CN110934404A - Self-locking type pull rod and pull rod box - Google Patents
Self-locking type pull rod and pull rod box Download PDFInfo
- Publication number
- CN110934404A CN110934404A CN201911083221.9A CN201911083221A CN110934404A CN 110934404 A CN110934404 A CN 110934404A CN 201911083221 A CN201911083221 A CN 201911083221A CN 110934404 A CN110934404 A CN 110934404A
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- locking
- outer tube
- buckle
- inner tube
- hole
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C13/00—Details; Accessories
- A45C13/26—Special adaptations of handles
- A45C13/262—Special adaptations of handles for wheeled luggage
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- Buckles (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
The invention relates to a self-locking pull rod and a draw-bar box. The utility model provides a from locking-type pull rod, includes that outer tube, cover are located inner tube and rotation in the outer tube are installed the ending of inner tube bottom is received and is detained, the side of outer tube be equipped with a plurality ofly with end receive to detain the outer tube that the position is corresponding and end to receive and detain the lockhole, work as end receive to detain when being located outer tube end receipts knot lockhole department, through the change of the different angles of pull rod, make end receive detain utilize self gravity to rotate and buckle in the outer tube end receives and detains in the lockhole, or follow the outer tube ends to receive and detains and release in the lockhole. The self-locking of the pull rod is completed through the matching of the stop buckle and the outer pipe and the inner pipe, a plurality of parts such as a button, a spring, a sliding block, a pressing rod and a pressing foot of the traditional pull rod are not needed, the structure is simple, the weight of the pull rod is reduced, the manufacturing cost is reduced, the production process is simplified, the appearance overall design feeling of the pull rod is enhanced, and the use by a user is facilitated.
Description
The present application claims priority from chinese patent application No. 201910563281.4 filed on 26/6/2019.
Technical Field
The invention relates to the technical field of bags and suitcases, in particular to a self-locking draw bar and a draw bar box.
Background
The pull rod mechanism of present draw-bar box is the combination of interior outer tube, by the slider of the button control lower part at top, utilizes the spring from popping out the hole on the pipe wall with the slider, blocks the outer tube, presses the button again, and the slider shrink, and the outer tube can freely the pull slip, and whole draw-bar structure spare part is various, and structure and production technology are complicated.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the self-locking draw bar and the draw bar box have simple structures, do not need various parts such as buttons, springs, sliders and the like of the traditional draw bar, reduce the manufacturing cost and simplify the production process.
The technical solution of the invention is as follows: the invention provides a self-locking pull rod which comprises an outer tube, an inner tube sleeved in the outer tube and a stop buckle rotatably installed at the bottom end of the inner tube, wherein a plurality of outer tube stop buckle locking holes corresponding to the stop buckle position are formed in the side surface of the outer tube, and when the stop buckle is positioned at the outer tube stop buckle locking hole, the stop buckle is rotated by utilizing the self gravity and is buckled in the outer tube stop buckle locking hole or is released from the outer tube stop buckle locking hole through the change of different angles of the pull rod.
In the self-locking pull rod, the upper end of the retraction-stopping buckle is provided with a through hole, and the retraction-stopping buckle is arranged at the bottom of the inner pipe through a fixing piece or a pin penetrating through the through hole.
In the self-locking pull rod, the fixing piece comprises buckling parts on two sides and a convex point in the middle, a structural part mounting hole is formed in the side wall of the inner pipe, the buckling parts are clamped on the outer wall of the inner pipe, and the convex point penetrates through the structural part mounting hole and the through hole so as to fix the shrinkage-stopping buckle on the inner pipe.
In the self-locking pull rod, the pull rod also comprises a structural part, and the structural part comprises a structural part main body positioned at the lower part and a connecting part positioned at the upper part; connecting portion fixed mounting in the bottom of inner tube, the structure main part is hollow structure, with the outer tube ends to receive the homonymy of detaining the lockhole and opens there is the position of ending, end to receive detain through the installation axle that passes the through-hole install in the structure main part, make it can the space of structure main part is interior horizontal hunting and from ending stretching out in the position.
