CN114468673A

CN114468673A - Easy-to-disassemble combined child seat

Info

Publication number: CN114468673A
Application number: CN202210230442.XA
Authority: CN
Inventors: 王宇昊; 黄勇; 涂礼阳
Original assignee: Anhui Hongbei Intelligent Technology Co ltd
Current assignee: Anhui Hongbei Intelligent Technology Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-05-13
Anticipated expiration: 2042-03-10
Also published as: CN114468673B

Abstract

The invention discloses a conveniently-disassembled combined child seat, which relates to the technical field of vehicle-mounted appliances, and comprises a seat and a seat body, wherein an adjusting mechanism for adjusting the inclination angle of the seat body is arranged on the seat, and the adjusting mechanism comprises: the chair body is movably connected to the chair seat through the connecting component; the invention relates to a combined child seat, which comprises a seat body, a seat cushion, a deflection angle control assembly and a control mechanism, wherein the seat cushion is provided with a seat, the deflection angle control assembly comprises a worm which is rotatably connected to the seat cushion, the worm is meshed with an arc rack fixed on the seat body, so that the inclination angle of the seat body on the seat cushion is controlled.

Description

Easy-to-disassemble combined child seat

Technical Field

The invention relates to the technical field of vehicle-mounted appliances, in particular to a conveniently-disassembled combined child seat.

Background

With the increasing importance of child riding safety, it is mandatory to equip children's safety seats in vehicles for children under 12 years old, and various types of easy-to-detach combination type child seats are emerging in the market.

The prior Chinese patent publication number is as follows: CN104627037B, entitled "child safety seat for automobile", which comprises "a base and a seat body; a telescopic fixed rod is arranged on the base; a rotary adjusting mechanism for adjusting the rotating angle of the base is arranged in the base; the bottom of the chair body is provided with an inclination angle adjusting mechanism for adjusting the inclination angle of the chair body and an adjustable headrest arranged on the chair body; the rotary adjusting mechanism comprises a rotary disk and a locking buckle which are arranged in the base; the inclination angle adjusting mechanism comprises a supporting frame arranged on the rotating disc and an angle adjuster arranged at the bottom of the chair body; can 360 degrees rotations and fix on four positions all around, can adjust the inclination of chair body simultaneously and increase the comfort level when children take, can adapt to the requirement of taking of the children of older age span and different heights ".

In actual use, because the clothes and the chair body of the child or the long road section of the automobile running have the slope inclination angle, the optimal sitting inclination angle of the child can be influenced when the child actually sits, in the prior art, when the inclination adjustment is carried out on the chair body of the detachable combined child seat, the deflection of the chair body can only be limited on a fixed angle, for example, on fixed included angles of 30 degrees, 45 degrees, 60 degrees and the like, the selection range during the angle fixation is limited, and the adjustment condition can not be met.

Disclosure of Invention

The invention aims to provide a conveniently-disassembled combined child seat, which solves the defects in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a just, tear combination formula child seat open, includes seat support and chair body, install the adjustment mechanism who is used for adjusting chair body inclination on the seat support, adjustment mechanism includes:

the chair body is movably connected to the chair seat through the connecting component;

and the deflection angle control assembly comprises a worm rotatably connected to the seat, and the worm is meshed with an arc rack fixed on the chair body so as to control the inclination angle of the chair body on the seat.

Preferably, the connecting assembly comprises two side plates fixed on two sides of the seat respectively, and the chair bodies of the side plates are rotatably connected through a shaft column.

Preferably, the top of seat support is seted up and is held the chamber that holds chair body bottom, the chamber of placing of worm is seted up to the bottom that holds the chamber.

Preferably, a shaft rod penetrates through the end part of the worm, and a knob block is fixed at one end of the shaft rod, which extends out of the outer side of the chair seat.

Preferably, a cylindrical cavity is formed in the worm, a spiral strip is fixed on the inner wall of the cylindrical cavity, and an elastic deformation unit fixed on the shaft rod is arranged in the cylindrical cavity.

Preferably, the elastic deformation unit comprises a cylindrical block fixed with the shaft rod, a plurality of inserting holes are formed in the side face of the cylindrical block, movable columns are inserted into the inserting holes, and inserting ends of the movable columns are connected with the inner bottom of the inserting holes through first springs.

Preferably, the extending end of each movable column is provided with an inclined plane part towards one side of the spiral strip.

Preferably, a limiting disc is fixed on the shaft rod.

Preferably, the circle center of the arc rack coincides with the shaft column.

Preferably, an electronic horizontal display is fixed on the chair body.

In the technical scheme, the connecting assembly and the deflection angle control assembly are arranged between the seat and the seat body, and the worm capable of generating worm and gear motion with the arc rack is adjusted, so that the selection range of the easy-to-detach combined child seat when the angle is fixed is enlarged, namely the seat body can be locked at any inclination angle, the angle adjusting requirements under more conditions are met, the effects of stopping adjustment and immediately locking are realized in the adjusting process, unlocking can be realized when the adjustment is needed, and the adjusting steps are simplified.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a side view of a removable modular child seat of the present invention;

FIG. 2 is a cross-sectional view of the chair seat of FIG. 1;

FIG. 3 is a schematic view of a worm in a normal position of the child seat with the easy-to-detach combination of the present invention;

FIG. 4 is an enlarged view of the invention at A in FIG. 3;

FIG. 5 is an enlarged view of the present invention at B in FIG. 3;

fig. 6 is a schematic view of the worm in the slow-stop position of the easy-to-detach combined child seat according to the invention.

Description of reference numerals:

1. a chair seat; 1.1, an accommodating cavity; 1.2, placing a cavity; 2. a chair body; 2.1, an electronic level display; 3. a connecting assembly; 3.1, side plates; 3.2, a shaft column; 4. a declination control assembly; 4.1, a worm; 4.2, arc racks; 4.3, shaft lever; 4.31, a limiting disc; 4.4, a knob block; 4.5, a cylindrical cavity; 4.6, spiral strips; 4.7, an elastic deformation unit; 4.71, a cylindrical block; 4.72, inserting holes; 4.73, a movable column; 4.74, a first spring; 4.75, a bevel part; 8. a buckle unit; 8.1, mounting a plate; 8.2, a clamping groove; 8.3, inserting a column; 8.4, a sleeve; 8.5 and a second spring.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 6, an easy-to-detach combined child seat provided in an embodiment of the present invention includes a seat 1 and a seat body 2, wherein an adjusting mechanism for adjusting an inclination angle of the seat body 2 is installed on the seat 1, and the adjusting mechanism includes:

the chair body 2 is movably connected to the chair seat 1 through the connecting component 3;

and the deflection angle control assembly 4 comprises a worm 4.1 which is rotatably connected to the seat 1, and the worm 4.1 is meshed with an arc rack 4.2 fixed on the chair body 2, so that the inclination angle of the chair body 2 on the seat 1 is controlled.

Concretely, coupling assembling 3 is including being located 1 both sides of seat support and the semicircle board of fixing mutually with chair body 2, arc orbit groove has been seted up to one side that seat support 1 is close to in the semicircle board, the interior slip fit of arc orbit groove has the gyro wheel of rotating the installation with the semicircle board, thereby make chair body 2 can take place the slope for seat support 1, worm 4.1 and arc rack 4.2 all are located between seat support 1 and the chair body 2, the contour track line coincidence when arc line of arc rack 4.2 and the 2 slope deflections of chair body, worm 4.1 rotates with seat support 1 to be connected, arc rack 4.2 includes the arc board, the outer arc limit of arc board has been seted up a plurality of tooth's sockets that can take place the meshing with worm 4.1.

In the in-service use process, produce drive power to arc rack 4.2 when worm 4.1 takes place to rotate, chair body 2 takes place to deflect along the arc orbit groove through the gyro wheel this moment, when worm 4.1 stall, the meshing between worm 4.1 and the arc rack 4.2 plays the locking action to the deflection of chair body 2 this moment, whole process operation is simple, the selection scope when just tearing combination formula children's seat open when the angle is fixed has been improved, satisfy the angle regulation demand under more the circumstances, and realized the stop adjustment in accommodation process, lock immediately, can the effect of unblock when needing the regulation, the regulation step has been simplified.

As a preferred technical solution of this embodiment, the connecting assembly 3 includes two side plates 3.1 respectively fixed to two sides of the seat 1, a plate contour of each side plate 3.1 is triangular, a top end of each side plate 3.1 extends out of a cushion plate of the seat 1, and the seat bodies 2 of the side plates 3.1 are rotatably connected by a shaft post 3.2, so that the seat bodies 2 can tilt and deflect on the seat 1, a deflection direction of the seat bodies 2 is a front deflection of the seat bodies 2, specifically, a deflection range of the seat bodies 2 is 90 degrees, the seat bodies 2 have two positions, which are respectively an upright position and a lying position, wherein when the seat bodies 2 are in the upright position, an included angle between a back surface of a child and a stress direction is 90 degrees, at this time, the child and the stress area are largest, which is beneficial to reducing damage to the child caused by inertia, and when the seat bodies 2 are in the lying position, an included angle between a backrest of the seat 2 and a horizontal plane is 0 degree, the position of the chair body 2 between the upright position and the flat position is a reclining position, preferably, when the chair body 2 is in the reclining position, an included angle between a chair back of the chair body 2 and a horizontal plane is 45 degrees, further, when the chair body 2 is deflected from the reclining position to the upright position, the chair back end of the chair body 2 is a forward end, and when the chair body 2 is deflected from the upright position to the reclining position, the chair cushion end of the chair body 2 is a forward end, it should be specially mentioned that, when the chair body 2 is in the upright position, the included angle between the chair back of the chair body 2 and the horizontal plane is 90 degrees.

As the preferred technical scheme of this embodiment, the top of the chair seat 1 is provided with a containing cavity 1.1 for containing the bottom of the chair body 2, the bottom of the chair body 2 is a semi-spherical bottom, the cavity of the containing cavity 1.1 is a semi-spherical cavity matched with the bottom of the chair body 2, the containing cavity 1.1 is provided with a plurality of supporting wheels contacted with the bottom of the chair body 2, the wheel body of each supporting wheel plays a role in supporting the bottom of the chair body 2, the bottom of the containing cavity 1.1 is provided with a placing cavity 1.2 for placing the worm 4.1, the placing cavity 1.2 is a rectangular cavity, the central point of the cavity of the placing cavity 1.2 is coincided with the central point of the bottom of the containing cavity 1.1, the arc rack 4.2 is fixed with the bottom of the chair body 2, the circle center of the arc rack 4.2 is coincided with the circle center of the semi-spherical bottom of the chair body 2, the axis of the worm 4.1 is parallel to the length direction of the placing cavity 1.2, the rod length value of the worm 4.1 is one third of the length value, the axle center of the axle column 3.2 coincides with the circle center of the arc rack 4.2, and in practical use, the arc rack 4.2 and the chair body 2 deflect by rotating the worm 4.1, so that the function of stepless adjustment and deflection of the chair body 2 on the chair seat 1 is achieved.

As the preferred technical scheme of this embodiment, the end of the worm 4.1 is fixed with the shaft lever 4.3, the shaft lever 4.3 is a whole complete rod body, the axial lead of the shaft lever 4.3 coincides with the axial lead of the worm 4.1, one end of the shaft lever 4.3 is rotatably connected with the placing cavity 1.2, the other end of the shaft lever 4.3 movably penetrates through the outer side of the seat 1, the end of the shaft lever 4.3 extending out of the outer side of the seat 1 is fixed with the knob block 4.4, and in the actual use process, the knob block 4.4 is twisted to enable the shaft lever 4.3 to drive the worm 4.1 to rotate.

As the preferred technical scheme of this embodiment, a cylindrical cavity 4.5 is opened in the worm 4.1, the worm 4.1 is connected with the shaft lever 4.3 through a fastening unit 8, a fixed connection function is realized between the worm 4.1 and the shaft lever 4.3, the shaft lever 4.3 drives the rotation of the worm 4.1, the contour line in the cross section of the cylindrical cavity 4.5 is circular, the axial lead of the cylindrical cavity 4.5 is coincident with the axial lead of the worm 4.1, a spiral strip 4.6 is fixed on the inner wall of the cylindrical cavity 4.5, the linear distance value from the head end of the spiral strip 4.6 to the tail end of the spiral strip 4.6 is the same as the distance value between the two ends of the cylindrical cavity 4.5, the spiral strip 4.6 is a hard strip, the thread pitch between the spiral strips 4.6 is the same, the contour line of the orthographic projection of the spiral strip 4.6 in the end direction is circular, the strip 4.6 protrudes out of the inner wall of the cylindrical cavity 4.5, the spiral strip 4.6 has the same spiral structure as the spring, the spiral strip 4.6 can not deform when being extruded by external force in any direction, the spiral strip 4.6 is a rigid part, the thread pitch value on the spiral strip 4.6 is the same as that on the worm 4.1, or the thread pitch value on the spiral strip 4.6 is corresponding to that on the worm 4.1 in a fixed proportional relation.

Be equipped with in the cylindrical cavity 4.5 and be fixed in the elastic deformation unit 4.7 on axostylus axostyle 4.3, when the ascending relative movement in the axis direction of cylindrical cavity 4.5 took place for elastic deformation unit 4.7, elastic deformation unit 4.7 collides with helical strip 4.6 this moment, elastic deformation unit 4.7 takes place elastic deformation this moment to form the resistance when the axial displacement that worm 4.1 took place along axostylus axostyle 4.3, wherein elastic deformation unit 4.7 is optional for a plurality ofly, and is preferred, elastic deformation unit 4.7's quantity is three.

As a preferable technical solution of this embodiment, the elastically deforming unit 4.7 includes a cylindrical block 4.71 fixed to the shaft rod 4.3, an axial line of the cylindrical block 4.71 coincides with an axial line of the shaft rod 4.3, a plurality of insertion holes 4.72 are formed in a side surface of the cylindrical block 4.71, a movable post 4.73 is inserted into each insertion hole 4.72, an axial line of the movable post 4.73 is perpendicular to the axial line of the shaft rod 4.3, an insertion end of the movable post 4.73 is connected to an inner bottom of the insertion hole 4.72 through a first spring 4.74, a slant portion 4.75 is formed on a side of an extending end of each movable post 4.73 facing the spiral strip 4.6, in actual use, when the elastically deforming unit 4.7 and the spiral strip 4.6 move toward each other, the slant portion 4.75 presses against the spiral strip 4.6 until the movable post 4.73 deforms the first spring 4.74, at this time, the movable post 4.73 retracts into the insertion hole 4.72, and the movable post and separates from the spiral strip 4.6, the movable column 4.73 protrudes out of the inserting hole 4.72 again, and further, the cross sections of the movable column 4.73 and the inserting hole 4.72 are rectangular, so that the movable column 4.73 is prevented from being pivoted in the inserting hole 4.72.

It should be further noted that the end of the worm 4.1 close to the knob block 4.4 is a right end, the end of the worm 4.1 far from the knob block 4.4 is a left end, the worm 4.1 has two positions in the placing cavity 1.2, which are respectively a normal position when the right end of the worm 4.1 is attached to the placing cavity 1.2 and a slow-down position when the left end of the worm 4.1 is attached to the placing cavity 1.2, when the worm 4.1 is at the normal position, the worm 4.1 is driven by the shaft lever 4.3, the worm 4.1 rotates synchronously with the shaft lever 4.3, that is, the knob block 4.4 is twisted to make the shaft lever 4.3 drive the worm 4.1 to rotate, so as to perform the function of stepless adjustment and deflection on the chair body 2 on the chair seat 1, when the worm 4.1 is at the slow-down position, the buckle unit 8 is in a failure state, at this time, the worm 4.1 and the worm 4.3 keep rotating synchronously, the shaft lever 4.3 does not fail any more, at this time, the movable post 4.73 now slides along the helical strip 4.6, so that the worm 4.1 moves along the shaft 4.3 until the connection between the worm 4.1 and the shaft 4.3 is made by means of the snap-in unit 8.

In actual normal use, for example, when the seat body 2 faces away from the vehicle running direction, the worm 4.1 is in a normal position, the shaft lever 4.3 drives the worm 4.1 to rotate by twisting the knob block 4.4, so that the seat body 2 is subjected to stepless deflection adjustment on the seat 1, when the vehicle runs in a collision, under the action of inertia force, the worm 4.1 moves from the normal position to a stop-slow position, and meanwhile, the seat body 2 is rapidly changed from a lying position or a reclining position to an upright position, so that impact injury caused by inertia is reduced for children;

wherein, when the worm 4.1 moves from the normal position to the slow stop position, the elastic deformation unit 4.7 collides with the spiral strip 4.6, and at the moment, the elastic deformation unit 4.7 elastically deforms, so that resistance is formed when the worm 4.1 axially moves along the shaft lever 4.3, further, an elastic buffer which is movably sleeved on the shaft lever 4.3 is arranged between the left end of the worm 4.1 and the placing cavity 1.2, the elastic buffer is such as a spring part and an elastic air cushion, and the buffer effect of the worm 4.1 in the process of moving from the normal position to the slow stop position is improved, in addition, when the worm 4.1 is in the slow stop position, the clamping connection between the elastic deformation unit 4.7 and the spiral strip 4.6 plays a locking effect on the chair body 2 in the vertical position, which is beneficial to preventing the chair body 2 from repeatedly shaking, when the worm 4.1 moves from the slow stop position to the normal position, and when the shaft lever 4.3 rotates, the movable column 4.73 slides along the spiral strip 4.6, the movable column 4.73 generates extrusion force to the axial direction of the spiral strip 4.6, so that the worm 4.1 moves along the shaft rod 4.3, meanwhile, the chair body 2 also moves along with the movement of the worm 4.1 to perform reset motion, when the worm 4.1 moves from a slow position to a normal position, the chair body 2 also returns to a state before collision in the vehicle running direction, and the reset correction function is performed on the chair body 2;

it should be further noted that the fastening unit 8 includes a mounting plate 8.1 located between the right end of the worm 4.1 and the cavity wall of the placing cavity 1.2 and a plurality of, preferably three, fastening grooves 8.2 provided at the right end of the worm 4.1, each fastening groove 8.2 is uniformly distributed on the same circular line of the end of the right end of the worm 4.1 with the worm 4.1 as the center, the mounting plate 8.1 is a circular plate, the center of the mounting plate 8.1 is fixed with the shaft lever 4.3, the mounting plate 8.1 is in parallel fit with the cavity wall of the placing cavity 1.2, a straight inserting column 8.3 is inserted into the fastening groove 8.2, the axial line of the straight inserting column 8.3 is parallel to the axial line of the worm 4.1, one end of the straight inserting column 8.3 far away from the fastening groove 8.2 is movably sleeved with a sleeve 8.4, the sleeve 8.4 is fixed with the mounting plate 8.1, the inner bottom of the sleeve 8.4 is connected with the straight inserting column 8.3 through a spring 8.5, the straight inserting column 8.3, the solid inserting column is a solid rod, one end of the straight insertion column 8.3, which is inserted into the clamping groove 8.2, is a semi-spherical protruding end, so that the sliding friction force between the straight insertion column and the right end of the worm 4.1 is reduced;

in the process that the worm 4.1 moves from the slow stop position to the normal position, along with the reduction of the distance between the right end of the worm 4.1 and the mounting plate 8.1, the straight inserting column 8.3 is extruded by the right end of the worm 4.1 to move in the sleeve 8.4, meanwhile, the moving track of the straight inserting column 8.3 on the right end of the worm 4.1 is superposed with the annular line formed by each clamping groove 8.2 on the right end of the worm 4.1, when the inserting column 8.3 is superposed with each clamping groove 8.2, the inserting column 8.3 is inserted into each clamping groove 8.2 under the action of the second spring 8.5, at the moment, the buckling unit 8 restores the fixed connection function between the worm 4.1 and the shaft lever 4.3, and similarly, when the inserting column 8.3 is separated from the clamping groove 8.2, the fixed connection function of the buckling unit 8 between the worm 4.1 and the shaft lever 4.3 is failed at the moment.

In another embodiment of the present invention, the locking groove 8.2 of the locking unit 8 is located on the wall of the end portion cavity 4.5 near the left end of the worm 4.1, and the sleeve 8.4 is directly fixed to the end portion of the cylindrical block 4.71, and similarly, when the plug-in post 8.3 coincides with each locking groove 8.2, the plug-in post 8.3 is plugged into each locking groove 8.2 under the action of the second spring 8.5, and at this time, the locking unit 8 recovers the fixed connection function between the worm 4.1 and the shaft lever 4.3, and similarly, when the plug-in post 8.3 is separated from the locking groove 8.2, the fixed connection function of the locking unit 8 between the worm 4.1 and the shaft lever 4.3 is disabled.

As a preferred technical solution of this embodiment, the shaft lever 4.3 is fixed with two limiting discs 4.31, the limiting discs 4.31 and the mounting plate 8.1 are of the same structure, and it should be particularly noted that the number of the limiting discs 4.31 on the shaft lever 4.3 is two, the two limiting discs 4.31 are respectively located at two ends of the worm 4.1, and both the two limiting discs 4.31 are in contact with the cavity wall of the placing cavity 1.2, so as to limit the movement of the shaft lever 4.3 in the axial direction and prevent the shaft lever 4.3 from moving in the axial direction.

As a preferable technical solution of this embodiment, the center of the arc rack 4.2 coincides with the axis of the spindle 3.2, so as to ensure that the arc rack 4.2 rotates around the spindle 3.2.

As a preferred technical solution of this embodiment, the electronic horizontal display 2.1 is fixed on the chair body 2, so as to facilitate real-time understanding of the horizontal angle of the chair body 2, timely understanding of the horizontal state of the chair body 2, and provide a good reference for the tilt adjustment of the chair body 2.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a just, tear combination formula children's seat open, includes seat support (1) and chair body (2), its characterized in that, install the adjustment mechanism who is used for adjusting chair body (2) inclination on seat support (1), adjustment mechanism includes:

the chair body (2) is movably connected to the chair seat (1) through the connecting component (3);

declination control assembly (4), it includes worm (4.1) of rotation connection on seat support (1), worm (4.1) meshes with arc rack (4.2) of fixing on chair body (2) mutually to control the inclination of chair body (2) at seat support (1).

2. The child seat as claimed in claim 1, wherein the connecting assembly (3) comprises two side plates (3.1) fixed to two sides of the seat (1), respectively, and the body (2) of each side plate (3.1) is rotatably connected through a shaft column (3.2).

3. The child seat with convenient disassembly and assembly as claimed in claim 1, wherein the top of the seat (1) is provided with a containing cavity (1.1) for containing the bottom of the seat body (2), and the bottom of the containing cavity (1.1) is provided with a placing cavity (1.2) for placing the worm (4.1).

4. The child seat with easy-to-detach combination according to claim 1, wherein a shaft rod (4.3) is fixedly penetrated through the end of the worm (4.1), and a knob block (4.4) is fixedly arranged at one end of the shaft rod (4.3) extending out of the seat (1).

5. The child seat with convenient disassembly and assembly as claimed in claim 4, wherein a cylindrical cavity (4.5) is formed in the worm (4.1), a spiral strip (4.6) is fixed on the inner wall of the cylindrical cavity (4.5), and an elastic deformation unit (4.7) fixed on the shaft rod (4.3) is arranged in the cylindrical cavity (4.5).

6. The easy-to-detach combined child seat according to claim 5, wherein the elastic deformation unit (4.7) comprises a cylindrical block (4.71) fixed with the shaft rod (4.3), a plurality of inserting holes (4.72) are formed in the side face of the cylindrical block (4.71), a movable column (4.73) is inserted into each inserting hole (4.72), and the inserting end of each movable column (4.73) is connected with the inner bottom of each inserting hole (4.72) through a first spring (4.74).

7. The child seat as claimed in claim 6, wherein the protruding end of each movable post (4.73) is provided with a ramp portion (4.75) on the side facing the spiral strip (4.6).

8. A child seat of the detachable combination type according to claim 4, characterized in that a limiting disc (4.31) is fixed on the shaft lever (4.3).

9. The easy-to-detach combined type child seat according to claim 2, wherein the circle center of the arc rack (4.2) is coincident with the shaft column (3.2).

10. A detachable combined child seat according to claim 1, characterized in that an electronic level display (2.1) is fixed to the seat body (2).