CN213839249U

CN213839249U - Anti-backing loose screw

Info

Publication number: CN213839249U
Application number: CN202022493332.1U
Authority: CN
Inventors: 陆廷伟
Original assignee: Jiangsu Bofanke Precision Hardware Technology Co ltd
Current assignee: Jiangsu Bofanke Precision Hardware Technology Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-07-30
Anticipated expiration: 2030-11-02

Abstract

The utility model discloses a prevent moving back not hard up screw, including the elastic nail point, elastic nail point top surface fixed connection screw post, the cylinder chamber has been seted up to one side intermediate position that the screw post is close to the elastic nail point, cylinder chamber inner chamber intermediate position is provided with barb mechanism, the screw post surface is located the middle position in cylinder chamber and has seted up logical groove, screw top fixedly connected with nut, the fastening hole has been seted up to the nut intermediate position, fastening hole internal surface swing joint has the sucking disc, sucking disc top intermediate position swing joint has laminating mechanism, the utility model relates to a screw technical field. Utilize the screw to screw up to make inside barb stretch out, fix to utilize the inside air escape of sucking disc, form the negative pressure and adsorb, dual protection, protection screw in use's fastening type avoids becoming flexible and reverses.

Description

Anti-backing loose screw

Technical Field

The utility model relates to a screw technical field especially relates to a prevent moving back screw that becomes flexible.

Background

The screw is one of the essential spare parts on the car, and the main effect is that the part that will have the through-hole with have the part fixed connection of screw together, current car screw includes screw rod and head, and the screw thread pitch on the screw rod is equal, when using, directly screws in the screw hole with the screw to link together two spare parts and fix, such connected mode, after using for a certain time, the screw appears becoming flexible easily, especially uses this kind of screw on the car, receives the jolt of car, and the screw probably drops from the screw even, and the security performance is relatively poor.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem that exists among the background art, the utility model provides a prevent moving back screw that becomes flexible has solved current screw and has crossed the back when using for a certain time, and the screw appears becoming flexible easily, especially uses this kind of screw on the car, receives jolting of car, and the screw probably drops in the middle of the screw even, the relatively poor problem of security performance.

(II) technical scheme

The utility model provides a prevent moving back not hard up screw, including the elastic nail point, elastic nail point top surface fixed connection has the screw post, the screw post is close to one side intermediate position of elastic nail point and has seted up the cylinder chamber, cylinder chamber inner chamber intermediate position is provided with barb mechanism, the screw post surface is located the well upper position in cylinder chamber and has seted up logical groove, screw top fixedly connected with nut, the fastening hole has been seted up to the nut intermediate position, fastening hole internal surface swing joint has the sucking disc, sucking disc top intermediate position swing joint has laminating mechanism. Utilize the screw to screw up to make inside barb stretch out, fix to utilize the inside air escape of sucking disc, form the negative pressure and adsorb, dual protection, protection screw in use's fastening type avoids becoming flexible and reverses.

Preferably, the elastic nail point is run through and extends to elastic nail point inner chamber in cylinder chamber bottom, lead to one side and cylinder chamber intercommunication that groove is close to barb mechanism, lead to inslot surface and lead to groove swing joint.

Preferably, barb mechanism includes the foundation, the piece is decided to foundation top fixedly connected with, the equal rotation in position of deciding that piece top both sides are close to the logical groove is connected with the barb board, the one side intermediate position that the barb board is close to each other rotates and is connected with the vaulting pole, the one side intermediate position fixedly connected with reset spring that the vaulting pole is close to each other.

Preferably, the one end that barb board was kept away from to the vaulting pole is rotated with cylinder chamber inner chamber top and is connected, barb board surface and logical groove sliding connection.

Preferably, the laminating mechanism includes the screw thread post, cross fastening groove has been seted up to screw thread capital portion intermediate position, screw thread capital portion is located cross fastening groove outside fixedly connected with arc pole, the one end fixedly connected with laminating ring that the screw thread post was kept away from to the arc pole.

Preferably, the outer surface bottoms of the arc-shaped rod and the fitting ring are movably connected with the sucker, and the bottom of the sucker is movably connected with the nut.

Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has: make inside barb stretch out through utilizing the screw to screw up, fix to utilize the inside air escape of sucking disc, form the negative pressure and adsorb, dual protection, protection screw in use's fastening type avoids becoming flexible and reverses.

Drawings

Fig. 1 is the utility model provides a structural schematic diagram of prevent moving back not hard up screw.

Fig. 2 is the utility model provides a prevent moving back not hard up structural schematic of barb mechanism in screw.

Fig. 3 is the utility model provides a structural schematic diagram of laminating mechanism in anti-back-off loose screw.

Reference numerals: 1. elastic nail tips; 2. a screw post; 3. a cylindrical cavity; 4. a barb mechanism; 41. A bottom pillar; 42. fixing blocks; 43. a barb plate; 44. a stay bar; 45. a return spring; 5. a through groove; 6. a nut; 7. a fastening hole; 8. a suction cup; 9. a fitting mechanism; 91. a threaded post; 92. A cross fastening slot; 93. an arcuate bar; 94. and (5) fitting a ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the utility model provides a prevent moving back screw that becomes flexible, including elastic nail point 1, elastic nail point 1 top surface fixed connection has screw post 2, one side intermediate position that screw post 2 is close to elastic nail point 1 has seted up cylinder chamber 3, 3 inner chamber intermediate positions in cylinder chamber are provided with barb mechanism 4, 2 surfaces of screw post are located cylinder chamber 3 and go up the position and have seted up logical groove 5, 2 top fixed connection of screw post nut 6, fastening hole 7 has been seted up to 6 intermediate positions of nut, fastening hole 7 internal surface swing joint has sucking disc 8, 8 top intermediate position swing joint of sucking disc has laminating mechanism 9.

3 bottoms in cylinder chamber run through elastic nail point 1 and extend to 1 inner chamber in elastic nail point, lead to one side and 3 intercommunications in cylinder chamber that groove 5 is close to barb mechanism 4, lead to 5 internal surfaces of groove and lead to 5 swing joint in groove.

Barb mechanism 4 includes sill bar 41, and sill bar 41 top fixedly connected with decides piece 42, decides that the position that piece 42 top both sides are close to logical groove 5 all rotates and is connected with barb board 43, and barb board 43 rotates and is connected with vaulting pole 44 in the one side intermediate position that is close to each other, and vaulting pole 44 is one side intermediate position fixedly connected with reset spring 45 that is close to each other.

One end of the stay bar 44 far away from the barb plate 43 is rotatably connected with the top of the inner cavity of the cylindrical cavity 3, and the outer surface of the barb plate 43 is slidably connected with the through groove 5.

Laminating mechanism 9 includes threaded post 91, and threaded post 91 top intermediate position has seted up cross fastening groove 92, and threaded post 91 top is located the fixedly connected with arc pole 93 in the cross fastening groove 92 outside, and the one end fixedly connected with that threaded post 91 was kept away from to arc pole 93 closes ring 94.

The bottom of the outer surfaces of the arc-shaped rod 93 and the attaching ring 94 is movably connected with the sucker 8, and the bottom of the sucker 8 is movably connected with the screw cap 6.

During the use, place sucking disc 8 in the fastening hole 7 of nut 6, and fix the screw post 91 of laminating mechanism 9 and sucking disc 8 and fastening hole 7 each other, later twist through cross fastening groove 92 and move screw post 91, make screw post 91 fix sucking disc 8 in fastening hole 7, and drive screw post 2 and rotate, make the screw accomplish the installation, continue to twist and move screw post 2, make elastic nail point 1 receive pressure and contract, extrude the upstand 41, make the stator 42 drive barb board 43 upward movement, utilize the supporting force of reset spring 45, and the direction of vaulting pole 44, make barb board 43 stretch out along logical groove 5 and fix, and make the air in sucking disc 8 discharge, utilize laminating ring 94 to strengthen the laminating effect between sucking disc 8 and the mounting, strengthen the screw fastening effect.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a prevent moving back screw that becomes flexible, includes elasticity nail point (1), its characterized in that, elasticity nail point (1) top surface fixedly connected with screw post (2), cylinder chamber (3) have been seted up to one side intermediate position that screw post (2) are close to elasticity nail point (1), cylinder chamber (3) inner chamber intermediate position is provided with barb mechanism (4), logical groove (5) have been seted up to screw post (2) surface position in cylinder chamber (3), screw post (2) top fixedly connected with nut (6), fastening hole (7) have been seted up to nut (6) intermediate position, fastening hole (7) internal surface swing joint has sucking disc (8), sucking disc (8) top intermediate position swing joint has laminating mechanism (9).

2. An anti-back-loosening screw according to claim 1, wherein the bottom of the cylindrical cavity (3) penetrates through the elastic nail tip (1) and extends to the inner cavity of the elastic nail tip (1), one side of the through groove (5) close to the barb mechanism (4) is communicated with the cylindrical cavity (3), and the inner surface of the through groove (5) is movably connected with the through groove (5).

3. The screw with the function of preventing the loosening of the screw rod from the backward movement is characterized in that the barb mechanism (4) comprises a bottom column (41), a fixed block (42) is fixedly connected to the top of the bottom column (41), barb plates (43) are rotatably connected to positions, close to the through groove (5), of two sides of the top of the fixed block (42), a support rod (44) is rotatably connected to the middle position of one side, close to each other, of the barb plates (43), and a reset spring (45) is fixedly connected to the middle position of one side, close to each other, of the support rod (44).

4. An anti-back-loosening screw according to claim 3, wherein one end of the support rod (44) far away from the barb plate (43) is rotatably connected with the top of the inner cavity of the cylindrical cavity (3), and the outer surface of the barb plate (43) is slidably connected with the through groove (5).

5. The screw with the function of preventing loosening in the backward movement as claimed in claim 1, wherein the attaching mechanism (9) comprises a threaded column (91), a cross fastening groove (92) is formed in the middle of the top of the threaded column (91), an arc-shaped rod (93) is fixedly connected to the top of the threaded column (91) and located on the outer side of the cross fastening groove (92), and an attaching ring (94) is fixedly connected to one end, far away from the threaded column (91), of the arc-shaped rod (93).

6. The screw with the function of preventing the loosening of the screw is characterized in that the bottom of the outer surface of the arc-shaped rod (93) and the bottom of the outer surface of the attaching ring (94) are movably connected with a sucking disc (8), and the bottom of the sucking disc (8) is movably connected with a screw cap (6).