Shock absorber for suspension type boom sprayer

Abstract

The invention discloses a shock absorber for a suspension type boom sprayer, and belongs to the technical field of shock absorption equipment. In order to solve the problem that an existing product needs to be supported by auxiliary tools or manually supported when being disassembled, the following technical scheme is provided: the spraying machine comprises a spraying machine main body consisting of a pesticide box bracket, a spraying rod bracket and a pesticide box, the spraying machine body is provided with a damping mechanism used for buffering and damping, a limiting mechanism used for assisting in fixing the spraying rod support and a handrail mechanism used for pushing the spraying machine body. According to the suspension type boom sprayer, the shock absorber body composed of the shock absorption mechanism, the limiting mechanism and the handrail mechanism is additionally arranged on an existing suspension type boom sprayer; therefore, when the suspension type boom sprayer is disassembled, the safety of the suspension type boom sprayer in contact with the ground after the suspension type boom sprayer is separated from the tractor can be guaranteed without the aid of auxiliary tools and manual supporting, so that the disassembly work of products is simplified, the limitation requirement during disassembly of the products is broken through, and manpower resources are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shock-absorbing equipment, and particularly relates to a shock absorber for a suspension type spray boom sprayer. BACKGROUND

[0002] The suspension type spray boom sprayer is a sprayer matched with a tractor for work, can be disassembled and assembled according to operation requirements, and is mainly used for spraying pesticides in dry fields, cotton fields, wheat fields and corn fields to prevent and control pests and diseases. The suspension type spray boom sprayer has high work efficiency, saves time and labor, and can complete the spraying work with the help of one person and a tractor.

[0003] The suspension type spray boom sprayer mainly comprises a medicine box, a medicine box support, a spray boom support, a medicine liquid extraction component and a spraying device loaded on the spray boom support. The medicine box, the spray boom support and the medicine liquid extraction component are assembled on the medicine box support in a rigid connection mode to form an equipment whole. For example, a Chinese patent with the authorization announcement number CN218681477U discloses a suspension type spray boom sprayer, which comprises a medicine box, a spray boom support device, a spray boom support device that can be folded and contracted, a medicine box support, a medicine box and a spray boom support device installed on the medicine box support, and the medicine box support can be hung on an agricultural vehicle. The spraying device has a crop spraying pipe and a weed spraying pipe, and the crop spraying pipe and / or the weed spraying pipe sprays medicine liquid. In addition, the crop spraying pipe and the weed spraying pipe are respectively provided with multiple spraying points with adjustable spacing, and the multiple spraying points are arranged on the spray boom support device.

[0004] The suspension type spray boom sprayer formed by the technical scheme in the above patent document lacks a shock-absorbing and buffering structure, and thus when the suspension type spray boom sprayer is disassembled from the tractor, in order to ensure the integrity of the suspension type spray boom sprayer, the suspension type spray boom sprayer is either supported from the bottom by means of auxiliary equipment to avoid the suspension type spray boom sprayer from falling to the ground under the action of gravity and causing unnecessary damage after being separated from the tractor, or the disassembled suspension type spray boom sprayer is supported by artificial holding. The former needs auxiliary tools in the disassembly process, and the disassembly work has certain limitations. The latter has the risk of falling and the problem of injuring the workers due to the large weight of the metal structure of the main body of the suspension type spray boom sprayer. In addition, the disassembly by artificial holding needs the cooperation of multiple people, consumes a large amount of human resources, and is inconvenient for carrying the disassembled product. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides a shock absorber for a suspension type spray boom sprayer, which comprises a spray machine body composed of a medicine box support, a spray boom support and a medicine box, a shock absorbing mechanism for buffering and absorbing shock, a limiting mechanism for assisting in fixing the spray boom support, and a handle mechanism for pushing the spray machine body.

[0006] To achieve the above object, the present application provides the following technical solutions: A shock absorber for a suspension type spray boom sprayer, comprising a spray machine body composed of a medicine box support, a spray boom support and a medicine box, a shock absorbing mechanism for buffering and absorbing shock, a limiting mechanism for assisting in fixing the spray boom support, and a handle mechanism for pushing the spray machine body, wherein the handle mechanism comprises two parts, which are symmetrically arranged on the left and right sides of the spray machine body. The shock absorbing mechanism comprises a shell, a load plate slidably connected inside the shell, a loading piece for preliminary shock absorption movably connected at each corner of the load plate, a buffer assembly for secondary shock absorption symmetrically arranged inside the shell, a plurality of buffer assemblies respectively linked with corresponding handle mechanisms, symmetric buffer assemblies collectively linked with the same limiting mechanism, and an L-shaped plate symmetrically arranged between the front and back of the symmetric buffer assemblies, and a shock absorbing air bag for tertiary shock absorption symmetrically arranged on the top of the load plate, and a plurality of shock absorbing air bags respectively connected with corresponding L-shaped plates.

[0007] As a further scheme of the present application, the medicine box support is composed of a U-shaped arm, a bottom plate, a frame and a restraint strip, wherein the U-shaped arm comprises two parts, which are symmetrically arranged, the bottom plate is located between the symmetric U-shaped arms, and the two sides of the bottom plate are respectively welded to the bottom inner walls of the corresponding U-shaped arms, the frame is welded to the top ends of the symmetric U-shaped arms, the medicine box is placed inside the medicine box support, the restraint strip is buckled on the top of the medicine box, and the bottom ends of the restraint strip are respectively fixedly connected to the top front and back sides of the frame through bolts.

[0008] As a further scheme of the present application, the spray boom support is composed of a base frame and an adjusting frame, wherein the base frame is welded to the front outer walls of the symmetric U-shaped arms, and the adjusting frame comprises two parts, which are movably connected to the left and right ends of the base frame.

[0009] As a further scheme of the present application, the shell is fixedly connected to the bottom outer walls of the symmetric U-shaped arms through bolts, and a plurality of sliding strips for sliding guide are arranged on the four inner walls of the shell, and the load plate is slidably connected with the plurality of sliding strips. The buffer assembly comprises upper and lower symmetrical slide rails, the upper slide rail is fixedly connected to the inner wall of the top of the shell, and the lower slide rail is fixedly connected to the carrier plate; X-shaped supporting rods for folding are arranged between the two slide rails, each end of the X-shaped supporting rod is movably connected with a sliding block through a pin shaft, and the sliding blocks are slidably connected to the corresponding slide rails. The outer side of the upper slide rail is provided with a guide rod located in the shell, and the two ends of the guide rod are fixedly connected to the front and rear inner walls of the shell; a plurality of moving seats and damping springs II are sleeved on the guide rod, one side of the damping spring II is fixedly connected to the side wall of the moving seat, and the other side of the damping spring II is arranged on the corresponding inner wall of the shell; and the moving seats are fixedly connected to the corresponding sliding blocks on the side close to the upper slide rail.

[0010] As a further scheme of the present application, a groove is formed on the side of each moving seat away from the sliding block, a pull rod is connected to the groove through a movable pin, and the ends of the two pull rods on the same side away from the moving seat are movably connected to an end plate, an L-shaped rod is fixedly connected to the outer side wall of the end plate, and the side of the L-shaped rod away from the end plate penetrates through the corresponding side wall of the shell.

[0011] As a further scheme of the present application, the damping air bag is composed of an air bag main body and an extension bag, the extension bag is integrally sewn on the side wall of the air bag main body, the interiors of the air bag main body and the extension bag are mutually penetrated, the side of the extension bag away from the air bag main body is sealingly attached to the corresponding L-shaped plate, the bottom outer wall of the air bag main body is attached to the top outer wall of the carrier plate, and the two ends of the L-shaped plate are fixedly connected to the corresponding sliding blocks on the lower slide rail.

[0012] As a further scheme of the present application, holes are formed at the four corners of the carrier plate, a plurality of loading members are movably connected to the corresponding holes, the loading member comprises a rod body penetrating through the hole, a load end disc and a limiting end disc are welded to the bottom end and the top end of the rod body, respectively, a damping spring I for buffering and damping is sleeved between the carrier plate and the load end disc, and a universal wheel for displacement adjustment of the spray machine body is installed on the bottom end of the load end disc through bolts.

[0013] As a further scheme of the present application, the handrail mechanism comprises a supporting plate fixedly connected to the outer wall of the side of the U-shaped arm by screws, the top end of the supporting plate is fixedly connected to the bottom outer wall of the frame by screws, a protruding plate is welded to the outer wall of the side of the supporting plate, a receiving groove is formed in the top of the protruding plate, a slot penetrating through the bottom wall of the protruding plate is formed in the bottom wall of the receiving groove, a sliding plate is slidingly connected in the slot, an extension plate is integrally provided on the top of the sliding plate, a toothed plate is fixedly connected to the outer wall of the extension plate, a toothed sleeve is provided on the side of the toothed plate and is in meshing transmission with the toothed plate, a connecting pin is mounted on the toothed sleeve, the two ends of the connecting pin respectively penetrate through the corresponding side walls of the receiving groove, and a U-shaped bracket is sleeved on the connecting pin, and the bottom outer wall of the U-shaped bracket is welded with the handrail main body. A fixing bracket is mounted on the bottom outer wall of the sliding plate by bolts, a vertical plate is fixedly connected to the bottom inner wall of the fixing bracket, a U-shaped piece is movably connected to the vertical plate, a straight rod is fixedly connected to the side end outer wall of the U-shaped piece, a straight plate and a return spring are sleeved on the straight rod, wherein the top end of the straight plate is welded to the bottom outer wall of the supporting plate, one end of the return spring is arranged on the straight plate, and the other end of the return spring is fixedly connected to the side end outer wall of the U-shaped piece, and the end of the straight rod away from the U-shaped piece is fixedly connected to the corresponding L-shaped rod by bolts.

[0014] As a further scheme of the present application, the limiting mechanism comprises a rectangular plate, the rectangular plate is located on the front side of the medicine box support, and left and right symmetrical connecting brackets are arranged on the back outer wall of the rectangular plate, and the sides of the connecting brackets away from the rectangular plate are fixedly connected to the corresponding U-shaped arms by screws. A plurality of clamping plates are slidingly connected to the front outer wall of the rectangular plate, the plurality of clamping plates are arranged in an upper and lower symmetrical manner, and a driven wedge is fixedly connected to the side of each clamping plate away from the other clamping plate, a slope of the driven wedge is slidingly connected with a driving wedge, the back of the driving wedge is fixedly connected with a round rod, the end of the round rod away from the driving wedge penetrates through the rectangular plate, and the round rod and the driving wedge are jointly connected with an L-shaped connecting plate.

[0015] As a further scheme of the present application, a horizontal plate is welded to the rear end of the L-shaped connecting plate, left and right symmetrical inclined grooves are formed in the horizontal plate, displacement plates are slidingly connected in the inclined grooves, and the ends of the plurality of displacement plates away from the horizontal plate are fixedly connected to the corresponding L-shaped rods.

[0016] Compared with the prior art, the present application has the following advantages: 1. By adding a shock absorber main body composed of a damping mechanism, a limiting mechanism and a handrail mechanism to the existing suspension type spray boom sprayer, the safety of the suspension type spray boom sprayer when contacting the ground after being separated from the tractor can be ensured without the need for auxiliary tools and manual support when the suspension type spray boom sprayer is disassembled, thereby not only simplifying the disassembly work of the product, breaking the limitation requirement of the product disassembly, but also reducing the operation burden of the workers and saving human resources.

[0017] 2、Through the setting of the damping mechanism, further when the suspension type spray boom sprayer is separated from the tractor and contacts the ground, the multiple damping structures are used to buffer the impact force when the product falls, so as to protect the safety of the product after being separated from the tractor, avoid the loosening and damage of other structures in the product under the impact force when it falls, and prolong the service life of the product.

[0018] 3、Through the setting of the limiting mechanism, the spray boom support on the suspension type spray boom sprayer is assisted and limited when the product contacts the ground after being disassembled, so as to protect the stability of the spray boom support after being folded and placed, avoid the swinging problem of the spray boom support due to bumping during the carrying of the product, and affect the convenient carrying of the product.

[0019] 4、The damping mechanism is provided with a universal wheel, and further, under the cooperation of the handrail mechanism, when the product is disassembled and falls on the ground, the handrails in the handrail mechanism are unfolded, and the universal wheel is used to realize the convenient carrying and moving of the product. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective structure diagram of a shock absorber for a suspension type spray boom sprayer Figure 1 ; Figure 2 It is a bottom view structure diagram of Figure 1 ; Figure 3 It is a perspective structure diagram of a shock absorber for a suspension type spray boom sprayer Figure 2 ; Figure 4 It is a shock absorber main body structure diagram of Figure 1 ; Figure 5 It is a partial sectional view structure diagram of Figure 4 ; Figure 1 Figure 6 It is a partial sectional view structure diagram of Figure 4 ; Figure 2 Figure 7 It is a bottom view structure diagram of Figure 4 ; Figure 8 It is an A place local structure enlarged diagram of Figure 6 ; Figure 9 It is a handrail mechanism partial sectional view structure diagram of Figure 4 ; Figure 10 It is a bottom view structure diagram of Figure 9 ; Figure 11 It is a B place local structure enlarged diagram of Figure 9 ;​​ Figure 12 For Figure 10 The local structure of C is enlarged and shown schematically. Figure 13 For Figure 4 The limiting mechanism structure diagram is shown schematically. Figure 14 For Figure 13 The bottom structure diagram is shown schematically. Figure 15 For Figure 6 The carrier plate and the loading structure diagram is shown schematically.

[0021] In the figure: 1, medicine box support; 11, U-shaped arm; 12, bottom plate; 13, frame; 14, restraint strip; 2, spray rod support; 21, base; 22, adjusting frame; 3, medicine box; 4, damping mechanism; 41, shell cover; 42, carrier plate; 43, buffer assembly; 431, sliding rail; 432, X-shaped support rod; 433, guide rod; 434, moving seat; 435, pull rod; 436, end plate; 437, L-shaped rod; 44, damping air bag; 441, air bag main body; 442, extension bag; 45, L-shaped plate; 46, loading; 461, rod body; 462, carrier end disc; 463, limiting end disc; 5, handrail mechanism; 51, carrier plate; 52, convex plate; 53, sliding plate; 54, extension plate; 55, toothed plate; 56, toothed sleeve; 57, handrail body; 58, fixing frame; 59, vertical plate; 510, U-shaped piece; 511, straight rod; 6, limiting mechanism; 61, rectangular plate; 62, connecting frame; 63, clamping plate; 64, driven wedge; 65, driving wedge; 66, round rod; 67, L-shaped connecting plate; 68, cross plate; 69, displacement plate. DETAILED DESCRIPTION

[0022] Please refer to Figures 1-3 In the embodiment of the present application, a damping device for a suspension type spray rod sprayer includes a sprayer body composed of a medicine box support 1, a spray rod support 2, and a medicine box 3. The sprayer body is assembled with a tractor and used for spraying medicine on field crops.

[0023] The medicine box support 1 is composed of U-shaped arms 11, a bottom plate 12, a frame 13, and a restraint strip 14. The U-shaped arms 11 include two symmetrical arms. The bottom plate 12 is located between the symmetrical U-shaped arms 11, and the two sides of the bottom plate 12 are respectively welded to the inner walls of the bottoms of the corresponding U-shaped arms 11. The frame 13 is welded to the top ends of the symmetrical U-shaped arms 11. The symmetrical U-shaped arms 11 and the bottom plate 12 disposed at the bottom jointly form a frame body for carrying the medicine box 3. The medicine box 3 is placed inside the medicine box support 1. The frame 13 further provides side restraint for the medicine box 3 placed on the frame body, avoiding the medicine box 3 from falling off due to jolting.

[0024] The restraint strip 14 is buckled on the top of the medicine box 3, and the bottom ends of the restraint strip 14 are fixedly connected to the top front and rear sides of the frame body 13 by bolts. The arrangement of the restraint strip 14 makes the medicine box 3 arranged on the frame body have a top restraint, further guaranteeing the stability of the loading of the medicine box 3.

[0025] The spray rod support 2 is composed of a base frame 21 and adjusting frames 22. The base frame 21 is welded to the front outer wall of the symmetrical U-shaped arm 11. The adjusting frames 22 are movably connected to the left and right ends of the base frame 21. The movable connection of the two adjusting frames 22 on the base frame 21 enables them to be unfolded during use, thereby realizing large-area spraying of crop liquid and improving the efficiency of liquid spraying, and they can also be folded for storage.

[0026] Please refer to Figure 4 In the embodiment of the present application, the spray machine body is provided with a damping mechanism 4 for buffering and damping, a limiting mechanism 6 for assisting in fixing the spray rod support 2, and a handle mechanism 5 for moving the spray machine body. The damping mechanism 4, the limiting mechanism 6, and the handle mechanism 5 jointly constitute a shock absorber body, thereby buffering and damping the impact force received by the spray machine body when it falls to the ground during disassembly. The handle mechanism 5 includes two handle mechanisms symmetrically arranged on the left and right sides of the spray machine body. The loading of the two handle mechanisms 5 on the spray machine body realizes further loading of the medicine box 3 in the frame body, so that the bottom of the medicine box 3 can be uniformly stressed after being filled with medicine, thereby improving the stability of loading and guaranteeing the service life of the medicine box 3.

[0027] Please refer to Figures 5-7 In the embodiment of the present application, the damping mechanism 4 includes a shell cover 41, and a load plate 42 is slidably connected inside the shell cover 41. A plurality of loading pieces 46 for preliminary damping are movably connected to the four corners of the load plate 42. The arrangement of the plurality of loading pieces 46 at the four corners of the load plate 42 guarantees uniform buffering when the load plate 42 is subjected to an impact force.

[0028] The inside of the shell cover 41 is symmetrically provided with a plurality of buffering assemblies 43 for secondary damping. The plurality of buffering assemblies 43 are respectively linked with corresponding handle mechanisms 5. The linkage between the buffering assemblies 43 and the handle mechanisms 5 enables the handle mechanisms 5 to move synchronously when the buffering assemblies 43 move. The symmetric buffering assemblies 43 are jointly linked to the same limiting mechanism 6. The connection between the buffering assemblies 43 and the limiting mechanism 6 also enables the limiting mechanism 6 to move synchronously when the buffering assemblies 43 move, thereby realizing stable limiting and locking of the adjusting frames 22 in the spray rod support 2.

[0029] The L-shaped plates 45 are symmetrically arranged between the symmetric buffer assemblies 43. The shock-absorbing air bags 44 for three times of shock absorption are symmetrically arranged on the top of the carrier plate 42. The shock-absorbing air bags 44 are respectively connected with the corresponding L-shaped plates 45. The assembling mode that the buffer assemblies 43 are connected with the shock-absorbing air bags 44 through the L-shaped plates 45 enables the buffer assemblies 43 to drive the L-shaped plates 45 to displace during movement, thereby extruding the shock-absorbing air bags 44, so that the shock-absorbing air bags 44 are full, and high-efficiency shock absorption effect is realized.

[0030] The shell cover 41 is fixedly connected to the bottom outer wall of the symmetric U-shaped arm 11 by bolts. Two sliding strips for sliding guidance are arranged on each of the four inner walls of the shell cover 41, and the carrier plate 42 is slidingly connected with the sliding strips. The two sliding strips on each inner wall are symmetrically arranged, and the sliding connection between the carrier plate 42 and the sliding strips guarantees the stability of the up-down movement of the carrier plate 42.

[0031] Please refer to Figure 6 and Figure 8 In the embodiment of the present application, the buffer assembly 43 comprises the upper and lower symmetric sliding rails 431. The upper sliding rail 431 is fixedly connected to the top inner wall of the shell cover 41, and the lower sliding rail 431 is fixedly connected to the carrier plate 42. The assembling mode of the sliding rails 431 on the shell cover 41 and the carrier plate 42 is various, for example, welding, rivet fixing and bolt fixing, and in the embodiment, the welding fixing mode is adopted for assembling.

[0032] The X-shaped support rod 432 for folding is arranged between the two sliding rails 431. The X-shaped support rod 432 is movably connected with the sliding blocks at each end through a pin shaft, and the sliding blocks are slidingly connected with the corresponding sliding rails 431. The X-shaped support rod 432 is composed of two support rods which are staggered with each other and movably connected with a positioning pin at the center, so that the X-shaped support rod 432 can be folded around the positioning pin. The X-shaped support rod 432 is folded, and the sliding blocks at the ends thereof are slidingly displaced on the corresponding sliding rails 431.

[0033] The outer side of the upper sliding rail 431 is provided with the guide rod 433 located inside the shell cover 41. The two ends of the guide rod 433 are fixedly connected to the front and rear inner walls of the shell cover 41. The guide rod 433 is arranged at the side of the sliding rail 431, so as not to hinder the displacement movement of the sliding block on the sliding rail 431.

[0034] The guiding rod 433 is sleeved with a plurality of moving seats 434 and damping springs two. One side of the damping springs two is fixedly connected to the side wall of the moving seat 434, and the other side of the damping springs two is arranged on the corresponding inner wall of the shell 41. The plurality of moving seats 434 are fixedly connected to the corresponding sliding blocks on the side close to the upper slide rail 431. The damping springs two arranged on the moving seat 434 provide a buffering effect when the moving seat 434 displaces with the sliding block, thereby providing a secondary damping effect for the product.

[0035] Each moving seat 434 is provided with a groove on the side away from the sliding block, and a pull rod 435 is connected in the groove through a movable pin. The ends of the two pull rods 435 on the same side away from the moving seat 434 are movably connected to an end plate 436. The pull rod 435 and the end plate 436 are movably connected through a metal pin, thereby adjusting the displacement of the end plate 436 during the movement of the pull rod 435. An L-shaped rod 437 is fixedly connected to the outer side wall of the end plate 436, and the side of the L-shaped rod 437 away from the end plate 436 penetrates through the corresponding side wall of the shell 41. The end face of the L-shaped rod 437 is in a rectangular structure, thereby providing support and guidance for the L-shaped rod 437 when it penetrates through the corresponding side wall of the shell 41, so as to ensure the position stability of the L-shaped rod 437 and the end plate 436.

[0036] The damping air bag 44 is composed of an air bag main body 441 and an extension bag 442. The extension bag 442 is integrally sewn on the side wall of the air bag main body 441, and the interiors of the air bag main body 441 and the extension bag 442 are mutually penetrated. After the interiors of the air bag main body 441 and the extension bag 442 are mutually penetrated, the gases filled in the interiors are in the same space, and the gases in the damping air bag 44 are in an unsaturated state under normal conditions, thereby realizing the saturation damping effect of the gases in the interior when the L-shaped plate 45 extrudes the extension bag 442 to move close to the air bag main body 441.

[0037] The side of the extension bag 442 away from the air bag main body 441 is sealingly pasted on the corresponding L-shaped plate 45. The bottom outer wall of the air bag main body 441 is pasted on the top outer wall of the carrier plate 42. The extension bag 442 of the damping air bag 44 is pasted on the L-shaped plate 45, and the air bag main body 441 is pasted on the top outer wall of the carrier plate 42, so that the damping air bag 44 can be conveniently disassembled, replaced and maintained. The two ends of the plurality of L-shaped plates 45 are fixedly connected to the corresponding sliding blocks on the lower slide rail 431. The assembly of the L-shaped plate 45 on the corresponding sliding block enables it to move synchronously with the movement of the buffer assembly 43.

[0038] Please refer to Figure 6 and Figure 15In the embodiment of the present application, the four corners of the carrier plate 42 are provided with holes, and a plurality of loading members 46 are movably connected in the corresponding holes respectively. The loading member 46 comprises a rod body 461 penetrating the hole, and the bottom end and the top end of the rod body 461 are respectively welded with a load end disc 462 and a limiting end disc 463. The load end disc 462 is arranged to facilitate the assembly of the universal wheel, and the limiting end disc 463 is assembled to avoid the rod body 461 from being separated from the hole. The shock-absorbing spring I is sleeved between the carrier plate 42 and the load end disc 462 for buffering and shock absorption. The bottom end of the load end disc 462 is provided with a universal wheel for displacement adjustment of the spray machine body through a bolt. When the spray machine body falls to the ground after disassembly, the universal wheel contacts the ground and conducts the impact force, and the shock-absorbing spring I preliminarily buffers and shock-absorbs the impact force.

[0039] Please refer to Figure 5 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12 In the embodiment of the present application, the handrail mechanism 5 comprises a supporting plate 51 fixedly connected to the side outer wall of the U-shaped arm 11 by a screw. The top end of the supporting plate 51 is fixedly connected to the bottom outer wall of the frame 13 by a screw. The assembly of the supporting plate 51 on the medicine box support 1 enables it to be conveniently disassembled and maintained.

[0040] A lug plate 52 is welded on the side outer wall of the supporting plate 51, and a containing groove is formed in the top of the lug plate 52. A plug slot penetrating the bottom shell wall of the lug plate 52 is formed in the bottom shell wall of the containing groove. A sliding plate 53 is slidably connected in the plug slot. The sliding connection of the sliding plate 53 in the plug slot ensures the stability of the movement of the sliding plate 53.

[0041] The top of the sliding plate 53 is integrally provided with an extension plate 54, and the outer wall of the extension plate 54 is fixedly connected with a toothed plate 55. The side edge of the toothed plate 55 is provided with a toothed sleeve 56 engaged with it for transmission. Further, the movement of the sliding plate 53 drives the displacement of the extension plate 54, synchronously realizing the movement of the toothed plate 55, and the toothed sleeve 56 rotates accordingly.

[0042] A connecting pin is installed on the toothed sleeve 56, the two ends of the connecting pin respectively penetrate the corresponding side walls of the containing groove, and a U-shaped bracket is sleeved on the connecting pin, and a handrail body 57 is welded on the bottom outer wall of the U-shaped bracket. The toothed sleeve 56 rotates around the connecting pin as the center, thereby driving the U-shaped bracket to move, so that the handrail body 57 is turned out, facilitating manual support.

[0043] The bottom outer wall of the sliding plate 53 is provided with a fixing frame 58 through bolted connection. The vertical section of the fixing frame 58 is in L-shaped structure. The bottom inner wall of the fixing frame 58 is fixedly connected with a vertical plate 59, the vertical plate 59 is provided with an inclined groove, a column body is slidably connected in the inclined groove, and a U-shaped piece 510 is sleeved on the column body. In this way, the lifting adjustment of the fixing frame 58 is realized through the sliding of the column body in the inclined groove during the displacement of the U-shaped piece 510, so as to drive the displacement of the sliding plate 53.

[0044] The side end outer wall of the U-shaped piece 510 is fixedly connected with a straight rod 511, and a straight plate and a reset spring are sleeved on the straight rod 511. The top end of the straight plate is welded to the bottom outer wall of the supporting plate 51. One end of the reset spring is arranged on the straight plate, and the other end of the reset spring is fixedly connected to the side end outer wall of the U-shaped piece 510. The arrangement of the reset spring and the straight plate realizes the limiting and guiding of the movement track of the straight rod 511, so as to guarantee the stability of the movement of the straight rod 511. The arrangement of the reset spring guarantees that the supporting handle structure 5 is in the initial state without external force. The end, away from the U-shaped piece 510, of the straight rod 511 is fixedly connected to the corresponding L-shaped rod 437 through bolted connection. The convenient assembly between the straight rod 511 and the L-shaped rod 437 facilitates the assembly of the staff.

[0045] Please refer to Figure 5 、 Figure 13 and Figure 14 , in the embodiment of the application, the limiting mechanism 6 comprises a rectangular plate 61 located on the front side of the medicine box support 1. The back outer wall of the rectangular plate 61 is provided with a connecting frame 62 symmetrically arranged on the left and right sides, and the side, away from the rectangular plate 61, of the connecting frame 62 is fixedly connected to the corresponding U-shaped arm 11 through screws. The rectangular plate 61 is conveniently assembled to the U-shaped arm 11 through the connecting frame 62, realizing the convenience of disassembly and assembly.

[0046] The front outer wall of the rectangular plate 61 is slidably connected with a plurality of clamping plates 63. The clamping plate 63 is provided with two semicircular recesses for clamping and fixing the corresponding adjusting frame 22 in the spray rod support 2. In order to guarantee the stability of clamping the adjusting frame 22, a friction pad is pasted on the inner wall of the semicircular recess, so as to improve the stability of clamping.

[0047] The plurality of clamping plates 63 are symmetrically arranged upward and downward, and the side away from each other of the plurality of clamping plates 63 is fixedly connected with a driven wedge 64. The adjusting frame 22 is located between the two clamping plates 63 symmetrically arranged upward and downward, thereby guaranteeing the unfolding requirement of the adjusting frame 22. The inclined surface of the driven wedge 64 is slidably connected with a driving wedge 65, the back surface of the driving wedge 65 is fixedly connected with a round rod 66, one end of the round rod 66 away from the driving wedge 65 penetrates through the rectangular plate 61, and the round rod 66 is jointly connected with an L-shaped connecting plate 67. The inclined surface of the driven wedge 64 is provided with a T-shaped sliding groove, and the inclined surface of the driving wedge 65 is integrally provided with a T-shaped sliding strip, the T-shaped sliding strip and the T-shaped sliding groove are slidably connected, thereby guaranteeing that the driving wedge 65 drives the driven wedge 64 to displace synchronously when the driving wedge 65 moves.

[0048] The rear end of the L-shaped connecting plate 67 is welded with a horizontal plate 68, the horizontal plate 68 is symmetrically provided with an inclined groove left and right. The inclined groove is slidably connected with a convex rod, and the top end of the convex rod is fixedly connected with a displacement plate 69. The ends of the plurality of displacement plates 69 away from the horizontal plate 68 are respectively fixedly connected to the corresponding L-shaped rods 437. Then the corresponding displacement plates 69 are driven to displace synchronously in the process of displacement adjustment of the L-shaped rods 437.

[0049] The working principle of the present application is: when the spraying machine body needs to be disassembled from the tractor, first adjust other parts in the spraying machine body to the initial state, especially reset each adjusting frame 22 in the spray rod support 2 to the initial state of the base frame 21. Then the staff directly disassembles the spraying machine body, only needs to guarantee that the falling spraying machine body does not tilt during disassembly.

[0050] And the spraying machine body directly falls to the ground after being separated from the tractor, when the spraying machine body contacts the ground, the plurality of universal wheels arranged on the damping mechanism 4 first contact the ground. Then the impact force received by the universal wheels is buffered by the damping mechanism 4, thereby reducing the impact force received by the spraying machine body when falling to the ground, prolonging the service life thereof.

[0051] When the damping mechanism 4 is working, the universal wheels loaded on the loading part 46 contact the ground, then the impact force received is conducted, so that the rod body 461 in the loading part 46 moves upward and compresses the damping spring, thereby achieving the preliminary buffering effect.

[0052] When the loading part 46 is forced to work, the carrier plate 42 is driven to move upward. The movement of the carrier plate 42 drives the buffering assembly 43 arranged thereon to move, thereby achieving the secondary buffering effect.

[0053] When the buffering assembly 43 is forced to move, with the upward movement of the carrier plate 42, the X-shaped supporting rod 432 in the buffering assembly 43 folds and moves, thereby making the slider on the sliding rail 431 in the buffering assembly 43 displace forward and backward.

[0054] The upper slider drives the moving seat 434 to move synchronously on the guide rod 433 during the movement, thereby extruding the corresponding damping spring II to achieve the effect of secondary damping. The movement of the moving seat 434 causes the pull rod 435 connected thereto to move, and the end plate 436 connected to the pull rod 435 to displace, thereby pulling the L-shaped rod 437 to move.

