Laser distance meter with adjustable measurement angle

Abstract

The present invention discloses a laser rangefinder with adjustable measurement angle, which can ensure that the initial measurement position of the laser rangefinder is horizontal, thereby facilitating adjustment of the position and angle of the laser rangefinder. The laser rangefinder with adjustable measurement angle includes a base; a vertical electric telescopic device is provided on the base; a first electric turntable is provided at the top of the telescopic end of the vertical electric telescopic device; a first rotating plate is provided above the turntable; a support frame having three servos, namely, a first servo, a second servo, and a third servo, is provided above the first turntable; the laser rangefinder is hingedly mounted on the support frame via a ball head. Using this laser rangefinder with adjustable measurement angle ensures that the initial position of the laser rangefinder is always horizontal, thereby facilitating adjustment of the laser rangefinder's measurement angle and ensuring measurement accuracy.

Description

Technical Field

[0001] The invention relates to a distance measuring device, in particular to a laser distance meter with adjustable measuring angle. Background Art

[0002] As we all know, a laser rangefinder is an instrument that uses a certain parameter of a modulated laser to measure the distance to a target. The measurement range of a laser rangefinder is 3.5 to 5000 meters.

[0003] Based on the distance measurement method, laser rangefinders are categorized as phase-based and pulse-based. A pulsed laser rangefinder emits a single or a series of short pulsed laser beams toward a target. A photoelectric element receives the laser beams reflected from the target, and a timer measures the time between emission and reception to calculate the distance from the observer to the target. A phase-based laser rangefinder measures distance by detecting the phase difference between emitted and reflected light as they propagate through space. Laser rangefinders are lightweight, compact, easy to operate, fast, and accurate, with errors ranging from only one-fifth to several hundredths of those of other optical rangefinders.

[0004] Existing laser rangefinders, such as the one disclosed in Chinese patent application No. 202011638970.6, include an adjustable-angle laser ranging device comprising a rotating module, a laser ranging module, and a control system. The laser ranging module is fixedly connected to the rotating portion of the rotating module. Both the laser ranging module and the rotating module are electrically connected to the control system. The control system is capable of receiving and processing the distance value measured by the laser ranging module and controlling the rotating module to drive the laser ranging module to rotate based on the distance value. The beneficial effect of the present invention is that it can automatically control the ranging reference plane of the laser ranging module to be parallel to the plane to be measured. It has a simple structure and is easy to adjust, greatly improving its ease of use.

[0005] Although the above device can achieve angle adjustment of the laser rangefinder, it cannot ensure the horizontal state of the initial position of the laser rangefinder; therefore, it is complicated to achieve adjustment of the measurement angle. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a laser rangefinder with adjustable measuring angle, which can ensure that the initial measurement position of the laser rangefinder is in a horizontal state, thereby facilitating adjustment of the position and angle of the laser rangefinder.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: a laser rangefinder with adjustable measuring angle includes a base; a vertical electric telescopic device is provided on the base; a first electric turntable is provided on the top of the telescopic end of the vertical electric telescopic device; a first rotating plate is provided above the turntable;

[0008] A second rotating plate is provided on the first rotating plate; a first steering gear is provided between the first rotating plate and the second rotating plate;

[0009] Vertical support plates are provided on both sides of the second rotating plate; a first inverted U-shaped support frame is hinged to the upper end of the vertical support plate;

[0010] A second steering gear is provided on the vertical support plate on one side of the second rotating plate; a rotating shaft of the second steering gear is fixedly connected to one side of the lower end of the opening of the first inverted U-shaped support frame; the second steering gear drives the first inverted U-shaped support frame to rotate relative to the vertical support plate;

[0011] A third steering gear is provided above the top plate of the first inverted U-shaped support frame; a ball joint seat is provided below the top plate of the first inverted U-shaped support frame; a rotating shaft of the third steering gear passes through the top plate and is fixedly connected to the ball joint seat, driving the ball joint seat to rotate;

[0012] The ball joint seat has a ball joint cavity; a locking cavity is provided on one side of the ball joint cavity; a locking block is slidably mounted in the locking cavity; a second electric telescopic device is provided on one side of the ball joint seat; a telescopic end of the second electric telescopic device extends into the locking cavity and is connected to the locking block; the locking block is driven to slide laterally;

[0013] The ball joint seat is connected to a ball joint connector; a second inverted U-shaped support frame is connected below the ball joint connector;

[0014] A mounting plate is provided at the lower opening of the second inverted U-shaped support frame; a slot is provided on the mounting plate; a laser rangefinder is provided in the slot; locking nuts are provided around the slot; the locking nuts are used to lock the laser rangefinder;

[0015] The base is provided with a battery for providing electric energy to the first steering gear, the second steering gear, the third steering gear, the first electric turntable and the vertical electric telescopic device; the base is provided with controllers for the first steering gear, the second steering gear and the third steering gear.

