A mobile foldable surveying device

Abstract

The application discloses a mobile foldable surveying and mapping device, and belongs to the technical field of engineering surveying and mapping, which comprises a base, a plurality of support assemblies in annular array are rotationally connected to the base, the inner side of the plurality of support assemblies is connected with a linkage assembly, the inner side of the linkage assembly is clamped with a moving assembly, the moving assembly and the plurality of linkage assemblies are provided with a pressing assembly, and the plurality of linkage assemblies make the folded moving assembly unfold through the pressing assembly. In the application, the jitter compensation of the surveying and mapping device body is realized. When the second magnet is arranged on the mounting seat, the third magnetic block and the third coil can mobilize the longitudinal movement of the mounting seat. At this time, the arrangement of the third magnetic block and the third coil can compensate the deviation of the jitter of the surveying and mapping device body in the measuring process due to the vibration of the engineering body in the transverse direction. Therefore, the anti-jitter arrangement of the plurality of axial directions of the surveying and mapping device body can be realized, the anti-jitter effect of the surveying and mapping device body is enhanced, and the experience of the user is improved.

Description

Technical Field

[0001] This invention belongs to the field of engineering surveying and mapping technology, and in particular relates to a mobile, foldable surveying and mapping device. Background Technology

[0002] Surveying devices are used for measurement work during the planning, design, construction, and operation management stages of engineering construction. With the development of science and technology and the improvement of people's living standards, the development and utilization of land are gradually increasing. In the process of land development and civil engineering construction, it is necessary to use surveying devices to measure the terrain in order to ensure the safety and efficiency of the project.

[0003] Existing technologies disclose several invention patents in the field of engineering surveying and mapping. Among them, invention patent application number CN202111183178.0 discloses a mobile foldable surveying and mapping device, including a box body with openings at both the upper and lower ends. A protective door is hinged to the upper opening of the box body. A push-pull rod is slidably connected to the outer wall of the box body. Rollers are installed at the bottom of the box body. A folding frame is fixedly installed inside the box body. A support plate is fixedly connected to the upper end of the folding frame. A sensor is installed on the support plate. A support plate is fixedly connected to the lower end of the folding frame. Two sets of fixing mechanisms for limiting the position of the support plate are provided on the inner wall of the box body. This invention allows for the overall movement and transportation of the equipment via a push-pull rod. Furthermore, the lifting and lowering of the support plate can be adjusted using the push-pull rod, making operation convenient and facilitating rapid surveying work. The support plate can be clamped and fixed using wedge blocks and solenoids to prevent the sensor from shaking due to external factors such as wind. However, this technical solution still has some shortcomings in its application. During the surveying process, the engineering body is prone to vibration due to factors such as cutting equipment, welding equipment, and road construction vehicles, which can cause vibration in the surveying instrument and thus affect its measurement accuracy.

[0004] Based on this, the present invention designs a mobile foldable surveying device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the problem that during the measurement process of existing surveying instruments, engineering bodies are easily vibrated by factors such as cutting equipment, welding equipment, and road construction vehicles, which in turn causes the surveying instrument to vibrate and thus affects the measurement accuracy. Therefore, a mobile foldable surveying device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mobile foldable surveying device includes a base, on which a plurality of support components arranged in a circular array are rotatably connected. The inner side of the plurality of support components is connected to a linkage component, and the inner side of the linkage component is engaged with a moving component. The moving component and the plurality of linkage components are provided with a pressing component, and the plurality of linkage components unfold the folded moving component through the pressing component.

[0008] A surveying instrument body is disposed above the base. An anti-shake component is connected between the surveying instrument body and the base. The anti-shake component includes an outer shell. A circuit board is installed on the inner bottom of the outer shell. A first coil is disposed on the circuit board. A second coil and a third coil are disposed on the inner wall of the outer shell. The third coil, the second coil, and the first coil are perpendicular to each other. A filler sleeve is embedded on the inner side of the outer shell. A mounting base is embedded in the filler sleeve. The mounting base is connected to the surveying instrument body. A first magnetic block, a second magnetic block, and a third magnetic block are respectively embedded on the mounting base at the positions corresponding to the first coil, the second coil, and the third coil.

