CN205244082U - Plastics baotou fastening bolt - Google Patents
Plastics baotou fastening bolt Download PDFInfo
- Publication number
- CN205244082U CN205244082U CN201521063826.9U CN201521063826U CN205244082U CN 205244082 U CN205244082 U CN 205244082U CN 201521063826 U CN201521063826 U CN 201521063826U CN 205244082 U CN205244082 U CN 205244082U
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- screw rod
- packet header
- baotou
- diameter
- bolt
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Abstract
The utility model discloses a plastics baotou fastening bolt, be in including screw rod body and setting the baotou at screw rod body top, the screw rod body includes coaxial co -linear screw rod head, location platform, four directions platform and threaded rod, baotou is back taper and parcel screw rod head with the location platform. The utility model has the advantages that the top is equipped with the back taper baotou that wear -resistant material made, cooperation four directions platform structure, and the bolt the stress area of having given oneself airs, effectively disperse material's impact force protects it not receive big stroke, increase of service life, in addition, the wear -resisting structure in the top of increasing can effectually avoid the bolt to take place when reinforcing installation intensity, to have reduced workman's the installation degree of difficulty with the phenomenon of changeing when the installation.
Description
Technical field
The utility model relates to a kind of securing member, specifically a kind of fastening bolt connecting for sheet material.
Background technology
At present, the factor at grain conveying chute, chute or baffle plate position due to erection weight, generally adopts ordinary carbon steelMake, thickness is generally at 2-3mm. Be subjected to the continuous quick washing wearing and tearing of the Bulk Grains such as corn, paddy rice, wheat for a long timeUnder effect, cause soon that steel are worn out, situation such as mill leakages etc., cause grain outflow, cause and produce interruption, and necessarilyIn degree, there is the problem of foodstuff waste. So generally all can use the plastic wear-resisting sheet material of 6-12mm as liner, withSlow down plant maintenance frequency and intensity.
At present, on market, fixed plastics wearable plate and steel plate generally adopt dormant bolt or plain bolt to fix. But,These two kinds of bolt major parts are mild steel, and bolt head is all exposed in sheet material outside, is subject in process of production grainFood continues after impact wear, and bolt head wearing and tearing diminish, and cause fastening bolt entirety to come off, and cause wearable plate because nothingMethod is fixed and is come off. Gently cause conveying equipment putty, heavy in next process equipment of sheet material landing, cause large of equipmentLong-pending damage, consequence is hardly imaginable. Therefore be badly in need of wanting the one can wear-resistant, impact-resistant fastening bolt.
Utility model content
Utility model object: for the problems referred to above, the purpose of this utility model is to provide a kind of delicate structure, can be wear-resistingDamage, impact-resistant fastening bolt.
Technical scheme: a kind of plastic covering head fastening bolt, comprises screw rod body and be arranged on described screw rod bodies topPacket header, described screw rod body comprises screw head, positioning table, Sifangtai and the threaded rod of coaxial conllinear; Described packet headerBe back taper and wrap up described screw head and described positioning table.
Further, for increasing the wearability of bolt, packet header is formed by wear-resistant plastic injection moulding or cast; Screw rod body be byRound steel upsetting is beaten or punch forming. In the wear-resistant plastic in packet header, add antistatic additive, therefore also there is electrostatic-proof function, canThe potential safety hazard of bringing with prevention static.
As preferably, the diameter D1 in packet header is 1:0.3-0.45 with the ratio of the diameter d 1 of threaded rod; The diameter D1 in packet headerWith the ratio of the diameter d 2 of positioning table be 1:0.45-0.73; The diameter D1 in packet header with the ratio of the diameter d 3 of screw head is1:0.73-0.9, i.e. D1:d1:d2:d3=1:(0.3-0.45): (0.45-0.73): (0.73-0.9).
In the utility model, adopt wear-resistant plastic to make the head of packet header parcel bolt, larger bolt head structure, increasesLifting surface area while adding bolt installation, more firmly connects and buries sheet material and steel plate. And, adopt positioning table and fourThe double step structure of side's platform, can effectively fall fastening force dispersion to metal step, thereby stop plastic packets headExtruding force point when being subject to sheet material and bolted causes situation about coming off.
Beneficial effect: compared with prior art, the utility model has the advantages that top is provided with the back taper that high-abrasive material is madePacket header, coordinates Sifangtai structure, the bolt entirety of having given oneself airs lifting surface area, and effectively the impulsive force of dispersed material, protects itBe not subject to large stroke, increase the service life; In addition, the top abrasion-proof structure of increasing can effectively avoid bolt installingThe phenomenon of Shi Fasheng transfer, in reinforcing installation strength, has reduced workman's installation difficulty.
