Child dining chair with adjustable chair seat

Abstract

The utility model discloses a child dining chair with an adjustable chair seat, which comprises a dining chair frame, the dining chair frame is provided with a chair seat assembly, the chair seat assembly comprises a support framework and a seat plate, the support framework is arranged on the dining chair frame, and a horizontal adjusting mechanism is arranged between the seat plate and the support framework. The relative position of the seat plate and the supporting framework in the horizontal direction can be adjusted through the horizontal adjusting mechanism. The child seat has the following advantages and effects that a novel mechanical structure is utilized, the front-back position of the seat plate can be adjusted, and the sitting comfort of a child is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of children's products, in particular to a children's dining chair with an adjustable seat. Background Art

[0002] The existing Chinese patent with announcement number CN217065866U discloses a children's dining chair, including a dining chair frame, a seat plate slidably arranged on the dining chair frame, and a locking mechanism for locking the position of the seat plate and the dining chair frame, the locking mechanism including a locking piece slidably arranged on the seat plate and a locking groove arranged on the dining chair frame, when the locking mechanism is in a locked state, the locking piece is inserted in the locking groove, when the locking mechanism is in an unlocked state, the locking piece is disengaged from the locking groove, the locking piece has a matching portion and a blocking portion sequentially connected to the matching portion, the blocking portion protrudes from the matching portion, when the locking mechanism is in a locked state, the matching portion is located in the locking groove, the blocking portion passes through the locking groove and cooperates with the dining chair frame to prevent the locking piece from being disengaged from the locking groove.

[0003] However, the above-mentioned children's dining chair has the following disadvantages: the children's dining chair can only adjust the position of the seat plate in the height direction, but cannot adjust the front and rear position of the seat plate relative to the dining chair frame. Therefore, it is urgent to develop a children's dining chair that can adjust the front and rear position of the seat plate. Utility Model Content

[0004] The utility model aims to provide a children's dining chair with an adjustable seat, which has the effect of being able to adjust the front and rear positions of the seat plate and improving the riding comfort of children.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a children's dining chair with an adjustable seat, comprising a dining chair frame, the dining chair frame is provided with a seat assembly, the seat assembly includes a support structure and a seat plate, the support structure is arranged on the dining chair frame, a horizontal adjustment mechanism is provided between the seat plate and the support structure, and the relative position of the seat plate and the support structure in the horizontal direction can be adjusted by the horizontal adjustment mechanism.

[0006] By adopting the above technical solution, the operator can use the horizontal adjustment mechanism to adjust the front and rear position of the seat plate on the support structure, and can adapt the seat plate to the depth of the dining chair frame for children with different leg lengths, so that children of different ages or leg lengths have more contact area between the thighs and the seat plate, thereby improving the comfort of children sitting on the dining chair frame. It has the effect of adjusting the front and rear position of the seat plate and improving the riding comfort of children.

[0007] The utility model is further configured as follows: the horizontal adjustment mechanism includes a sliding structure and a locking structure arranged between the seat plate and the support structure, the seat plate can slide forward and backward in the horizontal direction relative to the support structure through the sliding structure, and when the seat plate is adjusted forward and backward to a predetermined position relative to the support structure, the seat plate can be locked and matched with the support structure through the locking structure.

[0008] By adopting the above technical solution, when the position of the seat plate needs to be adjusted, the locking structure is unlocked, and then the seat plate is moved forward and backward relative to the supporting structure. When the seat plate is translated to a predetermined length relative to the supporting structure, the locking structure is used to lock the seat plate and the supporting structure, so that the seat plate can be fixed to the supporting structure through the locking structure after the position is adjusted, thereby preventing the seat plate from accidentally sliding during use of the utility model.

[0009] The utility model is further configured as follows: the sliding structure includes a sliding portion and a sliding groove, the sliding portion is arranged on the supporting structure or the seat plate, the sliding groove is opened on the seat plate or the supporting structure, and the sliding portion cooperates with the sliding groove guide.

[0010] By adopting the above technical solution, the sliding direction of the seat plate when sliding parallel to the supporting structure is more consistent.

[0011] The utility model is further configured as follows: a plurality of support blocks are provided on the support structure, the sliding portion is integrally arranged on the side wall of the support block, a plurality of reinforcing ribs are provided on the bottom of the seat plate, the sliding groove is correspondingly arranged on the side wall of the reinforcing rib, and the support block cooperates with the sliding groove support guide through the sliding portion.

