WO2020154893A1 - 儿童折叠床及其锁定机构 - Google Patents

儿童折叠床及其锁定机构 Download PDF

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Publication number
WO2020154893A1
WO2020154893A1 PCT/CN2019/073693 CN2019073693W WO2020154893A1 WO 2020154893 A1 WO2020154893 A1 WO 2020154893A1 CN 2019073693 W CN2019073693 W CN 2019073693W WO 2020154893 A1 WO2020154893 A1 WO 2020154893A1
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Prior art keywords
children
folding bed
unlocking
bottom rod
locking mechanism
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PCT/CN2019/073693
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English (en)
French (fr)
Inventor
应少波
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宁波欣洁婴童用品制造有限公司
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Priority to PCT/CN2019/073693 priority Critical patent/WO2020154893A1/zh
Publication of WO2020154893A1 publication Critical patent/WO2020154893A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • A47C21/08—Devices for prevention against falling-out, e.g. detachable sidewalls
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
    • A47D15/00—Accessories for children's furniture, e.g. safety belts or baby-bottle holders

Definitions

  • the invention relates to the field of children's folding beds, in particular to a children's folding bed and its locking mechanism.
  • Children’s folding beds are widely used in cribs and children’s play beds. They include a rigid frame with upper and lower horizontal frame members connected together by vertical frame members. The bottom and side walls are usually limited between the frame members. Children can be moved in and out of the upper opening of the play bed. The side walls and the bottom surface are usually made of fabric material arranged on the frame member. In addition, the frame member can be folded to allow the play crib to be more easily carried and stored.
  • the Chinese patent with the patent application number 201110347670.7 and the application date on November 7, 2011 discloses a locking mechanism for a foldable game bed frame, which includes at least one low-position game bed frame assembly and is configured to be in a locked position and unlocked Rotatable locking disc that rotates between positions.
  • In the locked position at least one low frame assembly is fixed in the upright position and prevents it from folding.
  • In the unlocked position at least one lower frame component is opened and allowed to fold.
  • the locking mechanism of the above patent releases the locking effect by rotating the locking disc when it rotates to the position of the recess.
  • the lower frame assembly can rotate freely to achieve folding; and when the recess and the lower frame assembly are misaligned, the lower frame assembly will be Locked, it cannot be turned at this time.
  • it can achieve the locking effect, because its locking and unlocking require manual operations, that is, when the folding game bed is unfolded from the folded state, it needs to be manually turned to lock, and then turned to unlock when it is to be folded. This arrangement makes the use of the locking mechanism more complicated.
  • folding game beds will pose a greater safety hazard, especially today there are many steps (horizontal, living room, toilet, etc.)
  • the house is designed to separate dry and wet by steps between different areas).
  • the folding play bed passes through these steps in a staggered level, if the locking mechanism is not locked, the folding play bed will be folded, causing babies and children to be trapped during use. .
  • the first object of the present invention is to provide a locking mechanism for children's folding bed, which has the effect of automatic locking.
  • a locking mechanism for a children’s folding bed includes a bottom rod, a vertical rod support and a control seat pivotally connected to both ends of the bottom rod, and also includes a sliding member sleeved on the bottom rod, and a receiving member on the bottom rod.
  • the buckle of the sliding member that is locked by the force, the force applying member that generates the force, the first connecting rod whose two ends are respectively pivotally connected to the vertical rod support and the sliding member, and the two ends are respectively connected to the control seat and the sliding member.
  • the second connecting rod pivotally connected to the moving member and an unlocking member arranged on the control seat and connected with the buckle member for overcoming the force.
  • the sliding part is provided on the bottom rod, and the first connecting rod and the second connecting rod are respectively connected with the vertical rod support and the control seat, which not only has the effect of supporting and increasing the strength, but also makes the child foldable
  • the first connecting rod and the second connecting rod will drive the sliding member to slide on the bottom rod; at this time, by installing a fastener on the bottom rod, the force generated by the force applying member
  • the sliding member can be clamped under the action of the folding bed, so that when the folding bed is unfolded, the bottom rod is positioned under the action of the buckle, and due to the positioning of the buckle, the positions of the first link and the second link are also fixed , Thereby locking the bottom rod in a horizontally unfolded state to realize the locking of the folding bed.
