Automatic stretching type dust cover

Abstract

The utility model discloses an automatic stretching type dust cover, which belongs to the technical field of dust covers, and comprises a cover body, the top end of the cover body is in a hollow-out state, the edge of the top end of the cover body is hinged with a driving unfolding ceiling which is oppositely arranged, one end of the driving unfolding ceiling is hinged with a driven folding and unfolding ceiling, and the inner wall of the cover body is provided with a hinge seat; a jacking air cylinder used for driving the active unfolding ceiling to conduct unfolding action is installed on the hinge seat, and a transmission assembly is arranged between the cover body and the active unfolding ceiling. The jacking air cylinder, the transmission assembly, the driving unfolding ceiling and the driven folding and unfolding ceiling are arranged, the jacking air cylinder is used for jacking the driving unfolding ceiling to rotate, under the cooperation of the transmission assembly, the driven folding and unfolding ceiling automatically turns over to be close to the driving unfolding ceiling, and the folding and storage function is achieved; the space occupancy rate after the dustproof cover is unfolded is reduced, meanwhile, opening of the dustproof cover can be accelerated, and the opening efficiency of the dustproof cover is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust cover, in particular to an automatically extending dust cover. Background Art

[0002] During the maintenance of the locomotive, the train needs to be moved to a work area equipped with professional equipment for maintenance. When the maintenance is completed, a dust cover needs to be used to protect the machine to prevent dust from accumulating in the work area. Before the maintenance begins, the dust cover needs to be opened and the locomotive needs to be driven into the maintenance area.

[0003] After the existing dust cover is opened, it cannot be folded, so the unfolded dust cover occupies a large space, which greatly reduces the space utilization rate of the maintenance workshop. In addition, since the existing dust cover cannot be folded, the front of the vehicle can only enter the inside of the dust cover after the dust cover is unfolded to a sufficient angle, which reduces the opening efficiency of the dust cover. Therefore, an automatically extending dust cover is proposed to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the problem that the existing dust cover in the prior art cannot be folded, occupies a large factory space after being unfolded, reduces the utilization rate of the factory space, and causes low efficiency in unfolding the dust cover, and proposes an automatically extendable dust cover.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatically extendable dust cover comprises a cover body, the top of the cover body is hollowed out, an actively deployable canopy is hinged at the top edge of the cover body, a passive retractable canopy is hinged at one end of the actively deployable canopy, an articulated seat is installed on the inner wall of the cover body, a lifting cylinder for driving the actively deployable canopy to deploy is installed on the articulated seat, one end of the output end of the lifting cylinder is hinged to the inner wall of the actively deployable canopy, a transmission assembly is arranged between the cover body and the actively deployable canopy, and an extension cover is arranged on one side of the cover body.

[0007] Preferably, one side of the cover body is provided with an entry door for convenient entry and exit of staff.

[0008] Preferably, the transmission assembly includes a mounting seat fixed on the outer side wall of the cover body, a transmission rod hinged to the top end of the mounting seat, and a triangular adapter hinged to one end of the transmission rod.

[0009] Preferably, one end of the triangular adapter is rotatably connected to an arcuate push-pull rod, one end of the arcuate push-pull rod is rotatably connected to the driven retractable canopy via an adapter block, one end of the triangular adapter is rotatably connected to a fixed block, and the fixed block is fixedly connected to the active deployable canopy.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] By providing a lifting cylinder, a transmission assembly, a main expanding awning, and a driven retractable awning, the present utility model uses the lifting cylinder to lift the main expanding awning to make it rotate. With the cooperation of the transmission assembly, the driven retractable awning automatically flips close to the main expanding awning, realizing the folding and storage function, reducing the space occupancy rate after the dust cover is expanded. At the same time, during the expansion process of the main expanding awning, the driven retractable awning is automatically stored, which can accelerate the opening of the dust cover and improve the opening efficiency of the dust cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic three-dimensional structure diagram of an automatic stretching type dust cover proposed by the present utility model Figure 1 ;

[0013] Figure 2 is Figure 1 the enlarged structural schematic diagram at position A in

[0014] Figure 3 is a schematic three-dimensional structure diagram of an automatic stretching type dust cover proposed by the present utility model Figure 2 ;

[0015] Figure 4 is a schematic three-dimensional structure diagram of an automatic stretching type dust cover proposed by the present utility model Figure 3 ;

[0016] Figure 5 is the structural schematic diagram of the transmission assembly in an automatic stretching type dust cover proposed by the present utility model.

[0017] In the figure: 1, cover body; 2, main expanding awning; 3, driven retractable awning; 4, extension cover; 5, lifting cylinder; 6, access door; 7, mounting seat; 8, transmission rod; 9, triangular adapter; 10, arc push-pull rod; 11, fixed block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Refer to Figures 1-5, An automatic stretching dust cover, including a cover body 1. The top end of the cover body 1 is in a hollow state. At the edge of the top end of the cover body 1, there are relatively arranged active unfolding canopies 2 hinged. One end of the active unfolding canopy 2 is hinged with a driven unfolding and retracting canopy 3. An articulated seat is installed on the inner wall of the cover body 1, and a lifting cylinder 5 for driving the active unfolding canopy 2 to perform an unfolding action is installed on the articulated seat. One end of the output end of the lifting cylinder 5 is hinged with the inner wall of the active unfolding canopy 2;

[0020] It should be noted that: the output end of the lifting cylinder 5 can push or pull the active unfolding canopy 2 to rotate and unfold, thereby controlling the opening and closing of the dust cover;

[0021] A transmission component is arranged between the cover body 1 and the active unfolding canopy 2. An extension cover 4 is arranged on one side of the cover body 1. The transmission component includes a mounting seat 7 fixed on the outer side wall of the cover body 1, a transmission rod 8 hinged at the top end of the mounting seat 7, and a triangular adapter 9 hinged at one end of the transmission rod 8. One end of the triangular adapter 9 is rotatably connected with an arc-shaped push rod 10. One end of the arc-shaped push rod 10 is rotatably connected with the driven unfolding and retracting canopy 3 through an adapter block. One end of the triangular adapter 9 is rotatably connected with a fixed block 11, and the fixed block 11 is fixedly connected with the active unfolding canopy 2.

[0022] It should be noted that: when the active unfolding canopy 2 rotates, it will drive the triangular adapter 9 to make a circular motion through the fixed block 11. The triangular adapter 9 drives one end of the transmission rod 8 to make a circular motion. Since the hinge points of the active unfolding canopy 2 and the transmission rod 8 are different (the hinge point of the transmission rod 8 is farther), the circular trajectory of the end of the transmission rod 8 connected to the triangular adapter 9 is different from that of the fixed block 11. Therefore, the transmission rod 8 will push the triangular adapter 9 to rotate. The triangular adapter 9 will push the driven unfolding and retracting canopy 3 to rotate and move closer to the active unfolding canopy 2 through the arc-shaped push rod 10, enabling the driven unfolding and retracting canopy 3 to achieve an automatic storage function, which can accelerate the opening of the dust cover and improve the opening efficiency of the dust cover.

[0023] An access door 6 for facilitating the entry and exit of staff is arranged on one side of the cover body 1.

[0024] When the utility model is in use, the lifting cylinder 5 is activated. The lifting cylinder 5 can lift and rotate the active unfolding awning 2. During the rotation process, the two sides of the active unfolding awning 2 move away from each other, causing the dust cover to open. During the rotation process, the active unfolding awning 2 drives the triangular adapter 9 to perform a circular motion through the fixed block 11. The triangular adapter 9 drives one end of the transmission rod 8 to perform a circular motion. Since the hinge points of the active unfolding awning 2 and the transmission rod 8 are different (the hinge point of the transmission rod 8 is farther), the circular trajectory of the end of the transmission rod 8 connected to the triangular adapter 9 is different from that of the fixed block 11. Therefore, the transmission rod 8 will push the triangular adapter 9 to rotate. The triangular adapter 9 will push the driven unfolding and retracting awning 3 to rotate and move closer to the active unfolding awning 2 through the arc-shaped push rod 10, enabling the driven unfolding and retracting awning 3 to achieve the automatic storage function, reducing the space occupancy rate after the dust cover is unfolded, and at the same time accelerating the opening of the dust cover and improving the opening efficiency of the dust cover.

[0025] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the utility model.

Claims

1. An automatically extendable dust cover, comprising a cover body (1), characterized in that: The top of the cover body (1) is in a hollow state, and an actively deployable canopy (2) is hingedly arranged at the top edge of the cover body (1), and a driven retractable canopy (3) is hingedly arranged at one end of the actively deployable canopy (2). An articulated seat is installed on the inner wall of the cover body (1), and a lifting cylinder (5) is installed on the articulated seat for driving the actively deployable canopy (2) to deploy. One end of the output end of the lifting cylinder (5) is hingedly connected to the inner wall of the actively deployable canopy (2). A transmission assembly is arranged between the cover body (1) and the actively deployable canopy (2), and an extension cover (4) is arranged on one side of the cover body (1).

2. The automatic extending dust cover according to claim 1, characterized in that: One side of the cover body (1) is provided with an entry and exit door (6) for convenient entry and exit of staff.

3. The automatic extending dust cover according to claim 1, characterized in that: The transmission assembly comprises a mounting seat (7) fixed on the outer side wall of the cover body (1), a transmission rod (8) hinged on the top end of the mounting seat (7), and a triangular adapter (9) hinged on one end of the transmission rod (8).

4. The automatic extending dust cover according to claim 3, characterized in that: One end of the triangular adapter (9) is rotatably connected to an arc-shaped push-pull rod (10), one end of the arc-shaped push-pull rod (10) is rotatably connected to the driven retractable canopy (3) via an adapter block, one end of the triangular adapter (9) is rotatably connected to a fixed block (11), and the fixed block (11) is fixedly connected to the active deployable canopy (2).

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