Covering part and engineering machinery

Abstract

The utility model relates to the technical field of engineering machinery, in particular to a covering part and engineering machinery. The embodiment of the utility model provides a covering part and engineering machinery. The device comprises a covering part body which is provided with an access hole; the top cover plate is used for sealing the access hole; the magnetic attraction assembly is connected with at least one of the covering part body and the top cover plate so that the top cover plate can be attracted to the covering part body. According to the device, the top cover plate is attracted to the covering part body through the magnetic attraction assembly, a fastener does not need to be used, and the effect that mounting and dismounting are convenient and fast is achieved.

Description

Technical Field

[0001] This application relates to the field of engineering machinery technology, and in particular to a body panel and engineering machinery. Background Technology

[0002] Construction machinery, such as loaders, bulldozers, and mining hydraulic tunneling rigs, typically operate in harsh environments, requiring protective covers for their critical components. Therefore, protective covers are an essential part of construction machinery.

[0003] The cover body typically has an access port, which is closed by a top cover plate. In the prior art, bolts are usually used to connect and fix the top cover plate to the cover body. However, using bolted connections requires disassembling parts when opening and closing, which is time-consuming. Utility Model Content

[0004] This application provides a cover and engineering machinery to achieve convenient installation.

[0005] In a first aspect, embodiments of this application provide a cover, including:

[0006] A cover body, wherein an inspection port is provided on the cover body;

[0007] A top cover plate, the top cover plate being used to close the inspection port;

[0008] A magnetic attachment assembly is connected to at least one of the cover body and the top cover to attach the top cover to the cover body.

[0009] In one possible implementation, the magnetic suction assembly includes at least one first magnetic suction element and a second magnetic suction element. The first magnetic suction element is disposed on the cover body, and the second magnetic suction element is disposed on the top cover plate. When the top cover plate closes the access port, the first magnetic suction element and the second magnetic suction element are attracted to each other in a corresponding manner.

[0010] In one possible implementation, the magnetic suction assembly includes a positioning member with a mounting groove corresponding to a first magnetic suction member. The first magnetic suction member is disposed in the corresponding mounting groove, and the positioning member is connected to the cover body.

[0011] In one possible implementation, a pad is further included, on which at least one positioning hole is provided, and the second magnetic member is disposed corresponding to the positioning hole and passes through the positioning hole to be attracted to the first magnetic member.

[0012] In one possible implementation, the second magnetic element is clearance-fitted with the positioning hole.

[0013] In one possible implementation, the cover body is provided with a shielding cavity, and the side wall of the shielding cavity is provided with at least one opening communicating with the shielding cavity. The cover body is hinged with a door panel for opening or closing the opening.

[0014] In one possible implementation, a drive member is also included, which is located within the shielding cavity and connected to the cavity wall and the door panel, respectively. The drive member is configured to drive the door panel to rotate relative to the cover body to open or close the opening.

[0015] In one possible implementation, a fixing part is provided on the cavity wall of the shielding cavity, and a connector is provided on the door panel. The connector has an mounting part at one end away from the door panel. The mounting part extends into the shielding cavity and is hinged to the fixing part and the driving member, respectively.

[0016] In one possible implementation, the fixing part includes two opposing fixing plates, the mounting part is at least partially inserted between the two fixing plates, and is connected to the fixing plates by a connecting pin.

[0017] Secondly, embodiments of this application provide an engineering machinery, including: a machine body and a cover, wherein the cover is disposed on the machine body.

