CN221954300U - A high-strength, small-gap zero-gravity chair - Google Patents

Abstract

The utility model provides a high-strength small-gap zero-gravity seat, which is characterized in that a first hinge point and a fourth hinge point are respectively arranged in different sliding modules, so that the distance between the first hinge point and the fourth hinge point can be adjusted, when the sitting basin angle of a sliding rail is only adjusted, only the first sliding module or the second sliding module is required to be driven to realize the large angle of the sitting basin assembly, the maximum adjusting angle of a single sitting basin can reach 21 degrees, and if the front and back adjustment of the whole seat is required to be realized, the first sliding module and the second sliding module are required to be driven simultaneously; the first sliding module and the second sliding module are arranged, and the sliding pair is adopted to replace the corresponding rotating pair, so that the contact surface/contact point is enlarged, the generation of gaps is effectively restrained, and the integral strength, particularly the lateral rigidity, is improved; the seat structure does not need to change the existing original connecting rod design, has stronger expansion and universality, and is correspondingly beneficial to improving the forward movement speed because forward driving is executed by the two driving units.

Description

A high-strength, small-gap zero-gravity chair

Technical Field

The utility model belongs to the technical field of automobile seats, and in particular relates to a high-strength, small-gap zero-gravity seat.

Background Art

With the development of the times, cars have gradually become an indispensable means of transportation in people's lives. At the same time, people have begun to pursue more comfort and high configuration of vehicles. Today's new energy cars, SUVs, MPVs and other vehicles have also pursued higher comfort of seats, and more distinctive scenes and ideas are constantly being introduced. With the help of intelligent driving and autonomous driving, "zero-gravity seats" have become a new trend in current vehicles.

However, the main method of achieving zero gravity at present, reference application number 202110643449.X, named "A Chinese invention patent for an automatically adjustable zero-gravity seat structure and automobile", uses a five-link as the main form in the structure of the reference application. Although such a structure can achieve large-angle functions, in actual applications, it cannot solve the feeling of riding gap, and the comfort needs to be improved; on the other hand, the overall structural strength of the mechanism in a collision is also discounted due to the additional connecting rods, and a breakthrough has been made for a long time; therefore, the utility model proposes a high-strength, small-gap zero-gravity seat to solve the above problems.

Utility Model Content

The utility model provides a high-strength and small-gap zero-gravity seat, which is mainly intended to solve the gap and strength problems of the zero-gravity seat and to solve the problems raised by the background technology.

The utility model is implemented as follows: a high-strength, small-gap zero-gravity chair comprises a backrest and a seat cushion, wherein the seat cushion is composed of a slide rail assembly, a slide rail drive assembly, a front slide rail upper bracket, a rear slide rail upper bracket, a front connecting rod, a rear connecting rod and a seat basin;

The slide rail assembly comprises a first slide module and a second slide module, wherein the first slide module and the second slide module share a lower slide rail, wherein the first slide module comprises a first slide module ball, a first slide module upper rail and a lower slide rail, and the second slide module comprises a second slide module ball, a second slide module upper rail and a lower slide rail;

The slide rail driving assembly comprises a first slide rail motor and a second slide rail motor, the first slide rail motor is used to drive the first sliding module, and the second slide rail motor is used to drive the second sliding module;

The bottom end of the upper bracket of the front slide rail is fixedly connected to the upper rail of the first sliding assembly, the top end of the upper bracket of the front slide rail is hinged to the front connecting rod, the bottom end of the upper bracket of the rear slide rail is fixedly connected to the upper rail of the second sliding assembly, and the top end of the upper bracket of the rear slide rail is hinged to the rear connecting rod;

The hinge point between the upper bracket of the front slide rail and the front connecting rod is the first hinge point, the hinge point between the front connecting rod and the seat basin is the second hinge point, the hinge point between the seat basin and the rear connecting rod is the third hinge point, and the hinge point between the rear connecting rod and the upper bracket of the rear slide rail is the fourth hinge point. A lifting torsion bar is provided at the third hinge point, and the lifting torsion bar is used to reduce the adjustment load.

Preferably, two of the slide rail assemblies are provided, the two slide rail assemblies are spaced apart from each other, and both of the two slide rail assemblies are located below the basin.

Preferably, the first slide rail motor and the second slide rail motor are both arranged between the two slide rail assemblies, and the first slide rail motor and the second slide rail motor are relatively distributed.

