CN105533983A - Pull rod of case - Google Patents
Pull rod of case Download PDFInfo
- Publication number
- CN105533983A CN105533983A CN201610028398.9A CN201610028398A CN105533983A CN 105533983 A CN105533983 A CN 105533983A CN 201610028398 A CN201610028398 A CN 201610028398A CN 105533983 A CN105533983 A CN 105533983A
- Authority
- CN
- China
- Prior art keywords
- locking
- block
- latch segment
- face
- bar
- 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.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C13/00—Details; Accessories
- A45C13/26—Special adaptations of handles
Landscapes
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The invention provides a pull rod of a case. The pull rod comprises a fixed rod, a telescopic pull rod and a handle, wherein a control button is arranged on the handle; the telescopic pull rod is internally provided with a transmission connecting rod and a locking mechanism; the control button is used for driving the transmission connecting rod to control the locking mechanism to unlock or lock; the fixed rod is provided with a limiting mechanism; the locking mechanism is matched with the limiting mechanism; a mounting groove is formed in the fixed rod; the limiting mechanism is a bar-shaped locking strip; the locking strip is mounted inside the mounting groove; the locking mechanism comprises a locking block and a transmission block; the locking block is matched with the limiting mechanism; the transmission block drives the locking block to be dissociated from or clamped into the limiting mechanism; a notch is formed in the transmission block; one end of the locking block is hinged to the telescopic rod; a convex block is arranged at the other end of the locking block; a propping block and a push block are arranged on the notch; the convex block is provided with a propping surface and a push surface; the propping block is matched with the propping surface so as to prevent the blocking block from being dissociated from and cooperating with the limiting mechanism; the push block is matched with the push surface so as to drive the convex block to enter the notch to cooperate with the notch, and drive the blocking block to be dissociated from the locking block and cooperate with the limiting mechanism.
Description
Technical field
The present invention relates to a kind of case drawbar.
Background technology
Existing case drawbar comprises fixed bar, telescopic lever and handle, handle is provided with control button, kinematic link and retaining mechanism is provided with in telescopic lever, control button drives kinematic link to control retaining mechanism and opens or locking, fixed bar is provided with position-limit mechanism, retaining mechanism coordinates with position-limit mechanism, pressing control button during operation drives retaining mechanism to open, now can elongate or push away short telescopic lever and arrive the position needed, and traditional retaining mechanism is drive latch to insert pin-and-hole by spring to realize locking mostly, spring provides latch to be in the restoring force of lockup state, but this reliability of structure is relatively low, due to the direction of the restoring force of spring and the direction of motion moving to lock position of latch consistent, just there is the insecure phenomenon of locking, namely latch be in lock position stressed time, pin-and-hole easily transmits the active force of Compress Spring to latch, thus cause latch under the state not pressing control button, overcome spring-return power throwing off voluntarily and the coordinating of pin-and-hole, the structure of some case drawbar can overcome this defect, the defect using inconvenience is there is as increased locking mechanism, position-limit mechanism also has the mode adopting and install tooth bar on fixed bar, but the structure of the most belt-like tooth bar of existing tooth bar, not only there is complete bottom but also have the teeth portion overall structure protruded on bottom thicker, the space of telescopic lever can be taken when being enclosed within fixed bar, need fixed bar is done thick or telescopic lever is run business into particular one, fixed bar waste of material or telescopic lever insufficient strength can be caused, tooth bar mounting groove simultaneously on fixed bar adopts square groove or curved slot arrangement mostly, size between thicker tooth bar and mounting groove needs tooth bar to be slightly less than mounting groove, could when mounted more for convenience, thus cause tooth bar insecure on fixed bar, also to be easily in a latched condition drawn out with telescopic lever, do not reach spacing effect.
