Noise reduction maintenance door capable of adjusting air inlet amount

Abstract

The utility model provides a noise-reduction maintenance door capable of adjusting air inlet volume, which comprises an outer door frame and a door plate, an air inlet hole is arranged on the door plate, and the noise-reduction maintenance door further comprises a noise-reduction waterproof box which is arranged on the inner side surface of the door plate and corresponds to the air inlet hole. The noise reduction waterproof box comprises a box body, an overturning plate and a rotating shaft, the overturning plate is hinged to the rotating shaft, the two ends of the rotating shaft are fixed to the two sides of the interior of the box body, a plurality of positioning holes are formed in the two sides of the box body, the positioning holes are formed in the same arc line, the overturning plate is rotated to any positioning hole, and a fastener penetrates through the positioning hole to fixedly connect the overturning plate with the box body. The maintenance door provided by the utility model can solve the rainproof problem and the noise reduction problem while effectively adjusting the air inlet amount, is easy to install and operate, is fixed and reliable, and can adapt to a vehicle-mounted environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted generator sets, and particularly relates to a noise reduction maintenance door capable of adjusting the air intake volume. Background Technique

[0002] Generally, the box body of a vehicle-mounted generator set has two installation methods, namely, installed outside and inside the vehicle. Among them, for the box body of a vehicle-mounted generator set installed outside the vehicle, since it is directly exposed to the natural environment, it must have good rainproof performance to ensure that rainwater does not enter the inside of the box body; when the generator set is working, it will generate noise, and the box body also needs to be noise-reduced. The prior art CN202321474957.0 discloses a maintenance door for a vehicle-mounted generator set box body, which includes an outer door frame and a door panel. At the position corresponding to each air intake hole on the inner side of the door panel, there is an upwardly inclined baffle for rain shielding. The baffle can be used to achieve the effects of rain shielding, dust prevention, and air intake. However, the heat dissipation requirement of the generator set will change with the change of the ambient temperature and the power of the generator set. When the ambient temperature is relatively high or the load of the generator set is relatively large, a larger air intake volume is required to meet the heat dissipation requirement. In the prior art, the baffle is fixedly connected to the door panel and the air intake volume cannot be adjusted, which may cause poor heat dissipation of the generator set, thereby causing overheating, reducing the operating efficiency of the generator set, and may also damage its internal components and shorten the service life of the equipment. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a noise reduction maintenance door that can effectively adjust the air intake volume, solve the problems of rain shielding and noise reduction at the same time, and is easy to install, operate, fixedly reliable, and can adapt to the vehicle-mounted environment.

[0004] To solve the above technical problems, the technical solution of the utility model is: a noise reduction maintenance door capable of adjusting the air intake volume, which includes an outer door frame and a door panel. The door panel is provided with air intake holes, and further includes a noise reduction and waterproof box. The noise reduction and waterproof box is arranged at the position corresponding to the air intake holes on the inner side of the door panel; the noise reduction and waterproof box includes a box body, a flip plate and a rotating shaft. The flip plate and the rotating shaft are hinged. The two ends of the rotating shaft are fixed on both sides inside the box body. A plurality of positioning holes are arranged on both sides of the box body, and the positioning holes are arranged on the same arc. Rotate the flip plate to any positioning hole, and pass a fastener through the positioning hole to fixedly connect the flip plate and the box body.

[0005] In one embodiment, the rotating shaft is fixedly connected to the box body through a bolt and nut assembly.

[0006] In one embodiment, a steel plate is further arranged between the rotating shaft and the box body, and the steel plate is fixedly arranged on the inner side of the box body through a riveting part.

[0007] In one embodiment, the box body is provided with ventilation openings corresponding to the air intake holes.

[0008] In one embodiment, a protective net is provided on the inner side of the door panel corresponding to the air inlet holes, and the protective net is fixedly connected to the door panel through a special-shaped part and a fastener.

[0009] In one embodiment, both ends of the special-shaped part are respectively abutted between the door panel and the protective net, and the fastener passes through the protective net and is fixedly connected to the special-shaped part.

[0010] In one embodiment, the outer door frame is fixed to the vehicle-mounted generator set box body through riveting parts, and the door panel is detachably installed inside the outer door frame.

[0011] In one embodiment, an upward fixing pin is provided at the bottom of the outer door frame, a fixing hole matching the fixing pin is provided at the bottom of the door panel, and a door lock is provided at the upper part of the door panel.

[0012] In one embodiment, a reinforcing aluminum plate is installed at the fixing hole at the lower part of the door panel.

[0013] In one embodiment, a sound-absorbing cotton is installed on the outer side of the box body.

