Air pre-purification device

Abstract

The utility model discloses an air pre-purification device which comprises a confluence assembly, a rotational flow assembly, an ash basin assembly and an air outlet pipe, an air outlet is formed above the rotational flow assembly, the confluence assembly is arranged corresponding to the air outlet, a dust outlet is formed below the rotational flow assembly, the ash basin assembly is arranged corresponding to the dust outlet, and the air outlet pipe is communicated with the confluence assembly. The ash basin assembly comprises a bearing unit and a dust collecting unit, the dust collecting unit is connected with the rotational flow assembly through the bearing unit, the dust collecting unit and the bearing unit are transversely and movably connected, and the dust collecting unit is transversely detached for ash discharging. The dust collection unit capable of being transversely disassembled is arranged, the transverse space of the dust collection unit is fully utilized for disassembly, the problem that the space for longitudinal dust removal or disassembly of the dust collection unit is limited is solved, and in addition, the dust basin assembly is good in sealing performance, convenient and fast to assemble and disassemble and high in stability; and the rotational flow assembly is suitable for rainy and snowy weather.

Description

Technical Field

[0001] The utility model relates to the field of engine air intake filtration, in particular to an air pre-purification device for pre-filtering engine air intake. Background Art

[0002] Engines require air to operate. To reduce or prevent dust and impurities in the air from entering the engine with the airflow, an air filter is typically installed in the engine's intake system to filter the incoming air through a filter element. While filter elements offer excellent filtering performance, frequent replacement is costly and inconvenient. Therefore, existing engine intake systems incorporate a pre-cleaner device before the traditional air filter to pre-filter the air entering the filter element. This pre-cleaner device can pre-filter large amounts of dust and impurities, keeping the air filter clean for extended periods, thus enhancing engine performance. It also extends the life of the filter element, reduces replacement frequency, and lowers engine maintenance costs.

[0003] At present, air pre-purification devices all use the longitudinal space of the device to clean dust or disassemble and assemble the dust collection structure. If the longitudinal space of the device is short or insufficient, especially if there is insufficient space at the bottom of the dust collection structure, dust cannot be discharged or disassembled after installation, which has the disadvantages of low applicability and great difficulty in dust discharge.

[0004] Moreover, common air pre-purification devices are usually cylindrical structures with a disc-shaped dust collecting structure at the bottom. The top of the dust collecting structure is directly connected to the bottom of the cyclone device. Since the sealing between the dust collecting structure and the cyclone device is low, and the air pre-purification device is easily affected by the vibration of the engine, gaps are generated at the connection, which leads to the leakage of collected air impurities, causing secondary pollution of the purified air.

[0005] At the same time, moving the dust collection structure up and down for disassembly is not conducive to the operator's observation of the internal dust collection amount, especially for the air pre-purification device installed at a higher position. During the actual loading and unloading process, it is easy to cause the dust collection unit to overturn, resulting in the scattering of air impurities, which increases the difficulty of loading and unloading for the operator.

[0006] In addition, the existing pre-filter has a small dust collection capacity and needs to be repeatedly discharged in a short period of time, which reduces the economic benefits of the air pre-purification device. Utility Model Content

[0007] The purpose of this utility model is to provide an air pre-purification device that can be disassembled laterally and has good dust collection effect. The specific technical solution is as follows:

[0008] An air pre-purification device includes a confluence component, a swirl component, an ash basin component and an air outlet pipe. An air outlet is formed above the swirl component, and the confluence component is arranged corresponding to the air outlet. A dust outlet is formed below the swirl component, and the ash basin component is arranged corresponding to the dust outlet. The air outlet pipe is connected to the confluence component. The ash basin assembly includes a bearing unit and a dust collecting unit. The dust collecting unit is connected to the swirl component through the bearing unit. The dust collecting unit and the bearing unit are connected in a transverse movable manner so that the dust collecting unit can be disassembled transversely for dust discharge.

[0009] Furthermore, the swirl assembly includes a shell and a swirl tube accommodated in the shell. The upper side of the shell is connected to the confluence assembly, and the lower side of the shell is connected to the bearing unit of the ash basin assembly.

[0010] Furthermore, the lateral movement between the dust collecting unit and the carrying unit is a horizontal movement in the front-to-back direction.

[0011] Furthermore, the air outlet pipe is close to the shell and downwardly penetrates the swirl assembly and the ash basin assembly.

[0012] Furthermore, the swirl pipe of the swirl assembly is arranged around the air outlet pipe, and a groove for accommodating the air outlet pipe is provided on the ash basin assembly.

[0013] Furthermore, the carrying unit is a chamber structure with a side opening, and the dust collecting unit can be accommodated in the carrying unit and enter and exit the carrying unit through the side opening.

[0014] Furthermore, the supporting unit of the ash basin assembly includes a bottom frame, a first frame, a second frame and a third frame extending upward from the side of the bottom frame, and a hollow frame arranged between the first frame and the third frame; the dust collecting unit includes a lower wall corresponding to the bottom frame, a first wall, a second wall and a third wall corresponding to the first frame, the second frame and the third frame respectively, and a door panel arranged between the first wall and the third wall, and the door panel of the dust collecting unit is arranged corresponding to the frame of the supporting unit.

[0015] Furthermore, a first groove is provided on the dust collecting unit, and a second groove is provided on the carrying unit. The first groove can accommodate the second groove, and the second groove can accommodate the air outlet pipe.

[0016] Furthermore, first convex ribs are arranged on the front and rear of the bottom frame of the carrying unit, second convex ribs are arranged on the lower wall of the dust collecting unit, a concave cavity is arranged under the second convex rib, and the first convex rib can be accommodated in the concave cavity of the second convex rib.

[0017] Furthermore, the dust collecting unit also includes a scraper bar, which is arranged on the lower surface of the lower wall of the dust collecting unit to push out impurities remaining on the bottom frame when the dust collecting unit is unloaded.

[0018] Furthermore, the dust collecting unit also includes a guide flange, which is arranged on the lower surface of the lower wall and protrudes downward along the side of the lower wall. The guide flange is close to the edge of the scraper and is opposite to the scraper to form a channel to guide impurities to move along the channel direction and concentrate.

[0019] Furthermore, the swirl assembly also includes a guide plate, which is arranged downward along the shell and extends into the dust collecting unit to guide impurities discharged from the dust outlet into the dust collecting unit.

[0020] Furthermore, the dust collecting unit includes a first wall and a third wall arranged opposite to each other, and two guide pieces are provided. The guide pieces include an upper edge and a lower edge. The upper edge is connected to the shell, and the lower edge is respectively arranged on the inner side of the first wall and the inner side of the third wall.

[0021] Furthermore, an inclined first slope is provided at the bottom of the second frame of the carrying unit, and a second slope is provided at the bottom of the second wall of the dust collecting unit.

[0022] Furthermore, the cyclone component also includes a filtering structure, which is arranged corresponding to the air outlet of the cyclone component.

[0023] Furthermore, the swirl assembly also includes a rainproof structure, which is arranged from the upper part of the shell downward and around the swirl assembly. A plurality of longitudinal ridges are arranged on the outer surface of the rainproof structure.

[0024] Furthermore, it also includes a fixing structure, which is arranged in the connection area of ​​the door panel of the load-bearing unit and the dust collecting unit, so that the door panel of the dust collecting unit is sealedly connected to the frame of the load-bearing unit. The dust collecting unit also includes a handle, which is protruding from the outside of the door panel of the dust collecting unit to facilitate pulling out the dust collecting unit.

[0025] The air pre-purification device of the utility model has the following advantages:

[0026] 1. By setting up a horizontally detachable dust collecting unit, the horizontal space of the dust collecting unit is fully utilized for disassembly, thereby avoiding the problem of limited space for vertical cleaning or disassembly of the dust collecting unit.

[0027] 2. By setting up an ash basin assembly including a carrying unit and a dust collecting unit, the ash basin assembly is sealed, and the air pre-purification device as a whole is kept in a sealed state, effectively keeping the filtered dust, impurities and other particulate matter inside the device to prevent them from being scattered outside the device.

