CN213655433U

CN213655433U - Screw special for connecting table and chair

Info

Publication number: CN213655433U
Application number: CN202022523233.3U
Authority: CN
Inventors: 孔京生
Original assignee: Jiashan Zhengli Fastener Co ltd
Current assignee: Jiashan Zhengli Fastener Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-07-09
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses a screw that table chair is connected is exclusively used in belongs to fastener technical field, and its technical scheme main points are including nut and screw rod, nut and screw rod integrated into one piece, and the nut is equipped with reinforcing apparatus, and reinforcing apparatus includes the sliding block and inserts the piece, and the nut is opened have with sliding block complex cavity and with insert a complex logical groove, cavity and logical groove intercommunication and sliding block and insert the piece inconsistent, the utility model aims to provide a screw in to the income article further consolidates the fixed of screw and object connection.

Description

Screw special for connecting table and chair

Technical Field

The utility model relates to a fastener technical field, more specifically say, it relates to a screw that table chair is connected is exclusively used in.

Background

The screw is a tool for fastening machine parts of the device step by utilizing the physics and mathematical principles of the inclined plane circular rotation and the friction force of the object, and the screw is a common fastener and is widely used on machinery, electrical appliances and buildings;

but present screw when boring into the article that needs the fastening and fastening the article, thereby only rely on the screw directly to contradict with the object and realize being connected or fixed to the object, the connected mode is comparatively simple, when receiving vibration or other external force, can make the screw slide out in the article that bores, makes the article that needs the fastening have dangerous factor.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims to provide a screw to turning into in the article further consolidates fixed that screw and object are connected.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a screw that table chair is connected is exclusively used in, includes nut and screw rod, nut and screw rod integrated into one piece, characterized by: the nut is equipped with reinforcing apparatus, and reinforcing apparatus includes the sliding block and inserts the piece, and the nut is opened have with sliding block complex cavity and with insert a piece complex logical groove, cavity and logical groove intercommunication and sliding block and insert the piece inconsistent.

The further scheme is as follows: insert the piece and be equipped with resilient means, lead to the groove and open and have the recess with resilient means complex, resilient means includes fixed block, spring and stop block, fixed block with insert piece fixed connection and stretch into the recess in, the stop block is fixed in the recess, the spring housing in the stop block and respectively with the equal fixed connection of inner wall and fixed block of recess.

The further scheme is as follows: the sliding block is provided with a pull ring which is fixedly connected with the sliding block.

The further scheme is as follows: the cavity is equipped with and hinders the movable block, hinders the opening part that the movable block is fixed in the cavity and just contradicts with the sliding block.

Through adopting above-mentioned technical scheme, when the screw changes into the object in, press the sliding block and make the sliding block promote to insert in the piece inserts the object, can prevent the screw for the rotation of object, avoid the screw to receive external force and not hard up roll-off, the pulling ring makes the sliding block return to initial position, inserts the piece and can return to the screw again under the effect of spring force in, alright normal roll out the screw.

Drawings

FIG. 1 is a front view of a screw;

FIG. 2 is a front cross-sectional structural view of the screw;

FIG. 3 is a schematic structural view of a pressing slider in a cross-sectional view;

FIG. 4 is a schematic top view of the screw;

FIG. 5 is a top cross-sectional structural view of the screw;

FIG. 6 is a top cross-sectional view of the screw with the insert block slid out;

FIG. 7 is a schematic view of a tab construction;

FIG. 8 is a schematic view of the rebounding apparatus;

in the figure: 1. a nut; 2. a screw; 3. a reinforcement device; 4. a slider; 5. inserting a block; 6. a cavity; 7. a through groove; 8. a rebounding device; 9. a groove; 10. a fixed block; 11. a spring; 12. a stopper block; 13. a pull ring; 14. and a blocking block.

Detailed Description

An embodiment of a screw specially used for connecting a table and a chair according to the present invention is further described with reference to fig. 1 to 8.

The utility model provides a screw that table chair is connected is exclusively used in, includes nut 1 and screw rod 2, nut 1 and 2 integrated into one piece of screw rod, characterized by: nut 1 is equipped with reinforcing apparatus 3, and reinforcing apparatus 3 includes sliding block 4 and inserts piece 5, and nut 1 is opened have with sliding block 4 complex cavity 6 and with insert piece 5 complex logical groove 7, cavity 6 and logical groove 7 intercommunication and sliding block 4 and insert piece 5 inconsistent.

