Rotary laser radar surveying and mapping device for landform surveying and mapping

Abstract

The invention discloses a rotary laser radar surveying and mapping device for landform surveying and mapping, and belongs to the technical field of surveying and mapping equipment, the rotary laser radar surveying and mapping device comprises a base, a turntable, a laser radar and a laser radar mounting piece, the turntable is rotatably arranged on the base, the laser radar mounting piece is arranged on the turntable, and the laser radar is arranged in the laser radar mounting piece; the laser radar installation part comprises a plurality of arc-shaped plates, arcs of the arc-shaped plates or the arcs of the arc-shaped plates extend to form a circle, a plurality of grooves are formed in the upper surface of the rotating disc and are evenly distributed in a radial shape along the center of the rotating disc, a lead screw is arranged in each groove, a connecting block is in threaded connection with each lead screw, and the arc-shaped plates are arranged on the connecting blocks. A vertical hole is formed in the center of the rotating disc, a rotating shaft is arranged in the vertical hole, a second bevel gear is arranged at the upper end of the rotating shaft, and the first bevel gears are meshed with the second bevel gear. The device can adapt to convenient installation of laser radars of different shapes and types, and is high in flexibility.

Description

Technical Field

[0001] The invention relates to the technical field of surveying and mapping equipment, and in particular to a rotary laser radar surveying and mapping device for landform surveying and mapping. Background Art

[0002] Geomorphic surveying refers to the process of measuring and drawing contour lines to reflect the ups and downs and changes in the shape of the earth's surface. The main tasks of geomorphic surveying include mapping contour lines, determining geomorphic feature points, and connecting geomorphic lines. In traditional geomorphic surveying, a laser radar surveying device is usually used. The surveying device consists of a laser transmitter, an optical receiver, a turntable, and an information processing system. The laser converts electrical pulses into light pulses and transmits them. The optical receiver then converts the light pulses reflected from the target into electrical pulses and sends them to the display. The laser radar surveying device is usually vehicle-mounted, and the laser radar and the turntable are usually fixed with bolts, which makes installation and disassembly inconvenient, especially in the case of rust. In addition, the two are connected in a matching manner, and laser radars of different shapes and types cannot be flexibly replaced, which is not conducive to industrial upgrading.

[0003] For example, the patent document with publication number CN 118244236 A discloses a rotary laser radar mapping device for landform mapping, including a vertical plate and a mounting plate, the inner side of the mounting plate is rotatably connected with a rotating shaft. The base and movable seat for mounting the laser radar body are plugged into the positioning block and the positioning hole, and the elastic force of the second spring is used to realize that the protrusion connected thereto is clamped inside the mounting through hole, and by pushing the operating block, the first spring is stretched, so that the push block connected thereto pushes the protrusion out of the inside of the mounting through hole, thereby facilitating the extraction of the positioning block from the inside of the positioning hole, and facilitating the disassembly of the laser radar body, solving the problem that the laser radar equipped with the laser radar mapping device for landform mapping is mostly fixed by bolt locking, and the bolt structure will rust after long-term use, making it difficult to disassemble and causing inconvenience in maintenance. However, in this invention, the laser radar and the turntable are still connected in a matching manner, so the above technical problems cannot be solved.

[0004] Another example is a rotary laser radar mapping device for landform mapping disclosed in patent document No. CN 219737758 U, which includes a base, a buffer seat slidably connected to the inner surface of the base, a buffer column embedded in the upper surface of the buffer seat, a mounting plate fixedly connected to the upper surface of the buffer column, a No. 1 gear rotatably connected to the upper surface of the mounting plate, a radar body fixedly connected to the upper surface of the No. 1 gear, a No. 2 gear rotatably connected to the upper surface of the No. 1 gear, a No. 1 rotating shaft rotatably connected to the lower surface of the mounting plate near the two side edges, and a bracket rotatably connected to the outer surface of the No. 1 rotating shaft. This patent document also cannot solve the above technical problems. Summary of the invention

