Four-wheel positioning equipment

Abstract

The utility model provides four-wheel positioning equipment which comprises a base assembly, a stand column assembly arranged on the base assembly, a flat plate installation structure, a cross beam assembly arranged on the stand column assembly in a sliding mode and a shooting camera fixed to the cross beam assembly. The stand column assembly comprises a first stand column, a lifting driving part fixedly connected with the first stand column, a transmission wheel driven by the lifting driving part to do lifting motion and a transmission chain wound on the transmission wheel, the bottom end of the first stand column is connected to the base assembly, and the flat plate mounting structure is fixed to the first stand column. One end of the transmission chain is fixedly arranged, and the other end of the transmission chain is connected with the cross beam assembly. According to the four-wheel positioning equipment, through lifting of the transmission wheels, the lifting assembly has a large moving stroke, meanwhile, the length of the first stand column is small, and production and transportation are convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle detection technical field, more specifically, relate to a four wheel positioning equipment. BACKGROUND

[0002] Four wheel positioning equipment is the tool for detecting and adjusting automobile wheel positioning parameter, is mainly measuring the parameters such as wheel's kingpin caster angle, kingpin inclination, front wheel camber and toe-in, and technical personnel can judge whether wheel positioning is accurate according to the parameter detected.If not accurate, corresponding adjustment is carried out to ensure the stability and maneuverability of vehicle running.The camera for photographing wheel is usually installed on the column, and the height of camera can be adjusted.But when four wheel positioning equipment has other detection functions, the adjusting stroke required by camera is long, and the column is long accordingly, and the overlong column is not conducive to production and transportation. SUMMARY

[0003] The utility model embodiment aims at providing a four wheel positioning equipment to solve the technical problem of overlong column caused by the diversification of four wheel positioning equipment in prior art.

[0004] To achieve the above object, the utility model adopts the technical scheme of providing a four wheel positioning equipment, which comprises a base assembly, a column assembly arranged on the base assembly, a flat plate mounting structure, a crossbeam assembly slidingly arranged on the column assembly and a shooting camera fixed to the crossbeam assembly, the column assembly comprises a first column, a lifting driving part fixedly connected with the first column, a transmission wheel driven by the lifting driving part to move up and down, a transmission chain arranged around the transmission wheel, the bottom end of the first column is connected to the base assembly, the flat plate mounting structure is fixed to the first column, one end of the transmission chain is fixedly arranged, and the other end of the transmission chain is connected with the crossbeam assembly.

[0005] Optionally, the column assembly further comprises a second column, the second column is slidingly arranged in the vertical direction on the first column, the movement output end of the lifting driving part is fixedly connected with the second column, and the transmission wheel is rotatably installed on the second column.

[0006] Optionally, the second column comprises two stand plates arranged at intervals and a connecting plate connecting the two stand plates, the two stand plates are arranged on opposite sides of the first column respectively, the crossbeam assembly is fixed to the transmission chain through a mounting bracket, and a guide wheel is arranged between the mounting bracket and the stand plate.

[0007] Optionally, the vertical plate includes a first side wall portion and a second side wall portion bent and connected to the first side wall portion, the connection between the first side wall portion and the second side wall portion forms an L-shaped limit angle, the first column extends toward the vertical plate to form a limit portion that cooperates with the limit angle, and one end of the transmission chain is fixed to the limit portion; the mounting frame includes a first mounting plate and two second mounting plates respectively connected to the opposite sides of the first mounting plate, the crossbeam assembly is fixed to the first mounting plate, and the guide wheels are provided between the first mounting plate and the first side wall portion and between the second mounting plate and the second side wall portion, the first side wall portion is provided with a slide groove extending in the vertical direction, and the radial sides of the guide wheel between the first mounting plate and the first side wall portion are clamped in the slide groove.

[0008] Optionally, the beam assembly includes a first beam, a second beam rotatably connected to the first beam, a first elastic member whose two ends are respectively connected to the first beam and the second beam, a first locking assembly and a second locking assembly. The beam assembly has a use state and a folded state. The first locking assembly is used to lock the beam assembly in the use state, and the second locking assembly is used to lock the beam assembly in the folded state.

[0009] Optionally, the first locking assembly includes a first lock seat fixed to the first beam, a second lock seat fixed to the second beam, a hinge shaft, two pressing rods hinged to each other through the hinge shaft, and a second elastic member whose two ends are respectively connected to the two pressing rods, one end of the pressing rod has a first clamping portion, the second lock seat has a second clamping portion that is respectively clamped with the two first clamping portions, and the other end of the pressing rod has a first button portion for pressing.

[0010] Optionally, the second locking assembly includes a third lock seat fixed to the first beam, a fourth lock seat fixed to the second beam, a sliding structure slidably arranged on the third lock seat, and a third elastic member whose two ends are respectively connected to the sliding structure and the third lock seat, the third lock seat and the fourth lock seat are hinged to each other, the sliding structure has a third clamping portion and a second button portion for pressing, and the fourth lock seat has a fourth clamping portion clamped with the third clamping portion; when the third clamping portion and the fourth clamping portion are clamped, the first beam and the second beam are perpendicular to each other.

[0011] Optionally, there are two second beams, which are rotatably connected to two ends of the first beam respectively, and the shooting camera is fixed to one end of the second beam away from the first beam.

[0012] Optionally, the base assembly comprises a first horizontal moving mechanism, a second horizontal moving mechanism and a rotating mechanism connected in sequence, a motion output end of the rotating mechanism is fixedly connected with the first vertical column, and a rotation axis of the motion output end of the rotating mechanism is in a vertical direction, the first horizontal moving mechanism is used to drive the second horizontal moving mechanism, the rotating mechanism and the vertical column assembly to move in a first direction, the second horizontal moving mechanism is used to drive the rotating mechanism and the vertical column assembly to move in a second direction, the first direction and the second direction are perpendicular to each other and are both in a horizontal direction; an angle adjusting mechanism is arranged between the vertical column assembly and the cross beam assembly, and the angle adjusting mechanism is used to at least adjust a pitch angle and a roll angle of the cross beam assembly.

[0013] Optionally, the angle adjusting mechanism comprises an angle fixing base, an angle adjusting base, a rotating base rotatably connected with the angle adjusting base, a pitch adjusting assembly and a roll adjusting assembly both arranged on the angle adjusting base, and the rotating base is fixedly connected with the cross beam assembly; the pitch adjusting assembly comprises a first rotating hand wheel, a first bevel gear assembly and a first worm and gear assembly connected in sequence, and a first worm wheel of the first worm and gear assembly is fixedly connected with the rotating base; the roll adjusting assembly comprises a second rotating hand wheel, a second bevel gear assembly, a first lead screw assembly and a rotating connecting rod connected in sequence, one end of the rotating connecting rod is rotatably connected with a linear output end of the first lead screw assembly, and the other end of the rotating connecting rod is rotatably connected with the angle fixing base.