[0016] Furthermore, a guide cylinder matching the vertical electric telescopic device is provided on the lower surface of the first rotating plate; the guide cylinder is sleeved on the vertical electric telescopic device.

[0017] Furthermore, the third steering gear is mounted on the top plate of the first inverted U-shaped support frame through a mounting sleeve; the lower end of the mounting sleeve passes through the top plate of the first inverted U-shaped support frame and is provided with a locking bolt.

[0018] Furthermore, a battery installation cavity is provided at the bottom of the base, the battery is installed in the battery installation cavity, and a sealing plate is provided at the opening of the installation cavity; the sealing plate seals the battery installation cavity.

[0019] Furthermore, a mounting hole is provided on the base.

[0020] The beneficial effects of the present invention are as follows: the laser rangefinder with adjustable measuring angle of the present invention can realize the adjustment of the height of the measuring position due to the provision of the vertical electric telescopic device; and can realize the adjustment of the horizontal angle by providing the first electric turntable;

[0021] A support frame having a first steering gear, a second steering gear, and a third steering gear is provided, so that the measuring instrument can have an anti-vibration function;

[0022] Secondly, since the laser rangefinder is hinged to the support frame through a ball head, the laser rangefinder can be kept in a horizontal state at all times before the ball head is hinged and locked; thereby facilitating the adjustment of the measuring angle of the laser rangefinder and ensuring measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A perspective view of a laser rangefinder with adjustable measurement angle according to an embodiment of the present invention;

[0024] Figure 2 This is a front view of a laser rangefinder with adjustable measurement angle according to an embodiment of the present invention;

[0025] Figure 3 for Figure 2 AA section view;

[0026] Figure 4 for Figure 3 A partial enlarged view of middle B;

[0027] Indications in the figure: 1-base, 2-vertical electric telescopic device, 3-first electric turntable, 4-first rotating plate, 5-first steering gear, 6-second rotating plate, 7-second steering gear, 8-first inverted U-shaped support frame, 9-third steering gear, 91-mounting sleeve, 92-locking bolt, 10-ball head hinge seat, 11-ball head connector, 12-second inverted U-shaped support frame, 13-mounting plate, 14-slot, 15-locking nut, 16-laser rangefinder, 17-battery, 18-sealing plate, 19-locking block, 20-second electric telescopic device, 21-locking chamber. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and examples.

[0029] The laser rangefinder with adjustable measuring angle of the present invention comprises a base 1; a vertical electric telescopic device 2 is provided on the base 1; a first electric turntable 3 is provided on the top of the telescopic end of the vertical electric telescopic device 2; a first rotating plate 4 is provided above the turntable 3;

[0030] A second rotating plate 6 is provided on the first rotating plate 4; a first steering gear 5 is provided between the first rotating plate 4 and the second rotating plate 6;

[0031] A vertical support plate 61 is provided on both sides of the second rotating plate 6; a first inverted U-shaped support frame 8 is hinged to the upper end of the vertical support plate 61;

[0032] A second steering gear 7 is provided on the vertical support plate 61 on one side of the second rotating plate 6; a rotating shaft of the second steering gear 7 is fixedly connected to one side of the open lower end of the first inverted U-shaped support frame 8; the second steering gear 7 drives the first inverted U-shaped support frame 8 to rotate relative to the vertical support plate 61;

[0033] A third steering gear 9 is provided above the top plate of the first inverted U-shaped support frame 8; a ball joint seat 10 is provided below the top plate of the first inverted U-shaped support frame 8; the rotation shaft of the third steering gear 9 passes through the top plate and is fixedly connected to the ball joint seat 10, driving the ball joint seat 10 to rotate;

