CN217471605U - Child seat - Google Patents

Abstract

The application relates to a child seat belongs to the technical field of seat equipment, and it includes: the chair comprises a chair seat, a chair back and a locking mechanism, wherein the chair back and the locking mechanism are in sliding insertion with the chair seat; when the locking piece is arranged on the chair back in a sliding manner, the chair seat is provided with a fixing hole for the locking piece to penetrate through, and when the locking piece is arranged on the chair seat in a sliding manner, the chair back is provided with a fixing hole for the locking piece to penetrate through in a sliding manner; when the locking piece is in a locking state, the locking piece is partially inserted into the fixing hole, and when the locking piece is in a locking and unlocking state, the locking piece is withdrawn from the fixing hole. This application has the effect that the convenience was dismantled the back of the chair.

Description

Child seat

Technical Field

The application relates to the technical field of seat equipment, in particular to a child seat.

Background

Currently, a child seat is a seat specially designed for facilitating dining, playing and other activities of a child.

In the related art, a child seat includes a seat leg, a seat fixedly connected to the seat leg, and a seat back fixedly connected to the seat, wherein a dining plate for a child to have a meal or play is installed on the seat.

To the correlation technique among the above-mentioned, the inventor thinks that among the above-mentioned technical scheme, because the whole volume of children's seat is great, when people are going on a journey daily, inconvenient carrying the transportation to children's seat.

SUMMERY OF THE UTILITY MODEL

In order to conveniently carry the transportation to child seat, this application provides a child seat.

The application provides a children's seat adopts following technical scheme:

a child seat comprises a seat, a chair back and a locking mechanism, wherein the chair back and the locking mechanism are in sliding insertion connection with the seat;

when the locking piece is arranged on the chair back in a sliding manner, the chair seat is provided with a fixing hole for the locking piece to penetrate through, and when the locking piece is arranged on the chair seat in a sliding manner, the chair back is provided with a fixing hole for the locking piece to penetrate through in a sliding manner;

when the locking piece is in a locked state, the locking piece is partially inserted into the fixing hole, and when the locking piece is in an unlocked state, the locking piece is withdrawn from the fixing hole.

By adopting the technical scheme, when the chair back is installed, the chair back is slidably inserted into the chair seat and then slidably inserted into the fixing hole through the locking piece, so that the chair back is fixedly installed on the chair seat; when dismantling the back of the chair, with the locking piece gliding movement to the unlocked state, promptly: the locking piece is withdrawn from the fixing hole, and then the chair back slides out from the chair seat to finish the disassembly of the chair back. Through adopting the back of the chair and the mode that the seat support can dismantle the connection, when transporting children's seat, can separately place seat support and back of the chair, reduced because children's seat whole is bulky, the inconvenient condition of placing and transporting to it is convenient follow-up to install the back of the chair again on the seat support.

Optionally, the locking piece slide set up in on the back of the chair, the back of the chair with the seat support rotates to be connected, the fixed orifices in a plurality of has been seted up on the seat support, works as when the locking piece is in the lock-out state, the locking piece inserts in one of them the fixed orifices.

Through adopting above-mentioned technical scheme, rotate with the seat support through the back of the chair and be connected to adjust the turned angle of the back of the chair, and through seting up a plurality of fixed orificess, wear to locate different turned angle of the back of the chair when the locking piece is downthehole, fix the different turned angle of the back of the chair, and then make children's seat when using, the state that children can select end to sit or lie, comfort level when improving children's use.

Optionally, the locking mechanism further comprises an elastic component connected with the locking piece, and the elastic component has an elastic tendency of pressing the locking piece in the fixing hole.

Through adopting above-mentioned technical scheme, compress tightly the locking piece in the fixed orifices through elastic component, make the locking piece more stable in the position of locking state to make the back of the chair more stable for the position of seat support, security when improving children's seat and using.

Optionally, the elastic assembly includes an extension piece connected to the locking piece for pulling the locking piece out of the fixing hole, and a first elastic piece disposed on the seat back for pressing the locking piece into the fixing hole.

Through adopting above-mentioned technical scheme, through setting up first elastic component, conveniently compress tightly the locking piece in the fixed orifices to make the locking piece more stable in the position of locking state, through setting up the extension piece, conveniently pull out the locking piece from the fixed orifices, thereby conveniently carry out the unblock to the back of the chair.

Optionally, the seat includes a seat plate and two side plates respectively disposed at two sides of the seat plate, the fixing holes are formed in the side plates, at least two fixing holes are formed in each side plate, two locking pieces are provided, and the locking pieces correspond to the side plates one to one;

the extension piece comprises two extension parts and a connecting part fixedly connected with the two extension parts, the extension parts correspond to the locking parts one by one and are connected with each other, and the first elastic part has elastic potential energy for driving the connecting part to move so that the extension piece has a moving trend for pressing the locking part in the fixing hole.

Through adopting above-mentioned technical scheme, lock the back of the chair through setting up two locking pieces, when the locking piece was in the locking station, the back of the chair atress was more balanced, security when improving children's seat and using.

Through setting up connecting portion, connect two extensions, make two extensions can synchronous motion, drive two extensions through a first elastic component, make a first elastic component compress tightly two locking pieces in the fixed orifices simultaneously, reduced first elastic use, and make the structure compacter.

Optionally, the locking piece slide set up in on the back of the chair, set up the confession on the back of the chair the locking piece slides the passageway that slides of wearing to establish.

Through adopting above-mentioned technical scheme, lead to the removal of locking piece through the passageway that slides, make the locking piece more stable in the sliding motion process between locking state and unlocking state.

Optionally, a positioning plate is arranged on the extending part, a sliding limiting hole is formed in the positioning plate, the length direction of the sliding limiting hole is the same as the telescopic direction of the first elastic part, a positioning column is arranged on the chair back, and the positioning column slides and penetrates through the sliding limiting hole.

Through adopting above-mentioned technical scheme, because the length value in the spacing hole that slides is the fixed value, wear to locate in the spacing hole that slides through the reference column, carry on spacingly to the displacement distance of locating plate and extension piece to difficult emergence makes the displacement distance overlength's of locking piece the condition owing to excessive pulling extension piece, and then makes the locking piece be difficult for being pulled out the passageway that slides, makes the passageway that slides can continuously lead to the removal of locking piece.

Optionally, a sliding groove is formed in the side plate, a sliding convex part which is slidably embedded into the sliding groove is arranged on the chair back, and the sliding convex part is rotatably connected with the side plate at the bottom of the sliding groove;

the sliding convex part is provided with a limiting part, and the side plate is provided with a limiting plate used for limiting the limiting part in the sliding groove.

Through adopting above-mentioned technical scheme, will slide the convex part through the limiting plate and spacing at the inslot that slides, make the convex part that slides difficult follow the inslot that slides deviate from to it is more stable to make seat support and back of the chair before be connected.

Optionally, a positioning groove is formed in the sliding convex part, a positioning part is arranged on the side plate, and when the sliding convex part moves to the bottom of the sliding groove, the positioning part is embedded into the positioning groove.

By adopting the technical scheme, the position of the sliding convex part in the sliding groove is limited by the positioning piece, so that the sliding convex part is not easy to move at the groove bottom of the sliding groove, and the connection between the chair back and the chair seat is more stable.

Optionally, a second elastic piece connected with the positioning piece is arranged on the side plate, and the second elastic piece has an elastic tendency of pressing the positioning piece in the positioning groove.

Through adopting above-mentioned technical scheme, compress tightly the setting element in the constant head tank through the second elastic component, make the convex part that slides in the position of sliding groove bottom more stable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the chair back and the chair seat are in sliding insertion connection, and the chair back is locked through the locking piece, so that the detachable connection between the chair back and the chair seat is realized, and the installation and the transportation of the child chair are facilitated;

2. the chair back is rotatably connected with the chair seat and is provided with a plurality of fixing holes, so that the chair back can be fixed at different rotating angles;

3. through setting up first elastic component, make the locking piece more stable in the position of locking state, through setting up the extension piece, conveniently pull out the locking piece from the fixed orifices in.

Drawings

Fig. 1 is a schematic view of the overall structure of a child seat according to an embodiment of the present application.

Fig. 2 is a partial exploded view of the chair back and seat of the present application.

Fig. 3 is a partial structural schematic view of a chair back according to an embodiment of the present application.

Fig. 4 is a sectional view of the elastic plate and the side plate of the embodiment of the present application.

FIG. 5 is an exploded view of the positioning member, side plate and glide tab in another embodiment.

FIG. 6 is an exploded view of the positioning member, side plate and glide tab in another embodiment.

Fig. 7 is an exploded view of the positioning member, positioning spring, abutment block and lifting block in another embodiment.

Figure 8 is a schematic view of another embodiment of the spring assembly and chair back.

Fig. 9 is a schematic view of the overall structure of the chair back and the extension member according to the embodiment of the present application.

Fig. 10 is a schematic view of the entire structure of a chair back according to an embodiment of the present application.

Fig. 11 is a schematic view of the overall structure of an extension member according to an embodiment of the present application.

Fig. 12 is an enlarged view of a portion a in fig. 10.

Fig. 13 is a schematic structural view of a pull cord, a locking member, and a hold-down spring in another embodiment.

Fig. 14 is a schematic view of the entire structure of the locking member and the pulling rope in another embodiment.

FIG. 15 is a schematic view of a seat back, alignment block and locking block in another embodiment.

FIG. 16 is an exploded view of the locking member, side plate and seat back in another embodiment.

Description of reference numerals: 1. a chair seat; 11. a side plate; 111. a sliding groove; 112. a limiting plate; 113. perforating holes; 114. a fixing hole; 115. a sliding hole; 12. a seat plate; 121. a foot plate; 13. a dinning board; 14. a positioning member; 141. a guide slope; 142. a bump; 15. a positioning spring; 16. a cavity; 17. a connecting member; 171. a butting block; 18. lifting the block; 181. a sliding slope; 182. fixing the groove; 19. an elastic plate; 191. a fixed part; 192. a spring piece portion; 193. a set screw; 110. a support sheet; 2. a chair back; 21. a bending section; 211. a slip projection; 2111. a limiting part; 2112. positioning a groove; 212. a communicating hole; 22. a regulating channel; 23. a slipping channel; 241. a communication port; 242. mounting a plate; 25. a connecting plate; 26. a fixing plate; 27. a limiting channel; 271. a first limit plate; 272. a second limiting plate; 273. bending the section; 274. a straight line segment; 275. a drop-preventing member; 28. a positioning column; 29. a placement groove; 210. an abutment wall; 3. a chair leg portion; 4. a locking member; 41. a toggle sheet; 51. a tension spring; 52. an extension member; 521. an extension portion; 522. a connecting portion; 5221. a limiting member; 523. positioning a plate; 5231. a slippage limiting hole; 53. a first elastic member; 54. a shifting block; 55. pulling a rope; 551. a bifurcated segment; 552. merging the sections; 553. positioning blocks; 5531. rotating the column; 56. a compression spring; 57. a locking block; 571. guiding the sliding surface; 58. and locking the grooves.

Detailed Description

The present application is described in further detail below with reference to figures 1-16.

The embodiment of the application discloses a child seat.

Referring to fig. 1, the child seat includes a seat leg portion 3, a seat base 1 disposed above the seat leg portion 3, a seat back 2 inserted in the seat base 1 in a sliding manner, and a locking mechanism, wherein the seat back 2 is rotatably disposed on the seat base 1, and the locking mechanism is used for locking the seat back 2 at different rotation angles, so that a child can sit up or lie down on the child seat.

Referring to fig. 1, the seat 1 includes a seat 12 and two side plates 11 fixedly connected to two sides of the seat 12, in this embodiment, the side plates 11 are perpendicular to and integrally connected to the seat 12. A dining plate 13 for dining or playing of children is arranged on the two side plates 11, and a foot plate 121 for placing the feet of the children is arranged on one side of the seat plate 12 far away from the chair back 2.

Referring to fig. 1, two side plates 11 of the seat back 2 are respectively bent and extended to form bent portions 21, the bent portions 21 are in one-to-one correspondence with the side plates 11 and are rotatably connected with the side plates 11, and the two bent portions 21 may be located between the two side plates 11 or the two side plates 11 may be located between the two bent portions 21. In this embodiment, the two bent portions 21 are located between the two side plates 11.

Referring to fig. 2, a sliding groove 111 is formed in the side plate 11, the sliding groove 111 is communicated with a side wall of the top of the side plate 11 and a side wall of the side plate 11 close to the seat back 2, a sliding protrusion 211 is integrally connected to a side wall of the bending portion 21, and when the seat back 2 is installed, the sliding protrusion 211 is inserted into the sliding groove 111 in a sliding manner from the top of the side plate 11, so that the sliding insertion between the seat back 2 and the seat 1 is realized. In this embodiment, the two side plates 11 are both provided with sliding grooves 111, and correspondingly, the two bending portions 21 are integrally connected with sliding protrusions 211.

In another embodiment, the sliding protrusion 211 may be mounted on the side plate 11, and the sliding groove 111 is opened on the bending portion 21, in which case, the sliding groove 111 is communicated with the bottom side wall of the bending portion 21. When the backrest 2 is mounted, the sliding protrusion 211 is inserted into the sliding groove 111 from the bottom of the bent portion 21, thereby achieving the sliding engagement between the backrest 2 and the seat 1.

Referring to fig. 2, in the present embodiment, the sliding groove 111 is provided on the side plate 11, and the sliding protrusion 211 is cylindrical, and the axial direction of the sliding protrusion 211 is preferably horizontal. When the sliding convex part 211 slides to the bottom of the sliding groove 111, the sliding convex part 211 is arranged in a cylindrical shape, so that the sliding convex part 211 can rotate at the bottom of the sliding groove 111, and the chair back 2 and the side plate 11 can rotate relatively.

Referring to fig. 2, in the present embodiment, the length direction of the sliding groove 111 is preferably a vertical direction, the groove walls on both sides of the sliding groove 111 are inclined with respect to the vertical direction, and the sectional area of the sliding groove 111 along the vertical direction is gradually reduced from one end close to the top notch of the sliding groove 111 to the other end, so that the sliding protrusion 211 is convenient to slide to the bottom of the sliding groove 111 through the top notch of the sliding groove 111.

Referring to fig. 2, a limiting portion 2111 is connected to a side of the sliding protrusion 211 away from the bending portion 21, in this embodiment, the limiting portion 2111 is disposed in a circular ring shape, and the limiting portion 2111 is sleeved on the sliding protrusion 211 and is integrally connected to the sliding protrusion 211. The side plate 11 is integrally connected with a limit plate 112 for abutting against one side of the limit portion 2111 close to the bent portion 21, and the limit plate 112 is located at the bottom of the sliding groove 111. When the sliding protrusion 211 slides to the bottom of the sliding groove 111, the stopper portion 2111 is stopped in the sliding groove 111 by the stopper plate 112, so that the sliding protrusion 211 is not easily detached from the side of the sliding groove 111 close to the seat back 2. In this embodiment, two limiting plates 112 are preferably disposed on each side plate 11, and the two limiting plates 112 are respectively located at two sides of the sliding groove 111.

Referring to fig. 2 and 3, in order to further stabilize the position of the sliding protrusion 211 at the bottom of the sliding groove 111, a positioning groove 2112 is disposed on a side of the sliding protrusion 211 away from the bending portion 21. The side plate 11 is provided with a positioning member 14, and when the sliding protrusion 211 slides to the bottom of the sliding groove 111, the positioning member 14 is partially inserted into the positioning groove 2112 to position the sliding protrusion 211. Wherein, the top of the positioning member 14 is provided with a guide slope 141 to make the positioning member 14 more easily inserted into the positioning slot 2112.

Referring to fig. 3 and 4, in this embodiment, the positioning element 14 is block-shaped, in order to make the position of the positioning element 14 in the positioning slot 2112 more stable, the side plate 11 is provided with a second elastic element, the second elastic element is an elastic plate 19, a cavity 16 for placing the elastic plate 19 is disposed inside the side plate 11, the elastic plate 19 includes a fixing portion 191 and an elastic sheet portion 192, the fixing portion 191 is both plate-shaped, the elastic sheet portion 192 is long plate-shaped and is vertically and integrally connected with the fixing portion 191, and the elastic sheet portion 192 abuts against a cavity wall of the cavity 16 on a side close to the sliding slot 111. A fixing screw 193 is inserted into the fixing portion 191, and the fixing screw 193 is screwed to the side plate 11 to fix the fixing portion 191 to the side plate 11. The positioning element 14 is integrally disposed on one side of the elastic sheet portion 192 close to the sliding slot 111, a through hole 113 communicating with the cavity 16 is formed in the side plate 11, and the positioning element 14 is disposed through the through hole 113 and partially enters the sliding slot 111.

Referring to fig. 3 and 4, the elastic piece portion 192 may be made of plastic or metal, and in this embodiment, the elastic piece portion 192 is made of plastic, so that the elastic piece portion 192 has good deformation performance and a tendency of elasticity to press the positioning element 14 into the positioning slot 2112. The cavity 16 is communicated with the bottom of the side plate 11, and the bottom of the spring part 192 protrudes out of the opening at the bottom of the cavity 16. When the sliding protrusion 211 slides into the bottom of the sliding groove 111, the positioning part 14 is clamped into the positioning groove 2112; when the sliding protrusion 211 needs to be withdrawn from the sliding slot 111, the elastic piece portion 192 is shifted in a direction away from the sliding slot 111, so that the elastic piece portion 192 drives the positioning member 14 to be withdrawn from the positioning slot 2112, and then the seat back 2 is withdrawn from the sliding slot 111. The positioning element 14 and the side plate 11 are in clearance fit, so that the positioning element 14 is not easily interfered with the hole wall of the through hole 113 in the process that the positioning element 14 enters or exits the sliding groove 111.

Referring to fig. 5, in another embodiment, the positioning element 14 is disposed in a rod shape, and the end of the positioning element 14 is integrally connected with a protrusion 142, at this time, the positioning element 14 slides through the through hole 113, and the protrusion 142 is located on a side of the side plate 11 away from the bending portion 21. The positioning part 14 can be fixed with the side plate 11 through clamping, can also be in threaded connection with the side plate 11, and can also be in transition fit with the side plate 11, so that when the child seat is normally used, the positioning part 14 is not easy to withdraw from the positioning groove 2112, and in the process of disassembling the seat back 2, the positioning part 14 can be manually moved out from the positioning groove 2112.

Referring to fig. 6 and 7, in another embodiment, the second elastic member is a positioning spring 15, the positioning spring 15 is located inside the side plate 11, and one end of the positioning spring 15 is fixedly connected to the inner side wall of the side plate 11, and the other end is fixedly connected to the positioning member 14, so as to press the positioning member 14 into the positioning slot 2112.

Referring to fig. 6 and 7, further, a connecting member 17 is disposed on the positioning member 14, in this embodiment, the connecting member 17 is a flexible rope, the connecting member 17 is disposed through the positioning spring 15 and a side wall of the side plate 11 away from the bending portion 21, one end of the connecting member 17 away from the positioning member 14 is fixedly connected with a butting block 171, and the butting block 171 abuts against a side wall of the side plate 11 away from the bending portion 21. By pulling the abutting block 171, the positioning spring 15 is contracted, and the positioning member 14 is withdrawn from the positioning groove 2112.

Referring to fig. 6 and 7, further, the side plate 11 is integrally provided with two lifting blocks 18, in this embodiment, the two lifting blocks 18 are preferably provided, and the two lifting blocks 18 are respectively located at two sides of the abutting block 171. The lifting block 18 is provided with a sliding inclined plane 181 which is obliquely arranged, one end of the sliding inclined plane 181 is smoothly connected with the outer side wall of the side plate 11, and the sliding inclined plane 181 is gradually away from the side plate 11 from one end to the other end of the side plate 11.

In the process of withdrawing the positioning element 14 from the positioning slot 2112, the abutting block 171 is rotated to slide the abutting block 171 on the sliding inclined surface 181, so that the abutting block 171 gradually moves away from the side plate 11, and the positioning element 14 is pulled out from the positioning slot 2112 through the connecting element 17, at this time, the positioning spring 15 is further compressed.

Referring to fig. 6 and 7, a fixing groove 182 is formed in one side of the lifting block 18 away from the side plate 11, when the abutting block 171 slides into the fixing groove 182 along the sliding inclined plane 181, the abutting block 171 is limited by the fixing groove 182, so that the abutting block 171 is not easy to rotate, the sliding convex part 211 can conveniently slide out of the sliding groove 111, and the chair back 2 can be taken out of the chair seat 1.

In another embodiment, the abutting block 171 may be replaced by a fixing ring, a hook is fixedly disposed on a side wall of the side plate 11 away from the seat back 2, and after the positioning member 14 is pulled out from the positioning slot 2112, the fixing ring is hung on the hook to fix the positions of the connecting member 17 and the positioning member 14.

Referring to fig. 2, the locking mechanism includes a locking member 4, the locking member 4 having a locked state and an unlocked state, and when the locking member 4 is in the locked state, the locking member 4 locks the rotation angle of the seatback 2. The locking member 4 may be slidably disposed on the seat back 2, or slidably disposed on the side plate 11.

Referring to fig. 2 and fig. 3, in the present embodiment, the locking member 4 is rod-shaped and is slidably disposed on the seat back 2, the bending portion 21 of the seat back 2 is provided with two communicating holes 212 for the locking member 4 to slidably penetrate therethrough, in the present embodiment, two side plates 11 are provided, so that two locking members 4 are correspondingly provided, each side plate 11 is provided with a fixing hole 114 for the locking member 4 to penetrate therethrough, and the fixing holes 114 on the two side plates 11 are equal in number and correspond to each other one by one.

Referring to fig. 2, when one fixing hole 114 is provided on each side plate 11: when the locking member 4 is in the locked state, the sliding protrusion 211 is located at the bottom of the sliding groove 111, one end of the locking member 4 passes through the communication hole 212 and is inserted into the fixing hole 114, and the locking member 4 is partially inserted into the fixing hole 114 to fix the backrest 2, thereby locking the backrest 2 to the seat 1. When the locking member 4 is in the unlocked state, the locking member 4 is withdrawn from the fixing hole 114.

Referring to fig. 2, when the fixing holes 114 on each side plate 11 are provided in plurality, since the chair back 2 rotates with the central axis of the sliding protrusion 211 as the rotation axis when the sliding protrusion 211 is slidably inserted into the bottom of the sliding groove 111, the fixing holes 114 are disposed at equal distances from the central axis of the sliding protrusion 211, that is: the fixing holes 114 are all located on the circumferential arc surface of the cylinder with the central axis of the sliding convex part 211 as the axis, so that the locking piece 4 can be inserted into different fixing holes 114 to lock different rotation angles of the chair back 2. In the present embodiment, the number of the fixing holes 114 is preferably three per side plate 11, so that the seat back 2 can be fixed at three different rotation angles.

Referring to fig. 2 and 3, in order to better support the seat back 2 by the seat 1, a support piece 110 is integrally connected to the seat 1, a contact wall 210 is provided at the bottom of the seat back 2, and the support piece 110 is located below the contact wall 210 and contacts the contact wall 210, thereby supporting the seat back 2. The supporting sheet 110 is disposed in an arc shape, a center of curvature of the supporting sheet 110 is located on a central axis of the sliding protrusion 211, and the abutting wall 210 is correspondingly disposed in an arc shape.

Referring to fig. 2 and 3, in order to better insert the locking member 4 into the fixing hole 114, the seat back 2 is provided with a sliding channel 23 for the locking member 4 to slidably penetrate and communicate with the communication hole 212 on the side plate 11, so as to guide the sliding movement direction of the locking member 4, in this embodiment, the sliding channel 23 is tubular.

Referring to fig. 8, in another embodiment, the locking element 4 can be connected with the sliding channel 23 by means of a sliding plug, for example: the locking piece 4 is fixedly connected with a poking piece 41, the chair back 2 is provided with a communication opening 241 for the poking piece 41 to penetrate through, the communication opening 241 is long-shaped, the length direction of the communication opening 241 is the same as that of the sliding channel 23, and the poking piece 41 slides through the communication opening 241 and protrudes out of the back side wall of the chair back 2. During the process of unlocking the chair back 2, the poking piece 41 is poked to drive the locking piece 4 to withdraw from the fixing hole 114.

Referring to fig. 2 and 8, further, in order to make the locking member 4 not easy to withdraw from the fixing hole 114, the locking mechanism further includes an elastic component having an elastic tendency to press the locking member 4 in the fixing hole 114.

Referring to fig. 2 and 8, in another embodiment, the elastic component is a telescopic spring 51, a mounting plate 242 fixedly connected to an end of the telescopic spring 51 is disposed on the seat back 2, one end of the telescopic spring 51 away from the mounting plate 242 abuts against or is fixedly connected to the locking member 4, and the locking member 4 is pressed in the fixing hole 114 by the telescopic spring 51.

Referring to fig. 2, 9 and 10, in the present embodiment, in order to enable the locking member 4 to be pressed into the fixing hole 114 and simultaneously facilitate the pulling out of the locking member 4 from the fixing hole 114, the elastic assembly includes an extending member 52 connected to the locking member 4 and a first elastic member 53 disposed on the seat back 2, the extending member 52 is made of a plastic material with elastic deformation capability, such as metal, plastic or other chemical products, in the present embodiment, the material of the extending member 52 is plastic, and the first elastic member 53 is preferably a spring.

Referring to fig. 2, 11 and 12, since the locking member 4 is provided with two in the present embodiment, the extending member 52 includes two extending portions 521 which are provided in a long shape, the extending portions 521 correspond to the locking member 4 one by one, one end of the extending portion 521 is connected with one end of the locking member 4 far away from the fixing hole 114 by injection molding, and the first elastic member 53 acts on the extending portion 521, so that the extending portion 521 can press the locking member 4 in the fixing hole 114. When the seat back 2 is unlocked, the extension 521 can be pulled to make the extension 521 drive the locking member 4 to withdraw from the fixing hole 114.