[0014] The four-wheel positioning equipment has the advantages that, compared with the prior art, the four-wheel positioning equipment comprises a base assembly, a vertical column assembly, a flat plate mounting structure, a cross beam assembly and a shooting camera, the flat plate mounting structure is used for mounting a terminal such as a flat plate, and the hands of an operator are released, the vertical column assembly comprises a first vertical column, a lifting driving piece, a transmission wheel and a transmission chain, the lifting driving piece can drive the transmission wheel to move up and down, so that the cross beam assembly connected with the transmission chain moves up and down, in this way, the lifting assembly has a large moving stroke through the lifting of the transmission wheel, and meanwhile, the first vertical column is short in length, so that production and transportation are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0016] Figure 1 The utility model provides four wheel positioning equipment's solid structure diagram provided in embodiment.

[0017] Figure 2 A three-dimensional structure view of the three-dimensional assembly provided by the embodiment of the utility model;

[0018] Figure 3 A three-dimensional structure view of the top end of the column assembly provided by the embodiment of the utility model;

[0019] Figure 4 A three-dimensional structure view of the mounting rack provided by the embodiment of the utility model;

[0020] Figure 5 A three-dimensional structure view of the beam assembly provided by the embodiment of the utility model Figure 1 ;

[0021] Figure 6 A partial enlarged view of A in the figure Figure 5 ;

[0022] Figure 7 An exploded structure view of the first locking assembly in the figure Figure 5 ;

[0023] Figure 8 A three-dimensional structure view of the beam assembly provided by the embodiment of the utility model Figure 2 ;

[0024] Figure 9 A partial enlarged view of B in the figure Figure 8 ;

[0025] Figure 10 An exploded structure view of the second locking assembly in the figure Figure 8 ;

[0026] Figure 11 A three-dimensional structure view of the base assembly provided by the embodiment of the utility model;

[0027] Figure 12 An internal structure view of the base assembly provided by the embodiment of the utility model;

[0028] Figure 13 A three-dimensional structure view of the angle adjusting mechanism provided by the embodiment of the utility model;

[0029] Figure 14 An internal structure view of the angle adjusting mechanism provided by the embodiment of the utility model.

[0030] In the figure, various reference signs are:

[0031] 10-base assembly; 11-first horizontal moving mechanism; 12-second horizontal moving mechanism; 13-rotating mechanism; 141-column base; 142-base shell;

[0032] 20 - column assembly; 21 - first column; 211 - limiting part; 22 - second column; 221 - vertical plate; 2211 - first side wall part; 2212 - second side wall part; 2213 - sliding groove; 222 - connecting plate; 23 - lifting driving part; 24 - transmission wheel; 25 - transmission chain; 26 - mounting frame; 261 - first mounting plate; 262 - second mounting plate; 263 - guide wheel; 2631 - clamping groove;

[0033] 30 - angle adjusting mechanism; 31 - angle fixing seat; 32 - angle adjusting seat; 33 - pitch adjusting assembly; 331 - first rotating hand wheel; 332 - first bevel gear assembly; 3321 - first bevel gear; 3322 - second bevel gear; 333 - first worm gear assembly; 3331 - first worm; 3332 - first worm gear; 34 - roll adjusting assembly; 341 - second rotating hand wheel; 342 - second bevel gear assembly; 3421 - third bevel gear; 3422 - fourth bevel gear; 343 - first lead screw assembly; 3431 - first lead screw; 3432 - first nut block; 3433 - first sliding rail; 344 - rotating connecting rod; 351 - horizontal distance measuring instrument; 352 - height distance measuring instrument;

[0034] 40 - cross beam assembly; 41 - first cross beam; 42 - second cross beam; 43 - first locking assembly; 431 - first locking seat; 4311 - first button hole; 432 - second locking seat; 4321 - second clamping part; 433 - hinged shaft; 434 - pressing rod; 4341 - first clamping part; 4342 - first button part; 44 - second locking assembly; 441 - third locking seat; 4411 - locking seat body; 4412 - locking seat cover; 4413 - second button hole; 442 - fourth locking seat; 443 - sliding structure; 4431 - third clamping part; 4432 - second button part; 444 - third elastic member; 4421 - fourth clamping part; 451 - first elastic member; 452 - gyroscope;

[0035] 50 - shooting camera; 60 - flat plate mounting structure. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "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 on the present application.

[0039] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" 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 specifically limited.

[0040] The four-wheel alignment device is a tool for detecting and adjusting the wheel alignment parameters of a vehicle, mainly measuring the parameters such as the caster angle, the camber angle, the toe-in angle and the toe-out angle of the wheels, and the technician can determine whether the wheel alignment is accurate according to the detected parameters. If not, corresponding adjustment is made to ensure the stability and maneuverability of the vehicle. The camera used for taking pictures of the wheels is usually installed on a stand, and the height of the camera can be adjusted. However, when the four-wheel alignment device also has other detection functions, the adjustment stroke required by the camera is long, and the stand is correspondingly long, and the excessively long stand is not conducive to production and transportation.

[0041] In order to solve the above technical problems, the present application provides a four-wheel alignment device, a camera 50 is installed on a cross beam assembly 40, and the cross beam assembly 40 can slide relative to a stand assembly 20. Specifically, the stand assembly 20 includes a first stand 21, a lifting drive 23, a transmission wheel 24 and a transmission chain 25, the lifting drive 23 is used to drive the transmission wheel 24 to move up and down, one end of the transmission chain 25 is fixed, and the other end is connected with the cross beam assembly 40, so that when the transmission wheel 24 moves up and down, the cross beam assembly 40 also moves up and down, and the stroke of the cross beam assembly 40 is twice the stroke of the transmission wheel 24. In this way, when the first stand 21 is set to be shorter, the cross beam assembly 40 can still realize a larger moving stroke, which is conducive to the production and transportation of the stand assembly 20. When the four-wheel alignment device only has a four-wheel alignment function, the length of the stand assembly 20 can be reduced by using the stand assembly 20. When the four-wheel alignment device has a four-wheel alignment function and also has other positioning and detection functions, the moving stroke of the cross beam assembly 40 can be increased without increasing the length of the stand assembly 20. It should be noted that the "length of the stand assembly 20" refers to the length of the stand assembly 20 when it is retracted, that is, its minimum length.

[0042] The four-wheel positioning device provided by the embodiment of the utility model will be described.

[0043] Please refer to Figures 1 to 3 , the four-wheel positioning device comprises a base assembly 10, a stand assembly 20 arranged on the base assembly 10, a flat plate mounting structure 60, a cross beam assembly 40 slidingly arranged on the stand assembly 20, and a shooting camera 50 fixed to the cross beam assembly 40. The stand assembly 20 comprises a first stand 21, a lifting driving part 23 fixedly connected to the first stand 21, a transmission wheel 24 driven by the lifting driving part 23 to move up and down, and a transmission chain 25 arranged around the transmission wheel 24. The bottom end of the first stand 21 is connected to the base assembly 10, the flat plate mounting structure 60 is fixed to the first stand 21, one end of the transmission chain 25 is fixedly arranged, and the other end of the transmission chain 25 is connected to the cross beam assembly 40.

