Spraying vehicle lifting device

Abstract

The utility model relates to a spraying vehicle lifting device which comprises a vertical plate arranged vertically, a spraying head supporting plate arranged on the vertical plate in a sliding mode and a driving mechanism capable of driving the spraying head supporting plate to ascend and descend. The driving mechanism comprises a lifting linkage shaft and a fulcrum shaft, the lifting linkage shaft is rotationally arranged in the length direction of the vertical plate, the fulcrum shaft is arranged above the lifting linkage shaft in parallel and connected with the spray head supporting plate, a multi-stage lifting rotary disc is arranged on the lifting linkage shaft, and the fulcrum shaft is provided with a lifting wheel attached to the peripheral face of the multi-stage lifting rotary disc. The spraying vehicle lifting device designed by the utility model can flexibly adjust the distance between the spraying head and a spraying medium so as to adapt to spraying media with different thicknesses.

Description

TECHNICAL FIELD

[0001] The utility model relates to spray equipment technical field especially relates to a spray vehicle lifting device. BACKGROUND

[0002] With the rapid increase of spray demand, the application scope of spray equipment is expanding, and the types of spray media are increasingly diverse. Spray media not only differ in material, but also differ significantly in thickness. In the actual spray process, if the distance between the spray head and the spray medium is not appropriate, it is easy to cause a series of problems. For example, too close distance may cause ink splashing, affecting the clarity and quality of the spray picture; too far distance will lead to a decrease in spray clarity, making the sprayed picture lack of stability and the spray effect fluctuate greatly, which is difficult to meet the demand of high-quality spray. SUMMARY

[0003] In view of the above problems, the utility model aims to design a spray vehicle lifting device that can flexibly adjust the distance between the spray head and the spray medium to adapt to spray media of different thicknesses.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A spray vehicle lifting device is designed, which includes a vertical plate, a spray head support plate slidingly arranged on the vertical plate, and a driving mechanism that can drive the spray head support plate to rise and fall. The driving mechanism includes a lifting linkage shaft rotating along the length direction of the vertical plate, a support shaft parallelly arranged above the lifting linkage shaft and connected with the spray head support plate, a plurality of lifting turntables arranged on the lifting linkage shaft, and a lifting wheel arranged on the support shaft and matched with the outer circumferential surface of the lifting turntable.

[0006] The spray vehicle lifting device designed in the scheme realizes precise multi-stage height control and flexible height adjustment through the mechanical linkage design of the multi-stage lifting turntable and the lifting wheel. The multi-stage lifting turntable is provided with multiple gears, and each gear corresponds to a specific lifting height. The lifting wheel is in transmission with the outer periphery of the multi-stage lifting turntable. The circumferential motion of the multi-stage lifting turntable is converted into linear lifting, that is, the rotation of the multi-stage lifting turntable makes the lifting wheel move in a circular motion relative to the multi-stage lifting turntable, and then the lifting wheel is lifted to drive the spray head support plate to lift through the support shaft, thereby realizing multi-stage adjustment of the height of the spray head support plate. The spray vehicle lifting device designed in the scheme can quickly adjust the height of the spray head support plate according to actual use requirements, thereby flexibly adjusting the distance between the spray head and the spray medium, adapting to spray media of different thicknesses, and ensuring the clarity and quality of the spray picture.

[0007] Further, the multi-stage lifting turntable is in the shape of a cam, and the outer periphery thereof is provided with multiple concave teeth that can be in close contact with the outer periphery of the lifting wheel.

