Double-layer mute box
By designing a double-layered soundproof enclosure and using a synchronous motor to drive the screw, the automated installation of the diesel generator set is achieved, solving the problem of low installation efficiency in existing technologies and realizing both quiet operation and ease of installation.
Patent Information
- Application Number
- CN202422824511.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-19
AI Technical Summary
When existing diesel generator sets are installed in a single-layer enclosure, the air duct layout is unreasonable, resulting in low installation efficiency and the inability to use a crane for direct lifting. It is necessary to rely on manual handling, which consumes manpower and resources.
A double-layered soundproof enclosure is designed. The lower enclosure contains a movable mounting plate. A synchronous motor drives a screw, and a crane is used to hoist the diesel generator set onto the mounting plate and fix it with locking bolts to achieve automated installation. The upper enclosure is equipped with a silencer and ventilation channels. A labyrinth-type silencer is used to improve the quietness effect.
It enables convenient installation of diesel generator sets, improves installation efficiency, provides excellent noise reduction and increases working space, facilitates maintenance, and reduces noise emissions.
Smart Images

Figure CN223497997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of generator set soundproof enclosure technology, and in particular to a double-layer soundproof enclosure. Background Technology
[0002] Electricity plays a crucial role in industrial and agricultural production and daily life, and the dependence on it is increasing; power outages can lead to incalculable losses. With growing environmental awareness and increasing energy scarcity, the demands on diesel generators are constantly rising. Not only are good power and economy required, but also lower emissions and noise levels. To reduce noise, diesel generator sets are typically installed in single-layer enclosures. However, this often results in poor airflow design because components like the muffler, intake muffler, and exhaust muffler are housed within the same enclosure. Currently, double-layer soundproof enclosures have emerged. Since the generator set is installed on the lower layer, it cannot be directly hoisted into the enclosure using a crane; it must be moved manually. Given the generator set's large size, this process requires significant manpower and resources, causing considerable inconvenience and low installation efficiency. Utility Model Content
[0003] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art by providing a double-layer soundproof enclosure that not only has a good noise reduction effect but also facilitates the installation of the engine assembly, effectively improving installation efficiency. It is convenient to use and highly practical.
[0004] The technical solution adopted by this utility model is as follows: a double-layer silent enclosure, including a lower enclosure, an equipment chamber in the middle of the lower enclosure, a base plate on the equipment chamber, a mounting plate for mounting a diesel generator set slidingly on the base plate, track boxes on both sides of the equipment chamber, sliders slidingly inside the track boxes, a drive assembly for driving the sliders to move on the track boxes, the sliders on both sides being connected to the rear ends of the mounting plate via connecting columns, an upper enclosure on the top of the lower enclosure, the upper enclosure communicating with the lower enclosure, a primary silencer in the middle of the upper enclosure communicating with the exhaust port of the generator set, an air inlet silencer on one side of the upper enclosure, and an exhaust silencer on the other side of the upper enclosure, both the air inlet silencer and the exhaust silencer being equipped with labyrinth-type silencers, and a positioning component for fixing the position on the mounting plate.
[0005] As a further improvement, the drive assembly includes a synchronous motor and a screw, the screw being threadedly connected to the slider, the two ends of the screw being rotatably mounted at both ends of the track box, the synchronous motor being mounted at one end of the track box, and the output end of the synchronous motor being connected to the screw.
[0006] Furthermore, both the air intake silencing chamber and the air exhaust silencing chamber are equipped with motorized louvers.
[0007] Furthermore, the top of the upper housing is provided with a smoke exhaust pipe, which is connected to a primary silencer.
[0008] Furthermore, the primary silencer is connected to the diesel generator set via a smoke outlet pipe, and the smoke outlet pipe is equipped with a corrugated silencer.
[0009] Furthermore, the mounting plate has multiple track wheels at its bottom, and the base plate has a slide rail corresponding to the track wheels, with the track wheels movably mounted on the slide rail.
[0010] Furthermore, the positioning element consists of multiple locking bolts, which are threaded onto the mounting plate, and the base plate has positioning holes corresponding to the locking bolts.
