WO2018170980A1 - 一种钢筋连接用灌浆套筒 - Google Patents

一种钢筋连接用灌浆套筒 Download PDF

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Publication number
WO2018170980A1
WO2018170980A1 PCT/CN2017/080979 CN2017080979W WO2018170980A1 WO 2018170980 A1 WO2018170980 A1 WO 2018170980A1 CN 2017080979 W CN2017080979 W CN 2017080979W WO 2018170980 A1 WO2018170980 A1 WO 2018170980A1
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sleeve
grouting
sleeve body
reinforcing
bars according
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PCT/CN2017/080979
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English (en)
French (fr)
Inventor
谷明旺
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深圳市现代营造科技有限公司
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Priority claimed from CN201710176450.XA external-priority patent/CN106801488A/zh
Priority claimed from CN201720286510.9U external-priority patent/CN207245009U/zh
Application filed by 深圳市现代营造科技有限公司 filed Critical 深圳市现代营造科技有限公司
Publication of WO2018170980A1 publication Critical patent/WO2018170980A1/zh

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  • the invention relates to a grouting sleeve for connecting steel bars.
  • the grouting sleeve used in the prior art is mostly casted, and the inner wall of the grouting sleeve used to form the relevant inner cavity structure determines the tensile and compressive and shear resistance of the sleeve, and the sleeve inner cavity structure is sleeved.
  • the constraint mechanism and strain distribution have significant effects.
  • the strain distribution of the sleeve corresponds to the structure of the cavity, and it shows different rules in the smooth section and the deformation section.
  • the constraint of the sleeve on the grouting mainly comes from the mutual extrusion of the ribs of the inner wall.
  • the vertical component of the force, the constraint of the smooth section on the grouting depends on the size of the grouting deformation of the grout.
  • the present invention provides a grouting sleeve for reinforcing steel joints.
  • a grouting sleeve for reinforcing steel connection comprising a sleeve body, the sleeve body is provided with a grouting port at one end and a slurry discharging port at the other end, wherein the sleeve is The body is made of seamless steel pipe, and two or more twisted wires are arranged on the inner wall of the sleeve body.
  • the invention according to the above configuration is characterized in that a convex impinging line and a concave female line are formed on the inner wall of the sleeve body, and the spacing between adjacent ones of the male and female lines is equal.
  • the invention according to the above structure is characterized in that both ends of the sleeve body are provided with a sealing ring to form a full grouting sleeve.
  • the invention according to the above structure is characterized in that the seal ring is an elastic rubber seal ring.
  • the invention according to the above configuration is characterized in that one end of the sleeve body is provided with a reinforcing bar connecting portion to form a semi-grouting sleeve.
  • the reinforcing bar connecting portion is a constricted end, and the inner wall of the constricted end is provided with a thread.
  • the reinforcing bar connecting portion is a steel pipe elongated body, and the length of the steel pipe elongated body is 1/2 of the length of the sleeve body.
  • the invention according to the above structure is characterized in that the steel pipe extension body is joined to the steel bar by extrusion.
  • the present invention has the advantage that the seamless steel pipe is used as a raw material, and two or more twisted wires are formed on the inner wall of the steel pipe by the boring machine, and the convex imperial lines and the recesses are formed on the inner wall.
  • the haze line, the spacing between adjacent impotence lines is equal, the sleeve has good tensile, shear and compression resistance, and according to different requirements, it can be made into full grout sleeve or thread semi-grout sleeve, cold extrusion half.
  • the grouting sleeve has the advantages of simple structure, convenient processing and manufacturing, and avoids the disadvantages of high production waste, large pollution and high cost of the existing grouting sleeve.
