Laser range finder calibration device

Abstract

The utility model belongs to the technical field of laser range finder calibration, and particularly relates to a laser range finder calibration device which comprises a device body, side plates arranged on two sides of the device body, supporting columns arranged on the periphery of the bottom of the device body, a connecting frame arranged between the supporting columns, a liquid tank arranged on the end face of the connecting frame, and an extension plate arranged on one side of the supporting column at the front end of the device body. A stabilizing frame is arranged between the extending plate and the supporting column, and the device body comprises a mounting groove, a sliding groove and a containing groove. According to the utility model, the distance measuring instrument limiting structure is arranged, so that the distance measuring calibration precision of the device is better; by arranging the environment limiting assembly, the rainwater and dust raising environment can be simulated, and the calibration precision and adaptability are improved; by arranging a distance measuring baffle structure, the baffle can be mounted and dismounted through a clamping groove and a clamping block, and replacement is more convenient and faster; the positioning structure is used for limiting the distance between the distance measuring baffle structure and the distance measuring instrument, and the calibration precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser rangefinder calibration, in particular to a laser rangefinder calibration device. Background Art

[0002] Laser rangefinder is an instrument that uses a certain parameter of modulated laser to measure the distance to the target. According to the distance measurement method, it is divided into phase method rangefinder and pulse method rangefinder. Pulse laser rangefinder emits a beam or a series of short pulse laser beams to the target when working. The laser beam reflected by the target is received by the photoelectric element. The timer measures the time from the emission to the reception of the laser beam and calculates the distance from the observer to the target. Phase method laser rangefinder detects the distance by detecting the phase difference between the emitted light and the reflected light when propagating in space. Laser rangefinder is light in weight, small in size, simple to operate, fast and accurate, and its error is only one-fifth to several hundredths of other optical rangefinders.

[0003] The prior art has the following deficiencies: the prior art publication number CN115113185A states that “a laser rangefinder calibration device” “includes a track, one end of which is fixedly connected to a fixing device for fixing the laser rangefinder, and the track is also provided with a plurality of sliding seats for laser ranging”;

[0004] During use of the above-mentioned device, the spring drives the end bracket to push the laser rangefinder onto the front baffle to achieve preliminary positioning, and then rotates the rotating rod, through a series of transmissions such as worm gears and worms, so that the two side wing brackets are simultaneously close to the center of the supporting plate to clamp the laser rangefinder, and finally achieve the purpose of quickly positioning the laser rangefinder; at the same time, the sliding seat can slide along the sliding rod within a certain range, so that people can adjust the distance between the sliding seat and the laser rangefinder, and several sliding seats are also provided. After the disc rotates, the laser can pass through the notch to the sliding seat at the rear, thereby quickly measuring multiple sets of data. The above-mentioned internal does not have environmentally limited energy supply, and can only calibrate the test effect of the rangefinder under normal conditions. The energy supply is single and does not have a distance adjustment function, so it is impossible to more reasonably test the test accuracy of the laser rangefinder at different distances. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a laser rangefinder calibration device to solve the existing problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser rangefinder calibration device, comprising a device body, side panels are arranged on both sides of the device body, pillars are arranged around the bottom of the device body, a connecting frame is arranged between the pillars, a liquid tank is arranged on the end face of the connecting frame, an extension plate is arranged on one side of the pillar at the front end of the device body, a stabilizing frame is arranged between the extension plate and the pillar, the device body comprises a mounting groove, a sliding groove and a receiving groove, an environment limiting component is arranged on the end face of the side plate located above the device body, a liquid pipe is connected between the liquid tank and the environment limiting component, a rangefinder limiting structure is arranged on the end face of the extension plate, a ranging baffle structure is arranged on the end face of the device body, and positioning structures are arranged on both sides of the ranging baffle structure;

[0007] The rangefinder limiting structure includes a bearing seat, a motor, a rotating groove, a turntable, a limiting base, a partition, an adjustment groove, a limiting plate, a contact end and an electric telescopic rod. A bearing seat is arranged above the extension plate, a motor is fixedly installed between the bottom of the bearing seat and the extension plate, and supporting parts can be arranged around it.

