Distance testing device for geographic information surveying and mapping
By designing an automatically adjusted distance testing device, the problem that traditional tripods are difficult to provide stable support on uneven grounds is solved, and high-precision measurements in geographic surveying and mapping are achieved, reducing measurement errors and manpower operations.
Patent Information
- Application Number
- CN202421123344.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-20
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In geographic surveying, traditional tripods are difficult to provide stable support on uneven grounds, resulting in increased measurement errors and affecting accuracy.
A distance testing device for geographic information mapping is designed, including a base, rotating legs and telescopic mechanism. Through the cooperation of the rotating and telescopic mechanism, the angle and length of the legs are automatically adjusted to form a stable support frame and reduce manpower operation. , improve adaptability and accuracy.
It realizes automatic adjustment of the support structure on uneven ground, reduces measurement errors, improves the accuracy and stability of surveying and mapping, and saves manpower operations.
Smart Images
Figure CN222209708U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a distance testing device, in particular to a distance testing device for geographic information surveying and mapping. Background Art
[0002] Geographic surveying and mapping is the activity of measuring, collecting, and expressing the shape, size, spatial position, and attributes of natural geographical elements or artificial facilities on the surface, as well as processing and providing the acquired data, information, and results. Simply put, geographic surveying and mapping is the process of drawing the actual terrain, landforms, and geographical locations on drawings in a certain proportion using various equipment. It is widely used in daily life, national natural resources management, emergency monitoring, and many other aspects.
[0003] When conducting distance tests in geographic surveying and mapping, commonly used instruments include total stations, theodolites, GPS, etc. No matter which instrument is used, a stable foundation must be prepared in advance to support the instrument to facilitate accurate measurement; and the most commonly used is the traditional instrument tripod. During use, the length of the tripod legs and the angle with the ground are manually adjusted to find a roughly suitable measurement state, and accurate calibration is impossible.
[0004] Since geographic surveying often requires entering areas with relatively uneven ground such as mountainous areas, the complex terrain and heavy equipment will increase the difficulty of calibrating traditional tripods, and the inability to provide a stable basic support for precision instruments such as total stations will increase the probability of measurement errors and is not conducive to the accurate implementation of geographic surveying. Utility Model Content
[0005] The purpose of the utility model is to provide a distance testing device for geographic information surveying and mapping, so as to solve the problems raised in the above-mentioned background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A distance testing device for geographic information surveying and mapping comprises a base, and a distance meter fixedly mounted on the base;
[0008] A plurality of groups of rotating legs are rotatably mounted on the base, and the plurality of groups of rotating legs are equidistantly distributed along the circumferential direction of the base, and a sliding leg is slidably engaged with the rotating legs; a rotating mechanism is provided on the base, and the rotating mechanism can automatically drive the rotating legs to rotate after the rotating legs pass the equilibrium position, so as to continue to increase or decrease the angle between the rotating legs and the base;
[0009] The base is also provided with a telescopic mechanism, which can drive the sliding leg to slide away from or close to the base along the length direction of the rotating leg when the rotating mechanism is in motion, so as to increase or decrease the distance between the sliding leg and the base.
[0010] As described above, the distance testing device for geographic information surveying and mapping: the rotating mechanism includes multiple groups of first spring columns fixedly mounted on the base, the multiple groups of first spring columns are equidistantly distributed along the circumferential direction of the base and correspond to the rotating legs, each of the rotating legs is fixedly mounted with a second spring column, and the first spring column and the second spring column are connected via a rotating spring.
[0011] The distance testing device for geographic information surveying and mapping as described above: the telescopic mechanism includes a plurality of large bevel gears fixedly mounted on the base, the plurality of large bevel gears are symmetrically arranged in pairs to form a bevel gear set, the bevel gear set is equidistantly distributed along the circumferential direction of the base and corresponds to the rotating legs; a small bevel gear meshing with the large bevel gear is fixedly mounted on the rotating leg, and a rotating shaft is fixedly mounted on the end of the small bevel gear away from the large bevel gear.
[0012] As described above, the distance testing device for geographic information surveying and mapping: the telescopic mechanism also includes a threaded rod fixedly mounted on the rotating shaft, and an internally threaded sleeve threadedly connected to the threaded rod is fixedly mounted on the sliding leg; the thread directions of the two threaded rods on the rotating leg are opposite.
