CN213628378U

CN213628378U - Anti-drop and anti-loose coating fastener

Info

Publication number: CN213628378U
Application number: CN202022238581.6U
Authority: CN
Inventors: 周志才; 朱孝林; 钱建华
Original assignee: Changzhou Biyuan Vehicle Parts Co ltd
Current assignee: Changzhou Biyuan Vehicle Parts Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-07-06
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a resistant locking coating fastener that falls, including the bolt head, the overhead cross recess of having seted up of bolt, the upper end of bolt head is equipped with the screw pin, and the upper end of screw pin is equipped with the roof, and the lower extreme of bolt head is equipped with the non-screw section, and the outside of non-screw section is equipped with the protection part. The upper end of the fastener is provided with the screw pin and the top plate, so that the bolt can be conveniently and effectively positioned, and meanwhile, when the fastener is fixed, the bolt head cannot be in contact with the pressing plate in the clamping mechanism, so that the probability of damage to the bolt head is reduced, and the service life of the fastener is greatly prolonged; the screw thread section of the fastener adopts an inner layer, a copper core interlayer, an outer screw thread layer and an outer anticorrosive layer, so that the screw thread section can be fully protected, the strength of the screw thread section can be effectively improved, and the using effect of the fastener is greatly enhanced.

Description

Anti-drop and anti-loose coating fastener

Technical Field

The utility model belongs to the technical field of the fastener, specifically be a resistant locking fastener that coats that falls.

Background

Fastener fasteners, also known as standard parts on the market, are a generic term for a class of mechanical parts used when fastening two or more parts or components into one piece; it features that its varieties and specifications have different functions and very high standardization, serialization and universalization degrees. Fasteners are the most widely used mechanical base parts in great demand.

The protection effect of current fastener is relatively poor, produces very easily and drops and not hard up the condition to the location of fastener is very inconvenient, and the protection effect of fastener itself is relatively poor simultaneously, makes the life of fastener lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a resistant locking fastener that coats that falls to solve the strong problem of fastener protecting effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a resistant locking coating fastener that falls, includes the bolt head, the overhead cross recess of having seted up of bolt, the central point that the cross recess was seted up at the bolt head puts, the upper end of bolt head is equipped with the screw pin, and the screw pin is equipped with four and is the annular and lays, and the beading is in the upper end of bolt head, the upper end of screw pin is equipped with the roof, and the fixed welding of roof is on the screw pin, and screw pin and roof make things convenient for fixture to carry out the centre gripping, avoid causing the damage to the bolt head, the lower extreme of bolt head is equipped with the non-thread section, and the non-thread section is made with bolt head an organic whole, the outside of non-thread section is equipped with.

Preferably, be equipped with anti-skidding line on the guard portion, anti-skidding line is evenly laid at the surface of guard portion, the protective effect of effectual reinforcing guard portion.

Preferably, the lower end of the non-threaded section is provided with an annular protrusion, and the annular protrusion and the non-threaded section are integrally manufactured.

Preferably, the lower end of the annular protrusion is provided with a thread section, and the thread section is fixedly welded at the lower end of the annular protrusion.

Preferably, the outside coating of screw thread section has the adhesive layer, and the adhesive layer can be according to the surface of in service behavior coating in the screw thread section, and the adhesive layer is special engineering resin layer, can improve the locking performance of screw thread section through the adhesive layer.

Preferably, the lower end of the thread section is provided with a round angle, and the round angle is arranged on the surface of the lower end of the thread section.

Preferably, the screw thread section includes inlayer, copper core intermediate layer, external screw thread layer and outer anticorrosive coating, the surface of inlayer is located to the copper core intermediate layer, the interbedded surface of copper core is located to the external screw thread layer, the even coating of outer anticorrosive coating is on the external screw thread layer, and the interbedded texture of copper core is compared in inlayer and the soft some of external screw thread layer, makes the screw thread section become flexible bolt, and when the screw thread section received impact and vibration, its deflection is great, absorption impact and vibration energy effect that can be better to increase the intensity of screw thread section, improve the practicality of fastener.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the upper end of this fastener is equipped with swizzle and roof, conveniently carries out effectual location with the bolt, and the fastener is when fixed simultaneously, and the bolt head can not contact with the clamp plate among the fixture to reduce the probability of bolt head damage, the life of very big reinforcing fastener.

2. The screw thread section of the fastener adopts an inner layer, a copper core interlayer, an outer screw thread layer and an outer anticorrosive layer, so that the screw thread section can be fully protected, the strength of the screw thread section can be effectively improved, and the using effect of the fastener is greatly enhanced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the threaded segment of the present invention;

fig. 3 is a top view of the bolt head of the present invention.

In the figure: 1. a bolt head; 11. a cross groove; 12. a screw pin; 13. a top plate; 2. a non-threaded section; 21. a protective part; 22. anti-skid lines; 3. an annular projection; 4. a threaded segment; 41. an inner layer; 42. a copper core interlayer; 43. an outer threaded layer; 44. an outer corrosion resistant layer; 5. an adhesive layer; 6. and (4) rounding.

Detailed Description

Referring to fig. 1 and 3, a falling-resistant anti-loose coated fastener includes a bolt head 1, a cross groove 11 is formed in the bolt head 1, the cross groove 11 is formed in the center of the bolt head 1, a screw 12 is arranged at the upper end of the bolt head 1, four screw 12 are annularly arranged and directly welded to the upper end of the bolt head 1, a top plate 13 is arranged at the upper end of the screw 12, the top plate 13 is fixedly welded to the screw 12, the screw 12 and the top plate 13 facilitate clamping of a clamping mechanism, damage to the bolt head 1 is avoided, a non-threaded section 2 is arranged at the lower end of the bolt head 1, the non-threaded section 2 and the bolt head 1 are integrally formed, a protection section 21 is arranged on the outer side of the non-threaded section 2, and the protection section 21 can slide up and down on the outer surface of the non.

Referring to fig. 1, the protective portion 21 is provided with anti-slip stripes 22, and the anti-slip stripes 22 are uniformly distributed on the outer surface of the protective portion 21, so as to effectively enhance the protective effect of the protective portion 21.

Referring to fig. 1, the lower end of the non-threaded section 2 is provided with an annular protrusion 3, and the annular protrusion 3 is integrally formed with the non-threaded section 2.

Referring to fig. 1, a threaded section 4 is disposed at a lower end of the annular protrusion 3, and the threaded section 4 is fixedly welded to the lower end of the annular protrusion 3.

Referring to fig. 1, the outer side of the threaded section 4 is coated with an adhesive layer 5, the adhesive layer 5 may be coated on the outer surface of the threaded section 4 according to the use situation, the adhesive layer 5 is a special engineering resin layer, and the anti-loosening performance of the threaded section 4 may be improved by the adhesive layer 5.

Referring to fig. 1, the lower end of the threaded section 4 is provided with a rounded corner 6, and the rounded corner 6 is disposed on the lower end surface of the threaded section 4.

Referring to fig. 1 and 2, the threaded section 4 includes an inner layer 41, a copper core interlayer 42, an outer threaded layer 43 and an outer corrosion-resistant layer 44, the copper core interlayer 42 is disposed on an outer surface of the inner layer 41, the outer threaded layer 43 is disposed on an outer surface of the copper core interlayer 42, the outer corrosion-resistant layer 44 is uniformly coated on the outer threaded layer 43, the texture of the copper core interlayer 42 is softer than that of the inner layer 41 and the outer threaded layer 43, so that the threaded section 4 becomes a flexible bolt, when the threaded section 4 is impacted and vibrated, the deformation thereof is larger, and the impact and vibration energy can be better absorbed, thereby increasing the strength of the threaded section 4 and improving the practicability of the fastener.

The working principle of the scheme is as follows: when the anti-corrosion bolt is used, the screw pin 12 and the top plate 13 can be matched with a clamping mechanism in a fastener coating device to be beneficial to positioning of the bolt, the top plate 13 is positioned above the bolt head 1, so that when the fastener is fixed, the bolt head 1 cannot be contacted with a pressing plate in the clamping mechanism, the probability of damage to the bolt head 1 is reduced, the using effect of the fastener is effectively enhanced, the adhesive layer 5 is a special engineering resin layer, the anti-loosening performance of the threaded section 4 can be improved through the adhesive layer 5, the threaded section 4 is changed into a flexible bolt by matching the texture of the copper core interlayer 42 with the softness of the inner layer 41 and the outer thread layer 43, when the threaded section 4 is impacted and vibrated, the deformation quantity generated by the flexible bolt is larger, the impact and vibration energy absorption effect can be better, the strength of the threaded section 4 is increased, the practicability of the fastener is improved, and meanwhile, the outer anti-corrosion layer 44 has a, the outer thread layer 43 can be sufficiently protected.

Claims

1. A fall-resistant anti-loose coated fastener comprising a bolt head (1), characterized in that: the bolt head is characterized in that a cross groove (11) is formed in the bolt head (1), a screw pin (12) is arranged at the upper end of the bolt head (1), a top plate (13) is arranged at the upper end of the screw pin (12), a non-threaded section (2) is arranged at the lower end of the bolt head (1), and a protection part (21) is arranged on the outer side of the non-threaded section (2).

2. A drop and lock resistant coated fastener as defined in claim 1, wherein: the protective part (21) is provided with anti-skid grains (22).

3. A drop and lock resistant coated fastener as defined in claim 1, wherein: the lower end of the non-thread section (2) is provided with an annular bulge (3).

4. A drop and lock resistant coated fastener as defined in claim 3, wherein: the lower end of the annular bulge (3) is provided with a thread section (4).

5. A drop and lock resistant coated fastener as defined in claim 4, wherein: the outer side of the thread section (4) is coated with an adhesive layer (5).

6. A drop and lock resistant coated fastener as defined in claim 4, wherein: the lower end of the thread section (4) is provided with a fillet (6).

7. A drop and lock resistant coated fastener as defined in claim 4, wherein: the screw thread section (4) comprises an inner layer (41), a copper core interlayer (42), an outer screw thread layer (43) and an outer corrosion-resistant layer (44), the outer surface of the inner layer (41) is arranged on the copper core interlayer (42), the outer surface of the copper core interlayer (42) is arranged on the outer screw thread layer (43), and the outer corrosion-resistant layer (44) is uniformly coated on the outer screw thread layer (43).