A pipeline protection device for tunnel excavation

Abstract

The utility model discloses a pipeline protection device for tunnel excavation, including installing pipeline protection device ontology in the excavation groove side, be equipped with pipeline in the excavation groove, include: first L shape seat, it is two, second L shape seat, it is two, the bottom inner wall of first L shape seat and the bottom inner wall of second L shape seat all have the T shape fixed anchor rod of screw joint, fix the whole device through four T shape fixed anchor rods, L shape mounting rod, it is two, respectively with corresponding second L shape seat top movable contact, its right side fixedly connected with L shape guide rod. The utility model discloses through a series of structure's setting, can to pipeline promotion and shelter protection, through the shelter protection after promotion, can effectively reduce the risk of mistaken touch damage in the excavation process, improve the protection effect, and can move the pipeline after promotion to with the upper part of the excavation groove staggered, can effectively reduce the influence to the subsequent excavation operation.

Description

Technical Field

[0001] This utility model relates to the field of pipeline protection technology, and in particular to a pipeline protection device for tunnel excavation. Background Technology

[0002] In urban underground excavation and construction, due to construction constraints, various pipeline connections are numerous and complex. Damage to these pipelines can cause unnecessary economic losses. Therefore, it is essential to protect pipelines crossing roads to minimize the possibility of damage. Typically, isolation or reinforcement methods are used for pipeline protection, but these methods are relatively complex and can hinder subsequent construction phases. To address this, a search revealed that publication number CN208997465U discloses a suspension protection device for pipelines during trench excavation. The suspension protection device includes a main suspension frame and steel wire ropes; the main suspension frame consists of two symmetrically arranged frames in the trench. On the opposite side of the trench, in the soil layer, there are two sets of symmetrically arranged wire ropes, one set corresponding to one main suspension frame; a fixed foundation and fixing blocks are installed; the main suspension frame is connected to the fixed foundation, and tie rings are connected to the fixing blocks; locking fasteners are installed at the pipeline suspension position and on the upper crossbar of the main suspension frame; one end of the wire rope is connected to the locking fastener of the pipeline, and the other end is tensioned and passed through the locking fastener on the main suspension frame and fixed to the tie ring; this device, through the symmetrical main suspension frame and the diagonal wire rope, can effectively suspend and protect the pipeline during the trench excavation process, and has the characteristics of simple operation, stable device, balanced force and space saving;

[0003] The pipeline suspension protection device disclosed in the above-mentioned patent still has the following shortcomings in use: the method of suspending the pipeline for protection means that after suspension, the pipeline is still located above the excavated trench, which will affect the normal construction. Moreover, the lack of protection above the excavated trench poses a risk of accidental damage during excavation, resulting in an unsatisfactory protection effect. In view of the above, this application proposes a pipeline protection device for tunnel excavation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pipeline protection device for tunnel excavation.

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

[0006] A pipeline protection device for tunnel excavation includes a pipeline protection device body installed on the side of the excavated trench, wherein a pipeline is disposed within the excavated trench, comprising:

[0007] The first L-shaped seat consists of two;

[0008] There are two second L-shaped seats. The bottom inner walls of the first L-shaped seat and the bottom inner walls of the second L-shaped seat are threaded with T-shaped fixing anchors. The entire device is fixed by four T-shaped fixing anchors.

[0009] There are two L-shaped mounting rods, which are in movable contact with the top of the corresponding second L-shaped seat. An L-shaped guide rod is fixedly connected to the right side of each rod. The first L-shaped seat is slidably sleeved on the corresponding L-shaped guide rod. The L-shaped guide rod provides lateral guidance for the L-shaped mounting rod.

[0010] The lateral drive mechanism consists of two sets, which are respectively installed on the corresponding second L-shaped seat and L-shaped mounting rod. The lateral drive mechanism is used to guide the L-shaped mounting rod laterally.

[0011] The lifting mechanism, mounted on two L-shaped mounting rods, is used to lift pipelines.

[0012] The protective mechanism, installed inside the two L-shaped mounting rods, is used to shield the pipeline after it has been lifted.

