Seat and vehicle

Abstract

The seat comprises a first connecting rod assembly, a second connecting rod assembly, a driving device, a seat cushion framework, a leg support and a connecting rod base, the seat cushion framework is installed on the first connecting rod assembly, the leg support is installed on the second connecting rod assembly, and the first connecting rod assembly and the second connecting rod assembly are installed on the connecting rod base. The first connecting rod assembly is in transmission connection with the second connecting rod assembly, and the driving device is used for driving the first connecting rod assembly to lower the seat cushion framework and drive the second connecting rod assembly to unfold the leg support, or driving the first connecting rod assembly to raise the seat cushion framework and drive the second connecting rod assembly to retract the leg support. Compared with the scheme that the seat cushion framework and the leg support are independently driven through two driving devices in the prior art, the seat can drive the first connecting rod assembly and the second connecting rod assembly at the same time through the driving devices, linkage of the seat cushion framework and the leg support is achieved, the arrangement number of motors is reduced, and then the cost of the seat and the cost of a vehicle are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a seat and a vehicle. Background Art

[0002] The market demand for more comfortable car seats is increasing, and many car companies have launched zero-gravity seats to meet user needs. However, many zero-gravity seats in the prior art usually use two drive devices to independently control the leg support part and the seat cushion part. Such a multi-drive device solution will increase the overall cost of the seat. Utility Model Content

[0003] In view of this, the utility model aims to provide a seat and a vehicle to solve the technical problem of high overall cost of seats in the prior art.

[0004] The utility model provides a seat, including a first connecting rod assembly, a second connecting rod assembly, a driving device, a seat cushion frame, a leg rest and a connecting rod base, the seat cushion frame is installed on the first connecting rod assembly, the leg rest is installed on the second connecting rod assembly, the first connecting rod assembly and the second connecting rod assembly are installed on the connecting rod base, the first connecting rod assembly and the second connecting rod assembly are transmission connected, the driving device is used to drive the first connecting rod assembly to lower the seat cushion frame and drive the second connecting rod assembly to unfold the leg rest, or drive the first connecting rod assembly to raise the seat cushion frame and drive the second connecting rod assembly to retract the leg rest.

[0005] Further, the first connecting rod assembly includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is rotatably connected to the rear end of the seat cushion frame, the first end of the second connecting rod is rotatably connected to the front end of the seat cushion frame, the second end of the first connecting rod is rotatably connected to the rear end of the connecting rod base, and the second end of the second connecting rod is rotatably connected to the front end of the connecting rod base.

[0006] Further, the second link assembly includes a third link, a fourth link, a fifth link, a sixth link and a seventh link, the first end of the third link is rotatably connected to the front end of the seat cushion frame, the second end of the third link is rotatably connected to the first end of the fourth link, the second end of the fourth link is rotatably connected to the link base and is located between the second end of the first link and the second end of the second link, the first end of the fifth link is rotatably connected to the first end of the third link, the second end of the fifth link is rotatably connected to the first end of the seventh link, the first end of the sixth link is rotatably connected to a portion of the fourth link except the second end, the sixth link is cross-arranged with the fifth link and rotatably connected to each other, the second end of the sixth link and the second end of the seventh link are rotatably connected to the first end and the second end of the leg rest respectively.

[0007] Furthermore, the driving device includes a driving member, a gear plate and a rear cross bar, the two ends of the rear cross bar are respectively fixedly connected to the first connecting rods on both sides, the gear plate is fixedly connected to the rear cross bar, and the driving member is transmission-connected to the gear plate.

[0008] Furthermore, an arc-shaped limiting groove is formed on the gear plate, and a limiting column is formed on the seat cushion frame. The limiting column is at least partially located in the arc-shaped limiting groove so as to abut against one of the inner walls on both sides of the arc-shaped limiting groove for limiting.

[0009] Furthermore, it also includes a reinforcing bracket, which has a first mounting portion and a second mounting portion, the first mounting portion is connected to the limiting column, and the second mounting portion is connected to the seat cushion frame.

[0010] Furthermore, the first connecting rods on both sides are rotatably connected to the seat cushion frames on both sides through two ends of the rear cross bar.

[0011] Furthermore, the connecting rod base includes a first bracket, a second bracket, a third bracket, and a base body. The first bracket, the second bracket, and the third bracket are installed on the base body and are rotatably connected to the second end of the first connecting rod, the second end of the second connecting rod, and the second end of the fourth connecting rod, respectively.

