Conveyor single-side door protection cover and conveyor

Abstract

The utility model belongs to tobacco industry machinery and equipment technical field, especially relates to a conveyor one -sided door protection cover and conveyor. It includes the flap door protection cover for covering the inside of conveyor along the arrangement of conveyor side wall, the flap door protection cover includes flap door, gas spring, support seat, one end both sides of flap door are hinged with support seat respectively, support seat is connected with the wallboard of conveyor, one end of gas spring is hinged with the middle part of flap door side, and the other end is hinged with support seat, the flap door is in the closed position with the corresponding support seat and forms closed chamber together, is used to suppress dust and prevent foreign matter from entering. The utility model satisfies the comprehensive requirement of modern tobacco production line to continuous, high clean, high quality delivery.

Description

Technical Field

[0001] This utility model belongs to the technical field of tobacco industry machinery and equipment, specifically relating to a single-sided door protective cover for a conveyor and the conveyor itself. Background Technology

[0002] Conveyors are key connecting equipment in tobacco production lines, enabling continuous conveying, lifting, and quantitative feeding of tobacco materials in different forms, such as tobacco leaves, shredded tobacco, and stems, throughout all processes including tobacco leaf acquisition, re-drying, shredding, and rolling. By precisely transferring raw tobacco, re-dried tobacco leaves, and stems from upstream storage areas, cleaning machines, and leaf-moistening machines to downstream sections such as shredders, drying machines, and rolling machines, conveyors effectively eliminate spatial interruptions between processes, ensuring production continuity, preventing material accumulation and material shortages, and thus maintaining the stable and efficient operation of the entire production line.

[0003] Tobacco materials are highly hygroscopic, easily absorb odors, and are susceptible to contamination. Furthermore, high-temperature processes such as tobacco drying require the material temperature to remain stable for short periods to prevent drastic moisture fluctuations from affecting quality. Therefore, existing conveyors typically employ sealed or semi-sealed casings to isolate humid air and dust, and are equipped with heat insulation layers or jackets in high-temperature sections to suppress heat loss. However, traditional casing structures have the following shortcomings: 1. It is difficult to balance sealing and maintainability: Although a fully sealed casing can reduce dust spillage and foreign object intrusion, it is cumbersome to disassemble and assemble during daily inspection, cleaning and maintenance, resulting in high maintenance costs. 2. Limited operational safety protection: Some existing detachable covers lack reliable safety interlocks or limit mechanisms, and when personnel open them for inspection, there may still be hidden dangers such as pinching, burns or dust leakage. 3. Insufficient moisture retention and heat preservation: The sealing structure was not precisely designed to meet the process requirements of keeping tobacco materials "hot but not damp". The high-temperature insulation layer has high thermal inertia, resulting in significant temperature fluctuations, which affects the uniformity of subsequent feeding and the quality of rolling.

[0004] To address these issues, the industry has begun adding single-sided opening protective covers to the outside of conveyors. However, while existing protective covers vary in structure, they generally lack a universal solution that is adjustable, highly interchangeable, and easy to install quickly. They are also incompatible with different conveyor models' side wall thicknesses and mounting hole spacing, and cannot achieve lateral and vertical fine-tuning within limited space. Some solutions lack effective support after opening, posing safety risks, and the flip-top door is prone to sagging and deformation after prolonged use, affecting the sealing effect. Therefore, there is an urgent need for a flexible, reliable, and easy-to-install single-sided opening protective cover for conveyors to meet the comprehensive needs of modern tobacco production lines. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the above-mentioned background technology and provide a single-side door protective cover for a conveyor and a conveyor.

[0006] The technical solution adopted by this utility model is: a single-sided opening protective cover for a conveyor, including a flip-top door protective cover arranged along the side wall of the conveyor for covering the interior of the conveyor. The flip-top door protective cover includes a flip-top door, a gas spring, and a support base. One end of the flip-top door is hinged to the support base on both sides. The support base is connected to the conveyor wall panel. One end of the gas spring is hinged to the middle of the side of the flip-top door, and the other end is hinged to the support base. When the flip-top door is in the closed position, it and the corresponding support base together form a closed chamber to suppress dust escape and prevent foreign objects from entering.

