CN104323625A - Travel bed - Google Patents

Abstract

The invention relates to a travel cot, which comprises a bottom bracket, an upper frame, a vertical rod, and a fixing seat. The first and second connecting rods connected by the two connecting parts, the second surrounding rod includes the third and fourth connecting rods connected with the third connecting part, and the upper surrounding frame mechanism also includes locking the first and second connecting rods The first locking device, the second locking device that locks the third and fourth connecting rods, the first and second locking devices are linked by a traction cable, when one of the first or second locking devices is unlocked, The other locking device is unlocked at the same time and the pole remains straight. In the present invention, by unlocking the second connecting piece on the surrounding bar, the third connecting piece in at least one other direction can be unlocked at the same time, thereby completing the folding of the surrounding frame, and the bottom bar and the bottom bracket are synchronously folded through the push rod mechanism on the vertical bar, The operation is simple, easy and convenient, and the bed frame can be folded quickly.

Description

travel cot

technical field

The invention relates to the field of children's products, in particular to a travel cot.

Background technique

In the prior art, a foldable travel bed includes a foldable bed frame. The bed frame mainly includes a bottom bracket, a surrounding frame and a vertical rod supported between the bottom bracket and the surrounding frame, and the bottom bracket and the surrounding frame are folded. , so that the entire bed frame is folded, and the foldable bottom bracket and the surrounding frame have locking mechanisms for them in the unfolded position, wherein the locking mechanism of the bottom bracket is located at its center position, and the locking mechanism of the surrounding frame is located at the surrounding rod of the surrounding frame Above, unlock the locking mechanism of the surrounding frame by operating the locking mechanism in the center of the bottom bracket to unlock, thereby folding the bottom bracket and the surrounding frame, and then completing the folding of the entire bed frame; the same is true for the unfolding method. 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

The 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, which has an unfolded state and a folded state, comprising a bottom bracket, an upper frame, a plurality of uprights arranged between the bottom bracket and the upper frame, and respectively arranged at the lower ends of the plurality of uprights part of the fixing seat, the bottom bracket includes a plurality of bottom rods, a connecting seat that is rotatably connected to one end of the plurality of bottom rods, and the other end of the bottom rod is connected to the fixing seat,

The upper surrounding frame includes a first surrounding rod and a second surrounding rod whose ends are respectively rotatably connected to the first connecting piece, and the upper end of the vertical rod is fixedly connected to the first connecting piece, and the The first surrounding rod includes a first connecting rod and a second connecting rod whose ends are rotatably connected by a second connecting piece, and the second surrounding rod includes a third connecting rod whose one end is rotatably connected by a third connecting member and the fourth connecting rod, the upper frame also includes a first locking device for relatively locking the first connecting rod and the second connecting rod, and relatively locking the third connecting rod and the fourth connecting rod The second locking device, the first locking device is arranged on the second connecting member, the second locking device is arranged on the third connecting member, the first locking device and The second locking device is linked by a drag cable. When folding, when one of the first locking device or the second locking device is unlocked, the other locking device is simultaneously unlocked. Press down on the upper frame to make the The connecting seat moves upwards, the upper frame, the uprights and the bottom bars of the travel cot move closer to each other, and the uprights all keep moving upright during the process of unfolding and folding the travel cot.

Preferably, the first locking device includes a first locking unit for locking the first connecting rod, the second connecting rod and the second connecting piece respectively and for making the first locking The first unlocking unit for unit unlocking, the second locking device includes a second locking unit for locking the third connecting rod, the fourth connecting rod and the third connecting piece respectively and for making the The second unlocking unit unlocked by the second locking unit described above, the two ends of the traction rope are respectively connected to the first unlocking unit and the second unlocking unit, when the first unlocking unit performs the unlocking operation, The first locking unit and the second locking unit are simultaneously unlocked.

Preferably, the first locking unit includes a first locking tongue fixed on the one end of the first connecting rod and the second connecting rod, and is disposed on the first locking tongue so as to be slidable in the horizontal direction. The first pin on the two connectors, when the first locking unit is locked, the first pin abuts against the lower part of the first lock tongue;

The second locking unit includes a second locking tongue fixed on the one end of the third connecting rod and the fourth connecting rod, and is slidably arranged on the third connecting piece in the horizontal direction. When the second locking unit is locked, the second pin abuts against the lower part of the second lock tongue.

Further preferably, the first unlocking unit includes an unlocking handle that is slidably arranged on the second connecting member along the up and down direction, and the opposite sides of the unlocking handle are respectively provided with chute extending along the up and down direction, The opposite sides of the second connecting piece are respectively provided with horizontal slots extending in the horizontal direction, and the first pin is set through the horizontal slots and the inclined slots and can slide along the horizontal slots and the inclined slots; One end of the pulling rope is connected to the unlocking handle.

Further preferably, when the first locking unit is locked, the first pin is located at the outer end of the horizontal groove and the upper end of the chute; when the first locking unit is unlocked, the first pin is The pin is located at the inner end of the horizontal groove and the lower end of the inclined groove.

Further preferably, the second unlocking unit includes unlocking pull blocks that are slidably arranged on the third connecting member in the up and down direction, respectively located on opposite sides of the unlocking pull block and connected to the first unlocking block. The three connecting parts are rotatably connected to the locking block through the rotating shaft, the second pin is fixed on the upper part of the locking block; the opposite sides of the unlocking pull block have sliding slopes under the rotating shaft, respectively, The lower part of the locking block abuts against the sliding slope, and there is an elastic member between the opposite sides of the unlocking block and above the rotating shaft; one end of the pulling rope is connected to the to unlock the pull block.

Further preferably, both sides of the third connecting piece are respectively provided with arc-shaped sliding slots, the second pin passes through the sliding slots and can slide along the sliding slots, when the second locking pin When the unit is locked, the second pin is located at the outer end of the chute, and the lower part of the locking block is against the lower part of the sliding slope; when the second locking unit is unlocked, the The second pin is located at the inner end of the chute, and the lower part of the locking block is against the upper part of the sliding slope.

Preferably, the first connecting rod includes a first upper rod and a first lower rod arranged in parallel up and down, the second connecting rod includes a second upper rod and a second lower rod arranged in parallel up and down, and the first locking device The first upper rod and the second upper rod are relatively locked; the third connecting rod includes the third upper rod and the third lower rod arranged in parallel up and down, and the fourth connecting rod includes the fourth upper rod and the fourth upper rod arranged in parallel up and down. The lower rod, the second locking device relatively locks the third upper rod and the fourth upper rod.

Further preferably, the travel cot further includes a cam assembly arranged on each of the fixed seats, extending the push rod along the height direction of the travel cot, and is used to connect the push rod to the first enclosure respectively. The rod is connected to the two push rod braces of the second surrounding rod, and the cam assembly includes a push rod protrusion fixedly connected with the bottom of the push rod, and fixedly connected with the other end of the bottom rod And the bottom rod recessed part which is rotatably connected with the fixed seat, the said ejector rod protruding part is accommodated in the described bottom rod recessed part, the upper end of the described ejector rod and the two ejector rods The lower ends of the struts are rotatably connected, and the upper ends of the two push rods are respectively rotatably connected with the first lower rod, the second lower rod, the third lower rod and the fourth lower rod.

Preferably, the connecting seat includes an upper chassis, a lower chassis that is slidably arranged in the upper chassis along the up and down direction, and a connecting rod, one end of the bottom rod is rotatably connected with the upper chassis, One end of the connecting rod is rotatably connected to the bottom rod, and the other end is rotatably connected to the lower chassis.

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

In the present invention, by unlocking the second connecting piece on the surrounding bar, the third connecting piece in at least one other direction can be unlocked at the same time, thereby completing the folding of the surrounding frame, and the bottom bar and the bottom bracket are synchronously folded through the push rod mechanism on the vertical bar, The operation is simple, easy and convenient, and the bed frame can be folded quickly.

