Elevation measurement equipment convenient to adjust

Abstract

The utility model discloses elevation measurement equipment convenient to adjust, relates to the technical field of measurement equipment, and aims to improve the problem that a level gauge and a tripod still need to be carried and transported separately, are independently mounted and adjusted after being transported to a measurement site, and are disassembled and adjusted again after being used. The device comprises a connecting base, a protection box is fixedly connected to the center of the upper surface of the connecting base, a measuring assembly is arranged in the protection box, and a first pneumatic assembly is fixedly connected to the center of the lower surface of the connecting base; the bottom of the first pneumatic assembly is fixedly connected with an electric lifting rod used for driving the measuring assembly to ascend and descend. Through cooperation of the connecting base, the measuring assembly, the first pneumatic assembly, the electric lifting rod, the second pneumatic assembly, the telescopic supporting rod, the third pneumatic assembly and the first ground nail, the mounting, dismounting and adjusting difficulty of the device is effectively reduced, and the working efficiency of workers is improved.

Description

Technical Field

[0001] The present application relates to the technical field of measuring equipment, and in particular to an altitude measuring equipment that is easy to adjust. Background Art

[0002] Elevation refers to the distance from a point along the plumb line to the absolute base surface, which is called absolute elevation, or elevation for short. The distance from a point along the plumb line to a hypothetical leveling base surface is called hypothetical elevation. In the current elevation measurement environment, the most commonly used elevation measurement equipment is the level;

[0003] The existing level is still fixed with the most common tripod when in use, but in actual use, the level and the tripod still need to be carried and transported separately. At the same time, the level needs to be provided with simple protection during transportation to avoid bumps and collisions during transportation and affect the performance. After being transported to the measurement site, the level and the tripod need to be installed and adjusted separately, which affects the efficiency of the staff.

[0004] In the process of implementing the present application, the inventors found that there are at least the following problems in this technology: the level and the tripod still need to be carried and transported separately, and after being transported to the measurement site, the level and the tripod need to be individually installed and adjusted, and after use, they need to be disassembled and adjusted again, which affects the efficiency of the staff. Therefore, an elevation measuring device that is easy to adjust is now proposed. Utility Model Content

[0005] In order to improve the problem that the level and tripod still need to be carried and transported separately, installed and adjusted separately after being transported to the measurement site, and disassembled and adjusted again after use, which affects the work efficiency of the staff, the present application provides an easy-to-adjust altitude measuring device.

[0006] This application provides an easy-to-adjust height measurement device, which adopts the following technical solutions:

[0007] An adjustable elevation measuring device comprises a connecting seat, a protective box is fixedly connected to the center of the upper surface of the connecting seat, a measuring component is arranged inside the protective box, a first pneumatic component is fixedly connected to the center of the lower surface of the connecting seat, an electric lifting rod for driving the measuring component to be lifted and lowered is fixedly connected to the bottom of the first pneumatic component, a second pneumatic component connected to the first pneumatic component is rotatably connected to the outer wall of the connecting seat, a telescopic support rod is arranged inside the second pneumatic component, when the electric lifting rod drives the measuring component to be lifted and lowered, the telescopic support rod can be driven to be extended and retracted through the cooperation of the first pneumatic component and the second pneumatic component, a third pneumatic component connected to the second pneumatic component is fixedly connected to the bottom of the electric lifting rod, a first ground nail is arranged inside the third pneumatic component, when the second pneumatic component drives the telescopic support rod to be extended and retracted, the first ground nail can be driven to be lifted and lowered through the cooperation of the second pneumatic component and the third pneumatic component.

[0008] By adopting the above technical scheme, through the cooperation of the connecting seat, the protective box, the measuring component, the first pneumatic component, the electric lifting rod, the second pneumatic component, the telescopic support rod, the third pneumatic component and the first ground nail, the protective box can provide simple protection for the measuring component during the carrying and transportation of the device, thereby preventing the measuring component from being bumped during transportation and affecting the service life of the device as much as possible. When the device is moved to the measuring point, the electric lifting rod drives the measuring component to rise to a predetermined use height, and at the same time drives the telescopic support rod to descend through the first pneumatic component and the second pneumatic component to fix the device. While the telescopic support rod descends, the first ground nail is driven to descend and inserted into the soil through the third pneumatic component, thereby improving the stability of the device after fixation. When the device is used, the electric lifting rod drives the measuring component to descend to the protection range of the protective box, and at the same time drives the telescopic support rod to rise and retract through the cooperation of the first pneumatic component and the second pneumatic component, thereby driving the first ground nail to rise and retract, effectively reducing the difficulty of installation, disassembly and adjustment of the device, and improving the work efficiency of the staff.

