Quick locking mechanism and folding game bed

Abstract

The utility model relates to the technical field of special furniture for children, in particular to a quick locking mechanism and a folding game bed, the quick locking mechanism comprises a rotating main body, a locking rod and a main body shell, a rotating hole is formed in the main body shell, and the rotating main body penetrates through the rotating hole and is rotationally connected with the main body shell; the rotating body is sleeved with a disc, a trigger block is arranged at the top of the disc, one end of the locking rod is slidably connected with a piston block, and a guide slope is arranged at the abutting position of the trigger block and the piston block. A trigger hole and a rotating groove are formed in the bottom of the main body shell, the rotating groove communicates with the side wall and the top of the main body shell and the trigger hole, the trigger block is located in the trigger hole and can move in the trigger hole, and the end, provided with the piston block, of the locking rod is located in the rotating groove and rotationally connected with the main body shell. The end, away from the locking rod, of the piston block can stretch into the trigger hole and abut against the trigger block. By the adoption of the scheme, the technical problems that in the prior art, a game bed is difficult to disassemble, assemble and store and inconvenient to use can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of children's special furniture, in particular to a quick locking mechanism and folding play bed. BACKGROUND

[0002] Infants are lively and like to explore and try new things, and the play bed can provide a safe and comfortable space for children, which is an ideal place for children to play and release their nature. At the same time, children can freely crawl, stand, sit, and even play and read in the play bed, which not only exercises the children's body coordination ability, but also cultivates the children's self-exploration and independent thinking ability.

[0003] However, the existing play bed needs to be assembled by parents when in use, and the play bed has many parts and a complex structure, which often consumes time and effort during assembly, and even professional tools are needed to complete the assembly. At the same time, improper assembly may affect the safety and stability of the play bed. In summary, the existing play bed is difficult to disassemble and store, and is inconvenient to use. UTILITY MODEL CONTENTS

[0004] One of the purposes of the utility model is to provide a quick locking mechanism to solve the technical problem of the existing play bed disassembly and storage difficulty and inconvenience in use.

[0005] The utility model provides a basic scheme one:

[0006] A quick locking mechanism, comprising a rotating main body, a locking rod and a main body shell, a rotating hole is formed on the main body shell, the rotating main body passes through the rotating hole and is rotatably connected with the main body shell;

[0007] A disc is sleeved on the rotating main body, a trigger block is arranged on the top of the disc, a piston block is slidably connected to one end of the locking rod, the trigger block can abut against the piston block, and a guide inclined surface is arranged at the abutting position of the trigger block and the piston block;

[0008] A trigger hole and a rotating groove are formed on the bottom of the main body shell, the rotating groove communicates with the side wall, the top and the trigger hole of the main body shell, the trigger block is located in the trigger hole and can move in the trigger hole, one end of the locking rod provided with the piston block is located in the rotating groove and is rotatably connected with the main body shell, and the end of the piston block away from the locking rod can extend into the trigger hole.

[0009] Further, the number of trigger blocks, rotating grooves, trigger holes and locking rods is two, the two trigger holes are symmetrically formed on the main body shell, the two trigger blocks are symmetrically arranged on the top of the disc, and the two ends of the two locking rods are arranged in the two rotating grooves respectively.

[0010] Further, the side wall of the piston block is provided with a reset hole, one end of the piston block away from the guide slope is located in the locking rod, the locking rod is provided with a rotating rod, the axial direction of the rotating rod is perpendicular to the axial direction of the locking rod, the rotating rod passes through the reset hole, and the piston reset spring is arranged between the rotating rod and the reset hole, and the axial direction of the piston reset spring is parallel to the axial direction of the locking rod.

[0011] Further, the rotating reset spring is further provided, and the two ends of the rotating reset spring are connected with the rotating body and the disc respectively.

[0012] Further, the handle is further provided, the top of the rotating body is provided with a handle rod, the axial direction of the handle rod is perpendicular to the axial direction of the rotating body, and the handle is connected with the handle rod.

[0013] Further, the handle reset torsion spring is further provided, the handle rod passes through the handle reset torsion spring, one end of the handle reset torsion spring is connected with the handle, and the other end is connected with the top of the rotating body.

