A spraying device of a foldable sprayer

Abstract

The present invention discloses a spraying device of a foldable sprayer, comprising three crossbeams and a hose, wherein each crossbeam is provided with a plurality of spray heads, the three crossbeams are connected in sequence, two adjacent crossbeams are hinged, and a locking mechanism is provided between the two adjacent crossbeams; the hose comprises a main pipe and a branch pipe, the branch pipe is connected to the three crossbeams in series, and the main pipe is connected to the branch pipe at the middle crossbeam. The present invention can be unfolded when spraying pesticides to increase the coverage width, and can be folded up during transportation to reduce the occupied width, and is easy to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of sprayers, and more particularly relates to a spraying device of a foldable sprayer. Background Art

[0002] Existing sprayers include traditional hand pressure sprayers, electric sprayers, gas-oil sprayers, etc., and these sprayers only have one nozzle, which makes them slow and inefficient when applying pesticides in the field.

[0003] Some large farms use mechanized spraying, that is, a farm machine (tractor) carries a medicine box on its back, and a corresponding sprayer is arranged on the farm machine. The sprayer's spray boom is arranged horizontally, and multiple nozzles are arranged above it to achieve simultaneous operation over a large horizontal area and improve spraying efficiency.

[0004] For example, the Chinese patent application number 2020224240370 discloses a crop sprayer for paddy field cultivation, including a mounting beam, movable wheels fixedly installed at both ends of the mounting beam, pushing brackets fixedly installed on the mounting beam near the edges of both ends, handles fixedly installed at the ends of the pushing brackets, a medicine storage box fixedly installed on the mounting beam, a mounting through hole is opened in the mounting beam, a spraying mechanism is fixedly installed at the bottom of the mounting beam, a medicine inlet is fixedly installed on the top of the medicine storage box, a sealing cover is fixedly installed at the end of the medicine inlet, a fixed base is fixedly installed on the bottom of the medicine storage box, a fixed clamping sleeve is fixedly installed on the fixed base, and a fixing screw is fixedly installed on the fixed clamping sleeve.

[0005] The mounting beam of the above patent has multiple nozzles, but the width of the mounting beam is usually fixed, and its width is basically no greater than the width of the agricultural machinery, so as to facilitate carrying and walking. Some use wider beams, but these beams need to be disassembled and assembled in the spraying field, which is very inconvenient. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the present invention provides a sprayer that can be unfolded when spraying pesticides to increase the coverage width, and can be folded up during transportation to reduce the occupied width, which is easy to use.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a spray device of a foldable sprayer, comprising three crossbeams and a hose, each crossbeam being provided with a plurality of nozzles, the three crossbeams being connected in sequence, two adjacent crossbeams being hinged, and a locking mechanism being provided between the two adjacent crossbeams; the hose comprising a main pipe and a branch pipe, the branch pipe being connected in series to the three crossbeams, the main pipe being connected to the branch pipe at the middle crossbeam.

[0008] Furthermore, the cross-section of the crossbeam is C-shaped, and a connecting ear is provided at the connection between the two adjacent crossbeams. The connecting ear extends outward along the opening direction of the crossbeam, and a rotating shaft is provided on the connecting ear. The two adjacent crossbeams are hinged through the connecting ear. The locking mechanism includes a tension spring, which is located on the inner side of the crossbeam, and the two ends of the tension spring are respectively connected to the two adjacent crossbeams.

[0009] Furthermore, the crossbeam includes an upper plate, a lower plate and side plates, the upper plate and the lower plate are respectively located on both sides of the side plate, and the nozzle is connected to the lower plate.

[0010] Furthermore, the lower plate is provided with a plurality of positioning grooves, the positioning grooves pass through the opening direction of the lower plate toward the cross beam, and a clamping plate is provided on the nozzle, the clamping plate includes a front plate, a rear plate and an intermediate plate, the front plate and the rear plate are respectively located on both sides of the intermediate plate, the size of the intermediate plate is smaller than the front plate and the rear plate, the front plate, the rear plate and the intermediate plate constitute a clamping groove, the clamping plate is clamped in the positioning groove, and a fixing part is provided between the clamping plate and the lower plate.

[0011] The fixing part further includes a cross bar and two elastic legs, one end of the elastic leg is connected to the cross bar, and the other end of the elastic leg is provided with a fixing pin. The lower plate is provided with a fixing hole that cooperates with the fixing pin. The cross bar is located at the opening of the positioning groove, and the cross bar is pressed on the clamping plate.

[0012] Furthermore, a clamping leg is provided on the cross bar, and the clamping leg is located on the inner side of the elastic leg. The cross bar and the clamping leg are both located in the clamping groove.

[0013] Furthermore, the fixing pin is provided with an insertion slope.

[0014] Furthermore, the clamping plate is located on the side of the lower plate facing the upper plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The foldable crossbeam can adjust its overall width according to the usage status, making it easy to transport and move, and can increase the coverage area;

[0017] 2. High folding and unfolding efficiency, simple structure, easy to control, and self-locking function;

[0018] 3. The nozzle is easy to disassemble and assemble, making it convenient for maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the present invention;

[0020] Figure 2 is a side view of the present invention;

[0021] Figure 3 It is a three-dimensional structural diagram of the present invention;

[0022] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0023] Figure 5 This is a three-dimensional structural diagram when the nozzle is installed on the lower plate;

[0024] Figure 6 The exploded view of the nozzle, lower plate and clamping plate;

[0025] Figure 7 This is the main view of the coupling plate and the nozzle;

[0026] Figure 8 It is a side view of the coupling plate and the nozzle;

[0027] Figure 9 It is a three-dimensional structural diagram of the matching of the clamping plate and the nozzle.

[0028] Figure numerals: 11, crossbeam; 111, upper plate; 112, side plate; 113, lower plate; 1131, positioning groove; 1132, fixing hole; 21, branch pipe; 22, main pipe; 3, locking mechanism; 31, connecting ear; 32, tension spring; 33, rotating shaft; 4, nozzle; 5, clamping plate; 51, front plate; 52, middle plate; 53, rear plate; 56, clamping groove; 6, fixing part; 61, cross bar; 62, elastic leg; 621, fixing pin; 63, clamping leg. DETAILED DESCRIPTION

[0029] Reference Figures 1 to 9 The embodiment of the spraying device of the foldable sprayer of the present invention is further described.

[0030] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions and positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. Throughout the description of the present invention, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0032] A spray device for a foldable sprayer includes three crossbeams 11 and a hose. Each crossbeam 11 is provided with a plurality of nozzles 4. The three crossbeams 11 are connected in sequence, and two adjacent crossbeams 11 are hinged. A locking mechanism 3 is provided between the two adjacent crossbeams 11. The hose includes a main pipe 22 and a branch pipe 21. The branch pipe 21 is connected in series to the three crossbeams 11. The main pipe 22 is connected to the branch pipe 21 at the middle crossbeam 11.

[0033] like Figure 1 and 3 As shown, the three cross beams 11 in this embodiment form a straight line when unfolded. When folded, the cross beams 11 on both sides are flipped and folded toward the middle cross beam 11, that is, the overall width is greatly reduced.

[0034] The cross-section of the crossbeam 11 is preferably C-shaped in this embodiment, and a connecting ear 31 is provided at the connection between the two adjacent crossbeams 11. The connecting ear 31 extends outward along the opening direction of the crossbeam 11. A rotating shaft 33 is provided on the connecting ear 31. The two adjacent crossbeams 11 are hinged through the connecting ear 31. The locking mechanism 3 includes a tension spring 32. The tension spring 32 is located on the inner side of the crossbeam 11, and the two ends of the tension spring 32 are respectively connected to the two adjacent crossbeams 11.

[0035] like Figure 2 As shown, the crossbeam 11 includes an upper plate 111 , a lower plate 113 and side plates 112 . The upper plate 111 and the lower plate 113 are respectively located on both sides of the side plates 112 . At this time, the branch pipe 21 is preferably fixed on the side plates 112 .

[0036] The two ends of the tension spring 32 and the rotating shaft 33 form a triangular structure. No matter whether the two adjacent beams 11 are in the unfolded or folded state, the tension spring 32 can keep the two beams 11 in the current state, that is, achieve a self-locking state.

[0037] Generally speaking, this spray device is directly fixed on the agricultural machinery. Specifically, the middle crossbeam 11 can be fixed to the agricultural machinery. When the agricultural machinery is moving on the road, the crossbeams 11 on both sides can be flipped and folded to overlap with the middle crossbeam 11. The width of the middle crossbeam 11 is smaller than the width of the agricultural machinery. Figure 3 As shown, when spraying pesticides, the beams 11 on both sides are unfolded by hand. After unfolding, the tension springs 32 are in a stretched state, and the two adjacent beams 11 can remain stable.

[0038] When the crossbeam 11 is folded, the hinge point of two adjacent crossbeams 11 is at the rotation axis 33 of the connecting ear 31, and the turning radius is large, which can prevent the branch pipe 21 from folding excessively. Preferably, a buffer spring is provided on the branch pipe 21.

[0039] In this embodiment, the lower plate 113 is preferably provided with a plurality of positioning grooves 1131, and the positioning grooves 1131 pass through the lower plate 113 in the opening direction toward the cross beam 11. The nozzle 4 is provided with a clamping plate 5, and the clamping plate 5 includes a front plate 51, a rear plate 53 and a middle plate 52. The front plate 51 and the rear plate 53 are respectively located on both sides of the middle plate 52. The size of the middle plate 52 is smaller than the front plate 51 and the rear plate 53. The front plate 51, the rear plate 53 and the middle plate 52 constitute a clamping groove 56. The clamping plate 5 is clamped in the positioning groove 1131, and a fixing part 6 is provided between the clamping plate 5 and the lower plate 113.

