CN115153261A

CN115153261A - Children game enclosure frame and side rod locking mechanism of crib

Info

Publication number: CN115153261A
Application number: CN202210682836.9A
Authority: CN
Inventors: 张兴荣
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-10-11

Abstract

The invention relates to a children game surrounding frame and a side rod locking mechanism of a children bed, wherein the children game surrounding frame is provided with a plurality of side rods and a locking mechanism, each side rod comprises a first side rod, a second side rod and an intermediate connecting piece which is respectively pivoted with the first side rod and the second side rod, the locking mechanism comprises a first lock pin which is connected with the first side rod in a sliding way, a first lock groove which is arranged on the intermediate connecting piece and a first elastic piece, the intermediate connecting piece is also provided with a first guide cambered surface, in the process of converting the children game surrounding frame from an unfolding state to a folding state, the first lock pin is pressed on the first guide cambered surface in a sliding way, and the elastic force of the first elastic piece enables the first lock pin to tend to slide towards the extending direction of the first side rod. When the child game enclosure frame or the child bed is switched from the folding state to the unfolding state, the unfolding action can be completed only by rotating the first side rod and the second side rod relative to the middle connecting piece, so that the child game enclosure frame or the child bed is simple and convenient to operate and labor-saving.

Description

Children game enclosure frame and side rod locking mechanism of crib

Technical Field

The invention relates to the field of children products, in particular to a children game enclosure frame and a side rod locking mechanism of a children bed.

Background

A child play enclosure having a collapsed state and an expanded state, generally comprising a foldable and expandable upper frame, a plurality of vertically arranged uprights and a bottom frame assembly, the upper frame comprising a plurality of side bars, each side bar comprising a first side bar, an intermediate connector and a second side bar, the first side bar and the second side bar being pivotally connected to the intermediate connector, respectively, the child play enclosure further comprising a locking mechanism for locking the first side bar and the second side bar in the expanded state, the locking mechanism in the prior art comprising a first locking pin slidably connected to the first side bar, a first locking slot provided in the intermediate connector, a first resilient member for urging the first locking pin towards insertion into the first locking slot, a second locking pin slidably connected to the second side bar, a second locking slot provided in the intermediate connector, a first resilient member for urging the second locking pin towards insertion into the second locking slot, a first traction cable connected to the first locking pin and a second traction cable connected to the second locking pin, the second traction cable connected to the second locking slot, the first resilient member and the second locking slot being adapted to release the first locking pin and second locking bar and the second locking mechanism, respectively, the second locking mechanism being adapted to release the first and second locking mechanism from the second locking slot, the second locking mechanism, the first and the second locking mechanism, and the second locking mechanism being adapted to release the second locking mechanism. However, in the actual operation process, it is found that when the child game enclosure needs to be unfolded, the first pull rope and the second pull rope need to be pulled all the time to enable the first lock pin and the second lock pin to slide in the direction of being separated from the first lock groove and the second lock groove respectively, so that the operation is inconvenient and labor is wasted.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a child game enclosure frame which is more convenient to operate and saves labor when the folding state is switched to the unfolding state.

A second object of the invention is to provide a cot side bar locking mechanism.

In order to solve the technical problems, the invention adopts the following technical scheme:

a child play enclosure having an extended position and a collapsed position, the extended position comprising:

the upper frame comprises a plurality of side rods, each side rod comprises a first side rod, a middle connecting piece and a second side rod, and one end part of the first side rod and one end part of the second side rod are respectively in pivot connection with the middle connecting piece;

a plurality of vertical rods, wherein the other end of the first side rod and the other end of the second side rod in each side rod are respectively and pivotally connected to the upper parts of two adjacent vertical rods;

a bottom frame assembly including a central chassis and a plurality of bottom struts, one end of each bottom strut being pivotally connected to said central chassis and the other end of each bottom strut being pivotally connected to the lower portion of each said upright;

a locking mechanism having a locked operational state and an unlocked operational state, the locking mechanism comprising:

the locking device comprises a first locking pin, a first locking groove, a first elastic piece, a second locking pin, a second locking groove, a second elastic piece and an unlocking piece, wherein the first locking pin is connected to the first side rod in a sliding mode;

when the locking mechanism is in a locking working state, the first elastic piece enables the first locking end part to extend out of one end part of the first side rod and be inserted into the first locking groove, and the second elastic piece enables the second locking end part to extend out of one end part of the second side rod and be inserted into the second locking groove; when the unlocking piece is operated to enable the locking mechanism to be in an unlocking working state, the first lock pin is enabled to be separated from the first lock groove by overcoming the elastic force of the first elastic piece, the second lock pin is enabled to be separated from the second lock groove by overcoming the elastic force of the second elastic piece, and the first side rod and the second side rod are allowed to rotate relative to the middle connecting piece;

the middle connecting piece is also provided with a first guiding arc surface and a second guiding arc surface, the first side rod and the second side rod rotate relative to the middle connecting piece in the process of converting the child game surrounding frame from the unfolding state to the folding state, the first locking end part is slidably pressed on the first guiding arc surface, and the elastic force applied to the first locking pin by the first elastic piece enables the first locking end part to tend to slide towards the extending direction of the first side rod; the second locking end part is slidably pressed on the second guide arc surface, and the elastic force applied to the second lock pin by the second elastic piece enables the second locking end part to tend to slide towards the extending direction of the second side rod.

According to some embodiments of the invention, the first locking end portion also has a first locking end guide contour cooperating with the first guide contour, and the second locking end portion also has a second locking end guide contour cooperating with the second guide contour; in the process that the first side rod and the second side rod rotate relative to the middle connecting piece, the first locking end guide arc surface is pressed against the first guide arc surface, and the second locking end guide arc surface is pressed against the second guide arc surface.

Furthermore, a first roller is arranged at the edge of the first guide cambered surface, the first roller is in pivot connection with the middle connecting piece through a first roller shaft, a second roller is arranged at the edge of the second guide cambered surface, and the second roller is in pivot connection with the middle connecting piece through a second roller shaft; in the process that the first side rod rotates relative to the middle connecting piece, the first locking end guide arc surface is firstly in rolling contact with the first roller and then in sliding contact with the first guide arc surface; in the process that the second side rod rotates relative to the middle connecting piece, the second locking end guide arc surface is firstly in rolling contact with the second roller and then in sliding contact with the second guide arc surface.

When the locking mechanism is in a locking working state, the first roller is positioned below a part of the first lock pin extending out of the first side rod and is in contact with the first lock pin, and the second roller is positioned below a part of the second lock pin extending out of the second side rod and is in contact with the second lock pin; in the process of switching the locking mechanism from the locking working state to the unlocking working state, the first roller is connected with the first lock pin in a rolling way, and the second roller is connected with the second lock pin in a rolling way.

In some embodiments of the present invention, during the process of switching the locking mechanism from the locking operating state to the unlocking operating state, a portion of the first roller, which is in rolling connection with the lower bottom surface of the first lock pin, is referred to as a first roller rolling surface, and the first roller rolling surface is a plane; the part of the second roller, which is connected with the lower bottom surface of the second lock pin in a rolling way, is called a second roller rolling surface, and the second roller rolling surface is a plane; the first locking end portion is further provided with a first transition inclined surface located between the first locking end guiding arc surface and the first roller rolling surface, and the second locking end portion is further provided with a second transition inclined surface located between the second locking end guiding arc surface and the second roller rolling surface.

Furthermore, the rotation axis of the first side rod and the middle connecting piece, the rotation axis of the second side rod and the middle connecting piece, the axis of the first roller shaft and the axis of the second roller shaft are arranged in parallel.

According to some embodiments of the present invention, the one end of the first side lever is pivotally connected to the intermediate link through a first side lever rotating shaft, and the first guiding arc surface is an arc surface formed around an axis of the first side lever rotating shaft; the end part of the second side rod is connected with the pivot of the middle connecting piece through a second side rod rotating shaft, and the second guide arc surface is an arc surface formed by taking the axis of the second side rod rotating shaft as the center of a circle.

According to some embodiments of the present invention, two end portions of the first elastic member respectively press against between the first lock pin and the first side bar, and the first elastic member is a compression spring; two end parts of the second elastic part are respectively pressed between the second lock pin and the second side rod, and the second elastic part is a pressure spring.

According to some embodiments of the present invention, the end of the first side bar is pivotally connected to the middle connecting member by a first side bar rotating shaft, the first lock pin has a first bar-shaped guide hole extending along a sliding direction thereof, and the first side bar rotating shaft passes through the first bar-shaped guide hole; the end part of the second side rod is pivotally connected with the middle connecting piece through a second side rod rotating shaft, a second strip-shaped guide hole extending along the sliding direction of the second lock pin is formed in the second lock pin, and the second side rod rotating shaft penetrates through the second strip-shaped guide hole.

According to some embodiments of the invention, the locking mechanism further comprises a first pull cable coupled to the first locking pin and a second pull cable coupled to the second locking pin, the first pull cable is disposed within the first side bar and coupled to the unlocking member, and the second pull cable is disposed within the second side bar and coupled to the unlocking member.

In the invention, the child game enclosure frame can be used as an enclosure frame structure of a child bed, and when the child game enclosure frame is used as the child bed, a bed board or other structural components capable of supporting the sleeping posture of a child are arranged in the child game enclosure frame.

The second technical scheme adopted by the invention is as follows: a side bar locking mechanism for a child's bed, the locking mechanism having a locking operating condition and an unlocking operating condition, the locking mechanism comprising a first side bar, an intermediate link and a second side bar, one end of the first side bar and one end of the second side bar being pivotally connected to the intermediate link, respectively;

the locking mechanism further comprises a first lock pin connected to the first side rod in a sliding mode, a first lock groove formed in the middle connecting piece, a first elastic piece pressed on the first lock pin in a butting mode, a second lock pin connected to the second side rod in a sliding mode, a second lock groove formed in the middle connecting piece in a butting mode, a second elastic piece pressed on the second lock pin in a butting mode and an unlocking piece, the first lock pin is provided with a first locking end portion, and the second lock pin is provided with a second locking end portion;

when the locking mechanism is in a locking working state, the first elastic piece enables the first locking end part to extend out of one end part of the first side rod and be inserted into the first locking groove, and the second spring enables the second locking end part to extend out of one end part of the second side rod and be inserted into the second locking groove; when the unlocking piece is operated to enable the locking mechanism to be in an unlocking working state, the first locking end part is separated from the first locking groove by overcoming the elastic force of the first elastic piece, and the second locking end part is separated from the second locking groove by overcoming the elastic force of the second elastic piece, so that the first side rod and the second side rod are allowed to rotate relative to the middle connecting piece;

the middle connecting piece is also provided with a first guiding arc surface and a second guiding arc surface, the first side rod and the second side rod rotate relative to the middle connecting piece in the process of changing from unfolding to folding relative to the middle connecting piece, the first locking end part is pressed on the first guiding arc surface in a sliding mode, and the first locking end part tends to slide towards the extending direction of the first side rod due to the elastic force applied to the first locking pin by the first elastic piece; the second locking end part is slidably pressed on the second guide arc surface, and the elastic force applied to the second lock pin by the second elastic piece enables the second locking end part to tend to slide towards the extending direction of the second side rod.

Furthermore, a first roller is arranged at the edge of the first guide arc surface, the first roller is in pivot connection with the intermediate connecting piece through a first roller shaft, a second roller is arranged at the edge of the second guide arc surface, and the second roller is in pivot connection with the intermediate connecting piece through a second roller shaft; in the process that the first side rod rotates relative to the middle connecting piece, the first locking end guide arc surface is firstly in rolling contact with the first roller and then in sliding contact with the first guide arc surface; in the process that the second side rod rotates relative to the middle connecting piece, the second locking end guiding arc surface is firstly in rolling contact with the second roller and then in sliding contact with the second guiding arc surface.

Still further, when the locking mechanism is in a locking working state, the first roller is positioned below a part of the first lock pin extending out of the first side rod and is in contact with the first lock pin, and the second roller is positioned below a part of the second lock pin extending out of the second side rod and is in contact with the second lock pin; in the process of switching the locking mechanism from the locking working state to the unlocking working state, the first roller is connected with the first lock pin in a rolling way, and the second roller is connected with the second lock pin in a rolling way.

In some embodiments, during the process of switching the locking mechanism from the locking working state to the unlocking working state, the part of the first roller, which is in rolling connection with the lower bottom surface of the first lock pin, is called a first roller rolling surface, and the first roller rolling surface is a plane; the part of the second roller, which is connected with the lower bottom surface of the second lock pin in a rolling way, is called a second roller rolling surface, and the second roller rolling surface is a plane; the first locking end portion is further provided with a first transition inclined surface located between the first locking end guide arc surface and the first roller rolling surface, and the second locking end portion is further provided with a second transition inclined surface located between the second locking end guide arc surface and the second roller rolling surface.

Furthermore, the rotating axes of the first side rod and the middle connecting piece, the rotating axes of the second side rod and the middle connecting piece, the axes of the first roller shaft and the second roller shaft are arranged in parallel.

According to some embodiments of the present invention, the one end of the first side lever is pivotally connected to the intermediate link through a first side lever rotating shaft, and the first guiding arc surface is an arc surface formed around an axis of the first side lever rotating shaft; the end part of the second side rod is connected with the pivot of the middle connecting piece through a second side rod rotating shaft, and the second guide cambered surface is a cambered surface formed by taking the axis of the second side rod rotating shaft as the center of a circle.

According to some embodiments of the present invention, two end portions of the first elastic member respectively abut against between the first lock pin and the first side rod, and the first elastic member is a compression spring; two end parts of the second elastic part are respectively pressed between the second lock pin and the second side rod, and the second elastic part is a pressure spring.

According to some embodiments of the present invention, the one end of the first side lever is pivotally connected to the intermediate link by a first side lever shaft, the first lock pin has a first bar-shaped guide hole extending in a sliding direction thereof, and the first side lever shaft passes through the first bar-shaped guide hole; the end part of the second side rod is pivotally connected with the middle connecting piece through a second side rod rotating shaft, a second strip-shaped guide hole extending along the sliding direction of the second lock pin is formed in the second lock pin, and the second side rod rotating shaft penetrates through the second strip-shaped guide hole.

According to some embodiments of the invention, the locking mechanism further comprises a first pull cable coupled to the first locking pin and a second pull cable coupled to the second locking pin, the first pull cable disposed within the first side bar and coupled to the unlocking member, the second pull cable disposed within the second side bar and coupled to the unlocking member.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

according to the child game enclosure frame or the child bed, due to the arrangement of the first guide arc surface and the second guide arc surface on the middle connecting piece, when the first side rod and the second side rod rotate relative to the middle connecting piece, the first locking end part of the first lock pin is in sliding pressing contact with the first guide arc surface, and the second locking end part of the second lock pin is in sliding pressing contact with the second guide arc surface, so that when the child game enclosure frame or the child bed is switched from a folding state to an unfolding state, the unfolding action can be completed only by rotating the first side rod and the second side rod relative to the middle connecting piece, the operation is simple and convenient, and labor is saved.

