CN202520724U - Expansion locking device - Google Patents
Expansion locking device Download PDFInfo
- Publication number
- CN202520724U CN202520724U CN2012202013712U CN201220201371U CN202520724U CN 202520724 U CN202520724 U CN 202520724U CN 2012202013712 U CN2012202013712 U CN 2012202013712U CN 201220201371 U CN201220201371 U CN 201220201371U CN 202520724 U CN202520724 U CN 202520724U
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- CN
- China
- Prior art keywords
- tensioner
- screw rod
- tensioner cover
- cover
- tensioning
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses an expansion locking device, which comprises a tensioning sleeve (1), an inner cone (2) and a threaded rod (3), wherein at least one first straight flute (1.1) is formed in the wall of the tensioning sleeve (1), and one end of the first straight flute (1.1) penetrates through the tensioning end of the tensioning sleeve (1); the inner cone (2) is limited in a circumferential direction and can axially slide in the tensioning sleeve (1); the threaded rod (3) is axially limited and is axially and rotatablely matched into the tensioning sleeve (1), and the inner cone (2) is spirally matched with the threaded rod (3); the small end of the inner cone (2) points to the tensioning end of the tensioning sleeve (1); and the inner wall of the tensioning end of the tensioning sleeve (1) is provided with a titled block (1.3) which can cause the internal diameter of a tensioning port to be gradually reduced. The expansion locking device is simple and practical, low in manufacture cost, and good in tensioning effect, and the borne strength is larger. The expansion locking device belongs to the technical field of locking equipment.
Description
Technical field
The utility model relates to a kind of locking device, especially relates to a kind of expansion locker that is applied to more piece alpin-stock, ski pole, walking cane and other more piece canes, bar.
Background technique
Alpin-stock is a kind of special support supplementary equipment, is different from usual walking stick.Alpin-stock generally is made up of two joints, three joints or more piece, can be according to the length of the required change alpin-stock of actual environment with suitable different crowd.Therefore design and aly be applicable to that the expansion locker of more piece alpin-stock, ski pole, walking cane and other more piece canes, bar is at present required.
Summary of the invention
The utility model technical problem to be solved is: a kind of expansion locker that tensioner connects adjacent pipe that is used for is provided.
The technological scheme that the utility model is taked is: a kind of expansion locker; Comprise tensioner cover, internal cones and screw rod; The tensioner jacket wall is provided with first straight trough that at least one 1 ends run through tensioner cover tensioner end; Described internal cones is circumferentially spacing and axially slidably in the tensioner cover, and the spacing and axial rotation of screw axial is engaged in the tensioner cover, and internal cones and screw rod revolve cooperation; The small end of internal cones points to tensioner cover tensioner end, and tensioner cover tensioner end inwall is provided with and makes the diminishing tilted block of tensioner mouth internal diameter.
Described internal cones is circumferentially spacing and be meant in the tensioner cover slidably that axially also be provided with second straight trough that two one ends run through tensioner cover positive stop end on the tensioner jacket wall, the sidewall of internal cones is provided with the spacing preiection of two card limits in corresponding second straight trough.
Screw axial is spacing and circumferentially be rotatably assorted and be meant that in tensioner cover tensioner cover positive stop end interior edge face is provided with a position limit cycle, and screw rod is provided with first baffle ring and second baffle ring, and position limit cycle places between first baffle ring and second baffle ring.
Establish in the described internal cones tapped hole one have an internal thread copper sheathing, copper sheathing and screw flight match.
The outer end of described screw rod is with a working of plastics.
The beneficial effect of the utility model is: the screw axial on the utility model expansion locker is spacing and circumferentially be rotatably assorted in tensioner cover, so screw rod can only rotate and can't move.Screw flight end and internal cones screw-thread fit, internal cones are circumferentially spacing and axially slidably in the tensioner cover, and therefore, drive is ordered about internal cones and advanced or retreat under the rotation of screw rod.When internal cones advanced, under the effect of the tilted block in tensioner cover tensioner end, internal cones can overlap the tensioner end with tensioner at leisure and rise greatly, realized that the tensioner of facing pipe mutually connects.
