A seat and a vehicle

Abstract

The application relates to the technical field of vehicles, in particular to a seat and a car. The seat comprises a cushion framework and a backrest framework; a connecting assembly movably connects the cushion framework and the backrest framework; and a first driving unit is connected with the connecting assembly, and the first driving unit can drive the backrest framework to move relative to the cushion framework under the condition of rotation. The seat and the car provided by the application comprise the connecting assembly and the first driving unit. Since the connecting assembly movably connects the cushion framework and the backrest framework of the seat, the first driving unit is connected with the connecting assembly, and the first driving unit can drive the backrest framework to move relative to the cushion framework under the condition of rotation, the length of the cushion framework can be adjusted, the seat can meet the riding requirements of adults and children by adjusting the length of the cushion framework, and the riding comfort is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a seat and a car. BACKGROUND

[0002] The seat is a kind of seat with backrest, cushion, and some with armrest. The seat has multiple application scenarios, such as car, office, and amusement facilities. In most cases, the backrest of the seat can be folded flat or angle-adjusted to meet the needs of different people and improve the riding comfort. However, the existing seat is generally not designed for children. The length of the seat is designed according to the body of an adult. Children have smaller bodies than adults, and their legs are shorter than adults. Since the length of the existing seat cannot be reduced, children cannot maintain a comfortable riding posture when sitting on the seat in many situations. SUMMARY

[0003] The present application provides a seat and a car, which solves the technical problem that the length of the seat in the related art cannot be reduced, resulting in that children cannot maintain a comfortable riding posture when sitting on the seat in many situations.

[0004] In one aspect, the present application provides a seat, which comprises:

[0005] a cushion framework and a backrest framework;

[0006] a connecting assembly movably connecting the cushion framework and the backrest framework;

[0007] a first driving unit connected to the connecting assembly, the first driving unit being capable of moving the backrest framework relative to the cushion framework under rotation.

[0008] In some embodiments, the first driving unit comprises a first driving assembly and a first transmission assembly, the first driving assembly being in transmission connection with the first transmission assembly, the first transmission assembly being in transmission connection with the connecting assembly, and the first driving assembly being capable of moving the backrest framework relative to the cushion framework through the first transmission assembly under rotation.

[0009] In some embodiments, the first transmission assembly comprises a first transmission member and a first sliding member, the first transmission member being in transmission connection with the first driving assembly, and the connecting assembly being connected to the first sliding member, the first driving assembly being capable of rotating the first transmission member to move the first sliding member relative to the first transmission member, so as to move the backrest framework relative to the cushion framework through the connecting assembly.

[0010] In some embodiments, the first driving assembly comprises a first knob, a driving rod, a first gear and a second gear, the first knob is movably arranged outside the cushion framework, the driving rod is connected with the first knob, the first gear is assembled at one end of the driving rod, and the second gear is assembled at one end of the first transmission assembly, and the first gear is engaged with the second gear.

[0011] In some embodiments, the seat further comprises a second driving unit, the second driving unit is arranged outside the backrest framework, and the second driving unit is connected with the backrest framework to drive the backrest framework to rotate relative to the cushion framework.

[0012] In some embodiments, the second driving unit comprises a second driving assembly and a second transmission assembly, the second driving assembly is in transmission connection with the second transmission assembly, the second transmission assembly is in transmission connection with the backrest framework, and the second driving assembly can drive the backrest framework to rotate relative to the cushion framework through the second transmission assembly.

[0013] In some embodiments, the second transmission assembly comprises a first transmission rod, a worm gear and a worm, the worm gear is fixedly assembled on the first transmission rod, the first transmission rod is in transmission connection with the backrest framework, and the second driving assembly can drive the worm to rotate, so that the worm gear and the first transmission rod rotate to drive the backrest framework to rotate relative to the cushion framework.

[0014] In some embodiments, the second driving assembly comprises a handle, a second transmission rod, a third transmission rod, a third gear and a fourth gear, the second transmission rod and the third transmission rod are movably arranged outside the backrest framework, the third gear is fixedly assembled on the second transmission rod, and the handle is fixedly arranged at the outer end of the second transmission rod, the fourth gear is fixedly assembled on the third transmission rod, and the third gear and the fourth gear are in engagement transmission, and the third transmission rod is in transmission connection with the second transmission assembly.

