Laser range finder calibration device

Abstract

The utility model discloses a laser range finder calibration device, which relates to the technical field of laser range finders and comprises a base, an adjusting mechanism is arranged above the base and comprises a supporting frame and a sliding plate, the supporting frame is fixedly connected with the base, a laser range finder body is placed on the upper surface of the supporting frame, and the sliding plate is slidably connected with the base. Scale marks are arranged on the upper surface of the sliding plate. According to the utility model, when the laser range finder is calibrated, the overall length of the laser range finder calibration device can be adjusted as required, so that a worker can calculate the ranging precision of the laser range finder through multiple groups of calibration data at different positions, and laser range finders of different models and sizes can be limited and fixed; therefore, the accuracy of a calibration measurement result is improved, and meanwhile, after the laser range finder calibration device is used, the mobile end of the laser range finder calibration device can be stored, so that the space occupied by the laser range finder calibration device is reduced.

Description

Technical Field

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

[0002] A laser rangefinder is an instrument that uses a certain parameter of a modulated laser to calibrate and measure the distance to a target. Laser rangefinders need to be calibrated before leaving the factory. Calibration is a necessary process to ensure the accuracy of the laser rangefinder. Products that do not meet the accuracy standards can be screened out during calibration.

[0003] The existing patent document with authorization announcement number CN218886161U, by setting a clamping mechanism, can place laser rangefinders of different models on a carrier and clamp and fix them through the clamping mechanism, so as to ensure the stability of the laser rangefinder during calibration; the clamping mechanism is suitable for clamping laser rangefinders of different models, which improves the versatility of laser rangefinder calibration, but since the overall length of the laser rangefinder calibration device cannot be adjusted, the staff cannot calculate the ranging accuracy of the laser rangefinder through multiple sets of calibration data at different positions, and at the same time, in order to ensure that the calibration measures multiple sets of calibration data at different positions, some laser rangefinder calibration devices need to lengthen the overall length of the laser rangefinder calibration device, thereby increasing the space occupied; for this reason, we provide a laser rangefinder calibration device to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The purpose of the utility model is to provide a laser rangefinder calibration device in order to solve the above-mentioned problem, so as to solve the problem that the overall length of the laser rangefinder calibration device in the prior art cannot be adjusted.

[0006] (II) Technical solution

[0007] The utility model is realized through the following technical scheme: a laser rangefinder calibration device comprises a base, an adjustment mechanism is arranged above the base, the adjustment mechanism comprises a support frame and a slide plate, the support frame is fixedly connected to the base, a laser rangefinder body is placed on the upper surface of the support frame, the slide plate is slidably connected to the base, scale lines are opened on the upper surface of the slide plate, a reflector is fixedly connected to the upper surface of the slide plate, a connecting block is fixedly connected to the bottom surface of the slide plate, a threaded rod is threadedly connected to the inner wall of the connecting block, and a limiting mechanism for fixing the laser rangefinder body is arranged above the support frame.

[0008] Furthermore, the limiting mechanism includes two fixed blocks, two limiting plates and two connecting plates. The two fixed blocks are fixedly connected to the support frame. The inner walls of the two fixed blocks are slidably connected to two sliding rods. The sliding rods are fixedly connected to the limiting plates. The fixed blocks are fixed to the upper surface of the support frame. Pulling the limiting plates can drive the sliding rods to slide in the reserved holes on the fixed blocks.

[0009] Furthermore, a return spring is sleeved on the outer surface of each sliding rod, the return spring is fixedly connected to the fixed block, and the return spring is fixedly connected to the limit plate. In the utility model, the return spring is in a compressed state. Under its return action, it tends to drive the two return springs to move closer to each other, thereby achieving the limit fixation of the laser rangefinder body placed on the upper surface of the support frame, thereby improving the accuracy of the calibration measurement results.

[0010] Furthermore, the slide bar is fixedly connected to the connecting plate, and the side surfaces of the two limit plates close to each other are fixedly connected with anti-skid pads. The connecting plate can conveniently pull the two slide bars on the same side to move synchronously, thereby improving the convenience of clamping and fixing the laser rangefinder body. The anti-skid pad can increase the anti-skid effect when placing the laser rangefinder body, so that the laser rangefinder body will not be easily worn.

