Auxiliary positioning device for topographic engineering surveying instrument

Abstract

The utility model relates to engineering surveying and mapping instrument positioning technical field, specifically is a kind of auxiliary positioning device for topographic engineering surveying and mapping instrument. Including mounting plate, horizontal adjusting mechanism is movably installed in mounting plate bottom, the connecting plate is fixedly connected in horizontal adjusting mechanism bottom, and the stepless telescopic mechanism is movably installed in connecting plate bottom;The utility model is through horizontal adjusting mechanism, utilizes main support shaft to support mounting plate bottom center, when the inclination of connecting plate is less, the angle fine adjustment can be realized by adjusting three groups of auxiliary support shaft respectively, reaches the effect of improving the horizontal adjusting precision of auxiliary positioning device for topographic engineering surveying and mapping instrument, solves the problem of insufficient horizontal adjusting precision of auxiliary positioning device for topographic engineering surveying and mapping instrument, by stepless telescopic mechanism, fixed link and telescopic link cooperate stepless telescopic adjustment, reaches the effect of improving the telescopic support adjustment convenience of auxiliary positioning device for topographic engineering surveying and mapping instrument.

Description

Technical Field

[0001] This utility model relates to the field of positioning technology for engineering surveying instruments, specifically an auxiliary positioning device for topographic engineering surveying instruments. Background Technology

[0002] Topographic engineering surveying work typically uses various surveying instruments, including levels, theodolites, distance measuring instruments, and total stations, etc., to collect, process, and output data for surveying operations. This is to meet the various orientation, distance measurement, angle measurement, height measurement, mapping, and photogrammetry needs required in the planning, design, construction, and operation management stages of engineering construction. Auxiliary positioning benchmarks are often used for auxiliary positioning during the surveying process.

[0003] Currently, existing auxiliary positioning devices require leveling due to terrain conditions. When using surveying instruments on complex terrain, it is difficult to accurately level the instrument using only multi-level buckle adjustment, gear and rack adjustment, or thread adjustment, resulting in measurement errors. Utility Model Content

[0004] To address the shortcomings of existing technologies, such as the insufficient adaptability of auxiliary positioning devices for topographic engineering surveying instruments to complex terrain and the lack of horizontal adjustment accuracy leading to surveying errors, this utility model proposes an auxiliary positioning device for topographic engineering surveying instruments.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an auxiliary positioning device for a topographic engineering surveying instrument, including a mounting plate, a horizontal adjustment mechanism is movably mounted on the bottom of the mounting plate, a connecting plate is fixedly connected to the bottom of the horizontal adjustment mechanism, and a stepless telescopic mechanism is movably mounted on the bottom of the connecting plate.

[0006] The horizontal adjustment mechanism includes a first support sleeve, which is fixedly connected to the top of the connecting plate. The first support sleeve has a first spherical groove inside its inner cavity. A main support shaft is rotatably connected within the first spherical groove. The top end of the main support shaft is fixedly connected to the bottom of the mounting plate. A fixed sleeve is fixedly connected to the top of the connecting plate near its edge. A threaded sleeve is rotatably connected to the top of the outer wall of the fixed sleeve. A threaded rod is slidably connected to the inner cavity of the fixed sleeve. The threaded sleeve and the threaded rod are threadedly connected. A second support sleeve is fixedly connected to the top of the threaded rod. The second support sleeve has a second spherical groove at its top. An auxiliary support shaft is rotatably connected to the inner cavity of the second spherical groove. The top end of the auxiliary support shaft contacts the bottom of the mounting plate. A limit groove is formed on the outer wall of the fixed sleeve. A limit block is fixedly connected to the inner wall of the threaded sleeve, and the limit block is slidably connected inside the limit groove.

[0007] Preferably, the stepless telescopic mechanism includes a fixed rod, a telescopic rod slidably connected to the outer wall of the fixed rod, a toothed groove on the outer wall of the fixed rod, and a locking block slidably connected to the inner cavity of the telescopic rod, the locking block engaging with the toothed groove for locking.

[0008] Preferably, a locking sleeve is fixedly connected to the outer wall of the telescopic rod, a locking rod is slidably connected to the inner cavity of the locking sleeve, and the locking block is fixedly connected to one end of the locking rod.

[0009] Preferably, a positioning plate is fixedly connected to the outer wall of the positioning rod, and the positioning plate is slidably connected to the inner cavity of the positioning sleeve.

[0010] Preferably, a spring is fixedly connected to one end of the inner cavity of the locking sleeve, and one end of the spring is fixedly connected to one side of the locking plate.

[0011] Preferably, the telescopic rod has a contraction groove in its inner cavity, and the contraction groove slides in cooperation with the locking block.

[0012] Preferably, one end of the locking rod is rotatably connected to a pull plate, and the pull plate contacts the side of the locking sleeve.

[0013] The advantages of this utility model are:

[0014] 1. This utility model uses a horizontal adjustment mechanism to support the center of the bottom of the mounting plate with the main support shaft. When the tilt of the connecting plate is small, the angle can be finely adjusted by adjusting the three sets of auxiliary support shafts respectively. This improves the horizontal adjustment accuracy of the auxiliary positioning device for terrain engineering surveying instruments and solves the problem of insufficient horizontal adjustment accuracy of the auxiliary positioning device for terrain engineering surveying instruments.

[0015] 2. This utility model utilizes a stepless telescopic mechanism. Pulling the pull plate on the locking sleeve rotates it and suspends it on the side of the locking sleeve. The locking plate compresses the spring, and the locking rod moves outward of the telescopic rod under the action of the pull plate, causing the locking block to move out of the tooth groove. This removes the telescopic restriction of the fixed rod and the telescopic rod, allowing the telescopic rod to slide on the outer wall of the fixed rod. By adjusting the three sets of telescopic rods and fixed rods respectively to support the connecting plate, the connecting plate can be placed stably to adapt to different terrains. This improves the convenience of telescopic support adjustment for auxiliary positioning devices used in terrain engineering surveying instruments and solves the problem of poor adaptability to complex terrains in auxiliary positioning devices used in terrain engineering surveying instruments, which leads to errors in horizontal adjustment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 This is a side view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the horizontal adjustment mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the stepless telescopic mechanism of this utility model;

[0020] Figure 4 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0021] Figure 5 This utility model Figure 3 Enlarged structural diagram of section B.

[0022] In the diagram: 1. Mounting plate; 2. Horizontal adjustment mechanism; 201. First support sleeve; 202. First spherical groove; 203. Main support shaft; 204. Fixing sleeve; 205. Threaded rod; 206. Threaded sleeve; 207. Second support sleeve; 208. Second spherical groove; 209. Auxiliary support shaft; 210. Limiting groove; 211. Limiting block; 3. Connecting plate; 4. Stepless telescopic mechanism; 401. Fixing rod; 402. Telescopic rod; 403. Locking sleeve; 404. Locking rod; 405. Locking plate; 406. Locking block; 407. Pull plate; 408. Spring; 409. Toothed groove; 410. Shrinkage groove. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0025] This application discloses an auxiliary positioning device for a topographic engineering surveying instrument. (Refer to...) Figures 1-5An auxiliary positioning device for a terrain engineering surveying instrument includes a mounting plate 1, a horizontal adjustment mechanism 2 movably mounted on the bottom of the mounting plate 1, a connecting plate 3 fixedly connected to the bottom of the horizontal adjustment mechanism 2, and a stepless telescopic mechanism 4 movably mounted on the bottom of the connecting plate 3. By utilizing the stepless telescopic mechanism 4, different terrains can be easily used to ensure that the connecting plate 3 can be placed stably. By using the horizontal adjustment mechanism 2 to make fine horizontal adjustments to the mounting plate 1, the accuracy of the horizontal adjustment of the mounting plate 1 can be improved.

[0026] The horizontal adjustment mechanism 2 includes a first support sleeve 201, which is fixedly connected to the top of the connecting plate 3. A first spherical groove 202 is formed in the inner cavity of the first support sleeve 201. A main support shaft 203 is rotatably connected within the first spherical groove 202. The top end of the main support shaft 203 is fixedly connected to the bottom of the mounting plate 1. A fixing sleeve 204 is fixedly connected to the top of the connecting plate 3 near its edge. A threaded sleeve 206 is rotatably connected to the top of the outer wall of the fixing sleeve 204. A threaded sleeve 206 is slidably connected to the inner cavity of the fixing sleeve 204. A threaded rod 205 and a threaded sleeve 206 are threadedly connected to the threaded rod 205. A second support sleeve 207 is fixedly connected to the top of the threaded rod 205. A second spherical groove 208 is formed on the top of the second support sleeve 207. An auxiliary support shaft 209 is rotatably connected to the inner cavity of the second spherical groove 208. The top of the auxiliary support shaft 209 contacts the bottom of the mounting plate 1. A limit groove 210 is formed on the outer wall of the fixed sleeve 204. A limit block 211 is fixedly connected to the inner wall of the threaded sleeve 206. The limit block 211 is slidably connected to the limit. Inside the slot 210, the mounting plate 1 rotates omnidirectionally through the main support shaft 203 and the first spherical groove 202 of the first support sleeve 201. When the mounting plate 1 tilts due to terrain, the three sets of auxiliary support shafts 209 are adjusted to make the mounting plate 1 level. By rotating the threaded sleeve 206, the threaded rod 205 extends and retracts vertically. The threaded sleeve 206 is stabilized by the limiting groove 210 and the limiting block 211. The threaded sleeve 206 rotates on the outer wall of the fixed sleeve 204. Under the action of the threaded sleeve 206, the threaded rod 205 moves up and down in the inner cavity of the fixed sleeve 204. The extension and retraction of the threaded rod 205 drives the second support sleeve 207 and the auxiliary support shaft 209 to extend and retract vertically. The auxiliary support shaft 209 rotates omnidirectionally within the second spherical groove 208 of the second support sleeve 207. The angle of the auxiliary support shaft 209 is adjusted so that the auxiliary support shaft 209 can fit against the bottom of the mounting plate 1. The extension and retraction adjustment of the three sets of auxiliary support shafts 209 makes the horizontal adjustment of the mounting plate 1 more precise.