[0044] The base assembly 10 is generally used to be placed on the ground, used to support the stand assembly 20, facilitate the movement of the four-wheel positioning device, and make the four-wheel positioning device more stable when placed.

[0045] The stand assembly 20 is arranged on the base assembly 10, and the stand assembly 20 is generally a vertically arranged strip-shaped structure, used to support the cross beam assembly 40, so that the cross beam assembly 40 is at a set height. The stand assembly 20 comprises the first stand 21, the lifting driving part 23, the transmission wheel 24 and the transmission chain 25. The bottom end of the first stand 21 is fixed to the base assembly 10. The lifting driving part 23 is a power component, can output linear motion, the transmission wheel 24 can rotate, and can move up and down under the action of the lifting driving part 23. One end of the transmission chain 25 is fixedly arranged, the other end of the transmission chain 25 is connected to the cross beam assembly 40, and the transmission chain 25 is arranged around the transmission wheel 24. When the transmission wheel 24 moves up and down, it rotates at the same time. Since one end of the transmission chain 25 remains stationary, the other end of the transmission chain 25 (the cross beam assembly 40) moves with the up and down movement of the transmission wheel 24. Moreover, the displacement of the cross beam assembly 40 in the vertical direction is twice the displacement of the transmission wheel 24 in the vertical direction. Therefore, when the length of the first stand 21 is short, the larger vertical stroke of the cross beam assembly 40 can still be realized, and the first stand 21 does not need to be arranged to be longer.

[0046] The cross beam assembly 40 is slidingly arranged on the stand assembly 20, that is, the cross beam assembly 40 moves up and down relative to the stand assembly 20 under the driving of the transmission chain 25.

[0047] The shooting camera 50 has a shooting function. When the four-wheel positioning device is working, the targets are arranged on the hubs of the wheels at the same time, the shooting camera 50 can shoot the targets on the hubs, and whether the positioning of the wheels is accurate can be judged according to the shooting data. The shooting camera 50 is fixed on the cross beam assembly 40, and the shooting camera 50 moves synchronously when the cross beam assembly 40 moves.

[0048] The flat plate mounting structure 60 is used for mounting the fixed flat plate, the flat plate can be wirelessly connected with the vehicle-mounted system, and the parameters of the vehicle can be adjusted in real time in the detection process. The flat plate mounting structure 60 can clamp, place and support the flat plate, and the specific structure of the flat plate mounting structure 60 is not limited here.

[0049] The four-wheel positioning device in the above embodiment comprises the base assembly 10, the column assembly 20, the flat plate mounting structure 60, the cross beam assembly 40 and the shooting camera 50, the flat plate mounting structure 60 is used for mounting the terminal such as the flat plate, and the hands of the operator are released, the column assembly 20 comprises the first column 21, the lifting driving part 23, the transmission wheel 24 and the transmission chain 25, the lifting driving part 23 can drive the lifting movement of the transmission wheel 24, so that the cross beam assembly 40 connected with the transmission chain 25 moves up and down. In this way, the lifting assembly has a larger moving stroke through the lifting of the transmission wheel 24, and the length of the first column 21 is shorter, which is convenient for production and transportation.

[0050] In some embodiments of the utility model, please refer to Figure 3 The transmission wheel 24 is a chain wheel, and the transmission chain 25 is a chain. The chain has strong rigidity, and can be applied to the cross beam assembly 40 with larger mass, and has higher structural strength.

[0051] In some embodiments of the utility model, please refer to Figure 3 The column assembly 20 further comprises the second column 22, the second column 22 is arranged in the vertical direction on the first column 21 in a sliding mode, the movement output end of the lifting driving part 23 is fixedly connected with the second column 22, and the transmission wheel 24 is rotatably installed on the second column 22.

[0052] The transmission wheel 24 is rotatably installed on the second column 22, which can be understood as that the wheel shaft of the transmission wheel 24 is installed on the second column 22, the transmission wheel 24 can rotate relative to the second column 22, and the transmission wheel 24 and the second column 22 move synchronously in the vertical direction. When the lifting driving part 23 works, the second column 22 moves a distance L relative to the first column 21, correspondingly, the transmission wheel 24 moves a distance L relative to the first column 21, the cross beam assembly 40 moves a distance 2L relative to the first column 21, and the cross beam assembly 40 moves a distance L relative to the second column 22.

[0053] The second column 22 provides a mounting position for the transmission wheel 24, and can also make the transmission wheel 24 more stable in vertical movement relative to the first column 21, and provide a guide for the lifting movement of the transmission wheel 24.

[0054] In some embodiments, the number of transmission wheels 24 is two, which are arranged on opposite sides of the second column 22, and the number of transmission chains 25 is also two, which pull the beam assembly 40 up and down.

[0055] In some embodiments, referring to Figure 3 , the second column 22 is in the form of a frame, and the second column 22 is sleeved on the outside of the first column 21. The lifting drive 23 is fixed to the first column 21, and correspondingly, the lifting drive 23 is also located inside the second column 22. In this way, the internal space of the second column 22 can be fully utilized, and the space layout is more compact.

[0056] In some embodiments of the utility model, referring to Figure 3 and Figure 4 , the second column 22 includes two vertically arranged vertical plates 221 and a connecting plate 222 connecting the two vertical plates 221, and the two vertical plates 221 are arranged on opposite sides of the first column 21. The beam assembly 40 is fixed to the transmission chain 25 through the mounting bracket 26, and the mounting bracket 26 and the vertical plate 221 are provided with a guide wheel 263.

[0057] The second column 22 includes two vertical plates 221 and a connecting plate 222, and the vertical plate 221 is vertically arranged. The two vertical plates 221 can be connected into a whole through the connecting plate 222. The beam assembly 40 is fixed to the transmission chain 25 through the mounting bracket 26, which can be understood as that the beam assembly 40 is fixed to the mounting bracket 26, and the mounting bracket 26 is fixed to one end of the transmission chain 25. The mounting bracket 26 and the vertical plate 221 are provided with a guide wheel 263, which can be arranged on the mounting bracket 26 or the vertical plate 221, so that the mounting bracket 26 can stably move relative to the vertical plate 221.

[0058] By arranging the second column 22 as two vertical plates 221 and a connecting plate 222, the opposite sides of the first column 21 are respectively slidably connected with the two vertical plates 221, which can improve the stability of the second column 22 when moving up and down. By arranging the guide wheel 263 between the mounting bracket 26 and the vertical plate 221, the stability of the beam assembly 40 when moving up and down can be improved.

