A construction pit surveying device

Abstract

The utility model discloses a construction foundation pit surveying and mapping device, including a fixed seat, a mounting seat and an infrared rangefinder, a base is arranged above the fixed seat, a movable seat is slidably arranged on the top of the base, a cross bar is fixedly arranged on the top of one side of the movable seat in the horizontal direction, a first motor is fixedly arranged on the side of the movable seat away from the cross bar, the mounting seat is rotated vertically and inserted at one end of the top of the cross bar, the mounting seat is connected to the first motor through a transmission mechanism, a reflective prism is rotatably arranged on the top of the mounting seat, the rear side of the reflective prism is connected to the mounting seat through a pitch adjustment mechanism, and the infrared rangefinder is fixedly arranged at the bottom of the mounting seat. Through the above arrangement, the plane coordinates of the point to be measured at the bottom of the foundation pit can be moved up to the top of the foundation pit, avoiding the situation where the top of the foundation pit blocks the total station and the reflective prism, overcoming the defects of the total station's limited pitch angle and the height of the reflective prism, and there is no need to set up the total station multiple times at multiple locations, thereby improving the surveying and mapping efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit surveying and mapping, and in particular relates to a construction foundation pit surveying and mapping device. Background Art

[0002] Pit surveying is the first step in pit engineering. It is necessary to accurately measure the location, shape and size of the pit according to the design requirements. The total station is generally used for on-site measurement. The total station is set up at a specific location, and reflective prisms are set up at the corners of the top and bottom edges of the pit in turn. The coordinates of the pit edge are obtained to obtain the three-dimensional shape of the pit to ensure that the geometric shape of the pit meets the design requirements.

[0003] A Chinese patent with publication number CN217580333U discloses a wide-angle, multi-directional, high-precision surveying and mapping device for deep foundation pits. The solution includes a base, a wire drum, a steel wire and an octahedral wide-angle prism. A movable seat is movably arranged above the base, a cross bar is fixedly arranged on the top of the movable seat, and a pulley is rotatably installed at one end of the cross bar. The above solution winds the steel wire around the wire drum, and suspends an octahedral wide-angle prism at one end of the steel wire and winds it around the pulley. The octahedral wide-angle prism is horizontally moved to a predetermined position by sliding the movable seat, and the octahedral wide-angle prism is vertically moved to a predetermined position by rotating the wire drum to complete the foundation pit surveying and mapping work.

[0004] During the actual surveying process, due to the limitations of the total station's pitch angle and the height of the reflecting prism, the total station is easily blocked by the top of the foundation pit and cannot aim at the reflecting prism set up on the edge of the bottom of the foundation pit adjacent to the total station. Surveying personnel are required to set up the total station at multiple locations multiple times to conduct a comprehensive survey of the foundation pit. The operating steps of this process are relatively cumbersome and the surveying efficiency is low. Utility Model Content

[0005] The utility model aims to provide a construction foundation pit surveying device to solve the problem that the total station needs to be set up at multiple positions in the above-mentioned solution.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A construction pit surveying device comprises a fixed seat, a mounting seat and an infrared rangefinder, wherein a base is arranged above the fixed seat, a movable seat is slidably arranged on the top of the base, a cross bar is fixedly arranged on the top of one side of the movable seat in the horizontal direction, a first motor is fixedly arranged on the side of the movable seat away from the cross bar, the mounting seat is rotatably inserted at one end of the top of the cross bar along the vertical direction, the mounting seat is connected to the first motor through a transmission mechanism, a reflecting prism is rotatably arranged on the top of the mounting seat, the rear side of the reflecting prism is connected to the mounting seat through a pitch adjustment mechanism, and the infrared rangefinder is fixedly arranged on the bottom of the mounting seat.

