Electric luggage case

Abstract

The utility model discloses an electric luggage case which comprises a case body, a steering mechanism, a first guide rail, a first sliding block, a stretching mechanism and an electric push rod, a containing space is formed in the case body, the case body is provided with rear wheels and a top for riding, front wheels are arranged at the bottom of the steering mechanism, and steering of the front wheels is controlled through the steering mechanism. The first guide rail is arranged on the steering mechanism and extends in the vertical direction, the first sliding block is slidably arranged on the first guide rail, the stretching mechanism comprises a first connecting rod, one end of the first connecting rod is hinged to the first sliding block, and the other end of the first connecting rod is hinged to the front side wall of the box body; the first connecting rod is located between the box body and the steering mechanism, and the electric push rod is in driving connection with the first sliding block so as to drive the first sliding block to slide along the first guide rail and drive the steering mechanism to move in the direction close to or away from the box body through the first connecting rod. Therefore, the electric luggage case can be switched between the unfolded state and the folded state.

Description

Technical Field

[0001] The utility model relates to the technical field of suitcases, in particular to an electric suitcase. Background Art

[0002] With the progress of science and technology, the functional configuration of suitcases is getting higher and higher to meet people's travel needs. Among them, the electric suitcase is improved on the basis of the traditional suitcase so that it can be ridden to reduce the carrying burden of the suitcase. The electric suitcase not only has the storage function of an ordinary suitcase, but also has a riding function, and is driven by electricity to save the user's physical strength, bringing a new use experience to people's travel.

[0003] However, the inventor found during the research process of this application that the existing electric suitcases usually only install front wheels and rear wheels on both sides of the bottom of the box body respectively, and the design method of driving the front wheels to rotate by the hub motor and the rear wheels to follow the rotation realizes the automatic electric driving of the suitcase on the road. Due to the space limitation at the bottom of the suitcase, the distance between the front wheels and the rear wheels is relatively close in this design method, and most of the existing electric suitcases cannot adjust the distance between the front wheels and the rear wheels, so that when the user sits on the box body, his body and limbs cannot be stretched out, and the taller and larger the user's height and body shape, the more inconvenient the riding is, which greatly affects the controllability of the electric suitcase during riding, especially when turning, it is relatively bulky and prone to rollover, greatly affecting the user's riding experience and riding pleasure. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an electric suitcase, aiming to solve at least one of the technical problems existing in the prior art.

[0005] In order to achieve the above purpose, the technical solution of the utility model provides an electric suitcase, including:

[0006] A box body, an accommodation space is formed inside the box body, and the box body has rear wheels and a top for sitting.

[0007] A steering mechanism, a front wheel is arranged at the bottom of the steering mechanism to control the steering of the front wheel through the steering mechanism.

[0008] A first guide rail, the first guide rail is arranged on the front side wall of the box body or the steering mechanism, and the first guide rail extends vertically.

[0009] A first slider, the first slider is slidably arranged on the first guide rail.

[0010] The first connecting rod, one end of the first connecting rod is hinged to the first slider, the other end of the first connecting rod is hinged to the steering mechanism or the front side wall of the box body, and the first connecting rod is located between the box body and the steering mechanism;

[0011] The electric push rod, the electric push rod is drivingly connected to the first slider to drive the first slider to slide along the first guide rail and drive the steering mechanism to move towards or away from the box body through the first connecting rod.

[0012] Further, it further includes:

[0013] The second guide rail, the second guide rail is vertically extended and arranged on the front side wall of the box body, and the first guide rail is vertically extended and arranged on the steering mechanism;

[0014] The second slider, the second slider is slidably arranged on the second guide rail;

[0015] The second connecting rod, one end of the second connecting rod is hinged to the second slider, the other end of the second connecting rod is hinged to the steering mechanism, and the middle part of the second connecting rod is hinged to the middle part of the first connecting rod.

[0016] Further, the first connecting rods are arranged in pairs in the left - right direction, the second connecting rods are arranged in pairs in the left - right direction, and the middle parts of the two first connecting rods are correspondingly hinged to the middle parts of the two second connecting rods.

[0017] Further, the first connecting rods are arranged in pairs in the left - right direction, and the two first connecting rods are arranged on the left and right sides of the steering mechanism.

