Slide rail structure and electric unicycle

Abstract

The utility model discloses a slide rail structure and electric unicycle, slide rail structure includes the inner tube, the outer tube of slidablely sleeved in the outer of inner tube and the sealing element of sleeving between inner tube and outer tube, one end of inner tube is exposed outside after penetrating outer tube, and the sealing element is two, and two sealing elements are spaced, and inner tube, outer tube and two sealing elements enclose the liquid storage cavity, be equipped with the liquid injection port of communication with liquid storage cavity on outer tube, and the liquid injection port is used for injecting the lubricating liquid to the liquid storage cavity, the outer tube of slide rail structure of the utility model is equipped with the liquid injection port of communication with liquid storage cavity, can inject the lubricating liquid to the liquid storage cavity through the liquid injection port. Compared with the traditional slide rail structure, when the lubricating liquid of factory is consumed, the lubricating liquid can be injected to the liquid storage cavity through the liquid injection port, so that the slide rail structure does not need to be all taken down to maintain and handle, and it is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of unicycle technology, and in particular to a slide rail structure and an electric unicycle including the slide rail structure. Background Technology

[0002] Electric unicycles have become increasingly popular in recent years as a mode of transportation. They are small in size and environmentally friendly, making them ideal for short-distance commuting within cities. Electric unicycles are electrically powered and self-balancing, greatly facilitating short-distance travel.

[0003] Shock absorption is increasingly used in electric unicycles. Traditional electric unicycles generally consist of a wheel assembly and a frame mounted on the wheel assembly, connected by a rail structure to achieve shock absorption. This rail structure requires lubricant, and once the factory-filled lubricant is depleted, traditional rail structures struggle to quickly replenish it. Maintenance often requires complete disassembly of the entire rail structure, almost necessitating the complete disassembly of the unicycle, which is extremely inconvenient. Utility Model Content

[0004] Therefore, it is necessary to provide a slide rail structure that can solve the above problems.

[0005] In addition, it is necessary to provide an electric unicycle that includes the aforementioned slide rail structure.

[0006] A slide rail structure includes an inner tube, an outer tube slidably sleeved outside the inner tube, and a sealing element sleeved between the inner tube and the outer tube; One end of the inner tube passes through the outer tube and protrudes outward. There are two sealing elements, which are spaced apart. The inner tube, the outer tube, and the two sealing elements form a liquid storage cavity. The outer tube is provided with an injection port that communicates with the liquid storage chamber, and the injection port is used to inject lubricating fluid into the liquid storage chamber.

[0007] In one embodiment, the seal includes a hard bushing and a soft sealing ring, wherein one soft sealing ring, one hard bushing, another hard bushing, and another soft sealing ring are arranged sequentially.

[0008] In one embodiment, the flexible sealing ring includes a liquid seal ring and a dust seal ring.

[0009] In one embodiment, the other end of the inner tube also passes through the outer tube and protrudes outward, and the two seals are respectively disposed at both ends of the outer tube.

[0010] In one embodiment, there are two injection ports, which are respectively located near the two seals.

[0011] In one embodiment, a sealing plug is also provided at the injection port.

[0012] In one embodiment, the sealing plug is an elastic hollow structure, and the sealing plug has a sealed state and an open state; When the sealing plug is not deformed, it is in the sealed state, and the channel inside the sealing plug is sealed by its own elasticity; when the sealing plug is deformed, it is in the open state, and the channel inside the sealing plug is opened.

[0013] In one embodiment, the sealing plug includes a housing and a soft plug disposed within the housing, the housing having opposing first and second openings, and the soft plug having a first end that elastically abuts against the first opening and a second end that elastically abuts against the second opening, the second end not sealing the second opening; When the soft plug is not deformed, the first end elastically compresses the first opening, thereby sealing the first opening; when the soft plug is deformed, the first end deforms, the first opening opens, thereby opening the channel inside the sealing plug.

[0014] An electric unicycle includes a wheel assembly, a frame mounted on the wheel assembly, and the aforementioned rail structure. The wheel assembly is connected to one of the inner tube and the outer tube, and the frame is connected to the other of the inner tube and the outer tube.

[0015] In one embodiment, the line connecting the outer tube and the injection port faces outward and is located between the forward and backward directions of the electric unicycle.

[0016] The slide rail structure of this utility model has an injection port on its outer tube that communicates with the liquid storage cavity, through which lubricating fluid can be injected into the liquid storage cavity.

[0017] Compared with traditional slide rail structures, the slide rail structure of this utility model allows for the injection of lubricant into the reservoir through the injection port when the lubricant used at the factory is depleted, thus eliminating the need to completely disassemble the slide rail structure for maintenance, which is more convenient. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] in: Figure 1 This is a three-dimensional structural diagram of a slide rail structure in one direction, representing one embodiment.

[0020] Figure 2 For example Figure 1 The diagram shows an exploded view of the slide rail structure in one direction.

