A pipe pushing device

Abstract

The utility model discloses a pipeline pushing device, including first push roller, second push roller and drive assembly, first push roller and second push roller interval arrangement, first push roller and second push roller between having the clamping cavity that can hold grouting pipe, drive assembly and first push roller, second push roller transmission link to drive first push roller, second push roller reverse rotation. The utility model is applied to the field of tunnel construction, and through first push roller, second push roller enclose the clamping cavity that can hold grouting pipe, and through drive assembly drive first push roller, second push roller reverse rotation to drive grouting pipe and carry out uniform speed pipe, and then effectively avoided the empty, not full phenomenon when manual operation.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically a pipeline pushing device. Background Technology

[0002] Currently, anchor bolt support has become an indispensable procedure in tunnel construction. Among these, mortar anchor bolts are the most common construction method. This involves injecting cement mortar into the anchor bolt hole, inserting the anchor bolt into the hole, and then fixing the anchor bolt in place after the cement mortar has solidified. Therefore, the fullness of the mortar during injection is one of the important indicators affecting the quality of the anchor bolt.

[0003] Current grouting methods typically rely on manual insertion of the grouting pipe into the bottom of the anchor bolt hole, followed by pumping mortar into the hole using a grouting machine. Workers then slowly withdraw the grouting pipe, achieving simultaneous grouting and pipe extraction. The grouting process is considered complete once the pipe is fully extracted. However, because anchor bolt holes in tunnels have diverse angles, distributed from horizontal to vertical, workers are affected by external factors such as gravity and hole wall friction during pipe extraction, leading to uneven extraction speeds. If the extraction speed is too fast, the grouting rate is lower than the extraction speed, easily resulting in incomplete grouting and voids. Conversely, if the extraction speed is too slow, the grouting rate is higher than the extraction speed, easily leading to excessively high grouting pressure, increasing the risk of pipe blockage and reducing construction efficiency. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a pipeline pushing device that can drive the grouting pipe to retract at a uniform speed, thereby effectively ensuring that no voids appear in the same grouting hole and that the grout compaction degree at different positions of the grouting hole remains consistent.

[0005] To achieve the above objectives, this utility model provides a pipeline pushing device, including a first push roller, a second push roller and a driving assembly, wherein the first push roller and the second push roller are arranged at intervals.

[0006] The first pusher roller and the second pusher roller have a clamping cavity that can clamp the grouting pipe. The driving assembly is connected to the first pusher roller and the second pusher roller to drive the first pusher roller and the second pusher roller to rotate in opposite directions.

[0007] In one embodiment, the pipeline pushing device further includes a housing, a first base frame, a second base frame, a first spring, and a second spring;

[0008] The first push roller is rotatably connected to the first end of the first base frame, the second push roller is rotatably connected to the first end of the second base frame, and the first base frame and the second base frame are slidably connected to the housing.

[0009] The first spring is connected between the second end of the first base frame and the housing, and the second spring is connected between the second end of the second base frame and the housing.

[0010] In one embodiment, the first push roller is rotatably connected to the first base frame via a bearing, and the second push roller is rotatably connected to the second base frame via a bearing.

[0011] In one embodiment, the housing is provided with a slide rail, and the bottom of the first base frame and the second base frame are provided with slide grooves;

[0012] The first base frame and the second base frame are slidably connected on the slide rail.

[0013] In one embodiment, the first base frame is a C-shaped plate structure, the first push roller is rotatably connected to the C-shaped opening of the first base frame, and the first spring is connected between the outer wall of the first base frame and the housing.

[0014] In one embodiment, the second base frame is a C-shaped plate structure, the second push roller is rotatably connected to the C-shaped opening of the second base frame, and the second spring is connected between the outer wall of the second base frame and the housing.

[0015] In one embodiment, the housing is a box-shaped structure, and the first base frame, the second base frame, the first spring, and the second spring are all located inside the housing.

[0016] In one embodiment, the grouting pipe passes through the housing, and the portion of the grouting pipe located inside the housing is clamped between the first push roller and the second push roller;

[0017] The housing is provided with a guide tube at the position where the grouting pipe passes through.

[0018] In one embodiment, the drive assembly includes a first motor and a second motor;

[0019] The first motor is mounted on the first base frame and is connected to the first push roller via a drive, and the second motor is mounted on the second base frame and is connected to the second push roller via a drive.

