Flow-adjustable spray gun

Abstract

The flow-adjustable spray gun comprises an upper core shaft, a lower core shaft and a flow shaft, the lower core shaft is connected with the upper core shaft in a sleeved mode, a first water inlet is formed in the bottom of the lower core shaft, a first water outlet is formed in the top of the lower core shaft, a water outlet piece covers the top face of the first water outlet, a second water inlet is formed in the side face of the water outlet piece, and the flow shaft is connected with the flow shaft. A first water outlet is formed in the upper mandrel, a sealing ring is arranged at the first water outlet, the flow shaft is arranged in the upper mandrel in an up-down movable mode, the lower portion of the flow shaft penetrates through the water outlet piece, the first water outlet and the sealing ring and is located in the lower mandrel, a water passing opening extending upwards is formed in the bottom of the flow shaft, and the upper mandrel is provided with a push button driving the flow shaft to ascend and descend. The upper core shaft is provided with a water outlet channel communicated with the second water inlet, the outer side face of the top of the upper core shaft is provided with a second water outlet communicated with the water outlet channel, and the second water outlet is connected with a spray head assembly. The position of the push button can be adjusted according to the use requirement of a user, so that the flow of the spray gun is adjusted.

Description

Technical Field

[0001] The invention relates to the field of sanitary ware, in particular to a spray gun with adjustable flow rate. Background Art

[0002] Bathroom spray guns have become an essential tool for modern bathroom upgrades due to their efficient cleaning, health care and multifunctional flushing features. Whether it is for daily home use or maintenance in public places, it can significantly improve cleaning efficiency and comfort. At present, bathroom spray guns on the market are equipped with a control handle or a water outlet button. When the control handle or the water outlet button is pressed, the water outlet of the spray gun is realized. However, traditional bathroom spray guns have a single function and can only output a fixed amount of water, which cannot meet the diverse water outlet needs. Based on this, the applicant has conducted intensive research and thus came up with this case. Summary of the invention

[0003] The present invention provides a spray gun with adjustable flow rate, the main purpose of which is to overcome the problem that the existing bathroom spray guns cannot meet the diverse water output requirements.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A flow-adjustable spray gun, comprising an upper mandrel, a lower mandrel and a flow shaft, wherein the lower mandrel is an inner hollow structure, the top of the lower mandrel is sleeved in the bottom of the upper mandrel, the bottom of the lower mandrel is provided with a first water inlet, the top of the lower mandrel is provided with a first water outlet, the top surface cover of the first water outlet is provided with a water outlet member, the water outlet member is sleeved in the upper mandrel, the side of the water outlet member is provided with a second water inlet, a sealing ring is provided at the first water outlet, the flow shaft can be movably arranged in the upper mandrel up and down, and the flow The lower part of the shaft passes through the water outlet, the first water outlet and the sealing ring and is located in the lower core shaft. The bottom of the flow shaft is provided with a water outlet extending upward, and the opening of the water outlet gradually increases from top to bottom. The upper core shaft is provided with a push button for driving the flow shaft to rise and fall. When the push button is in the lowermost position, the water outlet is located below the sealing ring. The upper core shaft is provided with a water outlet channel connected to the second water inlet. The top outer side surface of the upper core shaft is provided with a second water outlet connected to the water outlet channel, and the second water outlet is connected to a nozzle assembly.

[0006] Furthermore, a slide groove is provided on the outer side surface of the upper core shaft, a shading piece is provided in the slide groove, the shading piece can slide up and down along the slide groove, the shading piece is connected to the flow shaft, and the push-twist piece is connected to the shading piece.

[0007] Furthermore, the upper core shaft is provided with an axial channel running through from top to bottom, the flow shaft is located in the axial channel, the top of the upper core shaft is provided with an end cover for sealing the top of the axial channel, the outer side surface of the upper core shaft is provided with an opening communicating with the axial channel, the shading member is provided with a connecting portion, the connecting portion is located in the opening and can slide up and down in the opening, and the connecting portion is connected to the flow shaft.

[0008] Furthermore, the end surface of the connecting portion close to the flow axis is provided with two convex portions arranged up and down, the outer side surface of the flow axis is provided with a receiving groove, the two convex portions are located in the receiving groove, and the two convex portions are respectively in conflict with the top surface and the bottom surface of the receiving groove, the front and rear sides of the opening are provided with ribs, and the ribs are provided with a plurality of arc-shaped bayonet holes arranged up and down, the connecting portion is provided with two elastic plates arranged front and back, and the sides of the two elastic plates close to the ribs are provided with arc-shaped clamping portions, the arc-shaped clamping portions are located in the arc-shaped bayonet holes, and the left end portion of the elastic plate is provided with a hook, and the hook is located on the left side of the rib.

[0009] Furthermore, the shading member is provided with a rod hole, the left end of the connecting part is provided with a mounting groove connected to the rod hole, two buckles arranged front and back are provided in the mounting groove, a connecting rod is provided at the end of the push-twist member close to the shading member, the connecting rod passes through the rod hole and is located in the mounting groove, buckle grooves are provided on the front and rear sides of the connecting rod, each buckle corresponds to a buckle groove, and the buckle is buckled on the buckle groove.

[0010] Furthermore, the present invention also includes a shell, the upper core shaft, the lower core shaft, the nozzle assembly and the shading member are located in the shell, the shell is provided with a strip groove, the connecting rod passes through the strip groove, and the push knob is located outside the shell.

[0011] Furthermore, a sleeve connected to the shaft channel is provided in the lower part of the upper core shaft, a first incision is provided on the side of the sleeve, the water outlet part is located in the sleeve, the water outlet part is provided with two limit plates, the two limit plates are respectively located on both sides of the second water inlet, and the two limit plates are respectively in conflict with the two side surfaces of the first incision.

[0012] Furthermore, the spray head assembly includes a face cover assembly and a fixing member, the fixing member is detachably connected to the second water outlet, and the face cover assembly is detachably connected to the fixing member.

[0013] Furthermore, the fixing part is a left-right through structure, and a connecting plate and a second incision are provided on the end face of the fixing part close to the second water outlet, the second incision is located on one side of the connecting plate, the connecting plate is provided with a slot that passes through from top to bottom, a groove is provided on the right side face of the slot, and a slot connected to the second incision is provided on the bottom of the connecting plate close to the second incision, a connecting part is provided on the top face of the second water outlet, a convex rib is provided on the right side face of the connecting part, the connecting part is located in the slot, the convex rib is located in the groove, the length and width of the slot are respectively greater than the length and width of the connecting part, the surface cover assembly includes a water spray surface cover and a water outlet rod connected to the right end of the water spray surface cover, the outer peripheral surface of the water outlet rod is provided with an external thread, the fixing part is provided with an internal thread, the water outlet rod and the fixing part are connected by the external thread and the internal thread, and the right end of the water outlet rod extends into the second water outlet.

[0014] Furthermore, an extension portion is provided at the bottom of the end cover, and two limit plates arranged on the left and right are provided at the bottom of the extension portion, the extension portion and the two limit plates are located in the upper part of the shaft channel, the top of the flow shaft is located between the two limit plates, the top of the upper core shaft is provided with two contact plates arranged front and back and staggered, the outer side surface of the end cover is provided with two hook portions arranged front and back, and the top of the upper core shaft is also provided with two lugs arranged front and back, each hook portion corresponds to a contact plate and a lug, the hook portion is hooked on the bottom of the lug, and the side surface of the hook portion contacts with the corresponding contact plate.

[0015] It can be seen from the above description of the present invention that compared with the prior art, the present invention has the following advantages: when the push knob is at the lowest position, the water port of the flow axis is located below the sealing ring, at which time the water port cannot be connected to the water outlet channel, and the spray gun is in a closed state. When the push knob is pushed upward, the push knob drives the flow axis to move upward, and as the flow axis moves upward, the water port will gradually be located above the sealing ring, and the water port is connected to the water outlet channel. As the flow axis continues to rise, the more the water port is exposed above the sealing ring, the greater the water flow through the water port is at this time. When the push knob is pushed to the highest point, the water flow through the water port is the largest at this time. Similarly, when the push knob drives the flow axis to gradually move downward, the less the water port is exposed above the sealing ring, until the water port is completely located below the sealing ring, the spray gun is in a closed state again. The present invention can adjust the position of the push knob according to the user's use requirements, thereby realizing the adjustment of the spray gun flow rate and meeting the user's diverse water outlet requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present invention.

[0017] Figure 2 It is a structural exploded view of the present invention.

[0018] Figure 3 This is a structural exploded view of the present invention after removing the shell.

[0019] Figure 4 It is a structural exploded view of the upper mandrel of the present invention.

[0020] Figure 5 for Figure 4 Exploded view of the structure from another angle.

[0021] Figure 6 It is a structural exploded view of the upper mandrel and the nozzle assembly of the present invention.

[0022] Figure 7 for Figure 6 Exploded view of the structure from another angle.

[0023] Figure 8 It is a structural diagram of the upper mandrel of the present invention.

[0024] Fig. 9 This is a cross-sectional view of the push knob of the present invention in the initial position.

[0025] Fig.10 This is a cross-sectional view of the push knob of the present invention located at the middle position.

[0026] Fig.11 It is a cross-sectional view of the push-twist device of the present invention at the end position. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted 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 the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] Reference Figures 1 to 3 , Fig. 9A flow-adjustable spray gun includes an upper mandrel 1, a lower mandrel 2 and a flow axis 3. The lower mandrel 2 is a hollow structure. The top of the lower mandrel 2 is sleeved in the bottom of the upper mandrel 1. The lower mandrel 2 and the upper mandrel 1 are connected by a buckle connection. The bottom of the lower mandrel 2 is provided with a first water inlet 21. The top of the lower mandrel 2 is provided with a first water outlet 22. The top surface of the first water outlet 22 is covered with a water outlet 4. The water outlet 4 is sleeved in the upper mandrel 1. The side of the water outlet 4 is provided with a second water inlet 41. A sealing ring 23 is provided at the first water outlet 22. The first water outlet 22 has a supporting edge 24. The sealing ring 23 is placed on the supporting edge 24. The flow shaft 3 can be movably arranged in the upper core shaft 1, and the lower part of the flow shaft 3 passes through the water outlet 4, the first water outlet 22 and the sealing ring 23 and is located in the lower core shaft 2. The bottom of the flow shaft 3 is provided with a water outlet 31 extending upward, and the opening of the water outlet 31 gradually increases from top to bottom. The upper core shaft 1 is provided with a push knob 5 for driving the flow shaft 3 to rise and fall. When the push knob 5 is at the lowest position, the water outlet 31 is located below the sealing ring 23. The upper core shaft 1 is provided with a water outlet channel 11 connected to the second water inlet 41. The top outer side surface of the upper core shaft 1 is provided with a second water outlet 12 connected to the water outlet channel 11, and the second water outlet 12 is connected to the nozzle assembly 6.

[0030] Reference Figures 3 to 5 , Fig. 9 The outer side surface of the upper mandrel 1 is provided with a slide groove 12, and a shading member 7 is provided in the slide groove 12. The shading member 7 can slide up and down along the slide groove 12, and the shading member 7 is connected to the flow shaft 3, and the push-twist 5 is connected to the shading member 7. The upper mandrel 1 is provided with an axial channel 13 that passes through from top to bottom, and the flow shaft 3 is located in the axial channel 13. The top of the upper mandrel 1 is provided with an end cover 8 for sealing the top of the axial channel 13, and the outer side surface of the upper mandrel 1 is provided with an opening 14 that is connected to the axial channel 13. The shading member 7 is provided with a connecting portion 71, and the connecting portion 71 is located in the opening 14 and can slide up and down in the opening 14, and the connecting portion 71 is connected to the flow shaft 3.

[0031] Reference Figures 3 to 5The end surface of the connecting portion 71 close to the flow axis 3 is provided with two convex portions 72 arranged up and down, and the outer side surface of the flow axis 3 is provided with a receiving groove 32, and the two convex portions 72 are located in the receiving groove 32, and the two convex portions 72 are respectively in conflict with the top surface and the bottom surface of the receiving groove 32. The front and rear sides of the opening 14 are provided with ribs 15, and the ribs 15 are provided with a plurality of arc-shaped bayonet holes 16 arranged up and down. The connecting portion 71 is provided with two elastic plates 73 arranged front and back, and the sides of the two elastic plates 73 close to the ribs 15 are provided with arc-shaped clamping portions 74, and the arc-shaped clamping portions 74 are located in the arc-shaped bayonet holes 16. The left end of the elastic plate 73 is provided with a hook 75, and the hook 75 is located on the left side of the rib 15.

[0032] Reference Figures 3 to 5 The shading member 7 is provided with a rod hole 76, and the left end of the connecting portion 71 is provided with a mounting groove 77 connected to the rod hole 76, and two buckles 78 arranged front and back are provided in the mounting groove 77. The end of the push knob 5 close to the shading member 7 is provided with a connecting rod 51, and the connecting rod 51 passes through the rod hole 76 and is located in the mounting groove 77. The front and rear sides of the connecting rod 51 are provided with buckle grooves 52, and each buckle 78 corresponds to a buckle groove 52, and the buckle 78 is buckled on the buckle groove 52.

[0033] Reference Figures 3 to 5 When the shading member 7 is connected to the flow axis 3, the connecting portion 71 is located in the opening 14, and at the same time, the two protrusions 72 are located in the receiving groove 32, the arc-shaped clamping portions 74 of the two elastic plates 73 are clamped in the arc-shaped clamping openings 16 of the corresponding ribs 15, and the hooks 75 of the two elastic plates 73 are hooked on the left side of the ribs 15, so that the shading member 7 and the flow axis 3 are fixedly connected. Then, the connecting rod 51 of the push-twist 5 is passed through the rod hole 76, and the buckle 78 is buckled on the corresponding buckle groove 52, so that the push-twist 5 and the shading member 7 are fixedly connected. When the push knob 5 is pushed up or down, the push knob 5 simultaneously drives the shading piece 7 and the flow axis 3 to move up or down. The cooperation between the arc-shaped clamping portion 74 and the arc-shaped bayonet 16 enables the push knob 5 to achieve multi-speed adjustment when driving the shading piece 7 and the flow axis 3 to move up or down. The number of the arc-shaped bayonet 16 can be set as needed. Every time the push knob 5 is pushed up or down, the arc-shaped clamping portion 74 can be selected to cooperate with the arc-shaped bayonet 16 at the appropriate position so as to accurately control the position of the flow axis 3.

[0034] Reference Figure 1 , Figure 2 and Figure 5 The present invention also includes a shell 9, the upper core shaft 1, the lower core shaft 2, the nozzle assembly 6 and the shading member 7 are located in the shell 9, the shell 9 is provided with a strip groove 91, the connecting rod 51 passes through the strip groove 91 to be connected with the connecting part 71, and the push knob 5 is located outside the shell 9.

[0035] Reference Figure 3 and Figure 8 The lower part of the upper core shaft 1 is provided with a sleeve 17 in communication with the shaft channel 13, and the side of the sleeve 17 is provided with a first cutout 18, and the water outlet 4 is located in the sleeve 17. The water outlet 4 is provided with two limit plates 42, and the two limit plates 42 are respectively located on both sides of the second water inlet 41, and the two limit plates 42 are respectively in conflict with the two side surfaces of the first cutout 18. The water outlet 4 is fixed in the sleeve 17, and the bottom of the water outlet 4 covers the first water outlet 22.

