CN111472350A - Gas pushing and sealing device of immersed tube cast-in-place pile machine - Google Patents
Gas pushing and sealing device of immersed tube cast-in-place pile machine Download PDFInfo
- Publication number
- CN111472350A CN111472350A CN202010453583.9A CN202010453583A CN111472350A CN 111472350 A CN111472350 A CN 111472350A CN 202010453583 A CN202010453583 A CN 202010453583A CN 111472350 A CN111472350 A CN 111472350A
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- valve
- sealing device
- cover plate
- immersed tube
- control mechanism
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a gas pushing and sealing device of a immersed tube pile pouring machine, which comprises a valve body, a cover plate, a control mechanism and a gas pressurizing mechanism, wherein a valve cavity is arranged in the valve body, an air inlet channel is formed in the valve cavity and is communicated with the gas pressurizing mechanism through a pipeline, a connector is formed below the valve cavity and is used for sealing and connecting a construction steel tube, a feed port is formed above the valve cavity, the cover plate is arranged in the valve cavity and is rotatably arranged at the feed port, the control mechanism is also fixed in the valve cavity and is rotatably connected with the cover plate, and the control mechanism drives the cover plate to rotate in the valve cavity to open or seal the feed port. The present case simple structure when ramming and enlarging the end stake, when gaseous booster mechanism is followed inlet channel input high-pressure gas and is made the valve pocket fill with high-pressure gas, high-pressure gas can constantly upwards push away the apron for the feed inlet is sealed by the apron and is more inseparable, has improved the gas tightness of whole device, becomes a stake high quality, improves construction convenience and efficiency of construction greatly.
Description
Technical Field
The invention relates to a pipe-sinking cast-in-place pile machine, in particular to a gas pushing and sealing device of the pipe-sinking cast-in-place pile machine.
Background
The existing prior document CN201120139726.5 discloses a rammed bottom pile back pressure device of a immersed tube pile-pouring machine, which includes a gas valve and a gas pressurizing device, wherein the gas valve is provided with an air inlet valve, an air outlet valve and a valve control device. However, as the gas valve is continuously applied and popularized in the actual working process, the gas valve is difficult to adapt to the construction environment which is different day by day due to the excessively aged and single structure, and the problem that the use effect is not ideal due to unstable performance in the construction process is often found, and the optimization is waited. Nowadays, a brand new gas valve is urgently needed by people in the field to make up for the defects of the existing construction process, and the scheme is generated by the brand new gas valve.
Disclosure of Invention
The invention aims to provide a gas pushing and sealing device of a pipe sinking cast-in-place pile machine, which has the advantages of simple structure, good airtight effect and high pile forming quality, and greatly improves the construction convenience and the construction efficiency.
In order to achieve the above purpose, the solution of the invention is: the utility model provides a immersed tube bored concrete pile machine's gaseous sealing device that pushes, includes valve body, apron, control mechanism and gaseous booster mechanism, the inside valve pocket that is equipped with of valve body, inlet channel is seted up to the valve pocket, inlet channel communicates with each other with gaseous booster mechanism through the pipeline, the interface is seted up to the valve pocket below, the interface supplies construction steel pipe sealing connection, the feed inlet is seted up to the valve pocket top, the apron is arranged in the valve pocket to the rotation sets up at the feed inlet, control mechanism also is fixed in the valve pocket, and rotates with the apron and be connected, control mechanism drives the apron and opens or seal at the valve pocket internal rotation the feed inlet.
Preferably, the control mechanism is vertically fixed in the valve cavity and comprises a telescopic cylinder and a connecting rod, the middle of the connecting rod is hinged to one side below the feed port, one end of the connecting rod is connected with the cover plate, the other end of the connecting rod is hinged to the telescopic cylinder and pushed and pulled by the telescopic cylinder, the connecting rod drives the cover plate to rotate downwards and is folded on the side wall of the valve cavity to open the feed port when the telescopic cylinder pushes upwards, and the connecting rod drives the cover plate to rotate upwards and is attached to the lower end face of the feed port to seal the feed port when the telescopic cylinder pulls downwards.
Preferably, the valve chamber is a cylindrical chamber.
Preferably, the telescopic cylinder is a hydraulic oil cylinder.
Preferably, the lower end surface of the feed inlet and the upper end surface of the cover plate are of mutually matched step surface structures.
Preferably, a sealing ring is arranged on the lower end face of the feed inlet, which is in contact with the cover plate.
Preferably, the valve body protrudes outwards to form a protruding cavity corresponding to the side wall of the valve cavity, and the control mechanism is arranged in the protruding cavity.
Preferably, the valve body sidewall below the protruding cavity is sloped to the interface.
Preferably, the interface is connected with the construction steel pipe in a sealing mode through a flange plate.
Preferably, the valve body is provided with an access hole at the position of the control mechanism, and the access hole is covered and sealed by a sealing cover.
After the scheme is adopted, compared with the prior art, the invention has the beneficial effects that: the invention realizes the aims of pile forming and pile removing by using a more specific and brand new gas pushing structure, and because the cover plate is arranged in the valve cavity and rotates upwards from the valve cavity to seal the feed port, when the valve cavity is filled with air pressure, the air pressure can continuously push the cover plate upwards, so that the feed port is more tightly sealed by the cover plate, and the air tightness of the whole device is improved; thereby when becoming the stake, atmospheric pressure can push the steel reinforcement cage downwards more fully, materials such as concrete, ensure the closely knit degree of cement rammer, prevent that the kneck from blockking up (prevent stifled pipe), also can prevent that the pile pulling from taking out the steel reinforcement cage phenomenon and appearing (prevent taking the cage), prevent simultaneously that the pile body is radially not full enough and shrink (prevent the undergauge), make the radial plumpness of pile body higher, increase single-column vertical bearing capacity and anti-pulling force, ensure the formation of cement protective layer, keep higher production level, consequently, avoid leading to the condition of remolding repeatedly because of the quality of becoming a stake, construction efficiency is improved.
Drawings
FIG. 1 is a front view of a schematic internal cross-sectional view of an embodiment of the present invention.
FIG. 2 is a left external view of an embodiment of the present invention.
FIG. 3 is a schematic internal cross-sectional view from above of an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a control mechanism according to an embodiment of the present invention.
FIG. 5 is a schematic view of a control mechanism according to an embodiment of the present invention sealed to an open position.
Description of reference numerals:
the air filter comprises a valve body 1, a valve cavity 11, an air inlet channel 12, a connector 13, a feed inlet 14, a convex cavity 15, an inclined surface 16, a flange plate 17, an access hole 18, a cover plate 2, a control mechanism 3, a telescopic cylinder 31, a connecting rod 32, a rotating fulcrum 321, a gas pressurization mechanism 4, a construction steel pipe 5, a sealing ring 6 and an air filter element 7.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings and specific embodiments.
The invention provides a gas pushing and sealing device of a pipe sinking pile pouring machine, please refer to fig. 1, which comprises a valve body 1, a cover plate 2, a control mechanism 3 and a gas pressurizing mechanism 4, wherein a valve cavity 11 is arranged in the valve body 1, the valve cavity 11 is provided with a gas inlet channel 12, as shown in fig. 2 and fig. 3, the gas inlet channel 12 is communicated with the gas pressurizing mechanism 4 through a pipeline, a connector 13 is arranged below the valve cavity 11, the connector 13 is in sealing connection with a construction steel pipe 5, a feed inlet 14 is arranged above the valve cavity 11, the cover plate 2 is arranged in the valve cavity 11 and is rotatably arranged at the feed inlet 14, and the feed inlet 14 can be used as a feed and discharge channel for materials such as a steel reinforcement cage, concrete and the like in an open state. The control mechanism 3 is also fixed in the valve cavity 11 and is rotationally connected with the cover plate 2, and the control mechanism 3 drives the cover plate 2 to rotate in the valve cavity 11 to open or seal the feed port 14.
Next, a description will be given of a specific fitting structure of the control mechanism and the cover plate and a process for further improving the airtightness. The valve cavity 11 is a cylindrical cavity, the interface 13 is arranged below the cylindrical cavity, the feed port 14 is arranged above the cylindrical cavity, the control mechanism 3 is vertically fixed in the cylindrical cavity, as shown in fig. 4, the control mechanism 3 comprises a telescopic cylinder 31 (specifically, a hydraulic cylinder or an air cylinder) and a connecting rod 32, the middle part of the connecting rod 32 is hinged to one side below the feed port 14 (specifically, one side of the lower end face of the feed port) to form a rotation fulcrum 321, one end of the connecting rod 32 is connected with the cover plate 2, the other end of the connecting rod 32 is hinged to the telescopic cylinder 31 and pushed and pulled by the telescopic cylinder 31, when the telescopic cylinder 31 pushes upwards, the connecting rod 32 drives the cover plate 2 to rotate downwards and fold to the side wall of the valve cavity 11 to open the feed port 14, and at the moment, the cylindrical cavity, the feed port 14 and the interface 13 are used, And (3) discharging the channel, wherein when the telescopic cylinder 31 is pulled downwards, the connecting rod 32 drives the cover plate 2 to rotate upwards and is attached to the lower end surface of the feed port 14 to seal the feed port 14, and the process is shown in fig. 1 and 5. In the invention, when the bottom pile is tamped, the cover plate 2 rotates upwards from the valve cavity 11 to seal the feed port 14, so when the gas pressurizing mechanism 4 inputs high-pressure gas from the gas inlet channel 12 to fill the valve cavity 11 with the high-pressure gas, the high-pressure gas can continuously push the cover plate 2 upwards, so that the feed port 14 is more tightly sealed by the cover plate 2, the air tightness of the whole device is improved, the construction steel pipe is prevented from being blocked (pipe blockage prevention), the high-pressure gas pushes the reinforced concrete downwards, the bottom pile is tamped and expanded to upwards and reversely extrude the construction steel pipe to realize pile pulling, the phenomenon that the pile is pulled out to form a reinforcement cage (cage prevention) is prevented, the filling degree of the pile body in the radial direction is higher by tamping the bottom pile, the pile body is prevented from being contracted due to insufficient radial filling (diameter shrinkage), the vertical bearing capacity and pulling resistance of a single column are increased, the formation of a cement protective layer is ensured, a higher production level is kept, and the situation that, the construction efficiency is improved. On the basis, in order to further improve the air tightness, the feed inlet 14 is provided with a sealing ring 6 on the lower end surface contacting with the cover plate 2.
In addition, apron 2 rotates downwards and receives and fold back control mechanism 3 and be located apron 2 at the back, consequently apron 2 can play the effect of separation control mechanism 3 and material, protection control mechanism. The structure is further optimized in the embodiment, the valve body 1 protrudes outwards to form a convex cavity 15 corresponding to the side wall of the valve cavity 11, and the control mechanism 3 is arranged in the convex cavity 15, so that the position of the control mechanism 3 is more hidden and is not interfered by materials completely. Furthermore, in order to prevent the material from accumulating in the convex cavity 15 and in the dead angle area below the control mechanism 3, the side wall of the valve body 1 below the convex cavity 15 can be designed into a slope 16, and the slope 16 is inclined to the interface 13, so that the material can flow out of the interface 13 along the slope when being sputtered onto the slope 16. The interface 13 is connected with the construction steel pipe 5 in a sealing mode through a flange 17, and is convenient for constructors to disassemble and assemble.
