Plugging structure for pipe jacking hole

Abstract

The utility model relates to the technical field of pipe jacking hole construction, in particular to a plugging structure for a pipe jacking hole, which comprises a sealing hole ring, a reinforcing steel bar, an anti-overflow structure and a mounting and hoisting mechanism, the anti-overflow structure is arranged at the top of the sealing hole ring and comprises a cord fabric rubber plate capable of filling a gap between the sealing hole ring and the hole opening; the anti-overflow structure further comprises a plurality of adjusting plates, the adjusting plates are arranged on the sealing hole ring, and the adjusting plates are used for installing the cord fabric rubber plate on the top of the sealing hole ring and adjusting the position of the cord fabric rubber plate. According to the technical scheme, through cooperation between the sealing hole ring and the anti-overflow structure, an operator can independently and timely adjust the adjusting plate according to specific requirements of a construction site so as to adapt to different construction conditions and requirements. The construction process is ensured to be carried out smoothly, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe jacking hole construction technical field, concretely relates to a kind of plugging structure for pipe jacking hole. BACKGROUND

[0002] In municipal engineering, pipe jacking technology is a commonly used trenchless pipe laying method, especially suitable for crossing ground structures, underground pipelines, highways, railways and river channels and other complex terrains. Compared with the traditional trenching pipe laying construction technology, pipe jacking method has the advantages of small construction area, small ground activity impact, low noise and vibration, and no environmental pollution. However, in the pipe jacking construction process, the plugging of the hole is a key technical link, especially in the water-bearing sand layer zone or the complex geological conditions of the deep buried receiving well, the plugging construction of the hole is particularly complex and difficult.

[0003] During the key stage of hole ring hoisting construction pouring, there will inevitably be gaps between the hole ring and the pipe joint. These gaps constitute potential risk points during pipe jacking and subsequent normal jacking. Due to the pressure of the external soil and the fluidity of the thixotropic mud, they can easily flow into the starting well through these gaps. This not only affects the construction progress, but more importantly, it can cause serious quality and safety accidents, posing a threat to the safety of personnel on the construction site, and may also cause damage to the surrounding environment and underground pipelines.

[0004] Chinese patent authorized announcement No. CN217030189U is a hole plugging and soil retaining device for pipe jacking construction, which can close the gap between the inner wall of the hole and the outer wall of the machine head by controlling the rotation of the movable rod, pushing the anti-overflow plate with equal angles and sliding towards the center of the movable ring. The rubber buffer pad can realize soft connection between the anti-overflow plate and the machine head, avoid wear and tear, and has higher sealing degree and stronger soil blocking efficiency. It is simple to operate and convenient for use on construction sites.

[0005] However, the above structure is not convenient for individual adjustment of each anti-overflow plate in actual use, limiting the flexibility of the plugging structure, and may also cause some anti-overflow plates to fail to closely fit the gap in some cases, causing the influx of external soil and thixotropic mud, increasing the risk and difficulty of construction. Utility model content

[0006] To solve the problem of not being convenient for individual adjustment of the adjusting plate, a plugging structure for pipe jacking hole is provided, which cooperates between the sealing hole ring and the anti-overflow structure.

[0007] In order to solve the prior art problems, the utility model provides a kind of for pipe jacking hole's plugging structure, including sealing hole ring and reinforcing bar, the plugging structure of pipe jacking hole further include anti -spill structure and installation hoisting mechanism;Anti -spill structure is set at the top of sealing hole ring, and anti -spill structure includes the curtain rubber board that can fill up the gap between sealing hole ring and hole mouth;Anti -spill structure further includes adjusting plate, adjusting plate has multiple and is separately set on sealing hole ring, adjusting plate is used to install curtain rubber board on the top of sealing hole ring and adjusts position;Installation hoisting mechanism is set at the outside of sealing hole ring, and installation hoisting mechanism is used to fix sealing hole ring and carry out subsequent hoisting.

