CN210658335U - High-pressure jet grouting pile construction drill bit - Google Patents
High-pressure jet grouting pile construction drill bit Download PDFInfo
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- CN210658335U CN210658335U CN201921130029.6U CN201921130029U CN210658335U CN 210658335 U CN210658335 U CN 210658335U CN 201921130029 U CN201921130029 U CN 201921130029U CN 210658335 U CN210658335 U CN 210658335U
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- connecting rod
- control sleeve
- drill bit
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- pressure jet
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to the technical field of building construction equipment, and provides a high-pressure jet grouting pile construction drill bit, which comprises a drill rod, a control sleeve and a stirring wing; the control sleeve is sleeved at one end of the drill rod, which is far away from the drill bit; the stirring wing includes first connecting rod and the second connecting rod of mutual articulated, and the one end that the second connecting rod was kept away from to first connecting rod is articulated with the control sleeve, and the one end that the first connecting rod was kept away from to the second connecting rod is articulated with the drilling rod. The utility model provides a high pressure jet grouting pile construction drill bit installs stirring wing and control sleeve on current drilling rod, and when control sleeve was in the state of lifting, the lateral wall of drilling rod was hugged closely in the shrink of stirring wing, and when control sleeve was in the state of pushing down, the stirring wing opened, followed the drilling rod rotation, stirred the mixture to the soil body that has been cut the softening and grout, formed the effective pile body of stable diameter.
Description
Technical Field
The utility model relates to a construction equipment technical field especially relates to a high pressure jet grouting pile construction drill bit.
Background
The high-pressure rotary jet pile is characterized by that it utilizes high-pressure rotating nozzle to spray cement slurry into soil layer and mix it with soil body to form continuous lapped cement reinforced body. In recent years, with the wide development of infrastructure projects in China, the quality requirements for foundation treatment, foundation pit protection and curtain water stop are increasing on the premise that the scales of roads, airports, reservoirs and high-rise buildings are increasing. As the high-pressure jet grouting pile technology, the method has the advantages of simple equipment, convenience in construction, high speed, material saving, high efficiency, low cost, simplicity in operation, wide application range and the like, and is widely applied to the field of many infrastructures.
In the construction process of the traditional high-jet grouting pile, when a drill rod rotates, a soil body is cut through high-pressure cement paste, high-pressure gas or high-pressure water according to a jet flow jet orifice at the end part of the drill rod, so that the cement paste and the soil body are mixed, a jet grouting pile body is formed, and the purpose of reinforcing the soil body or isolating seepage is achieved. However, the effective pile diameter formed by high-pressure jet grouting cannot be guaranteed under different stratum conditions.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
An embodiment of the utility model provides a high pressure spouts a construction drill bit soon to when the drill bit among the solution prior art is to different stratum conditions, the effective pile body diameter that the high pressure spouts the formation soon can't obtain the technical problem of assurance.
(II) technical scheme
In order to solve the technical problem, the embodiment of the utility model provides a high-pressure jet grouting pile construction drill bit, which comprises a drill rod, a control sleeve and a stirring wing; the control sleeve is sleeved at one end of the drill rod, which is far away from the drill bit; the stirring wing includes first connecting rod and the second connecting rod of mutual articulated, and the one end that the second connecting rod was kept away from to first connecting rod is articulated with the control sleeve, and the one end that the first connecting rod was kept away from to the second connecting rod is articulated with the drilling rod.
The stirring wings are arranged along the circumferential direction of the drill rod at intervals.
Wherein, the stirring wing is two, and the contained angle between two stirring wings is 180.
The high-pressure jet grouting pile construction drill bit further comprises a locking ring; the locking ring is sleeved on the drill rod, the height of the locking ring is lower than that of a connecting point of the first connecting rod and the control sleeve, and the height of the locking ring is higher than that of a connecting point of the second connecting rod and the drill rod; the bottom end of the control sleeve is connected with the locking ring in a buckling mode.
A plurality of clamping grooves are formed in a ring body on one side, facing the control sleeve, of the locking ring, and the clamping grooves are arranged along the circumferential direction of the locking ring; the bottom of the control sleeve is correspondingly provided with a plurality of bulges, and the bulges are in one-to-one correspondence with the clamping grooves.
The outer side wall of the control sleeve is provided with a first mounting piece, and the first connecting rod is detachably mounted on the first mounting piece through a bolt; the outer side wall of the drill rod is provided with a second mounting piece, and the second connecting rod is detachably mounted on the second mounting piece through a bolt.
When the stirring wings are unfolded, the included angle between the first connecting rod and the second connecting rod is 60 degrees.
Wherein, the length of first link is equal with the length of second link.
(III) advantageous effects
The utility model provides a high pressure jet grouting pile construction drill bit installs stirring wing and control sleeve on current drilling rod, and when control sleeve was in the state of lifting, the lateral wall of drilling rod was hugged closely in the shrink of stirring wing, and when control sleeve was in the state of pushing down, the stirring wing opened, followed the drilling rod rotation, stirred the mixture to the soil body that has been cut the softening and grout, formed the effective pile body of stable diameter.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a high-pressure jet grouting pile construction drill bit according to the present invention, in which stirring wings are in an open state;
fig. 2 is a schematic structural diagram of an embodiment of the high-pressure jet grouting pile construction drill bit according to the present invention, in which the stirring wing is in a retracted state;
FIG. 3 is a top view of the high pressure jet grouting pile construction drill bit shown in FIG. 1;
FIG. 4 is a top view of the high pressure jet grouting pile construction drill bit shown in FIG. 2;
in the figure, 1-drill rod; 2-a control sleeve; 3-a drill bit; 4-an ejection port; 5-a first link; 6-a second link; 7-locking ring; 8-a first mounting tab; 9-a second mounting tab; 10-a card slot; 11-projection.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a high-pressure jet grouting pile construction drill bit 3, which includes a drill rod 1, a control sleeve 2 and a stirring wing; the control sleeve 2 is sleeved at one end of the drill rod 1 far away from the drill bit 3; the stirring wing comprises a first connecting rod 5 and a second connecting rod 6 which are hinged with each other, one end, far away from the second connecting rod 6, of the first connecting rod 5 is hinged with the control sleeve 2, and one end, far away from the first connecting rod 5, of the second connecting rod 6 is hinged with the drill rod 1.
Specifically, for example, the drill bit 3 is arranged at the bottommost part of the drill rod 1, the injection ports 4 are formed at the position, close to the upper part of the drill bit 3, of the drill rod 1, the number and the size of the injection ports 4 can be set according to the requirements of site construction, and the height of the injection ports 4 is not higher than that of the stirring wings; for example, the number of the mixing wings can be only one or two or more, and the actual installation number can be selected according to the properties of geological soil layers; for example, the first connecting rod 5 and the second connecting rod 6 which form the stirring wing can be made of alloy with certain strength, the first connecting rod 5 and the second connecting rod 6 can be rod-shaped, strip-shaped or sheet-shaped, the first connecting rod 5 and the second connecting rod 6 can be rotatably connected through a pin shaft, the stirring wing can be conveniently changed, and similarly, the first connecting rod 5 and the control sleeve 2 and the second connecting rod 6 and the drill rod 1 can be rotatably connected through a pin shaft, and in order to conveniently change the stirring wings with different dimensions, the first connecting rod 5 and the control sleeve 2 and the second connecting rod 6 and the drill rod 1 can be detachably connected by bolts.