[0018] This application provides a cover, which includes a cover body, a top cover plate, and a magnetic closure assembly. The cover body has an access port, and the top cover plate and the cover body are connected by the magnetic closure assembly. This avoids the need to disassemble and install several sets of fasteners on the top access port when opening and closing the access port, thus achieving the effect of easy installation. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] Figure 1 A perspective view of the cover provided for this application;

[0021] Figure 2 A structural schematic diagram of the cover provided in this application from another perspective;

[0022] Figure 3 Provided for this application Figure 2 Schematic diagram of a partial structure of the door panel of the covering component. Figure I ;

[0023] Figure 4 Provided for this application Figure 2Schematic diagram of the partial structure of the fixing part of the cover. Figure II ;

[0024] Figure 5 Provided for this application Figure 2 Schematic diagram of the partial structure of the top cover plate of the cover component. Figure III ;

[0025] Figure 6 A schematic diagram of the magnetic absorbing assembly of the cover provided in this application;

[0026] Figure 7 A schematic diagram of the structure of the connector for the cover provided in this application.

[0027] Explanation of reference numerals in the attached figures

[0028] 100 - Cover body; 110 - Inspection port; 120 - Positioning element; 121 - Mounting slot;

[0029] 200-Top cover plate;

[0030] 300 - Magnetic assembly; 310 - First magnetic component; 320 - Second magnetic component;

[0031] 400 - Pad; 410 - Positioning hole;

[0032] 500-Shielding cavity;

[0033] 600-Door panel;

[0034] 700-Driver;

[0035] 800 - Fixed part;

[0036] 900 - Connector; 910 - Mounting part;

[0037] 10-Connecting pin.

[0038] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0040] Figure 1 This is a top view of the cover provided in this application.

[0041] In the existing technology, the top cover plate and the cover body are connected by bolts, which presents complex technical problems in terms of installation or disassembly.

[0042] The present application provides a cover that solves the technical problem that opening or closing the access panel requires disassembling or installing fasteners, which makes installation or disassembly inconvenient, by using a magnetic component to connect the top cover plate and the cover body.

[0043] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0044] Figure 1 A top view of a cover structure provided in this application is shown below. Figure 1 As shown, the cover includes a cover body 100, a top cover plate 200, and a magnetic assembly 300. The cover body 100 is provided with an access port 110. The magnetic assembly 300 is connected to at least one of the cover body 100 and the top cover plate 200 to attract the top cover plate 200 onto the cover body 100, thereby closing the access port 110.

[0045] Furthermore, both the cover body 100 and the top cover 200 are made of metal materials, such as steel.

[0046] Furthermore, the access port 110 is formed by an opening at the top of the cover body 100 for performing maintenance operations from the top. The access port 110 may be rectangular, with rounded corners at its four corners to reduce the presence of sharp edges and lower the risk of injury.

[0047] Furthermore, the top cover plate 200 is not fixedly disposed on the cover body 100, but is detachably connected to the cover body 100 via a magnetic attachment assembly 300. For example, the magnetic attachment assembly 300 may be disposed on the top cover plate 200 or on the cover body 100.

[0048] Furthermore, the magnetic component 300 can be fixed by means of adhesives, mechanical fixation, or embedded design. Specifically, strong adhesives, such as epoxy resin glue or polyurethane glue, can be used to firmly bond the magnetic component 300 to the steel; or mechanical means such as screws, bolts, or clamps can be used to fix the magnetic component 300 to the steel; or a groove or hole can be designed in the steel to embed the magnetic component 300 therein.

[0049] For example, the cover includes a cover body 100, a top cover 200, and a magnetic assembly 300. The top of the cover body 100 has a rectangular access port 110. The magnetic assembly 300 is attached to the lower surface of the cover body 100 with a strong adhesive. The magnetic assembly 300 attaches the top cover 200 to the upper surface of the cover body 100 through magnetic attraction.

[0050] Through the above-mentioned technical means, the top cover 200 does not require fasteners and can be installed on the cover body 100 through magnetic adsorption, thus achieving the beneficial effect of easy opening and closing and installation of the top cover 200.

[0051] In some embodiments, the magnetic suction assembly 300 includes at least one first magnetic suction member 310 and a second magnetic suction member 320. The first magnetic suction member 310 is disposed on the cover body 100, and the second magnetic suction member 320 is disposed on the top cover plate 200. When the top cover plate 200 closes the inspection port 110, the first magnetic suction member 310 and the second magnetic suction member 320 are attracted to each other in a one-to-one manner.

