Sealing structure of automobile filter

Abstract

The utility model relates to the technical field of engine oil filters, and discloses an automobile filter sealing structure which comprises a filter body, a sealing sleeve and a rubber ring and further comprises a plurality of extrusion assemblies, a pushing assembly and a locking assembly, the filter body is connected with the sealing sleeve in a sealed mode, and the rubber ring is arranged in the sealing sleeve. A plurality of extrusion assemblies are circumferentially arranged in the sealing sleeve at equal intervals, and the extrusion assemblies are in contact with the rubber ring; by means of the squeezing assembly, the pushing assembly and the locking assembly, after the filter body is tightened, the first ratchet ring is rotated anticlockwise, the first ratchet ring rotates to drive the fixing block to slide towards the sealing sleeve through the arc-shaped groove, and the fixing block slides to drive the sliding rod and the arc-shaped plate to slide towards the rubber ring; at the moment, the arc-shaped plates extrude the rubber ring inwards at the same time, the rubber ring can extend upwards, wrinkles generated when the filter body is tightened are filled and leveled up, and then the sealing performance between the filter body and the engine is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil filter technology, and more specifically to the sealing structure of automotive filters. Background Technology

[0002] The function of an oil filter is to filter impurities and particles from engine oil, protecting internal engine parts from wear. During installation, the oil filter achieves a seal primarily through a rubber ring embedded in its top, ensuring a tight fit with the engine. Since the oil filter connects to the oil outlet via threads, the rubber ring is compressed as the filter tightens. However, this compression also creates rotational friction between the rubber ring and the oil outlet. When the filter is almost fully tightened, the friction between the rubber ring and the outlet becomes too great to continue rotating. Continuing to rotate the filter at this point can cause wrinkles in the rubber ring, preventing a tight seal and leading to oil leakage. Therefore, a new sealing structure for automotive filters is urgently needed to address these issues. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sealing structure for an automotive filter to solve the problems existing in the background art.

[0004] This utility model provides the following technical solution: a sealing structure for an automotive filter, including a filter body, a sealing sleeve, a rubber ring, and several extrusion components, a pushing component, and a locking component. The filter body and the sealing sleeve are sealed together. The rubber ring is disposed inside the sealing sleeve. Several extrusion components are circumferentially and equidistantly disposed inside the sealing sleeve. The extrusion components are in contact with the rubber ring. The pushing component is rotatably mounted on the outer circumferential wall of the sealing sleeve and is connected to the extrusion components. The locking component is fixedly mounted on the outer circumferential wall of the filter body and is connected to the pushing component.

[0005] The extrusion assembly includes an arc-shaped plate disposed inside the sealing sleeve and in contact with a rubber ring; the pushing assembly includes a first ratchet ring rotatably mounted on the outer circumferential wall of the sealing sleeve; and the locking assembly includes a second ratchet ring slidably mounted on the outer circumferential wall of the filter body.

[0006] Furthermore, the extrusion assembly also includes a slide rod and a fixing block. The slide rod is slidably inserted into the sealing sleeve and is fixedly connected to the arc-shaped plate. The fixing block is fixedly installed at the bottom of the slide rod.

[0007] Furthermore, the top circumference of the first ratchet ring is provided with several arc-shaped grooves at equal intervals, and the fixing block is slidably installed in the arc-shaped grooves.

[0008] Furthermore, the first ratchet ring is adapted to the second ratchet ring.

[0009] Furthermore, the locking assembly also includes a fixing ring and several springs. The fixing ring is fixedly installed on the outer circumference of the filter body, and the several springs are fixedly installed on the top of the fixing ring at equal intervals around the circumference. The bottom circumference of the second ratchet ring is provided with several circular grooves at equal intervals, and the springs are fixedly connected to the top inner wall of the circular grooves.

[0010] Furthermore, the locking assembly also includes several limiting plates, which are circumferentially fixedly installed at the bottom of the second ratchet ring. The outer circumferential wall of the fixing ring is provided with several limiting grooves at equal intervals, and the limiting plates are slidably installed in the limiting grooves.

[0011] Furthermore, the pushing component also includes several anti-slip strips, which are circumferentially and equidistantly arranged on the outer circumferential wall of the first ratchet ring. The anti-slip strips are made of rubber.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, after the filter body is tightened by the compression component, the pushing component, and the locking component, the first ratchet ring is rotated counterclockwise. The rotation of the first ratchet ring can drive the fixing block to slide towards the sealing sleeve through the arc groove. The sliding of the fixing block can drive the sliding rod and the arc plate to slide towards the rubber ring. At this time, several arc plates simultaneously squeeze the rubber ring inward, which can cause the rubber ring to extend upward and fill the wrinkles caused by tightening the filter body, thereby increasing the sealing between the filter body and the engine.

[0014] After the first ratchet ring is rotated to the desired position, the second ratchet ring can engage with the first ratchet ring under the push of the spring, preventing the first ratchet ring from rotating clockwise, thereby locking the position of the arc plate and improving the stability of its compression rubber ring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rubber ring structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the extrusion assembly structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the driving component of this utility model;

[0019] Figure 5 This is a schematic diagram of the locking component structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the limiting plate structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Filter body; 2. Sealing sleeve; 3. Rubber ring; 4. Extrusion assembly; 401. Arc plate; 402. Slide rod; 403. Fixing block; 5. Pushing assembly; 501. First ratchet ring; 502. Arc groove; 503. Anti-slip strip; 6. Locking assembly; 601. Second ratchet ring; 602. Fixing ring; 603. Spring; 604. Circular groove; 605. Limiting plate; 606. Limiting groove. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0023] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 ~Appendix Figure 6 The present invention will be further described below.

[0024] The automotive filter sealing structure includes a filter body 1, a sealing sleeve 2, a rubber ring 3, and also includes several extrusion components 4, a pushing component 5, and a locking component 6. The filter body 1 and the sealing sleeve 2 are sealed together. The rubber ring 3 is disposed inside the sealing sleeve 2. Several extrusion components 4 are circumferentially and equidistantly disposed inside the sealing sleeve 2. The extrusion components 4 are in contact with the rubber ring 3. The pushing component 5 is rotatably mounted on the outer circumferential wall of the sealing sleeve 2 and is connected to the extrusion components 4. The locking component 6 is fixedly mounted on the outer circumferential wall of the filter body 1 and is connected to the pushing component 5.

[0025] The extrusion assembly 4 includes an arc-shaped plate 401, which is disposed inside the sealing sleeve 2 and contacts the rubber ring 3. The pushing assembly 5 includes a first ratchet ring 501, which is rotatably mounted on the outer circumferential wall of the sealing sleeve 2. The locking assembly 6 includes a second ratchet ring 601, which is slidably mounted on the outer circumferential wall of the filter body 1.

[0026] Specifically, the extrusion assembly 4 also includes a slide rod 402 and a fixing block 403. The slide rod 402 is slidably inserted into the sealing sleeve 2 and is fixedly connected to the arc plate 401. The fixing block 403 is fixedly installed at the bottom of the slide rod 402.

[0027] Specifically, the top circumference of the first ratchet ring 501 is provided with several arc-shaped grooves 502 at equal intervals, and the fixing block 403 is slidably installed in the arc-shaped grooves 502.

[0028] In this embodiment, rotating the first ratchet ring 501 counterclockwise causes the fixing block 403 to slide toward the sealing sleeve 2 via the arc groove 502. The sliding of the fixing block 403 causes the slide rod 402 and the arc plate 401 to slide toward the rubber ring 3.

[0029] Specifically, the first ratchet ring 501 is adapted to the second ratchet ring 601.

[0030] Specifically, the locking assembly 6 also includes a retaining ring 602 and several springs 603. The retaining ring 602 is fixedly installed on the outer circumference of the filter body 1, and several springs 603 are fixedly installed at equal intervals on the top of the retaining ring 602. Several circular grooves 604 are equally spaced on the bottom circumference of the second ratchet ring 601, and the springs 603 are fixedly connected to the inner top wall of the circular grooves 604.

[0031] Specifically, the locking assembly 6 also includes several limiting plates 605, which are circumferentially fixedly installed at the bottom of the second ratchet ring 601. The outer circumferential wall of the fixing ring 602 is provided with several limiting grooves 606 at equal intervals, and the limiting plates 605 are slidably installed in the limiting grooves 606.

