A portable surveying instrument

Abstract

This utility model discloses a portable surveying instrument, comprising: a base, a horizontal adjustment seat mounted on the base, a surveying instrument body mounted on the horizontal adjustment seat, and multiple equidistantly distributed support feet hinged to the outer wall of the base bottom. It also includes: a stand mounted on the outer wall of the base bottom, wherein a lifting component is slidably connected to the inner wall of the stand, and a gear is rotatably mounted on one side of the outer wall of the stand; a limiting component is also mounted on one side of the outer wall of the stand. This portable surveying instrument, through the linkage of gears, the lifting component, and the moving component, achieves flexible switching between support and movement states, allowing for movement of the device without overall lifting, thus improving portability. The limiting component ensures structural stability after state switching, preventing shaking that could affect use. The support feet, in conjunction with casters, ensure stable support during surveying while also enabling flexible and convenient movement, making it suitable for surveying scenarios requiring frequent position adjustments.

Description

Technical Field

[0001] This utility model relates to the field of surveying instrument technology, specifically a portable surveying instrument. Background Technology

[0002] A surveying instrument is a data acquisition, processing, and output device designed and manufactured for surveying operations. It is an instrument capable of various orientation, distance measurement, angle measurement, height measurement, mapping, and photogrammetry. A surveying instrument consists of the instrument body, a leveling base, and several support feet.

[0003] When using a surveying instrument, it is usually supported by the support feet at its bottom. During surveying, the position of the instrument also needs to be adjusted to find the best surveying location. However, the surveying instrument has a certain height and the support feet are supported on the ground, so moving the surveying instrument is relatively troublesome. It needs to be lifted up to move it, and the portability of the surveying instrument needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a portable surveying instrument to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable surveying instrument, comprising: a base, a horizontal adjustment seat mounted on the base, a surveying instrument body mounted on the horizontal adjustment seat, and a plurality of equidistantly distributed support feet hinged to the outer wall of the bottom of the base; further comprising: a stand mounted on the outer wall of the bottom of the base, wherein a lifting component is slidably connected to the inner wall of the stand, and a gear is rotatably mounted on one side of the outer wall of the stand; a limit component is mounted on one side of the outer wall of the stand, and a moving component is rotatably mounted on one side of the outer wall of the support feet; the other end of the moving component is rotatably connected to the bottom of the lifting component.

[0006] The lifting assembly includes a sliding plate and a rack mounted on top of the sliding plate.

[0007] The movable component includes a mounting plate, casters mounted on the bottom outer wall of the mounting plate, and a support rod rotatably mounted on one end of the outer wall of the mounting plate.

[0008] The top end of the support rod is rotatably connected to the bottom outer wall of the sliding plate.

[0009] The limiting assembly includes a fixed plate, a movable rod movably inserted into the fixed plate, a limiting block installed at the bottom of the movable rod, and a spring sleeved on the outside of the movable rod.

[0010] The limiting block has an inverted trapezoidal structure and is engaged between the meshing teeth of the gear.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model discloses a portable surveying instrument that achieves flexible switching between support and movement states through the linkage of gears, lifting components, and moving components. It can move the equipment without lifting the whole unit, thus improving portability. The limiting component ensures structural stability after the state is switched, preventing shaking from affecting use. The support feet and universal wheels work together to ensure stable support during surveying and to achieve flexible and convenient movement, making it suitable for surveying scenarios that require frequent position adjustments. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the mobile state of this utility model;

[0014] Figure 2 This is a structural diagram of the support state of this utility model;

[0015] Figure 3 This is an enlarged structural view of point A of this utility model;

[0016] Figure 4 This is a structural diagram of the lifting component and the moving component of this utility model;

[0017] Figure 5 This is a structural diagram of the limiting component of this utility model.

[0018] In the diagram: 1. Base; 2. Horizontal adjustment seat; 3. Surveying instrument body; 4. Support leg; 5. Stand; 6. Lifting assembly; 601. Rack; 602. Sliding plate; 7. Gear; 8. Limiting assembly; 801. Fixed plate; 802. Movable rod; 803. Limiting block; 804. Spring; 9. Moving assembly; 901. Mounting plate; 902. Casters; 903. Support rod. Detailed Implementation

[0019] 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 protection scope of the present utility model.

