Silent screw air compressor

By introducing a buffer structure with rollers and damping rods and a limiting design with telescopic rods into the silent screw air compressor, the displacement problem caused by vibration of the equipment is solved, achieving more stable movement and effective protection and noise reduction.

CN223767722UActive Publication Date: 2026-01-06QUANZHOU ZHONGLI MECHANICAL CO LTD
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Patent Information

Application Number
CN202520932566.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-01-06
Estimated Expiration
2035-05-13

AI Technical Summary

Technical Problem

Existing silent screw air compressors are prone to displacement or shaking due to vibration during operation, which affects the stability and reliability of the equipment.

Method used

The moving mechanism uses rollers and damping rods in combination, and buffers ground vibrations through a U-shaped frame and slider structure, while increasing friction with telescopic rods; the protective mechanism uses tilting plates and springs to achieve quick installation and limit the noise reduction protective shell.

Benefits of technology

It effectively buffers ground vibrations, ensures the air compressor is parked stably, prevents displacement, and provides stable protection and noise reduction.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223767722U_ABST
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Abstract

The utility model relates to the technical field of screw air compressors, and discloses a mute screw air compressor which comprises a fixing seat, a moving mechanism is arranged at the bottom of the fixing seat, a mute screw air compressor body is fixedly connected to the top of the fixing seat, a protection mechanism is arranged on the inner side of the fixing seat, a push rod is fixedly connected to the right side of the top of the fixing seat, and the push rod is fixedly connected to the right side of the top of the fixing seat. And the moving mechanism comprises a hollow block, the hollow block is fixedly connected to the bottom of the fixing base, a sliding block is slidably connected to the inner side of the hollow block, a U-shaped frame is rotatably connected to the bottom of the sliding block, and rolling wheels are rotatably connected to the inner side of the U-shaped frame. The rolling wheels are connected with the sliding blocks through the U-shaped frames, the sliding blocks can slide in the hollow blocks, the damping rods and the first springs on the top are matched, vibration caused by uneven ground can be effectively buffered when the air compressor moves, impact on equipment is reduced, the air cylinder is started to push the anti-skid plate to descend, the four telescopic rods assist in supporting, and the friction force between the air compressor and the ground is increased.
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Description

Technical Field

[0001] This utility model relates to the field of screw air compressor technology, specifically a silent screw air compressor. Background Technology

[0002] A silent screw air compressor is an air compression device that is optimized based on a screw air compressor and is characterized by reducing operating noise. It achieves the intake, compression and exhaust processes by continuously changing the volume between the teeth through the rotation of the rotor.

[0003] A silent screw air compressor, disclosed in CN221400928U, features a first and second protective cover on its exterior to prevent direct exposure to the outside environment and protect it from damage due to impacts. Noise-reducing pads absorb operating noise, enabling quiet operation. A dustproof frame with a filter screen provides initial filtration of the air entering the compressor, extending its service life.

[0004] This silent screw air compressor is moved at the bottom by casters. However, while the casters are flexible, they may cause the equipment to shift or shake due to vibration during operation, affecting its stable operation. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a silent screw air compressor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a silent screw air compressor, including a fixed base, a moving mechanism provided at the bottom of the fixed base, a silent screw air compressor body fixedly connected to the top of the fixed base, a protective mechanism provided inside the fixed base, and a push rod fixedly connected to the top right side of the fixed base;

[0007] The moving mechanism includes a hollow block, which is fixedly connected to the bottom of a fixed base. A slider is slidably connected to the inner side of the hollow block. A U-shaped frame is rotatably connected to the bottom of the slider. A roller is rotatably connected to the inner side of the U-shaped frame. A damping rod is fixedly connected to the top of the slider. The top of the damping rod is fixedly connected to the bottom of the fixed base. A first spring is sleeved around the damping rod. A cylinder is fixedly connected to the bottom of the inner side of the fixed base. An anti-slip plate is fixedly connected to the bottom of the cylinder. A telescopic rod is fixedly connected to the top of the anti-slip plate. The top of the telescopic rod is fixedly connected to the bottom of the fixed base.

[0008] Preferably, the top of the first spring is fixedly connected to the bottom of the fixed base, and the bottom of the first spring is fixedly connected to the top of the slider. By using the first spring in conjunction with the damping rod, the silent screw air compressor body can return to the equilibrium position more quickly and smoothly, thereby improving the stability and reliability of the system.

[0009] Preferably, there are four telescopic rods, which are fixedly connected to the outer top of the anti-slip plate. The telescopic rods can limit the movement of the anti-slip plate, making it more stable during the lifting and lowering process.

[0010] Preferably, the protective mechanism includes a noise-reducing protective shell disposed around the body of the silent screw air compressor. A plug plate is fixedly connected to the bottom of the noise-reducing protective shell, and the plug plate is inserted into the inner side of the fixed base. A connecting plate is fixedly connected to the top inner side of the fixed base. A drive motor is fixedly connected to the front of the connecting plate. A bidirectional threaded rod is fixedly connected to the back end of the drive motor. The bidirectional threaded rod is rotatably connected to the inner side of the connecting plate. A threaded plate is threadedly connected to the outer side of the bidirectional threaded rod. A limit rod is slidably connected to the inner side of the threaded plate. Fixed plates are fixedly connected to the front and rear sides of the limit rod. The fixed plates are fixedly connected to the top inner side of the fixed base. A sliding rod is slidably connected to the inner side of the threaded plate. An inclined plate is fixedly connected to the outer side of the sliding rod. A limit plate is fixedly connected to the inner side of the sliding rod. A second spring is sleeved around the outer side of the sliding rod.

[0011] Preferably, the outer side of the second spring is fixedly connected to the inner side of the inclined plate, and the inner side of the second spring is fixedly connected to the outer side of the threaded plate. When the inclined plate is pressed by the insert plate, the inclined plate can press the slide rod and the second spring. When the insert plate does not press the inclined plate, the elastic force of the second spring allows the inclined plate to be inserted into the insert plate and limit the insert plate, so that the noise reduction protective shell can be quickly installed on the periphery of the silent screw air compressor body to protect the silent screw air compressor body.

[0012] Preferably, there are two limiting rods, which are slidably connected to the inner side of the threaded plate. The limiting rods can limit the movement of the threaded plate, making the threaded plate more stable during movement.

[0013] Preferably, the inner side of the insert plate has a rectangular groove corresponding to the position of the inclined plate, and the inclined plate is inserted into the insert plate. The rectangular groove allows the inclined plate to be inserted into the insert plate, thus limiting the position of the insert plate.

[0014] Compared with the prior art, this utility model provides a silent screw air compressor, which has the following beneficial effects:

[0015] In this silent screw air compressor, the moving mechanism has rollers connected to a slider via a U-shaped frame. The slider can slide inside a hollow block. Together with the damping rod at the top and the first spring, it can effectively buffer the vibration caused by uneven ground when the air compressor moves, reducing the impact on the equipment. The starting cylinder pushes the anti-slip plate down, and four telescopic rods provide auxiliary support, increasing the friction with the ground and keeping the silent screw air compressor body stable, preventing displacement due to vibration during use.

[0016] In the protective mechanism of this silent screw air compressor, after the insert plate is inserted into the fixed seat, the inclined plate is inserted into the insert plate, which can limit the position of the insert plate, so that the noise reduction protective shell can be installed on the outside of the silent screw air compressor body to protect and reduce noise from the silent screw air compressor body. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the moving mechanism structure;

[0020] Figure 3 This is a schematic diagram of the protective mechanism structure;

[0021] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 for Figure 3 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Push rod; 2. Protective mechanism; 21. Limiting rod; 22. Bidirectional threaded rod; 23. Fixing plate; 24. Noise-reducing protective shell; 25. Drive motor; 26. Connecting plate; 27. Inclined plate; 28. Limiting plate; 29. ​​Threaded plate; 201. Insert plate; 202. Slide rod; 203. Second spring; 3. Fixed seat; 4. Moving mechanism; 41. Roller; 42. U-shaped frame; 43. Slider; 44. Hollow block; 45. Cylinder; 46. Telescopic rod; 47. Anti-slip plate; 48. Damping rod; 49. First spring; 5. Silent screw air compressor body. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] This utility model provides the following technical solution: Example 1

[0027] Please see Figure 1-5 This utility model provides a technical solution: a silent screw air compressor, including a fixed base 3, a moving mechanism 4 at the bottom of the fixed base 3, a silent screw air compressor body 5 fixedly connected to the top of the fixed base 3, a protective mechanism 2 on the inner side of the fixed base 3, and a push rod 1 fixedly connected to the top right side of the fixed base 3.

[0028] The moving mechanism 4 includes a hollow block 44, which is fixedly connected to the bottom of the fixed base 3. A slider 43 is slidably connected to the inside of the hollow block 44. A U-shaped frame 42 is rotatably connected to the bottom of the slider 43. A roller 41 is rotatably connected to the inside of the U-shaped frame 42. A damping rod 48 is fixedly connected to the top of the slider 43. The top of the damping rod 48 is fixedly connected to the bottom of the fixed base 3. A first spring 49 is sleeved around the damping rod 48. A cylinder 45 is fixedly connected to the bottom of the inner side of the fixed base 3. An anti-slip plate 47 is fixedly connected to the bottom of the cylinder 45. A telescopic rod 46 is fixedly connected to the top of the anti-slip plate 47. The top of the telescopic rod 46 is fixedly connected to the bottom of the fixed base 3.

[0029] Furthermore, the top of the first spring 49 is fixedly connected to the bottom of the fixed base 3, and the bottom of the first spring 49 is fixedly connected to the top of the slider 43. Through the cooperation of the first spring 49 and the damping rod 48, the silent screw air compressor body 5 can return to the balance position more quickly and smoothly, thereby improving the stability and reliability of the system.

[0030] Furthermore, there are four telescopic rods 46, which are fixedly connected to the top outer side of the anti-slip plate 47. The telescopic rods 46 can limit the movement of the anti-slip plate 47, making the anti-slip plate 47 more stable during the lifting and lowering process. Example 2

[0031] Please see Figure 1-5 Furthermore, based on Embodiment 1, the protective mechanism 2 further includes a noise-reducing protective shell 24, which is disposed around the body 5 of the silent screw air compressor. A plug plate 201 is fixedly connected to the bottom of the noise-reducing protective shell 24, and the plug plate 201 is inserted into the inner side of the fixed base 3. A connecting plate 26 is fixedly connected to the top of the inner side of the fixed base 3. A drive motor 25 is fixedly connected to the front of the connecting plate 26. A bidirectional threaded rod 22 is fixedly connected to the back of the drive motor 25. The bidirectional threaded rod 22 is rotatably connected to the inner side of the connecting plate 26. A threaded plate 29 is threadedly connected to the outer side of the bidirectional threaded rod 22. A limit rod 21 is slidably connected to the inner side of the threaded plate 29. A fixed plate 23 is fixedly connected to the front and rear sides of the limit rod 21. The fixed plate 23 is fixedly connected to the top of the inner side of the fixed base 3. A slide rod 202 is slidably connected to the inner side of the threaded plate 29. An inclined plate 27 is fixedly connected to the outer side of the slide rod 202. A limit plate 28 is fixedly connected to the inner side of the slide rod 202. A second spring 203 is sleeved around the outer side of the slide rod 202.

[0032] Furthermore, the outer side of the second spring 203 is fixedly connected to the inner side of the inclined plate 27, and the inner side of the second spring 203 is fixedly connected to the outer side of the threaded plate 29. When the inclined plate 27 is pressed by the insert plate 201, the inclined plate 27 can press the slide rod 202 and the second spring 203. When the insert plate 201 does not press the inclined plate 27, the elastic force of the second spring 203 allows the inclined plate 27 to be inserted into the insert plate 201, limiting the insert plate 201, so that the noise reduction protective shell 24 can be quickly installed on the periphery of the silent screw air compressor body 5 to protect the silent screw air compressor body 5.

[0033] Furthermore, there are two limiting rods 21, which are slidably connected to the inner side of the threaded plate 29. The limiting rods 21 can limit the movement of the threaded plate 29, making the threaded plate 29 more stable during movement.

[0034] Furthermore, a rectangular groove corresponding to the position of the inclined plate 27 is provided on the inner side of the insert plate 201, and the inclined plate 27 is inserted into the insert plate 201. Through the rectangular groove, the inclined plate 27 can be inserted into the insert plate 201 to limit the position of the insert plate 201.

[0035] In actual operation, when this device is used, the noise reduction protective shell 24 is placed on top of the fixed base 3, so that the insert plate 201 at the bottom of the noise reduction protective shell 24 can be inserted into the fixed base 3, so that the insert plate 201 can press the inclined plate 27, and the inclined plate 27 can press the slide rod 202 and the second spring 203. When the insert plate 201 does not press the inclined plate 27, the elastic force of the second spring 203 causes the second spring 203 to drive the inclined plate 27 to be inserted into the insert plate 201, fixing the insert plate 201 and the noise reduction protective shell 24. Turn on the drive motor 25, so that the drive motor 25 drives the bidirectional threaded rod 22 to rotate, so that the bidirectional threaded rod 22 drives the threaded plate 29 to move. The threaded plate 29 presses the second spring 203, so that the inclined plate 27 can be inserted into the insert plate 201 more stably. The noise reduction protective shell 24 can reduce noise and protect the silent screw air compressor body 5.

[0036] The fixed seat 3 is pushed by the push rod 1, which moves the fixed seat 3 via the roller 41. When the road surface is uneven, the roller 41 can drive the slider 43 to move upward through the U-shaped frame 42, which squeezes the damping rod 48 and the first spring 49. Through the cooperation of the damping rod 48 and the first spring 49, the damping rod 48 can drive the slider 43 to quickly return to its original position, and the roller 41 can return to its original position, making the device more stable when moving.

[0037] When it is necessary to disassemble the noise reduction protective shell 24, turn on the drive motor 25, so that the drive motor 25 drives the bidirectional threaded rod 22 to reverse, so that the bidirectional threaded rod 22 drives the limiting plate 28 to move through the threaded plate 29, so that the limiting plate 28 can drive the inclined plate 27 to move through the slide rod 202, so that the inclined plate 27 can move away from the inside of the insert plate 201, so that the staff can disassemble the noise reduction protective shell 24. The silent screw air compressor body model 5 is ZLS-Hi+, and the damping rod 48 is made of spring steel.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A silent screw air compressor comprising a fixed seat (3), characterized in that: The bottom of the fixed seat (3) is provided with a moving mechanism (4), the top of the fixed seat (3) is fixedly connected with a mute screw air compressor body (5), the inner side of the fixed seat (3) is provided with a protection mechanism (2), and the top right side of the fixed seat (3) is fixedly connected with a push rod (1). The moving mechanism (4) comprises a hollow block (44), the hollow block (44) is fixedly connected to the bottom of the fixed seat (3), the inner side of the hollow block (44) is slidably connected with a sliding block (43), the bottom of the sliding block (43) is rotatably connected with a U-shaped frame (42), the inner side of the U-shaped frame (42) is rotatably connected with a roller (41), the top of the sliding block (43) is fixedly connected with a damping rod (48), the top of the damping rod (48) is fixedly connected to the bottom of the fixed seat (3), the outer periphery of the damping rod (48) is sleeved with a first spring (49), the inner side bottom of the fixed seat (3) is fixedly connected with an air cylinder (45), the bottom of the air cylinder (45) is fixedly connected with an anti-skid plate (47), the top of the anti-skid plate (47) is fixedly connected with a telescopic rod (46), and the top of the telescopic rod (46) is fixedly connected to the bottom of the fixed seat (3).

2. A silent screw air compressor as claimed in claim 1, wherein: The top of the first spring (49) is fixedly connected to the bottom of the fixed seat (3), and the bottom of the first spring (49) is fixedly connected to the top of the sliding block (43).

3. A silent screw air compressor as claimed in claim 1, wherein: The telescopic rod (46) has four, and the four telescopic rods (46) are fixedly connected to the top outer side of the anti-skid plate (47).

4. A silent screw air compressor as claimed in claim 1, wherein: The protection mechanism (2) comprises a noise reduction protection shell (24), the noise reduction protection shell (24) is arranged on the outer periphery of the mute screw air compressor body (5), the bottom of the noise reduction protection shell (24) is fixedly connected with a plug-in plate (201), the plug-in plate (201) is inserted into the inner side of the fixed seat (3), the inner side top of the fixed seat (3) is fixedly connected with a connecting plate (26), the front surface of the connecting plate (26) is fixedly connected with a driving motor (25), the back end of the driving motor (25) is fixedly connected with a bidirectional threaded rod (22), the inner side of the connecting plate (26) is rotatably connected with the bidirectional threaded rod (22), the outer periphery of the bidirectional threaded rod (22) is threadedly connected with a threaded plate (29), the inner side of the threaded plate (29) is slidably connected with a limiting rod (21), the front and back sides of the limiting rod (21) are fixedly connected with a fixed plate (23), the fixed plate (23) is fixedly connected to the inner side top of the fixed seat (3), the inner side of the threaded plate (29) is slidably connected with a sliding rod (202), the outer side of the sliding rod (202) is fixedly connected with an inclined plate (27), the inner side of the sliding rod (202) is fixedly connected with a limiting plate (28), and the outer periphery of the sliding rod (202) is sleeved with a second spring (203).

5. A silent screw air compressor as claimed in claim 4, wherein: The outer side of the second spring (203) is fixedly connected to the inner side of the inclined plate (27), and the inner side of the second spring (203) is fixedly connected to the outer side of the threaded plate (29).

6. A silent screw air compressor as claimed in claim 4, wherein: The limiting rod (21) has two, and the two limiting rods (21) are slidably connected to the inner side of the threaded plate (29).

7. A silent screw air compressor as claimed in claim 4, wherein: The plug-in plate (201) is internally provided with a rectangular slot corresponding to the position of the inclined plate (27), and the inclined plate (27) is plugged into the plug-in plate (201).

Citation Information

Patent Citations

  • Silent screw air compressor

    CN221400928U