[0012] By adopting the above technical solution, the support block plays the role of slidingly connecting the seat plate and the support structure. In addition, the sliding part is arranged on the side wall of the support block, and the sliding groove is adapted to be opened on the side of the reinforcing rib. In this way, while the sliding part of the support block and the sliding groove of the reinforcing rib guide sliding cooperation, the sliding groove can also cooperate with the sliding part to support and prevent the seat plate from falling off, which is beneficial to improve the connection stability between the seat plate and the support structure.

[0013] The utility model is further configured as follows: the slide groove includes an open end and a closed end, the reinforcing rib is provided with a groove on one side of the open end of the slide groove, the groove is formed to form an elastic sheet on the reinforcing rib, the elastic sheet is extended toward one side of the slide groove to be provided with a stop portion, and the two ends of the sliding portion are respectively cooperated with the closed end and the stop portion.

[0014] By adopting the above technical scheme, the sliding part of the support block can be aligned with the open end of the slide groove of the seat plate and inserted during assembly. At this time, the stop part acts on the elastic sheet to produce elastic deformation and form a avoidance with the sliding part, which facilitates the sliding part of the support block to slide into the slide groove. When the sliding part slides over the open end to the inside of the slide groove, the elastic sheet relies on its own elastic force to drive the stop part to reset to the initial position. At this time, the stop part forms a stopping effect on the sliding part at the open end of the slide groove, so that the sliding part of the support block can only be guided and slid relatively between the closed end of the slide groove and the stop part, which can effectively prevent the seat plate from being separated from the support structure due to excessive adjustment stroke of the seat plate.

[0015] The utility model is further configured as follows: the locking structure includes a first locking pin, a first elastic member and a plurality of locking grooves, the plurality of locking grooves are spaced apart along the front-to-rear length direction of the seat plate, the first locking pin is slidably disposed on the supporting structure, and the first elastic member always has a movement tendency to drive the first locking pin to insert into the locking groove.

[0016] By adopting the above technical solution, when the locking structure needs to be unlocked, the first elastic member is elastically deformed by pulling the first locking pin, so that the first locking pin is disengaged from the corresponding locking groove in the seat plate to achieve unlocking. While maintaining the unlocked state, the seat plate can be freely slid in the front and rear directions to adjust the position. When the seat plate is adjusted to a suitable position relative to the supporting structure, the pulling force on the first locking pin is removed, the first elastic member releases the elastic force and pushes the first locking pin to press against another corresponding locking groove to achieve locking, thereby preventing the seat plate from sliding forward and backward relative to the supporting structure.

[0017] The utility model is further configured as follows: a plurality of reinforcing ribs are provided at the bottom of the seat plate, and the plurality of reinforcing ribs cooperate to form a plurality of locking grooves distributed at intervals in the front-rear length direction of the seat plate.

[0018] By adopting the above technical solution, the addition of reinforcing ribs can effectively improve the structural strength of the seat plate. In addition, a plurality of reinforcing ribs cooperate to form a locking groove, so that the utility model does not need to open a separate locking groove, so that the seat plate of the utility model has the effect of improving the structural strength and simplifying the processing steps of the locking groove.

[0019] The utility model is further configured as follows: the support structure is provided with a mounting hole, the first locking pin is inserted into the mounting hole, the first locking pin is provided with a step, the first elastic member is sleeved outside the first locking pin, and one end of the first elastic member elastically abuts against the step, the other end of the first elastic member abuts against the support structure, the other end of the first locking pin is fixedly connected with a pulling member, and the pulling member cooperates with a stopper of the support structure.

[0020] By adopting the above technical solution, the operator can use the pulling member to more conveniently pull the first locking pin to unlock the locking structure. At the same time, the stopping effect between the pulling member and the supporting structure can also effectively prevent the first locking pin from accidentally falling out of the mounting hole.

[0021] The utility model is further configured as follows: a height adjustment structure is provided between the support structure and the dining chair frame, and the support structure can be adjusted in height relative to the dining chair frame through the height adjustment structure.

[0022] By adopting the above technical solution and adding a height adjustment structure, it is beneficial to adjust the height of the seat assembly relative to the dining chair frame according to user needs.

[0023] The utility model is further configured as follows: the support structure includes a main support tube and a support seat, the support seat is slidably arranged on the dining chair frame, the height adjustment structure includes a second locking pin, a second elastic member and a plurality of locking holes, the second locking pin is inserted at both ends of the main support tube, and a plurality of locking holes are spaced apart on both sides of the dining chair frame along the height direction, and the second elastic member always has a movement tendency to drive the second locking pin to extend out of the main support tube and lock with the corresponding locking hole.

[0024] By adopting the above technical solution, the two sides of the support tube are slidably connected to the dining chair frame through the corresponding support seats, and the second elastic member is used to push the second locking pin to be locked and fixed in the corresponding locking hole on the dining chair frame, so that the seat assembly is locked relative to the dining chair frame at a predetermined height, thereby preventing the seat assembly from accidentally sliding relative to the dining chair frame during the child's riding. When the position height of the seat assembly needs to be adjusted, the second locking pin can be separated from the locking hole and unlocked by pulling the second elastic member. At this time, the second elastic member accumulates elastic potential energy, and the unlocked state can be maintained so that the seat assembly can be freely slid and adjusted in height relative to the dining chair frame. When the height of the seat assembly is adjusted to a suitable position, the pulling force on the second locking pin is released, and the second elastic member releases its own elastic potential energy to push the second locking pin to lock in the corresponding locking hole to achieve locking, thereby achieving locking and fixation between the seat assembly and the dining chair frame.

[0025] In summary, the utility model has the following beneficial effects:

[0026] A support structure is slidably arranged on a dining chair frame, and a seat plate is slidably arranged on the support structure via a horizontal adjustment mechanism. The horizontal adjustment mechanism includes a sliding structure and a locking structure arranged between the seat plate and the support structure. The seat plate can slide forward and backward in a horizontal direction relative to the support structure via the sliding structure, and when the seat plate is adjusted to a predetermined position relative to the support structure, the seat plate can be locked with the support structure via the locking structure, which has the effect of adjusting the front and rear position of the seat plate and improving the riding comfort of children. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the utility model.

[0028] Figure 2 It is a partial view of the utility model from another perspective.

[0029] Figure 3 It is a sectional view of the utility model.

[0030] Figure 4 This utility model Figure 3 A partial enlarged view of area A.

[0031] Figure 5 This utility model Figure 3 A partial enlarged view of area B in the middle.

[0032] Figure 6 It is a transverse sectional view of the utility model.

[0033] Figure 7 This utility model Figure 6 A partial enlarged view of the middle C area.

[0034] Figure 8 It is an exploded view of the seat plate and the supporting structure of the utility model.

[0035] In the figure: 1. dining chair frame; 11. guide rod; 2. support structure; 20. avoidance groove; 21. main support tube; 211. auxiliary support tube; 22. support seat; 221. sliding sleeve; 23. support block; 231. sliding part; 24. mounting seat; 241. mounting hole; 3. seat plate; 31. reinforcing rib; 311. groove; 312. slide groove; 3121. open end; 3122. closed end; 313. elastic sheet; 314. stopper; 41. first locking pin; 411. step; 412. pulling member; 42. first elastic member; 43. locking groove; 51. second locking pin; 511. toggle member; 52. second elastic member; 53. locking hole; 6. pedal. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the accompanying drawings.

[0037] A children's dining chair with an adjustable seat, such as Figure 1-3As shown, it includes a dining chair frame 1, which is provided with a seat assembly, and the seat assembly includes a supporting structure 2 and a seat plate 3. The supporting structure 2 is arranged on the dining chair frame 1, and a horizontal adjustment mechanism is provided between the seat plate 3 and the supporting structure 2, and the relative position of the seat plate 3 and the supporting structure 2 in the horizontal direction can be adjusted by the horizontal adjustment mechanism; the horizontal adjustment mechanism includes a sliding structure and a locking structure provided between the seat plate 3 and the supporting structure 2, and the seat plate 3 can slide forward and backward in the horizontal direction relative to the supporting structure 2 through the sliding structure, and when the seat plate 3 is adjusted to a predetermined position relative to the supporting structure 2, the seat plate 3 can be locked with the supporting structure 2 through the locking structure. When it is necessary to adjust the position of the seat plate 3, the locking structure is unlocked, and then the seat plate 3 is moved forward and backward relative to the supporting structure 2. When the seat plate 3 is translated to a predetermined length relative to the supporting structure 2, the locking structure is used to lock the seat plate 3 with the supporting structure 2, so that the seat plate 3 can be kept fixed with the supporting structure 2 through the locking structure after the position is adjusted, so as to prevent the seat plate 3 from accidentally sliding during use of the utility model.

