Seat and vehicle

Abstract

The utility model relates to the technical field of vehicle parts, and provides a seat and a vehicle, the seat comprises a backrest framework, a cushion framework and a seat basin assembly, the first end of the seat basin assembly is rotatably connected to the first end of the cushion framework, and the backrest framework is rotatably connected to the second end of the cushion framework; the seat further comprises a lifting mechanism, the lifting mechanism comprises a first connecting piece and a second connecting piece, the second connecting piece is rotationally connected to the backrest framework, the middle position of the first connecting piece is rotationally connected with the second end of the cushion framework, and the two ends of the first connecting piece are rotationally connected with the second end of the seat basin assembly and the second connecting piece correspondingly. And the first connecting piece is used for pushing the second end of the seat basin assembly to rotate upwards. Therefore, the lifting mechanism can lift a ventilation pipeline or a heating pipeline arranged at the lower end of the seat basin assembly along with the seat basin assembly, so that the seat backrest and the seat cushion are in a level state when the seat backrest is put down backwards under the condition that other comfort functions of the seat are not influenced.

Description

Technical Field

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

[0002] With the widespread use of cars and the continuous improvement of people's living standards, people's demand for the use of vehicles is also increasing. Among them, some seats in high-end models have been equipped with a cushion lifting structure to achieve the level of the cushion and the backrest when the seat back is folded back, improving the comfort of rest.

[0003] However, the existing seat cushion lifting structure adopts a double-layer pry bar structure, which only lifts the supporting suspension spring of the seat cushion when lifting the seat cushion, while the seat basin of the seat cushion remains fixed. When a ventilation structure or a heating pad is required to be provided on the seat cushion to realize other functions such as ventilation or heating, since part of the ventilation pipeline or heating pipeline is fixed on the seat basin and the other part is fixed on the suspension spring, when the double-layer pry bar structure lifts the seat cushion, these pipelines will be pulled, thereby making it impossible or difficult to realize multi-functional carrying of the seat. Utility Model Content

[0004] The problem solved by the utility model is: how to achieve a state in which the seat back is level with the seat cushion when the seat back is folded backwards without affecting other comfort functions of the seat.

[0005] In order to solve the above problems, the utility model provides a seat, comprising a backrest frame, a seat cushion frame and a seat pot assembly, wherein the first end of the seat pot assembly is rotatably connected to the first end of the seat cushion frame, and the backrest frame is rotatably connected to the second end of the seat cushion frame;

[0006] The lifting mechanism also includes a first connecting member and a second connecting member, the second connecting member is rotatably connected to the backrest frame, the middle position of the first connecting member is rotatably connected to the second end of the cushion frame, the two ends of the first connecting member are rotatably connected to the second end of the seat basin assembly and the second connecting member, respectively, and the first connecting member is used to push the second end of the seat basin assembly to rotate upward;

[0007] The first end and the second end of the seat basin assembly are respectively the two ends of the seat basin assembly along the front-rear direction of the vehicle, and the first end and the second end of the seat cushion frame are respectively the two ends of the seat cushion frame along the front-rear direction of the vehicle.

[0008] Optionally, the second connecting member is rotatably connected to a side of the backrest frame facing away from the seat basin assembly.

[0009] Optionally, the seat basin assembly includes a seat basin and a seat frame, the seat basin is connected to the seat frame, the seat frame is rotatably connected to the cushion frame at one end away from the backrest frame, a first fixing member is provided at one end of the seat frame close to the backrest frame, a second fixing member is provided on the backrest frame, the first connecting member is rotatably connected to the first fixing member, and the second connecting member is rotatably connected to the second fixing member.

[0010] Optionally, the lifting mechanisms are respectively provided on both sides of the seat basin assembly along the left-right direction of the vehicle, the second fixing member is arranged corresponding to the lifting mechanism, and the second fixing member is arranged at the lower end of the backrest frame.