[0018] Further, the steering mechanism is provided with a housing, an installation space is arranged in the housing, and the electric push rod is arranged in the installation space.

[0019] Further, a first strip - shaped groove is vertically opened on the surface of the housing facing the box body, the first guide rail and the first slider are both installed in the installation space, and one end of the first connecting rod passes through the first strip - shaped groove and is hinged to the first slider.

[0020] Further, the first guide rail includes a first chute, the first slider includes a first sliding part and a first connecting seat, the first sliding part is slidably embedded in the first chute, and the first connecting seat is hinged to one end of the first connecting rod.

[0021] Further, the second guide rail is disposed on the front inner wall of the box body. A second strip-shaped groove is vertically formed on the front inner wall of the box body. The second slider includes a second sliding portion and a second connecting seat. The second sliding portion is slidably disposed on the second guide rail. The second connecting seat has a second lug, and the second lug passes through the second strip-shaped groove and is hinged to one end of the second connecting rod.

[0022] Further, the second guide rail includes a second mounting seat. The second mounting seat is mounted on the front inner wall of the box body, and a second chute is vertically arranged on the second mounting seat. The second sliding portion is slidably embedded in the second chute.

[0023] In addition, the technical solution of the present utility model provides an electric suitcase, including:

[0024] A box body, an accommodation space is formed inside the box body, and the box body has rear wheels and a top for sitting.

[0025] A steering mechanism, a front wheel is disposed at the bottom of the steering mechanism to control the steering of the front wheel through the steering mechanism.

[0026] A first guide rail, the first guide rail is vertically extended and disposed on the steering mechanism.

[0027] A first slider, the first slider is slidably disposed on the first guide rail.

[0028] A second guide rail, the second guide rail is vertically extended and disposed on the front side wall of the box body.

[0029] A second slider, the second slider is slidably disposed on the second guide rail.

[0030] An extension mechanism, both ends of the lower part of the extension mechanism are respectively hinged to the box body and the steering mechanism, both ends of the upper part of the extension mechanism are respectively hinged to the first slider and the second slider, and the extension mechanism has a deployed state and a retracted state.

[0031] An electric push rod, the electric push rod is used to drive the extension mechanism to switch between the deployed state and the retracted state, so that the steering mechanism moves away from the box body to switch the extension mechanism to the deployed state, and the steering mechanism moves close to the box body to switch the extension mechanism to the retracted state.

[0032] As can be seen from the above technical solution, for the electric suitcase of the present utility model, the top of the box body can be ridden by the user. When the user needs to ride, the electric push rod drives the first slider to slide along the first guide rail and drives the steering mechanism to move away from the box body through the first connecting rod, so as to switch the extension mechanism to the unfolded state, so that the steering mechanism and the front wheels move away from the box body to increase the riding space, facilitating the user to stretch out the limbs of the body when riding, enabling the user to obtain a more comfortable riding posture, which is beneficial for the user to control the steering when riding, thereby enhancing the user's riding experience and riding pleasure. When not needed to ride, the electric push rod is then driven to drive the first slider to slide reversely along the first guide rail and drive the steering mechanism to move towards the box body through the first connecting rod, so as to switch the extension mechanism to the retracted state, and then make the steering mechanism and the front wheels close to the box body and fold up, so as to reduce the space occupied by the entire suitcase, facilitating storage, carrying and transportation.

[0033] In order to make the technical concept, other purposes, advantages, features and functions of the present utility model clearer and easier to understand, preferred embodiments will be specifically cited in the following specific embodiments, and detailed explanations will be made in conjunction with the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 is a perspective view of an electric suitcase provided by an embodiment of the present application in a retracted state;

[0036] Figure 2 is a partial structural schematic diagram of an electric suitcase provided by an embodiment of the present application in a retracted state;

[0037] Figure 3 is a perspective view of an electric suitcase provided by an embodiment of the present application in an unfolded state;

[0038] Figure 4 is a perspective view of another angle of an electric suitcase provided by an embodiment of the present application in an unfolded state;

[0039] Figure 5 is a partial structural schematic diagram of an electric suitcase provided by an embodiment of the present application in an unfolded state;

[0040] Figure 6 is an exploded view of an electric suitcase provided by an embodiment of the present application in an unfolded state;

[0041] Figure 7 It is an exploded view of another perspective of an electric suitcase provided by an embodiment of the present application in the unfolded state;

[0042] Figure 8 It is a schematic structural diagram when the second guide rail and the second slider provided by an embodiment of the present application are combined.

[0043] Among them, the above-mentioned drawings include the following reference numerals:

[0044] 100, box body; 110, rear wheels; 120, top; 130, front side wall; 131, second strip groove; 140, lug seat;

[0045] 200, steering mechanism; 210, front wheels; 220, handle; 230, housing; 231, first strip groove;

[0046] 300, first guide rail; 310, first chute; 320, first cylindrical rubber strip;

[0047] 400, first slider; 410, first sliding part; 420, first connecting seat; 421, first lug;

[0048] 500, second guide rail; 510, second mounting seat; 520, second chute; 530, second cylindrical rubber strip;

[0049] 600, second slider; 610, second sliding part; 620, second connecting seat; 621, second lug;

[0050] 700, extension mechanism; 710, first connecting rod; 720, second connecting rod; 800, electric push rod. Detailed implementation manners

[0051] In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0052] Please refer to together Figures 1 to 8, this embodiment provides an electric suitcase, including a box body 100, a steering mechanism 200, a first guide rail 300, a first slider 400, an extension mechanism 700, and an electric push rod 800. An accommodation space is formed inside the box body 100 for placing clothes, and the box body 100 has rear wheels 110 and a top 120 for sitting. A front wheel 210 is provided at the bottom of the steering mechanism 200. The front wheel 210 adopts a hub motor wheel to control the steering of the front wheel 210 through the steering mechanism 200. A handle 220 is provided at the top 120 of the steering mechanism 200. The first guide rail 300 is arranged on the steering mechanism 200 and extends vertically. The first slider 400 is slidably arranged on the first guide rail 300. The extension mechanism 700 includes a first connecting rod 710. One end of the first connecting rod 710 is hinged to the first slider 400, and the other end of the first connecting rod 710 is hinged to the front side wall 130 of the box body 100. And the first connecting rod 710 is located between the box body 100 and the steering mechanism 200. The electric push rod 800 is drivingly connected to the first slider 400 to drive the first slider 400 to slide along the first guide rail 300 and drive the steering mechanism 200 to move in a direction closer to or farther from the box body 100 through the first connecting rod 710. Specifically, as Figure 3 shown, to make the steering mechanism 200 move away from the box body 100 to switch the extension mechanism 700 to the unfolded state for easy riding, as Figure 1 shown, to make the steering mechanism 200 move closer to the box body 100 to switch the extension mechanism 700 to the folded state for easy storage and transportation.

[0053] It can be seen that for the electric suitcase of the present utility model, the top 120 of the box body 100 can be used by the user to sit. When the user needs to ride, the electric push rod 800 drives the first slider 400 to slide along the first guide rail 300 and drives the steering mechanism 200 to move away from the box body 100 through the first connecting rod 710 to switch the extension mechanism 700 to the unfolded state, so that the steering mechanism 200 and the front wheel 210 are far away from the box body 100 to increase the sitting space, facilitating the user to stretch the body and limbs during riding, enabling the user to obtain a more comfortable riding posture, being beneficial to the user to control the steering during riding, thereby enhancing the user's riding experience and riding pleasure. When not in need of riding, the electric push rod 800 is then made to drive the first slider 400 to slide reversely along the first guide rail 300 and drive the steering mechanism 200 to move closer to the box body 100 through the first connecting rod 710 to switch the extension mechanism 700 to the folded state, and then the steering mechanism 200 and the front wheel 210 are close to the box body 100 and folded up to reduce the space occupied by the entire suitcase, facilitating storage, carrying and transportation.

[0054] In this embodiment, the electric suitcase further includes a second guide rail 500 and a second slider 600. The second guide rail 500 is arranged along the vertical direction on the front side wall 130 of the box body 100. The second slider 600 is slidably arranged on the second guide rail 500. The extension mechanism 700 further includes a second connecting rod 720. One end of the second connecting rod 720 is hinged to the second slider 600, and the other end of the second connecting rod 720 is hinged to the steering mechanism 200. And the middle part of the second connecting rod 720 is hinged to the middle part of the first connecting rod 710, so that the first connecting rod 710 and the second connecting rod 720 are arranged in a cross shape. In this way, by connecting the extension mechanism 700 between the steering mechanism 200 and the box body 100, the structure is more stable and reliable.

[0055] Specifically, the first connecting rods 710 are arranged in pairs along the left-right direction, the second connecting rods 720 are arranged in pairs along the left-right direction, and the middle parts of the two first connecting rods 710 are hinged to the middle parts of the two second connecting rods 720 one by one. In this way, the stability and reliability of the extension mechanism 700 are further improved.

[0056] In one embodiment, the first connecting rods 710 are arranged in pairs along the left-right direction, and the two first connecting rods 710 are arranged on the left and right sides of the steering mechanism 200. In this way, the stability and reliability of the extension mechanism 700 can be effectively improved.

[0057] In this embodiment, the steering mechanism 200 is provided with a housing 230. An installation space is arranged in the housing 230. At least one side of the housing 230 is covered with a cover plate to open the installation space through the cover plate for installation. The electric push rod 800 is arranged in the installation space. A controller and a battery are arranged in the installation space of the housing 230 to supply power to the electric push rod 800 and the hub motor of the front wheel 210 through the battery. The controller is electrically connected to the electric push rod 800 and the hub motor of the front wheel 210 respectively. And a plurality of buttons for controlling the electric suitcase are arranged on the handle 220 rod. In this way, by providing the housing 230 on the steering mechanism 200, on the one hand, the electric push rod 800 can be hidden and installed in the housing 230, effectively reducing the limited space occupied by the electric push rod 800 inside the box body 100, so that more clothes can be accommodated in the suitcase. On the other hand, hiding the controller and the battery in the housing 230 is convenient for wiring the hub motor of the front wheel 210 and the controller. Of course, in other embodiments, the controller and the battery can also be installed in the box body 100, but this will occupy the limited space inside the box body 100, and the electrical connection wires between the controller and the hub motor of the front wheel 210 need to be arranged through the extension mechanism 700, which is not convenient for wiring.

[0058] Among them, the controller controls the rotation of the hub motor front wheel 210, and the rear wheel 110 rotates following the front wheel 210. The user rides on the top 120 of the box body 100 and holds the handle 220 on the steering mechanism 200 with both hands or one hand to control the steering of the front wheel 210 by rotating the steering mechanism 200, so as to realize riding this electric luggage on the road.

[0059] Specifically, a first strip-shaped groove 231 is vertically formed on one side of the housing 230 facing the box body 100. The first guide rail 300 and the first slider 400 are both installed in the installation space of the housing 230 to hide them in the installation space of the housing 230, avoiding the exposure of the connection structure and affecting the beauty of the electric luggage. One end of the first connecting rod 710 passes through the first strip-shaped groove 231 and is hinged to the first slider 400, and the other end of the second connecting rod 720 passes through the first strip-shaped groove 231 and is hinged to the inner wall of the steering mechanism 200 or the housing 230. At least part of the rod part of the steering mechanism 200 is accommodated in the housing 230 to leave enough space for the first connecting rod 710 and the second connecting rod 720 through the first strip-shaped groove 231, and the structure is more reliable.

[0060] Furthermore, the first guide rail 300 includes a first chute 310 provided on the inner wall of the housing 230. The first slider 400 includes a first sliding part 410 and a first connecting seat 420. The first sliding part 410 and the first connecting seat 420 are connected by screws. The first sliding part 410 is slidably embedded in the first chute 310. The first connecting seat 420 is hinged to one end of the first connecting rod 710. The first connecting seat 420 has first lugs 421 which are arranged in pairs, and one end of the first connecting rod 710 is hinged to the first lugs 421. With such a setting, the structure is simple and convenient for assembly.

[0061] Among them, first cylindrical rubber strips 320 are embedded on opposite side walls of the first chute 310. The first sliding part 410 is in a disc shape, and one or more first sliding parts 410 can be adopted. When the first sliding part 410 slides in the first chute 310, the outer peripheral surface of the first sliding part 410 is in close contact with the outer surface of the first cylindrical rubber strip 320, ensuring both stable structure and smooth sliding, effectively avoiding jamming when the extension mechanism 700 extends, and improving the product quality of the electric luggage.