[0005] In view of this, the present invention aims at the deficiencies in the prior art and provides a rotating laser radar surveying and mapping device for landform surveying and mapping, which can adapt to the convenient installation of laser radars of different shapes and types, has high flexibility, and is convenient for industrial upgrading.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a rotating laser radar surveying and mapping device for landform surveying and mapping, comprising a base, a turntable, a laser radar and a laser radar mounting member, the turntable is rotatably arranged on the base, the laser radar mounting member is arranged on the turntable, and the laser radar is arranged in the laser radar mounting member; the laser radar mounting member comprises a plurality of arc plates, the arc lines of the plurality of arc plates or their extensions form a circle, a plurality of grooves are provided on the upper surface of the turntable, and the plurality of grooves are evenly arranged radially along the center of the turntable, a screw rod is provided in each of the grooves, a connecting block is threadedly connected to the screw rod, the arc plate is provided on the connecting block, a first bevel gear is provided at one end of each of the screw rods close to the center of the turntable, a vertical hole is provided in the center of the turntable, a rotating shaft is provided in the vertical hole, a second bevel gear is provided on the upper end of the rotating shaft, and a plurality of the first bevel gears are all meshed with the second bevel gears.

[0007] Furthermore, a spring is connected to the inner side of one end of each groove away from the center of the turntable. The spring is sleeved on the outside of the screw rod, and the other end is connected to the connecting block.

[0008] Furthermore, the lower end of the rotating shaft passes through the turntable and enters the base, and is connected to the output shaft of the motor in the base. A push switch is arranged on the base, and the push switch is connected to the motor wire.

[0009] Furthermore, a bearing groove is provided at the bottom of the turntable and the center of the top of the base, bearings are embedded in the bearing grooves, and the rotating shaft is fixed in the two bearings.

[0010] Furthermore, the rotating shaft is composed of a fixed rod and a spring telescopic rod, the bottom end of the spring telescopic rod is connected to the top end of the fixed rod, the spring telescopic rod is located on the upper side of the bearing at the bottom of the turntable, and the second bevel gear is arranged on the top of the spring telescopic rod.

[0011] Furthermore, a first magnet block is arranged at the top of the spring telescopic rod, a rotating connecting block is bonded to the bottom of the laser radar, a second magnet block is arranged at the bottom of the rotating connecting block, and the first magnet block and the second magnet block attract each other.

[0012] Furthermore, a connecting piece is fixedly arranged on the outer side of the spring telescopic rod, a connecting seat is arranged on the inner bottom surface of the turntable, and the connecting piece is butted against the connecting seat.

[0013] Furthermore, the connecting member includes a fixing ring and a plurality of L-shaped connecting rods evenly distributed outside the fixing ring, and the connecting seats are correspondingly arranged below the plurality of L-shaped connecting rods.

[0014] Furthermore, the spring telescopic rod includes an outer shell, a telescopic rod and a compression spring, the compression spring is arranged on the lower side of the inner shell, the lower end of the telescopic rod is arranged inside the outer shell and is located above the compression spring, a plurality of limit grooves are arranged on the upper inner wall of the outer shell, a plurality of limit strips are arranged on the circumference of the telescopic rod, and the plurality of limit strips are respectively located in the limit grooves.

[0015] Furthermore, an arc-shaped baffle is provided on one side of the bottom of the arc-shaped plate close to the center of the turntable for supporting the laser radar.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The rotary laser radar surveying and mapping device for landform surveying and mapping of the present invention optimizes the connection relationship between the laser radar and the turntable (turntable), and movably sets a plurality of arc plates on the turntable to fix the laser radar. It is not only convenient to install and disassemble, but also can be applied to the installation of laser radars of different shapes and types, which is flexible and convenient, and has great benefits for industrial concentration.

[0018] 2. The present invention is a rotary laser radar surveying and mapping device for landform surveying, wherein a plurality of arc plates are threadedly connected to a lead screw through a connecting block, a motor drives a rotating shaft, and a second bevel gear drives a plurality of first bevel gears, so that a plurality of lead screws rotate, so that the plurality of arc plates can approach or move away from each other, and in addition, a spring is arranged outside the lead screw, so that the plurality of arc plates can clamp and fix the laser radar.

[0019] 3. The present invention is a rotary laser radar surveying and mapping device for landform surveying, wherein the turntable and the base are connected by a rotating shaft and two bearings, and the upper part of the rotating shaft is a spring telescopic rod. When installing the laser radar, first turn on the motor switch to make the multiple arc plates move away from each other, and then place the laser radar in the middle of the multiple arc plates so that the second magnet block under the bottom rotating connecting block contacts and attracts the first magnet block at the top of the spring telescopic rod, and the laser radar is pressed downward to make the spring telescopic rod retract downward. At this time, the second bevel gear is disengaged from the multiple first bevel gears, and the multiple arc plates move toward the center under the use of the spring, thereby clamping and fixing the laser radar; in addition, while the spring telescopic rod retracts downward, the connecting piece on its outer side docks with the connecting seat, thereby fixing the rotating shaft and the turntable. At this time, the rotation of the rotating shaft can drive the turntable and the laser radar to rotate, which is convenient for surveying and mapping.

