Noise reduction device of screw air compressor

Abstract

The utility model discloses a screw air compressor noise reduction device which comprises a protective shell and a movable pulling plate, a movable cover is detachably installed on the top of the protective shell, a noise reduction cushion material is arranged on the inner surface of the bottom of the protective shell, an air compressor body is arranged on the top of the noise reduction cushion material, and a handle is fixedly installed on one side of the movable pulling plate. The side faces of the multiple pushing pieces are fixedly connected with first springs and contact pins respectively, the ends, away from the pushing pieces, of the first springs are fixedly connected with fixing pieces, the ends of the contact pins and the middles of the side faces of the pushing pieces are fixedly installed, and the outer surfaces of the contact pins and the middles of the fixing pieces are slidably installed. A storage frame plate is fixedly installed on the side face of the fixing piece, and noise reduction cotton is arranged in the storage frame plate. And by means of the inserting type fixing mode of the inserting needles, the silencing cotton can be conveniently installed, the silencing cotton can be replaced in an auxiliary mode due to the fact that the movable pulling plate and other structures are convenient to disassemble, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor technical field more specifically, the utility model relates to a screw air compressor noise reduction device. BACKGROUND

[0002] Screw air compressor is a kind of high-efficiency, reliable positive displacement compressor, through the two intermeshing helical rotors (male rotor and female rotor) rotation in airtight cavity, continuous compression air, widely used in manufacturing, chemical industry, medical field, meet the medium-high pressure gas source demand;

[0003] Through the retrieval, the publication number CN220929681U discloses a screw air compressor noise reduction device, including protective shell and soundproof cotton, the left side of the protective shell is fixedly connected with water tank, the top of the water tank is communicated with the column body hose, the right side of the column body hose is connected with the elongated water tank through the protective shell, the outer wall of the column body hose is fixedly connected with water pump, the right side of the protective shell is fixedly connected with the hollow tube at the top end of the middle part;

[0004] But, this screw air compressor noise reduction device still has some drawbacks, for example: the above technical scheme reduces air compressor operating noise by fixing sound-absorbing pad, soundproof cotton and fiberboard etc. materials on inner wall, but in actual application, traditional soundproof cotton will gradually become brittle and pulverized due to long-term use, reducing sound insulation effect, and fixedly connected sound insulation and noise reduction materials are difficult to disassemble and replace, not only leading to continuous attenuation of noise reduction effect, but also hindering daily filter core replacement, belt maintenance and other maintenance operations. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a screw air compressor noise reduction device to solve the problem that the long-term noise reduction effect is difficult to continue in the prior art because the fixed sound insulation layer of part noise reduction scheme can reduce noise for a short term, but has the double defects of material aging failure and hindering equipment maintenance.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: a screw air compressor noise reduction device, comprising

[0007] The protective shell is detachably installed with a movable cover on the top, and the inner surface of the bottom of the protective shell is provided with sound-absorbing pad material, the two sides of the sound-absorbing pad material in length direction are connected with the protective shell through bolts, and the top of the sound-absorbing pad material is provided with an air compressor main body.

[0008] The utility pull plate is provided with a plurality of handle pulling plates, and the side surface close to the handle pulling plate is matched with the outer wall of the protective shell and the upper surface of the movable cover, the outer surface of the insertion pin is slidably connected with the inner surface of the storage frame plate and the sound-absorbing cotton, the outer surface of the storage frame plate is fixedly connected with the inner wall of the protective shell and the lower surface of the movable cover, and the middle part of the side close to the handle pulling plate of the plurality of utility pull plates is provided with two groups of symmetrically arranged buckle mechanisms.

[0009] The outer surface of the insertion pin is slidably connected with the inner surface of the storage frame plate and the sound-absorbing cotton, the outer surface of the storage frame plate is fixedly connected with the inner wall of the protective shell and the lower surface of the movable cover, and the middle part of the side close to the handle pulling plate of the plurality of utility pull plates is provided with two groups of symmetrically arranged buckle mechanisms.

[0010] The outer surface of the insertion pin is slidably connected with the inner surface of the storage frame plate and the sound-absorbing cotton, the outer surface of the storage frame plate is fixedly connected with the inner wall of the protective shell and the lower surface of the movable cover, and the middle part of the side close to the handle pulling plate of the plurality of utility pull plates is provided with two groups of symmetrically arranged buckle mechanisms.