[0014] The beneficial effects of the first basic scheme are as follows:

[0015] In the scheme, in the locking state, the piston block extends from the locking rod, the piston block is limited in the trigger hole, so that the position of the locking rod cannot be moved, and the relative position of the locking rod and the main shell cannot be changed, that is, the locking rod is locked. When unlocking, the rotating body is controlled to rotate, the rotating body drives the trigger block to rotate, the trigger block abuts against the piston block, and the piston block is pushed into the locking rod, so that the piston block is no longer limited, and the locking rod can rotate. By the design, the locking rod is quickly locked and unlocked, and one hand can operate. When the folding game bed is applied to the game bed, the folding game bed can be quickly disassembled and assembled, so that the use and storage of the game bed are more convenient.

[0016] The second purpose of the utility model is to provide a folding game bed.

[0017] The utility model provides a second basic scheme:

[0018] A folding game bed, comprising a bed top support, a bed body support and a bed bottom support, the bed bottom support comprising the quick locking mechanism and a common rod, the common rod being rotatably connected with the main shell, and one end of the common rod and the locking rod away from the main shell being hingedly connected with the bottom end of the bed body support.

[0019] The bed top support comprises two long rods and two short rods, the end portions of the long rods and the short rods being hingedly connected with the top end of the bed body support, and the middle portions of the long rods and the short rods being provided with folding pieces.

[0020] Further, the folding pieces comprise a first U-shaped plate and a second U-shaped plate, the opening of the first U-shaped plate facing downward, the opening of the second U-shaped plate facing upward, the end portions of the long rods and the short rods being located in the first U-shaped plate, and the first U-shaped plate being located in the second U-shaped plate.

[0021] The first U-shaped plate is provided with a first vertical hole, two horizontal holes and two first inclined holes, the two horizontal holes and the two first inclined holes are located on both sides of the first vertical hole and are symmetrically arranged;

[0022] The second U-shaped plate is provided with a second vertical hole and two second inclined holes, the two second inclined holes are located on both sides of the second vertical hole and are symmetrically arranged;

[0023] The folding piece further comprises a first pin, a second pin, a third pin, a fourth pin and a fifth pin;

[0024] The first pin passes through the end of the long rod and the short rod, and the two ends of the first pin are connected with the first U-shaped plate;

[0025] The second pin passes through the end of the long rod and the short rod, and the two ends of the second pin pass through the first inclined hole and can move in the first inclined hole;

[0026] The two ends of the third pin pass through the horizontal hole and the second inclined hole in sequence and can move in the horizontal hole and the second inclined hole;

[0027] The two ends of the fourth pin pass through the first vertical hole and the second U-shaped plate in sequence and can move in the first vertical hole;

[0028] The two ends of the fifth pin pass through the first U-shaped plate and the second vertical hole in sequence and can move in the second vertical hole;

[0029] The fourth pin is located above the fifth pin, and a trigger spring is arranged between the bottom of the fifth pin and the bottom of the second U-shaped plate.

[0030] Further, the bottom end of the bed body support is provided with a moving wheel.

[0031] Further, the bed cover is further included, the top of the bed cover wraps the bed top support, and the bed cover is located above the bed bottom support.

[0032] The beneficial effects of the second basic scheme are as follows:

[0033] In the scheme, the bed top support, the bed body support and the bed bottom support are used to provide support, the quick locking mechanism is used to realize the quick folding of the bed bottom support, the folding piece and the hinge design of the bed body support are combined, the game bed does not need to be disassembled, and the storage can be realized directly through folding, the use difficulty of the game bed is reduced, and the use feeling of parents is improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a structure schematic view of the quick locking mechanism embodiment one of the utility model;

[0035] Figure 2 It is a structure schematic view of the quick locking mechanism embodiment one of the utility model after removing the main body shell;

[0036] Figure 3This is a schematic diagram of the structure of a quick locking mechanism according to Embodiment 1 of the present invention after removing the main body shell and a locking rod;

