A device for improving the punching efficiency of a circular pipe culvert

Abstract

The utility model provides a kind of device for promoting the efficiency of circular pipe culvert punching, including support system, working system, walking system, rotating center;Rotating center is relatively fixed with the position of walking system, walking system carries support system and working system and moves in circular pipe culvert;Working system includes telescopic working arm and auxiliary positioning mechanism, one end of working arm is connected with rotating center swing angle adjustable, water drill punching machinery is installed in the other end of working arm, and working arm is fixed in the plane perpendicular to the axial direction of circular pipe culvert by the adjustable fixing of auxiliary positioning mechanism circumferentially;Support system includes telescopic support arm and two fixed plates located at the both ends of support arm, and the fixed plate is tightly clamped in the inner wall of circular pipe culvert by vertically arranged support arm, so as to fix support system and working system in circular pipe culvert;By the telescoping of support arm, rotating center is aligned with the center of circular pipe culvert.The utility model is simple in structure, convenient to operate, easy to move, and belongs to circular pipe culvert punching technology.

Description

Technical Field

[0001] This utility model relates to the construction technology of drilling holes in circular culverts, specifically to a device for improving the efficiency of drilling holes in circular culverts. Background Technology

[0002] With the advancement of global urbanization, urban population density is increasing, and land resources are becoming increasingly scarce. Modern cities rely on various pipelines such as electricity, communications, water supply and drainage, and gas. Traditional laying methods lead to frequent road excavation, affecting traffic and daily life. Traditional overhead or direct burial methods are no longer sufficient to meet the demands. Urban expansion and renovation require a more efficient and intensive infrastructure layout. Integrated utility tunnels have become an important means of optimizing urban space. Through centralized laying, repeated excavation is reduced, improving the safety and efficiency of pipeline management, enhancing the city's disaster resilience, and ensuring the safe operation of pipelines during disasters.

[0003] Integrated utility tunnels are constructed using various methods, including open-cut, cut-and-cover, and pipe jacking. The structures also include rectangular, circular, and irregular shapes. Drilling is relatively easy for rectangular structures, but circular and irregular shapes present significant challenges, primarily: 1. Circular structures are curved, making it difficult to control the drilling angle, which can lead to hole deviation, resulting in bolt misalignment and weakened tightening force; 2. Drilling curved structures is inefficient and time-consuming; 3. Traditional drilling equipment requires manual operation, making the final hole quality highly dependent on worker skill and incurring high labor costs. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the purpose of this utility model is to provide a device for improving the drilling efficiency of circular culverts, which is used to improve the drilling efficiency of circular culvert structures.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for improving the drilling efficiency of circular culverts includes a support system, a working system, a traveling system, and a rotation center. The rotation center is relatively fixed in position to the traveling system, which carries the support system and the working system and moves within the circular culvert. The working system includes a telescopic working arm and an auxiliary positioning mechanism. One end of the working arm is adjustablely connected to the rotation center, and the other end of the working arm is equipped with a water drill. The working arm is fixed in a plane perpendicular to the axial direction of the circular culvert by the auxiliary positioning mechanism, with its circumferential position adjustable. The support system includes a telescopic support arm and two fixed plates located at both ends of the support arm. The vertically positioned support arm presses the two fixed plates against the inner wall of the circular culvert, thereby fixing the support system and the working system within the circular culvert. Through the extension and retraction of the support arm, the rotation center is aligned with the center of the circular culvert.

[0007] As a preferred embodiment, the walking system includes a frame and casters, with the casters located below the frame.

[0008] As a preferred option, the frame is a rectangular frame structure, and all four casters are equipped with locking mechanisms.

[0009] As a preferred embodiment, the telescopic support arm in the support system includes a fixed support arm and two movable support arms connected to both ends of the fixed support arm. The fixed support arm is fixed to the frame. The two fixing plates are an upper fixing plate and a lower fixing plate. The upper fixing plate is an arc-shaped fixing plate corresponding to the shape of the inner wall of the circular culvert, and the lower fixing plate is a flat fixing plate.

[0010] As a preferred embodiment, the fixed plate and the movable support arm are fixed together by welding; during operation, the movable support arm extends from the fixed support arm, the fixed plate presses against the inner wall of the circular culvert, thereby fixing the entire device and raising the walking system; during movement, the movable support arm retracts into the fixed support arm, and the walking system lowers to move.

[0011] As a preferred embodiment, the auxiliary positioning mechanism in the working system includes an adjusting disc, a pulley block, and a steel wire rope. The adjusting disc is a semi-circular disc with its diameter oriented vertically. The adjusting disc has a semi-circular adjustment groove, and the rotation center is located on the adjusting disc. The adjusting disc is fixed to the fixed support arm. One end of the working arm is fixed to the rotation center by a locking screw, and the middle part of the working arm is fixed in the adjustment groove in an adjustable position by a limit screw. The working arm is equipped with a lock, and one end of the steel wire rope is tied to the lock. The steel wire rope is wound around the pulley block, and the position of the auxiliary working arm is adjusted by pulling it from above.

[0012] As a preferred embodiment, the pulley block includes an upper pulley and a lower pulley; the lower pulley is mounted on the frame and drives the winding and unwinding of the wire rope, and the lower pulley is set below the adjustment plate; the upper pulley is a fixed pulley, mounted on a fixed support arm, and the upper pulley is set above the adjustment plate.

[0013] As a preferred option, a device for improving the drilling efficiency of circular culverts also includes a water bucket, a water drill connected to a drain pipe, and the drain pipe extending into the water bucket.

[0014] As a preferred embodiment, the inner wall of the circular culvert has a circular cross-section, the lower end of the inner wall is horizontal, and a drainage ditch is set in the middle of the horizontal plane.

[0015] As a preferred option, the frame, fixed support arm, and movable support arm are all made of structural steel, the adjustment plate is made of steel plate, and the working arm is made of square steel.

[0016] The principle of this utility model is:

[0017] The device's movement and position adjustment are achieved through a walking system, including left-right and axial position adjustment. The linkage between the retractable support arm and the walking system allows the device to easily switch between mobile and stationary states.

[0018] The support system ensures reliable fixation of the device, guaranteeing the operation of the water drilling machine. The linkage between the working system and the support system allows for adjustable fixation of the working arm's circumferential position. Directly adjusting the circumferential position of the working arm allows for adjustment of the drilling position relative to the inner wall of the pipe, facilitating easy switching between drilling positions within a single circle.

[0019] The working system enables the water drilling machine to switch directly between drilling positions in one circle. When switching, only the fixed angle of the working arm needs to be changed, without the need for frequent spatial alignment of the device.

[0020] This utility model has the following advantages:

[0021] 1. Simple structure, easy to operate, and easy to move.

[0022] 2. Drilling is carried out by extending the working arm from the center of the circular culvert. The length of the support arm and the working arm are adjusted according to the diameter of the circular culvert, which can be used for circular culverts of different diameters.

[0023] 3. The fixed end of the working arm is located at the center of rotation. Drilling is carried out from this center position, which ensures that the holes are perpendicular to the cross-section without any skew, thus guaranteeing the drilling quality.

[0024] 4. The angle can be adjusted according to the adjustment disc, and holes can be drilled within the cross-section of the culvert.

[0025] 5. The use of semi-mechanized construction improves the construction efficiency of drilling holes in circular culverts, and the hole quality is good, no longer relying on the construction skills of workers.

[0026] 6. An auxiliary positioning mechanism is adopted, which adjusts the position of the auxiliary working arm by pulling it from above with a steel wire rope. It is easy to operate and safe and reliable. Attached Figure Description

[0027] Figure 1 This is a front view of a device for improving the drilling efficiency of circular culverts.

[0028] Figure 2 This is a side view of a device for improving the drilling efficiency of circular culverts.

[0029] Figure 3 This is a schematic diagram of a water-drilling machine.