[0009] Optionally, the first pneumatic component includes a first cylinder fixedly connected to the center of the lower surface of the connecting seat, a first piston is arranged inside the first cylinder and the first piston is driven by an electric lifting rod, and the space inside the first cylinder above the first piston is connected to the second pneumatic component.

[0010] By adopting the above technical solution, through the arrangement of the first cylinder and the first piston, the electric lifting rod can drive the first piston to rise and fall by driving the measuring assembly to rise and fall, thereby changing the gas pressure in the connecting part inside the first cylinder above the first piston.

[0011] Optionally, the second pneumatic component includes a second cylinder rotatably connected to the outer wall of the connecting seat, a second piston is arranged inside the second cylinder and the second piston is fixedly connected to the telescopic support rod, the space inside the second cylinder above the second piston is connected to the first cylinder and the space inside the second cylinder below the second piston is connected to the third pneumatic component.

[0012] By adopting the above technical solution, through the arrangement of the second cylinder and the second piston, the second piston can be driven to move by changing the gas pressure in the connecting part above the first piston inside the first piston, thereby affecting the gas pressure in the connecting part below the second piston inside the second cylinder.

[0013] Optionally, the third pneumatic component includes a third cylinder fixedly connected to the lower surface of the electric lifting rod, a third piston is arranged inside the third cylinder and the third piston is elastically connected to the first ground nail, and the space inside the third cylinder above the third piston is connected to the second cylinder.

[0014] By adopting the above technical solution, the gas pressure in the connecting part below the second piston in the second cylinder can be changed, so that the gas pressure in the part above the third piston in the third cylinder can be changed, thereby driving the third piston to move.

[0015] Optionally, a spring cylinder is fixedly connected to the center of the lower surface of the third piston, a combined variable-rigidity spring is fixedly connected to the inner top wall of the spring cylinder, and the end of the combined variable-rigidity spring away from the third piston is fixedly connected to the first ground nail, and sliders are slidably connected to the bottom end of the inner wall of the third cylinder, and the bottom end of the slider is rotatably connected to the second ground nail, and an inclined groove compatible with the first ground nail is provided between the second ground nails, and a first limiting ring is fixedly connected to the top of the slider close to the first ground nail, and a second limiting ring compatible with the first limiting ring is fixedly connected to the outer wall of the first ground nail below the first limiting ring, and a preliminary fixing seat is fixedly connected to the bottom end of the outer wall of the third cylinder.

[0016] By adopting the above technical solution, through the arrangement of the spring tube, the combined variable rigidity spring, the slider, the second ground nail, the inclined groove, the first limiting ring, the second limiting ring and the preliminary fixing seat, the device can penetrate into the ground to different depths according to the softness of the soil when used on the soil ground, thereby effectively improving the stability of the device during use.

[0017] Optionally, the outer wall of the second cylinder is fixedly connected to the first sleeve, the outer wall of the first cylinder is slidably connected to the second sleeve, the side of the first sleeve close to the second sleeve is rotatably connected to a connecting rod, and the end of the connecting rod away from the first sleeve is rotatably connected to the second sleeve.

[0018] By adopting the above technical solution, through the cooperation of the first sleeve, the second sleeve and the connecting rod, when the staff unfolds a single second pneumatic component, the remaining second pneumatic components can be unfolded at the same time, thereby minimizing the staff's work flow and improving work efficiency.

[0019] Optionally, the measuring assembly includes a support plate fixedly connected to the top end of the electric lifting rod and a measuring device body rotatably connected to the center of the upper surface of the support plate.

[0020] By adopting the above technical solution, the staff can rotate the measuring device body on the support plate.

[0021] Optionally, both sides of the upper surface of the protective box are rotatably connected with cover doors, both sides of the lower surface of the cover doors are fixedly connected with metal wires, one end of the metal wire away from the cover door is fixedly connected to a support plate, and the lower surface of the cover door is provided with a rubber pad.

[0022] By adopting the above technical solution, through the setting of the cover door and the metal wire, the electric lifting rod can directly drive the support plate and the measuring equipment body to rise and fall. When the device needs to be unfolded and used, the electric lifting rod drives the support plate and the measuring equipment body to rise and opens the cover door at the same time. When the device is used, the electric lifting rod can drive the support plate and the measuring equipment body to descend, thereby enhancing the protection of the device to the measuring equipment body while avoiding affecting the work efficiency of the staff as much as possible.

[0023] Optionally, an air inlet check valve connected to the protection box is provided on one side of the outer wall of the protection box, an air outlet check valve connected to the protection box is provided on the side of the outer wall of the protection box away from the air inlet check valve, an inflatable airbag compatible with the air outlet check valve is fixedly connected to the outer wall of the protection box on all sides, a groove is provided at the top of one side of the inner wall of the protection box, a solenoid valve connected to the inflatable airbag is provided inside the groove, a distance sensor electrically connected to the solenoid valve is provided on one side of the inner bottom wall of the protection box, and a nozzle connected to the solenoid valve is provided on the side of the solenoid valve away from the inflatable airbag.

[0024] By adopting the above technical solution, after use, the lens of the measuring device body is rotated to face the solenoid valve. When the device is unfolded again, the solenoid valve opens while the measuring device body rises, and the nozzle sprays air to clean the dust on the surface of the lens of the measuring device body.

[0025] In summary, this application has the following beneficial effects:

[0026] 1. The present application cooperates with a connecting seat, a measuring assembly, a first pneumatic assembly, an electric lifting rod, a second pneumatic assembly, a telescopic support rod, a third pneumatic assembly and a first ground nail. When the device moves to the measuring point, the electric lifting rod drives the measuring assembly to rise to a predetermined use height, and at the same time drives the telescopic support rod to descend through the first pneumatic assembly and the second pneumatic assembly to fix the device. When the telescopic support rod descends, the third pneumatic assembly drives the first ground nail to descend and insert into the soil, thereby improving the stability of the device after fixation. When the device is used, the electric lifting rod drives the measuring assembly to descend to the protection range of the protective box, and at the same time drives the telescopic support rod to rise and retract through the cooperation of the first pneumatic assembly and the second pneumatic assembly, thereby driving the first ground nail to rise and retract, effectively reducing the difficulty of installation, disassembly and adjustment of the device, and improving the work efficiency of the staff;

[0027] 2. In the present application, the protective box can provide simple protection for the measuring component during the transportation of the device through the cooperation of the connecting seat, the protective box, the measuring component and the telescopic support rod. When the device is moved to the measuring point, the electric lifting rod drives the measuring component to rise to the predetermined use height, and the measuring point can be measured without the need to disassemble and install the device. This can improve the working efficiency of the device after it is moved while ensuring the service life of the device as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of this application;

[0029] Figure 2 It is a schematic diagram of the main cross-sectional structure of this application;

[0030] Figure 3 It is a schematic diagram of the main cross-sectional structure of the present application when it is deployed on a relatively hard soil ground;

[0031] Figure 4 It is a schematic diagram of the main structure of this application;

[0032] Figure 5 It is a schematic diagram of the main cross-sectional structure of the present application when it is deployed on relatively soft soil ground.

