Shielding device for field pesticide effect test

Abstract

The utility model relates to the technical field of pesticide efficacy tests, in particular to a shielding device for field pesticide efficacy tests, which comprises a pesticide spraying pipe, the left side of the pesticide spraying pipe is fixedly connected with a drain pipe with an electric control valve, and the top of the pesticide spraying pipe is fixedly connected with an extension holding rod. A waterproof electric push rod is fixedly mounted at the top of the inner wall of the pesticide spraying pipe, a sealing push plate is fixedly connected to the output end of the waterproof electric push rod, an anti-reflux pipe is fixedly connected to the inner wall of the pesticide spraying pipe, and a connecting upper plate is fixedly connected to the bottom of the pesticide spraying pipe; according to the utility model, the pesticide is discharged through electric pushing in the pesticide spraying tube, the anti-reflux tube structure is additionally arranged to achieve the anti-reflux effect, and the shielding structure which can be electrically controlled to expand outwards is arranged below the anti-reflux tube structure to adaptively and rapidly change the shielding range; and an anti-reflux shielding protection effect in a farmland pesticide spraying process can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of shielding devices for field pesticide efficacy test, belong to pesticide efficacy test technical field. BACKGROUND

[0002] Pesticide will carry out efficacy test before popularization to market, and pesticide efficacy is the toxic effect of pesticide to pest or weed, and the death percentage of pest after pesticide application and the death speed can be used to express insecticide efficacy, and the reduction of disease index and the reduction of damage rate and the reduction percentage of insect population density can be used to express the efficacy of fungicide, and the death percentage of weed after pesticide application can be used to see the efficacy of herbicide, and pesticide efficacy needs to be shielded to field crops during test, to prevent from being influenced by external factors;

[0003] For example, a kind of shielding device for field pesticide efficacy test with patent No.

[0004] The above shielding device can be externally shielded by canvas, but the plants in farmland contact different spray surfaces, so the shielding range needs to be frequently changed, which brings certain adverse effects to actual use, and therefore needs to be improved. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of shielding device for field pesticide efficacy test, and the utility model is discharged pesticide by setting up inside pesticide pipe to be electrically pushed, and the effect of preventing backflow can be played by increasing the structure of anti-backflow pipe, and the shielding structure that can be electrically controlled to expand is arranged below to adaptively and quickly change shielding range, to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of shielding device for field pesticide efficacy test, including spraying pipe, the left side of the spraying pipe is fixedly connected with drain pipe with electric control valve, the top of the spraying pipe is fixedly connected with extension handle, the top of the inner wall of the spraying pipe is fixedly installed with waterproof electric push rod, the output end of the waterproof electric push rod is fixedly connected with sealing push plate, the inner wall of the spraying pipe is fixedly connected with anti-backflow pipe, the bottom of the spraying pipe is fixedly connected with connecting upper plate, the bottom of the connecting upper plate is threadedly connected with connecting lower plate by screw, the surface of the connecting lower plate is rotatably connected with electric telescopic rod by pin shaft seat, one end of the electric telescopic rod is rotatably connected with fixed side plate by pin shaft seat, the surface of the fixed side plate is fixedly connected with waterproof cover cloth.

[0008] Further, the main body of the extension handle is a support bottom rod, the top of the support bottom rod is connected with a locking assembly, and the surface of the locking assembly is connected with a non-slip handle.

[0009] Further, the locking assembly includes a magnetic attraction locking plate and a magnetic attraction locking groove, the magnetic attraction locking plate is fixedly connected to the bottom of the non-slip handle, the magnetic attraction locking groove is formed in the top of the support bottom rod, and the inner wall of the magnetic attraction locking groove and the surface of the magnetic attraction locking plate are magnetically attracted and adapted.