[0027] Reference Figure 1 , Figure 3 and Figure 4The stepless telescopic mechanism 4 includes a fixed rod 401, a telescopic rod 402 slidably connected to the outer wall of the fixed rod 401, a toothed groove 409 on the outer wall of the fixed rod 401, and a locking block 406 slidably connected to the inner cavity of the telescopic rod 402. The locking block 406 and the toothed groove 409 cooperate to lock in place, allowing the telescopic rod 402 to telescopically slide on the outer wall of the fixed rod 401. The fixed rod 401 is installed at the bottom of the connecting plate 3 with an inclined thread. The three sets of stepless telescopic mechanisms 4 cooperate to provide stable support for the connecting plate 3. The locking block 406 and the toothed groove 409 cooperate to lock in place, allowing the telescopic rod 402 to be stably suspended on the fixed rod 401.

[0028] Reference Figure 3 and Figure 4 The telescopic rod 402 is fixedly connected to the outer wall of the locking sleeve 403. The locking rod 404 is slidably connected to the inner cavity of the locking sleeve 403. The locking block 406 is fixedly connected to one end of the locking rod 404. The locking rod 404 is located in the inner cavity of the locking sleeve 403 and slides to drive the locking block 406 to extend and slide, thereby facilitating the locking block 406 to cooperate with the tooth groove 409 for locking and separation.

[0029] Reference Figure 3 and Figure 4 The outer wall of the locking rod 404 is fixedly connected to the locking plate 405. The locking plate 405 is slidably connected to the inner cavity of the locking sleeve 403. The locking rod 404 slides and drives the locking plate 405 to slide in the inner cavity of the locking sleeve 403. The locking rod 404 can slide stably in the inner cavity of the locking sleeve 403 without sliding out of the locking sleeve 403.

[0030] Reference Figure 3 and Figure 4 A spring 408 is fixedly connected to one end of the inner cavity of the locking sleeve 403. One end of the spring 408 is fixedly connected to one side of the locking plate 405. A shrinkage groove 410 is opened in the inner cavity of the telescopic rod 402. The shrinkage groove 410 and the locking block 406 slide together. The locking plate 405 and the spring 408 cooperate to facilitate the extension and retraction of the locking rod 404. When the locking rod 404 slides to the outside of the locking sleeve 403, it drives the locking block 406 to retract into the shrinkage groove 410, thereby separating the locking block 406 from the tooth groove 409.

[0031] Reference Figure 3 and Figure 4 One end of the locking rod 404 is rotatably connected to a pull plate 407. The pull plate 407 contacts the side of the locking sleeve 403. Pulling the pull plate 407 causes it to rotate on the side of the locking sleeve 403. The rotation of the pull plate 407 causes the locking rod 404 to slide outward of the locking sleeve 403. When the bottom of the pull plate 407 is in contact with the side of the locking sleeve 403, the locking block 406 separates from the tooth groove 409, so that the locking block 406 can be stably retracted in the shrinkage groove 410.

