Universal spray device

Abstract

The utility model relates to a universal spray device. Comprising a connecting assembly, a conduction assembly and a clamping ring, the clamping ring is in an open ring shape and sleeves the connecting assembly, the conduction assembly sleeves the connecting assembly and the clamping ring, and the clamping ring abuts against the conduction assembly and the connecting assembly at the same time in the sleeving direction of the conduction assembly relative to the connecting assembly so that the conduction assembly can be fixed to the connecting assembly. In the assembling process, when the conducting assembly is arranged on the conducting assembly and the clamping ring in a sleeving mode, the clamping ring abuts against the conducting assembly and the connecting assembly at the same time, so that the conducting assembly is fixed to the connecting assembly; therefore, a fixed connection relation between the conducting assembly and the connecting assembly can be realized under the action of the clamping ring only by sleeving the conducting assembly on the connecting assembly, so that the operation process is simplified, and the assembly efficiency of the universal spray device can be improved. And the clamping ring is simple in structure, so that the structure is simplified, and the structure of the whole universal spray device is simple.

Description

Technical Field

[0001] This application relates to the technical field of universal water sprayers, and particularly to a universal water sprayer. Background Art

[0002] A universal water sprayer is a device used for filtering and purifying tap water, aiming to improve the quality and safety of drinking water. They remove impurities, harmful substances in water and improve the taste of water through different technologies and filter materials. However, for traditional universal water sprayers, there are usually defects of complex structure and large assembly difficulty, thus affecting the assembly efficiency of the universal water sprayer. Summary of the Utility Model

[0003] One technical problem solved by this application is how to improve the assembly efficiency of the universal water sprayer on the basis of a simple structure.

[0004] A universal water sprayer includes a connection component, a conduction component and a snap ring. The snap ring is in an open ring shape and sleeved on the connection component. The conduction component is sleeved on the connection component and the snap ring. Along the sleeving direction of the conduction component relative to the connection component, the snap ring is simultaneously abutted against the conduction component and the connection component, so that the conduction component is fixed on the connection component.

[0005] In one embodiment, the connection component includes a main body part and a connecting pipe. The connecting pipe protrudes from the main body part, and an annular groove is recessed on the outer circumferential surface of the connecting pipe. The conduction component includes a sleeving pipe, which has a first sleeving cavity and a second sleeving cavity. The first sleeving cavity and the second sleeving cavity are coaxially arranged. The caliber of the first sleeving cavity is larger than that of the second sleeving cavity. The second sleeving cavity is closer to the main body part relative to the first sleeving cavity. The connecting pipe has a step surface at the communication position of the first sleeving cavity and the second sleeving cavity. The snap ring is partially received in the annular groove and abutted against the step surface.

[0006] In one embodiment, the number of the annular grooves is multiple, and the multiple annular grooves are arranged at intervals along the axial direction of the connecting pipe.

[0007] In one embodiment, the connecting pipe includes a first connecting part and a second connecting part. The first connecting part and the second connecting part are coaxially arranged. The cross-sectional dimension of the first connecting part is smaller than that of the second connecting part. The second connecting part is connected to the main body part. The annular groove is opened on the first connecting part. The connecting pipe has a limiting surface at the connection position of the first connecting part and the second connecting part. The sleeving pipe is sleeved on the first connecting part and abutted against the limiting surface.

[0008] In one embodiment, the conduction component further includes a conduction arm and a cover plate. The conduction arm is integrally formed with the sleeved tube. The conduction arm defines a conduction cavity, and the cover plate is connected to the conduction arm to seal the conduction cavity.

[0009] In one embodiment, the cover plate and the conduction arm are connected by ultrasonic welding.