[0011] Optionally, the lifting mechanism further includes a third connecting member, the first connecting member is rotatably connected to the first fixing member via the third connecting member, and the first fixing member is provided with a first sliding groove, and the third connecting member is used to slide in the first sliding groove.

[0012] Optionally, the seat bowl assembly further includes a bushing, wherein the bushing is disposed in the first slide groove, and the third connecting member is used to slide in the bushing.

[0013] Optionally, the lifting mechanism further includes a fourth connecting member, the first connecting member is rotatably connected to the second connecting member via the fourth connecting member, and the second connecting member is provided with a second sliding groove, and the fourth connecting member is used to slide in the second sliding groove.

[0014] Optionally, the first connecting member includes a plate body and a bearing, the two ends of the plate body are rotatably connected to the second end of the seat basin assembly and the second connecting member respectively, and the bearing is connected to the middle position of the plate body and rotatably connected to the cushion frame.

[0015] Optionally, a support plate is provided at the first end of the seat cushion frame, a connecting portion is provided at one end of the seat frame away from the backrest frame, and the support plate is rotatably connected to the connecting portion.

[0016] In order to solve the above problems, the utility model also provides a vehicle, comprising the seat as described above.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The seat of the utility model can be provided with a lifting mechanism, and the second connecting piece of the lifting mechanism is rotatably connected to the backrest frame, the middle position of the first connecting piece is rotatably connected to, for example, the rear end of the seat cushion frame, and the two ends of the first connecting piece are respectively rotatably connected to, for example, the rear end of the seat pot assembly and the second connecting piece. At the same time, the front end of the seat pot assembly is rotatably connected to, for example, the front end of the seat cushion frame. In this way, during the process of the seat back rotating backward to be flat, the backrest frame drives the second connecting piece to move downward and rotate, so that the second connecting piece pushes one end of the first connecting piece downward, so that the first connecting piece rotates. At this time, the other end of the first connecting piece rotates upward and pushes the rear end of the seat pot assembly. Since the front end of the seat pot assembly is rotatably connected to the seat cushion frame, the rear end of the seat pot assembly is rotated upward and lifted under the pushing action of the first connecting piece, thereby achieving the purpose of lifting the entire seat cushion, so that the seat cushion and the seat back are almost on the same plane, which is convenient for the user to lie flat on the seat to rest. Compared with the prior art which uses a double-layer crowbar structure to lift the supporting suspension spring of the seat cushion to achieve the level of the rear end of the seat cushion and the backrest, the lifting mechanism in the utility model can lift, for example, the ventilation duct or heating duct arranged at the lower end of the seat basin assembly together with the seat basin assembly, so that the seat back can be level with the seat cushion when it is folded back without affecting other comfort functions of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the seat in the embodiment of the utility model when it is in a flat state;

[0020] Figure 2 This is a schematic diagram of the structure of the seat in the embodiment of the utility model when it is in a leaning state;

[0021] Figure 3 It is a structural schematic diagram of another perspective when the seat in the embodiment of the utility model is in a flat state;

[0022] Figure 4 It is a schematic diagram of the assembly structure of the seat pan assembly, the lifting mechanism and the backrest frame when the seat is in a flat state in the embodiment of the utility model;

[0023] Figure 5 for Figure 4 A partial enlarged view of the middle part;

[0024] Figure 6 It is a schematic diagram of the assembly structure of the seat frame and the seat cushion frame in the embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1. Backrest frame; 11. Second fixing member; 2. Cushion frame; 21. Support plate; 22. Connecting plate; 23. First transverse tube; 24. Second transverse tube; 3. Seat pan assembly; 31. Seat pan; 311. Pan body; 312. Support suspension spring; 32. Seat frame; 321. First fixing member; 3211. First slide groove; 322. Bushing; 323. Connecting part; 4. Lifting mechanism; 41. First connecting member; 411. Plate body; 412. Bearing; 42. Second connecting member; 421. Second slide groove; 43. Third connecting member; 44. Fourth connecting member. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] The Z axis in the accompanying drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom; the X axis in the accompanying drawings represents the horizontal direction, and is designated as the front and back position, and the positive direction of the X axis represents the front side, and the reverse direction of the X axis represents the back side; the Y axis in the accompanying drawings represents the left and right positions, and the positive direction of the Y axis represents the left side, and the reverse direction of the Y axis represents the right side. It should also be noted that the aforementioned Z axis, Y axis, and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present 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 numbers used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0030] Combination Figure 1 and Figure 2As shown, an embodiment of the utility model provides a seat, including a backrest frame 1, a cushion frame 2 and a seat basin assembly 3, the first end of the seat basin assembly 3 is rotatably connected to the first end of the cushion frame 2, and the backrest frame 1 is rotatably connected to the second end of the cushion frame 2; it also includes a lifting mechanism 4, the lifting mechanism 4 includes a first connecting member 41 and a second connecting member 42, the second connecting member 42 is rotatably connected to the backrest frame 1, the middle position of the first connecting member 41 is rotatably connected to the second end of the cushion frame 2, the two ends of the first connecting member 41 are respectively rotatably connected to the second end of the seat basin assembly 3 and the second connecting member 42, and the first connecting member 41 is used to push the second end of the seat basin assembly 3 to rotate upward; wherein, the first end and the second end of the seat basin assembly 3 are respectively the two ends of the seat basin assembly 3 along the front and rear direction of the vehicle, and the first end and the second end of the cushion frame 2 are respectively the two ends of the cushion frame 2 along the front and rear direction of the vehicle.

[0031] It should be noted that the front and rear directions of the vehicle are Figure 1 The X-axis direction is referred to as the front-to-back direction. Correspondingly, the left-to-right direction of the vehicle is Figure 1 The middle Y-axis direction is referred to as the left-right direction.

[0032] Specifically, the lower end of the backrest frame 1 is usually rotationally connected to the rear end of the cushion frame 2, the front end of the seat pot assembly 3 is usually rotationally connected to the front end of the seat pot assembly 2, for example, the first transverse tube 23, and the lifting mechanism 4 is usually arranged at the rear end of the seat pot assembly 3, and is used to drive the rear end of the seat pot assembly 3 to rotate upward around the front end axis of the seat pot assembly 3 (i.e., the axis of the rotational connection between the front end of the seat pot assembly 3 and the cushion frame 2). More specifically, one end of the first connecting member 41 of the lifting mechanism 4 is rotationally connected to the rear end of the seat pot assembly 3, and the other end is rotationally connected to the second connecting member 42, and the middle position of the first connecting member 41 is usually rotationally connected to the rear end of the cushion frame 2, for example, the second transverse tube 24, and the second connecting member 42 is also rotationally connected to the backrest frame 1. The seat has a leaning state and a flat state. When the seat is in the leaning state, such as Figure 2 As shown in FIG. 1 , the seat back and the seat cushion are usually arranged at a right angle or an obtuse angle to facilitate the user to lean on the seat back in a sitting posture. At this time, it can also be called the use state of the seat; when the user activates, for example, a backrest adjustment button to rotate the seat back backward to a flat position, as shown in FIG. Figure 3 As shown, the rear end of the seat cushion rotates upward under the action of the lifting mechanism 4, so that the seat cushion and the seat back are almost on the same plane. At this time, the seat is in a flat state, which can also be called the non-use state of the seat, which is convenient for the user to lie flat on the seat to rest.

[0033] The seat in this embodiment can be provided with a lifting mechanism 4, and the second connecting member 42 of the lifting mechanism 4 is rotatably connected to the backrest frame 1, the middle position of the first connecting member 41 is rotatably connected to the rear end of the cushion frame 2, and the two ends of the first connecting member 41 are respectively rotatably connected to the rear end of the seat pot assembly 3 and the second connecting member 42. At the same time, the front end of the seat pot assembly 3 is rotatably connected to the front end of the cushion frame 2. In this way, in the process of the seat back rotating backward to be flat, the backrest frame 1 drives the second connecting member 42 to move downward and rotate, so that the second connecting member 42 pushes one end of the first connecting member 41 downward, so that the first connecting member 41 rotates. At this time, the other end of the first connecting member 41 rotates upward and pushes the rear end of the seat pot assembly 3. Since the front end of the seat pot assembly 3 is rotatably connected to the cushion frame 2, the rear end of the seat pot assembly 3 is rotated and lifted upward under the pushing action of the first connecting member 41, thereby achieving the purpose of lifting the entire seat cushion, so that the seat cushion and the seat back are almost on the same plane, which is convenient for the user to lie flat on the seat to rest. Compared with the prior art which uses a double-layer crowbar structure to lift the supporting suspension spring of the seat cushion to achieve the level of the rear end of the seat cushion and the backrest, the lifting mechanism 4 in this embodiment can lift, for example, the ventilation duct or heating duct arranged at the lower end of the seat basin assembly 3 together with the seat basin assembly 3, so that the seat back can be level with the seat cushion when it is folded back without affecting other comfort functions of the seat.

[0034] Optionally, combined Figure 1 As shown, the second connecting member 42 is rotatably connected to the side of the backrest frame 1 facing away from the seat pan assembly 3 .

[0035] In this embodiment, since the seat is often in a reclining state (i.e., in use state), for the convenience of description, the positional relationship between the second connecting member 42 and the backrest frame 1 is usually reflected with reference to the seat in use state. Therefore, the side of the backrest frame 1 away from the seat basin assembly 3 can be understood as the rear side of the backrest frame 1, and the second connecting member 42 is usually arranged at the rear side of the lower end of the backrest frame 1. When the seat back is laid flat, the side of the backrest frame 1 away from the seat basin assembly 3 becomes the lower side of the backrest frame 1. At this time, the second connecting member 42 is located below the backrest frame 1. In this way, by rotating the second connecting member 42 to connect to the backrest frame 1 away from the seat basin assembly 3, for example, the rear side, so that the second connecting member 42 can avoid other components arranged below the seat basin assembly 3 to avoid interference, and at the same time, the movement stroke of the second connecting member 42 can be reduced, so as to shorten the size of the second connecting member 42, thereby reducing the overall volume of the lifting mechanism 4 and facilitating the arrangement.

[0036] Optionally, combined Figures 3 to 5As shown, the seat basin assembly 3 includes a seat basin 31 and a seat frame 32, the seat basin 31 is connected to the seat frame 32, the end of the seat frame 32 away from the backrest frame 1 is rotatably connected to the cushion frame 2, the end of the seat frame 32 close to the backrest frame 1 is provided with a first fixing member 321, the backrest frame 1 is provided with a second fixing member 11, the first connecting member 41 is rotatably connected to the first fixing member 321, and the second connecting member 42 is rotatably connected to the second fixing member 11.

[0037] In this embodiment, the seat basin 31 can be a full-basin structure or a half-disc structure. When the seat basin 31 is a full-basin structure, the entire seat basin 31 is a stamping part. When the seat basin 31 is a half-disc structure, Figure 3 As shown, a part of the seat pot 31 is a pot body 311 made by stamping process, and the other part is a supporting suspension spring 312. The seat pot 31 is usually fixed to the seat frame 32 by bolts, and the front end of the seat frame 32 is rotatably connected to the front end of the seat cushion frame 2. The rear end of the seat frame 32 is provided with a first fixing member 321, and the lower rear side of the backrest frame 1 is provided with a second fixing member 11. The first fixing member 321 and the second fixing member 11 are usually flat plate structures, and the first fixing member 321 and the seat frame 32, and the second fixing member 11 and the backrest frame 1 are usually fixedly connected by welding. Moreover, the seat frame 32 is rotatably connected to the first connecting member 41 through the first fixing member 321, and the backrest frame 1 is rotatably connected to the second connecting member 42 through the second fixing member 11. In this way, the rotation connection between the seat frame 32 and the first connecting member 41, and between the backrest frame 1 and the second connecting member 42 can be achieved without changing or less changing the original structure of the seat frame 32 and the backrest frame 1, thereby reducing the difficulty of seat production.

