Anti-shake device of handheld laser range finder for surveying and mapping

Abstract

The utility model discloses a handheld laser range finder anti-shake device for surveying and mapping, which comprises a central shell, an anti-shake mechanism is arranged outside the central shell, the upper end of the central shell is connected with a laser range finder through a clamping mechanism, and the anti-shake mechanism comprises a first stabilizing ring, a second stabilizing ring, a balancing weight, a supporting seat and a grip. The clamping mechanism comprises a connecting rod, a mounting shell, a center gear, a set of side clamping plates, a set of first strip-shaped racks, a bottom supporting plate and a second strip-shaped rack. The beneficial effects of the utility model are that, by adopting the first stabilizing ring, the second stabilizing ring and the balancing weight, when the whole body is inclined, the balancing weight moves downwards under the action of gravity until a new balance point, namely the position of the gravity center of the whole structure, is found, and the balancing weight is always kept in the direction vertical to the ground; and the clamping mechanism adopts a group of side clamping plates and a bottom supporting plate to clamp the laser range finder, so that the laser range finder is convenient to measure and use.

Description

Technical Field

[0001] The utility model relates to the technical field of laser rangefinders, in particular to an anti-shake device for a handheld laser rangefinder used for surveying and mapping. Background Technique

[0002] A laser rangefinder is an instrument that accurately measures the distance to a target using a laser. When the laser rangefinder is working, it emits a very thin laser beam towards the target. The laser beam reflected by the target is received by a photoelectric element, and a timer measures the time from the emission to the reception of the laser beam, and calculates the distance from the observer to the target. If the laser is continuously emitted, the measuring range can reach about 40 kilometers, and the lining fluorine butterfly valve can operate day and night. If the laser is pulsed, the general absolute accuracy is relatively low, but for long-distance measurement, a good relative accuracy can be achieved.

[0003] In the existing patent with the application number CN202222800434.2, a handheld rangefinder anti-shake device for surveying and mapping is disclosed. By fixedly connecting a main rod to the bottom of the support frame, when the device is in use, the staff can drive the insertion rod to pull out the handheld rod by pulling the pull ring. At this time, the handheld rod can be telescoped inside the retractable cylinder to adjust the use distance of the device, which is convenient for the staff to debug. However, this support frame cannot effectively play an anti-shake effect on the laser rangefinder. During measurement, the human hand shakes naturally, making it difficult to ensure that the infrared emitter and the target ranging point are perpendicular and stable, affecting the measurement accuracy.

[0004] It should be noted that the above content belongs to the technical cognition scope of the inventor and does not necessarily constitute the prior art. Content of the Utility Model

[0005] Aiming at the above defects, the utility model provides an anti-shake device for a handheld laser rangefinder used for surveying and mapping to solve the problem of anti-shake of the handheld laser rangefinder.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An anti-shake device for a handheld laser rangefinder used for surveying and mapping, including a central housing, an anti-shake mechanism is arranged outside the central housing, and the upper end of the central housing is connected to the laser rangefinder through a clamping mechanism;

[0008] The anti-shake mechanism includes a first stabilizing ring, a second stabilizing ring, a counterweight, a support seat and a handle. The first stabilizing ring is movably sleeved outside the central housing, the second stabilizing ring is movably sleeved outside the first stabilizing ring, the counterweight is installed at the bottom of the central housing, the support seat is installed at the bottom of the counterweight, and the handle is installed on one side of the second stabilizing ring.

[0009] Further, the clamping mechanism includes a connecting rod, a mounting shell, a central gear, a set of side clamping plates, a set of first strip-shaped racks, a bottom support plate, and a second strip-shaped rack. The connecting rod is installed at the upper end of the central housing. The rear end of the mounting shell is movably connected to the upper end of the connecting rod through a rotating shaft. The central gear is movably installed in the mounting shell. A set of side clamping plates are movably inserted on both sides of the mounting shell. A set of first strip-shaped racks are installed at the rear ends of the set of side clamping plates and are respectively engaged with the central gear. The bottom support plate is movably inserted at the bottom of the mounting shell. The second strip-shaped rack is installed at the upper inner end of the bottom support plate and is engaged with the central gear.