Drawings

FIG. 1 is a perspective view of the child game enclosure of embodiment 1 in an expanded state;

fig. 2 is a perspective structural view of the child game enclosure frame of the embodiment 1 in a half-folded state;

FIG. 3 is a perspective view of the child game enclosure of embodiment 1 in a folded state;

FIG. 4 is a top view of the child play enclosure of embodiment 1 in an expanded configuration;

FIG. 5 is an enlarged view of the A-position in FIG. 4;

FIG. 6 is an enlarged view of the front view structure at A in FIG. 4;

FIG. 7 is an enlarged view taken along line B-B of FIG. 4 at A (with the locking mechanism in the locked condition);

FIG. 8 is an enlarged view of the cross-sectional view taken along line B-B at point A in FIG. 4 (when the first and second pins of the locking mechanism are disengaged from the first and second locking grooves, respectively);

FIG. 9 is an enlarged view taken along line B-B of FIG. 4 at A (with the locking mechanism in the unlocked position);

FIG. 10 is an enlarged sectional view of the first lock pin of the child game enclosure in the embodiment 1 (the sectional view is along the direction B-B in FIG. 4);

FIG. 11 is an enlarged sectional view of the second latch of the child play enclosure of embodiment 1 (the sectional view is along the direction B-B in FIG. 4);

fig. 12 is a perspective structural view of the child bed of embodiment 2 (cloth cover not shown);

in the figure: 1. a side bar; 1a, a first side rod; 1b, an intermediate connecting piece; 1c, a second side rod; 2. erecting a rod; 3. a central chassis; 4. a bottom stay; 5. a first lock pin; 5a, a first locking end; 5b, a first locking end guide cambered surface; 5c, a first roller rolling surface; 5d, a first transition inclined plane; 6. a first locking groove; 7. a first elastic member; 8. a second lock pin; 8a, a second locking end; 8b, a second locking end guide arc surface; 8c, a second roller rolling surface; 8d, a second transition inclined plane; 9. a second locking groove; 10. a second elastic member; 11. a first guiding cambered surface; 12. a second guiding arc surface; 13. a first roller; 14. a second roller; 15. a first roller shaft; 16. a second roller shaft; 17. a first side bar rotating shaft; 18. a second side bar rotating shaft; 19. a first bar-shaped guide hole; 20. a second strip-shaped guide hole; 21. a first traction cable; 22. a second traction cable; 23. a bed board.

Detailed Description

The invention is further described with reference to the following drawings and specific embodiments:

example 1

The child game enclosure provided by the embodiment has an unfolded state and a folded state as shown in fig. 1 to 11, and in the unfolded state, the child game enclosure comprises an upper frame, a plurality of vertical rods 2 vertically arranged, a bottom frame assembly and a locking mechanism.

The upper frame comprises a plurality of side rods 1, in this example, the upper frame comprises two pairs of side rods 1 which are oppositely arranged, each side rod 1 comprises a first side rod 1a, a middle connecting piece 1b and a second side rod 1c, the inner end part of the first side rod 1a is pivotally connected with the middle connecting piece 1b through a first side rod rotating shaft 17, and the inner end part of the second side rod 1c is pivotally connected with the middle connecting piece 1b through a second side rod rotating shaft 18. The outer end of the first side rod 1a and the outer end of the second side rod 1c in each side rod 1 are respectively pivoted to the upper parts of two adjacent vertical rods 2.

Referring to figure 1, the base frame assembly comprises a central chassis 3 and a plurality of base struts 4, the inner ends of each base strut 4 being pivotally connected to the central chassis 3 respectively, and the outer ends of each base strut 4 being pivotally connected to the lower portion of each upright 2 respectively.

Referring to fig. 6 to 8, the locking mechanism has a locking operation state and an unlocking operation state, and includes a first lock pin 5 slidably connected to the inside of the first side bar 1a, a first lock groove 6 formed in the intermediate connecting member 1b, a first elastic member 7 having both ends respectively abutting against the first lock pin 5 and the first side bar 1a, and a first pulling rope 21 connected to the first lock pin 5 and disposed in the first side bar 1a, the first lock pin 5 is provided with a first strip-shaped guide hole 19 extending in a sliding direction thereof, the first side bar rotating shaft 17 is disposed through the first strip-shaped guide hole 19, and the first lock pin 5 has a first locking end 5a.

The locking mechanism further comprises a second lock pin 8 connected inside the second side rod 1c in a sliding mode, a second lock groove 9 formed in the middle connecting piece 1b, a second elastic piece 10 with two end portions respectively abutting against the second lock pin 8 and the second side rod 1c, and a second traction rope 22 connected with the second lock pin 8 and arranged in the second side rod 1c, a second strip-shaped guide hole 20 extending along the sliding direction of the second lock pin 8 is formed in the second lock pin 8, a second side rod rotating shaft 18 penetrates through the second strip-shaped guide hole 20, and the second lock pin 8 is provided with a second locking end portion 8a.

