In this way, the filter device 3 can be quickly replaced or cleaned without disassembling the entire liquid storage pipe 2 or the water jet assembly, saving downtime. At the same time, the filter device 3 with different pore sizes can be quickly replaced according to the working conditions (such as different particle sizes or liquid composition), improving the system flexibility.

[0067] Furthermore, in some specific embodiments, the inlet end of the filter device 3 is directly and sealed to the inlet 21 of the liquid storage pipe 2 (e.g., by thread or flange connection) to ensure that liquid can only enter the filtration space and the interior of the liquid storage pipe 2 through the inlet end of the filter device 3, preventing liquid from seeping into the interior of the liquid storage pipe 2 through the gap between the inlet end of the filter device 3 and the inlet 21 of the liquid storage pipe 2. For example, a sealing ring or gasket is provided at the connection to ensure that there is no liquid leakage during connection.

[0068] like Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the outer peripheral wall of the filter device 3 is provided with a plurality of first filter holes 331, and at least a portion of the outer peripheral wall of the filter device 3 is spaced apart from the inner peripheral wall of the liquid storage tube 2 to define a flow gap 22.

[0069] In the liquid flow path, the inlet 21, the filter space, the first filter hole 331, the flow gap 22 and the water jet nozzle 11 are connected in sequence.

[0070] In this embodiment, the pore size of the first filter hole 331 is precisely designed to intercept particles of a specific size (e.g., micron-sized precipitates produced by the decomposition of potassium permanganate). The first filter holes 331 can be evenly distributed on the outer peripheral wall of the filter device 3 to ensure uniform liquid flow and prevent local blockage. A certain gap is maintained between a portion of the outer peripheral wall of the filter device 3 and the inner peripheral wall of the liquid storage tube 2, thereby defining a flow gap 22. This gap not only allows liquid to flow through but also helps to further disperse the liquid flow, reduce turbulence, and promote more uniform flow.

[0071] The liquid flow path can be understood as follows: Liquid enters the filtration space inside the filter device 3 from the outside through the inlet 21 of the storage pipe 2. The filtration space, as a closed or semi-closed cavity, provides an initial buffer area, allowing the liquid to undergo preliminary sedimentation or separation before entering the first filter hole 331. After the liquid fills the filtration space, it needs to flow out through the first filter hole 331 located on the outer peripheral wall. This process effectively intercepts larger particles in the liquid, ensuring the cleanliness of the liquid in subsequent processes. The liquid filtered through the first filter hole 331 flows into the flow gap 22 between the outer peripheral wall of the filter device 3 and the inner peripheral wall of the storage pipe 2. This annular gap helps the liquid achieve a more uniform distribution before entering the main channel of the storage pipe 2, and also helps to further capture any small particles that were not completely intercepted by the first filter hole 331. Finally, the liquid treated as described above enters the main channel of the storage pipe 2 through the flow gap 22 and eventually reaches the water jet nozzle 11, completing the entire liquid flow path.

[0072] In this way, by combining primary filtration (first filter orifice 331) with secondary distribution and auxiliary filtration (flow gap 22), the overall filtration efficiency is greatly improved, and the risk of particulate matter residue is reduced. Furthermore, the uniform liquid distribution avoids uneven spraying or particulate residue problems caused by excessively high local flow velocities, enhancing the stability and reliability of the system. In addition, no complex auxiliary equipment is needed; efficient filtration and fluid management can be achieved simply by rationally designing the outer peripheral wall of the filter device 3 and the flow gap 22, simplifying the system structure.

[0073] like Figure 4 As shown, further, the filter device 3 is coaxially arranged with the liquid storage tube 2; along the length direction of the liquid storage tube 2, the gap distance between the outer peripheral wall of the filter device 3 and the inner peripheral wall of the liquid storage tube 2 is equal; and / or, along the circumferential direction of the liquid storage tube 2, the gap distance between the outer peripheral wall of the filter device 3 and the inner peripheral wall of the liquid storage tube 2 is equal.

[0074] It is understood that the filter device 3 and the liquid storage pipe 2 are coaxially arranged, that is, the central axis of the filter device 3 coincides with the central axis of the liquid storage pipe 2. The above design ensures that the filter device 3 is accurately and stably positioned within the liquid storage pipe 2, avoiding problems such as uneven fluid distribution or increased local wear that may be caused by eccentric installation.