[0038] Optionally, combined Figure 4 and Figure 5 As shown, the seat pan assembly 3 is provided with lifting mechanisms 4 on both sides along the left-right direction of the vehicle, and the second fixing member 11 is provided corresponding to the lifting mechanism 4 , and the second fixing member 11 is provided at the lower end of the backrest frame 1 .

[0039] In this embodiment, a lifting mechanism 4 is provided on each of the left and right sides of the seat pot assembly 3, and a second fixing member 11 is provided on each of the left and right ends of the backrest frame 1. In this way, the two lifting mechanisms 4 on the left and right sides of the seat pot assembly 3 can be used to share the load on the seat pot assembly 3, so that the seat cushion is evenly stressed and is not prone to tilting (i.e., the seat cushion tilts to the left or right); and by arranging the second fixing member 11 at the lower end of the backrest frame 1, the movement stroke of the second connecting member 42 can be further shortened, thereby reducing the space occupied by the second connecting member 42 and even the entire lifting mechanism 4 when in motion, and facilitating layout.

[0040] Optionally, combined Figure 5As shown, the lifting mechanism 4 also includes a third connecting member 43 , the first connecting member 41 is rotatably connected to the first fixing member 321 via the third connecting member 43 , and the first fixing member 321 is provided with a first sliding groove 3211 , and the third connecting member 43 is used to slide in the first sliding groove 3211 .

[0041] Specifically, the first slide groove 3211 is generally an arc-shaped groove structure extending substantially in the front-to-back direction. The first slide groove 3211 may be a through hole structure penetrating the first fixing member 321 in the left-right direction, or a groove structure not penetrating the first fixing member 321, which is not specifically limited here. When the seat is in a reclining state, the third connecting member 43 is generally located at the front end of the first slide groove 3211 and abuts against the front end groove wall of the first slide groove 3211. When the seat is in a flat state, the third connecting member 43 is generally located at the rear end of the first slide groove 3211 and abuts against the rear end groove wall of the first slide groove 3211. The third connecting member 43 may be a pin or a bolt. When the third connecting member 43 is a pin shaft, a through hole structure is usually provided on the first connecting member 41. The first connecting member 41 and the third connecting member 43 are assembled by passing the pin shaft through the through hole structure and inserting it into the first slide groove 3211, and locking it with a latch. Moreover, in the process of the first connecting member 41 rotating around the second cross tube 24, one end of the first connecting member 41 rotates around the pin shaft and drives the pin shaft to slide in the first slide groove 3211. When the third connecting member 43 is a bolt, if the first slide groove 3211 is a groove structure, the first connecting member 41 is usually provided with a threaded hole, and the first connecting member 41 and the third connecting member 43 are assembled by passing the bolt through the threaded hole and the first slide groove 3211. At this time, the third connecting member 43 can be locked by using the threaded connection between the bolt and the first connecting member 41; if the first slide groove 3211 is a through hole structure, the first connecting member 41 is usually provided with a through hole structure without threads, that is, a light hole structure, and at this time, the bolt can be locked with a nut; and, in the process of the first connecting member 41 rotating around the second transverse tube 24, the first connecting member 41 drives the bolt to rotate and slide in the first slide groove 3211. In practical applications, in order to reduce production costs and facilitate assembly, it is usually preferred that the first slide groove 3211 is a through hole structure and the third connecting member 43 is a bolt.

