Pipe orifice plugging device and plugging method for embedded pipe

Abstract

The invention relates to the technical field of wind power plant fan foundations, in particular to an embedded pipe orifice plugging device which comprises a deformation part inserted into an embedded pipe orifice. An opening is formed in the front end of the deformation piece, and an external expansion piece for driving the deformation piece to deform is arranged in the opening; wherein a fixing part is arranged at the front end of the deformation part, and a driving part for driving the external expansion part to deform is arranged between the fixing part and the external expansion part. By adopting a deformation matching mode of the deformation part and the external expansion part, external expansion deformation is generated at the pipe orifice of the embedded pipe; a plurality of protruding rings are arranged on the outer side of the deformation piece, the contact sealing performance of the deformation piece and the inner wall of the embedded pipe can be guaranteed, the blocking effect is improved, only the driving piece needs to be operated during blocking, operation is easy and convenient, and the sealing effect is good. And meanwhile, the device can be used in a reciprocating mode after being detached, and the plugging applicability is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine foundations in wind farms, and in particular to a pre-buried pipe orifice plugging device and a plugging method. Background Art

[0002] In new energy wind power projects, large-volume concrete structures such as wind turbine foundations are key components, and their volumes are usually 500m3 to 1000m3 or even larger. These foundations support wind turbines, and the electricity generated is transmitted to the box-type transformer equipment through cables, and then to the national grid. In order to ensure the rationality and integrity of the force on the wind turbine tower, the cables are usually transmitted to the box-type transformer equipment through pipes pre-buried in the wind turbine foundation. At the same time, in order to meet the internal drainage requirements of the wind turbine, drainage pipes need to be buried when pouring the wind turbine foundation.

[0003] However, these pre-buried pipes interfere with the integrity and flatness of the wind turbine foundation formwork, as well as the foundation formwork and pouring during construction. If the pre-buried pipe openings are not properly sealed, concrete or debris may enter the pipe body, causing pipe blockage. This will make it difficult to thread cables through the pipe and drain water, seriously threatening the overall safety of the wind turbine and increasing the cost of construction rework.

[0004] At present, there are defects in the method of plugging the pre-buried pipe opening. For example, when the plastic woven bag is used to plug the pre-buried pipe opening, the plastic bag is not strong enough and is easily damaged under the action of external force, causing concrete to flow into and block the pipe. The method of plugging the pre-buried pipe opening with linen fabric may result in loose concrete pouring around the pipe opening, causing quality problems such as honeycombs, rough surfaces, and exposed steel bars in the foundation surface.

[0005] Based on this, in order to further improve the plugging effect of the embedded pipe, we propose a plugging device and a plugging method for the embedded pipe orifice. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art that when a plastic woven bag is used to wrap and seal the pipe opening of a pre-buried pipe, the plastic bag has insufficient strength and toughness and is easily damaged under the action of external force, and a pre-buried pipe opening sealing device and sealing method are proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A pre-buried pipe orifice plugging device is designed, comprising a deformable member inserted into the pre-buried pipe orifice;

[0009] The front end of the deformable member has an opening, and an outer expansion member for driving the deformable member to deform is arranged in the opening;

[0010] The front end of the deformable member has a fixing portion, and a driving member for driving the outer expansion member to deform is arranged between the fixing portion and the outer expansion member, and one end of the driving member is located outside the opening.

[0011] Furthermore, the deformable member includes a rubber sleeve, and the fixing portion is a conical structure and is formed at the end of the rubber sleeve.

[0012] Furthermore, a plurality of raised circles are formed at intervals on the outer side of the rubber sleeve, and a stop ring is fixedly installed at the front end of the rubber sleeve, and the stop ring is used to stop at the opening edge of the embedded pipe.

[0013] Furthermore, the external expansion member includes a pipe fitting, the pipe fitting is tightened on the inner side of the rubber sleeve, and a plurality of deformation slits are provided at intervals on the outer side of the pipe fitting.

[0014] Furthermore, a plurality of the deformation slits are sequentially and spaced apart at both ends of the pipe, and a resistance portion is also provided on the inner side of the pipe.

[0015] Furthermore, the driving member includes a rod, a connecting disk is fixedly mounted on one end of the rod, and the connecting disk is fixed inside the fixing portion;

[0016] A fixed cone disk is fixedly installed on the outside of the rod and a movable cone disk is slidably connected. The fixed cone disk and the movable cone disk are respectively inserted into the two ends of the pipe and abut against the abutment portion. A pushing component for driving the movable cone disk to move is provided at the end of the rod.

[0017] Furthermore, a stopper is fixedly connected to the outer side of the rod, and a spring is fixedly connected between the stopper and the movable cone disk.

[0018] Furthermore, the pushing component includes a shaft rod fixedly connected to the end of the rod member, and a handle is eccentrically rotatably connected to the outer side of the shaft rod;

[0019] One side of the handle moves against the movable cone.

[0020] Furthermore, a slot is provided on the outer side of the shaft rod, and an L-shaped rod is movably inserted into the side of the handle through a compression spring, and one end of the L-shaped rod is clamped in the slot.

[0021] In addition, the present invention also proposes a method for plugging the pipe opening of a pre-buried pipe, using the above-mentioned device, and the specific method includes the following steps:

[0022] Assembling the outer expansion member and the driving member inside the deformation member;

[0023] The deformable member is placed at the pipe opening of the embedded pipe. After the positioning is completed, the outward expansion member is driven by the driving member to expand outward to deform, so that the deformable member expands outward on the inner side of the embedded pipe to achieve sealing at the pipe opening.

[0024] The present invention proposes a pre-buried pipe orifice sealing device and a sealing method, and the beneficial effects are: in the present invention, a deformation matching mode of a deformable part and an outward expansion part is adopted to generate an outward expansion deformation at the pipe orifice of the pre-buried pipe, so that the deformable part can fit tightly inside the pipe orifice to complete the sealing of the pipe orifice; a plurality of raised rings are arranged on the outer side of the deformable part to ensure the contact sealing between the deformable part and the inner wall of the pre-buried pipe, thereby improving the sealing effect; when sealing, only the driving part needs to be operated, and the operation is simple and convenient; at the same time, the device of the present invention can be used reciprocally after disassembly, which further improves the applicability of the sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The three-dimensional Figure 1 ;

[0026] Figure 2 The three-dimensional Figure 2 ;

[0027] Figure 3 It is an explosion schematic diagram of the present invention;

[0028] Figure 4 It is a schematic diagram of the spring structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the embedded pipe of the present invention;

[0030] Figure 6 It is a schematic diagram of the handle structure of the present invention.

[0031] In the figure: 1. embedded pipe; 2. deformation member; 21. fixing part; 22. rubber sleeve; 23. raised ring; 24. stop ring; 3. external expansion member; 31. pipe fitting; 32. deformation seam; 33. interference part; 4. driving member; 41. rod; 42. connecting plate; 43. fixed cone plate; 44. movable cone plate; 45. stop part; 46. spring; 47. shaft rod; 471. slot; 48. handle; 481. L-shaped rod. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Reference Figure 1-6An embodiment of the present invention discloses a device for plugging the orifice of a pre-buried pipe. Specifically, the device comprises a deformable member 2 inserted into the orifice of a pre-buried pipe 1;

[0034] The front end of the deformable member 2 has an opening, and the opening is provided with an outer expansion member 3 for driving the deformable member 2 to deform;

[0035] The front end of the deformable member 2 has a fixing portion 21 , and a driving member 4 for driving the outer expansion member 3 to deform is disposed between the fixing portion 21 and the outer expansion member 3 , and one end of the driving member 4 is located outside the opening.

[0036] In some embodiments, the deformable member 2 in the present invention includes a rubber sleeve 22 , and the rubber sleeve 22 can be a silicone sleeve. The fixing portion 21 is a conical structure and is formed at the end of the rubber sleeve 22 .

[0037] On the basis of the above embodiment, in order to achieve the contact sealing between the rubber sleeve 22 and the inner wall of the embedded pipe 1 to improve the sealing effect, the outer side of the rubber sleeve 22 in this embodiment is formed with a plurality of raised circles 23 at intervals, and the raised circles 23 can be integrally formed with the rubber sleeve 22. The plurality of raised circles 23 are used to contact the inner wall of the embedded pipe 1 to improve the sealing effect of the pipe opening. Furthermore, the cross section of the raised circle 23 in this embodiment can be set to a triangular structure or a semicircular structure, which can be selected according to the needs of the technicians, and will not be described in detail here.

[0038] In addition, in the present invention, a stop ring 24 is fixedly installed at the front end of the rubber sleeve 22, and the stop ring 24 is used to stop at the opening edge of the embedded pipe 1. That is, in the present invention, a stop ring 24 is set at the front end of the rubber sleeve 22, which is used to stop at the pipe mouth of the embedded pipe 1. In this way, the installation of the rubber sleeve 22 can be positioned to facilitate the removal operation of the rubber sleeve 22.

