Elevator

Abstract

The utility model discloses an elevator. The elevator comprises an elevator box body and a sealing cover seat body. The elevator box is provided with a base plate, a first side plate and two second side plates, the two second side plates are oppositely arranged on the base plate in a spaced mode, the first side plate is connected with the two second side plates, the first side plate and the base plate are arranged in a spaced mode to define a cleaning opening, and the base plate and the two second side plates all extend out of the first side plate. The extending parts of the two second side plates are bent in the direction away from the cleaning opening so as to form first flange edges correspondingly. The sealing cover seat body is inserted into the cleaning opening, the bottom face of the sealing cover seat body is attached to the base plate, second flange edges extend out of the two opposite sides of the sealing cover seat body so as to be detachably attached and connected with the first flange edges of the two second side plates in a one-to-one correspondence mode, so that no dead angle exists between the sealing cover seat body and the base plate and between the sealing cover seat body and the two second side plates, and accumulated materials are more conveniently cleaned.

Description

hoist Technical Field

[0001] This application belongs to the field of hoisting technology, and specifically relates to a hoisting machine. Background Technology

[0002] Currently, bucket elevators are indispensable machinery in modern agriculture, mainly used for the vertical transport of various bulk and granular materials, such as grains and fertilizers. To ensure normal operation, a certain gap needs to be maintained between the bucket track and the bottom of the elevator; this space can lead to material accumulation. For proper operation and maintenance, this accumulated material needs to be cleaned regularly, and a cleaning port is provided at the bottom of the elevator. Through the cleaning port, operators can periodically remove the accumulated material, helping to prevent bucket blockage. Furthermore, operators can access the bottom area of ​​the elevator through the cleaning port to perform maintenance and repairs, such as checking the chain and bucket wear and replacing or adjusting them as needed. Regularly cleaning the accumulated material reduces resistance loss during transport, thereby improving the operating efficiency of the bucket elevator. It also prevents excessive wear on the elevator casing and chain, thus extending the service life of the bucket elevator.

[0003] Therefore, the installation of a cleaning port is essential. However, existing cleaning ports are usually sealed using insert plates. The insert structure of these plates creates dead corners on the bottom and sides of the elevator, making it difficult to clean the accumulated material. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies, this application provides a hoist, which aims to solve the technical problem that it is inconvenient to clean the material accumulation in the dead corners of the hoist cleaning port.

[0005] To achieve the above objectives, this application provides a hoist, which includes a hoist housing and a sealing cover seat. The hoist housing has a base plate, a first side plate, and two second side plates. The two second side plates are arranged at intervals on the base plate. The first side plate connects the two second side plates and is spaced apart from the base plate to form a cleaning opening. The base plate and the two second side plates extend beyond the first side plate. The extended portions of the two second side plates are bent in a direction away from the cleaning opening to form first flange edges respectively. The sealing cover seat is inserted into the cleaning opening and its bottom surface is attached to the base plate. Second flange edges extend from opposite sides of the sealing cover seat to detachably and securely connect with the first flange edges of the two second side plates respectively.

[0006] In this embodiment, the opposite sides of the sealing cover are both provided as lateral contact planes, so as to be respectively contacted and fitted with the inner sides of the two second side plates.

[0007] In this embodiment, the sealing cover body includes a sealing base plate, a sealing panel, and two sealing side plates. The two sealing side plates are respectively erected at opposite ends of the sealing base plate. The sealing panel is erected on the sealing base plate and connects the two sealing side plates. The sealing base plate is designed to be in contact with the substrate. Each of the two sealing side plates includes a bonding plate portion and a second flange edge arranged sequentially along the direction of the sealing cover body exiting from the cleaning port. The bonding plate portion is provided with a lateral bonding plane, and the second flange edge is designed to be bent from the bonding plate portion toward the direction away from the cleaning port.

[0008] In this embodiment, the lower end of the sealing panel is connected to the inner end of the sealing base plate, and the sealing panel is inclined towards the outer end of the sealing base plate.

[0009] In this embodiment, the sealing panel extends out of the sealing side plate, and the extended portion of the sealing panel is bent toward the first side plate to form a third flange edge, which is fitted and sealed to the first side plate.

