A kind of spray head has the waterproof paint spraying device of quick disassembly structure

By designing a quick-disassembly nozzle assembly and a feeding assembly, the problems of complicated and unstable nozzle disassembly are solved, enabling quick nozzle replacement and preventing sedimentation of the spraying liquid, thus improving the convenience and practicality of the spraying device.

CN224321636UActive Publication Date: 2026-06-05WUXI DAMEI SPRAYING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI DAMEI SPRAYING CO LTD
Filing Date
2025-05-21
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The disassembly process of the nozzles in existing waterproof coating spraying devices is complicated, the nozzles are not securely attached and are prone to loosening and falling off, and spare nozzles need to be carried separately, which is inconvenient to use.

Method used

The waterproof coating spraying device features a quick-disassembly structure for the nozzle. It achieves rapid nozzle replacement through components such as a limiting shaft, movable groove, connecting plate, fixing ring, and conical sleeve. Combined with the mixing shaft and mixing blades of the feeding assembly, it prevents the sprayed liquid from settling.

Benefits of technology

It enables quick disassembly and easy replacement of the spray nozzle, improving the convenience and practicality of the device, preventing clogging of the spray liquid, and enhancing operational flexibility and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to related fields of spraying device, especially waterproof coating spraying device with quick detachable structure of spray head, including device body, the device body contains spraying gun, spray head spare, connecting assembly and blanking assembly, the spraying gun lower extreme is equipped with the handle and is equipped with the outer connecting seat in the front end, the outer connecting seat outer wall has opened the outer thread and is equipped with the sealing ring in the outer end, spray head spare sets up three groups, three groups spray head spare with connecting assembly fixed and connect on the outer connecting seat, the spraying gun top is provided with upper connecting seat, the blanking assembly is installed on the upper connecting seat, the connecting assembly contains the mounting seat and the conical cover, the blanking assembly contains the blanking barrel, can realize the quick replacement operation to spray head spare, is convenient for three groups spray head spare to carry out the quick rotation switching and quick dismounting, can carry out the convenient stirring to the spraying liquid, prevents the precipitation of spraying liquid in the blanking barrel, prevents the coating from blocking the spraying gun.
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Description

Technical Field

[0001] This utility model relates to the field of spraying devices, and in particular to a waterproof coating spraying device with a quick-release structure for the spray nozzle. Background Technology

[0002] Waterproof coating is a viscous liquid polymer synthetic material that has no fixed shape at room temperature. After being applied, it cures through solvent evaporation, water evaporation, or reaction, forming a tough waterproof film on the substrate surface. Waterproof coating has good extensibility and crack resistance. When using waterproof coating, it usually needs to be applied using spraying equipment.

[0003] The prior art utility model patent with publication number CN 216322748 U discloses a waterproof coating spraying device with a quick-disassembly structure for the spray head. Through an inner tube, movable joint, side groove, locking rod, protrusion and annular groove plate, the locking rod on both sides of the spray head can abut against the protrusion, and the protrusion can lock the annular groove plate. In this way, the spray head is locked in the outer shell. At the same time, the spray head is rotated, and then the locking rod and the protrusion are misaligned and moved out from the inside of the side groove. This solves the problem of complicated disassembly steps for the spray head.

[0004] However, it requires complete disassembly and replacement of the nozzle. Spare and replacement nozzles need to be handled separately, requiring workers to carry and store them during construction. In actual use, it is not convenient and is easy to lose. The nozzle clamping is also not secure enough and is prone to loosening under paint pressure, which may lead to the risk of the nozzle falling off. Therefore, we need to upgrade and modify the existing technology to overcome the existing problems and shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a waterproof coating spraying device with a quick-release structure for the spray nozzle, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] Design a waterproof coating spraying device with a quick-release nozzle structure, including a device body, which contains a spray gun, a nozzle assembly, a connecting assembly, and a feeding assembly. The spray gun has a handle at its lower end and an external connecting seat at its front end. The external connecting seat has an external thread on its outer wall and a sealing ring at its outer end. The nozzle assembly is provided in three sets, and the three sets of nozzle assemblies are fixed to the connecting assembly and connected to the external connecting seat. The top of the spray gun is provided with an upper connecting seat, and the feeding assembly is installed on the upper connecting seat.

[0008] The connecting assembly includes a mounting base and a conical sleeve. The mounting base has a movable groove and a limiting shaft is movably mounted in the movable groove. The outer end of the limiting shaft is provided with a connecting plate and the outer ring of the connecting plate is provided with three sets of connecting rods. The outer end of the connecting rod is provided with a fixing ring and the two sides of the fixing ring are provided with inner inserts.

[0009] Furthermore, the fixing ring and the inner tube are sleeved and fixed at the tail of the nozzle component, the inner side of the inner tube is inserted into the outer connecting seat, the inner side of the conical sleeve is provided with a threaded sleeve, and the threaded sleeve is sleeved on the outside of the fixing ring and screwed to the external thread.

[0010] Furthermore, the inner side of the fixing ring is attached to the sealing ring, the outer side of the fixing ring is attached to the conical sleeve, and the outer end of the conical sleeve is provided with a sealing sleeve, which is fitted onto the nozzle component.

