Auxiliary assembly device for installing the water distribution plate to the brush frame.

Abstract

This utility model discloses an auxiliary assembly device for installing a water distribution plate onto a brush frame, solving the technical problem of high process difficulty in the existing technology of snapping the water distribution plate onto the brush frame. The auxiliary assembly device for installing a water distribution plate onto a brush frame includes a base, a support frame, a drive assembly, a connecting plate, and two support plates. The base is used to position the brush frame, the support frame is fixed relative to the base, the drive assembly is mounted on the support frame, and the upper ends of the two support plates are rotatably connected to the connecting plate. The drive assembly drives the connecting plate to move up and down, so that the connecting plate has at least a first position and a second position below the first position. When the connecting plate is in the first position, the lower ends of the two support plates are pressed against the side plates on both sides of the brush frame, with the lower ends falling outside the rotation axis of the support plates. When the connecting plate descends from the first position to the second position, the rotation of the support plates pushes the side plates to elastically expand outward, thereby increasing the installation space of the water distribution plate between the two side plates.

Description

Technical Field

[0001] This utility model relates to the technical field of water brush frame assembly device for cotton harvesters, and in particular to an auxiliary assembly device for installing a water distribution plate onto the water brush frame. Background Technology

[0002] The water brush of a cotton harvester is the core component of its wetting system. Through the physical friction of the moistened bristles, it removes sticky residue from the spindle surface, keeping the spindle clean, moist, and efficient – ​​crucial for ensuring cotton harvesting quality and machine efficiency. The water brush frame is the core supporting structure of the cotton harvester's water brush, serving to support the bristles, install and position the water brush, transmit power, and integrate the wetting system. A water distribution plate installed on the water brush frame distributes the wetting solution to the bristles.

[0003] For the water brush frame, please refer to Chinese Utility Model Patent Publication No. CN208425210U, entitled "A Water Brush Frame for an Easy-to-Assemble Cotton Picker". For the water distribution plate, please refer to Chinese Utility Model Patent Publication No. CN209676893U, entitled "A Water Inlet Assembly for a Water Brush Frame".

[0004] The water distribution plate is installed on the brush brush frame. To facilitate disassembly, the water distribution plate and the brush brush frame are usually assembled by snap-fit. However, since the brush brush frame is usually made of a relatively thick metal sheet (about 3mm thick), it is difficult for the brush brush frame to deform, making the snap-fit ​​process between the water distribution plate and the brush brush frame difficult and time-consuming. Utility Model Content

[0005] This utility model proposes an auxiliary assembly device for installing the water distribution plate onto the brush frame to overcome the shortcomings of the prior art, thereby solving the technical problem of the high difficulty in the process of snapping the water distribution plate onto the brush frame in the prior art.

[0006] To achieve the above technical objectives, the present invention proposes an auxiliary assembly device for installing a water distribution plate onto a water brush frame, characterized in that it includes: The base is used to position the water brush frame. The support frame is fixed relative to the base; The drive assembly is mounted on the support frame; Connecting plate; and, Two support plates are respectively rotatably connected to the connecting plate at their upper ends, and the rotation axes of both support plates are horizontally set; the driving assembly drives the connecting plate to perform lifting and lowering movements, so that the connecting plate has at least a first position and a second position lower than the first position. The connecting plate is in the first position, and the lower ends of the two support plates are pressed against the side plates on both sides of the water brush frame from top to bottom, with the lower ends falling outside the rotation axis of the support plates. The connecting plate descends from the first position to the second position, the support plate rotates and pushes the side plate to expand elastically outward, thereby increasing the installation space of the water distribution plate between the two side plates. The connecting plate rises from the second position to the first position, the side plate elastically resets, and the water distribution plate installed between the two side plates is confined therein.