[0033] Figure 6 This application Figure 2 A schematic diagram of the structure enlargement in the middle; DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3, an elevation measuring device that is easy to adjust, includes a connecting seat 1, a protective box 2 is fixedly connected to the center of the upper surface of the connecting seat 1, a measuring component 3 is arranged inside the protective box 2, the measuring component 3 includes a supporting plate 301 fixedly connected to the top of the electric lifting rod 5 and a measuring device body 302 rotatably connected to the center of the upper surface of the supporting plate 301 (the measuring device body 302 has a level adjustment knob), both sides of the upper surface of the protective box 2 are rotatably connected with cover doors 21 (both sides of the protective box 2 are provided with a certain slope, which can try to avoid the opening and closing angle of the cover door 21 being greater than 180 degrees), and the cover Metal wires 22 are fixedly connected to both sides of the lower surface of the door 21, and one end of the metal wires 22 away from the cover door 21 is fixedly connected to the support plate 301. A rubber pad 23 is provided on the lower surface of the cover door 21. A first pneumatic component 4 is fixedly connected to the center of the lower surface of the connecting seat 1. An electric lifting rod 5 for driving the measuring component 3 to be lifted is fixedly connected to the bottom of the first pneumatic component 4. The electric lifting rod 5 can directly drive the support plate 301 and the measuring device body 302 to be lifted. When the device needs to be deployed for use, the electric lifting rod 5 drives the support plate 301 and the measuring device body 302 rises (rises until the measuring device 302 reaches the predetermined use height), and at the same time pushes open the cover door 21 (the rubber pad 23 can try to avoid the measuring device body 302 from having a rigid collision with the cover door 21 when pushing open the cover door 21, thereby affecting the service life of the measuring device body 302). When the device is used, the electric lifting rod 5 can drive the support plate 301 and the measuring device body 302 to descend (in this process, the support plate 301 pulls the cover door 21 to close again through the metal wire 22). The outer wall of the connecting seat 1 is connected to the first pneumatic component 4 for rotation around. The second pneumatic component 6 (the number of the second pneumatic components 6 is three and they are evenly arranged around the outer wall of the connecting seat 1), the first pneumatic component 4 includes a first cylinder 401 fixedly connected to the center of the lower surface of the connecting seat 1, a first piston 402 is arranged inside the first cylinder 401 and the first piston 402 is driven by an electric lifting rod 5, and the space inside the first cylinder 401 above the first piston 402 is connected to the second pneumatic component 6 (openings connected to the external environment are opened on both sides of the inner bottom wall of the first cylinder 401, thereby ensuring the upper and lower air pressure balance of the first piston 402).

[0036] Reference Figure 2 , Figure 4 and Figure 5, a telescopic support rod 7 is arranged inside the second pneumatic assembly 6. When the electric lifting rod 5 drives the measuring assembly 3 to rise and fall, the telescopic support rod 7 can be driven to extend and retract through the cooperation of the first pneumatic assembly 4 and the second pneumatic assembly 6. The bottom of the electric lifting rod 5 is fixedly connected to a third pneumatic assembly 8 connected to the second pneumatic assembly 6. The second pneumatic assembly 6 includes a second cylinder 601 rotatably connected to the outer wall of the connecting seat 1. A second piston 602 is arranged inside the second cylinder 601 and the second piston 602 is fixedly connected to the telescopic support rod 7. The outer wall of the second cylinder 601 is fixedly connected to the The first sleeve 18 is connected to the outer wall of the first cylinder 401, and the second sleeve 19 is slidably connected to the side of the first sleeve 18 close to the second sleeve 19. The connecting rod 20 is rotatably connected to the second sleeve 19, and the end of the connecting rod 20 away from the first sleeve 18 is rotatably connected to the second sleeve 19. When the staff unfolds one of the second cylinders 601 and the telescopic support rod 7 located in the second cylinder 601, the connecting rod 20 can drive the second sleeve 19 to slide, thereby driving the remaining second cylinders 601 and the telescopic support rod 7 located inside the second cylinder 601 to unfold synchronously. The space above the second piston 602 is connected to the first cylinder 401, and the space below the second piston 602 in the second cylinder 601 is connected to the third pneumatic assembly 8 (the first cylinder 401 and the second cylinder 601 are all connected to the second cylinder 601 and the third cylinder 801 through a hose). When the device needs to be deployed, the electric lifting rod 5 drives the support plate 301 and the measuring device body 302 to rise, while driving the first piston 402 to move upward (thereby squeezing the gas above the first piston 402 in the first cylinder 401 into the second cylinder 601). The second piston 602 and the telescopic support rod 7 are driven downward by the air pressure. When the device is folded up after use, the electric lifting rod 5 drives the support plate 301 and the measuring device body 302 to move downward, and at the same time drives the first piston 402 to move downward (the gas inside the second cylinder 601 above the second piston 602 enters the space inside the first cylinder 401 above the first piston 402 through the air pressure). Under the action of the air pressure, the telescopic support rod 7 and the second piston 602 are driven to rise and be folded up along the second cylinder 601.

