Air compressor silencer air inlet air supplement valve plate structure
By installing an airflow compensation and air replenishment adjustment module on the air compressor silencer box shroud, the problems of insufficient airflow and fluctuations in the air replenishment plate were solved, achieving stable airflow replenishment and improved noise reduction effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LANFOKA COMPRESSOR CO LTD
- Filing Date
- 2025-09-18
- Publication Date
- 2026-07-14
AI Technical Summary
The intake air volume of a conventional air compressor silencer box cannot be compensated, resulting in insufficient air volume and the air supply plate is prone to violent fluctuations. It is impossible to adjust the minimum threshold, resulting in unstable air supply effect.
An airflow compensation module and an air supply adjustment module are installed on the shroud of the silencer box, including a box body, an air supply plate, a counterweight plate, and adjusting bolts. The center of gravity position is adjusted by the rocker-type structure and the counterweight module to control the air supply flow and the minimum opening degree.
It achieves stable airflow replenishment, avoids negative pressure airflow disturbance affecting the noise reduction effect, ensures rapid airflow replenishment of the air inlet duct and stability of the air supply plate, and avoids closure problems caused by violent fluctuations.
Smart Images

Figure CN224496699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air compressor technology, and in particular to an air compressor silencer box intake air replenishment valve plate structure. Background Technology
[0002] An air compressor is a device that compresses and increases the pressure of air, and it is widely used in various fields such as industry, agriculture, and national defense. The working principle of an air compressor mainly relies on different types of compression mechanisms, such as pistons, screws, and centrifugal compressors. As an important power source, air compressors play an irreplaceable role in modern industrial production and daily life. With continuous technological advancements and innovation, the types and performance of air compressors will continue to improve, and their application areas will become even wider.
[0003] The air inlet of a typical air compressor's silencer box has a fixed diameter, which cannot compensate for the air volume and often results in insufficient air volume. Later, an air supply valve was installed on the air cover to supply air. However, the air supply valve uses a counterweight structure and is not designed with a minimum supply air volume. This often causes the air supply valve to close momentarily due to excessive shaking during air supply. There is no minimum supply air threshold, resulting in an unstable overall supply air effect. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an air compressor silencer box air intake and replenishment valve plate structure, which can solve the problem that the conventional air compressor silencer box air shroud with air replenishment plate using a counterweight structure is prone to violent fluctuation of the air replenishment plate and cannot adjust the minimum threshold, resulting in unstable air replenishment effect.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: an air compressor silencer box air intake and replenishment valve plate structure, the innovation of which is: including a silencer box body, a fan cover, an air volume compensation module and an air replenishment adjustment module;
[0006] The silencer enclosure has a rectangular shell structure, and an air inlet is provided on one side along the length of the silencer enclosure, and a hood is provided at the air inlet; several air volume compensation holes are opened on the upper surface of the hood.
[0007] The airflow compensation module has several units and is located at the airflow compensation holes of the fan hood; the airflow compensation module includes a housing, an air supply plate, and a counterweight plate; the housing is rectangular and has openings at both the top and bottom; the housing is installed at the airflow compensation hole at the top of the fan hood; the air supply plate and the counterweight plate are connected at an obtuse angle; the air supply plate is inclinedly disposed within the housing, and an air supply shaft is provided on the lower surface of the air supply plate near both sides, and the air supply shaft is connected to the side wall of the housing via a slewing bearing; the counterweight plate extends from the top of the housing out of the outer side of the housing, and a counterweight module is provided on the counterweight plate;
[0008] The air supply adjustment module is installed on the housing; the air supply adjustment module includes an adjustment bolt and a support rod; the adjustment bolt is set on the housing in a horizontal direction, and the axis of the adjustment bolt is parallel to the axis of the air supply shaft; one end of the adjustment bolt extends to the inside of the housing, and the support rod is vertically set on the adjustment bolt inside the housing, and the tilt angle of the support rod is adjusted by rotating the adjustment bolt; one end of the support rod abuts against the surface of the air supply plate, which is used to limit the minimum opening degree of the air supply plate.
[0009] Furthermore, the counterweight module includes a counterweight nut and a counterweight screw. The counterweight nut is mounted on the surface of the counterweight plate and is positioned near the air supply shaft. The axis of the threaded hole of the counterweight nut is parallel to that of the counterweight plate. The counterweight screw cooperates with the counterweight nut and can be adjusted in position on the counterweight nut to adjust the center of gravity of the counterweight module.
[0010] Furthermore, the box body is provided with threaded holes for engaging with adjusting bolts.
[0011] Furthermore, the adjusting bolt has a mounting hole located near the end of the housing, perpendicular to the axis, for accommodating the insertion of a support rod, which is then inserted into the mounting hole on the adjusting bolt.
[0012] Furthermore, the support rod and the mounting hole on the adjusting bolt are fitted with an interference fit, and the support rod can be adjusted along the axial direction of the mounting hole on the adjusting bolt to control the length of the support rod extending beyond the adjusting bolt.
[0013] The advantages of this utility model are:
[0014] 1) In this utility model, by setting an air volume compensation module on the shroud of the silencer box, a large negative pressure is avoided in the silencer box during the air intake process, which would cause airflow disturbance and affect the silencing effect. In addition, the air supply plate and the counterweight plate work together with the air supply shaft to form a rocker structure. The center of gravity of the counterweight plate is adjusted by the counterweight module to control the air supply flow rate, so as to ensure that the air intake pipe can quickly and automatically replenish the air volume, avoiding the inconvenience of air volume adjustment. Furthermore, by setting an air supply adjustment module, the minimum opening degree of the air supply plate is effectively controlled to prevent the air supply plate from closing due to violent fluctuations, which would result in extremely unstable air supply volume. Attached Figure Description
[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0016] Figure 1 This is a schematic diagram of the air intake and replenishment valve plate structure of an air compressor silencer box according to the present invention.
[0017] Figure 2 This is a partially enlarged view of the air intake and replenishment valve plate structure of an air compressor silencer box according to this utility model. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0020] like Figure 1 Figure 2 The air compressor silencer box structure shown includes a silencer box body 1, a fan cover 2, an air volume compensation module 3, and an air replenishment adjustment module 4.
[0021] The silencer housing 1 has a rectangular shell structure, and an air inlet is provided on one side along the length of the silencer housing 1, and a fan hood 2 is provided at the air inlet; several air volume compensation holes are opened on the upper surface of the fan hood 2.
[0022] The air volume compensation module 3 has several units and is installed at the air volume compensation holes of the fan hood 2; the air volume compensation module 3 includes a box body 31, an air supply plate 32, and a counterweight plate 33; the box body 31 is rectangular and has openings at both the top and bottom; the box body 31 is installed at the air volume compensation hole at the top of the fan hood; the air supply plate 32 and the counterweight plate are connected at an obtuse angle; the air supply plate 32 is inclined inside the box body 31, and an air supply shaft 34 is provided on the lower surface of the air supply plate 32 near both sides, and the air supply shaft 34 is connected to the side wall of the box body 31 through a rotary bearing; the counterweight plate 33 extends from the top of the box body out of the outer side of the box body, and a counterweight module 5 is provided on the counterweight plate 33;
[0023] The air supply adjustment module 4 is installed on the housing 31. The air supply adjustment module 4 includes an adjustment bolt 41 and a support rod 42. The adjustment bolt 41 is set on the housing 1 in a horizontal direction, and the axis of the adjustment bolt 41 is parallel to the axis of the air supply shaft. One end of the adjustment bolt 41 extends to the inside of the housing 31, and the support rod 42 is vertically set on the adjustment bolt 41 located inside the housing 31. The tilt angle of the support rod is adjusted by rotating the adjustment bolt 41. One end of the support rod 42 abuts against the surface of the air supply plate 32 to limit the minimum opening degree of the air supply plate 32.
[0024] The counterweight module 5 includes a counterweight nut 51 and a counterweight screw 52. The counterweight nut 51 is mounted on the surface of the counterweight plate 33 and is positioned close to the air supply shaft. The axis of the threaded hole of the counterweight nut 51 is parallel to the counterweight plate 33. The counterweight screw 52 cooperates with the counterweight nut 51 and can be adjusted on the counterweight nut 51 to achieve the adjustment of the center of gravity position of the counterweight module 5.