[0028] 3. Improve dust removal efficiency. The horizontal pulling method of loading and unloading the dust collecting unit is easier to operate. During the operation, the dust collecting unit is prevented from overturning, which enhances the stability of the operation.

[0029] 4. The dust collection capacity is large, which avoids repeated dust discharge in a short period of time and improves the economic benefits of the air pre-purification device.

[0030] 5. A rainproof structure is set on the cyclone component to prevent rainwater from entering the air pre-purification device, thereby causing engine failure and extending the service life of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is an exploded view of the air pre-purification device in the utility model.

[0032] Figure 2 This is a schematic diagram of the inner tube of the air pre-purification device in the present invention.

[0033] Figure 3 Schematic diagram of the outer tube of the air pre-purification device in the present invention.

[0034] Figure 4 Schematic diagram of the removal of the dust collecting unit of the air pre-purification device in the present invention.

[0035] Figure 5 Schematic diagram of the carrier unit of the air pre-purification device in the present invention.

[0036] Figure 6 Schematic diagram of the dust collecting unit of the air pre-purification device in the present invention.

[0037] Figure 7 Schematic diagram of the bottom of the dust collecting unit of the air pre-purification device in the present invention.

[0038] Figure 8 Schematic diagram of the loading of the dust collecting unit of the air pre-purification device in the present invention. DETAILED DESCRIPTION

[0039] In order to better understand the purpose, structure and function of the present invention, the air pre-purification device of the present invention is described in detail below with reference to the accompanying drawings.

[0040] like Figures 1 to 4As shown, the air pre-purification device of the present invention includes a cyclone component 100 that can separate dust and impurities in the air. A cyclone tube is arranged in the cyclone component 100, and the cyclone tube consists of an inner tube 110 and an outer tube 120. The inner tube 110 includes an air outlet 111 and a connecting end, and the outer tube 120 includes a dust outlet 121 and a connecting end. The connecting end of the inner tube 110 extends into the connecting end of the outer tube 120, and forms an annular air inlet at the connection; a swirl blade is provided at the air inlet, and air containing dust and impurities enters the cyclone tube from the air inlet and swirls under the action of the swirl blade; the dust and impurities spirally move along the outer tube 120 and are discharged through the dust outlet 121 of the outer tube 120, and the purified air spirally moves along the inner tube 110 and is discharged through the air outlet 111 of the inner tube 110; the air outlet 111 of the inner tube 110 of the cyclone tube can be connected to the engine through the air outlet pipe 400 or other connecting parts to guide the purified air to the engine.

[0041] Specifically, the air pre-purifier typically includes multiple cyclone tubes arranged side by side. The air outlets 111 of the multiple cyclone inner tubes 110 can first collect the purified air together, and then pass it to the engine through a connecting piece such as an outlet pipe 400. For example, a confluence chamber can be provided in the air pre-purifier, so that the air outlet 111 of each cyclone inner tube 110 is connected to the confluence chamber. At the same time, one end of the outlet pipe 400 is connected to the confluence chamber and the other end is connected to the engine. Of course, the dust outlets 121 of the multiple cyclone outer tubes 120 can also collect the separated dust and impurities. For example, an ash basin assembly 300 can be provided in the air pre-purifier, so that the dust outlet 121 of each cyclone outer tube 120 is connected to the ash basin assembly 300, so that the separated dust and impurities are collected and temporarily stored in the ash basin assembly 300. When the impurities in the ash basin assembly 300 reach a certain amount, the ash basin assembly 300 is then discharged and cleaned.

