A spray gun structure

Abstract

This utility model provides a spray gun structure. The utility model includes a gun cap and a gun head. The gun cap has a water outlet end and a mounting end at its two ends, respectively. The mounting end has a first internal thread section, and the water outlet end has a spray hole. The gun head has a water flow channel and a water outlet hole. An adjusting block is located at the end of the gun head near the water outlet end, and a first sealing ring is installed on the adjusting block. A first external thread section and a second sealing ring are located on the outer wall of the gun head. The first external thread section is threaded to the first internal thread section. A water outlet gap is left between the gun head and the gun cap, located between the first and second sealing rings. It also includes an extension section, integrally formed at the mounting end. The extension section has an anti-accidental contact component that flips outward and covers the space between the extension section and the gun head. This spray gun structure not only has a high water output and stepless adjustment function, but also provides the user with more hand grip space through the gun cap and extension end, reducing the possibility of accidental rotation between the gun head and the gun cap, and significantly improving stability during use.

Description

Technical Field

[0001] This utility model relates to spray guns, and more particularly, to a spray gun structure. Background Technology

[0002] The applicant previously filed a utility model patent application for a nozzle with authorization announcement number CN21699638U. The structure disclosed in that document mainly includes a nozzle cap and a nozzle head. The nozzle cap has a water outlet end and a mounting end at its two ends, respectively. The mounting end has a double-threaded structure. The nozzle head has a water flow channel inside. The end of the nozzle head near the water outlet end has a water outlet hole and an adjusting block. The nozzle head is installed inside the nozzle cap, and a water outlet gap is left between the nozzle head and the nozzle cap. Water passes through the water flow channel, the water outlet hole, and the water outlet gap in sequence, and finally sprays out from the gap between the adjusting block and the water outlet end. In addition, a sealing ring is installed on the adjusting block. The sealing ring can be squeezed between the adjusting block and the water outlet end to seal the nozzle, so that the water flow will not be sprayed out.

[0003] Although the above-mentioned nozzle structure uses a double-thread structure to achieve quick adjustment of the relative position between the nozzle head and the nozzle cap, the length of the entire nozzle cap is limited. In actual use, there is still insufficient space for the hand to hold it. During actual operation, it is easy to accidentally touch the end of the nozzle head, causing the nozzle head and nozzle cap to rotate unexpectedly, resulting in decreased water output stability and poor overall stability. Further improvements are urgently needed. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a spray gun structure that effectively extends the overall length of the gun cap and reduces the possibility of accidental rotation between the gun head and the gun cap, thus significantly improving the stability of use.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: A spray gun structure includes a gun cap and a gun head. The gun cap has a water outlet end and a mounting end at its two ends, respectively. The mounting end has a first internal thread section, and the water outlet end has a water spray hole. The gun head has a water flow channel and a water outlet hole. The end of the gun head near the water outlet end has an adjusting block. A first sealing ring is installed on the adjusting block. The outer wall of the gun head has a first external thread section and a second sealing ring. After the gun head is inserted into the gun cap, the first external thread section is threaded to the first internal thread section. A water outlet gap is left between the gun head and the gun cap. The water outlet gap is located between the first sealing ring and the second sealing ring. The water flow channel, water outlet, water outlet gap, and water spray hole are interconnected. The first sealing ring can seal between the water outlet gap and the water spray hole and block the connection between the two. It also includes an extension section, which is integrally formed on the mounting end. The extension section is provided with an anti-accidental contact component, which is flipped outward and covers the space between the extension section and the gun head.

[0006] Through the above technical solution, an extension end is installed on the mounting end, thereby significantly extending the overall length of the gun cap. In actual use, the gun cap and the extension end provide the user with more hand grip space. In addition, the anti-accidental contact component flips outward and covers the space between the extension section and the gun head. Even if the user's hand slides to the side of the anti-accidental contact component, the outward-flipped anti-accidental contact component can effectively limit the direct contact between the user's hand and the gun head, reducing the possibility of accidental rotation between the gun head and the gun cap, and significantly improving the stability of use.

