A support device for an engineering surveying level.

Abstract

This utility model relates to the field of surveying and mapping geographic information technology, and discloses a support device for an engineering surveying level, including a protective shell first, a protective shell second fixedly connected to the outer wall of the protective shell first, a motor fixedly connected to the outer wall of the protective shell second, a gear fixedly connected to the drive end of the motor, a support leg first slidably connected to the inner wall of the protective shell first, a rack fixedly connected to the outer wall of the support leg first, the outer side of the rack being meshed with the outer side of the gear, a limit frame fixedly connected to the top of the support leg first, a support plate rotatably connected to the inner wall of the support leg first, and a support leg second rotatably connected to the inner wall of the support leg first. This utility model can automatically and quickly adjust the level to the required measurement height to adapt to the elevation measurement needs of different terrains, and at the same time, it can prevent the support legs from accidentally slipping out during storage, ensuring the safety of the device during storage and transportation.

Description

Technical Field

[0001] This utility model relates to the field of surveying and mapping geographic information technology, and in particular to a support device for an engineering surveying level. Background Technology

[0002] An engineering surveying level support device is a piece of equipment consisting of a tripod, a base, and an adjustment mechanism. The tripod provides stable support for the level instrument, while the base and adjustment mechanism allow for horizontal and vertical adjustments, ensuring the instrument is in a precise measuring position. It is primarily used in construction engineering for layout and elevation control surveying; in road and bridge engineering for topographic mapping and slope measurement; in water conservancy engineering for dam settlement monitoring and canal elevation design; and in geological exploration, providing high-precision elevation data measurement and topographic mapping services for various engineering construction projects.

[0003] A typical engineering surveying leveling instrument support system consists of a tripod, a base, an adjustment mechanism, and connectors. The tripod, as the main support structure, comprises three retractable legs, providing stable foundation support. The base is used to mount the leveling instrument, serving a connecting and securing function. The adjustment mechanism includes foot screws and a fine-tuning screw; the foot screws adjust the height and levelness of the tripod, while the fine-tuning screws fine-tune the horizontal accuracy of the leveling instrument's line of sight. Connectors secure the leveling instrument to the base, ensuring the instrument's stability during measurement. The coordinated operation of all components ensures the accuracy of the leveling measurements.

[0004] In existing technologies, height adjustment relies on manual operation, adjusting the tripod legs one by one by rotating the leveling screws. This not only consumes a lot of time and manpower but also makes it difficult to accurately control the levelness. The operating efficiency is extremely low in complex terrain. At the same time, due to the lack of an effective locking or limiting structure, the legs and other components cannot be firmly restrained when stored. During handling and transportation, when subjected to external forces such as bumps and swaying, the components are prone to displacement and slippage, which affects the assembly accuracy and stability during subsequent use. Therefore, an engineering surveying level support device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a support device for an engineering surveying level, which aims to improve the problem that components in the prior art are prone to displacement and slippage, affecting the assembly accuracy and stability during subsequent use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A support device for an engineering surveying level includes a protective shell first, a protective shell second fixedly connected to the outer wall of the protective shell first, a motor fixedly connected to the outer wall of the protective shell second, a gear fixedly connected to the drive end of the motor, a support leg first slidably connected to the inner wall of the protective shell first, a rack fixedly connected to the outer wall of the support leg first, the outer side of the rack being meshed with the outer side of the gear, a limit frame fixedly connected to the top of the support leg first, a support plate rotatably connected to the inner wall of the support leg first, a support leg second rotatably connected to the inner wall of the support leg first, a limit shell fixedly connected to the inner wall of the protective shell first, a limit block slidably connected to the inner wall of the limit shell, a spring fixedly connected to the right side of the limit block, and a fixing component for fixing the rotation angle of the support leg provided at the top of the protective shell first.

[0008] As a further description of the above technical solution:

[0009] The fixing component includes a rotating block, the bottom end of which is fixedly connected to the top end of the protective shell, a cylinder is fixedly connected to the inner wall of the rotating block, and a trapezoidal block is fixedly connected to the driving end of the cylinder.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the protective shell is fixedly connected to a slide rail, and the outer wall of the support foot is slidably connected to the outer wall of the slide rail.

