WO2019104493A1 - Dining chair for children - Google Patents

Abstract

Disclosed is a dining chair for children, comprising at least two side supports, a transverse support arranged between the side supports and a dining plate (31), wherein each side support comprises a bottom frame, a vertical rod assembly (12) and a backrest rod (11); an upper end portion of the bottom frame is rotatably connected to a lower end portion of the vertical rod assembly (12) via a first rotating joint (5), and an upper end portion of the vertical rod assembly (12) is rotatably connected to a lower end portion of the backrest rod (11) via a second rotating joint (6); locking mechanisms are arranged in the first rotating joint (5) and the second rotating joint (6), respectively; the dining chair for children has an unfolded state and a folded state; in the unfolded state, the first rotating joint (5) and the second rotating joint (6) are locked, and the bottom frame, the vertical rod assembly (12) and the backrest rod (11) are relatively unfolded; and in the folded state, the first rotating joint (5) and the second rotating joint (6) are unlocked, and the bottom frame, the vertical rod assembly (12) and the backrest rod (11) become close to one another. The dining chair for children is easy to fold, has a small size after folding, and is easy to carry.

Description

 Children's dining chair

 Technical field

 The invention belongs to the field of children's products, and particularly relates to a children's dining chair.

 Background technique

Because children's body size is different from that of adults, children can't use the general dining chair when dining, but need to use the specially designed children's dining chair to help them eat, and to facilitate adult feeding. Among the various children's dining chairs, the foldable children's dining chair can be opened or folded at any time according to actual needs, so that the use of the portable chair is quite convenient, which makes it more widely used, and has gradually become a trend of development of children's dining chairs.

At present, the prior art collapsible children's dining chair generally includes a dining chair frame body that can be in an unfolded state and a folded state, and a seat plate that is disposed on the dining chair frame body. Such as Chinese patent CN202341489U A collapsible children's dining chair is disclosed, which comprises a front support frame, a rear support frame, a seat plate, a backrest and two handrails, and the left and right sides of the seat plate are pivotally connected to the front support frame and the rear support frame. The backrest is pivotally connected to the rear end of the seat plate, and the two armrests are respectively pivotally connected to the left and right ends of the backrest, and the two handrails are pivotally connected to the front support frame and the rear support frame. Although the child dining chair of this structure can be folded, the size of the child dining chair after folding is not small enough, especially in the up and down direction and the left and right direction.

 Summary of the invention

 In view of the above problems, it is an object of the present invention to provide a children's dining chair that is small in size after folding.

 In order to achieve the above object, the technical solution adopted by the present invention is as follows:

A children's dining chair includes at least two side brackets, a cross bracket disposed between the side brackets, and a dinner plate, each of the side brackets respectively including a chassis, a pole assembly, and a backrest bar, the chassis The upper end portion and the lower end portion of the upright rod assembly are rotatably connected by a first rotating joint, and the upper end portion of the upright rod assembly is rotatably connected by a second rotating joint and a lower end portion of the backrest rod; a rotating mechanism is respectively disposed in the rotating joint and the second rotating joint;

The child dining chair has an unfolded state and a folded state. When in the unfolded state, the first rotating joint and the second rotating joint are locked, and the underframe, the pole assembly and the backrest rod are relatively unfolded; in the folded state, The first rotating joint and the second rotating joint are unlocked, and the bottom frame, the pole assembly and the backrest rod are close to each other.

 In some embodiments, the chassis includes front and rear brackets that are relatively deployable or close together, the upper end of the front bracket and / Or the upper end portion of the rear bracket and the lower end portion of the pole assembly are rotatably connected by the first rotating joint, the child dining chair is in a folded state, the front bracket, the rear bracket, the pole assembly and the backrest The rods are close together.

In some embodiments, the first rotating joint includes a lower pole connecting piece fixedly coupled to a lower end portion of the pole assembly, a front bracket connecting member fixedly coupled to an upper end portion of the front bracket, and the rear bracket The upper end portion is fixedly connected to the rear bracket connecting member, and the lower pole connecting member, the front bracket connecting member and the rear bracket connecting member are rotatably connected by a fourth pivot.

In some embodiments, the first rotating joint further includes an arbitrarily disposed first locking member, and the outer rim connecting member, the front bracket connecting member and the outer side of the rear bracket connecting member are respectively provided with the outer locking member a slot into which the first locking member is inserted; when the child dining chair is in an unfolded state, the slots on the lower upright connector, the front bracket connector, and the rear bracket connector are coincident with each other to form a first lock slot, A first locking member is inserted into the first locking groove to lock the first rotating joint; and when the child dining chair is in a folded state, the first locking member is disengaged from the groove.

In some embodiments, the child dining chair further includes an unlocking mechanism capable of interlocking the locking mechanism in the first rotating joint and the locking mechanism in the second rotating joint.

In some embodiments, the tray is rotatably coupled to the upright assembly and the backrest rod by the second rotating joint; or the tray is passed with the pole assembly or the backrest rod The third rotating joint is rotatably connected.

In some embodiments, the dinner plate is rotatably coupled to the backrest bar via a third pivot joint, and the third rotary joint is provided with a locking mechanism, the child dining chair further comprising the first rotation A locking mechanism in the joint, a locking mechanism in the second rotating joint, and a locking mechanism in the third rotating joint interlock the unlocking mechanism.