[0011] The outer surface of the insertion pin is slidably connected with the inner surface of the storage frame plate and the sound-absorbing cotton, the outer surface of the storage frame plate is fixedly connected with the inner wall of the protective shell and the lower surface of the movable cover, and the middle part of the side close to the handle pulling plate of the plurality of utility pull plates is provided with two groups of symmetrically arranged buckle mechanisms.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] In the scheme, through the setting of the movable pull plate, the storage frame plate, the sound-absorbing cotton and the like, after a period of use, the staff can replace the aging sound-absorbing cotton limited in the storage frame plate, first adjust the buckle mechanism to cancel the limitation of the movable pull plate, then pull the movable pull plate attached to the surface of the protective shell or the movable cover in the direction away from the protective shell or the movable cover by means of the surface-mounted handle, drive the plurality of pushing pieces mounted on the side of the handle to slide in the inner wall of the protective shell and the movable cover, so that the insertion needle fixedly connected to the surface of the middle part of the pushing piece is slid along the inner wall of the fixed piece, the storage frame plate and the sound-absorbing cotton, until the insertion needle is moved out of the sound-absorbing cotton, at this time, the storage frame plate can be freely moved in the sound-absorbing cotton, and after the staff replaces it, the movable pull plate and the like are installed in the original position, so that the insertion needle is inserted into the sound-absorbing cotton and is limited in the storage frame plate, so that the insertion of the insertion needle can facilitate the installation of the sound-absorbing cotton, and the detachable movable pull plate and the like can assist the replacement of the sound-absorbing cotton, thereby improving the practicality of the device.

[0014] In the scheme, through the setting of the air outlet pipe, the motor, the fan blade and the like, during the actual operation of the air compressor main body, the staff can control the motor to start, drive the fan blade fixedly sleeved on the output end to rotate, the hot air in the inner cavity of the protective shell heated due to the operation of the air compressor main body is discharged through the air outlet pipe, and the cold air outside enters the inside of the protective shell through the diagonally arranged air inlet pipe under the action of air pressure, so that the circulation effect of air is realized, thereby achieving the heat dissipation and cooling treatment of the air in the protective shell and the air compressor main body, and through the threaded connection, the sound-absorbing cotton can be quickly disassembled or installed when it needs to be replaced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a structure schematic view of the air compressor main body, the sound-absorbing pad and the like of the utility model;

[0017] Figure 3 It is a structure schematic view of the insertion needle, the storage frame plate, the sound-absorbing cotton and the like of the utility model;

[0018] Figure 4 It is a structure schematic view of the buckle mechanism of the utility model;

[0019] Figure 5 It is a structure schematic view of the motor, the fan blade and the connecting rod of the utility model.

[0020] [REFERENCE SIGNS]

[0021] 1, protective shell; 2, movable cover; 3, air compressor main body; 4, sound-absorbing pad; 5, movable pull plate; 6, push piece; 7, fixed piece; 8, spring one; 9, pin; 10, storage frame plate; 11, sound-absorbing cotton; 12, buckle mechanism; 120, fixed block; 121, movable plate; 122, spring two; 123, lever; 124, protruding column; 125, bearing block; 13, air outlet pipe; 14, air inlet pipe; 15, motor; 16, fan blade; 17, connecting rod. DETAILED DESCRIPTION

[0022] To make the technical problems, technical solutions and advantages to be solved by the utility model more clear, the following will be described in detail in combination with the drawings and specific embodiments.

[0023] As shown in the accompanying Figure 1 to the accompanying Figure 5 The embodiment of the utility model provides a screw air compressor noise reduction device, comprising

[0024] The protective shell 1 is detachably installed with the movable cover 2 at the top, the inner surface of the bottom of the protective shell 1 is provided with the sound-absorbing pad 4, the sound-absorbing pad 4 is connected with the protective shell 1 through bolts at both sides in the length direction, and the top of the sound-absorbing pad 4 is provided with the air compressor main body 3.

[0025] By setting the sound-absorbing pad 4, the side edges at the four corners of the sound-absorbing pad 4 are fixed with the inner wall of the protective shell 1 through bolts, which can be taken out from the inside of the protective shell 1 after the bolts are removed, and the shielding problem caused by the fixed storage frame plate 10 in the inner wall of the protective shell 1 can be reduced due to the flexible material texture.

