Compressed air filter and filter element

Abstract

The utility model provides a compressed air filter and a filter element, the compressed air filter comprises a shell and the filter element, an upper mounting disc and a lower mounting disc are arranged in the shell, the upper mounting disc, the lower mounting disc and the shell jointly define a filter element mounting space, and the filter element is mounted in the filter element mounting space; an upper end cover and a lower end cover are respectively arranged at two ends of the filter element, the upper end cover is connected and fixed with the upper mounting disc through a first connecting mechanism, and the lower end cover is connected and fixed with the lower mounting disc through a second connecting mechanism. According to the utility model, the two ends of the filter element are respectively and fixedly connected with the upper mounting disc and the lower mounting disc in the shell through the first connecting mechanism and the second connecting mechanism, so that the two ends of the filter element are effectively fixed, and the mounting stability and firmness of the filter element are greatly improved; the filter element is not easy to shake or shake under frequent impact of high-pressure airflow, so that the sealing effect of the filter element is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a compressed air filter and a filter element. Background Art

[0002] Compressed air is an indispensable source of energy in many industrial and commercial applications. However, compressed air often contains various impurities and moisture, which may cause damage to production equipment and final products. Therefore, in order to ensure high-quality compressed air supply, it is necessary to use appropriate compressed air post-processing equipment to treat and purify the compressed air. Compressed air filters are one of the most basic equipment in compressed air post-processing. They are usually composed of filter elements and filter housings to filter out impurities such as oil, solid particles and liquid water in the air.

[0003] Existing compressed air filter elements are usually connected to the filter housing by threaded locking or push-pull mounting. In this filter element installation method, only one end of the filter element is fixedly connected to the filter housing, and the other end of the filter element cannot be effectively fixed to the filter housing. Due to the long overall length of the filter element, the filter element using this single-end fixed installation method is prone to shaking under the frequent impact of high-pressure airflow, affecting the sealing effect of the filter element, and even causing the upper end cover to deform and fall off. Summary of the invention

[0004] The utility model aims to solve the deficiencies in the prior art and provide a compressed air filter and a filter element.

[0005] The purpose of the utility model is achieved through the following technical scheme: a compressed air filter, including a shell, a filter element, an upper mounting plate and a lower mounting plate are arranged in the shell, the upper mounting plate, the lower mounting plate and the shell together define a filter element installation space, and the filter element is installed in the filter element installation space; an upper end cover and a lower end cover are respectively arranged at both ends of the filter element, the upper end cover is connected and fixed to the upper mounting plate by a first connecting mechanism, and the lower end cover is connected and fixed to the lower mounting plate by a second connecting mechanism.

[0006] In the utility model, the two ends of the filter element are fixedly connected to the upper mounting plate and the lower mounting plate inside the shell through the first connecting mechanism and the second connecting mechanism respectively, so that the two ends of the filter element are effectively fixed, which greatly improves the stability and firmness of the filter element installation. The filter element adopts this double-end fixed installation method, and the filter element is not easy to shake or vibrate when it is frequently impacted by high-pressure airflow, thereby avoiding the damage to the sealing effect of the filter element.

[0007] Preferably, the upper mounting plate is provided with a filter element mounting hole for inserting the filter element, the outer side of the filter element mounting hole is surrounded by a groove, and a sealing ring is embedded in the groove.

[0008] Preferably, the first connecting mechanism includes a fixing hole arranged on the upper mounting plate, a fixing part arranged on the upper end cover, and a threaded body, the threaded body passes through a slot on the fixing part and is connected to the fixing hole, and the fixing part is fastened to the upper mounting plate through the threaded body.

[0009] Preferably, the second connecting mechanism includes an external threaded joint and an internal threaded hole, the external threaded joint is arranged on the lower end cover or the lower mounting plate, and the internal threaded hole is arranged on the lower mounting plate or the lower end cover, and the lower end cover is fixed to the lower mounting plate through the connection between the external threaded joint and the internal threaded hole.

[0010] Preferably, a cover plate is provided on the top of the shell, and an air outlet is provided on the cover plate; an air inlet is provided on the side of the shell, and the air inlet is connected to the filter element installation space; and a sewage outlet is provided at the lower end of the shell.

[0011] Preferably, the cover plate and the shell are connected by bolts.

[0012] A filter element is used to be arranged in the filter element installation space of a compressed air filter, comprising a filter layer, wherein an upper end cover and a lower end cover are respectively arranged at both ends of the filter layer, the upper end cover is provided with a fixing part, and the fixing part is provided with a slot; the lower end cover is provided with an external threaded joint or an internal threaded hole.

[0013] Preferably, the filter layer has a wave-like pleated structure.

[0014] Preferably, the fixing portions are arranged in a circular array at the outer edge of the upper end cover, and the fixing portions protrude outward along the diameter direction of the upper end cover.

[0015] The beneficial effect of the utility model is that in the utility model, the two ends of the filter element are fixedly connected to the upper mounting plate and the lower mounting plate inside the shell through the first connecting mechanism and the second connecting mechanism respectively, so that the two ends of the filter element are effectively fixed, which greatly improves the stability and firmness of the filter element installation. The filter element adopts this double-end fixed installation method, and the filter element is not easy to shake or vibrate when it is frequently impacted by high-pressure airflow, thereby avoiding the damage to the sealing effect of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 A schematic diagram of the upper installation disk.

[0018] Figure 3 The following is a schematic diagram of the installation disk.

[0019] Figure 4 Schematic diagram of the filter element structure.

[0020] Figure 5A top view of the upper end cover.

[0021] In the figure: 1, shell, 2, cover plate, 3, air outlet, 4, upper mounting plate, 5, lower mounting plate, 6, filter element, 7, air inlet, 8, sewage outlet, 9, groove, 10, fixing hole, 11, filter element mounting hole, 12, internal thread hole, 13, upper end cover, 14, lower end cover, 15, filter layer, 16, external thread joint, 17, slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0023] like Figures 1 to 5 As shown, a compressed air filter is characterized in that it includes a shell body 1 and a filter element 6. An upper mounting plate 4 and a lower mounting plate 5 are provided in the shell body 1. The upper mounting plate 4, the lower mounting plate 5 and the shell body 1 together define a filter element installation space, and the filter element 6 is installed in the filter element installation space; an upper end cover 13 and a lower end cover 14 are respectively provided at both ends of the filter element 6, the upper end cover 13 is connected and fixed to the upper mounting plate 4 through a first connecting mechanism, and the lower end cover 14 is connected and fixed to the lower mounting plate 5 through a second connecting mechanism.

[0024] In the utility model, the two ends of the filter element 6 are fixedly connected to the upper mounting plate 4 and the lower mounting plate 5 inside the shell 1 through the first connecting mechanism and the second connecting mechanism, so that the two ends of the filter element 6 are effectively fixed, which greatly improves the stability and firmness of the installation of the filter element 6. The filter element 6 adopts this double-end fixed installation method. The filter element 6 is not prone to shaking or vibrating when frequently impacted by high-pressure airflow, thereby avoiding the sealing effect of the filter element 6 from being destroyed.

[0025] The upper mounting plate 4 is provided with a filter element mounting hole 11 for inserting the filter element 6, and a groove 9 is arranged around the outer side of the filter element mounting hole 11, and a sealing ring is embedded in the groove 9. The groove 9 is annular, and the diameter and groove width of the groove 9 are both adapted to the specifications of the sealing ring; when the filter element 6 is inserted into the filter element mounting hole 11, the sealing between the upper end of the filter element 6 and the upper mounting plate 4 is achieved by the sealing ring. The sealing ring can be an O-ring.

[0026] The first connection mechanism includes a fixing hole 10 provided on the upper mounting plate 4, a fixing part provided on the upper end cover 13, and a threaded body. The threaded body passes through the slot 17 on the fixing part and is connected to the fixing hole 10, and the fixing part is fastened to the upper mounting plate 4 through the threaded body. The threaded body can be selected from various types of screws, screws, studs, etc., and the inside of the fixing hole 10 is provided with an internal thread that matches the external thread on the threaded body. The threaded body is threadedly connected to the fixing hole 10. After the threaded body is tightened, the fixing part is tightly fixed to the upper mounting plate 4 by the threaded body, thereby fixing the upper end of the filter element 6.

[0027] The second connection mechanism includes an external thread joint 16 and an internal thread hole 12, the external thread joint 16 is arranged on the lower end cover 14 or the lower mounting plate 5, the internal thread hole 12 is arranged on the lower mounting plate 5 or the lower end cover 14, and the lower end cover 14 is fixed to the lower mounting plate 5 through the connection between the external thread joint 16 and the internal thread hole 12. In this embodiment, the internal thread hole 12 is arranged on the lower mounting plate 5, and the external thread joint 16 is arranged on the lower end cover 14.