[0012] As a further description of the above technical solution:

[0013] The right side of the spring is fixedly connected to the inner wall of the limiting shell, and the outer wall of the limiting block is detachably connected to the inner wall of the limiting frame.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the trapezoidal block is slidably connected to two sliding blocks, and the outer walls of the two sliding blocks are slidably connected to the inner wall of the rotating block.

[0016] As a further description of the above technical solution:

[0017] A connecting plate is fixedly connected to the bottom end of the sliding block, and a spring is fixedly connected to the outer wall of the connecting plate;

[0018] As a further description of the above technical solution:

[0019] A rotating rod is fixedly connected to the inner wall of the rotating block, and the outer wall of the second spring is fixedly connected to the inner wall of the rotating block.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the support plate is detachably connected to the outer wall of the second support foot, and the outer walls of the plurality of rotating blocks are rotatably connected to a level.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, through the meshing transmission of the gear and rack driven by the motor, the support foot can achieve stable vertical lifting and lowering within the protective shell. The limiting frame and limiting block at the top of the support foot cooperate to automatically lock the position of the support foot during storage by means of spring force, thereby realizing automated and rapid adjustment of the level to the required measurement height to adapt to the elevation measurement needs of different terrains. At the same time, it can prevent the bracket from accidentally slipping out during storage, ensuring the safety of the device during storage and transportation.

[0024] 2. In this utility model, the fixing component is driven by a cylinder to press the trapezoidal block against the sliding block, which can quickly clamp the support foot to lock its rotation angle, effectively preventing the support foot from shifting due to external forces such as wind and ground vibration during measurement, ensuring that the level instrument always remains in a horizontal state, and improving the reliability of the measurement data. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a support device for an engineering surveying level proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a protective shell for an engineering surveying level support device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the support leg of the engineering surveying level support device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the rotating block of an engineering surveying level support device proposed in this utility model;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Protective shell one; 2. Protective shell two; 3. Motor; 4. Gear; 5. Support foot one; 6. Rack; 7. Limiting frame; 8. Support plate; 9. Support foot two; 10. Limiting shell; 11. Limiting block; 12. Spring one; 13. Slide rail; 14. Rotating block; 15. Cylinder; 16. Trapezoidal block; 17. Sliding block; 18. Connecting plate; 19. Spring two; 20. Rotating rod; 21. Level. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of an engineering surveying level support device, comprising a protective shell 1 for protecting an internal lifting device. A second protective shell 2 is fixedly connected to the outer wall of the first protective shell 1, providing an installation position for a motor 3. The motor 3 serves as a power source, driving a gear 4 to rotate. The drive end of the motor 3 is fixedly connected to the gear 4, which can rotate clockwise and counterclockwise in different directions and at different speeds. A support foot 5 is slidably connected to the inner wall of the first protective shell 1, allowing it to slide up and down within the first protective shell 1. The support height can be adjusted, and the support foot 5 can also be stored. A rack 6 is fixedly connected to the outer wall of the support foot 5. The rack 6 meshes with the gear 4. The vertical lifting and lowering of the support foot 5 is achieved by the motor 3. The outer side of the rack 6 is meshed with the outer side of the gear 4, which converts the rotational motion of the motor 3 into the vertical reciprocating lifting and lowering motion of the rack 6. A limit frame 7 is fixedly connected to the top of the support foot 5. The limit frame 7 is used to cooperate with the limit block 11. When the support foot 5 is stored, it can prevent the support foot 5 from accidentally slipping out. A support plate 8 is rotatably connected to the inner wall of the support foot 5. The support plate 8 is used to support the support foot 9 and fix its angle.