[0013] As described above, the distance testing device for geographic information surveying and mapping: a limiting mechanism is arranged between the rotating leg and the sliding leg, the limiting mechanism comprises a limiting sleeve fixedly mounted on the sliding leg, a limiting block is slidably engaged in the limiting sleeve, a reset block is rotatably mounted on the limiting block, a reset spring is movably mounted in the limiting sleeve, two ends of the reset spring respectively contact with the limiting block and the inner wall of the sliding leg, a plurality of limiting grooves which cooperate with the limiting block are equidistantly provided on the rotating leg; a sliding groove which slidably cooperates with the reset block is provided on the rotating leg.
[0014] As described above, the distance testing device for geographic information surveying and mapping: a plurality of limit screws are threadedly mounted on the base, and the limit screws are equidistantly distributed along the circumferential direction of the base and correspond to the rotating legs.
[0015] The distance testing device for geographic information surveying and mapping as described above: a ground-piercing spearhead is fixedly mounted on the sliding leg, the ground-piercing spearhead is made of a hard material, and a pedal is fixedly mounted on the ground-piercing spearhead.
[0016] Compared with the prior art, the beneficial effects of the utility model are: the rotating legs are driven to rotate automatically and the sliding legs are driven to slide by the mutual cooperation of the rotating mechanism and the telescopic mechanism, that is, the length of the legs is increased while the angle between the legs and the base is increased, and after the device is unfolded, the unfolded state will be maintained without retraction under the cooperation between the rotating spring, the limit block and the limit groove, which saves manpower and keeps the device relatively stable. At the same time, since each group of legs is controlled separately, that is, the angle and length of each group of legs can be controlled separately, the adaptability of the terrain is greatly improved. Moreover, during the surveying and mapping process, the angle and length of each group of legs can be fine-tuned by the limit screw rod, which facilitates the instrument to find a more suitable surveying and mapping state and greatly reduces the probability of measurement errors. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of a distance testing device for geographic information surveying and mapping.
[0018] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle.
[0019] Figure 3 This is a structural schematic diagram of a distance testing device for geographic information surveying and mapping from another perspective.
[0020] Figure 4 for Figure 3 Schematic diagram of the structure at B in the figure.
[0021] Figure 5 The present invention is a schematic diagram of the structure of the rotating legs and the sliding legs in the distance testing device for geographic information surveying and mapping.
[0022] Figure 6 This is a schematic diagram of the structure of the rotating legs in the distance testing device for geographic information surveying and mapping.
[0023] Figure 7 for Figure 6 A schematic diagram of the structure from another perspective.
[0024] Figure 8 This is a schematic diagram of the structure of the rotating mechanism in the distance testing device for geographic information surveying and mapping.
[0025] Fig. 9 for Figure 8 Schematic diagram of the structure from a cross-sectional perspective.
[0026] Fig.10 This is a schematic diagram of the structure of the sliding legs in the distance testing device for geographic information surveying and mapping.
[0027] Fig.11 for Fig.10 Schematic diagram of the structure from a cross-sectional perspective.
[0028] Fig.12 This is a schematic diagram of the structure of the limit mechanism in the distance testing device for geographic information surveying and mapping.
[0029] Fig.13 This is a schematic diagram of the structure of the telescopic mechanism in the distance testing device for geographic information surveying and mapping.
[0030] In the figure: 1, base; 101, first spring column; 102, large bevel gear; 103, limit screw;
[0031] 2. Rangefinder;
[0032] 3. Rotating support leg; 301. Slide groove; 302. Limiting groove; 303. Second spring column; 304. Small bevel gear; 305. Rotating shaft; 306. Threaded rod;
[0033] 4. Sliding leg; 401. Reset block; 402. Limit block; 403. Limit sleeve; 404. Reset spring; 405. Internal thread sleeve;
[0034] 5. Turn the spring. DETAILED DESCRIPTION
[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0036] See also Figures 1 to 13 As an embodiment of the utility model, the distance testing device for geographic information surveying and mapping comprises a base 1, and a distance meter 2 fixedly mounted on the base 1;
[0037] A plurality of groups of rotating legs 3 are rotatably mounted on the base 1, and the plurality of groups of rotating legs 3 are equidistantly distributed along the circumferential direction of the base 1, and a sliding leg 4 is slidably engaged with the rotating legs 3; a rotating mechanism is provided on the base 1, and the rotating mechanism can automatically drive the rotating legs 3 to rotate after the rotating legs 3 pass the equilibrium position, so as to continue to increase or decrease the angle between the rotating legs 3 and the base 1;
[0038] The base 1 is also provided with a telescopic mechanism, which can drive the sliding leg 4 to slide away from or close to the base 1 along the length direction of the rotating leg 3 when the rotating mechanism is in motion, so as to increase or decrease the distance between the sliding leg 4 and the base 1.
