CN203770330U - Self-locking telescopic rod - Google Patents
Self-locking telescopic rod Download PDFInfo
- Publication number
- CN203770330U CN203770330U CN201420000250.0U CN201420000250U CN203770330U CN 203770330 U CN203770330 U CN 203770330U CN 201420000250 U CN201420000250 U CN 201420000250U CN 203770330 U CN203770330 U CN 203770330U
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- plate
- hole
- expansion plate
- self
- flexible rod
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Abstract
The utility model discloses a self-locking telescopic rod, which comprises a sleeve, a telescopic plate and a resetting plate, wherein the sleeve is a rectangular pipe fitting; a strip-type hole and a plurality of hook teeth for hooking a hanging rod are formed in the sleeve; a hanging plate limiting frame is arranged on the telescopic plate; a hanging plate is arranged in the hanging plate limiting frame; one end of the hanging plate is hinged to the telescopic plate, and the hanging rod is arranged at the other end of the hanging plate; an elastic part is also arranged between the hanging plate and the telescopic plate; the resetting plate is an irregularly-shaped plate, and is arranged between the hanging plate and the strip-type hole; an L-like hole is formed in the resetting plate; the hanging rod is inserted into the L-like hole; the resetting plate is in sliding fit with the sleeve; the L-like hole is divided into two areas, i.e. a hanging rod movement hole and a resetting strip-type hole respectively; the resetting strip-type hole is overlapped with the strip-type hole. The self-locking telescopic rod is simple in structure and high in telescopic performance, and can be applied to a plurality of fields such as height-adjustable seats, height-adjustable fitness equipment and telescopic ladders as a part.
Description
Technical field
The utility model relates to a kind of expansion device.
Background technique
Existing flexible rod generally includes fixed sleeving and sliding bar, different according to the structural type of the different sliding bars of purposes and fixed cover.Conventionally, in one end of sliding bar and fixed sleeving, be slidably connected, sliding bar utilizes other device to lock after moving to certain position.In prior art, common means of fixation is by bolton, or outside fixed sleeving sheathed adapter sleeve.Motion bar being carried out to when fastening, need to keep sliding bar not slide, and with the fastening sliding bar of fastening piece.In the time of flexible rod horizontal positioned, can keep easily sliding bar transfixion, but in the time that flexible rod is vertically installed, conventionally need two people to coordinate or use the auxiliary fastening work that just can complete sliding bar of other instruments.
Lifting bar is the one in flexible rod, and existing lifting rod structure complexity, the manufacture cost that possesses auto-lock function is high, or simple in structure, but load-bearing is less.
Summary of the invention
Given this, the utility model object be to provide a kind of have simple in structure, with the flexible rod of auto-lock function.
For solving above technical problem, the technological scheme that the utility model provides is, a kind of self-locking flexible rod is provided, and comprises sleeve pipe, expansion plate and restoring board;
Sleeve pipe: be rectangular pipe fittings, on at least one broadside face of sleeve pipe, be provided with the briar tooth of strip hole and multiple hook pegs, described strip hole is along the length direction setting of sleeve pipe, described briar tooth is arranged on a long limit of strip hole continuously, and be positioned at the middle part on this limit, the direction that the crown of briar tooth extends towards expansion plate;
One end that described expansion plate is positioned at sleeve pipe is provided with link plate bearing stop, in this link plate bearing stop, link plate is installed, this link plate and expansion plate are at grade, one end and the expansion plate of link plate are hinged, the other end of link plate is provided with peg, peg, perpendicular to link plate, is also provided with elastic member between link plate and expansion plate, the force direction of elastic member is approximately perpendicular to the length direction of expansion plate;
Restoring board: be sketch plate, be arranged between link plate and strip hole, on this restoring board, be provided with a L like shape hole, peg interts in this L like shape hole, this restoring board and sleeve pipe are slidably matched, this L like shape hole is divided into two regions, is respectively peg movable span and return cylindrical void, and return cylindrical void and strip hole are overlapping.
Further, on described expansion plate, be provided with along its length raised line.
Further, one end that described expansion plate is positioned at sleeve pipe is provided with tail and sticks up.
Further, one end that described expansion plate is positioned at outside sleeve pipe is provided with connecting plate.
Further, be provided with the first attachment hole on described sleeve pipe, be provided with the second attachment hole on described connecting plate, the first attachment hole and the second attachment hole lay respectively at the two ends of flexible rod.