[0042] like Figure 4As shown, the air pre-purification device of the present invention is particularly suitable for environments with high concentrations of air impurities, and is also suitable for equipment or environments with high purification requirements. This is because the ash basin assembly 300 of the air pre-purification device is provided with a detachable carrying unit 310 and a dust collecting unit 330. The carrying unit 310, on the one hand, receives the air impurities scattered on the edge of the dust collecting unit 330, and on the other hand, is tightly connected to the shell 321 and the confluence assembly 200 above it, so that the scattered air impurities are completely sealed in the device to prevent them from overflowing to the outside; at the same time, under the premise of providing the carrying unit 310, the utility model addresses the situation where the longitudinal external space of the air pre-purification device is insufficient and it is impossible to clean the ash downward or remove the ash basin assembly. By providing the dust collecting unit 330 and the carrying unit 310 with a lateral movable connection, a disassembly space for the ash basin assembly is formed in the lateral direction, making cleaning easy to operate, and during horizontal operation, it helps the operator to check the amount of impurities inside the dust collecting unit 330 in time before unloading the dust collecting unit 330, avoiding the dust collecting unit 330 from tipping over during loading and unloading, thereby enhancing the stability and ease of operation.

[0043] The lateral direction mentioned above is preferably a horizontal front-to-back direction, or a horizontal left-to-right direction. Of course, there may be a relative inclination angle with the horizontal plane, as long as no longitudinal space is required when disassembling the dust collecting unit.

[0044] In order to better understand the purpose, structure and function of the present invention, the air pre-purification device of the present invention will be further described in detail below with reference to the accompanying drawings, taking the specific structure of the air pre-purification device as an example.

[0045] like Figures 1 to 4 In the illustrated embodiment, the air pre-purifier comprises a cyclone assembly 100, a confluence assembly 200, an ash basin assembly 300, and an outlet pipe 400. The confluence assembly 200 is located above the cyclone assembly 100 and communicates with the cyclone assembly's air outlet 111. The ash basin assembly 300 is located below the cyclone assembly 100 and communicates with the cyclone assembly's dust outlet 121. The outlet pipe 400 vertically extends through the cyclone assembly 100. Its upper end communicates with the confluence assembly 200, while its lower end passes through the ash basin assembly 300 and communicates with the engine's air intake. Air laden with dust and impurities enters the cyclone assembly 100, generating a swirling motion. Impurity particles spiral downward, passing through the dust outlet 121 and falling into the ash basin assembly 300. Purified air spirals upward, entering the confluence assembly 200 through the air outlet 111, and then flows through the outlet pipe 400 to the engine.

[0046] Furthermore, the cyclone component 100 also includes a filtering structure, which is arranged corresponding to the air outlet 111 of the cyclone component, that is, the filtering structure covers the air outlet 111, and the gas discharged from the air outlet 111 is filtered again before entering the confluence component 200. The filtering structure can use flat filter cotton, filter mesh, etc.

[0047] like Figure 5 and Figure 6 As shown, the ash basin assembly 300 includes a carrier unit 310 and a dust collection unit 330 housed within the carrier unit 310. The ash basin assembly 300 has a square cross-section, which increases its capacity for carrying impurities and facilitates the subsequent installation of a retractable, laterally movable connection structure. The upper portion of the carrier unit 310 is tightly connected to a housing 321 surrounding the outer periphery of the cyclone assembly 100. The upper portion of the housing 321 is tightly connected to the top cover of the confluence assembly 200, creating a sealed structure for the air pre-purifier. Only the air inlet and outlet pipe 400 of the cyclone assembly 100 remain, retaining the filtered foreign matter within the device.

[0048] Specifically, the facing surfaces in the figure and the corresponding surfaces are defined as the front side and the rear side, the surfaces on both sides of the front side are defined as the left side and the right side respectively, and the upper and lower surfaces of the front side are defined as the upper side and the lower side respectively. Then, the lower side of the carrying unit 310 of the ash basin assembly 300 is the bottom frame 314, and three closed surfaces are fixedly set on the bottom frame 314, the left side, the rear side and the right side are respectively the first frame 311, the second frame 312 and the third frame 313, a hollow frame 315 is set on the front side of the carrying unit 310, and the upper side of the carrying unit 310 is open and corresponds to the dust outlet 121; the dust collecting unit 330 includes a lower wall 336 corresponding to the bottom frame 314, which is respectively connected to the first frame 311, the second frame 312 and the third frame 313 3, and a door panel 334 is provided between the first wall 331 and the third wall 333. The door panel 334 of the dust collecting unit 330 is provided corresponding to the frame 315 of the carrying unit 310. The upper side of the dust collecting unit 330 is open and corresponds to the dust outlet 121. The length and width of the first wall 331, the second wall 332, and the third wall 333 of the dust collecting unit 330 are respectively smaller than the length and width of the first frame 311, the second frame 312, and the third frame 313 of the carrying unit 310. Therefore, there is a certain gap between the walls of the dust collecting unit 330 and the frames of the carrying unit 310, thereby reducing the sliding friction between the two.

