Automatic calibrating device of handheld laser range finder

Abstract

The utility model belongs to the technical field of laser range finder verification, and discloses an automatic verification device of a handheld laser range finder, which comprises a verification table, a mounting groove is arranged on the right side of the verification table, and a rotating shaft is rotatably arranged on the inner wall of the mounting groove. The surface of the rotating shaft is fixedly connected with a plurality of reflecting plates at different angles; and the left side of the verification platform is provided with a clamping mechanism for fixing a handheld laser range finder. According to the utility model, when the laser range finder is fixed on the verification platform, the rotation of the first gear can be controlled and driven, the rotation shaft is further driven to rotate by the second gear, the first reflecting plate on the leftmost side is rotated to a vertical state for the first verification of the laser range finder, and then the rotation shaft is controlled to subsequently rotate by the same angle. And the other reflecting plates on the right side are in a vertical state and then are automatically calibrated step by step, so that the calibration can be realized without adding a plurality of electrical equipment, and the production cost of the device is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser rangefinder verification, and particularly relates to an automatic verification device for a handheld laser rangefinder. Background Technique

[0002] A handheld laser rangefinder, abbreviated as a rangefinder, is an instrument that uses modulated laser to measure the distance to a target. With its characteristics of small volume, light weight, fast and accurate measurement, simple operation, and convenient carrying, it has been widely used in the engineering and industrial fields in recent years, especially widely used in the field of building construction, and can measure distance, area, and volume.

[0003] According to the patent with the patent number CN221078934U, an automatic verification device for a handheld laser rangefinder is disclosed, belonging to the technical field of automatic verification of laser rangefinders. The automatic verification device for a handheld laser rangefinder includes a support frame and an installation table. The verification mechanism includes a handheld laser rangefinder main body, and the handheld laser rangefinder main body is arranged inside the support frame. Through the mutual cooperation of the handheld laser rangefinder main body, a reflector, a limiting groove, a threaded rod, a laser head, and an electric telescopic rod, the utility model first inserts the handheld laser rangefinder main body into the inside of the limiting groove for limiting, starts the handheld laser rangefinder main body, makes the laser head automatically verify the reflector, and then gradually and automatically verifies the reflectors behind the first reflector in turn, and automatically records, so that multiple reflectors can be automatically verified without errors, and the result of the verification of the handheld laser rangefinder main body can be improved.

[0004] Although the above disclosed device can gradually and automatically verify the reflectors behind the first reflector in turn and automatically record, since each reflector will be installed and controlled by a separate electric telescopic rod, it is necessary to frequently control each switch during actual operation, and it also increases the production cost of the device, thus reducing the practicability of the device. Therefore, we provide an automatic verification device for a handheld laser rangefinder to solve the above problems. Content of the Utility Model

[0005] To solve the problems raised in the above background technique, the utility model provides an automatic verification device for a handheld laser rangefinder.

[0006] To achieve the above object, the utility model provides the following technical solution: an automatic verification device for a handheld laser rangefinder, including a verification table, an installation groove is opened on the right side of the verification table, a rotating shaft is rotatably arranged on the inner wall of the installation groove, and a plurality of reflectors at different angles are fixedly connected to the surface of the rotating shaft. A clamping mechanism for fixing the handheld laser rangefinder is arranged on the left side of the verification table, and support columns are arranged at the four corners of the bottom surface of the verification table.

[0007] In the above technical solution, preferably, the clamping mechanism includes two clamping plates and two sliding grooves. Both of the two sliding grooves are formed in the verification table. A placing table is arranged between the two sliding grooves. The two clamping plates are respectively slidably arranged in the two sliding grooves. First compression springs are fixedly connected to the inner walls of the two sliding grooves, and one end of each first compression spring is connected to the surface of the corresponding clamping plate.

[0008] In the above technical solution, preferably, the clamping mechanism further includes an installation cavity and a push plate. The installation cavity is formed in the left side surface of the verification table and is communicated with the two sliding grooves. The push plate is arranged on the left side of the verification table and is adapted to the installation cavity. The bottom ends of the two clamping plates are respectively hinged with connecting rods, and the left ends of the two connecting rods are hinged to the push plate.

