A surveying instrument convenient to adjust for engineering surveying

Abstract

The utility model relates to the technical field of surveying instrument, disclose a kind of surveying instrument for engineering surveying convenient to adjust, including surveying instrument body and support connecting seat, the lower surface of surveying instrument body is fixedly connected with connecting base, the inner side wall of support connecting seat is movably connected with adjusting seat, the outer surface of rotating shaft is fixedly connected with spring, the outer surface of rotating shaft is rotatably connected with threaded tube, the inner side wall of rotating connecting seat is rotatably connected with first adjusting knob, the inner side wall of support connecting seat downside is rotatably connected with tripod support frame, the inner side wall of tripod support frame is slidably connected with telescopic piece, the inner side wall of telescopic piece is rotatably connected with screw rod, the outer surface of telescopic rod support frame is sleeved with telescopic frame, the utility model is positioned accurate fine adjustment of surveying instrument body by the cooperation of first adjusting knob and adjusting seat, and the length of tripod is accurately adjusted by the linkage of second adjusting knob, worm gear and screw rod, significantly improve the operation efficiency and measurement accuracy of engineering surveying.

Description

Technical Field

[0001] This utility model relates to the field of surveying instrument technology, and more specifically, to a surveying instrument for engineering surveying that is easy to adjust. Background Technology

[0002] Surveying instruments are core measuring equipment in engineering construction fields (such as building construction layout, road and bridge surveying, topographic mapping, and municipal engineering planning). They mainly use optical, electronic, or laser technologies to accurately collect geospatial data such as coordinates, distances, angles, and elevations of target areas. Their measurement accuracy directly determines the accuracy of engineering design implementation, the effectiveness of quality control during construction, and the compliance of post-construction acceptance. They must also be adaptable to diverse scenarios such as complex terrain in the field and narrow construction sites. The supporting structure (such as a tripod), as a basic component of the surveying instrument, directly affects the instrument's efficiency and data reliability through its ease of adjustment and stability, making it a crucial link in ensuring the efficient progress of engineering surveying work. However, existing engineering surveying instruments have significant defects in support adjustment and alignment operations, which seriously restricts the efficiency of surveying work. On the one hand, existing surveying instruments are mostly used with simple tripods. When data needs to be collected by aligning with preset ground markers, if the initial placement of the tripod is off, the entire tripod needs to be moved to adjust its position. This operation not only requires repeatedly lifting and moving the tripod, but also recalibrating its level. Especially in construction scenarios with rugged terrain or limited space, the moving process is cumbersome and time-consuming, significantly increasing the difficulty of alignment. On the other hand, the length adjustment of the telescopic rod of traditional simple tripods relies on manual control: the operator needs to loosen the locking knob, stretch the telescopic rod to the estimated length by hand, and then lock it. This manual adjustment method makes it difficult to accurately control the extension of the telescopic rod, which can easily lead to deviations in the tripod support height. It requires repeated loosening, adjustment, and locking to correct the problem. This not only prolongs the setup time of the surveying instrument, but may also affect the accuracy of the measurement benchmark due to height deviation, further slowing down the overall measurement progress. There is an urgent need to optimize the support and adjustment structure of the surveying instrument to solve the above problems. Utility Model Content

[0003] (a) Technical problems to be solved In view of the above situation and to overcome the defects of the prior art, this utility model provides an easily adjustable surveying instrument for engineering surveying, aiming to solve the problems in the background art.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an easily adjustable engineering surveying instrument, comprising an instrument body and a support connecting base, characterized in that: a connecting base is fixedly connected to the lower surface of the instrument body; an adjusting base is movably connected to the inner wall of the support connecting base; a groove is formed on the outer surface of the adjusting base; a rotating shaft is rotatably connected to the inner wall of the groove; a spring is fixedly connected to the outer surface of the rotating shaft; a threaded tube is rotatably connected to the outer surface of the rotating shaft; and a threaded tube is rotatably connected to the inner wall of the support connecting base. A rotating connecting seat is provided, with a first adjusting knob rotatably connected to its inner wall. A snap-fit ​​groove is provided on the upper surface of the adjusting seat. A tripod support is rotatably connected to the inner wall of the lower side of the bracket connecting seat. A telescopic member is slidably connected to the inner wall of the tripod support. A lead screw is rotatably connected to the inner wall of the telescopic member. A second adjusting knob is rotatably connected to the inner wall of the upper end of the telescopic member. A telescopic rod support is fixedly connected to the lower end of the telescopic member. A telescopic frame is sleeved on the outer surface of the telescopic rod support. A horseshoe-shaped tip is fixedly connected to the lower end of the telescopic frame.

[0005] The present invention is further configured such that a steel ball is rotatably connected to the inner sidewall of the lower surface of the adjusting seat, and a plurality of steel balls are arranged in a uniformly distributed ring array, and the lower surface of the steel ball abuts against the inner bottom wall of the bracket connecting seat.

[0006] The present invention is further configured such that four grooves and four rotating shafts are provided and are evenly distributed in a circular array, and two springs are provided and are distributed perpendicularly to each other. One end of each spring is rotatably connected to the inner side wall of the bracket connecting seat through a shaft.

[0007] The present invention is further configured such that one end of the first adjusting knob is threadedly connected to the inner wall of the threaded tube, and two of the threaded tube, the rotating connecting seat and the first adjusting knob are provided and are respectively distributed opposite to two springs.

[0008] The present invention is further configured such that the lower surface of the connecting base is adapted to the inner side wall of the snap-fit ​​groove, and the surveying instrument body is installed on the adjusting seat through the cooperation of the connecting base and the snap-fit ​​groove.

[0009] The present invention is further configured such that a limiting groove is formed on the outer surface of the tripod support frame, and a tightening nut is threadedly connected to the inner side wall of the upper end of the telescopic member. One end of the tightening nut passes through the interior of the limiting groove, and the outer surface of the tightening nut abuts against the outer surface of the tripod support frame located outside the limiting groove.

[0010] The present invention is further configured such that a worm gear is fixedly connected to the outer surface of the second adjusting knob, and a worm wheel is fixedly connected to the upper outer surface of the lead screw, and the outer surface of the worm wheel is connected to the outer surface of the worm gear in a transmission connection.

[0011] The present invention is further configured such that a threaded connector is slidably connected to the inner wall of the telescopic rod support frame, the inner wall of the threaded connector is connected to the outer surface of the lead screw, and the outer surface of the threaded connector is fixedly connected to the inner wall of the telescopic frame.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides an easily adjustable surveying instrument for engineering surveying, which has the following beneficial effects: 1. This easily adjustable engineering surveying instrument, through the arrangement of a support connecting seat, an adjusting seat, a rotating shaft, a spring, a threaded tube, a rotating connecting seat, and a first adjusting knob, enables precise fine-tuning of the instrument's position. Through the coordinated arrangement of two sets of rotating shafts, springs, threaded tubes, rotating connecting seats, and the first adjusting knob, during use, rotating the two perpendicularly positioned first adjusting knobs causes the adjusting seat to slide within the support connecting seat, thereby allowing for omnidirectional adjustment of the instrument's position in the horizontal direction, thus achieving the purpose of easily adjusting the position of the instrument's body.

[0013] 2. This easily adjustable engineering surveying instrument, through the arrangement of a telescopic component, a lead screw, a second adjustment knob, a worm gear, a worm, a telescopic rod support frame, a telescopic frame, and a threaded connector, enables the instrument to easily fine-tune the extension length of the telescopic frame. Through the coordinated arrangement of the lead screw, second adjustment knob, worm gear, worm, telescopic rod support frame, and telescopic frame, during use, rotating the second adjustment knob drives the lead screw to rotate. This, through the transmission connection between the lead screw and the threaded connector, allows for precise fine-tuning of the position of the telescopic frame on the outer surface of the telescopic rod support frame, thereby achieving the purpose of facilitating precise fine-tuning of the tripod length. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view sectional diagram of the bracket connecting seat of this utility model; Figure 3 This is a structural schematic diagram of the front cross-section of the bracket connecting seat of this utility model; Figure 4 This is a schematic diagram of the three-dimensional cross-section of the support structure of this utility model; Figure 5 This utility model Figure 4 Schematic diagram of the structure at point B; Figure 6 This utility model Figure 4A schematic diagram of the structure at point A in the middle.

[0015] In the diagram: 1. Surveying instrument body; 2. Connecting base; 3. Bracket connecting seat; 4. Adjusting seat; 5. Steel ball; 6. Groove; 7. Rotating shaft; 8. Spring; 9. Threaded pipe; 10. Rotating connecting seat; 11. First adjusting knob; 12. Snap-fit ​​groove; 13. Tripod support frame; 14. Telescopic component; 15. Tightening nut; 16. Lead screw; 17. Second adjusting knob; 18. Worm gear; 19. Worm; 20. Telescopic rod support frame; 21. Telescopic frame; 22. Threaded connector; 23. Horseshoe tip; 24. Limiting groove. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0018] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0019] Please see Figures 1-6The easily adjustable engineering surveying instrument provided in this embodiment has a connecting base 2 fixedly connected to the lower surface of the instrument body 1, and an adjusting seat 4 movably connected to the inner wall of the support connecting seat 3. Several steel balls 5 arranged in a circular array are rotatably connected to the inner wall of the lower surface of the adjusting seat 4 (the lower surface of the steel balls 5 abuts against the inner bottom wall of the support connecting seat 3). Four grooves 6 arranged in a circular array are formed on the outer surface of the adjusting seat 4. A rotating shaft 7 is rotatably connected to the inner wall of the grooves 6. Two mutually perpendicularly distributed springs 8 are fixedly connected to the outer surface of the rotating shaft 7 (one end of each spring 8 is rotatably connected to the inner wall of the support connecting seat 3 via a shaft). A threaded tube 9 is rotatably connected; a rotating connecting seat 10 is rotatably connected to the inner wall of the bracket connecting seat 3, and a first adjusting knob 11 is rotatably connected to the inner wall of the rotating connecting seat 10 (one end of the first adjusting knob 11 is threadedly connected to the inner wall of the threaded tube 9, and there are two of each of the threaded tube 9, rotating connecting seat 10 and first adjusting knob 11, which are respectively distributed opposite to two springs 8); a snap-fit ​​groove 12 is opened on the upper surface of the adjusting seat 4, and the lower surface of the connecting base 2 is adapted to the inner wall of the snap-fit ​​groove 12. The surveying instrument body 1 is installed on the adjusting seat 4 through the cooperation of the connecting base 2 and the snap-fit ​​groove 12, which constitutes the core structure for precise fine adjustment of the horizontal position of the surveying instrument body 1.

[0020] Specifically, when the surveying instrument body 1 needs to be aligned with the preset ground marker point and there is a positional offset, there is no need to move the overall support: if adjustment is required in the front-back direction, rotate the first adjustment knob 11 in the corresponding direction. The first adjustment knob 11 rotates along the rotating connecting seat 10, and its end is driven by the thread and threaded tube 9, pushing another threaded tube 9 to rotate around the rotating shaft 7, thereby driving the adjustment seat 4 to slide back and forth along the inner bottom wall of the support connecting seat 3. The steel ball 5 can reduce the friction between the adjustment seat 4 and the support connecting seat 3 and improve the smoothness of sliding; if adjustment is required in the left-right direction, rotate another set of mutually perpendicular first adjustment knobs 11, which can similarly drive the adjustment seat 4 to slide left and right, realizing all-round fine adjustment in the horizontal direction; during the adjustment process, the two mutually perpendicular springs 8 always apply tension to the adjustment seat 4 to prevent the adjustment seat 4 from shifting on its own and ensure positional stability; after the adjustment is completed, the surveying instrument body 1 is firmly installed through the tight fit between the connecting base 2 and the snap-fit ​​groove 12, and there is no need to disassemble and reassemble the surveying instrument.