[0042] If the third connecting member 43 is fixed at the front end of the first slide groove 3211, that is, the third connecting member 43 does not slide along the first slide groove 3211, the first connecting member 41 needs to exert a larger force to drive the rear end of the seat basin assembly 3 to rotate upward; if the third connecting member 43 is fixed at the rear end of the first slide groove 3211, the rear end of the seat basin assembly 3 rotates downward to reset, and there is a larger distance between the seat cushion and the seat back. Therefore, in this embodiment, by providing the first slide groove 3211 on the first fixing member 321, and making the third connecting member 43 slide in the first slide groove 3211, when the first connecting member 41 rotates around the second cross tube 24 to drive the seat pot assembly 3 to be lifted upward, the third connecting member 43 can first slide from the front end of the first slide groove 3211 to the rear end while rotating together with the first connecting member 41, and then push the rear end of the seat pot assembly 3 upward together with the first connecting member 41, thereby reducing the force applied by the first connecting member 41 when lifting the seat pot assembly 3, and ensuring a small distance between the seat cushion and the seat back after the seat pot assembly 3 is reset.

[0043] Optionally, combined Figure 5 As shown, a bushing 322 is further provided on the seat frame 32 . The bushing 322 is arranged in the first sliding groove 3211 , and the third connecting member 43 is used to slide in the bushing 322 .

[0044] In this embodiment, the shape of the bushing 322 matches the shape of the first slide groove 3211, and the bushing 322 is usually interference fit with the first slide groove 3211, so that the bushing 322 is firmly embedded in the first slide groove 3211, and the third connecting member 43 slides in the bushing 322. In this way, it can be avoided that the third connecting member 43 directly wears the first fixing member 321, and after the bushing 322 is worn, it can be repaired by directly replacing the bushing 322 without replacing the entire seat frame 32, thereby reducing the after-sales cost.

[0045] Optionally, combined Figure 5 As shown, the lifting mechanism 4 further includes a fourth connecting member 44 , the first connecting member 41 is rotatably connected to the second connecting member 42 via the fourth connecting member 44 , and the second connecting member 42 is provided with a second sliding groove 421 , and the fourth connecting member 44 is used to slide in the second sliding groove 421 .

[0046] Specifically, the second connecting member 42 is usually a plate-like structure with a certain length, and is usually tilted relative to the vertical direction. The second slide groove 421 is usually a groove structure extending substantially along the length direction of the second connecting member 42. Moreover, the second slide groove 421 can be a through-hole structure that penetrates the second connecting member 42 in the left-right direction, or a groove structure that does not penetrate the second connecting member 42, which is not specifically limited here. When the seat is in a reclining state, the fourth connecting member 44 is usually located at the lower end of the second slide groove 421 and abuts against the lower end groove wall of the second slide groove 421. When the seat is in a flat state, the fourth connecting member 44 is usually located at the upper end of the second slide groove 421 and abuts against the upper end groove wall of the second slide groove 421. Like the third connecting member 43, the fourth connecting member 44 can be a pin or a bolt, and the second connecting member 42 and the first connecting member 41 are assembled at the fourth connecting member 44 in the same manner as the first fixing member 321 and the first connecting member 41 are assembled at the third connecting member 43. In practical applications, in order to reduce production costs and facilitate assembly, it is usually preferred that the second slide groove 421 is a through-hole structure and the fourth connecting member 44 is a bolt. When the backrest frame 1 is laid back, the second connecting member 42 rotates around the fourth connecting member 44 and moves downward, so that the fourth connecting member 44 slides in the second slide groove 421 relative to the second connecting member 42.

[0047] In this embodiment, when the seat back is reset from the flat state to the leaning state, the second connecting member 42 is reset under the rotation of the backrest frame 1, and the rear end of the seat frame 32 moves downward under the weight of the human body, so that the seat frame 32 drives one end of the first connecting member 41 to rotate downward through the third connecting member 43, and the other end of the first connecting member 41 drives the fourth connecting member 44 to slide upward along the second slide groove 421 to reset the first connecting member 41. In this way, the seat does not need to use a power mechanism to drive the backrest to flip or an additional power mechanism to drive the first connecting member 41 to reset, which has good economic efficiency.

