Anti-theft device for pvc drainage pipe and manufacturing method thereof

Abstract

The invention provides a PVC drainage pipe anti-theft device and a manufacturing method thereof, and belongs to the field of parts related to drainage pipes. The problem that an existing drainage pipeanti-theft device is poor in anti-theft effect is solved. The PVC drainage pipe anti-theft device comprises an anti-climbing plate and an anti-theft plate of which the outer side surface is providedwith anti-theft thorns, and the anti-climbing plate is provided with thorn outlet holes; a connection box is fixed to the rear side surface of the anti-climbing plate and comprises a back plate and four coamings, and the back plate and the anti-climbing plate form a connection area through the four coamings; a supporting plate and the anti-climbing plate are arranged in the connection area, the anti-climbing plate and the supporting plate are provided with front penetrating holes and rear penetrating holes, the front side surface of the anti-theft plate is provided with a reset groove, and thefront ends of the front penetrating holes are located in the reset groove; a penetrating rod and a reset spring are further included, wherein the rear end of the penetrating rod is fixedly provided with a stop block, the front end of the penetrating rod penetrates through the front penetrating holes and the rear penetrating holes and is fixed to the back plate; and the reset spring is arranged onthe penetrating rod in a sleeving mode, the front side surface of the supporting plate is provided with a supporting strip, and the rear side surface of the anti-theft plate is provided with a supporting groove. The PVC drainage pipe anti-theft device is more convenient to operate, better in anti-theft effect and more stable in structure.

Description

technical field [0001] The invention belongs to the technical field of drain pipe anti-theft, and relates to a PVC drain pipe anti-theft device and a manufacturing method thereof. Background technique [0002] In order to prevent theft from climbing through the drainpipe, the existing method is to install an anti-theft plate with anti-theft thorns on the drainpipe, but the anti-theft thorns on the ordinary anti-theft plate cannot be adjusted, which will affect the normal construction of the external wall . [0003] The existing application number is 201811010475.3, which is a Chinese invention patent named "An Anti-theft Structure for PVC Drainage Pipes". The board moves laterally, thereby controlling the anti-theft thorns of the anti-theft board to expand and contract in the anti-climbing hole, so as to prevent theft or facilitate maintenance. But it has the following problems: [0004] 1. Loosen the pull plate to retract the anti-theft thorns to avoid affecting the cons...

AI Technical Summary

Problems solved by technology

[0005] 2. Only the four corners of the anti-theft board can be reinforced by the combination of slide bars and sliding holes, and the anti-theft board does not have anti-theft thorns at the four corners, but is covered with anti-theft thorns, so it is impossible to reinforce all the anti-theft thorns. If multiple places are installed Sliding rod, the structure is very complex

[0006] 3. In order to be able to move the pull plate laterally, the anti-climbing hole needs to be larger than the lateral width of the anti-theft thorn, resulting in loose overall structure and poor stability

[0007] 4. When the anti-theft thorn is hidden in the anti-climbing hole, the lock plate and pull plate will still protrude outside the anti-climbing plate, which will still affect the construction of the external wall

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