Brief description of the drawings
Fig. 1 is the utility model front view;
Fig. 2 is the right view of figure.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment only for sayingBright the utility model and be not used in restriction scope of the present utility model, after having read the utility model, art technologyPersonnel all fall within the application's claims limited range to the amendment of the various equivalent form of values of the present utility model.
As shown in Figure 1, Figure 2, a kind of plastic covering head fastening bolt, comprises bolt body 10 and packet header 20, and bolt originallyBody 10 is made up of screw head 11, positioning table 12, Sifangtai 13 and the threaded rod 14 of coaxial conllinear successively. BoltBody 10 is beaten or punch forming by mould upsetting by the round steel (wire rod) of certain diameter, one end formation screw head 11,Positioning table 12, Sifangtai 13, the other end forms threaded rod 14 by thread rolling or rolled thread again, then by product surface and commonThe heat treatment that bolt is identical. Packet header 20 is back taper, by the wear-resistant plastic (polyurethane or nylon) that has added antistatic additiveHead by cast or the form heat fixation of injection moulding at bolt body 10, parcel screw head 11, positioning table 12.
In the structure of bolt, the diameter D1 in packet header 20 is 1:0.3-0.45 with the ratio of the diameter d 1 of threaded rod 14;The diameter D1 in packet header 20 is 1:0.45-0.73 with the ratio of the diameter d 2 of positioning table 12; Diameter D1 and the spiral shell in packet header 20The ratio of the diameter d 3 of club head 11 is 1:0.73-0.9, i.e. D1:d1:d2:d3=1:(0.3-0.45): (0.45-0.73):(0.73-0.9)。
The axial overall height H in packet header 20 is 1:0.38-0.5 with the ratio of its axial cylindrical height B. Packet header 20 axiallyCylinder height B is 1:0.95-0.98 with the ratio of the axial total height A of screw head 11 and positioning table 12, itself and locationThe ratio of the axial height C size of platform 12 is 1:0.45-0.6, with the ratio of the height h size of Sifangtai 13 is1:0.55-0.7, i.e. B:A:C:h=1:(0.95-0.98): (0.45-0.6): (0.55-0.7). Sifangtai 13Height h is 1:0.9-0.95 with the ratio of the axial height C of positioning table 12.
Claims (3)
1. a plastic covering head fastening bolt, is characterized in that: comprise screw rod body (10) and be arranged on described spiral shellThe packet header (20) at bar body (10) top, described screw rod body (10) comprise coaxial conllinear screw head (11),Positioning table (12), Sifangtai (13) and threaded rod (14); Described packet header (20) is back taper and wraps up described spiral shellClub head (11) and described positioning table (12).
2. a kind of plastic covering head fastening bolt according to claim 1, is characterized in that: described packet header (20)The packet header forming for wear-resistant plastic injection moulding or cast; Described screw rod body (10) is beaten or stamping forming screw rod for round steel upsetting.
3. a kind of plastic covering head fastening bolt according to claim 1, is characterized in that: described packet header (20)Diameter D1 and the ratio of the diameter d 1 of described threaded rod (14) be 1:0.3-0.45; The diameter in described packet header (20)The ratio of the diameter d 2 of D1 and described positioning table (12) is 1:0.45-0.73; Diameter D1 and the spiral shell in described packet header (20)The ratio of the diameter d 3 of club head (11) is 1:0.73-0.9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521063826.9U CN205244082U (en) | 2015-12-17 | 2015-12-17 | Plastics baotou fastening bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521063826.9U CN205244082U (en) | 2015-12-17 | 2015-12-17 | Plastics baotou fastening bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244082U true CN205244082U (en) | 2016-05-18 |
Family
ID=55943167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521063826.9U Active CN205244082U (en) | 2015-12-17 | 2015-12-17 | Plastics baotou fastening bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205244082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081809A (en) * | 2020-09-04 | 2020-12-15 | 浙江润锦汽车科技有限公司 | Transmission separation shifting fork supporting bolt with POE (polyolefin elastomer) ball head part and preparation method thereof |
-
2015
- 2015-12-17 CN CN201521063826.9U patent/CN205244082U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081809A (en) * | 2020-09-04 | 2020-12-15 | 浙江润锦汽车科技有限公司 | Transmission separation shifting fork supporting bolt with POE (polyolefin elastomer) ball head part and preparation method thereof |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |