Large-stroke electric sliding rail for front row

Abstract

The utility model relates to a large-stroke electric sliding rail for a front row. The large-stroke electric sliding rail is a component in an automobile seat. The sliding rail comprises a motor assembly, a left sliding rail body and a right sliding rail body, the left sliding rail body and the right sliding rail body are symmetrical in structure, each of the left sliding rail body and the right sliding rail body comprises a lower sliding rail assembly, a front installation foot, a gearbox, a lead screw, a front limiting block, an upper sliding rail assembly and a holder assembly, the gearbox is connected with the lead screw in a matched mode, and the front limiting block is arranged at the front end of the lead screw; the upper sliding rail assembly is matched with the lower sliding rail assembly through the retainer assembly, and the front installation foot and the lower sliding rail assembly are welded through laser. The motor assembly comprises a motor, a motor support, a first flexible shaft, a second flexible shaft, a first flexible shaft sleeve and a second flexible shaft sleeve, the motor is fixed on the motor support, and the first flexible shaft, the first flexible shaft sleeve, the motor, the second flexible shaft sleeve and the second flexible shaft are sequentially connected. The utility model has the advantages of reasonable structural design, safety, reliability, large stroke and wide application range, and meets the use requirements.

Description

Technical Field

[0001] The utility model relates to a slide rail, in particular to a large-stroke electric slide rail for the front row, which is a component in a car seat. Background Art

[0002] Car seat rails are located at the bottom of the car seat and allow the seat to be adjusted forward and backward as needed.

[0003] At present, the same type of car seat slides include a motor assembly and left and right slides with symmetrical structures. Both the left and right slides include a lower rail assembly, a front mounting foot, a gear box, a screw, a front limit block, an upper rail assembly and a retaining frame assembly. The car seat slides with this structure have the following main disadvantages in actual use: 1) The stroke does not exceed 240 mm. For requirements of 300 mm or more stroke, the limitation is small and cannot meet the use requirements; 2) The lower rail assembly and the front mounting foot are riveted, which is easy to deform, and the height of the rivet on the inner bottom surface of the lower rail will block the forward movement of the gear box, which will cause a safety hazard. Utility Model Content

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a long-stroke electric slide rail for the front row which has a reasonable structural design, is safe and reliable, has a large stroke and a wide range of applications.

[0005] The technical solution adopted by the utility model to solve the above problems is: the large-stroke electric slide rail for the front row includes a motor assembly and a left slide rail and a right slide rail with mutually symmetrical structures, the left slide rail and the right slide rail both include a lower rail assembly, a front mounting foot, a gear box, a screw rod, a front limit block, an upper slide rail assembly and a retaining frame assembly, the gear box is connected to the screw rod, the front end of the screw rod is provided with a front limit block, the upper slide rail assembly and the lower slide rail assembly are matched through the retaining frame assembly, and it is characterized in that: the front mounting foot and the lower slide rail assembly are laser welded; the motor assembly includes a motor, a motor bracket, a flexible shaft 1, a flexible shaft 2, a flexible shaft sleeve 1 and a flexible shaft sleeve 2, the motor is fixed on the motor bracket, and the flexible shaft 1, the flexible shaft sleeve 1, the motor, the flexible shaft sleeve 2 and the flexible shaft 2 are connected in sequence.

[0006] Preferably, the motor assembly of the present invention further includes a first pressing plate and a second pressing plate, and the first flexible shaft and the second flexible shaft are fixed to the motor bracket via the first pressing plate and the second pressing plate respectively.

[0007] Preferably, the motor bracket of the present invention includes a first card slot, a second card slot and a hook, one end of the motor is arranged in the first card slot, the other end of the motor is arranged in the second card slot, and a hook is arranged on the upper part of the second card slot.

[0008] Preferably, the motor bracket of the present invention further comprises a plurality of flexible shaft slots, one side of the motor bracket is provided with a plurality of flexible shaft slots, and the flexible shaft 2 is mounted on the motor bracket through the plurality of flexible shaft slots.