[0021] Please see Figures 1-6The surveying instrument's bracket connecting seat 3 has a tripod support frame 13 rotatably connected to its lower inner wall. A limiting groove 24 is formed on the outer surface of the tripod support frame 13. A telescopic component 14 is slidably connected to the inner wall of the tripod support frame 13. A tightening nut 15 is threadedly connected to the inner wall of the upper end of the telescopic component 14 (one end of the tightening nut 15 penetrates the interior of the limiting groove 24, and the outer surface of the tightening nut 15 abuts against the outer surface of the tripod support frame 13, located outside the limiting groove 24). A lead screw 16 is rotatably connected to the inner wall of the telescopic component 14, and a second adjusting knob 17 is rotatably connected to the inner wall of the upper end of the telescopic component 14. The outer surface of the second adjusting knob 17... A worm gear 19 is fixedly connected, and a worm wheel 18 is fixedly connected to the outer surface of the upper end of the lead screw 16 (the outer surface of the worm wheel 18 is connected to the outer surface of the worm gear 19 in a transmission connection); a telescopic rod support frame 20 is fixedly connected to the lower end of the telescopic component 14, and a telescopic frame 21 is sleeved on the outer surface of the telescopic rod support frame 20. A threaded connector 22 is slidably connected to the inner wall of the telescopic rod support frame 20 (the inner wall of the threaded connector 22 is connected to the outer surface of the lead screw 16 in a transmission connection, and the outer surface of the threaded connector 22 is fixedly connected to the inner wall of the telescopic frame 21). A horseshoe tip 23 is fixedly connected to the lower end of the telescopic frame 21, which constitutes the key structure for precise micro-adjustment of the tripod length.

[0022] Specifically, when setting up the tripod, first open the three tripod support frames 13 outwards, loosen the tightening nuts 15, and manually push the telescopic component 14 to slide along the inner wall of the tripod support frame 13. After adjusting the telescopic component 14 to its approximate length according to the terrain, tighten the tightening nuts 15. The tightening nuts 15 will press against the outer surface of the tripod support frame 13 to fix the position of the telescopic component 14. If precise fine-tuning of the tripod height is required, turn the second adjustment knob 17. The second adjustment knob 17 will drive the worm gear 19 to rotate synchronously. The worm gear 18 at the upper end of the rod 19 meshes with the lead screw 16, driving the lead screw 16 to rotate along the inner wall of the telescopic member 14; the lead screw 16 is driven by the thread and the threaded connector 22, which drives the threaded connector 22 to slide up and down along the inner wall of the telescopic rod support frame 20, thereby pushing the telescopic frame 21 to extend or retract along the outer surface of the telescopic rod support frame 20, so as to achieve precise micro-adjustment of the tripod length; the horseshoe tip 23 at the lower end of the telescopic frame 21 can be inserted into the ground to improve the overall stability of the tripod and prevent slippage.

[0023] In summary, when using the overall equipment: First, open the three tripod support frames 13 outwards. Then, loosen the tightening nut 15. At this point, you can manually adjust the position of the telescopic component 14 within the tripod support frame 13. After adjusting to the approximate length, tighten the tightening nut 15 to fix the position of the telescopic component 14 within the tripod support frame 13. Then, manually turn the second adjustment knob 17. Through the transmission action of the worm gear 18 and worm 19, the lead screw 16 rotates. When the lead screw 16 rotates, through the transmission action with the threaded connection 22, it drives the telescopic frame 21 to slide downwards or retract on the outer surface of the telescopic rod support frame 20. This allows for fine-tuning of the overall length of the three tripods. After adjusting the level, the surveying... The installation is completed when the connecting base 2 on the lower surface of the instrument body 1 is inserted into the slot 12. If the position of the surveying instrument body 1 is offset, the first adjustment knob 11 can be rotated. When the first adjustment knob 11 is rotated, the end is screwed into the threaded tube 9, which will drive the adjustment seat 4 to move forward. Conversely, it will move backward. When the adjustment seat 4 moves forward, the setting of the rotating shaft 7 can prevent the two sets of threaded tubes 9, the rotating connecting seat 10 and the first adjustment knob 11 from locking each other. The setting of the two springs 8 provides tension to the adjustment seat 4 when adjusting it, keeping the position of the adjustment seat 4 in the bracket connecting seat 3 from moving arbitrarily. The setting of the steel ball 5 improves the smoothness of the adjustment seat 4 when it is adjusted and moved in the bracket connecting seat 3.

