An auxiliary up-and-down device for a car's trunk

Abstract

The object of the present invention is to solve the problem of loading and unloading items in the trunk of an automobile, and discloses an auxiliary up-and-down device for an automobile trunk, which includes a first lifting mechanism, a second lifting mechanism, a cross plate and a mounting plate. Ventilation boxes are symmetrically bonded to the left and right sides of the cross plate. Suction cups are installed on the upper surface of the ventilation boxes. A sleeve is fixedly installed in front of the ventilation boxes. A plug rod is sleeved inside the sleeve. A top plate is fixedly installed at the outer end of the plug rod. A first airbag is fixedly installed on the outer side of the lower surface of the ventilation box. A first lifting mechanism is arranged below the ventilation box. A hinge is installed between the first lifting mechanism and the ventilation box. The first lifting mechanism includes a cover tube inside which a sliding rod is sleeved. A first spiral spring is sleeved outside the sliding rod. A support plate is fixedly installed at the lower end of the sliding rod. The present invention uses two groups of lifting mechanisms to lift small and large items labor-savingly, replacing manual loading and unloading of items, which is more labor-saving and convenient.

Description

Technical Field

[0001] The present invention relates to the field of automotive parts, and particularly to an auxiliary lifting device for a motor vehicle's rear trunk. Background Art

[0002] In a motor vehicle's rear trunk, generally, suitcases or boxes of food are placed. Some light items can be moved easily, but for heavier items, it is quite strenuous to lift them into the trunk. For some small boxes without handles, it is inconvenient to place them in the trunk because there is no place to lift. Since the opening of the trunk is relatively small and the inside is relatively deep, it is inconvenient to place items inside the trunk, and the space of the trunk cannot be fully utilized. Therefore, the inventor has invented an auxiliary lifting device for a motor vehicle's rear trunk to solve the problem of loading and unloading items in the motor vehicle's rear trunk. Summary of the Invention

[0003] The object of the present invention is to solve the deficiencies of the prior art and provide an auxiliary lifting device for a motor vehicle's rear trunk.

[0004] The present invention is achieved through the following technical solutions:

[0005] An auxiliary up-and-down device for a car trunk, comprising a first lifting mechanism, a second lifting mechanism, a cross plate and a mounting plate. The left and right sides of the cross plate are symmetrically bonded with ventilation boxes. A suction cup is installed on the upper surface of the ventilation box. A sleeve is fixedly installed in front of the ventilation box. A plug rod is sleeved inside the sleeve. A top plate is fixedly installed at the outer end of the plug rod. A first airbag is fixedly installed outside the lower surface of the ventilation box. A first lifting mechanism is arranged below the ventilation box. A hinge is installed between the first lifting mechanism and the ventilation box. The first lifting mechanism includes a cover tube inside. A sliding rod is sleeved inside the cover tube. A first spiral spring is sleeved outside the sliding rod. A support plate is fixedly installed at the lower end of the sliding rod. An expansion rod is sleeved on the side wall of the cover tube. A second fastening screw is installed between the expansion rod and the cover tube. A motor is fixedly installed at the outer end of the expansion rod. A first rotating shaft is installed on the motor shaft of the motor. A first rotating cylinder is fixedly sleeved on the surface of the first rotating shaft. A second rotating cylinder is arranged below the first rotating cylinder. A conveyor belt is sleeved between the first rotating cylinder and the second rotating cylinder. A second rotating shaft is sleeved inside the second rotating cylinder. Positioning frames are symmetrically sleeved on the surface of the second rotating shaft. A motor is installed on the second rotating shaft. An elastic cord is connected to the lower surface of the mounting plate. A stepping ring is tied to the lower end of the elastic cord. A first frame is fixedly installed below the cross plate. A support shaft is sleeved inside the first frame. A first fastening screw is installed between the support shaft and the first frame. A support cylinder is sleeved on the surface of the support shaft. A towing rope is wound around the support cylinder. The lower end of the towing rope is connected to a second lifting mechanism. The second lifting mechanism includes a clamping frame, a first sliding frame and a second sliding frame. The first sliding frame and the second sliding frame are respectively arranged on the left and right sides of the clamping frame. Slide frames are installed between the first sliding frame and the second sliding frame and the clamping frame. An expansion airbag is sleeved inside the slide frame. A second spiral spring is sleeved on the inner side of the surface of the slide frame. Second airbags are symmetrically installed on the inner side surface of the clamping frame. A positioning block is fixedly installed on the top surface of the clamping frame. A pull rope is connected between the clamping frame and the towing rope. A second connecting ring is sleeved outside the first sliding frame. A first connecting ring is sleeved outside the second sliding frame.

[0006] Preferably, the cross plate is made of transparent glass.

[0007] Preferably, the mounting plate, the elastic cord and the stepping ring form a pressing assembly. The elastic cord is made of a flat belt and uniformly sleeved with rubber bands inside.

[0008] Preferably, the ventilation box is a hollow box structure. The ventilation box is respectively communicated with the suction cup and the first airbag. Both the suction cup and the first airbag are made of rubber materials.

[0009] Preferably, the expansion rod is of an L-shaped structure. The sliding rod is slidably matched with the cover tube.

[0010] Preferably, the back surface of the conveyor belt is made of polyester material.

[0011] Preferably, the positioning block is slidably engaged with the first carriage, the second connecting ring is fixedly connected to the second carriage, the second connecting ring is slidably engaged with the first carriage, the first connecting ring is fixedly connected to the first carriage, and the first connecting ring is slidably engaged with the second carriage.

[0012] Preferably, the second airbag communicates with the telescopic airbag, and the sliding frame is slidably engaged with the clamping frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] Through the setting of the second lifting mechanism, by the dislocation of the first carriage and the second carriage, the inflation and deflation of the second airbag can be controlled, and the second airbag is used to stably clamp the article. The rotation of the support cylinder can lift the second lifting mechanism, and the second lifting mechanism can be used to lift small articles into the trunk. Through the setting of the first lifting mechanism, the conveyor belt can be used to lift large articles such as suitcases. The transmission of the conveyor belt is more labor-saving, and through the limitation of the elastic cord, it plays a role in blocking the article, making it more stable when lifting the article upward. By setting the back of the conveyor belt as a polyester material, it prevents the abrasive surface of the conveyor belt from wearing the trunk of the car, reduces the friction between the conveyor belt and the car, and protects the car. Through the cooperation of the sliding rod and the cover tube, and the setting of the first spiral spring, it can play a role in supporting the trunk lid. By setting the cross plate as a transparent glass material, it does not affect the line of sight of the rear window of the car. Through two groups of lifting mechanisms, the present invention can lift small and large articles in a labor-saving manner, replacing manual loading and unloading of articles, which is more labor-saving and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the present invention.

[0016] Figure 2 It is an enlarged view of the first lifting mechanism of the present invention.

[0017] Figure 3 It is an enlarged view of the second lifting mechanism of the present invention.

[0018] Figure 4 It is a schematic diagram of the cooperation between the conveyor belt and the trunk of the car of the present invention.

