Butt joint supporting device of drill rod for cleaning hard objects in pipeline

Abstract

The utility model discloses a butt-joint supporting device for a pipeline hard object cleaning drill rod, which comprises a supporting sleeve, a plurality of supporting pieces are arranged in the circumferential direction of the supporting sleeve, and the supporting pieces are used for abutting against the inner wall of a pipeline and forming radial limit on the supporting sleeve when in use; a rotatable inner sleeve of the butt joint rod is arranged in the supporting sleeve, and the two ends of the butt joint rod are each provided with a drill rod connecting part used for being connected with a drill rod; according to the butt-joint supporting device for the pipeline hard object cleaning drill rod, the long drill rod can be stably supported, the deflection of the long drill rod in the construction process is reduced, and therefore the risk that a pipeline is damaged is reduced, and the probability of occurrence of the phenomena of collapse, collapse and the like in the construction process is reduced.

Description

Technical Field

[0001] This utility model relates to the field of municipal drainage pipeline repair and construction technology, specifically to a docking support device for a drill rod used for cleaning hard objects from pipelines. Background Technology

[0002] After years of operation, municipal drainage pipes often accumulate a large amount of hard material on their inner walls, requiring trenchless repair techniques. This material may be due to the long-term accumulation of stones or the hardening and blockage caused by illegally discharged concrete slurry from nearby areas. Before implementing trenchless repair techniques such as pipe cracking or ultraviolet curing, the hard material inside the pipe must be removed and cleaned to make room for subsequent repair work.

[0003] In municipal pipeline repair work, a motor typically drives a drill rod connected to an alloy drill bit. Hard objects are then crushed by gradually extending the drill rod, followed by manual cleaning. Currently, drill rods are generally composed of multiple sections directly spliced ​​together. During use, as the length of the drill rod increases, its deflection significantly increases. Furthermore, the uneven distribution of hard objects within the pipe and inconsistent cross-sectional strength make the drill bit prone to bias to one side during drilling due to uneven stress. Municipal drainage pipelines commonly use corrugated pipes or PE pipes with diameters of 400-600mm. The narrow pipe space means that if a high-speed rotating drill bit becomes biased, it can easily collide with the fragile pipe wall. Once the original pipeline is damaged, its load-bearing capacity will decrease significantly, potentially leading to settlement or partial collapse. In such cases, trenchless repair methods become impossible, necessitating trenching repair. However, the surrounding pipelines of municipal networks are complex and difficult to excavate, and road excavation can severely impact the surrounding environment, traffic, and residents' lives.

[0004] Therefore, it is necessary to develop a device that can support and stabilize long drill pipes, reduce the deflection of long drill pipes during construction, thereby reducing the risk of pipeline damage and lowering the probability of collapse and other phenomena during construction. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a docking support device for drilling rods used for cleaning hard objects in pipelines. By using this device, long drilling rods can be supported and stabilized, reducing the deflection of long drilling rods during construction, thereby reducing the risk of pipeline damage and lowering the probability of collapse and other phenomena during construction.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a docking support device for a drill rod used for cleaning hard objects from pipes, comprising: a support sleeve, wherein a plurality of support members are arranged circumferentially on the support sleeve, the support members being used to abut against the inner wall of the pipe during use and to form a radial limit on the support sleeve; and a docking rod, wherein a rotatable inner sleeve is disposed in the support sleeve, and both ends of the docking rod are respectively provided with drill rod connecting portions for connecting with the drill rod.

[0007] Furthermore, the drill pipe connection includes a connecting flange fixed to the corresponding end of the connecting rod.

[0008] Furthermore, a bearing is provided between the connecting rod and the support sleeve.

[0009] Furthermore, the length of the support member is adjustable.

[0010] Furthermore, there are three support members, and the three support members are evenly distributed along the circumference of the support sleeve.

[0011] Furthermore, the support component is a hydraulic jack.

[0012] Furthermore, a connecting sleeve is provided on the outer sleeve of the support sleeve, and a plurality of mounting lugs are provided on the connecting sleeve along the circumference, and the hydraulic jack is installed on the mounting lugs.

[0013] Furthermore, a mounting plate is fixed to the outer end of the mounting lug, and the hydraulic jack is mounted on the mounting plate.

