TWI854524B - Joining structure and child safety seat including the same - Google Patents

Abstract

A joining structure for detachably joining a first component to a second component includes: a fixed seat connected to the first component, the fixed seat having a seat sidewall that extends between an opened end and a receiving end opposite to each other; a socket connected to the second component and having a socket sidewall, the socket being insertable through the opened end into the fixed seat for joining the second component to the first component; and a release button disposed on the socket, the release button being movable relative to the socket between a locking position away from the socket and a release position near the socket for selectively locking the socket to the fixed seat.

Description

Joint structure and child safety seat including the joint structure

The present invention relates to a coupling mechanism and a child safety seat including the coupling structure.

Child safety seats are a common device that can accommodate infants and young children of different ages. Child safety seats are designed for the safety of children in cars. They can restrain children from dangerous behaviors in the car during driving and protect children from injuries in the event of accidents such as sudden car collisions.

Child safety seats in the prior art are usually not equipped with a canopy, which is disadvantageous for convertible vehicles or outdoor use of child safety seats. Even for child safety seats equipped with a canopy, the canopy is usually designed to be fixedly mounted on the seat, making it inconvenient to remove the canopy. Child transport devices, such as strollers and child safety seats, are increasingly inclined to be equipped with a canopy mechanism to achieve the purpose of sunshade, wind shelter, privacy protection, etc.

An embodiment of the present invention provides a coupling structure for detachably coupling a first object to a second object, the coupling structure comprising: a fixing seat connected to the first object, the fixing seat having a fixing seat side wall, the fixing seat side wall extending between an open end and a receiving end disposed oppositely; a socket connected to the second object, the socket having a socket side wall, the socket being capable of being inserted into the fixing seat through the open end so as to couple the second object to the first object; and a release button disposed in the socket, the release button being movable relative to the socket between a locking position away from the socket and a release position close to the socket so as to selectively lock the socket to the fixing seat.

According to one embodiment, the release button can slide between a locking position away from the socket and a release position close to the socket in a direction perpendicular to the insertion direction of the socket.

According to one embodiment, the release button includes: a push portion, which protrudes outward perpendicularly to the insertion direction of the socket on a side of the release button away from the socket; and a locking portion, which protrudes outward perpendicularly to the insertion direction of the socket on a side of the release button away from the socket; wherein, when the socket is inserted into the fixing seat, the push portion remains outside the fixing seat, while the locking portion is inserted into the fixing seat and is engaged with the inner side of the fixing seat.

According to one embodiment, the joint structure further includes: a hole sealing member, which is arranged inside the side wall of the fixing seat, between the accommodating end and the socket, and can move between the open end and the accommodating end, and the hole sealing member has a hole sealing surface, and the shape of the hole sealing surface corresponds to the cross-sectional shape of the side wall of the fixing seat at the open end; and a hole sealing member elastic member, which is arranged between the hole sealing member and the accommodating end, and is arranged to apply a force biasing the hole sealing member toward the open end so that the hole sealing member and the socket are elastically abutted; wherein, when the socket is not inserted into the fixing seat, the hole sealing member is biased to the open end by the hole sealing member elastic member; when the socket is inserted into the fixing seat, the hole sealing member is pushed toward the accommodating end by the socket.

According to one embodiment, a stopper is provided on the inner side of the side wall of the fixing seat, and the stopper is located at a position between the open end and the accommodating end, and protrudes inward from the inner side of the side wall of the fixing seat; a reverse hook is provided on the hole sealing member, and the reverse hook extends from the hole sealing surface toward the accommodating end and has a hook portion protruding toward the side wall of the fixing seat at the end; the reverse hook is configured such that when the hole sealing member is biased to the open end by the hole sealing member elastic member, the reverse hook abuts against the stopper from the accommodating end side to prevent the hole sealing member from being separated from the fixing seat.

According to one embodiment, a plurality of the stoppers are provided on the inner side of the side wall of the fixing seat, forming a circle along the inner circumference of the side wall of the fixing seat, or are symmetrically arranged on the inner circumference of the side wall of the fixing seat in a discrete manner.

According to one embodiment, the fixing seat further has a fixing seat edge, and the fixing seat edge extends outward from the edge of the open end of the fixing seat side wall; when the socket is not inserted into the fixing seat, the sealing surface of the sealing member is roughly flush with the fixing seat edge.

According to one embodiment, in the insertion direction of the socket, the sum of the lengths of the socket and the hole sealing member is approximately equal to the length of the fixing seat, so that when the socket is inserted into the fixing seat, the hole sealing member abuts against the receiving end of the fixing seat.

Another embodiment of the present invention provides a coupling structure for detachably coupling a first object to a second object, the coupling structure comprising: a fixing seat provided on the first object; a socket provided on the second object, the socket being insertable and connected to the fixing seat and being removable from the fixing seat, wherein the socket comprises: a locking portion, which is movable relative to the socket and is used to lock the socket in the fixing seat; and an unlocking portion, which is exposed outside the fixing seat when the socket is inserted into the fixing seat, and the unlocking portion can be operated to cause the locking portion to move and unlock the locking of the socket in the fixing seat.

According to one embodiment, the locking portion is in the form of a hook, and the hook extends in a direction substantially perpendicular to the insertion direction of the socket, so as to be locked in a correspondingly arranged snap-fit structure in the fixing seat when the socket is inserted in the fixing seat; the unlocking portion and the locking portion are formed as an integral structure, in a direction substantially perpendicular to the insertion direction of the socket.

According to one embodiment, the unlocking portion is in the form of a button with a corrugated surface.

According to one embodiment, the socket includes a butt end, a connection end, and a middle section disposed between the butt end and the connection end, the connection end is configured to connect the second object, and the locking portion and the unlocking portion are disposed in the middle section.

According to one embodiment, a reset portion is also provided in the middle section, and the reset portion is configured to reset the locking portion.

According to one embodiment, the reset portion is in the form of a reset spring that abuts against the unlocking portion.

According to one embodiment, the joint structure further includes a hole sealing member, which is movably disposed in the fixing seat and abuts against the socket when the socket is inserted into the fixing seat, and can be moved to seal the opening of the fixing seat when the socket is removed from the fixing seat.

According to one embodiment, the outer contour of the hole sealing member is formed to match the contour of the fixing seat.

According to one embodiment, the joint structure further includes an elastic member, which is disposed between the hole sealing member and the bottom of the fixing seat opposite to the opening, or is disposed at the bottom of the hole sealing member.

According to one embodiment, the hole sealing member is in the form of a cover, including a cover and side walls extending vertically from the periphery of the cover, and the elastic member is arranged in the space surrounded by the side walls of the hole sealing member and abuts between the cover and the bottom of the fixing seat.

The present invention also provides a child safety seat, comprising: a seat body; a canopy that can be connected to the upper part of the seat body; and a connection structure that is used to detachably connect the canopy to the upper part of the seat body; two connection structures are respectively arranged on both sides of the seat body, and the accommodating end of each fixing seat is embedded in the seat body from the corresponding side of the seat body, and the open end of each fixing seat is exposed on the side of the seat body.

According to one embodiment, the canopy includes a first canopy rod and a second canopy rod in a substantially U-shaped shape, and each of the joint structures further includes a first canopy rod fixing member and a second canopy rod fixing member, wherein the first canopy rod fixing member is fixed to the socket of a corresponding one of the two joint structures, and the second canopy rod fixing member is pivotally connected to the first canopy rod fixing member; the two ends of the first canopy rod are respectively fixedly connected to the first canopy rod fixing member of a corresponding one of the two joint structures, and the two ends of the second canopy rod are respectively fixedly connected to the two ends of the second canopy rod fixing member of a corresponding one of the two joint structures, so that the second canopy rod can rotate relative to the first canopy rod around an axis parallel to the insertion direction of the socket.

100:Joint structure

110: Fixed seat

111: Fixed seat edge

112: Fixed seat side wall

1121: Open end

1122: Accommodation end

114: Stopper

120: Sealing parts

121: Sealing surface

122:Hook

130: socket

131: Socket side wall

132: protrusion

133: Slotting

134: Limiting part

140: First roof pole fixing part

141: First disc-shaped portion

142: First canopy pole connection part

143: Storage space

144: Positioning slot

150:Second roof pole fixing

151: Second disc-shaped portion

152: Second canopy pole connection part

153: Rotating part

154: Positioning protrusion

155:Through hole

160: Cover

161: Sealing parts, elastic parts

162: Elastic parts of canopy rods

163: Release button elastic part

170: Release button

171: Pushing Department

172: Locking unit

173: Release button elastic part fixing part

200: Canopy

210: First canopy pole

220: Second canopy pole

300: Seat body

301: Shell

302: Headrest

303: Backrest

304: Seat

305: Opening and storage space

310: Side impact protection block

910:Joint structure

912: Socket

921: Reach the top

922:Connection port

923: Middle section

9231: Locking unit

9232: Unlocking section

9233:Restoration Department

914: Sealing parts

941: Cover

942: Side wall

943: snap-fit parts

916: Elastic components

20: Seat section

30: Backrest

32: Fixed seat

40: Occipital area

50: Canopy mechanism

The following will specifically describe an embodiment of the present invention in conjunction with the accompanying drawings, in which: FIG1 is a three-dimensional diagram of a child safety seat according to the present invention, showing the state where the canopy rod is connected to the seat body.

FIG. 2 is a three-dimensional diagram of the child safety seat according to the present invention, showing the canopy rod separated from the seat body.

FIG. 3 shows a three-dimensional view of the canopy of the child safety seat according to the present invention.

FIG. 4A shows a three-dimensional view of a child safety seat according to the present invention, wherein the joint structure is shown in an exploded view.

Figure 4B is an enlarged view of the boxed portion of Figure 4A.

FIG. 5A shows a three-dimensional view of the child safety seat according to the present invention from another angle, wherein the joint structure is shown in an exploded view.

Figure 5B is an enlarged view of the boxed portion of Figure 5A.

Figure 6A and Figure 6B are three-dimensional images of the sealing member at two different angles.

Figure 7A and Figure 7B are three-dimensional images of the socket and the first canopy rod fixing member at two different angles.

Figure 8A and Figure 8B are three-dimensional images of the second canopy rod fixing member at two different angles.

Figure 9A is a cross-sectional view taken along line A-A in Figure 1.

Figure 9B is a partial enlarged view of the box portion in Figure 9A.

Figure 10A is a partial cross-sectional view taken along line A-A in Figure 2.

Figure 10B is a partial enlarged view of the box portion in Figure 10A.