[0059] In some embodiments, the connecting plate 222 is vertically arranged, and when the number of connecting plates 222 is two, the two connecting plates 222 and the two vertical plates 221 can be connected to form a structure with a frame-shaped cross section.

[0060] In some embodiments, the connecting plate 222 is horizontally arranged, and the connecting plate 222 can be arranged at the top of the second stand column 22, and the transmission wheel 24 can be mounted on the connecting plate 222.

[0061] In some embodiments, the second stand column 22 further comprises a cover structure arranged on the top of the two stand plates 221, and the cover structure can shield the transmission wheel 24 and the transmission chain 25 structure, so as to prevent foreign matters from falling into the transmission wheel 24 and the transmission chain 25, and also has a certain dustproof effect.

[0062] In some embodiments of the utility model, please refer to Figure 3 and Figure 4 , the stand plate 221 comprises a first side wall part 2211 and a second side wall part 2212 bently connected with the first side wall part 2211, the connecting part of the first side wall part 2211 and the second side wall part 2212 forms an L-shaped limiting angle, the first stand column 21 extends towards the stand plate 221 to form a limiting part 211 matched with the limiting angle, and one end of the transmission chain 25 is fixed to the limiting part 211; the mounting frame 26 comprises a first mounting plate 261 and two second mounting plates 262 connected to opposite sides of the first mounting plate 261 respectively, the crossbeam assembly 40 is fixed to the first mounting plate 261, and the first mounting plate 261 and the first side wall part 2211 and the second mounting plate 262 and the second side wall part 2212 are both provided with a guide wheel 263, the first side wall part 2211 is provided with a sliding groove 2213 extending in the vertical direction, and the radial sides of the guide wheel 263 between the first mounting plate 261 and the first side wall part 2211 are clamped in the sliding groove 2213.

[0063] The bent connection between the first side wall part 2211 and the second side wall part 2212 means that an included angle is formed between the first side wall part 2211 and the second side wall part 2212, and the included angle can be a right angle, an acute angle or an obtuse angle. The angle corresponding to the L-shaped limiting angle can be a right angle, an acute angle or an obtuse angle. The limiting part 211 extends into the inside of the limiting angle and abuts against the inner wall (the wall surface of the first side wall part 2211 and the second side wall part 2212) of the limiting angle, thereby guiding the movement of the second stand column 22. The circumferential direction of the guide wheel 263 between the first mounting plate 261 and the first side wall part 2211 can be provided with an annular clamping groove 2631, and when the guide wheel 263 is located in the sliding groove 2213, the opposite sides of the sliding groove 2213 abut against two opposite positions (radial sides) of the outer circumferential wall of the clamping groove 2631.

[0064] The cooperation of the limiting angle formed by the vertical plate 221 and the limiting portion 211 on the first stand 21 makes the second stand 22 more stable when moving up and down. By arranging the guide wheels 263 between the first mounting plate 261 and the first side wall portion 2211 and between the second mounting plate 262 and the second side wall portion 2212, the up and down movement of the mounting rack 26 relative to the second stand 22 is more stable, and the sliding friction between the mounting rack 26 and the second stand 22 is converted into rolling friction, so that the movement of the mounting rack 26 and the beam assembly 40 is more smooth.

[0065] In some embodiments, the opposite sides of the vertical plate 221 are connected with the second side wall portions 2212, so that the second stand 22 has four second side wall portions 2212, and correspondingly, four limiting angles are formed. The number of limiting portions 211 is the same as the number of limiting angles, and the number of limiting portions 211 is also four. The four corner positions of the second stand 22 are guided by the limiting portions 211 of the first stand 21, so that the up and down movement of the second stand 22 is more stable.

[0066] Optionally, the four corners of the top plate of the first stand 21 are respectively extended to form four limiting portions 211, which are one-to-one matched with the four limiting angles.

[0067] In some embodiments, the first mounting plate 261 and the second mounting plate 262 are connected vertically, so that the mounting rack 26 is arranged in a U-shaped rack, and the cooperation between the mounting rack 26 and the second stand 22 is more stable, and the guiding cooperation structure is arranged between the mounting rack 26 and the three side surfaces of the second stand 22.

[0068] In some embodiments, the guide wheels 263 are installed on the mounting rack 26, and the guide wheels 263 can rotate relative to the mounting rack 26. Alternatively, the guide wheels 263 are installed on the second stand 22, and the guide wheels 263 can rotate relative to the second stand 22.

[0069] In some embodiments, a plurality of guide wheels 263 are arranged between one of the first mounting plates 261 and the first side wall portions 2211, and a plurality of guide wheels 263 are arranged between the second mounting plate 262 and the second side wall portions 2212. The more the number of guide wheels 263, the more stable the movement of the second stand 22 relative to the first stand 21.

[0070] In some embodiments of the utility model, please refer to Figure 5 , the beam assembly 40 comprises a first beam 41, a second beam 42 rotatably connected with the first beam 41, a first elastic member 451 connected at two ends to the first beam 41 and the second beam 42 respectively, a first locking assembly 43 and a second locking assembly 44, the beam assembly 40 has a use state and a folding state, the first locking assembly 43 is used for locking the beam assembly 40 in the use state, and the second locking assembly 44 is used for locking the beam assembly 40 in the folding state.

[0071] The second crossbeam 42 is rotatably connected to the first crossbeam 41. The first crossbeam 41 and the second crossbeam 42 are arranged in a straight line so that when the crossbeam assembly 40 is fully extended ( Figure 5 The first crossbeam 41 and the second crossbeam 42 are folded to form an angle or overlap each other, which is called the folded state. During the rotation of the second crossbeam 42 relative to the first crossbeam 41, the first elastic member 451 can provide thrust for the rotation of the second crossbeam 42, and can also make the rotation of the second crossbeam 42 smoother and more stable.

[0072] The second crossbeam 42 can rotate relative to the first crossbeam 41, allowing the crossbeam assembly 40 to be folded and stored, facilitating the production, transportation, and storage of the crossbeam assembly 40. The first locking assembly 43 and the second locking assembly 44 enable the crossbeam assembly 40 to be stably maintained in the use state or the folded state.

[0073] In some embodiments, the first elastic member 451 is a gas spring or a hydraulic spring, which provides sufficient auxiliary force for the folding, storage and unfolding of the second crossbeam 42 .

[0074] In some embodiments, see Figures 5 to 10 The first locking assembly 43 and the second locking assembly 44 are respectively disposed on opposite sides of the crossbeam assembly 40 to prevent interference between the first locking assembly 43 and the second locking assembly 44. For example, the first locking assembly 43 is disposed on the upper side of the crossbeam assembly 40, and the second locking assembly 44 is disposed on the lower side of the crossbeam assembly 40.

[0075] In some embodiments of the present invention, please refer to Figure 5 A gyroscope 452 is provided on the first beam 41 , and the gyroscope 452 can detect the placement angle of the beam assembly 40 .

