Handheld telescopic spraying rod for sprayer

Abstract

The handheld telescopic spraying rod for the sprayer comprises a first pipeline, a second pipeline is slidably connected to the interior of the first pipeline, a protection mechanism is mounted on the outer side of the first pipeline and comprises a mounting block, and the mounting block is fixedly connected to the outer side of the upper end of the first pipeline; the upper end of the mounting block is rotatably connected with a plurality of groups of supporting rods, the outer sides of the plurality of groups of supporting rods are fixedly connected with a protective film, and a spraying mechanism is mounted at the top end of the second pipeline. Through the arrangement of the protection mechanism, when the second pipeline stretches out or retracts back, a fixing block can be automatically driven to move, then a supporting rod is driven to be unfolded or folded through a moving rod, a protection film is driven to be unfolded or folded, and when the protection film is unfolded, a user behind a spray head is protected; a physical barrier is provided for a user, and liquid medicine or harmful substances possibly splashed to the body of the user in the spraying process are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sprayers, in particular to a handheld telescopic spray rod for a sprayer. Background Technique

[0002] A sprayer is the abbreviation of spraying equipment. A sprayer is a device that uses the siphon effect to turn liquid medicine or other liquids into a mist and evenly spray them onto other objects. It consists of a device for compressed air, a thin tube, a nozzle, etc. In rural areas, sprayers are indispensable important farm tools for preventing and controlling pests and diseases.

[0003] Chinese Patent CN219894387U discloses a pesticide spray rod with a telescopic function, including an installation tube. One end outer wall of the installation tube is inserted with a telescopic tube, and an installation ring is arranged on the outer wall of the telescopic tube close to the installation tube. A piston ring is arranged on the other side of the installation ring away from the telescopic tube, and a spring groove is opened inside the installation ring. A spring is inserted into the spring groove, and the mutually remote ends of the spring are welded with a limiting rod. A limiting groove is opened on the outer wall of the installation tube close to the limiting rod, and the limiting rod is inserted into the limiting groove by the action of the spring. A rotating groove is opened on one side inside the installation tube. Through the arranged limiting rod, when the limiting rod is pressed, the limiting rod can slide into the spring groove by the action of the spring, so that the telescopic tube and the moving tube can move, enabling the device to be effectively adjusted when facing crops of different heights and improving the practicability of the device.

[0004] However, when the above spray rod sprays, since the water mist is light in weight and easily blown up by the wind, in the case of a headwind, the sprayed water mist mixed with the liquid medicine will be blown towards the user. The liquid medicine itself is toxic. If inhaled or directly contaminated on the skin by the user, it will cause harm to the user's body. The above spray rod lacks a protection device and has poor protection performance, making it difficult to protect the user during spraying. Summary of the Utility Model

[0005] To solve the above technical problems, a handheld telescopic spray rod for a sprayer is provided, and this technical solution solves the problem that it is difficult to protect the user during spraying.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A hand-held telescopic spray rod for a sprayer, comprising a first pipe. A second pipe is slidably connected inside the first pipe. A protection mechanism is installed outside the first pipe. The protection mechanism includes a mounting block. The mounting block is fixedly connected to the outer side of the upper end of the first pipe. Several groups of support rods are rotatably connected to the upper end of the mounting block. A protective film is fixedly connected to the outer sides of the multiple groups of support rods. A spray mechanism is installed at the top end of the second pipe. The spray mechanism includes a rotating shaft. The rotating shaft is rotatably connected to the end of the second pipe through a bearing. One end of the rotating shaft away from the second pipe is fixedly connected to a mounting plate. At least two spray nozzles are fixedly connected to the left side of the mounting plate.

[0008] Preferably, the protection mechanism further includes a fixing block. The fixing block is fixedly installed in the middle of the outer side of the second pipe. Several groups of moving rods are rotatably connected inside the fixing block. One end of the moving rod away from the fixing block is rotatably connected to the middle of the outer side of the support rod.

[0009] Preferably, the spray mechanism further includes a driving motor. The output end of the driving motor is fixedly connected to a driving gear. A driven gear meshing with the driving gear is fixedly connected to the outer side of the rotating shaft.

[0010] Preferably, four elastic rubber balls are fixedly connected to the lower end of the second pipe. Four spherical grooves adapted to the elastic rubber balls are provided on the inner side wall of the first pipe.

[0011] Preferably, a sealing gasket is fixedly installed at the upper end of the first pipe. A handle is fixedly connected to the outer side of the lower end of the first pipe.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting up the protection mechanism, when the second pipe extends or retracts, it can automatically drive the fixing block to move, and then drive the support rods to expand or retract through the moving rods, and further drive the protective film to open or close. When the protective film opens, it can block the liquid medicine sprayed by the spray nozzles, thereby protecting the user behind the spray nozzles, providing a physical barrier for the user, reducing the liquid medicine or harmful substances that may splash onto the user during the spraying process, and thus reducing the risk of injury or poisoning to the operator;

[0013] By setting up the spray mechanism, the rotating shaft can drive the mounting plate to make the spray nozzles rotate and spray, increasing the spraying range of the spray nozzles, improving the spraying efficiency, being able to cover a wider area, eliminating the need to frequently move the spraying equipment, and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2Schematic diagram of the retracted state structure of the protection mechanism of the present utility model;

[0016] Figure 3 Schematic diagram of the structure of the protection mechanism of the present utility model;

[0017] Figure 4 Schematic diagram of the internal structure of the first pipeline and the second pipeline of the present utility model;

[0018] Figure 5 Schematic diagram of the structure of the spray mechanism of the present utility model.

[0019] The reference numerals in the figure are:

[0020] 1. First pipeline; 101. Second pipeline; 102. Handle; 103. Elastic rubber ball; 104. Spherical groove; 105. Sealing gasket;

[0021] 2. Protection mechanism; 201. Support rod; 202. Protection film; 203. Installation block; 204. Fixed block; 205. Moving rod;

[0022] 3. Spray mechanism; 301. Driving motor; 302. Driving gear; 303. Driven gear; 304. Rotating shaft; 305. Installation plate; 306. Nozzle. Specific implementation mode

[0023] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0024] Embodiment 1

[0025] Please refer to Figures 1-5 As shown, a hand-held telescopic spray rod for a sprayer includes a first pipeline 1. A second pipeline 101 is slidably connected inside the first pipeline 1. A protection mechanism 2 is installed outside the first pipeline 1. The protection mechanism 2 includes an installation block 203. The installation block 203 is fixedly connected to the outer side of the upper end of the first pipeline 1. Several groups of support rods 201 are rotatably connected to the upper end of the installation block 203. A protection film 202 is fixedly connected to the outer sides of the multiple groups of support rods 201. A spray mechanism 3 is installed at the top end of the second pipeline 101. The spray mechanism 3 includes a rotating shaft 304. The rotating shaft 304 is rotatably connected to the end of the second pipeline 101 through a bearing. One end of the rotating shaft 304 away from the second pipeline 101 is fixedly connected to an installation plate 305. At least two groups of nozzles 306 are fixedly connected to the left side of the installation plate 305.

[0026] In this solution, the first pipeline 1 is connected to the second pipeline 101. The first pipeline 1 is connected to an external sprayer through a connecting pipe. The second pipeline 101 can slide inside the first pipeline 1, thereby increasing or decreasing the overall length of the second pipeline 101 and the first pipeline 1, increasing the spraying range or facilitating storage. Multiple groups of support rods 201 can be rotated and spread out, thereby driving the protective film 202 to open, blocking the liquid medicine sprayed by the nozzle 306, and protecting the user behind the nozzle 306 to prevent the user from being contaminated by the liquid medicine. The protective film 202 is made of a transparent material, which is convenient for the user to observe. The second pipeline 101 can transport the liquid medicine to the inside of the nozzle 306 for atomization. The rotating shaft 304 can drive the mounting plate 305 to make the nozzle 306 rotate and spray, increasing the spraying range of the nozzle 306 and improving the spraying efficiency.

[0027] Embodiment 2

[0028] Please refer to FIGS. 1-3. The protection mechanism 2 further includes a fixed block 204. The fixed block 204 is fixedly installed in the middle of the outer side of the second pipeline 101. Several groups of moving rods 205 are rotatably connected inside the fixed block 204. One end of the moving rod 205 away from the fixed block 204 is rotatably connected to the middle of the outer side of the support rod 201.

[0029] In this solution, when the second pipeline 101 slides out from inside the first pipeline 1, it can drive the fixed block 204 to slide upward, thereby driving the moving rod 205 to spread out the support rod 201. When the spraying is over, slide the second pipeline 101 into the first pipeline 1, thereby driving the fixed block 204 to slide downward, so that the moving rod 205 drives the support rod 201 to fold in towards the first pipeline 1, causing the protective film 202 to contract and fold, reducing the volume of the protection mechanism 2 and facilitating storage.

[0030] Embodiment 3

[0031] Please refer to Figure 5 As shown, the spraying mechanism 3 further includes a driving motor 301. The output end of the driving motor 301 is fixedly connected to a driving gear 302. A driven gear 303 meshing with the driving gear 302 is fixedly connected to the outer side of the rotating shaft 304.

[0032] In this solution, the driving motor 301 is electrically connected to an external power source. When the driving motor 301 is started, it can drive the driving gear 302 to rotate, thereby driving the driven gear 303 to make the rotating shaft 304 rotate, and then driving the nozzle 306 to rotate and spray, increasing the spraying range.

[0033] Embodiment 4

[0034] Please refer to Figure 1 And Figure 4As shown in the figure, four groups of elastic rubber balls 103 are fixedly connected to the lower end of the second pipe 101, and four spherical grooves 104 adapted to the elastic rubber balls 103 are provided on the inner side wall of the first pipe 1.

[0035] A sealing gasket 105 is fixedly installed at the upper end of the first pipe 1, and a handle 102 is fixedly connected to the outer side of the lower end of the first pipe 1.

[0036] In this solution, through the elastic rubber balls 103 and the spherical grooves 104, the position of the second pipe 101 can be limited after the second pipe 101 extends out, preventing the second pipe 101 from sliding during spraying. The handle 102 facilitates the gripping of the first pipe 1, and the sealing gasket 105 can increase the sealing performance at the connection between the first pipe 1 and the second pipe 101.

[0037] The working principle and usage process of the present utility model are as follows: First, during spraying, the second pipe 101 is extended from the inside of the first pipe 1 to the outside, so that the fixed block 204 slides upward, and then drives the moving rod 205 to cause multiple support rods 201 to expand outward from the first pipe 1, thereby driving the protective film 202 to open into an umbrella shape, which can block the liquid medicine from blowing towards the user. After that, the driving motor 301 is started to drive the driving gear 302 to rotate, and then drives the driven gear 303 to rotate the rotating shaft 304, thereby driving the mounting plate 305 to rotate the nozzle 306 for spraying, increasing the spraying range of the nozzle 306.

[0038] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hand-held telescopic spray rod for a sprayer, comprising a first pipe (1), characterized in that: A second pipe (101) is slidably connected inside the first pipe (1). A protection mechanism (2) is installed outside the first pipe (1). The protection mechanism (2) includes a mounting block (203). The mounting block (203) is fixedly connected to the outer side of the upper end of the first pipe (1). A number of support rods (201) are rotatably connected to the upper end of the mounting block (203). A protection film (202) is fixedly connected to the outer sides of the multiple support rods (201). A spraying mechanism (3) is installed at the top end of the second pipe (101). The spraying mechanism (3) includes a rotating shaft (304). The rotating shaft (304) is rotatably connected to the end of the second pipe (101) through a bearing. One end of the rotating shaft (304) away from the second pipe (101) is fixedly connected to a mounting plate (305). At least two spray nozzles (306) are fixedly connected to the left side of the mounting plate (305).

2. The handheld telescopic spray rod for a sprayer according to claim 1, wherein: The protection mechanism (2) further includes a fixing block (204). The fixing block (204) is fixedly installed at the middle part of the outer side of the second pipe (101). A number of moving rods (205) are rotatably connected inside the fixing block (204). One end of the moving rod (205) away from the fixing block (204) is rotatably connected to the middle part of the outer side of the support rod (201).

3. A hand-held telescopic spray rod for a sprayer according to claim 1, characterized in that: The spraying mechanism (3) further includes a driving motor (301). The output end of the driving motor (301) is fixedly connected to a driving gear (302). A driven gear (303) meshing with the driving gear (302) is fixedly connected to the outer side of the rotating shaft (304).

4. A hand-held telescopic spray rod for a sprayer according to claim 1, characterized in that: Four elastic rubber balls (103) are fixedly connected to the lower end of the second pipe (101). Four spherical grooves (104) adapted to the elastic rubber balls (103) are formed on the inner side wall of the first pipe (1).

5. A hand-held telescopic spray rod for a sprayer according to claim 1, characterized in that: A sealing gasket (105) is fixedly installed at the upper end of the first pipe (1). A handle (102) is fixedly connected to the outer side of the lower end of the first pipe (1).

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