Universal wheel damping mechanism of draw-bar box

Abstract

The utility model discloses a universal wheel damping mechanism of a draw-bar box, and particularly relates to the technical field of universal wheels, which comprises a pulley, a wheel shaft is fixedly connected to the center of the pulley, fixing frames are movably connected to two ends of the wheel shaft, a sliding groove plate is fixedly connected to the front end of each fixing frame, and a fixing device is fixedly connected to the inner wall of each sliding groove plate. The universal wheel damping mechanism comprises a fixing frame, supporting devices are symmetrically arranged on the two sides of the fixing frame, a first fixing plate is movably connected to the upper end of the fixing frame, and a damping device is fixedly connected to the upper end of the first fixing plate. The structure is simple, practical and effective, meanwhile, the anti-pressure buffering capacity of equipment is improved, pulleys are prevented from being damaged, buffering and damping of the equipment can be reduced, the stability of the equipment structure is effectively improved, and the situation that the equipment structure is damaged and aged and the service life is shortened due to long-time bumping is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of universal wheels, in particular to a universal wheel vibration reduction mechanism for a trolley case. Background Art

[0002] With the increasing popularity of tourism and business travel, trolley cases have become a common carrying tool for people when traveling. Traditional trolley cases are usually equipped with one-way or multi-way wheels at the bottom to facilitate dragging during travel. However, when the existing universal wheels move on uneven roads, vibration and noise problems are more obvious, affecting the user experience. Therefore, it is necessary to design a new type of vibration reduction mechanism to reduce the discomfort and noise generated during dragging.

[0003] Chinese patent document CN205255897U discloses a universal wheel vibration reduction mechanism for a trolley case. It includes a universal shaft, the upper and lower ends of which penetrate the connecting seat and the caster respectively, and the upper and lower ends of the universal shaft are connected to the connecting seat and the caster by punching and riveting. The new universal wheel for luggage has the characteristics of low processing cost, no noise and long service life.

[0004] Although the equipment in the above-mentioned document can reduce noise and lower costs, the equipment has a relatively simple structure, the braking method is inconvenient to operate, it is inconvenient to fix when it does not need to be moved, and the shock absorption effect is poor, so the practicability is low. Utility Model Content

[0005] The main purpose of the utility model is to provide a universal wheel vibration reduction mechanism for a trolley case, which can effectively solve the above-mentioned problem.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A universal wheel vibration reduction mechanism for a trolley case, comprising a pulley, a wheel axle is fixedly connected to the center of the pulley, a fixing frame is movably connected to both ends of the wheel axle, a slide plate is fixedly connected to the front end of the fixing frame, a fixing device is fixedly connected to the inner wall of the slide plate, supporting devices are symmetrically arranged on both sides of the fixing frame, a first fixing plate is movably connected to the upper end of the fixing frame, and a vibration reduction device is fixedly connected to the upper end of the first fixing plate;

[0008] The fixing device comprises a first sliding rod, both ends of which are fixedly connected to the inner wall of the sliding groove plate;

[0009] The supporting device comprises a screw sleeve, the right end of which is threadedly connected to the left end of the fixing frame;

[0010] The shock absorbing device comprises a damper, the lower end of which is fixedly connected to the middle part of the upper end of the first fixing plate.

[0011] Preferably, threaded connectors are provided on both sides of the fixing frame.

[0012] Preferably, the outer wall of the first sliding rod is slidably connected to a sliding block, and the right end of the sliding block is fixedly connected to the first insertion rod.

[0013] Preferably, the left end of the sliding block is fixedly connected to a second plug rod, the upper and lower ends of the second plug rod are symmetrically provided with spring buckles, and the outer wall of the second plug rod is movably connected to a slot plate.

[0014] Preferably, the upper end of the screw sleeve is fixedly connected to a connecting plate, and the upper end of the connecting plate is fixedly connected to a compression rod.

[0015] Preferably, the upper end of the compression rod is fixedly connected to a first spring, and the outer wall of the first spring is slidably connected to a compression cylinder.

[0016] Preferably, the outer wall of the damper is slidably connected to a second spring, and the upper end of the damper is fixedly connected to a second fixing plate.

[0017] Preferably, the four corners of the lower end of the second fixing plate are fixedly connected with second sliding rods, and the outer wall of the second sliding rod is slidably connected with a third spring.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The utility model provides a universal wheel vibration reduction mechanism for a trolley case. The device is equipped with a fixing device, by which the movement and fixation of the pulley can be adjusted according to actual use requirements. When the trolley case needs to be fixed, the pulley can be prevented from moving. By inserting the second plug rod into the slot plate and abutting against the slot plate with the help of a spring buckle, the position of the slider can be fixed to prevent the first plug rod from moving. The second plug rod can be taken out of the slot plate by pressing the spring buckle, and the slider can be released. The left and right adjustment of the slider can drive the first plug rod to move with it. The pulley can be fixed by inserting the first plug rod into the jack opened on the left side of the pulley. The first slide rod is used to make the slider move more smoothly.

