Extension device for motor home

Abstract

The extension device comprises a vehicle body, one side of the vehicle body is movably connected with a rotating handle in a sleeved mode, one side of the rotating handle is fixedly connected with a first bevel gear, the surface of the first bevel gear is connected with a second bevel gear in a meshed mode, and the second bevel gear is fixedly installed on the surface of a threaded rod. A threaded block is in threaded connection with the surface of the threaded rod, a connecting rod is hinged to the top end of the threaded block, and a movable rod is movably sleeved with the top end of the connecting rod. A rotating handle is screwed to drive a first bevel gear to rotate, the first bevel gear is meshed to drive a second bevel gear to rotate, and then a threaded rod is driven to rotate, so that a threaded block moves on the surface of the threaded rod in a threaded mode, a connecting rod is driven to adjust the angle, an expansion frame is pushed, and the expansion frame is unfolded in a groove; therefore, one side of the vehicle body is expanded, the vehicle body is expanded more conveniently through screwing, and the rotation stability is also improved through rotation of the gears.

Description

Technical Field

[0001] The utility model relates to the technical field of recreational vehicles, and in particular to an expansion device for recreational vehicles. Background Art

[0002] RV, also known as home on wheels, has both functions of house and car, but its attribute is still a car. It is a movable type of vehicle with basic facilities necessary for home. The home facilities on the RV are complete and can be divided into driving area, living area, bedroom area, sanitary area, kitchen area, etc. RV is a fashionable product that integrates clothing, food, housing and transportation, realizing travel in life and life while traveling.

[0003] However, when the above-mentioned structure is used as an expansion device for an RV, due to the limitation of the area of ​​the RV, the overall use area of ​​the RV will also be limited, so it is necessary to have an expansion function on the outside of the RV. At the same time, the angle required for expansion will be different in different weather, so as to avoid the fixed angle being affected by the environment and being unable to use the expansion function. Manual support during expansion will affect the convenience of use. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an expansion device for RVs. When expanding, due to the limitation of the area of ​​the RV, the overall use area of ​​the RV will also be limited, so it is necessary for the outer side of the RV to have an expansion function. At the same time, the angle required for expansion will be different in different weather, so as to avoid the fixed angle being affected by the environment and being unable to use the expansion function. Manual support during expansion will affect the convenience of use.

[0005] To achieve the above-mentioned purpose, an expansion device for a motorhome is provided, comprising a body, a turning handle movably sleeved on one side of the body, and a first bevel gear is fixedly connected to one side of the turning handle, a second bevel gear is meshingly connected to the surface of the first bevel gear, and the second bevel gear is fixedly installed on the surface of a threaded rod, a threaded block is threadedly connected to the surface of the threaded rod, and a connecting rod is hingedly connected to the top of the threaded block, a movable rod is movably sleeved inside the top of the connecting rod, and the movable rod is installed at the bottom of the expansion frame.

[0006] By turning the handle, the first bevel gear is driven to rotate, and the second bevel gear is driven to rotate through the meshing of the first bevel gear, which drives the threaded rod to rotate, so that the threaded block moves threadedly on the surface of the threaded rod, thereby driving the connecting rod to adjust the angle, pushing the expansion frame, so that the expansion frame is unfolded in the groove, thereby realizing the expansion of one side of the vehicle body. The unfolding is more convenient by twisting, and the rotation of the gear also increases the stability of the rotation.

[0007] According to the expansion device for a motorhome, the threaded block is movably sleeved with a groove, and the groove is opened on one side of the vehicle body, and one side of the expansion frame is hingedly installed inside the groove.

[0008] According to the expansion device for a motorhome, sliding blocks are fixedly installed on both sides of the threaded block, and the sliding blocks are movably sleeved inside the sliding grooves, and the sliding grooves are arranged inside the grooves.

[0009] According to the expansion device for a motorhome, a movable ring is movably sleeved on the surface of the connecting rod, and a gear belt is fixedly installed on the inner wall of the movable ring, a first gear is meshedly connected to the surface of the gear belt, and a second gear is meshedly connected to the surface of the first gear, the first gear and the second gear are installed inside a slot, and the slot is opened inside the connecting rod, the second gear is fixedly installed on the surface of the screw rod, and the screw rod is threadedly connected to the top of the movable rod.

[0010] According to the expansion device for a recreational vehicle, the top end of the movable rod is hinged to the bottom end of the limiting block.

[0011] According to the expansion device for a motorhome, a limiting groove is provided at the bottom end of the expansion frame.

[0012] According to the expansion device for a motorhome, a telescopic rod is installed on the inner wall of the expansion frame, and a support rod is fixedly installed on one side of the telescopic rod, and the support rod is movably sleeved inside the expansion frame.