[0011] Furthermore, the feeding assembly includes a feeding barrel, the bottom of which is provided with an upper connector and the top with a support frame, and the center of the feeding barrel is provided with a rotating stirring shaft with several sets of stirring blades.

[0012] Furthermore, the upper connector is screwed into the upper connecting seat, and a knob is provided at the top of the stirring shaft through the feeding barrel, with a sealing gasket at the connection between the knob and the feeding barrel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model features a device with a connecting assembly, mounting base, movable groove, limiting shaft, connecting plate, connecting rod, fixing ring, inner tube, conical sleeve, threaded sleeve, and sealing sleeve. The limiting shaft and movable groove allow for the forward and backward extension and rotation of three sets of nozzle components. The fixing ring and inner tube connect the nozzle components between the outer connecting base and the conical sleeve. The threaded sleeve secures the conical sleeve to the outside of the outer connecting base. This design enables quick replacement of the nozzle components, facilitating rapid rotation and switching between the three sets of nozzle components, and allowing for easy assembly and disassembly. It adapts to a wider range of usage needs and environments, eliminating the need for separate handling of spare nozzle components and improving the device's convenience.

[0015] 2. This utility model is equipped with a feeding component, a feeding bucket, an upper connector, a support frame, a stirring shaft, stirring blades, a knob, and a sealing gasket. The stirring shaft is rotated by the knob, which drives the stirring blades to rotate and stir the spraying liquid. This allows for convenient stirring of the spraying liquid, prevents sedimentation in the feeding bucket, and prevents the spraying liquid from clogging the spray gun, thus improving the practicality of the device.

[0016] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a waterproof coating spraying device with a quick-release nozzle according to the present invention;

[0019] Figure 2 This is a schematic diagram of the disassembly structure of a waterproof coating spraying device with a quick-disassembly structure for a nozzle, according to the present invention.

[0020] Figure 3 This is an exploded view of the connection components of a waterproof coating spraying device with a quick-release nozzle according to the present invention;

[0021] Figure 4 This is an exploded view of the feeding component of a waterproof coating spraying device with a quick-release structure for a nozzle, according to the present invention.

[0022] In the diagram: 1. Device body; 2. Handle; 3. Spray gun; 31. Upper connecting seat; 4. External connecting seat; 41. External thread; 42. Sealing ring; 5. Spray nozzle; 6. Connecting assembly; 61. Mounting seat; 62. Movable groove; 63. Limiting shaft; 64. Connecting plate; 65. Connecting rod; 66. Fixing ring; 67. Inner tube; 68. Conical sleeve; 69. Threaded sleeve; 610. Sealing sleeve; 7. Discharge assembly; 71. Discharge bucket; 72. Upper connector; 73. Support frame; 74. Stirring shaft; 75. Stirring blade; 76. Knob; 77. Sealing gasket. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figure 1As shown in Figure 4, this embodiment provides a waterproof coating spraying device with a quick-release nozzle structure, including a device body 1. The device body 1 includes a spray gun 3, a nozzle component 5, a connecting component 6, and a feeding component 7. The spray gun 3 has a handle 2 at its lower end and an external connecting seat 4 at its front end. The outer wall of the external connecting seat 4 has an external thread 41 and a sealing ring 42 at its outer end. The nozzle component 5 is provided in three sets. The three sets of nozzle components 5 are fixed to the connecting component 6 and connected to the external connecting seat 4. The top of the spray gun 3 is provided with an upper connecting seat 31, and the feeding component 7 is installed on the upper connecting seat 31.

[0025] Preferably, the connecting assembly 6 includes a mounting base 61 and a tapered sleeve 68. The mounting base 61 has a movable groove 62 and a limiting shaft 63 is movably mounted in the movable groove 62. The outer end of the limiting shaft 63 is provided with a connecting plate 64 and the outer ring of the connecting plate 64 is provided with three sets of connecting rods 65. The outer end of the connecting rods 65 is provided with a fixing ring 66 and inner tubes 67 are provided on both sides of the fixing ring 66. The fixing ring 66 and the inner tubes 67 are fitted and fixed to the tail of the nozzle 5. The inner side of the inner tubes 67 is inserted into the outer connecting base 4. The inner side of the tapered sleeve 68 is provided with a threaded sleeve 69. The threaded sleeve 69 is fitted on the outer side of the fixing ring 66 and screwed to the external thread 41. The inner side of the fixing ring 66 is attached to the sealing ring 42, and the outer side of the fixing ring 66 is attached to the tapered sleeve 68. The outer end of the tapered sleeve 68 is provided with a sealing sleeve 610 and the sealing sleeve 610 is fitted on the nozzle 5.

[0026] The three sets of nozzle components 5 are stretched and rotated back and forth by the limiting shaft 63 and the movable groove 62. The nozzle components 5 are connected between the outer connecting seat 4 and the conical sleeve 68 by the fixing ring 66 and the inner insertion tube 67. The conical sleeve 68 is fixed to the outside of the outer connecting seat 4 by the external thread 41 and the threaded sleeve 69, so that the nozzle components 5 are clamped and fixed in the middle. This enables quick replacement of the nozzle components 5, facilitates quick rotation and switching of the three sets of nozzle components 5 and quick disassembly and assembly, adapts to more usage needs and environments, eliminates the need to separately pick up and put away spare nozzle components 5, and makes the operation simple and flexible, improving the convenience of the device.

