Jack for side rocking type motor home

By designing the sleeve assembly and drive assembly, the movable sleeve can be raised, lowered, and its length adjusted, solving the problem of inflexible operation of the jack used in existing side-rocking RVs. This enables convenient length adjustment and disassembly, adapting to different ground heights and offering high economic efficiency.

CN223480682UActive Publication Date: 2025-10-28NINGBO JINGTENG ZHICHENGLONG MASCH CO LTD
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Patent Information

Application Number
CN202422822986.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-10-28
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

The existing jack for side-rocking RVs cannot adjust the extension length of the movable sleeve, resulting in inflexible operation, inability to adapt to different ground heights, and low applicability.

Method used

A side-swing jack for motorhomes was designed, including a sleeve assembly and a drive assembly. The drive assembly drives the first movable sleeve to rise and fall, and the second movable sleeve moves synchronously to achieve length adjustment. The position is fixed by a limiting assembly to ensure that the base plate contacts the ground.

Benefits of technology

It achieves convenient length adjustment and easy assembly/disassembly, adapts to different ground heights, improves operational flexibility and economy, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a jack, in particular to a jack for a side shaking type motor home, which comprises a sleeve body assembly and a driving assembly, the sleeve body assembly comprises a fixed sleeve, a first movable sleeve and a second movable sleeve, the fixed sleeve is movably connected with the first movable sleeve, the first movable sleeve is movably connected with the first movable sleeve, and the second movable sleeve is movably connected with the second movable sleeve. The first movable sleeve is fixedly connected with the second movable sleeve, the driving assembly is matched with the fixed sleeve and the first movable sleeve, the driving assembly is arranged to be capable of driving the first movable sleeve to ascend and descend by a preset height, and meanwhile the second movable sleeve synchronously moves by a preset distance along with the first movable sleeve. According to the utility model, the advantages of convenience in use, convenience in length adjustment and convenience in disassembly and assembly can be realized by effectively utilizing the self structural configuration.
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Description

Technical Field

[0001] This application relates to jacks, and more specifically to a side-swing jack for motorhomes. Background Technology

[0002] The partial structure of the jack used in existing side-swing RVs, such as Figure 4 As shown, it includes a fixed sleeve and a movable sleeve, the movable sleeve being movable to engage with the fixed sleeve vertically. However, this type of solution cannot adjust the extension length of the movable sleeve, meaning its extension distance is limited, and its height cannot be flexibly adjusted according to the situation, resulting in inflexible operation and unusable in situations with large ground heights, thus limiting its applicability. Therefore, there is a need for a side-crank jack for motorhomes that is easy to use, has convenient length adjustment, and is easy to assemble and disassemble. Summary of the Invention

[0003] The main purpose of this application is to provide a side-swing jack for motorhomes, wherein the side-swing jack can effectively utilize its own structural configuration to achieve the advantages of convenient length adjustment and easy assembly and disassembly.

[0004] Another objective of this application is to provide a side-swing jack for motorhomes, wherein the side-swing jack includes a body assembly and a drive assembly. The body assembly includes a fixed sleeve, a first movable sleeve, and a second movable sleeve. The fixed sleeve is movably connected to the first movable sleeve, and the first movable sleeve is fixedly connected to the second movable sleeve. The drive assembly cooperates with both the fixed sleeve and the first movable sleeve, and the drive assembly is configured to drive the first movable sleeve to rise and fall a predetermined height. Simultaneously, the second movable sleeve moves synchronously a predetermined distance with the first movable sleeve. The lengths of the second movable sleeve and the first movable sleeve can be manually adjusted, that is, the length of the second movable sleeve can be adjusted, thereby enabling rapid adjustment at different ground heights.

[0005] Another objective of this application is to provide a side-swinging jack for motorhomes, wherein the side-swinging jack has a simple structure, is easy to operate, does not involve complex manufacturing processes and expensive materials, has high economic efficiency, and is easy to promote and use.

[0006] To achieve at least one of the above-mentioned inventive objectives, this application provides a side-swing jack for motorhomes, wherein the side-swing jack for motorhomes comprises:

[0007] A set of body components and a drive component, the set of body components including a fixed sleeve, a first movable sleeve and a second movable sleeve, the fixed sleeve being movably connected to the first movable sleeve, the first movable sleeve being fixedly connected to the second movable sleeve, and the drive component cooperating with both the fixed sleeve and the first movable sleeve, and the drive component being configured to drive the first movable sleeve to rise and fall a predetermined height, while the second movable sleeve moves synchronously a predetermined distance with the first movable sleeve.