[0013] By twisting the movable ring, the gear belt is driven to rotate, and the first gear and the second gear are driven to rotate through the meshing of the gear belt, and then the screw rod is driven to rotate, so that the movable rod is threadedly rotated on the surface of the screw rod, so that the movable rod slides on the top of the connecting rod, and the movable rod pushes the limit block to slide in the limit groove. Due to the extension of the length of the connecting rod and the movable rod, the expansion frame is pushed, so that the expansion frame is expanded in the groove, so that the expansion angle can be adjusted. When the expansion frame is fully expanded, the extension effect of the telescopic rod drives the support rod to move, so that the shielding object can be telescoped and expanded, thereby realizing the expansion of one side of the vehicle body.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a structural diagram of an expansion device for a motorhome according to the utility model;

[0017] Figure 2 The utility model is an expansion device for a motorhome Figure 1 A magnified structural diagram of a partial section of the middle vehicle body;

[0018] Figure 3 The utility model is an expansion device for a motorhome Figure 2 Partial cross-section structure diagram of the middle vehicle body;

[0019] Figure 4 The utility model is an expansion device for a motorhome Figure 3 Cross-sectional structural diagram of the middle connecting rod;

[0020] Figure 5 The utility model is an expansion device for a motorhome Figure 3 A partial cross-sectional enlarged structural diagram of the middle connecting rod and the movable rod;

[0021] Figure 6 The utility model is an expansion device for a motorhome Figure 2 Enlarged top view of the partial section of the middle expansion rack.

[0022] Legend:

[0023] 1. Car body; 2. Turning handle; 3. First bevel gear; 4. Second bevel gear; 5. Threaded rod; 6. Threaded block; 7. Groove; 8. Connecting rod; 9. Slider; 10. Slide; 11. Movable ring; 12. Gear belt; 13. First gear; 14. Second gear; 15. Screw; 16. Slot; 17. Movable rod; 18. Limit block; 19. Limit slot; 20. Extension frame; 21. Telescopic rod; 22. Support rod. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figures 1 to 6The utility model embodiment is an expansion device for a motorhome, comprising a body 1, a handle 2 is movably sleeved on one side of the body 1, and a first bevel gear 3 is fixedly connected to one side of the handle 2, the surface of the first bevel gear 3 is meshedly connected to a second bevel gear 4, and the second bevel gear 4 is fixedly installed on the surface of a threaded rod 5, a threaded block 6 is threadedly connected to the surface of the threaded rod 5, and a connecting rod 8 is hingedly connected to the top of the threaded block 6, and a movable rod 17 is movably sleeved inside the top of the connecting rod 8, and the movable rod 17 is installed at the bottom of the expansion frame 20. By twisting the handle 2, the first bevel gear 3 is driven to rotate, and the second bevel gear 4 is driven to rotate by meshing with the first bevel gear 3, and then the threaded rod 5 is driven to rotate, so that the threaded block 6 is threadedly moved on the surface of the threaded rod 5, thereby driving the connecting rod 8 to adjust the angle, so as to realize the angular expansion of the expansion frame 20.

[0026] The thread block 6 is movably sleeved with a groove 7, and the groove 7 is opened on one side of the vehicle body 1, and one side of the expansion frame 20 is hingedly installed inside the groove 7. The groove 7 plays a good storage role and also plays a good role in limiting the thread block 6.

[0027] Slide blocks 9 are fixedly mounted on both sides of the threaded block 6, and the slide blocks 9 are movably sleeved inside the slide grooves 10, and the slide grooves 10 are opened inside the grooves 7. When the threaded block 6 slides in the grooves 7, the slide blocks 9 slide in the slide grooves 10, providing stability for the sliding of the threaded block 6.

[0028] The surface of the connecting rod 8 is movably sleeved with a movable ring 11, and a gear belt 12 is fixedly installed on the inner wall of the movable ring 11, and the surface of the gear belt 12 is meshed with a first gear 13, and the surface of the first gear 13 is meshed with a second gear 14, the first gear 13 and the second gear 14 are installed inside the card slot 16, and the card slot 16 is opened inside the connecting rod 8, and the second gear 14 is fixedly installed on the surface of the screw rod 15, and the screw rod 15 is threadedly connected to the top of the movable rod 17. By twisting the movable ring 11, the first gear 13 and the second gear 14 are driven to rotate through the meshing of the gear belt 12, and then the screw rod 15 is driven to rotate, so that the movable rod 17 is threadedly rotated on the surface of the screw rod 15, so that the movable rod 17 slides at the top of the connecting rod 8, and due to the extension of the length of the connecting rod 8 and the movable rod 17, the expansion frame 20 is pushed, so that the expansion frame 20 is expanded in the groove 7.

[0029] The top of the movable rod 17 is hinged to the bottom of the limit block 18, and a limit slot 19 is provided at the bottom of the expansion frame 20. When the movable rod 17 is pushed, the movable rod 17 pushes the expansion frame 20 to rotate and provide a pushing space, and the limit slot 19 also plays the role of limiting the movable rod 17, preventing the expansion frame 20 from rotating in the reverse direction and driving the limit block 18 to move, thereby providing space for the expansion frame 20 to rotate in the reverse direction.

[0030] A telescopic rod 21 is installed on the inner wall of the expansion frame 20, and a support rod 22 is fixedly installed on one side of the telescopic rod 21, and the support rod 22 is movably sleeved inside the expansion frame 20. Through the extension of the telescopic rod 21, the support rod 22 is driven to move, so that the shielding object can be telescoped and unfolded.

[0031] Working principle: first, by turning the handle 2, the first bevel gear 3 is driven to rotate, and the second bevel gear 4 is driven to rotate through the engagement of the first bevel gear 3, and then the threaded rod 5 is driven to rotate, so that the threaded block 6 is threadedly moved on the surface of the threaded rod 5, thereby driving the connecting rod 8 to adjust the angle, and then the movable ring 11 is turned to drive the gear belt 12 to rotate, and the first gear 13 and the second gear 14 are driven to rotate through the engagement of the gear belt 12, and then the screw 15 is driven to rotate, so that the movable rod 17 is threadedly rotated on the surface of the screw 15, so that the movable rod 17 slides on the top of the connecting rod 8, and the movable rod 17 pushes the limit block 18 to slide in the limit groove 19. Due to the extension of the length of the connecting rod 8 and the movable rod 17, the expansion frame 20 is pushed, so that the expansion frame 20 is expanded in the groove 7. When the expansion frame 20 is fully expanded, the extension of the telescopic rod 21 drives the support rod 22 to move, so that the shielding object can be telescopically expanded, thereby realizing the expansion of one side of the vehicle body 1.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An expansion device for a motorhome, characterized in that: The invention comprises a vehicle body (1), a rotating handle (2) being movably sleeved on one side of the vehicle body (1), and a first bevel gear (3) being fixedly connected to one side of the rotating handle (2), a second bevel gear (4) being meshingly connected to the surface of the first bevel gear (3), and the second bevel gear (4) being fixedly mounted on the surface of a threaded rod (5), a threaded block (6) being threadedly connected to the surface of the threaded rod (5), and a connecting rod (8) being hingedly connected to the top of the threaded block (6), a movable rod (17) being movably sleeved inside the top of the connecting rod (8), and the movable rod (17) being mounted on the bottom of an expansion frame (20).

2. An expansion device for a motorhome according to claim 1, characterized in that: The threaded block (6) is movably sleeved with a groove (7), and the groove (7) is provided on one side of the vehicle body (1), and one side of the expansion frame (20) is hingedly mounted inside the groove (7).

3. The expansion device for a motorhome according to claim 1, characterized in that: Slide blocks (9) are fixedly mounted on both sides of the threaded block (6), and the slide blocks (9) are movably sleeved inside the slide grooves (10), and the slide grooves (10) are arranged inside the grooves (7).

4. The expansion device for a motorhome according to claim 1, characterized in that: A movable ring (11) is movably sleeved on the surface of the connecting rod (8), and a gear belt (12) is fixedly mounted on the inner wall of the movable ring (11); a first gear (13) is meshingly connected to the surface of the gear belt (12), and a second gear (14) is meshingly connected to the surface of the first gear (13); the first gear (13) and the second gear (14) are mounted inside a slot (16), and the slot (16) is provided inside the connecting rod (8); the second gear (14) is fixedly mounted on the surface of a screw rod (15), and the screw rod (15) is threadedly connected to the top end of the movable rod (17).

5. The expansion device for a motorhome according to claim 4, characterized in that: The top end of the movable rod (17) is hinged to the bottom end of the limiting block (18).

6. The expansion device for a motorhome according to claim 1, characterized in that: A limiting groove (19) is provided at the bottom end of the expansion frame (20).

7. The expansion device for a motorhome according to claim 1, characterized in that: A telescopic rod (21) is installed on the inner wall of the expansion frame (20), and a support rod (22) is fixedly installed on one side of the telescopic rod (21), and the support rod (22) is movably sleeved inside the expansion frame (20).

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