[0037] Reference Figure 4 , Figure 5 and Figure 6The third pneumatic assembly 8 includes a third cylinder 801 fixedly connected to the lower surface of the electric lifting rod 5, a third piston 802 is arranged inside the third cylinder 801, and the third piston 802 is elastically connected to the first ground nail 9, the space above the third piston 802 inside the third cylinder 801 is connected to the second cylinder 601, and the first ground nail 9 is arranged inside the third pneumatic assembly 8. When the second pneumatic assembly 6 drives the telescopic support rod 7 to be extended and retracted, the first ground nail 9 can be driven to be raised and lowered through the cooperation of the second pneumatic assembly 6 and the third pneumatic assembly 8. When the device is deployed and used, the second piston 602 and the telescopic support rod 7 move downward (and then squeeze the gas below the second piston 602 inside the second cylinder 601 to the space above the third piston 802 inside the third cylinder 801), and the third piston 802 and the first ground nail 9 are driven downward by air pressure. When the device is folded after use, the second piston 602 and the telescopic support rod 7 are driven by the first pneumatic assembly 4 and the electric telescopic rod 5. The third piston 802 moves upward (so that the gas in the third cylinder 801 above the third piston 802 enters the space in the second cylinder 601 below the second piston 602 through the action of air pressure). Under the action of air pressure, the third piston 801 and the first ground nail 9 move upward. The center of the lower surface of the third piston 802 is fixedly connected to a spring cylinder 10. The inner top wall of the spring cylinder 10 is fixedly connected to a combined variable rigidity spring 11. The end of the combined variable rigidity spring 11 away from the third piston 802 is fixedly connected to the first ground nail. 9, the bottom end of the inner wall of the third cylinder 801 is slidably connected with a slider 12, the bottom end of the slider 12 is rotatably connected with a second ground nail 13, an inclined groove 14 adapted to the first ground nail 9 is provided between the second ground nails 13, the top of the slider 12 close to the first ground nail 9 is fixedly connected with a first limiting ring 15, and the outer wall of the first ground nail 9 is located below the first limiting ring 15 and is fixedly connected with a second limiting ring 16 adapted to the first limiting ring 15 (to prevent the second ground nail 13 from falling off from the inside of the third cylinder 801),The bottom end of the outer wall of the third cylinder 801 is fixedly connected with a preliminary fixing seat 17 all around, and a bleed valve (not shown in the figure) connected to the third cylinder can be set at the top of one side of the outer wall of the third cylinder 801. When the device is unfolded and fixed, if the device is placed on a hard road surface such as cement asphalt, the device is first placed above the observation point through the preliminary fixing seat 17, and the second cylinder 601 and the telescopic support rod 7 located in the second cylinder 601 are unfolded. The electric lifting rod 5 drives the support plate 301 and the measuring device body 302 to rise to the predetermined use position, and drives the telescopic support rod 7 to descend to contact the ground, so as to further support the device, and open the bleed valve, thereby avoiding the third piston 802 and the first ground nail 9 are moved downward by air pressure to lift the device (affecting the stability of the device). If the device is placed on a harder soil ground, the device is initially placed above the observation point through the preliminary fixing seat 17, and the air release valve is closed first. The staff applies a certain downward pressure on the device, and then the second cylinder 601 and the telescopic support rod 7 located in the second cylinder 601 are unfolded. The electric lifting rod 5 drives the support plate 301 and the measuring device body 302 to rise to the predetermined use position, and drives the telescopic support rod 7 to descend. The spiked part at the bottom end of the telescopic support rod 7 penetrates into the soil to further support the device. At the same time, the third piston 802 and the first ground nail 9 are lowered by air pressure, and the first ground nail 9 is tilted. The inclined groove 14 drives the second ground nail 13 to slide downward. After contacting the ground, the combined variable rigidity spring 11 is compressed first. When the deformation reaches the maximum degree, the third piston 802 continues to drive the first ground nail 9 and the second ground nail 13 to move downward until the second ground nail 13 is partially inserted into the ground, thereby improving the stability of the device as much as possible. When the device is used in relatively soft soil, the device is also preliminarily placed at the observation point through the preliminary fixing seat 17, the second cylinder 601 and the telescopic support rod 7 located in the second cylinder 601 are unfolded, and the electric lifting rod 5 drives the support plate 301 and the measuring device body 302 to rise to the predetermined use position, and drives the telescopic support rod 7 to descend until the telescopic support rod 7 is partially inserted into the soil, so as to stabilize the device. The third piston 802 and the first ground nail 9 are further supported by the third cylinder 801. At the same time, the third piston 802 and the first ground nail 9 are lowered by the air pressure. The first ground nail 9 drives the second ground nail 13 to slide downward through the inclined groove 14. After contacting the ground, the combined variable rigidity spring 11 is compressed first. When the deformation reaches a certain degree, the combined variable rigidity spring 11 becomes stronger and stops deforming (the rigidity of the combined variable rigidity spring 11 increases with the degree of deformation). The third piston 802 continues to drive the first ground nail 9 to move downward until the second ground nail 13 is fully extended out of the third cylinder 801, and expands to the surroundings during the downward movement of the first ground nail 9 and the second limit ring 16. The first ground nail 9 moves downward to penetrate deeper into the soil (further improving the stability of the device when in use).