Preferably, the first slide rail motor is connected to the two upper rails of the first sliding assembly via a fixed plate, the second slide rail motor is connected to the two upper rails of the second sliding assembly via a fixed plate, and the output ends of the first slide rail motor and the second slide rail motor are both connected to a screw rod.

Preferably, the ball bearing of the first sliding component is embedded between the upper rail and the lower rail of the first sliding component, and the ball bearing of the second sliding component is embedded between the upper rail and the lower rail of the second sliding component.

Preferably, when the seat cushion is driven forward, the first sliding module and the second sliding module are driven respectively by the slide rail driving assembly to increase the speed of forward movement.

Compared with the prior art, the beneficial effects of the utility model are:

1. Compared with the traditional design, the zero-gravity seat structure of the present invention has a first hinge point and a fourth hinge point arranged on the same sliding module, and the distance between the first hinge point and the fourth hinge point cannot be changed. Therefore, an additional connecting rod must be added to form a five-link structure in order to perform a corresponding large-angle adjustment. The present invention places the first hinge point and the fourth hinge point in different sliding modules, respectively, so that the distance between the two can be adjusted. When only adjusting the angle of the sliding rail seat basin, only the first or second sliding module needs to be driven to achieve a large angle of the seat basin assembly. The maximum adjustment angle of a single seat basin can reach 21°. If the entire seat needs to be adjusted forward and backward, the first and second sliding modules can be driven at the same time.

2. The zero-gravity seat structure of the utility model is provided with a first sliding module and a second sliding module, and a sliding pair is used to replace the corresponding rotating pair, thereby expanding the contact surface/contact point, effectively curbing the generation of gaps, and also facilitating the enhancement of the overall strength, especially the enhancement of lateral rigidity;

3. The zero-gravity seat structure of the utility model does not need to change the existing original connecting rod design, and has stronger expandability and versatility. Moreover, since the forward drive is now performed by two drive units, it is correspondingly beneficial to increase the speed of forward movement.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is an exploded perspective view of the overall structure of the utility model;

Figure 2 is a perspective view of the overall structure of the utility model;

FIG3 is a front view of the overall structure of the utility model;

FIG4 is a perspective view of the overall structure of the utility model in a zero-gravity posture;

FIG5 is a front view of the overall structure of the utility model in a zero-gravity posture;

FIG6 is a perspective view of the structure of the slide rail assembly of the utility model;

FIG7 is a schematic diagram of the connecting rod and hinge points of the seat of the present invention in a normal posture;

FIG8 is a schematic diagram of the state of the connecting rod and each hinge point of the seat of the present invention in a zero-gravity posture.

In the figure:

1. Backrest;

2. Cushion; 21. Slide rail assembly; 22. First slide rail motor; 23. Second slide rail motor; 24. Front slide rail upper bracket; 25. Rear slide rail upper bracket; 26. Lifting torsion bar; 27. Front connecting rod; 28. Rear connecting rod; 29. Seat basin; 211. Lower slide rail; 212. First slide assembly ball bearing; 213. First slide assembly upper rail; 214. Second slide assembly ball bearing; 215. Second slide assembly upper rail;

3. First hinge point; 4. Second hinge point; 5. Third hinge point; 6. Fourth hinge point.

DETAILED DESCRIPTION

The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

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

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Please refer to Figures 1 to 8. The utility model provides a technical solution: a high-strength, small-gap zero-gravity chair, comprising a backrest 1 and a cushion 2, wherein the cushion 2 is composed of a slide rail assembly 21, a slide rail drive assembly, a front slide rail upper bracket 24, a rear slide rail upper bracket 25, a front connecting rod 27, a rear connecting rod 28 and a seat basin 29; the slide rail assembly 21 comprises a first sliding module and a second sliding module, the first sliding module and the second sliding module share a lower slide rail 211, wherein the first sliding module is composed of a first sliding module ball 212, a first sliding module upper rail 213 and a lower slide rail 211, and the second sliding module is composed of a second sliding module ball 214, a second sliding module upper rail 215 and a lower slide rail 211; the slide rail drive assembly comprises a first slide rail motor 22 and a second slide rail motor 23, The first slide rail motor 22 is used to drive the first sliding module, and the second slide rail motor 23 is used to drive the second sliding module; the bottom end of the front slide rail upper bracket 24 is fixedly connected to the first sliding component upper rail 213, the top end of the front slide rail upper bracket 24 is hinged to the front connecting rod 27, the bottom end of the rear slide rail upper bracket 25 is fixedly connected to the second sliding component upper rail 215, and the top end of the rear slide rail upper bracket 25 is hinged to the rear connecting rod 28; the hinge point between the front slide rail upper bracket 24 and the front connecting rod 27 is the first hinge point 3, the hinge point between the front connecting rod 27 and the seat basin 29 is the second hinge point 4, the hinge point between the seat basin 29 and the rear connecting rod 28 is the third hinge point 5, and the hinge point between the rear connecting rod 28 and the rear slide rail upper bracket 25 is the fourth hinge point 6. A lifting torsion bar 26 is provided at the third hinge point 5, and the lifting torsion bar 26 is used to reduce the adjustment load.