[0037] Figure 4 This is a schematic diagram of the structure of a folding play bed according to Embodiment 2 of this utility model after removing the bed cover;

[0038] Figure 5 This is a schematic diagram of the folding component of a second embodiment of the folding play bed of this utility model;

[0039] Figure 6 This is a half-sectional schematic diagram of the folding component of a second embodiment of the folding play bed of this utility model;

[0040] Figure 7 This is a schematic diagram of the structure of a folding play bed according to Embodiment 2 of the present invention, with the second U-shaped plate removed from the folding component;

[0041] Figure 8 This is a schematic diagram of a second embodiment of the folding play bed of this utility model. Detailed Implementation

[0042] The following detailed description illustrates the specific implementation method:

[0043] The reference numerals in the accompanying drawings include: rotating body 1, locking rod 2, main body shell 3, disc 4, trigger block 5, piston block 6, rotating rod 7, piston return spring 8, rotating return spring 9, handle 10, quick locking mechanism 11, bed frame support 12, moving wheel 13, ordinary rod 14, support leg 15, long rod 16, short rod 17, folding piece 18, first U-shaped plate 19, second U-shaped plate 20, first vertical hole 21, horizontal hole 22, first oblique hole 23, second vertical hole 24, second oblique hole 25, first pin 26, second pin 27, third pin 28, fourth pin 29, fifth pin 30, trigger spring 31, bed cover 32.

[0044] Example 1

[0045] A quick-locking mechanism, as shown in the attached figure Figure 1 As shown, the device includes a rotating body 1, a locking rod 2, and a main body shell 3. The main body shell 3 has a rotating hole through which the rotating body 1 passes and is rotatably connected to the main body shell 3. The rotating hole vertically penetrates the main body shell 3, and the axial direction of the rotating body 1 is parallel to the axial direction of the rotating hole.

[0046] As attached Figure 2 , 3 As shown, a disc 4 is fitted onto the rotating body 1, and a trigger block 5 is provided on the top of the disc 4. In this embodiment, there are two trigger blocks 5, which are symmetrically arranged on the top of the disc 4. The rotating body 1, the disc 4, and the trigger blocks 5 are integrally formed.

[0047] One end of the locking rod 2 is slidingly connected with the piston block 6, the trigger block 5 can abut against the piston block 6, and the abutting position of the trigger block 5 and the piston block 6 is provided with a guide slope. Specifically, the side wall of the piston block 6 is provided with a reset hole, one end of the piston block 6 away from the guide slope is located in the locking rod 2, the locking rod 2 is provided with a rotating rod 7, the axial direction of the rotating rod 7 is perpendicular to the axial direction of the locking rod 2, the rotating rod 7 penetrates through the reset hole, and the rotating rod 7 and the reset hole are provided with a piston reset spring 8 therebetween, and the axial direction of the piston reset spring 8 is parallel to the axial direction of the locking rod 2. One side of the trigger block 5 facing the piston block 6 is provided with a guide slope, and the other end of the piston block 6 away from the locking rod 2 is provided with another guide slope, and the two guide slopes can abut against each other. In this embodiment, the number of the locking rod 2 is two, the locking rod 2 is hollow, and one end of each of the two locking rods 2 is slidingly connected with the piston block 6, that is, the number of the piston block 6 is the same as that of the locking rod 2. In the initial state, the rotating rod 7 is located at one end of the reset hole away from the trigger block 5, at this time, the piston reset spring 8 is in a free stretching state, when the trigger block 5 extrudes the piston block 6, the piston block 6 moves towards the locking rod 2, and the piston reset spring 8 is compressed.

[0048] The bottom of the main shell 3 is provided with a trigger hole and a rotating groove, the trigger hole is located between the rotating groove and the rotating hole, and the rotating groove is communicated with the side wall, the top and the trigger hole of the main shell 3. In this embodiment, the number of the trigger hole and the rotating groove is two, and the two trigger holes are symmetrically provided on the main shell 3, and the corresponding two rotating grooves are also provided on the main shell 3.