[0009] Preferably, the present invention further comprises a connector, which is arranged on the motor and matches the hook.

[0010] Preferably, the present invention further comprises a gear box cover, and the gear box is fixed to the upper slide rail assembly via gear box cover bolts.

[0011] Compared with the prior art, the present invention has the following advantages and effects: (1) The overall structural design is reasonable, safe and reliable, with a large stroke that can meet the requirements of more than 300 mm, a wide range of applications, and can be used for a variety of new energy vehicle models; (2) The lower slide rail assembly and the front mounting foot were originally riveted, which would deform. The lower slide rail assembly and the front mounting foot in this application are laser welded, which has little deformation, and the front limit block on the screw rod can extend to the front end of the lower slide rail assembly. The gear box is not restricted by the original rivet connection between the lower slide rail assembly and the front mounting foot during operation, so that there are no obstacles on the bottom surface of the lower slide rail, so that the gear box can smoothly pass over the mounting foot, thereby creating conditions for achieving a large stroke. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0013] Figure 2 It is a schematic diagram of the overall split structure of an embodiment of the utility model.

[0014] Figure 3 It is a schematic diagram of the split structure of the left slide rail in the embodiment of the utility model.

[0015] Figure 4 It is a schematic diagram of the disassembled structure of the motor assembly in the embodiment of the present utility model.

[0016] In the figure: left slide rail 1, right slide rail 2, motor assembly 3;

[0017] Left slide rail 1: lower slide rail assembly 11, front mounting foot 12, gear box 13, gear box cover 131, screw rod 14, front stop block 15, upper slide rail assembly 16, retaining frame assembly 17;

[0018] Motor assembly 3: motor 31, motor bracket 32, flexible shaft 1 33, flexible shaft 2 34, flexible shaft sleeve 1 35, flexible shaft sleeve 2 36, pressing plate 1 37, pressing plate 2 38;

[0019] Connector 311 , first card slot 321 , second card slot 322 , hook 323 , flexible shaft card slot 324 . DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0021] Example

[0022] See also Figures 1 to 4 In this embodiment, the large-stroke electric slide rail for the front row includes a motor assembly 3 and a left slide rail 1 and a right slide rail 2 with mutually symmetrical structures.

[0023] The left slide rail 1 and the right slide rail 2 in this embodiment both include a lower slide rail assembly 11, a front mounting foot 12, a gear box 13, a screw rod 14, a front limit block 15, an upper slide rail assembly 16 and a retaining frame assembly 17. The gear box 13 is connected to the screw rod 14, and a front limit block 15 is provided at the front end of the screw rod 14. The front limit block 15 is riveted to the lower slide rail assembly 11, and the upper slide rail assembly 16 is matched with the lower slide rail assembly 11 through the retaining frame assembly 17.

[0024] In this embodiment, the front mounting foot 12 and the lower rail assembly 11 are laser welded; the deformation is small, so that the front limit block on the screw rod can extend to the front end of the lower rail assembly.

[0025] The motor assembly 3 in this embodiment includes a motor 31, a motor bracket 32, a flexible shaft 33, a flexible shaft 34, a flexible shaft sleeve 35, a flexible shaft sleeve 36, a pressure plate 37 and a pressure plate 38. The motor 31 is fixed on the motor bracket 32, and the flexible shaft 33, the flexible shaft sleeve 35, the motor 31, the flexible shaft sleeve 36 and the flexible shaft 34 are connected in sequence; the flexible shaft 33 and the flexible shaft 34 are fixed to the motor bracket 32 by the pressure plate 37 and the pressure plate 38 respectively.

[0026] In this embodiment, one end of the flexible shaft 1 33 is connected to the gear box 13 in the right slide rail 2 , and the other end of the flexible shaft 1 33 passes through the flexible shaft sleeve 1 35 and is connected to the motor 31 .

[0027] In this embodiment, one end of the second flexible shaft 34 passes through the second flexible shaft sleeve 36 and is connected to the motor 31 , and the other end of the second flexible shaft 34 is connected to the gear box 13 in the left slide rail 1 .

[0028] The motor bracket 32 in this embodiment includes a first slot 321, a second slot 322, a hook 323 and multiple flexible shaft slots 324. One end of the motor 31 is arranged in the first slot 321, and the other end of the motor 31 is arranged in the second slot 322. The upper part of the second slot 322 is provided with a hook 323; one side of the motor bracket 32 is provided with multiple flexible shaft slots 324, and the flexible shaft 2 34 is installed on the motor bracket 32 through the multiple flexible shaft slots 324.

[0029] The connector 311 in this embodiment is provided on the motor 31 , and the connector 311 matches the hook 323 .

[0030] The gear box 13 in this embodiment is fixed to the upper slide rail assembly 16 via a gear box cover 131 with bolts.

[0031] Working process: The motor 31 in the motor assembly 3 works, driving the flexible shaft 1 33 and the flexible shaft 2 34 to move, driving the gear box 13 in the left slide rail 1 and the right slide rail 2 to operate, the gear box 13 moves relative to the screw rod 14, and the gear box 13 drives the upper slide rail assembly 16 to move, so that the left slide rail 1 works and the right slide rail 2 works synchronously to complete the entire action.

[0032] Through the above description, those skilled in the art can already implement it.

[0033] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is merely an example of the structure of the utility model. Any equivalent changes or simple changes made based on the structure, features and principles described in the concept of the utility model patent are included in the scope of protection of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should fall within the scope of protection of the utility model.

Claims

1. A long-stroke electric slide rail for the front row, comprising a motor assembly (3) and a left slide rail (1) and a right slide rail (2) with mutually symmetrical structures, wherein the left slide rail (1) and the right slide rail (2) both comprise a lower slide rail assembly (11), a front mounting foot (12), a gear box (13), a screw rod (14), a front stop block (15), an upper slide rail assembly (16) and a retaining frame assembly (17), wherein the gear box (13) is connected to the screw rod (14), a front stop block (15) is provided at the front end of the screw rod (14), and the upper slide rail assembly (16) is matched with the lower slide rail assembly (11) through the retaining frame assembly (17), and is characterized in that: The front mounting foot (12) and the lower rail assembly (11) are laser welded; the motor assembly (3) comprises a motor (31), a motor bracket (32), a flexible shaft 1 (33), a flexible shaft 2 (34), a flexible shaft sleeve 1 (35) and a flexible shaft sleeve 2 (36); the motor (31) is fixed on the motor bracket (32); the flexible shaft 1 (33), the flexible shaft sleeve 1 (35), the motor (31), the flexible shaft sleeve 2 (36) and the flexible shaft 2 (34) are connected in sequence.

2. The long-stroke electric slide rail for the front row according to claim 1, characterized in that: The motor assembly (3) further comprises a first pressing plate (37) and a second pressing plate (38), and the first flexible shaft (33) and the second flexible shaft (34) are fixed to the motor bracket (32) via the first pressing plate (37) and the second pressing plate (38), respectively.

3. The long-stroke electric slide rail for the front row according to claim 1 or 2, characterized in that: The motor bracket (32) comprises a first card slot (321), a second card slot (322) and a hook (323); one end of the motor (31) is arranged in the first card slot (321); the other end of the motor (31) is arranged in the second card slot (322); and a hook (323) is arranged on the upper portion of the second card slot (322).

4. The long-stroke electric slide rail for the front row according to claim 3, characterized in that: The motor bracket further comprises a plurality of flexible shaft slots (324), one side of the motor bracket (32) is provided with the plurality of flexible shaft slots (324), and the flexible shaft 2 (34) is mounted on the motor bracket (32) via the plurality of flexible shaft slots (324).

5. The long-stroke electric slide rail for the front row according to claim 3, characterized in that: It also includes a connector (311), which is arranged on the motor (31) and matches the hook (323).

6. The long-stroke electric slide rail for the front row according to claim 1, characterized in that: It also includes a gear box cover plate (131), and the gear box (13) is fixed to the upper slide rail assembly (16) through the gear box cover plate (131) bolts.

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