Simple support frame suitable for handheld laser scanner

Abstract

The utility model discloses a simple supporting frame suitable for a handheld laser scanner. The simple supporting frame comprises a chassis, a connecting bolt, a telescopic connecting rod, an adjustable rotating shaft and an enclosure supporting arm. The scanner is characterized in that a circular groove and a placement platform are arranged at the front part of the chassis and are used for placing and fixing the scanner, and the chassis is connected with the telescopic connecting rod through threads; a telescopic inner pipe is embedded in the telescopic connecting rod, and an adjusting screw buckle is arranged at the bottom of the right side of a telescopic outer pipe and used for adjusting the length of the telescopic connecting rod according to the needs of a human body and a scanning scene; the adjustable rotating shaft is provided with a knob bolt for controlling the rotating angle, the enclosure supporting arm is fixedly welded to the adjustable rotating shaft and provided with a shoulder supporting structure and an abdomen supporting structure, the shoulder supporting structure and the abdomen supporting structure are fixedly connected through an elastic knob bolt, the wearing opening angle can be freely set according to the body shape of a scanning person, and the shoulder supporting structure is provided with a concave-convex buckle. The device is used for quick connection, storage and folding.

Description

Technical Field

[0001] The utility model belongs to the field of auxiliary devices and instruments for three-dimensional laser scanners, and more specifically, particularly relates to a simple supporting frame suitable for a handheld laser scanner. Background Art

[0002] 3D laser scanning technology is currently one of the world's most advanced measurement technologies. 3D laser scanners primarily use pulsed and phase-phase ranging methods. Pulsed 3D laser scanners offer longer ranges, ranging from hundreds to thousands of meters. Representative devices include Leica's P-series and RIEGL's VZ-series 3D laser scanners. Phase-phase 3D laser scanners, such as those from Faro and Trimble, have a relatively short range, measuring only tens to hundreds of meters. With their efficient laser emission frequency, they can emit hundreds of thousands of laser points per second, enabling rapid, large-scale, and high-resolution acquisition of 3D spatial information on the surface of the object being measured. These devices are widely used in fields such as power inspection, landslide monitoring, building facade measurement, and the preservation of historic buildings.

[0003] In recent years, handheld 3D laser scanning devices have attracted widespread attention from users. However, when using handheld 3D laser scanners for actual field measurements, due to their handheld nature, operators need to hold the device, which weighs several kilograms, in front of their chest. At the same time, to avoid interference from the scanner, they need to hold their arms horizontally and forward a certain distance. It is difficult for operators to maintain a stable scanning posture for long periods of time. For example, when scanning large objects, they need to hold the scanner for a long time. Hand fatigue and changes in complex environments will inevitably cause hand vibrations, which will cause the scanned point cloud to produce more noise. In severe cases, it may even cause point cloud rotation and stratification, which will adversely affect the point cloud scanning results and make it difficult to ensure the accuracy of the scanning measurement. There are also some complex and expensive support frame devices on the market. However, these support frames are large in size and weight, and are inconvenient to carry. They are not suitable for use in flexible and changeable environments such as field operations.

[0004] In response to the problems of heavy burden on the arms and poor operational flexibility in the above-mentioned existing technologies, the present invention aims to provide an improved simple handheld laser scanner support frame device, which is worn on the scanner through a protective support arm, and uses the shoulders and abdomen to bear the laser scanner to reduce the burden on the operator; the operator uses the telescopic connecting rod and knob bolt to achieve free control of the laser scanner, improve the flexibility and comfort of operation, and meet the scanning requirements of different scenes and objects. At the same time, detachable parts are provided on each part to facilitate wearing and storage, and easy use. Summary of the Invention

[0005] The utility model provides a simple support frame suitable for a handheld laser scanner, which can effectively solve the problems of unstable operation of existing handheld scanners in multiple scene environments, poor point cloud accuracy, and high labor intensity of field scanning.

[0006] A simple support frame for a handheld laser scanner includes a chassis, connecting bolts, a telescopic connecting rod, an adjustable rotating shaft, and a protective support arm. The chassis has a circular groove and a placement platform at the front. The telescopic connecting rod consists of a telescopic outer tube and a telescopic inner tube, with the outer tube mating with an embedded circular cylindrical inner tube. An adjustment screw buckle is provided at the bottom of the outer tube, and a connecting thread is provided at the front end of the tube. The adjustable rotating shaft includes a rotating bearing and a knob bolt. The protective support arm includes an elastic knob bolt, an abdominal support structure, a shoulder support structure, and a concave-convex buckle.

[0007] Furthermore, the chassis is made of carbon fiber material as a whole, with a circular groove and a placement platform at the front end. The circular groove is a cylindrical structure as a whole, which is used to carry and fix the handheld laser scanner; the rear end of the chassis is provided with an embedded thread, which is connected to the telescopic connecting rod through the thread.

