A plug-in structure and a ventilation device including the plug-in structure

Abstract

The present invention provides a plug-in structure and a ventilation device including the plug-in structure, including a skirt board and a plug-in component, wherein the skirt board is detachably connected to an inner frame of the ventilation device through the plug-in component, the skirt board, the plug-in component and the inner frame are fixed together in sequence through locking components, the plug-in component is arranged in parallel on both sides of the inner frame, one side of the plug-in component extends to form a first support plate overlapped on the inner frame, the plug-in component is provided with a plug-in groove on one side close to the first support plate, a plug-in portion is provided on the inner side of the skirt board, the plug-in portion and the plug-in groove cooperate to plug the skirt board and the special-shaped plate, and the outer edge of the skirt board and the end face of the first support plate are against each other. The present invention can ensure the rapid disassembly and assembly between the skirt board and the ventilation device through the plug-in installation structure, is relatively firm, and is convenient for disassembly and assembly and maintenance of the skirt board and the ventilation device.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal for transportation vehicles, and in particular to a plug-in structure and a ventilation device comprising the plug-in structure. Background Art

[0002] In today's society, rail transportation vehicles mainly include diesel locomotives, electric locomotives, EMUs, high-speed railways, passenger and freight cars, light rails, subways and other transportation vehicles, while road transportation vehicles mainly include cars. Their normal operation requires the inhalation of a large amount of air to meet the combustion of internal combustion engines, the heat dissipation of electronic and mechanical components, and the cooling of facilities such as air conditioners. With the inhalation of a large amount of air, there are a lot of floating objects such as sand, dust, catkins, plant leaves, paper scraps, plastics, etc. in the air, which are adsorbed on the dust-proof devices of various air intake ducts and gradually blocked; with the reduction of air intake, the internal combustion engine is insufficiently supplied with air, and the heat dissipation effect of electrical equipment and air conditioners is poor, which seriously affects the normal operation of transportation vehicles.

[0003] The ventilation holes of the existing EMU equipment compartment are set on the skirt board, which is at a low position. The ventilation device and the skirt board often adopt an integrated structure, which makes the installation and disassembly of various parts difficult. Even if an assembled disassembly structure is adopted, there is still a possibility that the parts may loosen or even fall due to the high-speed running of the train, causing major safety problems. Therefore, in order to ensure the safe operation of the EMU, it is urgent to improve the installation structure of the skirt board and the ventilation device. Summary of the invention

[0004] In view of this, the problem to be solved by the present invention is to provide a plug-in structure and a ventilation device including the plug-in structure.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a plug-in structure, including a skirt board and a connector, the skirt board is detachably connected to the inner frame of the ventilation device through the connector, the skirt board, the connector and the inner frame are fixed together in sequence by locking members, the connector is arranged in parallel on both sides of the inner frame, one side of the connector extends to form a first support plate overlapped on the inner frame, the connector is provided with a plug-in groove on one side close to the first support plate, and a plug-in part is provided on the inner side of the skirt board, the plug-in part and the plug-in groove cooperate to enable the skirt board and the special-shaped plate to be plugged in, and the outer edge of the skirt board and the end face of the first support plate are abutted.

[0006] In the present invention, preferably, a ventilation device includes a frame assembly, the frame assembly includes an inner frame, a guide plate connector and the plug-in structure as described in claim 1; the side of the connector facing away from the first support plate extends to form a second support plate, and the guide plate connector is plugged with the connector through the second support plate.

[0007] In the present invention, preferably, the ventilation device also includes a filter assembly that is detachably mounted on the frame assembly, the filter assembly includes a pressure frame, an end frame and a dust filter, the pressure frame is a strip structure, and the two ends of the pressure frame are inserted into pressure frame positioning grooves corresponding to the two end frames.

[0008] In the present invention, preferably, a plurality of partitions are provided on the outer side of the end frame, each of the partitions is provided with a limiting hole, a limiting strip is passed through the limiting hole, and the free end of the limiting strip is passed through the connector and the guide plate connector in sequence to fix the end frame and the connector together.