[0009] As a further description of the above technical solution:

[0010] The support assembly includes a first adapter, which is rotatably connected to the base. The other end of the first adapter is connected to a first telescopic joint. A second telescopic joint is sleeved on the inner side of the first telescopic joint. A first adjustment knob is provided between the second telescopic joint and the first telescopic joint to control the telescopic amount of the second telescopic joint. A third telescopic joint is sleeved on the inner side of the second telescopic joint. A second knob is provided between the third telescopic joint and the second telescopic joint assembly to control the telescopic amount of the third telescopic joint.

[0011] The end of the third expansion joint is connected to an anti-slip rubber head to enhance the friction between the third expansion joint and the ground.

[0012] As a further description of the above technical solution:

[0013] The linkage assembly includes a connecting plate located inside multiple support components. Multiple second adapters arranged in a circular array are connected to the connecting plate. The other end of each second adapter is rotatably connected to a telescopic inner shaft. The other end of the telescopic inner shaft is fitted with a telescopic outer cylinder. A first support spring is also connected to the other end of the telescopic inner shaft. The telescopic inner shaft is elastically supported and connected to the inner bottom of the telescopic outer cylinder via the first support spring. A third adapter is rotatably connected to the other end of the telescopic outer cylinder. A first adapter spring is connected to the telescopic outer cylinder. The telescopic outer cylinder elastically connects to the third adapter via the first adapter spring. The third adapter is connected to a corresponding first telescopic joint.

[0014] As a further description of the above technical solution:

[0015] The movable component includes a docking sleeve that snaps into the inner side of the connecting plate. A lifting shaft is fitted inside the docking sleeve, and a second support spring is fitted onto the lifting shaft. The lifting shaft is elastically supported and connected to the connecting plate through the second support spring. A folding groove is provided at the other end of the lifting shaft, and two support legs are rotatably connected within the folding groove. A second transition spring is connected to the support legs, and the support legs are elastically transitioned to the folding groove through the second transition spring. A moving wheel is connected to the other end of the support legs.

[0016] As a further description of the above technical solution:

[0017] The pressing assembly includes a pressing head, which is connected to the end of the lifting shaft. The pressing head has multiple pressing grooves corresponding to multiple telescopic outer cylinders.

[0018] A sliding plate is slidably connected to the telescopic outer cylinder. A first sliding groove is provided on the sliding plate. A slider is slidably connected in the first sliding groove. The slider is connected to the telescopic outer cylinder. A third support spring is connected to the end face of the slider. The slider is elastically supported and connected to the inside of the first sliding groove through the third support spring.

[0019] As a further description of the above technical solution:

[0020] The pressing assembly includes a pressing head, and a pressing protrusion is connected to the pressing groove on the sliding plate. The pressing protrusion has multiple micropores.

[0021] As a further description of the above technical solution:

[0022] The inner wall of the filling sleeve is provided with multiple second sliding grooves, and the mounting base is provided with relief grooves corresponding to the multiple second sliding grooves. Multiple balls are embedded in a single relief groove and the second sliding groove, and one of the balls is smaller than the diameter of the other balls.

[0023] As a further description of the above technical solution:

[0024] The ball has a hollow interior and vibration damping holes on its surface.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] 1. In this invention, after the circuit board is powered on, the first coil is energized. At this time, a magnetic force is generated between the first magnetic block and the first coil, which can push the mounting base inside the filling sleeve to move up and down. Meanwhile, the second coil and the second magnetic block can adjust the position of the mounting base in the direction perpendicular to the length of the second coil if there is vibration during the measurement process, thus achieving vibration compensation for the surveying instrument body. Since the second magnet is set on the mounting base, the third magnetic block and the third coil can move the mounting base longitudinally. At this time, the setting of the third magnetic block and the third coil can compensate for the deviation of the surveying instrument body vibration during the measurement process due to the vibration of the engineering body. Therefore, it can realize the anti-shake setting of the surveying instrument body in multiple axes, enhance the anti-shake effect of the surveying instrument body, and improve the user experience.

[0027] 2. In this invention, the pressing protrusion has capillary micropores filled with microparticles. These microparticles vibrate under the action of vibration force, thereby absorbing and dissipating the vibration force transmitted towards the connecting plate, reducing the shaking degree of the connecting plate, and preventing the connecting plate from shaking too much and affecting the overall stability of the mobile foldable surveying device. It can also consume and convert the vibration on the support component, reduce the vibration intensity acting on the surveying instrument body, and thus further improve the stability of the surveying instrument body and ensure the measurement accuracy of the surveying instrument body. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a mobile, foldable surveying device proposed in this invention.

