Contact survey laser plumbing auxiliary device

Abstract

The utility model discloses a laser plumbing auxiliary device for contact survey. The laser plumbing auxiliary device comprises a ruler body (1) and a bubble leveling instrument (2), the semi-transparent sighting board (3) is provided with a positioning point (311); the laser emitters (4) are used for downwards sending laser signals perpendicular to the ruler body (1), the number of the laser emitters (4) is four, the four laser emitters (4) are arranged on the semitransparent sighting board (3) at intervals in the circumferential direction, if two diagonal laser emitters (4) in the four laser emitters (4) are connected, two straight lines are formed, and the intersection point of the two straight lines is a positioning point (311); the base (5) is arranged on the semitransparent sighting board (3); the prism head (7) is arranged on the base (5) and is provided with an acting surface which extends vertically and is used for receiving and reflecting a ranging laser signal of the total station; and the center of the prism head (7) and the positioning point (311) are positioned on the same vertical line. The device has the advantages of convenient operation and accurate laser plumbing.

Description

Technical Field

[0001] The utility model relates to the technical field of construction measurement, in particular to a laser point-casting auxiliary device for connection measurement. Background Art

[0002] The underground space connection measurement is to introduce the coordinates and azimuth of the ground control point into the underground space. The generally adopted method is to deploy a laser plumb line instrument on the underground target point to project the point. The specific steps are: emit the laser to the crosshairs of the semi-transparent sighting plate on the ground, and then use a steel ruler to measure the distance between the crosshairs and the control point, and then reversely calculate the plane coordinates of the target point in the underground space through the plane coordinates of the known points.

[0003] This method has four main problems: First, when the laser plumb line is used to cast a point, there is no auxiliary positioning, and the target plate needs to be continuously moved on the ground to find the laser position; second, the target plate is generally small in size and cannot be placed on the feeding port or maintenance well; third, the coordinates of the crosshair position cannot be measured directly, and the coordinate point inversion method is prone to errors; fourth, each measurement requires re-positioning, placement and other operations, which is inefficient.

[0004] In order to solve the above problems, a Chinese utility model patent with application number CN201922237283.2 (publication number CN211949679U) discloses a construction measurement auxiliary projection device, which uses a movable axial hollow projection cylinder on the ruler to correspond the layout point to the bottom of the projection cylinder. The device can achieve normal layout in obstructed areas. However, it is still necessary to use coordinate guide points to fix the position of the ruler body first, and the operation is relatively complicated; at the same time, the horizontal adjustment mechanism located on the base plate cannot directly ensure the horizontal state of the ruler body, which will cause deviations in laser projection. Therefore, further improvement is needed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a contact measurement laser point casting auxiliary device with convenient operation and accurate laser point casting in view of the current status of the prior art.

[0006] The utility model adopts the following technical solution to solve the above technical problems: a laser point-casting auxiliary device for contact measurement, comprising:

[0007] Ulna, extending laterally;

[0008] The leveling bubble gauge is set on the ruler to indicate whether the ruler is level;

[0009] It is characterized by: it also includes

[0010] A translucent target plate having a positioning point, the translucent target plate is used to receive a laser signal of a display laser plummet;

[0011] A laser transmitter is used to send downward a laser signal perpendicular to the ruler body. The laser signal is used for auxiliary positioning of underground target points. There are four laser transmitters, which are arranged on the semi-transparent sight plate at intervals along the circumference. If two diagonal laser transmitters of the four laser transmitters are connected, two straight lines will be formed. The intersection of the two straight lines is the positioning point.

[0012] A base, fixed on the translucent sighting plate;

[0013] The prism lens is arranged on the base and has an action surface extending vertically and used for receiving and reflecting the ranging laser signal of the total station; the center of the prism lens is on the same vertical line as the positioning point.

[0014] The base can adopt various structures. Specifically, the base includes

[0015] A fixed base is fixed on the translucent sighting plate;

[0016] The movable base is used for mounting the prism lens and is rotatably connected to the fixed base and can rotate around a vertical axis to drive the prism lens to move. At least the bottom of the movable base is embedded in the fixed base.

[0017] The fixed base can adopt various structures. Preferably, the fixed base includes

[0018] A mounting plate extending laterally for mounting the movable base;

[0019] There are at least two supporting legs, the upper end of each supporting leg is connected to the mounting plate, and the lower end of each supporting leg is welded and fixed to the translucent sighting plate.

[0020] The bubble leveling instrument can adopt various structures. Preferably, the bubble leveling instrument includes

[0021] The circular bubble gauge is set on the ruler to assist in roughly leveling the ruler.