[0008] The multi-stage lifting turntable is in the shape of a cam and has a non-equal-diameter contour. The lifting wheel moves in a circular motion relative to the contour of the multi-stage lifting turntable, and can realize lifting movement in the vertical direction. The outer periphery of the multi-stage lifting turntable is provided with multiple concave teeth that can be in close contact with the outer periphery of the lifting wheel. Each stage of the concave teeth corresponds to a fixed height, realizes multi-point close contact design of the outer periphery of the lifting wheel and the concave teeth, and realizes indexing positioning through discrete meshing nodes. The lifting wheel can be accurately controlled to lift, and the lifting and stopping position of the spray head support plate can be controlled. Through the synergistic optimization of mechanical linkage and surface morphology, the performance of the spray vehicle lifting device is significantly improved. The concave tooth profile is optimized to be in close contact with the outer periphery of the lifting wheel, and uniform contact pressure distribution is formed when meshing, which can reduce vibration or deviation caused by gaps and avoid affecting the spray quality due to vibration.

[0009] Further, the lifting wheel is rotatably arranged on the support shaft.

[0010] The lifting wheel and the support shaft are rotatably connected through a bearing or a bushing, realizing rolling contact between the lifting wheel and the multi-stage lifting turntable, converting traditional sliding friction into rolling friction, reducing transmission resistance, reducing wear and prolonging the service life of the components. When the lifting wheel rotates, the support shaft as the rotation center can uniformly distribute the load of the contact area between the multi-stage lifting turntable and the lifting wheel, reducing local stress concentration and ensuring that the spray head support plate does not shake or deviate during lifting.

[0011] Further, the multi-stage lifting turntable and the lifting wheel are correspondingly provided with two groups.

[0012] Two groups of multi-stage lifting turntables and lifting wheels are correspondingly arranged at positions close to both ends of the support shaft to form a symmetrical force arm structure, so that more accurate synchronous control is realized and the out-of-sync problem that may occur in single-point driving is avoided. When the two groups of multi-stage lifting turntables and lifting wheels act simultaneously, the shower head support plate can be lifted more evenly, and the risk of tilting or jamming is reduced.

[0013] Further, the driving mechanism further comprises a spanner wrench arranged at the end of the lifting linkage shaft.

[0014] By arranging the spanner wrench at the end of the lifting linkage shaft, manual control and adjustment of the multi-stage lifting turntable are facilitated, the lifting linkage shaft is directly driven to rotate by manual rotation, and then the multi-stage lifting turntable is driven to rotate.

[0015] Further, the shower head support plate comprises a bottom plate, side arms arranged vertically on both sides of the bottom plate, and a guide mechanism arranged between the two side arms and the vertical plate for guiding the lifting of the shower head support plate.

[0016] By forming a U-shaped frame structure with the two vertical side arms and the bottom plate, the torsional stiffness is significantly improved, the deformation caused by inertia or external force during lifting is avoided, the geometric accuracy of the motion trajectory of the shower head is ensured, the guide mechanism is arranged between the side arms and the vertical plate to realize stable lifting of the shower head support plate, the force is symmetrically distributed by the two independent guide mechanisms on both sides to eliminate the unbalanced load problem caused by unilateral friction, and the service life is prolonged.

[0017] Further, the bottom plate is provided with a plurality of fixed positions for mounting the shower heads.

[0018] The bottom plate serves as a load-bearing body and provides uniform stress through planar contact. A plurality of fixed positions for mounting the shower heads are arranged on the bottom plate. According to actual use requirements, the number of shower heads can be quickly increased or decreased to meet different spraying requirements.

[0019] Further, the guide mechanism comprises a fixed plate arranged on the side arm and a sliding rail unit arranged vertically between the fixed plate and the vertical plate.

[0020] The sliding rail unit is a linear rail unit. The linear guide rail can be fixed on the fixed plate, and the sliding block can be fixed on the vertical plate, thereby realizing smooth sliding movement.

[0021] Further, the fixed plate away from the side arm is provided with a connecting arm connected to the support shaft.

[0022] One end of the connecting arm is fixed to the side surface of the fixed plate through a threaded fastener, and the other end is connected to the end of the support shaft through the gap between the lifting linkage shaft and the vertical plate, thereby realizing the lifting of the support shaft to drive the lifting of the shower head support plate.

[0023] Further, the elastic member is fixed at one end to the vertical plate and at the other end to the fixed plate.