[0010] Further, a set of strip-shaped holes are formed on both sides of the bottom of the bottom support plate, and a tension spring connected to the inner wall of the mounting shell is installed in the set of strip-shaped holes.

[0011] Further, a limiting block is installed at the inner bottom of the mounting shell, and a corresponding limiting groove is formed at the bottom of the bottom support plate.

[0012] Further, a set of bearings are respectively fixedly inlaid on both sides of the first stabilizing ring and the second stabilizing ring. A set of screw rods are movably inserted in the set of bearings. The front ends of the set of screw rods are respectively connected to the corresponding central housing and the first stabilizing ring through a set of nuts, and are arranged staggeredly relative to the set of screw rods.

[0013] Further, the first stabilizing ring and the second stabilizing ring are perpendicular to each other, and their center points are located on the same plane.

[0014] The utility model provides an anti-shake device for a hand-held laser rangefinder used in surveying and mapping, which has the following beneficial effects. By providing an anti-shake mechanism outside the central housing and adopting a first stabilizing ring, a second stabilizing ring, and a counterweight block, when the whole is tilted, the counterweight block will move downward under the action of gravity until a new balance point is found, that is, the position where the center of gravity of the whole structure is located. The counterweight block always remains in the direction perpendicular to the ground, so as to achieve the purpose of anti-shaking of the laser rangefinder. The clamping mechanism uses a set of side clamping plates and a bottom support plate to clamp the laser rangefinder, which is convenient for measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the anti-shake device for a hand-held laser rangefinder described in the utility model.

[0016] Figure 2 It is a top view of the anti-shake mechanism of the utility model.

[0017] Figure 3 It is a schematic diagram of the clamping mechanism of the utility model.

[0018] Figure 4 It is a schematic diagram of the installation of a set of side clamping plates of the utility model.

[0019] In the figure: 1. Central housing; 2. First stabilizing ring; 3. Second stabilizing ring; 4. Counterweight; 5. Support base; 6. Grip; 7. Connecting rod; 8. Mounting housing; 9. Central gear; 10. Side clamping plate; 11. First bar-shaped rack; 12. Bottom support plate; 13. Second bar-shaped rack; 14. Bar-shaped hole; 15. Tension spring; 16. Limit block; 17. Limit groove; 18. Bearing; 19. Screw; 20. Nut. Detailed implementation manner

