A low-noise diesel generator set

Abstract

The present invention discloses a low-noise diesel generator set, which relates to the technical field of diesel generators. It includes a diesel generator body, and a protective housing is fixedly connected to the outside of the diesel generator body. Protective doors are arranged on the left and right sides of the protective housing, and a muffler is arranged on the upper side of the protective housing. A limiting plate is fixedly connected to the side of the diesel generator body, and an adjusting plate is arranged between the limiting plates. A sealing airbag is fixedly connected to the side of the protective door, and a sealing mechanism capable of driving the sealing airbag to expand and seal is arranged between the adjusting plate and the inner side of the protective door. For this low-noise diesel generator set, a protective door is arranged on the outside of the diesel generator body, and a muffler is arranged on the upper side of the protective door. The protective door can protect the diesel generator body, and at the same time, with the auxiliary effect of the muffler, the noise generated during the operation of the diesel generator body can be initially silenced, reducing the spread of noise.

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 prior art 1 and the prior art 2 are provided with a protective housing to protect the generator set and reduce the possibility of damage to the generator set due to external forces, the protective housing is not provided with a sound insulation system. During the operation of the generator set, certain vibrations will be generated, and the vibrations cause the generator set to collide with the protective housing, thereby increasing the noise during the operation of the generator set and bringing discomfort to the staff.

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

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

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

[0010] Limiting plates, the limiting plates are fixedly connected to the side of the diesel generator body, an adjusting plate is arranged between the limiting plates, a sealing airbag is fixedly connected to the side of the protective door, and a sealing mechanism capable of driving the sealing airbag to expand and seal is arranged between the adjusting plate and the inner side of the protective door;

[0011] Twisted rods, the twisted rods are nested and connected to the lower side of the protective housing, a connecting seat is threadedly connected to the outer end of the twisted rods, and a positioning mechanism capable of assisting in fixing the protective housing is arranged between the side of the connecting seat and the twisted rods;

[0012] Connecting rings, the connecting rings are fixedly connected to the outside of the diesel generator body, a fixing plate is fixedly connected to the inner end of the upper side of the protective housing, and a damping mechanism capable of buffering the vibration of the diesel generator body is arranged between the lower side of the fixing plate and the connecting rings.

[0013] Preferably, the sealing mechanism includes a counterweight block, a chute is opened on the inner side of the limiting plate, the counterweight block is nested and connected inside the chute, a return spring is fixedly connected between the lower side of the counterweight block and the chute, a slider is also nested and connected inside the chute, a toothed plate is fixedly connected to the outside of the slider, a rotating shaft is nested and connected between the two limiting plates, a gear is fixedly connected to the outside of the rotating shaft, and an adjusting plate is fixedly connected to the center of the rotating shaft;

[0014] A supply airbag is fixedly connected to the center of the inner side of the protective door, and a communication pipe penetrates and connects between the supply airbag and the sealing airbag.

[0015] Preferably, the slider is fixedly connected to the lower side of the counterweight, and the slider and the chute form a sliding structure through the counterweight, and the counterweight and the chute form a sliding structure through the return spring.

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

[0017] Preferably, the positioning mechanism includes an internally threaded sleeve, the internally threaded sleeve is threadedly connected to the outer side of the upper end of the twist drill rod, a limiting rod is fixedly connected between the outer side of the lower end of the protective housing and the outer end of the twist drill rod, and the connecting seat is nested on the outer side of the limiting rod;

[0018] A fixed shaft is fixedly connected to the side of the connecting seat, a stabilizing plate is nested on 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 twist drill rod and the protective housing form a rotating structure through the internally threaded sleeve, and the connecting seat and the limiting rod form a sliding structure through the twist drill rod.

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

[0021] Preferably, the shock absorption mechanism includes a moving groove, the moving groove is opened on the lower side of the fixing plate, a moving block is nested inside the moving groove, a buffer airbag is fixedly connected between the inner side of the moving block and the inside 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 airbag is fixedly connected to the upper side inside the protective housing, and an air supply pipe penetrates and connects the auxiliary airbag and the buffer airbag.