[0015] In some embodiments, the seat further comprises a protection unit, the protection unit can be switched between a storage state and a protection state, when the protection unit is in the storage state, the protection unit is stored in the mounting groove of the backrest framework, and when the protection unit is in the protection state, the protection unit extends from the backrest framework and is detachably connected with the cushion framework to protect the passenger.

[0016] In some embodiments, the protection unit comprises a protection assembly, the protection assembly comprises a first protection rod and a second protection rod, one end of the first protection rod is hingedly and movably arranged in the mounting groove, and the other end is hingedly connected with one end of the second protection rod.

[0017] When the protection assembly is in the storage state, the first protection rod is stored in the mounting groove and arranged close to the cushion framework, and the second protection rod is stored in the mounting groove and arranged away from the backrest framework; when the protection assembly is in the protection state, the first protection rod, the second protection rod, the cushion framework and the backrest framework form a protection space.

[0018] In some embodiments, the first protection rod and the second protection rod are provided with first magnets, and the bottom surface of the mounting groove is correspondingly provided with second magnets, the first magnets and the second magnets are attracted to each other, so that the first protection rod and the second protection rod are stored in the mounting groove.

[0019] In some embodiments, the protection assembly further comprises a third driving assembly, the backrest framework comprises a backrest framework body and a fixed rod arranged in the backrest framework body in the vertical direction, the mounting groove is arranged on one side of the fixed rod close to the cushion framework, the fixed rod is further provided with a mounting cavity, the bottom surface of the mounting groove is provided with a sliding hole, the sliding hole is in communication with the mounting cavity, at least part of the third driving assembly is arranged in the mounting cavity and hinged to one end of the first protection rod to drive the first protection rod to move in the sliding hole.

[0020] In some embodiments, the third driving assembly comprises a second knob, a second transmission member and a second sliding member, the second transmission member is arranged in the mounting cavity, the second knob is arranged on the top of the backrest framework and connected with the second transmission member, the first protection rod is hinged to the second sliding member, and rotation of the second knob can drive the first transmission member to rotate, so that the second sliding member can move relative to the second transmission member to drive the first protection rod to move in the sliding hole.

[0021] In some embodiments, one side of the mounting cavity is further provided with a sliding rail, and the second sliding member is slidingly arranged in the sliding rail.

[0022] In another aspect, the application further provides an automobile comprising the seat described above.

[0023] The application has the following beneficial effects:

[0024] The seat and the automobile provided by the application comprise a connecting assembly and a first driving unit, the connecting assembly is movably connected to the cushion framework and the backrest framework of the seat, the first driving unit is connected to the connecting assembly and can drive the backrest framework to move relative to the cushion framework under the condition of rotation, so that the length of the cushion framework can be adjusted, the seat can meet the seating requirements of adults and children at the same time by adjusting the length of the cushion framework, and the seating comfort is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application.

[0026] Figure 1 Structure diagram of seat framework provided by the embodiment Figure 1 ;

[0027] Figure 2 Structure diagram of seat framework provided by the embodiment Figure 1 ;

[0028] Figure 3 Structure diagram of seat framework provided by the embodiment Figure 1 ; Figure 1 ;

[0029] Figure 4 Structure diagram of seat framework provided by the embodiment Figure 1 ; Figure 2 ;

[0030] Figure 5 Structure diagram of seat framework provided by the embodiment Figure 2 ;

[0031] Figure 6 Structure diagram of seat framework provided by the embodiment Figure 5 ;

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 100 - seat framework, 110 - seat cushion framework, 111 - sliding groove, 112 - second reinforcing rod, 113 - limiting block, 120 - backrest framework, 121 - first reinforcing rod, 122 - fixing rod, 123 - mounting slot, 124 - sliding hole, 125 - sliding rail;

[0034] 200 - connecting assembly, 210 - connecting plate, 211 - first sliding block, 220 - connecting rod;

[0035] 300 - first driving unit, 310 - first driving assembly, 311 - first knob, 312 - driving rod, 313 - first gear, 314 - second gear, 320 - first transmission assembly, 321 - first transmission piece, 322 - first sliding piece;

[0036] 400 - second driving unit, 410 - second driving assembly, 411 - crank, 412 - second transmission rod, 413 - third transmission rod, 414 - third gear, 415 - fourth gear, 420 - second transmission assembly, 421 - first transmission rod, 422 - worm gear, 423 - worm, 430 - protective cover;

[0037] 500 - protection unit, 510 - protection assembly, 511 - first protection rod, 512 - second protection rod, 512a - outer rod, 512b - inner rod, 513 - plug buckle, 514 - plug ring, 520 - third driving assembly, 521 - second knob, 522 - second transmission piece, 523 - second sliding piece. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0039] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, motion condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0040] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0042] CombinationFigure 1 The embodiment of the present application provides a seat, which comprises a seat framework 100, a connecting assembly 200 and a first driving unit 300. The seat framework 100 comprises a seat cushion framework 110 and a backrest framework 120 arranged at an included angle, the backrest framework 120 is arranged at one side of the seat cushion framework 110, the seat cushion framework 110 is used for passenger seating, the backrest framework 120 is used for passenger backrest, the seat cushion framework 110 and the backrest framework 120 jointly support the weight of the passenger, and the space between the backrest framework 120 and the edge of the seat cushion framework 110 is the seating space of the passenger.

[0043] The connecting assembly 200 movably connects the seat cushion framework 110 and the backrest framework 120, the first driving unit 300 is connected with the connecting assembly 200, the first driving unit 300 can drive the backrest framework 120 to move relative to the seat cushion framework 110 under the condition of rotation, that is, rotating the first driving unit 300 can make the backrest framework 120 move relative to the seat cushion framework 110, so that the distance between the backrest framework 120 and the edge of the seat cushion framework 110 can be adjusted, and through the adjustment of the distance, the seat can meet the seating requirements of adults and children at the same time, and the seating comfort is improved.

[0044] It should be noted that, for the convenience of description, in this paper, when the passenger sits on the seat, the length direction of the passenger's thigh is defined as the first direction, and the width direction of the thigh is defined as the second direction, of course, the seat cushion framework 110 moves relative to the backrest framework 120 along the first direction to adjust the length of the seating space.

[0045] The connecting assembly 200 can be fixedly connected with the backrest framework 120 and movably connected with the seat cushion framework 110, the connecting assembly 200 moves to drive the backrest framework 120 to move on the seat cushion framework 110, so that the backrest framework 120 moves relative to the seat cushion framework 110, or the connecting assembly 200 can be movably connected with the backrest framework 120 and fixedly connected with the seat cushion framework 110, and the embodiment does not make any limitation.

[0046] Since the length of the seat cushion framework 110 along the first direction is longer, in order to make the adjustment range of the length of the seating space larger, in some embodiments, the connecting assembly 200 is fixedly connected with the backrest framework 120 and movably connected with the seat cushion framework 110, the connecting assembly 200 moves to drive the backrest framework 120 to move on the seat cushion framework 110 along the first direction, so that the backrest framework 120 moves relative to the seat cushion framework 110 along the first direction.

[0047] Specifically, in combination with Figure 1 and Figure 2The connecting assembly 200 comprises two connecting plates 210 and a connecting rod 220. The two connecting plates 210 are arranged on the two sides of the cushion framework 110. The lower part of the connecting plate 210 is slidably connected to the cushion framework 110, and the upper part of the connecting plate 210 is fixedly connected to the backrest framework 120. The connecting plate 210 can be arranged on the outside of the cushion framework 110 and the backrest framework 120, or arranged on the inside of the cushion framework 110 and the backrest framework 120, which is not limited in the embodiment. The connecting rod 220 is fixedly arranged between the lower parts of the two connecting plates 210, that is, the connecting rod 220 is arranged inside the cushion framework 110. In order to make the driving force of the first driving unit 300 applied to the connecting assembly 200 more balanced, the first driving unit 300 can be connected to the center of the connecting rod 220.

[0048] Of course, in other embodiments, the first driving unit 300 can also be connected to the connecting plate 210, which is not limited in the embodiment.

