A dust collector with automatic cleaning function

Abstract

The present invention relates to the technical field of dust collectors, and in particular to a dust collector with an automatic cleaning function. Its bag filter assembly includes a frame, a guide rod, an energy storage limit assembly, and a transmission assembly located inside the filter bag. The frame includes an elastic support rod and a retaining frame. The retaining frame is slidably connected to the guide rod. Both ends of the elastic support rod are respectively hinged to the edge of the air outlet and the retaining frame. The energy storage limit assembly limits and shapes the initial drum-shaped state of the elastic support rod. As the blockage degree of the filter bag continues to increase, the filter bag squeezes the elastic support rod inwardly to break through the equilibrium state of the elastic support rod, and the energy storage limit assembly releases potential energy to knock the inertia block upward. The first sliding sleeve drives the elastic support rod upward under the action of inertia to switch to a concave state. During the state switching process, the filter bag moves rapidly inwardly with the elastic support rod, generating an outward jet airflow action and inertia actions in the horizontal and vertical directions, providing multi-dimensional impacts on the dust on the outer surface of the filter bag.

Description

Technical Field

[0001] The present application relates to the field of dust collectors, and in particular to a dust collector with an automatic cleaning function. Background Art

[0002] A dust collector is a device that filters dust particles in the air. There are many types of dust collectors classified according to their working principles. Common ones include bag dust collectors, filter dust collectors, electrostatic adsorption dust collectors, etc. Filter dust collectors are further divided into spray type, water flow type, microporous type, etc. In fact, bag dust collectors also belong to microporous filtration, which uses the micropores on the surface of the filter bag to separate dust particles from the air.

[0003] The working principle of the bag filter in the prior art is that the dust-laden air is sucked into the dust collector through the action of the fan, and the dust is retained on the surface of the filter bag after being filtered by the filter bag, while the purified gas passes through the filter bag and is discharged by the induced draft fan. As time goes by, the dust on the filter bag gradually increases, resulting in an increase in resistance, and then a cleaning operation is required. When cleaning, turn off the induced draft fan, open the pulse valve, and spray compressed air into the filter bag through the nozzle to blow off the dust on the filter bag. The dust that falls into the ash hopper is discharged through the ash discharge port. There are also multiple options for the air intake mode of the bag filter, such as upper air intake, middle air intake, lower air intake, etc. Different air intake modes have a certain influence on the air flow distribution and the cleaning effect. For example, the upper air intake mode can reduce the overall pressure loss of the equipment, but may aggravate the erosion of the filter bag; while the lower air intake mode is conducive to the sedimentation of larger dust particles, but may increase the resistance of the equipment. In addition, cleaning to keep the micropores on the surface of the filter bag unobstructed is one of the important conditions for filtration efficiency and filtration effect. The cleaning methods in the prior art include mechanical vibration, reverse airflow and other methods to make the dust accumulated on the surface of the filter bag fall off and dredge the micropores on the surface to ensure that the filter bag continues to work efficiently. However, in the prior art, whether it is mechanical vibration or reverse airflow (such as the common pulse reverse airflow), it is difficult to automatically clean the dust according to the blockage of the filter bag. Some bag dust collectors install air pressure sensors or timers to trigger the cleaning operation for automatic cleaning. In a dusty working environment, the air pressure sensor will be affected by the accumulation of dust on the sensor surface, and its reliability will gradually decrease over time. The timer triggers the cleaning operation for automatic cleaning after a preset time. Since the degree of blockage of the filter bag does not change evenly over time, the reliability of timed cleaning by the timer is actually lower than that of air pressure sensor cleaning.

[0004] It can be seen that making the filter bags clean automatically and improving the reliability and cleaning efficiency of automatic cleaning is a difficult point and an important direction in the optimization design of bag dust collectors. Summary of the invention

[0005] In view of this, a dust collector with an automatic cleaning function is proposed to achieve automatic cleaning of the filter bag and improve the reliability and cleaning efficiency of the automatic cleaning.

[0006] The present application provides a dust collector with an automatic cleaning function, comprising a box, a fan, and at least one bag filter assembly, wherein a dust discharge port is provided at the bottom of the box, the bag filter assembly comprises a filter bag, the bag filter assembly is installed inside the box and relies on the filter bag to separate the air inlet and the exhaust port of the box, the fan is installed at the air inlet or the exhaust port, the fan drives the airflow to enter the box from the air inlet and be discharged from the exhaust port after passing through the filter bag, and the dust accumulated on the surface of the filter bag falls off during the dust cleaning process and is discharged from the dust discharge port;

[0007] The bag filter assembly also includes a frame, a guide rod, an energy storage limit assembly, and a transmission assembly located inside the filter bag. The guide rod is vertically arranged, and the upper end of the guide rod is fixedly connected to the box body;

[0008] The skeleton comprises a retaining frame and a plurality of elastic support rods, each of the elastic support rods is distributed in a circular array around the guide rod, the retaining frame is slidably connected to the lower end of the guide rod in the vertical direction, the upper end of the elastic support rod is hinged to the edge of the exhaust port located at the top of the box body, the lower end of the elastic support rod is hinged to the retaining frame, the elastic support rod and the retaining frame are wrapped around the inner side of the filter bag, the bag opening of the filter bag is arranged around the exhaust port and is tightly fitted and fixedly connected to the edge of the exhaust port, the elastic support rod provides a supporting force from the inside to the outside to the filter bag so that the shape of the filter bag is drum-shaped, and the elastic support rod is in contact with and involved with the filter bag;

[0009] The energy storage limit assembly includes a first sliding sleeve, a tray, an inertia block, a hook, and an elastic blocking rod. The first sliding sleeve is located above the retaining frame and is sleeved on the guide rod. The tray is arranged around the guide rod and is fixedly connected to the upper end of the first sliding sleeve. The inertia block is sleeved on the guide rod and placed on the upper surface of the tray. The hook is fixedly connected to the lower end of the first sliding sleeve. The elastic blocking rod is located below the first sliding sleeve and is elastically connected to the guide rod.

[0010] The transmission assembly comprises a plurality of diagonal support rods, each of which is arranged in a one-to-one correspondence with each of the elastic support rods, each of which is distributed in a circular array around the guide rod, one end of each of which is hinged to the first sliding sleeve, the other end of each of which is hinged to the middle of the elastic support rod, and one end of each of which is close to the guide rod is higher than the other end;

[0011] The pressure difference between the inside and outside of the filter bag squeezes the filter bag inward, the oblique support rod pushes the first sliding sleeve to slide upward, and the hook pushes the elastic barrier rod to move and store energy after the first sliding sleeve moves upward. The hook moves upward until it passes over the elastic barrier rod and then hits the inertia block upward to release energy. The middle part of the elastic support rod bends in the direction close to the guide rod and pulls the filter bag to switch from a convex state to a concave state. In this process, a jet airflow and inertia force from the inside to the outside are generated to peel off part of the dust accumulated on the outer surface of the filter bag. The dust falling off the surface of the filter bag falls to the bottom of the box during the rising stage of the inertia block. After the inertia block falls back, it impacts and squeezes the tray and pushes the first sliding sleeve to slide downward. The oblique support rod pushes the middle part of the elastic support rod to bend in the direction away from the guide rod and pushes the filter bag to return from the concave state to the convex state. The hook passes over the elastic barrier rod downward and then hooks the elastic barrier rod again.

[0012] In some embodiments of the above-mentioned dust collector with automatic cleaning function, the retaining frame includes a second sliding sleeve and a plurality of radial rods, the second sliding sleeve is sleeved on the lower end of the guide rod, the radial rods are distributed in a circular array around the guide rod, and the radial rods are arranged one by one with the elastic support rods. The radial rods are arranged horizontally, one end of the radial rods is fixedly connected to the lower end of the second sliding sleeve, and the other end of the radial rods is hinged to the lower end of the elastic support rod.