  • Figure 1 is a schematic view showing the structure of a preferred embodiment 1 of the present invention.
  • Figure 2 is a cross-sectional view showing the structure of a preferred embodiment 1 of the present invention.
  • Figure 3 is a schematic cross-sectional view of a preferred embodiment 1 of the present invention.
  • Figure 4 is a schematic view showing the connection to the reinforcing bar of the preferred embodiment 1 of the present invention.
  • Figure 5 is a schematic view showing the structure of a preferred embodiment 2 of the present invention.
  • Figure 6 is a cross-sectional view showing the structure of a preferred embodiment 2 of the present invention.
  • Figure 7 is a schematic view showing the connection to the reinforcing bars of the preferred embodiment 2 of the present invention.
  • Figure 8 is a schematic view showing the structure of a preferred embodiment 3 of the present invention.
  • Figure 9 is a cross-sectional view showing the structure of a preferred embodiment 3 of the present invention.
  • Figure 10 is a schematic view showing the connection to the reinforcing bars of the preferred embodiment 3 of the present invention.
  • a grouting sleeve for connecting steel bars includes a sleeve body 22, one end of the sleeve body 22 is provided with a grouting port 23, and the other end is provided with a grouting port 24, and the sleeve body 22 is seamless.
  • the steel pipe is made, and two or more convex impotence lines 21 are disposed on the inner wall of the sleeve body 22, and a concave haze line is formed, and the spacing between adjacent impinging lines 21 is equal.
  • the two ends of the sleeve body 22 are provided with an elastic rubber sealing ring 25 to form a full irrigation. Slurry sleeve.
  • the steel bars 26 are respectively inserted at both ends, and are solidified and fixed by the grouting material 27.
  • the squall line disposed on the inner wall of the sleeve body 21 is an equidistant squall line, and in order to further improve the tensile, shearing and compressive resistance of the sleeve, a gradual twist line or a mixed twist line may be used, and at the same time, the twist line The degree of rotation can also be changed to meet different reinforcement connection requirements.
  • a grouting sleeve for reinforcing steel joints includes a sleeve body 2, one end of the sleeve body 2 is provided with a grouting port 3, and the other end is provided with a grouting port 4, and the sleeve body 2 is seamless.
  • the steel pipe is made, and the inner wall of the sleeve body 2 is provided with two or more convex impotence lines 1 along with the concave haze lines, and the spacing between the adjacent male and female lines 1 is equal.
  • one end of the sleeve body 2 is provided with a reinforcing bar connecting portion, the reinforcing bar connecting portion is a constricted end 5, and the inner wall of the constricted end 5 is provided with a thread 6 to form a semi-grouting sleeve.
  • the end of the reinforcing bar connecting portion is provided, and the reinforcing bar 7 at the end can be fixed by rotating insertion, and the reinforcing bar 7 can be directly inserted into the other end, and the grout 8 is solidified and fixed.
  • a grouting sleeve for reinforcing steel joints includes a sleeve body 12, a sleeve body 12 is provided with a grouting port 13 at one end, and a grouting port 14 is provided at the other end, and the sleeve body 12 is seamless.
  • the steel pipe is made, and the inner wall of the sleeve body 12 is provided with two or more convex impotence lines 11, and a concave haze line is formed, and the spacing between the adjacent male and female lines 11 is equal.
  • one end of the sleeve body 12 is provided with a steel bar connecting portion, the steel bar connecting portion is a steel pipe extending body 15, and the length of the steel pipe extending body 15 is 1/2 of the length of the sleeve body 12, forming a semi-grouting sleeve .
  • the end of the steel pipe extension body 15 is provided, and the steel pipe extension body 15 is pressed to make the steel pipe extension body 15 closely adhere to the steel bar 16, thereby achieving a fixed connection, and the other end directly inserts the steel bar 16 and is solidified and fixed by the grouting material 17. .

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  • Reinforcement Elements For Buildings (AREA)

Abstract

一种钢筋连接用灌浆套筒，套筒本体（22）由无缝钢管制成，两端分别设置有灌浆口（23）和出浆口（24），内壁上设置有阳膛线（21）。该灌浆套筒抗拉、抗剪及抗压能力好，可制成全灌浆套筒、螺纹半灌浆套筒或冷挤压半灌浆套筒。

Description

一种钢筋连接用灌浆套筒 【技术领域】
本发明涉及一种钢筋连接用灌浆套筒。
【背景技术】
现有技术使用的灌浆套筒多采用铸造形式，所使用的灌浆套筒的内壁形成相关的内腔结构决定了套筒的抗拉和抗压、抗剪能力，套筒内腔结构对套筒的约束机理及应变分布有显著影响,套筒应变分布与内腔结构对应,在平滑段和变形段表现出不同的规律；套筒对灌浆料的约束主要来自内壁凸出环肋处相互挤压力的竖向分力，平滑段对灌浆料的约束取决于灌浆料劈裂变形的大小。因此，在设计加工时需要在套筒内壁加工出多道的凸肋，半灌浆套筒加工时还必须为套筒加工一个连接用过度丝搭接头，使用球墨铸铁材料生产成型，由于球墨铸铁的材料需要进行配方，在原材料品质不稳定时，需要调整配方满足产品的力学性能要求，生产前的配方调整过程较长，虽然生产工艺成本较低，但球墨铸铁材料的价格较贵，在大直径钢筋的灌浆套筒中，产品用材多、价格贵，经济性不好。
以上缺陷，值得改进。
【发明内容】
为了克服现有的技术的不足,本发明提供了一种钢筋连接用灌浆套筒。
本发明技术方案如下所述：一种钢筋连接用灌浆套筒，包括套筒本体，所述套筒本体一端设置有灌浆口，另一端设置有出浆口，其特征在于，所述套筒 本体为无缝钢管制成，且所述套筒本体的内壁上设置有两条或两条以上膛线。
根据上述结构的本发明，其特征在于，所述套筒本体内壁上形成凸起的阳膛线和凹进的阴膛线，相邻的所述阳膛线之间的间距相等。
根据上述结构的本发明，其特征在于，所述套筒本体的两端设置有密封圈，形成全灌浆套筒。
根据上述结构的本发明，其特征在于，所述密封圈为弹性橡胶密封圈。
根据上述结构的本发明，其特征在于，所述套筒本体的一端设置有钢筋连接部，形成半灌浆套筒。
根据上述结构的本发明，其特征在于，所述钢筋连接部为缩口端，且所述缩口端的内壁上设置有螺纹。
根据上述结构的本发明，其特征在于，所述钢筋连接部为钢管延长体，所述钢管延长体的长度为所述套筒本体的长度的1/2。
根据上述结构的本发明，其特征在于，所述钢管延长体通过挤压与钢筋连接。
根据上述结构的本发明，其有益效果在于，本发明采用无缝钢管作为原材料，通过膛床加工在钢管内壁上形成两条或两条以上膛线，在内壁上形成凸起的阳膛线和凹进的阴膛线，相邻的阳膛线之间的间距相等，套筒的抗拉、抗剪及抗压能力好，且根据不同要求制成全灌浆套筒或者螺纹半灌浆套筒、冷挤压半灌浆套筒，结构简单、加工制造方便，避免了现有灌浆套筒的生产浪费高，污染大及成本高的缺点。
【附图说明】
图1为本发明的较佳实施例1的结构示意图。
图2为本发明的较佳实施例1的结构剖面图。
图3为本发明的较佳实施例1的横截面示意图。
图4为本发明的较佳实施例1的与钢筋连接的示意图。
图5为本发明的较佳实施例2的结构示意图。
图6为本发明的较佳实施例2的结构剖面图。
图7为本发明的较佳实施例2的与钢筋连接的示意图。
图8为本发明的较佳实施例3的结构示意图。
图9为本发明的较佳实施例3的结构剖面图。
图10为本发明的较佳实施例3的与钢筋连接的示意图。
在图中，1、阳膛线；2、套筒本体；3、灌浆口；4、出浆口；5、缩口端；6、螺纹；7、钢筋；8、灌浆料；11、阳膛线；12、套筒本体；13、灌浆口；14、出浆口；15、钢管延长体；16；钢筋；17；灌浆料；21、阳膛线；22、套筒本体；23、灌浆口；24、出浆口；25、弹性橡胶密封圈；26、钢筋；27、灌浆料。
【具体实施方式】
下面结合附图以及实施方式对本发明进行进一步的描述：
实施例1
如图1至4所示，一种钢筋连接用灌浆套筒，包括套筒本体22，套筒本体22一端设置有灌浆口23，另一端设置有出浆口24，套筒本体22为无缝钢管制成，且套筒本体22的内壁上设置有两条或两条以上凸起的阳膛线21，随之形成凹进的阴膛线，且相邻的阳膛线21之间的间距相等。
在本实施例中，套筒本体22的两端设置有弹性橡胶密封圈25，形成全灌 浆套筒。两端分别插入钢筋26，由灌浆料27凝固固定。
在本实施例中，套筒本体21的内壁上设置的膛线为等距膛线，为进一步提高套筒的抗拉、抗剪及抗压能力，还可以采用渐速膛线或混合膛线，同时，膛线的旋转程度也可以进行改变，以满足不同的钢筋连接要求。
实施例2
如图5至7所示，一种钢筋连接用灌浆套筒，包括套筒本体2，套筒本体2一端设置有灌浆口3，另一端设置有出浆口4，套筒本体2为无缝钢管制成，且套筒本体2的内壁上设置有两条或两条以上凸起的阳膛线1，随之形成凹进的阴膛线，且相邻的阳膛线1之间的间距相等。
在本实施例中，套筒本体2的一端设置有钢筋连接部，该钢筋连接部为缩口端5，且缩口端5的内壁上设置有螺纹6，形成半灌浆套筒。设置有钢筋连接部的这一端，可通过旋转插入，固定这一端的钢筋7，另一端直接插入钢筋7即可，由灌浆料8凝固固定。
实施例3
如图8至10所示，一种钢筋连接用灌浆套筒，包括套筒本体12，套筒本体12一端设置有灌浆口13，另一端设置有出浆口14，套筒本体12为无缝钢管制成，且套筒本体12的内壁上设置有两条或两条以上凸起的阳膛线11，随之形成凹进的阴膛线，且相邻的阳膛线11之间的间距相等。
在本实施例中，套筒本体12的一端设置有钢筋连接部，钢筋连接部为钢管延长体15，钢管延长体15的长度为套筒本体12的长度的1/2，形成半灌浆套筒。设置有钢管延长体15的这一端，通过挤压钢管延长体15，使得钢管延长体15与钢筋16紧密贴合，从而实现固定连接，另一端直接插入钢筋16即可，由灌浆料17凝固固定。
应当理解的是，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本发明所附权利要求的保护范围。
上面结合附图对本发明专利进行了示例性的描述，显然本发明专利的实现并不受上述方式的限制，只要采用了本发明专利的方法构思和技术方案进行的各种改进，或未经改进将本发明专利的构思和技术方案直接应用于其它场合的，均在本发明的保护范围内。

