Engineering surveying level gauge

Abstract

The utility model discloses an engineering surveying level gauge, which belongs to the field of engineering surveying and comprises a bottom frame, an arc-shaped supporting sheet is fixedly mounted on the upper surface of the bottom frame, a foot rod is fixedly mounted on the lower surface of the bottom frame through a bolt, and a connecting groove is formed in the top of the upper surface of the arc-shaped supporting sheet. A bent end is arranged at the edge of the surface of one side of the arc-shaped supporting piece, an adjusting nut shaft is slidably clamped to the inner arc face of the connecting groove, a threaded hole is formed in the front face of the adjusting nut shaft, a fine adjustment threaded rod is connected into the threaded hole in one side of the adjusting nut shaft in a penetrating mode, and one end of the fine adjustment threaded rod is connected to the bent end in a penetrating mode; through the rotation of the fine adjustment threaded rod and the gear, the rotation adjustment fine adjustment and coarse adjustment of the angle of the leveling instrument body can be realized, so that the leveling instrument body can be in a more stable measurement state, and the influence of external environmental factors on measurement data is reduced.

Description

Technical Field

[0001] This utility model relates to the field of engineering surveying technology, specifically an engineering surveying level. Background Technology

[0002] Leveling instruments are used to determine the slope and elevation changes of roads and bridges, ensuring the smoothness of roads and the structural stability of bridges. For example, in highway construction, accurate leveling can ensure that the road surface slope meets drainage requirements and avoid water accumulation affecting driving safety. In bridge construction, leveling instruments are used to control the elevation of bridge piers and abutments, ensuring that the elevation of each part of the bridge is accurate and that the bridge can withstand the design load.

[0003] In current engineering surveying work, the adjustment of the level instrument mainly relies on the adjustment base. However, the adjustment capability of the adjustment base is significantly limited, and it can only make fine adjustments to the level instrument within a limited range. It cannot meet the adjustment requirements of the level instrument's height and angle when measuring higher positions. This deficiency is particularly prominent in surveying tasks involving high-rise buildings, large bridges, and other projects, often making it difficult to carry out the surveying work smoothly, and may even affect the accuracy and reliability of the measurement results.

[0004] Therefore, this utility model provides an engineering surveying level to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention provides an engineering surveying level instrument, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: It includes a base frame, an arc-shaped support plate fixedly mounted on the upper surface of the base frame, and a foot rod fixedly mounted on the lower surface of the base frame by bolts. A connecting groove is formed at the top of the upper surface of the arc-shaped support plate, and a bent end is provided at the edge of one side surface of the arc-shaped support plate. An adjusting nut shaft is slidably engaged with the inner arc surface of the connecting groove. A threaded hole is formed on the front of the adjusting nut shaft, and a fine-tuning threaded rod is passed through the threaded hole on one side of the adjusting nut shaft. One end of the fine-tuning threaded rod is connected through to the bent end. A connecting end is provided in the middle of the upper surface of the adjusting nut shaft, and a ring-shaped support plate is passed through the upper surface of the connecting end. An extension end A is provided on one side of the outer arc surface of the ring-shaped support plate, and the surface of the extension end A is connected through to the connecting end.

[0009] As a preferred technical solution of this application, the top of the ring-shaped support plate on the side away from the extension end A is provided with an extension end B, the upper surface of the extension end B is provided with a hole, a gear A is fixedly installed on the upper surface of the ring-shaped support plate, an annular pressure plate is fixedly installed on the upper surface of the gear A, and the gear B is movably connected to the upper surface of the extension end B.

[0010] As a preferred technical solution of this application, the outer arc surface sawtooth of gear B meshes with the outer arc surface of gear A, the lower surface of gear A is adapted to the top of the adjusting nut shaft, and an L-shaped connecting seat is fixedly installed on the upper surface of the annular pressure plate.

[0011] As a preferred technical solution of this application, the bottom of the L-shaped connector is an arc-shaped snap-fit ​​end, and a U-shaped panel is provided on the side of the L-shaped connector away from the arc-shaped snap-fit ​​end. An embedding groove is provided on one side surface of the U-shaped panel.

[0012] As a preferred technical solution of this application, an abutment ring is fixedly installed on the back of the L-shaped connector, and a retaining element is provided on both sides of the outer arc surface of the abutment ring. An abutment arm is provided at one end of the retaining element, and the abutment arm is placed inside the L-shaped connector.

[0013] As a preferred technical solution of this application, the abutment ring is movably engaged with the inner arc surface of the U-shaped panel to form a level body, the outer arc surface of the level body is fitted and connected to the abutment connecting arms on both sides, and the level body is placed on the foot rod.

[0014] (III) Beneficial Effects

[0015] 1. By adjusting the rotation of the screw rod and gear, the level body can be rotated and adjusted. Fine and coarse adjustments help to keep the level body in a more stable measurement state and reduce the impact of external environmental factors on the measurement data.

