Liftable wharf windproof dust net

Abstract

The utility model relates to the field of wharf dust prevention, and discloses a liftable wharf wind and dust prevention net which comprises a bottom plate and a top plate, the bottom plate is in a concave shape, and the top plate is in an L shape. The top plates are located over the bottom plate, the two top plates are symmetrically arranged left and right and vertically correspond to the bottom plate, moving wheels are rotationally connected to the four corners of the bottom of the bottom plate, a push handle is fixedly connected to the rear side wall of the top of the bottom plate, and the top of the bottom plate and the bottoms of the top plates are fixedly connected with the upper end and the lower end of the organ dust cover respectively. Lifting devices are arranged between the left side and the right side of the top of the bottom plate and the left side and the right side of the bottom of the two top plates respectively and located on the inner side of the organ dustproof cover.

Description

Technical Field

[0001] This utility model relates to the field of dock dust control, specifically a liftable dock dust control net. Background Technology

[0002] When loading and unloading goods at the dock, wind and dust may be generated. Loading and unloading workers and loading and unloading machinery or goods need to be protected from dust. Once the wind blows and dust rises, it will affect the work and contaminate the goods or equipment. In actual use, workers at the dock usually spend a long time protecting the dock machinery or goods from dust, which is inefficient. Therefore, there is a lack of mechanical dust protection devices. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, this utility model provides a liftable dock dustproof net.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A liftable dock dustproof net includes a bottom plate and a top plate. The bottom plate is U-shaped, and the top plate is L-shaped. The top plate is located directly above the bottom plate. There are two top plates, which are symmetrically arranged on the left and right sides. The top plates correspond to the bottom plates vertically. Each of the four bottom corners of the bottom plate is rotatably connected to a movable wheel. A push handle is fixedly connected to the rear side wall of the top of the bottom plate. The top of the bottom plate and the bottom of the top plate are respectively fixedly connected to the upper and lower ends of a bellows dustproof cover. The bellows dustproof cover is U-shaped and extends vertically. Lifting devices are respectively installed between the left and right sides of the top of the bottom plate and the left and right sides of the bottom of the two top plates. The lifting devices are located inside the bellows dustproof cover.

[0006] The lifting device includes a support frame one and a support frame two, which are arranged in a crisscross pattern. The top of the base plate and the bottom of the top plate each have a slide groove one and a slide groove two, respectively. Both ends of support frame one and support frame two extend into slide groove one and slide groove two, respectively. Both support frame one and support frame two are frame-shaped, with support frame two located within support frame one. A central shaft rotatably connects support frame one and support frame two, passing through the middle of both support frame one and support frame two. The top of support frame one is rotatably connected to a fixed shaft one, and the bottom of support frame two... A fixed shaft is rotatably connected to the support frame. Fixed shaft 1 is fixed inside slide groove 2, and fixed shaft 2 is fixed inside slide groove 1. The top of support frame 1 and the bottom of support frame 2 are rotatably connected to movable shafts. Both ends of the upper and lower movable shafts are fixedly connected to pulleys. The upper and lower pulleys slide in cooperation with slide groove 2 and slide groove 1, respectively. Support shaft 1 is fixedly connected to the upper middle part of support frame 2. Support shaft 1 is rotatably connected to the end of the piston rod of the hydraulic cylinder. The bottom end of the cylinder of the hydraulic cylinder is rotatably connected to support shaft 2. Support shaft 2 is fixedly connected to the bottom of support frame 1.

[0007] Support frame one and support frame two have the same structure. Support frame one includes plate one and plate two, which are identical in shape and arranged in parallel. Plate one and plate two have a fixed shaft one and a support shaft two at their respective ends. The fixed shaft one and support shaft two pass through the end and bottom of plate one and plate two, respectively. The two ends of the fixed shaft one are rotatably connected to plate one and plate two, and the support shaft two is fixedly connected to plate one and plate two. The two ends of the fixed shaft one are fixedly connected to the side walls of the slide groove two. Support frame two includes plate three and plate four, which have the same structure as plate one and plate four. Plate three and plate four are arranged in parallel, and the upper moving shaft passes through plate three and plate four. At the upper end of plate four, the two ends of the upper moving shaft rotate with plate three and plate four respectively, and the two ends of the lower moving shaft rotate with the lower ends of plate one and plate two respectively. The distance between plate three and plate four is less than the distance between plate one and plate two. Plate three and plate four are located inside between plate one and plate two. The intermediate shaft passes through the middle of plate one and plate two, and the intermediate shaft passes through the middle of plate three and plate four respectively. The intermediate shaft is rotated and connected to plate three, plate one, plate two and plate four respectively. The support shaft one passes through plate three and plate four and is fixedly connected to plate three and plate four. The end of the piston rod of the hydraulic cylinder is between plate three and plate four.