[0009] In the present invention, preferably, an assembly piece is disposed on one side of the end frame close to the inner frame, one side of the assembly piece extends to form an assembly positioning platform, and the assembly positioning platform and the inner frame are overlapped and fixed by a fixing piece.

[0010] In the present invention, preferably, an assembly part is provided at the end of the assembly, an assembly hole matching with the assembly part is opened at the end of the guide plate connector, a lap hole is opened at the assembly part, and the assembly is fixed together by a lap block and the guide plate connector.

[0011] In the present invention, preferably, the overlapping block includes a locking portion and a positioning portion, the size of the positioning portion matches the size of the overlapping hole, the size of the locking portion is larger than the size of the assembly hole, and the end faces of the locking portion and the guide plate connector abut against each other to allow the positioning portion to extend into the overlapping hole.

[0012] In the present invention, preferably, the dust removal filter is a corrugated filter, comprising a corrugated body, the side of the corrugated body is provided with ridges at intervals along the direction from the crest to the trough, and a plurality of air inlet holes are provided between adjacent ridges along the direction from the crest to the trough; dust reflecting surfaces are provided on both side surfaces of the upper part of the ridges.

[0013] In the present invention, preferably, a central guide plate is provided in the middle of the connector, and the central guide plate divides the space enclosed by the inner frame into an air inlet area and an air outlet area. A plurality of air inlet guide plates are plugged into the connector in the air inlet area, and a plurality of air outlet guide plates are plugged into the connector in the air outlet area, which are symmetrically arranged with respect to the axis of the central guide plate and the air inlet guide plates.

[0014] In the present invention, preferably, the surfaces of the frame assembly and the filter assembly are coated with a super nano hydrophobic coating.

[0015] The advantages and positive effects of the present invention are:

[0016] (1) The plug-in portion provided on the inner side of the skirt board is plugged into the plug-in slot provided on the plug-in component close to the first support plate until the outer edge of the skirt board abuts against the end face of the first support plate. At this time, the skirt board and the plug-in component are plugged and assembled. Then, the skirt board, the plug-in component and the inner frame are fixed together in sequence by tightening the locking component. The locking component is configured as a bolt and a locking nut. The bolt passes through the through holes provided on the skirt board, the plug-in component and the inner frame in sequence. The locking nut is tightened by a simple operation, thereby completing the fixed installation between the skirt board and the ventilation device. By providing such a plug-in installation structure, the quick disassembly and assembly between the skirt board and the ventilation device can be ensured. It is relatively firm and convenient for disassembly and assembly and maintenance of the skirt board and the ventilation device.

[0017] (2) Through the mutual cooperation between the assembly part, the deflector connector and the overlap block, the assembly part is fixed together more firmly through the overlap block and the deflector connector. During assembly, the assembly part and the deflector connector are plugged together through the mutual cooperation between the assembly part and the assembly hole. Since the overlap block includes a locking part and a positioning part, the size of the positioning part matches the size of the overlap hole, and the size of the locking part is larger than the size of the assembly hole. The end faces of the locking part and the deflector connector are abutted to allow the positioning part to extend into the overlap hole, thereby completing the limited fixation between the assembly part and the deflector connector, avoiding the possibility of looseness between the two. Then, the limiting of the two is achieved through the plug-in block, avoiding the safety problem caused by the loosening of the assembly part or the deflector connector caused by shaking when the high-speed train is running. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 is a schematic diagram of the disassembled structure of the skirt plate and the ventilation device according to the first embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of the frame assembly structure of the second embodiment of the present invention;

[0021] Figure 3 is a structural schematic diagram of a filter assembly according to a second embodiment of the present invention;

[0022] Figure 4 is a schematic structural diagram of a dust removal filter and an end frame according to a second embodiment of the present invention;

[0023] Figure 5 is a schematic structural diagram of an assembly according to a second embodiment of the present invention;

[0024] Figure 61 is a schematic structural diagram of an air inlet guide plate, a central guide plate, an air outlet guide plate and a guide plate connector according to a second embodiment of the present invention;

[0025] Figure 7 is a schematic structural diagram of an accelerating guide surface according to a second embodiment of the present invention;

[0026] Figure 8 is a schematic structural diagram of an accelerating guide surface according to a third embodiment of the present invention;

[0027] Fig. 9 is a schematic structural diagram of a central guide plate of a fourth embodiment of the present invention;

[0028] Fig.10 is a schematic structural diagram of a central guide plate of a fifth embodiment of the present invention;

[0029] Fig.11 is a schematic structural diagram of a central guide plate of a sixth embodiment of the present invention;

[0030] Fig.12 1 is a schematic structural diagram of the convex flute of the seventh embodiment of the present invention;

[0031] Fig.13 It is a schematic structural diagram of the convex ridges of the eighth embodiment of the present invention.