[0007] The auxiliary assembly device of this utility model uses a drive component to force the connecting plate to move up and down, and two support plates rotatably connected to the connecting plate. The support plates press against the side plates of the brush frame. The descent of the connecting plate causes the support plates to rotate and push the side plates to expand elastically, thereby increasing the installation space of the water distribution plate between the two side plates. The descent of the connecting plate limits the water distribution plate to the brush frame. In this way, the operator does not need to manually move the side plates of the brush frame to deform them and install the water distribution plate. The operator only needs to position the brush frame to the base of the auxiliary assembly device, drive the connecting plate to descend so that the two side plates of the brush frame expand elastically, install the water distribution plate into the brush frame, drive the connecting plate to rise to complete the assembly of the water distribution plate and the brush frame, and remove the brush frame to complete the assembly of the water distribution plate and the brush frame. During this assembly process, the operator does not need to exert much physical labor, and the assembly time can be greatly shortened.

[0008] Preferably, the end of the support plate that presses against the side plate is provided with a V-shaped groove.

[0009] By adopting the aforementioned technical solution and setting an inverted V-shaped groove, on the one hand, the groove wall of the V-shaped groove can play a guiding role, so that the support plate can better abut against the side plate. At the same time, when the support plate rotates and pushes the side plate to expand elastically outward, the V-shaped groove can also be well limited to the inside of the side plate, preventing the support plate from separating from the side plate.

[0010] Preferably, the two support plates are arranged in a mirror image, with their rotation axes on the same horizontal plane, and they rotate in the same vertical plane.

[0011] By adopting the aforementioned technical solution, two support plates are pressed onto the same position on the two side plates respectively, and the two support plates can rotate simultaneously to push the two side plates to maintain the same elastic expansion, so that the two side plates are subjected to uniform force and avoid damage caused by force on a single side plate.

[0012] Preferably, the device also includes a limiting plate and two limiting rods. The two limiting rods are respectively connected to the middle of the two supporting plates. The limiting plate is provided with two waist holes, which are respectively fitted onto the two limiting rods. Each waist hole includes an outer end. The two limiting rods abut against the two outer ends to restrict the two supporting plates from continuing to rotate outward.

[0013] By adopting the aforementioned technical solution, a limiting plate and a limiting rod are set. The limiting plate is provided with a waist hole that cooperates with the limiting plate. The outer end of the waist hole can restrict the movement of the limiting rod and limit the rotation angle of the support plate, thereby preventing the support plate from rotating excessively and causing the side plate to expand excessively.

[0014] Preferably, the waist hole also includes an inner end. When the limiting rod abuts the inner end, the lower end falls outside the rotation axis, and the distance between the lower ends of the two support plates corresponds to the distance between the two side plates.

[0015] Using the aforementioned technical solution, the support plate naturally droops under the action of gravity, causing the limiting rod to abut against the inner end of the waist hole. The distance between the lower ends of the two support plates corresponds to the distance between the two side plates. When the drive assembly drives the connecting plate to a higher position than the first position, the lower ends of the two support plates can maintain a corresponding relationship with the two side plates. When the connecting plate descends from the higher position to the first position, the operator only needs to adjust any one of the support plates to align the two support plates with the two side plates respectively, further reducing the difficulty of operation for the operator.

[0016] In one embodiment, based on all the foregoing embodiments, a guide component is further included, the guide component including a slider and a guide rail, the guide rail having a vertically extending groove that guides the sliding direction of the slider, one end of the slider being connected to the connecting plate and the other end being connected to the drive component.

[0017] By adopting the aforementioned technical solution, the movement direction of the connecting plate is guided by the guide component, thereby limiting the movement direction of the support plate. This avoids the swaying of the connecting plate during its descent, which could cause the support plate to fail to align with the side plate, or cause the support plate to sway and result in uneven force on the two side plates.

[0018] Preferably, the drive assembly includes a fixing nut, a screw, and a connecting bushing. The fixing nut is fixed to the support frame, the screw is vertically arranged and screwed to the fixing nut, the connecting bushing is fixedly connected to the slider, and one end of the screw is rotatably confined in the connecting bushing, so that the rotation of the screw drives the slider to move up and down.