[0013] In some embodiments of the above-mentioned dust collector with automatic cleaning function, the retaining frame also includes a plurality of reinforcement rods corresponding one by one to the radial rods, one end of the reinforcement rod is fixedly connected to the middle part of the second sliding sleeve, and the other end of the reinforcement rod is fixedly connected to the middle part of the radial rod.

[0014] In some embodiments of the above-mentioned dust collector with automatic cleaning function, the energy storage limit assembly further includes a first limit plate and a torsion spring, the hook and the elastic barrier rod are respectively provided in multiple and one-to-one correspondence, the first limit plate is fixedly connected to the guide rod, the elastic barrier rod is tilted relative to the guide rod, the upper end of the elastic barrier rod is elastically connected to the first limit plate through the torsion spring, the lower end of the elastic barrier rod is located above the hook tip at the lower end of the hook, and the first limit plate and the elastic barrier rod are located on the inner side of the area surrounded by each of the hooks;

[0015] After the hook moves upward, it pushes the elastic barrier rod to flip upward and compresses or stretches the torsion spring. The hook tip at the lower end of the hook can pass over the elastic barrier rod to leave the hooking state after the elastic barrier rod flips to the point where the lower end of the elastic barrier rod faces upward. After the hook moves downward with the first sliding sleeve, it can interfere with the first limiting plate in the vertical direction. The first limiting plate limits the downward movement of the first sliding sleeve and the hook.

[0016] In some embodiments of the above-mentioned dust collector with automatic cleaning function, the energy storage limit assembly also includes a second limit plate, which is located below the first limit plate and the elastic barrier rod and above the second sliding sleeve, and the second limit plate is located inside the hook surrounding area, and the second limit plate is fixedly connected to the guide rod, and the lower surface of the elastic barrier rod contacts the second limit plate when it is not squeezed upward by the hook, and the hook tip of the hook is located directly below the elastic barrier rod when the lower surface of the elastic barrier rod contacts the second limit plate.

[0017] In some embodiments of the above-mentioned dust collector with automatic cleaning function, the energy storage limit assembly also includes a third limit plate, which is fixedly connected to the upper end of the second sliding sleeve, and the third limit plate is located below the second limit plate. After the third limit plate moves upward with the second sliding sleeve, it can interfere with the second limit plate in the vertical direction, and the second limit plate and the third limit plate limit the upward movement of the second sliding sleeve.

[0018] In some embodiments of the above-mentioned dust collector with automatic cleaning function, the energy storage limit assembly also includes a cylindrical spring, which is mounted on the guide rod and is located between the first limit plate and the lower end of the first sleeve, the lower end of the cylindrical spring is fixedly connected to the first limit plate, and the upper end of the cylindrical spring is in contact with the upper end of the hook or the lower end surface of the first sleeve.

[0019] In some embodiments of the above-mentioned dust collector with automatic cleaning function, the dust collector with automatic cleaning function also includes a hinge assembly, and the hinge function is provided by the hinge assembly, and the hinge assembly includes a fixed seat, a movable handle, an ear plate, and a fixed shaft, the ear plate is fixedly connected in parallel to both sides of one end of the fixed seat, the fixed shaft is located between the two ear plates, the two ends of the fixed shaft are respectively fixedly connected to the two ear plates, one end of the movable handle is rotatably connected to the fixed shaft, the central axis of the fixed shaft is perpendicular to the guide rod, and of the two components that are hinged by the hinge assembly, one component is fixedly connected to the fixed seat, and the other component is fixedly connected to the movable handle.

[0020] In some embodiments of the dust collector with automatic cleaning function, the dust collector with automatic cleaning function further includes an involvement component, the elastic support rod and the filter bag are connected by the involvement component, and the involvement component includes a collar, an involvement rod, a fixed pressing plate, an adjusting pressing plate, and an adjusting nut;

[0021] The sleeve is sleeved on the elastic support rod, the engaging rod is arranged along the radial direction of the guide rod, one end of the engaging rod is fixedly connected with the outer side surface of the sleeve, the surface of the filter bag is provided with a through hole, the other end of the engaging rod passes through the through hole from the inside to the outside and extends to the outside of the filter bag, the fixed pressing plate is located between the filter bag and the sleeve and is fixedly connected to the engaging rod, the side of the fixed pressing plate away from the sleeve is tightly matched with the inner side surface of the filter bag, the adjusting pressing plate and the adjusting nut are located outside the filter bag, the adjusting pressing plate is sleeved on the engaging rod, the side of the adjusting pressing plate close to the filter bag is tightly matched with the outer side surface of the filter bag, the through hole is covered between the fixed pressing plate and the adjusting pressing plate, the adjusting nut is threadedly connected with the engaging rod, the adjusting nut is located on the side of the adjusting pressing plate away from the filter bag, and the adjusting nut is tightly matched with the adjusting pressing plate;

[0022] Each of the elastic support rods is connected to the filter bag via a plurality of the connection components, and the connection components on each of the elastic support rods are arranged at intervals along the connection rod.

[0023] In some embodiments of the dust collector with automatic cleaning function, the box body is cylindrical in shape, the air inlet has a plurality of ports and is distributed in a circular array around the central axis of the box body, the central axis of the air inlet is horizontally arranged and inclined relative to the surface of the box body, and the angle between the central axis of the air inlet and the surface of the box body is between 30 degrees and 60 degrees;

[0024] The dust collector with automatic cleaning function also includes an air intake pipe, a partition, and a suspension rod. The air intake pipe is arranged around the box body, one end of the air intake pipe is used to connect to the air intake source, and the other end of the air intake pipe is closed. Each of the air intake ports is connected to the air intake pipe respectively;

[0025] The partition is cylindrical in shape, and is arranged parallel to the side wall of the box and is located inside the box. The partition is spaced apart from the side wall of the box, and the lower end of the partition is spaced apart from the bottom surface of the box. The upper end of the partition is fixedly connected to the box, and the bag filter assembly is located inside the partition, and the bag filter assembly is spaced apart from the partition.

[0026] The suspension rod is vertically arranged on the central axis of the box body, the upper end of the suspension rod is fixedly connected to the box body, the lower end of the suspension rod is provided with a first conical material guide plate, the cone tip of the first conical material guide plate is arranged upward and is fixedly connected to the lower end of the suspension rod, the lower end of the partition is provided with a second conical material guide plate, the cone tip of the second conical material guide plate is arranged downward, the upper end edge of the second conical material guide plate is arranged along the lower end edge of the partition plate and is fixedly connected to the lower end of the partition plate;

[0027] The lower end of the box body is provided with a third conical material guide plate, the conical tip of the third conical material guide plate is arranged downward, the upper edge of the third conical material guide plate is arranged along the lower edge of the box body and is fixedly connected to the lower end of the box body, the central axis of the first conical material guide plate, the central axis of the second conical material guide plate, and the central axis of the third conical material guide plate are located on the same vertical line, the lower end of the first conical material guide plate is lower than the lower end of the second conical material guide plate, the distance between the lower end of the first conical material guide plate and the third conical material guide plate is equal to the distance between the lower end of the second conical material guide plate and the third conical material guide plate, the ash discharge port is arranged at the conical tip of the third conical material guide plate, and the ash discharge port is equipped with a valve;

[0028] The bag filter assemblies have multiple ones distributed in a circular array around the suspension rod, the distance between adjacent bag filter assemblies is equal to the distance between the bag filter assemblies and the partition, and the distance between the lower end of the bag filter assembly and the first conical guide plate is equal to the distance between the lower end of the bag filter assembly and the second conical guide plate.