[0034] Support leg 2 9 is rotatably connected to the inner wall of support leg 5. Support leg 2 9 can rotate to adapt to different terrains and enhance support stability. Limiting shell 10 is fixedly connected to the inner wall of protective shell 1. Limiting shell 10 provides a sliding track for limiting block 11 and fixes spring 12. Limiting block 11 is slidably connected to the inner wall of limiting shell 10. Limiting block 11 cooperates with limiting frame 7 to realize the limiting and fixing operation of support leg 5. Spring 12 is fixedly connected to the right side of limiting block 11. Spring 12 is used to push limiting block 11 to realize the reset operation and ensure the reliability of the limiting function. A fixing component is provided at the top of protective shell 1 for fixing the rotation angle of the support leg. The fixing component can lock the rotation angle of the support leg to prevent deviation during measurement. A slide rail 13 is fixedly connected to the inner wall of support foot 1, which provides guidance for the sliding of support foot 5 and ensures its smooth lifting. The outer wall of support foot 5 is slidably connected to the outer wall of slide rail 13. Support foot 5 achieves stable up and down movement through the sliding connection with slide rail 13. The right side of spring 12 is fixedly connected to the inner wall of limiting shell 10. One end of spring 12 is fixed, and the other end is connected to limiting block 11 to provide a reset force for limiting block 11. The outer wall of limiting block 11 is detachably connected to the inner wall of limiting frame 7. When limiting block 11 is inserted into limiting frame 7, it can restrict the movement of support foot 5. When needed, a slightly larger downward force is applied to support foot 5, and limiting block 11 can slide along the outer wall of limiting frame 7 to release the restriction.

[0035] Reference Figure 4 and Figure 5 The fixing component includes a rotating block 14, which is fixed to the top of the protective shell 1 and is used to install components such as the cylinder 15 and the trapezoidal block 16. The bottom end of the rotating block 14 is fixedly connected to the top of the protective shell 1 to ensure a stable connection between the fixing component and the protective shell 1. The cylinder 15 is fixedly connected to the inner wall of the rotating block 14. The cylinder 15 can drive the trapezoidal block 16 to perform reciprocating motion in the vertical direction, thereby controlling the movement of the sliding block 17. The driving end of the cylinder 15 is fixedly connected to the trapezoidal block 16. The cylinder 15 pushes the trapezoidal block 16 to squeeze the sliding block 17, thereby fixing the rotation angle of the support foot. Two sliding blocks 17 are slidably connected to the outer wall of the trapezoidal block 16. When the trapezoidal block 16 moves, it can push the sliding blocks 17 to slide to both sides to lock the support foot.

[0036] The outer walls of both sliding blocks 17 are slidably connected to the inner wall of the rotating block 14. The sliding blocks 17 can slide within the rotating block 14 to achieve locking and unlocking actions. A connecting plate 18 is fixedly connected to the bottom end of the sliding block 17. The connecting plate 18 is used to connect the sliding block 17 and the second spring 19 to transmit the spring force. The outer wall of the connecting plate 18 is fixedly connected to the second spring 19. The second spring 19 is used to push the connecting plate 18 and the sliding block 17 to reset, so that the fixing assembly can be reused. A rotating rod 20 is fixedly connected to the inner wall of the rotating block 14. The rotating rod 20 provides a fixed point for the rotation of the rotating block 14. The outer wall of the second spring 19 is fixedly connected to the inner wall of the rotating block 14. One end of the second spring 19 is fixed, and the other end is connected to the sliding block 17 through the connecting plate 18 to provide a reset force for the sliding block 17.

[0037] Reference Figure 2 The outer wall of the support plate 8 is detachably connected to the outer wall of the second support foot 9. Detachable connection means that when the support plate 8 and the second support foot 9 are rotated in opposite directions, they can be stored. At the same time, the angle of the second support foot 9 can be adjusted. The outer walls of the multiple rotating blocks 14 are rotatably connected to a level 21. The level 21 is used to display the horizontal status of the support device in real time, which is convenient for users to perform leveling operations.

[0038] Working principle: When motor 3 drives gear 4 to rotate clockwise, since gear 4 and rack 6 are in a meshing state, the clockwise rotation of gear 4 will drive rack 6 to move downward. Since rack 6 is fixed to the outer wall of support foot 5, support foot 5 will slide downward along slide rail 13 on the inner wall of protective shell 1, realizing the lowering operation of support foot. Conversely, if motor 3 drives gear 4 to rotate counterclockwise, gear 4 will drive rack 6 to move upward, and support foot 5 will slide upward along slide rail 13 to achieve the rising operation. At this time, limit frame 7 moves upward with support foot 5. When the limiting frame 7 contacts the limiting block 11, the limiting block 11 can be inserted into the limiting frame 7 under the elastic force of the spring 12. At this time, the position of the support foot 5 is limited, thereby completing the storage operation of the support foot 5. The support foot 9 can be opened clockwise by manually turning it to increase the support surface. The support plate 8 can be turned counterclockwise to lock the support foot 9 to fix the angle of the support foot 9. When the support plate 8 is turned clockwise, the support plate 8 releases the restriction on the support foot 9. At this time, the support foot 9 can be turned counterclockwise to complete the storage operation of the support foot 9.

