CN209923921U - Can splice formula steel protects a section of thick bamboo and supports - Google Patents
Can splice formula steel protects a section of thick bamboo and supports Download PDFInfo
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- CN209923921U CN209923921U CN201920204735.4U CN201920204735U CN209923921U CN 209923921 U CN209923921 U CN 209923921U CN 201920204735 U CN201920204735 U CN 201920204735U CN 209923921 U CN209923921 U CN 209923921U
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Abstract
The utility model relates to a splicing type steel casing support, which comprises a plurality of sections of steel casings and a locking device, wherein one end of each steel casing is annularly cut from the outer side wall to the inner side wall to a certain depth to form a first splicing part, the other end of each steel casing is annularly cut from the inner side wall to the outer side wall to form a second splicing part for meshing the first splicing part, and the adjacent steel casings are mutually spliced through the first splicing part and the second splicing part to form a cylindrical wall protection structure; first bolt holes are formed in the circumferential direction of the first splicing part at intervals, second bolt holes corresponding to the first bolt holes are formed in the circumferential direction of the second splicing part at intervals, and a rod piece in the locking device is inserted into the first bolt holes and the second bolt holes to fix the adjacent steel casing. The multisection steel that assembles each other protects a section of thick bamboo and replaces the concrete dado, the utility model has the advantages of but reuse, strut of high quality and work efficiency height.
Description
Technical Field
The utility model belongs to the technical field of the technique of artifical bored pile and specifically relates to a can splice formula steel protects a section of thick bamboo and supports.
Background
A manual hole digging pile is a reinforced concrete pile which is manually dug and cast in place. The manual hole digging pile is generally thicker in diameter, the thinnest is more than 800 millimeters, the manual hole digging pile can bear a structural main body with fewer floors and higher pressure, and the application is common.
When the pile hole is excavated manually, the concrete protective wall is generally adopted to protect the pile hole, so that the pile hole is prevented from collapsing. The pile protecting wall adopts C25 concrete and a sectional excavation method, and the concrete protecting wall is poured after each section is excavated so as to protect the pile hole.
The above prior art solutions have the following drawbacks: the manual hole digging pile concrete retaining wall has long forming time and a plurality of working procedures, the engineering quality is difficult to ensure, and quality problems such as water leakage, collapse and the like are often accompanied, so that certain influence is caused on the construction; in addition, according to actual conditions, the retaining wall concrete often occupies more than 1/3 of the pile body concrete, so that resources are wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a but concatenation formula steel protects a section of thick bamboo and supports has reuse, struts advantage that high quality and work efficiency are high.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a splicing type steel casing support comprises a plurality of sections of steel casings and a locking device, wherein one end of each steel casing is annularly cut from the outer side wall to the inner side wall to a certain depth to form a first splicing position, the other end of each steel casing is annularly cut from the inner side wall to the outer side wall to form a second splicing position used for meshing the first splicing position, and the adjacent steel casings are mutually spliced through the first splicing position and the second splicing position to form a cylindrical wall protection structure; first bolt holes are formed in the circumferential direction of the first splicing part at intervals, second bolt holes corresponding to the first bolt holes are formed in the circumferential direction of the second splicing part at intervals, and a rod piece in the locking device is inserted into the first bolt holes and the second bolt holes to fix the adjacent steel casing.
Through adopting above-mentioned technical scheme, when excavation pile hole, protect a section of thick bamboo as pile hole dado through carrying out the follow-up steel, protect and fix through locking device between the section of thick bamboo, when concreting, can pour pile hole concrete simultaneously, pull out a section of thick bamboo is protected to the steel on one side, the device has reuse, strut advantage of high quality and work efficiency. The method avoids the problems that the formation time of the concrete retaining wall of the manually excavated pile is long, the working procedures are multiple, the engineering quality is difficult to ensure, and the quality problems such as water leakage and collapse are often accompanied, and certain influence is caused on the construction; in addition, according to actual conditions, the retaining wall concrete often occupies more than 1/3 of the pile body concrete, and the problem of resource waste exists.
The utility model discloses further set up to: the locking device comprises a fixing bolt and a nut, the fixing bolt is inserted into the first bolt hole and the second bolt hole, and the nut is screwed on the fixing bolt to fix the adjacent steel casing.
Through adopting above-mentioned technical scheme, it is fixed with adjacent steel casing through passing first bolt hole and second bolt hole with fixing bolt, easy operation.
The utility model discloses further set up to: the locking device comprises a sleeve, an ejector rod, a spring and a spring jumping bean, wherein one end of the sleeve is provided with an end cover to seal the sleeve, the other end of the sleeve is fixed on the inner wall of the steel casing at a position where a first bolt hole is formed at a first splicing position, the end cover is provided with a through hole which is coaxially arranged with the first bolt hole, the ejector rod is inserted into the sleeve through the through hole, one end of the ejector rod, extending into the sleeve, penetrates through the first bolt hole and the second bolt hole, the spring jumping bean is fixedly arranged on the side wall of one end of the ejector rod, extending out of the sleeve, and can be abutted against the side wall of the steel; follow the fixed spacing disc that is provided with of circumference of ejector pin, spacing disc is located the sleeve, the cover is equipped with the spring that is used for ordering about ejector pin indentation sleeve on the ejector pin, spring one end is fixed on the end cover, and the other end is fixed on spacing disc.
By adopting the technical scheme, the sleeve, the spring and the spring jumping bean are arranged outside the ejector rod, the spring jumping bean can be abutted against the outer wall of the steel casing, and the ejector rod is tensioned and fixed under the action of the spring; meanwhile, when the steel protective sleeve is disassembled, only the spring needs to be pressed to jump the bean and retract into the ejector rod, the ejector rod automatically contracts into the sleeve under the action of the spring, the steel protective sleeve which is spliced with each other can be disassembled, tools are not needed, the operation is simpler, and the construction efficiency is high.
The utility model discloses further set up to: the spring jumps beans and includes circular arch and reset spring, the peripheral outside extension of circular arch forms the surrounding edge, set up the via hole with circular protruding big or small adaptation on the outer wall of ejector pin, circular arch stretches out the ejector pin through the via hole, the surrounding edge butt is fixed circular arch on the ejector pin on the inner wall of ejector pin, reset spring one end butt is on the ejector pin inner wall, and other end butt is used for ordering about circular arch on circular arch and stretches out the via hole.
Through adopting above-mentioned technical scheme, reset spring can order about circular arch and stretch out the ejector pin from the via hole, supports the ejector pin tightly on the lateral wall of steel protects a section of thick bamboo, and is fixed more firmly.
The utility model discloses further set up to: the first splicing part is arranged to be a horn mouth, the small end of the first splicing part faces outwards, and the second splicing part is matched with the first splicing part.
Through adopting above-mentioned technical scheme, when the concatenation, because the tip opening of second concatenation department is great, when the first concatenation department of butt joint, relatively good alignment makes things convenient for the concatenation.
The utility model discloses further set up to: the length of the steel casing is 50-60 cm.
Through adopting above-mentioned technical scheme, make the steel protect a section of thick bamboo and adapt to the stake hole of the different degree of depth, it is comparatively convenient to install simultaneously.
The utility model discloses further set up to: the thickness of the steel casing is 2 cm.
Through adopting above-mentioned technical scheme, the steel protects a section of thick bamboo too thin, and intensity is too low, and easy pressurized deformation is too thick, and the cost is high, and heavy difficult hoist and mount of weight sets up to 2cm through experimental thickness and is most suitable.
The utility model discloses further set up to: the height of the first splicing part is 1-2cm, and the thickness of the first splicing part is 1 cm.
By adopting the technical scheme, the first splicing part is too high, so that the strength is easy to be unstable, the height is too low, the connection is unstable due to too little engagement, and the height is set to be 1-2cm most suitable through tests; simultaneously, the thickness is set to be 1cm, so that the strength of the joint can be guaranteed, and the connection stability can be guaranteed.
