Folding frame and folding baby carriage

Abstract

The utility model discloses a folding frame and a folding baby carriage, the folding frame comprises two side frames, a locking piece, a crosspiece and an unlocking mechanism, and the two side frames are oppositely arranged and have an opposite folding state and an opposite unfolding state; the locking piece is arranged on at least one side frame, and the locking piece is provided with a locking position for keeping the current state of the side frame and an unlocking position for allowing the state of the side frame to be changed; the crosspiece is connected between the two side frames, and a mounting channel is formed in the crosspiece; the unlocking mechanism comprises an operating part and a first transmission part, and the operating part is movably mounted on the crosspiece; the first transmission part is rotationally arranged in the mounting channel, one end of the first transmission part is in linkage with the operating part, and the other end of the first transmission part extends out of the crosspiece to be in linkage with the locking part. The operating part is arranged on the crosspiece instead of an existing handle, so that the operating part is difficult to touch when a user pushes a vehicle, the possibility of misoperation is avoided, and the safety in use is improved to a certain extent.

Description

Technical Field

[0001] The present application relates to the technical field of children's products, and in particular to a folding frame and a folding baby carriage. Background Art

[0002] Current children's strollers consist of a frame and a seat mounted on the frame. The frame is foldable, and folding can be initiated in conjunction with the seat or independently by a release mechanism mounted on the frame. While the release mechanism is often located on the handlebars, this facilitates operation but poses certain safety risks, such as misoperation. Utility Model Content

[0003] The present application provides a folding frame, which improves the safety of use to a certain extent.

[0004] The present application provides a folding frame, comprising:

[0005] Two side frames, the two side frames are arranged opposite to each other and have relative folded and unfolded states;

[0006] a locking member disposed on at least one of the side frames, the locking member having a locked position for maintaining a current state of the side frame and an unlocked position for allowing the side frame to change state;

[0007] A crossbar connected between the two side frames, wherein the crossbar has a mounting channel;

[0008] Unlocking mechanism, including:

[0009] an operating member movably mounted on the crossbar;

[0010] A first transmission member is rotatably disposed in the mounting channel, one end of the first transmission member being linked to the operating member, and the other end extending from the horizontal bar being linked to the locking member. Several optional approaches are provided below, but these are not intended to be additional limitations to the overall scheme described above, but rather to provide further supplements or optimizations. Each optional approach may be combined with the overall scheme described above, or multiple optional approaches may be combined, provided there are no technical or logical contradictions.

[0011] Optionally, the side frame includes at least two rotatably matched support members, and the rotatable support members further define a movement plane, and the locking member slides or rotates within the movement plane to switch positions.

[0012] Optionally, the folding frame further includes:

[0013] The elastic member acts between the side frame and the locking member to drive the locking member toward a locking position.

[0014] Optionally, the first transmission member is an integrated or split structure and includes:

[0015] The rod portion is rotatably arranged around its own axis and penetrates the installation channel;

[0016] A pulling portion protrudes from the outer periphery of the installation channel;

[0017] The unlocking mechanism further comprises:

[0018] The second transmission member is transmission-connected between the pulling portion and the locking member.

[0019] Optionally, the rod portion includes:

[0020] A main body portion, one end of which is provided with an axially extending transmission hole;

[0021] The plug-in part is fixedly inserted in the transmission hole and moves synchronously with the main body part. One end of the plug-in part extends out of the transmission hole and is fixed to the pulling part.

[0022] Optionally, the second transmission member is a flexible transmission member, which pulls the locking member toward the unlocking position as the first transmission member rotates.

[0023] Optionally, a slide groove is provided in one of the support members, and the locking member is installed in the slide groove. The inner wall of the support member is also provided with a guide groove and / or a reversing wheel, and the second transmission member extends through the guide groove and / or the reversing wheel and is connected to the first transmission member.

[0024] Optionally, the operating member is cylindrical and rotatably sleeved on the cross bar, and the cross bar is provided with an avoidance hole located on the side wall of the installation channel, and the operating member is connected to the first transmission member via a linkage pin passing through the avoidance hole.

[0025] Optionally, one of the supports has a connecting sleeve, and the end of the cross piece is fixedly inserted into the connecting sleeve.

[0026] Optionally, the end of the cross piece and the connecting sleeve are fixed to each other by a limit pin, a portion of the limit pin is located in the installation channel, and the first transmission member is provided with an axial limit hole for the limit pin to pass through.

[0027] Optionally, an avoidance groove is provided on the outer periphery of the first transmission member, which is connected to the axial limiting hole and allows the limiting pin to enter.

[0028] Optionally, the unlocking mechanism further includes:

[0029] The coil spring acts between the operating member and the cross piece to drive the operating member to return to the initial position. The coil spring is installed in a radial gap between the operating member and the cross piece.

[0030] The present application also provides a folding baby carriage, comprising the folding frame described in the present application, wherein each side frame comprises a front leg, a rear leg and a handle as a support member;

[0031] The locking member is simultaneously engaged with the front leg, the rear leg and the handle in a locked position.

[0032] The folding frame of the present application sets the unlocking operating member on the cross bar instead of the existing handlebar. When the user pushes the vehicle, it is difficult to touch the operating member, which avoids the possibility of misoperation and improves safety during use to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A folding stroller according to an embodiment of the present application;

[0034] Figure 2 for Figure 1 Structural view of the mid-folding frame;

[0035] Figure 3 An exploded view of a cross member and a side frame according to an embodiment of the present application;

[0036] Figure 4 This is a structural view of a side frame at a locking member according to an embodiment of the present application;

[0037] Figure 5 A further exploded view of a cross member and a side frame according to an embodiment of the present application;

[0038] Figure 6 for Figure 5 An exploded view of the middle cross member, the connecting seat and the first transmission member;

[0039] Figure 7 for Figure 6 Exploded view from another angle;

[0040] Figure 8 This is a structural view of the first transmission member according to an embodiment of the present application (the crossbar is in a half-section state);

[0041] Figure 9 for Figure 8 Exploded view of the main body and plug-in part;

[0042] Figure 10 This is a structural view of the folding frame at the crossbar of an embodiment of the present application;

[0043] Figure 11 for Figure 10 A structural view of the middle operating member rotating to unlock the locking member;

[0044] Figure 12 This is a front view of the folding frame on the connecting seat according to an embodiment of the present application;

[0045] Figure 13 for Figure 12 Enlarged view of part A in the middle;

[0046] Figure 14 A partial cross-sectional view of a folding frame at a cross member according to an embodiment of the present application;

[0047] Figure 15 This is a partial view of the folding frame at the coil spring of an embodiment of the present application (the crossbar is in a half-section state).

[0048] The reference numerals in the figures are described as follows:

[0049] 1000, folding frame;

[0050] 100, side frame; 110, front leg; 111, second rotation joint; 120, rear leg; 121, third rotation joint; 130, handle; 131, first rotation joint; 132, connecting seat; 133, slide groove; 134, guide groove; 135, reversing wheel; 1321, connecting portion; 1322, adapter seat; 1323, connecting sleeve;

[0051] 140, locking member;

[0052] 150, crossbar; 151, avoidance hole; 152, linkage pin; 153, limit pin;

[0053] 160, operating parts;

[0054] 170, first transmission member; 171, rod; 1711, main body; 1712, plug-in portion; 1713, transmission hole; 172, pulling portion; 173, axial limiting hole;

[0055] 180, second transmission member; 191, locking member; 192, unlocking member; 193, coil spring;

[0056] 200. Seat; 210. Cushion; 220. Backrest. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0058] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be an intermediate component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be an intermediate component.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0060] In this application, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly indicate the number or order of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0061] See Figures 1 to 13 The present application provides a folding bicycle frame 1000, comprising two oppositely arranged side frames 100, a locking member 140, a cross member 150, and an unlocking mechanism. The side frames 100 have relative folded and unfolded states. The locking member 140 is disposed on at least one side frame 100 and has a locked position for maintaining the side frame 100 in its current state and an unlocked position for allowing the side frame 100 to change its current state. For example, in the locked position, the locking member 140 maintains the side frame 100 in the unfolded state. When the locking member 140 is switched to the unlocked position, the side frame 100 is allowed to switch to the folded state.

[0062] Figure 1 In the embodiment, the folding frame 1000 is installed with the seat 200 to form a folding baby carriage, and the crossbar 150 is connected between the two side frames 100. When the operator uses the folding baby carriage with the folding frame 1000 of the present application, the crossbar 150 is spatially located away from the operator, for example, in a position that is not easily accessible to the operator, such as Figure 2In the embodiment, crossbar 150 is located below seat 200. The unlocking mechanism includes an operating member 160 and a first transmission member 170. Operating member 160 is movably mounted on crossbar 150. First transmission member 170 is rotatably disposed in the mounting channel about its own axis. One end of first transmission member 170 is linked to operating member 160, while the other end extends from crossbar 150 and is linked to locking member 140. The linkage between the two ends of first transmission member 170 and the corresponding components is either direct or indirect. Direct linkage includes direct contact between the two components or an integrated structure. Indirect linkage includes the presence of other transmission components between the two components.

[0063] In the folding frame of the present application, the operating parts are arranged on the crossbars instead of on the existing handlebars. When the user pushes the bicycle, it is difficult to touch the operating parts, which avoids the possibility of misoperation and improves safety during use to a certain extent.

[0064] The crossbar 150 is a hollow tube with an internal space serving as an installation passage. The side frame 100 includes at least two rotatably coupled support members. The rotatable support members further define a motion plane. The locking member 140 slides or rotates within the motion plane to switch positions. The axis of the first transmission member 170 is perpendicular to the motion plane. The support members are used for supporting the ground and / or for the operator to grasp. In the figure, the support members include coaxially hinged front legs 110, rear legs 120, and a handle 130. In the locked position, the locking member 140 simultaneously engages the front legs 110, rear legs 120, and handle 130. In the figure, the locking member 140 is slidably mounted within the handle 130 and acts on the front legs 110, rear legs 120 in the locked position. Preferably, the folding frame 1000 also includes an elastic member acting between the side frame 100 and the locking member 140 to drive the locking member 140 toward the locked position. In this embodiment, the elastic member is a spring disposed within the handle 130.

[0065] The range framed by the two side frames 100 is the inner side, and the corresponding range is the outer side. Figures 3 to 14As shown, in one embodiment, the handlebar 130 includes a first rotational joint 131 and a connecting base 132 mounted on the inside of the handlebar. The connecting base 132 has a connecting portion 1321 corresponding to the first rotational joint 131. The connecting portion 1321 and the first rotational joint 131 are spaced apart and have a gap therebetween. The front leg 110 has a second rotational joint 111, which is rotatably mounted within the gap. The rear leg 120 has a third rotational joint 121 that rotatably cooperates with the first rotational joint 131. The third rotational joint 121 is located outside the first rotational joint 131. The connecting base 132 has a connecting sleeve 1323, and the end of the crosspiece 150 is fixedly inserted into the connecting sleeve 1323. The end of the cross piece 150 and the connecting sleeve 1323 are fixed to each other by a limit pin 153. A portion of the limit pin 153 is located in the installation channel. The first transmission member 170 is provided with an axial limit hole 173 for the limit pin 153 to pass through. The axial limit hole 173 extends circumferentially to facilitate the rotation of the first transmission member 170.

