Spare tire fixing device for back row seat backrest of automobile

Abstract

The invention relates to the technical field of spare tire fixing, and discloses an automobile rear-row seat backrest spare tire fixing device which comprises an automobile rear-row seat back plate and a spare tire. According to the portable spare tire fixing seat, when a spare tire needs to be replaced, the spare tire can be detached only by unlocking a ratchet wheel tightener and taking down a hook from a hanging ring, then the spare tire can be installed, when a new spare tire is installed, a sliding block can be slid to drive a movable plate to move, and the spare tire can be conveniently replaced. And a hanging ring is driven to move to adapt to installation of various spare tires with different sizes, then a ratchet wheel tightener is tightened, a first triangular ring is pulled downwards, the ratchet wheel tightener winds a binding column for winding, and therefore a first binding belt is driven to be tightened downwards to complete fixation of the spare tire. And meanwhile, after the distance is shortened, the first binding band and the second binding band can apply a force towards the back plate of the rear row seat of the automobile to the spare tire, so that the friction force between the spare tire and the back plate of the rear row seat of the automobile is increased, and the spare tire cannot fall off.

Description

Technical Field

[0001] The present invention relates to the technical field of spare tire fixing, and specifically to a device for fixing a spare tire on the backrest of an automobile rear seat. Background Art

[0002] A spare tire is an important part of an automobile. When a tire of the automobile bursts or deflates, it can play an important role and help the automobile to travel again;

[0003] In the existing vehicle spare tire fixing methods, they are mainly divided into the under-mounted type and the rear-mounted type. Among them, the under-mounted type usually uses a spare tire lifter and a bracket to fix the spare tire to the chassis of the automobile, and the rear-mounted spare tire rack is fixed to the rear door;

[0004] For example, in the prior art CN 218258430 U, a vehicle spare tire rack and a vehicle are disclosed. By providing a bottom fixing pipe, an intermediate connecting frame and a spare tire fixing disc, the bottom fixing pipe can be used for the vehicle spare tire rack to be fixedly connected to the vehicle floor, realizing the fixation of the vehicle spare tire rack inside the vehicle. The bottom fixing pipe is provided with an installation plane. When the bottom fixing pipe is fixed to the vehicle floor, the installation plane fits with the vehicle floor, thereby realizing the stability of the bottom fixing pipe on the vehicle floor. The intermediate connecting frame is fixedly connected to the bottom fixing pipe and extends away from the vehicle floor. One end of the intermediate connecting frame away from the vehicle floor can be used for fixing the spare tire fixing disc, and the spare tire can be fixed on the spare tire fixing disc. By fixing the spare tire on the fixing disc, the installation of the spare tire inside the vehicle can be realized. By setting this vehicle spare tire rack, the vehicle can effectively avoid the influence of the spare tire on the opening of the vehicle's rear door and the vehicle's passage;

[0005] For the under-mounted and rear-mounted spare tires, this kind of spare tire fixing method has a cumbersome process and the structure is not easy to see. The disassembly and fixing methods are not easy to understand, and it is easy to get dirty and corroded. For some cars using hidden spare tires, because the spare tire is stored in a closed environment under the floor, it is not easy to take out when needed. Summary of the Invention

[0006] (1) Technical Problems to be Solved

[0007] Aiming at the deficiencies of the prior art, the present invention provides a device for fixing a spare tire on the backrest of an automobile rear seat, which has the advantages of convenient disassembly and assembly of the spare tire, etc., and solves the above technical problems.

[0008] Technical Solution

[0009] To achieve the above object, the present invention provides the following technical solution: An automobile rear seat backrest fixed spare tire device, comprising an automobile rear seat backboard and a spare tire. At the bottom of the front surface of the automobile rear seat backboard, a plurality of second limiting plates are connected. At the upper part of the front surface of the automobile rear seat backboard, a plurality of sliding grooves are provided, and sliding columns are arranged in the grooves. The outer end of the sliding column is connected with a sliding block. The side of the sliding block away from the automobile rear seat backboard is connected with a moving plate, and the moving plate is used to adjust the sliding of the sliding block in the sliding groove. On the surface of the automobile rear seat backboard, a plurality of threaded holes are provided along the upper and lower surfaces of the sliding groove. The side of the moving plate away from the automobile rear seat backboard is connected with connecting screws corresponding to the threaded holes. The side of the moving plate away from the automobile rear seat backboard is movably connected with a first limiting plate. The end of the first limiting plate is connected with a first binding strap. One side of the end of the first binding strap is connected with a first triangular ring. The bottom edge of the first triangular ring is connected with a ratchet tightener. The other end of the ratchet tightener is connected with a second triangular ring. The top of the second limiting plate is connected with a second binding strap, and the second binding straps are all connected with the second triangular ring. At the position corresponding to the air core of the spare tire on the front surface of the automobile rear seat backboard, a tire pressure monitoring structure is provided.

