CN220577100U - Separated pneumatic leg supporting device and automobile seat - Google Patents

Abstract

The application discloses a separated pneumatic leg supporting device and an automobile seat, and belongs to the technical field of automobile leg supporting; the split pneumatic leg support device includes: the adjusting unit sets up on the skeleton, and it includes: the device comprises an extension member and at least two independently arranged adjusting air bag parts which are in sliding connection with the extension member along a first direction, wherein the two adjusting air bag parts are arranged side by side along a second direction; the adjustment airbag section includes: a support assembly and an air bag assembly which are matched with each other; the air bag component has an inflation state, a deflation state and a pressure maintaining state, and can drive the supporting component to move when the air bag component is switched between the three states; the control unit comprises an air source and an air pipe group communicated with the air source; the two air tube groups are respectively connected with different air bag assemblies; according to the control unit, different air bag assemblies are controlled to be switched among the inflation state, the deflation state and the pressure maintaining state, so that the two adjusting air bag portions can meet different gesture requirements of the left leg and the right leg simultaneously.

Description

Separated pneumatic leg supporting device and automobile seat

Technical Field

The present disclosure relates generally to the field of automotive leg support technology, and in particular, to a split pneumatic leg support device and an automotive seat.

Background

In recent years, with rapid development and popularization of the automotive field, there is an increasing demand for riding comfort of vehicles. Automatic transmission vehicles are favored by drivers because they simplify the driver's operation of shifting gears. During driving of an automatic transmission vehicle, the left leg does not need to operate a pedal, and the switching of an accelerator pedal and a brake pedal is controlled by the right leg, so that the positions and states of the legs of the driver are different. The existing integrated leg support design cannot be adjusted in a targeted manner according to different working states of the legs of a driver. For this reason, we propose a separate pneumatic leg support device to solve the above-mentioned problems.

Disclosure of Invention

In view of the foregoing drawbacks or deficiencies in the prior art, it is desirable to provide a split pneumatic leg support arrangement and an automotive seat that meets the need for two legs to provide different attitudes.

In a first aspect, the present application provides a split pneumatic leg support device disposed on a frame of an automobile seat for supporting a leg of a person;

the split pneumatic leg support device includes:

the adjusting unit is arranged on the framework; the adjusting unit includes: the device comprises an extension member and at least two independently arranged adjusting air bag parts which are connected with the extension member in a sliding manner along a first direction, wherein the two adjusting air bag parts are arranged side by side along a second direction;

the adjustment airbag section includes: a support assembly and an air bag assembly which are matched with each other; the air bag component is provided with an inflation state, a deflation state and a pressure maintaining state, and the supporting component can be driven to move when the air bag component is switched between the three states; the support component is used for supporting the legs of the human body;

the control unit comprises an air source and an air pipe group communicated with the air source; the two air tube groups are respectively connected with different air bag assemblies, so that the different air bag assemblies are independently controlled to be switched among the inflation state, the deflation state and the pressure maintaining state, and different gesture requirements of the two legs are met.

According to the technical scheme provided by the embodiment of the application, the supporting component comprises: a pressure bearing plate; the airbag assembly includes: at least one first air bag for being matched with the bearing plate;

the bearing plate is slidably connected with the extension member along the first direction, the bearing plate is provided with a connecting section, and a first adjusting space is formed between the connecting section and the framework;

the first air bag is arranged in the first adjusting space; one side of the first air bag is connected with the connecting section, and the other side of the first air bag is connected with the framework;

when the first air bag is switched among the air charging state, the air discharging state and the pressure maintaining state, the pressure bearing plate can be driven to reciprocate along the first direction.

According to the technical scheme provided by the embodiment of the application, one side, close to the extension member, of the bearing plate is provided with at least one sliding connection part;

at least two sliding rails matched with the sliding connection parts are arranged on the extension member, and the sliding rails are used for being connected with the sliding connection parts in different support assemblies respectively.