[0010] In this embodiment, the end of the first side plate near the cleaning port is bent toward the inside of the cleaning port to form a fourth flange edge, which is fitted to the sealing panel.

[0011] In this embodiment of the application, the sealing cover body further includes a support assembly, which is located between the two sealing side plates and is connected between the sealing panel and the sealing base plate.

[0012] In this embodiment of the application, the support assembly includes a support plate located between two sealing side plates, the support plate is erected on the sealing base plate, and the support plate is connected to the side of the sealing panel near the sealing base plate.

[0013] In this embodiment of the application, an overlap notch is provided on the bottom end of the support plate near the sealing panel. The overlap notch matches the shape of the sealing base plate, and the sealing base plate is inserted into the overlap notch.

[0014] In this embodiment, the support assembly includes a support handle connected between two sealing side plates.

[0015] In this embodiment, a connecting nut is provided on the side of the first flange that is away from the corresponding second flange. The sealing cover body also includes a fastener, which passes through the second flange and the first flange in sequence and is threadedly connected to the connecting nut.

[0016] Through the above technical solutions, the hoist provided in this application embodiment has the following beneficial effects:

[0017] The substrate, the first side plate, and the two second side plates enclose a cleaning opening. A sealing cap is inserted into the cleaning opening, with its bottom surface flush against the substrate, eliminating any dead angles between them and facilitating the cleaning of accumulated material. Furthermore, the bottom surface of the sealing cap and the substrate are in full-surface contact, resulting in a better seal. The substrate extends beyond the first side plate, guiding the insertion of the sealing cap into the cleaning opening and ensuring a smoother insertion.

[0018] Both second side plates extend beyond the first side plate, and the extended portions of both second side plates are bent away from the cleaning opening, forming first flange edges on each. This bending avoids gaps caused by welding, resulting in a better seal. Second flange edges extend from both the front and rear sides of the sealing cover body, and each of the two second flange edges is detachably connected to one of the two first flange edges, allowing for a detachable connection between the sealing cover body and the housing, enabling the cleaning opening to be opened and closed. When the operator needs to clean or maintain the elevator, the first and second flange edges are separated, and the sealing cover body is pulled out, opening the cleaning opening. After cleaning and maintenance, the sealing cover body is inserted into the cleaning opening, and the first and second flange edges are connected, closing the cleaning opening. Furthermore, the detachable connection between the second and first flange edges eliminates any dead angles between the sealing cover body and the two second side plates, facilitating the cleaning of accumulated material.

[0019] In this application, the cleaning port is sealed by a sealing cover, and there are no dead corners between the sealing cover and the substrate and the two second side plates, which makes it easier to clean up the accumulated material and provides a better sealing effect.

[0020] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0022] Figure 1 is a schematic structural diagram of a hoist according to an embodiment of the present application from one perspective;

[0023] Figure 2 is an exploded structural diagram of a hoist according to an embodiment of this application;

[0024] Figure 3 is a structural schematic diagram of the sealing cover seat in a hoist according to an embodiment of the present application from one view.

[0025] Figure 4 is a structural schematic diagram of the sealing cover seat in a hoist according to an embodiment of the present application from another perspective;

[0026] Figure 5 is a structural schematic diagram of a hoist according to an embodiment of the present application from another perspective;

[0027] Figure 6 is a magnified view of part A in Figure 5;

[0028] Figure 7 is a partially enlarged schematic diagram of a hoist according to an embodiment of the present application.

[0029] Explanation of reference numerals in the attached figures

[0030] 10 Hoisting machine housing 221 Third flange edge

[0031] 11. Substrate 23. Sealing side plate

[0032] 12 First side plate 231 Second flange edge

[0033] 121 Fourth flange edge 232 Fitting plate section

[0034] 13 Second side panel 24 Support assembly

[0035] 131 First flange edge 241 Support plate

[0036] 14 Cleaning port 2411 Overlap gap

[0037] 15 Connecting nut 242 Support handle

[0038] 20 Sealing cover body 40 Fasteners

[0039] 21 Sealing base plate 41 Screw

[0040] 22 Sealing panel 42 Tightening handle Detailed Implementation

[0041] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0042] The hoist of this application is described below with reference to the accompanying drawings.