The locking mechanism further comprises unlocking means connected to the first traction cable 21 and the second traction cable 22, respectively, which unlocking means are arranged in this case on the central chassis 3 (not shown in the figures). In other embodiments, the unlocking member may be disposed at any other position of the child game enclosure, such as the upright bars 2, the bottom support rods 4, and the like.

When the locking mechanism is in a locking working state, the first elastic piece 7 enables the first locking end part 5a to extend out of the inner end part of the first side rod 1a and be inserted into the first locking groove 6, and the second elastic piece 10 enables the second locking end part 8a to extend out of the inner end part of the second side rod 1c and be inserted into the second locking groove 9; when the unlocking member is operated to unlock the locking mechanism, the first pulling cable 21 pulls the first locking pin 5 to overcome the elastic force of the first elastic member 7 to disengage the first locking pin 5 from the first locking groove 6, and the second pulling cable 22 pulls the second locking pin 8 to overcome the elastic force of the second elastic member 10 to disengage the second locking pin 8 from the second locking groove 9, allowing the first side lever 1a and the second side lever 1c to rotate relative to the intermediate link 1 b.

Referring to fig. 9, the middle connecting member 1b is further provided with a first guiding arc surface 11 and a second guiding arc surface 12, the first guiding arc surface 11 is an arc surface formed by taking the axis of the first side rod rotating shaft 17 as the center of a circle, the second guiding arc surface 12 is an arc surface formed by taking the axis of the second side rod rotating shaft 18 as the center of a circle, in the process of converting the child game enclosure from the unfolded state to the folded state, the first side rod 1a and the second side rod 1c also rotate relative to the middle connecting member 1b, the first locking end portion 5a is slidably pressed against the first guiding arc surface 11, and the elastic force applied to the first lock pin 5 by the first elastic member 7 enables the first locking end portion 5a to tend to slide in the direction in which the inner end portion of the first side rod 1a extends out; the second locking end 8a is slidingly pressed against the second guiding arc 12, and the elastic force exerted by the second elastic member 10 on the second lock pin 8 causes the second locking end 8a to tend to slide in a direction in which the inner end of the second side bar 1c protrudes.

When the child game enclosure frame is switched from the unfolded state to the folded state, the unlocking piece is operated to enable the first traction rope 21 to pull the first lock pin 5 so as to enable the first lock pin 5 to be separated from the first lock groove 6, meanwhile, the second traction rope 22 pulls the second lock pin 8 so as to enable the second lock pin 8 to be separated from the second lock groove 9, then the first side rod 1a and the second side rod 1b are rotated to enable the first locking end part 5a to be slidably abutted against the first guide arc-shaped surface 11 and the second locking end part 8a to be slidably abutted against the second guide arc-shaped surface 12, and after the child game enclosure frame is folded, the first locking end part 5a is still abutted against the first guide arc-shaped surface 11 and the second locking end part 8a is also still abutted against the second guide arc-shaped surface 12; when the children game enclosure is switched from the folded state to the unfolded state, only the first side rod 1a and the second side rod 1c need to rotate relative to the middle connecting piece 1b, the first locking end part 5a slides and presses on the first guiding arc-shaped surface 11, the second locking end part 8a slides and presses on the second guiding arc-shaped surface 12, when the first side rod 1a and the second side rod 1c rotate to the unfolded state, the first locking end part 5a and the second locking end part 8a respectively break away from the first guiding arc-shaped surface 11 and the second guiding arc-shaped surface 12, the first locking pin 5 and the second locking pin 8 respectively slide on the first side rod 1a and the second side rod 1c under the action of elastic force of the first elastic piece 7 and the second elastic piece 10, the first locking end part 5a and the second locking end part 8a respectively slide out of the inner end part of the first side rod 1a and the inner end part of the second side rod 1c and are respectively inserted into the first locking groove 6 and the second locking groove 9, the children game enclosure finishes the unfolding, and the children game enclosure is convenient and labor-saving in operation.

In this example, referring to fig. 10, the first locking end 5a has a first locking end guiding arc 5b that cooperates with the first guiding arc 11; referring to fig. 11, the second locking end portion 8a has a second locking end guiding arc surface 8b matched with the second guiding arc surface 12, and during the rotation of the first side bar 1a and the second side bar 1c relative to the middle connecting member 1b, the first locking end guiding arc surface 5b is pressed against the first guiding arc surface 11, and the second locking end guiding arc surface 8b is pressed against the second guiding arc surface 12.

The upper edge of the first guiding cambered surface 11 is provided with a first roller 13, the first roller 13 is pivotally connected with the middle connecting piece 1b through a first roller shaft 15, the upper edge of the second guiding cambered surface 12 is provided with a second roller 14, the second roller 14 is pivotally connected with the middle connecting piece 1b through a second roller shaft 16, and the first roller shaft 15, the second roller shaft 16, a first side rod rotating shaft 17 and a second side rod rotating shaft 18 are arranged in parallel.

