Lifting type automobile wheel dismounting and mounting cart

Abstract

The utility model discloses a lift type car wheel disassembly and assembly cart which comprises a base, a tool containing disc is installed in the base, lockable universal wheels are fixedly installed at the four corners of the bottom of the base, a support assembly is fixedly installed at the tops of the lockable universal wheels, a lifting assembly is fixedly installed on one side of the support assembly, and the lifting assembly is fixedly installed on the other side of the support assembly. According to the scheme, the lifting type car wheel dismounting and mounting cart is simple in structure, practical, reliable, good in universality and capable of assisting car wheel dismounting and mounting, the car wheel dismounting and mounting efficiency is improved, and the lifting type car wheel dismounting and mounting cart is suitable for popularization and application. The dismounting and mounting requirements of automobile wheels with different heights can be met through the lifting mechanism, the problem that the wheels are manually carried is solved, potential safety hazards are reduced, the rollers are installed on the lifting frame to support the automobile wheels so that the wheels can be protected, and the wheels can be conveniently checked and cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile maintenance, in particular to a lifting type automobile wheel disassembly and assembly cart. Background Art

[0002] During the maintenance process of a car, the wheels need to be removed and installed. Usually, the maintenance personnel need to lift the vehicle, lift the entire tire and separate it from the brake disc by hand during removal, and lift the wheel and align it with the wheel bolts during installation. Manual operation is time-consuming and labor-intensive, and inefficient. In addition, for larger wheels, it is impossible for one person to operate it, which hinders the maintenance work.

[0003] A Chinese patent with announcement number (CN222793118U) discloses a mobile transport wheel hub disassembly and assembly trailer, which belongs to the technical field of military transport vehicle travel systems. It includes a frame, a roller is provided at the bottom of the frame, a slide rod is vertically slidably connected to one side of the top of the frame, a mounting seat is fixedly connected to the top of the frame away from the slide rod, the top of the mounting seat is movably hinged with a clamping ring, a pressure handle is inserted into the clamping ring, one end of the pressure handle is movably hinged to the slide rod, and the top of the slide rod is fixedly connected to the clamping seat.

[0004] In the above scheme, although a snap ring is used to fix the wheel, it can only be used for wheels of a specific size and has a small scope of application. At the same time, the device uses a jack-like method to lift the fixed snap ring, and the lifting height is limited. It is not applicable when the vehicle is lifted to a high height. Therefore, it is necessary to provide a lifting car wheel disassembly and assembly cart. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting type automobile wheel disassembly and assembly trolley to solve the problem that the above-mentioned background technology can only be used for wheels of a specific size and has a small scope of application; at the same time, the device uses a jack-like method to lift the fixed clamping ring, and the lifting height is limited. It is not applicable when the vehicle is lifted to a higher height.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a lifting type automobile wheel disassembly and assembly cart, comprising a base, a tool holding tray installed inside the base, lockable universal wheels fixedly installed on the four corners of the bottom of the base, a bracket assembly fixedly installed on the top of the lockable universal wheel, a lifting assembly fixedly installed on one side of the bracket assembly, a lifting assembly fixedly connected to the lifting assembly, and an output assembly installed on the top of the lifting assembly.

[0007] Preferably, the bracket assembly includes a frame, the frame is fixedly mounted on the top of the base, and handles are fixedly mounted on both ends of the top of the base.

[0008] Preferably, the lifting assembly includes a slide frame, which is fixedly installed on one side of the frame. Two sliding wheels are slidably installed inside the frame. A connecting seat is fixedly installed between the two sliding wheels. One end of the connecting seat is fixedly connected to a steel wire rope, and one end of the steel wire rope passes through the top of the slide frame.

[0009] Preferably, the lifting assembly includes a fixing frame, which is fixedly mounted on one side of the connecting seat, a lifting frame is fixedly mounted on the bottom of the fixing frame, two second mounting frames are fixedly mounted on the fixing frame, and a vertical roller is rotatably mounted between the two second mounting frames.

[0010] Preferably, two first mounting brackets are fixedly mounted on both ends of the top of the lifting frame, and a horizontal roller is rotatably mounted between the corresponding two first mounting brackets.

