A municipal construction pit digging device

Abstract

This utility model discloses a municipal construction pit-digging device, including a fixed base, a push frame fixedly connected to one side of the fixed base, a folding device assembly fixedly connected to the top of the fixed base, and moving wheel assemblies fixed to both sides of the fixed base. To improve the device's mobility in different terrains, this utility model adds moving wheel assemblies to the pit-digging device. These assemblies employ a unique mechanical structure; when the wheels encounter complex terrain, the first and third bevel gears are movably connected to the second bevel gear, allowing for flexible adjustment of the height and angle of each wheel. Furthermore, the device has a folding function; when folded, the device's volume is significantly reduced, facilitating loading onto transport vehicles. This not only reduces transportation costs and improves transportation efficiency but also provides better protection for the device during transport. In the folded state, vulnerable parts of the device are stored inside, reducing the possibility of damage caused by collisions and friction.

Description

Technical Field

[0001] This utility model relates to the field of pit-digging equipment technology, specifically a pit-digging equipment for municipal construction. Background Technology

[0002] Municipal engineering refers to the construction of municipal infrastructure. Municipal infrastructure refers to various buildings, structures, and equipment set up within the urban area and town planning and construction scope to provide paid or free public products and services to residents based on the government's responsibility and obligation. The construction of various public infrastructure supporting urban life falls under the category of municipal engineering.

[0003] A search revealed that Chinese patent documents disclose a municipal construction pit-digging device (publication number: CN217841515U). This device consists of a device body, a hydraulic cylinder, a movable plate, a control mechanism, a fixing mechanism, and a drill rod. The hydraulic cylinder is fixed on both sides of the upper end of the upper frame, and the lower hydraulic rod passes through the upper frame body and is fixedly connected to the lower movable plate. The control mechanism is located at the center of the movable plate, and the fixing mechanism is symmetrically arranged on both sides of the lower frame. The control mechanism includes a first motor, a connecting plate, and fixing screws.

[0004] Existing municipal construction excavation equipment has certain advantages in drill rod maintenance and operational stability. When drill rods malfunction or become severely worn, the equipment facilitates disassembly, enabling quick replacement and improving work efficiency. Furthermore, the equipment is equipped with fixing devices to prevent displacement or swaying during use, effectively avoiding rework due to excavation deviations. However, this equipment still has shortcomings. Municipal construction conditions are complex, and work sites frequently change. The equipment struggles to adapt to diverse terrains, especially in mountainous areas with significant undulations, where it is prone to tilting. This can damage the equipment and lead to time-consuming and labor-intensive repairs, severely impacting work efficiency. Additionally, due to its large size and non-foldable design, the equipment's shape and dimensions are relatively fixed, requiring significant space for both temporary on-site storage and long-term warehouse storage. This affects the storage and handling of other construction materials and equipment, and also increases warehouse storage costs. Utility Model Content

[0005] The purpose of this utility model is to provide a municipal construction excavation device to solve the problems of drill rod maintenance and operational stability of existing municipal construction excavation devices mentioned in the background art. When the drill rod has problems or is severely worn, the device facilitates the disassembly of the drill rod, which helps to quickly replace it and improves work efficiency. At the same time, the device is equipped with a fixing device to prevent the main body from shifting or shaking during use, effectively avoiding rework caused by excavation deviation. However, this device still has shortcomings. Municipal construction conditions are complex, and the work site changes frequently. The device is difficult to adapt to diverse terrains, especially when working in mountainous areas with large undulations. The device is prone to tilting, which may not only damage the device but also lead to time-consuming and labor-intensive subsequent maintenance, seriously affecting work efficiency. At the same time, due to its large overall size and non-foldable nature, the shape and size of the device are relatively fixed. Whether temporarily stored on the construction site or stored in a warehouse for a long time, it requires a lot of space, affecting the storage and transportation of other construction materials and equipment, and also increasing warehouse storage costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a municipal construction pit-digging device, including a fixed base, a push frame fixedly connected to one side of the fixed base, a folding device assembly fixedly connected to the top of the fixed base, and moving wheel assemblies fixedly connected to both sides of the fixed base. A foldable device assembly is added to the top for protection without taking up space, and a moving wheel assembly is added to the bottom, which is adjusted by rotating an internal bevel gear to adapt to different terrains.