[0043] As shown in Figures 1 to 7, this application provides a hoist, which includes a hoist housing 10 and a sealing cover seat 20. The hoist housing 10 has a base plate 11, a first side plate 12, and two second side plates 13. The two second side plates 13 are arranged at intervals on the base plate 11. The first side plate 12 connects the two second side plates 13 and is spaced apart from the base plate 11 to form a cleaning port 14. The base plate 11 and the two second side plates 13 both extend out of the first side plate 12. The extended portions of the two second side plates 13 are bent in a direction away from the cleaning port 14 to form first flange edges 131 respectively. The sealing cover seat 20 is inserted into the cleaning port 14 and its bottom surface is attached to the base plate 11. The two opposite sides of the sealing cover seat 20 are provided with second flange edges 231, which are detachably attached to the first flange edges 131 of the two second side plates 13 respectively.

[0044] Please refer to Figures 1 and 2. Two second side plates 13 are spaced apart on the substrate 11 along the front-to-back direction. A first side plate 12 is located to the right of the two second side plates 13, connecting the two second side plates 13, and is spaced apart from the substrate 11 along the vertical direction. The substrate 11, the first side plate 12, and the two second side plates 13 together form a cleaning port 14. A sealing cover 20 is inserted into the cleaning port 14, with its bottom surface fitting against the substrate 11, eliminating any dead angles between them and facilitating the cleaning of accumulated material. Furthermore, the bottom surface of the sealing cover 20 is in surface-to-surface contact with the substrate 11, resulting in a better sealing effect. The substrate 11 extends beyond the first side plate 12, and this extended portion guides the insertion of the sealing cover 20 into the cleaning port 14, allowing for smoother insertion.

[0045] Both second side plates 13 extend beyond the first side plate 12. The extended portions of both second side plates 13 are bent away from the cleaning port 14, as shown in Figure 2. The extended portions of the two second side plates 13 are bent forward and backward respectively, forming first flange edges 131. This bending avoids gaps formed by welding, resulting in a better seal. Second flange edges 231 extend from both the front and rear sides of the sealing cover body 20. The two second flange edges 231 are detachably connected to the two first flange edges 131, allowing for a detachable connection between the sealing cover body 20 and the housing, enabling the opening and closing of the cleaning port 14. When the operator needs to clean or maintain the elevator, the first flange edges 131 and second flange edges 231 are separated, and the sealing cover body 20 is pulled out, opening the cleaning port 14. After cleaning and maintenance, insert the sealing cover 20 into the cleaning port 14 and connect the first flange edge 131 to the second flange edge 231, so that the cleaning port 14 is in the closed state. Furthermore, by setting the second flange edge 231 to be detachably and securely connected to the first flange edge 131, there are no dead angles between the sealing cover 20 and the two second side plates 13, facilitating the cleaning of accumulated materials.

[0046] In this application, the cleaning port 14 is sealed by the sealing cover 20. There are no dead corners between the sealing cover 20 and the substrate 11 and the two second side plates 13, which makes it easier to clean up the accumulated material and the sealing effect is better.

[0047] In this embodiment of the application, please refer to Figure 2. The opposite sides of the sealing cover 20 are both set as lateral contact planes, so as to be respectively attached to the inner side of the two second side plates 13. By setting the lateral contact planes, the two sides of the sealing cover 20 and the two second side plates 13 can be attached to each other, which can reduce the material entering the gap between the second side plates 13 and the sealing cover 20, resulting in a better sealing effect, reducing dust pollution in the working environment, and making the process of inserting the sealing cover 20 into the cleaning port 14 smoother.

[0048] In this embodiment of the application, please refer to Figure 3. The sealing cover body 20 includes a sealing base plate 21, a sealing panel 22, and two sealing side plates 23. The two sealing side plates 23 are respectively erected at opposite ends of the sealing base plate 21. The sealing panel 22 is erected on the sealing base plate 21 and connected to the two sealing side plates 23. The sealing base plate 21 is configured to be in contact with the substrate 11. Each of the two sealing side plates 23 includes a bonding plate portion 232 and a second flange edge 231 arranged sequentially along the direction of the sealing cover body 20 exiting from the cleaning port 14. The bonding plate portion 232 is provided with a lateral bonding plane, and the second flange edge 231 is configured to be bent away from the cleaning port 14 from the bonding plate portion 232.