[0029] Figure 2 This is a schematic diagram of the anti-shake component in a mobile foldable surveying device proposed in this invention;

[0030] Figure 3 This is a schematic diagram of the structure of the anti-shake component in a mobile foldable surveying device proposed in this invention, after being disassembled.

[0031] Figure 4 This is a schematic diagram of the structure of the second and third coils in a mobile foldable surveying device proposed in this invention;

[0032] Figure 5 This is a schematic diagram of the structure of the third magnetic block in a mobile foldable mapping device proposed in this invention;

[0033] Figure 6 This is a structural schematic diagram of a mobile foldable surveying device proposed in this invention from another perspective;

[0034] Figure 7 This is a schematic diagram of the disassembled structure of a mobile foldable surveying device proposed in this invention.

[0035] Figure 8 This is a schematic diagram of the disassembled linkage component in a mobile foldable surveying device proposed in this invention.

[0036] Legend:

[0037] 1. Base; 2. Support assembly; 201. First adapter; 202. First telescopic joint; 203. First adjusting knob; 204. Third telescopic joint; 205. Second adjusting knob; 206. Anti-slip rubber head; 207. Second telescopic joint; 3. Linkage assembly; 301. Connecting plate; 302. Second adapter; 303. Telescopic inner shaft; 304. First support spring; 305. Telescopic outer cylinder; 306. First adapter spring; 307. Third adapter; 4. Moving assembly; 401. Docking sleeve; 402. Lifting shaft; 403. Support leg; 404. Moving wheel; 40 5. Second support spring; 406. Second adapter spring; 5. Pressing assembly; 501. Pressing head; 502. Pressing groove; 503. Sliding plate; 504. Pressing protrusion; 505. Micropore; 6. Adjusting component; 7. Mapper body; 8. Anti-shake assembly; 801. Outer shell; 802. Filler sleeve; 803. Circuit board; 804. First coil; 805. Second coil; 806. Third coil; 807. First magnet; 808. Second magnet; 809. Third magnet; 810. Mounting base; 811. Relief groove; 812. Second slide groove; 813. Ball bearing. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see the appendix Figure 1 - Appendix Figure 8 The present invention provides a technical solution: a mobile foldable surveying device, including a base 1, a plurality of support components 2 arranged in a ring array rotatably connected to the base 1, a linkage component 3 connected to the inner side of the plurality of support components 2, a moving component 4 snapped into the inner side of the linkage component 3, and a pressing component 5 provided between the moving component 4 and the plurality of linkage components 3, wherein the plurality of linkage components 3 unfold the folded moving component 4 through the pressing component 5.

[0040] A surveying instrument body 7 is mounted on top of the base 1. An anti-shake component 8 is connected between the surveying instrument body 7 and the base 1. The anti-shake component 8 includes a housing 801. A circuit board 803 is mounted on the inner bottom of the housing 801. A first coil 804 is mounted on the circuit board 803. A second coil 805 and a third coil 806 are also mounted on the inner wall of the housing 801. The third coil 806, the second coil 805, and the first coil 804 are perpendicular to each other. A filler sleeve 802 is embedded on the inner side of the housing 801. A mounting base 810 is embedded in the filler sleeve 802. The mounting base 810 is connected to the surveying instrument body 7. A first magnetic block 807, a second magnetic block 808, and a third magnetic block 809 are respectively embedded on the mounting base 810 at the positions corresponding to the first coil 804, the second coil 805, and the third coil 806.

[0041] Specifically, such as Figure 1 As shown, the support assembly 2 includes a first adapter 201, which is rotatably connected to the base 1. The other end of the first adapter 201 is connected to a first telescopic joint 202. A second telescopic joint 207 is sleeved on the inner side of the first telescopic joint 202. A first adjustment knob 203 is provided between the second telescopic joint 207 and the first telescopic joint 202 to control the telescopic amount of the second telescopic joint 207. A third telescopic joint 204 is sleeved on the inner side of the second telescopic joint 207. A second knob is provided on the assembly of the third telescopic joint 204 and the second telescopic joint 207 to control the telescopic amount of the third telescopic joint 204.

[0042] The end of the third expansion joint 204 is connected to an anti-slip rubber head 206, which is used to enhance the friction between the third expansion joint 204 and the ground.