[0014] The beneficial effect of the present utility model lies in providing a noise reduction maintenance door with a clever structure and comprehensive functions. Through the adjustment design of the flip plate, the flexible control of the air intake volume is realized, ensuring that the generator set can maintain efficient heat dissipation under different working conditions. At the same time, the noise reduction and waterproof box combined with the sound-absorbing cotton effectively reduce the noise inside the box body and improve the comfort of the overall operating environment. The setting of the protective net effectively prevents dust from entering, and the flip plate also plays a rain-proof role, enhancing the all-weather protection ability of the box body. In addition, the design of the maintenance door is convenient for disassembly and installation, reducing the maintenance cost and improving the work efficiency, and can significantly improve the comprehensive performance and service life of the vehicle-mounted generator set box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the overall structure of the maintenance door described in the present utility model;

[0017] Figure 2 is Figure 1 the left view of;

[0018] Figure 3 It is a schematic diagram of the internal structure of the maintenance door described in the present utility model;

[0019] Figure 4 Schematic diagram of the connection structure of the special-shaped part according to the present utility model;

[0020] Figure 5 Schematic diagram of the appearance of the maintenance door according to the present utility model.

[0021] Reference numerals are: 1, outer door frame; 2, door panel; 21, air inlet hole; 3, noise reduction and waterproof box; 31, box body; 32, flip plate; 33, rotating shaft; 4, steel plate; 5, positioning hole; 6, ventilation opening; 7, sound-absorbing cotton; 8, protective net; 9, special-shaped part; 11, fixing pin; 13, door lock. Specific embodiments

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection: it can be a mechanical connection or an electrical connection: it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0025] As Figure 1 shown, a noise reduction maintenance door with adjustable air intake volume includes an outer door frame 1, a door panel 2, and a noise reduction and waterproof box 3. Among them, multiple groups of strip-shaped, grid-shaped, or louver ventilation hole-shaped air inlet holes 21 are provided on the door panel 2. In this embodiment, the door panel 2 is provided with louver ventilation holes.

[0026] As Figure 2As shown in the figure, the noise reduction and waterproof box 3 includes a box body 31, a flip plate 32 and a rotating shaft 33. The flip plate 32 and the rotating shaft 33 are hinged, so that the flip plate 32 can rotate around the rotating shaft 33, thereby adjusting the angle of the flip plate 32. Both ends of the rotating shaft 33 are fixed on both inner sides of the box body 31. Specifically, the rotating shaft 33 is fixedly connected to the box body 31 through a bolt and nut assembly, and the nut can be a stainless steel hexagonal nut. A steel plate 4 is also provided between the rotating shaft 33 and the box body 31. The steel plate 4 is fixed on the inner side of the box body 31 through a riveting part. In practical applications, the above riveting part can be a closed countersunk head blind rivet.

[0027] A plurality of positioning holes 5 are provided on both sides of the box body 31. The positioning holes 5 are arranged on the same arc. A through hole is opened on the side surface of the flip plate 32. Before using the device, rotate the flip plate 32 to move its through hole to the corresponding positioning hole 5, and pass a fastener through the positioning hole 5 and the through hole to fixedly connect the flip plate 32 and the box body 31. In practical applications, the above fastener can be a cross recessed pan head screw, and the screw head is placed outside the box body 31.

[0028] As Figure 5 shown in the figure, a ventilation opening 6 corresponding to the air inlet hole 21 is provided on the box body 31. Each group of flip plates 32 can correspond to a group of ventilation openings 6. A drainage slope is provided at the bottom of the box body 31, which can guide and collect the rainwater that may enter the interior of the noise reduction and waterproof box 3 through the gap, so that it naturally converges to the lowest point of the slope, ensuring the dryness and safety of the components inside the box. Sound-absorbing cotton 7 is installed on the outer side surface of the box body 31.

[0029] As Figure 3 and Figure 4 shown in the figure, a protective net 8 is provided on the inner side surface of the door panel 2 corresponding to the air inlet hole 21 (a pressing frame is provided on the outer side of the protective net 8 for fixing, which is not shown in the figure). The protective net 8 is fixedly connected to the door panel 2 through a special-shaped part 9 and a fastener. In practical applications, the above special-shaped part 9 is a "C"-shaped special-shaped part 9, and the fastener is a countersunk rivet nut and a stainless steel cross recessed pan head screw. Among them, both ends of the special-shaped part 9 are respectively abutted between the door panel 2 and the protective net 8, and the stainless steel cross recessed pan head screw passes through the protective net 8 and the special-shaped part 9 and is fixedly connected through the countersunk rivet nut.

