CN219493672U

CN219493672U - Portable quick distance measuring device

Info

Publication number: CN219493672U
Application number: CN202320483063.1U
Authority: CN
Inventors: 朱荣; 张艳; 孙婉琪; 王育民
Original assignee: Gansu Architectural Design Research Institute Co ltd
Current assignee: Gansu Architectural Design Research Institute Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-08-08
Anticipated expiration: 2033-03-14

Abstract

The utility model discloses a portable rapid ranging device, which belongs to the technical field of ranging and comprises a mounting base, wherein four universal wheels are fixedly arranged on the lower surface of the mounting base, a sleeve is fixedly arranged on the upper surface of the mounting base, a supporting rod is slidably arranged in the sleeve, an up-and-down movement mechanism for driving the supporting rod to move up and down is arranged in the sleeve, the up-and-down movement mechanism, the sleeve, the supporting rod, a sliding block, a pointer, a mounting plate, a connecting block, a connecting frame, a placing frame and a range finder are arranged, the up-and-down movement mechanism drives the supporting rod to move up and down, the pointer is driven by the sliding block to move, the pointer is matched with a graduated scale on the outer surface of the sleeve, the length of the supporting rod extending out of the sleeve can be adjusted, the sleeve is driven by the movement of the sleeve to drive the mounting plate to move, the connecting frame is driven by the connecting block to synchronously move, and the connecting frame is driven by the connecting frame to move up and down by the placing frame to drive the range finder to move up and down, and fixed point ranging work at different height positions can be realized.

Description

Portable quick distance measuring device

Technical Field

The utility model relates to the technical field of distance measurement, in particular to a portable rapid distance measurement device.

Background

According to the national standard "engineering cost term Standard" issued by the urban and rural construction department of housing, engineering cost refers to construction cost of project estimated or actually paid in construction period, and the working processes of comprehensively utilizing knowledge and skills in management, economics, engineering technology and the like to predict, plan, control, calculate, analyze, evaluate and the like engineering cost are called engineering cost management. When construction cost is calculated, the construction area is required to be counted in advance for subsequent calculation, and the range finder is used as a precise measuring tool and is widely applied to various fields. The range finders can be divided into ultrasonic range finders, infrared range finders and laser range finders. The infrared range finder refers to a laser infrared range finder, namely a laser range finder. The infrared range finder is an instrument for precisely measuring distance by using modulated infrared light, and the measuring distance is generally 1-5 km.

When measuring building area, traditional rangefinder is inconvenient dismantles, leads to carrying and being inconvenient when transporting, simultaneously is because ground unevenness in the measurement process easily, makes the position that the rangefinder was put not on horizontal position, leads to the data value inaccuracy of measurement easily, and need carry out the measurement work of a plurality of positions or a plurality of angles when measuring, and traditional rangefinder is inconvenient carries out the regulation of height and angle, carries out the measurement through handheld rangefinder, appears angle deviation or staff's hand and takes place to rock the slope and lead to measuring inaccurate condition easily, uses comparatively inconveniently.

Disclosure of Invention

The portable rapid ranging device solves the problems that when the building floor area is measured, the traditional ranging device is inconvenient to detach, so that the carrying and the transportation are not very convenient, meanwhile, the position where the range finder is placed is not in the horizontal position easily because the ground is uneven in the measuring process, the measured data value is inaccurate easily, the measuring work of a plurality of positions or a plurality of angles is needed during the measuring, the traditional ranging device is inconvenient to adjust the height and the angle, and when the handheld range finder is used for measuring, the angle deviation or the hand of a worker is rocked and inclined, so that the measuring is inaccurate, and the use is inconvenient.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a portable quick ranging device, includes the installation base, the lower fixed surface of installation base installs four universal wheels, the upper surface fixed mounting of installation base has the sleeve, sliding mounting has bracing piece and is provided with the up-and-down motion mechanism that is used for driving bracing piece up-and-down motion in the sleeve, the surface fixed mounting of bracing piece has two slide bars and slide bar's side-mounting to have the pointer, the pointer is laminated with telescopic surface mutually, two bar slides have been seted up on the sleeve, two slide bar slidable mounting respectively in two bar slides, just telescopic surface mounting has the scale that the cooperation pointer used, the top fixed mounting of bracing piece has the mounting panel, the upper surface rotation of mounting panel installs two pivots, be provided with the angle adjustment mechanism that is used for adjusting pivot pivoted angle on the mounting panel, two the same connecting block of one end fixed mounting that the pivot is relative, the surface cover of connecting block is equipped with the link, the upper surface fixed mounting of link has the rack, be provided with the range finder in the rack.

