CN113323280A - Concrete pile steel bar mechanical joint and connecting method thereof - Google Patents

Concrete pile steel bar mechanical joint and connecting method thereof Download PDF

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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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sleeve
pin
plug
elastic body
annular elastic
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邵宏胜
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Jiangsu Xingao New Building Materials Co ltd
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Jiangsu Xingao New Building Materials Co ltd
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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

本发明涉及一种混凝土桩钢筋机械接头及其连接方法，机械接头包括：公套、插接销、母套、环形弹性体，所述公套为套筒状，一端开口，另一端设置通孔，公套与钢筋通过墩头连接，螺纹套筒内圈设置有连接螺纹。所述插接销为杆状，后半部分攻有螺牙，插接销的螺牙旋入公套的螺纹孔，插接销前部为球型挤压头，球型挤压头截面为弧形，所述球型挤压头后部设置有环形的卡接槽。所述母套为套筒状，母套可套接在插接销上，插接销与母套之间的间隙填充环氧树脂；母套内安装有环形弹性体，所述环形弹性体与插接销的卡接槽配合，锁住插接销；母套一端设置通孔，与钢筋通过墩头连接。本发明的母套、公套通过插接销、环形弹性体，卡接迅速，提高连接效率。

Figure 202110657408

The invention relates to a concrete pile reinforcing steel mechanical joint and a connection method thereof. The mechanical joint comprises a male sleeve, a plug pin, a female sleeve and an annular elastic body. The male sleeve is in the shape of a sleeve, one end is open, and the other end is provided with a through hole , The male sleeve is connected with the steel bar through the pier head, and the inner ring of the threaded sleeve is provided with a connecting thread. The plug-in pin is rod-shaped, and the rear part is tapped with screw teeth. The screw teeth of the plug-in pin are screwed into the threaded holes of the male sleeve. The front part of the plug-in pin is a spherical extrusion head, and the cross-section of the spherical extrusion head is Arc-shaped, an annular snap groove is arranged at the rear of the spherical extrusion head. The female sleeve is in the shape of a sleeve, the female sleeve can be sleeved on the plug-in pin, and the gap between the plug-in pin and the female sleeve is filled with epoxy resin; an annular elastic body is installed in the female sleeve, and the annular elastic body and the The snap-in groove of the plug-in pin is matched to lock the plug-in pin; one end of the female sleeve is provided with a through hole, which is connected with the steel bar through the pier head. The female sleeve and the male sleeve of the present invention are snap-connected quickly through the plug-in pins and the annular elastic body, and the connection efficiency is improved.

Figure 202110657408

Description

Concrete pile steel bar mechanical joint and connecting method thereof
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)