[0032] In the figure: 1, skirt plate; 11, plug-in part; 2, plug-in part; 21, first support plate; 22, plug-in slot; 23, second support plate; 3, frame assembly; 31, inner frame; 32, guide plate connector; 321, assembly hole; 4, filter assembly; 41, pressure frame; 42, end frame; 421, filter plug-in slot; 422, filter positioning falcon; 423, partition; 424, limit hole; 425, limit strip; 43, dust filter; 431, corrugated body; 432, convex ridge; 433, air inlet; 5, assembly part; 51, assembly part; 511, lap hole; 6, lap block; 61, locking part; 62, positioning part; 7, center guide plate; 8, air inlet guide plate; 81, airfoil guide surface; 82, acceleration guide surface; 9, air outlet guide plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] Embodiment 1:

[0037] like Figures 1 to 13 As shown, the present invention provides a plug-in structure, including a skirt board 1 and a plug-in component 2, the skirt board 1 is detachably connected to the inner frame 31 of the ventilation device through the plug-in component 2, the skirt board 1, the plug-in component 2 and the inner frame 31 are fixed together in sequence through locking components, the plug-in component 2 is arranged in parallel on both sides of the inner frame 31, one side of the plug-in component 2 extends to form a first support plate 21 overlapped on the inner frame 31, the plug-in groove 22 is provided on the side of the plug-in component 2 close to the first support plate 21, the inner side of the skirt board 1 is provided with a plug-in portion 11, the plug-in portion 11 and the plug-in groove 22 cooperate to enable the skirt board 1 to be plugged with the special-shaped plate, and the outer edge of the skirt board 1 and the end face of the first support plate 21 are abutted.

[0038] Embodiment 2:

[0039] A ventilation device includes a frame assembly 3, the frame assembly 3 includes an inner frame 31, a guide plate connector 32 and a plug-in structure as claimed in claim 1; the side of the connector 2 facing away from the first support plate 21 extends to form a second support plate 23, and the guide plate connector 32 is plugged with the connector 2 through the second support plate 23.

[0040] In this embodiment, further, the ventilation device also includes a filter assembly 4 detachably mounted on the frame assembly 3, the filter assembly 4 includes a pressure frame 41, an end frame 42 and a dust filter 43, and the pressure frame 41 is a strip structure.

[0041] In this embodiment, further, a plurality of partitions 423 are provided on the outer side of the end frame 42, each partition 423 is provided with a limiting hole 424, a limiting strip 425 is passed through the limiting hole 424, and the free end of the limiting strip 425 is passed through the connector 2 and the guide plate connector 32 in sequence to fix the end frame 42 and the connector 2 together.

[0042] In this embodiment, further, an assembly part 5 is disposed on one side of the end frame 42 close to the inner frame 31 , and one side of the assembly part 5 extends to form an assembly positioning platform. The assembly positioning platform and the inner frame 31 are overlapped and fixed by a fixing member.

[0043] In this embodiment, further, an assembly part 51 is provided at the end of the assembly 5, an assembly hole 321 matching with the assembly part 51 is opened at the end of the guide plate connector 32, and a lap hole 511 is opened at the assembly part 51, and the assembly 5 is fixed together with the guide plate connector 32 through the lap block 6.

[0044] In this embodiment, further, the overlapping block 6 includes a locking portion 61 and a positioning portion 62, the size of the positioning portion 62 matches the size of the overlapping hole 511, the size of the locking portion 61 is larger than the size of the assembly hole 321, and the end faces of the locking portion 61 and the guide plate connector 32 abut against each other to allow the positioning portion 62 to extend into the overlapping hole 511.

[0045] In this embodiment, the dust filter 43 is a corrugated filter, including a corrugated body 431, on the side of the corrugated body 431, convex ridges 432 are arranged at intervals along the direction from the crest to the trough, and a plurality of air inlet holes 433 are arranged between adjacent convex ridges 432 along the direction from the crest to the trough; dust reflection surfaces are arranged on both sides of the upper part of the convex ridges 432. By setting the dust filter 43 to be in a crest shape, the air inlet cross-sectional area can be increased, and the filtering effect of the dust filter 43 can be improved.

[0046] In this embodiment, further, a central guide plate 7 is provided in the middle of the plug-in component 2, and the central guide plate 7 divides the space surrounded by the inner frame 31 into an air inlet area and an air outlet area. A plurality of air inlet guide plates 8 are plugged into the plug-in component 2 in the air inlet area, and a plurality of air outlet guide plates 9 are plugged into the plug-in component 2 in the air outlet area, which are arranged symmetrically with the air inlet guide plates 8 relative to the central guide plate 7. The structure of the air outlet guide plate 9 is the same as that of the air inlet guide plate 8. Among them, the upper surface of the air inlet guide plate 8 is, from top to bottom, an airfoil-shaped guide surface 81 and an accelerating guide surface 82 with a concave arc structure, which can be specifically seen in FIG. Figure 7; The airfoil guide surface 81 is at a small angle to the external airflow, giving the external airflow a certain head-on resistance, so that its running speed is appropriately accelerated and its pressure is reduced; but considering the influence of the active air suction of the air intake fan, the angle can be appropriately increased; but the principle is that the external airflow and the guide surface will not be separated during air intake, and the external airflow will be introduced into the air intake duct to the maximum extent. The above-mentioned acceleration guide surface 82, the geometric position of the acceleration guide surface 82 and the air intake guide surface of the adjacent blade-type guide body are coordinated to form an air intake channel; by adjusting its angle, shape, and relationship with the acceleration guide surface 82, the purpose of adjusting the proportional relationship between the external airflow velocity and the airflow velocity entering the main ventilation duct is achieved; at the same time, the angle of the intake airflow entering the main ventilation duct is adjusted, so as to distribute the proportional relationship between the airflow in the main ventilation duct direction and the airflow in the intake duct direction.

[0047] In this embodiment, further, the surfaces of the frame assembly 3 and the filter assembly 4 are coated with a super nano hydrophobic coating. This coating greatly reduces the adhesion of the surface of the airflow channel; when the high-speed train is running under heavy snow weather conditions, the snowflakes cannot adhere to the surface in the ventilation duct and are quickly discharged back into the atmosphere. Therefore, in snowy weather, the accumulation of snowflakes in the dust collector and blockage are reduced to ensure the normal operation of the train.

[0048] Embodiment three:

[0049] The difference between this embodiment and the first embodiment is that the acceleration guide surface 82 is configured to be a convex arc structure. For details, see Figure 8 This is because the wind will generate eddies locally when passing through the accelerating guide surface 82 with a concave arc structure, which will block and change the direction of the wind, and is not conducive to the guiding effect of the guide surface on the wind. The accelerating guide surface 82 with a convex arc structure can reduce the influence of the eddies brought by the concave arc structure, improve the guiding effect of the accelerating guide surface 82, and thus promote the flow of wind.

[0050] Embodiment 4:

[0051] The difference between this embodiment and the above embodiment is that the spoiler surface of the central guide plate 7 is an outer arc structure. Fig. 9 The side of the central guide plate 7 facing away from the dust filter 43 is flat. The active air intake effect of the central guide plate 7 with this structure is remarkable, and the air intake volume can be significantly adjusted, so that a relatively ideal airflow is formed in the main ventilation duct, thereby achieving the effect of automatic dust removal. Taking the working speed of 350km / h as an example, the air intake volume of the flat central guide plate 7 is 5884.9m3 / h.

