Seat sliding assembly

Abstract

The utility model provides a seat sliding assembly. The two ends of the lead screw are fixed in the lower sliding rail through the first fixing block and the second fixing block, the first gear box is in threaded fit with the lead screw, a movable supporting piece is arranged between the second fixing block and the first sliding rail, and the first sliding rail used for installing a first seat is arranged in the first gear box and is in sliding fit with the lower sliding rail. A movable supporting piece is arranged between the second fixing block and the first sliding rail, the movable supporting piece is movably arranged in the lower sliding rail, and a through hole allowing the lead screw to penetrate through is formed in the movable supporting piece. When the first seat moves to one end of the lead screw, the movable supporting piece can be driven to move, the lead screw can be supported in the moving process, shaking or abnormal sound of the lead screw in the moving process of the first seat is avoided, and deformation of the lead screw in the using process can also be avoided.

Description

Technical Field

[0001] The utility model relates to the field of vehicle manufacturing, in particular to a seat sliding component. Background Art

[0002] The seat slides are mainly used to connect the seat pan and the vehicle floor to achieve forward and backward adjustment of the seat. The electric slides generally include a drive mechanism, an upper slide, a lower slide, a gear box and a screw; the screw is assembled on the lower slide and fixed to the vehicle floor together with the lower slide; the gear box is assembled on the inner slide and connected to the seat; the gear box and the screw are threaded together, and the drive mechanism drives the gear box to drive the inner slide to move forward and backward along the screw to achieve forward and backward movement of the seat.

[0003] With the demand for interactive functions in smart cockpits, in order to maximize the cockpit space, seats generally use a long screw rod. When the seat moves to one end of the screw rod, the vehicle cabin space can be maximized.

[0004] However, since there is no support in the middle of the lead screw, it is easy to shake or make abnormal noise during the seat adjustment process, and the lead screw will deform over time, which will hinder the seat adjustment and seriously affect the user experience. Utility Model Content

[0005] In view of this, an embodiment of the utility model provides a seat sliding assembly to solve the problem of shaking or abnormal adjustment noise caused by the use of a long screw rod in the seat of the existing vehicle, and the problem of deformation of the long screw rod with increasing use time.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A seat sliding assembly comprises: a screw rod, a lower sliding rail, a first sliding rail, a moving support, a first gear box, a first fixing block and a second fixing block;

[0008] The two ends of the screw rod are fixed in the slide groove of the lower slide rail through a first fixing block and a second fixing block;

[0009] The first gear box is matched with the screw thread;

[0010] The first slide rail is arranged on the first gear box and is slidably matched with the lower slide rail, and the first slide rail is used to install the first seat;

[0011] A movable support is provided between the second fixed block and the first slide rail. The movable support can be movably arranged in the lower slide rail. The movable support is provided with a through hole for the screw rod to pass through.

[0012] Preferably, the lower sliding rail comprises: a horizontal portion, a first vertical portion and a second vertical portion;

[0013] The lower end of the first vertical portion and the lower end of the second vertical portion are respectively connected to two sides of the horizontal portion;

[0014] The upper end of the first vertical portion and the upper end of the second vertical portion are both bent inward to form a limiting member.

[0015] Preferably, the mobile support comprises: a slider and a plurality of rollers;

[0016] The slider is provided with a through hole;

[0017] Rollers are arranged on both sides of the slider.

[0018] Preferably, a first protrusion that contacts the limiting member of the first vertical portion and the limiting member of the second vertical portion is provided on the top of the sliding block.

[0019] Preferably, the first protrusion is a hollow structure.

[0020] Preferably, second protrusions contacting the side walls of the first vertical portion and the side walls of the second vertical portion are provided on both sides of the sliding block.

[0021] Preferably, the second protrusion is an arc structure.

[0022] Preferably, it further comprises: a protective member sleeved on the screw rod;

[0023] One end of the protective member is connected to the first gear box or the second gear box, and the other end is connected to one end of the sliding block.

[0024] Preferably, the protective member is a bellows.

