Child dining chair

Abstract

The invention discloses a child dining chair. The child dining chair comprises a foot stool capable of being unfolded and folded, a seat capable of being unfolded and folded and a sliding seat arranged on the foot stool in a sliding mode in the longitudinal direction of the foot stool. The seat is assembled on the sliding seat and selectively conducts unfolding and folding operation relative to the sliding seat, the sliding seat drives the foot stool to be folded in the process of sliding upwards along the foot stool, the foot stool is driven to be folded through the sliding seat, and therefore the operation convenience of the child dining chair is improved.

Description

[0001] This application is a divisional application of the invention patent application whose applicant is Mingmen Switzerland AG, with an application date of June 24, 2019, application number 201910553079.3, and invention name “Children’s dining chair”. Technical Field

[0002] The invention relates to the field of infant products, and in particular to a children's dining chair. Background Art

[0003] With the continuous development of economy and the continuous progress of science and technology, people's lives are provided with extremely rich material consumer goods, and children's dining chairs are one of the many material consumer goods.

[0004] As we all know, the use of children's dining chairs not only facilitates users to feed children, but also ensures the safety of children while dining. Therefore, children's dining chairs are increasingly popular among consumers.

[0005] In order to facilitate the storage or carrying of the children's dining chair, existing manufacturers have made the children's dining chair into a structure that can be unfolded and retracted.

[0006] However, for the existing foldable children's dining chair, since the foot frame cannot be driven by the seat to be folded, the folding operation of the existing foldable children's dining chair is relatively complicated, which increases the burden of the user accordingly.

[0007] Therefore, there is an urgent need for a children's dining chair that is easy and convenient to fold and operate to reduce the burden on the user to overcome the above problems. Summary of the invention

[0008] The object of the present invention is to provide a children's dining chair which is easy and convenient to fold and fold so as to reduce the burden on the user.

[0009] To achieve the above purpose, the children's dining chair of the present invention comprises a retractable foot frame, a retractable seat and a slide seat slidably arranged on the foot frame along the longitudinal direction of the foot frame. The seat is assembled on the slide seat and selectively retracts relative to the slide seat, and the slide seat drives the foot frame to fold while sliding upward along the foot frame.

[0010] Preferably, the children's dining chair of the present invention also includes a blocking member movably mounted on the sliding seat and having at least a blocking position and an avoidance position relative to the sliding seat. When the blocking member is in the blocking position, it blocks the foot frame to block the sliding seat from sliding upward. When the blocking member is in the avoidance position, it disengages from the foot frame to disengage from blocking the sliding seat from sliding upward. The seat has at least a folded position and an unfolded position relative to the sliding seat. When the seat is in the unfolded position, the blocking member is driven to switch from the avoidance position to the blocking position. When the seat is switched to the folded position, the driving of the blocking member is disengaged to allow the blocking member to selectively switch to the avoidance position.

[0011] Preferably, a spring sheet structure is fixed on the slide seat, the spring sheet structure is suspended on the slide seat, the blocking member is installed on the suspended end of the spring sheet structure, and the blocking member switches between the avoidance position and the blocking position through the bending deformation of the spring sheet structure.

[0012] Preferably, the blocking member is pivotally connected to the sliding seat, or the blocking member is slidably disposed on the sliding seat.

[0013] Preferably, the blocking member pivots or slides in left and right directions relative to the slide seat during switching between the blocking position and the avoidance position.

[0014] Preferably, the children's dining chair of the present invention further comprises a restoring member which has a tendency to drive the blocking member to switch from the blocking position to the avoiding position, and the restoring member drives the blocking member to switch to the avoiding position when the seat is switched to the folded position.

[0015] Preferably, the tripod includes a front foot, a rear foot, an extension and retraction joint connecting the front foot and the rear foot, and a locking structure arranged on the extension and retraction joint and selectively locking or releasing the extension and retraction joint. The slide is slidably arranged on the front foot and is provided with a driving structure. The driving structure drives the locking structure to release the lock when the slide slides upward along the front foot.

[0016] Preferably, the adduction and extension joints are respectively connected to the top of the front foot and the rear foot.

[0017] Preferably, the extension-retraction joint comprises a front foot fixing seat and a rear foot fixing seat, the front foot fixing seat is pivotally connected to the rear foot fixing seat via a pivot, the top of the front foot is assembled with the front foot fixing seat, and the top of the rear foot is assembled with the rear foot fixing seat.

[0018] Preferably, the locking structure includes a locking member, a releasing member linked to the locking member, and a matching locking portion locked to the locking member, the matching locking portion being arranged at one of the front foot fixing seat and the rear foot fixing seat, the locking member being movably arranged at the other of the front foot fixing seat and the rear foot fixing seat, the locking member locking the extension and retraction joint when locked with the matching locking portion, and the driving structure driving the releasing member to link the locking member and the matching locking portion to release the lock during the upward sliding process of the sliding seat.

[0019] Preferably, the locking member is located between the front foot fixing seat and the rear foot fixing seat along the axial direction of the pivot, and the locking member is slidably arranged.

[0020] Preferably, the locking structure includes a locking member located between the front foot fixing seat and the rear foot fixing seat along the axial direction of the pivot, a releasing member linked to the locking member, a front locking portion provided on the front foot fixing seat, and a rear locking portion provided on the rear foot fixing seat. The locking member is mounted on the pivot and slides along the axial direction of the pivot. The locking member locks the expansion and contraction joint when it is locked with the front locking portion and the rear locking portion at the same time. The driving structure drives the releasing member to drive the locking member to disengage from the locking with the rear locking portion and / or the front locking portion during the upward sliding of the sliding seat to release the expansion and contraction joint.

[0021] Preferably, a receiving cavity for receiving the release member and a guide groove connected to the receiving cavity are formed at the end of the front foot fixing seat opposite to the rear foot fixing seat. The guide groove extends along the radial direction of the pivot and is aligned with the driving structure. The release member is located in the receiving cavity, and the release member is also slidably inserted into the front foot fixing seat along the axial direction of the pivot.

[0022] Preferably, the driving structure is a rib, a rod, a block or a sheet.

[0023] Preferably, the locking member is an external gear, and the front locking portion and the rear locking portion are each an internal gear.

[0024] Preferably, the chair comprises a seat plate, an armrest fixing seat and a folding linkage, and the folding linkage, the seat plate, the armrest fixing seat and the slide seat are assembled together to form a four-bar linkage mechanism for folding movement.

[0025] Preferably, the seat plate and the sliding seat are pivotally connected to form a first pivot point, the armrest fixing seat and the sliding seat are pivotally connected to form a second pivot point located above the first pivot point, the folding linkage member and the armrest fixing seat are pivotally connected to form a third pivot point located in front of the second pivot point, and the folding linkage member and the seat plate are pivotally connected to form a fourth pivot point located below the third pivot point.

[0026] Preferably, the first pivot point is located at the upper end of the seat plate, the second pivot point is located at the rear end of the armrest fixing seat, the third pivot point is located in the middle of the armrest fixing seat, and the fourth pivot point is located at the front end of the seat plate.

[0027] Preferably, the armrest fixing seat and the sliding seat are respectively located outside the left and right sides of the seat plate, the folding linkage is a U-shaped member with an opening facing upward, the left top of the U-shaped member is pivotally connected to the left armrest fixing seat, the right top of the U-shaped member is pivotally connected to the right armrest fixing seat, and the front end of the seat plate is placed in the U-shaped member and pivotally connected to the U-shaped member.

[0028] Preferably, one of the seat plate and the slide is provided with a snap-in guide groove, and the other of the seat plate and the slide is provided with a snap-in guide rail matching the snap-in guide groove, the snap-in guide rail is disengaged from the snap-in guide groove after the seat is folded, and the snap-in guide rail is snap-connected with the snap-in guide groove after the seat is unfolded.

[0029] Preferably, the clamping guide rail or the clamping guide groove is located in the middle of the side wall of the seat plate facing the slide seat.

[0030] Preferably, the chair further comprises a backrest, and a side wall of the backrest is pivotally connected to the sliding seat.

[0031] Preferably, one of the seat plate and the slide seat is provided with a clamping piece and a flexible traction piece connected to the clamping piece, and the other of the seat plate and the slide seat is provided with a matching clamping portion cooperating with the clamping piece, and the clamping piece is slidably arranged along the left and right directions of the children's dining chair.

[0032] Preferably, the engaging parts are located on the seat plate and are arranged on the left and the right, one end of the flexible traction part is connected to the engaging part on the left, and the other end of the flexible traction part is connected to the engaging part on the right, and the middle part of the flexible traction part is also exposed above the seat plate.

[0033] Preferably, the children's dining chair of the present invention also includes a pushing piece slidably provided on the backrest along the up-down direction of the backrest and a "door"-shaped insertion piece that is selectively inserted into or moved away from the sliding seat. The insertion piece is slidably provided on the backrest along the up-down direction of the backrest, the upper end of the pushing piece is pushed and matched with the insertion piece, and the lower end of the pushing piece is linked to the engaging piece. The pushing piece pushes the insertion piece away from the sliding seat during the process of the engaging piece being disengaged from and engaged with the matching card portion.

[0034] Preferably, the engaging member has a first inclined surface inclined relative to the sliding direction of the engaging member, and the pushing member has a second inclined surface matching the first inclined surface. The engaging member drives the pushing member to slide upward through the matching of the first inclined surface and the second inclined surface.

[0035] Preferably, the card inserting member is located on the back side of the backrest, and the pushing member is located on the front side of the backrest.

[0036] Preferably, the plug-in member is an iron wire or a steel wire.

[0037] Preferably, the backrest is also provided with an operating button connected to the top of the card inserting member, and the operating button drives the card inserting member to be inserted into or removed from the slide seat.

[0038] Preferably, the flexible traction member is a webbing or a rope.

[0039] Preferably, the front foot fixing seat is provided with a first blocking rib, and the rear foot fixing seat is provided with a second blocking rib, and the first blocking rib blocks the second blocking rib when the front foot fixing seat and the rear foot fixing seat are folded to a preset position.

[0040] Preferably, the first blocking rib is adjacent to a portion of the front foot fixing seat for assembling with the front foot, and the second blocking rib is adjacent to a portion of the rear foot fixing seat for assembling with the rear foot.

[0041] Compared with the prior art, since the children's dining chair of the present invention further includes a sliding seat that slides on the foot frame along the longitudinal direction of the foot frame, the seat is assembled on the sliding seat and selectively performs an expansion and contraction operation relative to the sliding seat, so that the seat can slide upward along the foot frame together with the sliding seat, and can also be expanded and contracted relative to the sliding seat, and the sliding seat drives the foot frame to fold during the process of sliding upward along the foot frame, so that the purpose of folding the children's dining chair of the present invention can be achieved. Among them, the seat can be folded relative to the sliding seat before the sliding seat slides upward along the foot frame, folded during the process of sliding the sliding seat sliding upward along the foot frame, or folded after the sliding seat slides upward along the foot frame, so that the folding operation of the children's dining chair of the present invention is very simple, thereby reducing the burden of use for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the three-dimensional structure of a preferred embodiment of the present invention, when the seat and the footrest of the children's dining chair are both in the unfolded position.

[0043] Figure 2 yes Figure 1 The three-dimensional structure diagram of the children's dining chair after the dining tray is removed is shown.

[0044] Figure 3 yes Figure 2 The three-dimensional structure schematic diagram of the children's dining chair when viewed from another angle is shown.

[0045] Figure 4 yes Figure 2 The three-dimensional structure schematic diagram of the children's dining chair when viewed from another angle is shown.

[0046] Figure 5 yes Figure 3 The illustrated diagram is a schematic diagram of the internal structure of the children's dining chair after being cut along a plane arranged in the left-right direction of the children's dining chair.

[0047] Figure 6 yes Figure 4 The three-dimensional structure schematic diagram of the children's dining chair when viewed from another angle is shown.

[0048] Figure 7 yes Figure 4 The three-dimensional structure schematic diagram of the children's dining chair when viewed from another angle is shown.

[0049] Figure 8 yes Figure 3 The diagram shown is a schematic diagram of the state of the children's dining chair when the seat is folded to a certain position.

[0050] Fig. 9 yes Figure 8 A schematic structural diagram of a children's dining chair from another angle is shown.

[0051] Fig.10 yes Figure 8 The child dining chair is shown in a further folded state.

[0052] Fig.11 yes Fig.10 The three-dimensional exploded structural diagram of the children's dining chair shown.

[0053] Fig.12 yes Figure 8 A schematic diagram of the children's dining chair shown in another angle.

[0054] Fig.13 yes Figure 8 The child's dining chair is shown in a fully folded position.

[0055] Fig.14It is a schematic diagram of the three-dimensional structure of a children's dining chair after the dining tray is removed in a preferred embodiment provided by the present invention.

[0056] Fig.15 yes Fig.14 The illustrated diagram is a three-dimensional structural diagram of a children's dining chair when the seat is folded to a certain position.

[0057] Fig.16 It is a partial structural schematic diagram showing a front foot fixing seat with a first matching blocking rib and a rear foot fixing seat with a second matching blocking rib assembled together. DETAILED DESCRIPTION

[0058] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0059] The child dining chair of the present invention comprises a tripod that can be extended and retracted, a seat that can be extended and retracted, and a slide seat that is slidably mounted on the tripod along the longitudinal direction of the tripod. The seat is mounted on the slide seat and can be selectively extended and retracted relative to the slide seat, and the slide seat drives the tripod to be folded during the process of sliding upward along the tripod. Specifically, the tripod comprises a front foot, a rear foot, an extension and retraction joint connecting the front foot and the rear foot, and a locking structure that is arranged on the extension and retraction joint and selectively locks or releases the extension and retraction joint. The slide seat is slidably mounted on the front foot and is provided with a driving structure. The driving structure drives the locking structure to release the locking structure during the process of the slide seat sliding upward along the front foot, so as to ensure the reliability of the extension and retraction operation between the front foot and the rear foot by means of the extension and retraction joint. At the same time, the extension position between the front foot and the rear foot is locked by means of the locking structure to prevent accidental folding between the front foot and the rear foot, thereby ensuring the safety of the use of the child dining chair. For example, the front foot and the rear foot are each a U-shaped tube with an opening facing upward, so as to reduce the weight of the tripod, simplify the structure of the tripod, and ensure the reliability of the tripod in providing support for the seat, but it is not limited thereto. In order to prevent the tripod from folding due to the upward sliding of the sliding seat when the seat is not folded, the children's dining chair of the present invention may also include a blocking member movably mounted on the sliding seat and having at least a blocking position and an avoidance position relative to the sliding seat. When the blocking member is in the blocking position, it blocks the tripod to block the sliding seat from sliding upward. When the blocking member is in the avoidance position, it disengages from the blocking member to disengage from blocking the sliding seat from sliding upward. The seat has at least a folding position and an unfolding position relative to the sliding seat. When the seat is in the unfolding position, the blocking member is driven to switch from the avoidance position to the blocking position. When the seat is switched to the folded position, the driving of the blocking member is disengaged so that the blocking member is selectively switched to the avoidance position. Therefore, the seat and the tripod are folded in sequence, ensuring the orderliness of the folding of the seat and the tripod, but the present invention is not limited to this.