[0030] Figure 4 This is a diagram illustrating the working state of a device that improves the drilling efficiency of circular culverts.

[0031] In the diagram, 1-upper fixed plate, 2-upper movable support arm, 3-fixed support arm, 4-wire rope, 5-working arm, 6-pulley, 7-limit screw, 8-adjusting plate, 9-frame, 10-moving caster, 11-lower movable support arm, 12-lower fixed plate, 13-water drilling machine, 14-water bucket, 15-circular culvert, 16-culvert drainage ditch. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to specific embodiments.

[0033] A device for improving the drilling efficiency of circular culverts includes a support system, a working system, a traveling system, and a rotation center. The rotation center is relatively fixed in position to the traveling system, which carries the support system and the working system and moves within the circular culvert. The working system includes a telescopic working arm and an auxiliary positioning mechanism. One end of the working arm is adjustablely connected to the rotation center, and the other end of the working arm is equipped with a water drill. The working arm is fixed in a plane perpendicular to the axial direction of the circular culvert by the auxiliary positioning mechanism, with its circumferential position adjustable. The support system includes a telescopic support arm and two fixed plates located at both ends of the support arm. The vertically positioned support arm presses the two fixed plates against the inner wall of the circular culvert, thereby fixing the support system and the working system within the circular culvert. Through the extension and retraction of the support arm, the rotation center is aligned with the center of the circular culvert.

[0034] The walking system includes a frame and casters, with the casters located under the frame.

[0035] The frame is a rectangular frame structure, and all four casters are equipped with locking mechanisms.

[0036] In the support system, the telescopic support arm includes a fixed support arm and two movable support arms connected to both ends of the fixed support arm. The fixed support arm is fixed on the frame. The two fixing plates are an upper fixing plate and a lower fixing plate. The upper fixing plate is an arc-shaped fixing plate corresponding to the shape of the inner wall of the circular culvert, and the lower fixing plate is a flat fixing plate.

[0037] The fixed plate and the movable support arm are fixed together by welding. During operation, the movable support arm extends from the fixed support arm, and the fixed plate presses against the inner wall of the circular culvert, thereby fixing the entire device and raising the walking system. During movement, the movable support arm retracts into the fixed support arm, and the walking system lowers to move.

[0038] In the working system, the auxiliary positioning mechanism includes an adjusting disc, a pulley block, and a steel wire rope. The adjusting disc is a semi-circular disc with its diameter facing vertically. The adjusting disc has a semi-circular adjustment groove, and the rotation center is set on the adjusting disc. The adjusting disc is fixed to the fixed support arm. One end of the working arm is fixed to the rotation center by a locking screw, and the middle part of the working arm is fixed in the adjustment groove in an adjustable position by a limit screw. The working arm is equipped with a lock, and one end of the steel wire rope is tied to the lock. The steel wire rope is wound around the pulley block, and the position of the auxiliary working arm is adjusted by pulling it from above.

[0039] The pulley block includes an upper pulley and a lower pulley; the lower pulley is mounted on the frame and drives the winding and unwinding of the wire rope, and the lower pulley is set below the adjustment plate; the upper pulley is a fixed pulley, mounted on a fixed support arm, and the upper pulley is set above the adjustment plate.

[0040] A device for improving the drilling efficiency of circular culverts also includes a bucket, a water drill connected to a drain pipe, and the drain pipe extending into the bucket.

[0041] The inner wall of the circular culvert has a circular cross-section, with the lower end of the inner wall being a horizontal plane. A drainage ditch for the culvert is set in the middle of the horizontal plane.

[0042] The frame, fixed support arm, and movable support arm are all made of structural steel, the adjustment plate is made of steel plate, and the working arm is made of square steel.

[0043] In this embodiment of the working system, the working arm is used to install the water drill, the adjustment disc is used to lock and guide the working arm's position, the pulley block and wire rope are used to assist in adjusting the angle of the working arm, the locking screw is used for adjustable swing angle fixation, and the limit screw is used for adjustable circumferential position fixation. By adjusting the swing angle of the working arm through the adjustment disc, the drilling angle can be determined.