[0019] By adopting the aforementioned technical solution, a connecting bushing is set up. The connecting bushing is fixedly connected to the slider and rotatably connected to the screw. The screw is rotatably confined in the connecting bushing. Since the screw is screwed to the fixed nut, the rotation of the screw allows one end of the screw to rise or fall relative to the fixed nut, thereby driving the slider and the connecting plate to move up and down through the slider. The operator can realize the raising and lowering of the connecting plate by rotating the screw forward and reverse, reducing the difficulty of operation.

[0020] Preferably, one end of the screw is provided with a radially protruding connecting ring, and the connecting bushing includes a sleeve hole for engaging with the screw. The wall of the sleeve hole at one end protrudes radially inward to form a limiting ring. The limiting ring stops the connecting ring to restrict the screw from disengaging from the connecting bushing in the sleeve direction, and the slider stops the screw to restrict the screw from disengaging from the connecting bushing in the direction away from the sleeve direction.

[0021] By adopting the aforementioned technical solution, one end of the screw can be rotatably confined within the connecting bushing.

[0022] Preferably, the drive assembly includes a drive motor and a lead screw. The drive motor drives the lead screw to rotate. The lead screw is vertically arranged and screwed to the slider. The rotation of the lead screw causes the slider to move up and down.

[0023] By adopting the aforementioned technical solution, operators do not need to manually drive the drive components, further reducing the labor intensity of operators.

[0024] Preferably, the system also includes a limit switch and a control unit. The slider that moves the connecting plate to the second position triggers the limit switch, or the connecting plate that moves to the second position triggers the limit switch. The control unit cuts off the power supply to the drive motor based on the sensing signal from the limit switch.

[0025] By adopting the aforementioned technical solution, and by setting limit sensor switches and control units, the drive motor can be automatically stopped after the connecting plate moves into position, thus preventing the side plates of the water brush frame from expanding excessively.

[0026] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the auxiliary assembly device in this utility model where the water brush frame is not assembled with a water distribution plate. Figure 2 This is an exploded view of the auxiliary assembly device in an embodiment of this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of a water brush frame equipped with a water distribution plate in the auxiliary assembly device of this utility model embodiment. Figure 6 This is a schematic diagram of the water distribution plate in an embodiment of the present utility model; Figure 7This is a schematic diagram of the connecting bushing in an embodiment of the present utility model; Figure 8 This is a schematic diagram of the screw in an embodiment of the present utility model; Figure 9 This is a schematic diagram of the connecting plate, support plate, limiting plate, and limiting rod in an embodiment of this utility model; Figure 10 This is a side view of the connecting plate in the first position in the auxiliary assembly device of this utility model embodiment; Figure 11 This is a side view of the connecting plate in the second position in the auxiliary assembly device of this utility model embodiment.

[0028] Figure label: 100. Base; 110. Assembly slot; 200. Support frame; 300, drive assembly; 310, fixing nut; 320, screw; 321, connecting ring; 330, connecting bushing; 331, sleeve hole; 332, limit ring; 400. Connecting plate; 500, support plate; 501, V-groove; 510, limiting plate; 511, waist hole; 5111, outer end; 5112, inner end; 520, limiting rod. 600, guide assembly; 610, slider; 620, guide rail; 621, slide groove; 700, water brush frame; 710, base plate; 711, positioning groove; 720, side plate; 721, snap-fit ​​groove; 730, assembly end. 800, water distribution plate; 810, positioning block; 820, snap-fit ​​block. Detailed Implementation

[0029] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[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 indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" or "several" means two or more, unless otherwise expressly defined.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] like Figures 1 to 6 , Figure 10 , Figure 11 As shown in the embodiment of this utility model, the auxiliary assembly device for installing the water distribution plate 800 onto the water brush frame 700 includes a base 100, a support frame 200, a drive assembly 300, a connecting plate 400, and two support plates 500. The base 100 is used to position the water brush frame 700. The support frame 200 is fixedly disposed relative to the base 100, and the drive assembly 300 is mounted on the support frame 200. The upper ends of the two support plates 500 are respectively rotatably connected to the connecting plate 400 and rotate around their respective rotation axes, and the rotation axes of the two support plates 500 are both horizontally disposed. The drive assembly 300 drives the connecting plate 400 to perform lifting and lowering movements, so that the connecting plate 400 has at least a first position and a second position lower than the first position. The two support plates 500 rise and fall together with the connecting plate 400.