[0011] Furthermore, the storage compartment on one side of the lower box is provided with a first staircase leading to the upper box, and the upper box is provided with a second staircase leading to the top.
[0012] Beneficial effects
[0013] Compared with the prior art, this utility model has the following advantages:
[0014] This utility model discloses a double-layer silent enclosure. A movable mounting plate is installed inside the equipment chamber of the lower enclosure. Synchronous motors on both sides drive screws, which in turn drive sliders. The sliders move the mounting plate to the outside of the lower enclosure. A crane can then be used to directly hoist a diesel generator set onto the mounting plate, which is then secured with bolts. The synchronous motors then drive the screws to move the mounting plate, carrying the generator set, into the lower enclosure. Once in the designated position, locking bolts are inserted into the positioning holes, preventing the mounting plate from moving during use. The entire process requires no manual handling, effectively improving efficiency. For efficient installation, a layered layout is adopted, placing the diesel engine unit in the lower housing and the primary silencer and ventilation duct in the upper housing. The intake and exhaust silencers create convection airflow, effectively dissipating the heat generated by the engine unit. Simultaneously, labyrinth-style silencers are installed in both the intake and exhaust silencers. Because the air intake and exhaust are on the upper level, its soundproofing effect is even quieter than ordinary silencers, truly achieving a silent environment and reducing external noise emissions. The layered layout effectively increases working space and improves maintenance convenience. The entire device possesses excellent noise reduction capabilities while being easy and quick to install, and is convenient to use and widely applicable. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is an enlarged side view of the mounting plate in this utility model.
[0017] The components are: 1-lower housing, 2-drive assembly, 3-equipment room, 4-base plate, 5-mounting plate, 6-track box, 7-slider, 8-connecting column, 9-upper housing, 10-first-stage silencer, 11-diesel generator set, 12-air intake silencer, 13-exhaust silencer, 14-electric louvers, 15-smoke outlet pipe, 16-corrugated silencer, 17-smoke outlet pipe, 18-storage room, 19-first staircase, 20-second staircase, 21-screw, 22-synchronous motor, 23-slide rail, 24-locking bolt, 25-track wheel, 26-positioning hole, 27-labyrinth silencer. Detailed Implementation
[0018] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.
[0019] See Figure 1-2As shown, this utility model discloses a double-layered soundproof enclosure, comprising a lower enclosure 1, an equipment chamber 3 in the middle of the lower enclosure 1, a base plate 4 on the equipment chamber 3, and a mounting plate 5 for mounting a diesel generator set 11 slidably mounted on the base plate 4. Track boxes 6 are located on both sides of the equipment chamber 3, and sliders 7 are slidably mounted inside the track boxes 6. A drive assembly 2 for driving the sliders 7 is mounted on the track boxes 6. The sliders 7 on both sides are connected to the rear ends of the mounting plate 5 via connecting posts 8. An upper enclosure 9 is located at the top of the lower enclosure 1, communicating with the lower enclosure 1. A primary silencer 1 is located in the middle of the upper enclosure 9. 0. The primary silencer 10 is connected to the exhaust port of the diesel generator set 11. An air intake silencer 12 is provided on one side of the upper housing 9, and an exhaust silencer 13 is provided on the other side of the upper housing 9. Both the air intake silencer 12 and the exhaust silencer 13 are equipped with labyrinth-type silencers 27. The mounting plate 5 is equipped with positioning parts for fixing the position. By setting a movable mounting plate 5 in the equipment chamber 3 of the lower housing 1, the synchronous motors 22 on both sides drive the screw 21. Under the action of the screw 21, the slider 7 is driven. Under the action of the slider 7, the mounting plate 5 can be moved to the outside of the lower housing 1. At this point, a crane can be used to directly hoist the diesel generator set 11 onto the mounting plate 5. Then, bolts are used to fix the diesel generator set 11 onto the mounting plate 5. Next, the synchronous motor 22 drives the screw 21, causing the mounting plate 5, carrying the diesel generator set 11, to move into the lower housing 1. Once it reaches the predetermined position, the locking bolt 24 is rotated and inserted into the positioning hole 26, preventing the mounting plate 5 from moving during use. The entire process requires no manual handling, effectively improving installation efficiency. A layered arrangement is used, with the diesel generator set 11 placed in the lower housing 1 and the upper housing 1... The enclosure 9 is equipped with a primary silencer 10 and a ventilation channel. The intake silencer 12 and the exhaust silencer 13 form a convection airflow, which effectively removes the heat generated by the engine. At the same time, a labyrinth-type silencer 27 is installed in the intake silencer 12 and the exhaust silencer 13. Since the air intake and exhaust are on the upper level, its soundproofing effect is quieter than ordinary silencers, truly achieving a silent effect and reducing noise emissions. The upper and lower level arrangement effectively increases the activity space and improves maintenance convenience. The entire device has good soundproofing capabilities and is easy and quick to install.
