CN111827679B - High-order thick liquid device of arranging of assembled concrete wall sleeve grout construction - Google Patents
High-order thick liquid device of arranging of assembled concrete wall sleeve grout construction Download PDFInfo
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- CN111827679B CN111827679B CN202010699046.2A CN202010699046A CN111827679B CN 111827679 B CN111827679 B CN 111827679B CN 202010699046 A CN202010699046 A CN 202010699046A CN 111827679 B CN111827679 B CN 111827679B
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- adjusting nut
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- bracket
- annular groove
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
Abstract
The invention provides an easy-to-assemble and easy-to-adjust high-position grout discharging device for grouting construction of an assembled concrete wall sleeve, which comprises a first sleeve, a second sleeve coaxial with the first sleeve, grout discharging holes arranged on the outer circumferential surface of the first sleeve, grouting holes arranged on the outer circumferential surface of the second sleeve and an adjusting device arranged between the first sleeve and the second sleeve, wherein the grout discharging holes are arranged on the outer circumferential surface of the first sleeve; reinforcing steel bars are arranged on one sides of the first sleeve and the second sleeve, which are far away from the adjusting device; the adjusting device adjusts the distance between the first sleeve and the steel bar in the second sleeve; the first sleeve is in a hollow cylindrical shape; the grout discharging hole is communicated with an inner hole of the first sleeve; the second sleeve is in a hollow cylindrical shape; the grouting holes are communicated with the inner hole of the second sleeve, and rubber stoppers are arranged on the sides, far away from the adjusting device, of the first sleeve and the second sleeve.
Description
Technical Field
The invention relates to the technical field of assembled walls, in particular to a high-position slurry discharge device for sleeve grouting construction of an assembled concrete wall.
Background
The steel bar sleeve grouting connection is one of the most main connection forms of the fabricated building. The line-cast shear wall and the precast concrete wallboard are horizontally poured with special high-strength cement-based grouting material through the vertical cast-in-place node and the cast-in-place shear wall, and the special high-strength cement-based grouting material is poured into the gap between the sleeve and the reinforcing steel bar, so that the reinforcing steel bar can be anchored in the sleeve after the grouting material is solidified, and the line-cast shear wall and the precast concrete wallboard are important processes for ensuring the safety of a building structure. Meanwhile, higher requirements are also put on field management and worker skills.
And a single ribbed steel bar is inserted into the metal sleeve, and grouting mixture is injected into the metal sleeve, so that the mixture is hardened to form a whole body and the force-transferring steel bar butt joint connection, namely sleeve grouting connection for short, is realized. When the vertical steel bar sleeve is grouted, grouting is carried out from a grouting opening below the sleeve, and after slurry flows out from a slurry discharge hole above the joint for 1-2 seconds, the joint is plugged by a plug, and certain pressure is kept during plugging. During the grouting construction of the vertical steel bar sleeve, the mixture of the cylindrical grouting material which does not flow out of the grout outlet is not blocked, and the overstock time is not lower than the standard requirement. And the grouting gun port is withdrawn, and the grouting hole is plugged in time to prevent backflow.
The grouting operation process is improper or the operation is not executed according to the correct process, which may cause insufficient grouting anchoring length of the joint, unqualified connection quality, or movement of the joint connection part after the grouting material is solidified, and gaps occur between the grouting material and the sleeve and between the grouting material and the reinforcing steel bar. The deviation of the position of the reinforcing bars and the insufficient insertion length of the reinforcing bars may cause the reinforcing bars to be pulled out and damaged. In the prior art, the marker pen is used for making the insertion depth of the connecting steel bar, and the sleeve is hoisted according to the marked position, so that the field operation process is complex, the precision is poor, the adjustment is not easy, and the operation time is long.
The reinforcing steel bar stress mechanism and the failure mechanism are that when the reinforcing steel bar is pulled by hand, the tension P is transmitted to the grouting material through the bonding effect of the reinforcing steel bar to the grouting material bonding surface, and the grouting material is transmitted to the sleeve through the bonding effect of the grouting material and the sleeve inner wall bonding surface. The bonding effect of the joint surface of the reinforcing steel bar and the grouting material is formed by material adhesion force, surface friction force and mechanical biting force between the rib part on the surface of the reinforcing steel bar and the grouting material, and stress in the reinforcing steel bar is transferred to the grouting material through the joint surface. The damage modes include the external steel bar of the steel bar is broken, the combined surface of the steel bar and the grouting material is broken, and the combined surface of the grouting material and the sleeve is broken. And the two damage forms of the steel bar reinforcement and grouting material joint surface breaking and the joint surface breaking of the grouting material and the sleeve have direct relation with the position relation when the steel bar and the sleeve are installed, and the grouting quality can be influenced by the sleeve leakage and the steel bar eccentricity.
