Angle adjustable spray gun

Abstract

The utility model discloses an angle adjustable spray gun, including gun body, spray head and thumb switch etc, mainly is with the gun body is set as the handle and the water outlet head, and is equipped with the first connecting disc in the handle top, is equipped with the second connecting disc in the water outlet head rear, and the first connecting disc and the second connecting disc are coaxial heart rotating connection through the valve core shaft of thumb switch, again is equipped with the water inlet in the first connecting disc, is equipped with the water outlet in the second connecting disc, in this way, when the water outlet head is rotated to any position with the fixed angle relative to the handle, can through the trigger drive valve core shaft gyration, to this to control the water flow on-off between the water inlet and the water outlet, therefore, this with the gun body is set as the handle and the water outlet head of relatively rotatable, makes user not need to change wrist attitude to adjust the water angle, overcomes the defect of the holding comfort of the existing spray gun because of angle fixed and leads to the poor, and in the adjustment process, the control of the water flow of thumb switch is also not affected, thereby fundamentally improves the use comfort of user.

Description

Technical Field

[0001] This utility model relates to a spray gun, and more particularly to an angle-adjustable spray gun. Background Technology

[0002] Existing spray gun structures mainly consist of a gun body, a nozzle, and a thumb switch. The gun body is typically the grip for the user; the nozzle sprays water in various patterns; and the thumb switch includes a valve spindle and a trigger that drives the spindle to rotate around its axis, controlling the water flow by pulling the trigger. However, most spray guns on the market currently use a fixed-angle "7"-shaped integrated structure, meaning the angle between the grip and the water outlet is constant. This design has a significant drawback: in actual use, when users need to water areas at different distances, they cannot adjust the gun body itself to adapt the angle; they must rely on changing the posture of their wrist and even their entire arm. For example, watering distant areas requires a significant upward tilt of the wrist, while watering nearby areas requires a downward tilt. Maintaining this unnatural wrist posture for extended periods easily leads to hand and wrist fatigue, severely impacting user comfort. Therefore, although the basic functions of spray guns are mature, how to fundamentally solve the problem of grip fatigue caused by fixed angles through structural design remains a technical challenge that needs to be improved in this field. Utility Model Content

[0003] The technical problem this invention aims to solve is overcoming the drawback of existing spray guns, which suffer from poor grip comfort due to their fixed angle. To address this issue, this invention provides an angle-adjustable spray gun, which features a handle and nozzle that can rotate relative to each other. This allows the user to adjust the spray angle without changing their wrist posture, and the thumb switch's control over the water flow remains unaffected during adjustment. This fundamentally improves user comfort.

[0004] The technical problem of this utility model is solved by the following technical solution: An angle-adjustable spray gun includes a gun body, a nozzle, and a thumb switch. The thumb switch includes a valve spindle and a trigger that drives the valve spindle to rotate about its axis. The gun body includes a handle and a nozzle. A first connecting plate is provided at the top of the handle, and a second connecting plate is provided at the rear of the nozzle. The first and second connecting plates are coaxially rotatably connected via the valve spindle. The first connecting plate has a water inlet communicating with the handle, and the second connecting plate has a water outlet communicating with the nozzle. The valve spindle is configured such that, at any position where the nozzle rotates at a fixed angle relative to the handle, the rotation of the valve spindle driven by the trigger controls the flow of water between the water inlet and the water outlet.

[0005] The inlet is equipped with a water-stopping gasket, which has a water-passing hole that connects to the handle.

[0006] The valve core shaft has an axial water flow channel inside, and the two ends of the valve core shaft are respectively provided with an inlet hole and an outlet groove that connect to the water flow channel; the trigger drives the valve core shaft to rotate, thereby connecting the inlet hole and the through hole, and the water flow in the handle enters the outlet head in sequence through the through hole, the inlet hole, the water flow channel, the outlet groove and the outlet.

[0007] The top of the handle is provided with a first arc surface that engages with the outer circumferential surface of the second connecting plate to achieve relative rotation, and the rear of the water outlet is provided with a second arc surface that engages with the outer circumferential surface of the first connecting plate to achieve relative rotation.

[0008] The first arc surface and the outer peripheral surface of the second connecting plate are respectively provided with intermeshing inner arc teeth and outer arc teeth, so that the water outlet head is locked relative to the handle at multiple predetermined angle positions.

[0009] The first connecting plate is provided with a first shaft hole through its axis, and the second connecting plate is provided with a second shaft hole through its axis. The first shaft hole and the second shaft hole are coaxially aligned and are used for the installation of the valve core shaft. The water inlet is opened on the hole wall of the first shaft hole, and the water outlet is opened on the hole wall of the second shaft hole.

[0010] On the relative contact surfaces of the first connecting plate and the second connecting plate, one of them is provided with an arc-shaped rib, and the other is provided with an arc-shaped groove adapted to the arc-shaped rib; the arc-shaped rib slides in the arc-shaped groove, and the two ends of the arc-shaped groove form a stop part to limit the maximum rotation angle of the water outlet relative to the handle.

[0011] The valve spindle has two ends that extend out of the first shaft hole and the second shaft hole, respectively, and form a first connector and a second connector. The trigger is a U-shaped trigger located outside the handle. The two ends of the U-shaped trigger are fixedly connected to the first connector and the second connector, respectively. The trigger is moved back and forth, and the valve spindle is driven to rotate through the first connector and the second connector.

[0012] The bottom of the handle is provided with a water inlet connector, which is connected to the water passage hole of the water-stop pad through a water inlet pipe inside the handle; a filter screen assembly is provided at the connection between the water inlet pipe and the water inlet connector.

[0013] The nozzle includes a nozzle installed at the front end of the water outlet and an adjusting sleeve rotatably fitted over the nozzle; a positioning bead for positioning the rotation gear is provided between the adjusting sleeve and the nozzle.

[0014] Compared with existing technologies, this utility model mainly designs the gun body as a handle and a water outlet, with a first connecting plate at the top of the handle and a second connecting plate at the rear of the water outlet. The first and second connecting plates are coaxially rotatably connected by a valve core shaft. The first connecting plate has a water inlet communicating with the handle, and the second connecting plate has a water outlet communicating with the water outlet. In this way, even if the water outlet is rotated to any position relative to the handle at a fixed angle, the valve core shaft can be rotated by the trigger to control the water flow between the water inlet and the water outlet. Therefore, by designing the gun body as a handle and water outlet that can rotate relative to each other, the user can adjust the water spray angle without changing the wrist posture, overcoming the defect of poor grip comfort caused by the fixed angle of existing spray guns. Furthermore, the thumb switch control of the water flow is not affected during the adjustment process, thus fundamentally improving the user's comfort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model in the water-flow state (the spray gun is at its minimum operating angle).

[0016] Figure 2 for Figure 1 Sectional view A-A.

[0017] Figure 3 This is a schematic diagram of the structure of this utility model in the water-cut-off state (the spray gun is at its minimum operating angle).

[0018] Figure 4 for Figure 3 B-B sectional view.

[0019] Figure 5 This is a schematic diagram of the structure of this utility model in the water-flow state (the spray gun is at its maximum operating angle).

[0020] Figure 6 for Figure 5 C-C section view.

[0021] Figure 7 This is a schematic diagram of the structure of this utility model in the water-cut-off state (the spray gun is at its maximum operating angle).

[0022] Figure 8 for Figure 7 D-D sectional view.

[0023] Figure 9 This is an exploded perspective view of the present invention.

[0024] Figure 10 This is a schematic diagram of the handle structure.

[0025] Figure 11 This is a schematic diagram of the water outlet head.

[0026] Figure 12 is a cross-sectional view of the valve spindle.

[0027] Figure 13 This is a schematic diagram of the structure of a water-stopping gasket. Detailed Implementation

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] like Figures 1-13 As shown, 1. Gun body, 11. Grip, 111. First connecting plate, 112. First arc surface, 113. First shaft hole, 114. Water inlet, 115. Outer arc tooth, 116. Arc rib, 12. Water outlet, 121. Second connecting plate, 122. Second arc surface, 123. Second shaft hole, 124. Water outlet, 125. Inner arc tooth, 126. Arc groove, 2. Nozzle, 21. Nozzle, 22. Adjusting sleeve, 23. Positioning bead, 24. Sealing ring, 3. Thumb switch, 31. Valve spindle, 311. Water flow channel, 312. Water inlet hole, 313. Water outlet groove, 32. Trigger, 33. First connector, 34. Second connector, 4. Water inlet connector, 5. Water stop gasket, 51. Water passage hole, 6. Water inlet pipe, 7. Filter screen assembly. The same labels in each figure represent the same parts.