[0020] In one embodiment, the roller surfaces of the first push roller and the second push roller are both concave arc configurations with radii matching the grouting pipe.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] 1. This utility model uses a first push roller and a second push roller to form a clamping cavity that can hold the grouting pipe, and drives the first push roller and the second push roller to rotate in opposite directions through a drive component, thereby driving the grouting pipe to retract at a uniform speed, thus effectively avoiding the voids and incomplete filling that occur during manual operation;

[0023] 2. In the preferred embodiment of this utility model, the roller surfaces of the first push roller and the second push roller are set to an inwardly concave arc configuration with a radius matching the grouting pipe, which can effectively increase the contact area between the first push roller and the second push roller and the grouting pipe and prevent slippage during pushing.

[0024] 3. In the preferred embodiment of this utility model, the spring is set between the second end of the base frame and the shell, and the base frame is slidably set on the shell, so that the first push roller and the second push roller can clamp the grouting pipe at all times, ensuring the stability of the pipeline pushing device driving the grouting pipe to retract. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the pipeline pushing device in this embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of the pipeline pushing device in an embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the installation of the first push roller or the second push roller in an embodiment of this utility model.

[0029] Reference numerals: 2. Grouting pipe; 4. First push roller; 5. Second push roller; 6. Housing; 7. First base frame; 8. Second base frame; 9. First spring; 10. Second spring; 11. Slide rail; 12. Guide pipe; 13. First motor; 14. Second motor.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] like Figures 1 to 3The diagram shows a pipeline pushing device disclosed in this embodiment, which mainly includes a first push roller 4, a second push roller 5, and a driving assembly. The first push roller 4 and the second push roller 5 are spaced apart, and the first push roller 4 and the second push roller 5 form a clamping cavity capable of holding the grouting pipe 2. Part of the grouting pipe 2 is clamped in the clamping cavity between the first push roller 4 and the second push roller 5. The driving assembly is connected to the first push roller 4 and the second push roller 5 to drive the first push roller 4 and the second push roller 5 to rotate at the same speed but in opposite directions, thereby driving the grouting pipe 2 out of the grouting hole under the action of friction. At the same time, by changing the rotation speed of the first push roller 4 and the second push roller 5, the retraction speed of the grouting pipe 2 can be adjusted.

[0037] In practical implementation, the pipeline pushing device also includes a housing 6, a first base frame 7, a second base frame 8, a first spring 9, and a second spring 10. The housing 6 can be fixed to an external support. The first push roller 4 is rotatably connected to the first end of the first base frame 7 via a bearing, and the second push roller 5 is rotatably connected to the first end of the second base frame 8 via a bearing. Both the first base frame 7 and the second base frame 8 have sliding grooves at their bottoms, and the housing 6 is equipped with a slide rail 11. The first base frame 7 and the second base frame 8 are slidably connected to the housing 6 via the slide rail 11. The first spring 9 is connected between the second end of the first base frame 7 and the housing 6, and the second spring 10 is connected between the second end of the second base frame 8 and the housing 6. Both the first spring 9 and the second spring 10 are compression springs, causing the first base frame 7 and the second base frame 8 to be subjected to spring force, which tends to push the first push roller 4 and the second push roller 5 towards the grouting pipe 2. This ensures that the first push roller 4 and the second push roller 5 can clamp the grouting pipe 2 at all times, guaranteeing the stability of the pipeline pushing device driving the grouting pipe 2 during its retraction process.

[0038] In the specific implementation process, the shell 6 is a square box structure. The first base frame 7, the second base frame 8, the first spring 9, the second spring 10, the first push roller 4, and the second push roller 5 are all located inside the shell 6, thereby effectively preventing cement mortar from splashing onto the components during construction and solidifying, which would damage the pipeline pushing device.

[0039] In the specific implementation process, both the first base frame 7 and the second base frame 8 are C-shaped plate structures. The first push roller 4 is rotatably connected to the C-shaped opening of the first base frame 7, and part of the roller body of the first push roller 4 protrudes from the C-shaped opening of the first base frame 7 to contact the grouting pipe. The first spring 9 is connected between the outer wall of the first base frame 7 and the housing 6. Similarly, the second push roller 5 is rotatably connected to the C-shaped opening of the second base frame 8, and part of the roller body of the second push roller 5 protrudes from the C-shaped opening of the second base frame 8 to contact the grouting pipe. The second spring 10 is connected between the outer wall of the second base frame 8 and the housing 6.

