Spare tire lifting and translation linkage device

Abstract

The utility model relates to the technical field of vehicles, in particular to a spare tire lifting and translation linkage device which comprises a mounting base, a transmission mechanism and a chain. The transmission mechanism comprises a driving assembly, a gear shaft, a gear and a chain wheel. The chain wheel and the gear are fixed on the gear shaft at an interval, and the driving assembly is used for driving the gear shaft to rotate; a rack matched with the gear is arranged on the mounting base, and the chain is wound on the chain wheel and used for being connected to a spare tire. According to the spare tire lifting and translation linkage device, the driving assembly drives the gear shaft to rotate, the gear shaft drives the gear to rotate, and the gear is meshed with the rack, so that the gear can move on the rack, the whole transmission mechanism is further driven to translate relative to the mounting base, and the spare tire is moved out while the spare tire is descended; the technical problem that in the prior art, when a spare tire is located at the bottom of a frame, the spare tire needs to be dragged out manually is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field, concretely relates to a spare tire lifting and translating linkage device. BACKGROUND

[0002] At present, spare tire lifters are mainly classified by power source, one is hand-operated lifter, driven by manpower, and the other is motor-driven lifter, and the core components of the two are worm gears. The main working principle is that worm gears drive sprocket or roller to rotate, and then control the retraction and release of chain or steel wire rope to realize the lifting of spare tire. Both types of lifters can only realize the up and down lifting of spare tire, and for the case that the spare tire is at the bottom of the vehicle frame, personnel need to crawl under the vehicle frame to pull out the spare tire, and in the case of emergency, such as rough or muddy road surface, manual pulling of the spare tire is extremely laborious and time-consuming. SUMMARY

[0003] The utility model aims at providing a spare tire lifting and translating linkage device to solve the technical problem that the spare tire needs to be manually pulled out when it is at the bottom of the vehicle frame, and the specific technical solution is as follows:

[0004] The utility model provides a spare tire lifting and translating linkage device, including installation base, transmission mechanism and chain, the transmission mechanism includes drive assembly, gear shaft, gear and sprocket, the sprocket and the gear are fixed on the gear shaft with interval, the drive assembly is used for driving the gear shaft rotation, the installation base is equipped with the rack that cooperates with the gear, the chain is around the sprocket, and the chain is used for connecting to the spare tire.

[0005] The further improvement of the utility model spare tire lifting and translating linkage device lies in that the transmission mechanism further includes bottom plate, the bottom plate is located in the installation base, and the first mounting seat for the rotation installation of gear shaft is arranged on the bottom plate.

[0006] The further improvement of the utility model spare tire lifting and translating linkage device lies in that the transmission mechanism includes motor and worm, the motor is installed on the bottom plate, the second mounting seat is arranged on the bottom plate, the worm is rotatably installed on the second mounting seat, the motor is used for driving the rotation of the worm, and the worm wheel that cooperates with the worm is fixed on the gear shaft.

[0007] The further improvement of the utility model spare tire lifting and translating linkage device lies in that the motor is connected to the worm through the shaft coupling.

[0008] The further improvement of the utility model spare tire lifting and translating linkage device lies in that the installation base includes mounting plate and two side plates fixed on the two sides of the mounting plate respectively, and the rack is fixed on the bottom of the mounting plate and faces the bottom plate.

[0009] The further improvement of the spare tire lifting and translating linkage device lies in that a roller is fixed on the gear shaft, and a sliding groove for guiding the rolling of the roller is formed in the side plate.

[0010] The further improvement of the spare tire lifting and translating linkage device lies in that the chain has a connecting lug at the end, and the connecting lug is detachably connected to the connecting plate.

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

[0012] The spare tire lifting and translating linkage device drives the gear shaft to rotate through the driving assembly, and the gear shaft drives the gear to rotate, and the gear can move on the rack due to the meshing of the gear and the rack, thereby driving the whole transmission mechanism to translate relative to the mounting base, so that the spare tire is moved out while being lowered, and the technical problem that the spare tire needs to be manually pulled out when the spare tire is at the bottom of the frame in the prior art is solved.

[0013] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of explanation and are not intended to limit the application. In the drawings:

[0015] Figure 1 is a schematic view of the mounting base of the spare tire lifting and translating linkage device of the utility model;

[0016] Figure 2 is a side view of the spare tire lifting and translating linkage device of the utility model;

[0017] Figure 3 is a top view of the transmission mechanism of the spare tire lifting and translating linkage device of the utility model, which is located inside the mounting base;

[0018] Figure 4 is a schematic view of the inside of the mounting base of the spare tire lifting and translating linkage device of the utility model;

[0019] Figure 5 is a schematic view of the outside of the mounting base of the spare tire lifting and translating linkage device of the utility model;

[0020] Figure 6This is a schematic diagram of the transmission mechanism of the spare tire lifting and translation linkage device of this utility model.

[0021] The components include: 1. Transmission mechanism; 2. Mounting base; 3. Connecting lug; 4. Spare tire; 5. Connecting plate; 6. Chain; 7. Nut; 101. Motor; 102. First mounting seat; 103. Gear shaft; 104. Roller; 105. Worm; 106. Second mounting seat; 107. Worm wheel; 108. Base plate; 109. Sprocket; 1010. Gear; 1011. Extension plate; 201. Side plate; 202. Rack; 203. Mounting plate. Detailed Implementation

[0022] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] See Figures 1-6 As shown, a spare tire lifting and translating linkage device includes a mounting base 2, a transmission mechanism 1, and a chain 6. The transmission mechanism 1 includes a drive assembly, a gear shaft 103, a gear 1010, and a sprocket 109. The sprocket 109 and the gear 1010 are fixedly spaced on the gear shaft 103, and the drive assembly is used to drive the gear shaft 103 to rotate. The mounting base 2 is provided with a rack 202 that engages with the gear 1010, and the chain 6 is wound around the sprocket 109. The chain 6 is used to connect to the spare tire 4.

[0024] This utility model designs a worm gear 107, worm 105, gear 1010, and rack 202 mechanism. The worm gear 107, gear 1010, and sprocket 109 are coaxial, enabling a single motor 101 to control lifting, translating, and linkage. Furthermore, the worm gear 107 and worm 105 mechanism can ensure self-locking at any position.

[0025] Preferred, such as Figure 6 As shown, the transmission mechanism 1 also includes a base plate 108 located within the mounting base 2. The base plate 108 has a first mounting seat 102 for rotatably mounting the gear shaft 103. The base plate 108 is smaller than the mounting base 2. The rack 202 is arranged along the length of the mounting base 2, allowing it to translate within the mounting base 2 through the engagement of the gear 1010 and the rack 202. The axial direction of the gear shaft 103 is perpendicular to the length of the mounting base 2. The first mounting seat 102 includes two first ear plates with holes, which are fixed relative to each other on both sides of the base plate 108. The gear shaft 103 passes through both first ear plates, enabling rotatable mounting of the gear shaft 103. An opening is provided on the base plate 108 for the gear 1010 to extend out, meshing with the rack 202 after extending out of the opening.

[0026] Preferably, the transmission mechanism 1 includes a motor 101 and a worm gear 105. The motor 101 is mounted on the base plate 108, and the base plate 108 is provided with a second mounting seat 106. The worm gear 105 is rotatably mounted on the second mounting seat 106, and the motor 101 drives the worm gear 105 to rotate. A worm wheel 107 that cooperates with the worm gear 105 is fixed on the gear shaft 103. The second mounting seat 106 includes two second ear plates with holes. The two second ear plates are fixed relative to each other on both sides of the base plate 108. The worm gear 105 passes through both second ear plates and is set perpendicular to the gear shaft 103, so that the worm gear 105 can be rotatably mounted and cooperate with the worm wheel 107 to rotate. An extension plate 1011 is formed by extending outward from the second ear plate near the motor 101 in the length direction of the mounting base 2. The motor 101 is fixed on the extension plate 1011, thereby ensuring that the output shaft of the motor 101 and the worm gear 105 are on the same horizontal plane.

[0027] Preferably, the motor 101 is connected to the worm gear 105 via a coupling, thereby satisfying the transmission of the output shaft torque of the motor 101.

[0028] Preferably, the mounting base 2 includes a mounting plate 203 and two side plates 201 respectively fixed to both sides of the mounting plate 203. The rack 202 is fixed to the bottom of the mounting plate 203 and faces the base plate 108. Further, sealing plates can be provided at relative positions on the mounting plate 203 to block the two side plates 201 as needed. The structure of this mounting base 2 ensures that the transmission mechanism 1 has a certain amount of translational space inside the mounting base 2.