Preferably, described link plate bearing stop is rectangle frame, it is positioned on a side of expansion plate extending direction and is provided with and is fixedly connected with hook, described link plate is set square triangle, one jiao of this set square triangle is fillet, the opposite side of this fillet is provided with flexible connection hook, described in be fixedly connected with hook and be flexibly connected hook rotary type hooking and be connected.
Further, a side of described restoring board is provided with balance strip, and this balance strip one end is fixedly connected with a side of restoring board, and this balance strip is parallel to the length direction of expansion plate.
Preferably, the outer side surface of described balance strip is cambered surface.
Preferably, the back of tooth of described briar tooth is cambered surface.
Preferably, described elastic member is stage clip.
Compared with prior art, a technological scheme tool in technique scheme has the following advantages:
1, the utility model is simple in structure, possesses good telescopicing performance, in expansion plate elongation process, peg starts mobile from initial point, in strip hole, slide, now peg is in peg movable span, when peg reaches the hook place of briar tooth, fall in hook in the effect of elastic member, realize auto-lock function.Peg can not bounce back after falling into hook.Peg is passed the other end of strip hole, and now to dock with return hole be a billet hole to strip hole, when peg return, transit directly to return hole from strip hole, expansion plate is in retraction process, and peg can not drop in hook in return hole, thereby can directly get back to initial point.
2, the utility model structural stability, has good bearing power.
3, the utility model level is installed, and applied range also can be vertically installed.
4, the utility model, as component, may be used on various fields, as height-adjustable seat, height-adjustable fitness equipments (horizontal bar, parallel bars), extension ladder etc.
Brief description of the drawings
Fig. 1 is the front elevation of the utility model one preferred embodiment.
Fig. 2 is the local sectional view that disconnects of Fig. 1.
Fig. 3 is the rear view of the utility model one preferred embodiment.
Fig. 4 is the local sectional view that disconnects of Fig. 3.
Fig. 5 is the side view of expansion plate in the utility model one preferred embodiment.
Fig. 6 is the stereogram of expansion plate in the utility model one preferred embodiment.
Fig. 7 is the stereogram of the snap close in the utility model one preferred embodiment.
Fig. 8 is the front view of the return plate in the utility model one preferred embodiment.
Fig. 9 is the stereogram of the return plate in the utility model one preferred embodiment.
Drawing reference numeral explanation: 1 sleeve pipe, 11 strip holes, 12 briar tooths, 13 first attachment holes, 2 expansion plates, 21 link plate bearing stops, 211 are fixedly connected with hook, 212 stage clip the first tie points, 22 connecting plates, 221 second attachment holes, 23 raised lines, 24 tails stick up, 3 link plates, 31 pegs, 32 are flexibly connected hook, 33 stage clip the second tie points, 4 restoring boards, 41 peg movable spans, 42 return cylindrical voids, 43 balance strips, 5 elastic members.
Embodiment
Describe below in conjunction with accompanying drawing and a specific embodiment.
Referring to Fig. 1 to Fig. 9.The described self-locking flexible rod of the present embodiment, comprises sleeve pipe 1, expansion plate 2 and restoring board 4, and link plate 3 is installed on expansion plate 2.Sleeve pipe 1, expansion plate 2 and link plate 3 available metal materials are made, and restoring board 4 can be finished with plastic.Certainly,, according to different purposes, can manufacture these parts by different materials.
Sleeve pipe 1 is rectangular pipe fittings, is processed by a block of metal plate.This rectangular sleeve comprises two broadside faces and two narrow sides, and centre is rectangular through-hole.On two broadside faces of sleeve pipe 1, be provided with the briar tooth 12 of strip hole 11 and multiple hook pegs.This strip hole 11 is along the length direction setting of sleeve pipe, and described briar tooth 12 is arranged on a long limit of strip hole 11 continuously, and is positioned at the middle part on this limit.The tip of briar tooth 12 is positioned at strip hole 11 1 sides, and the base portion of briar tooth 12 is away from strip hole 11.The direction that the crown of briar tooth 12 extends towards expansion plate 2.The present embodiment has provided a kind of preferable shape of briar tooth 12, and the back of tooth of briar tooth is arc-shaped curved surface, and hook is semicircle hook, and last hook seamlessly transits to a rear briar tooth back of tooth linearity, make peg 31 from last hook to more smooth and easy in the moving process of a hook.The width of strip hole 11 is slightly larger than the diameter of peg 31, ensures that on the one hand peg 31 can smooth and easy slip in strip hole, is that peg can not rock on the other hand.For ease of the flexible rod in the present embodiment is installed in other equipment, be provided with the first attachment hole 13 in an end of sleeve pipe 1.