[0008] The principle and effect of this technical solution:

[0009] Place the fixed seat on the edge of the soil foundation at the top of the foundation pit, slide the movable seat to move the mounting seat away from the base, start the infrared rangefinder to project infrared rays to the bottom of the foundation pit, and when the infrared rays irradiate the corner of the bottom edge of the foundation pit, stop sliding the movable seat, and drive the mounting seat to rotate through the transmission mechanism to make the reflecting prism face the total station set up at a specific position, and then drive the pitch adjustment mechanism to drive the reflecting prism to rotate, and further make it face the total station. The plane coordinates of the surveying point can be obtained by cooperating with the total station, and the three-dimensional coordinates of the surveying point can be calculated by starting the infrared rangefinder to measure the distance to the bottom of the foundation pit.

[0010] Through the above settings, the plane coordinates of the points to be measured at the bottom of the foundation pit can be moved to the top of the foundation pit, avoiding the situation where the top of the foundation pit blocks the total station and the reflecting prism, overcoming the defects of the limited pitch angle of the total station and the height of the reflecting prism. There is no need to set up the total station multiple times at multiple locations, which simplifies the operation steps and improves the surveying efficiency.

[0011] In the utility model, support plates are fixedly provided vertically at the left and right ends of the top of the base, and a first threaded rod is rotatably provided on the two support plates. A second motor is fixedly provided on the outer side of one of the support plates, and the first threaded rod is transmission-connected to the output shaft of the second motor. The movable seat is fitted and sleeved on the first threaded rod, and a notch is provided on the top of the other support plate, and protrusions are fixedly provided on the front and rear side walls of the notch, and a sliding groove cooperating with the protrusion is provided on the side wall of the cross bar, and the bottom of the cross bar is slidably abutted against the bottom of the notch, and the protrusion is slidably embedded in the sliding groove.

[0012] The principle and effect of this technical solution:

[0013] Because the bottom of the cross bar slides against the bottom of the notch, when the second motor drives the first threaded rod to rotate, the support plate limits the rotation of the cross bar and the movable seat, so that the movable seat moves away from the second motor as the first threaded rod rotates, and pushes the mounting seat away from the base through the cross bar.

[0014] Through the above arrangement, the purpose of making the mounting seat move laterally relative to the base is achieved.

[0015] In the utility model, the transmission mechanism includes a transmission shaft, a first bevel gear and a second bevel gear. The transmission shaft is inserted into the cross bar for horizontal rotation, and one end of the transmission shaft is transmission-connected to the output shaft of the first motor. The first bevel gear is fixedly sleeved on the other end of the transmission shaft, and the second bevel gear is fixedly sleeved on the mounting seat, and the first bevel gear is meshed with the second bevel gear.

[0016] The principle and effect of this technical solution:

[0017] The first motor is started to drive the transmission shaft to rotate, and the mounting seat is driven to rotate through the meshing of the first bevel gear and the second bevel gear.

[0018] Through the above arrangement, the purpose of rotating the mounting seat so that the reflecting prism faces the total station set up at a specific position is achieved.

[0019] In the utility model, the pitch adjustment mechanism includes a third motor, a second threaded rod, a slider and a connecting rod. The third motor is fixedly arranged on the side wall of the mounting seat. A groove is provided on the top of the mounting seat in a transverse direction. The second threaded rod is rotatably arranged in the groove, and one end of the second threaded rod is transmission-connected to the output shaft of the third motor. The slider is fitted on the second threaded rod, and the bottom of the slider is slidably abutted against the bottom of the groove. The two ends of the connecting rod are respectively rotationally connected to the rear side wall of the reflecting prism and the top of the slider.

[0020] The principle and effect of this technical solution:

[0021] Because the bottom of the slider slides against the bottom of the groove, when the third motor drives the second threaded rod to rotate, the groove limits the slider from rotating, so that the slider moves with the rotation of the second threaded rod and drives the reflection prism to rotate through the connecting rod.

[0022] Through the above arrangement, the purpose of driving the reflecting prism to rotate so as to face the total station is achieved.

[0023] In the utility model, the fixing seat is connected to the base through a leveling mechanism, and a leveler is fixedly arranged on the top of the crossbar.

[0024] In the utility model, the leveler is fixedly arranged on one side of the top of the cross bar close to the mounting seat, a first mirror body is fixedly arranged above the leveler, and a second mirror body is fixedly arranged on one end of the top of the cross bar away from the mounting seat, the first mirror body is parallel to the second mirror body, and both the first mirror body and the second mirror body are inclined at 45 degrees to the top of the cross bar.

[0025] The principle and effect of this technical solution:

[0026] After the mounting base is moved to an appropriate position, the mounting base is adjusted to a horizontal state by observing the level adjustment mechanism reflected by the second mirror body, thereby ensuring that the line connecting the measured point at the bottom of the foundation pit and the mounting base is perpendicular to the horizontal plane, thereby improving the accuracy of the surveying and mapping results of the utility model.

[0027] In the utility model, drill rods are vertically slidably penetrated at the four corners of the top of the fixing seat.

[0028] The principle and effect of this technical solution:

[0029] After the fixing seat is placed on the soil foundation surface near the top of the foundation pit, the drill rod is passed through the fixing seat and inserted into the soil foundation.

[0030] Through the above arrangement, the fixing seat can be stably placed on the soil foundation surface, thereby preventing the utility model from tipping over or overturning during the process of moving the mounting seat, thereby improving the practicality of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is the axonometric drawing of the overall structure of the utility model;

[0032] Figure 2 This is an exploded view of some parts of the utility model;

[0033] Figure 3 This is a rear axonometric sectional view of the utility model;

[0034] Figure 4 for Figure 3 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0036] The figure marks in the drawings of the specification include: 10, fixed seat; 11, drill rod; 20, base; 21, support plate; 211, notch; 212, bump; 22, second motor; 23, first threaded rod; 30, movable seat; 31, cross bar; 311, slide groove; 312, leveler; 313, first mirror body; 314, second mirror body; 32, first motor; 40, mounting seat; 41, reflecting prism; 42, groove; 51, transmission shaft; 52, first bevel gear; 53, second bevel gear; 61, third motor; 62, second threaded rod; 63, slider; 64, connecting rod; 70, infrared rangefinder; 80, leveling mechanism.

[0037] Example:

[0038] As attached Figure 1-4 As shown, the utility model discloses a construction foundation pit surveying device, including a fixed seat 10, a mounting seat 40 and an infrared rangefinder 70, a base 20 is arranged above the fixed seat 10, a movable seat 30 is slidably arranged on the top of the base 20, a cross bar 31 is fixedly arranged on the top of one side of the movable seat 30 along the horizontal direction, a first motor 32 is fixedly arranged on the side of the movable seat 30 away from the cross bar 31, the mounting seat 40 is vertically rotatable and inserted into one end of the top of the cross bar 31, the mounting seat 40 is connected to the first motor 32 through a transmission mechanism, a reflecting prism 41 is rotatably arranged on the top of the mounting seat 40, and the rear side of the reflecting prism 41 is connected to the mounting seat 40 through a pitch adjustment mechanism, and the infrared rangefinder 70 is fixedly arranged at the bottom of the mounting seat 40.

[0039] In this embodiment, support plates 21 are fixedly provided vertically at the left and right ends of the top of the base 20, and a first threaded rod 23 is rotatably provided on the two support plates 21. A second motor 22 is fixedly provided on the outer side of one of the support plates 21, and the first threaded rod 23 is transmission-connected with the output shaft of the second motor 22. The movable seat 30 is cooperatively sleeved on the first threaded rod 23, and a notch 211 is provided on the top of the other support plate 21, and a protrusion 212 is fixedly provided on the front and rear side walls of the notch 211, and a sliding groove 311 cooperating with the protrusion 212 is provided on the side wall of the cross bar 31, and the bottom of the cross bar 31 is slidably abutted against the bottom of the notch 211, and the protrusion 212 is slidably embedded in the sliding groove 311.