[0049] The lower part of the connecting plate 210 is provided with a first sliding block 211, and the two sides of the cushion framework 110 are provided with a sliding groove 111. The first sliding block 211 is slidably arranged in the sliding groove 111 on the same side, thereby providing a guide for the movement of the connecting plate 210 and making the movement of the connecting plate 210 more smooth. The first sliding block 211 slides in the sliding groove 111, that is, drives the backrest framework 120 to move relative to the cushion framework 110. Of course, the sliding groove 111 is arranged in the first direction.

[0050] In some embodiments, the first driving unit 300 comprises a first driving assembly 310 and a first transmission assembly 320. The first driving assembly 310 is in transmission connection with the first transmission assembly 320, the first transmission assembly 320 is in transmission connection with the connecting assembly 200, and the first driving assembly 310 can drive the backrest framework 120 to move relative to the cushion framework 110 through the first transmission assembly 320 under the condition of rotation.

[0051] The first transmission assembly 320 comprises a first transmission member 321 and a first sliding member 322. The first transmission member 321 is in transmission connection with the first driving assembly 310, and the connecting assembly 200 is connected with the first sliding member 322. The first driving assembly 310 can drive the first transmission member 321 to rotate, so that the first sliding member 322 can move relative to the first transmission member 321, thereby the first transmission member 321 drives the backrest framework 120 to move relative to the cushion framework 110 through the connecting assembly 200.

[0052] Specifically, the first sliding member 322 is connected with the connecting rod 220, and the first transmission assembly 320 is arranged inside the cushion framework 110, which avoids occupying additional space by the first transmission assembly 320 and also protects the first transmission assembly 320.

[0053] The first transmission assembly 320 comprises a first screw rod and a second sliding block, the second sliding block is screwed to the first screw rod to form a ball screw structure, the first screw rod is configured as a first transmission part, and the second sliding block is configured as a first sliding part. The first driving assembly 310 drives the first screw rod to rotate, thereby driving the second sliding block to move on the first screw rod. Of course, the first screw rod is arranged in the first direction, and the second sliding block can be connected with the connecting rod 220.

[0054] In some embodiments, the first driving assembly 310 comprises a first knob 311, a driving rod 312, a first gear 313 and a second gear 314. The driving rod 312, the first gear 313 and the second gear 314 are all arranged inside the cushion framework 110. The first knob 311 is movably arranged outside the cushion framework 110. The driving rod 312 is movably arranged on one side of the cushion framework 110 and is connected with the first knob 311. The first gear 313 is assembled to one end of the driving rod 312. The second gear 314 is assembled to one end of the first transmission assembly 320. The first gear 313 is engaged with the second gear 314. Thus, the first knob 311 is rotated to drive the driving rod 312 to rotate, the driving rod 312 drives the first gear 313 to rotate, the first gear 313 drives the second gear 314 to rotate, and the second gear 314 drives the first transmission assembly 320 to rotate.

[0055] The first transmission assembly 320 comprises a first transmission part 321 and a first sliding part 322. The second gear 314 is assembled to one end of the first transmission part 321. Thus, the second gear 314 can drive the first transmission part 321 to rotate, and the first sliding part 322 is moved relative to the first transmission part 321 to drive the backrest framework 120 to move relative to the cushion framework 110. Thus, the first driving assembly 310 drives the backrest framework 120 to move relative to the cushion framework 110 through the first transmission assembly 320 under the condition of rotation. The first knob 311 can be close to the side of the cushion framework 110 and is manually rotated. According to the above working principle, the passenger can adjust the length of the seating space by rotating the cushion framework 110, which is convenient and fast.

[0056] The first reinforcing rod 121 is arranged between the two sides of the backrest framework 120, and is used for supporting the backrest framework 120 and making the structure of the backrest framework 120 more stable. The second reinforcing rod 112 is arranged between the two sides of the cushion framework 110, and is used for reinforcing the structure of the cushion framework 110. The first reinforcing rod 121 and the second reinforcing rod 112 are arranged along the second direction. The first transmission member 321 is movably arranged in the second reinforcing rod 112, and the second reinforcing rod 112 can support and limit the second reinforcing rod 112, so that the second reinforcing rod 112 is more stable when rotating. The limiting block 113 is arranged on the second reinforcing rod 112, and the driving rod 312 is movably arranged in the limiting block 113. The limiting block 113 can support and limit the driving rod 312, so that the driving rod 312 is more stable when rotating.