[0038] like Figure 5-6 and Figure 8As shown, the sliding structure includes a sliding portion 231 and a sliding groove 312, the sliding portion 231 is arranged on the support structure 2, and the sliding groove 312 is opened on the seat plate 3, and the sliding portion 231 and the sliding groove 312 are guided and matched, so that the sliding direction of the seat plate 3 when sliding parallel to the support structure 2 is more consistent; a plurality of support blocks 23 are arranged on the support structure 2, the sliding portion 231 is integrally arranged on the side wall of the support block 23, and a plurality of reinforcing ribs 31 are arranged at the bottom of the seat plate 3, and the sliding groove 312 is correspondingly arranged on the side wall of the reinforcing rib 31, and the support block 23 is supported and guided by the sliding portion 231 and the sliding groove 312 The support block 23 plays the role of slidingly connecting the seat plate 3 and the support structure 2. In addition, the sliding portion 231 is arranged on the side wall of the support block 23, and the sliding groove 312 is adapted to be opened on the side of the reinforcing rib 31. In this way, the sliding portion 231 of the support block 23 and the sliding groove 312 of the reinforcing rib 31 guide and slide together. At the same time, the sliding groove 312 can also cooperate with the sliding portion 231 to support and prevent the seat plate 3 from falling off, which is beneficial to improving the connection stability between the seat plate 3 and the support structure 2; the sliding groove 312 includes an open end 3121 and a closed end 3122, and the reinforcing rib 31 is slidingly connected to the support block 23. A groove 311 is provided on one side of the open end 3121 of the groove 312. The groove 311 is provided to form an elastic sheet 313 on the reinforcing rib 31. The elastic sheet 313 is extended toward one side of the slide groove 312 to form a stopper 314. The two ends of the sliding portion 231 are respectively stopped by the closed end 3122 and the stopper 314. When assembling, the sliding portion 231 of the support block 23 can be aligned with the open end 3121 of the slide groove 312 of the seat plate 3 and inserted. At this time, the stopper 314 acts on the elastic sheet 313 to produce elastic deformation and form a avoidance with the sliding portion 231, which is convenient for the support block 23 The sliding portion 231 slides into the sliding groove 312. When the sliding portion 231 passes the open end 3121 and slides into the inside of the sliding groove 312, the elastic sheet 313 relies on its own elastic force to drive the stop portion 314 to return to the initial position. At this time, the stop portion 314 forms a stop effect on the sliding portion 231 at the open end 3121 of the sliding groove 312, so that the sliding portion 231 of the support block 23 can only be guided and slidable between the closed end 3122 of the sliding groove 312 and the stop portion 314, which can effectively prevent the seat plate 3 from being separated from the support structure 2 due to the excessive adjustment stroke of the seat plate 3.

[0039] like Figure 1-4 and Figure 8As shown, the locking structure includes a first locking pin 41, a first elastic member 42 and a plurality of locking grooves 43. The plurality of locking grooves 43 are arranged at intervals along the front and rear length direction of the seat plate 3. The first locking pin 41 is slidably arranged on the support frame 2. The first elastic member 42 always has a movement tendency to drive the first locking pin 41 to insert into the locking groove 43. When the locking structure needs to be unlocked, the first elastic member 42 is elastically deformed by pulling the first locking pin 41, so that the first locking pin 41 is disengaged from the corresponding locking groove 43 on the seat plate 3 to achieve unlocking. The unlocking state can be maintained and the locking pin 41 can be automatically unlocked. The position of the seat plate 3 is adjusted by sliding it in the front-to-back direction. When the seat plate 3 is adjusted to a suitable position relative to the support frame 2, the pulling force on the first locking pin 41 is removed, the first elastic member 42 releases the elastic force and pushes the first locking pin 41 to press against another corresponding locking groove 43 to achieve locking, thereby preventing the seat plate 3 from sliding forward and backward relative to the support frame 2. A plurality of reinforcing ribs 31 are provided at the bottom of the seat plate 3. The plurality of reinforcing ribs 31 cooperate with a plurality of locking grooves 43 distributed at intervals in the front-to-back length direction of the seat plate 3. The addition of the reinforcing ribs 31 can effectively improve The structural strength of the seat plate 3 is improved. In addition, a plurality of reinforcing ribs 31 cooperate to form a locking groove 43, so that the utility model does not need to open the locking groove 43 separately, so that the seat plate 3 of the utility model has the effect of improving the structural strength and simplifying the processing steps of the locking groove 43; the support structure 2 also includes a mounting seat 24 and an auxiliary support tube 211, the mounting hole 241 is opened on the mounting seat 24, the first locking pin 41 is penetrated in the mounting hole 241, the first locking pin 41 is provided with a step 411, and the first elastic member 42 is sleeved on the first locking pin 4 1, and one end of the first elastic member 42 elastically abuts against the step 411, and the other end of the first elastic member 42 elastically abuts against the mounting seat 24, and the other end of the first locking pin 41 is fixedly connected with a pulling member 412, and the pulling member 412 cooperates with the stopper of the mounting seat 24. The operator uses the pulling member 412 to more conveniently pull the first locking pin 41 to unlock the locking structure, and at the same time, the stopping effect between the pulling member 412 and the supporting structure 2 can also effectively prevent the first locking pin 41 from accidentally falling out of the mounting hole 241.

