CN108756074B - Method for improving connection strength of building steel bar framework - Google Patents
Method for improving connection strength of building steel bar framework Download PDFInfo
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- CN108756074B CN108756074B CN201810633591.4A CN201810633591A CN108756074B CN 108756074 B CN108756074 B CN 108756074B CN 201810633591 A CN201810633591 A CN 201810633591A CN 108756074 B CN108756074 B CN 108756074B
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- spline connecting
- steel bar
- spline
- connecting sleeve
- arc
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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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- 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
- E04C5/18—Spacers of metal or substantially of metal
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention belongs to the technical field of engineering construction, and particularly relates to a method for improving the connection strength of a construction steel bar framework, wherein a steel bar connection sleeve in the method comprises a spline connection shaft and a spline connection sleeve, wherein the center of the spline connection shaft is provided with a threaded hole which is used for connecting one end of a steel bar; a group of circular arc-shaped teeth are arranged on the cylindrical surface at the large end of the spline connecting shaft; a threaded hole is formed in the center of the spline connecting sleeve and used for being connected with one end of another steel bar; the end face of the large end of the spline connecting sleeve is provided with a regular polygonal groove; a group of circular arc grooves are formed in the side wall of the regular polygonal groove; the spline connecting shaft is connected with one steel bar through the spline connecting shaft, the spline connecting sleeve is connected with the other steel bar, the large end of the spline connecting shaft is provided with the arc-shaped teeth, the side wall of the regular polygonal groove of the spline connecting sleeve is provided with the arc-shaped grooves, the spline connecting shaft and the spline connecting sleeve are fastened and locked, and the two steel bars are fastened and connected.
Description
Technical Field
The invention belongs to the technical field of engineering construction, and particularly relates to a method for improving the connection strength of a construction steel bar framework.
Background
In the prior art, concrete methods such as welding, binding and overlapping, mechanical connection and the like can be used for connecting the reinforcing steel bars. The connection of prefabricated reinforced concrete components is usually realized by firstly connecting the reinforcing steel bars and then connecting other parts on the premise. For example, in the connection of prefabricated parts, the reinforcing bars are connected first, and then the peripheral structures such as concrete are cast and connected. If adopt electric welding, need equipment such as electric welding, power cord, its process is complicated, the use is inconvenient, especially when high altitude construction, it is inconvenient to pull equipment such as power cord and electric welding, because the restriction of building site environmental condition, the power cord often can not reach the operation requirement, has caused inconvenience for the construction in building site, and work efficiency is low, wastes time and energy to there is the potential safety hazard. In practical engineering, in consideration of the reliability of the economical efficiency and the performance of the joint, the most used of the three reinforcing steel bar connection modes in the large-diameter reinforcing steel bar connection is the best mechanical connection. In the existing sleeve grouting technology abroad, the connection between the steel bars is realized by using a mode of simultaneously grouting the sleeve, and the constraint of relative slippage between the sleeve and the steel bars is ensured by filling materials; however, because of the limited shear capacity of the fill material, it is necessary to use long sleeves to meet basic performance requirements. It is desirable to obtain a composite sleeve type reinforcing bar connecting device having a better overall technical effect.