Expansion plate 2 is a plate, is slidably matched with the rectangular through-hole of sleeve pipe 1.The width of expansion plate is suitable with the width of rectangular through-hole.One end of expansion plate 2 is positioned at the rectangular through-hole of sleeve pipe 1 all the time, and the other end is all the time outside sleeve pipe 1.
One end that expansion plate 2 is positioned at sleeve pipe is provided with link plate bearing stop 21, and link plate bearing stop 21 is rectangle frame, and it is positioned on a side of expansion plate 2 extending directions and is provided with and is fixedly connected with hook 211.On expansion plate 2, be provided with along its length raised line 23, this raised line is positioned on expansion plate 2 center lines.Expansion plate 2 is suitable with the height of rectangular through-hole with the total thickness of raised line 23.Such design can only be slided expansion plate 2 in rectangular through-hole, can not shake.The end, one end that expansion plate 2 is positioned at sleeve pipe 1 is provided with tail and sticks up 24, and this tail sticks up 24 and is positioned on the same face of expansion plate 2 with raised line 23, and tail to stick up the height of 24 perks suitable with the thickness of raised line 23.The structure that the present embodiment provides a kind of tail to stick up, this structure is similar to dovetail, namely, sticks up the dual-side that is arranged on expansion plate 2 at tail.Stick up by design tail, further increased the stability of expansion plate 2 in rectangular through-hole.
One end that expansion plate 2 is positioned at outside sleeve pipe 1 is provided with connecting plate 22.This connecting plate and expansion plate 2 not at grade, but with a broadside face of sleeve pipe 1 in same plane, such design can not slide in rectangular through-hole expansion plate completely.On connecting plate 22, be provided with the second attachment hole 221, for expansion plate 2 is fixed to other equipment.The second attachment hole 221 and the first attachment hole 13 are positioned at the two ends of flexible rod.
Link plate 3 is installed in link plate bearing stop 21, and this link plate 3 is set square triangle, and one jiao of this set square triangle is fillet, and the opposite side of this fillet is provided with and is flexibly connected hook 32, described in be fixedly connected with hook 211 and be connected with flexible connection hook 32 rotary type hookings.The design of fillet set square triangle is can in link plate bearing stop 21, rotate around being fixedly connected with hook 211 more easily for link plate 3.Link plate 3 is actually a kind of hinged mode with the Placement of expansion plate 2, and the Placement structure providing in the present embodiment is simpler, more convenient and practical.The other end of link plate 3 is provided with peg 31, and peg 31 is perpendicular to link plate 3, and this peg, the two sides of stretching out link plate 3, and the length of peg 31 equals the thickness of sleeve pipe 1.
Between link plate 3 and expansion plate 2, elastic member 5 is also installed, the force direction of elastic member 5 is approximately perpendicular to the length direction of expansion plate.This elastic member can be stage clip, and stage clip the first tie point 212 on link plate bearing stop sidewall is fixed in stage clip one end, and the other end is fixed on stage clip the second tie point 33 on link plate.The position that stage clip is installed, at the offside of briar tooth 12, is convenient to peg to be pressed in hook.
Restoring board 4 is sketch plate, is arranged between link plate 3 and strip hole 11, and its thickness is consistent with the height of raised line 23, and restoring board 4 and raised line 23 are positioned at the same side of expansion plate.On restoring board 4, be provided with a L like shape hole, peg 31 interts in this L like shape hole, and L like shape hole refers to that this hole global approximation is in L shaped, but according to restoring board 4 structure functions, can do beautifying and improving in some details.For example, the corner in hole is set to fillet.This L like shape hole is peg movable span 41 and return cylindrical void 42 according to function distinguishing, and return cylindrical void 42 is overlapping with strip hole 11, and the width of return cylindrical void 42 equates with the width of strip hole 11.The width of peg movable span 41 is not less than the width sum of width and the hook of strip hole 11, and namely, peg enters after hook, and peg movable span 41 can not have any impact to peg.
One side of restoring board 4 is provided with balance strip 43, this balance strip one end is fixedly connected with a side of restoring board 4, such design makes balance strip possess certain elasticity, can apply a pressure to the narrow side of rectangular through-hole, while making restoring board 4 not be subject to External Force Acting in rectangular through-hole, holding position is motionless.This balance strip is along the length direction setting of expansion plate 2.The outer side surface of balance strip 43 is cambered surface.Restoring board 4 reciprocatingly slides in process in rectangular through-hole, and balance strip 43 plays position regulation effect.