[0011] Furthermore, a servo motor is installed on the inner wall of the base, and the output shaft end of the servo motor is fixedly connected to the threaded rod. The servo motor is installed on the inner wall of the base. After the servo motor is connected to the municipal power supply and started, it can drive the threaded rod to rotate forward and reverse.

[0012] Furthermore, a support block is fixedly connected to the inner wall of the base, a bearing is inlaid on the inner wall of the support block, the outer surface of the threaded rod is fixedly connected to the inner ring of the bearing, the support block is fixed on the inner wall of the base, the bearing is inlaid in the inner wall of the support block and connected to the outer surface of the threaded rod, which can provide auxiliary support for the threaded rod, make the threaded rod more stable when rotating, reduce the resistance of the threaded rod when rotating, and avoid jamming and swinging of the threaded rod during use.

[0013] Furthermore, handles are fixedly connected to the front and back of the base, and the outer surface of each handle is provided with a protective cover. The handles can be used to conveniently carry the laser rangefinder calibration device. The protective cover is made of sponge material, which can improve the comfort during the process of carrying the laser rangefinder calibration device.

[0014] Furthermore, four through holes are opened on the upper surface of the base, and the inner wall of each through hole is equipped with a fixing bolt adapted to the through hole. The fixing bolt is passed through the through hole and then rotated, so as to achieve the limited fixation of the laser rangefinder calibration device after movement, thereby improving the stability during the calibration measurement process and ensuring the accuracy of the calibration measurement results.

[0015] The utility model provides a laser rangefinder calibration device, which has the following beneficial effects:

[0016] 1. By the coordinated arrangement among the base, the adjustment mechanism and the limit mechanism, the overall length of the laser rangefinder calibration device can be adjusted as needed when calibrating the laser rangefinder, so that the staff can calculate the ranging accuracy of the laser rangefinder through multiple sets of calibration data at different positions, and can limit and fix laser rangefinders of different models and sizes, thereby improving the accuracy of the calibration measurement results. At the same time, the mobile end of the laser rangefinder calibration device can be stored after use, thereby reducing the space occupied by the laser rangefinder calibration device.

[0017] 2. The utility model is provided with a servo motor, which can conveniently drive the threaded rod to rotate forward and reversely; a support block is provided, which can provide auxiliary support to the threaded rod, so that the threaded rod is more stable when rotating, avoiding the jamming and swinging of the threaded rod during use; a handle is provided, which can facilitate the transportation of the laser rangefinder calibration device; a through hole is provided, which can facilitate the limit fixation of the laser rangefinder calibration device, thereby improving the stability during the calibration measurement process and ensuring the accuracy of the calibration measurement result. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a bottom view schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 3 The local structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 4 The local structure of the utility model is shown in FIG. Figure 2 .

[0022]

Main component symbol description

[0023] 1. Base;

[0024] 2. Adjustment mechanism; 201. Support frame; 202. Slide plate; 203. Laser rangefinder body; 204. Scale line; 205. Reflection plate; 206. Connecting block; 207. Threaded rod;

[0025] 3. Limiting mechanism; 301. Fixed block; 302. Sliding rod; 303. Limiting plate; 304. Return spring; 305. Connecting plate; 306. Anti-slip pad;

[0026] 4. Servo motor; 5. Support block; 6. Handle; 7. Through hole. DETAILED DESCRIPTION

[0027] The embodiment of the utility model provides a laser rangefinder calibration device. When calibrating the laser rangefinder, the device can adjust the overall length of the laser rangefinder calibration device as needed, and can limit and fix laser rangefinders of different models and sizes. At the same time, after use, the mobile end of the laser rangefinder calibration device can be stored, thereby reducing the space occupied by the laser rangefinder calibration device.

[0028] See also Figures 1 to 4 The laser rangefinder calibration device includes a base 1. The front and back sides of the base 1 are fixedly connected with handles 6. The outer surface of each handle 6 is covered with a protective cover. The laser rangefinder calibration device can be conveniently carried by the handle 6. The protective cover is made of sponge material, which can improve the comfort during the transportation of the laser rangefinder calibration device.