[0010] In one embodiment, the cover plate includes a cover portion and an insertion portion. The insertion portion protrudes from the cover portion. The conduction cavity includes a first conduction sub-cavity and a second conduction sub-cavity. The diameter of the first conduction sub-cavity is larger than that of the second conduction sub-cavity. The conduction arm has a bearing surface at the connection of the first conduction sub-cavity and the second conduction sub-cavity. The cover portion cooperates with the first conduction sub-cavity and is welded to the bearing surface, and the insertion portion cooperates with the second conduction sub-cavity.

[0011] In one embodiment, it further includes at least one of the following solutions:

[0012] An annular groove is formed in the insertion portion, and the number of the grooves is multiple. The multiple grooves are spaced along the length direction of the insertion portion.

[0013] The conduction arm further includes ultrasonic ridges protruding from the bearing surface, and the ultrasonic ridges are in contact with the cover plate.

[0014] In one embodiment, the circumferential direction of the snap ring has a notch, and the central angle corresponding to the notch is 10° to 30°.

[0015] In one embodiment, the outer circumferential surface of the snap ring includes a first arc surface, a second arc surface, and a connecting plane. The connecting plane is connected between the first arc surface and the second arc surface, and the length of the first arc surface is greater than or equal to the length of the second arc surface.

[0016] One technical effect of an embodiment of the present application is that during the assembly process, when the conduction component is sleeved on the conduction component and the snap ring, the snap ring is simultaneously in contact with the conduction component and the connection component, so that the conduction component is fixed on the connection component. Therefore, only by sleeving the conduction component on the connection component can the fixed connection relationship between the conduction component and the connection component be realized under the action of the snap ring, thereby simplifying the operation process, and thus improving the assembly efficiency of the universal water sprayer. And the structure of the snap ring is simple, thus simplifying the structure, and thus also making the structure of the entire universal water sprayer simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic perspective view of a universal water sprayer provided for one embodiment.

[0018] Figure 2 is Figure 1 the exploded structural schematic diagram of the universal water sprayer shown.

[0019] Figure 3 is Figure 2 the three-dimensional sectional structural schematic diagram of

[0020] Figure 4 is Figure 3 the enlarged structural schematic diagram at position A in

[0021] Figure 5 is Figure 1 the plane sectional structural schematic diagram of the universal water sprayer shown.

[0022] Figure 6 is Figure 5 the enlarged structural schematic diagram at position B in

[0023] Figure 7 is Figure 1 the three-dimensional structural schematic diagram of the snap ring in the universal water sprayer shown.

[0024] Reference numerals: universal water sprayer 10, connection assembly 100, first connection assembly 101, second connection assembly 102, main body portion 110, connecting pipe 120, first connection portion 121, annular groove 1211, second connection portion 122, limiting surface 123, pipe cavity 124, conduction assembly 200, conduction arm 210, conduction cavity 211, first conduction sub-cavity 2111, second conduction sub-cavity 2112, bearing surface 2113, ultrasonic rib 212, cover plate 220, cover portion 221, insertion portion 222, groove 2221, sleeving pipe 230, first sleeving cavity 231, second sleeving cavity 232, step surface 233, snap ring 300, notch 310, first arc surface 321, second arc surface 322, connection plane 323. Detailed implementation manners

[0025] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0026] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0027] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present application, unless otherwise clearly defined and limited, if there are terms such as "mounted", "connected", "connected to", "fixed", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] In the present application, unless otherwise clearly defined and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0030] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If present, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0031] Refer to Figure 1 , Figure 2 and Figure 3 In an embodiment of the present application, a universal water sprayer 10 includes a connection assembly 100, a conduction assembly 200 and a snap ring 300. The snap ring 300 is in an open ring shape and is sleeved on the connection assembly 100. The conduction assembly 200 is sleeved on the conduction assembly 200 and the snap ring 300. Along the sleeving direction of the conduction assembly 200 relative to the connection assembly 100, the snap ring 300 is simultaneously abutted against the conduction assembly 200 and the connection assembly 100, so that the conduction assembly 200 is fixed on the connection assembly 100. The number of connection assemblies 100 can be two. The two connection assemblies 100 can be respectively denoted as a first connection assembly 101 and a second connection assembly 102. The conduction assembly 200 is connected between the first connection assembly 101 and the second connection assembly 102. Liquid can enter the conduction assembly 200 from the first connection assembly 101 and then flow out from the second connection assembly 102.

