Rotational flow pipe mounting structure and air prefilter thereof

Abstract

The utility model discloses a rotational flow pipe mounting structure, belongs to the technical field of filters, and solves the problem that rainwater is easy to leak from a gap between a rotational flow pipe and a hole site in an existing air prefilter. The device comprises an upper supporting plate, a lower supporting plate and a plurality of rotational flow pipes, the upper supporting plate and the lower supporting plate are each internally provided with a plurality of hole sites, the two ends of each rotational flow pipe are clamped in the upper supporting plate and the lower supporting plate in a one-to-one correspondence mode through the hole sites, and the edge of the top of each hole site corresponding to the lower supporting plate is provided with a water retaining ring in a protruding mode. A lower pressing ring is arranged at the lower end of each rotational flow pipe, a lower retaining ring is further arranged on the rotational flow pipe below the lower pressing ring, the lower pressing rings are attached to the top face of the water retaining ring, and the lower retaining ring is attached to the bottom face of the lower supporting plate. The rotational flow pipe installation structure can effectively prevent rainwater from leaking into the dust discharging cavity. The utility model further discloses an air prefilter which can better filter air and clean dust.

Description

Technical Field

[0001] This utility model relates to filters, and more specifically, to a cyclone tube mounting structure and its air pre-filter. Background Technology

[0002] An air pre-filter reduces the amount of dust and impurities entering the intake system, thus keeping the air filter clean and making the engine run more powerfully. Its working principle is to filter dust through centrifugal force, which plays a role in coarse filtration of air.

[0003] Existing air pre-filters, such as the one disclosed in patent application number 202421217884.1, are cyclone tube type air pre-filters, belonging to the field of air pre-filter technology, and solving the problems of high cost and short service life of existing fan-type pre-filters. It includes an air inlet chamber and an exhaust chamber. The air inlet chamber is equipped with multiple cyclone tubes, and the air inlet chamber is connected to the exhaust chamber through these multiple cyclone tubes so that the impurity-containing fluid in the air inlet chamber is separated by the cyclone tubes before entering the exhaust chamber. The multiple cyclone tubes are symmetrically arranged with respect to the X-axis and Y-axis directions. This cyclone tube type air pre-filter can effectively reduce production costs, extend service life, and improve impurity separation efficiency.

[0004] In the existing air pre-filters mentioned above, the cyclone tubes are fastened to the lower support plate, and the sealing is achieved by the pressure ring on the cyclone tube tightly adhering to the top surface of the lower support plate. In actual use, rainwater may enter the top surface of the lower support plate from the air intake grille. Since the top surface of the lower support plate around the holes of each cyclone tube is flat, rainwater can easily leak into the dust discharge chamber from the gap between the pressure ring and the lower support plate, thus causing inconvenience in subsequent dust removal.

[0005] Therefore, there is an urgent need to design a new type of cyclone tube installation structure and its air pre-filter to solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art. One of its objectives is to provide a vortex tube installation structure that can effectively prevent rainwater from leaking into the dust discharge chamber.

[0007] Its second purpose is to provide an air pre-filter that can better filter air and remove dust.

[0008] The technical solution of this utility model is as follows: a cyclone tube installation structure includes an upper support plate, a lower support plate, and multiple cyclone tubes. The upper and lower support plates each have multiple holes. The two ends of the multiple cyclone tubes are connected to the upper and lower support plates one by one through the holes. Each hole on the lower support plate has a water-blocking ring protruding from its top edge. Each cyclone tube has a lower pressure ring at its lower end. A lower buckle ring is also provided on the cyclone tube below the lower pressure ring. The lower pressure ring is attached to the top surface of the water-blocking ring, and the lower buckle ring is attached to the bottom surface of the lower support plate.

[0009] As a further improvement, at least one sealing ring is provided on the swirl tube between the lower pressure ring and the lower buckle ring, and the sealing ring is sealed to the corresponding hole in the lower support plate.

[0010] Furthermore, the swirl tube between the lower pressure ring and the lower buckle ring is provided with a radially concave annular groove.