[0036] Reference Figure 2 , Figure 3 , Figure 6 and Figure 7 The nozzle assembly 6 includes a cover assembly 61 and a fixing member 62. The fixing member 62 is detachably connected to the second water outlet 12. The cover assembly 61 is detachably connected to the fixing member 62. The fixing member 62 is a left-right through structure. The end surface of the fixing member 62 close to the second water outlet 12 is provided with a connecting plate 63 and a second cutout 64. The second cutout 64 is located on one side of the connecting plate 63. The connecting plate 63 is provided with a slot 65 that passes through from top to bottom. The right side surface of the slot 65 is provided with a groove 66. The bottom of the connecting plate 63 close to the second cutout 64 is provided with a slot 67 that communicates with the second cutout 64. The top surface of the second water outlet 12 is provided with a connecting member 19. The right side surface of the connecting member 19 is provided with a convex rib 191. The connecting member 19 is located in the slot 65. The convex rib 191 is located in the groove 66. The length and width of the slot 65 are respectively greater than the length and width of the connecting member 19. The surface cover assembly 61 includes a water spray surface cover 611 and a water outlet rod 612 connected to the right end of the water spray surface cover 611, the outer peripheral surface of the water outlet rod 612 is provided with an external thread 613, and the fixing part 62 is provided with an internal thread 621. The water outlet rod 612 and the fixing part 62 are threadedly connected by the external thread 613 and the internal thread 621, and the right end of the water outlet rod 612 extends into the second water outlet 12.

[0037] Reference Figure 6 and Figure 7 When the nozzle assembly 6 is connected to the upper core shaft 1, the connecting member 19 is first located in the second cutout 64 of the fixing member 62, and then the fixing member 62 is rotated so that the connecting member 19 enters the clamping groove 65 from the second cutout 64 through the groove 67, and the convex rib 191 is located in the groove 66, and then the water outlet rod 612 of the face cover assembly 61 is screwed into the fixing member 62. During the tightening process, the water outlet rod 612 will pull the fixing member 62 to move to the left, so that the convex rib 191 is clamped in the groove 66.

[0038] Reference Figures 2 to 5The bottom of the end cover 8 is provided with an extension 81, and the bottom of the extension 81 is provided with two limit plates 82 arranged left and right. The extension 81 and the two limit plates 82 are located in the upper part of the shaft channel 13, and the top of the flow axis 3 is located between the two limit plates 82. The top of the upper core shaft 1 is provided with two front-to-back and staggered contact plates 10, and the outer side surface of the end cover 8 is provided with two front-to-back hooks 83, and the top of the upper core shaft 1 is also provided with two front-to-back lugs 100, each hook 83 corresponds to a contact plate 10 and a lug 100, the hook 83 is hooked on the bottom of the lug 100, and the side of the hook 83 contacts the corresponding contact plate 10.

[0039] Reference Figures 2 to 5 When the end cover 8 is connected to the top of the upper core shaft 1, the extension portion 81 and the two limit plates 82 are first inserted into the upper part of the shaft channel 13, and the hook portion 83 is misaligned with the corresponding lug 100, and then the end cover 8 is rotated so that the lug 100 enters the corresponding hook portion 83. When the hook portion 83 conflicts with the corresponding contact plate 10, the end cover 8 is rotated into place, and the hook portion 83 completely hooks the lug 100.

