Child growth chair

Abstract

The utility model discloses a child growth chair which comprises a supporting leg assembly, a chair seat and a backrest assembly, the supporting leg assembly comprises two front supporting leg pipes, and the upper ends of the two front supporting leg pipes are connected with armrests respectively; the chair seat is connected with the two front supporting leg pipes; the backrest assembly comprises a backrest plate and connecting parts connected to the two sides of the backrest plate, and the connecting parts on the two sides of the backrest plate are slidably connected with the two armrests correspondingly and used for adjusting the distance between the backrest plate and the armrests; a locking structure is arranged between the connecting part and the handrail, the locking structure has a locking state and an unlocking state, in the locking state, the connecting part is fixed relative to the handrail position, and in the unlocking state, the connecting part can slide relative to the handrail to adjust the position. According to the child growth chair, the backrest assembly is large in adjusting range, convenient to adjust and high in safety, and the body shape change requirements of children in different growth stages are met.

Description

Technical Field

[0001] This application relates to the technical field of children's chairs, and specifically relates to a children's growth chair. Background Art

[0002] A children's growth chair is a chair that can be adaptively adjusted according to the changes in the body shape of children during the growth process. In order to provide a relatively comfortable and safe dining environment for children, a dining plate is generally installed on this children's growth chair. Such a children's growth chair is also called a children's dining chair. For the children's dining chair with a dining plate in the related technology, in order to adapt to the changes in the body shape of children during the growth process, the dining plate is generally set to be adjustable, that is, the distance between the dining plate and the backrest can be adjusted. For example, in the dining chair disclosed in the patent application with the publication number CN208582086U, the dining plate is detachably connected to the armrests on both sides of the seat, and the dining plate is locked or unlocked through a dining plate adjustment mechanism. Just pressing the locking member of the adjustment mechanism can unlock the dining plate adjustment mechanism, and then the dining plate can be adjusted to different gear positions to be suitable for children of different ages. There are also some children's growth chairs that adjust the size of the seat by adjusting the position of the backrest. For example, in the growth chair disclosed in the patent application with the publication number CN220024632U, a backrest with an adjustable position is connected to the bracket behind the seat; by adjusting the position of the backrest to adapt to children of different body shapes or to adapt to the changes in the body shape of children at different growth stages.

[0003] The above-mentioned children's growth chairs in the related technology have the following deficiencies in actual use: For the growth chair that adjusts the position of the dining plate to adapt to the changes in the body shape of children at different growth stages, since the seat, the armrests on both sides of the seat, and the backrest behind the seat are integrally formed structures, the size of the space formed by the seat, the armrests, and the backrest for children to sit in always remains unchanged. Even if the dining plate is adjustable, the adjustment range of the dining plate is too small, so it still cannot meet the needs of children's body shape changes at different growth stages; moreover, if the position of the dining plate is set too far from the seat part, it will affect the load-bearing of the dining plate and reduce its safety performance. For the growth chair with an adjustable backrest position, because the adjustment range of the backrest is limited by the position of the bracket behind the seat, the adjustment range of the backrest is small and cannot meet the needs of children's body shape changes at different growth stages. Summary of the Utility Model

[0004] The technical problem to be solved by this application is to overcome the defects of the above-mentioned related technologies and provide a children's growth chair with a large adjustment range, convenient adjustment, and high safety of the backrest assembly, which can meet the needs of children's body shape changes at different growth stages.

[0005] The technical solution of this application is to provide a children's growth chair with the following structure: including

[0006] The leg assembly includes two front leg tubes, and armrests are respectively connected to the upper ends of the two front leg tubes;

[0007] The seat is arranged between the two front leg tubes and is respectively connected to the two front leg tubes;

[0008] The backrest assembly includes a backrest plate and connecting parts connected to both sides of the backrest plate. The connecting parts on both sides of the backrest plate are respectively slidably connected to the two armrests for adjusting the distance between the backrest plate and the armrests;

[0009] The locking structure is arranged between the connecting part and the armrest. The locking structure has a locked state and an unlocked state. In the locked state, the connecting part is fixed relative to the armrest. In the unlocked state, the connecting part can be slidably adjusted relative to the armrest.

[0010] In some embodiments, the interior of the armrest is hollow and the tail end is open. The connecting parts on both sides of the backrest plate are respectively movably inserted into the two armrests; the locking structure includes a long hole arranged on the armrest and extending along the length direction of the armrest and communicating with the interior of the armrest. At least two positioning holes communicating with the long hole are distributed on the long hole; a locking member that is slidably connected in the transverse direction and has a clearance fit in the long hole is connected to each connecting part, and a positioning block that can be inserted into or disengaged from the positioning hole is connected to the locking member.

[0011] In some embodiments, the locking structure further includes an elastic member. The elastic member is arranged in the connecting part and connected to the locking member. The elastic member is used to make the positioning block of the locking member always have a movement tendency of being inserted into the positioning hole in a matching manner; a pressing part that has a clearance fit in the long hole is connected to the locking member, and the free end of the pressing part is arranged outside the long hole.

[0012] In some embodiments, installation grooves extending along the length direction of the front leg tubes are respectively arranged on the two opposite inner side walls of the two front leg tubes; connecting seats are respectively connected to both sides of the seat; the connecting seats on both sides of the seat are respectively slidably connected in the two installation grooves for adjusting the height of the seat; a connecting member connected to the front leg tube is connected to the connecting seat for fixing the connecting seat on the front leg tube.

[0013] In some embodiments, the children's growth chair further includes a dinner plate assembly, and the dinner plate assembly is detachably connected to the two armrests.

[0014] In some embodiments, convex insertion blocks are respectively arranged on the inner side walls of the two armrests, and the upper ends of the insertion blocks form insertion ends; slots corresponding to the two insertion blocks for insertion are respectively arranged on both sides of the dinner plate assembly, and insertion openings are formed at the lower ends of the slots.

[0015] In some embodiments, an inwardly concave guiding groove extending along the insertion direction is provided on the inner side wall of the insertion block. The upper end of the guiding groove penetrates the fixed part end face of the insertion block, and the lower end of the guiding groove is provided with a locking groove communicating with the guiding groove in the transverse direction; a locking button is in clearance fit with the dinner plate assembly, and a locking block located in the insertion slot is connected to the locking button. A spring member connected to the locking button is connected inside the dinner plate assembly; when the insertion slot is inserted into the insertion block, the locking block is slidably fitted in the guiding groove, and when the locking block slides to align with the locking groove, it is snapped into the locking groove under the elastic force of the spring member.

[0016] In some embodiments, a middle blocking member extending downward is connected to the dinner plate assembly, and a plugging hole cooperating with the middle blocking member is provided on the seat. When the dinner plate assembly is connected to the armrest, the lower end of the middle blocking member is plugged into the plugging hole.

[0017] In some embodiments, a locking box is rotatably connected to the bottom of the seat, and a clamping block is provided on the inner wall of the locking box; a clamping hole mating with the clamping block is provided at the lower end of the middle blocking member. When the lower end of the middle blocking member is plugged into the plugging hole, the clamping hole is located inside the locking box, and by rotating the locking box towards the middle blocking member, the clamping block can be snapped into the clamping hole.

[0018] In some embodiments, a pedal is provided below the seat, and mounting seats are respectively connected to both ends of the pedal; the mounting seats at both ends of the pedal are respectively slidably connected in the two mounting slots for adjusting the height of the pedal; a fastener connecting the mounting seat to the front leg tube is connected to the mounting seat for fixing the mounting seat on the front leg tube.

[0019] In summary, compared with the related art, a children's growth chair of the present application has the following advantages: The connecting parts on both sides of the backrest assembly of the children's growth chair are respectively slidably connected to the two armrests, and a locking structure is provided between the connecting part and the armrest. In the locked state of the locking structure, the connecting part is fixed relative to the armrest, and in the unlocked state, the connecting part can be slidably adjusted relative to the armrest. Therefore, when adjusting the position of the backrest assembly, the locking structure is in the unlocked state. At this time, the position of the backrest assembly can be adjusted, that is, the distance between the backrest plate and the armrest or the seat can be adjusted, so that the seating space of the seat can be adjusted to meet the needs of children's body shape changes at different growth stages; after the adjustment is completed, the locking structure can be used to lock the connecting part of the backrest assembly, which is simple and convenient to operate. Moreover, the position adjustment range of the backrest assembly is not limited by the seat, so the position adjustment range of the backrest assembly is large and the safety is high. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a children's growth chair according to some embodiments of the present application.

[0021] Figure 2 It is a schematic rear view structural diagram of a children's growth chair according to some embodiments of the present application.

[0022] Figure 3 It is a schematic bottom view structural diagram of a children's growth chair according to some embodiments of the present application.

[0023] Figure 4 It is a schematic structural diagram of a backrest assembly of a children's growth chair according to some embodiments of the present application.

[0024] Figure 5 It is a schematic bottom view structural diagram of a backrest assembly of a children's growth chair according to some embodiments of the present application.

[0025] Figure 6 It is a schematic assembled structural diagram of a backrest assembly of a children's growth chair according to some embodiments of the present application.

[0026] Figure 7 It is a schematic cross-sectional view of a locking structure of a backrest assembly of a children's growth chair according to some embodiments of the present application.

[0027] Figure 8 It is an installation schematic diagram of a dinner plate assembly of a children's growth chair according to some embodiments of the present application.

[0028] Figure 9 It is a schematic structural diagram of a dinner plate assembly of a children's growth chair according to some embodiments of the present application.

[0029] Figure 10 It is a schematic partial cross-sectional view of a dinner plate assembly of a children's growth chair according to some embodiments of the present application.

[0030] Figure 11 It is a connection schematic diagram between a dinner plate assembly and a seat of a children's growth chair according to some embodiments of the present application.

[0031] Figure 12 It is a connection schematic diagram between a dinner plate assembly and a seat of a children's growth chair at another angle according to some embodiments of the present application.

[0032] Explanation of reference numerals:

[0033] 1. Leg assembly, 100. Front leg tube, 101. Rear leg tube, 102. Connecting plate, 103. Installation groove, 2. Armrest, 200. Insert block, 201. Introduction groove, 202. Locking groove, 203. Long hole, 204. Positioning hole, 3. Backrest assembly, 300. Backrest plate, 301. Connecting part, 302. Locking part, 303. Positioning block, 304. Pressing part, 305. Elastic part, 4. Seat, 400. Connecting seat, 401. Insertion hole, 402. Locking box, 403. Clamping block, 5. Pedal, 500. Mounting seat, 6. Dining plate assembly, 600. Intermediate blocking part, 601. Card hole, 602. Base, 603. Slot, 604. Locking button, 605. Locking block, 606. Guide hole, 607. Spring part. Detailed implementation manners

[0034] First of all, those skilled in the art should understand that these implementation manners are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments according to needs to adapt to specific application scenarios.

[0035] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0036] In the embodiments of the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0037] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] See Figures 1 to 10As shown in the figure; an embodiment of the present application discloses a children's growth chair, the structure of which includes a leg assembly 1, a seat 4 and a backrest assembly 3. The leg assembly 1 includes two front leg tubes 100 and two rear leg tubes 101. In this embodiment, a connecting plate 102 protruding backward is connected to each of the two front leg tubes 100. The upper ends of the two rear leg tubes 101 are respectively rotatably connected to the connecting plates 102 on the two front leg tubes 100. When in use, the two rear leg tubes 101 can be rotated outward to expand. When storing or packing and transporting, the two rear leg tubes 101 can be rotated inward to fold, so as to reduce the packing volume and facilitate transportation.

[0039] In other embodiments, it is also possible not to provide the two rear leg tubes 101, and to bend the lower parts of the two front leg tubes 100 backward to form a base for supporting the leg assembly 1; or to connect the two rear leg tubes 101 to the seat 4, etc.

[0040] In this embodiment, armrests 2 are respectively connected to the upper ends of the two front leg tubes 100. As Figure 1 、 Figure 2 and Figure 3 shown, the armrest 2 is in a T shape. The lower end of the armrest 2 is inserted and fixed to the upper end of the front leg tube 100. The armrest 2 is an armrest tube with a hollow interior and an open end. The seat 4 is arranged between the two front leg tubes 100 and is respectively connected to the two front leg tubes 100; the backrest assembly 3 includes a backrest plate 300 and connecting parts 301 connected to both sides of the backrest plate 300. The connecting parts 301 on both sides of the backrest plate 300 are respectively slidably connected to the two armrests 2 for adjusting the distance between the backrest plate 300 and the armrests 2; specifically in this embodiment, the connecting parts 301 on both sides of the backrest plate 300 are columnar structures and are both arranged on the side of the backrest plate 300 close to the seat 4. The connecting parts 301 on both sides of the backrest plate 300 are respectively movably inserted into the two armrests 2 and can move or slide back and forth along the axial direction of the armrests 2 relative to the armrests 2.

[0041] Further, in this embodiment, in order to improve the connection stability of the backrest assembly 3 and facilitate the fixing of the backrest assembly 3 after position adjustment, a locking structure is provided between the connecting portion 301 of the backrest assembly 3 and the armrest 2. The locking structure has a locked state and an unlocked state. In the locked state, the connecting portion 301 is fixed relative to the armrest 2, and the connecting portion 301 is locked on the armrest 2. In the unlocked state, the connecting portion 301 can be slidably adjusted relative to the armrest 2. Therefore, in this embodiment, when adjusting the position of the backrest assembly 3 of the children's growth chair, the locking structure is in the unlocked state. At this time, the position of the backrest assembly 3 can be adjusted, that is, the distance between the backrest plate 300 and the armrest 2 or the seat 4 can be adjusted, so that the seating space of the seat 4 can be adjusted to meet the body size change requirements of children at different growth stages; after the adjustment is completed, the connecting portion 301 of the backrest assembly 3 can be locked by locking the locking structure. The operation is simple and convenient. Moreover, the position adjustment range of the backrest assembly 3 is not limited by the seat 4. Therefore, the position adjustment range of the backrest assembly 3 is large and the safety is high.

[0042] In this embodiment, as Figure 4 、 Figure 5 、 Figure 6 and Figure 7 shown, the locking structure includes an elongated hole 203 provided on the armrest 2 and extending along the length direction of the armrest 2 and communicating with the inside of the armrest 2. At least two positioning holes 204 communicating with the elongated hole 203 are distributed on the elongated hole 203; each connecting portion 301 is slidably connected transversely with a locking member 302 that is clearance-fitted in the elongated hole 203, and a positioning block 303 that can be inserted into or disengaged from the positioning hole 204 is connected to the locking member 302. When adjusting the position of the backrest plate 300 of the backrest assembly 3 relative to the armrest 2 or the seat 4, the locking member 302 is driven to disengage the positioning block 303 on the locking member 302 from the positioning hole 204 on the elongated hole 203. At this time, the position of the connecting portion 301 of the backrest assembly 3 on the armrest 2 can be moved. When the position adjustment of the backrest assembly 3 is completed, the positioning block 303 on the locking member 302 can be inserted into the positioning hole 204 on the elongated hole 203 to limit or lock the connecting portion 301 of the backrest assembly 3 on the armrest 2.

[0043] Exemplarily, as Figure 5 、 Figure 6 and Figure 7As shown, a rectangular elongated hole 203 is formed in the armrest 2. The positioning holes 204 are provided in two groups. Each group of positioning holes 204 includes two positioning holes 204 respectively located on both sides of the elongated hole 203 and communicating with the elongated hole 203. The locking member 302 is in clearance fit with the elongated hole 203. Two positioning blocks 303 respectively mating and inserted with a group of positioning holes 204 are provided on both sides of the locking member 302. Pressing the locking member 302 inward can cause the positioning blocks 303 to move inward accordingly and disengage from the positioning holes 204. In this example, since the positioning holes 204 are in two groups, the backrest assembly 3 has a two-stage adjustment function. In other embodiments, the positioning holes 204 can also be in three groups, four groups, etc., so that the backrest assembly 3 can meet the adjustment of multiple different gear distances, thereby meeting the requirements of the seat 4 space for the body shape changes of children at different growth stages.

[0044] Further in this embodiment, in order to make the locking structure more convenient to operate and make the locking between the backrest assembly 3 and the armrest 2 more stable and firm; as Figure 6 and Figure 7 shown, the locking structure further includes an elastic member 305. The elastic member 305 is made of steel. The elastic member 305 is arranged in the connecting portion 301 and connected to the locking member 302. The elastic member 305 is used to make the positioning blocks 303 of the locking member 302 always have a movement tendency of mating and inserting with the positioning holes 204. A pressing portion 304 in clearance fit with the elongated hole 203 is connected to the locking member 302, and the free end of the pressing portion 304 is arranged outside the elongated hole 203. When unlocking, inward pressures are respectively applied to the pressing portions 304 at the bottom of the armrest 2 with both hands, so that the positioning blocks 303 of the locking member 302 simultaneously disengage from the positioning holes 204 on the elongated hole 203. At this time, the position of the connecting portion 301 can be adjusted or the distance between the backrest plate 300 and the seat 4 or the armrest 2 can be adjusted. After the position of the backrest assembly 3 is adjusted, release the pressing portion 304, and the locking member 302 automatically resets under the elastic force of the elastic member 305, and the positioning blocks 303 on the locking member 302 are inserted into the positioning holes 204 on the elongated hole 203, realizing the locking of the connecting portion 301 of the backrest assembly 3.

[0045] In some embodiments, in order to make the height of the seat 4 adjustable to meet the requirements of the seat 4 height for the body shape changes of children at different growth stages, as Figure 1 and Figure 2As shown, mounting grooves 103 extending along the length direction of the front leg tubes 100 are respectively provided on two opposite inner side walls of the two front leg tubes 100, and connecting seats 400 are respectively connected to both sides of the seat 4; the connecting seats 400 on both sides of the seat 4 are respectively slidably connected in the two mounting grooves 103 for adjusting the height of the seat 4; a connecting member connected to the front leg tube 100 is connected to the connecting seat 400 for fixing the connecting seat 400 on the front leg tube 100. It is not difficult to understand that in the mounting groove 103 of the front leg tube 100, a plurality of adjusting holes are provided along the length direction of the mounting groove 103. The connecting seats 400 on both sides of the seat 4 are slidably fitted in the mounting groove 103, and a connecting member, such as a locking screw, is connected to the connecting seat 400. The connecting member can be connected to the adjusting holes in the mounting groove 103 to fix the connecting seats 400 on both sides of the seat 4 on the front leg tube 100; similarly, when the child's height increases, the connecting member connecting the connecting seat 400 can be loosened, and the seat 4 can be slid downward along the length direction of the mounting groove 103 to a lower position, and then the connecting member is fixed again on the lower adjusting holes in the mounting groove 103. The operation is simple and convenient.

[0046] In some embodiments, the children's growth chair further includes a dinner plate assembly 6, such as Figure 1 , Figure 2 , Figure 8 , Figure 9 and Figure 10 As shown, the dinner plate assembly 6 is detachably connected to the two armrests 2. When the child is dining, the dinner plate assembly 6 can be installed on the armrests 2. When not using the dinner plate assembly 6 for dining, the dinner plate assembly 6 can be detached, or when the child grows into an older child, the dinner plate assembly 6 can be completely detached to expand the seating space of the seat 4.

[0047] Specifically in this embodiment, as Figure 8 and Figure 9 shown, outwardly convex insertion blocks 200 are provided on the inner side walls of the two armrests 2, and the upper ends of the insertion blocks 200 form insertion ends; bases 602 are respectively connected to both sides of the dinner plate assembly 6, and insertion slots 603 corresponding to the two insertion blocks 200 are respectively provided on the two bases 602, and insertion openings are formed at the lower ends of the insertion slots 603. When connecting the dinner plate assembly 6 to the armrests 2, first align the insertion openings at the lower ends of the insertion slots 603 with the insertion ends at the upper ends of the insertion blocks 200, and insert the dinner plate assembly 6 from top to bottom, so that the insertion slots 603 on both sides of the dinner plate assembly 6 are completely inserted on the insertion blocks 200, and the connection between the dinner plate assembly 6 and the armrests 2 can be completed.

[0048] Further, in the present embodiment, an inwardly concave and insertion-direction extending guiding groove 201 is provided on the inner side wall of the insertion block 200. The upper end of the guiding groove 201 penetrates the fixed part end face of the insertion block 200, and the lower end of the guiding groove 201 is provided with a locking groove 202 communicating with the guiding groove 201 in the transverse direction; a locking button 604 is in clearance fit with the dinner plate assembly 6, and a locking block 605 located in the slot 603 is connected to the locking button 604; specifically, a guiding hole 606 is provided in the transverse direction on the inner bottom wall of the slot 603, and the locking block 605 is in clearance fit in the guiding hole 606. When the locking button 604 is pressed, the locking block 605 slides in the guiding hole 606; a spring member 607 connected to the locking button 604 is connected inside the dinner plate assembly 6; when the slot 603 is inserted into the insertion block 200, the locking block 605 is slidably fitted in the guiding groove 201, and when the locking block 605 slides to align with the locking groove 202, it snaps into the locking groove 202 under the elastic force of the spring member 607. This setting realizes the quick installation of the dinner plate assembly 6 and the armrest 2.