[0011] Furthermore, the outer diameter of the pressure ring is larger than the outer diameter of the water-blocking ring.

[0012] Furthermore, each of the cyclone tubes is provided with an upper pressure ring at its upper end, and an upper buckle is also provided on the cyclone tube above the upper pressure ring. The upper pressure ring is attached to the bottom surface of the upper support plate, and the upper buckle is attached to the top surface of the upper support plate.

[0013] Furthermore, the bottom of the corresponding hole in the upper support plate, the top inner side of the water-blocking ring, the upper and lower ends of the lower buckle, and the upper and lower ends of the upper buckle are all rounded corner structures.

[0014] Furthermore, each hole on the upper support plate and each hole on the lower support plate has a reinforcing ring protruding from its top edge and bottom edge, respectively, and the lower and upper buckles are attached to the ends of the reinforcing rings.

[0015] Furthermore, the outer diameters of both the lower and upper buckles are smaller than the outer diameter of the reinforcing ring.

[0016] Furthermore, both the upper and lower ends of the cyclone tube are pointed structures.

[0017] The technical solution of this utility model is as follows: an air pre-filter, including the above-mentioned cyclone tube mounting structure.

[0018] Beneficial effects

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] The cyclone tube installation structure of this utility model has a raised water-blocking ring set on the top edge of each hole in the lower support plate. Once water accumulates on the top surface of the lower support plate, the water-blocking ring with a certain height can further prevent water from seeping out of the hole, effectively preventing rainwater from seeping into the dust discharge chamber. This allows the air pre-filter to better filter air and clean dust, further extending the service life of the air pre-filter. Attached Figure Description

[0021] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0023] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0024] Figure 4 This is a three-dimensional structural diagram of the present invention after the outer shell has been removed;

[0025] Figure 5 for Figure 4 Enlarged structural diagram at point C;

[0026] Figure 6 This is an enlarged three-dimensional structural diagram of the upper support plate in this utility model;

[0027] Figure 7 This is an enlarged three-dimensional structural diagram of one side of the top of the lower support plate in this utility model;

[0028] Figure 8 This is an enlarged three-dimensional structural diagram of one side of the bottom of the lower support plate in this utility model.

[0029] Wherein: 1-upper support plate, 2-lower support plate, 3-swirl tube, 4-hole, 5-water baffle ring, 6-lower pressure ring, 7-lower buckle ring, 8-sealing ring, 9-annular groove, 10-upper pressure ring, 11-upper buckle ring, 12-reinforcing ring, 13-positioning seat. Detailed Implementation

[0030] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0031] See Figure 1-8This utility model discloses a cyclone tube installation structure, including an upper support plate 1, a lower support plate 2, and multiple cyclone tubes 3. Both the upper support plate 1 and the lower support plate 2 have multiple holes 4. The two ends of the multiple cyclone tubes 3 are respectively engaged with the upper support plate 1 and the lower support plate 2 through the corresponding holes 4. The upper support plate 1 and the lower support plate 2 are connected by at least two tie rods. A water-blocking ring 5 is protruding from the top edge of each corresponding hole 4 on the lower support plate 2. The water-blocking ring 5 has a certain height and can prevent the lower support plate from being blocked. The top edge of the hole 4 of plate 2 is blocked, which can effectively prevent water from flowing down the top surface of the lower support plate 2 to the hole 4. Each vortex tube 3 is provided with a lower pressure ring 6 at its lower end. The lower pressure ring 6 is a tube ring that protrudes radially along the vortex tube 3. A lower buckle ring 7 is also provided on the vortex tube 3 below the lower pressure ring 6. The lower buckle ring 7 is a convex ring that protrudes radially along the vortex tube 3. The lower pressure ring 6 is attached to the top surface of the water-blocking ring 5, and the lower buckle ring 7 is attached to the bottom surface of the lower support plate 2, so as to snap the vortex tube 3 onto the lower support plate 2.