[0049] The two ends of the two locking rods 2 are respectively arranged in the two rotating grooves, that is, one end of the locking rod 2 provided with the piston block 6 is located in the rotating groove and is rotatably connected with the main shell 3. Specifically, the main shell 3 is provided with a connecting clamping seat, the two ends of the rotating rod 7 extend into the connecting clamping seat and are movably connected with the connecting clamping seat, that is, the position of the rotating rod 7 is limited by the connecting clamping seat, but the rotating rod 7 can rotate in the connecting clamping seat. In this embodiment, the connecting clamping seat is integrally formed with the main shell 3.

[0050] The trigger block 5 is located in the trigger hole and can move in the trigger hole, and the other end of the piston block 6 away from the locking rod 2 can extend into the trigger hole. The trigger block 5 moves in the trigger hole, and the guide slope of the trigger block 5 abuts against the guide slope of the piston block 6 in the moving process, so that the piston block 6 moves towards the locking rod 2. The arrangement of the guide slope facilitates the piston block 6 to be pushed by the trigger block 5.

[0051] Further comprising a rotating reset spring 9, the two ends of the rotating reset spring 9 are respectively connected with the rotating body 1 and the disc 4. Specifically, the rotating reset spring 9 is sleeved on the rotating body 1, and the rotating body 1 and the disc 4 are provided with installation holes for the rotating reset spring 9 to penetrate through, and the rotating reset spring 9 is positioned through the installation holes.

[0052] The system also includes a handle 10 and a handle 10 return torsion spring. The top of the rotating body 1 is provided with a handle 10 rod, the axis of which is perpendicular to the axis of the rotating body 1. The handle 10 is connected to the handle 10 rod. In this embodiment, both ends of the handle 10 and the handle 10 rod are integrally formed. The handle 10 rod passes through the handle 10 return torsion spring, one end of which is connected to the handle 10, and the other end is connected to the top of the rotating body 1. The rotating body 1 and the handle 10 have another mounting hole through which the handle 10 return torsion spring passes, thus limiting its position. The handle 10 facilitates the application of force to rotate the rotating body 1, and the handle 10 return torsion spring keeps it in contact with the top of the rotating body 1. In use, rotating the handle 10 ninety degrees makes it easy to grip. Applying force to rotate the handle 10 causes the rotating body 1 to rotate. Releasing the handle 10 causes it to automatically rotate ninety degrees back to its original position under the force of the handle 10 return to its original position.

[0053] The quick-locking mechanism in this design is applied to children's playbeds. In the locked state, piston block 6 extends from the locking rod 2. Piston block 6 is confined within the trigger hole, preventing the locking rod 2 from moving. At this time, the relative position of the locking rod 2 and the main body shell 3 cannot be changed, meaning the locking rod 2 is locked. To unlock, the rotating body 1 is controlled to rotate, causing the trigger block 5 to rotate. This causes the trigger block 5 to abut against piston block 6, pushing piston block 6 into the locking rod 2. At this point, piston block 6 is no longer confined, and the locking rod 2 can rotate. This design enables quick locking and unlocking of the locking rod 2, which can be operated with one hand. When applied to a playbed, it allows for quick assembly and disassembly, making the playbed more convenient to use and store.

[0054] Example 2

[0055] A folding play bed, as shown in the attached image Figure 4 As shown, the bed includes a top support, a bed frame support 12, and a bottom support, with four bed frame supports 12 in total. The bottom of each bed frame support 12 is equipped with casters 13. In this embodiment, two casters 13 are used, and each caster 13 is fixedly connected to the bottom of one of the two bed frame supports 12 by screws.

[0056] The bed base support includes the aforementioned quick-locking mechanism 11 and ordinary rods 14. Ordinary rods 14 are rotatably connected to the main body shell 3. The ends of ordinary rods 14 and locking rods 2 away from the main body shell 3 are hinged to the bottom end of the bed frame 12. Specifically, there are four ordinary rods 14, and six rotating grooves in the quick-locking mechanism 11. For ease of distinction, two rotating grooves are defined as first rotating grooves, and the other four as second rotating grooves. The two first rotating grooves connect the side wall, top, and trigger hole of the main body shell 3, and one end of each of the two locking rods 2 is located within one of the two first rotating grooves. The four second rotating grooves connect the side wall and top of the main body shell 3, and one end of each of the four ordinary rods 14 is located within one of the four second rotating grooves and rotatably connected to them. In this embodiment, one end of the ordinary rod 14 is integrally formed with a hinge post. The hinge post passes through the ordinary rod 14, and both ends of the hinge post are inserted into the groove wall of the second rotating groove, allowing the ordinary rod 14 to rotate about the hinge post as an axis.

[0057] Two locking rods 2 are hinged at their ends away from the main body shell 3 to two bed frame supports 12, and two ordinary rods 14 are hinged at their ends away from the main body shell 3 to two other bed frame supports 12. The length directions of the ordinary rods 14 connecting the bed frame supports 12 and the locking rods 2 intersect. The remaining two ordinary rods 14 are provided with feet 15 at their ends away from the main body shell 3. In this embodiment, the free ends of the remaining two ordinary rods 14 are bent to form feet 15, with the feet 15 facing downwards.

[0058] The bed top support includes two long rods 16 and two short rods 17. The ends of the long rods 16 and short rods 17 are hinged to the top of the bed frame 12, and the middle of the long rods 16 and short rods 17 is provided with a folding piece 18. See attached diagram for details. Figure 5 , 6 As shown in Figure 7, the folding member 18 includes a first U-shaped plate 19 and a second U-shaped plate 20. The opening of the first U-shaped plate 19 faces downward, and the opening of the second U-shaped plate 20 faces upward. The ends of the long rod 16 and the short rod 17 are located inside the first U-shaped plate 19, and the first U-shaped plate 19 is located inside the second U-shaped plate 20. Taking the long rod 16 as an example, the long rod 16 includes a first long rod 16 and a second long rod 16. The length directions of the first long rod 16 and the second long rod 16 are the same. One end of the first long rod 16 and the second long rod 16 are respectively hinged to the two bed frame supports 12. The ends of the first long rod 16 and the second long rod 16 away from the bed frame supports 12 are connected by the folding member 18. The ends of the first long rod 16 and the second long rod 16 away from the bed frame supports 12 are located inside the first U-shaped plate 19.

[0059] The first U-shaped plate 19 and the second U-shaped plate 20 each comprise two parallel plates arranged in parallel and a connecting plate connecting the two parallel plates, and the parallel plates and the connecting plate are integrally formed. The first U-shaped plate 19 is provided with a first vertical hole 21, two horizontal holes 22 and two first inclined holes 23, the two horizontal holes 22 and the two first inclined holes 23 are located on both sides of the first vertical hole 21 and are symmetrically arranged, and the first vertical hole 21, the two horizontal holes 22 and the two first inclined holes 23 pass through the two parallel plates arranged in parallel of the first U-shaped plate 19. The second U-shaped plate 20 is provided with a second vertical hole 24 and two second inclined holes 25, the two second inclined holes 25 are located on both sides of the second vertical hole 24 and are symmetrically arranged, and the second vertical hole 24 and the two second inclined holes 25 pass through the two parallel plates arranged in parallel of the second U-shaped plate 20.

[0060] The folding piece 18 further comprises a first pin 26, a second pin 27, a third pin 28, a fourth pin 29 and a fifth pin 30, the first pin 26 passes through the end of the long rod 16 and the short rod 17, and the two ends of the first pin 26 are connected with the first U-shaped plate 19. Taking the long rod 16 as an example, the number of the first pin 26 is two, the two first pins 26 pass through the ends of the first long rod 16 and the second long rod 16 away from the bed body support 12 respectively, and the two ends of the first pin 26 pass through the first U-shaped plate 19 and are rotatably connected with the first U-shaped plate 19 respectively.

[0061] The second pin 27 passes through the end of the long rod 16 and the short rod 17, and the two ends of the second pin 27 pass through the first inclined hole 23 and can move in the first inclined hole 23. The number of the second pin 27 is two, the two second pins 27 pass through the ends of the first long rod 16 and the second long rod 16 away from the bed body support 12 respectively, and the two ends of the second pin 27 pass through the first inclined hole 23 on the two parallel plates respectively, the two ends of the second pin 27 extend circumferentially to form a first annular protrusion, and the second pin 27 can move along the length direction of the first inclined hole 23. The first annular protrusion is arranged so that the long rod 16 and the first U-shaped plate 19 are rotatably connected through the second pin 27.

[0062] The two ends of the third pin 28 pass through the horizontal hole 22 and the second inclined hole 25 in sequence and can move in the horizontal hole 22 and the second inclined hole 25. The number of the third pin 28 is two, the two ends of the third pin 28 pass through the horizontal hole 22 and the second inclined hole 25 respectively, and similarly, the two ends of the third pin 28 extend circumferentially to form a second annular protrusion, and through the second annular protrusion, the first U-shaped plate 19 and the second U-shaped plate 20 are movably connected.

[0063] The two ends of the fourth pin 29 pass through the first vertical hole 21 and the second U-shaped plate 20 in sequence, and can move within the first vertical hole 21. The two ends of the fourth pin 29 extend circumferentially to form a third annular protrusion, which allows the first U-shaped plate 19 and the second U-shaped plate 20 to be movably connected. The two ends of the fifth pin 30 pass through the first U-shaped plate 19 and the second vertical hole 24 in sequence, and can move within the second vertical hole 24. The two ends of the fifth pin 30 extend circumferentially to form a fourth annular protrusion, which allows the first U-shaped plate 19 and the second U-shaped plate 20 to be movably connected. The fourth pin 29 is located above the fifth pin 30. A trigger spring 31 is provided between the bottom of the fifth pin 30 and the bottom of the second U-shaped plate 20. The top of the connecting plate of the second U-shaped plate 20 is integrally formed with a limiting seat, and the trigger spring 31 is located within the limiting seat.

[0064] As attached Figure 8 As shown, it also includes a bedspread 32, the top of which covers the top bed frame, and the bedspread 32 is located above the bottom bed frame. Specifically, the bedspread 32 is square, the top of which covers the top bed frame, and each of the four edges of the bedspread 32 is provided with a fabric tube. The four bed frame supports 12 pass through the four fabric tubes respectively, and the bottom of the bedspread 32 abuts against the top of the bottom bed frame. In this embodiment, the fabric tubes are sewn onto the bedspread 32.

[0065] The specific implementation process is as follows:

[0066] Grasp handle 10 and rotate it 90 degrees, causing trigger block 5 to abut against piston block 6, and push piston block 6 into locking rod 2. At this time, lift handle 10, and locking rod 2 flips downward relative to the main body shell 3. Press the second U-shaped plate 20 on long rod 16 and short rod 17, causing the second U-shaped plate 20 to move upward relative to the first U-shaped plate. At this time, push folding piece 18 down, and the first long rod 16 and second long rod 16 flip upward relative to folding piece 18. At this time, fold the four bed frame supports 12 together, thus completing the folding and storage of the play bed.

[0067] The above-mentioned is only the embodiment of the present application, and the common knowledge of the specific structure and characteristics in the scheme is not described in detail, the ordinary skilled person in the art knows all the ordinary technical knowledge in the technical field of the present application before the application date or the priority date, can know all the prior art in the field, and has the ability to apply the conventional experimental means before the date, the ordinary skilled person in the art can improve and implement the present scheme under the enlightenment given in the present application, and some typical known structures or known methods should not become an obstacle for the ordinary skilled person in the art to implement the present application. It should be pointed out that for the skilled person in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A quick latch mechanism, characterized by: The quick locking mechanism comprises a rotating main body, a locking rod and a main body shell, the main body shell is provided with a rotating hole, the rotating main body passes through the rotating hole and is rotationally connected with the main body shell; A disc is sleeved on the rotating main body, the top of the disc is provided with a trigger block, one end of the locking rod is slidably connected with a piston block, the trigger block can abut against the piston block, and a guide inclined surface is arranged at the abutting position of the trigger block and the piston block; The bottom of the main body shell is provided with a trigger hole and a rotating groove, the rotating groove is communicated with the side wall, the top and the trigger hole of the main body shell, the trigger block is located in the trigger hole and can move in the trigger hole, one end of the locking rod provided with the piston block is located in the rotating groove and is rotationally connected with the main body shell, and the other end of the piston block away from the locking rod can extend into the trigger hole.