When the number of the first elastic members 53 is two, the first elastic members 53 correspond to the extending portions 521 one by one, and at this time, an abutting plate may be disposed on the extending portions 521, one end of the first elastic member 53 is fixedly mounted on the seat back 2, and the other end of the first elastic member 53 abuts against the abutting plate, so as to apply elastic force to the extending portions 521, so that the extending portions 521 fix the locking member 4 in the locking state.

Referring to fig. 10 and 11, in the present embodiment, the first elastic member 53 is preferably one, the first elastic member 53 is located between the two bent portions 21, and the distance between the first elastic member 53 and the two bent portions 21 is equal, the extending member 52 further includes a connecting portion 522, two sides of the connecting portion 522 are respectively connected with the two extending portions 521 through injection molding, the first elastic member 53 acts on the connecting portion 522 to enable the two extending portions 521 to move synchronously, and the two extending portions 521 are both bent and symmetrically disposed about the connecting portion 522.

Referring to fig. 2, 10 and 11, a fixing plate 26 is integrally connected to the seat back 2 by injection molding, when the first elastic member 53 is a compression spring, the fixing plate 26 is located above the connecting portion 522, one end of the first elastic member 53 is fixedly connected to the fixing plate 26, and the other end of the first elastic member 53 abuts against or is fixedly connected to the connecting portion 522, and the first elastic member 53 has an elastic tendency to drive the extending member 52 and the locking member 4 to move toward the position of the fixing hole 114; when the first elastic member 53 is a tension spring, the fixing plate 26 is located below the connecting portion 522, one end of the first elastic member 53 is fixedly connected to the fixing plate 26, the other end of the first elastic member 53 is fixedly connected to the connecting portion 522, and the first elastic member 53 has an elastic tendency to pull the extending member 52 and the locking member 4 to move toward the position of the fixing hole 114. In the present embodiment, the first elastic member 53 is preferably a compression spring.

Referring to fig. 10, in order to make the moving track of the extending portion 521 more stable, the seat back 2 is provided with a limiting channel 27 for the extending portion 521 to slide through, in this embodiment, the limiting channel 27 is surrounded by a plurality of plate bodies, and specifically, it is preferable that two first limiting plates 271 integrally connected with the seat back 2 and two second limiting plates 272 integrally connected with the seat back 2 are provided. The two first limiting plates 271 are symmetrically arranged with respect to the first elastic member 53, the two second limiting plates 272 are both located between the two first limiting plates 271, and the length of the first limiting plate 271 is greater than that of the second limiting plates 272.

Referring to fig. 10 and 11, the limiting passage 27 includes two bending sections 273 and one straight section 274, the bending section 273 is defined by the first limiting plate 271 and the second limiting plate 272, and the straight section 274 is defined by the two first limiting plates 271. Furthermore, the backrest 2 is provided with a retaining member 275 for abutting against the extension portion 521, so that the extension portion 521 is not easily removed from the limiting channel 27. In this embodiment, the retaining member 275 is preferably provided on the bending section 273, and the retaining member 275 is preferably provided on the first stopper plate 271.

Referring to fig. 10 and 11, the positioning plate 523 is disposed on the seat back 2 or the extension portion 521, and in this embodiment, the positioning plate 523 is preferably plate-shaped, is located in the straight line portion 274, and is integrally connected to the two extension portions 521. The positioning plate 523 is provided with a sliding limiting hole 5231, the sliding limiting hole 5231 is a long strip, preferably a waist-shaped hole, the length direction of the sliding limiting hole 5231 is the same as the extension direction of the first elastic element 53, the seat back 2 is integrally connected with a positioning column 28, and the positioning column 28 is slidably disposed in the sliding limiting hole 5231.

Referring to fig. 2, 10 and 11, when the locking member 4 moves between the locking state and the unlocking state, the positioning post 28 is inserted into the sliding position-limiting hole 5231 at different positions. The moving distance of the positioning plate 523 and the extending part 521 is limited by the sliding limiting hole 5231 and the positioning column 28, so that the moving distance of the locking member is limited, and the locking member 4 is not easy to withdraw from one end of the sliding channel 23 far away from the fixing hole 114 because the extending part 521 is pulled excessively by people, thereby facilitating the subsequent locking member 4 to enter the fixing hole 114 along the sliding channel 23.

In another embodiment, the positioning column 28 may be disposed on the positioning plate 523, the sliding through hole 113 is disposed on the seat back 2, and the moving distance between the positioning plate 523 and the extending portion 521 is limited by the positioning column 28.

Referring to fig. 10 and 12, in order to stabilize the position of the first elastic member 53, the seat back 2 is provided with a placement groove 29 for placing the first elastic member 53, the longitudinal direction of the placement groove 29 is the same as the longitudinal direction of the first elastic member 53, and the positioning plate 523 covers the notch of the placement groove 29. The connecting portion 522 is integrally connected to a limiting member 5221, in this embodiment, an end of the first elastic member 53 away from the fixing plate 26 is sleeved on the limiting member 5221 to limit the position of the first elastic member 53. In another embodiment, the retaining member 5221 can be disposed in a tubular shape, and one end of the first elastic member 53 away from the fixing plate 26 is inserted into the retaining member 5221.

Referring to fig. 2, 10 and 11, further, one end of each of the two extending portions 521, which is away from the locking element 4, is integrally connected with a toggle block 54, an adjusting channel 22 for the toggle block 54 to slide through is formed on the seat back 2, and the adjusting channel 22 is communicated with a back side wall of the seat back 2. When the locking member 4 is unlocked, the dial 54 is manually moved, so that the dial 54 moves the two extending portions 521, thereby pulling the locking member 4 out of the fixing hole 114. In this embodiment, it is preferable that the dial 54 moves in the sliding channel 23 in the vertical direction, so that when a person leaves the dial 54, the dial 54 can be automatically reset under the action of gravity, so as to enable the locking member 4 to enter the locking state.

Based on the inventive concept of pulling the locking element 4 out of the fixing hole 114 by means of the extension element 52, the present application provides another embodiment, specifically as follows:

the fixing hole 114 is formed to be inclined downward from one end close to the seat back 2 to the other end, so that the locking member 4 is not easily withdrawn from the fixing hole 114 by gravity when the locking member 4 is inserted into the fixing hole 114. The end of the locking member 4 is fixedly connected with a strip-shaped flexible member, for example, a rope, which is pulled to drive the locking member 4 to exit from the fixing hole 114. Two ropes are arranged, and one ends of the two ropes far away from the locking piece 4 are mutually wound together or combined into one rope, so that the two locking pieces 4 can be conveniently and simultaneously pulled out of the fixing holes 114; when the locking member 4 is pulled out and the cord is loosened, the locking member 4 automatically falls into the fixing hole 114 by gravity to lock the seat back 2.

Based on the inventive concept of partially pressing the locking member 4 in the fixing hole 114 by the first elastic member 53 and pulling the locking member 4 out of the fixing hole 114 by the extending member 52, the present application also provides another embodiment, which is as follows:

referring to fig. 2 and 13, the elastic assembly includes a pull rope 55 and two compression springs 56, in this embodiment, the two compression springs 56 are provided, the compression springs 56 correspond to the locking members 4 one by one, the seat back 2 is integrally connected with the connecting plate 25 corresponding to the compression springs 56, one end of the compression spring 56 is fixedly connected with the connecting plate 25, the other end of the compression spring 56 is abutted against or fixedly connected with one end of the locking member 4 far away from the fixing hole 114, and the compression spring 56 has an elastic tendency of compressing the locking member 4 in the fixing hole 114.

Referring to fig. 2, 13 and 14, the pulling rope 55 includes two branch segments 551 and a merging segment 552 connected to the ends of the two branch segments 551, and one end of the branch segment 551 far from the merging segment 552 sequentially penetrates through the connecting plate 25 and the pressing spring 56 and is fixedly connected to the locking member 4. The merging section 552 penetrates through the chair back 2 and protrudes out of the back side wall of the chair back 2, a positioning block 553 is fixedly connected to one end, far away from the branched section 551, of the merging section 552, and the positioning block 553 is abutted to the back side wall of the chair back 2. During the process of unlocking the seat back 2, the pull rope 55 drives the two locking pieces 4 to exit from the fixing holes 114 by moving the positioning block 553, and at this time, the pressing spring 56 is further compressed; when positioning block 553 is released, compression spring 56 compresses locking element 4 partially within securing aperture 114.

Referring to fig. 14 and 15, the back side wall of the seat back 2 is integrally connected with two locking blocks 57, in this embodiment, the two locking blocks 57 are preferably arranged in a circular arc block shape, and the two locking blocks 57 are located at both sides of the positioning block 553. One side of the locking block 57 away from the seat back 2 is provided with a guide sliding surface 571 which is obliquely arranged, one end of the guide sliding surface 571 is smoothly connected with the back side wall of the seat back 2, and the guide sliding surface 571 gradually leaves away from the seat back 2 from one end connected with the back side wall of the seat back 2 to the other end.

Referring to fig. 2, 14 and 15, in the process of unlocking the seatback 2, the positioning block 553 is rotated, so that the positioning block 553 slides on the guide sliding surface 571, and thus the positioning block 553 gradually moves away from the seatback 2, and the positioning block 553 drives the pull rope 55 to move, and further drives the locking element 4 to exit from the fixing hole 114.

Referring to fig. 14 and 15, in order to make the positioning block 553 not easy to rotate, so that the locking element 4 is fixed in the unlocked state, a locking groove 58 for the positioning block 553 to rotatably insert is formed at a side of the locking element 4 away from the back side wall of the seatback 2, and the locking groove 58 is located at a side of the guide sliding surface 571 away from the back side wall of the seatback 2. A rotating column 5531 is integrally connected to one side of the positioning block 553 far away from the chair back 2, so as to conveniently rotate the positioning block 553.

Referring to fig. 16, in another embodiment, the locking member 4 is disposed in the side plate 11, the fixing holes 114 are opened in the bent portions 21 of the seat back 2, the number of the fixing holes 114 in each bent portion 21 is preferably three, and the three fixing holes 114 are located on an arc surface with the axis of the sliding protrusion 211 as the axis. Set up the slip hole 115 that supplies locking piece 4 to slide to wear to establish on the curb plate 11, two faces of slip hole 115 and curb plate 11 all link up, and the tip protrusion of locking piece 4 and curb plate 11 keep away from a lateral wall of back of the chair 2. When the locking piece 4 is in the locking state, the locking piece 4 is partially inserted into one of the locking holes, and the other part of the locking frame is positioned in the sliding hole 115, so that the rotation angle of the chair back 2 is locked. Wherein, locking piece 4 can be fixed through the joint mode with curb plate 11, also can pass through threaded connection, also can with 11 transition fit of curb plate to make locking piece 4 more stable in the position of locking state.