[0012] Furthermore, it also includes a slide rail, and the connecting rod base is slidably connected to the slide rail.

[0013] The utility model also provides a vehicle, comprising the seat.

[0014] The seat in the utility model can drive the first link assembly to move through a driving device, so that the seat cushion frame installed on the first link assembly can be raised or lowered, and the transmission connection between the first link assembly and the second link assembly can drive the second link assembly to move together, so that the leg rest installed on the second link assembly can be retracted when the seat cushion frame is raised, which corresponds to the seat posture during normal driving of the vehicle, and can ensure the safety of the occupant, or the leg rest is unfolded when the seat cushion frame is lowered, which corresponds to the user turning on the zero gravity function of the seat (or rest, lying down, etc.), so that the leg rest supports the user's legs, and the seat cushion frame is lowered to meet the user's zero gravity comfort experience, thereby ensuring the user's comfort experience when using the vehicle. Compared with the solution of independently driving the seat cushion frame and the leg rest by two driving devices in the traditional technology, the seat solution of the utility model can drive the first link assembly through the driving device and drive the second link assembly at the same time, so as to realize the linkage between the seat cushion frame and the leg rest, reduce the number of motors arranged, and thus reduce the cost of the seat and the vehicle.

[0015] The vehicle of the present invention has all the beneficial effects of the above-mentioned seats, which will not be described in detail here.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method. The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 This is one of the structural schematic diagrams of the seat provided by the utility model;

[0019] Figure 2 This is one of the schematic diagrams of the mechanism of the seat provided by the utility model (the seat cushion frame is raised and the leg support is retracted);

[0020] Figure 3This is the second schematic diagram of the mechanism of the seat provided by the utility model (the seat cushion frame is lowered and the leg rest is unfolded);

[0021] Figure 4 It is an enlarged schematic diagram of the location of the reinforcing bracket in the seat provided by the utility model;

[0022] Figure 5 This is the second structural schematic diagram of the seat provided by the utility model (only part of the structure is shown).

[0023] The above drawings include the following reference numerals:

[0024] 1. First connecting rod assembly; 11. First connecting rod; 12. Second connecting rod; 2. Second connecting rod assembly; 21. Third connecting rod; 22. Fourth connecting rod; 23. Fifth connecting rod; 24. Sixth connecting rod; 25. Seventh connecting rod; 3. Driving device; 31. Driving member; 32. Gear plate; 321. Arc-shaped limiting groove; 33. Rear cross bar; 4. Cushion frame; 41. Limiting column; 5. Leg support; 6. Connecting rod base; 61. First bracket; 62. Second bracket; 63. Third bracket; 64. Base body; 7. Reinforcement bracket; 71. First mounting portion; 72. Second mounting portion; 8. Slide rail. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but are not intended to limit the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] This specification may use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment" or "in other embodiments", all of which may refer to one or more of the same or different embodiments according to the present invention.

[0028] The utility model provides a seat, combined with Figure 1As shown, it includes a first connecting rod assembly 1, a second connecting rod assembly 2, a driving device 3, a seat cushion frame 4, a leg rest 5 and a connecting rod base 6, the seat cushion frame 4 is installed on the first connecting rod assembly 1, the leg rest 5 is installed on the second connecting rod assembly 2, the first connecting rod assembly 1 and the second connecting rod assembly 2 are installed on the connecting rod base 6, the first connecting rod assembly 1 and the second connecting rod assembly 2 are connected by transmission, the driving device 3 is used to drive the first connecting rod assembly 1 to lower the seat cushion frame 4 and drive the second connecting rod assembly 2 to expand the leg rest 5, or drive the first connecting rod assembly 1 to raise the seat cushion frame 4 and drive the second connecting rod assembly 2 to retract the leg rest 5.