[0020] 4. In the rotary laser radar surveying and mapping device for topographic surveying and mapping of the present invention, in the spring telescopic rod, the compression spring is located on the lower side of the inner shell, the telescopic rod is located above the compression spring, and a plurality of limit strips are arranged around the telescopic rod, which are connected with a plurality of limit grooves on the upper inner wall of the shell, so that when the rotating shaft rotates, under the action of the limit strips, the spring telescopic rod can be ensured to rotate, thereby providing torque for the second bevel gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0022] Figure 2 is a cross-sectional view of embodiment 1 of the present invention;

[0023] Figure 3 yes Figure 2 A magnified view of the part A in the middle;

[0024] Figure 4 is a schematic structural diagram of a rotating connection block in Embodiment 1 of the present invention;

[0025] Figure 5 is a cross-sectional view of the spring telescopic rod in Example 1 of the present invention;

[0026] Figure 6 It is a cross-sectional view of the damping stretch rod in Example 2 of the present invention.

[0027] In the figure: 1-base, 2-turntable, 3-arc plate, 4-groove, 5-screw, 6-first bevel gear, 7-second bevel gear, 8-spring, 9-motor, 10-bearing, 11-fixed rod, 12-spring telescopic rod, 13-first magnet block, 14-second magnet block, 15-fixed part, 16-rotating part, 17-double-sided tape, 18-connecting seat, 19-fixed ring, 20-L-shaped connecting rod, 21-housing, 22-telescopic rod, 23-compression spring, 24-limiting groove, 25-limiting strip, 26-arc baffle, 27-cylinder, 28-inner rod, 29-convex strip, 30-trough body. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0029] Example 1

[0030] like Figures 1 to 5As shown, a rotary laser radar surveying and mapping device for landform surveying and mapping is a vehicle-mounted surveying and mapping device, which mainly includes a base 1, a turntable 2, a laser radar and a laser radar mounting member, the turntable 2 is rotatably arranged on the base 1, the laser radar mounting member is arranged on the turntable 2, and the laser radar is arranged in the laser radar mounting member; the laser radar mounting member includes a plurality of arc plates 3, the arc lines of the plurality of arc plates 3 or their extensions form a circle, the upper surface of the turntable 2 is provided with a plurality of grooves 4, and the plurality of grooves 4 are evenly arranged radially along the center of the turntable 2, A screw rod 5 is arranged in each of the grooves 4, a connecting block is threadedly connected to the screw rod 5, the arc plate 3 is arranged on the connecting block, a first bevel gear 6 is arranged at one end of each of the screw rods 5 close to the center of the turntable 2, a vertical hole is arranged at the center of the turntable 2, a rotating shaft is arranged in the vertical hole, a second bevel gear 7 is arranged at the upper end of the rotating shaft, and multiple first bevel gears 6 are meshed with the second bevel gear 7; a spring 8 is connected to the inner side of one end of each of the grooves 4 away from the center of the turntable 2, the spring 8 is sleeved on the outside of the screw rod 5, and the other end is connected to the connecting block.

[0031] The lower end of the rotating shaft passes through the turntable 2 and enters the base 1, and is connected to the output shaft of the motor 9 in the base 1. A push switch (starts when pressed and closes when released) is set on the base 1, and the push switch is connected to the motor 9 wire.

[0032] Specifically, a bearing groove is provided at the bottom center of the turntable 2 and the top center of the base 1 , and bearings 10 are embedded in the two bearing grooves, and the rotating shaft is fixed in the two bearings 10 .

[0033] The rotating shaft is composed of a fixed rod 11 and a spring telescopic rod 12, the bottom end of the spring telescopic rod 12 is connected to the top end of the fixed rod 11, the spring telescopic rod 12 is located on the upper side of the bearing at the bottom of the turntable 2, and the second bevel gear 7 is arranged on the top of the spring telescopic rod 12.

