Adjustable windproof support for surveying instruments

Abstract

The utility model discloses an adjustable surveying and mapping instrument windproof support belongs to surveying and mapping instrument support field, and it includes adjustable support, support sleeve and reinforcing link: adjustable support contains main rod, the inner rod of the upper and lower slide of main rod, and the thread locking mechanism of locking inner rod height, and the inner rod upper portion fixed surveying and mapping instrument body, support sleeve upper end connects main rod, and the outer surface ring of lower extreme is clothed three collapsible legs, and the inside slide slide bar, and the telescopic link of slide bar inside slide is arranged, and the support block is fixed to telescopic link bottom end, reinforcing link is set up to corresponding leg, and two ends are rotatable connection collapsible leg and slide bar respectively, and the leg is set up to corresponding and has the accommodation groove. When the leg is folded, reinforcing link is received into the accommodation groove, when the leg is opened, reinforcing link and slide bar, leg constitute the triangle stable structure. The utility model can effectively promote the whole wind bearing capacity, keep stable observation, reduce the measurement error caused by vibration.

Description

Technical Field

[0001] This utility model relates to the field of surveying instrument support technology, specifically to an adjustable windproof support for surveying instruments. Background Technology

[0002] As the requirements for data accuracy continue to rise in fields such as engineering construction, cadastral surveying, geographic information collection, and natural resource investigation, the tolerance for errors in surveying data is constantly decreasing. The measurement accuracy of surveying instruments depends not only on the performance of the instrument itself, but also on the stability of the support structure. If the support structure tilts or sways during operation, it will directly lead to deviations in angle and distance measurements, resulting in rework and increased time and cost.

[0003] In practical operation scenarios, strong winds are common in open fields, high-altitude areas (such as rooftop surveying), and coastal areas, placing higher demands on the wind resistance and stability of the support structure. Existing technologies, such as the traditional support structure described in application CN202323460805.8 ("A Surveying Instrument Support"), have significant limitations in their structural design: these supports rely solely on the independent support of three legs, failing to form a geometrically stable structural system like a triangle, making them prone to "unilateral tilting" or overall swaying under wind conditions. Furthermore, the lack of an effective stress-dispersing structure, coupled with prolonged exposure to outdoor wind and instrument loads, leads to deformation of the leg joints and stripping of connecting bolts, resulting in a loose overall structure and further weakening of wind resistance. This makes it difficult to meet the stable observation requirements in strong wind environments, ultimately affecting the accuracy of the surveying data. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an adjustable windproof support for surveying instruments.

[0005] This utility model discloses an adjustable windproof support for surveying instruments, comprising:

[0006] An adjustable bracket for adjusting the placement height of a surveying instrument includes a main rod and an inner rod that slides up and down inside the main rod. It also includes a threaded locking mechanism for locking the inner rod at its height position inside the main rod. The upper part of the inner rod is used to fix the body of the surveying instrument.

[0007] The support sleeve has its upper end fixedly connected to the main rod, and its lower end outer surface is evenly covered with three foldable support legs. Inside the sleeve, a sliding rod slides up and down, and inside the sliding rod, a telescopic rod slides up and down. The bottom end of the telescopic rod is fixed with a support block.

[0008] A reinforcing link is provided for each of the foldable legs, and its two ends are rotatably connected to the corresponding foldable leg and slide rod respectively. Each of the foldable legs is provided with a receiving groove for the reinforcing link.

[0009] When the three foldable legs are folded into place, all the reinforcing links are retracted into their corresponding receiving slots; when the three foldable legs are extended into place, all the reinforcing links are located between the slide rod and the corresponding foldable leg, and together with the slide rod and the corresponding foldable leg, they form a triangular stable structure.

[0010] As a further improvement of this utility model, the threaded locking mechanism includes a bolt and a locking sleeve;

[0011] A bolt is fixedly connected to the bottom end of each of the two opposite side walls of the inner rod. The main rod is provided with a first sliding groove on each of the two threaded sides, and the first sliding groove extends along the axial direction of the main rod. The inner rod can slide up and down in the first sliding groove through the bolts on both sides. The locking sleeve is screwed onto the bolts on both sides.

[0012] As a further improvement of this utility model, the locking mechanism also includes a control handle, which is fixedly connected to the outer surface of the locking sleeve, and the control handle is provided with anti-slip texture.

