Sealing device for dust collection barrel

Abstract

The invention discloses a dust collection barrel sealing device, and relates to the technical field of electric dust removal equipment. Comprising a machine body and a dust collection bin arranged in the machine body. The dust collection unit comprises two groups of fixed seats and a lifting handle, the two groups of fixed seats are arranged in the dust collection bin in a mirror image manner, the dust collection barrel is arranged in the two groups of fixed seats, the lifting handle is rotationally connected to the outer side of the dust collection barrel through a rotating rod, and the connecting assembly is arranged on the lifting handle and matched with the fixed seats; the opening and closing unit comprises a fixing rod transversely arranged in the dust collecting barrel, a connecting rod longitudinally arranged in the dust collecting barrel and an opening and closing assembly arranged outside the connecting rod. According to the device, the dust hopper can be quickly positioned through the dust collection unit, so that the barrel opening of the dust collection barrel is accurately aligned with the dust outlet of the dust hopper, dust is prevented from being scattered out, and the barrel opening can be closed through the opening and closing unit when the dust collection barrel is moved, so that dust leakage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of electric dust removal equipment, and in particular to a dust collecting bucket sealing device. Background Art

[0002] In coal-fired power plants, electrostatic precipitators are used to remove a large amount of dust and particulate matter generated during the combustion process and reduce pollutant emissions in flue gas. The dust accumulated on the dust collecting electrodes in the electrostatic precipitator will fall off from the electrode surface through mechanical vibration or knocking and fall into the ash hopper;

[0003] In order to facilitate the centralized treatment of accumulated dust, a movable dust collecting bucket is provided directly below the ash hopper to collect the detached dust. The existing dust collecting bucket cannot accurately locate the position of the ash outlet of the ash hopper, and there is a risk of dust spilling when the dust collecting bucket is moved. Summary of the invention

[0004] In view of the above problems existing in the existing dust collecting bucket sealing device, the present invention is proposed.

[0005] Therefore, the present invention provides a dust bucket sealing device, the purpose of which is to solve the problem that the existing dust bucket cannot accurately locate the position of the ash hopper, and there is a risk of dust spilling when the dust bucket is moved.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a dust bucket sealing device, comprising an installation unit, comprising a body, and a dust collecting bin arranged in the body; a dust collecting unit, comprising two groups of fixed seats and a lifting handle, the two groups of fixed seats are mirror-imaged in the dust collecting bin, a dust bucket arranged in the two groups of fixed seats, the lifting handle is rotatably connected to the outside of the dust bucket through a rotating rod, and a connecting component arranged on the lifting handle and matched with the fixed seat; an opening and closing unit, comprising a fixed rod transversely arranged in the dust collecting bin, a connecting rod longitudinally arranged in the dust collecting bin, an opening and closing component arranged outside the connecting rod, a driving component arranged in the fixed rod and matched with the rotating rod, and the opening and closing component and the driving component cooperate.

[0007] As a preferred solution of the dust bucket sealing device described in the present invention, the connecting assembly includes a guide groove arranged on the inner side of the fixed seat, a limit groove arranged on the upper and lower inner walls of the guide groove, and a limit block arranged on the outer side of the lifting handle; the limit block is rotatably connected in the limit groove.

[0008] As a preferred solution of the dust bucket sealing device described in the present invention, it also includes an extrusion assembly, the extrusion assembly is arranged in the rotating rod, the extrusion assembly includes a sliding hole arranged in the rotating rod, a spring arranged in the sliding hole, a fixing pin arranged on the spring, and a limiting nut arranged on the outside of the rotating rod near one end.

[0009] As a preferred solution of the dust bucket sealing device of the present invention, the inner wall of the guide groove is inclined, a positioning groove is provided on the inner wall of the guide groove, and the positioning groove and the fixing pin are matched.

[0010] As a preferred solution of the dust bucket sealing device described in the present invention, the opening and closing assembly includes an opening and closing plate one and an opening and closing plate two, a plurality of rotating sleeves are provided on the other side of the opening and closing plate one and one side of the opening and closing plate two, and the opening and closing plate one and the opening and closing plate two are alternately arranged on both sides of the connecting rod through the rotating sleeves.

[0011] As a preferred solution of the dust bucket sealing device of the present invention, gravity bars are arranged on one side of the opening and closing plate 1 and the other side of the opening and closing plate 2, and a through hole is opened at the center of the gravity bar.

