Device for plugging interior of dragging pipe
By combining a mobile vehicle that moves inside the tractor pipe with a pumping and grouting device, the risk of water gushing caused by water accumulation in the abandoned tractor pipe was solved, improving construction efficiency and grouting uniformity.
Patent Information
- Application Number
- CN202521921615.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2035-09-08
AI Technical Summary
Water accumulates inside the abandoned drag pipe, which may cause the cutter head to scratch the drag pipe during the construction of the shield machine or pipe jacking machine, resulting in the risk of gushing, affecting construction efficiency.
Design a device that includes a traveling vehicle, a water pumping pipe, and a grouting pipe. The traveling vehicle moves inside the towing pipe, the water pumping pipe pumps out the accumulated water, and the grouting pipe injects grout. The device is adjusted in position using guide wheels and push rods to ensure grouting efficiency.
Effectively drains water from inside the grouting pipe, preventing the cutter head from scratching the grouting pipe, improving construction efficiency, ensuring uniform grouting, and reducing the risk of gushing.
Smart Images
Figure CN223447980U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of underground construction, in particular to a device for plugging the inside of a drag-and-pull pipe. BACKGROUND
[0002] The drag-and-pull pipe (also known as a traction drag-and-pull pipe or a pull pipe) is a kind of trenchless construction technology, which drags the pipe into a pre-drilled hole by traction, and is suitable for laying underground pipelines across obstacles (such as roads, rivers, railways).
[0003] In the actual construction process, there is accumulated water inside the abandoned drag-and-pull pipe. When the abandoned drag-and-pull pipe is located around or even inside the tunneling area of a shield machine or a pipe-jacking machine, the cutter head of the shield machine or the pipe-jacking machine has the risk of tearing the drag-and-pull pipe and causing gushing, which affects the construction efficiency. UTILITY MODEL CONTENTS
[0004] The utility model aims at overcoming the deficiencies of the prior art, i.e., the accumulated water inside the abandoned drag-and-pull pipe, the risk of tearing the drag-and-pull pipe by the cutter head of the shield machine or the pipe-jacking machine during construction, and the impact on the construction efficiency, and provides a device for plugging the inside of a drag-and-pull pipe.
[0005] The utility model provides a device for plugging the inside of a drag-and-pull pipe, which comprises:
[0006] A walking vehicle is used to move inside the drag-and-pull pipe, the size of the walking vehicle is smaller than the inner diameter of the drag-and-pull pipe, and the walking vehicle is provided with walking wheels.
[0007] A water suction pipe is connected to the walking vehicle and is used to suck out the accumulated water inside the drag-and-pull pipe.
[0008] A grouting pipe is connected to the walking vehicle and is used to inject grout into the drag-and-pull pipe.
[0009] The walking vehicle is arranged to move inside the drag-and-pull pipe, and the walking vehicle is connected with the water suction pipe and the grouting pipe, so that not only the accumulated water inside the drag-and-pull pipe can be sucked out, but also grout can be injected into the inside of the drag-and-pull pipe, which can avoid the situation that the drag-and-pull pipe is torn by the cutter head during subsequent tunneling construction and causes gushing. In addition, the water suction pipe can judge whether the area where the walking vehicle is located has been grouted according to the sucked water, so as to adjust the position of the walking vehicle inside the drag-and-pull pipe, which is beneficial to improving the grouting efficiency.
[0010] Preferably, the walking vehicle is further provided with a guide wheel, which is arranged on the side of the walking vehicle opposite to the walking wheels, and the guide wheel and the walking wheels are used to walk on the inner wall of the drag-and-pull pipe.
[0011] The walking vehicle is provided with a guide wheel connected to the side of the walking vehicle opposite to the walking wheel, so as to avoid the contact between the walking vehicle and the inner wall of the pipe as much as possible, and avoid affecting the grouting and water pumping process.
[0012] Preferably, the walking wheel and the guide wheel are rubber components, and the distance between the walking wheel and the guide wheel is greater than the inner diameter of the pipe.
[0013] The distance between the walking wheel and the guide wheel is determined according to the actual situation. When the walking wheel and the guide wheel are arranged in the pipe, the rubber components are deformed to press the inner wall of the pipe as much as possible to avoid being separated from the inner wall of the pipe.
[0014] Preferably, the walking wheel and / or the guide wheel are connected to the walking vehicle through a suspension, and the distance between the walking wheel and the guide wheel is greater than the inner diameter of the pipe.