1. Slurry leakage of sleeve
The horizontal sleeve grouting generally adopts an independent grouting method, leakage can occur when the end part of the sleeve, a grouting opening and a grout outlet are not tightly plugged, and a through-long gap defect is formed at the top of the sleeve, so that grouting material can not effectively restrict the reinforcing steel bars to form a full section, the bonding and anchoring effect of the reinforcing steel bars can be reduced, and the performance of the sleeve grouting joint is influenced.
2. Steel bar eccentricity
In the installation of the fabricated structural engineering, the deviation of the wall size, the inclination of the steel bars and the improper adjustment of the positions of the components can cause the eccentricity of the steel bars and the sleeves. If the eccentric reinforcing steel bars are tightly attached to the inner walls of the sleeves at the sides of the grouting opening and the grout outlet, grout can not flow smoothly, the grouting effect is influenced, and the grouting defects at the end part and the middle part are caused.
3. Pretreatment and plugging quality of grouting part
The position correctness of the sleeve is checked through the insertion depth mark marked on the connecting steel bar, the grouting and grout outlet ports of the grouting joint of the sleeve exceed the highest position of the inner wall of the sleeve, and the sealing rubber rings at the two ends are correct in position and free of damage.
In the prior art, the position of a steel bar in a prefabricated wallboard is measured and adjusted to be opposite to the position of a lower steel bar, pouring is carried out through sleeve grouting, the prefabricated wallboard is hoisted in place, and after adjustment and calibration are finished, operations such as seat mortar separation, cabin sealing and the like are carried out. When the warehouse is divided, the positions of upper and lower reinforcing steel bars in the sleeve cannot be properly adjusted and corrected, the grouting quality cannot be measured due to the fact that the reinforcing steel bars are in the sleeve, the control over the construction quality can only be the control before and during construction, and some grouting defects cannot be controlled only by means of personnel construction, such as the defects of eccentricity of the reinforcing steel bars, slurry leakage of the sleeve and the like, so that the grouting defects are structurally avoided.
Disclosure of Invention
In order to solve the grouting sleeve problem in the construction process, the high-position grout discharging device for the grouting construction of the fabricated concrete wall sleeve, which is easy to assemble and adjust, is provided, and comprises a first sleeve, a second sleeve which is coaxial with the first sleeve, grout discharging holes arranged on the outer circumferential surface of the first sleeve, grouting holes arranged on the outer circumferential surface of the second sleeve and an adjusting device arranged between the first sleeve and the second sleeve;
a steel bar is arranged between the first sleeve and the second sleeve;
the adjusting device adjusts the distance of the steel bars between the first sleeve and the second sleeve;
the first sleeve is in a hollow cylindrical shape;
the grout discharging hole is communicated with an inner hole of the first sleeve;
the second sleeve is in a hollow cylindrical shape;
the grouting hole is communicated with an inner hole of the second sleeve;
rubber plugs are arranged on one sides, far away from the adjusting device, of the first sleeve and one side, far away from the adjusting device, of the second sleeve;
the reinforcing steel bar penetrates through the rubber plug.
Further:
the adjusting device comprises an adjusting nut, a first screw rod rotationally connected to the left side of the adjusting nut, a first bracket fixedly connected to one side, far away from the adjusting nut, of the first screw rod, a second screw rod rotationally connected to the right side of the adjusting nut, and a second bracket fixedly connected to one side, far away from the adjusting nut, of the second screw rod;
the adjusting nut is a cylinder, and a threaded hole penetrating through the axial direction is formed in the center of the adjusting nut;
the left threaded hole of the adjusting nut is a left-handed thread;
the right threaded hole of the adjusting nut is a right-handed thread;
the left threaded hole of the adjusting nut is connected with the first screw rod;
the right threaded hole of the adjusting nut is in threaded connection with the second screw rod;
the adjusting nut and the first sleeve are coaxial;
the first screw and the first bracket are arranged in an inner hole of the first sleeve;
the second screw and the second bracket are arranged in the inner hole of the second sleeve;
the reinforcing bar is arranged on the first bracket.
