Rear-end self-plugging grouting pipe for grouting construction
By designing a sealing device on the grouting pipe and using cement slurry to fill and squeeze the airbag expansion, the problem that the existing rubber ring cannot adapt to the gaps of different sizes is solved, and the automatic sealing of the grouting pipe is achieved, which improves the Construction efficiency and convenience.
Patent Information
- Application Number
- CN202421094470.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During grouting construction, the volume of the existing rubber ring is fixed and cannot adapt to gaps of different sizes, resulting in poor sealing effect and low construction efficiency.
A rear-end self-sealing grouting pipe is designed, and the sealing device includes a first ring, an airbag and a second ring. The gap is filled with cement slurry and the airbag is squeezed to expand, so as to achieve automatic sealing and adapt to different sizes. The gap.
It improves the convenience and efficiency of gap sealing, reduces the difficulties caused by gaps of different sizes, and enhances the automation and efficiency of construction.
Smart Images
Figure CN222275451U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grouting, in particular to a rear end self-sealing grouting pipe used for grouting construction. Background Art
[0002] With the rapid development of my country's economy, the urbanization process has accelerated, which has promoted the development of urban underground space projects. However, the geological conditions faced in the construction process have become more and more complex, such as fault fracture zones, water-rich sand layers, and water-rich fractured rock masses. In order to ensure the safe and effective construction process, grouting, water stopping and reinforcement are indispensable construction contents in the entire construction process.
[0003] During the grouting construction process, a higher grouting pressure is sometimes required. In order to ensure the smooth progress of grouting, personnel usually insert the grouting pipe into the dug hole, then pour the slurry into the grouting pipe and discharge it through multiple discharge holes, and then put a rubber ring at the appropriate position at the rear end of the grouting pipe to seal the gap between the outer wall of the grouting pipe and the hole to prevent groundwater from flowing out and affecting the pouring of concrete bored piles. However, due to the fixed volume of the rubber ring, the volume of the rubber ring may not match the gap size, resulting in the rubber ring being unable to fill gaps of different sizes, affecting the sealing effect and construction efficiency. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a rear end self-sealing grouting pipe for grouting construction.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rear-end self-sealing grouting pipe for grouting construction, comprising a pipe body, a plurality of discharge holes are opened on the surface of the pipe body, a sealing device is arranged on one side of the pipe body, a protective device is arranged on one side of the pipe body, the sealing device comprises a first circular ring, the first circular ring is sleeved on the surface of the pipe body, an airbag is fixedly connected to one side of the first circular ring, a second circular ring is fixedly connected to the side of the airbag away from the first circular ring, the airbag and the second circular ring are both sleeved on the surface of the pipe body, a first circular hole is opened on one side of the first circular ring, a latch is slidably connected to the inner wall of the first circular hole, a second circular hole is opened on one side of the pipe body, and the surface size and shape of the latch are adapted to the size and shape of the inner wall of the second circular hole.
[0006] The effect achieved by the above-mentioned components is as follows: by setting up the blocking device, first manually move the first ring, so that the first ring drives the airbag and the second ring to move, so that the first ring, the airbag and the second ring move to a position where they are sleeved on the surface of the tube body; when the first ring moves to a position where the inner wall of the first circular hole coincides with the inner wall of the second circular hole, manually move the latch so that the latch moves to a position where it is completely inserted into the first circular hole and the second circular hole to fix the first ring; at this time, cement slurry is injected into the tube body so that the cement slurry is discharged through a plurality of discharge holes, so that the cement slurry is blocked on the tube body. The gap between the tube body and the hole is filled, so that the cement slurry fills the gap and squeezes the second ring at the same time, so that the second ring moves along the surface of the tube body, so that the second ring squeezes the gas inside the airbag to make the airbag expand outward, and when the airbag expands to the position where the surface squeezes the inner wall of the hole outside, the gap between the tube body and the inner wall of the hole is sealed, so that personnel can automatically seal the gap between the tube body and the hole by squeezing and expanding the airbag with mud, reducing the difficulty of sealing caused by gaps of different sizes and improving the convenience and efficiency of gap sealing for personnel.
[0007] Preferably, one end of the latch is fixedly connected to a curved plate, and the surface of the curved plate is larger than the first circular hole.
[0008] The effect achieved by the above components is: by setting the arc plate, the arc plate can increase the contact area of the bolt, so that personnel can manually pull the arc plate to drive the bolt to move quickly, thereby improving the convenience and stability of manually moving the bolt.
