Distance measuring device for topographic surveying and mapping

Abstract

The utility model relates to the technical field of topographic surveying and mapping devices, and discloses a distance measuring device for topographic surveying and mapping, which comprises a fixed rod, a lifting rod is slidably connected in the fixed rod, a laser surveying and mapping instrument is slidably connected in the lifting rod, and an adjusting table is arranged at the middle section of the fixed rod. The interior of the adjusting table extends into the lifting rod to be provided with an adjusting mechanism, and the interior of the fixing rod extends to the exterior to be provided with a supporting mechanism. According to the distance measuring device for topographic surveying and mapping, the height of the laser surveying and mapping instrument is accurately adjusted through the height adjusting assembly, different surveying and mapping height requirements can be met, operation is convenient, accurate measurement data can be obtained, meanwhile, the angle adjusting assembly can rapidly adapt to measurement requirements of different directions and angles, and the measurement accuracy is improved. And stable three-point support is provided through the supporting mechanism, so that the device can be kept balanced under different topographic conditions, and the overall stability is enhanced.

Description

Technical Field

[0001] This utility model relates to the technical field of topographic surveying devices, specifically a distance measuring device for topographic surveying. Background Technology

[0002] Topographic mapping is a crucial foundation for geographic information systems (GIS) and geospatial data acquisition, widely applied in urban planning, land management, environmental protection, engineering construction, and disaster monitoring. Distance measurement is one of the most fundamental and critical components of topographic mapping. The accuracy and efficiency of distance measurement devices directly impact the precision and reliability of topographic data.

[0003] According to the description in the patent application CN 220960057U, "This utility model relates to the field of surveying device technology and discloses a surveying distance measuring device, including a rangefinder body, a support leg, and an adjusting column that is snapped into the inner wall of a fixed column. A limiting ring for limiting is fixedly connected to the outer surface of the limiting plate, and a strap for fixing is inserted into the inner wall of the limiting ring. An anti-slip pad for anti-slip is snapped into the bottom end of the support leg, and an adjusting bolt for adjustment is threaded onto one side of the support leg. An extension mechanism for extension is snapped into the bottom of the inner wall of the fixed column. This surveying distance measuring device, through the setting of the fixing ring, strap, and anti-slip pad, with the limiting ring connected to the outer surface of the limiting plate, allows the rangefinder body to be placed on the upper surface of the limiting plate and then tightened by the strap. The anti-slip pad is snapped into the bottom end of the support leg and the extension mechanism, which helps to improve the stability of the rangefinder body and thus prevents accidental collisions that could cause malfunctions during use."

[0004] Regarding the above description, the applicant believes the following problems exist: The surveying instrument of the device is clipped onto the limiting plate, which is fixedly connected to the top of the adjusting column. This means that in actual use, to measure terrain distances in different directions, the entire device must be rotated. However, it is difficult to precisely control the rotation angle when rotating the entire device, which increases measurement errors. To measure terrain distances in multiple specific angular directions, the device needs to be repositioned and calibrated after each rotation, which will consume time and effort and affect measurement efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a distance measuring device for topographic mapping. It solves the technical problem that existing fixed-installation surveying instruments require rotating the entire device when measuring distances in different directions, making it difficult to accurately control the rotation angle and wasting time and effort. The device achieves the goal of easily rotating the surveying instrument to adjust the angle and quickly adapting to measurement needs in different directions and angles.

[0006] The purpose of this invention is to provide a distance measuring device for topographic mapping to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a distance measuring device for topographic mapping, comprising a fixed rod, a lifting rod slidably connected inside the fixed rod, a laser mapping instrument slidably connected inside the lifting rod, an adjustment platform provided at the middle section of the fixed rod, an adjustment mechanism provided inside the adjustment platform extending into the lifting rod, and a support mechanism provided inside the fixed rod extending to the outside.

[0008] The adjustment mechanism includes a height adjustment component and an angle adjustment component. The height adjustment component is located inside the adjustment platform and extends into the fixed rod. The angle adjustment component is located at the bottom of the laser surveying instrument and extends into the lifting rod.

[0009] Preferably, the height adjustment assembly includes an adjustment handle, which is rotatably connected inside the adjustment platform. An adjustment worm gear is fixedly connected to one end of the adjustment handle near the fixed rod. An adjustment worm wheel is rotatably connected inside the adjustment platform, and a lifting screw is threaded inside the adjustment worm wheel.

[0010] Preferably, the adjusting worm and the adjusting worm wheel mesh with each other, and one end of the lifting screw is rotatably connected inside the lifting rod.

[0011] Preferably, the angle adjustment assembly includes a fixed plate, which is slidably connected inside the lifting rod. A connecting rod is rotatably connected inside the fixed plate, and a rotating tooth is fixedly connected to the surface of the connecting rod. A return spring is fixedly connected between the bottom of the fixed plate and the inner wall of the lifting rod.

[0012] Preferably, the rotating tooth has a tooth groove at a position corresponding to the inner wall of the top of the lifting rod, the rotating tooth meshes with the tooth groove, and the connecting rod is fixedly connected to the bottom of the laser mapping instrument.

[0013] Preferably, the support mechanism includes a fixed ring, which is fixedly connected to the surface of the fixed rod. A support frame is rotatably connected to the outside of the fixed ring. A fixed leg is rotatably connected to the end of the support frame away from the fixed ring. A support connecting rod is rotatably connected between the support frame and the inner wall of the fixed rod.

[0014] Preferably, a groove is provided at the end of the supporting link near the fixed link, corresponding to the position of the fixed link, and the supporting link is slidably connected inside the groove. There are three supporting frames, three fixed legs, and three supporting links, which are distributed in a circular shape on the outside of the fixed ring.

[0015] Compared with the prior art, this utility model provides a distance measuring device for topographic mapping, which has the following beneficial effects:

[0016] 1. This topographic surveying distance measuring device features a height adjustment component. By rotating the adjustment handle, the meshing transmission between the adjusting worm and the adjusting worm wheel drives the lifting screw, causing the lifting rod to move up and down. This allows for precise height adjustment of the laser surveying instrument, meeting various surveying height requirements. It is easy to operate and helps obtain accurate measurement data. Simultaneously, the angle adjustment component allows for easy angle adjustment by pressing the laser surveying instrument to disengage the rotating gear from the tooth groove. Releasing the pressure causes the return spring to re-engage the rotating gear, fixing the angle. This simple and quick operation allows for rapid adaptation to measurement needs in different directions and angles. For example, in complex terrain surveying, the surveying angle can be flexibly changed.

[0017] 2. The distance measuring device for topographic mapping has a support mechanism consisting of three circularly distributed support frames, fixed legs, and support rods, providing stable three-point support. This distribution method enables the device to maintain balance under different terrain conditions, enhances overall stability, and effectively prevents measurement errors caused by device shaking or tilting during the measurement process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the height adjustment component of this utility model;

[0022] Figure 4 This is a schematic diagram of the angle adjustment component of this utility model;

[0023] Figure 5 This is a schematic diagram of the support mechanism structure of this utility model.

[0024] In the diagram: 1. Fixed rod; 2. Lifting rod; 3. Laser surveying instrument; 4. Adjusting platform; 5. Adjusting mechanism; 51. Height adjustment assembly; 511. Adjusting crank; 512. Adjusting worm gear; 513. Adjusting worm wheel; 514. Lifting screw; 52. Angle adjustment assembly; 521. Fixed plate; 522. Connecting rod; 523. Rotating gear; 524. Return spring; 6. Support mechanism; 61. Fixed ring; 62. Support frame; 63. Fixed support leg; 64. Support connecting rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example 1:

[0028] Based on current technology, surveying instruments require rotating the entire device when measuring distances in different directions. This is difficult to control precisely, and it wastes time and effort. Please refer to [link to relevant documentation]. Figure 1-4 This utility model provides a technical solution: a distance measuring device for topographic mapping, including a fixed rod 1, a lifting rod 2 slidably connected inside the fixed rod 1, a laser mapping instrument 3 slidably connected inside the lifting rod 2, an adjustment platform 4 set at the middle section of the fixed rod 1, an adjustment mechanism 5 set inside the adjustment platform 4 extending into the lifting rod 2, and a support mechanism 6 set inside the fixed rod 1 extending to the outside.

[0029] The adjustment mechanism 5 includes a height adjustment component 51 and an angle adjustment component 52. The height adjustment component 51 is located inside the adjustment platform 4 and extends into the fixed rod 1. The angle adjustment component 52 is located at the bottom of the laser surveying instrument 3 and extends into the lifting rod 2.

[0030] Furthermore, the height adjustment component 51 includes an adjustment handle 511, which is rotatably connected inside the adjustment platform 4. An adjustment worm gear 512 is fixedly connected to one end of the adjustment handle 511 near the fixed rod 1. An adjustment worm wheel 513 is rotatably connected inside the adjustment platform 4. A lifting screw 514 is threaded inside the adjustment worm wheel 513. The use of a worm wheel and worm gear combination allows for more precise adjustment of the height of the laser surveying instrument 3.

[0031] Furthermore, the adjusting worm 512 and the adjusting worm wheel 513 mesh with each other, and the top end of the lifting screw 514 is rotatably connected inside the lifting rod 2, which facilitates the adjustment of the height of the laser surveying instrument 3 and can meet the needs of different surveying heights.

[0032] Furthermore, the angle adjustment component 52 includes a fixing plate 521, which is slidably connected inside the lifting rod 2. A connecting rod 522 is rotatably connected inside the fixing plate 521. A rotating tooth 523 is fixedly connected to the surface of the connecting rod 522. A return spring 524 is fixedly connected between the bottom of the fixing plate 521 and the inner wall of the lifting rod 2 to facilitate locking the fixing plate 521 and ensure that the laser surveying instrument 3 will not shake after the angle is adjusted.

[0033] Furthermore, the rotating tooth 523 is provided with a tooth groove at the corresponding position on the inner wall of the top of the lifting rod 2. The rotating tooth 523 meshes with the tooth groove. The connecting rod 522 is fixedly connected to the bottom of the laser surveying instrument 3. Pressing the laser surveying instrument 3 causes the rotating tooth 523 to disengage from the tooth groove, so the surveying instrument can be easily rotated to adjust the angle, which can quickly adapt to the measurement needs of different directions and angles.

[0034] Example 2:

[0035] Please refer to the technical issues that may arise from existing technologies, such as difficulty in maintaining balance under different terrain conditions. Figure 5 In conjunction with Embodiment 1, the support mechanism 6 includes a fixed ring 61, which is fixedly connected to the surface of the fixed rod 1. A support frame 62 is rotatably connected to the outside of the fixed ring 61. A fixed leg 63 is rotatably connected to the end of the support frame 62 away from the fixed ring 61. A support connecting rod 64 is rotatably connected between the support frame 62 and the inner wall of the fixed rod 1.

[0036] Furthermore, a groove is provided at the end of the support rod 64 near the fixed rod 1, corresponding to the fixed rod 1. The support rod 64 is slidably connected inside the groove. There are three support frames 62, three fixed legs 63, and three support rods 64, which are distributed in a circular shape on the outside of the fixed ring 61, providing stable three-point support. This distribution method enables the device to maintain balance under different terrain conditions and enhances the overall stability.

[0037] In actual operation, when this device is used, the positions of the support frame 62 and the fixed leg 63 are adjusted according to the working environment. The support connecting rod 64 plays an auxiliary supporting role and the fixed rod 1 is fixed. Then, the adjustment handle 511 is rotated according to the desired measurement height, which drives the adjustment worm 512 to rotate, thereby driving the adjustment worm wheel 513 to rotate, which in turn drives the lifting screw 514 and the lifting rod 2 to move up and down, adjusting the height of the laser surveying instrument 3. When it is necessary to adjust the measurement angle, simply press the laser surveying instrument 3 to drive the connecting rod 522 and the fixed plate 521 to move down, thereby driving the rotating tooth 523 away from the tooth groove set on the inner wall of the lifting rod 2. At this time, the laser surveying instrument 3 can be rotated to adjust the measurement angle. After the adjustment is completed, the return spring 524 will drive the fixed plate 521 to move up, thereby causing the rotating tooth 523 to re-mesh with the tooth groove and fix the angle of the laser surveying instrument 3. When the measurement is completed, the support frame 62 and the fixed leg 63 can be stored away.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A distance measuring device for topographic mapping, comprising a fixed rod (1), characterized in that: The fixed rod (1) is slidably connected to the lifting rod (2), the lifting rod (2) is slidably connected to the laser surveying instrument (3), the fixed rod (1) is provided with an adjustment platform (4) at the middle section, the adjustment platform (4) extends into the lifting rod (2) and is provided with an adjustment mechanism (5), the fixed rod (1) extends into the outside and is provided with a support mechanism (6). The adjustment mechanism (5) includes a height adjustment component (51) and an angle adjustment component (52). The height adjustment component (51) is located inside the adjustment platform (4) and extends into the fixed rod (1). The angle adjustment component (52) is located at the bottom of the laser surveying instrument (3) and extends into the lifting rod (2).

2. The distance measuring device for topographic mapping according to claim 1, characterized in that: The height adjustment assembly (51) includes an adjustment handle (511), which is rotatably connected inside the adjustment platform (4). An adjustment worm gear (512) is fixedly connected to one end of the adjustment handle (511) near the fixed rod (1). An adjustment worm wheel (513) is rotatably connected inside the adjustment platform (4), and a lifting screw (514) is threaded inside the adjustment worm wheel (513).

3. The distance measuring device for topographic mapping according to claim 2, characterized in that: The adjusting worm (512) and the adjusting worm wheel (513) mesh with each other, and one end of the lifting screw (514) is rotatably connected inside the lifting rod (2).

4. The distance measuring device for topographic mapping according to claim 1, characterized in that: The angle adjustment assembly (52) includes a fixing plate (521), which is slidably connected inside the lifting rod (2). A connecting rod (522) is rotatably connected inside the fixing plate (521). A rotating tooth (523) is fixedly connected to the surface of the connecting rod (522). A return spring (524) is fixedly connected between the bottom of the fixing plate (521) and the inner wall of the lifting rod (2).

5. A distance measuring device for topographic mapping according to claim 4, characterized in that: The rotating tooth (523) has a tooth groove at the corresponding position on the top inner wall of the lifting rod (2), the rotating tooth (523) meshes with the tooth groove, and the connecting rod (522) is fixedly connected to the bottom of the laser surveying instrument (3).

6. The distance measuring device for topographic mapping according to claim 1, characterized in that: The support mechanism (6) includes a fixed ring (61), which is fixedly connected to the surface of the fixed rod (1). A support frame (62) is rotatably connected to the outside of the fixed ring (61). A fixed leg (63) is rotatably connected to the end of the support frame (62) away from the fixed ring (61). A support connecting rod (64) is rotatably connected between the support frame (62) and the inner wall of the fixed rod (1).

7. A distance measuring device for topographic mapping according to claim 6, characterized in that: The support link (64) has a groove at the end near the fixed rod (1) corresponding to the fixed rod (1). The support link (64) is slidably connected inside the groove. The number of the support frame (62), the fixed leg (63) and the support link (64) are all three, and they are distributed in a circular shape on the outside of the fixed ring (61).

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