[0008] As a preferred technical solution of the utility model, a rotating groove is provided on the end face of the bearing seat, a rotating disk is movably connected inside the rotating groove, an axial hole is provided inside the rotating groove, a driving shaft is movably connected to the output end of the motor through a coupling and extends into the rotating groove through the axial hole, the driving shaft is connected to the bottom of the rotating disk, the top of the rotating disk is fixedly connected to a limited base, a partition is fixedly installed on one side of the top end face of the limited base, an adjusting groove is provided on the end face of the limited base, a limiting plate is provided inside the adjusting groove, the front end of the limiting plate is a contact end, and the contact end is an arc panel structure, electric telescopic rods are provided on both sides of the adjusting groove, and the ends of the electric telescopic rods are connected to the back of the limiting plate;

[0009] As a preferred technical solution of the utility model, an installation groove is provided on one side of the end face of the device body, and slide grooves are provided on both sides of the device body. The slide grooves are connected to the installation grooves. A receiving groove is provided on the end face of the device body below the environment limiting component, and dust and dirt can be filled in the receiving groove.

[0010] As a preferred technical solution of the utility model, the environment limiting component includes a dust plate, an air exhalation end, a spray plate and a spray end. The end faces of the side plates are located on both sides of the device body and are respectively fixedly installed with a dust plate and a spray plate. The dust plate is located on one side of the accommodating tank and a blower is fixedly installed inside. The inner wall of the dust plate is provided with an air exhalation end and is connected with the output end of the blower. An air inlet end is provided at the corresponding position of the dust plate. The bottom of the spray plate is connected to the liquid pump inside the liquid tank through a liquid pipe. The spray end is fixedly installed on the inner wall of the spray plate, and the spray end is composed of an atomizing nozzle group.

[0011] As a preferred technical solution of the utility model, the ranging baffle structure includes a slide, a mounting frame, an electric push rod, a slot, a baffle, a slot and a block. The slide is movably connected inside the mounting slot and there is a sliding connection between the two sides of the slide and the slide slot. The mounting frame is fixedly installed on the top end surface of the slide. The mounting frame is provided with a slot to form a concave structure. Baffles of the same size are arranged inside the slot. Slots are provided on both sides of the mounting frame. Blocks are fixedly connected on both sides of the baffle, and the size of the block is consistent with the size of the slot.

[0012] As a preferred technical solution of the utility model, the positioning structure is fixedly installed on the end surface of the device body and located on both sides of the installation groove. The positioning structure is provided with six groups and arranged in a rectangular array. The positioning structure is located behind the ranging baffle structure.

[0013] As a preferred technical solution of the utility model, the positioning structure includes a mounting seat, a positioning seat, a rotating groove, a mounting hole and a positioning rod. The mounting seats are fixedly installed on both sides of the end surface of the device body. The end surface of the mounting seat is provided with a rotating groove. The rotating groove is movably connected with a positioning seat. The positioning seat is provided with a mounting hole. The mounting hole is plugged with a positioning rod.

[0014] Compared with the prior art, the utility model provides a laser rangefinder calibration device, which has the following beneficial effects:

[0015] 1. The laser rangefinder calibration device is provided with a rangefinder limit structure, a rotating groove is provided on the end face of the bearing seat, a turntable is movably connected inside the rotating groove, an axial hole is provided inside the rotating groove, a driving shaft is movably connected to the output end of the motor through a coupling and extends into the rotating groove through the axial hole, the driving shaft is connected to the bottom of the turntable, the top of the turntable is fixedly connected to a limit base, a partition is fixedly installed on one side of the top end face of the limit base, an adjustment groove is provided on the end face of the limit base, a limit plate is provided inside the adjustment groove, the front end of the limit plate is a contact end, and the contact end is an arc Panel structure, electric telescopic rods are arranged on both sides of the adjustment slot, and the ends of the electric telescopic rods are connected to the back of the limit plate. The motor enables the turntable to rotate along the rotation slot, and then the electric telescopic rods in the adjustment slot move, so that the rangefinder can be installed between the two sets of limit plates and fit through the contact ends. Then the turntable is rotated to move the operating end of the rangefinder so that it is on the same horizontal plane as the distance baffle structure, and the back partition of the rangefinder can be fixed to prevent the rangefinder from sliding out. The above structures make the distance measurement calibration accuracy of the device better;

[0016] 2. The laser rangefinder calibration device is provided with an environment limiting component. A mounting groove is provided on one side of the end face of the device body. Slide grooves are provided on both sides of the device body. The slide grooves are connected to the mounting grooves. A receiving groove is provided on the end face of the device body located below the environment limiting component. The receiving groove can be filled with dust and dirt. The environment limiting component includes a dust raising plate, an air exhalation end, a spray plate and a spray end. The end faces of the side plates are located on both sides of the device body and are respectively fixedly installed with dust raising plates and spray plates. The dust raising plate is located on one side of the receiving groove and a blower is fixedly installed inside. The inner wall of the dust raising plate is provided with an air exhalation end and is connected to the output end of the blower. An air inlet is provided at the corresponding position of the dust raising plate. The bottom of the spray plate is connected to the liquid pump inside the liquid tank through a liquid pipe. The inner wall of the spray plate is fixedly installed with a spray end, which is composed of an atomizing nozzle group. Compared with the existing calibration device, the device uses the internal spray plate and the dust plate of the environment limiting component. The movement of the blower inside the dust plate can complete the exhalation through the exhalation end, driving the dust or dust filled in the containing tank to be blown out, simulating the sandstorm environment, so as to calibrate the operating state of the rangefinder in the sandstorm environment, thereby completing the calibration. At the same time, the spray end inside the spray plate is connected to the liquid tank through a liquid pipe, and can spray out atomized liquid to simulate the rainwater environment, so as to calibrate the operating state of the rangefinder in the rainwater environment.

[0017] 3. The laser rangefinder calibration device is provided with a rangefinder baffle structure, which includes a slide seat, a mounting frame, an electric push rod, a slot, a baffle, a slot and a block. The slide seat is movably connected inside the mounting slot and there is a sliding connection between the two sides of the slide seat and the slide slot. The mounting frame is fixedly installed on the top end surface of the slide seat. The mounting frame is provided with a slot inside to form a concave structure. Baffles of the same size are provided inside the slot. Slots are provided on both sides of the mounting frame. Blocks are fixedly connected on both sides of the baffle. The size of the block is consistent with that of the slot. The baffle can be installed and removed on the slot through the slot and the block, and replacement is more convenient and quick.

[0018] 4. The laser rangefinder calibration device is provided with a positioning structure, which is fixedly installed on the end face of the device body and located on both sides of the mounting groove. The positioning structure is provided with six groups and arranged in a rectangular array. The positioning structure is located behind the ranging baffle structure; the positioning structure includes a mounting seat, a positioning seat, a rotating groove, a mounting hole and a positioning rod. The mounting seats are fixedly installed on both sides of the end face of the device body, the end face of the mounting seat is provided with a rotating groove, the rotating groove is movably connected with the positioning seat, the positioning seat is provided with a mounting hole, and the mounting hole is plugged with a positioning rod, which is used to limit the distance between the ranging baffle structure and the rangefinder to improve the calibration accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a three-dimensional schematic diagram of the main structure of the device of the utility model;

[0021] Figure 3 It is a three-dimensional schematic diagram of the positioning structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the utility model at A;

[0023] Figure 5 This is a three-dimensional schematic diagram of the distance measuring baffle structure of the utility model;

[0024] Figure 6 It is a three-dimensional schematic diagram of the limiting structure of the rangefinder of the utility model;

[0025] Figure 7 This is a top view of the limiting structure of the rangefinder of the utility model;

[0026] Figure 8 It is a three-dimensional schematic diagram of the structure of the environment limiting component of the utility model.

[0027] In the figure: 1. device body; 101. mounting slot; 102. slide slot; 103. receiving slot; 2. side plate; 3. pillar; 4. connecting frame; 5. liquid tank; 6. liquid pipe; 7. environmental limiting component; 701. dust plate; 702. air exhalation end; 703. spray plate; 704. spray end; 8. extension plate; 9. stabilizing frame; 10. distance meter limit structure; 1001. bearing seat; 1002. motor; 1003. rotating slot; 1004. turntable; 1005. limit base; 1006, partition; 1007, adjustment slot; 1008, limit plate; 1009, contact end; 10010, electric telescopic rod; 11, ranging baffle structure; 1101, slide seat; 1102, mounting frame; 1103, electric push rod; 1104, slot; 1105, baffle; 1106, card slot; 1107, card block; 12, positioning structure; 1201, mounting seat; 1202, positioning seat; 1203, rotating slot; 1204, mounting hole; 1205, positioning rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-8In this embodiment: a laser rangefinder calibration device comprises a device body 1, side plates 2 are arranged on both sides of the device body 1, pillars 3 are arranged around the bottom of the device body 1, a connecting frame 4 is arranged between the pillars 3, a liquid tank 5 is arranged on the end face of the connecting frame 4, an extension plate 8 is arranged on one side of the pillar 3 at the front end of the device body 1, a stabilizing frame 9 is arranged between the extension plate 8 and the pillar 3, the device body 1 comprises a mounting groove 101, a slide groove 102 and a receiving groove 103, an environment limiting component 7 is arranged on the end face of the side plate 2 located above the device body 1, a liquid pipe 6 is connected between the liquid tank 5 and the environment limiting component 7, a rangefinder limiting structure 10 is arranged on the end face of the extension plate 8, a ranging baffle structure 11 is arranged on the end face of the device body 1, and positioning structures 12 are arranged on both sides of the ranging baffle structure 11;