According to the technical scheme provided by the embodiment of the application, the supporting component further comprises: a support plate; the airbag assembly further includes: at least one second bladder for cooperation with the support plate;

the support plate is provided with a main plate, and one end of the main plate, which is close to the framework, is movably connected with the bearing plate through an elastic clamping structure;

the second air bag is arranged on the upper surface of the bearing plate and is positioned between the bearing plate and the supporting plate;

and when the second air bag is switched among the inflation state, the deflation state and the pressure maintaining state, the second air bag can drive the supporting plate to swing by taking the elastic clamping structure as a fulcrum.

According to the technical scheme provided by the embodiment of the application, the supporting plate is also provided with side plates which are arranged on two sides of the main plate in parallel;

the extension member is provided with a containing groove matched with each side plate;

when the second air bag is in a complete air release state, the side plate can be flattened in the accommodating groove through the expansion of the first air bag to reciprocate along the first direction.

According to the technical scheme provided by the embodiment of the application, the elastic clamping structure is used for being matched with the second air bag to drive the supporting plate to swing;

the elastic clamping structure comprises:

the rotating shaft penetrates through the side plate to be connected with the bearing plate, and an accommodating space is formed between the rotating shaft and the main plate as well as between the rotating shaft and the bearing plate; wherein the rotating shaft is a swinging fulcrum of the supporting plate;

the elastic element is wound on the rotating shaft and is positioned in the accommodating space; two ends of the elastic element are respectively abutted against the supporting plate and the bearing plate;

the limiting blocks are respectively arranged at two ends of the rotating shaft.

According to the technical scheme provided by the embodiment of the application, the tracheal group at least comprises: two air pipes;

two air pipes in each air pipe group are respectively communicated with the first air bag and the second air bag; the air pipe is used for conveying the air provided by the air source to the first air bag and the second air bag.

According to the technical scheme provided by the embodiment of the application, the air source is internally provided with at least one control valve group;

the control valve group is arranged on the air pipes in the two air pipe groups and is used for controlling the air supply state of each air bag assembly.

According to the technical scheme provided by the embodiment of the application, the device further comprises a reset unit;

the reset unit includes: at least two reset portions, each of which corresponds to a different one of the adjustment airbag portions, respectively;

the reset portion includes: at least one first restoring element and/or at least one second restoring element; the first reset piece and the second reset piece are both used for being matched with the first air bag to drive the bearing plate to reciprocate along the first direction;

two ends of the first reset piece are respectively connected with the connecting section and the framework;

two ends of the second reset piece are respectively connected with the protruding part in the sliding rail and the sliding connecting part;

the first return element and the second return element may be of the type of an elastic band or a spring.

In a second aspect, a vehicle seat, to which the above-mentioned separated pneumatic leg support device is applied, further includes: the controller is used for sending control signals to the air source and the control valve so as to control the operation conditions of the air source and the control valve; the operating conditions include at least: start and stop.

In summary, the technical scheme specifically discloses a separated pneumatic leg supporting device and an automobile seat. Wherein, disconnect-type pneumatic shank strutting arrangement includes: an adjusting unit and a control unit. The adjusting unit sets up on the skeleton, and the adjusting unit includes: the device comprises an extension member and at least two independently arranged adjusting air bag parts which are in sliding connection with the extension member along a first direction, wherein the two adjusting air bag parts are arranged side by side along a second direction; the adjustment airbag section includes: a support assembly and an air bag assembly which are matched with each other; the air bag component has an inflation state, a deflation state and a pressure maintaining state, and can drive the supporting component to move when the air bag component is switched between the three states; the support component is used for supporting the legs of the human body; the control unit comprises an air source and an air pipe group communicated with the air source; the two air tube groups are respectively connected with different air bag assemblies, so that the different air bag assemblies are independently controlled to be switched among an inflation state, a deflation state and a pressure maintaining state, and different gesture requirements of the two legs are met.

To current shank strutting arrangement design as an organic whole, there is not to current automatic fender vehicle in driving process, the leg has different actions about, the right leg needs to be responsible for the switching of throttle and brake pedal, the left leg then need not operate pedal, this just makes the shank strutting arrangement of integration can't carry out the targeted support to the required gesture of leg about, and this application proposes the pneumatic shank strutting arrangement of disconnect-type through setting up two independent adjustment gasbag portions, alright under the multiple spot control of control unit, carry out different state switching for two adjustment gasbag portions can satisfy the gesture demand of leg difference about simultaneously.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:

fig. 1 is a schematic structural view of a separate pneumatic leg support device.

Fig. 2 is an assembled schematic view of a split pneumatic leg support device.

Fig. 3 is a schematic view showing the support plates corresponding to the left and right legs in different positions in the separated pneumatic leg support device.

Fig. 4 is a schematic view of a split pneumatic leg support device in a sliding state.

Fig. 5 is a schematic view of a separate pneumatic leg support device with support plates corresponding to the left and right legs at different elevation angles.

Fig. 6 is a partial schematic view of an extension member in a split pneumatic leg support.

Fig. 7 is a schematic diagram of a first bladder action in a split pneumatic leg support device.

Fig. 8 is a schematic diagram of the operation of the second bladder (including the third restoring member) in a split pneumatic leg support device.

Fig. 9 is a schematic diagram of the operation of the second bladder (excluding the third restoring member) in a split pneumatic leg support device.

FIG. 10 is a schematic view of the torsion spring structure when the elastic element is selected as the torsion spring.

Reference numerals in the drawings: 100. an automobile seat; 101. a skeleton; 200. an extension member; 201. a slide rail; 202. a boss; 300. a support assembly; 301. a pressure bearing plate; 302. a support plate; 302-1, a motherboard; 302-2, side plates; 303. a rotating shaft; 304. an elastic element; 400. an airbag module; 401. a first air bag; 402. a second air bag; 500. a control unit; 501. a gas source; 502. an air pipe; 601. a first reset member; 602. a second reset member; 603. and a third reset piece.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

In order to solve the problem that the left leg and the right leg of the existing automatic transmission vehicle have different actions in the driving process, the right leg needs to be responsible for switching of an accelerator pedal and a brake pedal, the left leg does not need to operate the pedal, and the integrated leg supporting device cannot pertinently support the required postures of the left leg and the right leg, the embodiment discloses a separated pneumatic leg supporting device.

Specifically, the separated pneumatic leg support device is disposed on the frame 101 of the car seat 100, for supporting the legs of the human body; referring to fig. 1 and 2, a schematic structural diagram and an assembled schematic diagram of a split pneumatic leg support device according to the present embodiment are provided, where the split pneumatic leg support device includes:

an adjusting unit provided on the skeleton 101; the adjusting unit includes: the device comprises an extension member 200 and at least two independently arranged adjusting air bag parts which are in sliding connection with the extension member 200 along a first direction, wherein the two adjusting air bag parts are arranged side by side along a second direction; the second direction is perpendicular to the first direction;

the adjusting unit is a main leg adjusting unit of the separated pneumatic leg supporting device, and when a driver or a passenger sits on the car seat 100, both legs are respectively supported by the two airbag adjusting parts; here, the first direction is referred to the direction of arrow X in fig. 1; the second direction is seen in the direction of arrow Y in fig. 1.

The adjustment airbag section includes: a support assembly 300 and an air bag assembly 400 that cooperate with each other; the air bag module 400 has an inflated state, a deflated state and a pressure maintaining state, and when the air bag module 400 is switched between the three states, the support module 300 can be driven to move; the support assembly 300 contacts the legs of the driver or passenger seated on the car seat 100, thereby forming support for the legs of the human body.

Wherein, the airbag module 400 can drive the support module 300 to move along the first direction when in the inflated state, and then drive the support module 300 to move away from the skeleton 101, which can be understood with reference to fig. 3 and 4; in the air-releasing state, the air bag assembly 400 can also drive the support assembly 300 to move along the first direction, and at this time, drive the support assembly 300 to move towards the direction approaching to the skeleton 101; while the air bag module 400 is in a pressure-maintaining state, the air bag module 400 keeps the current state not to be inflated or deflated, and the supporting module 300 keeps the current position to be still, so that the legs are continuously supported.

The control unit 500, the control unit 500 includes an air source 501 and an air pipe group communicated with the air source 501; the two air tube groups are respectively connected with different air bag assemblies 400, so that the different air bag assemblies 400 are independently controlled to be switched among an inflating state, a deflating state and a pressure maintaining state, and different gesture requirements of the two legs are met.

The control unit is a key for controlling each air bag module 400 to independently operate, and is also a unit for switching the state change of the air bag module 400, and the air source 501 can be an air pump or an air storage tank. Because the control unit 500 is connected with the air bag assemblies 400 through different air pipe groups respectively, two air bag assemblies 400 naturally form separate control points, besides the condition that two adjusting air bag portions share one air source 501, each adjusting air bag portion corresponds to one air source 501 respectively, and the specific condition can be adjusted by technicians according to actual requirements.

As shown in fig. 1, the support assembly 300 includes: bearing plate 301; the airbag module 400 includes: at least one first bladder 401 for cooperation with the pressure bearing plate 301;

the bearing plate 301, the bearing plate 301 is slidably connected with the extension member 200 along the first direction, the bearing plate 301 has a connection section, and a first adjusting space is formed between the connection section and the framework 101;

the first air bag 401 is disposed in the first adjustment space; one side of the first air bag 401 is connected with the connecting section, and the other side of the first air bag is connected with the framework 101;

when the first air bag 401 is switched among the inflated state, the deflated state and the pressure maintaining state, the first air bag 401 can expand and contract along the direction parallel to the first direction, and further can drive the bearing plate 301 to reciprocate along the first direction.

Further, the sliding of the bearing plate 301 and the extension member 200 is achieved by:

the side of the bearing plate 301 near the extension member 200 is provided with at least one sliding connection part for sliding connection with the extension member 200;

referring to fig. 4, the extension member 200 is also provided with at least two sliding rails 201 matching with the sliding connection parts, and the sliding rails 201 are used for respectively connecting with the sliding connection parts in different support assemblies 300;

it should be noted that the number and shape of the sliding rails 201 on the extension member 200 are problematic; the number of the sliding rails 201 can be adjusted according to the sliding connection parts arranged on the bearing plates 301 in each adjusting air bag part, and as each bearing plate 301 is provided with at least one sliding connection part, the extending member 200 is provided with at least two sliding rails 201; the form of the slide rail 201 may be a convex slide rail or a concave slide rail, and when the form of the slide rail 201 is changed, the state of the slide connection portion needs to be adaptively adjusted.

Specifically, the support assembly 300 further includes: a support plate 302; the airbag assembly 400 further includes: at least one second bladder 402 for cooperating with the support plate 302;

the support plate 302 has a main plate 302-1 and two side plates disposed in parallel on both sides of the main plate 302-1;

one end of the main board, which is close to the framework 101, is movably connected with the bearing plate 301 through an elastic clamping structure, and is basically movably connected through the connection of the side plate 302-2 and the elastic clamping structure.

The second air bag 402 is arranged on the upper surface of the bearing plate 301 and is positioned between the bearing plate and the supporting plate;

when the second air bag 402 is switched among the inflated state, the deflated state and the pressure maintaining state, the second air bag 402 can expand and contract according to the self-shape, and further can drive the supporting plate 302 to swing by taking the elastic clamping structure as a supporting point.

Further, the extending member 200 is provided with a receiving groove matched with each side plate, and in practical application, the extending member 200 should be provided with four receiving grooves for receiving each side plate 302-2;

when the second air bag 402 is in a completely deflated state, the supporting plate 302 is not lifted by the second air bag 402, and at this time, the side plate 302-2 of the supporting plate 302 can drive the bearing plate 301 to reciprocate in the first direction in the accommodating groove through the expansion and contraction of the first air bag 401.

