Real-time surveying and mapping data acquisition device

Abstract

The invention relates to the technical field of surveying and mapping data acquisition, and discloses a real-time surveying and mapping data acquisition device which comprises a surveying and mapping instrument body, a base is arranged at the bottom of the surveying and mapping instrument body, universal wheels are installed at the bottom of the base, and a data acquisition device adjusting mechanism is arranged at the top of the base. The data acquisition device adjusting mechanism comprises a height adjusting assembly, a damping stabilizing assembly and a surveying and mapping instrument adjusting assembly, when the surveying and mapping instrument body needs to be installed, the clamping frame is pulled to the two sides by pulling the pulling handle, and then the surveying and mapping instrument body can be placed on the top of the instrument installing plate; the surveying and mapping instrument body can be fixed to the top of the device through the elastic force of the telescopic column and the clamping spring by loosening the pulling handle, the overall fixing effect is good, falling or displacement cannot occur in the using process, the rotating handle can be rotated to drive the rotating shaft to rotate in the using process, and therefore the measuring angle of the device is changed. Therefore, different working requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of surveying and mapping data acquisition, and in particular to a real-time surveying and mapping data acquisition device. Background Art

[0002] Surveying and mapping literally means measuring and drawing. It is based on computer technology, optoelectronic technology, network communication technology, space science, and information science, with global navigation satellite positioning system, remote sensing, and geographic information system as the technical core. It selects existing feature points and boundaries on the ground and uses measurement methods to obtain graphics and positions reflecting the current ground conditions and related information for use in engineering construction, planning and design, and administrative management.

[0003] Generally, most commonly used surveying and mapping instruments are fixed on a fixed frame and then placed at the measuring position for use. However, the overall specifications of the general fixed frame are fixed and cannot be adjusted quickly and stably. When there is a need to measure at different angles, it cannot be adjusted quickly and accurately. The overall efficiency is low and cannot meet the needs.

[0004] Therefore, it is necessary to design a real-time surveying and mapping data acquisition device that is highly practical, easy to adjust, and highly stable. Summary of the invention

[0005] The purpose of the present invention is to provide a real-time surveying and mapping data acquisition device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a real-time surveying and mapping data acquisition device, comprising a surveying and mapping instrument body, a base is arranged at the bottom of the surveying and mapping instrument body, a universal wheel is installed at the bottom of the base, a data acquisition device adjustment mechanism is arranged at the top of the base, the data acquisition device adjustment mechanism comprises a height adjustment component, a shock stabilization component and a surveying and mapping instrument adjustment component, an auxiliary mechanism is arranged on the surface of the base, and the auxiliary mechanism comprises a rotating component and an auxiliary support component; The surveying and mapping instrument adjustment component includes a rotating shaft, and the shock-absorbing and stabilizing component includes a bracket. The rotating shaft is rotatably connected to the top of the inner side of the bracket, and a rotating handle is fixedly connected to the left end of the rotating shaft, and a fixing sleeve is fixedly connected to the surface of the rotating shaft, and an instrument mounting plate is fixedly connected to the top of the fixing sleeve. Slide grooves are provided at the front and rear ends of the top of the instrument mounting plate, and a sliding block is slidably connected inside the slide groove, and a clamping frame is fixedly connected to the top of the sliding block, and a pulling handle is fixedly connected to the outer end of the clamping frame. Side seats are fixedly connected to the left and right ends of the top of the instrument mounting plate, and a telescopic column is fixedly connected between the clamping frame and the side seat, and a clamping spring is sleeved on the surface of the telescopic column. A built-in rubber protective pad is fixedly connected to the inner side of the holding frame, a heat dissipation port is opened on the back of the clamping frame, an air fan is installed inside the heat dissipation port, and a dustproof net is installed on the back of the heat dissipation port. When the surveying and mapping instrument body needs to be installed, the clamping frame is pulled to both sides by pulling the pulling handle, and then the surveying and mapping instrument body can be placed on the top of the instrument mounting plate. By releasing the pulling handle, the surveying and mapping instrument body can be fixed to the top of the device by the elastic force of the telescopic column and the clamping spring. The overall fixing effect is good and it will not fall or move during use. During use, the rotating handle can also be turned to drive the rotating shaft to rotate, so as to change the measuring angle of the device to meet different work needs.

