CN107259743B

CN107259743B - Electric luggage case

Info

Publication number: CN107259743B
Application number: CN201710556366.0A
Authority: CN
Inventors: 伍毅
Original assignee: Chongqing Yingang Technology Group Co Ltd
Current assignee: Chongqing Yingang Technology Group Co Ltd
Priority date: 2017-07-07
Filing date: 2017-07-07
Publication date: 2023-03-28
Anticipated expiration: 2037-07-07
Also published as: CN107259743A

Abstract

The invention discloses an electric luggage case, which comprises an electric drive device and a case, wherein a pedal with a telescopic structure is arranged at the bottom end of the case, so that the pedal can be stored at the bottom of the case; the pedal is connected with the box through two symmetrically arranged crank link mechanisms, or the pedal is connected with the box through a crank slider mechanism; and the box bottom is provided with a locking mechanism for locking the pedal in an extending and retracting state. Preferably, the bottom of the box is provided with a base which is provided with a pedal storage space; the locking mechanism is of a lever bolt structure, and the lever bolt structure keeps a locking state through a torsion spring. The telescopic luggage case has the beneficial effects that the pedals of the luggage case are stretched through the symmetrically arranged double-crank connecting rod mechanisms or the crank sliding block mechanisms to replace the traditional simple sliding guide rail pair, so that the phenomena of looseness and clamping stagnation caused by the abrasion of the guide rails are reduced or avoided. The telescopic device has the advantages of simple structure, flexible and reliable extension and long service life.

Description

Electric luggage case

Technical Field

The invention relates to travel articles, in particular to an electric luggage case integrating a case and a travel tool.

Background

The travel suitcase is one of necessary products for business people who frequently rush between large and medium cities or travel enthusiasts who frequently go out for travel and leisure. Although existing suitcases have casters to facilitate towing and moving without carrying on the shoulder, they are still a nuisance for such people. In addition, after people arrive at an airport or a station of another place from one place, people need to transfer local vehicles to arrive at the collapse place, such as city buses, taxis, special vehicles and the like. Due to various factors such as time and environment, the local vehicles are often inconvenient to transfer. The electric travel suitcase combining the travel suitcase and the electric vehicle is provided in the prior art, and can solve the trouble of manually dragging the travel suitcase and even be used as a travel tool to solve the trouble of changing local vehicles or the last kilometer distance. The main body of the electric traveling case is mainly born by a retractable or foldable pedal. The telescopic structure of the electric luggage case with the existing telescopic pedal is usually connected only through a sliding guide rail pair, and the telescopic mode easily causes the abrasion of the guide rail to occur loose or blocked, so that the telescopic flexibility is poor, and the service life is influenced. For this reason, further improvement is required.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an electric luggage case, wherein the pedals of the electric luggage case are stretched and contracted through a double-crank connecting rod mechanism or a crank sliding block mechanism which are symmetrically arranged, so that the traditional simple sliding guide rail pair is replaced, and the phenomena of looseness and clamping stagnation caused by the abrasion of the guide rail are reduced or avoided. The telescopic device has the advantages of simple structure, flexible and reliable extension and long service life.

In order to achieve the purpose, the invention adopts the following technical scheme.

An electric luggage case comprises an electric drive device and a case, wherein a flexible structure pedal is arranged at the bottom end of the case, so that the pedal can be stored at the bottom of the case; the pedals are connected with the box through two symmetrically arranged crank link mechanisms, or the pedals are connected with the box through a crank slider mechanism; and the box bottom is provided with a locking mechanism for locking the pedal in an extending and retracting state.

The invention adopting the technical scheme comprises two schemes, wherein one scheme is that the pedal forms a telescopic structure at the bottom of the box through a double-crank connecting rod structure, and the other scheme is that the pedal forms the telescopic structure through a crank sliding block mechanism. Meanwhile, the pedals are locked in the extending or contracting state through the locking mechanisms in the two schemes, so that the pedals are stably in the bearing or carrying state. In the double-crank connecting rod mechanism, the double-crank connecting rod mechanism is connected in a hinged mode, when the pedal is pushed and pulled under the action of external force, the pedal drives the two symmetrically arranged connecting rods to swing towards opposite directions within a certain angle range, the two connecting rods respectively drive the two cranks to swing towards opposite directions, the left and right motions of the connecting points of the two connecting rods and the pedal are mutually offset, and the left and right motions of the connecting points of the two cranks and the connecting rods are mutually offset, so that the requirement of telescopic motion of the pedal moving according to a set direction is met. Compared with the prior art, the pedal is limited in movement direction only through the sliding guide rail pair mode, sliding abrasion links are correspondingly eliminated, the phenomena of looseness and clamping stagnation of the pedal are avoided, the pedal is flexible and reliable in stretching and retracting, the service life is long, the structure is simple, and the operation is convenient. In slider-crank mechanism, base and footboard form the slider structure, and the crank connecting rod only needs to set up a set of and is used for bearing, and the footboard as the slider only need through the vice cooperation structure restriction moving direction of guide rail that forms with the base, can show the frictional wear who reduces between footboard and the base, reduces the probability that the footboard pine is spacious and the jamming phenomenon appears, can effectively increase of service life.

