A spray gun capable of swinging and spraying water in multiple directions

Abstract

The present invention discloses a spray gun capable of swinging and spraying water in multiple directions, comprising a spray gun body, the spray gun body comprising a spray nozzle and a handle, a water outlet opening being provided on the spray nozzle, the spray gun body being provided with a rectifying chamber, a water flow channel and a water outlet opening being connected with the rectifying chamber; a guide member being provided in the rectifying chamber, the guide member dividing the rectifying chamber into a connected guide chamber and a reflux chamber, the guide member being used to guide the water flow in the guide chamber to the water outlet opening in an inclined direction; a reflux guide surface being provided on both sides of the water outlet opening of the spray gun body, the reflux guide surface being used to guide the water flow impinging thereon to the reflux chamber on the corresponding side; a guide bucket being provided below the spray nozzle, a pull rope being connected to the inner surface of the guide side wall, a spring being connected to the electromagnetic assembly, an iron sheet being provided at one end of the spring away from the electromagnetic assembly, a mounting groove being provided on the spray gun body, a roller and an electromagnetic assembly for generating electromagnetic force by energizing being provided on the mounting groove. The present invention realizes the swinging of water flow in multiple directions, such as up and down and left and right.

Description

Technical Field

[0001] The invention relates to the field of spray guns capable of swinging in multiple directions to spray water, and in particular to a spray gun capable of swinging in multiple directions to spray water. Background Art

[0002] At present, a Chinese patent with announcement number CN 2776569Y discloses a handheld spray gun, which includes a spray gun body, wherein a water inlet channel and a water outlet channel are provided in the body, the water inlet channel and the water outlet channel are connected by a valve, a nozzle is provided at the outlet end of the water outlet channel, the inlet end of the water inlet channel is a water inlet connected to a water inlet pipe, and a handle rotatably connected to the body is provided, the valve connecting the water inlet channel and the water outlet channel is a ball valve, which is composed of a valve seat fixed in the body and a valve ball placed in the valve seat and matched with the inner cavity of the valve seat, a driving shaft is fixedly connected to the valve ball, and the handle is matched with the driving shaft through a valve control mechanism, and the valve control mechanism includes a gear rack structure.

[0003] However, the above-mentioned spray gun has the following disadvantages: the water flow sprayed from the nozzle of the spray gun can only be sprayed in a straight line, and cannot be swung to spray water. When it is necessary to swing the water spray to achieve large-area spraying, it can only be achieved by holding the handle and shaking the hand left and right or up and down to achieve multi-directional swing spraying, which is quite troublesome. Therefore, it is urgent to develop a spray gun that can automatically swing to spray water. Summary of the invention

[0004] In view of the above problems, the present invention proposes a spray gun capable of swinging in multiple directions to spray water, which solves the defect that the existing spray guns require hand-held handles to achieve swinging and spraying in multiple directions by shaking the hand left and right or up and down, which is relatively troublesome.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A spray gun capable of swinging and spraying water in multiple directions, comprising a spray gun body, the spray gun body comprising a water spray nozzle and a handle, the water outlet being provided on the water spray nozzle, the spray gun body being provided with a rectifying cavity, a water flow channel connected with the rectifying cavity, and a water outlet; a guide member is provided in the rectifying cavity, the guide member divides the rectifying cavity into a connected guide cavity and a reflux cavity, the guide member is used to guide the water flow in the guide cavity to the water outlet in an inclined direction; the spray gun body is provided with reflux guide surfaces on both sides of the water outlet, the reflux guide surfaces are used to guide the water flow impinging thereon to the reflux cavity on the corresponding side;

[0007] A guide bucket is installed below the water spray nozzle, and the guide bucket includes a guide bottom plate and guide side walls located on both sides of the guide bottom plate, a pull rope is connected to the inner surface of the guide side wall, a through hole is provided on the guide bottom plate, a ball placed on the top of the through hole is installed on the through hole, a through hole is provided on the vertical center axis of the ball, a spring is connected to the electromagnetic component, an iron sheet is installed at one end of the spring away from the electromagnetic component, a mounting groove is installed on the spray gun body, a roller and an electromagnetic component for generating electromagnetic force by energizing are installed on the mounting groove, and the pull rope passes downward through the through hole into the mounting groove and bypasses the roller to connect the iron sheet.

[0008] The present invention uses a guide structure to impact the main water flow in an oblique direction to generate a first water flow branch and a second water flow branch in opposite directions, and uses the reflux water in the reflux chambers on both sides to alternately impact the main water flow, thereby realizing the swinging of the main water flow. A guide bucket is further installed below the water nozzle, and the guide bucket can guide the movement of the water flow. According to the Coanda effect, it will guide the water flow to flow outward along the guide bucket. The electromagnetic component is energized to generate electromagnetic force to absorb the iron sheet, pull the pull rope, and pull the guide bottom plate and the guide side wall of the guide bucket inward through the pull rope, and swing up and down, thereby adjusting the up and down swing of the water flow.

[0009] Optionally, the electromagnetic component is externally connected to a switch component, the switch component includes a micro switch and a power supply, and the electromagnetic component, the micro switch and the power supply are connected in series to form a closed circuit; the switch component includes a handle mounted on the spray gun body.

[0010] Optionally, the guide bottom plate protrudes upward, and the guide side wall protrudes above the center of the guide bottom plate. The guide bottom plate and the guide side wall are both made of elastic material, and the elasticity of the guide bottom plate is less than that of the guide side wall.

[0011] Optionally, the thickness of the guide side wall gradually converges from the bottom to the top.

[0012] Optionally, the thickness of the guide bottom plate gradually converges from the rear end to the front end.

[0013] Optionally, the guide chamber is formed between the guide members on both sides, the reflux chamber is arranged on both sides of the guide chamber, and the water nozzle is provided with a limiting hole connected to the water outlet and limiting the water outlet angle; the diameter of the water outlet is smaller than the width of the guide chamber, and the spray gun body is provided with a guide structure on the side of the reflux chamber close to the water flow channel; the guide structure is used to guide the reflux water in the reflux chamber into the guide chamber in an inclined direction, and impact part of the water flow entering the rectifying chamber from the water flow channel to deviate and make it flow to the reflux guide surface on the opposite side.

[0014] Optionally, the guide member is provided with a first guide slope, which is provided on a side of the guide member close to the water outlet, and the water flow in the guide cavity is guided toward the water outlet and the return guide surface through the first guide slope of the corresponding side guide member.

[0015] Optionally, the guide structure includes a second guide slope close to the water flow channel and arranged on the side walls of the reflux chamber on both sides. The water flowing back in the reflux chamber is inclined to rush into the guide chamber under the guidance of the second guide slope.

[0016] Optionally, the guide members on both sides are symmetrically provided with third guide slopes on one side facing the guide cavity, and the third guide slopes are arranged on a side of the guide member close to the water flow channel corresponding to the second guide slopes.

[0017] Optionally, the fan-shaped angle a between the first guiding inclined surface and the third guiding inclined surface is set to 130° to 140°.

[0018] Beneficial Effects

[0019] 1. The present invention uses a guide structure to impact the main water flow in an oblique direction to generate a first water flow branch and a second water flow branch in opposite directions, and uses the return water in the return chambers on both sides to alternately impact the main water flow to achieve the swinging discharge of the main water flow.

[0020] 2. In the present invention, a guide bucket is further installed below the water nozzle, and the guide bucket can guide the movement of water flow. According to the Coanda effect, it will guide the water flow to flow outward along the guide bucket. The electromagnetic component is energized to generate electromagnetic force to attract the iron sheet, pull the pull rope, and pull the guide bottom plate and guide side wall of the guide bucket inward through the pull rope, and swing up and down, thereby adjusting the up and down swing of the water flow.

[0021] 3. In the present invention, the thickness of the guide side wall gradually converges from the bottom to the top, and the thickness of the guide bottom plate gradually converges from the rear end to the front end, so that the deformation ability of the guide side wall and the end of the guide bottom plate is stronger, which facilitates the expansion of the range of water flow extending up and down and left and right.

[0022] 4. The elasticity of the guide bottom plate of the present invention is less than that of the guide side wall. A pull rope is connected to the inner surface of the guide side wall. A through hole is provided on the guide bottom plate. A ball is installed on the through hole. A through hole is provided on the vertical center axis of the ball. The ball is placed on the top of the through hole. When the pull rope is tightened, the guide bottom plate swings downward, and the side wall converges, so that the water flow swings downward and flows out, thereby adjusting the direction of the water flow in the upper and lower directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a partial structural diagram of the explosion of the spray gun capable of swinging in multiple directions to spray water according to the first embodiment of the present invention;

[0024] Figure 2 It is a partial stereoscopic view of a spray gun capable of swinging in multiple directions to spray water according to Embodiment 1 of the present invention;

[0025] Figure 3 is a cross-sectional view of a flow guide of a spray gun capable of swinging in multiple directions to spray water according to Embodiment 1 of the present invention;

[0026] Figure 4 is a perspective view of a spray gun capable of swinging in multiple directions to spray water according to Embodiment 2 of the present invention;

[0027] Figure 5 The spray gun capable of swinging and spraying water in multiple directions according to the second embodiment of the present invention Figure 4 AA cross-sectional view;

[0028] Figure 6 The spray gun capable of swinging and spraying water in multiple directions according to the second embodiment of the present invention Figure 5 A partial enlarged view of part A;

[0029] Figure 7 It is a three-dimensional view of a spray gun guide bucket capable of swinging in multiple directions to spray water according to embodiment 2 of the present invention.