[0007] According to the above technical solution, two groups of the fixing sleeves are provided, sliding blocks are slidably connected to both left and right ends of the inner side of the sliding groove, and four groups of the telescopic columns and the clamping springs are provided.

[0008] According to the above technical scheme, the height adjustment component includes a first support frame, the rotating component includes a connecting seat, the first support frame is fixedly connected to the right end of the top of the connecting seat, the inner side of the first support frame is rotatably connected to a screw rod, the top of the first support frame is installed with a motor, the left end of the top of the connecting seat is fixedly connected to a guide rod, the front and rear ends of the inner sides of the first support frame and the second support frame are fixedly connected to auxiliary slideways, the surface of the screw rod is threadedly connected to a slider, the surface of the guide rod is slidably connected to a slider, the front and back of the slider are fixedly connected to the auxiliary slider, the inner side of the slider is fixedly connected to a support plate, and the top of the support plate is fixedly connected to a load-bearing base. The height adjustment component can change the overall measuring height of the device, and the screw is driven by a driving motor to rotate, and the slider is driven to move on the surface of the screw and the guide rod, so as to drive the top surveying and mapping instrument body and other components to be lifted and lowered. The setting of the auxiliary slider and the auxiliary slideway can ensure the stability of the overall lifting and the stability during work.

[0009] According to the above technical solution, the auxiliary sliding block is slidably connected to the inside of the auxiliary slideway, and the screw rod is fixedly connected to the bottom output end of the motor.

[0010] According to the above technical solution, the height adjustment component includes a load-bearing base, and the shock-absorbing and stabilizing component includes a damping telescopic column, which is fixedly connected to the four corners of the top of the load-bearing base. A spring is sleeved on the surface of the damping telescopic column, and the top of the damping telescopic column is fixedly connected to a base plate. The left and right ends of the top of the base plate are fixedly connected to brackets. During the use of the device, when the surveying and mapping instrument body is subjected to pressure, the device will be protected by the damping telescopic column and the spring, and the shaking force will be removed, thereby ensuring the stability of the device and providing a stable environment for the measurement work.

[0011] According to the above technical solution, the rotating assembly includes a control motor, which is installed at the bottom center of the base, the top of the control motor is fixedly connected to a rotating shaft, the top of the rotating shaft is fixedly connected to a connecting seat, the bottom of the connecting seat is fixedly connected to a sliding seat, the top of the base is fixedly connected to a bearing seat, and the inside of the bearing seat is fixedly connected to a rotating slide.

[0012] According to the above technical solution, the auxiliary support assembly includes a first extension plate, the first extension plate is fixedly connected to the top end of the outer surface of the base, the bottom end of the outer surface of the base is fixedly connected to the second extension plate, a hydraulic cylinder is installed at the top outer end of the first extension plate, a hydraulic telescopic column is fixedly connected to the bottom of the hydraulic cylinder, a connecting sleeve is fixedly connected to the bottom end of the surface of the hydraulic telescopic column, a hinged seat is fixedly connected to the surface of the connecting sleeve, a support arm is hinged inside the hinged seat, the bottom end of the support arm is fixedly connected to the support seat, and the bottom of the hydraulic telescopic column is fixedly connected to a foot.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The present invention is provided with a surveying and mapping instrument adjustment component. When the surveying and mapping instrument body needs to be installed, the clamping frame is pulled to both sides by pulling the pulling handle, and then the surveying and mapping instrument body can be placed on the top of the instrument mounting plate. The surveying and mapping instrument body can be fixed to the top of the device by the elastic force of the telescopic column and the clamping spring by releasing the pulling handle. The overall fixing effect is good and the surveying and mapping instrument body will not fall or be displaced during use. During use, the rotating handle can be turned to drive the rotating shaft to rotate, thereby changing the measuring angle of the device to meet different work requirements.