[0025] Preferably, it also includes: a flange;

[0026] The slider is provided with a matching hole for the bellows to extend into, and the matching hole is coaxial with the through hole;

[0027] The flange is arranged at the end of the bellows;

[0028] The flange is fixed to the end of the slider by screws.

[0029] Preferably, a movable support is also provided between the second fixed block and the first slide rail.

[0030] Preferably, it further comprises: a second slide rail and a second gear box;

[0031] The second gear box is arranged between the first gear box and the second fixed block and is matched with the thread of the screw rod;

[0032] The second slide rail is arranged on the second gear box and is slidably matched with the lower slide rail, and the second slide rail is used for installing the second seat;

[0033] The movable support member is located between the first slide rail and the second slide rail.

[0034] Preferably, a movable support is provided between the first slide rail and the first fixed block, and between the second slide rail and the second fixed block.

[0035] Based on the seat sliding assembly provided by the utility model, the two ends of the screw rod are fixed in the lower slide rail through the first fixed block and the second fixed block, and the first gear box is threadedly matched with the screw rod, and a movable support is provided between the second fixed block and the first slide rail, and the first slide rail for installing the first seat is provided in the first gear box, and slidingly matched with the lower slide rail, and a movable support is provided between the second fixed block and the first slide rail, and the movable support can be movably provided in the lower slide rail, and the movable support has a through hole for the screw rod to pass through. Through the seat sliding assembly disclosed above, since the movable support is provided between the first slide rail and the second fixed block for installing the seat, and since the movable support has a through hole for the screw rod to pass through, when the first seat moves to one end of the screw rod, it can drive the movable support to move, and can support the screw rod during the movement, so as to prevent the screw rod from shaking or making abnormal noise during the movement of the first seat, and also prevent the screw rod from deforming during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0037] Figure 1 A structural schematic diagram of a seat sliding assembly provided by an embodiment of the utility model;

[0038] Figure 2 A cross-sectional view of a seat sliding assembly provided by an embodiment of the utility model;

[0039] Figure 3 A schematic diagram of the structure of the first slide rail, the second slide rail, the movable support, the first gear box and the second gear box after being assembled according to an embodiment of the utility model;

[0040] Figure 4 A cross-sectional view of a seat sliding assembly provided by an embodiment of the utility model;

[0041] Figure 5 A schematic structural diagram of a movable support member provided in an embodiment of the utility model.

[0042] Among them, there are a screw rod 1, a lower slide rail 2, a first slide rail 3, a second slide rail 4, a movable support 5, a slider 51, a roller 52, a first protrusion 53, a second protrusion 54, a first gear box 6, a second gear box 7, a first fixed block 8, a second fixed block 9, and a protective member 10. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] The utility model embodiment provides a seat sliding assembly, see Figures 1 to 5 , Figure 1 The structural diagram of the seat sliding assembly includes: a screw rod 1, a lower sliding rail 2, a first sliding rail 3, a movable support 5, a first gear box 6, a first fixed block 8 and a second fixed block 9;

[0045] Both ends of the screw rod 1 are fixed in the lower rail 2 through a first fixing block 8 and a second fixing block 9;

[0046] The first gear box 6 is threadedly matched with the screw rod 1;

[0047] The first slide rail 3 is disposed on the first gear box 6 and is slidably matched with the lower slide rail 2. The first slide rail 3 is used to install the first seat;

[0048] A movable support member 5 is provided between the second fixed block 9 and the first slide rail 3 . The movable support member 5 can be movably disposed in the lower slide rail 2 . The movable support member 5 is provided with a through hole for the screw rod 1 to pass through.

[0049] It should be noted that the first gear box 6 is threadedly matched with the screw rod 1. When the first gear box 6 is working, it can move along the axial direction of the screw rod 1. Therefore, the first slide rail 3 is set in the first gear box 6. During the axial movement of the first gear box 6 along the screw rod 1, it can directly drive the first slide rail 3 to move along the lower slide rail 2.

