Belt pulley protection device convenient to clean and maintain

Abstract

The utility model provides a belt pulley protection device convenient to clean and maintain, and belongs to the technical field of belt pulley auxiliary equipment. The belt pulley protection device convenient to clean and maintain comprises a protection cover and a protection panel. The sealing baffle is moved away from the air blowing opening, so that the air blowing opening is exposed, one end of the air blowing pipe penetrates through the air blowing opening, compressed air is guided into the inner side of the protective cover through the air blowing pipe, tobacco leaves in the protective cover are blown out from the discharging opening through the compressed air, and the tobacco leaves falling into the protective cover can be blown out rapidly on the premise that safety is guaranteed. The whole protection device does not need to be disassembled, operation is convenient, efficiency is high, and after the air blowing pipe is taken out, the sealing baffle blocks the air blowing opening.

Description

Technical Field

[0001] The utility model relates to the technical field of pulley auxiliary equipment, and particularly relates to a pulley protection device which is convenient for cleaning and maintenance. Background Art

[0002] Tobacco leaves are annual or perennial herbs of the Solanaceae family. During the production and processing of tobacco leaves, pulleys are frequently used, and a protective cover is usually provided on the outer side of the pulley to protect the pulley.

[0003] During the production of tobacco leaves, tobacco leaves are likely to fall into the protective cover of the pulley. Therefore, it is necessary to clean and maintain it regularly. However, usually, the entire protective cover of the pulley needs to be disassembled, and the fallen tobacco leaves need to be manually taken out, which is not only very troublesome but also has low efficiency. Therefore, it is urgently needed to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pulley protection device which is convenient for cleaning and maintenance in view of the above-mentioned deficiencies of the prior art.

[0005] The utility model provides a pulley protection device which is convenient for cleaning and maintenance. The device is installed on a frame connected to a pulley and comprises a protective cover and a protection panel. The first side and the second side of the protective cover are both provided with openings. The protection panel is used for blocking the opening on the first side of the protective cover. The second side of the protective cover can be connected to the frame. The protective cover comprises two protective bodies arranged up and down, a first connecting body, a second connecting body, a blowing port, a discharge port arranged at the lower part of the second connecting body, and a sealing baffle for sealing the blowing port. The two ends of the first connecting body are respectively connected to the left ends of the two protective bodies. The two ends of the second connecting body are respectively connected to the right ends of the two protective bodies. The blowing port is arranged through the first connecting body for a blow pipe to pass through it and extend into the inner side of the protective cover to introduce compressed air into the inner side of the protective cover, so that the compressed air blows the tobacco leaves in the protective cover out from the discharge port.

[0006] Further, the protective cover further comprises a rotating shaft with one end connected to the first connecting body, and one end of the sealing baffle is rotatably connected to the other end of the rotating shaft.

[0007] Further, a first groove communicated with the blowing port is arranged on the part of the first connecting body above the blowing port, and a second groove communicated with the blowing port is arranged on the part of the first connecting body below the blowing port. One end of the rotating shaft is connected to the part of the first connecting body located in the first groove, and the other end of the sealing baffle rotates into the second groove for sealing the blowing port.

[0008] Further, the second connecting body includes a first substrate with its top connected to the upper protective body and a second substrate with its bottom connected to the lower protective body. The discharge port is arranged between the first substrate and the second substrate. The length of the first substrate is greater than that of the second substrate, and the bottom end of the first substrate and the top end of the second substrate are arranged in a staggered manner, so that the discharge port is a staggered opening.

[0009] Further, the protective panel is detachably connected to the first side surface of the protective cover.

[0010] Further, it further includes a first mounting frame, a first connecting rod, and a second connecting rod. The first mounting frame is connected to the inner side wall of a protective body to form a first accommodating groove with the protective body. A first strip-shaped groove communicating with the first accommodating groove is penetrated through the protective body. One end of the first connecting rod is arranged in the first accommodating groove, and the other end passes through the first strip-shaped groove and extends to one side of the protective body. The other end of the first connecting rod can move along the axis of the first strip-shaped groove. The axis of the first strip-shaped groove is parallel to the axis of the first accommodating groove. One end of the second connecting rod is connected to one side surface of the protective panel close to the protective cover, and the other end of the second connecting rod is inserted into the first accommodating groove and is detachably and fixedly connected to one end of the first connecting rod located in the first accommodating groove.

[0011] Further, it further includes a first magnetic attraction block and a second magnetic attraction block. One end of the first magnetic attraction block is fixedly connected to one end of the first connecting rod located in the first accommodating groove. One end of the second magnetic attraction block is fixedly connected to one side surface of the second connecting rod. The other end of the second magnetic attraction block can be magnetically attracted to the other end of the first magnetic attraction block when the second connecting rod is inserted into the first accommodating groove.

[0012] Further, there are multiple first mounting frames. The number of the first magnetic attraction blocks is the same as the number of the first mounting frames. The number of the second connecting rods is the same as the number of the first mounting frames. The number of the second magnetic attraction blocks is the same as the number of the first magnetic attraction blocks.

[0013] Further, it further includes a hinge. One end of the hinge is detachably connected to the lower protective body, and the other end is detachably connected to the bottom of the protective panel. The first mounting frame is connected to the inner side wall of the upper protective body, and the second connecting rod is connected to the top of the protective panel.

[0014] Further, both the first connecting body and the second connecting body are arc-shaped bodies.

[0015] The belt pulley protection device of the present utility model that is convenient for cleaning and maintenance has the following beneficial effects:

[0016] Remove the sealing baffle from the air blowing port, thereby exposing the air blowing port. Pass one end of the air blowing pipe through the air blowing port. The air blowing pipe introduces compressed air into the inner side of the protective cover, and the compressed air blows the tobacco leaves in the protective cover out from the discharge port. It can quickly blow out the fallen tobacco leaves while ensuring safety, without the need to completely disassemble the protective device, with convenient operation and high efficiency. After removing the air blowing pipe, the sealing baffle seals the air blowing port. Brief Description of the Drawings

[0017] The drawings incorporated into the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention. In these drawings, like reference numerals are used to represent like elements. The drawings in the following description are some embodiments of the present invention, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Structural schematic diagram of a pulley protection device for easy cleaning and maintenance according to an embodiment of the present invention;

[0019] Figure 2 Structural schematic diagram of the protective cover in a pulley protection device for easy cleaning and maintenance according to an embodiment of the present invention;

[0020] Figure 3 In a pulley protection device for easy cleaning and maintenance according to an embodiment of the present invention Figure 2 Enlarged view of part A;

[0021] Figure 4 In a pulley protection device for easy cleaning and maintenance according to an embodiment of the present invention Figure 2 Enlarged view of part B;

[0022] Figure 5 In a pulley protection device for easy cleaning and maintenance according to an embodiment of the present invention Figure 2 Enlarged view of part C;

[0023] Figure 6 Top view when the protective panel and the protective main body are connected in a pulley protection device for easy cleaning and maintenance according to an embodiment of the present invention;

[0024] Figure 7 Structural schematic diagram of the second connecting rod and the second magnetic attraction block installed on the protective panel in a pulley protection device for easy cleaning and maintenance according to an embodiment of the present invention;

[0025] Figure 8 Structural schematic diagram when the second magnetic attraction block is magnetically attracted to the first magnetic attraction block in a pulley protection device for easy cleaning and maintenance according to an embodiment of the present invention;

[0026] Figure 9 This is a side view of the protective panel of a pulley protection device that is convenient for cleaning and maintenance in an embodiment of the present utility model.

[0027] In the figure: 1 - protective cover, 11 - protective main body, 111 - first strip-shaped groove, 12 - first connecting main body, 121 - air blowing port, 122 - first groove, 123 - second groove, 13 - second connecting main body, 131 - discharge port, 132 - first substrate, 133 - second substrate, 14 - sealing baffle, 15 - rotating shaft, 2 - protective panel, 21 - observation through hole, 22 - hinge, 3 - first mounting frame, 4 - first connecting rod, 5 - second connecting rod, 6 - first magnetic attraction block, 7 - second magnetic attraction block. Detailed implementation manners

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be arbitrarily combined with each other.

[0029] Please refer to Figures 1 to 9 A pulley protection device that is convenient for cleaning and maintenance in an embodiment of the present utility model is installed on a frame connected to a pulley, and includes a protective cover 1 and a protective panel 2. Both the first side and the second side of the protective cover 1 are provided with openings. The protective panel 2 is used to block the opening on the first side of the protective cover 1. The second side of the protective cover 1 can be connected to the frame. The protective cover 1 includes two protective main bodies 11 arranged up and down, a first connecting main body 12, a second connecting main body 13, an air blowing port 121, a discharge port 131 arranged at the lower part of the second connecting main body 13, and a sealing baffle 14 for sealing the air blowing port 121. The two ends of the first connecting main body 12 are respectively connected to the left ends of the two protective main bodies 11, and the two ends of the second connecting main body 13 are respectively connected to the right ends of the two protective main bodies 11. The air blowing port 121 is disposed through the first connecting main body 12 for a blow pipe to pass through it and extend into the inner side of the protective cover 1 to introduce compressed air into the inner side of the protective cover 1, so that the compressed air blows the tobacco leaves in the protective cover 1 out from the discharge port 131.

[0030] Here, the first side and the second side of the protective cover 1 are arranged opposite to each other and parallel to each other. The pulley is installed in the middle of the frame. The second side of the protective cover 1 is detachably connected to the part of the frame outside the pulley. The first side of the protective cover 1 is arranged away from the frame. The first side of the protective cover 1 is the front side of the protective cover 1, and the second side of the protective cover 1 is the back side of the protective cover 1; the two protective bodies 11 are arranged up and down. The top end of the first connecting body 12 is connected to the left end of the upper protective body 11, and the bottom end of the first connecting body 12 is connected to the left end of the lower protective body 11. The top end of the second connecting body 13 is connected to the right end of the upper protective body 11, and the bottom end of the second connecting body 13 is connected to the right end of the lower protective body 11; separate the sealing baffle 14 and the air blowing port 121 to expose the air blowing port 121. Pass one end of the air blowing pipe through the air blowing port 121 and extend it into the inside of the protective cover 1. The other end of the air blowing pipe is connected to the compressed air output device. The air blowing pipe introduces compressed air into the inside of the protective cover 1, and blows out the tobacco leaves that fall into the protective cover 1 through the discharge port 131. The blowing efficiency is relatively high. It is not necessary to disassemble the entire protective cover 1 and the protective panel 2. The operation is convenient, the cleaning efficiency is relatively high, and it is convenient to clean and maintain the pulley; after the cleaning is completed, take out the air blowing pipe from the air blowing port 121, and use the sealing baffle 14 to seal the air blowing port 121.

[0031] The protective cover 1 may further include a rotating shaft 15 with one end connected to the first connecting body 12. One end of the sealing baffle 14 is rotatably connected to the other end of the rotating shaft 15.

[0032] Specifically, one end of the sealing baffle 14 is rotatably connected to the rotating shaft 15, so the sealing baffle 14 can rotate around the rotating shaft 15. The sealing baffle 14 rotates by a first preset angle to seal the air blowing port 121, and the sealing baffle 14 rotates by a second preset angle to expose the air blowing port 121.

[0033] The part of the first connecting body 12 above the air blowing port 121 may be provided with a first groove 122 communicating with the air blowing port 121. The part of the first connecting body 12 below the air blowing port 121 is provided with a second groove 123 communicating with the air blowing port 121. One end of the rotating shaft 15 is connected to the part of the first connecting body 12 located in the first groove 122, and the other end of the sealing baffle 14 rotates into the second groove 123 to seal the air blowing port 121.

[0034] Specifically, the first groove 122 and the second groove 123 are arranged vertically. The top end of the sealing baffle 14 extends into the first groove 122 and is connected to the first connecting body 12 through a rotating shaft 15. The bottom end of the sealing baffle 14 extends into the second groove 123, thereby sealing the air blowing port 121. When cleaning and maintenance are required, pull the bottom end of the sealing baffle 14 to make the sealing baffle 14 rotate around the rotating shaft 15, thereby exposing the air blowing port 121, facilitating the insertion of the air blowing pipe through the air blowing port 121 and into the protective cover 1.

[0035] The second connecting body 13 may include a first substrate 132 with its top end connected to the upper protective body 11 and a second substrate 133 with its bottom end connected to the lower protective body 11. The discharge port 131 is arranged between the first substrate 132 and the second substrate 133. The length of the first substrate 132 is greater than that of the second substrate 133. The bottom end of the first substrate 132 and the top end of the second substrate 133 are arranged in a staggered manner, such that the discharge port 131 has a staggered opening.

[0036] Specifically, the first substrate 132 and the second substrate 133 are arranged vertically. The bottom end of the first substrate 132 is arranged at the upper left of the top end of the second substrate 133. Then, the bottom end of the first substrate 132 and the top end of the second substrate 133 are arranged in a staggered manner. The discharge port 131 is arranged at the bottom end of the first substrate 132 and the top end of the second substrate 133, such that the discharge port 131 has a staggered opening. The length of the first substrate 132 is greater than that of the second substrate 133, so that the discharge port 131 is located at the lower part of the second connecting body 13, facilitating the discharge of tobacco leaves from the discharge port 131.

[0037] The protective panel 2 is detachably connected to the first side surface of the protective cover 1.

[0038] Specifically, the protective panel 2 may be provided with an observation through-hole 21. Users can observe the inside of the protective cover 1 through the observation through-hole 21. Since the pressure of the compressed air is relatively high and the mainstream air still flows along the preset direction, only a small part of the air flows out from the observation through-hole 21. Therefore, the compressed air can blow the tobacco leaves falling inside the protective cover 1 to the discharge port 131 and out of the protective cover 1 through the discharge port 131. The observation through-hole 21 facilitates the observation of the operation of the equipment.

[0039] As a pulley protection device facilitating cleaning and maintenance in this embodiment, it may further include a first mounting frame 3, a first connecting rod 4, and a second connecting rod 5. The first mounting frame 3 is connected to the inner side wall of a protection main body 11 to form a first accommodating groove 31 with the protection main body 11. A first strip-shaped groove 111 communicating with the first accommodating groove 31 is provided through the protection main body 11. One end of the first connecting rod 4 is disposed in the first accommodating groove 31, and the other end passes through the first strip-shaped groove 111 and extends to one side of the protection main body 11. The other end of the first connecting rod 4 can move along the axis of the first strip-shaped groove 111, and the axis of the first strip-shaped groove 111 is parallel to the axis of the first accommodating groove 31. The second connecting rod 5 is connected to one side surface of the protection panel 2 close to the protective cover. The other end of the second connecting rod 5 is inserted into the first accommodating groove 31 and is detachably and fixedly connected to one end of the first connecting rod 4 located in the first accommodating groove 31.

[0040] As a pulley protection device facilitating cleaning and maintenance in this embodiment, it may further include a first magnetic attraction block 6 and a second magnetic attraction block 7. One end of the first magnetic attraction block 6 is fixedly connected to one end of the first connecting rod 4 located in the first accommodating groove 31. One end of the second magnetic attraction block 7 is fixedly connected to one side surface of the second connecting rod 5. The other end of the second magnetic attraction block 7 can be magnetically attracted to the other end of the first magnetic attraction block 6 when the second connecting rod 5 is inserted into the first accommodating groove 31.

[0041] Specifically, both the first magnetic attraction block 6 and the second magnetic attraction block 7 can be magnets.

[0042] There can be multiple first mounting frames 3. The number of the first magnetic attraction blocks 6 is the same as the number of the first mounting frames 3. The number of the second connecting rods 5 is the same as the number of the first mounting frames 3. The number of the second magnetic attraction blocks 7 is the same as the number of the first magnetic attraction blocks 6.

[0043] Specifically, first mounting frames 3 can be provided on the inner walls of the top and bottom plates of the protection main body 11, and a first strip-shaped groove 111 can be provided on the outer wall of the protection main body 11 on one side of the first mounting frame 3. One end of the first connecting rod 4 is arranged on one side inside the first mounting frame 3, and the other end of the first connecting rod 4 penetrates through the first strip-shaped groove 111 and extends to the outside of the protection main body 11. A first magnetic attraction block 6 is bonded to one end of the first connecting rod 4 located inside the first mounting frame 3. Second connecting rods 5 can be fixedly provided on the outer walls of the top and bottom of the protection panel 2. One end of the second connecting rod 5 is fixedly connected to one side surface of the protection panel 2 close to the protection cover 1, and a second magnetic attraction block 7 is bonded to the other end of the second connecting rod 5. The second connecting rod 5 is inserted into the first accommodating groove 31, and the second magnetic attraction block 7 is magnetically attracted to the first magnetic attraction block 6. When it is necessary to perform maintenance on the pulley, push the first connecting rod 4 to one side to move it in a direction away from the second connecting rod 5, so that the first magnetic attraction block 6 is separated from the second magnetic attraction block 7, and then remove the protection panel 2 from the protection main body 11 to separate the first connecting rod 4 from the second connecting rod 5, and the protection main body 11 can be opened. This design improves the convenience of disassembling and assembling the pulley protection cover 1, thereby facilitating the maintenance of the pulley.

[0044] As a pulley protection device that is convenient for cleaning and maintenance in this embodiment, it can further include a hinge 22. One end of the hinge 22 is detachably connected to the lower protection main body 11, and the other end is detachably connected to the bottom of the protection panel 2. The first mounting frame 3 is connected to the inner side wall of the upper protection main body 11, and the second connecting rod 5 is connected to the top of the protection panel 2.

[0045] Both the first connecting body 12 and the second connecting body 13 can be arc-shaped bodies.

[0046] Specifically, both the first connecting body 12 and the second connecting body 13 can be circular arc bodies. The first connecting body 12 is arranged at one end of the protection main body 11, the second connecting body 13 is arranged at the other end of the protection main body 11, and a discharge port 131 is arranged at the bottom of the second connecting body 13. An air blowing port 121 is provided on the first connecting body 12, and a first groove 122 and a second groove 123 are respectively provided at the top and bottom ends of the air blowing port 121.

[0047] Specifically, during cleaning and maintenance, since the discharge port 131 is staggeredly arranged at the bottom of the second connection body 13, the sealing baffle 14 is pushed to rotate around the rotating shaft 15 to open the air blowing port 121. An external air blowing pipe is inserted into the air blowing port 121, and compressed air is introduced into the protective cover 1 through the air blowing pipe to blow out the tobacco leaves that have fallen into the protective cover 1. This design can quickly remove the fallen tobacco leaves while ensuring safety, without the need to completely disassemble the pulley protective cover 1, which is convenient to operate and highly efficient. After the air blowing pipe is removed, the sealing baffle 14 returns to the vertical state under the action of gravity and inertia to block the air blowing port 121.

[0048] The content described above can be implemented alone or in various combinations, and these variant methods are all within the protection scope of the present utility model.

[0049] It should be noted that in the description of the present application, the terms "upper end", "lower end", and "bottom end" indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. They are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A pulley protection device that is convenient for cleaning and maintenance, and is installed on the frame connected to the pulley, characterized in that: It includes a protective cover (1) and a protective panel (2). Both the first side and the second side of the protective cover (1) are open. The protective panel (2) is used to block the opening on the first side of the protective cover (1). The second side of the protective cover (1) can be connected to the machine frame. The protective cover (1) includes two protective bodies (11) arranged up and down, a first connecting body (12), a second connecting body (13), a blowing port (121), a discharge port (131) arranged at the lower part of the second connecting body (13), and a sealing baffle (14) used to seal the blowing port (121). Both ends of the first connecting body (12) are respectively connected to the left ends of the two protective bodies (11). Both ends of the second connecting body (13) are respectively connected to the right ends of the two protective bodies (11). The blowing port (121) is arranged through the first connecting body (12) for a blow pipe to pass through it and extend into the inner side of the protective cover (1) to introduce compressed air into the inner side of the protective cover (1), so that the compressed air blows the tobacco leaves in the protective cover (1) out from the discharge port (131).

2. The pulley protection device convenient for cleaning and maintenance according to claim 1, wherein: The protective cover (1) further includes a rotating shaft (15) with one end connected to the first connecting body (12). One end of the sealing baffle (14) is rotatably connected to the other end of the rotating shaft (15).

3. The pulley protection device facilitating cleaning and maintenance according to claim 2, wherein: A first groove (122) communicating with the blowing port (121) is arranged on the part of the first connecting body (12) above the blowing port (121). A second groove (123) communicating with the blowing port (121) is arranged on the part of the first connecting body (12) below the blowing port (121). One end of the rotating shaft (15) is connected to the part of the first connecting body (12) located in the first groove (122). The other end of the sealing baffle (14) rotates into the second groove (123) to seal the blowing port (121).

4. A pulley protection device facilitating cleaning and maintenance according to claim 1 or 2 or 3, characterized in that: The second connecting body (13) includes a first substrate (132) with its top end connected to the upper protective body (11) and a second substrate (133) with its bottom end connected to the lower protective body (11). The discharge port (131) is arranged between the first substrate (132) and the second substrate (133). The length of the first substrate (132) is greater than that of the second substrate (133). The bottom end of the first substrate (132) and the top end of the second substrate (133) are arranged in a staggered manner, so that the discharge port (131) is a staggered opening.

5. A pulley protection device that is convenient for cleaning and maintenance according to claim 1 or 2 or 3, characterized in that: The protective panel (2) is detachably connected to the first side of the protective cover (1).

6. The pulley protection device convenient for cleaning and maintenance according to claim 4, characterized in that: It further includes a first mounting frame (3), a first connecting rod (4), and a second connecting rod (5); the first mounting frame (3) is connected to the inner sidewall of a protection main body (11) for enclosing a first accommodation groove (31) with the protection main body (11). A first strip-shaped groove (111) communicating with the first accommodation groove (31) is provided through the protection main body (11). One end of the first connecting rod (4) is arranged in the first accommodation groove (31), and the other end passes through the first strip-shaped groove (111) and extends to one side of the protection main body (11). The other end of the first connecting rod (4) can move along the axis of the first strip-shaped groove (111), and the axis of the first strip-shaped groove (111) is parallel to the axis of the first accommodation groove (31). One end of the second connecting rod (5) is connected to one side surface of the protection panel (2) close to the protection cover (1), and the other end of the second connecting rod (5) is inserted into the first accommodation groove (31) and detachably and fixedly connected to one end of the first connecting rod (4) located in the first accommodation groove (31).

7. The pulley protection device facilitating cleaning and maintenance according to claim 6, characterized in that: It further includes a first magnetic attraction block (6) and a second magnetic attraction block (7). One end of the first magnetic attraction block (6) is fixedly connected to one end of the first connecting rod (4) located in the first accommodation groove (31). One end of the second magnetic attraction block (7) is fixedly connected to one side surface of the second connecting rod (5), and the other end of the second magnetic attraction block (7) can be magnetically attracted to the other end of the first magnetic attraction block (6) when the second connecting rod (5) is inserted into the first accommodation groove (31).

8. The pulley protection device facilitating cleaning and maintenance according to claim 7, characterized in that: There are multiple first mounting frames (3). The number of the first magnetic attraction blocks (6) is the same as the number of the first mounting frames (3). The number of the second connecting rods (5) is the same as the number of the first mounting frames (3). The number of the second magnetic attraction blocks (7) is the same as the number of the first magnetic attraction blocks (6).

9. The pulley protection device facilitating cleaning and maintenance according to claim 7, wherein: It further includes a hinge (22). One end of the hinge (22) is detachably connected to the lower protection main body (11), and the other end is detachably connected to the bottom of the protection panel (2). The first mounting frame (3) is connected to the inner sidewall of the upper protection main body (11), and the second connecting rod (5) is connected to the top of the protection panel (2).

10. A pulley protection device facilitating cleaning and maintenance as described in claim 1 or 2 or 3, characterized in that: Both the first connecting main body (12) and the second connecting main body (13) are arc-shaped main bodies.

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