[0020] Please see Figure 1-5The present invention provides a portable surveying instrument, comprising: a base 1, a horizontal adjustment seat 2 mounted on the base 1, a surveying instrument body 3 mounted on the horizontal adjustment seat 2, and a plurality of equidistantly distributed support feet 4 hinged to the bottom outer wall of the base 1; and further comprising: a stand 5 mounted on the bottom outer wall of the base 1, a lifting component 6 slidably connected to the inner wall of the stand 5, a gear 7 rotatably mounted on one side outer wall of the stand 5, a limit component 8 mounted on one side outer wall of the stand 5, and a moving component 9 rotatably mounted on one side outer wall of the support feet 4, the other end of the moving component 9 being rotatably connected to the bottom of the lifting component 6.

[0021] It should be noted that: the base 1 serves as the basic load-bearing structure, supporting components such as the leveling seat 2 and the surveying instrument body 3. Multiple hinged support feet 4 contact the ground when in the supported state, providing stable support for the entire structure. The upright frame 5 provides a sliding track for the lifting assembly 6. When the lifting assembly 6 slides within the upright frame 5, it drives the connected moving assembly 9 to move. The gear 7 works in conjunction with the lifting assembly 6; rotating the gear 7 drives the lifting assembly 6 to rise and fall, thereby changing the position of the moving assembly 9. The limiting assembly 8 can limit and fix the gear 7, ensuring that the lifting assembly 6 remains stable in a specific position, thus allowing the moving assembly 9 to smoothly switch between the moving and supported states. Driven by the lifting assembly 6, the moving assembly 9 can have its casters 902 in contact with the ground (moving state) or detached from the ground (supported state), meeting the different needs of the surveying instrument for movement and stable support.

[0022] In a preferred embodiment, the lifting assembly 6 includes a sliding plate 602 and a rack 601 mounted on top of the sliding plate 602.

[0023] It should be noted that: the rack 601 in the lifting assembly 6 meshes with the gear 7. When the gear 7 rotates, it will drive the rack 601 to move up and down; the sliding plate 602 is slidably connected to the inner wall of the frame 5. The movement of the rack 601 will drive the sliding plate 602 to slide up and down synchronously within the frame 5, thereby providing power and guidance for the movement of the moving assembly 9.

[0024] In a preferred embodiment, the movable component 9 includes a mounting plate 901, casters 902 mounted on the bottom outer wall of the mounting plate 901, and a support rod 903 rotatably mounted on one end of the outer wall of the mounting plate 901; the top end of the support rod 903 is rotatably connected to the bottom outer wall of the sliding plate 602.

[0025] It should be noted that: the mounting plate 901 serves as the supporting base for the moving component 9, and the casters 902 installed at the bottom allow for flexible movement of the surveying instrument when in contact with the ground; one end of the support rod 903 is rotatably mounted on the mounting plate 901, and the other end is rotatably connected to the bottom of the sliding plate 602. When the sliding plate 602 slides up and down, it will push or pull the mounting plate 901 through the support rod 903, causing the casters 902 to rise and fall, thus switching between the moving state and the supporting state.

[0026] In a preferred embodiment, the limiting component 8 includes a fixed plate 801, a movable rod 802 movably inserted into the fixed plate 801, a limiting block 803 installed at the bottom of the movable rod 802, and a spring 804 sleeved on the outside of the movable rod 802; the limiting block 803 has an inverted trapezoidal structure and is engaged between the meshing teeth of the gear 7.

[0027] It should be noted that: the fixed plate 801 provides mounting support for other components of the limiting assembly 8; the movable rod 802 can be movably inserted on the fixed plate 801, which can drive the limiting block 803 to move up and down; the spring 804 is sleeved on the outside of the movable rod 802, generating a downward elastic force on the movable rod 802, so that the limiting block 803 always has a downward tendency; under the action of the spring 804, the limiting block 803 can tightly fit the gear 7, realize the limiting of the gear 7, and prevent it from rotating on its own when not in operation.