[0049] Of course, the above-mentioned setting method of placing the dust collecting unit 330 into the carrying unit 310 is only a preferred embodiment. Those skilled in the art can also set the carrying unit 310 on the outside of the swirl component shell, and the carrying unit 310 is connected to the dust collecting unit 330 by using slide rails, nesting and other structures, that is, the dust collecting unit 330 is set outside the carrying unit 310, or the dust collecting unit 330 and the carrying unit 310 are connected by other methods, as long as the effect of lateral movement of the dust collecting unit 330 can be achieved.

[0050] Furthermore, a hollowed-out frame 315 is provided on the side of the carrier unit 310. The dust collection unit 330 is positioned in close contact with the frame 315 of the carrier unit 310, thereby hermetically sealing the ash basin assembly 300. To further enhance the sealing between the two, a sealing structure is provided between the dust collection unit 330 and the carrier unit 310. Specifically, a sealing groove is provided outside the frame, and an annular elastic sealing strip is fixedly installed in the sealing groove. The sealing strip is stably embedded and fixed in the sealing groove to enhance the sealing effect between the dust collection unit 330 and the carrier unit 310 and prevent the leakage of air impurities.

[0051] The purpose of setting up the above structure is to accommodate the dust collecting unit 330 inside the carrying unit 310. At the same time, the dust collecting unit 330 can be moved in the front and rear directions to form a movable connection with the carrying unit 310 in the horizontal direction. On the one hand, it is to make full use of the front and rear horizontal space of the dust collecting unit for disassembly, and solve the problem of insufficient longitudinal space of the air pre-purification device and inability to clean and disassemble. On the other hand, the dust collecting unit 330 collects air impurities from the dust outlet 121 from the upper side, and the overflowing air impurities will enter the gap between the dust collecting unit 330 and the carrying unit 310. The carrying unit 310 further collects the air impurities to prevent them from overflowing to the outside of the device. In addition, the lateral movement makes it easy to check the amount of impurities in the dust collecting unit 330 and to load and unload the dust collecting unit 330 from the carrying unit 310.

[0052] Further, such as Figure 3 As shown, the swirl assembly 100 also includes a guide piece 130, which is arranged downward along the shell. Specifically, two guide pieces 130 are symmetrically arranged on the left and right, and the guide piece 130 includes an upper edge and a lower edge. The upper edge is connected to the shell, and the lower edge is respectively arranged on the inner side of the first wall 331 of the dust collecting unit 330 and the inner side of the third wall 333. That is, the guide piece 130 is inserted downward along the inner side of the first wall and the third wall of the dust collecting unit, so as to guide the impurities discharged from the dust outlet into the dust collecting unit along the guide piece 130, and avoid it from entering the gap between the dust collecting unit 330 and the carrying unit 310, thereby improving the dust collection efficiency.

[0053] Further, such as Figure 2As shown, the swirl assembly also includes a sheet-like rainproof structure 140, which is arranged downward from the upper part of the shell and surrounds the outside of the inner tube of the swirl assembly to prevent rainwater from falling into the air inlet between the inner tube and the outer tube when it rains, thereby causing engine failure. A plurality of longitudinal convex strips can also be provided on the outside of the rainproof structure 140 to form a path to guide rainwater to fall in a concentrated manner to avoid splashing of rainwater.