[0030] Among them, the rangefinder limiting structure 10 includes a bearing seat 1001, a motor 1002, a rotating slot 1003, a turntable 1004, a limiting base 1005, a partition 1006, an adjustment slot 1007, a limiting plate 1008, a contact end 1009 and an electric telescopic rod 10010. The bearing seat 1001 is arranged above the extension plate 8, and the motor 1002 is fixedly installed between the bottom of the bearing seat 1001 and the extension plate 8, and supporting parts can be arranged around it.

[0031] In this embodiment, a rotating groove 1003 is provided on the end face of the bearing seat 1001, and a rotating disk 1004 is movably connected inside the rotating groove 1003. An axial hole is provided inside the rotating groove 1003. The output end of the motor 1002 is movably connected to a driving shaft through a coupling and extends into the rotating groove 1003 through the axial hole. The driving shaft is connected to the bottom of the rotating disk 1004. The top of the rotating disk 1004 is fixedly connected to a limiting base 1005. A partition plate 1006 is fixedly installed on one side of the top end face of the limiting base 1005. An adjusting groove 1007 is provided on the end face of the limiting base 1005. A limiting plate 1008 is provided inside the adjusting groove 1007. The front end of the limiting plate 1008 is a contact end 1009, and the contact end 1009 is an arc Panel structure, electric telescopic rods 10010 are arranged on both sides of the adjustment slot 1007, and the ends of the electric telescopic rods 10010 are connected to the back of the limit plate 1008. The turntable 1004 is rotated along the rotation slot 1003 by the motor 1002, and then the electric telescopic rod 10010 in the adjustment slot 1007 moves, so that the rangefinder can be installed between the two sets of limit plates 1008 and the fit is completed through the contact end 1009, and then the turntable 1004 is rotated to move the operating end of the rangefinder so that it is in the same horizontal plane with the ranging baffle structure 11, and the back partition 1006 of the rangefinder can be fixed to prevent the rangefinder from sliding out. The above structures make the distance measurement calibration accuracy of the device better;

[0032] In this embodiment, a mounting groove 101 is provided on one side of the end face of the device body 1, and slide grooves 102 are provided on both sides of the device body 1. The slide grooves 102 are connected to the mounting grooves 101. A receiving groove 103 is provided on the end face of the device body 1 below the environment limiting component 7, and the receiving groove 103 can be filled with dust and dust; the environment limiting component 7 includes a dust plate 701, an air exhalation end 702, a spray plate 703 and a spray end 704. The end faces of the side plates 2 are located on both sides of the device body 1 and are respectively fixedly installed with dust plates 701 and spray plates 703. The dust plate 701 is located on one side of the receiving groove 103 and a blower is fixedly installed inside. The inner side wall of the dust plate 701 is provided with an air exhalation end 702 and is connected to the output end of the blower. The dust plate 701 is provided with an inlet at the corresponding position At the wind end, the bottom of the spray plate 703 is connected to the liquid pump inside the liquid tank 5 through the liquid pipe 6, and the inner wall of the spray plate 703 is fixedly installed with a spray end 704, which is composed of an atomizing nozzle group. Compared with the existing calibration device, the device uses the spray plate 703 and the dust plate 701 inside the environment limiting component 7. The movement of the blower inside the dust plate 701 can complete the exhalation through the exhalation end 702, driving the dust or dust filled in the containing tank 103 to be blown out, simulating the sandstorm environment, so as to calibrate the operating state of the rangefinder in the sandstorm environment, thereby completing the calibration. At the same time, the spray end 704 inside the spray plate 703 is connected to the liquid tank 5 through the liquid pipe 6, and can spray out atomized liquid to simulate the rainwater environment, so as to calibrate the operating state of the rangefinder in the rainwater environment;