[0013] As a further improvement of this utility model, a positioning groove is also provided on one side wall of the main rod, and the positioning groove extends along the axial direction of the main rod; a positioning block that is slidably adapted to the positioning groove is fixedly connected to the outer surface of the inner rod.

[0014] As a further improvement of this utility model, the support block is provided with at least one recessed groove, and a magnet block is fixedly connected in each recessed groove; the magnet block is used to magnetically fix the bottom end of the slide rod after the telescopic rod is retracted.

[0015] As a further improvement of this utility model, the bottom end of each of the foldable legs and the bottom end of the support block are fixedly connected with ground nails.

[0016] As a further improvement of this utility model, an axial sliding fit structure is provided between the support sleeve and the slide rod, and between the slide rod and the telescopic rod, so as to guide the slide rod to slide along the axial direction of the support sleeve and the telescopic rod to slide along the axial direction of the slide rod, respectively.

[0017] The bottom end of the support sleeve is provided with a first limiting part for restricting the slide rod from disengaging, and the bottom end of the slide rod is provided with a second limiting part for restricting the telescopic rod from disengaging.

[0018] As a further improvement of this utility model, one end of the reinforcing connecting rod is rotatably connected to the receiving groove, and the other end of the reinforcing connecting rod is rotatably connected to the sliding rod;

[0019] During the outward expansion of the three foldable legs, the three reinforcing rods push the sliding rod to slide upward within the support sleeve; when the top of the sliding rod moves to the top of the support sleeve, the three foldable legs are fully extended.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This invention utilizes the synergistic effect of a support sleeve, foldable legs, receiving groove, reinforcing rod, sliding rod, and telescopic rod. When the foldable legs are extended, the reinforcing rod, sliding rod, and foldable legs together form a triangular stable structure, providing additional rigid support for the support frame. Simultaneously, it evenly distributes wind loads to the three foldable legs, preventing concentrated stress on any single leg and effectively reducing the relative deflection and swaying of the foldable legs under wind conditions. This significantly improves the overall wind resistance, ensuring stable observation by surveying instruments and reducing measurement errors caused by vibration. Furthermore, when the foldable legs are folded and stored, the reinforcing rod can be completely retracted into the receiving groove, without occupying additional external space, facilitating the carrying and storage of the support frame.

[0022] This invention, through its adjustable bracket, allows for flexible adjustment of the surveying instrument's placement height according to the terrain elevation difference and the location of the observation target, avoiding obstructions and ensuring an unobstructed line of sight. This reduces observation errors caused by obstructed vision, thereby quickly matching different site terrains and observation task requirements.

[0023] In complex terrain conditions, this invention allows the support block to stably contact the ground by adjusting the extension length of the telescopic rod, thereby enhancing the overall support stability of the support structure. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an adjustable surveying instrument windproof bracket disclosed in one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the main rod of the adjustable surveying instrument windproof support disclosed in one embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the threaded locking structure of an adjustable surveying instrument windproof bracket disclosed in one embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the receiving groove of the adjustable surveying instrument windproof bracket disclosed in one embodiment of the present utility model;

[0028] Figure 5 This is a schematic diagram of the axial sliding fit structure of an adjustable surveying instrument windproof bracket disclosed in one embodiment of the present invention.

[0029] In the picture:

[0030] 1. Adjustable bracket; 1-1. Main rod; 1-11. First slide groove; 1-12. Positioning groove; 1-2. Inner rod; 1-21. Positioning block; 2. Support sleeve; 2-1. Second slide groove; 2-2. Annular limiting baffle; 3. Slide rod; 3-1. Slider; 4. Telescopic rod; 5. Foldable support leg; 5-1. Accommodation groove; 6. Reinforcing connecting rod; 7. Threaded locking mechanism; 7-1. Bolt; 7-2. Locking sleeve; 7-3. Control handle; 8. Support block; 9. Ground nail; 10. Surveying instrument body; 11. Magnet block. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The present invention will now be described in further detail with reference to the accompanying drawings:

[0035] like Figure 1As shown, an adjustable windproof support for a surveying instrument according to this utility model includes an adjustable support 1, a support sleeve 2, a sliding rod 3, a telescopic rod 4, and foldable legs 5. The adjustable support 1 is used to adjust the placement height of the surveying instrument and includes a main rod 1-1 and an inner rod 1-2 that slides up and down inside the main rod 1-1. The adjustable support 1 also includes a threaded locking mechanism 7 for locking the inner rod 1-2 at its height position inside the main rod 1-1. The inner rod 1-2 is used to fix the surveying instrument body 10. The upper end of the support sleeve 2 is fixedly connected to the main rod 1-1, and three foldable legs 5 are evenly distributed around its lower outer surface. The support sleeve 2 has three foldable legs 5 that slide up and down inside its interior. There is a sliding rod 3, and a telescopic rod 4 slides up and down inside the sliding rod 3. A support block 8 is fixed at the bottom end of the telescopic rod 4. Multiple reinforcing rods 6 are set for each foldable leg 5. The two ends of the reinforcing rod 6 are rotatably connected to the corresponding foldable leg 5 and the sliding rod 3 respectively. Each foldable leg 5 has a receiving groove 5-1 for the corresponding reinforcing rod 6. When the three foldable legs 5 are folded into place, all the reinforcing rods 6 are retracted into the corresponding receiving grooves 5-1. When the three foldable legs 5 are extended into place, all the reinforcing rods 6 are located between the sliding rod 3 and the corresponding foldable leg 5, and together with the sliding rod 3 and the corresponding foldable leg 5, they form a triangular stable structure.

[0036] Specifically:

[0037] like Figure 2 As shown, in the above embodiment, preferably, the main rod 1-1 is a cylindrical structure with a closed bottom. First sliding grooves 1-11 are formed on its opposite side walls, and a positioning groove 1-12 is formed on its other side wall. Both the first sliding grooves 1-11 and the positioning groove 1-12 extend along the axial direction of the main rod 1-1. The bottom end of the inner rod 1-2 is placed inside the main rod 1-1 and can move up and down along the axial direction of the main rod 1-1. The extension length of the inner rod 1-2 is fixed by a threaded locking mechanism 7.

[0038] like Figure 3 As shown, in the above embodiment, preferably, the threaded locking mechanism 7 includes bolts 7-1, locking sleeves 7-2, and control handles 7-3. A bolt 7-1 is fixedly connected to the bottom end of each of the opposite side walls of the inner rod 1-2. The axial direction of the bolt 7-1 is perpendicular to the axial direction of the inner rod 1-2, allowing the inner rod 1-2 to slide up and down within the first sliding groove 1-11 via the bolts 7-1 on both sides. Locking sleeves 7-2 are screwed onto each of the bolts 7-1 on both sides. A control handle 7-3 is fixed to the outer surface of the locking sleeve 7-2, and the control handle 7-3 is provided with anti-slip texture. In actual use, the control handle 7-3 can move the locking sleeve 7-2 towards the inner rod 1-2 to lock the inner rod 1-2, limiting and fixing the length of the inner rod 1-2 extending beyond the main rod 1-1, thus completing the height adjustment of the surveying instrument body 10.

[0039] In the above embodiment, preferably, a positioning block 1-21 that slides and adapts to the positioning groove 1-12 is fixedly connected to the outer surface of the inner rod 1-2. The design of the positioning groove 1-12 and the positioning block 1-21 can be used to limit the left and right swaying of the inner rod 1-2 relative to the main rod 1-1, ensure that the inner rod 1-2 moves linearly along the axial direction of the main rod 1-1, and make the sliding smoother.

[0040] like Figure 4 As shown, in the above embodiment, preferably, the receiving groove 5-1 is disposed on the side of the foldable leg 5 facing the slide rod 3, and the extending direction of the receiving groove 5-1 is consistent with the axial direction of the foldable leg 5. The shape of the receiving groove 5-1 is consistent with the shape of the reinforcing link 6. One end of the reinforcing link 6 is rotatably connected to the receiving groove 5-1, and the other end of the reinforcing link 6 is rotatably connected to the outer surface of the slide rod 3. During the process of the three foldable legs 5 being extended outward, the three reinforcing links 6 push the slide rod 3 to slide upward within the support sleeve 2. When the top of the slide rod 3 moves to the top of the support sleeve 2, the three foldable legs 5 are fully extended.

[0041] In the above embodiments, preferably, one end of the reinforcing link 6 is rotatably connected to the upper inner wall of the receiving groove 5-1, and the other end of the reinforcing link 6 is rotatably connected to the lower outer surface of the slide bar 3.

