CN210797542U - Cement mixing pile guniting hole device capable of being automatically opened and closed - Google Patents
Cement mixing pile guniting hole device capable of being automatically opened and closed Download PDFInfo
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- CN210797542U CN210797542U CN201920929424.4U CN201920929424U CN210797542U CN 210797542 U CN210797542 U CN 210797542U CN 201920929424 U CN201920929424 U CN 201920929424U CN 210797542 U CN210797542 U CN 210797542U
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Abstract
The utility model discloses a but cement mixing stake whitewashing hole device of automatic opening and close relates to the cement mixing stake field that the building foundation handled. When the cement mixing pile works, guniting is needed in the pre-mixing sinking and re-mixing processes, otherwise, a guniting hole is easy to block, and cement is wasted. The utility model discloses a steel pipe segment with the shotcrete hole, steel pipe segment upper end is connected with power drill pipe through the screw thread, and steel pipe segment lower extreme passes through the screw thread to be connected with the drill bit point, is equipped with piston, spring and supporting board in the steel pipe segment, and the supporting board is fixed in the drill bit point, spring coupling piston and supporting board, before the drilling, the shotcrete hole of steel pipe segment lateral wall is plugged up to piston lateral wall, during drilling, under the shotcrete pressure, the piston pressurized moves down, and the shotcrete hole is opened. The method can effectively reduce the complexity of the construction process, avoid the unnecessary processes of the traditional pre-stirring and re-stirring guniting, improve the construction efficiency of the cement mixing pile and reduce the waste of cement slurry.
Description
Technical Field
The utility model relates to a cement mixing pile field that building foundation handled especially relates to a cement mixing pile whitewashing hole device that can open and close automatically.
Background
A cement mixing pile generally comprises ① pile positions are aligned, ② cement spraying is started, forward rotation pre-stirring sinking is carried out to a pile bottom stirring soil body, ③ the normal cement spraying pressure is adjusted to be normal, reverse rotation stirring is carried out to be lifted to a pile top design elevation, ④ forward rotation re-stirring sinking is carried out to be the pile bottom design elevation, ⑤ reverse rotation re-stirring lifting is carried out to be lifted to the ground, 1/2 ⑥ machine adjusting the cement spraying pressure to be normal to the cement spraying pressure is shifted to the next pile position, ② cement spraying procedures in the pre-stirring sinking and ⑤ re-stirring processes aim to prevent the cement spraying hole from being blocked by sludge, the cement spraying pressure is 1/2 of the normal pressure, and if the cement spraying is not carried out, the cement spraying hole is easily blocked.
As can be seen from the above construction process, the traditional construction method has the following disadvantages: 1. when the pre-stirring is performed and the soil body is sunk, the cement slurry cannot be diffused around, so that the cement slurry overflows out of the ground along the drill rod, and the waste of the cement slurry and the environmental pollution are caused; 2. when the elevation of the pile top of the cement mixing pile is lower than the elevation of the ground more than the elevation, the cement spraying is started when the pre-mixing sinks, so that the pile head part above the pile top is overlong, and the unnecessary consumption of cement paste is caused; 3. in the pre-stirring sinking and re-stirring processes, the slurry spraying is a mode of spraying and stirring simultaneously, so that cement and soil are difficult to be stirred uniformly, the pile body quality of the cement stirring pile is possibly influenced, and more cement slurry is wasted.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model and the technical task who provides are perfect and improve prior art scheme, provide a but cement mixing pile whitewashing hole device of automatic opening and close to prevent that whitewashing hole from blockking up and reducing the waste of cement and be the purpose. Therefore, the utility model adopts the following technical scheme.
A cement mixing pile guniting hole device capable of being automatically opened and closed comprises a steel pipe section, wherein a guniting hole is formed in the side wall of the steel pipe section, a drill bit is arranged at the lower end of the steel pipe section, a guniting hole opening and closing device is arranged in the steel pipe section, the upper end of the steel pipe section is connected with a power drill rod, the guniting hole opening and closing device is a piston type opening and closing device and comprises a piston, an elastic piece and a supporting plate, the supporting plate is detachably connected to the upper portion of the drill bit, the lower end of the elastic piece is connected to the supporting plate, the lower end of the piston is connected with the elastic piece, the space of the steel pipe section at the upper end of the piston is communicated with the power drill rod, the piston is connected with the inner wall of the steel pipe section in a sliding mode, before drilling, the side wall of the piston is supported by the elastic piece to, the piston moves downwards under pressure, the elastic piece compresses, the upper end of the side wall of the piston moves downwards to a position lower than the guniting hole, and the guniting hole is opened for guniting. The pile body structure is optimized, the structure is simple, the manufacture is convenient, the opening and closing of the passive grout spraying hole can be conveniently realized, the opening and closing of the grout spraying hole can be automatically controlled by opening and stopping the grout spraying hole, the opening and closing of the grout spraying hole are stable and not blocked, the grout spraying and blocking prevention are not needed in the process of pre-stirring sinking and re-stirring, the complexity of the construction process can be effectively reduced, the unnecessary processes of pre-stirring and re-stirring grout spraying are avoided, the construction efficiency of the cement stirring pile is improved, and the waste of cement slurry is reduced.
As a preferable technical means: the upper end of the steel pipe section is connected with the power drill rod through a thread, and the lower end of the steel pipe section is connected with the drill bit through a thread. The through of the upper space and the lower space of the joint can be conveniently realized, and the disassembly and the assembly are convenient.
As a preferable technical means: the elastic part is a plurality of springs which are uniformly distributed and supported. Low cost, good stability and reliable performance.
As a preferable technical means: the piston include annular rubber sleeve and piston cap, the piston cap be stainless steel material, annular rubber sleeve detachably be fixed in the upper end of piston cap. The annular rubber sleeve can effectively realize piston type sliding, the rubber material has elasticity, and when the side wall of the relative steel pipe section slides, side pressure exists, the sealing performance is good, and the stainless steel piston cap has better structural strength and keeps undeformed when being oppressed.
Has the advantages that:
1. the device simple structure, the preparation is convenient, and the installation is dismantled conveniently, and the easy access is maintained.
2. The opening and closing of the grout spraying hole can be automatically controlled by starting and stopping the grout, and the grout spraying hole is stably opened and closed and is not blocked.
3. The slurry can be stopped and stirred in the pre-stirring and re-stirring processes, so that the cement waste can be reduced, and the construction cost is saved.
4. The device not only ensures the quality of the pile body, but also optimizes the construction process of the cement mixing pile, avoids unnecessary procedures of pre-stirring and re-stirring guniting, and improves the construction efficiency of the cement mixing pile.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the steel pipe segment separation of the present invention.
Fig. 3 is a schematic view of the grout spraying hole device of the present invention in a grout stopping state.
Fig. 4 is a schematic diagram of the guniting state of the guniting hole device of the utility model.
In the figure: 1-an annular rubber sleeve; 2-a piston cap; 3-a spring; 4-supporting the supporting plate; 5-a guniting hole; 6-steel pipe segment; 7-drill bit; 8-power drill pipe.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-2, a cement mixing pile guniting hole device capable of automatically opening and closing comprises a steel pipe section 6, a guniting hole 5 is arranged on the side wall of the steel pipe section 6, a drill point 7 is arranged at the lower end of the steel pipe section 6, a guniting hole opening and closing device is arranged in the steel pipe section 6, the upper end of the steel pipe section 6 is connected with a power drill rod 8, the guniting hole opening and closing device is a piston type opening and closing device and comprises a piston, an elastic part and a support supporting plate 4, the support supporting plate 4 is detachably connected to the upper portion of the drill point 7, the lower end of the elastic part is connected to the support supporting plate 4, the lower end of the piston is connected with the elastic part, the space of the steel pipe section 6 at the upper end of the piston is communicated with the power drill rod 8, the piston is connected with the inner wall of the steel pipe section 6 in a sliding mode, before drilling, the piston moves downwards under pressure, the elastic piece is compressed, the upper end of the side wall of the piston moves downwards to a position lower than the slurry spraying hole 5, and the slurry spraying hole 5 is opened for slurry spraying.
In order to facilitate disassembly and maintenance, the upper end of the steel pipe section 6 is connected with the power drill rod 8 through threads, and the lower end of the steel pipe section 6 is connected with the drill bit 7 through threads. The through of the upper space and the lower space of the joint can be conveniently realized, and the disassembly and the assembly are convenient, and the overhaul and the maintenance are convenient.
In order to reduce the cost, the elastic part is 5 springs 3 which are uniformly supported. Low cost, good stability and reliable performance.
In order to realize the airtight effect of piston, the piston includes annular rubber sleeve 1 and piston cap 2, and piston cap 2 is stainless steel material, and annular rubber sleeve 1 detachably is fixed in the upper end of piston cap 2. The annular rubber sleeve 1 can effectively realize piston type sliding, the rubber material has elasticity, and when the side wall of the relative steel pipe segment 6 slides, side pressure exists, the sealing performance is good, and the stainless steel piston cap 2 has better structural strength and is not deformed when being pressed.
As shown in fig. 3, before the drill is started, the piston keeps an uncompressed in-situ state under the action of the resilience force of the spring 3, the piston is in close contact with the inner wall of the steel pipe segment 6, the guniting hole 5 is sealed, and the guniting hole 5 is in a closed state, so that the pre-stirring sinking is not needed to be guniting, and the guniting hole 5 cannot be blocked by sludge.