[0009] Preferably, a rubber ring is fixedly connected to the surface of the airbag, and the rubber ring is fixed at the middle position of the airbag.
[0010] The effect achieved by the above components is: by arranging the rubber ring, the rubber ring can be preferentially fitted with the inner wall of the hole, thereby reducing the wear of the inner wall of the hole on the airbag and increasing the service life of the airbag.
[0011] Preferably, an annular plate is fixedly connected to one side of the second circular ring, and the size and shape of the inner wall of the annular plate are matched with the size and shape of the inner wall of the second circular ring.
[0012] The effect achieved by the above components is: by setting the annular plate, the annular plate can increase the contact area between the second ring and the cement slurry, so that the cement slurry can drive the second ring to move by squeezing the annular plate, thereby improving the squeezing effect of the cement slurry on the second ring when filling the gap.
[0013] Preferably, a sealing ring is fixedly connected to one side of the annular plate, and the sealing ring is fixed at an opening of the inner wall of the annular plate.
[0014] Compared with the prior art, the advantages and positive effects of the utility model are:
[0015] In the utility model, by providing a sealing device, personnel can automatically seal the gap between the tube body and the hole by squeezing and expanding the airbag with mud, thereby reducing the difficulty of sealing gaps of different sizes and improving the convenience and efficiency of gap sealing by personnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0017] Figure 2 It is a schematic diagram of the partial structure of the airbag of the utility model;
[0018] Figure 3 It is a schematic diagram of the partial structure of the second circular hole of the utility model;
[0019] Legend: 1. Tube body; 2. Discharge hole; 3. Sealing device; 31. First circular ring; 32. Air bag; 33. Second circular ring; 34. First circular hole; 35. Latch; 36. Arc plate; 37. Rubber ring; 38. Ring plate; 39. Sealing ring; 310. Second circular hole. DETAILED DESCRIPTION
[0020] Reference Figure 1-3As shown, this embodiment discloses a rear-end self-sealing grouting pipe for grouting construction, including a pipe body 1, a plurality of discharge holes 2 are opened on the surface of the pipe body 1, a sealing device 3 is arranged on one side of the pipe body 1, a protective device 4 is arranged on one side of the pipe body 1, the sealing device 3 includes a first ring 31, the first ring 31 is sleeved on the surface of the pipe body 1, an airbag 32 is fixedly connected to one side of the first ring 31, a second ring 33 is fixedly connected to the side of the airbag 32 away from the first ring 31, and the airbag 32 and the second ring 33 are both The first circular ring 31 is sleeved on the surface of the tube body 1, a first circular hole 34 is opened on one side of the first circular hole 34, and a plug 35 is slidably connected to the inner wall of the first circular hole 34. A second circular hole 310 is opened on one side of the tube body 1, and the surface size and shape of the plug 35 are adapted to the size and shape of the inner wall of the second circular hole 310. By setting the blocking device 3, the first circular ring 31 is manually moved first, so that the first circular ring 31 drives the airbag 32 and the second circular ring 33 to move, so that the first circular ring 31, the airbag 32 and the second circular ring 33 move. The first ring 31 is moved to a position on the surface of the tube body 1, and when the first ring 31 moves to a position where the inner wall of the first circular hole 34 coincides with the inner wall of the second circular hole 310, the pin 35 is manually moved so that the pin 35 moves to a position where it is completely inserted into the first circular hole 34 and the second circular hole 310 to fix the first ring 31. At this time, cement slurry is injected into the tube body 1 so that the cement slurry is discharged through the multiple discharge holes 2, so that the cement slurry fills the gap between the tube body 1 and the hole, so that the cement slurry fills the gap and squeezes the first circular hole 310 at the same time. The second ring 33 allows the second ring 33 to move along the surface of the tube body 1, so that the second ring 33 squeezes the gas inside the airbag 32 to make the airbag 32 expand outward. When the airbag 32 expands to the position where the surface squeezes the inner wall of the external hole, the gap between the tube body 1 and the inner wall of the hole is sealed, so that personnel can automatically seal the gap between the tube body 1 and the hole by squeezing and expanding the airbag 32 with mud, reducing the difficulty of sealing gaps of different sizes and improving the convenience and efficiency of gap sealing for personnel.