[0038] Reference Figure 1 , Figure 2 and Figure 4An air inlet check valve 24 connected to the protection box 2 is arranged on one side of the outer wall of the protection box 2, and an air outlet check valve 25 connected to the protection box 2 is arranged on the side of the outer wall of the protection box 2 away from the air inlet check valve 24. An inflatable airbag 26 compatible with the air outlet check valve 25 is fixedly connected to the outer wall of the protection box 2 on all sides. When the support plate 301 follows the electric lifting rod 5 to descend, the gas below the support plate 301 inside the protection box 2 is squeezed (the support plate 301 is compatible with the protection box 2 and the gas enters the inflatable airbag 26 through the air outlet check valve 25). A groove 27 is arranged on the top of one side of the inner wall of the protection box 2, and a solenoid valve 28 connected to the inflatable airbag 26 is arranged inside the groove 27. A solenoid valve 28 electrically connected to the solenoid valve 28 is arranged on one side of the inner bottom wall of the protection box 2. A distance sensor 29 is connected, and a nozzle 30 connected to the solenoid valve 28 is arranged on the side of the solenoid valve 28 away from the inflatable airbag 26. A control panel (not shown in the figure, which can be arranged on the bottom wall of the protective box 2) is electrically connected between the distance sensor 29 and the solenoid valve 28. After use, the lens of the measuring device body 302 is first rotated to face the solenoid valve 28. When the device is unfolded again, the measuring device body 302 rises while the solenoid valve 28 opens, and the nozzle 30 sprays air to clean the dust on the surface of the lens of the measuring device body 302 (the dust falls to the upper surface of the support plate 301, and the dust on the surface of the support plate 301 can be wiped clean after the device is unfolded, thereby minimizing the wear and tear of the lens caused by the staff directly wiping the lens).

