Filtering device for screw air compressor

Abstract

The utility model relates to a filter device for a screw air compressor, which belongs to the technical field of screw air compressors and comprises a screw air compressor body, an air inlet groove is arranged on the front side of the screw air compressor body, a mounting plate is arranged in the air inlet groove, a first filter screen is fixedly embedded on the left side surface of the mounting plate, and a second filter screen is fixedly embedded on the right side surface of the mounting plate. A rubber ring fixedly sleeves the peripheral wall of the mounting plate, two baffles are fixedly connected to the interior of the air inlet groove, positioning rods are fixedly connected to the front faces of the two baffles, and two positioning holes are formed in the back face of the mounting plate. According to the filtering device for the screw air compressor, air entering the screw air compressor body is filtered under the action of the first filtering net, the filtering effect is improved, a mounting plate is fixed through clearance fit between a positioning rod and a positioning hole, the stability of the first filtering net is improved, and meanwhile, the filtering device is convenient to use. And through clearance fit between the rubber rings and the positioning holes, the stability of the mounting plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw air compressors, in particular to a filtering device for screw air compressors. Background Art

[0002] Screw air compressors are also called screw-type air compressors. Screw air compressors use pre-packaged configurations. Screw air compressors only require a single power connection and compressed air connection, and have a built-in cooling system, which greatly simplifies installation. Screw air compressors consistently provide high-quality compressed air for all walks of life with their high performance, high efficiency, maintenance-free and high reliability. In order to protect the air compressor, a filter plate will be set to filter impurities.

[0003] Chinese patent CN219549126U discloses a screw air compressor device, which discloses a technical solution for improving the efficiency of compressed air, solving the problem that impurities and moisture are easily mixed together and blocked on the filter plate, thereby reducing the amount of air passing through the filter plate, resulting in low air compression efficiency of the air machine. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a filter device for a screw air compressor, which has the advantage of improving the filtering efficiency and solves the problem that when the device is in use, the air is filtered through the action of a filter plate, but the pore size on the filter plate is large and the filtering effect is poor, which easily causes small impurities to enter the interior of the screw air compressor, thereby reducing the use effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a filtering device for a screw air compressor, comprising a screw air compressor body, an air inlet groove is opened on the front of the screw air compressor body, a mounting plate is placed inside the air inlet groove, and a first filter is fixedly embedded on the left side of the mounting plate.

[0006] The outer peripheral wall of the mounting plate is fixedly covered with a rubber ring, the interior of the air inlet slot is fixedly connected with two baffles, the front sides of the two baffles are fixedly connected with positioning rods, the back side of the mounting plate is provided with two positioning holes, the two positioning rods extend to the interior of the two positioning holes respectively, and the outer peripheral walls of the two positioning rods are fixedly covered with rubber rings.

[0007] The screw air compressor body is provided with a cleaning component for cleaning the first filter screen.

[0008] The screw air compressor body is provided with a collecting component for collecting dust.

[0009] Furthermore, the rubber ring is a rectangular ring, the rubber ring is fitted with the air inlet slot, and the front sides of the two baffles are fitted with the back sides of the mounting plate.

[0010] Furthermore, the two positioning rods are respectively loosely matched with the two positioning holes, and the rubber ring is fitted with the positioning holes.

[0011] Furthermore, the cleaning assembly includes a fixed plate, which is fixedly connected to the front side of the screw air compressor body, a placement plate is fixedly connected to the front side of the screw air compressor body, a driving motor is fixedly installed on the top surface of the fixed plate, a scraper is placed between the placement plate and the fixed plate, the output end of the driving motor is fixedly connected to a screw having one end passing through the fixed plate and the scraper and extending to the top surface of the placement plate, a limiting rod is fixedly connected between the placement plate and the fixed plate, the limiting rod passes through the scraper, a limiting hole is provided on the scraper, and the limiting rod passes through the limiting hole.

[0012] Furthermore, the screw is rotatably connected to the fixing plate and the placing plate respectively through two bearings, a threaded hole is provided on the top surface of the scraper plate, and the screw passes through the threaded hole and is clearance-matched therewith.

[0013] Furthermore, the limiting rod and the limiting hole are clearance-matched, and the air inlet slot is located between the placement plate and the fixing plate.

[0014] Furthermore, the collecting component includes a collecting bin, which is placed on the top surface of a placing plate, the top surface of the placing plate is fixedly connected to a limiting ring, the collecting bin is located inside the limiting ring, an air outlet groove is opened on the bottom surface of the placing plate, an exhaust fan is fixedly installed on the bottom surface of the placing plate, and a second filter is fixedly inlaid on the inner bottom wall of the collecting bin.

[0015] Furthermore, the limiting ring is a rectangular ring, the four side surfaces of the collecting bin are respectively fitted one by one with the four inner side walls of the limiting ring, and the air outlet slot is covered by the exhaust fan.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. The filter device for the screw air compressor filters the air entering the screw air compressor body through the first filter screen, thereby improving the filtering effect. The mounting plate is fixed through the clearance fit between the positioning rod and the positioning hole, thereby improving the stability of the first filter screen. At the same time, the stability of the mounting plate is improved through the clearance fit between the rubber ring and the positioning hole.

[0018] 2. The filter device for the screw air compressor cleans the first filter screen through the action of the scraper to improve the filtering efficiency, and drives the scraper to move under the action of the screw, which is convenient for the staff to operate. At the same time, the dust is collected through the collection bin, which is convenient for the staff to use and is more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a filter device for a screw air compressor provided in one embodiment of the utility model;

[0021] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0022] Figure 3 A schematic diagram of the internal structure of the air inlet slot of a filter device for a screw air compressor provided by an embodiment of the utility model on the right;

[0023] Figure 4 A schematic top view of a collection bin of a filter device for a screw air compressor provided in one embodiment of the utility model.

[0024] In the figure: 1 screw air compressor body, 2 placement plate, 3 limit ring, 4 screw, 5 rubber ring, 6 mounting plate, 7 first filter, 8 scraper, 9 fixing plate, 10 driving motor, 11 limit rod, 12 collecting bin, 13 air outlet slot, 14 exhaust fan, 15 second filter, 16 baffle, 17 air inlet slot, 18 positioning rod, 19 rubber ring, 20 positioning hole, 21 limit hole. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0026] 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", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. 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 utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, 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 below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] Example 1: Please refer to Figures 1 to 4 A filter device for a screw air compressor in this embodiment includes a screw air compressor body 1. An air inlet slot 17 is provided on the front of the screw air compressor body 1. A mounting plate 6 is placed inside the air inlet slot 17. A first filter screen 7 is fixedly embedded on the left side of the mounting plate 6.

[0031] The outer peripheral wall of the mounting plate 6 is fixedly covered with a rubber ring 5, the interior of the air inlet slot 17 is fixedly connected with two baffles 16, the front sides of the two baffles 16 are fixedly connected with positioning rods 18, and the back side of the mounting plate 6 is provided with two positioning holes 20, the two positioning rods 18 extend to the inside of the two positioning holes 20 respectively, and the outer peripheral walls of the two positioning rods 18 are fixedly covered with rubber rings 19.

[0032] Among them, the rubber ring 5 is a rectangular ring, the rubber ring 5 fits with the air inlet slot 17, the front sides of the two baffles 16 fit with the back sides of the mounting plate 6, the two positioning rods 18 are respectively fitted with the two positioning holes 20, and the rubber ring 19 fits with the positioning hole 20.

[0033] Specifically, the mounting plate 6 is pushed so that the mounting plate 6 enters the interior of the air inlet slot 17, so that the mounting plate 6 and the baffle 16 fit together, and the positioning rod 18 is inserted into the interior of the positioning hole 20. The mounting plate 6 is restricted by the clearance fit between the positioning rod 18 and the positioning hole 20. The first filter screen 7 is fixed to the interior of the air inlet slot 17 through the fit between the rubber ring 19 and the positioning hole 20 and between the rubber ring 5 and the air inlet slot 17. The air passes through the air inlet slot 17 and enters the interior of the screw air compressor body 1. The air is filtered by the first filter screen 7 to prevent impurities from entering the interior of the screw air compressor body 1 as much as possible.