The prior art also discloses a technical scheme of a locking method of a steel bar connecting sleeve, for example, a Chinese patent with application number 201711303739.X discloses a device for quickly connecting steel bars, which comprises a fixed valve body and a movable valve body, and is characterized in that the fixed valve body is in threaded connection with an end cover with a round hole to fix the steel bars, a limit block is arranged in the fixed valve body to limit the outside of the steel bar end, a strip-shaped hole is arranged at the upper part and the lower part of one end of a near end cover of the fixed valve body, a first outer protrusion is arranged in the strip-shaped hole, a spring support is arranged between the upper and lower first outer protrusions, a telescopic rod is arranged in the spring, a connecting body is arranged in the movable valve body and is in threaded connection and fixed, the steel bars are extruded and fixed between the connecting body and the movable valve body, holes are arranged at the upper part and the lower part of the corresponding position of a pressing surface, one side near the steel bar is provided with an inner plug which is connected with the connecting body by screw thread. The steel bar locking method in the technical scheme can realize steel bar connection and has a novel principle; however, the locking method of the scheme has the disadvantages of complex structure, poor connection stability and complicated operation, and influences the connection efficiency of the steel bar structure.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a method for improving the connection strength of a construction steel bar framework, a steel bar connecting sleeve used in the method is connected with a steel bar through a spline connecting shaft, the spline connecting sleeve is connected with another steel bar, the large end of the spline connecting shaft is provided with an arc-shaped tooth, and the side wall of a regular polygonal groove of the spline connecting sleeve is provided with an arc-shaped groove, so that the spline connecting shaft and the spline connecting sleeve are fastened and locked, and further the two steel bars are fastened and connected, if necessary, the spline connecting shaft and the spline connecting sleeve can be preassembled in advance, the spline connecting shaft and the spline connecting sleeve are connected when the steel bar framework is in a construction site, and the.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a method for improving the connection strength of a construction steel bar framework, which comprises the following steps:
the method comprises the following steps: digging a foundation pit, pouring a foundation and reserving a steel bar connecting end;
step two: connecting the reserved steel bar connecting end in the step one with a steel bar framework of the main building through a steel bar connecting sleeve;
step three: paving a template around the steel reinforcement framework connected in the step two;
step four: pouring concrete into the cavity of the template in the third step;
step five: after the concrete in the fourth step is solidified, removing the building surface template;
the steel bar connecting sleeve in the second step comprises a spline connecting shaft and a spline connecting sleeve, wherein a threaded hole is formed in the center of the spline connecting shaft and is used for connecting one end of a steel bar; the spline connecting shaft is a step shaft, and a group of circular arc-shaped teeth are arranged on the cylindrical surface of the large end of the step shaft; a threaded hole is formed in the center of the spline connecting sleeve and used for being connected with one end of another steel bar; the spline connecting sleeve is a step shaft, and a regular polygonal groove is formed in the end face of the large end of the step shaft;
as a first preferable scheme of the spline connecting sleeve in the invention, a group of circular arc grooves is arranged on the side wall of the regular polygonal groove; when the spline connecting sleeve is used, the spline connecting shaft is connected with one end of one steel bar through the central threaded hole, the spline connecting sleeve is connected with one end of the other steel bar through the central threaded hole, the spline connecting shaft is inserted into the spline connecting sleeve, the spline connecting shaft is fixed, the spline connecting sleeve is rotated forcibly, the circular arc-shaped teeth slide along the side wall of the regular polygonal groove, the circular arc-shaped teeth finally extrude the side wall of the regular polygonal groove, when the circular arc-shaped teeth extrude the nearest circular arc-shaped groove on the side wall of the regular polygonal groove, the circular arc-shaped teeth and the side wall of the regular polygonal groove do not slide relatively, meanwhile, the spline connecting shaft is fastened and locked with the spline.
As a second preferable scheme of the spline connecting sleeve in the invention, an arc-shaped rack is arranged on the side wall of the regular polygonal groove of the spline connecting sleeve; the arc-shaped rack is meshed with the first arc-shaped tooth on the extrusion column; one side of the extrusion column is provided with a first cylindrical surface, and the other side of the extrusion column is provided with a first arc-shaped tooth; the first cylindrical surface is contacted with the arc-shaped teeth of the spline connecting shaft; when the spline connecting shaft is used, after the spline connecting shaft is inserted into the spline connecting sleeve, the extrusion column is inserted between two adjacent arc-shaped teeth of the spline connecting shaft, the spline connecting shaft is fixed, the spline connecting sleeve is rotated forcibly, the arc-shaped rack slides relative to the arc-shaped teeth on the extrusion column, and when the arc-shaped rack is completely meshed with the arc-shaped teeth on the extrusion column and does not slide relative to the arc-shaped teeth, the spline connecting shaft and the spline connecting sleeve are fastened and locked.