[0010] As a preferred technical solution of the present invention, a hanging ring is arranged in the middle of the side of the moving plate away from the automobile rear seat backboard. The outer end of the hanging ring is connected with a hook, and the hook is connected to the end of the first limiting plate.

[0011] Through the above technical solution, when installing the spare tire, place the spare tire on the tops of the two second limiting plates, and at the same time hang the hook on the hanging ring to complete the preliminary limitation of the spare tire.

[0012] As a preferred technical solution of the present invention, the number of the sliding grooves is two, and the same sliding blocks are arranged in each sliding groove. The central axis of the inner ring of the hanging ring is vertically downward and the surface is smooth. The hook is hung in the hanging ring, and the hook is rotatably connected to the middle of the end of the first limiting plate.

[0013] Through the above technical solution, the two sliding grooves can ensure that the two hooks apply pressure to the spare tire from both sides. When the size of the spare tire is too large, the fixed hanging structure will cause the hook position to be unable to be hung. At this time, move the sliding block to drive the movement of the moving plate and drive the movement of the hanging ring to adapt to the installation of spare tires of various different sizes.

[0014] As a preferred technical solution of the present invention, a moving plate is fixedly installed on the side of the sliding block away from the automobile rear seat backboard. The moving plate is slidably connected with the automobile rear seat backboard. After adjusting the position of the moving plate, the connecting screw is inserted into the corresponding threaded hole.

[0015] As a preferred technical solution of the present invention, the connecting screw is used to connect and fasten the moving plate to the threaded hole on the backrest of the rear seat of the vehicle after the moving plate slides.

[0016] As a preferred technical solution of the present invention, both the first triangular ring and the second triangular ring are isosceles triangles. The outer ends of the two waists of the first triangular ring are fixed to the first strap, and the outer ends of the two waists of the second triangular ring are fixed to the second strap.

[0017] As a preferred technical solution of the present invention, the second triangular ring is connected to the fixed binding post of the ratchet tightener, and the first triangular ring is connected to the binding post for winding of the ratchet tightener. By pulling down the first triangular ring through the ratchet tightener, and pulling down the first triangular ring through the ratchet tightener, the ratchet tightener winds the binding post to complete the winding, thereby driving the first strap to tighten downward to complete the fixation of the spare tire. At the same time, as the distance shortens, the first strap and the second strap will apply a force towards the backrest of the rear seat of the vehicle to the spare tire after they are attached, increasing the friction between the spare tire and the backrest of the rear seat of the vehicle, so that the spare tire will not fall.

[0018] As a preferred technical solution of the present invention, a cushion plate made of an elastic material is fixedly installed on the surface of the first limiting plate in contact with the spare tire.

[0019] As a preferred technical solution of the present invention, the tire pressure monitoring structure includes a valve core connecting nozzle, a connecting pipe, and a tire pressure detection device. The valve core connecting nozzle is connected to the valve core of the spare tire, and the connection point is sealed. The connecting pipe is a corrugated pipe for connecting the internal gas of the spare tire to the tire pressure detection device.

[0020] As a preferred technical solution of the present invention, the tire pressure detection device detects the tire pressure through the gas received by the connecting pipe and sends the detected tire pressure to the vehicle driver.

[0021] Compared with the prior art, the present invention provides a device for fixing a spare tire on the backrest of a rear seat of a vehicle, which has the following beneficial effects:

[0022] 1. When it is necessary to replace the spare tire in the present invention, only need to unlock the ratchet tightener and remove the hook from the hanging ring to complete the disassembly of the spare tire, and then the installation of the spare tire can be carried out. When installing a new spare tire, the movement of the moving plate can be driven by sliding the sliding block, and the hanging ring can be driven to move to adapt to the installation of various different sizes of spare tires. Then tighten the ratchet tightener, pull down the first triangular ring, and the ratchet tightener winds the binding post to complete the winding, thereby driving the first strap to tighten downward to complete the fixation of the spare tire. At the same time, as the distance shortens, the first strap and the second strap will apply a force towards the backrest of the rear seat of the vehicle to the spare tire after they are attached, increasing the friction between the spare tire and the backrest of the rear seat of the vehicle, so that the spare tire will not fall.