  • the unlocking piece the force exerted by the forcing piece on the buckle can be released.
  • the buckle is released from the sliding piece and the sliding piece can slide on the bottom rod.
  • the unlocking makes the folding bed possible fold.
  • the buckle member is rotatably connected to the bottom rod, and the force applying member includes a limit plate provided on the buckle member and a locking spring whose two ends are respectively abutted on the limit plate and the bottom rod.
  • the elastic force generated by the locking spring is used as the force acting on the buckle.
  • the elastic force has the characteristics of automatic recovery and responsiveness. It can automatically generate force when no external force is applied, and at the same time the sliding member slips When the position of the buckle member needs to be buckled, the sliding member can be pushed and pulled to overcome the force to buckle, and this state can be maintained all the time.
  • the buckle member is rotatably connected to the bottom rod, and the force applying member is a torsion spring with two torsion arms respectively connected to the bottom rod and the buckle member.
  • the elastic force generated by the torsion spring acts as the force acting on the buckle.
  • the elastic force has the characteristics of automatic recovery and responsiveness. It can automatically generate force when no external force is applied, and at the same time the sliding member slips When the position of the buckle member needs to be buckled, the sliding member can be pushed and pulled to overcome the force to buckle, and this state can be maintained all the time.
  • a hook is provided on the buckle, a hook protrusion is provided on the sliding member, and the side of the hook bulge facing the buckle is a guide arc surface .
  • This arrangement realizes the snap connection between the snap member and the sliding member.
  • the unlocking member is rotatably connected to the control seat, a draw rope is connected between the control seat buckles, and one end of the draw rope is connected to an end of the unlocking member away from the rotation axis.
  • control seat is provided with a synchronization seat that can move up and down and has a plurality of racks distributed on the surface
  • unlocking member is rotatably connected to the synchronization seat
  • end of the bottom rod is provided with a rack meshing Synchronous gears.
  • the synchronization seat meshes with the synchronization gear at the end of the bottom rod, so that the multiple bottom rods in the folding bed can realize synchronized movement.
  • the unlocking member is rotatably connected to the top of the synchronization seat in a vertical direction, and a handle is fixedly installed on the unlocking member.
  • This setting through the handle setting, can not only be used to rotate the unlocking piece, but also can lift the synchronization seat to drive the bottom rod to turn over, making the operation more convenient.
  • a top cover is provided on the top of the synchronization seat, and the handle and the unlocking member are rotatably connected to the top cover through a connecting structure;
  • the connecting structure includes a connecting member and a limiting member, and the limiting member
  • the connecting piece and the unlocking piece are connected by a buckle and are respectively arranged on both sides of the top cover.
  • the connecting piece passes through the limiting piece and the unlocking piece from bottom to top and is pivotally connected to the handle, and the side wall of the connecting piece is provided with a limited The positioning protrusion abuts against the end of the limiting member away from the unlocking member.
  • the limiting member and the unlocking member can be fixed on both sides of the top cover through the buckle between the limiting member and the unlocking member, without affecting the rotation of the unlocking member; then the connecting member passes through the limiting member to connect with the handle
  • the way to fix the handle makes the installation very convenient.
  • supporting feet are provided on the sliding member.
  • This arrangement increases the supporting effect of the folding bed for children.
  • the second objective of the present invention is to provide a folding bed for children.
  • a folding bed for children includes the above-mentioned locking mechanism.
  • the present invention has the following beneficial effects: the folding bed is locked by the arrangement of the sliding member and the buckle, and the locked state is very stable.
  • the force is decomposed under the action of the first connecting rod and the second connecting rod, and the force acting on the sliding block and the buckle is very small, and the locked state of the two cannot be released.
  • you need to unlock the fold you can turn the handle and lift it up. It only needs two steps, which is very convenient.
  • Figure 1 is a schematic structural diagram of the first embodiment
  • Figure 2 is a first structural diagram of a sliding member and a locking member in the first embodiment
  • Figure 3 is a schematic diagram of the structure of the sliding member and the locking member in the first embodiment
  • Figure 4 is a schematic diagram of the structure of the control seat in the first embodiment
  • Figure 5 is a schematic diagram of the structure of the synchronization seat in the first embodiment
  • Figure 6 is a schematic diagram of the structure of the unlocking member and the handle in the first embodiment
  • FIG. 7 is a schematic diagram of the structure of the locking member and the force applying member in the second embodiment
  • Fig. 8 is a schematic structural diagram of the third embodiment.