[0026] The movable pull plate 5 is fixedly installed with a handle on one side and a plurality of push pieces 6 on the other side, the side surface of each push piece 6 is fixedly connected with a spring one 8 and a pin 9, the end of the spring one 8 away from the push piece 6 is fixedly connected with a fixed piece 7, the end of the pin 9 is fixedly installed with the middle part of the side surface of the push piece 6, and the outer surface is slidingly installed with the middle part of the fixed piece 7, the side surface of the fixed piece 7 is fixedly installed with a storage frame plate 10, and the inside of the storage frame plate 10 is provided with sound-absorbing cotton 11.

[0027] By setting the spring one 8, when the movable pull plate 5 moves outward, the push piece 6 gradually moves away from the fixed piece 7, which will pull the spring one 8 connected between them to stretch, and after the external force of the movable pull plate 5 disappears, the reset action of the spring one 8 will pull the push piece 6 to the fixed piece 7, and drive the installed pin 9 to insert into the inside of the sound-absorbing cotton 11.

[0028] The plurality of movable pull plates 5 are arranged on the side surface close to the pushing piece 6 and are respectively attached to the outer wall of the protective shell 1 and the upper surface of the movable cover 2, the outer surface of the insertion pin 9 is slidably sleeved with the inner surface of the storage frame plate 10 and the sound-absorbing cotton 11, the outer surface of the plurality of storage frame plates 10 is respectively fixedly installed on the inner wall of the protective shell 1 and the lower surface of the movable cover 2, and the middle part of the side close to the handle of the plurality of movable pull plates 5 is provided with two groups of symmetrically arranged buckle mechanisms 12.

[0029] The buckle mechanism 12 comprises a fixed block 120 and a receiving block 125, the surface of the fixed block 120 is fixedly installed on the surface of the side close to the handle of the movable pull plate 5, the side surface of the fixed block 120 is hingedly connected with two movable plates 121, the middle part of the side away from each other of the two movable plates 121 is fixedly connected with a spring 122, the end of the spring 122 away from the movable plate 121 is connected with the movable pull plate 5 through a vertical plate, the side surface of the end of the movable plate 121 away from the fixed block 120 is fixedly installed with a convex column 124, and the upper surface is fixedly installed with a push rod 123, the lower surface of the receiving block 125 is fixedly connected with the outer surface of the protective shell 1 and the upper surface of the movable cover 2, and the middle part is provided with a groove for inserting the convex column 124.

[0030] By arranging the buckle mechanism 12, before moving the movable pull plate 5, the two push rods 123 are pressed to be close to each other, the ends of the movable plates 121 connected with the convex columns 124 are close to each other, until they are attached to each other, at this time, the convex column 124 buckled in the receiving block 125 is separated from the groove in the receiving block 125, then the movable pull plate 5 is moved to separate the end of the movable plate 121 from the receiving block 125, and when installing, the end of the movable plate 121 is pressed into the receiving block 125, under the elastic reset of the spring 122, the convex column 124 is reinserted into the receiving block 125, and the buckling fixing effect is realized.

[0031] The utility model also comprises an air outlet pipe 13 and an air inlet pipe 14, the end of the air outlet pipe 13 is screw connected with the inner surface of the side wall of the protective shell 1 and the inner surface of the storage frame plate 10 close to the side wall of the movable cover 2 of the side, the bottom end of the air inlet pipe 14 is screw connected with the inner surface of the movable cover 2 and the inner surface of the storage frame plate 10 close to the lower surface of the movable cover 2, the inner walls of the air outlet pipe 13 and the air inlet pipe 14 are all treated, the inner surface of the end of the air outlet pipe 13 away from the storage frame plate 10 is fixedly connected with a connecting rod 17, the end of the connecting rod 17 is fixedly installed with a motor 15, and the output end of the motor 15 is fixedly sleeved with a fan blade 16.

[0032] The working process of the utility model is as follows:

[0033] The air compressor body 3 is protected by being placed in the protection shell 1, and the noise generated during the operation of the air compressor body 3 is absorbed and isolated by the sound-absorbing cotton 11 arranged around the inner wall of the protection shell 1 and the lower surface of the movable cover 2 and the sound-absorbing pad 4 installed at the bottom of the protection shell 1, so that the noise reduction effect is achieved.