As a third preferable scheme of the spline connecting sleeve in the invention, a cylindrical groove is arranged on the end surface of the large end of the spline connecting sleeve; a group of rectangular grooves are arranged on the inner wall of the cylindrical groove; the bottom of the rectangular groove is connected with one end of a group of springs; the other end of the spring is contacted with the cylindrical surface of the round rod; the notch of the cylindrical groove is provided with a blocking support; the blocking support is arc-shaped, can slide in a sliding groove of the spline connecting sleeve, and is provided with a rotating handle at one end; an inclined plane is arranged on the cylindrical surface of the cylindrical groove of the spline connecting sleeve; the inclined plane is arranged between two adjacent rectangular grooves, and a group of circular arc-shaped grooves are formed in the inclined plane; during the use, insert the spline connecting axle behind the spline adapter sleeve, pull the twist grip who blocks the support, block to support the rotation, the rectangle notch of spline adapter sleeve is opened, the pole is popped out the rectangular channel by the elasticity of spring, the pole gets into between the adjacent two convex teeth of spline connecting axle, fixed spline connecting axle rotates the spline adapter sleeve hard, convex tooth slides along the slope plane on the cylindrical groove, when convex tooth extrusion slope plane goes up nearest circular arc groove, convex tooth and slope plane do not take place relative slip, realize simultaneously that spline connecting axle and spline adapter sleeve fasten and lock.
As a preferred scheme of the invention, a threaded hole is formed in the end face of the small end of the spline connecting shaft, and a locking nut is connected in the threaded hole through threads; the end face of the small end of the spline connecting sleeve is provided with a threaded hole, and a locking nut is connected in the threaded hole through threads; the locking nuts are symmetrically arranged, stepped holes are formed in the centers of the locking nuts, and reverse pawls are arranged in the stepped holes; one end of the reverse pawl is rotatably connected in the step hole through a rotating shaft, and the middle part of the reverse pawl is connected with the inner wall of the step hole through a spring; when the steel bar loosening device is used, after a steel bar is screwed into a threaded hole of the spline connecting shaft, the locking nut is rotated, the locking nut drives the reverse pawl to move, the other end of the reverse pawl abuts against a thread at the end of the steel bar, and loosening between the steel bar and the spline connecting shaft is achieved.
As a preferred scheme of the invention, a rectangular column is arranged at the bottom of the stepped hole of the locking nut; a first cylindrical hole is formed in the middle of the rectangular column; a second cylindrical hole is formed in the cylindrical surface of the locking nut; one end of the second cylindrical hole is communicated with the first cylindrical hole, and the other end of the second cylindrical hole is connected with an oil injection nozzle through threads; one side of the rectangular column, which is close to the reverse pawl, is provided with a V-shaped groove; one side, close to the rectangular column, of the reverse pawl is attached to the surface of the rectangular column, and an elastic V-shaped bulge is arranged on the surface, attached to one side of the rectangular column, of the reverse pawl; during the use, after the reinforcing bar precession spline connection axle's threaded hole, reverse pawl is by the screw thread jack-up of reinforcing bar, and reverse pawl drives the protruding swing of elasticity V-arrangement, and the V-arrangement groove is left in elasticity V-arrangement arch, and the lubricating oil in cylinder hole one number and the cylinder hole two lubricates the reinforcing bar screw thread, has made things convenient for in the reinforcing bar screw in spline connection axle, and lubricating oil carries out rust-resistant treatment to spline connection cover inside simultaneously.
The invention has the following beneficial effects:
1. the invention relates to a method for improving the connection strength of a construction steel bar framework, wherein a steel bar connecting sleeve used in the method is connected with one steel bar through a spline connecting shaft, the spline connecting sleeve is connected with the other steel bar, circular arc teeth are arranged at the large end of the spline connecting shaft, and circular arc grooves are arranged on the side wall of a regular polygon groove of the spline connecting sleeve, so that the spline connecting shaft and the spline connecting sleeve are fastened and locked, and further, the two steel bars are fastened and connected; if need, spline connection axle and spline adapter sleeve can be installed in advance, connect spline connection axle and spline adapter sleeve between realizing the building site, have further improved steel bar connection efficiency.