Further:
a first annular groove coaxial with the adjusting nut is formed in the left end face of the adjusting nut;
the section of the first annular groove is T-shaped;
a second annular groove which is the same as the first annular groove is formed in the end face of the right side of the adjusting nut;
a first annular bulge matched with the first annular groove is arranged on the connecting side of the first sleeve and the adjusting nut;
a second annular bulge matched with the second annular groove is arranged on the connecting side of the second sleeve and the adjusting nut;
the adjusting nut is respectively connected with the first sleeve and the second sleeve in a rotating mode.
Further:
the adjusting nut comprises an inner sleeve, an outer sleeve and a connecting rib for connecting the inner sleeve and the outer sleeve;
one end of the inner sleeve is connected with the first screw rod, and the other end of the inner sleeve is connected with the second screw rod;
the aperture of the inner wall of the outer sleeve of the adjusting nut is equal to that of the inner hole of the first sleeve;
the diameters of the inner holes of the first sleeve and the second sleeve are equal;
and spiral grooves which are continuously screwed from right to left are formed in the inner walls of the inner holes of the second sleeve, the adjusting nut and the first sleeve.
Further:
the rubber plug comprises a small circular truncated cone body and a large circular truncated cone body arranged at one end of the small circular truncated cone body;
the small frustum body is tightly matched with inner holes of the first sleeve and the second sleeve;
the rubber buffer is the nylon material.
Further:
an annular groove A is formed in the side wall of the small circular truncated cone;
the inner holes of the first sleeve and the second sleeve are provided with annular grooves B;
a combined gasket is arranged between the annular groove A and the annular groove B;
the combined gasket comprises an elastic sealing ring clamped in the annular groove A of the small circular truncated cone body and a metal gasket sleeved on the outer circumference of the elastic sealing ring;
the metal gasket is clamped between the annular groove A and the annular groove B.
Further:
the first bracket and the second bracket are both provided with inner grooves for placing the reinforcing steel bars;
an iron wire layer is arranged on the inner wall of the inner hole;
the iron wire layer comprises iron wires;
the iron wire inclines to the side close to the adjusting nut;
the angle between the iron wire on the iron wire layer and the axis of the inner hole of the first bracket is 45 degrees;
the inner hole of the first bracket is in clearance fit with the outer circle of the steel bar;
the hole and the reinforcing bar excircle of second bracket are clearance fit.
Further:
the inner hole wall of the slurry discharge hole is provided with a spiral groove communicated with the second sleeve;
and the inner hole wall of the grouting hole is provided with a spiral groove communicated with the first sleeve.
The invention provides a high-position slurry discharge device for grouting construction of an assembled concrete wall sleeve, which has the following beneficial effects:
1. this assembled concrete wall sleeve grout construction high-order mud discharging device is provided with adjusting device, when wall body concatenation about, can insert the telescopic degree of depth to the reinforcing bar and adjust after the reinforcing bar on the wall body inserts the sleeve about, makes the wall body concatenation after the adjustment laminate more for measurement and adjustment work before the wall body concatenation have been avoided, the unable condition of adjusting after also having avoided the wall body installation.
2. This high-order thick liquid device of arranging of assembled concrete wall sleeve grout construction is provided with the reinforcing bar bracket, and the bracket hole is mechanical field's little clearance fit with the reinforcing bar excircle for insert telescopic reinforcing bar and insert along the direction of bracket hole, can not produce the incline, lead to the grout skew center in the sleeve, thereby avoid the abandonment of sleeve grout. The expected high-level strength of sleeve grouting construction can be ensured.
3. This assembled concrete wall sleeve grout construction high-order mud discharging device's sleeve hole is provided with the helicla flute, when the grout filling, makes the grout of extrusion sleeve inner wall can follow the helicla flute and exports to the grout outlet, makes the guiding force that the grout has the grout outlet output, thereby it is smooth and easy to drive whole grout circulation in the sleeve, avoids the grout to finish the back, the incomplete hollow defect of grout in the sleeve, thereby the quality of wall body sleeve grout construction has been improved.
4. This assembled concrete wall sleeve grout construction high-order thick liquid device of arranging easy operation, when wall body concatenation from top to bottom, use can adjust the reinforcing bar in telescopic position with adjusting nut complex general opening spanner, through the left-right hand thread for the reinforcing bar at sleeve both ends is close simultaneously or keeps away from the central point of sleeve length and puts, thereby the clearance of wall body about can adjusting, and is low to construction worker technical requirement, avoids personnel's restriction.
