Water jet spray gun and water jet device

Abstract

The utility model discloses a water jet spray gun and a water jet device, the water jet spray gun comprises a spray gun seat, the spray gun seat forms a liquid cavity, an air cavity, a liquid inlet and an air inlet, the liquid inlet is communicated with the liquid cavity and used for connecting a liquid supply pipe, the air inlet is communicated with the air cavity and used for connecting an air supply pipe, and a plurality of nozzles, the plurality of nozzles are connected to the spray gun seat or integrally formed on the spray gun seat, and the plurality of nozzles are respectively communicated with the liquid cavity; wherein a plurality of air guide channels are further arranged in the spray gun seat, and each air guide channel extends from the air cavity to be communicated with one nozzle. According to the water jet spray gun, the nozzles are connected with the liquid supply pipe through the single liquid cavity to supply liquid uniformly and connected with the air supply pipe through the single air cavity to supply air uniformly, the number of the liquid supply pipes and the number of the air supply pipes needing to be connected are reduced, cost is reduced, and occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to the field of workpiece surface polishing, in particular to a water jet spray gun and a water jet device. Background Art

[0002] Water jet polishing is a polishing process that uses a polishing fluid mixed with fine abrasive particles to act on the surface of the workpiece at high speed through a small nozzle hole. The surface roughness of the workpiece is quantitatively corrected by controlling process parameters such as the pressure, angle and injection time of the polishing fluid.

[0003] To cover a large area, water jet polishing equipment typically uses a water jet gun assembly with multiple nozzles to spray the polishing liquid. In this technique, each nozzle is individually connected to an air and liquid supply pipe, resulting in multiple and complex pipes, high costs, and a large space requirement. Utility Model Content

[0004] The main purpose of the utility model is to provide a water jet spray gun, aiming to solve the technical problem in the related art that each nozzle of a water jet spray gun with multiple nozzles is separately connected to an air pipe and a liquid pipe, resulting in a large number of pipelines.

[0005] To achieve the above objectives, the present invention provides a water jet spray gun, which includes:

[0006] A spray gun seat, wherein the spray gun seat is formed with a liquid cavity, an air cavity, a liquid inlet, and an air inlet, wherein the liquid inlet is communicated with the liquid cavity and is used to connect to a liquid supply pipe, and the air inlet is communicated with the air cavity and is used to connect to the air supply pipe;

[0007] a plurality of nozzles, the plurality of nozzles being connected to the spray gun base or being integrally formed with the spray gun base, the plurality of nozzles being respectively communicated with the liquid chamber;

[0008] Wherein, a plurality of air guide channels are further provided in the spray gun seat, and each of the air guide channels extends from the air cavity and connects to one of the nozzles.

[0009] In some embodiments, the spray gun holder is provided with a plurality of air guide tubes, and an air guide channel is formed in each of the air guide tubes.

[0010] In some embodiments, the spray gun holder is further formed with a plurality of liquid outlets communicating with the liquid cavity, and each of the nozzles is connected to the liquid cavity by docking with one of the liquid outlets;

[0011] The air cavity and the liquid cavity are arranged vertically along the height direction of the spray gun seat. The air guide tube is arranged through the liquid cavity. One end of the air guide tube is connected to the air cavity, and the other end of the air guide tube extends into the liquid outlet to be connected to the nozzle.

[0012] In some embodiments, the axis of the air guide tube and the axis of the nozzle correspondingly connected thereto are arranged collinearly.

[0013] In some embodiments, the liquid cavity is a cylindrical cavity, and the plurality of nozzles are sequentially arranged along the length direction of the liquid cavity;

[0014] There is one liquid inlet, and the liquid inlet is located at one end of the liquid cavity along the length direction thereof.

[0015] In some embodiments, the air cavity is a cylindrical cavity, and the plurality of air guide tubes are sequentially arranged along the length direction of the liquid cavity;

[0016] At least two air inlets are provided, and the at least two air inlets are respectively provided at opposite ends of the air cavity along the length direction thereof.

[0017] In some embodiments, the water jet spray gun includes at least two spray gun seats, the at least two spray gun seats are arranged side by side and connected, and each of the spray gun seats is formed with a liquid cavity, an air cavity, a liquid inlet, an air inlet and at least two air guide channels;

[0018] Furthermore, each of the spray gun seats is provided with at least two nozzles, which are connected to the spray gun seat or integrally formed on the spray gun seat, and the at least two nozzles are respectively communicated with the liquid cavity, and each of the air guide channels extends from the air cavity to connect to one of the nozzles.