[0034] A first magnet block 13 is disposed at the top of the spring telescopic rod 12, a rotating connection block is bonded to the bottom of the laser radar, a second magnet block 14 is disposed at the bottom of the rotating connection block, and the first magnet block 13 and the second magnet block 14 attract each other. The rotating connection block includes a fixed portion 15 and a rotating portion 16, the fixed portion 15 and the rotating portion 16 are rotatably connected, a double-sided adhesive tape 17 is disposed on the top surface of the fixed portion 15, and it is convenient to fix it on the bottom of the laser radar, that is, the rotating connection block is an independent auxiliary component, and a second magnet block 14 is disposed on the bottom surface of the rotating portion 16.

[0035] A connecting piece is fixedly arranged on the outside of the spring telescopic rod, and a connecting seat 18 is arranged on the inner bottom surface of the turntable 2, and the connecting piece is docked with the connecting seat 18; the connecting piece includes a fixing ring 19 and two L-shaped connecting rods 20 evenly distributed on the outside of the fixing ring 19, and the connecting seat 18 is correspondingly arranged under the two L-shaped connecting rods 20.

[0036] The spring telescopic rod includes a shell 21, a telescopic rod 22 and a compression spring 23. The compression spring 23 is arranged on the lower side of the shell 21. The lower end of the telescopic rod 22 is arranged inside the shell 21 and is located above the compression spring 23. A plurality of limit grooves 24 are arranged on the upper inner wall of the shell 21. A plurality of limit strips 25 are arranged around the telescopic rod 22. The plurality of limit strips 25 are respectively located in the limit grooves 24.

[0037] An arc-shaped baffle 26 is provided on one side of the bottom of the arc-shaped plate 3 close to the center of the turntable 2 for supporting the laser radar.

[0038] The working principle of the rotary laser radar surveying and mapping device used for landform surveying and mapping in the embodiment of the present invention is as follows:

[0039] When installing the laser radar on the turntable 2, first turn on the push-type switch of the motor 9 to make the multiple arc plates 3 move away from each other. At this time, the spring 8 is in a compressed state. Release the push-type switch, and then place the laser radar in the middle of the multiple arc plates 3 so that the second magnet block 14 under the rotating connecting block at the bottom is in contact with the first magnet block 13 at the top of the spring telescopic rod 12, and then press the laser radar downward to make the spring telescopic rod 12 contract downward. At this time, the second bevel gear 7 is disengaged from the multiple first bevel gears 6, and the multiple arc plates 3 move toward the center under the use of the spring 8 (at this time, the screw rod will rotate in the opposite direction, because there is no transmission relationship between the screw rod and the rotating shaft, and the screw rod rotation resistance is small), thereby The laser radar is clamped and fixed (under the joint action of multiple springs on the circumferential side, the bottom magnet block and the bottom compression spring, the fixing stability is good); in addition, when the spring telescopic rod is retracted downward, the connecting piece on its outer side is docked with the connecting seat 18 (specifically, multiple L-shaped connecting rods are respectively inserted into the connecting seat), so that the rotating shaft and the turntable are fixedly connected in the horizontal direction. At this time, the rotation of the rotating shaft can drive the turntable 2 and the laser radar to rotate, which is convenient for surveying and mapping; when the laser radar needs to be disassembled or replaced, the push switch of the motor 9 is turned on to make the multiple arc plates 3 move away from each other, the laser radar is removed, the spring telescopic rod is extended, and the second bevel gear 7 is meshed with the multiple first bevel gears 6, which is convenient for the installation of the new laser radar. In addition, the present invention uses a drive motor and a rotating shaft to realize the installation and clamping of the laser radar and the rotation of the laser radar. The two processes do not affect each other, which greatly reduces the overall weight of the device and the production and processing costs.

[0040] Example 2

[0041] like Figure 6 As shown, the rotary laser radar surveying and mapping device for terrain surveying and mapping in the embodiment of the present invention is different from the embodiment 1 in that: the spring telescopic rod in the embodiment 1 is replaced by a damping stretching rod, the damping stretching rod comprises a cylinder 27 and an inner rod 28, a plurality of convex strips 29 are evenly arranged on the circumference of the inner rod 28, a plurality of grooves 30 are arranged on the inner side of the cylinder 27, damping pads are arranged on the inner walls on both sides of the grooves 30, and the plurality of convex strips 29 are respectively clamped in the grooves 30, and can damp sliding.

