CN216839399U - Drilling rod structure of cement mixing pile - Google Patents
Drilling rod structure of cement mixing pile Download PDFInfo
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- CN216839399U CN216839399U CN202123138329.9U CN202123138329U CN216839399U CN 216839399 U CN216839399 U CN 216839399U CN 202123138329 U CN202123138329 U CN 202123138329U CN 216839399 U CN216839399 U CN 216839399U
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Abstract
The utility model belongs to the technical field of the construction, especially, relate to a drilling rod structure of cement stirring stake. The tunneling spiral drill bit is movably inserted into the hollow rotary drill rod through a connecting pile; and the lower exposed section of the connecting pile is sleeved with a buffer spring; the upper half part of the connecting pile is movably clamped with a lifting chute at the bottom of the hollow rotary drill rod through a limiting piece; the middle of the upper end of the connecting pile column is connected with a linkage rod, a first fixing seat and a second fixing seat are sleeved in the middle of the linkage rod, the first fixing seat and the linkage rod are fixed, the second fixing seat and the inner wall of the hollow rotary drill rod are fixed through a connecting support, and a jet flow control frame is connected between the first fixing seat and the second fixing seat through a rotating shaft. It has increased mortar flow automatic regulating apparatus in the inside of traditional cement mixing stake drilling rod, can be according to the soft or hard degree automatically regulated mortar output quantity of soil layer to guarantee the stability of cement mixing stake, reduce the waste of mortar, reduce cost.
Description
Technical Field
The utility model belongs to the technical field of the construction, especially, relate to a drilling rod structure of cement stirring stake.
Background
The cement mixing pile is an effective form of soft foundation treatment, and is characterized by that it uses cement as main agent of solidifying agent, and utilizes mixing pile machine to spray cement into soil body and fully mix them so as to make cement and soil produce a series of physical and chemical reactions, and make the soft soil be hardened and raise foundation strength. However, the internal structure of the soft foundation is complex, the difference of the hardness of the internal soil layer is large, but the traditional cement mixing pile drilling structure cannot automatically adjust the grouting according to the hardness of the layer, so that cement waste is easily caused, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
Aiming at solving the problems of the defects and the shortcomings of the prior art; an object of the utility model is to provide a simple structure, reasonable in design, convenient to use's cement mixing pile's drilling rod structure, it has increased mortar flow automatic regulating apparatus in the inside of traditional cement mixing pile drilling rod, can be according to the soft or hard degree automatically regulated mortar output quantity on soil layer to guarantee the stability of cement mixing pile, reduce the waste of mortar, reduce cost.
In order to achieve the above object, the utility model adopts the following technical scheme: the device comprises a hollow rotary drill rod, a stirring paddle, a spraying paddle mushroom head and a tunneling spiral drill bit; the outer side of the lower end of the hollow rotary drill rod is connected with two groups of stirring blades which are layered up and down, a spraying mushroom head is arranged between the upper stirring blade and the lower stirring blade, and the lower port of the hollow rotary drill rod is connected with a tunneling spiral drill bit; the device also comprises a buffer spring, a connecting pile column, a limiting piece, a lifting chute, a sealing ring, a linkage rod, a first fixed seat, a second fixed seat, a jet flow control frame and a limiting and stabilizing disc; the tunneling spiral drill bit is movably inserted into the hollow rotary drill rod through a connecting pile; and the lower exposed section of the connecting pile is sleeved with a buffer spring; the upper half part of the connecting pile column is movably clamped with a lifting chute at the bottom of the hollow rotary drill rod through a limiting piece; the outer side of the top end of the connecting pile column seals the insertion joint through a sealing ring; the connecting pile comprises a connecting pile column and is characterized in that a linkage rod is connected to the middle of the upper end of the connecting pile column, a first fixing seat and a second fixing seat are sleeved in the middle of the linkage rod, the first fixing seat and the linkage rod are kept fixed, the second fixing seat and the inner wall of a hollow rotary drill rod are kept fixed through a connecting support, a jet flow control frame is connected between the first fixing seat and the second fixing seat through a rotating shaft, the top end of the linkage rod is connected with a limiting and stabilizing disc, and the limiting and stabilizing disc and the hollow rotary drill rod are kept attached to stably reinforce the linkage rod.