[0029] The first connecting rod assembly 1 installed with the seat cushion frame 4 and the second connecting rod assembly 2 installed with the leg rest 5 can be combined by selecting the corresponding connecting rod assemblies as needed. For example, the first connecting rod assembly 1 can form a common connecting rod assembly such as a crank slider assembly with the seat cushion frame 4, and the second connecting rod assembly 2 can form a corresponding connecting rod assembly with the leg rest 5. The first connecting rod assembly 1 and the second connecting rod assembly 2 are hinged at a certain position, or connected by another connecting rod structure, so that a transmission connection is formed between the two. After being installed on the connecting rod base 6, the first connecting rod assembly 1 can transmit power to the second connecting rod assembly 2 when it moves, so that the second connecting rod assembly 2 can also move together. Since the leg rest 5 is unfolded when the seat cushion frame 4 is lowered, and the leg rest 5 is retracted when the seat cushion frame 4 is raised, those skilled in the art can select the corresponding first connecting rod assembly 1 and the second connecting rod assembly 2 to match with the seat cushion frame 4 and the leg rest 5 according to this action. In this way, the first connecting rod assembly 1 is driven by the driving device 3, and then transmitted to the second connecting rod assembly 2, so that a linkage relationship is established between the seat cushion frame 4 and the leg rest 5. Combination Figure 2 As shown, when the seat cushion frame 4 is raised, the leg support 5 is driven to retract, that is, the position of the seat corresponding to the normal driving state, ensuring the safety of the passengers on the seat during the driving process of the vehicle; Figure 3 As shown, when the seat cushion frame 4 is lowered, the leg rest 5 is driven to unfold, which corresponds to the position of the seat in a zero-gravity state (or a resting or lying down state), so that the passenger on the seat is in a more comfortable lying position. Compared with the traditional solution in which two driving devices independently drive the seat cushion frame 4 and the leg rest 5, the seat of the utility model can realize the linkage between the seat cushion frame 4 and the leg rest 5 through one driving device 3, thereby reducing the cost of the seat and the vehicle and ensuring the user's comfort experience when using the vehicle.

[0030] It should be understood that after the above-mentioned first connecting rod assembly 1, second connecting rod assembly 2, seat cushion frame 4, leg rest 5 and connecting rod base 6 are assembled, a mechanism with 1 degree of freedom should be formed, so that the various components can be driven to produce a certain motion trajectory only by the driving device 3; in addition, the raising and lowering of the seat cushion frame 4 can be an up and down movement in the vertical direction (i.e., the Z-axis direction in the figure) or a combined movement with movements in other directions, the deployment of the leg rest 5 corresponds to the state where the leg rest 5 lifts the legs of the occupant upward, and the retraction of the leg rest 5 corresponds to the state where the height of the leg rest 5 is lower than the seat cushion frame 4 and is stored under the seat cushion frame 4. Therefore, the retraction and deployment of the leg rest 5 can be a swing on the ZX plane in the figure or other complex combined movements, and its specific movement mode is not limited here.

[0031] Specifically, combined Figures 1 to 3 As shown, the first connecting rod assembly 1 includes a first connecting rod 11 and a second connecting rod 12, the first end of the first connecting rod 11 is rotatably connected to the rear end of the seat cushion frame 4 (i.e., the end in the opposite direction of the X-axis), the first end of the second connecting rod 12 is rotatably connected to the front end of the seat cushion frame 4 (i.e., the end in the positive direction of the X-axis), the second end of the first connecting rod 11 is rotatably connected to the rear end of the connecting rod base 6 (i.e., the end in the opposite direction of the X-axis), and the second end of the second connecting rod 12 is rotatably connected to the front end of the connecting rod base 6 (i.e., the end in the positive direction of the X-axis).

[0032] In this way, the first connecting rod assembly 1, the seat cushion frame 4 and the connecting rod base 6 together form a set of four-bar linkage. Figure 2 and Figure 3 As shown, the driving device 3 can drive the first connecting rod assembly 1 to move the entire four-bar linkage, thereby driving the seat cushion frame 4 to rise or fall.

[0033] Specifically, combined Figures 2 to 3As shown, the second connecting rod assembly 2 includes a third connecting rod 21, a fourth connecting rod 22, a fifth connecting rod 23, a sixth connecting rod 24 and a seventh connecting rod 25, the first end of the third connecting rod 21 is rotationally connected to the front end of the seat cushion frame 4 (i.e., the end in the positive direction of the X-axis), the second end of the third connecting rod 21 is rotationally connected to the first end of the fourth connecting rod 22, the second end of the fourth connecting rod 22 is rotationally connected to the connecting rod base 6, and is located between the second end of the first connecting rod 11 and the second end of the second connecting rod 12, the first end of the fifth connecting rod 23 is rotationally connected to the first end of the third connecting rod 21, the second end of the fifth connecting rod 23 is rotationally connected to the first end of the seventh connecting rod 25, the first end of the sixth connecting rod 24 is rotationally connected to the part of the fourth connecting rod 22 except the second end, the sixth connecting rod 24 and the fifth connecting rod 23 are cross-arranged and rotationally connected to each other, the second end of the sixth connecting rod 24 and the second end of the seventh connecting rod 25 are rotationally connected to the first end and the second end of the leg support 5 respectively.

[0034] It should be noted that the first end of the sixth connecting rod 24 can be connected to any position on the fourth connecting rod 22 except the second end, so that the first end of the sixth connecting rod 24 has a tendency to move in the opposite direction of the X-axis as the fourth connecting rod 22 rotates, so that the first end of the leg support 5 also has a certain tendency to move in the opposite direction of the X-axis, so that Figure 2 and Figure 3 The leg rest 5 shown can move from being set toward the positive direction of the X-axis to being set toward the positive direction of the Z-axis, which is equivalent to the leg rest 5 being tilted upward to achieve an unfolding action, and in the reverse direction, the leg rest 5 is retracted.

[0035] Thus, the second connecting rod assembly 2, the leg support 5, the connecting rod base 6 and the second connecting rod 12 together form an eight-link mechanism. Figure 2 and Figure 3 As shown, when the driving device 3 drives the first connecting rod assembly 1 to move, the second connecting rod 12 drives the second connecting rod assembly 2 to move, thereby driving the leg rest 5 to be deployed or retracted.

[0036] Furthermore, the driving device 3 includes a driving member 31, a gear plate 32 and a rear cross bar 33, the two ends of the rear cross bar 33 are respectively fixedly connected to the first ends of the first connecting rods 11 on both sides, the gear plate 32 is fixedly connected to the rear cross bar 33, and the driving member 31 is transmission-connected to the gear plate 32.

[0037] Combination Figure 1 and Figure 4As shown, the driving member 31 is usually a motor and is equipped with a driving gear for use with a gear plate 32. The gear plate 32 is fixedly connected to the rear cross bar 33. The two ends of the rear cross bar 33 along the Y-axis direction are respectively fixedly connected to the first connecting rods 11 on both sides (it can be the first end of the first connecting rod 11, or it can be other positions other than the first end, as long as the two first connecting rods 11 can rotate together). The gear plate 32 is fixedly connected to the rear cross bar 33. The first connecting rod 11 can be rotatably connected to the seat cushion frame 4 by setting a rotating shaft at its first end. In this way, the driving member 31 meshes and transmits to the gear plate 32 through the driving gear, so that the rear cross bar 33 drives the first connecting rod 11 to swing, so that the first connecting rod 11 rotates relative to the seat cushion frame 4 and the connecting rod base 6, thereby driving the first connecting rod assembly 1 and the second connecting rod assembly 2, thereby realizing the raising and lowering of the seat cushion frame 4, and the unfolding and retraction of the leg support 5.

[0038] from Figure 1 It can be seen that the first connecting rods 11 on both sides are rotatably connected to the seat cushion frames 4 on both sides through the two ends of the rear cross bar 33. That is, the rear cross bar 33 is fixedly connected to the first connecting rods on both sides, and is rotatably connected to the seat cushion frames 4 on both sides, so that the first connecting rods 11 are rotatably connected to the seat cushion frames 4, which is beneficial to increase the overall structural strength of the seat.

[0039] Preferably, an arc-shaped limiting groove 321 is formed on the gear plate 32 , and a limiting column 41 is formed on the cushion frame 4 . The limiting column 41 is at least partially located in the arc-shaped limiting groove 321 to abut against one of the inner walls on both sides of the arc-shaped limiting groove 321 for limiting.

[0040] Combination Figure 1 and Figure 4 As shown, one end of the limit column 41 is installed on the seat cushion frame 4, and the other end passes through the arc-shaped limit groove 321, so that at least a part of the limit column 41 is located in the arc-shaped limit groove 321. When the gear plate 32 rotates, the limit column 41 swings in the arc-shaped limit groove 321. When the seat cushion frame 4 is lowered to a preset position (or the leg rest 5 is unfolded), and when the seat cushion frame 4 is raised to another preset position (or the leg rest 5 is retracted), one of the inner walls on both sides of the arc-shaped limit groove 321 can be abutted against the limit column 41 to limit the movement of the entire seat, thereby limiting the overall movement of the seat within the designed range of motion to ensure the user experience.

[0041] Optionally, a reinforcing bracket 7 is further included, wherein the reinforcing bracket 7 has a first mounting portion 71 and a second mounting portion 72 , wherein the first mounting portion 71 is connected to the limiting column 41 , and the second mounting portion 72 is connected to the seat cushion frame 4 .

[0042] Combination Figure 4As shown, the reinforcing bracket 7 is an overall plate structure, and is provided with a first mounting portion 71 and a second mounting portion 72, both of which are in the form of mounting holes in the present embodiment. Bolts may be provided on the limiting column 41 to pass through the first mounting portion 71 and be fixedly connected by nuts. Correspondingly, other bolts are provided on the seat cushion frame 4 to be fixedly connected to the second mounting portion 72 by nuts. The reinforcing bracket 7 can strengthen the structural strength of the limiting column 41 to ensure the realization of its limiting function.

[0043] Furthermore, the connecting rod base 6 includes a first bracket 61, a second bracket 62, a third bracket 63, and a base body 64. The first bracket 61, the second bracket 62 and the third bracket 63 are installed on the base body 64 and are rotatably connected to the second end of the first connecting rod 11, the second end of the second connecting rod 12 and the second end of the fourth connecting rod 22 respectively.

[0044] Combination Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As shown, the second end of the first link 11 is rotatably connected to the first bracket 61, the second end of the second link 12 is rotatably connected to the second bracket 62, and the second end of the fourth link 22 is rotatably connected to the third bracket 63. The first bracket 61, the second bracket 62 and the third bracket 63 can be welded to the base body 64 respectively. In this embodiment, the second bracket 62 is integrally connected to the third bracket 63, and the third bracket 63 is located behind the second bracket 62 (i.e., in the opposite direction of the X-axis in the figure), thereby increasing the connection stability between the first link 11, the second link 12 and the fourth link 22 and the link base 6, and enhancing the overall reliability of the seat.

[0045] Optionally, a slide rail 8 is further included, and the connecting rod base 6 is slidably connected to the slide rail 8.

[0046] Combination Figure 1 and Figure 5 As shown, the slide rail 8 is arranged along the X-axis direction in the figure, so that the seat can slide in the X-axis direction as a whole, which is convenient for the user to adjust the seat position to provide a more comfortable riding experience.

[0047] The seat in the utility model can drive the first link assembly 1 to move through the driving device 3, so that the seat cushion frame 4 installed on the first link assembly 1 can be raised or lowered, and through the transmission connection between the first link assembly 1 and the second link assembly 2, the second link assembly 2 is driven to move together, so that the leg rest 5 installed on the second link assembly 2 can be retracted when the seat cushion frame 4 is raised, that is, corresponding to the seat posture during normal driving of the vehicle, which can ensure the safety of the occupant, or the leg rest 5 is unfolded when the seat cushion frame 4 is lowered, that is, corresponding to the user turning on the zero gravity function of the seat (or rest, lying down, etc.), so that the leg rest 5 supports the user's legs, and the seat cushion frame 4 is lowered to meet the user's zero gravity comfort experience, thereby ensuring the user's comfort experience when using the vehicle. Compared with the solution of independently driving the seat cushion frame 4 and the leg rest 5 by two driving devices in the traditional technology, the seat solution of the utility model can drive the first link assembly 1 by the driving device 3 and drive the second link assembly 2 at the same time, so as to realize the linkage between the seat cushion frame 4 and the leg rest 5, reduce the number of motors arranged, and thus reduce the cost of the seat and the vehicle.

[0048] The utility model also provides a vehicle, comprising the seat.