[0023] 2. In the present invention, the spare tire sizes of different vehicle models are inconsistent, or the types of spare tires are inconsistent, such as full-size spare tires or half-size spare tires. When the size of the spare tire is too large, the fixed hanging structure will cause the hook position to be unable to be hung. At this time, the slider is slid to drive the movement of the moving plate, and the hanging ring is driven to move to adapt to the installation of various different sizes of spare tires. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0025] Figure 2 is the present invention Figure 1 partial enlarged schematic diagram at A in;

[0026] Figure 3 is a three-dimensional schematic diagram of the present invention;

[0027] Figure 4 is a sectional three-dimensional schematic diagram of the present invention;

[0028] Figure 5 is the present invention Figure 4 partial enlarged schematic diagram at B in.

[0029] Wherein: 1. Rear seat backboard of the vehicle; 2. Slider; 3. Moving plate; 4. Connecting screw; 5. Hanging ring; 6. First limiting plate; 601. Hook; 602. Pad; 7. First strap; 8. First triangular ring; 9. Second limiting plate; 10. Second strap; 11. Second triangular ring; 12. Ratchet tightener; 13. Air core connecting nozzle; 14. Connecting pipe; 15. Tire pressure detection device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-5, an automobile rear seat backrest fixed spare tire device, including an automobile rear seat back panel 1 and a spare tire. The automobile rear seat back panel 1 is fixedly installed on the back of the last row of seats in the automobile (the seats are not shown in the figure). At the bottom of the front surface of the automobile rear seat back panel 1, a plurality of second limiting plates 9 are connected. At the upper part of the front surface of the automobile rear seat back panel 1, a plurality of sliding grooves are provided, and sliding columns are arranged in the grooves. The outer end of the sliding column is connected with a sliding block 2. One side of the sliding block 2 away from the automobile rear seat back panel 1 is connected with a moving plate 3, and the moving plate 3 is used to adjust the sliding of the sliding block 2 in the sliding groove. On the surface of the automobile rear seat back panel 1, a plurality of threaded holes are provided along the upper and lower surfaces of the sliding groove. One side of the moving plate 3 away from the automobile rear seat back panel 1 is connected with connecting screws 4 corresponding to the threaded holes. One side of the moving plate 3 away from the automobile rear seat back panel 1 is movably connected with a first limiting plate 6. The end of the first limiting plate 6 is connected with a first binding strap 7. One side of the end of the first binding strap 7 is connected with one side of a first triangular ring 8. The bottom edge of the first triangular ring 8 is connected with a ratchet tightener 12. The other end of the ratchet tightener 12 is connected with a second triangular ring 11. The top of the second limiting plate 9 is connected with a second binding strap 10, and the second binding straps 10 are all connected with the second triangular ring 11. At the position corresponding to the air core of the spare tire on the front surface of the automobile rear seat back panel 1, a tire pressure monitoring structure is provided.

[0032] Further, in the middle of one side of the moving plate 3 away from the automobile rear seat back panel 1, a hanging ring 5 is provided. The outer end of the hanging ring 5 is connected with a hook 601, and the hook 601 is connected to the end of the first limiting plate 6.

[0033] The advantage is that when installing the spare tire, place the spare tire on the tops of the two second limiting plates 9, and at the same time hang the hook 601 on the hanging ring 5 to complete the preliminary limitation of the spare tire.

[0034] Further, the number of sliding grooves is two, and the same sliding block 2 is arranged in each sliding groove. The two sliding grooves can ensure that the two hooks 601 provided apply pressure to the spare tire from both sides. The central axis of the inner ring of the hanging ring 5 is vertically downward and the surface is smooth. The hook 601 is hung in the hanging ring 5, and the hook 601 is rotatably connected to the middle of the end of the first limiting plate 6. Since the sizes of the spare tires of different vehicle models are inconsistent, or the types of spare tires are inconsistent, such as full-size spare tires or half-size spare tires, when the size of the spare tire is too large, the fixed hanging structure will cause the position of the hook 601 to be unable to be hung. At this time, slide the sliding block 2 to drive the movement of the moving plate 3 and drive the hanging ring 5 to move to adapt to the installation of various different sizes of spare tires.