Preferably, the jet flow control frame consists of a folding connecting rod and a rubber elastic membrane, two ends of the folding connecting rod are respectively and movably connected between a first fixing seat and a second fixing seat, and the rubber elastic membrane is connected between the folding connecting rods, so that the integral expansion and contraction of the jet flow control frame are realized.
Preferably, the limiting and stabilizing disc is of a hollow structure.
Preferably, the telescopic distance of the connecting pile is controlled by the length of the lifting sliding groove, so that the top end of the connecting pile does not exceed the inner connecting opening of the mushroom head of the propeller when the connecting pile is completely contracted.
Preferably, the maximum expanding diameter of the jet paddle flow control frame is half of the inner diameter of the hollow rotary drill rod.
Preferably, the rotating radius of the stirring blade is consistent with that of the tunneling spiral drill bit; and the stirring blades on the upper layer and the lower layer are in staggered distribution.
Preferably, the top end of the mushroom head of the spraying paddle is provided with a pair of symmetrical spraying holes, and the included angle A between the spraying angle of each spraying hole and the horizontal plane is 45-60 degrees.
After the structure is adopted, the utility model discloses beneficial effect does: it has increased mortar flow automatic regulating apparatus in the inside of traditional cement mixing stake drilling rod, can be according to the soft or hard degree automatically regulated mortar output quantity of soil layer to guarantee the stability of cement mixing stake, reduce the waste of mortar, reduce cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention is described in detail by the following specific embodiments and the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a jet flow control frame 13 of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of the present invention;
fig. 4 is a schematic view of the retracted state of the present invention;
FIG. 5 is a schematic view of the mushroom head 3 of the present invention;
description of reference numerals: the device comprises an idle rotation drill rod 1, a stirring paddle 2, a propeller spraying mushroom head 3, a tunneling spiral drill bit 4, a buffer spring 5, a connecting pile 6, a limiting part 7, a lifting chute 8, a sealing ring 9, a linkage rod 10, a first fixing seat 11, a second fixing seat 12, a propeller spraying flow control frame 13, a limiting stabilizing disc 14, a folding connecting rod 15 and a rubber elastic membrane 16.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and/or process steps that are closely related to the solution according to the invention are shown in the drawings, while other details that are not relevant to the invention are omitted.
Referring to fig. 1 to 5, the following technical solutions are adopted in the present embodiment: the device comprises a hollow rotary drill rod 1, a stirring paddle 2, a spraying mushroom head 3 and a tunneling spiral drill bit 4; the outer side of the lower end of the hollow rotary drill rod 1 is connected with two groups of stirring blades 2 which are layered up and down, a spraying paddle mushroom head 3 is arranged between the upper stirring blade 2 and the lower stirring blade 2, and the lower port of the hollow rotary drill rod 1 is connected with a tunneling spiral drill bit 4; the device also comprises a buffer spring 5, a connecting pile 6, a limiting piece 7, a lifting chute 8, a sealing ring 9, a linkage rod 10, a first fixed seat 11, a second fixed seat 12, a jet flow control frame 13 and a limiting and stabilizing disc 14; the tunneling spiral drill bit 4 is movably inserted in the hollow rotary drill rod 1 through a connecting pile column 6; and the lower exposed section of the connecting pile 6 is sleeved with a buffer spring 5; the upper half part of the connecting pile column 6 is movably clamped with a lifting chute 8 at the bottom of the hollow rotary drill rod 1 through a limiting piece 7; the outer side of the top end of the connecting pile 6 seals the insertion joint through a sealing ring 9; the middle of the upper end of the connecting pile column 6 is connected with a linkage rod 10, a first fixing seat 11 and a second fixing seat 12 are sleeved in the middle of the linkage rod 10, the first fixing seat 11 and the linkage rod 10 are kept fixed, the second fixing seat 12 and the inner wall of the hollow rotary drill rod 1 are kept fixed through a connecting support, a jet flow control frame 13 is connected between the first fixing seat 11 and the second fixing seat 12 through a rotating shaft, the top end of the linkage rod 10 is connected with a limiting and stabilizing disc 14, and the limiting and stabilizing disc 14 and the hollow rotary drill rod 1 are kept attached to stably reinforce the linkage rod 10.