[0020] Specifically, the drive assembly 2 includes a synchronous motor 22 and a screw 21. The screw 21 is threadedly connected to the slider 7. Both ends of the screw 21 are rotatably mounted at both ends of the track box 6. The synchronous motor 22 is mounted at one end of the track box 6. The output end of the synchronous motor 22 is connected to the screw 21. The synchronous motors 22 on both sides work simultaneously, using the synchronous motor 22 to drive the screw 21. Under the action of the screw 21, the slider 7 is driven. Under the action of the slider 7, the mounting plate 5 can be moved to the outside of the lower housing 1. At this time, the diesel generator set 11 can be directly hoisted onto the mounting plate 5 using a crane.
[0021] Preferably, both the air intake silencing chamber 12 and the air exhaust silencing chamber 13 are equipped with motorized louvers 14. The motorized louvers 14 are used to control the air intake and exhaust process, and the louvers are closed when it rains to prevent rain.
[0022] Furthermore, the top of the upper housing 9 is provided with an exhaust pipe 17, which is connected to the first-stage muffler 10. The exhaust gas generated by the diesel engine set 11 can be discharged through the exhaust pipe 17.
[0023] Furthermore, the primary silencer 10 is connected to the diesel generator set 11 via a smoke outlet pipe 15. A corrugated silencer 16 is provided on the smoke outlet pipe 15. The corrugated silencer 16 plays a role in silencing and reducing the noise generated during smoke exhaust.
[0024] Furthermore, the bottom of the mounting plate 5 is provided with multiple track wheels 25, and the top of the base plate is provided with slide rails 23 corresponding to the track wheels 25. The track wheels 25 are movably mounted on the slide rails 23. The track wheels 25 run on the slide rails 23, which plays a supporting role, reduces the force on the slider 7, and also plays a guiding role, making the mounting plate 5 run more smoothly.
[0025] Furthermore, the positioning components are multiple locking bolts 24, which are threaded onto the mounting plate 5. The base plate 4 has positioning holes 26 corresponding to the locking bolts 24, so that the mounting plate 5 moves the diesel generator set 11 into the lower housing 1. After reaching the predetermined position, the locking bolts 24 are rotated and inserted into the positioning holes 26, so that the mounting plate 5 cannot be moved during use. The whole process does not require manual handling, which effectively improves the installation efficiency.
[0026] Furthermore, the storage compartment 18 on one side of the lower box 1 is provided with a first staircase 19 leading to the upper box 9, and the upper box 9 is provided with a second staircase 20 leading to the top. The first staircase 19 and the second staircase 20 facilitate maintenance personnel to enter the upper box 9 and its top.
[0027] In this embodiment, a double-layered soundproof enclosure is used by installing a movable mounting plate 5 inside the equipment compartment 3 of the lower enclosure 1. Synchronous motors 22 on both sides drive screws 21, which in turn drive sliders 7. The sliders 7 then move the mounting plate 5 to the outside of the lower enclosure 1. A crane can then be used to hoist the diesel generator set 11 directly onto the mounting plate 5. Bolts are then used to fix the diesel generator set 11 to the mounting plate 5. The synchronous motors 22 then drive the screws 21, moving the mounting plate 5, along with the diesel generator set 11, into the lower enclosure 1. Once the desired position is reached, the locking bolts 24 are rotated and inserted into the positioning holes 26, preventing the mounting plate 5 from moving during use. The entire process requires no manual handling, effectively improving installation efficiency. A layered layout is adopted, with the diesel engine unit 11 located in the lower housing 1 and the upper housing 9 housing the primary silencer 10 and ventilation channels. The intake silencer 12 and exhaust silencer 13 create convection airflow, effectively dissipating the heat generated by the engine unit. Simultaneously, labyrinth-type silencers 27 are installed in both the intake and exhaust silencers 12 and 13. Because the air intake and exhaust are on the upper layer, its soundproofing effect is even quieter than ordinary silencers, truly achieving a silent effect and reducing noise emissions. The layered layout effectively increases working space and improves maintenance convenience. The entire device possesses excellent soundproofing capabilities while being easy and quick to install. This utility model's double-layered soundproof enclosure, while providing excellent soundproofing, facilitates engine unit installation, effectively improving installation efficiency, and is characterized by its ease of use and strong practicality.
[0028] 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 implementation of the present utility model or the practicality of the patent.
Claims
1. A double-layered soundproof enclosure, characterized in that, The device includes a lower housing (1), an equipment chamber (3) in the middle of the lower housing (1), a base plate (4) on the equipment chamber (3), and a mounting plate (5) for mounting a diesel generator set (11) slidably mounted on the base plate (4). Track boxes (6) are located on both sides of the equipment chamber (3), and sliders (7) are slidably mounted inside the track boxes (6). A drive assembly (2) for driving the sliders (7) is located on the track boxes (6). The sliders (7) on both sides are connected to the rear ends of the mounting plate (5) via connecting columns (8). (1) An upper box (9) is provided at the top, and the upper box (9) is connected to the lower box (1). A first-stage silencer (10) is provided in the middle of the upper box (9). The first-stage silencer (10) is connected to the exhaust port of the diesel generator set (11). An air intake silencer chamber (12) is provided on one side of the upper box (9), and an exhaust silencer chamber (13) is provided on the other side of the upper box (9). A labyrinth-type silencer (27) is provided in both the air intake silencer chamber (12) and the exhaust silencer chamber (13). A positioning component for fixing the position is provided on the mounting plate (5).
2. The double-layered soundproof enclosure according to claim 1, characterized in that, The drive assembly (2) includes a synchronous motor (22) and a screw (21). The screw (21) is threadedly connected to the slider (7). Both ends of the screw (21) are rotatably mounted on both ends of the track box (6). The synchronous motor (22) is mounted on one end of the track box (6). The output end of the synchronous motor (22) is connected to the screw (21).
3. The double-layered soundproof enclosure according to claim 1, characterized in that, Both the air intake silencing chamber (12) and the air exhaust silencing chamber (13) are equipped with electric louvers (14).
4. A double-layered soundproof enclosure according to claim 1, characterized in that, The top of the upper housing (9) is provided with a smoke exhaust pipe (17), which is connected to the first-stage silencer (10).
5. A double-layered soundproof enclosure according to claim 1, characterized in that, The primary silencer (10) is connected to the diesel generator set (11) via a smoke outlet pipe (15), and a corrugated silencer (16) is provided on the smoke outlet pipe (15).
6. A double-layered soundproof enclosure according to claim 1, characterized in that, The mounting plate (5) is provided with multiple track wheels (25) at the bottom, and the bottom plate is provided with a slide rail (23) corresponding to the track wheels (25). The track wheels (25) are movably mounted on the slide rail (23).
7. A double-layered soundproof enclosure according to claim 1, characterized in that, The positioning component is a plurality of locking bolts (24), which are threaded onto the mounting plate (5). The base plate (4) has positioning holes (26) corresponding to the locking bolts (24).
8. A double-layered soundproof enclosure according to claim 1, characterized in that, The storage room (18) on one side of the lower box (1) is provided with a first staircase (19) leading to the upper box (9), and the upper box (9) is provided with a second staircase (20) leading to the top.