[0012] As a preferred solution of the dust bucket sealing device described in the present invention, the driving assembly includes a driving rod 1 and a driving rod 2, and a sliding groove arranged in the fixed rod. The driving rod 1 and the driving rod 2 are respectively arranged on the inner sides of the fixed pins located on both sides, and penetrate the inner wall of the dust bucket and are slidably connected in the sliding groove.

[0013] As a preferred solution of the dust bucket sealing device described in the present invention, the driving rod 1 and the driving rod 2 are semicircular in shape to form a round rod structure, positioning strips are alternately arranged on the inner sides of the driving rod 1 and the driving rod 2, and several groups of connecting holes are opened on the outer walls of the driving rod 1 and the driving rod 2.

[0014] As a preferred solution of the dust bucket sealing device described in the present invention, it also includes a lifting component, the lifting component includes a plurality of groups of circular holes opened on the outside of the fixed rod, the circular holes face downward and are connected to the sliding groove, and a traction rope is slidably connected in the circular hole.

[0015] As a preferred solution of the dust bucket sealing device of the present invention, the two ends of the traction rope are respectively arranged between the driving rod 1 and the opening and closing plate 1 and between the driving rod 2 and the opening and closing plate 2.

[0016] The beneficial effects of the present invention are as follows: the position of the ash hopper can be quickly located through the dust collecting unit, so that the barrel mouth of the dust collecting bucket is accurately aligned with the ash outlet of the ash hopper to prevent dust from spilling out; and the barrel mouth can be closed when the dust collecting bucket is moved through the opening and closing unit to prevent dust from leaking out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The figure is a schematic diagram of the overall structure of the dust bucket sealing device of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the dust collecting unit in the dust collecting bucket sealing device of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the dust collecting unit in the dust collecting bucket sealing device of the present invention.

[0021] Figure 4 It is a cutaway plan view of the dust bucket sealing device of the present invention.

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0023] Figure 6 It is a top plan view of the dust collecting unit in the dust collecting bucket sealing device of the present invention.

[0024] Figure 7 for Figure 4 Enlarged view of point B in the middle.

[0025] Figure 8 It is a disassembly schematic diagram of the opening and closing unit in the dust bucket sealing device of the present invention.

[0026] Fig. 9 It is a schematic cross-sectional view of the opening and closing unit in the dust bucket sealing device of the present invention. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0031] Example 1, reference Figure 1 - Figure 3 , which is a first embodiment of the present invention, provides a dust bucket sealing device, including a mounting unit 100, including a body 101, and a dust bin 102 disposed in the body 101;

[0032] The dust collecting unit 200 includes two sets of fixed seats 201 and a lifting handle 202, the two sets of fixed seats 201 are mirror-imaged in the dust collecting groove, a dust collecting bucket 203 is arranged in the two sets of fixed seats 201, the lifting handle 202 is rotatably connected to the outside of the dust collecting bucket 203 through a rotating rod 204, and a connecting component 205 is arranged on the lifting handle 202 and matched with the fixed seat 201. The bottom of the fixed seat 201 is fixedly connected to the dust collecting bin 102 by bolts, and a dust collecting bucket 203 is arranged between the two sets of fixed seats 201. The dust collecting bucket 203 is used to collect dust and particles falling from the anode plate. The base of the dust collecting bucket 203 is provided with four sets of rollers, which are fixed by screws for easy handling and movement.

[0033] Furthermore, the lifting handle 202 is in a "U" shape, and the inner sides of both ends thereof are rotatably connected to the dust collecting bucket 203 through the rotating rod 204, and the limiting blocks 205c are fixedly connected at the outer positions of the two ends of the lifting handle 202. The limiting blocks 205c are in a capsule shape, and a guide groove 205a is provided at the upper end of the fixing seat 201 near the inner position. The guide groove 205a is rectangular and inclined from the inner side to the outer side. The width of the limiting block 205c is consistent with the height of the guide groove 205a. Only when the upper and lower sides of the limiting block 205c are in the same horizontal plane with the upper and lower inner walls of the guide groove 205a, the limiting block 205c can be slidably connected in the guide groove 205a.