[0007] Preferably, the extension section is provided with a second internal thread section; The anti-accidental contact component includes an inner cylinder and an outer folding component. The outer cylinder wall of the inner cylinder is provided with a second external thread section. The outer folding component is disposed at the end of the inner cylinder. The inner cylinder is inserted into the extension section. The second external thread section is threadedly connected to the second internal thread section. The outer folding component is turned outward from the inner cylinder. The outer folding component is located between the extension section and the gun head.

[0008] Through the above technical solution, the entire anti-accidental contact component is connected to the second external thread end and the second internal thread end of the inner cylinder, and the anti-accidental contact component has high ease of disassembly and assembly as well as installation stability.

[0009] Preferably, the outward-turned part is disc-shaped, and the gun head passes through both the outward-turned part and the inner cylinder part.

[0010] Through the above technical solution, the outer side wall of the outward-folding part is an arc-shaped side wall, which can provide maximum protection for the user's hand.

[0011] Preferably, the inner wall of the extension section is provided with a smooth section, which is located between the first internal thread section and the second internal thread section, and the second internal thread section is located at the end of the extension section away from the gun cap.

[0012] With the above technical solution, when the gun head is inserted into the gun cap, the first external thread section will first pass through the second internal thread section, and then pass through the smooth section to pass quickly, and finally enter the first internal thread section for thread engagement. The smooth section can effectively save the connection speed between the gun head and the gun cap, and achieve rapid docking.

[0013] Preferably, the inner cylinder extends toward the gun cap side, and the inner cylinder extends to correspond to the smooth section.

[0014] Through the above technical solution, the inner cylinder can provide a certain support for the gun head, thereby improving the support stability between the gun head and the gun cap.

[0015] Preferably, a third sealing ring is provided between the inner cylinder and the gun head.

[0016] Through the above technical solution, a sealing effect is achieved between the inner wall of the inner cylinder and the outer wall of the gun head, which can effectively limit external debris from entering the spray gun through the gap and maintain the smooth and stable threaded connection between the gun head and the gun cap.

[0017] Preferably, a fourth sealing ring is provided between the outward-facing component and the end of the extension section.

[0018] Through the above technical solution, a sealing effect is achieved between the outward-facing part and the end of the extension section, which can effectively limit external debris from entering the spray gun through the gap and maintain the smooth and stable threaded connection between the gun head and the gun cap.

[0019] Preferably, it also includes a connecting sleeve, wherein the end of the gun head away from the adjusting block is the connecting end, the connecting sleeve is sleeved on the outer wall of the connecting end, the connecting sleeve and the connecting end are connected by welding, and the connecting sleeve is provided with connecting threads.

[0020] With the above technical solution, the connecting sleeve and the gun head are processed separately in the actual production process to reduce the processing difficulty. During installation, the anti-accidental contact component can be put into the connecting end of the gun head first, and then the connecting sleeve can be put in and then welded together. The installation is convenient and the connection is stable.

[0021] Preferably, the connecting sleeve is provided with a fifth sealing ring, which seals and covers the joint between the connecting sleeve and the connecting end.

[0022] Through the above technical solution, on the one hand, the fifth sealing ring can improve the sealing performance between the mating parts and the connecting sleeve; on the other hand, the fifth sealing ring can seal the splice seam between the connecting sleeve and the connecting end, which can effectively prevent water from accidentally overflowing from the splice seam. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a cross-sectional structural diagram of an embodiment; Figure 3 for Figure 2 Enlarged view of part A.

[0024] Reference numerals: 1. Gun head; 2. Gun cap; 21. Water outlet end; 22. Mounting end; 3. First internal thread section; 4. Spray hole; 5. Water flow channel; 6. Water outlet hole; 7. Adjusting block; 8. First sealing ring; 9. First external thread section; 10. Second sealing ring; 11. Water outlet gap; 12. Extension section; 13. Second internal thread section; 14. Second external thread section; 15. Anti-accidental contact component; 151. Inner cylinder component; 152. Outward-facing component; 16. Smooth section; 17. Third sealing ring; 18. Fourth sealing ring; 19. Connecting sleeve; 20. Connecting end; 201. Connecting thread; 202. Fifth sealing ring; 23. Joint seam. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-3 The specific embodiments of this utility model will be further described in detail to make the technical solution of this utility model easier to understand and master.