[0035] Further, the moving plate 3 is fixedly installed on one side of the sliding block 2 away from the automobile rear seat back panel 1. A connecting screw 4 is slidably connected between the moving plate 3 and the automobile rear seat back panel 1. After adjusting the position of the moving plate 3, insert the connecting screw 4 into the corresponding threaded hole, and the connecting screw 4 is threadedly connected with the corresponding threaded hole, so as to fix the position of the connecting plate 3.

[0036] Furthermore, the connecting screw 4 is used to connect and fasten the moving plate 3 to the threaded hole on the backrest 1 of the rear seat of the vehicle after the moving plate 3 slides. After using the spare tire, if the spare tire needs to be replaced again and the types of the replaced spare tires are inconsistent, such as a full-size spare tire or a half-size spare tire, the connecting screw 4 can be loosened and the position of the hanging ring 5 can be readjusted.

[0037] Furthermore, both the first triangular ring 8 and the second triangular ring 11 are isosceles triangles. The outer ends of the two waists of the first triangular ring 8 are fixed to the first strap 7, and the outer ends of the two waists of the second triangular ring 11 are fixed to the second strap 10. The second triangular ring 11 is connected to the fixed binding post of the ratchet tightener 12, and the first triangular ring 8 is connected to the binding post for winding of the ratchet tightener 12. By pulling the first triangular ring 8 downward through the ratchet tightener 12, the ratchet tightener 12 winds the binding post to drive the first strap 7 to tighten downward to complete the fixation of the spare tire. At the same time, as the distance between the first strap 7 and the second strap 10 shortens and they are attached, a force towards the backrest 1 of the rear seat of the vehicle will be exerted on the spare tire, increasing the frictional force between the spare tire and the backrest 1 of the rear seat of the vehicle, so that the spare tire will not fall.

[0038] Furthermore, a backing plate 602 made of an elastic material is fixedly installed on the surface of the first limiting plate 6 in contact with the spare tire. A backing plate 601 is provided on the contact surface between the first limiting plate 6 and the spare tire. After the ratchet tightener 12 pulls the first triangular ring 8 downward and the ratchet tightener 12 winds the binding post, the backing plate 601 is in full contact with the surface of the spare tire. Since the backing plate 601 is made of an elastic material and has a relatively high coefficient of friction on its surface, the left and right jitters occurring during vehicle driving are avoided.

[0039] Furthermore, the tire pressure monitoring structure includes an air core connecting nozzle 13, a connecting pipe 14, and a tire pressure detection device 15. The air core connecting nozzle 13 is connected to the air core of the spare tire, and the connection point is sealed. The connecting pipe 14 is a corrugated pipe, which is used to connect the internal gas of the spare tire to the tire pressure detection device 15. After replacing the spare tire, the length of the connecting pipe 14 can be adjusted according to different spare tire sizes.

[0040] Furthermore, the tire pressure detection device 15 detects the tire pressure through the gas received by the connecting pipe 14 and sends the detected tire pressure to the vehicle driver. The tire pressure monitoring device 15 integrates a tire pressure gauge and a Bluetooth module. The Bluetooth module is Bluetooth-connected to the vehicle driving central control and continuously sends the tire pressure monitoring data to the vehicle driving central control. And this behavior is only displayed on the central control first when the vehicle is started, timely informing the vehicle owner of the situation of the spare tire and avoiding the occurrence of abnormal situations of the spare tire during driving;

[0041] During use, when a spare tire needs to be replaced, only the ratchet tightener 12 needs to be unlocked, and the hook 601 is removed from the hanging ring 5 to complete the removal of the spare tire, and then the installation of the spare tire can be carried out. When installing a new spare tire, the movement of the moving plate 3 can be driven by sliding the sliding block 2, and the hanging ring 5 is driven to move to adapt to the installation of spare tires of various different sizes. Then, the ratchet tightener 12 is tightened, and the first triangular ring 8 is pulled downward. The ratchet tightener 12 winds the binding column, thereby driving the first binding strap 7 to tighten downward to complete the fixation of the spare tire. At the same time, as the distance shortens, after the first binding strap 7 and the second binding strap 10 are attached, a force is applied to the spare tire towards the backrest 1 of the car rear seat, increasing the friction between the spare tire and the backrest 1 of the car rear seat, so that the spare tire will not slip.