[0049] It is not difficult to understand that under the elastic force of the spring member 607, the locking block 605 of the locking button 604 is in a position deviating from the guiding groove 201. In order to facilitate the smooth insertion of the locking block 605 into the guiding groove 201, a first inclined surface is provided at the opening of the guiding groove 201 and a second inclined surface mating with the first inclined surface is provided on one side of the locking block 605. When the second inclined surface of the locking block 605 fits with the first inclined surface at the opening of the guiding groove 201, the spring member 607 can be compressed under the action of pressure and the locking block 605 can smoothly slide into the guiding groove 201; when the locking block 605 slides to align with the locking groove 202, the locking block 605 snaps into the locking groove 202 under the elastic force of the spring member 607 to complete the locking of the dinner plate assembly 6.

[0050] In some embodiments, as Figure 1 、 Figure 8 and Figure 9 shown, a middle blocking member 600 extending downward is connected to the dinner plate assembly 6. Spaces for the legs of a child to extend are formed on both sides of the middle blocking member 600, and the middle blocking member 600 functions to block the child and prevent the child from slipping from below the dinner plate assembly 6. Specifically, in the present embodiment, a plugging hole 401 mating with the middle blocking member 600 is provided on the seat 4 of the chair. When the dinner plate assembly 6 is connected to the armrest 2, the lower end of the middle blocking member 600 is plugged into the plugging hole 401. This setting enables the lower end of the middle blocking member 600 to be better fixed, making the connection of the dinner plate assembly 6 more firm and stable.

[0051] Specifically, in the present embodiment, as Figure 11 and Figure 12As shown, a locking box 402 is rotatably connected to the bottom of the seat 4. Specifically, one end of the locking box 402 is rotatably connected to the bottom of the seat 4 through a connecting shaft; a clamping block 403 is provided on the inner wall of the locking box 402; a clamping hole 601 that is matingly clamped with the clamping block 403 is provided at the lower end of the intermediate stopper 600. When the lower end of the intermediate stopper 600 is inserted into the insertion hole 401, the clamping hole 601 is located inside the locking box 402, and by rotating the locking box 402 in the direction close to the intermediate stopper 600, the clamping block 403 can be clamped in the clamping hole 601. After the lower end of the intermediate stopper 600 of the dinner plate assembly 6 is inserted into the insertion hole 401 of the seat 4, the clamping hole 601 at the lower end of the intermediate stopper 600 is exactly located inside the locking box 402. At this time, by rotating the locking box 402, the clamping block 403 inside the locking box 402 can be clamped in the clamping hole 601 at the lower end of the intermediate stopper 600 to lock the lower end of the intermediate stopper 600.

[0052] In some embodiments, as Figure 1 and Figure 2 shown, a pedal 5 is provided below the seat 4. Both ends of the pedal 5 are respectively connected with mounting seats 500; the mounting seats 500 at both ends of the pedal 5 are respectively slidably connected in two mounting grooves 103 for adjusting the height of the pedal 5; a fastener connected to the front leg tube 100 is connected to the mounting seat 500 for fixing the mounting seat 500 on the front leg tube 100. Such a setting enables the height of the pedal 5 to be adjustable to meet the requirements of the changing body shape of children at different growth stages for the height of the pedal 5. The height adjustment method of the pedal 5 is the same as the height adjustment method of the seat 4 in the above embodiment. Therefore, when the pedal 5 needs to be adjusted, the fastener connecting the mounting seat 500 can be loosened, and the pedal 5 can be slid downward along the length direction of the mounting groove 103 to a lower position, and then the fastener is fixed again on the lower adjustment hole in the mounting groove 103. The operation is simple and convenient.

[0053] It is not difficult to understand that in order to improve the structural stability and safety of the children's growth chair, a metal skeleton is connected to the bottom of the pedal 5 and the bottom of the seat 4, and a pull rod is connected between the two rear leg tubes 101.

[0054] In the description of the embodiments of the present application, it should be noted that in the description of the present application, the terms "inner", "outer", etc. indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present application.