In the process that the child game enclosure frame is switched from the unfolding state to the folding state and the first side rod 1a rotates relative to the middle connecting piece 1b, the first locking end guide arc-shaped surface 5b is firstly in rolling contact with the first roller 13 and then in sliding contact with the first guide arc-shaped surface 11; in the process of switching the child game enclosure frame from the unfolded state to the folded state and in the process of rotating the second side rod 1c relative to the middle connecting piece 1b, the second locking end guide arc-shaped surface 8b firstly makes rolling contact with the second roller 14 and then makes sliding contact with the second guide arc-shaped surface 12. The arrangement of the first roller 13 and the second roller 14 enables the locking mechanism to be in a conversion process from a locking state to an unlocking state, the first lock pin 5 and the second lock pin 8 are respectively in rolling contact with the first roller 13 and the second roller 14, friction generated by sliding contact of the first lock pin 5 and the second lock pin 8 with the first roller 13 and the second roller 14 is lower, and labor is saved when the first lock pin 5 and the second lock pin 8 are pulled to be retracted into the first side rod 1a and the second side rod 1 c.

In this example, in the process of switching the locking mechanism from the locked state to the unlocked state, the portion of the first roller 13 that is in rolling contact with the lower bottom surface of the first lock pin 5 is referred to as a first roller rolling surface 5c, and the first roller rolling surface 5c is a plane; the part of the second roller 14 which is connected with the lower bottom surface of the second lock pin 8 in a rolling way is called a second roller rolling surface 8c, and the second roller rolling surface 8c is a plane; as shown in fig. 10, the first locking end portion 5a further has a first transition slope 5d between the first locking end guide arc surface 5b and the first roller rolling surface 5 c; as shown in fig. 11, the second locking end portion 8a further has a second transition inclined surface 8d located between the second locking end guiding arc surface 8b and the second roller rolling surface 8c, and when the child game enclosure is in the unfolded state, the first roller rolling surface 5c and the second roller rolling surface 8c are respectively planes extending along the horizontal direction. The first transition slope 5d and the second transition slope 8d are provided to facilitate the first locking end 5a and the second locking end 8a to slide into or out of the first locking groove 6 and the second locking groove 9 more smoothly.

Through the theory of operation that the frame was enclosed in children's recreation of above-mentioned setting:

as shown in fig. 1, the child game enclosure is in the unfolded state, and the locking mechanism is in the locking operation state, as shown in fig. 7, the first locking end 5a of the first lock pin 5 extends out of the inner end of the first side rod 1a and is inserted into the first lock groove 6, and the second locking end 8a of the second lock pin 8 extends out of the inner end of the second side rod 1c and is inserted into the second lock groove 9.

When the children game enclosure frame needs to be switched from the unfolding state to the folding state, the unlocking piece is operated, the first traction rope 21 pulls the first lock pin 5 and overcomes the elastic force of the first elastic piece 7, so that the first locking end part 5a slides towards the direction of retracting the inner end part of the first side rod 1a until the first locking end part 5a is separated from the first lock groove 6; at the same time, the second pulling rope 22 pulls the second locking pin 8 and overcomes the elastic force of the second elastic member 10 to make the second locking end 8a slide in the direction of retracting the inner end of the second side rod 1c until the second locking end 8a is separated from the second locking groove 9, as shown in fig. 8. Then, the first side rod 1a and the second side rod 1c rotate relative to the middle connecting piece 1b, and in the rotating process, the first locking end guide arc surface 5b of the first locking pin 5 is in rolling contact with the first roller 13 before sliding contact with the first guide arc surface 11; the second locking end guide arc 8b of the second locking pin 8 is in rolling contact with the second roller 14 before being in sliding contact with the second guide arc 12 until the folding of the child game enclosure is completed, as shown in fig. 3. After the folding is completed, the first locking end guide arc surface 5b of the first locking pin 5 still presses against the first guide arc surface 11, and the second locking end guide arc surface 8b of the second locking pin 8 still presses against the second guide arc surface 12, as shown in fig. 9.

When the child game enclosure frame needs to be switched from the folded state to the unfolded state, the unlocking piece does not need to be operated, the first traction rope 21 pulls the first lock pin 5 and the second traction rope 22 pulls the second lock pin 8, and only the first side rod 1a and the second side rod 1c need to be rotated to slide relative to the middle connecting piece 1b, so that the operation is simple and convenient, and the labor is saved.

Example 2

The crib provided by the embodiment, as shown in fig. 12, includes an enclosure frame structure, a cloth cover sleeved on the enclosure frame structure, and a bed board 23 disposed on the cloth cover and located in the enclosure frame structure.

The enclosure frame structure is provided with a plurality of side rods 1, each side rod 1 comprises a first rod and a second rod which are arranged in a mutually rotating mode, and the enclosure frame structure further comprises an edge rod locking mechanism used for locking the first rod and the second rod mutually.

The side lever locking mechanism includes a first side lever 1a, an intermediate connecting member 1b, and a second side lever 1c, wherein the first side lever 1a constitutes a first lever, and the second side lever 1c constitutes a second lever, and the arrangement manner among the first side lever 1a, the intermediate connecting member 1b, and the second side lever 1c in the side lever locking mechanism is the same as that of embodiment 1.