[0029] Beneficial effects of the present invention:

[0030] The dust collector with automatic cleaning function provided by the present invention, compared with the timed cleaning and pressure measurement cleaning in the prior art, automatically cleans the filter bag after the blockage degree exceeds the standard, and the trigger mechanism of cleaning is directly related to the blockage degree of the filter bag, and no additional sensor for detecting air pressure and timer are required, and the reliability is higher. In addition, during the switching process between the convex and concave states of the elastic support rod, the filter bag moves in the vertical direction with the elastic support rod. Therefore, in addition to the outward jet airflow effect and the horizontal inertia effect, there is also a vertical inertia effect. In layman's terms, the filter bag blows outward, accompanied by horizontal and vertical shaking. Compared with the pulse airflow cleaning in the prior art, the accumulated dust is impacted in more dimensions. Even if the dust force point is located inside the micropore and supported in the direction of the inside of the filter bag, it can be shaken off during the vertical shaking process and blown out in combination with the jet airflow effect. In addition, the multi-dimensional impact helps to break the agglomerated dust and reduce the adhesion between the dust and the surface of the filter bag, so the cleaning efficiency and cleaning effect are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0032] In order to facilitate the understanding of the technical solution of the present application and reduce the interference of irrelevant lines on the reading of the drawings, Figure 7 and Figure 8 In addition, the elements in other drawings are simplified, and each line represents the cross-sectional or end face profile or shape diagram of an element.

[0033] Figure 1 is a schematic structural diagram of a dust collector with automatic cleaning function in an embodiment of the present application;

[0034] Figure 2 is a schematic diagram of the structure of a bag filter assembly in an embodiment of the present application;

[0035] Figure 3 is a schematic diagram of the structure of the bag filter assembly in the embodiment of the present application in a balanced state;

[0036] Figure 4 It is a structural schematic diagram of the first sliding sleeve in the embodiment of the present application in the stage of continuing to move upward under the action of its own inertia;

[0037] Figure 5 It is a schematic diagram of the structure when the inertia block is knocked away and moves to the highest position in the embodiment of the present application;

[0038] Figure 6 It is a schematic diagram of the structure in which the inertia block falls back to the impact tray to drive the hook and the elastic support rod to reset in the embodiment of the present application;

[0039] Figure 7 is a schematic structural diagram of a hinge assembly in an embodiment of the present application;

[0040] Figure 8 It is a schematic diagram of the structure in which the filter bag is connected to the elastic support rod in the embodiment of the present application;

[0041] Fig. 9 is along Figure 1 Structural schematic diagram of the cross-sectional view of the middle AA line;

[0042] Fig.10 It is a schematic diagram of the structure of the connection between the air intake pipe and each air intake port in the embodiment of the present application.

[0043] Description of reference numerals:

[0044] 100, box body; 102, fan; 104, bag filter assembly; 106, ash outlet; 108, filter bag; 110, air inlet; 112, air outlet; 114, guide rod; 116, elastic support rod; 118, first sliding sleeve; 120, tray; 122, inertia block; 124, hook; 126, elastic stop rod; 128, diagonal support rod; 130, second sliding sleeve; 132, radial rod; 134, reinforcement rod; 136, first limit plate; 138, torsion spring; 140, second limit Plate; 142, the third limit plate; 144, cylindrical spring; 146, fixed seat; 148, movable handle; 150, ear plate; 152, fixed shaft; 154, collar; 156, connecting rod; 158, fixed pressure plate; 160, adjusting pressure plate; 162, adjusting nut; 164, through hole; 166, air inlet pipe; 168, partition; 170, suspension rod; 172, the first conical guide plate; 174, the second conical guide plate; 176, the third conical guide plate; 178, valve; 180, hook tip. DETAILED DESCRIPTION

[0045] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same figure numbers in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings need not be drawn to scale unless otherwise specified. The special word "exemplary" here means "used as an example, embodiment or illustrative". Any embodiment described here as "exemplary" is not necessarily interpreted as being superior to or better than other embodiments. In addition, in order to better illustrate the present application, those skilled in the art should understand that numerous specific details are given in each embodiment below. Without certain specific details, the present application can also be implemented. In some embodiments, methods, means and elements well known to those skilled in the art are not described in detail to highlight the subject matter of the present application.

[0046] Combination Figure 1 and Figure 2As shown, the embodiment of the present application provides a dust collector with automatic cleaning function, including a box body 100, a fan 102, and at least one bag filter assembly 104. The bottom of the box body 100 is provided with a dust discharge port 106. The bag filter assembly 104 includes a filter bag 108. The bag filter assembly 104 is installed inside the box body 100 and relies on the filter bag 108 to separate the air inlet 110 and the exhaust port 112 of the box body 100. The fan 102 is installed at the air inlet 110 or the exhaust port 112. The fan 102 drives the air flow to enter the box body 100 from the air inlet 110 and be discharged from the exhaust port 112 after passing through the filter bag 108. The dust accumulated on the surface of the filter bag 108 is removed during the cleaning process. The filter bag 108 is provided with a frame, a guide rod 114, an energy storage limit assembly, and a transmission assembly. The guide rod 114 is vertically arranged, and the upper end of the guide rod 114 is fixedly connected to the box body 100; the frame includes a retaining frame, a plurality of elastic support rods 116, and each elastic support rod 116 is arranged in a circular array around the guide rod 114. The retaining frame is slidably connected to the lower end of the guide rod 114 in the vertical direction. The upper end of the elastic support rod 116 is hinged to the edge of the exhaust port 112 located at the top of the box body 100, and the lower end of the elastic support rod 116 is hinged to the retaining frame. The elastic support rod 116 and the retaining frame are wrapped in the filter bag. On the inner side of 108, the bag opening of the filter bag 108 is arranged around the exhaust port 112 and is tightly fitted and fixedly connected to the edge of the exhaust port 112 (it can be glued or fixed to the edge of the exhaust port 112 by using a flange and bolts), and the elastic support rod 116 provides a supporting force from the inside to the outside to the filter bag 108 so that the shape of the filter bag 108 is drum-shaped. The elastic support rod 116 is in contact with the filter bag 108 and is involved in the arrangement; the energy storage limit assembly includes a first sliding sleeve 118, a tray 120, an inertia block 122, a hook 124, and an elastic blocking rod 126. The first sliding sleeve 118 is located above the retaining frame and is sleeved on the guide rod 114. The tray 120 is arranged around the guide rod 114 and is fixedly connected to the guide rod 114. The upper end of the first sleeve 118 is fixedly connected, the inertia block 122 is sleeved on the guide rod 114 and placed on the upper surface of the tray 120, the hook 124 is fixedly connected to the lower end of the first sleeve 118, and the elastic blocking rod 126 is located below the first sleeve 118 and elastically connected to the guide rod 114; the transmission assembly includes a plurality of diagonal support rods 128, each support rod is arranged in a one-to-one correspondence with each elastic support rod 116, and each diagonal support rod 128 is distributed in a circular array around the guide rod 114, one end of the diagonal support rod 128 is hinged to the first sleeve 118, and the other end of the diagonal support rod 128 is hinged to the middle part of the elastic support rod 116, and one end of the diagonal support rod 128 close to the guide rod 114 is higher than the other end.

