Lifting frame for trunk seat mechanism

Abstract

The utility model discloses a lifting frame for a seat mechanism of a trunk. The lifting frame comprises a seat box, a bottom frame and a locking mechanism, the rear side of the seat box is hinged to the bottom frame, and a supporting rod is arranged between the seat box and the bottom frame in a matched mode. The locking mechanism comprises a lock tongue fixedly arranged on the seat box and a lock head arranged on the bottom frame in a left-right sliding mode, a first hole is formed in the lock tongue, a manual crankshaft and a positioning plate are arranged on the bottom frame, an elastic connecting rod is hinged to the manual crankshaft, the lock head is hinged to one end of the elastic connecting rod, and a conical block is fixedly arranged on the lock head. A second hole is formed in the positioning plate, the diameter of the second hole is larger than that of the first hole, and the second hole and the first hole are both matched with the conical block. A positioning mechanism is arranged between the manual crankshaft and the bottom frame in a matched mode. The seat box is fastened and limited through the locking mechanism, the seat box cannot swing up and down after limiting is completed, meaningless reciprocating stretching and retracting of the supporting rod are avoided, and the service life of the supporting rod is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of automobile supplies, in particular to a lifting frame for a trunk seat mechanism. Background Art

[0002] Some large and medium-sized luxury SUV models have folding storage seats installed in the trunk. Their function is to provide a relatively open seating and resting space in the wild and other scenarios. The current mainstream design on the market is to lower the folding seats and hide them in the box. The rear side of the box is hinged to the trunk floor and is equipped with a hydraulic strut to facilitate lifting the box and taking the on-board tools or spare tire. In the actual production application process, it was found that the locking between the existing seat box and the trunk is not strict and has a small clearance, which makes the seat box or slightly swing and displace during the driving of the vehicle. As a result, the hydraulic strut is continuously extended and reciprocated with a short stroke, which greatly damages the life of the hydraulic strut and has a large room for improvement. Utility Model Content

[0003] In view of the problems existing in the background technology, the purpose of the utility model is to provide a lifting frame for a trunk seat mechanism, which effectively solves the problems existing in the background technology.

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

[0005] A lifting frame for a trunk seat mechanism comprises a seat box, a bottom frame and a locking mechanism; the rear side of the seat box is hinged on the bottom frame and a support rod is arranged between the seat box and the bottom frame; the locking mechanism comprises a locking tongue fixedly arranged on the seat box and a locking head slidable left and right and arranged on the bottom frame, the locking tongue is provided with a first hole, the bottom frame is provided with a manual crankshaft and a positioning plate, the manual crankshaft is hinged with an elastic connecting rod, the locking head is hinged at one end of the elastic connecting rod and a conical block is fixed on the locking head, the positioning plate is provided with a second hole, the second hole has a diameter larger than the first hole, and the second hole and the first hole are both aligned with the conical block The manual crankshaft and the bottom frame are matched with each other; a positioning mechanism is matched between the manual crankshaft and the bottom frame, and the positioning mechanism includes a T-bar slidably arranged at the front end of the manual crankshaft, the T-bar is provided with a key, the manual crankshaft is provided with a keyway, the T-bar is also fixed with a card block, the manual crankshaft is provided with a card block clearance hole, an annular groove for the card block to enter is provided in the bottom frame, and two mutually perpendicular card grooves are provided in the annular groove, the card block cooperates with the card groove, when the card block is inserted into one of the card grooves, the conical block comes out of the first hole, and when the card block is inserted into the other card groove, the conical block is inserted into the first hole.

[0006] Furthermore, the support rod is a hydraulic support rod.

[0007] Furthermore, the number of the lock tongue, the lock head and the elastic connecting rod are two each.

[0008] Furthermore, the elastic connecting rod includes a first section, a middle section and a tail section, the first section is hinged on the manual crankshaft, the middle section is fixed on the first section, one end of the tail section can be slidably inserted in the middle section and a compression spring is provided in the middle section to make the tail section extend out of the middle section, and the lock head is hinged on the other end of the tail section.

