Air return grille device of urban rail vehicle air conditioner

Abstract

The air return grille device comprises an air guide box and an installation frame, the air guide box is arranged on an air duct of the urban rail vehicle air conditioner, the front end of the air guide box comprises an L-shaped limiting block and an air guide opening formed in the inner side of the L-shaped limiting block, and a plurality of motor shafts are transversely arranged on the inner side of the air guide opening. Permanent magnet blocks are arranged at four corners of the inner side of the L-shaped limiting block, positioning grooves are formed among the permanent magnet blocks, a bolt groove is formed in the middle of the inner side of each positioning groove, a first positioning block is transversely fixed in each positioning groove through the corresponding bolt groove, and a second positioning block is longitudinally fixed in each positioning groove through the corresponding bolt groove; the first positioning block and the second positioning block are both arranged on the rear side of the mounting frame, a mounting plate is further arranged on the rear side of the mounting frame, and the mounting plate comprises an air return grille arranged on the inner side and a limiting plate arranged on the rear side; the air return grille has the advantages that the air return grille is convenient to install, the disassembly and replacement efficiency is improved, and the disassembly safety of the air return grille is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of urban rail vehicle air conditioners, in particular to a return air grille device of an urban rail vehicle air conditioner. Background Art

[0002] Rail transit is the main line of public transportation and the main artery for passenger transportation. It is recognized worldwide as a "green transportation" with low energy consumption and little pollution. After its completion and operation, it will be directly related to the travel, work, shopping and life of urban residents. Urban rail vehicles have good operating characteristics. The vehicles are equipped with air-conditioning systems and other equipment that directly serve customers, providing passengers with a good riding experience. During the operation of the air conditioner, the return air is sucked into the air-conditioning unit from the ceiling of the passenger compartment through the return air duct and the bottom of the air-conditioning unit. The design and maintenance of the return air grille device are particularly important. The return air grille device includes a return air grille and a return air filter. The quality treatment of the return air by the return air grille device is particularly important to the service life of the air conditioner and the return air effect of the air conditioner.

[0003] At present, the installation and disassembly of the existing return air grilles of urban rail vehicle air conditioners are relatively troublesome, and it is not convenient to disassemble and clean them; however, most of the existing return air grilles are fixed structures, and it is necessary to first open the external cover of the urban rail vehicle air conditioner, then remove the return air grille, and then clean the return air grille and then install it back, which is time-consuming and laborious.

[0004] Therefore, in view of the above problems, we propose a return air grille device for the urban rail vehicle air conditioner to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a return air grille device for an urban rail vehicle air conditioner which is easy to install, improves the efficiency of disassembly and replacement, and further improves the safety of disassembly of the return air grille.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a return air grille device for an air conditioner of a rail vehicle, comprising an air guide box and a mounting frame, wherein the air guide box is arranged on the air duct of the air conditioner of the rail vehicle, the front end of the air guide box comprises an L-shaped limit block and an air guide port arranged on the inner side of the L-shaped limit block, a plurality of motor shafts are arranged laterally on the inner side of the air guide port, an electric blind is arranged on the motor shaft, permanent magnet blocks are arranged at the four corners on the inner side of the L-shaped limit block, positioning grooves are arranged between the permanent magnet blocks, and the inner side of the positioning grooves A bolt groove is arranged in the middle, and a first positioning block is fixed laterally and a second positioning block is fixed longitudinally inside the positioning groove through the bolt groove. The first positioning block and the second positioning block are both arranged on the rear side of the mounting frame. A mounting plate is also arranged on the rear side of the mounting frame. The mounting plate includes a return air grille arranged on the inner side and a limit plate arranged on the rear side. L-shaped limit grooves are arranged at the four corners of the limit plate, and the L-shaped limit grooves correspond to the permanent magnet blocks on the air guide box, and the limit plate corresponds to the L-shaped limit blocks on the air guide box.

