Polyethylene plastic steel winding drain pipe clamping hoop
A technology for polyethylene and drainage pipes, which is applied in the direction of pipes/pipe joints/fittings, sleeves/sockets, passing components, etc. It can solve problems such as rust or corrosion, inability to enter the pipe for construction, and short service life, etc., to achieve effective The effect of sealing water
Inactive Publication Date: 2013-04-24
林锐志
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Problems solved by technology
[0002] Polyethylene plastic-steel winding drainage pipe has been gradually applied in municipal large-diameter buried drainage and sewage engineering pipelines due to its good economic performance, high ring stiffness and good anti-corrosion ability. It is a new type of pipe and is currently used in the market The connection method of the pipeline is the connection between the stainless steel clamp and the electric heating belt. Due to the insufficient functions and defects of the two connection methods, since the outer surface of the pipeline is wound with a steel belt along the spiral line, it is connected by the electric heating belt. Plastic welding torches and plastic welding rods, weld the junction of the bottom of the spiral groove of the two pipe ports firmly, and then let the construction personnel climb into the pipe, use special equipment to support the joint of the two pipes on the inner wall of the pipe, and lay an electric melting belt for electric welding. Oxygen, the labor intensity of the construction personnel is high, the working conditions are poor, and when the pipe diameter is smaller than the height of the human body, the construction personnel cannot enter the pipe for construction, and cannot construct in places with water, which has great limitations, low efficiency, and extremely slow construction speed; The main problem of the stainless steel clamp connection is that the clamp itself is very poor in corrosion resistance, and is easily rusted or corroded by soil containing moisture, salt, alkali, and acidity, the service life is short, and the sealing performance is not ideal.
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[0011] The present invention will be further described below in conjunction with accompanying drawing by specific embodiment:
[0012] Such as Figure 1 to Figure 5 As shown, a hoop used for connecting a polyethylene plastic-steel winding drainage pipe, the upper and lower halves of the hoop (5) are made of a pair of plastic or glass fiber reinforced plastic, and are connected between the two pipes (1) and (2) ) before the connection construction, first fill the groove between the spiral steel strips at the two pipe ports with plastic welding or place glue blocks of corresponding shapes to the same height as the steel strips to form a water blocking wall (3) and Align the spiral steel strips of the two pipes along the spiral direction, such as figure 2 Place the upper and lower halves of the clamp (5) on the upper and lower ends of the interface between the pipe (1) and the pipe (2), and tighten them as figure 1 The bolt group (10) in the middle presses the radially outward...
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The invention relates to a polyethylene plastic steel winding drain pipe clamping hoop, and belongs to the technical field of large diameter buried drainage pipes. The a polyethylene plastic steel winding drain pipe clamping hoop comprises a pair of semicircular clamping hoops (5), a locking spiral ring (6), an arc pressing plate (7), an elastic sealing rubber sheet (8), a valgus blank pressing (9), and a bolt group (10). The polyethylene plastic steel winding drain pipe clamping hoop utilizes a locking spiral ring (6) structure so as to bring convenience to lock spiral steel belts on the outer surfaces of two pipes and enable the clamping hoop to be axially fixed with the pipes, and therefore the loosing of the two pipes is avoided. The polyethylene plastic steel winding drain pipe clamping hoop is tightly pressed on the spiral steel belts on the outer surfaces of the two pipes and a water plugging block (3) in a spiral groove through the valgus blank pressing (9) and the bolt group (10) by utilizing the arc pressing plate (7) and the elastic sealing rubber sheet (8), so that a good water sealing effect is achieved.
Description
technical field [0001] The invention relates to a connecting device of a large-diameter buried drainage and sewage pipe, in particular to a clamp for connecting a polyethylene plastic-steel winding drainage pipe. Background technique [0002] Polyethylene plastic-steel winding drainage pipe has been gradually applied in municipal large-diameter buried drainage and sewage engineering pipelines due to its good economic performance, high ring stiffness and good anti-corrosion ability. It is a new type of pipe and is currently used in the market The connection method of the pipeline is the connection between the stainless steel clamp and the electric heating belt. Due to the insufficient functions and defects of the two connection methods, since the outer surface of the pipeline is wound with a steel belt along the spiral line, it is connected by the electric heating belt. Plastic welding torches and plastic welding rods, weld the junction of the bottom of the spiral groove of t...
Claims
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Inventor 林锐志
Owner 林锐志