[0076] Optionally, there are two gyroscopes 452 , which are respectively disposed on opposite sides of the column assembly 20 , thereby making the detection of the beam assembly 40 more accurate.

[0077] In some embodiments, see Figures 5 to 7 The first locking assembly 43 includes a first lock seat 431 fixed to the first crossbeam 41, a second lock seat 432 fixed to the second crossbeam 42, a hinge shaft 433, two pressing rods 434 hinged to each other through the hinge shaft 433, and a second elastic member whose two ends are respectively connected to the two pressing rods 434, one end of the pressing rod 434 has a first clamping portion 4341, the second lock seat 432 has a second clamping portion 4321 respectively clamped with the two first clamping portions 4341, and the other end of the pressing rod 434 has a first button portion 4342 for pressing.

[0078] The first lock seat 431 and the second lock seat 432 are fixed to the first cross beam 41 and the second cross beam 42 respectively, the hinge shaft 433 is arranged on the first lock seat 431, and the two pressing rods 434 are hingedly connected to each other through the hinge shaft 433. One end of the pressing rod 434 is provided with a first clamping portion 4341, the first clamping portion 4341 is used for clamping with a second clamping portion 4321 of the second lock seat 432, and the other end of the pressing rod 434 is provided with a first pressing portion 4342, the first pressing portion 4342 is used for pressing. Specifically, in the use state of the cross beam assembly 40, the first clamping portion 4341 and the second clamping portion 4321 are clamped with each other, so that the second cross beam 42 is located in the length extension direction of the first cross beam 41. When it is needed to store the cross beam assembly 40, two fingers press the two first pressing portions 4342 at the same time, so that the two first clamping portions 4341 are separated from the second clamping portion 4321 respectively, and then the second cross beam 42 is rotated to the folding state of the cross beam assembly 40.

[0079] By arranging the two pressing rods 434 hingedly connected to each other, the first clamping portion 4341 on the pressing rod 434 can be clamped on the second clamping portion 4321 of the second lock seat 432 or separated from the second clamping portion 4321, thereby realizing the locking and unlocking of the cross beam assembly 40 in the use state.

[0080] In some embodiments, referring to Figure 6 and Figure 7 , the opposite sides of the first lock seat 431 are both provided with a first pressing hole 4311, the first pressing portion 4342 is located in the corresponding first pressing hole 4311, so that the first pressing portion 4342 is exposed, facilitating the pressing of the user, and pressing the two first pressing portions 4342 at the same time can unlock the cross beam assembly 40 in the use state.

[0081] In some embodiments, referring to Figure 7 , the same end of the two pressing rods 434 extends oppositely to form a first clamping portion 4341 in the shape of a hook, the second lock seat 432 extends towards the first lock seat 431 to form a second clamping portion 4321, the opposite sides of the second clamping portion 4321 are concave to form a clamping groove, and the second clamping portion 4321 is in the shape of an arrow, so that the two first clamping portions 4341 can be more smoothly clamped into the inside of the clamping groove along the two sides of the pincer-shaped structure.

[0082] In some embodiments, referring to Figure 7 , the length direction of the hinge shaft 433 is parallel to the vertical direction, and the rotation axis of the pressing rod 434 is also the vertical direction, which does not affect the folding and unfolding of the second cross beam 42.

[0083] In some embodiments, the second elastic member is a torsion spring, and the second elastic member is sleeved on the hinge shaft 433, so as to provide a pressing force for the clamping of the first clamping portion 4341 and the second clamping portion 4321.

[0084] In some embodiments of the utility model, please refer to Figures 8 to 10 , the second locking assembly 44 includes the third lock seat 441 fixed to the first crossbeam 41, the fourth lock seat 442 fixed to the second crossbeam 42, the sliding structure 443 slidingly arranged in the third lock seat 441 and the third elastic member 444 connected to the sliding structure 443 and the third lock seat 441 at both ends respectively, the third lock seat 441 and the fourth lock seat 442 are hingedly connected to each other, the sliding structure 443 has the third clamping portion 4431 and the second button portion 4432 for pressing, and the fourth lock seat 442 has the fourth clamping portion 4421 clamped with the third clamping portion 4431;When the third clamping portion 4431 and the fourth clamping portion 4421 are clamped, the first crossbeam 41 and the second crossbeam 42 are perpendicular to each other.

[0085] The third lock seat 441 and the fourth lock seat 442 are fixed to the first crossbeam 41 and the second crossbeam 42 respectively, and the sliding structure 443 can slide relative to the third lock seat 441. When the crossbeam assembly 40 is in the use state, the third clamping portion 4431 and the fourth clamping portion 4421 are in the state of being separated from each other, when the crossbeam assembly 40 needs to be stored, the first locking assembly 43 is unlocked, then the second crossbeam 42 is rotated to be perpendicular to the first crossbeam 41, and the third clamping portion 4431 and the fourth clamping portion 4421 are clamped with each other. When the crossbeam assembly 40 needs to be converted into the use state, the second button portion 4432 is pressed, the third elastic member 444 is compressed, the third clamping portion 4431 and the fourth clamping portion 4421 are separated from each other, then the second crossbeam 42 is rotated, so that the crossbeam assembly 40 is converted into the use state, and the first clamping portion 4341 and the second clamping portion 4321 are clamped with each other.

[0086] By setting the sliding structure 443 capable of sliding relative to the third lock seat 441, the third clamping portion 4431 and the fourth clamping portion 4421 can be clamped with each other or separated from each other, thereby realizing the locking and unlocking of the crossbeam assembly 40 in the folded state.

[0087] In some embodiments, please refer to Figure 10 , the third lock seat 441 includes the lock seat body 4411 and the lock seat cover 4412, the third elastic member 444 and the sliding structure 443 are arranged in the interior of the lock seat body 4411, the lock seat cover 4412 is provided with the second button hole 4413, the second button portion 4432 extends into the second button hole 4413, and the user can press the second button portion 4432 conveniently.

[0088] In some embodiments, please refer to Figure 10The moving direction of the sliding structure 443 is a vertical direction, and when the sliding structure 443 moves in the vertical direction, the third clamping part 4431 and the fourth clamping part 4421 can be clamped with each other or separated from each other, and meanwhile, the unfolding and folding of the beam assembly 40 are not affected.

[0089] In some embodiments of the present application, please refer to Figure 5 and Figure 8 The number of the second beams 42 is two, and each of the second beams 42 is rotationally connected to the two ends of the first beam 41. The second beam 42 away from the first beam 41 is fixed with a shooting camera 50. It can be understood that the two ends of the beam assembly 40 can be folded, so that the length of the beam assembly 40 is shortened, and the beam assembly 40 is a symmetrical structure, so that the stress is balanced even in the folded state.