[0055] In the description of the present application, the description with reference to terms such as "one embodiment", "some embodiments", "in this embodiment", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0056] As described above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A children's growth chair, characterized in that: including a leg assembly including two front leg tubes, and armrests are respectively connected to upper ends of the two front leg tubes; a seat disposed between the two front leg tubes and respectively connected to the two front leg tubes; a backrest assembly including a backrest plate and connecting portions connected to two sides of the backrest plate, and the connecting portions on two sides of the backrest plate are respectively slidably connected to the two armrests for adjusting a distance between the backrest plate and the armrests; a locking structure disposed between the connecting portion and the armrest, the locking structure having a locked state and an unlocked state, in the locked state, the connecting portion is fixed in position relative to the armrest, and in the unlocked state, the connecting portion is slidably adjustable in position relative to the armrest.

2. The children's growth chair according to claim 1, characterized in that: The armrests are hollow inside and open at the tail ends, and the connecting portions on two sides of the backrest plate are respectively movably inserted into the two armrests; the locking structure includes elongated holes disposed on the armrests and extending along a length direction of the armrests and communicating with an interior of the armrests, and at least two positioning holes communicating with the elongated holes are distributed on the elongated holes; a locking member that is slidably connected in a transverse direction of each connecting portion and is in clearance fit in the elongated holes is provided, and a positioning block that can be inserted into or disengaged from the positioning holes is connected to the locking member.

3. The children's growth chair according to claim 2, wherein: The locking structure further includes an elastic member disposed in the connecting portion and connected to the locking member, and the elastic member is configured to always make the positioning block of the locking member have a movement tendency of being inserted into the positioning holes in a mating manner; a pressing portion that is in clearance fit in the elongated holes is connected to the locking member, and a free end of the pressing portion is disposed outside the elongated holes.

4. The children's growth chair according to claim 1, characterized in that: Installation grooves extending along a length direction of the front leg tubes are respectively provided on two opposite inner side walls of the two front leg tubes; connecting seats are respectively connected to two sides of the seat; the connecting seats on two sides of the seat are respectively slidably connected in the two installation grooves for adjusting a height of the seat; a connecting member connected to the front leg tubes is connected to the connecting seat for fixing the connecting seat on the front leg tubes.

5. The children's growth chair according to claim 1, characterized in that: The children's growth chair further includes a dinner plate assembly detachably connected to the two armrests.

6. The children's growth chair according to claim 5, characterized in that: Protruding inserts are provided on inner side walls of the two armrests, and insertion ends are formed at upper ends of the inserts; slots corresponding to the two inserts for insertion are respectively provided on two sides of the dinner plate assembly, and insertion openings are formed at lower ends of the slots.

7. The children's growth chair according to claim 6, characterized in that: An inwardly concave guiding groove extending along a plugging direction is provided on an inner side wall of the insert, an upper end of the guiding groove penetrates a fixed portion end face of the insert, and a locking groove communicating with the guiding groove is provided in a transverse direction at a lower end of the guiding groove; a locking button that is in clearance fit with the dinner plate assembly is provided, a locking block located in the slot is connected to the locking button, and a spring member connected to the locking button is connected inside the dinner plate assembly; when the slot is plugged with the insert, the locking block is slidably fitted in the guiding groove, and when the locking block slides to be aligned with the locking groove, the locking block is snapped into the locking groove under the elastic force of the spring member.

8. The children's growth chair according to claim 5, characterized in that: A middle stopper extending downward is connected to the dinner plate assembly, and a plug hole that cooperates with the middle stopper is provided on the seat. When the dinner plate assembly is connected to the armrest, the lower end of the middle stopper is inserted into the plug hole.

9. The children's growth chair according to claim 8, characterized in that: A locking box is rotatably connected to the bottom of the seat, and a clamping block is provided on the inner wall of the locking box; a clamping hole that is engaged with the clamping block is provided at the lower end of the middle stopper. When the lower end of the middle stopper is inserted into the plug hole, the clamping hole is located inside the locking box, and by rotating the locking box in the direction close to the middle stopper, the clamping block can be engaged in the clamping hole.

10. The children's growth chair according to claim 4, characterized in that: A pedal is provided below the seat, and mounting seats are respectively connected to both ends of the pedal; the mounting seats at both ends of the pedal are respectively slidably connected in the two mounting grooves for adjusting the height of the pedal. A fastener connected to the front leg tube is connected to the mounting seat for fixing the mounting seat on the front leg tube.

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