[0030] The reference numerals in the figures are:

[0031] 1. Spray gun body, 2. Water nozzle, 3. Handle, 4. Switch assembly, 5. Rectification chamber, 6. Water flow channel, 7. Water outlet, 8. Limit hole, 9. Guide piece, 10. Guide chamber, 11. Backflow chamber, 12. Backflow guide surface, 13. First guide slope, 14. Second guide slope, 15. Third guide slope, 16. Guide bucket, 17. Guide bottom plate, 18. Guide side wall, 19. Fixed plate, 20. Perforation, 21. Ball, 22. Pull rope, 23. Mounting slot, 24. Electromagnetic assembly, 25. Spring, 26. Iron sheet, 27. Roller, 28. Micro switch, 29. Power supply. DETAILED DESCRIPTION

[0032] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example 1

[0035] The technical solution adopted by the present invention is as follows:

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention discloses a spray gun capable of swinging and spraying water in multiple directions, comprising: the spray gun body 1 comprises a spray nozzle 2 and a handle 3, the water outlet is provided on the spray nozzle, the spray gun body is provided with a rectifying cavity 5, a water flow channel 6 connected with the rectifying cavity and a water outlet 7; the water nozzle is provided with a limiting hole 8 connected with the water outlet and limiting the water outlet angle;

[0037] A guide member 9 is arranged in the rectifying cavity, and the guide member divides the rectifying cavity into a connected guide cavity 10 and a return cavity 11. The guide cavity is formed between the guide members on both sides, and the return cavity is arranged on both sides of the guide cavity. The guide member is used to guide the water flow in the guide cavity to the water outlet in an inclined direction.

[0038] The caliber of the water outlet is smaller than the width of the guide cavity, and the spray gun body is provided with a reflux guide surface 12 on both sides of the water outlet, and the reflux guide surface is used to guide the water flow impacting thereon to the reflux cavity on the corresponding side; the spray gun body is provided with a guide structure on the side of the reflux cavity close to the water flow channel; the guide structure is used to guide the reflux water flow in the reflux cavity into the guide cavity in an inclined direction, and impact part of the water flow entering the rectification cavity from the water flow channel to deviate and make it flow to the reflux guide surface on the opposite side.

[0039] The guide member is provided with a first guide slope 13, which is provided on one side of the guide member close to the water outlet. The water flow in the guide cavity is guided to flow toward the water outlet and the return guide surface through the first guide slope of the corresponding side guide member.

[0040] The fan-shaped angle a formed between the first guiding inclined surface and the third guiding inclined surface is set to 130° to 140°.

[0041] The guide structure includes a second guide slope 14 which is close to the water flow channel and is arranged on the side walls of the reflux chamber on both sides. The water flowing back in the reflux chamber is inclined to rush into the guide chamber under the guidance of the second guide slope.

[0042] The guide members on both sides are symmetrically provided with third guide slopes 15 on one side facing the guide cavity. The third guide slopes are arranged on the side of the guide members close to the water flow channel corresponding to the second guide slopes.

[0043] When this embodiment is implemented, the water flow channel of the spray gun body is connected to the municipal water. In the initial stage, the water in the water flow channel flows into the rectifying cavity and is sprayed in a straight line toward the water outlet. Since the diameter of the water outlet is smaller than the width of the diversion cavity, and the water pressure of the municipal water in the water flow channel is difficult to reach a balanced state, the water pressure in the water flow channel is unstable, causing the water flow entering the diversion cavity to partially deviate and hit the return guide surface on one side. Under the guiding action of the return guide surface, this part of the water flow is driven into the return cavity, and finally the water flow in the return cavity is hit in an inclined direction on the main water flow moving in a straight line through the guide structure, hitting the main water flow to make a part of it A large-angle deviation occurs to form a first water flow branch, which impacts the main water flow at the water outlet position under the guiding action of the guide member, causing it to discharge water at an inclined angle. The other part deviates at a small angle to form a second water flow branch, which hits the return guide surface on the other side, flows into the return chamber on the corresponding side under the guiding action of the return guide surface on the other side, and finally impacts the main water flow in an inclined direction through the guide structure to produce the first water flow branch and the second water flow branch in opposite directions. This cycle is repeated, and the return water in the return chambers on both sides is used to alternately impact the main water flow to achieve a swinging water discharge of the main water flow, which has the effect of swingable water discharge and easy operation.