[0060] It is worth noting that the following description is only a preferred embodiment of the present invention. Of course, in other embodiments, all children's dining chairs including a seat, a footrest and a slide seat fall within the protection scope of the present invention, so they are not limited to the following embodiments.

[0061] See also Figure 1 to Figure 2 and Figure 14 to Figure 15 The preferred embodiment of the children's dining chair 100 provided by the present invention comprises a tripod 10 that can be extended and retracted, a seat 20 that can be extended and retracted, and a slide 30 that is slidably mounted on the tripod 10 along the longitudinal direction of the tripod 10. The seat 20 is mounted on the slide 30 and selectively extended and retracted relative to the slide 30, so that the seat 20 slides on the tripod 10 along with the slide 30, and the seat 20 can be folded relative to the slide 30; and the slide 30 drives the tripod 10 to fold during the process of sliding upward along the tripod 10, and the tripod 10 is in a state of being fully folded. Fig.13 Specifically, the children's dining chair 100 may also include a movable device mounted on the slide 30 and having at least Fig.14 The blocking position shown and Fig.15 The blocking member 40 is in the avoidance position shown in FIG. Fig.14 In the blocking position shown, the blocking member 40 blocks the tripod 10, specifically blocks the front foot fixing seat 131 of the expansion and contraction joint 13 described below, so as to block the slide 30 from sliding upward, thereby preventing the slide 30 from driving the tripod 10 to fold when the seat 20 is not folded; the blocking member 40 is located as shown in FIG. Fig.15 The avoidance position shown is disengaged from the footrest 10, specifically disengaged from the front foot fixing seat 131, so as to allow the slide 30 to slide upward; and the seat 20 has at least the following relative to the slide 30: Fig.11 The folded position shown and Fig.14 In the deployed position shown, the seat 20 is located as shown in FIG. Fig.14 When the seat 20 is in the deployed position as shown, the blocking member 40 is driven to switch from the avoidance position to the blocking position, so that the blocking member 40 at this time abuts against the tripod 10, thereby preventing the slide 30 from sliding upward; Fig.11 In the folded position shown, the blocking member 40 is disengaged from being driven, so that the blocking member 40 is selectively switched to the avoidance position, so that the blocking member 40 at this time is disengaged from the resistance of the tripod 10, thereby allowing the slide seat 30 to slide upward, so that the seat 20 and the tripod 10 are folded in sequence, ensuring the orderliness of the folding of the seat 20 and the tripod 10, but not limited to this. More specifically, as follows:

[0062] like Figures 1 to 5 ,as well as Figures 7 to 15As shown, the tripod 10 includes a front foot 11, a rear foot 12, an extension and retraction joint 13 connecting the front foot 11 and the rear foot 12, and a locking structure 14 arranged on the extension and retraction joint 13 and selectively locking or releasing the extension and retraction joint 13, so that the front foot 11 and the rear foot 12 are pivotally connected in a snap-fitting manner with the help of the extension and retraction joint 13 and the locking structure 14; at this time, the slide 30 is slidably arranged on the front foot 11 and is provided with a driving structure 31, and the driving structure 31 drives the locking structure 14 to release the lock during the process of the slide 30 sliding upward along the front foot 11, so as to achieve the purpose of driving the extension and retraction joint 13 to release the lock by the slide 30 and allow the front foot 11 and the rear foot 12 to be retracted. Specifically, the expansion and retraction joints 13 are respectively assembled with the tops of the front foot 11 and the rear foot 12. Preferably, the front foot 11 and the rear foot 12 are each a U-shaped member with an opening facing upward, such as but not limited to a U-shaped tube or a U-shaped rod. Correspondingly, the left top of the front foot 11 and the rear foot 12 are assembled with one expansion and retraction joint 13, and the right top of the front foot 11 and the rear foot 12 are assembled with another expansion and retraction joint 13, that is, the expansion and retraction joints 13 are arranged on the left and the right. The purpose of such a design is to reduce the weight of the tripod 10, simplify the structure of the tripod 10, and ensure the reliability of the tripod 10 in providing support for the seat 20, but it is not limited to this. More specifically, the extension and retraction joint 13 includes a front foot fixing seat 131 and a rear foot fixing seat 132. The front foot fixing seat 131 is pivotally connected to the rear foot fixing seat 132 via a pivot 133. The top of the front foot 11 is assembled with the front foot fixing seat 131, and the top of the rear foot 12 is assembled with the rear foot fixing seat 132. Preferably, the front foot fixing seat 131 is in the left and right direction (i.e., Figure 6 The front foot fixing seat 131 is located on the inner side and the rear foot fixing seat 132 is located on the outer side. This arrangement can better ensure the reliability of the slide seat 30 driving the tripod 10 to fold, but is not limited to this. For example, Fig.16As shown, in order to prevent the front foot fixing seat 131 and the rear foot fixing seat 132 from over-folding, the front foot fixing seat 131 is provided with a first blocking rib 1313, and the rear foot fixing seat 132 is provided with a second blocking rib 1323. When the first blocking rib 1313 is folded to a preset position (for example, but not limited to, a position where the front foot 11 and the rear foot 12 are parallel or approximately parallel to each other) between the front foot fixing seat 131 and the rear foot fixing seat 132, the second blocking rib 1323 blocks it. Preferably, The first blocking rib 1313 is adjacent to the portion 131a of the front foot fixing seat 131 for assembly with the front foot 11, that is, the portion 131a of the front foot fixing seat 131 for assembly with the front foot 11 is adjacent to the first blocking rib 1313; the second blocking rib 1323 is adjacent to the portion 132a of the rear foot fixing seat 132 for assembly with the rear foot 12, that is, the portion 132a of the rear foot fixing seat 132 for assembly with the rear foot 12 is adjacent to the second blocking rib 1323. It is worth noting that the assembly joints among the pivot 133, the front foot fixing seat 131 and the rear foot fixing seat 132 are well known in the art, so they will not be described in detail here.

