Suitcase with rollers convenient to replace

Abstract

The utility model relates to the technical field of travel suitcases, and discloses a travel suitcase convenient for replacing rollers, which comprises a draw-bar box, a mounting seat is fixedly mounted at the bottom of the draw-bar box, an adjusting mechanism is arranged in the mounting seat, a supporting mechanism is arranged on the draw-bar box, and the rollers are arranged on the supporting mechanism. The adjusting mechanism comprises a rotating shaft, the rotating shaft is rotatably connected to the inner wall of the mounting seat, two groups of connecting rods are fixedly mounted on the outer wall of the rotating shaft, and connecting seats are fixedly mounted at the ends, away from the rotating shaft, of the two groups of connecting rods. The rotating shaft is matched with the two sets of connecting rods and the connecting bases in a rotating mode, the positions of the two sets of universal wheels can be exchanged, the damaged universal wheels can be replaced in time without tools, journey delay is avoided, and using is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of suitcases, in particular to a suitcase with wheels that are convenient for replacement. Background Art

[0002] A suitcase, also known as a travel case or a trolley case, is a box that is carried with you when you go out and is used to store items. It is one type of luggage. Usually, a suitcase is used to store clothes, personal care products and souvenirs needed for the journey.

[0003] Most suitcases on the market are usually equipped with universal wheels at the bottom to drag the suitcases. However, when encountering bumpy or gravel roads during the journey, the universal wheels are under the pressure of the suitcases and the impact of the bumpy roads, which will greatly reduce the service life of the universal wheels and make them prone to breakage or damage. In addition, there is a lack of tools to disassemble and replace the universal wheels during the journey, making it inconvenient to replace the damaged universal wheels. Utility Model Content

[0004] The utility model aims to provide a suitcase with wheels that are easy to replace, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a travel case that is convenient for replacing rollers, comprising a trolley case, a mounting seat is fixedly installed at the bottom of the trolley case, an adjustment mechanism is arranged inside the mounting seat, and a damaged universal wheel can be replaced in time without the aid of tools by arranging the adjustment mechanism, and a supporting mechanism is arranged on the trolley case, and the trolley case can be lifted up by arranging the supporting mechanism, so as to facilitate the replacement of the damaged universal wheel, and the adjustment mechanism comprises:

[0006] A rotating shaft, the rotating shaft is rotatably connected to the inner wall of the mounting seat, two groups of connecting rods are fixedly installed on the outer wall of the rotating shaft, and the ends of the two groups of connecting rods away from the rotating shaft are fixedly installed with connecting seats, and the side walls of the connecting seats are fixedly installed with universal wheels, and limiting grooves are provided on the two groups of connecting rods. By setting two groups of connecting rods and connecting seats, one universal wheel can be used as the main one, and the other universal wheel can be used as an emergency standby, so as to facilitate timely replacement after damage;

[0007] A latch, wherein the latch is slidably connected to the inner wall of the mounting seat and the latch passes through the mounting seat, a limiting hole is provided on the mounting seat, one side of the latch passes through the limiting groove and fits on the inner wall of the limiting hole, and the other end of the latch is fixedly installed with a limiting block, and the connecting rod can be limited by setting the latch to cooperate with the limiting groove and the limiting hole;

[0008] A spring is sleeved on the outer wall of the latch, one end of the spring is fixedly mounted on the side wall of the limit block, and the other end of the spring is fixedly mounted on the outer wall of the mounting seat.

[0009] Preferably, the supporting mechanism comprises a threaded rod, the threaded rod is rotatably connected to the inner wall of the trolley case, and the threaded rod passes through the trolley case.

[0010] Preferably, a knob is fixedly mounted on the top of the threaded rod, and the threaded rod can be rotated by setting the knob.

[0011] Preferably, the side wall of the trolley case is slidably connected with a sliding rod, the inner wall of the sliding rod is threadedly connected to the outer wall of the threaded rod, and the threaded rod can be provided to drive the sliding rod to slide up and down on the side wall of the trolley case.

[0012] Preferably, a support plate is fixedly mounted on the bottom of the slide bar, and the upper surface of the support plate is in contact with the bottom of the trolley case. The trolley case can be lifted up by arranging the slide bar in conjunction with the support plate.

[0013] Preferably, the latch pin fits into the penetration portion of the limiting groove.

[0014] Compared with the prior art, the utility model provides a suitcase that is convenient for replacing rollers, and has the following beneficial effects:

[0015] 1. The suitcase with easy replacement of rollers can rotate the shaft after releasing the limit of the connecting rod through the latch. The positions of the two sets of universal wheels can be exchanged by rotating the shaft in coordination with the two sets of connecting rods and the connecting seat. The damaged universal wheels can be replaced in time without the help of tools, thus avoiding delays in the journey and making the suitcase more convenient to use.