[0090] Optionally, the first beam 41 is symmetrically arranged relative to the column assembly 20, and the two second beams 42 are also symmetrically arranged relative to the column assembly 20, so as to facilitate the adjustment of the position and angle of the shooting camera 50.

[0091] In other embodiments, the number of the second beams 42 can also be one, and the second beam 42 is arranged at one end of the first beam 41.

[0092] In some embodiments of the present application, the column assembly 20 can move relative to the base assembly 10 in a first direction and a second direction. The first direction and the second direction are both horizontal directions, and the first direction and the second direction are perpendicular to each other. That is, the column assembly 20 can move relative to the base assembly 10 in the horizontal direction, so as to adjust the front and back and left and right positions of the column assembly 20. An angle adjusting mechanism 30 is arranged between the column assembly 20 and the beam assembly 40, and the angle adjusting mechanism 30 can adjust the pitch angle, roll angle and yaw angle of the beam assembly 40. In this way, the position of the beam assembly 40 in the height direction can be adjusted by the column assembly 20, the front and back and left and right positions of the beam assembly 40 can be adjusted by the base assembly 10, and the three angles of the beam assembly 40 can be adjusted by the angle adjusting mechanism 30, so as to realize the six-degree-of-freedom adjustment of the beam assembly 40, and make the beam assembly 40 meet the use requirements.

[0093] Among them, the first direction is the X direction, the second direction is the Y direction, and the vertical direction is the Z direction. The pitch angle of the beam assembly 40 is understood as the included angle between the X direction, the roll angle of the beam assembly 40 is understood as the included angle between the Y direction, and the yaw angle of the beam assembly 40 is understood as the included angle between the Z direction. It should be noted that the X direction is the front and back direction, and the Y direction is the left and right direction; or, the X direction is the left and right direction, and the Y direction is the front and back direction.

[0094] In some embodiments of the present application, please refer to Figure 11 and Figure 12The base assembly 10 comprises a first horizontal moving mechanism 11, a second horizontal moving mechanism 12 and a rotating mechanism 13 connected in sequence, the movement output end of the rotating mechanism 13 is fixedly connected with the first vertical column 21, and the rotation axis of the movement output end of the rotating mechanism 13 is in the vertical direction, the first horizontal moving mechanism 11 is used for driving the second horizontal moving mechanism 12, the rotating mechanism 13 and the vertical column assembly 20 to move in a first direction, the second horizontal moving mechanism 12 is used for driving the rotating mechanism 13 and the vertical column assembly 20 to move in a second direction, the first direction and the second direction are perpendicular to each other and are both in the horizontal direction; the angle adjusting mechanism 30 is arranged between the vertical column assembly 20 and the cross beam assembly 40, and the angle adjusting mechanism 30 is used for at least adjusting the pitch angle and the roll angle of the cross beam assembly 40.

[0095] The first horizontal moving mechanism 11, the second horizontal moving mechanism 12 and the rotating mechanism 13 are drivingly connected, which can be understood as that the movement output end of the first horizontal moving mechanism 11 is connected with the second horizontal moving mechanism 12, and the movement output end of the second horizontal moving mechanism 12 is connected with the rotating mechanism 13. In this way, when the first horizontal moving mechanism 11 works, the second horizontal moving mechanism 12, the rotating mechanism 13, the vertical column assembly 20 and the cross beam assembly 40 all move in the first direction, the movement output end of the first horizontal moving mechanism 11 outputs linear motion, and the first direction is the X direction. When the second horizontal moving mechanism 12 works, the rotating mechanism 13, the vertical column assembly 20 and the cross beam assembly 40 all move in the second direction, the movement output end of the second horizontal moving mechanism 12 outputs linear motion, and the second direction is the Y direction. When the rotating mechanism 13 works, the movement output end of the rotating mechanism 13 outputs the motion of rotating around the vertical direction, so that the vertical column assembly 20 and the cross beam assembly 40 all rotate around the vertical direction. In this way, the position of the cross beam assembly 40 in the X direction and the Y direction and the yaw angle of the cross beam assembly 40 can be adjusted through the base assembly 10. The position of the cross beam assembly 40 in the Z direction can be adjusted through the vertical column assembly 20, and the angle adjusting mechanism 30 is used for at least adjusting the pitch angle and the roll angle of the cross beam assembly 40. In this way, the six-degree-of-freedom adjustment of the cross beam assembly 40 is realized.

[0096] The first horizontal moving mechanism 11, the second horizontal moving mechanism 12 and the rotating mechanism 13 are arranged in the interior of the base assembly 10, which can realize the horizontal position adjustment of the vertical column assembly 20 and the cross beam assembly 40 and the yaw angle adjustment of the cross beam assembly 40. The angle adjusting mechanism 30 between the vertical column assembly 20 and the cross beam assembly 40 only needs to adjust the pitch angle and the roll angle of the cross beam assembly 40, so that the structure of the angle adjusting mechanism 30 is simple, which is beneficial to the miniaturization of the angle adjusting mechanism 30, but occupies more space between the vertical column assembly 20 and the cross beam assembly 40, and fully utilizes the interior space of the base assembly 10.

[0097] In some embodiments, please refer to Figure 12, the first horizontal moving mechanism 11 is a second screw assembly, the second screw assembly comprises a second motor, a second screw, a second nut block and a second sliding rail, the second motor outputs a rotating motion to drive the second screw to rotate, the second nut block is threadedly connected to the second screw, and the second nut block is slidingly arranged on the second sliding rail. Under the rotation of the second screw, the second nut block slides along the second sliding rail in a first direction. The second nut block is a motion output end of the second screw assembly, and the second nut block is fixedly connected with a fixed part (such as a mounting plate or the like) of the second horizontal moving mechanism 12.

[0098] In some embodiments, the first horizontal moving mechanism 11 is a gear and rack assembly, and a rack is a motion output end of the first horizontal moving mechanism 11, and the rack is fixedly connected with a fixed part (such as a mounting plate or the like) of the second horizontal moving mechanism 12.

[0099] In some embodiments, please refer to Figure 12 , the second horizontal moving mechanism 12 is a third screw assembly, the third screw assembly comprises a third motor, a third screw, a third nut block and a third sliding rail, the third motor outputs a rotating motion to drive the third screw to rotate, the third nut block is threadedly connected to the third screw, and the third nut block is slidingly arranged on the third sliding rail. Under the rotation of the third screw, the third nut block slides along the third sliding rail in a first direction. The third nut block is a motion output end of the third screw assembly, and the third nut block is fixedly connected with a fixed part (such as a mounting plate or the like) of the rotating mechanism 13.

[0100] In some embodiments, the second horizontal moving mechanism 12 is a gear and rack assembly, and a rack is a motion output end of the second horizontal moving mechanism 12, and the rack is fixedly connected with a fixed part (such as a mounting plate or the like) of the rotating mechanism 13.

[0101] In some embodiments, please refer to Figure 12 , the rotating mechanism 13 comprises a rotating motor, a worm and a worm wheel, the worm is fixedly connected with a motion output end of the rotating motor, the worm wheel is engaged with the worm, the rotating motor outputs a rotating motion to drive the worm to rotate, and the worm and the worm wheel are matched to drive the worm wheel to rotate. The worm wheel is a motion output end of the rotating mechanism 13, and the worm wheel is connected with the column assembly 20 to drive the column assembly 20 and the beam assembly 40 to rotate around a vertical direction. The worm and the worm wheel have a large transmission ratio and self-locking characteristics, can drive the column assembly 20 and the beam assembly 40 to rotate more stably, and can also change the direction of the motion output shaft of the rotating mechanism 13, facilitating the structural layout inside the base assembly 10.

[0102] In some embodiments, the rotating mechanism 13 comprises a rotating motor, and a motion output end of the rotating motor is directly connected with the column assembly 20 to drive the column assembly 20 and the beam assembly 40 to rotate around a vertical direction.

[0103] In some embodiments, please refer to Figure 11 and Figure 12 The base assembly 10 further comprises a base shell 142, a column base 141 fixedly connected with the bottom of the first column 21, and the column base 141 is fixedly connected with the movement output end of the rotating mechanism 13. The top of the base shell 142 is provided with a movable window, and the column base 141 blocks the movable window. In this way, during the movement of the column assembly 20 relative to the base shell 142, the movable window is always kept in a blocked state, preventing the mechanisms inside the base assembly 10 from being exposed.

[0104] In some embodiments of the utility model, please refer to Figure 13 and Figure 14 The angle adjusting mechanism 30 comprises an angle fixing base 31, an angle adjusting base 32, a rotating seat rotatably connected to the angle adjusting base 32, a pitch adjusting assembly 33 and a roll adjusting assembly 34 both arranged on the angle adjusting base 32, and the rotating seat is fixedly connected with the cross beam assembly 40; the pitch adjusting assembly 33 comprises a first rotating hand wheel 331, a first bevel gear assembly 332 and a first worm gear assembly 333 connected in sequence, and the first worm gear assembly 333 is fixedly connected with the rotating seat; the roll adjusting assembly 34 comprises a second rotating hand wheel 341, a second bevel gear assembly 342, a first lead screw assembly 343 and a rotating connecting rod 344 connected in sequence, one end of the rotating connecting rod 344 is rotatably connected with the linear output end of the first lead screw assembly 343, and the other end of the rotating connecting rod 344 is rotatably connected with the angle fixing base 31.

[0105] The angle fixing base 31 is slidably connected with the column assembly 20, and the angle fixing base 31 can be fixed on the mounting frame 26. The angle adjusting base 32 is rotatably connected with the angle fixing base 31 through the rotating connecting rod 344. Specifically, one end of the rotating connecting rod 344 is rotatably connected with the linear output end of the first lead screw assembly 343, and the first lead screw assembly 343 is fixed on the angle adjusting base 32. The other end of the rotating connecting rod 344 is rotatably connected with the angle fixing base 31. When the second rotating hand wheel 341 is rotated, the second bevel gear assembly 342 and the first lead screw assembly 343 work, the first lead screw assembly 343 outputs linear motion to the rotating connecting rod 344, the rotating connecting rod 344 rotates, and then the angle adjusting base 32 is rotated relative to the angle fixing base 31, realizing the pitch motion of the cross beam assembly 40. The second rotating hand wheel 341, the second bevel gear assembly 342, the first lead screw assembly 343 and the rotating connecting rod 344 are connected in sequence, which means that the movement output end of the second rotating hand wheel 341 is fixedly connected with the movement input end of the second bevel gear assembly 342, the movement output end of the second bevel gear assembly 342 is fixedly connected with the movement input end of the first lead screw assembly 343, and the movement output end of the first lead screw assembly 343 is rotatably connected with the rotating connecting rod 344.

[0106] When the first rotating hand wheel 331 is forced to rotate, the first bevel gear assembly 332 and the first worm gear assembly 333 work, the movement output end of the first worm gear assembly 333 is fixedly connected with the rotating seat, so that the rotating seat rotates, and in turn drives the cross beam assembly 40 to rotate, thereby realizing the roll of the cross beam assembly 40.

[0107] The rotating seat is rotated around the Y direction by rotating the first rotating hand wheel 331, thereby realizing the roll of the cross beam assembly 40. The rotating seat is rotated around the X direction by rotating the second rotating hand wheel 341, thereby realizing the pitch of the cross beam assembly 40. Moreover, the pitch adjusting assembly 33 and the roll adjusting assembly 34 are arranged on the angle adjusting seat 32, the movement direction in the transmission chain 25 is changed by the first bevel gear assembly 332, the second bevel gear assembly 342 and the first worm gear assembly 333, so that the pitch adjusting assembly 33 and the roll adjusting assembly 34 are both flat structures, the overall thickness of the angle adjusting assembly is smaller, the structure is more compact, and the occupied space is smaller.

[0108] In some embodiments, the rotating seat and the angle adjusting seat 32 are connected through a rotating bearing, so that the rotating seat rotates more smoothly and has smaller resistance relative to the angle adjusting seat 32.

[0109] In some embodiments, referring to Figure 14 , the first bevel gear assembly 332 includes the first bevel gear 3321 and the second bevel gear 3322 which are engaged with each other, the first worm gear assembly 333 includes the first worm gear 3332 and the first worm 3331 which are engaged with each other, the first rotating hand wheel 331 is coaxially fixedly connected with the first bevel gear 3321, the second bevel gear 3322 is coaxially fixedly connected with the first worm 3331, and the first worm gear 3332 is fixedly connected with the rotating seat. The rotation axis of the first rotating hand wheel 331 is parallel to the X direction, the rotation axes of the first worm 3331 and the second bevel gear 3322 are parallel to the Z direction, and the rotation axis of the first worm gear 3332 is parallel to the Y direction, thereby realizing the flatness of the pitch adjusting assembly 33.

[0110] In some embodiments, referring to Figure 14The second bevel gear assembly 342 comprises a third bevel gear 3421 and a fourth bevel gear 3422 which are engaged with each other, the first screw rod assembly 343 comprises a first screw rod 3431, a first nut block 3432 and a first slide rail 3433, the first nut block 3432 is threadedly connected to the first screw rod 3431, and the first nut block 3432 is slidingly connected to the first slide rail 3433, the second rotating hand wheel 341 is coaxially and fixedly connected to the third bevel gear 3421, the fourth bevel gear 3422 is coaxially and fixedly connected to the first screw rod 3431, and one end of the rotating connecting rod 344 is rotatably connected to the first nut block 3432. The rotating shaft of the second rotating hand wheel 341 is parallel to the X direction, the rotating shafts of the first screw rod 3431 and the fourth bevel gear 3422 are parallel to the Z direction, and the moving direction of the first nut block 3432 is the Z direction, so that the flattening of the roll adjusting assembly 34 is realized.