[0034] The drive assembly 300 forces the connecting plate 400 to move up and down. Forced drive means that the drive assembly 300 provides power for both the raising and lowering of the connecting plate 400.

[0035] The water brush frame 700 includes a base plate 710 and two side plates 720 extending upward from both sides of the base plate 710. The base 100 has an assembly groove 110. The water brush frame 700 includes an assembly end 730 for mounting and positioning the water distribution plate 800. The assembly end 730 is positioned in the assembly groove 110, and the base plate 710 at the assembly end 730 fits against the bottom of the assembly groove 110. The base plate 710 has a positioning groove 711 at the assembly end 730 that engages with the water distribution plate 800, and the side plates 720 have snap-fit ​​grooves 721 at the assembly end 730 that engage with the water distribution plate 800. The water distribution plate 800 is provided with a positioning block 810 that cooperates with the positioning groove 711 and a snap-fit ​​block 820 that cooperates with the snap-fit ​​groove 721. The water distribution plate 800 is limited between the two side plates 720 and the bottom plate 710 of the water brush frame 700 by the positioning block 810 that cooperates with the positioning groove 711 and the snap-fit ​​block 820 that cooperates with the snap-fit ​​groove 721.

[0036] When the connecting plate 400 is in the first position, the lower ends of the two support plates 500 press down on the side plates 720 on both sides of the water brush frame 700 from top to bottom, with the lower ends falling outside the rotation axis of the support plates 500. The area between the two rotation axes is the inner side of the rotation axis, and the area where either rotation axis is away from the other rotation axis is the outer side of that rotation axis.

[0037] Since the lower end of the support plate 500 is located outside its rotation axis, the support plate 500 can rotate around the rotation axis when it descends, thereby pushing the side plate 720 to expand elastically outward.

[0038] The brush brush frame 700 is made of steel plate with a thickness of approximately 3mm, which has a certain degree of elastic deformation. When the connecting plate 400 descends from the first position to the second position, the support plate 500 rotates and pushes the side plate 720 to elastically expand outward, thereby increasing the installation space of the water distribution plate 800 between the two side plates 720. The assembler can then place the water distribution plate 800 onto the assembly end 730 of the brush brush frame 700. The water distribution plate 800 and the assembly end 730 of the brush brush frame 700 can be positioned by the engagement of the positioning block 810 and the positioning groove 711. At this time, the side plates 720 and / or the bottom plate 710 of the brush brush frame 700 elastically deform and have a tendency to return to their original position.

[0039] The connecting plate 400 rises from the second position to the first position, and the side plates 720 on both sides of the water brush frame 700 are reset under the trend of elastic reset, thus confining the water distribution plate 800 installed between the two side plates 720, completing the assembly of the water distribution plate 800 and the water brush frame 700.

[0040] It should be noted that the drive assembly 300 can force the connecting plate 400 to rise to a higher position than the first position, making the distance between the connecting plate 400 and the assembly groove 110 greater than the height of the assembly end 730 with the water distribution plate 800 installed. This allows the assembly end 730 without the water distribution plate 800 to enter this space, and also allows the assembly end 730 with the water distribution plate 800 to detach from the auxiliary assembly device, thereby removing the water brush frame 700 from the auxiliary assembly device. The drive assembly 300 forces the connecting plate 400 to descend from the higher position to the first position, causing the support plate 500 to press against the side plate 720.

[0041] It should be noted that when the connecting plate 400 descends to the first position, the operator can manually align the support plate 500 with the side plate 720 so that the support plate 500 can press against the side plate 720 from top to bottom; or the support plate 500 can be aligned with the side plate 720 and automatically pressed against the side plate 720 when it descends to the first position through the guide structure and the limiting structure.