[0040] like Figure 5 and 6 As shown, in this embodiment, the clamping plate 5 and the nozzle 4 are fixed as a whole, or the clamping plate 5 can be a part of the nozzle 4. During installation, the clamping plate 5 is inserted inward from the opening of the positioning groove 1131, so that the lower plate 113 at the edge of the positioning groove 1131 is inserted into the clamping groove 56, and then the clamping plate 5 and the lower plate 113 are completely fixed by the fixing member 6.

[0041] The preferred fixing member 6 in this embodiment includes a cross bar 61 and two elastic legs 62, one end of the elastic leg 62 is connected to the cross bar 61, and the other end of the elastic leg 62 is provided with a fixing pin 621, and the lower plate 113 is provided with a fixing hole 1132 that cooperates with the fixing pin 621, and the cross bar 61 is located at the opening of the positioning groove 1131, and the cross bar 61 is pressed on the clamping plate 5.

[0042] In this embodiment, after the clipping plate 5 is placed in the clipping slot 56, the fixing piece 6 is moved inward from the outside of the positioning slot 1131, so that the fixing pin 621 of the elastic leg 62 is inserted into the fixing hole 1132 of the lower plate 113. At this time, the cross bar 61 blocks the outside of the clipping plate 5 (the opening of the positioning slot 1131), which can prevent the clipping plate 5 from falling out of the positioning slot 1131; when disassembling, the fixing pin 621 is removed from the fixing hole 1132, the fixing piece 6 can be removed, and the clipping plate 5 can be taken out smoothly.

[0043] In this embodiment, the cross bar 61 is preferably further provided with a clamping leg 63 , which is located on the inner side of the elastic leg 62 . Both the cross bar 61 and the clamping leg 63 are located in the clamping slot 56 .

[0044] like Figure 7-9As shown, the preferred card slot 56 in this embodiment surrounds the clamping plate 5, and the middle plate 52 is rectangular. At this time, after the lower plate 113 extends into the card slot 56, there is still a large space in the card slot 56 to clamp the clamping leg 63, and the clamping leg 63 then fills the remaining space in the card slot 56 to clamp the clamping plate 5. The specific clamping legs 63 are located on both sides of the card slot 56. At the same time, the cross bar 61 also extends into the card slot 56. The specific cross bar 61 is located on the outward side of the card slot 56, that is, at this time the entire fixing member 6 is firmly fixed and will not shake. The fixing member 6, the lower plate 113 and the clamping plate 5 are in a mutually coordinated and locked relationship.

[0045] In this embodiment, the fixing pin 621 is preferably provided with an insertion bevel, which facilitates the deformation of the clamping leg 63 and its gradual entry into the fixing hole 1132 .

[0046] In this embodiment, the clamping plate 5 is preferably located on the side of the lower plate 113 facing the upper plate 111 .

[0047] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A spraying device of a foldable sprayer, comprising three crossbeams and a hose, each crossbeam being provided with a plurality of spray heads, characterized in that: The three beams are connected in sequence, and two adjacent beams are hinged, and a locking mechanism is provided between the two adjacent beams; the hose includes a main pipe and a branch pipe, and the branch pipe is connected in series with the three beams, and the main pipe is connected to the branch pipe at the middle beam; The cross section of the cross beam is C-shaped, and a connecting ear is provided at the connection of the two adjacent cross beams, and the connecting ear extends outward along the opening direction of the cross beam, and a rotating shaft is provided on the connecting ear. The two adjacent cross beams are hinged through the connecting ear, and the locking mechanism includes a tension spring, and the tension spring is located on the inner side of the cross beam, and the two ends of the tension spring are respectively connected to the two adjacent cross beams. The cross beam includes an upper plate, a lower plate and a side plate, and the upper plate and the lower plate are respectively located on both sides of the side plate. The nozzle is connected to the lower plate, and a plurality of positioning grooves are opened on the lower plate. The positioning groove passes through the lower plate toward the opening direction of the cross beam. A clamping plate is provided on the nozzle, and the clamping plate includes a front plate, a rear plate and an intermediate plate. The front plate and the rear plate The lock frame is constructed by a process of adjusting the size of the lock frame and the control frame, and the lock frame has a plurality of locking plates, each of which is connected to the side panel of the upper and lower panels. The locking plates are constructed of sheets of wood, and the lock frame includes a first end portion and a second end portion. The locking plates are constructed of sheets of wood, and the second end portion is connected to the side panel of the lower panel. The card slot surrounds the card connecting plate, and the middle plate is rectangular. After the lower plate extends into the card slot, there is still a large space in the card slot to clamp the clamping leg. The clamping leg fills the remaining space in the card slot, thereby clamping the card connecting plate.

2. The spraying device of the foldable sprayer according to claim 1, characterized in that: The fixing pin is provided with an inserting inclined surface.

Images