Claims (8)

  1. 一种钢筋连接用灌浆套筒，包括套筒本体，所述套筒本体一端设置有灌浆口，另一端设置有出浆口，其特征在于，所述套筒本体为无缝钢管制成，且所述套筒本体的内壁上设置有两条或两条以上膛线。
  2. 根据权利要求1所述的钢筋连接用灌浆套筒，其特征在于，所述套筒本体内壁上形成凸起的阳膛线和凹进的阴膛线，相邻的所述阳膛线之间的间距相等。
  3. 根据权利要求1所述的钢筋连接用灌浆套筒，其特征在于，所述套筒本体的两端设置有密封圈，形成全灌浆套筒。
  4. 根据权利要求3所述的钢筋连接用灌浆套筒，其特征在于，所述密封圈为弹性橡胶密封圈。
  5. 根据权利要求1所述的钢筋连接用灌浆套筒，其特征在于，所述套筒本体的一端设置有钢筋连接部，形成半灌浆套筒。
  6. 根据权利要求5所述的钢筋连接用灌浆套筒，其特征在于，所述钢筋连接部为缩口端，且所述缩口端的内壁上设置有螺纹。
  7. 根据权利要求5所述的钢筋连接用灌浆套筒，其特征在于，所述钢筋连接部为钢管延长体，所述钢管延长体的长度为所述套筒本体的长度的1/2。
  8. 根据权利要求7所述的钢筋连接用灌浆套筒，其特征在于，所述钢管延长体通过挤压与钢筋连接。
PCT/CN2017/080979 2017-03-23 2017-04-19 一种钢筋连接用灌浆套筒 WO2018170980A1 (zh)

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CN201720286510.9 2017-03-23
CN201710176450.XA CN106801488A (zh) 2017-03-23 2017-03-23 一种钢筋连接用灌浆套筒
CN201710176450.X 2017-03-23
CN201720286510.9U CN207245009U (zh) 2017-03-23 2017-03-23 一种钢筋连接用灌浆套筒

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CN113982664A (zh) * 2021-10-26 2022-01-28 中冶沈勘工程技术有限公司 一种粘结式纤维锚杆连接套筒及纤维锚杆连接方法

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RU105647U1 (ru) * 2010-12-14 2011-06-20 Владимир Николаевич Власов Муфтовое соединение стержневой арматуры
CN103899043A (zh) * 2014-04-10 2014-07-02 东南大学 内嵌锥状体的半灌浆套筒
CN104818805A (zh) * 2015-05-27 2015-08-05 杨文琳 具有内焊接凸肋的钢筋连接用灌浆套筒及制造和使用方法
CN105298025A (zh) * 2015-11-10 2016-02-03 丁勇 一种连续螺旋状灌浆套筒
CN205935417U (zh) * 2016-07-08 2017-02-08 北京建筑大学 一种带螺纹连接件的半灌浆套筒

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Publication number Priority date Publication date Assignee Title
US6202282B1 (en) * 1995-01-26 2001-03-20 Barsplice Products, Inc. Method of making a tubular coupler for concrete reinforcing bars
RU105647U1 (ru) * 2010-12-14 2011-06-20 Владимир Николаевич Власов Муфтовое соединение стержневой арматуры
CN103899043A (zh) * 2014-04-10 2014-07-02 东南大学 内嵌锥状体的半灌浆套筒
CN104818805A (zh) * 2015-05-27 2015-08-05 杨文琳 具有内焊接凸肋的钢筋连接用灌浆套筒及制造和使用方法
CN105298025A (zh) * 2015-11-10 2016-02-03 丁勇 一种连续螺旋状灌浆套筒
CN205935417U (zh) * 2016-07-08 2017-02-08 北京建筑大学 一种带螺纹连接件的半灌浆套筒

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113982664A (zh) * 2021-10-26 2022-01-28 中冶沈勘工程技术有限公司 一种粘结式纤维锚杆连接套筒及纤维锚杆连接方法
CN113982664B (zh) * 2021-10-26 2024-04-09 中冶沈勘工程技术有限公司 一种粘结式纤维锚杆连接套筒及纤维锚杆连接方法

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