CN209705050U - Double thread clamping screw - Google Patents
Double thread clamping screw Download PDFInfo
- Publication number
- CN209705050U CN209705050U CN201822265586.0U CN201822265586U CN209705050U CN 209705050 U CN209705050 U CN 209705050U CN 201822265586 U CN201822265586 U CN 201822265586U CN 209705050 U CN209705050 U CN 209705050U
- Authority
- CN
- China
- Prior art keywords
- washer
- sleeve
- screw
- double thread
- elastic cushion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Clamps And Clips (AREA)
Abstract
The utility model provides a kind of double thread clamping screw, nut includes fastening part, clamping part and interconnecting piece, connecting portion is between fastening part and clamping part, elastic washer is enclosed on interconnecting piece, the outer movable sleeve of elastic washer is equipped with sleeve, it is provided with the first elastic cushion between sleeve and fastening part, is provided with internal screw thread on sleeve lining；It further includes the washer to match with screw rod and position-limited edge, and external screw thread is provided on washer lateral wall, and washer matching is provided with the second elastic cushion and third elastic cushion.This double thread clamping screw wraps up the screw connection structure between sleeve and washer by using elastic cushion, reduce influence of the vibration to the screw connection structure between sleeve and washer in subsequent use to the greatest extent, the time that the screw connection structure between sleeve and washer is got loose greatly is delayed, the time that nut fastening part is got loose also just greatly is delayed accordingly, to achieve the purpose that locking is locked, anti-loose.
Description
Technical field
The utility model relates to mechanized equipment fastener areas, in particular to a kind of double thread clamping screw.
Background technique
The anti-loose problem of bolt fastener is always to perplex a great problem of this field researcher.In order to solve this
One problem, researchers have developed the Anti-loose bolt of various structures, one of structure type are as follows: in cylindric spiral shell
Trimming is carried out on bar, and form a rectangular position-limited edge, then a locking cap that can be matched with the position-limited edge, locking cap are set
It cannot rotate on screw rod, slot on locking cap, nut is screwed in the notch of the locking cap, pass through nut side wall and notch side
Nut and the locking cap are combined together by clamp that wall matches, groove, to reach anti-loose purpose.But actually this kind
Structure existing defects, there is no locking functions for clamp, groove structure, can screw in, and can must also screw out, can not firmly by
Nut is combined together with locking cap, and with the influence of the various factors such as vibration, nut still can be loosened.
Utility model content
In view of the above technical problems, the utility model provides a kind of double thread clamping screw, the double thread clamping screw
Technical solution be achieved in that
The double thread clamping screw, including screw head, screw rod and nut, the screw rod side wall include at least one rectangle
Shape position-limited edge, the nut include fastening part, clamping part and interconnecting piece, and connecting portion is between fastening part and clamping part, connection
Elastic washer is enclosed in portion, the outer movable sleeve of elastic washer is equipped with sleeve, the first bullet is provided between the sleeve and fastening part
Property pad is provided with internal screw thread on sleeve lining；
The double thread clamping screw further includes the washer to match with screw rod and position-limited edge, is set on the washer lateral wall
It is equipped with the external screw thread to match with the internal screw thread on sleeve lining, the washer matching is provided with identical second elastic cushion of size
With third elastic cushion.
Further, central angle corresponding to the position-limited edge is no more than 90 degree.
Further, the clamping part section is noncircular cross section.
Further, the clamping part section is regular hexagon.
This double thread clamping screw when in use, is divided into two steps, and part to be tightened is passed through screw rod first and is offseted with screw head, then
Washer and the second matched elastic cushion and third elastic cushion are transferred on screw rod and offseted with part to be tightened, as long as will pad
Circle is folded between two elastic cushions, the second elastic cushion or third elastic cushion is first filled, then by nut fastening part
It is screwed outwardly on screw rod, until fastening part is by part to be tightened fastening, fastens work at this time and complete.Then by adjusting set
Position of the cylinder on interconnecting piece, sleeve is screwed on washer, and makes sleeve lower end beyond washer until sleeve and first
Elastic cushion is tight against anti-loose work is completed at this time.This double thread clamping screw working principle is different from existing Anti-loose bolt,
It does not form the screw thread between nut and screw rod and compresses, but by using elastic cushion by the screw thread between sleeve and washer
Connection structure wraps up, in practice it has proved that, vibration is the main reason that bolt fastener is got loose, of the present invention
This form reduces influence of the vibration to the screw connection structure between sleeve and washer in subsequent use to the greatest extent, this
The time that the screw connection structure between sleeve and washer is got loose greatly has been delayed, has also just greatly been delayed accordingly
The time that nut fastening part is got loose, to achieve the purpose that locking is locked, anti-loose.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.In
In attached drawing:
Fig. 1 is this double thread clamping screw structural schematic diagram；
Fig. 2 is this double thread clamping screw screw rod end view.
Description of symbols:
In figure: 1. screw heads, 2. screw rods, 3. fastening parts, 4. clamping parts, 5. interconnecting pieces, 6. sleeves, 7. first elastic cushions, 8.