By adopting the scheme, through setting up-and-down motion, the sleeve, the bracing piece, the sliding block, the pointer, the mounting panel, the connecting block, link, rack and distancer, utilize up-and-down motion to order about the bracing piece up-and-down motion, the bracing piece motion drives pointer motion through the sliding block, pointer motion cooperation sleeve surface's scale, can adjust the telescopic length of bracing piece extension, sleeve up-and-down motion drives the mounting panel motion, the mounting panel motion drives link synchronous motion through the connecting block, the link motion passes through rack drive distancer synchronous up-and-down motion, realize the altitude mixture control work to the distancer, can realize the fixed point ranging work to different high positions, be convenient for the staff to use, through setting up pivot and angle adjustment mechanism, utilize angle adjustment mechanism to adjust the rotation angle of pivot, the rotation of pivot drives link synchronous rotation through the connecting block, the link rotates and drives rack and distancer synchronous rotation, realize the angle adjustment to the distancer, thereby can be adjusted the angle of distancer according to the measurement needs, need not the staff to hold the distancer and adjust, the convenience of work is improved.

In the above scheme, it should be noted that the rangefinder is electrically connected with an external power supply.

In the above scheme, it should be noted that the three level bubbles are respectively horizontally arranged, obliquely arranged at forty-five degrees and vertically arranged.

As a preferable scheme of the utility model, the up-and-down movement mechanism comprises a threaded rod positioned in the sleeve, the threaded rod is rotatably arranged on the mounting base, the bottom end of the threaded rod is provided with a rotating plate, and the supporting rod is arranged on the outer surface of the threaded rod in a threaded manner.

By adopting the scheme, through setting up the threaded rod, rotating the handle and making the handle drive the threaded rod and rotate, the threaded rod rotates and drives the bracing piece up-and-down motion, and the bracing piece up-and-down motion drives the mounting panel motion, and the mounting panel motion drives rack and distancer synchronous up-and-down motion through connecting block and link, realizes the altitude mixture control work to the distancer, can realize the fixed point ranging work to different high positions, avoids the staff to hold the problem that the distancer appears rocking, improves the accuracy.

As a preferable scheme of the utility model, the angle adjusting mechanism comprises a worm rotatably arranged on the upper surface of the mounting plate, a handle is fixedly arranged at the end part of the worm, a worm wheel is fixedly arranged on the outer surface of one rotating shaft, and the worm wheel is meshed with the worm.

By adopting the scheme, through setting up worm and worm wheel, rotate the handle and make the handle drive the worm rotate, the worm rotates and drives the worm wheel and rotate, the worm wheel rotates and drives the synchronous rotation of pivot, realize the angle modulation work to the pivot, the pivot rotates the connecting block and rotates, the connecting block rotates and drives rack and distancer synchronous rotation through the link, and then can realize the angle modulation work to the distancer, can adjust the angle of distancer according to the measurement needs, need not the staff and hold the distancer and adjust, can effectively avoid the distancer to appear rocking the condition of shifting in the measurement process, further improve the accuracy of range finding.

As a preferable scheme of the utility model, grooves are formed on two sides of the connecting block, a second spring is fixedly arranged in each groove, a clamping block is fixedly arranged at the end part of the second spring, clamping grooves for clamping the clamping blocks are formed on two sides of the connecting frame, a second telescopic rod is arranged in the second spring, and two ends of the second telescopic rod are fixedly arranged on the inner wall of the grooves and the clamping blocks respectively.

By adopting the scheme, through setting up fixture block, second spring and telescopic link, utilize telescopic link two can play the effect of supporting the direction to second spring, avoid appearing rocking the skew condition in the second motion process of spring, improve the stability of second motion of spring, further guarantee the stability of fixture block motion, press the fixture block and make the fixture block break away from the draw-in groove, can relieve the fixing to the link, thereby can dismantle link and rack, portable or subsequent change, loosen the fixture block and make the fixture block, utilize elasticity of second spring to order about the fixture block to get back to the normal position fast, can be better fix the link, realize the installation work to the link, and is easy operation, convenient to use.

