Centrally-mounted automobile seat horizontal driver assembly

Abstract

The utility model relates to the technical field of automobile seats, in particular to a middle-set type automobile seat horizontal driver assembly which comprises two shells, a worm is arranged between the two shells, a worm gear is arranged below the worm, two bearing mechanisms are arranged between the two shells, the two bearing mechanisms are provided with plugging mechanisms in a matched mode, and the plugging mechanisms are connected with the worm gear. The two bearing mechanisms are located at the two ends of the same shell correspondingly. According to the utility model, the screw rod is supported by the two rotary drums, the fixed drum is limited by the clamping grooves, and the two rotary drums are clamped into the adjacent annular grooves through the lantern rings to be limited, so that the screw rod is supported by the rotary drums when rotating, the screw rod can drive the rotary drums to rotate, the obstruction during rotation of the screw rod is reduced, and the bearing capacity of the screw rod is improved; therefore, the service life of the horizontal driver is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a horizontal driver assembly of a center-mounted automobile seat. Background Art

[0002] The front and rear adjustment of electric seats mostly relies on a horizontal drive. Existing horizontal drives generally include a housing, which contains a worm, a worm wheel and a corresponding supporting lubrication structure. The worm wheel generally forms a screw transmission mechanism with a screw to achieve transmission. The housing is generally fixed to the seat or guide rail with the help of a mounting frame, and a wear-resistant ring is arranged between the screw and the housing. The wear-resistant ring is used to provide auxiliary support to the screw. The horizontal drive plays a supporting role when the seat does not produce horizontal movement, causing the screw to press on the wear-resistant ring. When the screw rotates, it drives the seat to move. At this time, the friction between the screw and the wear-resistant ring is large, which can easily reduce the service life of the horizontal drive. Utility Model Content

[0003] The utility model aims to provide a horizontal drive assembly for a mid-mounted automobile seat to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A mid-mounted car seat horizontal drive assembly comprises two housings, a worm is arranged between the two housings, a worm wheel is arranged below the worm, two supporting mechanisms are arranged between the two housings, and both supporting mechanisms are equipped with a blocking mechanism, and the two supporting mechanisms are respectively located at two ends of the same housing;

[0006] The supporting mechanism includes a fixed cylinder, both ends of the inner side walls of the two shells are provided with grooves, the outer side wall of the fixed cylinder is fixedly connected to two insert strips, and the two insert strips are respectively fixedly embedded in the adjacent grooves on the two shells, a rotating cylinder is arranged inside the fixed cylinder, and a plurality of rings are fixedly sleeved on the outer side wall of the rotating cylinder, a plurality of annular grooves are provided on the inner side wall of the fixed cylinder, and the plurality of annular grooves correspond one-to-one to the plurality of rings, and the plurality of rings are rotatably sleeved in the corresponding annular grooves.

[0007] Furthermore, the tops of the two shells are both provided with oil filling holes.

[0008] Furthermore, the inner diameter of the fixed cylinder is larger than the outer diameter of the rotating cylinder.

[0009] Furthermore, a plurality of notches are formed on one side of the plurality of collars.

[0010] Furthermore, the blocking mechanism comprises a rubber ring, and a blocking ring is fixedly connected to one side of the rubber ring, and the blocking ring is movably sleeved with the inner side wall of the adjacent fixed tube.

[0011] Furthermore, a plurality of clamping holes are opened at one end of the fixing tube, and a plurality of plugging rods are fixedly connected to one side of the rubber ring, the plurality of plugging rods correspond to the plurality of clamping holes one by one, and the plurality of plugging rods are movably plugged into the corresponding clamping holes.

[0012] Furthermore, one end of each of the plurality of insert rods is fixedly sleeved with a clamping ring, and each of the plurality of clamping rings is movably clamped in adjacent clamping holes.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The screw rod is supported by two rotating cylinders, and the fixed cylinder is limited by the slot, and the two rotating cylinders are limited by the rings on the upper rings that are clamped into the annular grooves on the adjacent fixed cylinders. When the screw rod rotates, it is supported by the rotating cylinder, and the screw rod can drive the rotating cylinder to rotate, thereby reducing the obstruction of the screw rod during rotation and improving the bearing capacity of the screw rod, thereby increasing the service life of the horizontal drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is an exploded view of the internal structure of the shell in the utility model;

[0017] Figure 3 It is an exploded view of the supporting mechanism and the blocking mechanism structure in the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the supporting mechanism and the blocking mechanism in the utility model.