[0066] The connecting seat 132 is provided with an adapter seat 1322, and the seat 200 has an adapter that is detachably matched with the adapter seat 1322. The seat 200 includes a seat cushion 210 and a backrest 220 that are rotatably matched. Figure 1 and Figure 2 In one embodiment, when the seat 200 is installed on the folding frame 1000, the crossbar 150 is located below the seat cushion 210. Before folding the frame, the seat 200 can be removed first, or extended under the seat cushion 210 for folding.

[0067] Key references Figure 8 and Figure 9 In one embodiment, the first transmission member 170 is an integral structure or a split structure, and includes a rod portion 171 and a pulling portion 172. The rod portion 171 is rotatable about its own axis and is inserted into the installation channel. The pulling portion 172 is protruded from the outer periphery of the installation channel, that is, the pulling portion 172 extends out of the cross piece 150. In the figure, the pulling portion 172 is located in the connecting portion 1321. Among them, the rod 171 includes a main body part 1711 and a plug-in part 1712. The main body part 1711 is a cylindrical structure and an axially extending transmission hole 1713 is provided at one end. The plug-in part 1712 is fixedly inserted in the transmission hole 1713 and moves synchronously with the main body part 1711. One end of the plug-in part 1712 extends out of the transmission hole 1713 and is fixed to the pulling part 172. The plug-in part 1712 and the transmission hole 1713 can be fixed by bonding or tight fit. Furthermore, the other end of the first transmission member 170 relative to the plug-in part 1712 is restricted by the second rotating joint 111 of the forefoot 110 and cannot escape from the main body part 1711.

[0068] Combine Figure 4 and Figure 13The unlocking mechanism further includes a second transmission member 180, which is connected between the pulling portion 172 and the locking member 140. The pulling portion 172 is a block-shaped structure extending radially outward (based on the axis of the first transmission member 170). The second transmission member 180 is a flexible transmission member. Flexible means that it can be bent, but has poor tensile properties, that is, it is difficult to stretch and shrink, and can better achieve force transmission. The second transmission member 180 is, for example, a rope (such as Figure 13 The material is metal, such as stainless steel, and the diameter is suitable for bending. Figure 4 and Figure 13 The handle 130 is provided with a slide groove 133, and the locking member 140 is slidably mounted in the slide groove 133. The inner wall of the handle 130 is also provided with a guide groove 134 and / or a reversing wheel 135. The second transmission member 180 extends through the guide groove 134 and / or the reversing wheel 135 and is connected to the first transmission member 170. The guide groove 134 and the reversing wheel 135 are both used to guide the second transmission member 180 to achieve force transmission and force direction change. In the figure, the guide groove 134 is provided on the connecting seat 132, and because the position of the cross piece 150 is lower in height than the locking member 140, and the locking member 140 slides upward when switching from the locked position to the unlocked position, the handle 130 is provided with a reversing wheel 135, and the second transmission member 180 is wound around the reversing wheel 135 and is finally connected to the locking member 140.

[0069] See also Figures 10 to 14 The operating member 160 is cylindrical and is rotatably mounted on the outer periphery of the crossbar 150. Accordingly, the operating member 160 has a working position (such as Figure 11 ), and releasing the driving force applied to the locking member 140 to allow the locking member 140 to move toward the initial position of the locked position (eg Figure 10 The crossbar 150 is provided with an escape hole 151 on the side wall of the installation channel. The operating member 160 is connected to the first transmission member 170 via a linkage pin 152 passing through the escape hole 151, so that the first transmission member 170 follows the operating member 160. The unlocking mechanism also includes an elastic member that acts on the operating member 160 to reset it to its initial position, for example Figure 15 The coil spring 193 acts between the operating member 160 and the cross piece 150 . In the figure, the coil spring 193 is installed in the radial gap between the operating member 160 and the cross piece 150 .

