CN220945160U - Angle stepless adjustment butt joint device - Google Patents

Abstract

The utility model relates to an angle stepless regulation butting device, which comprises an angle regulation tensioning mechanism, a rotary supporting mechanism, a movable supporting mechanism, a lifting mechanism and a supporting frame body, wherein the supporting frame body comprises a horizontal supporting frame and a vertical supporting frame which are fixedly connected, the horizontal supporting frame is provided with the lifting mechanism, one end of the rotary supporting mechanism is hinged with the vertical supporting frame, and the lifting mechanism is in supporting connection with the bottom of the rotary supporting mechanism and can drive the rotary supporting mechanism to swing up and down; the movable supporting mechanism is arranged on the horizontal supporting frame and can move up and down, and the movable supporting mechanism is positioned on one side of the rotary supporting mechanism and is arranged at intervals with the rotary supporting mechanism; the angle adjusting and tensioning mechanism is arranged at the top of the vertical supporting frame. The angle stepless adjustment butting device can realize stepless adjustment of the angle and the height of the stalk feeding mechanism assembly, and complete butting of the stalk feeding mechanism assembly and the whole machine.

Description

Angle stepless adjustment butt joint device

Technical Field

The utility model relates to the technical field related to agricultural machinery, in particular to an angle stepless adjustment butting device.

Background

At present, in order to improve the quality of silage machine products, special assembly tools are designed for the assembly of silage machine core components in the production verification and later maintenance stages of the silage machine. In the silage machine core module, the stalk feeding mechanism assembly is arranged below the cab and assembled after the cab is arranged in a falling mode, a hoisting operation space is not needed, and hoisting operation conditions are not needed when the stalk feeding mechanism assembly is butted with the whole machine after maintenance of a user.

Disclosure of utility model

The utility model provides an angle stepless adjusting butt joint device for solving one or more of the technical problems in the prior art.

The technical scheme for solving the technical problems is as follows: the angle stepless adjusting butt joint device comprises an angle adjusting tensioning mechanism, a rotary supporting mechanism, a movable supporting mechanism, a lifting mechanism and a supporting frame body, wherein the supporting frame body comprises a horizontal supporting frame and a vertical supporting frame which are fixedly connected, the horizontal supporting frame is provided with the lifting mechanism, one end of the rotary supporting mechanism is hinged with the vertical supporting frame, and the lifting mechanism is in supporting connection with the bottom of the rotary supporting mechanism and can drive the rotary supporting mechanism to swing up and down; the movable supporting mechanism is arranged on the horizontal supporting frame and can move up and down, and the movable supporting mechanism is positioned on one side of the rotary supporting mechanism and is arranged at intervals with the rotary supporting mechanism; the angle adjusting and tensioning mechanism is mounted at the top of the vertical supporting frame.

The beneficial effects of the utility model are as follows: according to the angle stepless adjusting and butting device, the angle adjusting and tensioning mechanism, the rotary supporting mechanism, the movable supporting mechanism, the lifting mechanism and the supporting frame body are arranged, so that the angle and the height of the stalk feeding mechanism assembly can be stepless adjusted, and the stalk feeding mechanism assembly is in butting with the whole machine. The angle stepless adjustment butting device can improve the assembly efficiency and the safety and reliability of the stalk feeding mechanism assembly when being in butting connection with the whole machine. The angle stepless adjustment butting device can solve the problems that an existing silage machine stalk feeding mechanism assembly is difficult to dock and assemble with a complete machine, and the problems that the assembly link process is complex and difficult, the time consumption is high, the number of people is high, the danger coefficient of docking work is high and the like.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, angle modulation tensioning mechanism includes connecting axle, rotation axis and length adjustment subassembly, length adjustment subassembly's both ends are connected with connecting axle and rotation axis respectively, the connecting axle with the top of vertical support frame is connected, the rotation axis is used for connecting the top of stem stalk feeding mechanism.

The beneficial effects of adopting the further scheme are as follows: by arranging the length adjusting component, the top of the stalk feeding mechanism assembly can be tensioned and adjusted according to the requirement.

