CN113602340B - Telescopic link and children article - Google Patents
Telescopic link and children article Download PDFInfo
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- CN113602340B CN113602340B CN202110779574.3A CN202110779574A CN113602340B CN 113602340 B CN113602340 B CN 113602340B CN 202110779574 A CN202110779574 A CN 202110779574A CN 113602340 B CN113602340 B CN 113602340B
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- rod
- unlocking
- inclined plane
- piece
- locking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/20—Handle bars; Handles
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a telescopic rod and a children article, wherein the telescopic rod comprises a first rod and a second rod with a tube cavity, the first rod can be arranged on the second rod in a sliding manner along the length extending direction of the tube cavity, the telescopic rod further comprises a locking mechanism for locking the relative positions of the first rod and the second rod and an unlocking mechanism for unlocking the locking mechanism, the unlocking mechanism comprises an unlocking piece arranged on the first rod in a sliding manner, the telescopic rod further comprises a positioning piece movably arranged on the first rod, when the locking mechanism is in a locking state, the positioning piece is fixed relative to the first rod, the positioning piece is positioned between the unlocking piece and the inner wall of the second rod and is respectively abutted against the unlocking piece and the inner wall of the second rod for matching, when the unlocking piece slides relative to the first rod to unlock the locking mechanism, the positioning piece is separated from the unlocking piece or the inner wall of the second rod, and the positioning piece can move relative to the first rod. The telescopic rod can eliminate the gap between the first rod and the second rod through the positioning piece, so that the first rod and the second rod do not shake.
Description
Technical Field
The invention relates to the technical field of children products, in particular to a telescopic rod and a children product.
Background
Contain the telescopic link among children's articles such as children's shallow, the telescopic link generally all includes two poles that can relative slip set up, is provided with the lumen that extends along its length direction on at least one member, and another pole can be followed the length extending direction slip retraction lumen of lumen or stretch out from the lumen to change the length of telescopic link.
For the length of conveniently adjusting the telescopic link, be provided with the clearance between these two poles, when making the telescopic link can not adjust length through the relative position locking of locking mechanical system with two poles, because the existence in clearance, still take place to rock easily between these two poles to make the rigidity of telescopic link less than, make children articles for use's stability relatively poor.
Disclosure of Invention
The present invention is directed to overcome the disadvantages of the prior art, and provides a telescopic rod, which can eliminate the gap between a first rod and a second rod by a positioning member when locking the relative positions of the first rod and the second rod by a locking mechanism, so that the first rod and the second rod do not shake.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a telescopic link, includes first pole and second pole, the second pole has the lumen that extends along its length direction, first pole portion is located in the lumen of second pole and can set up along the length extending direction of lumen with sliding, the telescopic link is still including being used for with locking mechanical system that the relative position of first pole with the second pole was locked and being used for ordering about the unlocking mechanism of locking mechanical system unblock, unlocking mechanism is including setting up with sliding unlocking piece on the first pole, the telescopic link is still including the activity setting up locating element on the first pole, works as locking mechanical system is in locking state, the locating element is relative the first pole is fixed, the locating element is located between unlocking piece and the inner wall of second pole and respectively with unlocking piece with the cooperation is established to the inner wall counterbalance of second pole, works as the unlocking piece is relative first pole makes along first direction slip locking mechanism unblock back, the locating element breaks away from unlocking piece or the inner wall of second pole, the locating element can be relative first pole motion.
Preferably, the positioning member is rotatably provided on the first lever.
Furthermore, the locating part sets up respectively the relative both sides of deblocking spare, be located the relative both sides of deblocking spare the locating part with first pole coaxial rotation connects.
Further, be provided with first inclined plane on the unlocking piece, first inclined plane is followed first direction certainly the inside of first pole extends to the outside slope, be provided with on the setting element with first inclined plane assorted second inclined plane, work as locking mechanical system is in locking state, first inclined plane with the cooperation is established in the counterbalance of second inclined plane, work as when locking mechanical system is in unlocking state, first inclined plane with cooperation between the second inclined plane is thrown off.
Furthermore, the surface of the positioning piece, which is abutted against the inner wall of the second rod, is an arc surface.
Preferably, the positioning element is slidably disposed on the first rod, and a sliding direction of the positioning element is perpendicular to a sliding direction of the unlocking element.
Furthermore, a first plane is arranged on the positioning piece, a second plane matched with the first plane is arranged on the unlocking piece, when the locking mechanism is in a locking state, the first plane is abutted against the second plane for matching, and when the locking mechanism is in an unlocking state, the first plane is disengaged from the second plane in a matching manner.
Furthermore, still be provided with on the setting element with the third inclined plane that first plane order meets, the third inclined plane is followed first direction certainly the inside of first pole inclines to the outside and extends, be provided with on the unlocking piece with third inclined plane assorted fourth inclined plane, the second plane with fourth inclined plane order meets, works as when locking mechanical system is in locking condition, the third inclined plane is kept away from the fourth inclined plane, works as when locking mechanical system is in unlocking condition, the third inclined plane can with the fourth inclined plane cooperatees.
Preferably, along the length extension direction of the telescopic rod, at least two groups of positioning parts are arranged, and each group comprises two positioning parts which are respectively arranged at two opposite sides of the unlocking part.
The invention also provides a children product which comprises the telescopic rod.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the telescopic rod, the positioning piece is movably arranged on the first rod, and when the relative position between the first rod and the second rod is locked through the locking mechanism, the positioning piece can be abutted against the inner wall of the second rod, so that the gap between the first rod and the second rod can be eliminated, the first rod and the second rod are prevented from shaking, and the strength of the telescopic rod is improved; and after locking mechanical system unblock, the setting element can move relatively first pole to make the setting element act on the second pole to support and establish the power and eliminate, can relax relative slip between first pole and the second pole, with the length of adjusting the telescopic link.
Drawings
Fig. 1 is a schematic structural view of the telescopic rod of the embodiment;
FIG. 2 is a partially exploded view of the extension pole of the present embodiment (embodiment 1);
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is an enlarged view of a portion B of FIG. 2;
FIG. 5 is a schematic sectional view of the telescopic rod of the present embodiment (embodiment 1, the locking mechanism is in a locked state);
FIG. 6 is an enlarged view of a portion A of FIG. 5;
fig. 7 is a schematic sectional view of the telescopic rod of the present embodiment (embodiment 1, the locking mechanism is in an unlocked state);
FIG. 8 is an enlarged view of a portion A of FIG. 7;
FIG. 9 is an enlarged view of a portion of FIG. 7 at B;
FIG. 10 is a partially exploded view of the telescopic rod of the present embodiment (embodiment 2);
FIG. 11 is an enlarged view of a portion of FIG. 10 at A;
FIG. 12 is an enlarged view of a portion of FIG. 10 at B;
FIG. 13 is a schematic sectional view of the telescopic rod of the present embodiment (embodiment 2, locking mechanism is in locking state);
FIG. 14 is an enlarged view of a portion of FIG. 13 at A;
FIG. 15 is an enlarged view of a portion of FIG. 13 at B;
FIG. 16 is a schematic sectional view of the telescopic rod of the present embodiment (embodiment 2, locking mechanism is in unlocked state);
FIG. 17 is an enlarged view of a portion of FIG. 16 at A;
fig. 18 is a partial enlarged view of fig. 17 at B.
Wherein: 1. a first lever; 2. a second lever; 31. a locking member; 32. a first elastic member; 41. unlocking the lock; 411. a first inclined plane; 412. a second plane; 413. a fourth slope; 42. an operating member; 43. a traction cable; 44. a second elastic member; 5. a positioning member; 51. a second inclined plane; 52. a first plane; 53. a third inclined surface.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the telescopic rod of the present invention comprises a first rod 1 and a second rod 2, wherein the first rod 1 is slidably disposed on the second rod 2 along the length extension direction of the second rod 2.
The second rod 2 has a lumen extending along the length thereof, and the first rod 1 is partially located in the lumen and is slidable relative to the second rod 2 in the direction of retraction or extension of the lumen along the length extension of the lumen.
The telescopic rod further comprises a locking mechanism for locking the relative positions of the first rod 1 and the second rod 2, the locking mechanism has a locking state and an unlocking state, and when the locking mechanism is in the locking state, the relative positions of the first rod 1 and the second rod 2 are fixed and cannot slide relatively; when the locking mechanism is in an unlocked state, the first rod 1 and the second rod 2 can slide relatively, so that the length of the telescopic rod can be adjusted.
Specifically, the locking mechanism includes a locking member 31 slidably provided on the first lever 1 and a locking groove provided on the second lever 2 and matching with the locking member 31. When the lock mechanism is in the locked state, the lock member 31 is inserted in the lock groove; when the lock mechanism is in the unlocked state, the locking member 31 is disengaged from the lock groove.
Along the length extension of the second rod 2, a plurality of locking grooves may be provided at intervals, so that the locking of the first rod 1 and the second rod 2 may be performed at different positions.
The locking mechanism further includes a first elastic member 32 for urging the locking member 31 to return from the unlocked state to the locked state, and in this embodiment, the first elastic member 32 is a compression spring, and both end portions of the compression spring are respectively provided on the locking member 31 and the first lever 1.
The telescopic rod further comprises an unlocking mechanism for driving the locking mechanism to unlock, the unlocking mechanism comprises an unlocking piece 41 which is slidably arranged on the first rod 1, and the unlocking piece 41 is matched with the locking piece 31. When the unlocking member 41 slides relative to the first rod 1 in the first direction in the locked state of the locking mechanism, the locking member 31 is driven to slide relative to the first rod 1 and be disengaged from the locking groove by the cooperation of the unlocking member 41 and the locking member 31, so that the locking mechanism is unlocked.
In this embodiment, the unlocking member 41 and the locking member 31 are engaged with each other by an inclined surface, and when the unlocking member 41 slides relative to the first rod 1 in the first direction, the locking member 31 slides relative to the first rod 1 in a direction perpendicular to the first direction and in a direction away from the locking groove.
The unlocking mechanism further comprises an operating member 42 and a traction cable 43. The operating member 42 is movably provided on the first lever 1 for manual operation when unlocking the lock mechanism. One end of the pulling cable 43 is fixed to the operating element 42, and the other end is fixed to the unlocking element 41. When the operating member 42 is operated in the locked state of the locking mechanism, the pulling cable 43 is stretched and the pulling cable 43 pulls the unlocking member 41 to slide in the first direction with respect to the first lever 1, thereby unlocking the locking mechanism.
The unlocking mechanism further includes a second elastic member 44 disposed between the first rod 1 and the unlocking member 41, and in this embodiment, the second elastic member 44 is a compression spring, and both ends of the compression spring are disposed on the unlocking member 41 and the first rod 1, respectively. When the operating member 42 is operated to unlock the lock mechanism, the second elastic member 44 is compressed; when the operating member 42 is released, the unlocking member 41 is slidably restored to the original position in a second direction opposite to the first direction by the elastic force generated by the elastic deformation of the second elastic member 44.
The telescopic rod further comprises a positioning part 5 movably arranged on the first rod 1. When locking mechanical system is in the lock status, setting element 5 is fixed for first pole 1, and setting element 5 is located between the inner wall of deblocking piece 41 and second pole 2 to the cooperation is established with the inner wall counterbalance of deblocking piece 41 and second pole 2 respectively, like this, because setting element 5's the effect of establishing of propping, can eliminate the clearance between first pole 1 and the second pole 2, make first pole 1 and second pole 2 not take place to rock, thereby can improve the intensity of telescopic link. When the unlocking member 41 slides along the first direction relative to the first rod 1 to unlock the locking mechanism, the positioning member 5 can be disengaged from the matching with the unlocking member 41 or from the inner wall of the second rod 2, so that the positioning member 5 can move relative to the first rod 1, the abutting force applied to the second rod 2 by the positioning member 5 is eliminated, and the first rod 1 and the second rod 2 can easily slide relative to each other to adjust the length of the telescopic rod.
Along the length extending direction of telescopic link, setting element 5 is provided with two sets ofly at least, and every group all includes two setting elements 5 that set up respectively in the relative both sides of unblock piece 41, and like this, a plurality of setting elements 5 of accessible form effectual location, and in addition, can not take place the skew between first pole 1 and the second pole 2 to make and to slide smoothly between first pole 1 and the second pole 2.
The arrangement of the positioning element 5 on the first lever 1 and the manner of cooperation thereof with the unlocking element 41 are given in the present embodiment in the following two specific embodiments.
Example 1
As shown in fig. 2 to 9, the positioning members 5 are rotatably disposed on the first rod 1, and in this embodiment, one end of each of the positioning members 5 located on two opposite sides of the unlocking member 41 is coaxially and rotatably connected to the first rod 1.
The opposite two sides of the unlocking piece 41 are respectively provided with a first inclined surface 411, the first inclined surfaces 411 on the two sides all extend obliquely from the inside of the first rod 1 to the outside along the first direction, the positioning piece 5 is provided with a second inclined surface 51 matched with the first inclined surface 411, and the other end of the positioning piece 5 is an arc surface.
When the locking mechanism is in the locking state, the second inclined surface 51 is abutted against the first inclined surface 411 on the corresponding side for matching, and the cambered surface is abutted against the inner wall of the second rod 2, so that the positioning part 5 is fixed between the unlocking part 41 and the inner wall of the second rod 2 for positioning.
When the locking mechanism is in the unlocking state, the first inclined surface 411 is disengaged from the second inclined surface 51, the restraining force of the unlocking piece 41 acting on the positioning piece 5 is eliminated, the abutting force of the positioning piece 5 acting on the inner wall of the second rod 2 is also eliminated, and when the first rod 1 slides relative to the second rod 2, the positioning piece 5 can rotate relative to the first rod 1, so that the sliding of the first rod 1 cannot be blocked. Because the contact surface of the positioning piece 5 and the second rod 2 is an arc surface, the friction force is smaller when the first rod 1 slides relative to the second rod 2, and the relative sliding of the first rod 1 and the second rod 2 is more convenient.
Example 2
As shown in fig. 10 to 18, the positioning member 5 is slidably disposed on the first rod 1, and the sliding direction of the positioning member 5 is perpendicular to the sliding direction of the unlocking member 41.
The positioning member 5 is provided with a first plane 52, and the unlocking member 41 is provided with second planes 412 on opposite sides thereof to match the first plane 52.
When the locking mechanism is in the locking state, the first plane 52 abuts against and is matched with the second plane 412 on the corresponding side, and meanwhile, the positioning member 5 also abuts against the inner wall of the second rod 2, so that the positioning member 5 is fixed between the unlocking member 41 and the inner wall of the second rod 2 to play a positioning role.
When the locking mechanism is in the unlocking state, the first plane 52 and the second plane 412 are disengaged, the restraining force of the unlocking piece 41 on the positioning piece 5 is eliminated, the abutting force of the positioning piece 5 on the inner wall of the second rod 2 is also eliminated, and when the first rod 1 slides relative to the second rod 2, the positioning piece 5 can slide relative to the first rod 1 and is disengaged from the abutting with the inner wall of the second rod 2, so that the sliding of the first rod 1 cannot be blocked.
The positioning member 5 is further provided with a third inclined surface 53 sequentially connected to the first plane 52, the third inclined surface 53 extends obliquely from the inside of the first rod 1 to the outside in the first direction, the unlocking member 41 is provided with a fourth inclined surface 413 matched with the third inclined surface 53, and the second plane 412 is sequentially connected to the fourth inclined surface 413.
When the locking mechanism is in the locked state, the third inclined surface 53 is far away from the fourth inclined surface 413, and when the locking mechanism is in the unlocked state, the third inclined surface 53 can be matched with the fourth inclined surface 413 in the process of sliding the first rod 1 relative to the second rod 2. When the locking mechanism is reset from the unlocked state to the locked state, the positioning member 5 can be driven to slide towards the direction close to the inner wall of the second rod 2 by the cooperation of the third inclined surface 53 and the fourth inclined surface 413, so that the first plane 52 can be matched with the second plane 412, and the positioning member 5 can play a positioning role.
The telescopic rod can be applied to children articles, and the children articles can be children carts. The stroller comprises a stroller frame, and the telescopic rod is a rod piece forming the stroller frame.
When the stroller is in the unfolded use state, the locking mechanism is in the locked state, and the positioning member 5 is fixed between the unlocking member 41 and the inner wall of the second rod 2 to eliminate the gap between the first rod 1 and the second rod 2, so that the first rod 1 and the second rod 2 are not shaken, the stroller is in the stable use state, and the safety performance of the stroller in use is improved.
When the child stroller is folded, the telescopic rod is required to be retracted, and the positioning part 5 can move relative to the first rod 1, so that the abutting force of the positioning part 5 acting on the second rod 2 is eliminated, and the first rod 1 and the second rod 2 can easily slide relative to each other to retract the telescopic rod.
The telescopic link can be the push rod of shallow frame, locking mechanical system can be with the push rod locking in a plurality of high position departments, when the children's shallow pushes away the use in the people of different heights when expanding the user state, also can make locking mechanical system unblock, thereby make the length of relative slip regulation telescopic link between first pole 1 and the second pole 2, and first pole 1 and the 2 relative slip in-processes of second pole, setting element 5 is the motion of first pole 1 relatively equally, thereby make setting element 5 act on 2 the forces of establishing of support of second pole and eliminate, can relax relative slip between first pole 1 and the second pole 2.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (7)
1. A telescopic rod comprising a first rod and a second rod, the second rod having a lumen extending along a length thereof, the first rod portion being located in the lumen of the second rod and slidably disposed along the length extension of the lumen, the telescopic rod further comprising a locking mechanism for locking the relative position of the first rod and the second rod and an unlocking mechanism for actuating the locking mechanism to unlock, the unlocking mechanism comprising an unlocking member slidably disposed on the first rod, characterized in that: the telescopic rod further comprises a positioning piece movably arranged on the first rod, when the locking mechanism is in a locking state, the positioning piece is fixed relative to the first rod, the positioning piece is positioned between the unlocking piece and the inner wall of the second rod and is respectively abutted against and matched with the unlocking piece and the inner wall of the second rod, when the unlocking piece slides relative to the first rod along a first direction to unlock the locking mechanism, the positioning piece is separated from the unlocking piece or the inner wall of the second rod, and the positioning piece can move relative to the first rod; the positioning piece can be rotatably arranged on the first rod, the unlocking piece is provided with a first inclined plane, the first inclined plane obliquely extends outwards from the inside of the first rod along a first direction, the positioning piece is provided with a second inclined plane matched with the first inclined plane, when the locking mechanism is in a locking state, the first inclined plane and the second inclined plane are abutted and matched, and when the locking mechanism is in an unlocking state, the first inclined plane and the second inclined plane are disengaged; or, the setting element can set up with sliding on the first pole, be provided with first plane on the setting element, be provided with on the unlocking piece with first plane assorted second plane, work as when locking mechanical system is in the lock-out state, first plane with the cooperation is established to the counterbalance of second plane, work as when locking mechanical system is in the unlock state, first plane with cooperation between the second plane is thrown off.
2. The telescopic rod according to claim 1, wherein: the setting element sets up respectively the relative both sides of deblocking spare are located the relative both sides of deblocking spare the setting element with first pole coaxial rotation connects.
3. The telescoping pole of claim 1, wherein: the surface of the positioning piece, which is abutted against the inner wall of the second rod, is an arc surface.
4. The telescoping pole of claim 1, wherein: the sliding direction of the positioning piece is perpendicular to the sliding direction of the unlocking piece.
5. The telescoping pole of claim 1, wherein: still be provided with on the setting element with the third inclined plane that first plane order meets, the third inclined plane is followed first direction certainly the inside of first pole is to the outside slope and is extended, be provided with on the unlocking piece with third inclined plane assorted fourth inclined plane, the second plane with fourth inclined plane order meets, works as when locking mechanical system is in locking condition, the third inclined plane is kept away from the fourth inclined plane, works as when locking mechanical system is in unlocking condition, the third inclined plane can with the fourth inclined plane cooperatees.
6. The telescoping pole of claim 1, wherein: along the length extension direction of the telescopic rod, at least two groups of positioning parts are arranged, and each group comprises two positioning parts which are arranged on the two opposite sides of the unlocking part respectively.
7. A children's article, characterized in that: comprising the telescoping pole of any of claims 1~6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110779574.3A CN113602340B (en) | 2021-07-09 | 2021-07-09 | Telescopic link and children article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110779574.3A CN113602340B (en) | 2021-07-09 | 2021-07-09 | Telescopic link and children article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113602340A CN113602340A (en) | 2021-11-05 |
| CN113602340B true CN113602340B (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110779574.3A Active CN113602340B (en) | 2021-07-09 | 2021-07-09 | Telescopic link and children article |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113602340B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5499702A (en) * | 1994-10-07 | 1996-03-19 | Wang; King-Sheng | Retractable handle assembly |
| US5803214A (en) * | 1997-07-09 | 1998-09-08 | Wang; King-Sheng | Retractable handle mounting assembly of a travel bag |
| US6343404B1 (en) * | 2000-06-21 | 2002-02-05 | Chaw Khong Technology Co., Ltd. | Multi-step positioning device of trunk pull rod |
| CN201205036Y (en) * | 2008-04-11 | 2009-03-11 | 王建山 | Improved construction for pull rod |
| CN213116999U (en) * | 2020-07-09 | 2021-05-04 | 刘思尧 | Telescopic rod |
-
2021
- 2021-07-09 CN CN202110779574.3A patent/CN113602340B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5499702A (en) * | 1994-10-07 | 1996-03-19 | Wang; King-Sheng | Retractable handle assembly |
| US5803214A (en) * | 1997-07-09 | 1998-09-08 | Wang; King-Sheng | Retractable handle mounting assembly of a travel bag |
| US6343404B1 (en) * | 2000-06-21 | 2002-02-05 | Chaw Khong Technology Co., Ltd. | Multi-step positioning device of trunk pull rod |
| CN201205036Y (en) * | 2008-04-11 | 2009-03-11 | 王建山 | Improved construction for pull rod |
| CN213116999U (en) * | 2020-07-09 | 2021-05-04 | 刘思尧 | Telescopic rod |
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| Publication number | Publication date |
|---|---|
| CN113602340A (en) | 2021-11-05 |
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