5. The high-order thick liquid device of arranging of this assembled concrete wall sleeve grout construction part is simple workable, and all adopts the standard machined part of mill, has the quality guarantee to the overall precision of wall body. The assembly is simple, the parts are few, and the assembly type consumption reduction requirement is met.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of an adjusting device according to the present invention;
FIG. 3 is a front view of the adjusting nut of the present invention;
FIG. 4 is a schematic view of an assembly structure of the rubber stopper of the present invention;
fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.
Wherein, 1 grouting hole; 2, arranging slurry holes; 3 a first sleeve; 4, adjusting the device; 41 adjusting the nut; 411 a first annular groove; 412 a second annular groove; 413 fan ring through hole; 42 a first screw; 43 a first bracket; 44 a second screw; 45 a second bracket; 46 iron wires; 5, rubber plug; 51 an elastic sealing ring; 52 a metal washer; 6 a second sleeve; 7, reinforcing steel bars; 8 nylon sliding chutes; 9 helical groove.
Detailed Description
It is to be understood that the terms "length," "width," "upper," "lower," "left," "right," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings for convenience in describing the present invention and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as illustrative of the present invention.
The present invention will now be described in detail with reference to the drawings, wherein the specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting.
Example 1
As shown in fig. 1-4, the invention provides a high-level slurry discharge device for grouting construction of an assembly type concrete wall sleeve, which is characterized in that: comprises a first sleeve 3, a second sleeve 6 which is coaxial with the first sleeve 3, a grout outlet 2 which is arranged on the outer circumferential surface of the first sleeve 3, a grout inlet 1 which is arranged on the outer circumferential surface of the second sleeve 6 and an adjusting device 4 which is arranged between the first sleeve 3 and the second sleeve 6; a reinforcing steel bar 7 is arranged on one side of the first sleeve 3 and one side of the second sleeve 4, which are far away from the adjusting device 4; the adjusting device 4 adjusts the distance between the first sleeve 3 and the steel bar 7 in the second sleeve 6; the first sleeve 3 is in a hollow cylindrical shape; the grout outlet 2 is communicated with an inner hole of the first sleeve 3; the second sleeve 6 is in a hollow cylindrical shape; the injected hole 1 with the hole of second sleeve 6 communicates with each other, first sleeve 3 and second sleeve 6 are kept away from the hole of adjusting nut 41 one side all is provided with rubber buffer 5.
When the upper wall body and the lower wall body are in butt joint or the wall body and the wallboard wall body which are vertical to each other are connected, a sleeve grouting connection method is adopted, firstly, reinforcing steel bars 7 in the two wall bodies are respectively inserted into the first sleeve 3 and the second sleeve 6, the two wall bodies are spliced together through adjustment and adjustment of the adjusting device 4, the bin sealing is carried out, then grouting materials are grouted into the second sleeve 6 from the grouting hole 1, flow through the adjusting device 4, are grouted into the first sleeve 3 again, and are discharged from the grout discharge hole 2.
The adjusting device 4 comprises an adjusting nut 41, a first screw rod 42 rotatably connected to the left side of the adjusting nut 41, a first bracket (43) fixedly connected to the first screw rod 42 and far away from one side of the adjusting nut 41, a second screw rod 44 rotatably connected to the right side of the adjusting nut 41, and a second bracket 45 fixedly connected to the second screw rod 42 and far away from one side of the adjusting nut 41; the adjusting nut 41 is a cylinder, and a threaded hole penetrating through the axial direction is formed in the center of the adjusting nut 41; the left threaded hole of the adjusting nut 41 is a left-hand thread; the right threaded hole of the adjusting nut 41 is a right-hand thread; the left threaded hole of the adjusting nut 41 is connected with the first screw rod 42; the right threaded hole of the adjusting nut 41 is in threaded connection with the second screw 44; the first screw 42 and the second screw 44 are coaxial; the adjusting nut 41 and the first sleeve 3 are coaxial; the first screw 42 and the first bracket 43 are arranged in the inner hole of the first sleeve 3;
the second screw 44 and the second bracket 45 are arranged in the inner hole of the second sleeve 6; the reinforcing bars 7 are disposed on the first bracket 43. A flat surface to be engaged with the allen wrench is provided on an outer circumferential surface of the adjusting nut 41.
A first annular groove 411 which is coaxial with the inner hole of the adjusting nut 41 is formed in the left end face of the adjusting nut 41; the cross section of the first annular groove 411 is a T shape rotated by 90 degrees clockwise; a second annular groove 412 which is symmetrical to the first annular groove 411 is formed in the right end face of the adjusting nut 42; a first annular bulge matched with the first annular groove 411 is arranged on the connecting side of the first sleeve 3 and the adjusting nut 41; the connecting side of the second sleeve 6 and the adjusting nut 41 is provided with a second annular bulge matched with the second annular groove 412; the adjusting nut 41 is respectively connected with the first sleeve 3 and the second sleeve 6 in a rotating way.
The concrete movement process is that the steel bar 7 in the lower wall body is inserted into the inner hole of the first sleeve 3 and the inner wall of the inner hole of the first bracket 43 until reaching the bottom surface of the inner hole of the first bracket 43; the steel bar 7 of the upper wall body is inserted into the inner hole of the second sleeve 6 and the inner control wall of the second bracket 45 until reaching the bottom surface of the inner hole of the second bracket 45. At this time, a certain pressure exists between the upper wall body and the lower wall body which are lifted by the crane, the adjusting nut 41 is rotated by a manual open-end wrench, the first sleeve 3 and the second sleeve 6 do not rotate while the adjusting nut 41 rotates clockwise, the first screw rod 42 in left-hand threaded connection with the adjusting nut 41 drives the first bracket 43 to push the reinforcing steel bar to be far away from the center of the adjusting nut 41, meanwhile, the second screw rod 44 in right-hand threaded connection with the adjusting nut 41 drives the second bracket 45 to push the reinforcing steel bar to be far away from the center of the adjusting nut, when the adjusting nut 41 rotates reversely, the first screw rod 42 and the second screw rod 44 retract towards the center of the adjusting nut 41 simultaneously, and due to the gravity effect of the upper wall body on the lower wall body, the distance between the upper wall body and the lower wall body is shortened. The purpose of adjusting the wall to be connected is achieved.
A rubber plug 5 is arranged on the end face of the adjusting nut 41 connected with the first sleeve 3; a rubber plug 5 is arranged on the end face of the adjusting nut 41 connected with the second sleeve 6. The rubber plug 5 comprises a small circular truncated cone and a large circular truncated cone arranged at one end of the small circular truncated cone; the small circular truncated cone is tightly matched with inner holes of the first sleeve 3 and the second sleeve 6; the rubber stopper 5 is made of nylon. An annular groove A is formed in the side wall of the small circular truncated cone; the inner holes of the first sleeve 3 and the second sleeve 6 are provided with annular grooves B; a combined gasket is arranged between the annular groove A and the annular groove B; the combined gasket comprises an elastic sealing ring 51 clamped in the annular groove A of the small circular truncated cone body and a metal gasket 52 sleeved on the outer circumference of the elastic sealing ring 51; the metal washer 52 is clamped between the annular groove a and the annular groove B.
The combination seal gasket uses a combination of a metal gasket 52 and a resilient sealing ring 51 which vulcanizes the sealing lip to the edge of the metal portion to seal the first sleeve 3 with the rubber stopper 5, the sealing lip pressing against a flat surface when the rubber stopper 5 is tightened. The metal gasket 52 ensures a reliable connection and secure fixing of the elements, the thickness limits the compression of the elastic sealing ring 51, eliminating the phenomenon of exceeding a defined torque at the joint, thus ensuring the reliability of the whole sealing system. The internal pressure fixed by the bolt applies force through the seal lip, thereby increasing the sealing force. In addition, the rubber plug 5 and the first bracket 43 and the second bracket 45 play a role in guiding the reinforcing steel bars of the upper wall and the lower wall, so that the reinforcing steel bars 7 are inserted into the center of the device, and the defect that the eccentricity is not easily generated after grouting can be guaranteed.
The inner holes of the first sleeve 3 and the second sleeve 6 are equal; a fan ring through hole is formed in the end face of the adjusting nut 41; the fan ring through holes 413 are distributed on the central circumference of the adjusting nut 41; the great circular arc of the fan ring through hole 413 is equal to the inner hole of the first sleeve 3; and spiral grooves 9 which are continuously and spirally formed from right to left are formed in the inner walls of the inner holes of the second sleeve 6, the adjusting nut 41 and the first sleeve 3. The inner hole wall of the slurry discharge hole 2 is provided with a slurry discharge spiral groove communicated with the spiral groove 9 of the inner hole of the second sleeve 6; and a grouting spiral groove communicated with the first sleeve 3 is formed in the inner hole wall of the grouting hole 1.
When the grouting material filling, make the grouting material of extrusion sleeve inner wall can follow the helicla flute and export to the grout outlet, make the grouting material have the guiding force of grout outlet output to it is smooth and easy to drive whole grouting material circulation in the sleeve, and the back of avoiding the grout to finish, the incomplete hollow defect of grouting material in the sleeve, thereby improved the quality of wall body sleeve grout construction.
The first bracket 43 and the second bracket 45 are both provided with inner grooves for placing the reinforcing steel bars 7; an iron wire layer is distributed on the inner wall of the inner groove; the iron wire layer comprises an iron wire 46 and an adhesive layer, and the iron wire 46 inclines towards the side close to the adjusting nut 41; the angle between the iron wire 46 on the iron wire layer and the axis of the inner hole of the first bracket 43 is 45 degrees; the inner holes of the first bracket 43 and the second bracket 45 are in small clearance fit with the outer circle of the steel bar 7. Iron wire layer bottom is highly glue of exempting from to follow closely for gluing, can with first bracket 43 and 45 fastening connections of second bracket, and iron wire 46 is the elasticity iron wire material, and the iron wire diameter is 1mm, increase reinforcing bar 7 and first bracket 43 and the frictional force of second bracket 45 makes the reinforcing bar more firm.
A nylon sliding layer 8 is arranged between the first sleeves 3; a nylon sliding layer 8 is arranged between the adjusting nut 41 and the second sleeve 6. The setting of nylon sliding layer 8 can reduce the frictional force between adjusting nut 41 and first sleeve 3 and second sleeve 6, when reducing constructor manually operation, changes in the operation more easily, and is more laborsaving.
Example 2
As shown in fig. 5, the outer diameter of the second sleeve 6 is greater than the outer diameter of the first sleeve 3, the inner diameter of the second sleeve 6 is greater than the inner diameter of the first sleeve 3, the operation and movement process of the embodiment is the same as that of embodiment 1, the embodiment has the advantages that grouting material is injected from the grouting hole 1, due to the change of the inner diameter, grouting material in the second sleeve 6 has pressure to grouting material in the second sleeve 6 when grouting material in the second sleeve 6 is injected into the first sleeve 3, grouting material in the second sleeve 6 can be more filled, and in addition, due to the fact that the inner walls of the inner holes of the first sleeve 3 and the second sleeve 6 are provided with communicated spiral holes 9, the grouting material in the sleeves has acting force in the direction of the spiral grouting holes, and jamming or blocking cannot be generated. Thirdly, because first sleeve 3 and second sleeve 6 form the step-like for this grout structure not only makes whole fabricated building can bear horizontal shear force and the pulling force of building height direction, has improved the intensity of this building.
While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various modifications, changes, substitutions and alterations can be made to the embodiments without departing from the principles of the present invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an assembled concrete wall sleeve grout construction high-order mud discharging device which characterized in that: the device comprises a first sleeve (3), a second sleeve (6) coaxial with the first sleeve (3), a slurry discharge hole (2) arranged on the outer circumferential surface of the first sleeve (3), a grouting hole (1) arranged on the outer circumferential surface of the second sleeve (6) and an adjusting device (4) arranged between the first sleeve (3) and the second sleeve (6);
a steel bar (7) is arranged between the first sleeve (3) and the second sleeve (6);
the adjusting device (4) adjusts the distance of the steel bar (7) between the first sleeve (3) and the second sleeve (6); the first sleeve (3) is in a hollow cylindrical shape;
the grout discharging hole (2) is communicated with an inner hole of the first sleeve (3);
the second sleeve (6) is in a hollow cylindrical shape;
the grouting hole (1) is communicated with an inner hole of the second sleeve (6);
rubber plugs (5) are arranged on one sides, far away from the adjusting device (4), of the first sleeve (3) and the second sleeve (6);
the reinforcing steel bar (7) penetrates through the rubber plug (5);
the adjusting device (4) comprises an adjusting nut (41), a first screw rod (42) rotatably connected to the left side of the adjusting nut (41), a first bracket (43) fixedly connected to one side, far away from the adjusting nut (41), of the first screw rod (42), a second screw rod (44) rotatably connected to the right side of the adjusting nut (41), and a second bracket (45) fixedly connected to one side, far away from the adjusting nut (41), of the second screw rod (44);
the adjusting nut (41) is a cylinder, and a threaded hole penetrating through the axial direction is formed in the center of the adjusting nut (41);
the left threaded hole of the adjusting nut (41) is a left-hand thread;
the right threaded hole of the adjusting nut (41) is a right-hand thread;
the left threaded hole of the adjusting nut (41) is connected with the first screw rod (42);
the right threaded hole of the adjusting nut (41) is in threaded connection with the second screw (44);
the adjusting nut (41) and the first sleeve (3) are coaxial;
the first screw rod (42) and the first bracket (43) are arranged in an inner hole of the first sleeve (3);
the second screw (44) and the second bracket (45) are arranged in the inner hole of the second sleeve (6);
the reinforcing bar (7) is disposed on the first bracket (43).