As shown in fig. 4, after the drill bit sinks to the designed elevation, the grouting pump is started, cement slurry is injected, the piston is pressed by the spring 3 under the action of the grouting pressure, the piston moves from top to bottom, the grouting hole 5 is opened, and the cement slurry is sprayed outwards.
When stopping the slip casting, the mudjack is closed, and piston upper surface pressure reduces, and spring 3 kick-backs, and the whitewashing hole 5 is blocked up to the piston to prevent that silt from getting into, avoid whitewashing hole 5 to be blockked up by silt.
After the device is used for a certain period, the device can be disassembled and checked, and factors such as the sealing property between the piston and the steel pipe section 6, the abrasion loss of the annular rubber sleeve 1, the resilience resetting accuracy of the spring 3 and the like are checked, so that the automatic opening and closing device is ensured to be reliable and effective.
The cement mixing pile guniting hole device capable of automatically opening and closing shown in the above fig. 1-4 is a concrete embodiment of the present invention, which has embodied the substantial features and progress of the present invention, and can modify the cement mixing pile guniting hole device in the aspects of shape, structure and the like according to the actual use requirement, all within the protection scope of the present scheme.
Claims (4)
1. The utility model provides a but cement mixing stake whitewashing hole device of automatic start-stop which characterized in that: the steel pipe drilling device is characterized by comprising a steel pipe section (6), wherein a guniting hole (5) is formed in the side wall of the steel pipe section (6), a drill point (7) is arranged at the lower end of the steel pipe section (6), a guniting hole opening and closing device is arranged in the steel pipe section (6), the upper end of the steel pipe section (6) is connected with a power drill rod (8), the guniting hole opening and closing device is a piston type opening and closing device and comprises a piston, an elastic piece and a supporting plate (4), the supporting plate (4) is detachably connected to the upper portion of the drill point (7), the lower end of the elastic piece is connected to the supporting plate (4), the lower end of the piston is connected with the elastic piece, the space of the steel pipe section (6) at the upper end of the piston is communicated with the power drill rod (8), and the piston is.
2. The cement mixing pile guniting hole device capable of being automatically opened and closed according to claim 1, wherein: the upper end of the steel pipe section (6) is connected with the power drill rod (8) through a thread, and the lower end of the steel pipe section (6) is connected with the drill bit (7) through a thread.
3. The cement mixing pile guniting hole device capable of being automatically opened and closed according to claim 1, wherein: the elastic part is a plurality of springs (3) which are uniformly distributed and supported.
4. The cement mixing pile guniting hole device capable of being automatically opened and closed according to claim 1, wherein: the piston include annular rubber sleeve (1) and piston cap (2), piston cap (2) be stainless steel material, annular rubber sleeve (1) detachably be fixed in the upper end of piston cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920929424.4U CN210797542U (en) | 2019-06-20 | 2019-06-20 | Cement mixing pile guniting hole device capable of being automatically opened and closed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920929424.4U CN210797542U (en) | 2019-06-20 | 2019-06-20 | Cement mixing pile guniting hole device capable of being automatically opened and closed |
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| CN210797542U true CN210797542U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920929424.4U Active CN210797542U (en) | 2019-06-20 | 2019-06-20 | Cement mixing pile guniting hole device capable of being automatically opened and closed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258543A (en) * | 2019-06-20 | 2019-09-20 | 浙江省送变电工程有限公司 | It is a kind of can automatic open close cement mixing pile whitewash aperture apparatus |
| CN112459047A (en) * | 2020-11-25 | 2021-03-09 | 国网江苏省电力有限公司泰州供电分公司 | Anti-drop grounding fastening pile |
| CN113832959A (en) * | 2021-09-13 | 2021-12-24 | 南京瑞迪建设科技有限公司 | Device for improving mixing efficiency of slurry and soil of mixing pile |
-
2019
- 2019-06-20 CN CN201920929424.4U patent/CN210797542U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258543A (en) * | 2019-06-20 | 2019-09-20 | 浙江省送变电工程有限公司 | It is a kind of can automatic open close cement mixing pile whitewash aperture apparatus |
| CN110258543B (en) * | 2019-06-20 | 2024-04-19 | 浙江省送变电工程有限公司 | Cement mixing pile guniting hole device capable of being opened and closed automatically |
| CN112459047A (en) * | 2020-11-25 | 2021-03-09 | 国网江苏省电力有限公司泰州供电分公司 | Anti-drop grounding fastening pile |
| CN113832959A (en) * | 2021-09-13 | 2021-12-24 | 南京瑞迪建设科技有限公司 | Device for improving mixing efficiency of slurry and soil of mixing pile |
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