A protective device for a multi-stage slide rail

Abstract

The present invention belongs to the technical field of motorhomes, and discloses a protection device for a multi-stage slide rail, including a multi-stage slide rail, a bracket, a protective sleeve, and a sealing component. Among them, the protective sleeve is sleeved on the multi-stage slide rail and expands and retracts synchronously with the multi-stage slide rail. An opening that slidably cooperates with the bracket wall of the bracket is provided along the length direction of the protective sleeve; the sealing component cooperates with the protective sleeve for sealing the exposed part of the multi-stage slide rail after the protective sleeve expands and retracts synchronously with the multi-stage slide rail. A channel for facilitating the sliding of the protective sleeve is provided along the expansion and retraction direction of the multi-stage slide rail; when the protective sleeve expands, the channel located in the exposed part of the multi-stage slide rail is closed; when the protective sleeve retracts, the channel located in the exposed part of the multi-stage slide rail is separated by one side wall of the protective sleeve. With the protection device designed in this structure, it can effectively protect the periphery of the multi-stage slide rail while the multi-stage slide rail expands and retracts normally, thereby preventing the invasion of rain and sand, and effectively improving the service life and expansion and retraction smoothness of the multi-stage slide rail.

Description

Technical Field

[0001] The present invention relates to the technical field of RVs, and in particular to a protection device for a multi-stage slide rail. Background Art

[0002] In the related art, multi-stage slide rails are used in outdoor or dusty environments. Due to the lack of necessary protection, most of them are directly exposed. During long-term use, they are easily corroded or the tracks are blocked under the erosion of dust, rain, and sand. As a result, not only the service life of the multi-stage slide rail is reduced, but also the expansion and retraction of the components connected to the multi-stage slide rail become extremely stuck, thus greatly affecting the smooth expansion and retraction of the components. Summary of the Invention

[0003] The purpose of the present invention is to provide a protection device for a multi-stage slide rail, which can achieve a good waterproof and dustproof effect, and thus provide good protection for the multi-stage slide rail.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A protection device for a multi-stage slide rail, comprising:

[0006] A multi-stage slide rail;

[0007] A bracket for erecting the multi-stage slide rail;

[0008] A protective sleeve sleeved on the multi-stage slide rail and synchronously expanding and retracting with the multi-stage slide rail. The protective sleeve is sealed and fastened to the last-stage slide rail of the multi-stage slide rail, and an opening is formed in the protective sleeve along the length direction for sliding fit with the bracket wall of the bracket;

[0009] A sealing assembly, which is matched with the protective sleeve for sealing the exposed part of the multi-stage slide rail after the protective sleeve expands synchronously with the multi-stage slide rail. The sealing assembly is provided with a channel for facilitating the sliding of the protective sleeve along the expansion and retraction direction of the multi-stage slide rail; when the protective sleeve expands, the channel located in the exposed part of the multi-stage slide rail is closed; when the protective sleeve retracts, the channel located in the exposed part of the multi-stage slide rail is separated by a side wall of the protective sleeve.

[0010] Wherein, the sealing assembly includes a first sealing strip and a second sealing strip arranged on opposite sides of one side wall of the protective sleeve. The first sealing strip includes an upper sealing strip and a lower sealing strip, and the upper sealing strip and the lower sealing strip are respectively fastened to the upper and lower side walls of the opening of the fixed slide rail of the multi-stage slide rail; the second sealing strip is fastened to an external support member; an openable and closable channel is provided between the first sealing strip and the second sealing strip.

[0011] Wherein, when the protective cover is deployed synchronously with the multi-stage slide rail, the upper sealing strip and the lower sealing strip located at the exposed part of the multi-stage slide rail are respectively closed with the second sealing strip;

[0012] When the protective cover is retracted synchronously with the multi-stage slide rail, the upper sealing strip and the lower sealing strip located at the exposed part of the multi-stage slide rail are separated from the second sealing strip under the action of one side wall of the protective cover.