[0040] Reference Figures 1 to 7 The assembly process of the present invention is as follows: first, insert the flow shaft 3 into the shaft channel 13 of the upper core shaft 1, and after the flow shaft 3 is inserted into the shaft channel 13, connect the light shielding member 7 with the upper core shaft 1 and the flow shaft 3, then connect the end cover 8 to the top of the upper core shaft 1, and then sleeve the lower core shaft 2 with the upper core shaft 1, and after the sleeve connection of the lower core shaft 2 with the upper core shaft 1 is completed, the core shaft assembly composed of the lower core shaft 2 and the upper core shaft 1 is sleeved into the shell 9, and the shell 9 has a nozzle assembly accommodating chamber 92, and the nozzle assembly The accommodating cavity 92 of the component is directly opposite to the second water outlet 12, and then the connecting rod 51 of the push-twist 5 is passed through the strip groove 91 and the rod hole 76 to connect with the shading component 7, and finally the fixing part 62 of the nozzle assembly 6 is connected to the second water outlet 12 of the upper core shaft 61, and the water outlet rod 612 of the nozzle assembly 6 is then tightened in the fixing part 62. After the fixing part 62 is connected to the second water outlet 12, the accommodating cavity 92 of the shell 9 can be stuck, so that the lower core shaft 2, the upper core shaft 1, the nozzle assembly 6 and the shell 9 form a complete connection.

[0041] Reference Figures 1 to 11The design principle of the present invention is as follows: when the push knob 5 is at the lowest position, the water port 31 of the flow axis 3 is located below the sealing ring 23. At this time, the water port 31 cannot be connected to the water outlet channel 11, and the spray gun is in a closed state. When the push knob 5 is pushed upward, the push knob 5 drives the flow axis 3 to move upward. As the flow axis 3 moves upward, the water port 31 will gradually be located above the sealing ring 23. The water port 31 is connected to the water outlet channel 11. As the flow axis 3 continues to rise, the more the water port 31 is exposed above the sealing ring 23, the greater the water flow through the water port 31. When the push knob 5 is pushed to the highest point, the water flow through the water port 31 is the largest. Similarly, when the push knob 5 drives the flow axis 3 to move gradually downward, the less the water port 31 is exposed above the sealing ring 23, until the water port 31 is completely located below the sealing ring 23, and the spray gun is in a closed state again.

[0042] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A flow-adjustable spray gun, characterized in that: The invention comprises an upper mandrel, a lower mandrel and a flow shaft, wherein the lower mandrel is an inner hollow structure, the top of the lower mandrel is sleeved in the bottom of the upper mandrel, the bottom of the lower mandrel is provided with a first water inlet, the top of the lower mandrel is provided with a first water outlet, the top surface cover of the first water outlet is provided with a water outlet member, the water outlet member is sleeved in the upper mandrel, the side of the water outlet member is provided with a second water inlet, a sealing ring is provided at the first water outlet, the flow shaft can be movably arranged in the upper mandrel up and down, and the lower part of the flow shaft is penetrated The water outlet part, the first water outlet and the sealing ring are located in the lower core shaft, the bottom of the flow shaft is provided with a water outlet extending upward, the opening of the water outlet gradually increases from top to bottom, the upper core shaft is provided with a push button for driving the flow shaft to rise and fall, when the push button is in the lowermost position, the water outlet is located below the sealing ring, the upper core shaft is provided with a water outlet channel connected with the second water inlet, the top outer side surface of the upper core shaft is provided with a second water outlet connected with the water outlet channel, and the second water outlet is connected with a nozzle assembly.

2. A flow-adjustable spray gun as claimed in claim 1, characterized in that: A slide groove is arranged on the outer side surface of the upper core shaft, a light shielding member is arranged in the slide groove, the light shielding member can slide up and down along the slide groove, the light shielding member is connected to the flow shaft, and the push-twist member is connected to the light shielding member.

3. A flow-adjustable spray gun as claimed in claim 2, characterized in that: The upper core shaft is provided with an axial channel which passes through from top to bottom, the flow shaft is located in the axial channel, the top of the upper core shaft is provided with an end cover for sealing the top of the axial channel, the outer side surface of the upper core shaft is provided with an opening which is connected to the axial channel, the shading member is provided with a connecting portion, the connecting portion is located in the opening and can slide up and down in the opening, and the connecting portion is connected to the flow shaft.

