CN113323280A - Concrete pile steel bar mechanical joint and connecting method thereof - Google Patents
Concrete pile steel bar mechanical joint and connecting method thereof Download PDFInfo
- Publication number
- CN113323280A CN113323280A CN202110657408.6A CN202110657408A CN113323280A CN 113323280 A CN113323280 A CN 113323280A CN 202110657408 A CN202110657408 A CN 202110657408A CN 113323280 A CN113323280 A CN 113323280A
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- Prior art keywords
- sleeve
- female
- annular elastic
- plug pin
- elastic body
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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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a concrete pile steel bar mechanical joint and a connecting method thereof, wherein the mechanical joint comprises: public cover, plug pin, female cover, annular elastomer, public cover is the cover tube-shape, and one end opening, the other end set up the through-hole, and public cover passes through the pier nose with the reinforcing bar and is connected, and threaded sleeve inner circle is provided with connecting thread. The plug pin is rod-shaped, the rear half part of the plug pin is provided with threads, the threads of the plug pin are screwed into the threaded holes of the male sleeve, the front part of the plug pin is a spherical extrusion head, the cross section of the spherical extrusion head is arc-shaped, and the rear part of the spherical extrusion head is provided with an annular clamping groove. The female sleeve is in a sleeve shape, the female sleeve can be sleeved on the inserting pin, and epoxy resin is filled in a gap between the inserting pin and the female sleeve; an annular elastic body is arranged in the female sleeve and matched with the clamping groove of the plug pin to lock the plug pin; one end of the female sleeve is provided with a through hole which is connected with the reinforcing steel bar through a pier head. The female sleeve and the male sleeve are quickly clamped through the inserting pins and the annular elastic bodies, and the connecting efficiency is improved.
Description
Technical Field
The invention belongs to the field of concrete pile connecting parts, and particularly relates to a concrete pile steel bar mechanical joint and a connecting method thereof.
Background
The precast reinforced concrete pile is commonly used in the foundation of the pile foundation of the building engineering, is an indispensable component material, and is widely applied to public facilities such as large buildings, stations, wharfs, bridges and the like. The force in one steel bar is transmitted to the other steel bar by the mechanical engagement action of the steel bar and the connecting piece or other intervening materials or the bearing action of the end face of the steel bar, namely the mechanical connection of the steel bars. Mechanical connection of steel bars is a widely used construction technique in the modern building industry. The mechanical connection joint of the steel bars is a complete set of connection parts for the mechanical connection of the steel bars, and generally comprises the steel bars, a connection sleeve or other connection parts, wherein the connection range comprises the connection sleeve, the connection parts and the parts, which are obviously deformed, of the steel bars outside the connection sleeve, the connection parts and the steel bars outside the connection parts, caused by the processing required by the connection, such as upsetting, extrusion, rolling, turning and the like.
In the technical field of construction engineering at present, a conventional mode of mechanical connection of reinforcing steel bars is adopted, for example, as disclosed in a reinforcing steel bar quick connector of Chinese invention patent CN210032349U, four or more pieces of fixed upper claw pieces are spliced or fixed lower claw pieces are spliced, so that the positions of all split bodies of a nut can be adjusted as required, and a building module can be quickly inserted. The invention patent CN212715665U of the present company application is an improved concrete pile steel bar connecting sleeve combined structure, a through hole and a taper pin are arranged on a sleeve with a hole, the taper pin is inserted into the through hole of the sleeve with a hole and a mounting hole of a connecting rod, one end of the connecting rod is provided with a thread and is inserted into the threaded sleeve, and the other end of the connecting rod is inserted into the sleeve with a hole and is positioned by the taper pin. The tensile strength is improved, and the manufacturing cost is reduced. In subsequent developments, the structural form of the taper pin is still further simplified to improve the mechanical connection efficiency of the steel bar.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the problems that the concrete pile steel bar connecting sleeve is too complex in structure and low in mechanical connection efficiency of the steel bars.
The invention adopts the following technical scheme: a concrete pile rebar mechanical joint, comprising:
the male sleeve is in a sleeve shape, one end of the male sleeve is opened, the other end of the male sleeve is provided with a through hole, the male sleeve is connected with the reinforcing steel bar through a pier head, the inner ring of the threaded sleeve is provided with threads,
the plug pin is rod-shaped, a connecting thread is tapped at the rear half part, a thread of the plug pin is screwed into a threaded hole of the male sleeve, a spherical extrusion head is arranged at the front part of the plug pin, the section of the spherical extrusion head is arc-shaped, an annular clamping groove is arranged at the rear part of the spherical extrusion head,
the female sleeve is in a sleeve shape and can be sleeved on the inserting pin, and epoxy resin is filled in a gap between the inserting pin and the female sleeve; one end of the female sleeve is provided with a through hole which is connected with the reinforcing steel bar through a pier head,
the annular elastic body is arranged in the female sleeve and matched with the clamping groove of the plug pin to lock the plug pin; the annular elastic body is coated with a plurality of trapezoidal iron blocks which are uniformly and annularly arranged.
Correspondingly, the method for connecting the concrete pile steel bar mechanical joint comprises the following steps:
respectively penetrating the reinforcing steel bars into the male sleeve and the female sleeve, and attaching the pier heads to the inner walls of the tail ends of the male sleeve and the female sleeve;
the connecting thread at the rear end of the plug pin is screwed into the threaded hole of the male sleeve, and a set plug distance is reserved;
coating a trapezoidal iron block in the annular elastic body, wherein the outer diameter of the trapezoidal iron block is smaller than the inner diameter of the female sleeve, and the inner diameter of the trapezoidal iron block is larger than the inner diameter of the female sleeve after the annular elastic body is coated;
the annular elastic body coated with the trapezoidal iron block is pressed into the mounting groove of the female sleeve, the coaxiality is adjusted,
the male sleeve and the inserting pin are inserted into the female sleeve, the spherical extrusion head is pressed into the annular elastic body, the annular elastic body deforms, the clamping groove is locked with the annular elastic body, the trapezoidal iron block prevents the inserting pin from being separated, and at the moment, the male sleeve and the female sleeve are in seamless abutting joint.
Further, the female sleeve is poured in the pile body.
Further, be provided with a plurality of annular elastomers in the female cover, evenly arrange along the axial, the grafting round pin lateral surface is provided with a plurality of joint grooves that correspond.
Further, the threads of the plug pin and the male sleeve are fine threads.
Further, the inner wall of the female sleeve is provided with a mounting groove, and the annular elastic body is embedded into the mounting groove after being extruded and deformed by a tool.
Further, the annular elastic body is a metal spring or a rubber spring.
The invention has the beneficial effects that:
the concrete pile reinforcing steel bar mechanical joint is simple in structure, high in tensile strength, low in cost and stable in connection, the female sleeve and the male sleeve are quickly clamped through the inserting pins and the annular elastic bodies, and connection efficiency is improved.
Drawings
FIG. 1 is a partially cut-away schematic view of a concrete pile reinforcing bar mechanical joint according to the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a schematic top view of an annular elastomer according to the present invention;
fig. 4 is a diagram illustrating a mechanical connection procedure of a concrete pile reinforcing bar mechanical joint according to the present invention.
In the figure: 1. a female sleeve; 2. a male sleeve; 201. mounting a groove; 3. reinforcing steel bars; 4. a plug pin; 401. connecting threads; 402. a spherical extrusion head; 403. a clamping groove; 5. an annular elastomer; 6. heading; 7. a trapezoidal iron block.
Detailed Description
The details of the present invention are described below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a concrete pile steel bar mechanical joint comprises a male sleeve 3, an insertion pin 4 and a female sleeve 1. Male sleeve 3 is the cover tube-shape, and one end opening, the other end set up the through-hole, and male sleeve 3 passes through pier nose 6 with reinforcing bar 3 to be connected, and threaded sleeve inner circle is provided with the screw thread. The plug pin 4 is rod-shaped, a connecting thread 401 is tapped at the rear half part, a thread of the plug pin 4 is screwed into a threaded hole of the male sleeve 3, a spherical extrusion head 402 is arranged at the front part of the plug pin 4, the section of the spherical extrusion head 402 is arc-shaped, and an annular clamping groove 403 is arranged at the rear part of the spherical extrusion head 402.
