阅读说明：本技术 一种轮式行李箱 (Wheeled luggage case ) 是由 王春红 夏福兰 于 2021-09-28 设计创作，主要内容包括：本发明涉及行李箱技术领域,具体为一种轮式行李箱,包括外壳,所述外壳的上端外表面中间位置活动安装有顶端把手,所述外壳的后端外表面中间位置活动安装有侧边把手,所述外壳的前端外表面固定安装有均匀分布的垫块,所述外壳的上端外表面靠近右侧的位置活动安装有拉杆,所述外壳的上端外表面靠近拉杆的位置固定安装有开关,所述外壳的下端四个拐角处均固定安装有减震机构,且减震机构均内嵌于外壳的内部,四个所述减震机构的下端均活动安装有轮杆。本发明能够解决行李箱上下楼梯需要人手提的问题,使用者只需要拉着行李箱就可以轻松的上下楼梯,不需要使用者手提着上下楼梯,节省了使用者大量的体力,使用时方便快捷。(The invention relates to the technical field of luggage cases, in particular to a wheeled luggage case which comprises a shell, wherein a top end handle is movably arranged in the middle of the outer surface of the upper end of the shell, a side edge handle is movably arranged in the middle of the outer surface of the rear end of the shell, evenly distributed cushion blocks are fixedly arranged on the outer surface of the front end of the shell, a pull rod is movably arranged at the position, close to the right side, of the outer surface of the upper end of the shell, a switch is fixedly arranged at the position, close to the pull rod, of the outer surface of the upper end of the shell, damping mechanisms are fixedly arranged at four corners of the lower end of the shell, the damping mechanisms are embedded in the shell, and wheel rods are movably arranged at the lower ends of the four damping mechanisms. The invention can solve the problem that the luggage needs to be carried by a person when going up and down stairs, a user can easily go up and down stairs only by pulling the luggage, the user does not need to carry the luggage to go up and down stairs, a large amount of physical power of the user is saved, and the luggage is convenient and quick to use.)

1. A wheeled luggage case comprising a shell (1), characterized in that: the upper end outer surface middle position of the shell (1) is movably provided with a top end handle (2), the rear end outer surface middle position of the shell (1) is movably provided with a side edge handle (6), the front end outer surface of the shell (1) is fixedly provided with evenly distributed cushion blocks (4), the upper end outer surface of the shell (1) is movably provided with a pull rod (3) close to the right side, the upper end outer surface of the shell (1) is fixedly provided with a switch (13) close to the pull rod (3), four corners of the lower end of the shell (1) are fixedly provided with damping mechanisms (10), the damping mechanisms (10) are embedded in the shell (1), the lower ends of the four damping mechanisms (10) are movably provided with wheel rods (7), the lower ends of the wheel rods (7) are rotatably provided with universal wheels (5), and the positions of the right end outer surface of the shell (1) close to the two end edges are provided with cavities (11), wheel set mechanisms (9) are fixedly arranged in the two chambers (11);

the wheel set mechanism (9) comprises a wheel set base (91), an electric telescopic rod (92), a roller (93), a roller bracket (94), a storage battery (95) and a baffle mechanism (8); chamber (11) one side internal surface symmetry fixed mounting has two electric telescopic handle (92), two the one end fixed mounting of electric telescopic handle (92) has wheelset base (91), the one end surface evenly distributed of wheelset base (91) has gyro wheel support (94), the one end of evenly distributed's gyro wheel support (94) is rotated and is connected with gyro wheel (93), chamber (11) are close to the position slidable mounting at opening edge and are had baffle mechanism (8).

2. A wheeled luggage case as claimed in claim 1, wherein: the baffle mechanism (8) comprises a sliding block (81), a compression spring (82), a baffle (83), a T-shaped groove (84) and a first telescopic rod (85); the baffle (83) is arranged at the position close to the edge of the right end opening of the chamber (11) in a sliding way, a T-shaped groove (84) is arranged at the right end of the shell (1) close to one end of the baffle (83), a sliding block (81) is fixedly arranged in the middle of the outer surface of one end of the baffle (83) close to the T-shaped groove (84), one end of the sliding block (81) is fixedly provided with a first telescopic rod (85), one end of the first telescopic rod (85) is fixedly arranged on the shell (1), the annular outer surface of the first telescopic rod (85) is nested with a compression spring (82), one end of the compression spring (82) is fixedly arranged on the outer surface of one end of the sliding block (81), the other end of the compression spring (82) is fixedly arranged on the shell (1), and the sliding block (81), the compression spring (82) and the first telescopic rod (85) are all arranged in the T-shaped groove (84).