[0014] Furthermore, the outer end of the support member is provided with a movable ball, which is used to abut against the inner wall of the pipe during use.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model provides a docking support device for drill rods used in pipeline hard object removal. This device stabilizes long drill rods, reduces their deflection during construction, and thus minimizes the risk of pipeline damage, lowering the probability of collapses and other disruptions during construction. Specifically, during use, each section of the drill rod can be docked and lengthened using this device. Support components on the support sleeve provide stable support and limit the connection of the docked rods, effectively ensuring the stability of the drill bit during its travel. This allows for the breaking of hard objects while protecting the original pipeline wall, reducing the risk of pipeline damage and lowering the probability of collapses and other disruptions during construction. Furthermore, this docking support device not only improves the working stability of long drill rods but also enables rapid and stable connection of adjacent sub-drill rods, facilitating efficient docking construction.

[0017] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an isometric structure according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure when the support device is used in conjunction with the pipeline.

[0020] Reference numerals: 1-Support sleeve; 2-Support component; 3-Pipe; 4-Connecting rod; 5-Bearing; 6-Connecting sleeve; 601-Mounting lug; 602-Mounting plate; 7-Moving ball; 8-Drill rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-2This embodiment discloses a docking support device for drill rods used for cleaning hard objects from pipes, comprising: a support sleeve 1, wherein a plurality of support members 2 are arranged circumferentially on the support sleeve 1, the support members 2 being used to abut against the inner wall of the pipe 3 and form a radial limit on the support sleeve 1 during use; and a docking rod 4, wherein a rotatable inner sleeve is disposed in the support sleeve 1, and both ends of the docking rod 4 are respectively provided with drill rod connecting portions 401 for connecting with drill rods 8. In specific use, a docking support device is set between two adjacent drill rods 8, and the drill rods 8 on the corresponding side are connected to the drill rod connecting portions 401 at the corresponding ends. Here, the drill rod connecting portions 401 are preferably set as connecting flanges. Since the rotatable inner sleeve of the docking rod 4 is disposed in the support sleeve 1, the docking rod 4 can rotate during operation, which can ensure the normal rotation of the drill rods 8. It can be understood that during use, each support member 2 works together to complete the radial limit on the support sleeve 1. The support member 2 can be a support rod or other structure, which is not limited. The aforementioned docking support device for drilling rods used for cleaning hard objects from pipelines can stabilize long drill rods, reduce their deflection during construction, thereby reducing the risk of damage to pipeline 3 and lowering the probability of collapse or subsidence during construction. Specifically, during use, each section of drill rod 8 can be docked and lengthened using this support device. The support member 2 on the support sleeve 1 provides stable support and limitation for the docking rod 4, thus providing stable support for the drill rod 8. This effectively ensures the stability of the drill bit during its travel, achieving the breaking of hard objects while protecting the original pipe wall of pipeline 3, reducing the risk of damage to pipeline 3, and lowering the probability of collapse or subsidence during construction. Furthermore, this docking support device not only improves the working stability of long drill rods but also enables rapid and stable connection of adjacent sub-drill rods 8, facilitating efficient docking construction.

[0023] In this embodiment, the drill pipe connecting part 401 includes a connecting flange fixed to the corresponding end of the docking rod 4. Specifically, the connecting flange and the docking rod 4 are an integral structure, or the connecting flange and the docking rod 4 are welded into a whole. Multiple connecting through holes are provided on the connecting flange, and the drill pipe 8 and the connecting flange are fixedly connected by bolts during use. By adopting the connecting flange structure, the connection stability between the docking rod 4 and the drill pipe 8 is ensured.

[0024] In this embodiment, a bearing 5 is provided between the connecting rod 4 and the support sleeve 1. By providing the bearing 5, the smoothness of the rotation of the connecting rod 4 is improved, thereby ensuring the rotational stability of the drill rod 8 and enhancing the reliability of the device. Specifically, a deep groove ball bearing is selected for the bearing 5. The fitting and installation relationship between the bearing 5, the connecting rod 4, and the support sleeve 1 is existing technology and will not be elaborated here.

[0025] In this embodiment, the length of the support member 2 is adjustable. Using an adjustable-length support member 2 facilitates matching with pipes of different diameters, improving the versatility of the device. Specifically, the support member 2 is a hydraulic jack, a mature product, whose length is adjusted by adjusting the position of its ejector end.