[0020] 2. The utility model provides a universal wheel vibration reduction mechanism for a trolley case. The device is equipped with a supporting device, which can provide support for the pulley. The structure is simple, practical and effective. At the same time, the pressure resistance and buffering capacity of the device are improved to prevent the pulley from being damaged. The device can be connected to the left side of the fixed frame by a screw sleeve, so that the device can be easily loaded and unloaded. The upper end of the screw sleeve can be connected and fixed to the compression rod by a connecting plate. A first spring is arranged in the compression cylinder. The compression rod can slide in the compression cylinder by utilizing its elasticity, thereby buffering the pressure generated from above.

[0021] 3. The utility model provides a universal wheel vibration reduction mechanism for a trolley case. The device is equipped with a shock absorbing device, which can reduce the buffering and shock absorption of the device, effectively improve the stability of the device structure, prevent the device structure from being damaged and aged due to long-term bumps, and reduce the service life. The device is connected to the trolley case through a second fixed plate, and a screw hole is opened on the top of the second fixed plate, which can be reinforced with the help of screws. The damper and the elasticity of the second spring can buffer the generated vibration and achieve a certain shock absorption effect. The second sliding rod can movably support the second fixed plate, and the third spring will be compressed while sliding, and the second fixed plate can be reset with the help of the rebound of the third spring, thereby further improving the buffering effect of the device against vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the fixing device structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the support device of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the shock absorbing device of the utility model;

[0026] Figure 5 It is a front view structural schematic diagram of the utility model.

[0027] In the figure: 1. pulley; 2. axle; 3. fixing frame; 4. slide plate; 5. fixing device; 51. first slide bar; 52. slider; 53. first plug rod; 54. second plug rod; 55. spring buckle; 56. slot plate; 6. supporting device; 61. screw sleeve; 62. connecting plate; 63. compression rod; 64. first spring; 65. compression cylinder; 7. first fixing plate; 8. shock absorbing device; 81. damper; 82. second spring; 83. second fixing plate; 84. second slide bar; 85. third spring. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] like Figure 1 and Figure 5As shown, a universal wheel vibration reduction mechanism of a trolley case comprises a pulley 1, a wheel axle 2 is fixedly connected to the center of the pulley 1, a fixing frame 3 is movably connected to both ends of the wheel axle 2, a slide plate 4 is fixedly connected to the front end of the fixing frame 3, a fixing device 5 is fixedly connected to the inner wall of the slide plate 4, the movement and fixation of the pulley 1 can be adjusted according to actual use requirements, and the pulley 1 can be prevented from moving when the trolley case needs to be fixed, supporting devices 6 are symmetrically arranged on both sides of the fixing frame 3, and the pulley 1 can be supported by the fixing device, which has a simple, practical and effective structure, and at the same time improves the pressure resistance and buffering capacity of the equipment to prevent the pulley 1 from being damaged, a first fixing plate 7 is movably connected to the upper end of the fixing frame 3 to facilitate the rotation direction of the pulley 1, and a shock absorbing device 8 is fixedly connected to the upper end of the first fixing plate 7, and the equipment can be buffered and damped by the device, thereby effectively improving the stability of the equipment structure, preventing the equipment structure from being damaged and aged due to long-term bumps, and reducing the service life;

[0030] The fixing device 5 comprises a first slide bar 51, both ends of which are fixedly connected to the inner wall of the slide plate 4 to fix the pulley;

[0031] The support device 6 includes a screw sleeve 61, the right end of which is threadedly connected to the left end of the fixing frame 3 for compression support;

[0032] The shock absorbing device 8 includes a damper 81, the lower end of which is fixedly connected to the middle part of the upper end of the first fixing plate 7 for buffering and shock absorption;

[0033] Threaded connectors are provided on both sides of the fixing frame 3 to facilitate the assembly and disassembly of the supporting components.

[0034] like Figure 2 As shown, the outer wall of the first slide bar 51 is slidably connected with a slide block 52, the right end of the slide block 52 is fixedly connected with a first plug rod 53, the left end of the slide block 52 is fixedly connected with a second plug rod 54, the upper and lower ends of the second plug rod 54 are symmetrically provided with spring buckles 55, and the outer wall of the second plug rod 54 is movably connected with a slot plate 56, by inserting the second plug rod 54 into the slot plate 56, the spring buckle 55 and the slot plate 56 are abutted, the position of the slide block 52 can be fixed to prevent the first plug rod 53 from moving, the second plug rod 54 can be taken out of the slot plate 56 by pressing the spring buckle 55, and the slide block 52 can be released, the left and right adjustment of the slide block 52 can drive the first plug rod 53 to move, the first plug rod 53 is placed in the jacking hole on the left side of the pulley to fix the pulley, and the first slide bar 51 is used to make the slide block 52 move more smoothly;