3. A wheeled luggage case as claimed in claim 1, wherein: the position of the cavity 11 close to the edge of the opening is provided with a sealing groove (14), a sealing ring (15) is arranged in the sealing groove (14), and the baffle (83) can be just embedded into the sealing groove (14).

4. A wheeled luggage case as claimed in claim 1, wherein: the damping mechanism (10) comprises a rotating shaft (101), a sliding plate (102), a damping shell (103), a second telescopic rod (104), a damping spring (105), a spring base (106) and a buffering mechanism (107); the damping shell (103) is fixedly arranged at the corner of the outer surface of the lower end of the shell (1), a through hole is formed in the center of the outer surface of the lower end of the damping shell (103), a rotating shaft (101) is installed on the inner surface of the through hole in a rotating mode, a sliding plate (102) is movably installed at the upper end of the rotating shaft (101), a spring base (106) is fixedly installed at the center of the upper end of the sliding plate (102), second telescopic rods (104) which are uniformly distributed in a fan shape are movably installed at the upper end of the spring base (106), one end of the second telescopic rod (104) in the middle is fixedly installed on the outer surface of the corner of the shell (1), the second telescopic rod (104) close to one side is rotatably installed on the outer surface of the corner of the shell (1), and the second telescopic rod (104) close to the right side is rotatably installed on the inner surface of the side edge of the damping shell (103), damping spring (105) have all been nested to the annular surface of second telescopic link (104), the lower extreme of pivot (101) is rotated and is connected in the upper end of wheel pole (7), the annular surface of pivot (101) is close to the fixed position of lower extreme one side and is installed buffer gear (107).

5. A wheeled luggage case as claimed in claim 4, wherein: the buffer mechanism (107) comprises a lower support plate (1071), a push rod (1072), a buffer shell (1073), an upper support plate (1074) and a buffer spring (1075); go up the one end fixed mounting of backup pad (1074) and be close to the position of one side at the annular surface lower extreme of pivot (101), the lower surface of going up backup pad (1074) is close to middle position fixed mounting and has buffer housing (1073), the one end threaded connection of buffer housing (1073) has dismantlement end cover (1076), the inside fixed mounting of buffer housing (1073) has buffer spring (1075), the one end fixed mounting of buffer spring (1075) has push rod (1072), and push rod (1072) run through and dismantle end cover (1076) and extend to outside and bottom suspension fagging (1071) fixed connection, the one end fixed mounting of bottom suspension fagging (1071) is in one side surface upper end of wheel pole (7).

6. A wheeled luggage case as claimed in claim 5, wherein: dismantle end cover (1076) threaded connection in the position of buffering casing (1073)'s surface one end, pivot (101) and wheel pole (7) are through axis of rotation (12) swivelling joint.

Technical Field

The invention relates to the technical field of luggage cases, in particular to a wheeled luggage case.

Background

A luggage case is a case that is carried when going out to place an article, and is one type of luggage. The suitcase is used for placing required clothing, personal care articles for use and souvenir on the journey usually, and the suitcase that uses now is the draw-bar box mostly, and the draw-bar box indicates the suitcase that has pull rod and gyro wheel, because of its convenient to use and extensive use, simultaneously, a pull rod is also put because of the case to the draw-bar box, has the branch of single tube pull rod and double-barrelled pull rod, and the pipe of pull rod also has the branch of square pipe and pipe to drag when conveniently walking, alleviate the burden greatly. The draw-bar box can be carried by hand or dragged, and the wheels of the draw-bar box used by people in normal times are basically positioned at the bottom of the draw-bar box.

The Chinese patent discloses a suitcase capable of going up and down stairs, the patent application number is 201320066262.9, the suitcase capable of going up and down stairs comprises a suitcase with a pull rod, the rear parts of the two sides of the suitcase are provided with large rollers, the height of the large rollers is the same as that of the steps of the common stairs, and the diameter of the large rollers is 15-25 cm under the general condition. In order to improve the wear resistance of the luggage case, a wear-resistant material layer is arranged on the rear side surface of the luggage case and arranged on two sides of the lower part of the rear side surface of the luggage case. The luggage case not only can run in the environment of stairs, is durable, but also is beneficial to eliminating the fatigue of the journey.

