CN212179874U - Measuring tool for building detection - Google Patents

Abstract

The utility model relates to the technical field of auxiliary detection devices, in particular to a measuring tool for building detection, which not only saves a large amount of manpower and time, but also improves the stability of a theodolite and reduces the limitation thereof by arranging the device; including the theodolite, the platform, three first fixed plates of group, three sliding sleeves of group, three sliding plates of group, three fixed blocks of group, three operation boxes of group, three kicking blocks of group, three contact pins of group, three counter weight magnetic columns of group, six connecting rods of group, six striking blocks of group and three electromagnetic generator of group, the theodolite is installed on the platform, three rotatable the installing in the platform bottom of first fixed plate of group, three first fixed plate downside of group are installed respectively to three sliding sleeves of group, three sliding plates of group respectively with three sliding sleeve sliding connection of group, three operation box top intercommunication of group are provided with the opening, three electromagnetic generator of group are installed respectively on three operation chamber of group in three opening outsides.

Description

Measuring tool for building detection

Technical Field

The utility model relates to a detect auxiliary device's technical field, especially relate to a measuring tool for building detection.

Background

As is well known, the conventional method for assisting the construction inspection equipment is to fix the theodolite on a platform and then manually insert the lower sides of the legs mounted on the lower side of the platform into the ground to fix the theodolite; however, the theodolite is fixed on the platform, then the lower side of the supporting leg installed on the lower side of the platform is manually inserted into the soil to fix the theodolite, so that the theodolite is found in the use process, the supporting leg is manually inserted into the soil, a large amount of manpower and time are consumed, and the limitation is high.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a measuring tool for building detection which has not only saved a large amount of manpowers and time to also improved the stability of theodolite, reduced its limitation.

The utility model discloses a measuring tool for building detection, which comprises a theodolite, a platform, three groups of first fixed plates, three groups of sliding sleeves, three groups of sliding plates, three groups of fixed blocks, three groups of operation boxes, three groups of top blocks, three groups of contact pins, three groups of counterweight magnetic columns, six groups of connecting rods, six groups of impact blocks and three groups of electromagnetic generators, wherein the theodolite is arranged on the platform, the three groups of first fixed plates are rotatably arranged at the bottom end of the platform, the three groups of sliding sleeves are respectively arranged at the lower sides of the three groups of first fixed plates, the three groups of sliding plates are respectively connected with the three groups of sliding sleeves in a sliding way, three groups of power devices are arranged on the three groups of first fixed plates and are respectively connected with the three groups of sliding plates in a transmission way, the three groups of fixed blocks and the three groups of, and the two groups of through holes are communicated, three groups of operation cavities are arranged in the three groups of operation boxes, the inner sides of the three groups of operation cavities are respectively communicated with three groups of working cavities, three groups of top blocks are positioned in the three groups of working cavities, three groups of contact pins are respectively arranged on the three groups of top blocks, the lower sides of the three groups of contact pins penetrate through holes of the operation box and are positioned in the through holes of the fixed blocks, the three groups of contact pins are respectively connected with the three groups of fixed blocks and the through holes of the three groups of operation boxes in a sliding way, the three groups of counterweight magnetic columns are respectively positioned in the three groups of operation cavities, the six groups of connecting rods are respectively arranged on the three groups of counterweight magnetic columns, the six groups of impact blocks are respectively arranged on the six groups of connecting rods, and six groups of striking blocks are respectively located three groups of top block upside and downside, and three group of control box top intercommunication are provided with the opening, and three group of electromagnetic generator are installed respectively on three group's operation chamber in three group's openings outsides to three group's electromagnetic generator output is located three group's openings department.

The utility model discloses a measuring tool for building detection, power device include motor, pivot, shaft coupling, screw rod, swivel nut, guide rail and two sets of sliders, and the motor is installed on first fixed plate, and the pivot top is connected with the motor output end, and the pivot is passed through the shaft coupling and is connected with the screw rod, and the screw rod is connected with swivel nut spiral shell dress, and the swivel nut is installed on the sliding plate, and the guide rail is installed on first fixed plate, but two sets of sliders all with guide rail sliding connection, but two sets of sliders are installed respectively on swivel nut and sliding plate.

The utility model discloses a measuring tool for building detection still includes six group's baffles, and six group's baffles install three group's work intracavity walls respectively to six group's baffle positions all correspond with the position of three group's kicking blocks.

