Laser measuring device

Abstract

The utility model relates to the technical field of laser instruments, and discloses a laser measuring device which comprises a main frame, a laser measuring instrument fixedly arranged on the main frame and a plurality of supports circumferentially arranged on the main frame, and the supports can be opened, closed and gathered relative to the main frame. Wherein the support comprises an inner supporting leg, an outer sleeve, a connecting sleeve and a movable support, the inner supporting leg is movably hinged to the main frame, the outer sleeve is telescopically connected to the end, away from the main frame, of the inner supporting leg, the connecting sleeve is rotationally connected with the outer sleeve, and the movable support is rotationally connected to the connecting sleeve in a damping mode. The problem that a laser measuring device equipped with a tripod cannot be horizontally placed when the height of the surface of a foundation is different is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser instruments and relates to a laser measuring device. Background Art

[0002] Currently, measuring the distance to a target is necessary in field tests, construction, or land surveys. Laser measuring instruments are commonly used for this purpose. Laser measuring instruments emit a laser beam, which illuminates an object near the measured distance. A timer measures the time between laser emission and laser reception, calculating the distance from the laser measuring instrument to the laser's location. Laser distance measuring instruments are compact, lightweight, and easy to operate.

[0003] In order to ensure the stability of the measuring instrument during measurement, the measuring instrument is usually fixed on a tripod for use. However, when the foundation surface is uneven in height, the use of a tripod cannot ensure that the laser measuring device is placed horizontally. Utility Model Content

[0004] (1) Purpose of the utility model

[0005] The purpose of the utility model is to provide a laser measuring device to solve the problem that the existing laser measuring device equipped with a tripod cannot ensure that the laser measuring device is placed horizontally when the foundation surface has different heights.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides a laser measuring device, including a main frame, a laser measuring instrument fixed on the main frame, and a plurality of brackets circumferentially arranged on the main frame, wherein the brackets can be opened, closed and gathered relative to the main frame.

[0008] Wherein, the bracket includes an inner leg, an outer sleeve, a connecting sleeve and a movable support. The inner leg is movably hinged to the main frame. The outer sleeve is telescopically connected to the end of the inner leg away from the main frame. The connecting sleeve is rotatably connected to the outer sleeve. The movable support is connected to the connecting sleeve with damping rotation.

[0009] Wherein, the outer sleeve is axially provided with an internal thread connection cavity, the inner leg is axially provided with an external thread, and the inner leg is placed in the internal thread connection cavity to form a threaded connection with the inner leg.

[0010] Among them, the outer sleeve is closed at one end away from the inner leg and has an outwardly protruding shaft column, and a bearing is provided in the end of the connecting sleeve connected to the outer sleeve. The outer sleeve is placed in the bearing through the shaft column to form a rotational connection with the connecting sleeve.

[0011] Among them, the connecting sleeve is sealed at one end away from the outer sleeve and forms a flat connecting part, the movable support includes a U-shaped bracket and a flat plate integrated with the U-shaped bracket, the connecting part extends into the U-shaped bracket and the U-shaped bracket is connected to the connecting part in a damped rotation manner.

[0012] Wherein, the U-shaped holder and the connecting portion are rotatably connected via a pin shaft, and an elastic column sleeve is sleeved on the pin shaft.

[0013] Wherein, a supporting chassis is provided at one end of the main frame away from the laser measuring instrument, and a slot for holding the bracket is provided on the supporting chassis.

[0014] Wherein, a threaded connection hole is provided at one end of the main frame away from the laser measuring instrument, and a detachable nail rod is provided in the threaded connection hole.

[0015] Wherein, a pan platform is configured on the top of the main frame, and the laser measuring instrument is fixed on the pan platform.

[0016] Among them, a plurality of hinge seats are arranged in an array on the outer peripheral wall of one end of the main frame close to the pan-tilt head. The hinge seats correspond to the inner legs one by one, and the inner legs are installed on the hinge seats through pivot rotation.

[0017] (3) Beneficial effects

[0018] The laser measuring device provided by the above technical solution sets a main frame to ensure the overall verticality of the frame. When encountering uneven low-lying foundation roads, the length adjustability of the support legs is utilized to extend the length of the support legs by rotating the outer sleeve so that the movable support contacts the foundation road surface. The rotational connection between the movable support legs and the connecting sleeve can be used to rotate the movable support to an angle that fits or is approximately in fit with the foundation road surface, completing the installation of the support legs, thereby ensuring that the laser measuring instrument is placed horizontally under the low-lying foundation road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the laser measuring device according to an embodiment of the utility model at one viewing angle;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0021] Explanation of the numbers in the accompanying drawings: 1-main frame, 2-bracket, 201-inner support leg, 202-outer sleeve, 203-connecting sleeve, 204-movable support, 205-axis column, 206-pin shaft, 207-elastic column sleeve, 3-pan head, 4-laser measuring instrument, 5-support chassis, 6-card slot, 7-nail rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] Refer to the attached Figure 1The present invention provides a laser measurement device comprising a main frame 1, brackets 2, and a laser measuring instrument 4. A pan / tilt platform 3 is disposed on top of the main frame 1, and the laser measuring instrument 4 is fixedly mounted on the pan / tilt platform 3. Three sub-brackets 2 are arranged circumferentially on the main frame 1, and are articulated relative to the main frame 1 to enable the brackets 2 to be opened and closed relative to the main frame 1. When the laser measuring instrument 4 is not in use, the brackets 2 can be folded together for easy portability. When the laser measuring instrument 4 is in use, the brackets 2 can be opened to form a triangular support, increasing the stability of the laser measuring instrument 4 during use.

[0027] In this embodiment, the bracket 2 includes an inner leg 201, an outer sleeve 202, a connecting sleeve 203 and a movable support 204. The inner leg 201 is movably hinged to the main frame 1, the outer sleeve 202 is telescopically connected to the end of the inner leg 201 away from the main frame 1, the connecting sleeve 203 is rotatably connected to the outer sleeve 202, and the movable support 204 is connected to the connecting sleeve 203 with damped rotation.

[0028] In the above description, three hinge seats are arranged in an array on the outer peripheral wall of one end of the main frame 1 close to the pan / tilt head 3, and the hinge seats correspond to the inner legs 201 one by one. The inner legs 201 are installed on the hinge seats by pivoting.

[0029] During use, if the foundation road surface is flat, you only need to open the bracket 2 and cooperate with the main frame 1 to set up the laser measuring instrument 4 on the ground; if you encounter a low and uneven foundation road surface, you need to open the bracket 2 and adjust the extension of the outer sleeve 202 to make the movable support 204 contact with the foundation road surface, and use the rotatability of the movable support 204 to make the movable support 204 fit or nearly fit with the foundation road surface, so that the laser measuring instrument 4 can be horizontally set up on the low and uneven foundation road surface.

[0030] In the above, in order to achieve the adjustable length of the bracket 2, see Figure 1 and Figure 2 As shown, the outer sleeve 202 is provided with an internal thread connection cavity along the axial direction, and the inner leg 201 is provided with an external thread along the axial direction. The inner leg 201 is placed in the internal thread connection cavity to form a threaded connection with the inner leg 201. Specifically, when in use, the outer sleeve 202 can be screwed and adjusted to extend and retract to change the length of the stent 2.

[0031] In a preferred embodiment, in order to realize the rotation connection between the connecting sleeve 203 and the outer sleeve 202, see Figure 1 and Figure 2As shown, the outer sleeve 202 is closed at one end away from the inner leg 201 and has an outwardly protruding shaft column 205. The end of the connecting sleeve 203 connected to the outer sleeve 202 is provided with a bearing. The outer sleeve 202 is inserted into the bearing via the shaft column 205 to form a rotational connection with the connecting sleeve 203. As can be imagined, due to the bearing connection between the connecting sleeve 203 and the outer sleeve 202, when the outer sleeve 202 is rotated, the connecting sleeve 203 does not rotate with the outer sleeve 202. Therefore, the movable support 204 in contact with the foundation road surface does not rotate with the outer sleeve 202 either. Consequently, the movable support 204 does not hinder the rotation of the outer sleeve 202 due to contact with the foundation road surface.

[0032] In addition, since the foundation road surface is low and uneven and the legs are obliquely extended, when the movable support 204 contacts the foundation road surface, in order to ensure that the movable support 204 can fit or approximately fit with the foundation road surface, see Figure 1 and Figure 2 As shown, the end of the connecting sleeve 203 away from the outer sleeve 202 is sealed and forms a flat connecting portion. The movable support 204 includes a U-shaped base and a flat plate integral with the U-shaped base. The connecting portion extends into the U-shaped base and forms a damped rotation connection between the connecting portion and the U-shaped base. It can be imagined that when in use, after the legs are unfolded, as the outer sleeve 202 rotates outward and extends, the movable support 204 gradually approaches the roadbed foundation surface and begins to contact the foundation road surface. The outer sleeve 202 continues to rotate outward and extend, causing the flat plate that first contacts the foundation road surface to gradually rotate due to the reverse action of the bottom surface, and eventually the flat plate rotates until it is in contact with the foundation road surface or nearly in contact with it.

[0033] In the above, the connecting part is provided with an axial hole, and a pin shaft 206 is passed through the axial hole. The U-shaped holder and the connecting part are rotatably connected through the pin shaft 206. An elastic column sleeve 207 is sleeved on the pin shaft 206. The elastic sleeve and the axial hole are interference fit, so that a damping rotation connection is formed between the movable support 204 and the connecting sleeve 203. Optionally, the elastic column sleeve 207 can be made of a material such as rubber, which has low cost and long service life. It is not difficult to understand that in order to ensure the stability of the bracket 2 after it is erected and to avoid shaking due to the rotational connection between the movable support 204 and the connecting sleeve 203, a damped rotational connection is formed between the movable support 204 and the connecting sleeve 203. By utilizing the variability of the elastic column sleeve 207, when the movable support 204 is rotated with force, the elastic column sleeve 207 will be compressed to realize the mutual rotation between the movable support 204 and the connecting sleeve 203. In the natural state, the damping effect of the elastic column sleeve 207 makes it impossible for the movable support 204 and the connecting sleeve 203 to rotate independently, thereby ensuring the stability of the bracket 2 in the natural state.

