CN202900927U - Torque set screw - Google Patents
Torque set screw Download PDFInfo
- Publication number
- CN202900927U CN202900927U CN 201220582883 CN201220582883U CN202900927U CN 202900927 U CN202900927 U CN 202900927U CN 201220582883 CN201220582883 CN 201220582883 CN 201220582883 U CN201220582883 U CN 201220582883U CN 202900927 U CN202900927 U CN 202900927U
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- knob
- screw
- moment
- torsion
- screw rod
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Abstract
The utility model relates to a torque set screw and belongs to the field of mechanical connecting equipment. The torque set screw comprises a screw provided with external threads and a knob and is characterized in that a limit boss is disposed between the screw and the knob, one side of the limit boss is directly fixedly connected with the screw, a knob connecting block is disposed on the other side of the limit boss, the limit boss is fixedly connected with the knob through the knob connecting block, and a twisting-off slot is arranged between the knob connecting block and the knob. By the simple screw structure, fixation stability is achieved. By the twisting-off slot, when a to-be-fixed object is fixed, the twisting-off slot can be twisted off automatically when certain torsion is applied to the twisting-off slot, so that stability of a torsion screw can be guaranteed. In addition, due to the simple structure, manufacturing cost is saved, and mounting procedures are simplified.
Description
Technical field
The utility model relates to a kind of moment of torsion fastening screw, belongs to the mechanical connection apparatus field, particularly relates to a kind of linkage structure simple, the moment of torsion fastening screw that stable connection is effective.
Background technique
The die mould shingle nail of steel-structure factory building adopts the moment of torsion screw to fix usually.According to the difference of metope purlin pattern, screw is divided into two kinds on grooved moment of torsion screw and angle type moment of torsion screw, and grooved moment of torsion screw is used for the channel purlin position, and angle type moment of torsion screw is used for the angle purlin position.Grooved moment of torsion screw is comprised of grooved screw rod, seal washer, concavo-convex packing ring and nut, and angle type moment of torsion screw is comprised of angle type screw rod, seal washer, concavo-convex packing ring and nut.Wherein, grooved screw rod, angle type screw rod, concavo-convex packing ring and nut all adopt Q235 steel processing and fabricating to form, and all do zinc-plated processing for improving the decay resistance surface.Because steel-structure factory building metope purlin multi-size, there is inevitably again deviation in the structure installation process, cause on-the-spot moment of torsion screw specification, the size of using all to be not quite similar, therefore, grooved screw rod and angle type screw rod-as all be after zinc-plated finishing dealing with, bend by the concrete structure size again, this course of working of plating first palintrope can be to the zinc coat injury, and in installation, using process, the moment of torsion screw directly contacts with the steel structure purlin, zinc coat at both contacting point moment of torsion screws is also easily damaged, thereby loses antiseptic effect.This all can cause the moment of torsion screw to be corroded, even causes becoming rusty disconnected and make wall and consequence that plate becomes flexible, comes off.In order to overcome the defective of the easy corrosion of common iron, a kind of moment of torsion screw that adopts stainless steel is arranged now, although stainless corrosion resistance increases than galvanized steel, but stainless price is several times as much as the latter, and in the hydrochloric acid medium environment, the effect of stainless steel opposing hcl corrosion is unsatisfactory, still exist the fracture of screw rod easy-to-rust, working life short etc. problem.
The model utility content
The purpose of this utility model is in order to solve the existing defective of moment of torsion fastening screw in the prior art, to provide a kind of cost low, simple in structure, easy to connect, the moment of torsion fastening screw that stability maintenance is good.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of moment of torsion fastening screw, comprise screw rod and knob, be provided with external connection screw on the described screw rod, it is characterized in that, one positive stop lug boss is arranged between described screw rod and the knob, and positive stop lug boss one side is fixedly connected with directly with screw rod, opposite side is provided with the knob contiguous block, positive stop lug boss is fixedly connected with knob by the knob contiguous block, is provided with one between described knob contiguous block and the knob and twists off groove.
In above-mentioned a kind of moment of torsion fastening screw, it is characterized in that: the longitudinal size of described knob and the ratio that twists off the vertically the shortest size of groove are 1.3-1.7, and described knob transverse dimension and the ratio that twists off the groove transverse dimension are 2.7-3.5.
In above-mentioned a kind of moment of torsion fastening screw, it is characterized in that: the longitudinal cross-section of described positive stop lug boss is for circular, and lateral cross section is that both sides are the class rectangle of camber line.
In above-mentioned a kind of moment of torsion fastening screw, it is characterized in that: be provided with groove on the lateral sidewalls of described knob.
In above-mentioned a kind of moment of torsion fastening screw, it is characterized in that: the ratio of the transverse dimension of described screw rod and the transverse dimension of positive stop lug boss is 7-7.8.
In above-mentioned a kind of moment of torsion fastening screw, it is characterized in that: the material of described screw rod, knob and positive stop lug boss is middle carbon alloy.
The beneficial effect that the utlity model has: the utility model is by its simple bolt structure, reached stablizing fixedly the time, simultaneously, by twisting off the groove design, can make fixed block after fixing, will twist off automatically when groove is subject to certain torsion when twisting off, so just can guarantee the stablizing effect of torsion screw, and its simple structure has also been saved manufacture cost, has simplified installation procedure.
