CN219261012U - Tubular pile straightness detection device that hangs down for municipal construction - Google Patents

Abstract

The utility model provides a tubular pile verticality detection device for municipal construction, which comprises a positioning mechanism, a universal seat, a laser emitter, a moving mechanism and a laser target, wherein the positioning mechanism is used for connecting a port of a tubular pile; the universal seat is arranged on the positioning mechanism; the laser transmitter is used for transmitting laser beams and measuring the distance, is arranged on the universal seat, faces the inner cavity of the tubular pile and is positioned on the axis of the tubular pile; the moving mechanism is used for moving along the inner wall of the tubular pile so as to be relatively close to or far away from the positioning mechanism; the laser target is arranged on the moving mechanism, and the target surface of the laser target is opposite to the laser emitter and concentric with the tubular pile. The structure is as above. The laser transmitter keeps vertically downwards under the influence of dead weight, transmits laser to the laser target through the laser transmitter to laser beam contrast tubular pile axis, alright measure tubular pile inclination numerical value, rethread judge laser target position, alright judge the inclination of tubular pile, it still has the advantage that does not receive the wind-force to influence.

Description

Tubular pile straightness detection device that hangs down for municipal construction

Technical Field

The utility model relates to the technical field of engineering detection, in particular to a pipe pile verticality detection device for municipal construction.

Background

The prestressed pipe pile is a foundation assembly of railway bridge engineering, and is mostly a concrete pipe, and after the prestressed pipe pile is installed, the verticality of the prestressed pipe pile is required to be detected so as to ensure the stability of a supporting structure of the prestressed pipe pile. The perpendicularity detection method of the pipe pile is various, at present, the square is generally adopted for detection or plumb detection, one side of the square is attached to the pipe pile, then the included angle between the pipe pile and the straight teeth is measured, or the plumb is adopted to hang down from the pipe pile, then the included angle between the plumb line and the pipe pile is detected, and the gradient of the pipe pile can be measured.

The prior patent of the utility model with the bulletin number of CN215105326U discloses a detection device for the perpendicularity of a pipe pile, which comprises the pipe pile and further comprises a detection device arranged at the upper end and the lower end of the pipe pile, wherein the detection device comprises a first hoop and a second hoop, the first hoop is fixed at the lower end of the pipe pile, a plurality of circular grooves are formed in the side wall of one side of the second hoop, a ball is rotationally arranged in the circular groove, the second hoop is arranged on the pipe pile in a sliding manner through the ball, a pushing device is arranged between the first hoop and the second hoop, a supporting plate is fixed on the side wall of the other side of the second hoop, and an observation device convenient for observing the perpendicularity is arranged on the supporting plate.

According to the technical scheme, the weight is suspended by the string, and then the deviation between the string and the scale mark on the protractor is measured by the protractor, so that the gradient of the pipe pile is known.

However, the detection technical means is to ensure that one end of a string for hanging a weight is tied on the pipe pile and is detected from one side of the pipe pile, but because the inclination direction of the pipe pile is uncontrollable, if the inclination direction of the pipe pile is just opposite to the side where the string is arranged, the specific inclination state of the pipe pile cannot be detected by the technical means; secondly, the section of the pipe pile is circular, four quadrant points are arranged on the pipe pile, if the string is just arranged at any quadrant point and is vertical downwards, the pipe pile is inclined in any quadrant, and the pipe pile is not just inclined to other quadrant points adjacent to the quadrant point at which the string is arranged, so that the inclination state of the pipe pile cannot be accurately measured; moreover, the detection means is easily affected by wind power, and the inclination state of the pipe pile cannot be detected when the string swings.

Disclosure of Invention

In view of the above, the utility model provides a tubular pile verticality detection device for municipal construction, which has high detection accuracy and is not easily influenced by wind power, so as to solve the problems of poor measurement accuracy and easiness in wind power influence of the existing detection device.