[0026] A spray gun structure includes a gun cap 2 and a gun head 1. The gun cap 2 has a water outlet end 21 and a mounting end 22 at its two ends, respectively. The mounting end 22 has a first internal thread section 3, and the water outlet end 21 has a spray hole 4. The gun head 1 has a water flow channel 5 and a water outlet hole 6. The end of the gun head 1 near the water outlet end 21 has an adjusting block 7, and a first sealing ring 8 is installed on the adjusting block 7. The outer side wall of the gun head 1 has a first external thread section 9 and a second sealing ring 10. After the gun head 1 is inserted into the gun cap 2, the first external thread section 9 is threaded to the first internal thread section 3. A water outlet gap 11 is left between the gun head 1 and the gun cap 2. The water outlet gap 11 is located between the first sealing ring 8 and the second sealing ring 10. The water flow channel 5, the water outlet hole 6, the water outlet gap 11, and the spray hole 4 are interconnected. The first sealing ring 8 can seal the water outlet gap 11 and the spray hole 4 and block the communication between the two.

[0027] The spray gun structure described above not only retains the advantages of the original spray gun, namely high water output, but also achieves stepless adjustment by using a threaded connection and rotation adjustment between the internal gun head 1 and the gun cap 2, and further improves the spray gun structure.

[0028] The further improved structure also includes an extension section 12, which is integrally formed on the mounting end 22. The extension section 12 has a second internal thread section 13.

[0029] An anti-accidental contact component 15 is provided on the extension section 12. The anti-accidental contact component 15 is flipped outward and covers the space between the extension section 12 and the gun head 1. Specifically, the anti-accidental contact component 15 includes an inner cylinder 151 and an outer flip-out component 152. The outer cylinder wall of the inner cylinder 151 is provided with a second external thread section 14. The outer flip-out component 152 is located at the end of the inner cylinder 151. The inner cylinder 151 is inserted into the extension section 12. The second external thread section 14 is threadedly connected to the second internal thread section 13. The outer flip-out component 152 is disc-shaped. The gun head 1 passes through both the outer flip-out component 152 and the inner cylinder 151. The disc-shaped outer flip-out component 152 is flipped outward from the inner cylinder 151 and is located between the extension section 12 and the gun head 1.

[0030] A smooth section 16 is provided on the inner wall of the extension section 12. The smooth section 16 is located between the first internal thread section 3 and the second internal thread section 13. The second internal thread section 13 is located at the end of the extension section 12 away from the gun cap 2. The inner cylinder 151 extends toward the gun cap 2 and corresponds to the smooth section 16.

[0031] To improve the sealing between the anti-accidental contact component 15, the gun head 1, and the gun cap 2, a third sealing ring 17 is provided between the inner cylinder 151 and the gun head 1. A fourth sealing ring 18 is provided between the outward-facing component 152 and the end of the extension section 12.

[0032] In addition, it includes a connecting sleeve 19. The end of the gun head 1 facing away from the adjusting block 7 is the connecting end 20. The connecting sleeve 19 is sleeved on the outer wall of the connecting end 20. The connecting sleeve 19 and the connecting end 20 are connected by welding. The connecting sleeve 19 has a connecting thread 201 inside. The connecting sleeve 19 has a fifth sealing ring 202 inside, which seals and covers the joint 23 between the connecting sleeve 19 and the connecting end 20.

[0033] The following two methods can be used to install the anti-accidental contact component 15: Option 1: The outward-facing part 152 faces the connecting sleeve 19. The anti-accidental contact part 15 is inserted from the adjusting block 7 side of the gun head 1. Then, the adjusting block 7 of the gun head 1 is inserted from the extension section 12 of the gun cap 2. The first external thread section 9 and the first internal thread section 3 are threadedly engaged, and the second external thread section 14 and the second internal thread section 13 are threadedly engaged, thus completing the installation. This installation method requires that the diameter of the external thread of the first external thread section 9 is smaller than the diameter of the inner cylinder of the inner cylinder part 151.