[0044] In this embodiment of the support system, the curvature of the upper fixed plate is determined according to the diameter of the culvert on site. The center position of the device can be adjusted, i.e., the rotation center, by means of two movable support arms.

[0045] In this embodiment of the walking system, the frame is used to stabilize the entire device, and the casters are swivel casters used to adjust the position of the device and are locked in the working state by a locking mechanism to prevent movement.

[0046] In this embodiment, the frame, fixed support arm, and movable support arm are all made of structural steel, while the adjustment plate is made of steel plate. The structural steel of the frame is welded together, and the fixed support arm and the crossbar in the center of the frame are also welded together. The fixed and movable support arms are positioned by bolts after extension and retraction adjustment. The working arm is made of square steel, with one end fixed and connected to the fixed support arm and adjustment plate by locking screws, and the other end movable and fixed in the adjustment groove by limit screws. The water drill lifting frame of the water drill is inserted into and fixed to the working arm. The casters are connected to the frame by bolts or welding.

[0047] In this embodiment, the inner diameter of the circular culvert is 2m, and the device is suitable for working environments with circular tunnel structures of 1.7m-2.3m. The fixed support arm is 1.5m high, and the movable support arm is 0.6m long, used for drilling for equipment installation. The adjustment disc can achieve an angle adjustment of 15°-165° on one side, meaning that drilling can be carried out at all angles of the culvert except for 30° directly above and below it (both sides).

[0048] The operation method is as follows:

[0049] 1) Adjust the length of the support arm according to the diameter of the circular culvert to ensure that the fixed end of the working arm is at the center of the circular culvert. First, adjust the upper and lower movable support arms. The position of the lower fixed plate should be below the caster. After the fixed end of the working arm is at the center of the circular culvert, fix the upper and lower movable support arms and tighten them with bolts to complete the fixing of the support arms.

[0050] 2) Determine the positions of the fixing bolts for the bracket to be installed, and then adjust the angle of the working arm by pulling the wire rope with pulleys. After determining the angle of the working arm, fix the limit screws. The working angle adjustment is now complete.

[0051] 3) After the working angle is adjusted, start test drilling. If there are no problems with the test drilling, start formal drilling to form a hole. After the hole is formed, retract the working arm and pre-embed the bolts.

[0052] 4) After the working arm retracts, the limit of the lower movable support arm is released and it retracts, but the limit of the upper movable support arm and the working arm is not released.

[0053] 5) After moving to the next drilling position via the walking system, directly adjust the movable support arm. After adjustment, tighten the bolts to fix the support arm. Then, conduct trial drilling and drilling operations.

[0054] A drilling method for a device to improve the drilling efficiency of circular culverts includes the following steps:

[0055] (1) Move the device to the section of the circular culvert to be drilled by the walking system, fix the device in the center of the circular culvert by the support system, fix the water drill in the drilling position by the working system to drill, and after drilling, change the circumferential position of the water drill by the working system to continue drilling.

[0056] (2) After completing the drilling on one side, adjust the left and right orientation of the device and continue to complete the drilling on the other side;

[0057] (3) After the drilling of one section is completed, adjust the axial position of the device and repeat steps (1) and (2) to continue drilling the other section until the drilling of the circular culvert is completed.

[0058] In step (1), when the walking system is walking, the support arm retracts to a position that does not affect the walking system; when the support system is fixed, the support arm extends and the walking system is raised; when the circumferential position is switched, the rotation center coincides with the center of the circular culvert, and the length direction of the working arm is set along the radius direction of the circular culvert.

[0059] This device is suitable for standardized production and can be reused. It is used for drilling holes in circular tunnel structures, serving as an operating device to improve the efficiency of drilling in circular tunnels. It is applicable to circular culverts with diameters ranging from 1.6 to 2.4 meters. The device's position, dimensions, and drilling angle are all adjustable to accommodate drilling at different angles within the culvert, achieving safe, fast, and efficient drilling within the culvert. This device is easy to install and disassemble, portable, and reusable. It is energy-saving, environmentally friendly, and comes with standardized components, significantly improving work efficiency and safety.