[0028] The shape of the lower mounting plate 5 can be set according to actual needs. In the present embodiment, the shape of the lower mounting plate 5 is a "cross" shape.

[0029] The top of the housing 1 is provided with a cover plate 2, and an air outlet 3 is provided on the cover plate 2; an air inlet 7 is provided on the side of the housing 1, and the air inlet 7 is communicated with the filter element installation space; a sewage outlet 8 is provided at the lower end of the housing 1. Air enters the housing 1 through the air inlet 7, and enters the filter element 6 after passing through the filter layer 15 on the filter element 6. The filtered air is discharged from the opening at the upper end of the filter element 6 and finally discharged to the outside through the air outlet 3; the filtered solid particles and other impurities are blocked on the outside of the filter element 6, and the impurities fall off the filter element 6 and fall into the bottom of the housing. A sewage valve is provided on the sewage outlet 8, and the impurities accumulated at the bottom of the housing are discharged by opening the sewage valve.

[0030] In some embodiments of the present application, the cover plate 2 is connected to the housing 1 by bolts.

[0031] In other embodiments of the present application, the cover plate 2 and the housing 1 are connected by welding.

[0032] The utility model also provides a filter element, which is used to be arranged in the filter element installation space of a compressed air filter, including a filter layer 15, and an upper end cover 13 and a lower end cover 14 are respectively arranged at both ends of the filter layer 15, and a fixing part is arranged on the upper end cover 13, and a slot 17 is arranged on the fixing part; an external threaded joint 16 or an internal threaded hole 12 is arranged on the lower end cover 14.

[0033] The filter layer 15 is a wave-type pleated structure. The fixing parts are arranged at the outer edge of the upper end cover 13 in a circular array, and the fixing parts protrude outward along the diameter direction of the upper end cover 13 .

[0034] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. A compressed air filter, characterized in that: It includes a shell and a filter element. An upper mounting plate and a lower mounting plate are arranged in the shell. The upper mounting plate, the lower mounting plate and the shell together define a filter element installation space. The filter element is installed in the filter element installation space. An upper end cover and a lower end cover are respectively arranged at both ends of the filter element. The upper end cover is connected and fixed to the upper mounting plate by a first connecting mechanism, and the lower end cover is connected and fixed to the lower mounting plate by a second connecting mechanism.

2. A compressed air filter according to claim 1, characterized in that: The upper mounting plate is provided with a filter element mounting hole for inserting the filter element, the outer ring of the filter element mounting hole is provided with a groove, and a sealing ring is embedded in the groove.

3. A compressed air filter according to claim 1, characterized in that: The first connecting mechanism includes a fixing hole arranged on the upper mounting plate, a fixing part arranged on the upper end cover, and a threaded body. The threaded body passes through a slot on the fixing part and is connected to the fixing hole. The fixing part is fastened to the upper mounting plate through the threaded body.

4. A compressed air filter according to claim 1, characterized in that: The second connection mechanism includes an external threaded joint and an internal threaded hole. The external threaded joint is arranged on the lower end cover or the lower mounting plate, and the internal threaded hole is arranged on the lower mounting plate or the lower end cover. The lower end cover is fixed to the lower mounting plate through the connection between the external threaded joint and the internal threaded hole.

5. A compressed air filter according to claim 1, characterized in that: The top of the shell is provided with a cover plate, and the cover plate is provided with an air outlet; the side of the shell is provided with an air inlet, and the air inlet is communicated with the filter element installation space; the lower end of the shell is provided with a sewage outlet.

6. A compressed air filter according to claim 5, characterized in that: The cover plate is connected to the shell through bolts.

7. A filter element, used to be arranged in the filter element installation space of the compressed air filter according to any one of claims 1 to 6, characterized in that: The filter comprises a filter layer, wherein an upper end cover and a lower end cover are respectively arranged at two ends of the filter layer, a fixing part is arranged on the upper end cover, and a clamping groove is arranged on the fixing part; and an external thread joint or an internal thread hole is arranged on the lower end cover.

8. The filter element according to claim 7, characterized in that: The filter layer is a wave-type pleated structure.

9. The filter element according to claim 7, characterized in that: The fixing parts are arranged in a circular array at the outer edge of the upper end cover, and the fixing parts protrude outward along the diameter direction of the upper end cover.

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