Portable surveying and mapping instrument applied to land surveying and mapping

Abstract

The utility model relates to the technical field of surveying and mapping instruments, in particular to a portable surveying and mapping instrument applied to land surveying and mapping, which comprises a base, the base is used for placing the surveying and mapping instrument, the base is rotatably connected with a plurality of foldable supporters, and the plurality of supporters are annularly distributed on the base; the supporting device sequentially comprises an upper support, a middle support and a lower support, the upper support is rotationally connected with the base, and the middle support is movably connected with the upper support and the lower support; the supporting device is further provided with a first locking part and a second locking part, the first locking part is used for locking the upper support and the middle support, and the second locking part is used for locking the middle support and the lower support. By means of the base and the supporting device, the upper support, the middle support and the lower support of the supporting device can be folded and stored in a matched mode, and compared with a traditional sliding type tripod, the occupied size is smaller, the portability is greatly improved, and the convenience of field operation is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of surveying instruments and equipment, specifically to a portable surveying instrument used for land surveying. Background Technology

[0002] Surveying instruments, simply put, are instruments and devices designed and manufactured for data acquisition, processing, and output in surveying operations. They include various instruments used for orientation, distance measurement, angle measurement, height measurement, mapping, and photogrammetry, required for surveying work during the planning, design, construction, and operation management phases of engineering projects.

[0003] Currently, surveying instruments are typically used in conjunction with tripods. Surveyors need to carry both the tripod and the surveying instrument to the designated location to perform surveying work. However, current tripods are too long to fit in cases and can only be carried by hand or on the shoulder, resulting in poor portability and inconvenience for use in the field. Utility Model Content

[0004] The purpose of this invention is to provide a portable surveying instrument for land surveying, in order to overcome the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A portable surveying instrument for land surveying includes a base for holding the surveying instrument. Multiple foldable supports are rotatably connected to the base, and these supports are arranged in a circumferential pattern on the base. Each support comprises an upper support, a middle support, and a lower support. The upper support is rotatably connected to the base, and the middle support is movably connected to both the upper and lower supports. Each support also has a first locking part and a second locking part. The first locking part locks the upper and middle supports, and the second locking part locks the middle and lower supports.

[0007] Furthermore, the first locking part includes a locking seat fixedly disposed at one end of the upper support away from the base, a locking rod threadedly connected to the locking seat, and the locking rod passing through the locking seat and threadedly connected to the upper support.

[0008] Furthermore, a cover plate is provided on the locking seat, one end of which is rotatably connected to the locking seat, and the other end is snapped into the locking seat.

[0009] Furthermore, rotating rods are fixedly provided on both sides of the middle support end, and both the middle support and the rotating rods are slidably connected to the upper support.

[0010] Furthermore, the rotating rods are rotatably connected to the sliders, and the sliders are slidably connected to the upper support.

[0011] Furthermore, the lower support is slidably connected to the middle support, and a plug is provided at the end of the lower support away from the middle support.

[0012] Furthermore, the second locking part includes two locking blocks, which are slidably disposed at one end of the lower support near the middle support, and a compression spring is fixedly disposed between the two locking blocks. The middle support near the lower support has a locking groove adapted to the two locking blocks.

[0013] In the above technical solution, the portable surveying instrument for land surveying provided by this utility model has the following beneficial effects:

[0014] With its base and support, the upper, middle, and lower supports of the support can be folded together for storage. Compared to traditional sliding tripods, it occupies less space, greatly improves portability, and enhances the convenience of field operations.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0016] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0019] Figure 2 A schematic diagram of the central support structure provided in an embodiment of this utility model;

[0020] Figure 3 This is a cross-sectional view of the second locking part provided in an embodiment of the present utility model;

[0021] Figure 4 This is a partially enlarged structural diagram of embodiment A of the present utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Base; 2. Support; 21. Upper support; 22. Middle support; 221. Rotating rod; 222. Sliding block; 23. Lower support; 231. Insert rod; 3. First locking part; 31. Locking seat; 32. Locking rod; 33. Cover plate; 4. Second locking part; 41. Locking block; 42. Locking groove; 43. Compression spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure 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 disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0025] Please see Figure 1-4 A portable surveying instrument for land surveying includes a base 1 for holding the surveying instrument. Multiple foldable supports 2 are rotatably connected to the base 1, and the supports 2 are arranged in a circumferential pattern on the base 1. Each support 2 includes an upper support 21, a middle support 22, and a lower support 23. The upper support 21 is rotatably connected to the base 1, and the middle support 22 is movably connected to both the upper support 21 and the lower support 23. Each support 2 also has a first locking part 3 and a second locking part 4. The first locking part 3 locks the upper support 21 and the middle support 22, and the second locking part 4 locks the middle support 22 and the lower support 23.

[0026] There are three supports 2. The lower support 23 can be placed inside the middle support 22, and the middle support 22 can be placed inside the upper support 21, thereby completing the folding and storage of the supports 2, greatly reducing the volume occupied, and making them able to be put into a box.