[0007] Preferably, the movable wheel assembly includes two first fixed posts arranged opposite to each other. A second bevel gear is rotatably connected between the two first fixed posts. A third bevel gear is movably connected to one side of the second bevel gear, and a first bevel gear is movably connected to the other side of the second bevel gear. This allows for flexible adjustment to adapt to the terrain. When facing undulating terrain such as mountains or hills, if one wheel encounters a protrusion or depression, the third bevel gear will be forced to rotate, causing the meshing second bevel gear to rotate. The second bevel gear then drives the first bevel gear on the other side to rotate, enabling the wheels at different positions to respond with different angles and heights according to the terrain. This keeps the center of gravity of the equipment stable at all times, thus adapting to various complex terrains.

[0008] Preferably, one end of the first bevel gear and the third bevel gear are rotatably connected to a connecting column, and one end of the first bevel gear and the third bevel gear are fixedly connected to a connecting rod through the connecting column. A wheel is rotatably connected to one side of the connecting rod, and the connecting rod can adjust the angle and height of the wheel, so that the equipment can maintain stability on rough ground and avoid tilting or shaking of the equipment due to the terrain, which greatly expands the operating range of the equipment.

[0009] Preferably, the folding device assembly includes two first sliding grooves, the bottom ends of which are fixedly connected to the surface of the fixed base. A reciprocating lead screw is rotatably connected to the inner cavity of each of the two first sliding grooves. A sliding post is threaded onto the surface of each of the two reciprocating lead screws. One end of one of the reciprocating lead screws is rotatably connected to a second rotating belt, one end of which is rotatably connected to the output end of a control motor. The other reciprocating lead screw is rotatably connected to a first rotating belt, one end of which is also rotatably connected to the output end of the control motor. The bottom end of the control motor is rotatably connected to the surface of the fixed base. The control motor, as the drive core, synchronously drives the two reciprocating lead screws to rotate via the first and second rotating belts after startup. When the lead screws rotate, the sliding posts threaded onto them move linearly along the first sliding grooves, significantly reducing the intensity and difficulty of manual operation, shortening equipment preparation time, and significantly improving construction efficiency. It also allows for rapid adjustment of the equipment status even when frequently changing work sites.

[0010] Preferably, the inner cavities of both first sliding grooves are rotatably connected to reciprocating screws, and the surfaces of both reciprocating screws are threaded with sliding posts. A fixed frame is rotatably connected between the tops of the two sliding posts. Adjusting rods are rotatably connected to both sides of the fixed frame, and a movable column is rotatably connected between the two adjusting rods. A first connecting rod is fixedly connected to one side of the fixed frame, and the first connecting rod is fixedly connected to the top and bottom of one side of the fixed frame, respectively. A fixed rod is fixedly connected between every two first connecting rods. A support frame is fixedly connected to the surface of the two fixed rods, and a telescopic air pump is fixedly connected to the surface of the support frame. The bottom of the telescopic air pump passes through the support frame and is fixedly connected to a spiral rotating hole. When the two reciprocating screws are driven to rotate, the sliding posts threaded with them will move up and down along the first sliding grooves, which allows the fixed frame to rise and fall accordingly, easily realizing the folding and unfolding operation of the equipment. When transporting or storing the equipment, the equipment volume can be greatly reduced, reducing space occupation. Whether loaded onto a transport vehicle or stored in a warehouse, more space can be freed up for other construction materials.

[0011] Preferably, a first support rod is fixedly connected to the middle of one side of the fixing frame, and a connecting plate is fixedly connected to one end of the two first support rods. One end of the connecting plate is fixedly connected to one side of the bottom of the fixing frame. A rotating hole is opened in the middle of the connecting plate. The strong vibration generated during drilling can be prevented by the connecting plate and the first support rod to ensure the stability of the fixing frame and ensure the drilling accuracy.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: To improve the mobility of the equipment in different terrains, we have added a moving wheel assembly to the digging equipment. This assembly adopts a unique mechanical structure. When the wheels encounter complex terrain, the first and third bevel gears are movably connected with the second bevel gear, which can flexibly adjust the height and angle of each wheel. This adjustment mechanism not only allows the equipment to adapt to different terrains and avoid tilting due to ground undulations, but also effectively protects the internal parts of the equipment in complex working environments and reduces the risk of damage to the parts. In addition, the equipment has a folding function. After folding, the size of the equipment is greatly reduced, making it easier to load onto transport vehicles and greatly reducing the space occupied during transportation. This not only reduces transportation costs and improves transportation efficiency, but also allows the equipment to be better protected during transportation. In the folded state, the vulnerable parts of the equipment are stored inside, reducing the possibility of damage caused by collisions and friction. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the construction pit excavation equipment of this utility model;

[0014] Figure 2 This is a schematic diagram of the moving wheel assembly structure of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the folding device component of this utility model;

[0016] Figure 4 This is a schematic diagram of the folding device component structure of this utility model.

