A seat

Abstract

The application relates to the technical field of vehicle parts, and discloses a seat which comprises a seat body, a supporting assembly and a slide rail assembly; the seat body comprises a seat cushion and a backrest, the backrest is connected to the seat cushion; the slide rail assembly comprises an upper rail and a lower rail, the upper rail is fixed to one side of the seat cushion facing the supporting assembly, the lower rail is fixed to one side of the supporting assembly facing the seat cushion, and the upper rail is correspondingly matched with the lower rail and can move along the lower rail; the seat can prevent the slide rail from being stepped on by passengers, prolong the service life of the slide rail, reduce the obstacles under the feet of passengers, and make the passengers feel more comfortable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle parts, in particular to a seat. BACKGROUND

[0002] In order to enable the seat to move forward and backward in the vehicle, the seat is generally provided with a slide rail mechanism, but the existing seat is provided with the slide rail mechanism on the floor of the vehicle, the passenger's foot is easy to step on the slide rail, causing damage to the slide rail, reducing the service life of the slide rail, also causing obstacles to the passenger's foot, and bringing discomfort to the passenger's foot.

[0003] The vehicle seat disclosed in the patent document [publication number: CN102951046B] is provided with a first sliding mechanism and a second sliding mechanism, each of which includes a lower rail and an upper rail, wherein the lower rail and the upper rail are provided on the floor of the vehicle, and the passenger's foot is easy to step on the slide rail. SUMMARY

[0004] The purpose of the present application is to provide a seat which can protect the slide rail from being stepped on by the passenger, prolong the service life of the slide rail, reduce the obstacles to the passenger's foot, and make the passenger's foot more comfortable.

[0005] In order to achieve the above-mentioned purpose, the present application provides a seat, which comprises a seat body, a support assembly and a slide rail assembly.

[0006] The seat body comprises a seat cushion and a backrest, the backrest is rotationally connected to the seat cushion, the slide rail assembly comprises an upper rail and a lower rail, the upper rail is fixed to one side of the seat cushion facing the support assembly, the lower rail is fixed to one side of the support assembly facing the seat cushion, and the upper rail and the lower rail correspondingly cooperate and can move along the lower rail.

[0007] Further, the support assembly comprises a mounting member and a support leg, the mounting member is rotationally connected to the support leg, and the lower rail is fixed to the mounting member.

[0008] Further, the mounting member has a mounting groove, the seat cushion and the mounting groove can form a shielding space, and the slide rail assembly is arranged in the shielding space.

[0009] In some embodiments, a side hanging device is further included, the side hanging device comprises a seat lateral folding mechanism, one end of the seat lateral folding mechanism is connected to the mounting member, the other end is connected to a side plate of a vehicle body, and the seat lateral folding mechanism can fold the seat towards the side plate of the vehicle body.

[0010] In some embodiments, the side-hanging device further comprises a support leg folding mechanism, which is connected to the support leg and the side plate of the vehicle body, respectively; wherein when the seat lateral folding mechanism folds the seat towards the side plate of the vehicle body, the support leg folding mechanism can drive the support leg to fold towards the cushion.

[0011] In some embodiments, the side-hanging device further comprises a seat lateral locking mechanism, which is connected to the seat body and the side plate of the vehicle body, respectively.

[0012] Further, the seat lateral locking mechanism comprises a lock head and a lock catch corresponding to the lock head, the lock head is connected to the backrest away from the cushion, and the lock catch is connected to the side plate of the vehicle body.

[0013] Further, the side-hanging device further comprises a lock catch driving mechanism, which is connected to the seat lateral folding mechanism and the lock catch, respectively; wherein when the seat lateral folding mechanism folds the seat towards the side plate of the vehicle body, the lock catch driving mechanism can drive the lock catch to be buckled with the lock head.

[0014] In some embodiments, the support leg is fixedly connected with a first rotating shaft, and the support leg is rotatably connected with the mounting member through the first rotating shaft.

[0015] Further, the support leg folding mechanism comprises a first winch, a first pull rope and a fixing member, the first winch is coaxially connected with the first rotating shaft, the fixing member is fixed to the side plate of the vehicle body, one end of the first pull rope is fixedly connected with the first winch, and the other end is fixedly connected with the fixing member; wherein when the seat lateral folding mechanism folds the seat towards the side plate of the vehicle body, the first pull rope can rotate the first winch to drive the first rotating shaft to fold the support leg towards the cushion.

[0016] Further, the support leg folding mechanism further comprises a guide cylinder fixed to the seat lateral folding mechanism, and the guide cylinder is provided with a guide hole through which the first pull rope passes.

[0017] Further, the support leg folding mechanism further comprises a support leg reset spring, one end of the support leg reset spring is fixedly connected with the support leg, and the other end is fixedly connected with the cushion.

[0018] In some embodiments, the seat lateral folding mechanism comprises a base and a second rotating shaft, one end of the base is fixedly connected with the mounting member, and the other end is rotatably connected with the side plate of the vehicle body through the second rotating shaft.

[0019] Furthermore, a fixing seat is fixedly installed on the vehicle side panel, and the latch is connected to the vehicle side panel through the fixing seat; the latch has a first end and a second end, the first end being rotatably connected to the fixing seat; wherein, the latch driving mechanism can drive the latch to rotate around the rotation axis of the first end, so that the second end can be latched and connected to the latch.

[0020] Furthermore, the latch drive mechanism includes a second winch, a second pull rope, and a latch return spring. The second winch is coaxially connected to the second rotating shaft. One end of the second pull rope is fixedly connected to the second winch, and the other end is fixedly connected to the latch. One end of the latch return spring is fixedly connected to the fixed seat, and the other end is fixedly connected to the latch. When the seat lateral folding mechanism folds the seat towards the side panel of the vehicle body, the second winch can pull the second pull rope to drive the latch to overcome the force of the latch return spring and rotate around the rotation axis of the first end, so that the second end can be connected to the lock head latch.

[0021] Furthermore, the fixing base has a fixing groove, and a hinge is fixed in the fixing groove. The first end is rotatably connected to the fixing groove through the hinge. One end of the latch return spring is fixedly connected to the inner wall of the fixing groove, and the other end is fixedly connected to the latch. The latch driving mechanism can drive the latch to overcome the force of the latch return spring and rotate around the rotation axis of the first end, so that the second end can extend out of the fixing groove and connect with the lock head latch.