As shown in fig. 2, the female sleeve 1 is in a sleeve shape, the female sleeve 1 can be sleeved on the plug pin 4, and epoxy resin is filled in a gap between the plug pin 4 and the female sleeve 1; an annular elastic body 5 is arranged in the female sleeve 1, and the annular elastic body 5 is matched with a clamping groove 403 of the plug pin 4 to lock the plug pin 4.
As shown in fig. 3, the annular elastic body 5 is coated with a plurality of trapezoidal iron blocks 7 which are uniformly arranged in a circumferential direction. Female 1 one end of cover sets up the through-hole, is connected through pier nose 6 with reinforcing bar 3.
In one example, the female sleeve 1 is cast in a pile body.
In one example, a plurality of annular elastic bodies 5 are arranged in the female sleeve 1 and are uniformly distributed along the axial direction, and a plurality of corresponding clamping grooves 403 are formed in the outer side surface of the inserting pin 4.
In one example, the threads of the plug pin 4 and the pin sleeve 3 are fine threads.
In one example, the inner wall of the female sleeve 1 is provided with a mounting groove 201, and the annular elastic body 5 is pressed and deformed by a tool and then embedded into the mounting groove 201.
In one example, the plug pin 4 is made of 45H-grade alloy steel including chromium and nickel elements.
In one example, the annular elastic body 5 is a metal spring or a rubber spring.
As shown in fig. 4, a method for connecting a concrete pile steel bar mechanical joint is disclosed, which comprises the following steps:
s1, respectively penetrating a reinforcing steel bar 3 into a male sleeve 2 and a female sleeve 1, and attaching a pier head 6 to the inner walls of the tail ends of the male sleeve 2 and the female sleeve 1;
s2, screwing a connecting thread 401 at the rear end of the plug pin 4 into a threaded hole of the male sleeve 2, reserving a set plug distance, and filling epoxy resin between the plug pin 4 and the male sleeve 2;
s3, a trapezoidal iron block 7 is coated in the annular elastic body 5, the outer diameter of the trapezoidal iron block 7 is smaller than the inner diameter of the female sleeve 1, and the inner diameter of the trapezoidal iron block 7 is larger than the inner diameter of the female sleeve 1 after the annular elastic body 5 is coated;
s4, pressing the annular elastic body 5 coated with the trapezoidal iron block 7 into the mounting groove of the female sleeve 1, adjusting the coaxiality,
s5, the male sleeve 2 and the inserting pin 4 are inserted into the female sleeve 1, the spherical extrusion head is pressed into the annular elastic body 5, the annular elastic body 5 deforms, the clamping groove 403 is locked with the annular elastic body 5, the trapezoidal iron block 7 prevents the inserting pin 4 from being separated, and at the moment, the male sleeve 2 and the female sleeve 1 are in seamless abutting joint.
The working principle of the invention is as follows:
according to the concrete pile steel bar 3 mechanical joint, the male sleeve 3 and the female sleeve 1 are in seamless butting through the male sleeve 3 and the female sleeve 1 which are matched, the joint groove 403 of the inserting pin 4 is matched with the annular elastic body 5 in the female sleeve 1, the main detection tension and pressure of joint type detection specified by domestic relevant standards is adopted, when the joint bears repeated tension and pressure, the first steel bar 3 is transmitted to the pressure of the second steel bar 3, force is transmitted through the inserting pin 4 of the male sleeve 3 and the female sleeve 1, the annular elastic body 5 is extruded and deformed by the spherical extrusion head 402, the inserting pin 4 is clamped, and the connecting time of the male sleeve 3 and the female sleeve 1 is greatly shortened. And the male sleeve 3 is connected with the plug pin 4 through the thread, so that the installation is simple and convenient. The standard deformation performance requirement of the national I-grade joint is met, and meanwhile, the connecting working efficiency of the steel bar 3 on the construction site is improved.
In conclusion, the female sleeve and the male sleeve are quickly clamped through the inserting pins and the annular elastic bodies, and the connecting efficiency is improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. The front, back, left and right are not specific, but are used for more intuitively explaining the technical scheme without limitation. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical spirit and features of the present invention, and the present invention is not limited thereto but may be implemented by those skilled in the art.