The technical scheme of the utility model is realized as follows: the utility model provides a tubular pile verticality detection device for municipal construction, which comprises a positioning mechanism, a universal seat, a laser emitter, a moving mechanism and a laser target, wherein,

the positioning mechanism is used for connecting the port of the tubular pile;

the universal seat is arranged on the positioning mechanism;

the laser transmitter is used for transmitting laser beams and measuring the distance, is arranged on the universal seat, faces the inner cavity of the tubular pile and is positioned on the axis of the tubular pile;

the moving mechanism is used for moving along the inner wall of the tubular pile so as to be relatively close to or far away from the positioning mechanism;

the laser target is arranged on the moving mechanism, and the target surface of the laser target is opposite to the laser emitter and concentric with the tubular pile.

On the basis of the technical proposal, the positioning mechanism preferably comprises a positioning rod, a positioning seat and a sliding seat, wherein,

the four positioning rods are arranged in a cross shape; the positioning seat is arranged among the four positioning rods, one end of each of the four positioning rods is connected with the positioning seat, and the universal seat is connected with the positioning seat;

the sliding seat is arranged on the four positioning rods and is in sliding connection with the positioning rods.

On the basis of the technical scheme, preferably, the positioning mechanism further comprises a locking bolt, the locking bolt is connected with the sliding seat through threads, and the locking bolt penetrates through the sliding seat and selectively abuts against the positioning rod to position the sliding seat.

On the basis of the above technical scheme, preferably, the positioning mechanism further comprises a scale, the scale is arranged on the positioning rod, and the scale is arranged along the sliding direction of the sliding seat.

On the basis of the technical proposal, preferably, the universal seat comprises a ball seat and a universal ball, wherein,

the ball seat is connected with the positioning mechanism;

and the universal ball is rotationally arranged in the ball seat, and the laser transmitter is connected with the universal ball.

On the basis of the above technical solution, it is preferred that the moving mechanism comprises a carrier and a moving wheel set, wherein,

a carrier for carrying the laser target;

the movable wheel sets are arranged at least three, are arranged at the periphery of the carrier in an annular array and are used for contacting the inner wall of the tubular pile.

On the basis of the technical proposal, the moving mechanism preferably further comprises an electric push rod, a guide rod sliding seat and a guide rod, wherein,

the electric push rod is arranged in the carrier, and the movable end of the electric push rod is connected with the movable wheel group;

the guide rod sliding seat is arranged in the carrier;

the guide rod is connected with the guide rod sliding seat in a sliding way, one end of the guide rod is connected with the movable wheel set, and the guide rod is arranged in parallel with the electric push rod.

On the basis of the technical proposal, preferably, the movable wheel group comprises a wheel group bracket and a movable wheel, wherein,

the wheel set bracket is connected with the electric push rod and the guide rod;

the movable wheels are rotatably arranged on the wheel set support, and the two movable wheels are axially arranged along the tubular pile.

On the basis of the technical scheme, the moving wheel is preferably made of rigid materials.

On the basis of the technical proposal, preferably, the moving mechanism also comprises a screw thread column, the laser target comprises a target body and a connecting plate, wherein,

the screw thread column is arranged on the carrier;

the target body is arranged concentrically with the tubular pile;

the connecting plate sets up in the week of target body, and the screw thread post passes the connecting plate and is connected with the nut.

Compared with the prior art, the tubular pile verticality detection device for municipal construction has the following beneficial effects:

(1) The laser emitter is arranged at the pipe orifice by using the positioning mechanism, the moving mechanism is arranged to drive the laser target to move in the pipe pile, and the laser emitter is connected with the positioning mechanism through the universal seat, so that the laser emitter can keep vertical downward under the influence of dead weight, therefore, the laser emitter emits laser to the laser target, two end points of the laser beam are connected into a line, the length of the laser beam is combined, the inclination angle of the pipe pile can be measured by comparing the laser beam with the axis of the pipe pile, and the inclination direction of the pipe pile can be judged by judging the laser targeting position, and meanwhile, the laser is laser detection and is not influenced by wind power;

(2) Because the moving mechanism and the positioning mechanism are arranged separately, the laser target can move freely relative to the laser emitter, so that the device can measure the inclination of the pipe pile with any length;

(3) In the moving mechanism, the moving wheel is made of rigid materials, so that the problem of extrusion deformation does not occur, and the concentricity of the laser target and the tubular pile is guaranteed, and the measuring precision is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a pipe pile verticality detection device for municipal construction according to the utility model;

FIG. 2 is a plan view of the pipe pile verticality detection device for municipal construction according to the utility model;

FIG. 3 is a diagram showing the connection structure of a positioning mechanism and a laser of the pipe pile verticality detection device for municipal construction;

fig. 4 is a front view of a moving mechanism of the pipe pile verticality detection device for municipal construction according to the utility model;

FIG. 5 is an exploded view of a moving mechanism of the pipe pile verticality detection device for municipal construction according to the utility model;

FIG. 6 is a block diagram of the point A of FIG. 5 in accordance with the present utility model;

FIG. 7 is a schematic diagram of a prior art implementation of the detection technique;

FIG. 8 is a second schematic diagram of a prior art implementation of the detection technique;

fig. 9 is a diagram showing an application state of the pipe pile verticality detection device for municipal construction according to the utility model;

fig. 10 is a second application state diagram of the pipe pile verticality detection device for municipal construction according to the utility model;

in the figure: the positioning mechanism 1, the positioning rod 11, the positioning seat 12, the sliding seat 13, the locking bolt 14, the scale 15, the universal seat 2, the ball seat 21, the universal ball 22, the laser emitter 3, the moving mechanism 4, the carrier 41, the upper shell 411, the lower shell 412, the moving wheel set 42, the bracket 421, the moving wheel 422, the motor 423, the electric push rod 43, the guide rod sliding seat 44, the guide rod 45, the threaded column 46, the laser target 5, the target body 51, the connecting plate 52, the pipe pile S, the string 100, the plumb 200 and the protractor 300;

the direction is: a. b, c, d;

quadrant points: x is a group;

quadrant: A. b, C, D.

Detailed Description

The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

As shown in fig. 1 to 6, the pipe pile verticality detection device for municipal construction according to the present utility model comprises: the positioning mechanism 1, the universal seat 2, the laser emitter 3, the moving mechanism 4 and the laser target 5 are used for measuring the perpendicularity of the pipe pile S, namely measuring the inclination angle of the pipe pile S relative to the horizontal plane.

Referring to fig. 7, in the prior art, a plumb 200 is connected to a pipe pile S through a string 100, and a protractor 300 is provided, so that when the measurement is performed, the zero line of the protractor 300 is ensured to be parallel to the length direction of the pipe pile S, and if the pipe pile has an inclination angle, the string and the zero line of the protractor 300 form an included angle, so that the inclination state of the pipe pile S can be measured, but the measurement mode is not accurate enough.

As shown in fig. 7, which is divided into four directions a, b, c, d, the string 100, the plumb 200, and the protractor 300 are laid on the pipe pile S by the above-mentioned means, but only the inclination of the pipe pile S in the ab direction can be measured, and the inclination of the pipe pile S in the cd direction cannot be measured, because the protractor 300 can only measure the angle of two lines in a plane.

Referring to fig. 8, which illustrates the inclined state of the pipe pile S from the top view, the cross section of the pipe pile S has four quadrant points X, and four directions of a, B, C, D define quadrant a, quadrant B, quadrant C and quadrant D, and it can be seen from the figure that the pipe pile S is inclined to quadrant C, that is, the included angle position of two quadrant points X, and referring to the position of the plumb 200, it cannot measure the inclination angle of the pipe pile S in the cd direction when measuring, of course, one protractor 300 may be placed again and perpendicular to the former protractor 300, and the inclination angle of the pipe pile S in the cd direction may be measured using the second protractor 300, but the operation is too complicated and inaccurate. Meanwhile, if the pipe pile S is inclined to the quadrant a, the second protractor 300 placed is not effective because the string 100 and the plumb 200 will approach the pipe pile S unless the string 100 and the plumb 200 are set in the quadrant a for measurement, but the slight inclination of the pipe pile is invisible to naked eyes, and the measurement position cannot be predicted, so that the installation positions of the string 100 and the plumb 200 can only be tried in sequence, the measurement is time-consuming and laborious, and the string is easy to shake due to the influence of wind force, resulting in measurement misalignment.

In order to solve the above measurement problem, as shown in fig. 1 to 6, in the present verticality detection apparatus, a positioning mechanism 1 is used for connecting ports of a pipe pile S; the universal seat 2 is arranged on the positioning mechanism 1; the laser emitter 3 is used for emitting laser beams and measuring the distance, is arranged on the universal seat 2, and the laser emitter 3 faces the inner cavity of the pipe pile S and is positioned on the axis of the pipe pile S; a moving mechanism 4 for moving along the inner wall of the pipe pile S to relatively approach or separate from the positioning mechanism 1; the laser target 5 is arranged on the moving mechanism 4, and the target surface of the laser target 5 is opposite to the laser emitter 3 and concentric with the pipe pile S.

The positioning mechanism 1 is configured as described above, and is used to mount the laser emitter 3 on the pipe orifice of the pipe pile S and position the laser emitter 3 at the center of the pipe orifice, that is, the laser emitter 3 is located on the axis of the pipe pile S.

The universal seat 2 is used for adjusting the position of the laser transmitter 3 so that the laser transmitter 3 is kept vertical to the ground under the influence of dead weight.

Specifically, the universal seat 2 comprises a ball seat 21 and a universal ball 22, wherein the ball seat 21 is connected with the positioning mechanism 1; the universal ball 22 is rotatably arranged in the ball seat 21, and the laser transmitter 3 is connected with the universal ball 22. With the above structure, the laser transmitter 3 can rotate the universal ball 22 in the ball seat 21 by means of self weight, thereby ensuring that the laser transmitter 3 is vertical to the ground.

Referring to fig. 9 and 10, the moving mechanism 4 is used for driving the laser target 5 to move, the moving mechanism 4 can drive the laser target 5 to move on the inner wall of the pipe pile S, so as to be far away from the laser emitter 3, after the laser emitter 3 emits laser to hit the laser target 5, the laser beam is identical to the string 100 in the existing detecting means, if the pipe pile S is not inclined, the laser beam coincides with the axis of the pipe pile S, if the pipe pile S is inclined, the specific inclination angle of the pipe pile S can be judged by judging the included angle between the laser beam and the axis of the pipe pile S, and the inclination direction of the pipe pile S can be measured by judging the targeting position of the laser beam.

The laser beam is obtained by connecting two points in a line from the position of the laser emitter 3 and the position of the target 5, and the specific state of the laser beam can be obtained by judging the distance between the laser emitter 3 and the target 5 and combining the distance value with the position of the laser emitter 3 and the middle target position of the target 5.

The position of the laser emitter 3 is known, the laser emitter is positioned at the pipe orifice of the pipe pile S, the middle target position can be fed back by the laser target 5, at the moment, the laser emission time of the laser emitter 3 is differentiated from the middle target time, and the specific length of the laser beam can be obtained by combining the time difference with the laser beam emission speed.

As for the learning of the S axis of the pipe pile, by arranging motion sensors such as a triaxial gyroscope, a triaxial accelerometer and a triaxial electronic compass on the laser target 5, the posture of the laser target 5 is learned, and a virtual axis perpendicular to the laser target 5 is simulated. Of course, the motion sensor may also be provided on the positioning mechanism 1 or the moving mechanism 4.

Because the laser target 5 is in the tubular pile S, the laser target 5 is an electronic target because the laser beam target shooting position cannot be judged manually, the laser target is formed by a laser receiver, the laser receiver transmits the laser target shooting position to a computer through a wireless signal, and meanwhile, the middle target time is transmitted.

In order to improve the measurement accuracy of the device, the laser lens of the laser transmitter 3 should be as close to the surface of the universal ball 22 as possible, and meanwhile, it should be ensured that the universal ball 22 can rotate under the dead weight, which is beneficial to accurately measuring the emission end point of the laser beam.

Preferably, the laser target 5 is a target with a regular shape, which is beneficial to a round shape or a square shape, so that quadrant regions are conveniently divided, and the inclination direction of the pipe pile S is conveniently judged.

The device is not affected by wind force because the perpendicularity is measured by laser, and the laser emitter 3 and the laser target 5 are separated, so that the device can be used for measuring the perpendicularity of the pipe pile S with any length.

Specifically, the positioning mechanism 1 in the device comprises positioning rods 11, positioning seats 12 and sliding seats 13, wherein four positioning rods 11 are arranged, and the four positioning rods 11 are arranged in a cross shape; the positioning seat 12 is arranged among the four positioning rods 11, one end of each of the four positioning rods 11 is connected with the positioning seat 12, and the universal seat 2 is connected with the positioning seat 12; the sliding seat 13 is arranged on one of the four positioning rods 11, and the sliding seat 13 is in sliding connection with the positioning rods 11. According to the structure, the four sliding seats 13 are propped against the outer wall of the pipe pile S, the distances between the four sliding seats 13 and the positioning seat 12 are equal, the laser emitter 3 can be positioned on the axis of the pipe pile S, and once the pipe pile S is inclined, the laser beam can be conveniently compared with the axis of the pipe pile S to acquire the inclination angle of the pipe pile S.

In order to avoid the offset in the measurement process, the positioning mechanism 1 further comprises a locking bolt 14, the locking bolt 14 is in threaded connection with the sliding seat 13, and the locking bolt 14 penetrates through the sliding seat 13 and selectively abuts against the positioning rod 11 to position the sliding seat 13. After the sliding seat 13 is adjusted in place, the locking bolt 14 is locked to position the sliding seat 13 and the positioning rod 11 relatively, so that the positioning mechanism 1 can accurately position the laser emitter 3.

Further, the positioning mechanism 1 further includes a scale 15, the scale 15 is disposed on the positioning rod 11, and the scale 15 is disposed along the sliding direction of the sliding seat 13. The scale 15 is used for controlling the positions of the four sliding seats 13 relative to the positioning seat 12 so as to ensure that the distances between the four sliding seats 13 and the positioning seat 12 are equal, and the laser transmitter 3 is positioned on the axis of the tubular pile S. In some embodiments, the scale 15 may not be provided, but the displacement distance of the four sliding seats 13 may be controlled by an automated linear displacement mechanism, for example, the displacement stroke of the sliding seats 13 may be controlled by using an electric push rod.

The tubular pile S is different in length, in order to guarantee the highest measurement accuracy, the laser emitter 3 and the laser target 5 are preferably located at two ends of the tubular pile S, so that when the tubular pile S is inclined, the target hitting position of the laser beam is farther from the center of the laser target 5, and the offset direction of the tubular pile S is easier to know.

Specifically, the moving mechanism 4 for the displacement of the laser target 5 includes a carrier 41 and a moving wheel set 42, where the carrier 41 is used to carry the laser target 5; the moving wheel sets 42 are at least three, and the three moving wheel sets 42 are arranged on the periphery of the carrier 41 in an annular array and are used for contacting the inner wall of the pipe pile S. In the above structure, the three moving wheel sets 42 can stably support the carrier 41 on the inner wall of the pipe pile S, so that the carrier can drive the laser target 5 to move along the inner wall of the pipe pile S, thereby adjusting the distance between the laser emitter 3 and the laser target 5, and facilitating the measurement of the pipe piles S with different lengths.

The moving mechanism 4 moves along the axial direction of the pipe pile S through the moving wheel 422, and does not rotate in the circumferential direction, so that the moving mechanism can be used as a positioning reference, so that the problem that the inclination direction of the pipe pile S cannot be judged due to axial deviation when the moving mechanism 4 moves can be avoided, and the problem that the moving mechanism 4 and the laser target 5 deviate in the circumferential direction does not need to be worried if the detecting machine can synchronously know the posture of the moving mechanism 4.

Because the tubular pile S of different models also has different external diameter and internal diameter, positioning mechanism 1 accessible adjustment sliding seat 13 adapts to the external diameter of different tubular piles S, consequently, still need adjust mobile mechanism 4, makes its internal diameter that adapts to different models tubular pile S to improve the commonality of this device.

Specifically, the moving mechanism 4 further includes an electric push rod 43, a guide rod sliding seat 44 and a guide rod 45, wherein the electric push rod 43 is disposed in the carrier 41, and a movable end of the electric push rod 43 is connected with the moving wheel set 42; a guide bar slider 44 provided in the carrier 41; the guide rod 45 is slidably connected with the guide rod sliding seat 44, one end of the guide rod 45 is connected with the moving wheel set 42, and the guide rod 45 is arranged in parallel with the electric push rod 43. According to the structure, the distance between the moving wheel set 42 and the carrier 41 is adjusted by the electric push rod 43, so that the tubular piles S with different inner diameters can be adapted, wherein the guide rod sliding seat 44 and the guide rod 45 are used for moving and guiding the moving wheel set 42, so that the installation and moving stability of the moving wheel set 42 are improved.

The carrier 41 includes an upper case 411 and a lower case 412, the upper case 411 and the lower case 412 are combined, and are used for installing the electric push rod 43, the guide rod sliding seat 44 and the guide rod 45, and are also used for accommodating electrical components such as a processor, a battery and the like, so as to control the operation of driving the electric push rod 43 and the moving wheel set 42, and the laser transmitter 3 and the laser target 5 formed by a laser receiver are in the prior art.

The motion sensors such as a triaxial gyroscope, a triaxial accelerometer and a triaxial electronic compass are used for obtaining the component gesture simulation virtual axis, so that the method is also the prior art and is widely applied to aerospace and some entertainment facilities. For example, the components with the functions can be built by using the IMU module inertial measurement unit, the triaxial magnetometer module, the control chip, the serial port switching module, the power supply, the PC end and other devices, so that detailed description is omitted.

The moving wheel group 42 of the moving mechanism 4 in the device comprises a wheel group bracket 421 and a moving wheel 422, wherein the wheel group bracket 421 is connected with the electric push rod 43 and the guide rod 45; the moving wheels 422 are rotatably arranged on the wheel group support 421, and the two moving wheels 422 are arranged along the axial direction of the pipe pile S. In order to ensure the stability of the movement of the moving mechanism, two moving wheels 422 are disposed on each moving wheel set 42, so that the friction between the moving wheels 422 and the inside of the pipe pile S can be improved, which is beneficial to improving the stability of the movement of the moving mechanism 4 along the inner wall of the pipe pile S. Further, a motor 423 may be disposed on the wheel set support 421 for driving the moving wheel 422 to move, or a self-powered moving wheel structure may be employed.

Preferably, the moving wheel 422 is a rigid material. This can guarantee that the moving wheel 422 is propped against the inner wall of the tubular pile S and is not deformed, so that the laser target 5 is prevented from deviating, and the detection precision is guaranteed.

Further, the moving mechanism 4 further comprises a threaded column 46, and the laser target 5 comprises a target body 51 and a connecting plate 52, wherein the threaded column 46 is arranged on the carrier 41; the target body 51 is disposed concentrically with the pipe pile S, the connection plate 52 is disposed on the periphery of the target body 51, and the screw column 46 passes through the connection plate 52 and is connected with a nut. With the above structure, the laser target 5 can be disassembled and assembled by disassembling the bolts, and when the device is not used, the laser target 5 can be disassembled from the moving mechanism 4, so that the moving mechanism 4 is prevented from being damaged.

The specific implementation steps are as follows:

firstly, placing a moving mechanism 4 and a laser target 5 into a tubular pile S, and driving the laser target 5 to move along the inner wall of the tubular pile S by the moving mechanism 4 so as to be far away from an opening of the tubular pile S as far as possible;

then, the laser emitter 3 is arranged at the opening of the pipe pile S through the positioning mechanism 1, and the laser emitter 3 emits laser beams;

after the laser beam hits the laser target 5, judging the included angle between the laser beam and the axis of the pipe pile S so as to acquire the inclination angle of the pipe pile S; because the laser target 5 is concentric with the tubular pile S, the relative position of the target center and the laser beam hitting the laser target 5 is judged at the moment, so that the inclination direction of the tubular pile S can be known, and the verticality measurement is completed;

according to the measurement result, the state of the pipe pile S is synchronously adjusted until the laser beam targets the central position of the laser target 5, and then the pipe pile S is completely vertical to the ground.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. Tubular pile straightness detection device that hangs down for municipal construction, its characterized in that: comprises a positioning mechanism (1), a universal seat (2), a laser emitter (3), a moving mechanism (4) and a laser target (5), wherein,

the positioning mechanism (1) is used for connecting the port of the tubular pile (S);

the universal seat (2) is arranged on the positioning mechanism (1);

the laser transmitter (3) is used for transmitting laser beams and measuring distances, is arranged on the universal seat (2), and the laser transmitter (3) faces the inner cavity of the tubular pile (S) and is positioned on the axis of the tubular pile (S);

the moving mechanism (4) is used for moving along the inner wall of the tubular pile (S) to be relatively close to or far away from the positioning mechanism (1);

the laser target (5) is arranged on the moving mechanism (4), and the target surface of the laser target (5) is opposite to the laser emitter (3) and concentric with the tubular pile (S).