The jet flow control frame 13 is composed of a folding connecting rod 15 and a rubber elastic membrane 16, two ends of the folding connecting rod 15 are movably connected between a first fixing seat 11 and a second fixing seat 12 respectively, and the rubber elastic membrane 16 is connected between the folding connecting rods 15, so that the overall expansion and contraction of the jet flow control frame 13 are realized. When the tunneling spiral drill bit 4 drills in a high-density hard soil layer, as the resistance of the tunneling spiral drill bit 4 with high soil layer density is increased and can be contracted inwards, the connecting pile 6 is pushed upwards, the linkage rod 10 drives the first fixing seat 11 to move upwards synchronously, the folding connecting rod 15 is folded and expanded outwards, the conveying of mortar in the hollow rotary drill rod 1 is blocked, and the output quantity of the mortar is reduced; on the contrary, soft soil layer soft soil has small damping, and the tunneling spiral drill bit 4 is pushed forwards by the buffer spring 5, so that the jet pulp flow control frame 13 is completely opened to improve the jet pulp speed and flow.
In addition, the limiting and stabilizing disc 14 is a hollow structure. The flexible distance of connecting pile 6 control through the length of lift spout 8 to when guaranteeing that connecting pile 6 contracts completely, its top is no longer than 3 in-connection openings of jet grouting mushroom head. The flexible height of connecting pile 6 directly influences the flux of the interior opening of jet pulp mushroom head 3, needs restrict and avoids connecting pile 6 to block up the interior opening of jet pulp mushroom head 3.
Further, the maximum expanding diameter of the jet paddle flow control frame 13 is half of the inner diameter of the hollow rotary drill rod 1. And a certain amount of mortar flow is still kept under the expansion blocking state of the jet propeller flow control frame 13, and incomplete blocking is avoided. The rotating radius of the stirring blade 2 is consistent with that of the tunneling spiral drill bit 4; and the stirring blades 2 on the upper layer and the lower layer are in staggered distribution. The top end of the mushroom head 3 is provided with a pair of symmetrical guniting holes 31, and the included angle A between the spraying angle of the guniting holes 31 and the horizontal plane is 45-60 degrees. The mixing degree of cement mortar and soft soil is increased by matching the stirring blades 2 with the mortar spraying holes 31 with specific angles.
The working principle of the specific embodiment is as follows: the hollow rotary drill rod 1 is matched with an external driving device to rotationally match with a tunneling spiral drill bit 4 to perform brick hole drilling; grouting is carried out through a pressurized grouting device at the top end in the brick hole process; when the tunneling spiral drill bit 4 encounters a high-density hard soil layer in the process of brick hole drilling, the tunneling spiral drill bit 4 with high soil layer density increases resistance and can be pushed inwards, so that the connecting pile 6 and the linkage rod 10 synchronously move upwards, and meanwhile, the first fixing seat 11 is driven to synchronously move, the distance between the first fixing seat 11 and the second fixing seat 12 is reduced, so that the folding connecting rod 15 is folded and expanded outwards, the rubber elastic membrane 16 is expanded to block the conveying of mortar in the hollow rotary drill rod 1, and the flow of the mortar is reduced; on the contrary, when the soil layer with low density is touched, the resistance of the tunneling spiral drill bit 4 is small, the tunneling spiral drill bit 4 is pushed forwards by the buffer spring 5, the jet pulp flow control frame 13 is completely opened to improve the jet pulp speed and flow, and more cement paste is injected into the soft soil layer to improve the density of the soil layer.
