A new filter mechanism used in air compressors

Abstract

The present invention relates to the field of air compressors, and specifically to a new filter mechanism applied to air compressors, comprising an upper shell, a middle shell and a lower shell arranged in layers, the middle shell being connected to the lower shell, the lower shell being connected to the main engine of the air compressor, and the upper shell, the middle shell and the lower shell are all detachably connected. The middle shell comprises a number of independent units arranged in a straight line, the independent unit is a hollow structure, a filter element is arranged inside the independent unit, a through air inlet is arranged on the first side of the independent unit, the tops of several independent units are connected to the same upper shell, the bottoms of several independent units are connected to the same lower shell, and several independent units are respectively connected to the lower shell. The new filter mechanism also comprises a block, the block is connected to the upper shell, a slide groove is arranged on the first side of several independent units near one end of the lower shell, the block is slidably connected to the slide groove, and a through hole is arranged in the middle of the block.

Description

Technical Field

[0001] The invention relates to the field of air compressors, and in particular to a novel filter mechanism applied to air compressors. Background Art

[0002] The filter is an important component of the air compressor. The function of the filter is to filter the dust and impurities in the air at the air intake end of the air compressor. During the normal maintenance process, as the use time increases, the dust and impurities accumulated on the filter will become more and more (especially in places with poor use environment), thereby reducing the intake volume and resulting in a reduction in exhaust volume, which reduces the efficiency of the air compressor and increases the use cost. At present, the service life of the filter is 2000 to 3000 hours, which is relatively short. In view of the technical problems existing in the existing filters, the traditional treatment method is to rely on manual removal and replacement of filters that have reached the end of their service life, but this is bound to increase the amount of manual maintenance, thereby increasing the use cost.

[0003] The present invention provides a novel filter mechanism applied to an air compressor. The novel filter mechanism has a long service life, can improve the use efficiency of the air compressor and reduce the manual maintenance cost, thereby reducing the maintenance cost.

[0004] The “left”, “center” and “right” described in the present invention all take the first side surface as a reference plane. Summary of the invention

[0005] To achieve the above purpose, the present invention adopts the following technical solution: a new filter mechanism applied to an air compressor, comprising an upper shell, a middle shell and a lower shell arranged in layers, the middle shell is connected to the lower shell, the lower shell is connected to the main engine of the air compressor, and the upper shell, the middle shell and the lower shell are all detachably connected. After the air compressor is started, the main engine of the air compressor starts to compress air, and at this time, the air enters the main engine through the middle shell and the lower shell in sequence.

[0006] The middle shell includes several independent units arranged in a straight line. The independent units are hollow structures. A filter element is arranged inside the independent units. A penetrating air inlet is arranged on the first side of the independent units. The tops of several independent units are connected to the same upper shell. The bottoms of several independent units are connected to the same lower shell. Several independent units are connected to the lower shell respectively. The air entering the independent unit through the air inlet enters the lower shell and then enters the main unit after being filtered by the filter element.

[0007] Taking into account factors such as comprehensive cost and the compatibility of the new filter mechanism with the existing air compressor, the preferred number of independent units is three.

[0008] The novel filter mechanism also includes a block connected to the upper shell, a slide groove is provided on the first side of the independent unit near one end of the lower shell, the block is slidably connected to the slide groove, and a through hole is provided in the middle of the block. The novel filter mechanism provided by the present invention controls the use of filter elements in different independent units by sliding the block along the slide groove. The aperture size and position of the air inlet of the independent unit and the width of the block need to be matched and designed.

[0009] Specifically, the novel filter mechanism provided by the present invention realizes the use of filter elements in three different independent units in the following manner:

[0010] 1. When the filter element in the independent unit on the left side needs to be put into use, the block moves to the right, and the air inlet hole of the independent unit on the left side is exposed, and the air inlet holes of the independent units in the middle and right sides are blocked by the block. The through hole of the block is located between the air inlet holes of the independent units in the middle and right sides. At this time, the air enters the lower housing through the filter element in the independent unit on the left side, and the filter elements in the independent units in the middle and right sides do not work;

[0011] 2. When the filter element in the middle independent unit needs to be put into use, the block moves until its through hole is connected to the air inlet hole of the middle independent unit. At this time, the air inlet hole of the middle independent unit is exposed, and the air inlet holes of the left and right independent units are blocked by the two ends of the block. At this time, the air enters the lower housing through the filter element in the middle independent unit, and the filter elements in the left and right independent units do not work;

[0012] 3. When the filter element in the independent unit on the right needs to be put into use, the block moves to the left, and the air inlet hole of the independent unit on the right is exposed, and the air inlet holes of the independent units in the middle and on the left are blocked by the block. The through hole of the block is located between the air inlet holes of the independent units in the middle and on the left. At this time, the air enters the lower shell through the filter element in the independent unit on the right, and the filter elements in the independent units in the middle and on the left do not work.

