Rain shed with automatic folding and unfolding structure for semitrailer

Abstract

The utility model is suitable for the technical field of automobile equipment, and provides a semitrailer canopy with an automatic folding and unfolding structure, the semitrailer canopy comprises two L-shaped support frames, a plurality of sliding seats are sleeved on the two L-shaped support frames close to the longer sides of the L-shaped structures, and two multi-stage hydraulic rods are controlled to extend outwards or contract inwards, so that the two L-shaped support frames can be folded and unfolded. The awning cloth can be driven to be unfolded outwards or folded inwards, the effect of automatically folding and unfolding the awning cloth is achieved, folding and unfolding work of the awning cloth is convenient, the labor intensity of a driver is relieved, actual use is facilitated, the threaded rod is pulled out of the adjusting rod on the front side, the adjusting rod on the rear side can be driven to move backwards, and the adjusting rod on the rear side can be pulled out of the adjusting rod on the front side. And the distance between the two adjusting rods can be further adjusted, the effect of adjusting the width of the canopy is achieved, installation personnel can conveniently and rapidly weld the canopy to semitrailers of different sizes for use, and the practicability of the canopy is improved to a certain degree.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile equipment, and in particular relates to a semi-trailer canopy with an automatic retractable structure. Background Art

[0002] A semi-trailer is a trailer with an axle placed behind the center of gravity of the vehicle and equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. Semi-trailers are generally three-axle semi-trailers, and are divided into many types such as eleven-meter warehouse semi-trailers, thirteen-meter warehouse semi-trailers, low-bed semi-trailers, etc. It is a heavy-duty transport vehicle connected to the semi-trailer head through a towing pin. During the transportation of the semi-trailer, a rainproof awning needs to be built on the outer layer of the cargo on the top of the car body to prevent the cargo from getting damp or falling off during transportation due to rain.

[0003] Traditional semi-trailer awnings cannot automatically retract and extend the tarpaulin, which makes it inconvenient to retract and extend the tarpaulin, increases the driver's labor intensity, and is not conducive to practical use. In addition, the width of traditional semi-trailer awnings is fixed and cannot be adjusted, so it cannot be quickly welded to semi-trailers of different sizes for use, and its practicality is poor. Utility Model Content

[0004] The utility model provides a semi-trailer awning with an automatic retractable structure, aiming to solve the problem that the existing semi-trailer awning cannot automatically retract or extend the tarpaulin and the width is fixed and cannot be adjusted.

[0005] The utility model is achieved as follows: a semi-trailer awning with an automatic retractable structure comprises two L-shaped support frames, a plurality of slides are sleeved on the two L-shaped support frames near the longer side of the L-shaped structure, and the spacing between the two adjacent slides is the same, the tops of the two slides located on the front and rear sides are connected to support plates near the center, and the tops of the two support plates located on the front and rear sides are jointly provided with a tarpaulin, a plurality of first fixing screw holes are opened on the tarpaulin near the front and rear sides, and an adjustment component is provided at the bottom of the tarpaulin near the right side; the adjustment component comprises two adjustment rods located on the right side of the bottom of the tarpaulin, the two adjustment rods are symmetrically arranged front and back with the center of the inner cavity of the tarpaulin as the axis of symmetry, and the two adjustment rods are connected to the top of the adjacent support plate near the center of the inner cavity of the tarpaulin on the side away from the center of the inner cavity of the tarpaulin.

[0006] Preferably, a cavity is provided in the inner cavity of the adjusting rod located on the front side near the center of the rear end, a threaded rod is provided in the inner cavity of the cavity near the center of the rear side, a circular hole is provided in the rear end of the adjusting rod located on the front side near the center, the circular hole and the cavity are communicated, the rear end of the threaded rod passes through the inner cavity of the circular hole and is connected to the front end of the adjusting rod on the rear side near the center, a handle is provided on the threaded rod near the rear end, and the front side of the handle is movably connected to the rear end of the adjacent adjusting rod near the center, a driving hole is provided in the inner cavity of the handle near the center, and the inner wall of the driving hole is provided with a thread matching the threaded rod.

[0007] Preferably, the front end of the threaded rod is connected to a limit plate, the front side of the limit plate is connected to a limit spring near the center, and the front end of the limit spring is connected to the front inner wall of the cavity near the center.

[0008] Preferably, the two slides on the right side are connected to a driving plate at the center of the side away from the center of the inner cavity of the tarpaulin, and a multi-stage hydraulic rod is provided on the left side of the two driving plates, and the right ends of the two multi-stage hydraulic rods are respectively connected to the center of the left side of the adjacent driving plate away from the center of the inner cavity of the tarpaulin, and the left ends of the two multi-stage hydraulic rods are connected to a fixing plate, and the adjacent sides of the two fixing plates are respectively connected to the adjacent L-shaped support frame away from the center of the inner cavity of the tarpaulin near the bottom of the left side.

[0009] Preferably, the two L-shaped support frames are symmetrically arranged front to back with the center of the tarpaulin cavity as the axis of symmetry, and second fixing screw holes matching the first fixing screw holes are provided near the center of the tops of the two L-shaped support frames and near the center of the tops of several support plates.

[0010] Preferably, the right sides of the two L-shaped support frames are connected to baffles, the bottoms of the two baffles are connected to welding rods 1 near the center, the left sides of the two welding rods 1 are provided with welding rods 2, the heights of the two welding rods 2 are higher than the height of welding rod 1, and the top ends of the two welding rods 2 are respectively connected to the bottoms of the adjacent L-shaped support frames near the center of the left side.

[0011] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0012] By controlling the two multi-stage hydraulic rods to extend outward or retract inward, the tarpaulin can be driven to expand outward or retract inward, thereby achieving the effect of automatically retracting and extending the tarpaulin, making the retrieval and extension of the tarpaulin more convenient, reducing the driver's labor intensity, and facilitating practical use. By pulling the threaded rod out from the front adjusting rod, the rear adjusting rod can be driven to move backward, and then the distance between the two adjusting rods can be adjusted, thereby achieving the effect of adjusting the width of the awning, which is beneficial for installers to quickly weld it on semi-trailers of different sizes for use, thereby improving the practicality of the awning to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a partial right-side structural diagram of some components of the present invention;

[0016] Figure 4 It is a partial three-dimensional structural diagram of the front side component adjusting rod of the utility model.

[0017] In the figure: 1. L-shaped support frame; 2. Tarpaulin; 3. Adjustment assembly; 31. Adjustment rod; 32. Handle; 33. Threaded rod; 34. Limit plate; 35. Limit spring; 4. Support plate; 5. Slide; 6. Baffle; 7. Welding rod 1; 8. Drive plate; 9. Multi-stage hydraulic rod; 10. Welding rod 2; 11. Fixing plate. DETAILED DESCRIPTION

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0019] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] The present invention provides a semi-trailer canopy with an automatic retractable structure. Figure 1-4 As shown, it includes two L-shaped support frames 1, and a plurality of slides 5 are sleeved on the two L-shaped support frames 1 near the longer side of the L-shaped structure, and the spacing between two adjacent slides 5 is the same, and the tops of the two slides 5 located on the front and rear sides are connected to support plates 4 near the center, and the tops of the two support plates 4 located on the front and rear sides are jointly provided with a tarpaulin 2, and a plurality of first fixing screw holes are opened on the tarpaulin 2 near the front and rear sides, and an adjustment component 3 is provided at the bottom of the tarpaulin 2 near the right side; the adjustment component 3 includes two adjusting rods 31 located on the right side of the bottom of the tarpaulin 2, and the two adjusting rods 31 are symmetrically arranged front and back with the inner center of the tarpaulin 2 as the axis of symmetry, and the two adjusting rods 31 are connected to the top of the adjacent support plate 4 near the inner center of the tarpaulin 2 on the side away from the inner center of the tarpaulin 2.

[0021] It should be noted that, since the existing semi-trailer awnings cannot automatically retract and extend the tarpaulin, and the width is fixed and cannot be adjusted, in order to solve the problems that arise during the use of the existing semi-trailer awnings, this solution solves the problem that the existing semi-trailer awnings cannot automatically retract and extend the tarpaulin, and the width is fixed and cannot be adjusted, by using the components on both sides of the two L-shaped support frames 1 and adding an adjustment component 3 at the bottom of the tarpaulin 2.

[0022] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a cavity is provided in the inner cavity of the adjusting rod 31 located on the front side near the center of the rear end, and a threaded rod 33 is provided in the inner cavity of the cavity near the center of the rear side. A circular hole is provided near the center of the rear end of the adjusting rod 31 located on the front side, and the circular hole and the cavity are communicated. The rear end of the threaded rod 33 passes through the inner cavity of the circular hole and is connected to the front end of the adjusting rod 31 on the rear side near the center. A handle 32 is provided on the threaded rod 33 near the rear end, and the front side of the handle 32 is movably connected to the rear end of the adjacent adjusting rod 31 near the center. A driving hole is provided in the inner cavity of the handle 32 near the center, and the inner wall of the driving hole is provided with a thread matching the threaded rod 33.

[0023] In this embodiment, when the width of the awning needs to be adjusted, the installer rotates the handle 32 forward. Since the handle 32 is threadedly engaged with the threaded rod 33 through the drive hole, the threaded rod 33 can be pulled out from the cavity, so that the threaded rod 33 can push the rear adjustment rod 31 to move backward, and then the distance between the two adjustment rods 31 can be adjusted, thereby achieving the purpose of adjusting the width of the awning, which is convenient for the installer to quickly weld it on semi-trailers of different sizes for use, thereby improving the practicality of the awning to a certain extent.

[0024] In a further preferred embodiment of the present invention, Figure 3 As shown, the front end of the threaded rod 33 is connected to the limit plate 34, the front side of the limit plate 34 is connected to the limit spring 35 near the center, and the front end of the limit spring 35 is connected to the front inner wall of the cavity near the center.

[0025] In this embodiment, when the threaded rod 33 moves backward, it can drive the limit plate 34 to move backward. The limit plate 34 moves backward and pulls the limit spring 35 to extend outward, thereby limiting the position of the threaded rod 33 and allowing the threaded rod 33 to move smoothly.

[0026] In a further preferred embodiment of the present invention, Figure 1 As shown, the two slides 5 on the right side are connected to a driving plate 8 at the center of the side away from the center of the inner cavity of the tarpaulin 2, and a multi-stage hydraulic rod 9 is provided on the left side of the two driving plates 8, and the right ends of the two multi-stage hydraulic rods 9 are respectively connected to the center of the left side of the adjacent driving plate 8 away from the center of the inner cavity of the tarpaulin 2, and the left ends of the two multi-stage hydraulic rods 9 are respectively connected to a fixing plate 11, and the adjacent sides of the two fixing plates 11 are respectively connected to the adjacent L-shaped support frame 1 away from the center of the inner cavity of the tarpaulin 2 near the bottom of the left side.

[0027] In this embodiment, when the canopy is welded to a semi-trailer for use, when it rains, the driver activates the two multi-stage hydraulic rods 9 through an external power supply. The two multi-stage hydraulic rods 9 begin to extend outwards when powered, thereby driving the two drive plates 8 to move to the right. When the two drive plates 8 move to the right, they can drive the two slides 5 on the right side to slide to the right on the L-shaped support frame 1, so that the two slides 5 on the right side can jointly drive the tarpaulin 2 to unfold to the right through the two adjacent support plates 4. When the tarpaulin 2 is unfolded to the right, it can pass through several support plates on the left side. 4 drives several adjacent slides 5 to slide rightward on the two L-shaped support frames 1, thereby limiting the position of the tarpaulin 2, so that the tarpaulin 2 can be smoothly unfolded to keep out the rain. When the rain stops and the tarpaulin 2 needs to be retracted, the driver again starts the two multi-stage hydraulic rods 9 through the external power supply. The two multi-stage hydraulic rods 9 begin to retract inward when powered, so as to realize the retraction of the tarpaulin 2, thereby achieving the purpose of automatically retracting and unfolding the tarpaulin 2, making the folding and unfolding of the tarpaulin 2 more convenient, reducing the driver's labor intensity, and facilitating practical use.

[0028] In a further preferred embodiment of the present invention, Figure 1 As shown, the two L-shaped support frames 1 are symmetrically arranged front to back with the inner center of the tarpaulin 2 as the axis of symmetry, and second fixing screw holes matching the first fixing screw holes are provided near the center of the tops of the two L-shaped support frames 1 and near the center of the tops of the several support plates 4.

[0029] In this embodiment, by screwing the bolts into the adjacent first and second fixing screw holes, the tarpaulin 2 can be assembled with the two L-shaped support frames 1 and several support plates 4 for use. At the same time, the width of the tarpaulin 2 between the two adjacent support plates 4 is the same, so that the several support plates 4 can be retracted at equal distances.

[0030] In a further preferred embodiment of the present invention, Figure 1 As shown, the right side of the two L-shaped support frames 1 are connected to a baffle 6, and the bottom of the two baffles 6 near the center is connected to a welding rod 7, and the left side of the two welding rods 17 is provided with a welding rod 2 10. The height of the two welding rods 2 10 is higher than the height of the welding rod 1 7, and the top ends of the two welding rods 2 10 are respectively connected to the bottom of the adjacent L-shaped support frame 1 near the center of the left side.

[0031] In this embodiment, two baffles 6 are connected to the right side of the two L-shaped support frames 1, so that the positions of the two slides 5 on the right side can be limited to avoid the overload of the two slides 5 on the right side. At the same time, the canopy can be welded to the semi-trailer for use through two welding rods 1 7 and two welding rods 2 10.

[0032] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0033] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0034] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A semi-trailer canopy with an automatic retractable structure, characterized in that: The invention comprises two L-shaped support frames (1), wherein a plurality of slide seats (5) are sleeved on the two L-shaped support frames (1) near the longer side of the L-shaped structure, and the spacing between two adjacent slide seats (5) is the same, the tops of the two slide seats (5) located on the front and rear sides are connected to support plates (4) near the center, and the tops of the two support plates (4) located on the front and rear sides are jointly provided with a tarpaulin (2), the tarpaulin (2) is provided with a plurality of first fixing screw holes near the front and rear sides, and the bottom of the tarpaulin (2) is provided with an adjustment component (3) near the right side; The adjustment assembly (3) comprises two adjustment rods (31) located on the right side of the bottom of the tarpaulin (2), the two adjustment rods (31) being symmetrically arranged front to back with the center of the inner cavity of the tarpaulin (2) as the axis of symmetry, and the two adjustment rods (31) are respectively connected to the top of the adjacent support plate (4) close to the center of the inner cavity of the tarpaulin (2) on the side away from the center of the inner cavity of the tarpaulin (2).

2. The semi-trailer canopy with an automatic retractable structure according to claim 1, characterized in that: The adjusting rod (31) located at the front side has a cavity near the center of the rear end, and a threaded rod (33) is provided in the cavity near the center of the rear end. The adjusting rod (31) located at the front side has a circular hole near the center of the rear end, and the circular hole and the cavity are connected. The rear end of the threaded rod (33) passes through the circular hole cavity and is connected to the front end of the adjusting rod (31) at the rear side near the center. A handle (32) is sleeved on the threaded rod (33) near the rear end, and the front side of the handle (32) is movably connected to the rear end of the adjacent adjusting rod (31) near the center. A driving hole is provided in the cavity of the handle (32) near the center, and the inner wall of the driving hole is provided with a thread matching the threaded rod (33).

3. The semi-trailer canopy with an automatic retractable structure as claimed in claim 2, characterized in that: The front end of the threaded rod (33) is connected to a limiting plate (34), the front side of the limiting plate (34) is connected to a limiting spring (35) near the center, and the front end of the limiting spring (35) is connected to the inner wall of the front side of the cavity near the center.

4. The semi-trailer canopy with an automatic retractable structure according to claim 1, characterized in that: The two slides (5) on the right side are connected to a driving plate (8) at the center of the side away from the center of the inner cavity of the tarpaulin (2), and the left sides of the two driving plates (8) are provided with a multi-stage hydraulic rod (9), and the right ends of the two multi-stage hydraulic rods (9) are respectively connected to the center of the left side of the adjacent driving plate (8) away from the center of the inner cavity of the tarpaulin (2), and the left ends of the two multi-stage hydraulic rods (9) are connected to a fixing plate (11), and the adjacent sides of the two fixing plates (11) are respectively connected to the side of the adjacent L-shaped support frame (1) away from the center of the inner cavity of the tarpaulin (2) near the left bottom.

5. The semi-trailer canopy with an automatic retractable structure according to claim 1, characterized in that: The two L-shaped support frames (1) are symmetrically arranged front to back with the center of the inner cavity of the tarpaulin (2) as the symmetry axis, and second fixing screw holes matching the first fixing screw holes are provided near the center of the tops of the two L-shaped support frames (1) and near the center of the tops of the plurality of support plates (4).

6. The semi-trailer canopy with an automatic retractable structure according to claim 1, characterized in that: The right sides of the two L-shaped support frames (1) are connected to baffles (6), the bottoms of the two baffles (6) are connected to welding rods (7) near the center, the left sides of the two welding rods (7) are provided with welding rods (10), the heights of the two welding rods (10) are higher than the height of the welding rod (7), and the top ends of the two welding rods (10) are respectively connected to the bottoms of the adjacent L-shaped support frames (1) near the center of the left side.

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