[0007] A more preferred embodiment includes a side-opening protective cover arranged along the side wall of the conveyor to cover the interior of the conveyor. The side-opening protective cover includes a side-opening door, a hinge, a connecting plate, a side beam, and a support assembly. One side of the side-opening door is fixed to the connecting plate by the hinge. The connecting plate and the support assembly are connected to the ball nuts in the upper and lower rows of slots in the side beam. The support assembly is connected to the wall panel on one side of the conveyor. When the side-opening door is in the closed position, it forms a closed chamber together with the corresponding side beam to suppress dust escape and prevent foreign objects from entering.

[0008] Preferably, the side-opening door protective cover and the flip-top door protective cover are arranged on the side wall of the conveyor in a preset number and spacing manner.

[0009] Preferably, the side-opening door protective cover and the flip-top door protective cover are arranged alternately along the length of the conveyor, or the arrangement of the side-opening door protective cover and the flip-top door protective cover along the length of the conveyor is a combination of alternating arrangement and group arrangement.

[0010] Preferably, the support assembly includes an adjusting seat, a transition frame, and a mounting base plate. The mounting base plate is connected to a wall panel on one side of the conveyor by screws. The adjusting seat has a horizontal adjustment hole and a vertical adjustment hole. The horizontal adjustment hole is connected to the upper end of the transition frame by screws, and the lower end of the transition frame is connected to the mounting base plate. The vertical adjustment hole is connected to ball nuts in the upper and lower rows of slots on the side beam by screws. The ball nuts slide in the slots of the side beam to connect the support assembly to the side beam at any position.

[0011] Preferably, the side-opening door includes a first cover plate, a first frame, and a first handle. The first cover plate and the first frame are in the shape of an arch. The first frame is a rectangular frame formed by splicing two front and rear first arched square tubes and two first left and right square tubes. The first bending strip and the second bending strip are respectively fixed on the two first arched square tubes and press down on the first cover plate by screws. The outer side of the first bending strip on one side is provided with a mounting block at intervals. The movable end of the hinge is fixedly connected to the mounting block. The first handle is provided on the first left and right square tubes.

[0012] Preferably, the flip door includes a second cover plate, a second frame, and a second handle. The second cover plate and the second frame are in the shape of an arch. The second frame is a rectangular frame formed by splicing two front and rear second arched square tubes and two second left and right square tubes. Two third bending strips are respectively fixed on the two second arched square tubes, pressing down on the second cover plate and fixing it with screws. Flying plates are fixed on the outside of the two second left and right square tubes. The flying plates are provided with a rotating shaft that cooperates with the rotating hole opened on the support base. The second handle is provided on the second left and right square tubes.

[0013] Preferably, the horizontal adjustment hole and the vertical adjustment hole of the support component are both oblong holes, with a horizontal adjustment stroke ≥10mm and a vertical adjustment stroke ≥40mm.

[0014] Preferably, the outer edge of the side-opening door and the flip-top door is provided with a wear-resistant sealing strip, which forms an elastic fit with the side wall or side beam of the conveyor when the door is closed.

[0015] This utility model also discloses a conveyor, including the single-sided door protective cover of the conveyor.

[0016] This utility model's single-side opening protective cover for conveyors utilizes an adjustable support assembly and a ball-and-nut sliding structure to achieve precise micro-adjustment in both horizontal and vertical directions. It can be quickly installed at any height on the sidewall of different conveyor models, significantly reducing downtime for modifications. When closed, the protective cover forms a highly airtight chamber with the conveyor casing, preventing dust spillage and foreign object intrusion. It also provides double-layer isolation with the existing insulation layer, stabilizing material temperature and humidity and improving the consistency of subsequent processes such as yarn making and winding, as well as product quality. The door uses a spring hinge or gas spring assisted mechanism, automatically opening when open and automatically locking when closed, allowing a single person to safely and efficiently complete daily inspections and cleaning. The modular design allows for interchangeable side-opening and flip-top doors to meet different on-site operating habits and provides upgrade potential. The smooth inner and outer surfaces of the protective cover are free of dust accumulation dead corners, and the seals are easy to replace, significantly reducing maintenance workload and spare parts costs, comprehensively improving safety, environmental protection, operational efficiency, and adaptability. In summary, this utility model, with its synergistic design of "adjustable support + assisted door body + sealed chamber", has achieved significant improvements in safety and environmental protection, operation and maintenance efficiency, process control and adaptability, meeting the comprehensive requirements of modern tobacco production lines for continuous, high-cleanliness and high-quality conveying. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the side-opening door protective cover; Figure 3 This is a partial structural diagram of the side-opening door protective cover; Figure 4 Side view of the side-opening door protective cover; Figure 5 This is a schematic diagram of the supporting component structure; Figure 6 This is a schematic diagram of a side-opening door structure; Figure 7 This is a schematic diagram of the structure of the flip-top door protective cover; Figure 8 This is a schematic diagram of a flip door structure; Figure 9 This is a schematic diagram of one embodiment of a side-opening door.

[0018] In the diagram, 1-side-opening door protective cover; 11-side-opening door; 111-first cover plate; 112-first frame; 1121-first arched square tube; 1122-first left and right square tubes; 1123-first bending strip; 1124-mounting block; 1125-second bending strip; 113-first handle; 12-hinge; 13-connecting plate; 14-side beam; 141-ball bearing nut; 15-support assembly; 151-adjusting seat; 152-side beam. - Transition frame, 153- Mounting base plate), 2- Flip-top door protective cover (21- Flip-top door, 211- Second cover plate, 212- Second frame, 2121- Second arched square tube, 2122- Second left and right square tubes, 2123- Third bending strip, 2124- Flying plate, 2125- Rotating shaft, 2126- Support rod seat shaft, 213- Second handle, 22- Gas spring, 23- Support seat, 231- Rotating hole), 3- Conveyor. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] like Figure 1 As shown, the single-side opening protective cover for the conveyor in this embodiment includes a side-opening protective cover 1 and a flip-top protective cover 2. In actual use, a suitable single-side opening protective cover can be selected for the conveyor 3 according to specific usage conditions and operational requirements. Among them, the side-opening door protective cover 1 has the feature of randomly opening on one side, making it flexible and convenient to operate; the flip-top door protective cover 2 adopts a sequential flip-open design, which can meet specific operational needs.

[0021] like Figures 2-5 , Figure 9 As shown, the side-opening door protective cover 1 consists of a side-flipping door 11, a hinge 12, a connecting plate 13, a side beam 14, and a support assembly 15. The support assembly 15 includes an adjusting seat 151, a transition frame 152, and a mounting base plate 153. The mounting base plate 153 is connected to the wall panel on one side of the conveyor 3 by screws. The adjusting seat 151 has horizontal and vertical adjustment holes. The horizontal adjustment holes are connected to the upper end of the transition frame 152 by screws, and the two rows of vertical adjustment holes are connected to the ball nuts 141 in the upper and lower slots of the side beam 14 by screws. The ball nuts 141 can slide within the slots of the side beam 14. This design allows the support assembly 15 to be connected to the side beam 14 at any position. During installation, only a suitable position needs to be drilled in the wall panel of the conveyor 3, and then the support assembly 15 can be fixed. Furthermore, the side beam 14 is fastened to the upper edge of the wall panel of the conveyor 3 to ensure the sealing effect of the side-opening door protective cover 1 after it is closed.

[0022] The side-opening door 11 is fixed to the connecting plate 13 by the hinge 12. The connecting plate 13 is connected to the ball nuts 141 in the upper and lower slots of the side beam 14 by screws.

[0023] The side-opening door 11 is composed of a first cover plate 111, a first frame 112 and a first handle 113, and the whole structure is an "arch".

[0024] like Figure 6 As shown, the first frame 112 is a rectangular frame formed by splicing two front and rear first arched square tubes 1121 and two left and right first square tubes 1122; the first bending strip 1123 and the second bending strip 1125 are respectively externally fixed to the two first arched square tubes 1121 and respectively press down on the first cover plate 111, and are fixed by screws. Two mounting blocks 1124 are provided on the outer side of the right first bending strip 1123.

[0025] The first cover plate 111 is made of transparent plastic, allowing for clear observation of the interior from the outside. It is held in place by the first bending strip 1123 and the second bending strip 1125 and secured with screws. Its thickness and length must be matched to ensure sufficient deformation capacity and prevent collapse in the middle. The first handle 113 on one side of the side-opening door 11 is fixed to the second bending strip 1125. The movable end of the hinge 12 is fixedly connected to the mounting block 1124. The hinge 12 has a spring inside, and the side-opening door 11 is subjected to elastic force during the closing and opening process, achieving a tight seal when closed and a support when open.

[0026] like Figure 7 As shown, the flip-top door protective cover 2 consists of a flip-top door 21, a gas spring 22, and a support base 23. The flip-top door 21 is composed of a second cover plate 211, a second frame 212, and a second handle 213, and the whole structure is in the shape of an "arch".

[0027] like Figure 8 As shown, the second frame 212 is a rectangular frame formed by splicing two front and rear second arched square tubes 2121 and two second left and right square tubes 2122. The third bending strip 2123 is externally fixed to the second arched square tubes 2121, pressing down the second cover plate 211 and fixing it with screws. A fly plate 2124 is fixed to the outside of the second left and right square tubes. The fly plate 2124 is provided with a rotating shaft 2125 and is hinged to the rotating hole 231 on the support base 23.

[0028] The second cover plate 211 is made of transparent plastic, allowing for clear observation of the interior from the outside. It is held in place by the third bending strip 2123 and secured with screws. Its thickness and length must be matched to ensure sufficient deformation capacity and prevent collapse in the middle. The second handles 213 on both sides of the flip door 21 are fixed to the third bending strip 2123 on both sides. The rotating shaft 2125 is hinged to the support base 23. The gas spring 22 is hinged to the support base 23 via the strut seat shaft 2126. The support base 23 is fixed to the wall panel of the conveyor 3, thus realizing the opening and closing function of the side flip door 21. The flip door 21 rotates around the rotating hole 231. The position of the rotating hole 231 must be set to ensure that the upper and lower ends of the flip door 21 are not interfered with when it is open.

[0029] Under the spring force of the hinge 12, the side-hinged door 11 and the flip-up door 21 under the spring force of the gas spring 22 can both produce a pressure-locking effect when closed.

[0030] When opening, simply apply force to the first handle 113 (for side-flipping doors) or the second handle 213 (for flip-up doors) and lift it upwards at a certain angle. The vertical force and torque will change direction from bottom to top, and the side-flipping door 11 or the flip-up door 21 will automatically flip up to the maximum angle, that is, reach the opening limit position.

[0031] When closing, flipping the side door 11 or the hinged door 21 will change the direction of the vertical force and torque from top to bottom, and the door will close automatically. The overall operation is simple, the opening is smooth, and the closing is tight.

[0032] This embodiment also discloses a conveyor, including the single-sided door protective cover of the conveyor.

[0033] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Contents not described in detail in this specification belong to prior art known to those skilled in the art.

Claims

1. A single-sided door protective cover for a conveyor, comprising a flip-top door protective cover (2) arranged along the side wall of the conveyor (3) for covering the interior of the conveyor (3), characterized in that: The flip-top door protective cover (2) includes a flip-top door (21), a gas spring (22), and a support base (23). One end of the flip-top door (21) is hinged to the support base (23) on both sides. The support base (23) is connected to the wall panel of the conveyor (3). One end of the gas spring (22) is hinged to the middle of the side of the flip-top door (21), and the other end is hinged to the support base (23). When the flip-top door (21) is in the closed position, it and the corresponding support base (23) together form a closed chamber to suppress dust escape and prevent foreign objects from entering.

2. The conveyor single-side door protective cover according to claim 1, characterized in that: It also includes a side-opening protective cover (1) arranged along the side wall of the conveyor (3) for covering the interior of the conveyor (3). The side-opening protective cover (1) includes a side-opening door (11), a hinge (12), a connecting plate (13), a side beam (14), and a support assembly (15). One side of the side-opening door (11) is fixed to the connecting plate (13) by the hinge (12). The connecting plate (13), the support assembly (15), and the ball nuts (141) in the upper and lower slots of the side beam (14) are connected. The support assembly (15) is connected to the wall panel on one side of the conveyor (3). When the side-opening door (11) is in the closed position, it forms a closed chamber together with the corresponding side beam (14) to suppress dust escape and prevent foreign objects from entering.

3. The conveyor single-side door protective cover according to claim 2, characterized in that: The side-opening door protective cover (1) and the flip-top door protective cover (2) are arranged on the side wall of the conveyor (3) according to a preset quantity and spacing.

4. The conveyor single-side door protective cover according to claim 3, characterized in that: The side-opening door protective cover (1) and the flip-top door protective cover (2) are arranged alternately along the length of the conveyor (3), or the arrangement of the side-opening door protective cover (1) and the flip-top door protective cover (2) along the length of the conveyor (3) is a combination of alternating arrangement and group arrangement.

5. The conveyor single-side door protective cover according to claim 2, characterized in that: The support assembly (15) includes an adjustment seat (151), a transition frame (152), and a mounting base plate (153). The mounting base plate (153) is connected to the wall panel on one side of the conveyor (3) by screws. The adjustment seat (151) has a horizontal adjustment hole and a vertical adjustment hole. The horizontal adjustment hole is connected to the upper end of the transition frame (152) by screws. The lower end of the transition frame (152) is connected to the mounting base plate (153). The vertical adjustment hole is connected to the ball nuts (141) in the upper and lower rows of slots of the side beam (14) by screws. The ball nuts (141) slide in the slots of the side beam (14) to connect the support assembly (15) and the side beam (14) at any position.

6. The conveyor single-side door protective cover according to claim 2, characterized in that: The side-opening door (11) includes a first cover plate (111), a first frame (112), and a first handle (113). The first cover plate (111) and the first frame (112) are in the shape of an arch. The first frame (112) is a rectangular frame formed by splicing two front and rear first arched square tubes (1121) and two first left and right square tubes (1122). The first bending strip (1123) and the second bending strip (1125) are respectively fixed on the two first arched square tubes (1121) and press down on the first cover plate (111) by screws. The first bending strip (1123) on one side is provided with an installation block (1124) at intervals on the outside. The movable end of the hinge (12) is fixedly connected to the installation block (1124). The first handle (113) is provided on the first left and right square tubes (1122).

7. The conveyor single-side door protective cover according to claim 1, characterized in that: The flip door (21) includes a second cover plate (211), a second frame (212), and a second handle (213). The second cover plate (211) and the second frame (212) are in the shape of an arch. The second frame (212) is a rectangular frame spliced ​​together by two front and rear second arched square tubes (2121) and two second left and right square tubes (2122). Two third bending strips (2123) are respectively fixed on the two second arched square tubes (2121), pressing down the second cover plate (211) and fixed by screws. Flying plates (2124) are fixed on the outside of the two second left and right square tubes (2122). The flying plates (2124) are provided with a rotating shaft (2125) that cooperates with the rotating hole (231) opened on the support base (23). The second handle (213) is provided on the second left and right square tubes (2122).

8. The conveyor single-side door protective cover according to claim 5, characterized in that: The horizontal adjustment hole and the vertical adjustment hole of the support component (15) are both oblong holes, with a horizontal adjustment stroke ≥10mm and a vertical adjustment stroke ≥40mm.

9. The conveyor single-side door protective cover according to claim 2, characterized in that: The outer edges of the side-opening door (11) and the flip-top door (21) are provided with wear-resistant sealing strips. When the door is closed, the sealing strips form an elastic fit with the side wall or side beam (14) of the conveyor (3).

10. A conveyor, characterized in that... Includes the single-sided door protective cover for the conveyor as described in any one of claims 1 to 9.

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