[0028] Working principle: This portable surveying instrument switches between "support state" and "moving state" through the linkage of gear 7, lifting component 6, and moving component 9, solving the problem that traditional surveying instruments need to be lifted as a whole to move. Limiting component 8 ensures structural stability after switching. The specific process is as follows:

[0029] I. Core Mechanism of State Switching (1) Movement State Switching Figure 1 Pulling the movable rod 802 of the limiting component 8 upwards compresses the spring 804, and the limiting block 803 disengages from the gear 7 (releasing the limit). Rotating the gear 7, it meshes with the rack 601 of the lifting component 6, driving the sliding plate 602 to slide downwards along the inner wall of the frame 5. When the sliding plate 602 moves downwards, it pushes the mounting plate 901 of the moving component 9 downwards through the support rod 903, so that the caster wheel 902 contacts the ground and supports the support foot 4. The support foot 4 retracts upwards around the hinge point of the base 1 (leaving the ground). Releasing the movable rod 802 resets the spring 804, and the limiting block 803 (inverted trapezoidal structure) engages between the teeth of the gear 7, fixing the position of the gear 7. At this time, the caster wheel 902 contacts the ground alone, and the equipment can move flexibly. (2) Support state switching ( Figure 2Pulling the movable lever 802 again releases the limit, causing the gear 7 to rotate in the opposite direction, driving the rack 601 and sliding plate 602 to slide upwards. As the sliding plate 602 moves upwards, it pulls the mounting plate 901 upwards via the support rod 903, causing the caster wheel 902 to leave the ground. Under the influence of gravity, the support foot 4 rotates downwards around the hinge point, contacting the ground and bearing the weight of the equipment, forming a stable support. Releasing the movable lever 802 causes the limit block 803 to re-engage between the teeth of the gear 7, fixing the position of the lifting assembly 6, and the equipment is in the surveying state where the horizontal adjustment seat 2 can be operated.

[0030] II. Synergistic Effect of Key Components (1) Base 1 and Support Leg 4: Base 1 supports the horizontal adjustment seat 2 and the surveying instrument body 3. The support leg 4 achieves the adaptive action of "retracting (moving) - unfolding (supporting)" through the hinge structure. (2) Horizontal Adjustment Seat 2: In the supported state, the surveying instrument body 3 is placed on the horizontal reference plane by adjusting the knob to ensure measurement accuracy (consistent with the function of traditional surveying instruments). (3) Stand 5 and Lifting Component 6: Stand 5 provides vertical guidance for the sliding plate 602. The meshing of the rack 601 and the gear 7 converts the rotational motion into linear motion, accurately controlling the lifting stroke of the moving component 9. (4) Limiting Component 8: The elasticity of the spring 804 allows the limiting block 803 to fit against the gear 7, which can lock the teeth when the rotation stops, preventing the gear 7 from rotating on its own due to vibration when the equipment is moving or surveying.

[0031] In summary, this device achieves one-click switching between "movement and support" through mechanical structure linkage, changing the state without lifting the equipment, significantly improving portability, and is suitable for surveying scenarios that require frequent position adjustments.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A portable surveying instrument, comprising: The base (1), the horizontal adjustment seat (2) mounted on the base (1), the surveying instrument body (3) mounted on the horizontal adjustment seat (2), and multiple equidistant support feet (4) hinged to the bottom outer wall of the base (1); The feature is that it further includes: a stand (5) installed on the bottom outer wall of the base (1), the inner wall of the stand (5) is slidably connected to a lifting component (6), and a gear (7) is rotatably installed on one side outer wall of the stand (5), a limit component (8) is installed on one side outer wall of the stand (5), and a moving component (9) is rotatably installed on one side outer wall of the support foot (4), and the other end of the moving component (9) is rotatably connected to the bottom of the lifting component (6).

2. The portable surveying instrument according to claim 1, characterized in that: The lifting assembly (6) includes a sliding plate (602) and a rack (601) mounted on the top of the sliding plate (602).

3. A portable surveying instrument according to claim 2, characterized in that: The movable component (9) includes a mounting plate (901), casters (902) mounted on the bottom outer wall of the mounting plate (901), and a support rod (903) rotatably mounted on one end of the outer wall of the mounting plate (901).

4. A portable surveying instrument according to claim 3, characterized in that: The top end of the support rod (903) is rotatably connected to the bottom outer wall of the sliding plate (602).

5. A portable surveying instrument according to claim 1, characterized in that: The limiting component (8) includes a fixed plate (801), a movable rod (802) movably inserted into the fixed plate (801), a limiting block (803) installed at the bottom of the movable rod (802), and a spring (804) sleeved on the outside of the movable rod (802).

6. A portable surveying instrument according to claim 5, characterized in that: The limiting block (803) has an inverted trapezoidal structure and is engaged between the meshing teeth of the gear (7).

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