[0055] The lower slider drives the symmetrically arranged L-shaped plate 45 to move correspondingly during the movement, thereby extruding the extension bag 442 in the damping air bag 44, so as to improve the fullness of the gas in the air bag body 441. When the air bag body 441 is full, the top of the air bag body 441 contacts the inner wall of the top of the shell 41 during the upward movement of the carrier plate 42, thereby achieving the third buffering and damping of the impact force generated when the spray machine body falls to the ground, so as to ensure the safety of the spray machine body when it falls to the ground.

[0056] The movement of the L-shaped rod 437 in the buffer assembly 43 drives the handrail structure 5 at the side position and the limiting mechanism 6 arranged at the front side to move synchronously.

[0057] When the L-shaped rod 437 displaces, the straight rod 511 is pulled to move synchronously, thereby compressing the return spring. The straight rod 511 drives the U-shaped piece 510 to displace during the movement, and the displacement of the U-shaped piece 510 on the vertical plate 59 drives the fixed frame 58 to move downward with the displacement of the U-shaped piece 510, so that the sliding plate 53 moves downward synchronously. The displacement of the sliding plate 53 drives the extension plate 54 to move synchronously, thereby driving the toothed plate 55 to move. The engagement transmission between the toothed plate 55 and the toothed sleeve 56 drives the connecting pin to move, so as to realize the overturning movement of the handrail body 57 driven by the U-shaped frame. The handrail body 57 is turned out of the accommodating groove, thereby facilitating the pushing and carrying of the disassembled spray machine body on the ground by the staff.

[0058] The displacement plate 69 in the limiting mechanism 6 moves synchronously during the movement of the L-shaped rod 437, thereby extruding and moving the horizontal plate 68 under the action of the inclined groove of the horizontal plate 68. The movement of the horizontal plate 68 drives the L-shaped connecting plate 67 to move, thereby causing the synchronous movement of each round rod 66 connected to the L-shaped connecting plate 67, extruding the corresponding driving wedge 65. The displacement adjustment of the driving wedge 65 extrudes the driven wedge 64, so as to realize the mutual approach of the corresponding clamping plates 63 connected to each driven wedge 64, complete the clamping and locking of each adjusting frame 22 in the spray rod support 2, and further ensure the stability of the folded spray rod support 2.

[0059] The above merely illustrates the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes according to the technical scheme and the inventive concept of the present application within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A shock absorber for a suspended boom sprayer, comprising a sprayer body consisting of a medicine tank bracket (1), a boom bracket (2), and a medicine tank (3), characterized in that: The main body of the sprayer is provided with a shock-absorbing mechanism (4) for buffering and shock absorption, a limiting mechanism (6) for assisting in fixing the spray boom bracket (2) and a handrail mechanism (5) for pushing the main body of the sprayer. The handrail mechanism (5) includes two parts, which are symmetrically arranged on both sides of the main body of the sprayer. The shock absorption mechanism (4) includes a housing (41), a carrier plate (42) is slidably connected inside the housing (41), and loading components (46) for initial shock absorption are movably connected at the four corners of the carrier plate (42). Buffer components (43) for secondary shock absorption are symmetrically arranged inside the housing (41). Multiple buffer components (43) are linked with corresponding handrail mechanisms (5). The symmetrical buffer components (43) are linked together on the same limiting mechanism (6). L-shaped plates (45) are symmetrically arranged between the symmetrical buffer components (43). Shock-absorbing airbags (44) for tertiary shock absorption are symmetrically arranged on the top of the carrier plate (42). Multiple shock-absorbing airbags (44) are connected to corresponding L-shaped plates (45).

2. The shock absorber for a suspended boom sprayer according to claim 1, characterized in that, The medicine box support (1) is composed of a U-shaped arm (11), a base plate (12), a frame (13), and a constraint strip (14). There are two U-shaped arms (11) arranged symmetrically on the left and right. The base plate (12) is located between the symmetrical U-shaped arms (11), and the two sides of the base plate (12) are respectively welded to the bottom inner wall of the corresponding U-shaped arm (11). The frame (13) is welded to the top of the symmetrical U-shaped arm (11). The medicine box (3) is placed inside the medicine box support (1). The constraint strip (14) is pressed against the top of the medicine box (3), and the bottom two ends of the constraint strip (14) are respectively fixed to the front and rear sides of the top of the frame (13) by bolts.

3. A shock absorber for a suspended boom sprayer according to claim 2, characterized in that, The spray bar bracket (2) is composed of a base frame (21) and an adjustment frame (22). The base frame (21) is welded to the front outer wall of the symmetrical U-shaped arm (11). There are two adjustment frames (22), which are movably connected to the left and right ends of the base frame (21).

4. A shock absorber for a suspended boom sprayer according to claim 2, characterized in that, The housing (41) is fixedly connected to the bottom outer wall of the symmetrical U-shaped arm (11) by bolts. Multiple sliding guides are provided on the four inner walls of the housing (41). The carrier plate (42) is slidably connected to the multiple sliding guides. The buffer assembly (43) includes slide rails (431) arranged symmetrically on the upper and lower sides. The upper slide rail (431) is fixedly connected to the top inner wall of the shell (41), and the lower slide rail (431) is fixedly connected to the carrier plate (42). An X-shaped support rod (432) for folding is provided between the two slide rails (431). Each end of the X-shaped support rod (432) is movably connected to a slider through a pin. Multiple sliders are slidably connected to the corresponding slide rails (431). The slide rail (431) above is provided with a guide rod (433) located inside the housing (41) on the outside. The two ends of the guide rod (433) are respectively fixedly connected to the front and rear inner walls of the housing (41). Multiple movable seats (434) and shock-absorbing springs are sleeved on the guide rod (433). One side of the shock-absorbing springs is fixedly connected to the side wall of the movable seats (434), and the other side of the shock-absorbing springs is set on the corresponding inner wall of the housing (41). The side of the multiple movable seats (434) near the slide rail (431) above is respectively fixedly connected to the corresponding slider.