[0063] like Fig.11 As shown, the locking structure 14 includes an axial direction along the pivot 133 (i.e., the left and right direction of the children's dining chair 100, which is also Figure 6The locking member 141 is located between the front foot fixing seat 131 and the rear foot fixing seat 132 (in the direction indicated by the double arrows in the figure), the releasing member 142 linked with the locking member 141, the front matching locking portion (not shown) provided on the front foot fixing seat 131, and the rear matching locking portion 144 provided on the rear foot fixing seat 132. The locking member 141 is sleeved on the pivot 133 and slides along the axial direction of the pivot 133. When the locking member 141 is locked with the front matching locking portion and the rear matching locking portion 144 at the same time, the expansion and contraction joint 13 is locked so that the expansion and contraction joint 13 is prohibited from being folded between the front foot 11 and the rear foot 12. When the slide seat 30 slides upward, the driving structure 31 drives the releasing member 142 to link the locking member 141 to disengage from the locking with the rear matching locking portion 144 to release the expansion and contraction joint 13, so that the expansion and contraction joint 13 can be folded at this time, thereby allowing the expansion and contraction between the front foot 11 and the rear foot 12 to be folded. Of course, according to actual needs, the driving structure 31 can also drive the release member 142 to drive the locking member 141 to disengage from the front locking portion, or to disengage from the front locking portion and the rear locking portion 144 at the same time to release the extension and retraction joint 13 during the upward sliding process of the slide seat 30, so it is not limited to this. Specifically, the end of the front foot fixing seat 131 facing away from the rear foot fixing seat 132 is provided with a receiving cavity 1311 for receiving the release member 142 and a guide groove 1312 communicating with the receiving cavity 1311. The guide groove 1312 extends along the radial direction of the pivot 133 and is aligned with the driving structure 31. The release member 142 is located in the receiving cavity 1311. Preferably, the release member 142 is a round block structure so that the release member 142 is more reliably located in the receiving cavity 1311. The release member 142 is also slidably inserted into the front foot fixing seat 131 along the axial direction of the pivot 133. Therefore, when the slide seat 30 slides upward along the front foot 11, the driving structure 31 is moved in the guide groove 131. 2 slides down toward the accommodating cavity 1311, thereby pushing the unlocking member 142 in the accommodating cavity 1311 to slide toward the direction close to the front foot fixing seat 131, and the unlocking member 142 sliding toward the front foot fixing seat 131 drives the locking member 141 to slide away from the rear matching locking portion 144, thereby releasing the locking of the extension and retraction joint 13; when the slide seat 30 drives the driving structure 31 to slide downward, the unlocking member 142 and the locking member 141 can be reset with the help of an external reset member (not shown in the figure), and the reset member can be a spring to provide a reset force for the unlocking member 142 and the locking member 141 through compression deformation, twisting deformation or stretching deformation of the spring, so it is not described in detail here. For example, the driving structure 31 is a rib, a rod, a block or a sheet, the locking member 141 is an external gear, and the front locking portion and the rear locking portion 144 are each an internal gear to ensure the smoothness of the locking member 141 locking or releasing with the front locking portion and the rear locking portion 144, but not limited to this.It is understandable that in other embodiments, the locking structure 14 may further include a locking member 141, a release member 142 linked to the locking member 141, and a matching locking portion (equivalent to the rear matching locking portion) locked with the locking member 141, the matching locking portion being arranged at the rear foot fixing seat 132, the locking member 141 being movably arranged at the front foot fixing seat 131, preferably, the locking member 141 is located between the front foot fixing seat 131 and the rear foot fixing seat 132 along the axial direction of the pivot 133, and the locking member 141 is arranged in a sliding manner, so the locking member 141 When 141 is locked with the matching locking part, it locks the stowage joint 13. When the slide seat 30 slides upward, the driving structure 31 drives the release member 142 to link the locking member 141 and the matching locking part to release the lock. The locking structure 14 locks the stowage joint 13, and the driving structure 31 drives the stowage joint 13 to release the lock when the slide seat 30 slides upward. It is worth noting that the locking member 141 can be slidably arranged on the rear foot fixing seat 132, and the matching locking part is arranged at the front foot fixing seat 131, so it is not limited to this.