[0034] The ball joint seat 10 has a ball joint cavity; a locking cavity 21 is provided on one side of the ball joint cavity; a locking block 19 is slidably mounted in the locking cavity 21; a second electric telescopic device 20 is provided on one side of the ball joint seat 10; the telescopic end of the second electric telescopic device 20 extends into the locking cavity 21 and is connected to the locking block 19, driving the locking block 19 to slide laterally;

[0035] The ball joint seat 10 is connected to a ball joint connector 11; a second inverted U-shaped support frame 12 is connected below the ball joint connector 11;

[0036] A mounting plate 13 is provided at the lower opening of the second inverted U-shaped support frame 12; a slot 14 is provided on the mounting plate 13; a laser rangefinder 16 is provided in the slot 14; locking nuts 15 are provided around the slot 14; the locking nuts 15 are used to lock the laser rangefinder 16;

[0037] The base 1 is provided with a battery 17 for providing power to the first steering gear 5, the second steering gear 7, the third steering gear 9, the first electric turntable 3 and the vertical electric telescopic device 2; the base 1 is provided with controllers for the first steering gear 5, the second steering gear 7 and the third steering gear 9.

[0038] During the application process, the base 1 is installed on the detection device; thereby the laser rangefinder is located at the corresponding detection position; during the measurement process, since the first rotating plate 4 is provided with a second rotating plate 6; the first rotating plate 4 and the second rotating plate 6 are provided with a first steering gear 5;

[0039] A vertical support plate 61 is provided on both sides of the second rotating plate 6; an inverted U-shaped support frame 8 is hinged to the upper end of the vertical support plate 61;

[0040] A second steering gear 7 is provided on the vertical support plate 61 on one side of the second rotating plate 6; a rotating shaft of the second steering gear 7 is fixedly connected to one side of the lower end of the opening of the first inverted U-shaped support frame 8; the second steering gear 7 drives the first inverted U-shaped support frame 8 to rotate relative to the vertical support plate 61;

[0041] A third servo 9 is provided above the top plate of the first inverted U-shaped support frame 8; a ball head hinge seat 10 is provided below the top plate of the first inverted U-shaped support frame 8; the rotation axis of the third servo 9 passes through the top plate and is fixedly connected to the ball head hinge seat 10, driving the ball head hinge seat 10 to rotate; thereby, the mounting bracket of the ball head hinge seat 10 forms a pan / tilt platform; thereby facilitating shockproofing during the measurement process of the laser detector.

[0042] Since the laser rangefinder 16 is mounted on the mounting plate 13, and the mounting plate 13 is hinged to the ball joint seat 10 via the second inverted U-shaped support frame 12 and the ball joint connector 11, the laser rangefinder 16 always maintains a horizontal position under the action of gravity; therefore, it can be ensured that when adjusting the measuring angle, the horizontal position is always used as a reference; thereby facilitating the adjustment of the measuring position and angle.

[0043] When the measuring angle needs to be adjusted, the ball head connector 11 is locked by the second electric telescopic device 20, so that the laser rangefinder 16, the mounting plate 13, the second inverted U-shaped support frame 12, the ball head connector 11, and the ball head hinge seat 10 form a rigid whole. The whole is installed on a pan / tilt platform with three servos, thereby achieving shockproofing of the laser rangefinder 16.

[0044] At the same time, the measurement angle can be adjusted through the first electric turntable 3, and the measurement height can be adjusted through the vertical electric telescopic device 2.

[0045] In summary, the laser rangefinder with adjustable measuring angle of the present invention is provided with a vertical electric telescopic device, thereby enabling adjustment of the height of the measuring position; and by providing a first electric turntable, adjustment of the horizontal angle of measurement can be achieved.

[0046] A support frame having a first steering gear, a second steering gear, and a third steering gear is provided, so that the measuring instrument can have an anti-vibration function;

[0047] Secondly, since the laser rangefinder is hinged to the support frame through a ball head, the laser rangefinder can be kept in a horizontal state at all times before the ball head is hinged and locked; thereby facilitating the adjustment of the measuring angle of the laser rangefinder and ensuring measurement accuracy.