[0047] Combination Figures 2 to 6As shown, the pressure difference between the inside and outside of the filter bag 108 squeezes the filter bag 108 inward, the diagonal support rod 128 pushes the first sliding sleeve 118 to slide upward, and the hook 124 moves upward with the first sliding sleeve 118 and pushes the elastic blocking rod 126 to move and store energy. After the hook 124 moves upward and passes over the elastic blocking rod 126, the tray 120 knocks the inertia block 122 upward to release energy, and the middle part of the elastic support rod 116 bends toward the direction close to the guide rod 114 and pulls the filter bag 108 to switch from a convex state to a concave state, and in this process, a movement from inside to outside is generated. The jet airflow and inertial force peel off part of the dust accumulated on the outer surface of the filter bag 108, and the dust falling off the surface of the filter bag 108 falls to the bottom of the box body 100 during the ascending stage of the inertia block 122. After the inertia block 122 falls back, it impacts the extrusion tray 120 and pushes the first sliding sleeve 118 to slide downward. The diagonal support rod 128 pushes the middle part of the elastic support rod 116 to bend in the direction away from the guide rod 114 and pushes the filter bag 108 to return from the concave state to the convex state. The hook 124 passes downward over the elastic barrier rod 126 and then hooks the elastic barrier rod 126 again.

[0048] The fan 102 in this embodiment is installed at the exhaust port 112. During operation, the fan 102 discharges the air inside the filter bag 108 from the exhaust port 112, so that a pressure difference is generated between the inside and the outside of the filter bag 108, and the dust-containing air outside the filter bag 108 is sucked into the inside of the filter bag 108. In this process, since the size of the micropores on the surface of the filter bag 108 is small, the dust particles are blocked on the outer surface of the filter bag 108 because their own size is larger than the micropore size or because the width of the Brownian motion path is larger than the micropore size. The external dust-containing air enters the box 100 from the air inlet 110 to replenish the pressure, and dust removal is continuously performed in this way, and clean air is output from the exhaust port 112. As time goes by, the amount of dust accumulated on the surface of the filter bag 108 continues to increase, the air permeability of the filter bag 108 continues to decrease, the pressure difference between the inside and outside of the filter bag 108 continues to increase, the extrusion force from the outside to the inside of the filter bag 108 exerted by the pressure difference continues to increase, and the degree of outward bending of the elastic support rod 116 continues to decrease. When the extrusion force on the outside of the filter bag 108 increases to a certain extent, such as Figure 3 As shown, the outward thrust generated by the diagonal support rod 128 on the middle part of the elastic support rod 116 is balanced with the inward extrusion force on the filter bag 108. In this balanced state, the elastic support rod 116 is still in an outward bending state. Figure 3The vertical dotted line in is the line connecting the upper and lower ends of the elastic support rod 116. The line is a vertical line. The elastic support rod 116 is a straight rod in its natural state, that is, it is a straight rod before being assembled into a skeleton and is not subjected to lateral extrusion force. The elastic support rod 116 itself has a certain elasticity, for example, it is a steel rod, which can provide stable support for the filter bag 108 in an outwardly bent state. In the equilibrium state, the extrusion force on the outer side of the filter bag 108 continues to increase, causing the elastic support rod 116 to break through the equilibrium state and bend inward. At the same time, the hook 124 just breaks away from the elastic barrier rod 126, and the elastic force of the elastic support rod 116 itself and the potential energy accumulated in the elastic barrier rod 126 are released synchronously, and are respectively transmitted to the inertia block 122 through the diagonal support rod 128 and the first sliding sleeve 118, and converted into kinetic energy of the inertia block 122. The inertial motion of the first sliding sleeve 118 itself pulls the middle part of the elastic support rod 116 inward through the diagonal support rod 128, so that the elastic support rod 116 passes the natural state (such as Figure 3 The dotted line in the figure continues to bend inwards, combining Figure 4 As shown, as time goes by, the upward movement speed of the inertia block 122 continues to increase. When the upward movement speed of the inertia block 122 is greater than the upward movement speed of the first sliding sleeve 118, the inertia block 122 separates from the tray 120 and is knocked upward. The elastic force of the elastic support rod 116 itself is limited. Under the traction of the diagonal support rod 128, it is not enough to restore to the natural state and cannot bend outward beyond the natural state. The inertia block 122 then gradually slows down and finally falls. When it falls to contact the tray 120, the downward movement speed is the largest. At this time, it impacts the tray 120 downward, and the kinetic energy is transferred to the first sliding sleeve 118. The first sliding sleeve 118 moves downward, and the diagonal support rod 128 pushes the elastic support rod 116 to bend outward, so that the elastic support rod 116 reaches the equilibrium state first (as shown in FIG. Figure 3 As shown in FIG. 1 , under the inertia of the inertia block 122 and the inertia of the first sliding sleeve 118, the first sliding sleeve 118 continues to move downward, and the diagonal support rod 128 continues to exert an outward thrust on the elastic support rod 116. After the first elastic support rod 116 breaks out of the equilibrium state, the hook 124 passes over the elastic blocking rod 126, and then the elastic support rod 116 returns to the equilibrium state. Figure 2The original state in the filter bag 108 is a drum shape, and the hook 124 re-hooks the elastic blocking rod 126. During the process of the elastic support rod 116 deforming inward to the equilibrium state, the movement speed is slow, and the internal air pressure of the filter bag 108 cannot be switched to be greater than the external air pressure, nor is it enough to provide sufficient inertia for the dust accumulated on the outer side of the filter bag 108 to escape from the filter bag 108. However, after the elastic support rod 116 deforms inward to break the equilibrium state, the elastic support rod 116 moves inward at a faster speed, so that the air inside the filter bag 108 is compressed, while the air outside the filter bag 108 is still in a state of less than atmospheric pressure. At this time, the air pressure outside is greater than the air pressure inside to the air pressure inside is greater than the air pressure outside. A jet airflow from the inside to the outside is generated in the micropores of the filter bag 108. At the same time, the filter bag 108 moves inward quickly under the influence of the elastic support rod 116, and the dust accumulated on the outer side of the filter bag 108 is removed. The dust provides a larger inertia effect (relative to the filter bag 108). Under the combined effect of inertia and the jet airflow, most of the dust accumulated on the outer side of the filter bag 108 breaks away from the filter bag 108 and falls down. During the rising and falling stages of the inertia block 122, the dust that breaks away from the filter bag 108 is provided with falling time. When the inertia block 122 falls back to contact with the tray 120, most of the separated dust falls to the bottom of the box body 100. The separated dust is usually in a clumping or agglomeration state, so it will not float in the air for too long. After the agglomerated dust breaks away from the filter bag 108, it can be regarded as a free fall or horizontal projection motion, while the inertia block 122 is an upward parabolic motion. The agglomerated dust gradually accelerates to fall, and after the inertia block 122 is knocked away, it needs to first decelerate and move upward to zero speed and then accelerate downward (combined with Figure 5 and Figure 6 As shown in the figure, the time required for the agglomerated dust to fall to the bottom of the box 100 after it detaches from the filter bag 108 is shorter than the time required for the inertia block 122 to fall back onto the tray 120, which can prevent the filter bag 108 from colliding with the detached agglomerated dust during the process of returning to the drum-shaped state. Under the action of the jet airflow, the agglomerated dust actually moves outward in a parabolic motion. Even if the agglomerated dust does not fall to the bottom of the box 100 in time, it has already moved away from the filter bag 108 in the horizontal direction, so it can be ensured that the filter bag 108 will not collide with the detached agglomerated dust. In addition, after the inertia block 122 impacts the tray 120, the diagonal support rod 128 pushes the elastic support rod 116 to bend outward to the initial drum-shaped state, and the movement speed actually gradually decreases, thereby further providing sufficient time for the agglomerated dust to fall to the box 100, thereby realizing automatic dust cleaning.

[0049] It can be seen that the dust collector with automatic cleaning function provided in this embodiment, compared with the timed cleaning and pressure measurement cleaning in the prior art, automatically cleans the filter bag 108 after the blockage degree exceeds the standard. The cleaning trigger mechanism is directly related to the blockage degree of the filter bag 108. It does not require an additional sensor for detecting air pressure or a timer, and is more reliable. In addition, during the switching process of the elastic support rod 116 between the convex and concave states, the filter bag 108 moves in the vertical direction along with the elastic support rod 116. Therefore, in addition to the outward jet airflow effect and the horizontal inertia effect, there is also the vertical inertia effect. In layman's terms, the filter bag 108 blows air outwards, accompanied by horizontal and vertical shaking. Compared with the pulse airflow cleaning in the prior art, the accumulated dust is impacted in more dimensions. Even if the dust fulcrum is located inside the micropore and is supported in the direction of the inside of the filter bag 108, it can be shaken off during the vertical shaking process and blown out in combination with the jet airflow effect. In addition, the multi-dimensional impact helps to break up the agglomerated dust and reduce the adhesion between the dust and the surface of the filter bag 108. Therefore, the cleaning efficiency and cleaning effect are improved.

[0050] In some exemplary implementations of the present embodiment, the retaining frame includes a second sliding sleeve 130 and a plurality of radial rods 132. The second sliding sleeve 130 is sleeved on the lower end of the guide rod 114. The radial rods 132 are distributed in a circular array around the guide rod 114. The radial rods 132 are arranged in a one-to-one correspondence with the elastic support rods 116. The radial rods 132 are arranged horizontally. One end of the radial rod 132 is fixedly connected to the lower end of the second sliding sleeve 130, and the other end of the radial rod 132 is hinged to the lower end of the elastic support rod 116.

[0051] Preferably, the second sleeve 130 and the guide rod 114 are matched with a spline pair, and the retaining frame provides guidance for the vertical movement of the lower end of the elastic support rod 116, while preventing the upper and lower ends of the elastic support rod 116 from twisting in the circumferential direction around the guide rod 114, thereby improving the stability and reliability of state switching.

[0052] In some exemplary implementations of this embodiment, the retaining frame also includes a plurality of reinforcement rods 134 corresponding one to one with the radiation rods 132 , one end of the reinforcement rod 134 is fixedly connected to the middle of the second sliding sleeve 130 , and the other end of the reinforcement rod 134 is fixedly connected to the middle of the radiation rod 132 .

[0053] The reinforcement rod 134 is used to improve the bending strength of the radiation rod 132 .

[0054] In some exemplary implementations of the present embodiment, the energy storage limit assembly further includes a first limit plate 136, a torsion spring 138, the hook 124 and the elastic barrier rod 126 are respectively provided with a plurality of and one-to-one correspondence, the first limit plate 136 is fixedly connected to the guide rod 114, the elastic barrier rod 126 is tilted relative to the guide rod 114, the upper end of the elastic barrier rod 126 is elastically connected to the first limit plate 136 through the torsion spring 138, the lower end of the elastic barrier rod 126 is located above the hook tip 180 at the lower end of the hook 124, and the first limit plate 136 and the elastic barrier rod 1 26 is located on the inner side of the area surrounded by each hook 124; after the hook 124 moves upward, it pushes the elastic barrier rod 126 to flip upward and compress or stretch the torsion spring 138, and the hook tip 180 at the lower end of the hook 124 can pass over the elastic barrier rod 126 to leave the hooking state after the elastic barrier rod 126 flips to the point where the lower end of the elastic barrier rod 126 faces upward, and the hook 124 can interfere with the first limiting plate 136 in the vertical direction after moving downward with the first sliding sleeve 118, and the first limiting plate 136 limits the downward movement of the first sliding sleeve 118 and the hook 124.

[0055] In some exemplary embodiments of the present embodiment, the energy storage limit assembly also includes a second limit plate 140, which is located below the first limit plate 136 and the elastic stop rod 126 and above the second sliding sleeve 130, and the second limit plate 140 is located inside the area surrounded by the hook 124. The second limit plate 140 is fixedly connected to the guide rod 114, and the lower surface of the elastic stop rod 126 contacts the second limit plate 140 when it is not squeezed upward by the hook 124, and the hook tip 180 of the hook 124 is located directly below the elastic stop rod 126 when the lower surface of the elastic stop rod 126 contacts the second limit plate 140.

[0056] In some exemplary embodiments of the present embodiment, the energy storage limit assembly also includes a third limit plate 142, which is fixedly connected to the upper end of the second sleeve 130, and is located below the second limit plate 140. After the third limit plate 142 moves upward with the second sleeve 130, it can interfere with the second limit plate 140 in the vertical direction, and the second limit plate 140 and the third limit plate 142 limit the upward movement of the second sleeve 130.

[0057] Combination Figure 5 and Figure 6 As shown, in some exemplary embodiments of the present embodiment, the energy storage limit assembly also includes a cylindrical spring 144, which is sleeved on the guide rod 114 and located between the first limit plate 136 and the lower end of the first sleeve 118, the lower end of the cylindrical spring 144 is fixedly connected to the first limit plate 136, and the upper end of the cylindrical spring 144 is in contact with the upper end of the hook 124 or the lower end surface of the first sleeve 118.

[0058] After the hook 124 moves downward, under the inertia of the inertia block 122 and the first sleeve 118, the hook 124 compresses the cylindrical spring 144 downward until the hook 124 hooks the elastic blocking rod 126 again, and the cylindrical spring 144 rebounds and pushes the first sleeve 118 to move upward a short distance. At the same time, the hook 124 pushes the elastic blocking rod 126 to flip upward a certain angle, and the torsion spring 138 is stretched or compressed. Then, under the elastic force of the torsion spring 138, the hook 124 is driven to move downward again. This cycle is repeated for several cycles. During this cycle, the filter bag 108 shakes back and forth toward the inside and outside, which is equivalent to applying mechanical vibration to the filter bag 108, which helps to break up the agglomerated dust that has not fallen off the outer side of the filter bag 108, and reduces the adhesion of the agglomerated dust on the surface of the filter bag 108, so that it is easy to fall off after the next cleaning is triggered.

[0059] Combination Figure 2 and Figure 7 As shown, in some exemplary embodiments of the present embodiment, the dust collector with automatic cleaning function also includes a hinge assembly, and the hinge function is provided by the hinge assembly. The hinge assembly includes a fixed seat 146, a movable handle 148, an ear plate 150, and a fixed shaft 152. The ear plate 150 is fixedly connected in parallel to both sides of one end of the fixed seat 146, and the fixed shaft 152 is located between the two ear plates 150. Both ends of the fixed shaft 152 are respectively fixedly connected to the two ear plates 150, and one end of the movable handle 148 is rotatably connected to the fixed shaft 152. The central axis of the fixed shaft 152 is perpendicular to the guide rod 114. Among the two components hinged by the hinge assembly, one component is fixedly connected to the fixed seat 146, and the other component is fixedly connected to the movable handle 148.

[0060] For example, one component is the elastic support rod 116, which is fixedly connected to the fixed seat 146, and the other component is the diagonal support rod 128, which is fixedly connected to the movable handle 148. The central axis of the fixed shaft 152 is perpendicular to the guide rod 114, which helps to define the active plane of the elastic support rod 116 during the bending deformation process. The active plane is defined as passing through the central axis of the guide rod 114, which helps to improve the stability and reliability of the switching state of the elastic support rod 116.