The implementation principle of the child seat in the embodiment of the application is as follows: when the child seat is installed, firstly, the sliding convex part 211 on the seat back 2 is slid and inserted into the sliding groove 111 on the side plate 11, then the axis of the sliding convex part 211 is used as a rotating shaft, the seat back 2 is rotated to adjust the angle, the locking part 4 penetrates through different fixing holes 114, and the positions of the seat back 2 at different rotating angles are locked. The locking member 4 is not easy to withdraw from the fixing hole 114 by providing the first elastic member 53 to press the locking member 4 partially in the fixing hole 114; by pulling the extension member 52, the locking member 4 is easily pulled out from the fixing hole 114.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A child seat, characterized by: the chair comprises a chair seat (1), a chair back (2) and a locking mechanism, wherein the chair back (2) is in sliding insertion connection with the chair seat (1), the locking mechanism comprises a locking piece (4) which is arranged on the chair back (2) or the chair seat (1) in a sliding manner, and the locking piece (4) has a locking state and an unlocking state;

when the locking piece (4) is arranged on the chair back (2) in a sliding manner, a fixing hole (114) for the sliding penetration of the locking piece (4) is formed in the chair seat (1), and when the locking piece (4) is arranged on the chair seat (1) in a sliding manner, a fixing hole (114) for the sliding penetration of the locking piece (4) is formed in the chair back (2);

when the locking piece (4) is in a locked state, the locking piece (4) is partially inserted into the fixing hole (114), and when the locking piece (4) is in an unlocked state, the locking piece (4) is withdrawn from the fixing hole (114);

the locking mechanism further comprises an elastic component connected with the locking piece (4), and the elastic component has an elastic trend of pressing the locking piece (4) in the fixing hole (114);

the elastic assembly comprises an extension piece (52) connected with the locking piece (4) and used for pulling the locking piece (4) out of the fixing hole (114), and a first elastic piece (53) arranged on the chair back (2) and used for pressing the locking piece (4) in the fixing hole (114).

2. A child seat according to claim 1, wherein: the chair seat (1) comprises a seat plate (12) and two side plates (11) which are respectively arranged on two sides of the seat plate (12), wherein a sliding groove (111) is formed in each side plate (11), the sliding groove (111) is communicated with one side wall, close to the chair back (2), of each side plate (11), a sliding convex part (211) which is embedded into the sliding groove (111) in a sliding mode is arranged on the chair back (2), and the sliding convex part (211) is rotatably connected with the side plates (11) at the bottom of the sliding groove (111);

locking piece (4) slide set up in on the back of the chair (2), fixed orifices (114) in a plurality of have been seted up on seat support (1), when locking piece (4) are in the locking state, locking piece (4) part inserts one of them in fixed orifices (114).

3. A child seat according to claim 1, wherein: the chair seat (1) comprises a seat plate (12) and two side plates (11) which are respectively arranged on two sides of the seat plate (12), the fixing holes (114) are formed in the side plates (11), at least two fixing holes (114) are formed in each side plate (11), the number of the locking pieces (4) is two, and the locking pieces (4) correspond to the side plates (11) one by one;

the extension piece (52) comprises two extension parts (521) and connecting parts (522) fixedly connected with the two extension parts (521), the extension parts (521) correspond to the locking pieces (4) one by one and are connected with each other, and the first elastic piece (53) presses the connecting parts (522) to enable the extension piece (52) to have a moving trend of pressing the locking pieces (4) in the fixing hole (114).

4. A child seat according to claim 1, wherein: locking piece (4) slide set up in on the back of the chair (2), set up on the back of the chair (2) and supply locking piece (4) slide the passageway of sliding (23) of wearing to establish.

5. A child seat according to claim 4, wherein: be provided with locating plate (523) on extension piece (52), spacing hole (5231) of sliding have been seted up on locating plate (523), the length direction of spacing hole (5231) of sliding with the flexible direction of first elastic component (53) is the same, be provided with reference column (28) on back of the chair (2), reference column (28) slide and wear to locate in spacing hole (5231) of sliding.

6. A child seat according to claim 3, wherein: a sliding groove (111) is formed in the side plate (11), the sliding groove (111) is communicated with one side wall, close to the chair back (2), of the side plate (11), a sliding convex part (211) which is slidably embedded into the sliding groove (111) is arranged on the chair back (2), and the sliding convex part (211) is rotatably connected with the side plate (11) at the bottom of the sliding groove (111);

the sliding convex part (211) is provided with a limiting part (2111), and the side plate (11) is provided with a limiting plate (112) which is used for being abutted against one side of the chair back (2) close to the limiting part (2111).

7. A child seat according to claim 6, wherein: a positioning groove (2112) is formed in the sliding convex part (211), a positioning part (14) is arranged on the side plate (11), and when the sliding convex part (211) moves to the bottom of the sliding groove (111), the positioning part (14) is embedded into the positioning groove (2112).

8. A child seat according to claim 7, wherein: and a second elastic piece connected with the positioning piece (14) is arranged on the side plate (11), and the second elastic piece has an elastic trend of pressing the positioning piece (14) in the positioning groove (2112).

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