[0043] The specific implementation method is as follows: the movable component 4 acts as a counterweight for the connecting plate 301. At this time, the telescopic outer cylinder 305 is in an upward state under the elastic support of the first adapter spring 306. When the engineering body vibrates during the operation of the surveying instrument body 7, the connecting plate 301 shakes under the action of the movable component 4. During this process, on the one hand, the linkage plate rotates around the end of the telescopic inner shaft 303 through the second adapter 302. The telescopic inner shaft 303 performs corresponding telescopic movements within the telescopic outer cylinder 305, and pulls or pushes the first support spring 304 to cause it to move accordingly. On the one hand, the telescopic inner shaft 303 rotates around the second adapter 302, and the telescopic inner shaft 303 will drive the telescopic outer cylinder 305 to rotate around the third adapter 307, and twist the first adapter spring 306 to make it elastically deformed. The elastic support effect generated by the first support spring 304 and the first adapter spring 306 can consume the vibration force on the support assembly 2 to a certain extent. When the vibration force on the support assembly 2 is transmitted to the telescopic outer cylinder 305, it will be transmitted to the downward protrusion 504 through the sliding plate 503.

[0044] Specifically, such as Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the linkage component 3 includes a connecting plate 301, which is located inside multiple support components 2. Multiple second adapters 302 arranged in a ring array are connected to the connecting plate 301. The other end of the second adapter 302 is rotatably connected to a telescopic inner shaft 303. The other end of the telescopic inner shaft 303 is sleeved with a telescopic outer cylinder 305. The other end of the telescopic inner shaft 303 is also connected to a first support spring 304. The telescopic inner shaft 303 is elastically supported and connected to the inner bottom of the telescopic outer cylinder 305 through the first support spring 304. The other end of the telescopic outer cylinder 305 is rotatably connected to a third adapter 307. A first adapter spring 306 is connected to the telescopic outer cylinder 305. The telescopic outer cylinder 305 is elastically connected to the third adapter 307 through the first adapter spring 306. The third adapter 307 is connected to the corresponding first telescopic joint 202.

[0045] The specific implementation method is as follows: loosen the first adjustment knob 203 and the second adjustment knob 205 in sequence, adjust the support height of multiple support components 2 on the base 1 according to the measurement needs of the surveying instrument body 7, and after completing the height positioning adjustment, turn the first adjustment knob 203 and the second adjustment knob 205 again to make the extension and retraction adjustment between the first telescopic joint 202 and the second telescopic joint 207 and between the second telescopic joint 207 and the third telescopic joint 204 impossible.

[0046] Specifically, such as Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the moving component 4 includes a docking sleeve 401, which is snapped into the inner side of the connecting plate 301. A lifting shaft 402 is sleeved inside the docking sleeve 401. A second support spring 405 is sleeved on the lifting shaft 402. The lifting shaft 402 is elastically supported and connected to the connecting plate 301 through the second support spring 405. A folding groove is opened at the other end of the lifting shaft 402. Two support legs 403 are rotatably connected in the folding groove. A second transition spring 406 is connected to the support legs 403. The support legs 403 are elastically transitioned to the folding groove through the second transition spring 406. A moving wheel 404 is connected to the other end of the support legs 403. The pressing component 5 includes a pressing head 501, which is connected to the end of the lifting shaft 402. Multiple pressing grooves 502 are opened on the pressing head 501 corresponding to multiple telescopic outer cylinders 305.

[0047] A sliding plate 503 is slidably connected to the telescopic outer cylinder 305. A first groove is provided on the sliding plate 503. A slider is slidably connected in the first groove. The slider is connected to the telescopic outer cylinder 305. A third support spring is connected to the end face of the slider. The slider is elastically supported and connected to the inside of the first groove through the third support spring. The pressing component 5 includes a pressing head 501. A pressing protrusion 504 is connected to the sliding plate 503 corresponding to the pressing groove 502. A plurality of capillary micropores 505 are provided on the pressing protrusion 504. A plurality of second grooves 812 are provided on the inner wall of the filling sleeve 802. A relief groove 811 is provided on the mounting base 810 corresponding to the plurality of second grooves 812. A plurality of balls 813 are embedded in a single set of relief grooves 811 and second grooves 812. One ball 813 is smaller than the diameter of the other balls 813. The ball 813 has a hollow structure inside. Vibration damping holes are provided on the surface of the ball 813.