Claims (8)
1. The utility model provides a concrete pile reinforcing bar mechanical joint which characterized in that: the method comprises the following steps:
the male sleeve (3) is sleeve-shaped, one end of the male sleeve (3) is open, the other end of the male sleeve is provided with a through hole, the male sleeve (3) is connected with the reinforcing steel bar (3) through a pier head (6), the inner ring of the threaded sleeve is provided with threads,
the plug pin (4), the plug pin (4) is rod-shaped, the rear half part is provided with a connecting thread (401), the thread of the plug pin (4) is screwed into the threaded hole of the male sleeve (3), the front part of the plug pin (4) is provided with a spherical extrusion head (402), the section of the spherical extrusion head (402) is arc-shaped, the rear part of the spherical extrusion head (402) is provided with an annular clamping groove (403),
the female sleeve (1) is sleeve-shaped, the female sleeve (1) can be sleeved on the inserting pin (4), and epoxy resin is filled in a gap between the inserting pin (4) and the female sleeve (1); one end of the female sleeve (1) is provided with a through hole which is connected with the steel bar (3) through a pier head (6),
the annular elastic body (5) is arranged in the female sleeve (1), and the annular elastic body (5) is matched with the clamping groove (403) of the plug pin (4) to lock the plug pin (4); the annular elastic body is coated with a plurality of trapezoidal iron blocks (7) which are uniformly and annularly arranged.
2. The concrete pile steel bar mechanical joint according to claim 1, wherein: the female sleeve (1) is poured in the pile body.
3. The concrete pile steel bar mechanical joint according to claim 1, wherein: a plurality of annular elastic bodies (5) are arranged in the female sleeve (1) and evenly distributed along the axial direction, and a plurality of corresponding clamping grooves (403) are formed in the outer side surface of the inserting pin (4).
4. A concrete pile reinforcing bar mechanical joint according to claim 1 or 3, wherein: the threads of the inserting pin (4) and the male sleeve (3) are fine threads.
5. A concrete pile reinforcing bar mechanical joint according to claim 1 or 3, wherein: the inner wall of the female sleeve (1) is provided with a mounting groove (201), and the annular elastic body (5) is embedded into the mounting groove (201) after being extruded and deformed by a tool.
6. The concrete pile steel bar mechanical joint according to claim 1, wherein: the plug pin (4) is made of 45H-grade alloy steel comprising chromium and nickel elements.
7. The concrete pile steel bar mechanical joint according to claim 1, wherein: the annular elastic body (5) is a metal spring or a rubber spring.
8. A method for connecting concrete pile steel bar mechanical joints is characterized in that: the method comprises the following steps:
s1, respectively penetrating a reinforcing steel bar (3) into a male sleeve (2) and a female sleeve (1), and attaching a pier head (6) to the inner walls of the tail ends of the male sleeve (2) and the female sleeve (1);
s2, a connecting thread (401) at the rear end of the plug pin (4) is screwed into a threaded hole of the male sleeve (2), and a set plug distance is reserved;
s3, a trapezoidal iron block (7) is coated in the annular elastic body (5), the outer diameter of the trapezoidal iron block (7) is smaller than the inner diameter of the female sleeve (1), and the inner diameter of the trapezoidal iron block is larger than that of the female sleeve (1) after the annular elastic body (5) is coated;
s4, pressing the annular elastic body (5) coated with the trapezoidal iron block (7) into the mounting groove of the female sleeve (1), adjusting the coaxiality,
s5, the male sleeve (2) and the inserting pin (4) are inserted into the female sleeve (1), the spherical extrusion head is pressed into the annular elastic body (5), the annular elastic body (5) deforms, the clamping groove (403) is locked with the annular elastic body (5), the trapezoidal iron block (7) prevents the inserting pin (4) from being separated, and at the moment, the male sleeve (2) and the female sleeve (1) are in seamless abutting joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110657408.6A CN113323280A (en) | 2021-06-11 | 2021-06-11 | Concrete pile steel bar mechanical joint and connecting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110657408.6A CN113323280A (en) | 2021-06-11 | 2021-06-11 | Concrete pile steel bar mechanical joint and connecting method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113323280A true CN113323280A (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110657408.6A Pending CN113323280A (en) | 2021-06-11 | 2021-06-11 | Concrete pile steel bar mechanical joint and connecting method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN113323280A (en) |
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2021
- 2021-06-11 CN CN202110657408.6A patent/CN113323280A/en active Pending
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