CN114088071A - Device and method for determining center point of foundation pit of pit type car lifting jack - Google Patents
Device and method for determining center point of foundation pit of pit type car lifting jack Download PDFInfo
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- CN114088071A CN114088071A CN202111355547.XA CN202111355547A CN114088071A CN 114088071 A CN114088071 A CN 114088071A CN 202111355547 A CN202111355547 A CN 202111355547A CN 114088071 A CN114088071 A CN 114088071A
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- foundation pit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/06—Pits or building structures for inspection or services
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
Abstract
The invention discloses a device and a method for determining a center point of a foundation pit of a pit type car lifting jack. The device includes: the laser line projector comprises a laser line projector, a first position adjusting module and a second position adjusting module; the laser line projector is used for projecting four laser positioning lines in different directions respectively; the first position adjusting module is connected with the bottom of the laser demarcation device and used for adjusting the relative position of the laser demarcation device and the bottom of the foundation pit so that the laser positioning line passes through the corresponding preset sites respectively; the second position adjusting module is connected with the bottom of the first position adjusting module and used for adjusting the horizontal height of each position on the laser demarcation device; and the intersection point of the laser positioning lines is a central point to be determined. The scheme provided by the invention has the advantages that the steps are simple and convenient, the operation is easy, and the determination efficiency of the central point is improved.
Description
Technical Field
The embodiment of the invention relates to locomotive maintenance technology, in particular to a device and a method for determining a center point of a foundation pit of a pit type car lifting jack.
Background
The pit type car lifting jack is widely applied to the maintenance fields of subways, motor cars, locomotives and the like. The pit type car lifting jack is installed below the ground, and the installation construction of the pit type car lifting jack belongs to deep pit construction. Before the pit type car lifting jack is installed, the measurement of the installation reference center in the foundation pit needs to be carried out according to the positioning size of the ground. The verticality of concrete pouring is difficult to guarantee, and the positioning size measured on the ground is projected to the bottom of a pit, so that deviation often occurs.
At present, the installation reference center is determined by adopting a laser projector, if deviation occurs in the positioning process, repositioning and horizontal adjustment are needed, the positioning step is complicated, and the efficiency is low.
Disclosure of Invention
The invention provides a device and a method for determining a center point of a foundation pit of a pit type car lifting jack, which are simple and convenient in steps and easy to operate and improve the efficiency.
In a first aspect, an embodiment of the present invention provides a device for determining a center point of a foundation pit of a pit type car lifting jack. The foundation pit is arranged between two sections of rails for maintenance, the two sections of rails for maintenance are in the same horizontal plane, the central lines of the two sections of rails for maintenance are overlapped, four side walls of the foundation pit are respectively provided with four preset sites, the connecting line of the preset sites on two opposite side walls is parallel to the central line in the vertical plane, the connecting line of the preset sites on the other two opposite side walls is perpendicular to the central line, and the connecting line of the preset sites on the first two opposite side walls is in the same horizontal plane;
the device for determining the center point of the foundation pit of the pit type car lifting jack comprises: the laser line projector comprises a laser line projector, a first position adjusting module and a second position adjusting module; the laser line projector is used for projecting four laser positioning lines in different directions respectively; the first position adjusting module is connected with the bottom of the laser demarcation device and used for adjusting the relative positions of the laser demarcation device and the bottom of the foundation pit so that the laser positioning lines respectively pass through corresponding preset sites; the second position adjusting module is connected with the bottom of the first position adjusting module and used for adjusting the horizontal height of each position on the laser demarcation device; and the intersection point of the laser positioning line passing through the corresponding preset positioning point at the bottom of the foundation pit is the central point to be determined.
Optionally, the first position adjustment module includes a cross sliding table, the cross sliding table includes a first sliding table and a second sliding table, a base of the laser demarcation device is fixedly connected with a first sliding block of the first sliding table, and the laser demarcation device can slide along a guide rail of the first sliding table along with the first sliding block; the base of the first sliding table is fixedly connected with the second sliding block of the second sliding table, and the first sliding table can slide along the guide rail of the second sliding table along with the second sliding block; the extending direction of the guide rail of the first sliding table is perpendicular to the extending direction of the guide rail of the second sliding table.