The utility model discloses a measuring tool for building detection still includes three buffer blocks of group, and three buffer blocks of group are installed respectively at three operation chamber of group downside to three buffer blocks of group correspond with three counter weight magnetism post positions of group respectively.

The utility model discloses a measuring tool for building detection still includes three second fixed plates of group and three first contact switch of group, and three second fixed plates of group are installed respectively at three sliding plate downside of group, and three first contact switch of group install respectively on three second fixed plates of group to three first contact switch of group correspond with three sliding sleeve positions of group respectively.

The utility model discloses a measuring tool for building detection still includes three group's mounts and three group's contact plates, and three group's mounts are evenly installed respectively on the platform, and three group's contact plates are installed respectively on three group's mounts.

The utility model discloses a measuring tool for building detection still includes three group's guard shields, and three group's guard shields are installed respectively on three first fixed plates of group, all include sliding plate, motor, pivot, shaft coupling, screw rod, swivel nut, guide rail and two sets of sliders in three group's guard shields.

The utility model discloses a measuring tool for building detection still includes three group's third fixed plates, three group's fourth fixed plates and three group's second contact switch, and three group's third fixed plates are installed respectively at three group's swivel nut inboards, and three group's fourth fixed plates are installed respectively at three group's guard shield inner walls, and three group's second contact switch is installed respectively on three group's fourth fixed plates to three group's second contact switch corresponds with three group's third fixed plate positions respectively.

The utility model discloses a measuring tool for building detection still includes three group's gyro wheels, and three group's gyro wheels are installed respectively at three group's sliding plate downside.

Compared with the prior art, the beneficial effects of the utility model are that: three groups of power devices are opened to drive three groups of sliding plates to slide on three groups of sliding sleeves, when the height of the theodolite reaches the required height, the three power devices are closed, then three groups of electromagnetic generators are controlled to enable the magnetic fields of the three groups of electromagnetic generators and three groups of counterweight magnetic columns to be the same, the three groups of electromagnetic generators and the three groups of counterweight magnetic columns repel each other, the three groups of counterweight magnetic columns drive six groups of impact blocks to move downwards through six groups of connecting rods, the upper three groups of impact blocks impact the three groups of top blocks, the three groups of top blocks drive the three groups of contact pins to move downwards, so that the three groups of contact pins are inserted into the ground, when the depth of the three groups of contact pins extending into the ground reaches the required value, the three groups of electromagnetic generators are closed to fix the whole theodolite, when the theodolite needs to move after one detection on a building site, the three groups of electromagnetic generators are, make three group's electromagnetic generators opposite with the magnetic field of three group's counter weight magnetic columns, three group's electromagnetic generators then attract with three group's counter weight magnetic columns each other, three group's counter weight magnetic columns then drive six group's striking block upward movements through six group's connecting rods, three group's striking blocks of downside then strike three group's kicking blocks, three group's kicking blocks then drive three group's contact pin upward movements, when three group's contact pins and soil separation and lie in the through-hole of three group's fixed blocks, close three group's electromagnetic generators, later open three group power device, make three group's power device drive three group's sliding plates and slide to initial position on three group's sliding sleeves, then wholly remove the theodolite, through setting up this equipment, a large amount of manpower and time have not.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged schematic view of the control box of FIG. 1;

FIG. 3 is an enlarged schematic view of the motor of FIG. 1;

FIG. 4 is a schematic bottom view of the control box of FIG. 1;

in the drawings, the reference numbers: 1. a theodolite; 2. a platform; 3. a first fixing plate; 4. a sliding sleeve; 5. a sliding plate; 6. a fixed block; 7. an operation box; 8. an operating chamber; 9. a working chamber; 10. a top block; 11. inserting a pin; 12. a counterweight magnetic column; 13. a connecting rod; 14. an impact block; 15. an electromagnetic generator; 16. a motor; 17. a rotating shaft; 18. a coupling; 19. a screw; 20. a threaded sleeve; 21. a guide rail; 22. a slider; 23. a baffle plate; 24. a buffer block; 25. a second fixing plate; 26. a first contact switch; 27. a fixed mount; 28. a contact plate; 29. a shield; 30. a third fixing plate; 31. a fourth fixing plate; 32. a second contact switch; 33. and a roller.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the measuring tool for building inspection of the present invention comprises a theodolite 1, a platform 2, three sets of first fixing plates 3, three sets of sliding sleeves 4, three sets of sliding plates 5, three sets of fixing blocks 6, three sets of operation boxes 7, three sets of top blocks 10, three sets of contact pins 11, three sets of counterweight magnetic columns 12, six sets of connecting rods 13, six sets of impact blocks 14, and three sets of electromagnetic generators 15, wherein the theodolite 1 is mounted on the platform 2, the three sets of first fixing plates 3 are rotatably mounted at the bottom end of the platform 2, the three sets of sliding sleeves 4 are respectively mounted at the lower sides of the three sets of first fixing plates 3, the three sets of sliding plates 5 are respectively slidably connected with the three sets of sliding sleeves 4, three sets of power devices are arranged on the three sets of first fixing plates 3, the three sets of power devices are respectively drivingly connected with the three sets of sliding plates 5, the three sets of, the bottom ends of the three groups of operation boxes 7 are communicated with the fixed block 6 and are provided with through holes, the two groups of through holes are communicated, three groups of operation cavities 8 are arranged in the three groups of operation boxes 7, the inner sides of the three groups of operation cavities 8 are respectively communicated and provided with three groups of working cavities 9, three groups of top blocks 10 are positioned in the three groups of working cavities 9, three groups of inserting needles 11 are respectively arranged on the three groups of top blocks 10, the lower sides of the three groups of inserting needles 11 penetrate through holes of the operation boxes 7 and are positioned in the through holes of the fixed block 6, the three groups of inserting needles 11 are respectively connected with the through holes of the three groups of fixed blocks 6 and the three groups of operation boxes 7 in a sliding manner, three groups of counterweight magnetic columns 12 are respectively positioned in the three groups of operation cavities 8, six groups of connecting rods 13 are respectively arranged on the three groups of counterweight magnetic columns 12, six groups of, the three groups of electromagnetic generators 15 are respectively arranged on the three groups of operation cavities 8 outside the three groups of openings, and the output ends of the three groups of electromagnetic generators 15 are positioned at the three groups of openings; the three groups of power devices are opened to drive the three groups of sliding plates 5 to slide on the three groups of sliding sleeves 4, when the height of the theodolite 1 reaches the required height, the three groups of power devices are closed, then the three groups of electromagnetic generators 15 are controlled to enable the magnetic fields of the three groups of electromagnetic generators 15 and the three groups of counterweight magnetic columns 12 to be the same, the three groups of electromagnetic generators 15 and the three groups of counterweight magnetic columns 12 repel each other, the three groups of counterweight magnetic columns 12 drive the six groups of impact blocks 14 to move downwards through the six groups of connecting rods 13, the upper three groups of impact blocks 14 impact the three groups of top blocks 10, the three groups of top blocks 10 drive the three groups of contact pins 11 to move downwards, so that the three groups of contact pins 11 are inserted into the ground, when the depth of the three groups of contact pins 11 extending into the ground reaches the required value, the three groups of electromagnetic generators 15 are closed to fix the whole theodolite 1, when the theodolite 1 needs to, by controlling the three groups of electromagnetic generators 15, the magnetic fields of the three groups of electromagnetic generators 15 are opposite to the magnetic fields of the three groups of counterweight magnetic columns 12, the three groups of electromagnetic generators 15 attract the three groups of counterweight magnetic columns 12, the three groups of counterweight magnetic columns 12 drive the six groups of impact blocks 14 to move upwards through the six groups of connecting rods 13, the lower three groups of impact blocks 14 impact the three groups of top blocks 10, the three groups of top blocks 10 drive the three groups of contact pins 11 to move upwards, when the three groups of contact pins 11 are separated from the ground and are positioned in the through holes of the three groups of fixed blocks 6, the three groups of electromagnetic generators 15 are closed, then the three groups of power devices are opened, so that the three groups of power devices drive the three groups of sliding plates 5 to slide on the three groups of sliding sleeves 4 to the initial positions, then move theodolite 1 is whole, through setting up this equipment, not only saved a large amount of manpowers and time to also improved theodolite 1's stability, reduced its limitation.