Description of drawings

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

Accompanying drawing 2 is the partial schematic diagram of the frame of neutral rod and bottom of the present invention;

Accompanying drawing 3 is A-A sectional view among accompanying drawing 2;

Accompanying drawing 4 is the schematic cross-sectional view of the second connector in the present invention;

Accompanying drawing 5 is the sectional schematic diagram of the 3rd connector among the present invention;

Accompanying drawing 6 is a partial schematic view of the surrounding bar in the present invention;

Accompanying drawing 7 is B-B sectional view among accompanying drawing 6;

Accompanying drawing 8 is C-C sectional view among accompanying drawing 7;

Accompanying drawing 9 is the schematic diagram of the half-folded state of the travel cot in the present invention;

Accompanying drawing 10 is the schematic diagram of the folded state of the travel cot in the present invention.

Among them: 1. Pole; 20. Fixed seat; 21. Wheel; 30. The first connecting rod; 300. The first upper rod; 301. The first lower rod; 31. The second connecting rod; 310. The second upper rod ; 311, the second lower rod; 32, the first connector; 33, the second connector; 330, the unlocking handle; 331, the first pin; 332, the first dead bolt; 333, the horizontal groove; 334, the chute; 34, the third connecting piece; 340, the unlocking block; 3400, the sliding slope; 341, 342, the locking block; 343, the second bolt; 344, the second pin; 345, the chute; 346; , the third connecting rod; 350, the third upper rod; 351, the third lower rod; 36, the fourth connecting rod; 360, the fourth upper rod; 361, the fourth lower rod; 37, the traction rope; 40, the bottom rod ; 401, bottom rod depression; 41, upper chassis; 42, lower chassis; 43, connecting rod; 50, ejector rod; 501, ejector rod protruding part;

Detailed ways

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

A travel cot as shown in Figure 1 has an unfolded state and a folded state, including a bottom bracket, an upper frame, four vertical rods 1 arranged between the bottom bracket and the upper frame, and four vertical rods arranged on the four vertical rods respectively. 1 the fixing seat 20 at the lower end. The following is a detailed introduction to each component:

The upper surrounding frame includes: a first surrounding bar and a second surrounding bar whose ends are rotatably connected to the first connecting member 32 through axes d1 and d2, axes d3 and d4 respectively, and the first surrounding bar includes one end passing through axes e1 and e2 , e3 and e4 and the first connecting rod 30 and the second connecting rod 31 that are rotatably connected with the second link 33, the first connecting rod 30 includes the first upper rod 300, the first lower rod 301 arranged in parallel up and down, the second The connecting rod 31 includes a second upper rod 310 and a second lower rod 311 arranged in parallel up and down; the second surrounding rod includes a third connecting rod 35 whose end is rotatably connected to the third connecting member 34 through the shafts e5 and e6, e7 and e8 And the fourth connecting rod 36, the third connecting rod 35 includes a third upper rod 350 and a third lower rod 351 arranged in parallel up and down, and the fourth connecting rod 36 includes a fourth upper rod 360 and a fourth lower rod 361 arranged in parallel up and down.

The upper frame also includes a first locking device that relatively locks the first upper rod 300 and the second upper rod 310 in the first connecting rod 30 and the second connecting rod 31 , and connects the third connecting rod 35 and the fourth connecting rod 36 The third upper rod 350 and the fourth upper rod 360 are relatively locked by the second locking device. Wherein: the first locking device comprises a first locking unit which locks the first upper rod 300, the second upper rod 310 and the second connecting member 33 respectively and a first unlocking unit which is used to unlock the first locking unit, and the second The locking device includes a second locking unit for locking the third upper rod 350, the fourth upper rod 360 and the third connecting member 34 respectively and a second unlocking unit for unlocking the second locking unit, the first unlocking unit and the second locking unit. The two unlocking units are linked through the traction cable 37, and when one of the first unlocking unit and the second unlocking unit performs an unlocking operation, the first locking unit and the second locking unit are simultaneously unlocked.

The first locking unit includes a first locking tongue 332 fixed on one end of the first upper rod 300 and the second upper rod 310 , and a first pin 331 disposed on the second connecting member 33 slidably in the horizontal direction. The first unlocking unit includes an unlocking handle 330 slidably arranged on the second connecting member 33 in the up and down direction. The opposite sides of the unlocking handle 330 are respectively provided with inclined grooves 333 extending in the up and down direction. The opposite sides of the second connecting member 33 Horizontal slots 334 extending along the horizontal direction are defined respectively, and the first pin 331 is disposed through the horizontal slots 334 and the inclined slots 333 and can slide along the horizontal slots 334 and the inclined slots 333 .