Description of drawings
Fig. 1 is the utility model explosive view.
Fig. 2 is the utility model tensioner end end view drawing.
Among the figure, 1, the tensioner cover, 1.1, first straight trough, 1.2, second straight trough, 1.3, tilted block, 1.4, position limit cycle, 2, internal cones, 2.1, spacing preiection, 3, screw rod, 3.1, first baffle ring, 3.2, second baffle ring, 4, working of plastics.
Embodiment
Below be the utility model preferred embodiment, but therefore do not limit the protection domain of the utility model.
With reference to Fig. 1, shown in Figure 2; A kind of expansion locker of the utility model; Comprise tensioner cover 1, internal cones 2 and screw rod 3, tensioner is overlapped 1 wall and is provided with at least one 1 ends and runs through first straight trough 1.1 that tensioner is overlapped 1 tensioner end, and described internal cones 2 is circumferentially spacing and axially slidably in tensioner cover 1; Screw rod 3 axial limitings and axial rotation are engaged in the tensioner cover 1; Internal cones 2 revolves cooperation with screw rod 3, and the small end of internal cones 2 points to tensioner and overlaps 1 tensioner end, and tensioner is overlapped 1 tensioner end inwall and is provided with and makes the diminishing tilted block 1.3 of tensioner mouth internal diameter.First straight trough 1.1 of the utility model is two, is to be symmetrically distributed in tensioner and to overlap on 1 wall.
Described internal cones 2 is circumferentially spacing and axially slidably in tensioner cover 1, be meant; Tensioner is overlapped and also is provided with two one ends on 1 wall and runs through second straight trough 1.2 that tensioner is overlapped 1 positive stop end, and the sidewall of internal cones 2 is provided with the spacing preiection 2.1 of two card limits in corresponding second straight trough 1.2.In conjunction with shown in Figure 1.Two spacing preiections, 2.1 card limits are placed internal cones 2 and are rotated in two second straight troughs 1.2 of tensioner cover 1 in the middle of using.In addition, two spacing preiections 2.1 have also played the leading role of internal cones 2.
Screw rod 3 axial limitings and circumferentially being rotatably assorted are meant that in tensioner cover 1 tensioner overlaps 1 positive stop end interior edge face and be provided with a position limit cycle 1.4, and screw rod 3 is provided with first baffle ring 3.1 and second baffle ring 3.2, and position limit cycle 1.4 places between first baffle ring 3.1 and second baffle ring 3.2.In conjunction with shown in Figure 1, so screw rod 3 just can't move axially, and can only circumferentially rotate.
Establish in described internal cones 2 tapped holes one have an internal thread copper sheathing, copper sheathing and screw rod 3 screw threads match.Improve wear-resisting property, prolong product working life.
The outer end of described screw rod 3 is with a working of plastics 4.Play anti-skidding effect, hand pinches working of plastics and drives screw rod 3 rotations.
The working principle of the utility model is: screw rod 3 axial limitings on the utility model expansion locker and circumferentially being rotatably assorted in tensioner cover 1, so screw rod 3 can only rotate and can't move.The threaded end of screw rod 3 and internal cones 2 screw-thread fit, internal cones 2 are circumferentially spacing and axially slidably in tensioner cover 1, and therefore, drive is ordered about internal cones 2 and advanced or retreat under the rotation of screw rod 3.When internal cones 2 advanced, under the effect of the tilted block in tensioner is overlapped 1 tensioner end, internal cones 2 can overlap 1 tensioner end with tensioner at leisure and rise greatly, realized that the tensioner of facing pipe mutually connects.