[0042] The auxiliary assembly device of this utility model uses a drive component 300 to force the connecting plate 400 to move up and down, and two support plates 500 rotatably connected to the connecting plate 400. The support plates 500 press against the side plates 720 of the water brush frame 700. The descent of the connecting plate 400 causes the support plates 500 to rotate, pushing the side plates 720 to expand elastically, thereby increasing the installation space of the water distribution plate 800 between the two side plates 720. The rise of the connecting plate 400 limits the water distribution plate 800 to the water brush frame 700. In this way, the operator does not need to manually move the water brush frame 700. The side plate 720 deforms and is inserted into the water distribution plate 800. The operator only needs to position the water brush frame 700 to the base 100 of the auxiliary assembly device. The drive connecting plate 400 descends, causing the two side plates 720 of the water brush frame 700 to expand elastically, and the water distribution plate 800 is inserted into the water brush frame 700. The drive connecting plate 400 rises to complete the assembly of the water distribution plate 800 and the water brush frame 700. The water brush frame 700 is then removed to complete the assembly of the water distribution plate 800 and the water brush frame 700. During this assembly process, the operator does not need to exert much physical labor, and the assembly time can be greatly shortened.

[0043] In one embodiment, based on the foregoing embodiments, such as Figure 9 As shown, one end of the support plate 500 that presses against the side plate 720 is provided with a V-groove 501.

[0044] By setting the V-groove 501, on the one hand, the groove wall of the V-groove 501 can play a guiding role, so that the support plate 500 can better abut against the side plate 720. At the same time, when the support plate 500 rotates and pushes the side plate 720 to expand elastically outward, the V-groove 501 can also be well limited to the inner side of the side plate 720, preventing the support plate 500 from separating from the side plate 720.

[0045] In one embodiment, based on all the foregoing embodiments, such as Figure 1 , Figure 2 , Figure 5 , Figure 9 As shown, the two support plates 500 are mirror images of each other, with their rotation axes on the same horizontal plane and rotating in the same vertical plane.

[0046] The rotation axes of the two support plates 500 are at the same height, the two support plates 500 rotate in the same vertical plane, and because the two support plates 500 are mirror images, the descent of the connecting plate 400 allows the two support plates 500 to rotate at the same rotation angle and push the two side plates 720 to expand elastically outward respectively.

[0047] This configuration allows the two support plates 500 to press against the same positions on the two side plates 720, and the two support plates 500 can rotate simultaneously to push the two side plates 720 to maintain the same degree of elastic expansion, so that the two side plates 720 are subjected to uniform force, avoiding damage caused by force on a single side plate 720.

[0048] In one embodiment, based on all the foregoing embodiments, such as Figures 9 to 11 As shown, the auxiliary assembly device also includes a limiting plate 510 and two limiting rods 520. The two limiting rods 520 are respectively connected to the middle of the two support plates 500. The limiting plate 510 is provided with two waist holes 511. The two waist holes 511 are respectively fitted onto the two limiting rods 520. The waist holes 511 include an outer end 5111. The two limiting rods 520 abut against the two outer ends 5111 respectively to restrict the two support plates 500 from continuing to rotate outward.

[0049] Among them, the outer end 5111 refers to the end of any waist hole 511 that is away from the other waist hole 511. Correspondingly, the waist hole 511 also includes the inner end 5112, which refers to the end of any waist hole 511 that is close to the other waist hole 511.

[0050] By setting a limiting plate 510 and a limiting rod 520, the limiting plate 510 is provided with a waist hole 511 that cooperates with the limiting plate 510. The outer end 5111 of the waist hole 511 can restrict the movement of the limiting rod 520 and limit the rotation angle of the support plate 500, thereby preventing the support plate 500 from rotating excessively and causing the side plate 720 to expand excessively.

