Damping and noise reduction device for machine room

Abstract

The invention relates to the technical field of damping equipment, in particular to a damping and noise reduction device for a machine room. The device comprises a square base, a containing cavity is formed in the center of the base, a connecting base is embedded in the containing cavity, and equipment in a machine room can be installed on the connecting base. A plurality of damping assemblies used for connecting and supporting the connecting base and the containing cavity are arranged between the connecting base and the containing cavity, and the damping assemblies can also be used for reducing vibration and noise; when transverse vibration occurs, the two damping assemblies on the diagonal lines can absorb most of vibration on the same side, and the good damping and noise reduction effects are achieved. After the damping particles are filled, low-frequency vibration noise can be absorbed, and transmission of the noise to floors and walls is reduced to a great extent; and the arrangement of the vacuum cavity further isolates a sound transmission path, so that a better noise reduction effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of shock absorbing equipment, in particular to a shock absorbing and noise reducing device for a machine room. Background Art

[0002] With the rapid development of information technology, the stability and quietness of the operating environment of the computer room, as an important place for data storage, processing and transmission, has become particularly important. However, the equipment in the computer room will inevitably generate noise and vibration during operation, which not only affects the normal operation of the equipment, but may also have a negative impact on the physical and mental health of the staff.

[0003] The equipment in the computer room will generate vibrations during operation, and these vibrations will be transmitted to the inside and outside of the computer room through the equipment base, supporting structure, etc., thus generating noise. In order to reduce the generation of vibration and noise, the following methods are generally used:

[0004] 1. Install shock-absorbing pads or shock absorbers on the equipment base and supporting structure. These shock-absorbing devices can absorb the vibration energy generated by the equipment and reduce the impact of vibration on the internal and external environment of the equipment room.

[0005] 2. For lifting equipment, such as fans, elastic hangers or hangers can be used, and shock-absorbing materials such as shock absorbers or rubber rings can be installed on the hangers to reduce the vibration and noise generated by the lifting equipment.

[0006] 3. For equipment with large vibrations such as water pumps, vibration reduction measures such as concrete vibration reduction pedestals or rubber vibration reduction pads can be used to reduce the impact of equipment vibration on the internal and external environment of the computer room.

[0007] Among them, the installation of shock-absorbing structures is the most widely used method. For example, Chinese patent publication number CN211523598U discloses a shock-absorbing and noise-reducing structure for a server room, including: a room, a shock-absorbing mechanism arranged in the room, and a noise-reducing mechanism arranged on the top of the room. The shock-absorbing mechanism absorbs the vibration generated by the equipment in the room during operation, and the noise-reducing mechanism reduces the noise generated by the equipment in the room during operation, thereby effectively reducing damage to the equipment and the impact on personnel, and increasing the service life of the equipment.

[0008] For another example, a Chinese patent with publication number CN113104707A discloses a rubber shock-absorbing device for noise reduction in an elevator machine room, comprising an upper support plate, a rubber shock-absorbing pad and a lower support plate arranged in sequence from top to bottom, wherein double-headed screws are provided on both sides of the top of the upper support plate, and the two double-headed screws pass through the upper support plate, the rubber shock-absorbing pad and the lower support plate in sequence from top to bottom, the bottoms of the two double-headed screws are screwed and tightly welded to the lower support plate, and the upper parts of the two double-headed screws are sequentially sleeved with rubber sound insulation pads and gaskets from bottom to top.

[0009] However, the shock-absorbing and noise-reducing devices in the prior art all achieve the effect of shock-absorbing and noise-reducing to a certain extent by setting rubber or shock-absorbing mechanisms at the bottom for buffering. However, they can only solve the longitudinal waves generated by part of the vibration, but cannot solve the transverse waves. The remaining longitudinal waves and transverse waves overlap and transmit with each other, which leads to further intensification of vibration and noise. Even if the shock-absorbing and noise-reducing devices are set, the noise transmitted from the ground and walls in the machine room is often above 70dB.

[0010] In order to solve the above problems, the present invention provides a vibration and noise reduction device for a machine room. Summary of the invention

[0011] The object of the present invention is to provide a vibration and noise reduction device for a machine room to solve the problems raised in the above background technology.

[0012] In order to solve the above technical problems, the present invention provides the following technical solutions: a vibration and noise reduction device for a machine room, comprising a base, a receiving cavity is provided on the base, a connecting base for connecting the equipment in the machine room is embedded in the receiving cavity, a plurality of vibration-absorbing components for connecting and supporting the two and reducing vibration and noise are provided between the connecting base and the receiving cavity, and the vibration-absorbing components include

[0013] The connecting main rod is obliquely arranged between the base and the connecting base, and is provided with a buffer spring for connecting the support and absorbing the longitudinal vibration;

[0014] The top fork rod is parallel to the horizontal plane and is hinged to the bottom surface of the connecting base;

[0015] The bottom fork rod is parallel to the horizontal plane, fixed on the bottom surface of the accommodating cavity, and connects the bottom end of the main rod with the bottom fork rod;

[0016] A side curved beam is fixed on the side of the accommodating cavity, the top of the side curved beam is hinged to the top fork rod, and the bottom of the side curved beam is fixed to the bottom fork rod;

[0017] A buffer spring is arranged on the bottom fork rod and is parallel to the horizontal plane to absorb lateral vibration.

[0018] More optimally, the connecting main rod includes a supporting rod and a fixing plate, a connecting plate is fixed on the supporting rod, the fixing plate is connected to the connecting base, and a buffer spring is arranged between the connecting plate and the fixing plate.

[0019] More optimally, the top fork rod includes a top left fork arm and a top right fork arm, the ends of which are fixed on the connecting base to assist in supporting the connecting base; compression springs are provided at the positions of the top left fork arm and the top right fork arm near the side curved beam, one end of the compression spring is fixed on the top left fork arm and the top right fork arm, and the other end is fixed on the side curved beam.

[0020] More optimally, the bottom fork rod includes a bottom left fork arm and a bottom right fork arm which are symmetrical to each other. The bottom left fork arm includes a connecting forearm, a buffer spring and a connecting rear arm which are connected in sequence. The connecting rear arm is fixed on the side curved beam, and the bottom of the connecting main rod is hinged to the connecting forearm.

[0021] More optimally, the bottom of the connecting main rod is in the shape of a fork rod, which is hinged to the two connecting forearms respectively.

[0022] More optimally, four groups of shock absorbing components are provided, two groups of shock absorbing components on the diagonal lines are in the same direction, and two groups of shock absorbing components on the same straight line are perpendicular to each other.

[0023] More optimally, sound insulation sponges are provided in the accommodating cavity between the connecting base and the bottom and side surfaces of the accommodating cavity.

[0024] More optimally, the inclination angle between the connecting main rod and the horizontal plane is 70 to 80 degrees.

[0025] More optimally, a sound insulation cavity is opened in the base, and the shape of the sound insulation cavity is a semi-enclosed structure, distributed at the bottom and sides of the base; the sound insulation cavity is filled with damping particles.

[0026] More optimally, a vacuum cavity is provided in the base, the shape of the vacuum cavity is the same as that of the sound insulation cavity, and the sound insulation cavity is covered therein.

[0027] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0028] (1) In the present invention, the device is installed on the connection base, at least four connection main rods cooperate to support the connection base and the device, and the top fork rod provides auxiliary support. When the device is running, vibration is generated, and the connection main rod absorbs the longitudinal vibration of the connection base, while the lateral vibration is transmitted to the bottom fork rod after being buffered by the inclined connection main rod. The buffer spring parallel to the horizontal plane is provided on the bottom fork rod, which can absorb the generated lateral vibration, thereby greatly reducing the generation of vibration noise.

[0029] (2) In the present invention, a compression spring is arranged on the top fork rod. When the connection base is subjected to force and vibrates, the top fork rod is pressed and sinks. The compression spring can assist the connection main rod in absorbing the longitudinal vibration, further reducing the generation of vibration noise. While assisting in supporting and absorbing vibration, it can avoid transmitting the vibration to the side base, thereby ensuring the stability and quietness of the equipment during operation.

[0030] (3) In the present invention, when lateral vibration occurs, the two groups of shock-absorbing components on the diagonal line can absorb most of the vibration on the same side, achieving good shock absorption and noise reduction effects. After filling with damping particles, it can absorb low-frequency vibration noise and greatly reduce the transmission of noise to the floor and walls; and the setting of the vacuum chamber further isolates the path of sound propagation, achieving a better noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is the overall structure diagram of Example 1;

[0032] Figure 2 This is a schematic diagram of the installation of the shock absorbing assembly in Example 1;

[0033] Figure 3 Schematic diagram of the distribution of the shock absorbing components in Example 1;

[0034] Figure 4 It is the structural diagram of Ji'an Town formed in Example 1;

[0035] Figure 5 This is a cross-sectional structural diagram of Example 1.

[0036] Among them: 1. Base; 11. Accommodating cavity; 2. Connecting base; 21. Shock absorption assembly; 3. Connecting main rod; 31. Support rod; 32. Fixed plate; 4. Top fork rod; 41. Top left fork arm; 42. Top right fork arm; 43. Compression spring; 5. Bottom fork rod; 51. Connecting front arm; 53. Connecting rear arm; 6. Side curved beam; 7. Buffer spring; 8. Sound insulation sponge; 9. Sound insulation cavity; 10. Vacuum cavity. DETAILED DESCRIPTION

[0037] 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.

[0038] The present invention provides a vibration and noise reduction device for a machine room, in which: Figures 1 to 5 As shown, it includes a square base 1, a receiving cavity 11 is provided in the center of the base 1, a connecting base 2 is embedded in the receiving cavity 11, and the connecting base 2 can be installed with the equipment in the connecting room. A plurality of shock absorbing components 21 are provided between the connecting base 2 and the receiving cavity 11 for connecting and supporting the two, and the shock absorbing components 21 can also be used to reduce the generation of vibration and noise.

[0039] In the accommodating cavity 11, at least four groups of shock absorbing components 21 are arranged. The shock absorbing components 21 include a connecting main rod 3, a top fork rod 4, a bottom fork rod 5 and a side curved beam 6. Among them, the connecting main rod 3 is tiltedly arranged between the base 1 and the connecting base 2, and is provided with a buffer spring 7 for connecting the support and absorbing longitudinal vibration; the top fork rod 4 is parallel to the horizontal plane and is hinged on the bottom surface of the connecting base 2.

[0040] The bottom fork rod 5 is parallel to the horizontal plane and fixed on the bottom surface of the accommodating cavity 11, and the bottom end of the connecting main rod 3 is connected to the bottom fork rod 5; and the side curved beam 6 is fixed on the side of the accommodating cavity 11, the top of the side curved beam 6 is hinged to the top fork rod 4, and the bottom of the side curved beam 6 is fixed to the bottom fork rod 5. In addition, a buffer spring 7 is arranged parallel to the horizontal plane on the bottom fork rod 5 to absorb lateral vibration.

[0041] The equipment is installed on the connection base 2, and at least four connection main rods 3 cooperate to support the connection base 2 and the equipment, and the top fork rod 4 provides auxiliary support. When the equipment is running, vibration is generated, and the connection main rod 3 absorbs the longitudinal vibration of the connection base 2, while the lateral vibration is buffered by the inclined connection main rod 3 and transmitted to the bottom fork rod 5. The buffer spring 7 parallel to the horizontal plane is set on the bottom fork rod 5, which can absorb the generated lateral vibration, thereby greatly reducing the generation of vibration noise.

[0042] The connecting main rod 3 includes a supporting rod 31 and a fixing plate 32. A connecting plate is fixed on the supporting rod 31. The fixing plate 32 is connected to the connecting base 2. A buffer spring 7 is arranged between the connecting plate and the fixing plate 32. The top fork rod 4 includes a top left fork arm 41 and a top right fork arm 42, both ends of which are fixed to the connecting base 2 for auxiliary support of the connecting base 2; a compression spring 43 is arranged at the position of the top left fork arm 41 and the top right fork arm 42 near the side curved beam 6, one end of the compression spring 43 is fixed to the top left fork arm 41 and the top right fork arm 42, and the other end is fixed to the side curved beam 6.