[0024] The elastic member can adopt a tension spring, and the elastic member is in a tension state, so that the elastic member exerts a downward tension on the nozzle support plate by its elastic force, on the one hand, the lifting wheel and the concave teeth of the multi-stage lifting turntable are tightly fitted, on the other hand, the nozzle can remain stable without moving when subjected to an upward abutting force. The two ends of the tension spring are fixed on the vertical plate and the fixed plate through hooks, which is convenient for disassembly and replacement, and can reduce downtime maintenance time when replacement and maintenance are needed.

[0025] Compared with the prior art, the utility model has the advantages that:

[0026] The spray vehicle lifting device designed in the scheme realizes precise multi-stage height control and flexible height adjustment through the mechanical linkage design of the multi-stage lifting turntable and the lifting wheel, the multi-stage lifting turntable is provided with a plurality of gears, each gear corresponds to a specific lifting height, the lifting wheel is fitted and transmitted with the outer circumferential surface of the multi-stage lifting turntable, the circumferential motion of the multi-stage lifting turntable is converted into linear lifting, that is, the lifting wheel makes circumferential motion relative to the multi-stage lifting turntable by rotating the multi-stage lifting turntable, and then the lifting wheel is lifted to drive the nozzle support plate to lift through the fulcrum to realize multi-stage adjustment of the height of the nozzle support plate. The spray vehicle lifting device designed in the scheme can quickly adjust the height of the nozzle support plate according to actual use requirements, and then flexibly adjust the distance between the nozzle and the spray medium, adapt to spray media of different thicknesses, and ensure the clarity and quality of the spray picture. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic view of the spray vehicle lifting device of an embodiment of the utility model.

[0028] Figure 2 It is Figure 1 It is a local enlarged view of A.

[0029] Illustration: 1, vertical plate; 2, nozzle support plate; 21, bottom plate; 211, fixed position; 22, side arm; 3, driving mechanism; 31, lifting linkage shaft; 32, fulcrum; 33, multi-stage lifting turntable; 331, concave tooth; 34, lifting wheel; 35, key-shaped handle; 4, guide mechanism; 41, fixed plate; 5, connecting arm; 6, elastic member. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The preferred embodiments of the utility model are shown in the drawings. However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein.

[0031] As Figure 1 shown, the embodiment provides a spray vehicle lifting device, which comprises a vertical plate 1, a spray head support plate 2 slidingly arranged on the vertical plate 1, and a driving mechanism 3 capable of driving the spray head support plate 2 to lift.

[0032] As Figure 1 shown, the spray head support plate 2 comprises a bottom plate 21 and two side arms 22 vertically arranged on both sides of the bottom plate 21, and the two side arms 22 and the vertical plate 1 are respectively provided with a guide mechanism 4 for guiding the spray head support plate 2 to lift. The guide mechanism 4 comprises a fixed plate 41 arranged on the side arm 22 and a sliding guide rail unit (not shown in the figure) vertically arranged between the fixed plate 41 and the vertical plate 1. A U-shaped frame structure is formed by the two vertical side arms 22 and the bottom plate 21, which significantly improves the torsional stiffness, avoids deformation caused by inertia or external force during lifting, ensures the geometric accuracy of the spray head motion trajectory, and realizes stable lifting of the spray head support plate by arranging the guide mechanism 4 between the side arm 22 and the vertical plate 1. The two independent guide mechanisms 4 on both sides realize force symmetric distribution, eliminate the problem of unbalanced load caused by unilateral friction, and prolong the service life. The sliding guide rail unit adopts existing technology, such as a linear guide rail unit. The linear guide rail can be fixed on the fixed plate 41, and the sliding block can be fixed on the vertical plate 1, thereby realizing stable sliding movement. The bottom plate 21 is provided with a plurality of fixed positions 211 for installing spray heads. The bottom plate 21 serves as a load-bearing body and provides uniform stress through plane contact. A plurality of fixed positions 211 for installing spray heads are arranged thereon. According to actual use requirements, the number of spray heads can be quickly increased or decreased to meet different spray requirements.