[0049] The vehicle in the utility model is equipped with the above-mentioned seat in its cabin, and the first connecting rod assembly 1 is driven to move by the driving device 3, so that the seat cushion frame 4 installed on the first connecting rod assembly 1 can be raised or lowered, and the first connecting rod assembly 1 is connected to the second connecting rod assembly 2 through a transmission connection, so that the second connecting rod assembly 2 is driven to move together, so that the leg support 5 installed on the second connecting rod assembly 2 can be retracted when the seat cushion frame 4 is raised, that is, corresponding to the seat posture when the vehicle is driven normally, and the safety of the occupants can be ensured, or the leg support 5 can be unfolded when the seat cushion frame 4 is lowered, that is, When the user turns on the zero gravity function of the seat (or rest, lie down, etc.), the leg rest 5 supports the user's legs, and the seat cushion frame 4 is lowered to meet the user's zero gravity comfort experience, thereby ensuring the user's comfort experience when using the vehicle. Compared with the traditional technology of independently driving the seat cushion frame 4 and the leg rest 5 by two driving devices, the seat solution of the utility model can drive the first connecting rod assembly 1 and the second connecting rod assembly 2 by the driving device 3, thereby realizing the linkage between the seat cushion frame 4 and the leg rest 5, reducing the number of motors arranged, and thereby reducing the cost of the seat and the vehicle.

[0050] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0052] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.

[0053] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0054] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A seat, characterized in that: The invention comprises a first connecting rod assembly, a second connecting rod assembly, a driving device, a seat cushion frame, a leg rest and a connecting rod base, wherein the seat cushion frame is mounted on the first connecting rod assembly, the leg rest is mounted on the second connecting rod assembly, the first connecting rod assembly and the second connecting rod assembly are mounted on the connecting rod base, the first connecting rod assembly and the second connecting rod assembly are transmission-connected, the driving device is used for driving the first connecting rod assembly to lower the seat cushion frame and drive the second connecting rod assembly to unfold the leg rest, or driving the first connecting rod assembly to raise the seat cushion frame and drive the second connecting rod assembly to retract the leg rest.

2. The seat according to claim 1, characterized in that: The first connecting rod assembly includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is rotatably connected to the rear end of the seat cushion frame, the first end of the second connecting rod is rotatably connected to the front end of the seat cushion frame, the second end of the first connecting rod is rotatably connected to the rear end of the connecting rod base, and the second end of the second connecting rod is rotatably connected to the front end of the connecting rod base.

3. The seat according to claim 1, characterized in that: The second link assembly includes a third link, a fourth link, a fifth link, a sixth link and a seventh link, the first end of the third link being rotatably connected to the front end of the seat cushion frame, the second end of the third link being rotatably connected to the first end of the fourth link, the second end of the fourth link being rotatably connected to the link base and located between the second end of the first link and the second end of the second link, the first end of the fifth link being rotatably connected to the first end of the third link, the second end of the fifth link being rotatably connected to the first end of the seventh link, the first end of the sixth link being rotatably connected to a portion of the fourth link except the second end, the sixth link being cross-arranged with the fifth link and rotatably connected to each other, the second end of the sixth link and the second end of the seventh link being rotatably connected to the first end and the second end of the leg support respectively.

4. The seat according to claim 2, characterized in that: The driving device includes a driving member, a gear plate and a rear cross bar. The two ends of the rear cross bar are respectively fixedly connected to the first connecting rods on both sides. The gear plate is fixedly connected to the rear cross bar. The driving member is drivingly connected to the gear plate.

5. The seat according to claim 4, characterized in that: The gear plate is provided with an arc-shaped limiting groove, the seat cushion frame is provided with a limiting column, and the limiting column is at least partially located in the arc-shaped limiting groove so as to abut against one of the inner walls on both sides of the arc-shaped limiting groove for limiting.

6. The seat according to claim 5, characterized in that: It also includes a reinforcing bracket, which has a first mounting portion and a second mounting portion, the first mounting portion is connected to the limiting column, and the second mounting portion is connected to the seat cushion frame.

7. The seat according to claim 4, characterized in that: The first connecting rods on both sides are rotatably connected to the seat cushion frames on both sides through the two ends of the rear cross bar.

8. The seat according to claim 3, characterized in that: The connecting rod base includes a first bracket, a second bracket, a third bracket, and a base body. The first bracket, the second bracket, and the third bracket are installed on the base body and are rotatably connected to the second end of the first connecting rod, the second end of the second connecting rod, and the second end of the fourth connecting rod, respectively.

9. The seat according to claim 1, characterized in that: It also includes a slide rail, and the connecting rod base is slidably connected to the slide rail.

10. A vehicle, characterized in that: A seat comprising the seat described in any one of claims 1 to 9.

Images