[0034] Example 2: Please refer to Figures 1 to 4 In this embodiment, on the basis of embodiment one, a cleaning component is provided on a screw air compressor body 1, and the cleaning component includes a fixed plate 9, which is fixedly connected to the front of the screw air compressor body 1, and a placement plate 2 is fixedly connected to the front of the screw air compressor body 1, and a driving motor 10 is fixedly installed on the top surface of the fixed plate 9, and a scraper 8 is placed between the placement plate 2 and the fixed plate 9. The output end of the driving motor 10 is fixedly connected to a screw 4 having one end penetrating the fixed plate 9 and the scraper 8 and extending to the top surface of the placement plate 2, and a limiting rod 11 is fixedly connected between the placement plate 2 and the fixed plate 9, and the limiting rod 11 penetrates the scraper 8. A limiting hole 21 is provided on the scraper 8, and the limiting rod 11 penetrates the limiting hole 21.

[0035] Among them, the screw 4 is rotatably connected to the fixed plate 9 and the placement plate 2 through two bearings respectively. A threaded hole is opened on the top surface of the scraper 8. The screw 4 passes through the threaded hole and is clearance-matched with it. The limiting rod 11 and the limiting hole 21 are clearance-matched. The air inlet groove 17 is located between the placement plate 2 and the fixed plate 9.

[0036] Specifically, the drive motor 10 is started, and the output end of the drive motor 10 drives the screw 4 to rotate. Through the threaded connection between the screw 4 and the scraper 8 and the clearance fit between the limit rod 11 and the limit hole 21, the screw 4 drives the scraper 8 to move downward to clean the impurities on the first filter screen 7.

[0037] Example 3: Please refer to Figures 1 to 4 In this embodiment, on the basis of Embodiment 1 and Embodiment 2, a collecting component is provided on the screw air compressor body 1, and the collecting component includes a collecting bin 12, and the collecting bin 12 is placed on the top surface of the placing plate 2, and the top surface of the placing plate 2 is fixedly connected to a limiting ring 3, and the collecting bin 12 is located inside the limiting ring 3, and an air outlet groove 13 is opened on the bottom surface of the placing plate 2, and an exhaust fan 14 is fixedly installed on the bottom surface of the placing plate 2, and a second filter 15 is fixedly embedded on the inner bottom wall of the collecting bin 12.

[0038] The limiting ring 3 is a rectangular ring, the four side surfaces of the collecting bin 12 are respectively fitted with the four inner side walls of the limiting ring 3 , and the air outlet slot 13 is covered by the exhaust fan 14 .

[0039] It should be noted that the exhaust fan 14 is a conventional device known to the public in the prior art, and its specific structure and working principle will not be described in detail herein.

[0040] Specifically, the collecting bin 12 is placed on the placing plate 2 and inside the limiting ring 3. The collecting bin 12 is limited on the placing plate 2 by the fit between the limiting ring 3 and the collecting bin 12. The exhaust fan 14 is started, and the exhaust fan 14 draws the impurities into the collecting bin 12. The impurities are collected by the collecting bin 12, and the impurities are limited by the second filter 15 and stored in the collecting bin 12.

[0041] The working principle of the above embodiment is:

[0042] The collecting bin 12 is placed on the placing plate 2 and is located inside the limiting ring 3. The limiting ring 3 and the collecting bin 12 are fitted together to limit the collecting bin 12 on the placing plate 2. The mounting plate 6 is pushed to allow the mounting plate 6 to enter the inside of the air inlet slot 17. The mounting plate 6 and the baffle 16 are fitted together. The positioning rod 18 is inserted into the inside of the positioning hole 20. The mounting plate 6 is restricted by the clearance fit between the positioning rod 18 and the positioning hole 20. The first filter screen 7 is fixed inside the air inlet slot 17 by the fit between the rubber ring 19 and the positioning hole 20 and between the rubber ring 5 and the air inlet slot 17. The air passes through the air inlet slot 17 and enters the inside of the screw air compressor body 1. Under the action of a filter 7, the air is filtered to prevent impurities from entering the interior of the screw air compressor body 1 as much as possible, and the drive motor 10 and the exhaust fan 14 are started. The output end of the drive motor 10 drives the screw 4 to rotate, and through the threaded connection between the screw 4 and the scraper 8 and the clearance fit between the limit rod 11 and the limit hole 21, the screw 4 drives the scraper 8 to move downward to clean the impurities on the first filter 7. The exhaust fan 14 draws the impurities into the interior of the collection bin 12, and the impurities are collected by the collection bin 12. The impurities are restricted by the second filter 15 and stored in the collection bin 12.

