A filter cartridge anti-displacement positioning slot

Abstract

This utility model relates to the field of filter element technology and discloses a filter element anti-displacement positioning slot, including a filter housing and a filter element body. A positioning seat is fixedly installed inside the filter housing, and a silicone shock-absorbing pad is fixedly installed on the bottom inner side of the positioning seat. A positioning block is fixedly installed on the bottom of the filter element body, and a fixing ring is fixedly installed on the outside of the filter element body. A first sealing ring is fixedly installed on the bottom of the fixing ring. A liquid injection pipe is fixedly installed on the outside of the filter housing. Lubricating oil enters the gap between the positioning block and the positioning seat through the liquid injection pipe and the through hole, forming a lubricating protective layer, thereby absorbing vibration energy and reducing friction between the positioning seat and the positioning block, thus protecting the device. At the same time, the pad is relatively soft and is prone to wear during friction, further protecting the filter housing and the filter element body. The silicone shock-absorbing pad absorbs the vibration generated by the use of the filter element body.

Description

Technical Field

[0001] This utility model relates to the field of filter element technology, specifically a filter element anti-displacement positioning slot. Background Technology

[0002] Air filters, as the name suggests, are devices that filter air. They mainly remove dust and sand particles from the air and are widely used in air filtration in engineering vehicles, automobiles, agricultural vehicles, laboratories, sterile operating rooms, and various precision operating rooms.

[0003] During the operation of the filter, the filter element anti-displacement positioning slot is the core structure that ensures accurate positioning of the filter element and maintains the system's sealing and filtration efficiency. The contact surface between the slot and the filter element is the area with the most frequent relative movement (especially under vibration). Due to design defects, the contact surface between the slot and the filter element shell often causes severe wear problems due to friction. The consequences are filter element positioning failure, sealing ring bias leakage, and even filter element structural damage, which greatly reduces the filter's service life and reliability. Therefore, it is necessary to improve the filter element anti-displacement positioning slot to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a filter element anti-displacement positioning slot to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a filter element anti-displacement positioning slot, comprising a filter housing and a filter element body, wherein a positioning seat is fixedly installed inside the filter housing, a silicone shock-absorbing pad is fixedly installed on the bottom inner side of the positioning seat, a positioning insert is fixedly installed on the bottom of the filter element body, a fixing ring is fixedly installed on the outside of the filter element body, a first sealing ring is fixedly installed on the bottom of the fixing ring, and a liquid injection tube is fixedly installed on the outside of the filter housing.

[0006] Preferably, a valve is provided on the outside of the injection tube, and through holes are provided at corresponding positions of the filter housing, the positioning seat and the injection tube.

[0007] Preferably, the bottom of the first sealing ring abuts against the top of the positioning seat, the positioning block is inserted into the inside of the positioning seat, and the positioning block is set on the top of the silicone shock-absorbing pad. Three protrusions are fixedly installed on the outside of the positioning block.

[0008] Preferably, a gasket is inserted between the filter housing and the filter element body, a filter cover is fixedly installed on the top of the gasket, four positioning bolts are installed on the internal thread of the filter cover, a second sealing ring is fixedly installed on the bottom of the filter cover, an air inlet pipe is fixedly installed on the top of the filter cover, and an exhaust pipe is fixedly installed on the outer side of the filter housing away from the liquid injection pipe.

[0009] Preferably, the second sealing ring is disposed between the filter housing and the filter cover plate, and the interior of the second sealing ring has four insertion holes, and the positioning bolt is threaded through the insertion holes and installed inside the filter housing.

[0010] Preferably, the bottom of the filter cover plate abuts against the top of the filter element body.

[0011] Compared with the prior art, this utility model provides a filter element anti-displacement positioning slot, which has the following beneficial effects:

[0012] 1. The filter element anti-displacement positioning groove allows lubricating oil to enter the gap between the positioning block and the positioning seat through the injection pipe and through hole, forming a lubricating protective layer. This absorbs vibration energy, reduces friction between the positioning seat and the positioning block, and protects the device. At the same time, the gasket is relatively soft and is more prone to wear during friction, further protecting the filter housing and filter element body.

[0013] 2. Based on this, the present invention uses a silicone shock-absorbing pad at the bottom of the positioning block to absorb the vibration generated by the use of the filter element body, thereby protecting the filter element body and extending its service life.

[0014] 3. Based on this, the present invention has three protrusions fixed on the outside of the positioning block, which facilitates the quick positioning and installation of the filter body, while also increasing the contact points between the positioning seat and the positioning block, thereby dispersing pressure and reducing friction. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the present invention.

[0018] Figure 3This is an exploded structural diagram of the filter element body and its connected mechanisms of this utility model;

[0019] Figure 4 This is a schematic diagram of the positioning plug and its connected mechanism of the present invention;

[0020] Figure 5 This is a schematic diagram of the filter cover and its connected mechanism of the present invention.

[0021] In the diagram: 1. Filter housing; 2. Positioning seat; 3. Silicone shock-absorbing pad; 4. Filter element body; 5. Positioning insert; 6. Fixing ring; 7. First sealing ring; 8. Liquid injection pipe; 9. Gasket ring; 10. Filter cover plate; 11. Positioning bolt; 12. Second sealing ring; 13. Air inlet pipe; 14. Air outlet pipe. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] Example 1:

[0025] Please see Figure 1-4 This utility model provides a technical solution: a filter element anti-displacement positioning slot, including a filter housing 1 and a filter element body 4. A positioning seat 2 is fixedly installed inside the filter housing 1. A silicone shock-absorbing pad 3 is fixedly installed on the bottom inner side of the positioning seat 2. A positioning insert 5 is fixedly installed on the bottom of the filter element body 4. A fixing ring 6 is fixedly installed on the outside of the filter element body 4. A first sealing ring 7 is fixedly installed on the bottom of the fixing ring 6. An injection tube 8 is fixedly installed on the outside of the filter housing 1.

[0026] Furthermore, a valve is provided on the outside of the injection pipe 8, and through holes are provided at the corresponding positions of the filter housing 1, the positioning seat 2 and the injection pipe 8, so that lubricating oil enters the gap between the positioning block 5 and the positioning seat 2 through the injection pipe 8 and the through holes, forming a lubricating protective layer, absorbing vibration energy and thus protecting the contact surface.

[0027] Furthermore, the bottom of the first sealing ring 7 abuts against the top of the positioning seat 2, the positioning block 5 is inserted into the inside of the positioning seat 2, and the positioning block 5 is set on the top of the silicone shock-absorbing pad 3. The positioning block 5 has three protrusions fixedly installed on its outside, which facilitates the quick positioning and installation of the filter body 4, and also increases the contact points between the positioning seat 2 and the positioning block 5, thereby dispersing pressure and reducing friction.

[0028] Example 2:

[0029] Please see Figure 5 Furthermore, in conjunction with Embodiment 1, a gasket 9 is inserted between the filter housing 1 and the filter element body 4. A filter cover 10 is fixedly installed on the top of the gasket 9. Four positioning bolts 11 are installed on the internal threads of the filter cover 10. A second sealing ring 12 is fixedly installed on the bottom of the filter cover 10. An air inlet pipe 13 is fixedly installed on the top of the filter cover 10. An exhaust pipe 14 is fixedly installed on the outer side of the filter housing 1 away from the liquid injection pipe 8, so that the filtered air is discharged.

[0030] Furthermore, the second sealing ring 12 is disposed between the filter housing 1 and the filter cover plate 10. The second sealing ring 12 has four insertion holes inside, and the positioning bolt 11 passes through the insertion holes and is threaded inside the filter housing 1, so that the filter cover plate 10 and the filter housing 1 are installed firmly and have a strong sealing performance.

[0031] Furthermore, the bottom of the filter cover 10 abuts against the top of the filter element body 4, thereby installing the filter element body 4 inside the filter housing 1 for filtration.