[0008] Preferably, the anti-spill structure further includes a positioning screw and a locking nut; the positioning screw has multiple and is respectively arranged on the top of the sealing hole ring; the locking nut is arranged on the positioning screw, and the locking nut is threadedly connected with the positioning screw; when the locking nut rotates, the locking nut can abut on the adjusting plate.

[0009] Preferably, a straight slot is formed on the adjusting plate for the positioning screw to slide, and both ends of the straight slot are semicircular shapes that fit the outside of the positioning screw.

[0010] Preferably, the installation hoisting mechanism includes a mounting frame, a moving part, a rotating block and a clamping part; the mounting frame is arranged outside the sealing hole ring; the moving part is slidably arranged on both sides of the mounting frame and has multiple; the rotating block is rotatably arranged on the moving part and located on one side of the sealing hole ring; the clamping part is slidably arranged on the rotating block and located above the sealing hole ring.

[0011] Preferably, the installation hoisting mechanism further includes a first screw and a setting rack; the first screw is rotatably arranged on the top of the moving part, and the first screw is threadedly connected with the clamping part; the setting rack is installed above the mounting frame, and the setting rack is located above the moving part.

[0012] Preferably, the installation hoisting mechanism further includes a second screw and a connecting block; the second screw is rotatably arranged on the setting rack and located on one side of the mounting frame; the connecting block is arranged outside the second screw.

[0013] The utility model has the beneficial effects compared with prior art:

[0014] 1. The utility model cooperates between sealing hole ring and anti-spill structure, so that workers can adjust adjusting plate according to specific needs of construction site, and operators can adjust adjusting plate individually and timely to adapt to different construction conditions and requirements, ensuring smooth construction process and improving construction efficiency.

[0015] 2. By setting a straight groove, this utility model allows the adjusting plate to be adjusted in angle and position along the positioning screw when the locking nut loses its locking on the positioning screw. This allows the adjusting plate to be flexibly adjusted as the position of the pipe section changes during hoisting and jacking operations.

[0016] 3. By setting up a hoisting mechanism, this utility model allows the installation frame to be lifted using hoisting tools after clamping, thereby driving the clamped sealing ring to be hoisted, which improves the stability of the hoisting process and increases construction efficiency. Attached Figure Description

[0017] Figure 1 This is a first-view three-dimensional structural diagram of a sealing structure for a pipe jacking opening according to this utility model.

[0018] Figure 2 This is a top view of a sealing structure for a pipe jacking opening according to this utility model.

[0019] Figure 3 This is a side view of a sealing structure for a pipe jacking opening according to this utility model.

[0020] Figure 4 yes Figure 1 Enlarged structural diagram at point A in the middle.

[0021] Figure 5 This is a three-dimensional structural diagram of an installation and hoisting mechanism for a sealing structure at the opening of a pipe jacking tunnel, according to this utility model.

[0022] Figure 6 yes Figure 5 Enlarged structural diagram at point B in the middle.

[0023] Figure 7 yes Figure 3 Enlarged structural diagram at point C.

[0024] The following are the labels in the diagram: 1. Sealing ring; 2. Reinforcing bar; 3. Overflow prevention structure; 31. Cord rubber sheet; 32. Adjusting plate; 33. Positioning screw; 34. Locking nut; 35. Straight groove; 4. Installation and hoisting mechanism; 41. Mounting frame; 42. Moving part; 43. Rotating block; 44. Clamping part; 45. First screw; 46. Setting frame; 47. Second screw; 48. Connecting block. Detailed Implementation