During construction, the drill bit 3 rotates, the stirring wings are in a retracted state at the time, and the soil body is cut by using jet flow ejected from the jet orifice 4 at high pressure; after the soil body is cut and softened, the control sleeve 2 moves downwards, the stirring wings are unfolded and rotate along with the drill rod 1, the high-pressure jet flow continuously cuts the soil body along with the continuous downward drilling of the drill bit 3, and meanwhile, the stirring wings continuously rotate and stir to fully mix the cut and softened soil body with cement paste to form an effective pile body with a stable diameter.
The utility model provides a high pressure jet grouting pile construction drill bit 3 installs stirring wing and control sleeve 2 on current drilling rod 1, and when control sleeve 2 was in the state of lifting, the stirring wing shrink hugged closely drilling rod 1's lateral wall, and when control sleeve 2 was in the state of pushing down, the stirring wing opened, followed drilling rod 1 and rotated, stirred the mixture to the soil body that has been cut the softening and grout, formed stable diameter's effective pile body.
Further, the stirring wings are multiple, and the multiple stirring wings are arranged at intervals along the circumferential direction of the drill rod 1. Specifically, for example, when there are three stirring wings, the three stirring wings are arranged at equal intervals, that is, the included angle between two adjacent stirring wings is 120 °.
Furthermore, the stirring wings are two, and the included angle between the two stirring wings is 180 degrees.
As shown in fig. 2 and 4, the high pressure jet grouting pile construction drill 3 further includes a locking ring 7; the locking ring 7 is sleeved on the drill rod 1, the height of the locking ring 7 is lower than that of a connection point of the first connecting rod 5 and the control sleeve 2, and the height of the locking ring 7 is higher than that of a connection point of the second connecting rod 6 and the drill rod 1; the bottom end of the control sleeve 2 is snap-in connected with the locking ring 7. Specifically, for example, the locking ring 7 may be provided with the locking groove 10, the control sleeve 2 may be provided with the protrusion 11, or the locking ring 7 may be provided with the protrusion 11, and the control sleeve 2 may be provided with the locking groove 10; when the control sleeve 2 is pressed downwards, the clamping groove 10 is clamped with the protrusion 11, and the stirring wings are opened and locked at the moment; even, the locking ring 7 may be installed on the part of the drill rod 1 on the ground, and when the control sleeve 2 is lifted upwards, the top of the control sleeve 2 is engaged with the locking ring 7, and the mixing wings are in a retracted state to prevent the mixing wings from expanding after being stressed.
As shown in fig. 3, further, a plurality of clamping grooves 10 are formed in a ring body on one side of the locking ring 7 facing the control sleeve 2, and the plurality of clamping grooves 10 are arranged along the circumferential direction of the locking ring 7; the bottom of the control sleeve 2 is correspondingly provided with a plurality of bulges 11, and the bulges 11 are in one-to-one correspondence with the clamping grooves 10. Specifically, for example, two clamping grooves 10 may be symmetrically disposed on the locking ring 7, and correspondingly, two protrusions 11 may be symmetrically disposed on the bottom of the control sleeve 2; for example, the protrusion 11 may have an inverted triangle shape, and correspondingly, the slot 10 may also have an inverted triangle shape.
Further, a first mounting piece 8 is arranged on the outer side wall of the control sleeve 2, and the first connecting rod 5 is detachably mounted on the first mounting piece 8 through a bolt; the outer side wall of the drill rod 1 is provided with a second mounting piece 9, and the second connecting rod 6 is detachably mounted on the second mounting piece 9 through a bolt. Specifically, for example, the first attachment piece 8 and the second attachment piece 9 may be provided with attachment holes, and the end portions of the first link 5 and the second link 6 may be provided with attachment holes, and finally bolted.
Further, when the stirring wings are unfolded, the included angle between the first connecting rod 5 and the second connecting rod 6 is 60 °. Specifically, for example, the lengths of the first connecting rod 5 and the second connecting rod 6 may be equal, so that when the stirring wings are opened, an equilateral triangle is formed, so that the force is more uniformly applied, which is beneficial to improving the stirring effect.