[0052] The first magnetic 310 and the second magnetic 320 have opposite magnetic properties on adjacent sides, allowing them to attract each other. Furthermore, both the top cover plate 200 and the cover body 100 are equipped with magnetic components to further enhance the magnetic force, making the top cover plate 200 more firmly attached to the cover body 100.

[0053] Furthermore, the number and shape of the first magnetic 310 and the second magnetic 320 can be the same or different, and the number of the second magnetic 320 can be selected according to the external size of the top cover plate 200.

[0054] For example, the number and shape of the first magnetic member 310 and the second magnetic member 320 are the same. The top cover plate 200 is rectangular. The number of the first magnetic member 310 and the second magnetic member 320 can be four each. The four second magnetic members 320 are respectively arranged around the rectangular top cover plate 200. The first magnetic member 310 and the second magnetic member 320 are respectively arranged on the lower surface of the cover body 100, so that the first magnetic member 310 and the second magnetic member 320 are attracted to each other.

[0055] The number and shape of the first magnetic element 310 and the second magnetic element 320 can also be different. The first magnetic element 310 can be rectangular, and the first magnetic element 310 is provided around the inspection port 110. The second magnetic element 320 can be cylindrical, and several second magnetic elements 320 are arranged on the top cover plate 200, corresponding to the first magnetic element 310, to achieve adsorption.

[0056] In some embodiments, the magnetic suction assembly 300 includes a positioning member 120, the positioning member 120 is provided with a mounting groove 121, the mounting groove 121 corresponds one-to-one with the first magnetic suction member 310, the first magnetic suction member 310 is disposed in the corresponding mounting groove 121, and the positioning member 120 is connected to the cover body 100.

[0057] When the cover body 100 is made of thin steel sheet, it is not possible to directly create a groove on the cover body 100 to embed the first magnetic member 310 therein. Therefore, the magnetic assembly 300 includes a positioning member 120, which is provided with a mounting groove 121. The first magnetic member 310 is disposed in the mounting groove 121, and the positioning member 120 is used to connect the first magnetic member 310 to the cover body 100.

[0058] Furthermore, the positioning member 120 may be provided with a mounting slot 121 for mounting a first magnetic member 310; the positioning member 120 may be provided with multiple mounting slots 121 for mounting multiple first magnetic members 310.

[0059] Furthermore, the positioning element 120 can be connected to the cover body 100 by welding or other methods.

[0060] Furthermore, when the first magnetic suction member 310 is placed in the mounting groove 121, the first magnetic suction member 310 is flush with or lower than the mounting groove 121, and the side of the positioning member 120 with the mounting groove 121 is connected to the lower surface of the cover body 100, so that the first magnetic suction member 310 is in a sealed space to avoid the influence of harsh external environment.

[0061] Similarly, when the top cover plate 200 is made of thin steel, the second magnetic 320 can also be connected to the top cover plate 200 through the positioning member 120.

[0062] In some embodiments, the cover further includes a pad 400, on which at least one positioning hole 410 is provided, and a second magnetic member 320 is provided corresponding to the positioning hole 410 and passes through the positioning hole 410 to be attracted to the first magnetic member 310.

[0063] Furthermore, the shape and size of the pad 400 are consistent with those of the top cover plate 200. The pad 400 is disposed on the upper surface of the cover body 100. Specifically, the pad 400 can be connected to the upper surface of the cover body 100 by means of adhesive bonding or riveting. The pad 400 can be a rubber plate or a steel plate.

[0064] Furthermore, the shape of the positioning hole 410 may be the same as or different from that of the second magnetic member 320, as long as the condition that the second magnetic member 320 can pass through the positioning hole 410 is met.

[0065] Furthermore, the shape and size of the first magnetic chuck 310 can be the same as that of the second magnetic chuck 320 to reduce processing costs. Both the first magnetic chuck 310 and the second magnetic chuck 320 are configured to correspond to the positioning holes 410 of the pad 400.

[0066] Furthermore, a handle may be provided on the top cover plate 200 to facilitate lifting the top cover plate 200.

[0067] For example, the cover includes a cover body 100, a top cover plate 200, a magnetic absorbing assembly 300, and a pad plate 400. The cover body 100 is provided with an access port 110, the magnetic absorbing assembly 300 includes a first magnetic absorbing member 310, a second magnetic absorbing member 320, and a positioning member 120, and the pad plate 400 is provided with a positioning hole 410.

[0068] The first magnetic attractor 310 and the second magnetic attractor 320 are cylindrical magnets of the same specifications. The positioning member 120 can be cylindrical and has a mounting groove 121. The mounting groove 121 can be a circular countersunk hole. The cylindrical magnet is installed in the circular countersunk hole. The height of the cylindrical magnet is the same as or less than the depth of the circular countersunk hole. The positioning member 120, which is equipped with the first magnetic 310, has its end face with a circular countersunk hole connected to the lower surface of the cover body 100, so that the first magnetic 310 is in a sealed environment. The positioning member 120, which is equipped with the second magnetic 320, has its end face with a circular countersunk hole connected to the lower surface of the top cover plate 200, so that the second magnetic 320 is in a sealed environment. The pad plate 400 is set on the upper surface of the cover body 100. The pad plate 400 is provided with a positioning hole 410. The first magnetic 310 and the second magnetic 320 are both set to correspond to the positioning hole 410 of the pad plate 400. The positioning member 120 equipped with the second magnetic 320 can pass through the positioning hole 410 and be attracted to the first magnetic 310, so that the top cover plate 200 is installed on the cover body 100.

[0069] The positioning hole 410 on the pad 400 plays a role in positioning and limiting the top cover 200, so as to prevent the top cover 200 from being misaligned with the access port 110 due to road bumps in harsh environments, and to prevent the top cover 200 from failing to close the access port 110.

[0070] In addition, due to the harsh environment, there may be water accumulation near the inspection port 110. The pad 400 can block the water accumulation around the inspection port 110 to a certain extent and play a certain role in waterproofing.

[0071] In some embodiments, the second magnetic member 320 is clearance-fitted with the positioning hole 410.

[0072] For example, the positioning hole 410 has the same shape as the second magnetic member 320, but its size is larger than that of the second magnetic member 320, so that the positioning hole 410 and the second magnetic member 320 achieve a clearance fit.

[0073] The clearance fit allows for a certain gap between the positioning hole 410 and the second magnetic chuck 320, making assembly and disassembly simpler and faster, and reducing the stringent requirements for assembly precision. Secondly, the clearance fit effectively compensates for dimensional changes caused by thermal expansion or contraction, preventing the second magnetic chuck 320 from jamming in environments with varying temperatures. This not only reduces manufacturing costs but also decreases wear and vibration, improving the stability and service life of the mechanical equipment.

[0074] In some embodiments, the cover body 100 is provided with a shielding cavity 500, and the side wall of the shielding cavity 500 is provided with at least one opening communicating with the shielding cavity 500. The cover body 100 is hinged to a door panel 600 for opening or closing the opening.

[0075] The body of the cover 100 includes a frame and a skin. The skin is made of thin steel sheet processed and welded. The skin is attached to the frame to form a shielding cavity 500.

[0076] In some embodiments, the cover body 100 further includes a drive member 700, which is located within the shielding cavity 500 and connected to the cavity wall of the shielding cavity 500 and the door panel 600, respectively. The drive member 700 is configured to drive the door panel 600 to rotate relative to the cover body 100 to open or close the opening.

[0077] The drive component 700 can be an electric push rod, a cylinder, or a gas spring.

[0078] For example, the driving component 700 may be a gas spring located inside the shielding cavity 500. Specifically, the frame inside the shielding cavity 500 is provided with mounting holes, one end of the gas spring is connected to the mounting holes on the frame, and the other end is connected to the door panel 600; the door panel 600 is hinged to the cover body 100.

[0079] When the door panel 600 is closed, the gas spring is compressed, and the gas inside the gas spring is compressed, causing the door panel 600 to fit against the side wall of the cover cavity 500. When an operator applies external force to open the door panel 600, the gas spring begins to extend. Due to the air pressure inside the gas spring, it generates an outward thrust, assisting in opening the door panel 600. The door panel 600 rotates around the hinge point with the cover body 100. When the door panel 600 is fully open, the gas spring reaches its maximum extension. The torque generated by the gas spring is greater than the gravitational torque of the door panel 600, keeping the door panel 600 in the open position. When closing the door panel 600, an external force opposite to the opening direction needs to be applied. This external force overcomes the thrust of the gas spring, causing the door panel 600 to rotate around the hinge point with the cover body 100 until the door panel 600 is closed.

[0080] The gas spring can assist in opening or closing the door panel 600, reducing the burden on the operator and making the movement of the door panel 600 smoother, thus enhancing stability.

[0081] In some embodiments, a fixing part 800 is provided on the cavity wall of the shielding cavity 500, and a connector 900 is provided on the door panel 600. The connector 900 has a mounting part 910 at one end away from the door panel 600. The mounting part 910 extends into the shielding cavity 500 and is hinged to the fixing part 800 and the driving part 700 respectively.

[0082] The fixing part 800 can be set on the top of the side wall of the shielding cavity 500. The top of the side wall of the shielding cavity 500 is provided with a frame. The frame can be formed by welding together components such as square tubes, angle steel, and bent plates. The frame located on the top of the side wall of the shielding cavity 500 can be a bent plate or an angle steel. The fixing part 800 is set on the inner side of the bent plate or angle steel.

[0083] The connector 900 includes a first connecting plate, a second connecting plate, and a third connecting plate. The first connecting plate is used to connect to the door panel 600, and the connection method can be welding. The second connecting plate is provided with a mounting part 910, which is used to hinge with the fixing part 800 and the gas spring. The third connecting plate is used to connect the first mounting plate and the second connecting plate. The first connecting plate, the second connecting plate, and the third connecting plate can be integrally formed.

[0084] Furthermore, the connector 900 may also include a fourth connecting plate, which is connected to the end of the second connecting plate opposite to the third connecting plate, and the fourth connecting plate is configured as a raised limiting plate.

[0085] During the closing process of the door panel 600, the gas spring is compressed, generating elastic force. When the line connecting the two ends of the gas spring is above the hinge point between the connector 900 and the fixing part 800, the elastic force of the gas spring generates a torque that causes the door panel 600 to rotate inward toward the blocking cavity 500, with this hinge point as the fulcrum. When the door panel 600 is closed and fits against the side wall of the blocking cavity 500, the fourth connecting plate contacts the lower surface of the cover body 100, forming a limit. In this embodiment, when the door panel 600 is closed, components such as door locks can be omitted for limiting, which can ensure sufficient maintenance space on the side of the cover body 100 and reduce production costs.

[0086] In some embodiments, the fixing part 800 includes two fixing plates disposed opposite each other, and the mounting part 910 is at least partially inserted between the two fixing plates and connected to the fixing plates by a connecting pin 10.

[0087] The fixing plate can be a square plate. Two square plates are positioned opposite each other on the inner side of a bent plate or angle steel, and are perpendicularly connected to the inner side of the bent plate or angle steel. The gap between the two square plates allows the insertion of a second connecting plate. A first through hole is provided on the square plate, and a second through hole is provided on the mounting portion 910 of the second connecting plate. The first and second through holes are located on the same axis. A connecting pin 10 passes through the first and second through holes, hinged to the second mounting plate at the fixing portion 800. The connecting piece 900 is rotatably connected to the fixing portion 800 via the connecting pin 10, completing the opening or closing action of the door panel 600.

[0088] Furthermore, the connecting pin 10 is provided with an end limiting section, a middle smooth section, and a tail threaded section. The end limiting section and the tail threaded section are located on opposite sides of the two square plates, while the middle smooth section is located on the adjacent side of the two square plates. The diameter of the end limiting section is larger than the first through hole on the square plate, serving as a limiting function on the fixing part 800 side; the diameters of the middle smooth section and the tail threaded section are both smaller than the first through hole on the square plate, providing a clearance fit for easy installation. The tail threaded section connects to the nut, serving as a limiting function on the other side of the fixing part 800.

[0089] Since the fixing part 800 is located inside the bending plate or angle steel, the connecting pin 10 is located inside the shielding cavity 500, avoiding exposure and making it less susceptible to direct impact from harsh external environments.

[0090] This application also provides an engineering machinery, including a machine body and a cover, the cover being disposed on the machine body.

[0091] For example, the engineering machinery can be a mining hydraulic tunneling drilling rig, and the equipment body can be one or more of an engine, hydraulic oil tank, engine radiator, hydraulic radiator, electrical control cabinet, and hydraulic valve group, with the cover installed on the equipment body. In use, the equipment body is installed in a preset position on the engineering machinery, and then the cover is installed on the engineering machinery and fastened with bolts.

[0092] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0093] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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; 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 utility model according to the specific circumstances.

[0094] Finally, it should be noted that other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A cover, characterized in that, include: The cover body (100) is provided with an inspection port (110); the cover body (100) is provided with a shielding cavity (500), and at least one opening communicating with the shielding cavity (500) is provided on the side wall of the shielding cavity (500); the cover body (100) is hinged with a door panel (600) for opening or closing the opening. Top cover plate (200), the top cover plate (200) is used to close the access port (110); A magnetic attachment assembly (300) is connected to at least one of the cover body (100) and the top cover plate (200) to attach the top cover plate (200) to the cover body (100).

2. The cover according to claim 1, characterized in that, The magnetic suction assembly (300) includes at least one first magnetic suction element (310) and a second magnetic suction element (320). The first magnetic suction element (310) is disposed on the cover body (100), and the second magnetic suction element (320) is disposed on the top cover plate (200). When the top cover plate (200) closes the inspection port (110), the first magnetic suction element (310) and the second magnetic suction element (320) are attracted to each other in a corresponding manner.

3. The cover according to claim 2, characterized in that, The magnetic suction assembly (300) includes a positioning member (120), the positioning member (120) is provided with a mounting groove (121), the mounting groove (121) corresponds one-to-one with the first magnetic suction member (310), the first magnetic suction member (310) is disposed in the corresponding mounting groove (121), and the positioning member (120) is connected to the cover body (100).

4. The cover according to claim 2, characterized in that, It also includes a pad (400) having at least one positioning hole (410) on it. The second magnetic attractor (320) is correspondingly disposed with the positioning hole (410) and passes through the positioning hole (410) to attract the first magnetic attractor (310).

5. The cover according to claim 4, characterized in that, The second magnetic suction element (320) is clearance-fitted with the positioning hole (410).

6. The cover according to claim 1, characterized in that, It also includes a drive member (700) located within the shielding cavity (500) and connected to the cavity wall of the shielding cavity (500) and the door panel (600) respectively. The drive member (700) is configured to drive the door panel (600) to rotate relative to the cover body (100) to open or close the opening.

7. The cover according to claim 6, characterized in that, A fixing part (800) is provided on the cavity wall of the shielding cavity (500), and a connector (900) is provided on the door panel (600). The connector (900) has an mounting part (910) at one end away from the door panel (600). The mounting part (910) extends into the shielding cavity (500) and is hinged to the fixing part (800) and the driving member (700) respectively.

8. The cover according to claim 7, characterized in that, The fixing part (800) includes two fixing plates arranged opposite each other, and the mounting part (910) is at least partially inserted between the two fixing plates and connected to the fixing plates by a connecting pin (10).

9. An engineering machinery, characterized in that, It includes a device body and a cover as described in any one of claims 1-8, the cover being disposed on the device body.

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