[0015] The distance between the walking wheel and the guide wheel is determined according to the actual situation. When the walking wheel and the guide wheel are arranged in the pipe, the rubber components are deformed to press the inner wall of the pipe as much as possible to avoid being separated from the inner wall of the pipe.
[0016] Preferably, the walking vehicle is further connected to a push rod, and the push rod is used to drive the walking vehicle to move in the pipe.
[0017] The length of the push rod is determined according to the actual situation.
[0018] Preferably, the push rod comprises a plurality of push rods, and adjacent two push rods are hingedly connected.
[0019] The adjacent two push rods are hingedly connected, which is suitable for the curved condition of the pipe.
[0020] Preferably, the push rod is provided with a scale.
[0021] The push rod is provided with a scale, which is convenient for determining whether the walking vehicle is in place.
[0022] Preferably, the water pumping pipe is connected to the bottom surface of the walking vehicle, and the grouting pipe is connected to the top surface of the walking vehicle.
[0023] The water pumping pipe is connected to the bottom surface of the walking vehicle, which is convenient for pumping the internal water; and the grouting pipe is arranged on the top surface of the walking vehicle, which avoids blocking the grouting pipe.
[0024] Preferably, the grouting pipe is provided with a rotating nozzle.
[0025] The grouting pipe is provided with a rotating nozzle, which is beneficial to improving the grouting efficiency.
[0026] Preferably, the water pumping pipe and the grouting pipe are detachably connected to the travelling vehicle.
[0027] The water pumping pipe and the grouting pipe are detachably connected, facilitating replacement.
[0028] Compared with the prior art, the device has the advantages that:
[0029] The device for plugging the inside of the drag pipe comprises a travelling vehicle, a water pumping pipe and a grouting pipe, the travelling vehicle is arranged to move inside the drag pipe, and the travelling vehicle is connected with the water pumping pipe and the grouting pipe, so that not only the accumulated water inside the drag pipe can be pumped out, but also grouting can be performed towards the inside of the drag pipe, thereby avoiding the situation that the drag pipe is scraped by the cutter head during subsequent tunneling construction, and the device is beneficial to improving the efficiency of grouting. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 FIG. 1 is a schematic view of a device for plugging the inside of a drag pipe according to the present application;
[0031] Figure 2 FIG. 2 is an enlarged view of part A in FIG. 1; Figure 1
[0032] Figure 3 FIG. 4 is a schematic view of a use environment of the device for plugging the inside of the drag pipe according to the present application.
[0033] FIG. 1 is a schematic view of a device for plugging the inside of a drag pipe according to the present application;
[0034] 1 - travelling vehicle, 11 - travelling wheel, 12 - guide wheel, 13 - suspension, 131 - telescopic rod, 132 - spring, 2 - water pumping pipe, 3 - grouting pipe, 31 - rotating nozzle, 4 - push rod, 5 - clamp, 6 - drag pipe. DETAILED DESCRIPTION
[0035] The present application will be further described in detail below in conjunction with specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter of the present application is limited to the following embodiments, and any technology realized based on the content of the present application belongs to the scope of the present application.
[0036] In the description of the embodiments of the present application, the terms of orientation or position relationship such as "upper", "lower", "left", "right", "center", "inner", "outer" and the like are expressed based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / device / apparatus of the present application is usually used. These terms of orientation or position relationship are only for the convenience of describing the present application or simplifying the description of the embodiments, and for the convenience of the technicians to quickly understand the scheme, and therefore cannot be understood as indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific position relationship, and therefore cannot be understood as limiting the present application.
[0037] In addition, the terms "horizontal", "vertical", "overhanging", "parallel" and the like do not mean that the corresponding device / component / element must be absolutely horizontal or vertical or overhanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simplified to understand that the corresponding device / component / element is arranged in the direction of "horizontal", "vertical", "overhanging", "parallel" and the like, and can have an error / deviation of ±10% relative to the corresponding direction, more preferably an error / deviation of ±8% or less, more preferably an error / deviation of ±6% or less, more preferably an error / deviation of ±5% or less, and more preferably an error / deviation of ±4% or less. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present application.
[0038] In addition, the terms "first", "second", "third" and the like in the description of the present application are only used to distinguish the same or similar components, and should not be understood as emphasizing or implying the relative importance of the specific components.