The utility model discloses a measuring tool for building detection, power device include motor 16, pivot 17, shaft coupling 18, screw rod 19, swivel nut 20, guide rail 21 and two sets of slider 22, motor 16 installs on first fixed plate 3, the top of pivot 17 is connected with the motor 16 output, pivot 17 is connected with screw rod 19 through shaft coupling 18, screw rod 19 is connected with swivel nut 20 spiral shell dress, swivel nut 20 installs on sliding plate 5, guide rail 21 installs on first fixed plate 3, two sets of slider 22 all with guide rail 21 slidable connection, two sets of slider 22 install respectively on swivel nut 20 and sliding plate 5; through opening motor 16, make pivot 17 drive screw rod 19 and rotate, screw rod 19 then with the spiral shell dress of swivel nut 20, swivel nut 20 then drives the motion of sliding plate 5, and two sets of sliders 22 then slide on guide rail 21, provide power for sliding plate 5 to can adjust according to the height requirement of difference, improve the practicality.

The utility model discloses a measuring tool for building detection, still include six group baffles 23, six group baffles 23 install three groups of working chamber 9 inner walls respectively, and six group baffles 23 position all correspond with three group kicking blocks 10 position; when the top block 10 is contacted with the lower side baffle plate 23, the depth of the inserting needle 11 extending into the ground reaches a required value, and meanwhile, the equipment can be prevented from being damaged due to collision.

The utility model discloses a measuring tool for building detection still includes three groups of buffer blocks 24, and three groups of buffer blocks 24 are installed respectively at the lower side of three groups of operation chambers 8, and three groups of buffer blocks 24 correspond to three groups of counter weight magnetic columns 12 respectively; through setting up buffer block 24, can play the cushioning effect to counter weight magnetic pillar 12, improve the life of counter weight magnetic pillar 12.

The utility model discloses a measuring tool for building detection still includes three groups of second fixed plates 25 and three groups of first contact switches 26, and three groups of second fixed plates 25 are installed respectively in three groups of sliding plates 5 downside, and three groups of first contact switches 26 are installed respectively on three groups of second fixed plates 25, and three groups of first contact switches 26 correspond with three groups of sliding sleeve 4 positions respectively; by providing the second fixed plate 25 and the first contact switch 26, when the sliding sleeve 4 contacts the first contact switch 26, it means that the sliding plate 5 has reached the shortest length, thereby preventing collision between the devices.

The utility model discloses a measuring tool for building detection, still include three group's mounts 27 and three group's contact plates 28, three group's mounts 27 are installed on platform 2 evenly respectively, three group's contact plates 28 are installed on three group's mounts 27 respectively; by arranging the fixing frame 27 and the contact plate 28, when the first fixing plate 3 contacts the contact plate 28, it is indicated that the first fixing plate 3 reaches the maximum opening angle, and the controllability is improved.

The utility model discloses a measuring tool for building detection still includes three groups of guard shields 29, and three groups of guard shields 29 are installed respectively on three groups of first fixed plates 3, all include sliding plate 5, motor 16, pivot 17, shaft coupling 18, screw rod 19, swivel nut 20, guide rail 21 and two groups of sliders 22 in three groups of guard shields 29; by arranging the protective cover 29, the functions of protecting the sliding plate 5, the motor 16, the rotating shaft 17, the coupler 18, the screw rod 19, the threaded sleeve 20, the guide rail 21 and the two groups of sliding blocks 22 can be achieved, and therefore the service life of the equipment is prolonged.

The utility model discloses a measuring tool for building detection still includes three groups of third fixed plates 30, three groups of fourth fixed plates 31 and three groups of second contact switches 32, and three groups of third fixed plates 30 are installed respectively in three groups of swivel nuts 20 inboards, and three groups of fourth fixed plates 31 are installed respectively in three groups of guard shields 29 inner walls, and three groups of second contact switches 32 are installed respectively on three groups of fourth fixed plates 31, and three groups of second contact switches 32 correspond with three groups of third fixed plates 30 position respectively; by arranging the third fixing plate 30, the fourth fixing plate 31 and the second contact switch 32, when the second contact switch 32 is in contact with the third fixing plate 30, it means that the sliding plate 5 is extended to the maximum length, and the second contact switch 32 turns off the motor 16, thereby improving controllability.

