CN211171984U - Pile end grouting nozzle - Google Patents
Pile end grouting nozzle Download PDFInfo
- Publication number
- CN211171984U CN211171984U CN201921516410.6U CN201921516410U CN211171984U CN 211171984 U CN211171984 U CN 211171984U CN 201921516410 U CN201921516410 U CN 201921516410U CN 211171984 U CN211171984 U CN 211171984U
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- grouting
- piston
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- 239000011440 grout Substances 0.000 claims abstract description 75
- 238000007569 slipcasting Methods 0.000 claims abstract description 68
- 239000002002 slurry Substances 0.000 claims abstract description 57
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 description 16
- 239000002689 soil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a stake end slip casting shower nozzle, it includes slip casting pipe, adjusting part and slip casting head, wherein: the inner part of the grouting pipe is connected with a baffle and a base at intervals along the grouting direction, the baffle is provided with a first grout outlet, and the base is provided with a grout passing hole; the adjusting assembly is movably arranged in the first slurry outlet hole and comprises at least two pistons which are sequentially sleeved from inside to outside, each piston is respectively connected with the base through a corresponding elastic piece, and the elasticity of each elastic piece connected with each piston is sequentially increased in an increasing manner along the direction from inside to outside; the grouting head is connected to the grout outlet end of the grouting pipe, and a grouting hole is formed in the grouting head. The utility model discloses a stake end slip casting shower nozzle, under the state that grouting pressure satisfies the user demand, can open first grout outlet smoothly, accomplish the slip casting operation, and can adjust the slip casting flow according to grouting pressure size to guarantee that the slip casting flow satisfies the user demand.
Description
Technical Field
The utility model relates to a building engineering technical field, in particular to stake end slip casting shower nozzle.
Background
In order to ensure the bearing capacity of the pile foundation, post grouting is used as a process in pile foundation construction, generally, after the pile foundation is poured with concrete and the strength meets the requirement, the pile bottom and the pile side of a pile body are grouted through a grouting pipe embedded in advance, so that the bearing capacity of the foundation is improved, and the foundation construction quality is ensured. During post grouting, cement slurry is pressed into the pile end through a grouting pipe, and is firstly combined with sediment, isolated ' virtual tip ' and dry ballast stones ' of the pile end, so that the compactness of the part is enhanced, and the bearing capacity of a soil body is improved; the slurry returns upwards along the combined layer of the pile body and the soil layer, so that mud skin is eliminated, the frictional resistance of the side of the pile is improved, and meanwhile, the slurry transversely permeates to the side of the pile to play a role in increasing the diameter of the pile. The structure of the spray head at the end part of the grouting pipe is a key for smoothly carrying out grouting, but the grouting pipe and the spray head used in the current post-grouting process are mostly manufactured on site, small-diameter holes are drilled along the circumference of the grouting pipe within a certain length range at the end part of the grouting pipe, the holes are arranged at intervals and spirally staggered along the circumference of the grouting pipe, two layers of adhesive tapes, plastic films or rubber films and the like are wrapped outside the grouting pipe and are wound and tightened by iron wires and the like, the adhesive tapes or the plastic films wrapped outside cannot be ensured to smoothly fall off in the actual construction process on site, the grouting holes cannot be ensured to be smooth, so that the grouting operation cannot be smoothly completed, the grouting success rate is low, the quality of a pile body is difficult to ensure, the bearing capacity of a foundation cannot meet the design requirements, and the use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can carry out the slip casting operation smoothly, and can adjust the stake end slip casting shower nozzle of slip casting flow according to slip casting pressure size.
In order to achieve the above object, the utility model provides a stake end slip casting shower nozzle, it includes:
the inner part of the grouting pipe is connected with a baffle and a base at intervals along the grouting direction, the baffle is provided with a first grout outlet, and the base is provided with a grout passing hole;
the adjusting assembly is movably arranged in the first slurry outlet hole and comprises at least two pistons which are sequentially sleeved from inside to outside, each piston is connected with the base through a corresponding elastic piece, and the elasticity of each elastic piece connected with each piston is sequentially increased in an increasing manner along the direction from inside to outside;
and the grouting head is connected to the grout outlet end of the grouting pipe, and a grouting hole is formed in the grouting head.
The pile end grouting nozzle comprises two pistons, wherein the two pistons are respectively a first piston and a second piston, the elastic piece connected with the first piston is a first elastic piece, the elastic piece connected with the second piston is a second elastic piece, the first piston can be arranged in the first grout outlet hole in a vertically movable mode, the outer peripheral surface of the first piston can be in sealing fit with the inner surface of the first grout outlet hole, the first piston is provided with a second grout outlet hole, the second piston can be arranged in the second grout outlet hole in a vertically movable mode, and the outer peripheral surface of the second piston can be in sealing fit with the inner surface of the second grout outlet hole.
The pile end grouting nozzle comprises a first piston, a second piston and a first slurry outlet, wherein the first slurry outlet is in a conical shape with a small top and a big bottom, and the shape of the first piston is matched with that of the first slurry outlet;
the second slurry outlet is in a conical shape with a small upper part and a big lower part, and the shape of the second piston is matched with that of the second slurry outlet.
The pile end grouting nozzle comprises a base, wherein the base is annular, the inner wall surface of the base is connected with three supporting ribs arranged at intervals along the circumferential direction, the three supporting ribs extend towards the inside of the base and intersect at one point, the grout passing hole is formed between every two adjacent supporting ribs, and each supporting rib is provided with a fixing block used for connecting the first elastic piece.
The pile end grouting nozzle comprises a baffle plate, a grouting pipe and a grouting pipe, wherein the baffle plate and the grouting pipe are of an integrated structure.
The pile end grouting nozzle comprises a grouting hole, a plug and a grouting hole, wherein the plug is detachably connected to the grouting hole.
The pile end grouting nozzle comprises a plug part and a connecting part, wherein the outer peripheral surface of the plug part can be in sealing fit with the inner surfaces of the grouting holes, annular grooves are respectively arranged on the outer peripheral surface of the grouting head corresponding to the positions of the grouting holes, and the connecting part is embedded in the annular grooves.
The pile-end grouting nozzle comprises a pile end, a spring and a connecting piece.
The pile end grouting nozzle comprises a connecting section and a grouting section, wherein the connecting section and the grouting section are connected up and down, the connecting section is connected with the grouting pipe, the grouting section is in a conical shape with a large top and a small bottom, and a plurality of grouting holes are formed in the grouting head at intervals along the circumferential direction.
The pile end grouting nozzle comprises a grouting pipe, a connecting section and a base, wherein the lower part of the grouting pipe is provided with an internal thread, the connecting section is provided with a connecting external thread, the outer peripheral surface of the base is provided with a base external thread, the connecting external thread is in threaded fit with the internal thread, the grouting head is connected with the grouting pipe, the base is in threaded fit with the internal thread through the base external thread, and the base is connected with the grouting pipe.
Compared with the prior art, the utility model has the advantages as follows:
the pile end grouting spray head of the utility model is beneficial to the standardization and standardization of site construction, can improve the success rate of post grouting and pile forming quality, and ensures safe, efficient and high-quality construction;
the pile end grouting spray head of the utility model supports the first piston to block the first grout outlet through the first elastic part, supports the second piston to block the second grout outlet through the second elastic part, can prevent the reverse flow of slurry from blocking the grouting pipe, and can ensure that the second grout outlet or the first grout outlet can be smoothly opened to complete grouting operation when the grouting pressure is greater than that of the second elastic part or the first elastic part, and can adjust the grouting flow according to the grouting pressure to ensure that the grouting flow meets the use requirements;
the utility model discloses a stake end slip casting shower nozzle, through the slip casting section that sets up the taper on slip casting head, and set up the slip casting hole on the outer peripheral face of slip casting section, make the central line in slip casting hole and the central line of slip casting pipe not collineation, when the thick liquid by each slip casting hole blowout, can increase the slip casting area, and make the thick liquid evenly pour into the soil body on every side, thereby improve the slip casting quality, be favorable to the site operation standardization simultaneously, improve the construction efficiency, guarantee slip casting success rate and pile body and become the stake quality, accelerate the construction progress, reduce the cost.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
fig. 1 is a schematic structural view of a pile end grouting nozzle of the present invention;
FIG. 2 is a schematic view of a half-section of the pile end grouting nozzle shown in FIG. 1;
FIG. 3 is a schematic view, partially in section, of a grout pipe in the pile end grouting nozzle of FIG. 1;
FIG. 4 is a schematic view of the construction of the base of the pile-end grouting nozzle shown in FIG. 1;
FIG. 5 is a schematic top view of the grout tube of FIG. 4;
FIG. 6 is a schematic view of a first resilient member of the pile end grouting nozzle of FIG. 1;
FIG. 7 is a schematic cross-sectional view of a first piston of the pile end grouting nozzle of FIG. 1;
FIG. 8 is a schematic top view of the first piston shown in FIG. 7;
FIG. 9 is a schematic cross-sectional view of a second piston in the pile end grouting nozzle of FIG. 1;
FIG. 10 is a schematic top view of the second piston shown in FIG. 9;
FIG. 11 is a schematic view of the construction of the grouting head in the pile end grouting nozzle shown in FIG. 1;
FIG. 12 is a schematic bottom view of the grouting head shown in FIG. 11;
FIG. 13 is a schematic cross-sectional view of the grouting head shown in FIG. 11;
fig. 14 is a structural schematic view of a plug in the pile-end grouting nozzle shown in fig. 1.
The reference numbers illustrate:
1. a grouting pipe; 11. a baffle plate; 111. a first slurry outlet; 12. a base; 121. slurry passing holes; 122. a support rib; 1221. a fixed block; 123. base external threads; 13. an internal thread; 14. an upper connecting thread;
2. an adjustment assembly; 21. a first piston; 211. a second slurry outlet; 22. a second piston; 23. a first elastic member; 24. a second elastic member;
3. a grouting head; 31. a connecting section; 311. connecting external threads; 32. a grouting section; 321. grouting holes; 322. an annular groove;
4. a plug; 41. a blocking portion; 42. a connecting portion.
Detailed Description
In order to clearly understand the technical solution, purpose and effect of the present invention, the detailed embodiments of the present invention will be described with reference to the accompanying drawings. Where adjective or adverbial modifiers "upper" and "lower", "inner" and "outer" are used merely to facilitate relative reference between groups of terms, and do not describe any particular directional limitation on the modified terms. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 and 2, the utility model provides a stake end slip casting shower nozzle, it includes slip casting pipe 1, adjusting part 2 and slip casting head 3, wherein:
as shown in fig. 1 and 3, the outer peripheral surface of the upper portion of the grouting pipe 1 is provided with an upper connecting thread 14 for facilitating connection with other components, the inside of the grouting pipe 1 is connected with a baffle 11 and a base 12 at intervals from top to bottom (i.e. along the grouting direction), specifically, the baffle 11 is located in the middle of the grouting pipe 1, the base 12 is located at the lower portion of the grouting pipe 1, the baffle 11 and the base 12 are both hermetically connected with the grouting pipe 1 to prevent the slurry from flowing out through the gap between the baffle 11 and the grouting pipe 1, and/or the base 12 and the grouting pipe 1 flow out through the gap between the base 12 and the grouting pipe 1, as shown in fig. 3, the baffle 11 is provided with a first slurry outlet hole 111, as shown in fig. 5, the base 12 is provided with a slurry passing hole 121, and the slurry entering the grouting pipe from the upper end of the grouting pipe 1 can sequentially pass through the first slurry outlet hole 111 and the slurry passing hole 121;
the adjusting assembly 2 is movably arranged in the first slurry outlet hole 111, the adjusting assembly 2 comprises at least two pistons which are sequentially sleeved from inside to outside, each piston is connected with the base through a corresponding elastic piece, and the elasticity of each elastic piece connected with each piston is sequentially increased in an increasing manner along the direction from inside to outside (namely along the direction from the inside to the outside of the adjusting assembly); specifically, in an embodiment of the present invention, as shown in fig. 1, the adjusting assembly 2 includes two pistons, the two pistons are respectively a first piston 21 and a second piston 22, the elastic member connected to the first piston 21 is a first elastic member 23, the elastic member connected to the second piston 22 is a second elastic member 24, the first piston 21 can be disposed in the first grout outlet 111 in a vertically movable manner, and the outer circumferential surface of the first piston 21 can be in sealing contact with the inner surface of the first grout outlet 111, i.e. the first piston 21 can seal the first grout outlet 111, the first elastic member 23 can support and restore the first piston 21, specifically, when the pressure of the injected grout is less than the elastic force of the first elastic member 23, the first elastic member 23 supports the first piston 21, so that the first piston 21 is fixed, the first grout outlet 111 is in a blocked state, when the pressure of the grout is greater than the elastic force of the first elastic member 23, the pressure of the slurry drives the first piston 21 to move downwards, the first piston 21 moves downwards to press the first elastic piece 23, the first elastic piece 23 is compressed, the first slurry outlet hole 111 is in an opened state, when the pressure of the slurry is smaller than the elastic force of the first elastic piece 23 again, the first piston 21 moves upwards under the elastic force of the first elastic piece 23 and is inserted into the first slurry outlet hole 111 again, and the first slurry outlet hole 111 is in a blocked state; as shown in fig. 7, the first piston 21 is provided with a second slurry outlet 211, as shown in fig. 1 and fig. 2, the second piston 22 is disposed in the second slurry outlet 211 and can move up and down, and the outer circumferential surface of the second piston 22 can be in sealing contact with the inner surface of the second slurry outlet 211, that is, the second piston 22 can seal the second slurry outlet 211, the second elastic member 24 can support and restore the second piston 22, and the elastic force of the second elastic member 24 is smaller than the elastic force of the first elastic member 23, specifically, when the pressure of the injected slurry is smaller than the elastic force of the second elastic member 24, the second elastic member 24 supports the second piston 22, so that the second piston 22 is fixed, the second slurry outlet 211 is in a blocked state, when the pressure of the slurry is greater than the elastic force of the second elastic member 24, the pressure of the slurry drives the second piston 22 to move down, the second piston 22 moves down to press the second elastic member 24, the second elastic member 24 is compressed, the second slurry outlet 211 is in an opened state, when the pressure of the slurry is smaller than the elastic force of the second elastic member 24 again, the second piston 22 moves upwards under the elastic force of the second elastic member 24 and is inserted into the second slurry outlet 211 again, so that the second slurry outlet 211 is in a blocked state;
when the adjusting assembly 2 has three or more pistons, the working process is similar to the above process, and is not described again;
as shown in fig. 1, the grouting pipe 1 has a grouting end and a discharge end, and the grouting head 3 is connected to the discharge end of the grouting pipe 1, and as shown in fig. 11, 12 and 13, the grouting head 3 is provided with a grouting hole 321, and the grout flowing out through the lower end of the grouting pipe 1 enters the grouting head 3 and is injected into a desired position through the grouting hole 321 of the grouting head 3.
In the grouting process, as shown in fig. 1, the grout enters the grouting pipe 1 from the upper end (grouting end) of the grouting pipe 1, when the pressure of the injected grout is small, the pressure of the grout can only drive the second piston 22 to move downwards to press the second elastic member 24 because the elastic force of the second elastic member 24 is smaller than the elastic force of the first elastic member 23, so that the second grout outlet 211 is opened, and the flow rate of the grout entering the grouting head 3 through the grouting pipe 1 is small because the inner diameter of the second grout outlet 211 is small, so that the amount of the grout ejected from the grouting hole 321 is also small; when the pressure of the thick liquid of pouring into is great, the pressure energy drive first piston 21 of thick liquid moves extrusion first elastic component 23 downwards, thereby open first grout outlet 111, because the internal diameter of first grout outlet 111 is great, make the flow of the thick liquid that gets into slip casting head 3 through slip casting pipe 1 great, consequently, the thick liquid volume from slip casting hole 321 spun is also great, thereby can be according to the pressure of slip casting liquid, the size of control slip casting flow, so that the slip casting flow satisfies the user demand.
The utility model discloses a stake end slip casting shower nozzle, support first piston 21 through first elastic component 23 and block up first grout hole 111, second elastic component 24 supports second piston 22 and blocks up second grout hole 211, can enough prevent the palirrhea slip casting pipe 1 that blocks up of mud, can be when slip casting pressure is greater than second elastic component 24 or the elasticity of first elastic component 23 again, make second grout hole 211 or first grout hole 111 open smoothly, accomplish the slip casting operation, and realized adjusting the slip casting flow according to slip casting pressure size, so that the slip casting flow satisfies the user demand.
Further, in order to facilitate the insertion of the pile end grouting nozzle into the soil, as shown in fig. 11, 12 and 13, the grouting head 3 includes a connecting section 31 and a grouting section 32 connected up and down, the connecting section 31 is connected with the grouting pipe 1, the grouting section 32 is tapered with a large top and a small bottom to reduce the resistance of the soil body, so that the grouting head 3 can be smoothly inserted into the soil, thereby improving the grouting efficiency, a plurality of grouting holes 321 are circumferentially arranged on the grouting head 3 at intervals, and the grouting holes 321 are equally spaced, because the grouting section 32 is tapered, the center line of the grouting hole 321 is not collinear with the center line of the grouting pipe 1, i.e. the grouting hole 321 is inclined with respect to the grouting pipe 1, when the grout is sprayed out from each grouting hole 321, the grouting area can be increased, and the grout can be uniformly injected into the surrounding soil body, thereby improving the grouting quality, and being beneficial to standardizing the construction work and improving the construction work efficiency, the grouting success rate and the pile forming quality of the pile body are ensured, the construction progress is accelerated, and the manufacturing cost is reduced.
It should be noted that the number of the grouting holes 321 may be set according to actual use requirements, and each grouting hole 321 may also be set at unequal intervals to meet the use requirements of different working conditions.
Still further, as shown in fig. 1, the lower portion of the grout pipe 1 is provided with internal threads 13, the connecting section 31 is provided with connecting external threads 311, the outer circumferential surface of the base 12 is provided with base external threads 123, by the thread matching of the connecting external thread 311 and the internal thread 13, the grouting head 3 is connected with the grouting pipe 1, through the thread matching of the external thread 123 and the internal thread 13 of the base, the base 12 is connected with the grouting pipe 1, namely, the base 12 and the grouting head 3 are connected with the grouting pipe 1 through threads, the threaded connection mode is simple and convenient, thereby simplifying and facilitating the disassembly and assembly of the base 12 and the grouting head 3, and enabling the base 12 to be capable of adjusting the installation position, in order to ensure that the first elastic member 23 supports the first piston 21 to seal the first grout outlet 111, the second elastic member 24 supports the second piston 22 to seal the second grout outlet 211, and in addition, the threaded connection mode can also ensure the sealing performance between the grouting pipe 1 and the base 12 and the grouting head 3.
It should be noted that, the base 12 and the grouting head 3 may also be connected to the grouting pipe 1 in a clamping manner, for example, a buckle is disposed on the base 12 and the grouting head 3, a clamping groove is disposed on the grouting pipe 1, and the base 12 and the grouting head 3 are connected to the grouting pipe 1 through the cooperation of the buckle and the clamping groove, or the grouting head 3 is fixedly connected to a grout outlet of the grouting pipe, and in addition, in order to ensure the sealing performance, a sealing ring may be disposed at each connection position.
Further, as shown in fig. 3, the baffle 11 and the grouting pipe 1 are of an integral structure, which can not only ensure the connection strength between the baffle 11 and the grouting pipe 1, but also prevent the grout from flowing out from the gap between the baffle 11 and the grouting pipe 1.
Further, as shown in fig. 1 and 6, the first elastic member 23 and the second elastic member 24 are both springs, that is, each elastic member is a spring, and the springs have good elasticity, and when an acting external force is smaller than the elastic force of the springs, the springs can be rapidly restored to the original state, so that in a state that the pressure of the slurry is smaller than the elastic force of the springs, the first piston 21 can be rapidly restored to seal the first slurry outlet hole 111 under the action of the first elastic member 23, and the second piston 22 can be rapidly restored to seal the second slurry outlet hole 211 under the action of the second elastic member 24, preferably, the first elastic member 23 and the second elastic member 24 are both compression springs, that is, each elastic member is a compression spring.
Of course, the first elastic member 23 and the second elastic member 24 may also be other elastic elements capable of resetting, such as a spring sheet or a bellows with better elasticity, and will not be described herein again.
In an embodiment of the present invention, as shown in fig. 4 and 5, the base 12 is annular, three support ribs 122 are connected to an inner wall surface of the base 12 along a circumferential direction, the three support ribs 122 extend toward an inside of the base 12 and intersect at a point, an intersection point of the three support ribs 122 is a center of the base 12, a slurry passing hole 121 is formed between two adjacent support ribs 122, that is, each slurry passing hole 121 is fan-shaped, preferably, the three support ribs 122 are arranged at equal intervals, so that cross-sectional areas of the slurry passing holes 121 are equal, slurry can uniformly pass through the base 12, a fixed block 1221 for connecting the first elastic member 23 is arranged on each support rib 122, as shown in fig. 1, a lower end of the first elastic member 23 is sleeved outside each fixed block 1221, a lower end of the first elastic member 23 is fixedly connected to a bottom surface of the first piston 21, the second elastic member 24 is located inside the first elastic member 23, the lower end of the second elastic member 24 is connected to the intersection points of the three supporting ribs 122, the lower end of the second elastic member 24 is fixedly connected to the bottom surface of the second piston 22, and the supporting ribs 122 are arranged, so that the first elastic member 23 and the second elastic member 24 can be well supported, and the fixing block 1221 is arranged, so that the first elastic member 23 and the base 12 are more conveniently connected.
Of course, the base 12 may be plate-shaped, and a plurality of through holes may be uniformly formed in the base to form the slurry passing holes 121.
The utility model discloses an in an embodiment, as shown in FIG. 3, first play thick liquid hole 111 is big end down's taper, as shown in FIG. 7 and FIG. 8, the shape of first piston 21 and the shape looks adaptation of first play thick liquid hole 111, and first piston 21 is big end down's taper promptly, and such structure not only is convenient for first piston 21 to insert first play thick liquid hole 111, can make the outer peripheral face of first piston 21 closely laminate with the internal surface of first play thick liquid hole 111 moreover to the sealed effect of first play thick liquid hole 111 has been guaranteed.
Further, as shown in fig. 7, the second slurry outlet 211 is in a tapered shape with a small top and a large bottom, as shown in fig. 9 and 10, the shape of the second piston 22 is matched with the shape of the second slurry outlet 211, that is, the second piston 22 is in a tapered shape with a small top and a large bottom, such a structure is not only convenient for the second piston 22 to be inserted into the second slurry outlet 211, but also enables the outer peripheral surface of the second piston 22 to be closely attached to the inner surface of the second slurry outlet 211, thereby ensuring the sealing effect of the second slurry outlet 211.
The utility model discloses an in an embodiment, consider that outside mud can probably get into slip casting head 3 from slip casting hole 321, thereby block up slip casting pipe 1, in order to solve this problem, can be connected with end cap 4 of dismouting on slip casting hole 321, be in under the non-user state at stake end slip casting shower nozzle, end cap 4 shutoff slip casting hole 321, external mud has effectively been prevented and grouting pipe 1 is grouted from slip casting hole 321, the condition of blockking up slip casting pipe 1 takes place, be in under the user state at stake end slip casting shower nozzle, end cap 4 is pulled down in via slip casting hole 321, so that the blowout of via slip casting hole 321 that the thick liquid can be smooth and easy.
Further, as shown in fig. 14, the plug 4 includes a plug portion 41 and a connecting portion 42, an outer peripheral surface of the plug portion 41 can be in sealing contact with an inner surface of the grouting hole 321, that is, the plug portion 41 can seal the grouting hole 321, as shown in fig. 1, 11, 12 and 13, annular grooves 322 are respectively disposed on positions of the outer peripheral surface of the grouting head 3 corresponding to the grouting holes 321, the connecting portion 42 is embedded in the annular grooves 322, and the arrangement of the annular grooves 322 not only increases a contact area between the plug 4 and the grouting holes 321, thereby making the installation of the plug 4 more reliable, but also makes the dismounting operation of the plug 4 simple and convenient.
The working process of the pile end grouting nozzle of the utility model is specifically described below with reference to the accompanying drawings:
as shown in fig. 1, the plug 4 is firstly removed, then the grouting head 3 of the pile end grouting nozzle is inserted into a preset ground, grouting is started, during grouting, grout enters the grouting pipe 1 from the upper end of the grouting pipe 1, when the pressure of the injected grout is small, the pressure of the grout can only drive the second piston 22 to move downwards to extrude the second elastic member 24 due to the fact that the elastic force of the second elastic member 24 (second spring) is smaller than the elastic force of the first elastic member 23 (first spring), so that the second grout outlet 211 is opened, and due to the fact that the inner diameter of the second grout outlet 211 is small, the flow rate of the grout entering the grouting head 3 through the grouting pipe 1 is small, and therefore the amount of the grout sprayed out of the grouting hole 321 is small; when the pressure of the injected grout is great, the pressure of the grout can drive the first piston 21 to move downwards to extrude the first elastic part 23, thereby opening the first grout outlet 111, because the inner diameter of the first grout outlet 111 is great, the flow of the grout entering the grouting head 3 through the grouting pipe 1 is great, therefore, the amount of the grout sprayed from the grouting hole 321 is also great, according to the pressure of the grout, the size of the grouting flow is controlled, so that the grouting flow meets the preset requirement, after the grouting is completed, the grouting into the grouting pipe 1 is stopped, the first elastic part 23 pushes the first piston 21 to move upwards to block the first grout outlet 111 under the action of the self elasticity, and the second elastic part 24 pushes the second piston 22 to move upwards to block the second grout outlet 211 under the action of the self elasticity, so as to avoid the backflow of the grout.
To sum up, the pile end grouting spray head of the utility model is beneficial to the standardization and standardization of the site construction, can improve the success rate of the post grouting and the pile forming quality, and ensures the safe, high-efficiency and high-quality proceeding of the engineering construction;
the pile end grouting spray head of the utility model supports the first piston to block the first grout outlet through the first elastic part, supports the second piston to block the second grout outlet through the second elastic part, can prevent the reverse flow of slurry from blocking the grouting pipe, and can ensure that the second grout outlet or the first grout outlet can be smoothly opened to complete grouting operation when the grouting pressure is greater than that of the second elastic part or the first elastic part, and can adjust the grouting flow according to the grouting pressure to ensure that the grouting flow meets the use requirements;
the utility model discloses a stake end slip casting shower nozzle, through the slip casting section that sets up the taper on slip casting head, and set up the slip casting hole on the outer peripheral face of slip casting section, make the central line in slip casting hole and the central line of slip casting pipe not collineation, when the thick liquid by each slip casting hole blowout, can increase the slip casting area, and make the thick liquid evenly pour into the soil body on every side, thereby improve the slip casting quality, be favorable to the site operation standardization simultaneously, improve the construction efficiency, guarantee slip casting success rate and pile body and become the stake quality, accelerate the construction progress, reduce the cost.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention. Moreover, it should be noted that the components of the present invention are not limited to the above-mentioned integral application, and various technical features described in the present invention can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention of the present invention.
Claims (10)
1. The utility model provides a stake end slip casting shower nozzle which characterized in that, stake end slip casting shower nozzle includes:
the inner part of the grouting pipe is connected with a baffle and a base at intervals along the grouting direction, the baffle is provided with a first grout outlet, and the base is provided with a grout passing hole;
the adjusting assembly is movably arranged in the first slurry outlet hole and comprises at least two pistons which are sequentially sleeved from inside to outside, each piston is respectively connected with the base through a corresponding elastic piece, and the elasticity of each elastic piece connected with each piston is sequentially increased along the direction from inside to outside;
and the grouting head is connected to the grout outlet end of the grouting pipe, and a grouting hole is formed in the grouting head.
2. The pile tip grouting spray head of claim 1,
the adjusting assembly comprises two pistons, two the pistons are first piston and second piston respectively, with first piston links to each other the elastic component is first elastic component, with the second piston links to each other the elastic component is the second elastic component, first piston can reciprocate set up in the first grout outlet, just the outer peripheral face of first piston can with the sealed laminating of the internal surface in first grout outlet, the second grout outlet has been seted up on the first piston, the second piston can reciprocate set up in the second grout outlet, just the outer peripheral face of second piston can with the sealed laminating of the internal surface in second grout outlet.
3. The pile tip grouting spray head of claim 2,
the first slurry outlet hole is in a conical shape with a small upper part and a big lower part, and the shape of the first piston is matched with that of the first slurry outlet hole;
the second slurry outlet is in a conical shape with a small upper part and a big lower part, and the shape of the second piston is matched with that of the second slurry outlet.
4. The pile tip grouting spray head of claim 2,
the base is annular, the internal face of base is connected with three support ribs that set up at interval along circumference, three support ribs extend and intersect in a point towards the inside of base, form between two adjacent support ribs the thick liquid hole, be equipped with on each support rib and be used for connecting the fixed block of first elastic component.
5. The pile tip grouting spray head of claim 1,
the baffle and the grouting pipe are of an integrated structure.
6. The pile tip grouting spray head of claim 1,
the grouting hole is detachably connected with a plug.
7. The pile tip grouting spray head of claim 6,
the plug comprises a plug part and a connecting part, the outer peripheral surface of the plug part can be in sealing fit with the inner surface of the grouting hole, annular grooves are respectively arranged on the outer peripheral surface of the grouting head corresponding to the positions of the grouting holes, and the connecting part is embedded in the annular grooves.
8. The pile tip grouting spray head of claim 1,
the elastic piece is a spring.
9. The pile tip grouting nozzle of any one of claims 1 to 8,
the grouting head comprises a connecting section and a grouting section which are connected up and down, the connecting section is connected with the grouting pipe, the grouting section is in a conical shape with a large top and a small bottom, and a plurality of grouting holes are formed in the grouting head at intervals along the circumferential direction.
10. The pile tip grouting spray head of claim 9,
the lower part of slip casting pipe is equipped with the internal thread, the linkage segment is equipped with the connection external screw thread, the outer peripheral face of base is equipped with the base external screw thread, through connect the external screw thread with internal thread screw-thread fit, the slip casting head with the slip casting pipe meets, through the base external screw thread with internal thread screw-thread fit, the base with the slip casting pipe meets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921516410.6U CN211171984U (en) | 2019-09-12 | 2019-09-12 | Pile end grouting nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921516410.6U CN211171984U (en) | 2019-09-12 | 2019-09-12 | Pile end grouting nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211171984U true CN211171984U (en) | 2020-08-04 |
Family
ID=71818371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921516410.6U Withdrawn - After Issue CN211171984U (en) | 2019-09-12 | 2019-09-12 | Pile end grouting nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211171984U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499765A (en) * | 2019-09-12 | 2019-11-26 | 中冶京诚工程技术有限公司 | Pile end grouting nozzle |
| CN115030171A (en) * | 2022-06-06 | 2022-09-09 | 中国建筑第七工程局有限公司 | Non-return slip casting pipe joint |
-
2019
- 2019-09-12 CN CN201921516410.6U patent/CN211171984U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499765A (en) * | 2019-09-12 | 2019-11-26 | 中冶京诚工程技术有限公司 | Pile end grouting nozzle |
| CN110499765B (en) * | 2019-09-12 | 2024-02-06 | 中冶京诚工程技术有限公司 | Pile end grouting spray head |
| CN115030171A (en) * | 2022-06-06 | 2022-09-09 | 中国建筑第七工程局有限公司 | Non-return slip casting pipe joint |
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