Low-noise type diesel generating set

Abstract

The invention discloses a low-noise type diesel generator set, and relates to the technical field of diesel generators, the low-noise type diesel generator set comprises a diesel generator body, the outer side of the diesel generator body is fixedly connected with a protective shell, the left side and the right side of the protective shell are provided with protective doors, and the upper side of the protective shell is provided with a silencer; the limiting plates are fixedly connected to the side of the diesel generator body, an adjusting plate is arranged between the limiting plates, the side of the protective door is fixedly connected with a sealing air bag, and a sealing mechanism capable of driving the sealing air bag to expand and seal is arranged between the adjusting plate and the inner side of the protective door. According to the low-noise type diesel generator set, the protective door is arranged on the outer side of the diesel generator body, the silencer is arranged on the upper side of the protective door, the diesel generator body can be protected through the protective door, meanwhile, under the auxiliary effect of the silencer, noise generated during operation of the diesel generator body can be primarily silenced, and noise propagation is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of diesel generators, in particular to a low-noise diesel generator set. Background Art

[0002] A diesel generator is a power generation equipment that uses an internal combustion engine (diesel engine) as a power source to drive the generator and convert mechanical energy into electrical energy. Diesel generators have many advantages, such as high efficiency, low cost, high reliability, and wide applicability. Diesel generators are widely used in various fields due to their high efficiency, reliability and wide applicability.

[0003] In order to ensure the normal operation of the diesel generator and extend its service life, it needs to be maintained and serviced regularly. At the same time, the diesel generator is large in size and has many parts. Unprotected diesel generators may suffer certain damage to their external parts during use, which has limitations.

[0004] In order to overcome the above defects, prior art 1 (publication number: CN114370332A, Chinese patent published on 2022-04-19) a diesel generator box and a diesel generator, including a box body, the box body includes a top plate, a front side plate, a rear side plate, a left side plate, and a right side plate, the top plate, the front side plate, the rear side plate, the left side plate, and the right side plate are an integrated structure, the left end of the top plate is provided with an exhaust port, the left side plate is provided with a side door hole, and a side door is detachably installed, the right side plate is provided with an air inlet, the front side plate is provided with a front door hole, and a front door is detachably installed, the rear side plate is provided with a rear door hole, and a rear door is detachably installed, and the rear side plate is also provided with a make way slot for facilitating the installation of an electric control box. The top plate, front side plate, rear side plate, left side plate, and right side plate of the box body are an integrated structure, so that installation and disassembly can be realized quickly, installation and maintenance are convenient, and the structure is simple and easy to realize.

[0005] There is also prior art 2 (publication number: CN106640364A, Chinese patent published on 2017-05-10) a diesel generator set structure, including: a mobile platform is arranged on a mobile roller at the lower end of the mobile platform, a supporting foot is arranged at the upper end of the mobile platform, a triangular base is arranged at the upper end of the supporting foot, and a rainproof box is arranged at the upper end of the triangular base, a sloping top plate tilted backward is arranged at the upper end of the rainproof box, a plurality of water flow holes are evenly arranged at the lower ends of both sides of the rainproof box, a lifting door that cooperates with the rainproof shell is arranged at the front end of the rainproof shell, an air inlet that is connected to the rainproof box is arranged between the lower end of the lifting door and the triangular base, an inclined cover plate parallel to the sloping top plate is arranged at the upper end of the lifting door, side cover plates parallel to the rainproof box are arranged on both sides of the lifting door, and vertical slide rails are arranged on both sides of the rainproof box.

[0006] Although the existing technologies 1 and 2 are provided with protective casings to protect the generator sets and reduce the possibility of damage to the generator sets due to external forces, their protective casings are not provided with silencer systems. During the operation of the generator sets, certain vibrations will be generated. The vibrations will cause the generator sets and the protective casings to collide with each other, thereby increasing the noise during the operation of the generator sets and causing discomfort to the staff.