[0060] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A device for improving the drilling efficiency of circular culverts, characterized in that: Includes support system, working system, walking system, and rotation center; The rotation center and the position of the walking system are relatively fixed, and the walking system, equipped with the support system and the working system, moves inside the circular culvert. The working system includes a telescopic working arm and an auxiliary positioning mechanism. One end of the working arm is connected to the rotation center with an adjustable swing angle, and the other end of the working arm is equipped with a water drill. The working arm is fixed in a plane perpendicular to the axis of the circular culvert through the auxiliary positioning mechanism with an adjustable circumferential position. The support system includes a telescopic support arm and two fixed plates located at both ends of the support arm. The vertically arranged support arm presses the two fixed plates against the inner wall of the circular culvert, thereby fixing the support system and the working system inside the circular culvert. Through the extension and retraction of the support arm, the rotation center is aligned with the center of the circular culvert. The two fixing plates are the upper fixing plate and the lower fixing plate. The upper fixing plate is an arc-shaped fixing plate that corresponds to the shape of the inner wall of the circular culvert, and the lower fixing plate is a flat fixing plate.

2. The device for improving the drilling efficiency of circular culverts according to claim 1, characterized in that: The walking system includes a frame and casters, with the casters located under the frame.

3. The device for improving the drilling efficiency of circular culverts according to claim 2, characterized in that: The frame is a rectangular frame structure, and all four casters are equipped with locking mechanisms.

4. The device for improving the drilling efficiency of circular culverts according to claim 2, characterized in that: In the support system, the telescopic support arm includes a fixed support arm and two movable support arms connected to both ends of the fixed support arm. The fixed support arm is fixed to the frame.

5. The device for improving the drilling efficiency of circular culverts according to claim 4, characterized in that: The fixed plate and the movable support arm are fixed together by welding; during operation, the movable support arm extends from the fixed support arm, and the fixed plate presses against the inner wall of the circular culvert, thereby fixing the entire device and lifting the walking system. During movement, the movable support arm retracts into the fixed support arm, and the walking system lowers to move.

6. The device for improving the drilling efficiency of circular culverts according to claim 4, characterized in that: In the working system, the auxiliary positioning mechanism includes an adjusting disc, a pulley block, and a steel wire rope. The adjusting disc is a semi-circular disc with its diameter facing vertically. The adjusting disc has a semi-circular adjustment groove, and the rotation center is set on the adjusting disc. The adjusting disc is fixed to the fixed support arm. One end of the working arm is fixed to the rotation center by a locking screw, and the middle part of the working arm is fixed in the adjustment groove in an adjustable position by a limit screw. The working arm is equipped with a lock, and one end of the steel wire rope is tied to the lock. The steel wire rope is wound around the pulley block, and the position of the auxiliary working arm is adjusted by pulling it from above.

7. The device for improving the drilling efficiency of circular culverts according to claim 6, characterized in that: The pulley block includes an upper pulley and a lower pulley; the lower pulley is mounted on the frame and drives the winding and unwinding of the wire rope, and the lower pulley is set below the adjustment plate; the upper pulley is a fixed pulley, mounted on a fixed support arm, and the upper pulley is set above the adjustment plate.

8. The device for improving the drilling efficiency of circular culverts according to claim 1, characterized in that: It also includes a bucket, a water drill, a hole-drilling machine connected to a drain pipe, and the drain pipe extends into the bucket.

9. The device for improving the drilling efficiency of circular culverts according to claim 1, characterized in that: The inner wall of the circular culvert has a circular cross-section, with the lower end of the inner wall being a horizontal plane. A drainage ditch for the culvert is set in the middle of the horizontal plane.

10. The device for improving the drilling efficiency of circular culverts according to claim 6, characterized in that: The frame, fixed support arm, and movable support arm are all made of structural steel, the adjustment plate is made of steel plate, and the working arm is made of square steel.

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