[0013] Wherein, one end of the protective cover is sealed, and the other end of the protective cover is provided with a first sealing member slidably engaged with the fixed slide rail of the multi-stage slide rail, and a first felt sealing member for sealing the opening and closing part between the first sealing strip and the second sealing strip.

[0014] Wherein, a third sealing strip and a fourth sealing strip are respectively arranged on both sides of the opening; when the protective cover is deployed synchronously with the multi-stage slide rail, the third sealing strip is closed with the fourth sealing strip; when the protective cover is retracted synchronously with the multi-stage slide rail, the third sealing strip and the fourth sealing strip are separated under the action of the bracket.

[0015] Wherein, one end of the bracket facing the deployed protective cover is provided with a second sealing member, and a second felt sealing member for sealing the opening and closing part between the third sealing strip and the fourth sealing strip.

[0016] Wherein, partition protrusions are arranged at the ends of one side wall of the protective cover and at the ends of the bracket.

[0017] Wherein, the upper sealing strip, the lower sealing strip, the second sealing strip, the third sealing strip and the fourth sealing strip are all arranged as magnetic strips or zippers.

[0018] Wherein, a water guide groove and a drain hole are arranged at the bottom of the fixed slide rail of the multi-stage slide rail.

[0019] Wherein, a first sealing baffle is arranged at one end of the fixed slide rail away from the deployed protective cover; a second sealing baffle is arranged at one end of the deployed protective cover facing the fixed slide rail.

[0020] Advantages of the present invention: The present invention provides a protection device for a multi-stage slide rail, including a multi-stage slide rail, a bracket, a protective sleeve, and a sealing component. Among them, the bracket is used for the erection of the multi-stage slide rail; the bracket is fastened to the fixed slide rail of the multi-stage slide rail; the protective sleeve is sleeved on the multi-stage slide rail and expands and retracts synchronously with the multi-stage slide rail. The protective sleeve is sealed and fastened to the last-stage slide rail of the multi-stage slide rail. An opening that slidably cooperates with the bracket wall of the bracket is formed in the protective sleeve along the length direction; the sealing component cooperates with the protective sleeve for sealing the exposed part of the multi-stage slide rail after the protective sleeve expands synchronously with the multi-stage slide rail. A channel facilitating the sliding of the protective sleeve is provided in the sealing component along the expansion and retraction direction of the multi-stage slide rail; when the protective sleeve expands, the channel located in the exposed part of the multi-stage slide rail closes; when the protective sleeve retracts, the channel located in the exposed part of the multi-stage slide rail is separated by a side wall of the protective sleeve. With the protection device designed in this structure, the multi-stage slide rail can be effectively protected on the periphery while being normally expanded and retracted, thereby preventing the invasion of rain and sand, and effectively improving the service life and smoothness of the expansion and retraction of the multi-stage slide rail. Brief Description of the Drawings

[0021] Figure 1 is an axonometric view of a protection device for a multi-stage slide rail of the present invention in a semi-expanded state.

[0022] Figure 2 is Figure 1 a partial enlarged view of part A in

[0023] Figure 3 is an axonometric view of a protection device for a multi-stage slide rail of the present invention in a fully-expanded state.

[0024] Figure 4 is an axonometric view of the protection device of the present invention after removing the first sealing baffle.

[0025] Figure 5 is Figure 4 a partial enlarged view of part B in

[0026] Figure 6 is Figure 1 an axonometric view of the bottom of the protection device in

[0027] Figure 7 is Figure 6 a partial enlarged view of part C in

[0028] Figure 8 is Figure 1 an axonometric view of the protection device applied to the solar panel of a motorhome in

[0029] Figure 9 is Figure 1 a cross-sectional view of the D-D section in Detailed Embodiments

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the sake of description, only the parts related to the present invention are shown in the drawings, rather than all the structures.

[0031] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above the top of", and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below the bottom of", and "under the bottom of" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature is at a lower horizontal height than the second feature.