[0007] Therefore, we propose a low-noise diesel generator set to solve the above problems. Summary of the invention

[0008] The object of the present invention is to provide a low-noise diesel generator set to solve the problems in the current market raised by the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solution: a low-noise diesel generator set, comprising a diesel generator body, a protective shell is fixedly connected to the outside of the diesel generator body, and protective doors are arranged on the left and right sides of the protective shell, and a muffler is arranged on the upper side of the protective shell;

[0010] A limit plate, wherein the limit plate is fixedly connected to the side of the diesel generator body, and an adjustment plate is arranged between the limit plates, a sealing airbag is fixedly connected to the side of the protective door, and a sealing mechanism that can drive the sealing airbag to expand and seal is arranged between the adjustment plate and the inner side of the protective door;

[0011] A twisted rod, wherein the twisted rod is nested and connected to the lower side of the protective shell, and the outer end of the twisted rod is threadedly connected to a connecting seat, and a positioning mechanism is provided between the side of the connecting seat and the twisted rod to assist in fixing the protective shell;

[0012] A connecting ring is fixedly connected to the outside of the diesel generator body, a fixing plate is fixedly connected to the upper inner end of the protective shell, and a shock absorbing mechanism that can buffer the vibration of the diesel generator body is arranged between the lower side of the fixing plate and the connecting ring.

[0013] Preferably, the sealing mechanism includes a counterweight block, a slide groove is provided on the inner side of the limit plate, and the counterweight block is nested and connected inside the slide groove, and a return spring is fixedly connected between the side lower end of the counterweight block and the slide groove, a slider is also nested and connected inside the slide groove, and a tooth plate is fixedly connected to the outer side of the slider, a rotating shaft is nested and connected between the two groups of limit plates, and a gear is fixedly connected to the outer side of the rotating shaft, and an adjustment plate is fixedly connected to the center of the rotating shaft;

[0014] An air supply bag is fixedly connected to the inner center of the protective shell, and a connecting pipe is connected through the air supply bag and the sealing bag.

[0015] Preferably, the sliding block is fixedly connected to the lower side of the counterweight block, and the sliding block forms a sliding structure through the counterweight block and the sliding groove, and the counterweight block forms a sliding structure through a return spring and the sliding groove.

[0016] Preferably, the toothed plate and the gear are meshed with each other, and the toothed plate drives the rotating shaft and the limiting plate through the gear to form a rotating structure, and the adjustment plate is arranged in an arc structure, and the adjustment plate is located on the inner side of the air supply airbag.

[0017] Preferably, the positioning mechanism comprises an internal thread sleeve, the internal thread sleeve is threadedly connected to the outer side of the upper end of the twisted rod, a limit rod is fixedly connected between the outer side of the lower end of the protective shell and the outer end of the twisted rod, and the connecting seat is nested and connected to the outer side of the limit rod;

[0018] A fixed shaft is fixedly connected to the side of the connecting seat, a stabilizing plate is nested and connected to the outer side of the fixed shaft, a buffer cotton is fixedly connected to the inner side of the stabilizing plate, and a torsion spring is fixedly connected between the side of the stabilizing plate and the connecting seat.

[0019] Preferably, the twisted rod and the protective shell form a rotating structure through the internal thread sleeve, and the connecting seat forms a sliding structure through the twisted rod and the limiting rod.

[0020] Preferably, the lower end of the stabilizing plate is designed as an arc-shaped inclined structure, and the stabilizing plate forms a rotating structure with a fixed shaft through a torsion spring, and four groups of stabilizing plates are distributed in a circular array about the center point of the connecting seat.

[0021] Preferably, the shock absorbing mechanism comprises a moving groove, the moving groove is opened on the lower side of the fixed plate, and a moving block is nested and connected inside the moving groove, and a buffer airbag is fixedly connected between the inner side of the moving block and the inner side of the moving groove, and a rotating rod is hinged between the lower end of the moving block and the upper side of the connecting ring;

[0022] An auxiliary air bag is fixedly connected to the inner upper side of the protective shell, and an air supply pipe is connected through the auxiliary air bag and the buffer air bag.

[0023] Preferably, the rotating rod and the moving block form a rotating structure through a connecting ring, and the moving block forms a sliding structure through the rotating rod and the moving groove.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) A protective door is provided on the outside of the diesel generator body, and a muffler is provided on the upper side of the protective door. The diesel generator body can be protected by the protective door. At the same time, with the assistance of the muffler, the noise generated by the diesel generator body during operation can be initially silenced to reduce the spread of noise;

[0026] (2) When the diesel generator body vibrates during operation, the vibration force will synchronously drive the connecting ring to vibrate. At this time, the connecting ring will pull the moving block through the rotating rod. At this time, the moving block will move along the inside of the moving groove under the pulling of the rotating rod and squeeze the buffer airbag. At this time, the buffer airbag can initially buffer the force of the moving block;

[0027] (3) When the buffer airbag is squeezed, the gas inside it will be transported to the inside of the auxiliary airbag through the air supply pipe, and then discharged outward through the auxiliary airbag to the heat dissipation holes set on the upper side of the protective shell, and the heat dissipation holes will be cleaned to reduce the possibility of dust blocking the heat dissipation holes;

[0028] (4) When the diesel generator body vibrates, the counterweight block arranged on the inner side of the limit plate will synchronously drive the slider to move down along the slide slot under its own action. When the slider moves down, it will synchronously drive the tooth plate to move down. The tooth plate will drive the gear meshing with it to rotate. At this time, the shaft will rotate synchronously under the driving action of the gear, so that the adjustment plate rotates outward and unfolds. When the adjustment plate unfolds, it will synchronously squeeze the air supply bag. At this time, the gas inside the air supply bag will be transported to the inside of the sealing bag through the connecting pipe, so that the sealing bag will expand. The expanded sealing bag will block the gap between the protective door and the protective shell, thereby reducing the possibility of collision between the protective door and the protective shell and generating noise due to the vibration of the diesel generator body;

[0029] (5) When the adjusting plate rotates and expands, it will synchronously squeeze the internal threaded sleeve, causing the internal threaded sleeve to move down along the twisted rod. At this time, the twisted rod rotates under the driving action of the internal threaded sleeve. When the twisted rod rotates, the connecting seat will synchronously move down along the limit rod. The connecting seat gradually moves down, so that the stabilizing plate contacts the ground. At this time, due to the arc setting of the lower end of the stabilizing plate, the stabilizing plate will rotate and expand along the fixed axis. The stabilizing plate can increase the support effect of the protective shell. At the same time, the buffer cotton set on the lower side of the stabilizing plate can further buffer the vibration noise of the protective shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 2 It is a schematic diagram of a three-dimensional cross-sectional structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of the diesel generator body of the present invention;

[0033] Figure 4 This is a schematic diagram of the three-dimensional structure of the adjustment plate of the present invention;

[0034] Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the limiting plate of the present invention;

[0035] Figure 6 This is a schematic diagram of the three-dimensional structure of the twisted rod of the present invention;

[0036] Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating shaft of the present invention;

[0037] Figure 8 It is a schematic diagram of a three-dimensional cross-sectional structure of a connecting seat of the present invention;

[0038] Fig. 9 This is a schematic diagram of the three-dimensional structure of the air supply airbag of the present invention;

[0039] Fig.10 It is a schematic diagram of the three-dimensional cross-sectional structure of the fixing plate of the present invention.

[0040] In the figure: 1. Diesel generator body; 2. Muffler; 3. Protective door; 4. Protective shell; 5. Sealing airbag; 6. Connecting pipe; 7. Air supply airbag; 8. Fixed plate; 9. Auxiliary airbag; 10. Limit plate; 11. Adjustment plate; 12. Connecting ring; 13. Stabilizing plate; 14. Buffer cotton; 15. Twisted rod; 16. Internal threaded sleeve; 17. Slide; 18. Reset spring; 19. Counterweight; 20. Slider; 21. Gear; 22. Rotating shaft; 23. Fixed shaft; 24. Tooth plate; 25. Connecting seat; 26. Torsion spring; 27. Rotating rod; 28. Buffer airbag; 29. ​​Air supply pipe; 30. Limit rod; 31. Moving groove; 32. Moving block. DETAILED DESCRIPTION

[0041] 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.

[0042] Embodiment 1: Figure 1 , Figure 4 , Figure 5 and Fig. 9 The technical solution shown in the figure, the present invention provides the following technical solution: a low-noise diesel generator set, a sealing mechanism is disclosed, and the sealing mechanism can prevent the protective door 3 and the protective housing 4 from colliding with each other:

[0043] A diesel generator body 1, a protective shell 4 is fixedly connected to the outside of the diesel generator body 1, and protective doors 3 are arranged on the left and right sides of the protective shell 4, and a muffler 2 is arranged on the upper side of the protective shell 4;

[0044] The limiting plate 10 is fixedly connected to the side of the diesel generator body 1, and an adjusting plate 11 is arranged between the limiting plates 10. The side of the protective door 3 is fixedly connected to the sealing airbag 5, and a sealing mechanism that can drive the sealing airbag 5 to expand and seal is arranged between the adjusting plate 11 and the inner side of the protective door 3;

[0045] The sealing mechanism includes a counterweight 19, a slide groove 17 is provided on the inner side of the limit plate 10, and the counterweight 19 is nested inside the slide groove 17, and a return spring 18 is fixedly connected between the side lower end of the counterweight 19 and the slide groove 17, a slider 20 is also nested inside the slide groove 17, and a tooth plate 24 is fixedly connected to the outer side of the slider 20, a rotating shaft 22 is nested between the two sets of limit plates 10, and a gear 21 is fixedly connected to the outer side of the rotating shaft 22, and an adjusting plate 11 is fixedly connected to the center of the rotating shaft 22.

[0046] An air supply airbag 7 is fixedly connected to the inner center of the protective shell 4, and a connecting pipe 6 is connected through the air supply airbag 7 and the sealing airbag 5, the slider 20 is fixedly connected to the lower side of the counterweight 19, and the slider 20 forms a sliding structure with the slide groove 17 through the counterweight 19, and the counterweight 19 forms a sliding structure with the slide groove 17 through the reset spring 18, the tooth plate 24 and the gear 21 are meshed with each other, and the tooth plate 24 drives the rotating shaft 22 and the limit plate 10 to form a rotating structure through the gear 21, and the adjustment plate 11 is arranged in an arc structure, and the adjustment plate 11 is located on the inner side of the air supply airbag 7.

[0047] When the diesel generator body 1 vibrates, the counterweight block 19 arranged on the inner side of the limit plate 10 will synchronously drive the slider 20 to move down along the slide groove 17 under the action of itself. When the slider 20 moves down, it will synchronously drive the tooth plate 24 to move down. The tooth plate 24 will drive the gear 21 meshing with it to rotate. At this time, the rotating shaft 22 rotates synchronously under the driving action of the gear 21, so that the adjustment plate 11 rotates outward and unfolds. When the adjustment plate 11 unfolds, it will synchronously squeeze the air supply airbag 7. At this time, the gas inside the air supply airbag 7 will be transported to the inside of the sealing airbag 5 through the connecting pipe 6, so that the sealing airbag 5 will expand. The expanded sealing airbag 5 will block the gap between the protective door 3 and the protective shell 4, thereby reducing the possibility of noise generated by the collision between the protective door 3 and the protective shell 4 due to the vibration of the diesel generator body 1.

[0048] Embodiment 2: Figure 2 , Figure 4 , Figure 6 , Figure 7 and Figure 8 The technical solution shown in the figure, the present invention provides the following technical solution: a low-noise diesel generator set, a positioning mechanism is disclosed, and the supporting effect of the protective shell 4 can be increased by the positioning mechanism:

[0049] The twisted rod 15 is nested and connected to the lower side of the protective shell 4, and the outer end of the twisted rod 15 is threadedly connected to the connecting seat 25, and a positioning mechanism that can assist in fixing the protective shell 4 is provided between the side of the connecting seat 25 and the twisted rod 15;

[0050] The positioning mechanism includes an internal thread sleeve 16, which is threadedly connected to the outer side of the upper end of the twisted rod 15, a limit rod 30 is fixedly connected between the outer side of the lower end of the protective housing 4 and the outer end of the twisted rod 15, and the connecting seat 25 is nested and connected to the outer side of the limit rod 30;

[0051] A fixed shaft 23 is fixedly connected to the side of the connecting seat 25, and a stabilizing plate 13 is nested and connected to the outer side of the fixed shaft 23, and a buffer cotton 14 is fixedly connected to the inner side of the stabilizing plate 13, a torsion spring 26 is fixedly connected between the side of the stabilizing plate 13 and the connecting seat 25, the twisted rod 15 forms a rotating structure with the protective shell 4 through the internal threaded sleeve 16, the connecting seat 25 forms a sliding structure with the limit rod 30 through the twisted rod 15, the lower end of the stabilizing plate 13 is designed with an arc-shaped inclined structure, and the stabilizing plate 13 forms a rotating structure with the fixed shaft 23 through the torsion spring 26, and four groups of stabilizing plates 13 are distributed in a circular array about the center point of the connecting seat 25.

[0052] When the adjusting plate 11 rotates and expands, it will synchronously squeeze the internal threaded sleeve 16, so that the internal threaded sleeve 16 moves down along the twisted rod 15. At this time, the twisted rod 15 rotates under the driving action of the internal threaded sleeve 16. When the twisted rod 15 rotates, the connecting seat 25 will synchronously move down along the limiting rod 30. The connecting seat 25 gradually moves down, so that the stabilizing plate 13 is in contact with the ground. At this time, due to the arc setting of the lower end of the stabilizing plate 13, the stabilizing plate 13 will rotate and expand along the fixed axis 23. The stabilizing plate 13 can increase the supporting effect of the protective shell 4. At the same time, the buffer cotton 14 arranged on the lower side of the stabilizing plate 13 can further buffer the vibration noise of the protective shell 4.

[0053] Embodiment 3: Figure 1 , Figure 2 , Figure 3 and Fig.10 The technical solution shown in the figure, the present invention provides the following technical solution: a low-noise diesel generator set, disclosing a shock absorbing mechanism, through which the vibration force 1 of the diesel generator body can be initially buffered:

[0054] A connecting ring 12, the connecting ring 12 is fixedly connected to the outside of the diesel generator body 1, the upper inner end of the protective shell 4 is fixedly connected to a fixing plate 8, and a shock absorbing mechanism that can buffer the vibration of the diesel generator body 1 is provided between the lower side of the fixing plate 8 and the connecting ring 12;

[0055] The shock absorbing mechanism includes a moving groove 31, which is opened on the lower side of the fixed plate 8, and a moving block 32 is nested and connected inside the moving groove 31, and a buffer airbag 28 is fixedly connected between the inner side of the moving block 32 and the inner side of the moving groove 31, and a rotating rod 27 is hinged between the lower end of the moving block 32 and the upper side of the connecting ring 12;

[0056] An auxiliary airbag 9 is fixedly connected to the inner upper side of the protective shell 4, and an air supply pipe 29 is connected between the auxiliary airbag 9 and the buffer airbag 28. The rotating rod 27 forms a rotating structure with the moving block 32 through the connecting ring 12, and the moving block 32 forms a sliding structure with the rotating rod 27 and the moving groove 31.

[0057] When the diesel generator body 1 vibrates during operation, the vibration force will synchronously drive the connecting ring 12 to vibrate. At this time, the connecting ring 12 will pull the moving block 32 through the rotating rod 27. At this time, the moving block 32 will move along the inside of the moving groove 31 under the pulling of the rotating rod 27, and squeeze the buffer airbag 28. At this time, the buffer airbag 28 can preliminarily buffer the force of the moving block 32. When the buffer airbag 28 is squeezed, the gas inside it will be transported to the inside of the auxiliary airbag 9 through the air supply pipe 29, and discharged outward through the auxiliary airbag 9, blowing towards the heat dissipation holes set on the upper side of the protective shell 4, and it will be cleaned to reduce the possibility of dust clogging the heat dissipation holes.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-noise diesel generator set, comprising a diesel generator body (1), a protective shell (4) fixedly connected to the outer side of the diesel generator body (1), a protective door (3) arranged on the left and right sides of the protective shell (4), and a muffler (2) arranged on the upper side of the protective shell (4); It is characterized in that The diesel generator set also includes: A limit plate (10), the limit plate (10) is fixedly connected to the side of the diesel generator body (1), and an adjustment plate (11) is arranged between the limit plates (10); a sealing airbag (5) is fixedly connected to the side of the protective door (3), and a sealing mechanism capable of driving the sealing airbag (5) to expand and seal is arranged between the adjustment plate (11) and the inner side of the protective door (3); A twisted rod (15), wherein the twisted rod (15) is nested and connected to the lower side of the protective shell (4), and the outer end of the twisted rod (15) is threadedly connected to a connecting seat (25), and a positioning mechanism that can assist in fixing the protective shell (4) is provided between the side of the connecting seat (25) and the twisted rod (15); A connecting ring (12) is fixedly connected to the outside of the diesel generator body (1); a fixing plate (8) is fixedly connected to the inner end of the upper side of the protective shell (4); and a shock absorbing mechanism capable of buffering the vibration of the diesel generator body (1) is provided between the lower side of the fixing plate (8) and the connecting ring (12).

2. A low-noise diesel generator set according to claim 1, characterized in that: The sealing mechanism comprises a counterweight (19), a slide groove (17) is provided on the inner side of the limit plate (10), and the counterweight (19) is nested in the slide groove (17), and a return spring (18) is fixedly connected between the side lower end of the counterweight (19) and the slide groove (17), a slider (20) is also nested in the slide groove (17), and a tooth plate (24) is fixedly connected to the outer side of the slider (20), a rotating shaft (22) is nested between the two groups of the limit plates (10), and a gear (21) is fixedly connected to the outer side of the rotating shaft (22), and an adjusting plate (11) is fixedly connected to the center of the rotating shaft (22); An air supply bag (7) is fixedly connected to the inner center of the protective shell (4), and a connecting pipe (6) is connected and penetrated between the air supply bag (7) and the sealing bag (5).

3. A low-noise diesel generator set according to claim 2, characterized in that: The slider (20) is fixedly connected to the lower side of the counterweight (19), and the slider (20) forms a sliding structure with the counterweight (19) and the slide groove (17), and the counterweight (19) forms a sliding structure with the slide groove (17) through a return spring (18).

4. A low-noise diesel generator set according to claim 2, characterized in that: The toothed plate (24) and the gear (21) are meshed with each other, and the toothed plate (24) drives the rotating shaft (22) and the limiting plate (10) through the gear (21) to form a rotating structure, and the adjusting plate (11) is arranged in an arc-shaped structure, and the adjusting plate (11) is located on the inner side of the air supply airbag (7).

5. A low-noise diesel generator set according to claim 1, characterized in that: The positioning mechanism comprises an internal thread sleeve (16), the internal thread sleeve (16) is threadedly connected to the outer side of the upper end of the twisted rod (15), a limiting rod (30) is fixedly connected between the outer side of the lower end of the protective shell (4) and the outer end of the twisted rod (15), and the connecting seat (25) is nested and connected to the outer side of the limiting rod (30); A fixed shaft (23) is fixedly connected to the side of the connecting seat (25), a stabilizing plate (13) is nested and connected to the outside of the fixed shaft (23), and a buffer cotton (14) is fixedly connected to the inside of the stabilizing plate (13), and a torsion spring (26) is fixedly connected between the side of the stabilizing plate (13) and the connecting seat (25).

6. A low-noise diesel generator set according to claim 5, characterized in that: The twisted rod (15) forms a rotating structure with the protective housing (4) through the internal thread sleeve (16), and the connecting seat (25) forms a sliding structure with the twisted rod (15) and the limiting rod (30).

7. A low-noise diesel generator set according to claim 5, characterized in that: The lower end of the stabilizing plate (13) is designed as an arc-shaped inclined structure, and the stabilizing plate (13) forms a rotating structure with the fixed shaft (23) through a torsion spring (26), and four groups of stabilizing plates (13) are arranged in a circular array distributed about the center point of the connecting seat (25).

8. A low-noise diesel generator set according to claim 1, characterized in that: The shock absorbing mechanism comprises a moving groove (31), the moving groove (31) is opened on the lower side of the fixed plate (8), and a moving block (32) is nested and connected inside the moving groove (31), and a buffer air bag (28) is fixedly connected between the inner side of the moving block (32) and the inner side of the moving groove (31), and a rotating rod (27) is hinged between the lower end of the moving block (32) and the upper side of the connecting ring (12); An auxiliary air bag (9) is fixedly connected to the inner upper side of the protective shell (4), and an air supply pipe (29) is connected through the auxiliary air bag (9) and the buffer air bag (28).

9. A low-noise diesel generator set according to claim 8, characterized in that: The rotating rod (27) forms a rotating structure with the connecting ring (12) and the moving block (32), and the moving block (32) forms a sliding structure with the rotating rod (27) and the moving groove (31).

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