[0057] Specifically, the driving rod 312 and the first transmission member 321 can be arranged vertically, that is, the first gear 313 and the second gear 314 are also arranged vertically. In order to facilitate the meshing transmission of the first gear 313 and the second gear 314, the first gear 313 and the second gear 314 are both helical gears.

[0058] In some embodiments, in combination with Figure 1 、 Figure 3 and Figure 4 , the seat further comprises a second driving unit 400, which is arranged outside the backrest framework 120 and connected with the backrest framework 120 to drive the backrest framework 120 to rotate relative to the cushion framework 110. That is, after adjusting the length of the seat space, the angle of the backrest can be further adjusted to further improve the comfort of the seat. Obviously, the second driving unit 400 drives the backrest framework 120 to rotate around the second direction.

[0059] The second driving unit 400 comprises a second driving assembly 410 and a second transmission assembly 420. The second driving assembly 410 is in transmission connection with the second transmission assembly 420. The second transmission assembly 420 is in transmission connection with the backrest framework 120. The second driving assembly 410 can drive the backrest framework 120 to rotate relative to the cushion framework 110 through the second transmission assembly 420.

[0060] The second transmission assembly 420 comprises a first transmission rod 421, a worm wheel 422 and a worm 423 which are in meshing connection. The worm wheel 422 is fixedly arranged on the first transmission rod 421. The first transmission rod 421 is in transmission connection with the backrest framework 120. The second driving assembly 410 can drive the worm 423 to rotate, so as to drive the worm wheel 422 and the first transmission rod 421 to rotate, thereby driving the backrest framework 120 to rotate relative to the cushion framework 110.

[0061] Of course, in other embodiments, the second transmission assembly 420 may also include a first transmission rod 421, a meshing gear and a rack, with the gear fixedly mounted on the first transmission rod 421. The first transmission rod 421 is connected to the backrest frame 120 in a transmission manner, and the second drive assembly 410 can drive the rack to move, causing the gear and the first transmission rod 421 to rotate, thereby driving the backrest frame 120 to rotate relative to the seat cushion frame 110. This embodiment does not limit this.

[0062] In some embodiments, the second drive assembly 410 includes a crank handle 411, a second transmission rod 412, a third transmission rod 413, a third gear 414, and a fourth gear 415. The second transmission rod 412 and the third transmission rod 413 are both movably disposed on the outside of the backrest frame 120. The third gear 414 is fixedly mounted to the second transmission rod 412, and the crank handle 411 is fixedly disposed at the outer end of the second transmission rod 412. The fourth gear 415 is fixedly mounted to the third transmission rod 413, and the third gear 414 and the fourth gear 415 mesh and drive each other. The third transmission rod 413 is connected to the second transmission assembly 420. Thus, cranking the crank handle 411 drives the second transmission rod 412 to rotate, which in turn drives the third gear 414 to rotate, which in turn drives the fourth gear 415 to rotate, which in turn drives the third transmission rod 413 to rotate. Consequently, the third transmission rod 413 drives a portion of the second transmission assembly 420 to rotate.

[0063] The second transmission assembly 420 includes a first transmission rod 421, a meshing worm gear 422 and a worm 423. The worm 423 can be assembled to a third transmission rod 413, so that the third transmission rod 413 can drive the worm 423 to rotate.

[0064] Specifically, the connecting plate 210 can be disposed on the outside of the backrest frame 120, the second drive unit 400 can be disposed on the outside of one of the connecting plates 210, and the first transmission rod 421 passes through the connecting plate 210 to be connected to the backrest frame 120.

[0065] In some embodiments, the second drive unit 400 further includes a protective cover 430, which is fixedly disposed on the outside of the connecting plate 210 and covers the second drive unit 400 to protect the components in the second drive unit 400. The crank handle 411 is movably inserted through the protective cover 430. According to the above working principle, the passenger can adjust the angle of the backrest frame 120 by cranking the crank handle 411.