[0054] Further, such as Figure 5 and Figure 6 As shown, an inclined first slope 360 ​​is provided at the bottom of the second frame 312 of the carrying unit 310, and a second slope 370 with the same inclination angle is provided at the bottom of the second wall of the dust collecting unit. An angle greater than 90 degrees is formed between the second slope 370 and the second wall, and another angle greater than 90 degrees is formed between the second slope 370 and the lower wall, so that air impurities falling into the rear side of the dust collecting unit can be easily removed from the above two angles, thereby improving the cleaning efficiency.

[0055] Preferably, the air outlet pipe 400 is arranged near the rear side of the shell 321, and extends downward to the rear side of the ash basin assembly 300. The outer tube 120 of the swirl tube in the swirl assembly 100 is arranged around the front side and left and right sides of the air outlet pipe 400. Accordingly, a groove that can accommodate the air outlet pipe 400 is provided on the ash basin assembly 300. Specifically, a first groove 335 is provided on the second wall 332 of the dust collecting unit 330, and a second groove 316 is provided on the second frame 312 of the carrying unit 310. The first groove 335 can accommodate the second groove 316, and the second groove 316 can accommodate the air outlet pipe 400.

[0056] The purpose of setting up the above-mentioned structure is that by setting up the air outlet pipe 400 on the rear side, after the supporting unit 310 in the ash basin assembly 300 is clamped on the air outlet pipe 400, the position of the air outlet pipe 400 is conducive to the dust collecting unit 330 being placed into the supporting unit 310 from front to back, and the dust collecting unit 330 is a complete integral structure, so that loading and unloading can be completed efficiently in one go.

[0057] Of course, the air outlet pipe 400 can also be set near the side or the middle, and then two dust collecting units 330 can be set opposite to each other on both sides of the air outlet pipe 400, and the supporting unit 310 is opened on both sides thereof to form an inlet and outlet for loading and unloading the dust collecting unit 330, that is, as long as the effect of the horizontal movable connection between the supporting unit 310 and the dust collecting unit 330 in the ash basin assembly 300 can be achieved.

[0058] Preferably, a first convex rib 317 is arranged on the bottom frame 314 of the carrying unit 310 from front to back, the front end of the first convex rib 317 is connected to the bottom of the frame 315 of the carrying unit 310, and the rear end is connected to the middle of the bottom of the second groove 316, and a second convex rib 337 is arranged on the lower wall 336 of the dust collecting unit 330, the front end of the second convex rib 337 is connected to the middle of the bottom of the door panel 334 of the dust collecting unit 330, and the rear end is connected to the middle of the bottom of the first groove 335. At the same time, a concave cavity is arranged under the second convex rib 337 so that the first convex rib 317 can be accommodated in the concave cavity of the second convex rib 337.

[0059] The purpose of setting up the above-mentioned structure is that, through the nesting cooperation of the concave cavity of the first convex rib 317 and the second convex rib 337, a guide path for the loading and unloading route is established when the dust collecting unit 330 of the ash basin assembly 300 is placed in the carrying unit 310. The guide path helps to adjust the left and right positions of the dust collecting unit 330 so that it can be quickly and accurately aligned with the carrying unit 310, and its moving direction is maintained unchanged during the movement, thereby improving the efficiency and ease of loading and unloading of the dust collecting unit 330.

[0060] Further, such as Figure 7 As shown, the bottom of the dust collecting unit 330 also includes a scraper 338, which is a rib structure arranged on the lower surface of the lower wall 336, close to the rear side of the lower wall 336. One end of the scraper 338 abuts against the first frame 311 and the third frame 313 of the carrying unit 310, and the other end abuts against the side of the first groove 335 of the carrying unit 310. The bottom surface of the scraper 338 abuts against the upper surface of the bottom frame 314 of the carrying unit 310, and the impurities in the air flowing out of the dust outlet 121 are removed. The impurities in the air enter the bottom frame 314 of the carrying unit 310 along the gap between the carrying unit 310 and the dust collecting unit 330. When the dust collecting unit 330 is moved from the rear side to the front side and out of the carrying unit 310, the scraper 338 will push the air impurities in front of it forward, that is, unload them from the carrying unit 310 together, thereby clearing the air impurities remaining on the bottom frame 314 of the carrying unit 310, eliminating the step of manual dust removal, enhancing the efficiency of dust removal, and improving convenience.

[0061] Furthermore, the bottom of the dust collecting unit 330 also includes a guide flange 339, which is a rib structure provided on the lower surface of the lower wall 336 and protruding downward along the side of the lower wall 336. The guide flange 339 includes a first side opposite to the scraper 338 near the rear side, a second side and a third side are provided at both ends of the first side along the side of the lower wall 336 and the edge of the second groove 316, and a fourth side is provided along the second rib 337. The bottom surface of the guide flange 339 abuts against the carrying unit 310, wherein the second side and the fourth side both abut against the door panel 334 of the dust collecting unit 330, thereby An L-shaped channel 320 is formed between the edge, and the first edge and the side wall of the carrying unit 310. The entrance of the channel 320 is located on the left and right sides of the second groove 316. After the air impurities flowing out of the dust outlet 121 enter from the entrance of the channel 320, they move along their planned path and accumulate. When the dust collecting unit 330 is moved from the back side to the front side to escape from the carrying unit 310, the scraper 338 will push the air impurities in the channel 320 forward, that is, unload them from the carrying unit 310 together, thereby completely removing the air impurities remaining on the bottom frame 314 of the carrying unit 310, further enhancing the efficiency of dust removal and improving convenience.

[0062] Further, if Figure 8 As shown, a fixing structure 340 is provided on the carrier unit 310 and the dust collection unit 330 for detachably fixing the dust collection unit 330 to the carrier unit 310, preventing the dust collection unit 330 from falling off the carrier unit 310 when the device is in operation. The fixing structure 340 includes a latching block provided on the bottom frame 314, the first frame 311, and the third frame 313 of the carrier unit 310, and a hook provided on the door panel 334. The hook and the latching block engage with each other to securely connect the door panel 334 of the dust collection unit 330 to the carrier unit 310. Of course, the positions of the hook and the latching block can also be reversed, with the latching block provided on the door panel 334 and the hook provided on the carrier unit 310. Of course, the fixing structure 340 can also adopt other existing detachable structures, such as magnetic attraction, spring clips, or bolt connections. The number of fixing structures 340 provided can also be selected according to actual needs, with at least one set being sufficient to achieve a secure connection.

[0063] Furthermore, the dust collecting unit 330 also includes a handle 350, which is protruding from the outside of the door panel 334 of the dust collecting unit 330 to facilitate pulling out the dust collecting unit 330, thereby improving the efficiency and ease of loading and unloading.

[0064] The terms “above”, “below” and “within” mentioned above include the number itself; the terms “exceed” and “outside” do not include the number itself.

[0065] The present invention has been further described above with the aid of specific embodiments. However, it should be understood that the specific descriptions herein should not be construed as limiting the essence and scope of the present invention. Any modifications made to the above embodiments by a person skilled in the art after reading this specification are within the scope of protection of the present invention. The various specific technical features described in the above specific embodiments may be combined in any suitable manner unless there is any contradiction. To avoid unnecessary repetition, the present invention will not further describe various possible combinations in the embodiments.

[0066] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

Claims

1. An air pre-purification device, characterized in that: It includes a confluence component, a swirl component, an ash basin component and an air outlet pipe. An air outlet is formed above the swirl component, and the confluence component is arranged corresponding to the air outlet. A dust outlet is formed below the swirl component, and the ash basin component is arranged corresponding to the dust outlet. The air outlet pipe is connected to the confluence component. The ash basin assembly includes a bearing unit and a dust collecting unit. The dust collecting unit is connected to the swirl component through the bearing unit. The dust collecting unit and the bearing unit are connected in a transverse movable manner, so that the dust collecting unit can be disassembled transversely for dust discharge.

2. The air pre-purification device according to claim 1, characterized in that: The swirl assembly includes a shell and a swirl tube accommodated in the shell. The upper side of the shell is connected to the confluence assembly, and the lower side of the shell is connected to the bearing unit of the ash basin assembly.