As shown in fig. 2, the valve body is provided with an access opening 18 at the position of the control mechanism, which is convenient for the maintenance of the control mechanism 3, the access opening 18 is covered by a sealing cover, and the sealing cover is opened during maintenance. In order to prevent air pollution, an air filter 7 is arranged in the air inlet channel 12.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the design of the present invention, and all equivalent changes made in the design key point of the present invention fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a immersed tube bored concrete pile machine's gaseous sealing device that pushes, a serial communication port, including valve body, apron, control mechanism and gaseous booster mechanism, the inside valve pocket that is equipped with of valve body, inlet channel is seted up to the valve pocket, inlet channel communicates with each other with gaseous booster mechanism through the pipeline, the interface is seted up to the valve pocket below, the interface supplies construction steel pipe sealing connection, the feed inlet is seted up to the valve pocket top, the apron is arranged in the valve pocket to the rotation sets up at the feed inlet, control mechanism also is fixed in the valve pocket to rotate with the apron and be connected, control mechanism drives the apron and opens or seals at the valve pocket internal rotation the feed inlet.
2. The gas pushing and sealing device of the immersed tube pile-pouring machine according to claim 1, wherein: the control mechanism is vertically fixed in the valve cavity and comprises a telescopic cylinder and a connecting rod, the middle of the connecting rod is hinged to one side below the feed port, one end of the connecting rod is connected with the cover plate, the other end of the connecting rod is hinged to the telescopic cylinder and pushed and pulled by the telescopic cylinder, the connecting rod drives the cover plate to rotate downwards and is folded on the side wall of the valve cavity to open the feed port when the telescopic cylinder pushes upwards, and the connecting rod drives the cover plate to rotate upwards and is attached to the lower end face of the feed port to seal the feed port when the telescopic cylinder pulls downwards.
3. The gas pushing and sealing device of the immersed tube pile-pouring machine according to claim 2, wherein: the valve cavity is a cylindrical cavity.
4. The gas pushing and sealing device of the immersed tube pile-pouring machine according to claim 2, wherein: the telescopic cylinder adopts a hydraulic oil cylinder.
5. The gas pushing and sealing device of the immersed tube pile-pouring machine according to claim 1, wherein: the lower end face of the feed inlet and the upper end face of the cover plate are of stepped face structures matched with each other.
6. The gas pushing and sealing device of the immersed tube pile-pouring machine according to claim 1, wherein: the feed inlet is arranged on the lower end face contacted with the cover plate and is provided with a sealing ring.
7. The gas pushing and sealing device of the immersed tube pile-pouring machine according to claim 1, wherein: the valve body protrudes outwards to correspond to the side wall of the valve cavity to form a protruding cavity, and the control mechanism is arranged in the protruding cavity.
8. The gas pushing and sealing device of the immersed tube pile driver as claimed in claim 7, wherein: the valve body side wall below the convex cavity is inclined to the interface.
9. The gas pushing and sealing device of the immersed tube pile-pouring machine according to claim 1, wherein: the interface is connected with the construction steel pipe in a sealing mode through a flange plate.
10. The gas pushing and sealing device of the immersed tube pile-pouring machine according to claim 1, wherein: the valve body is provided with an access hole at the position of the control mechanism, and the access hole is covered and sealed by a sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010453583.9A CN111472350A (en) | 2020-05-26 | 2020-05-26 | Gas pushing and sealing device of immersed tube cast-in-place pile machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010453583.9A CN111472350A (en) | 2020-05-26 | 2020-05-26 | Gas pushing and sealing device of immersed tube cast-in-place pile machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111472350A true CN111472350A (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010453583.9A Pending CN111472350A (en) | 2020-05-26 | 2020-05-26 | Gas pushing and sealing device of immersed tube cast-in-place pile machine |
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| Country | Link |
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| CN (1) | CN111472350A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217101A (en) * | 2022-08-26 | 2022-10-21 | 陈清贵 | Pneumatic pushing sealing device and method of immersed tube cast-in-place pile machine |
-
2020
- 2020-05-26 CN CN202010453583.9A patent/CN111472350A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217101A (en) * | 2022-08-26 | 2022-10-21 | 陈清贵 | Pneumatic pushing sealing device and method of immersed tube cast-in-place pile machine |
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