[0111] In other embodiments, the first rotating hand wheel 331 in the pitch adjusting assembly 33 can also be replaced by a power component such as an electric motor which is driven by electricity. The second rotating hand wheel 341 in the roll adjusting assembly 34 can also be replaced by a power component such as an electric motor which is driven by electricity.

[0112] In some embodiments of the utility model, please refer to Figure 13 The four-wheel positioning device further comprises a height range finder 352 and a horizontal range finder 351. The height range finder 352 is used for detecting the height position of the cross beam assembly 40, and the horizontal range finder 351 is used for detecting the horizontal distance between the cross beam assembly 40 and the range finding target. The horizontal range finder 351 can be fixed to the bottom of the angle adjusting seat 32, and the height range finder 352 can be fixed to the side of the angle fixing seat 31. The horizontal range finder 351 and the height range finder 352 can both be laser range finders which emit laser to the target and reflect after reaching the target, receive the reflected laser, and calculate the distance between the laser range finder and the target through the time difference between the emission and reception of the laser.

[0113] The above merely describes the preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A four-wheel alignment apparatus, characterized by: The application relates to a shooting camera, which comprises a base assembly, a column assembly arranged on the base assembly, a flat plate mounting structure, a crossbeam assembly slidingly arranged on the column assembly and a shooting camera fixed to the crossbeam assembly, the column assembly comprises a first column, a lifting driving element fixedly connected with the first column, a transmission wheel driven by the lifting driving element to move up and down, a transmission chain arranged around the transmission wheel, the bottom end of the first column is connected with the base assembly, the flat plate mounting structure is fixed to the first column, one end of the transmission chain is fixedly arranged, and the other end of the transmission chain is connected with the crossbeam assembly.

2. The four-wheel alignment apparatus of claim 1, wherein: The column assembly further comprises a second column, the second column is slidingly arranged on the first column in the vertical direction, the movement output end of the lifting driving element is fixedly connected with the second column, and the transmission wheel is rotatably arranged on the second column.

3. The four-wheel alignment apparatus of claim 2, wherein: The second column comprises two stand plates arranged at intervals and a connecting plate connecting the two stand plates, the two stand plates are arranged on opposite sides of the first column respectively, the crossbeam assembly is fixed to the transmission chain through a mounting frame, and a guide wheel is arranged between the mounting frame and the stand plate.

4. The four wheel alignment apparatus of claim 3, wherein: The stand plate comprises a first side wall part and a second side wall part bently connected with the first side wall part, a limiting corner in L shape is formed at the connection position of the first side wall part and the second side wall part, the first column extends towards the stand plate to form a limiting part matched with the limiting corner, and one end of the transmission chain is fixed to the limiting part; the mounting frame comprises a first mounting plate and two second mounting plates connected with opposite sides of the first mounting plate respectively, the crossbeam assembly is fixed to the first mounting plate, the guide wheels are arranged between the first mounting plate and the first side wall part and between the second mounting plate and the second side wall part, the first side wall part is provided with a sliding groove extending in the vertical direction, and the radial sides of the guide wheels between the first mounting plate and the first side wall part are clamped in the sliding groove.

5. The four wheel alignment apparatus of claim 1, wherein: The crossbeam assembly comprises a first crossbeam, a second crossbeam rotatably connected with the first crossbeam, a first elastic element with two ends connected with the first crossbeam and the second crossbeam respectively, a first locking assembly and a second locking assembly, the crossbeam assembly has a use state and a folding state, the first locking assembly is used for locking the crossbeam assembly in the use state, and the second locking assembly is used for locking the crossbeam assembly in the folding state.

6. The four wheel alignment apparatus of claim 5, wherein: The first locking assembly comprises a first lock seat fixed to the first crossbeam, a second lock seat fixed to the second crossbeam, a hinge shaft, two pressing rods hingedly connected with each other through the hinge shaft and a second elastic element with two ends connected with the two pressing rods respectively, one end of the pressing rod is provided with a first clamping part, the second lock seat is provided with a second clamping part clamped with the two first clamping parts respectively, and the other end of the pressing rod is provided with a first pressing key part used for pressing.

7. The four wheel alignment apparatus of claim 5, wherein: The second locking assembly comprises a third lock seat fixed to the first cross beam, a fourth lock seat fixed to the second cross beam, a sliding structure slidingly arranged in the third lock seat, and a third elastic member having two ends connected to the sliding structure and the third lock seat respectively, the third lock seat and the fourth lock seat are hingedly connected to each other, the sliding structure has a third clamping portion and a second button portion for pressing, and the fourth lock seat has a fourth clamping portion clamped with the third clamping portion; when the third clamping portion and the fourth clamping portion are clamped, the first cross beam and the second cross beam are perpendicular to each other.

8. The four wheel alignment apparatus of claim 5, wherein: The number of the second cross beams is two, and the two ends of the second cross beams are rotatably connected to the two ends of the first cross beam, and the second cross beam away from the first cross beam is fixed with the shooting camera.

9. A four wheel alignment apparatus as claimed in any one of claims 1 to 8 wherein: The base assembly comprises a first horizontal moving mechanism, a second horizontal moving mechanism and a rotating mechanism connected in sequence, the rotating mechanism is fixedly connected to the first vertical column through a movement output end, and a rotation axis of the movement output end of the rotating mechanism is in a vertical direction, the first horizontal moving mechanism is used for driving the second horizontal moving mechanism, the rotating mechanism and the vertical column assembly to move in a first direction, the second horizontal moving mechanism is used for driving the rotating mechanism and the vertical column assembly to move in a second direction, the first direction and the second direction are perpendicular to each other and are both in a horizontal direction; an angle adjusting mechanism is arranged between the vertical column assembly and the cross beam assembly, and the angle adjusting mechanism is used for adjusting at least a pitch angle and a roll angle of the cross beam assembly.

10. The four wheel alignment apparatus of claim 9, wherein: The angle adjusting mechanism comprises an angle fixing seat, an angle adjusting seat, a rotating seat rotatably connected to the angle adjusting seat, a pitch adjusting assembly and a roll adjusting assembly arranged on the angle adjusting seat, and the rotating seat is fixedly connected to the cross beam assembly; the pitch adjusting assembly comprises a first rotating hand wheel, a first bevel gear assembly and a first worm and gear assembly connected in sequence, and a first worm wheel of the first worm and gear assembly is fixedly connected to the rotating seat; the roll adjusting assembly comprises a second rotating hand wheel, a second bevel gear assembly, a first lead screw assembly and a rotating connecting rod connected in sequence, one end of the rotating connecting rod is rotatably connected to a linear output end of the first lead screw assembly, and the other end of the rotating connecting rod is rotatably connected to the angle fixing seat.

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