[0032] Working principle: In use, the continuously variable telescopic mechanism 4 is used to adjust the level of the connecting plate 3. The pull plate 407 on the locking sleeve 403 is pulled to rotate and hover on the side of the locking sleeve 403. The locking plate 405 compresses the spring 408. Under the action of the pull plate 407, the locking rod 404 moves to the outside of the telescopic rod 402, so that the locking block 406 moves out of the tooth groove 409 and slides into the shrinkage groove 410. This removes the extension and retraction restriction of the fixed rod 401 and the telescopic rod 402, allowing the fixed rod 401 and the telescopic rod 402 to extend and retract smoothly. By adjusting the three sets of fixed rods 401 and telescopic rods 402 respectively to adapt to the ground conditions, the connecting plate 3 is made level. Then, through the level adjustment mechanism 2, the main support shaft 203 is located in the first The bottom center of the mounting plate 1 is supported in the first spherical groove 202 of the support sleeve 201. The mounting plate 1 is finely adjusted by adjusting the height of the auxiliary support shaft 209. The threaded sleeve 206 on the fixed sleeve 204 is rotated. The threaded sleeve 206 rotates stably without moving up or down through the cooperation of the limiting groove 210 and the limiting block 211. The threaded rod 205 slides up and down in the inner cavity of the fixed sleeve 204 under the action of the threaded sleeve 206, so that the second support sleeve 207 can move up and down easily, and the auxiliary support shaft 209 can move up and down. The auxiliary support shaft 209 can rotate in the second spherical groove 208 and completely fit the lower surface of the mounting plate 1, thereby achieving precise adjustment of the horizontal level of the mounting plate 1.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An auxiliary positioning device for a topographic engineering surveying instrument, characterized in that: Includes a mounting plate (1), a horizontal adjustment mechanism (2) is movably mounted on the bottom of the mounting plate (1), a connecting plate (3) is fixedly connected to the bottom of the horizontal adjustment mechanism (2), and a stepless telescopic mechanism (4) is movably mounted on the bottom of the connecting plate (3); The horizontal adjustment mechanism (2) includes a first support sleeve (201), which is fixedly connected to the top of the connecting plate (3). The first support sleeve (201) has a first spherical groove (202) in its inner cavity. A main support shaft (203) is rotatably connected in the first spherical groove (202). The top end of the main support shaft (203) is fixedly connected to the bottom of the mounting plate (1). A fixing sleeve (204) is fixedly connected to the top of the connecting plate (3) near its edge. A threaded sleeve (206) is rotatably connected to the top of the outer wall of the fixing sleeve (204). A threaded rod (205) is slidably connected to the inner cavity of the fixing sleeve (204). The threaded sleeve (206) is threadedly connected to the threaded rod (205). The top of the threaded rod (205) is fixedly connected to a second support sleeve (207). The top of the second support sleeve (207) is provided with a second spherical groove (208). An auxiliary support shaft (209) is rotatably connected to the inner cavity of the second spherical groove (208). The top of the auxiliary support shaft (209) contacts the bottom of the mounting plate (1). The outer wall of the fixed sleeve (204) is provided with a limiting groove (210). The inner wall of the threaded sleeve (206) is fixedly connected to a limiting block (211). The limiting block (211) is slidably connected inside the limiting groove (210).

2. The auxiliary positioning device for a topographic engineering surveying instrument according to claim 1, characterized in that: The stepless telescopic mechanism (4) includes a fixed rod (401), a telescopic rod (402) is slidably connected to the outer wall of the fixed rod (401), a toothed groove (409) is provided on the outer wall of the fixed rod (401), and a locking block (406) is slidably connected to the inner cavity of the telescopic rod (402), and the locking block (406) cooperates with the toothed groove (409) to lock in place.

3. The auxiliary positioning device for a topographic engineering surveying instrument according to claim 2, characterized in that: The telescopic rod (402) is fixedly connected to the outer wall of the telescopic rod (402), and the inner cavity of the telescopic rod (403) is slidably connected to the telescopic rod (404). The locking block (406) is fixedly connected to one end of the telescopic rod (404).

4. The auxiliary positioning device for a topographic engineering surveying instrument according to claim 3, characterized in that: The outer wall of the locking rod (404) is fixedly connected to the locking plate (405), and the locking plate (405) is slidably connected to the inner cavity of the locking sleeve (403).

5. The auxiliary positioning device for a topographic engineering surveying instrument according to claim 4, characterized in that: A spring (408) is fixedly connected to one end of the inner cavity of the locking sleeve (403), and one end of the spring (408) is fixedly connected to one side of the locking plate (405).

6. The auxiliary positioning device for a topographic engineering surveying instrument according to claim 5, characterized in that: The telescopic rod (402) has a contraction groove (410) in its inner cavity, and the contraction groove (410) slides in cooperation with the locking block (406).

7. The auxiliary positioning device for a topographic engineering surveying instrument according to claim 6, characterized in that: One end of the locking rod (404) is rotatably connected to a pull plate (407), and the pull plate (407) contacts the side of the locking sleeve (403).

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