[0039] When cylinder 15 drives trapezoidal block 16 to move upward, the inclined surface of trapezoidal block 16 will contact and compress the inner walls of the two sliding blocks 17. As trapezoidal block 16 moves upward, the horizontal component of its inclined surface will push sliding blocks 17 to move to both sides, causing the two sliding blocks 17 to move away from each other. Sliding blocks 17 drive spring 19 to move together through connecting plate 18. At this time, spring 19 is compressed, and after sliding blocks 17 move outward, they will contact and lock with the outer wall of level 21, thereby fixing the rotation angle of the support foot and ensuring that the support foot will not rotate arbitrarily during measurement. Conversely, when cylinder 15 drives trapezoidal block 16 to move downward, the compressive force of trapezoidal block 16 on sliding block 17 disappears, and the compressed spring 19 will release its elasticity, pushing sliding blocks 17 to move inward through connecting plate 18, causing the two sliding blocks 17 to move closer to each other and releasing the locking state of the support foot. At this time, the support foot can rotate freely to adapt to the support requirements of different terrains.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A support device for an engineering surveying level, comprising a protective shell (1), characterized in that: A second protective shell (2) is fixedly connected to the outer wall of the first protective shell (1). A motor (3) is fixedly connected to the outer wall of the second protective shell (2). A gear (4) is fixedly connected to the drive end of the motor (3). A support foot (5) is slidably connected to the inner wall of the first protective shell (1). A rack (6) is fixedly connected to the outer wall of the support foot (5). The outer side of the rack (6) is meshed with the outer side of the gear (4). A [missing information] is fixedly connected to the top of the support foot (5). The limiting frame (7) has a support plate (8) rotatably connected to the inner wall of the first support foot (5), a second support foot (9) rotatably connected to the inner wall of the first support foot (5), a limiting shell (10) fixedly connected to the inner wall of the first protective shell (1), a limiting block (11) slidably connected to the inner wall of the limiting shell (10), a spring (12) fixedly connected to the right side of the limiting block (11), and a fixing component for fixing the rotation angle of the support foot is provided at the top of the first protective shell (1).

2. The engineering surveying level support device according to claim 1, characterized in that: The fixing component includes a rotating block (14), the bottom end of which is fixedly connected to the top end of the protective shell (1), and a cylinder (15) is fixedly connected to the inner wall of the rotating block (14). A trapezoidal block (16) is fixedly connected to the driving end of the cylinder (15).

3. The engineering surveying level support device according to claim 1, characterized in that: The inner wall of the protective shell (1) is fixedly connected to a slide rail (13), and the outer wall of the support foot (5) is slidably connected to the outer wall of the slide rail (13).

4. The engineering surveying level support device according to claim 1, characterized in that: The right side of the spring (12) is fixedly connected to the inner wall of the limiting shell (10), and the outer wall of the limiting block (11) is detachably connected to the inner wall of the limiting frame (7).

5. The engineering surveying level support device according to claim 2, characterized in that: The outer wall of the trapezoidal block (16) is slidably connected to two sliding blocks (17), and the outer walls of the two sliding blocks (17) are slidably connected to the inner wall of the rotating block (14).

6. The engineering surveying level support device according to claim 5, characterized in that: The bottom end of the sliding block (17) is fixedly connected to a connecting plate (18), and the outer wall of the connecting plate (18) is fixedly connected to a spring (19).

7. The engineering surveying level support device according to claim 6, characterized in that: The inner wall of the rotating block (14) is fixedly connected to a rotating rod (20), and the outer wall of the second spring (19) is fixedly connected to the inner wall of the rotating block (14).

8. The engineering surveying level support device according to claim 2, characterized in that: The outer wall of the support plate (8) is detachably connected to the outer wall of the second support foot (9), and the outer walls of the plurality of rotating blocks (14) are rotatably connected to a level (21).

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