[0052] Embodiment five:

[0053] The difference between this embodiment and the above embodiment is that the spoiler surface of the central guide plate 7 is an outer arc structure. Fig.10The side of the central guide plate 7 away from the dust filter 43 is concave arc-shaped. The air intake of the central guide plate 7 with this structure is different from that of the central guide plate 7 disclosed in the third embodiment. Taking the working condition of 350 km / h as an example, the air intake of the inner arc central guide plate 7 is 4165.0m3 / h, which is less than 5884.9m3 / h of the flat central guide plate 7. 3 / h, the change of the arc can cause different air intake volumes, and then according to the air intake demand of the equipment compartment, the air intake volume is set by adjusting the shape of the central guide plate 7 to meet the actual different air intake volume demands.

[0054] Embodiment six:

[0055] The difference between this embodiment and the above embodiment is that the spoiler surface of the central guide plate 7 is an outer arc structure. Fig.11 The side of the central guide plate 7 away from the dust filter 43 is convex. The air intake of the central guide plate 7 with this structure is different from that of the central guide plate 7 disclosed in Example 3. Taking the working condition of 350 km / h as an example, the air intake of the convex central guide plate 7 is 2843.7 m3 / h, which is much smaller than the 5884.9 m3 / h of the flat central guide plate 7. The change of curvature can cause different air intakes, and then according to the air intake demand of the equipment compartment, the air intake is set by adjusting the shape of the central guide plate 7 to meet the actual different air intake demands.

[0056] Embodiment seven:

[0057] The difference between this embodiment and the above embodiment is that the cross section of the convex rib 432 is an arc-shaped structure. For details, see Fig.12 , because the two sides of the upper part of the convex rib 432 are provided with dust reflection surfaces; when the floating objects are close to the air inlet 433, they hit the small angle slope and are ejected, and quickly avoid the air inlet 433, creating a clean air layer for the air inlet 433, ensuring the cleanness of the air intake. The preferred inclination angle of the reflection surface is 30-60 degrees; in actual high-speed train operation, a gas clean space will be formed between two adjacent convex ribs 432.

[0058] Embodiment eight:

[0059] The difference between this embodiment and the above-mentioned embodiment is that the cross-section of the convex ridge 432 is a fish-fin-shaped structure. For details, see Fig.13 Since the surface of the fin-shaped convex rib 432 is set as a dust reflecting surface and the air inlet 433 is arranged on the dust reflecting surface, the spacing between the fin-shaped convex ribs 432 is smaller, which increases the compactness of the structural arrangement of the convex ribs 432 and overcomes the problem of loose structure of the convex ribs 432 with an arc-shaped cross-section, thereby increasing the gas clean space and making the gas filtration more sufficient.

[0060] Embodiment nine:

[0061] The difference between this embodiment and the above-mentioned embodiment lies in that a plurality of glue holes are provided at both ends of the waveform body 431 along the direction from the crest to the trough. This structure allows adhesive to be poured into the glue holes after the dust filter 43 and the end frame 42 are plugged in. This allows the adhesive to fill the glue holes, thereby improving the sealing and adhesion of the contact surface between the dust filter 43 and the end frame 42, thereby improving the firmness of the installation of the two, and is suitable for actual high-speed operation of trains.

[0062] Embodiment ten:

[0063] The difference between this embodiment and the above-mentioned embodiment lies in that the number of air outlet guide plates 9 plugged into the connector 2 in the air outlet area is not equal to the number of arranged air inlet guide plates 8, thereby changing the structure of the air outlet guide plates 9 and the symmetrical arrangement of the air inlet guide plates 8. Through this asymmetric air inlet design, the principle of air convection circulation is utilized to increase the air pressure in the equipment cabin, realize the convection circulation between the air in the equipment cabin and the atmosphere, and significantly reduce the ambient temperature in the equipment cabin.