[0027] Furthermore, the first locking part 3 includes a locking seat 31 fixedly disposed at the end of the upper support 21 away from the base 1. A locking rod 32 is threadedly connected to the locking seat 31, and the locking rod 32 passes through the locking seat 31 and is threadedly connected to the upper support 21. When the locking rod 32 is rotated, the end of the locking rod 32 passes through the locking seat 31 and the upper support 21 in sequence until it abuts against the middle support 22. The locking rod 32 continues to move, pressing the middle support 22 against the upper support 21, and locking the two together by the friction between the middle support 22 and the upper support 21.

[0028] Furthermore, a cover plate 33 is provided on the locking seat 31. One end of the cover plate 33 is rotatably connected to the locking seat 31, and the other end is snap-fitted to the locking seat 31. During use, the cover plate 33 abuts against the middle support 22, thereby preventing the middle support 22 from rotating relative to the upper support 21. This further enhances the locking effect of both the middle support 22 and the upper support 21, in addition to the locking effect achieved by the locking rod 32. The cover plate 33 can be fixed or separated from the locking seat 31 through the snap-fit ​​connection. The snap-fit ​​connection is a common technique used by those skilled in the art and will not be described in detail here.

[0029] Furthermore, rotating rods 221 are fixedly provided on both sides of the end of the middle support 22, and both the middle support 22 and the rotating rods 221 are slidably connected to the upper support 21. The rotating rods 221 are circular in shape. Since the rotating rods 221 are slidably connected to the upper support 21, the middle support 22 can rotate relative to the upper support 21 through the rotating rods 221, thereby completing the folding and storage.

[0030] Furthermore, the rotating rod 221 is rotatably connected to the slider 222, and the slider 222 is slidably connected to the upper support 21. This improves the stability of the rotating rod 221 during sliding and rotation.

[0031] Furthermore, the lower support 23 is slidably connected within the middle support 22, and a rod 231 is provided at the end of the lower support 23 away from the middle support 22. The rod 231 is used to insert into the soil, and the lower support 23 can be slidably stored within the middle support 22.

[0032] Furthermore, the second locking part 4 includes two locking blocks 41, which are slidably disposed at the end of the lower support 23 near the middle support 22. A compression spring 43 is fixedly disposed between the two locking blocks 41. The end of the middle support 22 near the lower support 23 has a locking groove 42 that matches the two locking blocks 41. Under the action of the compression spring 43, the locking blocks 41 extend into the corresponding locking grooves 42, thereby locking the middle support 22 and the lower support 23. It can be understood that the locking grooves 42 can be flared away from the lower support 23 to facilitate the locking blocks 41 exiting the locking grooves 42 and releasing the lock.

[0033] Working principle:

[0034] When in use, first unscrew the middle support 22 from the upper support 21, then pull the lower support 23 out from the middle support 22 until the locking block 41 extends into the locking groove 42 to lock the middle support 22 and the lower support 23. Then adjust the relative position of the middle support 22 in the upper support 21 through the first locking part 3, and then close the cover plate 33 to complete the deployment of the tripod.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A portable surveying instrument for use in land surveying, comprising a base (1) for placing the surveying instrument, characterised in that: The base (1) is rotatably connected with a plurality of foldable support devices (2), and the plurality of support devices (2) are distributed in a ring shape on the base (1); the support device (2) comprises an upper support (21), a middle support (22) and a lower support (23) in sequence, the upper support (21) is rotatably connected with the base (1), and the middle support (22) is movably connected with the upper support (21) and the lower support (23) respectively; the support device (2) is further provided with a first locking portion (3) and a second locking portion (4) respectively, the first locking portion (3) is used for locking the upper support (21) and the middle support (22), and the second locking portion (4) is used for locking the middle support (22) and the lower support (23); the first locking portion (3) comprises a locking seat (31) fixedly arranged at one end of the upper support (21) away from the base (1), the locking seat (31) is threadedly connected with a locking rod (32), and the locking rod (32) is threadedly connected with the upper support (21) through the locking seat (31); the locking seat (31) is provided with a cover plate (33), one end of the cover plate (33) is rotatably connected with the locking seat (31), and the other end is buckled with the locking seat (31); the second locking portion (4) comprises two locking blocks (41), the two locking blocks (41) are slidably arranged at one end of the lower support (23) close to the middle support (22), and a compression spring (43) is fixedly arranged between the two locking blocks (41), and the middle support (22) is provided with locking grooves (42) matched with the two locking blocks (41) at one end close to the lower support (23).

2. The portable surveying instrument for land surveying according to claim 1, wherein, The middle support (22) is fixedly provided with a rotating rod (221) at both sides of the end portion, and the middle support (22) and the rotating rod (221) are slidably connected with the upper support (21).

3. The portable surveying instrument for land surveying according to claim 2, wherein, The rotating rod (221) is rotatably connected in the sliding block (222), and the sliding block (222) is slidably connected with the upper support (21).

4. The portable surveying instrument for land surveying according to claim 1, wherein, The lower support (23) is slidably connected in the middle support (22), and the lower support (23) is provided with an insertion rod (231) at one end away from the middle support (22).

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