[0034] Two groups of limit grooves 205b are provided on the upper and lower inner walls of the guide groove 205a, and the limit grooves 205b are semicircular. When the limit block 205c slides to the deep end of the guide groove 205a, it can no longer move forward, which means that the dust collecting bucket 203 has reached a specific position and just needs to wait for the dust on the anode plate to fall off. At this time, the lifting handle 202 can be pressed downward to drive the limit block 205c to rotate and be connected to the limit groove 205b. At this time, the limit block 205c can no longer move horizontally and is limited in the limit groove 205b. Only when the upper and lower sides of the limit block 205c are on the same horizontal plane as the upper and lower inner walls of the guide groove 205a, the limit block 205c can be slid and connected to the guide groove 205a again, that is, an external force is required to push the lifting handle 202 upward to drive the limit block 205c to rotate at the same time.

[0035] When the dust collecting bucket 203 reaches a specific position and waits for the dust on the anode plate to fall, the operator can press the lifting handle 202 downward to drive the limit block 205c to rotate and connect in the limit groove 205b. At this time, the limit block 205c cannot continue to move horizontally and is limited in the limit groove 205b. When the dust in the dust collecting bucket 203 needs to be recycled, the dust collecting bucket 203 needs to be taken out of the dust collecting bin 102. Only when the upper and lower sides of the limit block 205c are at the same horizontal plane as the upper and lower inner walls of the guide groove 205a, the limit block 205c can be slid and connected in the guide groove 205a again. This usually needs to be achieved by pushing the lifting handle 202 upward with external force, thereby driving the limit block 205c to rotate.

[0036] Example 2, reference Figure 4 - Figure 6 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that it also includes an extrusion component 206, the extrusion component 206 is arranged in the rotating rod 204, the extrusion component 206 includes a sliding hole 206a arranged in the rotating rod 204, a spring 206b arranged in the sliding hole 206a, a fixing pin 206c arranged on the spring 206b, and a limiting nut 206d arranged on the outside of the rotating rod 204 near one end, the inner wall of the guide groove 205a is inclined and a positioning groove 206e is opened on the inner wall of the guide groove 205a, and the positioning groove 206e and the fixing pin 206c are adapted to each other.

[0037] Furthermore, two groups of rotating rods 204 are provided, which are arranged at both sides of the dust collecting bucket 203 through bearings. One end of the rotating rod 204 penetrates the lifting handle 202 and the limit block 205c and protrudes a part, and a sliding hole 206a is opened in the rotating rod 204, and a fixing pin 206c is slidably connected in the sliding hole 206a. The fixing pin 206c and the bottom of the sliding hole 206a are elastically connected by setting a spring 206b. One end of the fixing pin 206c protrudes a part of one end of the rotating rod 204, and the end diameter of the fixing pin 206c at one end The diameter of the rod of the fixing pin 206c is smaller than that of the rod, so that the fixing pin 206c is in a "convex" shape. A limiting nut 206d is threadedly connected to one end of the rotating rod 204. The limiting nut 206d is in a "concave" shape and cooperates with the fixing pin 206c to limit the movable range of the fixing pin 206c. A positioning groove 206e is provided in the guide groove 205a. The positioning groove 206e is used to limit the position of the fixing pin 206c, and strengthen the locking effect that can be achieved by limiting the position of the limiting block 205c in the limiting groove 205b in the first embodiment;

[0038] The elastic potential energy of the spring 206b always pushes the fixing pin 206c to move toward one end of the rotating rod 204, and the limiting nut 206d will limit the position of the fixing pin 206c. When placing the dust bucket 203, it is necessary to align the two sets of limiting blocks 205c with the sliding groove 304c first, and push the dust bucket 203 to move deeper into the dust bin 102. At this time, the end of the fixing pin 206c will contact the side wall of the sliding groove 304c, and as the side wall of the sliding groove 304c tilts, under the action of the reaction force, the fixing pin 206c will apply pressure to the spring 206b, thereby compressing the spring 206b and storing the elastic potential energy. When the limiting block 205c can no longer move in the sliding groove 304c, it means that the fixing pin 206c is now Pin 206c is aligned with the positioning hole, and spring 206b is no longer subjected to the pressure exerted by fixing pin 206c. Fixing pin 206c is quickly pushed to reset, and the end of fixing pin 206c is inserted into the positioning hole, thereby achieving the effect of strengthening the limiting block 205c in limiting groove 205b. It should be noted that the interior of positioning groove 206e is in the shape of an arc, and the end edge of fixing pin 206c is also in the shape of an arc, which makes it only necessary to apply pulling force to lifting handle 202. Under the transmission of force, the extrusion force exerted by fixing pin 206c on positioning groove 206e will be converted into pressure on spring 206b, so that spring 206b is re-compressed to store elastic potential energy, which makes fixing pin 206c disengage from positioning groove 206e and completes unlocking.

[0039] The remaining structures are the same as those of Example 1.

[0040] Example 3, reference Figure 7 - Fig. 9, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the opening and closing unit 300 includes a fixed rod 301 horizontally arranged in the dust collecting bucket 203, a connecting rod 302 longitudinally arranged in the dust collecting bucket 203, an opening and closing assembly 303 arranged outside the connecting rod 302, a driving assembly 304 arranged in the fixed rod 301 and matched with the rotating rod 204, and the opening and closing assembly 303 and the driving assembly 304 cooperate.

[0041] Furthermore, a fixed rod 301 is horizontally arranged in the dust collecting bucket 203, the fixed rod 301 and the rotating rod 204 are on the same axis, and a driving rod 1 304a and a driving rod 2 304b are respectively arranged on the inner ends of the fixing pins 206c on both sides, the driving rod 1 304a and the driving rod 2 304b pass through the spring 206b and the dust collecting bucket 203 and are arranged in the sliding groove 304c in the fixed rod 301, and positioning strips 304d are staggeredly arranged on the inner sides of the driving rod 1 304a and the driving rod 2 304b, and are embedded in the inner sides of the driving rod 1 304a and the driving rod 2 304b one above and one below, and the fixing strips play a guiding role.

[0042] Furthermore, a plurality of groups of connecting rods 302 are longitudinally arranged in the dust collecting bucket 203, and the plurality of connecting rods 302 are equal to each other and the connecting rods 302 are externally rotatably connected with an opening and closing plate 1 303a and an opening and closing plate 2 303b, and the opening and closing plate 1 303a and the opening and closing plate 2 303b are respectively arranged on both sides of the connecting rod 302, and the dust collecting bucket 203 is sealed and dust is collected by rotating the opening and closing plate 1 303a and the opening and closing plate 2 303b, and when the inner sides of the opening and closing plate 1 303a and the opening and closing plate 2 303b are in contact with each other, the dust collecting bucket 203 is sealed, and dust is prevented from floating out of the dust collecting bucket 203 during the transportation of the dust collecting bucket 203.

[0043] Among them, gravity bars 303d are installed on the outer sides of the opening and closing plates 1 303a and 303b. When there is no external force acting on the opening and closing plates 1 303a and 303b, the gravity factor of the gravity bars 303d causes the opening and closing plates 1 303a and 303b to rotate downward at the same time, so that the gaps between the several groups of connecting rods 302 become ash falling channels between the anode plate and the dust collecting bucket 203, thereby completing the ash collecting work.

[0044] Further, the outer wall of the fixed rod 301 is provided with circular holes 305a, which are equal to the number of the gravity bar 303d, near the lower end thereof. The circular holes 305a are connected to the sliding groove 304c. A through hole 303e is provided at the central position of the gravity bar 303d. Several groups of connecting holes 304e are provided near the lower ends of the outer sides of the driving rod 1 304a and the driving rod 2 304b. The connecting holes 304e are in a circular ring shape and are evenly distributed. The distances between the connecting holes 304e on the driving rod 1 304a and the connecting holes 304e on the driving rod 2 304b are equal.

[0045] The connecting hole 304e on the driving rod 1 304a is wrapped with one end of a traction rope 305b, and the other end of the traction rope 305b passes through the circular hole 305a, protrudes outside the fixed rod 301, and is wrapped and connected with the through hole 303e on the opening and closing plate 1 303a, so that the driving rod 1 304a moves, which can pull the gravity bar 303d to drive the opening and closing plate 1 303a to rotate upward with the connecting rod 302 as the center of the circle. The connecting hole 304e on the driving rod 2 304b is wrapped with one end of a traction rope 305b, and the other end of the traction rope 305b passes through the circular hole 305a, protrudes outside the fixed rod 301, and is wrapped and connected with the through hole 303e on the opening and closing plate 2 303b, so that the driving rod 2 304b moves, which can pull the gravity bar 303d to drive the opening and closing plate 2 303b to rotate upward with the connecting rod 302 as the center of the circle.

[0046] Furthermore, through Example 2, it can be known that the fixing pins 206c on both sides move in opposite directions at the same time, which makes the driving rod 1 304a and the driving rod 2 304b move in opposite directions. The traction rope 305b simultaneously drives the opening and closing plate 1 303a and the opening and closing plate 2 303b to rotate upward or downward at the same time, thereby achieving the effect of opening and closing the barrel mouth of the dust collecting barrel 203.

[0047] The remaining structure is the same as that of Example 2.

[0048] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0049] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A dust collecting bucket sealing device (203), characterized in that: include, The installation unit (100) comprises a body (101) and a dust collection bin (102) arranged in the body (101); The dust collecting unit (200) comprises two groups of fixing seats (201) and a lifting handle (202), the two groups of fixing seats (201) are arranged in a mirror image in the dust collecting bin (102), a dust collecting cylinder (203) is arranged in the two groups of fixing seats (201), the lifting handle (202) is rotatably connected to the outside of the dust collecting cylinder (203) through a rotating rod (204), and a connecting component (205) is arranged on the lifting handle (202) and matched with the fixing seat (201); The opening and closing unit (300) comprises a fixed rod (301) disposed transversely in a dust collecting cylinder (203), a connecting rod (302) disposed longitudinally in the dust collecting cylinder (203), an opening and closing assembly (303) disposed outside the connecting rod (302), a driving assembly (304) disposed in the fixed rod (301) and matched with a rotating rod (204), and the opening and closing assembly (303) and the driving assembly (304) are matched.

2. The dust bucket sealing device (203) according to claim 1, characterized in that: The connecting assembly (205) comprises a guide groove (205a) arranged on the inner side of the fixing seat (201), a limiting groove (205b) arranged on the upper and lower inner walls of the guide groove (205a), and a limiting block (205c) arranged on the outer side of the lifting handle (202); The limiting block (205c) is rotatably connected in the limiting groove (205b).

3. The dust collecting bucket sealing device (203) according to claim 2, characterized in that: The invention also includes an extrusion component (206), the extrusion component (206) is arranged in the rotating rod (204), the extrusion component (206) includes a sliding hole (206a) arranged in the rotating rod (204), a spring (206b) arranged in the sliding hole (206a), a fixing pin (206c) arranged on the spring (206b), and a limiting nut (206d) arranged outside the rotating rod (204) near one end.

4. The dust bucket sealing device (203) according to claim 3, characterized in that: The inner wall of the guide groove (205a) is inclined, and a positioning groove (206e) is provided on the inner wall of the guide groove (205a), and the positioning groove (206e) and the fixing pin (206c) are matched with each other.

5. The dust bucket sealing device (203) according to claim 4, characterized in that: The opening and closing assembly (303) comprises an opening and closing plate 1 (303a) and an opening and closing plate 2 (303b); a plurality of groups of rotating sleeves (303c) are provided on the other side of the opening and closing plate 1 (303a) and one side of the opening and closing plate 2 (303b); and the opening and closing plate 1 (303a) and the opening and closing plate 2 (303b) are alternately arranged at two sides of the connecting rod (302) via the rotating sleeves (303c).

6. The dust container sealing device (203) according to claim 5, characterized in that: A gravity bar (303d) is arranged on one side of the opening and closing plate 1 (303a) and the other side of the opening and closing plate 2 (303b), and a through hole (303e) is opened at the center of the gravity bar (303d).

7. The dust container sealing device (203) according to claim 6, characterized in that: The driving assembly (304) comprises a driving rod 1 (304a) and a driving rod 2 (304b), and a sliding groove (304c) arranged in the fixed rod (301); the driving rod 1 (304a) and the driving rod 2 (304b) are respectively arranged on the inner side of the fixed pins (206c) located on both sides, and penetrate the inner wall of the dust collecting cylinder (203) and are slidably connected in the sliding groove (304c).

8. The dust container sealing device (203) according to claim 7, characterized in that: The driving rod 1 (304a) and the driving rod 2 (304b) are semicircular and form a round rod structure. Positioning strips (304d) are staggeredly arranged on the inner sides of the driving rod 1 (304a) and the driving rod 2 (304b). The outer walls of the driving rod 1 (304a) and the driving rod 2 (304b) are provided with a plurality of groups of connection holes (304e).

9. The dust bucket sealing device (203) according to claim 8, characterized in that: It also includes a lifting component (305), the lifting component (305) includes a plurality of groups of circular holes (305a) opened on the outside of the fixing rod (301), the circular holes (305a) are downwardly facing and connected to the sliding grooves (304c), and a traction rope (305b) is slidably connected in the circular holes (305a).

10. The dust bucket sealing device (203) according to claim 9, characterized in that: The two ends of the traction rope (305b) are respectively arranged between the first driving rod (304a) and the first opening and closing plate (303a) and between the second driving rod (304b) and the second opening and closing plate (303b).

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