[0061] Combination Figure 8As shown, in some exemplary implementations of the present embodiment, the dust collector with automatic cleaning function also includes an involvement component, the elastic support rod 116 and the filter bag 108 are involved and arranged through the involvement component, and the involvement component includes a collar 154, an involvement rod 156, a fixed pressure piece 158, an adjustment pressure piece 160, and an adjustment nut 162; the collar 154 is sleeved on the elastic support rod 116, and the involvement rod 156 is arranged along the radial direction of the guide rod 114, one end of the involvement rod 156 is fixedly connected to the outer side of the collar 154, and a through hole 164 is provided on the surface of the filter bag 108, and the other end of the involvement rod 156 passes through the through hole 164 from the inside to the outside and extends to the outside of the filter bag 108, the fixed pressure piece 158 is located between the filter bag 108 and the collar 154 and is fixedly connected to the involvement rod 156, and the fixed pressure piece 158 is located between the filter bag 108 and the collar 154 and is fixedly connected to the involvement rod 156. The side of the sheet 158 ​​away from the ring 154 is pressed and fitted with the inner side of the filter bag 108, the adjusting pressure sheet 160 and the adjusting nut 162 are located outside the filter bag 108, the adjusting pressure sheet 160 is sleeved on the involvement rod 156, and the side of the adjusting pressure sheet 160 close to the filter bag 108 is pressed and fitted with the outer side of the filter bag 108, the through hole 164 is covered between the fixed pressure sheet 158 ​​and the adjusting pressure sheet 160, the adjusting nut 162 is threadedly connected to the involvement rod 156, the adjusting nut 162 is located on the side of the adjusting pressure sheet 160 away from the filter bag 108, and the adjusting nut 162 is pressed and fitted with the adjusting pressure sheet 160; each elastic support rod 116 is connected to the filter bag 108 through a plurality of involvement components, and the involvement components on each elastic support rod 116 are arranged at intervals along the elastic support rod 116.

[0062] Under the involvement of the involvement assembly, the elastic support rod 116 not only supports the filter bag 108 outward, but also provides an inward traction effect on the filter bag 108. The importance of this effect is particularly reflected in that after the elastic support rod 116 moves inward to break through the equilibrium state, the elastic support rod 116 moves inward rapidly, pulling the filter bag 108 inward together, thereby generating horizontal inertia, a jet airflow effect from the inside to the outside, and vertical inertia.

[0063] Combination Figure 1 , Fig. 9 and Fig.10As shown, in some exemplary embodiments of the present embodiment, the box body 100 is cylindrical in shape, and the air inlet 110 has a plurality of air inlets 110 and is distributed in a circular array around the central axis of the box body 100. The central axis of the air inlet 110 is horizontally arranged and tilted relative to the surface of the box body 100. The angle between the central axis of the air inlet 110 and the surface of the box body 100 is between 30 degrees and 60 degrees. The dust collector with automatic cleaning function also includes an air inlet pipe 166, a partition 168, and a suspension rod 170. The air inlet pipe 166 is arranged around the box body 100, one end of the air inlet pipe 166 is used to be connected to the air inlet source, and the other end of the air inlet pipe 166 is closed. Each air inlet 110 is connected to the air inlet pipe 166 respectively; the partition 1 The shape of 68 is cylindrical, the partition 168 is arranged parallel to the side wall of the box body 100 and is located inside the box body 100, the partition 168 is spaced apart from the side wall of the box body 100, the lower end of the partition 168 is spaced apart from the bottom surface of the box body 100, the upper end of the partition 168 is fixedly connected to the box body 100, the bag filter assembly 104 is located inside the partition 168, and the bag filter assembly 104 is spaced apart from the partition 168; the suspension rod 170 is vertically arranged on the central axis of the box body 100, the upper end of the suspension rod 170 is fixedly connected to the box body 100, the lower end of the suspension rod 170 is provided with a first conical guide plate 172, the cone tip of the first conical guide plate 172 is arranged upward and is fixedly connected to the lower end of the suspension rod 170, and the partition 1 A second conical guide plate 174 is provided at the lower end of the box 100, the cone tip of the second conical guide plate 174 is arranged downward, the upper edge of the second conical guide plate 174 is arranged along the lower edge of the partition 168 and is fixedly connected to the lower end of the partition 168; a third conical guide plate 176 is provided at the lower end of the box 100, the cone tip of the third conical guide plate 176 is arranged downward, the upper edge of the third conical guide plate 176 is arranged along the lower edge of the box 100 and is fixedly connected to the lower end of the box 100, the central axis of the first conical guide plate 172, the central axis of the second conical guide plate 174, and the central axis of the third conical guide plate 176 are located on the same vertical line, and the lower end of the first conical guide plate 172 is lower than the second conical guide plate 174. The distance between the lower end of the conical guide plate 174, the lower end of the first conical guide plate 172 and the third conical guide plate 176 is equal to the distance between the lower end of the second conical guide plate 174 and the third conical guide plate 176, the ash discharge port 106 is arranged at the cone tip of the third conical guide plate 176, and the ash discharge port 106 is installed with a valve 178; the bag filter assembly 104 has multiple and is distributed in a circular array around the suspension rod 170, the distance between adjacent bag filter assemblies 104 is equal to the distance between the bag filter assembly 104 and the partition 168, and the distance between the lower end of the bag filter assembly 104 and the first conical guide plate 172 is equal to the distance between the lower end of the bag filter assembly 104 and the second conical guide plate 174.

[0064] The air inlet 110 has the same inclination direction in the circumferential direction of the housing 100 (eg Fig. 9and Fig.10 As shown, the end of each air inlet 110 away from the box 100 is tilted in the counterclockwise direction). The tilted air inlet 110 helps to form a spiral directional airflow inside the box 100, reduce turbulence, help prevent dust from floating and stagnating in the turbulent area, and improve the dust falling efficiency. The first conical guide plate 172, the second conical guide plate 174, and the third conical guide plate 176 are used to guide the falling dust to facilitate the dust to slide to the bottom of the box 100 (i.e., the cone tip position of the third conical guide plate 176). Preferably, the first conical guide plate 172 is perpendicular to the third conical guide plate 176, and the dust-laden air between the partition 168 and the side wall of the box 100 enters the inner space of the partition 168 from the first conical guide plate 172 and the second conical guide plate 174 in a spiral motion to participate in During the filtration of the filter bag 108, since the lower end of the first conical guide plate 172 is lower than the lower end of the second conical guide plate 174, and the areas near the cone tips of the first conical guide plate 172 and the third conical guide plate 176 form a static flow area, the air flow speed here is very slow. Since dust-laden air is input at various locations in the circumferential direction, the air pressure around the area between the lower end of the first conical guide plate 172 and the third conical guide plate 176 mostly cancels each other out in the diameter direction, and the dust that slides into the static flow area is not easily blown up by the input dust-laden air.

[0065] It should be noted that what is difficult to understand about the present application is how the hook 124 moves downward and passes over the elastic barrier rod 126 during the process of re-hooking the elastic barrier rod 126. In fact, the hook 124 is formed by bending a steel bar and has a certain elasticity as a whole. The end of the hook tip 180 close to the guide rod 114 is tilted upward, and there is a steel bar of a certain length between the hook tip 180 and the top of the hook 124. Due to the large length, when the hook tip 180 is subjected to a force in the direction away from the guide rod 114, it is easy to bend and deflect in the direction away from the guide rod 114. Therefore, when the hook 124 moves downward until the hook tip 180 collides or squeezes the elastic barrier rod 126, the elastic barrier rod 126 will exert a force on the tilted hook tip 180 in the direction away from the guide rod 114, thereby stretching the hook 124 open, and the hook tip of the hook 124 Once 180 passes over the elastic barrier rod 126 downward and hooks the elastic barrier rod 126, during its upward movement, as long as the lower end of the elastic barrier rod 126 has not flipped upward to tilt upward, the direction of the force applied to the hook tip 180 of the hook 124 is close to the guide rod 114, thereby causing the hook 124 to retract. After the lower end of the elastic barrier rod 126 is flipped upward to tilt upward, the direction of the force applied to the hook tip 180 of the hook 124 is away from the elastic barrier rod 126, so the hook 124 is gradually stretched open. As the elastic barrier rod 126 continues to flip upward, the length of the interference portion between the elastic barrier rod 126 and the hook tip 180 of the hook 124 in the vertical direction gradually decreases. Therefore, after the hook 124 continues to move upward for an end distance, it will pass over the elastic barrier rod 126 upward and separate from the elastic barrier rod 126, thus getting rid of the hooking state.