2. The invention relates to a method for improving the connection strength of a construction steel bar framework, wherein a steel bar connecting sleeve used in the method is provided with a group of rectangular grooves on the inner wall of a cylindrical groove of a spline connecting sleeve, the bottom of each rectangular groove is connected with one end of a group of springs, the other end of each spring is in contact with the cylindrical surface of a round bar, and blocking supports are arranged at the notches of the cylindrical grooves, so that a spline connecting shaft is quickly inserted into the spline connecting sleeve; set up the slope plane between two adjacent rectangular channels, set up a set of convex recess on the slope plane, realize rotatory to block and support the back, the pole gets into between two adjacent convex teeth of spline connecting axle, and then through rotatory spline connecting sleeve, realizes spline connecting axle and spline connecting sleeve fastening and locking.
3. According to the method for improving the connection strength of the steel bar framework of the building, the locking nut is arranged at the small end of the spline connecting shaft and the small end of the spline connecting sleeve, the reverse pawl is arranged in the step hole of the locking nut, the locking nut is rotated to drive the reverse pawl to move, the other end of the reverse pawl abuts against the thread at the end of the steel bar, and accordingly loosening between the steel bar and the spline connecting shaft is achieved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a front view of the sleeve for connecting reinforcing bars according to the present invention;
FIG. 3 is a sectional view taken along line A-A in FIG. 2 and a first structural schematic diagram of the spline connecting sleeve;
FIG. 4 is a sectional view taken along line A-A of FIG. 2 and a second structural schematic diagram of the spline connecting sleeve;
FIG. 5 is a sectional view taken along line A-A of FIG. 2 and a third structural schematic diagram of the spline connecting sleeve;
FIG. 6 is an enlarged view at B in FIG. 2;
in the figure: the device comprises a spline connecting shaft 1, circular arc-shaped teeth 11, a spline connecting sleeve 2, a regular polygonal groove 3, an arc-shaped rack 4, an extrusion column 41, a first cylindrical surface 411, a first arc-shaped tooth 412, a cylindrical groove 5, a rectangular groove 51, a round rod 52, a blocking support 53, a sliding groove 54, a locking nut 6, a stepped hole 61, a reverse pawl 62, a rotating shaft 63, a rectangular column 64, a first cylindrical hole 641, a second cylindrical hole 642, a V-shaped groove 643 and an elastic V-shaped protrusion 65.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the method for improving the connection strength of the steel reinforcement cage for construction according to the present invention comprises the following steps:
the method comprises the following steps: digging a foundation pit, pouring a foundation and reserving a steel bar connecting end;
step two: connecting the reserved steel bar connecting end in the step one with a steel bar framework of the main building through a steel bar connecting sleeve;
step three: paving a template around the steel reinforcement framework connected in the step two;
step four: pouring concrete into the cavity of the template in the third step;
step five: after the concrete in the fourth step is solidified, removing the building surface template;
the steel bar connecting sleeve in the second step comprises a spline connecting shaft 1 and a spline connecting sleeve 2, wherein a threaded hole is formed in the center of the spline connecting shaft 1 and is used for connecting one end of a steel bar; the spline connecting shaft 1 is a step shaft, and a group of circular arc teeth 11 are arranged on the cylindrical surface of the large end of the step shaft; a threaded hole is formed in the center of the spline connecting sleeve 2 and is used for connecting one end of another steel bar; the spline connecting sleeve 2 is a step shaft, and the end face of the large end of the step shaft is provided with a regular polygonal groove 3;
as a first embodiment of the spline connecting sleeve 2 in the invention, a group of circular arc grooves are arranged on the side wall of the regular polygonal groove 3; when the spline connecting shaft is used, the spline connecting shaft 1 is connected with one end of one steel bar through a central threaded hole, the spline connecting sleeve 2 is connected with one end of the other steel bar through the central threaded hole, the spline connecting shaft 1 is inserted into the spline connecting sleeve 2, the spline connecting shaft 1 is fixed, the spline connecting sleeve 2 is rotated forcibly, the arc-shaped teeth 11 slide along the side wall of the regular polygonal groove 3, the arc-shaped teeth 11 finally extrude the side wall of the regular polygonal groove 3, when the arc-shaped teeth 11 extrude the nearest arc-shaped groove on the side wall of the regular polygonal groove 3, the arc-shaped teeth 11 and the side wall of the regular polygonal groove 3 do not slide relatively, meanwhile, the spline connecting shaft 1 and the spline connecting sleeve 2 are fastened and locked, and further.