[0021] Figure 3 This is a three-dimensional structural diagram of a sealing plug in one direction, representing another embodiment.

[0022] Figure 4 For example Figure 3 The diagram shows a cross-sectional view of the sealing plug in a sealed state.

[0023] Figure 5 For example Figure 3 The diagram shows a cross-sectional view of the sealing plug in the open position.

[0024] Figure 6 This is a three-dimensional structural diagram of an electric unicycle in one direction, representing one embodiment. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Combination Figure 1 and Figure 2 The present invention discloses a slide rail structure 100 according to one embodiment, including an inner tube 10, an outer tube 20 slidably sleeved outside the inner tube 10, and a sealing member 30 sleeved between the inner tube 10 and the outer tube 20.

[0027] One end of the inner tube 10 passes through the outer tube 20 and protrudes outward. There are two sealing elements 30, which are spaced apart. The inner tube 10, the outer tube 20 and the two sealing elements 30 form a liquid storage cavity.

[0028] The outer tube 20 is provided with an injection port (not marked in the figure) that communicates with the liquid storage chamber. The injection port is used to inject lubricating fluid 40 into the liquid storage chamber.

[0029] The slide rail structure 100 of this utility model has an injection port on its outer tube 20 that communicates with the liquid storage chamber, through which lubricating fluid 40 can be injected into the liquid storage chamber.

[0030] Compared with the traditional slide rail structure 100, the slide rail structure 100 of this utility model can be used to inject lubricant 40 into the storage cavity through the injection port when the lubricant is used up, so that the slide rail structure 100 does not need to be completely disassembled for maintenance, which is more convenient.

[0031] In this embodiment, the inner tube 10 can be solid or hollow, and the outer tube 20 and the inner tube 10 can be in a circular cross-section or other cross-sections, such as square.

[0032] Preferably, in this embodiment, the slide rail structure 100 further includes an elastic reset element (not shown in the figure), which can better play the role of shock absorption and buffering. The elastic reset element is generally a spring.

[0033] In this embodiment, lubricant 40 is lubricating oil. In other embodiments, any lubricant may be selected according to actual needs.

[0034] Combination Figure 2 Preferably, in this embodiment, the sealing element 30 includes a hard bushing 32 and a soft sealing ring 34, with one soft sealing ring 34, one hard bushing 32, another hard bushing 32, and another soft sealing ring 34 arranged sequentially.

[0035] The rigid bushing 32 is used to generate rigid support force and limit the shaking when the inner tube 10 slides. The soft sealing ring 34 is used to fit tightly against the inner tube to achieve a sealing effect, preventing the internal lubricant from leaking out and preventing external sand, water and other foreign objects from entering the interior.

[0036] More preferably, in other embodiments, the flexible sealing ring 34 includes a liquid seal ring and a dust seal ring. This structural arrangement provides better leak prevention and dust prevention.

[0037] Preferably, in this embodiment, the other end of the inner tube 10 also passes through the outer tube 20 and protrudes outward, and two sealing elements 30 are respectively disposed at both ends of the outer tube 20.

[0038] More preferably, in this embodiment, there are two injection ports, which are respectively located near the two sealing elements 30.

[0039] There are two injection ports, positioned close to the two seals 30, which facilitates applying lubricant as close as possible to the area where the seals 30 and the inner tube 10 rub against each other. Alternatively, lubricant can be injected and discharged simultaneously to circulate and clean the internal lubricant.

[0040] Preferably, in conjunction with the accompanying drawings, in this embodiment, a sealing plug 50 is also provided at the injection port.

[0041] A sealing plug 50 is also provided at the injection port to prevent the lubricant 40 from overflowing.

[0042] In this embodiment, the sealing plug 50 is an openable structure. That is, when lubricant 40 needs to be injected, the sealing plug 50 is pulled out, and after the injection is completed, the sealing plug 50 is pushed back into the injection port.

[0043] Combination Figure 3 , Figure 4 and Figure 5 In another embodiment, the sealing plug 250 is an elastic hollow structure, and the sealing plug 250 has a sealed state and an open state.

[0044] When the sealing plug 250 is not deformed, it is in a sealed state, and the internal channel of the sealing plug 250 is sealed by its own elasticity. When the sealing plug 250 is deformed, it is in an open state, and the internal channel of the sealing plug 250 is opened.

[0045] Specifically, combined Figure 4 and Figure 5 The sealing plug 250 includes a housing 252 and a soft plug 254 disposed within the housing 252. The housing 252 has a first opening 2501 and a second opening 2502 opposite to each other. The soft plug 254 has a first end 2542 that elastically abuts against the first opening 2501 and a second end 2544 that elastically abuts against the second opening 2502. The second end 2544 does not seal the second opening 2502.

[0046] When the soft plug 254 is not deformed, the first end 2542 elastically compresses the first opening 2501, thereby sealing the first opening 2501. When the soft plug 254 is deformed, the first end 2542 deforms, the first opening 2501 opens, thereby opening the channel inside the sealing plug 250.