The utility model discloses a measuring tool for building detection, still include three group's gyro wheels 33, three group's gyro wheels 33 are installed respectively at three group's sliding plate 5 undersides; by providing the roller 33, the sliding plate 5 is easily moved, and convenience is improved.

The utility model discloses a measuring tool for building detection, it is at work, at first open motor 16 among three power device, make pivot 17 drive screw rod 19 and rotate, screw rod 19 then with the screw shell 20 spiral shell dress, screw shell 20 then drives the motion of sliding plate 5, two sets of sliders 22 then slide on guide rail 21, three sets of sliding plate 5 motion then slide on three sets of sliding sleeve 4, when the height of theodolite 1 reaches the requirement height, close motor 16 among three power device, then through controlling three sets of electromagnetic generator 15, make three sets of electromagnetic generator 15 the same with three sets of magnetic fields of counter weight post 12, three sets of electromagnetic generator 15 then repel each other with three sets of counter weight magnetic post 12, three sets of counter weight magnetic post 12 then drive six sets of striking block 14 through six sets of connecting rod 13 and move downwards, three sets of striking block 14 of top block 10 of three sets of striking, three sets of top block 10 then drive three sets of contact pin 11 and move downwards, so that the three groups of pins 11 are inserted into the ground, when the three groups of top blocks 10 contact with the three groups of baffles 23 on the lower side, the fact that the depth of the three groups of pins 11 extending into the ground reaches a required value is indicated, then the three groups of electromagnetic generators 15 are closed, so that the theodolite 1 is integrally fixed, when the theodolite 1 needs to move after one detection on a building site is finished, the three groups of electromagnetic generators 15 are opposite to the magnetic fields of the three groups of counterweight magnetic columns 12 by controlling the three groups of electromagnetic generators 15, the three groups of electromagnetic generators 15 are mutually attracted with the three groups of counterweight magnetic columns 12, the three groups of counterweight magnetic columns 12 drive the six groups of impact blocks 14 to move upwards through the six groups of connecting rods 13, the three groups of bottom impact blocks 14 impact the three groups of top blocks 10, the three groups of top blocks 10 drive the three groups of pins 11 to move upwards, when the three groups of top blocks 10 contact with the three groups of baffles 23 on the upper side, the three groups, then the three sets of electromagnetic generators 15 are closed, then the motors 16 in the three sets of power devices are opened, the rotating shaft 17 drives the screw rod 19 to rotate, the screw rod 19 is screwed with the screw sleeve 20, the screw sleeve 20 drives the sliding plate 5 to move, the two sets of sliding blocks 22 slide on the guide rails 21, the three sets of sliding plates 5 slide on the three sets of sliding sleeves 4, when the three sets of first contact switches 26 contact with the type of sliding sleeves 4, the three sets of first contact switches 26 close the motors 16 in the three sets of power devices, and then the theodolite 1 is moved integrally.

The measuring tool for building detection of the utility model has the advantages that the installation mode, the connection mode or the setting mode are common mechanical modes, and the measuring tool can be implemented as long as the beneficial effects can be achieved; the utility model discloses a theodolite 1, electromagnetic generator 15, motor 16, first contact switch 26 and second contact switch 32 of measuring tool for building detection are purchase on the market, and this industry technical staff only need install and operate according to its subsidiary operating specification can.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A measuring tool for building detection is characterized by comprising a theodolite (1), a platform (2), three groups of first fixing plates (3), three groups of sliding sleeves (4), three groups of sliding plates (5), three groups of fixing blocks (6), three groups of operation boxes (7), three groups of top blocks (10), three groups of contact pins (11), three groups of counterweight magnetic columns (12), six groups of connecting rods (13), six groups of impact blocks (14) and three groups of electromagnetic generators (15), wherein the theodolite (1) is arranged on the platform (2), the three groups of first fixing plates (3) are rotatably arranged at the bottom end of the platform (2), the three groups of sliding sleeves (4) are respectively arranged at the lower side of the three groups of first fixing plates (3), the three groups of sliding plates (5) are respectively connected with the three groups of sliding sleeves (4) in a sliding manner, three groups of power devices are arranged on the three groups of first fixing plates (3), and, three groups of fixed blocks (6) and three groups of operation boxes (7) are respectively arranged at the lower sides of the three groups of sliding plates (5), the top ends of the three groups of fixed blocks (6) are connected with the bottom ends of the three groups of operation boxes (7), the bottom ends of the three groups of operation boxes (7) and the fixed blocks (6) are respectively communicated with each other and provided with through holes, and two groups of through holes are communicated with each other, three groups of operation cavities (8) are arranged in the three groups of operation boxes (7), three groups of working cavities (9) are respectively communicated with the inner sides of the three groups of operation cavities (8), three groups of top blocks (10) are arranged in the three groups of working cavities (9), three groups of contact pins (11) are respectively arranged on the three groups of top blocks (10), the lower sides of the three groups of contact pins (11) are respectively positioned in the through holes of the fixed blocks (6), and the three groups of contact pins (11) are respectively connected with the through holes of, six groups of connecting rods (13) are installed respectively on three groups of counter weight magnetic columns (12), six groups of striking blocks (14) are installed respectively on six groups of connecting rods (13), and six groups of striking blocks (14) are located three groups of kicking blocks (10) upside and downside respectively, three groups of operation boxes (7) top intercommunication are provided with the opening, three groups of electromagnetic generators (15) are installed respectively on three groups of operation chamber (8) in three groups of opening outsides, and three groups of electromagnetic generators (15) output is located three groups of openings.