Can see by above embodiment, the utility model provides a high pressure jet grouting pile construction drill bit possesses following beneficial effect:
1, on the premise of not influencing the normal work of the high-pressure jet grouting pile, the pile forming diameter of the high-pressure jet grouting pile is effectively ensured by adding a foldable stirring wing above a high-pressure jet orifice;
2, the drill bit can replace stirring wings so as to meet the requirements of high-pressure jet grouting piles with different diameters in practical projects.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A high-pressure jet grouting pile construction drill bit comprises a drill rod and is characterized by further comprising a control sleeve and stirring wings;
the control sleeve is sleeved at one end of the drill rod, which is far away from the drill bit;
the stirring wing comprises a first connecting rod and a second connecting rod which are hinged with each other, one end of the first connecting rod, which is far away from the second connecting rod, is hinged with the control sleeve, and one end of the second connecting rod, which is far away from the first connecting rod, is hinged with the drill rod.
2. The high-pressure jet grouting pile construction drill bit as claimed in claim 1, wherein the stirring wing is plural, and the stirring wings are arranged at intervals along the circumferential direction of the drill rod.
3. The high-pressure jet grouting pile construction drill bit as claimed in claim 2, wherein the number of the stirring wings is two, and an included angle between the two stirring wings is 180 °.
4. The high-pressure jet grouting pile construction drill bit according to claim 1, further comprising a locking ring;
the locking ring is sleeved on the drill rod, the height of the locking ring is lower than that of a connection point of the first connecting rod and the control sleeve, and the height of the locking ring is higher than that of a connection point of the second connecting rod and the drill rod;
the bottom end of the control sleeve is connected with the locking ring in a buckling mode.
5. The high-pressure jet grouting pile construction drill bit as claimed in claim 4, wherein a plurality of slots are formed in a ring body on one side of the locking ring facing the control sleeve, and the slots are arranged along the circumferential direction of the locking ring;
the bottom of the control sleeve is correspondingly provided with a plurality of bulges, and the bulges are in one-to-one correspondence with the clamping grooves.
6. The high-pressure jet grouting pile construction drill bit as claimed in claim 1, wherein a first mounting piece is provided on an outer side wall of the control sleeve, and the first connecting rod is detachably mounted on the first mounting piece through a bolt;
the outer side wall of the drill rod is provided with a second mounting piece, and the second connecting rod is detachably mounted on the second mounting piece through a bolt.
7. The drill bit for high-pressure jet grouting pile construction according to claim 1, wherein an included angle between the first connecting rod and the second connecting rod is 60 ° when the stirring wings are unfolded.
8. The high-pressure jet grouting pile construction drill bit as claimed in claim 1, wherein the first link has a length equal to that of the second link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921130029.6U CN210658335U (en) | 2019-07-18 | 2019-07-18 | High-pressure jet grouting pile construction drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921130029.6U CN210658335U (en) | 2019-07-18 | 2019-07-18 | High-pressure jet grouting pile construction drill bit |
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| Publication Number | Publication Date |
|---|---|
| CN210658335U true CN210658335U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921130029.6U Active CN210658335U (en) | 2019-07-18 | 2019-07-18 | High-pressure jet grouting pile construction drill bit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653449A (en) * | 2021-10-18 | 2021-11-16 | 山东水利建设集团有限公司 | Environment-friendly cement high-pressure rotary spraying device for seepage-proofing construction and seepage-proofing method thereof |
-
2019
- 2019-07-18 CN CN201921130029.6U patent/CN210658335U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653449A (en) * | 2021-10-18 | 2021-11-16 | 山东水利建设集团有限公司 | Environment-friendly cement high-pressure rotary spraying device for seepage-proofing construction and seepage-proofing method thereof |
| CN113653449B (en) * | 2021-10-18 | 2021-12-28 | 山东水利建设集团有限公司 | Environment-friendly cement high pressure spouts device soon for prevention of seepage construction |
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