[0008] The accordion dust cover includes a folded dust cover, which is folded together. The top of the base plate and the bottom of the top plate are fixedly connected to the bottom and top of the folded dust cover, respectively.

[0009] The beneficial effects of this utility model are:

[0010] This utility model can raise the accordion dust cover using a lifting device to create a dustproof space. It can be moved flexibly by the casters and moved to the equipment and personnel that need dust protection during operation, thus achieving mechanical dust protection and improving work efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a partial structural schematic diagram of the present invention;

[0013] Figure 3 This is a schematic diagram of the lifting device structure of this utility model.

[0014] The reference numerals in all the attached drawings are as follows: 1. Base plate; 101. Slide groove one; 2. Moving wheel; 3. Push handle; 4. Top plate; 5. Bellows dust cover; 6. Lifting device; 61. Support frame one; 62. Support frame two; 63. Intermediate shaft; 64. Fixed shaft one; 65. Fixed shaft two; 66. Moving shaft; 67. Pulley; 68. Support shaft one; 69. Hydraulic cylinder; 610. Support shaft two; 611. Slide groove two; 601. Flat plate one; 602. Flat plate two; 621. Flat plate three; 622. Flat plate four; 51. Folded dustproof cloth. Detailed Implementation

[0015] like Figure 1-3 As shown: A liftable dock dustproof net includes a base plate 1 and a top plate 4. The base plate 1 is U-shaped, and the top plate 4 is L-shaped. The top plate 4 is located directly above the base plate 1. There are two top plates 4, which are symmetrically arranged on the left and right sides. The top plates 4 correspond vertically to the base plate 1. The four corners of the bottom of the base plate 1 are rotatably connected to the moving wheels 2. The top rear side wall of the base plate 1 is fixedly connected to the push handle 3. The top of the base plate 1 and the bottom of the top plate 4 are respectively fixedly connected to the upper and lower ends of the accordion dustproof cover 5. The accordion dustproof cover 5 is U-shaped and extends vertically. Lifting devices 6 are respectively arranged between the top left and right sides of the base plate 1 and the bottom left and right sides of the two top plates 4. The lifting devices 6 are located inside the accordion dustproof cover 5.

[0016] The lifting device 6 includes a first support frame 61 and a second support frame 62, which are arranged in a crisscross pattern. The top of the base plate 1 and the bottom of the top plate 4 have a first slide groove 101 and a second slide groove 611, respectively. Both ends of the first support frame 61 and the second support frame 62 extend into the first slide groove 101 and the second slide groove 611, respectively. Both the first support frame 61 and the second support frame 62 are frame-shaped. The second support frame 62 is located within the first support frame 61. A central shaft 63 is rotatably connected between the middle of the first support frame 61 and the second support frame 62, passing through the middle of both. A fixed shaft 64 is rotatably connected to the top of the first support frame 61. The second support frame 62... A fixed shaft 65 is rotatably connected to the bottom. A fixed shaft 64 is fixed in a slide groove 611. A fixed shaft 65 is fixed in a slide groove 101. A movable shaft 66 is rotatably connected to the top of a support frame 61 and the bottom of a support frame 62. A pulley 67 is fixedly connected to both ends of the upper and lower movable shafts 66. The two pulleys 67 slide in contact with slide groove 611 and slide groove 101 respectively. A support shaft 68 is fixedly connected to the upper middle part of the support frame 62. The support shaft 68 is rotatably connected to the end of the piston rod of the hydraulic cylinder 69. The bottom end of the cylinder of the hydraulic cylinder 69 is rotatably connected to the support shaft 610. The support shaft 610 is fixedly connected to the bottom of the support frame 61.

[0017] Support frame 1 61 and support frame 2 62 have the same structure. Support frame 1 61 includes plate 1 601 and plate 2 602. Plate 1 601 and plate 2 602 have the same shape and are arranged in parallel. Plate 1 601 and plate 2 602 have a fixed shaft 1 64 and a support shaft 2 610 at both ends, respectively. The fixed shaft 1 64 and the support shaft 2 610 pass through the end and lower end of plate 1 601 and plate 2 602, respectively. The two ends of the fixed shaft 1 64 are rotatably connected to plate 1 601 and plate 2 602, respectively, and the support shaft 2 610 is fixedly connected to plate 1 601 and plate 2 602, respectively. The two ends of the fixed shaft 1 64 are fixedly connected to the two side walls of the slide groove 2 611, respectively. Support frame 2 62 includes plate 3 621 and plate 4 622. Plate 3 621, plate 1 601 and plate 4 622 have the same structure. Plate 3 621 and plate 4 622 are arranged in parallel, and the upper moving shaft 66 passes through plate 3 621 and plate 4 622. At the upper end of 22, the two ends of the upper movable shaft 66 are respectively rotated with the two ends of the three-plate 621 and the four-plate 622. The two ends of the lower movable shaft 66 are respectively rotatably connected to the lower ends of the one-plate 601 and the two-plate 602. The distance between the three-plate 621 and the four-plate 622 is less than the distance between the one-plate 601 and the two-plate 602. The three-plate 621 and the four-plate 622 are inside the space between the one-plate 601 and the two-plate 602. The intermediate shaft 63 passes through the middle of the one-plate 601 and the two-plate 602. The intermediate shaft 63 passes through the middle of the three-plate 621 and the four-plate 622. The intermediate shaft 63 is rotatably connected to the three-plate 621, the one-plate 601, the two-plate 602 and the four-plate 622. The support shaft 68 passes through the three-plate 621 and the four-plate 622. The support shaft 68 is fixedly connected to the three-plate 621 and the four-plate 622. The end of the piston rod of the hydraulic cylinder 69 is between the three-plate 621 and the four-plate 622.

[0018] The accordion dust cover 5 includes a folded dust cover 51, which is folded together. The top of the base plate 1 and the bottom of the top plate 4 are respectively fixedly connected to the bottom and top of the folded dust cover 51.

[0019] When the accordion dust cover 5 is not in use, the base plate 1 and the top plate 4 are close together, the support frame 61 and the support frame 62 of the lowering device 6 are crossed but not fully extended, and the hydraulic cylinder 69 is in a retracted state.

[0020] When dust protection is required, the operator pushes the entire dustproof net to the vicinity of the equipment requiring dust protection using the push handle 3. Then, the hydraulic cylinder 69 is activated, and the piston rod of the hydraulic cylinder 69 extends. Since the second support shaft 610 is fixedly connected to the bottom of the first support frame 61, the extension of the piston rod of the hydraulic cylinder 69 will drive the bottom end of the first support frame 61 to move towards the bottom end of the second support frame 62. This moves the bottom plate 1 away from the top plate 4, causing the folded dustproof cloth 51 to unfold upwards, forming a dustproof shielding space between the bottom plate 1 and the top plate 4. After the dustproof shielding space is fully unfolded, the equipment requiring dust protection is placed in the dustproof space for relevant operations. At this time, the accordion dust cover 5 can effectively prevent dust from entering the equipment and reduce the equipment from being corroded by dust. When the operation is completed and the dust dissipates, the bottom plate 1 and the top plate 4 move closer to each other, and the accordion dust cover 5 is retracted, returning to its initial state.

Claims

1. A dustproof net for a liftable wharf, comprising a bottom plate (1) and a top plate (4), the bottom plate (1) being in the shape of a concave character, and the top plate (4) being in the shape of L, characterized in that, The top plate (4) is located directly above the bottom plate (1), the number of the top plate (4) is two, the top plate (4) is symmetrically arranged left and right, the top plate (4) corresponds to the bottom plate (1) up and down, the bottom plate (1) is rotatably connected with the moving wheel (2) at the bottom of the four corners, the bottom plate (1) is fixedly connected with the push handle (3) at the top of the rear wall, the top of the bottom plate (1) and the bottom of the top plate (4) are fixedly connected with the organ dust cover (5) at the upper and lower ends respectively, the organ dust cover (5) is in the shape of a concave character, the organ dust cover (5) extends up and down, the left and right sides of the top of the bottom plate (1) and the left and right sides of the bottom of the two top plates (4) are respectively provided with lifting devices (6), and the lifting devices (6) are located inside the organ dust cover (5).

2. The wind dust screen of claim 1, wherein, The lifting device (6) comprises a support frame one (61) and a support frame two (62), the support frame one (61) and the support frame two (62) are cross-distributed, the top of the bottom plate (1) and the bottom of the top plate (4) are respectively provided with a sliding groove one (101) and a sliding groove two (611), both ends of the support frame one (61) and the support frame two (62) extend into the sliding groove one (101) and the sliding groove two (611) respectively, the support frame one (61) and the support frame two (62) are both in the shape of a frame, the support frame two (62) is in the support frame one (61), a middle shaft (63) is rotatably connected between the middle portions of the support frame one (61) and the support frame two (62), the middle shaft (63) penetrates the middle portions of the support frame one (61) and the support frame two (62), a fixed shaft one (64) is rotatably connected to the top of the support frame one (61), a fixed shaft two (65) is rotatably connected to the bottom of the support frame two (62), the fixed shaft one (64) is fixed in the sliding groove two (611), the fixed shaft two (65) is fixed in the sliding groove one (101), a moving shaft (66) is rotatably connected to the top of the support frame one (61) and the bottom of the support frame two (62), both ends of the moving shaft (66) are fixedly connected with a pulley (67), the two pulleys (67) are respectively in sliding fit with the sliding groove two (611) and the sliding groove one (101), a support shaft one (68) is fixedly connected to the upper middle portion of the support frame two (62), the support shaft one (68) is rotatably connected with the end of the piston rod of the hydraulic cylinder (69), the cylinder barrel bottom end of the hydraulic cylinder (69) is rotatably connected with the support shaft two (610), and the support shaft two (610) is fixedly connected with the bottom of the support frame one (61).

3. The wind dust screen of claim 1, wherein, The support frame one (61) and the support frame two (62) are identical in structure, the support frame one (61) comprises a flat plate one (601) and a flat plate two (602), the flat plate one (601) and the flat plate two (602) are identical in shape and arranged in parallel, the flat plate one (601) and the flat plate two (602) are provided with a fixed shaft one (64) and a support shaft two (610) at two ends respectively, the fixed shaft one (64) and the support shaft two (610) penetrate the ends and the lower ends of the flat plate one (601) and the flat plate two (602) respectively, the fixed shaft one (64) is rotatably connected with the flat plate one (601) and the flat plate two (602) at two ends respectively, and the support shaft two (610) is fixedly connected with the flat plate one (601) and the flat plate two (602) respectively; the fixed shaft one (64) is fixedly connected with the two side walls of the sliding groove two (611) at two ends respectively, the support frame two (62) comprises a flat plate three (621) and a flat plate four (622), the flat plate three (621), the flat plate one (601) and the flat plate four (622) are identical in structure, the flat plate three (621) and the flat plate four (622) are arranged in parallel, the upper moving shaft (66) penetrates the upper ends of the flat plate three (621) and the flat plate four (622), the upper moving shaft (66) is rotatable with the flat plate three (621) and the flat plate four (622) at two ends respectively, the lower moving shaft (66) is rotatably connected with the lower ends of the flat plate one (601) and the flat plate two (602) at two ends respectively, the distance between the flat plate three (621) and the flat plate four (622) is smaller than the distance between the flat plate one (601) and the flat plate two (602), the flat plate three (621) and the flat plate four (622) are inside the flat plate one (601) and the flat plate two (602), the middle shaft (63) penetrates the middle parts of the flat plate one (601) and the flat plate two (602), the middle shaft (63) penetrates the middle parts of the flat plate three (621) and the flat plate four (622), the middle shaft (63) is rotatably connected with the flat plate three (621), the flat plate one (601), the flat plate two (602) and the flat plate four (622) respectively, the support shaft one (68) penetrates the flat plate three (621) and the flat plate four (622), the support shaft one (68) is fixedly connected with the flat plate three (621) and the flat plate four (622), and the end of the piston rod of the hydraulic cylinder (69) is between the flat plate three (621) and the flat plate four (622).

4. The dust screen of claim 1, wherein, The organ dust cover (5) comprises folded dust cloths (51), the folded dust cloths (51) are arranged in mutual folding, and the top of the bottom plate (1) and the bottom of the top plate (4) are fixedly connected with the bottom and the upper part of the folded dust cloths (51) respectively.

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