A spray gun nozzle

Abstract

This utility model discloses a nozzle for a spray gun, including a handle and a water outlet. The water outlet has several water outlet holes. The handle has a water inlet, a water outlet, and a water flow channel connecting the water inlet and the water outlet. The water outlet communicates with the water outlet holes. The handle also has a transverse through-hole through which the water flow channel passes. A regulating valve is installed at the transverse through-hole. The regulating valve includes a valve core and a connecting rod installed outside the handle. The valve core includes a fixed plate, an insertion block, and two baffles connecting the fixed plate and the insertion block, forming two flow holes between the two baffles. The fixed plate is located outside the transverse through-hole, and the insertion block and baffles are inserted into the transverse through-hole. One end of the connecting rod is connected to a retaining ring, which is engaged with the fixed plate. The other end of the connecting rod is connected to a cover plate, which is fixed to the insertion block with screws. The connecting rod drives the valve core to rotate through the cover plate and the retaining ring, thereby adjusting the relative position of the two flow holes and the water flow channel. The nozzle has low production cost and high yield.

Description

Technical Field

[0001] This utility model relates to a nozzle for a spray gun, and more particularly to a nozzle for a garden spray gun. Background Technology

[0002] Modern garden spray guns often have a regulating valve installed inside the nozzle for easier adjustment of the water flow. The existing nozzle includes a handle and a water outlet. The water outlet is mounted on top of the handle and has several water outlet holes. The bottom and top of the handle have inlets and outlets respectively, and the outlets communicate with the water outlet holes. A water flow channel is located inside the handle, communicating with the inlet and outlet. The handle also has a transverse through-hole that passes through the water flow channel. The regulating valve includes a valve core installed in the transverse through-hole, and a valve stem and cover plate installed outside the handle. The valve stem is a horizontal rod, with both ends connected to retaining rings. The retaining rings have grooves on their inner rings, and the two retaining rings are located on either side of the transverse through-hole. The valve core has an insertion end and a fixing end, with the fixing end having a diameter larger than the transverse through-hole. The fixed end and the outer edge of the cover plate are both equipped with corresponding slots on the locking block. The fixed end and the retaining ring are fixed together with the slot through the locking block. The cover plate is engaged with another retaining ring. The cover plate abuts against the outside of the insertion end. The cover plate and the valve core are fixed together by ultrasonic welding. However, this type of nozzle has the following disadvantages: 1. Since the structures of the two ends of the transverse through hole of the handle are the same and the retaining ring structures of the two ends of the valve stem are the same, it is easy to reverse the valve core, resulting in a high rework rate; 2. During ultrasonic welding, the cover plate, retaining ring and handle are often welded together, causing the regulating valve to fail and the nozzle to have a high repair rate; 3. The cost of ultrasonic welding is high, making the production cost of the nozzle too high. Utility Model Content

[0003] This invention provides a nozzle for a spray gun, which solves the problems of high production cost and low yield of nozzles in the prior art.

[0004] The technical solution of this utility model is implemented as follows:

[0005] The purpose of this utility model is to provide a nozzle for a spray gun, including a handle and a water outlet mounted on the top of the handle. The water outlet has several water outlet holes. The bottom and top of the handle are respectively provided with a water inlet and a water outlet, which communicate with the water outlet holes. A water flow channel is provided inside the handle, communicating with the water inlet and the water outlet. The handle also has a transverse through hole through which the water flow channel passes. A regulating valve is installed at the transverse through hole. The regulating valve is characterized in that: the regulating valve includes a valve core installed inside the transverse through hole and a connecting rod installed outside the handle. The valve core includes a fixed plate, an insertion block, and two baffles connecting the fixed plate and the insertion block. A first flow hole and a second flow hole are formed between the two baffles. The fixed plate is located outside the transverse flow hole. The insertion block and the baffles are inserted into the transverse flow hole. One end of the connecting rod is connected to a retaining ring, which is engaged with the fixed plate. The other end of the connecting rod is connected to a cover plate, which rests against the outside of the insertion block. The cover plate and the insertion block are fixed together by screws. The connecting rod drives the valve core to rotate through the cover plate and the retaining ring, thereby adjusting the relative positions of the first flow hole, the second flow hole, and the water flow channel.

[0006] The aforementioned insertion block has a polygonal limiting block protruding from it. The limiting block has a screw hole at its center. The inner side of the cover plate has a limiting groove corresponding to the limiting block. The limiting groove has an installation through hole corresponding to the screw hole. The limiting block is stuck in the limiting groove. The tail of the screw passes through the installation through hole and extends into the screw hole.

[0007] The cover plate described above has a protrusion in the limiting groove, the mounting through hole is located in the protrusion, and the limiting block has a groove corresponding to the protrusion, with the protrusion being stuck in the groove.

[0008] The handle described above is provided with a hook.