In the self-locking pull rod, the stop buckle comprises a fixing part which is positioned at the upper part and is provided with a through hole and a hook-shaped bulge part which is positioned at the lower part and is arranged at the same side with the locking hole of the stop buckle of the outer pipe, and the bulge part is heavier than the fixing part; when the pull rod is vertical, the whole anti-retraction buckle is not influenced by external force and is positioned in the outer pipe, and the inner pipe can be freely pulled up and down; when the pull rod inclines, the anti-retraction buckle rotates under the action of gravity, the protruding part moves outwards and falls into the anti-retraction buckle locking hole of the outer tube, and at the moment, the inner tube can only be pulled upwards because the protruding part is clamped under the anti-retraction buckle locking hole of the outer tube and cannot move downwards.
In the self-locking pull rod, one side of the fixing part of the anti-retraction buckle, which is far away from the anti-retraction buckle lock hole of the outer pipe, is also provided with a trigger part, and the outer pipe is provided with a protruding touch point which is arranged on the same side as the trigger part and can touch the trigger part; when the inner tube is pulled upwards, the touch point touches the trigger part, the trigger part applies downward force to the trigger part to enable the anti-retraction buckle to rotate, and the protruding part tilts and slides into the anti-retraction buckle locking hole of the outer tube.
In the self-locking pull rod, the trigger part is made of flexible materials, when the inner pipe moves downwards, the trigger part can move downwards from the collision point through deformation, and at the moment, the anti-withdrawing buckle rotates reversely to enable the protruding part to be far away from the anti-withdrawing buckle locking hole of the outer pipe.
In the self-locking pull rod of the invention, the fixing piece and the structural part main body are integrally formed by injection molding.
In the self-locking pull rod, the anti-retraction buckle is positioned outside the inner pipe, or is partially accommodated in the inner pipe, or is completely embedded in the inner pipe, and when the anti-retraction buckle is completely embedded in the inner pipe, an inner pipe clearance groove convenient for the anti-retraction buckle to extend out of the inner pipe is formed in one side of the inner pipe, which corresponds to the outer pipe anti-retraction buckle locking hole.
In the self-locking pull rod, the anti-retraction buckle comprises a fixing part and a locking part, the fixing part is positioned at the upper part and provided with a through hole, the locking part is positioned at the lower part, one end of the locking part, which is close to the anti-retraction buckle locking hole of the outer pipe, is provided with a locking rod, the other end of the locking part is matched with the locking rod to form a hook shape capable of buckling the lower edge of the anti-retraction buckle locking hole of the outer pipe, the other end of the locking part is heavier than the end of the locking rod, the locking rod is always in a horizontal state when the anti-retraction buckle is not subjected to external force, when the pull rod is vertical, the locking rod of the anti-retraction buckle can extend out of the anti-retraction buckle locking hole of the outer pipe, and; when the pull rod inclines, the anti-retraction buckle rotates under the action of gravity, so that the lock rod can be retracted from the anti-retraction buckle lock hole of the outer tube, and the inner tube can be pulled freely.
In the self-locking pull rod, the left side and the right side of the outer pipe are respectively provided with an outer pipe retraction stopping locking hole, the left side and the right side of the protruding part are respectively provided with an oblique downward locking tooth, and the locking teeth at the two sides are symmetrically arranged.
The invention also provides a draw-bar box which comprises any one of the self-locking draw bars.