[0050] In the embodiment of the utility model, the two ends of the screw rod 1 are fixed in the lower rail 2 through the first fixing block 8 and the second fixing block 9, and the first gear box 6 is threadedly matched with the screw rod 1, and a movable support 5 is provided between the second fixing block 9 and the first rail 3, and the first rail 3 for installing the first seat is arranged in the first gear box 6, and is slidably matched with the lower rail 2, and a movable support 5 is provided between the second fixing block 9 and the first rail 3, and the movable support 5 can be movably arranged in the lower rail 2, and the movable support 5 is provided with a through hole for the screw rod 1 to pass through. Through the above-disclosed seat sliding assembly, since the movable support 5 is provided between the first rail 3 for installing the seat and the second fixing block 9, and since the movable support 5 is provided with a through hole for the screw rod 1 to pass through, when the first seat moves to one end of the screw rod 1, it can drive the movable support 5 to move, and can support the screw rod 1 during the movement process, so as to prevent the screw rod 1 from shaking or making abnormal noise during the movement of the first seat, and also prevent the screw rod 1 from being deformed during use.

[0051] Specifically, the lower sliding rail 2 includes: a horizontal portion, a first vertical portion and a second vertical portion;

[0052] The lower end of the first vertical portion and the lower end of the second vertical portion are respectively connected to two sides of the horizontal portion;

[0053] The upper end of the first vertical portion and the upper end of the second vertical portion are both bent inward to form a limiting member.

[0054] It should be noted that the lower end of the first vertical portion and the lower end of the second vertical portion are respectively connected to the two sides of the horizontal portion, and the upper end of the first vertical portion and the upper end of the second vertical portion are bent inward to form a limiter, which can effectively prevent external debris from entering the slide groove and affecting the movement of the first gear box 6.

[0055] Specifically, the mobile support member 5 includes: a slider 51 and a plurality of rollers 52;

[0056] The slider 51 is provided with a through hole;

[0057] Rollers 52 are disposed on both sides of the slider 51 .

[0058] It should be noted that by arranging rollers 52 on both sides of the slider 51, the lower end of the slider 51 can be effectively prevented from directly contacting the lower slide rail 2 during the movement of the slider 51, and the friction force during the movement of the slider 51 can be reduced, making the slider 51 move more smoothly.

[0059] It is worth noting that the roller 52 of the present application can be replaced by a steel ball, a roller or other element to realize the movement of the movable support member 5 .

[0060] Specifically, a first protruding member 53 that contacts the limiting member of the first vertical portion and the limiting member of the second vertical portion is disposed on the top of the sliding block 51 .

[0061] It should be noted that by providing a first protrusion 53 on the top of the slider 51 that contacts the limiting member of the first vertical portion and the limiting member of the second vertical portion, the slider 51 can always maintain contact with the limiting member of the first vertical portion and the limiting member of the second vertical portion during movement, thereby effectively avoiding the problem of the slider 51 shaking up and down during sliding.

[0062] It should also be noted that the slider 51 and the first protrusion 53 can be a separate structure or an integrated structure, and those skilled in the art can make a choice according to needs.

[0063] Preferably, the first protrusion 53 is an arc-shaped structure, so that the contact between the first protrusion 53 and the limiting member of the first vertical part and the limiting member of the second vertical part is point contact, so that during the movement of the slider 51, the friction resistance between the first protrusion 53 and the limiting member of the first vertical part and the limiting member of the second vertical part can be effectively reduced.

[0064] Preferably, the first protruding member 5 is a roller or a ball.

[0065] It should be noted that the first protrusion 5 is configured as a roller or a ball, which can effectively reduce the friction with the limiting member of the first vertical portion and the limiting member of the second vertical portion during the movement of the slider 51 , and effectively improve the service life of the movable support member 5 .

[0066] Specifically, the first protrusion 53 is a hollow structure.

[0067] It should be noted that due to the inevitable errors in the processing of the lower rail 2, in order to ensure that the top of the slider 51 always maintains contact with the limiting members of the first vertical part and the limiting members of the second vertical part during the movement of the slider 51, the first protrusion 53 is set to a hollow structure so that the first protrusion 53 has a certain elastic deformation, so that the slider 51 can slide smoothly in the lower rail 2.

[0068] Preferably, the slider 51 is made of plastic.

[0069] Furthermore, second protrusions 54 are provided on both sides of the sliding block 51 to contact the side walls of the first vertical portion and the side walls of the second vertical portion.

[0070] It should be noted that by providing second protrusions 54 on both sides of the slider 51 that contact the side walls of the first vertical portion and the side walls of the second vertical portion, the slider 51 can always maintain contact with the side walls of the first vertical portion and the side walls of the second vertical portion during movement, thereby effectively avoiding the problem of the slider 51 shaking left and right during sliding.

[0071] Specifically, the second protrusion 54 is an arc structure.

[0072] It should be noted that setting the second protrusion 54 as an arc structure can not only avoid the problem of left and right shaking of the slider 51 during sliding, but also effectively reduce the friction resistance between the support member and the first monorail and the second monorail during movement.

[0073] Furthermore, the seat sliding assembly further includes: a protective member 10 sleeved on the screw rod 1;

[0074] One end of the protection member 10 is connected to the first gear box 6 , and the other end is connected to one end of the slider 51 .

[0075] It should be noted that by sleeve-arranging the protective member 10 on the screw rod 1 , external dust can be effectively prevented from falling on the screw rod 1 , ensuring that the first gear box 6 can move smoothly along the screw rod 1 , and the service life of the screw rod 1 can be guaranteed.

[0076] It is worth noting that protective members 10 are provided at both ends of the slider 51 , and protective members 10 are provided between the first slide rail 3 and the second fixing block 9 , so as to provide comprehensive protection for the screw rod 1 .

[0077] Specifically, the protective member 10 is a bellows.

[0078] It should be noted that the protective member 10 may be a bellows, or other retractable or elastic protective device that can protect the screw rod 1 , and those skilled in the art may select the protective device according to their needs.

[0079] Preferably, the bellows is made of soft rubber material.

[0080] It should be noted that the bellows is made of soft rubber material, which makes the bellows have high elasticity and can effectively reduce abnormal noise caused by friction between the bellows and other components during the movement of the first gear box 6.

[0081] Further, the multi-seat sliding assembly further includes: a flange;

[0082] The slider 51 is provided with a matching hole for the bellows to extend into, and the matching hole is coaxial with the through hole;

[0083] The flange is arranged at the end of the bellows;

[0084] The flange is fixed to the end of the slider 51 by screws.

[0085] It should be noted that a matching hole for the bellows to be inserted is opened in the slider 51, the matching hole is coaxial with the through hole, and a flange is arranged at the end of the bellows, so that the flange is fixed to the end of the slider 51 by screws, so that the slider 51 can connect the bellows at both ends together to fully protect the screw rod 1.

[0086] Furthermore, a movable support member 5 is also provided between the second fixed block 9 and the first slide rail 3 .

[0087] It should be noted that by arranging a movable support member 5 between the first fixed block 8 and the first slide rail 3, the screw rod 1 can be further supported. When the first seat moves to any end of the screw rod 1, the movable support member 5 can support the screw rod 1 during the movement, thereby preventing the screw rod 1 from shaking or making abnormal noises during the movement of the first seat, and also preventing the screw rod 1 from deforming during use.

[0088] Further, the seat sliding assembly further includes: a second slide rail 4 and a second gear box 7;

[0089] The second gear box 7 is disposed between the first gear box 6 and the second fixing block 9 and is threadedly matched with the screw rod 1;

[0090] The second slide rail 4 is disposed on the second gear box 7 and is slidably matched with the lower slide rail 2. The second slide rail 4 is used to install the second seat;

[0091] The movable support member 5 is located between the first slide rail 3 and the second slide rail 4 .

[0092] It should be noted that the structures of the first gear box 6 and the second gear box 7 of the present application are the same. Therefore, by setting the second slide rail 4 and the second gear box 7, it is possible to achieve that two seats share one screw rod 1, and then during the axial movement of the first gear box 6 and the second gear box 7 along the screw rod 1, they can directly drive the corresponding first slide rail 3 and the second slide rail 44 to move along the lower slide rail 2.