[0066] To ensure children's safety, in some implementation methods, the following measures are combined: Figure 1 , Figure 5 and Figure 6 The seat also includes a protective unit 500, which can be in a stowed state (e.g., Figure 1 (as shown) and protection status (such as)Figure 5 The protection unit 500 is in the storage state when the seat is not used or an adult is seated (as shown in the figure), and is in the protection state when a child is seated on the seat to protect the child. Specifically, when the protection unit 500 is in the storage state, the protection unit 500 is stored in the mounting groove 123 of the backrest framework 120; when the protection unit 500 is in the protection state, the protection unit 500 is extended from the backrest framework 120 and is detachably connected to the cushion framework 110 to protect the child.

[0067] The protection unit 500 includes a protection assembly 510, which includes a first protection rod 511 and a second protection rod 512. One end of the first protection rod 511 is hingedly and movably arranged in the mounting groove 123, and the other end is hingedly connected to one end of the second protection rod 512. When the protection assembly 510 is in the storage state, the first protection rod 511 is stored in the mounting groove 123 and arranged close to the cushion framework 110, and the second protection rod 512 is stored in the mounting groove 123 and arranged away from the cushion framework 110, i.e., the first protection rod 511 is arranged below the second protection rod 512. Since one end of the first protection rod 511 is hingedly connected to the mounting groove 123, and the other end is hingedly connected to one end of the second protection rod 512, both the first protection rod 511 and the second protection rod 512 can rotate around the hinge points to form a folding effect. When a child is seated on the seat, the second protection rod 512 can be folded first, and then the first protection rod 511 is moved upward to a suitable position, and then the first protection rod 511 is folded, and the second protection rod 512 is folded again, so that the second protection rod 512 is detachably connected to the cushion framework 110. At this time, the protection unit 500 is switched to the protection state, and the first protection rod 511, the second protection rod 512, the cushion framework 110 and the backrest framework 120 form a protection space.

[0068] Of course, after the protection assembly 510 is used, the first protection rod 511 and the second protection rod 512 are folded in the reverse direction, so that the protection assembly 510 can be stored in the mounting groove 123 again.

[0069] Specifically, the mounting groove 123 is two, and the protection assembly 510 is two. The two protection assemblies 510 are arranged corresponding to the two mounting grooves 123, and the protection assembly 510 is stored in the corresponding mounting groove 123. The mounting groove 123 can be arranged vertically, and the two mounting grooves 123 are arranged vertically. When the protection unit 500 is in the protection state, the two first protection rods 511 are respectively arranged on the shoulders of the child, and the two first protection rods 511 can be slid to adapt to children of different heights. The connection points of the two second protection rods 512 and the cushion framework 110 are located between the legs of the child to effectively protect the child.

[0070] The other end of the second protection rod 512 is provided with an insertion buckle 513, and a corresponding insertion ring 514 is arranged on the cushion framework 110. The insertion buckle 513 is inserted into the corresponding insertion ring 514, so that the second protection rod 512 is detachably connected to the cushion framework 110. The insertion ring 514 can be arranged on the second reinforcing rod 112.

[0071] Since the distance from the shoulder to the cushion framework 110 is longer for children with higher height, the length of the second protection rod 512 needs to be longer. However, due to the limited length of the installation groove 123, the second protection rod 512 is not easy to store if the length is too long. Therefore, in some embodiments, the second protection rod 512 includes an outer rod 512a and an inner rod 512b telescopically arranged in the outer rod 512a. By adjusting the extension amount of the inner rod 512b relative to the outer rod 512a, the distance from the shoulder to the cushion framework 110 of children of different heights can be adapted. Of course, the insertion buckle 513 is arranged at the end of the inner rod 512b. When the protection assembly 510 is used up, the inner rod 512b is retracted into the outer rod 512a, and then stored in the installation groove 123.

[0072] The first protection rod 511 and the second protection rod 512 are provided with first magnets, and the bottom surface of the installation groove 123 is provided with corresponding second magnets. The magnetic poles of the first magnets and the second magnets are opposite. When the protection unit 500 is used up, the first magnets and the second magnets are attracted to each other, so that the first protection rod 511 and the second protection rod 512 are stored in the installation groove 123 and will not fall off from the installation groove 123. The operation is simple and convenient.

[0073] The protection unit 500 further includes a third driving assembly 520 for driving the first protection rod 511 to slide. Specifically, the backrest framework 120 includes a backrest framework 120 main body and a fixed rod 122 arranged in the backrest framework 120 main body in the vertical direction. The lower part of the fixed rod 122 can be arranged on the first reinforcing rod 121. The installation groove 123 is arranged on the side of the fixed rod 122 close to the cushion framework 110. The fixed rod 122 further includes a mounting cavity. The bottom surface of the installation groove 123 is provided with a sliding hole 124, which is in communication with the mounting cavity. At least part of the third driving assembly 520 is arranged in the mounting cavity and is hingedly connected to one end of the first protection rod 511 to drive the first protection rod 511 to move in the sliding hole 124. That is, the first protection rod 511 can move within the length range of the sliding hole 124 to adapt to children of different heights.

[0074] The third driving assembly 520 comprises a second knob 521, a second transmission member 522 and a second sliding member 523. The second transmission member 522 is arranged in the mounting cavity. The second knob 521 is arranged on the top of the backrest framework 120 and connected with the second transmission member 522. The first protection rod 511 is hingedly connected with the second sliding member 523. The second knob 521 is rotatable to drive the first transmission member 321 to rotate, so that the second sliding member 523 is movable relative to the second transmission member 522 to drive the first protection rod 511 to move in the sliding hole 124. Of course, the second sliding member 523 is movable only within the length range of the sliding hole 124.

[0075] Specifically, the third driving assembly 520 comprises a second screw rod and a third sliding block. The second screw rod and the third sliding block constitute a ball screw structure. The second screw rod is configured as the second transmission member 522. The third sliding block is configured as the second sliding member 523. The second knob 521 is rotatable to drive the second screw rod to rotate, so that the third sliding block is movable on the second screw rod.

[0076] To make the second sliding member 523 move more smoothly, a slide rail 125 is arranged on one side of the mounting cavity. The second sliding member 523 is slidably arranged in the slide rail 125. The second transmission member 522 can be arranged in the slide rail 125, so that the second sliding member 523 can slide on the slide rail 125 while being in transmission connection with the second transmission member 522. The slide rail 125 can be a T-shaped slide rail 125. Correspondingly, the second sliding member 523 is a T-shaped sliding block.

[0077] Based on the same inventive concept, the application also provides an automobile comprising the seat described above. The automobile has the same advantages as the seat, and thus will not be described herein.

[0078] The seat and the automobile provided by the application comprise the connecting assembly 200 and the first driving unit 300. Since the connecting assembly 200 is movably connected with the cushion framework 110 and the backrest framework 120 of the seat, and the first driving unit 300 is connected with the connecting assembly 200 and can drive the backrest framework 120 to move relative to the cushion framework 110 under the condition of rotation, the length of the cushion framework 110 can be adjusted. Therefore, the seat can meet the seating requirements of both adults and children by adjusting the length of the cushion framework 110, and the seating comfort is improved.

[0079] Although the preferred embodiments of the application have been described, those skilled in the art who have the benefit of the basic inventive concept can make additional changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including all the preferred embodiments and all the changes and modifications falling within the scope of the application.

[0080] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A seat, characterized in that, The seat comprises: a seat cushion framework and a backrest framework; a connecting assembly movably connecting the seat cushion framework and the backrest framework, the backrest framework comprising a backrest framework body and a fixed rod vertically arranged in the backrest framework body, the fixed rod being provided with a mounting groove near one side of the seat cushion framework, and the fixed rod further being provided with a mounting cavity, a sliding hole being formed in the bottom surface of the mounting groove and being in communication with the mounting cavity; a first driving unit connected with the connecting assembly, the first driving unit being capable of moving the backrest framework relative to the seat cushion framework under the condition of rotation; a protection unit switchable between a storage state and a protection state, the protection unit comprising a protection assembly and a third driving assembly, the protection assembly comprising a first protection rod and a second protection rod, one end of the first protection rod being movably arranged in the mounting groove and the other end of the first protection rod being hingedly connected to one end of the second protection rod; when the protection unit is in the storage state, the first protection rod is stored in the mounting groove and is arranged close to the seat cushion framework, and the second protection rod is stored in the mounting groove and is arranged away from the seat cushion framework; when the protection unit is in the protection state, the first protection rod, the second protection rod, the seat cushion framework and the backrest framework form a protection space, the second protection rod is detachably connected to the seat cushion framework, at least part of the third driving assembly is arranged in the mounting cavity and is hingedly connected to one end of the first protection rod to drive the first protection rod to move in the sliding hole.

