Butterfly-shaped automatic door-closing speed-regulating hinge
A technology of automatic door closing and speed regulation, applied in the field of hinges, which can solve the problems of complex structure, oil leakage and high cost
Active Publication Date: 2013-12-04
ZHEJIANG YOUAN GAOKE FIRE FIGHTING SYST
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Problems solved by technology
[0002] At present, the existing automatic door-closing speed-regulating hinges on the market convert the rotary motion of the door leaf into the linear motion of the plunger through the engagement of the plunger rod with the male thread and the plunger with the female thread. The outer cylindrical surface of the female thread is machined with straight teeth and the inner tube of the door leaf of the speed-regulating hinge also has straight teeth. The two straight teeth are fixed in the radial direction and can slide in the axial direction. There are many seals that often leak oil, the structure is complex, the cost is high, and the efficiency is low. The straight teeth on the outside of the plunger are engaged with the straight teeth of the door leaf. The connection with the transmission part depends on rivets, which makes the transmission unreliable or oil leakage
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[0014] Such as Figure 1-Figure 5 As shown, a butterfly-shaped automatic door-closing speed-regulating hinge includes a single-tube leaf 1 and a double-tube leaf 2, and an automatic door-closing speed-regulating mechanism 3 is arranged in the tube body of the single-tube leaf 1 and the double-tube leaf 1 , the automatic door-closing speed regulating mechanism 3 includes a nut sleeve 31, a plunger 32, a plunger rod 33, a plunger cover 34, an oil cylinder cover 35, a speed regulating valve 36, a one-way valve 37 and a speed regulating screw rod 38, Wherein the nut sleeve 31 is fixedly arranged in the tube body 11 of the single tube page 1, the described plunger 32 and the plunger rod 33 are circumferentially interlocked and cooperated, and the plunger 32 is fixedly connected with a tube body 21 of the double tube page 2. In the embodiment of the present invention, the nut sleeve 31 is fixedly connected to the single tube sheet 1 through the toothed pad 4, the connecting sleeve 5...
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The invention relates to a hinge, and in particular relates to a butterfly-shaped automatic door-closing speed-regulating hinge. The technical scheme of the invention is as follows: the butterfly-shaped automatic door-closing speed-regulating hinge is characterized in that a nut sleeve is fixedly connected to a single tube hinge through a tooth-type cushion block, a connecting sleeve and a raised shoulder on the inner wall of the tube body of the single tube hinge; small teeth which can be extruded into the inner wall of the tube body of the single tube hinge are arranged on the periphery of the tooth-type cushion block; the lower end of the nut sleeve is resisted against the raised shoulder on the inner wall of the tube body of the single tube hinge; the upper end of the nut sleeve is resisted against the tooth-type cushion block; a raised block or notch on the nut sleeve is in blocking fit with the notch or raised block on the tooth-type cushion block; and the connecting sleeve is in thread fit with the tube body of the single tube hinge and is in pressing fit with the tooth-type cushion block. By using the technical scheme, the invention aims to overcome the defects and provides a novel butterfly-shaped automatic door-closing speed-regulating hinge which is free from rivet connection, is stable and reliable in connection and is conveniently assembled.
Description
technical field [0001] The invention relates to a hinge, in particular to a butterfly-shaped automatic door-closing speed-regulating hinge. Background technique [0002] At present, the existing automatic door-closing speed-regulating hinges on the market convert the rotary motion of the door leaf into the linear motion of the plunger through the engagement of the plunger rod with the male thread and the plunger with the female thread. The outer cylindrical surface of the female thread is machined with straight teeth and the inner tube of the door leaf of the speed-regulating hinge also has straight teeth. The two straight teeth are fixed in the radial direction and can slide in the axial direction. There are many seals that often leak oil, the structure is complex, the cost is high, and the efficiency is low. The straight teeth on the outside of the plunger are engaged with the straight teeth of the door leaf. The connection with the transmission part depends on rivets, wh...
Claims
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IPC IPC(8): E05F3/20E05F3/12
Inventor 李忠生顾胜康甘显虎
Owner ZHEJIANG YOUAN GAOKE FIRE FIGHTING SYST