Although the wheeled suitcase of current contrast patent can use under the environment of stair, need not carry suitcase upstairs, reduce the consumption of people's strength, be favorable to eliminating the fatigue of journey, in addition, owing to set up wear-resistant material on the trailing flank of big suitcase, when climbing stair, the suitcase trailing flank is unlikely to direct touching step, with the complete pleasing to the eye of safe suitcase trailing flank, increase of service life, make the suitcase more durable, but the great wheel of the trailing wheel used diameter of prior art, when going stair, the suitcase can produce great jolt vibrations, when meetting the stair of step face broad, it just can continue to advance along stair with more strength to need the user, because the big wheel when above-mentioned contrast patent used, can't accomplish the nimble convenience of universal wheel when going on level and smooth ground.

To this end, a wheeled luggage case is proposed.

Disclosure of Invention

The present invention is directed to a wheeled luggage case to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: a wheeled luggage case comprises a shell, wherein a top end handle is movably mounted in the middle of the outer surface of the upper end of the shell, a side edge handle is movably mounted in the middle of the outer surface of the rear end of the shell, evenly distributed cushion blocks are fixedly mounted on the outer surface of the front end of the shell, a pull rod is movably mounted at the position, close to the right side, of the outer surface of the upper end of the shell, a switch is fixedly mounted at the position, close to the pull rod, of the outer surface of the upper end of the shell, damping mechanisms are fixedly mounted at four corners of the lower end of the shell, the damping mechanisms are embedded in the shell, wheel rods are movably mounted at the lower ends of the four damping mechanisms, universal wheels are rotatably mounted at the lower ends of the wheel rods, cavities are formed in the positions, close to the edges of the two ends, of the outer surface of the right end of the shell, and wheel group mechanisms are fixedly mounted in the two cavities;

the wheel set mechanism comprises a wheel set base, an electric telescopic rod, a roller bracket, a storage battery and a baffle mechanism; the inner surface of one side of the cavity is symmetrically and fixedly provided with two electric telescopic rods, one end of each electric telescopic rod is fixedly provided with a wheel set base, the outer surface of one end of each wheel set base is uniformly provided with a roller support, one end of each roller support is rotatably connected with a roller, and the position of the cavity close to the edge of the opening is slidably provided with a baffle mechanism.

The rear wheels in the prior art use wheels with larger diameters, so that the luggage case can generate larger jolting vibration when going upstairs, and when encountering a staircase with a wider step surface, a user can continue to advance along the staircase by using more strength, and the large wheels used in the patent are heavy when running on a flat ground, so that the flexibility and convenience of the universal wheels cannot be realized; when the trolley is in need of going upstairs, the baffle mechanism is pulled to enter the T-shaped groove, the switch is pressed to enable the electric telescopic rod to be electrified and extended, the electric telescopic rod drives the wheel set base to move in the direction far away from the electric telescopic rod, the wheel set base drives the roller support to move, the roller support drives the roller to move, when half of the wheel set base stops outside the cavity, the roller is completely outside the cavity, then the trolley is placed on the stairs, then the trolley is pulled to walk forwards along the stairs, after the stairs are walked, the switch is pressed to shorten the electric telescopic rod, the electric telescopic rod drives the wheel set base to move in the direction close to the electric telescopic rod, the wheel set base drives the roller support to move, the roller support drives the roller to move until the roller completely enters the cavity, then the baffle mechanism is pulled to seal the opening of the cavity, the universal wheels at the bottom of the luggage case are used for moving forwards, the problem that the luggage case needs to be carried by a person when going upstairs and downstairs is solved by arranging the wheel set mechanism, the user can go upstairs and downstairs by pulling the baffle mechanism and then pressing the switch, the user can go upstairs and downstairs easily by pulling the luggage case, the user does not need to carry the luggage case to go upstairs and downstairs by hand, a large amount of physical power of the user is saved, the use is convenient and fast, the universal wheels at the bottom of the luggage case are used for moving when the luggage case is on a flat ground, the universal wheels are used for moving flexibly and smoothly, and the heavy feeling of the large wheels cannot occur.

Preferably, the baffle mechanism comprises a sliding block, a compression spring, a baffle, a T-shaped groove and a first telescopic rod; baffle slidable mounting is in the position that cavity right-hand member opening is close to the edge, T type groove has been seted up to the position that the right-hand member of shell is close to baffle one end, the fixed slider of having installed in the one end surface intermediate position that the baffle is close to T type groove, the one end fixed mounting of slider has first telescopic link, the one end fixed mounting of first telescopic link in the shell, the annular surface nestification of first telescopic link has compression spring, compression spring's one end fixed mounting is in the one end surface of slider, compression spring's other end fixed mounting is in the shell, just slider, compression spring and first telescopic link are all installed in T type inslot.