[0020] The present utility model will be specifically described below with reference to the accompanying drawings. As Figures 1-4 shown: An anti-shake device for a handheld laser rangefinder used in surveying and mapping, comprising a central housing 1. An anti-shake mechanism is provided outside the central housing 1, and the upper end of the central housing 1 is connected to the laser rangefinder through a clamping mechanism; the anti-shake mechanism includes a first stabilizing ring 2, a second stabilizing ring 3, a counterweight 4, a support base 5, and a grip 6. The first stabilizing ring 2 is movably sleeved outside the central housing 1, the second stabilizing ring 3 is movably sleeved outside the first stabilizing ring 2, the counterweight 4 is installed at the bottom of the central housing 1, the support base 5 is installed at the bottom of the counterweight 4, and the grip 6 is installed on one side of the second stabilizing ring 3; the clamping mechanism includes a connecting rod 7, a mounting housing 8, a central gear 9, a group of side clamping plates 10, a group of first bar-shaped racks 11, a bottom support plate 12, and a second bar-shaped rack 13. The connecting rod 7 is installed at the upper end of the central housing 1, the rear end of the mounting housing 8 is movably connected to the upper end of the connecting rod 7 through a rotating shaft, the central gear 9 is movably installed in the mounting housing 8, a group of side clamping plates 10 are movably inserted on both sides of the mounting housing 8, a group of first bar-shaped racks 11 are installed at the rear ends of the group of side clamping plates 10 and are respectively engaged with the central gear 9, the bottom support plate 12 is movably inserted at the bottom of the mounting housing 8, and the second bar-shaped rack 13 is installed at the upper inner end of the bottom support plate 12 and is engaged with the central gear 9; a group of bar-shaped holes 14 are opened on both sides of the bottom of the bottom support plate 12, and a group of tension springs 15 connected to the inner wall of the mounting housing 8 are installed in the group of bar-shaped holes 14; a limit block 16 is installed at the bottom inside the mounting housing 8, and a corresponding limit groove 17 is opened at the bottom of the bottom support plate 12; a group of bearings 18 are fixedly inlaid on both sides of the first stabilizing ring 2 and the second stabilizing ring 3, and a group of screws 19 are movably inserted in the group of bearings 18. The front ends of the group of screws 19 are respectively connected to the corresponding central housing 1 and the first stabilizing ring 2 through a group of nuts 20, and the relative group of screws 19 are arranged in a staggered manner; the first stabilizing ring 2 and the second stabilizing ring 3 are perpendicular to each other and the center points are located on the same plane.

[0021] The working principle of this implementation scheme: The upper end of the central housing 1 is connected to the laser rangefinder through a clamping mechanism, which is a detachable structure;

[0022] During anti - shake: The first stabilizing ring 2 is movably sleeved outside the central housing 1, the second stabilizing ring 3 is movably sleeved outside the first stabilizing ring 2, the counterweight 4 is installed at the bottom of the central housing 1, the support base 5 is installed at the bottom of the counterweight 4, the grip 6 is installed on one side of the second stabilizing ring 3. A set of bearings 18 are fixedly inlaid on both sides of the first stabilizing ring 2 and the second stabilizing ring 3 respectively. A set of screw rods 19 are movably inserted into the set of bearings 18. The smooth rod parts of the screw rods 19 are movably inserted into the bearings 18. The front ends of the set of screw rods 19 are respectively connected to the corresponding central housing 1 and the first stabilizing ring 2 through a set of nuts 20, and the opposite set of screw rods 19 are arranged staggeredly. The first stabilizing ring 2 and the second stabilizing ring 3 are perpendicular to each other and their center points are on the same plane. As Figure 1 and Figure 2 shown, the user holds the grip 6 and measures the distance through the upper laser rangefinder. When the whole is tilted, the counterweight 4 will move downward under the action of gravity until a new balance point is found, that is, the position where the center of gravity of the whole structure is located. The counterweight 4 always remains in the direction perpendicular to the ground, so as to achieve the purpose of anti - shake of the laser rangefinder and improve the measurement accuracy;

[0023] During clamping: The connecting rod 7 is installed at the upper end of the central housing 1. The rear end of the mounting shell 8 is movably connected to the upper end of the connecting rod 7 through a rotating shaft. The central gear 9 is movably installed in the mounting shell 8. A set of side clamping plates 10 are movably inserted on both sides of the mounting shell 8. A set of first bar - shaped racks 11 are installed at the rear ends of the set of side clamping plates 10 and are respectively meshed with the central gear 9. The bottom support plate 12 is movably inserted at the bottom of the mounting shell 8. The second bar - shaped rack 13 is installed at the upper inner end of the bottom support plate 12 and is meshed with the central gear 9. A set of bar - shaped holes 14 are opened on both sides of the bottom of the bottom support plate 12. A tension spring 15 connected to the inner wall of the mounting shell 8 is installed in the set of bar - shaped holes 14. A limit block 16 is installed at the bottom of the mounting shell 8. A corresponding limit groove 17 is opened at the bottom of the bottom support plate 12. As Figure 3 and Figure 4 shown, the set of side clamping plates 10 and the bottom support plate 12 are arranged staggeredly. The bottom support plate 12 is in a contracted state in the initial state, and the set of side clamping plates 10 are in an open state. When the laser rangefinder is placed on the bottom support plate 12, the bottom support plate 12 slides downward under the action of gravity, the tension spring 15 is compressed, and the limit block 16 plays a limiting role. At the same time, the central gear 9 drives the set of side clamping plates 10 to clamp both sides of the laser rangefinder. The rear end of the mounting shell 8 is movably connected to the upper end of the connecting rod 7 through a rotating shaft, realizing the rotation of the laser rangefinder for convenient measurement use.