In this embodiment, compared with the traditional design, the zero-gravity seat structure is that in the traditional design, the first hinge point 3 and the fourth hinge point 6 are arranged on the same sliding module, and the distance between the first hinge point 3 and the fourth hinge point 6 cannot be changed. Therefore, an additional connecting rod must be added to form a five-linkage to perform the corresponding large angle adjustment; while the zero-gravity seat structure places the first hinge point 3 and the fourth hinge point 6 in different sliding modules, respectively, as shown in Figures 7 and 8, so that the distance between the two can be adjusted. When only adjusting the angle of the sliding rail seat basin 29, only the first or second sliding module needs to be driven to achieve a large angle of the seat basin 29. The maximum adjustment angle of the single seat basin 29 can reach 21°. If the entire seat needs to be adjusted forward and backward, the first and second sliding modules can be driven at the same time; a lifting torsion bar 26 is provided at the third hinge point 5, and the lifting torsion bar 26 is used to reduce the adjustment load and further reduce the volume of the motor;

Specifically: the zero-gravity seat structure is composed of a backrest 1 and a seat cushion 2, wherein the seat cushion 2 is the core area of the design, and the seat cushion 2 is composed of a slide rail assembly 21, a slide rail drive assembly, a front slide rail upper bracket 24, a rear slide rail upper bracket 25, a front connecting rod 27, a rear connecting rod 28 and a seat basin 29, wherein two slide rail assemblies 21 are provided, and the two are symmetrically arranged with left and right intervals, and one slide rail assembly 21 includes two sliding modules, and the two share a lower rail 211, wherein the first sliding assembly ball 212, the first sliding assembly upper rail 213 and the lower rail 211 constitute a first sliding module, and the second sliding assembly ball 214, the second sliding assembly upper rail 215 and the lower rail 211 constitute a second sliding module, and the two sliding modules are driven by the first slide rail motor 22 and the second slide rail motor 23 respectively. When it is necessary to adjust the angle of the slide rail seat basin 29 When the first slide rail motor 22 or the second slide rail motor 23 is driven, the first slide rail motor 22 or the second slide rail motor 23 rotates to drive the screw to rotate, and the torque output by the motor will be transmitted to the first sliding assembly upper rail 213 and the second sliding assembly upper rail 215 through the screw, and the first sliding assembly upper rail 213 and the second sliding assembly upper rail 215 are translated on the lower rail 211 under the action of the first sliding assembly ball 212 and the second sliding assembly ball 214, so that the first sliding assembly upper rail 213 and the second sliding assembly upper rail 215 move with the rotation of the motor, and the rear seat basin 29 can be lifted under the action of the front connecting rod 27 and the rear connecting rod 28 (please refer to Figures 4 and 5). At this time, the seat is in a zero-gravity posture, and the maximum adjustment angle of the single seat basin 29 can reach 21°;

A first sliding module and a second sliding module are provided, and a sliding pair is used to replace the corresponding rotating pair, thereby expanding the contact surface/contact point, effectively curbing the generation of gaps, and also being conducive to enhancing the overall strength, especially the lateral rigidity;

Specifically: when adjusting the angle of the sliding rail seat basin 29, only the first or second sliding module needs to be driven to achieve a large angle adjustment of the seat basin 29. The maximum adjustment angle of a single seat basin 29 can reach 21°. If the entire seat needs to be adjusted forward and backward, the first and second sliding modules can be driven at the same time; the contact area of the force point during sliding is the contact area between the entire sliding module and the lower sliding rail 211, and the contact area of the force point during rotation is only the contact area between the screw nut and the screw. The contact area of the former is much larger than the contact area of the latter force point, which effectively curbs the generation of gaps and is also beneficial to enhancing the overall strength.