[0013] Preferably, the lateral drive mechanism includes a multi-stage electric telescopic rod embedded and fixed on the inner wall of the right side of the second L-shaped seat. The left end of the output shaft of the multi-stage electric telescopic rod is fixedly connected to an L-shaped moving rod, and the right end of the L-shaped moving rod is fixedly connected to the left side of the corresponding L-shaped mounting rod. The multi-stage electric telescopic rod is used to drive the L-shaped mounting rod laterally.

[0014] Preferably, the lifting mechanism includes four electric hoists, which are fixed in pairs to the top of corresponding L-shaped mounting rods. Each electric hoist is equipped with a lifting rope, and the bottom ends of the four lifting ropes are attached to the same lifting plate located below the L-shaped mounting rod. The four electric hoists and the four lifting ropes work together to vertically drive the lifting plate. The driving principle is existing technology and will not be described in detail here. Multiple steel wire ropes are attached to the bottom of the lifting plate. All the steel wire ropes pass around the bottom of the pipeline, and the pipeline is lifted by the multiple steel wire ropes.

[0015] Preferably, the protective mechanism includes an elastic protective cloth, the top of which is fixedly connected to the inner top wall of two L-shaped mounting rods. Two hooks are suspended on the elastic protective cloth. A first suspension ring is fixedly connected to the inner left side of the L-shaped mounting rod. The hooks cooperate with the corresponding first suspension rings to suspend the elastic protective cloth.

[0016] Preferably, a first synchronous control switch is fixedly connected to the front side of the multi-stage electric telescopic pole located at the front. The first synchronous control switch is electrically connected to the two multi-stage electric telescopic poles and is used to control the two multi-stage electric telescopic poles to open synchronously.

[0017] Preferably, a second synchronous control switch is fixedly connected to the front side of the electric hoist located on the left front side. The second synchronous control switch is electrically connected to the four electric hoists and is used to control the four electric hoists to start synchronously.

[0018] Preferably, multiple second suspension rings are fixedly connected to both sides of the bottom of the lifting plate, and the two ends of the wire rope are respectively tied to the two corresponding second suspension rings.

[0019] Compared with existing technologies, the beneficial effects of this utility model are:

[0020] 1. By combining the lateral drive mechanism, the lifting mechanism and the L-shaped mounting rod, the pipeline can be moved out of the excavated trench and moved laterally to offset it from the top of the excavated trench. By moving the pipeline to one side of the excavated trench, the impact on subsequent excavation operations can be effectively reduced.

[0021] 2. The protective mechanism can shield and protect the pipeline after it has been lifted, reducing the risk of accidental damage during excavation and improving the protection effect.

[0022] This utility model, through a series of structural designs, can lift and shield pipelines for protection. By lifting and shielding them, the risk of accidental damage during excavation can be effectively reduced, improving the protection effect. Furthermore, the lifted pipeline can be moved laterally to offset it from the excavated trench, effectively reducing the impact on subsequent excavation operations. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a pipeline protection device for tunnel excavation proposed in this utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the left-side view structure;

[0025] Figure 3 This is a schematic diagram of the main sectional view of a pipeline protection device for tunnel excavation proposed in this utility model.

[0026] Figure 4 This is a cross-sectional structural diagram of a pipeline protection device for tunnel excavation proposed in this utility model, in which the pipeline is lifted and in a shielded and protected state.

[0027] In the diagram: 1. First L-shaped seat; 2. Second L-shaped seat; 3. T-shaped fixed anchor rod; 4. L-shaped mounting rod; 5. L-shaped guide rod; 6. Lateral drive mechanism; 601. Multi-stage electric telescopic rod; 602. L-shaped moving rod; 603. First synchronous control switch; 7. Lifting mechanism; 701. Electric hoist; 702. Lifting rope; 703. Lifting plate; 704. Second suspension ring; 705. Steel wire rope; 706. Second synchronous control switch; 8. Excavated trench; 9. Pipeline; 10. Elastic protective cloth; 11. First suspension ring; 12. Hook. Detailed Implementation

[0028] 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.

[0029] Reference Figure 1-4 A pipeline protection device for tunnel excavation includes a pipeline protection device body installed on the side of an excavated trench 8, wherein a pipeline 9 is disposed within the excavated trench 8, and further includes:

[0030] The first L-shaped seat 1 consists of two;

[0031] There are two L-shaped seats 2. The bottom inner walls of the first L-shaped seat 1 and the bottom inner walls of the second L-shaped seat 2 are threaded with T-shaped fixing anchor rods 3. Anchor rod holes are opened on the bottom inner walls of the first L-shaped seat 1 and the bottom inner walls of the second L-shaped seat 2. The anchor rod holes are threadedly connected to the corresponding T-shaped fixing anchor rods 3. The entire device is fixed by four T-shaped fixing anchor rods 3.