FIG. 11A is a three-dimensional diagram of another embodiment of the bonding structure according to the present invention.

Figure 11B is a partial enlarged view of the box in Figure 11A.

Figure 11C is a three-dimensional view of the sealing member and the socket on the opposite side of the square frame in Figure 11A.

FIG. 12A is a perspective view of the joint structure and the canopy pole in FIG. 11A , wherein the canopy pole is in an open state.

Figure 12B and Figure 12C are partial enlarged views of the upper and lower frames in Figure 12A, respectively.

FIG. 13A is a three-dimensional view of the joint structure and the canopy pole in FIG. 11A , wherein the canopy pole is in a folded state.

Figure 13B and Figure 13C are partial enlarged views of the upper and lower frames in Figure 13A, respectively.

FIG14A is a cross-sectional view taken along line C-C of FIG11A, in which the seat body is omitted.

Figure 14B and Figure 14C are partial enlarged views of the upper and lower frames in Figure 14A, respectively.

FIG. 15 is a schematic diagram of a child safety seat according to the second embodiment of the present invention, wherein the child safety seat shown in the figure is not connected to the canopy mechanism.

FIG. 16 is a schematic diagram of a child safety seat according to the present invention, in which the child safety seat shown is plug-connected with a coupling structure.

FIG. 17 is a schematic diagram of a joint structure according to the present invention, wherein the joint structure shown in the figure is connected to a canopy mechanism.

FIG. 18 is a schematic diagram of a socket according to the coupling structure of the present invention.

Figure 19 is a schematic diagram of the sealing member of the joint structure according to the present invention.

Figure 20 is a schematic diagram of the joint structure according to the present invention, which shows the matching relationship between the socket and the sealing member.

Although the invention is illustrated and described herein with reference to specific embodiments, the invention should not be limited to the details shown. Rather, various modifications may be made to these details within the scope of equivalents of the claims and without departing from the invention.

Directional terms such as "front", "back", "upper", and "lower" mentioned herein are only for the convenience of understanding. The present invention is not limited to these directional terms, but can be adjusted according to actual circumstances. Although the present invention has been described with reference to typical embodiments, the terms used are illustrative and exemplary, rather than restrictive terms.

First, the child safety seat according to the present invention is described in general with reference to Figures 1 to 3. As shown in the figure, the child safety seat includes a seat body 300, which has a shell 301, a headrest 302, a backrest 303 and a seat 304. In addition, in this embodiment, openings and accommodating spaces 305 are also provided on both sides of the seat body 300 (see Figure 4A). The positions of the openings and accommodating spaces are preferably located on the shell 301 relative to the upper edge of the headrest 302. In some other embodiments, the openings and accommodating spaces 305 can also be located on the shell 301 between the position corresponding to the upper edge of the headrest 302 and the upper edge of the shell 301.

In some other embodiments, side impact protection blocks 310 are also provided on both sides of the seat body 300. In these embodiments, the opening and the accommodation space are located between the side impact protection block 310 and the upper edge of the shell 301, but the present invention is not limited thereto.

The child safety seat disclosed in this embodiment also includes a canopy 200 and a connecting structure 100 connecting the seat body 300 and the canopy 200. The canopy rod of the canopy 200 is detachably connected to the left and right sides of the seat body 300 through the connecting structure 100 of the present invention. The connecting structure 100 can be set alone or symmetrically on the left and right sides of the seat body 300. Each connecting structure 100 is divided into two parts, one of which is mainly a fixing seat 110 embedded in the accommodating space 305, and the other part is mainly a socket 130 connected to the canopy rod.

For the sake of easy observation, only two canopy poles of the canopy 200 are shown in the figure, and the canopy cloth installed on the canopy poles is not shown. It should be noted that although the canopy of the embodiment shown in the figure includes two canopy poles, namely the first canopy pole 210 and the second canopy pole 220, and the two canopy poles can be rotated relative to each other to fold the canopy 200 (to be described in detail later), the joint structure 100 of the present invention is applicable to any number of canopy poles and to foldable or non-foldable canopy structures. Although the joint structure 100 of the present invention includes a design that allows the two canopy poles to rotate relative to each other, this design is not necessary and can be changed accordingly according to the form of the canopy.

Now, the components of the joint structure 100 according to the present invention are generally described with reference to FIGS. 4A-5B.

As shown in the figure, the joint structure 100 includes: a fixing seat 110, a socket 130, a sealing member 120, a first canopy rod fixing member 140, a second canopy rod fixing member 150, and a cover 160, a sealing member elastic member 161, and a canopy rod elastic member 162. The fixing seat 110 is a component embedded in the seat body 300, and the socket 130 is a component connected to the canopy 200. The socket 130 can be inserted into the fixing seat 110 so as to install the canopy 200 to the seat body 300. The sealing member 120 is located in the fixing seat 110 and is used to close the opening of the fixing seat 110 when the socket 130 is not inserted into the fixing seat 110. The first canopy rod fixing member 140 and the second canopy rod fixing member 150 are connected to the socket 130 and are used to connect the first canopy rod 210 and the second canopy rod 220 respectively.

Now, the specific structure of the fixing base 110 is described with reference to FIG. 4B, FIG. 9B and FIG. 10B.

As shown in the figure, the fixing seat 110 has a cylindrical fixing seat side wall 112, and the fixing seat side wall 112 has an open end 1121 and a receiving end 1122 arranged opposite to each other. The cross-section of the fixing seat side wall 112 is a non-circular structure, for example, it can be roughly rectangular, and a pair of opposite sides of the rectangle are arc edges. In this way, when the socket 130 with a shape corresponding to the fixing seat 110 is inserted into the fixing seat 110, the socket 130 can be prevented from rotating in the fixing seat 110. It should be understood that the cross-section of the fixing seat side wall 112 can also have other shapes, such as square, trapezoidal, oval, etc.

The fixing seat 110 also has a fixing seat edge 111, which extends outward from the edge of the open end 1121 of the fixing seat side wall 112. The fixing seat edge 111 can be beneficial to fix the fixing seat 110 to the seat body 300 and can modify the appearance of the fixing seat 110. In one embodiment, the fixing seat edge 111 turns and extends from the open end 1121 of the fixing seat side wall 112 toward the accommodating end 1122, so as to be more beneficial to fix the fixing seat 110 to the seat body 300 and better transition and combine the fixing seat 110 with the seat body 300.

The direction from the open end 1121 of the fixing seat side wall 112 to the accommodating end 1122 is called the insertion direction. In the insertion direction, the cross-section of the fixing seat side wall 112 is substantially uniform. A stopper 114 is provided on the inner side of the fixing seat side wall 112. The stopper 114 is located at a position between the open end 1121 and the accommodating end 1122 and protrudes inward from the inner side of the fixing seat side wall 112. The stopper 114 may be close to the open end 1121. For example, the distance from the stopper 114 to the open end 1121 along the insertion direction is approximately one-half to one-third of the total length of the fixing seat 110.

Now, the specific structure of the sealing member 120 is described with reference to Figures 6A-6B.

As shown in the figure, the sealing member 120 is a component inside the fixed seat side wall 112 and can move between the open end 1121 and the accommodating end 1122. The sealing member 120 has a sealing surface 121 at the open end 1121, and the shape of the sealing surface 121 corresponds to the cross-sectional shape of the fixed seat side wall 112 at the open end 1121. In the embodiment shown in the figure, the sealing member 120 is generally plate-shaped. However, it should be understood that the sealing member 120 can be any suitable shape, such as block-shaped, cone-shaped, as long as it has a sealing surface 121 suitable for closing the open end 1121.

In one embodiment, the sealing member 120 is provided with an inverted hook 122, which extends from the sealing surface 121 toward the receiving end 1122 and has a hook portion at the end thereof protruding toward the fixing seat side wall 112. The inverted hook 122 is adapted to be engaged with the stopper portion 114 of the fixing seat side wall 112. When the sealing member 120 is biased to the open end 1121 by the sealing member elastic member 161, the inverted hook 122 abuts against the stopper portion 114 from the receiving end 1122 to prevent the sealing member 120 from being separated from the fixing seat 110. In one embodiment, the sealing member 120 has a plurality of hooks 122, and a plurality of stoppers 114 are provided on the long side and/or short side of the fixing seat side wall 112, and the plurality of hooks 122 are respectively arranged to correspond to the stoppers 114 on the long side and/or short side of the fixing seat side wall 112. In other embodiments, the stopper positioning of the sealing member 120 can be achieved by other means, for example, the cross-section of the open end 1121 is set to be smaller than the sealing surface 121 to prevent the sealing member 120 from being separated from the fixing seat 110.

Now, the specific structure of the socket 130 and the first canopy rod fixing member 140 will be described with reference to Figures 7A-7B.

It should be understood that although in the embodiment of the present invention, the socket 130 is assembled to the first canopy rod fixing member 140, the socket 130 according to the present invention can be applied to different objects.

The socket 130 has a cylindrical socket side wall 131, so that the socket 130 can be inserted into the fixed seat side wall 112 along an insertion direction through the open end 1121. A protrusion 132 is provided on the outer side of the socket side wall 131, and the protrusion 132 protrudes outward from the outer side of the socket side wall 131. When the socket 130 is inserted into the fixed seat 110, the protrusion 132 can pass over the stopper 114 and enter the fixed seat 110, and abut against the stopper 114 from the accommodating end 1122 to prevent the socket 130 from being separated from the fixed seat 110.

In one embodiment, the socket side wall 131 has a plurality of protrusions 132, and the plurality of protrusions 132 correspond to the stoppers 114 on the long sides and/or short sides of the fixing seat side wall 112. Such a design allows each side surface of the socket 130 to be locked in the fixing seat 110, thereby increasing the stability of the canopy 200.

In one embodiment, the protrusion 132 extends on the socket side wall 131 in a direction perpendicular to the insertion direction, and a slot 133 parallel to the insertion direction is provided on the socket side wall 131 at both ends of the protrusion 132. Such a design allows the protrusion 132 to sink through elastic deformation, so that it is easy to pass over the stopper 114 during the insertion process of the socket 130. Moreover, when the user needs to unplug the socket 130, only a little force is needed to make the protrusion 132 pass over the stopper 114 and leave the fixing seat 110.

It should be understood that in other embodiments, the socket 130 can be fixed to the fixing seat 110 in different ways, such as snap fit, friction fit, etc.

The first canopy fixing member 140 is attached to the outer surface of the socket 130 along the insertion direction. In this way, when the socket 130 is fully inserted into the fixing seat 110, the first canopy fixing member 140 is close to the side of the seat body 300 and partially blocks the joint structure 100, so that the entire joint structure 100 is exposed to the outside. Very little part forms a neat appearance. In this embodiment, the first canopy fixing member 140 and the socket 130 are formed as a component. It should be understood that in other embodiments, the first canopy fixing member 140 and the socket 130 can be formed as separate components.

The first canopy fixing member 140 includes a first disc-shaped portion 141 and a first canopy rod connecting portion 142. The first disc-shaped portion 141 is disposed on one side of the socket 130, one end of the first canopy rod connecting portion 142 is connected to the outer periphery of the first disc-shaped portion 141, and the other end extends obliquely upward of the child safety seat and is connected to one end of the U-shaped structure of the first canopy rod 210. The center of the first disc-shaped portion 141 is a hollow accommodation space 143 for accommodating the second canopy rod fixing member 150, the canopy rod elastic member 162, and at least a portion of the cover 160. A plurality of positioning grooves 144 are formed on the circumferential inner wall of the accommodating space 143 for rotational positioning between the second top tent rod fixing member 150 and the first top tent rod fixing member 140.

Now, the second roof pole fixing member 150 is described in detail with reference to Figures 8A-8B.

The second canopy rod fixing member 150 includes a second disc-shaped portion 151 and a second canopy connecting portion 152. The second disc-shaped portion is a portion rotatably attached to the first canopy fixing member 140, one end of the second canopy connecting portion 152 is connected to the outer periphery of the second disc-shaped portion 151, and the other end extends toward the oblique front of the child safety seat and is connected to one end of the U-shaped structure of the second canopy rod 220. A rotating portion 153 is provided on one side of the second disc-shaped portion 151 facing the first disc-shaped portion 141, and the size of the rotating portion 153 substantially corresponds to the accommodation space 143 of the first disc-shaped portion 141, so as to be rotatably accommodated in the accommodation space 143. At least one positioning protrusion 154 is provided on the outer periphery of the rotating portion 153, and the positioning protrusion 154 corresponds to at least one positioning groove 144 on the circumferential inner wall of the accommodating space 143, so that the second top tent pole fixing member 150 can be positioned at one or more specific angle positions relative to the first top tent pole fixing member 140. A through hole 155 is provided at the center of the rotating portion 153, so that a part of the cover 160 passes through the second top tent pole fixing member 150 and is connected to the first top tent pole fixing member 140, so as to form a rotational connection between the second top tent pole fixing member 150 and the first top tent pole fixing member 140.

A canopy rod elastic member 162 is provided between the second disc-shaped portion 151 and the first disc-shaped portion 141, which is, for example, a torsion spring, biasing the first canopy rod fixing member 140 and the second canopy rod fixing member 150 to pivot toward the folding direction. For the sake of brevity, the arrangement of the canopy rod elastic member 162 is not discussed here.

Now, the specific assembly of the child safety seat according to the present invention is described with reference to Figures 9A-10B.

In the state shown in Figures 9A-9B, the socket 130 has been inserted into the fixing seat 110. At this time, the protrusion 132 on the outer wall of the socket 130 is engaged with the stopper 114 on the inner wall of the fixing seat 110 from the side of the accommodation end 1122, thereby keeping the socket 130 inside the fixing seat 110. The sealing member 120 is pressed by the socket 130, thereby overcoming the biasing force of the sealing member elastic member 161 and moving to the vicinity of the accommodation end 1122 of the side wall of the fixing seat. The first canopy fixing member 140 (and the first canopy rod 210 mounted thereon) is close to the side of the seat body 300.

In the state shown in Figures 10A-10B, the socket 130 has been pulled out of the fixing seat 110, and the canopy rod has also been removed. At this time, the sealing member 120 is biased by the sealing member elastic member 161 and moves to the open end 1121 of the fixing seat 110. The inverted hook 122 of the sealing member 120 is engaged with the stopper 114 on the inner wall of the fixing seat 110 from one side of the accommodating end 1122, thereby keeping the sealing member 120 inside the fixing seat 110. The size of the sealing member 120 is designed so that when the inverted hook 122 is engaged with the stopper 114, the sealing surface 121 is exactly flush with the open end 1121. In this way, the sealing surface 121 closes the open end 1121 of the fixing seat 110.

Now, another embodiment of the coupling structure according to the present invention is described with reference to FIGS. 11A to 14C. This embodiment is substantially the same as the previous embodiment, except that the coupling structure further has a release button 170. The function of the release button 170 is to facilitate the separation of the socket 130 from the fixing seat 110.

As shown in the figure, the release button 170 is disposed on the side of the socket 130 and is partially inserted into the socket 130. More specifically, the release button 170 can slide along a substantially vertical direction (i.e., perpendicular to the insertion direction of the socket 130) between a locking position away from the socket 130 and a release position close to the socket.

The release button 170 is provided with a push portion 171 and a locking portion 172 on a side away from the socket 130. The push portion 171 and the locking portion 172 are exposed on the outside of the socket 130, and both are in the form of protruding outward perpendicular to the insertion direction of the socket 130, and the locking portion 172 is closer to the fixing seat 110 than the push portion 171. The release button 170 is provided with a release button elastic member fixing portion 173 on a side facing the socket 130, and a release button elastic member 163 in the form of a spring is fixed at one end to the release button elastic member fixing portion 173, and the other end abuts against the inside of the socket 130, so as to bias the release button 170 to the locking position. The socket 130 is also provided with a limit portion 134, which prevents the release button 170 from moving away from the socket 130.

In this way, when the socket 130 is inserted into the fixing seat 110, the push portion 171 remains outside the fixing seat 110, while the locking portion 172 is inserted into the fixing seat 110 and is engaged with the inner side of the edge of the fixing seat 110. Therefore, the release button 170 can keep the socket 130 in the fixing seat 110. When the user needs to release the fixing seat 110, he only needs to push the push portion 171 toward the socket 130 to easily separate the socket 130 from the fixing seat 110.

In the embodiment with the release button 170, the socket 130 need not be provided with the protrusion 132 and the slot 133.

In summary, the present invention provides a joining structure 100 that can conveniently join the seat body 300 and the canopy 200 of a child safety seat, and no obvious holes will appear when the canopy 200 is removed. According to the joining structure 100 of the present invention, whether the canopy 200 is installed or not, the child safety seat can be provided with a generally neat appearance. Moreover, the joining structure 100 of the present invention is not limited to application in child safety seats, but can also be used to join any two objects.

Now, the second embodiment of the present invention is described with reference to FIGS. 15 to 20. As shown in the figure, the joint structure 910 according to the present invention can be applied to a variety of occasions, including but not limited to child carriers, child dining chairs, wheelchairs, reclining chairs, etc. In addition, in addition to being able to attach the canopy mechanism 50, the joint structure 910 can also be attached to various other facilities. For the purpose of simplicity, the following description is based on the example of the joint structure being applied to a child safety seat and attached to the canopy mechanism 50.

As shown in FIG. 15 , the figure is a schematic diagram of a child safety seat according to the present invention. The child safety seat includes a seat portion 20 and a backrest portion 30. The seat portion 20 and the backrest portion 30 are approximately 90 degrees apart from each other, for example, to enclose a space for the user to sit. Of course, the seat portion 20 and the backrest portion 30 may also be at other angles. In order to improve the comfort of sitting, a headrest portion 40 is also provided at the upper end of the backrest portion 30 for the user's head to rest on.

In addition, in order to provide shade, shelter from rain, block wind, or for privacy and safety, there is now a growing trend to add a canopy mechanism 50 to a child safety seat. At the same time, referring to FIG. 16 , which is a schematic diagram of a child safety seat according to the present invention, the child safety seat shown in the figure is connected with a joint structure 910. Specifically, a fixing seat 32 is provided on the back of the backrest 30. The fixing seat 32 may be in the form of a blind hole, that is, it has an opening and a bottom opposite to the opening. In one embodiment, two fixing seats 32 are provided symmetrically with respect to the central longitudinal axis of the backrest 30. Two joint structures 910 are respectively inserted in the two fixing seats 32, and the two joint structures 910 are attached to the canopy mechanism 50 together. For ease of explanation, the canopy mechanism 50 only shows the main frame structure and does not show the canopy cover.

The joint structure 910 includes two main parts, namely, a socket 912 and a sealing member 914. The sealing member 914 is arranged in a fixed seat 32 arranged on the backrest 30, and the socket 912 can be inserted into the fixed seat 32 or removed from the fixed seat 32. Specifically, the sealing member 914 is always arranged in the fixed seat 32, and the socket 912 abuts against the sealing member 914 when inserted into the fixed seat 32. When the socket 912 is removed from the fixed seat 32, the sealing member 914 moves to block the opening of the fixed seat 32. FIG. 17 schematically shows the socket 912 of the joint structure 910 and the attached canopy mechanism 50. In conjunction with FIG. 18, FIG. 18 is a schematic diagram of the socket of the joint structure according to the present invention.

The socket 912 includes a butting end 921, a connecting end 922, and a middle section 923 disposed between the butting end 921 and the connecting end 922. The butting end 921 butts against the hole sealing member 914 when the socket 912 is inserted into the fixing seat 32. The connecting end 922 can be attached to a component of the canopy mechanism 50, for example. The middle section 923 is provided with a locking portion 9231, an unlocking portion 9232, and a reset portion 9233. The above-mentioned locking portion is, for example, in the form of a hook and extends in a direction substantially perpendicular to the insertion direction of the socket 912. The unlocking part 9232 and the locking part 9231 are formed into an integral structure, for example. In a direction substantially perpendicular to the insertion direction of the socket 912, the movement of the unlocking part 9232 can cause the locking part 9231 to also move in the direction. The reset part 9233 is in the form of a spring in this embodiment. The movement of the unlocking part 9232 in a direction substantially perpendicular to the insertion direction of the socket 912 needs to overcome the elastic force of the reset part 9233. Therefore, after the unlocking part 9232 is released, the reset part 9233 in the form of a spring will release its elastic force and push the locking part 9231 to reset again, that is, move to the initial position. The unlocking part 9232 is configured to be exposed outside the fixing seat 32 to facilitate the manipulation of the unlocking part 9232 from the outside of the fixing seat 32. At the same time, in order to avoid slipping, a corrugated structure is provided on the pressing surface of the unlocking part 9232 to increase friction.

FIG19 shows the specific structure of the hole sealing member 914. In a preferred embodiment, as shown in FIG19, the overall structure of the hole sealing member 914 is elliptical to match the elliptical fixing seat 32. Of course, other structural shapes can also be applied to the hole sealing member 914, as long as the outer contour of the hole sealing member 914 matches the contour of the fixing seat 32. Of course, in order to facilitate manufacturing and reduce costs, the outer contour of the hole sealing member can also be smaller than the contour of the fixing seat 32.