[0033] As Figure 1 and Figure 2As shown, the driving mechanism 3 comprises a lifting linkage shaft 31 arranged in rotation along the length direction of the vertical plate 1, a support shaft 32 arranged in parallel above the lifting linkage shaft 31 and connected with the nozzle support plate 2, and the two ends of the vertical plate 1 are fixedly provided with supporting ears, the lifting linkage shaft 31 is arranged through the supporting ears, the fixed plate 41 is provided with a connecting arm 5 connected with the support shaft 32 on the side away from the side arm 22, one end of the connecting arm 5 is fixed on the side surface of the fixed plate 41 through a threaded fastener, and the other end is connected with the end of the support shaft 32 through the gap between the lifting linkage shaft 31 and the vertical plate 1, so as to realize the lifting of the support shaft 32 to drive the lifting of the nozzle support plate 2. The lifting linkage shaft 31 is provided with a multi-stage lifting turntable 33, and the support shaft 32 is provided with a lifting wheel 34 matched with the outer periphery of the multi-stage lifting turntable 33. The multi-stage lifting turntable 33 is in cam shape, and the outer periphery is provided with a plurality of concave teeth 331 matched with the outer periphery of the lifting wheel 34. The multi-stage lifting turntable 33 is in cam shape, has a non-equal-diameter contour, and the lifting wheel 34 moves in a circular motion relative to the contour of the multi-stage lifting turntable 33, so as to realize the lifting movement of the lifting wheel 34 in the vertical direction. A plurality of concave teeth 331 matched with the outer periphery of the lifting wheel 34 are arranged on the outer periphery of the multi-stage lifting turntable 33, each stage of the concave teeth 331 corresponds to a fixed height, realizes the multi-point matching design of the outer periphery of the lifting wheel 34 and the concave teeth 331, realizes the indexing positioning through the discrete meshing nodes, accurately controls the lifting of the lifting wheel 34, and further controls the lifting and stopping position of the nozzle support plate 2. Through the cooperation and optimization of mechanical linkage and surface form, the performance of the spray vehicle lifting device is significantly improved. The tooth profile of the concave teeth 331 is optimized and matched with the outer periphery of the lifting wheel 34, and uniform contact pressure distribution is formed during meshing, which can reduce the vibration or deviation caused by the gap and avoid the influence of vibration on the spray quality. In addition, the lifting wheel 34 is arranged in rotation on the support shaft. The lifting wheel 34 and the support shaft 32 are connected in rotation through a bearing or a bushing, realizing the rolling contact between the lifting wheel 34 and the multi-stage lifting turntable 33, converting the traditional sliding friction into rolling friction, reducing the transmission resistance, reducing wear and prolonging the service life of the parts. When the lifting wheel 34 rotates, the support shaft 32 as the rotation center can uniformly distribute the load of the contact area between the multi-stage lifting turntable 33 and the lifting wheel 34, reduce the local stress concentration, and ensure that the nozzle support plate does not shake or deviate during lifting.

[0034] As shown in Figure 1 The driving mechanism 3 further comprises a wrench 35 arranged at the end of the lifting linkage shaft 31. By arranging the wrench 35 at the end of the lifting linkage shaft 31, the multi-stage lifting turntable 33 can be manually controlled and adjusted, and the lifting linkage shaft 31 is directly driven to rotate by manual rotation, thereby driving the multi-stage lifting turntable 33 to rotate.