[0051] In this preferred embodiment, the waist hole 511 also includes an inner end 5112. When the limiting rod 520 abuts against the inner end 5112, the lower end of the support plate 500 falls outside the rotation axis, and the distance between the lower ends of the two support plates 500 corresponds to the distance between the two side plates 720.

[0052] like Figure 10 As shown, the distance L1 between the two side plates 720, the inner end 5112 of the waist hole 511 and the limiting rod 520 cooperate to limit the distance L2 between the lower ends of the two support plates 500, so that the lower ends of the two support plates 500 can be pressed onto the two side plates 720.

[0053] In this way, the support plate 500 naturally droops under the action of gravity, causing the limiting rod 520 to abut against the inner end 5112 of the waist hole 511. The distance between the lower ends of the two support plates 500 corresponds to the distance between the two side plates 720. When the drive assembly 300 drives the connecting plate 400 to a higher position than the first position, the lower ends of the two support plates 500 can maintain a corresponding relationship with the two side plates 720. When the connecting plate 400 descends from the higher position to the first position, the operator only needs to adjust any one of the support plates 500 to align the two support plates 500 with the two side plates 720 respectively, further reducing the difficulty of operation for the operator.

[0054] In some other embodiments, a stop block can be provided on the connecting plate 400 between the two support plates 500. When the connecting plate 400 is in a first position and other positions above the first position, the stop block stops the two support plates 500, thereby limiting the distance between the lower ends of the two support plates 500.

[0055] In one embodiment, based on all the foregoing embodiments, such as Figure 1 , Figure 2 , Figure 4 As shown, the auxiliary assembly device also includes a guide assembly 600, which includes a slider 610 and a guide rail 620. The guide rail 620 is provided with a vertically extending groove 621, which guides the sliding direction of the slider 610. One end of the slider 610 is connected to the connecting plate 400, and the other end is connected to the drive assembly 300.

[0056] In this embodiment, there are two connecting plates 400. One end of the two connecting plates 400 clamps the slider 610 therein, and the other end of the two connecting plates 400 clamps the two support plates 500 therein.

[0057] In some other embodiments, the connecting plate 400 can also be a single plate, the slider 610 has a groove, one end of the connecting plate 400 extends into the groove of the slider 610 and is fixedly connected to the slider 610 by fasteners, the support plate 500 also has a groove, the other end of the connecting plate 400 extends into the groove of the support plate 500 and is rotatably connected to the support plate 500 by fasteners.

[0058] The guide component 600 guides the movement direction of the connecting plate 400, thereby limiting the movement direction of the support plate 500. This prevents the support plate 500 from failing to align with the side plate 720 due to swaying during the descent of the connecting plate 400, or from swaying the support plate 500 and causing uneven force on the two side plates 720.

[0059] In this embodiment, the inner end 5112 of the waist hole 511 abuts against the limiting rod 520. The guide component 600 and the inner end 5112 of the waist hole 511 cooperate so that when the connecting plate 400 rises from the first position to a higher position, and when the connecting plate 400 falls from the higher position to the first position, the support plate 500 can still maintain alignment with the side plate 720. The operator does not need to adjust the position of the support plate 500, further reducing the difficulty of operation.

[0060] Furthermore, in the embodiment where the support plate 500 presses against the side plate 720 with a V-groove 501, since the connecting plate 400 moves from the first position to the second position, the support plate 500 pushes the side plate 720 to expand elastically. Therefore, the groove wall of the assembly groove 110 cannot fit with the side plate 720 of the water brush frame 700 that has not expanded outward. The assembly end 730 of the water brush frame 700 positioned in the assembly groove 110 has a large amount of play. When the connecting plate 400 is in a position that has descended from a position higher than the first position to the first position, the two support plates 500 press against the two side plates 720 respectively. Through the V-groove 501 on the support plate 500, the two side plates 720 can be automatically slid to the bottom of the V-groove 501 respectively, so that the two support plates 500 can accurately press against the two side plates 720 respectively, further improving the positioning accuracy. It also makes the two side plates 720 more evenly stressed during the process of the support plate 500 pushing the side plate 720 to expand elastically.