3. The air pre-purification device according to claim 2, characterized in that: The lateral movement between the dust collecting unit and the carrying unit is a horizontal movement in the front-to-back direction.

4. The air pre-purification device according to claim 1, characterized in that: The air outlet pipe is close to the shell and downwardly penetrates the swirl assembly and the ash basin assembly.

5. The air pre-purification device according to claim 4, characterized in that: The swirl pipe of the swirl assembly is arranged around the air outlet pipe, and the ash basin assembly is provided with a groove for accommodating the air outlet pipe.

6. The air pre-purification device according to any one of claims 1 to 5, characterized in that: The carrying unit is a chamber structure with a side opening. The dust collecting unit can be accommodated in the carrying unit and enter and exit the carrying unit through the side opening.

7. The air pre-purification device according to claim 6, characterized in that: The bearing unit of the ash basin assembly includes a bottom frame, a first frame, a second frame and a third frame extending upward from the side of the bottom frame, and a hollow frame arranged between the first frame and the third frame; the dust collecting unit includes a lower wall corresponding to the bottom frame, a first wall, a second wall and a third wall corresponding to the first frame, the second frame and the third frame respectively, and a door panel arranged between the first wall and the third wall, and the door panel of the dust collecting unit is arranged corresponding to the frame of the bearing unit.

8. The air pre-purification device according to claim 7, characterized in that: A first groove is provided on the dust collecting unit, and a second groove is provided on the carrying unit. The first groove can accommodate the second groove, and the second groove can accommodate the air outlet pipe.

9. The air pre-purification device according to claim 7 or 8, characterized in that: First convex ribs are arranged on the front and rear of the bottom frame of the carrying unit, second convex ribs are arranged on the lower wall of the dust collecting unit, a concave cavity is arranged under the second convex rib, and the first convex rib can be accommodated in the concave cavity of the second convex rib.

10. The air pre-purification device according to any one of claims 1 to 5, characterized in that: The dust collecting unit further comprises a scraping bar which is arranged on the lower surface of the lower wall of the dust collecting unit so as to push out the impurities remaining on the bottom frame when the dust collecting unit is unloaded.

11. The air pre-purification device according to claim 10, characterized in that: The dust collecting unit also includes a guide flange, which is arranged on the lower surface of the lower wall and protrudes downward along the side of the lower wall. The guide flange is close to the edge of the scraper and is opposite to the scraper to form a channel to guide impurities to move along the channel direction and concentrate.

12. The air pre-purification device according to claim 2, characterized in that: The cyclone assembly also includes a guide piece, which is arranged downward along the shell and extends into the dust collecting unit to guide impurities discharged from the dust outlet into the dust collecting unit.

13. The air pre-purification device according to claim 12, characterized in that: The dust collecting unit includes a first wall and a third wall arranged opposite to each other, and two guide pieces are provided. The guide pieces include an upper edge and a lower edge. The upper edge is connected to the shell, and the lower edge is respectively arranged on the inner side of the first wall and the inner side of the third wall.

14. The air pre-purification device according to claim 7, characterized in that: An inclined first slope is provided at the bottom of the second frame of the carrying unit, and a second slope is provided at the bottom of the second wall of the dust collecting unit.

15. The air pre-purification device according to any one of claims 1 to 5, characterized in that: The cyclone component further includes a filtering structure, which is arranged corresponding to the air outlet of the cyclone component.

16. The air pre-purification device according to any one of claims 2 to 5, characterized in that: The swirl assembly also includes a rainproof structure, which is arranged from the upper part of the shell downward and around the swirl assembly. A plurality of longitudinal convex strips are arranged on the outer surface of the rainproof structure.

17. The air pre-purification device according to any one of claims 1 to 5, characterized in that: It also includes a fixing structure, which is arranged in the connection area of ​​the door panel of the load-bearing unit and the dust collecting unit to seal the door panel of the dust collecting unit to the frame of the load-bearing unit. The dust collecting unit also includes a handle, which is protruding from the outside of the door panel of the dust collecting unit to facilitate pulling out the dust collecting unit.

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