[0039] In addition, in the description of the embodiments of the present application, "several", "a plurality of", "several" represent at least 2. It can be 2, 3, 4, 5, 6, 7, 8, 9, etc. in any case, and even more than 9.
[0040] In addition, in the description of the technical scheme of the present application, unless otherwise specified / limited / limited, the terms "set", "install", "connect", "connect", "set", "lay", "arrange" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, which can be welding, riveting, bolting, screwing and other commonly used connection means in the art. The connection can be mechanical connection, electrical connection or communication connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements.
[0041] Embodiment 1
[0042] As shown in the drawings, a device for plugging the inside of a drag pipe comprises: Figures 1 to 3 A walking vehicle 1 is used to move inside the drag pipe 6, the size of the walking vehicle 1 is smaller than the inner diameter of the drag pipe 6, and the walking vehicle 1 is provided with walking wheels 11;
[0043] A water pumping pipe 2 is connected to the walking vehicle 1, and the water pumping pipe 2 is used to pump out the accumulated water in the drag pipe 6;
[0044] A grouting pipe 3 is connected to the walking vehicle 1, and the grouting pipe 3 is used to inject grout into the drag pipe 6.
[0045] The walking vehicle 1 is arranged to move inside the drag pipe 6, and the walking vehicle 1 is connected with the water pumping pipe 2 and the grouting pipe 3, so that not only the accumulated water inside the drag pipe 6 can be pumped out, but also grout can be injected into the inside of the drag pipe 6, so as to avoid the situation that the drag pipe 6 is scraped by the cutting head during subsequent tunneling construction. In addition, the water pumping pipe 2 can determine whether the area where the walking vehicle 1 is located has been grouted according to the pumped water, so as to adjust the position of the walking vehicle 1 inside the drag pipe 6, thereby improving the efficiency of grouting.
[0046] Further, the walking vehicle 1 is further provided with a guide wheel 12, the guide wheel 12 is arranged on the side of the walking vehicle 1 away from the walking wheels 11, and the guide wheel 12 and the walking wheels 11 are both used to walk on the inner wall of the drag pipe 6. The walking vehicle 1 is provided with the guide wheel 12, and the guide wheel 12 is connected to the side of the walking vehicle 1 away from the walking wheels 11, so as to avoid the contact between the walking vehicle 1 and the inner wall of the drag pipe 6 as much as possible, thereby avoiding affecting the process of injecting grout and pumping water into the inside of the drag pipe 6. In this embodiment, foam concrete is used for grouting, and the density of the foam concrete is smaller than that of water, so the foam concrete will float on the surface of the water. Therefore, the water pumping pipe 2 is connected to the bottom surface of the walking vehicle 1, and the grouting pipe 3 is connected to the top surface of the walking vehicle 1. The water pumping pipe 2 is connected to the bottom surface of the walking vehicle 1, so as to facilitate pumping out the internal accumulated water; the grouting pipe 3 is arranged on the top surface of the walking vehicle 1, so as to avoid blocking the grouting pipe 3. When the water pumped out by the water pumping pipe 2 contains mud, it is determined that the position where the walking vehicle 1 is located has completed the grouting after pumping out the accumulated water, and then the walking vehicle 1 is moved upward to perform grouting. The distance of upward movement is determined according to the actual situation.
[0047]
[0048] Furthermore, the running wheels 11 and the guide wheels 12 are both rubber components, and the distance between the running wheels 11 and the guide wheels 12 is greater than the inner diameter of the drag tube 6. The spacing between the running wheels 11 and the guide wheels 12 is determined based on actual conditions. Since the spacing between the running wheels 11 and the guide wheels 12 is greater than the inner diameter of the drag tube 6, and both the running wheels 11 and the guide wheels 12 are rubber components, when the running wheels 11 and the guide wheels 12 are positioned within the drag tube 6, the rubber components deform, pressing against the inner wall of the drag tube 6 and minimizing detachment from the inner wall of the drag tube 6.