[0034] Form 2: The outward-facing part 152 faces the connecting sleeve 19. The anti-accidental contact part 15 is inserted from the connecting end 20 side of the gun head 1. Then, the connecting sleeve 19 is inserted into the connecting end 20 of the gun head 1. The connecting sleeve 19 and the gun head 1 are welded together. Then, the adjusting block 7 of the gun head 1 is inserted from the extension section 12 of the gun cap 2. The first external thread section 9 and the first internal thread section 3 are threadedly engaged, and the second external thread section 14 and the second internal thread section 13 are threadedly engaged, thus completing the installation. In this installation method, it is not required that the diameter of the external thread of the first external thread section 9 be smaller than the diameter of the inner cylinder of the inner cylinder part 151.

[0035] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A spray gun structure, comprising a gun cap (2) and a gun head (1), wherein the two ends of the gun cap (2) are a water outlet end (21) and a mounting end (22) respectively, the mounting end (22) is provided with a first internal thread section (3), the water outlet end (21) is provided with a spray hole (4), the gun head (1) is provided with a water flow channel (5) and a water outlet hole (6), the end of the gun head (1) near the water outlet end (21) is provided with an adjusting block (7), the adjusting block (7) is provided with a first sealing ring (8), and the outer side wall of the gun head (1) is provided with a first external thread section (9) and a second sealing ring (10); After the gun head (1) is inserted into the gun cap (2), the first external thread section (9) is threaded to the first internal thread section (3). A water outlet gap (11) is left between the gun head (1) and the gun cap (2). The water outlet gap (11) is located between the first sealing ring (8) and the second sealing ring (10). The water flow channel (5), the water outlet (6), the water outlet gap (11), and the water spray hole (4) are interconnected. The first sealing ring (8) can seal between the water outlet gap (11) and the water spray hole (4) and block the connection between the two. Its characteristics are: It also includes an extension section (12), which is integrally formed on the mounting end (22). The extension section (12) is provided with an anti-accidental contact component (15), which is flipped outward and covers the extension section (12) and the gun head (1).

2. The spray gun structure according to claim 1, characterized in that: The extension section (12) is provided with a second internal thread section (13); The anti-accidental contact component (15) includes an inner cylinder (151) and an outer flange (152). The outer cylinder wall of the inner cylinder (151) is provided with a second external thread section (14). The outer flange (152) is located at the end of the inner cylinder (151). The inner cylinder (151) is inserted into the extension section (12). The second external thread section (14) is threaded to the second internal thread section (13). The outer flange (152) is turned outward from the inner cylinder (151). The outer flange (152) is located between the extension section (12) and the gun head (1).

3. The spray gun structure according to claim 2, characterized in that: The outward-turning part (152) is disc-shaped, and the gun head (1) passes through both the outward-turning part (152) and the inner cylinder part (151).

4. The spray gun structure according to claim 2, characterized in that: The inner wall of the extension section (12) is provided with a smooth section (16), which is located between the first internal thread section (3) and the second internal thread section (13). The second internal thread section (13) is located at the end of the extension section (12) away from the gun cap (2).

5. The spray gun structure according to claim 4, characterized in that: The inner cylinder (151) extends toward the gun cap (2) and the inner cylinder (151) extends to the smooth section (16).

6. The spray gun structure according to claim 5, characterized in that: A third sealing ring (17) is provided between the inner cylinder (151) and the gun head (1).

7. A spray gun structure according to any one of claims 2-6, characterized in that: A fourth sealing ring (18) is provided between the outward-facing part (152) and the end of the extension section (12).

8. A spray gun structure according to any one of claims 2-6, characterized in that: It also includes a connecting sleeve (19), the end of the gun head (1) away from the adjusting block (7) is the connecting end (20), the connecting sleeve (19) is sleeved on the outer wall of the connecting end (20), the connecting sleeve (19) and the connecting end (20) are connected by welding, and the connecting sleeve (19) is provided with a connecting thread (201).

9. A spray gun structure according to claim 8, characterized in that: The connecting sleeve (19) is provided with a fifth sealing ring (202), which seals and covers the splice seam (23) between the connecting sleeve (19) and the connecting end (20).

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