[0009] Furthermore, a horizontal guide slot is provided in the bottom frame, and a sliding block matching with the horizontal guide slot is provided on the lock head.

[0010] Furthermore, a compression spring is arranged in the block yield hole, and the compression spring enables the block to move backwards.

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

[0012] In the utility model, the seat box is fastened and limited by a locking mechanism. After the limiting is completed, the seat box will not swing up and down, thus avoiding meaningless reciprocating extension and contraction of the support rod, effectively ensuring the service life of the support rod, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a left side view of an embodiment of the utility model;

[0014] Figure 2 This is a front structural diagram of the locking mechanism in the embodiment of the utility model;

[0015] Figure 3 It is a right side structural schematic diagram of the positioning mechanism in the embodiment of the utility model. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0017] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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.

[0018] like Figure 1-3 As shown, a lifting frame for a trunk seat mechanism described in this embodiment includes a seat box 1, a bottom frame 2 and a locking mechanism; the rear side of the seat box 1 is hinged on the bottom frame 2 and a support rod 3 is provided between the seat box 1 and the bottom frame 2, the support rod 3 is a hydraulic support rod, the number of the hydraulic support rods is two, and they are symmetrically arranged on the left and right sides of the seat box 1, the bottom of the shell of the hydraulic support rod is hinged on the bottom frame 2, and the end of the piston rod of the hydraulic support rod is hinged on the seat box 1;

[0019] The locking mechanism includes a lock tongue 4 fixed on the seat box 1 and a lock head 5 which can slide left and right and is arranged on the bottom frame 2. Specifically, a horizontal guide slot 6 is arranged in the bottom frame 2, and a slider matching the horizontal guide slot 6 is arranged on the lock head 5. The number of the lock tongue 4 and the lock head 5 is two, and a first hole 7 is arranged on the lock tongue 4. A manual crankshaft 8 and a positioning plate 9 are arranged on the bottom frame 2. The manual crankshaft 8 is located in the middle of the front side of the bottom frame 2. An elastic connecting rod is hinged on the manual crankshaft 8. The number of the elastic connecting rods is also two. The elastic connecting rod includes a first section 10 and a middle section 1 1 and tail section 12, the first section 10 is hinged on the manual crankshaft 8, the middle section 11 is fixed on the first section 10, one end of the tail section 12 is slidably inserted in the middle section 11 and a compression spring is arranged in the middle section 11 to make the tail section 12 extend out of the middle section 11, the lock head 5 is hinged on the other end of the tail section 12 and a tapered block 13 is fixed on the lock head 5, a second hole 14 is arranged on the positioning plate 9, the second hole 14 has a diameter larger than the first hole 7 and the second hole 14 and the first hole 7 are matched with the tapered block 13, and the tapered block 13 is pressed against the inner walls of the first hole 7 and the second hole 14 at the same time after entering into position;

[0020] A positioning mechanism is provided between the manual crankshaft 8 and the bottom frame 2, and the positioning mechanism includes a T-bar 15 which is slidably and retractably arranged at the front end of the manual crankshaft 8, a key 16 is provided on the T-bar 15, and a keyway is provided on the manual crankshaft 8. No relative rotation occurs between the T-bar 15 and the manual crankshaft 8, and a clamping block 17 is also fixed on the T-bar 15, and a clamping block clearance hole 18 is provided on the manual crankshaft 8, so that the clamping block 17 can move forward and backward. Preferably, a compression spring is provided in the clamping block clearance hole 18, and the compression spring moves the clamping block 17 backward, and an annular groove 19 for the clamping block 17 to enter is provided in the bottom frame 2, and two mutually perpendicular clamping grooves 20 are provided in the annular groove 19, and the clamping block 17 cooperates with the clamping grooves 20, and when the clamping block 17 is inserted into one of the clamping grooves 20, the conical block 13 escapes from the first hole 7, and when the clamping block 17 is inserted into the other clamping groove 20, the conical block 13 is inserted into the first hole 7.

[0021] The working principle of this embodiment is:

[0022] When locking the seat box 1, the seat box 1 is pressed down, the first hole 7 on the lock tongue is aligned with the second hole 14 on the positioning plate 9, the T-bar 15 is pulled forward and then rotated 90° to the left, the clamping block 17 is rotated 90° in the annular groove 19 and aligned with the clamping groove 20, the T-bar 15 is pushed in so that the clamping block 17 enters the clamping groove 20, and the manual crankshaft 8 cannot rotate any more; the manual crankshaft 8 is driven to rotate during the rotation of the T-bar 15, and the elastic connecting rod pushes the lock head 5 and the conical block 13 to successively enter the second hole 14 and the first hole 7 until they are tightly pressed, at which point the seat box 1 is effectively fixed and cannot swing up and down, thus avoiding the meaningless reciprocating extension and contraction of the support rod 3, and effectively ensuring the service life of the support rod 3;

[0023] When unlocking, first pull out the T-bar 15 and then rotate it 90° in the opposite direction to make the block 17 enter another slot 20. During the rotation, the manual crankshaft 8 drives the conical block 13 to escape from the first hole 7. The seat box 1 can be lifted up under the action of the support rod 3, making it convenient for people to take the spare tire or other on-board tools under the seat box 1.

[0024] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent 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 to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. A lifting frame for a trunk seat mechanism, characterized in that: It comprises a seat box, a bottom frame and a locking mechanism; the rear side of the seat box is hinged on the bottom frame and a support rod is arranged between the seat box and the bottom frame; the locking mechanism comprises a locking tongue fixed on the seat box and a locking head slidable left and right on the bottom frame, the locking tongue is provided with a first hole, the bottom frame is provided with a manual crankshaft and a positioning plate, the manual crankshaft is hinged with an elastic connecting rod, the locking head is hinged on one end of the elastic connecting rod and a conical block is fixed on the locking head, the positioning plate is provided with a second hole, the diameter of the second hole is larger than the first hole, and the second hole and the first hole both cooperate with the conical block; A positioning mechanism is provided between the manual crankshaft and the bottom frame, and the positioning mechanism includes a T-bar slidably arranged at the front end of the manual crankshaft, the T-bar is provided with a key, the manual crankshaft is provided with a keyway, the T-bar is also fixed with a card block, the manual crankshaft is provided with a card block clearance hole, an annular groove for the card block to enter is provided in the bottom frame, and two mutually perpendicular card grooves are provided in the annular groove. The card block cooperates with the card slots, and when the card block is inserted into one of the card slots, the conical block comes out of the first hole, and when the card block is inserted into the other card slot, the conical block is inserted into the first hole.

2. A lifting frame for a trunk seat mechanism according to claim 1, characterized in that: The support rod is a hydraulic support rod.

3. The lifting frame for a trunk seat mechanism according to claim 1, characterized in that: The number of the lock tongue, the lock head and the elastic connecting rod are all two.

4. A lifting frame for a trunk seat mechanism according to claim 1 or 3, characterized in that: The elastic connecting rod includes a first section, a middle section and a tail section, the first section is hinged on the manual crankshaft, the middle section is fixed on the first section, one end of the tail section is slidably inserted in the middle section and a compression spring is arranged in the middle section to make the tail section extend out of the middle section, and the lock head is hinged on the other end of the tail section.

5. The lifting frame for a trunk seat mechanism according to claim 4, characterized in that: A horizontal guide slot is provided in the bottom frame, and a sliding block matched with the horizontal guide slot is provided on the lock head.

6. The lifting frame for a trunk seat mechanism according to claim 1, characterized in that: A compression spring is arranged in the block yield hole, and the compression spring enables the block to move backwards.

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