[0027] Preferably, the feeding assembly 7 includes a feeding barrel 71, the bottom of the feeding barrel 71 is provided with an upper connector 72 and the top is provided with a support frame 73, the center of the feeding barrel 71 is provided with a rotating stirring shaft 74 and a number of stirring blades 75 are provided on the stirring shaft 74, the upper connector 72 is screwed into the upper connecting seat 31, the top of the stirring shaft 74 passes through the feeding barrel 71 and is provided with a knob 76, and a sealing gasket 77 is provided at the connection between the knob 76 and the feeding barrel 71;

[0028] The feeding tank 71 can be disassembled and assembled through the upper connector 72. The stirring shaft 74 is rotated by the knob 76. The stirring shaft 74 drives the stirring blade 75 to rotate and stir the spraying liquid. This allows for convenient stirring of the spraying liquid, prevents sedimentation in the feeding tank 71, and prevents the spraying liquid from clogging the spray gun 3, thus improving the practicality of the device.

[0029] The working principle and operation process of this utility model are as follows: First, the feeding bucket 71 can be installed on the upper connecting seat 31 via the upper connector 72. Then, the connecting plate 64 and connecting rod 65 are rotated by the limiting shaft 63, causing the three sets of nozzle components 5 to rotate accordingly. A suitable nozzle component 5 is selected and inserted into the outer connecting seat 4 through the inner insertion tube 67 on one side, so that the inner side of the fixing ring 66 is fitted against the outer side of the sealing ring 42. At this time, the conical sleeve 68 is fitted from the outside of the nozzle component 5 and placed on the outer inner insertion tube 67. Then rotate the threaded sleeve 69 and screw it onto the external thread 41, so that the sealing sleeve 610 fits against the outside of the nozzle 5. At this time, you can hold the spray gun 3 with the handle 2 to carry out the spraying operation. During the spraying process, you can turn the knob 76 by hand to control the rotation of the stirring shaft 74. The stirring shaft 74 drives the stirring blade 75 to rotate and stir the spray liquid to prevent the spray liquid from settling. When it is necessary to replace the nozzle 5, remove the conical sleeve 68 and rotate it to replace the nozzle 5.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

Claims

1. A waterproof coating spraying device with a quick-release nozzle, characterized in that: The device includes a main body (1), which contains a spray gun (3), a nozzle (5), a connecting assembly (6), and a feeding assembly (7). The spray gun (3) has a handle (2) at its lower end and an external connecting seat (4) at its front end. The external connecting seat (4) has an external thread (41) on its outer wall and a sealing ring (42) at its outer end. The nozzle (5) is provided in three sets. The three sets of nozzles (5) are fixed to the connecting assembly (6) and connected to the external connecting seat (4). The top of the spray gun (3) is provided with an upper connecting seat (31), and the feeding assembly (7) is installed on the upper connecting seat (31). The connecting assembly (6) includes a mounting base (61) and a conical sleeve (68). The mounting base (61) has a movable groove (62) and a limiting shaft (63) is movably arranged in the movable groove (62). The limiting shaft (63) has a connecting plate (64) at its outer end and three sets of connecting rods (65) on its outer ring. The connecting rods (65) have a fixing ring (66) at their outer ends and inner tubes (67) on both sides of the fixing ring (66).

2. A waterproof coating spraying device with a quick-release nozzle structure according to claim 1, characterized in that: The fixing ring (66) and the inner tube (67) are fitted and fixed at the tail of the nozzle (5). The inner side of the inner tube (67) is inserted into the outer connecting seat (4). The inner side of the tapered sleeve (68) is provided with a threaded sleeve (69). The threaded sleeve (69) is fitted on the outside of the fixing ring (66) and screwed to the external thread (41).

3. A waterproof coating spraying device with a quick-release nozzle structure according to claim 2, characterized in that: The inner side of the fixing ring (66) is attached to the sealing ring (42), and the outer side of the fixing ring (66) is attached to the conical sleeve (68). The outer end of the conical sleeve (68) is provided with a sealing sleeve (610) and the sealing sleeve (610) is fitted on the nozzle component (5).

4. A waterproof coating spraying device with a quick-release nozzle structure according to claim 1, characterized in that: The feeding assembly (7) includes a feeding barrel (71), the feeding barrel (71) has an upper connector (72) at the bottom and a support frame (73) at the top, and a rotating stirring shaft (74) is provided in the center of the feeding barrel (71), and several sets of stirring blades (75) are provided on the stirring shaft (74).

5. A waterproof coating spraying device with a quick-release nozzle structure according to claim 4, characterized in that: The upper connector (72) is screwed into the upper connecting seat (31). The top of the stirring shaft (74) passes through the feeding bucket (71) and is provided with a knob (76). A sealing gasket (77) is provided at the connection between the knob (76) and the feeding bucket (71).