[0064] The working principle and working process of the present invention are as follows: during installation, the plug-in portion 11 provided on the inner side of the skirt board 1 is plugged into the plug-in slot 22 provided on the plug-in component 2 near the first support plate 21, until the outer edge of the skirt board 1 and the end face of the first support plate 21 are butted against each other, at which time the skirt board 1 and the plug-in component 2 are plugged and assembled, and then the skirt board 1, the plug-in component 2 and the inner frame 31 are fixed together in sequence by tightening the locking member, the locking member is set as a bolt and a locking nut, the bolt passes through the through hole provided on the skirt board 1, the plug-in component 2 and the inner frame 31 in sequence, and the locking nut is tightened by a simple operation, thereby completing the fixed installation between the skirt board 1 and the ventilation device. By setting up such a plug-in installation structure, the quick disassembly and assembly between the skirt board 1 and the ventilation device can be ensured, which is relatively firm and convenient for the disassembly and assembly and maintenance of the skirt board 1 and the ventilation device. The ventilation device includes a frame assembly 3, which includes an inner frame 31, a guide plate connector 32 and a plug-in structure; the connector 2 is arranged in parallel on both sides of the inner frame 31, one side of the connector 2 extends to form a first support plate 21 overlapped on the inner frame 31, and the side of the connector 2 facing away from the first support plate 21 extends to form a second support plate 23, and the guide plate connector 32 is plugged with the connector 2 through the second support plate 23. The ventilation device also includes a filter assembly 4 that can be detachably installed with the frame assembly 3. The filter assembly 4 includes a pressure frame 41, an end frame 42 and a dust filter 43. The pressure frame 41 is first inserted into the two ends of the dust filter 43 and fixed by fixing parts. The fixing parts can adopt a simple bolt structure, and then the pressure frame 41 is inserted into the plug-in part 2. The inner side surface of the end frame 42 adopts an arc surface. A filter insertion groove 421 that is consistent with the waveform of the dust filter 43 is provided on the arc surface along the width direction of the end frame 42. A filter positioning falcon 422 that is integrated with the end frame 42 is provided in the filter insertion groove 421. The filter positioning falcon 422 is inserted into the dust filter 43. The pressure frame 41 is a strip structure. The outer side of the end frame 42 is provided with a plurality of partitions 423, each of which is provided with a limiting hole 424, and a limiting strip 425 is passed through the limiting hole 424, and the free end of the limiting strip 425 is passed through the plug-in 2 and the guide plate connector 32 in sequence to fix the end frame 42 and the plug-in 2 together. Through this structure, the end frame 42, the guide connecting plate and the plug-in 2 can be firmly fixed together, the installation is relatively stable, and the assembly is completed in a progressive manner. The structure is reasonably designed, the assembly is relatively simple, and it is easy to use. It overcomes the shortcomings of passive adsorption of traditional filters, and utilizes the most convenient energy source generated at the air inlet of the skirt plate 1 when the high-speed train is running - the powerful reverse airflow, to separate the floating objects from the intake airflow by themselves, and the separated floating objects are discharged back to the atmosphere under the airflow of the main ventilation duct; at the same time, under the action of the guide surface of the guide plate, the air pressure at the filter increases, forming a high-pressure area, and realizing active air supply to the equipment compartment.

[0065] An assembly 5 is provided on one side of the end frame 42 close to the inner frame 31. One side of the assembly 5 extends to form an assembly positioning platform. The assembly positioning platform overlaps the inner frame 31 and the two are fixed by a fixing member. The fixing member can adopt a simple bolt structure. An assembly portion 51 is provided at the end of the assembly 5. An assembly hole 321 having a size matching that of the assembly portion 51 is provided at the end of the guide plate connecting member 32. The assembly portion 51 is provided with an overlapping hole 511. The assembly 5 is fixed together with the guide plate connecting member 32 through an overlapping block 6. During assembly, the assembly part 5 and the guide plate connector 32 are plugged in through the mutual cooperation between the assembly part 51 and the assembly hole 321. Since the overlap block 6 includes a locking part 61 and a positioning part 62, the size of the positioning part 62 matches the size of the overlap hole 511, and the size of the locking part 61 is larger than the size of the assembly hole 321. The end faces of the locking part 61 and the guide plate connector 32 abut against each other to allow the positioning part 62 to extend into the overlap hole 511, thereby completing the limited fixation between the assembly part 5 and the guide plate connector 32, avoiding the possibility of looseness between the two, and then limiting the two through the plug-in block, avoiding the safety problems caused by the loosening of the assembly part 5 or the guide plate connector 32 due to shaking when the high-speed train is running.

[0066] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A plug-in structure, characterized in that: The plug-in structure is used for a ventilation device, the ventilation device includes a frame assembly (3), the frame assembly (3) includes an inner frame (31); the plug-in structure includes a plug-in component (2), the plug-in component (2) is arranged in parallel on both sides of the inner frame (31), one side of the plug-in component (2) extends to form a first support plate (21) overlapped on the inner frame (31), a plug-in slot (22) is provided on the side of the plug-in component (2) close to the first support plate (21), the plug-in slot (22) is plugged with a plug-in portion (11), the plug-in portion (11) is provided on the inner edge of the skirt board (1), the outer edge of the skirt board (1) and the end face of the first support plate (21) are aligned. The skirt (1), the connector (2) and the inner frame (31) are fixed together in sequence by locking members, a central guide plate (7) is provided in the middle of the connector (2), and the central guide plate (7) divides the space surrounded by the inner frame (31) into an air inlet area and an air outlet area, a plurality of air inlet guide plates (8) are plugged into the connector (2) in the air inlet area, and a plurality of air outlet guide plates (9) are plugged into the connector (2) in the air outlet area, which are arranged symmetrically with respect to the central guide plate (7) and the air inlet guide plates (8), and the structure of the air outlet guide plates (9) is the same as that of the air inlet guide plates (8).

2. A ventilation device, characterized in that: The invention comprises a frame assembly (3), wherein the frame assembly (3) comprises an inner frame (31), a guide plate connector (32) and a plug-in structure according to claim 1; a side of the connector (2) facing away from the first support plate (21) extends to form a second support plate (23), and the guide plate connector (32) is plugged into the connector (2) through the second support plate (23).

3. A ventilation device according to claim 2, characterized in that: The ventilation device further comprises a filter assembly (4) detachably mounted on the frame assembly (3); the filter assembly (4) comprises a pressing frame (41), an end frame (42) and a dust removal filter (43); the pressing frame (41) is a strip-shaped structure.

4. A ventilation device according to claim 3, characterized in that: A plurality of partitions (423) are provided on the outer side of the end frame (42), and a limiting hole (424) is provided on each of the partitions (423). A limiting strip (425) is passed through the limiting hole (424), and the free end of the limiting strip (425) is passed through the connector (2) and the guide plate connector (32) in sequence to fix the end frame (42) and the connector (2) together.

5. A ventilation device according to claim 4, characterized in that: An assembly part (5) is provided on one side of the end frame (42) close to the inner frame (31) in abutment with the end frame (42). One side of the assembly part (5) extends to form an assembly positioning platform. The assembly positioning platform and the inner frame (31) are overlapped and fixed by a fixing part.

6. A ventilation device according to claim 5, characterized in that: An assembly portion (51) is provided at the end of the assembly piece (5), an assembly hole (321) matching the assembly portion (51) is provided at the end of the guide plate connecting piece (32), and a lap hole (511) is provided in the assembly portion (51), and the assembly piece (5) is fixed together with the guide plate connecting piece (32) via a lap block (6).

7. A ventilation device according to claim 6, characterized in that: The lap block (6) comprises a locking portion (61) and a positioning portion (62); the size of the positioning portion (62) matches the size of the lap hole (511); the size of the locking portion (61) is larger than the size of the assembly hole (321); the end faces of the locking portion (61) and the guide plate connector (32) abut against each other so that the positioning portion (62) extends into the interior of the lap hole (511).

8. A ventilation device according to claim 3, characterized in that: The dust removal filter (43) is a corrugated filter, comprising a corrugated body (431), convex ridges (432) are provided on the side of the corrugated body (431) in a direction from the crest to the trough, and a plurality of air inlet holes (433) are provided between adjacent convex ridges (432) in a direction from the crest to the trough; dust reflecting surfaces are provided on both side surfaces of the upper portion of the convex ridges (432).

9. A ventilation device according to claim 2, characterized in that: The surfaces of the frame assembly (3) and the filter assembly (4) are both coated with a super nano hydrophobic coating.

Images