As a preferable scheme of the utility model, a plurality of first springs are fixedly arranged on the inner wall of the placing frame, the same clamping frame is fixedly arranged at the end parts of the first springs, a first telescopic rod is arranged in the first springs, and two ends of the first telescopic rod are respectively and fixedly arranged on the inner wall of the placing frame and the clamping plate.

By adopting the scheme, through setting up first, telescopic link and carriage, utilize first can be to the effect of supporting the direction together of spring, avoid the condition of rocking the skew to appear in the motion process of first spring, improve the stability of first motion of spring, further guarantee the steady motion of carriage, the elasticity that utilizes first spring orders about the carriage to move to the front side, can carry out spacing fixedly to the distancer, realize the installation work to the distancer, backward movement carriage makes the carriage break away from the distancer, and then can remove the fixation to the distancer, be convenient for dismantle the distancer and be suitable for, and is easy to operate, convenient to use.

As a preferable scheme of the utility model, the side surface of the placing frame is fixedly provided with the fixing plate, the side surface of the fixing plate is provided with three mounting grooves, and the mounting grooves are fixedly provided with level bubbles.

By adopting the scheme, whether the ranging instrument belongs to the horizontal position can be accurately observed through the level bubbles by setting the level bubbles, the ranging accuracy can be effectively improved, the forty-five degree state, the horizontal state and the vertical state are respectively detected by the three level bubbles, the accuracy of measuring angles is ensured, the measuring work of a plurality of angles is realized, and the using range is improved.

In the utility model, the following components are added:

this portable quick ranging device is through setting up fixture block, spring two and telescopic link two, utilize telescopic link two can play the effect of supporting the direction to spring two, avoid appearing rocking the skew condition in the motion process of spring two, improve the stability of spring two motion, further guarantee the stability of fixture block motion, press the fixture block and make the fixture block break away from the draw-in groove, can relieve the fixation to the link, thereby can dismantle link and rack, portable or subsequent change, loosen the fixture block and make the fixture block, utilize the elasticity of spring two to order about the fixture block to get back to the normal position fast, can be better fixed the link, realize the installation work to the link, and is easy operation, convenient to use.

According to the portable rapid ranging device, the up-and-down movement mechanism, the sleeve, the supporting rod, the sliding block, the pointer, the mounting plate, the connecting block, the connecting frame, the placing frame and the range finder are arranged, the up-and-down movement mechanism is utilized to drive the supporting rod to move up and down, the sliding block drives the pointer to move, the pointer moves to match with the graduated scale on the outer surface of the sleeve, the length of the supporting rod extending out of the sleeve can be adjusted, the sleeve moves up and down to drive the mounting plate to move, the mounting plate moves to drive the connecting frame to synchronously move through the connecting block, the connecting frame moves to drive the range finder to synchronously move up and down through the placing frame, the height adjustment work of the range finder is realized, the fixed-point ranging work on different height positions can be realized, and the portable rapid ranging device is convenient for workers to use;

according to the portable rapid distance measuring device, the rotating shaft and the angle adjusting mechanism are arranged, the rotating angle of the rotating shaft can be adjusted by the angle adjusting mechanism, the rotating shaft rotates to drive the connecting frame to synchronously rotate through the connecting block, the connecting frame rotates to drive the placing frame and the distance measuring instrument to synchronously rotate, so that the angle adjustment of the distance measuring instrument can be realized, the angle of the distance measuring instrument can be adjusted according to measurement requirements, the distance measuring instrument is not required to be held by a worker, and the convenience of work is improved;

this portable quick ranging device is through setting up the level bubble, whether it belongs to horizontal position to observe the range finder that can be accurate through the level bubble, can effectively improve the accuracy of range finding, and three level bubble detects forty-five degree states and horizontal state and vertical state respectively, guarantees the accuracy of measuring angle, realizes the measurement work to a plurality of angles, improves the scope of use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of a sleeve according to the present utility model;

FIG. 3 is a schematic view of the angle adjusting mechanism of the present utility model;

FIG. 4 is a schematic view of a rack according to the present utility model;

fig. 5 is a schematic cross-sectional structure of the connecting block of the present utility model.