[0022] Furthermore, the side wall of the fixing groove is provided with a rope hole for the second pull rope to pass through.

[0023] Furthermore, the vehicle body side panel has a receiving hole, and the fixing seat is fixed to the receiving hole.

[0024] In some embodiments, a slide rail unlocking device is also included, which includes an unlocking drive mechanism and a slide rail locking mechanism. The unlocking drive mechanism is connected to the seat cushion and the backrest respectively, and the slide rail locking mechanism is connected to the unlocking drive mechanism and the seat cushion respectively. The unlocking drive mechanism can drive the slide rail locking mechanism to unlock the upper rail and the lower rail, so that the upper rail can move along the lower rail.

[0025] Furthermore, the slide rail unlocking device also includes a seat cushion forward-moving spring, one end of which is fixedly connected to the mounting component and the other end of which is fixedly connected to the upper rail; wherein, when the slide rail locking mechanism unlocks the upper rail and the lower rail, the spring force of the seat cushion forward-moving spring can drive the upper rail to move along the lower rail.

[0026] Further, the unlocking driving mechanism comprises a driving part, a driven part and a third pull rope, the driving part is installed on the backrest, the driven part is rotationally connected to the seat cushion, one end of the third pull rope is fixedly connected with the driven part and the other end is fixedly connected with the slide rail locking mechanism. Wherein, the driving part can rotate with the backrest and drive the driven part to pull the third pull rope to drive the slide rail locking mechanism to unlock the upper rail and the lower rail.

[0027] Further, the backrest is fixedly connected with a third rotating shaft, and the backrest is rotationally connected with the seat cushion through the third rotating shaft.

[0028] Further, the driving part comprises a dial and a dial rod, the dial is coaxially connected with the third rotating shaft, and the dial rod is connected to the dial; the driven part comprises a third winch, a cam and a winch return spring, the third winch is fixedly connected with the third pull rope, the cam is fixed on one side of the third winch facing the dial, one end of the winch return spring is fixedly connected with the third winch and the other end is fixedly connected with the seat cushion; wherein, when the driving part rotates with the backrest to a preset angle, the dial rod can contact and push the cam, so that the third winch can rotate and pull the third pull rope to drive the slide rail locking mechanism to unlock the upper rail and the lower rail.

[0029] Further, the dial is provided with a fan-shaped slot, and a pin shaft is fixed in the fan-shaped slot; the dial rod has a third end and a fourth end, the third end is rotationally connected in the fan-shaped slot through the pin shaft, and the fourth end extends out of the fan-shaped slot, and the fourth end is used for contacting and pushing the cam.

[0030] Further, the driving part further comprises a spring sheet, the fan-shaped slot is provided with a limiting hole, and the spring sheet is embedded in the limiting hole; one side of the dial rod facing the fan-shaped slot is formed with a protrusion, and the protrusion can be embedded in the limiting hole and be pushed by the spring sheet to one side of the limiting hole.

[0031] Further, the slide rail locking mechanism comprises a guide plate, an unlocking support rod, a positioning pin, an unlocking pin and a support rod return spring; the guide plate is fixed to the lower rail and is provided with a guide groove extending along the moving direction of the upper rail, the inner wall of one side of the guide groove is recessed inward to form a plurality of clamping grooves, and the clamping grooves are sequentially distributed along the moving direction of the upper rail; the unlocking support rod is provided with a pin hole for embedding the positioning pin, one end of the unlocking support rod is fixedly connected with the third pull rope, the other end is fixedly connected with the unlocking pin, and the unlocking pin can be clamped into any one of the clamping grooves; the positioning pin is fixed to the cushion, one end of the support rod return spring is fixedly connected with the unlocking support rod, and the other end is fixedly connected with the positioning pin; wherein the rotation of the third winch can drive the third pull rope to drive the unlocking support rod to overcome the force of the support rod return spring, move the unlocking pin from the clamping groove to the guide groove, unlock the upper rail and the lower rail, so that the unlocking pin can move along the guide groove.

[0032] In some embodiments, the mounting body comprises a mounting body and a hinged seat, the hinged seat is connected to the mounting body, and the support leg is rotationally connected to the hinged seat.

[0033] The mounting body comprises a mounting seat and a connecting rod, the number of mounting seats is two, and the two mounting seats are arranged in parallel, and the lower rail is fixedly connected with the mounting seat one by one.

[0034] Among the two mounting seats, one of the mounting seats is a first mounting seat, and the other mounting seat is a second mounting seat, and the first mounting seat is used for being connected with the side plate of the vehicle body.

[0035] One end of the connecting rod is fixedly connected with the first mounting seat, and the other end is fixedly connected with the second mounting seat.

[0036] The hinged seat is fixed to the outer wall of the side of the second mounting seat facing the first mounting seat, or is fixed to the outer wall of the side of the second mounting seat away from the lower rail.

[0037] Compared with the prior art, the seat provided by the embodiment of the application has the beneficial effects that by fixing the upper rail and the lower rail on the support assembly and the cushion respectively, the slide rail assembly can be arranged below the cushion instead of being arranged on the floor of the vehicle body on the basis that the cushion can move along the lower slide rail, so that the slide rail assembly can be prevented from being stepped on by passengers, the service life of the slide rail assembly is prolonged, and the obstacle under the feet of the passengers is reduced, so that the passengers can have more comfortable feet. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a structural diagram of the seat provided by the embodiment of the application.