The hole sealing member 914 is in the form of a cover, that is, it includes a cover 941 and a side wall 942 extending vertically from the periphery of the cover 941. A snap-fit member 943 is also provided on the side wall 942. In addition, in order to enable the hole sealing member 914 to move smoothly to block the opening of the fixing seat 32, an elastic member 916 is also provided to provide a restoring force for the movement of the hole sealing member 914. To this end, the elastic member 916 is provided in the cover of the hole sealing member 914, that is, it is accommodated between the cover 941 and the bottom opposite to the opening of the fixing seat 32. When the abutting end 921 of the socket 912 inserted in the fixing seat 32 abuts against the cover 941 of the hole sealing member 914, the elastic member 916 is compressed between the cover 941 of the hole sealing member and the bottom of the fixing seat 32. Once the socket 912 is removed from the fixing seat 32, the compressed elastic member 916 provides a restoring force to push the hole sealing member 914 to move, thereby sealing the opening of the fixing seat 32.

Next, the action process of the joint structure 910 according to the present invention is specifically described with reference to FIG. 20 , which is a schematic diagram of the joint structure 910 according to the present invention, showing the matching relationship between the socket 912 and the sealing member 914 .

The sealing member 914 is always arranged in the fixing seat 32, and the elastic member 916 abuts between the bottom of the fixing seat 32 and the sealing member 914. In the embodiment shown in the attached figure, the elastic member 916 abuts between the bottom of the fixing seat 32 and the cover 941 of the sealing member 914. FIG. 20 shows the state where the socket 912 is inserted into the fixing seat 32. At this time, the abutting end 921 of the socket 912 abuts against the cover 941. And the locking portion 9231 of the socket 912 is locked in the correspondingly arranged snap-fit structure in the fixing seat 32. The canopy mechanism 50 attached to the connecting end 922 of the socket 912 is connected to the child safety seat in this state.

When the canopy mechanism 50 is not used for a long time or needs to be cleaned, the unlocking part 9232 is pressed from the outside of the fixing seat 32 in a direction substantially perpendicular to the insertion direction of the socket 912, and the unlocking part 9232 moves in a direction substantially perpendicular to the insertion direction. Since the unlocking part 9232 and the locking part 9231 form an integral structure, the locking part 9231 also moves in a direction substantially perpendicular to the insertion direction under the drive of the unlocking part 9232, thereby the locking part 9231 is separated from the corresponding engaging structure in the fixing seat 32, and the socket 912 and the canopy mechanism 50 attached thereto can be disassembled at this time.

When the canopy mechanism 50 needs to be attached again, the socket 912 only needs to be inserted into the fixing seat again while pressing the unlocking portion 9232. During the process of pressing the unlocking portion 9232, the reset portion 9233 will be compressed. Therefore, when the locking portion 9231 is released after the socket 912 is inserted in place, the locking portion 9231 will cooperate with the corresponding snap-fit structure in the fixing seat 32 again under the action of the restoring force of the reset portion 9233 to lock the socket 912. In this way, the canopy mechanism 50 connected to the connection end 922 of the socket 912 is connected to the child safety seat again.

In the joint structure 910 according to the present invention, the sealing member 914 is always arranged in the fixing seat 32. Therefore, when the canopy mechanism 50 needs to be disassembled, even if the socket 912 is disassembled from the fixing seat 32, the sealing member 914 will move to block the opening of the fixing seat 32 under the elastic force of the elastic member 916, thereby improving the overall aesthetics of the socket 912 after removal, and at the same time, it can avoid the danger of the user's fingers being accidentally injured by the fixing seat, thereby improving safety.

The above disclosure is only the preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope of the present invention.

100:Joint structure

200: Canopy

300: Seat body

301: Shell

302: Headrest

303: Backrest

304: Seat

310: Side impact protection block

Claims (20)