Summary of the invention
The object of the invention is: in order to solve the problem, provide a kind of structure simple, control case drawbar that is reliable, easy to use, that be connected firmly.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of case drawbar, comprise fixed bar, telescopic lever and handle, handle is provided with control button, kinematic link and retaining mechanism is provided with in telescopic lever, control button drives kinematic link to control retaining mechanism and opens or locking, fixed bar is provided with position-limit mechanism, retaining mechanism coordinates with position-limit mechanism, described fixed bar is provided with mounting groove, described position-limit mechanism is bar shaped locking bar, described locking bar is arranged in mounting groove, mounting groove comprises two hypotenuses, a minor face and a long limit, described long limit is provided with opening and communicates with fixed bar inside, described locking bar comprises two inclined tab, a lateral plate and locking import, described two inclined tab are opened in " eight " font towards locking importer to oblique, two inclined tab match with two hypotenuses respectively, described lateral plate matches with minor face, described locking import communicates with opening, the lateral plate of locking bar is provided with locking mouth, locking bar, described retaining mechanism comprises latch segment and drive block, described latch segment is provided with locking double wedge, described locking double wedge matches with locking mouth, described drive block drives the locking double wedge of latch segment to depart from or snaps in the locking mouth of position-limit mechanism, drive block is provided with recess, latch segment one end is hinged on telescopic lever, the other end is provided with projection, described recess is provided with and abuts block and pushing block, described projection is provided with bearing surface and promotion face, described abutting block matches with bearing surface, the disengaging of restriction latch segment coordinates with position-limit mechanism, described pushing block matches with promotion face, projection is driven to enter recess and mating recesses, and drive latch segment to depart from and the coordinating of position-limit mechanism.
The beneficial effect of technique scheme is: the latch segment of retaining mechanism is when locking position-limit mechanism, namely when locking double wedge snaps in locking mouth, the bearing surface of latch segment is abutted block and props up and cannot throw off position-limit mechanism backward, and when needs are opened, press control button, the drive block vertical direction of retaining mechanism is driven to move unlatching by kinematic link, the pushing block on drive block recess is made to be connected on the promotion face of latch segment projection, and drive latch segment to rotate around the one end be hinged on telescopic lever, latch segment is finally made to depart from backward and the coordinating of position-limit mechanism, namely lock double wedge to exit from locking mouth, remove lockup state, compare traditional dependence spring directly provides locking restoring force mode to latch and retaining mechanism, because the moving direction of unlatching and the direction of unblock are not in same direction, only have and could unlock when drive block initiatively moves, but can not the passive unblock to the reaction force of latch segment of limited mechanism, the mode that abutting block of the present invention props up bearing surface is more reliable, and tooth bar adopts three laminated structures that the gap between telescopic lever and fixed bar can be made comparatively to waste trifle space-efficient, i.e. tooth bar laminating mounting groove inwall, telescopic lever enters locking import from the opening part of mounting groove and tooth bar is fitted, the thickness that locking mouth can reduce tooth bar is further set on the lateral plate of tooth bar simultaneously, do not need complete bottom and protrude the teeth portion on bottom, but directly breach is set on lateral plate, teeth portion is used as with the connecting portion between adjacent two breach, two inclined tab of opening in " eight " font coordinate with the hypotenuse of mounting groove can be more existing more tight, the size of tooth bar can be fitted completely mounting groove even can slightly larger than the size of mounting groove, two inclined tab can be bent some to locking import during installation and reinstall mounting groove, it is same convenient to install, and after tooth bar loads mounting groove completely, two inclined tab elasticity are opened and are closely cooperated with two of mounting groove hypotenuses, to reach, firmly object is installed.
Further, described retaining mechanism also comprises returning spring, described returning spring provides drive block to be returned to and abuts the restoring force that block and bearing surface abut against mated condition, the projection of described latch segment is also provided with reply face, described reply face coordinates with the block that abuts of drive block, there is provided latch segment to be returned to snap in the restoring force of the lockup state of position-limit mechanism, when unclamping control button, the restoring force of returning spring is relied on to drive drive block vertical direction to move to lockup state, in this process, abut block by the reply face of latch segment, latch segment is rotated back into lock position around pin joint and coordinate with position-limit mechanism, finally make abutting block be connected on bearing surface and keep locking, this simple and reasonable reliable again.
Further, described promotion face is inclined-plane or arcwall face, and described reply face is inclined-plane or arcwall face, adopts the structure of inclined-plane or arcwall face that promotion face can be made to be pushed when block promotes and reply face and is abutted when block promotes more smooth and easy.
Further, mounting groove and locking bar are isosceles trapezoid along the cross section of vertical fixed bar length direction, the structure of isosceles trapezoid can increase by two the installation fastnesses of acute angle place to tooth bar in the installation fastness, particularly isosceles trapezoid of tooth bar further and play significant role.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of case drawbar provided by the invention.
Fig. 2 is the structural representation of retaining mechanism in Fig. 1 and position-limit mechanism.
Fig. 3 is the decomposing state structural representation of Fig. 2.
Fig. 4 is the structural representation that retaining mechanism is in lockup state.