Optionally, the first sliding table further comprises a first adjusting knob, and the first adjusting knob is connected with the first sliding block through a rotating shaft and used for adjusting the position of the first sliding block; the second sliding table further comprises a second adjusting knob, and the second adjusting knob is connected with the second sliding block through a rotating shaft and used for adjusting the position of the second sliding block.
Optionally, the second position adjustment module includes at least four height adjustment knobs, the height adjustment knobs are arranged on the base of the second sliding table, and the height adjustment knobs are used for adjusting the heights of different positions on the laser demarcation device.
Optionally, the device for determining the center point of the foundation pit of the pit type car lifting jack further comprises: the sensing module is used for acquiring horizontal information and position information of the laser demarcation device and the relative position relation between the laser positioning line and the preset positioning point; the control module is respectively electrically connected with the laser demarcation device, the first position adjusting module, the second position adjusting module and the sensing module, and is used for controlling the second position adjusting module according to the horizontal information and controlling the first position adjusting module according to the position information and the relative position relation.
Optionally, the sensing module includes a level meter, and the level meter is disposed on the laser line projector and is configured to collect level information of the laser line projector.
Optionally, the sensing module includes an image acquisition device, and the image acquisition device is configured to acquire an image of the preset positioning point, determine the position information according to a position of the preset positioning point in the image, and determine the relative position relationship according to a relative relationship between the preset positioning point in the image and the laser positioning line.
In a second aspect, an embodiment of the present invention further provides a method for determining a center point of a foundation pit of a pit type car lifting jack, where the method is implemented by using the apparatus for determining a center point of a foundation pit of a pit type car lifting jack according to any one of the first aspect of the claims, and the method for determining a center point of a foundation pit of a pit type car lifting jack includes: adjusting the horizontal height of each position on the laser demarcation device by using a second position adjusting module to enable the laser demarcation device to be horizontally placed; adjusting the laser demarcation device to a preset position by using a first position adjusting module; adjusting the position of the laser line projector by using the first position adjusting module according to the relative position of the laser positioning line and the corresponding preset positioning point, so that each laser positioning line passes through the corresponding preset positioning point; and judging whether each laser positioning line passes through the corresponding preset site, if so, ending the process, and if not, returning to the previous step, wherein the intersection point of the laser positioning lines is the central point.
Optionally, adjusting the level of each position on the laser demarcation device by using a second position adjusting module to horizontally place the laser demarcation device, including: and respectively controlling the heights of the four height adjusting knobs according to the horizontal information of the laser demarcation device, so that the laser demarcation device is horizontally placed.
Optionally, the adjusting the laser line projector to a preset position by using a first position adjusting module includes: and adjusting the position of a sliding block of the cross sliding table according to the position information of the laser demarcation device, so that the laser demarcation device is adjusted to the preset position.
According to the device and the method for determining the center point of the foundation pit of the pit type car lifting jack, provided by the embodiment of the invention, the laser line projector can project four laser positioning lines to the side walls of four foundation pits respectively, the second position adjusting module can adjust the horizontal height of each position on the laser line projector, the first position adjusting module can adjust the relative position of the laser line projector and the bottom of the foundation pit, so that the laser positioning lines pass through corresponding preset positions respectively, in the process of adjusting the position of the laser line projector, the laser line projector is driven to move only by the movable part of the first position adjusting module, the position of the whole determining device is unchanged, the horizontal information of the laser line projector is unchanged, the horizontal height does not need to be adjusted repeatedly after the position is changed, the center point of the foundation pit is determined quickly, the using steps are simple and easy to operate, repeated adjustment is not needed, and the efficiency is improved.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of a foundation pit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a device for determining a center point of a foundation pit of a pit type car lifting jack according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a device for determining a center point of a foundation pit of a pit type car lifting jack according to another embodiment of the present invention;
fig. 4 is a schematic view of an application scenario of a device for determining a center point of a foundation pit of a pit type car lifting jack according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a device for determining a center point of a foundation pit of a pit-type car lifting jack according to an embodiment of the present invention;
fig. 6 is a flowchart of a method for determining a center point of a foundation pit of a pit type car lifting jack according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As background art, pit type car lifting jack is applied to the field of maintenance of public transport means such as subways, motor cars and locomotives. The pit type car lifting jack is installed below the ground, the ground is covered by a steel cover plate, and the main structure of the pit type car lifting jack comprises a bogie lifting unit and a car body lifting unit. The bogie lifting unit is arranged below a bogie of the motor train unit and used for lifting the whole motor train unit and the bogie of the motor train unit. The vehicle body lifting units are arranged on two sides of the bogie lifting unit and used for jacking the bogie points and lifting the vehicle body. Before the pit type car lifting jack is installed, the central point of a foundation pit needs to be measured according to the positioning size of the ground, the foundation pit is generally deep and reaches about 6 meters, the pit type car lifting jack belongs to pit construction, and the deviation often appears after the positioning size measured on the ground is projected to the bottom of the pit. The inventors have intensively studied and found that the cause of such deviation is mainly that the position of concrete pouring is easily deviated and the verticality of the pit wall is difficult to ensure. In the traditional scheme for determining the center point of the foundation pit, manual plumb bob marking and a laser demarcation device are adopted. Manual observation, manual plumb bob and manual marking are needed for manual plumb bob marking, and the operation is complicated; when the laser line projector deviates from the preset position, the laser line projector needs to be repositioned and horizontally adjusted, so that the problem that the central point in a foundation pit needs to be horizontally adjusted and repeatedly positioned for many times is solved, the positioning steps are complicated, and the efficiency is low.
Based on the reasons, the embodiment of the invention provides a device for determining the center point of a foundation pit of a pit type car lifting jack. Fig. 1 is a schematic structural view of a cross section of a foundation pit according to an embodiment of the present invention, and fig. 2 is a schematic structural view of a device for determining a center point of the foundation pit of a pit-type car lifting jack according to an embodiment of the present invention, where the foundation pit is disposed between two sections of rails 101 for maintenance (only one section of the rail is exemplarily shown), the two sections of rails 101 for maintenance are in a same horizontal plane and center lines thereof are coincident, four preset sites 103 are respectively disposed on four side walls 102 of the foundation pit, a connection line of the preset sites 103 on two opposite side walls 102 is parallel to the center lines of the two sections of rails 101 for maintenance in a vertical plane, and a connection line of the preset sites 103 on the other two opposite side walls 102 is perpendicular to the center lines of the two sections of rails 101 for maintenance and is in a same horizontal plane as a connection line of the first two preset sites 103.
Referring to fig. 1 and 2, the apparatus 200 for determining the center point of the pit car lifting jack includes: the laser line projector 201, the first position adjusting module 202 and the second position adjusting module 203; the laser line projector 201 is used for projecting four laser positioning lines in different directions respectively; the first position adjusting module 202 is connected with the bottom of the laser demarcation device 201 and is used for adjusting the relative positions of the laser demarcation device 201 and the bottom of the foundation pit so that the laser positioning lines respectively pass through corresponding preset positions; the second position adjusting module 203 is connected with the bottom of the first position adjusting module 202 and is used for adjusting the horizontal height of each position on the laser demarcation device 201; and the intersection point of the laser positioning line passing through the corresponding preset site 103 at the bottom of the foundation pit is a central point to be determined.
Specifically, the laser line projector 201 includes two pairs of laser emitting ports, a first pair of laser emitting ports can project the laser alignment lines in a first direction and a direction opposite to the first direction, respectively, and a second pair of laser emitting ports can project the laser alignment lines in a second direction and a direction opposite to the second direction, respectively, where the first direction and the second direction are perpendicular to each other. The first position adjustment module 202 is fixedly connected to the bottom of the laser line projector 201, and can drive the laser line projector 201 to move, so as to adjust the relative position between the laser line projector 201 and the bottom surface of the foundation pit, so that four laser positioning lines emitted by the laser line projector 201 pass through corresponding preset positions respectively. The second position adjustment module 203 is disposed at the bottom of the first position adjustment module 202, and can adjust the laser demarcation device 201 to a horizontal position by adjusting the height of each portion thereof, for example, the second position adjustment module 203 may be a mechanical height adjustment device or any other device capable of adjusting the horizontal height.