[0040] like Figure 5-8As shown, a height adjustment structure is provided between the support structure 2 and the dining chair frame 1, and the support structure 2 can be adjusted in height relative to the dining chair frame 1 through the height adjustment structure. The addition of the height adjustment structure is conducive to adjusting the height of the seat assembly relative to the dining chair frame 1 according to user needs; the support structure 2 includes a main support tube 21 and a support seat 22, and each support seat 22 has a sliding sleeve 221 integrally provided on the outer wall, and the dining chair frame 1 includes two parallel guide rods 11, and a plurality of lock holes 53 are arranged on the guide rods 11 at intervals. The support seat 22 is slidably sleeved on the guide rods 11 through the sliding sleeve 221 The second locking pin 51 is inserted at both ends of the main support tube 21, and the plurality of locking holes 53 are arranged at intervals on both sides of the dining chair frame 1 along the height direction. The second elastic member 52 always has a movement tendency to drive the second locking pin 51 to extend out of the main support tube 21 and lock with the corresponding locking hole 53. The two sides of the support tube are slidably connected to the dining chair frame 1 through the corresponding support seat 22, and the second elastic member 52 is used to push the second locking pin 51 to be locked and fixed on the dining chair frame 1. The seat assembly is locked relative to the dining chair frame 1 at a predetermined height in the corresponding locking hole 53 on the dining chair frame 1, thereby preventing the seat assembly from accidentally sliding relative to the dining chair frame 1 during the child's riding. When the height of the seat assembly needs to be adjusted, the second locking pin 51 can be pulled to separate from the locking hole 53 and unlock it. At this time, the second elastic member 52 accumulates elastic potential energy and remains unlocked, so that the seat assembly can be freely slidably adjusted in height relative to the dining chair frame 1. When the height of the seat assembly is adjusted to a suitable position, the second locking pin 51 is released. The second elastic member 52 releases its own elastic potential energy to push the second locking pin 51 to lock in the corresponding locking hole 53 to achieve locking, thereby achieving locking and fixation between the seat assembly and the dining chair frame 1; in addition, the support structure 2 is provided with an avoidance groove 20, and the second locking pin 51 is fixed with a toggle member 511, which extends out of the support structure 2 through the avoidance groove 20, and the toggle member 511 is guided and cooperated with the avoidance groove 20; in addition, a pedal 6 is also slidably provided on the dining chair frame 1, and the pedal 6 is also adjustably slidably provided on the guide rod 11 using the same structure as the height adjustment structure of the seat plate 3.

[0041] The basic working principle of the utility model is: the operator can use the horizontal adjustment mechanism to adjust the front and rear position of the seat plate 3 on the support structure 2, and can realize adaptive adjustment of the depth of the seat plate 3 relative to the dining chair frame 1 for children with different leg lengths, so that the contact area between the thighs and the seat plate 3 of children of different age groups or leg lengths is larger, thereby improving the comfort of children sitting on the dining chair frame 1, and having the effect of adjusting the front and rear position of the seat plate 3 and improving the riding comfort of children.