The screw comprises a screw cap 1 and a screw rod 2, one end of the screw rod 2 is connected with the screw cap 1, the screw rod 2 and the screw cap 1 are integrally formed, the screw cap 1 is provided with a reinforcing device 3, the reinforcing device 3 comprises a sliding block 4 and an inserting block 5, the top end of the screw cap 1 can be provided with a cavity 6 which is matched with the sliding block 4 and can be used for the sliding block 4 to slide up and down, the side edge of the screw cap 1 can be provided with a through groove 7 which is matched with the inserting block 5 and can be used for the sliding block 5, the through groove 7 is communicated with the outside of the cavity 6 and the screw cap 1, the inserting block 5 is arranged in the through groove 7, one end of the inserting block 5 facing to the outside of the screw cap 1 can be adapted to the outer surface of the screw cap 1, so that the use of the screw cannot be influenced by the shape of the inserting block 5 in use, the other end of the inserting block 5 extends into the cavity 6, through sliding block 4 with insert the inconsistent inclined plane drive of piece 5 and insert piece 5 and arrange in leading to the groove 7 and slide, make and insert piece 5 and stretch out and lead to the groove 7, the piece 5 that inserts that stretches out can insert in the object that the screw changes over to, prevent that the screw from receiving external force and following not hard up the coming off on the object, further strengthened being connected between screw and the object, sliding block 4 no longer slides when sliding to 6 bottoms of cavity, sliding block 4 keeps conflicting with inserting piece 5, make and insert in the stable insert of piece 5, whole reinforcing apparatus 3 can be four, insert 5 orientation of piece 5 equality respectively towards four directions of orientation that four reinforcing apparatus 3 correspond, make reinforcing apparatus 3's effect more stable.

Insert piece 5 and be equipped with resilient means 8, lead to groove 7 and open recess 9 with resilient means 8 complex, resilient means 8 includes fixed block 10, spring 11 and stop block 12, fixed block 10 with insert piece 5 fixed connection and stretch into in the recess 9, stop block 12 is fixed in recess 9, spring 11 overlaps in stop block 12 and respectively with the equal fixed connection of inner wall and the fixed block 10 of recess 9.

The rebounding devices 8 can be arranged at two sides of the horizontal direction of the inserting blocks 5, each inserting block 5 can be provided with two rebounding devices 8, the inner wall of the through groove 7 can be provided with a groove 9 for placing and implementing the rebounding device 8, the groove 9 can be a cuboid-shaped groove 9, each rebounding device 8 comprises a fixing block 10, a spring 11 and a stopping block 12, the fixing block 10 can be in a metal block shape, the fixing block 10 can be arranged in the groove 9, one end of the fixing block 10 can extend into the through groove 7 to be fixedly bonded with the inserting block 5, the fixing block 10 and the inserting block 5 can form a whole body and can move together after being stressed, the stopping block 12 can be in a cylindrical metal, one end of the stopping block 12 can be fixedly bonded on the inner wall of the groove 9, the other end of the stopping block 12 can face the fixing block 10, the spring 11 can be sleeved on the stopping block 12, one end of the spring 11 can be fixedly bonded on, when the sliding block 4 is pulled back to the initial state, the sliding block 4 pushes the fixed block 10 through the elastic action of the spring 11 when not pushing the inserting block 5, the inserting block 5 which has penetrated into the object can be driven to be recovered into the through groove 7, the screw can be rotated out of the object according to the conventional method, the stop block 12 can limit the deformation direction of the spring 11, the elastic force direction of the spring 11 is prevented from being changed when the spring is extruded by force, and the stable implementation of the rebounding device 8 is ensured.

The sliding block 4 is provided with a pull ring 13, and the pull ring 13 is fixedly connected with the sliding block 4.

Pull ring 13 can be the semicircle ring-shaped metal, pull ring 13 can weld and be fixed in the tip of sliding block 4 towards 6 opening directions in cavity, when needs will insert piece 5 and retrieve to leading to the inslot 7, the thin colluding of accessible foreign object stretches into cavity 6 and catches on pull ring 13, pulling pull ring 13 makes sliding block 4 upwards slide to initial position, cause to insert piece 5 and retrieve to leading to the inslot 7 through resilient means 8's effect, be convenient for subsequent better with screw follow object extrication, drive sliding block 4 that can relax through pulling pull ring 13 slides.

The cavity 6 is provided with a blocking block 14, and the blocking block 14 is fixed at the opening of the cavity 6 and is abutted to the sliding block 4.

Block 14 can be cuboid metal block-shaped, blocks 14 and can weld the opening part that is fixed in cavity 6, and when sliding block 4 slided to the opening part of cavity 6, sliding block 4 can contradict with block 14 for sliding block 4 can not be by the interior roll-off of cavity 6, block 14 and not contact with pull ring 13, does not influence the implementation to whole reinforcing apparatus 3.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.

Claims

1. The utility model provides a screw that table chair is connected is exclusively used in, includes nut and screw rod, nut and screw rod integrated into one piece, characterized by: the nut is equipped with reinforcing apparatus, and reinforcing apparatus includes the sliding block and inserts the piece, and the nut is opened have with sliding block complex cavity and with insert a piece complex logical groove, cavity and logical groove intercommunication and sliding block and insert the piece inconsistent.

2. A screw specially used for connecting table and chair as claimed in claim 1, wherein: the inserting block is provided with a rebounding device, the through groove is provided with a groove matched with the rebounding device, the rebounding device comprises a fixing block, a spring and a stopping block, the fixing block is fixedly connected with the inserting block and extends into the groove, the stopping block is fixed in the groove, and the spring is sleeved on the stopping block and is respectively fixedly connected with the inner wall of the groove and the fixing block.

3. A screw specially used for connecting table and chair as claimed in claim 1, wherein: the sliding block is provided with a pull ring, and the pull ring is fixedly connected with the sliding block.

4. A screw specially used for connecting table and chair as claimed in claim 1, wherein: the cavity is equipped with and hinders the movable block, hinders the opening part that the movable block is fixed in the cavity and just contradicts with the sliding block.