[0032] Refer to Figure 3 , Figure 5 and Figure 6, in some embodiments, the connecting component 100 includes a main body portion 110 and a connecting pipe 120. The connecting pipe 120 protrudes from the main body portion 110, and liquid flows in the lumen 124 of the connecting pipe 120 and the inner cavity of the main body portion 110. The connecting pipe 120 may include a first connecting portion 121 and a second connecting portion 122. The first connecting portion 121 and the second connecting portion 122 may be coaxially arranged. The cross-sectional dimension of the first connecting portion 121 is smaller than that of the second connecting portion 122, and the second connecting portion 122 is connected to the main body portion 110. The connecting pipe 120 has a limiting surface 123. The limiting surface 123 is located at the connection between the first connecting portion 121 and the second connecting portion 122. The limiting surface 123 is annular and surrounds the first connecting portion 121. In other words, the first connecting portion 121 protrudes from the end surface of the second connecting portion 122 away from the main body portion 110, and the part of the end surface of the second connecting portion 122 away from the main body portion 110 that is not covered by the first connecting portion 121 and is located outside the first connecting portion 121 forms the above-mentioned limiting surface 123. The conducting component 200 is sleeved on the first connecting portion 121, and the end of the conducting component 200 abuts against the limiting surface 123, thereby positioning the installation of the conducting component 200 and improving the assembly efficiency and accuracy of the conducting component 200. In other embodiments, the cross-sectional dimensions of the first connecting portion 121 and the second connecting portion 122 may be equal.

[0033] Refer to Figure 3 , Figure 5 and Figure 6 , in some embodiments, an annular groove 1211 is formed on the outer circumferential surface of the first connecting portion 121. The snap ring 300 cooperates with the annular groove 1211. The annular groove 1211 can position the snap ring 300 along the axial direction of the connecting pipe 120. Obviously, the axial direction of the connecting pipe 120 is the sleeving direction of the conducting component 200 relative to the connecting component 100. The number of the annular grooves 1211 may be multiple, and the multiple annular grooves 1211 are arranged at intervals along the axial direction of the connecting pipe 120. By providing multiple annular grooves 1211, the contact area between the connecting pipe 120 and the conducting component 200 can be reasonably reduced, thereby reducing the frictional resistance generated during the process of sleeving the conducting component 200 on the connecting pipe 120, and thus improving the assembly efficiency of the conducting component 200 and the connecting pipe 120. When there are multiple annular grooves 1211, the snap ring 300 can cooperate with the annular groove 1211 that is farthest from the main body portion 110 and the second connecting portion 122. Of course, the annular grooves 1211 will also reduce the weight of the connecting pipe 120 and the connecting component 100 to a certain extent, thereby realizing the lightweight design of the universal water sprayer 10.

[0034] Refer to Figure 2 , Figure 3 and Figure 6, in some embodiments, the conduction component 200 includes a conduction arm 210, a cover plate 220, and a sleeve tube 230. The conduction arm 210 and the sleeve tube 230 can be integrally formed, and the cover plate 220 is separately formed from the conduction arm 210. The conduction arm 210 encloses a conduction cavity 211. When the cover plate 220 is connected to the conduction arm 210, the cover plate 220 can seal the conduction cavity 211 to prevent the liquid in the conduction cavity 211 from overflowing. The conduction cavity 211 communicates with the lumen 124 of the connecting pipe 120. During the flow of the liquid, the liquid can first flow into the first connection component 101, then flow into the conduction cavity 211 from the lumen 124 in the connecting pipe 120 of the first connection component 101, and then flow from the conduction cavity 211 into the lumen 124 in the connecting pipe 120 of the second connection component 102. Finally, the liquid can flow out from the second connection pipe 120 component. The number of sleeve tubes 230 is two, and the two sleeve tubes 230 are spaced apart on the conduction arm 210. The two sleeve tubes 230 are respectively sleeved on the two connecting pipes 120 of the two connection components 100.