[0042] Among them, four sliding blocks 2 on the front of the backrest 1 of the car rear seat can also be arranged in a detachable manner, and a hanging ring 5 is arranged on each sliding block 2. The ends of the first limiting plate 6 and the second limiting plate 9 can be hung by installing hooks 601, so that they can be removed when the spare tire is not installed.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spare tire fixing device for a rear seat backrest of an automobile, comprising a rear seat back plate (1) and a spare tire, characterized in that: The front bottom of the rear seat back plate (1) of the automobile is connected to a plurality of second limit plates (9); the front upper part of the rear seat back plate (1) of the automobile is provided with a plurality of slide grooves, and a sliding column is arranged in the groove; the outer end of the sliding column is connected to a sliding block (2); the sliding block (2) is connected to a movable plate (3) on the side away from the rear seat back plate (1) of the automobile; the movable plate (3) is used to adjust the sliding of the sliding block (2) in the slide groove; the surface of the rear seat back plate (1) of the automobile is provided with a plurality of threaded holes along the upper and lower surfaces of the slide groove; the side of the movable plate (3) away from the rear seat back plate (1) of the automobile is connected to connecting screws (4) corresponding to the threaded holes; The movable plate (3) is movably connected to a first limiting plate (6) at one side away from the rear seat back plate (1) of the automobile, the end of the first limiting plate (6) is connected to a first strap (7), the first strap (7) is connected to one side of a first triangular ring (8) at the end, the bottom of the first triangular ring (8) is connected to a ratchet tightener (12), the other end of the ratchet tightener (12) is connected to a second triangular ring (11), the top of the second limiting plate (9) is connected to a second strap (10), the second straps (10) are connected to the second triangular ring (11), and a tire pressure monitoring structure is arranged at the front of the rear seat back plate (1) of the automobile at the air core corresponding to the spare tire.

2. The device for fixing spare tire on the backrest of a rear seat of a vehicle according to claim 1, characterized in that: A hanging ring (5) is provided at the middle end of one side of the movable plate (3) away from the rear seat back plate (1) of the automobile, and a hook (601) is connected to the outer end of the hanging ring (5), and the hook (601) is connected to the end of the first limiting plate (6).

3. The device for fixing spare tire on the backrest of a rear seat of a vehicle according to claim 2, characterized in that: There are two slide grooves, and each slide groove is provided with an identical sliding block (2). The central axis of the inner ring of the hanging ring (5) is vertically downward and has a smooth surface. The hook (601) is hung in the hanging ring (5), and the hook (601) is rotatably connected to the middle of the end of the first limiting plate (6).

4. The device for fixing spare tire on the backrest of a rear seat of a vehicle according to claim 1, characterized in that: A movable plate (3) is fixedly mounted on one side of the sliding block (2) away from the rear seat back plate (1) of the automobile, and the movable plate (3) and the rear seat back plate (1) of the automobile are slidably connected to the connecting screws (4).

5. The device for fixing spare tire on the backrest of a rear seat of a vehicle according to claim 4, characterized in that: The connecting screws (4) are used to connect and fasten the moving plate (3) and the threaded holes on the back plate (1) of the rear seat of the automobile after the moving plate (3) slides.

6. The device for fixing spare tire on the backrest of a rear seat of a vehicle according to claim 1, characterized in that: The first triangular ring (8) and the second triangular ring (11) are both isosceles triangles; the outer ends of the first triangular ring (8) at both waists are fixed to the first binding belt (7); and the outer ends of the second triangular ring (11) at both waists are fixed to the second binding belt (10).

7. The device for fixing spare tire on the backrest of a rear seat of a vehicle according to claim 6, characterized in that: The second triangular ring (11) is connected to the fixed binding column of the ratchet tightener (12), the first triangular ring (8) is connected to the binding column used for winding up the ratchet tightener (12), and the first triangular ring (8) is pulled downward by the ratchet tightener (12).

8. The device for fixing spare tire on the backrest of a rear seat of a vehicle according to claim 1, characterized in that: A pad (602) made of elastic material is fixedly mounted on the side of the first limiting plate (6) in contact with the spare tire.

9. The device for fixing spare tire on the backrest of a rear seat of a vehicle according to claim 1, characterized in that: The tire pressure monitoring structure comprises an air core connecting nozzle (12), a connecting tube (14) and a tire pressure detection device (15); the air core connecting nozzle (12) is connected to the air core of the spare tire, and the connection point is sealed; the connecting tube (14) is a corrugated tube, and is used to connect the internal gas of the spare tire to the tire pressure detection device (15).

10. The device for fixing spare tire on the backrest of a rear seat of a vehicle according to claim 9, characterized in that: The tire pressure detection device (15) detects the tire pressure through the gas received by the connecting pipe (14), and sends the detected tire pressure to the vehicle driver.

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