The second locking unit includes a second lock tongue 343 fixed on one end of the third upper rod 350 and the fourth upper rod 360 , and a second pin 344 slidably disposed on the third connecting member 34 . The second unlocking unit further includes unlocking pull blocks 340 slidably arranged on the third connecting member 34 in the up and down direction, respectively located on opposite sides of the unlocking pulling block 340 and rotatably connected with the third connecting member 34 through rotating shafts k1 and k2 The locking blocks 341, 342 of the rotating shafts k1, k2 extend along the horizontal direction, the second pin 344 is fixed on the upper part of the locking blocks 341, 342, and the two sides of the third connecting piece 34 are respectively provided with k1, k2 The arc-shaped chute 345 in the center of the circle, the second pin 344 passes through the chute 345 and can slide in the chute 345; the opposite sides of the unlocking block 340 have sliding slopes 3400 respectively, and the sliding slopes 3400 are located below the rotating shafts k1 and k2 And the sliding slope 3400 extends upward and outward from bottom to top, so as to abut against the lower parts of the locking blocks 341 , 342 , so that the locking blocks 341 , 342 rotate around the rotation axes k1 , k2 . An elastic member 346 is disposed between the locking blocks 341 , 342 . The elastic member 346 is located above the rotating shafts k1 , k2 , and the elastic member 346 provides elastic force for the locking blocks 341 , 342 to reset.

One end of the tow rope 37 is connected to the unlocking handle 330, and the other end passes through the first lower rod 301, the first connecting member 32 and the third lower rod 351 or the second lower rod 311, the first connecting member 32 and the fourth lower rod. The lower rod 361 is connected with the unlocking pull block 340 .

The bottom bracket includes four bottom rods 40, a connection seat that is rotatably connected to one end of a plurality of bottom rods 40, and the connection seat includes an upper chassis 41, a lower chassis 42 and a connecting rod 43 that can be slidably arranged in the upper chassis 41 along the up and down direction. One end of the rod 40 is rotatably connected with the upper chassis 41 through the axis c, one end of the connecting rod 43 is rotatably connected with the bottom rod 40 through the axis b, and the other end is rotatably connected with the lower chassis 42 through the axis a.

The travel cot also includes a cam assembly arranged on each fixing seat 20, a push rod 50 extending along the extending direction of the upright rod 1, and a push rod for connecting the push rod 50 to the first surrounding rod and the second surrounding rod respectively. The strut 6 , wherein: the upper end of the vertical rod 1 is fixedly connected to the first connecting piece 32 , the vertical rod 1 is provided with a mandrel fixing sleeve 51 , and the mandrel 50 is arranged in the mandrel fixing sleeve 51 . The upper end of the ejector rod 50 is respectively rotatably connected with two ejector rod stays 6, and the two ejector rod stays 6 are respectively connected to the first enclosure connected to the same first connecting member 32 through the shafts g1 and g2, and the shafts g3 and g4. The rod is rotatably connected to the second surrounding rod, specifically the first lower rod 301 and the third lower rod 351 , the second lower rod 311 and the fourth lower rod 361 .

The cam assembly includes a protruding part 501 fixedly connected to the bottom of the top rod 50, a concave part 401 of the bottom rod fixedly connected to the other end of the bottom rod 40 and rotatably connected to the fixed base 20 through the shaft f, and the top rod protrudes The portion 501 is accommodated in the bottom bar recessed portion 401 .

In addition, wheels 21 are arranged on the fixed seat 20 .

The unfolding and folding process of the present embodiment is described in detail below:

When the travel cot is in the unfolded state: the first locking unit and the second locking unit are locked, at this time: the first pin 331 abuts against the lower part of the first lock tongue 332, the second pin 344 abuts against the lower part of the second lock tongue 343, the first The upper rod 300 , the second upper rod 310 , the third upper rod 350 , and the fourth upper rod 360 cannot rotate due to the blocking of the first pin 331 and the second pin 344 . At the same time: the first pin 331 is positioned at the outer end of the horizontal groove 334 and the upper end of the chute 333; the second pin 344 is positioned at the outer end of the chute 345, and the locking blocks 341, 342 are in a state where the upper end is opened and the lower end is closed due to the elastic force of the elastic member 346 .