[0008] In one or more embodiments of this application, the drive assembly includes a rotating shaft and a connecting handle, one end of the rotating shaft passing through the fixed sleeve and near the top of the fixed sleeve, and the other end being fixedly connected to the connecting handle.

[0009] In one or more embodiments of this application, the drive assembly includes a gear and a connecting shaft. The gear is located inside the fixed sleeve and meshes with the rotating shaft. The bottom of the gear is fixedly connected to one end of the connecting shaft, and the other end of the connecting shaft passes through the first movable sleeve and is located inside the second movable sleeve.

[0010] In one or more embodiments of this application, a first cover plate is welded inside the fixing sleeve, and the gear component is disposed on the first cover plate.

[0011] In one or more embodiments of this application, a second cover plate is fixed to the top of the first movable sleeve, and a bushing is welded to the center of the second cover plate, and the connecting shaft also cooperates with the bushing.

[0012] In one or more embodiments of this application, a base plate is welded to the bottom of the second movable sleeve, and the driving assembly further includes a first elastic member, one end of which is fixed to the bottom of the connecting shaft and the other end is fixed to the base plate. A connecting ring is also welded to the base plate, and the end of the first elastic member is fastened to the connecting ring.

[0013] In one or more embodiments of this application, the outer wall of the second movable sleeve also has a plurality of positioning holes arranged vertically and at intervals, and the plurality of positioning holes all penetrate the second movable sleeve. The side-rocking RV jack also includes a first connecting plate and a second connecting plate. The first connecting plate is fixed on the first movable sleeve and close to the bottom of the movable sleeve, and the first connecting plate is spaced at a predetermined distance from the bottom plate. The second connecting plate is an arc-shaped plate, and one end of the second connecting plate is welded to the side of the first connecting plate away from the first movable sleeve.

[0014] In one or more embodiments of this application, a partition is further fixed to the inner side of the second connecting plate, and the partition has a first insertion hole at its center. The first connecting plate has a second insertion hole, and the second insertion hole is directly opposite the first insertion hole.

[0015] In one or more embodiments of this application, the side-swing RV jack further includes a limiting component, which includes an insert, a support plate, and a second elastic member. One end of the insert passes through the first insertion hole, the second insertion hole, and the corresponding positioning hole in sequence and is placed inside the second movable sleeve. The other end of the insert is located on the outside. The outer wall of the insert also has an annular protrusion located between the first insertion hole and the second insertion hole. The support plate is sleeved on the insert and located on the side of the annular protrusion closer to the first insertion hole. One end of the elastic member abuts against the support plate, and the other end abuts against the partition plate.

[0016] In one or more embodiments of this application, the externally placed insert is hook-shaped. Attached Figure Description

[0017] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein:

[0018] Figure 1 The diagram shows a cross-sectional structure of a jack for a side-swinging RV.

[0019] Figure 2 The diagram shows a structural schematic of a jack for a side-swinging RV.

[0020] Figure 3 The diagram shows the structure of the limiting component.

[0021] Figure 4 The diagram illustrates a partial structural schematic of an existing vehicle jack. Detailed Implementation

[0022] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0023] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0024] While ordinal numbers such as "first," "second," etc., will be used to describe various components, there is no limitation on which components are used herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0026] refer to Figures 1 to 3 According to a preferred embodiment of the present invention, a side-climbing RV jack is provided, wherein the structure of the side-climbing RV jack is as follows: Figure 1 As shown, it includes a body assembly 10 and a drive assembly 20. The body assembly 10 includes a fixed sleeve 11, a first movable sleeve 12, and a second movable sleeve 13. The fixed sleeve 11 is movably connected to the first movable sleeve 12, and the first movable sleeve 12 is fixedly connected to the second movable sleeve 13. The drive assembly 20 cooperates with both the fixed sleeve 11 and the first movable sleeve 12, and is configured to drive the first movable sleeve 12 to rise or fall a predetermined height, while the second movable sleeve 13 moves synchronously with the first movable sleeve 12 a predetermined distance. That is, those skilled in the art should understand that when the first movable sleeve 12 moves downward a predetermined distance, the second movable sleeve 13 is configured to contact the ground.

[0027] It should be noted that the drive assembly 20 includes a rotating shaft 21 and a connecting handle 22. One end of the rotating shaft 21 passes through the fixing sleeve 11 and is close to the top of the fixing sleeve 11, while the other end is fixedly connected to the connecting handle 22. The connection method between the rotating shaft 21 and the rotating handle 22 is as follows: Figure 2As shown, those skilled in the art should understand that the user can hold the aforementioned connecting handle 22 and synchronously drive the rotating shaft 21 by rotating the connecting handle 22.

[0028] Specifically, the drive assembly 20 includes a gear 23 and a connecting shaft 24. The gear 23 is located inside the fixed sleeve 11 and meshes with the rotating shaft 21. The bottom of the gear 23 is fixedly connected to one end of the connecting shaft 24. The other end of the connecting shaft 24 passes through the first movable sleeve 12 and is located inside the second movable sleeve 13.

[0029] It is worth mentioning that a first cover plate 111 is also welded inside the fixed sleeve 11, and the gear component 23 is disposed on the first cover plate 111, thereby supporting the gear component 23 and limiting the rotation shaft 21.

[0030] It should also be noted that a second cover plate 121 is fixed to the top of the first movable sleeve 12, and a bushing 122 is welded to the center of the second cover plate 121. The connecting shaft 24 also cooperates with the bushing 122, and the connection between the connecting shaft 24 and the bushing 122 can be implemented as a lead screw and slider connection. That is, when the connecting shaft 24 rotates, since the connecting shaft 24 is fixed, the bearing will move up and down a predetermined distance along the connecting shaft 24, and at the same time, the first movable sleeve 12 fixed to the bushing 122 moves up and down synchronously.

[0031] Among them, such as Figure 1 As shown, a base plate 131 is welded to the bottom of the second movable sleeve 13, and the drive assembly 20 also includes a first elastic member 25. One end of the first elastic member 25 is fixed to the bottom of the connecting shaft 24, and the other end is fixed to the base plate 131. Specifically, a connecting ring 132 is also welded to the base plate 131, and the end of the first elastic member 25 is fastened to the connecting ring 132, thereby defining the position of the first elastic member 25.

[0032] It should also be noted that the outer wall of the second movable sleeve 13 also has a plurality of positioning holes 1301 arranged vertically and at intervals, and all of the positioning holes 1301 penetrate the second movable sleeve 13.

[0033] It is worth mentioning that the jack for the side-swinging RV also includes a first connecting plate 30 and a second connecting plate 40. The first connecting plate 30 is fixed to the first movable sleeve 12 and close to the bottom of the movable sleeve, and the first connecting plate 30 is spaced from the bottom plate 131 by a predetermined distance. The second connecting plate 40 is an arc-shaped plate, and one end of the second connecting plate 40 is welded to the side of the first connecting plate 30 away from the first movable sleeve 12. Specifically, a partition 50 is fixed to the inner side of the second connecting plate 40, and the partition 50 has a first insertion hole 501 at its center. The first connecting plate 30 has a second insertion hole 301, and the second insertion hole 301 is directly opposite the first insertion hole 501. It should also be noted that the second movable sleeve 13 can move up and down a predetermined distance so that the positioning hole 1301 is directly opposite the second insertion hole 301, and the first elastic member 25 located in the second movable sleeve 13 deforms.

[0034] Specifically, the jack for the side-swinging RV also includes a limiting component 60, which is configured to cooperate with one of the positioning holes 1301 to limit the position of the second movable sleeve 13. That is, through the limiting component 60, the second movable sleeve 13 and the first elastic member 25, the user can select the extension length of the second movable sleeve 13, thereby ensuring that the bottom plate 131 at the bottom of the second movable sleeve 13 can contact the ground.

[0035] Furthermore, the limiting component 60 includes an insert 61, a support piece 62, and a second elastic member 63. One end of the insert 61 passes through the first insertion hole 501, the second insertion hole 301, and the corresponding positioning hole 1301 in sequence, and is placed inside the second movable sleeve 13. The other end of the insert 61 is located on the outside. The outer wall of the insert 61 also has an annular protrusion located between the first insertion hole 501 and the second insertion hole 301. The support piece 62 is sleeved on the insert 61 and is located on the side of the annular protrusion closer to the first insertion hole 501. One end of the elastic member abuts against the support piece 62, and the other end abuts against the partition plate 50. It should be noted that the externally placed insert 61 is hook-shaped, making it easy for the user to hold the end of the insert 61 and apply a pulling force to it. This causes the end of the insert 61, which is placed inside the second movable sleeve 13, to sequentially disengage from the positioning hole 1301 and the second insertion hole 301. At this time, the insert 61 no longer connects the first movable sleeve 12 and the second movable sleeve 13. The second movable sleeve 13 can then move up and down a predetermined distance, allowing the user to adjust the extension length of the second movable sleeve 13. In addition, the second elastic member 63 is compressed at this time. After the user adjusts the position of the second movable sleeve 13 to the correct position, the user can release the insert 61. At this time, the end of the insert 61 near the second insertion hole 301 will return to its original position due to the force of the second elastic member 63. At this time, the second movable sleeve 13 cannot move up and down.

[0036] It should be noted that the advantage of this application lies in its ability to adjust the position of the aforementioned base plate 131 by changing different ground heights, so that the base plate 131 of this utility model can contact the ground, while the partial structure of existing side-swing RV jacks, such as Figure 4 As shown, its extension distance is limited and its height cannot be flexibly adjusted according to the occasion. Therefore, compared with this application, its operation is not flexible and it cannot be used when the ground height is large, so its applicability is low.

[0037] In summary, the side-crank jack for motorhomes described in the embodiments of this application is explained, which provides advantages such as ease of use, convenient length adjustment, and easy assembly and disassembly.

[0038] It is worth mentioning that, in this embodiment, the side-swing RV jack has a simple structure, does not involve complex manufacturing processes or expensive materials, and is highly economical. At the same time, for manufacturers, the side-swing RV jack provided in this application is easy to produce and inexpensive, which is more conducive to controlling production costs and further facilitates product promotion and use.

[0039] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from these principles.

Claims

1. A jack for a side-swinging RV, characterized in that, The jack for the side-swing RV includes: A set of body components and a drive component, the set of body components including a fixed sleeve, a first movable sleeve and a second movable sleeve, the fixed sleeve being movably connected to the first movable sleeve, the first movable sleeve being fixedly connected to the second movable sleeve, and the drive component cooperating with both the fixed sleeve and the first movable sleeve, and the drive component being configured to drive the first movable sleeve to rise and fall a predetermined height, while the second movable sleeve moves synchronously a predetermined distance with the first movable sleeve.

2. The jack for a side-swinging RV according to claim 1, wherein the drive assembly includes a rotating shaft and a connecting handle, one end of the rotating shaft passes through the fixing sleeve and is close to the top of the fixing sleeve, and the other end is fixedly connected to the connecting handle.

3. The jack for a side-swinging RV according to claim 2, wherein the driving assembly includes a gear and a connecting shaft, the gear is located inside the fixed sleeve and meshes with the rotating shaft, the bottom of the gear is fixedly connected to one end of the connecting shaft, and the other end of the connecting shaft passes through the first movable sleeve and is located inside the second movable sleeve.

4. The jack for a side-swinging RV according to claim 3, wherein a first cover plate is welded inside the fixing sleeve, and the gear component is disposed on the first cover plate.

5. The jack for a side-swinging RV according to claim 4, wherein a second cover plate is fixed to the top of the first movable sleeve, and a bushing is welded to the center of the second cover plate, and the connecting shaft also cooperates with the bushing.

6. The side-swing jack for motorhomes according to claim 5, wherein a base plate is welded to the bottom of the second movable sleeve, and the drive assembly further includes a first elastic member, one end of the first elastic member is fixed to the bottom of the connecting shaft, and the other end is fixed to the base plate, wherein a connecting ring is welded to the base plate, and the end of the first elastic member is fastened to the connecting ring.

7. The jack for a side-swinging RV according to claim 6, wherein the outer wall of the second movable sleeve further has a plurality of positioning holes arranged vertically and at intervals, and the plurality of positioning holes all penetrate the second movable sleeve; the jack for a side-swinging RV further includes a first connecting plate and a second connecting plate; the first connecting plate is fixed on the first movable sleeve and close to the bottom of the movable sleeve, and the first connecting plate is also spaced at a predetermined distance from the bottom plate; wherein the second connecting plate is an arc-shaped plate, and one end of the second connecting plate is welded to the side of the first connecting plate away from the first movable sleeve.

8. The jack for a side-swinging RV according to claim 7, wherein a partition is fixed to the inner side of the second connecting plate, and the partition has a first insertion hole at its center, the first connecting plate has a second insertion hole, and the second insertion hole is directly opposite the first insertion hole.

9. The side-climbing RV jack according to claim 8, wherein the side-climbing RV jack further includes a limiting component, the limiting component including an insert, a support plate and a second elastic member, one end of the insert passing through the first insertion hole, the second insertion hole and the corresponding positioning hole in sequence, and placed inside the second movable sleeve, and the other end of the insert being located outside, and the outer wall of the insert also having an annular protrusion, the annular protrusion being located between the first insertion hole and the second insertion hole, and the support plate being sleeved on the insert and located on the side of the annular protrusion near the first insertion hole, one end of the elastic member abutting against the support plate, and the other end abutting against the partition plate.

10. The jack for a side-swinging RV according to claim 9, wherein the externally positioned insert is hook-shaped.