[0032] There are two L-shaped mounting rods 4, which are in movable contact with the top of the corresponding second L-shaped seat 2. An L-shaped guide rod 5 is fixedly connected to the right side of the rod. The first L-shaped seat 1 is slidably sleeved on the corresponding L-shaped guide rod 5. A guide hole is opened on the top left side of the first L-shaped seat 1. The inner wall of the guide hole is in slidable contact with the outer side of the corresponding L-shaped guide rod 5. The L-shaped guide rod 5 plays a lateral guiding role for the L-shaped mounting rod 4.

[0033] The transverse drive mechanism 6 consists of two sets, which are respectively mounted on the corresponding second L-shaped seat 2 and L-shaped mounting rod 4;

[0034] The lateral drive mechanism 6 includes a multi-stage electric telescopic rod 601 embedded and fixed on the inner wall of the right side of the second L-shaped seat 2. An L-shaped moving rod 602 is fixedly connected to the left end of the output shaft of the multi-stage electric telescopic rod 601. The right end of the L-shaped moving rod 602 is fixedly connected to the left side of the corresponding L-shaped mounting rod 4. The multi-stage electric telescopic rod 601 is used to drive the L-shaped mounting rod 4 laterally. A first synchronous control switch 603 is fixedly connected to the front side of the multi-stage electric telescopic rod 601 located at the front. The first synchronous control switch 603 is electrically connected to the two multi-stage electric telescopic rods 601. The first synchronous control switch 603 is used to control the two multi-stage electric telescopic rods 601 to open synchronously.

[0035] The lifting mechanism 7 is mounted on two L-shaped mounting rods 4;

[0036] The lifting mechanism 7 includes four electric hoists 701, which are fixed in pairs to the top of corresponding L-shaped mounting rods 4. A second synchronous control switch 706 is fixedly connected to the front side of the electric hoist 701 located on the left front side. The second synchronous control switch 706 is electrically connected to the four electric hoists 701 and is used to control the four electric hoists 701 to open synchronously. Each electric hoist 701 is equipped with a lifting rope 702. The bottom ends of the four lifting ropes 702 are fixedly attached to the same lifting plate 703 located below the L-shaped mounting rod 4. Two first through-holes are opened on the top inner wall of the L-shaped mounting rod 4. The lifting rope 702 is located in the corresponding first through hole and does not contact the inner wall of the first through hole. The four electric hoists 701 and the four lifting ropes 702 cooperate to drive the lifting plate 703 vertically. The driving principle is existing technology and will not be described in detail here. Multiple steel wire ropes 705 are bolted to the bottom of the lifting plate 703. Multiple second suspension rings 704 are fixedly connected to both sides of the bottom of the lifting plate 703. The two ends of the steel wire ropes 705 are respectively bolted to the two corresponding second suspension rings 704. The multiple steel wire ropes 705 all pass around the bottom of the pipeline 9, and the pipeline 9 is lifted by the multiple steel wire ropes 705.

[0037] In this implementation plan: the entire device is fixed to the perimeter of the excavated trench 8 by four T-shaped anchor rods 3. Then, the four electric hoists 701 are opened synchronously in the forward direction by the second synchronous control switch 706. The four electric hoists 701 lower the lifting plate 703 to the top of the pipeline 9 in the excavated trench 8 through the lifting rope 702 on them. Then, multiple steel wire ropes 705 are passed through the pipeline 9 and tied to the corresponding second suspension ring 704. Then, the four electric hoists 701 are opened synchronously in the reverse direction. The four electric hoists 701 drive the lifting plate 703 and multiple steel wire ropes 705 to lift the pipeline 9 upward in sequence through the four lifting ropes 702. When the bottom of the pipeline is higher than the top of the second L-shaped seat 2, the four electric hoists 701 are turned off.