[0022] The tube bubble gauge is set on the ruler to assist in the precise leveling of the ruler.

[0023] Preferably, there are at least two groups of the leveling bubble gauges, which are respectively located at the two ends of the length direction of the ruler body.

[0024] In order to measure multiple projection positions simultaneously, the linked measurement laser projection auxiliary device includes at least two measuring units spaced apart along the length direction of the ruler, and each measuring unit includes the translucent target plate, laser emitter, base, and prism lens.

[0025] In order to adjust the height of the ruler, it also includes

[0026] The height adjustment bracket is connected to the ruler body and is used to adjust the height of the ruler body.

[0027] The height adjustment bracket can have various structures. Preferably, the height adjustment bracket includes:

[0028] A support plate extending laterally, arranged at the bottom of the ruler body, and used to support the ruler body upward;

[0029] The bracket studs extend vertically, and there are two of them, wherein the upper end of one of the bracket studs is threadedly connected to one side of the support plate, and the upper end of the other bracket stud is threadedly connected to the other side of the support plate;

[0030] There are two limit blocks, which are located between the two bracket studs;

[0031] The ruler body is constrained in a groove surrounded by two limit blocks and a supporting plate.

[0032] Preferably, there are at least two groups of height adjustment brackets, which are spaced apart along the length direction of the ruler body.

[0033] In order to evaluate the distance between the laser emitted vertically upward by the laser rangefinder arranged at the target point in the underground space and the positioning point, a circular ring with the positioning point as the center is arranged on the semi-transparent sighting plate.

[0034] Compared with the prior art, the utility model has the following advantages: the utility model can quickly locate and match the underground target point and the ground translucent target plate positioning point (sight), does not require a guide point, supports direct acquisition of the target plate sight position coordinates, is easy to operate, accurately casts points, reduces the operating steps of the contact measurement, avoids unnecessary errors caused by unnecessary steps, can improve work efficiency, and reduce measurement errors;

[0035] At the same time, the leveling bubble meter can directly ensure the horizontal state of the ruler, making the laser projection accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the assembly of the semi-transparent target plate, laser emitter, base and prism lens of the utility model;

[0037] Figure 2 It is a schematic diagram of the assembly of the base and the prism lens in the embodiment of the utility model;

[0038] Figure 3 A schematic diagram of a height-adjustable bracket in an embodiment of the utility model;

[0039] Figure 4 This is a schematic diagram of a laser point-casting auxiliary device for contact measurement according to an embodiment of the utility model (without the laser transmitter). DETAILED DESCRIPTION

[0040] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0041] See also Figure 1 to Figure 4 The laser point projection auxiliary device for contact measurement includes a ruler 1, a leveling bubble meter 2, a semi-transparent target plate 3, a laser emitter 4, a base 5, a prism lens 7, a height adjustment bracket 6 and other main components.

[0042] The ruler body 1 extends horizontally.

[0043] See also Figure 4 The leveling bubble gauge 2 is arranged on the ruler body 1 to indicate whether the ruler body 1 is level. The leveling bubble gauge 2 includes a tube bubble gauge 21 and a circular bubble gauge 22; the circular bubble gauge 22 is arranged on the ruler body 1 to assist in roughly leveling the ruler body 1; the tube bubble gauge 21 is arranged on the ruler body 1 to assist in accurately leveling the ruler body 1. There are two sets of leveling bubble gauges 2, which are respectively located at the two ends of the length direction of the ruler body 1.

[0044] See also Figure 1 The semi-transparent target plate 3 has a positioning point 311, and a plurality of concentrically arranged circular rings 31 can be arranged with the positioning point 311 as the center. These circular rings 31 can be used to evaluate the distance between the laser vertically emitted upward by the laser rangefinder arranged at the target point in the underground space and the positioning point 311. The function of the circular rings 31 is similar to that of a ruler. The number of circular rings 31 is set according to the distance to be evaluated. There is at least one circular ring 31. The semi-transparent target plate 3 is used to receive the laser signal of the display laser plummet.

[0045] See also Figure 1 The laser emitter 4 is used to send a laser signal perpendicular to the ruler body 1 downward, and the laser signal is used for auxiliary positioning of underground target points. There are four laser emitters 4 and they are arranged on the translucent target plate 3 at intervals along the circumferential direction. If two diagonal laser emitters 4 of the four laser emitters 4 are connected, two straight lines will be formed, and the intersection of the two straight lines is the positioning point 311.