[0007] Preferably, the first positioning block is symmetrically arranged on the positioning groove, a permanent magnet is arranged in the middle of the top of the first positioning block, and the first positioning block is magnetically clamped in the limiting plate in a straight line, and the second positioning block is symmetrically arranged on the positioning groove, a permanent magnet is arranged in the middle of the top of the second positioning block, and the second positioning block is magnetically clamped in the positioning groove in a cross shape.

[0008] Preferably, a first bolt installation groove symmetrical to the second positioning block is transversely arranged at the front end of the installation frame, and a second bolt installation groove symmetrical to the first positioning block is longitudinally arranged at the front end of the installation frame.

[0009] Preferably, bolt holes corresponding to the bolt slots are arranged between the first positioning block and the second positioning block and the first bolt installation slot and the second bolt installation slot.

[0010] Preferably, the mounting frame is fixedly connected to the air guide box via bolt holes and mounting bolts in bolt grooves.

[0011] Preferably, the bolt hole and the second bolt mounting groove are both sealed with a sealing plate, and the sealing plate includes a rotating groove arranged on the upper and lower sides and a telescopic limit groove arranged on the left and right sides of the sealing plate, and a rotating part is arranged inside the rotating groove, and a knob arranged on the sealing plate is fixed on the rotating part.

[0012] Preferably, spring pins are symmetrically arranged on the left and right sides of the rotating member, and tension springs are arranged on the spring pins on both sides. A telescopic limiting column is arranged at the other end of the tension spring, and the telescopic limiting column is arranged in the telescopic limiting groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model has an L-shaped limit block provided at the front end of the air guide box and is clamped with a limit plate provided on the mounting frame, and is magnetically clamped in the positioning groove through the first positioning block and the second positioning block, and bolts are installed on the bolt grooves and the bolt holes, so as to improve the stability of the fixing of the air guide box and the mounting frame, and the air guide box is installed on the air duct of the urban rail vehicle air conditioner to transport fresh air into the urban rail vehicle, which is beneficial to avoid the trouble of first opening the external cover of the urban rail vehicle air conditioner, then removing the return air grille, and then cleaning the return air grille and then installing it back. It is only necessary to disassemble the mounting frame on the air guide box, thereby improving the efficiency of the maintenance of the return air grille device, and the air guide box is installed on the air duct of the urban rail vehicle air conditioning, thereby further improving the safety of the disassembly and installation of the urban rail vehicle air conditioning return air grille, and the first bolt mounting groove and the second bolt mounting groove are provided on the mounting frame, so that the first bolt mounting groove and the second bolt mounting groove are convenient for installing the corresponding sealing plate, so that the bolts installed on the air guide box and the mounting frame are hidden, so that it can be better integrated with the interior of the urban rail vehicle, and the bolts can be limited at the same time, so as to further improve the stability of the mounting frame installed on the air guide box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the return air grille device of the urban rail vehicle air conditioner of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the installation structure of the return air grille at the front end of the central air guide box;

[0016] Figure 3 for Figure 1 Schematic diagram of the overall structure of the center return air grille installation frame;

[0017] Figure 4 for Figure 3 The schematic diagram of the structure of the installation frame in the front view;

[0018] Figure 5 for Figure 3 Schematic diagram of the rear view structure of the installation frame;

[0019] Figure 6 for Figure 3 Schematic diagram of the structure of the middle sealing plate;

[0020] Figure 7 for Figure 6 Schematic diagram of the internal extension structure of the middle sealing plate;

[0021] Figure 8 for Figure 6 Schematic diagram of the internal shrinkage structure of the middle sealing plate.

[0022] Explanations in the figure: 1. Air guide box; 2. Mounting frame; 3. Return air grille; 4. Sealing plate; 5. L-shaped limit block; 6. Permanent magnet block; 7. Positioning slot; 8. Bolt slot; 9. Air guide port; 10. Electric blinds; 11. Motor shaft; 12. Knob; 13. First positioning block; 14. Second positioning block; 15. First bolt mounting slot; 16. Bolt hole; 17. Second bolt mounting slot; 18. Mounting plate; 19. Limit plate; 20. L-shaped limit slot; 21. Telescopic limit column; 22. Rotating member slot; 23. Rotating member; 24. Telescopic limit slot; 25. Spring pin; 26. Tension spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example

[0024] like Figure 1-5 As shown, the present embodiment discloses a return air grille device for an urban rail vehicle air conditioner, which comprises an air guide box 1 and a mounting frame 2. The front end of the air guide box 1 comprises an L-shaped limit block 5 and an air guide port 9 arranged inside the L-shaped limit block 5. A plurality of motor shafts 11 are arranged transversely inside the air guide port 9. An electric blind 10 is arranged on the motor shaft 11. Permanent magnet blocks 6 are arranged at the four corners inside the L-shaped limit block 5. Positioning grooves 7 are arranged between the permanent magnet blocks 6. A bolt groove 8 is arranged in the middle of the inner side of the positioning groove 7. A first positioning block 13 is transversely fixed to the inside of the positioning groove 7 through the bolt groove 8, and a second positioning block 14 is longitudinally fixed. The first positioning block 13 and the second positioning block 14 are both arranged at the rear side of the mounting frame 2. The rear side of the mounting frame 2 is also provided with a A mounting plate 18 is provided, the mounting plate 18 includes a return air grille 3 arranged on the inner side and a limiting plate 19 arranged on the rear side, L-shaped limiting grooves 20 are arranged at the four corners of the limiting plate 19, the L-shaped limiting grooves 20 correspond to the permanent magnet blocks 6 on the air guide box 1, and the limiting plate 19 corresponds to the L-shaped limiting block 5 on the air guide box 1, the first positioning block 13 is symmetrically arranged on the positioning groove 7, a permanent magnet is arranged in the middle of the top of the first positioning block 13, and the first positioning block 13 is magnetically clamped in the limiting plate 19 in a straight line, the second positioning block 14 is symmetrically arranged on the positioning groove 7, a permanent magnet is arranged in the middle of the top of the second positioning block 14, and the second positioning block 14 is magnetically clamped in the positioning groove 7 in a cross shape;

[0025] Among them, the air guide box 1 is arranged on the air duct of the urban rail vehicle air conditioning, and a first bolt mounting groove 15 symmetrical to the second positioning block 14 is horizontally arranged at the front end of the mounting frame 2, and a second bolt mounting groove 17 symmetrical to the first positioning block 13 is longitudinally arranged at the front end of the mounting frame 2. Bolt holes 16 corresponding to the bolt groove 8 are arranged between the first positioning block 13 and the second positioning block 14 and the first bolt mounting groove 15 and the second bolt mounting groove 17. The air guide box 1 is fixed by clamping with the limiting plate 19 provided on the mounting frame 2 through the L-shaped limiting block 5 provided at the front end, and the mounting frame 2 is fixedly connected to the air guide box 1 through the bolt hole 16 and the mounting bolts in the bolt groove 8.

[0026] In this embodiment, the L-shaped limit block 5 is provided at the front end of the air guide box 1, so that the permanent magnet block 6 provided inside the L-shaped limit block 5 is embedded in the L-shaped limit groove 20 provided on the limit plate 19 on the rear side of the installation frame 2, and the first positioning block 13 and the second positioning block 14 provided on the limit plate 19 on the rear side of the installation frame 2 are embedded in the positioning groove 7 provided on the L-shaped limit block 5, and the bolt hole 16 provided on the installation frame 2 is connected with the bolt groove 8 provided on the air guide box 1 by bolts, so that the air guide box 1 and the installation frame 2 are bolted. They are fixed together by clamping, and at the same time, the first positioning block 13 is clamped in a straight line in the limit plate 19, and the second positioning block 14 is clamped in a cross shape in the limit plate 19, so that it can further improve the stability of the clamping between the air guide box 1 and the mounting frame 2. At the same time, through the air guide port 9 provided in the middle of the air guide box 1, the electric blinds 10 are fixedly installed through the motor shaft 11 provided inside the air guide port 9, so that the motor shaft 11 drives the electric blinds 10 to adjust the air volume of the air outlet by controlling the motor to drive the motor shaft 11 inside the air guide port 9. Example

[0027] like Figure 1-8As shown, the present embodiment discloses a return air grille device for an urban rail vehicle air conditioner, which comprises an air guide box 1 and a mounting frame 2. The air guide box 1 is arranged on the air duct of the urban rail vehicle air conditioner. The front end of the air guide box 1 comprises an L-shaped limit block 5 and an air guide port 9 arranged inside the L-shaped limit block 5. A plurality of motor shafts 11 are arranged laterally inside the air guide port 9. An electric blind 10 is arranged on the motor shaft 11. Permanent magnet blocks 6 are arranged at the four corners inside the L-shaped limit block 5. Positioning grooves 7 are arranged between the permanent magnet blocks 6. The positioning grooves 7 are arranged between the permanent magnet blocks 6. A bolt groove 8 is provided in the middle of the inner side of the positioning groove 7, a first positioning block 13 is transversely fixed to the inside of the positioning groove 7 through the bolt groove 8, and a second positioning block 14 is longitudinally fixed to the inside of the positioning groove 7, the first positioning block 13 and the second positioning block 14 are both provided at the rear side of the mounting frame 2, and a mounting plate 18 is also provided at the rear side of the mounting frame 2, the mounting plate 18 includes a return air grille 3 provided at the inner side and a limiting plate 19 provided at the rear side, and L-shaped limiting grooves 20 are provided at the four corners of the limiting plate 19, and the L-shaped limiting grooves 20 are connected to the air guide box 1 corresponds to the permanent magnet block 6 on the air guide box 1, the limiting plate 19 corresponds to the L-shaped limiting block 5 on the air guide box 1, the first positioning block 13 is symmetrically arranged on the positioning groove 7, a permanent magnet is arranged in the middle of the top of the first positioning block 13, and the first positioning block 13 is magnetically clamped in the limiting plate 19, the second positioning block 14 is symmetrically arranged on the positioning groove 7, a permanent magnet is arranged in the middle of the top of the second positioning block 14, and the second positioning block 14 is magnetically clamped in the positioning groove 7 in a cross shape, a first bolt mounting groove 15 symmetrical to the second positioning block 14 is horizontally arranged at the front end of the mounting frame 2, and a second bolt mounting groove 17 symmetrical to the first positioning block 13 is longitudinally arranged at the front end of the mounting frame 2, and a bolt hole 16 corresponding to the bolt groove 8 is arranged in the middle of the first positioning block 13 and the second positioning block 14 and the first bolt mounting groove 15 and the second bolt mounting groove 17, and the mounting frame 2 is fixedly connected to the air guide box 1 through the bolt hole 16 and the mounting bolt in the bolt groove 8;

[0028] Among them, the bolt hole 16 and the second bolt installation groove 17 are both sealed with a sealing plate 4, and the sealing plate 4 includes a rotating groove 22 arranged on the upper and lower sides and a telescopic limit groove 24 arranged on the left and right sides of the sealing plate 4. A rotating part 23 is arranged inside the rotating groove 22, and a knob 12 arranged on the sealing plate 4 is fixed on the rotating part 23. Spring pins 25 are symmetrically arranged on the left and right sides of the rotating part 23, and tension springs 26 are arranged on the spring pins 25 on both sides. A telescopic limit column 21 is arranged at the other end of the tension spring 26, and the telescopic limit column 21 is arranged in the telescopic limit groove 24.