Preferably, the box bottom is provided with a base, and the base is provided with a pedal storage space; the two crank connecting rod mechanisms respectively comprise a crank with one end hinged on the base, the other end of the crank is hinged with one end of a connecting rod, and the other end of the connecting rod is hinged with the pedal; the locking mechanism is arranged through the base. The pedal is stored in the base of the box, the carrying is convenient, the structure is simple, and the locking is firm and reliable.

Further preferably, the connecting end of the crank and the connecting rod is engaged by a U-shaped yoke structure formed in the thickness direction. The U-shaped fork forms plug-in type matching, so that the warping and swinging of the cantilever-shaped connecting rod and the crank are effectively eliminated, and the strong bearing capacity and reliable extension of the pedal are ensured.

Still further preferably, the U-shaped fork is formed on a connecting rod; the base is provided with a supporting seat with a side surface provided with a groove, so that the pedal is in an extending state, and the connecting rod is limited in the height direction by the groove. The U-shaped fork is formed on the connecting rod to increase the thickness of the connecting rod in a cantilever state when the pedal extends out and improve the supporting strength of the connecting rod; meanwhile, the connecting rod is supported by the side surface groove of the supporting seat, so that the length of the overhanging part of the connecting rod is reduced, and the supporting strength of the connecting rod is improved on the other hand.

Further preferably, the locking mechanism is in a lever bolt structure, and the lever bolt structure is kept in a locking state through a torsion spring. The locking and unlocking operation is realized by operating the lever, the operation convenience is improved, and meanwhile, the installation space of the lever can be effectively utilized for installing the spring component by keeping the state of the torsion spring, so that the structure is compact.

Still further preferably, the lever-pin structure comprises a zigzag lever, a pin and a jack, the lever is hinged to the bottom of the base through a straight line segment in the middle of the zigzag lever, the pin is arranged on the zigzag head-tail sections of two parallel lever arms of the lever, and the axis of the pin is perpendicular to the longitudinal symmetrical plane of the lever; the torsion spring is sleeved on the inverted V-shaped middle straight line section of the lever, one end of the torsion spring is lapped on the base, and the other end of the torsion spring is lapped on the lever arm; the bolt penetrates through the base and then is inserted into the jack to lock the pedal; the insertion hole is provided with two corresponding to the extending and retracting states of the pedal, and the two insertion holes are respectively formed on the connecting rod and the pedal. The inverted V-shaped lever structure can realize synchronous locking at two positions and is symmetrically arranged on the pedal, so that reliable locking is ensured; the operation part of the lever extends to the outside of the pedal through the head and tail sections of the Chinese character 'ji', thereby improving the operation convenience. Meanwhile, the two locking structures are convenient for simultaneously locking the cranks or the connecting rods of the double-crank connecting structure; through the crank or the connecting rod, a superposed section is not required to be formed between the pedal and the base in the extending state of the pedal, the size of the pedal is reduced, the weight is lightened, and the manufacturing cost is reduced.

Further preferably, the distance between the two hinged points of the crank and the base is smaller than the distance between the two hinged points of the connecting rod and the pedal. So that the two crank connecting rod mechanisms are simultaneously hidden under the pedals, and the structure is convenient to be compact.

Preferably, the electric drive device is arranged at the bottom of the box, and two drive wheels of the electric drive device are respectively positioned at two corners of one side of the box and are provided with universal wheels at two corners of the other side of the box; the far end of the pedal is provided with a caster; the base is provided with a truckle storage notch. Arrange with the drive wheel and the supporting wheel that form steady structure, simultaneously, accomodate the truckle through accomodating the breach, make the suitcase more compact at the structure of carrying the state.

Preferably, a battery box is arranged on the box wall on the outer side of the abdomen of the box, and the battery box is detachably connected to the box; the outer surface of a battery cover arranged on the battery box is flush with the outer surface of the corresponding box wall, and a battery fixing structure is formed on the inner side surface of the battery cover. With installing the battery in the case outside, for with traditional electronic suitcase, need not open the case when changing the battery, the battery is changed conveniently, and when the battery was equipped with the UBS interface, conveniently utilized the UBS interface to charge for external equipment like cell-phone, precious etc. that charge.