[0043] A compression spring 43 is arranged on the top fork rod 4. When the connecting base 2 is subjected to force and vibrates, the top fork rod 4 is pressed and sinks. The compression spring 43 can assist the connecting main rod 3 in absorbing the longitudinal vibration, further reducing the generation of vibration noise. While assisting in supporting and absorbing vibration, it can avoid transmitting the vibration to the side base 1, thereby ensuring the stability and quietness of the equipment during operation.

[0044] The bottom fork rod 5 includes a bottom left fork arm and a bottom right fork arm which are symmetrical to each other. The bottom left fork arm includes a connecting front arm 51, a buffer spring 7 and a connecting rear arm 53 which are connected in sequence. The connecting rear arm 53 is fixed on the side curved beam 6. The bottom of the connecting main rod 3 is hinged to the connecting front arm 51. The bottom of the connecting main rod 3 is in the shape of a fork rod and is hinged to the two connecting front arms 51. The inclination angle between the connecting main rod 3 and the horizontal plane is 70-80°.

[0045] Since the connecting main rod 3 is in an inclined state, after the connecting main rod 3 is vibrated, the lateral vibration is transmitted to the bottom fork rod 5, and the bottom fork rod 5 is displaced in the horizontal direction. The lateral vibration is absorbed by the buffer spring 7, thereby achieving the effect of reducing the lateral vibration noise. The connecting main rod 3 is hingedly arranged with the two connecting forearms 51, which can avoid the rigid deformation of the connecting main rod 3 during vibration, further reduce the possibility of noise generation, and protect the connecting main rod 3 to extend the service life.

[0046] In the present invention, four groups of shock absorbing components 21 are provided, and the two groups of shock absorbing components 21 on the diagonal line are in the same direction, and the two groups of shock absorbing components 21 on the same straight line are perpendicular to each other. When lateral vibration occurs, the two groups of shock absorbing components 21 on the diagonal line can absorb most of the vibration on the same side, achieving good shock absorption and noise reduction effects.

[0047] A soundproof cavity 9 is provided in the base 1. The soundproof cavity 9 is in the shape of a semi-enclosed structure and is distributed at the bottom and side of the base 1. The soundproof cavity 9 is filled with damping particles. A vacuum cavity 10 is provided in the base 1. The vacuum cavity 10 has the same shape as the soundproof cavity 9 and covers the soundproof cavity 9. After being filled with damping particles, low-frequency vibration noise can be absorbed, greatly reducing the transmission of noise to the floor and walls; and the setting of the vacuum cavity 10 further isolates the path of sound propagation, achieving a better noise reduction effect.

[0048] In order to verify the noise absorption effect of the present invention, according to the test method specified in GB 223372008 Social Living Environment Noise Emission Standard, a sound level meter was used to collect the noise conditions of the machine room under the same conditions, using the present invention or using general noise reduction means, and the machine room is a generator room. The specific situation is shown in Table 1, the present invention is Example 1, and the general noise reduction means using sound insulation cotton and springs is Comparative Example 1.

[0049] Table 1 Noise situation in the embodiments and comparative examples

[0050] Measuring point Example 1 (dB) Comparative Example 1 (dB) Relative decrease% In the machine room 80.74 82.48 - Room directly above the machine room 37.50 58.76 36.18 The room directly below the machine room 48.31 71.06 32.02 Room on the left side of the machine room 44.69 53.33 16.20 Room on the right side of the machine room 42.78 51.68 17.22