[0070] In one embodiment, the folding frame 1000 further includes a two-way locking mechanism, which includes:

[0071] The locking member 191 is radially slidably mounted on the crosspiece 150 and has a locking position where it extends into the operating member 160 to restrict the operating member 160 from rotating to the working position, and a releasing position where it exits the operating member 160 and allows the operating member 160 to rotate to the working position;

[0072] The unlocking member 192 is slidably mounted on the operating member 160 and is used to drive the locking member 191 out of the operating member 160. During folding, the operating member 160 is grasped, the unlocking member 192 is pressed, and the operating member 160 is rotated, thereby lifting the folding frame 1000. Gravity drives the handlebars 130 and the front legs 110 to rotate closer to the rear legs 120.

[0073] In the folding frame of the present application, the operating parts are arranged on the crossbars instead of on the existing handlebars. When the user pushes the vehicle, it is difficult to touch the operating parts, which avoids the possibility of misoperation and improves safety during use to a certain extent.

[0074] The technical features of the above embodiments may be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there are no conflicts in the combination of these technical features, they should be considered to be within the scope of this specification. When technical features in different embodiments are reflected in the same figure, it can be regarded as that figure also discloses the combination examples of the various embodiments involved.

[0075] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art could make numerous variations and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application.

Claims

1. Folding frame, characterized in that: include: Two side frames, the two side frames are arranged opposite to each other and have relative folded and unfolded states; a locking member disposed on at least one of the side frames, the locking member having a locked position for maintaining a current state of the side frame and an unlocked position for allowing the side frame to change state; A crossbar connected between the two side frames, wherein the crossbar has a mounting channel; Unlocking mechanism, including: an operating member movably mounted on the crossbar; The first transmission member is rotatably arranged in the installation channel, one end of the first transmission member is linked to the operating member, and the other end extends out of the cross bar and is linked to the locking member.

2. The folding frame according to claim 1, characterized in that: The side frame includes at least two rotationally matched support members, and the rotating support members further define a movement plane. The locking member slides or rotates within the movement plane to switch positions.

3. The folding frame according to claim 1, characterized in that: Also includes: The elastic member acts between the side frame and the locking member to drive the locking member toward a locking position.

4. The folding frame according to claim 1, characterized in that The first transmission member is an integrated or split structure and includes: The rod portion is rotatably arranged around its own axis and penetrates the installation channel; A pulling portion protrudes from the outer periphery of the installation channel; The unlocking mechanism further comprises: The second transmission member is transmission-connected between the pulling portion and the locking member.

5. The folding frame according to claim 4, characterized in that: The rod portion comprises: A main body portion, one end of which is provided with an axially extending transmission hole; The plug-in part is fixedly inserted in the transmission hole and moves synchronously with the main body part. One end of the plug-in part extends out of the transmission hole and is fixed to the pulling part.

6. The folding frame according to claim 4, characterized in that: The second transmission member is a flexible transmission member, which pulls the locking member toward the unlocking position as the first transmission member rotates.

7. The folding frame according to claim 6, characterized in that: A slide groove is provided in one of the support members, and the locking member is installed in the slide groove. The inner wall of the support member is also provided with a guide groove and / or a reversing wheel, and the second transmission member extends through the guide groove and / or the reversing wheel and is connected to the first transmission member.

8. The folding frame according to claim 1, characterized in that: The operating member is cylindrical and rotatably sleeved on the crossbar. The crossbar is provided with an avoidance hole located on the side wall of the installation channel. The operating member is connected to the first transmission member via a linkage pin passing through the avoidance hole.

9. The folding frame according to claim 8, characterized in that: One of the supports is provided with a connecting sleeve, and the end of the crosspiece is fixedly plugged into the connecting sleeve.

10. The folding frame according to claim 8, characterized in that: The unlocking mechanism further comprises: The coil spring acts between the operating member and the cross piece to drive the operating member to return to an initial position. The coil spring is installed in a radial gap between the operating member and the cross piece.

11. A folding baby carriage, characterized in that: A folding bicycle frame comprising any one of claims 1 to 10, wherein each side frame comprises a front leg, a rear leg and a handlebar as a support member; The locking member is simultaneously engaged with the front leg, the rear leg and the handle in a locked position.

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