[0013] Furthermore, the cross-sectional area of ​​the upper shell is larger than the cross-sectional area of ​​the middle shell, and an inner groove is provided at one end of the bottom of the upper shell near the first side surface, and the stopper is connected to the inside of the upper shell through the inner groove. The outer side surfaces of the middle shell except the first side surface are provided with support blocks, and the outer side surface of the upper shell is provided with a protruding block that cooperates with the support block. A fastening device is provided on the support block, and the fastening device rotates around the connection between it and the support block, and the fastening device cooperates with the protruding block. The upper shell and the middle shell can be detachably connected by the cooperation and engagement of the fastening device and the protruding block, so that the filter element in the middle shell is convenient to replace after reaching the service life, and when replacing the filter element, only the independent unit can be replaced. A driving module for driving the stopper to move along the slide groove is provided inside the upper shell, and the specific structure of the driving module can adopt the combined driving structure of the motor and the gear structure in the prior art, and the part of the stopper located inside the upper shell can be set as a gear bar structure and cooperates with the gear, and the free end of the motor drives the gear, and the gear drives the gear bar to realize the movement of the stopper. In the present invention, the control of the motor inside the upper shell can adopt the PLC control motor in the prior art. The control of the motor is achieved by the PLC arranged inside the upper shell. The operator can control the start and stop of the motor by programming the PLC, thereby realizing the periodic reciprocating movement of the block along the slide groove, thereby realizing the periodic use of the filter elements in the three independent units, and the operator can control the alternating time of the cycle to prevent the excessive use of the filter elements in the three independent units, thereby increasing the service life of the filter elements and extending the maintenance cycle.

[0014] Preferably, the middle shell and the lower shell can be snap-fitted together by snapping together at the connection.

[0015] Furthermore, a connecting hole is provided at the bottom of the independent unit, and a matching connecting hole corresponding to the connecting hole is provided at the top of the lower shell. The filter element is a cylindrical air filter element, the diameter of the cylindrical air filter element is larger than the diameter of the connecting hole and the cylindrical air filter element covers the connecting hole. An air outlet is provided on the side of the lower shell, and the lower shell is connected to the main engine of the air compressor through the air outlet. The cylindrical air filter element can adopt any cylindrical air filter element disclosed in the prior art, and the cylindrical air filter element covers the connecting hole so that the air entering the independent unit must pass through the cylindrical air filter element before it can enter the lower shell through the connecting hole and the matching connecting hole in sequence. Preferably, the top of the cylindrical air filter element is connected to the top of the independent unit.

[0016] In view of the problem of short service life of filters used in air compressors in the prior art, the present invention provides a new filter mechanism used in air compressors. The new filter mechanism is provided with a plurality of independent units to increase the number of filter elements, and the use of the filter elements is controlled by blocks (for example, the alternating time of the cycle is controlled to 3000 hours, that is, every 3000 hours, the filter elements in the adjacent independent units are automatically switched to use), thereby extending the maintenance cycle. When replacing the filter element with the new filter mechanism provided by the present invention, it is only necessary to replace the independent unit, which reduces the manual workload and reduces the maintenance cost. The new filter mechanism used in air compressors provided by the present invention can improve the use efficiency and service life of the air compressor, and can extend the maintenance time from the traditional 2-3 thousand hours to 6-9 thousand hours. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings further illustrate the present invention, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0018] Figure 1 A schematic structural diagram of a new filter mechanism applied to an air compressor provided in one embodiment of the present invention.

[0019] Figure 2 A three-dimensional diagram of a novel filter mechanism provided in accordance with an embodiment of the present invention.

[0020] Figure 3 A right side view of a novel filter mechanism provided in accordance with an embodiment of the present invention.