[0044] Example 2

[0045] The difference between Example 2 and Example 1 is that Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, a detachable guide bucket 16 is installed under the water spray nozzle, and the guide bucket includes a guide bottom plate 17 and guide side walls 18 located on both sides of the guide bottom plate. A fixing plate 19 is installed on the inner surface of the guide side wall. A through hole 20 is provided on the guide bottom plate, and a ball 21 placed on the top of the through hole is installed on the through hole. A pull rope 22 is connected to the fixing plate, and a through hole is provided on the vertical center axis of the ball. A mounting groove 23 is installed on the spray gun body, and a ball for generating electricity is installed in the mounting groove. The electromagnetic force electromagnetic assembly 24 is connected to a spring 25, and an iron sheet 26 is installed at one end of the spring away from the electromagnetic assembly. A roller 27 is installed on the mounting groove. The pull rope passes through the perforation downward into the mounting groove and bypasses the roller to connect the iron sheet. The electromagnetic assembly is externally connected to a switch assembly 4, and the switch assembly includes a handle mounted on the spray gun body. The switch assembly includes a micro switch 28 and a power supply 29. The electromagnetic assembly, the micro switch and the power supply are connected in series to form a closed circuit. The spray gun body of this embodiment can be assembled with multiple parts or an integrated structure. The surface of the handle facing the micro switch is provided with elastic material.

[0046] The Coanda Effect in the present invention is also called the wall attachment effect or the Coanda Effect. The fluid (water flow or air flow) deviates from the original flow direction and changes to flow along the protruding surface of an object. When there is surface friction between the fluid and the surface of the object it flows through (also known as fluid viscosity), as long as the curvature is not large, the fluid will flow along the surface of the object.

[0047] The guide bottom plate and the guide side wall are both made of elastic material, and the elasticity of the guide bottom plate is less than that of the guide side wall. The guide bottom plate protrudes upward, and the guide side wall protrudes above the center of the guide bottom plate. The thickness of the guide side wall gradually converges from the bottom to the top. The thickness of the guide bottom plate gradually converges from the rear end to the front end.

[0048] When this embodiment is implemented, the electromagnetic component, the micro switch and the power supply are connected in series to form a closed circuit. The operation only requires pressing the guide bucket installed under the water nozzle. The guide bucket can guide the movement of water. According to the Coanda effect, it will guide the water to flow outward along the guide bucket. The electromagnetic component is energized to generate electromagnetic force to attract the iron sheet and pull the pull rope. The pull rope pulls the guide bottom plate and the guide side wall of the guide bucket inward and swings up and down, thereby adjusting the up and down swing of the water flow.

[0049] The thickness of the guide side wall gradually converges from the bottom to the top, and the thickness of the guide bottom plate gradually converges from the rear end to the front end, so that the deformation ability of the guide side wall and the end of the guide bottom plate is stronger, which facilitates the expansion of the range of water flow extending up and down and left and right.

[0050] The elasticity of the guide bottom plate is smaller than that of the guide side wall. A pull rope is connected to the inner surface of the guide side wall. A through hole is provided on the guide bottom plate. A ball is installed on the through hole. A through hole is provided on the vertical center axis of the ball. The ball is placed on the top of the through hole. When the pull rope is tightened, the guide bottom plate swings downward and the side wall converges, causing the water flow to swing downward and flow out, thereby adjusting the direction of the water flow in the upper and lower directions.

[0051] Example 3

[0052] The present invention discloses a spray gun capable of swinging and spraying water in multiple directions, comprising a spray gun body, characterized in that: the spray gun body comprises a water spray nozzle and a handle, the water outlet is provided on the water spray nozzle, the spray gun body is provided with a rectifying cavity, a water flow channel and a water outlet communicated with the rectifying cavity; a guide member is arranged oppositely in the rectifying cavity, the guide member divides the rectifying cavity into a connected guide cavity and a reflux cavity, the guide member is used to guide the water flow in the guide cavity to the water outlet in an inclined direction; the spray gun body is provided with reflux guide surfaces on both sides of the water outlet, the reflux guide surfaces are used to guide the water flow impinging thereon to the reflux cavity on the corresponding side;

[0053] A guide bucket is installed below the water spray nozzle, and the guide bucket includes a guide bottom plate and guide side walls located on both sides of the guide bottom plate, a pull rope is connected to the inner surface of the guide side wall, a through hole is provided on the guide bottom plate, a ball is installed on the through hole, a through hole is provided on the vertical center axis of the ball, a spring is connected to the electromagnetic component, an iron sheet is installed at one end of the spring away from the electromagnetic component, a mounting groove is installed on the spray gun body, a roller and an electromagnetic component for generating electromagnetic force by energizing are installed on the mounting groove, and the pull rope passes downward through the through hole into the mounting groove and bypasses the roller to connect the iron sheet.

[0054] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. A spray gun capable of swinging and spraying water in multiple directions, comprising a spray gun body, characterized in that: The spray gun body comprises a water spray nozzle and a handle, the spray gun body is provided with a rectifying chamber, a water flow channel and a water outlet hole connected with the rectifying chamber; the water outlet hole is provided on the water spray nozzle, and a guide member is arranged opposite to each other in the rectifying chamber, the guide member divides the rectifying chamber into a connected guide chamber and a reflux chamber, and the guide member is used to guide the water flow in the guide chamber to the water outlet hole in an inclined direction; the spray gun body is provided with reflux guide surfaces on both sides of the water outlet, and the reflux guide surfaces are used to guide the water flow impinging thereon to the reflux chamber on the corresponding side; a guide bucket is arranged under the water spray nozzle, the guide bucket comprises a guide bottom plate and guide side walls located on both sides of the guide bottom plate, a pull rope is connected to the inner surface of the guide side wall, a through hole is arranged on the guide bottom plate, a ball placed on the top of the through hole is mounted on the through hole, and the ball A through hole is provided on the vertical central axis, and a mounting groove is provided on the spray gun body. A roller and an electromagnetic component for generating electromagnetic force by powering on are installed on the mounting groove. A spring is connected to the electromagnetic component. An iron sheet is installed on the end of the spring away from the electromagnetic component. The pull rope passes downward through the through hole on the ball into the mounting groove and bypasses the roller to connect the iron sheet; the guide bottom plate protrudes upward, and the guide side wall protrudes above the center of the guide bottom plate. The guide bottom plate and the guide side wall are both made of elastic material, and the elasticity of the guide bottom plate is less than that of the guide side wall; the electromagnetic component is externally connected to a switch component, and the switch component includes a micro switch and a power supply. The electromagnetic component, the micro switch and the power supply are connected in series to form a closed circuit; the switch component is installed on the handle on the spray gun body; the thickness of the guide side wall gradually converges from the bottom to the top.

2. A spray gun capable of swinging in multiple directions to spray water according to claim 1, characterized in that: The thickness of the guide bottom plate gradually converges from the rear end to the front end.

3. A spray gun capable of swinging in multiple directions to spray water according to claim 1 or 2, characterized in that: The guide cavity is formed between the guide members on both sides, the reflux cavity is arranged on both sides of the guide cavity, the water nozzle is provided with a limit hole connected to the water outlet and limiting the water outlet angle; the caliber of the water outlet is smaller than the width of the guide cavity, and the spray gun body is provided with a guide structure on the side of the reflux cavity close to the water flow channel; the guide structure is used to guide the reflux water in the reflux cavity into the guide cavity in an inclined direction, and impact part of the water entering the rectification cavity from the water flow channel, causing a deviation to make it flow to the reflux guide surface on the opposite side.

4. The spray gun capable of swinging in multiple directions to spray water according to claim 3, characterized in that: The guide member is provided with a first guide slope, which is arranged on a side of the guide member close to the water outlet. The water flow in the guide cavity is guided to flow toward the water outlet and the return guide surface through the first guide slope of the corresponding side guide member.

5. The spray gun capable of swinging in multiple directions to spray water according to claim 4, characterized in that: The guide structure includes a second guide slope which is close to the water flow channel and is arranged on the side walls of the reflux chamber on both sides. The water flowing back in the reflux chamber is inclined to rush into the guide chamber under the guidance of the second guide slope.

6. The spray gun capable of swinging in multiple directions to spray water according to claim 5, characterized in that: The guide members on both sides are symmetrically provided with third guide slopes on one side facing the guide cavity, and the third guide slopes are arranged on the side of the guide member close to the water flow channel corresponding to the second guide slopes.

7. The spray gun capable of swinging in multiple directions to spray water according to claim 6, characterized in that: The fan-shaped angle a formed between the first guiding inclined surface and the third guiding inclined surface is set to 130° to 140°.

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