[0029] Preferably, a roller 104 is fixed on the gear shaft 103, and a groove is provided on the side plate 201 to guide the roller 104 to roll. There are two rollers 104, which are respectively installed in the grooves of the two side plates 201. Furthermore, steps, stops, or baffles with a height not greater than the radius of the roller 104 can be provided on both sides of the groove to limit the roller 104 to roll only along the length direction of the mounting base 2, guide the movement of the roller 104, and prevent it from rolling out of the groove.

[0030] Preferred, such as Figure 2 As shown, it also includes a connecting plate 5 for detachable installation on the spare tire 4. The end of the chain 6 is provided with a connecting lug 3, which is detachably connected to the connecting plate 5. Specifically, the cross-section of the connecting plate 5 is Z-shaped. The connecting lug 3 passes through the top of the connecting plate 5 and is connected to the connecting plate 5 by a nut 7, thereby realizing the raising and lowering of the spare tire 4 by the winding of the chain 6.

[0031] In operation, motor 101 starts rotating forward, driving worm gear 105 and gear shaft 103 to rotate. Gear 1010 on gear shaft 103, constantly meshing with rack 202, drives the entire transmission mechanism 1 to move to the right. Rolling roller 104 provides guidance and load-bearing. Simultaneously, as sprocket 109 rotates, the chain 6 wound on it unwinds, allowing spare tire 4 to descend and move to the right until the tire contacts the ground and roller 104 has just reached its right limit within the groove. At this point, motor 101 stops. Motor 101 then starts rotating in reverse, causing spare tire 4 to rise and move to the left. Motor 101 stops when connecting plate 5 contacts mounting base 2.

[0032] This utility model relates to a spare tire lifting and translating linkage device. A drive assembly rotates a gear shaft 103, which in turn rotates a gear 1010. Since the gear 1010 meshes with a rack 202, it can move along the rack, thereby causing the entire transmission mechanism 1 to translate relative to the mounting base 2. This allows the spare tire 4 to be lowered and removed simultaneously, solving the technical problem in existing technologies where the spare tire 4 needs to be manually pulled out when it is located at the bottom of the vehicle frame. This utility model can both lift and move the spare tire 4, reducing manpower and material resources, increasing operational efficiency, and featuring a simple, safe, and reliable structure. It also allows for self-locking at any position.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spare tire lifting and translation linkage device, characterized in that, The device includes a mounting base (2), a transmission mechanism (1), and a chain (6); the transmission mechanism (1) includes a drive assembly, a gear shaft (103), a gear (1010), and a sprocket (109); the sprocket (109) and the gear (1010) are fixed at intervals on the gear shaft (103), and the drive assembly is used to drive the gear shaft (103) to rotate; the mounting base (2) is provided with a rack (202) that cooperates with the gear (1010), and the chain (6) is wound around the sprocket (109), and the chain (6) is used to connect to the spare tire (4).

2. The spare tire lifting and translation linkage device according to claim 1, characterized in that, The transmission mechanism (1) further includes a base plate (108), which is located inside the mounting base (2). The base plate (108) is provided with a first mounting seat (102) for the gear shaft (103) to be rotatably mounted.

3. The spare tire lifting and translation linkage device according to claim 2, characterized in that, The transmission mechanism (1) includes a motor (101) and a worm (105). The motor (101) is mounted on the base plate (108). The base plate (108) is provided with a second mounting seat (106). The worm (105) is rotatably mounted on the second mounting seat (106). The motor (101) is used to drive the worm (105) to rotate. A worm wheel (107) that cooperates with the worm (105) is fixed on the gear shaft (103).

4. The spare tire lifting and translation linkage device according to claim 3, characterized in that, The motor (101) is connected to the worm gear (105) via a coupling.

5. The spare tire lifting and translation linkage device according to claim 2, characterized in that, The mounting base (2) includes a mounting plate (203) and two side plates (201) respectively fixed on both sides of the mounting plate (203). The rack (202) is fixed to the bottom of the mounting plate (203) and faces the base plate (108).

6. The spare tire lifting and translation linkage device according to claim 5, characterized in that, A roller (104) is fixed on the gear shaft (103), and a groove is provided on the side plate (201) to guide the roller (104) to roll.

7. The spare tire lifting and translation linkage device according to claim 1, characterized in that, It also includes a connecting plate (5) for detachable mounting on the spare tire (4), wherein the end of the chain (6) is provided with a connecting lug (3), which is detachably connected to the connecting plate (5).

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