CN213331983U

CN213331983U - Combined screw with locking structure

Info

Publication number: CN213331983U
Application number: CN202021399611.5U
Authority: CN
Inventors: 朱飞华
Original assignee: Yichen Hardware Zhejiang Co ltd
Current assignee: Yichen Hardware Zhejiang Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-06-01
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a combination screw with lock dead structure, including the screw body, nut, the back cover body, ring form and the front cover body, be equipped with threaded connection's nut on the screw rod of the screw body, the rear end of nut is equipped with the front cover body that the cover was established on the screw rod of the screw body, be equipped with threaded connection's the back cover body on the front cover body, the back cover body backward motion is the same with the direction of rotation that the nut pine unloaded to the direction of rotation of the front cover body, the rear end of the back cover body is equipped with the ring form, the rear end of ring form is equipped with the connecting seat, be equipped with first through-hole on the connecting seat, compare with prior art, can the locking effectual, convenient to use.

Description

Combined screw with locking structure

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of fastener, especially a combination screw's technical field with dead structure of lock.

[ background of the invention ]

The screw is a tool for fastening machine parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and the friction force of the object, and the screw is used as a fastening piece in the mechanical field in a large quantity.

The screw is at fixed connection's in-process, owing to can be through rocking and vibration many times, easily produces not hard up, and then probably drops, influences the effect of fastening, and some locking fastening screw also only play certain locking fastening, through be close to on the gasket by the anti-loosening protrusion of design or line on the surface of one side of connecting piece, produce wearing and tearing to the surface of being connected piece easily, the anti-loosening effect is poor.

[ Utility model ] content

The utility model aims at solving the problem in the prior art, providing a combination screw with dead structure of lock, can locking not hard up effectual, convenient to use.

In order to achieve the above object, the utility model provides a combination screw with lock dead structure, including the screw body, nut, the back cover body, ring form and the front cover body, be equipped with threaded connection's nut on the screw rod of the screw body, the rear end of nut is equipped with the front cover body that the cover was established on the screw rod of the screw body, be equipped with threaded connection's the back cover body on the front cover body, the back cover body backward motion is the same with the direction of rotation that the nut pine unloaded to the direction of rotation of the front cover body, the rear end of the back cover body is equipped with the ring form, the rear end of ring form is equipped with the connecting seat, be equipped with first through-hole on the connecting seat, be equipped with the second through-hole corresponding with first through-hole on the screw rod of the screw body, wear to be equipped with bolt.

Preferably, the bolt mechanism comprises a T-shaped pin shaft, and a telescopic blocking mechanism is arranged at the lower end of the T-shaped pin shaft.

Preferably, the blocking mechanism comprises a bolt and a spring, a blind hole is formed in the front side of the lower end of the T-shaped pin shaft, a slidable bolt is arranged in the blind hole, and the rear end of the bolt is fixedly connected with the blind end of the blind hole through the spring.

Preferably, the outer end of the bolt is arc-shaped.

The utility model has the advantages that: the utility model discloses a back cover body realizes the screw rod fixed connection of ring form and screw body through the cooperation that is equipped with first through-hole, second through-hole and stop gear on the connecting seat, and the same direction of rotation that unloads with the nut pine of the direction of rotation of the preceding cover body back cover body rearward movement, and then the fixed unable motion of cover body, consequently, the nut can not loosen and unload the rotation, compares with prior art, can locking not hard up effectual, convenient to use.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of a combination screw with a dead-locking structure according to the present invention.

In the figure: 1-screw body, 2-nut, 3-rear sleeve body, 4-annular body, 5-front sleeve body, 6-connecting seat, 7-first through hole, 8-second through hole, 9-bolt mechanism, 91-T-shaped pin shaft, 92-blocking mechanism, 93-blind hole, 921-bolt and 922-spring.

[ detailed description ] embodiments

Referring to fig. 1, the utility model relates to a combined screw with locking structure, which comprises a screw body 1, a nut 2, a rear sleeve body 3, a ring body 4 and a front sleeve body 5, wherein the screw rod of the screw body 1 is provided with the nut 2 in threaded connection, the rear end of the nut 2 is provided with the front sleeve body 5 sleeved on the screw rod of the screw body 1, the front sleeve body 5 is provided with the rear sleeve body 3 in threaded connection, the rotation direction of the front sleeve body 5 is the same as the loosening and unloading rotation direction of the nut 2, the rear sleeve body 3 moves backwards, the rear end of the rear sleeve body 3 is provided with the ring body 4, the rear end of the ring body 4 is provided with a connecting seat 6, the connecting seat 6 is provided with a first through hole 7, the screw rod of the screw body 1 is provided with a second through hole 8 corresponding to the first through hole 7, a bolt mechanism 9 is arranged in the first through hole 7 and the second through hole 8 in a, the lower extreme of T shape round pin axle 91 is equipped with telescopic stop gear 92, stop gear 92 includes bolt 921 and spring 922, the lower extreme front side of T shape round pin axle 91 is equipped with blind hole 93, be equipped with slidable bolt 921 in the blind hole 93, the blind end fixed connection of spring 922 and blind hole 93 is passed through to the rear end of bolt 921, the outer end of bolt 921 is the arc.

The utility model discloses the working process:

the utility model relates to a combination screw with dead structure of lock is in the course of the work, with the back cover body 3 through being equipped with first through-hole 7 on connecting seat 6, the screw rod fixed connection of second through-hole 8 and blocking mechanism 92 cooperation realization ring body 4 and screw body 1, and the same back cover body 3 backward motion of the direction of rotation that the same nut 2 pine of the direction of rotation of the preceding cover body 5 was unloaded, then cover body 3 is fixed unable motion, consequently, the rotation is unloaded to nut 2 unable pine, compared with the prior art, can locking up effectual, high durability and convenient use.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. A combination screw with deadlocking structure, its characterized in that: comprises a screw body (1), a nut (2), a rear sleeve body (3), an annular body (4) and a front sleeve body (5), a screw rod of the screw body (1) is provided with a nut (2) in threaded connection, the rear end of the nut (2) is provided with a front sleeve body (5) sleeved on the screw rod of the screw body (1), the front sleeve body (5) is provided with a rear sleeve body (3) in threaded connection, the rotation direction of the front sleeve body (5) is the same as the loosening rotation direction of the nut (2), the rear sleeve body (3) moves backwards, the rear end of the rear sleeve body (3) is provided with an annular body (4), the rear end of the annular body (4) is provided with a connecting seat (6), a first through hole (7) is arranged on the connecting seat (6), a second through hole (8) corresponding to the first through hole (7) is arranged on a screw rod of the screw body (1), and a bolt mechanism (9) is arranged in the first through hole (7) and the second through hole (8) in a penetrating way.

2. A combination screw having a deadlocking feature, as defined in claim 1, wherein: the bolt mechanism (9) comprises a T-shaped pin shaft (91), and a telescopic blocking mechanism (92) is arranged at the lower end of the T-shaped pin shaft (91).

3. A combination screw having a deadlocking feature, as defined in claim 2, wherein: stop gear (92) are including bolt (921) and spring (922), the lower extreme front side of T shape round pin axle (91) is equipped with blind hole (93), be equipped with slidable bolt (921) in blind hole (93), the blind end fixed connection of spring (922) and blind hole (93) is passed through to the rear end of bolt (921).

4. A combination screw having a deadlocking feature, as defined in claim 3, wherein: the outer end of the bolt (921) is arc-shaped.