Further, the length adjustment assembly comprises a first connecting screw rod, a second connecting screw rod and a threaded sleeve, one end of the first connecting screw rod is connected with the rotating shaft, one end of the second connecting screw rod is connected with the connecting shaft, the other end of the first connecting screw rod is in threaded connection with one end of the threaded sleeve, and the other end of the second connecting screw rod is in threaded connection with the other end of the threaded sleeve.

The beneficial effects of adopting the further scheme are as follows: through setting up thread bush and connecting screw rod, accessible rotatory thread bush realizes the length adjustment of length adjustment subassembly.

Further, a deflector rod is arranged on the outer side wall of the thread sleeve, a first thread section and a second thread section with opposite screwing directions are arranged in the thread sleeve, the first connecting screw is in threaded connection with the first thread section, and the second connecting screw is in threaded connection with the second thread section.

The beneficial effects of adopting the further scheme are as follows: through setting up the driving lever, make things convenient for handheld operation.

Further, the rotary supporting mechanism comprises a rotary frame and a first supporting limiting block, one end of the rotary frame is hinged with the vertical supporting frame through a hinge shaft assembly, the lifting mechanism is connected with the bottom supporting of the rotary frame and can drive the rotary frame to swing up and down, and one end of the rotary frame, deviating from the hinge shaft assembly, is provided with the first supporting limiting block.

The beneficial effects of adopting the further scheme are as follows: the first supporting limiting block can effectively support and limit the bottom of the stalk feeding mechanism assembly.

Further, a tray is arranged at one end of the rotating frame, which is away from the hinge shaft assembly, and first supporting limiting blocks are respectively arranged at two sides of the tray;

the first supporting limiting block is provided with a first limiting groove with an upward opening.

The beneficial effects of adopting the further scheme are as follows: the arrangement of the tray can effectively support the stalk feeding mechanism assembly, and the first limiting groove can effectively limit the bottom related structure of the stalk feeding mechanism assembly.

Further, remove supporting mechanism includes stay tube, flexible pipe and bracing piece, the stay tube is vertical to be arranged and fix on the horizontal support frame, flexible pipe cover is established in the stay tube and can reciprocate for the stay tube, the bracing piece level is fixed the top of flexible pipe.

The beneficial effects of adopting the further scheme are as follows: the movable supporting mechanism can stretch up and down, when the stalk feeding mechanism assembly is required to be supported and limited, the movable supporting mechanism can be extended, and when the stalk feeding mechanism assembly is not required to be supported and limited, the movable supporting mechanism can be shortened.

Further, be equipped with the second on the bracing piece and support the stopper, be equipped with the second spacing groove that the opening was up on the second supports the stopper.

Further, the support frame body includes horizontal support frame and the vertical support frame of fixed connection L type, rotary support mechanism's one end articulates the position that vertical support frame middle part is down, the bottom of horizontal support frame is equipped with a plurality of removal gyro wheels.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of a docking device with stepless angle adjustment according to the present utility model;

FIG. 2 is a schematic perspective view of an angle adjusting and tensioning mechanism according to the present utility model;

FIG. 3 is a schematic perspective view of a rotary support mechanism according to the present utility model;

FIG. 4 is a schematic perspective view of a movable support mechanism according to the present utility model;

FIG. 5 is a schematic perspective view of a supporting frame according to the present utility model;

FIG. 6 is a schematic perspective view of the angle stepless adjusting butt joint device and stalk feeding mechanism of the utility model;

Fig. 7 is a schematic perspective view of an assembly of a stalk feeding mechanism using the angle stepless adjustment docking device of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

100. An angle adjustment tensioning mechanism; 101. a connecting shaft; 102. a rotation shaft; 103. a first connecting screw; 104. a second connecting screw; 105. a thread sleeve; 106. a deflector rod; 107. connecting sleeves;

200. A rotary support mechanism; 201. a rotating frame; 202. a first support limit block; 203. a supporting rod; 204. a tray; 205. a first limit groove; 206. a hinged sleeve; 207. a hinge shaft; 208. a gasket; 209. a limit rod;

