Lifting and supporting device for motor caravan

Abstract

The utility model relates to the technical field of supporting, in particular to a motor caravan lifting supporting device which prevents universal wheels from moving when the device carries out supporting operation through supporting columns, prevents the device from moving easily in the parking process, further improves the stabilizing effect of the device in the relative static process and improves the stability of the device. The practicability is improved; a supporting column is rotationally mounted at the bottom end of the supporting table through a rotating mechanism, a universal wheel is rotationally mounted at the bottom end of the supporting column, and two fixing mechanisms are symmetrically arranged on the outer side wall of the universal wheel; the fixing mechanism comprises a limiting plate, two supports are symmetrically and rotationally installed on the outer side wall of the supporting column through a rotating shaft, the top end of the limiting plate is fixedly connected with the bottom end of each support, the outer side wall of the limiting plate is tightly attached to the outer side wall of the universal wheel, a sliding groove is formed in one end of the fixing base, and the sliding groove is in sliding connection with the sliding plate; the bottom end of the supporting table is connected with the outer side wall of the supporting column through a power mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of support, in particular to a lifting support device for a caravan. Background Art

[0002] With the rapid development and update of the RV industry, the design of this product plays a decisive role in the future roof expansion of the RV. It is necessary to consider the rigidity and structure of the product and to maximize the toughness of the product. When the RV drives away, the support is needed to provide support for the front side of the trailer.

[0003] For example, after searching, the utility model patent with Chinese patent publication number CN208915055U discloses: a trailer-type caravan, including a frame, a car body, a trailer frame and guide wheels, the car body is fixed on the upper side of the car frame, the trailer frame is fixed on the front end of the car frame, the guide wheels are connected to the trailer frame through a lifting device, and a handbrake handle connected to the brake is provided on the front side of the car frame; an upper bed and a lower bed are provided at the front of the inner side of the car body, two sofa seats are provided at the rear of the inner side of the car body, and a lifting table is provided between the two sofa seats, the trailer is conveniently connected to the trailer frame, and the guide wheels will not affect the normal driving of the vehicle. When the caravan is idle, the handbrake handle is used to act on the brake of the running wheel, and the fixation is more stable;

[0004] However, the above existing devices still have the following problems in actual use:

[0005] The fixing effect of the guide wheel in the above-mentioned existing device is poor, and it is easy to move during the parking process of the device, which affects the stability of the device during the relative static process. Therefore, we propose a caravan lifting support device to solve the above-mentioned problems. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies in the prior art, the utility model provides a lifting support device for a caravan which prevents the universal wheels from moving when the device is supporting through a support column, thereby preventing the device from moving easily during parking, thereby improving the stability of the device during relative stillness and improving the practicality of the device.

[0008] (II) Technical solution

[0009] To achieve the above purpose, the utility model provides the following technical solutions: a lifting support device for a caravan, comprising a support platform, a support column is rotatably mounted on the bottom end of the support platform through a rotating mechanism, a universal wheel is rotatably mounted on the bottom end of the support column, and two fixing mechanisms are symmetrically arranged on the outer side wall of the universal wheel;

[0010] The fixing mechanism includes a limit plate, two brackets are symmetrically rotatably installed on the outer wall of the support column through the rotation axis, the top of the limit plate is fixedly connected to the bottom end of each bracket, the outer wall of the limit plate is tightly fitted with the outer wall of the universal wheel, and the bottom end of the limit plate is tightly fitted with the ground, a fixing block is fixedly installed on the outer wall of one of the brackets, a screw is screwed on one end of the fixing block, a fixing seat is fixedly installed on the outer wall of the other bracket, a slide is rotatably installed on the other end of the screw, a slide is opened at one end of the fixing seat, and the slide is slidably connected with the slide;

[0011] The bottom end of the support platform is connected to the outer side wall of the support column through a power mechanism.

[0012] Preferably, the power mechanism includes a cylinder, which is fixedly mounted on the top of the support platform, and a connecting plate is fixedly mounted on the output end of the cylinder. A rotating plate is rotatably mounted on the bottom end of the connecting plate via a first connecting member, and the other end of the rotating plate is rotatably connected to the outer wall of the support column via a second connecting member.

[0013] Furthermore, a protective cover is fixedly mounted on the top of the support platform, and the top area of ​​the cylinder is located inside the protective cover.

[0014] Furthermore, the rotating mechanism includes a limiting shaft, which is rotatably installed in the top area of ​​the support column, and two guard plates are symmetrically fixedly installed at the bottom end of the support platform, and the limiting shaft is rotatably connected to the two guard plates.

[0015] On the basis of the above-mentioned solution, a limit seat is fixedly installed on the bottom end of the support platform, and one end of the limit seat is tightly fitted with the outer side wall of the support column.