[0029] Four through holes 7 are provided on the upper surface of the base 1, and the inner wall of each through hole 7 is equipped with a fixing bolt adapted to the through hole 7. The fixing bolt is passed through the through hole 7 and then rotated to achieve the limit fixation of the laser rangefinder calibration device after movement, thereby improving the stability during the calibration measurement process and ensuring the accuracy of the calibration measurement results.

[0030] An adjustment mechanism 2 is arranged above the base 1, and the adjustment mechanism 2 includes a support frame 201 and a slide plate 202. The support frame 201 is fixedly connected to the base 1, a laser rangefinder body 203 is placed on the upper surface of the support frame 201, and the slide plate 202 is slidably connected to the base 1. The support frame 201 is fixed to the upper surface of the base 1, the laser rangefinder body 203 is placed on the upper surface of the support frame 201, and the slide plate 202 can slide in the inner wall of the base 1.

[0031] The upper surface of the skateboard 202 is provided with scale lines 204, through which the moving distance of the skateboard 202 can be intuitively understood. The upper surface of the skateboard 202 is fixedly connected with a reflective plate 205, and the reflective plate 205 is fixed to the upper surface of the skateboard 202. The right side surface of the reflective plate 205 is located at the 0 scale of the scale line 204.

[0032] The bottom surface of the slide plate 202 is fixedly connected with a connecting block 206, and the inner wall of the connecting block 206 is threadedly connected with a threaded rod 207. When the threaded rod 207 rotates, it can drive the connecting block 206 to slide back and forth along the inner wall of the base 1, thereby driving the slide plate 202 to slide back and forth in the inner wall of the base 1.

[0033] A servo motor 4 is installed on the inner wall of the base 1. The output shaft end of the servo motor 4 is fixedly connected to the threaded rod 207. The servo motor 4 is installed on the inner wall of the base 1. After the servo motor 4 is connected to the municipal power supply and started, it can drive the threaded rod 207 to rotate forward and reverse.

[0034] The inner wall of the base 1 is fixedly connected to a support block 5, the inner wall of the support block 5 is inlaid with a bearing, the outer surface of the threaded rod 207 is fixedly connected to the inner ring of the bearing, the support block 5 is fixed to the inner wall of the base 1, the bearing is inlaid in the inner wall of the support block 5 and is connected to the outer surface of the threaded rod 207, which can provide auxiliary support for the threaded rod 207, make the threaded rod 207 more stable when rotating, reduce the resistance of the threaded rod 207 when rotating, and avoid jamming and swinging of the threaded rod 207 during use.

[0035] A limiting mechanism 3 for fixing the laser rangefinder body 203 is arranged above the support frame 201. The limiting mechanism 3 includes two fixed blocks 301, two limiting plates 303 and two connecting plates 305. The two fixed blocks 301 are fixedly connected to the support frame 201. The inner walls of the two fixed blocks 301 are slidably connected to two sliding rods 302, and the sliding rods 302 are fixedly connected to the limiting plates 303.

[0036] The fixing block 301 is fixed to the upper surface of the supporting frame 201 . Pulling the limiting plate 303 can drive the sliding rod 302 to slide in the reserved hole on the fixing block 301 .

[0037] The outer surface of each slide bar 302 is sleeved with a return spring 304, the return spring 304 is fixedly connected to the fixed block 301, and the return spring 304 is fixedly connected to the limit plate 303. In the utility model, the return spring 304 is in a compressed state. Under its return action, it tends to drive the two return springs 304 to move closer to each other, thereby achieving the limit fixation of the laser rangefinder body 203 placed on the upper surface of the support frame 201, thereby improving the accuracy of the calibration measurement result.

[0038] The slide bar 302 is fixedly connected to the connecting plate 305, and the side surfaces of the two limit plates 303 that are close to each other are fixedly connected with anti-skid pads 306. The connecting plate 305 can conveniently pull the two slide bars 302 on the same side to move synchronously, thereby improving the convenience of clamping and fixing the laser rangefinder body 203. The anti-skid pads 306 can increase the anti-skid effect when placing the laser rangefinder body 203, so that the laser rangefinder body 203 will not be easily worn.

[0039] The components in the drawings of the present invention are only for style reference and are not used as specific size standards. The specific sizes are determined according to the actual requirements of production.