As a second embodiment of the spline connecting sleeve 2 in the invention, an arc-shaped rack 4 is arranged on the side wall of the regular polygonal groove 3 of the spline connecting sleeve 2; the arc-shaped rack 4 is meshed with the first arc-shaped tooth 412 on the extrusion column 41; a first cylindrical surface 411 is arranged on one side of the extrusion column 41, and a first arc-shaped tooth 412 is arranged on the other side of the extrusion column 41; the first cylindrical surface 411 is in contact with the circular arc-shaped teeth 11 of the spline connecting shaft 1; during the use, after inserting spline connecting axle 1 to spline adapter sleeve 2, insert extrusion post 41 between two adjacent convex teeth 11 of spline connecting axle 1, fixed spline connecting axle 1 rotates spline adapter sleeve 2 hard, and arc rack 4 slides with the arc tooth on extrusion post 41 relatively, when arc rack 4 and the No. one arc tooth 412 complete meshing on the extrusion post 41 no longer slide relatively, realizes spline connecting axle 1 and spline adapter sleeve 2 fastening and locking.
As a third embodiment of the spline connecting sleeve 2 in the invention, a cylindrical groove 5 is arranged on the end surface of the big end of the spline connecting sleeve 2; a group of rectangular grooves 51 are arranged on the inner wall of the cylindrical groove 5; the bottom of the rectangular groove 51 is connected with one end of a group of springs; the other end of the spring is in contact with the cylindrical surface of the round rod 52; the notch of the cylindrical groove 5 is provided with a blocking support 53; the blocking support 53 is arc-shaped, the blocking support 53 can slide in the sliding groove 54 of the spline connecting sleeve 2, and one end of the blocking support 53 is provided with a rotating handle; an inclined plane is arranged on the cylindrical surface of the cylindrical groove 5 of the spline connecting sleeve 2; the inclined plane is arranged between two adjacent rectangular grooves 51, and a group of circular arc grooves are formed in the inclined plane; when the spline connecting shaft is used, after the spline connecting shaft 1 is inserted into the spline connecting sleeve 2, the rotating handle of the blocking support 53 is pulled, the blocking support 53 rotates, the opening of the rectangular groove 51 of the spline connecting sleeve 2 is opened, the round bar 52 is popped out of the rectangular groove 51 by the elastic force of the spring, the round bar 52 enters between two adjacent circular arc-shaped teeth 11 of the spline connecting shaft 1, the spline connecting shaft 1 is fixed, the spline connecting sleeve 2 is rotated forcibly, the circular arc-shaped teeth 11 slide along the inclined plane on the cylindrical groove 5, when the circular arc-shaped teeth 11 extrude the nearest circular arc-shaped groove on the inclined plane, the circular arc-shaped teeth 11 do not slide relative to the inclined plane, and meanwhile, the spline connecting shaft 1.
As an embodiment of the invention, a threaded hole is arranged on the end face of the small end of the spline connecting shaft 1, and a locking nut 6 is connected in the threaded hole through threads; the end face of the small end of the spline connecting sleeve 2 is provided with a threaded hole, and a locking nut 6 is connected in the threaded hole through threads; the locking nuts 6 are symmetrically arranged, a step hole 61 is formed in the center of each locking nut 6, and a reverse pawl 62 is arranged in each step hole 61; one end of the reverse pawl 62 is rotatably connected in the stepped hole 61 through a rotating shaft 63, and the middle part of the reverse pawl 62 is connected with the inner wall of the stepped hole 61 through a spring; during the use, after the reinforcing bar screwed in the screwed hole of spline connecting axle 1, rotatory lock nut 6, lock nut 6 drives reverse pawl 62 and removes, and reverse pawl 62 other end supports the screw thread of reinforcing bar end, realizes loosening between reinforcing bar and the spline connecting axle 1.