When the luggage case is used, the cavity is in an open state, the wheel set mechanism is exposed to the external environment, dust, sundries, rainwater and the like in the external environment can enter the cavity, the cavity can be filled with a large amount of dust, sundries and rainwater after long-time use, the normal use of the wheel set mechanism can be influenced, even the wheel set mechanism can be corroded, and the service life of the wheel set mechanism is shortened. Until the baffle seals the cavity opening completely, when not using wheelset mechanism, the baffle can seal the cavity, can effectually prevent that dust debris and rainwater etc. of external environment from entering into the cavity, has reduced the influence of external environment to wheelset mechanism, has reduced the corruption to wheelset mechanism, has improved wheelset mechanism's life.

Preferably, a sealing groove is formed in the position, close to the edge of the opening, of the cavity, a sealing ring is arranged in the sealing groove, and the baffle can be just embedded into the sealing groove.

When the luggage case works, dust and rainwater still permeate into the strong chamber from gaps between the baffle and the edge of the opening of the chamber, and the dust and the rainwater are further prevented from permeating into the chamber by arranging the sealing groove and the sealing ring.

Preferably, the damping mechanism comprises a rotating shaft, a sliding plate, a damping shell, a second telescopic rod, a damping spring, a spring base and a buffering mechanism; the damping shell is fixedly arranged at the corner of the outer surface of the lower end of the shell, a through hole is arranged at the center of the outer surface of the lower end of the damping shell, and the inner surface of the through hole is rotatably provided with a rotating shaft, the upper end of the rotating shaft is movably provided with a sliding plate, the central position of the upper end of the sliding plate is fixedly provided with a spring base, the upper end of the spring base is movably provided with second telescopic rods which are uniformly distributed in a fan shape, one end of the second telescopic rod in the middle is fixedly arranged on the outer surface of the corner of the shell, the second telescopic rod close to one side is rotatably arranged on the outer surface of the corner of the shell, the second telescopic rod close to the right side is rotatably arranged on the inner surface of the side edge of the damping shell, the damping spring is nested on the annular outer surface of the second telescopic rod, the lower end of the rotating shaft is connected to the upper end of the wheel rod in a rotating mode, and a buffering mechanism is fixedly mounted on the position, close to one side of the lower end, of the annular outer surface of the rotating shaft.

When the suitcase is used on an uneven road surface, the suitcase can generate bumping vibration, and damage to easily damaged articles in the suitcase can be caused, so that inconvenience is brought to a user, the invention reduces the bumping vibration generated on the uneven road surface by arranging the damping mechanism, when the suitcase is used on the uneven road surface, the uneven road surface enables the universal wheels to move upwards, the universal wheels drive the wheel rods to move upwards, the wheel rods drive the rotating shafts to move upwards, the rotating shafts drive the sliding plates to move upwards, the sliding plates drive the spring bases to move upwards to drive the spring bases to drive the second telescopic rods to shorten the damping springs nested on the second telescopic rods to be compressed, then the damping springs can slowly release elastic potential energy, at the moment, the damping springs drive the second telescopic rods to slowly extend, the second telescopic rods drive the suitcase shells to slowly move upwards, when the suitcase is used on the even road surface, the damping mechanism can effectively reduce bumping vibration generated by the suitcase, the vulnerable articles in the luggage case are protected from being damaged.

Preferably, the buffer mechanism comprises a lower support plate, a push rod, a buffer shell, an upper support plate and a buffer spring; the one end fixed mounting of going up the backup pad is close to the position of one side in the annular surface lower extreme of pivot, the lower surface of going up the backup pad is close to middle position fixed mounting and has buffering casing, the one end threaded connection of buffering casing has the dismantlement end cover, the inside fixed mounting of buffering casing has buffer spring, buffer spring's one end fixed mounting has the push rod, and the push rod runs through to dismantle the end cover and extend to outside and bottom suspension fagging fixed connection, the one end fixed mounting of bottom suspension fagging is in one side surface upper end of round pole.

When the luggage case is in a large pothole or obstacle, the damping effect of the damping mechanism is reduced due to large bumping degree, and the luggage case cannot be effectively damped, the problem that the damping effect of the damping mechanism is weakened when the luggage case is in the large pothole or obstacle is solved by arranging the damping mechanism, when the luggage case is in the large pothole or obstacle, the universal wheel rotates by a certain angle, the wheel rod drives the lower supporting plate to rotate by a certain angle, the lower supporting plate drives the push rod to move, the push rod drives the push rod to drive the buffer spring to stretch, the buffer spring has elastic potential energy, when the luggage case passes through the large pothole or obstacle, the buffer spring slowly releases the elastic potential energy, the buffer spring drives the push rod, the lower supporting plate, the wheel rod and the universal wheel to reset, and the bumping vibration can be effectively reduced when the luggage case encounters the large pothole or obstacle by arranging the damping mechanism, then, the large depression or obstacle is crossed, and the large bumping and shaking are avoided.

Preferably, the disassembling end cover is connected to one end of the outer surface of the buffering shell in a threaded mode, and the rotating shaft is connected with the wheel rod in a rotating mode through the rotating shaft.

When the universal wheel is disassembled, the disassembling end cover is screwed off, then the rotating shaft is disassembled, the universal wheel can be disassembled for maintenance and replacement, and the disassembling is convenient and quick.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention solves the problem that the luggage needs to be carried by people when going upstairs and downstairs by arranging the wheel set mechanism, the user can go upstairs and downstairs by pulling the baffle mechanism and then pressing the switch, the user can go upstairs and downstairs easily by pulling the luggage, the user does not need to carry the luggage by hand, a large amount of physical power of the user is saved, the use is convenient and quick, the universal wheels at the bottom of the luggage are used for moving when the luggage is on a flat ground, the movement is flexible and smooth by using the universal wheels, and the feeling of heavy large wheels is avoided.

2. According to the invention, the problem that the wheel set mechanism is exposed to the external environment is solved by arranging the baffle plate mechanism, and the baffle plate can effectively prevent dust, impurities, rainwater and the like in the external environment from entering the chamber, so that the influence of the external environment on the wheel set mechanism is reduced, the corrosion to the wheel set mechanism is reduced, and the service life of the wheel set mechanism is prolonged; the sealing groove and the sealing ring are arranged to further prevent dust and rainwater from permeating into the cavity; the shock absorption mechanism can effectively reduce bumping and shaking generated by the luggage case, and protect vulnerable articles in the luggage case from being damaged; the buffer mechanism is arranged, so that the bumping vibration can be effectively reduced when the buffer mechanism encounters a large pothole or obstacle, and then the buffer mechanism passes over the large pothole or obstacle, so that the generation of large bumping vibration is avoided; the universal wheel can be conveniently and quickly detached and replaced by detaching the end cover and the rotating shaft.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a structural view of the wheelset mechanism of the present invention;

FIG. 4 is a structural view of the flapper mechanism of the present invention;

FIG. 5 is a rear view of the present invention;

FIG. 6 is a side cross-sectional view of the shock absorbing mechanism of the present invention;

FIG. 7 is an enlarged structural view of the shock absorbing mechanism of the present invention;

fig. 8 is an enlarged structural view of the damper mechanism of the present invention.

In the figure: 1. a housing; 2. a top end handle; 3. a pull rod; 4. cushion blocks; 5. a universal wheel; 6. a side handle; 7. a wheel lever; 8. a baffle mechanism; 81. a slider; 82. a compression spring; 83. a baffle plate; 84. a T-shaped groove; 85. a first telescopic rod; 9. a wheel set mechanism; 91. a wheel set base; 92. an electric telescopic rod; 93. a roller; 94. a roller bracket; 95. a storage battery; 10. a damping mechanism; 101. a rotating shaft; 102. a slide plate; 103. a shock-absorbing housing; 104. a second telescopic rod; 105. a damping spring; 106. a spring mount; 107. a buffer mechanism; 1071. a lower support plate; 1072. a push rod; 1073. a buffer housing; 1074. an upper support plate; 11. a chamber; 12. a rotating shaft; 13. a switch; 14. a sealing groove; 15. and (4) a sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, the present invention provides a wheel type luggage case, which comprises:

a wheeled luggage case comprises a shell 1, wherein a top end handle 2 is movably mounted at the middle position of the outer surface of the upper end of the shell 1, a side edge handle 6 is movably mounted at the middle position of the outer surface of the rear end of the shell 1, evenly distributed cushion blocks 4 are fixedly mounted on the outer surface of the front end of the shell 1, a pull rod 3 is movably mounted at the position, close to the right side, of the outer surface of the upper end of the shell 1, a switch 13 is fixedly mounted at the position, close to the pull rod 3, of the outer surface of the upper end of the shell 1, damping mechanisms 10 are fixedly mounted at four corners of the lower end of the shell 1, the damping mechanisms 10 are embedded in the shell 1, wheel rods 7 are movably mounted at the lower ends of the four damping mechanisms 10, universal wheels 5 are rotatably mounted at the lower ends of the wheel rods 7, and cavities 11 are formed in the positions, close to the edges of the outer surface of the right end of the shell 1, wheel set mechanisms 9 are fixedly arranged in the two cavities 11;