[0010] Further, the inner wall of the anti-backflow pipe is fixedly connected with a limiting rod, the surface of the limiting rod is slidably connected with a sealing ball, the top of the anti-backflow pipe close to the inner wall is fixedly connected with a sealing baffle, and the inner wall of the sealing baffle and the surface of the sealing ball are sealingly abutted.

[0011] Further, the bottom of the anti-backflow pipe close to the inner wall is rotatably connected with a force relief drainage plate through a bearing, and the force relief drainage plate is located directly below the limiting rod.

[0012] Further, the bottom of the anti-backflow pipe is fixedly connected with a duckbill valve, and the composition material of the duckbill valve is butadiene rubber.

[0013] Further, the bottom of the fixed side plate is fixedly connected with a connecting clamping plate, and the bottom of the connecting clamping plate is fixedly installed with an extension guard plate.

[0014] The beneficial effects of the present application are:

[0015] 1. The utility model discloses a waterproof electric push rod on the medicine spraying pipe is controlled to drive the sealing push plate to move, and the sealing push plate stably pushes down the pesticide in the medicine spraying pipe, and stably discharges the anti-backflow through the inside of the anti-backflow pipe, that is, the sealing ball stably slides down on the limiting rod, and rotates the unloading drainage plate to unloading and buffering discharges the pesticide, if the pesticide backflows when plugging, the sealing ball moves and abuts on the sealing baffle, can realize the sealing anti-backflow in the anti-backflow pipe, can play the effect that the pesticide is stably prevented from backflowing and buffering discharging.

[0016] 2. The utility model discloses a lower part of the medicine spraying pipe is connected with the lower plate, and the fixed side plate and the extension guard plate connected with the connecting clamping plate are arranged on the upper plate, which can form the shielding operation during the pesticide spraying process of the lower part of the medicine spraying pipe. According to the size of the sprayed agricultural products, the fixed side plate is moved by starting the electric telescopic rod, and the waterproof sleeve cloth that can be stretched to deform is expanded outward to change the size of the shielding structure at the lower part of the medicine spraying pipe, so that the adjustable shielding protection effect during the pesticide spraying process in the farmland can be realized. DRAWINGS

[0017] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, which is used together with the specific implementation mode of the utility model to explain the utility model, and does not constitute the limitation to the utility model.

[0018] Figure 1 It is the internal structure schematic view of the shielding device for the pesticide efficacy test in the field of the utility model;

[0019] Figure 2 It is the structure schematic view of the fixed side plate in the shielding device for the pesticide efficacy test in the field of the utility model;

[0020] Figure 3 It is the front view sectional view of the anti-backflow pipe in the shielding device for the pesticide efficacy test in the field of the utility model;

[0021] Figure 4 It is the bottom view of the lower connecting plate in the shielding device for the pesticide efficacy test in the field of the utility model;

[0022] Figure 5 It is the enlarged view of A in the shielding device for the pesticide efficacy test in the field of the utility model;

[0023] The figure label: 1, spray pipe; 2, drain pipe; 3, extension handle; 4, waterproof electric push rod; 5, sealing push plate; 6, anti-backflow pipe; 7, connecting upper plate; 8, connecting lower plate; 9, electric telescopic rod; 10, fixed side plate; 11, waterproof sleeve cloth; 12, supporting bottom rod; 13, anti-skid handle; 14, magnetic attraction locking plate; 15, magnetic attraction locking groove; 16, limiting rod; 17, sealing ball; 18, sealing baffle; 19, force relief drainage plate; 20, duckbill valve; 21, connecting clamping plate; 22, extension guard plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Embodiment 1, please refer to Figures 1-5 The present application provides a technical scheme:

[0026] A shielding device for field pesticide efficacy test, comprising a spray pipe 1, the left side of the spray pipe 1 is fixedly connected with a drain pipe 2 with an electric control valve, the top of the spray pipe 1 is fixedly connected with an extension handle 3, the top of the inner wall of the spray pipe 1 is fixedly installed with a waterproof electric push rod 4, the output end of the waterproof electric push rod 4 is fixedly connected with a sealing push plate 5, the inner wall of the spray pipe 1 is fixedly connected with an anti-backflow pipe 6, the bottom of the spray pipe 1 is fixedly connected with a connecting upper plate 7, the bottom of the connecting upper plate 7 is threadedly connected with a connecting lower plate 8 through a screw rod, the surface of the connecting lower plate 8 is rotatably connected with an electric telescopic rod 9 through a pin shaft seat, one end of the electric telescopic rod 9 is rotatably connected with a fixed side plate 10 through a pin shaft seat, and the surface of the fixed side plate 10 is fixedly connected with a waterproof sleeve cloth 11.

[0027] Specifically, as shown in Figures 1-5 The main body of the extension handle 3 is a supporting bottom rod 12, the top of the supporting bottom rod 12 is connected with a locking assembly, and the surface of the locking assembly is connected with an anti-skid handle 13. The locking assembly comprises a magnetic attraction locking plate 14 and a magnetic attraction locking groove 15, the magnetic attraction locking plate 14 is fixedly connected to the bottom of the anti-skid handle 13, the magnetic attraction locking groove 15 is formed in the top of the supporting bottom rod 12, and the inner wall of the magnetic attraction locking groove 15 and the surface of the magnetic attraction locking plate 14 are magnetically attracted and adapted. Through the magnetic attraction connection effect of the magnetic attraction locking groove 15 and the magnetic attraction locking plate 14, different sizes of anti-skid handles 14 can be installed and used on the supporting bottom rod 12.

[0028] Specifically, as shown inFigures 1-5 As shown, the bottom of the anti-backflow pipe 6 is fixedly connected with a duckbill valve 20, and the duckbill valve 20 is made of butadiene rubber, which can play a role of duckbill-shaped one-way discharge of the pesticide.

[0029] Further, the bottom of the fixed side plate 10 is fixedly connected with a connecting clamping plate 21, and the bottom of the connecting clamping plate 21 is fixedly installed with an extension guard plate 22.

[0030] Embodiment 2, please refer to Figures 1-5 The difference between the present embodiment and embodiment 1 is that the inner wall of the anti-backflow pipe 6 is fixedly connected with a limiting rod 16, the surface of the limiting rod 16 is slidingly connected with a sealing ball 17, the top of the anti-backflow pipe 6 close to the inner wall is fixedly connected with a sealing baffle 18, and the inner wall of the sealing baffle 18 and the surface of the sealing ball 17 are sealingly abutted. The bottom of the anti-backflow pipe 6 close to the inner wall is rotatably connected with a force-releasing drainage plate 19 through a bearing, and the force-releasing drainage plate 19 is located directly below the limiting rod 16. The pesticide is stably discharged through the inside of the anti-backflow pipe 6, that is, the sealing ball 17 is stably slid downward on the limiting rod 16, and the pesticide is discharged by rotating and buffering the force-releasing drainage plate 19. If the pesticide is blocked and backflows upward, the sealing ball 17 is moved and abutted on the sealing baffle 18, so that the sealing anti-backflow in the anti-backflow pipe 6 is realized.