[0019] In some embodiments, the spray direction of the nozzles on each of the spray gun mounts is the same; and / or,

[0020] The spraying directions of the nozzles between the at least two spray gun seats are different.

[0021] In some embodiments, the at least two spray gun seats are provided with connecting holes, and the water jet spray gun further includes a connecting piece, which is passed through the connecting holes of the at least two spray gun seats to connect the at least two spray gun seats.

[0022] The utility model also provides a water jet device, which includes a liquid supply component, an air supply component and the water jet spray gun as described above, wherein the liquid supply component is connected to the liquid inlet through a liquid supply pipe, and the air supply component is connected to the air inlet through an air supply pipe.

[0023] During operation, the polishing liquid enters the liquid chamber of the spray gun holder through the liquid inlet and then flows into the multiple nozzles. Simultaneously, gas enters the air chamber of the spray gun holder through the air inlet and then is directed into the multiple nozzles through multiple air guide channels, thereby pressurizing the polishing liquid in the nozzles and causing them to be ejected. In the water jet spray gun, the multiple nozzles are connected to a single liquid supply pipe for unified liquid supply and a single air supply pipe for unified air supply through a single air chamber, thereby reducing the number of required liquid and air supply pipes, lowering costs, and reducing space requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a water jet spray gun in one embodiment of the present utility model;

[0025] Figure 2 for Figure 1 A schematic structural diagram of a portion of a water jet spray gun in an embodiment. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the schemes in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0029] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0030] The utility model embodiment provides a water jet spray gun, referring to Figure 1 and Figure 2 , the water jet spray gun includes:

[0031] The spray gun holder 100 is formed with a liquid chamber 110, an air chamber 120, a liquid inlet Y, and an air inlet Q. The liquid inlet Y is connected to the liquid chamber 110 and is used to connect to the liquid supply pipe. The air inlet Q is connected to the air chamber 120 and is used to connect to the air supply pipe.

[0032] Multiple nozzles 200, the multiple nozzles 200 are connected to the spray gun base 100 or are integrally formed with the spray gun base 100, and the multiple nozzles 200 are respectively communicated with the liquid chamber 110;

[0033] A plurality of air guide channels D are further provided in the spray gun holder 100 , and each air guide channel D extends from the air cavity 120 to connect to a nozzle 200 .

[0034] The water jet spray gun involved in this embodiment is mainly used in a water jet polishing device as a polishing liquid spraying tool, used to spray polishing liquid toward the polishing consumables (mainly used to contact and polish the workpiece) and / or the workpiece, thereby assisting the polishing consumables in water jet polishing.

[0035] like Figure 2The water jet spray gun is mainly composed of a spray gun base 100 and a plurality of nozzles 200. The spray gun base 100 can be square, such as rectangular. The spray gun base 100 is provided with chambers such as a liquid chamber 110 and an air chamber 120, as well as a liquid inlet Y and an air inlet Q. The spray gun base 100 can be connected to a liquid supply pipe through the liquid inlet Y, and the liquid supply pipe can then transport polishing liquid into the liquid chamber 110 through the liquid inlet Y. The spray gun base 100 can also be connected to an air supply pipe through the air inlet Q, and the air supply pipe can then transport gas into the air chamber 120 through the air inlet Q. The number of liquid inlets Y and air inlets Q can be set according to actual needs. Each liquid inlet Y is connected to a corresponding liquid supply pipe, and each air inlet Q is connected to a corresponding air supply pipe. Alternatively, the spray gun holder 100 may have a dual-body structure, comprising a first body and a second body detachably connected thereto. The liquid chamber 110 is located on the first body, with the liquid inlet Y correspondingly located thereon. The air chamber 120 is located on the second body, with the air inlet Q correspondingly located thereon. Alternatively, the spray gun holder 100 may have a single-body structure, with the liquid chamber 110, air chamber 120, liquid inlet Y, and air inlet Q integrally located thereon.

[0036] The function of the nozzle 200 is to spray the polishing liquid, wherein the nozzle 200 is located at the bottom of the spray gun holder 100, connected to the spray gun holder 100, or integrally formed with the spray gun holder 100, without limitation. In addition, the number of nozzles 200 can be set according to actual conditions (such as the spray coverage range, etc.). For example, there are five nozzles 200, and the five nozzles 200 are arranged in sequence along the width direction of the spray gun holder 100. Specifically, the plurality of nozzles 200 are connected to the liquid chamber 110. When the polishing liquid is introduced into the liquid chamber 110, the polishing liquid in the liquid chamber 110 is diverted and flows into the plurality of nozzles 200.