[0008] Furthermore, the telescopic connecting rod is a circular cylindrical structure as a whole, with a circular cylindrical telescopic inner tube embedded inside, which has certain strength and support; a screw buckle fitting is provided at the bottom of the telescopic outer tube, and the length of the telescopic connecting rod is freely adjusted by adjusting the screw buckle, and at the same time has a certain damping property to prevent point cloud stratification due to vibration; a connecting thread is left on the left head of the telescopic connecting rod for fixed connection with the chassis; a circular bolt connection port is embedded in the bottom right side of the telescopic connecting rod for fixed connection with the adjustable rotating shaft.

[0009] Furthermore, the adjustable rotating shaft is provided with a circular bolt at one end, which can be fixedly connected to the telescopic connecting rod through the connecting bolt; there is a rubber gasket on the upper layer, which has a certain damping property and will not shake easily; and there is a knob bolt, which has a circular marble and a rotating shaft embedded inside, which can rotate 360°, used to control the point cloud scanning viewing angle, and is connected to the telescopic connecting rod through a connecting bolt.

[0010] Furthermore, the containment support arm and the adjustable rotating shaft are firmly connected by welding to ensure the stability of the overall structure of the support frame; the side of the containment support arm close to the body part is encapsulated with soft support materials such as leather and rubber, and the other side is made of hard plastic and carbon fiber; a shoulder support structure is provided at the upper part to assist in mounting the handheld scanner with the help of shoulder strength, an elastic knob bolt fitting is provided in the middle part to flexibly control the opening angle of the containment support arm, and an abdominal support structure is provided at the lower part to assist in supporting the handheld scanner with the help of abdominal strength; a concave and convex buckle is provided in the middle section of the shoulder support structure for quick connection and storage and folding.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] ① The utility model has a simple structure, low implementation cost, and each component can be disassembled, and has the advantages of being portable and durable.

[0013] ② The upper part of the chassis of the utility model has a circular groove and a placement platform. The circular groove can support the bottom of the handheld scanner, stabilize the handheld scanner during scanning and measurement, improve the accuracy of the scanned point cloud, and reduce point cloud noise.

[0014] ③ The telescopic connecting rod and adjustable rotating axis of the utility model utilize the inner and outer tubes of the telescopic connecting rod to cooperate with the adjusting screw buckle to freely adjust the length and rotation angle of the telescopic connecting rod, which is convenient for scanning personnel with different arm lengths and for use in multi-angle complex working scenarios. At the same time, the tube wall of the telescopic connecting rod is relatively thick, with good support and certain damping properties, which effectively prevents point cloud scanning errors caused by vibration.

[0015] ④ The lower abdomen support structure of the protective support arm of the utility model fits on the abdomen of the scanner, and the upper shoulder support structure is carried on the shoulder. The opening angle of the protective support arm can be flexibly adjusted with the elastic knob bolt, which is convenient for use by scanners of different body shapes.

[0016] ⑤This utility model is particularly suitable for complex working environments with many narrow areas and turns. The simple support frame can directly rely on the shoulder and abdominal strength of the scanner to reduce the fatigue of the scanner's arms. At the same time, it can stably support the handheld scanner, improve the efficiency of field scanning, and further ensure the accuracy of the scanned point cloud. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is the main view of the utility model;

[0019] Figure 2 It is the main view and top view of the chassis;

[0020] Figure 3 It is the main view of the telescopic connecting rod;

[0021] Figure 4 It is the main view and top view of the adjustable rotation axis;

[0022] Figure 5 It is the main view of the enclosure support arm;

[0023] In the figure: 1-chassis, 2-telescopic connecting rod, 3-adjustable rotating shaft, 4-elastic knob bolt, 5-enclosing support arm; 1-1-circular groove, 1-2-placing platform, 1-3-connecting bolt; 2-1-telescopic connecting rod outer tube, 2-2-telescopic connecting rod inner tube, 2-3-bolt bayonet; 3-1-knob bolt, 3-1-1-bolt hole, 3-1-2-adjustable knob; 5-1-concave and convex buckle, 5-2-abdomen support structure, 5-3-shoulder support structure. DETAILED DESCRIPTION

[0024] The present invention will be described clearly and completely below with reference to the accompanying drawings and embodiments. Obviously, the embodiments described are only a part of the present invention, not all of the embodiments, and are intended to help understanding of the present invention.

[0025] like Figure 1 The figure shows a simple support frame suitable for a handheld laser scanner, comprising a chassis 1, a telescopic connecting rod 2, an adjustable rotating shaft 3, an elastic knob bolt 4, and a protective support arm 5. Connecting bolts 1-3 are provided on the right side of the chassis 1, connecting to the top left end of the telescopic connecting rod 2; the right side of the telescopic connecting rod 2 is connected to the protective support arm 5 via the adjustable rotating shaft 3.

