Spray gun capable of spraying water in swinging mode

Abstract

The spray gun capable of spraying water in a swinging mode comprises a spray gun body, and the spray gun body is provided with a rectifying cavity, a water flow channel and a water outlet hole. Flow guide parts are oppositely arranged in the rectification cavity and divide the rectification cavity into a flow guide cavity and backflow cavities which are communicated, the flow guide cavity is formed between the flow guide parts on the two sides, the backflow cavities are formed in the two sides of the flow guide cavity respectively, and the flow guide parts are used for guiding water flow in the flow guide cavity to the water outlet hole in the inclined direction; the caliber of the water outlet hole is smaller than the minimum width of the flow guide cavity, backflow guide faces are arranged on the portions, on the two sides of the water outlet hole, of the spray gun body, and the backflow guide faces are used for guiding water flow impacting the backflow guide faces to the backflow cavities on the corresponding sides; a guide structure is arranged on the side, close to the water flow channel, of the backflow cavity of the spray gun body and used for guiding backflow water flow in the backflow cavity into the flow guide cavity in the inclined direction and impacting part of water flow in the rectification cavity to deviate so that the water flow can flow to the backflow guide face on the opposite side. The device has the advantages of being capable of discharging water in a swinging mode and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of agriculture and forestry irrigation, in particular to a spray gun capable of swinging and spraying water. Background Art

[0002] The existing Chinese patent with announcement number CN 2776569Y discloses a handheld spray gun, which includes a spray gun body, 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 the 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, the water spray can only be achieved by holding the handle and shaking the hand left and right, which is quite troublesome. Therefore, it is urgent to develop a spray gun that can automatically swing and spray water. Utility Model Content

[0004] The utility model aims to provide a spray gun capable of swinging and spraying water, which has the effects of swingable water discharge and convenient operation.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a spray gun capable of swinging and spraying water, comprising a spray gun body, wherein the spray gun body is provided with a rectifying cavity, a water flow channel and a water outlet hole connected with the rectifying cavity;

[0006] The rectifying cavity is provided with guide members opposite to each other, the guide members divide the rectifying cavity into a connected guide cavity and a return cavity, the guide cavity is formed between the guide members on both sides, the return cavity is provided on both sides of the guide cavity, and the guide members are used to guide the water flow in the guide cavity to the water outlet in an inclined direction;

[0007] The caliber of the water outlet is smaller than the width of the guide cavity, and 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 cavity on the corresponding side;

[0008] The spray gun body is provided with a guide structure on one side of the reflux chamber close to the water flow channel, and the guide structure is used to guide the reflux water flow in the reflux chamber into the guide chamber in an inclined direction, and impact part of the water flow entering the rectification chamber from the water flow channel to deviate and make it flow to the reflux guide surface on the opposite side.

[0009] By adopting the above technical solution, 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 it Part of it deviates at a large angle 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 to make it 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 the swinging water discharge of the main water flow, which has the effect of swingable water discharge and easy operation.

[0010] The utility model is further configured as follows: the guide members on both sides are symmetrically provided with first guide slopes on one side facing the guide cavity, the first guide slopes are provided on the side of the guide member close to the water outlet, and the water flow in the guide cavity is guided to flow toward the water outlet and the return guide surface through the first guide slopes of the corresponding side guide members.

[0011] By adopting the above technical solution, the first branch water flow is guided by the first guide slope and sprayed toward the water outlet in an inclined direction, and impacts the main water flow sprayed straight from the water flow channel to cause it to deviate and change direction.

[0012] The utility model is further configured as follows: 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, and the water flowing back in the reflux chamber is inclined to rush into the guide chamber under the guidance of the second guide slope.

[0013] By adopting the above technical solution, the water flowing in the reflux cavity rushes toward the guide cavity in an inclined direction under the guidance of the second guide slope, and collides and merges with the main water flow ejected from the water flow channel in a linear motion.

[0014] The utility model is further configured as follows: 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.

[0015] By adopting the above technical solution, the third guide slope is arranged corresponding to the second guide slope on the opposite side, and the first water flow branch is received and guided to fall onto the guide member through the third guide slope.

[0016] The utility model is further configured as follows: the second guiding inclined surface and the third guiding inclined surface have an arc transition.

[0017] By adopting the above technical solution, the arc transition design can enable the first water flow branch to smoothly guide the flow from the third guide slope to the first guide slope on the guide member, and at the same time can achieve the effect of noise reduction.

[0018] The utility model is further configured as follows: the guide member is provided with a first guiding inclined surface, and a fan-shaped angle α between the first guiding inclined surface and the third guiding inclined surface is set to 130° to 140°.

[0019] The utility model is further configured as follows: the ends of the flow guide members on both sides close to the water outlet are provided with avoidance gaps.

[0020] By adopting the above technical solution, the setting of the avoidance gap enables the guide member to better avoid the path of the second water flow branch, so that the second water flow branch can flow into the reflux chamber better.

[0021] The utility model is further configured as follows: the two flow guides are detachably fixedly connected to the rectifying cavity of the spray gun body.

[0022] By adopting the above technical solution, the guide member adopts a detachable design, which can facilitate the installation, disassembly and cleaning of the guide member.

[0023] The utility model is further configured as follows: the diameter of the water outlet end of the water flow channel gradually decreases toward one side of the diversion cavity, so that the cross section of the water flow channel is in a conical shape.

[0024] By adopting the above technical solution, the water flow channel with a constricted design can increase the flow velocity of the water flowing into the rectifying cavity.

[0025] The utility model is further configured as follows: the spray gun body comprises a water spray nozzle, the water outlet hole is arranged on the water spray nozzle, and the water spray nozzle is provided with a limiting hole which is connected to the water outlet hole and limits the water outlet angle.

[0026] By adopting the above technical solution and utilizing the limiting effect of the limiting hole on the water outlet angle, the water spraying swing angle of the water spray nozzle can be limited.

[0027] In summary, the utility model has the following beneficial effects:

[0028] The invention adopts that flow guides are arranged relatively in the rectifying cavity of the spray gun body, and the flow guides on both sides divide the rectifying cavity into a connected flow guide cavity and a reflux cavity. In addition, the spray gun body is provided with a water flow channel and a water outlet hole connected with the rectifying cavity, the diameter of the water outlet hole is smaller than the width of the flow guide cavity, and the spray gun body is provided with reflux guide surfaces on both sides of the water outlet hole, and the spray gun body is provided with a second guide inclined surface relatively on the side of the reflux cavity close to the water flow channel. The water flow channel of the spray gun body is connected to municipal water with unstable water pressure. Since the diameter of the water outlet hole is smaller than the width of the flow guide cavity, and the water pressure of the municipal water entering the water flow channel is difficult to reach a balanced state, the water pressure in the water flow channel is unstable, resulting in the water entering the guide cavity. The water flow inside partially deviates and hits the reflux guide surface on one side, and is guided into the reflux chamber by the reflux guide surface, and finally hits the main water flow obliquely through the second guide inclined surface, so that the main water flow branch forms a first water flow branch and a second water flow branch. The first water flow branch hits the main water flow at the water outlet position under the guiding action of the guide member to make it discharge at an inclined angle, and the second water flow branch hits the reflux guide surface on the other side, and flows into the reflux chamber on the corresponding side under the guiding action of the reflux guide surface on the other side. This cycle is repeated, and the reflux water in the reflux chambers on both sides is used to alternately hit the main water flow to achieve the swinging water discharge of the main water flow, which has the effect of swingable water discharge and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural diagram of the utility model.

[0030] Figure 2 This utility model Figure 1 A partial enlarged view of area A.

[0031] Figure 3 It is a schematic diagram of the internal water flow direction when the water flow just enters the rectifying cavity of the utility model.

[0032] Figure 4 It is a schematic diagram of the internal water flow direction in the reflux stage of the utility model.

[0033] Figure 5 It is a schematic diagram of the internal water flow direction of the utility model in which the main water flow is laterally impacted by the water flow in the reflux chamber to form a first water flow branch and a second water flow branch.

[0034] Figure 6 It is an exploded view of the utility model.

[0035] Figure 7 It is an exploded view of the water spray nozzle and the flow guide member of the utility model.

[0036] In the figure: 1. spray gun body; 10. water nozzle; 101. water outlet; 102. limit hole; 11. rectifying chamber; 111. guide chamber; 112. reflux chamber; 1121. reflux guide surface; 1122. second guide slope; 12. water flow channel; 2. guide member; 21. first guide slope; 22. third guide slope; 23. avoidance gap. DETAILED DESCRIPTION

[0037] The utility model is further described below in conjunction with the accompanying drawings.

[0038] A spray gun that can swing and spray water, such as Figure 1-2 As shown, the spray gun body 1 includes a rectifying chamber 11, a water flow channel 12 connected to the rectifying chamber 11, and a water outlet 101; a guide member 2 is arranged in the rectifying chamber 11, and the guide member 2 divides the rectifying chamber 11 into a connected guide chamber 111 and a reflux chamber 112, the guide chamber 111 is formed between the guide members 2 on both sides, and the reflux chamber 112 is arranged on both sides of the guide chamber 111, and the guide member 2 is used to guide the water flow in the guide chamber 111 to the water outlet 101 in an inclined direction; the caliber of the water outlet 101 is smaller than the minimum width of the guide chamber 111, and the spray gun body 1 is provided with a reflux guide surface 1121 on both sides of the water outlet 101, and the reflux guide surface 1121 is used to guide the water flow that hits it The water flow on the rectifier chamber 11 is guided to the reflux chamber 112 on the corresponding side; the spray gun body 1 is provided with a guide structure on the side of the reflux chamber 112 close to the water flow channel 12, and the guide structure is used to guide the reflux water flow in the reflux chamber 112 to the guide chamber 111 in an inclined direction, and impact the partial water flow entering the rectifying chamber 11 from the water flow channel 12 to deviate and make it flow to the reflux guide surface 1121 on the opposite side; the spray gun body 1 includes a water nozzle 10, and a water outlet hole 101 is opened on the water nozzle 10. The water nozzle 10 is provided with a limiting hole 102 connected to the water outlet hole 101 and limiting the water outlet angle. The limiting effect of the limiting hole 102 on the water outlet angle can limit the water spray swing angle of the water nozzle 10.

[0039] like Figure 2-5As shown, the guide members 2 on both sides are symmetrically provided with a first guide slope 21 on one side facing the guide cavity 111. The first guide slope 21 is arranged on the side of the guide member 2 close to the water outlet 101. The water flow in the guide cavity 111 is guided to flow toward the water outlet 101 and the return guide surface 1121 through the first guide slope 21 of the corresponding side guide member 2. Under the guiding action of the first guide slope 21, the first branch water flow is sprayed toward the water outlet 101 in an inclined direction, and impacts the main water flow sprayed out of the water flow channel 12 in a straight line to cause it to deviate and change direction; the guiding structure includes a second guide slope 1122 close to the water flow channel 12 and relatively arranged on the side walls of the return cavity 112 on both sides. The water flow returning in the return cavity 112 is obliquely rushed into the guide cavity 111 under the guiding action of the second guide slope 1122. The water flow flowing in the return cavity 112 is rushed into the guide cavity 111 in an oblique direction under the guiding action of the second guide slope 1122, and with the straight line The main water flow ejected from the water flow channel 12 is moved and side-collides and merges; the guide members 2 on both sides are symmetrically provided with a third guide slope 22 on one side facing the guide cavity 111, and the third guide slope 22 corresponds to the second guide slope 1122 and is arranged on the side of the guide member 2 close to the water flow channel 12. The third guide slope 22 is arranged corresponding to the second guide slope 1122 on the opposite side, and the first water flow branch is connected and guided to fall on the guide member 2 through the third guide slope 22; there is an arc transition between the second guide slope 1122 and the third guide slope 22, and the design of the arc transition can make the first water flow branch smoothly guide the flow from the third guide slope 22 to the first guide slope 21 on the guide member 2, and at the same time can play a noise reduction effect; the guide member 2 is provided with a first guide slope 21, and the fan-shaped angle α between the first guide slope 21 and the third guide slope 22 is set to 130°~140°, and the fan-shaped angle α in this embodiment is set to 136°.

[0040] like Figure 5-7 As shown, the ends of the guide members 2 on both sides close to the water outlet 101 are relatively provided with avoidance notches 23. The setting of the avoidance notches 23 enables the guide members 2 to better avoid the path of the second water flow branch, so that the second water flow branch can better flow to the reflux chamber 112; the two guide members 2 are detachably fixedly connected to the rectifying chamber 11 of the spray gun body 1, and the guide members 2 adopt a detachable design, which can facilitate the installation and disassembly and cleaning of the guide members 2; the water outlet end of the water flow channel 12 gradually reduces its caliber toward the side of the guide chamber 111, so that the cross-section of the water outlet end of the water flow channel 12 is conical, and the water flow channel 12 with a tapered design can increase the flow rate of the water flowing into the rectifying chamber 11.

[0041] The basic working principle of the utility model is as follows: the water flow channel 12 of the spray gun body 1 is connected to the municipal water. In the initial stage, the water in the water flow channel 12 flows into the rectifying chamber 11 and is sprayed in a straight line toward the water outlet 101. Since the caliber of the water outlet 101 is smaller than the minimum width of the guide chamber 111, and the water pressure of the municipal water entering the water flow channel 12 is difficult to reach a balanced state, the water pressure in the water flow channel 12 is unstable, causing the water flow entering the guide chamber 111 to partially deviate and hit the return guide surface 1121 on one side. Under the guiding action of the return guide surface 1121, this part of the water flow is driven into the return chamber 112, and finally the water flow in the return chamber 112 is hit in an inclined direction by the guide structure on the main body moving in a straight line. On the water flow, it hits the main water flow, causing a part of it to deviate at a large angle to form a first water flow branch. Under the guiding action of the guide member 2, the first water flow branch impacts the main water flow at the water outlet 101 to make it discharge at an inclined angle, and the other part deviates at a small angle to form a second water flow branch. The second water flow branch hits the return guide surface 1121 on the other side, and flows into the return chamber 112 on the corresponding side under the guiding action of the return guide surface 1121 on the other side, and finally impacts the main water flow in an inclined direction through the guiding structure to generate 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 112 on both sides is used to alternately impact the main water flow, so as to realize the swinging water discharge of the main water flow, which has the effect of swingable water discharge and convenient operation.

[0042] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A swivelling water spray gun, comprising a spray gun body (1), characterized in that: The spray gun body (1) is provided with a rectifying chamber (11), a water flow channel (12) communicating with the rectifying chamber (11), and a water outlet hole (101); A flow guide (2) is arranged in the rectifying chamber (11) opposite to each other, the flow guide (2) divides the rectifying chamber (11) into a flow guide chamber (111) and a return chamber (112) which are connected to each other, the flow guide chamber (111) is formed between the flow guides (2) on both sides, the return chamber (112) is arranged on both sides of the flow guide chamber (111), and the flow guide (2) is used to guide the water flow in the flow guide chamber (111) to the water outlet (101) in an inclined direction; The caliber of the water outlet hole (101) is smaller than the width of the guide cavity (111), and the spray gun body (1) is provided with return flow guide surfaces (1121) on both sides of the water outlet hole (101), and the return flow guide surfaces (1121) are used to guide the water flow impinging thereon to the return flow cavity (112) on the corresponding side; The spray gun body (1) is provided with a guide structure on one side of the reflux chamber (112) close to the water flow channel (12), and the guide structure is used to guide the water flow returning from the reflux chamber (112) into the guide chamber (111) in an inclined direction, and to impact part of the water flow entering the rectifying chamber (11) from the water flow channel (12) to deviate and flow to the reflux guide surface (1121) on the opposite side.

2. A swivelling water spray gun according to claim 1, characterized in that: The guide members (2) on both sides are symmetrically provided with first guide slopes (21) on one side facing the guide cavity (111); the first guide slopes (21) are provided on the side of the guide member (2) close to the water outlet (101); the water flow in the guide cavity (111) is guided to flow toward the water outlet (101) and the return guide surface (1121) via the first guide slopes (21) of the guide members (2) on the corresponding side.

3. The swingable water spraying gun according to claim 1, characterized in that: The guide structure comprises a second guide inclined surface (1122) which is close to the water flow channel (12) and is arranged on the side walls of the reflux chamber (112) on both sides. The water flowing back in the reflux chamber (112) is inclined to rush into the guide chamber (111) under the guiding action of the second guide inclined surface (1122).

4. A swivellable water spraying gun according to claim 3, characterized in that: The guide members (2) on both sides are symmetrically provided with third guide slopes (22) facing the guide cavity (111), and the third guide slopes (22) are arranged on the side of the guide member (2) close to the water flow channel (12) corresponding to the second guide slopes (1122).

5. A swivelling water spray gun according to claim 4, characterized in that: There is an arc transition between the second guiding inclined surface (1122) and the third guiding inclined surface (22).

6. A swivelling water spraying gun according to claim 4, characterized in that: The flow guide (2) is provided with a first guiding inclined surface (21), and a sector angle α formed between the first guiding inclined surface (21) and a third guiding inclined surface (22) is set to be 130° to 140°.

7. The swingable water spraying gun according to claim 1, characterized in that: The ends of the flow guide members (2) on both sides close to the water outlet hole (101) are provided with avoidance gaps (23) opposite to each other.

8. The swingable water spraying gun according to claim 1, characterized in that: The two flow guide members (2) are detachably fixedly connected to the flow rectifying chamber (11) of the spray gun body (1).

9. The swingable water spraying gun according to claim 1, characterized in that: The diameter of the water outlet end of the water flow channel (12) gradually decreases towards the side of the flow guide cavity (111), so that the cross section of the water flow channel (12) is in a conical shape.

10. The swingable water spraying gun according to claim 1, characterized in that: The spray gun body (1) comprises a water spray nozzle (10), the water outlet hole (101) is arranged on the water spray nozzle (10), and the water spray nozzle (10) is provided with a limiting hole (102) which is connected to the water outlet hole (101) and limits the water outlet angle.

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