[0035] As shown in Figure 1As shown, in the embodiment, two sets of multi-stage lifting turntable 33 and lifting wheel 34 are correspondingly arranged. The two sets of multi-stage lifting turntable 33 and lifting wheel 34 are arranged at positions close to both ends of the supporting shaft 32, forming a symmetrical force arm structure, achieving more accurate synchronous control, and avoiding the out-of-sync problem that may occur in single-point driving. When the two sets of multi-stage lifting turntable 33 and lifting wheel 34 act simultaneously, the shower head support plate 2 can be lifted more evenly, reducing the risk of tilting or jamming. In other possible embodiments, one, three or more sets of multi-stage lifting turntable 33 and lifting wheel 34 can be correspondingly arranged, and the specific number of arrangements is not limited.

[0036] As shown in the drawings, Figure 1 As shown, a resilient member 6 is arranged between the vertical plate 1 and the fixed plate 41, one end of the resilient member 6 is fixed to the vertical plate 1, and the other end is fixed to the fixed plate 41. The resilient member 6 can be a tension spring, and the resilient member 6 is in a stretched state, so that it exerts a downward pulling force on the shower head support plate 2 through its own elastic force, on the one hand, the lifting wheel 34 and the recessed teeth 331 of the multi-stage lifting turntable 33 can be tightly fitted, on the other hand, it can ensure that the shower head can remain stable without moving when subjected to an upward abutting force. The two ends of the tension spring are fixed on the vertical plate 1 and the fixed plate 41 by hooks, which is convenient for disassembly and replacement, and can reduce the downtime for maintenance when maintenance is needed.

[0037] The spray vehicle lifting device provided in the embodiment realizes precise multi-stage height control and flexible height adjustment through the mechanical linkage design of the multi-stage lifting turntable 33 and the lifting wheel 34. The multi-stage lifting turntable 33 is arranged on the lifting linkage shaft 31, and has multiple gears, each gear corresponding to a specific lifting height. The lifting wheel 34 is in transmission with the outer periphery of the multi-stage lifting turntable 33. The circumferential motion of the multi-stage lifting turntable 33 is converted into linear lifting. That is, by rotating the multi-stage lifting turntable 33, the lifting wheel 34 moves in a circular motion relative to the multi-stage lifting turntable 33, and then is lifted to drive the lifting wheel 34 to lift the shower head support plate 2 through the supporting shaft 32, thereby achieving multi-stage adjustment of the height of the shower head support plate 2. The spray vehicle lifting device provided in the embodiment can quickly adjust the height of the shower head support plate 2 according to actual use requirements, and then flexibly adjust the distance between the shower head and the spray medium, adapt to spray media of different thicknesses, and ensure the clarity and quality of the spray picture.

[0038] In the description of the present application, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0039] Furthermore, the terms "first", "second", and the like, are used only for descriptive purposes, and do not imply or imply relative importance or a quantity of the indicated technical features. Thus, the definition of "first", "second", and the like features can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0040] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle lift comprising: The vertical plate, the spray head support plate and the driving mechanism are arranged vertically, slidingly and drivingly, respectively.

2. The lift device of claim 1, wherein, The multi-stage lifting turntable is cam-shaped and has a plurality of concave teeth on the outer periphery.

3. The lift device of claim 2, wherein, The lifting wheel is rotatably arranged on the support shaft.

4. The lift device of claim 2, wherein, The multi-stage lifting turntable and the lifting wheel are arranged in two groups.

5. The lift device of claim 1, wherein, The driving mechanism further comprises a wrench arranged at the end of the lifting linkage shaft.

6. The lift device of claim 1, wherein, The spray head support plate comprises a bottom plate and side arms arranged vertically on both sides of the bottom plate.

7. The lift device of claim 6, wherein, The bottom plate is provided with a plurality of fixed positions for mounting spray heads.

8. The lift device of claim 6, wherein, The guide mechanism comprises a fixed plate arranged on the side arm and a sliding guide rail unit arranged vertically between the fixed plate and the vertical plate.

9. The lift device of claim 8, wherein, The fixed plate is provided with a connecting arm connected to the support shaft.

10. The lift device of claim 8, wherein, The vertical plate and the fixed plate are provided with an elastic member, one end of which is fixed to the vertical plate and the other end of which is fixed to the fixed plate.

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