A hand-held surveying laser rangefinder calibrator

Abstract

This utility model relates to the technical field of laser rangefinder calibrators for surveying, and discloses a handheld laser rangefinder calibrator, including a calibrator body. Two first lenses are provided on one side of the calibrator body, and a second lens is provided on the other side. A connecting ring is fixedly connected to the side wall of the calibrator body, and a rope loop is provided inside the connecting ring. Multiple rubber strips are fixedly connected to the side wall of the calibrator body, and a notch is provided on the inner wall of the bottom end of the calibrator body. The standard instrument body provided by this utility model ensures calibration use. The first and second lenses facilitate observation of the standard instrument body. The lifting strap and rope loop facilitate stable handling of the calibrator body, while the rubber strips and rubber anti-slip pads improve the anti-slip effect on the side wall of the standard instrument body, enhance handheld stability, and prevent slippage.

Description

Technical Field

[0001] This utility model relates to the technical field of surveying laser rangefinder calibrators, and in particular to a handheld surveying laser rangefinder calibrator. Background Technology

[0002] A surveying laser rangefinder calibrator is an instrument used to calibrate and verify the accuracy of surveying laser rangefinders. It typically operates based on high-precision measurement standards and optical principles. It emits a laser signal at a known precise distance while simultaneously receiving the laser signal emitted by the laser rangefinder under test, comparing and analyzing the two signals. By measuring parameters such as the propagation time or phase change of the laser over the known distance, it determines the measurement error of the laser rangefinder under test, thereby calibrating its accuracy.

[0003] In the existing technology, handheld laser rangefinder calibrators are used to improve convenience during the use of surveying laser rangefinder calibrators. However, handheld laser rangefinder calibrators are small in size and have a smooth surface, which makes them difficult to hold stably and may slip from the hand. In addition, the lenses on the surface need to be replaced after a long period of use to ensure calibration accuracy. Furthermore, the small accessories of handheld laser rangefinder calibrators are not convenient to carry. Utility Model Content

[0004] The purpose of this invention is to solve the problems of existing handheld laser rangefinder calibrators, which are small in size and have a smooth surface, making them difficult to hold and prone to slipping out of the hand. They also require replacement of the surface lens after prolonged use to ensure calibration accuracy. Furthermore, the accessories of handheld laser rangefinder calibrators are small and inconvenient to carry. Therefore, this invention proposes a handheld laser rangefinder calibrator.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A handheld laser rangefinder calibrator includes a calibrator body. Two first lenses are provided on one side of the calibrator body, and a second lens is provided on the other side of the calibrator body. A connecting ring is fixedly connected to the side wall of the calibrator body, and a rope loop is provided inside the connecting ring. Multiple rubber strips are fixedly connected to the side wall of the calibrator body. A notch is opened in the inner wall of the bottom end of the calibrator body. A storage box is inserted into the inner wall of the calibrator body at the notch. A cover plate is fixedly connected to the side wall of the storage box. The cover plate is fitted against the side wall of the calibrator body at the notch. A handle is fixedly connected to the side wall of the cover plate.

[0007] Preferably, a lifting strap is fixedly connected to the top of the calibrator body, and a rubber anti-slip pad is fixedly connected to the side wall of the calibrator body.

[0008] Preferably, a sponge pad is fixedly connected to the inner wall of the bottom end of the storage box, and multiple slots are formed on the upper surface of the sponge pad.

[0009] Preferably, an insert plate is fixedly connected to the side wall of the cover plate, and the calibrator body has an insertion port on the inner wall of the recess. The insert plate is inserted into the inner wall of the insertion port, and a rectangular groove is formed on the inner wall of the insert plate.

[0010] Preferably, the insert plate is fixedly connected to the inner wall of the rectangular groove with a fixing rod. A clamping plate and a torsion spring are movably sleeved on the wall of the fixing rod. One end of the torsion spring is fixedly connected to the inner wall of the clamping plate, and the other end of the torsion spring is fixedly connected to the inner wall of the insert plate. The calibrator body has a fan-shaped slot on the inner wall of the insertion port, and the clamping plate extends to the inner wall of the fan-shaped slot.

[0011] Preferably, a pull rope is fixedly connected to the side wall of the card plate, and the end of the pull rope away from the card plate passes through the insert plate and the cover plate and is fixedly connected to a pull ring.

[0012] Compared with the prior art, this utility model provides a handheld surveying laser rangefinder calibrator, which has the following beneficial effects:

[0013] 1. This handheld laser rangefinder calibrator can be used for calibration by means of a standard instrument body. The first and second lenses facilitate observation of the standard instrument body. The lifting strap and rope loop facilitate stable handling of the calibrator body. The rubber strip and rubber anti-slip pads can improve the anti-slip effect on the side wall of the standard instrument body, improve handheld stability, and prevent slipping and dropping.

[0014] 2. This handheld surveying laser rangefinder calibrator, by inserting the spare lens into the sponge pad inside the storage box, and then inserting the storage box into the recess, enables the calibrator body to store accessories for easy replacement. The cover can close the recess, and the insertion plate is inserted into the recess, which can improve the stability of the cover at the recess.

[0015] 3. This handheld surveying laser rangefinder calibrator, after the insert plate is inserted into the socket, the torsion spring can push the plate to extend into the fan-shaped slot, which can improve the stability of the insert plate inside the socket and further improve the stability of the cover plate. Subsequently, pulling the pull ring can pull the pull rope to move, so that the plate retracts into the rectangular slot. Pulling the handle makes it easy to adjust the cover plate. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of a handheld surveying laser rangefinder calibrator proposed in this utility model;

[0017] Figure 2 This is a structural schematic diagram from another perspective of the handheld mapping laser rangefinder calibrator proposed in this utility model;

[0018] Figure 3 This is a partial structural cross-sectional view of a handheld mapping laser rangefinder calibrator proposed in this utility model;

[0019] Figure 4 for Figure 3 Enlarged structural diagram of part A in the middle section;

[0020] Figure 5 for Figure 3 A three-dimensional view of the structure of the storage box.

[0021] In the diagram: 1. Calibrator body, 2. First lens, 3. Second lens, 4. Lifting strap, 5. Connecting ring, 6. Rope loop, 7. Rubber strip, 8. Rubber anti-slip pad, 9. Storage box, 10. Cover plate, 11. Sponge pad, 12. Handle, 13. Insert plate, 14. Fixing rod, 15. Card plate, 16. Torsion spring, 17. Pull rope, 18. Pull ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5 A handheld laser rangefinder calibrator includes a calibrator body 1. Two first lenses 2 are provided on one side of the calibrator body 1, and a second lens 3 is provided on the other side of the calibrator body 1. A connecting ring 5 is fixedly connected to the side wall of the calibrator body 1, and a rope loop 6 is provided inside the connecting ring 5. Multiple rubber strips 7 are fixedly connected to the side wall of the calibrator body 1. A notch is opened on the inner wall of the bottom end of the calibrator body 1. A storage box 9 is inserted into the inner wall of the calibrator body 1 at the notch. A cover plate 10 is fixedly connected to the side wall of the storage box 9. The cover plate 10 is fitted to the side wall of the calibrator body 1 at the notch. A handle 12 is fixedly connected to the side wall of the cover plate 10.

[0024] A lifting strap 4 is fixedly connected to the top of the calibrator body 1, a rubber anti-slip pad 8 is fixedly connected to the side wall of the calibrator body 1, and a sponge pad 11 is fixedly connected to the bottom inner wall of the storage box 9. Multiple slots are provided on the upper surface of the sponge pad 11.

[0025] A plug plate 13 is fixedly connected to the side wall of the cover plate 10. The calibrator body 1 has an insertion port on the inner wall of the recess. The plug plate 13 is inserted into the inner wall of the insertion port. A rectangular groove is provided on the inner wall of the plug plate 13.

[0026] When in use, the standard instrument body 1 can ensure calibration, the first lens 2 and the second lens 3 facilitate observation of the standard instrument body 1, the lifting strap 4 and the rope loop 6 facilitate stable handling of the calibrator body 1, and the rubber strip 7 and the rubber anti-slip pad 8 can improve the anti-slip effect on the side wall of the standard instrument body 1, improve the stability of holding it, and prevent slipping and dropping.

[0027] Insert the spare lens into the sponge pad 11 inside the storage box 9, and then insert the storage box 9 into the inside of the recess. This allows the calibrator body 1 to have the function of storing accessories, which is convenient for subsequent replacement. The cover plate 10 can close the recess, and the insert plate 13 is inserted into the inside of the socket, which can improve the stability of the cover plate 10 at the recess.

[0028] To improve the stability of the insert plate 13 inside the socket, such as Figure 1-5 As shown, a fixing rod 14 is fixedly connected to the inner wall of the rectangular slot of the insertion plate 13. A clamping plate 15 and a torsion spring 16 are movably sleeved on the rod wall of the fixing rod 14. One end of the torsion spring 16 is fixedly connected to the inner wall of the clamping plate 15, and the other end of the torsion spring 16 is fixedly connected to the inner wall of the insertion plate 13. A fan-shaped slot is opened on the inner wall of the insertion port of the calibrator body 1. The clamping plate 15 extends to the inner wall of the fan-shaped slot. A pull rope 17 is fixedly connected to the side wall of the clamping plate 15. The end of the pull rope 17 away from the clamping plate 15 passes through the insertion plate 13 and the cover plate 10 and is fixedly connected to a pull ring 18.

[0029] After the insert plate 13 is inserted into the socket, the torsion spring 16 can push the retaining plate 15 to extend into the inside of the fan-shaped slot, which can improve the stability of the insert plate 13 inside the socket and further improve the stability of the cover plate 10. Subsequently, pulling the pull ring 18 can pull the pull rope 17 to move, so that the retaining plate 15 retracts into the inside of the rectangular slot. Pulling the handle 12 makes it easy to adjust the cover plate 10.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A handheld surveying laser rangefinder calibrator, comprising a calibrator body (1), characterized in that: Two first lenses (2) are provided on one side of the calibrator body (1), and a second lens (3) is provided on the other side of the calibrator body (1). A connecting ring (5) is fixedly connected to the side wall of the calibrator body (1), and a rope loop (6) is provided inside the connecting ring (5). Multiple rubber strips (7) are fixedly connected to the side wall of the calibrator body (1). A notch is opened on the inner wall of the bottom end of the calibrator body (1). A storage box (9) is inserted into the inner wall of the notch of the calibrator body (1). A cover plate (10) is fixedly connected to the side wall of the storage box (9). The cover plate (10) is fitted to the side wall of the calibrator body (1) located at the notch. A handle (12) is fixedly connected to the side wall of the cover plate (10).

2. The handheld surveying laser rangefinder calibrator according to claim 1, characterized in that: The top of the calibrator body (1) is fixedly connected to a lifting strap (4), and a rubber anti-slip pad (8) is fixedly connected to the side wall of the calibrator body (1).

3. The handheld surveying laser rangefinder calibrator according to claim 1, characterized in that: A sponge pad (11) is fixedly connected to the inner wall of the bottom end of the storage box (9), and multiple slots are provided on the upper surface of the sponge pad (11).

4. The handheld surveying laser rangefinder calibrator according to claim 1, characterized in that: A plug plate (13) is fixedly connected to the side wall of the cover plate (10). The calibrator body (1) has an insertion port on the inner wall of the recess. The plug plate (13) is inserted into the inner wall of the insertion port. A rectangular groove is provided on the inner wall of the plug plate (13).

5. A handheld surveying laser rangefinder calibrator according to claim 4, characterized in that: The insert plate (13) is fixedly connected to the inner wall of the rectangular groove by a fixing rod (14). The fixing rod (14) is movably fitted with a clamping plate (15) and a torsion spring (16). One end of the torsion spring (16) is fixedly connected to the inner wall of the clamping plate (15), and the other end of the torsion spring (16) is fixedly connected to the inner wall of the insert plate (13). The calibrator body (1) has a fan-shaped slot on the inner wall of the insertion port, and the clamping plate (15) extends to the inner wall of the fan-shaped slot.

6. A handheld mapping laser rangefinder calibrator according to claim 5, characterized in that: A pull rope (17) is fixedly connected to the side wall of the card plate (15). The end of the pull rope (17) away from the card plate (15) passes through the insert plate (13) and the cover plate (10) and is fixedly connected to a pull ring (18).

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