[0033] In this embodiment, the ranging baffle structure 11 includes a slide 1101, a mounting frame 1102, an electric push rod 1103, a slot 1104, a baffle 1105, a slot 1106 and a block 1107. The mounting slot 101 is movably connected to the slide 1101 and there is a sliding connection between the two sides of the slide 1101 and the slide 102. The top end surface of the slide 1101 is fixedly installed with the mounting frame 1102, the mounting frame 1102 is provided with a slot 1104 and forms a concave structure, the slot 1104 is provided with a baffle 1105 of the same size, the mounting frame 1102 is provided with slots 1106 on both sides, and the baffle 1105 is fixedly connected with the block 1107 on both sides. The size of the block 1107 is consistent with that of the slot 1106. The baffle 1105 can be installed and removed on the slot 1104 through the slot 1106 and the block 1107, and the replacement is more convenient and quick.

[0034] In this embodiment, the positioning structure 12 is fixedly installed on the end face of the device body 1 and is located on both sides of the mounting groove 101. The positioning structure 12 is provided with six groups and arranged in a rectangular array. The positioning structure 12 is located behind the ranging baffle structure 11; the positioning structure 12 includes a mounting seat 1201, a positioning seat 1202, a rotating groove 1203, a mounting hole 1204 and a positioning rod 1205. The mounting seats 1201 are fixedly installed on both sides of the end face of the device body 1. The end face of the mounting seat 1201 is provided with a rotating groove 1203. The rotating groove 1203 is movably connected with the positioning seat 1202. The positioning seat 1202 is provided with a mounting hole 1204. The mounting hole 1204 is plugged with a positioning rod 1205, which is used to limit the distance between the ranging baffle structure 11 and the rangefinder to improve the calibration accuracy.

[0035] The working principle and use process of the utility model are as follows: the turntable 1004 is rotated along the rotating groove 1003 by the motor 1002, and then the electric telescopic rod 10010 inside the adjusting groove 1007 moves, so that the rangefinder can be installed between the two sets of limit plates 1008 and the contact end 1009 completes the fit, and then the turntable 1004 is rotated to move the operating end of the rangefinder so that it is in the same horizontal plane with the ranging baffle structure 11, and the back partition 1006 of the rangefinder can be fixed to prevent the rangefinder from sliding out, and then the electric push rod 1103 is driven by the internal driving component of the device body 1 to move, so that the slide seat 1101 moves along the slide groove 102, so that the mounting frame 1102 and the baffle 11 05 is moved, and the distance is positioned through the positioning structure 12. The rangefinder is calibrated according to the data of the rangefinder combined with the position of the ranging baffle structure 11. During the above operation, the internal spray plate 703 and the dust plate 701 of the environment limiting component 7 can be used. The movement of the blower inside the dust plate 701 can complete the air exhalation through the air exhalation end 702, driving the dust or dust filled in the containing tank 103 to be blown out, simulating the wind and sand environment, so as to calibrate the operating state of the rangefinder in the wind and sand environment, thereby completing the calibration. At the same time, the internal spray end 704 of the spray plate 703 is connected with the liquid tank 5 through the liquid pipe 6, and can spray out atomized liquid to simulate the rain environment, so as to calibrate the operating state of the rangefinder in the rain environment.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A laser rangefinder calibration device, comprising a device body (1), side panels (2) are arranged on both sides of the device body (1), pillars (3) are arranged around the bottom of the device body (1), a connecting frame (4) is arranged between the pillars (3), a liquid tank (5) is arranged on the end surface of the connecting frame (4), an extension plate (8) is arranged on one side of the pillar (3) at the front end of the device body (1), and a stabilizing frame (9) is arranged between the extension plate (8) and the pillar (3), characterized in that: The device body (1) comprises a mounting groove (101), a sliding groove (102) and a receiving groove (103); an end surface of the side plate (2) is provided with an environment limiting component (7) located above the device body (1); a liquid pipe (6) is connected between the liquid tank (5) and the environment limiting component (7); an end surface of the extension plate (8) is provided with a rangefinder limiting structure (10); an end surface of the device body (1) is provided with a rangefinder baffle structure (11); and positioning structures (12) are provided on both sides of the rangefinder baffle structure (11); The rangefinder position-limiting structure (10) comprises a bearing seat (1001), a motor (1002), a rotating slot (1003), a rotating disk (1004), a position-limiting base (1005), a partition (1006), an adjustment slot (1007), a position-limiting plate (1008), a contact end (1009), and an electric telescopic rod (10010); the bearing seat (1001) is arranged above the extension plate (8); the motor (1002) is fixedly mounted between the bottom of the bearing seat (1001) and the extension plate (8), and support members can be arranged around the bearing seat (1001).