[0040] In this embodiment, the transmission mechanism includes a transmission shaft 51, a first bevel gear 52 and a second bevel gear 53. The transmission shaft 51 is inserted into the cross bar 31 for rotation along the lateral direction, and one end of the transmission shaft 51 is transmission-connected to the output shaft of the first motor 32. The first bevel gear 52 is fixedly sleeved on the other end of the transmission shaft 51, and the second bevel gear 53 is fixedly sleeved on the mounting seat 40, and the first bevel gear 52 is meshed with the second bevel gear 53.

[0041] In this embodiment, the pitch adjustment mechanism includes a third motor 61, a second threaded rod 62, a slider 63 and a connecting rod 64. The third motor 61 is fixedly arranged on the side wall of the mounting seat 40. A groove 42 is recessed in the top of the mounting seat 40 along the horizontal direction. The second threaded rod 62 is rotatably arranged in the groove 42, and one end of the second threaded rod 62 is transmission-connected to the output shaft of the third motor 61. The slider 63 is cooperatively sleeved on the second threaded rod 62, and the bottom of the slider 63 is slidably abutted against the bottom of the groove 42. The two ends of the connecting rod 64 are rotationally connected to the rear side wall of the reflecting prism 41 and the top of the slider 63 respectively.

[0042] In this embodiment, the fixing seat 10 is connected to the base 20 via a leveling mechanism 80 , and a leveler 312 is fixedly disposed on the top of the crossbar 31 .

[0043] In this embodiment, the leveler 312 is fixedly arranged on the top of the cross bar 31 close to the mounting seat 40, a first mirror body 313 is fixedly arranged above the leveler 312, and a second mirror body 314 is fixedly arranged on the top of the cross bar 31 away from the mounting seat 40. The first mirror body 313 is parallel to the second mirror body 314, and both the first mirror body 313 and the second mirror body 314 are inclined at 45 degrees to the top of the cross bar 31.

[0044] In this embodiment, drill rods 11 are vertically slidably penetrated through the four corners of the top of the fixing seat 10 .

[0045] The specific implementation process is as follows:

[0046] Place the fixed seat 10 on the edge of the soil foundation at the top of the foundation pit, slide the movable seat 30 to move the mounting seat 40 away from the base 20, start the infrared rangefinder 70 to project infrared rays to the bottom of the foundation pit, and when the infrared rays irradiate the corner of the bottom edge of the foundation pit, stop sliding the movable seat 30, drive the mounting seat 40 to rotate through the transmission mechanism, so that the reflecting prism 41 faces the total station set up at a specific position, and then drive the pitch adjustment mechanism to drive the reflecting prism 41 to rotate, and further make it face the total station. The plane coordinates of the surveying point can be obtained by cooperating with the total station, and the three-dimensional coordinates of the surveying point can be calculated by starting the infrared rangefinder 70 to measure the distance to the bottom of the foundation pit.

[0047] Because the bottom of the cross bar 31 slides and abuts against the bottom of the notch 211, when the second motor 22 drives the first threaded rod 23 to rotate, the support plate 21 limits the rotation of the cross bar 31 and the movable seat 30, so that the movable seat 30 moves in the direction away from the second motor 22 as the first threaded rod 23 rotates, and pushes the mounting seat 40 away from the base 20 through the cross bar 31.

[0048] The first motor 32 is started to drive the transmission shaft 51 to rotate, and the first bevel gear 52 and the second bevel gear 53 are meshed to drive the mounting seat 40 to rotate.

[0049] Because the bottom of the slider 63 slides against the bottom of the groove 42 , when the third motor 61 drives the second threaded rod 62 to rotate, the groove 42 limits the rotation of the slider 63 , so that the slider 63 moves with the rotation of the second threaded rod 62 and pushes the reflection prism 41 to rotate through the connecting rod 64 .