[0049] Two sealing side plates 23 are respectively erected at the front and rear ends of the sealing base plate 21, and the sealing panel 22 is erected on the sealing base plate 21. The sealing panel 22 connects the two sealing side plates 23 to make the structure of the sealing cover body 20 more stable. The sealing panel 22 can prevent materials from entering the sealing cover body 20 and improve the sealing performance of the sealing cover body 20 to the cleaning port 14.

[0050] The bottom surface of the sealing base plate 21 is attached to the substrate 11 to achieve surface-to-surface contact between the sealing cover seat 20 and the substrate 11. Both sealing side plates 23 include a bonding plate portion 232 and a second flange edge 231. The bonding plate portion 232 and the second flange edge 231 are sequentially arranged along the direction in which the sealing cover seat 20 exits from the cleaning port 14 (from left to right in Figure 1). The bonding plate portion 232 has a lateral bonding plane for contacting the second side plate 13. Furthermore, the second flange edge 231 is bent away from the bonding plate portion 232 towards the opposite side of the cleaning port 14. This bending avoids gaps formed by welding, resulting in a better sealing effect.

[0051] In this embodiment, referring to Figure 4, the lower end of the sealing panel 22 is connected to the inner end of the sealing base plate 21, and the sealing panel 22 is inclined towards the outer end of the sealing base plate 21. The inner end of the sealing base plate 21 is the end of the sealing base plate 21 away from the first side plate 12, i.e., the left end. The outer end of the sealing base plate 21 is the end of the sealing base plate 21 closer to the first side plate 12, i.e., the right end. The inclined arrangement of the sealing panel 22 towards the outer end of the sealing base plate 21 can reduce the volume left at the bottom of the elevator, which helps to reduce material accumulation.

[0052] The sealing side plate 23 is connected between the sealing panel 22 and the sealing base plate 21. Therefore, the sealing side plate 23 is triangular in shape. Compared with the square shape of the sealing side plate 23, the sealing side plate 23 can reduce the obstruction or interference of the movement of the bucket, making the sealing cover seat 20 more convenient to use.

[0053] Specifically, the included angle B between the sealing panel 22 and the sealing base plate 21 is greater than or equal to 45° and less than or equal to 60°. The included angle B between the sealing panel 22 and the sealing base plate 21 can be 45°, 46°, 47°, 48°, 49°, 50°, 51°, 52°, 53°, 54°, 55°, 56°, 57°, 58°, 59°, or 60°. Preferably, the included angle between the sealing panel 22 and the sealing base plate 21 is 55°.

[0054] In this embodiment of the application, please refer to Figures 5 and 6. The sealing panel 22 extends out of the sealing side plate 23, and the extended portion of the sealing panel 22 is bent toward the first side plate 12 to form a third flange edge 221. The third flange edge 221 is fitted and sealed to the first side plate 12.

[0055] The top of the sealing panel 22 extends beyond the sealing side plate 23. The extended portion of the sealing panel 22 is bent towards the first side plate 12 to form a third flange edge 221. The third flange edge 221 is fitted and sealed to the first side plate 12, preventing material from escaping from the gap between the sealing cover body 20 and the first side plate 12, thus further improving the sealing performance of the sealing cover body 20. The third flange edge 221 also serves as a limit to prevent the sealing cover body 20 from being over-inserted into the cleaning port 14.

[0056] Specifically, the third flange edge 221 and the first side plate 12 can be sealed together by sealing felt, sealing strip or other means.

[0057] In this embodiment, referring to Figures 5 and 6, the end of the first side plate 12 near the cleaning port 14 is bent towards the interior of the cleaning port 14 to form a fourth flange edge 121, which is fitted to the sealing panel 22. By fitting the fourth flange edge 121 to the sealing panel 22, the fourth flange edge 121 and the sealing panel 22 are in surface contact, preventing material from escaping from the gap between the sealing cover body 20 and the first side plate 12, thereby further improving the sealing performance of the sealing cover body 20.

[0058] In this embodiment of the application, referring to Figure 3, the sealing cover seat 20 further includes a support component 24. The support component 24 is located between the two sealing side plates 23 and is connected between the sealing base plate 21 and the sealing panel 22. By setting the support component 24 to connect the sealing base plate 21 and the sealing panel 22, the structural strength of the sealing cover seat 20 is improved, making the structure of the sealing cover seat 20 more stable.

[0059] In this embodiment, referring to Figure 3, the support assembly 24 includes a support plate 241 located between the two sealing side plates 23. The support plate 241 is erected on the sealing base plate 21, and is connected to the side of the sealing panel 22 closest to the sealing base plate 21. By providing the support plate 241 to support the sealing panel 22 between the sealing base plate 21, the structural stability of the sealing cover seat 20 is improved. Furthermore, the support plate 241 is arranged parallel to the sealing side plates 23, resulting in more uniform force distribution.

[0060] It is understood that the number of support plates 241 can be one, two or more. As shown in Figure 3, the number of support plates 241 is two. The number of support plates 241 can be flexibly adjusted according to actual needs. This application does not limit the number of support plates 241.

[0061] In this embodiment of the application, please refer to Figure 3. The bottom end of the support plate 241 is provided with an overlap notch 2411 on the side near the sealing panel 22. The overlap notch 2411 matches the shape of the sealing base plate 21, and the sealing base plate 21 is inserted into the overlap notch 2411.

[0062] The lap notch 2411 matches the shape of the sealing base plate 21; that is, the depth of the lap notch 2411 is equal to the thickness of the sealing base plate 21, and the width of the lap notch 2411 is equal to the width of the sealing base plate 21. The sealing base plate 21 is inserted into the lap notch 2411. By setting the lap notch 2411, the contact area between the sealing base plate 21 and the support plate 241 is increased, making the connection between the sealing base plate 21 and the support plate 241 more stable and reliable. Furthermore, by setting the lap notch 2411 for welding positioning, it is easier to weld the sealing base plate 21 and the support plate 241 together.

[0063] In this embodiment of the application, please refer to Figure 3. The support component 24 includes a support handle 242, which is connected between two sealing side plates 23. By setting the support handle 242 to be connected between the two sealing side plates 23, the structure of the sealing cover body 20 is made more stable. In addition, the support handle 242 can be used as a handle, which makes it convenient for the operator to hold it to pull the sealing cover body 20 out of the cleaning port 14 to open the cleaning port 14.

[0064] In this embodiment of the application, please refer to Figure 7. A connecting nut 15 is provided on the side of the first flange edge 131 that is away from the corresponding second flange edge 231. The sealing cover seat 20 also includes a fastener 40, which passes through the second flange edge 231 and the first flange edge 131 in sequence and is threadedly connected to the connecting nut 15.

[0065] The connecting nut 15 is located on the side of the first flange edge 131 opposite to the corresponding second flange edge 231. The fastener 40 passes sequentially through the second flange edge 231 and the first flange edge 131 and is threadedly connected to the connecting nut 15, enabling a detachable connection between the first flange edge 131 and the second flange edge 231. The threaded connection facilitates disassembly. The threaded connection also provides self-locking, making the connection between the first flange edge 131 and the second flange edge 231 tighter and more reliable. Furthermore, the detachable connection via the fastener 40 prevents the sliding and jamming caused by deformation of the insert plate due to repeated pulling and pulling.

[0066] Specifically, the fastener 40 includes a connected screw 41 and a screw handle 42. The screw 41 passes through the second flange edge 231 and the first flange edge 131 in sequence and is threadedly connected to the connecting nut 15. The screw handle 42 is located on the side of the screw 41 away from the connecting nut 15. By setting the screw handle 42, it is convenient for operators to tighten and loosen the fastener 40 for installation and removal, making the use of the fastener 40 more convenient.

[0067] The number of fasteners 40 corresponding to each first flange edge 131 can be one, two, or more, as shown in Figure 7. The number of fasteners 40 corresponding to each first flange edge 131 is two. The number of fasteners 40 corresponding to each first flange edge 131 can be flexibly adjusted according to actual needs. This application does not limit the number of fasteners 40 corresponding to each first flange edge 131.

[0068] In other embodiments, the first flange edge 131 and the second flange edge 231 can be detachably connected by means of rivets, clips, adhesives, etc.

[0069] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0072] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A hoist, characterized in that, The hoist includes a hoist housing (10), which has a base plate (11), a first side plate (12), and two second side plates (13). The two second side plates (13) are arranged at intervals relative to each other on the base plate (11). The first side plate (12) connects the two second side plates (13) and is spaced apart from the base plate (11) to form a cleaning opening (14). The base plate (11) and the two second side plates (13) both extend beyond the first side plate (12). The protruding portions of the two second side plates (13) are bent away from the cleaning port (14) to form first flange edges (131) respectively; sealing cover body (20), the sealing cover body (20) is inserted into the cleaning port (14) and its bottom surface is attached to the base plate (11), and the two opposite sides of the sealing cover body (20) are provided with second flange edges (231) to be detachably attached to the first flange edges (131) of the two second side plates (13) respectively.

2. The hoist according to claim 1, characterized in that, The two sides of the sealing cover seat (20) are both set as lateral contact planes, so as to be respectively attached to the inner side of the two second side plates (13).

3. The hoist according to claim 2, characterized in that, The sealing cover body (20) includes a sealing base plate (21), a sealing panel (22), and two sealing side plates (23). The two sealing side plates (23) are respectively erected at opposite ends of the sealing base plate (21). The sealing panel (22) is erected on the sealing base plate (21) and connected to the two sealing side plates (23). The sealing base plate (21) is designed to be in contact with the substrate (11). Each of the two sealing side plates (23) includes a bonding plate portion (232) and a second flange edge (231) arranged sequentially along the direction from which the sealing cover body (20) exits from the cleaning port (14). The bonding plate portion (232) is provided with the lateral bonding plane. The second flange edge (231) is designed to be bent from the bonding plate portion (232) toward the direction away from the cleaning port (14).

4. The hoist according to claim 3, characterized in that, The lower end of the sealing panel (22) is connected to the inner end of the sealing base plate (21), and the sealing panel (22) is inclined towards the outer end of the sealing base plate (21).

5. The hoist according to claim 3, characterized in that, The sealing panel (22) extends out of the sealing side plate (23), and the extended portion of the sealing panel (22) is bent toward the first side plate (12) to form a third flange edge (221), the third flange edge (221) is fitted and sealed to the first side plate (12); and / or, the end of the first side plate (12) near the cleaning port (14) is bent toward the interior of the cleaning port (14) to form a fourth flange edge (121), the fourth flange edge (121) is fitted to the sealing panel (22).

6. The hoist according to claim 3, characterized in that, The sealing cover body (20) also includes a support assembly (24), which is located between the two sealing side plates (23) and is connected between the sealing panel (22) and the sealing base plate (21).

7. The hoist according to claim 6, characterized in that, The support assembly (24) includes a support plate (241) located between the two sealing side plates (23), the support plate (241) being erected on the sealing base plate (21), and the support plate (241) being connected to the sealing panel (22) on the side near the sealing base plate (21).

8. The hoist according to claim 7, characterized in that, The bottom end of the support plate (241) is provided with an overlap notch (2411) on the side near the sealing panel (22). The overlap notch (2411) matches the shape of the sealing base plate (21), and the sealing base plate (21) is inserted into the overlap notch (2411).

9. The hoist according to claim 6, characterized in that, The support assembly (24) includes a support handle (242) connected between the two sealing side plates (23).

10. The hoist according to any one of claims 1 to 9, characterized in that, A connecting nut (15) is provided on the side of the first flange edge (131) away from the corresponding second flange edge (231). The sealing cover body (20) also includes a fastener (40), which passes through the second flange edge (231) and the first flange edge (131) in sequence and is threadedly connected to the connecting nut (15).

Images