The operation of the first airbag 401 and the second airbag 402 will be described with reference to fig. 7 and 8. When the first air bag 401 is switched among the air-filled state, the air-out state and the pressure-maintaining state, the pressure-bearing plate 301 can be driven to reciprocate along the first direction, in this case, the support of the legs along the first direction when the driver or the passenger sits on the automobile seat 100 can be corresponded, for example, the leg length of the adult male in teenagers is inconsistent, the required posture of the leg supporting device is also inconsistent, and when the two air bags are transferred, certain adjustment is required between the air-filled state and the air-out state, the pressure-bearing plate 301 is driven to move in the direction which is close to or far from the automobile seat 100 until reaching the position (pressure-maintaining state) meeting the self requirement, that is, the pressure-bearing plate 301 is driven to reciprocate along the first direction.

The second air bag 402 can drive the support plate 302 to swing with the elastic clamping structure as a pivot when switching among the air-filled state, the air-leakage state and the pressure-maintaining state, in this case, the adjustment corresponds to the adjustment of the angle of the separated pneumatic leg support device, which can be understood that the second air bag 402 can drive the support plate 302 to raise or lower when switching among the air-filled state, the air-leakage state and the pressure-maintaining state so as to meet the requirement of people on the leg raising angle, and the action process of the second air bag 402 can be seen in fig. 5; it should be noted that the first airbag 401 and the second airbag 402 may be primary airbags or multi-stage airbags (see fig. 5 for the selection of the second airbag body 402 at the left leg), and the specific selection may be adjusted by a technician according to the needs.

Further, the independent control of the two adjustment airbag sections can be further described with reference to fig. 3 and 5.

Referring to fig. 3, the bearing plate 301 corresponding to the right leg among the two adjustment air bag portions is in an initial state of inextensibility, and the bearing plate 301 corresponding to the left leg is in a state of being extended a certain distance (relative to the extension member 200); then, as can be seen from the above description of the "operation procedure of the first airbag 401 and the second airbag 402", the first airbag 401 in the two adjustment airbag sections is also in a different state; specifically, the first air bag 401 for driving the bearing plate 301 corresponding to the right leg to move is currently in a completely deflated state; at this time, the first air bag 401 for driving the bearing plate 301 corresponding to the left leg to move is currently in an inflated state (in order to highlight the characteristic that two air bags in different states can make the bearing plate 301 in different positions, so the pressure maintaining state is omitted here, and when the supporting length is adjusted to be satisfactory for the passenger car, the inflation and deflation operation of the first air bag 401 is stopped, the supporting length is maintained, the air volume state of the first air bag 401 is maintained, and the air bag is in the pressure maintaining state at this time), so that the purpose of driving the bearing plate 301 to extend for a certain distance is achieved.

Referring to fig. 5, the support plate 302 corresponding to the left leg is in a raised state, and the support plate 302 corresponding to the right leg is in an initial state, which is not raised, in the two adjustment air bag portions; also, as can be seen from the above description of the "operation process of the first airbag 401 and the second airbag 402", the second airbag 402 in the two adjustment airbag sections is also in a different state; specifically, the second air bag 402 for driving the support plate 302 corresponding to the left leg to move is currently in an inflated state (in order to highlight the characteristic that two air bags in different states can enable the support plate 302 to have different opening angles, so the pressure maintaining state is ignored here, and when the support angle is adjusted to be satisfactory for the passenger car, the operation of inflating and deflating the second air bag 402 is stopped, the support angle is maintained, the air volume state of the second air bag 402 is maintained, and at the moment, the second air bag 402 is in the pressure maintaining state), so that the action of driving the support plate 302 to be capable of raising a bit angle is achieved; while the second bladder 402, which is now used to move the support plate 302 corresponding to the right leg, is currently in a fully deflated state.

In summary, the two adjusting air bag portions can have different postures through independent control of the corresponding air bags to meet the requirements of people on different postures of the left leg and the right leg, and the above description is only for illustrating the characteristics of the device about independent control, but not for limiting the adjusting schemes that can be formed by the two adjusting air bag portions, for example, the supporting plates 302 corresponding to the left leg and the right leg can be in an inflated state but have different lifting angles, which can be achieved by inflating the second air bag 402 with different amounts of air.

As shown in connection with fig. 7 and 8 or fig. 9, the elastic clamping structure includes:

a rotating shaft 303, wherein the rotating shaft 303 penetrates through the side plate 302-2 to be connected with the bearing plate 301 (for example, a hole is punched in the side plate 302-2 of the supporting plate 302, the rotating shaft 303 is connected with the bearing plate 301 through the hole), and an accommodating space is formed between the rotating shaft 303 and the main plate 302-1 and between the rotating shaft 303 and the bearing plate 301, and is used for reserving a setting space of an elastic element 304 described below; the rotation shaft 303 is a swing fulcrum of the support plate 302, that is, the support plate 302 swings upward or downward with the rotation shaft 303 as the fulcrum.

The elastic element 304 is wound on the rotating shaft 303, and the elastic element 304 is positioned in the accommodating space; the two ends of the elastic element 304 are respectively abutted against the supporting plate 302 and the bearing plate 301, and the elastic element 304 can be matched with the second air bag 402 to drive the supporting plate 302 to swing, wherein the type of the elastic element 304 can be a torsion spring, for example, the torsion spring shown in fig. 10 (the middle part of the torsion spring is used for accommodating the rotating shaft 303); the directions or the angle settings of the two end parts of the torsion spring are set according to actual needs, and the torsion spring is not limited to the situation of schematic illustration.

The limiting blocks are respectively arranged at two ends of the rotating shaft 303, and the limiting blocks are used for ensuring that the rotating shaft 303 can be fixed between the bearing plate 301 and the supporting plate 302.

As shown in fig. 1, the tracheal group includes at least: two air pipes 502;

two air pipes in each air pipe group are respectively communicated with a first air bag 401 and a second air bag 402; the gas tube 502 is used to deliver gas provided by a gas source to the first bladder 401 and the second bladder 402.

Since the number of adjustment balloon portions is at least two, and each adjustment balloon portion in turn includes at least one first balloon 401 and at least one second balloon 402, each balloon group also includes at least two air tubes 502 for the number of balloon bodies of each adjustment balloon portion.

Further, the air source 501 is provided with at least one control valve group;

in practical application, in order to ensure independent control of each air bag piece, the control valve group should include four control valves, each control valve is connected with one air bag, for example, two-position three-way valve bodies are connected in series with two-position two-way valve bodies, or one-way valves are connected in series with two-position three-way valve bodies, so that the effects of controlling the air bag to inflate, deflate and maintain pressure can be achieved; the control valve is provided with a gas leakage port, a gas inlet and a gas outlet, when the gas inlet is communicated with the gas outlet, gas emitted by the gas source 501 enters the corresponding air bag through the gas pipe 502, and the air bag is in an inflated state; when the air leakage opening is opened, the stored air in the air bag can be released through the air leakage opening, and the air bag is in the air leakage state.

The control valve is arranged on the air pipes 502 in the two air pipe groups and is used for controlling the air supply state of each air pipe 502, so that split control of a plurality of air bags is realized, when a human body has different gesture requirements on two different air bag assemblies 400, the state of different first air bags 401 and second air bags 402 can be switched by conveying the air in each air pipe 502 through the control valve, and the corresponding pressure bearing plate 301 and supporting plate 302 are driven to move or swing to a position or a lifting angle which meets the human body requirements; in addition, the specific connection relationship between the air source 501, the air pipe 502 and the control valve set may be that the output end of the air source 501 is connected with the air pipe 502, the other free end of the air pipe 502 is connected with the air port of the control valve set, and then the other air port of the control valve set is connected to the corresponding air bag through the air pipe 502.

In addition, as shown in fig. 6, 7 and 8, the separated pneumatic leg support device further includes a reset unit;

the reset unit includes: at least two reset portions, each reset portion corresponding to a different adjustment airbag portion, respectively;

the reset portion includes: at least one first reset element 601 and/or at least one second reset element 602; the first reset piece 601 and the second reset piece 602 are both used for driving the bearing plate 301 to reciprocate along the first direction in cooperation with the first air bag 401;

the two ends of the first restoring member 601 are respectively connected with the connecting section and the framework 101, and preferably, an elastic belt is selected for the first restoring member 601.

The two ends of the second restoring member 602 are respectively connected with the protruding portion 202 (see the protruding step in fig. 6) and the sliding connection portion in the sliding rail 201, and preferably, the second restoring member 602 is a spring.

It should be noted that the first reset element 601 and the second reset element 602 may be selected at the same time, or one of them may be used. The first return member 601 and the second return member 602 may be of the type of elastic bands or springs; in addition, the above-described "elastic clamping structure" also plays a similar role to the restoring member in nature, so that a third restoring member 603 may be provided between the pressure bearing plate 301 and the support plate 302 as well, and the type of the third restoring member 603 may be an elastic band or a spring as well.

Example 2

Referring to fig. 2, this embodiment provides an automobile seat, to which the split pneumatic leg support device of embodiment 1 is applied, further including: the controller is used for sending control signals to the air source 501 and the control valve so as to control the operation conditions of the air source 501 and the control valve; the operation conditions at least comprise: start and stop.

As can be seen from the description of embodiment 1, the control valve controls the air supply state of each air pipe 502, and the air supply state is switched by switching the communication of each air port in the control valve, so the controller can complete the switching of the state of the air bag module 400 by controlling the opening or closing of the air source 501 and the communication and opening of each air port of the control valve, so that the separated pneumatic leg support device can meet the gesture requirement of the driver or the passenger, and a comfortable riding environment is provided for the driver or the passenger.

Furthermore, the pneumatic adjustment system comprises at least: the massage device comprises a massage system, a waist support system, a flank support system and a hardness adjusting system; the pneumatic adjusting system and the separated pneumatic leg supporting device share the same air source 501 and the control valve group, so that development cost and cycle time are reduced better.

The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the utility model. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

Claims (10)

1. The separated pneumatic leg supporting device is characterized by being arranged on a framework (101) of an automobile seat (100) and used for supporting legs of a human body;

the split pneumatic leg support device includes:

the adjusting unit is arranged on the framework (101); the adjusting unit includes: an extension member (200) and at least two independently arranged adjustment airbag sections slidably connected to the extension member (200) in a first direction, the two adjustment airbag sections being arranged side by side in a second direction;

the adjustment airbag section includes: a support assembly (300) and an airbag assembly (400) that cooperate with each other; the air bag component (400) is provided with an inflation state, a deflation state and a pressure maintaining state, and the air bag component (400) can drive the supporting component (300) to move when being switched among three states; the support assembly (300) is used for supporting the legs of a human body;

a control unit (500), the control unit (500) comprising an air source (501) and an air tube set in communication with the air source (501); the two air tube groups are respectively connected with different air bag assemblies (400), so that the different air bag assemblies (400) are independently controlled to be switched among the inflation state, the deflation state and the pressure maintaining state, and different gesture requirements of the two legs are met.

2. A split pneumatic leg support assembly as defined in claim 1, wherein,

the support assembly (300) includes: a pressure-bearing plate (301); the airbag module (400) includes: at least one first bladder (401) for cooperation with the bearing plate (301);

the bearing plate (301) is slidably connected with the extension member (200) along the first direction, the bearing plate (301) is provided with a connecting section, and a first adjusting space is formed between the connecting section and the framework (101);

the first air bag (401) is arranged in the first adjusting space; one side of the first air bag (401) is connected with the connecting section, and the other side of the first air bag is connected with the framework (101);

when the first air bag (401) is switched among the inflation state, the deflation state and the pressure maintaining state, the pressure bearing plate (301) can be driven to reciprocate along the first direction.

3. A split pneumatic leg support assembly as defined in claim 2, wherein,

at least one sliding connection part is arranged on one side of the bearing plate (301) close to the extension member (200);

at least two sliding rails (201) matched with the sliding connection parts are arranged on the extension member (200), and the sliding rails (201) are used for being connected with the sliding connection parts in different support assemblies (300) respectively.

4. A split pneumatic leg support assembly as claimed in claim 3, wherein,

the support assembly (300) further comprises: a support plate (302); the airbag assembly (400) further includes: at least one second bladder (402) for cooperation with the support plate (302);

the supporting plate (302) is provided with a main plate (302-1), and one end of the main plate (302-1) close to the framework (101) is movably connected with the bearing plate (301) through an elastic clamping structure;

the second air bag (402) is arranged on the upper surface of the bearing plate (301) and is positioned between the bearing plate (301) and the supporting plate (302);

the second air bag (402) can drive the supporting plate (302) to swing by taking the elastic clamping structure as a fulcrum when being switched among the inflation state, the deflation state and the pressure maintaining state.

5. A split pneumatic leg support assembly as claimed in claim 4, wherein the support plate (302) further has side plates (302-2) disposed in parallel on either side of the main plate (302-1);

the extension component (200) is provided with a containing groove matched with each side plate (302-2);

when the second air bag (402) is in a completely deflated state, the side plate (302-2) can reciprocate in the first direction in the accommodating groove through the expansion and contraction of the first air bag (401).

6. A split pneumatic leg support assembly as defined in claim 5, wherein,

the elastic clamping structure is used for being matched with the second air bag (402) to drive the supporting plate (302) to swing;

the elastic clamping structure comprises:

the rotating shaft (303) penetrates through the side plate (302-2) to be connected with the bearing plate (301), and an accommodating space is reserved between the rotating shaft (303) and the main plate (302-1) and between the rotating shaft and the bearing plate (301); wherein the rotating shaft (303) is a swinging fulcrum of the supporting plate (302);

-an elastic element (304), the elastic element (304) being wound on the spindle (303), and the elastic element (304) being located in the accommodation space; both ends of the elastic element (304) are respectively abutted with the supporting plate (302) and the bearing plate (301);

the limiting blocks are respectively arranged at two ends of the rotating shaft (303).

7. A split pneumatic leg support assembly as defined in claim 4, wherein,

the tracheal group comprises at least: two air pipes (502);

two air pipes in each air pipe group are respectively communicated with the first air bag (401) and the second air bag (402); the gas pipe (502) is used for conveying the gas provided by the gas source to the first gas bag (401) and the second gas bag (402).

8. A split pneumatic leg support assembly as defined in claim 7, wherein,

the air source (501) is internally provided with at least one control valve group;

the control valve group is arranged on the air pipes (502) in the two air pipe groups and is used for controlling the air supply state of each air bag assembly.

9. A split pneumatic leg support assembly as claimed in any one of claims 7 or 8, further comprising a reset unit;

the reset unit includes: at least two reset portions, each of which corresponds to a different one of the adjustment airbag portions, respectively;

the reset portion includes: at least one first reset element (601) and/or at least one second reset element (602); the first reset piece (601) and the second reset piece (602) are both used for being matched with the first air bag (401) to drive the bearing plate (301) to reciprocate along the first direction;

two ends of the first reset piece (601) are respectively connected with the connecting section and the framework (101);

two ends of the second reset piece (602) are respectively connected with the protruding part (202) in the sliding rail (201) and the sliding connection part;

the first return element (601) and the second return element (602) may be of the type of an elastic band or a spring.

10. A car seat to which a separate pneumatic leg support device according to any one of claims 1 to 9 is applied, further comprising: the controller is used for sending control signals to the air source (501) and the control valve so as to control the operation conditions of the air source (501) and the control valve; the operating conditions include at least: start and stop.