[0021] Figure 4 A schematic diagram of the middle shell structure provided in one embodiment of the present invention.

[0022] Figure 5 A bottom view of a middle shell provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] like Figure 1-5 As shown in the figure, a novel filter mechanism for an air compressor provided by an embodiment of the present invention comprises an upper shell 1, a middle shell 2 and a lower shell 3 arranged in layers, the middle shell 2 is connected to the lower shell 3, an air outlet 31 is arranged on the side of the lower shell 3, and the lower shell 3 is connected to the main engine 4 of the air compressor through the air outlet 31. The upper shell 1, the middle shell 2 and the lower shell 3 are all detachably connected.

[0028] The middle shell 2 includes three independent units 21 arranged in a straight line. The independent unit 21 is a hollow structure. A cylindrical air filter element 22 is arranged inside the independent unit 21. A penetrating air inlet 23 is arranged on the first side of the independent unit 21. The tops of the three independent units 21 are connected to the same upper shell 1. The bottoms of the three independent units 21 are connected to the same lower shell 3. The three independent units 21 are respectively connected to the lower shell 3.

[0029] The novel filter mechanism also includes a block 11, which is connected to the upper shell 1. The first side surfaces of the three independent units 21 are each provided with a slide groove 24 near one end of the lower shell 3. The block 11 is slidably connected to the slide groove 24, and a through hole 111 is provided in the middle of the block 11.

[0030] The cross-sectional area of ​​the upper shell 1 is larger than that of the middle shell 2 . An inner groove 12 is provided at one end of the bottom of the upper shell 1 close to the first side surface, and the stopper 11 is connected to the interior of the upper shell 1 through the inner groove 12 .

[0031] The outer side surfaces of the middle shell 2 except the first side surface are provided with support blocks 25, and the outer side surface of the upper shell 1 is provided with a protruding block 13 that cooperates with the support block 25. A fastening device 26 is provided on the support block 25, and the fastening device 26 rotates around the connection between it and the support block 25, and the fastening device 26 cooperates with the protruding block 13. A connecting hole 27 is provided at the bottom of the independent unit 21, and a matching connecting hole corresponding to the connecting hole 27 is provided at the top of the lower shell 3. The diameter of the cylindrical air filter element 22 is larger than the diameter of the connecting hole 27, and the cylindrical air filter element 22 covers the connecting hole 27.

[0032] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A new filter mechanism applied to an air compressor, characterized in that: It comprises an upper shell, a middle shell and a lower shell which are stacked, the middle shell is connected to the lower shell, the lower shell is connected to the main engine of the air compressor, and the upper shell, the middle shell and the lower shell are all detachably connected; The middle shell includes a plurality of independent units arranged in a straight line, the independent units are hollow structures, a filter element is arranged inside the independent units, a penetrating air inlet hole is arranged on the first side of the independent units, the tops of the independent units are connected to the same upper shell, the bottoms of the independent units are connected to the same lower shell, and the independent units are respectively connected to the lower shell; The filter mechanism further includes a stopper connected to the upper shell, a first side surface of a plurality of the independent units is provided with a slide groove near one end of the lower shell, the stopper is slidably connected to the slide groove, and a through hole is provided in the middle of the stopper; The cross-sectional area of ​​the upper shell is larger than the cross-sectional area of ​​the middle shell, an inner groove is provided at one end of the bottom of the upper shell close to the first side surface, and the stopper is connected to the interior of the upper shell through the inner groove; The outer side surfaces of the middle shell except the first side surface are provided with support blocks, and the outer side surface of the upper shell is provided with a protruding block that cooperates with the support block; The bottom of the independent unit is provided with a connection hole, and the top of the lower shell is provided with a matching connection hole corresponding to the connection hole; An air outlet is arranged on the side of the lower shell, and the lower shell is connected with the main engine of the air compressor through the air outlet.

2. The filter mechanism according to claim 1, characterized in that: The support block is provided with a fastening device, which rotates around the connection between the fastening device and the support block, and the fastening device is engaged with the protruding block.

3. The filter mechanism according to claim 1, characterized in that: The filter element is a cylindrical air filter element, the diameter of the cylindrical air filter element is larger than the diameter of the connecting hole, and the cylindrical air filter element covers the connecting hole.

4. The filter mechanism according to any one of claims 1 to 3, characterized in that: The number of the independent units is three.

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