[0075] On the one hand, along the length of the liquid storage tube 2, the gap distance between the outer peripheral wall of the filter device 3 and the inner peripheral wall of the liquid storage tube 2 remains consistent, thereby ensuring that the liquid can pass through the flow gap 22 uniformly throughout the entire length range, avoiding flow rate fluctuations or local blockages caused by gap changes.

[0076] On the other hand, the gap distance between the outer peripheral wall of the filter device 3 and the inner peripheral wall of the liquid storage pipe 2 is also consistent along the circumferential direction of the liquid storage pipe 2, which further ensures that the liquid can be evenly distributed in the circumferential direction, preventing the occurrence of local flow rates that are too high or too low, thereby improving the working efficiency and stability of the system.

[0077] In this way, the coaxial arrangement of the filter device 3 and the liquid storage pipe 2, along with the design of their uniform gap, not only improves the effect of liquid filtration and distribution, but also enhances the reliability and durability of the system.

[0078] In some specific embodiments, the gap distance between the outer peripheral wall of the filter device 3 and the inner peripheral wall of the liquid storage tube 2 is greater than or equal to 3 mm and less than or equal to 5 mm.

[0079] In this way, a gap distance of 3mm to 5mm helps control the liquid flow rate, avoiding excessive pressure loss due to too small a gap or turbulence caused by too large a gap. This ensures a smoother and more uniform flow of liquid in the flow gap 22, reducing energy loss. At the same time, the appropriate gap width allows small particles that are not completely intercepted by the first filter hole 331 to further settle or adhere to the wall surface in the flow gap 22, improving the overall filtration efficiency.

[0080] Furthermore, depending on the application scenario and liquid characteristics, a suitable gap distance (such as 3mm, 4mm, or 5mm) can be selected between the outer peripheral wall of the filter device 3 and the inner peripheral wall of the liquid storage tube 2 to meet specific filtration and fluid management requirements. For example, a smaller gap can be selected when higher filtration accuracy is required, while a larger gap can be selected when a larger flow rate is required.

[0081] According to some other embodiments of the present invention, the end wall of the filter device 3 away from the inlet 21 is provided with a plurality of second filter holes; in the liquid flow path, the inlet 21, the filter space, the second filter holes, the internal flow channel of the liquid storage pipe 2 and the water jet nozzle 11 are connected in sequence.

[0082] In this embodiment, the second filter hole is located on the end wall of the filter device 3. Its design ensures that after passing through the filtration space, the liquid must pass through the second filter hole before entering the internal flow channel of the liquid storage tube 2. Depending on the specific application requirements, the pore size of the second filter hole can be designed to be different sizes (such as micrometers or nanometers) to intercept particles of specific sizes. For example, the pore size suitable for high-precision applications can be 0.2 μm to 5 μm, while the pore size suitable for coarse filtration can be 10 μm to 50 μm.

[0083] The second filter holes are usually evenly distributed along the end wall (such as in a ring array or grid pattern) to ensure the uniformity of liquid flow and avoid local blockage or uneven flow rate. The drilling of the second filter holes can be carried out using laser drilling technology or other precision processing methods to ensure the accuracy of the hole diameter and distribution.

[0084] The function of the second filter pore is understood to be as follows: In the liquid flow path, the second filter pore acts as the final filtration layer, intercepting fine particles (such as micron-sized precipitates in the decomposition products of potassium permanganate) that were not captured by the preceding filtration steps. It should be explained that if only the second filter pore is provided, it undertakes the entire filtration task; if it coexists with the first filter pore 331, it acts as a secondary filtration layer, further improving the filtration accuracy.

[0085] In this way, the precise pore size design ensures effective interception of target particles, meeting the filtration needs of different scenarios. Simultaneously, the uniformly distributed pore structure and end design enhance the system's pressure resistance and extend the equipment's service life. Furthermore, the second filter pore can be used independently or in conjunction with the first filter pore 331, thus adapting to application scenarios of varying complexity.

[0086] like Figure 5 As shown, according to some embodiments of the present invention, the filtration device 3 includes a plug 31, a support frame 32 and a filter screen 33. The plug 31 is hollow and installed in the inlet 21 of the liquid storage pipe 2. One end of the support frame 32 is fixed to the plug 31 and the other end extends into the liquid storage pipe 2. The filter screen 33 is wrapped around the outer periphery of the support frame 32.

[0087] The filter screen 33 is spaced apart from the inner peripheral wall of the liquid storage tube 2, and the interior of the filter screen 33 defines the filtration space. A plurality of first filter holes 331 are distributed on the filter screen 33.

[0088] In this embodiment, the plug 31 is hollow inside, allowing liquid to pass through. It is installed inside the inlet 21 of the liquid storage pipe 2, serving both a sealing and guiding function. The plug 31 is typically made of corrosion-resistant materials (such as stainless steel or engineering plastics) to ensure long-term stability.

[0089] One end of the support frame 32 is fixed to the plug 31, and the other end extends into the liquid storage tube 2, providing a stable support structure. The support frame 32 can be a single or multiple rod-like structure, or a mesh frame, to ensure that the filter screen 33 can be firmly fixed to its outer periphery and maintain its shape without deformation.

[0090] The filter screen 33 is wound around the outer periphery of the support frame 32, forming a cylindrical structure. A certain gap is left between the filter screen 33 and the inner peripheral wall of the liquid storage tube 2 to ensure unobstructed liquid flow. Multiple first filter holes 331 are distributed on the filter screen 33 to intercept particulate matter in the liquid. The size of these holes can be adjusted according to specific application scenarios (e.g., micron-level pore size). The mesh count of the filter screen 33 can be adjusted according to the amount of adhesive removed; for example, a larger mesh count filter screen 33 can be selected for scenarios with high adhesive removal volume, while a smaller mesh count filter screen 33 can be selected for scenarios with low adhesive removal volume, thereby preventing clogging of the water jet head.

[0091] Specifically, the working process of the filtration device 3 is as follows: The liquid first enters the plug 31 through the inlet 21 of the storage pipe 2, and then flows into the filtration space defined by the filter screen 33. Within the filtration space, the liquid is initially buffered and larger particles are settled, reducing the load on subsequent filtration steps. The liquid flows out through the first filter hole 331 on the filter screen 33, intercepting particulate matter in the liquid (such as precipitates produced by the decomposition of potassium permanganate). Due to the gap between the filter screen 33 and the inner wall of the storage pipe 2, the liquid can be evenly distributed and flow out in the entire circumferential direction, avoiding excessively high or low local flow velocities. The filtered clean liquid flows through the internal flow channel of the storage pipe 2 to the water jet nozzle 11, completing the entire liquid flow path.

[0092] In summary, the integrated design of the plug 31, support frame 32, and filter screen 33 reduces the number of complex components, lowering manufacturing costs and maintenance difficulty. Simultaneously, the optimized pore size and distribution of the filter screen 33 ensures effective interception of particles of different sizes, improving overall filtration accuracy. Furthermore, the optimized gap design between the filter screen 33 and the inner wall of the liquid storage pipe 2 improves the liquid flow path, reducing the risk of localized blockages and extending the equipment's service life.

[0093] like Figure 5 As shown, in some specific embodiments, the support frame 32 includes at least two support ribs 321 and at least one support ring 322. One end of each support rib 321 is fixed to the plug 31 and the other end extends into the liquid storage tube 2. All the support ribs 321 extend along the length of the liquid storage tube 2 and are parallel to each other.

[0094] Each of the support rings 322 extends along the circumferential direction of the liquid storage tube 2, and each of the support rings 322 is sleeved and fixed on the outside of all the support ribs 321.

[0095] In this embodiment, the plug 31 serves as the starting point of the support ribs 321, ensuring that each support rib 321 extends from the plug 31 along the length of the liquid storage tube 2 into the interior of the liquid storage tube 2. The support ribs 321 are reinforced with support rings 322, making the entire support frame 32 a robust whole. The support rings 322 are evenly distributed on the outer side of the support ribs 321, ensuring that the filter screen 33 fits tightly against the support frame 32, preventing localized loosening or excessive stretching. The filter screen 33 is wound around the outer periphery of the support frame 32, and the stable framework provided by the support ribs 321 and support rings 322 ensures that the filter screen 33 maintains its shape without deformation under high pressure.

[0096] In this way, the combined design of the support ribs 321 and the support rings 322 significantly improves the overall rigidity and compressive strength of the support frame 32, ensuring that the filter screen 33 can still function normally under high pressure. At the same time, the design of the support frame 32 facilitates the disassembly and replacement of the filter screen 33, reducing maintenance costs and operational difficulty.

[0097] According to some embodiments of this utility model, the filter device 3 is made of metal material.

[0098] For example, the plug 31 is made of high-strength, corrosion-resistant metal material, such as stainless steel (e.g., 316L stainless steel), which has good mechanical properties and excellent corrosion resistance, making it particularly suitable for applications containing chemicals or in high-humidity environments.