The self-locking pull rod and the pull rod box have the following beneficial effects: the self-locking of the pull rod is completed through the matching of the stop buckle and the outer pipe and the inner pipe, a plurality of parts such as a button, a spring, a sliding block, a pressing rod and a pressing foot of the traditional pull rod are not needed, the structure is simple, the weight of the pull rod is reduced, the manufacturing cost is reduced, the production process is simplified, the appearance overall design feeling of the pull rod is enhanced, and the use by a user is facilitated.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural view of a locking buckle of the self-locking pull rod of the present invention;
FIG. 2 is a schematic structural view of a fixing member of the self-locking pull rod of the present invention;
FIG. 3 is a schematic view of a self-locking pull rod according to an embodiment of the present invention, in which a stop buckle is fixed on an inner tube by a fixing member;
FIG. 4 is a schematic structural diagram of an outer tube of the self-locking pull rod of the present invention;
FIG. 5 is an assembled perspective view of a first embodiment of the self-locking tie rod of the present invention;
FIG. 6 is a schematic view of an embodiment of the self-locking tie bar of the present invention with the tie bar tilted;
FIG. 7 is a schematic structural view of a second structural member of the self-locking tie bar of the present invention;
FIG. 8 is an inside perspective view of a second structural member of the embodiment of the self-locking tie bar of the present invention;
FIG. 9 is an assembled perspective view of a second embodiment of the self-locking pull rod of the present invention;
FIG. 10 is a schematic view of a self-locking tie rod according to an embodiment of the present invention when the tie rod is tilted;
FIG. 11 is a schematic structural view of a second fixing element and a structural member integrally formed according to an embodiment;
FIG. 12 is a schematic structural view of a third anti-retraction buckle according to the embodiment of the self-locking pull rod of the present invention;
FIG. 13 is an interior perspective view of the anti-backup buckle of FIG. 12 installed in a structure;
FIG. 14 is a schematic view of another angle of FIG. 13;
FIG. 15 is an assembled perspective view of a third embodiment of the self-locking pull rod of the present invention;
FIG. 16 is a schematic view of an embodiment of the self-locking tie rod of the present invention with the tie rod tilted;
FIG. 17 is a schematic view of an embodiment of the self-locking pull rod of the present invention with the four pull rods being vertically pulled;
FIG. 18 is a schematic view of an embodiment of the self-locking tie rod of the present invention with the four tie rods locked vertically;
fig. 19 is a schematic view of an embodiment of the self-locking pull rod of the invention when the four pull rods are obliquely pulled.
Detailed Description
Example one
Fig. 1 to 6 show a self-locking pull rod according to a first embodiment of the present invention, which includes an outer tube 1 and an inner tube 2 sleeved in the outer tube 1, the outer tube 1 is fixed, the inner tube 2 is pulled up and down, a plurality of outer tube locking holes 11 are disposed on a side surface of the outer tube 1, and the outer tube locking holes 11 can be disposed on any side of the outer tube. For convenience of explanation, the outer tube locking hole 11 is disposed on the right side of the outer tube 1 in this embodiment. The bottom of the inner tube 2 is fixed with a stop buckle 41, the lower part of the stop buckle 41 is heavier than the upper part, the stop buckle 41 comprises a fixing part 100 positioned on the upper part and a hook-shaped bulge 200 arranged on the same side of the outer tube stop buckle lock hole 11 on the lower part, the fixing part 100 is provided with a through hole, the stop buckle 41 passes through the through hole through a fixing part 3 or a pin and is installed on the bottom of the inner tube 2, and the stop buckle 41 rotates by taking the circle center of the through hole as a rotation center. The left side and the right side of the outer pipe 1 are both provided with outer pipe retraction stopping buckle lock holes 11, the left side and the right side of the protruding part 200 are both provided with oblique downward lock teeth, and the lock teeth on the two sides are symmetrically arranged. When the pull rod is vertical, the whole anti-retraction buckle 41 is positioned in the outer tube without the action of external force, and the inner tube 2 can be freely pulled up and down. When the pull rod inclines rightwards, the anti-retraction buckle 41 also rotates rightwards to incline under the action of gravity, the bulge part 200 on the right side of the lower part is abutted against the inner wall of the outer tube 1, the inner tube 2 is pulled upwards at the moment, when the anti-retraction buckle 41 moves upwards to the anti-retraction buckle locking hole 11 of the outer tube, the bulge part 200 slides downwards into the anti-retraction buckle locking hole 11 of the outer tube under the action of gravity, at the moment, the inner tube 2 only needs to be pressed downwards slightly, the anti-retraction buckle 41 is clamped on the lower edge of the anti-retraction buckle locking hole 11 of the outer tube 1, the inner tube 2 cannot move downwards continuously when being pressed downwards, and the inner; when the inner tube 2 continues to be pulled upwards, the anti-retraction buckle 41 slides out of the outer tube anti-retraction buckle lock hole 11 under the downward force of the side wall of the outer tube 1, and the inner tube 2 can be pulled upwards freely; when the inner tube 2 needs to be retracted, the pull rod is only needed to be erected, the inner tube 2 is lifted a little upwards, the retraction stopping buckle 41 retracts into the outer tube 1 due to self weight, and the inner tube 2 can be retracted at the moment. If the self-locking pull rod arranged above needs to be self-locked when the pull rod is vertical, the pull rod is inclined to enable the retaining buckle 41 to clamp the outer tube 1 and then to be vertical again, otherwise, the pull rod cannot play a self-locking function when vertical, the retaining buckle 41 cannot be clamped when the pull rod vertically slides up and down, and the pull rod cannot be self-locked.
In this embodiment, the fixing member 3 includes fastening portions 31 on both sides and a protruding point 32 in the middle, a structural member mounting hole 21 is formed in the side wall of the inner tube 2, the fastening portion 31 is fastened on the outer wall of the inner tube 2, and the protruding point 32 penetrates through the structural member mounting hole 21 and the through hole to fix the anti-folding buckle 41 on the inner tube 2. As shown in fig. 2, the cross section of the fixing member 3 is a half-square, the distance between the two side fastening portions 31 is slightly larger than the outer diameter of the inner tube 2, one of the two sides is fastened on the outer wall of the inner tube 2, and the middle cylindrical protrusion 32 simultaneously penetrates through the structural member mounting hole 21 and the through hole of the anti-retraction buckle 41, so as to fix the anti-retraction buckle 41 in the inner tube 2. The diameter of the through hole is larger than that of the cylindrical convex point 32, so that the anti-take-up buckle 41 can rotate freely. Of course, it is also possible to replace the fixing member 3 in the present embodiment with a pin, a bolt, or the like, by simply connecting the anti-retraction buckle 41 to the inner tube 2.
Example two
Fig. 7 to 11 show a second embodiment of the self-locking pull rod of the present invention, in this embodiment, the fixing member 3 includes two side fastening portions 31 and a middle protruding point 32, the side wall of the inner tube 2 is provided with a structural member mounting hole 21, and the fastening portions 31 are fastened on the outer wall of the inner tube 2; the pull rod further comprises a structural member 4, wherein the structural member 4 comprises a structural member main body 42 positioned at the lower part and a connecting part 43 positioned at the upper part; the structural member main body 42 is of a hollow structure, a stop position 44 is arranged on the same side of the outer tube stop buckle lock hole 11, and the stop buckle 41 passes through the through hole through a mounting shaft 45 and is mounted in the structural member main body 42 and can swing left and right in the space of the structural member main body 42; the middle part of the connecting part 43 is provided with a mounting hole 46 which is the same side with the structural part mounting hole 21; the structural member 4 is fixed to the bottom of the inner tube 2 by any one of welding, adhesive bonding, pins, or protrusions 32 of the fixing member 3 passing through the structural member mounting holes 21 and the mounting holes 46. The second embodiment is different from the first embodiment in that the anti-retraction buckle 41 is connected with the inner tube 2 through the structural member 4, the structural member 4 accommodates the anti-retraction buckle 41 in the lower space, and can rotate freely, so that the anti-retraction buckle 41 can extend out and slide into the outer tube anti-retraction buckle lock hole 11, the right side is provided with the stop position 44, thus when the pull rod is pulled upwards in an inclined manner, the anti-retraction buckle 41 extends out from the stop position 44 and slides into the outer tube anti-retraction buckle lock hole 11, the inner tube 2 can not slide down and only can be pulled upwards, and self-locking is completed. The structural member 4 and the inner tube 2 can be connected in various ways, the structural member 4 is only required to be fixed on the inner tube 2, the connection way can be welding or adhesive bonding, a connecting part 43 is arranged at the upper part of the structural member 4, a mounting hole 46 is formed in the connecting part 43, and a pin penetrates through the structural member mounting hole 21 and the mounting hole 46 or the fixing members 3 are arranged at two sides of the connecting part 43, so that the structural member 4 is mounted at the bottom of the inner tube 2. It should be noted that the fixing member 3 may be an independent component or may be formed integrally with the structural member main body 42 by injection molding, as shown in fig. 11, the fixing member 3 is disposed on the top or the side of the structural member main body 42 on the same side as the mounting hole 46, so that the installation is convenient, and the fixing members 3 on both sides are directly turned upwards, and the protruding points 32 are aligned with the mounting hole 46 to be inserted.
In the embodiment, the stop buckle 41 is arranged outside the inner tube 2, partially accommodated in the inner tube 2 or completely embedded in the inner tube 2, and when the stop buckle 41 is completely embedded in the inner tube 2, an inner tube clearance groove is formed on the side of the inner tube 2 corresponding to the outer tube stop buckle locking hole 11 so that the stop buckle 41 extends out of the inner tube 2. If the anti-retraction buckle 41 is arranged outside the inner tube 2, the rotation of the anti-retraction buckle 41 is not affected, and if the anti-retraction buckle 41 is completely embedded in the inner tube 2, a groove needs to be formed on the corresponding side of the outer tube anti-retraction buckle lock hole 11, so that the anti-retraction buckle 41 can normally rotate to the outside.
EXAMPLE III
Both the first embodiment and the second embodiment of the self-locking pull rod of the invention can realize the self-locking function only when the pull rod is in an inclined state, and can not realize self-locking when the pull rod is in a vertical state, so a third embodiment that the pull rod can realize self-locking when the pull rod is in the vertical state is designed, as shown in fig. 12 to 16, a trigger part 300 is further arranged on one side of the fixing part 100 of the stop buckle 41 of the embodiment, which is opposite to the stop buckle lock hole 11 of the outer tube, and a protruding touch point 5 is arranged on the outer tube 1 at the same side of the trigger part 300 at intervals. The anti-retraction buckle 41 in the embodiment can be used alone or in combination with the structural member 4, when the anti-retraction buckle is used alone, the anti-retraction buckle in the first embodiment is replaced by the anti-retraction buckle with the trigger part 300, and when the anti-retraction buckle is used in combination with the structural member 4, the collision point clearance groove 47 is required to be formed on the structural member main body 42 on the same side as the collision point 5; when the inner pipe 2 is pulled up, the collision point 5 passes through the collision point clearance groove 47 and collides with the trigger part 300, a downward force is applied to the trigger part 300, the anti-retraction buckle 41 rotates towards the other side, the bulge part 200 tilts and slides into the outer pipe anti-retraction buckle lock hole 11 to clamp the inner pipe 2, so that the inner pipe 2 cannot move downwards and only can be pulled up. The trigger part 300 transversely extends leftwards, the left side of the structural part 4 is correspondingly provided with a collision point avoiding groove 47, so that the trigger part 300 extends out of the collision point avoiding groove 47, the left side inside the outer tube 1 is provided with a collision point 5, the position of the collision point 5 corresponds to the position of the outer tube retraction-preventing buckle lock hole 11, an inward concave point can be pressed on the outer tube 1 to replace the collision point 5, and the trigger part 300 is mainly abutted. So, when the inner tube 2 when upwards pulling, trigger portion 300 and touch the point of touch 5 on the inner tube 2, trigger portion 300 receives decurrent power to make and stop to receive and detain 41 anticlockwise rotation, the bellying 200 perk of lower part is the right side, just slips into the outer tube and stops to receive in detaining lockhole 11, pushes down inner tube 2 slightly, stops to receive and detains 41 and just block on the outer edge that the lockhole 11 was stopped to the outer tube, makes inner tube 2 can not the downstream, only can upwards pull, reaches the purpose of auto-lock. When the inner tube 2 is further pulled upwards, the anti-retraction buckle 41 slides out from the outer tube anti-retraction buckle lock hole 11 by the downward force of the side wall of the outer tube 1, so that the inner tube 2 can be further pulled upwards until the top.
In this embodiment, the trigger portion 300 is made of a flexible material, and is soft and bendable, when the inner tube 2 moves downward, the trigger portion 300 is deformed and falls down from the collision point 5 when contacting the collision point 5, and the left side of the anti-retraction buckle 41 is clockwise rotated by an upward force, so that the protrusion 200 is far away from the outer tube anti-retraction buckle locking hole 11, and the outer tube anti-retraction buckle locking hole 11 is avoided from being blocked by the lower edge of the outer tube anti-retraction buckle locking hole, and the inner tube 2 is retracted downward to the original position. When the pull rod is used in an inclined mode, the operation process of the upward pulling of the whole pull rod is the same as the principle of the embodiment 2, and the process of the downward contraction is the same as the principle of the downward sliding of the embodiment 3 in a vertical mode, and the description is omitted.
Example four
The locking part 41 in this embodiment includes a fixing portion 100 located at the upper portion and provided with a through hole, and a locking portion 300 located at the lower portion, one end of the locking portion 300 close to the outer tube locking hole 11 is a locking rod 301, the other end of the locking portion cooperates with the locking rod 301 to form a hook shape capable of locking the lower edge of the outer tube locking hole 11, and the other end of the locking portion is heavier than the end of the locking rod. The whole retraction-preventing buckle 41 keeps balance when no external force is applied, so that the lock rod 301 is always in a horizontal state. When the pull rod is vertical, the lock rod 301 of the anti-retraction buckle 41 can extend out from the outer tube anti-retraction buckle lock hole 11, so that the initial state of the anti-retraction buckle 41 in the outer tube 1 is an inclined state (as shown in fig. 17), at this time, the anti-retraction buckle 41 is completely positioned in the outer tube 1, because the right side of the anti-retraction buckle 41 is obviously heavier than the left lock rod 301, the lock rod 301 is pressed downwards by the inner wall of the outer tube 1 and the lock rod 301 is limited by the inner diameter of the outer tube, but always has a tendency of upwards tilting, and the inner tube 2 can freely move upwards and; when the pull rod is pulled upwards until the stop buckle 41 passes through the outer tube stop buckle locking hole 11, the stop buckle 41 rotates under the action of gravity, so that the lock rod 301 slides into the outer tube stop buckle locking hole 11 and extends out of the outer tube stop buckle locking hole 11, and at the moment, the inner tube 2 cannot move downwards due to the fact that the locking part 300 is clamped at the lower edge of the outer tube stop buckle locking hole 11, so that the inner tube 2 can only be pulled upwards. When the pull rod is tilted (as shown in fig. 19), the anti-retraction button 41 is rotated by gravity to keep balance, and the lock rod 301 is retracted from the outer tube anti-retraction lock hole 11, and the anti-retraction button 41 is retracted into the outer tube 1 as a whole, so that the inner tube 2 can be pulled freely. If the inner tube 2 is pushed downwards when the pull rod is vertical and the pull rod is not inclined, the inner tube 2 can be pulled upwards quickly and in a short distance, so that the whole retraction-stopping buckle 41 is obliquely retracted into the outer tube 1, and the inner tube 2 is pushed downwards immediately, so that the aim of pushing the inner tube 2 downwards by the vertical pull rod can be fulfilled.
The invention also provides a draw-bar box which comprises the self-locking draw bar. The self-locking pull rod and the pull rod box of the invention complete the self-locking of the pull rod by the matching of the stop buckle and the outer tube and the inner tube, do not need a plurality of parts of buttons, springs, sliders, pressure rods, pressure feet and the like of the traditional pull rod, have simple structure, reduce the weight of the pull rod, reduce the manufacturing cost, simplify the production process, enhance the overall design sense of the appearance of the pull rod and facilitate the use of users.
The foregoing is only a preferred embodiment of the present invention, and many variations in the detailed description and the application range can be made by those skilled in the art without departing from the spirit of the present invention, and all changes that fall within the protective scope of the invention are therefore considered to be within the scope of the invention.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2020/096650 WO2020259373A1 (en) | 2019-06-26 | 2020-06-17 | Self-locking draw bar and trolley case |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019105632814 | 2019-06-26 | ||
| CN201910563281.4A CN110200385A (en) | 2019-06-26 | 2019-06-26 | A kind of self-locking pull rod and trolley case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110934404A true CN110934404A (en) | 2020-03-31 |
Family
ID=67794659
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910563281.4A Pending CN110200385A (en) | 2019-06-26 | 2019-06-26 | A kind of self-locking pull rod and trolley case |
| CN201921912295.4U Expired - Fee Related CN210988696U (en) | 2019-06-26 | 2019-11-07 | Self-locking type pull rod and pull rod box |
| CN201911083221.9A Pending CN110934404A (en) | 2019-06-26 | 2019-11-07 | Self-locking type pull rod and pull rod box |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910563281.4A Pending CN110200385A (en) | 2019-06-26 | 2019-06-26 | A kind of self-locking pull rod and trolley case |
| CN201921912295.4U Expired - Fee Related CN210988696U (en) | 2019-06-26 | 2019-11-07 | Self-locking type pull rod and pull rod box |
Country Status (2)
| Country | Link |
|---|---|
| CN (3) | CN110200385A (en) |
| WO (1) | WO2020259373A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020259373A1 (en) * | 2019-06-26 | 2020-12-30 | 曾冰 | Self-locking draw bar and trolley case |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5570491A (en) * | 1995-11-28 | 1996-11-05 | Tung; Chen C. | Retractable handle locating structure |
| JPH0914223A (en) * | 1995-07-03 | 1997-01-14 | Torii Seisakusho:Kk | Column locking tool |
| US5876048A (en) * | 1997-02-06 | 1999-03-02 | Lee; Chi-Tsai | Extensible draw bar device |
| US6409207B1 (en) * | 2000-07-17 | 2002-06-25 | Chaw Khong Technology Co., Ltd. | Swivel draw bar structure of a suitcase |
| CN210988696U (en) * | 2019-06-26 | 2020-07-14 | 曾冰 | Self-locking type pull rod and pull rod box |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201938644U (en) * | 2010-11-22 | 2011-08-24 | 赖东峰 | Slidable pull rod |
| CN206072038U (en) * | 2016-08-30 | 2017-04-05 | 富鼎电子科技(嘉善)有限公司 | Self-locking elevating mechanism |
-
2019
- 2019-06-26 CN CN201910563281.4A patent/CN110200385A/en active Pending
- 2019-11-07 CN CN201921912295.4U patent/CN210988696U/en not_active Expired - Fee Related
- 2019-11-07 CN CN201911083221.9A patent/CN110934404A/en active Pending
-
2020
- 2020-06-17 WO PCT/CN2020/096650 patent/WO2020259373A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0914223A (en) * | 1995-07-03 | 1997-01-14 | Torii Seisakusho:Kk | Column locking tool |
| US5570491A (en) * | 1995-11-28 | 1996-11-05 | Tung; Chen C. | Retractable handle locating structure |
| US5876048A (en) * | 1997-02-06 | 1999-03-02 | Lee; Chi-Tsai | Extensible draw bar device |
| US6409207B1 (en) * | 2000-07-17 | 2002-06-25 | Chaw Khong Technology Co., Ltd. | Swivel draw bar structure of a suitcase |
| CN210988696U (en) * | 2019-06-26 | 2020-07-14 | 曾冰 | Self-locking type pull rod and pull rod box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020259373A1 (en) * | 2019-06-26 | 2020-12-30 | 曾冰 | Self-locking draw bar and trolley case |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020259373A1 (en) | 2020-12-30 |
| CN110200385A (en) | 2019-09-06 |
| CN210988696U (en) | 2020-07-14 |
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Application publication date: 20200331 |