[0050] After the mounting base 40 is moved to an appropriate position, the leveling mechanism 80 is adjusted by observing the leveler 312 reflected by the second mirror body 314, and the mounting base 40 is adjusted to a horizontal state, thereby ensuring that the line connecting the test point at the bottom of the foundation pit and the mounting base 40 is perpendicular to the horizontal plane.

[0051] After the fixing seat 10 is placed on the soil foundation surface near the top of the foundation pit, the drill rod 11 is passed through the fixing seat 10 and inserted into the soil foundation.

[0052] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A construction pit surveying device, characterized in that: include: A fixed seat, wherein a base is arranged above the fixed seat, a movable seat is slidably arranged on the top of the base, a cross bar is fixedly arranged on the top of one side of the movable seat in the transverse direction, and a first motor is fixedly arranged on the side of the movable seat away from the cross bar; A mounting seat, the mounting seat is inserted into one end of the top of the crossbar along the vertical rotation, the mounting seat is connected to the first motor through a transmission mechanism, a reflective prism is rotatably arranged on the top of the mounting seat, and the rear side of the reflective prism is connected to the mounting seat through a pitch adjustment mechanism; An infrared rangefinder is fixedly arranged at the bottom of the mounting base.

2. The construction pit surveying device according to claim 1, characterized in that: The left and right ends of the top of the base are respectively fixed with support plates along the vertical direction, and the first threaded rod is rotatably penetrated through the two support plates, a second motor is fixedly arranged on the outer side of one of the support plates, the first threaded rod is transmission connected with the output shaft of the second motor, the movable seat is fitted and sleeved on the first threaded rod, a notch is provided on the top of the other support plate, protrusions are fixedly provided on the front and rear side walls of the notch, a sliding groove cooperating with the protrusion is provided on the side wall of the cross bar, the bottom of the cross bar is slidably abutted against the bottom of the notch, and the protrusion is slidably embedded in the sliding groove.

3. The construction pit surveying device according to claim 1, characterized in that: The transmission mechanism includes a transmission shaft, a first bevel gear and a second bevel gear. The transmission shaft is inserted into the cross bar for horizontal rotation, and one end of the transmission shaft is transmission-connected to the output shaft of the first motor. The first bevel gear is fixedly sleeved on the other end of the transmission shaft, and the second bevel gear is fixedly sleeved on the mounting seat. The first bevel gear is meshed with the second bevel gear.

4. The construction pit surveying device according to claim 1, characterized in that: The pitch adjustment mechanism includes a third motor, a second threaded rod, a slider and a connecting rod. The third motor is fixedly arranged on the side wall of the mounting seat. A groove is concavely arranged on the top of the mounting seat in the transverse direction. The second threaded rod is rotatably arranged in the groove, and one end of the second threaded rod is transmission-connected to the output shaft of the third motor. The slider is fitted on the second threaded rod, and the bottom of the slider is slidably abutted against the bottom of the groove. The two ends of the connecting rod are respectively rotatably connected to the rear side wall of the reflecting prism and the top of the slider.

5. The construction pit surveying device according to claim 1, characterized in that: The fixing seat is connected with the base through a leveling mechanism, and a leveler is fixedly arranged on the top of the crossbar.

6. The construction pit surveying device according to claim 5, characterized in that: The leveler is fixedly arranged on one side of the top of the cross bar close to the mounting seat, a first mirror body is fixedly arranged above the leveler, and a second mirror body is fixedly arranged on one end of the top of the cross bar away from the mounting seat, the first mirror body is parallel to the second mirror body, and both the first mirror body and the second mirror body are inclined at 45 degrees to the top of the cross bar.

7. The construction pit surveying device according to claim 1, characterized in that: The four corners of the top of the fixing seat are all penetrated with drill rods in a vertical sliding manner.

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