[0030] An angle-adjustable spray gun, such as Figures 1-9 As shown, this is a water spraying device suitable for watering gardens or rinsing dirty items. Its structure includes a gun body 1, a nozzle 2, and a thumb switch 3.

[0031] The gun body 1 includes a grip 11 and a water outlet 12. The top of the grip is provided with a first connecting plate 111 and a first arc surface 112. The rear of the water outlet 12 is provided with a second connecting plate 121 and a second arc surface 122. The first connecting plate 111 and the second connecting plate 121 are discs with the same diameter, and the first arc surface 112 and the second arc surface 122 are arc surfaces with the same arc diameter. Therefore, the outer peripheral surface of the first connecting plate 111 at the top of the grip 11 and the second arc surface 122 at the rear of the water outlet 12, and the outer peripheral surface of the second connecting plate 121 at the rear of the water outlet 12 and the first arc surface 112 at the top of the grip 1 can respectively form corresponding mating contacts to achieve relative rotation.

[0032] The first connecting plate 111 is provided with a first shaft hole 113 through its axis, and the second connecting plate 121 is provided with a second shaft hole 123 through its axis. After the first shaft hole 113 and the second shaft hole 123 are aligned coaxially, the valve core shaft 31 of the thumb switch 3 can be passed through. That is, the first connecting plate 111 and the second connecting plate 121 are connected coaxially by the valve core shaft 31 installed in the two shaft holes, so that the water head 12 can rotate relative to the handle 11.

[0033] Meanwhile, on the relative contact surfaces of the first connecting plate 111 and the second connecting plate 121, one is provided with an arc-shaped rib 116, and the other is provided with an arc-shaped groove 126 adapted to the arc-shaped rib. The arc-shaped rib 116 is centered on the first shaft hole 113, and the arc-shaped groove 126 is centered on the second shaft hole 123. When the arc-shaped rib 116 slides in the arc-shaped groove 126, the two ends of the arc-shaped groove will form a stop, so that the arc-shaped rib 116 can only be constrained to rotate within a certain angle range of the arc-shaped groove 126, thereby limiting the maximum rotation angle of the water outlet head 12 relative to the handle 11.

[0034] The first connecting plate 111, that is, the wall of the first shaft hole 113, is provided with a water inlet 114 that communicates with the handle 11. Specifically, it can be as follows: Figure 2 As shown, the inlet 114 is also provided with a fixed water-stop gasket 5, and the water-stop gasket is provided with a water passage hole 51 that connects to the handle 11. The top surface of the water-stop gasket 5 also needs to be designed as a top arc surface that matches the outer circumferential surface of the valve core shaft 31. The second connecting plate 121, that is, the hole wall of the second shaft hole 123, is provided with an outlet 124 that connects to the outlet head 12.

[0035] The thumb switch 3 includes a valve spindle 31 and a trigger 32. The valve spindle 31 extends from the first shaft hole 113 and the second shaft hole 123 at both ends, forming a disc-shaped first connector 33 and a second connector 34. In this embodiment, for example… Figure 12 As shown, the first connector 33 can be integrally formed with one end of the valve spindle, and the second connector 34 can be set as a separate component and installed on the other end of the valve spindle by plugging or snapping. The purpose of this design is to facilitate the disassembly and assembly of the valve spindle 31.

[0036] The trigger 32 is a U-shaped trigger mounted outside the grip 11. The two ends of the U-shaped trigger are fixedly connected to the first connector 33 and the second connector 34, respectively. In this embodiment, for example… Figure 9 As shown, the outer end faces of the first connector 33 and the second connector 34 are respectively provided with mounting grooves, and the two ends of the U-shaped trigger are inserted into the mounting grooves of the two connectors for fixation. Therefore, by operating the trigger 32 to move it back and forth, the valve core shaft 31 can be driven to rotate around its axis by the first connector 33 and the second connector 34.

[0037] The valve spindle 31 has an axially oriented water flow channel 311 inside. Both ends of the valve spindle 31 are respectively provided with an inlet hole 312 and an outlet groove 313 that connect to the water flow channel. Typically, the inlet hole 312 is located on the side wall of one end of the valve spindle within the first shaft hole 113 and forms a radial connection with the water flow channel 311. The outlet groove 313 is located on the side wall of the other end of the valve spindle within the second shaft hole 123 and also forms a radial connection with the water flow channel 311. Thus, when the trigger 32 drives the valve spindle 31 to rotate, causing the water inlet 312 to connect with the water passage 51 of the water-stopping gasket 5, the water flowing into the handle 11 from the outside will sequentially pass through the water passage 51, the water inlet 312, the water flow channel 311, the water outlet groove 313 and the water outlet 124 into the water outlet head 12; when the trigger 32 drives the valve spindle 31 to rotate, causing the water inlet 312 to be misaligned with the water passage 51 of the water-stopping gasket 5, the water flow will be shut off.

[0038] Of course, the water outlet groove 313 is usually designed to be in constant communication with the water outlet 124. For example, the water outlet groove 313 can be designed to form a radially encircling annular groove along the outer circumference of the valve core shaft 31. Therefore, when the rotation of the valve core shaft 31 drives the water inlet hole 312 to form a direct connection with the water passage hole 51, when the water outlet head 12 is rotated relative to the handle 11, it can also be ensured that the water outlet groove 313 and the water outlet 124 are always in communication, thereby avoiding affecting the normal spraying and irrigation of the water gun.

[0039] Therefore, the valve spindle 31 can be configured such that, at any position where the outlet head 12 rotates at a certain angle relative to the handle 11, the rotation of the valve spindle 31 driven by the trigger 32 can control the flow of water between the inlet 114 and the outlet 124.

[0040] In addition, to prevent the adjustment of the thumb switch 3 from affecting the change of the operating angle of the water outlet 12, that is, to avoid the abnormal rotation of the water outlet 12 relative to the handle 11 when the trigger 32 is pulled, inner arc teeth 125 and outer arc teeth 115 that mesh with each other can be provided between the first arc surface 112 and the outer peripheral surface of the second connecting plate 121, or between the second arc surface 122 and the outer peripheral surface of the first connecting plate 111, so that the water outlet 12 can be locked relative to the handle 11 at multiple predetermined angle positions.

[0041] The handle 11 is provided with a water inlet connector 4 at the bottom to facilitate the access of external water flow. The water inlet connector is connected to the water passage hole 51 of the water-stop pad 5 through the water inlet pipe 6 inside the handle 11. A filter screen assembly 7 can be provided at the connection between the water inlet pipe 6 and the water inlet connector 4 to form water inlet filtration.

[0042] The nozzle 2 includes a nozzle 21 installed at the front end of the water outlet 12, and an adjusting sleeve 22 rotatably sleeved outside the nozzle. The adjusting sleeve and the nozzle are also provided with a positioning bead 23 for positioning the rotation gear, and a sealing ring 24 to form a sealed water passage.

[0043] This invention sets the gun body 1 as a handle 11 and a water outlet 12 that can rotate relative to each other, so that the user can adjust the water spray angle without changing the wrist posture during actual use. This overcomes the defect of poor grip comfort caused by the fixed angle of the existing spray gun. In addition, the thumb switch 3 does not affect the control of the water flow during the adjustment process, thereby fundamentally improving the user's comfort.