[0039] Figure 2 is a state diagram of a seat mounted on a vehicle body according to an embodiment of the present application;

[0040] Figure 3 is a right view of a seat according to an embodiment of the present application;

[0041] Figure 4 is a first schematic diagram of a mounting member connected to a base according to an embodiment of the present application;

[0042] Figure 5 is a second schematic diagram of a mounting member connected to a base according to an embodiment of the present application;

[0043] Figure 6 is a state diagram of a seat according to an embodiment of the present application;

[0044] Figure 7 is a first state diagram of a seat turned toward a side panel of a vehicle body according to an embodiment of the present application;

[0045] Figure 8 is a second state diagram of a seat turned toward a side panel of a vehicle body according to an embodiment of the present application;

[0046] Figure 9 is a first state diagram of a lock driving mechanism according to an embodiment of the present application;

[0047] Figure 10 is a second state diagram of a lock driving mechanism according to an embodiment of the present application;

[0048] Figure 11 is a connection diagram of a vehicle body floor and a side panel of a vehicle body according to an embodiment of the present application;

[0049] Figure 12 is a partial structure diagram of a seat according to an embodiment of the present application;

[0050] Figure 13 is a partial structure diagram of a seat according to an embodiment of the present application; Figure 12 is an enlarged diagram of A of

[0051] Figure 14 is a structure diagram of a driving member according to an embodiment of the present application;

[0052] Figure 15 is an exploded diagram of a driving member according to an embodiment of the present application;

[0053] Figure 16 is a structure diagram of a driven member according to an embodiment of the present application;

[0054] Figure 17 is a first state diagram of a seat turned toward a seat cushion according to an embodiment of the present application;

[0055] Figure 18 is the second state diagram provided by the embodiment of the application, in which the backrest is turned to the cushion direction;

[0056] Figure 19 is the exploded view of the slide rail locking mechanism provided by the embodiment of the application;

[0057] Figure 20 is the first state diagram of the slide rail locking mechanism provided by the embodiment of the application;

[0058] Figure 21 is the second state diagram of the slide rail locking mechanism provided by the embodiment of the application

[0059] In the figure, 1, seat body; 11, cushion; 12, backrest; 121, third rotating shaft;

[0060] 2, support assembly; 21, mounting piece; 22, support leg; 211, mounting seat; 212, connecting rod; 213, hinged seat; 210, mounting groove; 221, first rotating shaft;

[0061] 3, slide rail assembly; 31, upper rail; 32, lower rail;

[0062] 4, vehicle body floor; 41, limiting groove;

[0063] 5, vehicle body side plate; 51, fixing seat; 52, containing hole; 511, fixing groove; 512, rope passing hole; 513, hinged piece;

[0064] 71, first winch; 72, first pull rope; 73, fixing piece; 74, guide cylinder;

[0065] 81, lock head; 82, lock catch; 83, unlocking piece;

[0066] 91, second winch; 92, second pull rope;

[0067] 10, seat side folding mechanism; 101, base; 102, second rotating shaft;

[0068] 30, unlocking driving mechanism; 301, driving piece; 302, driven piece; 3011, dial; 3012, dial lever; 3013, fan-shaped groove; 3014, pin shaft; 3015, limiting hole; 3016, spring piece; 3017, protrusion; 3021, second winch; 3022, cam;

[0069] 200, T-handle.

[0070] 401, guide plate; 402, unlocking support lever; 403, positioning pin; 404, unlocking pin; 4011, guide groove; 4012, clamping groove; 4021, pin hole. DETAILED DESCRIPTION

[0071] The specific embodiments of the present application will be further described in details with reference to the drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0072] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0073] The terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0074] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. 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.

[0075] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0076] As Figures 1-3 shown, a preferred seat of an embodiment of the present application includes a seat body 1, a support assembly 2 and a slide rail assembly 3.

[0077] The seat body 1 comprises a seat cushion 11 and a backrest 12, the backrest 12 is rotationally connected to the seat cushion 11; the slide rail assembly 3 comprises an upper rail 31 and a lower rail 32, the upper rail 31 is fixed to one side of the seat cushion 11 facing the support assembly 2, the lower rail 32 is fixed to one side of the support assembly 2 facing the seat cushion 11, and the upper rail 31 is correspondingly matched with the lower rail 32 and can move along the lower rail 32.

[0078] Based on the technical scheme, on the basis that the seat cushion 11 can move along the lower rail 32 through the upper rail 31, the slide rail assembly 3 is arranged below the seat cushion instead of being arranged on the floor of the vehicle body, so that the slide rail assembly 3 can be prevented from being stepped on by passengers, the service life of the slide rail assembly 3 is prolonged, and the obstacle under the feet of passengers can be reduced, so that the passengers can have a more comfortable foot space.

[0079] The seat cushion 11 comprises a seat cushion frame and a seat cushion pad, and the seat cushion pad is installed on the seat cushion frame and used for providing a seat for passengers.

[0080] The backrest 12 comprises a backrest frame and a backrest pad, and the backrest pad is installed on the backrest frame and used for providing a backrest for passengers.

[0081] The backrest 12 is fixedly connected with a third rotating shaft 121, and the backrest 12 is rotationally connected to the seat cushion 11 through the third rotating shaft 121.

[0082] Referring to Figures 4-5 The support assembly 2 comprises a mounting piece 21 and a support leg 22, the mounting piece 21 is rotationally connected to the support leg 22, and the lower rail 32 is fixed to the mounting piece 21.

[0083] The mounting piece 21 has a mounting groove 210, the seat cushion 11 and the mounting groove 210 can form a shielding space, and the slide rail assembly 3 is arranged in the shielding space. Arranging the slide rail assembly 3 in the shielding space can avoid the exposure of the slide rail assembly 3, so that dust accumulation of the slide rail assembly 3 can be avoided and the appearance of the seat can be improved.

[0084] In the embodiment, two mounting grooves 210 are arranged, the two mounting grooves 210 are parallel to each other, the lower rail 32 is correspondingly arranged in the mounting grooves 210, and the upper rail 31 and the lower rail 32 are correspondingly and slidingly matched.

[0085] The support leg 22 is fixedly connected with a first rotating shaft 221, and the support leg 22 is rotationally connected to the mounting piece 21 through the first rotating shaft 221.

[0086] Specifically, the mounting piece 21 comprises a mounting body and a hinged seat 213, the hinged seat 213 is connected to the mounting body, and the support leg 22 is rotationally connected to the hinged seat 213.