the wheel set mechanism 9 comprises a wheel set base 91, an electric telescopic rod 92, a roller 93, a roller bracket 94, a storage battery 95 and a baffle mechanism 8; two electric telescopic handle 92 are symmetrically and fixedly installed on the inner surface of one side of the cavity 11, two wheel set bases 91 are fixedly installed at one ends of the electric telescopic handle 92, roller wheel supports 94 are uniformly distributed on the outer surface of one end of each wheel set base 91, rollers 93 are rotatably connected to one ends of the uniformly distributed roller wheel supports 94, and baffle mechanisms 8 are slidably installed at positions, close to the edges of the openings, of the cavity 11.

The rear wheels in the prior art use wheels with larger diameters, so that the luggage case can generate larger jolting vibration when going upstairs, and when encountering a staircase with a wider step surface, a user can continue to advance along the staircase by using more strength, and the large wheels used in the patent are heavy when running on a flat ground, so that the flexibility and convenience of the universal wheels 5 cannot be realized; when the multifunctional trolley is in need of going upstairs, firstly, the baffle mechanism 8 is pulled to enable the baffle mechanism 8 to enter the T-shaped groove 84, then the switch 13 is pressed to enable the electric telescopic rod 92 to be electrified and extended, the electric telescopic rod 92 drives the wheel set base 91 to move in the direction far away from the electric telescopic rod 92, the wheel set base 91 drives the roller support 94 to move, the roller support 94 drives the roller 93 to move, when half of the wheel set base 91 is stopped outside the cavity 11, the roller 93 is completely outside the cavity 11, then the suitcase is placed on the stairs, then the suitcase is pulled to walk forwards along the stairs, after the stairs are walked, the switch 13 is pressed to enable the electric telescopic rod 92 to be shortened, the electric telescopic rod 92 drives the wheel set base 91 to move in the direction near the electric telescopic rod 92, the wheel set base 91 drives the roller support 94 to move, the roller support 94 drives the roller 93 to move, the trolley luggage case has the advantages that the trolley wheels 93 completely enter the cavity 11, the opening of the cavity 11 is closed by pulling the baffle mechanism 8, and then the universal wheels 5 at the bottom of the luggage case are used for moving forwards.

As an embodiment of the present invention, as shown in fig. 4, the baffle mechanism 8 includes a sliding block 81, a compression spring 82, a baffle 83, a T-shaped groove 84, and a first telescopic rod 85; the baffle 83 is slidably mounted at a position close to the edge of an opening at the right end of the chamber 11, a T-shaped groove 84 is formed at a position close to one end of the baffle 83 at the right end of the housing 1, a sliding block 81 is fixedly mounted at the middle position of the outer surface of one end of the baffle 83 close to the T-shaped groove 84, a first telescopic rod 85 is fixedly mounted at one end of the sliding block 81, one end of the first telescopic rod 85 is fixedly mounted at the housing 1, a compression spring 82 is nested on the annular outer surface of the first telescopic rod 85, one end of the compression spring 82 is fixedly mounted at the outer surface of one end of the sliding block 81, the other end of the compression spring 82 is fixedly mounted at the housing 1, and the sliding block 81, the compression spring 82 and the first telescopic rod 85 are all mounted in the T-shaped groove 84; when the luggage case works, when the luggage case is used, the cavity 11 is in an open state, the wheel set mechanism 9 can be exposed to the external environment, dust, sundries, rainwater and the like in the external environment can enter the cavity 11, the cavity 11 can be filled with a large amount of dust, sundries and rainwater after long-term use, the normal use of the wheel set mechanism 9 can be influenced, even the wheel set mechanism 9 can be corroded, and the service life of the wheel set mechanism 9 is shortened. First telescopic link 85 extension, slider 81 is driving baffle 83 and is moving to the direction that is close to cavity 11 open-ended, until the complete totally closed cavity 11 open-ended of baffle 83, when not using wheelset mechanism 9, cavity 11 can be sealed to baffle 83, can effectually prevent that the dust debris and the rainwater of external environment etc. from entering into in cavity 11, reduced the influence of external environment to wheelset mechanism 9, reduced the corruption to wheelset mechanism 9, improved wheelset mechanism 9's life.