2. The apparatus for detecting perpendicularity of a pipe pile for municipal construction according to claim 1, wherein: the positioning mechanism (1) comprises a positioning rod (11), a positioning seat (12) and a sliding seat (13), wherein,

the positioning rods (11) are arranged in four, and the four positioning rods (11) are arranged in a cross shape;

the positioning seats (12) are arranged among the four positioning rods (11), one end of each of the four positioning rods (11) is connected with the positioning seat (12), and the universal seat (2) is connected with the positioning seat (12);

the sliding seats (13) are respectively arranged on the four positioning rods (11), and the sliding seats (13) are in sliding connection with the positioning rods (11).

3. The apparatus for detecting perpendicularity of a pipe pile for municipal construction according to claim 2, wherein: the positioning mechanism (1) further comprises a locking bolt (14), the locking bolt (14) is in threaded connection with the sliding seat (13), and the locking bolt (14) penetrates through the sliding seat (13) and selectively abuts against the positioning rod (11) to position the sliding seat (13).

4. The apparatus for detecting perpendicularity of a pipe pile for municipal construction according to claim 2, wherein: the positioning mechanism (1) further comprises a scale (15), the scale (15) is arranged on the positioning rod (11), and the scale (15) is arranged along the sliding direction of the sliding seat (13).

5. The apparatus for detecting perpendicularity of a pipe pile for municipal construction according to claim 1, wherein: the universal seat (2) comprises a ball seat (21) and a universal ball (22), wherein,

the ball seat (21) is connected with the positioning mechanism (1);

the universal ball (22) is rotatably arranged in the ball seat (21), and the laser transmitter (3) is connected with the universal ball (22).

6. The apparatus for detecting perpendicularity of a pipe pile for municipal construction according to claim 1, wherein: the moving mechanism (4) comprises a carrier (41) and a moving wheel set (42), wherein,

-the carrier (41) for carrying the laser target (5);

the movable wheel sets (42) are at least three, and the three movable wheel sets (42) are arranged on the periphery of the carrier (41) in an annular array and are used for contacting the inner wall of the tubular pile (S).

7. The device for detecting perpendicularity of a pipe pile for municipal construction according to claim 6, wherein: the moving mechanism (4) also comprises an electric push rod (43), a guide rod sliding seat (44) and a guide rod (45), wherein,

the electric push rod (43) is arranged in the carrier (41), and the movable end of the electric push rod (43) is connected with the movable wheel group (42);

the guide rod sliding seat (44) is arranged in the carrier (41);

the guide rod (45) is in sliding connection with the guide rod sliding seat (44), one end of the guide rod (45) is connected with the moving wheel set (42), and the guide rod (45) is arranged in parallel with the electric push rod (43).

8. The apparatus for detecting perpendicularity of a pipe pile for municipal construction according to claim 7, wherein: the moving wheel group (42) comprises a wheel group bracket (421) and a moving wheel (422), wherein,

the wheel group bracket (421) is connected with the electric push rod (43) and the guide rod (45);

the movable wheels (422) are rotatably arranged on the wheel set support (421), and the two movable wheels (422) are arranged along the axial direction of the tubular pile (S).

9. The apparatus for detecting perpendicularity of a pipe pile for municipal construction according to claim 8, wherein: the moving wheel (422) is made of rigid materials.

10. The device for detecting perpendicularity of a pipe pile for municipal construction according to claim 6, wherein: the moving mechanism (4) further comprises a threaded column (46), the laser target (5) comprises a target body (51) and a connecting plate (52), wherein,

the threaded column (46) is arranged on the carrier (41);

the target body (51) is concentrically arranged with the tubular pile (S);

the connecting plate (52) is arranged on the periphery of the target body (51), and the threaded column (46) penetrates through the connecting plate (52) and is connected with a nut.

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