Building foundation pit construction measuring device

Abstract

The utility model relates to a building foundation pit construction measuring device which comprises a supporting frame, a telescopic extension mechanism is arranged on the top of the supporting frame, a depth measuring structure is arranged in the telescopic extension mechanism, and the telescopic extension mechanism comprises a U-shaped frame fixedly installed on the top of the supporting frame. First guide rails are fixedly mounted on the left side and the right side of the inner wall of the U-shaped frame. According to the building foundation pit construction measuring device, a first plate slides in a U-shaped frame through a first guide rail, a second guide rail limits a second plate to move in an n-shaped frame, and during operation, a motor A drives a first lead screw to rotate and pushes the first plate and the n-shaped frame to move backwards; after in-place, a motor B drives a second lead screw to rotate and drives a second plate and a depth measuring structure on the top of the second plate to move rightwards and be far away from the inner wall of the foundation pit, so that the lifting rope is not in contact with the inner wall of the foundation pit when the depth measuring structure is used for measuring, scratching is avoided, and the measuring accuracy is ensured.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit construction technology, specifically a construction foundation pit measurement device. Background Technology

[0002] In the construction industry, foundation pit construction is a crucial part of infrastructure development. A foundation pit is an excavated pit dug according to the foundation design location, base elevation, and foundation dimensions. Its construction quality directly affects the stability and safety of subsequent buildings. To ensure the accuracy and efficiency of foundation pit construction, construction surveying is particularly important. However, traditional foundation pit surveying methods present many challenges, especially in the surveying of deep and large foundation pits.

[0003] Traditional measuring devices typically rely on ropes to suspend heavy objects inside the foundation pit for measurement. This method is not only complex and inefficient, but also poses safety hazards. During the suspension process, the ropes are prone to scraping or contacting the inner wall of the foundation pit, which not only causes wear and damage to the ropes, but also affects the accuracy of the measurement. Therefore, a construction foundation pit measuring device is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a construction foundation pit surveying device to overcome the deficiencies of the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A construction foundation pit surveying device includes a support frame, the top of which is provided with a telescopic extension mechanism, and the interior of the telescopic extension mechanism is provided with a depth measuring structure.

[0007] The telescopic extension mechanism includes a U-shaped frame fixedly installed on the top of the support frame. Guide rails are fixedly installed on the left and right sides of the inner wall of the U-shaped frame. A plate located inside the U-shaped frame is slidably installed on the outside of the two guide rails. A motor A is fixedly installed on the surface of the U-shaped frame. A lead screw penetrating into the interior of the plate is fixedly installed at the output end of motor A. The lead screw is rotatably installed inside the front wall of the U-shaped frame. The lead screw is threaded into the interior of the plate. A positioning device is fixedly installed on the back of the plate. On the right side of the first lead screw, a U-shaped frame is fixedly installed on both the left and right sides of the inner wall of the U-shaped frame. A second guide rail is slidably installed on the outside of the two second guide rails. The depth measuring structure is set on the top of the second plate. A motor B is fixedly installed on the surface of the first plate. A second lead screw that penetrates into the interior of the second plate is fixedly installed at the output end of the motor B. The second lead screw is rotatably installed inside the first plate. The second lead screw is threaded inside the second plate. The second lead screw is rotatably installed on the back of the inner wall of the U-shaped frame.

[0008] The beneficial effects of this utility model are as follows: This device utilizes a support frame to stabilize it beside the foundation pit. A first guide rail allows a first plate to slide within the U-shaped frame, while a second guide rail restricts the movement of the second plate within the U-shaped frame. During operation, motor A drives the first lead screw to rotate, pushing the first plate and the U-shaped frame backward. Once in position, motor B drives the second lead screw to rotate, causing the second plate and its top depth measuring structure to move to the right, away from the inner wall of the foundation pit. This ensures that the suspension rope of the depth measuring structure will not contact the inner wall of the foundation pit during measurement, preventing scratches and ensuring measurement accuracy.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the depth measurement structure includes two side brackets fixedly installed on the top of the second plate. A motor C is fixedly installed on the right side of the right side bracket, and a take-up reel is fixedly installed at the output end of the motor C. The take-up reel is rotatably installed between the two side brackets. A soft rubber measuring tape is fixedly installed inside the take-up reel, and a counterweight assembly is provided at the bottom of the soft rubber measuring tape. A camera bracket is fixedly installed on the back of the two side brackets, and a camera is fixedly installed inside the camera bracket. The shooting end of the camera faces the take-up reel, and a display screen electrically connected to the camera is fixedly installed on the surface of the U-shaped frame.

[0011] Furthermore, the counterweight assembly includes a metal cylinder fixedly installed at the bottom of the soft rubber measuring tape. A bottom cover is threaded onto the bottom of the metal cylinder, and a pressure sensor is fixedly installed at the bottom of the bottom cover. A battery electrically connected to the pressure sensor is disposed inside the metal cylinder. A controller located at the bottom of the motor C is fixedly installed on the right side of the side bracket. The controller is electrically connected to the pressure sensor, and the controller is electrically connected to the motor C.

[0012] Furthermore, two limiting plates are fixedly installed on the back of the U-shaped frame, and the two No. 1 guide rails are respectively located in front of the two limiting plates. The No. 1 lead screw is rotatably installed on the surface of the left limiting plate.

[0013] Furthermore, a label is fixedly installed on the top of the U-shaped frame near its right side, and the label indicates the height of the support frame, U-shaped frame, side support and counterweight assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the construction measurement device for building foundation pits of this utility model from one perspective.

[0015] Figure 2 This is a schematic diagram of the construction surveying device for building foundation pits from another perspective.

[0016] Figure 3This is a schematic diagram of the exploded structure of the construction foundation pit measurement device of this utility model;

[0017] Figure 4 This is a schematic diagram of the exploded structure of the counterweight assembly;

[0018] Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle;

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Support frame; 2. U-shaped frame; 3. No. 1 guide rail; 4. No. 1 plate; 5. Motor A; 6. No. 1 lead screw; 7. U-shaped frame; 8. No. 2 guide rail; 9. No. 2 plate; 10. Motor B; 11. No. 2 lead screw; 12. Side bracket; 13. Motor C; 14. Winding reel; 15. Soft rubber measuring tape; 16. Camera bracket; 17. Camera; 18. Display screen; 19. Metal cylinder; 20. Bottom cover; 21. Pressure sensor; 22. Battery; 23. Controller; 24. Limit plate; 25. Label plate. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0022] Example 1, as Figures 1-3 As shown, a construction foundation pit measurement device includes a support frame 1, a telescopic extension mechanism is provided on the top of the support frame 1, and a depth measurement structure is provided inside the telescopic extension mechanism.

[0023] Specifically, the telescopic extension mechanism includes a U-shaped frame 2 fixedly installed on the top of the support frame 1. Guide rails 3 are fixedly installed on the left and right sides of the inner wall of the U-shaped frame 2. A plate 4 located inside the U-shaped frame 2 is slidably installed on the outside of the two guide rails 3. A motor A5 is fixedly installed on the surface of the U-shaped frame 2. A lead screw 6, penetrating into the interior of the plate 4, is fixedly installed at the output end of the motor A5. The lead screw 6 is rotatably installed inside the front wall of the U-shaped frame 2 and threaded into the interior of the plate 4. A [unclear - possibly a device or mechanism] is fixedly installed on the back of the plate 4. The U-shaped frame 7 is located to the right of the first lead screw 6. The inner walls of the U-shaped frame 7 are fixedly installed with the second guide rails 8 on both the left and right sides. The second plate 9 is slidably installed on the outside of the two second guide rails 8. The depth measuring structure is set on the top of the second plate 9. The surface of the first plate 4 is fixedly installed with the motor B10. The output end of the motor B10 is fixedly installed with the second lead screw 11 that penetrates into the interior of the second plate 9. The second lead screw 11 is rotatably installed inside the first plate 4. The second lead screw 11 is threadedly installed inside the second plate 9. The second lead screw 11 is rotatably installed on the back of the inner wall of the U-shaped frame 7.