Second elastic cushion, 9. third elastic cushions, 10. washers, 11. position-limited edges.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Double thread clamping screw described in the utility model, as shown in Figure 1, 2, including screw head 1, screw rod 2 and nut, the spiral shell
2 side wall of bar includes at least one oblong-shaped position-limited edge 11, and the nut includes fastening part 3, clamping part 4 and interconnecting piece 5, connection
Portion 5 is enclosed with elastic washer between fastening part 3 and clamping part 4 on interconnecting piece 5, the outer movable sleeve of elastic washer is equipped with sleeve
6, it is provided with the first elastic cushion 7 between the sleeve 6 and fastening part 3, is provided with internal screw thread on 6 inner wall of sleeve；
This double thread clamping screw further includes the washer 10 to match with screw rod 2 and position-limited edge 11,10 outside of washer
The external screw thread to match with the internal screw thread on 6 inner wall of sleeve is provided on wall, it is identical that the matching of washer 10 is provided with size
Second elastic cushion 8 and third elastic cushion 9.
This double thread clamping screw when in use, is divided into two steps, and part to be tightened is passed through screw rod 2 first and is offseted with screw head 1,
Washer 10 and the second matched elastic cushion 8 and third elastic cushion 9 are transferred on screw rod 2 again and offseted with part to be tightened,
As long as washer 10 is folded between two elastic cushions, the second elastic cushion 8 or third elastic cushion 9 are first filled, then
Nut fastening part 3 is screwed outwardly on screw rod 2, until fastening part 3 is by part to be tightened fastening, it is complete to fasten work at this time
At.Sleeve 6 is screwed on washer 10 by the then position by adjusting sleeve 6 on interconnecting piece 5, and makes 6 lower end of sleeve
Beyond washer 10 until sleeve 6 and the first elastic cushion 7 are tight against anti-loose work is completed at this time.It is each in this double thread clamping screw
The size of a component is not the claimed element of this patent, as long as meeting actual requirement, can reach above structure energy function
Property description defined by technical effect.
This double thread clamping screw working principle is different from existing Anti-loose bolt, not between nut and screw rod
Screw thread formed and compress, but the screw connection structure between sleeve 6 and washer 10 is wrapped up by using elastic cushion, it is real
Proof is trampled, vibration is the main reason that bolt fastener is got loose, and this form of the present invention is maximum
Reduce influence of the vibration to the screw connection structure between sleeve 6 and washer 10 in subsequent use, this has greatly delayed set
The time that screw connection structure between cylinder 6 and washer 10 is got loose, nut fastening part has also just greatly been delayed accordingly
The time got loose, to achieve the purpose that locking is locked, anti-loose.
In this double thread clamping screw, central angle corresponding to the position-limited edge 11 is no more than 90 degree, prevents thread segment too short,
Influence the fastness being threadedly coupled.
In this double thread clamping screw, 4 section of clamping part is noncircular cross section.
In this double thread clamping screw, 4 section of clamping part is regular hexagon.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (4)
1. a kind of double thread clamping screw, including screw head (1), screw rod (2) and nut, screw rod (2) side wall includes at least one
A oblong-shaped position-limited edge (11), it is characterised in that: the nut includes fastening part (3), clamping part (4) and interconnecting piece (5), is connected
Socket part (5) is located between fastening part (3) and clamping part (4), and elastic washer, the outer activity of elastic washer are enclosed on interconnecting piece (5)
It is arranged with sleeve (6), is provided with the first elastic cushion (7) between the sleeve (6) and fastening part (3), is arranged on sleeve (6) inner wall
There is internal screw thread；
Further include the washer (10) to match with screw rod (2) and position-limited edge (11), be provided on washer (10) lateral wall with
The external screw thread that internal screw thread on sleeve (6) inner wall matches, washer (10) matching are provided with identical second elasticity of size
Pad (8) and third elastic cushion (9).
2. double thread clamping screw according to claim 1, it is characterised in that: central angle corresponding to the position-limited edge (11)
No more than 90 degree.
3. double thread clamping screw according to claim 1, it is characterised in that: clamping part (4) section is non-circular
Section.
4. double thread clamping screw according to claim 3, it is characterised in that: clamping part (4) section is positive six sides
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822265586.0U CN209705050U (en) | 2018-12-31 | 2018-12-31 | Double thread clamping screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822265586.0U CN209705050U (en) | 2018-12-31 | 2018-12-31 | Double thread clamping screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209705050U true CN209705050U (en) | 2019-11-29 |
Family
ID=68637998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822265586.0U Expired - Fee Related CN209705050U (en) | 2018-12-31 | 2018-12-31 | Double thread clamping screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209705050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630528A (en) * | 2018-12-31 | 2019-04-16 | 天津市盛立达机械设备有限公司 | Elastic Anti-loose bolt |
-
2018
- 2018-12-31 CN CN201822265586.0U patent/CN209705050U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630528A (en) * | 2018-12-31 | 2019-04-16 | 天津市盛立达机械设备有限公司 | Elastic Anti-loose bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191129 Termination date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |