Self-cleaning jacking mechanism

Abstract

The utility model provides a self-cleaning jacking mechanism which comprises a lower guide rail, an upper guide rail, a shear fork lifting mechanism arranged between the lower guide rail and the upper guide rail and a power piece used for driving the shear fork lifting mechanism to ascend and descend, and the shear fork lifting mechanism comprises a first connecting rod and a second connecting rod. The upper end of the first connecting rod is hinged to the upper guide rail, and the lower end of the first connecting rod and the lower guide rail are arranged in a relatively horizontal sliding mode. The upper end of the second connecting rod and the upper guide rail are arranged in a relatively horizontal sliding mode, the lower end of the second connecting rod is hinged to the lower guide rail, a self-cleaning mechanism is further arranged at the lower end of the first connecting rod, and the self-cleaning mechanism reciprocates along with the lower end of the first connecting rod so as to automatically clean the lower guide rail.

Description

Technical Field

[0001] The utility model relates to the technical field of flat roof lifting, in particular to a self-cleaning lifting mechanism. Background Art

[0002] With the improvement of people's living standards and the pursuit of freedom of travel, RV travel has become increasingly popular in recent years. RVs also face some problems during use, one of which is the height limit of RVs. RV flat roof lifting devices effectively solve this problem.

[0003] A Chinese utility model, publication number CN219056093U, discloses a power-assisted electric RV roof-lifting mechanism, comprising a push rod assembly and a lifting bracket; the push rod assembly is connected to the lifting bracket; the lifting bracket comprises upper and lower guide rails, with an X-shaped scissor-type lifting bracket disposed between the upper and lower guide rails; the push rod assembly comprises a gas spring assembly, which is disposed on the X-shaped scissor-type lifting bracket. This utility model utilizes the gas spring assembly and an electric push rod to push the X-shaped scissor-type lifting bracket, utilizing the gas spring power and the thrust of the electric push rod to electrically lift the roof. This scissor-type bracket layout effectively reduces the width of the electrically powered lifting portion, allowing the roof to be lifted to a certain weight while overcoming the dead point of the lifting. Furthermore, functions such as anti-pinch and leveling can be achieved through circuit control of the push rod.

[0004] However, this technical solution has the following problems: since RVs are used outdoors, it is inevitable that fallen leaves, dust and other dirt will fall into the lower guide rail during the lifting process of the roof mechanism, affecting the movement of the guide wheel in the lower guide rail. In severe cases, jamming may occur. These dirt need to be cleaned manually, and if forgotten to clean, it may cause corrosion of the mechanism. Summary of the Invention

[0005] The purpose of this utility model is to address the deficiencies of the existing technology and provide a self-cleaning lifting mechanism. By arranging a self-cleaning mechanism at the lower movable end of the scissors lifting mechanism, the technical problem that malfunctions occur in the existing solution due to the lower guide rail being exposed to outdoor deposited dirt, thereby affecting its normal use, is solved.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a self-cleaning lifting mechanism, comprising a lower guide rail, an upper guide rail, a scissors-type lifting mechanism arranged between the lower guide rail and the upper guide rail, and a power part for driving the lifting action of the scissors-type lifting mechanism, the scissors-type lifting mechanism comprising a first connecting rod and a second connecting rod, the upper end of the first connecting rod being hinged to the upper guide rail, and the lower end thereof being arranged to slide relative to the lower guide rail horizontally; the upper end of the second connecting rod being arranged to slide relative to the upper guide rail, and the lower end thereof being hinged to the lower guide rail, the lower end of the first connecting rod being further provided with a self-cleaning mechanism, the self-cleaning mechanism following the reciprocating movement of the lower end of the first connecting rod to automatically clean the lower guide rail.

[0007] Preferably, the self-cleaning mechanism includes a mounting seat, which is mounted on the lower end of the first connecting rod; and a cleaning member, which is mounted on the mounting seat and at least the lower end of which is in contact with the bottom of the lower guide rail.

[0008] As a preference, a plurality of staggered first reinforcing ribs are provided inside the mounting seat, and a plurality of grooves are provided between the first reinforcing ribs.

[0009] As a preference, the mounting seat is tilted at one end on the side facing the mounting surface, and a notch is further provided on the same side of the mounting seat.

[0010] As a preference, the cleaning member is provided with a plurality of mounting holes, and the mounting holes are penetrated by expansion slots.

[0011] As a preference, a second reinforcing rib is further provided in the middle of the cleaning member, and the second reinforcing rib is parallel to the long side direction of the cleaning member.

[0012] As a preference, the cleaning member is a push plate or a brush structure.

[0013] As a preference, the cleaning member is a push plate, the bottom of the cleaning member is conical, and the thickness of the bottom is smaller than the thickness of the upper portion.

[0014] As a preference, the cleaning piece is made of a flexible material.

[0015] The beneficial effects of the present invention are:

[0016] (1) The utility model provides a self-cleaning mechanism at the connection between the movable end of the scissor lift mechanism and the lower guide rail. As the scissor lift mechanism operates, the self-cleaning mechanism is driven to clean the dirt on the lower guide rail. The utility model has a high degree of automation, avoids frequent manual cleaning, and saves labor energy.

[0017] (2) The present invention provides a plurality of staggered first reinforcing ribs inside the mounting base, and a plurality of grooves are provided between the first reinforcing ribs, thereby ensuring the strength of the mounting base, reducing the weight of the mounting base, saving materials required for production, and reducing costs.

[0018] (3) The utility model has a simple structure and is easy to replace and install by arranging a detachable cleaning part on the mounting seat. The cleaning part is made of a flexible material, which is more conducive to cleaning the lower guide groove more thoroughly and can also avoid causing damage or missing stains.

[0019] (4) The present invention provides an expansion slot through the mounting hole of the cleaning member. When the bolt is tightened, the expansion slot is used to release the deformation of the cleaning member to avoid damage during tightening. A second reinforcing rib is provided in the middle of the cleaning member to further enhance the strength of the cleaning member, increase its service life, and save economic costs.

[0020] In summary, the utility model has the advantages of high degree of automation, high cleaning efficiency, low cost and high strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 It is a partial cross-sectional view of the utility model;

[0024] Figure 4 It is a partial view of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the mounting seat of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the cleaning element of the utility model;

[0027] Figure 7 This is a schematic diagram of the working of the utility model Figure 1 ;

[0028] Figure 8 This is a schematic diagram of the working of the utility model Figure 2 .

[0029] The accompanying drawings are marked with: 1. Lower guide rail; 2. Upper guide rail; 3. Scissors lifting mechanism; 31. First connecting rod; 32. Second connecting rod; 4. Wheel axle; 41. Guide wheel; 5. Self-cleaning mechanism; 51. Mounting seat; 511. First reinforcing rib; 512. Groove; 513. Mounting surface; 514. Notch; 52. Cleaning part; 521. Mounting hole; 522. Expansion slot; 523. Second reinforcing rib; 6. Power part; 7. Gas spring assembly. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0032] Example 1

[0033] like Figures 1 to 8As shown, this embodiment provides a self-cleaning lifting mechanism, including a lower guide rail 1, an upper guide rail 2, a scissors-type lifting mechanism 3 arranged between the lower guide rail 1 and the upper guide rail 2, and a power part 6 for driving the scissors-type lifting mechanism 3 to lift and lower. The scissors-type lifting mechanism 3 includes a first connecting rod 31 and a second connecting rod 32. The upper end of the first connecting rod 31 is hinged to the upper guide rail 2, and the lower end thereof is arranged to slide horizontally relative to the lower guide rail 1; the upper end of the second connecting rod 32 is arranged to slide horizontally relative to the upper guide rail 2, and the lower end thereof is hinged to the lower guide rail 1. A self-cleaning mechanism 5 is also provided on the lower end of the first connecting rod 31, and the self-cleaning mechanism 5 moves back and forth following the lower end of the first connecting rod 31 to automatically clean the lower guide rail 1.

[0034] It should be noted here that the first connecting rod 31 and the second connecting rod 32 are cross-rotatably connected, and the rotation connection point is located at the midpoint of the first connecting rod 31 and the second connecting rod 32; the lower end of the first connecting rod 31 and the upper end of the second connecting rod 32 are provided with a wheel axle 4, and guide wheels 41 are sleeved on both sides of the wheel axle 4. The driving end of the power member 6 abuts the first connecting rod 31, and the fixed end of the power member is hinged to the second connecting rod 32. The guide wheel 41 drives the first connecting rod 31 and the second connecting rod 32 to move up and down with the power member 6 and move back and forth on the lower guide rail 1 and the upper guide rail 2.

[0035] It should be further explained here that a gas spring assembly 7 is also provided to provide additional buffering and protection for the lifting process. When the power part 6 pushes the first connecting rod 31 to rise, the gas spring assembly 7 can provide a certain amount of assistance, reduce the load of the power part 6, and extend its service life. The coordinated use of the power part 6 and the gas spring assembly 7 can flexibly adjust the lifting speed and force according to actual needs to meet the use requirements under different working conditions.

[0036] like Figure 2 、 4 As shown, the self-cleaning mechanism 5 includes a mounting seat 51, which is mounted on the lower end of the first connecting rod 31; and a cleaning member 52, which is mounted on the mounting seat 51, and at least its lower end is in contact with the bottom of the lower guide rail 1.

[0037] It is worth mentioning here that the cleaning member 52 will inevitably wear out during long-term use. The cleaning member 52 fixed to the mounting seat 51 by bolts can be quickly disassembled and replaced with a new cleaning member, which is simple and convenient; the bottom of the mounting seat 51 always maintains contact and sliding on the lower track 1 to ensure that the self-cleaning mechanism 5 remains stable during reciprocating motion.

[0038] like Figure 5 As shown, a plurality of staggered first reinforcing ribs 511 are provided inside the mounting seat 51 , and a plurality of grooves 512 are provided between the first reinforcing ribs 511 .

[0039] It is worth mentioning that the first reinforcing rib 511 and the groove 512 are provided inside the mounting seat 51, which not only ensures the strength of the mounting seat, but also reduces the weight of the mounting seat and saves materials required for production.

[0040] like Figure 3 、 4 As shown, the mounting seat 51 is tilted at one end on the mounting surface side, and a notch 514 is further provided on the same side of the mounting seat 51 .

[0041] It is worth mentioning that the inclined end surface and the notch 514 can prevent the scissor lift mechanism 3 from contacting and rubbing with the surface of the mounting base 51 during movement, thereby preventing interference between the two.

[0042] Example 2

[0043] like Figure 2 、 6 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. The cleaning member 52 is provided with a plurality of mounting holes 521 , and the mounting holes 521 are penetrated by expansion slots 522 .

[0044] It is worth mentioning here that an expansion groove 522 is provided through the mounting hole 521 of the cleaning member 52. When the bolt is tightened, the expansion groove 522 releases the deformation of the cleaning member 52 to avoid damage to the cleaning member 52 when the bolt is tightened.

[0045] like Figure 2 、 6 As shown, a second reinforcing rib 523 is further provided in the middle of the cleaning member 52 , and the second reinforcing rib 523 is parallel to the long side direction of the cleaning member 52 .

[0046] It is worth mentioning here that a second reinforcing rib 523 is provided in the middle of the cleaning member 52 to further enhance the strength of the cleaning member 52 , increase the service life of the cleaning member 52 , and save economic costs.

[0047] like Figure 2 、 6 As shown, the cleaning member 52 is a push plate or a brush structure.

[0048] It should be noted that the cleaning member 52 is preferably a push plate, which can more easily clean solidified dirt such as dust.

[0049] like Figure 6 As shown, the cleaning member 52 is a push plate, the bottom of which is conical, and the thickness of the bottom is smaller than the thickness of the upper part.

[0050] It is worth mentioning here that the bottom is conical, which is conducive to cleaning various dirt in the lower guide rail 1, especially dirt such as mud attached to the lower guide rail 1, which can be scraped off more easily.

[0051] like Figure 2 、 6 As shown, the cleaning member 52 is made of a flexible material.

[0052] It is worth mentioning here that the flexible material can better conform to the cleaning surface without scratching the surface of the cleaned device.

[0053] Working steps

[0054] Turn on the switch, the power part 6 starts to drive the first connecting rod 31 to rotate, the RV roof rises, and the self-cleaning mechanism 5 moves toward the lower end of the second connecting rod 32. During use after the RV roof is raised, some dirt falls into the lower guide rail 1. When the RV roof needs to be closed, start the switch again, the power part 6 starts to drive the first connecting rod 31 to rotate in the opposite direction. At the same time, the self-cleaning mechanism 5 moves in the opposite direction of the lower end of the second connecting rod 32, and the cleaning part 52 is close to the lower track 1 to remove the attached dirt.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-cleaning lifting mechanism, comprising a lower guide rail, an upper guide rail, a scissor lift mechanism disposed between the lower guide rail and the upper guide rail, and a power member for driving the scissor lift mechanism to move upward and downward, the scissor lift mechanism comprising a first connecting rod and a second connecting rod, the upper end of the first connecting rod being hinged to the upper guide rail, and the lower end of the first connecting rod being arranged to slide horizontally relative to the lower guide rail; the upper end of the second connecting rod being arranged to slide horizontally relative to the upper guide rail, and the lower end of the second connecting rod being hinged to the lower guide rail, characterized in that: A self-cleaning mechanism is also provided on the lower end of the first connecting rod. The self-cleaning mechanism moves back and forth following the lower end of the first connecting rod to automatically clean the lower guide rail.

2. A self-cleaning lifting mechanism according to claim 1, characterized in that: The self-cleaning mechanism comprises: a mounting seat mounted on the lower end of the first connecting rod; and A cleaning member is installed on the installation seat, and at least the lower end of the cleaning member is in contact with the bottom of the lower guide rail.

3. A self-cleaning lifting mechanism according to claim 2, characterized in that: A plurality of staggered first reinforcing ribs are arranged inside the mounting seat, and a plurality of grooves are opened between the first reinforcing ribs.

4. A self-cleaning lifting mechanism according to claim 2, characterized in that: The mounting seat is arranged obliquely at one end facing the mounting surface, and a notch is further provided on the same side of the mounting seat.

5. The self-cleaning lifting mechanism according to claim 2, characterized in that: The cleaning piece is provided with a plurality of mounting holes, and the mounting holes are penetrated by expansion slots.

6. A self-cleaning lifting mechanism according to claim 2, characterized in that: A second first reinforcing rib is further provided in the middle of the cleaning member, and the second first reinforcing rib is parallel to the long side direction of the cleaning member.

7. The self-cleaning lifting mechanism according to claim 2, characterized in that: The cleaning member is a push plate or a brush structure.

8. The self-cleaning lifting mechanism according to claim 7, characterized in that: The cleaning member is a push plate, the bottom of which is conical, and the thickness of the bottom is smaller than the thickness of the upper portion.

9. The self-cleaning lifting mechanism according to claim 2, characterized in that: The cleaning piece is made of flexible material.

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