[0042] In the embodiment of the present invention, a damping stretch rod is used. On the one hand, it can rotate under the action of the convex strip 29 and the groove body 30. On the other hand, when installing the laser radar, it can be pressed to disengage the second bevel gear 7 from the first bevel gear 6. When disassembling the laser radar, since the bottom of the laser radar is connected to the damping stretch rod through a magnet, the damping stretch rod can be lengthened to make the second bevel gear 7 mesh with the first bevel gear 6 to meet subsequent installation needs.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art can still modify or make equivalent substitutions to the specific implementations of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention are within the scope of protection of the claims of the present invention.

Claims

1. A rotating laser radar surveying and mapping device for landform surveying and mapping, characterized in that: It includes a base, a turntable, a laser radar and a laser radar mounting component, the turntable is rotatably arranged on the base, the laser radar mounting component is arranged on the turntable, and the laser radar is arranged in the laser radar mounting component; the laser radar mounting component includes a plurality of arc plates, the arc lines of the plurality of arc plates or their extensions form a circle, a plurality of grooves are arranged on the upper surface of the turntable, and the plurality of grooves are evenly arranged radially along the center of the turntable, a screw rod is arranged in each of the grooves, a connecting block is threadedly connected to the screw rod, the arc plate is arranged on the connecting block, a first bevel gear is arranged at one end of each screw rod close to the center of the turntable, a vertical hole is arranged in the center of the turntable, a rotating shaft is arranged in the vertical hole, a second bevel gear is arranged on the upper end of the rotating shaft, and a plurality of the first bevel gears are all meshed with the second bevel gears.

2. The rotary laser radar surveying and mapping device for landform surveying and mapping according to claim 1 is characterized in that: A spring is connected to the inner side of one end of each groove away from the center of the rotating disk. The spring is sleeved on the outside of the screw rod, and the other end is connected to the connecting block.

3. The rotary laser radar surveying and mapping device for landform surveying and mapping according to claim 2 is characterized in that: The lower end of the rotating shaft passes through the rotating disk and enters the base, and is connected to the output shaft of the motor in the base. A push switch is arranged on the base, and the push switch is connected to the motor lead.

4. The rotary laser radar surveying and mapping device for landform surveying and mapping according to claim 3 is characterized in that: The bottom of the turntable and the center of the top of the base are both provided with bearing grooves, bearings are embedded in the bearing grooves, and the rotating shaft is fixed in the two bearings.

5. The rotary laser radar surveying and mapping device for landform surveying and mapping according to claim 4 is characterized in that: The rotating shaft is composed of a fixed rod and a spring telescopic rod, the bottom end of the spring telescopic rod is connected to the top end of the fixed rod, the spring telescopic rod is located on the upper side of the bearing at the bottom of the turntable, and the second bevel gear is arranged on the top of the spring telescopic rod.

6. The rotary laser radar surveying and mapping device for landform surveying and mapping according to claim 5, characterized in that: A first magnet block is arranged at the top of the spring telescopic rod, a rotating connection block is bonded to the bottom of the laser radar, a second magnet block is arranged at the bottom of the rotating connection block, and the first magnet block and the second magnet block attract each other.

7. The rotary laser radar surveying and mapping device for landform surveying and mapping according to claim 6 is characterized in that: A connecting piece is fixedly arranged on the outer side of the spring telescopic rod, a connecting seat is arranged on the inner bottom surface of the rotating disk, and the connecting piece is butted against the connecting seat.

8. The rotary laser radar surveying and mapping device for landform surveying and mapping according to claim 7, characterized in that: The connecting member comprises a fixing ring and a plurality of L-shaped connecting rods evenly distributed outside the fixing ring, and the connecting seats are correspondingly arranged below the plurality of L-shaped connecting rods.

9. The rotary laser radar surveying and mapping device for landform surveying and mapping according to claim 6, characterized in that: The spring telescopic rod includes a shell, a telescopic rod and a compression spring, wherein the compression spring is arranged on the lower side of the shell, the lower end of the telescopic rod is arranged inside the shell and is located above the compression spring, a plurality of limit grooves are arranged on the inner wall of the upper side of the shell, a plurality of limit strips are arranged around the telescopic rod, and the plurality of limit strips are respectively located in the limit grooves.

10. The rotary laser radar surveying and mapping device for landform surveying and mapping according to claim 1, characterized in that: An arc-shaped baffle is arranged on one side of the bottom of the arc-shaped plate close to the center of the turntable for supporting the laser radar.

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