As an embodiment of the present invention, a rectangular column 64 is disposed at the bottom of the stepped hole 61 of the lock nut 6; a first cylindrical hole 641 is formed in the middle of the rectangular column 64; a second cylindrical hole 642 is formed in the cylindrical surface of the locking nut 6; one end of the second cylindrical hole 642 is communicated with the first cylindrical hole 641, and the other end of the second cylindrical hole 642 is connected with an oil nozzle through threads; the rectangular column 64 is provided with a V-shaped groove 643 near one side of the reverse pawl 62; one side of the reverse pawl 62 close to the rectangular column 64 is attached to the surface of the rectangular column 64, and the surface of the reverse pawl 62 attached to one side of the rectangular column 64 is provided with an elastic V-shaped bulge 65; during the use, after the reinforcing bar screwed in the screwed hole of spline connecting axle 1, reverse pawl 62 was by the screw thread jack-up of reinforcing bar, and reverse pawl 62 drives the protruding 65 swing of elasticity V-arrangement, and the protruding 65V-arrangement of elasticity leaves V-arrangement groove 643, and the lubricating oil in cylinder hole 641 and No. two cylinder holes 642 lubricates the reinforcing bar screw thread, has made things convenient for in the reinforcing bar screw in spline connecting axle 1, and lubricating oil carries out rust-resistant treatment to inside of spline connecting sleeve 2 simultaneously.
When the spline connecting sleeve is used, the spline connecting shaft 1 is connected with one end of one steel bar through a central threaded hole, the spline connecting sleeve 2 is connected with one end of the other steel bar through the central threaded hole, and then the spline connecting shaft 1 is inserted into the spline connecting sleeve 2; first embodiment of the spline connection sleeve 2: fixing the spline connecting shaft 1, forcibly rotating the spline connecting sleeve 2, enabling the arc-shaped teeth 11 to slide along the side wall of the regular polygonal groove 3, finally extruding the side wall of the regular polygonal groove 3 by the arc-shaped teeth 11, and when the arc-shaped teeth 11 extrude the nearest arc-shaped groove on the side wall of the regular polygonal groove 3, enabling the arc-shaped teeth 11 and the side wall of the regular polygonal groove 3 not to slide relatively, meanwhile, realizing the fastening and locking of the spline connecting shaft 1 and the spline connecting sleeve 2, and further realizing the fastening and connection of two reinforcing steel bars; second embodiment of the spline connection sleeve 2: after the spline connecting shaft 1 is inserted into the spline connecting sleeve 2, the extrusion column 41 is inserted between two adjacent arc-shaped teeth 11 of the spline connecting shaft 1, the spline connecting shaft 1 is fixed, the spline connecting sleeve 2 is rotated forcibly, the arc-shaped rack 4 slides relative to the arc-shaped teeth on the extrusion column 41, and when the arc-shaped rack 4 is completely meshed with the arc-shaped teeth on the extrusion column 41 and does not slide relative to the arc-shaped teeth, the spline connecting shaft 1 and the spline connecting sleeve 2 are fastened and locked; third embodiment of the spline connection sleeve 2: after the spline connecting shaft 1 is inserted into the spline connecting sleeve 2, a rotating handle of a blocking support 53 is pulled, the blocking support 53 rotates, a rectangular groove 51 opening of the spline connecting sleeve 2 is opened, a round bar 52 is popped out of the rectangular groove 51 by the elasticity of a spring, the round bar 52 enters between two adjacent circular arc teeth 11 of the spline connecting shaft 1, the spline connecting shaft 1 is fixed, the spline connecting sleeve 2 is rotated forcibly, the circular arc teeth 11 slide along an inclined plane on a cylindrical groove 5, when the circular arc teeth 11 extrude the nearest circular arc groove on the inclined plane, the circular arc teeth 11 do not slide relative to the inclined plane, and the spline connecting shaft 1 and the spline connecting sleeve 2 are fastened and locked; after the steel bar is screwed into the threaded hole of the spline connecting shaft 1, the reverse pawl 62 is jacked up by the thread of the steel bar, the reverse pawl 62 drives the elastic V-shaped protrusion 65 to swing, the elastic V-shaped protrusion 65 leaves the V-shaped groove 643, lubricating oil in the first cylindrical hole 641 and the second cylindrical hole 642 lubricates the thread of the steel bar, the steel bar is conveniently screwed into the spline connecting shaft 1, and meanwhile, the lubricating oil performs rust prevention treatment on the inside of the spline connecting sleeve 2; after the reinforcing bar is screwed into the threaded hole of the spline connecting shaft 1, the locking nut 6 is rotated, the locking nut 6 drives the reverse pawl 62 to move, and the other end of the reverse pawl 62 abuts against the thread at the end of the reinforcing bar, so that the reinforcing bar and the spline connecting shaft 1 are loosened.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A method for improving the connection strength of a construction steel bar framework is characterized in that: the method comprises the following steps:
the method comprises the following steps: digging a foundation pit, pouring a foundation and reserving a steel bar connecting end;
step two: connecting the reserved steel bar connecting end in the step one with a steel bar framework of the main building through a steel bar connecting sleeve;
step three: paving a template around the steel reinforcement framework connected in the step two;
step four: pouring concrete into the cavity of the template in the third step;
step five: after the concrete in the fourth step is solidified, removing the building surface template;
the steel bar connecting sleeve in the second step comprises a spline connecting shaft (1) and a spline connecting sleeve (2), wherein a threaded hole is formed in the center of the spline connecting shaft (1), and the threaded hole is used for connecting one end of a steel bar; the spline connecting shaft (1) is a step shaft, and a group of circular arc teeth (11) are arranged on the cylindrical surface of the large end of the step shaft; a threaded hole is formed in the center of the spline connecting sleeve (2), and the threaded hole is used for being connected with one end of another steel bar; the spline connecting sleeve (2) is a step shaft, and the end face of the large end of the step shaft is provided with a regular polygonal groove (3); a group of circular arc grooves are formed in the side wall of the regular polygonal groove (3);
a cylindrical groove (5) is arranged on the end face of the large end of the spline connecting sleeve (2); a group of rectangular grooves (51) are arranged on the inner wall of the cylindrical groove (5); the bottom of the rectangular groove (51) is connected with one end of a group of springs; the other end of the spring is contacted with the cylindrical surface of the round rod (52); a blocking support (53) is arranged at the notch of the cylindrical groove (5); the blocking support (53) is arc-shaped, the blocking support (53) can slide in a sliding groove (54) of the spline connecting sleeve (2), and one end of the blocking support (53) is provided with a rotating handle; an inclined plane is arranged on the cylindrical surface of the cylindrical groove (5) of the spline connecting sleeve (2); the inclined plane is arranged between two adjacent rectangular grooves (51), and a group of circular arc grooves are formed in the inclined plane;
the side wall of the regular polygonal groove (3) of the spline connecting sleeve (2) is provided with an arc-shaped rack (4); the arc-shaped rack (4) is meshed with a first arc-shaped tooth (412) on the extrusion column (41); a first cylindrical surface (411) is arranged on one side of the extrusion column (41), and a first arc-shaped tooth (412) is arranged on the other side of the extrusion column (41); the first cylindrical surface (411) is in contact with the arc-shaped teeth (11) of the spline connecting shaft (1);
the end face of the small end of the spline connecting shaft (1) is provided with a threaded hole, and a locking nut (6) is connected in the threaded hole through threads; the end face of the small end of the spline connecting sleeve (2) is provided with a threaded hole, and a locking nut (6) is connected in the threaded hole through threads; the locking nuts (6) are symmetrically arranged, a step hole (61) is formed in the center of each locking nut (6), and a reverse pawl (62) is arranged in each step hole (61); one end of the reverse pawl (62) is rotatably connected in the stepped hole (61) through a rotating shaft (63), and the middle part of the reverse pawl (62) is connected with the inner wall of the stepped hole (61) through a spring.