[0025] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0026] See Figures 1-4As shown in the figure, a plugging structure for a pipe jacking hole includes a sealing hole ring 1 and a reinforcing bar 2. The plugging structure for the pipe jacking hole further includes an anti-overflow structure 3 and a mounting and hoisting mechanism 4. The anti-overflow structure 3 is arranged on the top of the sealing hole ring 1. The anti-overflow structure 3 includes a rubberized fabric plate 31 capable of filling the gap between the sealing hole ring 1 and the hole. The anti-overflow structure 3 further includes an adjusting plate 32. The adjusting plate 32 has a plurality of adjusting plates 32 arranged on the sealing hole ring 1 respectively. The adjusting plate 32 is used to mount the rubberized fabric plate 31 on the top of the sealing hole ring 1 and adjust the position. The mounting and hoisting mechanism 4 is arranged outside the sealing hole ring 1. The mounting and hoisting mechanism 4 is used to fix the sealing hole ring 1 and hoist it subsequently.

[0027] Firstly, the rubberized fabric plate 31 is accurately placed on the sealing hole ring 1 to ensure that it is tightly attached to the sealing hole ring 1, so as to effectively block the gap. Then, the adjusting plate 32 is placed on the rubberized fabric plate 31. At this time, the main function of the adjusting plate 32 is to provide additional protection to prevent the rubberized fabric plate 31 from being damaged in the subsequent construction process. When the pipe jacking operation is performed, the adjusting plate 32 can be flexibly adjusted according to the change of the position of the pipe section. It is ensured that the adjusting plate 32 can maintain effective support and protection for the rubberized fabric plate 31 at different construction stages. The plurality of adjusting plates 32 can be adjusted individually. Not only the flexibility of construction is improved, but also it is ensured that the sealing performance of the rubberized fabric plate 31 is always kept in the best state. According to the specific needs of the construction site, the operator can adjust the adjusting plate 32 individually and timely to adapt to different construction conditions and requirements. It is ensured that the construction process is carried out smoothly and the construction efficiency is improved.

[0028] Referring to Figure 4 As shown in the figure, the anti-overflow structure 3 further includes a positioning screw 33 and a locking nut 34. The positioning screw 33 has a plurality of positioning screws 33 arranged on the top of the sealing hole ring 1 respectively. The locking nut 34 is arranged on the positioning screw 33 and is threadedly connected with the positioning screw 33. When the locking nut 34 is rotated, the locking nut 34 can abut against the adjusting plate 32.

[0029] When the position of the rubberized fabric plate 31 on the sealing hole ring 1 needs to be adjusted, the adjusting plate 32 is first placed on the positioning screw 33, and then the locking nut 34 is rotated to the outside of the positioning screw 33. At this time, the locking nut 34 can fix the adjusting plate 32 on the rubberized fabric plate 31. By reversing the rotation of the locking nut 34, the locking nut 34 can lose the locking of the positioning screw 33, so that the position of the adjusting plate 32 on the rubberized fabric plate 31 can be adjusted.

[0030] Referring to Figure 4As shown, the adjusting plate 32 is provided with a linear groove 35 for sliding of the positioning screw 33, and both ends of the linear groove 35 are half-circular in shape and fit the outer part of the positioning screw 33. When the position of the adjusting plate 32 needs to be changed, the locking nut 34 is rotated, at which time the locking nut 34 loses the locking state of the positioning screw 33, and then the adjusting plate 32 can be slid above the rubber sheet 31 along the positioning screw 33.

[0031] The linear groove 35 provided on the adjusting plate 32 can allow the locking nut 34 to lose the locking of the positioning screw 33, and adjust the angle and position of the adjusting plate 32 along the positioning screw 33, so that the adjusting plate 32 can be flexibly adjusted according to the change of the position of the pipe section during the lifting and jacking operation, and the adaptability and flexibility of the adjusting plate 32 during the operation are ensured.

[0032] Referring to Figures 3-6 As shown, the installation lifting mechanism 4 comprises an installation frame 41, a moving part 42, a rotating block 43 and a clamping part 44; the installation frame 41 is arranged outside the sealing hole ring 1; the moving part 42 is slidably arranged on both sides of the installation frame 41 and has a plurality of; the rotating block 43 is rotatably arranged on the moving part 42 and located on one side of the sealing hole ring 1; and the clamping part 44 is slidably arranged on the rotating block 43 and located above the sealing hole ring 1.

