CN220518073U - Cushion thickness-width linkage adjusting mechanism - Google Patents

Abstract

The utility model discloses a cushion thickness-width linkage adjusting mechanism, which comprises a cushion body, wherein the cushion body comprises two panels which are arranged in a right-over way, a compression guide mechanism is connected between the two panels, and the two panels are relatively close to or far away from each other under the restraint of the compression guide mechanism; a thickness reset piece is arranged between the two panels and drives the two panels to be far away from each other; two expansion wing plates are further arranged on the outer side of any panel, the two expansion wing plates are distributed along the left-right direction of the pad body, the two expansion wing plates are respectively assembled with the pad body in a sliding mode along the left-right direction of the pad body, and the two expansion wing plates are respectively connected with the guide main body and are synchronously linked with the guide main body. The cushion body used as the backrest function has the remarkable effects that when the cushion body is subjected to leaning pressure of passengers, the cushion body can automatically compress the thickness of the cushion body and synchronously expand the supporting area of the cushion body, so that extremely convenient use experience is provided for users.

Description

Cushion thickness-width linkage adjusting mechanism

Technical Field

The utility model relates to a child safety seat, in particular to a child safety heightening pad.

Background

The automobile safety belt is designed according to the height and the body shape of an adult, and the automobile safety belt can be used by children only with the height of more than 1.4m (about 12 years old) due to the height. For this purpose, the child safety seats of Group23 are commercially available, usually for children aged 3-12 years, which are converted into child seats by adding the child seats to the original adult seats. The child safety seat has the main purpose of raising the sitting position of the child and avoiding the seat belt from tying the neck and the abdominal cavity. The Group23 child safety seats come in a variety of forms, generally classified as highback booster seats, low back booster cushions, and single base booster cushions, wherein:

the high back heightening seat is provided with a headrest and side wings besides a heightening cushion for lifting the riding position of the child, the opposite sides of the high back heightening seat are bumped with better protection effects, and the product is authenticated by i-Size, so that the high back heightening seat has higher safety and riding comfort; but the price is more expensive, the weight (about 8-9 Kg) and the volume of the product are larger, and the occupied space in the vehicle is more; especially, the disassembly and assembly switching between the adult riding position and the child riding position are time-consuming and labor-consuming.

The product of the low back heightening pad is relatively light (about 5 Kg), comprises the heightening pad for lifting the riding position of children and the lumbar support, thus having certain comfort, smaller volume, less occupied space in a vehicle and relatively low price; but it does not have side protection and i-Size authentication. And the short back heightening pad also occupies an adult seat after being installed, so that the disassembly and assembly switching between the adult seat and the child seat are time-consuming and labor-consuming.

The single-base heightening pad is very light (2-3 Kg), and the main body of the single-base heightening pad is a heightening pad for lifting the sitting position of a child and is connected with a car seat through a standard interface; the single-base heightening pad has the advantages of smaller volume, less occupied space in the vehicle and very low price; but it also does not have side protection and i-Size authentication, and is less comfortable without lumbar support. For the position of the single-base heightening pad, the higher riding position is lifted, so that the adult riding is inconvenient, and the single-base heightening pad needs to be disassembled and assembled when the adult riding position and the child riding position are switched.

According to analysis of the above 3 types of child safety seats, it is easy to see that the existing child safety seats have the technical problem that after the child safety seats are formed by occupying adult sitting positions, quick and simple switching between the two sitting positions cannot be performed; it is obvious that solving this technical problem is a long-standing actual demand in the market.

For the single-base booster pad therein, the technical feasibility of rapidly switching it between the adult-sized seating position and the child-sized seating position is relatively higher because of its relatively simple structure in three child seats. In the prior art, the foldable high-back heightening seat is provided, and the cushion part of the seat can be folded relative to the backrest in a turnover way, so that the seat can be conveniently stored. The overturning and folding of the cushion part provides a reference for the rapid switching of the heightening cushion with a single base.

Researchers want to adopt a similar method to turn over the heightening pad to be abutted against the backrest of the automobile self-seat to form an adult sitting position, and the heightening pad is converted into a waist support at the moment, so that the automobile seat at the corresponding position forms a child sitting position or an adult sitting position; however, the simple heightened pad turnover switching scheme still faces at least the following technical problems:

(1) the thickness of the heightening pad is generally thicker, so that the thickness of the heightening pad is larger when the heightening pad is directly turned over and switched to be used as a waist support of an adult, and the back of the adult is occupied by the space, so that the thickness of the heightening pad (waist support) at the moment is required to be adaptively adjusted;

(2) the width of the heightening pad is relatively narrow, the supporting area of the heightening pad for the passengers is fixed when the heightening pad is directly turned and switched to be used as an adult waist support, and the supporting area required for the back/waist is different due to the difference of the individual statures of the passengers, so that the heightening pad cannot meet the depending requirement of part of the statures of the robust passengers.

(3) When the heightening pad is turned over and switched to be used as the child safety seat cushion, the thickness adjusted in the point (1) is recovered and maintained so that the heightening pad can effectively support the child to sit.

When the above technical problems (1) and (2) are further solved, a vertically placed lumbar support (or called a back cushion, a lumbar cushion or other names) is formed on the form of the heightening pad, and if the thickness adjustment and the width adjustment of the lumbar support are performed in two independent steps, the basic requirements of users can be met, but the simplification of the operation steps and the improvement of the user experience are still insufficient.

In view of this, it is necessary to link the thickness adjusting step and the width adjusting step of the lumbar support so that the passenger can automatically reduce the thickness and increase the width in response to the leaning pressure after leaning on the lumbar support.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a cushion with linkage of thickness adjustment and support area adjustment, which adopts the following main technical scheme:

a back cushion thickness-width linkage adjusting mechanism is characterized in that: the cushion comprises a cushion body, wherein the cushion body comprises two panels which are arranged opposite to each other, and a compression guide mechanism is connected between the two panels;

the compression guide mechanism comprises a guide main body and a guide movable part, the guide main body and the guide movable part are respectively connected with two panels, and the two panels are relatively close to or far away from each other under the constraint of the compression guide mechanism;

two expansion wing plates are further arranged on the outer side of any panel, the two expansion wing plates are distributed along the left-right direction of the cushion body, and the two expansion wing plates are respectively assembled with the cushion body in a sliding manner along the left-right direction of the cushion body;

the two expansion wing plates are respectively connected with the guide main body and synchronously linked with the guide main body;

when the two panels are close to each other, the two expansion wing plates synchronously expand outwards;

when the two panels are far away from each other, the two expansion wing plates are synchronously recovered.

The technical scheme has the advantages that the leaning panel is used for applying pressure to the leaning panel when a passenger sits, and the thickness of the back cushion is regulated under the combined action of the pressure and the reverse restoring force provided by the thickness resetting piece, so that the invasion of the back space of the adult passenger is reduced; on the other hand, the back of the passenger can be provided with elastic supporting sense. The expansion wing plate is linked with the guide main body so as to expand outwards along with the thickness reduction of the back cushion and recover along with the thickness increase of the back cushion, and the expansion wing plate does not need to be independently regulated, so that the back cushion has the advantage of convenience.

Drawings

FIG. 1 is a schematic illustration of a child safety booster pad connected to a car seat and in a horizontal position;

FIG. 2 is a schematic illustration of a child safety booster pad connected to a car seat and in a vertical position;

FIG. 3 is a schematic view of the appearance of the child safety booster pad when flipped to a horizontal position;

FIG. 4 is a schematic view of the appearance of the child safety booster pad in a flipped up to a vertical position;

FIG. 5 is a schematic cross-sectional view of a child safety booster pad;

fig. 6 is a schematic diagram showing a connection relationship between the flip lock mechanism 20 and the horizontal flip shaft 11;

fig. 7 is a schematic diagram showing the correspondence between the thickness locking mechanism 40 and the guide movable portion 32;

fig. 8 is a schematic perspective view of the guide movable portion 32;

fig. 9 is a schematic diagram showing the mating relationship of two synchronizing gears 33;

fig. 10 is a schematic view of the state after the expansion wing plate 15 is expanded laterally outwards;

FIG. 11 is a schematic view showing the connection relationship of the transverse connection steel bars 18 with the inner race constraint plates 16;

fig. 12 is a schematic view showing the hooking relationship between the seat cushion panel 13 and the lateral connecting steel rod 18;

fig. 13 is a schematic view of the structure when the unlock-flip linkage 60 of the structure (1) is flipped to a horizontal state;

fig. 14 is a schematic view of the structure of the unlock-flip linkage 60 of the structure (1) flipped to the vertical state;

fig. 15 is a schematic view of the structure when the unlock-flip linkage 60 of the structure (2) is flipped to a horizontal state;

fig. 16 is a schematic view of the structure when the unlock-flip linkage 60 of the structure (2) is flipped to the vertical state;

fig. 17 is a schematic diagram of the structure when the unlock-flip linkage 60 of the structure (3) is flipped to a horizontal state;

fig. 18 is a schematic view of the structure of the unlock-flip linkage 60 of the structure (2) flipped to the vertical state;

fig. 19 is a schematic view of the structure when the unlock-flip linkage 60 of the structure (4) is flipped to a horizontal state;

fig. 20 is a schematic view of the structure of the unlock-flip linkage 60 of the structure (2) flipped to the vertical state;

fig. 21 is a schematic view of the structure when the unlock-flip linkage 60 of the structure (5) is flipped to a horizontal state;

fig. 22 is a schematic diagram of the structure when the unlock-flip linkage 60 of the structure (2) is flipped to the vertical state.

Detailed Description

The utility model is further described below with reference to examples and figures.

A cushion thickness-width linkage adjusting mechanism comprises a cushion body, wherein the cushion body can be a simple waist support, a cushion, a waist cushion and the like, and has only a single back supporting and abutting function;

the cushion body can also be formed after the seat cushion is turned over, the state of the cushion body can be switched into a waist support, a back cushion and a waist cushion, and also can be switched into the seat cushion, and the cushion body (the waist support, the back cushion or the waist cushion) at the moment is equal to the seat cushion, and the cushion body and the waist cushion are just different names of the same feature under two states (riding or leaning).

As shown in fig. 1-12, the cushion body is shown as a schematic structure when the cushion body can be used as a waist support (back cushion/waist cushion) and a seat cushion.

Taking a seat cushion as a child safety heightening cushion as an example: when the seat cushion is in a horizontal state, the heightening cushion forms a seat cushion for children to sit, and the seat cushion is mainly used for children to sit; when in the vertical state, the heightening pad forms a back cushion (waist support), the position is mainly used for taking an adult, the back of the adult can lean against the back cushion, and the child safety heightening pad is equal to the pad body.

The following defines the front, rear, left, right, up and down directions based on the state when the child safety booster cushion is installed in the car seat and is in a horizontal state to form a seat cushion;

the child safety heightening pad comprises a heightening pad body 10, wherein a horizontal overturning shaft 11 is arranged at the rear part of the heightening pad body 10 along the left-right direction of the heightening pad body, the horizontal overturning shaft 11 is rotatably assembled with the heightening pad body 10, and child seat standard connecting pieces 12 are respectively fixed at two ends of the horizontal overturning shaft 11; wherein the child seat standard connector 12 is adapted to connect with a child safety seat standard interface (e.g., isofix interface, latch interface) provided on the vehicle seat.

When the heightening pad body 10 is connected with a standard interface of a self-contained child safety seat on an automobile seat through the standard connector 12 of the child seat, the horizontal overturning shaft 11 is limited by the standard connector 12 of the child seat and keeps a relatively fixed state, at the moment, the heightening pad body 10 can be overturned to a horizontal state and a vertical state around the horizontal overturning shaft 11,

when the heightening pad body 10 is in a horizontal state, a child safety seat cushion is formed;

when the height-increasing pad body 10 is in a vertical state, a waist support (also referred to as a lumbar support, a back cushion, a backrest, a lumbar cushion, etc.) is formed.

When the booster pad body 10 is in a vertical state, there is a problem in that a height is insufficient easily, affecting comfort and support stability by which an adult depends. The height of the heightening pad body 10 is required to be a certain height when the heightening pad body is turned to a vertical state, and one specific embodiment is as follows: the horizontal overturning shaft 11 is close to the upper part of the heightening pad body 10, the standard connecting piece 12 is L-shaped, one arm of the standard connecting piece is vertically arranged, one arm of the standard connecting piece is horizontally arranged, and the corner part of the standard connecting piece 12 is used for being attached to the seat cushion of the automobile seat. By the arrangement, the horizontal overturning shaft 11 can be close to the backrest of the automobile seat and keep a certain height, so that the thickness of the heightening pad body 10 can be accumulated to be overturned, and the heightening pad body 10 overturned to a vertical state has a certain initial height, thereby effectively supporting the back/waist of an adult and improving the leaning comfort.

In order to adjust the thickness of the heightening pad body 10 (after being turned to a vertical state), the heightening pad body 10 comprises two panels which are arranged opposite to each other, a compression guide mechanism 30 is connected between the two panels, and when an external force is applied to the panels, the two panels are restrained by the compression guide mechanism 30 to relatively stably approach or separate; the two panels differ in that: one panel is a seat cushion panel 13, the other panel is a waist support panel 14, and the seat cushion panel 13 is positioned right above the waist support panel 14; it is clearly apparent that there are various ways of applying external force to the two panels, the most straightforward and simple way being for the user to apply manual force, for example, when the occupant leans against the lumbar support panel 14, the lumbar support panel 14 will naturally be adjacent to the seat cushion panel 13 and thus reduce in thickness.

An embodiment of the compression guide mechanism 30 is: the compression guide mechanism 30 comprises a guide main body 31 and a guide movable part 32, and the guide main body 31 and the guide movable part 32 are respectively connected to the two panels;

a further embodiment is: the guiding main body 31 includes two guiding connecting rods 3b, the guiding movable portion 32 includes two guiding sliding blocks 3a, the two guiding sliding blocks 3a are respectively slidably assembled on the inner side of the waist support panel 14 along the left-right direction of the heightening pad body 10, the two guiding sliding blocks 3a are distributed on the same straight line along the left-right direction of the heightening pad body 10, the two guiding sliding blocks 3a are in one-to-one correspondence with the two guiding connecting rods 3b, the upper ends of the two guiding connecting rods 3b are close to each other, the lower ends of the two guiding connecting rods 3b are far away from each other, the two guiding connecting rods 3b are arranged in an eight shape, the lower ends of the guiding connecting rods 3b are hinged with the corresponding guiding sliding blocks 3a, and the upper ends of the guiding connecting rods 3b are hinged with the inner side of the seat cushion panel 13.

In order to improve the rotation stability of the two guide links 3b and ensure the movement stability of the seat cushion panel 13 and the lumbar support panel 14, the compression guide mechanism 30 further includes two stabilizing links 34, the two stabilizing links 34 are in one-to-one correspondence with the two guide links 3b, the upper ends of the stabilizing links 34 are hinged with the corresponding guide links 3b, and the lower ends of the stabilizing links 34 are hinged with the inner sides of the lumbar support panel 14.

After the stabilizing connecting rod 34 is added, the rotation stability of the guide connecting rod 3b can be improved to a greater extent to ensure the movement stability of the seat cushion panel 13 and the waist support panel 14, but the rotation of the two guide connecting rods 3b is not completely synchronous, so that the seat cushion panel 13 can be respectively twisted around the two guide connecting rods 3b, and the movement stability of the seat cushion panel 13 and the waist support panel 14 is further not high; as a further preferred embodiment, a link synchronous rotation assembly is thus also connected between the two guide links 3b, which acts on and rotates the two guide links 3b synchronously.

One embodiment of the connecting rod synchronous rotation assembly is as follows: the connecting rod synchronous rotation assembly comprises two mutually meshed synchronous gears 33, the synchronous gears 33 are fixed at the hinged ends of the stabilizing connecting rods 34 and the corresponding panels, the two synchronous gears 33 are in one-to-one correspondence with the two guide connecting rods 3b, the synchronous gears 33 are in rotary connection with the corresponding guide connecting rods 3b, and specifically, the synchronous gears 33 are fixed at the lower ends of the stabilizing connecting rods 34. The above-mentioned synchronizing gear 33 does not refer to a certain gear, nor to a complete gear, and the synchronizing gear 33 may be a single gear.

When the booster pad body 10 is turned to the horizontal and vertical state, the thickness of the booster pad body 10 needs to be locked after recovery (e.g., manual recovery). A corresponding unlocking/locking means is thus required, in particular: a thickness locking mechanism 40 acting on the compression guide mechanism 30 is provided in the booster pad body 10, and the thickness locking mechanism 40 controls the movement or stop of the guide movable portion 32 (specifically, the guide slider 3 a);

the thickness locking mechanism 40 may be configured in a variety of ways, and one particular way may be: the thickness locking mechanism 40 comprises a lock 41 and a lock 42, the lock 41 is slidably assembled in the heightening pad body 10 along the front-back direction of the heightening pad body 10, the lock 42 is arranged on the guiding movable part 32, the lock 41 moves towards the lock 42 to control the guiding movable part 32 to lock and stop moving, and the lock 41 moves away from the lock 42 to control the guiding movable part 32 to unlock and move. The lock 41 may be a lock pin, and the lock 42 may be a lock hole located on the guiding movable portion 32, whereas the lock 41 may be a lock plate with a lock hole, and the lock 42 may be a lock pin located on the guiding movable portion 32.

The thickness locking mechanism 40 may be installed at a plurality of positions of the booster pad body 10, and one installation position may be located at the front of the booster pad body 10 and in front of the guiding movable portion 32, and the lock 41 may be close to the lock 42 when sliding towards the rear of the booster pad body 10; another mounting position may be in the middle or rear of the booster pad body 10 and behind the guide movable portion 32, where the lock 41 approaches the lock 42 when sliding toward the front of the booster pad body 10.

When the distance between the two panels needs to be recovered, the thickness resetting piece 50 can be arranged between the two panels, and when the compression force applied to the two panels by the thickness resetting piece 50 is smaller than the restoring force applied to the two panels by the thickness resetting piece 50, the thickness resetting piece 50 can drive the two panels to be far away from each other.

The thickness restoring member 50 may be an electric restoring member (e.g., an electric push rod, etc.), or may be an elastic restoring member (e.g., a compression spring, a torsion spring, a tension spring), taking an elastic restoring member as an example:

the thickness resetting piece 50 is either a compression spring, and the compression spring acts on the two panels to enable the two panels to have a mutual distance trend;

the thickness restoring member 50 is either a torsion spring which acts on the stabilizer link 34 and/or the guide link 3b so as to have a tendency to automatically swivel;

the thickness restoring member 50 is either a tension spring which acts on the two stabilizing links 34 and/or the two guide links 3b so that they have a tendency to swivel automatically.

The above control (locking/unlocking) of the guiding movable portion 32 and the turning control of the booster pad body 10 require the locking/unlocking step of the guiding movable portion 32 to be performed before/after the user turns over the booster pad body 10 if two independent processes are provided, and the above steps are performed sequentially, which is easy to cause misoperation of the user and poor in experience; in order to provide a very convenient experience for the user, an unlock-flip linkage 60 is also provided between the thickness lock mechanism 40 and the horizontal flip shaft 11;

when the height-increasing pad body 10 is turned around the horizontal turning shaft 11 to a horizontal state, the unlocking-turning linkage mechanism 60 controls the thickness locking mechanism 40 to release the control of the guiding movable part 32, so that the guiding movable part 32 is unlocked;

when the height-increasing pad body 10 is turned around the horizontal turning shaft 11 to a vertical state, the unlocking-turning linkage mechanism 60 controls the thickness locking mechanism 40 to resume the control of the guiding movable portion 32, so that the guiding movable portion 32 is locked.

The unlocking-turning linkage mechanism 60 has the characteristic of having a linkage point thereon, which approaches or separates from the horizontal turning shaft 11 along with the forward and reverse bidirectional rotation of the heightening pad body 10; and the thickness locking mechanism 40, specifically the lock 41, is interlocked with the interlocking point.

The unlocking-turning linkage mechanism 60 has five examples of the following structures (1) -5:

structure (1): as shown in fig. 13 and 14, the unlock-flip linkage 60 includes a cam 61 and a cam abutment 62, wherein the contour of the cam 61 abuts against the cam abutment 62, and the abutment position of the contour of the cam 61 and the cam abutment 62 forms the linkage point.

When the structure (1) is applied to the above child safety booster pad:

the connection mode is as follows: the cam 61 is fixed to the horizontal turning shaft 11, and the cam abutting portion 62 is fixed to the lock head 41; at this time, the top of the cam 61 faces the front of the booster pad body 10, and when the booster pad body 10 is turned to a horizontal state, the top of the cam 61 pushes the lock 41 to move toward the lock 42 and enables the guide movable portion 32 (specifically, the guide slider 3 a) to stop sliding; when the heightening pad body 10 is turned to a vertical state, the lock 41 can fall under the gravity so as to be far away from the lock 42; of course, an elastic pushing piece 62a may be added to assist the lock 41 to slide downward, and at this time, the elastic pushing piece 62a acts on the cam abutting portion 62 or the lock 41 to make it always fit with the contour line of the cam 61; the cam abutment 62 may be externally applied or may be formed as a part of the lock cylinder 41.

Another connection mode is: the cam 61 is rotatably assembled to the lock 41, the cam abutting portion 62 is fixed to the horizontal turning shaft 11, and during the turning process of the heightening pad body 10, different portions of the outer contour of the cam 61 abut against the cam abutting portion 62, so that the function of driving the lock 41 can be also achieved; when the booster pad body 10 is turned to a horizontal state, the top of the cam 61 is in contact with the cam abutment 62; when the heightening pad body 10 is turned to a vertical state, the cam 61 and the lock 41 can also slide down by self weight; at this time, an elastic pushing member 62a may be added to assist the sliding down of the cam 61 and the lock 41, and the cam abutting portion 62 may be added or formed as a part of the horizontal turning shaft 11.

Structure (2): as shown in fig. 15 and 16, the unlock-turn linkage mechanism 60 includes a linkage guide plate 63 and a limit portion 64, wherein a linkage guide groove 63a is provided on the linkage guide plate 63, one end of the linkage guide groove 63a is close to the horizontal turning shaft 11, the other end of the linkage guide groove 63a is far away from the horizontal turning shaft 11, a portion between two ends of the linkage guide groove 63a is preferably a natural transition, the limit portion 64 is constrained by the linkage guide groove 63a and moves along the linkage guide groove 63a, and a connection point between the limit portion 64 and the linkage guide groove 63a forms the linkage point;

a more specific embodiment is: the limiting part 64 is a limiting rod, the limiting rod is fixedly connected with the lock 41, and the linkage guide plate 63 is fixed with the outer wall of the horizontal turning shaft 11.

When the structure (2) is applied to the above child safety booster pad:

the two ends of the linkage guide groove 63a are corresponding to the horizontal/vertical states of the heightened pad body 10, namely, the horizontal state is locked and the vertical state is unlocked.

Structure (3): as shown in fig. 17 and 18, the unlock-flip linkage 60 includes at least one; a linkage connecting rod 65, wherein one end of the linkage connecting rod 65 is hinged with the outer wall of the horizontal overturning shaft 11, and the other end of the linkage connecting rod 65 is hinged with the lock 41;

the joint of the linkage link 65 and the lock 41 forms the linkage point.

When the structure (3) is applied to the above child safety booster pad:

because the rotation center of the linkage connecting rod 65 is different from that of the heightening pad body 10, the distance between the linkage point and the horizontal turning shaft 11 can be changed by designing the connection position and the size of the linkage connecting rod 65, thereby playing a role in locking/unlocking; i.e. locked in horizontal state and unlocked in vertical state.

Structure (4): as shown in fig. 19 and 20, the unlocking-turning linkage mechanism 60 includes a pull wire 66 and a lock return spring 67, the tail of the pull wire 66 is fixed on the outer wall of the horizontal turning shaft 11, the head of the pull wire 66 is fixedly connected with the lock 41, and the pull wire 66 is wound and unwound along with the bidirectional rotation of the heightening pad body 10;

the lock return spring 67 either acts on the lock 41 to make it have a tendency to approach/separate from the horizontal turning shaft 11;

the lock head return spring 67 or the head portion acting on the wire 66 so as to have a tendency to drive the lock head 41 toward/away from the horizontal turning shaft 11;

when the stay wire 66 is wound up, it pulls the lock 41 away from/close to the horizontal turning shaft 11;

when the stay wire 66 pays off, the lock head return spring 67 drives the lock head 41 to be far away from/close to the horizontal overturning shaft 11;

the connection position of the stay wire 66 and the lock 41 forms the linkage point.

When the structure (4) is applied to the above child safety booster pad:

the matching relation between the length of the stay wire 66 and the lock head return spring 67 is designed; the principle is the same as that of a brake cable/inhaul cable with a rebound function (such as a bicycle brake cable, an accelerator brake cable and the like), and the description is omitted here.

Structure (5): as shown in fig. 21 and 22, the unlock-flip linkage 60 includes a first magnetic pole 68 provided on the lock 41, and two second magnetic poles 69 provided on the horizontal flip shaft 11, the two second magnetic poles 69 being circumferentially distributed around the horizontal flip shaft 11, the first magnetic pole 68 being attracted to one of the second magnetic poles 69, the first magnetic pole 68 being repelled from the other of the second magnetic poles 69; the outer end face/point of the first pole 68 forms the linkage point.

When the structure (5) is applied to the above child safety booster pad:

one second magnetic pole 69 is in a horizontal state toward the front of the seat, and one second magnetic pole 69 is in a vertical state toward the upper of the seat; the more preferable scheme is as follows: the second magnetic pole 69 in the horizontal state repels the first magnetic pole 68, and the second magnetic pole 69 in the vertical state attracts the first magnetic pole 68.

In order to raise the supporting area of the waist support panel 14 for adults, two expansion wing plates 15 are further arranged on the outer side of the waist support panel 14, the two expansion wing plates 15 are distributed along the left-right direction of the heightening pad body 10, and the two expansion wing plates 15 are respectively assembled with the heightening pad body 10 in a sliding manner along the left-right direction; the two expansion wings 15 can be pulled out manually.

In order to further enhance the user experience, two expansion wings 15 may be respectively connected to the guiding body 31 and synchronously linked therewith; so that when the two panels are close to each other, the two expansion wing plates 15 expand synchronously; when the two panels are far away from each other, the two expansion wing plates 15 are synchronously recovered.

The waist support panel 14 is provided with two corresponding strip-shaped yielding notches, the two strip-shaped yielding notches are in one-to-one correspondence with the two guide sliding blocks 3a, the guide sliding blocks 3a extend from the inner side of the waist support panel 14 to the outer side of the waist support panel 14 through the strip-shaped yielding notches, the two expansion wing plates 15 are in one-to-one correspondence with the two guide sliding blocks 3a, and the expansion wing plates 15 are connected with the corresponding guide sliding blocks 3a to be linked with the corresponding guide sliding blocks 3 a.

The outer side of the waist support panel 14 corresponds to two expansion wing plates 15, wing plate accommodating areas are respectively arranged, the expansion wing plates 15 fall into the corresponding accommodating areas after being retracted, the strip-shaped yielding notches correspond to the accommodating areas one by one, and the strip-shaped yielding notches are arranged in the corresponding accommodating areas along the left-right direction of the waist support panel 14.

The heightening pad body 10 is internally provided with a turnover locking mechanism 20 acting on the horizontal turnover shaft 11, and the turnover locking mechanism 20 is used for controlling the rotation of the horizontal turnover shaft 11 and the heightening pad body 10 to stop, so that the heightening pad body 10 can be kept in a horizontal or vertical state. The structure of the flip-lock mechanism 20 may be: the turnover locking mechanism 20 comprises a locking rod 21 slidingly assembled along the front-back direction of the heightening pad body 10, a turnover locking hole is formed in the horizontal turnover shaft 11, one end of the locking rod 21 is connected with the turnover locking hole in a plug-in mode, and the other end of the locking rod 21 extends to the outside of the heightening pad body 10 so as to be convenient to operate.

The periphery of the seat cushion panel 13 is provided with a circle of upper coaming extending downwards, the seat cushion panel 13 and the upper coaming form an upper box body with an opening facing downwards, the periphery of the waist support panel 14 is provided with a circle of lower coaming extending upwards, and the waist support panel 14 and the lower coaming form a lower box body with an opening facing upwards; the lower box body is embedded into the upper box body.

One specific construction form of the upper coaming plate can be as follows: the upper coaming comprises an inner ring constraint plate 16 and an outer ring shaping plate 17, the inner ring constraint plate 16 is vertically arranged, and the inner ring constraint plate 16 comprises at least two sides and can also be of a three-side and four-side annular structure; the outer ring shaping plate 17 is mainly determined according to the design requirement, the outer wall of the lower coaming is close to the inner wall of the inner ring constraint plate 16, and the outer ring shaping plate 17 is located at the outer side of the inner ring constraint plate 16 and connected with the inner ring constraint plate 16. One specific connection mode of the outer ring molding plate 17 and the inner ring restraining plate 16 is as follows: the lower edge of the outer ring shaping plate 17 is connected with the lower edge of the inner ring restraining plate 16, and the upper portion of the outer ring shaping plate 17 is gradually far away from the inner ring restraining plate 16.

The inside two horizontal connecting steel bars 18 that are equipped with of inner circle restraint board 16, two horizontal connecting steel bars 18 are followed increase the fore-and-aft direction of pad body 10 distributes, horizontal connecting steel bars 18 is followed increase the left and right sides of pad body 10 and arrange, horizontal connecting steel bars 18 both ends respectively with the inner wall fixed connection of inner circle restraint board 16 the lower surface of seatpad panel 13 corresponds every horizontal connecting steel bars 18 is equipped with panel couple 19 respectively, and all the orientation of panel couple 19 is unanimous (for example forward or backward), panel couple 19 from the below with horizontal connecting steel bars 18 strain, seatpad panel 13 with inner circle restraint board 16 fixed connection. By adopting the design scheme, the inner ring constraint plate 16 does not need to be provided with a plurality of connection installation positions for installing the seat cushion panels 13, and the panel hooks 19 and the transverse connection steel bars 18 are matched and tensioned to realize stable connection of the seat cushion panels 13, so that related installation and connection structures are simplified; the cushion panel 13 is ensured not to be empty and generate riding suspension feeling and abnormal sound in the long-time use process.

The further simplified installation scheme is: protruding connection steps are provided on the inner wall of the inner race restraining plate 16 corresponding to each end portion of the lateral connection steel bar 18, respectively, and the connection is simultaneously connected and fixed with the seat cushion panel 13 and the lateral connection steel bar 18 by bolts.

The cushion body used as the backrest function has the beneficial effects that the cushion body can automatically compress the thickness of the cushion body and synchronously expand the supporting area of the cushion body when the cushion body is subjected to the leaning pressure of passengers, so that extremely convenient use experience is provided for users.

Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (10)

1. A cushion thickness-width linkage adjustment mechanism is characterized in that: the cushion comprises a cushion body, wherein the cushion body comprises two panels which are arranged opposite to each other, and a compression guide mechanism (30) is connected between the two panels;

the compression guide mechanism (30) comprises a guide main body (31) and a guide movable part (32), wherein the guide main body (31) and the guide movable part (32) are respectively connected to two panels, and the two panels are relatively close to or far away from each other under the constraint of the compression guide mechanism (30);

two expansion wing plates (15) are further arranged on the outer side of any panel, the two expansion wing plates (15) are distributed along the left-right direction of the pad body, and the two expansion wing plates (15) are respectively assembled with the pad body in a sliding manner along the left-right direction of the pad body;

the two expansion wing plates (15) are respectively connected with the guide main body (31) and synchronously linked with the guide main body;

when the two panels are close to each other, the two expansion wing plates (15) synchronously expand outwards;

when the two panels are far away from each other, the two expansion wing plates (15) are synchronously recovered.

2. The cushion thickness-width linkage adjustment mechanism according to claim 1, wherein: the guide main body (31) comprises two guide connecting rods (3 b), the guide movable part (32) comprises two guide sliding blocks (3 a), the two guide sliding blocks (3 a) are respectively arranged on the inner sides of the corresponding panels in a sliding mode along the left-right direction of the pad body, the two guide sliding blocks (3 a) are distributed along the left-right direction of the pad body, the two guide sliding blocks (3 a) are in one-to-one correspondence with the two guide connecting rods, one end of the guide connecting rod (3 b) is hinged to the corresponding guide sliding blocks (3 a), and the other end of the guide connecting rod (3 b) is hinged to the inner sides of the opposite panels.

3. The cushion thickness-width linkage adjustment mechanism according to claim 2, wherein: a connecting rod synchronous rotating assembly is further arranged between the two guide connecting rods (3 b);

the connecting rod synchronous rotation assembly comprises two mutually meshed synchronous gears (33), the two synchronous gears (33) are in one-to-one correspondence with the two guide connecting rods (3 b), and the synchronous gears (33) are in rotary connection with the corresponding guide connecting rods (3 b).

4. The cushion thickness-width linkage adjustment mechanism according to claim 3, wherein: the compression guide mechanism (30) further comprises two stabilizing connecting rods (34), the two stabilizing connecting rods (34) are in one-to-one correspondence with the two guide connecting rods (3 b), one end of each stabilizing connecting rod (34) is hinged with the corresponding guide connecting rod (3 b), the other end of each stabilizing connecting rod (34) is hinged with the inner side of the panel provided with the guide sliding block (3 a), and the synchronous gear (33) is fixed at the hinged end of each stabilizing connecting rod (34) corresponding to the panel.

5. The cushion thickness-width linkage adjustment mechanism according to claim 1, wherein: a thickness resetting piece (50) is further arranged between the two panels, and the thickness resetting piece (50) has a trend of driving the two panels to be away from each other;

the two panels are relatively close to or far away under the combined action of the external force and the thickness resetting piece (50);

the thickness resetting piece (50) is either a compression spring;

the thickness reset piece (50) is a torsion spring;

the thickness resetting piece (50) is a tension spring.

6. The cushion thickness-width linkage adjustment mechanism according to claim 2, 3 or 4, wherein: the panel that is equipped with in the slip is equipped with guide slider (3 a) is equipped with two bar breach of stepping down, two bar breach of stepping down with two guide slider (3 a) one-to-one, guide slider (3 a) are through corresponding bar breach of stepping down stretches to the outside of corresponding panel, two expand pterygoid lamina (15) with two guide slider (3 a) one-to-one, expand pterygoid lamina (15) with corresponding guide slider (3 a) is connected.

7. The cushion thickness-width linkage adjustment mechanism according to claim 6, wherein: two expansion wing plates (15) are respectively arranged on the outer side faces of the corresponding panels, the expansion wing plates (15) fall into the corresponding accommodating areas after being retracted, the strip-shaped yielding notches are in one-to-one correspondence with the accommodating areas, and the strip-shaped yielding notches are arranged in the corresponding accommodating areas along the left-right direction of the pad body.

8. The cushion thickness-width linkage adjustment mechanism according to claim 1 or 2 or 3 or 4, wherein: a thickness lock mechanism (40) acting on the compression guide mechanism (30) is provided in the pad body, and the thickness lock mechanism (40) controls the movement of the guide movable portion (32) or stops the movement.

9. The cushion thickness-width linkage adjustment mechanism of claim 8, wherein: the thickness locking mechanism (40) comprises a lock head (41) and a lock (42), the lock head (41) is assembled in the pad body in a sliding mode, the lock (42) is arranged on the guide movable portion (32), the lock head (41) moves towards the lock (42) to control the guide movable portion (32) to lock and stop moving, and the lock head (41) moves away from the lock (42) to control the guide movable portion (32) to unlock and move.

10. The cushion thickness-width linkage adjustment mechanism according to claim 1 or 2 or 3 or 4, wherein: a horizontal turnover shaft (11) is arranged on the cushion body along the left-right direction of the cushion body, the horizontal turnover shaft (11) is assembled with the cushion body in a rotating way, and two ends of the horizontal turnover shaft (11) are fixedly provided with child seat standard connectors (12);

a turnover locking mechanism (20) acting on the horizontal turnover shaft (11) is arranged in the pad body, and the turnover locking mechanism (20) is used for controlling the rotation of the horizontal turnover shaft (11) and the pad body to stop rotating;

the turnover locking mechanism (20) comprises a locking rod (21) which is slidably assembled with the pad body, a turnover locking hole is formed in the horizontal turnover shaft (11), and one end of the locking rod (21) is connected with the turnover locking hole in a plug-in mode.