[0049] As an alternative, the running wheel 11 and / or the guide wheel 12 can also be connected to the suspension 13 ( Figure 3 The guide wheel 12 is connected to the traveling vehicle 1, and the distance between the traveling wheel 11 and the guide wheel 12 is greater than the inner diameter of the dragging tube 6. The spacing between the traveling wheel 11 and the guide wheel 12 is determined according to the actual situation. At least one of the guide wheel 12 or the traveling wheel 11 is connected to the traveling vehicle 1 through the suspension 13. When the traveling wheel 11 and the guide wheel 12 are set inside the dragging tube 6, they can press the inner wall of the dragging tube 6 and avoid separation from the inner wall of the dragging tube 6 as much as possible. In this embodiment, Figure 2 As shown, the suspension 13 includes a telescopic rod 131 and a spring 132. The spring 132 is mounted on the telescopic rod 131. The ends of the telescopic rod 131 can be fixedly connected to the trolley 1 and the running wheel 11, or can be hinged to the trolley 1 and the running wheel 11, without limitation in this application. The ends of the spring 132 are respectively connected to the trolley 1 and the running wheel 11. When the running wheel 11 and the guide wheel 12 enter the interior of the towing tube 6, the spring 132 is compressed, and the telescopic rod 131 is also shortened.
[0050] Furthermore, the travel vehicle 1 is further connected to a push rod 4, which is used to drive the travel vehicle 1 to move inside the drag tube 6. Furthermore, the push rod 4 includes a plurality of push rods 4, and two adjacent push rods 4 are hingedly connected to adapt to the bending of the drag tube. In this embodiment, the push rod 4 is provided with a scale ( Figure 3 (not shown) to facilitate determining whether the traveling vehicle 1 is in place.
[0051] Furthermore, the grouting pipe 3 is provided with a rotating nozzle 31, which is beneficial to improving the grouting efficiency.
[0052] Furthermore, the water pumping pipe 2 and the grouting pipe 3 are both detachably connected to the traveling vehicle 1. In this embodiment, the water pumping pipe 2 and the grouting pipe 3 are both connected to the traveling vehicle 1 via a clamp 5, which is convenient for subsequent replacement.
[0053] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A device for sealing the interior of a drag tube, characterized in that: include: A traveling vehicle (1), the traveling vehicle (1) is used to move inside the dragging tube (6), the size of the traveling vehicle (1) is smaller than the inner diameter of the dragging tube (6), and the traveling vehicle (1) is provided with traveling wheels (11); A water pumping pipe (2), the water pumping pipe (2) being connected to the traveling vehicle (1), and the water pumping pipe (2) being used to pump out the accumulated water in the dragging pipe (6); A grouting pipe (3), the grouting pipe (3) is connected to the traveling vehicle (1), and the grouting pipe (3) is used for grouting into the dragging pipe (6).
2. The device for sealing the interior of a drag pipe according to claim 1, characterized in that: The traveling vehicle (1) is further provided with a guide wheel (12), and the guide wheel (12) is provided on a side of the traveling vehicle (1) facing away from the traveling wheel (11), and both the guide wheel (12) and the traveling wheel (11) are used for traveling on the inner wall of the dragging tube (6).
3. The device for sealing the interior of a drag pipe according to claim 2, characterized in that: The walking wheel (11) and the guide wheel (12) are both rubber components, and the distance between the walking wheel (11) and the guide wheel (12) is greater than the inner diameter of the dragging tube (6).
4. The device for sealing the interior of a drag pipe according to claim 2, characterized in that: The traveling wheel (11) and / or the guide wheel (12) are connected to the traveling vehicle (1) via a suspension (13), and the distance between the traveling wheel (11) and the guide wheel (12) is greater than the inner diameter of the towing tube (6).
5. The device for sealing the interior of a drag pipe according to claim 1, characterized in that: The traveling vehicle (1) is also connected to a push rod (4), and the push rod (4) is used to drive the traveling vehicle (1) to move inside the dragging tube (6).
6. The device for sealing the interior of a drag pipe according to claim 5, characterized in that: The push rods (4) include a plurality of push rods, and two adjacent push rods (4) are hingedly connected.
7. The device for sealing the interior of a drag pipe according to claim 5, characterized in that: The push rod (4) is provided with a scale.
8. A device for sealing the interior of a drag pipe according to any one of claims 1 to 7, characterized in that: The water pumping pipe (2) is connected to the bottom surface of the traveling vehicle (1), and the grouting pipe (3) is connected to the top surface of the traveling vehicle (1).
9. A device for sealing the interior of a drag pipe according to any one of claims 1 to 7, characterized in that: The grouting pipe (3) is provided with a rotating nozzle (31).
10. A device for sealing the interior of a drag pipe according to any one of claims 1 to 7, characterized in that: The water pumping pipe (2) and the grouting pipe (3) can both be detachably connected to the traveling vehicle (1).