  • Embodiment 1 A locking mechanism of a children’s folding bed, as shown in Figure 1, includes a bottom rod 1, a vertical rod support 2 and a control seat 3. Both ends of the bottom rod 1 are pivotally connected to the vertical rod supports 2 and On the control seat 3.
  • a sliding member 4 is sleeved on the bottom rod 1, and the sliding member 4 can slide on the bottom rod 1.
  • the sliding member 4 is provided with a supporting foot 43 perpendicular to the bottom rod 1.
  • a first connecting rod 41 and a second connecting rod 42 are respectively connected between the sliding member 4, the column support and the control seat 3, and both ends of the first connecting rod 41 are pivotally connected to the sliding member 4 and the column support. Both ends of the two connecting rods 42 are pivotally connected with the sliding member 4 and the control seat 3 respectively.
  • first connecting rod 41 and the second connecting rod 42 are connected to the same position of the sliding member 4.
  • a buckle 5 is rotatably connected to the bottom rod 1, and the buckle 5 is connected to the bottom rod 1 through a pin 51, and the pin 51 penetrates the upper and lower ends of the bottom rod 1.
  • the side of the buckle member 5 facing the sliding member 4 is provided with a hook 52 disposed toward the end surface of the bottom rod 1.
  • the side away from the sliding member 4 is formed by tilting the end surface of the bottom rod 1 Avoid the space so that the fastener 5 can rotate on the bottom rod 1.
  • a lock spring is installed in the avoidance space as the urging member 6, and the top end surface of the buckle member 5 is the limit plate 53, and the two ends of the lock spring are lowered on the side of the bottom rod 1 and the limit plate 53, respectively.
  • the elastic force of the locking spring acts on the buckle 5 to generate a force pressing the bottom rod 1 on the hook 52 of the buckle 5.
  • a baffle 54 is provided on the side of the buckle 5 away from the sliding member 4, and the baffle 54 encloses the escape space and positions the locking spring in the escape space.
  • the sliding member 4 is provided with a latching protrusion 44 that cooperates with the hook 52, and the side of the latching protrusion 44 facing the latching member 5 is a guide arc surface 441.
  • the control seat 3 is hollow, and a synchronization seat 7 that can move up and down is provided therein, and a plurality of racks 71 are provided on the side wall of the synchronization seat 7.
  • a synchronization gear 11 is provided at the end connecting the bottom rod 1 and the control base 3, and the synchronization gear 11 is inserted into the end surface of the bottom rod 1 and fixed by bolts. The synchronizing gear 11 meshes with the rack 71, and through the meshing, the synchronizing seat 7 is driven to perform a lifting action during the folding process.
  • a top cover 8 is installed on the top of the synchronization seat 7, and an unlocking member 9 is rotatably connected to the top cover 8.
  • the unlocking member 9 is in the shape of a long strip plate, and the rotating connection point is located at the middle position of the unlocking member 9. Both ends of the unlocking member 9 are provided with connecting holes 91.
  • a drawstring 10 is installed on the connecting hole 91, and the other end of the drawstring 10 is connected to the limiting plate 53 of the buckle 5. Wherein, referring to FIG. 2, both sides of the limit plate 53 are hollowed out for the connection of the drawstring 10.
  • a handle 92 that can drive the unlocking member 9 to rotate is installed on the unlocking member 9, and the handle 92 and the unlocking member 9 are connected by a connecting structure.
  • a circular hole 81 is provided on the top cover 8, and a cylindrical shaft is provided on the unlocking member 9 to cooperate with the circular hole 81.
  • the connecting structure includes a connecting piece 94 and a limiting piece 93.
  • the unlocking piece 9 is provided with a square hole.
  • the limiting piece 93 and the unlocking piece 9 are respectively arranged on both sides of the top cover 8.
  • the limiting piece 93 is inserted in the square hole and It is snap-connected with the unlocking member 9 to realize installation on the top cover 8.
  • a square hole is also provided in the limiting member 93, and the connecting member 94 is elongated and passes through the limiting member 93 and the unlocking member 9 from bottom to top, and is pivotally connected to the handle 92, on both side walls of the connecting member 94
  • a limit protrusion 941 is provided on the upper part to abut against the end of the limit member 93 away from the unlocking member 9.
  • the two sides of the connecting member 94 pass through to form a hollow structure, and the limiting protrusion 941 is arranged obliquely away from the side pivoted to the handle 92.
  • the hollow and inclined structure allows the limiting member 93 to move directly from the unlocking member 9 Inserted into the limiting member 93, through the elasticity generated by the hollow and the guiding generated by the inclination, the clamping connection between the limiting member 93 and the connecting member 94 is completed.
  • the sliding member 4 When unfolded, the sliding member 4 slides from the direction of the pole support 2 to the direction of the control seat 3. When fully deployed, the sliding member 4 is locked into the buckle 5, and the sliding of the sliding member 4 is Locked, it can no longer slide, keep the bottom bar 1 level.
  • the unlocking member 9 When it is necessary to fold, the unlocking member 9 is rotated by the handle 92, and the unlocking member 9 rotates to pull the rope 10, and the pulling force of the rope 10 pulls the fastener 5 to rotate against the elastic force of the locking spring. At this time, the limit of the sliding member 4 When the handle 92 is lifted up, the bottom rod 1 rotates under the action of the gear rack 71 meshing, thereby driving the sliding member 4 to slide toward the upright support 2.
  • Embodiment 2 As shown in Figure 7, the difference from Embodiment 1 is that in this embodiment, the urging member 6 is a torsion spring, the torsion spring is sleeved on the pin 51, and the two torsion arms of the torsion spring are respectively It is fixedly connected to the bottom rod 1 and the buckle 5.
  • the urging member 6 is a torsion spring
  • the torsion spring is sleeved on the pin 51
  • the two torsion arms of the torsion spring are respectively It is fixedly connected to the bottom rod 1 and the buckle 5.
  • Embodiment 3 A folding bed for children, as shown in FIG. 8, includes a side bar 101, a long cross bar 102, and the locking mechanism in Embodiment 1 or Embodiment 2.
  • the long cross bars 102 and the short cross bars 103 are all set in four to form a rectangular frame structure.
  • two long cross bars 102 are a group
  • two short cross bars 103 are a group to form the long and short sides of the children's folding bed frame.
  • a first middle cover 104 is provided between the two long cross bars 102, one end of the two long cross bars 102 is pivotally connected to both sides of the first middle cover 104, and a second middle cover 105 is provided between the two short cross bars 103.
  • One end of the short cross bar 103 is pivotally connected to both sides of the second middle cover 105 respectively.
  • Four pole supports 2 are provided on the control seat 3 of the locking mechanism, and four side poles 101 are also arranged and inserted on the four pole supports 2 respectively.
  • the two ends of the long crossbar 102 group are pivotally connected to the tops of the two side rods 101, and the two ends of the short crossbar 103 group are pivotally connected to the tops of the two side rods 101 to form a stable frame structure.
  • a protective cover 106 is provided on the top of the pole.