[0024] In use, the device is supported next to the pit by the support frame 1. The first plate 4 is restricted to slide inside the U-shaped frame 2 by two first guide rails 3, and the second plate 9 is restricted to inside the U-shaped frame 7 by two second guide rails 8. In use, the control motor A5 drives the first lead screw 6 to rotate forward inside the first plate 4, which forces the first plate 4 to move the U-shaped frame 7 backward. When the U-shaped frame 7 moves to the rearmost position, the control motor B10 drives the second lead screw 11 to rotate forward inside the second plate 9, which forces the second plate 9 and the depth measuring structure on the top of the second plate 9 to move to the right. At this time, the depth measuring structure is away from the inner wall of the pit. Then, the depth measuring structure can measure the depth of the pit. During the measurement, the suspension rope is away from the inner wall of the pit and cannot rub against the inner wall of the pit.

[0025] Example 2, as Figures 1-5 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:

[0026] The depth measurement structure includes two side brackets 12 fixedly installed on the top of the second plate 9. A motor C13 is fixedly installed on the right side of the right side bracket 12. A take-up reel 14 is fixedly installed at the output end of the motor C13. The take-up reel 14 is rotatably installed between the two side brackets 12. A soft rubber tape measure 15 is fixedly installed inside the take-up reel 14. A counterweight assembly is provided at the bottom of the soft rubber tape measure 15. A camera bracket 16 is fixedly installed on the back of the two side brackets 12. A camera 17 is fixedly installed inside the camera bracket 16. The shooting end of the camera 17 faces the take-up reel 14. A display screen 18 electrically connected to the camera 17 is fixedly installed on the surface of the U-shaped frame 2.

[0027] With this setup, the motor C13 drives the take-up reel 14 to rotate forward to unwind the soft rubber measuring tape 15, and drives the take-up reel 14 to rotate in reverse to rewind the soft rubber measuring tape 15. After the soft rubber measuring tape 15 is unwound, the counterweight component will pull the soft rubber measuring tape 15 to the bottom of the pit. At this time, the camera 17 will take a picture of the scale marked on the surface of the soft rubber measuring tape 15 and upload it to the display screen 18. Then, by observing the display screen 18, the depth of the pit can be determined.

[0028] Example 3, as Figures 1-5 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:

[0029] The counterweight assembly includes a metal cylinder 19 fixedly installed at the bottom of the soft rubber measuring tape 15. A bottom cover 20 is threaded onto the bottom of the metal cylinder 19. A pressure sensor 21 is fixedly installed at the bottom of the bottom cover 20. A battery 22 electrically connected to the pressure sensor 21 is installed inside the metal cylinder 19. A controller 23 located at the bottom of the motor C13 is fixedly installed on the right side of the right side bracket 12. The controller 23 is electrically connected to the pressure sensor 21, and the controller 23 is electrically connected to the motor C13.

[0030] With this setup, the installed counterweight component can increase the weight at the bottom of the soft rubber tape measure 15. The pressure sensor 21 is powered by the battery 22. When the counterweight component reaches the bottom of the pit, the pressure sensor 21 contacts the ground. At this time, the pressure sensor 21 is squeezed and transmits a signal to the controller 23. Upon receiving the signal, the controller 23 can control the motor C13 to stop running. At this time, the soft rubber tape measure 15 will no longer unwind.

[0031] Example 4, as Figures 1-3 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:

[0032] Two limiting plates 24 are fixedly installed on the back of the U-shaped frame 2. Two guide rails 3 are located in front of the two limiting plates 24 respectively. The lead screw 6 is rotatably installed on the surface of the left limiting plate 24.

[0033] This configuration restricts the movement of plate 4 by installing two limiting plates 24, preventing the interior of the U-shaped frame 2 from detaching.