[0044] The basic principles and main features of this utility model have been described above. Those skilled in the art should understand that this utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An angle-adjustable spray gun, comprising a gun body (1), a nozzle (2), and a thumb switch (3), said thumb switch (3) comprising a valve spindle (31) and a trigger (32) for driving the valve spindle to rotate about its axis, characterized in that, The gun body (1) includes a handle (11) and a water outlet (12). The top of the handle (11) is provided with a first connecting plate (111), and the rear of the water outlet (12) is provided with a second connecting plate (121). The first connecting plate (111) and the second connecting plate (121) are coaxially rotatably connected by a valve core shaft (31). The first connecting plate (111) is provided with a water inlet (114) that connects to the handle (11), and the second connecting plate (121) is provided with a water outlet (124) that connects to the water outlet (12). The valve spindle (31) is configured to control the flow of water between the inlet (114) and the outlet (124) by driving the rotation of the valve spindle (31) via the trigger (32) at any position where the outlet head (12) rotates at a fixed angle relative to the handle (11).

2. The angle-adjustable spray gun according to claim 1, characterized in that, The inlet (114) is provided with a water-stopping gasket (5), which has a water-passing hole (51) that connects to the handle (11).

3. An angle-adjustable spray gun according to claim 2, characterized in that, The valve spindle (31) has an axial water flow channel (311) inside. The two ends of the valve spindle (31) are respectively provided with an inlet hole (312) and an outlet groove (313) that connect to the water flow channel (311). The trigger (32) drives the valve spindle (31) to rotate, thereby connecting the inlet hole (312) with the water passage hole (51). The water flow in the handle (11) enters the outlet head (12) in sequence through the water passage hole (51), the inlet hole (312), the water flow channel (311), the outlet groove (313) and the outlet (124).

4. An angle-adjustable spray gun according to claim 1, characterized in that, The top of the handle (11) is provided with a first arc surface (112) that engages with the outer peripheral surface of the second connecting plate (121) to achieve relative rotation, and the rear of the water outlet (12) is provided with a second arc surface (122) that engages with the outer peripheral surface of the first connecting plate (111) to achieve relative rotation.

5. An angle-adjustable spray gun according to claim 4, characterized in that, The first arc surface (112) and the outer peripheral surface of the second connecting plate (121) are respectively provided with inner arc teeth (125) and outer arc teeth (115) that mesh with each other, so that the water outlet (12) is locked relative to the handle (11) at multiple predetermined angle positions.

6. An angle-adjustable spray gun according to claim 1, characterized in that, The first connecting plate (111) is provided with a first shaft hole (113) through its axis, and the second connecting plate (121) is provided with a second shaft hole (123) through its axis. The first shaft hole (113) and the second shaft hole (123) are coaxially aligned and are used for the installation of the valve core shaft (31). The water inlet (114) is opened on the hole wall of the first shaft hole (113), and the water outlet (124) is opened on the hole wall of the second shaft hole (123).

7. An angle-adjustable spray gun according to claim 1, characterized in that, On the relative contact surfaces of the first connecting plate (111) and the second connecting plate (121), one of them is provided with an arc-shaped rib (116), and the other is provided with an arc-shaped groove (126) adapted to the arc-shaped rib. The arc-shaped rib (116) slides in the arc-shaped groove (126), and the two ends of the arc-shaped groove form a stop to limit the maximum rotation angle of the water outlet (12) relative to the handle (11).

8. An angle-adjustable spray gun according to claim 6, characterized in that, The valve spindle (31) has two ends that extend out of the first shaft hole (113) and the second shaft hole (123) respectively, and forms a first connector (33) and a second connector (34). The trigger (32) is a U-shaped trigger set outside the handle (11). The two ends of the U-shaped trigger are fixedly connected to the first connector (33) and the second connector (34) respectively. The trigger (32) is moved back and forth, and the valve spindle (31) is driven to rotate through the first connector (33) and the second connector (34).

9. An angle-adjustable spray gun according to claim 2, characterized in that, The bottom of the handle (11) is provided with a water inlet connector (4), which is connected to the water passage hole (51) of the water stop gasket (5) through the water inlet pipe (6) inside the handle (11); a filter screen assembly (7) is provided at the connection between the water inlet pipe (6) and the water inlet connector (4).

10. An angle-adjustable spray gun according to claim 1, characterized in that, The nozzle (2) includes a nozzle (21) installed at the front end of the water outlet (12) and an adjusting sleeve (22) rotatably fitted outside the nozzle; a positioning bead (23) for positioning the rotation gear is provided between the adjusting sleeve and the nozzle.

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