[0039] In some embodiments, the external expansion member 3 in the present invention includes a pipe 31, which is tightened on the inner side of the rubber sleeve 22, and a plurality of deformation slits 32 are provided at intervals on the outer side of the pipe 31, and the deformation slits 32 are used to provide the pipe 31 with deformation ability.

[0040] A plurality of deformation slits 32 are sequentially spaced apart at both ends of the pipe 31 . A resistance portion 33 is also provided on the inner side of the pipe 31 . The resistance portion 33 is used to contact the driving member 4 first, so as to control the deformation and outward expansion of the entire pipe 31 , so as to further drive the rubber sleeve 22 to deform.

[0041] Specifically, in the embodiment of the present invention, the driving member 4 includes a rod 41, and a connecting plate 42 is fixedly installed at one end of the rod 41, and the connecting plate 42 is fixed inside the fixing portion 21, that is, in the present invention, the connecting plate 42 is connected and fixed to the fixing portion 21 to achieve connection support for the rod 41 and provide a force point;

[0042] A fixed cone disk 43 and a movable cone disk 44 are fixedly installed on the outer side of the rod 41 and are slidably connected. The fixed cone disk 43 and the movable cone disk 44 are respectively inserted into the two ends of the pipe 31 and abut against the abutting portion 33. A pushing component for driving the movable cone disk 44 to move is provided at the end of the rod 41.

[0043] That is to say, the present invention adopts the design of fixed cone disk 43 and movable cone disk 44. Since the fixed cone disk 43 and movable cone disk 44 are arranged at the two ends of the pipe fitting 31, during the plugging operation, the movable cone disk 44 can be controlled to move by the pushing component. At this time, the movable cone disk 44 abuts against the abutment portion 33 on the inner side of the end of the pipe fitting 31. At the same time, when the pipe fitting 31 moves a small distance inside the rubber sleeve 22, its two ends respectively abut against the fixed cone disk 43 and the movable cone disk 44, so that the two ends are subjected to force to drive the pipe fitting 31 to deform, thereby further causing the rubber sleeve 22 to expand outward, so that it is sealed and fixed at the pipe mouth of the embedded pipe 1.

[0044] It should be noted that, in order to fix the initial position of the movable cone disk 44 in the present invention, a stopper 45 is fixedly connected to the outer side of the rod 41 in this embodiment, and a spring 46 is fixedly connected between the stopper 45 and the movable cone disk 44, that is, the elastic support of the spring 46 is used to locate the initial position of the movable cone disk 44. Of course, when the movable cone disk 44 is squeezed, the spring 46 will shrink, and when the rubber sleeve 22 is removed, the spring 46 will also provide a reset driving force for the movable cone disk 44.

[0045] On the basis of the above embodiment, the pushing component in the present invention comprises a shaft 47 fixedly connected to the end of the rod 41, and a handle 48 is eccentrically rotatably connected to the outer side of the shaft 47;

[0046] One side of the handle 48 abuts against the movable cone disk 44 for movement. That is, since the handle 48 is eccentrically designed, the rotation radius of its end portion changes. By means of the change in its radius, it abuts against the movable cone disk 44, thereby driving the outward expansion deformation of the entire rubber sleeve 22.

[0047] Preferably, in order to lock the fixed position of the handle 48 in the present invention, a slot 471 is provided on the outer side of the shaft rod 47 in this embodiment, and an L-shaped rod 481 is movably inserted into the side of the handle 48 through a compression spring, and one end of the L-shaped rod 481 is clamped in the inside of the slot 471. It should be noted that in the present invention, a socket is provided on the side of the handle 48, and an L-shaped rod 481 is movably connected in the socket through a compression spring. When the handle 48 is rotated, the compression spring will pull the L-shaped rod 481 to move inward until the handle 48 pushes and locks the movable cone disk 44. At this time, one end of the L-shaped rod 481 is clamped in the slot 471, so as to complete the position locking of the handle 48 to avoid the possibility of accidentally touching the handle 48 during the blocking process, which may lead to the failure of the blocking.