For example, the center point of the foundation pit needs to be determined before the pit-type car lifting jack is erected. Firstly, the device 200 for determining the center point of the foundation pit of the pit type car lifting jack is arranged in a preset range of the foundation pit, so that the laser emitting ports of the laser line projector 201 are respectively opposite to the side faces of the foundation pit where the corresponding preset points are located, and the preset range can be a central area at the bottom of the foundation pit and can be an area of 2 square meters. Then, the laser line projector 201 is adjusted to be horizontally placed by the second position adjustment module 203. At this time, the relative relationship between the laser positioning lines and the corresponding preset positioning points is collected, and the position of the laser line projector 201 is further adjusted by using the first position adjusting module 202, so that the four laser positioning lines respectively pass through the corresponding preset positioning points, and at this time, the intersection points of the four laser positioning lines on the bottom surface of the foundation pit are the center point of the foundation pit.
The foundation pit central point determining device of the pit type car lifting jack provided by the embodiment, the laser demarcation device can project four laser positioning lines to four foundation pit side walls respectively, the second position adjusting module can adjust the horizontal height of each position on the laser demarcation device, the first position adjusting module can adjust the relative position of the laser demarcation device and the foundation pit bottom, so that the laser positioning lines pass through corresponding preset sites respectively, in the process of adjusting the position of the laser demarcation device, the laser demarcation device is driven to move only by the movable part of the first position adjusting module, the position of the whole determining device is unchanged, the horizontal information of the laser demarcation device is unchanged, the horizontal height does not need to be adjusted repeatedly after the position is changed, the rapid determination of the foundation pit central point is realized, the using steps are simple and easy to operate, repeated adjustment is not needed, and the efficiency is improved.
Fig. 3 is a schematic structural diagram of another device for determining a center point of a foundation pit of a pit car lifting jack provided in an embodiment of the present invention, and fig. 4 is a schematic application scenario of the device for determining a center point of a foundation pit of a pit car lifting jack provided in an embodiment of the present invention, and with reference to fig. 3 and fig. 4, optionally, the first position adjustment module includes a cross sliding table, the cross sliding table includes a first sliding table 301 and a second sliding table 302, a base of the laser line projector 201 is fixedly connected to a first sliding block 303 of the first sliding table 301, and the laser line projector 201 can slide along a guide rail of the first sliding table 301 along with the first sliding block 303; the base of the first sliding table 301 is fixedly connected with a second sliding block (not shown in the figure) of the second sliding table 302, and the first sliding table 301 can slide along the guide rail of the second sliding table 302 along with the second sliding block; wherein the extending direction of the guide rails of the first slide table 301 is perpendicular to the extending direction of the guide rails of the second slide table 302. The second position adjusting module 203 includes at least four height adjusting knobs 304, the height adjusting knobs 304 are disposed on the base of the second sliding table 302, and the height adjusting knobs 304 are used for adjusting the heights of different positions on the laser demarcation device 201.
Specifically, the first sliding table 301 may include a first slider 303 and a corresponding guide rail, and the first slider 303 may slide bidirectionally along an extending direction of the corresponding guide rail. The second sliding table 302 may include a second sliding block and a corresponding guide rail, and the second sliding block may bidirectionally slide along the extension direction of the corresponding guide rail. Fixed connection between the base of laser demarcation appearance 201 and first slider 303, fixed connection between the base of first slip table 301 and the second slider, laser demarcation appearance 201 can slide along the guide rail extending direction of first slip table 301 and the guide rail extending direction of second slip table 302, can realize the position adjustment of the quadriversal of laser demarcation appearance 201, exemplarily, the length of guide rail can also be provided with the scale on 1.5 meters and the guide rail, make things convenient for the staff to record data. The second position adjustment module includes at least four height adjustment knobs 304, and the height adjustment knobs 304 can adjust the height of each position of the laser demarcation device 201 by adjusting the length, the inclination degree or any other parameter capable of changing the plumb height after stretching, so that the laser demarcation device 201 is horizontally placed. In the determination process of the center point of the foundation pit, the laser demarcation device 201 can be horizontally placed through the height adjusting knob 304, the cross sliding table is reused to enable the laser positioning line 307 to pass through the corresponding preset site 103, at the moment, the center point of the foundation pit is the intersection point of the four laser positioning lines 307 at the bottom of the foundation pit, the determination of the center point of the foundation pit is realized, and the determination efficiency of the center point of the foundation pit is further improved.