[0035] like Figure 3As shown, the upper end of the screw sleeve 61 is fixedly connected with a connecting plate 62, the upper end of the connecting plate 62 is fixedly connected with a compression rod 63, the upper end of the compression rod 63 is fixedly connected with a first spring 64, the outer wall of the first spring 64 is slidably connected with a compression cylinder 65, the device can be connected to the left threaded connector of the fixed frame through the screw sleeve 61, so that the device can be easily assembled and unassembled, the upper end of the screw sleeve 61 can be connected and fixed to the lower end of the compression rod 63 through the connecting plate 62, and the compression cylinder 65 is provided with a first spring 64, and the compression rod 63 can slide in the compression cylinder 65 by utilizing its elasticity, so as to buffer the pressure generated from above;

[0036] like Figure 4 As shown, the outer wall of the damper 81 is slidably connected to the second spring 82, the upper end of the damper 81 is fixedly connected to the second fixing plate 83, the lower four corners of the second fixing plate 83 are fixedly connected to the second sliding rod 84, the outer wall of the second sliding rod 84 is slidably connected to the third spring 85, the device is connected to the trolley case through the second fixing plate 83, screw holes are provided on the top of the second fixing plate 83, and can be reinforced with the help of screws, and the damper 81 and the elasticity of the second spring 82 can be used to buffer the generated vibration and achieve a certain shock-absorbing effect, the second fixing plate 83 can be movably supported by the second sliding rod 84, and the third spring 85 will be compressed while sliding, and the second fixing plate 83 can be reset with the help of the rebound of the third spring 85, thereby further improving the buffering effect of the device against vibration.

[0037] The working principle of the utility model is as follows: through the fixing device 5, the spring buckle 55 is pressed to remove the second insertion rod 54 from the card slot plate 56, and then the slider 52 is moved to the right, prompting the first insertion rod 53 to move to the right along with it, until it is inserted into the jack on the left side of the pulley 1, so that the pulley 1 can be fixed. The reverse operation is similar. By using the supporting device 6, the screw sleeve 61 can be quickly loaded and unloaded along the thread. The compression rod 63 can slide in the compression cylinder 65 through the first spring 64, thereby buffering the pressure generated from the top. Through the shock absorbing device 8, the vibration of the equipment is buffered by the elasticity of the damper 81 and the second spring 82, thereby playing a certain shock absorbing role. At the same time, when the equipment is pressed down, the second slide bar 84 is driven to move downward, and then it is reset by the elasticity of the third spring 85, thereby further improving the shock absorbing effect of the equipment.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A universal wheel vibration reduction mechanism for a trolley case, comprising a pulley (1), characterized in that: The center of the pulley (1) is fixedly connected to a wheel axle (2), and both ends of the wheel axle (2) are movably connected to a fixing frame (3), the front end of the fixing frame (3) is fixedly connected to a slide plate (4), the inner wall of the slide plate (4) is fixedly connected to a fixing device (5), and supporting devices (6) are symmetrically arranged on both sides of the fixing frame (3), the upper end of the fixing frame (3) is movably connected to a first fixing plate (7), and the upper end of the first fixing plate (7) is fixedly connected to a shock absorbing device (8); The fixing device (5) comprises a first sliding rod (51), and two ends of the first sliding rod (51) are fixedly connected to the inner wall of the sliding groove plate (4); The supporting device (6) comprises a screw sleeve (61), the right end of the screw sleeve (61) being threadedly connected to the left end of the fixing frame (3); The shock absorbing device (8) comprises a damper (81), the lower end of the damper (81) being fixedly connected to the middle part of the upper end of the first fixing plate (7).

2. The universal wheel vibration reduction mechanism of a trolley case according to claim 1, characterized in that: Threaded connectors are provided on both sides of the fixing frame (3).

3. The universal wheel vibration reduction mechanism of a trolley case according to claim 1, characterized in that: The outer wall of the first sliding rod (51) is slidably connected to a sliding block (52), and the right end of the sliding block (52) is fixedly connected to a first insertion rod (53).

4. The universal wheel vibration reduction mechanism of a trolley case according to claim 3, characterized in that: The left end of the sliding block (52) is fixedly connected to a second insertion rod (54), the upper and lower ends of the second insertion rod (54) are symmetrically provided with spring buckles (55), and the outer wall of the second insertion rod (54) is movably connected to a slot plate (56).

5. The universal wheel vibration reduction mechanism of a trolley case according to claim 1, characterized in that: The upper end of the screw sleeve (61) is fixedly connected to a connecting plate (62), and the upper end of the connecting plate (62) is fixedly connected to a compression rod (63).

6. The universal wheel vibration reduction mechanism of a trolley case according to claim 5, characterized in that: The upper end of the compression rod (63) is fixedly connected to a first spring (64), and the outer wall of the first spring (64) is slidably connected to a compression cylinder (65).

7. The universal wheel vibration reduction mechanism of a trolley case according to claim 1, characterized in that: The outer wall of the damper (81) is slidably connected to a second spring (82), and the upper end of the damper (81) is fixedly connected to a second fixing plate (83).

8. The universal wheel vibration reduction mechanism of a trolley case according to claim 7, characterized in that: The four corners of the lower end of the second fixed plate (83) are fixedly connected to second sliding rods (84), and the outer wall of the second sliding rod (84) is slidably connected to a third spring (85).

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