In the figure: 1. a mounting base; 2. a universal wheel; 3. a sleeve; 4. a support rod; 5. a mounting plate; 6. a rotating shaft; 7. a connecting block; 8. a connecting frame; 9. a placing rack; 10. a range finder; 11. a clamping frame; 12. a first telescopic rod; 13. a first spring; 14. a worm; 15. a worm wheel; 16. a fixing plate; 17. leveling the air bubbles; 18. a clamping block; 19. a second telescopic rod; 20. a second spring; 21. a threaded rod; 22. a slide bar; 23. a pointer.

Detailed Description

Examples

Referring to fig. 1-5, the utility model provides a portable rapid ranging device, which comprises a mounting base 1, four universal wheels 2 are fixedly arranged on the lower surface of the mounting base 1, a sleeve 3 is fixedly arranged on the upper surface of the mounting base 1, a supporting rod 4 is slidably arranged in the sleeve 3, an up-and-down movement mechanism for driving the supporting rod 4 to move up and down is arranged in the sleeve 3, the up-and-down movement mechanism comprises a threaded rod 21 positioned in the sleeve 3, the threaded rod 21 is rotatably arranged on the mounting base 1, a rotating plate is arranged at the bottom end of the threaded rod 21, the supporting rod 4 is threadedly arranged on the outer surface of the threaded rod 21, a handle is rotated to drive the threaded rod 21 to rotate, the threaded rod 21 is rotated to drive the supporting rod 4 to move up and down, a mounting plate 5 is driven to move up and down, the mounting plate 5 is driven to drive a placing frame 9 and a range finder 10 to move up and down synchronously through a connecting block 7 and a connecting frame 8, the height adjustment work of the range finder 10 can be realized, the fixed-point ranging work for different height positions can be realized, the problem of shaking of a worker is avoided, and the accuracy is improved;

the outer surface of the supporting rod 4 is fixedly provided with two sliding rods 22, the side surfaces of the sliding rods 22 are provided with pointers 23, the pointers 23 are attached to the outer surface of the sleeve 3, the sleeve 3 is provided with two strip-shaped slideways, the two sliding rods 22 are respectively and slidably arranged in the two strip-shaped slideways, the outer surface of the sleeve 3 is provided with a scale used in cooperation with the pointers 23, the top end of the supporting rod 4 is fixedly provided with a mounting plate 5, the upper surface of the mounting plate 5 is rotatably provided with two rotating shafts 6, the mounting plate 5 is provided with an angle adjusting mechanism used for adjusting the rotating angle of the rotating shafts 6, the angle adjusting mechanism comprises a worm 14 rotatably arranged on the upper surface of the mounting plate 5, the end part of the worm 14 is fixedly provided with a handle, one of the outer surfaces of the rotating shafts 6 is fixedly provided with a worm wheel 15, the worm wheel 15 is meshed with the worm 14, the worm wheel 15 is meshed with the worm wheel 15, the worm wheel 15 is arranged with the worm wheel 15, the handle is rotated to drive the worm 14 to rotate so that the worm wheel 15 rotates to drive the worm wheel 6 to rotate synchronously, the rotating shafts 6 rotate 7 rotate, the connecting block 10 rotate synchronously through a connecting frame 8 to drive a placing frame 9 and a distance meter 10 to rotate synchronously, and the distance meter 10 to rotate, and the distance meter 10 can be accurately adjusted according to the distance meter 10, and the distance meter can be accurately adjusted by the distance meter, and the distance meter can be further adjusted by the distance meter 10, and the distance meter can be accurately and can be adjusted by the distance meter, and the distance meter can 10 can be adjusted by the distance measurement can be accurately and the distance measurement and the distance meter, and the distance 10;