[0014] 2. The present invention is provided with a height adjustment component, through which the measuring height of the entire device can be changed. The screw is driven by a driving motor to rotate, and the slider is driven to move on the surface of the screw and the guide rod, so that the surveying and mapping instrument body and other components on the top can be driven to rise and fall. The auxiliary slider and the auxiliary slide can ensure the stability of the overall lifting and the stability during operation.

[0015] 3. The present invention is provided with a shock-absorbing and stabilizing component. When the surveying and mapping instrument body is subjected to pressure during the use of the device, the damping telescopic column and the spring can be used to protect the device and remove the shaking force, thereby ensuring the stability of the device and providing a stable environment for the measurement work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is an overall schematic diagram of the present invention; Figure 2 is a schematic diagram of a height adjustment assembly of the present invention; Figure 3 is a schematic diagram of a shock absorbing and stabilizing assembly of the present invention; Figure 4 is a schematic diagram of the surveying and mapping instrument adjustment assembly of the present invention; Figure 5 is a schematic diagram of an instrument mounting plate of the present invention; Figure 6 is a bottom schematic diagram of the present invention; Figure 7 is a schematic diagram of a rotating assembly of the present invention; Figure 8 It is a schematic diagram of the auxiliary support assembly of the present invention.

[0017] In the figure: 1, base; 2, universal wheel; 3, data acquisition device adjustment mechanism; 31, height adjustment component; 311, first support frame; 312, screw; 313, motor; 314, second support frame; 315, guide rod; 316, auxiliary slide; 317, slider; 318, auxiliary slider; 319, support plate; 3101, load-bearing base; 32, shock-absorbing and stabilizing component; 321, damping telescopic column; 322, spring; 323, bottom plate; 324, bracket; 33, surveying and mapping instrument adjustment component; 331, rotating shaft; 332, rotating handle; 333, fixing sleeve; 334, instrument mounting plate; 335, slide groove; 336, sliding block; 337, clamping frame; 33 8. Pull handle; 339. Side seat; 3301. Telescopic column; 3302. Snap-on spring; 3303. Built-in rubber protective pad; 3304. Heat dissipation vent; 3305. Air fan; 3306. Dust net; 4. Surveying and mapping instrument body; 5. Auxiliary mechanism; 51. Rotating assembly; 511. Control motor; 512. Rotating shaft; 513. Connecting seat; 514. Sliding seat; 515. Bearing seat; 516. Rotating slide; 52. Auxiliary support assembly; 521. First extension plate; 522. Second extension plate; 523. Hydraulic cylinder; 524. Hydraulic telescopic column; 525. Base; 526. Connecting sleeve; 527. Articulated seat; 528. Support arm; 529. Support seat. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The present invention provides the following technical solutions: Embodiment 1

[0020] See also Figure 1-8 The present invention provides a technical solution: a real-time surveying and mapping data acquisition device, including a surveying and mapping instrument body 4, a base 1 is arranged at the bottom of the surveying and mapping instrument body 4, a universal wheel 2 is installed at the bottom of the base 1, a data acquisition device adjustment mechanism 3 is arranged on the top of the base 1, the data acquisition device adjustment mechanism 3 includes a height adjustment component 31, a shock stabilization component 32 and a surveying and mapping instrument adjustment component 33, an auxiliary mechanism 5 is arranged on the surface of the base 1, and the auxiliary mechanism 5 includes a rotating component 51 and an auxiliary support component 52; The surveying and mapping instrument adjustment component 33 includes a rotating shaft 331, and the shock absorbing and stabilizing component 32 includes a bracket 324. The rotating shaft 331 is rotatably connected to the inner top of the bracket 324. The left end of the rotating shaft 331 is fixedly connected to a rotating handle 332. The surface of the rotating shaft 331 is fixedly connected to a fixing sleeve 333. The top of the fixing sleeve 333 is fixedly connected to an instrument mounting plate 334. Slide grooves 335 are provided at the front and rear ends of the top of the instrument mounting plate 334. A sliding block 336 is slidably connected inside the slide groove 335. A clamping frame 337 is fixedly connected to the top of the sliding block 336. A pulling handle 338 is fixedly connected to the outer end of the clamping frame 337. Side seats 339 are fixedly connected to the left and right ends of the top of the instrument mounting plate 334. A telescopic column 3301 is fixedly connected between the clamping frame 337 and the side seat 339. A clamping spring 3302 is sleeved on the surface of the telescopic column 3301. A built-in rubber protective pad 3303 is fixedly connected to the inner side of the holding frame 337, a heat dissipation port 3304 is opened on the back of the clamping frame 337, an air fan 3305 is installed inside the heat dissipation port 3304, and a dustproof net 3306 is installed on the back of the heat dissipation port 3304. When the surveying and mapping instrument body 4 needs to be installed, the clamping frame 337 is pulled to both sides by pulling the pull handle 338, and then the surveying and mapping instrument body 4 can be placed on the top of the instrument installation plate 334. The pull handle 338 is released to fix the surveying and mapping instrument body 4 on the top of the device through the elastic force of the telescopic column 3301 and the clamping spring 3302. The overall fixing effect is good and will not fall or move during use. During use, the rotating handle 332 can also be turned to drive the rotating shaft 331 to rotate, so as to change the measuring angle of the device, so as to meet different work requirements; There are two sets of fixed sleeves 333, the left and right ends of the inner side of the slide slot 335 are slidably connected with sliding blocks 336, and there are four sets of telescopic columns 3301 and clamping springs 3302; The height adjustment assembly 31 includes a first support frame 311, and the rotating assembly 51 includes a connecting seat 513. The first support frame 311 is fixedly connected to the right end of the top of the connecting seat 513. The inner side of the first support frame 311 is rotatably connected to a screw rod 312. A motor 313 is installed on the top of the first support frame 311. The left end of the top of the connecting seat 513 is fixedly connected to a guide rod 315. The front and rear ends of the inner sides of the first support frame 311 and the second support frame 314 are fixedly connected to auxiliary slideways 316. The surface of the screw rod 312 is threadedly connected to a slider 317. The surface of the guide rod 315 is slidably connected to the slider 317. Auxiliary sliders 318 are fixedly connected to the front and back of the 17, a support plate 319 is fixedly connected to the inner side of the slider 317, and a load-bearing base 3101 is fixedly connected to the top of the support plate 319. The height adjustment component 31 can change the measuring height of the entire device. The screw 312 is driven to rotate by the driving motor 313, and the slider 317 is driven to move on the surface of the screw 312 and the guide rod 315, so that the top surveying and mapping instrument body 4 and other components can be driven to rise and fall. The auxiliary slider 318 and the auxiliary slide 316 can ensure the stability of the overall lifting and stability during work. The auxiliary slide block 318 is slidably connected to the inside of the auxiliary slideway 316, and the screw rod 312 is fixedly connected to the bottom output end of the motor 313; The height adjustment component 31 includes a load-bearing base 3101, and the shock-absorbing and stabilizing component 32 includes a damping telescopic column 321, which is fixedly connected to the four corners of the top of the load-bearing base 3101. A spring 322 is sleeved on the surface of the damping telescopic column 321. The top of the damping telescopic column 321 is fixedly connected to a base plate 323, and the left and right ends of the top of the base plate 323 are fixedly connected to brackets 324. During the use of the device, when the surveying and mapping instrument body 4 is subjected to pressure, the device will be protected by the damping telescopic column 321 and the spring 322, and the shaking force will be removed, thereby ensuring the stability of the device and providing a stable environment for the measurement work. Embodiment 2

