Spray gun capable of adjusting flow in stepless mode

Abstract

The utility model provides a spray gun capable of infinitely adjusting flow, which relates to the technical field of sanitary products and comprises a body, an adjusting shaft and a driving structure, the body is provided with a water inlet runner, a water outlet runner and a moving cavity, and the adjusting shaft is sleeved in the moving cavity and is driven by the driving structure to move along the axial direction; wherein a water inlet communicated with the water inlet runner and a water outlet channel communicated with the water outlet runner are formed in the side wall of the moving cavity, a water passing runner is arranged in the axial direction of the adjusting shaft in a penetrating mode, a water outlet in the same extending direction as the water inlet is formed in the side wall of the water passing runner, and when the adjusting shaft moves, the water inlet is communicated with the water outlet runner. The communicating area of the water inlet and the water passing channel and the communicating area of the water outlet and the water outlet channel are changed equivalently, so that the two ends of the adjusting shaft are stressed in a balanced mode. Therefore, the problems of non-uniform adjusting force and inaccurate adjustment caused by unbalanced pressure of an existing spray gun flow adjusting structure are solved.

Description

Technical Field

[0001] This utility model relates to the field of bathroom product technology, and more specifically, to a spray gun with infinitely adjustable flow rate. Background Technology

[0002] Traditional spray guns lack flow rate adjustment, making it difficult to meet users' flow rate needs in different usage scenarios and limiting their application. To address this, more and more spray guns are incorporating flow rate adjustment mechanisms, such as the one disclosed in Chinese patent CN205518333U. This mechanism controls the water flow rate by adjusting the overlap area of ​​the water passage holes on the outer and inner water passage panels using a switch button. However, this type of structure suffers from pressure imbalance between the inner and outer water passages, resulting in significant resistance when adjusting the switch button, or varying force required for each adjustment. This can easily lead to over-adjustment or inaccurate adjustment, affecting user experience. Utility Model Content

[0003] This utility model discloses a spray gun with stepless flow rate adjustment, which aims to improve the problem of uneven adjustment force and inaccurate adjustment caused by the pressure imbalance of the existing spray gun flow rate adjustment structure.

[0004] The present invention adopts the following solution:

[0005] A spray gun with infinitely adjustable flow rate includes a body, an adjusting shaft, and a drive structure. The body has an inlet channel, an outlet channel, and a moving cavity. The adjusting shaft is sleeved in the moving cavity and is driven by the drive structure to move axially. The moving cavity has an inlet communicating with the inlet channel and an outlet channel communicating with the outlet channel on its sidewall. A through channel is provided along the axial direction of the adjusting shaft. An outlet with the same extension direction as the inlet is provided on the sidewall of the through channel. When the adjusting shaft moves, the area of ​​the inlet communicating with the through channel and the area of ​​the outlet communicating with the outlet channel change equally to ensure balanced force on both ends of the adjusting shaft.

[0006] As a further improvement, the drive structure includes a roller, a transmission component, and a rack. The roller is at least partially exposed outside the body and connected to the transmission component. The transmission component is provided with a gear portion, and the rack is disposed on the adjusting shaft and meshes with the gear portion.

[0007] As a further improvement, the rack is integrally formed with the adjusting shaft.

[0008] As a further improvement, the transmission component is provided with a rotating shaft and a locking part. The rotating shaft is inserted into the mounting groove of the body so that the transmission component is rotatably connected to the body. The locking part engages with the roller for limiting the movement. By pushing the roller, the transmission component can swing around the rotating shaft.

[0009] As a further improvement, the body is provided with a water inlet, the water inlet is located on the side wall of the water inlet and extends along the axial direction of the adjusting shaft, and the mounting groove is located on the top of the water inlet.

[0010] As a further improvement, the water inlet is provided with a guide groove, and the outer wall of the adjusting shaft is provided with a guide portion, which engages with the guide groove to restrict the movement direction of the adjusting shaft.

[0011] As a further improvement, the body is provided with a water inlet connector, which is threadedly connected to the body to abut against the water inlet component axially.

[0012] As a further improvement, the outer wall of the roller is provided with anti-slip texture.

[0013] As a further improvement, the rolling direction of the roller is the same as the length direction of the handle.

[0014] As a further improvement, the water outlet end of the water outlet channel is equipped with a water outlet cover that can be detachably connected to the main body, and the water outlet cover is provided with multiple water outlets.

[0015] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0016] 1. During the adjustment process, the forces at both ends of the adjustment shaft remain balanced, ensuring a uniform force required to drive the adjustment shaft and thus enabling more precise water flow regulation. This also guarantees a smooth adjustment feel, enhancing the user experience and making it easier for users to operate.

[0017] 2. The gear and rack transmission mechanism ensures smooth movement of the adjusting shaft, enabling stepless flow regulation. The rack and adjusting shaft are integrally molded, reducing parts assembly and lowering costs.

[0018] 3. The water outlet cover and the main body are detachably connected, which facilitates the disassembly and replacement of the water outlet cover, improves the compatibility of the main body, and reduces development costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of one embodiment of the present utility model;

[0021] Figures 2 to 5 This is a cross-sectional view of one embodiment of the present invention along different sections;

[0022] Figure 6 This is a schematic diagram of the structure of the water inlet component according to one embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of the adjusting shaft according to one embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of a transmission component according to one embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of a roller according to one embodiment of the present invention;

[0026] Figure 10 This is an exploded view of one embodiment of the present invention.

[0027] icon:

[0028] 1-Main body; 11-Inlet channel; 12-Outlet channel; 13-Moving cavity; 131-Inlet; 132-Outlet channel; 14-Inlet component; 141-Mounting groove; 142-Guide groove; 15-Inlet connector; 16-Handle; 17-Outlet cover.

[0029] 2-Adjusting shaft; 21-Water flow channel; 22-Outlet; 23-Guide section;

[0030] 3-Drive structure; 31-Roller; 311-Leaning groove; 312-Anti-slip texture; 32-Transmission component; 321-Gear part; 322-Rotating shaft part; 323-Snap-fit ​​part; 33-Rack. Detailed Implementation

[0031] 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 a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example

[0032] Combination Figures 1 to 10 This embodiment provides a spray gun with infinitely adjustable flow rate, including a body 1, an adjusting shaft 2, and a driving structure 3. The body 1 has an inlet channel 11, an outlet channel 12, and a moving cavity 13. The adjusting shaft 2 is sleeved in the moving cavity 13 and is driven by the driving structure 3 to move axially. Specifically, the side wall of the moving cavity 13 has an inlet 131 communicating with the inlet channel 11 and an outlet channel 132 communicating with the outlet channel 12. A through channel 21 is provided through the adjusting shaft 2 axially. The side wall of the through channel 21 has an outlet 22 extending in the same direction as the inlet 131. When the adjusting shaft 2 moves, the area of ​​the inlet 131 connected to the through channel 21 and the area of ​​the outlet 22 connected to the outlet channel 132 change equally, so that the forces on both ends of the adjusting shaft 2 are balanced.

[0033] For example, when the adjusting shaft 2 moves closer to the inlet 131, the sealing area of ​​the outer wall of the adjusting shaft 2 relative to the inlet 131 increases, resulting in a decrease in the inlet flow rate. Simultaneously, the area connecting the outlet 22 and the outlet channel 132 decreases. Conversely, when the adjusting shaft 2 moves away from the inlet 131, the sealing area of ​​the outer wall of the adjusting shaft 2 relative to the inlet 131 decreases, resulting in an increase in the inlet flow rate. Simultaneously, the area connecting the outlet 22 and the outlet channel 132 increases. This ensures that the outlet area of ​​the adjusting shaft 2 changes in the same way as the inlet area of ​​the moving cavity 13, guaranteeing balanced force at both ends of the adjusting shaft 2.

[0034] It should be noted that in this embodiment, the forces at both ends of the adjusting shaft 2 remain balanced during the adjustment process, thus ensuring that the force required to drive the adjusting shaft 2 is uniform, making the water flow adjustment more precise. This also ensures a good adjustment feel, improving the user experience and making it easier for users to operate.

[0035] In a preferred embodiment, the drive structure 3 includes a roller 31, a transmission component 32, and a rack 33. The roller 31 is at least partially exposed outside the body 1 and connected to the transmission component 32. The transmission component 32 is provided with a gear portion 321, and the rack 33 is disposed on the adjusting shaft 2 and meshes with the gear portion 321. By moving the roller 31, the gear portion 321 of the transmission component 32 drives the rack 33 to move, thereby driving the adjusting shaft 2 to move. The transmission between the gear portion 321 and the rack 33 is smooth, ensuring smooth movement of the adjusting shaft 2 and achieving stepless flow regulation. Furthermore, the rack 33 and the adjusting shaft 2 are integrally formed, which can reduce parts assembly and reduce costs.

[0036] Based on the above embodiments, in an optional embodiment of this utility model, the transmission member 32 is provided with a rotating shaft portion 322 and a locking portion 323. The rotating shaft portion 322 is inserted into the mounting groove 141 of the main body 1 so that the transmission member 32 is rotatably connected to the main body 1. The locking portion 323 engages and limits the roller 31. By pushing the roller 31, the transmission member 32 can swing around the rotating shaft. For example, the roller 31 is provided with a relief groove 311, which is sleeved on the rotating shaft portion 322. The locking portion 323 is a snap-fit. By pushing the roller 31, the locking portion 323 drives the transmission member 32 to rotate, which correspondingly causes the gear portion 321 on the transmission member 32 to drive the rack 33 to move, thereby driving the adjusting shaft 2 to move axially.

[0037] Preferably, the main body 1 is equipped with a water inlet 14, with a water inlet 131 located on the side wall of the water inlet 14 and extending axially along the adjusting shaft 2. A mounting groove 141 is located on the top of the water inlet 14. Specifically, multiple elongated water inlets 131 are arranged in a circumferential array on the side wall of the water inlet 14. By driving the adjusting shaft 2 to move, the area of ​​the water inlet 131 communicating with the water flow channel 21 is adjusted accordingly. The mounting groove 141 on the water inlet 14 simplifies the internal structure of the main body 1 and facilitates its molding.

[0038] Based on the above embodiments, in an optional embodiment of the present invention, the water inlet 14 is provided with a guide groove 142, and the outer wall of the adjusting shaft 2 is provided with a guide part 23. The guide part 23 engages with the guide groove 142 to limit the movement direction of the adjusting shaft 2, prevent the adjusting shaft 2 from shaking in the moving cavity 13, ensure the adjustment feel, and further ensure the adjustment accuracy.

[0039] Preferably, the main body 1 is provided with a water inlet connector 15, which is threadedly connected to the main body 1 to abut against the water inlet component 14 axially. During installation, the adjusting shaft 2 is first placed into the moving cavity 13, then the water inlet component 14 is placed in, and then the water inlet connector 15 is installed to limit the water inlet component 14 axially. The structure is simple and easy to disassemble and assemble.

[0040] In another embodiment, the outer wall of the roller 31 is provided with anti-slip texture 312, which facilitates rolling by the user and prevents slippage. The rolling direction of the roller 31 is the same as the length direction of the handle 16, which is ergonomic and convenient for one-handed operation.

[0041] In other embodiments, the water outlet end of the water outlet channel 12 is equipped with a water outlet cover 17 that is detachably connected to the main body 1. The water outlet cover 17 is provided with multiple water outlets. The water outlet cover 17 and the main body 1 can be connected by a snap-fit, so as to facilitate the disassembly and replacement of the water outlet cover 17, which can improve the compatibility of the main body 1 and reduce development costs.

[0042] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are within the protection scope of this utility model.

Claims

1. A spray gun with infinitely adjustable flow rate, characterized in that, The device includes a main body, an adjusting shaft, and a driving structure. The main body has an inlet channel, an outlet channel, and a moving cavity. The adjusting shaft is sleeved in the moving cavity and is driven by the driving structure to move axially. The moving cavity has an inlet communicating with the inlet channel and an outlet communicating with the outlet channel on its side wall. A through channel is provided along the axial direction of the adjusting shaft. An outlet is provided on the side wall of the through channel in the same direction as the inlet. When the adjusting shaft moves, the area of ​​the inlet communicating with the through channel and the area of ​​the outlet communicating with the outlet channel change equally to balance the force on both ends of the adjusting shaft.

2. The spray gun with infinitely adjustable flow rate according to claim 1, characterized in that, The drive structure includes a roller, a transmission component, and a rack. The roller is at least partially exposed outside the body and connected to the transmission component. The transmission component has a gear portion, and the rack is disposed on the adjusting shaft and meshes with the gear portion.

3. The spray gun with infinitely adjustable flow rate according to claim 2, characterized in that, The rack and the adjusting shaft are integrally formed.

4. The spray gun with infinitely adjustable flow rate according to claim 2, characterized in that, The transmission component is provided with a rotating shaft and a locking part. The rotating shaft is inserted into the mounting groove of the body so that the transmission component is rotatably connected to the body. The locking part engages with the roller for limiting the movement. By pushing the roller, the transmission component can swing around the rotating shaft.

5. The spray gun with infinitely adjustable flow rate according to claim 4, characterized in that, The body is equipped with a water inlet, the water inlet is located on the side wall of the water inlet and extends along the axial direction of the adjusting shaft, and the mounting groove is located on the top of the water inlet.

6. The spray gun with infinitely adjustable flow rate according to claim 5, characterized in that, The water inlet is provided with a guide groove, and the outer wall of the adjusting shaft is provided with a guide portion. The guide portion engages with the guide groove to restrict the movement direction of the adjusting shaft.

7. The spray gun with infinitely adjustable flow rate according to claim 6, characterized in that, The main body is provided with a water inlet connector, which is threadedly connected to the main body to abut against the water inlet component along the axial direction.

8. The spray gun with infinitely adjustable flow rate according to claim 2, characterized in that, The outer wall of the roller is provided with anti-slip texture.

9. The spray gun with stepless adjustable flow rate according to claim 2, characterized in that, The roller rolls in the same direction as the length of the handle.

10. The spray gun with infinitely adjustable flow rate according to claim 1, characterized in that, The water outlet end of the water outlet channel is equipped with a water outlet cover that can be detachably connected to the main body, and the water outlet cover is provided with multiple water outlets.

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