[0034] In a preferred embodiment, in order to enable the main frame 1 to support the laser measuring instrument 4, see Figure 1As shown, a support chassis 5 is provided at one end of the main frame 1 away from the laser measuring instrument 4. A slot 6 for holding the bracket 2 is provided circumferentially on the support chassis 5. As is readily understood, the large contact area between the support chassis 5 and the bottom surface prevents the main frame 1 from tipping over after installation. Furthermore, the provision of the slot 6 allows the brackets 2 to be held together when the laser measuring instrument 4 is not in use, thus saving space and making it easy to carry.

[0035] Of course, for some foundation roads with loose soil, it is possible, such as Figure 1 As shown, a threaded connection hole is opened at the end of the main frame 1 away from the laser measuring instrument 4, and a nail rod 7 is threadedly connected to the threaded connection hole. When the soil of the foundation road surface is hard, the main frame 1 can be kept upright by directly attaching the supporting chassis 5 to the foundation road surface. When the soil of the foundation road surface is loose, the nail rod 7 can be screwed into the threaded connection hole at the bottom of the main frame 1, and the nail rod 7 can be used to nail into the loose soil to ensure that the main frame 1 is upright.

[0036] In summary, the laser measurement device provided in the embodiments of the present application has the following usage method:

[0037] For flat and hard foundation roads, the support chassis 5 is used to keep the bracket 2 upright, and the bracket 2 is extended outward to make the movable support 204 fit the road surface, thereby keeping the laser measuring instrument 4 horizontal and stable.

[0038] For soft soil foundation and road surface, the nail rod 7 can be screwed into the bottom of the main frame 1 and nailed into the soft soil to keep the main frame 1 upright, and through the cooperation of the legs, the laser measuring instrument 4 can be placed horizontally and stably;

[0039] For unevenly low foundation roads, choose whether to use nail rods 7 depending on whether the soil is soft. After the main frame 1 is upright, extend the bracket 2 and rotate the outer sleeve 202 to extend it, so that the movable support 204 contacts the road surface and continue to rotate the outer sleeve 202 to extend it until the movable support 204 fits or nearly fits the road surface, thereby achieving horizontal placement of the laser measuring instrument 4 on the low-lying road surface.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A laser measuring device, characterized in that: The invention comprises a main frame, a laser measuring instrument fixed on the main frame and a plurality of brackets circumferentially arranged on the main frame, wherein the brackets can be opened, closed and gathered relative to the main frame.

2. The laser measuring device according to claim 1, wherein The bracket includes an inner leg, an outer sleeve, a connecting sleeve and a movable support. The inner leg is movably hinged to the main frame. The outer sleeve is telescopically connected to the end of the inner leg away from the main frame. The connecting sleeve is rotatably connected to the outer sleeve. The movable support is connected to the connecting sleeve with damping rotation.

3. The laser measuring device according to claim 2, wherein: The outer sleeve is provided with an internal thread connection cavity along the axial direction, the inner leg is provided with an external thread along the axial direction, and the inner leg is placed in the internal thread connection cavity to form a threaded connection with the inner leg.

4. The laser measuring device according to claim 3, wherein: The outer sleeve is closed at one end away from the inner leg and has an outwardly protruding shaft column. A bearing is provided in the end of the connecting sleeve connected to the outer sleeve. The outer sleeve is placed in the bearing through the shaft column to form a rotational connection with the connecting sleeve.

5. The laser measuring device according to claim 4, wherein: The connecting sleeve is sealed at one end away from the outer sleeve and forms a flat connecting portion. The movable support includes a U-shaped base and a flat plate integral with the U-shaped base. The connecting portion extends into the U-shaped base and the U-shaped base is connected to the connecting portion in a damped rotation manner.

6. The laser measuring device according to claim 5, wherein: The U-shaped holder is rotatably connected to the connecting portion via a pin shaft, and an elastic column sleeve is sleeved on the pin shaft.

7. The laser measuring device according to claim 6, wherein: A supporting chassis is provided at one end of the main frame away from the laser measuring instrument, and a clamping slot for clamping the bracket is provided on the supporting chassis.

8. The laser measuring device according to claim 7, wherein: A threaded connection hole is provided at one end of the main frame away from the laser measuring instrument, and a detachable nail rod is arranged in the threaded connection hole.

9. The laser measuring device according to claim 8, wherein: A pan platform is arranged on the top of the main frame, and the laser measuring instrument is fixed on the pan platform.

10. The laser measuring device according to claim 9, wherein A plurality of hinge seats are arranged in an array on the outer peripheral wall of one end of the main frame close to the pan-tilt head. The hinge seats correspond to the inner legs one by one, and the inner legs are installed on the hinge seats through pivot rotation.

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