Screw rod for high-safety chair ascending and descending

A high-safety, screw technology, applied in chairs, chairs, applications, etc. with vertically adjustable seats, can solve the problem of poor screw anti-rotation and falling function, and achieve reasonable and effective screw-locking anti-fall structure, establishment and release. The operation is convenient and quick, and it is not easy to accidentally rotate and fall.
CN110074576APending Publication Date: 2019-08-02淳安青节电子商务有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
淳安青节电子商务有限公司
Publication Date
2019-08-02

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Abstract

The invention belongs to the technical field of a screw rod structure, in particular to a screw rod for high-safety chair ascending and descending. The effect of preventing the screw rod for ascendingand descending from rotating and falling down is achieved in a mode of installing a screw rod main body unit, an inner sleeve tube unit and an insertion connection post unit on the outer sleeve tubeunit. The screw rod has the advantages that a screw rod clamping falling-prevention structure is reasonable and effective; the clamping state building and relieving operation is convenient and fast; the screw connection integral ascending and descending use effect is good; the accidental rotating falling cannot easily occur.
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Description

technical field

[0001] The invention belongs to the technical field of screw structures, and in particular relates to a screw for lifting and lowering a high-safety seat. Background technique

[0002] The seat lifting structure generally includes two methods: cylinder and screw. The former has the risk of explosion, while the latter is relatively easy to accidentally rotate and fall. Therefore, a screw with self-locking function is particularly urgently needed. The chair will not fall down after being adjusted to a certain height, ensuring the safety of screw height adjustment.

[0003] The patent announcement number is CN205226257U, and the Chinese utility model patent with the announcement date of 2016.05.11 discloses a structure that prevents the screw from rotating in a natural state. The platform ensures that the screw has no degree of freedom in the direction of rotation.

[0004] But the screw rod in this utility model patent has the problem that the function effect...

Claims

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