[0021] Reference Figure 2 and Figure 3 As shown, the present embodiment discloses that one end of the latch 35 is fixedly connected with an arc plate 36, and the surface of the arc plate 36 is larger than the first circular hole 34. By providing the arc plate 36, the arc plate 36 can increase the contact area of the latch 35, so that a person can drive the latch 35 to move quickly by manually pulling the arc plate 36, thereby improving the convenience and stability of manually moving the latch 35. A rubber ring is fixedly connected to the surface of the airbag 32, and the rubber ring is fixed in the middle position of the airbag 32. By providing the rubber ring, the rubber ring can be preferentially fitted with the inner wall of the hole, thereby reducing the wear of the inner wall of the hole on the airbag 32 and improving the service life of the airbag 32.
[0022] Reference Figure 2 and Figure 3As shown, the present embodiment discloses that a ring plate 38 is fixedly connected to one side of the second circular ring 33, and the size and shape of the inner wall of the ring plate 38 are adapted to the size and shape of the inner wall of the second circular ring 33. By setting the ring plate 38, the ring plate 38 can increase the contact area between the second circular ring 33 and the cement slurry, so that the cement slurry can drive the second circular ring 33 to move by squeezing the ring plate 38, thereby improving the squeezing effect of the cement slurry on the second circular ring 33 when filling the gap. A sealing ring 39 is fixedly connected to one side of the ring plate 38, and the sealing ring 39 is fixed at the inner wall opening of the ring plate 38. By setting the sealing ring 39, the sealing ring 39 can seal the gap between the inner wall of the ring plate 38 and the surface of the tube body 1, thereby reducing the situation where cement slurry enters the airbag 32 through the gap.
[0023] Working principle: First, manually move the first ring 31 so that the first ring 31 drives the airbag 32 and the second ring 33 to move, so that the first ring 31, the airbag 32 and the second ring 33 move to the position of being sleeved on the surface of the tube body 1. When the first ring 31 moves to the position where the inner wall of the first circular hole 34 and the inner wall of the second circular hole 310 coincide, manually move the arc plate 36 so that the arc plate 36 drives the latch 35 to move, so that the latch 35 moves to a position where it is completely inserted into the first circular hole 34 and the second circular hole 310. The first circular ring 31 is fixed, and cement slurry is injected into the tube body 1 at this time, so that the cement slurry is discharged through multiple discharge holes 2, so that the cement slurry fills the gap between the tube body 1 and the hole, and the cement slurry squeezes the second circular ring 33 while filling the gap, so that the second circular ring 33 moves along the surface of the tube body 1, so that the second circular ring 33 squeezes the internal gas of the airbag 32 to make the airbag 32 expand outward, and when the airbag 32 expands to the position where the surface squeezes the inner wall of the outside hole, the gap between the tube body 1 and the inner wall of the hole is automatically blocked.
[0024] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a welding connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.
Claims
1. A rear end self-sealing grouting pipe for grouting construction, comprising a pipe body (1), characterized in that: The surface of the tube body (1) is provided with a plurality of discharge holes (2); a blocking device (3) is provided on one side of the tube body (1); a protective device (4) is provided on one side of the tube body (1); the blocking device (3) comprises a first circular ring (31); the first circular ring (31) is sleeved on the surface of the tube body (1); a gas bag (32) is fixedly connected to one side of the first circular ring (31); a second circular ring (33) is fixedly connected to the side of the gas bag (32) away from the first circular ring (31); the gas bag (32) and the second circular ring (33) are both sleeved on the surface of the tube body (1); a first circular hole (34) is provided on one side of the first circular ring (31); a plug (35) is slidably connected to the inner wall of the first circular hole (34); a second circular hole (310) is provided on one side of the tube body (1); the surface size and shape of the plug (35) are adapted to the size and shape of the inner wall of the second circular hole (310).
2. The rear end self-sealing grouting pipe for grouting construction according to claim 1 is characterized in that: One end of the latch pin (35) is fixedly connected to an arc-shaped plate (36), and the surface of the arc-shaped plate (36) is larger than the first circular hole (34).
3. The rear end self-sealing grouting pipe for grouting construction according to claim 1 is characterized in that: A rubber ring is fixedly connected to the surface of the airbag (32), and the rubber ring is fixed at the middle position of the airbag (32).
4. The rear end self-sealing grouting pipe for grouting construction according to claim 1 is characterized in that: An annular plate (38) is fixedly connected to one side of the second circular ring (33), and the size and shape of the inner wall of the annular plate (38) are adapted to the size and shape of the inner wall of the second circular ring (33).
5. The rear end self-sealing grouting pipe for grouting construction according to claim 4 is characterized in that: A sealing ring (39) is fixedly connected to one side of the annular plate (38), and the sealing ring (39) is fixed at an opening of the inner wall of the annular plate (38).