Fig. 5 is the structural representation that retaining mechanism is in the state that will open.
Fig. 6 is the structural representation that retaining mechanism is in opening.
Fig. 7 is the decomposing state structural representation of tooth bar in Fig. 1 and fixed bar.
Fig. 8 is the mated condition structural representation of tooth bar in Fig. 1 and fixed bar.
Detailed description of the invention
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Fig. 8, for specific embodiments of the invention, a kind of case drawbar, comprise fixed bar 1, telescopic lever 2 and handle 3, handle 3 is provided with control button 4, kinematic link 5 and retaining mechanism 6 is provided with in telescopic lever 2, control button 4 drives kinematic link 5 to control retaining mechanism 6 and opens or locking, fixed bar 1 is provided with position-limit mechanism 7, retaining mechanism 6 coordinates with position-limit mechanism 7, described fixed bar 1 is provided with mounting groove 21, described position-limit mechanism 7 is bar shaped locking bar 18, described locking bar 18 is arranged in mounting groove 21, mounting groove 21 comprises two hypotenuse 21-1, a minor face 21-2 and long limit 21-3, described long limit 21-3 is provided with opening 22 and communicates with fixed bar 1 inside, described locking bar 18 comprises two inclined tab 18-1, a lateral plate 18-2 and locking import 18-3, described two inclined tab 18-1 are oblique towards locking import 18-3 direction to be opened in " eight " font, two inclined tab 18-1 match with two hypotenuse 21-1 respectively, described lateral plate 18-2 matches with minor face 21-2, described locking import 18-3 communicates with opening 22, the lateral plate 18-2 of locking bar 18 is provided with locking mouth 19, locking bar 18, described retaining mechanism 6 comprises latch segment 8 and drive block 9, described latch segment 8 is provided with locking double wedge 20, described locking double wedge 20 matches with locking mouth 19, described drive block 9 drives the locking double wedge 20 of latch segment 8 to depart from or snaps in the locking mouth 19 of position-limit mechanism 7, drive block 9 is provided with recess 10, latch segment 8 one end is hinged on telescopic lever 2, the other end is provided with projection 11, described recess 10 is provided with and abuts block 12 and pushing block 13, described projection 11 is provided with bearing surface 14 and promotion face 15, described abutting block 12 matches with bearing surface 14, the disengaging of restriction latch segment 8 coordinates with position-limit mechanism 7, described pushing block 13 matches with promotion face 15, drive projection 11 to enter recess 10 to coordinate with recess 10, and drive latch segment 8 to depart from and the coordinating of position-limit mechanism 7, described retaining mechanism 6 also comprises returning spring 16, described returning spring 16 provides drive block 9 to be returned to abut block 12 and bearing surface 14 to abut against the restoring force of mated condition, the projection 11 of described latch segment 8 is also provided with reply face 17, described reply face 17 coordinates with the block 12 that abuts of drive block 9, latch segment 8 is provided to be returned to the restoring force of the lockup state snapping in position-limit mechanism 7, described promotion face 15 is inclined-plane or arcwall face, described reply face 17 is inclined-plane or arcwall face, described mounting groove 21 and locking bar 18 are isosceles trapezoid along the cross section of vertical fixed bar 1 length.
Claims (4)
1. a case drawbar, comprise fixed bar (1), telescopic lever (2) and handle (3), handle (3) is provided with control button (4), kinematic link (5) and retaining mechanism (6) is provided with in telescopic lever (2), control button (4) drives kinematic link (5) to control retaining mechanism (6) and opens or locking, fixed bar (1) is provided with position-limit mechanism (7), retaining mechanism (6) coordinates with position-limit mechanism (7), it is characterized in that: described fixed bar (1) is provided with mounting groove (21), described position-limit mechanism (7) is bar shaped locking bar (18), described locking bar (18) is arranged in mounting groove (21), mounting groove (21) comprises two hypotenuses (21-1), a minor face (21-2) and a long limit (21-3), described long limit (21-3) is provided with opening (22) and communicates with fixed bar (1) inside, described locking bar (18) comprises two inclined tab (18-1), a lateral plate (18-2) and locking import (18-3), described two inclined tab (18-1) are oblique towards locking import (18-3) direction opens in " eight " font, two inclined tab (18-1) are matched with two hypotenuses (21-1) respectively, described lateral plate (18-2) matches with minor face (21-2), described locking import (18-3) communicates with opening (22), the lateral plate (18-2) of locking bar (18) is provided with locking mouth (19), locking bar (18), described retaining mechanism (6) comprises latch segment (8) and drive block (9), described latch segment (8) is provided with locking double wedge (20), described locking double wedge (20) is matched with locking mouth (19), described drive block (9) drives the locking double wedge (20) of latch segment (8) depart from or snap in the locking mouth (19) of position-limit mechanism (7), drive block (9) is provided with recess (10), latch segment (8) one end is hinged on telescopic lever (2), the other end is provided with projection (11), described recess (10) is provided with and abuts block (12) and pushing block (13), described projection (11) is provided with bearing surface (14) and the face of promotion (15), described abutting block (12) is matched with bearing surface (14), restriction latch segment (8) disengaging coordinates with position-limit mechanism (7), described pushing block (13) matches with promotion face (15), drive projection (11) to enter recess (10) to coordinate with recess (10), and drive latch segment (8) to depart from and the coordinating of position-limit mechanism (7).