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

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] (1) A protective door is arranged on the outer side of the diesel generator body, and a silencer is arranged on the upper side of the protective door. The protective door can protect the diesel generator body, and at the same time, with the auxiliary effect of the silencer, the noise generated during the operation of the diesel generator body can be initially silenced, reducing 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's movement;

[0027] (3) When the buffer airbag is squeezed, the gas inside it will be transported through the air supply pipe to the inside of the auxiliary airbag and discharged outward through the auxiliary airbag, blowing towards the heat dissipation holes provided on the upper side of the protective housing and cleaning them, reducing the possibility of dust clogging the heat dissipation holes;

[0028] (4) When the diesel generator body vibrates, the counterweight block provided inside the limit plate will synchronously drive the slider to move downward along the sliding groove under the action of its own gravity. While the slider moves downward, it will synchronously drive the toothed plate to move downward. The toothed plate will drive the gear meshed with it to rotate. At this time, the rotating shaft will synchronously rotate under the driving of the gear, so that the adjusting plate rotates and unfolds outward. While the adjusting plate unfolds, it will synchronously squeeze the air supply airbag. At this time, the gas inside the air supply airbag will be transported through the connecting pipe to the inside of the sealing airbag, so that the sealing airbag expands. The expanded sealing airbag will block the gap between the protective door and the protective housing, thus reducing the possibility of noise generated by the collision between the protective door and the protective housing due to the vibration of the diesel generator body;

[0029] (5) When the adjusting plate rotates and unfolds, it will synchronously squeeze the internal thread sleeve, causing the internal thread sleeve to move downward along the twist rod. At this time, the twist rod rotates under the driving of the internal thread sleeve. When the twist rod rotates, the connecting seat will synchronously move downward along the limit rod. As the connecting seat gradually moves downward, the stabilizing plate comes into contact with the ground. At this time, due to the arc-shaped setting at the lower end of the stabilizing plate, the stabilizing plate will rotate and unfold along the fixed shaft. The stabilizing plate can increase the support effect on the protective housing, and at the same time, the buffer cotton provided on the lower side of the stabilizing plate can further buffer the vibration noise of the protective housing. Description of the Drawings

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

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

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

[0033] Figure 4 is a three-dimensional structural schematic diagram of the adjusting plate of the present invention;

[0034] Figure 5 Schematic diagram of the three-dimensional sectional structure of the limit plate of the present invention;

[0035] Figure 6 Schematic diagram of the three-dimensional structure of the twist rod of the present invention;

[0036] Figure 7 Schematic diagram of the three-dimensional structure of the rotating shaft of the present invention;

[0037] Figure 8 Schematic diagram of the three-dimensional sectional structure of the connecting seat of the present invention;

[0038] Figure 9 Schematic diagram of the three-dimensional structure of the air supply airbag of the present invention;

[0039] Figure 10 Schematic diagram of the three-dimensional 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 housing; 5, sealing airbag; 6, connecting pipe; 7, air supply airbag; 8, fixing plate; 9, auxiliary airbag; 10, limit plate; 11, adjusting plate; 12, connecting ring; 13, stabilizing plate; 14, buffer cotton; 15, twist rod; 16, internal thread sleeve; 17, chute; 18, return spring; 19, counterweight; 20, slider; 21, gear; 22, rotating shaft; 23, fixed shaft; 24, toothed 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 implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Embodiment 1: As shown in Figure 1 , Figure 4 , Figure 5 and Figure 9 , the present invention provides the following technical solutions: A low-noise diesel generator set discloses a sealing mechanism, and the sealing mechanism can prevent the protective door 3 and the protective housing 4 from colliding with each other:

[0043] The diesel generator body 1, the outside of the diesel generator body 1 is fixedly connected with a protective housing 4, and protective doors 3 are arranged on the left and right sides of the protective housing 4, and a muffler 2 is arranged on the upper side of the protective housing 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. 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 adjusting plate 11 and the inner side of the protective door 3;

[0045] The sealing mechanism includes a counterweight 19. A sliding groove 17 is formed in the inner side of the limiting plate 10, and the counterweight 19 is nested in the sliding groove 17. A return spring 18 is fixedly connected between the lower end of the side of the counterweight 19 and the sliding groove 17. A slider 20 is also nested in the sliding groove 17, and a toothed plate 24 is fixedly connected to the outer side of the slider 20. A rotating shaft 22 is nested between the two limiting plates 10, and a gear 21 is fixedly connected to the outer side of the rotating shaft 22. An adjusting plate 11 is fixedly connected to the center of the rotating shaft 22.

[0046] A supply airbag 7 is fixedly connected to the center of the inner side of the protective door 3, and a communicating pipe 6 is connected through between the 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 sliding groove 17 through the counterweight 19. The counterweight 19 forms a sliding structure with the sliding groove 17 through the return spring 18. The toothed plate 24 meshes with the gear 21, and the toothed plate 24 drives the rotating shaft 22 to form a rotating structure with the limiting plate 10 through the gear 21. The adjusting plate 11 is arranged in an arc structure and is located inside the supply airbag 7.

[0047] When the diesel generator body 1 vibrates, the counterweight 19 arranged inside the limiting plate 10 will synchronously drive the slider 20 to move down along the sliding groove 17 under the action of its own gravity. While the slider 20 moves down, it will synchronously drive the toothed plate 24 to move down. The toothed plate 24 will drive the gear 21 meshing with it to rotate. At this time, the rotating shaft 22 will rotate synchronously under the driving action of the gear 21, so that the adjusting plate 11 rotates and unfolds outward. While the adjusting plate 11 unfolds, it will synchronously squeeze the supply airbag 7. At this time, the gas inside the supply airbag 7 will be transported to the inside of the sealing airbag 5 through the communicating pipe 6, so that the sealing airbag 5 expands. The expanded sealing airbag 5 will block the gap between the protective door 3 and the protective housing 4, thereby reducing the possibility of noise generated by the mutual collision between the protective door 3 and the protective housing 4 due to the vibration of the diesel generator body 1.

[0048] Embodiment 2: As Figure 2 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 8 shown in the technical solution, the present invention provides the following technical solution: A low-noise diesel generator set discloses a positioning mechanism, and the supporting effect on the protective housing 4 can be increased through the positioning mechanism:

[0049] The twist rod 15 is nested and connected to the lower side of the protective housing 4, and the outer end of the twist rod 15 is threadedly connected with a connecting seat 25, and a positioning mechanism for assisting in fixing the protective housing 4 is arranged between the side of the connecting seat 25 and the twist rod 15;

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

[0051] The side of the connecting seat 25 is fixedly connected with a fixed shaft 23, 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 twist rod 15 forms a rotating structure with the protective housing 4 through the internally threaded sleeve 16. The connecting seat 25 forms a sliding structure with the limiting rod 30 through the twist rod 15. The lower end of the stabilizing plate 13 is designed in 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 arranged in a circumferential array about the center point of the connecting seat 25.

[0052] When the adjusting plate 11 rotates and unfolds, it will simultaneously squeeze the internally threaded sleeve 16, causing the internally threaded sleeve 16 to move downward along the twist rod 15. At this time, the twist rod 15 rotates under the driving action of the internally threaded sleeve 16. When the twist rod 15 rotates, the connecting seat 25 will simultaneously move downward along the limiting rod 30. As the connecting seat 25 gradually moves downward, the stabilizing plate 13 comes into contact with the ground. At this time, due to the arc-shaped setting of the lower end of the stabilizing plate 13, the stabilizing plate 13 will rotate and unfold along the fixed shaft 23. The support effect on the protective housing 4 can be increased through the stabilizing plate 13, and the buffer cotton 14 arranged on the lower side of the stabilizing plate 13 can further buffer the vibration noise of the protective housing 4.

[0053] Embodiment 3: As Figure 1 、 Figure 2 、 Figure 3 and Figure 10 shown in the technical solution, the present invention provides the following technical solution: A low-noise diesel generator set discloses a shock absorption mechanism, and the shock absorption mechanism can initially buffer the shock force of the diesel generator body 1:

[0054] A connecting ring 12, the connecting ring 12 is fixedly connected to the outer side of the diesel generator body 1, a fixing plate 8 is fixedly connected to the inner end of the upper side of the protective housing 4, and a shock absorption mechanism for buffering the vibration of the diesel generator body 1 is arranged 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. A moving block 32 is nested and connected inside the moving groove 31. A buffer airbag 28 is fixedly connected between the inner side of the moving block 32 and the inside of the moving groove 31. 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 upper side inside the protective housing 4. An air supply pipe 29 runs through and connects the auxiliary airbag 9 and the buffer airbag 28. The rotating rod 27 and the moving block 32 form a rotating structure through the connecting ring 12, and the moving block 32 and the moving groove 31 form a sliding structure through the rotating rod 27.

[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 pull of the rotating rod 27 and squeeze the buffer airbag 28. At this time, the buffer airbag 28 can initially buffer the force of the moving block 32. When the buffer airbag 28 is squeezed, the gas inside it will be transported through the air supply pipe 29 to the inside of the auxiliary airbag 9 and discharged outward through the auxiliary airbag 9, blowing towards the heat dissipation holes provided on the upper side of the protective housing 4 and cleaning the dust on them, reducing the possibility of dust blocking the heat dissipation holes.

[0058] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within 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 door (3), and a connecting pipe (6) is connected through 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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