As an embodiment of the present invention, as shown in fig. 3 and 4, a sealing groove 14 is formed in a position of the chamber 11 near an edge of the opening, a sealing ring 15 is disposed in the sealing groove 14, and the baffle 83 can be just embedded into the sealing groove 14; in operation, when the luggage case is used, dust and rainwater can still infiltrate into the strong chamber from the gap between the baffle 83 and the opening edge of the chamber 11, and the dust and rainwater can be further prevented from infiltrating into the chamber 11 by the sealing groove 14 and the sealing ring 15.

As an embodiment of the present invention, as shown in fig. 5 to fig. 7, the damping mechanism 10 includes a rotating shaft 101, a sliding plate 102, a damping housing 103, a second telescopic rod 104, a damping spring 105, a spring base 106, and a buffer mechanism 107; the damping shell 103 is fixedly installed at a corner of the outer surface of the lower end of the shell 1, a through hole is formed in the center of the outer surface of the lower end of the damping shell 103, a rotating shaft 101 is installed on the inner surface of the through hole in a rotating manner, a sliding plate 102 is movably installed at the upper end of the rotating shaft 101, a spring base 106 is fixedly installed at the center of the upper end of the sliding plate 102, second telescopic rods 104 which are uniformly distributed in a fan shape are movably installed at the upper end of the spring base 106, one end of the second telescopic rod 104 in the middle is fixedly installed on the outer surface of the corner of the shell 1, the second telescopic rod 104 which is close to one side is rotatably installed on the outer surface of the corner of the shell 1, the second telescopic rod 104 which is close to the right side is rotatably installed on the inner surface of the side edge of the damping shell 103, damping springs 105 are nested on the annular outer surfaces of the second telescopic rods 104, and the lower end of the rotating shaft 101 is rotatably connected to the upper end of the wheel rod 7, a buffer mechanism 107 is fixedly arranged at the position of one side of the annular outer surface of the rotating shaft 101, which is close to the lower end; when the suitcase works on an uneven road surface, the suitcase generates bumping vibration and damages easily damaged articles in the suitcase, which causes inconvenience to users, the invention reduces the bumping vibration generated on the uneven road surface by arranging the damping mechanism 10, when on the uneven road surface, the uneven road surface enables the universal wheel 5 to move upwards, the universal wheel 5 drives the wheel rod 7 to move upwards, the wheel rod 7 drives the rotating shaft 101 to move upwards, the rotating shaft 101 drives the sliding plate 102 to move upwards, the sliding plate 102 drives the spring base 106 to move upwards, the spring base 106 drives the second telescopic rod 104 to shorten, the damping spring 105 nested on the second telescopic rod 104 is compressed, then the damping spring 105 can slowly release elastic potential energy, the damping spring 105 drives the second telescopic rod 104 to slowly extend, the second telescopic rod 104 drives the suitcase shell 1 to slowly move upwards, when the luggage case is used on a flat road surface, the damping mechanism 10 can effectively reduce bumping and vibration generated by the luggage case, and protect vulnerable articles in the luggage case from being damaged.

As an embodiment of the present invention, as shown in fig. 8, the buffer mechanism 107 includes a lower support plate 1071, a push rod 1072, a buffer housing 1073, an upper support plate 1074, and a buffer spring 1075; one end of the upper supporting plate 1074 is fixedly installed at a position close to one side of the lower end of the annular outer surface of the rotating shaft 101, a buffer housing 1073 is fixedly installed at a position close to the middle of the lower surface of the upper supporting plate 1074, a disassembly end cap 1076 is connected to one end of the buffer housing 1073 through threads, a buffer spring 1075 is fixedly installed inside the buffer housing 1073, a push rod 1072 is fixedly installed at one end of the buffer spring 1075, the push rod 1072 penetrates through the disassembly end cap 1076 to extend to the outside to be fixedly connected with the lower supporting plate 1071, and one end of the lower supporting plate 1071 is fixedly installed at the upper end of the outer surface of one side of the wheel rod 7; when the suitcase works, but when a large pothole or obstacle is encountered, the shock absorption effect of the shock absorption mechanism 10 is reduced due to large bumping degree, and the suitcase cannot be effectively damped, the problem that the shock absorption effect of the shock absorption mechanism 10 is weakened when the pothole or obstacle is encountered is solved by arranging the buffer mechanism 107, when the pothole or obstacle is encountered, the universal wheel 5 rotates at a certain angle, the wheel rod 7 drives the lower support plate 1071 to rotate at a certain angle, the lower support plate 1071 drives the push rod 1072 to move, the push rod 1072 drives the buffer spring 1075 to stretch, the buffer spring 1075 has elastic potential energy, when the pothole or obstacle is crossed, the buffer spring 1075 slowly releases the elastic potential energy, the buffer spring drives the push rod 1072, the lower support plate 1071, the wheel rod 7 and the universal wheel 5 to reset, and when the pothole or obstacle is encountered, the bumping vibration can be effectively reduced by arranging the buffer mechanism 107, then, the large depression or obstacle is crossed, and the large bumping and shaking are avoided.