[0021] See also Figure 1-8 , and on the basis of the first embodiment, the rotating assembly 51 further comprises a control motor 511, the control motor 511 is installed at the bottom center of the base 1, the top of the control motor 511 is fixedly connected to a rotating shaft 512, the top of the rotating shaft 512 is fixedly connected to a connecting seat 513, the bottom of the connecting seat 513 is fixedly connected to a sliding seat 514, the top of the base 1 is fixedly connected to a bearing seat 515, and the inside of the bearing seat 515 is fixedly connected to a rotating slideway 516; The auxiliary support assembly 52 includes a first extension plate 521, which is fixedly connected to the top end of the outer surface of the base 1, and a second extension plate 522 is fixedly connected to the bottom end of the outer surface of the base 1. A hydraulic cylinder 523 is installed on the outer end of the top of the first extension plate 521, and a hydraulic telescopic column 524 is fixedly connected to the bottom of the hydraulic cylinder 523. A connecting sleeve 526 is fixedly connected to the bottom end of the surface of the hydraulic telescopic column 524, and a hinge seat 527 is fixedly connected to the surface of the connecting sleeve 526. A support arm 528 is hinged inside the hinge seat 527, and a support seat 529 is fixedly connected to the bottom end of the support arm 528. A base foot 525 is fixedly connected to the bottom of the hydraulic telescopic column 524.

[0022] In actual operation, when the device is used, the device is moved to a suitable position, supported by the auxiliary support assembly 52, and driven by the hydraulic cylinder 523 to lower the hydraulic telescopic column 524 to prop up the device, and the support arm 528 and the support seat 529 are used to achieve stable support of the device, and then the surveying and mapping instrument body 4 can be installed, and the clamping frame 337 can be pulled to both sides by pulling the pulling handle 338, and then the surveying and mapping instrument body 4 can be placed on the top of the instrument mounting plate 334, and the pulling handle 338 can be released to fix the surveying and mapping instrument body 4 on the top of the device by the elastic force of the telescopic column 3301 and the clamping spring 3302, and the overall fixing effect is good, and it will not fall or move during use. During use, the rotating handle 332 can also be turned to drive the rotating shaft 331 to rotate, so as to change the measuring angle of the device, so as to meet different work requirements. During work, the air fan 3305 on the back will also discharge the heat generated by the work of the surveying and mapping instrument body 4, so as to ensure the stability of the device and prevent overheating and damage; The height adjustment component 31 can change the measuring height of the whole device. The driving motor 313 drives the screw 312 to rotate, and drives the slider 317 to move on the surface of the screw 312 and the guide rod 315, so as to drive the surveying and mapping instrument body 4 and other components on the top to move up and down. The auxiliary slider 318 and the auxiliary slide 316 can ensure the stability of the whole lifting and down, and ensure the stability during the work. During the use of the device, when the surveying and mapping instrument body 4 is subjected to pressure, the device will be protected by the damping telescopic column 321 and the spring 322, and the shaking force will be removed, thereby ensuring the stability of the device and providing a stable environment for the measurement work. The driving control motor 511 drives the rotating shaft 512 to rotate, which can drive the connecting seat 513 to rotate on the top of the base 1, thereby changing the measurement direction of the entire device. The device can be quickly adjusted through these components, so that the device can meet a variety of different usage environments.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A real-time surveying and mapping data acquisition device, comprising a surveying and mapping instrument body (4), characterized in that: A base (1) is provided at the bottom of the surveying and mapping instrument body (4), a universal wheel (2) is installed at the bottom of the base (1), a data acquisition device adjustment mechanism (3) is provided at the top of the base (1), the data acquisition device adjustment mechanism (3) comprises a height adjustment component (31), a shock absorption and stabilization component (32) and a surveying and mapping instrument adjustment component (33), an auxiliary mechanism (5) is provided on the surface of the base (1), the auxiliary mechanism (5) comprises a rotating component (51) and an auxiliary support component (52); The surveying and mapping instrument adjustment component (33) comprises a rotating shaft (331), the shock absorbing and stabilizing component (32) comprises a bracket (324), the rotating shaft (331) is rotatably connected to the inner top of the bracket (324), the left end of the rotating shaft (331) is fixedly connected to a rotating handle (332), the surface of the rotating shaft (331) is fixedly connected to a fixing sleeve (333), the top of the fixing sleeve (333) is fixedly connected to an instrument mounting plate (334), the top of the instrument mounting plate (334) is provided with a slide groove (335) at both ends, the slide groove (335) is slidably connected to a sliding block (336) inside, and the top of the sliding block (336) is fixedly connected to a clamping frame (337) ), a pulling handle (338) is fixedly connected to the outer end of the clamping frame (337), side seats (339) are fixedly connected to the left and right ends of the top of the instrument mounting plate (334), a telescopic column (3301) is fixedly connected between the clamping frame (337) and the side seat (339), a clamping spring (3302) is sleeved on the surface of the telescopic column (3301), a built-in rubber protective pad (3303) is fixedly connected to the inner side of the clamping frame (337), a heat dissipation port (3304) is opened on the back of the clamping frame (337), an air fan (3305) is installed inside the heat dissipation port (3304), and a dustproof net (3306) is installed on the back of the heat dissipation port (3304).