2. The measuring tool for building detection according to claim 1, wherein the power device comprises a motor (16), a rotating shaft (17), a coupler (18), a screw (19), a threaded sleeve (20), a guide rail (21) and two sets of sliding blocks (22), the motor (16) is installed on the first fixing plate (3), the top end of the rotating shaft (17) is connected with the output end of the motor (16), the rotating shaft (17) is connected with the screw (19) through the coupler (18), the screw (19) is connected with the threaded sleeve (20), the threaded sleeve (20) is installed on the sliding plate (5), the guide rail (21) is installed on the first fixing plate (3), the two sets of sliding blocks (22) are both connected with the guide rail (21) in a sliding manner, and the two sets of sliding blocks (22) are respectively installed on the threaded sleeve (20) and the sliding plate (5).

3. The construction tester according to claim 2, further comprising six sets of baffles (23), wherein the six sets of baffles (23) are respectively installed on the inner walls of the three sets of working chambers (9), and the positions of the six sets of baffles (23) correspond to the positions of the three sets of top blocks (10).

4. The construction tester according to claim 3, further comprising three sets of buffer blocks (24), wherein the three sets of buffer blocks (24) are respectively installed at the lower sides of the three sets of operation chambers (8), and the three sets of buffer blocks (24) respectively correspond to the three sets of counterweight magnetic columns (12) in position.

5. The construction tester according to claim 4, further comprising three sets of second fixing plates (25) and three sets of first contact switches (26), wherein the three sets of second fixing plates (25) are respectively mounted on the lower sides of the three sets of sliding plates (5), the three sets of first contact switches (26) are respectively mounted on the three sets of second fixing plates (25), and the three sets of first contact switches (26) respectively correspond to the three sets of sliding sleeves (4) in position.

6. The construction tester according to claim 5, further comprising three sets of fixing frames (27) and three sets of contact plates (28), wherein the three sets of fixing frames (27) are respectively and uniformly installed on the platform (2), and the three sets of contact plates (28) are respectively installed on the three sets of fixing frames (27).

7. The measuring tool for building detection according to claim 6, further comprising three sets of shields (29), wherein the three sets of shields (29) are respectively mounted on the three sets of first fixing plates (3), and each of the three sets of shields (29) comprises a sliding plate (5), a motor (16), a rotating shaft (17), a coupler (18), a screw (19), a threaded sleeve (20), a guide rail (21) and two sets of sliders (22).

8. The measuring tool for detecting buildings according to claim 7, further comprising three sets of third fixing plates (30), three sets of fourth fixing plates (31), and three sets of second contact switches (32), wherein the three sets of third fixing plates (30) are respectively installed inside the three sets of threaded sleeves (20), the three sets of fourth fixing plates (31) are respectively installed on the inner walls of the three sets of protective covers (29), the three sets of second contact switches (32) are respectively installed on the three sets of fourth fixing plates (31), and the three sets of second contact switches (32) are respectively corresponding to the three sets of third fixing plates (30).

9. The construction tester according to claim 8, further comprising three sets of rollers (33), wherein the three sets of rollers (33) are respectively mounted on the lower sides of the three sets of sliding plates (5).

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