[0042] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A children's dining chair with an adjustable seat, comprising a dining chair frame (1), characterized in that: The dining chair frame (1) is provided with a seat assembly, and the seat assembly comprises a support structure (2) and a seat plate (3). The support structure (2) is arranged on the dining chair frame (1), and a horizontal adjustment mechanism is provided between the seat plate (3) and the support structure (2). The relative position of the seat plate (3) and the support structure (2) in the horizontal direction can be adjusted by the horizontal adjustment mechanism.

2. The children's dining chair with an adjustable seat according to claim 1, characterized in that: The horizontal adjustment mechanism comprises a sliding structure and a locking structure arranged between the seat plate (3) and the support structure (2); the seat plate (3) can slide forward and backward in the horizontal direction relative to the support structure (2) through the sliding structure; and when the seat plate (3) is adjusted forward and backward to a predetermined position relative to the support structure (2), the seat plate (3) can be locked with the support structure (2) through the locking structure.

3. The children's dining chair with an adjustable seat according to claim 2, characterized in that: The sliding structure comprises a sliding portion (231) and a sliding groove (312); the sliding portion (231) is arranged on the supporting structure (2) or the seat plate (3); the sliding groove (312) is correspondingly opened on the seat plate (3) or the supporting structure (2); and the sliding portion (231) is guided and matched with the sliding groove (312).

4. The children's dining chair with an adjustable seat according to claim 3, characterized in that: A plurality of support blocks (23) are provided on the support structure (2); the sliding portion (231) is integrally arranged on the side wall of the support block (23); a plurality of reinforcing ribs (31) are provided on the bottom of the seat plate (3); the sliding groove (312) is correspondingly arranged on the side wall of the reinforcing rib (31); and the support block (23) is supported and guided by the sliding portion (231) and the sliding groove (312).

5. The children's dining chair with an adjustable seat according to claim 4, characterized in that: The slide groove (312) includes an open end (3121) and a closed end (3122); the reinforcing rib (31) is provided with a groove (311) on one side of the open end (3121) of the slide groove (312); the groove (311) is provided to form an elastic sheet (313) on the reinforcing rib (31); the elastic sheet (313) is extended toward one side of the slide groove (312) and is provided with a stopper (314); the two ends of the sliding portion (231) are respectively engaged with the closed end (3122) and the stopper (314) for stopping.

6. The children's dining chair with an adjustable seat according to claim 2, characterized in that: The locking structure comprises a first locking pin (41), a first elastic member (42) and a plurality of locking grooves (43); the plurality of locking grooves (43) are arranged at intervals along the front-to-rear length direction of the seat plate (3); the first locking pin (41) is slidably arranged on the supporting structure (2); and the first elastic member (42) always has a movement tendency to drive the first locking pin (41) to insert into the locking groove (43).

7. The children's dining chair with an adjustable seat according to claim 6, characterized in that: The bottom of the seat plate (3) is provided with a plurality of reinforcing ribs (31), and the plurality of reinforcing ribs (31) cooperate to form a plurality of locking grooves (43) distributed at intervals in the front-rear length direction of the seat plate (3).

8. The children's dining chair with an adjustable seat according to claim 6, characterized in that: The support structure (2) is provided with a mounting hole (241), the first locking pin (41) is inserted into the mounting hole (241), the first locking pin (41) is provided with a step (411), a first elastic member (42) is sleeved outside the first locking pin (41), and one end of the first elastic member (42) elastically abuts against the step (411), the other end of the first elastic member (42) abuts against the support structure (2), the other end of the first locking pin (41) is fixedly connected with a pulling member (412), and the pulling member (412) cooperates with a stopper of the support structure (2).

9. The children's dining chair with an adjustable seat according to claim 1, characterized in that: A height adjustment structure is provided between the support structure (2) and the dining chair frame (1), and the support structure (2) can be adjusted in height relative to the dining chair frame (1) via the height adjustment structure.

10. The children's dining chair with an adjustable seat according to claim 9, characterized in that: The support structure (2) comprises a main support tube (21) and a support seat (22), wherein the support seat (22) is slidably arranged on the dining chair frame (1), and the height adjustment structure comprises a second locking pin (51), a second elastic member (52) and a plurality of locking holes (53), wherein the second locking pin (51) is inserted at both ends of the main support tube (21), and a plurality of locking holes (53) are arranged at intervals on both sides of the dining chair frame (1) along the height direction, and the second elastic member (52) always has a movement tendency to drive the second locking pin (51) to extend out of the main support tube (21) and lock with the corresponding locking hole (53).

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