[0019] In the figure: 100, housing; 101, oil filling hole; 102, slot; 200, worm; 210, worm wheel; 300, supporting mechanism; 310, fixing cylinder; 311, annular groove; 312, slot; 320, fillet; 330, rotating cylinder; 340, sleeve ring; 341, notch; 400, blocking mechanism; 410, rubber ring; 420, plugging rod; 430, snap ring; 440, blocking ring. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 4In an embodiment of the utility model, a mid-mounted vehicle seat horizontal drive assembly includes two housings 100, and a worm 200 is disposed between the two housings 100, a worm wheel 210 is disposed below the worm 200, two supporting mechanisms 300 are disposed between the two housings 100, and the two supporting mechanisms 300 are both equipped with a blocking mechanism 400, and the two supporting mechanisms 300 are respectively located at two ends of the same housing 100;

[0022] The supporting mechanism 300 includes a fixed cylinder 310, and both ends of the inner walls of the two shells 100 are provided with grooves 102. The outer wall of the fixed cylinder 310 is fixedly connected to two inserts 320, and the two inserts 320 are respectively fixedly embedded in the adjacent grooves 102 on the two shells 100. A rotating cylinder 330 is arranged inside the fixed cylinder 310, and a plurality of rings 340 are fixedly sleeved on the outer wall of the rotating cylinder 330. A plurality of annular grooves 311 are opened on the inner wall of the fixed cylinder 310, and the plurality of annular grooves 311 correspond one-to-one to the plurality of rings 340, and the plurality of rings 340 are all rotatably sleeved in the corresponding annular grooves 311.

[0023] Specifically, the rotating cylinders 330 on the two supporting mechanisms 300 are sleeved on the screw rod, and the screw rod is supported by the two rotating cylinders 330, and the two fixed cylinders 310 are fixed on the two shells 100 by embedding the adjacent card slots 102 with the help of the insert strips 320, and the two rotating cylinders 330 are embedded in the annular grooves 311 on the adjacent fixed cylinders 310 with the help of multiple rings 340 to fix their own positions. When the screw rod rotates, the two rotating cylinders 330 can rotate synchronously with the screw rod, thereby reducing the friction between the screw rod and the rotating cylinder 330 and improving the service life of the horizontal drive.

[0024] Embodiment 1

[0025] like Figure 1-4 As shown, in this embodiment, oil filling holes 101 are opened on the tops of the two shells 100, the inner diameter of the fixed cylinder 310 is larger than the outer diameter of the rotating cylinder 330, and multiple notches 341 are opened on one side of the multiple rings 340.

[0026] In this embodiment, through the oil filling hole 101, the user can inject lubricating oil from the inside of the oil filling hole 101 to facilitate the rotation of the worm wheel 210, worm 200 and screw, and there is a gap between the inner wall of the fixed cylinder 310 and the outer wall of the rotating cylinder 330, so that the lubricating oil can enter the multiple annular grooves 311 through this gap, so that the ring 340 can rotate more smoothly due to the lubrication of the lubricating oil, and the interior of the multiple notches 341 is connected with the interior of the gap between the adjacent rotating cylinder 330 and the adjacent fixed cylinder 310, so that the lubricating oil can more easily flow into the multiple annular grooves 311 through the notches 341 to lubricate the ring 340.

[0027] like Figure 3-4As shown, in this embodiment, the blocking mechanism 400 includes a rubber ring 410 , and a blocking ring 440 is fixedly connected to one side of the rubber ring 410 , and the blocking ring 440 is movably sleeved with the inner wall of the adjacent fixed tube 310 .

[0028] During the specific implementation, the sealing rings 440 on the two rubber rings 410 are respectively put on one end of the two fixed cylinders 310, so that the two rubber rings 410 seal the gaps between the adjacent rotating cylinders 330 and the adjacent fixed cylinders 310 to prevent the lubricating oil from leaking out of the gaps, and the inner walls of the two rubber rings 410 are tightly fitted with the screw rod. The specific shape of the rubber ring 410 can be specifically designed and produced according to the shape of the matching screw rod, thereby preventing the lubricating oil between the two housings 100 from flowing out from the gap between the screw rod and the rotating cylinder 330.