[0019] Description of reference numerals: A, the first lifting mechanism; B, the second lifting mechanism; 1, the support shaft; 2, the first fastening screw; 3, the support cylinder; 4, the towing rope; 5, the mounting plate; 6, the elastic cord; 7, the first frame; 8, the cross plate; 9, the suction cup; 10, the ventilation box; 11, the first airbag; 12, the insertion rod; 13, the top plate; 14, the sleeve; 15, the hinge; 16, the step ring; 17, the cover pipe; 18, the telescopic rod; 19, the motor; 20, the first rotating shaft; 21, the first rotating cylinder; 22, the conveyor belt; 23, the second rotating cylinder; 24, the second rotating shaft; 25, the support rod; 26, the positioning frame; 27, the support plate; 28, the sliding rod; 29, the first spiral spring; 30, the second fastening screw; 31, the positioning block; 32, the first sliding carriage; 33, the first connecting ring; 34, the second connecting ring; 35, the pull cord; 36, the second sliding carriage; 37, the clamping frame; 38, the sliding frame; 39, the telescopic airbag; 40, the second spiral spring; 41, the second airbag. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0022] An auxiliary up-and-down device for a car trunk, comprising a first lifting mechanism A, a second lifting mechanism B, a cross plate 8 and a mounting plate 5. Symmetrically adhered to the left and right sides of the cross plate 8 are ventilation boxes 10. Mounted on the upper surface of the ventilation box 10 is a suction cup 9. Fixedly installed in front of the ventilation box 10 is a sleeve 14. Inside the sleeve 14 is sleeved a plug rod 12. Fixedly installed at the outer end of the plug rod 12 is a top plate 13. Fixedly installed on the outer side of the lower surface of the ventilation box 10 is a first airbag 11. Below the ventilation box 10 is provided with the first lifting mechanism A. Between the first lifting mechanism A and the ventilation box 10 is installed a hinge member 15. The first lifting mechanism A internally includes a cover tube 17. Inside the cover tube 17 is sleeved a sliding rod 28. Outside the sliding rod 28 is sleeved a first spiral spring 29. Fixedly installed at the lower end of the sliding rod 28 is a support plate 27. Sleeved on the side wall of the cover tube 17 is a telescopic rod 18. Between the telescopic rod 18 and the cover tube 17 is installed a second fastening screw 30. Fixedly installed at the outer end of the telescopic rod 18 is a motor 19. Installed on the motor shaft of the motor 19 is a first rotating shaft 20. Fixedly sleeved on the surface of the first rotating shaft 20 is a first rotating cylinder 21. Below the first rotating cylinder 21 is provided with a second rotating cylinder 23. Between the first rotating cylinder 21 and the second rotating cylinder 23 is sleeved a conveyor belt 22. Inside the second rotating cylinder 23 is sleeved a second rotating shaft 24. Symmetrically sleeved on the surface of the second rotating shaft 24 are positioning frames 26. Installed on the second rotating shaft 24 is a motor. Connected to the lower surface of the mounting plate 5 is an elastic cord 6. Tied to the lower end of the elastic cord 6 is a stepping ring 16. Fixedly installed below the cross plate 8 is a first frame 7. Inside the first frame 7 is sleeved a support shaft 1. Between the support shaft 1 and the first frame 7 is installed a first fastening screw 2. Sleeved on the surface of the support shaft 1 is a support cylinder 3. Wound around the support cylinder 3 is a traction rope 4. The lower end of the traction rope 4 is connected to the second lifting mechanism B. The second lifting mechanism B internally includes a clamping frame 37, a first sliding frame 32 and a second sliding frame 36. The first sliding frame 32 and the second sliding frame 36 are respectively arranged on the left and right sides of the clamping frame 37. Between the first sliding frame 32 and the second sliding frame 36 and the clamping frame 37 are installed sliding frames 38. Inside the sliding frames 38 are sleeved telescopic airbags 39. Inside the inner side of the surface of the sliding frames 38 are sleeved second spiral springs 40. Symmetrically installed on the inner side surface of the clamping frame 37 are second airbags 41. Fixedly installed on the top surface of the clamping frame 37 is a positioning block 31. Between the clamping frame 37 and the traction rope 4 is connected a pull rope 35. Outside the first sliding frame 32 is sleeved a second connecting ring 34. Outside the second sliding frame 36 is sleeved a first connecting ring 33.

[0023] The cross plate 8 is made of transparent glass.

[0024] The mounting plate 5, the elastic cord 6 and the stepping ring 16 form a pressing assembly. The elastic cord 6 is made of a flat belt and is evenly sleeved with rubber bands inside.

[0025] The ventilation box 10 has a hollow box structure. The ventilation box 10 communicates with the suction cup 9 and the first airbag 11 respectively. Both the suction cup 9 and the first airbag 11 are made of rubber material.

[0026] The telescopic rod 18 has an L-shaped structure, and the sliding rod 28 is slidably matched with the cover tube 17.

[0027] The back surface of the conveyor belt 22 is made of polyester material.

[0028] The positioning block 31 is slidably matched with the first sliding frame 32. The second connecting ring 34 is fixedly connected to the second sliding frame 36. The second connecting ring 34 is slidably matched with the first sliding frame 32. The first connecting ring 33 is fixedly connected to the first sliding frame 32. The first connecting ring 33 is slidably matched with the second sliding frame 36.

[0029] The second airbag 41 communicates with the telescopic airbag 39, and the sliding frame 38 is slidably matched with the clamping frame 37.

[0030] Operation steps: First, install and fix the device. For some SUVs, the trunk lid is made of glass. Here, the cross plate 8 is set to be made of glass, which will not affect the line of sight. First, adsorb the suction cup 9 on the surface of the trunk lid, and adjust the insertion rod 12. The insertion rod 12 and the sleeve 14 are in threaded fit, so that the top plate 13 can be used for support to further fix the device. Fix the mounting plate 5 at the top of the trunk, and fix the positioning frame 26 of the first lifting mechanism A at the position of the vehicle chassis, so that the conveyor belt 22 is placed on the edge of the trunk. By adjusting the second fastening screw 30, the direction of the telescopic rod 18 can be adjusted. Extend the telescopic rod 18 into the vehicle trunk. The conveyor belt 22 extending into the trunk is horizontally arranged. When loading large luggage into the trunk, make the luggage fit with the conveyor belt 22, and place the elastic cord 6 on the surface of the luggage. The operator steps on the pedal ring 16 to tighten the luggage with the elastic cord 6 to make the luggage fit with the conveyor belt 22. Drive the motor 19, and the conveyor belt 22 will rotate to drive the luggage to be lifted and lifted into the trunk. When placing some small items in the trunk, use the second lifting mechanism B for lifting. First, slide the first sliding frame 32 and the second sliding frame 36 outwards, which will stretch the telescopic airbag 39. Place the item in the clamping frame 37. At this time, the second airbag 41 is not inflated. After the item is clamped, release the first sliding frame 32 and the second sliding frame 36, and the elastic force of the second spiral spring 40 will pull the sliding frame 38 to squeeze the telescopic airbag 39 and inflate the second airbag 41 to further clamp the item. Then, by rotating the support cylinder 3, the item can be lifted, and the first fastening screw 2 can position the lifted item. After the item is lifted, it is more convenient to neatly place it in the trunk.

[0031] This specific embodiment is only an interpretation of the present invention and not a limitation thereof. After reading this specification, those skilled in the art may make modifications to this embodiment that do not contribute creatively as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An auxiliary up-and-down device for an automobile trunk, comprising a first lifting mechanism A, a second lifting mechanism (B), a cross plate (8) and a mounting plate (5), characterized in that: On the left and right sides of the horizontal plate (8), ventilation boxes (10) are symmetrically adhered. On the upper surface of the ventilation box (10), suction cups (9) are installed. In front of the ventilation box (10), a sleeve (14) is fixedly installed. Inside the sleeve (14), a plug rod (12) is sleeved. At the outer end of the plug rod (12), a top plate (13) is fixedly installed. On the outer side of the lower surface of the ventilation box (10), a first airbag (11) is fixedly installed. Below the ventilation box (10), a first lifting mechanism (A) is provided. Between the first lifting mechanism (A) and the ventilation box (10), a hinge (15) is installed. Inside the first lifting mechanism (A), it includes a cover tube (17). Inside the cover tube (17), a sliding rod (28) is sleeved. Outside the sliding rod (28), a first spiral spring (29) is sleeved. At the lower end of the sliding rod (28), a support plate (27) is fixedly installed. On the side wall of the cover tube (17), a telescopic rod (18) is sleeved. Between the telescopic rod (18) and the cover tube (17), a second fastening screw (30) is installed. At the outer end of the telescopic rod (18), a motor (19) is fixedly installed. On the motor shaft of the motor (19), a first rotating shaft (20) is installed. On the surface of the first rotating shaft (20), a first rotating cylinder (21) is fixedly sleeved. Below the first rotating cylinder (21), a second rotating cylinder (23) is provided. Between the first rotating cylinder (21) and the second rotating cylinder (23), a conveyor belt (22) is sleeved. Inside the second rotating cylinder (23), a second rotating shaft (24) is sleeved. On the surface of the second rotating shaft (24), positioning frames (26) are symmetrically sleeved. On the second rotating shaft (24), a motor is installed. At the lower surface of the mounting plate (5), an elastic cord (6) is connected. At the lower end of the elastic cord (6), a step ring (16) is tied. Below the horizontal plate (8), a first frame (7) is fixedly installed. Inside the first frame (7), a support shaft (1) is sleeved. Between the support shaft (1) and the first frame (7), a first fastening screw (2) is installed. On the surface of the support shaft (1), a support cylinder (3) is sleeved. On the support cylinder (3), a traction rope (4) is wound. At the lower end of the traction rope (4), a second lifting mechanism (B) is connected. Inside the second lifting mechanism (B), it includes a clamping frame (37), a first sliding frame (32), and a second sliding frame (36). The first sliding frame (32) and the second sliding frame (36) are respectively arranged on the left and right sides of the clamping frame (37). Between the first sliding frame (32) and the second sliding frame (36) and the clamping frame (37), sliding frames (38) are installed. Inside the sliding frame (38), a telescopic airbag (39) is sleeved. Inside the inner side of the surface of the sliding frame (38), a second spiral spring (40) is sleeved. On the inner side surface of the clamping frame (37), second airbags (41) are symmetrically installed. On the top surface of the clamping frame (37), a positioning block (31) is fixedly installed. Between the clamping frame (37) and the traction rope (4), a pull rope (35) is connected. Outside the first sliding frame (32), a second connecting ring (34) is sleeved. Outside the second sliding frame (36), a first connecting ring (33) is sleeved.

2. The auxiliary up-and-down device for the rear trunk of an automobile according to claim 1, characterized in that: The horizontal plate (8) is made of transparent glass.

3. The auxiliary up-and-down device for the rear trunk of an automobile according to claim 1, wherein: The mounting plate (5), elastic cord (6) and stepping ring (16) form an extrusion assembly. The elastic cord (6) is made of flat webbing and evenly sleeved with rubber bands inside.

4. The auxiliary up-and-down device for the rear trunk of an automobile according to claim 1, characterized in that: The ventilation box (10) is a hollow box structure. The ventilation box (10) communicates with the suction cup (9) and the first airbag (11) respectively. Both the suction cup (9) and the first airbag (11) are made of rubber material.

5. The auxiliary up-and-down device for the rear trunk of an automobile according to claim 1, characterized in that: The telescopic rod (18) is of an L-shaped structure. The sliding rod (28) is slidably matched with the sleeve pipe (17).

6. The auxiliary up-and-down device for the rear trunk of an automobile according to claim 1, characterized in that: The back surface of the conveyor belt (22) is made of polyester material.

7. An auxiliary up-and-down device for an automobile rear trunk according to claim 1, characterized in that: The positioning block (31) is slidably matched with the first sliding frame (32). The second connecting ring (34) is fixedly connected to the second sliding frame (36). The second connecting ring (34) is slidably matched with the first sliding frame (32). The first connecting ring (33) is fixedly connected to the first sliding frame (32). The first connecting ring (33) is slidably matched with the second sliding frame (36).

8. The auxiliary up-and-down device for the rear trunk of an automobile according to claim 1, wherein: The second airbag (41) communicates with the telescopic airbag (39). The sliding frame (38) is slidably matched with the clamping frame (37).

Images