[0042] In the above embodiment, preferably, the support block 8 is provided with at least one recessed groove, and a magnet block 11 is fixedly connected in each recessed groove; the magnet block 11 is used to magnetically fix itself to the bottom end of the slide rod 3 after the telescopic rod 4 is retracted.

[0043] In the above embodiments, preferably, the bottom end of the support block 8 and the bottom end of each foldable leg 5 are fixedly connected with ground nails 9, which can be inserted into the ground to improve stability.

[0044] like Figure 5 As shown, in the above embodiment, preferably, an axial sliding fit structure is provided between the support sleeve 2 and the slide rod 3, and between the slide rod 3 and the telescopic rod 4, so as to guide the slide rod 3 to slide along the axial direction of the support sleeve 2 and the telescopic rod 4 to slide along the axial direction of the slide rod 3, respectively; the bottom end of the support sleeve 2 is provided with a first limiting part for restricting the slide rod 3 from disengaging, and the bottom end of the slide rod 3 is provided with a second limiting part for restricting the telescopic rod 4 from disengaging.

[0045] In the above embodiment, preferably, the axial sliding fit structure includes a second sliding groove 2-1 and an annular limiting baffle 2-2. The two second sliding grooves 2-1 are symmetrically arranged on the inner sidewall of the support sleeve 2. The outer sidewall of the top end of the slide rod 3 is provided with a matching slider 3-1 corresponding to the two second sliding grooves 2-1. The slide rod 3 is slidably installed in the two second sliding grooves 2-1 through the sliders 3-1 on both sides. To prevent the slide rod 3 from sliding down out of the support sleeve 2, an annular limiting baffle 2-2 is arranged around the bottom opening of the support sleeve 2 in the direction of its axis.

[0046] In the above embodiments, preferably, the axial sliding fit structure between the slide rod 3 and the telescopic rod 4 is the same as the structure and principle of the support sleeve 2 and the slide rod 3, and will not be described in detail here.

[0047] In the above embodiments, preferably, the surveying instrument body 10 and the foldable support leg 5 are existing technologies and will not be described in detail.

[0048] How to use this embodiment:

[0049] 1) When in use, first unfold the foldable support leg 5 on the support sleeve 2. During the unfolding of the foldable support leg 5, the reinforcing rod 6 in the receiving groove 5-1 will unfold. The two ends of the reinforcing rod 6 are rotatably connected to the sliding rod 3 in the receiving groove 5-1 respectively. During the unfolding of the reinforcing rod 6, the sliding rod 3 is pushed to move upward in the support sleeve 2. When the sliding rod 3 slides to the top in the support sleeve 2, the foldable support leg 5 is fully unfolded.

[0050] 2) The telescopic rod 4 inside the sliding rod 3 and the support block 8 make the support block 8 contact the ground, thereby improving the stability of multiple foldable legs 5 and improving wind resistance;

[0051] 3) Loosen the locking sleeve 7-2 on the bolt 7-1, then lift the inner rod 1-2. The inner rod 1-2 slides inside the main rod 1-1. Adjust the surveying instrument body 10 to the desired height, then rotate the locking sleeve 7-2. During the rotation, the locking sleeve 7-2 moves closer to the inner rod 1-2 through the action of the thread. Thus, the clamping force between the locking sleeve 7-2 and the inner rod 1-2 fixes the position of the inner rod 1-2, thereby fixing the height position of the surveying instrument body 10.

[0052] 4) During the recovery process, as the three foldable legs 5 fold towards the center, the three reinforcing links 6 fold synchronously and in the same direction as the three foldable legs 5. When the three foldable legs 5 are folded into place, all the reinforcing links 6 are retracted into the corresponding receiving slots 5-1 without occupying additional external space.

[0053] Advantages of this utility model:

[0054] This invention utilizes the synergistic effect of the supporting sleeve 2, foldable legs 5, receiving groove 5-1, reinforcing link 6, sliding rod 3, and telescopic rod 4. When the foldable legs 5 are extended, the reinforcing link 6, sliding rod 3, and foldable legs 5 together form a triangular stable structure, providing additional rigid support for the support. Simultaneously, it evenly distributes wind loads to the three foldable legs, avoiding concentrated stress on a single leg, effectively reducing the relative deflection and swaying of the foldable legs under wind conditions, significantly improving the overall wind resistance, ensuring stable observation by surveying instruments, and reducing measurement errors caused by vibration. Furthermore, when the foldable legs 5 are folded and stored, the reinforcing link 6 can be completely retracted into the receiving groove 5-1, without occupying additional external space, facilitating the carrying and storage of the support.