[0087] Specifically, the mounting body comprises mounting seats 211 and a connecting rod 212, the number of the mounting seats 211 is two, and the two mounting seats 211 are arranged in parallel, and the lower rail 32 is in one-to-one correspondence with and fixedly connected with the mounting seats 211; among the two mounting seats 211, one mounting seat 211 is a first mounting seat 211, and the other mounting seat 211 is a second mounting seat 211, the first mounting seat 211 is used for being connected with the vehicle body side plate 5; one end of the connecting rod 212 is fixedly connected with the first mounting seat 211, and the other end is fixedly connected with the second mounting seat 211; the hinge seat 213 is fixed to the outer wall of the side of the second mounting seat 211 facing the first mounting seat 211.

[0088] In the embodiment, the number of the hinge seats 213 is two, and the support legs 22 are in one-to-one correspondence with and hingedly connected with the hinge seats 213.

[0089] In the embodiment, the number of the first rotating shafts 221 is one, and the two support legs 22 are fixedly connected to the two ends of the first rotating shaft 221.

[0090] In the embodiment, the mounting seat 211 is provided with a mounting groove 210.

[0091] Referring to Figures 1-5 , the seat provided by the embodiment of the present application further comprises a side hanging device, the side hanging device comprises a seat side folding mechanism 10, one end of the seat side folding mechanism 10 is connected with the mounting piece 21, and the other end is connected with the vehicle body side plate 5, and the seat side folding mechanism 10 can fold the seat to the vehicle body side plate 5.

[0092] Specifically, the seat side folding mechanism 10 comprises a base 101 and a second rotating shaft 102, one end of the base 101 is fixedly connected with the mounting piece 21, and the other end is rotatably connected with the vehicle body side plate 5 through the second rotating shaft 102.

[0093] Referring to Figure 2 , Figures 5-8 , the side hanging device provided by the embodiment of the present application further comprises a support leg folding mechanism, the support leg folding mechanism is connected with the support leg 22 and the vehicle body side plate 5 respectively; when the seat side folding mechanism 10 folds the seat to the vehicle body side plate 5, the support leg folding mechanism can drive the support leg 22 to fold the support leg 22 to the cushion 11.

[0094] Specifically, the support leg folding mechanism comprises a first winch 71 coaxially connected with the first rotating shaft 221, a first pull rope 72 and a fixing member 73, the fixing member 73 is fixed on the side plate 5 of the vehicle body, one end of the first pull rope 72 is fixedly connected with the first winch 71 and the other end is fixedly connected with the fixing member 73; wherein, when the seat lateral folding mechanism 10 folds the seat towards the side plate 5 of the vehicle body, the first pull rope 72 can pull the first winch 71 to rotate, so as to drive the first rotating shaft 221 to fold the support leg 22 towards the cushion 11.

[0095] The support leg folding mechanism further comprises a guide cylinder 74 fixed on the seat lateral folding mechanism 10, the guide cylinder 74 is provided with a guide hole through which the first pull rope 72 passes.

[0096] In combination Figures 6-8 It is understood that the folding of the support leg 22: when the base 101 folds the seat towards the side plate 5 of the vehicle body, the length of the a section does not change, the length of the b section becomes longer, the first pull rope 72 is stretched and pulls the first winch 71 to rotate, the first winch 71 drives the first rotating shaft 221 to rotate coaxially, and the first rotating shaft 221 drives the support leg 22 to fold with the cushion 11.

[0097] The unfolding of the support leg 22: when the base 101 is flipped away from the side plate 5 of the vehicle body to unfold the seat, the first pull rope 72 is relaxed, the end of the support leg 22 away from the hinge seat 213 moves downward under the action of gravity and is separated from the cushion 11, the support leg 22 drives the first rotating shaft 221 to rotate, and the first rotating shaft 221 drives the first winch 71 to wind the first pull rope 72.

[0098] In some embodiments, the support leg folding mechanism further comprises a support leg reset spring, one end of the support leg reset spring is fixedly connected with the support leg 22 and the other end is fixedly connected with the cushion 11. The support leg reset spring plays a role of supporting and stabilizing the support leg 22 between the cushion 11 and the support leg 22.

[0099] In the embodiment, the support leg reset spring is a support leg reset torsional spring.

[0100] In combination Figures 6-8 It is understood that the folding of the support leg 22: when the base 101 folds the seat towards the side plate 5 of the vehicle body, the first pull rope 72 can pull the first winch 71 to rotate, the first winch 71 can drive the first rotating shaft 221 to rotate coaxially, and the first rotating shaft 221 can drive the support leg 22 to fold with the cushion 11 against the force of the support leg reset spring.

[0101] The unfolding of the support leg 22: when the base 101 is flipped away from the side panel 5 of the vehicle body to unfold the seat, the first pull rope 72 is loosened, the support leg 22 moves downward away from the end of the articulated seat 213 under the action of gravity and the force of the support leg return spring and is separated from the seat cushion 11, the first rotating shaft 221 is driven to rotate by the support leg 22, and the first winch 71 is driven to wind the first pull rope 72.

[0102] When the articulated seat 213 is fixed to the outer wall of the side wall of the first mounting seat on the side of the second mounting seat, the side wall of the first mounting seat can block the outward swinging of the support leg 22, so that the articulated seat 213 can cooperate with the support leg return spring to stably open the support leg 22 relative to the seat cushion 11.

[0103] Referring to Figure 2 , Figures 6-11 The side-hanging device provided by the embodiment of the present application further comprises a seat lateral locking mechanism connected to the seat body 1 and the side panel 5 of the vehicle body, respectively.

[0104] Specifically, the seat lateral locking mechanism comprises a lock head 81 and a lock catch 82 corresponding to the lock head 81, the lock head 81 is connected to the side of the backrest 12 away from the seat cushion 11, and the lock catch 82 is connected to the side panel 5 of the vehicle body.

[0105] Further, the side-hanging device further comprises a lock catch driving mechanism connected to the seat lateral folding mechanism 10 and the lock catch 82, respectively; when the seat lateral folding mechanism 10 folds the seat toward the side panel 5 of the vehicle body, the lock catch driving mechanism can drive the lock catch 82 to be buckled with the lock head 81.

[0106] The seat locking assembly further comprises an unlocking piece 83 fixed to the outer wall of the side panel 5 away from the seat body 1, which can convert the lock catch 82 and the lock head 81 from the locked state to the unlocked state.

