Hidden offset lead screw electric long sliding rail and assembling method thereof

Abstract

The invention relates to a hidden offset lead screw electric long sliding rail and an assembling method thereof. The hidden offset lead screw electric long sliding rail is a component in an automobile seat. The electric sliding rail comprises an electric assembly, a wire harness box, a left sliding rail part and a right sliding rail part, the left sliding rail part and the right sliding rail part are symmetrical in structure, the left sliding rail part and the right sliding rail part are connected through a motor assembly, and the wire harness box is connected with the left sliding rail part or the right sliding rail part. The left sliding rail piece and the right sliding rail piece each comprise a lower sliding rail assembly, a lead screw assembly, an upper sliding rail assembly, an electric assembly connecting plate, a decoration assembly and an end cover. The gearbox is connected with the lead screw in a matched mode, the lead screw assembly is fixed in the lower sliding rail assembly in an offset mode through the front fixing block and the rear fixing block, the upper sliding rail assembly is matched with the lower sliding rail assembly, the upper portion of the gearbox is arranged in the upper sliding rail assembly, the electric assembly connecting plate is fixed to the upper sliding rail assembly, and the decoration assembly and the end cover are both arranged on the lower sliding rail assembly. The device is reasonable in structural design, safe, reliable, low in cost, wide in application range, capable of protecting the service life of the lead screw, convenient to install and capable of meeting use requirements.

Description

Technical Field

[0001] The invention relates to a slide rail and an assembly method thereof, in particular to a hidden offset screw rod electric long slide rail and an assembly method thereof, which is a component of a car seat. Background Art

[0002] Car seat rails are located at the bottom of the car seat and can adjust the fore-and-aft position of the seat as needed.

[0003] At present, the same type of automobile seat slide rails include 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 slide 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 automobile seat slide rails of this structure have the following main disadvantages in actual use: (1) The single-wire rod is set in the middle and needs to be welded through some installation angles to fix the bolts, which makes installation very inconvenient; (2) The wires in the harness box cannot be hidden in the slide rail, and an auxiliary slide rail must be added to place the wires, which increases the cost; (3) Schematic diagram of the existing central screw guide rail installation, such as Figure 1 As shown, it includes an upper slide rail 1-1, a lower slide rail 1-2, a screw fixing block 1-4 for fixing a screw rod 1-3, a mounting foot 1-6 is mounted on a vehicle floor 1-7 through a fixing bolt 1-5, and a carpet 1-8, a foam component supplement 1-9 and a foam component 1-10 are provided. The foam component supplement 1-9 needs to be provided with an opening to avoid the mounting foot 1-6, and the carpet 1-8 needs to be provided with a tearing position for lowering the fixing bolt 1-5. The installation is complicated, increases labor costs, and is time-consuming and labor-intensive. (4) Schematic diagram of the inner cavity of an existing open offset screw guide rail, such as Figure 2 As shown, it includes a screw rod 1-3 and a fixing bolt 1-5. The opening size 1-11 of the lower slide rail is large (wide), which makes it easy for foreign objects to fall in and step on the screw rod, increasing safety hazards and damaging performance. When the installation bolts are installed, it is easy to hit the screw rod 1-3, increasing noise and damaging the screw rod 1-3. In addition, the inner cavity structure makes the screw rod 1-3 prone to dust and other disadvantages.

[0004] Therefore, it is particularly necessary to provide a slide rail with reasonable structural design, convenient installation, reduced cost, protection of the life and performance of the screw rod, and reduced safety hazards. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a hidden offset lead screw electric long slide rail and an assembly method thereof which has a reasonable structural design, is safe and reliable, reduces costs, has a wide range of applications, can protect the life of the lead screw, and is easy to install.

[0006] The technical solution adopted by the present invention to solve the above-mentioned problem is: the hidden offset screw rod electric long slide rail comprises an electric component, a wiring harness box, and a left slide rail member and a right slide rail member with mutually symmetrical structures, the left slide rail member and the right slide rail member are connected through a motor component, and the wiring harness box is connected to the left slide rail member or the right slide rail member, characterized in that: the left slide rail member and the right slide rail member both comprise a lower rail assembly, a screw rod assembly, an upper slide rail assembly, an electric component connecting plate, a decorative component and an end cover, the screw rod assembly comprises a front fixing block, a rear fixing block, a gear box and a screw rod, the front and rear ends of the screw rod are respectively provided with a front fixing block and a rear fixing block, the gear box is connected to the screw rod in cooperation, the screw rod assembly is offset and fixed to the interior of the lower rail assembly through the front fixing block and the rear fixing block, the upper slide rail assembly cooperates with the lower rail assembly, the upper part of the gear box is arranged inside the upper slide rail assembly, the electric component connecting plate is fixed on the upper slide rail assembly, and the decorative component and the end cover are both arranged on the lower slide rail assembly.

[0007] Preferably, a plurality of ornament brackets are provided on the lower slide rail assembly of the present invention, and the decorative assembly is clamped on the lower slide rail assembly via the plurality of ornament brackets.

[0008] Preferably, the end cover of the present invention is clamped on the lower slide rail assembly through the decoration brackets at both ends of the lower slide rail assembly and is pressed together with the decoration assembly.

[0009] Preferably, the wiring harness box of the present invention includes a lower cover, an upper cover, a wiring harness body and a wire drag buckle. The lower cover is matched with the upper cover. The wiring harness body is arranged inside the lower cover and the upper cover and is dragged by the wire drag buckle. The wire drag buckle is connected to the upper slide rail assembly.

[0010] Preferably, the wiring harness body of the present invention comprises a seat-end wiring harness head and a vehicle-end wiring harness head, a lower cover plate slot is provided on the lower cover plate, and the vehicle-end wiring harness head is fixed to the lower cover plate slot.

[0011] Preferably, the upper slide rail assembly and the lower slide rail assembly described in the present invention are slidably matched through multiple pairs of bearings.

[0012] Preferably, the motor in the electric assembly of the present invention is a brushless motor provided with a control module.

[0013] The present invention also provides an assembly method for a hidden offset lead screw electric long slide rail, which is characterized in that the specific assembly process is as follows: (S1) Install the wiring harness box on the vehicle body, connect the wiring harness head at the vehicle body end to the corresponding end of the vehicle body, and cover the carpet; (S2) The gear box in the screw assembly is installed on the upper slide rail assembly, fixed by the electric assembly connecting plate, and then installed as a whole on the lower slide rail assembly. The screw and the rear fixing block are connected to the gear box and fixed with the front fixing block. The front fixing block and the rear fixing block are then installed on the lower slide rail assembly by bolts. The decorative assembly and the end cover are then clamped on the lower slide rail assembly. The installation of the left slide rail assembly is completed. Similarly, the installation of the right slide rail assembly is completed. (S3) The electric assembly is fixed to the left slide rail and the right slide rail respectively, and the flexible shafts at both ends of the electric assembly are matched with the gear boxes in the left slide rail and the right slide rail; (S4) Installing the left slide rail component, the right slide rail component, and the electric assembly into corresponding positions of the vehicle body, wherein the tow line buckle is introduced into the left slide rail component and is engaged with the upper slide rail assembly; (S5) Press the end cover on one side of the wiring harness box into the lower slide rail assembly and press it together with the decorative assembly.

[0014] Compared with the prior art, the present invention has the following advantages and effects: (1) The overall structural design is reasonable, stable and reliable, easy to assemble, and has a wide range of applications; (2) The wires in the wiring harness box can be placed in the inner cavity of the long slide rail, eliminating the need for an auxiliary slide rail and reducing costs; (3) The hidden screw rod can protect the life of the screw rod and prevent it from being damaged. It is safe and reliable and meets the requirements of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation of an existing center-mounted screw guide rail.

[0016] Figure 2 It is a schematic diagram of the inner cavity of an existing offset screw guide rail.

[0017] Figure 3 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0018] Figure 4 It is a schematic diagram of the overall split structure of an embodiment of the present invention.