[0048] In order to stabilize the structure, further, a guide cylinder 41 matching the vertical electric telescopic device 2 is provided on the lower surface of the first rotating plate 4 ; the guide cylinder 41 is sleeved on the vertical electric telescopic device 2 .

[0049] To facilitate installation, the third servo 9 is further mounted on the top plate of the first inverted U-shaped support frame 8 through a mounting sleeve 91 ; the lower end of the mounting sleeve 91 passes through the top plate of the first inverted U-shaped support frame 8 and is provided with a locking bolt 92 .

[0050] In order to facilitate the installation and replacement of the battery, a battery installation cavity is further provided at the bottom of the base 1, and the battery 17 is installed in the battery installation cavity. A sealing plate 18 is provided at the opening of the installation cavity; the sealing plate 18 seals the battery installation cavity.

[0051] In order to facilitate installation, further, a mounting hole is provided on the base 1 .

Claims

1. Laser rangefinder with adjustable measuring angle, characterized by: It comprises a base (1); a vertical electric telescopic device (2) is provided on the base (1); a first electric turntable (3) is provided on the top of the telescopic end of the vertical electric telescopic device (2); a first rotating plate (4) is provided above the turntable (3); A second rotating plate (6) is provided on the first rotating plate (4); a first steering gear (5) is provided between the first rotating plate (4) and the second rotating plate (6); Vertical support plates (61) are provided on both sides of the second rotating plate (6); a first inverted U-shaped support frame (8) is hingedly connected to the upper end of the vertical support plate (61); A second steering gear (7) is provided on the vertical support plate (61) on one side of the second rotating plate (6); the second steering gear (7) has a rotating shaft fixedly connected to one side of the lower end of the opening of the first inverted U-shaped support frame (8); the second steering gear (7) drives the first inverted U-shaped support frame (8) to rotate relative to the vertical support plate (61); A third steering gear (9) is provided above the top plate of the first inverted U-shaped support frame (8); a ball joint seat (10) is provided below the top plate of the first inverted U-shaped support frame (8); a rotation shaft of the third steering gear (9) passes through the top plate and is fixedly connected to the ball joint seat (10), driving the ball joint seat (10) to rotate; The ball head hinge seat (10) has a ball head hinge cavity; a locking cavity (21) is provided on one side of the ball head hinge cavity; a locking block (19) is slidably installed in the locking cavity (21); a second electric telescopic device (20) is provided on one side of the ball head hinge seat (10); the telescopic end of the second electric telescopic device (20) extends into the locking cavity (21) and is connected to the locking block (19); the locking block (19) is driven to slide laterally; A ball head connecting piece (11) is connected to the ball head hinge seat (10); a second inverted U-shaped support frame (12) is connected below the ball head connecting piece (11); A mounting plate (13) is provided at the lower opening of the second inverted U-shaped support frame (12); a slot (14) is provided on the mounting plate (13); a laser rangefinder (16) is provided in the slot (14); locking nuts (15) are provided around the slot (14); the locking nuts (15) are used to lock the laser rangefinder (16); The base (1) is provided with a battery (17) for providing electric energy to the first steering gear (5), the second steering gear (7), the third steering gear (9), the first electric turntable (3) and the vertical electric telescopic device (2); the base (1) is provided with controllers for the first steering gear (5), the second steering gear (7) and the third steering gear (9).

2. The laser rangefinder with adjustable measurement angle according to claim 1, characterized in that: A guide cylinder (41) matching the vertical electric telescopic device (2) is provided on the lower surface of the first rotating plate (4); the guide cylinder (41) is sleeved on the vertical electric telescopic device (2).

3. The laser rangefinder with adjustable measurement angle according to claim 2, characterized in that: The third steering gear (9) is mounted on the top plate of the first inverted U-shaped support frame (8) via a mounting sleeve (91); the lower end of the mounting sleeve (91) passes through the top plate of the first inverted U-shaped support frame (8) and is provided with a locking bolt (92).

4. The laser rangefinder with adjustable measurement angle according to claim 3, characterized in that: A battery installation cavity is provided at the bottom of the base (1), the battery (17) is installed in the battery installation cavity, and a sealing plate (18) is provided at the opening of the installation cavity; the sealing plate (18) seals the battery installation cavity.

5. The laser rangefinder with adjustable measurement angle according to claim 4, characterized in that: The base (1) is provided with a mounting hole.

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