The drill rod structure of the cement mixing pile in the specific embodiment comprises: it has increased mortar flow automatic regulating apparatus in the inside of traditional cement mixing stake drilling rod, can be according to the soft or hard degree automatically regulated mortar output quantity of soil layer to guarantee the stability of cement mixing stake, reduce the waste of mortar, reduce cost.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. The utility model provides a drilling rod structure of cement mixing stake which characterized in that: the device comprises a hollow rotary drill rod (1), stirring blades (2), a jet paddle mushroom head (3) and a tunneling spiral drill bit (4); the outer side of the lower end of the hollow rotary drill rod (1) is connected with two groups of stirring blades (2) which are layered up and down, a spraying mushroom head (3) is arranged between the upper stirring blade and the lower stirring blade (2), and the lower port of the hollow rotary drill rod (1) is connected with a tunneling spiral drill bit (4); the device also comprises a buffer spring (5), a connecting pile column (6), a limiting piece (7), a lifting chute (8), a sealing ring (9), a linkage rod (10), a first fixed seat (11), a second fixed seat (12), a jet flow control frame (13) and a limiting and stabilizing disc (14); the tunneling spiral drill bit (4) is movably inserted into the hollow rotary drill rod (1) through a connecting pile column (6); and the lower exposed section of the connecting pile column (6) is sleeved with a buffer spring (5); the upper half part of the connecting pile column (6) is movably clamped with a lifting chute (8) at the bottom of the hollow rotary drill rod (1) through a limiting piece (7); the outer side of the top end of the connecting pile column (6) seals the insertion joint through a sealing ring (9); connecting pile post (6) upper end intermediate junction has trace (10), the fixing base (11) has been cup jointed in the middle of trace (10), fixing base two (12), fixing base one (11) keep fixed with trace (10), fixing base two (12) keep fixed through linking bridge and cavity rotation drilling rod (1) inner wall, and fixing base one (11), be connected with through the rotation axis between fixing base two (12) and spout oar accuse stream frame (13), the top of trace (10) is connected with spacing stable dish (14), spacing stable dish (14) keep laminating with cavity rotation drilling rod (1) and carry out the stabilization to trace (10).
2. The drill rod structure of a cement mixing pile as claimed in claim 1, wherein: spout oar accuse flow frame (13) constitute by folding connecting rod (15) and rubber elasticity membrane (16), the both ends of folding connecting rod (15) swing joint respectively have between fixing base (11), fixing base two (12), and be connected with rubber elasticity membrane (16) between each folding connecting rod (15), realize spouting the holistic expansion and the shrink of oar accuse flow frame (13).
3. The drill rod structure of a cement mixing pile as claimed in claim 1, wherein: the limiting and stabilizing disc (14) is of a hollow structure.
4. The drill rod structure of a cement mixing pile as claimed in claim 1, wherein: the flexible distance of connecting stake (6) control through the length of lift spout (8) to when guaranteeing that connecting stake (6) contract completely, its top is no longer than jet oar mushroom head (3) in-connection opening.
5. The drill rod structure of the cement mixing pile as recited in claim 1, wherein: the maximum expansion diameter of the jet paddle flow control frame (13) is half of the inner diameter of the hollow rotary drill rod (1).
6. The drill rod structure of a cement mixing pile as claimed in claim 1, wherein: the rotating radius of the stirring blade (2) is consistent with that of the tunneling spiral drill bit (4); and the stirring blades (2) of the upper layer and the lower layer are in staggered distribution.
7. The drill rod structure of a cement mixing pile as claimed in claim 1, wherein: the top end of the mushroom head (3) is provided with a pair of symmetrical guniting holes (31), and the included angle A between the spraying angle of the guniting holes (31) and the horizontal plane is 45-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123138329.9U CN216839399U (en) | 2021-12-14 | 2021-12-14 | Drilling rod structure of cement mixing pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123138329.9U CN216839399U (en) | 2021-12-14 | 2021-12-14 | Drilling rod structure of cement mixing pile |
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| Publication Number | Publication Date |
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| CN216839399U true CN216839399U (en) | 2022-06-28 |
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| CN202123138329.9U Active CN216839399U (en) | 2021-12-14 | 2021-12-14 | Drilling rod structure of cement mixing pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434317A (en) * | 2022-08-22 | 2022-12-06 | 广西有色勘察设计研究院 | High-quality reinforcing apparatus of stirring stake that geotechnical engineering used |
-
2021
- 2021-12-14 CN CN202123138329.9U patent/CN216839399U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434317A (en) * | 2022-08-22 | 2022-12-06 | 广西有色勘察设计研究院 | High-quality reinforcing apparatus of stirring stake that geotechnical engineering used |
| CN115434317B (en) * | 2022-08-22 | 2023-10-13 | 广西有色勘察设计研究院 | Stirring stake high quality reinforcing apparatus that geotechnical engineering used |
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