[0039] In this embodiment, when the distance test device needs to be used, the device is first stabilized and then the test is performed using the distance meter 2 .
[0040] In this embodiment, the model of the above-mentioned rangefinder 2 can be the APRY PRO2500 telescope rangefinder, or it can be other models of rangefinders, which is not limited in this application.
[0041] The stabilizing device is specifically as follows: first, the rotating leg 3 is rotated to make it pass the equilibrium position, and then the rotating leg 3 is driven by the rotating mechanism to rotate along the axis of the rotating connection with the base 1, and the angle between the rotating leg 3 and the base 1 is continuously increased. While increasing the angle, the telescopic mechanism is actuated to drive the sliding leg 4 to slide away from the base 1 along the length direction of the rotating leg 3, thereby increasing the distance between the sliding leg 4 and the base 1, and then the sliding leg 4 is connected to the ground. Since there are multiple groups of rotating legs 3 and sliding legs 4 on the base 1, a stable support frame will be formed after all the legs are spread out and stand on the ground.
[0042] After the use test is completed, the sliding legs 4 are retracted into the rotating legs 3 through the cooperation between the rotating mechanism and the telescopic mechanism, and the plurality of rotating legs 3 are retracted to be perpendicular to the base 1 .
[0043] Since the angle between each rotating leg 3 and the base 1 is controlled individually, and the distance between each sliding leg 4 and the base 1 is controlled in cooperation with the rotating mechanism and the telescopic mechanism, the device can still stand stably on the ground without overturning by controlling the angle and distance when the ground is uneven, which is conducive to accurate distance testing.
[0044] Since it is only necessary to make the rotating leg 3 pass the equilibrium position, and the subsequent actions are all powered by the rotating mechanism, the entire testing device is relatively labor-saving.
[0045] As a further solution of the present utility model, the rotating mechanism includes multiple groups of first spring columns 101 fixedly mounted on the base 1, and the multiple groups of first spring columns 101 are equidistantly distributed along the circumferential direction of the base 1 and correspond to the rotating legs 3. A second spring column 303 is fixedly mounted on each of the rotating legs 3, and the first spring columns 101 and the second spring columns 303 are connected via a rotating spring 5.
[0046] In this embodiment, when the rotating leg 3 moves to the connecting line between the first spring column 101 and the second spring column 303 under the action of external force, it is a balanced position, and the rotating leg 3 is subjected to balanced force at this position.
[0047] When the rotating leg 3 passes the equilibrium position, that is, the line connecting the first spring column 101 and the second spring column 303 is not at the same position as the rotating leg 3, at this time, under the action of the elastic force of the rotating spring 5, the rotating spring 5 will pull the rotating leg 3 to continue rotating until the rotating leg 3 is limited, and this process does not require the help of external force.
[0048] As a further solution of the utility model, the telescopic mechanism includes a plurality of large bevel gears 102 fixedly mounted on the base 1, and the plurality of large bevel gears 102 are symmetrically arranged in pairs to form a bevel gear group, and the bevel gear group is equidistantly distributed along the circumferential direction of the base 1 and corresponds to the rotating leg 3; a small bevel gear 304 meshing with the large bevel gear 102 is fixedly mounted on the rotating leg 3, and a rotating shaft 305 is fixedly mounted on the end of the small bevel gear 304 away from the large bevel gear 102.
[0049] In this embodiment, during the rotation of the rotating leg 3, the large bevel gear 102 and the small bevel gear 304 will always be meshed. Since the large bevel gear 102 is fixed, the small bevel gear 304 will rotate during the meshing process, so the rotating shaft 305 also rotates.
[0050] Since the two large bevel gears 102 in the bevel gear set are arranged in opposition, the rotation directions of the two small bevel gears 304 meshing with the large bevel gears 102 are opposite, that is, the rotation directions of the two rotating shafts 305 are opposite.
[0051] When the rotating leg 3 rotates, that is, when the large bevel gear 102 and the small bevel gear 304 are meshing, the small bevel gear 304 rotates around the large bevel gear 102 at a very small angle, while the small bevel gear 304 rotates a large number of times.
[0052] As a further solution of the utility model, the telescopic mechanism also includes a threaded rod 306 fixedly mounted on the rotating shaft 305, and an internal threaded sleeve 405 threadedly connected to the threaded rod 306 is fixedly mounted on the sliding leg 4; the thread directions of the two threaded rods 306 on the rotating leg 3 are opposite.
[0053] In this embodiment, when the rotating shaft 305 rotates, it drives the threaded rod 306 to rotate, and the threaded rod 306 drives the internal threaded sleeve 405 to slide along the length direction of the threaded rod 306 through threaded engagement. The two rotating shafts 305 rotate in opposite directions, and the threaded directions of the two threaded rods 306 are opposite. Through the threaded engagement of the two groups of threaded rods 306 and the internal threaded sleeve 405, the internal threaded sleeve 405 slides more smoothly, so that the sliding leg 4 slides more smoothly along the length direction of the rotating leg 3.
[0054] As a further solution of the utility model, a limiting mechanism is arranged between the rotating leg 3 and the sliding leg 4, and the limiting mechanism includes a limiting sleeve 403 fixedly mounted on the sliding leg 4, a limiting block 402 slidably engaged in the limiting sleeve 403, a reset block 401 rotatably mounted on the limiting block 402, a reset spring 404 movably mounted in the limiting sleeve 403, and the two ends of the reset spring 404 respectively contact the limiting block 402 and the inner wall of the sliding leg 4, a plurality of limiting grooves 302 cooperating with the limiting block 402 are equidistantly provided on the rotating leg 3; a sliding groove 301 slidably cooperating with the reset block 401 is provided on the rotating leg 3.
[0055] In this embodiment, the limiting block 402 is wedge-shaped, and a surface close to the base 1 is a plane parallel to the cross section of the sliding leg 4, and a surface away from the base 1 is an inclined surface arranged obliquely.
[0056] When the telescopic mechanism moves to drive the sliding leg 4 to slide, the inclined surface of the limit block 402 will cooperate with the inner wall of the rotating leg 3, and the limit block 402 will slide inward inside the limit sleeve 403 through the extrusion of the inner wall, and compress the return spring 404. The limit block 402 will keep compressing the return spring 404 and slide along with the sliding of the sliding leg 4. Until the sliding leg 4 reaches the target position, the inner wall of the rotating leg 3 will be out of contact with the limit block 402, and the limit block 402 will cooperate with the limit groove 302 under the elastic force of the return spring 404. Under the action of gravity, the sliding leg 4 will tend to slide closer to the base 1. At this time, the plane of the limit block 402 will conflict with the inner wall of the limit groove 302, and the sliding tendency of the sliding leg 4 will be offset by this conflict.
[0057] The reset block 401 has two states: a vertical state and a non-vertical state. In the vertical state, the reset block 401 slides in the slide groove 301 while the limit block 402 slides, and the reset block 401 is pushed outward by the limit block 402 to displace while the limit block 402 compresses the reset spring 404.
[0058] When the device is finished using, first rotate the reset block 401 to make it non-vertical. Since the reset block 401 is restricted by the slide slot 301 and cannot be rotated, it is necessary to pull the reset block 401 to make it free from the restriction of the slide slot 301, and then transform the reset block 401 into a non-vertical state. In this process, the limit block 402 will be pulled into the limit sleeve 403, the limit block 402 will be out of contact with the limit slot 302, the reset spring 404 will be compressed, and at the same time, under the elastic force of the reset spring 404, the reset block 401 in the non-vertical state will be tightly in contact with the outer wall of the sliding leg 4.
[0059] When there is no restriction, the rotating leg 3 is rotated inward to pass the equilibrium position, and the sliding leg 4 is retracted into the rotating leg 3 under the cooperation of the rotating mechanism and the telescopic mechanism, and the rotating leg 3 and the base 1 are perpendicular to each other.
[0060] As a further solution of the utility model, a plurality of limit screws 103 are threadedly mounted on the base 1 , and the limit screws 103 are equidistantly distributed along the circumferential direction of the base 1 and correspond to the rotating legs 3 .
[0061] In this embodiment, when the rotating leg 3 rotates driven by the rotating mechanism, it will conflict with the limit screw 103, and the conflicting position is the maximum rotation distance of the rotating leg 3. By rotating the limit screw 103, the limit screw 103 will slide upward or downward in the vertical direction of the base 1 under the action of the thread, and the conflicting position between the rotating leg 3 and the limit screw 103 is controlled by controlling the downward displacement distance of the limit screw 103 in the vertical direction of the base 1.
[0062] As a further solution of the utility model, a ground-piercing spear head is fixedly installed on the sliding leg 4, the ground-piercing spear head is made of a hard material, and a pedal is fixedly installed on the ground-piercing spear head.
[0063] In this embodiment, after the device bracket is opened, downward pressure is applied to the pedal to allow the ground-piercing spear head to be inserted into the ground, which is beneficial for maintaining the stability of the device.
[0064] The above embodiments are exemplary rather than restrictive, so without departing from the spirit or basic features of the present invention, the technical solutions of the present invention that can be implemented in other specific forms are all included in the present invention.
Claims
1. A distance testing device for geographic information surveying and mapping, comprising a base (1), and a distance meter (2) fixedly mounted on the base (1); It is characterized in that A plurality of groups of rotating legs (3) are rotatably mounted on the base (1), the plurality of groups of rotating legs (3) being equidistantly distributed along the circumferential direction of the base (1), and a sliding leg (4) is slidably engaged with the rotating leg (3); a rotating mechanism is provided on the base (1), and the rotating mechanism can automatically drive the rotating leg (3) to rotate after the rotating leg (3) passes the equilibrium position, so as to continue to increase or decrease the angle between the rotating leg (3) and the base (1); The base (1) is also provided with a telescopic mechanism, which can drive the sliding leg (4) to slide away from or towards the base (1) along the length direction of the rotating leg (3) when the rotating mechanism is in motion, so as to increase or decrease the distance between the sliding leg (4) and the base (1).
2. A distance testing device for geographic information surveying and mapping according to claim 1, characterized in that: The rotating mechanism comprises a plurality of groups of first spring columns (101) fixedly mounted on the base (1); the plurality of groups of first spring columns (101) are equidistantly distributed along the circumferential direction of the base (1) and correspond to the rotating legs (3); a second spring column (303) is fixedly mounted on each of the rotating legs (3); the first spring columns (101) and the second spring columns (303) are connected via a rotating spring (5).
3. A distance testing device for geographic information surveying and mapping according to claim 2, characterized in that: The telescopic mechanism comprises a plurality of large bevel gears (102) fixedly mounted on the base (1); the plurality of large bevel gears (102) are symmetrically arranged in pairs to form a bevel gear set; the bevel gear sets are equidistantly distributed along the circumferential direction of the base (1) and correspond to the rotating legs (3); a small bevel gear (304) meshing with the large bevel gear (102) is fixedly mounted on the rotating legs (3); a rotating shaft (305) is fixedly mounted on one end of the small bevel gear (304) away from the large bevel gear (102).
4. A distance testing device for geographic information surveying and mapping according to claim 3, characterized in that: The telescopic mechanism also includes a threaded rod (306) fixedly mounted on the rotating shaft (305); an internal threaded sleeve (405) threadedly connected to the threaded rod (306) is fixedly mounted on the sliding leg (4); and the thread directions of the two threaded rods (306) on the rotating leg (3) are opposite.
5. A distance testing device for geographic information surveying and mapping according to claim 4, characterized in that: A limiting mechanism is arranged between the rotating leg (3) and the sliding leg (4), the limiting mechanism comprising a limiting sleeve (403) fixedly mounted on the sliding leg (4), a limiting block (402) slidably engaged in the limiting sleeve (403), a reset block (401) rotatably mounted on the limiting block (402), a reset spring (404) movably mounted in the limiting sleeve (403), two ends of the reset spring (404) respectively abutting against the limiting block (402) and the inner wall of the sliding leg (4), a plurality of limiting grooves (302) cooperating with the limiting block (402) are equidistantly arranged on the rotating leg (3); and a sliding groove (301) slidably cooperating with the reset block (401) is arranged on the rotating leg (3).
6. A distance testing device for geographic information surveying and mapping according to claim 5, characterized in that: A plurality of limit screw rods (103) are threadedly mounted on the base (1); the limit screw rods (103) are equidistantly distributed along the circumferential direction of the base (1) and correspond to the rotating legs (3).
7. A distance testing device for geographic information surveying and mapping according to claim 1, characterized in that: A ground-piercing spear head is fixedly mounted on the sliding leg (4), the ground-piercing spear head is made of a hard material, and a pedal is fixedly mounted on the ground-piercing spear head.