[0039] The implementation principle of the present application is as follows: the electric lifting rod 5 can directly drive the support plate 301 and the measuring device body 302 to rise and fall. When the device needs to be deployed for use, the electric lifting rod 5 drives the support plate 301 and the measuring device body 302 to rise (rise until the measuring device 302 reaches a predetermined use height), and at the same time pushes open the cover door 21 (the rubber pad 23 can try to avoid a rigid collision between the measuring device body 302 and the cover door 21 when the measuring device body 302 pushes open the cover door 21, thereby affecting the service life of the measuring device body 302). While the electric lifting rod 5 drives the support plate 301 and the measuring device body 302 to rise, it drives the first piston 402 to move upward (thereby squeezing the gas inside the first cylinder 401 above the first piston 402 to The space inside the second cylinder 601 located above the second piston 602) drives the second piston 602 and the telescopic support rod 7 to move downward under the action of air pressure (and then squeezes the gas inside the second cylinder 601 located below the second piston 602 to the space inside the third cylinder 801 located above the third piston 802), drives the third piston 802 and the first ground nail 9 to move downward under the action of air pressure, and a vent valve (not shown in the figure) connected to the third cylinder can be set at the top of one side of the outer wall of the third cylinder 801. When the device is unfolded and fixed, if the device is placed on a hard road surface such as cement asphalt, first place the device above the observation point through the preliminary fixing seat 17, and then the second cylinder 601 and the gas located in the second cylinder 60 1, the telescopic support rod 7 in the electric lifting rod 5 drives the support plate 301 and the measuring device body 302 to rise to the predetermined use position, and drives the telescopic support rod 7 to descend to abut the ground to further support the device, and opens the air release valve, thereby preventing the third piston 802 and the first ground nail 9 from moving downward under the action of air pressure to lift the device (affecting the stability of the device). If the device is placed on a harder soil ground, the device is initially placed above the observation point through the preliminary fixing seat 17, and the air release valve is closed first. The staff applies a certain force on the top of the device, and then the second cylinder 601 and the telescopic support rod 7 located in the second cylinder 601 are unfolded, and the electric lifting rod 5 drives the support plate 301 and the measuring device body 302 to rise to the predetermined use position. position, and drives the telescopic support rod 7 to descend, and the spiked part at the bottom end of the telescopic support rod 7 penetrates into the soil to further support the device. At the same time, the third piston 802 and the first ground nail 9 are lowered by the air pressure, and the first ground nail 9 drives the second ground nail 13 to slide downward through the inclined groove 14. After contacting the ground, the combined variable rigidity spring 11 is compressed first. When the deformation reaches the maximum extent, the third piston 802 continues to drive the first ground nail 9 and the second ground nail 13 to move downward until the second ground nail 13 is partially inserted into the ground, thereby improving the stability of the device as much as possible. When the device is used in relatively soft soil, the device is also preliminarily placed at the observation point through the preliminary fixing seat 17, and the second cylinder 601 and the telescopic support rod 7 located in the second cylinder 601 are unfolded.The electric lifting rod 5 drives the support plate 301 and the measuring device body 302 to rise to the predetermined use position, and drives the telescopic support rod 7 to descend until the telescopic support rod 7 is partially inserted into the soil to further support the device. At the same time, the third piston 802 and the first ground nail 9 are lowered by the air pressure, and the first ground nail 9 drives the second ground nail 13 to slide downward through the inclined groove 14. After contacting the ground, the combined variable rigidity spring 11 is compressed first. When the deformation reaches a certain degree, the combined variable rigidity spring 11 becomes stronger and stops deforming (the rigidity of the combined variable rigidity spring 11 increases with the degree of deformation). The third piston 802 continues to drive the first ground nail 9 to move downward until the second ground nail 13 is completely extended out of the third cylinder 801, and expands to the surrounding areas during the downward movement of the first ground nail 9 and the second limit ring 16. The first ground nail 9 moves downward to penetrate deeper into the soil (further improving the stability of the device during use). When the device is used, the electric lifting rod 5 can drive the support plate 30 1 and the measuring device body 302 are lowered (during this process, the support plate 301 pulls the cover door 21 through the metal wire 22 to complete the closing), the electric lifting rod 5 drives the support plate 301 and the measuring device body 302 to move downward, and at the same time drives the first piston 402 to move downward (so that the gas inside the second cylinder 601 located above the second piston 602 enters the space inside the first cylinder 401 located above the first piston 402 through the action of air pressure), and under the action of air pressure, drives the telescopic support rod 7 and the second piston 602 to rise and retract along the second cylinder 601 (and then causes the gas inside the third cylinder 801 located above the third piston 802 to enter the space inside the second cylinder 601 located below the second piston 602 through the action of air pressure), drives the third piston 801 and the first ground nail 9 to move upward, and then drives the second limiting ring 16 to rise, and the second limiting ring 16 pulls up the first limiting ring 15 and the slider 14, and then drives the second ground nail 13 to retract.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable height measuring device, comprising a connecting seat (1), characterized in that: A protection box (2) is fixedly connected to the center of the upper surface of the connection seat (1), a measuring assembly (3) is arranged inside the protection box (2), a first pneumatic assembly (4) is fixedly connected to the center of the lower surface of the connection seat (1), and an electric lifting rod (5) for driving the measuring assembly (3) to move up and down is fixedly connected to the bottom of the first pneumatic assembly (4); The outer wall of the connection seat (1) is rotatably connected to a second pneumatic assembly (6) connected to the first pneumatic assembly (4); a telescopic support rod (7) is arranged inside the second pneumatic assembly (6); when the electric lifting rod (5) drives the measuring assembly (3) to be lifted or lowered, the telescopic support rod (7) can be driven to be extended or retracted by the cooperation of the first pneumatic assembly (4) and the second pneumatic assembly (6); the bottom of the electric lifting rod (5) is fixedly connected to a third pneumatic assembly (8) connected to the second pneumatic assembly (6); a first ground nail (9) is arranged inside the third pneumatic assembly (8); when the second pneumatic assembly (6) drives the telescopic support rod (7) to be extended or retracted, the first ground nail (9) can be driven to be lifted or retracted by the cooperation of the second pneumatic assembly (6) and the third pneumatic assembly (8).