[0029] In this embodiment, the first bolt installation groove 15 is provided at the front end of the installation frame 2, so that the first bolt installation groove 15 is embedded in the fixed sealing plate 4, and the sealing plate 4 is rotated by the knob 12 provided on the sealing plate 4, thereby driving the rotating member 23 inside the sealing plate 4, and the rotating member 23 drives the tension springs 26 fixed to the spring pins 25 on both sides, so that the telescopic limit column 21 can be extended and retracted inside the telescopic limit groove 24 provided on the sealing plate 4, so that the sealing plate 4 is fixed in the first bolt installation groove 15 to hide the bolts installed in the bolt holes 16, so that it can be better integrated with the interior of the urban rail vehicle, and at the same time, the bolts can be limited, so as to further improve the stability of the installation frame 2 on the air guide box 1; this device has the advantages of convenient installation, disassembly and replacement efficiency, and further improving the safety of disassembly of the return air grille.

[0030] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A return air grille device for an urban rail vehicle air conditioner, comprising an air guide box (1) and a mounting frame (2), characterized in that: The air guide box (1) is arranged on an air duct of an urban rail vehicle air conditioner. The front end of the air guide box (1) comprises an L-shaped limit block (5) and an air guide port (9) arranged inside the L-shaped limit block (5). A plurality of motor shafts (11) are arranged transversely inside the air guide port (9). An electric blind (10) is arranged on the motor shaft (11). Permanent magnet blocks (6) are arranged at four corners inside the L-shaped limit block (5). Positioning grooves (7) are arranged between the permanent magnet blocks (6). A bolt groove (8) is arranged in the middle of the inner side of the positioning groove (7). A first positioning block (13) is transversely fixed inside the positioning groove (7) through the bolt groove (8), and a second positioning block (14) is longitudinally fixed thereto. The first positioning block (13) and the second positioning block (14) are both arranged on the rear side of the mounting frame (2). A mounting plate (18) is also provided on the rear side of the mounting frame (2), the mounting plate (18) comprising a return air grille (3) provided on the inner side and a limit plate (19) provided on the rear side, the limit plate (19) having four corners each provided with an L-shaped limit groove (20), the L-shaped limit groove (20) corresponding to the permanent magnet block (6) on the air guide box (1), and the limit plate (19) corresponding to the L-shaped limit block (5) on the air guide box (1).

2. The return air grille device of the urban rail vehicle air conditioner according to claim 1, characterized in that: The first positioning block (13) is vertically symmetrically arranged on the positioning groove (7), and the second positioning block (14) is bilaterally symmetrically arranged on the positioning groove (7).

3. The return air grille device of the urban rail vehicle air conditioner according to claim 2, characterized in that: The front end of the mounting frame (2) is laterally provided with a first bolt mounting groove (15) symmetrical to the second positioning block (14), and the front end of the mounting frame (2) is longitudinally provided with a second bolt mounting groove (17) symmetrical to the first positioning block (13).

4. The return air grille device of the urban rail vehicle air conditioner according to claim 1, characterized in that: Bolt holes (16) corresponding to the bolt slots (8) are provided between the first positioning block (13) and the second positioning block (14) and the first bolt installation slot (15) and the second bolt installation slot (17).

5. The return air grille device of the urban rail vehicle air conditioner according to claim 4, characterized in that: The mounting frame (2) is fixedly connected to the air guide box (1) via bolt holes (16) and mounting bolts in bolt slots (8).

6. The return air grille device of the urban rail vehicle air conditioner according to claim 4, characterized in that: The bolt hole (16) and the second bolt installation groove (17) are both provided with a sealing plate (4), the sealing plate (4) comprising a rotating member groove (22) provided on the upper and lower sides and a telescopic limit groove (24) provided on the left and right sides of the sealing plate (4), a rotating member (23) is provided inside the rotating member groove (22), and a knob (12) provided on the sealing plate (4) is fixed on the rotating member (23).

7. The return air grille device of the urban rail vehicle air conditioner according to claim 6, characterized in that: The rotating member (23) is symmetrically provided with spring pins (25) on both sides thereof, and each of the spring pins (25) is provided with a tension spring (26). A telescopic limit column (21) is provided at the other end of the tension spring (26), and the telescopic limit column (21) is provided in the telescopic limit groove (24).

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