Self-cleaning device for filter screen

Abstract

The invention discloses a filter screen self-cleaning device, and relates to the technical field of communication equipment maintenance. Comprising a linear motion unit, a mounting unit, a box body and a protective cover plate arranged on the box body; the adjusting unit comprises a rotating rod and a connecting assembly, the rotating rod is arranged in the box body, and the connecting assembly is arranged in the box body and connected with the rotating rod. According to the device, by arranging the adjusting unit, a whole roll of filter screen can be placed in the box body, the dustproof effect is achieved through mutual cooperation of a rotating rod and a jacking rod, the rotating time of a motor is controlled through pulses of a sensor, and therefore the filter screen transmission distance of the rotating rod is controlled, and regular replacement of the filter screen is achieved; the filter screen can be conveniently disassembled and assembled from the rotating rod, the connecting piece and the rotating rod can be tightly connected together in the use process of the filter screen, the filter screen can be automatically replaced by equipment, the situation that the filter screen is blocked by accumulated dust and the ventilation performance of the equipment is affected is avoided, and it is guaranteed that the equipment cannot be at high temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of communication equipment maintenance, and in particular to a filter self-cleaning device. Background Art

[0002] As a hardware device for transmitting information, heat dissipation is particularly important for communication transmission equipment. Filters are usually installed at the vents to prevent dust and other particles from entering the equipment, thereby protecting the normal operation of the internal components of the equipment.

[0003] Existing communication transmission equipment filter technology cannot automatically detect and sense its own ventilation conditions. When accumulated dust clogs the filter, it cannot issue an alarm. Filter clogs can cause high temperatures in the transmission equipment, affecting the equipment itself and the business operations it carries. Under current technology, filter cleaning usually relies on regular manual inspection and cleaning, which requires a large amount of maintenance work and may result in untimely cleaning due to human factors. Summary of the invention

[0004] In view of the above problems existing in the existing filter self-cleaning device, the present invention is proposed.

[0005] Therefore, the present invention provides a self-cleaning device for a filter, the purpose of which is that: under current technology, the cleaning of the filter usually relies on regular manual inspection and cleaning, the maintenance workload is large, and the problem of untimely cleaning may be caused by human factors.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an installation unit, including a box body and a protective cover plate arranged on the box body; an adjustment unit, including a rotating rod, the rotating rod is arranged in the box body, a connecting component arranged in the box body and connected to the rotating rod, and a limiting component arranged in the box body and matched with the rotating rod; a locking unit, including a filter screen, the filter screen is wrapped around the outside of the rotating rod, a pushing component arranged in the rotating rod, and a fixing component arranged in the rotating rod and matched with the filter screen.

[0007] As a preferred solution of the filter self-cleaning device described in the present invention, the connecting assembly includes a central control motor arranged on the box body, a baffle arranged on the outside of the rotating rod, a sensor arranged on the central control motor, and an elliptical hole arranged on the baffle; the central control motor and the rotating rod cooperate with each other, and the baffle and the rotating rod are threadedly connected.

[0008] As a preferred solution of the filter self-cleaning device described in the present invention, the limiting assembly includes a fixed seat arranged in the box body, a sliding rod arranged in the fixed seat, a limiting ring arranged outside the sliding rod, and a spring 1 arranged on the limiting ring.

[0009] As a preferred solution of the filter self-cleaning device of the present invention, it also includes a rotating assembly, which includes a circular hole arranged on the surface of one end of the sliding rod, a bearing arranged in the circular hole, a connecting rod arranged in the bearing, a hexagonal groove arranged on the surface of one side of the connecting rod, and an open groove arranged on the inner wall of the circular hole; the open groove is adapted to the other end of the rotating rod.

[0010] As a preferred solution of the filter self-cleaning device described in the present invention, it also includes a docking assembly, the docking assembly includes a limiting groove arranged on the surface of the other end of the rotating rod, a connecting plate arranged in the limiting groove, and a connecting block arranged on the connecting plate; the connection and the hexagonal groove cooperate with each other.

[0011] As a preferred solution of the filter self-cleaning device of the present invention, it also includes a lifting assembly, which includes an electric push rod arranged on the inner wall of the box body, a lifting rod arranged on the electric push rod, and a positioning rod arranged in the box body.

[0012] As a preferred solution of the filter self-cleaning device described in the present invention, the pushing assembly includes a pushing groove arranged on the inner wall of the limiting groove, a pushing rod arranged in the pushing groove, a lifting groove arranged in the pushing groove, and a lifting rod arranged in the lifting groove; the pushing rod and the connecting plate are fixedly connected.

[0013] As a preferred solution of the filter self-cleaning device described in the present invention, the fixing assembly includes a fixing pin arranged at the upper end of the lifting rod, a connecting plate arranged on the filter, a sliding groove arranged on the connecting plate, and a fixing hole arranged on the connecting plate; the fixing pin is movably connected to the inner wall of the fixing hole.

[0014] As a preferred solution of the filter self-cleaning device described in the present invention, it also includes an extrusion assembly, which includes a through groove arranged outside the pushing groove, a driving groove arranged inside the through groove, a driven block arranged in the driving groove, and a rectangular groove arranged at the bottom of the lifting rod; the driven block and the driving groove cooperate with each other, and the driven block is fixedly connected to the inner wall of the rectangular groove.

[0015] As a preferred solution of the filter self-cleaning device of the present invention, it also includes a reset component, which includes a reset groove arranged on the inner wall of one side of the push groove, a second spring arranged in the reset groove, and a limit plate arranged on the second spring.

[0016] The beneficial effects of the present invention are as follows: by setting an adjustment unit, a whole roll of filter can be placed in the box, and the dust-proof effect is achieved through the cooperation of the rotating rod and the lifting rod. The motor rotation time is controlled by the pulse of the sensor, thereby controlling the filter transmission distance of the rotating rod, thereby realizing regular replacement of the filter. By setting a locking unit, the filter can be conveniently disassembled and assembled from the rotating rod, and the connecting piece and the rotating rod can be tightly connected together during the use of the filter. The equipment will automatically replace the filter to avoid dust accumulation clogging the filter and affecting the ventilation performance of the equipment, thereby ensuring that the equipment will not be overheated. 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 It is a schematic diagram of the overall structure of the filter self-cleaning device of the present invention.

[0019] Figure 2 It is a schematic diagram of the overall structure of the filter self-cleaning device of the present invention.

[0020] Figure 3 It is a cross-sectional view of the overall structure of the filter self-cleaning device of the present invention.

[0021] Figure 4 It is a disassembled anatomical schematic diagram of the adjustment unit in the filter self-cleaning device of the present invention.

[0022] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0023] Figure 6 for Figure 3 Enlarged view of point B in the middle.

[0024] Figure 7 It is a disassembly schematic diagram of the locking unit in the filter self-cleaning device of the present invention. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Example 1, reference Figure 1 - Figure 2 , which is the first embodiment of the present invention, provides a self-cleaning device for a filter 301, including an upper portion of a box body 101 movably connected to a protective cover plate 102 by screws, the protective cover plate 102 adopts a pull-out design, and can be pulled out after removing two hand screws. When the protective cover plate 102 is not removed, it will block the sliding rod 203b at the front of the box body 101 to prevent personnel from misoperating the sliding rod 203b during operation and causing equipment failure.

[0030] Furthermore, two groups of central control motors 202a are arranged in a mirror image on the central axis in the box body 101, and a rotating rod 201 is movably connected to the central control motor 202a. The function of the central control motor 202a is to transmit power to the rotating rod 201 to drive the rotating rod 201 to rotate. Blocking pieces 202b are threadedly connected to the outside of the rotating rod 201 near both ends. The function of the blocking piece 202b is to fix the consumable filter 301 wrapped around the outside of the rotating rod 201 to prevent it from falling off during winding, and four groups of elliptical holes 202d are opened on the surface of the blocking piece 202b. Sensors 202c are arranged on one side of the two groups of central control motors 202a. The sensor 202c calculates the rotation position of the rotating rod 201 and the winding length of the filter 301 by sensing the pulse signal generated by the elliptical hole 202d of the blocking piece 202b.

[0031] Furthermore, two sets of lifting components 206 are arranged inside the box 101. One set of lifting components 206 contains two electric push rods 206a, which are respectively arranged on the inner walls of both sides of the box 101. The output ends of the two sets of positioning rods 206c are commonly connected to the lifting rods 206b. In addition, two sets of positioning rods 206c are arranged inside the box 101, which cooperate with the lifting rods 206b to prevent the filter 301 from being transmitted in a non-set route direction. The positioning rods 206c are guided left and right, and the lifting rods 206b are guided up and down. The filter 301 is lifted and lowered to achieve the effect of making the upper surface of the filter 301 close to the air inlet of the equipment. The above-mentioned device solves the existing problem of manually replacing the filter 301 at a fixed time. A display is provided at the front of the box body 101. The display calculates and displays the remaining length of the filter 301, the number of automatic replacement times of the filter 301, the remaining number of automatic replacement times, whether the motor sensor 202c is faulty, etc. by connecting the sensor 202c and the main control motor, and sends the information to the maintenance personnel's mobile phone in the form of a text message through the antenna on the right.

[0032] Example 2, reference Figure 3 - Figure 5 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that two groups of limit assemblies 203 are arranged in the box body 101, and the two groups of limit assemblies 203 are respectively matched with the rotating rod 201. The limit assembly 203 includes a fixed seat 203a, which is arranged at the front part of the box body 101 and is coaxial with the rotating rod 201, and the fixed seat 203a is in an "O" shape, and a sliding rod 203b is horizontally slidably connected therein, and the other end of the sliding rod 203b protrudes a part at the front part of the box body 101, and when the protective cover 102 is fixedly connected to the box body 101 by screws, the protective cover 102 will block the sliding rod 203b when it is not removed, so as to prevent the sliding rod 203b from being misoperated by personnel during operation and causing equipment failure.

[0033] Furthermore, a circular hole 204a is provided at the other end of the sliding rod 203b, a bearing 204b is provided in the circular hole 204a, a connecting rod 204c is fixedly connected in the inner ring of the bearing 204b, a hexagonal groove 204d is provided on one end surface of the connecting rod 204c, and a limiting groove 205a is provided on the other end surface of the rotating rod 201, the limiting groove 205a is in the shape of a circular hole 204a, the notch diameter of the limiting groove 205a is smaller than the diameter of the limiting groove 205a, a connecting plate 205b is horizontally slidably connected inside the limiting groove 205a, the connecting plate 205b is circular, the outer wall of the connecting plate 205b fits the inner wall of the limiting groove 205a, and the diameter of the connecting plate 205b is larger than the notch diameter of the limiting groove 205a, which allows the connection Plate 205b can slide in the limiting groove 205a, but the connecting plate 205b cannot be separated from the limiting groove 205a, which allows the connecting plate 205b to move only within a specific range, thereby achieving a limiting effect. A connecting block 205c is provided on the connecting plate 205b, and the connecting block 205c is hexagonal in shape, which can automatically slide in the notch of the limiting groove 205a, and a protruding part will be connected to the hexagonal groove 204d. Through such a setting, the rotating rod 201 can be supported under the drive of the central control motor 202a, and by connecting with the bearing 204b, the wear on the other end of the rotating rod 201 can be reduced, and the smoothness of the rotating rod 201 during rotation can be improved.

[0034] Secondly, a push groove 302a and a reset groove 305a are provided on the inner wall of the limit groove 205a, and the central axes of the push groove 302a, the reset groove 305a and the limit groove 205a are aligned, and a second spring 305b is provided in the reset groove 305a, and a limit plate 305c is provided on the second spring 305b. The limit plate 305c here and the connecting plate 205b mentioned above have the same effect, both of which are limit functions, and only allow the limit plate 305c to slide in the reset groove 305a. The push rod 302b is on the plate 305c, and the push rod 302b is slidably connected in the push groove 302a, and the other end of the push rod 302b is connected to the connecting plate 205b, so that under the action of the tension elastic force of the spring 2 305b, the push rod 302b is always driven to move to the other side through the limiting plate 305c, and a pushing force is applied to the connecting block 205c in the other direction through the connecting plate 205b, so that the connecting block 205c is tightly limited in the hexagonal groove 204d.

[0035] An opening groove 204e is provided on the outside of the sliding rod 203b, and the opening groove 204e is connected to the circular hole 204a. The width of the opening groove 204e is greater than the diameter of the other end of the rotating rod 201, so that the rotating rod 201 can be movably connected in the opening groove 204e. A limiting ring 203c is provided on the outside of the sliding rod 203b at the other side of the opening groove 204e. A spring 203d is provided between the limiting ring 203c and the fixing seat 203a. The spring 203d acts to It has a reset effect. Since the fixing seat 203a is fixed to the box body 101 by bolts, under the action of the stretching elastic force of the spring 203d, the limiting ring 203c is always pushed to move to one side, driving the sliding rod 203b to fit closely with the hexagonal groove 204d and the connecting block 205c, providing a stable supporting force, avoiding the rotating rod 201 from tilting during operation, causing damage to the central control motor 202a or deformation of the movement trajectory of the filter 301, thereby affecting the filtering effect.

[0036] During use, when all the filters 301 have been used, the filter 301 needs to be replaced. The rotating rod 201 needs to be disassembled first. At this time, the protective cover 102 needs to be removed first, and then the sliding rod 203b protruding from the front of the box body 101 is pulled. The sliding rod 203b compresses the spring 1 203d through the limiting ring 203c to store elastic potential energy. At the same time, driven by the sliding rod 203b, the hexagonal groove 204d will be separated from the connecting block 205c. At this time, observe whether the other end of the rotating rod 201 appears in the range of the opening groove 204e. When one end of the rotating rod 201 appears in the central position of the opening groove 204e, the rotating rod 201 and the rolled-up filter 301 can be moved to the other side as a whole, so that one end of the rotating rod 201 is separated from the central control motor 202a. At this time, the filter 301 and the rotating rod 201 can be vertically pulled up for replacement.

[0037] The remaining structures are the same as those of Example 1.

[0038] Example 3, reference Figure 4 - Figure 7 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: both ends of the filter screen 301 are provided with connecting pieces 303b, the connecting piece 303b is used to connect with the rotating rod 201, and a long sliding groove 303c and a plurality of semicircular fixing holes 303d are provided on the surface of the connecting piece 303b.

[0039] Furthermore, the outer part of the rotating rod 201 is provided with lifting grooves 302c of the same number and spacing as the fixing holes 303d. The lifting grooves 302c penetrate the pushing grooves 302a and are provided inside the rotating rod 201, and form a cross structure with the pushing grooves 302a. In addition, a lifting rod 302d is connected to the lifting grooves 302c for vertical upward and downward sliding. The lifting grooves 302c play a role of limiting, and only allow the lifting rod 302d to make vertical upward and downward linear motion in the lifting grooves 302c. A rectangular groove 304d is provided on the outside near the lower end so that the lifting rod 302d presents an inverted "U" structure. A fixing pin 303a is provided on the upper end of the lifting rod 302d. The fixing pin 303a is in the shape of a barb, and one side of the fixing pin 303a is shorter than the other side, that is, one side of the fixing pin 303a cooperates with the fixing hole 303d and is inserted into the fixing hole 303d, and the other side of the fixing pin 303a is connected to the upper end of the lifting rod 302d, and is slidably connected in the sliding groove 303c, thereby playing a connecting role.

[0040] Furthermore, a through slot 304a matching the number and position of the lifting slot 302c is provided on the outside of the pushing rod 302b, and the through slot 304a is composed of two rectangular grooves running through the outside of the pushing rod 302b, connecting the lifting slot 302c which is mirrored on the central axis of the inner wall of the pushing slot 302a, so that the lifting rod 302d can move vertically up and down in the lifting slot 302c through the through slot 304a to achieve the limiting effect, and a driving slot 304b is provided on the inner wall of the through slot 304a, and a driven block 304c is provided in the driving slot 304b, and the driven block 304c is arranged on the inner wall of the rectangular slot 304d. It should be noted that the driving slot 304b is in the shape of a parallelogram, and its upper and lower inner walls are horizontally parallel, and its two sides are inclined parallel surfaces inclined downward, and the driven block 304c is adapted to the driving slot 304b as above, and the driven block 304c is fixedly installed on the inner wall of the rectangular slot 304d.

[0041] During use, when the device is used and the two ends of the filter screen 301 need to be installed on the two rotating rods 201 respectively, we need to press the connecting block 205c first to make the connecting block 205c move into the limiting groove 205a, so that the connecting block 205c applies pressure to the push rod 302b in one direction through the connecting plate 205b, thereby compressing the spring 2 305b, and the push rod 302b is displaced, so that the inclined surface of the inner wall on the other side of the driving groove 304b in the plurality of groups in the push rod 302b applies a thrust in one direction to the inclined surface on the other side of the driven block 304c, due to the lifting groove 302d in the lifting rod 302d When the limit c cannot move horizontally, it will move vertically upward under the push of the pushing rod 302b, so that one side of the fixing pin 303a will be separated from the lifting slot 302c and protrude from the outside of the rotating rod 201. At this time, we can align the sliding slot 303c of the connecting piece 303b with the other side of the fixing pin 303a, and plug and connect several fixing pins 303a and sliding slots 303c in turn. When the inner wall of one side of the sliding slot 303c contacts the original side of the fixing pin 303a, it means that the installation position of the connecting piece 303b is in place. At this time, the connecting block 205c can be loosened, and the spring 205b has no connection block 2 302b is reset by the pressure exerted by the limit plate 305c under the action of the elastic potential energy, so that the inclined surface of the inner wall of one side of the driving groove 304b applies a thrust to the inclined surface of one side of the driven block 304c in the other direction, so that a plurality of fixing pins 303a move vertically downward quickly, that is, one side of the fixing pin 303a is quickly inserted into the fixing hole 303d, so as to achieve the effect of temporarily fixing the connecting piece 303b and the fixing pin 303a together. After the connecting piece 303b is installed, the filter screen 301 is rolled up, and then the connecting piece 303b at the other end of the filter screen 301 and the two sets of positioning rods 206c are fixed. Fit it with the lifting rod 206b, plan the installation route of the filter 301, ensure that the filter 301 is correctly placed along the planned path without any misalignment or distortion, and then connect another set of connecting pieces 303b with another set of rotating rods 201, and then implement the second method to rotate the other end of the rotating rod 201 to connect it to the fixed seat 203a, install the rear protective cover 102, and then the communication equipment can be installed on the box 101. There is a large gap between the communication equipment and the protective cover 102, and this gap is the vent. The lifting rod 206b is pushed up by the electric push rod 206a, driving the filter 301 to fit the bottom of the communication equipment for dust prevention.

[0042] The remaining structure is the same as that of Example 2.

[0043] 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.

[0044] 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.

[0045] 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 filter self-cleaning device, Features: include, An installation unit (100) comprises a box body (101) and a protective cover plate (102) arranged on the box body (101); The adjustment unit (200) comprises a rotating rod (201), the rotating rod (201) being arranged in a box (101), a connecting component (202) being arranged in the box (101) and connected to the rotating rod (201), and a limiting component (203) being arranged in the box (101) and cooperating with the rotating rod (201); The locking unit (300) comprises a filter (301), the filter (301) being wound around the outside of a rotating rod (201), a pushing component (302) disposed in the rotating rod (201), and a fixing component (303) disposed in the rotating rod (201) and cooperating with the filter (301).

2. The filter self-cleaning device according to claim 1, Features: The connecting component (202) comprises a central control motor (202a) arranged on the box body (101), a baffle (202b) arranged outside the rotating rod (201), a sensor (202c) arranged on the central control motor (202a), and an elliptical hole (202d) arranged on the baffle (202b); The central control motor (202a) and the rotating rod (201) are matched, and the blocking piece (202b) and the rotating rod (201) are threadedly connected.

3. The filter self-cleaning device according to claim 2, Features: The limiting assembly (203) comprises a fixed seat (203a) arranged in the box body (101), a sliding rod (203b) arranged in the fixed seat (203a), a limiting ring (203c) arranged outside the sliding rod (203b), and a spring (203d) arranged on the limiting ring (203c).

4. The filter self-cleaning device according to claim 3, Features: It also includes a rotating assembly (204), the rotating assembly (204) including a circular hole (204a) disposed on the surface of one end of the sliding rod (203b), a bearing (204b) disposed in the circular hole (204a), a connecting rod (204c) disposed in the bearing (204b), a hexagonal groove (204d) disposed on the surface of one side of the connecting rod (204c), and an open groove (204e) disposed on the inner wall of the circular hole (204a); The opening slot (204e) is matched with the other end of the rotating rod (201).

5. The filter self-cleaning device according to claim 4, Features: It also includes a docking assembly (205), the docking assembly (205) including a limiting groove (205a) arranged on the other end surface of the rotating rod (201), a connecting plate (205b) arranged in the limiting groove (205a), and a connecting block (205c) arranged on the connecting plate (205b); The connection cooperates with the hexagonal groove (204d).

6. The filter self-cleaning device according to claim 5, Features: It also includes a lifting assembly (206), the lifting assembly (206) including an electric push rod (206a) arranged on the inner wall of the box body (101), a lifting rod (206b) arranged on the electric push rod (206a), and a positioning rod (206c) arranged in the box body (101).

7. The filter self-cleaning device according to claim 6, Features: The pushing assembly (302) comprises a pushing groove (302a) arranged on the inner wall of the limiting groove (205a), a pushing rod (302b) arranged in the pushing groove (302a), a lifting groove (302c) arranged in the pushing groove (302a), and a lifting rod (302d) arranged in the lifting groove (302c); The pushing rod (302b) and the connecting plate (205b) are fixedly connected.

8. The filter self-cleaning device according to claim 7, Features: The fixing assembly (303) comprises a fixing pin (303a) arranged at the upper end of the lifting rod (302d), a connecting piece (303b) arranged on the filter screen (301), a sliding groove (303c) arranged on the connecting piece (303b), and a fixing hole (303d) arranged on the connecting piece (303b); The fixing pin (303a) is movably connected to the inner wall of the fixing hole (303d).

9. The filter self-cleaning device according to claim 8, Features: It also includes an extrusion assembly (304), the extrusion assembly (304) including a through slot (304a) arranged outside the pushing slot (302a), a driving slot (304b) arranged inside the through slot (304a), a driven block (304c) arranged in the driving slot (304b), and a rectangular slot (304d) arranged at the bottom of the lifting rod (302d); The driven block (304c) and the driving groove (304b) are matched with each other, and the driven block (304c) is fixedly connected to the inner wall of the rectangular groove (304d).

10. The filter self-cleaning device according to claim 9, Features: The device also comprises a reset component (305), wherein the reset component (305) comprises a reset groove (305a) arranged on an inner wall of one side of the push groove (302a), a second spring (305b) arranged in the reset groove (305a), and a limit plate (305c) arranged on the second spring (305b).

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