一种下水道钢筋混凝土排水管钢圈接头技术领域 本实用新型涉及一种接头，特别是一种用于下水道的钢筋混凝土排水管钢圈接头。 One kind sewer drain rims linker BACKGROUND RC  The present invention relates to a connector, especially reinforced concrete pipes steel ring joint for a sewer. 背景技术 下水道管道是一种用于排出污水或雨水的管道，用于收集和排放城市产生的生活废水和工业产生的工业废水，现有的下水道管主要是重力下水道系统，它的下水道管是倾斜向下的，其中污水的流动是依靠重力，在压力下水道系统中使用过压来输送污水通过小口径的下水道管，优点在于简单方便，但也存在容易损坏、漏水的问题，特别是两根水管的接合部，由于锈蚀和热胀冷缩，从而造成结合处变形而出现缝隙，并导致漏液，并给生活环境造成极大破坏。  sewer pipe is a pipe discharging waste water or rainwater is used, for industrial wastewater collection and discharge generated by the city sewage and industrial produced, existing sewer main gravity sewer system, it sewers the tube is inclined downwardly, wherein the flow of sewage is gravity, using an overpressure to transport water through small-bore sewer pipe in a pressure sewer system, the advantage of simple and convenient, but there are easily damaged, leakage problem, especially two pipe joints, due to the corrosion and thermal expansion and contraction, resulting in junction deformation occurs gap and lead to leakage, and cause great damage to the environment.  目前解决的方案一般是采用在钢圈内部增加支撑物或者是在接合部包覆其他材料，其优点为结实耐用，但不足之处为过程繁琐而造成拆装不便，另外其使用成本也大幅增加。  The current solution to the problem is generally used in the inner rims increased support or coated other materials at the joint, the advantage is durable, but the downside is a complicated process and causes disassembly inconvenience, while its cost It has increased significantly. 发明内容 本实用新型的目的在于，提供一种钢筋混凝土排水管钢圈接头，可极大的降低管道连接处发生渗漏的危险并提高管道的使用寿命。  The present invention aims to provide a reinforced concrete pipes rims joint, the risk of leakage can be greatly reduced pipe connections occur and increase the life of the pipeline.  一种钢筋混凝土排水管钢圈接头，所述钢圈圈体表面有多个向内侧的凹槽，使得钢圈圈体截面为多个连续S弯曲状。  A reinforced concrete pipes rims linker, circle surface of the steel with a plurality of grooves inside of the steel-circle form in cross section a plurality of consecutive S curved.  另外，钢圈两端有一向内侧的卷边，所述钢圈圈体截面可为三个连续S弯曲状，且钢圈表面的三个凹槽为平行排列。  Further, both ends of the steel ring there is always the inner bead, the steel circle body section can be continuously S curved three, and three recesses steel ring surface is arranged in parallel.  所述三个凹槽都是有作用的，第一个凹槽内嵌入遇水膨胀的橡胶圈，达到钢圈与水泥管之间缝隙的防水目的；第二个凹槽起到固定于水泥管体的作用，水泥管的钢筋网无需与钢圈焊接；第三个凹槽是管道施工安装时安放固定橡胶密封圈，起到两根管体连接防水作用。  The three recesses are useful, within the first recess embedded water-swellable rubber ring, to waterproof the purpose of the gap between the steel ring and cement pipes; the second recess functions as a fixed to the action of the cement pipe body, steel mesh concrete pipes without the steel ring welded; third grooves are placed stationary rubber ring when the pipeline construction and installation, play two tube connections waterproof.  本实用新型所述下水道钢圈管接头，其优点在于：钢圈圈体表面有凹槽可置入遇水膨胀的橡胶圈和橡胶密封圈，可起到钢圈与水泥管之间缝隙的防水目的；第二个凹槽可锚固于水泥管体，这样钢圈无需再与水泥管体中的钢筋网焊接，减少钢筋混凝土排水管制作工序的同时可大大降低管道施工中钢圈脱焊脱落的危险，另外还可大大降低制造成本， 管体的内部空间也比采用内置钢筋固定的要大。  The present invention said sewer steel ring pipe joint, which is advantageous in that: the steel circle surface with grooves can be placed in water-swellable rubber ring and rubber ring, can play underwire and cement pipes between waterproof purpose slot; while the second grooves may be anchored in the concrete pipe, such rims no longer with steel mesh welded concrete pipe body, reducing the reinforced concrete pipes manufacturing process can greatly reduce the pipeline construction underwire off dangerous welding shedding, the other can greatly reduce the manufacturing cost, the interior space of the tubular body is also fixed to be larger than that with built-in steel. 附图说明 图1为下水道钢圈管接头的结构示意图； 图2为下水道钢圈管接头的截面示意图。 BRIEF DESCRIPTION  FIG. 1 is a schematic view of the sewer steel ring pipe joint;  FIG. 2 is a schematic sectional view of the sewer rims pipe joint. 具体实施方式 下面通过具体实施方式来说明本实用新型，但并不限于此。 DETAILED DESCRIPTION  The following by specific embodiments to illustrate the invention, but is not limited thereto.  一种下水道钢圈管接头，其特征在于：所述钢圈1圈体表面有多个向内侧的凹槽2，使得钢圈圈体截面为多个连续S弯曲状。  A sewer rims pipe joint, wherein: said steel ring 1 ring surface with a plurality of grooves inside 2, the steel-circle form in cross section a plurality of consecutive S curved.  另外，钢圈两端有一向内侧的卷边3，所述钢圈1圈体截面可为三个连续S弯曲状， 且钢圈1表面的三个凹槽为平行排列。  Further, both ends of the steel ring has been inside the bead 3, the steel ring a collar body cross-section may be continuous S curved three, and three recesses a surface of the steel ring is arranged in parallel.  所述钢圈接头，可作为两个水泥管下水道的连接件之用，相比现有的钢圈，由于增加可用于填充弹性橡胶和起筋的凹槽，这样可增加钢圈的刚性并充分避免胶圈卡位不紧的问题，并杜绝管体间因其造成的渗漏现象。  The steel ring linker, as two cement pipe sewer connection purposes, compared to conventional underwire, the increase may be a recess for filling an elastic rubber and from ribs, so as to increase steel ring rigid and fully avoid apron a card is not tight problems and prevent leakage between the tube for its cause.