[0025] The housing 31 has a threaded hole for engaging with the adjusting bolt 41.
[0026] The adjusting bolt 41 has a mounting hole located near the end of the box 31, perpendicular to the axis, to accommodate the insertion of the support rod 42. The support rod 42 is inserted into the mounting hole on the adjusting bolt 41.
[0027] The support rod 42 and the mounting hole on the adjusting bolt 41 are fitted with an interference fit, and the support rod 2 can be adjusted along the axial direction of the mounting hole on the adjusting bolt 41 to control the length of the support rod 42 extending out of the adjusting bolt 41.
[0028] The working principle of this utility model is as follows: By setting an airflow compensation module on the shroud of the silencer box, a large negative pressure is avoided in the silencer box during the air intake process, which would cause airflow disturbance and affect the silencing effect. In addition, the air supply plate and the counterweight plate work together with the air supply shaft to form a rocker structure. The center of gravity of the counterweight plate is adjusted by the counterweight module to control the air supply flow rate, so as to ensure that the air intake pipe can quickly and automatically replenish the air volume, avoiding the inconvenience of air volume adjustment. Furthermore, by setting an air supply adjustment module, the minimum opening degree of the air supply plate is effectively controlled to prevent the air supply plate from closing due to violent fluctuations, which would lead to extremely unstable air supply volume.
[0029] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.
Claims
1. A structure for an air compressor silencer box intake air supply valve plate, characterized in that: Includes a soundproof enclosure, a fan hood, an airflow compensation module, and an air supply adjustment module; The silencer enclosure has a rectangular shell structure, and an air inlet is provided on one side along the length of the silencer enclosure, and a hood is provided at the air inlet; several air volume compensation holes are opened on the upper surface of the hood. The airflow compensation module has several units and is located at the airflow compensation holes of the fan hood; the airflow compensation module includes a housing, an air supply plate, and a counterweight plate; the housing is rectangular and has openings at both the top and bottom; the housing is installed at the airflow compensation hole at the top of the fan hood; the air supply plate and the counterweight plate are connected at an obtuse angle; the air supply plate is inclinedly disposed within the housing, and an air supply shaft is provided on the lower surface of the air supply plate near both sides, and the air supply shaft is connected to the side wall of the housing via a slewing bearing; the counterweight plate extends from the top of the housing out of the outer side of the housing, and a counterweight module is provided on the counterweight plate; The air supply adjustment module is installed on the housing; the air supply adjustment module includes an adjustment bolt and a support rod; the adjustment bolt is set on the housing in a horizontal direction, and the axis of the adjustment bolt is parallel to the axis of the air supply shaft; one end of the adjustment bolt extends to the inside of the housing, and the support rod is vertically set on the adjustment bolt inside the housing, and the tilt angle of the support rod is adjusted by rotating the adjustment bolt; one end of the support rod abuts against the surface of the air supply plate, which is used to limit the minimum opening degree of the air supply plate.
2. The air compressor silencer box inlet air replenishment valve plate structure according to claim 1, characterized in that: The counterweight module includes a counterweight nut and a counterweight screw. The counterweight nut is mounted on the surface of the counterweight plate and is positioned near the air supply shaft. The axis of the threaded hole of the counterweight nut is parallel to the counterweight plate. The counterweight screw cooperates with the counterweight nut and its position can be adjusted on the counterweight nut to achieve the adjustment of the center of gravity of the counterweight module.
3. The air compressor silencer box inlet air replenishment valve plate structure according to claim 1, characterized in that: The box body is provided with threaded holes for engaging with adjusting bolts.
4. The air compressor silencer box inlet air replenishment valve plate structure according to claim 1, characterized in that: The adjusting bolt has a mounting hole located near the end of the housing, perpendicular to the axis, to accommodate the insertion of a support rod. The support rod is inserted into the mounting hole on the adjusting bolt.
5. The air compressor silencer box inlet air replenishment valve plate structure according to claim 4, characterized in that: The support rod and the mounting hole on the adjusting bolt are fitted with an interference fit, and the support rod can be adjusted along the axial direction of the mounting hole on the adjusting bolt to control the length of the support rod extending out of the adjusting bolt.