[0066] The "one-to-one correspondence" in this embodiment means, for example, that multiple a's and multiple b's correspond one-to-one, which means that one a corresponds to one b, and there is no one-to-many situation and no no correspondence, that is, there is no one a corresponding to multiple b's, no one b corresponding to multiple a's, no a without a corresponding b, and no b without an a corresponding to it. The "central axis" in this embodiment refers to the central axis of a rotating body or a rotating surface (there is no ideal rotating surface in reality because there is thickness). For example, the central axis of a circular tube refers to the set of central points of each cross section along the length direction of the circular tube. The "upper and lower" in this implementation refers to the position of the dust collector with automatic cleaning function relative to the ground in the working state. For example, during operation, the box 100 is vertical, so the end of the box 100 away from the ground is the upper end, and the end close to the ground is the lower end.

[0067] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A dust collector with an automatic cleaning function, comprising a housing (100), a fan (102), and at least one bag filter assembly (104); a dust discharge port (106) is provided at the bottom of the housing (100); the bag filter assembly (104) comprises a filter bag (108); the bag filter assembly (104) is installed inside the housing (100) and relies on the filter bag (108) to separate an air inlet (110) and an air outlet (112) of the housing (100); the fan (102) is installed at the air inlet (110) or the air outlet (112); the fan (102) drives an air flow from the air inlet (110) into the housing (100) and is discharged from the air outlet (112) after passing through the filter bag (108); dust accumulated on the surface of the filter bag (108) falls off during the dust cleaning process and is discharged from the dust discharge port (106); and the dust collector (104) is characterized in that: The bag filter assembly (104) further comprises a frame located inside the filter bag (108), a guide rod (114), an energy storage limit assembly, and a transmission assembly; the guide rod (114) is arranged vertically, and the upper end of the guide rod (114) is fixedly connected to the box (100); The skeleton comprises a retaining frame and a plurality of elastic support rods (116), each of the elastic support rods (116) being arranged in a circular array around the guide rod (114), the retaining frame being slidably connected to the lower end of the guide rod (114) in a vertical direction, the upper end of the elastic support rod (116) being hinged to the edge of the exhaust port (112) located at the top of the box body (100), the lower end of the elastic support rod (116) being hinged to the retaining frame, the elastic support rod (116) and the retaining frame being wrapped around the inner side of the filter bag (108), the bag opening of the filter bag (108) being arranged around the exhaust port (112) and being tightly fitted and fixedly connected to the edge of the exhaust port (112), the elastic support rod (116) providing a supporting force from the inside to the outside to the filter bag (108) so that the filter bag (108) is in a drum shape, and the elastic support rod (116) is in contact with and connected to the filter bag (108); The energy storage limit assembly comprises a first sliding sleeve (118), a tray (120), an inertia block (122), a hook (124), and an elastic blocking rod (126); the first sliding sleeve (118) is located above the retaining frame and sleeved on the guide rod (114); the tray (120) is arranged around the guide rod (114) and fixedly connected to the upper end of the first sliding sleeve (118); the inertia block (122) is sleeved on the guide rod (114) and placed on the upper surface of the tray (120); the hook (124) is fixedly connected to the lower end of the first sliding sleeve (118); and the elastic blocking rod (126) is located below the first sliding sleeve (118) and elastically connected to the guide rod (114); The transmission assembly comprises a plurality of diagonal support rods (128), each of the support rods being arranged in one-to-one correspondence with each of the elastic support rods (116), each of the diagonal support rods (128) being distributed in a circular array around the guide rod (114), one end of the diagonal support rod (128) being hinged to the first sliding sleeve (118), the other end of the diagonal support rod (128) being hinged to the middle of the elastic support rod (116), and one end of the diagonal support rod (128) close to the guide rod (114) being higher than the other end; The pressure difference between the inside and outside of the filter bag (108) presses the filter bag (108) inward, the diagonal support rod (128) pushes the first sliding sleeve (118) to slide upward, and the hook (124) moves upward with the first sliding sleeve (118) and pushes the elastic blocking rod (126) to move and store energy. The hook (124) moves upward until it passes over the elastic blocking rod (126) and then knocks the inertia block (122) upward to release energy. The middle part of the elastic support rod (116) bends in a direction close to the guide rod (114) and pulls the filter bag (108) to switch from a convex state to a concave state. In this process, a jet airflow and an inertia block (122) from the inside to the outside are generated. The inertia block (122) is used to peel off part of the dust accumulated on the outer surface of the filter bag (108) by force, and the dust falling off the surface of the filter bag (108) falls to the bottom of the box body (100) during the ascending stage of the inertia block (122). After the inertia block (122) falls back, it impacts and squeezes the tray (120) and pushes the first sliding sleeve (118) to slide downward. The diagonal support rod (128) pushes the middle part of the elastic support rod (116) to bend in a direction away from the guide rod (114) and pushes the filter bag (108) to return from a concave state to a convex state. The hook (124) passes over the elastic blocking rod (126) downward and then hooks the elastic blocking rod (126) again.

2. The dust collector with automatic cleaning function according to claim 1, characterized in that: The retaining frame comprises a second sliding sleeve (130) and a plurality of radial rods (132); the second sliding sleeve (130) is sleeved on the lower end of the guide rod (114); the radial rods (132) are arranged in a circular array around the guide rod (114); the radial rods (132) are arranged in a one-to-one correspondence with the elastic support rods (116); the radial rods (132) are arranged horizontally; one end of the radial rods (132) is fixedly connected to the lower end of the second sliding sleeve (130); and the other end of the radial rods (132) is hinged to the lower end of the elastic support rod (116).

3. The dust collector with automatic cleaning function according to claim 2, characterized in that: The retaining frame further comprises a plurality of reinforcing rods (134) corresponding one to the radiating rods (132), one end of the reinforcing rod (134) being fixedly connected to the middle portion of the second sliding sleeve (130), and the other end of the reinforcing rod (134) being fixedly connected to the middle portion of the radiating rod (132).

4. The dust collector with automatic cleaning function according to claim 2, characterized in that: The energy storage limit assembly further comprises a first limit plate (136) and a torsion spring (138); the hook (124) and the elastic barrier rod (126) are respectively provided in a plurality and are arranged in a one-to-one correspondence; the first limit plate (136) is fixedly connected to the guide rod (114); the elastic barrier rod (126) is arranged tilted relative to the guide rod (114); the upper end of the elastic barrier rod (126) is elastically connected to the first limit plate (136) via the torsion spring (138); the lower end of the elastic barrier rod (126) is located above the hook tip (180) at the lower end of the hook (124); and the first limit plate (136) and the elastic barrier rod (126) are located on the inner side of the area surrounded by each of the hooks (124); After the hook (124) moves upward, it pushes the elastic barrier rod (126) to flip upward and compress or stretch the torsion spring (138); the hook tip (180) at the lower end of the hook (124) can pass over the elastic barrier rod (126) to escape from the hooking state after the elastic barrier rod (126) flips to the point where the lower end of the elastic barrier rod (126) faces upward; after the hook (124) moves downward with the first sliding sleeve (118), it can interfere with the first limiting plate (136) in the vertical direction; the first limiting plate (136) limits the downward movement of the first sliding sleeve (118) and the hook (124).