[0107] The lock head 81 and the lock catch 82 can stably hang the seat body 1 on the side panel 5. The lock head, the lock catch and the unlocking piece are all commercially available, and the specific structure of the lock head, the lock catch and the unlocking piece will not be described here.

[0108] The side panel 5 of the vehicle body is fixedly provided with a fixed seat 51, and the lock catch 82 is connected to the side panel 5 of the vehicle body through the fixed seat 51; the lock catch 82 has a first end and a second end, and the first end is rotatably connected to the fixed seat 51; wherein the lock catch driving mechanism can drive the lock catch 82 to rotate around the rotation axis of the first end, so that the second end can be buckled with the lock catch 82.

[0109] The lock catch driving mechanism comprises a second winch 91, a second pull rope 92 and a lock catch reset spring, the second winch 91 is coaxially connected with the second rotating shaft 102, one end of the second pull rope 92 is fixedly connected with the second winch 91, the other end is fixedly connected with the lock catch 82, one end of the lock catch reset spring is fixedly connected with the fixed seat 51, the other end is fixedly connected with the lock catch 82; wherein, when the seat lateral folding mechanism 10 folds the seat towards the vehicle body side plate 5, the second winch 91 can pull the second pull rope 92 to drive the lock catch 82 to rotate around the rotating axis of the first end against the force of the lock catch reset spring, so that the second end can be buckled with the lock head 81.

[0110] In the embodiment, the lock catch reset spring is a lock catch reset torsional spring.

[0111] The fixed seat 51 is provided with a fixed groove 511, the fixed groove 511 is fixedly provided with a hinge 513, the first end is rotatably connected with the fixed groove 511 through the hinge 513; one end of the lock catch reset spring is fixedly connected with the inner wall of the fixed groove 511, the other end is fixedly connected with the lock catch 82; wherein, the lock catch driving mechanism can drive the lock catch 82 to rotate around the rotating axis of the first end against the force of the lock catch reset spring, so that the second end can extend out of the fixed groove 511 and be buckled with the lock head 81.

[0112] The side wall of the fixed groove 511 is provided with a rope passing hole 512 for the second pull rope 92 to pass through.

[0113] The lock catch driving mechanism, the fixed seat 51 and the fixed groove 511 can form a hidden pop-up lock catch structure with the lock catch 82; when the seat needs to change from the folded state to the unfolded state, the second end of the lock catch 82 can gradually hide in the fixed groove 511, realizing the hiding of the lock catch 82 and improving the appearance of the automobile; when the seat needs to change from the unfolded state to the folded state, the lock catch 82 can gradually extend out of the fixed groove 511, realizing the pop-up of the lock catch 82 and making the lock catch 82 buckled with the lock head 81.

[0114] The support leg folding mechanism, the seat lateral locking mechanism and the lock catch driving mechanism are adopted, when the base 101 folds the seat towards the vehicle body side plate 5, the folding of the support leg 22 and the locking of the seat body 1 can be simultaneously completed, the operation steps are less and the use experience is good.

[0115] In combination Figures 7-10 It is understood that the pop-up of the lock catch 82: when the base 101 folds the seat towards the vehicle body side plate 5, the second rotating shaft 102 can drive the second winch 91 to rotate, the second winch 91 can wind and tighten the second pull rope 92, the second pull rope 92 can pull the lock catch 82 to rotate around the rotating axis of the first end against the force of the lock catch reset spring, so that the second end of the lock catch 82 can extend out of the fixed groove 931.

[0116] The lock 82 is accommodated: when the base 101 is turned away from the side plate 5 of the vehicle body to unfold the seat, the second rotating shaft 102 can drive the second winch 91 to rotate, the second winch 91 can pay out the second pull rope 92, and under the action of the force of the lock reset spring, the lock 82 rotates around the rotating shaft of the first end, so that the second end can return to the original position.

[0117] Referring to Figure 2 and Figure 11 , the seat provided by the embodiment of the present application is mounted on the bottom plate 4 and the side plate 5 of the vehicle body.

[0118] The bottom plate 4 of the vehicle body has a limiting groove 41 for inserting the support leg 22, and the limiting groove 41 can limit the support leg 22, avoid the support leg 22 from shaking when supporting the mounting part 21, and improve the safety and stability of the seat.

[0119] The side plate 5 of the vehicle body is provided with a containing hole 52, and the fixing seat 51 is fixed in the containing hole 52. The fixing seat 51 is arranged in the containing hole 52. The containing hole 52 can hide the fixing seat 51 in the side plate 5 of the vehicle body, which can improve the appearance of the vehicle and avoid the passenger from colliding with the fixing seat 51, thereby protecting the safety of the passenger.

[0120] The seat further comprises a handle 200 fixed to one end of the seat body 1 away from the side plate 5 of the vehicle body. The handle 200 is convenient for the passenger to hang the seat body 1 on the side plate 5 of the vehicle body.

[0121] Referring to Figure 1 , Figure 12 and Figure 13 , the seat provided by the embodiment of the present application further comprises a slide rail unlocking device, the slide rail unlocking device comprises an unlocking driving mechanism 30 and a slide rail locking mechanism, the unlocking driving mechanism 30 is connected with the seat cushion 11 and the backrest 12 respectively, the slide rail locking mechanism is connected with the unlocking driving mechanism 30 and the seat cushion 11 respectively, and the unlocking driving mechanism 30 can drive the slide rail locking mechanism to unlock the upper rail 31 and the lower rail 32, so that the upper rail 31 can move along the lower rail 32.

[0122] The slide rail unlocking device further comprises a seat cushion forward moving spring, one end of the seat cushion forward moving spring is fixedly connected with the mounting part 21, and the other end is fixedly connected with the upper rail 31; wherein when the slide rail locking mechanism unlocks the upper rail 31 and the lower rail 32, the spring force of the seat cushion forward moving spring can drive the upper rail 31 to move along the lower rail 32.

[0123] In the embodiment, two seat cushion forward moving springs are arranged, and the two seat cushion forward moving springs correspond to two mounting seats respectively.