1.一种混凝土桩钢筋机械接头，其特征在于：包括：1. a concrete pile reinforcement mechanical joint is characterized in that: comprise: 公套(3)，所述公套(3)为套筒状，一端开口，另一端设置通孔，公套(3)与钢筋(3)通过墩头(6)连接，螺纹套筒内圈设置有螺纹，A male sleeve (3), the male sleeve (3) is in the shape of a sleeve, one end is open, and the other end is provided with a through hole, the male sleeve (3) and the steel bar (3) are connected through the pier head (6), and the inner ring of the threaded sleeve set with threads, 插接销(4)，所述插接销(4)为杆状，后半部分攻有连接螺纹(401)，插接销(4)的螺牙旋入公套(3)的螺纹孔，插接销(4)前部为球型挤压头(402)，球型挤压头(402)截面为弧形，所述球型挤压头(402)后部设置有环形的卡接槽(403)，A plug-in pin (4), the plug-in pin (4) is rod-shaped, the rear half is tapped with a connecting thread (401), and the thread of the plug-in pin (4) is screwed into the threaded hole of the male sleeve (3), The front part of the plug pin (4) is a spherical extruding head (402), the cross section of the spherical extruding head (402) is arc-shaped, and the rear part of the spherical extruding head (402) is provided with an annular clamping groove (403), 母套(1)，所述母套(1)为套筒状，母套(1)可套接在插接销(4)上，插接销(4)与母套(1)之间的间隙填充环氧树脂；母套(1)一端设置通孔，与钢筋(3)通过墩头(6)连接，The female sleeve (1), the female sleeve (1) is sleeve-shaped, the female sleeve (1) can be sleeved on the plug-in pin (4), and the space between the plug-in pin (4) and the female sleeve (1) is The gap is filled with epoxy resin; one end of the female sleeve (1) is provided with a through hole, which is connected with the steel bar (3) through the pier head (6), 环形弹性体(5)，安装于母套(1)内，所述环形弹性体(5)与插接销(4)的卡接槽(403)配合，锁住插接销(4)；所述环形弹性体包覆有多个均匀环向排布的梯形铁块(7)。The annular elastic body (5) is installed in the female sleeve (1), and the annular elastic body (5) cooperates with the clamping groove (403) of the plug-in pin (4) to lock the plug-in pin (4); The annular elastic body is covered with a plurality of trapezoidal iron blocks (7) uniformly arranged in the circumferential direction. 2.根据权利要求1所述的一种混凝土桩钢筋机械接头，其特征在于：所述母套(1)浇筑在桩体内。2 . The mechanical joint of concrete pile reinforcement according to claim 1 , wherein the female sleeve ( 1 ) is cast in the pile body. 3 . 3.根据权利要求1所述的一种混凝土桩钢筋机械接头，其特征在于：所述母套(1)内设置有多个环形弹性体(5)，沿轴向均匀排布，所述插接销(4)外侧面设置有对应的多个卡接槽(403)。3 . The mechanical joint of concrete pile reinforcement according to claim 1 , wherein a plurality of annular elastic bodies ( 5 ) are arranged in the female sleeve ( 1 ), which are evenly arranged in the axial direction, and the insertion A plurality of corresponding clamping grooves (403) are provided on the outer side surface of the connecting pin (4). 4.根据权利要求1或3所述的一种混凝土桩钢筋机械接头，其特征在于：所述插接销(4)与公套(3)的螺纹为细牙螺纹。4. A concrete pile reinforcement mechanical joint according to claim 1 or 3, characterized in that: the threads of the plug-in pin (4) and the male sleeve (3) are fine thread. 5.根据权利要求1或3所述的一种混凝土桩钢筋机械接头，其特征在于：所述母套(1)内壁设置有安装沟槽(201)，所述环形弹性体(5)经工具挤压变形后嵌入安装沟槽(201)内。5. A concrete pile reinforcement mechanical joint according to claim 1 or 3, characterized in that: the inner wall of the female sleeve (1) is provided with a mounting groove (201), and the annular elastic body (5) is provided with a tool After being squeezed and deformed, it is embedded in the installation groove (201). 6.根据权利要求1所述的一种混凝土桩钢筋机械接头，其特征在于：所述插接销(4)采用45H级合金钢，包括铬、镍元素。6 . The mechanical joint of concrete pile reinforcement according to claim 1 , wherein the plug-in pin ( 4 ) is made of 45H grade alloy steel, including chromium and nickel elements. 7 . 7.根据权利要求1所述的一种混凝土桩钢筋机械接头，其特征在于：所述环形弹性体(5)为金属弹簧或橡胶弹簧。7 . The mechanical joint of concrete pile reinforcement according to claim 1 , wherein the annular elastic body ( 5 ) is a metal spring or a rubber spring. 8 . 8.一种混凝土桩钢筋机械接头的连接方法，其特征在于：包括以下步骤：8. A connection method of a concrete pile reinforcing bar mechanical joint, characterized in that: comprising the following steps: S1.将钢筋(3)分别穿入公套(2)、母套(1)，墩头(6)与公套(2)、母套(1)末端内壁贴合；S1. Insert the steel bar (3) into the male sleeve (2) and the female sleeve (1) respectively, and fit the pier head (6) with the inner wall of the end of the male sleeve (2) and the female sleeve (1); S2.插接销(4)后端的连接螺纹(401)旋入公套(2)的螺纹孔，留出设定的插接距离；S2. The connecting thread (401) at the rear end of the insertion pin (4) is screwed into the threaded hole of the male sleeve (2), leaving a set insertion distance; S3.将环形弹性体(5)内包覆梯形铁块(7)，所述梯形铁块(7)外径比母套(1)内径小，包覆环形弹性体(5)后比母套(1)内径大；S3. The annular elastic body (5) is covered with a trapezoidal iron block (7). The outer diameter of the trapezoidal iron block (7) is smaller than the inner diameter of the female sleeve (1). (1) Large inner diameter; S4.将包覆有梯形铁块(7)的环形弹性体(5)压入母套(1)的安装沟槽内，调整同轴度，S4. Press the annular elastic body (5) covered with the trapezoidal iron block (7) into the installation groove of the female sleeve (1), adjust the coaxiality, S5.将公套(2)与插接销(4)插入母套(1)，球型挤压头压入环形弹性体(5)，环形弹性体(5)变形，卡接槽(403)与环形弹性体(5)锁定，梯形铁块(7)防止插接销(4)脱出，此时(2)与母套(1)无缝隙对顶。S5. Insert the male sleeve (2) and the plug pin (4) into the female sleeve (1), press the spherical extrusion head into the annular elastic body (5), the annular elastic body (5) is deformed, and the clamping groove (403) Locked with the annular elastic body (5), the trapezoidal iron block (7) prevents the insertion pin (4) from coming out, and at this time (2) and the female sleeve (1) are abutted against each other without a gap.
CN202110657408.6A 2021-06-11 2021-06-11 Concrete pile steel bar mechanical joint and connecting method thereof Pending CN113323280A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101550383B1 (en) * 2014-10-14 2015-09-07 거성 이.엔.지 주식회사 One-Touch Type Steel Reinforcement Coupler and Manufacturing Method Thereof
CN107268614A (en) * 2017-08-15 2017-10-20 袁雪峰 Precast concrete pile resistance to plucking mechanical splice
CN109296141A (en) * 2018-12-03 2019-02-01 沈阳建筑大学 Ellipsoid steel connection
CN109944355A (en) * 2019-04-29 2019-06-28 中冶建工集团有限公司 Rigidly connected assembly concrete shear wall and its assembly method
CN212715665U (en) * 2020-07-28 2021-03-16 江苏新高新型建材有限公司 Improved generation concrete pile steel bar connection sleeve integrated configuration
CN215253987U (en) * 2021-06-11 2021-12-21 江苏新高新型建材有限公司 Concrete pile reinforcing bar mechanical joint

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101550383B1 (en) * 2014-10-14 2015-09-07 거성 이.엔.지 주식회사 One-Touch Type Steel Reinforcement Coupler and Manufacturing Method Thereof
CN107268614A (en) * 2017-08-15 2017-10-20 袁雪峰 Precast concrete pile resistance to plucking mechanical splice
CN109296141A (en) * 2018-12-03 2019-02-01 沈阳建筑大学 Ellipsoid steel connection
CN109944355A (en) * 2019-04-29 2019-06-28 中冶建工集团有限公司 Rigidly connected assembly concrete shear wall and its assembly method
CN212715665U (en) * 2020-07-28 2021-03-16 江苏新高新型建材有限公司 Improved generation concrete pile steel bar connection sleeve integrated configuration
CN215253987U (en) * 2021-06-11 2021-12-21 江苏新高新型建材有限公司 Concrete pile reinforcing bar mechanical joint

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