[0019] Figure 5 It is a schematic diagram of the disassembled structure of the left slide rail member in an embodiment of the present invention.

[0020] Figure 6 It is a schematic diagram of the disassembled structure of the wiring harness box in an embodiment of the present invention.

[0021] Figure 7 Schematic diagram of slide rail installation in an embodiment of the present invention.

[0022] Figure 8 Schematic diagram of the inner cavity of the slide rail in an embodiment of the present invention.

[0023] Figure 1-Figure 2Middle: upper slide rail 1-1, lower slide rail 1-2, screw rod 1-3, screw rod fixing block 1-4, fixing bolt 1-5, mounting foot 1-6, vehicle floor 1-7, carpet 1-8, foam part supplement 1-9, foam part 1-10, lower slide rail opening size 1-11.

[0024] Figure 3-Figure 8 Middle: left slide rail 1, right slide rail 2, electric assembly 3, wiring harness box 4; Left slide rail assembly 1: lower slide rail assembly 11, screw assembly 12, upper slide rail assembly 13, electric assembly connecting plate 14, decorative assembly 15, end cover 16, decorative bracket 111, front fixing block 121, rear fixing block 122, gear box 123, screw 124; Wire harness box 4: lower cover plate 41, upper cover plate 42, wire harness body 43, wire drag buckle 44, lower cover plate slot 411, seat end wire harness head 431, vehicle body end wire harness head 432; Bolt fixing part 5, screw fixing part 6, carpet 7, vehicle floor 8, PU foam part 9, lower sliding rail opening 10. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and by way of examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.

[0026] Example

[0027] See also Figures 3 to 8 In this embodiment, the hidden offset screw electric long slide includes a left slide member 1, a right slide member 2, an electric component 3 and a wiring harness box 4. The left slide member 1 and the right slide member 2 are connected through the motor component 3, and the wiring harness box 4 is connected to the left slide member 1 or the right slide member 2.

[0028] In the present embodiment, the structures of the left slide rail component 1 and the right slide rail component 2 are symmetrical to each other. The left slide rail component 1 and the right slide rail component 2 both include a lower slide rail assembly 11, a screw assembly 12, an upper slide rail assembly 13, an electric assembly connecting plate 14, a decorative assembly 15 and an end cover 16.

[0029] In this embodiment, the screw rod assembly 12 includes a front fixing block 121, a rear fixing block 122, a gear box 123 and a screw rod 124. The front and rear ends of the screw rod 124 are respectively provided with the front fixing block 121 and the rear fixing block 122. The gear box 123 is connected with the screw rod 124. The screw rod assembly 12 is offset and fixed to the inside of the lower slide rail assembly 11 through the front fixing block 121 and the rear fixing block 122. The upper slide rail assembly 13 cooperates with the lower slide rail assembly 11. The upper part of the gear box 123 is arranged inside the upper slide rail assembly 13. The electric component connecting plate 14 is fixed on the upper slide rail assembly 13. The decorative component 15 and the end cover 16 are both arranged on the lower slide rail assembly 11.

[0030] In this embodiment, a plurality of ornament brackets 111 are disposed on the lower slide rail assembly 11 , and the decoration assembly 15 is clamped on the lower slide rail assembly 11 through the plurality of ornament brackets 111 .

[0031] In this embodiment, the end cover 16 is clamped on the lower rail assembly 11 through the decorative component brackets 111 at both ends of the lower rail assembly 11 and is pressed together with the decorative assembly 15 .

[0032] In this embodiment, the upper slide rail assembly 13 and the lower slide rail assembly 11 are slidably matched through multiple pairs of bearings.

[0033] In this embodiment, the motor in the electric component 3 is a brushless motor provided with a control module.

[0034] In this embodiment, the wire harness box 4 includes a lower cover plate 41, an upper cover plate 42, a wire harness body 43 and a wire drag buckle 44. The lower cover plate 41 matches the upper cover plate 42. The wire harness body 43 is arranged inside the lower cover plate 41 and the upper cover plate 42, and is dragged by the wire drag buckle 44. The wire drag buckle 44 is connected to the upper slide rail assembly 13.