[0048] In addition, the present invention also proposes a method for plugging the pipe opening of a pre-buried pipe, using the above-mentioned device, and the specific method includes the following steps:

[0049] Assemble the outer expansion member 3 and the driving member 4 inside the deformation member 2;

[0050] The deformable member 2 is placed at the pipe opening of the embedded pipe 1. After positioning is completed, the driving member 4 drives the outward expansion member 3 to expand and deform outward, so that the deformable member 2 expands outward on the inner side of the embedded pipe 1 to achieve sealing at the pipe opening.

[0051] In summary, the present invention adopts a deformation coordination mode of the deformable member 2 and the outward expansion member 3 to generate an outward expansion deformation at the pipe mouth of the embedded pipe 1, so that the deformable member 2 can fit tightly inside the pipe mouth to complete the blocking of the pipe mouth. A plurality of raised rings 23 are provided on the outer side of the deformable member 2 to ensure the contact sealing between the deformable member 2 and the inner wall of the embedded pipe 1, thereby improving the blocking effect. When blocking, only the driving member 4 needs to be operated, and the operation is simple and convenient. At the same time, the device of the present invention can be used reciprocally after disassembly, which further improves the applicability of blocking.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pre-buried pipe orifice plugging device, characterized in that: It comprises a deformation member (2) inserted into the pipe opening of the embedded pipe (1); The front end of the deformable member (2) has an opening, and an outer expansion member (3) is arranged in the opening to drive the deformable member (2) to deform; The front end of the deformable member (2) has a fixing portion (21), and a driving member (4) for driving the external expansion member (3) to deform is arranged between the fixing portion (21) and the external expansion member (3), and one end of the driving member (4) is located outside the opening.

2. A pre-buried pipe orifice plugging device according to claim 1, characterized in that: The deformable member (2) comprises a rubber sleeve (22), and the fixing portion (21) is a conical structure and is formed at the end of the rubber sleeve (22).

3. A pre-buried pipe orifice plugging device according to claim 2, characterized in that: A plurality of raised rings (23) are formed at intervals on the outer side of the rubber sleeve (22), and a stop ring (24) is fixedly installed at the front end of the rubber sleeve (22), and the stop ring (24) is used to stop at the opening edge of the embedded pipe (1).

4. The embedded pipe orifice plugging device according to claim 2, characterized in that: The external expansion member (3) comprises a pipe member (31), the pipe member (31) is stretched tight on the inner side of the rubber sleeve (22), and a plurality of deformation slits (32) are provided at intervals on the outer side of the pipe member (31).

5. The embedded pipe orifice plugging device according to claim 4, characterized in that: A plurality of the deformation slits (32) are sequentially and spaced apart and distributed at both ends of the pipe (31), and a resistance portion (33) is also provided on the inner side of the pipe (31).

6. The embedded pipe orifice plugging device according to claim 5, characterized in that: The driving member (4) comprises a rod (41), a connecting disk (42) is fixedly mounted on one end of the rod (41), and the connecting disk (42) is fixed inside the fixing portion (21); A fixed cone disk (43) is fixedly mounted on the outer side of the rod (41) and a movable cone disk (44) is slidably connected thereto. The fixed cone disk (43) and the movable cone disk (44) are respectively plugged into the two ends of the pipe (31) and abut against the abutting portion (33). A pushing component for driving the movable cone disk (44) to move is provided at the end of the rod (41).

7. The embedded pipe orifice plugging device according to claim 6, characterized in that: A stopper (45) is fixedly connected to the outer side of the rod (41), and a spring (46) is fixedly connected between the stopper (45) and the movable cone disk (44).

8. The embedded pipe orifice plugging device according to claim 6, characterized in that: The pushing component comprises a shaft (47) fixedly connected to the end of the rod (41), and a handle (48) is eccentrically rotatably connected to the outer side of the shaft (47); One side of the handle (48) moves against the movable cone (44).

9. The embedded pipe orifice plugging device according to claim 8, characterized in that: A clamping groove (471) is provided on the outer side of the shaft rod (47), and an L-shaped rod (481) is movably inserted into the side of the handle (48) through a compression spring, and one end of the L-shaped rod (481) is clamped inside the clamping groove (471).

10. A method for plugging an orifice of a pre-buried pipe, using the device according to any one of claims 1 to 9, characterized in that: The steps include: Assembling the outer expansion member (3) and the driving member (4) inside the deformable member (2); The deformable member (2) is placed at the pipe mouth of the embedded pipe (1). After the positioning is completed, the driving member (4) drives the outward expansion member (3) to expand outward and deform, so that the deformable member (2) expands outward on the inner side of the embedded pipe (1) to achieve sealing at the pipe mouth.

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