Connecting rod jacking mechanism with self-locking function

Abstract

The connecting rod jacking mechanism with the self-locking function comprises a fixed rod, a movable rod, a long rocker, a short rocker, a long connecting rod, a short connecting rod, a hook lock and an electric supporting rod, the lower ends of the long rocker and the short rocker are hinged to one end and the middle of the fixed rod respectively, and the upper ends of the long connecting rod and the short connecting rod are hinged to the two ends of the movable rod respectively. The upper end of the long rocker is hinged to the lower end of the short connecting rod, the upper end of the short rocker is hinged to the lower end of the long connecting rod, and the middle of the long rocker is crossed and hinged to the middle of the long connecting rod; the middle of the hook lock is hinged to the upper end of the long rocker, two self-locking hooks are arranged on the outer side of the hook lock in a central symmetry mode, and self-locking buckles matched with the two self-locking hooks are arranged at the positions, corresponding to the hook lock, of the fixed rod and the movable rod respectively after the fixed rod and the movable rod are stored. One end of the electric supporting rod is hinged outside the fixing rod, and the other end is hinged with one end of the hook lock. According to the technical scheme, the fixed rod and the movable rod are automatically hooked and locked after the six-connecting-rod jacking mechanism is stored through the action of the hook lock of the six-connecting-rod jacking mechanism, and accidental opening of the jacking mechanism is avoided.

Description

Technical Field

[0001] This utility model relates to the field of automotive equipment technology, specifically to a self-locking linkage lifting mechanism. Background Technology

[0002] Cars are widely used as a means of transportation in modern society. During long-distance driving, people need to stay overnight and rest. In addition to finding accommodation, they may choose to carry a tent or make do with sleeping in the car. Tents take up a lot of space in the car, are relatively troublesome to assemble, and are not suitable for setting up a tent in all environments or at all times.

[0003] The existing lifting mechanism is difficult to self-lock in the closed state, and locking accessories are needed to achieve locking, which increases the flexibility of the lifting mechanism. However, the accessories may also scratch the tarpaulin.

[0004] Chinese invention patent application number 202411569622.6 discloses a roof-mounted tent lifting device, including a lifting assembly and a guide assembly. The lifting assembly and guide assembly are located on the side of the vehicle and connect the vehicle to the roof. This invention achieves angled lifting of the roof-mounted tent by cooperating with the lifting assembly and guide assembly, providing height space at the rear and increasing space utilization. A locking block and latch ensure complete locking of the lifting mechanism. During folding, it uses an actuator for braking and a locking groove and latch for locking, resulting in a relatively complex accessory structure. Utility Model Content

[0005] The purpose of this invention is to provide a self-locking linkage lifting mechanism that utilizes the structure of the self-locking hinge itself to achieve reliable self-locking. The mechanism is simple in structure and has a good locking effect.

[0006] To achieve the above objectives, this utility model is specifically implemented through the following technical solution:

[0007] A self-locking linkage lifting mechanism includes a fixed rod, a movable rod, a long rocker arm, a short rocker arm, a long connecting rod, a short connecting rod, a hook lock, and an electric support rod. The lower ends of the long rocker arm and the short rocker arm are respectively hinged to one end and the middle of the fixed rod. The upper ends of the long connecting rod and the short connecting rod are respectively hinged to both ends of the movable rod. The upper end of the long rocker arm is hinged to the lower end of the short connecting rod, the upper end of the short rocker arm is hinged to the lower end of the long connecting rod, and the middle of the long rocker arm and the middle of the long connecting rod intersect and are hinged.

[0008] The hook lock has a hinged end on one side, and two self-locking hooks are symmetrically arranged at both ends. The middle of the hook lock is hinged to the upper end of the long rocker arm. The fixed rod and the movable rod are respectively equipped with self-locking buckles that cooperate with the two self-locking hooks after they are stored and locked. One end of the electric support rod is hinged to the other end of the fixed rod, and the other end is hinged to the hinged end of the hook lock.

[0009] Furthermore, two limiting plates are fixed to the upper end of the short rocker arm, and the middle part of the electric support rod is placed between the two limiting plates.

[0010] Furthermore, a hook-lock stop is provided between the upper end and the middle of the long rocker arm.

[0011] Compared with the prior art, the technical solution of this utility model uses a hook lock to automatically hook and lock the fixed rod and the movable rod after the linkage lifting mechanism is stored, so as to prevent the lifting mechanism from being opened accidentally; when opening, the electric support rod extends to support it, and the hook lock automatically disengages from the self-locking buckle of the fixed rod and the movable rod, so as to easily open it. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the linkage lifting mechanism of this utility model;

[0013] Figure 2 This is a schematic diagram of the linkage lifting mechanism of this utility model in its stowed state;

[0014] Figure 3 This is a schematic diagram of the hook lock in this utility model;

[0015] Figure 4 This is a structural schematic diagram of a folding tent according to an embodiment of the present invention.

[0016] In the diagram, 1-fixed rod; 2-movable rod; 3-long rocker arm; 31-hook lock stop; 4-short rocker arm; 41-limiting rod; 5-long connecting rod; 6-short connecting rod; 7-hook lock; 71-self-locking hook; 72-hinged end; 8-electric support rod; 9-self-locking buckle; 10-tent frame. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0019] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0020] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] like Figures 1 to 4 As shown, this utility model discloses a self-locking linkage lifting mechanism, comprising a fixed rod 1, a movable rod 2, a long rocker arm 3, a short rocker arm 4, a long connecting rod 5, a short connecting rod 6, a hook lock 7, and an electric support rod 8. The lower ends of the long rocker arm 3 and the short rocker arm 4 are respectively hinged to one end and the middle of the fixed rod 1. The upper ends of the long connecting rod 5 and the short connecting rod 6 are respectively hinged to both ends of the movable rod 2. The upper end of the long rocker arm 3 is hinged to the lower end of the short connecting rod 6, and the upper end of the short rocker arm 4 is hinged to the lower end of the long connecting rod 5. The middle part of the long rocker arm 3 crosses and is hinged to the middle part of the long connecting rod 5, thereby forming a six-bar linkage mechanism.

[0022] A hinge end 72 is provided on one side of the hook lock 7, and two self-locking hooks 71 are symmetrically arranged on the outer center of the hook lock 7. The middle part of the hook lock 7 is hinged to the upper end of the long rocker arm 3. One end of the electric support rod 8 is hinged to the other end of the fixed rod 1, and the other end is hinged to the hinge end 72 of the hook lock 7. The long rocker arm 3 is pushed up by the electric push of the hook lock 7. After the fixed rod 1 and the movable rod 2 are stored, self-locking buckles 9 are respectively provided at the hook lock 7 to cooperate with the two self-locking hooks 71. After the connecting rod lifting mechanism is stored, the hook lock 7 hooks with the self-locking buckles 9 to achieve self-locking.

[0023] The lifting mechanism comprises a fixed rod 1, a movable rod 2, a long rocker arm 3, a short rocker arm 4, a long connecting rod 5, and a short connecting rod 6, forming a six-bar linkage that enables opening, closing, and storage. When the lifting mechanism is open, the telescopic electric support rod 8 pushes the hook lock 7 to rotate and disengage from the self-locking buckles 9 of the fixed rod 1 and the movable rod 2, ending the locking state. The electric support rod 8 then pushes the long rocker arm 3 to gradually lift and disengage from the fixed rod 1, thereby lifting the movable rod 2 through the connecting rod, forming the open state. When the lifting mechanism is closed, the electric support rod 8 gradually retracts, pulling back the hook lock 7 and the long rocker arm 3. The rotation of the hook lock 7 causes the two self-locking hooks 71 to gradually move in an up-and-down position, corresponding to the self-locking buckles 9 on the movable rod 2 and the fixed rod 1 respectively. Upon completion of closure, the two self-locking hooks 71 hook onto the self-locking buckles 9 of the fixed rod 1 and the movable rod 2 respectively, forming a lock to prevent accidental opening.

[0024] Preferably, two limiting plates 41 are fixed to the upper end of the short rocker arm 4, and the middle part of the electric support rod is placed inside the two limiting plates to prevent the electric support rod 8 from shifting left and right.

[0025] Preferably, a hook-lock block 31 is provided between the upper end and the middle of the long rocker arm 3. When the lifting mechanism is pushed to open to the position, the hook-lock block 3 blocks the hook lock 7 to prevent it from rotating excessively and becoming impossible to store.

[0026] The linkage lifting mechanism of this utility model can be used for folding tents on the roof of a vehicle. The folding tent includes a tent fabric, a tent frame 10, and two sets of linkage lifting mechanisms as described above. The tent fabric is fixed to the top surface and all sides of the tent frame. The movable rods 2 of the two sets of linkage lifting mechanisms are symmetrically installed on the bottom surface of the tent frame 10. The fixed rods 1 of the linkage lifting mechanism are installed on the roof of the vehicle. The tent fabric is installed on the tent frame 10. The opening and closing of the roof tent is achieved through the opening and closing action of the linkage lifting mechanism.

[0027] The specific embodiments described herein are merely illustrative of the invention and are not intended to limit it. Those skilled in the art can make modifications to these embodiments without contributing any inventive step after reading this specification, but such modifications are protected by patent law as long as they fall within the scope of the claims of this invention.

Claims

1. A self-locking linkage lifting mechanism, characterized in that, It includes a fixed rod (1), a movable rod (2), a long rocker arm (3), a short rocker arm (4), a long connecting rod (5), a short connecting rod (6), a hook lock (7), and an electric support rod (8). The lower ends of the long rocker arm and the short rocker arm are respectively hinged to one end and the middle of the fixed rod. The upper ends of the long connecting rod and the short connecting rod are respectively hinged to both ends of the movable rod. The upper end of the long rocker arm is hinged to the lower end of the short connecting rod. The upper end of the short rocker arm is hinged to the lower end of the long connecting rod. The middle part of the long rocker arm and the middle part of the long connecting rod intersect and are hinged. A hinge end (72) is provided on one side of the hook lock, and two self-locking hooks (71) are symmetrically arranged at both ends. The middle part of the hook lock is hinged to the upper end of the long rocker arm. One end of the electric support rod is hinged to the other end of the fixed rod, and the other end of the rod is hinged to the hinge end (72) of the hook lock. Self-locking buckles (9) are respectively provided on the fixed rod and the movable rod to lock and cooperate with the two self-locking hooks after they are stored.

2. The self-locking linkage lifting mechanism according to claim 1, characterized in that, Two limiting plates (41) are fixed at the upper end of the short rocker arm, and the middle part of the electric support rod is placed between the two limiting plates.

3. The self-locking linkage lifting mechanism according to claim 1, characterized in that, A hook-lock stop (31) is provided between the upper end and the middle of the long rocker arm.

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