In some embodiments, the second rotating joint includes a backrest rod connector, a first slider, a second locking member, and an upper pole connecting member, the backrest rod connecting member and the lower end portion of the backrest rod are fixedly connected The upper pole connecting member and the upper end portion of the pole assembly are fixedly connected; the backrest rod connecting member, the first slider, the second locking member and the upper pole connecting member are sequentially rotated by the fifth pivot phase Connecting, the first slider and the second locking member are slidably disposed between the backrest bar connector and the upper pole connecting member along an axis line of the fifth pivot; the second The outer edge of the locking member has a second locking portion with a tooth shape, and the backrest rod connecting member and the upper pole connecting member respectively have a locking groove matched with the second locking portion; when the child meal When the chair is in the unfolded state, the locking groove on the backrest bar connector and the upper pole connecting member are correspondingly coincident to insert the second locking portion therein, the second rotating joint is locked; when the child The second locking portion is disengaged from the backrest lever when the dining chair is folded Or the locking grooves on the pole member connected to the connecting member, the second rotating joint is unlocked.

In some embodiments, the third rotating joint includes the backrest bar connector and a third locking member, a second slider, a tray connector, the tray connector being coupled to the tray; The backrest bar connector, the third locking member, the second slider, and the tray connector are sequentially rotatably connected by a sixth pivot, and the third locking member and the second slider are along the axis of the sixth pivot The core wire is slidably disposed between the backrest bar connector and the tray connector; the outer edge of the third locking member has a toothed third locking portion, the backrest bar connector and the plate connector Separating a locking groove with the third locking portion; when the child dining chair is in the unfolded state, the locking groove on the backrest bar connector and the serving plate connector are correspondingly coincident to make the third a locking portion is inserted therein, the third rotating joint is locked; when the child dining chair is folded, the third locking portion is disengaged from a lock groove on the backrest bar connector or on the tray connector, the third The rotating joint is unlocked.

 In some embodiments, the unlocking mechanism comprises:

 a handle that is slidably disposed on the plate connector;

a first traction cable, one end is fixedly connected to the handle, the other end is fixedly connected to the second slider, and the second slider is disposed between the tray connector and the third locking member. a side surface of the dinner plate connector having a second guiding slope in contact with the second slider to slide the second slider along the sixth pivot to push the third locking member Disengaging the lock groove on the tray connector, the third rotating joint is unlocked;

 a first traction cable seat rotatably disposed in the third rotating joint along with the tray connector;

a second traction cable, one end of which is fixedly connected to the first traction cable seat, the other end is fixedly connected to the first sliding block, and the first sliding block is disposed between the backrest bar connecting piece and the second locking piece a side surface of the backrest bar connector has a first guiding slope that is in contact with the first slider to slide the first slider along the fifth pivot to push the second The locking member is disengaged from the locking groove on the backrest bar connector, and the second rotating joint is unlocked;

 a second traction cable seat rotatably disposed in the second rotating joint with the backrest bar connector;

The third traction cable has one end fixedly connected to the second traction cable seat, and the other end fixedly connected to the first rotating joint to pull the first rotating joint to unlock.

In some embodiments, each of the side brackets further includes a seat pole and a connecting rod, respectively, the seat pole being rotatably coupled to the pole assembly by a first pivot, the upper end of the connecting rod passing through a second pivot rotatably coupled to the backrest bar or the second pivot joint, the lower end of the link being rotatably coupled to the seat post by a third pivot; the upright assembly, the pole The backrest lever, the connecting rod and the seat post constitute a four-bar linkage mechanism to be able to be relatively deployed and close to each other.

In some embodiments, the child dining chair is in an unfolded state, the pole assembly has a first connecting member that extends forwardly, the seat rod has a second connecting member that extends downwardly, a front end portion of the first connecting member and a lower end portion of the second connecting member are rotatably connected by the first pivot; and / or, the seat bar has a third connecting member that extends upwardly, and an upper end portion of the third connecting member and a lower end portion of the connecting rod are rotatably connected by the third pivot.

 In some embodiments, the axis lines of the first pivot, the second pivot, and the third pivot are parallel to each other.

In some embodiments, the upright assembly includes a lower upright that is slidably coupled to the upper upright of the lower upright, the lower end of the lower upright and the chassis pass the The first rotating joint is rotatably connected, and the upper end portion of the upper pole and the backrest rod are rotatably connected by the second rotating joint.

In some embodiments, the cross bracket includes at least one crossbar assembly including an outer rod and an inner rod slidably coupled to the outer rod in a left-right direction, the outer rod and the inner rod respectively And connecting the two side brackets; when the child dining chair is in the folded state, the outer rod and the inner rod are close to each other to bring the two side brackets closer to each other.

In some embodiments, the dinner tray is detachably coupled to the side bracket, and the meal tray is disengaged from the side bracket when the child dining chair is in the folded state.

In some embodiments, the dinner plate includes a left side of the dinner plate and a right side of the dinner plate that are slidable in the left-right direction, the left side of the dinner plate and the meal when the child dining chair is in the folded state The right side of the plate is close to each other.

 In some embodiments, the crossbar assembly comprises:

 a first crossbar assembly connected between the backrest bars of the side brackets;

 a second crossbar assembly coupled between the front brackets of the side brackets;

 A third crossbar assembly is coupled between the rear brackets of the side brackets.

 In combination with the above, the present invention adopts the above technical solutions, and has the following advantages compared with the prior art:

When the child dining chair of the present invention is folded, the second rotating joint is unlocked, and the backrest bar is turned down so that the backrest bar and the pole assembly are close to each other; the first rotating joint is unlocked, and the chassis is turned up to realize the backrest bar and the pole assembly Folding with the chassis; easy folding operation, the folded children's dining chair is small and easy to carry.

 DRAWINGS

In order to more clearly illustrate the technical solutions of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

 Figure 1 is a perspective view of a child dining chair according to the present invention at a certain angle of view, in which the seat cover is omitted;

 Figure 2 is a perspective view showing a child dining chair according to the present invention from another perspective;

 Figure 3 shows a side view of the children's dining chair shown in Figure 2;

 Figure 4 shows a side view of the child dining chair shown in Figure 2 after the seat is raised;

 Figure 5 is a perspective view of the child dining chair shown in Figure 1 after the folding of the dinner plate;

 Figure 6 is a side elevational view of the child dining chair of Figure 1 after the tray has been folded;

 Figure 7 is a perspective view showing the further folding of the children's dining chair shown in Figure 1;

 Figure 8 shows a side view of the child dining chair shown in Figure 1 after further folding;

 Figure 9 is a perspective view of the child dining chair of Figure 1 after the side bracket is folded;

 Figure 10 is a side elevational view of the child dining chair of Figure 1 after the side bracket is folded;

 Figure 11 is a front elevational view of the child dining chair of Figure 1 after the side brackets are folded;

 Figure 12 is a perspective view showing the child dining chair of Figure 1 in a folded state, wherein the dinner plate is removed;

 Figure 13 is a side elevational view of the child dining chair of Figure 1 in the folded configuration with the tray removed;

 Figure 14 is a front elevational view of the child dining chair of Figure 1 in a folded state with the tray removed;

 Figure 15 is a perspective view showing a first rotating joint according to the present invention;

 Figure 16 is an exploded perspective view showing a second rotating joint and a third rotating joint according to the present invention;

 Figure 17 is a cross-sectional view showing a second rotating joint and a third rotating joint according to the present invention;

 Figure 18 shows a cross-sectional view of a children's dining chair in accordance with the present invention;

 Figure 19 is a perspective view showing another child dining chair according to the present invention after the side bracket is folded;

 Figure 20 is a front elevational view of the child dining chair of Figure 19 after the side brackets are folded;

 Figure 21 is a perspective view showing the child dining chair shown in Figure 19 in a folded state;

 Fig. 22 is a front elevational view showing the child dining chair of Fig. 19 in a folded state.

 among them,

 11, the backrest bar; 12, the pole assembly; 121, the lower pole; 122, the upper pole; 123, the first connector; 13、seat pole; 131, second connecting piece; 132, third connecting piece; 14、linking rod; 15、front bracket; 16、rear bracket;

 21, the first crossbar assembly; 22, the second crossbar assembly; 23, the third crossbar assembly; 2a, the outer pole; 2b Inner rod

 31, dinner plate; 311, the left side of the plate; 312, the right side of the plate;

 4, seat cover;

 5, the first rotating joint; 51, the lower pole connecting piece; 52, the front bracket connecting piece; 53 , the rear bracket connecting piece; 54 First locking member; 501, first locking slot;

 6, the second rotating joint; 61, the backrest rod connecting member; 62, the first sliding block; 621, the first guiding inclined surface; 63 a second locking member; 631, a second locking portion; 632, a second locking groove; 64, an upper pole connecting member;

 7、the third rotating joint; 71、the third locking member; 711, the third locking portion; 712, the third locking groove; 72 , the second slider; 73, the plate connector;

 81, handle; 83, the first traction cable seat; 831, the first installation slot; 84, the second traction cable; 85 Second traction cable seat;

 91, first pivot; 92, second pivot; 93, third pivot; 94, fourth pivot; 95, fifth pivot; 96 The sixth pivot.

 Detailed ways

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings, in which the advantages and features of the invention can be more readily understood by those skilled in the art. It is to be noted that the description of the embodiments is intended to facilitate the understanding of the invention, but is not intended to limit the invention. Further, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

 The orientation words recited herein are defined in accordance with the conventional viewing angles of the orientation of the children's dining chair in an unfolded state by those skilled in the art.

 Example 1

 The embodiment provides a foldable children's dining chair having an unfolded state and a folded state. Refer to Figure 1-14 As shown, the children's dining chair includes two side brackets on the left and right sides, a cross bracket between the side brackets on both sides, and a dinner tray 31. Each of the side brackets includes a chassis, a pole assembly 12, and a backrest lever 11. The upper end portion of the chassis and the lower end portion of the upright assembly 12 are rotatably coupled by the first rotary joint 5, and the upper end portion of the upright assembly 12 and the lower end portion of the backrest rod 11 pass through the second rotary joint 6 Rotate the connection. A locking mechanism is provided in each of the first rotating joint 5 and the second rotating joint 6. Plate 31 and pole assembly 12, backrest rod 11 through the second rotating joint 6 described above The phase rotation connection; or, the tray 31 is rotatably connected to the pole assembly 12 or the backrest rod 11 via a third rotary joint 7. Specifically, in this embodiment, the tray 31 and the backrest rod 11 A third rotary joint 7 is rotatably connected, and a locking mechanism is also provided in the third rotary joint 7. When the child dining chair is in the unfolded state, the first rotating joint 5, the second rotating joint 6, and the third rotating joint 7 They are respectively locked by the respective locking mechanisms, and the tray 31, the underframe, the pole assembly 12 and the backrest rod 11 are relatively unfolded; when the child dining chair is in the folded state, the first rotating joint 5 and the second rotating joint 6 The third rotating joint 7 is unlocked, the plate 31 and the backrest 11 are close to each other, and the chassis, the pole assembly 12 and the backrest 11 are close to each other.

 The chassis includes a front bracket 15 and a rear bracket 16 that are relatively deployable or close together. The upper end of the front bracket 15 and/or the rear bracket 16 The upper end portion is rotatably coupled to the lower end portion of the upright assembly 12 via the first rotary joint 5 described above. Specifically, in the present embodiment, the upper end portion and the rear bracket 16 of the front bracket 15 of each side bracket 16 The upper end portion and the lower end portion of the upright assembly 12 are rotatably coupled by one of the first rotary joints 5. Preferably, the pole assembly 12, the front bracket 15, and the rear bracket 16 The lengths of the three are substantially equal, making the child's dining chair smaller in size after folding.

 The pole assembly 12 includes a lower pole 121, an upper pole 122 slidably coupled to the lower pole 121 in the up and down direction, and a lower pole The lower end portion of the 121 is rotatably coupled to the front bracket 15 and the rear bracket 16 via the first rotary joint 5, and the upper end portion of the upper pole 122 and the lower end portion of the backrest rod 11 pass through the second rotary joint 6 Rotate the connection. Specifically, the upper pole 122 is hollow, and the upper pole 122 is slidably disposed outside the lower pole 121 in the up and down direction, so that the pole assembly 12 can be extended up and down, and the tray can be adjusted. 31, height of the backrest lever 11, etc., can be adjusted from the low position shown in Figure 3 to the high position shown in Figure 4 for height adjustment.

 Each side bracket also includes a seat post 13 and a connecting rod 14, respectively. The seat post 13 extends generally in the front-rear direction, and the seat post 13 The upper pivot 122 of the upright assembly 12 is rotatably coupled by a first pivot 91 that can be adjusted in accordance with the expansion and contraction of the pole assembly 12. Connecting rod 14 Extending generally in the up and down direction, the upper end portion of the link 14 is rotatably coupled to the backrest lever 11 or the second pivot joint 6 via the second pivot 92 to be rotated by the backrest lever 11 when folded, the connecting rod The lower end portion of the 14 is rotatably coupled to the seat post 13 via a third pivot 93. Pole assembly 12, backrest bar 11, connecting rod 14 and seatpost 13 The four-bar linkage mechanism is configured to be relatively movable and close to each other. Specifically, as shown in FIGS. 1, 2, 5, and 7, the upper pole 122 has a first connecting member 123 that is bent forward from the body thereof, and the seat pole 13 has a second connecting member 131 extending downward from the body thereof, the front end portion of the first connecting member 123 and the lower end portion of the second connecting member 131 are rotatably connected by the first pivot 91; the seat post 13 There is a third connecting member 132 which is bent upwardly from the body thereof, and an upper end portion of the third connecting member 132 and a lower end portion of the connecting rod 14 are rotatably connected by the third pivot shaft 93. Third connector 132 Located at the rear of the second connecting member 131.

 A seat cover 4 is provided between the seat post 13 and the backrest bar 11 to carry the child, and the dinner plate 31 is located on the backrest bar 11 There is space between the front and the seat cover 4 to allow children to enter and exit.

 The child dining chair further includes a locking mechanism in the first rotary joint 5, a locking mechanism in the second rotary joint 6, and a third rotary joint 7 The inner locking mechanism interlocks the unlocked unlocking mechanism so that after one of the rotating joints is unlocked, the other two rotating joints are interlocked and unlocked. Referring to Figures 15-18, the embodiment further provides a specific first rotating joint 5. The second rotating joint 6, the third rotating joint 7, and the unlocking mechanism.

 As shown in FIG. 15, the first rotating joint 5 includes a lower pole connecting member 51 fixedly connected to the lower end portion of the lower pole 121, and a front bracket 15 The front bracket connecting member 52 fixedly connected at the upper end portion and the rear bracket connecting member 53 fixedly connected to the upper end portion of the rear bracket 16 , the lower pole connecting member 51 , the front bracket connecting member 52 , and the rear bracket connecting member 53 The three are rotated by the fourth pivot 94 phase so that the three can rotate relative to each other. As shown in Fig. 18, the first rotary joint 5 further includes a first locking member 54 that is movably disposed, and a lower vertical rod connecting member 51. A groove for inserting the first locking member 54 is respectively formed on the outer edge of the front bracket connecting member 52 and the rear bracket connecting member 53, and the first locking member 54 and the three said slots form the first rotating joint 5 The locking mechanism inside. When the child dining chair is in the unfolded state, the lower pole connector 51, the front bracket connector 52, and the rear bracket connector 53 Rotating relative to a position where the grooves on the three are coincident with each other, in which the grooves on the three are coincident to form a first lock groove 501, and the first locking member 54 is inserted into the first lock groove 501, thereby being first Rotating joint 5 Locking; when the child dining chair is in the folded state, the first locking member 54 is disengaged from the slot and the first rotating joint 5 is unlocked. Specifically, as shown in FIG. 18, the first locking member 54 is slidably disposed on the lower pole. 121, so that it can be separated from the first lock groove 501 up or down or inserted into the first lock groove 501.

 As shown in Fig. 16-18, the lower end portion of the backrest bar 11 is fixedly coupled to a backrest bar connecting member 61, which is connected to the backrest bar 61. As one of the components of the second rotary joint 6 and the third rotary joint 7, the second rotary joint 6 is located below the third rotary joint 7. The second rotating joint 6 is mainly composed of the backrest rod connecting member 61 And a first slider 62, a second locking member 63, and an upper pole connecting member 64. Wherein, the upper pole connecting member 64 and the pole assembly 12 (specifically, the upper pole 122 The upper end portion is fixedly coupled, and the lower portion of the backrest rod connecting member 61, the first slider 62, the second locking member 63, and the upper pole connecting member 64 are rotatably connected by the fifth pivot 95 in turn, the first slider 62 The second locking member 63 is slidably disposed along the axis line of the fifth pivot 95 in a space formed between the back link connecting member 61 and the upper upright connecting member 64. Second locking member 63 The outer edge has a plurality of second locking portions 631. The lower portion of the backrest rod connecting member 61 defines a second locking groove 632 that cooperates with the second locking portion 631. The upper pole connecting member 64 A lock groove is also formed on the second locking portion 631. The second locking portion 631 and the second locking groove 632 on the backrest rod connecting member 61 and the locking groove on the upper pole connecting member 64 form a second rotation. joint The locking mechanism inside 6. When the child dining chair is in the unfolded state, the second locking groove 632 of the backrest rod connecting member 61 and the locking groove on the upper vertical rod connecting member 64 respectively coincide with each other, and the plurality of second locking portions 631 are respectively overlapped. Correspondingly inserted therein, the backrest lever connecting member 61 and the upper upright connecting member 64 are not relatively rotatable to lock the second rotating joint 6; when the child dining chair is folded, the second locking portion 631 is disengaged from the second locking slot 632, the backrest rod connecting member 61 and the upper pole connecting member 64 are relatively rotatable, and the second rotating joint 6 is unlocked.

 As shown in Fig. 16-18, the third rotary joint 7 is mainly composed of the backrest rod connecting member 61 and the third locking member 71. The second slider 72 and the tray connector 73 are composed. Wherein, the tray connector 73 is connected to the tray 31, the backrest rod connecting member 61, the upper portion, the third locking member 71, and the second slider 72 The plate connector 73 is rotated by the sixth pivot 96 in sequence. The third locking member 71 and the second slider 72 are slidably disposed along the axis line of the sixth pivot 96 at the backrest rod connecting member 61. The upper part, the plate connector 73 is in the space between the two. The outer edge of the third locking member 71 has a plurality of tooth-shaped third locking portions 711, and the upper portion of the backrest rod connecting member 61 is opened and the third locking portion 711 The mating third lock slot 712, the tray connector 73 is also provided with a lock groove that cooperates with the third lock portion 711, and the third lock portion 711 and the third lock groove 712 on the backrest link 61 The lock groove on the plate connector 73 forms a locking mechanism in the third rotary joint 7. When the child dining chair is in the unfolded state, the third lock slot 712 on the backrest lever connector 61, the tray connector 73 The upper locking grooves respectively correspond to the coincidence, and the plurality of third locking portions 711 correspond to the insertion therein, and the backrest rod connecting member 61 and the tray connecting member 73 are not relatively rotatable, thereby the third rotating joint 7 When the child dining chair is folded, the third locking portion 711 is disengaged from the locking groove on the tray connecting member 73, and the backrest rod connecting member 61 and the tray connecting member 73 are relatively rotatable, and the third rotating joint 7 Was unlocked.

 As shown in Figure 16-18, the unlocking mechanism is mainly composed of a handle 81, a first traction cable (not shown), and a first traction cable holder 83. And a second traction cable 84, a second traction cable seat 85 and a third traction cable (not shown). Wherein, the handle 81 is slidably disposed on the tray connector 73 and partially located on the tray connector 73. The lower end of the first traction cable is fixedly connected to the handle 81, and the other end is fixedly connected to the second slider 72; the second slider 72 is disposed on the tray connector 73 and the third locking member 71. Between the two sides of the tray connector 73 has a second guiding slope that is in contact with the second slider 72. The second slider 72 acts under the second guiding slope as the second slider 72 rotates. At the same time, it slides along the sixth pivot 96, and the third locking member 71 is pushed toward the backrest link 61 until the third locking portion 711 is disengaged from the lock groove on the tray connector 73, and the third rotary joint 7 When unlocked, the plate 31 can be brought closer to the backrest bar; the first traction cable seat 83 is disposed in the third rotating joint 7 and can rotate with the plate connecting member 73, and the backrest bar connecting member 61 The upper portion has a first mounting groove 831 for accommodating the first traction cable holder 83. The first mounting groove 831 has an arc shape, and the first traction cable holder 83 is movably disposed on the first mounting groove 831 to be able to rotate around the sixth pivot. 96 moves along the circumference; the upper end of the second traction cable 84 is fixedly connected to the first traction cable seat 83, the lower end is fixedly connected to the first slider 62; the first slider 62 is rotated by the second traction cable 84, the first slider 62 is disposed between the backrest rod connecting member 61 and the second locking member 63. The one side surface of the backrest rod connecting member 61 has a first guiding inclined surface 621 which is in contact with the first sliding block 62, along with the first sliding block 62. Rotating, the first slider 62 slides along the fifth pivot 95 while being actuated by the first guiding ramp 621, and the second locking member 63 is then pushed to the upper pole connecting member 64 until the second locking portion 631 Disengaged from the second lock groove 632, the second rotary joint 6 is unlocked, and the backrest rod 11 can be brought close to the upright assembly 12; the second traction cable seat 85 is disposed in the second rotary joint 6 and can be connected with the backrest rod 61 Rotating, backrest rod connector 61 The lower portion has a second mounting groove for receiving the second traction cable seat 85, and the second traction cable seat 85 is provided at the second mounting groove to enable the backrest rod connecting member 61. Rotating; the upper end of the third traction cable is fixedly connected to the second traction cable seat 85, and the lower end is fixedly connected to the first locking member 54.

 Next, the first rotating joint 5, the second rotating joint 6, and the third rotating joint 7 are passed through the above unlocking structure. The process of interlocking unlocking is described as follows: pulling the handle 81, the first traction cable drives the second slider 72 to rotate to push the third locking member 71 to slide toward the backrest rod connecting member 61 to the third locking portion 711 Disengaged from the lock groove on the plate connector 73, the locking action between the plate connector 73 and the backrest link 61 is disabled, the third rotary joint 7 is unlocked, and the tray connector 73 Rotation with respect to the backrest lever; the first traction cable holder 83 rotates with the tray connector 73, and the second traction cable 84 drives the first slider 62 to rotate to push the second locking member 63 toward the upper pole connector 64 Sliding until the second locking portion 631 is disengaged from the second locking groove 632, the locking action between the backrest lever connecting member 61 and the upper upright connecting member 64 is disabled, the second rotating joint 6 is unlocked, and the backrest lever connecting member 61 Rotating relative to the upper pole connecting member 64; the second traction cable seat 85 rotates with the backrest rod connecting member 61, and the third pulling cable drives the first locking member 54 to move upward, thereby disengaging from the first locking groove 501, the first rotating joint 5 Unlocked, front bracket connector 52, rear bracket connector 53 Rotate relative to lower pole connector 51.

 It should also be noted that the first pivot 91, the second pivot 92, the third pivot 93, the fourth pivot 94, and the fifth pivot The axis lines of the 95 and the sixth pivot 96 are parallel to each other and preferably extend in the left and right direction, as shown in FIG. The axial centers of the first pivots 91 of the two side brackets coincide, and the second pivots of the two side brackets 92 The axes of the axes coincide, the axes of the third pivots 93 of the two side brackets coincide, the axes of the fourth pivots 94 of the two side brackets coincide, and the fifth pivot of the two side brackets 95 The axis lines of the axes coincide, and the axis lines of the sixth pivot 96 of the two side brackets coincide, so that the volume of the child dining chair in the folded state is further reduced. In the above four-bar linkage mechanism, the upper end portion of the connecting rod 14 specifically passes through the second pivot shaft 92 is pivotally coupled to the backrest link 61 of the second rotary joint 6, that is, the link 14 and the backrest bar can be passed through the backrest link 61. Indirect rotation connection, you can also directly rotate the connection. The fifth pivot 95 is located at the front lower side of the second pivot 92, and the first pivot 91 is located at the front lower side of the third pivot 93.

 The cross bracket includes a plurality of crossbar assemblies that are laterally foldable or telescopic, such as a first crossbar assembly 21, a second crossbar assembly 22, and a third crossbar assembly twenty three . Specifically, in the embodiment, each of the crossbar assemblies includes an outer rod 2a and an inner rod 2b slidably coupled to the outer rod 2a in the left-right direction, the outer rod 2a and the inner rod 2b. One of them is connected to the left side bracket and the other is connected to the right side bracket. As shown in Figures 2 and 5, the outer rod 2a is slidably fitted to the inner rod 2b in the left-right direction. Up, so that it can be folded laterally in the left and right direction. Preferably, the crossbar assembly specifically includes a first crossbar assembly 21 connected between the upper ends of the backrest bars 11 on the left and right sides, and a front bracket 15 connected to the left and right sides. A second crossbar assembly 22 between the lower portions and a third crossbar assembly 23 coupled between the left and right rear brackets 16. Wherein, in the first crossbar assembly 21, the inner rod 2b and the left side backrest rod 11 The connection, the outer rod 2a and the right backrest rod 11 are connected; in the second crossbar assembly 22, the outer rod 2a is connected to the left front bracket 15, the inner rod 2b and the right front bracket 15 Connection; in the third crossbar assembly 23, the inner rod 2b is connected to the left rear bracket 16, the outer rod 2a and the right rear bracket 16 Connected. It should be noted that, in a preferred embodiment, the lengths of the outer rods 2a of the cross bar assemblies are the same, the lengths of the inner rods 2b are the same, and the distance between the side backrest bars 11 after the lateral folding, the front bracket 15 The spacing between the spacers and the rear brackets 16 is the same, and the folded children's dining chair is more regular and further reduced in volume.

 The tray 31 is detachably connected to the tray connector 73 of the third rotary joint 7, so that the tray 31 can be connected to the tray 73 Release to allow the children's dining chair to fold laterally.

 The folding principle of the children's dining chair of this embodiment is as follows:

 In the unfolded state shown in Figs. 1-4, the first rotating joint 5, the second rotating joint 6, and the third rotating joint 7 are locked, and the upright assembly 12, the backrest rod 11, the connecting rod 14 and the seat rod 13 are relatively unfolded, and the front bracket 15 and the rear bracket 16 are also relatively unfolded, and the dinner plate 31 is connected to the tray connecting member 7332. Above and generally at the level;

 When the folding starts, the pulling handle 81 is pulled to unlock the third rotating joint 7, the second rotating joint 6, and the first rotating joint 5, the plate 31 Flip up and back until it is close to the backrest bar 11, as shown in Figures 5 and 6;

 The plate 31 and the backrest bar 11 are turned backwards downward, and as the backrest bar 11 rotates, the link 14 drives the seat post 13 Following the rotation, the front end of the seat post 13 is upward and the rear end is downward until the front end portion of the seat post 13, the upper end portion of the link 14 and the upright assembly 12, and the lower end portion of the backrest lever 11 are brought together and the seat post 13 is held. The rear end portion, the connecting rod 14 and the lower end portion of the pole assembly 12, and the upper end portion of the backrest rod 11 are close together, as shown in Figs. 7 and 8;

 Both the front bracket 15 and the rear bracket 16 are turned forward to the lower end and the pole assembly 12 The upper end portion is close together, and the side brackets on both sides complete the folding in the up-and-down direction and the front-rear direction, as shown in Figure 9-11;

 Subsequently, the tray 31 is removed from the tray connector 7332 to be disengaged from the side bracket; the left bracket is pushed to the right and / Or pushing the right bracket to the left side, so that the first rail assembly 21, the second rail assembly 22, and the inner rod 2b of the third rail assembly 23 are received in the outer rod 2a. In the middle, the two side brackets are brought close to each other to complete the folding in the left and right direction, and the children's dining chair is in a folded state as shown in Fig. 12-14.

 The child dining chair according to the invention has a compact size after being folded; can be unlocked by linkage, and is convenient to fold; the height of the dining chair is adjustable and convenient to use.

 Example 2

 This embodiment is basically the same as Embodiment 1, and is different from Embodiment 1 only in that the dinner plate 31 includes a plate connector 73 on both sides and on both sides. The left side of the fixedly connected plate 311 and the right side of the plate 312, and the left side of the plate 311 are slidably coupled to the right side of the plate 312 in the left and right direction so that the left side of the plate 311 and the right side of the plate 312 They are able to move closer to each other, so that when folded in the lateral direction, it is possible to perform lateral folding without removing the plate 31. Specifically, as shown in Figure 15-18, the left side of the plate 311 can be slidably inserted in the right and left direction of the plate 312. Inside, when the children's dining chair is in the folded state, the left side portion 311 of the serving plate is received in the right portion 312 of the serving plate.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and are preferred embodiments for those skilled in the art to understand the present invention and implement the present invention, and the scope of the present invention is not limited thereto. .

Claims (18)

1. A child dining chair comprising at least two side brackets, a cross bracket disposed between the side brackets, and a dinner plate, wherein each of the side brackets comprises a bottom frame, a pole assembly and a backrest rod, respectively The upper end portion of the chassis and the lower end portion of the pole assembly are rotatably connected by a first rotating joint, and the upper end portion of the pole assembly is rotatably connected by a second rotating joint and a lower end portion of the backrest rod; a locking mechanism is respectively disposed in the first rotating joint and the second rotating joint;

   The child dining chair has an unfolded state and a folded state. When in the unfolded state, the first rotating joint and the second rotating joint are locked, and the underframe, the pole assembly and the backrest rod are relatively unfolded; in the folded state, The first rotating joint and the second rotating joint are unlocked, and the bottom frame, the pole assembly and the backrest rod are close to each other.
2. A children's dining chair according to claim 1 wherein said chassis includes front and rear brackets that are relatively deployable or close together, the upper end of said front bracket and/or the upper end of said rear bracket and The lower end portion of the pole assembly is rotatably connected by the first rotating joint, the child dining chair is in a folded state, and the front bracket, the rear bracket, the pole assembly and the backrest lever are close to each other.
3. A children's dining chair according to claim 2, wherein said first pivot joint includes a lower upright link fixedly coupled to a lower end portion of said upright assembly, and a front portion fixedly coupled to an upper end portion of said front bracket a bracket connecting member and a rear bracket connecting member fixedly connected to the upper end portion of the rear bracket, wherein the lower pole connecting member, the front bracket connecting member and the rear bracket connecting member are pivotally connected by a fourth pivot .
4. The children's dining chair according to claim 3, wherein the first rotating joint further comprises a first locking member that is movably disposed, the lower pole connecting member, the front bracket connecting member, and the rear bracket connecting member a groove for inserting the first locking member is respectively formed on the edge; when the child dining chair is in an unfolded state, the grooves on the lower pole connecting piece, the front bracket connecting piece and the rear bracket connecting piece overlap each other Forming a first lock groove, the first lock member is inserted into the first lock groove to lock the first rotary joint; when the child dining chair is in a folded state, the first lock member is disengaged Said slot.
5. The children's dining chair according to claim 1, wherein the child dining chair further comprises an unlocking mechanism capable of interlocking the locking mechanism in the first rotating joint and the locking mechanism in the second rotating joint .
6. The children's dining chair according to claim 1, wherein the dinner plate is rotatably coupled to the upright lever assembly and the backrest lever via the second rotary joint; or the dinner tray and the tray The pole assembly or the backrest rod is rotatably coupled by a third rotating joint.
7. The child dining chair according to claim 6, wherein the dinner plate and the backrest bar are rotatably connected by a third rotating joint, and the third rotating joint is provided with a locking mechanism, the child dining chair Also included is an unlocking mechanism capable of interlocking the locking mechanism in the first rotating joint, the locking mechanism in the second rotating joint, and the locking mechanism in the third rotating joint.
8. A children's dining chair according to claim 7, wherein said second pivot joint comprises a backrest lever connector, a first slider, a second locking member, and an upright lever connector, said backrest lever connector and The lower end portion of the backrest bar is fixedly connected, the upper pole connecting member and the upper end portion of the pole assembly are fixedly connected; the backrest rod connecting member, the first sliding rod, the second locking member and the upper pole connecting The pieces are rotatably connected by a fifth pivotal phase, and the first slider and the second locking member are slidably disposed on the backrest bar connector and the upper pole along an axis line of the fifth pivot Between the connecting members; the outer edge of the second locking member has a second locking portion with a tooth shape, and the backrest rod connecting member and the upper pole connecting member are respectively respectively provided with the second locking portion a lock slot; when the child dining chair is in an unfolded state, the lock grooves on the backrest bar connector and the upper pole link are correspondingly coincident to insert the second lock portion therein, the second The rotating joint is locked; when the child dining chair is folded, the first The second locking portion is disengaged from the locking groove on the backrest bar connector or on the upper pole connecting member, and the second rotating joint is unlocked.
9. A children's dining chair according to claim 8, wherein said third rotary joint comprises said backrest link and a third locking member, a second slider, a tray connector, said tray connector The backrest bar connector, the third locking member, the second slider, and the tray connector are sequentially rotatably connected by a sixth pivot, and the third locking member and the second slider are Slidably disposed along the axis line of the sixth pivot between the backrest bar connector and the tray connector; the outer edge of the third locking member has a toothed third locking portion, the backrest a lock groove matched with the third locking portion is respectively disposed on the rod connecting member and the plate connecting member; and a lock on the backrest bar connecting member and the plate connecting member when the child dining chair is in the unfolded state The slots are correspondingly coincident to insert the third locking portion therein, the third rotating joint is locked; when the child dining chair is folded, the third locking portion is disengaged from the upper portion of the backrest bar connector or the plate connector The upper locking joint is unlocked.
10. The children's dining chair according to claim 9, wherein the unlocking mechanism comprises:

    a handle that is slidably disposed on the plate connector;

    a first traction cable, one end is fixedly connected to the handle, the other end is fixedly connected to the second slider, and the second slider is disposed between the tray connector and the third locking member. a side surface of the dinner plate connector having a second guiding slope in contact with the second slider to slide the second slider along the sixth pivot to push the third locking member Disengaging the lock groove on the tray connector, the third rotating joint is unlocked;

    a first traction cable seat rotatably disposed in the third rotating joint along with the tray connector;

    a second traction cable, one end of which is fixedly connected to the first traction cable seat, the other end is fixedly connected to the first sliding block, and the first sliding block is disposed between the backrest bar connecting piece and the second locking piece a side surface of the backrest bar connector has a first guiding slope that is in contact with the first slider to slide the first slider along the fifth pivot to push the second The locking member is disengaged from the locking groove on the backrest bar connector, and the second rotating joint is unlocked;

    a second traction cable seat rotatably disposed in the second rotating joint with the backrest bar connector;

    The third traction cable has one end fixedly connected to the second traction cable seat, and the other end fixedly connected to the first rotating joint to pull the first rotating joint to unlock.
11. A children's dining chair according to claim 1, wherein each of said side brackets further includes a seat post and a link, said seat bar being rotatably coupled to said upright assembly by a first pivot. An upper end portion of the connecting rod is rotatably coupled to the backrest lever or the second rotating joint via a second pivot, and a lower end portion of the connecting rod is rotatably coupled to the seat post via a third pivot The pole assembly, the backrest lever, the link, and the seat post form a four-bar linkage to be relatively deployable or close to each other.
12. The children's dining chair according to claim 11, wherein in the unfolded state, the upright assembly has a first connecting member that is bent forwardly, the seat post having a downward bend a second connecting member that is extended, a front end portion of the first connecting member and a lower end portion of the second connecting member are rotatably connected by the first pivot; and/or the seat post has an upward bending An extended third connecting member, the upper end portion of the third connecting member and the lower end portion of the connecting rod are rotatably connected by the third pivot.
13. The children's dining chair according to claim 11 or 12, wherein the axis lines of the first pivot, the second pivot, and the third pivot are parallel to each other.
14. A children's dining chair according to claim 1, wherein said upright assembly comprises a lower upright, an upper pole slidably coupled to said lower upright in an up and down direction, and a lower end of said lower upright And the bottom frame is rotatably connected by the first rotating joint, and an upper end portion of the upper pole and the backrest rod are rotatably connected by the second rotating joint.
15. A children's dining chair according to claim 1 wherein said transverse bracket includes at least one crossbar assembly, said crossbar assembly including an outer stem and an inner stem slidably coupled to said outer stem in a left-right direction The outer rod and the inner rod are respectively connected to the two side brackets; when the child dining chair is in the folded state, the outer rod and the inner rod are close to each other to bring the two side brackets closer to each other.
16. A children's dining chair according to claim 15, wherein said dinner plate is detachably coupled to said side bracket, said dinner tray and said side bracket when said child dining chair is in said folded state Get rid of.
17. A children's dining chair according to claim 15, wherein said dinner plate includes a left side of the dinner plate and a right side of the dinner plate which are slidable in the left-right direction, and said child dining chair is in said folded state The left side of the dinner plate and the right side of the dinner plate are close to each other.
18. A children's dining chair according to any one of claims 15-17, wherein the crossbar assembly comprises:

    a first crossbar assembly connected between the backrest bars of the side brackets;

    a second crossbar assembly coupled between the front brackets of the side brackets;

    A third crossbar assembly is coupled between the rear brackets of the side brackets.