[0046] See also Figure 1 to Figure 4The base 5 is fixed on the translucent target plate 3 (specifically, the support legs 512 described below are welded and fixed to the translucent target plate 3); the base 5 includes a fixed base 51 and a movable base 52. The fixed base 51 includes a mounting plate 511 and support legs 512; the mounting plate 511 extends horizontally for mounting the movable base 52; there are two support legs 512, the upper end of each support leg 512 is connected to the mounting plate 511, and the lower end of each support leg 512 is welded and fixed to the translucent target plate 3. The upper part of the movable base 52 is fixed to the prism lens 7, and the movable base 52 is embedded in the mounting groove of the mounting plate 111, and the outer periphery of the movable base 52 is rotatably connected to the groove wall of the mounting groove of the mounting plate 511 (using the existing rotatable structure), and the prism lens 7 is manually acted on to drive the prism lens 7 and the movable base 52 to rotate relative to the fixed base 51, so as to adjust the prism lens 7 to a desired position, or a motor is provided, and the motor drives the movable base 52 to rotate (specifically, the transmission structure provided between the motor and the movable base 52 adopts the existing structure), so as to drive the prism lens 7 fixed to the movable base 52 to rotate. The prism lens 7 is provided on the base 5, and has an action surface extending vertically and used to receive and reflect the ranging laser signal of the total station; the center of the prism lens 7 is on the same vertical line as the positioning point 311. When the position of the movable base 52 relative to the fixed base 51 is determined, the vertical distance between the prism lens 7 and the positioning point 311 is fixed.

[0047] That is, the integrated target plate with integrated prism lens 7 and laser transmitter 4 is used to transmit auxiliary positioning laser and receive laser signals of laser plummet and total station. In this embodiment, the contact measurement laser point projection auxiliary device includes three measuring units 10 spaced apart along the length direction of the ruler body 1, and supports the simultaneous acquisition of position data of three target points. Each measuring unit 10 includes the above-mentioned translucent target plate 3, laser transmitter 4, base 5, and prism lens 7.

[0048] See also Figure 3 , the height adjustment bracket 6 is connected to the ruler body 1 and is used to adjust the height of the ruler body 1. The height adjustment bracket 6 includes a support plate 63, a bracket stud 61, and a limit block 62; the support plate 63 extends horizontally, is arranged at the bottom of the ruler body 1, and is used to support the ruler body 1 upward; the bracket stud 61 extends vertically, and there are two of them, the upper end of one of the bracket studs 61 is threadedly connected to one side of the support plate 63, and the upper end of the other bracket stud 61 is threadedly connected to the other side of the support plate 63; there are two limit blocks 62, and they are located between the two bracket studs 61; the ruler body 1 is constrained in the groove surrounded by the two limit blocks 62 and the support plate 63. There are two groups of height adjustment brackets 6, and they are spaced apart along the length direction of the ruler body 1.

[0049] The working principle and usage are as follows.

[0050] Place the laser point-casting auxiliary device for contact measurement at the wellhead, feeding port and other locations. The feeding port is taken as an example for explanation below:

[0051] Step 1: Place the ruler 1 on the feeding port, move the height-adjustable brackets 6 at both ends to the two ends of the feeding port, and make the bottom of the bracket studs 61 contact the ground;

[0052] Step 2: Rotate the support stud 61 clockwise or counterclockwise to roughly level it so that the circular bubble gauges 22 at both ends are in the middle position;

[0053] Step 3: Continue to rotate the support stud 61 clockwise or counterclockwise, and then fine-tune the level so that the bubble meter 21 at both ends is in the middle position;

[0054] Step 4: Turn on the laser transmitter 4, and 4 points will be displayed below. The 4 points will form a rectangle. If the two points at the opposite corners of the rectangle are connected, two straight lines will be formed. The intersection of the marked straight lines is the target point in the underground space.

[0055] Step 5: Arrange a laser rangefinder at the target point of the underground space, emit laser vertically upward, and check whether the laser is on the sight (positioning point 311) of the translucent sight plate 3. If there is a deviation (that is, the laser is not irradiated on the positioning point 311 at this time, but irradiated on the ring 31 outside the positioning point 311 or near the ring 31), according to the distance between the ring 31 adjacent to the laser and the positioning point 311, estimate the adjustment method and re-operate steps 2, 3, and 4 so that the laser emitted upward by the laser rangefinder coincides with the positioning point 311, and then proceed to the next step;

[0056] Step 6: Arrange the total station on the ground, rotate the movable base 52 so that the active surface of the prism lens 7 faces the direction of the total station;

[0057] Step 7: Use the total station to aim at the prism lens 7. The total station collects and records the plane coordinates of the prism lens 7.