[0031] The working principle of the utility model is as follows: in use, the left side of the pesticide spraying pipe 1 is connected with a drainage pipe 2 for external connection of a water supply pipe, and the pesticide is discharged by opening or closing the electric control valve. The pesticide in the pesticide spraying pipe 1 is temporarily stored therein, and the sealing push plate 5 is moved by the waterproof electric push rod 4 to stably push the pesticide in the pesticide spraying pipe 1 downward, and the pesticide is stably discharged through the inside of the anti-backflow pipe 6. That is, the sealing ball 17 is stably slid downward on the limiting rod 16, and the pesticide is discharged by rotating and buffering the force-releasing drainage plate 19. If the pesticide is blocked and backflows upward, the sealing ball 17 is moved and abutted on the sealing baffle 18, so that the sealing anti-backflow in the anti-backflow pipe 6 is realized. The lower part of the pesticide spraying pipe 1 is connected with the upper plate 7 and the lower plate 8, and the fixed side plate 10 and the extension guard plate 22 connected with the connecting clamping plate 21 are added, so that the shielding operation of the pesticide spraying pipe 1 during the pesticide spraying process is formed. According to the experimental spraying of different agricultural materials, the electric telescopic rod 9 is started to drive the fixed side plate 10 to move, the waterproof sleeve cloth 11 is expanded outward by being pulled to change, the shielding structure of the lower part of the pesticide spraying pipe 1 is changed in size, and the anti-backflow shielding protection effect during the pesticide spraying process in the farmland is realized.

[0032] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A shielding device for field pesticide efficacy test, comprising a pesticide spraying pipe (1), characterized in that: The left side of the medicine spraying pipe (1) is fixedly connected with a drainage pipe (2) with an electric control valve, the top of the medicine spraying pipe (1) is fixedly connected with an extended handle (3), the top of the inner wall of the medicine spraying pipe (1) is fixedly installed with a waterproof electric push rod (4), the output end of the waterproof electric push rod (4) is fixedly connected with a sealing push plate (5), the inner wall of the medicine spraying pipe (1) is fixedly connected with an anti-backflow pipe (6), the bottom of the medicine spraying pipe (1) is fixedly connected with a connecting upper plate (7), the bottom of the connecting upper plate (7) is threadedly connected with a connecting lower plate (8) through a screw rod, the surface of the connecting lower plate (8) is rotatably connected with an electric telescopic rod (9) through a pin shaft seat, one end of the electric telescopic rod (9) is rotatably connected with a fixed side plate (10) through a pin shaft seat, and the surface of the fixed side plate (10) is fixedly connected with a waterproof sleeve cloth (11).

2. The shielding device for field pesticide efficacy test according to claim 1, characterized in that: The main body of the extended handle (3) is a supporting bottom rod (12), the top of the supporting bottom rod (12) is connected with a locking assembly, and the surface of the locking assembly is connected with an anti-skid handle (13).

3. The sheltering device for field pesticide efficacy trials according to claim 2, characterized in that: The locking assembly comprises a magnetic attraction locking plate (14) and a magnetic attraction locking groove (15), the magnetic attraction locking plate (14) is fixedly connected to the bottom of the anti-skid handle (13), the magnetic attraction locking groove (15) is formed in the top of the supporting bottom rod (12), and the inner wall of the magnetic attraction locking groove (15) and the surface of the magnetic attraction locking plate (14) are magnetically attracted and clamped.

4. The screening device for field pesticide efficacy test according to claim 1, characterized in that: The inner wall of the anti-backflow pipe (6) is fixedly connected with a limiting rod (16), the surface of the limiting rod (16) is slidably connected with a sealing ball (17), the top of the anti-backflow pipe (6) is fixedly connected with a sealing baffle (18) close to the inner wall, and the inner wall of the sealing baffle (18) and the surface of the sealing ball (17) are sealingly abutted.

5. The screening device for field pesticide efficacy test according to claim 4, characterized in that: The bottom of the anti-backflow pipe (6) is rotatably connected with a force relieving drainage plate (19) close to the inner wall through a bearing, and the force relieving drainage plate (19) is located directly below the limiting rod (16).

6. The screening device for field pesticide efficacy trials of claim 1, wherein: The bottom of the anti-backflow pipe (6) is fixedly connected with a duckbill valve (20), and the composition material of the duckbill valve (20) is butadiene rubber.

7. The screening device for field pesticide efficacy trials of claim 1, wherein: The bottom of the fixed side plate (10) is fixedly connected with a connecting clamping plate (21), and the bottom of the connecting clamping plate (21) is fixedly installed with an extended protection plate (22).

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