[0032] The cyclone tube installation structure of this utility model has a raised water-blocking ring 5 set on the top edge of each hole 4 of the lower support plate 2. Once there is water accumulation on the top surface of the lower support plate 2, the water-blocking ring 5 with a certain height can further prevent water from leaking from the hole 4, which can effectively prevent rainwater from leaking into the dust discharge chamber, so that the air pre-filter can better filter the air and clean the dust, and further extend the service life of the air pre-filter.

[0033] Preferably, at least one sealing ring 8 is provided on the swirl tube 3 between the lower pressure ring 6 and the lower retaining ring 7, and the sealing ring 8 is sealed to the corresponding hole 4 of the lower support plate 2. The sealing connection between the swirl tube 3 and the corresponding hole 4 of the lower support plate 2 through the sealing ring 8 can further improve the sealing performance and prevent rainwater leakage.

[0034] Preferably, a radially concave annular groove 9 is provided on the swirl tube 3 between the lower pressure ring 6 and the lower retaining ring 7. The annular groove 9 is located above a sealing ring 8. When rainwater directly leaks or the sealing ring 8 fails and causes rainwater leakage, the annular groove 9 can temporarily buffer the rainwater and reduce the risk of leakage of the lower sealing ring 8. At the same time, when the swirl tube 3 is inserted into the hole 4 corresponding to the lower support plate 2, the lower end of the swirl tube 3 is more easily deformed because the position of the swirl tube 3 corresponding to the annular groove 9 is relatively thin, which makes it easier for the lower retaining ring 7 to pass through the hole 4, greatly improving the convenience of assembly.

[0035] Preferably, the outer diameter of the pressure ring 6 is larger than that of the water-blocking ring 5, so that the pressure ring 6 completely covers the top surface of the water-blocking ring 5, increasing the contact area between the pressure ring 6 and the water-blocking ring 5, improving their sealing performance, and simultaneously improving the installation stability of the vortex tube 3. Furthermore, the outer edge of the pressure ring 6 is also provided with a downwardly bent flange (not shown in the figure), the height of which is less than the height of the water-blocking ring 5, to prevent interference between the flange and the top surface of the lower support plate 2. The flange blocks the contact surface between the pressure ring 6 and the water-blocking ring 5, preventing the filter's air inlet from directly facing the contact surface between the pressure ring 6 and the water-blocking ring 5, thus preventing rainwater leakage.

[0036] Preferably, each cyclone tube 3 is provided with an upper pressure ring 10 at its upper end. The upper pressure ring 10 is a tube ring that protrudes radially along the cyclone tube 3. Above the upper pressure ring 10, the cyclone tube 3 is also provided with an upper retaining ring 11, which is a convex ring that protrudes radially along the cyclone tube 3. The upper pressure ring 10 is attached to the bottom surface of the upper support plate 1, and the upper retaining ring 11 is attached to the top surface of the upper support plate 1, thereby securing the cyclone tube 3 to the upper support plate 1. Both the upper and lower ends of the cyclone tube 3 are secured to the upper support plate 1 and the lower support plate 2 by pressure rings and retaining rings, making assembly and disassembly very convenient.

[0037] Preferably, the bottom of the hole 4 corresponding to the upper support plate 1, the top inner side of the water-blocking ring 5, the upper and lower ends of the lower buckle 7, and the upper and lower ends of the upper buckle 11 are all rounded corner structures, which makes it easy to insert the vortex tube 3 into the hole 4.

[0038] Preferably, a reinforcing ring 12 is provided at the top edge of each hole 4 corresponding to the upper support plate 1 and at the bottom edge of each hole 4 corresponding to the lower support plate 2, with the lower retaining ring 7 and the upper retaining ring 11 attached to the end of the reinforcing ring 12. By adding the reinforcing ring 12, on the one hand, the contact area between the hole 4 and the cyclone tube 3 can be increased, improving the installation stability of the cyclone tube 3; on the other hand, it facilitates the arrangement of reinforcing ribs in the upper support plate 1 and the lower support plate 2.