[0064] like Fig.14 and Fig.15 As shown, the blocking member 40 is pivotally connected to the slide seat 30, preferably so that the blocking member 40 pivots left and right relative to the slide seat 30 during the switching process between the blocking position and the avoidance position, so that the seat 20 can more easily and smoothly drive the blocking member 40 to switch from the avoidance position to the blocking position; of course, according to actual needs, the blocking member 40 can also be slidably arranged on the slide seat 30, preferably so that the blocking member 40 slides left and right relative to the slide seat 30 during the switching process between the blocking position and the avoidance position, so it is not limited to this. Specifically, the children's dining chair 100 also includes a reset member (not shown in the figure) that always has the tendency to drive the blocking member 40 to switch from the blocking position to the avoidance position. When the seat 20 switches to the folded position, the reset member drives the blocking member 40 to switch to the avoidance position, so that the blocking member 40 follows the unfolding and retracting operation of the seat 20 and performs a corresponding position switch, so the operation is more convenient; for example, the reset member can be a spring, and the compression deformation, tensile deformation or torsional deformation of the spring provides a reset force for the reset of the blocking member 40, so it is not limited to this. It is understandable that in other embodiments, a spring structure (not shown in the figure) can be fixed on the slide 30, the spring structure is suspended on the slide 30, and the blocking member 40 is installed on the suspended end of the spring structure. At this time, the blocking member 40 can switch between the avoidance position and the blocking position through the bending deformation of the spring structure, thereby achieving the purpose of switching the blocking member 40 between the avoidance position and the blocking position.

[0065] like Figures 1 to 15As shown, the seat 20 includes a seat plate 21, an armrest fixing seat 22, a folding link 23 and a dining tray 27. The folding link 23, the seat plate 21, the armrest fixing seat 22 and the slide seat 30 are assembled together to form a four-bar linkage mechanism for folding movement, and the dining tray 27 is detachably mounted on the armrest fixing seat 22, so that the operator can realize the expansion and contraction operation of the seat plate 21 relative to the slide seat 30 by operating the folding link 23. Specifically, the seat plate 21 is pivoted with the slide seat 30 to form a first pivot point P1, the armrest fixing seat 22 is pivoted with the slide seat 30 to form a second pivot point P2 located above the first pivot point P1, the folding link 23 is pivoted with the armrest fixing seat 22 to form a third pivot point P3 located in front of the second pivot point P2, and the folding link 23 is pivoted with the seat plate 21 to form a fourth pivot point P4 located below the third pivot point P3. Preferably, Fig. 9 As shown, the first pivot point P1 is located at the upper end of the seat plate 21, the second pivot point P2 is located at the rear end of the armrest fixing seat 22, the third pivot point P3 is located at the middle of the armrest fixing seat 22, and the fourth pivot point P4 is located at the front end of the seat plate 21 to ensure the smoothness of the seat plate 21 relative to the slide seat 30. More specifically, the armrest fixing seat 22 and the slide seat 30 are respectively located outside the left and right sides of the seat plate 21, and the folding linkage 23 is a U-shaped member with an opening facing upward, such as but not limited to a U-shaped tube or a U-shaped rod, and the left top of the U-shaped member is pivotally connected to the left armrest fixing seat 22, and the right top of the U-shaped member is pivotally connected to the right armrest fixing seat 22, and the front end of the seat plate 21 is placed in the U-shaped member and pivotally connected to the U-shaped member to improve the linkage reliability among the seat plate 21, the folding linkage 23, the armrest fixing seat 22 and the slide seat 30, but not limited to this. It is understandable that, according to actual needs, the dining tray 27 can be deleted from the seat 20, so that the seat 20 at this time only includes the seat plate 21, the armrest fixing seat 22 and the folding linkage 23, so it is not limited to the above example.

[0066] like Figure 2 and Fig. 9 As shown, the seat plate 21 is provided with a snap-in guide groove 211, and the slide seat 30 is provided with a snap-in guide rail 32 matching the snap-in guide groove 211. The snap-in guide rail 32 is separated from the snap-in guide groove 211 after the seat 20 is folded. Fig. 9 As shown, the clamping guide rail 32 is clamped with the clamping guide groove 211 after the seat 20 is unfolded. Figure 2 As shown, when the seat 20 is unfolded and used, the seat plate 21 is provided with more reliable support by means of the cooperation between the clamping guide rail 32 and the clamping guide groove 211. Specifically, the clamping guide groove 211 is located in the middle of the side wall of the seat plate 21 facing the slide 30. It is worth noting that, according to actual needs, the clamping guide groove 211 can be provided on the slide 30, and the clamping guide rail 32 is correspondingly provided on the seat plate 21, so it is not limited to the above example.

[0067] like Figures 4 to 8 As shown, the seat plate 21 is provided with a clamping member 25 and a flexible traction member 26 connected to the clamping member 25, and the slide seat 30 is provided with a matching clamping portion 33 that cooperates with the clamping member 25. The clamping member 25 is arranged along the left and right direction (i.e. Figure 6 The locking member 25 is configured to slide along the left and right directions of the children's dining chair 100 and selectively engage or release the locking member 33, thereby allowing the operator to drive the seat plate 21 to perform an expansion and contraction operation relative to the slide seat 30 when operating the folding linkage member 23. Specifically, as Figure 4 and Figure 5 As shown, the engaging member 25 is located on the seat plate 21 and is arranged on the left and the right. One end of the flexible traction member 26 is connected to the engaging member 25 on the left, and the other end of the flexible traction member 26 is connected to the engaging member 25 on the right. The middle part of the flexible traction member 26 is also exposed above the seat plate 21, so that the operator can achieve the purpose of synchronous release of the engaging members 25 on the left and right sides by operating the flexible traction member 26, but it is not limited to this. It is worth noting that according to actual needs, the engaging member 25 and the flexible traction member 26 can be arranged on the slide seat 30, and correspondingly, the matching card portion 33 is arranged on the seat plate 21, so it is not limited to the above example.