2. A real-time surveying and mapping data acquisition device according to claim 1, characterized in that: The fixing sleeves (333) are provided in two groups, the left and right ends of the inner side of the slide groove (335) are slidably connected with sliding blocks (336), and the telescopic columns (3301) and the clamping springs (3302) are provided in four groups.

3. A real-time surveying and mapping data acquisition device according to claim 1, characterized in that: The height adjustment assembly (31) comprises a first support frame (311), and the rotating assembly (51) comprises a connecting seat (513). The first support frame (311) is fixedly connected to the right end of the top of the connecting seat (513). A screw rod (312) is rotatably connected to the inside of the first support frame (311). A motor (313) is installed on the top of the first support frame (311). A guide rod (315) is fixedly connected to the left end of the top of the connecting seat (513). Auxiliary slideways (316) are fixedly connected to the front and rear ends of the inside of the first support frame (311) and the second support frame (314). A slider (317) is threadedly connected to the surface of the screw rod (312). The slider (317) is slidably connected to the surface of the guide rod (315). Auxiliary sliders (318) are fixedly connected to the front and back of the slider (317). A support plate (319) is fixedly connected to the inside of the slider (317). A load-bearing base (3101) is fixedly connected to the top of the support plate (319).

4. A real-time surveying and mapping data acquisition device according to claim 3, characterized in that: The auxiliary sliding block (318) is slidably connected to the interior of the auxiliary slideway (316), and the screw rod (312) is fixedly connected to the bottom output end of the motor (313).

5. The real-time surveying and mapping data acquisition device according to claim 1, characterized in that: The height adjustment component (31) comprises a load-bearing base (3101), and the shock-absorbing stabilizing component (32) comprises a damping telescopic column (321), the damping telescopic column (321) being fixedly connected to the four corners of the top of the load-bearing base (3101), a spring (322) being sleeved on the surface of the damping telescopic column (321), the top of the damping telescopic column (321) being fixedly connected to a bottom plate (323), and the top left and right ends of the bottom plate (323) being fixedly connected to brackets (324).

6. A real-time surveying and mapping data acquisition device according to claim 1, characterized in that: The rotating assembly (51) comprises a control motor (511), the control motor (511) being mounted at the bottom center of the base (1), the top of the control motor (511) being fixedly connected to a rotating shaft (512), the top of the rotating shaft (512) being fixedly connected to a connecting seat (513), the bottom of the connecting seat (513) being fixedly connected to a sliding seat (514), the top of the base (1) being fixedly connected to a bearing seat (515), and the inside of the bearing seat (515) being fixedly connected to a rotating slideway (516).

7. A real-time surveying and mapping data acquisition device according to claim 1, characterized in that: The auxiliary support assembly (52) comprises a first extension plate (521), the first extension plate (521) being fixedly connected to the top end of the outer surface of the base (1), the bottom end of the outer surface of the base (1) being fixedly connected to the second extension plate (522), the top outer end of the first extension plate (521) being mounted with a hydraulic cylinder (523), the bottom of the hydraulic cylinder (523) being fixedly connected to a hydraulic telescopic column (524), the bottom end of the surface of the hydraulic telescopic column (524) being fixedly connected to a connecting sleeve (526), ​​the surface of the connecting sleeve (526) being fixedly connected to an articulated seat (527), a support arm (528) being hingedly connected inside the articulated seat (527), the bottom end of the support arm (528) being fixedly connected to a support seat (529), and the bottom of the hydraulic telescopic column (524) being fixedly connected to a foot (525).

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