2. A quick locking mechanism according to claim 1, characterized in that: The number of the trigger blocks, the rotating grooves, the trigger holes and the locking rods is two, the two trigger holes are symmetrically arranged on the main body shell, the two trigger blocks are symmetrically arranged on the top of the disc, and the two ends of the two locking rods are respectively arranged in the two rotating grooves.

3. A quick locking mechanism according to claim 2, wherein: The side wall of the piston block is provided with a reset hole, one end of the piston block away from the guide inclined surface is located in the locking rod, the locking rod is provided with a rotating rod, the axial direction of the rotating rod is perpendicular to the axial direction of the locking rod, the rotating rod passes through the reset hole, a piston reset spring is arranged between the rotating rod and the reset hole, and the axial direction of the piston reset spring is parallel to the axial direction of the locking rod.

4. A quick locking mechanism according to claim 3, wherein: The quick locking mechanism further comprises a rotating reset spring, and the two ends of the rotating reset spring are connected with the rotating main body and the disc.

5. A quick locking mechanism according to claim 4, wherein: The quick locking mechanism further comprises a handle, and the top of the rotating main body is provided with a handle rod, the axial direction of the handle rod is perpendicular to the axial direction of the rotating main body, and the handle is connected with the handle rod.

6. A quick locking mechanism according to claim 5, wherein: The quick locking mechanism further comprises a handle reset torsion spring, the handle rod passes through the handle reset torsion spring, one end of the handle reset torsion spring is connected with the handle, and the other end of the handle reset torsion spring is connected with the top of the rotating main body.

7. A foldable playard characterized by: The quick locking mechanism comprises a rotating main body, a locking rod and a main body shell, the main body shell is provided with a rotating hole, the rotating main body passes through the rotating hole and is rotationally connected with the main body shell; The bed top support comprises two long rods and two short rods, the ends of the long rods and the short rods are hingedly connected with the top end of the bed body support, and the middle portions of the long rods and the short rods are provided with folding pieces.

8. The foldable playard of claim 7, wherein: The folding piece comprises a first U-shaped plate and a second U-shaped plate, the opening of the first U-shaped plate faces downward, the opening of the second U-shaped plate faces upward, the ends of the long rods and the short rods are located in the first U-shaped plate, and the first U-shaped plate is located in the second U-shaped plate; The first U-shaped plate is provided with a first vertical hole, two horizontal holes and two first inclined holes, the two horizontal holes and the two first inclined holes are located on the two sides of the first vertical hole and are symmetrically arranged; The second U-shaped plate is provided with a second vertical hole and two second inclined holes, the two second inclined holes are located on the two sides of the second vertical hole and are symmetrically arranged; The folding piece further comprises a first pin, a second pin, a third pin, a fourth pin and a fifth pin; The first pin passes through the ends of the long rods and the short rods, and the two ends of the first pin are connected with the first U-shaped plate; The second pin passes through the ends of the long rods and the short rods, the two ends of the second pin pass through the first inclined holes and can move in the first inclined holes; The two ends of the third pin pass through the horizontal holes and the second inclined holes in sequence and can move in the horizontal holes and the second inclined holes; The two ends of the fourth pin pass through the first vertical hole and the second U-shaped plate in sequence and can move in the first vertical hole; The two ends of the fifth pin pass through the second vertical hole and the second U-shaped plate in sequence and can move in the second vertical hole. Two ends of the fifth pin are sequentially penetrated through the first U-shaped plate and the second vertical hole and are movable in the second vertical hole; The fourth pin is located above the fifth pin, and a trigger spring is arranged between the bottom of the fifth pin and the bottom of the second U-shaped plate.

9. A foldable playard as recited in claim 8, wherein: The bottom end of the bed body support is provided with a moving wheel.

10. The foldable playard of claim 9, wherein: The bed cover is further included, the top of the bed cover wraps the bed top support, and the bed cover is located above the bed bottom support.

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