The enclosure frame structure in this example is the same as the game enclosure frame of example 1, and the partial structure of the side bar locking mechanism except for the first side bar 1a, the intermediate link 1b, and the second side bar 1c is the same as the locking mechanism of example 1.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "left-right direction", "height direction", "front-rear direction", and the like indicate orientations or positional relationships based on fig. 1. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. A child play enclosure having an extended position and a collapsed position, the extended position comprising:

a plurality of vertical rods, wherein the other end of the first side rod and the other end of the second side rod in each side rod are respectively connected to the upper parts of two adjacent vertical rods in a pivot mode;

a bottom frame assembly comprising a central chassis and a plurality of bottom struts, each bottom strut having one end pivotally connected to said central chassis and another end pivotally connected to a lower portion of a respective said upright;

the locking device comprises a first lock pin, a first locking groove, a first elastic piece, a second lock pin, a second locking groove, a second elastic piece and an unlocking piece, wherein the first lock pin is connected to the first side rod in a sliding mode, the first locking groove is formed in the middle connecting piece, the first elastic piece is pressed on the first lock pin in a butting mode, the second lock pin is connected to the second side rod in a sliding mode, the second locking groove is formed in the middle connecting piece in a butting mode, the second elastic piece is pressed on the second lock pin in a butting mode, and the second lock pin is provided with a first locking end portion and a second locking end portion;

the method is characterized in that:

2. The children's play enclosure of claim 1, wherein the first locking end portion also has a first locking end guide contour that cooperates with the first guide contour, and the second locking end portion also has a second locking end guide contour that cooperates with the second guide contour; in the process that the first side rod and the second side rod rotate relative to the middle connecting piece, the first locking end guide arc surface is pressed against the first guide arc surface, and the second locking end guide arc surface is pressed against the second guide arc surface.

3. The children's play enclosure of claim 2, wherein a first roller is disposed at an edge of the first guide arc, the first roller being pivotally connected to the intermediate link by a first roller shaft, and a second roller is disposed at an edge of the second guide arc, the second roller being pivotally connected to the intermediate link by a second roller shaft; in the process that the first side rod rotates relative to the middle connecting piece, the first locking end guide arc surface is firstly in rolling contact with the first roller and then in sliding contact with the first guide arc surface; in the process that the second side rod rotates relative to the middle connecting piece, the second locking end guiding arc surface is firstly in rolling contact with the second roller and then in sliding contact with the second guiding arc surface.

4. The children's play enclosure of claim 3, wherein when the locking mechanism is in the locked operational state, the first roller is positioned below and in contact with a portion of the first detent extending from the first side bar, and the second roller is positioned below and in contact with a portion of the second detent extending from the second side bar; when the locking mechanism is converted from the locking working state to the unlocking working state, the first roller is connected with the first lock pin in a rolling way, and the second roller is connected with the second lock pin in a rolling way.

5. The children's play enclosure of claim 4, wherein during the transition of the locking mechanism from the locked to the unlocked operating state, the portion of the first roller that is in rolling contact with the lower bottom surface of the first locking pin is referred to as a first roller rolling surface, and the first roller rolling surface is a flat surface; the part of the second roller, which is connected with the lower bottom surface of the second lock pin in a rolling way, is called a second roller rolling surface, and the second roller rolling surface is a plane; the first locking end portion is further provided with a first transition inclined surface located between the first locking end guiding arc surface and the first roller rolling surface, and the second locking end portion is further provided with a second transition inclined surface located between the second locking end guiding arc surface and the second roller rolling surface.

6. The children's play enclosure of claim 3, wherein the rotational axes of the first side bar and the middle connector, the rotational axes of the second side bar and the middle connector, the axial axes of the first roller shaft, and the axial axes of the second roller shaft are arranged in parallel.

7. The children's play enclosure of claim 1, wherein: the end part of the first side rod is pivotally connected with the middle connecting piece through a first side rod rotating shaft, and the first guide arc surface is an arc surface formed by taking the axis of the first side rod rotating shaft as the center of a circle; the end part of the second side rod is connected with the pivot of the middle connecting piece through a second side rod rotating shaft, and the second guide arc surface is an arc surface formed by taking the axis of the second side rod rotating shaft as the center of a circle.

8. The children's game enclosure of claim 1, wherein two ends of the first elastic member are respectively pressed between the first lock pin and the first side bar, and the first elastic member is a compression spring; two end parts of the second elastic part are respectively pressed between the second lock pin and the second side rod, and the second elastic part is a pressure spring.

9. The children's play enclosure of any one of claims 1-8, wherein: the end part of the first side rod is pivotally connected with the middle connecting piece through a first side rod rotating shaft, a first strip-shaped guide hole extending along the sliding direction of the first lock pin is formed in the first lock pin, and the first side rod rotating shaft penetrates through the first strip-shaped guide hole; the end part of the second side rod is connected with the middle connecting piece through a second side rod rotating shaft in a pivot mode, a second strip-shaped guide hole extending along the sliding direction of the second lock pin is formed in the second lock pin, and the second side rod rotating shaft penetrates through the second strip-shaped guide hole;

and/or, locking mechanical system still including connect first pull cable on the first lockpin and connect the second pull cable on the second lockpin, first pull cable set up in first limit pole in and with the unlocking piece is connected, the second pull cable set up in the second limit pole in and with the unlocking piece is connected.