When the travel cot needs to be folded: operate the unlocking handle 330 to slide upward relative to the second connecting piece 33 and pull the second connecting piece 33 upward, the first pin 331 slides from the upper end of the chute 333 to the lower end, and the outer side of the horizontal groove 334 end to the inner end, so that the first pin 331 is disengaged from the bottom of the first deadbolt 332, the first upper rod 300, the second upper rod 310, the first lower rod 301, the second lower rod 311 and the second connecting piece 33 At the same time, the upward sliding of the unlocking handle 330 drives the traction cable 37 to pull the unlocking block 340 to slide downward, and the bottom of the locking blocks 341, 342 is pushed by the sliding slope 3400 to make the two locking blocks 341, 340 The distance at the bottom of 342 increases, and the distance at the top decreases, so that the second pin 344 slides from the outer end of the chute 345 to the inner end, so that the first pin 344 breaks away from the bottom of the first dead bolt 342, and the third upper rod 350, The connecting ends of the fourth upper rod 360, the third lower rod 351, the fourth lower rod 361 and the third connecting piece 34 can be rotated upward;

The rotation of the first lower rod 301, the second lower rod 311, the third lower rod 351, and the fourth lower rod 361 makes the push rod 50 be pressed downward, so that the push rod protrusion 501 presses the bottom rod recess 401 downward , so that one end of the bottom rod 40 connected to the connecting seat rotates upwards with the bottom rod recess 401 as the axis, so that the upright rods 1 can be folded toward the middle in a roughly vertical state and parallel to each other, thereby finally completing the travel cot of the fold.

When the travel cot needs to be unfolded: press down the connecting seat to make the bottom bar 40 in the unfolded state, and at the same time drive the surrounding frame to unfold to lock the first locking unit and the second locking unit. Or lift the second connecting piece 33 or the third connecting piece 34 at the same time to unfold the bed frame, and lock the first locking unit and the second locking unit, and there is no need to operate the unlocking handle 330 during the unfolding process.

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 (10)

1. a travelling bed, there is deployed condition and folded state, comprise lower supporter, upper enclosure frame, the holder that is arranged on multiple vertical rods between described lower supporter and upper enclosure frame, is separately positioned on described multiple vertical rod bottoms, described lower supporter comprises many foundation bar, rotate with described many foundation bar one end the Connection Block be connected, the other end of described bottom bar is connected with holder

Described upper enclosure frame comprises end and to rotate with the first connector respectively the first railing and the second railing that are connected, described vertical rod upper end and the first described connector are fixedly connected, the first described railing comprise an end by the second connector rotate connect first connecting rod and second connecting rod, the second described railing comprise an end by the 3rd connector rotate connect third connecting rod and double leval jib, described upper enclosure frame also comprises described first connecting rod, the first locking device that second connecting rod locks relatively, by described third connecting rod, the second locking device that double leval jib locks relatively, it is characterized in that: the first described locking device is arranged on the second described connector, the second described locking device is arranged on the 3rd described connector, linked by hauling rope between the first described locking device and the second locking device, time folding, one in the first described locking device or the second locking device when unlocking, another locking device unlocks simultaneously, upper enclosure frame described in downward pressing makes described Connection Block move upward, the upper enclosure frame of described travelling bed, vertical rod and bottom bar are drawn close mutually, described travelling bed is in the process launched and fold, the motion that described vertical rod is all kept upright.

2. travelling bed according to claim 1, it is characterized in that: the first described locking device comprises respectively by described first connecting rod, the first lock cell that second connecting rod and the second described connector lock mutually and first separate lock unit for making the first described lock cell unlock, the second described locking device comprises respectively by described third connecting rod, the second lock cell that double leval jib and the 3rd described connector lock mutually and second separate lock unit for making the second described lock cell unlock, the both ends of described hauling rope connect described the first solution lock unit and second respectively and separate lock unit, when the described first solution lock unit carries out unlocking operation, the first described lock cell and the second lock cell unlock simultaneously.