[0024] The above - mentioned technical solutions only reflect the preferred technical solutions of the technical solutions of the present utility model. Some changes that those skilled in the art of this technology may make to some parts thereof all reflect the principles of the present utility model and are within the protection scope of the present utility model.

Claims

1. A handheld laser rangefinder anti-shake device for surveying and mapping, including a central housing (1), characterized in that, A shake-proof mechanism is provided outside the central housing (1), and the upper end of the central housing (1) is connected to the laser rangefinder through a clamping mechanism; The shake-proof mechanism includes a first stabilizing ring (2), a second stabilizing ring (3), a counterweight (4), a support base (5) and a grip (6). The first stabilizing ring (2) is movably sleeved outside the central housing (1), the second stabilizing ring (3) is movably sleeved outside the first stabilizing ring (2), the counterweight (4) is installed at the bottom of the central housing (1), the support base (5) is installed at the bottom of the counterweight (4), and the grip (6) is installed on one side of the second stabilizing ring (3).

2. The anti-shake device for a handheld laser rangefinder used in surveying and mapping according to claim 1, wherein The clamping mechanism includes a connecting rod (7), a mounting shell (8), a central gear (9), a group of side clamping plates (10), a group of first strip-shaped racks (11), a bottom support plate (12) and a second strip-shaped rack (13). The connecting rod (7) is installed at the upper end of the central housing (1), the rear end of the mounting shell (8) is movably connected to the upper end of the connecting rod (7) through a rotating shaft, the central gear (9) is movably installed in the mounting shell (8), a group of side clamping plates (10) are movably inserted on both sides of the mounting shell (8), a group of first strip-shaped racks (11) are installed at the rear ends of the group of side clamping plates (10) and are respectively meshed with the central gear (9), the bottom support plate (12) is movably inserted at the bottom of the mounting shell (8), and the second strip-shaped rack (13) is installed at the upper inner end of the bottom support plate (12) and is meshed with the central gear (9).

3. The anti-shake device for a handheld laser rangefinder used in surveying and mapping according to claim 2, wherein, A group of strip-shaped holes (14) are opened on both sides of the bottom of the bottom support plate (12), and a tension spring (15) connected to the inner wall of the mounting shell (8) is installed in the group of strip-shaped holes (14).

4. A anti-shake device for a handheld laser rangefinder used in surveying and mapping according to claim 2, characterized in that, A limiting block (16) is installed at the inner bottom of the mounting shell (8), and a corresponding limiting groove (17) is opened at the bottom of the bottom support plate (12).

5. The anti-shake device for a handheld laser rangefinder for surveying and mapping according to claim 1, characterized in that, A group of bearings (18) are respectively fixedly inlaid on both sides of the first stabilizing ring (2) and the second stabilizing ring (3), and a group of screw rods (19) are movably inserted in the group of bearings (18). The front ends of the group of screw rods (19) are respectively connected to the corresponding central housing (1) and the first stabilizing ring (2) through a group of nuts (20), and the opposite group of screw rods (19) are arranged in a staggered manner.

6. The anti-shake device for a handheld laser rangefinder for surveying and mapping according to claim 1, characterized in that, The first stabilizing ring (2) and the second stabilizing ring (3) are perpendicular to each other and their centers are located on the same plane.

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