10. A side bar locking mechanism of a children's bed, the locking mechanism has a locking working state and an unlocking working state, the locking mechanism comprises a first side bar, a middle connecting piece and a second side bar, one end part of the first side bar and one end part of the second side bar are respectively and pivotally connected with the middle connecting piece;

the method is characterized in that:

the middle connecting piece is also provided with a first guide arc surface and a second guide arc surface, the first side rod and the second side rod rotate relative to the middle connecting piece in the process of changing from unfolding to folding relative to the middle connecting piece, the first locking end part is pressed on the first guide arc surface in a sliding mode, and the first locking end part tends to slide towards the extending direction of the first side rod due to the elastic force applied to the first locking pin by the first elastic piece; the second locking end part is slidably pressed on the second guide arc surface, and the elastic force applied to the second lock pin by the second elastic piece enables the second locking end part to tend to slide towards the extending direction of the second side rod.

11. The cot temple bar locking mechanism as defined in claim 10 wherein said first locking end portion also has a first locking end guide contour cooperating with said first guide contour, and said second locking end portion also has a second locking end guide contour cooperating with said second guide contour; in the process that the first side rod and the second side rod rotate relative to the middle connecting piece, the first locking end guide arc surface is pressed against the first guide arc surface, and the second locking end guide arc surface is pressed against the second guide arc surface.

12. The cot locking mechanism as claimed in claim 11 wherein the first guide arc has a first roller at an edge thereof, the first roller being pivotally connected to the intermediate link by a first roller shaft, and the second guide arc has a second roller at an edge thereof, the second roller being pivotally connected to the intermediate link by a second roller shaft; in the process that the first side rod rotates relative to the middle connecting piece, the first locking end guide arc surface is firstly in rolling contact with the first roller and then in sliding contact with the first guide arc surface; in the process that the second side rod rotates relative to the middle connecting piece, the second locking end guiding arc surface is firstly in rolling contact with the second roller and then in sliding contact with the second guiding arc surface.

13. The cot locking mechanism as claimed in claim 12 wherein the first roller is located under and in contact with a portion of the first locking pin extending from the first side bar and the second roller is located under and in contact with a portion of the second locking pin extending from the second side bar when the locking mechanism is in the locked operative position; in the process of switching the locking mechanism from the locking working state to the unlocking working state, the first roller is connected with the first lock pin in a rolling way, and the second roller is connected with the second lock pin in a rolling way.

14. The lock mechanism as claimed in claim 13, wherein the portion of the first roller that is rollingly connected to the lower bottom surface of the first lock pin during the transition of the lock mechanism from the locking operation state to the unlocking operation state is referred to as a first roller rolling surface, and the first roller rolling surface is a flat surface; the part of the second roller, which is connected with the lower bottom surface of the second lock pin in a rolling way, is called a second roller rolling surface, and the second roller rolling surface is a plane; the first locking end portion is further provided with a first transition inclined surface located between the first locking end guiding arc surface and the first roller rolling surface, and the second locking end portion is further provided with a second transition inclined surface located between the second locking end guiding arc surface and the second roller rolling surface.

15. The cot side bar locking mechanism according to claim 12 wherein the rotational axes of the first side bar and the intermediate link, the rotational axes of the second side bar and the intermediate link, the rotational axes of the first roller shaft, and the rotational axes of the second roller shaft are arranged in parallel.

16. The cot side bar locking mechanism of claim 10 wherein: the end part of the first side rod is connected with the middle connecting piece through a first side rod rotating shaft in a pivot mode, and the first guide arc surface is an arc surface formed by taking the axis of the first side rod rotating shaft as the center of a circle; the end part of the second side rod is connected with the pivot of the middle connecting piece through a second side rod rotating shaft, and the second guide arc surface is an arc surface formed by taking the axis of the second side rod rotating shaft as the center of a circle.

17. The lock mechanism as claimed in claim 10, wherein the two ends of the first elastic member are respectively pressed between the first lock pin and the first side bar, and the first elastic member is a compression spring; two end parts of the second elastic piece are respectively pressed between the second lock pin and the second side rod, and the second elastic piece is a pressure spring.

18. A side bar locking mechanism for a child's bed according to any one of claims 10 to 17, wherein: the end part of the first side rod is pivotally connected with the middle connecting piece through a first side rod rotating shaft, a first strip-shaped guide hole extending along the sliding direction of the first lock pin is formed in the first lock pin, and the first side rod rotating shaft penetrates through the first strip-shaped guide hole; the end part of the second side rod is pivotally connected with the middle connecting piece through a second side rod rotating shaft, a second strip-shaped guide hole extending along the sliding direction of the second lock pin is formed in the second lock pin, and the second side rod rotating shaft penetrates through the second strip-shaped guide hole;