4. A flow-adjustable spray gun as claimed in claim 3, characterized in that: The end surface of the connecting portion close to the flow axis is provided with two convex portions arranged up and down, the outer side surface of the flow axis is provided with a receiving groove, the two convex portions are located in the receiving groove, and the two convex portions respectively conflict with the top surface and the bottom surface of the receiving groove, the front and rear sides of the opening are provided with ribs, and the ribs are provided with a plurality of arc-shaped bayonet holes arranged up and down, the connecting portion is provided with two elastic plates arranged front and back, and the sides of the two elastic plates close to the ribs are provided with arc-shaped clamping portions, and the arc-shaped clamping portions are located in the arc-shaped bayonet holes, and the left end of the elastic plate is provided with a hook, and the hook is located on the left side of the rib.

5. A flow-adjustable spray gun as claimed in claim 4, characterized in that: The shading member is provided with a rod hole, the left end of the connecting part is provided with a mounting groove connected to the rod hole, two buckles arranged front and back are provided in the mounting groove, a connecting rod is provided at the end of the push-twist member close to the shading member, the connecting rod passes through the rod hole and is located in the mounting groove, buckle grooves are provided on the front and rear sides of the connecting rod, each buckle corresponds to a buckle groove, and the buckle is buckled on the buckle groove.

6. A flow-adjustable spray gun as claimed in claim 5, characterized in that: It also includes a shell, the upper core shaft, the lower core shaft, the nozzle assembly and the shading member are located in the shell, the shell is provided with a strip groove, the connecting rod passes through the strip groove, and the push knob is located outside the shell.

7. A flow-adjustable spray gun as claimed in claim 3, characterized in that: A sleeve connected to the shaft channel is provided in the lower part of the upper core shaft, a first incision is provided on the side of the sleeve, the water outlet part is located in the sleeve, and the water outlet part is provided with two limit plates, the two limit plates are respectively located on both sides of the second water inlet, and the two limit plates are respectively in conflict with the two side surfaces of the first incision.

8. A flow-adjustable spray gun as claimed in claim 1, characterized in that: The spray head assembly comprises a face cover assembly and a fixing member, wherein the fixing member is detachably connected to the second water outlet, and the face cover assembly is detachably connected to the fixing member.

9. A flow-adjustable spray gun as claimed in claim 8, characterized in that: The fixing part is a left-right through structure, and a connecting plate and a second incision are provided on the end face of the fixing part close to the second water outlet, and the second incision is located on one side of the connecting plate, and the connecting plate is provided with a slot that passes through from top to bottom, and a groove is provided on the right side face of the slot, and a slot connected to the second incision is provided on the bottom of the connecting plate close to the second incision, and a connecting part is provided on the top face of the second water outlet, and a convex rib is provided on the right side face of the connecting part, and the connecting part is located in the slot, and the convex rib is located in the groove, and the length and width of the slot are respectively greater than the length and width of the connecting part, and the surface cover assembly includes a water spray surface cover and a water outlet rod connected to the right end of the water spray surface cover, the outer peripheral surface of the water outlet rod is provided with an external thread, and the fixing part is provided with an internal thread, the water outlet rod and the fixing part are connected by the external thread and the internal thread, and the right end of the water outlet rod extends into the second water outlet.

10. A flow-adjustable spray gun as claimed in claim 3, characterized in that: An extension portion is provided at the bottom of the end cover, and two limit plates arranged on the left and right are provided at the bottom of the extension portion. The extension portion and the two limit plates are located in the upper part of the shaft channel, and the top of the flow shaft is located between the two limit plates. Two contact plates arranged front to back and staggered are provided at the top of the upper core shaft, and two hook portions arranged front to back are provided on the outer side surface of the end cover. Two lugs arranged front to back are also provided on the top of the upper core shaft, each hook portion corresponds to a contact plate and a lug, the hook portion is hooked on the bottom of the lug, and the side surface of the hook portion contacts the corresponding contact plate.

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