CN216374272U

CN216374272U - Pressure detection device for vehicle seat

Info

Publication number: CN216374272U
Application number: CN202122860120.7U
Authority: CN
Inventors: 田海军
Original assignee: Shanghai Zhenyun Electronic Technology Co ltd
Current assignee: Shanghai Zhenyun Electronic Technology Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-04-26
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses a pressure detection device for a vehicle seat, which belongs to the technical field of automobiles and comprises an underframe, wherein the upper surface of the underframe is fixedly connected with a base, the upper surface of the base is provided with a soft layer, and the inner wall of the base is connected with the same pull rope in a sliding manner through a plurality of slide holes. This a pressure measurement for automobile seat, through setting up the stay cord, ceramic post and gangbar, synchronous stay cord can realize the good cooperation with the toughness steel sheet according to the suction of negative pressure, it can not cross soft and keep good elasticity and comfort level to realize the seat, jolt to the vehicle has better buffering effect, use in jolting and the freight train to great jolting all has fine protection effect to personnel's lumbar vertebrae, make can realize the weight monitoring to the small-mass object under its whole user state, simultaneously to the monitoring of taking in the human body, synchronous can play good laminating and buffering effect to the vehicle.

Description

Pressure detection device for vehicle seat

Technical Field

The utility model belongs to the technical field of automobiles, and particularly relates to a pressure detection device for an automobile seat.

Background

Common seat functions are seat memory, seat heating, seat ventilation and seat massage. The seat memory can store the seat position, and the seat heating refers to an electric heating device in the seat. Generally, the leather seat is made of leather materials, and the leather seat is heated in winter, so that a person cannot feel cold when sitting on the buttock in cold winter. Most electric heating devices have the temperature adjusting function, and seat ventilation is a 'sunstroke prevention device' of an air conditioner of an automobile seat. Although the automatic air conditioner can keep the constant temperature in the vehicle in summer, the body of a passenger is tightly contacted with the seat, air at the contact part is not circulated, sweat is not discharged favorably, and people feel uncomfortable. The ventilation circulation system unique to the seat ventilation air conditioner continuously enables fresh air to flow out from the small holes in the seat cushion and the backrest, prevents the buttocks and the back from accumulating sweat, provides a comfortable riding environment, effectively improves the ventilation environment of the contact part of a human body and a seat surface, and enables the body to be dry, comfortable and comfortable on the contact surface of the seat even if the seat is taken for a long time

Aiming at the current seat function, the seat of the vehicle needs to have the function of sensing the human body to distinguish whether the seat is placed as an article, the conventional solution is that the seat base and the backrest are both provided with a pressure detection sensing unit, and aiming at the pressure detection, the seat base and the backrest need to be mutually matched with multiple functions of the seat, the seat ventilation seat is not mutually affected in heating, and aiming at the current vehicle seat, the accurate detection of the human body and the detection of the human body riding weight can not be realized.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above defects of the prior art, the utility model provides a pressure detection device for a vehicle seat, which solves the problems that the conventional solution is to arrange a pressure detection sensing unit on a seat base and a backrest, the pressure detection sensing unit needs to be matched with multiple functions of the seat, the heating of a ventilation seat of the seat is not affected, and the accurate detection of a human body and the detection of the riding weight of the human body cannot be realized for the current vehicle seat. To a problem of (a).

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a pressure measurement for automobile-used seat, includes the chassis, the last fixed surface of chassis is connected with the base, the upper surface of base is provided with soft layer, the inner wall of base has same stay cord through a plurality of slide opening sliding connection who sets up, the surperficial sliding connection of stay cord has a plurality of pulley, the one end of pulley is through the inner wall of round pin axle swing joint at the base, the one end fixed connection of stay cord is at the inner wall of base, the airtight storehouse of right side fixedly connected with of base, the one-way gas storehouse of right side fixedly connected with of airtight storehouse.