[0034] Example 5, as Figures 1-3 As shown, this embodiment is a further improvement based on embodiment 2, and its specific details are as follows:

[0035] A label 25 is fixedly installed on the top of the frame 2 near its right side, which indicates the height of the support frame 1, the frame 2, the side support 12 and the counterweight assembly.

[0036] With this setup, the actual depth of the foundation pit is obtained by subtracting the height of the support frame 1, U-shaped frame 2, side support 12, and counterweight assembly after observing the height of the soft rubber measuring tape 15.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A construction foundation pit surveying device, comprising a support frame (1), characterized in that: The top of the support frame (1) is provided with a telescopic extension mechanism, and the inside of the telescopic extension mechanism is provided with a depth measuring structure; The telescopic extension mechanism includes a U-shaped frame (2) fixedly installed on the top of the support frame (1). A first guide rail (3) is fixedly installed on the left and right sides of the inner wall of the U-shaped frame (2). A first plate (4) located inside the U-shaped frame (2) is slidably installed on the outside of the two first guide rails (3). A motor A (5) is fixedly installed on the surface of the U-shaped frame (2). A first lead screw (6) penetrating into the first plate (4) is fixedly installed at the output end of the motor A (5). The first lead screw (6) is rotatably installed inside the front wall of the U-shaped frame (2). The first lead screw (6) is threaded into the inside of the first plate (4). A first lead screw located inside the first plate (4) is fixedly installed on the back of the first plate (4). The right side of the lever (6) is a slanted frame (7). The inner walls of the slanted frame (7) are fixedly installed with second guide rails (8) on both sides. The two second guide rails (8) are slidably installed with second plates (9). The depth measuring structure is set on the top of the second plate (9). The surface of the first plate (4) is fixedly installed with a motor B (10). The output end of the motor B (10) is fixedly installed with a second lead screw (11) that penetrates into the interior of the second plate (9). The second lead screw (11) is rotatably installed inside the first plate (4). The second lead screw (11) is threadedly installed inside the second plate (9). The second lead screw (11) is rotatably installed on the back of the inner wall of the slanted frame (7).

2. The construction surveying device for building foundation pits according to claim 1, characterized in that: The depth measurement structure includes two side brackets (12) fixedly installed on the top of the second plate (9). A motor C (13) is fixedly installed on the right side of the right side bracket (12). A take-up reel (14) is fixedly installed at the output end of the motor C (13). The take-up reel (14) is rotatably installed between the two side brackets (12). A soft rubber tape measure (15) is fixedly installed inside the take-up reel (14). A counterweight assembly is provided at the bottom of the soft rubber tape measure (15). A camera bracket (16) is fixedly installed on the back of the two side brackets (12). A camera (17) is fixedly installed inside the camera bracket (16). The shooting end of the camera (17) faces the take-up reel (14). A display screen (18) electrically connected to the camera (17) is fixedly installed on the surface of the U-shaped frame (2).

3. The construction surveying device for building foundation pits according to claim 2, characterized in that: The counterweight assembly includes a metal cylinder (19) fixedly installed at the bottom of a soft rubber measuring tape (15). A bottom cover (20) is threaded onto the bottom of the metal cylinder (19). A pressure sensor (21) is fixedly installed at the bottom of the bottom cover (20). A battery (22) electrically connected to the pressure sensor (21) is disposed inside the metal cylinder (19). A controller (23) located at the bottom of the motor C (13) is fixedly installed on the right side of the side bracket (12). The controller (23) is electrically connected to the pressure sensor (21), and the controller (23) is electrically connected to the motor C (13).

4. The construction surveying device for building foundation pits according to claim 1, characterized in that: Two limiting plates (24) are fixedly installed on the back of the U-shaped frame (2), and the two first guide rails (3) are respectively located in front of the two limiting plates (24). The first lead screw (6) is rotatably installed on the surface of the left limiting plate (24).

5. The construction surveying device for building foundation pits according to claim 2, characterized in that: The top of the slatted frame (2) is fixedly mounted with a label (25) near its right side, which indicates the height of the support frame (1), the slatted frame (2), the side support (12), and the counterweight assembly.

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