[0033] When the sealing hole ring 1 needs to be lifted, first, the installation frame 41 is placed outside the sealing hole ring 1, then the moving part 42 slides towards the sealing hole ring 1 until the moving part 42 drives the rotating block 43 and the clamping part 44 to contact the sealing hole ring 1, the rotating block 43 can freely rotate along the moving part 42 to adjust the rotation of the rotating block 43. Then the clamping part 44 is lowered to clamp the sealing hole ring 1, after clamping, the installation frame 41 can be lifted by using a lifting tool to drive the clamped sealing hole ring 1 to be lifted, thereby improving the construction efficiency. After clamping, the horizontal plane of the installation frame 41 is higher than that of the clamped sealing hole ring 1. After lifting, the sealing hole ring 1 is attached to the hole, and then the installation frame 41 and the clamped sealing hole ring 1 are disassembled, which does not affect the subsequent pouring of the sealing hole ring 1.

[0034] Referring to Figures 3-6 As shown, the installation lifting mechanism 4 further comprises a first screw 45 and a setting frame 46; the first screw 45 is rotatably arranged on the top of the moving part 42, and the first screw 45 is threadedly connected with the clamping part 44; and the setting frame 46 is arranged above the installation frame 41 and above the moving part 42.

[0035] When the clamping part 44 needs to be driven to move, the first screw 45 is rotated to lower or raise the clamping part 44, so as to adapt to clamping of sealing hole rings 1 with different thicknesses.

[0036] Referring to Figure 6 and Figure 7 As shown in the figure, the mounting hoisting mechanism 4 further comprises a second screw rod 47 and a connecting block 48; the second screw rod 47 is rotationally arranged on the setting frame 46 and located at one side of the mounting frame 41; the connecting block 48 is arranged outside the second screw rod 47.

[0037] The connecting block 48 is fixedly connected with the moving part 42. When it is needed to adjust the position of the moving part 42, the second screw rod 47 is driven to rotate, and the second screw rod 47 can drive the connecting block 48 to drive the moving part 42 to adjust the position along the gap-fitted mounting frame 41. After hoisting is completed, the first screw rod 45 is reversely rotated, the clamping part 44 loses the clamping of the sealing hole ring 1, and then the mounting frame 41 is taken down, so that the sealing hole ring 1 and the cord rubber plate 31 can be poured.

[0038] The working principle is as follows: firstly, the cord rubber plate 31 is accurately placed on the sealing hole ring 1, and the cord rubber plate 31 is ensured to be tightly fitted to achieve the purpose of effectively plugging the gap. Then, the adjusting plate 32 is placed on the cord rubber plate 31, and the main function of the adjusting plate 32 is to provide protection to prevent the cord rubber plate 31 from being damaged in the subsequent construction process. After the adjusting plate 32 is placed on the positioning screw 33, the locking nut 34 is rotated to the outside of the positioning screw 33, so that the adjusting plate 32 is fixed on the cord rubber plate 31. By reversely rotating the locking nut 34, the locking of the locking nut 34 on the positioning screw 33 is released, and then the position of the adjusting plate 32 on the cord rubber plate 31 is adjusted. The straight slot 35 formed on the adjusting plate 32 allows the angle and position of the adjusting plate 32 to be adjusted along the positioning screw 33 when the locking nut 34 loses the locking on the positioning screw 33. This design ensures that the adjusting plate 32 can be flexibly adjusted along with the change of the position of the pipe section during the hoisting and jacking operation, and the adaptability and flexibility during the operation process are maintained. When the sealing hole ring 1 needs to be hoisted, the mounting frame 41 is first placed outside the sealing hole ring 1, and then the moving part 42 slides towards the sealing hole ring 1 until the moving part 42 drives the rotating block 43 and the clamping part 44 to contact the sealing hole ring 1. The rotating block 43 can be freely rotated along the moving part 42 to realize the rotation adjustment. Then, the clamping part 44 is lowered to clamp the sealing hole ring 1, and after clamping, the hoisting tool can be used to hoist the mounting frame 41 and the clamped sealing hole ring 1, thereby improving the construction efficiency. If the clamping part 44 needs to be driven to move, the first screw 45 is rotated to realize the downward or upward movement of the clamping part 44, so as to adapt to the clamping of sealing hole rings 1 with different thicknesses. The connecting block 48 is fixedly connected with the moving part 42, and when the position of the moving part 42 needs to be adjusted, the second screw 47 is driven to rotate, so as to drive the connecting block 48 to drive the moving part 42 to adjust the position along the gap-fitted mounting frame 41. After the hoisting is completed, the first screw 45 is reversely rotated to release the clamping of the clamping part 44 on the sealing hole ring 1, and then the mounting frame 41 is removed, so that the sealing hole ring 1 and the cord rubber plate 31 can be poured.