[0039] Preferably, the outer diameters of the lower retaining ring 7 and the upper retaining ring 11 are both smaller than the outer diameter of the reinforcing ring 12, which reduces the contact area between the lower retaining ring 7, the upper retaining ring 11 and the reinforcing ring 12, making it easier for the cyclone tube 3 to be pulled out from the upper support plate 1 and the lower support plate 2. Furthermore, both the upper and lower ends of the cyclone tube 3 are pointed structures, which facilitates aligning the cyclone tube 3 with the hole 4 and inserting it.

[0040] This utility model also provides an air pre-filter, including the aforementioned cyclone tube mounting structure. The air pre-filter using this cyclone tube mounting structure can better filter air and clean dust, and is easier to disassemble and maintain. Preferably, a plurality of positioning seats 13 are provided on the inner side of the top surface of the lower support plate 2. During the assembly of the air pre-filter, the positioning seats 13 can be used to position the exhaust pipe, allowing the screw holes on the exhaust pipe to quickly align with the screw holes on the lower support plate 2, greatly improving the assembly efficiency of the air pre-filter.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A cyclone tube installation structure, comprising an upper support plate (1), a lower support plate (2), and a plurality of cyclone tubes (3), wherein the upper support plate (1) and the lower support plate (2) are each provided with a plurality of holes (4), and the two ends of the plurality of cyclone tubes (3) are respectively snapped into the upper support plate (1) and the lower support plate (2) through the holes (4), characterized in that, Each hole (4) corresponding to the lower support plate (2) has a raised water-blocking ring (5) on its top edge. Each vortex tube (3) has a lower pressure ring (6) at its lower end. A lower buckle ring (7) is also provided on the vortex tube (3) below the lower pressure ring (6). The lower pressure ring (6) is attached to the top surface of the water-blocking ring (5), and the lower buckle ring (7) is attached to the bottom surface of the lower support plate (2).

2. The cyclone tube installation structure according to claim 1, characterized in that, At least one sealing ring (8) is provided on the swirl tube (3) between the lower pressure ring (6) and the lower buckle ring (7), and the sealing ring (8) is sealed to the corresponding hole (4) of the lower support plate (2).

3. The cyclone tube installation structure according to claim 1, characterized in that, The swirl tube (3) between the lower pressure ring (6) and the lower buckle ring (7) is provided with a radially concave annular groove (9).

4. The cyclone tube installation structure according to claim 1, characterized in that, The outer diameter of the pressure ring (6) is larger than the outer diameter of the water-blocking ring (5).

5. The cyclone tube installation structure according to claim 1, characterized in that, Each of the swirling tubes (3) is provided with an upper pressure ring (10) at its upper end. An upper buckle (11) is also provided on the swirling tube (3) above the upper pressure ring (10). The upper pressure ring (10) is attached to the bottom surface of the upper support plate (1), and the upper buckle (11) is attached to the top surface of the upper support plate (1).

6. The cyclone tube installation structure according to claim 5, characterized in that, The bottom of the hole (4) corresponding to the upper support plate (1), the top inner side of the water-blocking ring (5), the upper and lower ends of the lower buckle (7) and the upper and lower ends of the upper buckle (11) are all rounded corner structures.

7. The cyclone tube installation structure according to claim 5, characterized in that, The top edge of each hole (4) corresponding to the upper support plate (1) and the bottom edge of each hole (4) corresponding to the lower support plate (2) are provided with a reinforcing ring (12), and the lower buckle (7) and the upper buckle (11) are attached to the end of the reinforcing ring (12).

8. A cyclone tube mounting structure according to claim 7, characterized in that, The outer diameters of the lower buckle (7) and the upper buckle (11) are both smaller than the outer diameter of the reinforcing ring (12).

9. The cyclone tube installation structure according to claim 1, characterized in that, Both ends of the cyclone tube (3) are pointed structures.

10. An air pre-filter, characterized in that, The cyclone tube mounting structure includes any one of claims 1-9.

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