[0033] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, 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 to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] This embodiment provides a protection device for a multi-stage slide rail, which is mainly used for protecting the multi-stage slide rail when it is used outdoors, avoiding sand and wind erosion and affecting the service life and the smoothness of the extension and retraction of the multi-stage slide rail.

[0035] Specifically, in combination with Figures 1 to 9As shown, the present embodiment provides a protective device for a multi-stage slide rail, which is mainly composed of a multi-stage slide rail, a bracket 2, a protective sleeve 8 and a sealing assembly, wherein the bracket 2 is mainly used for setting up the multi-stage slide rail, and the bracket 2 is fastened to a fixed slide rail 11 (i.e., a first-stage slide rail) in the multi-stage slide rail; the protective sleeve 8 is sleeved on the multi-stage slide rail and is synchronously retracted and extended with the multi-stage slide rail. Specifically, one end of the protective sleeve 8 is open, and the other end is closed. The protective sleeve 8 is sleeved on the last-stage slide rail 12 of the multi-stage slide rail (taking the three-stage slide rail as an example, i.e., the third-stage slide rail at the outermost end after unfolding) and is fastened to the last-stage slide rail 12. In addition, in order to prevent the protective sleeve 8 from being blocked by the bracket 2 during the retraction and extension of the last-stage slide rail 12, the present embodiment is provided with an opening along the length direction of the protective sleeve 8 that slides with the bracket wall of the bracket 2, so that the protective sleeve 8 can be smoothly retracted and extended with the multi-stage slide rail.

[0036] Furthermore, in this embodiment, in order to protect the exposed part of the unfolded multi-stage slide rail (that is, the part outside the protective cover 8 after the unfolded multi-stage slide rail), the above-mentioned sealing component is also provided in this embodiment. Preferably, the above-mentioned sealing component is mainly used to seal the exposed part of the multi-stage slide rail after the protective cover 8 is synchronously unfolded with the multi-stage slide rail. Specifically, the sealing component is provided with a channel for facilitating the sliding of the protective cover 8 along the direction of the folding and unfolding of the multi-stage slide rail; when the protective cover 8 is unfolded, the channel located at the exposed part of the multi-stage slide rail is closed; when the protective cover 8 is folded, the channel located at the exposed part of the multi-stage slide rail is separated by a side wall of the protective cover 8. In this way, the normal folding and unfolding of the multi-stage slide rail can be met, and effective protection can be formed on the periphery of the multi-stage slide rail through the provision of the protective cover 8 and the sealing component, thereby avoiding various problems caused by sandstorms, wind and rain.

[0037] To be more specific, the sealing assembly designed in the above manner in this embodiment includes a first sealing strip and a second sealing strip 33 arranged on opposite sides of a side wall of the protective sleeve 8, wherein the first sealing strip includes an upper sealing strip 31 and a lower sealing strip 32, and the upper sealing strip 31 and the lower sealing strip 32 are respectively fastened to the upper and lower side walls of the opening of the fixed slide rail 11 of the multi-stage slide rail; the second sealing strip 33 is fastened to the external support member 4; and the above-mentioned channel that can be opened and closed is provided between the first sealing strip and the second sealing strip 33.

[0038] Preferably, the upper sealing strip 31, the lower sealing strip 32 and the second sealing strip 33 designed in the above manner are all configured as magnetic strips, so that when the protective cover 8 is synchronously unfolded with the multi-stage slide rail, the upper sealing strip 31 and the lower sealing strip 32 located at the exposed part of the multi-stage slide rail are respectively closed with the upper and lower edges of the second sealing strip 33 under the action of the magnetic force; when the protective cover 8 is synchronously retracted with the multi-stage slide rail, the upper sealing strip 31 and the lower sealing strip 32 located at the exposed part of the multi-stage slide rail are separated from the upper and lower edges of the second sealing strip 33 under the action of a side wall of the protective cover 8.

[0039] As an alternative to the above solution, the upper sealing strip 31, the lower sealing strip 32 and the second sealing strip 33 in the above embodiments can also be closed or separated by means of a zipper, that is, by connecting a draw bar and a pull head, so as to achieve the same technical effect. The specific implementation methods of using zippers are relatively common in related technologies and will not be specifically described here.

[0040] Similarly to the above embodiment, in order to prevent dust and sand from pouring in through the opening at the mating part of the protective sleeve 8 and the bracket 2, in this embodiment, a third sealing strip 51 and a fourth sealing strip 52 are respectively arranged on both sides of the opening of the protective sleeve 8; the third sealing strip 51 and the fourth sealing strip 52 can also be set as magnetic strips or zippers. When the protective sleeve 8 is unfolded synchronously with the multi-stage slide rail, the third sealing strip 51 and the fourth sealing strip 52 are closed; when the protective sleeve 8 is retracted synchronously with the multi-stage slide rail, the third sealing strip 51 and the fourth sealing strip 52 are separated under the action of the bracket 2.

[0041] The upper sealing strip 31, the lower sealing strip 32, the second sealing strip 33, the third sealing strip 51 and the fourth sealing strip 52 designed in the above manner can form good protection for the exposed part of the multi-stage slide rail after the protective sleeve 8 is unfolded, and can also enable the protective sleeve 8 to be smoothly unfolded and retracted.

[0042] Furthermore, for the protective device designed in the above embodiment, in order to facilitate the opening and closing of the first sealing strip and the second sealing strip 33, and the third sealing strip 51 and the fourth sealing strip 52, in this embodiment, separating protrusions 61 and 62 are respectively arranged at the end of one side wall of the protective sleeve 8 and the end of the bracket 2, so as to isolate the magnetically connected first sealing strip and the second sealing strip 33, and the third sealing strip 51 and the fourth sealing strip 52; of course, if the first sealing strip and the second sealing strip 33, and the third sealing strip 51 and the fourth sealing strip 52 are all arranged with zippers, the separating protrusions 61 and 62 can also be replaced with zipper heads.

[0043] In order to further improve the sealing performance of the above protective device, preferably, one end of the protective sleeve 8 is sealed, and the other end of the protective sleeve 8 is provided with a first sealing member 34 that slidably cooperates with the fixed slide rail 11 of the multi-stage slide rail, and a first felt sealing member 35 for sealing the opening and closing part between the first sealing strip and the second sealing strip 33, so as to prevent dust from flowing in through the opening at the other end of the protective sleeve 8 or the gap between the first sealing strip and the second sealing strip 33 at the other end of the protective sleeve 8; similarly, a second sealing member (not shown in the figure) is provided at one end of the bracket 2 facing the unfolded protective sleeve 8, and a second felt sealing member 36 for preventing dust from entering through the mating part of the third sealing strip 51 and the fourth sealing strip 52 and the bracket 2.

[0044] In addition, in this embodiment, a first sealing baffle 21 is provided at one end of the fixed rail 11 away from the deployed protective cover 8 ; a second sealing baffle (not shown) is provided at one end of the deployed protective cover 8 facing the fixed rail 11 .

[0045] The protective device adopting the above-mentioned structural design can completely shield and protect the multi-stage slide rails, thereby effectively preventing the multi-stage slide rails from being obstructed from retracting and extending due to wind and sand, wind and rain, etc., and reducing their service life.

[0046] In addition, in order to gather the rainwater that penetrates into the above-mentioned protective device in the slideway of the multi-stage slide rail, the present embodiment preferably provides a water guide groove 111 and a drainage hole at the bottom of the fixed slide rail 11 of the multi-stage slide rail to timely drain the penetrated rainwater.

[0047] The protective device with the above structural design can be used in a variety of outdoor occasions. Figure 8 As shown, taking the installation of the solar panel of the RV as an example, the above-mentioned protective devices can be installed on the base 701 on the roof in parallel and at intervals, and then the expandable solar panel 702 can be installed on the top or between the two protective devices, and the solar panel 702 is fastened to the last slide rail 12 in the protective device, and then it is retracted and extended synchronously with the multi-stage slide rail. In this way, it can effectively avoid the problem that when the RV solar panel 702 is charged outdoors, the multi-stage slide rail is blocked from being retracted and extended due to wind and sand invasion, wind and rain, etc., and the solar panel 702 cannot be retracted and extended normally.

[0048] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A protective device for a multi-stage slide rail, characterized in that, Comprising: Multi-stage slide rail; A bracket for erecting the multi-stage slide rail; A protective cover sleeved on the multi-stage slide rail and synchronously retracting and extending with the multi-stage slide rail. The protective cover is sealed and fastened to the last-stage slide rail of the multi-stage slide rail, and an opening for slidingly mating with the bracket wall of the bracket is formed in the protective cover along the length direction; A sealing assembly cooperating with the protective cover for sealing the exposed part of the multi-stage slide rail after the protective cover is synchronously extended with the multi-stage slide rail. The sealing assembly is provided with a channel facilitating the sliding of the protective cover along the retracting and extending direction of the multi-stage slide rail; When the protective cover is extended, the channel located at the exposed part of the multi-stage slide rail is closed; when the protective cover is retracted, the channel located at the exposed part of the multi-stage slide rail is separated by a side wall of the protective cover.

2. The protective device for a multi-stage slide rail according to claim 1, characterized in that, The sealing assembly includes a first sealing strip and a second sealing strip disposed on opposite sides of a side wall of the protective cover. The first sealing strip includes an upper sealing strip and a lower sealing strip, and the upper sealing strip and the lower sealing strip are respectively fastened to the upper and lower side walls of the opening of the fixed slide rail of the multi-stage slide rail; the second sealing strip is fastened to an external support member; a switchable channel is provided between the first sealing strip and the second sealing strip.

3. The protective device for a multi-stage slide rail according to claim 2, characterized in that, When the protective cover is synchronously extended with the multi-stage slide rail, the upper sealing strip and the lower sealing strip located at the exposed part of the multi-stage slide rail are respectively closed with the second sealing strip; When the protective cover is synchronously retracted with the multi-stage slide rail, the upper sealing strip and the lower sealing strip located at the exposed part of the multi-stage slide rail are separated from the second sealing strip under the action of a side wall of the protective cover.

4. The protective device for a multi-stage slide rail according to claim 2, wherein, One end of the protective cover is sealed, and the other end of the protective cover is provided with a first sealing member slidably mating with the fixed slide rail of the multi-stage slide rail, and a first felt sealing member for sealing the opening and closing part between the first sealing strip and the second sealing strip.

5. The protective device for a multi-stage slide rail according to claim 4, characterized in that, A third sealing strip and a fourth sealing strip are respectively disposed on both sides of the opening; when the protective cover is synchronously extended with the multi-stage slide rail, the third sealing strip is closed with the fourth sealing strip; when the protective cover is synchronously retracted with the multi-stage slide rail, the third sealing strip and the fourth sealing strip are separated under the action of the bracket.

6. The protective device for a multi-stage slide rail according to claim 5, wherein, One end of the bracket facing the extended protective cover is provided with a second sealing member, and a second felt sealing member for sealing the opening and closing part between the third sealing strip and the fourth sealing strip.

7. The protective device for a multi-stage slide rail according to claim 6, characterized in that, Partition protrusions are provided at the ends of a side wall of the protective cover and at the ends of the bracket.

8. The protective device for a multi-stage slide rail according to claim 5, characterized in that, The upper sealing strip, the lower sealing strip, the second sealing strip, the third sealing strip and the fourth sealing strip are all provided as magnetic strips or zippers.

9. A protective device for a multi-stage slide rail according to claim 1, characterized in that, A water guide groove and a drain hole are provided at the bottom of the fixed slide rail of the multi-stage slide rail.

10. The protective device for a multi-stage slide rail according to claim 2, characterized in that, A first sealing baffle is provided at one end of the fixed slide rail away from the extended protective cover; a second sealing baffle is provided at one end of the extended protective cover facing the fixed slide rail.

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