[0026] In this embodiment, there are three support members 2, which are evenly distributed along the circumference of the support sleeve 1. Using three evenly distributed support members 2 provides stable support for the support sleeve 1, while also simplifying the structure, promoting lightweight design, and reducing production costs.

[0027] In this embodiment, the support member 2 is a hydraulic jack. Specifically, a conventional vertical hydraulic jack is used here. Hydraulic jacks are easy to adjust in length and convenient to use; at the same time, they have good load-bearing capacity and good reliability when cleaning hard objects.

[0028] In this embodiment, a connecting sleeve 6 is fixedly mounted on the support sleeve 1. The connecting sleeve 6 has a plurality of mounting lugs 601 arranged circumferentially, and the hydraulic jack is mounted on the mounting lugs 601. Specifically, the connecting sleeve 6 is welded to the support sleeve 1, and the mounting lugs 601 and the connecting sleeve 6 are an integral structure. It is understood that the number of mounting lugs 601 is consistent with the number of hydraulic jacks. In this structural design, the connecting sleeve 6 is used to complete the hydraulic jack; the connecting sleeve 6 can be manufactured separately, the structure is simple, and it helps to save production costs.

[0029] In this embodiment, a mounting plate 602 is fixedly provided at the outer end of the mounting lug 601, and the hydraulic jack is mounted on the mounting plate 602. Specifically, the mounting plate 602 is welded and fixed to the mounting lug 601. The hydraulic jack can be mounted on the mounting plate 602 with bolts. By setting the mounting plate 602, the installation stability and ease of installation of the hydraulic jack are improved.

[0030] In this embodiment, the outer end of the support member 2 is provided with a movable ball 7, which is used to abut against the inner wall of the pipe 3 during use. It can be understood that the outer end of the support member 2 refers to the outer end of the support member 2 along the radial direction of the pipe 3. Specifically, the movable ball 7 is a stainless steel ball. By setting the movable ball 7, the friction with the inner wall of the pipe 3 can be reduced, thereby facilitating the smooth movement of the drill rod 8.

[0031] Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A docking support device for drill rods used for cleaning hard objects from pipes, characterized in that, include: Support sleeve (1), the support sleeve (1) is provided with a plurality of support members (2) in the circumferential direction, the support members (2) are used to abut against the inner wall of the pipe (3) during use and form a radial limit on the support sleeve (1); The connecting rod (4) has a rotatable inner sleeve disposed in the support sleeve (1), and the two ends of the connecting rod (4) are respectively provided with drill rod connecting parts (401) for connecting with drill rod (8).

2. The docking support device for drilling rods used for cleaning hard objects from pipes according to claim 1, characterized in that: The drill pipe connection (401) includes a connecting flange fixed to the corresponding end of the connecting rod (4).

3. The docking support device for drilling rods used for cleaning hard objects from pipes according to claim 1, characterized in that: A bearing (5) is provided between the connecting rod (4) and the support sleeve (1).

4. The docking support device for drilling rods used for cleaning hard objects from pipes according to claim 1, characterized in that: The length of the support member (2) is adjustable.

5. The docking support device for drilling rods used for cleaning hard objects from pipes according to claim 1, characterized in that: There are three support members (2), and the three support members (2) are evenly distributed along the circumference of the support sleeve (1).

6. The docking support device for drilling rods used for cleaning hard objects from pipes according to claim 1, characterized in that: The support component (2) is a hydraulic jack.

7. The docking support device for drilling rods used for cleaning hard objects from pipes according to claim 6, characterized in that: The support sleeve (1) is fixedly covered with a connecting sleeve (6), and the connecting sleeve (6) is provided with a plurality of mounting lugs (601) along the circumferential direction. The hydraulic jack is installed on the mounting lugs (601).

8. The docking support device for drilling rods used for cleaning hard objects from pipes according to claim 7, characterized in that: The outer end of the mounting lug (601) is fixed with a mounting plate (602), and the hydraulic jack is mounted on the mounting plate (602).

9. The docking support device for drilling rods used for cleaning hard objects from pipes according to claim 1, characterized in that: The outer end of the support member (2) is provided with a movable ball (7), which is used to abut against the inner wall of the pipe (3) during use.

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