5. The dust collector with automatic cleaning function according to claim 4, characterized in that: The energy storage limit assembly also includes a second limit plate (140), the second limit plate (140) is located below the first limit plate (136) and the elastic stop rod (126) and above the second sliding sleeve (130), the second limit plate (140) is located inside the area surrounded by the hook (124), the second limit plate (140) is fixedly connected to the guide rod (114), the lower surface of the elastic stop rod (126) is in contact with the second limit plate (140) when not being pressed upward by the hook (124), and the hook tip (180) of the hook (124) is located directly below the elastic stop rod (126) when the lower surface of the elastic stop rod (126) is in contact with the second limit plate (140).

6. The dust collector with automatic cleaning function according to claim 5, characterized in that: The energy storage limit plate assembly further comprises a third limit plate (142), the third limit plate (142) being fixedly connected to the upper end of the second sliding sleeve (130), the third limit plate (142) being located below the second limit plate (140), and the third limit plate (142) being able to interfere with the second limit plate (140) in a vertical direction after moving upward with the second sliding sleeve (130), and the second limit plate (140) and the third limit plate (142) limiting the upward movement of the second sliding sleeve (130).

7. The dust collector with automatic cleaning function according to claim 5, characterized in that: The energy storage limit assembly also includes a cylindrical spring (144), which is sleeved on the guide rod (114) and located between the first limit plate (136) and the lower end of the first sliding sleeve (118), the lower end of the cylindrical spring (144) is fixedly connected to the first limit plate (136), and the upper end of the cylindrical spring (144) is in contact with the upper end of the hook (124) or the lower end surface of the first sliding sleeve (118).

8. The dust collector with automatic cleaning function according to any one of claims 1 to 7, characterized in that: The dust collector with automatic cleaning function also includes a hinge assembly, and the hinge function is provided by the hinge assembly. The hinge assembly includes a fixed seat (146), a movable handle (148), an ear plate (150), and a fixed shaft (152). The ear plate (150) is fixedly connected in parallel to both sides of one end of the fixed seat (146), and the fixed shaft (152) is located between the two ear plates (150). The two ends of the fixed shaft (152) are respectively fixedly connected to the two ear plates (150). One end of the movable handle (148) is rotatably connected to the fixed shaft (152). The central axis of the fixed shaft (152) is perpendicular to the guide rod (114). Among the two components that are hinged by the hinge assembly, one component is fixedly connected to the fixed seat (146), and the other component is fixedly connected to the movable handle (148).

9. The dust collector with automatic cleaning function according to claim 1, characterized in that: The dust collector with automatic cleaning function also includes a connection assembly, the elastic support rod (116) and the filter bag (108) are connected via the connection assembly, and the connection assembly includes a collar (154), a connection rod (156), a fixed pressing plate (158), an adjusting pressing plate (160), and an adjusting nut (162); The collar (154) is sleeved on the elastic support rod (116), the connecting rod (156) is arranged along the radial direction of the guide rod (114), one end of the connecting rod (156) is fixedly connected to the outer side of the collar (154), a through hole (164) is provided on the surface of the filter bag (108), the other end of the connecting rod (156) passes through the through hole (164) from the inside to the outside and extends to the outside of the filter bag (108), the fixed pressing plate (158) is located between the filter bag (108) and the collar (154) and is fixedly connected to the connecting rod (156), and a side of the fixed pressing plate (158) away from the collar (154) is pressed tightly against the inner side of the filter bag (108). The adjusting pressing plate (160) and the adjusting nut (162) are located outside the filter bag (108); the adjusting pressing plate (160) is sleeved on the connecting rod (156); a side of the adjusting pressing plate (160) close to the filter bag (108) is tightly fitted with an outer side of the filter bag (108); the through hole (164) is covered between the fixed pressing plate (158) and the adjusting pressing plate (160); the adjusting nut (162) is threadedly connected to the connecting rod (156); the adjusting nut (162) is located on a side of the adjusting pressing plate (160) away from the filter bag (108); and the adjusting nut (162) is tightly fitted with the adjusting pressing plate (160); Each of the elastic support rods (116) is connected to the filter bag (108) via a plurality of the connection components, and the connection components on each of the elastic support rods (116) are arranged at intervals along the connection rod (156).

10. The dust collector with automatic cleaning function according to any one of claims 1 to 7 or 9, characterized in that: The box (100) is cylindrical in shape, the air inlets (110) are multiple and are distributed in a circular array around the central axis of the box (100), the central axis of the air inlet (110) is arranged horizontally and inclined relative to the surface of the box (100), and the angle between the central axis of the air inlet (110) and the surface of the box (100) is between 30 degrees and 60 degrees; The dust collector with automatic cleaning function further comprises an air intake pipe (166), a partition (168), and a suspension rod (170); the air intake pipe (166) is arranged around the box body (100); one end of the air intake pipe (166) is used to be connected to an air intake source; the other end of the air intake pipe (166) is closed; and each of the air intake ports (110) is respectively connected to the air intake pipe (166); The partition (168) is cylindrical in shape, the partition (168) is arranged parallel to the side wall of the box (100) and is located inside the box (100), the partition (168) is spaced apart from the side wall of the box (100), the lower end of the partition (168) is spaced apart from the bottom surface of the box (100), the upper end of the partition (168) is fixedly connected to the box (100), the bag filter assembly (104) is located inside the partition (168), and the bag filter assembly (104) and the partition (168) are spaced apart from each other; The suspension rod (170) is vertically arranged on the central axis of the box body (100), the upper end of the suspension rod (170) is fixedly connected to the box body (100), the lower end of the suspension rod (170) is provided with a first conical material guide plate (172), the cone tip of the first conical material guide plate (172) is arranged upward and is fixedly connected to the lower end of the suspension rod (170), the lower end of the partition (168) is provided with a second conical material guide plate (174), the cone tip of the second conical material guide plate (174) is arranged downward, the upper end edge of the second conical material guide plate (174) is arranged along the lower end edge of the partition (168) and is fixedly connected to the lower end of the partition (168); A third conical material guide plate (176) is provided at the lower end of the box body (100), the conical tip of the third conical material guide plate (176) is arranged downward, the upper edge of the third conical material guide plate (176) is arranged along the lower edge of the box body (100) and is fixedly connected to the lower end of the box body (100), and the central axis of the first conical material guide plate (172), the central axis of the second conical material guide plate (174), and the central axis of the third conical material guide plate (176) are located on the same vertical axis. On the line, the lower end of the first conical material guide plate (172) is lower than the lower end of the second conical material guide plate (174), the distance between the lower end of the first conical material guide plate (172) and the third conical material guide plate (176) is equal to the distance between the lower end of the second conical material guide plate (174) and the third conical material guide plate (176), the ash discharge port (106) is arranged at the cone tip of the third conical material guide plate (176), and the ash discharge port (106) is installed with a valve (178); The bag filter assembly (104) has multiple bag filter assemblies (104) distributed in a circular array around the suspension rod (170), the distance between adjacent bag filter assemblies (104) is equal to the distance between the bag filter assembly (104) and the partition (168), and the distance between the lower end of the bag filter assembly (104) and the first conical guide plate (172) is equal to the distance between the lower end of the bag filter assembly (104) and the second conical guide plate (174).

Images