[0040] Working principle: When using the laser rangefinder calibration device, place the laser rangefinder body 203 on the upper surface of the support frame 201, and then clamp and fix the laser rangefinder body 203 through the limit mechanism 3, so as to improve the accuracy of the calibration measurement result, and then control the laser rangefinder body 203 to start, emit laser to irradiate the reflective plate 205, and reflect it back, so as to obtain the data in the initial state, and then control the threaded rod 207 to rotate, and after the threaded rod 207 rotates, it can drive the connecting block 206 to slide back and forth along the inner wall of the base 1, and then drive the slide plate 202 to slide back and forth in the inner wall of the base 1, and the slide plate 202 drives the reflective plate 205 to move, and the moving distance can be intuitively understood through the scale line 204, and then the laser rangefinder body 203 is controlled to start, emit laser to irradiate the reflective plate 205, and reflect it out, Therefore, the moving distance value is obtained according to the initial data and compared with the scale line 204, and each calibration measurement is performed in a single measurement mode, and five readings are taken, and the average value thereof is used as the measurement value, thereby reducing the error that may occur during the calibration measurement process. At the same time, after the calibration measurement is completed, the threaded rod 207 can be controlled to reverse, so that the slide plate 202 is stored in the base 1. When the laser rangefinder is calibrated, the utility model can adjust the overall length of the laser rangefinder calibration device as needed, so that the staff can calculate the distance measurement accuracy of the laser rangefinder through multiple sets of calibration data at different positions, and can limit and fix laser rangefinders of different models and sizes, thereby improving the accuracy of the calibration measurement result. At the same time, after use, the mobile end of the laser rangefinder calibration device can be stored, thereby reducing the space occupied by the laser rangefinder calibration device.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A laser rangefinder calibration device, comprising a base (1), characterized in that: An adjustment mechanism (2) is arranged above the base (1), the adjustment mechanism (2) comprising a support frame (201) and a slide plate (202), the support frame (201) is fixedly connected to the base (1), and a laser rangefinder body (203) is placed on the upper surface of the support frame (201); The slide plate (202) is slidably connected to the base (1); a scale mark (204) is provided on the upper surface of the slide plate (202); a reflector (205) is fixedly connected to the upper surface of the slide plate (202); a connecting block (206) is fixedly connected to the bottom surface of the slide plate (202); a threaded rod (207) is threadedly connected to the inner wall of the connecting block (206); and a limiting mechanism (3) for fixing the laser rangefinder body (203) is provided above the support frame (201).

2. The laser rangefinder calibration device according to claim 1, characterized in that: The limiting mechanism (3) comprises two fixed blocks (301), two limiting plates (303) and two connecting plates (305); the two fixed blocks (301) are fixedly connected to the support frame (201); the inner walls of the two fixed blocks (301) are slidably connected to two sliding rods (302); the sliding rods (302) are fixedly connected to the limiting plates (303).

3. The laser rangefinder calibration device according to claim 2, characterized in that: The outer surface of each sliding rod (302) is sleeved with a return spring (304), the return spring (304) is fixedly connected to the fixed block (301), and the return spring (304) is fixedly connected to the limit plate (303).

4. The laser rangefinder calibration device according to claim 2, characterized in that: The sliding rod (302) is fixedly connected to the connecting plate (305), and the side surfaces of the two limiting plates (303) close to each other are fixedly connected with anti-slip pads (306).

5. The laser rangefinder calibration device according to claim 1, characterized in that: A servo motor (4) is installed on the inner wall of the base (1), and the output shaft end of the servo motor (4) is fixedly connected to the threaded rod (207).

6. The laser rangefinder calibration device according to claim 1, characterized in that: A support block (5) is fixedly connected to the inner wall of the base (1), a bearing is inlaid on the inner wall of the support block (5), and the outer surface of the threaded rod (207) is fixedly connected to the inner ring of the bearing.

7. The laser rangefinder calibration device according to claim 1, characterized in that: The front and back sides of the base (1) are fixedly connected with handles (6), and the outer surface of each handle (6) is covered with a protective cover.

8. The laser rangefinder calibration device according to claim 1, characterized in that: Four through holes (7) are provided on the upper surface of the base (1), and the inner wall of each through hole (7) is equipped with a fixing bolt matched with the through hole (7).

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