the connecting block 7 is fixedly arranged at one end, opposite to the two rotating shafts 6, of the connecting block 7, the connecting frame 8 is sleeved on the outer surface of the connecting block 7, grooves are formed in the two sides of the connecting block 7, the second spring 20 is fixedly arranged in the two grooves, the clamping block 18 is fixedly arranged at the end part of the second spring 20, clamping grooves for clamping the clamping block 18 are formed in the two sides of the connecting frame 8, the second telescopic rod 19 is arranged in the second spring 20, the two ends of the second telescopic rod 19 are respectively fixedly arranged on the inner wall of the grooves and the clamping block 18, the second spring 20 and the second telescopic rod 19 are used for supporting and guiding the second spring 20, the shaking and shifting of the second spring 20 in the moving process is avoided, the moving stability of the second spring 20 is improved, the moving stability of the clamping block 18 is further ensured, the clamping block 18 is separated from the clamping groove by pressing the 18, the fixing of the connecting frame 8 can be relieved, the connecting frame 8 and the placing frame 9 can be disassembled, the connecting frame 8 is convenient to carry or the subsequent to replace the clamping block 18, the clamping block 18 is driven to quickly return to the original position by the elasticity of the second spring 20, the connecting frame 8 can be better fixed, the connecting frame 8 can be easily installed, and the connecting frame can be conveniently operated;

the upper surface of the connecting frame 8 is fixedly provided with the placing frame 9, the distance meter 10 is arranged in the placing frame 9, the inner wall of the placing frame 9 is fixedly provided with a plurality of first springs 13, the end parts of the plurality of first springs 13 are fixedly provided with the same clamping frame 11, the plurality of first springs 13 are internally provided with expansion, the first springs 13, the expansion rod 12 and the clamping frame 11 are arranged, the expansion rod 12 can play a role in supporting and guiding the first springs 13, the condition of shaking and shifting in the moving process of the first springs 13 is avoided, the moving stability of the first springs 13 is improved, the stable movement of the clamping frame 11 is further ensured, the elasticity of the first springs 13 is utilized to drive the clamping frame 11 to move forwards, the distance meter 10 can be limited and fixed, the installation work of the distance meter 10 is realized, the clamping frame 11 is separated from the distance meter 10 by moving the clamping frame 11 backwards, the fixation of the distance meter 10 can be relieved, the distance meter 10 is convenient to detach and applicable, the distance meter 10 is easy to operate and convenient to use;

the side surface of the placing frame 9 is fixedly provided with the fixing plate 16, the side surface of the fixing plate 16 is provided with three mounting grooves, the mounting grooves are internally and fixedly provided with the leveling air bubbles 17, whether the range finder 10 device belongs to a horizontal position or not can be accurately observed through the leveling air bubbles 17 by arranging the leveling air bubbles 17, the accuracy of ranging can be effectively improved, the three leveling air bubbles 17 respectively detect forty-five degrees, the horizontal state and the vertical state, the accuracy of measuring angles is ensured, the measuring work of a plurality of angles is realized, and the application range is improved;

through setting up-and-down motion, sleeve 3, bracing piece 4, the sliding block, pointer 23, mounting panel 5, connecting block 7, link 8, rack 9 and distancer 10, utilize up-and-down motion to order about bracing piece 4 up-and-down motion, the bracing piece 4 motion drives pointer 23 motion through the sliding block, pointer 23 motion is cooperated the scale of sleeve 3 surface, can adjust the length that bracing piece 4 stretches out sleeve 3, sleeve 3 up-and-down motion drives mounting panel 5 motions, the mounting panel 5 motions drives link 8 synchronous motion through connecting block 7, link 8 motions drives distancer 10 synchronous up-and-down motion through rack 9, realize the altitude mixture control work to distancer 10, can realize the fixed point ranging work to different high positions, be convenient for the staff to use, through setting up pivot 6 and angle adjustment mechanism, utilize angle adjustment mechanism to adjust pivot 6's rotation angle, pivot 6 rotates through connecting block 7 and drives link 8 synchronous rotation, link 8 rotates and drives rack 9 and distancer 10 synchronous rotation, realize the angle adjustment to distancer 10, thereby can carry out the angle adjustment to distancer 10 according to the measurement needs, need not the handheld readjustment of distancer 10, the convenience of work.