[0032] In actual operation, when this device is used, the three protrusions on the outside of the positioning block 5 are aligned with the slots inside the positioning seat 2, and the filter body 4 is placed downwards so that the positioning block 5 is inserted into the inside of the positioning seat 2. Then, the gasket 9 is inserted between the filter housing 1 and the filter body 4. Then, the filter cover 10 is rotated so that the threaded hole inside the filter housing 1 aligns with the threaded hole inside the filter cover 10. Then, the filter cover 10 and the filter housing 1 are installed by the four positioning bolts 11. At the same time, the filter cover 10 descends, causing the second sealing ring 12 to be pressed between the filter housing 1 and the filter cover 10, thereby strengthening the sealing effect. When the filter cover 10 is installed, it will cause the filter body 4 to descend, so that the positioning block 5 is pressed against the top of the silicone shock-absorbing pad 3. The fixing ring 6 moves closer to the positioning seat 2, pressing the first sealing ring 7 between the fixing ring 6 and the positioning seat 2, thereby further strengthening the sealing effect and making the device more effective in filtration.

[0033] Furthermore, the bottom of the positioning block 5 is provided with a silicone shock-absorbing pad 3, which can absorb the vibration generated when the filter body 4 is used, absorb the vibration energy, thereby protecting the filter body 4 and extending its service life.

[0034] Furthermore, the positioning insert 5 has three protrusions on its exterior, which facilitates the quick positioning and installation of the filter element body 4, while also increasing the contact points between the positioning seat 2 and the positioning insert 5, thereby dispersing pressure and reducing friction.

[0035] Furthermore, the fixing ring 6 and the first sealing ring 7 are pressed together above the positioning seat 2, so that the positioning plug 5 and the inner wall of the positioning seat 2 are in a sealed space. At this time, the end of the injection pipe 8 away from the filter housing 1 is installed with the injection device, and the valve is opened so that the lubricating oil enters the gap between the positioning plug 5 and the positioning seat 2 through the injection pipe 8 and the through hole, forming a lubricating protective layer, further absorbing vibration energy and reducing the friction between the positioning seat 2 and the positioning plug 5.

[0036] Furthermore, the gasket 9 is made of nitrile rubber, which is relatively soft and wears out preferentially during friction, thus protecting the filter housing 1 and the filter element body 4. It is also low in cost and can be replaced after wear. When replacing, the worn part is removed and a new one is installed using a strong adhesive.

[0037] 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 filter cartridge anti-deviation positioning clamping groove, comprising a filter shell (1) and a cartridge body (4), characterized in that: A positioning seat (2) is fixedly installed inside the filter housing (1). A silicone shock-absorbing pad (3) is fixedly installed on the bottom inner side of the positioning seat (2). A positioning insert (5) is fixedly installed on the bottom of the filter element body (4). A fixing ring (6) is fixedly installed on the outside of the filter element body (4). A first sealing ring (7) is fixedly installed on the bottom of the fixing ring (6). An injection tube (8) is fixedly installed on the outside of the filter housing (1).

2. The filter cartridge anti-derailment positioning slot of claim 1, wherein: A valve is provided on the outside of the injection pipe (8), and through holes are provided at the corresponding positions of the filter housing (1), the positioning seat (2), and the injection pipe (8).

3. The filter cartridge anti-derailment positioning slot of claim 2, wherein: The bottom of the first sealing ring (7) abuts against the top of the positioning seat (2), the positioning block (5) is inserted into the inside of the positioning seat (2), and the positioning block (5) is set on the top of the silicone shock-absorbing pad (3). Three protrusions are fixedly installed on the outside of the positioning block (5).

4. The filter cartridge anti-derailment positioning slot of claim 1, wherein: A gasket (9) is inserted between the filter housing (1) and the filter element body (4). A filter cover plate (10) is fixedly installed on the top of the gasket (9). Four positioning bolts (11) are installed on the internal threads of the filter cover plate (10). A second sealing ring (12) is fixedly installed on the bottom of the filter cover plate (10). An air inlet pipe (13) is fixedly installed on the top of the filter cover plate (10). An exhaust pipe (14) is fixedly installed on the side of the filter housing (1) away from the liquid injection pipe (8).

5. The filter element anti-displacement positioning slot according to claim 4, characterized in that: The second sealing ring (12) is disposed between the filter housing (1) and the filter cover plate (10). The second sealing ring (12) has four insertion holes inside, and the positioning bolt (11) is threaded through the insertion holes and installed inside the filter housing (1).

6. The filter cartridge anti-derailment positioning slot of Claim 5, wherein: The bottom of the filter cover (10) abuts against the top of the filter element body (4).

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