[0055] This utility model, through the adjustable bracket 1, allows for flexible adjustment of the placement height of the surveying instrument according to the elevation difference of the site terrain and the location of the observation target, so as to avoid obstructions, ensure unobstructed observation line of sight, reduce observation errors caused by obstructed line of sight, and thus quickly match different site terrain and observation task requirements.

[0056] In complex terrain conditions, this invention allows the support block 8 to stably contact the ground by adjusting the extension length of the telescopic rod 4, thereby enhancing the overall support stability of the support structure.

[0057] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable windproof support for a surveying instrument, characterized in that, include: An adjustable bracket for adjusting the placement height of a surveying instrument includes a main rod and an inner rod that slides up and down inside the main rod. It also includes a threaded locking mechanism for locking the inner rod at its height position inside the main rod. The upper part of the inner rod is used to fix the body of the surveying instrument. The support sleeve has its upper end fixedly connected to the main rod, and its lower end outer surface is evenly covered with three foldable support legs. Inside the sleeve, a sliding rod slides up and down, and inside the sliding rod, a telescopic rod slides up and down. The bottom end of the telescopic rod is fixed with a support block. A reinforcing link is provided for each of the foldable legs, and its two ends are rotatably connected to the corresponding foldable leg and slide rod respectively. Each of the foldable legs is provided with a receiving groove for the reinforcing link. When the three foldable legs are folded into place, all the reinforcing links are retracted into their corresponding receiving slots; when the three foldable legs are extended into place, all the reinforcing links are located between the slide rod and the corresponding foldable leg, and together with the slide rod and the corresponding foldable leg, they form a triangular stable structure.

2. The adjustable windproof support for surveying instruments according to claim 1, characterized in that, The threaded locking mechanism includes a bolt and a locking sleeve; A bolt is fixedly connected to the bottom end of each of the two opposite side walls of the inner rod. The main rod is provided with a first sliding groove on each of the two threaded sides, and the first sliding groove extends along the axial direction of the main rod. The inner rod can slide up and down in the first sliding groove through the bolts on both sides. The locking sleeve is screwed onto the bolts on both sides.

3. The adjustable windproof support for surveying instruments according to claim 2, characterized in that, The locking mechanism also includes a control handle, which is fixedly connected to the outer surface of the locking sleeve, and the control handle is provided with anti-slip texture.

4. The adjustable windproof support for surveying instruments according to claim 1, characterized in that, A positioning groove is also provided on one side wall of the main rod, and the positioning groove extends along the axial direction of the main rod; a positioning block that is slidably adapted to the positioning groove is fixedly connected to the outer surface of the inner rod.

5. The adjustable windproof support for surveying instruments according to claim 1, characterized in that, The support block is provided with at least one recessed groove, and a magnet block is fixedly connected in each recessed groove; the magnet block is used to magnetically fix the slide rod to the bottom end of the slide rod after the telescopic rod is retracted.

6. The adjustable windproof support for surveying instruments according to claim 1, characterized in that, Each of the foldable legs is fixedly connected to the bottom of the support block with a ground nail.

7. The adjustable windproof support for surveying instruments according to claim 1, characterized in that, An axial sliding fit structure is provided between the support sleeve and the slide rod, and between the slide rod and the telescopic rod, to guide the slide rod to slide along the axial direction of the support sleeve and the telescopic rod to slide along the axial direction of the slide rod, respectively. The bottom end of the support sleeve is provided with a first limiting part for restricting the slide rod from disengaging, and the bottom end of the slide rod is provided with a second limiting part for restricting the telescopic rod from disengaging.

8. The adjustable windproof support for surveying instruments according to claim 1, characterized in that, One end of the reinforcing rod is rotatably connected to the receiving groove, and the other end of the reinforcing rod is rotatably connected to the sliding rod; During the outward expansion of the three foldable legs, the three reinforcing rods push the sliding rod to slide upward within the support sleeve; when the top of the sliding rod moves to the top of the support sleeve, the three foldable legs are fully extended.

Images