CN218294148U

CN218294148U - Screw fastening structure

Info

Publication number: CN218294148U
Application number: CN202221787985.3U
Authority: CN
Inventors: 张绍耀
Original assignee: Lianyungang Deyou Precision Work Technology Co ltd
Current assignee: Lianyungang Deyou Precision Work Technology Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2023-01-13
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a screw fastening structure, including the screwhead, the side is equipped with thick screw rod on the screwhead, thick screw rod upper end is equipped with thin screw rod, thick screw rod surface cover is equipped with locking gasket not hard up, thick screw rod surface cover is equipped with fastening components, the screwhead lower extreme is equipped with the knob. The utility model discloses simple structure, manufacturing cost is lower, can effectively fasten the screw through gasket and the fastening components who sets up, effectively avoid leading to the screw not hard up and produce the damage to the device because vibrations, increase area of contact through the gasket episphere form rubber that sets up, reduce pressure and prevent not hard up, also can play the protection effect to being fixed, excessive fastening can not appear and cause the damage to being fixed, and the knob constructor through setting up need not screw up fixedly with the help of other instruments to the screw, therefore, the cost is saved, the work efficiency is improved, and the utility model has the practicality.

Description

Screw fastening structure

Technical Field

The utility model relates to a screw technical field especially relates to a screw fastening structure.

Background

Screws are a common fastener and are widely used in machinery, electrical appliances and buildings. Generally, the material is metal or plastic, the cylindrical shape, the surface of which is engraved with concave and convex grooves called as screw threads, and screw type fasteners are often used for fixing the position of parts, and have very important function.

The existing Chinese patent with reference application number 202022156912.1 discloses a locking screw fastening structure, which comprises a screw head, a compression spring and a screw, wherein the locking screw is deeply designed, so that the screw is not easy to loosen, but the structure is complex, the production and manufacturing cost is high, and the screw needs to be screwed and fixed by other tools, which is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a screw fastening structure in order to solve the shortcoming that exists among the prior art.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a screw fastening structure, includes the screwhead, the side is equipped with thick screw rod on the screwhead, thick screw rod upper end is equipped with thin screw rod, thick screw rod surface cover is equipped with locking gasket, thick screw rod surface cover is equipped with fastening components, the screwhead lower extreme is equipped with the knob.

Preferably, fastening components establishes the lower fixing ring at thick screw rod surface including the cover, lower fixing ring upper end fixedly connected with fixture block ring, fixture block ring inner wall fixed mounting has the fixture block, thin screw rod lateral surface cover is equipped with the draw-in groove ring, draw-in groove and spout have been seted up in proper order to draw-in groove lateral surface from the bottom up.

Preferably, the outer side surface of the thin screw rod and the inner wall of the clamping groove ring are provided with clockwise threads, the outer side surface of the thick screw rod and the inner wall of the clamping groove ring are provided with anticlockwise threads, the outer side surface of the thick screw rod and the inner wall of the clamping groove ring are in threaded connection, and the thin screw rod and the inner wall of the clamping groove ring are in threaded connection.

Preferably, the upper end of the lower fixing ring is rotatably connected with the lower end of the fixture block ring. The upper end of the clamping groove ring is rotatably connected with the lower end of the upper fixing ring, the number of the clamping blocks is two, and the clamping blocks are symmetrically distributed on the inner wall of the clamping block ring.

Preferably, the sliding grooves are arc-shaped, the number of the sliding grooves is two, the inlet grooves are communicated with the sliding grooves, and the sliding grooves are internally provided with clockwise limiting teeth.

Preferably, the gasket is in a circular sheet shape with a circular hole in the middle, and a plurality of semicircular rubbers are arranged on the outer surface of the gasket.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, the gasket can increase the contact area, reduce the pressure, prevent the loosening, protect the part and the screw through the gasket and the fastening component, the fastening component can fasten the lower fixing ring to the fixing piece, the fastening effect is greatly enhanced, the loosening of the screw caused by the vibration is effectively avoided, and the structure is simpler;

2. in the utility model, the rotary button is fixedly connected with the lower end of the screw head through the rotary button, so that constructors do not need to screw and fix the screw by means of other tools, thereby saving the cost and improving the working efficiency;

to sum up, the utility model discloses simple structure, manufacturing cost is lower, can effectively fasten the screw, effectively avoids leading to the screw not hard up because of vibrations and produce the damage to the device, also can play the protection effect to being fixed moreover, can not produce excessive fastening and cause the damage to being fixed by the mounting, and constructor need not screw up fixedly the screw with the help of other instruments in addition, practices thrift the cost, improves work efficiency.

Drawings

Fig. 1 is an overall structure of a screw fastening structure provided by the present invention;

fig. 2 is an exploded view of a screw fastening structure according to the present invention;

fig. 3 is a fastening assembly diagram of a screw fastening structure according to the present invention.

In the figure: 1. a screw head; 2. a thick screw rod; 3. a fine screw rod; 4. a gasket; 5. a fastening assembly; 51. a lower fixing ring; 52. a block ring; 53. a clamping block; 54. an upper fixing ring; 55. A groove clamping ring; 56. entering the groove; 57. a chute; 6. the knob is rotated.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a screw fastening structure, including screwhead 1, the side is equipped with thick screw rod 2 on screwhead 1, thick screw rod 2 upper end is equipped with

thin screw rod

3, 2 surface covers of thick screw rod are equipped with locking gasket 4, gasket 4 can increase area of contact, reduce pressure, prevent to become flexible, protection part and screw, 2 surface covers of thick screw rod are equipped with fastening components 5, fastening components 5 can effectively prevent to lead to the screw not hard up because of vibrations, 1 lower extreme of screwhead is equipped with knob 6, knob 6 can make constructor need not fix the screw with the help of other instruments are twisted to the screw.

Wherein, fastening components 5 including the cover establish at the 2 outer fixed ring 51 of thick screw rod, fixed ring 51 upper end fixedly connected with fixture block ring 52 down, fixture block ring 52 inner wall fixed mounting has

fixture block

53, and 3 lateral surface covers of thin screw rod are equipped with draw-in groove ring 55, and draw-in groove 56 and spout 57 have been seted up in proper order to draw-in groove ring 55 lateral surface from the bottom up, and draw-in groove 56 and spout 57 play limiting displacement to fixture block 53.

Wherein, the screw thread of clockwise is seted up to 3 lateral surfaces of thin screw rod and draw-in groove ring 55 inner wall, and the screw thread of anticlockwise is seted up to 2 lateral surfaces of thick screw rod and draw-in groove ring 52 inner wall, and 2 lateral surfaces of thick screw rod and the interior wall threaded connection of draw-in groove ring 55, thin screw rod 3 and draw-in groove ring 55 inner wall threaded connection.

Wherein, the upper end of the lower fixing ring 51 is rotatably connected with the lower end of the clamping block ring 52, the upper end of the clamping groove ring 55 is rotatably connected with the lower end of the upper fixing ring 54, the number of the clamping blocks 53 is two, the clamping blocks 53 are symmetrically distributed on the inner wall of the clamping block ring 52, and the two clamping blocks 53 have better fixing effect.

The sliding grooves 57 are arc-shaped, the number of the sliding grooves 57 is two, the entering groove 56 is communicated with the sliding grooves 57, and the sliding grooves 57 are internally provided with clockwise limiting teeth which can limit the fixture block 53 and prevent the fixture block 53 from sliding.

Wherein, the gasket 4 is a circular sheet with a round hole in the middle, a plurality of semicircular rubbers are arranged on the outer surface of the gasket 4, and the semicircular rubbers have better protection effect on the fixed piece.

The working principle is as follows: when the anti-vibration bolt is used, firstly, the gasket 4 is sleeved on the outer side surface of the thick screw rod 2, the thick screw rod 2 penetrates through the fixed part, the rotating button 6 is rotated to enable the fixed part to tightly abut against the gasket, then the lower fixing ring 51 and the clamping block ring are sleeved on the thick screw rod 2, the upper fixing ring 54 and the clamping groove ring 55 are sleeved on the thin screw rod 3, the clamping block 53 moves into the sliding groove 57 along the entering groove 56, the clamping block can be clamped by the limiting teeth through rotating the clamping groove ring 55, fastening can be completed, and the bolt is effectively prevented from loosening due to vibration.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a screw fastening structure, includes screwhead (1), its characterized in that, the side is equipped with thick screw pole (2) on screwhead (1), thick screw pole (2) upper end is equipped with thin screw pole (3), thick screw pole (2) surface cover is equipped with locking gasket (4) of moving, thick screw pole (2) surface cover is equipped with fastening component (5), screwhead (1) lower extreme is equipped with knob (6).

2. The screw fastening structure according to claim 1, wherein the fastening assembly (5) comprises a lower fixing ring (51) sleeved on the outer surface of the thick screw rod (2), a clamping block ring (52) is fixedly connected to the upper end of the lower fixing ring (51), a clamping block (53) is fixedly mounted on the inner wall of the clamping block ring (52), a clamping groove ring (55) is sleeved on the outer side surface of the thin screw rod (3), and an inlet groove (56) and a sliding groove (57) are sequentially formed in the outer side surface of the clamping groove ring (55) from bottom to top.

3. The screw fastening structure according to claim 2, wherein the outer side surface of the thin screw rod (3) and the inner wall of the clamping groove ring (55) are provided with clockwise threads, the outer side surface of the thick screw rod (2) and the inner wall of the clamping groove ring (52) are provided with counterclockwise threads, the outer side surface of the thick screw rod (2) and the inner wall of the clamping groove ring (52) are in threaded connection, and the thin screw rod (3) and the inner wall of the clamping groove ring (55) are in threaded connection.

4. The screw fastening structure according to claim 2, wherein the upper end of the lower fixing ring (51) is rotatably connected to the lower end of the fixture block ring (52), the upper end of the slot ring (55) is rotatably connected to the lower end of the upper fixing ring (54), the number of the fixture blocks (53) is two, and the fixture blocks (53) are symmetrically distributed on the inner wall of the fixture block ring (52).

5. A screw fastening structure according to claim 3, wherein the slide groove (57) is arc-shaped, the number of the slide grooves (57) is two, the inlet groove (56) is communicated with the slide groove (57), and the slide groove (57) is provided with a clockwise limit tooth therein.

6. The screw fastening structure according to claim 1, wherein the spacer (4) is in the shape of a circular disc with a circular hole in the middle, and a plurality of semicircular rubbers are arranged on the outer surface of the spacer (4).