2. The assembled concrete wall sleeve grouting construction high-position slurry discharging device according to claim 1, characterized in that:
a first annular groove (411) which is coaxial with the adjusting nut (41) is formed in the left end face of the adjusting nut (41);
the cross section of the first annular groove (411) is T-shaped;
the right end face of the adjusting nut (41) is provided with a second annular groove (412) which is the same as the first annular groove (411);
a first annular bulge matched with the first annular groove (411) is arranged on the connecting side of the first sleeve (3) and the adjusting nut (41);
a second annular bulge matched with the second annular groove (412) is arranged on the connecting side of the second sleeve (6) and the adjusting nut (41);
the adjusting nut (41) is respectively connected with the first sleeve (3) and the second sleeve (6) in a rotating mode.
3. The assembled concrete wall sleeve grouting construction high-position slurry discharging device according to claim 1, characterized in that:
the adjusting nut (41) comprises an inner sleeve, an outer sleeve and connecting ribs for connecting the inner sleeve and the outer sleeve;
one end of the inner sleeve is connected with a first screw rod (42), and the other end of the inner sleeve is connected with a second screw rod (44);
the aperture of the inner wall of the outer sleeve of the adjusting nut (41) is equal to that of the inner hole of the first sleeve (3);
the inner hole diameters of the first sleeve (3) and the second sleeve (6) are equal;
and spiral grooves (9) which are continuously and spirally formed from right to left are formed in the inner walls of the inner holes of the second sleeve (6), the adjusting nut (41) and the first sleeve (3).
4. The assembled concrete wall sleeve grouting construction high-position slurry discharging device according to claim 1, characterized in that:
the rubber plug (5) comprises a small circular truncated cone and a large circular truncated cone arranged at one end of the small circular truncated cone;
the small circular truncated cone is tightly matched with inner holes of the first sleeve (3) and the second sleeve (6);
the rubber stopper (5) is made of nylon.
5. The assembled concrete wall sleeve grouting construction high-position slurry discharging device according to claim 4, characterized in that:
an annular groove A is formed in the side wall of the small circular truncated cone;
the inner holes of the first sleeve (3) and the second sleeve (6) are provided with annular grooves B;
a combined gasket is arranged between the annular groove A and the annular groove B;
the combined gasket comprises an elastic sealing ring (51) clamped in the annular groove A of the small circular truncated cone body and a metal gasket (52) sleeved on the outer circumference of the elastic sealing ring (51);
the metal gasket (52) is clamped between the annular groove A and the annular groove B.
6. The assembled concrete wall sleeve grouting construction high-position slurry discharging device according to claim 1, characterized in that:
the first bracket (43) and the second bracket (45) are respectively provided with an inner groove for placing the reinforcing steel bar (7);
an iron wire layer is arranged on the inner wall of the inner hole;
the iron wire layer comprises iron wires (46);
the iron wire (46) inclines to the side close to the adjusting nut (41);
the angle between the iron wire (46) on the iron wire layer and the axis of the inner hole of the first bracket (43) is 45 degrees;
the inner hole of the first bracket (43) is in clearance fit with the outer circle of the steel bar;
the inner hole of the second bracket (45) is in clearance fit with the outer circle of the steel bar.
7. The assembled concrete wall sleeve grouting construction high-position slurry discharging device according to claim 1, characterized in that:
the inner hole wall of the slurry discharge hole (2) is provided with a spiral groove communicated with the second sleeve (6);
the inner hole wall of the grouting hole (1) is provided with a spiral groove communicated with the first sleeve (3).
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