Working principle: when in use, the clamping plate is pulled to the rear side, then the range finder 10 is placed in the placement frame 9, then the clamping plate is loosened, the clamping plate is made to approach the range finder 10 under the action of the elastic force of the spring 13, the fixing work of the range finder 10 is realized, when in ranging work, the handle is driven to rotate by rotating the handle, the worm 14 rotates to drive the rotating shaft 6 to synchronously rotate, the rotating shaft 6 rotates to drive the connecting block 7 to rotate, the connecting block 7 rotates to drive the placement frame 9 to rotate by the connecting frame 8, the placement frame 9 rotates to drive the range finder 10 to synchronously rotate, the angle adjustment work of the range finder 10 is realized, forty-five-degree state, the horizontal state and the vertical state can be respectively detected by matching with the penetrating level bubble 17, the accuracy of ranging is ensured, simultaneously, the rotating plate is rotated to drive the threaded rod 21 to rotate, the threaded rod 21 rotates to drive the supporting rod 4 to move upwards, the supporting rod 4 moves upwards to drive the mounting plate 5 to move, the mounting plate 5 moves to drive the placing frame 9 and the range finder 10 to move upwards synchronously through the connecting block 7 and the connecting frame 8, height adjustment work of the range finder 10 is achieved, fixed-point ranging work of different height positions can be achieved, after measurement is finished, the handle is rotated to enable the threaded rod 21 to drive the supporting rod 4 to move downwards, the supporting rod 4 is retracted into the sleeve 3, then the clamping blocks 18 on two sides of the connecting blocks 7 are pressed, the clamping blocks 18 are separated from the clamping grooves to enter the grooves, the connecting frame 8 is detached, the clamping plates are pulled to enable the clamping plates to be separated from the range finder 10, and the range finder 10 is taken down.

Claims

1. The utility model provides a portable quick distance measuring device, its characterized in that, including installation base (1), the lower surface fixed mounting of installation base (1) has four universal wheels (2), the upper surface fixed mounting of installation base (1) has sleeve (3), be provided with in sleeve (3) slidable mounting in bracing piece (4) and sleeve (3) and be used for driving bracing piece (4) up-and-down motion mechanism, the surface fixed mounting of bracing piece (4) has two slide bar (22) and slide bar (22) side-mounting has pointer (23), pointer (23) laminating mutually with the surface of sleeve (3), two offered two bar slides on sleeve (3) slide, two slide bar (22) respectively slidable mounting are in two bar slides, just the scale that cooperation pointer (23) used is installed to the surface mounting of sleeve (3), the top fixed mounting of mounting panel (5) has mounting panel (5), the upper surface rotation of mounting panel (5) installs two slide bar (22) and installs pointer (6), the surface mounting panel (6) are equipped with pivot (7) and are installed in the pivot (7) of the same angle regulation, pivot (7) are equipped with one end of pivot (7), the upper surface of link (8) is fixed mounting has rack (9), be provided with distancer (10) in rack (9).

2. The portable rapid ranging device according to claim 1, wherein the up-and-down movement mechanism comprises a threaded rod (21) positioned in the sleeve (3), the threaded rod (21) is rotatably mounted on the mounting base (1), a rotating plate is mounted at the bottom end of the threaded rod (21), and the supporting rod (4) is threadedly mounted on the outer surface of the threaded rod (21).

3. A portable rapid ranging apparatus according to claim 1, wherein the angle adjusting mechanism comprises a worm (14) rotatably mounted on the upper surface of the mounting plate (5), a handle is fixedly mounted at an end of the worm (14), a worm wheel (15) is fixedly mounted on an outer surface of one of the rotating shafts (6), and the worm wheel (15) is engaged with the worm (14).

4. The portable rapid ranging device according to claim 1, wherein grooves are formed in two sides of the connecting block (7), two springs (20) are fixedly installed in the grooves, clamping blocks (18) are fixedly installed at ends of the springs (20), clamping grooves for the clamping blocks (18) to clamp in are formed in two sides of the connecting frame (8), two telescopic rods (19) are arranged in the springs (20), and two ends of each telescopic rod (19) are fixedly installed on the inner wall of the groove and the corresponding clamping block (18) respectively.

5. The portable rapid ranging device according to claim 4, wherein a plurality of first springs (13) are fixedly installed on the inner wall of the placement frame (9), the same clamping frame (11) is fixedly installed at the end parts of the plurality of first springs (13), telescopic rods (12) are arranged in the plurality of first springs (13), and two ends of each telescopic rod (12) are fixedly installed on the inner wall of the placement frame (9) and the clamping plate respectively.

6. The portable rapid ranging device according to claim 1, wherein a fixing plate (16) is fixedly installed on the side surface of the placement frame (9), three mounting grooves are formed in the side surface of the fixing plate (16), and leveling bubbles (17) are fixedly installed in the mounting grooves.