[0124] Specifically, one end of the seat cushion forward moving spring is fixedly connected with the inner side wall of the mounting groove 210, and the other end is fixedly connected with one end of the upper rail 31 close to the backrest 12. When the slide rail locking mechanism unlocks the upper rail 31 and the lower rail 32, the upper rail 31 moves forward along the lower rail 32 under the action of the spring force of the seat cushion forward moving spring.

[0125] The unlocking driving mechanism 30 comprises a driving piece 301, a driven piece 302 and a third pull rope, the driving piece 301 is installed on the backrest 12, the driven piece 302 is rotationally connected to the seat cushion 11, one end of the third pull rope is fixedly connected with the driven piece 302, and the other end is fixedly connected with the slide rail locking mechanism; wherein the driving piece 301 can rotate with the backrest 12 and drive the driven piece 302 to pull the third pull rope, so as to drive the slide rail locking mechanism to unlock the upper rail 31 and the lower rail 32.

[0126] Referring to Figures 14-18 The driving piece 301 comprises a dial 3011 and a dial rod 3012, the dial 3011 is fixedly connected with the third rotating shaft 121 and can rotate with the third rotating shaft 121, and the dial rod 3012 is connected to the dial 3011.

[0127] The driven piece 302 comprises a third winch 3021, a cam 3022 and a winch reset spring, the third winch 3021 is fixedly connected with the third pull rope, the cam 3022 is fixed on one side of the third winch 3021 facing the dial 3011, one end of the winch reset spring is fixedly connected with the third winch 3021, and the other end is fixedly connected with the seat cushion 11; wherein when the driving piece 301 rotates with the backrest 12 to a preset angle, the dial rod 3012 can contact and dial the cam 3022, so that the third winch 3021 can rotate and pull the third pull rope, so as to drive the slide rail locking mechanism to unlock the upper rail 31 and the lower rail 32.

[0128] In the embodiment, the winch reset spring is a winch reset torsion spring.

[0129] The dial 3011 is provided with a fan-shaped groove 3013, and a pin shaft 3014 is fixedly arranged in the fan-shaped groove 3013.

[0130] The dial rod 3012 has a third end and a fourth end, the third end is rotationally connected to the fan-shaped groove 3013 through the pin shaft 3014, the fourth end extends out of the fan-shaped groove 3013, and the fourth end is used for contacting and dialing the cam 3022.

[0131] The driving member 301 further comprises a spring sheet 3016, the fan-shaped groove 3013 is provided with a limiting hole 3015, and the spring sheet 3016 is embedded in the limiting hole 3015; one side of the shifting rod 3012 facing the fan-shaped groove 3013 is provided with a protrusion 3017, the protrusion 3017 can be embedded in the limiting hole and is abutted on one side of the limiting hole 3015 by the spring sheet 3016. The fan-shaped groove 3013, the pin shaft 3014, the limiting hole 3015 and the spring sheet 3016 are adopted, when the unfolding process of the seat is performed, after the shifting rod 3012 passes the contact point with the cam 3022, the protrusion 3017 can be abutted to the original position by the spring force of the spring sheet 3016, so as to realize the resetting of the shifting rod 3012, thereby enabling the shifting rod 3012 to be repeatedly used.

[0132] The slide rail locking mechanism comprises a guide plate 401, an unlocking support rod 402, a positioning pin 403, an unlocking pin 404 and a support rod resetting spring; the guide plate 401 is fixed to the lower rail 32 and is provided with a guide groove 4011 extending along the moving direction of the upper rail 31, the inner wall of one side of the guide groove 4011 is inwardly recessed to form a plurality of clamping grooves 4012, and the plurality of clamping grooves 4012 are sequentially distributed along the moving direction of the upper rail 31; the unlocking support rod 402 is provided with a pin hole 4021 for embedding the positioning pin 403, one end of the unlocking support rod 402 is fixedly connected with the third pull rope, the other end is fixedly connected with the unlocking pin 404, and the unlocking pin 404 can be clamped into any one of the clamping grooves 4012; the positioning pin 403 is fixed to the cushion, one end of the support rod resetting spring is fixedly connected with the unlocking support rod 402, and the other end is fixedly connected with the positioning pin 403; wherein the rotation of the third winch 3021 can pull the third pull rope to drive the unlocking support rod 402 to move the unlocking pin 404 from the clamping groove 4012 to the guide groove 4011 against the force of the support rod resetting spring, unlock the upper rail 31 and the lower rail 32, and enable the unlocking pin 404 to move along the guide groove 4011.

[0133] In combination Figures 17-21It is understood that the folding backrest 12: the backrest 12 is turned to the direction of the cushion 11 around the third rotation shaft 121, the dial 3011 and the dial rod 3012 rotate with the backrest 12, the dial rod 3012 rotates to the preset angle and contacts and overcomes the force of the capstan reset spring to drive the cam 3022, the third capstan 3021 is wound, the third pull rope pulls the unlocking support rod 402 around the positioning pin 403, the unlocking pin 404 moves from the clamping groove 4012 to the guide groove 4011, the front moving spring drives the upper rail 31 to move forward along the lower rail 32, the cushion 11 drives the positioning pin 403 to move forward, and the positioning pin 403 drives the unlocking pin 404 to move forward along the guide groove 4011 through the unlocking support rod 402; the backrest 12 continues to turn, the dial rod 3012 passes the cam 3022, the third capstan 3021 is reset under the action of the capstan reset spring, the third capstan 3021 unwinds the third pull rope, and the unlocking support rod 402 moves the unlocking pin 404 from the guide groove 4011 to the clamping groove 4012 under the action of the support rod reset spring, so that the upper rail 31 is locked on the support assembly 2, the backrest locking mechanism is used to lock the backrest 12 on the cushion 11, and the folding of the backrest 12 is completed.

[0134] The unfolded backrest 12: the backrest locking mechanism is unlocked, the backrest 12 is turned away from the cushion 11 around the third rotation shaft 121, the dial 3011 and the dial rod 3012 rotate with the third rotation shaft 121, the dial rod 3012 passes the contact point of the cam 3022, and the spring sheet 3016 abuts the protrusion 3017 to one side of the limiting hole 3015, so that the reset of the dial rod 3012 is completed.

[0135] The cushion 11 is moved to a predetermined position: the unlocking support rod 402 is manually held to enable the unlocking support rod 402 to rotate around the positioning pin 403, the unlocking pin 404 moves from the clamping groove 4012 to the guide groove 4011, the unlocking of the upper rail 31 and the support assembly 2 is completed, the cushion 11 is manually moved to a predetermined position by overcoming the spring force of the seat moving spring, and the unlocking support rod 402 is manually released, the unlocking pin 404 moves from the guide groove 4011 to the clamping groove 4012 under the action of the support rod reset spring, and the upper rail 31 is locked on the support assembly 2.

[0136] In summary, the seat provided by the embodiment of the application has the following beneficial effects:

[0137] 1, the upper rail 31 and the lower rail 32 are fixed on the support assembly 2 and the cushion 11 respectively, so that the slide rail assembly 3 can be prevented from being stepped on by passengers, the service life of the slide rail assembly 3 is prolonged, and the obstacle under the feet of passengers is reduced, so that the passengers can have a more comfortable foot space.

[0138] 2, the support leg 22 is rotationally connected to the mounting piece 21, so that the support leg 22 can be folded.

[0139] 3、The use of the shielding space can avoid the exposure of the slide rail assembly 3, thereby avoiding the accumulation of dust on the slide rail assembly 3 and improving the aesthetics of the seat.

[0140] 4、The use of the hinged seat 213 allows the support leg 22 to be folded onto the cushion 11.

[0141] 5、The use of the seat lateral folding mechanism allows the seat body 1 to be folded onto the side panel 5 of the vehicle body.

[0142] 6、The use of the seat lateral locking mechanism allows the seat body 1 to be hung on the side panel 5 of the vehicle body.

[0143] 7、The use of the lock catch driving mechanism allows the lock catch 82 to be ejected and stored.

[0144] 8、The use of the lock catch driving mechanism, the fixed seat 51 and the fixed groove 511 allows the formation of a hidden ejection lock catch structure with the lock catch 82, thereby improving the aesthetics of the vehicle.

[0145] 9、The use of the seat lateral folding mechanism, the support leg folding mechanism, the seat lateral locking mechanism and the lock catch driving mechanism allows the folding of the support leg 22 and the locking of the seat body 1 to be completed simultaneously when the base 101 is folded onto the side panel 5 of the vehicle body around the second rotation shaft 102, thereby reducing the number of operation steps and improving the user experience.

[0146] 9、The use of the slide rail unlocking device including the unlocking driving mechanism 30, the slide rail locking mechanism and the cushion forward movement spring allows the automatic unlocking of the upper rail 31 and the automatic forward movement of the cushion 11 when the backrest 12 is folded onto the cushion 11, thereby reducing the number of operation steps and improving the user experience.

[0147] 10、The use of the slide rail unlocking device, the support leg folding mechanism, the seat lateral locking mechanism and the lock catch driving mechanism allows the seat to be hung on the side panel 5 of the vehicle body by only two actions of "folding the backrest 12" and "turning the seat upward", thereby reducing the number of operation steps and improving the user experience.

[0148] The above description is only the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and replacements without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A seat, characterized in that, The seat body comprises a seat cushion and a backrest, the backrest is rotationally connected to the seat cushion; The support assembly comprises a mounting member; The slide rail assembly comprises an upper rail and a lower rail, the upper rail is fixed to one side of the seat cushion facing the support assembly, the lower rail is fixed to one side of the support assembly facing the seat cushion, the upper rail is correspondingly matched with the lower rail and can move along the lower rail; The slide rail unlocking device comprises an unlocking driving mechanism and a slide rail locking mechanism, the unlocking driving mechanism is connected to the seat cushion and the backrest respectively, the slide rail locking mechanism is connected to the unlocking driving mechanism and the seat cushion respectively, and the unlocking driving mechanism can drive the slide rail locking mechanism to unlock the upper rail and the lower rail, so that the upper rail can move along the lower rail; The slide rail unlocking device further comprises a seat cushion forward moving spring, one end of the seat cushion forward moving spring is fixedly connected to the mounting member, and the other end is fixedly connected to the upper rail; when the slide rail locking mechanism unlocks the upper rail and the lower rail, the spring force of the seat cushion forward moving spring can drive the upper rail to move along the lower rail; The unlocking driving mechanism comprises a driving member, a driven member and a third pull rope, the driving member is installed on the backrest, the driven member is rotationally connected to the seat cushion, one end of the third pull rope is fixedly connected to the driven member, and the other end is fixedly connected to the slide rail locking mechanism; the driving member can rotate with the backrest, drive the driven member to pull the third pull rope, and drive the slide rail locking mechanism to unlock the upper rail and the lower rail. The support assembly further comprises a support leg, the mounting member is rotationally connected to the support leg, and the lower rail is fixed to the mounting member.

2. The seat of claim 1, wherein The mounting member has a mounting groove, the seat cushion and the mounting groove can form a shielding space, and the slide rail assembly is arranged in the shielding space.

3. The seat of claim 2, wherein, The side hanging device further comprises a seat side folding mechanism, one end of the seat side folding mechanism is connected to the mounting member, and the other end is connected to a side plate of a vehicle body; the seat side folding mechanism can fold the seat towards the side plate of the vehicle body.

4. The seat of claim 2, wherein The side hanging device further comprises a support leg folding mechanism, the support leg folding mechanism is connected to the support leg and the side plate of the vehicle body respectively; 5. The seat of claim 4, wherein, When the seat side folding mechanism folds the seat towards the side plate of the vehicle body, the support leg folding mechanism can drive the support leg to fold towards the seat cushion. The side hanging device further comprises a seat side locking mechanism, the seat side locking mechanism is connected to the seat body and the side plate of the vehicle body respectively.

6. The seat of claim 4, wherein, The seat side locking mechanism comprises a lock head and a lock catch correspondingly matched with the lock head, the lock head is connected to one side of the backrest away from the seat cushion, and the lock catch is connected to the side plate of the vehicle body.

7. The seat of claim 6, wherein The side hanging device further comprises a lock catch driving mechanism, the lock catch driving mechanism is connected to the seat side folding mechanism and the lock catch respectively.

8. The seat of claim 7, wherein, ​ When the seat side folding mechanism folds the seat towards the direction of the vehicle body side plate, the lock catch driving mechanism can drive the lock catch to be connected with the lock head buckle.

9. The seat of claim 5, wherein, The support leg is fixedly connected with a first rotating shaft, and the support leg is rotatably connected with the mounting member through the first rotating shaft.

10. The seat of claim 9, wherein, The support leg folding mechanism comprises a first winch, a first pull rope and a fixing member, the first winch is coaxially connected with the first rotating shaft, the fixing member is fixed on the vehicle body side plate, one end of the first pull rope is fixedly connected with the first winch, and the other end is fixedly connected with the fixing member. When the seat side folding mechanism folds the seat towards the direction of the vehicle body side plate, the first pull rope can pull the first winch to rotate, so as to drive the first rotating shaft to fold the support leg towards the direction of the seat cushion.

11. The seat of claim 10, wherein, The support leg folding mechanism further comprises a support leg reset spring, one end of the support leg reset spring is fixedly connected with the support leg, and the other end is fixedly connected with the seat cushion.

12. The seat of claim 8, wherein, The seat side folding mechanism comprises a base and a second rotating shaft, one end of the base is fixedly connected with the mounting member, and the other end is rotatably connected with the vehicle body side plate through the second rotating shaft.

13. The seat of claim 12, wherein, The vehicle body side plate is fixedly provided with a fixing seat, and the lock catch is connected with the vehicle body side plate through the fixing seat. The lock catch has a first end and a second end, and the first end is rotatably connected with the fixing seat. The lock catch driving mechanism can drive the lock catch to rotate around the rotation axis of the first end, so that the second end can be connected with the lock head buckle.

14. The seat of claim 13, wherein, The lock catch driving mechanism comprises a second winch, a second pull rope and a lock catch reset spring, the second winch is coaxially connected with the second rotating shaft, one end of the second pull rope is fixedly connected with the second winch, and the other end is fixedly connected with the lock catch, one end of the lock catch reset spring is fixedly connected with the fixing seat, and the other end is fixedly connected with the lock catch. When the seat side folding mechanism folds the seat towards the direction of the vehicle body side plate, the second winch can pull the second pull rope to drive the lock catch to rotate around the rotation axis of the first end against the force of the lock catch reset spring, so that the second end can be connected with the lock head buckle.

15. The seat of claim 14, wherein, The fixing seat is provided with a fixing groove, a hinge member is fixed in the fixing groove, the first end is rotatably connected with the fixing groove through the hinge member, one end of the lock catch reset spring is fixedly connected with the inner wall of the fixing groove, and the other end is fixedly connected with the lock catch. The lock catch driving mechanism can drive the lock catch to rotate around the rotation axis of the first end against the force of the lock catch reset spring, so that the second end can be connected with the lock head buckle.

16. The seat of claim 1, wherein, The backrest is fixedly connected with a third rotating shaft, and the backrest is rotatably connected with the seat cushion through the third rotating shaft.

17. The seat of claim 16, wherein, The driving member comprises a dial and a lever, the dial is coaxially connected with the third rotating shaft, and the lever is connected with the dial. The follower comprises a third winch, a cam and a winch return spring; the third winch is fixedly connected with the third pull rope, the cam is fixed on one side of the third winch facing the dial, one end of the winch return spring is fixedly connected with the third winch and the other end is fixedly connected with the seat cushion; When the driving part rotates to a preset angle along with the backrest, the dial rod can contact and push the cam, so that the third winch can rotate and pull the third pull rope, to drive the slide rail locking mechanism to unlock the upper rail and the lower rail.

18. The seat of claim 17, wherein, The dial is provided with a fan-shaped slot, and a pin shaft is fixed in the fan-shaped slot; The dial rod has a third end and a fourth end, the third end is rotatably connected in the fan-shaped slot through the pin shaft, and the fourth end extends out of the fan-shaped slot and is used for contacting and pushing the cam.

19. The seat of claim 18, wherein, The driving part further comprises a spring sheet, the fan-shaped slot is provided with a limiting hole, and the spring sheet is embedded in the limiting hole; One side of the dial rod facing the fan-shaped slot is formed with a protrusion, the protrusion can be embedded in the limiting hole and is pushed by the spring sheet to one side of the limiting hole.

20. The seat of claim 19, wherein, The slide rail locking mechanism comprises a guide plate, an unlocking support rod, a positioning pin, an unlocking pin and a support rod return spring; The guide plate is fixed on the lower rail and is provided with a guide slot extending along the moving direction of the upper rail, and a plurality of clamping grooves are formed in the inner wall of one side of the guide slot by being recessed inwardly, and the clamping grooves are distributed in sequence along the moving direction of the upper rail; The unlocking support rod is provided with a pin hole for embedding the positioning pin, one end of the unlocking support rod is fixedly connected with the third pull rope and the other end is fixedly connected with the unlocking pin, and the unlocking pin can be clamped into any one of the clamping grooves; The positioning pin is fixed on the seat cushion, one end of the support rod return spring is fixedly connected with the unlocking support rod and the other end is fixedly connected with the positioning pin; The rotation of the third winch can pull the third pull rope, to drive the unlocking support rod to overcome the force of the support rod return spring, move the unlocking pin from the clamping groove to the guide slot, unlock the upper rail and the lower rail, so that the unlocking pin can move along the guide slot.

21. The seat according to any one of claims 2-20, wherein The mounting member comprises a mounting body and a hinged seat, the hinged seat is connected to the mounting body, and the supporting leg is rotatably connected to the hinged seat; The mounting body comprises a mounting seat and a connecting rod, the number of the mounting seat is two, and the two mounting seats are arranged in parallel, and the lower rail is fixedly connected with the mounting seat in one-to-one correspondence; Among the two mounting seats, one is a first mounting seat and the other is a second mounting seat, and the first mounting seat is used for being connected with the side plate of the vehicle body; One end of the connecting rod is fixedly connected with the first mounting seat and the other end is fixedly connected with the second mounting seat; The hinge seat is fixed on the side outer wall of the second mounting seat facing the first mounting seat or the side outer wall of the second mounting seat away from the lower rail.

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