[0038] The first synchronous control switch 603 controls the two multi-stage electric telescopic rods 601 to open synchronously in the forward direction. The output shaft of the multi-stage electric telescopic rod 601 drives the L-shaped mounting rod 4 to move to the left through the corresponding L-shaped moving rod 602. The two L-shaped mounting rods 4 drive the lifted pipeline 9 to move to the left through the lifting mechanism 7 and offset it from the top of the excavated trench 8. After it is completely offset, the two multi-stage electric telescopic rods 601 can be closed. By moving the pipeline 9 laterally and offsetting it from the excavated trench 8, the impact of the pipeline 9 being located directly above the excavated trench 8 on the excavation operation can be effectively reduced.

[0039] It should be noted that: the electric hoist 701 can preferably be a CD1 type wire rope electric hoist, the multi-stage electric telescopic rod 601 can preferably be a Jingge F series electric telescopic rod, and the first synchronous control switch 603 and the second synchronous control switch 706 can preferably be XB2 series buttons, which consist of multiple buttons combined on a button box to form a button station. The principle of its synchronous control is existing technology in this field and will not be elaborated on here.

[0040] Regarding power supply: The mains power is connected to the power input interface of each device through conventional power distribution devices such as circuit breakers, contactors, and power modules (not marked in the figure) and flexible wires to form a complete power supply circuit. This power supply scheme is a conventional power distribution method for industrial equipment and is a mature and well-known technical means, so it will not be described in detail here.

[0041] Furthermore:

[0042] A pipeline protection device for tunnel excavation also includes a protective mechanism installed inside two L-shaped mounting rods 4. The protective mechanism includes an elastic protective cloth 10, the top of which is fixedly connected to the inner top wall of the two L-shaped mounting rods 4. Two hooks 12 are suspended on the elastic protective cloth 10. A first suspension ring 11 is fixedly connected to the inner left side wall of the L-shaped mounting rod 4. The hooks 12 cooperate with the corresponding first suspension rings 11. The hooks 12 and the first suspension rings 11 cooperate to suspend the elastic protective cloth 10.

[0043] In this implementation plan: after the pipeline 9 is lifted, the hooks 12 on the elastic protective cloth 10 can be hung on the corresponding first suspension rings 11. At this time, the elastic protective cloth 10 will shield and protect the lifted pipeline 9, reducing the risk of accidental damage during the excavation process.

[0044] It should be noted that: the elastic protective fabric 10 can preferably be made of high-elasticity Oxford cloth.

[0045] Working principle: In use, after a portion of the trench 8 has been excavated and the pipeline 9 is exposed, the entire device is fixed to the perimeter of the trench 8 by four T-shaped anchor rods 3. After fixing, the four electric hoists 701 are simultaneously opened in the forward direction by the second synchronous control switch 706. The four electric hoists 701 lower the lifting plate 703 to above the pipeline 9 in the trench 8 through the lifting rope 702. Then, multiple steel wire ropes 705 are passed through the pipeline 9 and tied to the corresponding second suspension rings 704 for suspension. After the suspension is completed, the four electric hoists 701 are controlled to open in reverse synchronously. The four electric hoists 701 drive the lifting plate 703 to move upward through the four lifting ropes 702. The lifting plate 703 lifts the pipeline 9 upward through multiple steel wire ropes 705. When the bottom of the lifting plate is higher than the top of the second L-shaped seat 2, the four electric hoists 701 are closed, and the hooks 12 on the elastic protective cloth 10 are hung on the corresponding first suspension rings 11. At this time, the elastic protective cloth 10 shields and protects the pipeline 9 after it is lifted.

[0046] Next, the first synchronous control switch 603 controls the two multi-stage electric telescopic rods 601 to open synchronously in the forward direction. The output shaft of the multi-stage electric telescopic rod 601 drives the corresponding L-shaped moving rod 602 to move to the left. The two L-shaped moving rods 602 drive the two L-shaped mounting rods 4 to move to the left. The two L-shaped mounting rods 4 drive the lifted pipeline 9 to move to the left through the lifting mechanism 7 and offset it from the top of the excavated trench 8. After it is completely offset, the two multi-stage electric telescopic rods 601 can be closed. By shielding and protecting the pipeline 9 and moving it laterally to offset it from the excavated trench 8, the impact of the pipeline 9 being located directly above the excavated trench 8 on the excavation operation can be effectively reduced. Moreover, by shielding and protecting it, the risk of accidental damage during the excavation process can be effectively reduced, thereby improving the protection effect.

