Rotary connecting structure for feed delivery hose of jet plane
A technology of rotary connection and hose connection, which is applied in wellbore lining, tunnel lining, underground chamber, etc. The effect of reducing pressure loss, preventing distortion and reducing the possibility of pipe blockage
Active Publication Date: 2014-07-16
CHENGDU XINZHU CONCRETE MASCH EQUIP CO LTD
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Problems solved by technology
[0002] At present, when the jetting machine sprays concrete on the support surface in the tunnel, the nozzle needs to perform continuous 360° brushing operation to ensure uniform spraying of the support surface. The concrete hose at the connection with the nozzle inevitably has a rotational torque, causing The hose at the connection is twisted and deformed, which increases the pumping pressure, creates a potential danger of plugging, and frequent twisting will reduce the service life of the hose
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Embodiment Construction
[0015] The present invention will be further described below in conjunction with specific embodiments and drawings.
[0016] Such as Figure 1-Figure 5 As shown, a rotary connection structure for feeding hose of a jet machine includes a nozzle mounting frame 1 and a hose connecting flange 2. The nozzle mounting frame 1 has a connecting shaft sleeve 1a along the outer wall of the connecting shaft sleeve 1a. A groove 1c is provided on the circumference. Two semicircular clamps 3 are installed in the groove 1c, and the semicircular clamp 3 can rotate along the groove 1c. The flange 2b of the hose connecting flange 2 and the two semicircular clamps 3 are fixed by bolts 6. connection.
[0017] Such as Figure 5 As shown, an o-shaped sealing ring 4 and a lip-shaped sealing ring 5 are arranged between the flange 2b of the hose connecting flange 2 and the connecting shaft sleeve 1a, so as to achieve the effect of double sealing protection and effectively prevent the concrete slurry from s...
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The invention discloses a rotary connecting structure for a feed delivery hose of a jet plane. The rotary connecting structure comprises a jet nozzle mounting rack and a hose connecting flange, wherein a connecting shaft sleeve is connected to one end of the jet nozzle mounting rack; a groove is formed along the periphery of the outer wall of the connecting shaft sleeve; two semicircular clamps are mounted in the groove and can rotate along the groove; and a flange plate of the hose connecting flange is fixedly connected with the two semicircular clamps. After a concrete hose is connected to the rotary connecting structure, when a jet head mechanism performs a continuous 360-degree brush operation, the concrete hose can perform a rotary movement relative to the jet head mechanism, so as to prevent the concrete hose from moving with the jet head and distorting, and further reduce the possibility that the pipe is blocked during pumping; and through adoption of dual seal protection of an O-shaped seal ring and a lip-type seal ring, the leakage of concrete grout and the pressure loss of pumping can be effectively prevented.
Description
Technical field [0001] The invention relates to a connection structure between a spray head and a material conveying hose on a spraying machine, in particular to a rotating connection structure for a spraying machine material conveying hose. Background technique [0002] At present, when the sprayer sprays concrete on the supporting surface in the tunnel, the nozzle needs to perform continuous 360° brushing operation to ensure uniform spraying of the supporting surface. The concrete hose connected with the nozzle inevitably has a rotating torque, resulting in The hose at the connection is twisted and deformed, thereby increasing the pumping pressure, forming a potential risk of pipe blockage, and frequent twisting will shorten the service life of the hose. Summary of the invention [0003] The purpose of the present invention is to address the above-mentioned shortcomings of the prior art and provide a rotating structure that can effectively prevent the concrete hose from being tw...
Claims
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IPC IPC(8): E21D11/10
Inventor 刘恒董红波张世平周和勇李波
Owner CHENGDU XINZHU CONCRETE MASCH EQUIP CO LTD