Layered retractable trunk seat mechanism

Abstract

The utility model discloses a layered retractable type trunk seat mechanism which comprises a lower layer plate, an upper layer plate, a fixing plate and a seat. Telescopic devices are arranged between the lower-layer plate and the upper-layer plate and between the upper-layer plate and the fixing plate respectively, each telescopic device comprises a double-shaft motor, a lower sliding rail and an upper sliding rail, the lower sliding rails are fixedly arranged on the top face of the lower-layer plate or the top face of the upper-layer plate, the upper sliding rails are fixedly arranged on the bottom face of the upper-layer plate or the bottom face of the fixing plate, and gears are arranged at the ends of output shafts of the double-shaft motors. A rack matched with the gear is fixedly arranged in the upper sliding rail, a plurality of lower pressing wheels and a plurality of upper pressing wheels are further arranged on the upper sliding rail, supporting rails matched with the lower pressing wheels are arranged in the lower sliding rail, and lower pressing rails matched with the upper pressing wheels are fixedly arranged on the lower layer plate or the upper layer plate. The seat extends out along with the fixing plate located on the upper layer, the extending distance is long, the user experience is good, in addition, various anti-bending structures are arranged in the telescopic device, the anti-bending strength of the telescopic device is effectively guaranteed, and the structure is quite firm.

Description

Technical Field

[0001] The utility model relates to the field of automobile accessories, and particularly relates to a layered retractable trunk seat mechanism. Background Technique

[0002] On some mid - to - large - sized SUV models, a trunk seat mechanism that can be automatically extended and retracted is optionally installed or directly provided to meet the diverse outdoor use needs of users. Combining production assembly and actual use experience, it is known that the currently common seat telescopic mechanism is that an electric slide rail directly drives the seat to extend, and then the seat back plate is manually flipped up to form a seat structure with a backrest. The disadvantage of this structure is that the extension distance is limited and the slide rail is prone to bending deformation when the user is sitting. This situation is more likely to occur when the user has a larger body weight. Therefore, a trunk seat mechanism with a long extension distance and a reliable structure is proposed here. Content of the Utility Model

[0003] Aiming at the problems in the background technique, the purpose of the utility model is to provide a layered retractable trunk seat mechanism, which effectively solves the problems existing in the background technique.

[0004] To achieve the above - mentioned purpose, the utility model adopts the following technical solutions:

[0005] A layered retractable trunk seat mechanism includes a lower layer plate, an upper layer plate, a fixing plate, and a seat; telescopic devices are respectively arranged between the lower layer plate and the upper layer plate and between the upper layer plate and the fixing plate. The telescopic device includes a double - shaft motor and a lower slide rail and an upper slide rail that cooperate with each other. The lower slide rail is fixed on the top surface of the lower layer plate or the upper layer plate, and the upper slide rail is fixed on the bottom surface of the upper layer plate or the bottom surface of the fixing plate. A gear is arranged at the end of the output shaft of the double - shaft motor, and the gear is located inside the lower slide rail. A reinforcing rod with an elliptical cross - section is arranged along the length direction inside the upper slide rail. A rack that cooperates with the gear is fixedly arranged on the lower side of the reinforcing rod; a plurality of lower pressing wheels and a plurality of upper pressing wheels are also arranged on the upper slide rail. The lower pressing wheels are located inside the lower slide rail and a supporting track that cooperates with the lower pressing wheels is arranged inside the lower slide rail. The upper pressing wheels are located outside the lower slide rail and a lower pressing track that cooperates with the upper pressing wheels is fixedly arranged on the lower layer plate or the upper layer plate; the seat includes a seat plate fixed on the fixing plate and a back plate hinged on one side of the seat plate.

[0006] Furthermore, the lower slide rail is fixed on the top surface of the lower layer plate or the upper layer plate through bolts, and the upper slide rail is also fixed on the bottom surface of the upper layer plate or the bottom surface of the fixing plate through bolts.

[0007] Furthermore, two reinforcing rods are arranged in parallel, the length of the reinforcing rods is equal to the length of the upper slide rail, a bottom plate is fixedly arranged on the lower sides of the two reinforcing rods together, and the rack is fixedly arranged on the bottom plate.

[0008] Further, the support rail includes a left section and a right section. The left section includes a first horizontal plate and a plurality of diagonal braces fixed on the front and rear vertical walls inside the lower slide rail. The right section includes a plurality of columns fixed on the inner bottom surface of the lower slide rail, and a second horizontal plate is fixedly arranged on the upper ends of the plurality of columns. The top surfaces of the first horizontal plate and the second horizontal plate are flush.

[0009] Further, the upper pressing wheel includes an upper wheel set and a lower wheel set, and an upper rail and a lower rail which are respectively matched with the upper wheel set and the lower wheel set are arranged on the lower pressing rail.

[0010] Further, the cross sections of the upper rail and the lower rail are both right-angled triangles, and the two right-angled sides of the right-angled triangle are respectively matched with the lower pressing rail and the upper pressing wheel.

[0011] The utility model has the following beneficial technical effects:

[0012] In the utility model, a hierarchical extension structure is applied. The seat extends out along with the fixed plate located on the upper layer, and the extendable distance is long, and the user experience is good. In addition, a plurality of anti-bending structures such as a reinforcing rod, a lower pressing wheel, a support rail, an upper pressing wheel and a lower pressing rail are arranged in the telescopic device, effectively ensuring the anti-bending strength of the telescopic device, and the structure is very reliable. Description of the Drawings

[0013] Figure 1 It is a top view of the embodiment of the utility model after removing the fixed plate and the seat;

[0014] Figure 2 It is a schematic internal structure diagram of the telescopic device in the embodiment of the utility model Figure 1 ;

[0015] Figure 3 It is Figure 2 the sectional view taken along the line A-A in

[0016] Figure 4 It is a schematic internal structure diagram of the telescopic device in the embodiment of the utility model Figure 2 。 Detailed Embodiment

[0017] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0018] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] As Figures 1-4 shown, a hierarchical retractable trunk seat mechanism described in this embodiment includes a lower layer board 1, an upper layer board 2, a fixing board, and a seat; the fixing board and the seat are not shown. The lower layer board 1 is fixed in the automobile trunk by bolts. Telescopic devices are respectively arranged between the lower layer board 1 and the upper layer board 2 and between the upper layer board 2 and the fixing board. The telescopic device includes a double-shaft motor 3 and a lower slide rail 4 and an upper slide rail 5 that cooperate with each other. The lower slide rail 4 is fixed on the top surface of the lower layer board 1 or the top surface of the upper layer board 2 by bolts, and the upper slide rail 5 is fixed on the bottom surface of the upper layer board 2 or the bottom surface of the fixing board by bolts. The output shafts 6 of the double-shaft motor 3 are both flexible shafts, and the end of the output shaft 6 has a square insertion block 7. A rotating shaft is arranged on the lower slide rail 4. One end of the rotating shaft located inside the lower slide rail is provided with a gear 8, and the end located outside the lower slide rail 4 is provided with a square hole that cooperates with the square insertion block 7. The square insertion block 7 is inserted into the square hole for transmission;

[0020] There are two reinforcing rods 9 with an oval cross-section arranged along the length direction inside the upper slide rail 5. The major axis of the ellipse is arranged vertically, with high bending strength. The length of the reinforcing rod 9 is equal to the length of the upper slide rail 5. A bottom plate is fixedly arranged on the lower sides of the two reinforcing rods 9, and a rack 10 that cooperates with the gear 8 is fixedly arranged on the bottom plate; A plurality of lower pressing wheels 11 and a plurality of upper pressing wheels 12 are also arranged on the upper slide rail 5. The lower pressing wheels 11 are located inside the lower slide rail 4, and a supporting track that cooperates with the lower pressing wheels is arranged inside the lower slide rail 4. The supporting track includes a left side section and a right side section. The lengths of the left side section and the right side section are respectively half of the length of the lower slide rail 4. The left side section includes a first horizontal plate 13 and a plurality of diagonal braces 14 fixedly arranged on the front and rear vertical walls inside the lower slide rail 4; The right side section includes a plurality of columns 15 fixedly arranged on the inner bottom surface of the lower slide rail 4. A second horizontal plate 16 is fixedly arranged on the upper ends of the plurality of columns 15. The top surfaces of the first horizontal plate 13 and the second horizontal plate 16 are flush. When the upper slide rail 5 extends the first half, the lower pressing wheel 11 contacts the first horizontal plate 13, and the force on the upper slide rail 5 is small. The first horizontal plate 13 and the two vertical walls of the lower slide rail 4 can support it. When the upper slide rail 5 extends the second half and stops after the extension is completed, the lower pressing wheel 11 contacts the second horizontal plate 16. The pressure brought by the personnel sitting is directly transmitted to the bottom surface of the lower slide rail 4 through the lower pressing wheel 11, the second horizontal plate 16, and the columns 15, avoiding the bending of the front and rear two vertical walls of the lower slide rail 4 due to force; A polytetrafluoroethylene lining 17 is also arranged between the outside of the lower slide rail 4 and the upper slide rail 5 to make the sliding of the upper slide rail 5 more stable;

[0021] The upper pressing wheels 12 are located outside the lower slide rail 4, and a lower pressing track 18 that cooperates with the upper pressing wheels 12 is fixedly arranged on the lower layer plate 1 or the upper layer plate 2. The upper pressing wheels 12 include an upper wheel group and a lower wheel group. The lower pressing track 18 is provided with an upper track and a lower track that respectively cooperate with the upper wheel group and the lower wheel group. The cross-sections of the upper track and the lower track are both right-angled triangles. The two right-angled sides of the right-angled triangle respectively cooperate with the lower pressing track 18 and the upper pressing wheels 12, with high bending strength;

[0022] The seat includes a seat plate fixedly arranged on a fixing plate and a backrest hinged on one side of the seat plate. After the backrest is lifted, it can stop at a certain angle to form a seat mechanism with a backrest. The structure of the backrest hinging and lifting limit is a mature technology in the art, and its structure will not be described in detail here.

[0023] The working principle of this embodiment is as follows:

[0024] When the seat extends, control the rotation of the double-shaft motor 3. The double-shaft motor 3 drives the upper slide rail 5 to slide out by engaging with the rack 10 through the gear 8. After sliding out in place, control the double-shaft motor 3 to stop, tidy up the seat and then sit on it. When storing the seat, control the double-shaft motor 3 to rotate in the reverse direction. The double-shaft motor 3 drives the upper slide rail 5 to retract by engaging with the rack 10 through the gear 8. After retracting in place, control the double-shaft motor 3 to stop, tidy up the seat and store it. Compared with the prior art, in this embodiment, a layered extension structure is applied. The seat extends with the fixed plate located on the upper layer, and the extendable distance is long, providing a good user experience. In addition, there are various anti-bending structures such as a reinforcing rod 9, a lower pressing wheel 11, a support track, an upper pressing wheel 12, and a lower pressing track 18 arranged in the telescopic device, effectively ensuring the anti-bending strength of the telescopic device, and the structure is very reliable.

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A hierarchical retractable trunk seat mechanism, characterized in that, It includes a lower layer board, an upper layer board, a fixed board and a seat; telescopic devices are respectively arranged between the lower layer board and the upper layer board and between the upper layer board and the fixed board. The telescopic device includes a double-shaft motor and a lower slide rail and an upper slide rail that cooperate with each other. The lower slide rail is fixedly arranged on the top surface of the lower layer board or the upper layer board, and the upper slide rail is fixedly arranged on the bottom surface of the upper layer board or the bottom surface of the fixed board. A gear is arranged at the end of the output shaft of the double-shaft motor, and the gear is located in the lower slide rail. A reinforcing rod with an oval cross-section is arranged along the length direction in the upper slide rail, and a rack that cooperates with the gear is fixedly arranged on the lower side of the reinforcing rod; a plurality of lower pressing wheels and a plurality of upper pressing wheels are also arranged on the upper slide rail. The lower pressing wheels are located in the lower slide rail and a supporting track that cooperates with the lower pressing wheels is arranged in the lower slide rail. The upper pressing wheels are located outside the lower slide rail and a lower pressing track that cooperates with the upper pressing wheels is fixedly arranged on the lower layer board or the upper layer board; the seat includes a seat board fixedly arranged on the fixed board and a back board hinged to one side of the seat board.

2. The hierarchical retractable trunk seat mechanism according to claim 1, characterized in that, The lower slide rail is fixed on the top surface of the lower layer board or the upper layer board by bolts, and the upper slide rail is also fixed on the bottom surface of the upper layer board or the bottom surface of the fixed board by bolts.

3. The hierarchical retractable trunk seat mechanism according to claim 1, wherein, Two reinforcing rods are arranged in parallel. The length of the reinforcing rods is equal to the length of the upper slide rail. A bottom board is fixedly arranged on the lower sides of the two reinforcing rods together, and the rack is fixedly arranged on the bottom board.

4. The hierarchical retractable trunk seat mechanism according to claim 1, characterized in that, The supporting track includes a left side section and a right side section. The left side section includes a first horizontal board and a plurality of diagonal braces fixedly arranged on the front and rear vertical walls inside the lower slide rail; the right side section includes a plurality of columns fixedly arranged on the inner bottom surface of the lower slide rail, and a second horizontal board is fixedly arranged on the upper ends of the plurality of columns together. The top surfaces of the first horizontal board and the second horizontal board are flush.

5. The hierarchical retractable trunk seat mechanism according to claim 1, characterized in that, The upper pressing wheel includes an upper wheel group and a lower wheel group, and an upper track and a lower track that cooperate with the upper wheel group and the lower wheel group respectively are arranged on the lower pressing track.

6. The hierarchical retractable trunk seat mechanism according to claim 5, characterized in that, The cross-sections of the upper track and the lower track are both right-angled triangles, and the two right-angled sides of the right-angled triangle cooperate with the lower pressing track and the upper pressing wheel respectively.

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