[0016] 2. The abutment ring allows for easy detachment from the frame, providing users with great flexibility and meeting diverse usage needs of the level in different scenarios. Convenient and efficient disassembly saves installation time and effort. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of an engineering surveying level;

[0018] Figure 2 This is a schematic diagram of the overall structure of a level instrument body installation in an engineering surveying level instrument.

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the arc-shaped support plate of an engineering surveying level.

[0020] Figure 4 This is a schematic diagram of the disassembled structure of an L-shaped connector for an engineering surveying level.

[0021] In the picture:

[0022] 1. Base frame; 101. Leg rod; 2. Arc-shaped support plate; 201. Connecting groove; 202. Bent end; 3. Adjusting nut shaft; 301. Connecting end; 4. Fine-tuning threaded rod; 5. Gear A; 6. Annular pressure plate; 7. Gear B; 8. L-shaped connecting seat; 801. U-shaped panel; 802. Embedded groove; 9. Abutment ring; 901. Clip; 902. Abutment connecting arm; 10. Level instrument body; 11. Ring-shaped support plate; 111. Extension end A; 112. Extension end B. Detailed Implementation

[0023] 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.

[0024] This utility model provides an engineering surveying level, such as Figures 1 to 4 As shown, the system includes a base frame 1. An arc-shaped support plate 2 is fixedly mounted on the upper surface of the base frame 1. A foot rod 101 is fixedly mounted on the lower surface of the base frame 1 by bolts. A connecting groove 201 is formed at the top of the upper surface of the arc-shaped support plate 2. A bent end 202 is formed at the edge of one side surface of the arc-shaped support plate 2. An adjusting nut shaft 3 is slidably engaged with the inner arc surface of the connecting groove 201. A threaded hole is formed on the front of the adjusting nut shaft 3. A fine-tuning threaded rod 4 is passed through the threaded hole on one side of the adjusting nut shaft 3. One end of the fine-tuning threaded rod 4 is connected through the bent end 202. A connecting end 301 is formed in the middle of the upper surface of the adjusting nut shaft 3. A ring-shaped support plate 11 is connected through the upper surface of the connecting end 301. The outer arc surface of the ring-shaped support plate 11 is provided with an extension end A111, the surface of the extension end A111 is connected to the connecting end 301 through the arc. The top of the side of the ring-shaped support plate 11 away from the extension end A111 is provided with an extension end B112, the upper surface of the extension end B112 is provided with a hole, the upper surface of the ring-shaped support plate 11 is fixedly installed with a gear A5, the upper surface of the gear A5 is fixedly installed with an annular pressure plate 6, the upper surface of the extension end B112 is movably connected with a gear B7, the sawtooth part of the outer arc surface of the gear B7 meshes with the outer arc surface of the gear A5, the lower surface of the gear A5 is adapted to the top of the adjusting nut shaft 3, and the upper surface of the annular pressure plate 6 is fixedly installed with an L-shaped connecting seat 8.

[0025] The fine-tuning threaded rod 4 is securely mounted on the motor, and the motor is assembled and firmly fixed at the bent end 202 on one side of the arc-shaped support plate 2. The adjusting nut shaft 3 is adapted to the connecting groove 201 by sliding snap-fit, and its connecting end 301 is tightly fixedly connected to the ring-shaped support plate 11. On the extension end A111 at one end of the ring-shaped support plate 11, the gear A5 is precisely fixed, while the gear B7 can be flexibly connected to the extension end B112.

[0026] When coarse adjustment is required, the motor starts to run, driving gear B7 to rotate. Due to the meshing transmission principle between gears, the rotation of gear B7 will drive gear A5, which meshes with it, to rotate synchronously. The rotation of gear A5 will then cause the L-shaped connecting seat 8 connected to it to rotate. In this way, the top level body 10 connected to the L-shaped connecting seat 8 can realize the rotation adjustment of the angle to meet the needs of level angle adjustment in different measurement scenarios.

[0027] When fine-tuning is performed, the motor starts running, and its output power drives the fine-tuning threaded rod 4 connected to it to start rotating. Since the fine-tuning threaded rod 4 and the adjusting nut shaft 3 are connected by threads, when the fine-tuning threaded rod 4 rotates, it will make back-and-forth linear motion in the threaded hole of the adjusting nut shaft 3. The transmission of this linear motion causes the adjusting nut shaft 3 to also be displaced.