2. The adjustable height measuring device according to claim 1, characterized in that: The first pneumatic component (4) comprises a first cylinder (401) fixedly connected to the center of the lower surface of the connecting seat (1); a first piston (402) is arranged inside the first cylinder (401) and the first piston (402) is driven by an electric lifting rod (5); and the space inside the first cylinder (401) and above the first piston (402) is connected to the second pneumatic component (6).

3. The adjustable height measuring device according to claim 2, characterized in that: The second pneumatic assembly (6) comprises a second cylinder (601) rotatably connected to the outer wall of the connecting seat (1), a second piston (602) is arranged inside the second cylinder (601) and the second piston (602) is fixedly connected to the telescopic support rod (7), the space inside the second cylinder (601) above the second piston (602) is connected to the first cylinder (401) and the space inside the second cylinder (601) below the second piston (602) is connected to the third pneumatic assembly (8).

4. The adjustable height measuring device according to claim 3, characterized in that: The third pneumatic assembly (8) comprises a third cylinder (801) fixedly connected to the lower surface of the electric lifting rod (5); a third piston (802) is arranged inside the third cylinder (801) and the third piston (802) is elastically connected to the first ground nail (9); the space inside the third cylinder (801) above the third piston (802) is connected to the second cylinder (601).

5. The adjustable height measuring device according to claim 4, characterized in that: A spring cylinder (10) is fixedly connected to the center of the lower surface of the third piston (802); a combined variable rigidity spring (11) is fixedly connected to the inner top wall of the spring cylinder (10); and one end of the combined variable rigidity spring (11) away from the third piston (802) is fixedly connected to the first ground nail (9); a slider (12) is slidably connected to the bottom end of the inner wall of the third cylinder (801); a second ground nail (13) is rotatably connected to the bottom end of the slider (12); a plurality of second ground nails (13) are provided with inclined grooves (14) matching the first ground nail (9) facing each other; a first limiting ring (15) is fixedly connected to the top end of the slider (12) near the first ground nail (9); a second limiting ring (16) matching the first limiting ring (15) is fixedly connected to the outer wall of the first ground nail (9) below the first limiting ring (15); and a preliminary fixing seat (17) is fixedly connected to the bottom end of the outer wall of the third cylinder (801).

6. The adjustable height measuring device according to claim 3, characterized in that: The outer wall of the second cylinder (601) is fixedly connected to the first sleeve (18), the outer wall of the first cylinder (401) is slidably connected to the second sleeve (19), the side of the first sleeve (18) close to the second sleeve (19) is rotatably connected to a connecting rod (20), and the end of the connecting rod (20) away from the first sleeve (18) is rotatably connected to the second sleeve (19).

7. The adjustable height measuring device according to claim 1, characterized in that: The measuring assembly (3) comprises a support plate (301) fixedly connected to the top end of the electric lifting rod (5) and a measuring device body (302) rotatably connected to the center of the upper surface of the support plate (301).

8. The adjustable height measuring device according to claim 1, characterized in that: Both sides of the upper surface of the protection box (2) are rotatably connected to cover doors (21), and both sides of the lower surface of the cover door (21) are fixedly connected to metal wires (22), one end of the metal wire (22) away from the cover door (21) is fixedly connected to a support plate (301), and the lower surface of the cover door (21) is provided with a rubber pad (23).

9. The adjustable height measuring device according to claim 7, characterized in that: An air inlet check valve (24) connected to the protective box (2) is arranged on one side of the outer wall of the protective box (2); an air outlet check valve (25) connected to the protective box (2) is arranged on the side of the outer wall of the protective box (2) away from the air inlet check valve (24); an inflatable air bag (26) compatible with the air outlet check valve (25) is fixedly connected to the outer wall of the protective box (2) on all sides; a groove (27) is arranged on the top of one side of the inner wall of the protective box (2); an electromagnetic valve (28) connected to the inflatable air bag (26) is arranged inside the groove (27); a distance sensor (29) electrically connected to the electromagnetic valve (28) is arranged on one side of the inner bottom wall of the protective box (2); and a nozzle (30) connected to the electromagnetic valve (28) is arranged on the side of the electromagnetic valve (28) away from the inflatable air bag (26).

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