[0093] It should also be noted that since a movable support member 5 is provided between the first slide rail 3 and the second slide rail 44 for installing the seats, and since the movable support member 5 is provided with a through hole for the screw rod 1 to pass through, when the first seat and the second seat need to be moved to one end of the screw rod 1 at the same time, the movable support member 5 can also move with the first seat and the second seat, and can support the screw rod 1 during the movement, thereby preventing the screw rod 1 from shaking or making abnormal noises during the movement of the first seat and / or the second seat, and also preventing the screw rod 1 from being deformed during use.

[0094] Specifically, a movable support 5 is provided between the first slide rail 3 and the first fixed block 8 , and between the second slide rail 4 and the second fixed block 9 .

[0095] It should be noted that by providing movable support members 5 between the first slide rail 3 and the first fixed block 8, and between the second slide rail 4 and the second fixed block 9, the screw rod 1 is supported at different positions by multiple movable support members 5, so that the screw rod 1 can be supported during the movement of the first slide rail 3 and the second slide rail 4, which effectively prevents the screw rod 1 from shaking or making abnormal noises during the movement of the first seat and / or the second seat, and also prevents the screw rod 1 from being deformed during use.

[0096] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A seat sliding assembly, characterized in that: At least includes: a screw rod, a lower sliding rail, a first sliding rail, a movable support, a first gear box, a first fixed block and a second fixed block; Two ends of the screw rod are fixed in the slide groove of the lower slide rail through the first fixing block and the second fixing block; The first gear box is threadably matched with the lead screw; The first slide rail is disposed on the first gear box and is slidably matched with the lower slide rail, and the first slide rail is used to install the first seat; The movable support member is provided between the second fixed block and the first slide rail. The movable support member is movably disposed in the lower slide rail. The movable support member is provided with a through hole for the screw rod to pass through.

2. The seat sliding assembly according to claim 1, characterized in that: The lower slide rail comprises: a horizontal portion, a first vertical portion and a second vertical portion; The lower end of the first vertical portion and the lower end of the second vertical portion are respectively connected to two sides of the horizontal portion; The upper end of the first vertical portion and the upper end of the second vertical portion are both bent inward to form a limiting member.

3. The seat sliding assembly according to claim 2, characterized in that: The movable support member comprises: a slider and a plurality of rollers; The slider is provided with the through hole; The rollers are arranged on both sides of the sliding block.

4. The seat sliding assembly according to claim 3, characterized in that: A first protrusion is disposed on the top of the sliding block and contacts the limiting member of the first vertical portion and the limiting member of the second vertical portion.

5. The seat sliding assembly according to claim 4, characterized in that: The first protrusion is a hollow structure.

6. The seat sliding assembly according to claim 4, characterized in that: Second protrusions are provided on both sides of the sliding block and are in contact with the side walls of the first vertical portion and the second vertical portion.

7. The seat slide assembly according to claim 6, characterized in that: The second protrusion is an arc structure.

8. The seat slide assembly according to claim 3, characterized in that: Also includes: Set A protective member provided on the screw rod; One end of the protective member is connected to the first gear box, and the other end is connected to one end of the sliding block.

9. The seat slide assembly according to claim 8, characterized in that: The protective member is a bellows.

10. The seat slide assembly according to claim 9, characterized in that: Also includes: Flange; The slider is provided with a matching hole for the bellows to extend into, and the matching hole is coaxial with the through hole; The flange is arranged at the end of the bellows; The flange is fixed to the end of the slider by screws.

11. The seat slide assembly according to claim 1, characterized in that: The movable support is also provided between the first fixed block and the first slide rail.

12. The seat slide assembly according to claim 1, characterized in that: Also includes: a second slide rail and a second gear box; The second gear box is disposed between the first gear box and the second fixed block and is threadedly matched with the screw rod; The second slide rail is disposed on the second gear box and slidably cooperates with the lower slide rail, and the second slide rail is used to install the second seat; The movable support member is located between the first slide rail and the second slide rail.

13. The seat slide assembly according to claim 12, characterized in that: The movable support is provided between the first slide rail and the first fixed block, and between the second slide rail and the second fixed block.

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