[0009] In the above technical solution, preferably, a motor is fixedly connected to the middle of the push plate, and the right end of the motor penetrates through the installation cavity and slides into the verification table. A second compression spring guide rod is sleeved on the surface of the motor, and the second compression spring guide rod is fixedly connected between the inner wall of the installation cavity and the surface of the push plate.

[0010] In the above technical solution, preferably, is installed on the right side surface of the verification table. The output end of extends into the installation groove and is fixedly connected with a first gear. A second gear is fixedly connected to the right end of the rotating shaft, and the second gear meshes with the first gear.

[0011] In the above technical solution, preferably, a protective plate is detachably arranged on the verification table, and the protective plate is arranged on the installation groove. A plurality of guiding grooves adapted to the reflecting plate are formed in the protective plate.

[0012] In the above technical solution, preferably, the support column includes a stud and an internal screw tube. The stud is fixedly connected to the bottom surface of the verification table, and the internal screw tube is threadedly sleeved on the bottom end of the stud.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the cooperation of the reflecting plate, the protective plate, the installation groove, the rotating shaft, the second gear, the first gear, etc., after the laser rangefinder is fixed on the verification table, the rotation of the first gear can be controlled, further enabling the second gear to drive the rotating shaft to rotate, so that the leftmost first reflecting plate rotates to a vertical state for the first verification of the laser rangefinder, and then the rotating shaft is controlled to rotate the same angle subsequently, making the remaining reflecting plates on the right side in a vertical state and then gradually performing automatic verification. This can be achieved without adding multiple electrical devices, and only by controlling the switch of the motor, effectively reducing the production cost of the device and thus improving the practicability of the device.

[0015] 2. With the clamping mechanism provided, the utility model can push the push plate to move to the right, so that the two connecting rods push the two clamping plates away from each other. Then, the laser rangefinder is placed between the two clamping plates. Finally, when the pushing of the push plate is released, under the elastic force of the first compression spring, the two clamping plates can automatically clamp and fix the laser rangefinder. When it is necessary to release the fixation of the laser rangefinder, it is only necessary to push the push plate to move to the right to make the two clamping plates move away from each other, and then the personnel can directly take out the laser rangefinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the utility model;

[0017] Figure 2 is a schematic internal structure diagram of the installation groove of the utility model;

[0018] Figure 3 is a partial top view sectional view of the utility model;

[0019] Figure 4 is a schematic bottom view structure diagram of the utility model;

[0020] Figure 5 is a schematic structural diagram of the clamping mechanism of the utility model.

[0021] In the figure: 1, verification table; 2, reflector; 3, protection plate; 4, installation groove; 5, rotating shaft; 6, installation cavity; 7, sliding groove; 8, stud; 9, internal screw tube; 10, push plate; 11, clamping plate; 12, second gear; 13, first gear; 14, first compression spring; 15, connecting rod; 16, second compression spring; 17, guide rod; 18, motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Such as Figures 1 to 5As shown in the figure, the present utility model provides an automatic calibration device for a handheld laser rangefinder, including a calibration table 1. An installation groove 4 is opened on the right side of the calibration table 1. A rotating shaft 5 is rotatably arranged on the inner wall of the installation groove 4. A plurality of reflecting plates 2 at different angles are fixedly connected to the surface of the rotating shaft 5. A clamping mechanism for fixing the handheld laser rangefinder is arranged on the left side of the calibration table 1. Support columns are arranged at the four corners of the bottom surface of the calibration table 1. The machinery, parts, and equipment in this device all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0024] As Figure 1 and Figure 5 shown, the clamping mechanism includes two clamping plates 11 and two sliding grooves 7. The two sliding grooves 7 are both opened on the calibration table 1. A placement table is arranged between the two sliding grooves 7. The two clamping plates 11 are respectively slidably arranged in the two sliding grooves 7. The inner walls of the two sliding grooves 7 are fixedly connected with first compression springs 14, and one end of each first compression spring 14 is connected to the surface of the clamping plate 11. With the above structure, the laser rangefinder can be directly placed on the placement table between the two sliding grooves 7, and then the two clamping plates 11 are used to clamp and fix the laser rangefinder, making the operation more convenient.

[0025] As Figure 1 , Figure 3 and Figure 5 shown, the clamping mechanism further includes an installation cavity 6 and a push plate 10. The installation cavity 6 is opened on the left side surface of the calibration table 1, and the installation cavity 6 communicates with the two sliding grooves 7. The push plate 10 is arranged on the left side of the calibration table 1 and is adapted to the installation cavity 6, enabling the push plate 10 to slide in the installation cavity 6. The bottom ends of the two clamping plates 11 are respectively hinged with connecting rods 15, and the left ends of the two connecting rods 15 are hinged on the push plate 10. With the above structure, it is convenient for personnel to operate and fix the laser rangefinder. During specific operation, only need to push the push plate 10 to move to the right, so that the two connecting rods 15 push the two clamping plates 11 to move away from each other. Then place the laser rangefinder between the two clamping plates 11. Finally, release the push on the push plate 10, and under the elastic force of the first compression spring 14, the two clamping plates 11 will automatically clamp and fix the laser rangefinder. When it is necessary to release the fixation of the laser rangefinder, also only need to push the push plate 10 to move to the right, so that the two clamping plates 11 move away from each other, and then the personnel can directly take out the laser rangefinder.

[0026] As Figure 3 and Figure 5As shown in the figure, a motor 17 is fixedly connected to the middle of the push plate 10, and the right end of the motor 17 penetrates through the installation cavity 6 and slides into the calibration table 1. When the push plate 10 is pushed to move, the second compression spring guide rod 16 will also be inserted into the calibration table 1 for sliding. The surface of the motor 17 is sleeved with the second compression spring guide rod 16, and the second compression spring guide rod 16 is fixedly connected between the inner wall of the installation cavity 6 and the surface of the push plate 10. Through the setting of the second compression spring guide rod 16 and the motor 17, the push plate 10 plays a guiding role when being pushed, avoiding the random swing of the push plate 10, and also improving the clamping stability of the two clamping plates 11 on the laser rangefinder.

[0027] As Figure 2 and Figure 4 shown in the figure, a component 18 is installed on the right side surface of the calibration table 1. The output end of the component 18 extends into the installation groove 4 and is fixedly connected with a first gear 13. The right end of the rotating shaft 5 is fixedly connected with a second gear 12, and the second gear 12 meshes with the first gear 13. Through the setting of the above structure, it is convenient to control the rotation of the component 18 to enable the first gear 13 to drive the second gear 12 to rotate, further controlling the rotation of the rotating shaft 5 and the reflector 2, making the operation more flexible and convenient, and also reducing the production cost of the device.

[0028] As Figure 1 shown in the figure, a protective plate 3 is detachably arranged on the calibration table 1, and the protective plate 3 is arranged on the installation groove 4. Specifically, the four corners of the protective plate 3 can be fixed on the calibration table 1 through screws. A plurality of guiding grooves adapted to the reflector 2 are opened on the protective plate 3. Through the setting of the protective plate 3, it can play a shielding role for the rotating components in the installation groove 4, avoiding the exposure of the rotating components in the installation groove 4, and enabling the reflector 2 to slide normally in the guiding grooves on the protective plate 3 as the rotating shaft 5 rotates.

[0029] As Figure 1 , Figure 3 and Figure 4 shown in the figure, the support column includes a stud 8 and an internal screw tube 9. The stud 8 is fixedly connected to the bottom surface of the calibration table 1, and the internal screw tube 9 is threadedly sleeved at the bottom end of the stud 8. Through the setting of the stud 8 and the internal screw tube 9, it is convenient for personnel to adjust the level of the calibration table 1, so that the laser rangefinder placed on the calibration table 1 has good levelness, and a level gauge (not shown in the figure) is arranged in the middle of the calibration table 1.

[0030] Working principle and usage process of the present utility model: First, push the push plate 10 to move to the right, so that the two connecting rods 15 push the two clamping plates 11 away from each other. Then, place the laser rangefinder between the two clamping plates 11. Finally, release the push on the push plate 10. Then, under the elastic force of the first compression spring 14, the two clamping plates 11 will automatically clamp and fix the laser rangefinder. Then, the operator controls the rotation of the first gear 13 by 18, further causing the second gear 12 to drive the rotating shaft 5 to rotate, so that the leftmost first reflector 2 rotates to a vertical state for the first calibration of the laser rangefinder, while the remaining reflectors 2 on the right are in an inclined state and will not cause an irradiation effect on the laser rangefinder. Then, control the rotating shaft 5 to rotate by the same subsequent angle, so that the remaining reflectors 2 on the right are in a vertical state and then gradually perform automatic calibration, which can be achieved without adding multiple electrical devices, effectively reducing the production cost of the device. When it is necessary to release the fixation of the laser rangefinder, only need to push the push plate 10 to move to the right, so that the two clamping plates 11 are away from each other, and then the operator can directly take out the laser rangefinder.

[0031] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The content not described in detail in the specification belongs to the prior art well-known to those of ordinary skill in the art.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic calibration device for a handheld laser rangefinder, comprising a calibration platform (1), characterized in that: The right side of the calibration platform (1) is provided with a mounting groove (4), the inner wall of the mounting groove (4) is rotatably provided with a rotating shaft (5), and the surface of the rotating shaft (5) is fixedly connected with a plurality of reflective plates (2) at different angles. The left side of the calibration platform (1) is provided with a clamping mechanism for fixing a handheld laser rangefinder, and the four corners of the bottom surface of the calibration platform (1) are provided with support columns.

2. The automatic calibration device for a handheld laser rangefinder according to claim 1, characterized in that: The clamping mechanism comprises two clamping plates (11) and two sliding grooves (7). The two sliding grooves (7) are both opened on the inspection platform (1). A placing platform is arranged between the two sliding grooves (7). The two clamping plates (11) are respectively slidably arranged in the two sliding grooves (7). The inner walls of the two sliding grooves (7) are both fixedly connected with a first compression spring (14), and one end of the first compression spring (14) is connected to the surface of the clamping plate (11).

3. The automatic calibration device for a handheld laser rangefinder according to claim 2, characterized in that: The clamping mechanism also includes an installation cavity (6) and a push plate (10). The installation cavity (6) is opened on the left side of the calibration platform (1), and the installation cavity (6) is connected with the two sliding grooves (7). The push plate (10) is arranged on the left side of the calibration platform (1), and the push plate (10) is adapted to the installation cavity (6). The bottom ends of the two clamping plates (11) are hinged with connecting rods (15), and the left ends of the two connecting rods (15) are hinged on the push plate (10).

4. The automatic calibration device for a handheld laser rangefinder according to claim 3, characterized in that: A motor (17) is fixedly connected to the middle of the push plate (10), and the right end of the motor (17) passes through the installation cavity (6) and slides into the calibration platform (1). A second compression spring guide rod (16) is sleeved on the surface of the motor (17), and the second compression spring guide rod (16) is fixedly connected between the inner wall of the installation cavity (6) and the surface of the push plate (10).

5. The automatic calibration device for a handheld laser rangefinder according to claim 1, characterized in that: The right side of the test platform (1) is installed with (18), the output end of the (18) extends into the installation groove (4) and is fixedly connected to the first gear (13), the right end of the rotating shaft (5) is fixedly connected to the second gear (12), and the second gear (12) is meshed with the first gear (13).

6. The automatic calibration device for a handheld laser rangefinder according to claim 1, characterized in that: The inspection platform (1) is provided with a detachable protection plate (3), which is arranged on the mounting groove (4), and the protection plate (3) is provided with a plurality of guide grooves adapted to the reflection plate (2).

7. The automatic calibration device for a handheld laser rangefinder according to claim 1, characterized in that: The support column comprises a stud (8) and an inner screw tube (9), wherein the stud (8) is fixedly connected to the bottom surface of the calibration platform (1), and the inner screw tube (9) is threadedly sleeved on the bottom end of the stud (8).

Images