[0016] 2. The suitcase with easy replacement of rollers can be easily replaced by rotating the threaded rod through a knob to drive the sliding rod threadedly connected thereto to move downward, and the sliding rod and the supporting plate are used to lift the suitcase up to lift the universal wheel off the ground, so that the damaged universal wheel can be easily replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0019] Figure 3 This is a schematic diagram of the overall explosion structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the overall structure of the rotating shaft of the utility model;

[0021] Figure 5For this utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0022] Figure 6 For this utility model Figure 3 Schematic diagram of the enlarged structure at B.

[0023] In the figure: 1. trolley case; 2. mounting seat; 3. adjustment mechanism; 31. rotating shaft; 32. latch; 33. spring; 34. connecting rod; 35. connecting seat; 36. universal wheel; 37. limiting groove; 38. limiting hole; 39. limiting block; 4. supporting mechanism; 41. threaded rod; 42. knob; 43. sliding rod; 44. supporting plate. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a suitcase for convenient replacement of rollers, comprising a trolley case 1, a mounting seat 2 is fixedly installed at the bottom of the trolley case 1, an adjusting mechanism 3 is arranged inside the mounting seat 2, by which a damaged universal wheel 36 can be replaced in time without the aid of tools to avoid delaying the journey, and a supporting mechanism 4 is arranged on the trolley case 1, by which the trolley case 1 can be lifted up to facilitate the replacement of a damaged universal wheel 36.

[0025] The above-mentioned adjustment mechanism 3 includes a rotating shaft 31, a latch pin 32, a spring 33, a connecting rod 34, a connecting seat 35, a universal wheel 36, a limiting groove 37, a limiting hole 38, and a limiting block 39; the rotating shaft 31 is rotatably connected to the inner wall of the mounting seat 2, and two groups of connecting rods 34 are fixedly installed on the outer wall of the rotating shaft 31. The two groups of connecting rods 34 are driven to rotate by the rotating shaft 31, and the positions of the universal wheels 36 on the two groups of connecting seats 35 can be adjusted. By providing two groups of universal wheels 36, when one of them is damaged, it can be replaced in time to avoid delaying the journey. The ends of the two groups of connecting rods 34 away from the rotating shaft 31 are fixedly installed with the connecting seat 35, and the side walls of the connecting seat 35 are fixedly installed with the universal wheel 36, and the connecting seat 35 and the universal wheel 36 are installed by bolts. When the universal wheel 36 is damaged, the universal wheel 36 can be separated from the connecting seat 35 by releasing the bolts between the connecting seat 35 and the universal wheel 36, which is convenient for replacement. A limiting groove 37 is provided, and the latch 32 is slidably connected to the inner wall of the mounting seat 2, and the latch 32 passes through the mounting seat 2, and a limiting hole 38 is provided on the mounting seat 2. One side of the latch 32 passes through the limiting groove 37 and fits the inner wall of the limiting hole 38, and the latch 32 fits the penetration of the limiting groove 37. The other end of the latch 32 is fixedly installed with a limiting block 39. The latch 32 is pulled by the limiting block 39, and the spring 33 is stretched at the same time, so that the latch 32 moves out of the limiting hole 38 and exits the limiting groove. 37, at this time, the connecting rod 34 is separated from the limit of the latch 32, and the rotating shaft 31 can be rotated. The spring 33 is sleeved on the outer wall of the latch 32, one end of the spring 33 is fixedly mounted on the side wall of the limit block 39, and the other end of the spring 33 is fixedly mounted on the outer wall of the mounting seat 2. Through the elastic cooperation of the spring 33 with the limit block 39, the latch 32 can always be tightly attached to the inside of the limit hole 38, and the connecting rod 34 can be limited by the cooperation of the latch 32 with the limit hole 38 and the limit groove 37.

[0026] The above-mentioned supporting mechanism 4 comprises a threaded rod 41, a knob 42, a sliding rod 43 and a supporting plate 44; the threaded rod 41 is rotatably connected to the inner wall of the trolley case 1, and the threaded rod 41 passes through the trolley case 1, a knob 42 is fixedly installed on the top of the threaded rod 41, and a sliding rod 43 is slidably connected to the side wall of the trolley case 1, and the inner wall of the sliding rod 43 is threadedly connected to the outer wall of the threaded rod 41, and the threaded rod 41 is rotated by the knob 42, and the rotation of the threaded rod 41 can drive the sliding rod 43 threadedly connected thereto to slide up and down on the side wall of the trolley case 1, and a supporting plate 44 is fixedly installed on the bottom of the sliding rod 43, and the upper surface of the supporting plate 44 is in contact with the bottom of the trolley case 1, and the supporting plate 44 is driven downward by the sliding rod 43 to be in contact with the ground, and the trolley case 1 is lifted up to lift the universal wheel 36 off the ground, at which time the damaged universal wheel 36 can be conveniently replaced.

[0027] Working principle: when the universal wheel 36 is damaged when the trolley case 1 is used during travel, the latch 32 is first pulled through the limit block 39, and the spring 33 is stretched at the same time, so that the latch 32 moves out of the limit hole 38 and exits the limit slot 37. At this time, the connecting rod 34 is free from the limit of the latch 32, and the rotating shaft 31 can be rotated, so that the rotating shaft 31 drives the intact universal wheel 36 to rotate downward, and drives the damaged universal wheel 36 to rotate upward, so that the damaged universal wheel 36 is lifted off the ground. After the adjustment is completed, the latch 32 is inserted into the inside of the limit slot 37, and passes through the limit slot 37 to fit into the inside of the limit hole 38, so that the connecting rod 34 on the replaced universal wheel 36 can be limited, so that the connecting rod 34 remains vertical with the trolley case 1, and the stability of the universal wheel 36 is maintained, and the damaged universal wheel 36 can be replaced. The damaged universal wheel 36 can be replaced without the aid of tools, which is more convenient to use.

[0028] When the universal wheel 36 needs to be replaced, the threaded rod 41 is rotated by means of the knob 42. The rotation of the threaded rod 41 can drive the sliding rod 43 threadably connected thereto to slide downward on the side wall of the trolley case 1. At the same time, the sliding rod 43 will drive the supporting plate 44 to move downward synchronously, and make the supporting plate 44 fit to the ground, and lift up the trolley case 1 to lift the universal wheel 36 off the ground. At this time, the damaged universal wheel 36 can be conveniently replaced.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A travel case with wheels that can be easily replaced, comprising a trolley case (1), characterized in that: A mounting seat (2) is fixedly mounted on the bottom of the trolley case (1), an adjustment mechanism (3) is arranged inside the mounting seat (2), a supporting mechanism (4) is arranged on the trolley case (1), and the adjustment mechanism (3) comprises: A rotating shaft (31), the rotating shaft (31) is rotatably connected to the inner wall of the mounting seat (2), two groups of connecting rods (34) are fixedly mounted on the outer wall of the rotating shaft (31), a connecting seat (35) is fixedly mounted on one end of the two groups of connecting rods (34) away from the rotating shaft (31), a universal wheel (36) is fixedly mounted on the side wall of the connecting seat (35), and a limiting groove (37) is provided on the two groups of connecting rods (34); A latch (32), wherein the latch (32) is slidably connected to the inner wall of the mounting seat (2), and the latch (32) passes through the mounting seat (2), a limiting hole (38) is provided on the mounting seat (2), one side of the latch (32) passes through the limiting groove (37) and is attached to the inner wall of the limiting hole (38), and the other end of the latch (32) is fixedly mounted with a limiting block (39); A spring (33), wherein the spring (33) is sleeved on the outer wall of the latch (32), one end of the spring (33) is fixedly mounted on the side wall of the limit block (39), and the other end of the spring (33) is fixedly mounted on the outer wall of the mounting seat (2).

2. The suitcase with easy replacement of rollers according to claim 1, characterized in that: The supporting mechanism (4) comprises a threaded rod (41), the threaded rod (41) is rotatably connected to the inner wall of the trolley case (1), and the threaded rod (41) passes through the trolley case (1).

3. The suitcase with easy replacement of rollers according to claim 2, characterized in that: A knob (42) is fixedly mounted on the top of the threaded rod (41).

4. The suitcase with easy replacement of rollers according to claim 1, characterized in that: A sliding rod (43) is slidably connected to the side wall of the trolley case (1), and the inner wall of the sliding rod (43) is threadedly connected to the outer wall of the threaded rod (41).

5. The suitcase with convenient replacement of rollers according to claim 4, characterized in that: A support plate (44) is fixedly mounted on the bottom of the slide bar (43), and the upper surface of the support plate (44) is in contact with the bottom of the trolley case (1).

6. The suitcase with convenient replacement of rollers according to claim 1, characterized in that: The latch pin (32) is fitted with the penetration portion of the limiting groove (37).

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