[0016] Furthermore, a non-slip strip is provided at the bottom end of each of the limiting plates.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a lifting support device for a caravan, which has the following beneficial effects:

[0019] The lifting support device for the caravan drives the slide plate to slide inside the slide groove provided on the fixed seat by rotating the screw rod, so that the brackets on the top of the two limit plates rotate around the rotating shaft, and the outer side walls of the two limit plates are fitted with the outer side walls of the universal wheels, so as to effectively limit the outer side walls of the universal wheels, so as to prevent the universal wheels from moving when the device is supported by the support column, and to prevent the device from moving easily during parking, so as to improve the stability of the device in the relatively static process and improve the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 Schematic diagram of the connection structure of the middle support column and the fixed block;

[0022] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0024] Markings in the attached drawings: 1. support platform; 2. support column; 3. universal wheel; 4. rotating shaft; 5. bracket; 6. limit plate; 7. fixed block; 8. screw; 9. slide plate; 10. fixed seat; 11. slide groove; 12. cylinder; 13. connecting plate; 14. first connecting member; 15. rotating plate; 16. second connecting member; 17. protective cover; 18. limit shaft; 19. guard plate; 20. limit seat; 21. anti-slip strip. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] See also Figure 1-4A lifting support device for a caravan comprises a support platform 1, a support column 2 is rotatably mounted on the bottom end of the support platform 1 through a rotating mechanism, the rotating mechanism comprises a limit shaft 18, the limit shaft 18 is rotatably mounted on the top area of ​​the support column 2, two guard plates 19 are symmetrically fixedly mounted on the bottom end of the support platform 1, the limit shaft 18 is rotatably connected to the two guard plates 19, and the installation of the limit shaft 18 and the guard plates 19 facilitates the rotation operation of the support column 2, a universal wheel 3 is rotatably mounted on the bottom end of the support column 2, and two fixing mechanisms are symmetrically arranged on the outer side wall of the universal wheel 3; the fixing mechanism comprises a limit plate 6. Two brackets 5 are symmetrically rotatably installed on the outer wall of the support column 2 through the rotating shaft 4. The top of the limiting plate 6 is fixedly connected to the bottom end of each bracket 5. The outer wall of the limiting plate 6 is tightly fitted with the outer wall of the universal wheel 3, and the bottom end of the limiting plate 6 is tightly fitted with the ground. A fixing block 7 is fixedly installed on the outer wall of one of the brackets 5, and a screw 8 is screwed on one end of the fixing block 7. A fixing seat 10 is fixedly installed on the outer wall of the other bracket 5, and a slide plate 9 is rotatably installed on the other end of the screw 8. A slide groove 11 is opened at one end of the fixing seat 10, and the slide groove 11 is slidably connected with the slide plate 9;

[0028] See also Figure 1-4 The bottom end of the support platform 1 is connected to the outer side wall of the support column 2 through a power mechanism, and the power mechanism includes a cylinder 12, which is fixedly mounted on the top of the support platform 1, and a connecting plate 13 is fixedly mounted on the output end of the cylinder 12. A rotating plate 15 is rotatably mounted on the bottom end of the connecting plate 13 through a first connecting member 14, and the other end of the rotating plate 15 is rotatably connected to the outer side wall of the support column 2 through a second connecting member 16. The power is output through the bottom end of the cylinder 12, and then transmitted through the connecting plate 13, the first connecting member 14, the rotating plate 15 and the second connecting member 16, so as to adjust the angle of the support column 2. The caravan lifting support device drives the slide plate 9 to slide inside the slide groove 11 provided on the fixed seat 10 while rotating the screw rod 8, so that the bracket 5 at the top of the two limit plates 6 rotates around the rotating shaft 4, and the outer wall of the two limit plates 6 fits with the outer wall of the universal wheel 3, so as to effectively limit the outer wall of the universal wheel 3, so as to prevent the universal wheel 3 from moving when the device is supported by the support column 2, and prevent the device from moving easily during the parking process, thereby improving the stability effect of the device in the relative static process and improving practicality.

[0029] Embodiment 2

[0030] See also Figure 1-4A lifting support device for a caravan includes a support platform 1, a support column 2 is rotatably mounted on the bottom end of the support platform 1 through a rotating mechanism, a universal wheel 3 is rotatably mounted on the bottom end of the support column 2, a limit seat 20 is fixedly mounted on the bottom end of the support platform 1, one end of the limit seat 20 is tightly fitted with the outer wall of the support column 2, a protective cover 17 is fixedly mounted on the top end of the support platform 1, and the top area of ​​the cylinder 12 is located inside the protective cover 17. By installing the protective cover 17, the cylinder 12 is protected. By installing the limit seat 20 , and then the support column 2 of the supporting operation is limited. Two fixing mechanisms are symmetrically arranged on the outer side wall of the universal wheel 3; the fixing mechanism includes a limiting plate 6, and the bottom end of each limiting plate 6 is provided with an anti-skid strip 21. By providing the anti-skid strip 21, the stability effect of each slide plate 9 when it is in contact with the ground is improved. Two brackets 5 are symmetrically rotatably installed on the outer side wall of the support column 2 through the rotating shaft 4. The top end of the limiting plate 6 is fixedly connected to the bottom end of each bracket 5, and the outer side wall of the limiting plate 6 is tightly attached to the outer side wall of the universal wheel 3. The bottom end of the limiting plate 6 is closely fitted with the ground, a fixing block 7 is fixedly installed on the outer wall of one of the brackets 5, a screw 8 is screwed on one end of the fixing block 7, a fixing seat 10 is fixedly installed on the outer wall of the other bracket 5, a slide plate 9 is rotatably installed on the other end of the screw 8, and a slide groove 11 is provided at one end of the fixing seat 10, and the slide groove 11 is slidably connected with the slide plate 9; the bottom end of the support platform 1 is connected with the outer wall of the support column 2 through a power mechanism, and the caravan lifting support device drives the slide plate 9 to slide inside the slide groove 11 provided on the fixing seat 10 while rotating the screw 8, so that the brackets 5 at the top of the two limiting plates 6 rotate around the rotating shaft 4, and the outer wall of the two limiting plates 6 is fitted with the outer wall of the universal wheel 3, so as to effectively limit the outer wall of the universal wheel 3, so as to prevent the universal wheel 3 from moving when the device is supported by the support column 2, and to prevent the device from moving easily during parking, so as to improve the stability of the device in the relatively static process, and improve the practicality.

[0031] In summary, when the caravan lifting support device is in use, the cylinder 12 is started, and power is output through the bottom end of the cylinder 12, and then the support column 2 is rotated under the limit of the limit shaft 18 and the guard plate 19 through the transmission of the connecting plate 13, the first connecting member 14, the rotating plate 15 and the second connecting member 16, so that the universal wheel 3 at the bottom end of the support column 2 is in contact with the ground, and the rotation angle of the support column 2 is limited by the limiting seat 20. While rotating the screw rod 8, since the screw rod 8 and the fixing block 7 are screwed together, the screw rod 8 drives the slide plate 9 to slide inside the slide groove 11 opened on the fixing seat 10, so that the bracket 5 on the two limiting plates 6 is rotated around the rotating shaft 4, so that the outer wall of the limiting plate 6 is closely fitted with the outer wall of the universal wheel 3, and the limiting operation of the universal wheel 3 is completed.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting support device for a motorhome, comprising a support platform (1), characterized in that: The bottom end of the support platform (1) is rotatably mounted with a support column (2) via a rotating mechanism, the bottom end of the support column (2) is rotatably mounted with a universal wheel (3), and two fixing mechanisms are symmetrically arranged on the outer side wall of the universal wheel (3); The fixing mechanism comprises a limit plate (6), two brackets (5) are symmetrically rotatably mounted on the outer wall of the support column (2) through a rotating shaft (4), the top of the limit plate (6) is fixedly connected to the bottom end of each bracket (5), the outer wall of the limit plate (6) is tightly fitted with the outer wall of the universal wheel (3), and the bottom end of the limit plate (6) is tightly fitted with the ground, a fixing block (7) is fixedly mounted on the outer wall of one of the brackets (5), a screw (8) is screwed on one end of the fixing block (7), a fixing seat (10) is fixedly mounted on the outer wall of the other bracket (5), a slide plate (9) is rotatably mounted on the other end of the screw (8), a slide groove (11) is provided at one end of the fixing seat (10), and the slide groove (11) is slidably connected to the slide plate (9); The bottom end of the support platform (1) is connected to the outer side wall of the support column (2) via a power mechanism.

2. A lifting support device for a motorhome according to claim 1, characterized in that: The power mechanism comprises a cylinder (12), the cylinder (12) is fixedly mounted on the top of the support platform (1), a connecting plate (13) is fixedly mounted on the output end of the cylinder (12), a rotating plate (15) is rotatably mounted on the bottom end of the connecting plate (13) via a first connecting member (14), and the other end of the rotating plate (15) is rotatably connected to the outer side wall of the support column (2) via a second connecting member (16).

3. A lifting support device for a motorhome according to claim 2, characterized in that: A protective cover (17) is fixedly mounted on the top of the support platform (1), and the top area of ​​the cylinder (12) is located inside the protective cover (17).

4. A lifting support device for a motorhome according to claim 3, characterized in that: The rotating mechanism comprises a limiting shaft (18), which is rotatably mounted on the top area of ​​the support column (2), and two guard plates (19) are symmetrically fixedly mounted on the bottom end of the support platform (1), and the limiting shaft (18) is rotatably connected to the two guard plates (19).

5. A lifting support device for a motorhome according to claim 4, characterized in that: A limiting seat (20) is fixedly mounted on the bottom end of the support platform (1), and one end of the limiting seat (20) is tightly fitted to the outer side wall of the support column (2).

6. A lifting support device for a motorhome according to claim 5, characterized in that: The bottom end of each of the limiting plates (6) is provided with an anti-slip strip (21).

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