As an embodiment of the present invention, as shown in fig. 8, the detaching cap 1076 is screwed to an end of the outer surface of the buffer housing 1073, and the rotating shaft 101 is rotatably connected to the wheel shaft 7 through the rotating shaft 12; when the universal wheel 5 is damaged, the universal wheel 5 needs to be detached for maintenance and replacement, the detachable end cover 1076 and the rotating shaft 12 are arranged, so that the universal wheel 5 can be conveniently and quickly detached and replaced, when the universal wheel 5 is detached, the detachable end cover 1076 is screwed off, then the rotating shaft 12 is detached, and the universal wheel 5 can be detached for maintenance and replacement, so that the detachment is convenient and quick.

The using method comprises the following steps: when the invention is used, when the invention needs to go upstairs, firstly, the sliding block 81 is pulled to move in the direction far away from the opening of the cavity 11, the sliding block 81 drives the baffle 83 to move close to the bottom of the T-shaped groove 84, the sliding block 81 drives the first telescopic rod 85 to shorten, the baffle 83 slides into the T-shaped groove 84, then the switch 13 is pressed, the electric telescopic rod 92 is electrified to extend, the electric telescopic rod 92 drives the wheel set base 91 to move in the direction far away from the electric telescopic rod 92, the wheel set base 91 drives the roller bracket 94 to move, the roller bracket 94 drives the roller 93 to move, when half of the wheel set base 91 is stopped outside the cavity 11, the roller 93 is completely outside the cavity 11, then the suitcase is put on the stairs, then the suitcase is pulled to walk forwards along the stairs, after the stairs are finished, the switch 13 is pressed to shorten the electric telescopic rod 92, the electric telescopic rod 92 drives the wheel set base 91 to move in the direction close to the electric telescopic rod, the wheel set base 91 drives the roller support 94 to move, the roller support 94 drives the roller 93 to move until the roller 93 completely enters the cavity 11, then the sliding block 81 is pulled to move towards the direction close to the opening of the cavity 11, the first telescopic rod 85 extends, the sliding block 81 drives the baffle 83 to move towards the direction close to the opening of the cavity 11 until the baffle 83 completely closes the opening of the cavity 11, and then the universal wheel 5 at the bottom of the luggage case is used for moving forwards; when the luggage case meets uneven road surfaces, the uneven road surfaces enable the universal wheels 5 to move upwards, the universal wheels 5 drive the wheel rods 7 to move upwards, the wheel rods 7 drive the rotating shafts 101 to move upwards, the rotating shafts 101 drive the sliding plates 102 to move upwards, the sliding plates 102 drive the spring bases 106 to move upwards, the spring bases 106 drive the second telescopic rods 104 to shorten, the damping springs 105 nested on the second telescopic rods 104 are compressed, then the damping springs 105 can slowly release elastic potential energy, the damping springs 105 drive the second telescopic rods 104 to slowly extend, and the second telescopic rods 104 drive the luggage case shell 1 to slowly move upwards; when a large pothole or obstacle is encountered, the universal wheel 5 rotates by a certain angle, the wheel rod 7 drives the lower support plate 1071 to rotate by a certain angle, the lower support plate 1071 drives the push rod 1072 to move, the push rod 1072 drives the push rod 1072 to drive the buffer spring 1075 to stretch, the buffer spring 1075 has elastic potential energy, when the pothole or obstacle is crossed, the buffer spring 1075 slowly releases the elastic potential energy, and the buffer spring drives the push rod 1072, the lower support plate 1071, the wheel rod 7 and the universal wheel 5 to reset; when the universal wheel 5 is disassembled, the disassembling end cover 1076 is screwed off, then the rotating shaft 12 is disassembled, the universal wheel 5 can be disassembled to be maintained and replaced, and the disassembling is convenient and fast.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.