[0035] In this embodiment, the harness body 43 includes a seat-end harness head 431 and a vehicle-end harness head 432 . A lower cover plate slot 411 is provided on the lower cover plate 41 , and the vehicle-end harness head 432 is fixed to the lower cover plate slot 411 .

[0036] In this embodiment, the wire harness box 4 is connected to the left slide rail member 1 or the right slide rail member 2 , that is, the wire ends in the wire harness box 4 are fixedly connected to the upper slide rail assembly 13 in the left slide rail member 1 or the right slide rail member 2 .

[0037] The specific assembly process of the hidden offset screw electric long slide rail in this embodiment is as follows: (S1) Install the harness box 4 on the vehicle body, connect the vehicle body end harness head 432 to the corresponding end of the vehicle body, and cover the carpet; (S2) The gear box 123 in the screw assembly 12 is installed on the upper slide rail assembly 13, fixed by the electric assembly connecting plate 14, and then installed as a whole on the lower slide rail assembly 11. The screw 124 and the rear fixing block 122 are connected to the gear box 123 and fixed with the front fixing block 121. The front fixing block 121 and the rear fixing block 122 are then installed on the lower slide rail assembly 11 by bolts. Then the decorative assembly 15 and the end cover 16 are clamped on the lower slide rail assembly 11. The installation of the left slide rail component 1 is completed. Similarly, the installation of the right slide rail component 2 is completed. (S3) The electric component 3 is fixed to the left slide rail component 1 and the right slide rail component 2 respectively, and the flexible shafts at both ends of the electric component 3 cooperate with the gear boxes 123 in the left slide rail component 1 and the right slide rail component 2; (S4) The left slide rail component 1, the right slide rail component 2, and the electric assembly 3 are installed in the corresponding position of the vehicle body, wherein the tow line buckle 44 is introduced into the left slide rail component 1 and is engaged with the upper slide rail assembly 13; ( S5 ) The end cover 16 on one side of the wire harness box 4 is pressed into the lower rail assembly 11 and pressed together with the decoration assembly 15 .

[0038] See also Figure 7-Figure 8 As shown, the upper slide rail assembly 13 cooperates with the lower slide rail assembly 11, the lower slide rail assembly 11 is installed on the vehicle floor 8 through the bolt fixing part 5, the screw rod 124 is arranged on the screw fixing part 6, and a PU foam part 9 is arranged between the carpet 7 and the vehicle floor 8. The size of the lower slide rail opening 10 is small, and the screw rod 124 is completely hidden and protected.

[0039] When assembling the hidden offset lead screw electric long slide rail of the present application, there is no need to consider avoiding the installation angle, and repeatedly tearing and closing the action, thus avoiding adding extra labor intensity, saving time and effort, and meeting the use requirements.

[0040] Explanation of hidden offset: The screw assembly 12 is hidden inside the lower slide rail assembly 11. The screw assembly 12 is offset to one side relative to the center of the lower slide rail assembly 11. If the left slide rail component 1 deviates to the right, the right slide rail component 2 deviates to the left, that is, each is offset to the center of the entire seat to achieve symmetry.

[0041] Through the above description, those skilled in the art can already implement it.

[0042] 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 only an example of the structure of the present invention. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. Technicians in the technical field of the present invention 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 present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A hidden offset screw electric long slide rail, comprising an electric assembly (3), a wiring harness box (4), and a left slide rail member (1) and a right slide rail member (2) having mutually symmetrical structures, wherein the left slide rail member (1) and the right slide rail member (2) are connected via a motor assembly (3), and the wiring harness box (4) is connected to the left slide rail member (1) or the right slide rail member (2), and is characterized in that: The left slide rail member (1) and the right slide rail member (2) both comprise a lower slide rail assembly (11), a screw assembly (12), an upper slide rail assembly (13), an electric assembly connecting plate (14), a decorative assembly (15) and an end cover (16); the screw assembly (12) comprises a front fixing block (121), a rear fixing block (122), a gear box (123) and a screw rod (124); the front and rear ends of the screw rod (124) are respectively provided with a front fixing block (121) and a rear fixing block (122); the gear box (123) is provided with a front fixing block (121) and a rear fixing block (122); The upper slide rail assembly (13) is matched with the lower slide rail assembly (11), and the upper portion of the gear box (123) is arranged inside the upper slide rail assembly (13). The electric component connecting plate (14) is fixed on the upper slide rail assembly (13), and the decorative component (15) and the end cover (16) are arranged on the lower slide rail assembly (11).

2. The hidden offset lead screw electric long slide rail according to claim 1, characterized in that: A plurality of decorative component brackets (111) are provided on the lower sliding rail assembly (11), and the decorative component (15) is clamped on the lower sliding rail assembly (11) via the plurality of decorative component brackets (111).

3. The hidden offset lead screw electric long slide rail according to claim 2 is characterized in that: The end cover (16) is clamped onto the lower rail assembly (11) via the decorative component brackets (111) at both ends of the lower rail assembly (11), and is pressed together with the decorative component (15).

4. The hidden offset lead screw electric long slide rail according to claim 1, characterized in that: The wiring harness box (4) comprises a lower cover plate (41), an upper cover plate (42), a wiring harness body (43) and a towing wire buckle (44); the lower cover plate (41) matches the upper cover plate (42); the wiring harness body (43) is arranged inside the lower cover plate (41) and the upper cover plate (42) and is dragged by the towing wire buckle (44); and the towing wire buckle (44) is connected to the upper slide rail assembly (13).

5. The hidden offset lead screw electric long slide rail according to claim 4, characterized in that: The wiring harness body (43) comprises a seat-end wiring harness head (431) and a vehicle-end wiring harness head (432); a lower cover plate slot (411) is provided on the lower cover plate (41); and the vehicle-end wiring harness head (432) is fixed to the lower cover plate slot (411).

6. The hidden offset lead screw electric long slide rail according to claim 1, characterized in that: The upper slide rail assembly (13) and the lower slide rail assembly (11) are slidably matched via a plurality of pairs of bearings.

7. The hidden offset lead screw electric long slide rail according to claim 1, characterized in that: The motor in the electric component (3) is a brushless motor provided with a control module.

8. A method for assembling a hidden offset lead screw long electric slide rail, using the hidden offset lead screw long electric slide rail as claimed in any one of claims 1 to 7, characterized in that: The specific assembly process is as follows: (S1) installing the wiring harness box (4) on the vehicle body, connecting the vehicle body end wiring harness head (432) to the corresponding end of the vehicle body, and covering with carpet; (S2) The gear box (123) in the screw rod assembly (12) is installed on the upper slide rail assembly (13), fixed by the electric assembly connecting plate (14), and then installed as a whole on the lower slide rail assembly (11). The screw rod (124) and the rear fixing block (122) are connected to the gear box (123) and fixed to the front fixing block (121). The front fixing block (121) and the rear fixing block (122) are then installed on the lower slide rail assembly (11) by bolts. The decorative assembly (15) and the end cover (16) are then clamped on the lower slide rail assembly (11). The installation of the left slide rail component (1) is completed. Similarly, the installation of the right slide rail component (2) is completed. (S3) The electric assembly (3) is fixed to the left slide rail member (1) and the right slide rail member (2) respectively, and the flexible shafts at both ends of the electric assembly (3) are matched with the gear boxes (123) in the left slide rail member (1) and the right slide rail member (2); (S4) installing the left slide rail component (1), the right slide rail component (2), and the electric assembly (3) into corresponding positions of the vehicle body, wherein the tow line buckle (44) is introduced into the left slide rail component (1) and is engaged with the upper slide rail assembly (13); (S5) The end cover (16) on one side of the wiring harness box (4) is pressed into the lower rail assembly (11) and pressed together with the decoration assembly (15).

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