To sum up, the utility model discloses a beneficial technological effect does:
1. when a pile hole is excavated, the steel pile casings are used as pile hole protecting walls through follow-up, the steel pile casings are fixed through the locking device, and meanwhile, when concrete is poured, the pile hole concrete can be poured while the steel pile casings are pulled out, so that the device has the advantages of being reusable, good in supporting quality and high in working efficiency;
2. through setting up sleeve, ejector pin, spring and spring jumping beans, it is more convenient when making the installation and dismantling adjacent steel and protecting a section of thick bamboo, work efficiency is higher.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an explosion schematic view of the steel casing spliced with each other according to the first embodiment of the present invention;
fig. 3 is a top view of a first embodiment of the present invention;
fig. 4 is a plan view of a second embodiment of the present invention;
fig. 5 is a schematic structural view of a locking device according to a second embodiment of the present invention;
fig. 6 is a sectional view of a second locking device according to an embodiment of the present invention.
In the figure, 1, a steel casing; 11. a first splice; 12. a second splice; 13. a first bolt hole; 14. a second bolt hole; 2. a locking device; 21. fixing the bolt; 22. a nut; 23. a sleeve; 231. an end cap; 232. a channel; 233. perforating; 24. a top rod; 241. a limiting disc; 25. a spring; 26. jumping beans by a spring; 261. a circular protrusion; 262. a return spring; 263. and (7) surrounding edges.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the splicing type steel casing support disclosed by the utility model comprises a multi-section steel casing 1 and a locking device 2, wherein the diameter of the steel casing 1 is the same as that of a pile hole, and the steel casing is placed in the pile hole and abutted against the side wall of the pile hole; the steel casing 1 is a seamless steel cylinder, the wall thickness is 2cm, and the length is 50-60 cm. And a first splicing part 11 is formed at the upper end of the steel casing 1 by circular cutting from the outer side wall to the inner side wall, the height of the first splicing part 11 is 1-2cm, and the thickness of the first splicing part is 1 cm. A second splicing position 12 used for meshing the first splicing position 11 is formed at the lower end of the steel casing 1 in a circular cutting mode from the inner side wall to the outer side wall, the height of the second splicing position 12 is the same as that of the first splicing position 11, and the thickness of the second splicing position is 1 cm; when the two sections of steel casing 1 are spliced with each other, the second splicing part 12 is sleeved outside the first splicing part 11, and the two sections of steel casing 1 are spliced. Along the even first bolt hole 13 of having seted up in the circumferencial direction interval of first concatenation department 11, along the even second bolt hole 14 that sets up in the circumferencial direction interval of second concatenation department 12 corresponding with first concatenation department 11 position, adjacent steel protects a section of thick bamboo 1 and splices each other, and first bolt hole 13 aims at second bolt hole 14, and the member bar in locking device 2 inserts first bolt hole 13 and second bolt hole 14, protects a section of thick bamboo 1 fixedly with adjacent steel.
During construction, the steel casing 1 is hung on the first bolt hole 13 by a crane to be directly above a pile hole, and when the pile hole is excavated to be 50-60cm, the steel casing 1 is hung in the pile hole to temporarily protect the wall of the pile hole. And when the excavation is continued for 50-60cm downwards, hoisting the other section of steel casing 1, splicing and fixing the other section of steel casing 1, and then sequentially circulating the section of steel casing to the bottom of the hole. When concrete is poured, the uppermost steel casing 1 is lifted by a crane, a section of concrete is poured, the way of disassembling the section of steel casing 1 is lifted, the steel casing 1 is disassembled while the concrete is poured, and the steel casing 1 can be disassembled for recycling.
Referring to fig. 2 and 3, the locking device 2 includes a fixing bolt 21 and a nut 22, the fixing bolt 21 is inserted into the steel casing 1 through the first bolt hole 13 and the second bolt hole 14 from the outside of the steel casing 1, the nut 22 is screwed on the fixing bolt 21, and stops when the nut 22 abuts against the inner wall of the steel casing 1, and the adjacent steel casings 1 are fixed together.
Further, for the convenience of splicing adjacent steel casing 1, first splicing department 11 is set to be trumpet-shaped, the small end of first splicing department 11 opening faces the outside of steel casing 1, second splicing department 12 is in 11 looks adaptations of first splicing department, when the concatenation, because the tip opening of second splicing department 12 is great, when butt joint first splicing department 11, relatively good alignment makes things convenient for the concatenation.