[0062] In this embodiment, the second guide rail 500 is arranged on the front inner wall of the box body 100. A second strip-shaped groove 131 is vertically formed on the front inner wall of the box body 100. The second slider 600 includes a second sliding part 610 and a second connecting seat 620. The second sliding part 610 and the second connecting seat 620 are connected by screws. The second sliding part 610 is slidably arranged on the second guide rail 500. The second connecting seat 620 has a second lug 621. The second lug 621 passes through the second strip-shaped groove 131 and is hinged to one end of the second connecting rod 720. The second lugs 621 are arranged in pairs, and one end of each of the two second connecting rods 720 is hinged to the two second lugs 621 in a one-to-one correspondence. In this way, the second guide rail 500 and the second slider 600 are hidden and installed in the box body 100, and the second strip-shaped groove 131 is formed on the front inner wall of the box body 100, so that the second lug 621 of the second connecting seat 620 passes through the second strip-shaped groove 131 and is hinged to one end of the second connecting rod 720. While not affecting the external beauty of the electric suitcase, it can improve the stability and reliability of the mechanism operation. The structure is simple, the assembly is convenient, and the production and manufacturing cost is low.

[0063] Specifically, the second guide rail 500 includes a second mounting seat 510. The second mounting seat 510 is mounted on the front inner wall of the box body 100. The second mounting seat 510 is vertically provided with a second sliding groove 520. The second sliding part 610 is slidably embedded in the second sliding groove 520. Folding edges are arranged on both sides of the second mounting seat 510, and mounting holes are formed in the folding edges to mount the second mounting seat 510 on the front inner wall of the box body 100 through the folding edges. The second sliding groove 520 is fixed on the second mounting seat 510 by screws. Second cylindrical rubber strips 530 are embedded on opposite side walls of the second sliding groove 520. The second sliding part 610 is in a round cake shape. One or more second sliding parts 610 can be adopted, so that when the second sliding part 610 slides in the second sliding groove 520, the outer peripheral surface of the second sliding part 610 is in close contact with the outer surface of the second cylindrical rubber strip 530. While the structure is relatively stable, the smoothness of sliding can be ensured.

[0064] Further, a lug seat 140 is arranged on the front side wall 130 of the box body 100. The other end of the first connecting rod 710 is hinged to the lug seat 140. The lug seats 140 are arranged in pairs, and the two first connecting rods 710 are hinged to the two lug seats 140 in a one-to-one correspondence.

[0065] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0066] For the electric luggage of the present utility model, the top 120 of the luggage body 100 can be ridden by the user. When the user needs to ride, the electric push rod 800 drives the first slider 400 to slide along the first guide rail 300 and drives the steering mechanism 200 to move away from the luggage body 100 through the first connecting rod 710, so as to switch the extension mechanism 700 to the unfolded state. Thus, the steering mechanism 200 and the front wheel 210 are far away from the luggage body 100 to increase the riding space, facilitating the user to stretch the body and limbs during riding, enabling the user to obtain a more comfortable riding posture, being conducive to the user to control the steering during riding, thereby enhancing the user's riding experience and riding pleasure. When riding is not needed, the electric push rod 800 is then driven to drive the first slider 400 to slide reversely along the first guide rail 300 and drive the steering mechanism 200 to move towards the luggage body 100 through the first connecting rod 710, so as to switch the extension mechanism 700 to the retracted state, and then make the steering mechanism 200 and the front wheel 210 close to the luggage body 100 and fold up, so as to reduce the space occupied by the whole luggage, being convenient for storage, carrying and transportation.

[0067] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0068] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0069] It should be noted that in the description of the present application, unless otherwise clearly specified and limited, the terms "set, connect, couple, install" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a contact connection, or an integral connection; for those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0070] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, longitudinal, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present application; in addition, the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0071] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front part", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0072] In addition, it should be noted that in the description of the present utility model, the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it cannot be understood as a limitation on the protection scope of the present application. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" refers to two or more.