The upper surface in one-way gas storehouse is provided with the negative pressure storehouse, the upper surface in negative pressure storehouse is provided with the ceramic post, the inner wall sliding connection in airtight storehouse has first piston, the left surface of first piston and the right-hand member fixed connection of first spring, the left end of first spring and the right flank fixed connection of snap ring, the surperficial joint of snap ring is at the left end in airtight storehouse, the inner wall sliding connection in one-way gas storehouse has the ball valve, the right flank of ball valve and the left end fixed connection of second spring, the solid fixed ring of right-hand member fixedly connected with of second spring, gu fixed ring's surperficial joint is at the inner wall in one-way gas storehouse.

The inner wall sliding connection in negative pressure storehouse has the second piston, the left end of second piston and the right-hand member fixed connection of third spring, the left end of third spring and the left surface fixed connection of negative pressure storehouse inner wall, the right flank of second piston and the bottom fixed connection of gangbar, the surface winding of ceramic post has the coil, the upper surface of ceramic post is provided with the metal pole, the surperficial sliding connection of metal pole has the gleitbretter.

As a further scheme of the utility model: the inner wall of the airtight bin is fixedly connected with the surface of the positioning ring, and the first spring is connected in the positioning ring in a sliding mode.

As a further scheme of the utility model: the left surface of ball valve closely laminates there is the sealing washer, the surperficial joint of sealing washer is at the inner wall in one-way gas storehouse, the sealing washer is the rubber circle.

As a further scheme of the utility model: the top of gangbar and the right flank fixed connection of gleitbretter, the gangbar is the U-shaped setting, the surperficial overlap joint of gleitbretter and coil.

As a further scheme of the utility model: the left side face of the first piston is fixedly connected with a connecting rod, the connecting rod is located in the first spring, the locating ring and the clamping ring, and the left end of the connecting rod is fixedly connected with the other end of the pull rope.

As a further scheme of the utility model: the inner wall fixedly connected with toughness steel sheet of base, toughness steel sheet is the slope form and fixes the inner wall at the base, toughness steel sheet is the bending of 1500R radian.

As a further scheme of the utility model: the left side face of the inner wall of the negative pressure bin is connected with a communicating pipe in a clamping mode, and the left end of the communicating pipe is communicated with the right side face of the inner wall of the airtight bin.

Compared with the prior art, the utility model has the beneficial effects that:

1. the pressure detection device for the vehicle seat comprises a stay cord, pulleys, a connecting rod, a first piston, a first spring, a clamping ring, a communicating pipe, a negative pressure bin, a ceramic column and a linkage rod, wherein when the pressure detection device is used, the stay cord is pressed and slides on the surfaces of a plurality of pulleys through the deformation of a soft layer in the sitting process of a human body, the first piston is pulled by the synchronous stay cord through the connecting rod, the first piston is enabled to form a larger negative pressure state in an airtight bin under the action of the tension, a third spring is pressed by a synchronous second piston under the action of the negative pressure, the second piston drives a sliding sheet to slide on the surface of a metal rod through the linkage rod, meanwhile, the sliding sheet slides on the limiting surface of the ceramic column, when the sliding sheet moves to different positions, the resistance value of current flowing through a coil and the sliding sheet changes, and the synchronous resistor is matched with the conventional weight range of the human body according to the resistance value range, the weight of the seat can be synchronously known according to real-time resistance change in a state of being smaller than the weight, the structure is adopted, in the process of taking a person with heavier weight, the first piston of the seat is subjected to larger pulling force, negative pressure in the negative pressure cabin of the seat is larger, synchronous pull ropes can be matched with the tough steel sheets well according to the suction force of the negative pressure, the seat cannot be too soft and keeps good elasticity and comfort, good buffering effect is achieved for bumping of a vehicle, good protection effect is achieved for lumbar vertebrae of the person for large bumping and use in a truck, weight monitoring for small-mass objects can be achieved in the whole use state of the seat, meanwhile, good fitting and buffering effect can be achieved for the vehicle synchronously.

2. The pressure detection device for the vehicle seat comprises a negative pressure bin, a one-way gas bin, a second spring, a ball valve, a sealing ring, a first spring and a first piston, wherein when the pressure detection device is used, the first piston is rapidly reset under the action of negative pressure along with the loss of gravity of a pull rope, the third spring drives the second piston to synchronously reset, the first spring applies a reset pressure to the first piston to enable the first piston to move rightwards to reach a specified position, if redundant gas exists in the pressure detection device, the gas is discharged by pressing the ball valve and the second spring, when the interior of the airtight bin is in a negative pressure state, the ball valve is subjected to the second spring and the negative pressure state to enable the ball valve to keep the one-way exhaust effect, the mode can realize the reset of the internal gas pressure every time when the pressure detection device is placed, and ensures that the initial state is always kept for long-time use, the stability of the whole operation is improved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of a base according to the present invention;

FIG. 3 is a schematic cross-sectional view of a base according to the present invention;

FIG. 4 is a schematic three-dimensional structure of the airtight cabin of the present invention;

FIG. 5 is a schematic diagram of the left-side perspective cross-sectional structure of the airtight chamber of the present invention;

FIG. 6 is a schematic diagram of the right-side perspective cross-sectional structure of the airtight chamber of the present invention;

FIG. 7 is a schematic cross-sectional view of a unidirectional gas bin according to the present invention;

FIG. 8 is a schematic cross-sectional view of a negative pressure chamber according to the present invention;

FIG. 9 is a schematic perspective view of a ceramic post according to the present invention;

in the figure: the device comprises a base frame 1, a base 2, a soft layer 3, a pull rope 4, an airtight bin 5, a one-way air bin 6, a negative pressure bin 7, a ceramic column 8, a first piston 9, a second piston 10, a first spring 11, a second spring 12, a third spring 13, a positioning ring 14, a snap ring 15, a connecting rod 16, a sealing ring 17, a ball valve 18, a fixing ring 19, a linkage rod 20, a communicating pipe 21, a metal rod 22, a coil 23, a slip sheet 24, a pulley 25 and a tough steel sheet 26.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 9, the present invention provides a technical solution: the utility model provides a pressure measurement for automobile-used seat, including chassis 1, the last fixed surface of chassis 1 is connected with base 2, the upper surface of base 2 is provided with soft layer 3, the inner wall of base 2 has same stay cord 4 through a plurality of slide opening sliding connection who sets up, the surperficial sliding connection of stay cord 4 has a plurality of pulley 25, round pin axle swing joint is passed through at the inner wall of base 2 in the one end of pulley 25, the one end fixed connection of stay cord 4 is at the inner wall of base 2, the right side fixed connection of base 2 has airtight storehouse 5, the one-way gas storehouse 6 of the right side fixed connection of airtight storehouse 5.

The upper surface in one-way gas storehouse 6 is provided with negative pressure storehouse 7, the upper surface in negative pressure storehouse 7 is provided with ceramic post 8, the inner wall sliding connection in airtight storehouse 5 has first piston 9, the left surface of first piston 9 and the right-hand member fixed connection of first spring 11, the left end of first spring 11 and the right flank fixed connection of snap ring 15, the surperficial joint of snap ring 15 is at the left end in airtight storehouse 5, the inner wall sliding connection in one-way gas storehouse 6 has ball valve 18, the right flank of ball valve 18 and the left end fixed connection of second spring 12, the solid fixed ring 19 of right-hand member fixedly connected with of second spring 12, the surperficial joint of solid fixed ring 19 is at the inner wall in one-way gas storehouse 6.

The inner wall sliding connection of negative pressure storehouse 7 has second piston 10, the left end of second piston 10 and the right-hand member fixed connection of third spring 13, the left end of third spring 13 and the left surface fixed connection of negative pressure storehouse 7 inner wall, the right flank of second piston 10 and the bottom fixed connection of gangbar 20, the surface winding of ceramic post 8 has coil 23, the upper surface of ceramic post 8 is provided with metal rod 22, the surperficial sliding connection of metal rod 22 has gleitbretter 24.

Specifically, as shown in fig. 2, 5 and 7, a sealing ring 17 is tightly attached to the left side surface of the ball valve 18, the surface of the sealing ring 17 is clamped on the inner wall of the one-way air chamber 6, the sealing ring 17 is a rubber ring, a connecting rod 16 is fixedly connected to the left side surface of the first piston 9, the connecting rod 16 is located in the first spring 11, the locating ring 14 and the snap ring 15, the left end of the connecting rod 16 is fixedly connected to the other end of the pull rope 4, a flexible steel sheet 26 is fixedly connected to the inner wall of the base 2, the flexible steel sheet 26 is obliquely fixed to the inner wall of the base 2, the flexible steel sheet 26 is bent at 1500R radian, by arranging the sealing ring 17, the sealing ring 17 can maintain a good matching and sealing effect with the ball valve 18 when in use, by arranging the connecting rod 16, the connecting rod 16 can achieve good connecting and fixing effects with the pull rope 4, and can maintain directional tension when acting force is applied to the first piston 9, through setting up toughness steel sheet 26, toughness steel sheet 26 can realize the effect that supports stay cord 4, and after stay cord 4 crooked certain degree, it can keep good supporting effect, can cooperate it to play the effect that the elasticity supported simultaneously, promotes the travelling comfort of seat, and toughness steel sheet 26 is the arc, rather than can keep good air current between stay cord 4 to flow, can realize the good ventilative effect of seat ventilation in-process.

Specifically, as shown in fig. 1, 6 and 8, the inner wall of the airtight cabin 5 is fixedly connected with the surface of the positioning ring 14, the first spring 11 is slidably connected in the positioning ring 14, the top end of the linkage rod 20 is fixedly connected with the right side surface of the slip sheet 24, the linkage rod 20 is arranged in a U shape, the slip sheet 24 is overlapped with the surface of the coil 23, the left side surface of the inner wall of the negative pressure cabin 7 is connected with the communicating pipe 21 in a clamping manner, and the left end of the communicating pipe 21 is communicated with the right side surface of the inner wall of the airtight cabin 5.

Through setting up position circle 14, position circle 14 can keep carrying out fine spacing to first piston 9, when making its piston move the biggest active position, receives stopping of position circle 14, possesses good protection effect to first spring 11, through setting up gangbar 20, gangbar 20 can keep good connection and driven effect when using, through setting up communicating pipe 21, communicating pipe 21 can keep keeping atmospheric pressure constant voltage state between negative pressure storehouse 7 and the airtight storehouse 5.

The working principle is as follows:

s1, when in use, the soft layer 3 deforms to press the pull rope 4 and slide on the surfaces of the pulleys 25 in the sitting process of a human body, the synchronous pull rope 4 pulls the first piston 9 through the connecting rod 16, the first piston 9 is enabled to form a large negative pressure state in the airtight cabin 5 under the action of the pull force, the synchronous second piston 10 is enabled to press the third spring 13 under the action of the negative pressure, and the second piston 10 drives the slide piece 24 to slide on the surface of the metal rod 22 through the linkage rod 20;

s2, the sliding sheet 24 slides on the limiting surface of the ceramic column 8, when the sliding sheet moves to different positions, the resistance value of the current flowing through the coil 23 and the sliding sheet 24 changes, the resistance value range synchronously matches with the normal weight range of a human body according to the resistance value of the resistor, the weight of the sliding sheet 24 can be known according to the real-time resistance change under the condition that the resistance value is smaller than the weight, meanwhile, by adopting the structure, the first piston 9 of the sliding sheet can be subjected to larger pulling force in the process that a person with heavier weight sits, the negative pressure in the negative pressure cabin 7 is larger, the synchronous pull rope 4 can be matched and supported with the tough steel sheet 26 according to the suction force of the negative pressure, and the first piston 9 of the sliding sheet can be quickly reset under the action of the negative pressure under the action of the pull rope 4 losing the action of the gravity in the process that the person gets up;

s3, synchronously, the third spring 13 drives the second piston 10 to reset synchronously, the first spring 11 applies a reset pressure to the first piston 9 to enable the first piston 9 to move rightwards to a specified position, if redundant gas exists in the airtight cabin, the gas is discharged through the pressure ball valve 18 and the second spring 12, when the inside of the airtight cabin 5 is in a negative pressure state, the ball valve 18 is subjected to the second spring 12 and the negative pressure state to enable the airtight cabin to keep a one-way exhaust effect, and the mode can realize the reset of the internal air pressure when the airtight cabin is placed for a long time.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A pressure detection device for a vehicle seat, comprising an underframe (1), characterized in that: the upper surface of the chassis (1) is fixedly connected with a base (2), the upper surface of the base (2) is provided with a soft layer (3), the inner wall of the base (2) is connected with a same pull rope (4) in a sliding mode through a plurality of arranged sliding holes, the surface of the pull rope (4) is connected with a plurality of pulleys (25) in a sliding mode, one end of each pulley (25) is movably connected to the inner wall of the base (2) through a pin shaft, one end of each pull rope (4) is fixedly connected to the inner wall of the base (2), the right side surface of the base (2) is fixedly connected with an airtight bin (5), and the right side surface of the airtight bin (5) is fixedly connected with a one-way air bin (6);

the upper surface of the one-way gas bin (6) is provided with a negative pressure bin (7), the upper surface of the negative pressure bin (7) is provided with a ceramic column (8), the inner wall of the airtight bin (5) is connected with a first piston (9) in a sliding manner, the left side surface of the first piston (9) is fixedly connected with the right end of a first spring (11), the left end of the first spring (11) is fixedly connected with the right side surface of a clamping ring (15), the surface of the clamping ring (15) is clamped at the left end of the airtight bin (5), the inner wall of the one-way gas bin (6) is connected with a ball valve (18) in a sliding manner, the right side surface of the ball valve (18) is fixedly connected with the left end of a second spring (12), the right end of the second spring (12) is fixedly connected with a fixing ring (19), and the surface of the fixing ring (19) is clamped at the inner wall of the one-way gas bin (6);

the inner wall sliding connection of negative pressure storehouse (7) has second piston (10), the left end of second piston (10) and the right-hand member fixed connection of third spring (13), the left end of third spring (13) and the left surface fixed connection of negative pressure storehouse (7) inner wall, the right flank of second piston (10) and the bottom fixed connection of gangbar (20), the surface winding of ceramic post (8) has coil (23), the upper surface of ceramic post (8) is provided with metal pole (22), the surperficial sliding connection of metal pole (22) has gleitbretter (24).

2. A pressure detecting device for a vehicle seat according to claim 1, characterized in that: the inner wall of the airtight bin (5) is fixedly connected with the surface of the positioning ring (14), and the first spring (11) is connected in the positioning ring (14) in a sliding mode.

3. A pressure detecting device for a vehicle seat according to claim 1, characterized in that: the left surface of ball valve (18) closely laminates seal ring (17), the surface joint of seal ring (17) is at the inner wall in one-way gas storehouse (6), seal ring (17) are the rubber circle.

4. A pressure detecting device for a vehicle seat according to claim 1, characterized in that: the top of gangbar (20) and the right flank fixed connection of gleitbretter (24), gangbar (20) are the U-shaped setting, gleitbretter (24) and the surperficial overlap joint of coil (23).

5. A pressure detecting device for a vehicle seat according to claim 1, characterized in that: the left side face of first piston (9) fixedly connected with connecting rod (16), connecting rod (16) are located first spring (11), position circle (14) and snap ring (15), the left end of connecting rod (16) and the other end fixed connection of stay cord (4).

6. A pressure detecting device for a vehicle seat according to claim 1, characterized in that: the inner wall fixedly connected with toughness steel sheet (26) of base (2), toughness steel sheet (26) are the slope form and fix the inner wall at base (2), toughness steel sheet (26) are the bending of 1500R radian.

7. A pressure detecting device for a vehicle seat according to claim 1, characterized in that: the left side face of the inner wall of the negative pressure bin (7) is connected with a communicating pipe (21) in a clamping mode, and the left end of the communicating pipe (21) is communicated with the right side face of the inner wall of the airtight bin (5).