Example two:
referring to fig. 4 and 5, the difference from the first embodiment is that the locking device 2 includes a sleeve 23, a plunger 24, a spring 25 (see fig. 6) and a spring bean 26, an end cap 231 is fixed to one end of the sleeve 23, the end cap 231 closes the sleeve 23, the other end is fixedly welded to the inner wall of the steel casing 1 and is located at a position where the first bolt hole 13 is formed in the first splice 11, a channel 232 (see fig. 6) is integrally formed inside the end cap 231 at a position close to the inner wall of the steel casing 1, and the channel 232 only allows the plunger 24 to pass through. A through hole 233 coaxially arranged with the first bolt hole 13 is formed in the end cover 231, and the ejector rod 24 is inserted into the sleeve 23 through the through hole 233; when the steel casing 1 is spliced, one end of the ejector rod 24 extending into the sleeve 23 penetrates through the first bolt hole 13 and the second bolt hole 14 to abut against the side wall of the pile hole. And a spring jumping bean 26 is fixedly arranged on the side wall of one end of the push rod 24 extending out of the sleeve 23, and the spring jumping bean 26 can be popped out after the push rod 24 extends out of the second bolt hole 14 and abuts against the outer wall of the steel casing 1. A limiting disc 241 (see fig. 6) is fixedly sleeved on the ejector rod 24, the limiting disc 241 is located in the sleeve 23, a spring 25 is sleeved on the ejector rod 24, one end of the spring 25 is fixed on the end cover 231, the other end of the spring 25 is fixed on the limiting disc 241, and the spring 25 is in a stretching state and can drive the ejector rod 24 to retract into the sleeve 23.
Referring to fig. 6, the spring jumping bean 26 includes a circular protrusion 261 and a return spring 262, the periphery of the circular protrusion 261 extends outwards to form a surrounding edge 263, a via hole matched with the size of the circular protrusion 261 is formed on the outer wall of the push rod 24, the circular protrusion 261 extends out of the push rod 24 through the via hole, the surrounding edge 263 abuts against the inner wall of the push rod 24 to fix the circular protrusion 261 on the push rod 24, one end of the return spring 262 abuts against the inner wall of the push rod 24, and the other end of the return spring 262 abuts against the circular protrusion 261 to drive the circular protrusion 261 to extend out of.
During construction, the ejector rod 24 retracts into the sleeve 23 and is located in the channel 232, the spring jumping bean 26 retracts into the ejector rod 24 under the extrusion of the channel 232, the ejector rod 24 is pressed towards the outside of the sleeve 23, the ejector rod 24 penetrates through the first bolt hole 13 and the second bolt hole 14, the spring jumping bean 26 automatically pops up and abuts against the outer wall of the steel casing 1, and the ejector rod 24 connects the steel casing 1. When the steel casing 1 is disassembled, the spring jumping bean 26 is pressed from the outer side of the steel casing 1, the spring jumping bean 26 retracts into the push rod 24, and the push rod 24 automatically retracts into the channel 232 of the sleeve 23 under the action of the spring 25.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a can splice formula steel protects a section of thick bamboo and support which characterized in that: the steel casing comprises a plurality of sections of steel casings (1) and a locking device (2), wherein one end of each steel casing (1) is annularly cut from the outer side wall to the inner side wall to a certain depth to form a first splicing part (11), the other end of each steel casing (1) is annularly cut from the inner side wall to the outer side wall to form a second splicing part (12) used for meshing the first splicing part (11), and the adjacent steel casings (1) are mutually spliced through the first splicing part (11) and the second splicing part (12) to form a cylindrical wall protection structure; first bolt holes (13) are formed in the circumferential direction of the first splicing part (11) at intervals, second bolt holes (14) corresponding to the first bolt holes (13) are formed in the circumferential direction of the second splicing part (12) at intervals, and a rod piece in the locking device (2) is inserted into the first bolt holes (13) and the second bolt holes (14) to fix the adjacent steel casing (1).