[0061] In this preferred embodiment, such as Figures 1 to 3 , Figure 7 , Figure 8 As shown, the drive assembly 300 includes a fixing nut 310, a screw 320, and a connecting bushing 330. The fixing nut 310 is fixed to the support frame 200. The screw 320 is vertically arranged and screwed to the fixing nut 310. The connecting bushing 330 is fixedly connected to the slider 610. One end of the screw 320 is rotatably limited in the connecting bushing 330, so that the rotation of the screw 320 drives the slider 610 to move up and down.

[0062] By setting a connecting bushing 330, which is fixedly connected to the slider 610 and rotatably connected to the screw 320, the screw 320 is rotatably confined in the connecting bushing 330. Since the screw 320 is screwed to the fixing nut 310, the rotation of the screw 320 allows one end of the screw 320 to rise or fall relative to the fixing nut 310, thereby driving the slider 610 and the connecting plate 400 to move up and down. The operator can realize the up and down movement of the connecting plate 400 by rotating the screw 320 forward and reverse, reducing the difficulty of operation.

[0063] The screw 320 and the fixing nut 310 are screwed together to form a self-locking structure, which can resist the elastic restoring force of the side plate 720. When the connecting plate 400 is in the second position, the drive assembly 300 can lock the side plate 720 in the outward expansion position.

[0064] In this embodiment, the slider 610 is provided with a horizontally arranged through hole, and the connecting bushing 330 is fixedly connected to the slider 610 by a horizontally arranged pin, one end of which is provided with a cotter pin.

[0065] In some other embodiments, the connecting bushing 330 may also be connected to the slider 610 by other fixed connection methods, including but not limited to the following: screwing, welding, bonding, and fasteners such as screws or rivets.

[0066] In this embodiment, a handle is provided on the end of the screw 320 away from the connecting bushing 330, and the operator can rotate the handle to drive the screw 320 to rotate.

[0067] More preferably, one end of the screw 320 is provided with a radially protruding connecting ring 321, and the connecting sleeve 330 includes a sleeve hole 331 for engaging with the screw 320. The hole wall at one end of the sleeve hole 331 protrudes radially inward to form a limiting ring 332. The limiting ring 332 stops the connecting ring 321 to restrict the screw 320 from disengaging from the connecting sleeve 330 in the sleeve direction. The slider 610 stops the screw 320 to restrict the screw 320 from disengaging from the connecting sleeve 330 in the direction away from the sleeve direction.

[0068] With the above settings, one end of the screw 320 can be rotatably confined within the connecting bushing 330.

[0069] In another preferred embodiment, the drive assembly 300 includes a drive motor and a lead screw. The drive motor drives the lead screw to rotate. The lead screw is vertically arranged and screwed to the slider 610. The rotation of the lead screw causes the slider 610 to move up and down.

[0070] The drive motor, lead screw, and slider 610 constitute a linear module. The end of the lead screw furthest from the drive motor is rotatably connected to a bearing housing, while the other end of the lead screw is connected to the motor shaft of the drive motor via a coupling. The drive motor is fixed to the support frame 200.

[0071] With the above settings, operators no longer need to manually drive the drive component 300, further reducing the labor intensity of operators.

[0072] More preferably, the drive assembly 300 also includes a limit sensor switch and a control unit. The slider 610, which moves the connecting plate 400 to the second position, triggers the limit sensor switch, and the control unit cuts off the power supply to the drive motor based on the sensing signal of the limit sensor switch.

[0073] By setting limit sensor switches and control units, the drive motor can be automatically stopped after the connecting plate 400 moves into position, thus preventing the side plate 720 of the water brush frame 700 from expanding excessively.

[0074] The limit switch can be a Hall effect switch or a photoelectric switch, which sends a sensing signal by being triggered by a magnetic element or a light hole on the slider 610. Alternatively, the limit switch can be a mechanical limit switch, which sends a corresponding sensing signal by being triggered by pressing the slider 610.