[0026] The chassis 1 can be made of carbon steel, and the main part is provided with a circular groove 1-1, a placement platform 1-2, and a connecting bolt 1-3; there is a built-in bolt pattern on the right side of the chassis, which can be connected to the chassis 1 and the telescopic connecting rod 2 as a whole with the external convex thread on the left head of the telescopic connecting rod.

[0027] The telescopic connecting rod 2 is a tubular structure made of carbon steel. The main body consists of a 2mm thick telescopic connecting rod outer tube 2-1 and an inner tube 2-2. The inner tube 2-2 is embedded in the outer tube 2-3. The inner tube 2-2 can be pulled out and retracted, and the length of the telescopic connecting rod can be freely controlled by cooperating with the bolt bayonet 2-3. A built-in threaded port is provided on the right side of the telescopic connecting rod outer tube 2-1, which cooperates with the adjustable rotating shaft 3 to connect the telescopic connecting rod 2, the knob bolt 3-1 and the enclosure support arm 5 as a whole.

[0028] The adjustable rotating shaft 3 consists of a knob bolt 3-1, a bolt hole 3-1-1 and an adjustable knob 3-1-2; the knob bolt 3-1 is a circular structure made of carbon steel, can rotate 360°, and is provided with a rubber damping pad on the top; it is connected to the telescopic connecting rod 2 through the adjustable knob 3-1-2.

[0029] The elastic knob bolt 4 is a circular structure made of carbon steel, with a circular spring inside, which can support wearing operations such as loosening and tightening of the protective support arm, and the maximum opening angle can reach 180°.

[0030] The protective support arm 5 is made of carbon steel, fixed to the adjustable rotating shaft 3 by welding, and encapsulated with soft supporting materials such as leather and rubber. The main body includes an abdominal support structure 5-2 and a shoulder support structure 5-3, which are connected by an elastic knob bolt 4; the tail ends of the abdominal support structure 5-2 and the shoulder support structure 5-3 are arc-shaped, which is conducive to comfortably fitting the abdomen and shoulders of the scanner. A concave-convex buckle 5-1 is provided in the middle of the shoulder support structure 5-3. The concave-convex buckle 5-1 is made of high-strength engineering plastic, the convex part is cylindrical, and the open end of the concave part is an elastic closing structure, which can be fastened to the convex part to achieve quick connection and storage and folding of the protective support arm, which is convenient for carrying.

[0031] When working in narrow, winding, or long-duration environments, the handheld scanner can be used in conjunction with it. First, secure the chassis 1 and telescopic connecting rod 2 separately, tighten the knob bolts, and securely connect the telescopic connecting rod 2 and the adjustable rotating shaft 3 using the knob bolt 3-1. The scanner then uses the elastic knob bolt 4 to adjust the opening angle of the enclosure support arm. The simple support frame is then carried on the body, with the upper portion of the shoulder support structure 5-3 resting on the shoulders and the abdomen support structure 5-2 resting on the scanner's abdomen. Finally, the handheld scanner is placed in the circular groove 1-1. The right handheld scanner is held tightly and placed on the placement platform 1-2. By loosening the bolt clip 2-3 with the left hand, the length of the telescopic connecting rod 2 can be freely adjusted according to the scanner's arm length. After adjustment, the loose bolt clip 2-3 is tightened. The scanner swings the right arm left and right to adjust the direction, allowing for scanning and measurement work in complex scenarios.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A simple support frame suitable for a handheld laser scanner, characterized by: It includes a chassis, connecting bolts, a telescopic connecting rod, an adjustable rotating shaft and a protective support arm; the front end of the chassis has a circular groove and a placement platform, and the rear end is provided with an embedded thread, which is connected to the telescopic connecting rod; a telescopic tube is embedded in the telescopic connecting rod, an adjusting screw buckle is provided at the bottom of the outside, and a connecting thread is provided at the front end of the telescopic tube; the adjustable rotating shaft includes a rotating bearing and a knob bolt; the protective support arm includes an elastic knob bolt, an abdominal support structure, a shoulder support structure and a concave-convex buckle.

2. The simple support frame for a handheld laser scanner according to claim 1, characterized in that: The telescopic connecting rod is a circular tube structure with a telescopic outer tube on the outside and a telescopic inner tube embedded inside. The top left side is connected to the chassis. A screw buckle is provided at the bottom right side of the telescopic connecting rod for connecting to the adjustable rotating shaft.

3. The simple support frame for a handheld laser scanner according to claim 1, characterized in that: The adjustable rotating shaft is provided with a knob bolt for fixing, which is used to control the opening angle and is connected to the telescopic connecting rod through a connecting bolt; the adjustable rotating shaft is provided with a groove inside for embedding the enclosure support arm connecting piece.

4. The simple support frame for a handheld laser scanner according to claim 1, characterized in that: The containment support arm and the adjustable rotating shaft are fixed by welding; the lower part of the containment support arm is the abdomen support structure, and the upper part is the shoulder support structure, which are connected by an elastic knob bolt, and a concave-convex buckle is provided in the middle of the shoulder support structure for quick connection and storage and folding.

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