3. travelling bed according to claim 1, it is characterized in that: the first described lock cell comprises the first dead bolt on the described end being fixed on described first connecting rod and second connecting rod, first pin that can be slidably arranged in the horizontal direction on the second described connector, during described first locking unit locks, the first described pin is against the bottom of the first described dead bolt;

The second described lock cell comprises the second dead bolt of the described end being fixed on described third connecting rod and double leval jib, second pin that can be slidably arranged in the horizontal direction on the 3rd described connector, during described second locking unit locks, the second described pin is against the second described dead bolt bottom.

4. travelling bed according to claim 3, it is characterized in that: described first separates lock unit comprises the unblock handle be slidably arranged in along the vertical direction on the second described connector, the relative both sides of described unblock handle offer the skewed slot extended along the vertical direction respectively, the relative both sides of the second described connector offer the level trough extended in the horizontal direction respectively, and the first described pin arranges through described level trough and skewed slot and can slide along level trough and skewed slot; One end of described hauling rope is connected on described unblock handle.

5. travelling bed according to claim 4, is characterized in that: during described first locking unit locks, the first described pin is positioned at the outer end of described level trough, the upper end of skewed slot; When the first described lock cell unlocks, the first described pin is positioned at the inner of described level trough, the lower end of skewed slot.

6. the travelling bed according to claim 3 or 4 or 5, it is characterized in that: described second separates lock unit is comprised the unblock pulling block be slidably arranged in along the vertical direction on the 3rd described connector, lay respectively at the relative both sides of described unblock pulling block and to be rotated the clamping block be connected by rotating shaft with the 3rd described connector, and the second described pin is fixed on the top of described clamping block; The relative both sides of described unblock pulling block have the sliding bevel be positioned at below described rotating shaft respectively, and described clamping block bottom is against on described sliding bevel, are positioned at above described rotating shaft and have elastic component between the relative both sides of described unblock pulling block; One end of described hauling rope is connected on described unblock pulling block.

7. travelling bed according to claim 6, it is characterized in that: the both sides of the 3rd described connector offer the chute of arc respectively, the second described pin passes described chute and can along slide, when the second described locking unit locks, the second described pin is positioned at the outer end of described chute, and the bottom of described clamping block and the bottom of described sliding bevel offset; When the second described lock cell unlocks, the second described pin is positioned at the inner of described chute, and the bottom of described clamping block and the top of described sliding bevel offset.

8. travelling bed according to claim 1, it is characterized in that: described first connecting rod comprises the first upper boom, the first lower beam that be arranged in parallel up and down, second connecting rod comprises second upper boom that be arranged in parallel up and down, the second lower beam, and the first described upper boom, the second upper boom lock by the first described locking device relatively; Third connecting rod comprises the 3rd upper boom, the 3rd lower beam that be arranged in parallel up and down, and double leval jib comprises the 4th upper boom that be arranged in parallel up and down, the 4th lower beam, and the 3rd described upper boom, the 4th upper boom lock by the second described locking device relatively.

9. travelling bed according to claim 8, it is characterized in that: described travelling bed also comprises the cam pack be arranged on each described holder, short transverse along travelling bed extends push rod, for two push rod struts that described push rod is connected with the second railing with the first described railing respectively, described cam pack comprise with described push rod bottom the push rod protuberance that is fixedly connected, be fixedly connected on described bottom bar the other end and rotate the bottom bar depressed part be connected with described holder, described push rod protuberance is housed in described bottom bar depressed part, the upper end of described push rod rotates with the bottom of described two push rod struts and is connected, the upper end of two described push rod struts respectively with the first described lower beam, second lower beam, 3rd lower beam rotates with the 4th lower beam and is connected.

10. travelling bed according to claim 1, it is characterized in that: described Connection Block comprises top bottom-disc, can be slidably arranged in low bottom-disc in described top bottom-disc and connecting rod along the vertical direction, one end of described bottom bar rotates with described top bottom-disc and is connected, one end of described connecting rod rotates with described bottom bar and is connected, and the other end rotates with described low bottom-disc and is connected.