CN115257481A - Automobile safety seat for children - Google Patents

Abstract

The invention relates to a child car safety seat, comprising: a base; the middle connecting piece is arranged above the base and is provided with an arc-shaped upper receiving surface protruding downwards; the bottom of the seat body is provided with an arc-shaped lower bottom surface which is convex downwards and is positioned above the arc-shaped upper receiving surface, and the seat body is connected with the middle connecting piece in a sliding way along the arc direction to adjust the inclination angle of the seat body relative to the base; an electric motor; the screw rod is in transmission connection with the motor; the nut is sleeved on the screw rod and is in threaded fit with the screw rod; a connecting rod with one end part pivotally connected with the nut through a rotating shaft on the connecting rod; one of the seat body and the middle connecting piece is fixedly connected with the motor, and the other of the seat body and the middle connecting piece is connected with the other end of the connecting rod through a connecting rod lower rotating shaft pivot; when the motor drives the screw rod to rotate, the nut moves along the axial lead direction of the screw rod to drive the connecting rod to swing, so that the seat body slides along the arc direction relative to the middle connecting piece. The child car safety seat is simple in structure, convenient to adjust and convenient to operate.

Description

Child car safety seat

technical field

The invention belongs to the field of children's products, and in particular relates to a child car safety seat.

Background technique

Child safety seats are used more and more widely as a safety tool for children riding in cars. The child safety seat usually includes a base and a seat body arranged on the base, the base is used for supporting on the car seat, and the seat body is used for the child to sit on. The seat body can usually be relatively slidably arranged on the base, so that the seat body and the base form different angles of matching postures, so that children can have different sitting or lying postures when riding in the child safety seat. However, the existing structure is not convenient to realize the angle adjustment between the seat body and the base, especially the smooth front and rear pitch adjustment. Even if similar pitch adjustment can be achieved through other structures, it is not convenient and stable enough. The adjustment of the angle between the seat body and the base is an important adjustment method for improving the comfort of the child when riding in a car. Therefore, a new type of child safety seat is needed, which can easily and conveniently realize the seat body relative to the base. Any angle adjustment within a limited range.

Contents of the invention

The purpose of the present invention is to provide a child car safety seat, which can adjust the rotation angle arbitrarily and meet the functional requirements of rotation adjustment.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A child car safety seat, comprising:

base;

An intermediate connecting piece, the intermediate connecting piece is arranged above the base, the intermediate connecting piece is pivotally connected with the base, and the intermediate connecting piece has a downwardly protruding arc metaphysical reception surface;

The seat body, the seat body is at least partly arranged above the intermediate connecting piece, the bottom of the seat body has a downwardly convex arc-shaped bottom surface, and the arc-shaped bottom surface is located at Above the arc-shaped upper receiving surface, the seat body and the intermediate connecting piece are slidably connected along the arc-shaped direction, for adjusting the seat body relative to the The inclination angle of the base; the child car safety seat also includes

An electric motor, the electric motor is fixedly arranged on the seat body, and the electric motor has a motor output shaft;

a screw, the screw is in transmission connection with the output shaft of the motor;

a nut, the nut is sleeved on the screw rod and threadedly connected with the screw rod;

A connecting rod, one end of the connecting rod is pivotally connected to the nut through the first rotating shaft of the connecting rod, and the other end of the connecting rod is connected to the intermediate connecting piece through the second rotating shaft of the connecting rod phase pivot connection;

When the motor drives the screw to rotate, the nut moves along the axis of the screw, driving the connecting rod to swing, so that the seat body is relatively The intermediate connecting piece slides along the said arc direction.

Preferably, the said screw is coaxially and fixedly connected to the output shaft of the motor.

Preferably, an arc-shaped guide groove is formed on the intermediate connecting piece, and the arc-shaped guide groove has a front limit stop wall and a rear limit stop wall, and a guide pin is fixed on the seat body, so that The guide pin is inserted into the guide groove; when the motor drives the screw to rotate, the guide pin moves along the arc-shaped guide groove between the front limit stop wall and the Sliding between the rear limit stop wall.

Further preferably, there are two arc-shaped guide grooves, which are respectively a front arc-shaped guide groove and a rear arc-shaped guide groove, and there are also two described guide pins, which are respectively a front guide pin and a rear guide pin. The front guide pin is inserted in the front arc guide groove, and the rear guide pin is inserted in the rear arc guide groove.

Preferably, the nut is fixed with a radially protruding first ear, and the upper end of the connecting rod is pivotally connected to the first ear through the first rotating shaft of the connecting rod. The lower end of the connecting rod is pivotally connected to the rear part of the intermediate connecting piece through the second rotating shaft of the connecting rod.

The purpose of the present invention is to provide a child car safety seat, which can adjust the rotation angle arbitrarily and meet the functional requirements of rotation adjustment.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A child car safety seat, comprising:

base;

An intermediate connecting piece, the intermediate connecting piece is arranged above the base, the intermediate connecting piece is pivotally connected with the base, and the intermediate connecting piece has a downwardly protruding arc metaphysical reception surface;

The seat body, the seat body is at least partly arranged above the intermediate connecting piece, the bottom of the seat body has a downwardly convex arc-shaped bottom surface, and the arc-shaped bottom surface is located at Above the arc-shaped upper receiving surface, the seat body and the intermediate connecting piece are slidably connected along the arc-shaped direction, for adjusting the seat body relative to the The inclination angle of the base; the child car safety seat also includes

An electric motor, the electric motor is fixedly arranged on the intermediate connector, and the electric motor has a motor output shaft;

a screw, the screw is in transmission connection with the output shaft of the motor;

a nut, the nut is sleeved on the screw rod and threadedly connected with the screw rod;

A connecting rod, one end of the connecting rod is pivotally connected to the nut through the first rotating shaft of the connecting rod, and the other end of the connecting rod is connected to the seat body through the second rotating shaft of the connecting rod phase pivot connection;

When the motor drives the screw to rotate, the nut moves along the axis of the screw, driving the connecting rod to swing, so that the seat body is relatively The intermediate connecting piece slides along the said arc direction.

Preferably, the said screw is coaxially and fixedly connected to the output shaft of the motor.

Preferably, an arc-shaped guide groove is formed on the intermediate connecting piece, and the arc-shaped guide groove has a front limit stop wall and a rear limit stop wall, and a guide pin is fixed on the seat body, so that The guide pin is inserted into the guide groove; when the motor drives the screw to rotate, the guide pin moves along the arc-shaped guide groove between the front limit stop wall and the Sliding between the rear limit stop wall.

Further preferably, there are two arc-shaped guide grooves, which are respectively a front arc-shaped guide groove and a rear arc-shaped guide groove, and there are also two described guide pins, which are respectively a front guide pin and a rear guide pin. The front guide pin is inserted in the front arc guide groove, and the rear guide pin is inserted in the rear arc guide groove.

Preferably, the nut is fixed with a radially protruding first ear, and the lower end of the connecting rod is pivotally connected to the first ear through the first rotating shaft of the connecting rod. The upper end of the connecting rod is pivotally connected to the seat body through the second rotating shaft of the connecting rod.

The purpose of the present invention is to provide a child car safety seat, which can adjust the rotation angle arbitrarily and meet the functional requirements of rotation adjustment.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A child car safety seat, comprising:

base;

An intermediate connecting piece, the intermediate connecting piece is arranged above the base, the intermediate connecting piece is pivotally connected with the base, and the intermediate connecting piece has a downwardly protruding arc metaphysical reception surface;

The seat body, the seat body is at least partly arranged above the intermediate connecting piece, the bottom of the seat body has a downwardly convex arc-shaped bottom surface, and the arc-shaped bottom surface is located at Above the arc-shaped upper receiving surface, the seat body and the intermediate connecting piece are slidably connected along the arc-shaped direction, for adjusting the seat body relative to the The inclination angle of the base; the child car safety seat also includes

an electric motor, the electric motor is fixedly arranged on the seat body;

a nut, and the nut is connected to the electric motor in transmission;

a screw rod, the nut is sleeved on the screw rod and threadedly connected with the screw rod;

A connecting rod, one end of the connecting rod is pivotally connected to the screw through the first rotating shaft of the connecting rod, and the other end of the connecting rod is connected to the intermediate connecting piece through the second rotating shaft of the connecting rod phase pivot connection;

When the motor drives the nut to rotate, the nut moves along the axial direction of the screw rod, driving the connecting rod to swing, so that the seat body is relatively The intermediate connecting piece slides along the said arc direction.

Preferably, an arc-shaped guide groove is formed on the intermediate connecting piece, and the arc-shaped guide groove has a front limit stop wall and a rear limit stop wall, and a guide pin is fixed on the seat body, so that The guide pin is inserted into the guide groove; when the motor drives the nut to rotate, the guide pin moves along the arc-shaped guide groove between the front limit stop wall and the Sliding between the rear limit stop wall.

Further preferably, there are two arc-shaped guide grooves, which are respectively a front arc-shaped guide groove and a rear arc-shaped guide groove, and there are also two described guide pins, which are respectively a front guide pin and a rear guide pin. The front guide pin is inserted in the front arc guide groove, and the rear guide pin is inserted in the rear arc guide groove.

Preferably, the screw rod is provided with a radially protruding second ear portion, the position of the second ear portion relative to the screw rod in the axial direction of the screw rod remains unchanged, and the The upper end of the connecting rod is pivotally connected to the second ear through the first rotating shaft of the connecting rod, and the lower end of the connecting rod is connected to the rear part of the intermediate connecting piece through the second rotating shaft of the connecting rod. Pivot connection.

The purpose of the present invention is to provide a child car safety seat, which can adjust the rotation angle arbitrarily and meet the functional requirements of rotation adjustment.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A child car safety seat, comprising:

base;

An intermediate connecting piece, the intermediate connecting piece is arranged above the base, the intermediate connecting piece is pivotally connected with the base, and the intermediate connecting piece has a downwardly protruding arc metaphysical reception surface;

The seat body, the seat body is at least partly arranged above the intermediate connecting piece, the bottom of the seat body has a downwardly convex arc-shaped bottom surface, and the arc-shaped bottom surface is located at Above the arc-shaped upper receiving surface, the seat body and the intermediate connecting piece are slidably connected along the arc-shaped direction, for adjusting the seat body relative to the The inclination angle of the base; the child car safety seat also includes

An electric motor, the electric motor is fixedly arranged on the intermediate connector;

a nut, the nut is connected to the output shaft of the electric motor through transmission;

a screw rod, the nut is sleeved on the screw rod and threadedly connected with the screw rod;

A connecting rod, one end of the connecting rod is pivotally connected to the screw through the first rotating shaft of the connecting rod, and the other end of the connecting rod is connected to the seat body through the second rotating shaft of the connecting rod phase pivot connection;

When the motor drives the nut to rotate, the nut moves along the axial direction of the screw rod, driving the connecting rod to swing, so that the seat body is relatively The intermediate connecting piece slides along the said arc direction.

Preferably, an arc-shaped guide groove is formed on the intermediate connecting piece, and the arc-shaped guide groove has a front limit stop wall and a rear limit stop wall, and a guide pin is fixed on the seat body, so that The guide pin is inserted into the guide groove; when the motor drives the nut to rotate, the guide pin moves along the arc-shaped guide groove between the front limit stop wall and the Sliding between the rear limit stop wall.

Further preferably, there are two arc-shaped guide grooves, which are respectively a front arc-shaped guide groove and a rear arc-shaped guide groove, and there are also two described guide pins, which are respectively a front guide pin and a rear guide pin. The front guide pin is inserted in the front arc guide groove, and the rear guide pin is inserted in the rear arc guide groove.

Preferably, the screw rod is provided with a radially protruding second ear portion, the position of the second ear portion relative to the screw rod in the axial direction of the screw rod remains unchanged, and the The lower end of the connecting rod is pivotally connected to the second ear through the first connecting rod shaft, and the upper end of the connecting rod is pivotally connected to the seat body through the second connecting rod rotating shaft connect.

Due to the use of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art:

The present invention utilizes the electric motor to drive the screw rod to move relative to the nut to realize the movement of the seat body driven by the motor, and then through the cooperation of the arc surface between the seat body and the intermediate connector, the rotation adjustment of the seat body relative to the base can be realized; Both ends are pivotally connected, so that the linear movement of the nut relative to the screw is transformed into a rotation adjustment in which the seat body can slide against the arc surface of the intermediate connector; at the same time, the cooperation of the motor, the screw, and the nut can realize the infinite adjustment of the rotation adjustment; The child car safety seat of the invention has the advantages of simple structure, convenient adjustment of rotation angle and convenient operation.

Description of drawings

Accompanying drawing 1 is the lateral schematic view of child car safety seat in embodiment one;

Accompanying drawing 2 is the rear schematic diagram of child car safety seat in embodiment one;

Accompanying drawing 3 is the schematic top view when the child car safety seat in the first embodiment is in the first state;

Accompanying drawing 4 is the sectional schematic diagram of A-A section in accompanying drawing 3;

Accompanying drawing 5 is the enlarged schematic view of part B in accompanying drawing 4;

Accompanying drawing 6 is the enlarged schematic view of part C in accompanying drawing 4;

Accompanying drawing 7 is the enlarged schematic diagram of part D in accompanying drawing 4;

Accompanying drawing 8 is the top view diagram when the child car safety seat in the first embodiment is in the second state;

Accompanying drawing 9 is the sectional schematic diagram of E-E section in accompanying drawing 8;

Accompanying drawing 10 is the enlarged schematic diagram of part F in accompanying drawing 9;

Accompanying drawing 11 is the enlarged schematic diagram of part G in accompanying drawing 9;

Accompanying drawing 12 is the enlarged schematic diagram of part H in accompanying drawing 9;

Figure 13 is a schematic cross-sectional view of the child safety seat in the second embodiment when it is in the first state;

Accompanying drawing 14 is the enlarged schematic view of part I in accompanying drawing 13;

Figure 15 is a schematic cross-sectional view of the child safety seat in the third embodiment when it is in the first state;

Accompanying drawing 16 is the enlarged schematic view of J part in accompanying drawing 15;

Figure 17 is a schematic cross-sectional view of the child safety seat in the fourth embodiment when it is in the first state;

Accompanying drawing 18 is the enlarged schematic diagram of part K in accompanying drawing 17.

In the attached drawings above:

1. Base; 2. Intermediate connector; 21. Arc-shaped guide groove; 211. Front limit retaining wall; 212. Rear limit retaining wall; 213. Front arc-shaped guide groove; 214. Rear arc-shaped guide groove; 3 , seat body; 31, guide pin; 311, front guide pin; 312, rear guide pin;

4, motor; 41, motor output shaft; 42, motor mounting bracket; 5, screw; 51, screw end sleeve; 52, screw end sleeve seat; 53, screw seat fixing frame; 54, screw end face nut; 6, nut; 61, first ear; 7, connecting rod; 71, first rotating shaft of connecting rod; 72, second rotating shaft of connecting rod; 8, connector; 81, connector seat.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. Two features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of the present invention, the "front", "rear", "left", "right", "up", "down" and other directions involved are defined by reference to the directions observed by children when riding As shown in Figure 1, the left direction in the figure is "front", the right direction in the figure is "rear", the upper direction in the figure is "up", and the lower direction in the figure is "down". ", the directions perpendicular to the viewing angle in the figure are "left" and "right". The definitions of the above directions are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation , constructed and operated in a particular orientation and therefore should not be construed as limiting the invention.

Embodiment one:

As shown in FIGS. 1-3 and 8 , a child car safety seat includes a base 1 , an intermediate connector 2 , and a seat body 3 .

The shape of the intermediate connecting piece 2 can be roughly regarded as a boat shape. The intermediate connecting piece 2 is arranged above the base 1. The intermediate connecting piece 2 is pivotally connected with the base 1 through the seat shaft. The intermediate connecting piece 2 has a downward protruding The arc-shaped upper receiving surface of the seat, the seat shaft is not necessarily a physical shaft, but also refers to a virtual shaft, which only means that the intermediate connecting part 2 and the base 1 can realize relative rotation.

The seat body 3 is used for riding a child. The seat body 3 is at least partly arranged above the intermediate connector 2. The bottom of the seat body 3 has a downwardly protruding arc-shaped bottom surface, and the arc-shaped bottom surface is located on the arc to receive Above the surface, the seat body 3 is slidably connected with the intermediate connecting piece 2 along the arc direction, and is used for adjusting the inclination angle of the seat body 3 relative to the base 1 . When the seat body 3 slides relative to the intermediate connecting piece 2 in an arc direction, the inclination angle of the seat body 3 relative to the base 1 changes, and the arc direction transitions from front to rear and from bottom to top.

As shown in Figures 4, 5, 8, and 9, an arc-shaped guide groove 21 is formed on the intermediate connector 2, and the extending direction of the arc-shaped guide groove 21 is the arc direction in which the seat body 3 slides, and the arc-shaped guide groove 21 has a front limit stop wall 211 and a rear limit stop wall 212. In this embodiment, the front limit stop wall 211 and the rear limit stop wall 212 are respectively located at the front and rear ends of the arc-shaped guide groove 21 in the extending direction. . A guide pin 31 is fixed on the seat body 3, and the guide pin 31 is inserted in the guide groove. When the seat body 3 slides relative to the intermediate connector 2, the guide pin 31 slides in the guide groove, thereby limiting the seat body 3 relative to the intermediate connection. The sliding direction of piece 2. When the guide pin 31 collides with the front limit stop wall 211, the seat is in the first state. When the guide pin 31 collides with the rear limit stop wall 212, the seat is in the second state. Compared with the first state, the seat is in the second state. In the second state, the back of the seat body 3 is closer to the back of the base 1 .

Specifically, there are two arc-shaped guide grooves 21, which are respectively a front arc-shaped guide groove 213 and a rear arc-shaped guide groove 214, which are respectively located at the front position and the rear position of the intermediate connector 2. One, respectively front guide pin 311 and rear guide pin 312, the front guide pin 311 is inserted in the front arc-shaped guide groove 213, the rear guide pin 312 is inserted in the rear arc-shaped guide groove 214, through two groups of guide pins 31 and arc The cooperation of the shaped guide groove 21 makes the sliding of the seat body 3 more stable, and enhances the connection stability with the intermediate connector 2, so as to prevent a certain side of the seat body 3 from tilting.

As shown in Figures 4, 6, 7, 9, 11, and 12, the child car safety seat also includes a motor 4, a screw 5, a nut 6, a connecting rod 7, and the back of the seat body 3 (the back here can be understood as roughly There is an accommodating space behind the corresponding position of the back when the child rides to set the above-mentioned structure. By setting the above-mentioned structure, the angle adjustment of the seat body 3 relative to the base 1 is realized. It is shown that when the motor 4 drives the screw rod 5 to rotate, the nut 6 moves along the axial direction of the screw rod 5, driving the connecting rod 7 to swing, so that the seat body 3 slides along the arc direction relative to the intermediate connecting piece 2, and the guide pin 31 is limited in front along the arc guide groove 21. Slide between the stop wall 211 and the rear limit stop wall 212; when the motor 4 drives the screw rod 5 to rotate, it only drives the seat body 3 to slide relative to the intermediate connector 2, and does not drive the intermediate connector 2 to move relative to the base 1.

The motor 4 is fixedly arranged on the seat body 3 , specifically: the motor 4 is connected to the motor mounting bracket 42 , and the motor mounting bracket 42 is fixedly welded on the seat body 3 .

The motor 4 has a motor output shaft 41 , and in this embodiment, the motor output shaft 41 is coaxially fixedly connected to the screw rod 5 . Specifically, the upper end of the screw rod 5 is fixed to the motor output shaft 41 through the connector 8, and the connector 8 is sleeved on the upper end of the screw rod 5 and the motor output shaft 41 at the same time, and the motor mounting bracket 42 is fixedly provided with a connector seat 81, the connector 8 is installed in the connector seat 81; the lower end of the screw rod 5 is provided with a screw end sleeve 51, the screw end sleeve 51 is arranged on the screw end sleeve seat 52, and the screw end sleeve seat 52 is fixedly arranged on the screw seat On the fixed frame 53 , the screw seat fixed frame 53 is fixedly welded on the seat body 3 , and the lower end of the screw rod 5 is further screwed with a screw end face nut 54 to limit the screw end cover 51 on the screw rod 5 .

The nut 6 is sleeved on the screw rod 5 and threadedly connected with the screw rod 5, so that the rotation of the nut 6 relative to the screw rod 5 can be transformed into the movement of the screw rod 5 along its axis, and displacement in the aforementioned arc direction to drive The seat body 3 moves. At the same time, due to the restriction of the screw end sleeve 51 , the nut 6 is prevented from moving out of the lower end of the screw 5 .

One end of the connecting rod 7 is pivotally connected to the nut 6 through the first connecting rod shaft 71 , and the other end of the connecting rod 7 is pivotally connected to the intermediate connecting member 2 through the second connecting rod rotating shaft 72 . Due to the limitation of the length of the connecting rod 7, the nut 6 cannot produce a large displacement, so that the screw rod 5 moves relative to the nut 6 along the axis of the screw rod 5 when the motor 4 is driven. Angle changes occur, but the pivoting at both ends of the connecting rod 7 prevents the synthetic movement of the movement of the screw 5 along the axial direction and the rotation of the angle change from being frustrating, so that the sliding of the seat body 3 is smoother. Specifically, the nut 6 is fixed with a radially protruding first ear 61, the upper end of the connecting rod 7 is pivotally connected to the first ear 61 through the first connecting rod shaft 71, and the lower end of the connecting rod 7 The second rotating shaft 72 of the connecting rod is pivotally connected with the rear part of the intermediate connecting piece 2 .

Embodiment two:

This embodiment is basically the same as Embodiment 1, except that the connection positions of motor 4, screw 5 and connecting rod 7 are different, but the principle of controlling the movement of seat body 3 is the same as Embodiment 1, and its purpose is to provide another A structure that can realize the movement of the seat body 3, as shown in Figures 13 and 14, combined with the structure in the drawings involved in the first embodiment, the specific structure is as follows:

The motor 4 is fixedly arranged on the intermediate connector 2 , specifically: the motor 4 is connected to the motor mounting bracket 42 , and the motor mounting bracket 42 is fixedly welded on the intermediate connector 2 .

The motor 4 has a motor output shaft 41 , and in this embodiment, the motor output shaft 41 is coaxially fixedly connected to the screw rod 5 . Specifically, the lower end of the screw 5 is fixed to the motor output shaft 41 through the connector 8, and the connector 8 is sleeved on the lower end of the screw 5 and the motor output shaft 41 at the same time, and the motor mounting bracket 42 is fixedly provided with a connector Seat 81, connector 8 is installed in the connector seat 81.

One end of the connecting rod 7 is pivotally connected to the nut 6 through the first connecting rod shaft 71 , and the other end of the connecting rod 7 is pivotally connected to the seat body 3 through the second connecting rod rotating shaft 72 . Since the screw 5 is connected to the motor output shaft 41 and the motor 4 is connected to the intermediate connector 2, the three-dimensional position of the screw 5 relative to the base 1 and the intermediate connector 2 is basically unchanged, so the movement of the nut 6 relative to the screw 5 will drive the connecting rod 7 moves together, and the second connecting rod shaft 72 is fixed relative to the seat body 3, so that the connecting rod 7 rotates around the second connecting rod shaft 72, and the connecting rod 7 moves axially relative to the screw rod 5 on one side under the mutual structural constraints While turning, push the seat body 7 to move along the arc direction, and use the pivots at the two ends of the connecting rod 7 to avoid the synthetic motion of the movement of the screw 5 along the axial direction and the rotation of the angle change. The sliding of the seat body 3 is smoother. Specifically, the nut 6 is fixed with a radially protruding first ear 61, the lower end of the connecting rod 7 is pivotally connected to the first ear 61 through the first rotating shaft 71 of the connecting rod, and the upper end of the connecting rod 7 The upper part is pivotally connected with the seat body 3 through the second rotating shaft 72 of the connecting rod.

Embodiment three:

This embodiment is basically the same as Embodiment 1, except that the connection positions of motor 4, screw 5 and connecting rod 7 are different, but the principle of controlling the movement of seat body 3 is the same as Embodiment 1, and its purpose is to provide another A structure that can realize the movement of the seat body 3, as shown in Figures 15 and 16, combined with reference to the structure in the accompanying drawings involved in the first embodiment, the specific structure is as follows:

In this embodiment, the motor 4 drives the nut 6 to rotate, so that the nut 6 moves along the axial direction of the screw 5, and the screw 5 drives the connecting rod 7 to swing, so that the seat body 3 is along the arc direction relative to the intermediate connecting piece 2 slide.

The motor 4 is fixedly arranged on the seat body 3 , specifically: the motor 4 is connected to the motor mounting bracket 42 , and the motor mounting bracket 42 is fixedly welded on the seat body 3 .

The motor 4 and the nut 6 are connected in transmission. In this embodiment, the nut 6 is arranged inside the motor 4 so that it can rotate around its own axis. Alternatively, the motor 4 with its own nut 6 can be used, which is an equivalent replacement. The screw rod 5 passes through the motor 4, and the nut 6 is sleeved on the screw rod 5 and threadedly connected with the screw rod 5. Since the nut 6 is arranged in the motor 4, its spatial position relative to the seat body 3 remains unchanged, and the screw rod 5 passes through the connecting rod. 7 is connected to the intermediate connecting piece 2, so through the rotation of the nut 6 relative to the screw 5, the movement between the two is converted into the movement of the nut 6 along the axis of the screw 5, and displacement in the aforementioned arc direction to drive The seat body 3 moves.

One end of the connecting rod 7 is pivotally connected to the screw rod 5 through the first connecting rod shaft 71 , and the other end of the connecting rod 7 is pivotally connected to the intermediate connecting member 2 through the second connecting rod rotating shaft 72 . Due to the limitation of the length of the connecting rod 7, the screw rod 5 cannot produce a large displacement, so that the nut 6 moves along the axial direction of the screw rod 5 relative to the screw rod 5 when the motor 4 is driven to work, and the mutual structural restrictions make the screw rod 5 phase when the nut 6 moves. Angle changes occur in the front and rear directions, and the pivots at both ends of the connecting rod 7 are used to prevent the movement of the nut 6 along the axis of the screw rod 5 and the rotation of the angle change. The slide is smoother. Specifically, the lower end of the screw 5 is provided with a radially protruding second ear 55, the position of the second ear 55 relative to the screw 5 in the axial direction of the screw 5 remains unchanged, and the upper end of the connecting rod 7 The first rotating shaft 71 of the connecting rod is pivotally connected to the second ear portion 55 , and the lower end of the connecting rod 7 is pivotally connected to the rear of the intermediate connector 2 through the second rotating shaft 72 of the connecting rod. Wherein it is more preferable that the second ear portion 55 is fixedly arranged relative to the screw rod 5 .

Embodiment four:

This embodiment is basically the same as Embodiment 1, except that the connection positions of motor 4, screw 5 and connecting rod 7 are different, but the principle of controlling the movement of seat body 3 is the same as Embodiment 1, and its purpose is to provide another A structure that can realize the movement of the seat body 3, as shown in Figures 17 and 18, combined with reference to the structure in the drawings involved in the first embodiment, the specific structure is as follows:

In this embodiment, the motor 4 drives the nut 6 to rotate, so that the nut 6 moves along the axial direction of the screw 5, and the screw 5 drives the connecting rod 7 to swing, so that the seat body 3 is along the arc direction relative to the intermediate connecting piece 2 slide.

The motor 4 is fixedly arranged on the intermediate connecting piece 2 , specifically: the electric motor 4 is fixed at the rear of the intermediate connecting piece 2 .

The motor 4 and the nut 6 are connected in transmission. In this embodiment, the nut 6 is arranged inside the motor 4 so that it can rotate around its own axis. Alternatively, the motor 4 with its own nut 6 can be used, which is an equivalent replacement. The screw rod 5 passes through the motor 4, and the nut 6 is sleeved on the screw rod 5 and threadedly connected with the screw rod 5. Since the nut 6 is arranged in the motor 4, its spatial position relative to the intermediate connector 2 remains unchanged, and the screw rod 5 passes through the connecting rod 7 is connected with the seat body 3, so through the rotation of the nut 6 relative to the screw 5, the movement between the two is converted into the movement of the screw 5 relative to the nut 6 along the axis of the screw 5, and displacement in the aforementioned arc direction To drive the seat body 3 to move.

One end of the connecting rod 7 is pivotally connected to the screw rod 5 through the first connecting rod shaft 71 , and the other end of the connecting rod 7 is pivotally connected to the seat body 3 through the second connecting rod rotating shaft 72 . Since the nut 6 is arranged inside the motor 4 and the motor 4 is connected to the intermediate connecting piece 2, the three-dimensional position of the nut relative to the base 1 and the intermediate connecting piece 2 is basically unchanged, so the movement of the screw 5 relative to the nut 6 will drive the connecting rod 7 together. The second rotating shaft 72 of the connecting rod is fixed relative to the seat body 3, so that the connecting rod 7 rotates around the second rotating shaft 72 of the connecting rod. The mutual structural constraints make the screw rod 5 move with an angle change compared with the front and rear direction, but Utilizing the pivotal rotation at both ends of the connecting rod 7 prevents the synthetic movement of the movement of the screw rod 5 along the direction of the axis of the screw rod 5 and the rotation of the angle change from being frustrating, so that the sliding of the seat body 3 is smoother. Specifically, the upper end of the screw 5 is provided with a radially protruding second ear 55, the position of the second ear 55 relative to the screw 5 in the axial direction of the screw 5 remains unchanged, and the lower end of the connecting rod 7 passes through The connecting rod first rotating shaft 71 is pivotally connected to the second ear portion 55 , and the upper end of the connecting rod 7 is pivotally connected to the seat body 3 through the connecting rod second rotating shaft 72 . Wherein it is more preferable that the second ear portion 55 is fixedly arranged relative to the screw rod 5 .

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art.

Claims (18)

1. A child car safety seat, comprising: base; An intermediate connecting piece, the intermediate connecting piece is arranged above the base, the intermediate connecting piece is pivotally connected with the base, and the intermediate connecting piece has a downwardly protruding arc metaphysical reception surface; The seat body, the seat body is at least partly arranged above the intermediate connecting piece, the bottom of the seat body has a downwardly convex arc-shaped bottom surface, and the arc-shaped bottom surface is located at Above the arc-shaped upper receiving surface, the seat body and the intermediate connecting piece are slidably connected along the arc-shaped direction, for adjusting the seat body relative to the The inclination angle of the base; it is characterized in that: the child car safety seat also includes An electric motor, the electric motor is fixedly arranged on the seat body, and the electric motor has a motor output shaft; a screw, the screw is in transmission connection with the output shaft of the motor; a nut, the nut is sleeved on the screw rod and threadedly connected with the screw rod; A connecting rod, one end of the connecting rod is pivotally connected to the nut through the first rotating shaft of the connecting rod, and the other end of the connecting rod is connected to the intermediate connecting piece through the second rotating shaft of the connecting rod phase pivot connection; When the motor drives the screw to rotate, the nut moves along the axis of the screw, driving the connecting rod to swing, so that the seat body is relatively The intermediate connecting piece slides along the said arc direction. 2 . The child car safety seat according to claim 1 , wherein the screw rod is coaxially and fixedly connected to the output shaft of the motor. 3 . 3. The child car safety seat according to claim 1, characterized in that: an arc-shaped guide groove is opened on the intermediate connecting piece, and the arc-shaped guide groove has a front limiting wall and a rear limiting wall. A retaining wall, a guide pin is fixed on the seat body, and the guide pin is inserted into the guide groove; when the motor drives the screw to rotate, the guide pin moves along the The arc-shaped guide groove slides between the front limiting wall and the rear limiting wall. 4. The child car safety seat according to claim 3, characterized in that: there are two arc-shaped guide grooves, which are respectively a front arc-shaped guide groove and a rear arc-shaped guide groove, and the guide pins also have Two, respectively a front guide pin and a rear guide pin, the front guide pin is inserted in the front arc-shaped guide groove, and the rear guide pin is inserted in the rear arc-shaped guide groove. 5. The child car safety seat according to claim 1, characterized in that: the nut is fixed with a radially protruding first ear, and the upper end of the connecting rod passes through the first rotating shaft of the connecting rod It is pivotally connected with the first ear, and the lower end of the connecting rod is pivotally connected with the rear part of the intermediate connecting piece through the second rotating shaft of the connecting rod. 6. A child car safety seat, comprising: base; An intermediate connecting piece, the intermediate connecting piece is arranged above the base, the intermediate connecting piece is pivotally connected with the base, and the intermediate connecting piece has a downwardly protruding arc metaphysical reception surface; The seat body, the seat body is at least partly arranged above the intermediate connecting piece, the bottom of the seat body has a downwardly convex arc-shaped bottom surface, and the arc-shaped bottom surface is located at Above the arc-shaped upper receiving surface, the seat body and the intermediate connecting piece are slidably connected along the arc-shaped direction, for adjusting the seat body relative to the The inclination angle of the base; it is characterized in that: the child car safety seat also includes An electric motor, the electric motor is fixedly arranged on the intermediate connector, and the electric motor has a motor output shaft; a screw, the screw is in transmission connection with the output shaft of the motor; a nut, the nut is sleeved on the screw rod and threadedly connected with the screw rod; A connecting rod, one end of the connecting rod is pivotally connected to the nut through the first rotating shaft of the connecting rod, and the other end of the connecting rod is connected to the seat body through the second rotating shaft of the connecting rod phase pivot connection; When the motor drives the screw to rotate, the nut moves along the axis of the screw, driving the connecting rod to swing, so that the seat body is relatively The intermediate connecting piece slides along the said arc direction. 7 . The child car safety seat according to claim 6 , wherein the screw rod is coaxially and fixedly connected to the output shaft of the motor. 8 . 8. The child car safety seat according to claim 6, characterized in that: an arc-shaped guide groove is opened on the intermediate connecting piece, and the arc-shaped guide groove has a front limiting wall and a rear limiting wall. A retaining wall, a guide pin is fixed on the seat body, and the guide pin is inserted into the guide groove; when the motor drives the screw to rotate, the guide pin moves along the The arc-shaped guide groove slides between the front limiting wall and the rear limiting wall. 9. The child car safety seat according to claim 8, characterized in that: there are two arc-shaped guide grooves, which are respectively a front arc-shaped guide groove and a rear arc-shaped guide groove, and the guide pins also have Two, respectively a front guide pin and a rear guide pin, the front guide pin is inserted in the front arc-shaped guide groove, and the rear guide pin is inserted in the rear arc-shaped guide groove. 10. The child car safety seat according to claim 6, wherein a radially protruding first ear is fixed on the nut, and the lower end of the connecting rod passes through the first rotating shaft of the connecting rod. It is pivotally connected with the first ear, and the upper end of the connecting rod is pivotally connected with the seat body through the second rotating shaft of the connecting rod. 11. A child car safety seat, comprising: base; An intermediate connecting piece, the intermediate connecting piece is arranged above the base, the intermediate connecting piece is pivotally connected with the base, and the intermediate connecting piece has a downwardly protruding arc metaphysical reception surface; The seat body, the seat body is at least partly arranged above the intermediate connecting piece, the bottom of the seat body has a downwardly convex arc-shaped bottom surface, and the arc-shaped bottom surface is located at Above the arc-shaped upper receiving surface, the seat body and the intermediate connecting piece are slidably connected along the arc-shaped direction, for adjusting the seat body relative to the The inclination angle of the base; it is characterized in that: the child car safety seat also includes an electric motor, the electric motor is fixedly arranged on the seat body; a nut, and the nut is connected to the electric motor in transmission; a screw rod, the nut is sleeved on the screw rod and threadedly connected with the screw rod; A connecting rod, one end of the connecting rod is pivotally connected to the screw through the first rotating shaft of the connecting rod, and the other end of the connecting rod is connected to the intermediate connecting piece through the second rotating shaft of the connecting rod phase pivot connection; When the motor drives the nut to rotate, the nut moves along the axial direction of the screw rod, driving the connecting rod to swing, so that the seat body is relatively The intermediate connecting piece slides along the said arc direction. 12. The child car safety seat according to claim 11, characterized in that: an arc-shaped guide groove is formed on the intermediate connecting piece, and the arc-shaped guide groove has a front limiting wall and a rear limiting wall. A retaining wall, a guide pin is fixed on the seat body, and the guide pin is inserted into the guide groove; when the motor drives the nut to rotate, the guide pin moves along the The arc-shaped guide groove slides between the front limiting wall and the rear limiting wall. 13. The child car safety seat according to claim 12, characterized in that: there are two arc-shaped guide grooves, namely a front arc-shaped guide groove and a rear arc-shaped guide groove, and the guide pins also have Two, respectively a front guide pin and a rear guide pin, the front guide pin is inserted in the front arc-shaped guide groove, and the rear guide pin is inserted in the rear arc-shaped guide groove. 14. The child car safety seat according to claim 11, characterized in that: said screw rod is provided with a radially protruding second ear portion, said second ear portion is opposite to said screw rod at the position The position of the screw in the axial direction remains unchanged, the upper end of the connecting rod is pivotally connected to the second ear through the first rotating shaft of the connecting rod, and the lower end of the connecting rod is connected through the The second rotating shaft of the connecting rod is pivotally connected with the rear part of the intermediate connecting piece. 15. A child car seat comprising: base; An intermediate connecting piece, the intermediate connecting piece is arranged above the base, the intermediate connecting piece is pivotally connected with the base, and the intermediate connecting piece has a downwardly protruding arc metaphysical reception surface; The seat body, the seat body is at least partly arranged above the intermediate connecting piece, the bottom of the seat body has a downwardly convex arc-shaped bottom surface, and the arc-shaped bottom surface is located at Above the arc-shaped upper receiving surface, the seat body and the intermediate connecting piece are slidably connected along the arc-shaped direction, for adjusting the seat body relative to the The inclination angle of the base; it is characterized in that: the child car safety seat also includes An electric motor, the electric motor is fixedly arranged on the intermediate connector; a nut, the nut is connected to the output shaft of the electric motor through transmission; a screw rod, the nut is sleeved on the screw rod and threadedly connected with the screw rod; A connecting rod, one end of the connecting rod is pivotally connected to the screw through the first rotating shaft of the connecting rod, and the other end of the connecting rod is connected to the seat body through the second rotating shaft of the connecting rod phase pivot connection; When the motor drives the nut to rotate, the nut moves along the axial direction of the screw rod, driving the connecting rod to swing, so that the seat body is relatively The intermediate connecting piece slides along the said arc direction. 16. The child car safety seat according to claim 15, characterized in that: an arc-shaped guide groove is formed on the intermediate connecting piece, and the arc-shaped guide groove has a front limiting wall and a rear limiting wall. A retaining wall, a guide pin is fixed on the seat body, and the guide pin is inserted into the guide groove; when the motor drives the nut to rotate, the guide pin moves along the The arc-shaped guide groove slides between the front limiting wall and the rear limiting wall. 17. The child car safety seat according to claim 16, characterized in that: there are two arc-shaped guide grooves, namely a front arc-shaped guide groove and a rear arc-shaped guide groove, and the guide pins also have Two, respectively a front guide pin and a rear guide pin, the front guide pin is inserted in the front arc-shaped guide groove, and the rear guide pin is inserted in the rear arc-shaped guide groove. 18. The child car safety seat according to claim 15, characterized in that: said screw rod is provided with a radially protruding second ear portion, said second ear portion is opposite to said screw rod at the position The position of the screw in the axial direction remains unchanged, the lower end of the connecting rod is pivotally connected to the second ear through the first rotating shaft of the connecting rod, and the upper end of the connecting rod is connected through the The second rotating shaft of the connecting rod is pivotally connected with the seat body.

Images