[0030] The outer door frame 1 is fixed on the vehicle-mounted generator set box body through a riveting part. The door panel 2 is detachably installed inside the outer door frame 1. A B-type sealing strip is also provided on the inner side of the outer door frame 1. A fixing pin 11 facing upward is provided at the bottom of the outer door frame 1. A fixing hole matching the fixing pin 11 is provided at the bottom of the door panel 2. A reinforcing aluminum plate is installed at the fixing hole at the lower part of the door panel 2. A plurality of door locks 13 are provided at the upper part of the door panel 2. In this embodiment, two door locks 13 are provided at the upper part of the door panel 2. The door locks 13 are installed at the upper part of the door panel 2 through a bolt and nut assembly. A spring washer and a flat washer are also provided between the door locks 13 and the door panel 2.

[0031] The utility model provides a noise-reducing maintenance door with adjustable air intake volume. Through the adjustment design of the flip plate 32, the flexible control of the air intake volume is realized, ensuring that the generator set can maintain efficient heat dissipation under different working conditions; the noise-reducing waterproof box 3 and the sound-absorbing cotton 7 effectively reduce the noise in the box and improve the comfort of the overall operating environment; the setting of the protective net 8 effectively prevents dust from entering; in addition, the design of the maintenance door is convenient for disassembly and installation, reduces the maintenance cost, improves the work efficiency, can significantly improve the comprehensive performance and service life of the vehicle-mounted generator set box, realizes rain protection and noise reduction while having effective air intake, and is easy to install, easy to operate, and has reliable fixation, and can adapt to the vehicle-mounted environment.

[0032] The above embodiments are the preferred implementation schemes of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the scope of the patent of the present utility model.

[0033] In order to make it more convenient for those of ordinary skill in the art to understand the improvements of the present utility model over the prior art, some of the drawings and descriptions of the present utility model have been simplified, and for the sake of clarity, some other elements have also been omitted in this application document. Those of ordinary skill in the art should be aware that these omitted elements may also constitute the content of the present utility model.

Claims

1. A noise-reducing maintenance door with adjustable air intake volume, comprising a door outer frame (1) and a door panel (2), wherein the door panel (2) is provided with an air intake hole (21), characterized in that: The invention also comprises a noise reduction and waterproof box (3), wherein the noise reduction and waterproof box (3) is arranged at a position of the inner side surface of the door panel (2) corresponding to the air inlet hole (21); the noise reduction and waterproof box (3) comprises a box body (31), a flip plate (32) and a rotating shaft (33), wherein the flip plate (32) and the rotating shaft (33) are hingedly connected, and the two ends of the rotating shaft (33) are fixed to the inner sides of the box body (31), and a plurality of positioning holes (5) are arranged on the same arc line, and the flip plate (32) is rotated to any positioning hole (5), and the flip plate (32) and the box body (31) are fixedly connected by fasteners passing through the positioning holes (5).

2. The noise reduction maintenance door according to claim 1, characterized in that: The rotating shaft (33) is fixedly connected to the box body (31) via a bolt and nut assembly.

3. The noise reduction maintenance door according to claim 2, characterized in that: A steel plate (4) is also provided between the rotating shaft (33) and the box body (31), and the steel plate (4) is fixed to the inner side of the box body (31) by means of riveting parts.

4. The noise reduction maintenance door according to claim 1, characterized in that: The box body (31) is provided with a ventilation opening (6) corresponding to the air inlet hole (21).

5. The noise reduction maintenance door according to claim 1, characterized in that: A protective net (8) is provided on the inner side surface of the door panel (2) at a position corresponding to the air inlet hole (21); the protective net (8) is fixedly connected to the door panel (2) via a special-shaped piece (9) and a fastener.

6. The noise reduction maintenance door according to claim 5, characterized in that: The two ends of the special-shaped member (9) are respectively abutted between the door panel (2) and the protective net (8), and the fastener passes through the protective net (8) and is fixedly connected to the special-shaped member (9).

7. The noise reduction maintenance door according to claim 1, characterized in that: The door outer frame (1) is fixed to the vehicle-mounted generator set box body by means of riveted parts, and the door panel (2) is detachably mounted in the door outer frame (1).

8. The noise reduction maintenance door according to claim 1, characterized in that: The bottom of the door outer frame (1) is provided with an upwardly pointing fixing pin (11), the bottom of the door panel (2) is provided with a fixing hole matched with the fixing pin (11), and the upper part of the door panel (2) is provided with a door lock (13).

9. The noise reduction maintenance door according to claim 8, characterized in that: A reinforcing aluminum plate is installed at the fixing hole of the lower part of the door panel (2).

10. The noise reduction maintenance door according to claim 1, characterized in that: The outer side surface of the box body (31) is installed with sound-absorbing cotton (7).

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