[0009] The aforementioned section has a bend in the middle, the transverse through hole is located at the bend, and the hook is located at the top of the bend.

[0010] Compared with the prior art, this utility model has the following advantages:

[0011] 1. The nozzle of the spray gun includes a handle and a water outlet mounted on the top of the handle. The water outlet has several water outlet holes. The bottom and top of the handle are respectively provided with a water inlet and a water outlet, which communicate with the water outlet holes. A water flow channel is provided inside the handle, which communicates with the water inlet and the water outlet. The handle also has a transverse through hole through which the water flow channel passes. A regulating valve is installed at the transverse through hole. The regulating valve includes a valve core installed inside the transverse through hole and a connecting rod installed outside the handle. The valve core includes a fixed... The system comprises a plate, an insertion block, and two baffles connecting the fixing plate and the insertion block. A first and second flow passage are formed between the two baffles. The fixing plate is located outside the transverse flow passage. The insertion block and baffles are inserted into the transverse flow passage. One end of the connecting rod is connected to a retaining ring, which engages with the fixing plate. The other end of the connecting rod is connected to a cover plate, which rests against the outside of the insertion block. The cover plate and the insertion block are fixed together with screws. The connecting rod, through the cover plate and retaining ring, drives the valve core to rotate, thereby adjusting the relative positions of the first and second flow passages and the water flow channel. The cover plate, retaining ring, and connecting rod are integrally molded, making installation easier and reducing the likelihood of valve core reversal. The cover plate and valve core are fixed with screws, facilitating connection, reducing production costs, and increasing the yield rate of finished products.

[0012] 2. Other advantages of this utility model are described in detail in the embodiments section. Attached Figure Description

[0013] Figure 1 A schematic diagram of the nozzle structure of the spray gun provided in an embodiment of this utility model;

[0014] Figure 2 A schematic diagram of the nozzle from another angle;

[0015] Figure 3 This is a top view of the nozzle;

[0016] Figure 4 for Figure 3 AA cross-sectional view;

[0017] Figure 5 for Figure 3 BB cross-section diagram;

[0018] Figure 6 for Figure 5 Enlarged view of point C;

[0019] Figure 7 This is an exploded view of the nozzle;

[0020] Figure 8 This is a schematic diagram of the connecting rod in the nozzle.

[0021] Figure 9 This is a schematic diagram of the valve core in the nozzle.

[0022] Figure 10This is a structural schematic diagram of the valve core from another angle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figures 1 to 10 As shown, this embodiment provides a nozzle for a garden spray gun, including a handle part 1 and a water outlet part 2 installed on the top of the handle part 1. The water outlet part 2 is provided with several water outlet holes 21. The bottom and top of the handle part 1 are respectively provided with a water inlet 11 and a water outlet 12, and the water outlet 12 communicates with the water outlet holes 21. A water flow channel 10 is provided inside the handle part 1, which communicates with the water inlet 11 and the water outlet 12. The handle part 1 is also provided with a transverse through hole 13, which passes through the water flow channel 10. A regulating valve is installed at the transverse through hole 13. The regulating valve is characterized in that: the regulating valve includes a valve core 31 installed in the transverse through hole 13 and a connecting rod 34 installed outside the handle part 1. The valve core 31 includes a fixing plate 311, an insertion block 312, and a connecting fixing plate. The plate 311 and the insert block 312 have two baffles 313, forming a first flow hole 314 and a second flow hole 315 between them. The fixed plate 311 is located outside the transverse through hole 13. The insert block 312 and the baffles 313 are inserted into the transverse through hole 13. One end of the connecting rod 34 is connected to a retaining ring 32, which is engaged with the fixed plate 311. The other end of the connecting rod 34 is connected to a cover plate 33, which rests against the outside of the insert block 312. The cover plate 33 and the insert block 312 are fixed together by screws 35. The connecting rod 34 drives the valve core 31 to rotate through the retaining ring 32 and the cover plate 33, thereby adjusting the relative position of the first flow hole 314, the second flow hole 315 and the water flow channel 10, and thus adjusting the water flow rate of the nozzle. When the baffle 313 completely blocks the water flow channel 10, the valve closes.

[0025] The nozzle of the spray gun, the cover plate 33, the retaining ring 32 and the connecting rod 34 are integrally formed, which makes the installation more convenient and reduces the possibility of valve core being installed backwards; the cover plate 33 and the valve core 31 are fixed by screws 35, which makes the connection convenient; the nozzle has low production cost and high finished product yield.

[0026] The aforementioned insertion block 312 has a protruding polygonal limiting block 317. The limiting block 317 has a screw hole 318 at its center. The inner side of the cover plate 33 has a limiting groove 331 corresponding to the limiting block 317. The limiting groove 331 has a mounting through hole 332 corresponding to the screw hole 318. The limiting block 317 is engaged within the limiting groove 331. The tail of the screw 35 passes through the mounting through hole 332 and extends into the screw hole 318. The limiting block 317 and the limiting groove 331 enhance the circumferential positioning between the cover plate 33 and the valve core 31, reducing the torque on the screw 35 when the connecting rod 34 is moved, making water flow adjustment more convenient and reliable.