For ease of more clearly understanding use of the present utility model, describe as an example of Fig. 1 example, strip hole 11 be the initial point of peg 31 bottom, upwards pull expansion plate 2, flexible rod extends, and when peg 31 reaches first hook, moves right and enter hook under the effect of stage clip, under the Action of Gravity Field of expansion plate 2 and link plate 3, peg 31 is seated on first briar tooth.The crown of briar tooth is towards expansion plate 2 prolonging directions, the namely top of flexible rod in Fig. 1, and therefore, peg 31 can landing from briar tooth, and under the pressure-acting of stage clip, peg 31 is more stably located on this briar tooth.Continue upwards to pull expansion plate 2, peg slides at arc-shaped gear back, and stage clip is constantly compressed simultaneously, if now expansion plate moves down, peg 31 can directly be got back on first hook under the effect of stage clip, and can not get back to the initial point of peg 31.Peg 31 continues to move upward and can enter second hook, the like.Until peg arrives the top of strip hole 11, in the time that peg 31 arrives strip hole 11 top, the return cylindrical void 42 of restoring board docks with strip hole 11, and expansion plate 2 moves downward, and restoring board 4 keeps static under the effect of balance strip.Expansion plate 2 continues to move downward, and peg 31 enters return cylindrical void 42, until peg reaches return cylindrical void 42 bottoms, under the promotion of peg 31, restoring board 4 moves downward.Peg 31 moves downward in process, and the right side wall of return cylindrical void 42 is given the support force of 31 1 balance stage clip pressure of peg all the time, and peg 31 is not pressed in hook by stage clip, and so, peg 31 can be got back to initial point.
The present embodiment provides a kind of usage mode of self-locking flexible rod; be specially, the supporting leg by the utility model self-locking flexible rod as school chair, can arrange telescopic tube outward at flexible rod as required; flexible rod is protected, prevented that foreign matter from entering in flexible rod.
Below be only preferred implementation of the present utility model, it should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a self-locking flexible rod, is characterized in that, comprises sleeve pipe (1), expansion plate (2) and restoring board (4);
Sleeve pipe (1): be rectangular pipe fittings, on at least one broadside face of sleeve pipe (1), be provided with the briar tooth (12) of strip hole (11) and multiple hook pegs, described strip hole (11) is along the length direction setting of sleeve pipe, described briar tooth (12) is arranged on a long limit of strip hole (11) continuously, and be positioned at the middle part on this limit, the direction that the crown of briar tooth (12) extends towards expansion plate (2);
One end that described expansion plate (2) is positioned at sleeve pipe is provided with link plate bearing stop (21), link plate (3) is installed in this link plate bearing stop, this link plate (3) and expansion plate (2) are at grade, one end of link plate (3) and expansion plate (2) are hinged, the other end of link plate (3) is provided with peg (31), peg (31) is perpendicular to link plate (3), between link plate (3) and expansion plate (2), elastic member (5) is also installed, the force direction of elastic member (5) is approximately perpendicular to the length direction of expansion plate,
Restoring board (4): be sketch plate, be arranged between link plate (3) and strip hole (11), on this restoring board, be provided with a L like shape hole, peg (31) interts in this L like shape hole, this restoring board (4) is slidably matched with sleeve pipe (1), this L like shape hole is divided into two regions, be respectively peg movable span (41) and return cylindrical void (42), return cylindrical void (42) is overlapping with strip hole (11).
2. self-locking flexible rod according to claim 1, is characterized in that, is provided with along its length raised line (23) on described expansion plate (2).
3. self-locking flexible rod according to claim 1, is characterized in that, one end that described expansion plate (2) is positioned at sleeve pipe (1) is provided with tail and sticks up (24).
4. self-locking flexible rod according to claim 1, is characterized in that, described expansion plate (2) is positioned at the outer one end of sleeve pipe (1) and is provided with connecting plate (22).
5. self-locking flexible rod according to claim 4, it is characterized in that, on described sleeve pipe (1), be provided with the first attachment hole (13), on described connecting plate (22), be provided with the second attachment hole (221), the first attachment hole (13) and the second attachment hole (221) lay respectively at the two ends of flexible rod.
6. self-locking flexible rod according to claim 1, it is characterized in that, described link plate bearing stop (21) is rectangle frame, it is positioned on a side of expansion plate (2) extending direction and is provided with and is fixedly connected with hook (211), described link plate (3) is set square triangle, one jiao of this set square triangle is fillet, the opposite side of this fillet is provided with and is flexibly connected hook (32), described in be fixedly connected with hook (211) and be connected with flexible connection hook (32) rotary type hooking.
