CN114753564A - Combined multifunctional auxiliary part of grouting sleeve for connecting reinforcing steel bars and combined use method - Google Patents
Combined multifunctional auxiliary part of grouting sleeve for connecting reinforcing steel bars and combined use method Download PDFInfo
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- CN114753564A CN114753564A CN202110038182.1A CN202110038182A CN114753564A CN 114753564 A CN114753564 A CN 114753564A CN 202110038182 A CN202110038182 A CN 202110038182A CN 114753564 A CN114753564 A CN 114753564A
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- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 53
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 239000011440 grout Substances 0.000 claims description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 229910000639 Spring steel Inorganic materials 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a combined multifunctional auxiliary of a grouting sleeve for connecting reinforcing steel bars and a combined use method, wherein the combined multifunctional auxiliary comprises a rubber plug, a middle cylinder part and a rubber column which are connected in a combined manner; a metal bushing is arranged in one end, close to the middle cylinder part, of the rubber plug, and a plurality of buckles are arranged on the exposed part of the metal bushing and are clamped and sleeved in the first end part of the middle cylinder part; a boss is arranged at one end, close to the middle cylinder part, of the rubber column and is connected into the second end part of the middle cylinder part through threads; the end where the rubber column is located is sleeved with a positioning screw rod with a compression check ring, the positioning screw rod penetrates through the rubber column and the boss and extends into the middle cylinder part, and the exposed part of the positioning screw rod is detachably sleeved with a gasket and a locking nut; the rubber plug can be replaced at any time in the splitting structure, is convenient to install and is easy to split.
Description
Technical Field
The invention relates to the technical field of grouting sleeves, in particular to a combined multifunctional auxiliary of a grouting sleeve for connecting reinforcing steel bars and a combined use method thereof.
Background
The grouting sleeve for connecting the reinforcing steel bars is used as an important part for connecting the reinforcing steel bars in the field construction process, and is a part for connecting the deformed steel bars in adjacent reinforced concrete building components. Along with the development of the assembly type building, the application of the assembly type building is mature, the grouting sleeve solves the problem that the connection of the assembled on-site assembled steel bars is inconvenient, the use of the grouting sleeve enables on-site assembly construction in the building industry to be possible, the building construction efficiency is greatly improved, and the time, labor and site cost are saved.
No matter in the prefab factory or in the assembly of scene, all indispensable be sealing rubber stopper and rubber column, realized grout sleeve location on prefabricated template end plate through the rubber column to play sealed effect, prevent that the pouring in-process grout material from getting into inside the sleeve. The sealing rubber plug realizes the function of preventing the grouting material from entering the sleeve along the inner wall of the sleeve and the outer wall of the reinforcing steel bar, and plays a role in sealing. The unable taking out of sealed plug usually can stay in the building forever, and is extremely extravagant, and the rubber buffer that is detained in the grout sleeve forever simultaneously can cause the inside discontinuous defect of building material.
There are also integral removable rubber sealing elements, such as the one disclosed in the chinese patent application (publication No. CN111945959A) in 2020, a multi-functional auxiliary for machining fully grouted sleeves, and a method for assembling and disassembling the same, wherein the sealing auxiliary has a middle cylinder, a first end plug portion and a second end plug portion which are integrally formed; although the multifunctional auxiliary is simple in assembling and disassembling method and can be integrally taken out of the grouting sleeve, the multifunctional auxiliary is integrally made of rubber, the problem of insufficient supporting strength exists, the multifunctional auxiliary is easy to clamp when being assembled and taken out, and the sealing auxiliary is easy to deform after a steel bar is inserted; in addition, the first end plug part often rubs with the inner wall of the grouting sleeve in the assembling and disassembling process, is an easily worn part and short in wearing period, and the wearing degrees and the periods of the first end plug part, the middle cylinder and the second end plug part are obviously different.
Disclosure of Invention
The invention aims to provide a combined multifunctional auxiliary of a grouting sleeve for connecting reinforcing steel bars and a combined use method thereof, aiming at the problems in the prior art.
In order to realize the purpose, the invention adopts the technical scheme that:
a combined multifunctional auxiliary of a grouting sleeve for connecting reinforcing steel bars comprises a rubber plug, a middle cylinder part and a rubber column which are connected in a combined manner; a metal bushing is arranged in one end, close to the middle cylinder part, of the rubber plug, and a plurality of buckles are arranged on the exposed part of the metal bushing and are clamped and sleeved in the first end part of the middle cylinder part; a boss is arranged at one end, close to the middle cylinder part, of the rubber column and is connected into the second end part of the middle cylinder part through threads; the end sleeve where the rubber column is located is provided with a positioning screw rod with a compression check ring, the positioning screw rod penetrates through the rubber column and the boss and extends into the middle cylinder part, and the exposed part of the positioning screw rod is detachably sleeved with a gasket and a locking nut.
This multi-functional auxiliary will the rubber buffer middle cylinder part with the rubber column split is the combination formula for this multi-functional auxiliary has following advantage: the rubber plug is an easily worn part, so that the rubber plug is short in wear period and can be replaced at any time in a disassembly structure; the middle column body part is a steel part which is a permanent use part and can not be replaced, so that the cost is saved; the metal bushing is embedded in the rubber plug to play a role of skeleton support, so that the rubber plug and the middle cylinder part are convenient to mount and easy to disassemble; after the extrusion amount of the rubber column is calculated, the rubber column can be accurately positioned through the positioning screw rod, and the rubber column cannot be excessively extruded, so that the service life of the rubber column is prolonged.
The split combined structure has low manufacturing requirements on the grouting sleeve, and the end part of a grout outlet of the grouting sleeve does not need to be particularly rolled, so that the production difficulty of the grouting sleeve can be reduced; compared with the existing integral sealing auxiliary, the multifunctional auxiliary has better supporting strength, is not easy to be clamped when being put in and taken out, and is easy to assemble and disassemble. In addition, after the reinforcing steel bars are inserted, the middle column body part of the multifunctional auxiliary element cannot be deformed by extrusion and has enough strength and rigidity.
Due to the arrangement of the buckle on the metal bushing, the limit connection between the metal bushing and the first end part can be released by pressing or shifting the buckle, the rubber plug can be detached by pulling upwards, if the rubber plug is seriously worn, the metal bushing in the rubber plug can be directly replaced, and the metal bushing can be reused after being completely detached; for the rubber buffer, the rubber column wearing and tearing are less, can used repeatedly longer a period, also can change alone if there is the damage.
Furthermore, the metal bushing is cylindrical and is provided with a clamping part and an embedding part, the clamping part is sleeved with the first end part, and the embedding part is embedded in the rubber plug; the embedded part is circumferentially arrayed with a plurality of through holes, and the periphery of the tail end of the embedded part is provided with a plurality of outward-turned radial spokes; (ii) a The through holes and the radial spokes enable the metal bushing and the rubber plug to be firmly combined; the clamping portion is circumferentially provided with a plurality of openings, the openings are provided with the buckles, and the first end portion is circumferentially provided with a plurality of clamping grooves in matched connection with the buckles.
The through holes of the array can reduce the weight of the metal bushing, reduce the use of metal materials and also facilitate the combination with the rubber plug to form a compact embedded structure, when the rubber plug is molded, rubber can flow among the through holes to fully fill the through holes, after the rubber plug is cured and molded, the rubber in the through holes and the rubber on the body are integrated to form an integral structure of the rubber plug, and the rubber radially penetrating through the through holes can limit and pull the metal bushing, so that the metal bushing cannot fall off before the rubber plug is worn and damaged; meanwhile, the radial spokes are arranged in a circle in the circumferential direction, so that the axial acting force between the metal bushing and the rubber plug can be further improved, the axial acting force between the rubber plug and the metal bushing is ensured in the processes of axial drawing and pressing, and the stability is better; and the deformation requirements of radial expansion and axial compression of the rubber plug are not influenced by the arrangement.
The buckle with the cooperation of draw-in groove, it can restrict and connect to push down the rubber buffer, but does not influence the deformation of rubber buffer, moreover the draw-in groove is run through the perisporium of first end, is convenient for release the block in the dismantlement formula.
Furthermore, the through holes are provided with a plurality of circles at equal intervals, and the radial spokes are distributed in a central symmetry manner and are arranged at the edges of the areas between the adjacent through holes. The arrangement ensures balanced stress and better stability.
Furthermore, the buckle is a plurality of that centrosymmetric set up, the buckle sets up for inclining outwards.
Further, the metal bushing is a connecting piece made of stainless spring steel, and the middle cylinder part is a hollow steel part. The metal bushing is made of stainless spring steel materials, so that the metal bushing has elastic deformation capacity, particularly the buckle part has better elasticity, and is convenient to be matched and connected with the clamping groove; the metal lining is made of stainless steel materials with strength and elasticity.
Furthermore, a step for clamping is arranged on the circumference of the first end part. The second end part is connected with the boss through threads, and a spigot is arranged at the thread withdrawal position of the second end part; can be right the boss is spacing, avoids after the locking the axial displacement of boss.
Further, the external diameter of rubber buffer is the reducing setting, is close to the external diameter of the one end of metal bush is less than the external diameter of the other end, and is greater than the external diameter of middle cylinder part, the internal diameter of rubber buffer is less than the internal diameter of middle cylinder part. Such setting is more favorable to the deformation of rubber buffer, ensures simultaneously that the rubber buffer is located all the time the top of first end, the terminal portion global with the terminal portion global butt of rubber buffer forms the support.
Further, the inner diameter of the rubber column is smaller than the inner diameter of the middle cylinder part, the outer diameter of the rubber column is larger than the outer diameter of the middle cylinder part, the end part of the rubber column is abutted against the second end part, and the boss is located in the second end part; the inner diameters of the boss and the rubber column are smaller than the outer diameter of the compression retainer ring. In a similar way, the arrangement is favorable for deformation of the rubber column, and meanwhile, the rubber column is always positioned below the second end part, the circumferential surface of the end part of the second end part and the circumferential surface of the end part of the boss are abutted with the circumferential surface of the end part of the rubber column to form a support, and the support surface at the position is enlarged to be favorable for extrusion deformation of the rubber column.
Further, the rubber plug, the middle cylinder part, the rubber column and the positioning screw are coaxially arranged; the positioning screw comprises a threaded part and a polished rod part, the pressing retainer ring is arranged on one side of the polished rod part close to the threaded part, and the outer diameter of the polished rod part is larger than that of the threaded part and is matched with the inner diameter of the rubber column.
By adopting the structure, the positioning screw can tighten the multifunctional accessory, the thread part can not be contacted with the inner peripheral wall of the rubber column, and the abrasion of the rubber column is reduced.
Furthermore, the multifunctional auxiliary part is arranged in a grouting sleeve, the grouting sleeve is provided with a grouting opening and a grout discharging opening, the middle column body is partially sleeved in the grouting sleeve and keeps a gap with the inner wall of the grouting sleeve, the first end part is positioned on one side of the grout discharging opening, and the second end part is positioned on one side of the grouting opening; the lower tip of set screw is followed grout sleeve's lower extreme stretches out, the reinforcing bar is inserted to first end, the reinforcing bar with the positioning screw butt location, the outer tip of rubber buffer with grout sleeve's tip parallel and level the periphery wall of rubber buffer with grout sleeve's internal perisporium is closely laminated, the outer tip of rubber post with grout sleeve's tip parallel and level the periphery wall of rubber post with grout sleeve's internal perisporium is closely laminated.
A combined use method of a combined multifunctional auxiliary of a grouting sleeve for connecting reinforcing steel bars comprises an installation step and a disassembly step;
the mounting steps are as follows: embedding a metal bushing with a buckle in the rubber plug, and forming for later use; preparing a hollow middle cylinder part, and arranging clamping areas at a first end and a second end of the middle cylinder part; sleeving a metal bushing of the rubber plug on the first end part and clamping the buckle with the clamping groove of the first end part;
Sleeving the middle cylinder part and the rubber plug into a grouting sleeve, wherein the rubber plug and the first end part are positioned on one side of a grout outlet of the grouting sleeve, a positioning screw, a boss and a rubber column are sequentially inserted from the other end of the grouting sleeve, the part of the positioning screw with a compression check ring is sleeved into the middle cylinder part, the boss is clamped at the second end part, the rubber column is abutted against the second end part and positioned in the grouting sleeve, the grouting sleeve is integrally installed on a prefabricated part template end plate, a gasket and a locking nut are sleeved on the exposed threaded part of the positioning screw, and after locking, the end parts of the grouting sleeve and the rubber column are tightly attached to the prefabricated part template end plate;
inserting a reinforcing steel bar into the middle column body part from the rubber plug and the first end part and abutting against the positioning screw rod, wherein after the reinforcing steel bar is pressed, the end part of the rubber plug is flush with the end part of the grouting sleeve; after the installation of the steel bars is finished, grouting is carried out on the outer part of the grouting sleeve to finish the pouring of the whole prefabricated part;
the disassembling step is as follows: after the whole prefabricated part is poured and solidified, loosening the locking nut, sequentially detaching the locking nut and the gasket from the lower part of the prefabricated part template end plate, pulling the outside of the grouting sleeve to the rear part of the prefabricated part template end plate by the positioning screw rod, and drawing the rubber column, the boss and the middle cylinder part together with the rubber plug out of the grouting sleeve under the action of the compression check ring by the positioning screw rod.
Adopt the multi-functional auxiliary of this structure with grout sleeve's cooperation is used, has better flexibility and sealing performance concurrently, can avoid in the prefabrication assembly process grout sleeve outside thick liquids get into grout sleeve's inside to after the prefabrication assembly is accomplished, follow will among the grout sleeve multi-functional auxiliary is whole to be taken out, realizes the used circulation of rubber buffer, middle cylinder part, rubber column, positioning screw, lock nut and gasket, when practicing thrift the cost for the customer, has practiced thrift a large amount of resources for the society.
Compared with the prior art, the invention has the beneficial effects that: 1. this multi-functional auxiliary will the rubber buffer middle cylinder part with the rubber column split is the combination formula for this multi-functional auxiliary has following advantage: the rubber plug is an easily worn part, so that the rubber plug is short in wear period and can be replaced at any time in a disassembly structure; the middle column body part is a steel part which is a permanent use part and can not be replaced, so that the cost is saved; the metal bushing is embedded in the rubber plug to play a role of framework support, and the rubber plug and the middle cylinder are convenient to mount and easy to disassemble due to the buckle design; after the extrusion amount of the rubber column is calculated, the rubber column can be accurately positioned through the positioning screw rod, the rubber column cannot be excessively extruded, and the service life of the rubber column is prolonged; 2. the split combined structure has the advantages that the manufacturing requirement on the grouting sleeve is reduced, special rolling is not needed at the end part of the grout outlet of the grouting sleeve, and the production difficulty of the grouting sleeve can be reduced; compared with the existing integral sealing auxiliary, the multifunctional auxiliary has better supporting strength, is not easy to be clamped when being put in and taken out, and is easy to assemble and disassemble; 3. after the reinforcing steel bars are inserted, the middle column body part of the multifunctional auxiliary is extruded and cannot deform, and the multifunctional auxiliary has enough strength and rigidity; 4. the metal bushing adopting the structure has the advantages of light weight, less material consumption, good connection strength and high stability, and can not influence the deformation requirements of radial expansion and axial compression of the rubber plug, and is easy to clamp and disassemble.
Drawings
Fig. 1 is an overall view illustrating a multi-functional composite auxiliary for a grout sleeve for connecting reinforcing bars according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a schematic view showing the connection of the rubber stopper and the metal bush according to the present invention;
FIG. 4 is a perspective view of the metal bushing of the present invention;
FIG. 5 is a schematic view showing a state before the multifunctional auxiliary of the present invention is installed in a grout sleeve and locked;
FIG. 6 is a schematic view showing a state where the multifunctional auxiliary of the present invention is mounted in a grout sleeve and locked;
FIG. 7 is a schematic view showing a state where the multifunctional auxiliary of the present invention is installed in a grout sleeve after installing reinforcing bars;
in the figure: 1. a rubber plug; 2. a middle cylindrical portion; 201. a first end portion; 202. a second end portion; 203. a card slot; 3. a rubber column; 4. a metal bushing; 401. an embedding part; 402. a fastening part; 403. a through hole; 404. radial spokes; 405. an opening; 5. buckling; 6. a boss; 7. positioning a screw rod; 8. pressing the retainer ring; 9. a gasket; 10. locking the nut; 11. grouting a sleeve; 12. a pulp discharge port; 13. grouting ports; 14. a prefabricated member template end plate; 15. and (5) reinforcing steel bars.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
as shown in fig. 1 and 2, a combined type multifunctional auxiliary of a grouting sleeve for connecting reinforcing steel bars comprises a rubber stopper 1, a middle cylinder part 2 and a rubber cylinder 3 which are combined and connected; a metal bushing 4 is arranged in one end, close to the middle cylinder part 2, of the rubber plug 1, and a plurality of buckles 5 are arranged on the exposed part of the metal bushing 4 and are clamped and sleeved in the first end part 201 of the middle cylinder part 2; a boss 6 is arranged at one end of the rubber column 3 close to the middle column body part 2, and the boss 6 is connected in the second end part 202 of the middle column body part 2 through threads; the rubber column is characterized in that a positioning screw 7 with a compression check ring 8 is sleeved at the end of the rubber column 3, the positioning screw 7 penetrates through the rubber column 3 and the boss 6 and extends into the middle cylinder part 2, and a gasket 9 and a locking nut 10 are detachably sleeved at the exposed part of the positioning screw 7.
This multi-functional auxiliary will the rubber buffer 1 middle cylinder part 2 with 3 splits of rubber column are the combination formula for this multi-functional auxiliary has following advantage: the rubber plug 1 is an easily worn part, so that the rubber plug is short in wear period and can be replaced at any time in a split structure; the middle column body part 2 is a steel part which is a permanent use part and can not be replaced, so that the cost is saved; the metal bushing 4 is embedded in the rubber plug 1 to play a role of framework support, so that the rubber plug 1 and the middle cylinder part 2 are convenient to mount and easy to disassemble; right after the extrusion amount of the rubber column 3 is calculated, the rubber column 3 can be accurately positioned through the positioning screw 7, and the rubber column 3 cannot be excessively extruded, so that the service life of the rubber column 3 is prolonged.
The split combined structure has low manufacturing requirements on the grouting sleeve, and the end part of the grout outlet of the grouting sleeve does not need to be particularly rolled, so that the production difficulty of the grouting sleeve can be reduced; compared with the existing integral sealing auxiliary, the multifunctional auxiliary has better supporting strength, is not easy to block when being put in and taken out, and is easy to assemble and disassemble. In addition, after the steel bar is inserted, the middle column body part of the multifunctional auxiliary is extruded and cannot be deformed, and the multifunctional auxiliary has enough strength and rigidity.
Due to the arrangement of the buckle 5 on the metal bushing 4, the limit connection between the metal bushing 4 and the first end portion 201 can be released by pressing or shifting the buckle 5, the rubber plug 1 can be detached by pulling upwards, if the rubber plug 1 is seriously worn, the metal bushing 4 in the rubber plug 1 can be directly replaced, and the metal bushing 4 can be reused after being completely detached; for rubber buffer 1, 3 wearing and tearing of rubber column are less, can used repeatedly for a long period, also can change alone if there is the damage.
Further, as shown in fig. 3 and 4, the metal bushing 4 is cylindrical and has an engaging portion 402 and an embedding portion 401, the engaging portion 402 is sleeved on the first end portion 201, and the embedding portion 401 is embedded in the rubber stopper 1; the embedding part 401 is circumferentially arrayed with a plurality of through holes 403, and the periphery of the tail end of the embedding part 401 is provided with a plurality of outward-turned radial spokes 404; the clamping portion 402 is circumferentially provided with a plurality of rectangular openings 405, the openings 405 are provided with the buckles 5, and the first end portion 201 is circumferentially provided with a plurality of clamping grooves 203 which are matched and connected with the buckles 5.
The through holes 403 of the array can reduce the weight of the metal bushing 4, reduce the use of metal materials, and also facilitate the formation of a tight embedded structure by compounding with the rubber plug 1, when the rubber plug 1 is molded, rubber can flow among the through holes 403 to fully fill the through holes, after curing molding, the rubber in the through holes is integrated with the rubber on the body to form an integral structure of the rubber plug, and the rubber radially penetrating through the through holes 403 can limit and pull the metal bushing 4, so that the metal bushing 4 cannot fall off before the rubber plug 1 is worn and damaged; meanwhile, the radial spokes 404 are circumferentially arranged in a circle, so that the axial acting force between the metal bushing 4 and the rubber plug 1 and the binding force between the metal bushing and the rubber plug 1 can be further improved, the axial acting force and the binding force between the rubber plug 1 and the metal bushing 4 are ensured in the axial drawing and pressing processes, and the stability is better; moreover, the deformation requirements of radial expansion and axial compression of the rubber plug 1 are not influenced by the arrangement.
The cooperation of the buckle 5 and the clamping groove 203 can limit and connect the rubber plug 1 by pressing down, but the deformation of the rubber plug is not affected, and the clamping groove 203 penetrates through the peripheral wall of the first end 201, so that the clamping can be conveniently released in a detachable mode.
Further, the through holes 403 are provided with a plurality of circles at equal intervals, and the radial spokes 404 are distributed with central symmetry and are arranged at the edge of the area between the adjacent through holes 403. The arrangement ensures balanced stress and better stability.
Further, buckle 5 is a plurality of centrosymmetric setting, buckle 5 sets up to leaning out.
Further, the metal bushing 4 is a connecting member made of stainless spring steel, and the middle cylinder portion 2 is a hollow steel member. The metal bushing 4 is made of stainless spring steel, so that the metal bushing 4 has elastic deformation capacity, particularly, the part of the buckle 5 has good elasticity, and is convenient to be connected with the clamping groove 203 in a matched mode.
Further, a step for engaging is provided on the circumference of the first end portion 201. The second end part 202 is connected with the boss 6 through threads, and a spigot is arranged at the thread withdrawal position of the second end part 202; can be right boss 6 carries on spacingly, avoids after the locking boss 6's axial displacement.
Further, the external diameter of rubber buffer 1 is the reducing setting, is close to the external diameter of the one end of metal bush 4 is less than the external diameter of the other end, and is greater than the external diameter of middle cylinder part 2, the internal diameter of rubber buffer 1 is less than the internal diameter of middle cylinder part 2. With such an arrangement, the deformation of the rubber plug 1 is more facilitated, and at the same time, the rubber plug 1 is always located above the first end 201, and the circumferential surface of the end of the first end 201 abuts against the circumferential surface of the lower end of the rubber plug 1 to form a support.
Further, the inner diameter of the rubber column 3 is smaller than the inner diameter of the middle cylinder part 2, and the outer diameter is larger than the outer diameter of the middle cylinder part 2, the end of the rubber column 3 abuts against the second end 202, and the boss 6 is located in the second end 202; the inner diameters of the boss 6 and the rubber column 3 are smaller than the outer diameter of the pressing retainer ring 8. Similarly, this arrangement facilitates deformation of the rubber column 3 while ensuring that the rubber column 3 is always positioned below the second end 202, and the circumferential surface of the lower end of the second end 202 abuts against the circumferential surface of the upper end of the rubber column 3 to form a support.
Further, the rubber plug 1, the middle cylinder part 2, the rubber column 3 and the positioning screw 7 are coaxially arranged; the positioning screw 7 comprises a threaded part and a polished rod part, the side of the polished rod part close to the threaded part is provided with the compression retainer ring 8, and the outer diameter of the polished rod part is larger than that of the threaded part and is matched with the inner diameter of the rubber column 3.
By adopting the structure, the multifunctional auxiliary can be tensioned by the positioning screw 7, and the thread part can not contact with the inner peripheral wall of the rubber column 3, so that the abrasion of the rubber column 3 is reduced.
The second embodiment:
the embodiment provides a method for matching the multifunctional auxiliary part with the grouting sleeve in the first embodiment.
As shown in fig. 5, the multifunctional accessory is disposed in a grouting sleeve 11, the grouting sleeve 11 has a grouting opening 13 and a grout outlet 12, the middle cylinder part 2 is sleeved in the grouting sleeve 11 and keeps a gap with the inner wall of the grouting sleeve 11, the first end 201 is located on one side of the grout outlet 12, and the second end 202 is located on one side of the grouting opening 13; the grouting sleeve 11 is placed on a prefabricated template end plate 14, the lower end part of the positioning screw 7 extends out of the lower end of the grouting sleeve 11, and a gasket 9 and a locking nut 10 are sleeved on the exposed part of the positioning screw 7.
As shown in fig. 6, the locking nut 10 is locked to make the positioning screw 7 generate a downward pressure, at this time, the rubber column 3 and the rubber plug 1 are both in a state of compressing radially expanded and axially contracted, and the upper end of the rubber plug 1 is exposed to a small section.
As shown in fig. 7, first end 201 inserts reinforcing bar 15, reinforcing bar 15 with positioning screw 7 butt location, rubber buffer 1's outer tip with the upper end parallel and level of grout sleeve 11 the periphery wall of rubber buffer 1 with the internal perisporium of grout sleeve 11 closely laminates, simultaneously the outer tip of rubber column 3 also with the lower tip parallel and level of grout sleeve 11 the periphery wall of rubber column 3 with the internal perisporium of grout sleeve 11 closely laminates.
Treat that whole prefabricated component pouring is accomplished and the back that solidifies, will lock nut 10 loosens, follows in proper order the below of prefab template end plate 14 is dismantled lock nut 10 gasket 9, dismantle behind prefab template end plate 14 the outside pulling of grout sleeve 11 positioning screw 7, positioning screw 7 is in will under the effect of compressing tightly retaining ring 8 the rubber column 3 middle cylinder part 2 is followed together rubber buffer 1 is followed take out in the grout sleeve 11, accomplishes the dismantlement of this multi-functional auxiliary promptly and retrieves.
After repetitious usage, because rubber buffer 1 all can rub with the inner wall of grout sleeve 11 when dismantling at every turn, rubber buffer 1 appears wearing and tearing back, presses buckle 5 will rubber buffer 1 follows middle cylinder part 2 is gone up to take out and is changed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The combined use method of the grouting sleeve for connecting the reinforcing steel bars is characterized by comprising an installation step and a disassembly step;
the mounting steps are as follows: embedding a metal bushing with a buckle in the rubber plug, and forming for later use; preparing a hollow middle cylinder part, and arranging clamping areas at a first end and a second end of the middle cylinder part; sleeving a metal bushing of the rubber plug on the first end part and clamping the buckle with the clamping groove of the first end part;
sleeving the middle cylinder part and the rubber plug into a grouting sleeve, wherein the rubber plug and the first end part are positioned on one side of a grout outlet of the grouting sleeve, a positioning screw, a boss and a rubber column are sequentially inserted from the other end of the grouting sleeve, the part of the positioning screw with a compression check ring is sleeved into the middle cylinder part, the boss is clamped at the second end part, the rubber column is abutted against the second end part and positioned in the grouting sleeve, the grouting sleeve is integrally installed on a prefabricated part template end plate, a gasket and a locking nut are sleeved on the exposed threaded part of the positioning screw, and after locking, the end parts of the grouting sleeve and the rubber column are tightly attached to the prefabricated part template end plate;
Then, inserting a reinforcing steel bar into the middle column body part from the rubber plug and the first end part and abutting against the positioning screw, and after the reinforcing steel bar is pressed, enabling the end part of the rubber plug to be flush with the end part of the grouting sleeve; after the installation of the steel bars is finished, grouting is carried out on the outer part of the grouting sleeve to finish the pouring of the whole prefabricated part;
the disassembling step is as follows: after the whole prefabricated part is poured and solidified, loosening the locking nut, sequentially detaching the locking nut and the gasket from the lower part of the prefabricated part template end plate, pulling the outside of the grouting sleeve to the rear part of the prefabricated part template end plate by the positioning screw rod, and drawing the rubber column, the boss and the middle cylinder part together with the rubber plug out of the grouting sleeve under the action of the compression check ring by the positioning screw rod.
2. A combined multifunctional auxiliary for a combined use method of a grouting sleeve for reinforcing steel bar connection as claimed in claim 1, comprising a rubber stopper, an intermediate cylinder part and a rubber cylinder which are combined; a metal bushing is arranged in one end, close to the middle cylinder part, of the rubber plug, and a plurality of buckles are arranged on the exposed part of the metal bushing and are clamped and sleeved in the first end part of the middle cylinder part; a boss is arranged at one end, close to the middle cylinder part, of the rubber column and is connected into the second end part of the middle cylinder part through threads; the rubber column is provided with a positioning screw rod with a compression check ring in a sleeved mode, the positioning screw rod penetrates through the rubber column and the boss and extends into the middle cylinder portion, and the exposed portion of the positioning screw rod is detachably sleeved with a gasket and a locking nut.
3. The combined multifunctional auxiliary of the combined use method of the grouting sleeve for connecting the steel bars as claimed in claim 2, wherein the metal bushing is cylindrical and has a clamping part and an embedding part, the clamping part is sleeved on the first end part, and the embedding part is embedded in the rubber plug; the embedded part is circumferentially arrayed with a plurality of through holes, and the periphery of the tail end of the embedded part is provided with a plurality of outward-turned radial spokes; the clamping portion is circumferentially provided with a plurality of openings, the openings are provided with the buckles, and the first end portion is circumferentially provided with a plurality of clamping grooves matched and connected with the buckles.
4. The multi-functional auxiliary of a combination use method of a grouting sleeve for reinforcing bar connection according to claim 3, wherein the through holes are provided with a plurality of turns at equal intervals, and the radial spokes are arranged at the edge of the area between the adjacent through holes with central symmetry.
5. The multifunctional combined auxiliary of the grouting sleeve for connecting reinforcing steel bars according to claim 4, wherein the plurality of buckles are arranged in a central symmetry manner, and the buckles are arranged in an outward inclination manner.
6. The multifunctional auxiliary of claim 2 or 3, wherein the metal bushing is a connecting member made of stainless spring steel, and the middle cylindrical portion is made of hollow steel.
7. The multi-functional auxiliary of a combination use method of a grout sleeve for reinforcing bar connection of claim 2, wherein a step for engaging is provided on the circumference of the first end.
8. The combined multifunctional auxiliary of the combined use method of the grouting sleeve for reinforcing steel bar connection according to claim 2, wherein the rubber plug is provided with a diameter-variable outer diameter, the outer diameter of one end close to the metal bushing is smaller than the outer diameter of the other end and larger than the outer diameter of the middle cylinder part, and the inner diameter of the rubber plug is smaller than the inner diameter of the middle cylinder part.
9. A combined multifunctional auxiliary of a grouting sleeve for reinforcing bar connection as claimed in claim 2, wherein the inner diameter of the rubber column is smaller than the inner diameter of the middle cylinder part and the outer diameter is larger than the outer diameter of the middle cylinder part, the end of the rubber column abuts against the second end, and the boss is located in the second end; the inner diameters of the boss and the rubber column are smaller than the outer diameter of the compression retainer ring.
10. The combined multifunctional auxiliary of the combined use method of the grouting sleeve for reinforcing steel bar connection according to claim 2, wherein the rubber stopper, the intermediate cylinder part, the rubber column and the positioning screw are coaxially arranged; the positioning screw comprises a threaded part and a polished rod part, the pressing retainer ring is arranged on one side of the polished rod part close to the threaded part, and the outer diameter of the polished rod part is larger than that of the threaded part and is matched with the inner diameter of the rubber column.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110038182.1A CN114753564B (en) | 2021-01-12 | 2021-01-12 | Combined multifunctional auxiliary part of grouting sleeve for steel bar connection and combined use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110038182.1A CN114753564B (en) | 2021-01-12 | 2021-01-12 | Combined multifunctional auxiliary part of grouting sleeve for steel bar connection and combined use method |
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| Publication Number | Publication Date |
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| CN114753564A true CN114753564A (en) | 2022-07-15 |
| CN114753564B CN114753564B (en) | 2024-02-20 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207332121U (en) * | 2017-09-15 | 2018-05-08 | 中建机械洛阳有限公司 | A kind of PC components grout sleeve fixation kit |
| CN111945959A (en) * | 2020-07-24 | 2020-11-17 | 武汉源锦卓远机械有限公司 | Multifunctional auxiliary part for machining full grouting sleeve and assembling and disassembling method thereof |
| CN215167223U (en) * | 2021-01-12 | 2021-12-14 | 武汉源锦卓远机械有限公司 | Grouting sleeve's multi-functional auxiliary of combination formula for steel bar connection |
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2021
- 2021-01-12 CN CN202110038182.1A patent/CN114753564B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207332121U (en) * | 2017-09-15 | 2018-05-08 | 中建机械洛阳有限公司 | A kind of PC components grout sleeve fixation kit |
| CN111945959A (en) * | 2020-07-24 | 2020-11-17 | 武汉源锦卓远机械有限公司 | Multifunctional auxiliary part for machining full grouting sleeve and assembling and disassembling method thereof |
| CN215167223U (en) * | 2021-01-12 | 2021-12-14 | 武汉源锦卓远机械有限公司 | Grouting sleeve's multi-functional auxiliary of combination formula for steel bar connection |
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| CN114753564B (en) | 2024-02-20 |
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