[0028] The adjusting nut shaft 3, as a transmission component, is tightly connected to the top ring-shaped support plate 11. Therefore, its movement will drive the ring-shaped support plate 11 to move together. The gear A5 is also firmly fixed on the ring-shaped support plate 11, so the gear A5 will also be displaced with the movement of the ring-shaped support plate 11. At the same time, the gear A5 and the gear B7 are in a meshing state. During the movement of the gear A5, the meshing action will drive the gear B7 to rotate together. This fine adjustment helps to keep the level instrument body 10 in a more stable measurement state and reduce the influence of external environmental factors on the measurement data.

[0029] The bottom of the L-shaped connector 8 is an arc-shaped snap-fit ​​end. A U-shaped panel 801 is provided on the side of the L-shaped connector 8 away from the arc-shaped snap-fit ​​end. An embedding groove 802 is opened on one side surface of the U-shaped panel 801. An abutment ring 9 is fixedly installed on the back of the L-shaped connector 8. A retainer 901 is provided on both sides of the outer arc surface of the abutment ring 9. An abutment arm 902 is provided at one end of the retainer 901. The abutment arm 902 is placed inside the L-shaped connector 8. The level instrument body 10 is movably snapped between the abutment ring 9 and the inner arc surface of the U-shaped panel 801. The outer arc surface of the level instrument body 10 is in close contact with the abutment arms 902 on both sides. The level instrument body 10 is placed on the foot rod 101.

[0030] The level instrument body 10 is installed inside the L-shaped connector 8. An embedding groove 802 is designed on the U-shaped panel 801 of the L-shaped connector 8. A retaining ring 9 is firmly installed on one side surface of the embedding groove 802. It is worth noting that the inner arc surface of the retaining ring 9 fits against the outer arc surface of the level instrument body 10, which enhances the stability of the connection.

[0031] The connecting arms 902 extending from both sides of the connecting ring 9 will abut against both sides of the level instrument body 10 with their protruding ends. In this way, the level instrument body 10 can be quickly installed on the frame. This installation method is convenient and efficient, saving installation time and effort. In addition, in actual use, when it is necessary to manually operate the level instrument body 10, it can be easily separated from the connection state with the frame, providing users with great flexibility and meeting the diverse usage needs of the level instrument body 10 in different scenarios.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An engineering surveying level, comprising a base frame (1), characterized in that: An arc-shaped support plate (2) is fixedly installed on the upper surface of the base frame (1), and a foot rod (101) is fixedly installed on the lower surface of the base frame (1) by bolts. A connecting groove (201) is opened at the top of the upper surface of the arc-shaped support plate (2), and a bent end (202) is provided at the edge of one side surface of the arc-shaped support plate (2). An adjusting nut shaft (3) is slidably engaged with the inner arc surface of the connecting groove (201). A threaded hole is opened on the front side of the adjusting nut shaft (3). A fine-tuning threaded rod (4) is connected through a threaded hole on one side of (3). One end of the fine-tuning threaded rod (4) is connected through a bent end (202). A connecting end (301) is provided in the middle of the upper surface of the adjusting nut shaft (3). A ring-shaped support plate (11) is connected through the upper surface of the connecting end (301). An extension end A (111) is provided on one side of the outer arc surface of the ring-shaped support plate (11). The surface of the extension end A (111) is connected through the connecting end (301).

2. The engineering surveying level according to claim 1, characterized in that: The ring-shaped support plate (11) has an extension end B (112) on the top side away from the extension end A (111). The upper surface of the extension end B (112) has a hole. The upper surface of the ring-shaped support plate (11) is fixedly installed with a gear A (5). The upper surface of the gear A (5) is fixedly installed with an annular pressure plate (6). The upper surface of the extension end B (112) is movably connected with a gear B (7).

3. The engineering surveying level according to claim 2, characterized in that: The outer arc surface sawtooth of gear B (7) meshes with the outer arc surface of gear A (5), the lower surface of gear A (5) is adapted to the top of the adjusting nut shaft (3), and an L-shaped connecting seat (8) is fixedly installed on the upper surface of the annular pressure plate (6).

4. The engineering surveying level according to claim 3, characterized in that: The bottom of the L-shaped connector (8) is an arc-shaped snap-fit ​​end. A U-shaped panel (801) is provided on the side of the L-shaped connector (8) away from the arc-shaped snap-fit ​​end. An embedding groove (802) is provided on one side surface of the U-shaped panel (801).

5. The engineering surveying level according to claim 4, characterized in that: An abutment ring (9) is fixedly installed on the back of the L-shaped connector (8). The outer arc surface of the abutment ring (9) is provided with a clip (901) on both sides. One end of the clip (901) is provided with an abutment arm (902), which is placed inside the L-shaped connector (8).

6. The engineering surveying level according to claim 5, characterized in that: The abutment ring (9) is movably engaged with the inner arc surface of the U-shaped panel (801) to form a level body (10). The outer arc surface of the level body (10) is fitted and connected to the abutment connecting arms (902) on both sides. The level body (10) is placed on the foot rod (101).

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