2. The method for improving the connection strength of the construction steel bar framework according to the claim 1, which is characterized in that: a rectangular column (64) is arranged at the bottom of the stepped hole (61) of the locking nut (6); a first cylindrical hole (641) is formed in the middle of the rectangular column (64); a second cylindrical hole (642) is formed in the cylindrical surface of the locking nut (6); one end of the second cylindrical hole (642) is communicated with the first cylindrical hole (641), and the other end of the second cylindrical hole (642) is connected with an oil nozzle through threads; a V-shaped groove (643) is formed in one side, close to the reverse pawl (62), of the rectangular column (64); one side of the reverse pawl (62) close to the rectangular column (64) is attached to the surface of the rectangular column (64), and an elastic V-shaped protrusion (65) is arranged on the surface of one side of the reverse pawl (62) attached to the rectangular column (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633591.4A CN108756074B (en) | 2018-06-20 | 2018-06-20 | Method for improving connection strength of building steel bar framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633591.4A CN108756074B (en) | 2018-06-20 | 2018-06-20 | Method for improving connection strength of building steel bar framework |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108756074A CN108756074A (en) | 2018-11-06 |
| CN108756074B true CN108756074B (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810633591.4A Active CN108756074B (en) | 2018-06-20 | 2018-06-20 | Method for improving connection strength of building steel bar framework |
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| CN (1) | CN108756074B (en) |
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| DE2236503B2 (en) * | 1972-07-25 | 1974-10-24 | Dyckerhoff & Widmann Ag, 8000 Muenchen | Press socket connection for ribbed reinforcing bars |
| CN102733653A (en) * | 2012-06-07 | 2012-10-17 | 埃克森塞弗(苏州)电梯部件科技有限公司 | Single face connection-type locking mechanism |
| CN202611109U (en) * | 2012-04-28 | 2012-12-19 | 江苏天舜金属材料集团有限公司 | Steel strand connector |
| CN202969731U (en) * | 2012-12-27 | 2013-06-05 | 齐齐哈尔工程学院 | Specially-shaped sleeve for connection of steel bar |
| CN105464291A (en) * | 2015-12-29 | 2016-04-06 | 河北易达钢筋连接技术有限公司 | Bursting reinforcement bar connecting sleeve |
| CN107313557A (en) * | 2017-07-24 | 2017-11-03 | 长沙远大住宅工业集团股份有限公司 | Universal steel concrete supporting component |
| CN107558483A (en) * | 2017-07-13 | 2018-01-09 | 浙江永联建设工程股份有限公司 | A kind of building foundation and its construction method for installing wallboard |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2236503B2 (en) * | 1972-07-25 | 1974-10-24 | Dyckerhoff & Widmann Ag, 8000 Muenchen | Press socket connection for ribbed reinforcing bars |
| CN202611109U (en) * | 2012-04-28 | 2012-12-19 | 江苏天舜金属材料集团有限公司 | Steel strand connector |
| CN102733653A (en) * | 2012-06-07 | 2012-10-17 | 埃克森塞弗(苏州)电梯部件科技有限公司 | Single face connection-type locking mechanism |
| CN202969731U (en) * | 2012-12-27 | 2013-06-05 | 齐齐哈尔工程学院 | Specially-shaped sleeve for connection of steel bar |
| CN105464291A (en) * | 2015-12-29 | 2016-04-06 | 河北易达钢筋连接技术有限公司 | Bursting reinforcement bar connecting sleeve |
| CN107558483A (en) * | 2017-07-13 | 2018-01-09 | 浙江永联建设工程股份有限公司 | A kind of building foundation and its construction method for installing wallboard |
| CN107313557A (en) * | 2017-07-24 | 2017-11-03 | 长沙远大住宅工业集团股份有限公司 | Universal steel concrete supporting component |
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| CN108756074A (en) | 2018-11-06 |
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Denomination of invention: A method for improving the connection strength of building reinforcement skeleton Effective date of registration: 20210715 Granted publication date: 20201225 Pledgee: Hangzhou United Rural Commercial Bank Co.,Ltd. Haining sub branch Pledgor: Zhejiang Zhonglu Metal Co.,Ltd. Registration number: Y2021330000841 |
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