[0040] In practical applications, the grouting pipe 2 passes through the housing 6, and the portion of the grouting pipe 2 inside the housing 6 is clamped between the first push roller 4 and the second push roller 5. Preferably, the grouting pipe 2 passes through the housing 6 along the front and rear walls of the housing 6. At the same time, guide pipes 12 are provided on both the front and rear sides of the housing 6, and the two guide pipes 12 are coaxial. The grouting pipe 2 passes through the two guide pipes 12 in sequence, ensuring that the section of the grouting pipe 2 inside the housing 6 is in a straight line. This makes the first push roller 4 and the second push roller 5 bear force evenly, avoids lateral force interference caused by bending, and improves the reliability of the pushing force transmission and the accuracy of speed control.

[0041] In this embodiment, the drive assembly includes a first motor 13 and a second motor 14. The first motor 13 is fixed to the top of the first base frame 7 by bolts or other fasteners, and its output end passes through the top plate of the first base frame 7 and is connected to the first push roller 4 via a spline. The second motor 14 is fixed to the top of the second base frame 8 by bolts or other fasteners, and its output end passes through the top plate of the second base frame 8 and is connected to the second push roller 5 via a spline. Meanwhile, the main bodies of both the first motor 13 and the second motor 14 pass through the housing 6 and are located outside the housing 6, for connection to an external electrical or hydraulic system. It is worth noting that in specific applications, a set of motors working in conjunction with a transmission mechanism can also be used as the drive assembly.

[0042] In a preferred embodiment, the roller surfaces of the first push roller 4 and the second push roller 5 are both concave arc configurations with radii matching the outer circumference of the grouting pipe 2, and the fan-shaped angles corresponding to the concave arcs on the first push roller 4 and the second push roller 5 are less than 180°, which can effectively increase the contact area between the first push roller 4 and the second push roller 5 and the grouting pipe 2, and prevent slippage during pushing.

[0043] The above description is only a preferred embodiment of the present utility model and does not limit the scope of protection of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A pipeline pushing device, characterized in that, It includes a first push roller, a second push roller, and a drive assembly, wherein the first push roller and the second push roller are spaced apart; The first pusher and the second pusher have a clamping cavity that can clamp the grouting pipe. The driving assembly is connected to the first pusher and the second pusher to drive the first pusher and the second pusher to rotate in opposite directions. The pipeline pushing device also includes a housing, a first base frame, a second base frame, a first spring, and a second spring; The first push roller is rotatably connected to the first end of the first base frame, the second push roller is rotatably connected to the first end of the second base frame, and the first base frame and the second base frame are slidably connected to the housing. The first spring is connected between the second end of the first base frame and the housing, and the second spring is connected between the second end of the second base frame and the housing.

2. The pipeline pushing device according to claim 1, characterized in that, The first push roller is rotatably connected to the first base frame via a bearing, and the second push roller is rotatably connected to the second base frame via a bearing.

3. The pipeline pushing device according to claim 1, characterized in that, The housing is provided with a slide rail, and the bottom of the first base frame and the second base frame are provided with slide grooves; The first base frame and the second base frame are slidably connected on the slide rail.

4. The pipeline pushing device according to claim 1, characterized in that, The first base frame is a C-shaped plate structure, the first push roller is rotatably connected to the C-shaped opening of the first base frame, and the first spring is connected between the outer wall of the first base frame and the housing.

5. The pipeline pushing device according to claim 1, characterized in that, The second base frame is a C-shaped plate structure, the second push roller is rotatably connected to the C-shaped opening of the second base frame, and the second spring is connected between the outer wall of the second base frame and the housing.

6. The pipeline pushing device according to any one of claims 1 to 5, characterized in that, The housing has a box-shaped structure, and the first base frame, the second base frame, the first spring, and the second spring are all located inside the housing.

7. The pipeline pushing device according to claim 6, characterized in that, The grouting pipe passes through the housing, and the portion of the grouting pipe located inside the housing is clamped between the first push roller and the second push roller; The housing is provided with a guide tube at the position where the grouting pipe passes through.

8. The pipeline pushing device according to any one of claims 1 to 5, characterized in that, The drive assembly includes a first motor and a second motor; The first motor is mounted on the first base frame and is connected to the first push roller via a drive, and the second motor is mounted on the second base frame and is connected to the second push roller via a drive.

9. The pipeline pushing device according to any one of claims 1 to 5, characterized in that, The roller surfaces of the first push roller and the second push roller are both concave arc configurations with radii matching the grouting pipe.

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