[0034] After a period of use, the staff can replace the aging sound-absorbing cotton 11 limited in the inside of the storage frame plate 10. The movable pull plate 5 is first released from the limiting of the buckle mechanism 12, and then the movable pull plate 5 is pulled away from the protection shell 1 or the movable cover 2 by the surface-mounted handle, so that the plurality of push pieces 6 mounted on the side away from the handle of the movable pull plate 5 slide in the inner wall of the protection shell 1 and the movable cover 2, so that the plug pin 9 fixedly connected to the middle surface of the push piece 6 slides along the inner wall of the fixed piece 7, the storage frame plate 10 and the sound-absorbing cotton 11 until the plug pin 9 moves out of the inside of the sound-absorbing cotton 11. At this time, the storage frame plate 10 can be freely moved in the inside of the sound-absorbing cotton 11. After the staff replaces it, the movable pull plate 5 and other structures are installed in the original position, so that the plug pin 9 is inserted into the inside of the sound-absorbing cotton 11 and is limited in the inside of the storage frame plate 10.

[0035] In addition, during the actual operation of the air compressor body 3, the staff can control the motor 15 to start and drive the fan blade 16 fixedly sleeved on the output end to rotate. The hot air in the inner cavity of the protection shell 1 heated due to the operation of the air compressor body 3 is discharged through the air outlet pipe 13, and the cold air outside enters the inside of the protection shell 1 through the diagonal air inlet pipe 14 under the action of air pressure, so that the air circulation effect is achieved.

[0036] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0037] Secondly: the structure involved in the drawings of the utility model disclosed in the embodiment only relates to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, and in the case of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0038] Finally: the above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement and the like made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A screw air compressor noise reduction device, characterized by, Comprising The top of the protective shell (1) is detachably mounted with a movable cover (2), the inner surface of the bottom of the protective shell (1) is provided with a sound-absorbing pad (4), the length direction of the sound-absorbing pad (4) is connected with the protective shell (1) by bolts, and the top of the sound-absorbing pad (4) is provided with an air compressor main body (3); A movable pull plate (5) is fixedly installed with a handle on one side, and a plurality of push pieces (6) are fixedly installed on the other side, the side surface of each push piece (6) is fixedly connected with a spring (8) and a pin (9), the end of the spring (8) away from the push piece (6) is fixedly connected with a fixed piece (7), the end of the pin (9) is fixedly installed with the middle part of the side surface of the push piece (6), and the outer surface is slidably installed with the middle part of the fixed piece (7), the side surface of the fixed piece (7) is fixedly installed with a storage frame plate (10), and the inside of the storage frame plate (10) is provided with sound-absorbing cotton (11).

2. The screw air compressor noise reduction apparatus of claim 1, wherein, The movable pull plate (5) is provided with a plurality of, and the side surface close to the push piece (6) is respectively matched with the outer wall of the protective shell (1) and the upper surface of the movable cover (2), the outer surface of the pin (9) is slidably sleeved with the inner surface of the storage frame plate (10) and the sound-absorbing cotton (11), the outer surface of the plurality of storage frame plates (10) is respectively fixedly installed with the inner wall of the protective shell (1) and the lower surface of the movable cover (2), and the middle part of the side close to the handle of the plurality of movable pull plates (5) is provided with two groups of symmetrically arranged buckle mechanisms (12).

3. The screw air compressor noise reduction apparatus of claim 2, wherein, The buckle mechanism (12) comprises a fixed block (120) and a receiving block (125), the surface of the fixed block (120) is fixedly installed with the surface of the side close to the handle of the movable pull plate (5), the side surface of the fixed block (120) is hingedly connected with two movable plates (121), the middle part of the side away from each other of the two movable plates (121) is fixedly connected with a spring (122), the end of the spring (122) away from the movable plate (121) is connected with the movable pull plate (5) through a vertical plate, the side surface of the end of the movable plate (121) away from the fixed block (120) is fixedly installed with a convex column (124), and the upper surface is fixedly installed with a push rod (123), the lower surface of the receiving block (125) is fixedly connected with the outer surface of the protective shell (1) and the upper surface of the movable cover (2), and the middle part is provided with a groove for inserting the convex column (124).

4. The screw air compressor noise reduction apparatus of claim 1, wherein, It also includes the air outlet pipe (13), air inlet pipe (14), the end of the air outlet pipe (13) is connected with the inner surface of the side wall of the protective shell (1) and the inner surface of the frame plate (10) of the movable cover (2) side wall near the side, the bottom end of the air inlet pipe (14) is connected with the inner surface of the movable cover (2) and the inner surface of the frame plate (10) near the lower surface of the movable cover (2), the inner wall of the air outlet pipe (13) and the air inlet pipe (14) is treated for filtering, the inner surface of the end of the air outlet pipe (13) away from the frame plate (10) is fixedly connected with the connecting rod (17), the end of the connecting rod (17) is fixedly installed with the motor (15), the output end of the motor (15) is fixedly sleeved with the fan blade (16).

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