Preferably, a base is arranged at the bottom of the box; the crank sliding block mechanism comprises a crank with one end hinged to the base, the other end of the crank is hinged to one end of a connecting rod, the other end of the connecting rod is hinged to the pedal, the pedal is in sliding fit in the storage space of the base, and the pedal forms a sliding block in the crank sliding block mechanism. The base constitutes the guide structure of footboard, and the crank connecting rod only sets up a set, and its simple structure, low in manufacturing cost.

The telescopic luggage case has the beneficial effects that the pedals of the luggage case are stretched through the symmetrically arranged double-crank connecting rod mechanisms or the crank sliding block mechanisms to replace the traditional simple sliding guide rail pair, so that the phenomena of looseness and clamping stagnation caused by the abrasion of the guide rails are reduced or avoided. The telescopic device has the advantages of simple structure, flexible and reliable extension and long service life.

Drawings

FIG. 1 is a schematic perspective view of the structure of example 1 of the present invention.

FIG. 2 is a schematic perspective view showing another embodiment 1 of the present invention.

Fig. 3 is a schematic perspective view showing the configuration of the contracted state of the retractable pedal in embodiment 1 of the present invention.

Fig. 4 is a structural schematic perspective view of the deployed state of the retractable pedal in embodiment 1 of the present invention.

Fig. 5 is a schematic plan view showing the structure of the extended state of the retractable pedal in embodiment 1 of the present invention.

Fig. 6 is a structural schematic bottom view of the extended state of the retractable pedal in embodiment 1 of the present invention.

Detailed Description

The invention will be further described with reference to the drawings, but the invention is not limited thereby within the scope of the embodiments described.

Embodiment 1, refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, an electric luggage includes an electric driving device 1 and a draw-bar type luggage 2, wherein both sides of the belly and back of the bottom end of the luggage 2 are respectively provided with a retractable structure pedal 3, so that the pedals 3 can be stored at the bottom of the luggage; the pedal 3 is connected with the box 2 through two symmetrically arranged crank link mechanisms; and the bottom of the box is provided with a locking mechanism for locking the pedal 3 in the extending and retracting state. The electric drive device 1 is arranged at the bottom of the box, and two drive wheels 1a of the electric drive device 1 are respectively positioned at two corners of one side of the box and are provided with universal wheels 11 at two corners of the other side of the box; the far end of the pedal 3 is provided with a caster 12. A battery box 13 is arranged on the outer box wall of the abdomen of the box 2, and the battery box 13 is detachably connected to the box 2; the outer surface of a battery cover arranged on the battery box 13 is flush with the outer surface of the corresponding box wall, and the inner side surface of the battery cover is fixedly provided with a battery through a battery fixing structure, and the battery is provided with a UBS interface.

Wherein, the bottom of the box is provided with a base 4, and the base 4 is provided with a storage space for the pedal 3; the base 4 is provided with a caster wheel accommodating notch 4a. The two crank connecting rod mechanisms respectively comprise a crank 5, one end of the crank 5 is hinged to the base 4, the other end of the crank 5 is hinged to one end of a connecting rod 6, and the other end of the connecting rod 6 is hinged to the pedal 3; two the distance between the pin joint of crank 5 and base 4 is less than two connecting rods 6 and footboard pin joint distance, and two cranks 5 and connecting rod 6 all hide below footboard 3. The connecting end of the crank 5 and the connecting rod 6 are matched through a U-shaped fork structure formed in the thickness direction; the U-shaped fork is formed on the connecting rod 6; the base 4 is provided with a supporting seat 7 with a groove on the side surface, so that the connecting rod 6 is limited in the height direction through the groove in the pedal extending state.

On the other hand, the locking mechanism is arranged through the base 4 and is of a lever bolt structure, and the lever bolt structure keeps a locking state through a torsion spring 8. The lever-pin structure comprises a lever 9 in a shape like a Chinese character 'ji', a pin 10 and a jack 10a, wherein the lever 9 is hinged at the bottom of a base 4 through a straight line segment in the middle of the shape like a Chinese character 'ji', the pin 10 is arranged on the head and tail sections 9a of the two parallel lever arms of the lever 9, and the axis of the pin 10 is vertical to the longitudinal symmetrical plane of the lever 9; the torsion spring is sleeved on the straight line section in the shape of a Chinese character 'ji' of the lever 9, one end of the torsion spring 8 is lapped on the base 4, and the other end is lapped on the lever arm; the bolt 10 penetrates through the base 4 and then is inserted into the insertion hole 10a to lock the pedal 3; the insertion hole 10a is provided with two corresponding to the extended and retracted states of the pedal 3, which are formed on the link 6 and the pedal 3, respectively.

Embodiment 2, an electric luggage case, wherein a pedal 3 is connected with a case 2 through a slider-crank mechanism, and a base 4 is arranged at the bottom of the case; the crank sliding block mechanism comprises a crank 5, one end of the crank 5 is hinged to the base 4, the other end of the crank 5 is hinged to one end of a connecting rod 6, the other end of the connecting rod 6 is hinged to the pedal 3, the pedal 3 is in sliding fit in the storage space of the base 4, and the pedal 3 forms a sliding block in the crank sliding block mechanism. The difference from the embodiment 1 lies in that the base 4 forms a guide structure of the pedal, and the crank link mechanism is only provided with one group; a lever 9 in the locking mechanism is L-shaped, and the lever 9 is Z-shaped after being provided with an operating handle 9 a.

The rest of the structure of this embodiment is the same as embodiment 1, and is not described herein again. In this embodiment, although a separate drawing is omitted, the same parts as those in embodiment 1 can be referred to fig. 1 to 6.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. An electric luggage case comprises an electric drive device (1) and a case (2), wherein a flexible structure pedal (3) is arranged at the bottom end of the case (2) so that the pedal (3) can be stored at the bottom of the case; the pedal is characterized in that the pedals (3) are connected with the box (2) through two symmetrically arranged crank link mechanisms; the box bottom is provided with a base (4), and the base (4) is provided with a pedal (3) storage space; the two crank connecting rod mechanisms respectively comprise a crank (5) with one end hinged on the base (4), the other end of the crank (5) is hinged with one end of a connecting rod (6), and the other end of the connecting rod (6) is hinged with the pedal (3); the distance between the hinged points of the two cranks (5) and the base (4) is less than the distance between the hinged points of the two connecting rods (6) and the pedals, and a locking mechanism for locking the extending and retracting state of the pedals (3) is arranged at the bottom of the box; the crank (5) is matched with the connecting end of the connecting rod (6) through a U-shaped fork structure formed in the thickness direction.

2. The motorized luggage case of claim 1, wherein the locking mechanism is provided by the base (4).

3. The motorized luggage case according to claim 1, characterized in that the clevis is formed on a connecting rod (6); be equipped with supporting seat (7) that the side has the fluting on base (4) to stretch out the state at the footboard, through the fluting forms spacingly to connecting rod (6) direction of height.

4. The motorized luggage of claim 1, wherein the locking mechanism is a lever latch structure, and the lever latch structure is maintained in a locked state by a torsion spring (8).

5. The electric luggage case as claimed in claim 4, wherein the lever-pin structure comprises a zigzag lever (9), a pin (10) and a socket (10 a), the lever (9) is hinged at the bottom of the base (4) through a straight line segment at the middle of the zigzag, the pin (10) is arranged on the zigzag head-tail section (9 a) of two parallel lever arms of the lever (9), and the axis of the pin (10) is perpendicular to the longitudinal symmetry plane of the lever (9); the torsion spring is sleeved on the inverted V-shaped middle straight line section of the lever (9), one end of the torsion spring (8) is lapped on the base (4), and the other end of the torsion spring is lapped on the lever arm; the bolt (10) penetrates through the base (4) and then is inserted into the jack (10 a) to lock the pedal (3); the insertion hole (10 a) is provided with two corresponding to the extending and retracting states of the pedal (3), and the two insertion holes are respectively formed on the connecting rod (6) and the pedal (3).

6. The electric luggage case according to claim 1, wherein the electric drive device (1) is arranged at the bottom of the case, and two driving wheels (1 a) of the electric drive device (1) are respectively arranged at two corners of one side of the bottom of the case and at two corners of the other side of the bottom of the case and are provided with universal wheels (11); the far end of the pedal (3) is provided with a caster (12); the base (4) is provided with a truckle storage notch (4 a).

7. The motorized luggage case according to claim 1, characterized in that a battery box (13) is arranged on the outer wall of the abdomen of the case (2), the battery box (13) is detachably connected to the case (2); the outer surface of a battery cover arranged on the battery box (13) is flush with the outer surface of the corresponding box wall, and a battery fixing structure is formed on the inner side surface of the battery cover.

8. The electric luggage case as claimed in any one of claims 1 to 7, wherein the pedal (3) is slidably fitted in the storage space of the base (4) and connected with the crank link mechanism to form a slider in a crank slider mechanism.