[0099] The support ribs 321 and support rings 322 are also made of stainless steel or other suitable metal materials (such as aluminum alloy). These materials not only provide the necessary mechanical strength but also resist corrosion from various chemical media. Understandably, the metal support frame 32 can withstand high pressure without deformation, ensuring that the filter screen 33 maintains the correct shape and position throughout use, avoiding local dents or cracks caused by uneven pressure.

[0100] Filter mesh 33 is typically made of finely woven metal wire mesh, with stainless steel wire mesh being a common material. Compared to non-metallic filter mesh 33, metal filter mesh 33 offers greater durability and better temperature resistance, making it suitable for applications in high-temperature or high-pressure environments.

[0101] In summary, by using metal materials to make the filter device 3, the mechanical strength and durability of the filter device 3 can be improved, its structural stability can be enhanced, its service life can be extended, and its corrosion resistance can be strengthened, making its application range wider.

[0102] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A waterjet assembly, characterized in that, include: The water jet body (1) and the liquid storage pipe (2) are connected to each other. The water jet body (1) is provided with a plurality of water jet nozzles (11). A filter device (3) is connected to the liquid storage pipe (2), and in the liquid flow path, the filter device (3) is located between the water inlet (21) of the liquid storage pipe (2) and the water jet body (1).

2. The waterjet assembly according to claim 1, characterized in that, The filter device (3) is installed at the inlet (21) of the liquid storage pipe (2). The filter device (3) extends along the length of the liquid storage pipe (2) and extends into the interior of the liquid storage pipe (2). The filter device (3) has a filter space inside, and the part of the filter device (3) that extends into the liquid storage tube (2) is provided with filter holes. The filter space is connected to the internal flow channel of the liquid storage tube (2) through the filter holes.

3. The waterjet assembly according to claim 2, characterized in that, The filter device (3) is detachably connected to the inlet (21) of the liquid storage pipe (2).

4. The waterjet assembly according to claim 2, characterized in that, The filter device (3) has a plurality of first filter holes (331) on its outer peripheral wall. At least part of the outer peripheral wall of the filter device (3) is spaced apart from the inner peripheral wall of the liquid storage tube (2) to define a flow gap (22). In the liquid flow path, the water inlet (21), the filter space, the first filter hole (331), the flow gap (22) and the water jet nozzle (11) are connected in sequence.

5. The waterjet assembly according to claim 4, characterized in that, The filter device (3) is coaxially arranged with the liquid storage tube (2); Along the length of the liquid storage tube (2), the gap distance between the outer peripheral wall of the filter device (3) and the inner peripheral wall of the liquid storage tube (2) is equal; and / or, along the circumferential direction of the liquid storage tube (2), the gap distance between the outer peripheral wall of the filter device (3) and the inner peripheral wall of the liquid storage tube (2) is equal.

6. The waterjet assembly according to claim 5, characterized in that, The gap distance between the outer peripheral wall of the filter device (3) and the inner peripheral wall of the liquid storage tube (2) is greater than or equal to 3 mm and less than or equal to 5 mm.

7. The waterjet assembly according to claim 2, characterized in that, The filter device (3) has a plurality of second filter holes on the end wall away from the water inlet (21); in the liquid flow path, the water inlet (21), the filter space, the second filter holes, the internal flow channel of the liquid storage pipe (2) and the water jet nozzle (11) are connected in sequence.

8. The waterjet assembly according to any one of claims 2 to 7, characterized in that, The filtration device (3) includes a plug (31), a support frame (32), and a filter screen (33). The plug (31) is hollow and installed in the inlet (21) of the liquid storage pipe (2). One end of the support frame (32) is fixed to the plug (31) and the other end extends into the liquid storage pipe (2). The filter screen (33) is wrapped around the outer periphery of the support frame (32). The filter screen (33) is spaced apart from the inner peripheral wall of the liquid storage tube (2), and the interior of the filter screen (33) defines the filtration space. The filter screen (33) has a plurality of filter holes distributed on it.

9. The waterjet assembly according to claim 8, characterized in that, The support frame (32) includes at least two support ribs (321) and at least one support ring (322). One end of each support rib (321) is fixed to the plug (31) and the other end extends into the liquid storage tube (2). All the support ribs (321) extend along the length of the liquid storage tube (2) and are parallel to each other. Each of the support rings (322) extends along the circumferential direction of the liquid storage tube (2), and each of the support rings (322) is sleeved and fixed on the outside of all the support ribs (321).

10. The waterjet assembly according to any one of claims 1 to 7, characterized in that, The filter devices (3) are all made of metal.

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