A coupling structure for detachably coupling a first object to a second object, the coupling structure comprising: a fixing seat connected to the first object, the fixing seat having a fixing seat side wall, the fixing seat side wall extending between an open end and a receiving end disposed oppositely; a socket connected to the second object, the socket having a socket side wall, one end of the socket side wall being provided with a structure suitable for rotational connection, the socket being capable of being inserted into the fixing seat through the open end so as to couple the second object to the first object; and a release button disposed in the socket at the end adjacent to the socket side wall, the release button being movable relative to the socket in a direction away from the socket to a locking position and in a direction close to the socket to a releasing position, so as to selectively lock the socket to the fixing seat. A coupling structure as described in claim 1, wherein the release button can slide between a locking position and a release position in a direction perpendicular to the insertion direction of the socket. The coupling structure as described in claim 1, wherein the release button comprises: a push portion, which protrudes outward perpendicularly to the insertion direction of the socket on a side of the release button away from the socket; and a locking portion, which protrudes outward perpendicularly to the insertion direction of the socket on a side of the release button away from the socket; wherein, when the socket is inserted into the fixing seat, the push portion remains outside the fixing seat, and the locking portion is inserted into the fixing seat and engaged with the inner side of the fixing seat. The joint structure as described in claim 1 further comprises: A sealing member, arranged inside the side wall of the fixing seat, between the accommodating end and the socket, and movable between the open end and the accommodating end, the sealing member having a sealing surface, the shape of which corresponds to the cross-sectional shape of the side wall of the fixing seat at the open end; and a sealing member elastic member, arranged between the sealing member and the accommodating end, arranged to apply a force biasing the sealing member toward the open end so that the sealing member and the socket are elastically abutted; wherein, when the socket is not inserted into the fixing seat, the sealing member is biased to the open end by the sealing member elastic member; when the socket is inserted into the fixing seat, the sealing member is pushed toward the accommodating end by the socket. The joint structure as described in claim 4, wherein: a stopper is provided on the inner side of the side wall of the fixing seat, the stopper is located at a position between the open end and the accommodating end, and protrudes inward from the inner side of the side wall of the fixing seat; a reverse hook is provided on the hole sealing member, the reverse hook extends from the hole sealing surface toward the accommodating end and has a hook portion protruding toward the side wall of the fixing seat at the end; the reverse hook is arranged so that when the hole sealing member is biased to the open end by the hole sealing member elastic member, the reverse hook abuts against the stopper from the accommodating end side to prevent the hole sealing member from being separated from the fixing seat. As described in claim 5, the inner side of the side wall of the fixing seat is provided with a plurality of the stoppers, forming a circle along the inner circumference of the side wall of the fixing seat, or symmetrically arranged on the inner circumference of the side wall of the fixing seat in a discrete manner. The joint structure as described in claim 4, wherein: The fixing seat also has a fixing seat edge, and the fixing seat edge extends outward from the edge of the open end of the fixing seat side wall; when the socket is not inserted into the fixing seat, the sealing surface of the sealing member is roughly flush with the fixing seat edge. The joint structure as described in claim 4, wherein in the insertion direction of the socket, the sum of the lengths of the socket and the hole sealing member is approximately equal to the length of the fixing seat, so that when the socket is inserted into the fixing seat, the hole sealing member abuts against the receiving end of the fixing seat. A coupling structure is used to detachably couple a first object to a second object, the coupling structure comprising: a fixing seat provided on the first object; a socket provided on the second object, one end of the socket being provided with a structure suitable for rotational connection, the socket being pluggable and connected to the fixing seat and being removable from the fixing seat, wherein the socket comprises: a locking portion, which is movable relative to the socket and is used to lock the socket in the fixing seat; and an unlocking portion, which is exposed outside the fixing seat when the socket is inserted into the fixing seat, and the unlocking portion can be operated to cause the locking portion to move and unlock the locking of the socket in the fixing seat. The joint structure as described in claim 9, wherein the locking portion is in the form of a hook, and the hook extends in a direction substantially perpendicular to the insertion direction of the socket, so as to be locked in a correspondingly arranged snap-fit structure in the fixing seat when the socket is inserted in the fixing seat; the unlocking portion and the locking portion are formed as an integral structure, in a direction substantially perpendicular to the insertion direction of the socket. The engaging structure as described in claim 9, wherein the unlocking portion is in the form of a button having a corrugated surface. The joint structure as described in claim 9, wherein the socket includes a butt end, a connection end, and a middle section disposed between the butt end and the connection end, the connection end is configured to connect to the second object, and the locking portion and the unlocking portion are disposed in the middle section. The joint structure as described in claim 12, wherein a reset portion is also provided in the middle section, and the reset portion is configured to reset the locking portion. The joint structure as described in claim 13, wherein the reset portion is in the form of a reset spring that abuts against the unlocking portion. The joint structure as described in claim 9 further includes a sealing member that can be movably disposed in the fixing seat and abuts against the socket when the socket is inserted into the fixing seat, and can be moved to seal the opening of the fixing seat when the socket is removed from the fixing seat. A joint structure as described in claim 15, wherein the outer contour of the sealing member is formed to match the contour of the fixing seat. The joint structure as described in claim 15 further includes an elastic member, which is arranged between the sealing member and the bottom of the fixing seat opposite to the opening, or is arranged at the bottom of the sealing member. As described in claim 17, the sealing member is in the form of a cover, including a cover and side walls extending vertically from the periphery of the cover, and the elastic member is arranged in the space surrounded by the side walls of the sealing member and abuts between the cover and the bottom of the fixing seat. A child safety seat comprises: a seat body; a canopy that can be connected to the upper part of the seat body; and a connection structure as described in any one of claims 1 to 18, which is used to detachably connect the canopy to the upper part of the seat body; two connection structures are respectively arranged on both sides of the seat body, and the accommodating end of each fixing seat is embedded in the seat body from the corresponding side of the seat body, and the open end of each fixing seat is exposed on the side of the seat body. A child safety seat as described in claim 19, wherein: the canopy includes a first canopy rod and a second canopy rod that are substantially U-shaped, and each of the joint structures further includes a first canopy rod fixing member and a second canopy rod fixing member, wherein the first canopy rod fixing member is fixed to the socket of a corresponding one of the two joint structures, and the second canopy rod fixing member is pivotally connected to the first canopy rod. Fixing member; the two ends of the first tent rod are respectively fixedly connected to the first tent rod fixing member of the corresponding one of the two joint structures, and the two ends of the second tent rod are respectively fixedly connected to the two ends of the second tent rod fixing member of the corresponding one of the two joint structures, so that the second tent rod can rotate relative to the first tent rod around an axis parallel to the insertion direction of the socket.

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