[0048] The specific implementation method is as follows: When moving the mobile foldable surveying device over a long distance, before the support component 2 is retracted and folded, the telescopic sleeve is pressed down forcefully. After being pressed down, the telescopic sleeve is in a downward-facing state. During this process, the end of the pressing head will enter the pressing groove 502 and exert downward pressure on the pressing head 501. The pressing head 501 pushes the lifting shaft 402 to slide downward in the docking sleeve 401 and squeezes the second support spring 405 to cause it to undergo elastic deformation. When the support leg 403 is completely protruding from the docking sleeve 401, the second transition spring 406 begins to perform an elastic reset movement. The two support legs 403 open, and the mobile foldable surveying device is moved by the moving wheels 404 installed at the ends of the support legs 403.

[0049] Working principle and usage:

[0050] Loosen the first adjustment knob 203 and the second adjustment knob 205 in sequence. Adjust the support height of multiple support components 2 on the base 1 according to the measurement needs of the surveying instrument body 7. After completing the height positioning adjustment, turn the first adjustment knob 203 and the second adjustment knob 205 again to make the extension and retraction adjustment between the first telescopic joint 202 and the second telescopic joint 207 and between the second telescopic joint 207 and the third telescopic joint 204 impossible, thus ensuring the basic stability of the surveying instrument body 7. Then, operate the adjustment tool to make fine adjustments according to the working needs of the surveying instrument body 7.

[0051] With the movable component 4 acting as a counterweight for the connecting plate 301, the telescopic outer cylinder 305 is in an upward-tilting state under the elastic support of the first adapter spring 306. When the engineering body vibrates during the operation of the surveying instrument body 7, the connecting plate 301 shakes under the action of the movable component 4. During this process, on the one hand, the linkage plate rotates around the end of the telescopic inner shaft 303 through the second adapter 302, and the telescopic inner shaft 303 performs corresponding telescopic movements within the telescopic outer cylinder 305, pulling or pushing the first support spring 304 to produce corresponding elasticity. On the other hand, the end of the telescopic inner shaft 303 rotates around the second adapter 302, and the telescopic inner shaft 303 will drive the telescopic outer cylinder 305 to rotate around the third adapter 307, and twist the first adapter spring 306 to make it elastically deformed. Utilizing the elastic support effect generated by the first support spring 304 and the first adapter spring 306, the vibration force on the support assembly 2 can be consumed to a certain extent. When the vibration force on the support assembly 2 is transmitted to the telescopic outer cylinder 305, it will be transmitted to the downward protrusion 504 through the sliding plate 503.

[0052] After the circuit board 803 is powered on, the first coil 804 is energized. At this time, a magnetic force is generated between the first magnetic block 807 and the first coil 804, which can push the mounting base 810 inside the filling sleeve 802 to move up and down. Meanwhile, the second coil 805 and the second magnetic block 808 can adjust the position of the mounting base 810 in the length direction perpendicular to the second coil 805 if there is any vibration during the measurement process, thus realizing vibration compensation for the surveying instrument body 7. Since the second magnet is set on the mounting base 810, the third magnetic block 809 and the third coil 806 can move the mounting base 810 longitudinally. At this time, the setting of the third magnetic block 809 and the third coil 806 can compensate for the deviation of the surveying instrument body 7 due to the vibration of the engineering body during the measurement process in the lateral direction.

[0053] When the mobile foldable surveying device is moved over a long distance, before the support component 2 is retracted and folded, the telescopic sleeve is pressed down forcefully. After being pressed down, the telescopic sleeve is in a downward-facing state. During this process, the end of the pressing head will enter the pressing groove 502 and exert downward pressure on the pressing head 501. The pressing head 501 pushes the lifting shaft 402 to slide downward in the docking sleeve 401 and squeezes the second support spring 405 to cause it to undergo elastic deformation. When the support leg 403 is completely extended out of the docking sleeve 401, the second transition spring 406 begins to perform an elastic reset movement. The two support legs 403 open, and the mobile foldable surveying device is moved by the moving wheels 404 installed at the ends of the support legs 403.