[0039] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A closure structure for a pipe jacking opening, comprising a sealing collar (1) and reinforcement (2), characterized in that, The plugging structure of the pipe jacking hole further comprises an anti-overflow structure (3) and a mounting and hoisting mechanism (4); The anti-overflow structure (3) is arranged on the top of the sealing hole ring (1), and comprises a cord rubber plate (31) capable of filling the gap between the sealing hole ring (1) and the hole. The anti-overflow structure (3) further comprises an adjusting plate (32), which has a plurality of adjusting plates (32) arranged on the sealing hole ring (1) respectively, and is used for mounting the cord rubber plate (31) on the top of the sealing hole ring (1) and adjusting the position. The mounting and hoisting mechanism (4) is arranged outside the sealing hole ring (1), and is used for fixing the sealing hole ring (1) and subsequent hoisting.

2. A closure structure for a pipe jacking opening according to claim 1, wherein, The anti-overflow structure (3) further comprises a positioning screw (33) and a locking nut (34); the positioning screw (33) has a plurality of positioning screws (33) arranged on the top of the sealing hole ring (1) respectively; the locking nut (34) is arranged on the positioning screw (33), and the locking nut (34) is in threaded connection with the positioning screw (33); when the locking nut (34) rotates, the locking nut (34) can abut against the adjusting plate (32).

3. A closure structure for a pipe jacking opening according to claim 2, wherein, The adjusting plate (32) is provided with a straight slot (35) for sliding of the positioning screw (33), and both ends of the straight slot (35) are in half circular shape in abutment with the outside of the positioning screw (33).

4. A closure structure for a pipe jacking opening according to claim 1, wherein, The mounting and hoisting mechanism (4) comprises a mounting frame (41), a moving part (42), a rotating block (43) and a clamping part (44); the mounting frame (41) is arranged outside the sealing hole ring (1); the moving part (42) is slidably arranged on both sides of the mounting frame (41) and has a plurality of moving parts (42); the rotating block (43) is rotatably arranged on the moving part (42) and located on one side of the sealing hole ring (1); the clamping part (44) is slidably arranged on the rotating block (43) and located above the sealing hole ring (1).

5. A closure structure for a pipe jacking opening according to claim 4, wherein, The mounting and hoisting mechanism (4) further comprises a first screw (45) and a setting rack (46); the first screw (45) is rotatably arranged on the top of the moving part (42), and the first screw (45) is in threaded connection with the clamping part (44); the setting rack (46) is arranged above the mounting frame (41), and the setting rack (46) is located above the moving part (42).

6. A closure structure for a pipe jacking opening according to claim 5, wherein, The mounting and hoisting mechanism (4) further comprises a second screw (47) and a connecting block (48); the second screw (47) is rotatably arranged on the setting rack (46) and located on one side of the mounting frame (41); the connecting block (48) is arranged outside the second screw (47).

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