[0029] Embodiment 2

[0030] On the basis of the first embodiment, the insertion rod 420 and the clamping ring 430 are provided to prevent the rubber ring 410 from being separated from the adjacent fixing tube 310 .

[0031] like Figure 3-4 As shown, in the present embodiment, a plurality of locking holes 312 are opened at one end of the fixing tube 310, and a plurality of insertion rods 420 are fixedly connected to one side of the rubber ring 410, the plurality of insertion rods 420 correspond to the plurality of locking holes 312 one by one, and the plurality of insertion rods 420 are all movably inserted into the corresponding locking holes 312, a clamping ring 430 is fixedly sleeved at one end of the plurality of insertion rods 420, and the plurality of clamping rings 430 are all movably clamped into the adjacent locking holes 312.

[0032] During specific implementation, the user can use the insertion rod 420 to insert the rubber ring 410 into the clamping hole 312 on the adjacent fixed tube 310, so that the clamping ring 430 on the insertion rod 420 is embedded in the adjacent clamping hole 312 to fix the rubber ring 410, so that when the screw rod rotates, although the rubber ring 410 is tightly fitted with the screw rod, the insertion rod 420 and the clamping ring 430 are clamped into the adjacent clamping hole 312 to fix the rubber ring 410, thereby preventing the rubber ring 410 from detaching from the adjacent fixed tube 310.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A horizontal drive assembly for a mid-mounted automobile seat, comprising two housings (100), wherein a worm (200) is disposed between the two housings (100), and a worm wheel (210) is disposed below the worm (200), wherein: Two supporting mechanisms (300) are arranged between the two shells (100), and the two supporting mechanisms (300) are both equipped with a blocking mechanism (400), and the two supporting mechanisms (300) are respectively located at two ends of the same shell (100); The supporting mechanism (300) comprises a fixed cylinder (310), both ends of the inner side walls of the two shells (100) are provided with a card slot (102), the outer side wall of the fixed cylinder (310) is fixedly connected with two insert strips (320), and the two insert strips (320) are respectively fixedly embedded in the adjacent card slots (102) on the two shells (100), a rotating cylinder (330) is arranged inside the fixed cylinder (310), and the outer side wall of the rotating cylinder (330) is fixedly sleeved with a plurality of collars (340), the inner side wall of the fixed cylinder (310) is provided with a plurality of annular grooves (311), and the plurality of annular grooves (311) correspond to the plurality of collars (340) one by one, and the plurality of collars (340) are all rotatably sleeved in the corresponding annular grooves (311).

2. A mid-mounted vehicle seat horizontal drive assembly according to claim 1, characterized in that: The tops of the two housings (100) are each provided with an oil filling hole (101).

3. The horizontal actuator assembly of a mid-mounted vehicle seat according to claim 2, characterized in that: The inner diameter of the fixed cylinder (310) is greater than the outer diameter of the rotating cylinder (330).

4. A mid-mounted vehicle seat horizontal drive assembly according to claim 3, characterized in that: A plurality of notches (341) are formed on one side of the plurality of collars (340).

5. The horizontal actuator assembly for a mid-mounted vehicle seat according to claim 4, characterized in that: The blocking mechanism (400) comprises a rubber ring (410), and a blocking ring (440) is fixedly connected to one side of the rubber ring (410), and the blocking ring (440) is movably sleeved with the inner side wall of the adjacent fixed cylinder (310).

6. A mid-mounted vehicle seat horizontal drive assembly according to claim 5, characterized in that: A plurality of locking holes (312) are formed at one end of the fixing tube (310), and a plurality of insertion rods (420) are fixedly connected to one side of the rubber ring (410). The plurality of insertion rods (420) correspond to the plurality of locking holes (312) one by one, and the plurality of insertion rods (420) are movably inserted into the corresponding locking holes (312).

7. A mid-mounted vehicle seat horizontal drive assembly according to claim 6, characterized in that: One end of each of the plurality of insertion rods (420) is fixedly sleeved with a clamping ring (430), and each of the plurality of clamping rings (430) is movably clamped inside adjacent clamping holes (312).

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