2. The splittable steel casing support of claim 1, wherein: the locking device (2) comprises a fixing bolt (21) and a nut (22), the fixing bolt (21) is inserted into the first bolt hole (13) and the second bolt hole (14), and the nut (22) is screwed on the fixing bolt (21) to fix the adjacent steel casing (1).
3. The splittable steel casing support of claim 1, wherein: the locking device (2) comprises a sleeve (23), an ejector rod (24), a spring (25) and a spring (25) for jumping beans, wherein one end of the sleeve (23) is provided with an end cover (231) for sealing the sleeve (23), the other end of the sleeve (23) is fixed on the inner wall of the steel casing (1) at the position where a first bolt hole (13) is formed in a first splicing position (11), the end cover (231) is provided with a through hole (233) coaxially arranged with the first bolt hole (13), the ejector rod (24) is inserted into the sleeve (23) through the through hole (233), one end of the ejector rod (24) extending into the sleeve (23) penetrates through the first bolt hole (13) and the second bolt hole (14), the side wall of one end, extending out of the sleeve (23), of the ejector rod (24) is fixedly provided with the spring (25) for jumping beans, and the spring (25) for jumping beans can abut against the side wall of the steel casing; follow the fixed spacing disc (241) that is provided with of circumference of ejector pin (24), spacing disc (241) are located sleeve (23), the cover is equipped with spring (25) that are used for driving ejector pin (24) indentation sleeve (23) on ejector pin (24), spring (25) one end is fixed on end cover (231), and the other end is fixed on spacing disc (241).
4. The splittable steel casing support of claim 3, wherein: spring (25) jump beans include circular arch (261) and reset spring (262), the peripheral outside extension of circular arch (261) forms surrounding edge (263), set up the via hole with circular arch (261) size adaptation on the outer wall of ejector pin (24), ejector pin (24) are stretched out through the via hole to circular arch (261), surrounding edge (263) butt is fixed circular arch (261) on ejector pin (24) on the inner wall of ejector pin (24), reset spring (262) one end butt is on ejector pin (24) inner wall, and the other end butt is used for driving circular arch (261) on circular arch (261) and stretches out the via hole.
5. The splittable steel casing support of claim 1, wherein: the first splicing part (11) is arranged to be a horn mouth, the small end of the first splicing part (11) faces outwards, and the second splicing part (12) is matched with the first splicing part (11).
6. The splittable steel casing support of claim 1, wherein: the length of the steel casing (1) is 50-60 cm.
7. The splittable steel casing support of claim 1, wherein: the thickness of the steel casing (1) is 2 cm.
8. The splittable steel casing support of claim 7, wherein: the height of the first splicing part (11) is 1-2cm, and the thickness of the first splicing part is 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920204735.4U CN209923921U (en) | 2019-02-13 | 2019-02-13 | Can splice formula steel protects a section of thick bamboo and supports |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920204735.4U CN209923921U (en) | 2019-02-13 | 2019-02-13 | Can splice formula steel protects a section of thick bamboo and supports |
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| CN209923921U true CN209923921U (en) | 2020-01-10 |
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| CN201920204735.4U Active CN209923921U (en) | 2019-02-13 | 2019-02-13 | Can splice formula steel protects a section of thick bamboo and supports |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943255A (en) * | 2021-01-25 | 2021-06-11 | 西安建筑科技大学 | Temporary support structure and method for recovery type circular pipe-jacking working well |
| CN114457750A (en) * | 2022-04-13 | 2022-05-10 | 中交第一航务工程局有限公司 | Construction method of large-diameter steel-concrete combined cylindrical structure |
-
2019
- 2019-02-13 CN CN201920204735.4U patent/CN209923921U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943255A (en) * | 2021-01-25 | 2021-06-11 | 西安建筑科技大学 | Temporary support structure and method for recovery type circular pipe-jacking working well |
| CN114457750A (en) * | 2022-04-13 | 2022-05-10 | 中交第一航务工程局有限公司 | Construction method of large-diameter steel-concrete combined cylindrical structure |
| CN114457750B (en) * | 2022-04-13 | 2022-06-28 | 中交第一航务工程局有限公司 | Construction method of large-diameter steel-concrete combined cylindrical structure |
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