[0051] It can be seen from Table 1 that after using the noise reduction and shock absorption device of the present invention, the noise in the rooms around the machine room is greatly reduced. Compared with using general means, the noise reduction amplitude is as high as 36.18%, which greatly increases the effect of shock absorption and noise reduction.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vibration and noise reduction device for a machine room, characterized in that: The invention comprises a base (1), wherein a receiving cavity (11) is provided on the base (1), wherein a connecting base (2) for connecting to equipment in a machine room is embedded in the receiving cavity (11), and a plurality of shock absorbing components (21) for connecting and supporting the connecting base (2) and the receiving cavity (11) and for reducing vibration and noise are provided between the connecting base (2) and the receiving cavity (11), wherein the shock absorbing components (21) comprise A connecting main rod (3) is obliquely arranged between the base (1) and the connecting base (2), and is provided with a buffer spring (7) for connecting the support and absorbing longitudinal vibration; A top fork rod (4) is parallel to the horizontal plane and is hinged on the bottom surface of the connecting base (2); A bottom fork rod (5) is parallel to the horizontal plane and fixed on the bottom surface of the accommodating cavity (11), and the bottom end of the connecting main rod (3) is connected to the bottom fork rod (5); A side curved beam (6) is fixed on the side of the accommodating cavity (11), the top of the side curved beam (6) is hinged to the top fork rod (4), and the bottom of the side curved beam (6) is fixed to the bottom fork rod (5); The bottom fork rod (5) is provided with a buffer spring (7) arranged parallel to the horizontal plane and used for absorbing lateral vibration.

2. The vibration and noise reduction device for a machine room according to claim 1, characterized in that: The connecting main rod (3) comprises a supporting rod (31) and a fixing plate (32), the supporting rod (31) being fixed with a connecting plate, the fixing plate (32) being connected to the connecting base (2), and a buffer spring (7) being arranged between the connecting plate and the fixing plate (32).

3. The vibration and noise reduction device for a machine room according to claim 2, characterized in that: The top fork rod (4) comprises a top left fork arm (41) and a top right fork arm (42), both ends of which are fixed on the connecting base (2) for auxiliary support of the connecting base (2); compression springs (43) are arranged at positions of the top left fork arm (41) and the top right fork arm (42) close to the side curved beam (6), and one end of the compression spring (43) is fixed on the top left fork arm (41) and the top right fork arm (42). The other end is fixed on the side curved beam (6).

4. The vibration and noise reduction device for a machine room according to claim 2, characterized in that: The bottom fork rod (5) comprises a bottom left fork arm and a bottom right fork arm which are symmetrical to each other, the bottom left fork arm comprises a connecting front arm (51), a buffer spring (7) and a connecting rear arm (53) which are connected in sequence, the connecting rear arm (53) is fixed on the side curved beam (6), and the bottom of the connecting main rod (3) is hinged to the connecting front arm (51).

5. The vibration and noise reduction device for a machine room according to claim 4, characterized in that: The bottom of the connecting main rod (3) is in the shape of a fork rod and is hingedly connected to the two connecting forearms (51) respectively.

6. The vibration and noise reduction device for a machine room according to claim 1, characterized in that: The shock absorbing components (21) are provided in four groups, two groups of the shock absorbing components (21) on the diagonal lines are in the same direction, and two groups of the shock absorbing components (21) on the same straight line are perpendicular to each other.

7. The vibration and noise reduction device for a machine room according to claim 1, characterized in that: A sound insulation sponge (8) is provided in the accommodating cavity (11) between the connection base (2) and the bottom surface and the side surface of the accommodating cavity (11).

8. The vibration and noise reduction device for a machine room according to claim 1, characterized in that: The inclination angle between the connecting main rod (3) and the horizontal plane is 70-80 degrees.

9. The vibration and noise reduction device for a machine room according to claim 1, characterized in that: A soundproof cavity (9) is provided in the base (1); the soundproof cavity (9) is in the shape of a semi-enclosed structure and is distributed at the bottom and side of the base (1); and the soundproof cavity (9) is filled with damping particles.

10. The vibration and noise reduction device for a machine room according to claim 9, characterized in that: A vacuum chamber (10) is provided inside the base (1); the vacuum chamber (10) has the same shape as the sound insulation chamber (9) and covers the sound insulation chamber (9) therein.

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