2. The seat of claim 1, wherein The first driving unit comprises a first driving assembly and a first transmission assembly, the first driving assembly being in transmission connection with the first transmission assembly, the first transmission assembly being in transmission connection with the connecting assembly, and the first driving assembly being capable of moving the backrest framework relative to the seat cushion framework under the condition of rotation through the first transmission assembly.

3. The seat of claim 2, wherein, The first transmission assembly comprises a first transmission member and a first sliding member, the first transmission member being in transmission connection with the first driving assembly, the connecting assembly being connected with the first sliding member, the first driving assembly being capable of driving the first transmission member to rotate, the first sliding member being capable of moving relative to the first transmission member to move the backrest framework relative to the seat cushion framework through the connecting assembly.

4. The seat of claim 2, wherein, The first driving assembly comprises a first knob, a driving rod, a first gear and a second gear, the first knob being movably arranged outside the seat cushion framework, the driving rod being connected with the first knob, the first gear being assembled to one end of the driving rod, and the second gear being assembled to one end of the first transmission assembly, the first gear being engaged with the second gear.

5. The seat of claim 1, wherein The seat further comprises a second driving unit, the second driving unit being arranged outside the backrest framework and being connected with the backrest framework to drive the backrest framework to rotate relative to the seat cushion framework.

6. The seat of claim 5, wherein The second driving unit comprises a second driving assembly and a second transmission assembly, the second driving assembly is in transmission connection with the second transmission assembly, the second transmission assembly is in transmission connection with the backrest framework, and the second driving assembly can drive the backrest framework to rotate relative to the cushion framework through the second transmission assembly.

7. The seat of claim 6, wherein The second transmission assembly comprises a first transmission rod, a worm gear and a worm, the worm gear is fixedly arranged on the first transmission rod, the first transmission rod is in transmission connection with the backrest framework, and the second driving assembly can drive the worm to rotate, so that the worm gear and the first transmission rod rotate to drive the backrest framework to rotate relative to the cushion framework.

8. The seat of claim 6, wherein The second driving assembly comprises a handle, a second transmission rod, a third transmission rod, a third gear and a fourth gear, the second transmission rod and the third transmission rod are movably arranged outside the backrest framework, the third gear is fixedly arranged on the second transmission rod, and the handle is fixedly arranged on the outer end of the second transmission rod, the fourth gear is fixedly arranged on the third transmission rod, and the third gear and the fourth gear are in meshing transmission, and the third transmission rod is in transmission connection with the second transmission assembly.

9. The seat of claim 1, wherein, The first protection rod and the second protection rod are provided with first magnets, and the bottom surface of the mounting groove is provided with second magnets in correspondence, the first magnets and the second magnets are attracted to each other, so that the first protection rod and the second protection rod are accommodated in the mounting groove.

10. The seat of claim 1, wherein, The third driving assembly comprises a second knob, a second transmission member and a second sliding member, the second transmission member is arranged in the mounting cavity, the second knob is arranged on the top of the backrest framework and connected with the second transmission member, the first protection rod is hingedly connected with the second sliding member, and the second knob is rotated to drive the second transmission member to rotate, so that the second sliding member can move relative to the second transmission member to drive the first protection rod to move in the sliding hole.

11. The seat of claim 10, wherein, One side of the mounting cavity is further provided with a sliding rail, and the second sliding member is slidably arranged in the sliding rail.

12. An automobile characterized by comprising: The seat comprises the seat as claimed in any one of claims 1-11.

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