[0024] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A surveying instrument for engineering surveying, which is convenient to adjust, comprising a surveying instrument body (1) and a support connecting seat (3), characterized in that: A connecting base (2) is fixedly connected to the lower surface of the surveying instrument body (1). An adjusting seat (4) is movably connected to the inner wall of the bracket connecting seat (3). A groove (6) is provided on the outer surface of the adjusting seat (4). A rotating shaft (7) is rotatably connected to the inner wall of the groove (6). A spring (8) is fixedly connected to the outer surface of the rotating shaft (7). A threaded tube (9) is rotatably connected to the outer surface of the rotating shaft (7). A rotating connecting seat (10) is rotatably connected to the inner wall of the bracket connecting seat (3). A first adjusting knob (11) is rotatably connected to the inner wall of the rotating connecting seat (10). The adjusting seat (4) The upper surface is provided with a snap-fit ​​groove (12). The inner wall of the lower side of the bracket connecting seat (3) is rotatably connected to a tripod support frame (13). The inner wall of the tripod support frame (13) is slidably connected to a telescopic component (14). The inner wall of the telescopic component (14) is rotatably connected to a lead screw (16). The inner wall of the upper end of the telescopic component (14) is rotatably connected to a second adjustment knob (17). The lower end of the telescopic component (14) is fixedly connected to a telescopic rod support frame (20). The outer surface of the telescopic rod support frame (20) is fitted with a telescopic frame (21). The lower end of the telescopic frame (21) is fixedly connected to a horseshoe tip (23).

2. The surveying instrument according to claim 1, characterized in that: The inner wall of the lower surface of the adjusting seat (4) is rotatably connected with steel balls (5). Several steel balls (5) are arranged in a circular array and are evenly distributed. The lower surface of the steel balls (5) abuts against the inner bottom wall of the bracket connecting seat (3).

3. The surveying instrument according to claim 1, wherein: The groove (6) and the rotating shaft (7) are each provided with four and are evenly distributed in a ring array. The spring (8) is provided with two and is distributed perpendicular to each other. One end of the spring (8) is rotatably connected to the inner wall of the bracket connecting seat (3) through a shaft.

4. The surveying instrument according to claim 1, wherein: One end of the first adjustment knob (11) is threaded to the inner wall of the threaded tube (9). The threaded tube (9), the rotating connecting seat (10) and the first adjustment knob (11) are all provided in twos and are respectively distributed opposite to the two springs (8).

5. The surveying instrument according to claim 1, wherein: the surveying instrument is characterized in that: The lower surface of the connecting base (2) is adapted to the inner wall of the snap-fit ​​groove (12), and the surveying instrument body (1) is installed on the adjusting seat (4) through the cooperation of the connecting base (2) and the snap-fit ​​groove (12).

6. The surveying instrument for engineering surveying according to claim 1, characterized in that: The outer surface of the tripod support frame (13) is provided with a limiting groove (24). The inner wall of the upper end of the telescopic member (14) is threaded with a tightening nut (15). One end of the tightening nut (15) passes through the interior of the limiting groove (24). The outer surface of the tightening nut (15) abuts against the outer surface of the tripod support frame (13) and is located outside the limiting groove (24).

7. The surveying instrument according to claim 1, characterized in that: The outer surface of the second adjustment knob (17) is fixedly connected to a worm (19), and the upper outer surface of the lead screw (16) is fixedly connected to a worm wheel (18). The outer surface of the worm wheel (18) is connected to the outer surface of the worm (19) for transmission.

8. The surveying instrument for engineering surveying according to claim 1, characterized in that: A threaded connector (22) is slidably connected to the inner wall of the telescopic rod support frame (20). The inner wall of the threaded connector (22) is connected to the outer surface of the lead screw (16). The outer surface of the threaded connector (22) is fixedly connected to the inner wall of the telescopic frame (21).

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