[0048] Furthermore, combined with Figure 5 As shown, the first slide groove 3211 penetrates the first fixing member 321 along the left-right direction of the vehicle, and / or the second slide groove 421 penetrates the second connecting member 42 along the left-right direction of the vehicle. In other words, the first slide groove 3211 and / or the second slide groove 421 are through-hole structures, which can not only reduce the weight of the seat, but also facilitate processing and manufacturing, thereby improving production efficiency.

[0049] Optionally, combined Figure 4 and Figure 6As shown, the first connecting member 41 includes a plate body 411 and a bearing 412. The two ends of the plate body 411 are rotatably connected to the second end of the seat basin assembly 3 and the second connecting member 42 respectively. The bearing 412 is connected to the middle position of the plate body 411 and is rotatably connected to the cushion frame 2.

[0050] In this embodiment, the first connecting member 41 is composed of a plate body 411 and a bearing 412, wherein the bearing 412 is sleeved on the second transverse tube 24 at the rear end of the cushion frame 2 and is rotatably connected to the second transverse tube 24, and the middle position of the plate body 411 is an arc structure that matches the bearing 412, and the bearing 412 is also fixed to the middle position of the plate body 411 by bolts. Taking the posture of the first connecting member 41 when the seat is in a leaning state as an example, one end of the arc structure is roughly extended toward the seat frame 32 along the front-to-back direction, and the other end is roughly extended backward along the front-to-back direction, and the distance that one end of the arc structure extends forward is greater than the distance that the other end of the arc structure extends backward, so that the plate body 411 as a whole is roughly a meniscus-shaped structure. In this way, using the bearing 412 to realize the rotational connection between the first connecting member 41 and the cushion frame 2 can not only reduce the rotational friction, but also improve the structural strength of the rotational connection between the two, and ensure the stability of the rotational connection.

[0051] In other embodiments, the first connecting member 41 may be a plate-like structure as a whole. In this case, a circular hole with a diameter slightly larger than the outer diameter of the second transverse tube 24 is opened in the middle position of the first connecting member 41. The first connecting member 41 is assembled by sleeved on the second transverse tube 24, and the first connecting member 41 can rotate around the second transverse tube 24 under the action of the second connecting member 42 or the seat frame 32.

[0052] Optionally, combined Figure 6 As shown, a support plate 21 is provided at the first end of the seat cushion frame 2, and a connection portion 323 is provided at one end of the seat frame 32 away from the backrest frame 1, and the support plate 21 is rotatably connected to the connection portion 323.

[0053] In this embodiment, the support plate 21 is usually welded to the first transverse tube 23 located at the front end of the seat frame 2, and the front end of the seat frame 32 is provided with a connecting portion 323, which is usually welded to the front end of the seat frame 32 or formed integrally with the seat frame 32. The connecting portion 323 and the support plate 21 can be rotatably connected by a rotating shaft or a bolt, wherein the rotating shaft can be a separate component such as a pin, or can be an integral structure formed with the connecting portion 323 or the support plate 21, which is not specifically limited here. In this way, by arranging the support plate 21 on, for example, the first transverse tube 23 at the front end of the seat frame 2, a rotational connection point is provided for the seat frame 32, and at the same time, by arranging the connecting portion 323 at, for example, the front end of the seat frame 32, the rotational connection between the seat frame 32 and the seat frame 2 is realized by utilizing the rotational connection between the connecting portion 323 and the support plate 21.

[0054] Furthermore, a connecting plate 22 is further provided at the first end of the seat cushion frame 2 , the supporting plate 21 is detachably connected to the connecting plate 22 via a fastener, and the connecting portion 323 is rotatably connected to the connecting plate 22 .

[0055] In this embodiment, the connecting plate 22 is usually fixed to the supporting plate 21 by bolts, and the supporting plate 21 is rotatably connected to the connecting portion 323 of the seat frame 32 through the connecting plate 22. In this way, the structural strength of the connecting position of the seat frame 32 and the seat cushion frame 2 can be improved to ensure the stability of the connection between the two; moreover, when the connecting plate 22 is damaged, it can be repaired by directly replacing the connecting plate 22 without replacing the entire first transverse tube 23 of the seat cushion frame 2, thereby reducing the after-sales cost.