Claims (5)
1. expansion locker; It is characterized in that: comprise tensioner cover (1), internal cones (2) and screw rod (3); Tensioner cover (1) wall is provided with first straight trough (1.1) that at least one 1 ends run through tensioner cover (1) tensioner end; Described internal cones (2) is circumferentially spacing and axially slidably in tensioner cover (1), screw rod (3) axial limiting and axial rotation are engaged in the tensioner cover (1), and internal cones (2) and screw rod (3) revolve cooperation; The small end of internal cones (2) points to tensioner cover (1) tensioner end, and tensioner cover (1) tensioner end inwall is provided with and makes the diminishing tilted block of tensioner mouth internal diameter (1.3).
2. expansion locker according to claim 1; It is characterized in that: described internal cones (2) is circumferentially spacing and axially slidably in tensioner cover (1), be meant; Also be provided with second straight trough (1.2) that two one ends run through tensioner cover (1) positive stop end on tensioner cover (1) wall, the sidewall of internal cones (2) is provided with the spacing preiection (2.1) of two card limits in corresponding second straight trough (1.2).
3. expansion locker according to claim 1; It is characterized in that: screw rod (3) axial limiting and circumferentially be rotatably assorted and be meant that in tensioner cover (1) tensioner cover (1) positive stop end interior edge face is provided with a position limit cycle (1.4); Screw rod (3) is provided with first baffle ring (3.1) and second baffle ring (3.2), and position limit cycle (1.4) places between first baffle ring (3.1) and second baffle ring (3.2).
4. expansion locker according to claim 1 is characterized in that: establish in described internal cones (2) tapped hole one have an internal thread copper sheathing, copper sheathing and screw rod (3) screw thread matches.
5. expansion locker according to claim 1 is characterized in that: the outer end of described screw rod (3) is with a working of plastics (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202013712U CN202520724U (en) | 2012-05-08 | 2012-05-08 | Expansion locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202013712U CN202520724U (en) | 2012-05-08 | 2012-05-08 | Expansion locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520724U true CN202520724U (en) | 2012-11-07 |
Family
ID=47103676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202013712U Expired - Fee Related CN202520724U (en) | 2012-05-08 | 2012-05-08 | Expansion locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520724U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002860A (en) * | 2016-07-22 | 2016-10-12 | 唐山市长智农工具设计制造有限公司 | Strengthened assembly type hand tool |
| CN106763018A (en) * | 2016-11-23 | 2017-05-31 | 泰州华春金属制品有限公司 | A kind of portable fastening structure |
| CN107559277A (en) * | 2017-08-29 | 2018-01-09 | 刘路清 | A kind of attachment means for cross beam type shelf bearing bar |
| CN107939761A (en) * | 2017-11-24 | 2018-04-20 | 宁波文泽机电技术开发有限公司 | One kind is used for the pressure controlled locking device of hydraulic valve |
| CN108188592A (en) * | 2018-01-23 | 2018-06-22 | 安徽银立方金属科技有限公司 | A kind of optical-fiber laser cutting machine cutting head |
-
2012
- 2012-05-08 CN CN2012202013712U patent/CN202520724U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002860A (en) * | 2016-07-22 | 2016-10-12 | 唐山市长智农工具设计制造有限公司 | Strengthened assembly type hand tool |
| CN106002860B (en) * | 2016-07-22 | 2018-05-11 | 唐山市长智农工具设计制造有限公司 | Reinforced assembly type hand-held tool |
| CN106763018A (en) * | 2016-11-23 | 2017-05-31 | 泰州华春金属制品有限公司 | A kind of portable fastening structure |
| CN107559277A (en) * | 2017-08-29 | 2018-01-09 | 刘路清 | A kind of attachment means for cross beam type shelf bearing bar |
| CN107559277B (en) * | 2017-08-29 | 2019-12-03 | 浙江云洁仓储设备有限公司 | A kind of attachment device for cross beam type shelf bearing bar |
| CN107939761A (en) * | 2017-11-24 | 2018-04-20 | 宁波文泽机电技术开发有限公司 | One kind is used for the pressure controlled locking device of hydraulic valve |
| CN108188592A (en) * | 2018-01-23 | 2018-06-22 | 安徽银立方金属科技有限公司 | A kind of optical-fiber laser cutting machine cutting head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20180508 |