[0035] Refer to Figure 2 , Figure 3 and Figure 6 , in some embodiments, the cover plate 220 and the conduction arm 210 can be welded and connected by an ultrasonic welding process. The cover plate 220 includes a cover portion 221 and an insertion portion 222. The insertion portion 222 protrudes from the cover portion 221. The cross-sectional dimension of the cover portion 221 is larger than that of the insertion portion 222. The conduction cavity 211 includes a first conduction sub-cavity 2111 and a second conduction sub-cavity 2112. The first conduction sub-cavity 2111 and the second conduction sub-cavity 2112 can be coaxially arranged and communicate with each other. The diameter of the first conduction sub-cavity 2111 is larger than that of the second conduction sub-cavity 2112. The conduction arm 210 has a bearing surface 2113, and the bearing surface 2113 is located at the connection of the first conduction sub-cavity 2111 and the second conduction sub-cavity 2112. The bearing surface 2113 surrounds the second conduction sub-cavity 2112. The cover portion 221 is borne on the bearing surface 2113, and the bearing surface 2113 can provide good support and positioning for the cover portion 221 and the entire cover plate 220, thereby improving the assembly efficiency and accuracy of the cover plate 220. After the cover plate 220 is assembled, the cover portion 221 cooperates with the first conduction sub-cavity 2111, and the insertion portion 222 cooperates with the second conduction sub-cavity 2112.

[0036] Refer to Figure 2 , Figure 3 and Figure 6, in some embodiments, the conducting arm 210 further includes an ultrasonic rib 212. The ultrasonic rib 212 protrudes from the bearing surface 2113. The ultrasonic rib 212 can be disposed around the second conducting sub-cavity 2112, such that the ultrasonic rib 212 forms a continuous closed loop. Of course, the ultrasonic rib 212 can also be multiple and in a discrete shape. Multiple ultrasonic ribs 212 are disposed around the second conducting sub-cavity 2112, and the multiple ultrasonic ribs 212 are spaced along the circumferential direction of the second conducting sub-cavity 2112. The ultrasonic rib 212 abuts against the cover portion 221. When the ultrasonic head acts on the cover portion 221, under the action of ultrasonic energy, the ultrasonic rib 212 will melt to generate a molten liquid, and the molten liquid will cool and solidify to form a weld seam, such that the weld seam connects the cover portion 221 and the bearing surface 2113 to each other, thereby realizing the welded connection between the cover plate 220 and the conducting arm 210.

[0037] Refer to Figure 2 、 Figure 3 and Figure 6 , in some embodiments, an annular groove 2221 is formed in the insertion portion 222. The number of the grooves 2221 can be multiple, and the multiple grooves 2221 are spaced along the length direction of the insertion portion 222. By providing the multiple grooves 2221, the contact area between the insertion portion 222 and the conducting arm 210 can be reasonably reduced, thereby reducing the frictional resistance generated during the process of inserting the insertion portion 222 into the conducting arm 210, and thus improving the assembly efficiency between the conducting arm 210 and the cover plate 220. Of course, to a certain extent, the grooves 2221 will also reduce the weight of the insertion portion 222 and the cover plate 220, thereby realizing the lightweight design of the universal water sprayer 10.

[0038] Refer to Figure 2 、 Figure 3 and Figure 7, in some embodiments, the circumferential direction of the snap ring 300 has a notch 310, and the central angle corresponding to the notch 310 is 10° to 30°. For example, the angle corresponding to the notch 310 can be 10°, 20°, or 30°, etc. In this way, the central angle corresponding to the entire snap ring 300 can be greater than 270°. The outer circumferential surface of the snap ring 300 may include a first arc surface 321, a second arc surface 322, and a connecting plane 323. One end of the connecting plane 323 is connected to the first arc surface 321, and the other end of the connecting plane 323 is connected to the second arc surface 322. In this way, the connecting plane 323 is connected between the first arc surface 321 and the second arc surface 322, and the length of the first arc surface 321 is greater than or equal to the length of the second arc surface 322. For example, the length of the first arc surface 321 can be more than twice the length of the second arc surface 322. The snap ring 300 can be processed and formed by a mold using an injection molding process. In view of the connecting plane 323 on the snap ring 300, the demolding resistance of the snap ring 300 can be reduced, thereby improving the processing efficiency of the snap ring 300 and reducing the manufacturing cost. To a certain extent, the processing accuracy of the snap ring 300 can also be improved, thereby improving the processing quality of the snap ring 300.

[0039] Refer to Figure 2 , Figure 3 and Figure 7 , in view of the snap ring 300 being open-ring-shaped, the snap ring 300 has a certain radial elasticity. In the natural state, when an external force acts on the snap ring 300 to reduce the width of the notch 310, the snap ring 300 can overcome its own elastic force to produce a radial contraction effect; when the external force is removed, the snap ring 300 will expand radially under the action of its own elastic force and return to the natural state. Obviously, in the natural state, when an external force acts on the snap ring 300 to increase the width of the notch 310, the snap ring 300 can overcome its own elastic force to produce a radial expansion effect; when the external force is removed, the snap ring 300 will contract radially under the action of its own elastic force and return to the natural state.

[0040] Refer to Figure 2 , Figure 3 and Figure 7, during the assembly process of the universal water sprayer 10, the snap ring 300 can be first fitted with the annular groove 1211 provided on the first connecting pipe 120 farthest from the second connecting pipe 120, and then the sleeve pipe 230 is gradually sleeved on the connecting pipe 120. During the process of gradually sleeving the sleeve pipe 230 on the connecting pipe 120, first, the snap ring 300 will abut against the inner wall surface of the second sleeve cavity 232, causing the snap ring 300 to generate a radial contraction effect. When the sleeve pipe 230 abuts against the limiting surface 123 on the connecting pipe 120, the snap ring 300 will just enter the first sleeve cavity 231. At this time, in view of the fact that the caliber of the first sleeve cavity 231 is larger than that of the second sleeve cavity 232, the snap ring 300 will produce a "falling through" effect, causing the snap ring 300 to generate a radial expansion effect, so that the snap ring 300 abuts against the step surface 233. Therefore, when the snap ring 300 abuts against the step surface 233, that is, one surface in the thickness direction of the snap ring 300 abuts against the step surface 233, and the other surface in the thickness direction of the snap ring 300 abuts against the side wall surface of the annular groove 1211, thus enabling the snap ring 300 to abut between the step surface 233 and the side wall surface of the annular groove 1211, that is, the snap ring 300 abuts between the sleeve pipe 230 and the connecting pipe 120. When a pulling force is applied to make the sleeve pipe 230 disengage from the connecting pipe 120, due to the abutting and interference effects of the snap ring 300, the sleeve pipe 230 will not be able to disengage from the connecting pipe 120, so that a fixed connection relationship between the sleeve pipe 230 and the connecting pipe 120 can be well achieved, and finally a fixed connection relationship between the conduction assembly 200 and the connection assembly 100 can be realized. In view of the simple structure of the snap ring 300, during the assembly process, only by directly sleeving the sleeve pipe 230 on the connecting pipe 120 can the fixed connection relationship between the conduction assembly 200 and the connection assembly 100 be realized, thereby simplifying the operation process, and thus the assembly efficiency of the universal water sprayer 10 can be improved. After the sleeve pipe 230 and the connecting pipe 120 are assembled, the cover plate 220 can be assembled onto the conduction arm 210. Specifically, the insertion portion 222 is inserted into the second conduction sub-cavity 2112, so that the cover portion 221 is fitted with the first conduction sub-cavity 2111 and abuts against the bearing surface 2113, and then the cover portion 221 and the bearing surface 2113 are welded and connected through an ultrasonic welding process, so that a fixed connection relationship between the entire cover plate 220 and the conduction arm 210 can be realized.

[0041] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0042] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A universal water spray device, characterized in that: It includes a connecting component, a conducting component and a snap ring, wherein the snap ring is in an open ring shape and is sleeved on the connecting component, and the conducting component is sleeved on the connecting component and the snap ring. Along the sleeve direction of the conducting component relative to the connecting component, the snap ring abuts against the conducting component and the connecting component at the same time to fix the conducting component on the connecting component.

2. The universal water spray device according to claim 1, characterized in that: The connecting component includes a main body and a connecting pipe, the connecting pipe is protrudingly arranged on the main body, and an annular groove is formed in a depression on the outer circumferential surface of the connecting pipe; the conducting component includes a sleeve tube, the sleeve tube has a first sleeve cavity and a second sleeve cavity, the first sleeve cavity and the second sleeve cavity are coaxially arranged, the caliber of the first sleeve cavity is larger than the caliber of the second sleeve cavity, the second sleeve cavity is closer to the main body than the first sleeve cavity, the connecting pipe has a step surface located at the connection point between the first sleeve cavity and the second sleeve cavity, and the retaining ring part is accommodated in the annular groove and abuts against the step surface.

3. The universal water spray device according to claim 2, characterized in that: There are multiple annular grooves, and the multiple annular grooves are arranged at intervals along the axial direction of the connecting pipe.

4. The universal water spray device according to claim 2, characterized in that: The connecting pipe includes a first connecting part and a second connecting part, the first connecting part and the second connecting part are coaxially arranged, the cross-sectional size of the first connecting part is smaller than the cross-sectional size of the second connecting part, the second connecting part is connected to the main body, the annular groove is provided on the first connecting part, the connecting pipe has a limiting surface located at the connection between the first connecting part and the second connecting part, and the sleeve tube is sleeved on the first connecting part and abuts against the limiting surface.

5. The universal water spray device according to claim 2, characterized in that: The conduction assembly further includes a conduction arm and a cover plate. The conduction arm is integrally formed with the sleeve tube. The conduction arm surrounds a conduction cavity. The cover plate is connected to the conduction arm to cover the conduction cavity.

6. The universal water spray device according to claim 5, characterized in that: The cover plate is welded to the conducting arm by an ultrasonic welding process.

7. The universal water spray device according to claim 6, characterized in that: The cover plate includes a cover portion and an insertion portion, the insertion portion is protrudingly arranged on the cover portion, the conduction cavity includes a first conduction sub-cavity and a second conduction sub-cavity, the caliber of the first conduction sub-cavity is larger than the caliber of the second conduction sub-cavity, the conduction arm has a bearing surface located at the connection between the first conduction sub-cavity and the second conduction sub-cavity, the cover portion cooperates with the first conduction sub-cavity and is welded to the bearing surface, and the insertion portion cooperates with the second conduction sub-cavity.

8. The universal water spray device according to claim 7, characterized in that: Also includes at least one of the following options: The inserting portion is provided with an annular groove, the number of the grooves is multiple, and the multiple grooves are arranged at intervals along the length direction of the inserting portion; The conducting arm further comprises an ultrasonic convex strip protruding from the bearing surface, and the ultrasonic convex strip abuts against the cover plate.

9. The universal water spray device according to claim 1, characterized in that: The clamping ring has a notch in the circumference, and the central angle corresponding to the notch is 10° to 30°.

10. The universal water spray device according to claim 1, characterized in that: The outer peripheral surface of the retaining ring includes a first arc surface, a second arc surface and a connecting plane, the connecting plane is connected between the first arc surface and the second arc surface, and the length of the first arc surface is greater than or equal to the length of the second arc surface.

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