Further, referring to FIGS. 2 to 5 , two slide rail assemblies 21 are provided, and the two slide rail assemblies 21 are spaced apart from each other, and both slide rail assemblies 21 are located below the basin 29 .

In this embodiment, two slide rail assemblies 21 are provided, and the two are symmetrically arranged with a left-right interval. One slide rail assembly 21 includes two sliding modules, and the two share a lower lower rail 211, wherein the first sliding assembly ball 212, the first sliding assembly upper rail 213 and the lower lower rail 211 constitute the first sliding module, and the second sliding assembly ball 214, the second sliding assembly upper rail 215 and the lower lower rail 211 constitute the second sliding module, and the two sliding modules are driven by the first slide rail motor 22 and the second slide rail motor 23 respectively. When adjusting the angle of the slide rail seat basin 29, only the first or second sliding module needs to be driven to achieve a large angle of the seat basin 29. The maximum adjustment angle of the single seat basin 29 can reach 21°. If the forward and backward adjustment of the entire seat needs to be realized, the first and second sliding modules can be driven at the same time.

Further, referring to FIG. 1 and FIG. 2 , the first slide rail motor 22 and the second slide rail motor 23 are both disposed between the two slide rail assemblies 21 , and the first slide rail motor 22 and the second slide rail motor 23 are relatively distributed.

Further, please refer to the figure, the first slide rail motor 22 is connected to the two first sliding component upper rails 213 through a fixed plate, the second slide rail motor 23 is connected to the two second sliding component upper rails 215 through a fixed plate, and the output ends of the first slide rail motor 22 and the second slide rail motor 23 are both connected to the screw.

In this embodiment, the first slide rail motor 22 and the second slide rail motor 23 are both arranged between the two slide rail assemblies 21, so that starting one motor can simultaneously drive two symmetrically distributed first sliding modules or second sliding modules to move on the lower slide rail 211 at the same time.

Further, referring to FIG. 6 , the first sliding assembly ball 212 is embedded between the first sliding assembly upper rail 213 and the lower sliding rail 211 , and the second sliding assembly ball 214 is embedded between the second sliding assembly upper rail 215 and the lower sliding rail 211 .

In this embodiment, when it is necessary to adjust the angle of the sliding rail seat basin 29, it is only necessary to drive the first sliding rail motor 22 or the second sliding rail motor 23, and then the first sliding rail motor 22 or the second sliding rail motor 23 rotates to drive the screw to rotate, and the torque output by the motor will be transmitted to the first sliding component upper rail 213 and the second sliding component upper rail 215 through the screw, and the first sliding component upper rail 213 and the second sliding component upper rail 215 are translated on the lower rail 211 under the action of the first sliding component ball 212 and the second sliding component ball 214, so that the first sliding component upper rail 213 and the second sliding component upper rail 215 move with the rotation of the motor, and the rear seat basin 29 can realize the angle change of the seat basin 29 under the action of the front connecting rod 27 and the rear connecting rod 28.

Furthermore, when the seat cushion 2 is driven forward, the first sliding module and the second sliding module are driven respectively by the slide rail driving assembly to increase the speed of forward movement.

In this embodiment, when the seat cushion 2 is driven forward, the first sliding module and the second sliding module are respectively driven by the slide rail driving assembly to increase the speed of forward movement; similarly, when the seat cushion 2 is driven backward, the first sliding module and the second sliding module are respectively driven in reverse by the slide rail driving assembly to increase the speed of backward movement. The two motors can increase the speed of forward and backward movement of the seat.

The working principle and use process of the utility model: the zero-gravity chair structure is composed of a backrest 1 and a seat cushion 2, wherein the seat cushion 2 is the core area of the design, and the seat cushion 2 is composed of a slide rail assembly 21, a slide rail drive assembly, a front slide rail upper bracket 24, a rear slide rail upper bracket 25, a front connecting rod 27, a rear connecting rod 28 and a seat basin 29, wherein two slide rail assemblies 21 are provided, and the two are symmetrically arranged with left and right intervals, and one slide rail assembly 21 includes two sliding modules, and the two share a lower rail 211, wherein the first sliding assembly ball 212, the first sliding assembly upper rail 213 and the lower rail 211 constitute a first sliding module, and the second sliding assembly ball 214, the second sliding assembly upper rail 215 and the lower rail 211 constitute a second sliding module, and the two sliding modules are driven by the first slide rail motor 22 and the second slide rail motor 23 respectively. When the slide rail needs to be adjusted When the seat basin 29 is at an angle, it is only necessary to drive the first slide rail motor 22 or the second slide rail motor 23, and then the first slide rail motor 22 or the second slide rail motor 23 rotates to drive the screw to rotate, and the torque output by the motor will be transmitted to the first sliding component upper rail 213 and the second sliding component upper rail 215 through the screw, and the first sliding component upper rail 213 and the second sliding component upper rail 215 are translated on the lower rail 211 under the action of the first sliding component ball 212 and the second sliding component ball 214, so that the first sliding component upper rail 213 and the second sliding component upper rail 215 move with the rotation of the motor, and the seat basin 29 can be lifted under the action of the front connecting rod 27 and the rear connecting rod 28 (please refer to Figures 4 and 5). At this time, the seat is in a zero-gravity posture, and the maximum adjustment angle of the single seat basin 29 can reach 21°.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A high-strength, small-gap zero-gravity chair, comprising a backrest (1) and a seat cushion (2), characterized in that the seat cushion (2) is composed of a slide rail assembly (21), a slide rail drive assembly, a front slide rail upper bracket (24), a rear slide rail upper bracket (25), a front connecting rod (27), a rear connecting rod (28) and a seat pan (29); The slide rail assembly (21) comprises a first slide module and a second slide module, wherein the first slide module and the second slide module share a lower slide rail (211), wherein the first slide module comprises a first slide module ball (212), a first slide module upper rail (213) and a lower slide rail (211), and the second slide module comprises a second slide module ball (214), a second slide module upper rail (215) and a lower slide rail (211); The slide rail drive assembly comprises a first slide rail motor (22) and a second slide rail motor (23), wherein the first slide rail motor (22) is used to drive the first sliding module, and the second slide rail motor (23) is used to drive the second sliding module; The bottom end of the front slide rail upper bracket (24) is fixedly connected to the first slide assembly upper rail (213), the top end of the front slide rail upper bracket (24) is hinged to the front connecting rod (27), the bottom end of the rear slide rail upper bracket (25) is fixedly connected to the second slide assembly upper rail (215), and the top end of the rear slide rail upper bracket (25) is hinged to the rear connecting rod (28); The hinge point between the front slide rail upper bracket (24) and the front connecting rod (27) is the first hinge point (3), the hinge point between the front connecting rod (27) and the seat pan (29) is the second hinge point (4), the hinge point between the seat pan (29) and the rear connecting rod (28) is the third hinge point (5), and the hinge point between the rear connecting rod (28) and the rear slide rail upper bracket (25) is the fourth hinge point (6). A lifting torsion bar (26) is provided at the third hinge point (5), and the lifting torsion bar (26) is used to reduce the adjustment load. 2. A high-strength, small-gap zero-gravity chair according to claim 1, characterized in that: there are two slide rail assemblies (21), the two slide rail assemblies (21) are relatively spaced apart, and the two slide rail assemblies (21) are both located below the seat basin (29). 3. A high-strength, small-gap zero-gravity chair according to claim 2, characterized in that: the first slide rail motor (22) and the second slide rail motor (23) are both arranged between the two slide rail assemblies (21), and the first slide rail motor (22) and the second slide rail motor (23) are relatively distributed. 4. A high-strength, small-gap zero-gravity chair according to claim 3, characterized in that: the first slide rail motor (22) is connected to the two upper rails (213) of the first sliding component through a fixed plate, the second slide rail motor (23) is connected to the two upper rails (215) of the second sliding component through a fixed plate, and the output ends of the first slide rail motor (22) and the second slide rail motor (23) are both connected to a screw rod. 5. A high-strength, small-gap zero-gravity chair according to claim 1, characterized in that: the first sliding component ball (212) is embedded between the first sliding component upper rail (213) and the lower sliding rail (211), and the second sliding component ball (214) is embedded between the second sliding component upper rail (215) and the lower sliding rail (211). 6. A high-strength, small-gap zero-gravity chair according to claim 1, characterized in that when the seat cushion (2) is driven forward, the slide rail driving assembly drives the first sliding module and the second sliding module respectively to increase the forward movement speed.