[0068] like Figure 2 , Figure 6 and Figure 7 As shown, the seat 20 also includes a backrest 24, and the side wall of the backrest 24 is pivotally connected to the slide seat 30 to form a fifth pivot point P5; in order to synchronize the unlocking of the seat plate 21 and the unlocking of the backrest 24, the children's dining chair 100 also includes a pushing member 60 slidably arranged on the backrest 24 along the up and down directions of the backrest 24 and a "door"-shaped plug-in member 70 that selectively snaps into or moves away from the slide seat 30, and the plug-in member 70 is slidably arranged on the backrest 24 along the up and down directions of the backrest 24. The upper end of the pushing member 60 pushes and cooperates with the plug-in member 70, and the lower end of the pushing member 70 is linked to the engaging member 25. Therefore, the pushing member 60 pushes the plug-in member 70 to move away from the slide seat 30 during the process of the engaging member 25 being disengaged from the engaging portion 33, thereby realizing the synchronous folding of the seat plate 21 and the backrest 24; more specifically, the engaging member 25 has a sliding direction relative to the engaging member 25 (i.e. Figure 6The first inclined surface 251 is inclined (in the direction indicated by the double arrows in the middle), and the push member 60 has a second inclined surface 61 that matches the first inclined surface 251. The engaging member 25 drives the push member 60 to slide upward through the cooperation of the first inclined surface 251 and the second inclined surface 61, so as to achieve the purpose of the engaging member 25 and the push member 60 being linked, and ensure the reliability of the engaging member 25 linking the push member 60 to slide along the up and down direction of the backrest 24; preferably, the plug-in member 70 is located on the back of the backrest 24, and the push member 60 is located on the front of the backrest 24. Such an arrangement is more reasonable, but not limited to this. For example, the plug-in member 70 is an iron wire or a steel wire to ensure the reliability of the plug-in member 70 locking the backrest 24 and the sliding seat 30; and the flexible traction member 26 is a webbing or a rope to facilitate the installation of the flexible traction member 26 and the user's operation of the flexible traction member 26, but not limited to this. In order to increase the number of unlocking operations for the user between the backrest 24 and the slide 30, the backrest 24 is also equipped with an operating button 80 connected to the top of the plug-in component 70. The operating button 80 drives the plug-in component 70 to be inserted into or removed from the slide 30 to achieve angle adjustment of the backrest 24. Preferably, the operating button 80 is located at a position near the top of the backrest 24, and a reset spring is also provided therein. With the help of the reset spring, the operating button 80 can drive the plug-in component 70 to automatically reset when it is automatically reset, so it is not limited to this.

[0069] In conjunction with the accompanying drawings, the working principle of a preferred embodiment of a children's dining chair 100 provided by the present invention is described as follows: Figure 2 The child dining chair 100 in the state shown is folded into Fig.13 When the child dining chair 100 is in the state shown, the operator first pulls the flexible traction member 26, and the flexible traction member 26 drives the engaging member 25 to disengage from the engaging portion 33, thereby releasing the locking between the left and right sides of the rear end of the seat plate 21 and the slide seat 30; at the same time, during the process of the engaging member 25 disengaging from the engaging portion 33, the first inclined surface 251 and the second inclined surface 61 cooperate to drive the pushing member 60 to slide upward, so that the pushing member 60 that slides upward pushes the inserting member 70 to slide upward, The upward sliding card member 70 moves away from the slide seat 30 to release the lock between the backrest 24 and the slide seat 30, thereby allowing the seat plate 21 and the backrest 24 to be folded relative to the slide seat 30; then, while the operator continues to apply force to the flexible traction member 26, he also drives the folding link 23 to move downward and rearward, so that the folding link 23 drives the seat plate 21 to move backward and downward, and also drives the backrest 24 to rotate backward and downward, and finally the backrest 24 and the seat plate 21 are folded together, and the state is shown in FIG. Fig.10 , Fig.11 and Fig.12Then, the seat 20 is directly pulled upward to make the slide 30 slide upward along the front leg 11, so that the driving structure 31 of the slide 30 is guided by the guide groove 1312 to approach the release member 142, and finally the driving structure 31 pushes the release member 142 to link the locking member 141 away from the rear locking portion 144, thereby releasing the locking of the extension and retraction joint 13 and allowing the front leg 11 and the rear leg 12 to be locked, so that the operator can fold the tripod 10. Fig.13 shown.