With continuing reference to fig. 3 and 4, optionally, the first sliding table 301 further includes a first adjusting knob 305, and the first adjusting knob 305 is connected to the first sliding block 303 through a rotating shaft, and is used for adjusting the position of the first sliding block 303; the second sliding table 302 further includes a second adjusting knob 306, and the second adjusting knob 306 is connected to the second sliding block via a rotating shaft, and is used for adjusting the position of the second sliding block.
Specifically, first adjust knob 305 can be connected with first slider 303 through pivot and gear, surveyor can realize the position adjustment of first slider 303 on corresponding the guide rail through rotatory first adjust knob 305, second adjust knob 306 can be connected with the second slider through pivot and gear, surveyor can realize the position adjustment of second slider on corresponding the guide rail through rotatory second adjust knob 306, and then realized the more careful and accurate adjustment to the position of laser demarcation appearance 201, the accuracy of foundation ditch central point has been improved.
Fig. 5 is a schematic structural diagram of another apparatus for determining a center point of a foundation pit of a pit car lifting jack according to an embodiment of the present invention, and referring to fig. 5, optionally, the apparatus 200 for determining a center point of a foundation pit of a pit car lifting jack further includes: the system comprises a sensing module 402 and a control module 401, wherein the sensing module 402 is used for acquiring horizontal information and position information of the laser demarcation device 201 and a relative position relation between a laser positioning line and a preset positioning point; the control module 401 is electrically connected to the laser line projector 201, the first position adjustment module 202, the second position adjustment module 203, and the sensing module 402, and is configured to control the second position adjustment module 203 according to the horizontal information and control the first position adjustment module 202 according to the position information and the relative position relationship.
Specifically, the sensing module 402 may include a level gauge and an image collecting device, and the level gauge may be disposed on the laser line projector 201 or on the first slider 303 for collecting level information of the laser line projector 201. The image acquisition device can be arranged at the top of the laser demarcation device 201 and can comprise four camera devices, and the shooting direction of each camera device can be respectively consistent with the direction opposite to the four exit ports of the laser demarcation device 201. The image acquisition device can also comprise a camera device, the camera shooting direction of the image acquisition device can be switched to the opposite direction of any one of the four exit ports according to requirements, the image acquisition device can acquire images of four preset positioning points and determine the position information of the foundation pit center point determination device through the positions of the preset positioning points in the images, and the relative position relationship can also be determined through the relative relationship between the preset positioning points in the images and the laser positioning lines. The control module 401 may be a control chip, a device or any device having a data processing function, an image processing function and a data processing function, and the control module 401 may be connected to the driving device of the second position adjusting module 203 and the level meter, respectively, and may determine the relative level of each position of the laser demarcation device 201 according to the level information collected by the level meter, and further control the second position adjusting module 203 to adjust the height of the height adjusting knob 304, so that the laser demarcation device 201 is horizontally disposed. The driving devices of the first position adjustment module 202 and the second position adjustment module 203 may each be a motor or other electrically controllable driver. The control module 401 is further connected to the first position adjustment module 202 and the image acquisition device, and can control the operating state of the driver of the first position adjustment module 202 according to the information acquired by the image acquisition device after the determination device of the center point of the foundation pit is in the preset range, the laser exit ports are respectively opposite to the four side walls of the foundation pit, and the laser line projector 201 is horizontally arranged, and further adjust the position of the laser line projector 201 so that the four laser positioning lines respectively pass through the preset positioning points. The controller can also control dotting equipment arranged at the bottom of the determining device of the center point of the foundation pit to mark on the intersection point of the four laser positioning lines, the dotting equipment can be an electric ink-jet device with camera feedback or other dotting marking devices, automatic determination of the center point of the foundation pit of the pit type car lifting jack is achieved, and determination efficiency of the center point of the foundation pit is further improved.