[0037] The function of the air guide channel D in the spray gun holder 100 is to guide the gas in the air cavity 120 into the nozzle 200, and to pressurize the polishing liquid in the nozzle 200 through the gas, so that the polishing liquid is ejected from the nozzle 200. The number of air guide channels D provided is the same as the number of nozzles 200, and the multiple air guide channels D correspond one-to-one to the multiple nozzles 200. When gas is introduced into the air cavity 120, the gas in the air cavity 120 is guided into the multiple nozzles 200 through the diversion and guidance of the multiple air guide channels D. The air guide channel D can be constructed on the spray gun holder 100, or a gas guide component can be provided on the spray gun holder 100, and the air guide channel D is formed by the gas guide component. This embodiment does not impose any restrictions on this.

[0038] During the operation of the water jet spray gun, the polishing liquid enters the liquid cavity 110 of the spray gun holder 100 through the liquid inlet Y, and then flows into the multiple nozzles 200 accordingly. At the same time, the gas enters the air cavity 120 of the spray gun holder 100 through the air inlet Q, and then is introduced into the multiple nozzles 200 respectively through multiple air guide channels D, so that the polishing liquid in the nozzle 200 is pressurized by the gas to be sprayed out.

[0039] In the water jet spray gun of the present invention, multiple nozzles 200 are connected to the liquid supply pipe through a single liquid cavity 110 for unified liquid supply and are connected to the air supply pipe through a single air cavity 120 for unified air supply, which reduces the number of liquid supply pipes and air supply pipes that need to be connected, reduces costs and reduces occupied space.

[0040] In some embodiments, reference Figure 2 The spray gun holder 100 is provided with a plurality of air guide tubes 300, each of which forms an air guide channel D. In this embodiment, the number of air guide tubes 300 is the same as the number of nozzles 200, and the plurality of air guide tubes 300 correspondingly form a plurality of air guide channels D. For example, if there are five nozzles 200, there are five corresponding air guide tubes 300, and the five air guide tubes 300 correspondingly form five air guide channels D. The two ends of the air guide tube 300 are respectively connected to the air cavity 120 and the nozzle 200. The gas in the air cavity 120 is introduced into the nozzle 200 through the air guide channel D in the air guide tube 300. The air guide tube 300 is detachably provided on the spray gun holder 100. Optionally, one end of the air guide tube 300 is detachably connected to the air outlet of the air cavity 120, and the other end of the air guide tube 300 is connected to the nozzle 200.

[0041] In some embodiments, reference Figure 2 The spray gun holder 100 is further formed with a plurality of liquid outlets C communicating with the liquid chamber 110 , and each nozzle 200 is connected to the liquid chamber 110 by docking with a liquid outlet C;

[0042] The air cavity 120 and the liquid cavity 110 are arranged vertically along the height direction of the spray gun holder 100. The air guide tube 300 is set through the liquid cavity 110. One end of the air guide tube 300 is connected to the air cavity 120, and the other end of the air guide tube 300 extends into the liquid outlet C to communicate with the nozzle 200.

[0043] Specifically, multiple air ducts 300 are disposed through the liquid cavity 110 and correspond one-to-one with the multiple liquid outlets C of the liquid cavity 110. One end of the air duct 300, connected to the gas cavity 120, serves as the air inlet, while the other end, extending into the liquid outlet C, serves as the air outlet. When the air outlet end of the air duct 300 extends into the liquid outlet C, an annular gap is formed between it and the inner wall of the liquid outlet C. The polishing liquid in the liquid cavity 110 flows into the nozzle 200 through this annular gap. The air outlet end of the air duct 300 also serves as the outlet, allowing the gas in the gas cavity 120 to flow from the liquid outlet C into the nozzle 200. The high pressure of the gas then causes the polishing liquid in the nozzle 200 to be ejected from its nozzle. By disposing the air duct 300 through the liquid cavity 110, the space within the liquid cavity 110 is utilized to accommodate the air duct 300, eliminating the need for additional space and achieving a compact structure.

[0044] In some embodiments, reference Figure 2 The axis of the air duct 300 is collinearly arranged with the axis of the nozzle 200 to which it is connected. In this embodiment, since the axis of the air duct 300 and the axis of the nozzle 200 are collinearly arranged, the air guide direction of the air duct 300 and the spray direction of the nozzle 200 are aligned. Consequently, the gas introduced into the nozzle 200 by the air duct 300 directly pressurizes the polishing liquid in the nozzle 200, causing it to be ejected directly from the nozzle 200's ejection port, resulting in a good, reliable, and stable spray effect.

[0045] In some embodiments, reference Figure 2 , the liquid cavity 110 is a cylindrical cavity, and the plurality of nozzles 200 are sequentially arranged along the length direction of the liquid cavity 110;

[0046] One liquid inlet Y is provided, and the liquid inlet Y is located at one end of the liquid cavity 110 along the length direction thereof.