[0047] Specifically, when injecting lubricant 40, a hard material such as a needle is inserted into the first opening 2501 to forcefully squeeze the first end 2542, thereby opening the first opening 2501. The lubricant 40 flows through the first opening 2501 to the second opening 2502 and is finally injected into the reservoir.

[0048] More preferably, in conjunction with the accompanying drawings, in this embodiment, the cross-section of the soft plug 254 is I-shaped, and the first end 2542 and the second end 2544 are parallel to each other.

[0049] The slide rail structure 100 of this embodiment can be applied to various devices, such as bicycles and motorcycles. The following description uses the application of the slide rail structure 100 of this embodiment in an electric unicycle as an example for further explanation.

[0050] Combination Figure 6 The present invention also discloses an embodiment of an electric unicycle, including a wheel assembly 200, a frame 300 disposed on the wheel assembly 200, and the aforementioned slide rail structure 100.

[0051] The wheel assembly 200 is connected to one of the inner tube 10 and the outer tube 20, and the frame 300 is connected to the other of the inner tube 10 and the outer tube 20.

[0052] In this embodiment, in the electric unicycle, the slide rail structure 100 connects the wheel assembly 200 and the frame 300 respectively, thereby playing a role in shock absorption and buffering.

[0053] Preferably, in this embodiment, the slide rail structure 100 further includes an elastic reset element (not shown in the figure), which can better play the role of shock absorption and buffering. The elastic reset element is generally a spring.

[0054] When the structure of the electric unicycle is stacked, the slide rail structure 100 occupies the position of the mirror plane of the central axis of the vehicle body. Components such as batteries may be arranged in the front and rear directions. Other parts such as leg rests and decorative parts may also be arranged on the outside near the pedal direction. Therefore, the space for liquid injection operation is greatly squeezed.

[0055] Preferably, referring to the accompanying drawings, in this embodiment, the line connecting the outer tube 20 and the injection port faces outwards and is located between the forward and reverse directions of the electric unicycle. This structural arrangement allows the injection port to avoid being obstructed by other structures on its sides and front.

[0056] In a particularly preferred embodiment, the line connecting the outer tube 20 and the injection port forms a 45° angle with the forward or backward direction of the electric unicycle, thereby facilitating the finding of injection space in the gaps between components.

[0057] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and 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, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0058] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0059] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A slide rail structure, characterized in that, It includes an inner tube, an outer tube slidably sleeved outside the inner tube, and a sealing element sleeved between the inner tube and the outer tube; One end of the inner tube passes through the outer tube and protrudes outward. There are two sealing elements, which are spaced apart. The inner tube, the outer tube, and the two sealing elements form a liquid storage cavity. The outer tube is provided with an injection port that communicates with the liquid storage chamber, and the injection port is used to inject lubricating fluid into the liquid storage chamber.

2. The slide rail structure according to claim 1, characterized in that, The sealing element includes a hard bushing and a soft sealing ring, with one soft sealing ring, one hard bushing, another hard bushing, and another soft sealing ring arranged sequentially.

3. The slide rail structure according to claim 2, characterized in that, The flexible sealing ring includes a liquid seal ring and a dust seal ring.

4. The slide rail structure according to claim 2, characterized in that, The other end of the inner tube also passes through the outer tube and protrudes outwards, and the two sealing elements are respectively disposed at both ends of the outer tube.

5. The slide rail structure according to claim 4, characterized in that, There are two injection ports, which are respectively located near the two sealing elements.

6. The slide rail structure according to any one of claims 1 to 5, characterized in that, A sealing plug is also provided at the injection port.

7. The slide rail structure according to claim 6, characterized in that, The sealing plug has an elastic hollow structure and can be in a sealed state and an open state. When the sealing plug does not deform, the sealing plug is in the sealed state, and the channel inside the sealing plug is sealed by its own elasticity. When the sealing plug deforms, and the sealing plug is in the open state, the channel inside the sealing plug is opened.

8. The slide rail structure according to claim 7, characterized in that, The sealing plug includes a housing and a soft plug disposed within the housing. The housing has a first opening and a second opening opposite each other. The soft plug has a first end that elastically abuts against the first opening and a second end that elastically abuts against the second opening. The second end does not seal the second opening. When the soft plug is not deformed, the first end elastically compresses the first opening, thereby sealing the first opening; when the soft plug is deformed, the first end deforms, the first opening opens, thereby opening the channel inside the sealing plug.

9. An electric unicycle, characterized in that, Includes a wheel assembly, a frame mounted on the wheel assembly, and a slide rail structure as described in any one of claims 1 to 8; The wheel assembly is connected to one of the inner tube and the outer tube, and the frame is connected to the other of the inner tube and the outer tube.

10. The electric unicycle according to claim 9, characterized in that, The line connecting the outer tube and the injection port faces outward and is located between the forward and backward directions of the electric unicycle.

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