The embodiment of the invention also provides a method for determining the center point of the foundation pit of the pit type car lifting jack, which is realized by adopting the device for determining the center point of the foundation pit of the pit type car lifting jack in any embodiment. Fig. 6 is a flowchart of a method for determining a center point of a foundation pit of a pit-type car lifting jack according to an embodiment of the present invention, and referring to fig. 6, the method for determining the center point of the foundation pit of the pit-type car lifting jack includes:
s501, adjusting the horizontal height of each position on the laser demarcation device by using a second position adjusting module to enable the laser demarcation device to be horizontally placed.
Specifically, the survey crew can place the device for determining the center point of the foundation pit of the pit type car lifting jack in the preset range of the bottom of the foundation pit, and then control the second position adjusting module to work to adjust the laser demarcation device to be in a horizontal placement state. Illustratively, the heights of four height adjusting knobs can be respectively controlled according to the horizontal information of the laser demarcation device, so that the laser demarcation device is horizontally placed
S502, adjusting the laser demarcation device to a preset position by using the first position adjusting module.
Specifically, the laser demarcation device is located at the preset position, and the projection of the laser demarcation device to the plane where the first slide way is located at the central position of the first slide way, and the projection of the laser demarcation device to the plane where the second slide way is located at the central position of the second slide way. And adjusting the first position adjusting module to enable the laser demarcation device to be located at a preset position. Illustratively, the position of the slide block of the cross sliding table can be adjusted according to the position information of the laser demarcation device, so that the laser demarcation device is adjusted to a preset position.
S503, adjusting the position of the laser line projector by using the first position adjusting module according to the relative position of the laser positioning line and the corresponding preset position point, so that each laser positioning line passes through the corresponding preset position point.
Specifically, the laser demarcation device projects four laser positioning lines on four side walls of the foundation pit, and controls the first adjusting module to adjust the position of the laser demarcation device according to the relative positions of the four laser positioning lines and corresponding preset positioning points, so that the four laser positioning lines respectively pass through the corresponding preset positioning points.
S504, judging whether each laser positioning line passes through the corresponding preset site, if so, ending the process, and if not, returning to the previous step, wherein the intersection point of the laser positioning lines is the central point.
Specifically, whether the laser positioning line passes through the corresponding preset site or not is judged, if yes, it is indicated that four lines formed by the laser positioning line on the bottom surface of the foundation pit are all central axes of the bottom surface of the foundation pit, and the intersection point of the four laser positioning lines on the bottom surface of the foundation pit is the center point of the foundation pit. If the laser positioning lines do not pass through the corresponding preset positions, the step S503 needs to be returned to further adjust the position of the laser line projector until the four laser positioning lines pass through the corresponding preset positions respectively.
The device and the method for determining the center point of the foundation pit of the pit type car lifting jack provided by the embodiment can adjust the horizontal height of each position on the laser demarcation device, then adjust the relative position of the laser demarcation device and the bottom of the foundation pit, so that the laser positioning line passes through the corresponding preset sites respectively, in the process of adjusting the position of the laser demarcation device, the laser demarcation device is driven to move only by the movable part of the first position adjusting module, the position of the whole determining device is unchanged, the horizontal information of the laser demarcation device is unchanged, the horizontal height does not need to be adjusted repeatedly after the position is changed, the center point of the foundation pit is determined quickly, the using steps are simple and convenient, the operation is easy, the repeated adjustment is not needed, and the efficiency is improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The device for determining the center point of the foundation pit of the pit type car lifting jack is characterized in that the foundation pit is arranged between two sections of rails for maintenance, the two sections of rails for maintenance are in the same horizontal plane, the central lines of the two sections of rails for maintenance are superposed, four side walls of the foundation pit are respectively provided with four preset positioning points, the connecting lines of the preset positioning points on two opposite side walls are parallel to the central lines in a vertical plane, the connecting lines of the preset positioning points on the other two opposite side walls are perpendicular to the central lines, and the connecting lines of the preset positioning points on the first two opposite side walls are in the same horizontal plane;
the device for determining the center point of the foundation pit of the pit type car lifting jack comprises: the laser line projector comprises a laser line projector, a first position adjusting module and a second position adjusting module;
the laser line projector is used for projecting four laser positioning lines in different directions respectively;
the first position adjusting module is connected with the bottom of the laser demarcation device and used for adjusting the relative position of the laser demarcation device and the bottom of the foundation pit so that the laser positioning line passes through the corresponding preset positioning points respectively;
the second position adjusting module is connected with the bottom of the first position adjusting module and used for adjusting the horizontal height of each position on the laser demarcation device;
and the intersection point of the laser positioning line passing through the corresponding preset positioning point at the bottom of the foundation pit is the central point to be determined.