[0047] After the excavation is completed, when it is necessary to put the pipeline 9 back into the excavated trench 8, the two multi-stage electric telescopic rods 601 are activated in reverse. Similarly, the operation process of the multi-stage electric telescopic rods 601 is reversed, so that the pipeline 9 moves to the top of the excavated trench 8 and the hook 12 is separated from the first suspension ring 11, thus removing the obstruction of the pipeline 9. Then, the four electric hoists 701 are activated in the forward direction. Similarly, the operation direction of the four electric hoists 701 is reversed, so that the pipeline 9 moves downward into the excavated trench 8. The wire rope 705 can then be removed from the corresponding two second suspension rings 704 and pulled out from the bottom of the pipeline 9, thereby releasing the fixation of the pipeline 9 and allowing the pipeline 9 to be put back into the excavated trench 8.

[0048] In addition, when the length of pipeline 9 is long, multiple devices can be installed to simultaneously lift and drive pipeline 9 laterally.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pipeline protection device for tunnel excavation, comprising a pipeline protection device body installed on the side of an excavation trench (8), wherein a pipeline (9) is disposed within the excavation trench (8), characterized in that, include: The first L-shaped seat (1) consists of two; The second L-shaped seat (2) consists of two parts. The bottom inner wall of the first L-shaped seat (1) and the bottom inner wall of the second L-shaped seat (2) are both threaded with T-shaped fixed anchor rods (3). There are two L-shaped mounting rods (4), which are in active contact with the top of the corresponding second L-shaped seat (2) respectively. An L-shaped guide rod (5) is fixedly connected to its right side. The first L-shaped seat (1) is slidably sleeved on the corresponding L-shaped guide rod (5). The transverse drive mechanism (6) consists of two sets, which are respectively installed on the corresponding second L-shaped seat (2) and L-shaped mounting rod (4); The lifting mechanism (7) is installed on two L-shaped mounting rods (4); The protective mechanism is installed inside the two L-shaped mounting rods (4).

2. The pipeline protection device for tunnel excavation according to claim 1, characterized in that, The transverse drive mechanism (6) includes a multi-stage electric telescopic rod (601) embedded and fixed on the inner wall of the right side of the second L-shaped seat (2). The left end of the output shaft of the multi-stage electric telescopic rod (601) is fixedly connected to an L-shaped moving rod (602), and the right end of the L-shaped moving rod (602) is fixedly connected to the left side of the corresponding L-shaped mounting rod (4).

3. A pipeline protection device for tunnel excavation according to claim 1, characterized in that, The lifting mechanism (7) includes four electric hoists (701), which are fixed in pairs on the top of the corresponding L-shaped mounting rods (4). Each electric hoist (701) is equipped with a lifting rope (702). The bottom ends of the four lifting ropes (702) are connected to the same lifting plate (703) located below the L-shaped mounting rod (4). Multiple steel wire ropes (705) are connected to the bottom of the lifting plate (703). All the steel wire ropes (705) pass around the bottom of the pipeline (9).

4. A pipeline protection device for tunnel excavation according to claim 1, characterized in that, The protective mechanism includes an elastic protective cloth (10), the top of which is fixedly connected to the inner top wall of two L-shaped mounting rods (4), and two hooks (12) are suspended on the elastic protective cloth (10). A first suspension ring (11) is fixedly connected to the inner left side of the L-shaped mounting rod (4), and the hooks (12) cooperate with the corresponding first suspension rings (11).

5. A pipeline protection device for tunnel excavation according to claim 2, characterized in that, A first synchronous control switch (603) is fixedly connected to the front side of the multi-stage electric telescopic pole (601) located at the front, and the first synchronous control switch (603) is electrically connected to the two multi-stage electric telescopic poles (601).

6. A pipeline protection device for tunnel excavation according to claim 3, characterized in that, A second synchronous control switch (706) is fixedly connected to the front side of the electric hoist (701) located on the left front side. The second synchronous control switch (706) is electrically connected to the four electric hoists (701).

7. A pipeline protection device for tunnel excavation according to claim 3, characterized in that, Multiple second suspension rings (704) are fixedly connected to both sides of the bottom of the lifting plate (703), and the two ends of the wire rope (705) are respectively tied to the two corresponding second suspension rings (704).

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