[0058] The device 1 of this embodiment can realize the rapid correspondence between the placement position of the semi-transparent sight plate (positioning point 311) and the position of the target point in the underground space, and the projection point is accurate;

[0059] 2. It can solve the problem of placement of sighting plates in larger openings such as feeding ports and inspection wells;

[0060] 3. No need for a guide point, the position of the sight plane can be directly measured after the sight plate is installed and aligned with the laser;

[0061] 4. It can carry out 3 casting tasks at the same time, which is easy to operate and efficient.

Claims

1. A laser point-casting auxiliary device for contact measurement, comprising: The ulna (1) extends laterally; A leveling bubble meter (2) is arranged on the ruler body (1) and is used to indicate whether the ruler body (1) is level; Features: Also includes A translucent target plate (3) having a positioning point (311), the translucent target plate (3) being used to receive a laser signal of a display laser plummet; A laser transmitter (4) is used to send a laser signal perpendicular to the ruler (1) downwards, and the laser signal is used for auxiliary positioning of underground target points. There are four laser transmitters (4) and they are arranged on the semi-transparent target plate (3) at intervals along the circumference. If two diagonal laser transmitters (4) are connected, two straight lines will be formed, and the intersection of the two straight lines is the positioning point (311); A base (5) is fixed on the translucent sight plate (3); The prism lens (7) is arranged on the base (5) and has an action surface extending vertically and used for receiving and reflecting the ranging laser signal of the total station; the center of the prism lens (7) and the positioning point (311) are located on the same vertical line.

2. The laser point-casting auxiliary device for contact measurement according to claim 1 is characterized in that: The base (5) comprises A fixed base (51) is fixedly mounted on the translucent sight plate (3); The movable base (52) is used for mounting the prism lens (7) and is rotatably connected to the fixed base (51) and can rotate around a vertical axis to drive the prism lens (7) to move. At least the bottom of the movable base (52) is embedded in the fixed base (51).

3. The laser point-casting auxiliary device for contact measurement according to claim 2 is characterized in that: The fixed base (51) comprises A mounting plate (511) extending laterally for mounting the movable base (52); There are at least two supporting legs (512), the upper end of each supporting leg (512) is connected to the mounting plate (511), and the lower end of each supporting leg (512) is welded and fixed to the translucent sighting plate (3).

4. The laser point-casting auxiliary device for contact measurement according to claim 1 is characterized in that: The bubble leveling instrument (2) comprises A circular bubble meter (22), arranged on the ruler body (1), for assisting in roughly leveling the ruler body (1); The tube bubble meter (21) is arranged on the ruler body (1) and is used to assist in accurately leveling the ruler body (1).

5. The laser point-casting auxiliary device for contact measurement according to claim 1 is characterized in that: There are at least two groups of the leveling bubble gauges (2), which are respectively located at two ends of the ruler (1) in the length direction.

6. The laser point-casting auxiliary device for contact measurement according to claim 1 is characterized in that: The laser point projection auxiliary device for contact measurement comprises at least two measuring units (10) spaced apart along the length direction of the ruler (1), and each measuring unit (10) comprises the semi-transparent target plate (3), a laser emitter (4), a base (5), and a prism lens (7).

7. The laser point-casting auxiliary device for connection measurement according to claim 1 is characterized in that: It also includes a height adjustment bracket (6) which is connected to the ruler body (1) and is used to adjust the height of the ruler body (1).

8. The laser point-casting auxiliary device for connection measurement according to claim 7 is characterized in that: The height adjustment bracket (6) comprises A support plate (63) extending laterally, arranged at the bottom of the ruler body (1), and used to support the ruler body (1) upwards; Two bracket studs (61) extend vertically, wherein the upper end of one bracket stud (61) is threadedly connected to one side of the support plate (63), and the upper end of the other bracket stud (61) is threadedly connected to the other side of the support plate (63); There are two limit blocks (62) and they are located between the two bracket studs (61); The ruler body (1) is constrained in a groove surrounded by two limit blocks (62) and a supporting plate (63).

9. The laser point-casting auxiliary device for connection measurement according to claim 7, characterized in that: There are at least two groups of height adjustment brackets (6), which are spaced apart along the length direction of the ruler body (1).

10. The laser point-casting auxiliary device for connection measurement according to claim 1, characterized in that: The semi-transparent target plate (3) is provided with a circular ring (31) with the positioning point (311) as the center.

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