[0011] Preferably, the output component includes a bidirectional self-locking winch, which is fixedly mounted on the top of the slide frame. A crank is mounted on one side of the bidirectional self-locking winch, and one end of the steel wire rope is wound around and connected to the bidirectional self-locking winch.

[0012] Preferably, the bidirectional self-locking winch includes a fixed frame, a transmission gear set, a gear winch, and a self-locking assembly. The fixed frame is fixedly installed on the top of the slide frame, and the fixed frame is U-shaped. The gear winch is fixedly connected to the fixed frame and the wire rope is wound around the gear winch. The transmission gear set is fixed on the fixed frame and meshed with the gear winch. The crank is connected to the transmission gear set and drives the transmission gear set to rotate.

[0013] Preferably, the transmission gear set includes a transmission pinion, a synchronization pinion, a synchronization gear, a first connecting rod and a second connecting rod, the synchronization pinion and the synchronization gear are arranged concentrically in parallel, the transmission pinion is meshed and connected with the synchronization gear, the synchronization pinion is meshed and connected with the gear winch, the first connecting rod passes through the synchronization pinion and the synchronization gear respectively, and the output end passes through the fixed frame, the second connecting rod passes through the transmission pinion and the output end passes through the fixed frame, and the crank is connected to the output end of the first connecting rod or the output end of the second connecting rod.

[0014] Preferably, the self-locking assembly includes a self-locking clip, a clip handle, a third connecting rod and a tension spring, the clip handle is provided with a groove, the groove has a low position and two high positions on both sides of the low position, one end of the tension spring is connected to the fixing frame, and the other end slides in the groove, one end of the third connecting rod is connected to the clip handle, and the other end is connected to the self-locking clip, one end of the self-locking clip is connected to the third connecting rod and is rotatably connected to the fixing frame, and the other end is engaged with or separated from the transmission gear set,

[0015] When the tension spring slides to the low position of the groove, the self-locking clamp is separated from the transmission gear set, and when the tension spring slides to the high position of the groove, the self-locking clamp is engaged with the transmission gear set.

[0016] Preferably, clamping flanges are provided on both sides of one end of the self-locking clamp that is clamped with the transmission gear set.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This solution has a simple structure, is practical, reliable, and has good versatility. It can assist in the disassembly and assembly of automobile wheels, improve the efficiency of automobile wheel disassembly and assembly, and can adapt to the disassembly and assembly requirements of automobile wheels of different heights through the lifting mechanism, avoiding the problem of manual wheel handling and reducing safety hazards. Installing rollers on the lifting frame to support the automobile wheels can protect the wheel tires and facilitate the inspection and cleaning of the wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural diagram of the automobile wheel disassembly and assembly cart of the utility model;

[0020] Figure 2 This is a side view of the automobile wheel disassembly and assembly cart of the utility model;

[0021] Figure 3 This is a diagram of the bracket assembly of the automobile wheel disassembly and assembly cart of the present invention;

[0022] Figure 4 This is a diagram of the lifting assembly of the automobile wheel disassembly and assembly cart of the present invention;

[0023] Figure 5 This is a diagram of the lifting assembly of the automobile wheel disassembly and assembly cart of the present invention;

[0024] Figure 6 This is a diagram of the self-locking assembly of the automobile wheel disassembly and assembly cart of the present invention;

[0025] Figure 7 This is a diagram of the self-locking clip of the automobile wheel disassembly and assembly cart of the present invention.

[0026] In the figure: 1-base, 2-lockable universal wheel, 3-tool holding tray, 4-frame, 5-handle, 6-slide rack, 7-sliding wheel, 8-connecting seat, 9-bidirectional self-locking winch, 91-connecting frame, 92-transmission gear set, 921-transmission pinion, 922-synchronizing pinion, 923-synchronizing large gear, 924-first connecting rod, 925-second connecting rod, 93-gear winch, 94-self-locking assembly, 941-self-locking clamp, 942-clamping handle, 943-third connecting rod, 944-tension spring, 945-groove, 946-clamping flange, 10-crank handle, 11-wire rope, 12-fixed frame, 13-lifting frame, 14-first mounting frame, 15-horizontal roller, 16-second mounting frame, 17-vertical roller. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] like Figure 1-Figure 2 The figure shows a liftable wheel removal and installation cart. It includes a base 1, internally mounted with a tool tray 3 for storing tools needed for tire removal (such as wrenches and tire pressure gauges). Lockable universal wheels 2 are fixed to the four corners of the base 1, facilitating flexible movement and positioning of the cart. A support assembly is secured to the base 1 and includes a frame 4 and handles 5 fixed at each end for the operator to push or secure the cart.

[0029] like Figure 3-Figure 5 The lifting assembly shown is mounted on one side of the vehicle frame 4 and includes a chute frame 6, a sliding wheel 7, a connecting seat 8, and a steel wire rope 11. The chute frame 6 is vertically fixed to the side of the vehicle frame 4. A track is provided vertically inside the vehicle frame 4, and the sliding wheel 7 can slide up and down within the track. The two sliding wheels 7 are fixedly connected by a connecting seat 8, allowing them to move synchronously. One side of the connecting seat 8 extends out of the vehicle frame and connects to the lifting assembly, while the other side is connected to one end of the steel wire rope 11. The steel wire rope 11 passes upward through the pulley at the top of the chute frame 6, and the other end is wrapped around the two-way self-locking winch 9 located at the top of the chute frame.

[0030] The lifting assembly includes a fixed frame 12 and a lifting frame 13. The fixed frame 12 is fixedly connected to the connecting base 8 and rises and falls synchronously with the connecting base. The bottom of the fixed frame 12 extends laterally to form a lifting frame 13, which is used to place the wheel to be removed and installed. A pair of first mounting frames 14 are mounted on each side of the top of the lifting frame 13. A horizontal roller 15 is rotatably mounted between the two first mounting frames 14 (the first mounting frames 14 raise the front of the tire so that it can lean back to prevent it from falling). The axis of the horizontal roller extends along the front-to-back direction of the cart, facilitating the forward and backward rolling adjustment of the wheel on the lifting frame. A second mounting frame 16 is mounted on the fixed frame 12, and a vertical roller 17 is mounted on the second mounting frame 16. The axis of the vertical roller is in the vertical direction and is used to provide rolling support on the side of the wheel to facilitate left and right rotation adjustment of the wheel. Through the cooperation of the horizontal and vertical rollers, the wheel can roll flexibly on the lifting assembly, conveniently aligning it with the wheel hub bolt holes for installation without the laborious lifting and adjusting of the angle.

[0031] like Figure 6 As shown, the output assembly includes a bidirectional self-locking winch 9 and a crank 10. The connecting frame 91 of the bidirectional self-locking winch 9 is installed on the top of the slide frame 6, and is provided with a transmission gear set 92, a gear winch 93 and a self-locking assembly 94. The transmission gear set 92 includes a transmission pinion 921, a synchronization pinion 922, a synchronization gear 923, a first connecting rod 924 and a second connecting rod 925. The synchronization pinion 922 and the synchronization gear 923 are coaxially fixed, installed on the connecting frame 91 and can rotate around the first connecting rod 924. The transmission pinion 921 is installed on the second connecting rod 925 and meshes with the synchronization gear 923. The gear winch 93 is installed on the connecting frame 91 and meshes with the synchronization pinion 922. The wire rope 11 is wound around the gear winch 93. Crank handle 10 is detachably connected to the outer end of first connecting rod 924 or second connecting rod 925. When connected to first connecting rod 924 (on the large synchronous gear side), the crank handle directly drives the synchronous gear set, resulting in a high transmission ratio suitable for rapid lifting. When connected to second connecting rod 925 (on the small transmission gear side), power is transmitted through small transmission gear 921, large synchronous gear 923, and small synchronous gear 922, resulting in a low transmission ratio suitable for slow lifting. Maintenance personnel can select the crank handle connection position according to their needs to achieve the appropriate lifting speed and labor-saving effect.

[0032] like Figure 7As shown, the self-locking assembly 94 includes a self-locking clip 941, a latch handle 942, a third connecting rod 943, and a tension spring 944. The self-locking clip 941 is hinged to the connecting frame 91 via a pin at its center. One end of the clip is connected to the third connecting rod 943, and the other end is provided with two latching flanges 946 that engage the tooth grooves of a gear in the transmission gear train to prevent rotation. The latch handle 942 is connected to the self-locking clip 941 via the third connecting rod 943 and can be actuated by the operator. The latch handle 942 is formed with an arcuate groove 945, which has a lowest point (low point) and two symmetrical high points (high points). The tension spring 944 is fixed to the connecting frame 91 at one end and connected to a sliding pin at the other end that extends into the groove 945, allowing it to slide along the groove. When the operator turns the clamping handle 942 to the middle position, the tension spring slide pin is at the low position of the groove. At this time, the spring tension is minimal, and the self-locking clamp 941 is disengaged from the gear under the action of gravity or spring force. The winch is in an unlocked state and can be freely rotated and raised. When the clamping handle is turned to either side, the slide pin rises to the high position along the groove 945. At this time, the spring is stretched, generating a large tension and pulling the self-locking clamp 941 toward the gear through the third connecting rod, so that its engaging flange 946 is stuck between the gear teeth, thereby locking the transmission gear set. The winch cannot rotate and the wheel is locked at the current height. The high positions on both sides are symmetrically arranged. Whether the clamping handle is turned to the left or right, locking can be achieved. After locking, the tension spring remains at the high position and will not slide back on its own, thereby ensuring the reliability of self-locking. When unlocking is required, just turn the clamping handle back to the middle position to return the slide pin to the low position.

[0033] To use this cart for wheel removal and installation, first lift and secure the vehicle using a lift. Remove the nuts on the wheel to be replaced, separating the wheel from the hub. Next, push the cart under the wheel and adjust its position using the lockable universal wheels 2, aligning the support frame 13 below the center of the wheel. Press the locking pedal on the universal wheels to secure the cart. Next, carefully lower the wheel to be removed onto the support frame 13, aligning its center roughly with the center of the frame. Once the wheel is on the support frame, the horizontal rollers 15 and vertical rollers 17 can be used to easily adjust the wheel to the desired position and stabilize it.

[0034] To remove a wheel, first attach the crank handle 10 to the second connecting rod 925 (low gear) and pull the latch handle 942 to unlock the winch. Turn the crank handle clockwise, which drives the synchronous gear 923 and the synchronous pinion 922 through the transmission pinion 921, thereby driving the gear winch 93 to rotate and wind up the wire rope 11. The wire rope pulls the connecting seat 8 and the lifting frame 13 upward, lifting the wheel off the ground. When the wheel is raised to a sufficient height, stop cranking the crank handle and pull the latch handle 942 to one side to lock the winch and maintain the wheel at that height. Then, push the cart off the bottom of the vehicle and transport the wheel to the designated location for lowering. To lower the wheel, unlock the winch again and switch the crank handle to the first connecting rod 924 (high gear). Turn the crank handle counterclockwise to lower the lifting frame smoothly and quickly, allowing the wheel to be placed on the ground or workbench.

[0035] When installing a wheel, the process is reversed: Place the wheel to be installed on the lifting frame 13, lock the trolley in place, crank the handle to raise the wheel to a height roughly aligned with the vehicle's hub bolts, then install the crank handle 10 on the second connecting rod 925 (low gear), precisely adjust the position, and lock it. Then, push the trolley to align the wheel with the hub bolts. Slowly loosen the capstan lock, and gently insert the wheel onto the bolts. Once the wheel is flush with the hub, replace it and preliminarily tighten the nuts. Finally, unlock the capstan, lower the lifting frame, and remove the trolley, completing the wheel installation. Throughout this process, maintenance personnel do not need to directly lift the wheel, significantly reducing labor intensity.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lifting type automobile wheel disassembly and assembly cart, comprising a base (1), characterized in that: A tool holding tray (3) is installed inside the base (1), and lockable universal wheels (2) are fixedly installed on the four corners of the bottom of the base (1), a bracket assembly is fixedly installed on the top of the lockable universal wheels (2), a lifting assembly is fixedly installed on one side of the bracket assembly, a lifting assembly is fixedly connected to the lifting assembly, and an output assembly is installed on the top of the lifting assembly; The bracket assembly comprises a frame (4), the frame (4) being fixedly mounted on the top of the base (1), and handles (5) being fixedly mounted on both ends of the top of the base (1); The lifting assembly includes a slide frame (6), the slide frame (6) is fixedly installed on one side of the frame (4), two sliding wheels (7) are slidably installed inside the frame (4), a connecting seat (8) is fixedly installed between the two sliding wheels (7), one end of the connecting seat (8) is fixedly connected to a steel wire rope (11), and one end of the steel wire rope (11) passes through the top of the slide frame (6); The output assembly includes a bidirectional self-locking winch (9), which is fixedly mounted on the top of the chute frame (6), a crank handle (10) is mounted on one side of the bidirectional self-locking winch (9), and one end of the steel wire rope (11) is wound around and connected to the bidirectional self-locking winch (9).

2. A lifting type automobile wheel disassembly and assembly cart according to claim 1, characterized in that: The lifting assembly includes a fixing frame (12), the fixing frame (12) is fixedly mounted on one side of the connecting seat (8), a lifting frame (13) is fixedly mounted on the bottom of the fixing frame (12), two second mounting frames (16) are fixedly mounted on the fixing frame (12), and a vertical roller (17) is rotatably mounted between the two second mounting frames (16).

3. A lifting type automobile wheel disassembly and assembly cart as claimed in claim 2, characterized in that: Two first mounting frames (14) are fixedly mounted on both ends of the top of the lifting frame (13), and a horizontal roller (15) is rotatably mounted between the two corresponding first mounting frames (14).

4. The lifting type automobile wheel disassembly and assembly cart according to claim 1, characterized in that: The bidirectional self-locking winch (9) includes a connecting frame (91), a transmission gear set (92), a gear winch (93), and a self-locking assembly (94). The connecting frame (91) is fixedly mounted on the top of the slide frame (6). The connecting frame (91) is U-shaped. The gear winch (93) is fixedly connected to the connecting frame (91) and the wire rope (11) is wound around the gear winch (93). The transmission gear set (92) is fixed on the connecting frame (91) and meshed with the gear winch (93). The crank (10) is connected to the transmission gear set (92) and drives the transmission gear set (92) to rotate.

5. A lifting type automobile wheel disassembly and assembly cart as claimed in claim 4, characterized in that: The transmission gear set (92) includes a transmission pinion (921), a synchronization pinion (922), a synchronization gear (923), a first connecting rod (924) and a second connecting rod (925). The synchronization pinion (922) and the synchronization gear (923) are arranged concentrically in parallel. The transmission pinion (921) is meshed and connected with the synchronization gear (923). The synchronization pinion (922) is meshed and connected with the gear winch (93). The first connecting rod (924) passes through the synchronization pinion (922) and the synchronization gear (923) respectively, and the output end passes through the connecting frame (91). The second connecting rod (925) passes through the transmission pinion (921) and the output end passes through the connecting frame (91). The crank (10) is connected to the output end of the first connecting rod (924) or the output end of the second connecting rod (925).

6. A lifting type automobile wheel disassembly and assembly cart as claimed in claim 5, characterized in that: The self-locking assembly (94) includes a self-locking clamp (941), a clamping handle (942), a third connecting rod (943) and a tension spring (944). The clamping handle (942) is provided with a groove (945). The groove (945) has a low position and two high positions on both sides of the low position. One end of the tension spring (944) is connected to the connecting frame (91), and the other end slides in the groove (945). One end of the third connecting rod (943) is connected to the clamping handle (942), and the other end is connected to the self-locking clamp (941). One end of the self-locking clamp (941) is connected to the third connecting rod (943) and is rotatably connected to the connecting frame (91), and the other end is engaged with or separated from the transmission gear set (92). When the tension spring (944) slides to the lower position of the groove (945), the self-locking clamp (941) is separated from the transmission gear set (92); when the tension spring (944) slides to the upper position of the groove (945), the self-locking clamp (941) is engaged with the transmission gear set (92).

7. A lifting type automobile wheel disassembly and assembly cart as claimed in claim 6, characterized in that: Clamping flanges (946) are provided on both sides of one end of the self-locking clamp (941) that is clamped to the transmission gear set (92).

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