CN217892945U

CN217892945U - Telescopic frame and child stroller, child bed and child sleeping basket with telescopic frame

Info

Publication number: CN217892945U
Application number: CN202221690300.3U
Authority: CN
Inventors: 高翔; 马福生; 秦超毅
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-25
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a telescopic frame, a child stroller with the telescopic frame, a child bed with the telescopic frame and a child sleeping basket with the telescopic frame, wherein the telescopic frame comprises a middle frame, a front frame, a rear frame and a locking mechanism, the front frame is connected with the middle frame in a sliding way, and the rear frame is connected with the middle frame in a sliding way; the locking mechanism comprises a left front locking mechanism, a left rear locking mechanism, a right front locking mechanism, a right rear locking mechanism and a synchronous linkage mechanism, and the left front locking mechanism, the left rear locking mechanism, the right front locking mechanism and the right rear locking mechanism synchronously enter a locking working state or synchronously enter an unlocking working state through the synchronous linkage mechanism. The utility model discloses a scalable frame only needs the synchronous link gear of operation once during the unblock, just can make whole locking mechanical system get into unblock operating condition in step, realizes a key unblock, and the frame that can be used to children's shallow is flexible, the crib encloses the basket frame flexible and children sleep the basket of basket flexible for these children's articles for use's easy operation is quick, facilitates the use.

Description

Telescopic frame and child stroller, child bed and child sleeping basket with telescopic frame

Technical Field

The utility model relates to a children's articles for use field especially relates to a scalable frame and have its children's shallow, crib, children's basket of sleeping.

Background

For satisfying children's shallow, crib and children's use of sleeping basket's multi-functional and convenient, the frame on the children's shallow, enclose frame on the crib and the sleep basket frame on the children's basket most be the telescopic, but these children's articles for use all have telescopic frame and locking mechanical system, realize telescopic frame's extension and shorten through locking mechanical system's locking and unblock. In the prior art, when the front frame of the telescopic frame is unlocked, an unlocking button for controlling the front frame part needs to be pressed, and only the front frame can be pulled after unlocking; when the rear frame is unlocked, an unlocking button for controlling the rear frame part needs to be pressed once again, and only the rear frame can be pulled after unlocking. The unblock of front and back frame can't realize synchronous, at every turn when the extension that needs to carry out scalable frame or shorten the operation, complex operation and consuming time, to the head of a family that needs often to operate children's shallow, crib and children's basket in every family, it is convenient inadequately to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of prior art, provide an improved telescopic bracket.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a telescopic frame comprises a middle frame and a front frame;

the middle frame comprises a left middle connecting rod positioned on the left side, a right middle connecting rod positioned on the right side, and a middle transverse connecting rod which is respectively connected with the left middle connecting rod and the right middle connecting rod to form a rigid whole;

the front frame comprises a left front connecting rod positioned on the left side, a right front connecting rod positioned on the right side and a front transverse connecting rod which is respectively connected with the left front connecting rod and the right front connecting rod to form a rigid whole; the telescopic frame is characterized by further comprising a rear frame and a locking mechanism;

the rear frame comprises a left rear connecting rod positioned on the left side, a right rear connecting rod positioned on the right side and a rear transverse connecting rod which is respectively connected with the left rear connecting rod and the right rear connecting rod to form a rigid whole; the front part of the left middle connecting rod is connected with the left front connecting rod in a sliding manner along the length extending direction of the left middle connecting rod, and the front part of the right middle connecting rod is connected with the right front connecting rod in a sliding manner along the length extending direction of the right middle connecting rod, so that the front frame and the middle frame can extend and retract; the rear part of the left middle connecting rod is connected with the left rear connecting rod in a sliding manner along the length extending direction of the left middle connecting rod, and the rear part of the right middle connecting rod is connected with the right rear connecting rod in a sliding manner along the length extending direction of the right middle connecting rod, so that the rear frame and the middle frame can be stretched;

the left middle connecting rod and the right middle connecting rod are respectively and fixedly connected with a left fixing seat and a right fixing seat; the locking mechanism has a locking working state and an unlocking working state, and in the locking working state, the locking mechanism locks the relative positions between the front frame and the middle frame and between the rear frame and the middle frame; in an unlocking working state, the front frame and the middle frame are allowed to stretch and contract, and the rear frame and the middle frame are allowed to stretch and contract; the locking mechanism includes:

the left front locking mechanism is used for locking the relative position between the left middle connecting rod and the left front connecting rod, and is arranged in the left fixed seat;

the left rear locking mechanism is used for locking the relative position between the left middle connecting rod and the left rear connecting rod and is arranged in the left fixed seat;

the right front locking mechanism is used for locking the relative position between the right middle connecting rod and the right front connecting rod and is arranged in the right fixed seat;

the right rear locking mechanism is used for locking the relative position between the right middle connecting rod and the right rear connecting rod and is arranged in the right fixed seat;

and the synchronous linkage mechanism is used for enabling the four locking mechanisms of the left front locking mechanism, the left rear locking mechanism, the right front locking mechanism and the right rear locking mechanism to synchronously enter a locking working state or synchronously enter an unlocking working state.

According to some preferred embodiments of the present invention, the left front locking mechanism includes a left front swing link, the middle of the left front swing link is pivotally connected to the front portion of the left fixing base through a left front swing link shaft, the front end of the left front swing link has a locking pin, the rear end of the left front swing link is a driving portion, a plurality of locking holes are distributed on the left front connecting rod along the length direction of the left front connecting rod, the left middle connecting rod also has a locking hole, and the locking pin is inserted into both the locking hole on the left front connecting rod and the locking hole on the left middle connecting rod when the left front locking mechanism is in a locking working state; when the left front locking mechanism is in an unlocking working state, the locking pin is separated from the locking hole on the left front connecting rod.

According to some preferred implementation aspects of the present invention, the left rear locking mechanism includes a left rear swing link, the middle portion of the left rear swing link is pivotally connected to the rear portion of the left fixing base through a left rear swing link pivot, the rear end portion of the left rear swing link is provided with a locking pin, the front end portion of the left rear swing link is a driving portion, the left rear connecting rod is provided with a plurality of locking holes along the length direction of the left rear connecting rod, the left middle connecting rod is also provided with locking holes, and when the left rear locking mechanism is in a locking working state, the locking pin is inserted into one locking hole on the left rear connecting rod and is also inserted into the locking hole on the left middle connecting rod; when the left rear locking mechanism is in an unlocking working state, the locking pin is separated from the locking hole on the left rear connecting rod.

According to some preferred implementation aspects of the present invention, the right front locking mechanism includes a right front swing rod, the middle of the right front swing rod is pivotally connected to the front portion of the right fixing seat through a right front swing rod rotating shaft, a locking pin is provided at the front end of the right front swing rod, the rear end of the right front swing rod is a driving portion, a plurality of locking holes are distributed on the right front connecting rod along the length direction of the right front connecting rod, a locking hole is also provided on the right middle connecting rod, and when the right front locking mechanism is in a locking working state, the locking pin is inserted into both the locking hole on the right front connecting rod and the locking hole on the right middle connecting rod; when the right front locking mechanism is in an unlocking working state, the locking pin is separated from the locking hole on the right front connecting rod.

According to some preferred implementation aspects of the present invention, the right rear locking mechanism includes a right rear swing link, the middle portion of the right rear swing link is pivotally connected to the rear portion of the right fixing base through a right rear swing link pivot, the rear end portion of the right rear swing link is provided with a locking pin, the front end portion of the right rear swing link is a driving portion, the right rear connecting rod is provided with a plurality of locking holes along the length direction of the right rear connecting rod, the right middle connecting rod is also provided with a locking hole, and when the right rear locking mechanism is in a locking working state, the locking pin is inserted into one locking hole on the right rear connecting rod and is also inserted into the locking hole on the right middle connecting rod; when the right rear locking mechanism is in an unlocking working state, the locking pin is separated from the locking hole on the right rear connecting rod.

According to some preferred aspects of the present invention, the synchronous linkage comprises,

the unlocking button is arranged in the left fixing seat in a sliding manner, and a button guide inclined plane is arranged on the unlocking button;

the unlocking handle is arranged in the right fixed seat in a sliding manner, and a handle guide inclined plane is arranged on the unlocking handle;

the left and right synchronous connecting rods are respectively connected with the unlocking button and the unlocking handle;

when the unlocking button is pressed, the unlocking button slides relative to the left fixing seat, or the unlocking handle is pulled to slide relative to the right fixing seat, the driving part of the left front swing rod and the driving part of the left rear swing rod are respectively contacted with the button guide inclined plane, so that the left front swing rod and the left rear swing rod are driven to rotate, meanwhile, the driving part of the right front swing rod and the driving part of the right rear swing rod are respectively contacted with the handle guide inclined plane, so that the right front swing rod and the right rear swing rod are driven to rotate, and the left front locking mechanism, the left rear locking mechanism, the right front locking mechanism and the right rear locking mechanism are synchronously switched from a locking working state to an unlocking working state.

According to some preferred implementation aspects of the utility model, the unblock button along control the direction set up with sliding in left fixing base in, the unblock handle along control the direction set up with sliding in right fixing base in, control synchronous connecting rod with the unblock button unblock handle rigidly connect as an organic wholely.

According to some preferred embodiments of the present invention, the synchronous linkage mechanism comprises,

the unlocking button is arranged in the right fixed seat in a sliding manner, and a button guide inclined plane is arranged on the unlocking button;

the unlocking handle is arranged in the left fixing seat in a sliding manner, and a handle guide inclined plane is arranged on the unlocking handle;

when the unlocking button is pressed, the unlocking button slides relative to the right fixing seat, or the unlocking handle is pulled to slide relative to the left fixing seat, the driving part of the right front swing rod and the driving part of the right rear swing rod are respectively contacted with the button guide inclined plane so as to drive the right front swing rod and the right rear swing rod to rotate, meanwhile, the driving part of the left front swing rod and the driving part of the left rear swing rod are respectively contacted with the handle guide inclined plane so as to drive the left front swing rod and the left rear swing rod to rotate, so that the left front locking mechanism, the left rear locking mechanism, the right front locking mechanism and the right rear locking mechanism are synchronously switched from a locking working state to an unlocking working state.

According to some preferred implementation aspects of the utility model, the unblock button along left right direction set up with sliding in right fixing base in, the unblock handle along left right direction set up with sliding in left fixing base in, left right synchronization connecting rod with the unblock button unblock handle rigidly connect as an organic wholely.

According to some preferred embodiments of the present invention, the intermediate transverse link is tubular, and the left and right synchronization links are located in the intermediate transverse link.

According to some preferred implementation aspects of the present invention, the button guide inclined plane inclines relative to the sliding direction of the unlocking button, the handle guide inclined plane inclines relative to the sliding direction of the handle, and the button guide inclined plane is the same as the handle guide inclined plane.

The utility model also provides a children's shallow of above-mentioned scalable frame.

The utility model also provides a crib with the above-mentioned scalable frame.

The utility model also provides a children sleeping basket with the telescopic frame.

Because above-mentioned technical scheme's application, the utility model provides a scalable frame, only need operate once synchronous link gear during the unblock, left front locking mechanical system, left back locking mechanical system, right front locking mechanical system, right back locking mechanical system just can get into unblock operating condition in step, realize a key unblock, and then make front frame and after-frame can be for middle frame synchronous flexible action, realize the quick extension of frame or shorten, the frame that can be used to children's shallow is flexible, the cradle frame that encloses the frame of crib flexible and children's cradle is flexible, the unblock easy operation is quick, make things convenient for people to use.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic perspective view of a stroller in a single-person use state according to a first embodiment of the present invention;

fig. 2 is a schematic perspective view of a stroller in a double use state according to a first embodiment of the present invention;

fig. 3 is an exploded view of the stroller according to the first embodiment of the present invention with a part of the structure hidden;

FIG. 3a is an enlarged partial view of portion A of FIG. 3;

FIG. 3B is an enlarged partial view of the portion B of FIG. 3;

fig. 4 is a schematic perspective view of a stroller according to a first embodiment of the present invention, after a part of the stroller is hidden, when a locking mechanism is in a locking working state;

FIG. 5 is a schematic sectional view taken along the direction G-G in FIG. 4;

FIG. 6 is an enlarged partial view of the portion C of FIG. 5;

FIG. 7 is a schematic cross-sectional view taken along the direction H-H in FIG. 4;

FIG. 8 is an enlarged partial view of the portion D of FIG. 7;

FIG. 9 is a schematic sectional view taken along line I-I of FIG. 4;

FIG. 10 is a cross-sectional view along the direction J-J in FIG. 4;

FIG. 11 is a schematic sectional view taken along the line K-K in FIG. 4;

fig. 12 is a schematic perspective view of the stroller according to the first embodiment of the present invention, after a part of the structure of the stroller is hidden, when the locking mechanism is in an unlocked state;

FIG. 13 is a cross-sectional view taken along the line L-L in FIG. 12;

FIG. 14 is an enlarged partial view of section E of FIG. 13;

FIG. 15 is a cross-sectional view of the structure of FIG. 12 taken along the line M-M;

FIG. 16 is an enlarged partial view of the portion F of FIG. 15;

FIG. 17 is a schematic cross-sectional view taken along the line N-N of FIG. 12;

FIG. 18 is a schematic cross-sectional view taken along line O-O in FIG. 12;

FIG. 19 is a schematic cross-sectional view taken along the line P-P in FIG. 12;

fig. 20 is a schematic perspective view of a child bed according to a second embodiment of the present invention;

fig. 21 is a schematic perspective view of a child bed in the second embodiment of the present invention, which is extended from fig. 20;

fig. 22 is a schematic perspective view of a children sleeping basket according to a third embodiment of the present invention;

fig. 23 is a schematic perspective view of the child sleeping basket in the third embodiment of the present invention, which is extended from fig. 22;

wherein: stroller-100;

frame-1, middle frame-110, left middle connecting rod-111, right middle connecting rod-112, middle cross connecting rod-113, left fixing seat-114, right fixing seat-115, kidney-shaped hole-116, auxiliary part-117, front frame-120, left front connecting rod-121, right front connecting rod-122, front cross connecting rod-123, rear frame-130, left rear connecting rod-131, right rear connecting rod-132, rear cross connecting rod-133, left front locking mechanism-140, left front swing rod-141, left front driving part-141 a, left front swing rod rotating shaft-142, left rear locking mechanism-150, left rear swing rod-151, left rear driving part-151 a, left rear swing rod rotating shaft-152, right front locking mechanism-160, right front swing rod-161, right front driving part-161 a, right front swing rod rotating shaft-162, right rear locking mechanism-170, right rear swing rod-171, right rear driving part-171 a, right rear swing rod rotating shaft-172, unlocking button-181, push button guiding button-181 a, push button-182 b, left front locking mechanism-150, right locking mechanism-183 b, left pull-handle-cover-102 a, left pull-handle-cover-183 b, and right handle-pull-cover-lock mechanism-cover-183 b;

a front wheel assembly-2, a front wheel-21 and a front wheel joint-22;

rear wheel assembly-3, rear wheel-31 and rear wheel joint-32;

a seat-4, a seat body-41, a seat support upright-42;

a push handle rod-5;

crib-200;

an enclosure frame-6, a left guardrail-61, a left middle enclosing rod-611, a left front enclosing rod-612, a left rear enclosing rod-613, a left middle vertical enclosing rod-614, a left front vertical enclosing rod-615, a left rear vertical enclosing rod-616, a right guardrail-62, a right middle enclosing rod-621, a right front enclosing rod-622, a right rear enclosing rod-623, a right middle vertical enclosing rod-624, a right front vertical enclosing rod-625 and a right rear vertical enclosing rod-626;

a caster-7;

a children sleeping basket-300;

a sleeping basket support-8, a handle-81,

a fluffy rod-9;

a handrail-10;

a connecting piece-11.

Detailed Description

The following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, enables the advantages and features of the invention to be more readily understood by those skilled in the art.

In the description of the present invention, it should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "left-right direction", and the like indicate orientations or positional relationships only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, only have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example one

Referring to fig. 1 and 2, a stroller 100 of the present embodiment includes an extendable and retractable frame 1, two sets of front wheel assemblies 2 disposed on the left and right sides below the front portion of the frame 1, two sets of rear wheel assemblies 3 disposed on the left and right sides below the rear portion of the frame 1, a seat 4 disposed on the frame 1, and a handle bar 5 connected to the frame 1. When the frame 1 is shortened, the stroller 100 has a single-person use state (as shown in fig. 1) for one seat 4 due to the short length and the small space of the frame 1; after the frame 1 is extended, the length of the frame 1 is increased, and the space is increased, so that the stroller 100 has a double-use state (as shown in fig. 2) in which two seats 4 are connected simultaneously, and parents who use the stroller 100 can conveniently select and adjust the stroller according to actual conditions.

Further, referring to fig. 1 to 3, 4 and 12, the vehicle frame 1 includes a telescopic frame including a middle frame 110, a front frame 120, a rear frame 130 and a locking mechanism. The locking mechanism has a locking operation state in which the locking mechanism locks the relative positions between the front frame 120 and the middle frame 110 and between the rear frame 130 and the middle frame 110, and an unlocking operation state; in the unlocked operating state, the front frame 120 and the middle frame 110 and the rear frame 130 and the middle frame 110 are allowed to extend and contract, so that the length of the vehicle frame 1 is extended or shortened.

Further, referring to fig. 3, the middle frame 110 includes a left middle link 111 located at the left side, a right middle link 112 located at the right side, and a tubular middle cross link 113 connected to the left middle link 111 and the right middle link 112 respectively to form a rigid body, the front bottom and the rear bottom of the left middle link 111 of the present embodiment are respectively provided with two locking holes 102, and the front bottom and the rear bottom of the right middle link 112 are also respectively provided with two locking holes 102 (as shown in fig. 14); the left middle connecting rod 111 and the right middle connecting rod 112 are respectively and fixedly connected with a left fixed seat 114 and a right fixed seat 115; the front frame 120 comprises a left front connecting rod 121 positioned at the left side of the frame 1, a right front connecting rod 122 positioned at the right side of the frame 1, and a front transverse connecting rod 123 which is respectively connected with the left front connecting rod 121 and the right front connecting rod 122 to form a rigid integral body; the rear frame 130 includes a left rear link 131 located on the left side of the frame 1, a right rear link 132 located on the right side of the frame 1, and a rear cross link 133 connected to the left rear link 131 and the right rear link 132 respectively to form a rigid body. Specifically, in the present embodiment, the front portion and the rear portion of the left middle link 111 are respectively provided with a waist-shaped hole 116, so that the front portion of the left middle link 111 and the left front link 121 are slidably connected along the length extending direction of the left middle link 111, and the rear portion of the left middle link 111 and the left rear link 131 are slidably connected along the length extending direction of the left middle link 111; the front part and the rear part of the right middle connecting rod 112 are respectively provided with a kidney-shaped hole 116, so that the front part of the right middle connecting rod 112 is in sliding connection with the right front connecting rod 122 along the length extending direction of the right middle connecting rod 112, the rear part of the right middle connecting rod 112 is in sliding connection with the right rear connecting rod 132 along the length extending direction of the right middle connecting rod 112, finally, the front frame 120 and the middle frame 110 can extend and retract, and the rear frame 130 and the middle frame 110 can also extend and retract. In addition, the left middle connecting rod 111 and the right middle connecting rod 112 are both provided with a tube cavity, auxiliary pieces 117 are arranged in the tube cavity of the left middle connecting rod 111 corresponding to the two kidney-shaped holes 116, the auxiliary pieces 117 are also arranged in the tube cavity of the right middle connecting rod 112 corresponding to the two kidney-shaped holes 116, and the arrangement of the auxiliary pieces 117 can ensure that the sliding between the left middle connecting rod 111 and the left front connecting rod 121, between the left middle connecting rod 111 and the left rear connecting rod 131, between the right middle connecting rod 112 and the right front connecting rod 122 and between the right middle connecting rod 112 and the right rear connecting rod 132 is more stable, so that the relative shaking of the frames between the connecting rods in the telescopic process is avoided.

Further, each set of front wheel assemblies 2 comprises a front wheel 21 and a front wheel joint 22, the two front wheel joints 22 are respectively arranged at the end parts of the left front connecting rod 121 and the right front connecting rod 122, and the front wheel 21 is rotatably arranged on the front wheel joint 22; each set of rear wheel assemblies 3 comprises a rear wheel 31 and a rear wheel joint 32, the two rear wheel joints 32 are respectively arranged at the ends of the left rear connecting rod 131 and the right rear connecting rod 132, and the rear wheel 31 is rotatably arranged on the rear wheel joint 32.

Further, referring to fig. 3, 5 to 19, the locking mechanism includes a left front locking mechanism 140, a left rear locking mechanism 150, a right front locking mechanism 160, a right rear locking mechanism 170, and a synchronization link mechanism. The left front locking mechanism 140 and the left rear locking mechanism 150 are both disposed in the left fixing seat 114 and are respectively used for locking the relative position between the left middle connecting rod 111 and the left front connecting rod 121 and the relative position between the left middle connecting rod 111 and the left rear connecting rod 131; the right front locking mechanism 160 and the right rear locking mechanism 170 are disposed in the right fixing seat 115, and are used for locking the relative positions between the right intermediate link 112 and the right front link 122 and between the right intermediate link 112 and the right rear link 132, respectively. The synchronous linkage mechanism is used for synchronously enabling the four locking mechanisms of the left front locking mechanism 140, the left rear locking mechanism 150, the right front locking mechanism 160 and the right rear locking mechanism 170 to be in a locking working state or an unlocking working state.

Specifically, referring to fig. 3 and 3a, the left front locking mechanism 140 includes a left front swing link 141, a middle portion of the left front swing link 141 is pivotally connected to a front portion of the left fixing base 114 through a left front swing link rotating shaft 142, a front end portion of the left front swing link 141 is provided with a locking pin 101, a rear end portion thereof is a left front driving portion 141a, and a plurality of locking holes 102 are distributed on the left front connecting rod 121 along a length direction thereof. The left rear locking mechanism 150 includes a left rear swing link 151, the middle portion of the left rear swing link 151 is pivotally connected to the rear portion of the left fixing base 114 through a left rear swing link rotating shaft 152, the rear end portion of the left rear swing link 151 is provided with a locking pin 101, the front end portion thereof is a left rear driving portion 151a, and a plurality of locking holes 102 are distributed along the length direction of the left rear connecting rod 131. Referring to fig. 3 and 3b, the right front locking mechanism 160 includes a right front swing link 161, a middle portion of the right front swing link 161 is pivotally connected to a front portion of the right fixing base 115 through a right front swing link rotating shaft 162, a front end portion of the right front swing link 161 has a locking pin 101, a rear end portion thereof is a right front driving portion 161a, and a plurality of locking holes 102 are distributed on the right front link 122 along a length direction thereof. The right rear locking mechanism 170 includes a right rear swing link 171, the middle portion of the right rear swing link 171 is pivotally connected to the rear portion of the right fixing seat 115 through a right rear swing link rotating shaft 172, the rear end portion of the right rear swing link 171 is provided with a locking pin 101, the front end portion thereof is a right rear driving portion 171a, and a plurality of locking holes 102 are also distributed on the right rear connecting rod 132 along the length direction thereof. The plurality of locking holes 102 on the left front link 121, the left rear link 131, the right front link 122 and the right rear link 132 are arranged, so that the length of the telescopic frame 1 has more selectivity. When the locking mechanism is in a locking working state, referring to fig. 5 to 8, the locking pin 101 of the left front swing link 141 is inserted into both the locking hole 102 on the left front connecting rod 121 and the locking hole 102 at the front bottom of the left intermediate connecting rod 111, the locking pin 101 of the left rear swing link 151 is inserted into both the locking hole 102 on the left rear connecting rod 131 and the locking hole 102 at the rear bottom of the left intermediate connecting rod 111, the locking pin 101 of the right front swing link 161 is inserted into both the locking hole 102 on the right front connecting rod 122 and the locking hole 102 at the front bottom of the right intermediate connecting rod 112, and the locking pin 101 of the right rear swing link 171 is inserted into both the locking hole 102 on the right rear connecting rod 132 and the locking hole 102 at the rear bottom of the right intermediate connecting rod 112. When the locking mechanism is in an unlocking working state, referring to fig. 13 to 16, the locking pin 101 of the left front swing link 141 is disengaged from the locking hole 102 at the front bottom of the left middle link 111 and the locking hole 102 on the left front link 121, the locking pin 101 of the left rear swing link 151 is disengaged from the locking hole 102 at the rear bottom of the left middle link 111 and the locking hole 102 on the left rear link 131, the locking pin 101 of the right front swing link 161 is disengaged from the locking hole 102 at the front bottom of the right middle link 112 and the locking hole 102 on the right front link 122, and the locking pin 101 of the right rear swing link 171 is disengaged from the locking hole 102 at the rear bottom of the right middle link 112 and the locking hole 102 on the right rear link 132.

Specifically, referring to fig. 3, the synchronization linkage includes an unlock button 181, an unlock knob 182, and left and right synchronization links 183 located inside the tubular intermediate cross link 113, both ends of the left and right synchronization links 183 being rigidly connected to the unlock button 181 and the unlock knob 182, respectively, as one body (as shown in fig. 11 and 19). The unlocking button 181 is provided with a button guide inclined plane 181a, and the unlocking handle 182 is provided with a handle guide inclined plane 182a. The unlocking button 181 can be slidably disposed in the left fixing seat 114, and the unlocking handle 182 is slidably disposed in the right fixing seat 115; alternatively, the unlock button 181 is slidably disposed in the right fixing base 115, and the unlock handle 182 is slidably disposed in the left fixing base 114. In this embodiment, the unlocking button 181 is slidably disposed in the left fixing seat 114 in the left-right direction, the unlocking handle 182 is slidably disposed in the right fixing seat 115 in the left-right direction, and the unlocking button 181 is covered with a button cover 181b, and the unlocking handle 182 is covered with a handle cover 182b, so that the internal components can be protected, and dust can be prevented from falling. The button guide slope 181a is inclined with respect to the sliding direction of the unlock button 181, the handle guide slope 182a is inclined with respect to the sliding direction of the handle, and the button guide slope 181a and the handle guide slope 182a are inclined in the same direction. Referring to fig. 6, 8 to 10, 14, 16 to 18, when the frame needs to be extended or retracted, the locking mechanism needs to be unlocked first, the unlocking button 181 needs to be pressed, so that the unlocking button 181 slides relative to the left fixing seat 114, and the unlocking handle 182 is driven by the left and right synchronization connecting rods 183 to slide relative to the right fixing seat 115; or the unlocking handle 182 is pulled to enable the unlocking handle 182 to slide relative to the right fixed seat 115, the unlocking button 181 is driven to slide relative to the left fixed seat 114 through the left-right synchronous connecting rod 183, and in the unlocking process, the left front driving part 141a of the left front swing rod 141 and the left rear driving part 151a of the left rear swing rod 151 are respectively contacted with the button guide inclined plane 181a, so that the left front swing rod 141 and the left rear swing rod 151 are driven to rotate, the locking pin 101 of the left front swing rod 141 is separated from the locking hole 102 at the front bottom of the left middle connecting rod 111 and the locking hole 102 on the left front connecting rod 121, and the locking pin 101 of the left rear swing rod 151 is separated from the locking hole 102 at the rear bottom of the left middle connecting rod 111 and the locking hole 102 on the left rear connecting rod 131; meanwhile, the right front driving portion 161a of the right front swing link 161 and the right rear driving portion 171a of the right rear swing link 171 are also in contact with the handle guide inclined surface 182a, respectively, and further the right front swing link 161 and the right rear swing link 171 are driven to rotate, so that the locking pin 101 of the right front swing link 161 is disengaged from the locking hole 102 at the front bottom of the right intermediate link 112 and the locking hole 102 on the right front link 122, and the locking pin 101 of the right rear swing link 171 is disengaged from the locking hole 102 at the rear bottom of the right intermediate link 112 and the locking hole 102 on the right rear link 132, so that the left front locking mechanism 140, the left rear locking mechanism 150, the right front locking mechanism 160 and the right rear locking mechanism 170 are synchronously switched from the locking working state to the unlocking working state.

Further, referring to fig. 1 and 2, the seat 4 includes a seat body 41 and seat support uprights 42 provided on both left and right sides of the seat body 41, and the seat body 41 is connected to the two seat support uprights 42. The length of the frame 1 of the child stroller 100 in the single use state and the double use state is different, the length of the frame 1 in the double use state is longer, the space is larger, two seats 4 are convenient to install simultaneously, and two children can be seated. When two seats 4 need to be installed, the unlocking button 181 is pressed or the unlocking handle 182 is pulled, the locking mechanism is unlocked, the front frame 120 and the rear frame 130 are pulled, the length of the frame 1 is lengthened to accommodate the next two seats 4, the lower end parts of the two seat supporting upright stanchions 42 on one seat 4 are respectively detachably connected with the left front connecting rod 121 and the right front connecting rod 122, and the lower end parts of the two supporting upright stanchions on the other seat 4 are detachably connected with the left rear connecting rod 131 and the right rear connecting rod 132. The frame 1 in the single use state has shorter length and smaller space, only one seat 4 can be installed, and at the moment, the lower end parts of two seat supporting upright stanchions 42 on one seat 4 are respectively detachably connected with a left middle connecting rod 111 and a right middle connecting rod 112.

In summary, when the stroller 100 of the embodiment is switched between the single-person use state and the double-person use state, the locking mechanism of the frame can be unlocked and the frame can be extended or shortened only by pressing the unlocking button 181 on one side of the telescopic frame or pulling the unlocking handle 182, so that the unlocking is simple and rapid, and the stroller is convenient to use.

Example two

Referring to fig. 20 and 21, a child's bed 200 of the present embodiment includes a bed board, a surrounding frame 6 disposed around the bed board, and casters 7 disposed at the bottom of the surrounding frame 6.

Further, the enclosure frame 6 includes a telescopic frame and a guardrail disposed on the upper portion of the frame, and the specific structure of the frame is substantially the same as that of the frame in the first embodiment, and therefore, the detailed description thereof is omitted. The guard rails include a left guard rail 61 located on the left side of the enclosure frame 6 and a right guard rail 62 located on the right side of the enclosure frame 6. Specifically, left guard rail 61 includes left middle surrounding rod 611, left front surrounding rod 612 and left rear surrounding rod 613, the front portion of left middle surrounding rod 611 is slidably connected with left front surrounding rod 612 along the length extension direction of left middle surrounding rod 611, and the rear portion of left middle surrounding rod 611 is slidably connected with left rear surrounding rod 613 along the length extension direction of left middle surrounding rod 611; the right guard rail 62 includes a right middle rail 621, a right front rail 622, and a right rear rail 623, the front portion of the right middle rail 621 being slidably connected to the right front rail 622 along the longitudinal extension direction of the right middle rail 621, and the rear portion of the right middle rail 621 being slidably connected to the right rear rail 623 along the longitudinal extension direction of the right middle rail 621. The length extension direction of the left middle surrounding rod 611 is parallel to the length extension direction of the left middle connecting rod 111, and the length extension direction of the right middle surrounding rod 621 is parallel to the length extension direction of the right middle connecting rod 112.

Further, the left guard rail 61 further comprises a left middle vertical surrounding rod 614 for connecting the left middle surrounding rod 611 and the left middle connecting rod 111 to form a rigid body, a left front vertical surrounding rod 615 for connecting the left front surrounding rod 612 and the left front connecting rod 121 to form a rigid body, and a left rear vertical surrounding rod 616 for connecting the left rear surrounding rod 613 and the left rear connecting rod 131 to form a rigid body; similarly, the right guard rail 62 further includes a right middle upright rail 624 for connecting the right middle rail 621 and the right middle link 112 to form a rigid body, a right front upright rail 625 for connecting the right front rail 622 and the right front link 122 to form a rigid body, and a right rear upright rail 626 for connecting the right rear rail 623 and the right rear link 132 to form a rigid body. Pressing the unlock button 181 or pulling the unlock handle 182 unlocks the lock mechanism so that the left front link 121 and the left rear link 131 can slide relative to the left middle link 111, the right front link 122 and the right rear link 132 can slide relative to the right middle link 112, the left front enclosing rod 612 and the left rear enclosing rod 613 can synchronously slide relative to the left middle enclosing rod 611 by the driving action of the left front vertical enclosing rod 615 and the left rear vertical enclosing rod 616, the sliding direction of the left front enclosing rod 612 is the same as that of the left front link 121, and the sliding direction of the left rear enclosing rod 613 is the same as that of the left rear link 131; meanwhile, the right front surrounding bar 622 and the right rear surrounding bar 623 can synchronously slide relative to the right middle surrounding bar 621 through the driving action of the right front vertical surrounding bar 625 and the right rear vertical surrounding bar 626, and the sliding direction of the right front surrounding bar 622 is the same as that of the right front link 122, and the sliding direction of the right rear surrounding bar 623 is the same as that of the right rear link 132. Thereby adjusting the length of the child bed 200 to be suitable for children of different heights.

In summary, after the frame of the child bed 200 of the present embodiment is extended or shortened, the actual length of the child bed 200 can be increased or shortened, so that the child bed is suitable for children with different heights, and the service life of the child bed 200 can be prolonged; the unlocking operation of the child bed 200 enclosure frame 6 is simple and quick, a large number of unlocking components are not needed, the unlocking sequence with complicated steps is not needed, and the use is convenient.

EXAMPLE III

Referring to fig. 22 and 23, the children sleeping basket 300 of the present embodiment includes a sleeping basket frame 8, a cloth cover wrapped on the sleeping basket frame 8, a canopy rod 9 rotatably connected to the sleeping basket frame 8, an armrest 10 detachably connected to the sleeping basket frame 8, and a connecting member 11 rotatably connected to the sleeping basket frame 8 and used for detachably connecting the children sleeping basket 300 to a frame of a stroller.

Further, the sleeping basket frame 8 comprises a telescopic frame, the specific structure of the frame is basically the same as that of the frame in the first embodiment, except that the middle cross connecting rod 113 of the first embodiment is arranged into a U shape so as not to influence the wrapping of the cloth cover, and the child can lie in the sleeping basket. In addition, a handle 81 is further arranged in the middle of the rear transverse connecting rod 133, so that parents can conveniently adjust the angle of the sleeping basket on the frame of the trolley.

In summary, after the child sleeping basket 300 of the present embodiment is extended or shortened by the frame, the actual length of the child sleeping basket 300 can be increased or shortened, and the child sleeping basket is suitable for children with different heights; because the setting of the frame of this embodiment for when lengthening or shortening sleeping basket support 8, its unblock easy operation is quick, parent's convenient to use.

The above embodiments are only for illustrating the technical concept 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 the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A telescopic frame comprises a middle frame and a front frame;

the rear frame comprises a left rear connecting rod positioned on the left side, a right rear connecting rod positioned on the right side and a rear transverse connecting rod which is respectively connected with the left rear connecting rod and the right rear connecting rod to form a rigid whole; the front part of the left middle connecting rod is connected with the left front connecting rod in a sliding manner along the length extension direction of the left middle connecting rod, and the front part of the right middle connecting rod is connected with the right front connecting rod in a sliding manner along the length extension direction of the right middle connecting rod, so that the front frame and the middle frame can be stretched and contracted; the rear part of the left middle connecting rod is connected with the left rear connecting rod in a sliding manner along the length extending direction of the left middle connecting rod, and the rear part of the right middle connecting rod is connected with the right rear connecting rod in a sliding manner along the length extending direction of the right middle connecting rod, so that the rear frame and the middle frame can be stretched;

the left front locking mechanism is used for locking the relative position between the left middle connecting rod and the left front connecting rod and is arranged in the left fixed seat;

the left rear locking mechanism is used for locking the relative position between the left middle connecting rod and the left rear connecting rod, and is arranged in the left fixed seat;

2. The telescoping frame of claim 1, wherein: the left front locking mechanism comprises a left front swing rod, the middle part of the left front swing rod is connected with the front part of the left fixed seat through a left front swing rod rotating shaft pivot, the front end part of the left front swing rod is provided with a locking pin, the rear end part of the left front swing rod is a driving part, a plurality of locking holes are distributed on the left front connecting rod along the length direction of the left front connecting rod, the left middle connecting rod is also provided with a locking hole, and the locking pin is inserted into one locking hole on the left front connecting rod and the locking hole on the left middle connecting rod when the left front locking mechanism is in a locking working state; when the left front locking mechanism is in an unlocking working state, the locking pin is separated from the locking hole on the left front connecting rod.

3. The telescoping frame of claim 2, wherein: the left rear locking mechanism comprises a left rear swing rod, the middle part of the left rear swing rod is connected with the rear part of the left fixed seat through a left rear swing rod rotating shaft pivot, the rear end part of the left rear swing rod is provided with a locking pin, the front end part of the left rear swing rod is a driving part, a plurality of locking holes are distributed on the left rear connecting rod along the length direction of the left rear connecting rod, the left middle connecting rod is also provided with a locking hole, and the locking pin is inserted into one locking hole on the left rear connecting rod and the locking hole on the left middle connecting rod when the left rear locking mechanism is in a locking working state; when the left rear locking mechanism is in an unlocking working state, the locking pin is separated from the locking hole on the left rear connecting rod.

4. The telescoping frame of claim 3, wherein: the right front locking mechanism comprises a right front swing rod, the middle part of the right front swing rod is connected with the front part of the right fixed seat through a right front swing rod rotating shaft pivot, the front end part of the right front swing rod is provided with a locking pin, the rear end part of the right front swing rod is a driving part, a plurality of locking holes are distributed on the right front connecting rod along the length direction of the right front connecting rod, the right middle connecting rod is also provided with a locking hole, and the locking pin is inserted into one locking hole on the right front connecting rod and the locking hole on the right middle connecting rod when the right front locking mechanism is in a locking working state; when the right front locking mechanism is in an unlocking working state, the locking pin is separated from the locking hole on the right front connecting rod.

5. The telescoping frame of claim 4, wherein: the right rear locking mechanism comprises a right rear swing rod, the middle part of the right rear swing rod is connected to the rear part of the right fixed seat through a right rear swing rod rotating shaft pivot, the rear end part of the right rear swing rod is provided with a locking pin, the front end part of the right rear swing rod is a driving part, a plurality of locking holes are distributed on the right rear connecting rod along the length direction of the right rear connecting rod, the right middle connecting rod is also provided with a locking hole, and the locking pin is inserted into one locking hole on the right rear connecting rod and the locking hole on the right middle connecting rod when the right rear locking mechanism is in a locking working state; when the right rear locking mechanism is in an unlocking working state, the locking pin is separated from the locking hole on the right rear connecting rod.

6. The telescoping frame of claim 5, wherein: the synchronous linkage mechanism comprises a synchronous linkage mechanism and a synchronous linkage mechanism,

7. The telescoping frame of claim 6, wherein: the unlocking button set up in left fixing base along left and right sides direction with sliding, the unblock handle set up in right fixing base along left and right sides direction with sliding, the left and right sides synchronous connecting rod with the unlocking button the unblock handle connect as an organic wholely rigidly.

8. The telescoping frame of claim 5, wherein: the synchronous linkage mechanism comprises a synchronous linkage mechanism and a synchronous linkage mechanism,

9. The telescoping frame of claim 8, wherein: the unlocking button set up in right side fixing base along left-right direction with sliding, the unblock handle set up in left side fixing base along left-right direction with sliding, left-right synchronization connecting rod with the unlocking button the unblock handle connect as an organic wholely rigidly.

10. The telescopic frame of claim 6 or 8, wherein: the middle transverse connecting rod is tubular, and the left and right synchronous connecting rods are positioned in the middle transverse connecting rod.

11. The telescoping frame of claim 6 or 8, wherein: the button guide inclined plane is inclined relative to the sliding direction of the unlocking button, the handle guide inclined plane is inclined relative to the sliding direction of the handle, and the button guide inclined plane and the handle guide inclined plane are inclined in the same direction.

12. A stroller, characterized in that: comprising a telescopic frame according to any of claims 1-11.

13. A child bed is characterized in that: comprising a telescopic frame according to any one of claims 1-11.

14. A children sleeping basket is characterized in that: comprising a telescopic frame according to any of claims 1-11.