2. The laser rangefinder calibration device according to claim 1, characterized in that: The end surface of the bearing seat (1001) is provided with a rotation groove (1003), a rotating disk (1004) is movably connected to the inside of the rotation groove (1003), an axial hole is provided inside the rotation groove (1003), an output end of the motor (1002) is movably connected to a drive shaft through a coupling and extends into the inside of the rotation groove (1003) through the axial hole, the drive shaft is connected to the bottom of the rotating disk (1004), the top of the rotating disk (1004) is fixedly connected to a limited base (1005), and the limited base (1005) ) is fixedly mounted on one side of the top end face of the positioning base (1005), an adjustment groove (1007) is provided on the end face of the positioning base (1005), a positioning plate (1008) is provided inside the positioning groove (1007), a front end of the positioning plate (1008) is a contact end (1009), and the contact end (1009) is an arc panel structure, and electric telescopic rods (10010) are provided on both sides of the positioning groove (1007), and the ends of the electric telescopic rods (10010) are connected to the back of the positioning plate (1008).

3. The laser rangefinder calibration device according to claim 1, characterized in that: A mounting groove (101) is provided on one side of the end face of the device body (1), and slide grooves (102) are provided on both sides of the device body (1), the slide grooves (102) are connected to the mounting grooves (101), and a receiving groove (103) is provided on the end face of the device body (1) below the environment limiting component (7), and dust and dirt can be filled in the receiving groove (103).

4. The laser rangefinder calibration device according to claim 1, characterized in that: The environment limiting component (7) comprises a dust raising plate (701), an air exhalation end (702), a spray plate (703) and a spray end (704); the end surfaces of the side plate (2) are located on both sides of the device body (1) and are respectively fixedly mounted with the dust raising plate (701) and the spray plate (703); the dust raising plate (701) is located on one side of the containing tank (103) and is fixedly mounted with a blower inside; the inner side wall of the dust raising plate (701) is provided with an air exhalation end (702) which is connected to the output end of the blower; the corresponding position of the dust raising plate (701) is provided with an air inlet end; the bottom of the spray plate (703) is connected to the liquid pump inside the liquid tank (5) through a liquid pipe (6); the inner side wall of the spray plate (703) is fixedly mounted with the spray end (704); the spray end (704) is composed of an atomizing nozzle group.

5. The laser rangefinder calibration device according to claim 1, characterized in that: The distance measuring baffle structure (11) comprises a slide seat (1101), a mounting frame (1102), an electric push rod (1103), a slot (1104), a baffle (1105), a clamping slot (1106) and a clamping block (1107); the slide seat (1101) is movably connected inside the mounting slot (101) and there is a sliding connection between the two sides of the slide seat (1101) and the slide slot (102); the top end surface of the slide seat (1101) is fixedly mounted A mounting frame (1102) is provided, wherein a slot (1104) is provided inside the mounting frame (1102) to form a concave structure, a baffle (1105) of the same size is provided inside the slot (1104), a card slot (1106) is provided on both sides of the mounting frame (1102), a card block (1107) is fixedly connected to both sides of the baffle (1105), and the size of the card block (1107) is consistent with the size of the card slot (1106).

6. The laser rangefinder calibration device according to claim 1, characterized in that: The positioning structures (12) are fixedly mounted on the end surface of the device body (1) and are located on both sides of the mounting groove (101); six groups of the positioning structures (12) are arranged in a rectangular array; and the positioning structures (12) are located behind the ranging baffle structure (11).

7. The laser rangefinder calibration device according to claim 1, characterized in that: The positioning structure (12) comprises a mounting seat (1201), a positioning seat (1202), a rotation groove (1203), a mounting hole (1204) and a positioning rod (1205); the mounting seats (1201) are fixedly mounted on both sides of the end surface of the device body (1); the end surface of the mounting seat (1201) is provided with a rotation groove (1203); the positioning seat (1202) is movably connected inside the rotation groove (1203); the positioning seat (1202) is provided with a mounting hole (1204); and the mounting hole (1204) is plugged with the positioning rod (1205).

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