[0073] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. An electric luggage box, characterized in that: include: A box body, wherein a receiving space is formed inside the box body, and the box body has rear wheels and a top portion for sitting; A steering mechanism, wherein a front wheel is disposed at the bottom of the steering mechanism so as to control the steering of the front wheel through the steering mechanism; A first guide rail, which is arranged on the front side wall of the box or the steering mechanism, and extends vertically; a first slider, the first slider being slidably disposed on the first guide rail; a first connecting rod, one end of which is hinged to the first slider, the other end of which is hinged to the steering mechanism or the front side wall of the box, and the first connecting rod is located between the box and the steering mechanism; An electric push rod is drivingly connected to the first slider to drive the first slider to slide along the first guide rail and drive the steering mechanism to move toward or away from the box through the first connecting rod.

2. The electric luggage case according to claim 1, characterized in that: Also includes: a second guide rail, the second guide rail extending vertically and arranged on the front side wall of the box body, and the first guide rail extending vertically and arranged on the steering mechanism; a second slider, the second slider being slidably disposed on the second guide rail; A second connecting rod, one end of the second connecting rod is hinged to the second sliding block, the other end of the second connecting rod is hinged to the steering mechanism, and the middle part of the second connecting rod is hinged to the middle part of the first connecting rod.

3. The electric luggage case according to claim 2, characterized in that: The first connecting rods are arranged in pairs along the left-right direction, the second connecting rods are arranged in pairs along the left-right direction, and the middle parts of the two first connecting rods are hinged to the middle parts of the two second connecting rods in a one-to-one correspondence.

4. The electric luggage case according to claim 1, characterized in that: The first connecting rods are arranged in pairs along the left-right direction, and two of the first connecting rods are arranged on the left and right sides of the steering mechanism.

5. The electric luggage case according to any one of claims 1 to 4, characterized in that: The steering mechanism is provided with a housing, an installation space is provided in the housing, and the electric push rod is arranged in the installation space.

6. The electric luggage case according to claim 5, characterized in that: A first strip groove is vertically formed on one side of the shell body facing the box body. The first guide rail and the first slider are both installed in the installation space. One end of the first connecting rod passes through the first strip groove and is hinged to the first slider.

7. The electric luggage case according to any one of claims 1 to 4, characterized in that: The first guide rail includes a first slide groove, the first slider includes a first sliding portion and a first connecting seat, the first sliding portion is slidably embedded in the first slide groove, and the first connecting seat is hinged to one end of the first connecting rod.

8. The electric luggage case according to claim 2, characterized in that: The second guide rail is arranged on the front inner wall of the box body, and a second strip groove is opened vertically on the front inner wall of the box body. The second slider includes a second sliding part and a second connecting seat. The second sliding part is slidably arranged on the second guide rail, and the second connecting seat has a second lug. The second lug passes through the second strip groove and is hinged to one end of the second connecting rod.

9. The electric luggage case according to claim 8, characterized in that: The second guide rail includes a second mounting seat, the second mounting seat is mounted on the front inner wall of the box body, and the second mounting seat is vertically provided with a second slide groove, and the second sliding part is slidably embedded in the second slide groove.

10. An electric luggage case, characterized in that: include: A box body, wherein a receiving space is formed inside the box body, and the box body has rear wheels and a top portion for sitting; A steering mechanism, wherein a front wheel is disposed at the bottom of the steering mechanism so as to control the steering of the front wheel through the steering mechanism; a first guide rail, the first guide rail extending vertically and arranged on the steering mechanism; a first slider, the first slider being slidably disposed on the first guide rail; A second guide rail, the second guide rail extending vertically and arranged on the front side wall of the box body; a second slider, the second slider being slidably disposed on the second guide rail; An extension mechanism, wherein two ends of a lower portion of the extension mechanism are respectively hinged to the box body and the steering mechanism, and two ends of an upper portion of the extension mechanism are respectively hinged to the first slider and the second slider, and the extension mechanism has an extended state and a retracted state; An electric push rod is used to drive the extension mechanism to switch between an extended state and a folded state, so that the steering mechanism moves in a direction away from the box body to switch the extension mechanism to the extended state, and the steering mechanism moves in a direction close to the box body to switch the extension mechanism to the folded state.

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