[0017] In the diagram: 1. Fixed base; 2. Moving wheel assembly; 3. Folding device assembly; 4. Push frame; 5. Wheel; 6. Connecting rod; 7. Connecting column; 8. First bevel gear; 9. Second bevel gear; 10. Third bevel gear; 11. Connecting plate; 12. First support rod; 13. Telescopic air pump; 14. First connecting rod; 15. Reciprocating screw; 16. Fixed frame; 17. Fixed rod; 18. Adjusting rod; 19. Movable column; 20. Sliding pile; 21. First sliding groove; 22. Support frame; 23. Control motor; 24. First rotating belt; 25. Second rotating belt; 26. Spiral rotating hole; 27. Rotating hole; 28. First fixed pile. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Please see Figure 1-4This utility model provides a municipal construction pit digging device, including a fixed base 1, a push frame 4 fixedly connected to one side of the fixed base 1, a folding device assembly 3 fixedly connected to the top of the fixed base 1, and moving wheel assemblies 2 fixedly connected to both sides of the fixed base 1. When in use, the push frame 4 is pushed and moved through the moving wheel assemblies 2, and is adjusted according to several bevel gears inside. The folding device assembly 3 is added to the top fixed base 1 to facilitate storage during transportation and does not take up space.

[0020] In use, the movable wheel assembly 2 includes two first fixed posts 28, which are arranged opposite to each other. A second bevel gear 9 is rotatably connected between the two first fixed posts 28. A third bevel gear 10 is movably connected to one side of the second bevel gear 9, and a first bevel gear 8 is movably connected to the other side of the second bevel gear 9. A connecting post 7 is rotatably connected to one end of the first bevel gear 8 and the third bevel gear 10, and a connecting rod 6 is fixedly connected to one end of the first bevel gear 8 and the third bevel gear 10 through the connecting post 7. A wheel 5 is rotatably connected to one side of the connecting rod 6. When pushed in use, if the road surface is uneven, the wheel 5 at one end will move and adjust through the first bevel gear 8 and the third bevel gear 10 and the second bevel gear 9, thereby driving the connecting rod 6 and adjusting the wheels 5 at both ends of the connecting rod 6.

[0021] In use, the folding device assembly 3 includes two first sliding grooves 21, the bottom ends of which are fixedly connected to the surface of the fixed base 1. A reciprocating screw 15 is rotatably connected to the inner cavity of each of the two first sliding grooves 21. A sliding post 20 is threaded onto the surface of each of the two reciprocating screws 15. One end of one reciprocating screw 15 is rotatably connected to a second rotating belt 25, and one end of the second rotating belt 25 is rotatably connected to the output end of a control motor 23. One end of the other reciprocating screw 15 is rotatably connected to a first rotating belt 24, and one end of the first rotating belt 24 is also rotatably connected to the output end of the control motor 23. The bottom end of the control motor 23 is connected to the fixed base 1. The surfaces are rotatably connected, and the inner cavities of the two first sliding grooves 21 are rotatably connected to reciprocating screws 15. The surfaces of the two reciprocating screws 15 are threaded with sliding posts 20. The tops of the two sliding posts 20 are rotatably connected to a fixed frame 16. When in use, the control motor 23 is started first, which can drive the second rotating belt 25 in the same direction, and drive the first rotating belt 24 in the opposite direction in the other direction. At the same time, it can drive the internal reciprocating screws 15 to rotate. Because the surface of the reciprocating screws 15 is threaded, when they rotate, they will drive the internal sliding posts 20 to move through the threaded rotation of the surface. When unfolded, the adjusting rods 18 on both sides of the fixed frame 16 will rotate and unfold through the movable column 19.

[0022] In this embodiment of the application, the following are the features: Adjustable rods 18 are rotatably connected to both sides of the fixed frame 16, and a movable column 19 is rotatably connected between the two adjustable rods 18. A first connecting rod 14 is fixedly connected to one side of the fixed frame 16, and the first connecting rods 14 are respectively fixedly connected to the top and bottom ends of one side of the fixed frame 16. A fixed rod 17 is fixedly connected between every two first connecting rods 14. A support frame 22 is fixedly connected to the surface of the two fixed rods 17. A telescopic air pump 13 is fixedly connected to the surface of the support frame 22. A spiral rotating hole 26 is fixedly connected to the bottom of the telescopic air pump 13 through the support frame 22. A first support rod 12 is fixedly connected to the middle of one side of the fixed frame 16. A connecting plate 11 is fixedly connected to one end of the two first support rods 12. One end of the connecting plate 11 is fixedly connected to one side of the bottom of the fixed frame 16. A rotating hole 27 is opened in the middle of the connecting plate 11. When the frame is opened, the telescopic air pump 13 can be activated, and the spiral rotating hole 26 is brought into contact with the ground through the rotating hole 27.

[0023] In use, the pusher frame 4 is moved by pushing it. When encountering uneven terrain, the first bevel gear 8 and the third bevel gear 10 move through the second bevel gear 9. The connecting rods 6 on both sides drive the wheels 5 to rotate and adjust. When the first bevel gear 8 and the third bevel gear 10 encounter uneven terrain through the wheels 5, they can be adjusted internally. When the designated position is reached, the control motor 23 is started first, which can drive the second rotating belt 25 in the forward direction and the first rotating belt 24 in the reverse direction in the opposite direction. At the same time, the reciprocating screw 15 inside can be rotated. Since the surface of the reciprocating screw 15 is threaded, it will drive the sliding pile 20 inside when it rotates, and move through the threaded surface. When unfolded, the adjusting rods 18 on both sides of the fixed frame 16 will rotate and unfold through the movable column 19. When opened, the telescopic air pump 13 can be started to make the spiral rotating hole 26 contact the ground through the rotating hole 27. The dug pit can then be used by workers to plant trees.

[0024] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A municipal construction pit-digging device, comprising a fixed base (1), characterized in that: A pusher frame (4) is fixedly connected to one side of the fixed base (1), a folding device assembly (3) is fixedly connected to the top of the fixed base (1), and a moving wheel assembly (2) is fixed to both sides of the fixed base (1).

2. The municipal construction excavation equipment according to claim 1, characterized in that: The moving wheel assembly (2) includes two first fixed posts (28) arranged opposite to each other. A second bevel gear (9) is rotatably connected between the two first fixed posts (28). A third bevel gear (10) is movably connected to one side of the second bevel gear (9), and a first bevel gear (8) is movably connected to the other side of the second bevel gear (9).

3. The municipal construction excavation equipment according to claim 2, characterized in that: One end of the first bevel gear (8) and the third bevel gear (10) are rotatably connected to a connecting column (7), and one end of the first bevel gear (8) and the third bevel gear (10) are fixedly connected to a connecting rod (6) through the connecting column (7). A wheel (5) is rotatably connected to one side of the connecting rod (6).

4. The municipal construction pit-digging equipment according to claim 1, characterized in that: The folding device assembly (3) includes two first sliding grooves (21), and the bottom ends of the two first sliding grooves (21) are fixedly connected to the surface of the fixed base (1). The inner cavities of the two first sliding grooves (21) are rotatably connected to reciprocating screws (15). The surfaces of the two reciprocating screws (15) are threadedly connected to sliding posts (20). One end of one of the reciprocating screws (15) is rotatably connected to a second rotating belt (25). One end of the second rotating belt (25) is rotatably connected to the output end of a control motor (23). One end of the other reciprocating screw (15) is rotatably connected to a first rotating belt (24), and one end of the first rotating belt (24) is also rotatably connected to the output end of the control motor (23). The bottom end of the control motor (23) is rotatably connected to the surface of the fixed base (1).

5. A municipal construction pit-digging device according to claim 4, characterized in that: A fixed frame (16) is rotatably connected between the top ends of the two sliding piles (20). An adjusting rod (18) is rotatably connected to both sides of the fixed frame (16). A movable column (19) is rotatably connected between the two adjusting rods (18). A first connecting rod (14) is fixedly connected to one side of the fixed frame (16). The first connecting rod (14) is fixedly connected to the top and bottom ends of one side of the fixed frame (16). A fixed rod (17) is fixedly connected between every two first connecting rods (14). A support frame (22) is fixedly connected to the surface of the two fixed rods (17). A telescopic air pump (13) is fixedly connected to the surface of the support frame (22). A spiral rotating hole (26) is fixedly connected to the bottom of the telescopic air pump (13) through the support frame (22).

6. A municipal construction excavation device according to claim 5, characterized in that: Each of the two first support rods (12) is fixedly connected to the middle of one side of the fixed frame (16). A connecting plate (11) is fixedly connected to one end of each of the two first support rods (12). One end of the connecting plate (11) is fixedly connected to one side of the bottom of the fixed frame (16). A rotating hole (27) is opened in the middle of the connecting plate (11).

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