5. A shock absorber for a suspended boom sprayer according to claim 4, characterized in that, Each of the movable seats (434) has a groove on the side away from the slider. A pull rod (435) is connected to the groove through a movable pin. The ends of the two pull rods (435) on the same side away from the movable seat (434) are movably connected to an end plate (436). An L-shaped rod (437) is fixedly connected to the outer wall of the end plate (436). The side of the L-shaped rod (437) away from the end plate (436) penetrates the corresponding side wall of the housing (41).

6. A shock absorber for a suspended boom sprayer according to claim 4, characterized in that, The shock-absorbing airbag (44) is composed of an airbag body (441) and an extension bag (442). The extension bag (442) is integrally sewn onto the side wall of the airbag body (441), and the interiors of the airbag body (441) and the extension bag (442) are interconnected. The side of the extension bag (442) away from the airbag body (441) is sealed and pasted onto the corresponding L-shaped plate (45). The bottom outer wall of the airbag body (441) is pasted onto the top outer wall of the carrier plate (42). The two ends of the multiple L-shaped plates (45) are respectively fixedly connected to the corresponding sliders on the slide rail (431) below.

7. A shock absorber for a suspended boom sprayer according to claim 5, characterized in that, Holes are provided at the four corners of the carrier plate (42), and multiple loading components (46) are movably connected to the corresponding holes. Each loading component (46) includes a rod (461) that passes through the hole. The bottom and top ends of the rod (461) are respectively welded with a loading end plate (462) and a limiting end plate (463). A shock-absorbing spring is sleeved between the carrier plate (42) and the loading end plate (462) for buffering and shock absorption. The bottom end of the loading end plate (462) is bolted with a universal wheel for adjusting the displacement of the sprayer body.

8. A shock absorber for a suspended boom sprayer according to claim 1, characterized in that, The handrail mechanism (5) includes a support plate (51) fixedly connected to the outer wall of the side of the U-shaped arm (11) by screws. The top of the support plate (51) is fixedly connected to the bottom outer wall of the frame (13) by screws. A protruding plate (52) is welded to the outer wall of the side of the support plate (51). A receiving groove is opened at the top of the protruding plate (52). A slot is opened on the bottom shell wall of the receiving groove, which penetrates the bottom shell wall of the protruding plate (52). A sliding plate (53) is slidably connected in the slot. An extension plate (54) is integrally provided at the top of the sliding plate (53). A toothed plate (55) is fixedly connected to the outer wall of the extension plate (54). A toothed sleeve (56) is provided on the side of the toothed plate (55) for meshing and transmission. A connecting pin is installed on the toothed sleeve (56). The two ends of the connecting pin penetrate the corresponding side wall of the receiving groove respectively. A U-shaped frame is sleeved on the connecting pin. A handrail body (57) is welded to the bottom outer wall of the U-shaped frame. A fixing frame (58) is bolted to the bottom outer wall of the slide plate (53). A vertical plate (59) is fixedly connected to the bottom inner wall of the fixing frame (58). A U-shaped part (510) is movably connected to the vertical plate (59). A straight rod (511) is fixedly connected to the side outer wall of the U-shaped part (510). A straight plate and a return spring are sleeved on the straight rod (511). The top of the straight plate is welded to the bottom outer wall of the support plate (51). One end of the return spring is set on the straight plate, and the other end of the return spring is fixedly connected to the side outer wall of the U-shaped part (510). The end of the straight rod (511) away from the U-shaped part (510) is fixedly connected to the corresponding L-shaped rod (437) by bolts.

9. A shock absorber for a suspended boom sprayer according to claim 5, characterized in that, The limiting mechanism (6) includes a rectangular plate (61), which is located on the front side of the medicine box support (1). A connecting frame (62) is symmetrically arranged on the outer wall of the back of the rectangular plate (61). The side of the connecting frame (62) away from the rectangular plate (61) is fixedly connected to the corresponding U-shaped arm (11) by screws. Multiple clamping plates (63) are slidably connected to the front outer wall of the rectangular plate (61). The multiple clamping plates (63) are arranged symmetrically in the upper and lower parts. A driven wedge (64) is fixedly connected to the side of the multiple clamping plates (63) that is far away from each other. An active wedge (65) is slidably connected to the inclined surface of the driven wedge (64). A round rod (66) is fixedly connected to the back of the active wedge (65). The end of the round rod (66) that is far away from the active wedge (65) passes through the rectangular plate (61) and is connected to an L-shaped connecting plate (67).

10. A shock absorber for a suspended boom sprayer according to claim 9, characterized in that, The rear end of the L-shaped connecting plate (67) is welded with a horizontal plate (68). The horizontal plate (68) is symmetrically provided with inclined grooves on the left and right sides. Displacement plates (69) are slidably connected in the inclined grooves. The ends of the multiple displacement plates (69) away from the horizontal plate (68) are respectively fixedly connected to the corresponding L-shaped rods (437).

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