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  • General Health & Medical Sciences (AREA)
  • Pediatric Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

一种儿童折叠床及其锁定机构，包括底杆(1)、以及分别枢接于底杆(1)两端的立杆支座(2)和控制座(3)，其特征是：还包括套设在底杆(1)上的滑移件(4)、设于底杆(1)上受一作用力卡住滑移件(4)的卡扣件(5)、产生该作用力的施力件(6)、两端分别与立杆支座(2)和滑移件(4)枢接的第一连杆(41)、两端分别与控制座(3)和滑移件(4)枢接的第二连杆(42)、以及设于控制座(3)上并与卡扣件(5)连接用于克服该作用力的解锁件(9)。儿童折叠床折叠时第一连杆(41)和第二连杆(42)会带动滑移件(4)在底杆(1)上滑移；再通过卡扣件(5)使其在作用力的作用下可以卡住滑移件(4)，实现折叠床的锁定。通过解锁件(9)可以解除施力件(6)作用在卡扣件(9)上的作用力，此时卡扣件(9)与滑移件(4)解除卡接，滑移件(4)可以在底杆(1)上滑移，此时，解锁使得折叠床可以折叠。

Description

儿童折叠床及其锁定机构 技术领域
本发明涉及儿童折叠床领域，特别涉及一种儿童折叠床及其锁定机构。
背景技术
儿童折叠床被广泛应用于婴儿床和儿童游戏床使用，包括具有被竖直框架构件连接在一起的上部和下部水平框架构件的刚性框架，底面与侧壁通常被限定在框架构件之间，具有儿童可以被移动进出游戏床的上部开口。侧壁与底面通常由布置在框架构件上的织物材料构成。此外，框架构件可以被折叠，以容许游戏床被更容易地携带和存放。
专利申请号为201110347670.7、申请日为2011年11月7日的中国专利公开了一种用于可折叠游戏床框架的锁定机构，包括至少一个低位游戏床框架组件和被配置为在锁定位置和解锁位置之间转动的可转动锁定盘。在锁定位置，至少一个低位框架组件被固定在竖立位置并且防止其折叠。在解锁位置，至少一个低位框架组件被打开并且允许折叠。
上述专利的锁定机构通过转动锁定盘，当其转动到凹部位置时解除锁定效果，此时低位框架组件即可自由转动，实现折叠；而当其凹部与低位框架组件错位时，低位框架组件会被锁住，此时即无法转动。其虽然能够实现锁定的效果，但是，由于其锁定和解锁都是需要人工进行操作的，即在折叠游戏床从折叠状态展开使用时，需要人工转动进行锁定，在要折叠时再转动进行解锁，该设置使得锁定机构的使用较为繁琐。并且，由于其无法做到自动锁定，在使用时如果出现遗忘转动等情况时，折叠游戏床的使用会存在较大的安全隐患，特别是现今有很多台阶错层(卧式、客厅、厕所等不同区域间通过台阶进行干湿分离等设计造成)的房子，当折叠游戏床经过这些台阶错层时，如果锁定机构没有锁定，会造成折叠游戏床折叠，使婴儿和儿童在使用时被夹伤。
发明内容
本发明的目的一是提供一种儿童折叠床的锁定机构，具有自动锁定的效果。
本发明的上述技术目的一是通过以下技术方案得以实现的：
一种儿童折叠床的锁定机构，包括底杆、以及分别枢接于底杆两端的立杆支座和控制座，还包括套设在底杆上的滑移件、设于底杆上受一作用力卡住滑移件的卡扣件、产生所述作用力的施力件、两端分别与立杆支座和滑移件枢接的第一连杆、两端分别与控制座和滑移件枢接的第二连杆、以及设于控制座上并与卡扣件连接用于克服所述作用力的解锁件。
如此设置，在底杆上设置滑移件，同时通过第一连杆和第二连杆分别与立杆支座和控制座连接，不仅可以起到支撑、增加强度的效果，并使得在儿童折叠床折叠时第一连杆和第二连杆会带动滑移件在底杆上滑移；此时，再通过在在底杆上安装一卡扣件，使其在施力件产生的作用力的作用下可以卡住滑移件，使得折叠床在展开时，底杆在卡扣件的作用下定位，而由于卡扣件的定位，使得第一连杆和第二连杆的位置也固定，从而锁定底杆处于水平展开的状态，实现折叠床的锁定。通过解锁件可以解除施力件作用在卡扣件上的作用力，此时卡扣件与滑移件解除卡接，滑移件可以在底杆上滑移，此时，解锁使得折叠床可以折叠。
进一步优选为：所述卡扣件转动连接于底杆上，所述施力件包括设于卡扣件上的限位板和两端分别抵设于限位板和底杆上的锁定弹簧。
如此设置，通过锁定弹簧产生的弹性力作为作用在卡扣件上的作用力，弹性力具有自动恢复、反应灵敏的特性，其在不受外力时能够自动产生作用力，同时滑移件滑移到卡扣件位置需要进行卡扣时，通过滑移件的推拉可以克服作用力进行卡扣，并且能一直保持这个状态。
进一步优选为：所述卡扣件转动连接于底杆上，所述施力件为两扭转臂分别连接于底杆和卡扣件上的扭簧。
如此设置，通过扭簧产生的弹性力作为作用在卡扣件上的作用力，弹性 力具有自动恢复、反应灵敏的特性，其在不受外力时能够自动产生作用力，同时滑移件滑移到卡扣件位置需要进行卡扣时，通过滑移件的推拉可以克服作用力进行卡扣，并且能一直保持这个状态。
进一步优选为：所述卡扣件上设置有卡勾，所述滑移件上设置有与卡勾配合的卡接凸起，所述卡接凸起朝向卡扣件的一侧为导向弧面。
如此设置，实现卡扣件与滑移件的卡扣连接。
进一步优选为：所述解锁件转动连接于控制座上，所述控制座卡扣件间连接有拉绳，所述拉绳一端连接于解锁件远离转动轴心的一端。
如此设置，通过转动解锁件来拉动拉绳的方式，来克服弹性力，同时使得儿童折叠床的折叠也非常方便，只需要转动解锁件然后将控制座向上拉起即可。
进一步优选为：所述控制座内设置有可上下移动且表面分布有多个齿条的同步座，所述解锁件转动连接于同步座上，所述底杆端部设置有与齿条啮合的同步齿轮。
如此设置，同步座与底杆端部的同步齿轮啮合，使得折叠床中的多个底杆可以实现同步的移动。
进一步优选为：所述解锁件沿竖直方向转动连接于同步座顶部，所述解锁件上固定安装有提手。
如此设置，通过提手设置，既能用来转动解锁件，同时能够将同步座提起，来带动底杆翻转，使操作更加方便。
进一步优选为：所述同步座的顶部设置有顶盖，所述提手与解锁件间通过一连接结构转动连接于顶盖上；所述连接结构包括连接件和限位件，所述限位件和解锁件间卡扣连接且分别设于顶盖的两侧，所述连接件至下而上依次穿过限位件和解锁件与提手枢接、且连接件的侧壁上设置有限位凸起与限 位件远离解锁件的一端抵接。
如此设置，通过限位件和解锁件间卡扣使得限位件和解锁件可以固定在顶盖的两侧，同时不影响解锁件的转动；再通过连接件穿过限位件与提手连接的方式固定提手，使得安装非常方便。
进一步优选为：所述滑移件上设置有支撑脚。
如此设置，增加儿童折叠床的支撑效果。
本发明的目的二是提供一种儿童折叠床的。
本发明的上述技术目的二是通过以下技术方案得以实现的：
一种儿童折叠床，包括有上述的锁定机构。
综上所述，本发明具有以下有益效果：通过滑移件和卡扣件的设置来对折叠床进行锁定，锁定状态非常稳定，在掉落台阶、振动以及向上顶底杆等情况发生时，在第一连杆和第二连杆的作用下对力进行分解，作用在滑移块和卡扣件上的力非常小，无法解除两者的锁定状态。而在需要解锁折叠是时，转动提手后向上提即可，只需两步操作，非常方便。
附图说明
图1是实施例一的结构示意图；
图2是实施例一中滑移件和卡扣件的结构示意图一；
图3是实施例一中滑移件和卡扣件的结构示意图二；
图4是实施例一中控制座的结构示意图；
图5是实施例一同步座的结构示意图；
图6是实施例一中解锁件和提手的结构示意图；
图7是实施例二中卡扣件和施力件的结构示意图；
图8是实施例三的结构示意图。
图中，1、底杆；11、同步齿轮；2、立杆支座；3、控制座；4、滑移件；41、第一连杆；42、第二连杆；43、支撑脚；44、卡接凸起；441、导向弧面；5、卡扣件；51、销轴；52、卡勾；53、限位板；54、挡板；6、施力件；7、同步座；71、齿条；8、顶盖；81、圆孔；9、解锁件；91、连接孔；92、提手；93、限位件；94、连接件；941、限位凸起；10、拉绳；101、侧杆；102、长横杆；103、短横杆；104、第一中间盖；105、第二中间盖；106、保护盖。
具体实施方式
以下结合附图对本发明作进一步详细说明。
实施例1：一种儿童折叠床的锁定机构，如图1所示，包括底杆1、立杆支座2和控制座3，底杆1的两端分别枢接于立杆支座2和控制座3上。
在底杆1上套设有一滑移件4，滑移件4可于底杆1上滑移，结合附图2，在滑移件4上设置有与底杆1垂直设置的支撑脚43。
滑移件4与立柱支座和控制座3间分别连接有一第一连杆41和第二连杆42，第一连杆41的两端分别与滑移件4和立柱支座枢接，第二连杆42的两端分别与滑移件4和控制座3枢接。
其中，第一连杆41和第二连杆42连接于滑移件4的同一位置上。
如图1和图3所示，底杆1上转动连接有一卡扣件5，卡扣件5通过一销轴51与底杆1连接，销轴51贯穿底杆1的上下端。卡扣件5朝向滑移件4的一侧设置有朝向底杆1端面设置的卡勾52，如图2和图3所示，远离滑移件4的一侧于底杆1端面翘起形成避让空间，使得卡扣件5可以在底杆1上转动。
在避让空间内安装有锁定弹簧作为施力件6，卡扣件5翘起的顶端端面 为限位板53，锁定弹簧的两端分别低设在底杆1侧面和限位板53上。锁定弹簧的弹性力作用在卡扣件5上，在卡扣件5的卡勾52上产生向底杆1压设的作用力。
在卡扣件5远离滑移件4的一侧设置有挡板54，挡板54围住避让空间将锁定弹簧定位在避让空间内。
参照图2，滑移件4上设置有与卡勾52配合的卡接凸起44，卡接凸起44朝向卡扣件5的一侧为导向弧面441。
如图4和图5所示，在控制座3呈中空设置，其内设置有可上下移动的同步座7，同步座7的侧壁上设置有多个齿条71。在底杆1与控制座3连接的一端设置有同步齿轮11，同步齿轮11插设于底杆1的端面并通过螺栓固定。同步齿轮11与齿条71啮合，通过啮合使得在折叠过程中带动同步座7做升降动作。
如图4所示，在同步座7的顶部安装有顶盖8，顶盖8上转动连接有解锁件9，解锁件9呈长条形板状，转动连接点位于解锁件9的中间位置，在解锁件9的两端均设置有连接孔91，结合附图1所示，连接孔91上安装有拉绳10，拉绳10另一端连接于卡扣件5的限位板53上。其中，参照图2，限位板53两侧呈镂空设置供拉绳10连接。
如图4所示，解锁件9上安装有可以带动解锁件9转动的提手92，提手92与解锁件9间通过一连接结构连接。
参照图6，在顶盖8上设置有圆孔81，解锁件9上设置有圆筒转轴与圆孔81配合。
连接结构包括连接件94和限位件93，解锁件9内设有方形孔，限位件93和解锁件9分别设于顶盖8的两侧，限位件93插设于方形孔上并与解锁件9卡接实现在顶盖8上安装。
在限位件93内也设置有方形孔，连接件94呈长条形且至下而上依次穿 过限位件93和解锁件9与提手92枢接，在连接件94的两侧壁上均设置有限位凸起941与限位件93远离解锁件9的一端抵接。
其中，连接件94两侧贯穿形成中空结构，限位凸起941远离与提手92枢接的一侧呈倾斜设置，通过中空和倾斜设置结构，使得限位件93可以从解锁件9方向直接插设到限位件93中，通过中空产生的弹性以及倾斜产生的导向，完成限位件93与连接件94间的卡接。
展开时，滑移件4从立杆支座2方向向控制座3方向滑移，当完全展开时，滑移件4卡入到卡扣件5中，此时滑移件4的滑移被锁定，其无法再滑移，保持底杆1水平状态。
需要折叠时，通过提手92转动解锁件9，解锁件9转动拉动拉绳10，提过拉绳10的拉力拉动卡扣件5克服锁定弹簧的弹性力转动，此时滑移件4的限位状态接触，在向上提提手92时，在齿轮齿条71啮合的作用下，底杆1发生转动，从而带动滑移件4朝向立杆支座2方向滑移。
实施例2：如图7所示，与实施例1的不同之处在于，本实施例中施力件6为扭簧，扭簧套设在销轴51上，且扭簧的两扭转臂分别固定连接在底杆1和卡扣件5上。
实施例3：一种儿童折叠床，如图8所示，包括侧杆101、长横杆102、以及实施例1或实施例2中的锁定机构。
长横杆102短横杆103均设置为四个、拼构成长方形框架结构，其中，两长横杆102为一组、两短横杆103为一组构成儿童折叠床框架的长边和短边，两长横杆102间设置有第一中间盖104，两长横杆102的一端分别枢接在第一中间盖104的两侧，两短横杆103间设置有第二中间盖105，两短横杆103的一端分别枢接在第二中间盖105的两侧。
锁定机构的控制座3上设置四个立杆支座2，侧杆101也设置为四个、并分别插设在四个立杆支座2上。长横杆102组的两端分别与两侧杆101顶部枢接，短横杆103组的两端分别与两侧杆101顶部枢接形成稳定的框架结 构。
在立杆的顶部均设置有保护盖106。
本具体实施例仅仅是对本发明的解释，其并不是对本发明的限制，本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改，但只要在本发明的保护范围内都受到专利法的保护。

Claims (10)

  1. 一种儿童折叠床的锁定机构，包括底杆(1)、以及分别枢接于底杆(1)两端的立杆支座(2)和控制座(3)，其特征是：还包括套设在底杆(1)上的滑移件(4)、设于底杆(1)上受一作用力卡住滑移件(4)的卡扣件(5)、产生所述作用力的施力件(6)、两端分别与立杆支座(2)和滑移件(4)枢接的第一连杆(41)、两端分别与控制座(3)和滑移件(4)枢接的第二连杆(42)、以及设于控制座(3)上并与卡扣件(5)连接用于克服所述作用力的解锁件(9)。
  2. 根据权利要求1所述的儿童折叠床的锁定机构，其特征是：所述卡扣件(5)转动连接于底杆(1)上，所述施力件(6)包括设于卡扣件(5)上的限位板(53)和两端分别抵设于限位板(53)和底杆(1)上的锁定弹簧。
  3. 根据权利要求1所述的儿童折叠床的锁定机构，其特征是：所述卡扣件(5)转动连接于底杆(1)上，所述施力件(6)为两扭转臂分别连接于底杆(1)和卡扣件(5)上的扭簧。
  4. 根据权利要求1或2或3所述的儿童折叠床的锁定机构，其特征是：所述卡扣件(5)上设置有卡勾(52)，所述滑移件(4)上设置有与卡勾(52)配合的卡接凸起(44)，所述卡接凸起(44)朝向卡扣件(5)的一侧为导向弧面(441)。
  5. 根据权利要求1所述的儿童折叠床的锁定机构，其特征是：所述解锁件(9)转动连接于控制座(3)上，所述控制座(3)卡扣件(5)间连接有拉绳(10)，所述拉绳(10)一端连接于解锁件(9)远离转动轴心的一端。
  6. 根据权利要求1或5所述的儿童折叠床的锁定机构，其特征是：所述控制座(3)内设置有可上下移动且表面分布有多个齿条(71)的同步座(7)，所述解锁件(9)转动连接于同步座(7)上，所述底杆(1)端部设置有与齿条(71)啮合的同步齿轮(11)。
  7. 根据权利要求6所述的儿童折叠床的锁定机构，其特征是：所述解锁件(9)沿竖直方向转动连接于同步座(7)顶部，所述解锁件(9)上固定安装有提手(92)。
  8. 根据权利要求6所述的儿童折叠床的锁定机构，其特征是：所述同步座(7)的顶部设置有顶盖(8)，所述提手(92)与解锁件(9)间通过一连接结构转动连接于顶盖(8)上；所述连接结构包括连接件(94)和限位件(93)，所述限位件(93)和解锁件(9)间卡扣连接且分别设于顶盖(8)的两侧，所述连接件(94)至下而上依次穿过限位件(93)和解锁件(9)与提手(92)枢接、且连接件(94)的侧壁上设置有限位凸起(941)与限位件(93)远离解锁件(9)的一端抵接。
  9. 根据权利要求1所述的儿童折叠床的锁定机构，其特征是：所述滑移件(4)上设置有支撑脚(43)。
  10. 一种儿童折叠床，其特征是：包括有权利要求1-9中任意一项所述的锁定机构。
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CN102973046A (zh) * 2011-09-02 2013-03-20 儿童二代公司 用于游戏床框架的锁定机构
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