[0056] Another embodiment of the present invention provides a vehicle, comprising the seat as described above.

[0057] The beneficial effects of the vehicle in this embodiment relative to the prior art are the same as those of the above-mentioned seat, which will not be described in detail here.

[0058] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A seat, characterized in that: It comprises a backrest frame (1), a seat cushion frame (2) and a seat basin assembly (3), wherein the first end of the seat basin assembly (3) is rotatably connected to the first end of the seat cushion frame (2), and the backrest frame (1) is rotatably connected to the second end of the seat cushion frame (2); The lifting mechanism (4) further comprises a first connecting member (41) and a second connecting member (42), wherein the second connecting member (42) is rotatably connected to the backrest frame (1), a middle position of the first connecting member (41) is rotatably connected to the second end of the seat cushion frame (2), two ends of the first connecting member (41) are rotatably connected to the second end of the seat basin assembly (3) and the second connecting member (42), and the first connecting member (41) is used to push the second end of the seat basin assembly (3) to rotate upward; The first end and the second end of the seat basin assembly (3) are respectively the two ends of the seat basin assembly (3) along the front-rear direction of the vehicle, and the first end and the second end of the seat cushion frame (2) are respectively the two ends of the seat cushion frame (2) along the front-rear direction of the vehicle.

2. The seat according to claim 1, characterized in that: The second connecting member (42) is rotatably connected to a side of the backrest frame (1) facing away from the seat basin assembly (3).

3. The seat according to claim 1, characterized in that: The seat basin assembly (3) comprises a seat basin (31) and a seat frame (32), wherein the seat basin (31) is connected to the seat frame (32), and one end of the seat frame (32) away from the backrest frame (1) is rotatably connected to the cushion frame (2), and one end of the seat frame (32) close to the backrest frame (1) is provided with a first fixing member (321), and the backrest frame (1) is provided with a second fixing member (11), and the first connecting member (41) is rotatably connected to the first fixing member (321), and the second connecting member (42) is rotatably connected to the second fixing member (11).

4. The seat according to claim 3, characterized in that: The seat pan assembly (3) is provided with the lifting mechanism (4) on both sides along the left-right direction of the vehicle, the second fixing member (11) is arranged corresponding to the lifting mechanism (4), and the second fixing member (11) is arranged at the lower end of the backrest frame (1).

5. The seat according to claim 3, characterized in that: The lifting mechanism (4) also includes a third connecting member (43), the first connecting member (41) is rotatably connected to the first fixing member (321) through the third connecting member (43), and the first fixing member (321) is provided with a first sliding groove (3211), and the third connecting member (43) is used to slide in the first sliding groove (3211).

6. The seat according to claim 5, characterized in that: The seat frame (32) is also provided with a bushing (322), the bushing (322) is arranged in the first sliding groove (3211), and the third connecting member (43) is used to slide in the bushing (322).

7. The seat according to claim 1, characterized in that: The lifting mechanism (4) also includes a fourth connecting member (44), the first connecting member (41) is rotatably connected to the second connecting member (42) through the fourth connecting member (44), and the second connecting member (42) is provided with a second sliding groove (421), and the fourth connecting member (44) is used to slide in the second sliding groove (421).

8. The seat according to claim 1, characterized in that: The first connecting member (41) includes a plate body (411) and a bearing (412), the two ends of the plate body (411) are rotatably connected to the second end of the seat basin assembly (3) and the second connecting member (42), respectively, and the bearing (412) is connected to the middle position of the plate body (411) and is rotatably connected to the seat cushion frame (2).

9. The seat according to claim 3, characterized in that: A support plate (21) is provided at the first end of the seat cushion frame (2), a connecting portion (323) is provided at one end of the seat frame (32) away from the backrest frame (1), and the support plate (21) is rotatably connected to the connecting portion (323).

10. A vehicle, characterized in that: Comprising a seat as described in any one of claims 1-9.

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