[0054] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A mobile, foldable surveying device, comprising a base (1), characterized in that, The base (1) is rotatably connected to a plurality of support components (2) arranged in a ring array. The inner side of the plurality of support components (2) is connected to a linkage component (3). The inner side of the linkage component (3) is engaged with a moving component (4). The moving component (4) and the plurality of linkage components (3) are provided with a pressing component (5). The plurality of linkage components (3) use the pressing component (5) to unfold the folded moving component (4). The support assembly (2) includes a first adapter (201), which is rotatably connected to the base (1), and the other end of the first adapter (201) is connected to a first telescopic joint (202). The linkage component (3) includes a connecting plate (301) located inside multiple support components (2). Multiple second adapters (302) arranged in a circular array are connected to the connecting plate (301). The other end of each second adapter (302) is rotatably connected to a telescopic inner shaft (303). The other end of the telescopic inner shaft (303) is fitted with a telescopic outer cylinder (305). The other end of the telescopic inner shaft (303) is also connected to a first support spring (304). The telescopic inner shaft (303) is elastically supported and connected to the inner bottom of the telescopic outer cylinder (305) via a first support spring (304). A third adapter (307) is rotatably connected to the other end of the telescopic outer cylinder (305). A first adapter spring (306) is connected to the telescopic outer cylinder (305). The telescopic outer cylinder (305) is elastically connected to the third adapter (307) via the first adapter spring (306). The third adapter (307) is connected to the corresponding first telescopic joint (202). The moving component (4) includes a docking sleeve (401), which is snapped into the inner side of the connecting plate (301). A lifting shaft (402) is sleeved inside the docking sleeve (401). A second support spring (405) is sleeved on the lifting shaft (402). The lifting shaft (402) is elastically supported and connected to the connecting plate (301) through the second support spring (405). A folding groove is provided at the other end of the lifting shaft (402). Two support legs (403) are rotatably connected in the folding groove. A second transition spring (406) is connected to the support legs (403). The support legs (403) are elastically transitioned to the folding groove through the second transition spring (406). A moving wheel (404) is connected to the other end of the support legs (403). The pressing assembly (5) includes a pressing head (501), which is connected to the upper end of the lifting shaft (402). The pressing head (501) has multiple pressing grooves (502) corresponding to multiple telescopic outer cylinders (305). A sliding plate (503) is slidably connected to the telescopic outer cylinder (305). A first sliding groove is provided on the sliding plate (503). A slider is slidably connected in the first sliding groove. The slider is connected to the telescopic outer cylinder (305). A third support spring is connected to the end face of the slider. The slider is elastically supported and connected to the inside of the first sliding groove through the third support spring. The pressing component (5) includes a pressing head (501), and a pressing protrusion (504) is connected to the pressing groove (502) on the sliding plate (503). The pressing protrusion (504) is provided with a plurality of micropores (505), and the micropores (505) are filled with micro particles. A surveying instrument body (7) is provided above the base (1), and a shake-proof component (8) is connected between the surveying instrument body (7) and the base (1).

2. The mobile foldable surveying device according to claim 1, characterized in that, The inner side of the first telescopic joint (202) is fitted with a second telescopic joint (207), and a first adjusting knob (203) is provided between the second telescopic joint (207) and the first telescopic joint (202) to control the telescopic amount of the second telescopic joint (207). The inner side of the second telescopic joint (207) is fitted with a third telescopic joint (204), and a second knob is provided between the third telescopic joint (204) and the second telescopic joint (207) to control the telescopic amount of the third telescopic joint (204). The end of the third expansion joint (204) is connected to an anti-slip rubber head (206) to enhance the friction between the third expansion joint (204) and the ground.

3. The mobile foldable surveying device according to claim 1, characterized in that, The anti-shake component (8) includes an outer shell (801), a circuit board (803) is installed on the inner bottom of the outer shell (801), a first coil (804) is provided on the circuit board (803), and a second coil (805) and a third coil (806) are respectively provided on the inner wall of the outer shell (801). The third coil (806), the second coil (805) and the first coil (804) are perpendicular to each other. A filler sleeve (802) is embedded in the inner side of the outer shell (801), and a mounting base (810) is embedded in the filler sleeve (802). The mounting base (810) is connected to the surveying instrument body (7). A first magnetic block (807), a second magnetic block (808) and a third magnetic block (809) are respectively embedded in the mounting base (810) at the positions corresponding to the first coil (804), the second coil (805) and the third coil (806).

4. A mobile, foldable surveying device according to claim 3, characterized in that, The inner wall of the filling sleeve (802) is provided with a plurality of second sliding grooves (812), and the mounting base (810) is provided with a relief groove (811) corresponding to the plurality of second sliding grooves (812). A plurality of balls (813) are embedded in a single set of relief grooves (811) and second sliding grooves (812), and one of the balls (813) is smaller than the diameter of the other balls (813).

5. A mobile, foldable surveying device according to claim 4, characterized in that, The ball (813) has a hollow structure inside, and vibration damping holes are formed on the surface of the ball (813).

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