300. a movable support mechanism; 301. a support tube; 302. a telescopic tube; 303. a support rod; 304. a connection hole; 305. a pin shaft; 306. a cotter pin; 307. the second supporting limiting block; 308. the second limit groove;

400. a lifting mechanism; 500. a horizontal support frame; 501. moving the roller; 600. a vertical support frame; 601. connecting an ear plate;

700. A stalk feeding mechanism; 701. lifting lugs; 800. a harvester body.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1 to 7, the angle stepless adjustment docking device of the present embodiment includes an angle adjustment tensioning mechanism 100, a rotation supporting mechanism 200, a movement supporting mechanism 300, a lifting mechanism 400 and a supporting frame body, wherein the supporting frame body includes a horizontal supporting frame 500 and a vertical supporting frame 600 which are fixedly connected, the horizontal supporting frame 500 is provided with the lifting mechanism 400, one end of the rotation supporting mechanism 200 is hinged with the vertical supporting frame 600, and the lifting mechanism 400 is connected with the bottom of the rotation supporting mechanism 200 in a supporting manner and can drive the rotation supporting mechanism 200 to swing up and down; the moving support mechanism 300 is mounted on the horizontal support frame 500 to be movable up and down, and the moving support mechanism 300 is located at one side of the rotating support mechanism 200 and is spaced apart from the rotating support mechanism 200; the angle adjustment tensioning mechanism 100 is mounted on top of the vertical support frame 600.

The lifting mechanism 400 of the present embodiment may be any mechanism capable of achieving a lifting function, such as a jack or a hydraulic cylinder.

As shown in fig. 1 and 2, the angle adjusting and tensioning mechanism 100 of the present embodiment includes a connection shaft 101, a rotation shaft 102, and a length adjusting assembly, two ends of the length adjusting assembly are respectively connected with the connection shaft 101 and the rotation shaft 102, the connection shaft 101 is connected with the top of the vertical supporting frame 600, and the rotation shaft 102 is used for connecting with the top of the stalk feeding mechanism 700. By arranging the length adjusting component, the top of the stalk feeding mechanism assembly can be tensioned and adjusted according to the requirement. Wherein the connection shaft 101 is disposed in parallel with the rotation shaft 102, and the connection shaft 101 and the rotation shaft 102 may be parallel to the vertical support frame 600 and the horizontal support frame 500, respectively.

As shown in fig. 2, the length adjustment assembly of the present embodiment includes a first connecting screw 103, a second connecting screw 104, and a threaded sleeve 105, one end of the first connecting screw 103 is connected with the rotating shaft 102, one end of the second connecting screw 104 is connected with the connecting shaft 101, the other end of the first connecting screw 103 is in threaded connection with one end of the threaded sleeve 105, and the other end of the second connecting screw 104 is in threaded connection with the other end of the threaded sleeve 105. Through setting up thread bush and connecting screw rod, accessible rotatory thread bush realizes the length adjustment of length adjustment subassembly.

Specifically, as shown in fig. 2, one end of the first connecting screw 103 is vertically and fixedly connected to the middle part of the rotating shaft 102, and one end of the second connecting screw 104 is vertically connected to the connecting shaft 101.

In a further alternative of this embodiment, a shift lever 106 is disposed on an outer sidewall of the threaded sleeve 105, a first threaded section and a second threaded section with opposite rotation directions are disposed in the threaded sleeve 105, the first connecting screw is in threaded connection with the first threaded section, and the second connecting screw is in threaded connection with the second threaded section. Through setting up the driving lever, make things convenient for handheld operation.

Specifically, in this embodiment, a connecting sleeve 107 is fixedly connected to the middle of the rotating shaft 102 vertically, and the connecting sleeve 107 is fixedly connected to one end of the first connecting screw 103 through an elastic cylindrical pin. Two deflector rods 106 are arranged on the outer side wall of the threaded sleeve 105, the two deflector rods 106 can be vertically and fixedly connected with the threaded sleeve 105, and the two deflector rods 106 can be symmetrically arranged at 180 degrees, so that the handheld operation is convenient. Two parallel connection lugs 601 may be disposed at the middle position of the top of the vertical support frame 600, and the connection shaft 101 may be passed through the two connection lugs 601 and connected and fixed by cotter pins.

As shown in fig. 1 and 3, the rotary support mechanism 200 of this embodiment includes a rotary frame 201 and a first support stopper 202, one end of the rotary frame 201 is hinged to the vertical support frame 600 through a hinge shaft assembly, the lifting mechanism 400 is connected to the bottom support of the rotary frame 201 and can drive the rotary frame 201 to swing up and down, and the first support stopper 202 is disposed at one end of the rotary frame 201 facing away from the hinge shaft assembly. The first supporting limiting block can effectively support and limit the bottom of the stalk feeding mechanism assembly.

Specifically, the hinge shaft assembly includes a hinge sleeve 206 and a hinge shaft 207, wherein a hinge sleeve 206 arranged oppositely is disposed between two vertical rods of the vertical support frame 600, then two sides of one end of the rotating frame 201 are respectively and fixedly connected with the hinge shaft 207, the two hinge shafts 207 are respectively disposed and sleeved in the hinge sleeve 206 and penetrate through the two vertical rods of the vertical support frame 600, then a gasket 208 is disposed at one end of the hinge shaft 207 located outside the vertical rods, and the hinge shaft 207 is limited by the gasket 208.

As shown in fig. 1 and 3, a tray 204 is disposed at one end of the rotating frame 201 facing away from the hinge shaft assembly, and first supporting limiting blocks 202 are disposed at two sides of the tray 204 respectively; the first supporting limiting block 202 has a first limiting groove 205 with an upward opening. The arrangement of the tray can effectively support the stalk feeding mechanism assembly, and the first limiting groove can effectively limit the bottom related structure of the stalk feeding mechanism assembly.

As shown in fig. 1 and fig. 3, the upper surface of the rotating frame 201 in this embodiment is provided with a limiting rod 209, the limiting rod 209 is located between the tray 204 and the rotating frame 201, the limiting rod 209 is arranged parallel to the rotating shaft 102, the supporting rod 203 may be penetratingly disposed in the tray 204, then the supporting rod 203 and the tray 204 are fixedly disposed, the supporting rod 203 is disposed near the rotating frame 201, two ends of the supporting rod 203 respectively extend from two ends of the tray 204, two ends of the supporting rod 203 are respectively provided with a first supporting limiting block 202, the first supporting limiting block 202 may be sleeved and fixed on the supporting rod 203, then a first limiting groove 205 is formed at the upper end of the first supporting limiting block 202, and the first limiting groove 205 may be a V-shaped groove or a U-shaped groove, and may specifically be in fit and clamped with the bottom structure of the stalk feeding mechanism 700.

As shown in fig. 1 and 4, the moving support mechanism 300 of the present embodiment includes a support tube 301, a telescopic tube 302, and a support rod 303, wherein the support tube 301 is vertically disposed and fixed on the horizontal support frame 500, the telescopic tube 302 is sleeved in the support tube 301 and can move up and down relative to the support tube 301, and the support rod 303 is horizontally fixed on top of the telescopic tube 302. The movable supporting mechanism can stretch up and down, when the stalk feeding mechanism assembly is required to be supported and limited, the movable supporting mechanism can be extended, and when the stalk feeding mechanism assembly is not required to be supported and limited, the movable supporting mechanism can be shortened.

As shown in fig. 4, the support rod 303 in this embodiment is provided with a second support stopper 307, and the second support stopper 307 is provided with a second stopper groove 308 with an upward opening.

As shown in fig. 4, two support tubes 301 are provided in this embodiment, each support tube 301 is vertically disposed, the support tubes 301 may be welded and fixed on the cross beam of the horizontal support frame 500, then, a telescopic tube 302 is sleeved in each support tube 301, a plurality of connection holes 304 are formed in the telescopic tube 302, then, a limit hole is also formed in the support tube 301, then, one connection hole 304 at the lower end of the telescopic tube 302 may be connected with the limit hole through a pin 305, and then, the pin 305 may be limited and fixed through a cotter pin 306. When retraction is required, the pin 305 can be pulled out, and then the telescopic tube 302 is moved downwards, so that a connecting hole 304 at the upper end of the telescopic tube 302 is connected with the limiting hole through the pin. The upper ends of the two telescopic pipes 302 are respectively and fixedly connected with two ends of the supporting rod 303, second supporting limiting blocks 307 are arranged on the upper sides of the two ends of the supporting rod 303, second limiting grooves 308 are formed in the second supporting limiting blocks 307, and the second limiting grooves 308 can be U-shaped grooves or V-shaped grooves and can be specifically connected with the bottom structure of the stalk feeding mechanism 700 in an adapting and clamping mode.

As shown in fig. 1 and 5, the support frame body of this embodiment includes a horizontal support frame 500 and a vertical support frame 600 that are fixedly connected to form an L-shape, and the horizontal support frame 500 and the vertical support frame 600 may be further connected by a diagonal rod, one end of the rotary support mechanism 200 is hinged to a position of the middle of the vertical support frame 600, a plurality of moving rollers 501 are disposed at the bottom of the horizontal support frame 500, the moving rollers 501 may be four, and four moving rollers 501 may be respectively disposed at four corners of the horizontal support frame 500.

When the angle stepless adjusting butt joint device of the embodiment is used, two ends of the rotating shaft 102 can be respectively inserted into the lifting lugs 701 at the top of the stalk feeding mechanism 700, two lifting lugs 701 are arranged at the top of the stalk feeding mechanism 700, and two ends of the rotating shaft 102 can be respectively inserted into the two lifting lugs 701. The first connecting screw and the second connecting screw are screwed in or out from the threaded sleeve respectively by operating the deflector rod and rotating the threaded sleeve, so that the length of the angle adjusting and tensioning mechanism 100 is adjusted, the upper end of the stalk feeding mechanism assembly is inclined, a certain angle can be formed with the front side of the whole harvester body 800, and the auxiliary rotating supporting mechanism is used for carrying out angle stepless adjustment on the stalk feeding mechanism assembly as shown in fig. 7. The lifting mechanism can lift and support the bottom of the stalk feeding mechanism assembly, can realize stepless adjustment of the angle and the height of the stalk feeding mechanism assembly, and is adjusted to the angle and the height required by the butt joint of the whole machine, thereby completing the butt joint of the stalk feeding mechanism assembly and the whole machine.

According to the angle stepless adjustment butting device, the angle adjustment tensioning mechanism, the rotary supporting mechanism, the movable supporting mechanism, the lifting mechanism and the supporting frame body are arranged, so that the angle and the height of the stalk feeding mechanism assembly can be stepless adjusted, and the stalk feeding mechanism assembly is in butting connection with the whole machine. The angle stepless adjustment butting device can improve the assembly efficiency and the safety and reliability of the stalk feeding mechanism assembly when being in butting connection with the whole machine. The angle stepless adjustment butting device can solve the problems that an existing silage harvester stalk feeding mechanism assembly is difficult to dock and assemble with a complete machine, and the problems that the assembly process is complex and difficult, the consumed time is high, the number of people is high, the danger coefficient of docking work is high and the like.

The embodiment also provides a docking method, which is realized by adopting the angle stepless adjustment docking device, and comprises the following steps: moving the movable supporting mechanism 300 upward to a first preset position, then placing the stalk feeding mechanism 700 on the rotary supporting mechanism 200 and the movable supporting mechanism 300, connecting the angle adjusting and tensioning mechanism 100 with the top of the stalk feeding mechanism 700, and moving the movable supporting mechanism 300 downward to a second preset position, so that the movable supporting mechanism 300 does not support the stalk feeding mechanism 700 any more; the rotary supporting mechanism 200 is jacked up by the lifting mechanism 400, so that the stalk feeding mechanism 700 is jacked up by a preset adjusting angle, and meanwhile, the tensioning mechanism 100 is utilized for tensioning and adjusting, so that the butt joint angle of the stalk feeding mechanism 700 and the whole machine is adapted.

The butt joint method of the embodiment not only can realize stepless adjustment of the height of the stalk feeding mechanism assembly, but also can realize stepless adjustment of the angle of the stalk feeding mechanism assembly, and improves the installation efficiency of butt joint of the stalk feeding mechanism assembly and the whole machine.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. The angle stepless adjusting butt joint device is characterized by comprising an angle adjusting tensioning mechanism, a rotary supporting mechanism, a movable supporting mechanism, a lifting mechanism and a supporting frame body, wherein the supporting frame body comprises a horizontal supporting frame and a vertical supporting frame which are fixedly connected, the horizontal supporting frame is provided with the lifting mechanism, one end of the rotary supporting mechanism is hinged with the vertical supporting frame, and the lifting mechanism is in supporting connection with the bottom of the rotary supporting mechanism and can drive the rotary supporting mechanism to swing up and down; the movable supporting mechanism is arranged on the horizontal supporting frame and can move up and down, and the movable supporting mechanism is positioned on one side of the rotary supporting mechanism and is arranged at intervals with the rotary supporting mechanism; the angle adjusting and tensioning mechanism is mounted at the top of the vertical supporting frame.

2. The angle stepless adjusting and butting device according to claim 1, wherein the angle adjusting and tensioning mechanism comprises a connecting shaft, a rotating shaft and a length adjusting assembly, two ends of the length adjusting assembly are respectively connected with the connecting shaft and the rotating shaft, the connecting shaft is connected with the top of the vertical supporting frame, and the rotating shaft is used for connecting the top of the stalk feeding mechanism.

3. The angle stepless adjustment butt joint device according to claim 2, wherein the length adjustment assembly comprises a first connecting screw rod, a second connecting screw rod and a threaded sleeve, one end of the first connecting screw rod is connected with the rotating shaft, one end of the second connecting screw rod is connected with the connecting shaft, the other end of the first connecting screw rod is in threaded connection with one end of the threaded sleeve, and the other end of the second connecting screw rod is in threaded connection with the other end of the threaded sleeve.

4. The angle stepless adjustment butt joint device according to claim 3, wherein a deflector rod is arranged on the outer side wall of the threaded sleeve, a first threaded section and a second threaded section with opposite rotation directions are arranged in the threaded sleeve, the first connecting screw is in threaded connection with the first threaded section, and the second connecting screw is in threaded connection with the second threaded section.

5. The angle stepless adjustment butt joint device according to claim 1, wherein the rotary support mechanism comprises a rotary frame and a first support limiting block, one end of the rotary frame is hinged with the vertical support frame through a hinge shaft assembly, the lifting mechanism is connected with the bottom support of the rotary frame and can drive the rotary frame to swing up and down, and the first support limiting block is arranged at one end of the rotary frame, which is away from the hinge shaft assembly.

6. The stepless angle adjusting and butting device according to claim 5, wherein a tray is arranged at one end of the rotating frame, which is away from the hinge shaft assembly, and first supporting limiting blocks are respectively arranged at two sides of the tray.

7. The angle stepless adjustment docking device of claim 5, wherein the first support limiting block is provided with a first limiting groove with an upward opening.

8. The angle stepless adjustment docking device according to claim 1, wherein the movable supporting mechanism comprises a supporting tube, a telescopic tube and a supporting rod, the supporting tube is vertically arranged and fixed on the horizontal supporting frame, the telescopic tube is sleeved in the supporting tube and can move up and down relative to the supporting tube, and the supporting rod is horizontally fixed on the top of the telescopic tube.

9. The stepless angle adjusting and butting device according to claim 8, wherein the supporting rod is provided with a second supporting limiting block, and the second supporting limiting block is provided with a second limiting groove with an upward opening.

10. The angle stepless adjusting butt joint device according to claim 1, wherein the support frame body comprises a horizontal support frame and a vertical support frame which are fixedly connected into an L shape, one end of the rotary support mechanism is hinged to the lower portion of the middle of the vertical support frame, and a plurality of movable rollers are arranged at the bottom of the horizontal support frame.