[0070] Compared with the prior art, since the child dining chair 100 of the present invention further includes a slide seat 30 that is slidably mounted on the foot frame 10 along the longitudinal direction of the foot frame 10, the seat 20 is mounted on the slide seat 30 and selectively performs an expansion and contraction operation relative to the slide seat 30, so that the seat 20 can slide upward along the foot frame 10 together with the slide seat 30, and can also be expanded and contracted relative to the slide seat 30, and the slide seat 30 drives the foot frame 10 to be folded during the process of sliding upward along the foot frame 10, so that the purpose of folding the child dining chair 100 of the present invention can be achieved. Among them, the seat 20 can be folded relative to the slide seat 30 before the slide seat 30 slides upward along the foot frame 10, folded during the process of sliding the slide seat 30 along the foot frame 10, or folded after the slide seat 30 slides upward along the foot frame 10, so that the folding operation of the child dining chair 100 of the present invention is very simple, thereby reducing the burden of use for the user.

Claims

1. A children's dining chair, characterized in that: The children's dining chair comprises a foot frame (10) and a seat (20), wherein the foot frame can be unfolded and folded relative to the seat, and the seat comprises a seat plate (21) and a backrest (24). The children's dining chair also comprises a slide seat (30) slidably arranged on the foot frame, and the seat is mounted on the slide seat and can be selectively unfolded and folded relative to the slide seat, the seat plate can be locked or unlocked with the slide seat, and the backrest can be locked or unlocked with the slide seat, and the unlocking of the seat plate and the slide seat and the unlocking of the backrest and the slide seat are synchronized.

2. The children's dining chair according to claim 1, characterized in that: The chair further comprises an armrest fixing seat (22) and a folding linkage (23); the folding linkage (23), the seat plate (21), the armrest fixing seat (22) and the sliding seat (30) are assembled together to form a four-bar linkage mechanism for folding movement.

3. The children's dining chair according to claim 2, characterized in that: The seat plate and the slide seat are pivotally connected to form a first pivot point, the armrest fixing seat and the slide seat are pivotally connected to form a second pivot point located above the first pivot point, the folding linkage and the armrest fixing seat are pivotally connected to form a third pivot point located in front of the second pivot point, and the folding linkage and the seat plate are pivotally connected to form a fourth pivot point located below the third pivot point.

4. The children's dining chair according to claim 1, characterized in that: The children's dining chair also includes a pushing member (60) slidably arranged on the backrest along the up and down directions of the backrest and an inserting member (70) selectively inserted into or removed from the sliding seat, wherein the pushing member is used to push the inserting member away from the sliding seat during the unlocking process between the seat plate and the sliding seat.

5. The children's dining chair according to claim 4, characterized in that: The seat plate is provided with a clamping piece (25), and the sliding seat is provided with a matching clamping portion (33) that is engaged with or disengaged from the clamping piece.

6. The children's dining chair according to claim 5, characterized in that: The card inserting member is slidably arranged on the backrest along the up-down direction of the backrest, the upper end of the pushing member is pushed and matched with the card inserting member, and the lower end of the pushing member is linked with the engaging member.

7. The children's dining chair according to claim 6, characterized in that: The pushing member pushes the card inserting member to move away from the sliding seat during the process of the engaging member being disengaged from the engaging portion, so as to achieve synchronous folding of the seat plate and the backrest.

8. The children's dining chair according to claim 6, characterized in that: The engaging member has a first inclined surface (251) inclined relative to the sliding direction of the engaging member, and the pushing member has a second inclined surface (61) matched with the first inclined surface. The engaging member drives the pushing member to slide upward through the cooperation of the first inclined surface and the second inclined surface, thereby realizing the linkage between the engaging member and the pushing member.

9. The children's dining chair according to claim 4, characterized in that: The card inserting member is located on the back side of the backrest, and the pushing member is located on the front side of the backrest.

10. The children's dining chair according to claim 9, characterized in that: The plug-in card is an iron wire or a steel wire.

11. The children's dining chair according to claim 5, characterized in that: The seat plate is provided with a flexible traction member (26) connected to the engaging member, the engaging member is located on the seat plate and arranged on the left and the right, one end of the flexible traction member is connected to the engaging member on the left, and the other end of the flexible traction member is connected to the engaging member on the right, and the middle part of the flexible traction member is exposed above the seat plate.

12. The children's dining chair according to claim 11, characterized in that: The flexible traction member is a webbing or a rope.

13. The children's dining chair according to claim 4, characterized in that: The backrest is provided with an operating button (80) connected to the top end of the card inserting member, and the operating button drives the card inserting member to be inserted into or removed from the sliding seat to achieve angle adjustment of the backrest.

14. The children's dining chair according to claim 13, characterized in that: The operating button is located at a position adjacent to the top of the back of the backrest, and a reset spring is arranged inside the operating button so that the operating button can drive the card inserting member to automatically reset when automatically reset by means of the reset spring.

15. The children's dining chair according to claim 11, characterized in that: The flexible traction member is pulled to drive the engaging member to disengage from the engaging portion, and the engaging member disengages from the engaging portion to drive the pushing member to slide upward to push the card inserting member away from the slide seat to release the locking between the backrest and the slide seat.

16. The children's dining chair according to claim 1, characterized in that: The unlocking of the seat plate and the slide seat can drive the backrest and the slide seat to unlock each other.

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