Description of drawings
Fig. 1 is the structural representation of a kind of moment of torsion fastening of the utility model screw;
Fig. 2 is the left view of a kind of moment of torsion fastening of the utility model screw;
Fig. 3 is the sectional view of A-A among the utility model Fig. 1;
The accompanying drawing note: the 100-screw rod, the 200-knob, the 300-positive stop lug boss, 400-twists off groove, 500-knob contiguous block, 600-external connection screw, 700-cross section.
Embodiment
Further understand and understanding for making structure characteristic of the present utility model and the effect reached had, cooperate detailed explanation in order to preferred embodiment and accompanying drawing, be described as follows: referring to Fig. 1 to Fig. 3, a kind of moment of torsion fastening screw, comprise screw rod 100 and knob 200, be provided with external connection screw 600 on the described screw rod 100, one positive stop lug boss 300 is arranged between described screw rod 100 and the knob 200, and positive stop lug boss 300 1 sides directly are fixedly connected with screw rod 100, opposite side is provided with knob contiguous block 500, positive stop lug boss 300 is fixedly connected with knob 200 by knob contiguous block 500, is provided with one between described knob contiguous block 500 and the knob 200 and twists off groove 400.
In above-mentioned a kind of moment of torsion fastening screw, guarantee that in order to make twisting off groove 400 can twist off smoothly, the longitudinal size of described knob 200 and the ratio that twists off the vertically the shortest size of groove 400 are 1.3-1.7, and the transverse dimension of described knob 200 and the ratio that twists off groove 400 transverse dimensions are 2.7-3.5.
With reference to figure 3, in above-mentioned a kind of moment of torsion fastening screw, attractive in appearance for the limit effect that guarantees positive stop lug boss and its outward appearance, the longitudinal cross-section 700 of described positive stop lug boss 300 be circle, and its lateral cross section is that both sides are the class rectangle of camber line.
In above-mentioned, attractive in appearance for the rotation that makes things convenient for knob and outward appearance is provided with groove on the lateral sidewalls of described knob 200, increases the friction of knob 200 and knob connector by groove.
With reference to figure 1, above-mentioned in, guaranteeing under its stable prerequisite and saving cost, the ratio of the transverse dimension of the transverse dimension of described screw rod 100 and positive stop lug boss 300 is 7-7.8.
In above-mentioned a kind of moment of torsion fastening screw, in order to guarantee its rigidity and stablizing effect, the material of described screw rod 100, knob 200 and positive stop lug boss 300 is middle carbon alloy.
In sum, it only is preferred embodiment of the present utility model, be not to limit the scope that the utility model is implemented, all equalizations of doing according to the described shape of the utility model claim scope, structure, feature and spirit change and modify, and all should be included in the claim scope of the present utility model.
Claims (6)
1. moment of torsion fastening screw, comprise screw rod and knob, be provided with external connection screw on the described screw rod, it is characterized in that, one positive stop lug boss is arranged between described screw rod and the knob, and positive stop lug boss one side is fixedly connected with directly with screw rod, opposite side is provided with the knob contiguous block, positive stop lug boss is fixedly connected with knob by the knob contiguous block, is provided with one between described knob contiguous block and the knob and twists off groove.
2. a kind of moment of torsion fastening screw according to claim 1 is characterized in that, the longitudinal size of described knob and the ratio that twists off the vertically the shortest size of groove are 1.3-1.7, and described knob transverse dimension and the ratio that twists off the groove transverse dimension are 2.7-3.5.
3. a kind of moment of torsion fastening screw according to claim 2 is characterized in that, the longitudinal cross-section of described positive stop lug boss is circular, and lateral cross section is that both sides are the class rectangle of camber line.
4. a kind of moment of torsion fastening screw according to claim 3 is characterized in that, is provided with groove on the lateral sidewalls of described knob.
5. the described a kind of moment of torsion fastening screw of any one in 4 according to claim 1 is characterized in that.The ratio of the transverse dimension of described screw rod and the transverse dimension of positive stop lug boss is 7-7.8.
6. a kind of moment of torsion fastening screw according to claim 5 is characterized in that, the material of described screw rod, knob and positive stop lug boss is middle carbon alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220582883 CN202900927U (en) | 2012-11-07 | 2012-11-07 | Torque set screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220582883 CN202900927U (en) | 2012-11-07 | 2012-11-07 | Torque set screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900927U true CN202900927U (en) | 2013-04-24 |
Family
ID=48121602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220582883 Expired - Lifetime CN202900927U (en) | 2012-11-07 | 2012-11-07 | Torque set screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006043A (en) * | 2018-01-13 | 2018-05-08 | 四川百平机电设备有限公司 | A kind of bolt and determine torque nut |
-
2012
- 2012-11-07 CN CN 201220582883 patent/CN202900927U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006043A (en) * | 2018-01-13 | 2018-05-08 | 四川百平机电设备有限公司 | A kind of bolt and determine torque nut |
| CN108006043B (en) * | 2018-01-13 | 2023-12-22 | 四川百平机电设备有限公司 | Constant torque fastener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 317200, Zhejiang province Taizhou Tiantai County Baihe Town Village Patentee after: ZHEJIANG HUANTAI PRECISION MACHINERY CO.,LTD. Address before: 317201, Zhejiang City, Taizhou province Tiantai County Baihe Town under the village of Yi house Patentee before: ZHEJIANG HUANTAI FASTENER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |