CN104257165B - Stay bar linkage mechanism suitable for travel bed and travel bed - Google Patents

Abstract

The invention relates to a linking mechanism of a support bar, which comprises a bottom support bar, a locking connection mechanism, and a fixed seat rotatably connected with the bottom support bar. The locking connection mechanism includes a connecting seat connected to the bottom support bar and a locking device. The seat is rotatably connected, the connecting seat includes an upper chassis and a lower chassis, and the bottom brace is rotatably connected with the upper chassis, and the locking connection mechanism also includes a connecting rod that is rotatably connected with the lower chassis and the bottom brace. The travel cot includes a pole linkage mechanism, a pole connected to the fixed seat, an upper pole connected to the pole, a top pole that can move in the up and down direction, a pole pole, and the pole is supported on the bottom pole And it is rotatably connected with the push rod, and the push rod strut is rotatably connected with the upper support rod. When the present invention is folded, the strut linkage mechanism will drive all the bottom struts of the bed to move simultaneously, and drive the vertical poles and upper struts in multiple directions on the bed frame to fold and open at the same time. The design is reasonable, the structure is simple, and the operation Convenience.

Description

Strut linkage mechanism suitable for travel cot and travel cot

technical field

The invention relates to the field of children's products, in particular to a strut linkage mechanism suitable for a travel cot and the travel cot.

Background technique

In the prior art, a foldable travel bed includes a foldable bed frame. The bed frame mainly includes a bottom support rod, a vertical rod connected to the bottom support rod at one end, and a surrounding frame connected to the other end of the vertical rod. Usually, the bottom brace and the surrounding frame are folded to make the entire bed frame foldable, and the foldable bottom brace and the surrounding frame respectively have a locking mechanism in the unfolded position, so the bottom brace and the surrounding frame need to be adjusted respectively. The locking mechanism is unlocked, allowing the bottom stay and surround to be folded to complete the fold of the entire bed frame; the same is true for unfolding. On the one hand, the structure of unlocking or locking respectively makes the structure of the travel cot cumbersome, and on the other hand, it is very inconvenient for the user to operate.

Contents of the invention

An object of the present invention is to provide a strut linkage mechanism suitable for a travel cot.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A strut linkage mechanism suitable for a travel cot, comprising a plurality of bottom struts, a locking connection mechanism for locking and connecting one end of the multiple bottom struts, The other end is rotatably connected to the fixed seat,

The locking connection mechanism includes connecting seats for respectively connecting the plurality of bottom braces, and the connecting seats include an upper chassis and a lower chassis slidably arranged in the upper chassis along the up-down direction. A locking device that can be locked with each other is provided between the upper and lower chassis, one end of the bottom brace is rotatably connected to the upper chassis, and the locking connection mechanism also includes two ends respectively connected to the The lower chassis is a connecting rod that is rotatably connected to the bottom support rod.

Preferably, the locking device includes an unlocking handle rotatably connected to the upper chassis, the unlocking handle has a hook capable of hooking the lower chassis, when the locking device is in a locked state, the The hook hooks the lower chassis; when the locking device is in an unlocked state, the hook is disengaged from the lower chassis, and the lower chassis slides relative to the upper chassis.

Further preferably, the lower chassis is provided with a clamping post or a clamping hole, and the clamping hook can be hooked on the clamping post or hooked into the clamping hole.

Preferably, the upper chassis is provided with a limiting portion that only allows the bottom brace to rotate downward.

Preferably, there are four bottom braces.

Another object of the present invention is to provide a travel cot.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A travel cot, comprising the above-mentioned strut linkage mechanism, a vertical pole whose lower end is fixedly connected to the fixing seat of the said strut linkage mechanism, and multiple poles connected to the upper end of the vertical pole to form a surrounding frame. The upper support rod, the travel cot also includes a plurality of push rods movable in the up and down direction, and a plurality of push rod stays, the lower ends of the push rods are supported on the bottom support rods, and the top rods are supported on the bottom support rods. One end of the rod strut is rotatably connected to the upper end of the push rod, and the other end is rotatably connected to the upper strut.

Preferably, the ends of two adjacent upper struts are rotatably connected through a first connecting piece fixed on the vertical pole, and each of the upper struts includes an end through a second connecting piece The first connecting rod and the second connecting rod are rotatably connected, and the other end of the push rod brace is respectively rotatably connected to the first connecting rod and the second connecting rod.

Further preferably, the surrounding frame further includes a first locking mechanism for locking each of the first and second connecting rods relative to each other, and an unlocking device for unlocking each of the first locking mechanisms. , one end of the unlocking device is connected to the first locking mechanism, and the other end is connected to the bottom support rod.

Further preferably, the first connecting rod includes a first upper rod and a first lower rod arranged in parallel up and down, and the second connecting rod includes a second upper rod and a second lower rod arranged in parallel up and down. The first locking mechanism is respectively used to relatively lock each of the first upper rod and the second upper rod, and the other end of the push rod stay is respectively connected to the first lower rod and the second lower rod. Turn to connect.

Preferably, the push rod is connected to the vertical rod through a plurality of fixing sleeves.

Due to the use of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art:

The invention realizes that when the bed frame is folded, the strut linkage mechanism will drive all the bottom struts of the bed to move at the same time, and drive the vertical poles and upper struts in multiple directions on the bed frame to fold and open at the same time. The design is reasonable, The structure is simple and the operation is convenient; when used on a travel cot, the folding of the travel cot is easier and more convenient.

Description of drawings

Accompanying drawing 1 is the open state schematic diagram of travel cot among the present invention;

Accompanying drawing 2 is the front view of travel cot among the present invention;

Accompanying drawing 3 a is the open state schematic diagram of locking connection mechanism in the present invention;

Accompanying drawing 3b is the schematic diagram of the semi-folded state of the locking connection mechanism in the present invention;

Accompanying drawing 3c is the schematic diagram of the folded state of the locking connection mechanism in the present invention;

Accompanying drawing 3 d is the sectional view of the open state of the locking connection mechanism in the present invention;

Accompanying drawing 3 e is the sectional view of the semi-folded state of the locking connection mechanism in the present invention;

Accompanying drawing 3 f is the folded state sectional view of locking connection mechanism in the present invention;

Accompanying drawing 4 is the schematic diagram of the half-folded state of travel cot in the present invention;

Accompanying drawing 5 is the schematic diagram of the folded state of the travel cot in the present invention.

Among them: 1. Bottom support rod; 2. Locking connection mechanism; 20. Connecting seat; 200. Upper chassis; 201. Lower chassis; 202. Unlocking handle; 203. Limiting part; 21. Connecting rod; 3. Fixing seat; 4. Upright rod; 5. Upper strut; 50. First connecting rod; 500. First upper rod; 501. First lower rod; 51. Second connecting rod; 510. Second upper rod; 511. Second 6. Push rod; 60. Fixing sleeve; 7. Push rod stay; 8. First connecting piece; 9. Second connecting piece.

detailed description

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

A travel cot as shown in Figures 1, 2, 4, and 5 includes a rectangular bed frame and a strut link mechanism that drives the bed frame to open or fold. The strut linkage mechanism specifically includes four bottom struts 1, a locking connection mechanism 2 for locking and connecting one end of the four bottom struts 1, and is rotationally connected with the other end of each bottom strut 1 through a shaft d. The fixed seat 3, the lower end fixedly connected to the vertical rod 4 on the fixed seat 3 and the four upper struts 5 connected to the upper end of the vertical rod 4 to form a surrounding frame.

The following is a detailed introduction to each component:

As shown in Figures 3a-3f: the locking connection mechanism 2 includes a connecting seat 20 and a locking device for respectively connecting four bottom struts 1, and one end of the bottom strut 1 is rotatably connected to the connecting seat 20, respectively. Specifically, the connecting base 20 includes an upper chassis 200, and a lower chassis 201 slidably arranged in the upper chassis 200 along the up-down direction. One end of the bottom support rod 1 is rotationally connected with the upper chassis 200 through the axis b, and the locking connection mechanism 2 also includes a connecting rod 21 whose one end is rotatably connected to the lower chassis 201 through the axis c1, and whose other end is rotatably connected to the bottom brace 1 through the axis c2.

The locking device is used to lock the upper chassis 200 and the lower chassis 201, wherein the lower chassis 201 approaches or moves away from the upper chassis 200 along the vertical direction, and the distance between the upper and lower chassis 200, 201 is the smallest when the upper and lower chassis 200, 201 are locked. The locking device includes an unlocking handle 202 that is rotatably connected to the upper chassis 200 through an axis a, and the unlocking handle 202 has a hook capable of hooking the lower chassis 201. The specific structure may be: the lower chassis 201 is provided with a locking post or a locking hole , the hook is locked by hooking the post or hooking in the hole, and other implementation methods are also available.

The strut linkage mechanism also includes a plurality of push rods 6 and a plurality of push rod struts 7 that are connected to the vertical rod 4 through a plurality of fixed sleeves 60 and can move in the up and down direction, and the lower ends of the push rods 6 are supported on the bottom struts. 1, the upper end of a push rod 6 is rotatably connected to one end of two push rod struts 7 at the same time through the shaft j and the shaft l.

The surrounding frame is described in detail below: each upper strut 5 includes a first connecting rod 50 and a second connecting rod 51, wherein: the first connecting rod 50 includes a first upper rod 500 and a first lower rod arranged in parallel up and down. 501, the second connecting rod 51 includes a second upper rod 510 and a second lower rod 511 arranged in parallel up and down. One end of the first upper rod 500 and the first lower rod 501 is rotatably connected with the first connecting piece 8 fixed on the vertical rod 4 through the shaft e and the shaft f, and one end of the second upper rod 510 and the second lower rod 511 The other end of the first upper rod 500 and the first lower rod 501 are rotatably connected with the second connecting member 9 through the shaft m and the shaft o. The other ends of the two upper rods 510 and the second lower rod 511 are also rotatably connected with the second connecting member 9 through the shaft n and the shaft p; The first lower rod 501 and the second lower rod 511 are respectively rotatably connected through the axis i and the axis k.

The surrounding frame also includes a first locking mechanism for relatively locking the first upper rod 500 and the second upper rod 510 respectively, an unlocking device for unlocking each first locking mechanism, and one end of the unlocking device is connected to the first locking mechanism. connected with each other, and the other end is connected with the bottom brace 1. The first locking mechanism is arranged in the second connecting piece 9, and its structure can be the cooperation of the dead bolt and the lock groove.

When the locking device is in the locked state, the hook hooks the lower chassis 201, and the entire bed frame is in an open state, as shown in FIG. 1 .

Lift the unlocking handle 202 upwards, the hook on the unlocking handle 202 is disengaged from the lower chassis 201 to unlock, and the entire connecting seat 20 drives one end of the four bottom struts 1 to move upwards. It will rotate downward around the axis b. At the same time, the lower chassis 201 is driven to slide downward in the upper chassis 200 through the connecting rod 21. The four directions of the upper chassis 200 and the lower chassis 201 are all in the same way (through the connecting rod 21 and the bottom The support rod 1) is connected, so when the connecting seat 20 moves up and down, the four bottom support rods 1 will be in a linked state; continue to lift the unlocking handle 202 upward, and one end of the bottom support rod 1 will move closer to the vertical rod 4 around the axis d Folding, after the bottom support bar 1 supported by the bottom of the top bar 6 is rotated, the support is removed; at the same time, the bottom support bar 1 pulls the unlocking device to unlock the first locking mechanism, the first upper bar 500, the first lower bar 501 and the second upper bar 510 1. The second lower rod 511 rotates around the axes e, f, g, and h due to its own weight, and folds closer to the vertical rod 7, and the push rod 6 slides downward by gravity, as shown in FIG. 4 . The four corners of the bed frame are all in the same principle, and through the linkage mechanism of the struts, the directions of the four corners of the bed frame will be folded at the same time, and finally the entire bed frame can be folded to the state shown in Figure 5.

When it is necessary to open the bed frame, press down the connecting seat 20 until the bottom support rod 1 moves to a horizontal position, the lower chassis 201 slides upward due to the drive of the connecting rod 21 and is stuck on the hook of the unlocking handle 201, and the four bottom support rods The other end of 1 is separated from the vertical rod 4 around the axis d, and the bottom support rod 1 withstands the lower end surface of the push rod 6, the push rod 6 moves upward, and the upper support rod 5 is pushed upward by the push rod support 7 to lock the first locking mechanism , continue to press down the connecting seat 20 so that it crosses the horizontal line q of the bottom brace 1, and finally the connecting seat 20 is below the horizontal line q of the bottom brace 1, and the bottom brace 1 is limited by the upper chassis 200, so that the bottom brace The rod 1 can only move to a certain angle, and finally it is in the open state shown in Fig. 1 .

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (9)

1. A travel cot, characterized in that: it comprises a strut linkage mechanism, and the strut linkage mechanism includes a plurality of bottom struts, a locking mechanism for locking and connecting one end of the plurality of bottom struts. The connection mechanism, the fixed seat that is rotatably connected to the other end of each of the bottom braces, the locking connection mechanism includes a connection seat for connecting the plurality of bottom braces respectively, and the connection seat It includes an upper chassis and a lower chassis that is slidably arranged in the upper chassis along the up and down direction, a locking device that can be locked with each other is provided between the upper and lower chassis, and one end of the bottom support bar is connected to the The upper chassis is rotatably connected, and the locking connection mechanism also includes a connecting rod whose two ends are rotatably connected to the lower chassis and the bottom support rod respectively, The travel cot also includes a vertical pole whose lower end is fixedly connected to the fixing seat of the pole linkage mechanism, and a plurality of upper poles connected to the upper end of the vertical pole to form a surrounding frame. The bed also includes a plurality of push rods capable of moving up and down, and a plurality of push rod stays, the lower ends of the push rods are supported on the bottom stay rods, and one end of the push rod stays is connected to the bottom stay rods. The upper end of the push rod is rotatably connected, and the other end is rotatably connected with the upper support rod. 2. The travel cot according to claim 1, characterized in that: the ends of two adjacent upper struts are rotatably connected by a first connecting piece fixed on the uprights, and each of the The above-mentioned upper strut includes a first connecting rod and a second connecting rod whose ends are rotatably connected by a second connecting piece, and the other end of the said push-rod strut is connected to the first connecting rod, the second connecting rod respectively. The connecting rods are connected in rotation. 3. The travel cot according to claim 2, wherein the surrounding frame further comprises a first locking mechanism for locking the first connecting rod and the second connecting rod relative to each other, for An unlocking device for unlocking each of the first locking mechanisms, one end of the unlocking device is connected to the first locking mechanism, and the other end is connected to the bottom support rod. 4. The travel cot according to claim 3, characterized in that: the first connecting rod includes a first upper rod and a first lower rod arranged in parallel up and down, and the second connecting rod includes a first upper rod and a first lower rod arranged in parallel up and down. Two upper rods and second lower rods, the first locking mechanism is respectively used to lock the first upper rod and the second upper rod relative to each other, and the other end of the push rod strut is respectively connected to the The first lower rod and the second lower rod described above are rotationally connected. 5. The travel cot according to claim 1, characterized in that: the push rod is connected to the upright rod through a plurality of fixing sleeves. 6. The travel cot according to claim 1, wherein the locking device comprises an unlocking handle rotatably connected to the upper chassis, and the unlocking handle has a clip capable of hooking the lower chassis hook, when the locking device is in the locked state, the hook hooks the lower chassis; when the locking device is in the unlocked state, the hook is disengaged from the lower chassis, and the lower chassis The chassis slides relative to the upper chassis. 7. The travel cot according to claim 6, characterized in that: the lower chassis is provided with a clamping post or a clamping hole, and the clamping hook can hook the clamping column or the clamping hole Inside. 8. The travel cot according to claim 1, characterized in that: the upper chassis is provided with a limiting portion that only allows the bottom support rod to rotate downward. 9. The travel cot according to claim 1, characterized in that there are four bottom braces.