[0075] In other, more preferred embodiments, the limit sensor switch may be triggered by the connecting plate 400 moving to the second position.

[0076] More preferably, when the connecting plate 400 moves to another position higher than the first position, the limit sensor switch can also be triggered by the connecting plate 400 or the slider 610 to cut off the power supply to the drive motor.

[0077] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. An auxiliary assembly device for installing a water distribution plate onto a water brush frame, characterized in that, include: The base is used to position the water brush frame. The support frame is fixed relative to the base; The drive assembly is mounted on the support frame; Connecting plate; as well as, Two support plates are respectively rotatably connected to the connecting plate at their upper ends, and the rotation axes of the two support plates are both set horizontally; The drive assembly drives the connecting plate to move up and down, so that the connecting plate has at least a first position and a second position lower than the first position. The connecting plate is in the first position, and the lower ends of the two support plates are pressed against the side plates on both sides of the water brush frame from top to bottom, with the lower ends falling outside the rotation axis of the support plates. The connecting plate descends from the first position to the second position, and the supporting plate rotates to push the side plate to expand elastically outward, thereby increasing the installation space of the water distribution plate between the two side plates. The connecting plate rises from the second position to the first position, and the side plate elastically resets, thus confining the water distribution plate inserted between the two side plates within it.

2. The auxiliary assembly device as described in claim 1, characterized in that, The end of the support plate that presses against the side plate has a V-shaped groove.

3. The auxiliary assembly device as described in claim 1, characterized in that, The two support plates are mirror images of each other, with their rotation axes on the same horizontal plane and rotating in the same vertical plane.

4. The auxiliary assembly device as described in claim 1, characterized in that, It also includes a limiting plate and two limiting rods. The two limiting rods are respectively connected to the middle of the two supporting plates. The limiting plate is provided with two waist holes. The two waist holes are respectively sleeved on the two limiting rods. The waist holes include outer ends. The two limiting rods abut against the two outer ends to restrict the two supporting plates from continuing to rotate outward.

5. The auxiliary assembly device as described in claim 4, characterized in that, The waist hole also includes an inner end. When the limiting rod abuts the inner end, the lower end falls outside the rotation axis, and the distance between the lower ends of the two support plates corresponds to the distance between the two side plates.

6. The auxiliary assembly device as described in claim 1, characterized in that, It also includes a guide assembly, which includes a slider and a guide rail. The guide rail has a vertically extending groove that guides the sliding direction of the slider. One end of the slider is connected to the connecting plate, and the other end is connected to the drive assembly.

7. The auxiliary assembly device as described in claim 6, characterized in that, The drive assembly includes a fixing nut, a screw, and a connecting bushing. The fixing nut is fixed to the support frame. The screw is vertically arranged and screwed to the fixing nut. The connecting bushing is fixedly connected to the slider. One end of the screw is rotatably confined in the connecting bushing, so that the rotation of the screw drives the slider to move up and down.

8. The auxiliary assembly device as described in claim 7, characterized in that, One end of the screw is provided with a radially protruding connecting ring. The connecting bushing includes a sleeve hole for engaging with the screw. The wall of the sleeve hole at one end protrudes radially inward to form a limiting ring. The limiting ring stops the connecting ring to restrict the screw from disengaging from the connecting bushing along the sleeve direction. The slider stops the screw to restrict the screw from disengaging from the connecting bushing away from the sleeve direction.

9. The auxiliary assembly device as described in claim 6, characterized in that, The drive assembly includes a drive motor and a lead screw. The drive motor drives the lead screw to rotate. The lead screw is vertically arranged and screwed to the slider. The rotation of the lead screw causes the slider to move up and down.

10. The auxiliary assembly device as described in claim 9, characterized in that, It also includes a limit sensor switch and a control unit. The slider that moves the connecting plate to the second position triggers the limit sensor switch, or the connecting plate that moves to the second position triggers the limit sensor switch. The control unit cuts off the power supply to the drive motor based on the sensing signal of the limit sensor switch.

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