[0027] The cover plate 33 described above has a protrusion 333 in the limiting groove 331, and the mounting through hole 332 is located in the protrusion 333. The limiting block 317 has a groove 319 corresponding to the protrusion 333, and the protrusion 333 is engaged in the groove 319. The protrusion 333 can ensure the stability of the cover plate 33.

[0028] The aforementioned limiting block 317 is quadrilateral.

[0029] The inner side of the aforementioned fixing plate 311 has several protruding locking blocks 316, and the inner ring of the retaining ring 32 has a protruding edge 321. The protruding edge 321 has a locking groove 322 corresponding to the locking blocks 316. The protruding edge 321 is engaged between the fixing plate 311 and the handle part 1, and the locking blocks 316 are engaged in the locking groove 322. The connection between the fixing plate 311 and the retaining ring 32 is more reliable.

[0030] The handle 1 described above is provided with a hook 14. The hook 14 facilitates the storage of the nozzle.

[0031] The aforementioned section has a bent section 15 in the middle, the transverse through hole 13 is located at the bent section 15, and the hook 14 is located at the top of the bent section 15. The handle part 1 has a simple structure and the hook 14 is reasonably arranged.

[0032] The spray gun described in this embodiment has a simple nozzle structure, is easy to manufacture, and has low production cost and high efficiency.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A nozzle for a spray gun, comprising a handle (1) and a water outlet (2) mounted on the top of the handle (1), the water outlet (2) having a plurality of water outlet holes (21), the bottom and top of the handle (1) having a water inlet (11) and a water outlet (12) respectively, the water outlet (12) communicating with the water outlet holes (21), the handle (1) having a water flow channel (10) communicating with the water inlet (11) and the water outlet (12), the handle (1) also having a transverse through hole (13) passing through the water flow channel (10), and a regulating valve installed at the transverse through hole (13), characterized in that: The regulating valve includes a valve core (31) installed in a transverse through hole (13) and a connecting rod (34) installed outside the handle (1). The valve core (31) includes a fixing plate (311), an insertion block (312), and two baffles (313) connecting the fixing plate (311) and the insertion block (312). A first flow hole (314) and a second flow hole (315) are formed between the two baffles (313). The fixing plate (311) is located outside the transverse through hole (13), and the insertion block (312) and the baffles (313) are inserted into the transverse through hole (13). 13) Inside, one end of the connecting rod (34) is connected to a retaining ring (32), which is snapped together with the fixing plate (311). The other end of the connecting rod (34) is connected to a cover plate (33), which abuts against the outside of the insertion block (312). The cover plate (33) and the insertion block (312) are fixed together by screws (35). The connecting rod (34) drives the valve core (31) to rotate through the cover plate (33) and the retaining ring (32), thereby adjusting the relative positions of the first flow hole (314), the second flow hole (315) and the water flow channel (10).

2. A spray tip for a spray gun according to claim 1, wherein: The insertion block (312) has a polygonal limiting block (317) protruding from it. The limiting block (317) has a screw hole (318) at its center. The cover plate (33) has a limiting groove (331) corresponding to the limiting block (317) recessed on its inner side. The limiting groove (331) has an installation through hole (332) corresponding to the screw hole (318) in it. The limiting block (317) is stuck in the limiting groove (331). The tail of the screw (35) passes through the installation through hole (332) and extends into the screw hole (318).

3. A spray tip for a spray gun according to claim 2, wherein: The cover plate (33) has a protrusion (333) in the limiting groove (331), the mounting through hole (332) is located in the protrusion (333), and the limiting block (317) has a groove (319) corresponding to the protrusion (333), and the protrusion (333) is stuck in the groove (319).

4. A spray tip for a spray gun according to claim 3, wherein: The limiting block (317) is quadrilateral.

5. A spray tip for a spray gun according to claim 4, wherein: The inner side of the fixing plate (311) has a number of locking blocks (316) protruding out. The inner ring of the retaining ring (32) has a protruding edge (321) protruding out. The protruding edge (321) is provided with a slot (322) corresponding to the locking block (316). The protruding edge (321) is locked between the fixing plate (311) and the handle part (1). The locking block (316) is locked in the slot (322).

6. A spray tip for a spray gun according to any one of claims 1 to 5, wherein: The handle (1) is provided with a hook (14).

7. A spray tip for a spray gun according to claim 6, wherein: The handle (1) has a bent section (15) in the middle, the transverse through hole (13) is located at the bent section (15), and the hook (14) is located at the top of the bent section (15).

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