[0047] Specifically, during the operation of the water jet spray gun, the polishing liquid enters the liquid chamber 110 from one end of the liquid chamber 110 through the liquid inlet Y and flows along the liquid chamber 110. When it flows to the position of each nozzle 200, the corresponding branch flows into the corresponding nozzle 200.

[0048] In some embodiments, reference Figure 2 The air cavity 120 is a cylindrical cavity, and a plurality of air guide tubes 300 are sequentially arranged along the length direction of the liquid cavity 110;

[0049] At least two air inlets Q are provided, and the at least two air inlets Q are respectively provided at two opposite ends of the air cavity 120 along the length direction thereof.

[0050] Specifically, during operation of the water jet spray gun, gas enters the air cavity 120 from at least two air inlets Q and flows along the air cavity 120. When it reaches the location of each air duct 300, the gas is divided and flows into the corresponding air duct 300, and then introduced into the nozzle 200 through the air duct 300. Taking the longitudinal direction of the air cavity 120 as a reference direction, at least two air inlets Q are provided at both ends of the air cavity 120. For example, two air inlets Q are provided, one at one end of the air cavity 120 and the other at the other end of the air cavity 120. By setting air inlets Q at the opposite ends of the air cavity 120, the gas enters the air cavity 120 from the air inlets Q at the opposite ends of the air cavity 120, and then flows from the opposite ends of the air cavity 120 toward the middle to form convection, and is evenly diverted into each air guide tube 300 during the flow process, so that the air pressure in each nozzle 200 is basically the same, and the multiple nozzles 200 spray the polishing liquid with basically the same spray amount and spray speed, which helps to improve the spray uniformity of the water jet spray gun.

[0051] In some embodiments, reference Figure 1 and Figure 2 The water jet spray gun includes at least two spray gun seats 100, which are arranged side by side and connected. Each spray gun seat 100 is formed with a liquid cavity 110, an air cavity 120, a liquid inlet Y, an air inlet Q and at least two air guide channels D;

[0052] In addition, each spray gun seat 100 is provided with at least two nozzles 200, at least two nozzles 200 are connected to the spray gun seat 100 or are integrally formed on the spray gun seat 100, at least two nozzles 200 are respectively connected to the liquid cavity 110, and each air guide channel D extends from the air cavity 120 to connect to a nozzle 200.

[0053] In this embodiment, the water jet spray gun is composed of a combination of at least two spray gun holders 100 and nozzles 200. Specifically, at least two spray gun holders 100 are stacked and arranged in a sequence along the thickness direction of the spray gun holder 100, with at least two nozzles 200 on each spray gun holder 100 exposed at the bottom. The water jet spray gun, through the combination of at least two spray gun holders 100 and nozzles 200, has a wide spray range and a large spray volume, which helps to improve the polishing liquid spray effect.

[0054] In some embodiments, reference Figure 2, the spraying direction of the nozzles 200 on each spray gun holder 100 is the same. Specifically, for each spray gun holder 100, the spraying directions of the multiple nozzles 200 arranged thereon are the same, for example, the spraying directions of the multiple nozzles 200 on the spray gun holder 100 are all in a 30° left-handed direction obliquely downward. When it is necessary to adjust the spraying directions of the multiple nozzles 200, it is only necessary to adjust the installation angle of the corresponding spray gun holder 100 to achieve unified adjustment of the spraying directions of the multiple nozzles 200. The spraying angle adjustment operation is simple and easy to use. And / or, in some embodiments, refer to Figure 2 , the spraying directions of the nozzles 200 between at least two spray gun mounts 100 are different. Specifically, the spraying directions of the nozzles 200 are different between different spray gun mounts 100. For example, if there are two spray gun mounts 100, the spraying direction of the multiple nozzles 200 on one spray gun mount 100 is obliquely downward and 30° counterclockwise, while the spraying direction of the multiple nozzles 200 on the other spray gun mount 100 is obliquely downward and 30° clockwise. This is merely exemplary and not restrictive. By setting the spraying directions of the nozzles 200 between at least two spray gun mounts 100 to different directions, the water jet spray gun can spray polishing liquid towards different positions, thereby expanding the spraying position and increasing the spraying range.

