Quick-change clamp

Abstract

The invention discloses a quick-change clamp. The quick-change clamp comprises an upper clamping block and a lower clamping block which are oppositely arranged, wherein the upper clamping block and the lower clamping block are both arc-shaped rings smaller than a semicircle; a sealing groove is formed in the inner sides of the upper clamping block and the lower clamping block, and a sealing ring is arranged in the sealing groove; one ends of the upper clamping block and the lower clamping block are connected through a screw joint structure, and the other ends are connected through a hinge structure; the upper clamping block and the lower clamping block are fastened through the screw joint structure and the hinge structure, so that the opposite ends of the upper clamping block and the lower clamping block move towards each other to be in contact with each other; rapid installation of a pipe body can be achieved, the installation efficiency is high, the extrusion amount of the sealing ring during clamp installation can be reduced, water leakage caused by poor contact between the sealing ring and a pipeline is avoided, and the sealing effect is improved; the ring lip of the sealing ring can be prevented from being adhered to the inner circumferential surface of the sealing ring, and the lasting sealing performance is guaranteed; rubber ring materials can be reduced, and the production cost is reduced; and excessive extrusion of the local position of the sealing ring caused by mutual movement between the pipe body and the sealing ring can be avoided.

Description

technical field [0001] The invention relates to a quick-change clamp, which belongs to the technical field of pipeline connection. Background technique [0002] Clamp is a connecting device for connecting grooved pipe fittings, valves and pipeline fittings. Generally, there are two types of clamps, one is soft clamp and the other is steel clamp. The traditional clamp generally consists of two complete The same clamp body, rubber sealing ring and two sets of connecting bolts are used to seal the interface of the two pipes through the rubber sealing ring in the clamp. The clamp with this structure has the following disadvantages when connecting two pipes: [0003] 1. Two sets of bolts need to be installed, which is time-consuming, labor-intensive, slow in installation speed and low in efficiency. [0004] 2. During the installation process, there will be a gap at the end of the clamp. When the clamp is fastened on the pipe, the excessive pressure deformation of the sealing ri...

AI Technical Summary

Problems solved by technology

[0003] 1. Two sets of bolts need to be installed, which is time-consuming, labor-intensive, slow in installation speed and low in efficiency

[0004] 2. During the installation process, there will be a gap at the end of the clamp. When the clamp is fastened on the pipe, the excessive pressure deformation of the sealing ring will protrude from the gap, which will easily cause the part corresponding to the protruding part of the sealing ring Poor contact between the section and the pipeline, resulting in seal failure and leakage

[0005] 3. After the existing clamp has been installed for a long time, if it is not used for a long time, the rubber sealing ring will gradually age. Under the extrusion of the pipe body, it will easily cause the ring lip part on the rubber sealing ring to squeeze the inner peripheral surface of the rubber sealing ring Adhesion occurs when they are together (rubber self-dissolution), and the fluid cannot flow between the ring lip and the rubber ring body, so that the ring lip loses its tightness and causes leakage

[0006] 4. The sealing ring in the existing clamp uses more materials and the production cost is high

[0007] 5. After the existing clamps are installed, the positions of the ends of the two pipe bodies are uncertain, and the pipe body and the sealing ring bracket have mutual movement, which causes excessive extrusion and deformation of the local position of the sealing ring, causing leakage

[0008] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

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