2. a kind of case drawbar according to claim 1, it is characterized in that: described retaining mechanism (6) also comprises returning spring (16), described returning spring (16) provides drive block (9) to be returned to abut block (12) and abuts against the restoring force of mated condition with bearing surface (14), the projection (11) of described latch segment (8) is also provided with reply face (17), described reply face (17) coordinates with the block (12) that abuts of drive block (9), latch segment (8) is provided to be returned to the restoring force of the lockup state snapping in position-limit mechanism (7).
3. a kind of case drawbar according to claim 2, is characterized in that: described promotion face (15) are inclined-plane or arcwall face, and described reply face (17) are inclined-plane or arcwall face.
4. a kind of case drawbar according to claim 1, is characterized in that: described mounting groove (21) and locking bar (18) are isosceles trapezoid along the cross section of vertical fixed bar (1) length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610028398.9A CN105533983B (en) | 2016-01-15 | 2016-01-15 | A kind of case drawbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610028398.9A CN105533983B (en) | 2016-01-15 | 2016-01-15 | A kind of case drawbar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105533983A true CN105533983A (en) | 2016-05-04 |
| CN105533983B CN105533983B (en) | 2017-09-08 |
Family
ID=55813970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610028398.9A Active CN105533983B (en) | 2016-01-15 | 2016-01-15 | A kind of case drawbar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105533983B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108783799A (en) * | 2018-06-08 | 2018-11-13 | 平湖市雄达箱包有限公司 | It is a kind of can arbitrary adjustment length case drawbar |
| CN110454429A (en) * | 2019-09-06 | 2019-11-15 | 格力电器（中山）小家电制造有限公司 | Motor shaft fastening structure, fan and air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2426297Y (en) * | 2000-06-13 | 2001-04-11 | 乔工科技股份有限公司 | Multisection locking mechanism for handle of trunk |
| CN2507300Y (en) * | 2001-11-02 | 2002-08-28 | 王金生 | Multi-section locking mechanism of improved handle of trunk |
| US20090119881A1 (en) * | 2007-11-14 | 2009-05-14 | Ching-Ming Liu | Pull Handle Assembly Having a Safety Protection Function to Prevent a User's Fingers from being Clipped |
| CN204091254U (en) * | 2014-10-14 | 2015-01-14 | 郑东招 | A kind of pull bar on case and bag |
-
2016
- 2016-01-15 CN CN201610028398.9A patent/CN105533983B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2426297Y (en) * | 2000-06-13 | 2001-04-11 | 乔工科技股份有限公司 | Multisection locking mechanism for handle of trunk |
| CN2507300Y (en) * | 2001-11-02 | 2002-08-28 | 王金生 | Multi-section locking mechanism of improved handle of trunk |
| US20090119881A1 (en) * | 2007-11-14 | 2009-05-14 | Ching-Ming Liu | Pull Handle Assembly Having a Safety Protection Function to Prevent a User's Fingers from being Clipped |
| CN204091254U (en) * | 2014-10-14 | 2015-01-14 | 郑东招 | A kind of pull bar on case and bag |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108783799A (en) * | 2018-06-08 | 2018-11-13 | 平湖市雄达箱包有限公司 | It is a kind of can arbitrary adjustment length case drawbar |
| CN110454429A (en) * | 2019-09-06 | 2019-11-15 | 格力电器（中山）小家电制造有限公司 | Motor shaft fastening structure, fan and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105533983B (en) | 2017-09-08 |
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