2. The device for determining the center point of the foundation pit of the pit type car lifting jack according to claim 1, wherein the first position adjusting module comprises a cross sliding table, the cross sliding table comprises a first sliding table and a second sliding table, a base of the laser demarcation device is fixedly connected with a first sliding block of the first sliding table, and the laser demarcation device can slide along a guide rail of the first sliding table along with the first sliding block; the base of the first sliding table is fixedly connected with the second sliding block of the second sliding table, and the first sliding table can slide along the guide rail of the second sliding table along with the second sliding block; the extending direction of the guide rail of the first sliding table is perpendicular to the extending direction of the guide rail of the second sliding table.
3. The device for determining the center point of the foundation pit of the pit type car lifting jack according to claim 2, wherein the first sliding table further comprises a first adjusting knob, and the first adjusting knob is connected with the first sliding block through a rotating shaft and used for adjusting the position of the first sliding block;
the second sliding table further comprises a second adjusting knob, and the second adjusting knob is connected with the second sliding block through a rotating shaft and used for adjusting the position of the second sliding block.
4. The device for determining the center point of the foundation pit of the pit type car lifting jack according to claim 1, wherein the second position adjusting module comprises at least four height adjusting knobs, the height adjusting knobs are arranged on the base of the second sliding table, and the height adjusting knobs are used for adjusting the heights of different positions on the laser demarcation device.
5. The apparatus for determining the center point of a pit car lifting jack according to any one of claims 1 to 4, further comprising: the sensing module is used for acquiring horizontal information and position information of the laser demarcation device and the relative position relation between the laser positioning line and the preset positioning point;
the control module is respectively electrically connected with the laser demarcation device, the first position adjusting module, the second position adjusting module and the sensing module, and is used for controlling the second position adjusting module according to the horizontal information and controlling the first position adjusting module according to the position information and the relative position relation.
6. The device for determining the center point of the foundation pit of the pit type car lifting jack according to claim 5, wherein the sensing module comprises a level gauge, and the level gauge is arranged on the laser lining machine and used for collecting the level information of the laser lining machine.
7. The device for determining the center point of the foundation pit of the pit type car lifting jack according to claim 5, wherein the sensing module comprises an image acquisition device, the image acquisition device is used for acquiring an image of the preset positioning point and determining the position information according to the position of the preset positioning point in the image, and the relative position relationship is determined according to the relative relationship between the preset positioning point in the image and the laser positioning line.
8. A method for determining a center point of a foundation pit of a pit type car lifting jack, characterized in that the method is implemented by using the device for determining a center point of a foundation pit of a pit type car lifting jack according to any one of claims 1 to 7, and the method for determining a center point of a foundation pit of a pit type car lifting jack comprises:
adjusting the horizontal height of each position on the laser demarcation device by using a second position adjusting module to enable the laser demarcation device to be horizontally placed;
adjusting the laser demarcation device to a preset position by using a first position adjusting module;
adjusting the position of the laser line projector by using the first position adjusting module according to the relative position of the laser positioning line and the corresponding preset positioning point, so that each laser positioning line passes through the corresponding preset positioning point;
and judging whether each laser positioning line passes through the corresponding preset site, if so, ending the process, and if not, returning to the previous step, wherein the intersection point of the laser positioning lines is the central point.
9. The method for determining the center point of the foundation pit of the pit type car lifting jack according to claim 8, wherein the adjusting the horizontal height of each position on the laser lining machine by the second position adjusting module to horizontally place the laser lining machine comprises:
and respectively controlling the heights of the four height adjusting knobs according to the horizontal information of the laser demarcation device, so that the laser demarcation device is horizontally placed.
10. The method for determining the center point of the foundation pit of the pit type car lifting jack according to claim 8, wherein the adjusting the laser line projector to a preset position by the first position adjusting module comprises:
and adjusting the position of a sliding block of the cross sliding table according to the position information of the laser demarcation device, so that the laser demarcation device is adjusted to the preset position.
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