7. self-locking flexible rod according to claim 1, it is characterized in that, one side of described restoring board (4) is provided with balance strip (43), this balance strip one end is fixedly connected with a side of restoring board (4), and this balance strip is parallel to the length direction of expansion plate (2).
8. self-locking flexible rod according to claim 7, is characterized in that, the outer side surface of described balance strip (43) is cambered surface.
9. self-locking flexible rod according to claim 1, is characterized in that, the back of tooth of described briar tooth (12) is cambered surface.
10. self-locking flexible rod according to claim 1, is characterized in that, described elastic member (5) is stage clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420000250.0U CN203770330U (en) | 2014-01-02 | 2014-01-02 | Self-locking telescopic rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420000250.0U CN203770330U (en) | 2014-01-02 | 2014-01-02 | Self-locking telescopic rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770330U true CN203770330U (en) | 2014-08-13 |
Family
ID=51287525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420000250.0U Expired - Fee Related CN203770330U (en) | 2014-01-02 | 2014-01-02 | Self-locking telescopic rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770330U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371071A (en) * | 2014-08-26 | 2016-03-02 | 昆山泓杰电子股份有限公司 | Stand column telescopic structure of support for land stand television |
| CN106285172A (en) * | 2015-05-18 | 2017-01-04 | 岳池县丽城环保科技有限公司 | Telescopic contracted-pole section header is from connecing card |
| CN106579864A (en) * | 2017-01-20 | 2017-04-26 | 宁波市望春姚氏床垫机械有限公司 | Spring arrangement method and spring arrangement device |
| CN106594020A (en) * | 2016-12-30 | 2017-04-26 | 苏州沃诺斯精密机械有限公司 | Telescopic handle |
| CN107503559A (en) * | 2015-12-13 | 2017-12-22 | 青岛智享专利技术开发有限公司 | Security power line bar |
| CN107951174A (en) * | 2017-11-10 | 2018-04-24 | 宁波工程学院 | A kind of Multifunctional height adjusting table |
| CN109534190A (en) * | 2018-11-23 | 2019-03-29 | 中联重科股份有限公司 | Cantilever crane and crane |
| CN110236800A (en) * | 2019-04-08 | 2019-09-17 | 谢敏 | A kind of type transport pushing cart easy to use for gynemetrics |
| CN110680135A (en) * | 2019-10-16 | 2020-01-14 | 盐城工学院 | Plane work display device |
| CN111478389A (en) * | 2020-04-16 | 2020-07-31 | 西安新衡科测控技术有限责任公司 | Charging energy storage system and charging pile equipment |
-
2014
- 2014-01-02 CN CN201420000250.0U patent/CN203770330U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371071A (en) * | 2014-08-26 | 2016-03-02 | 昆山泓杰电子股份有限公司 | Stand column telescopic structure of support for land stand television |
| CN106285172A (en) * | 2015-05-18 | 2017-01-04 | 岳池县丽城环保科技有限公司 | Telescopic contracted-pole section header is from connecing card |
| CN107503559A (en) * | 2015-12-13 | 2017-12-22 | 青岛智享专利技术开发有限公司 | Security power line bar |
| CN107503559B (en) * | 2015-12-13 | 2019-04-19 | 浙江坤邦机械有限公司 | Security power line bar |
| CN106594020A (en) * | 2016-12-30 | 2017-04-26 | 苏州沃诺斯精密机械有限公司 | Telescopic handle |
| CN106579864A (en) * | 2017-01-20 | 2017-04-26 | 宁波市望春姚氏床垫机械有限公司 | Spring arrangement method and spring arrangement device |
| CN107951174A (en) * | 2017-11-10 | 2018-04-24 | 宁波工程学院 | A kind of Multifunctional height adjusting table |
| CN107951174B (en) * | 2017-11-10 | 2020-12-18 | 宁波工程学院 | Multifunctional lifting table |
| CN109534190A (en) * | 2018-11-23 | 2019-03-29 | 中联重科股份有限公司 | Cantilever crane and crane |
| CN110236800A (en) * | 2019-04-08 | 2019-09-17 | 谢敏 | A kind of type transport pushing cart easy to use for gynemetrics |
| CN110680135A (en) * | 2019-10-16 | 2020-01-14 | 盐城工学院 | Plane work display device |
| CN111478389A (en) * | 2020-04-16 | 2020-07-31 | 西安新衡科测控技术有限责任公司 | Charging energy storage system and charging pile equipment |
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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 |
Granted publication date: 20140813 Termination date: 20160102 |
|
| EXPY | Termination of patent right or utility model |