[0055] In some embodiments, reference Figure 2 At least two spray gun holders 100 are each provided with a connection hole L. The water jet spray gun further includes a connector that extends through the connection holes L of the at least two spray gun holders 100 to connect the at least two spray gun holders 100. In this embodiment, the at least two spray gun holders 100 of the water jet spray gun are connected by the connector that extends through the connection holes L. The connector can be a connecting rod, and the connection hole L is a through hole that is compatible with the connecting rod. When the spray gun holders 100 are assembled, the at least two spray gun holders 100 are individually mounted on the connector through their connection holes L, providing convenient installation and a secure connection.

[0056] The present invention also provides a water jet device, which includes a liquid supply component, an air supply component, and a water jet spray gun as described above. The liquid supply component is connected to the liquid inlet Y through a liquid supply pipe, and the air supply component is connected to the air inlet Q through an air supply pipe. The specific structure of the water jet spray gun involved refers to the above embodiment. Since the water jet device adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought about by the technical solutions of the above embodiments, which will not be described one by one here. The liquid supply component is used to provide polishing liquid to the water jet spray gun. Specifically, the liquid supply component outputs polishing liquid and transports it through the liquid supply pipe. The polishing liquid enters the liquid chamber 110 of the water jet spray gun through the liquid inlet Y. The air supply component is used to provide gas to the water jet spray gun. Specifically, the air supply component outputs gas and transports it through the air supply pipe. The gas enters the air chamber 120 of the water jet spray gun through the air inlet Q.

[0057] The above description is only part or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A water jet spray gun, characterized in that: include: A spray gun seat, wherein the spray gun seat is formed with a liquid cavity, an air cavity, a liquid inlet, and an air inlet, wherein the liquid inlet is communicated with the liquid cavity and is used to connect to a liquid supply pipe, and the air inlet is communicated with the air cavity and is used to connect to the air supply pipe; a plurality of nozzles, the plurality of nozzles being connected to the spray gun base or being integrally formed with the spray gun base, the plurality of nozzles being respectively communicated with the liquid chamber; Wherein, a plurality of air guide channels are further provided in the spray gun seat, and each of the air guide channels extends from the air cavity and connects to one of the nozzles.

2. The water jet spray gun according to claim 1, characterized in that: The spray gun seat is provided with a plurality of air guide tubes, and an air guide channel is formed in each of the air guide tubes.

3. The water jet spray gun according to claim 2, characterized in that: The spray gun base is further formed with a plurality of liquid outlets communicating with the liquid cavity, and each of the nozzles is connected to the liquid cavity by docking with one of the liquid outlets; The air cavity and the liquid cavity are arranged vertically along the height direction of the spray gun seat. The air guide tube is arranged through the liquid cavity. One end of the air guide tube is connected to the air cavity, and the other end of the air guide tube extends into the liquid outlet to be connected to the nozzle.

4. The water jet spray gun according to claim 3, characterized in that: The axis of the air guide tube and the axis of the nozzle correspondingly connected thereto are arranged collinearly.

5. The water jet spray gun according to claim 1, characterized in that: The liquid cavity is a cylindrical cavity, and the plurality of nozzles are arranged in sequence along the length direction of the liquid cavity; There is one liquid inlet, and the liquid inlet is located at one end of the liquid cavity along the length direction thereof.

6. The water jet spray gun according to claim 2, characterized in that: The air cavity is a cylindrical cavity, and the plurality of air guide tubes are sequentially arranged along the length direction of the liquid cavity; At least two air inlets are provided, and the at least two air inlets are respectively provided at opposite ends of the air cavity along the length direction thereof.

7. The water jet spray gun according to any one of claims 1 to 6, characterized in that: The water jet spray gun includes at least two spray gun seats, which are arranged side by side and connected, and each of the spray gun seats is formed with a liquid cavity, an air cavity, a liquid inlet, an air inlet and at least two air guide channels; Furthermore, each of the spray gun seats is provided with at least two nozzles, which are connected to the spray gun seat or integrally formed on the spray gun seat, and the at least two nozzles are respectively communicated with the liquid cavity, and each of the air guide channels extends from the air cavity to connect to one of the nozzles.

8. The water jet spray gun according to claim 7, characterized in that: The spraying direction of the nozzles on each of the spray gun holders is the same; and / or, The spraying directions of the nozzles between the at least two spray gun seats are different.

9. The water jet spray gun according to claim 7, characterized in that: The at least two spray gun seats are both provided with connecting holes, and the water jet spray gun further comprises a connecting piece, which is passed through the connecting holes of the at least two spray gun seats so as to connect the at least two spray gun seats.

10. A water jet device, characterized in that: It comprises a liquid supply component, an air supply component and the water jet spray gun according to any one of claims 1 to 9, wherein the liquid supply component is connected to the liquid inlet through a liquid supply pipe, and the air supply component is connected to the air inlet through an air supply pipe.

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