[0043] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0044] 1. The filter device for the screw air compressor filters the air entering the screw air compressor body through the first filter screen, thereby improving the filtering effect. The mounting plate is fixed through the clearance fit between the positioning rod and the positioning hole, thereby improving the stability of the first filter screen. At the same time, the stability of the mounting plate is improved through the clearance fit between the rubber ring and the positioning hole.

[0045] 2. The filter device for the screw air compressor cleans the first filter screen through the action of the scraper to improve the filtering efficiency, and drives the scraper to move under the action of the screw, which is convenient for the staff to operate. At the same time, the dust is collected through the collection bin, which is convenient for the staff to use and is more convenient and practical.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter device for a screw air compressor, comprising a screw air compressor body, characterized in that: An air inlet slot is provided on the front of the screw air compressor body, a mounting plate is placed inside the air inlet slot, and a first filter is fixedly embedded on the left side of the mounting plate; The outer peripheral wall of the mounting plate is fixedly sleeved with a rubber ring, the interior of the air inlet slot is fixedly connected with two baffles, the front faces of the two baffles are fixedly connected with positioning rods, the back face of the mounting plate is provided with two positioning holes, the two positioning rods extend to the interior of the two positioning holes respectively, and the outer peripheral walls of the two positioning rods are fixedly sleeved with rubber rings; The screw air compressor body is provided with a cleaning component, and the screw air compressor body is provided with a collecting component.

2. The filter device for a screw air compressor according to claim 1, characterized in that: The rubber ring is a rectangular ring, the rubber ring is fitted with the air inlet slot, and the front sides of the two baffles are fitted with the back side of the mounting plate.

3. The filter device for a screw air compressor according to claim 2, characterized in that: The two positioning rods are respectively matched with the two positioning holes in a clearance, and the rubber ring is fitted with the positioning holes.

4. The filter device for a screw air compressor according to claim 1, characterized in that: The cleaning assembly includes a fixed plate, which is fixedly connected to the front side of the screw air compressor body, a placement plate is fixedly connected to the front side of the screw air compressor body, a driving motor is fixedly installed on the top side of the fixed plate, a scraper is placed between the placement plate and the fixed plate, an output end of the driving motor is fixedly connected to a screw having one end penetrating the fixed plate and the scraper and extending to the top side of the placement plate, a limiting rod is fixedly connected between the placement plate and the fixed plate, the limiting rod penetrates the scraper, a limiting hole is provided on the scraper, and the limiting rod penetrates the limiting hole.

5. The filter device for a screw air compressor according to claim 4, characterized in that: The screw is rotatably connected to the fixing plate and the placing plate respectively through two bearings. A threaded hole is provided on the top surface of the scraper plate. The screw passes through the threaded hole and is clearance-matched with the threaded hole.

6. The filter device for a screw air compressor according to claim 5, characterized in that: The limiting rod and the limiting hole are clearance-matched, and the air inlet slot is located between the placement plate and the fixing plate.

7. The filter device for a screw air compressor according to claim 4, characterized in that: The collecting component includes a collecting bin, which is placed on the top surface of a placing plate, the top surface of the placing plate is fixedly connected to a limiting ring, the collecting bin is located inside the limiting ring, an air outlet groove is opened on the bottom surface of the placing plate, an exhaust fan is fixedly installed on the bottom surface of the placing plate, and a second filter is fixedly inlaid on the inner bottom wall of the collecting bin.

8. The filter device for a screw air compressor according to claim 7, characterized in that: The limiting ring is a rectangular ring, the four side surfaces of the collecting bin are respectively fitted with the four inner side walls of the limiting ring, and the air outlet slot is covered by the exhaust fan.

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