[0032] In this embodiment, when the first ratchet ring 501 rotates counterclockwise, its ratchet teeth will repeatedly mesh with the ratchet teeth of the second ratchet ring 601 and push the second ratchet ring 601 to slide up and down repeatedly. The limiting plate 605 and the limiting groove 606 can increase the stability of the second ratchet ring 601 when it slides up and down.

[0033] Specifically, the push component 5 also includes several anti-slip strips 503, which are circumferentially and equidistantly arranged on the outer circumferential wall of the first ratchet ring 501. The anti-slip strips 503 are made of rubber.

[0034] In this embodiment, the anti-slip strip 503 increases the friction between the first ratchet ring 501 and the user's hand when the user rotates the first ratchet ring 501, making it easier for the user to rotate the first ratchet ring 501.

[0035] Working principle: When in use, after tightening the filter body 1, rotate the first ratchet ring 501 counterclockwise. The rotation of the first ratchet ring 501 can drive the fixing block 403 to slide towards the sealing sleeve 2 through the arc groove 502. The sliding of the fixing block 403 can drive the slide rod 402 and the arc plate 401 to slide towards the rubber ring 3. At this time, several arc plates 401 simultaneously squeeze the rubber ring 3 inward, which can make the rubber ring 3 extend upward, fill the wrinkles caused by tightening the filter body 1, and thus increase the sealing between the filter body 1 and the engine.

[0036] After the first ratchet ring 501 is rotated to the desired position, the second ratchet ring 601 can engage with the first ratchet ring 501 under the push of the spring 603, preventing the first ratchet ring 501 from rotating clockwise, thereby locking the position of the arc plate 401 and improving the stability of its compression of the rubber ring 3.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its scope of protection shall still fall within the protection scope of this utility model.

Claims

1. A sealing structure for an automotive filter, comprising a filter body (1), a sealing sleeve (2), and a rubber ring (3), characterized in that: It also includes several extrusion components (4), push components (5), and locking components (6). The filter body (1) and the sealing sleeve (2) are sealed together. The rubber ring (3) is set inside the sealing sleeve (2). Several extrusion components (4) are circumferentially equidistantly arranged inside the sealing sleeve (2). The extrusion components (4) are in contact with the rubber ring (3). The push components (5) are rotatably installed on the outer circumferential wall of the sealing sleeve (2). The push components (5) are connected to the extrusion components (4). The locking components (6) are fixedly installed on the outer circumferential wall of the filter body (1). The locking components (6) are connected to the push components (5). The squeezing assembly (4) includes an arc plate (401) which is disposed inside the sealing sleeve (2) and is in contact with the rubber ring (3). The pushing assembly (5) includes a first ratchet ring (501) which is rotatably mounted on the outer circumferential wall of the sealing sleeve (2). The locking assembly (6) includes a second ratchet ring (601) which is slidably mounted on the outer circumferential wall of the filter body (1).

2. The automotive filter sealing structure according to claim 1, characterized in that: The extrusion assembly (4) also includes a slide rod (402) and a fixing block (403). The slide rod (402) is slidably inserted into the sealing sleeve (2) and is fixedly connected to the arc plate (401). The fixing block (403) is fixedly installed at the bottom of the slide rod (402).

3. The automotive filter sealing structure according to any one of claims 1-2, characterized in that: The top circumference of the first ratchet ring (501) is provided with several arc-shaped grooves (502) at equal intervals, and the fixing block (403) is slidably installed in the arc-shaped grooves (502).

4. The automotive filter sealing structure according to claim 1, characterized in that: The first ratchet ring (501) is adapted to the second ratchet ring (601).

5. The automotive filter sealing structure according to claim 1, characterized in that: The locking assembly (6) also includes a fixing ring (602) and several springs (603). The fixing ring (602) is fixedly installed on the outer circumference of the filter body (1). Several springs (603) are fixedly installed on the top of the fixing ring (602) at equal intervals around the circumference. Several circular grooves (604) are opened at equal intervals around the bottom circumference of the second ratchet ring (601). The springs (603) are fixedly connected to the inner top wall of the circular grooves (604).

6. The automotive filter sealing structure according to claim 5, characterized in that: The locking assembly (6) also includes several limiting plates (605), which are fixedly installed at equal intervals around the bottom of the second ratchet ring (601). The outer circumference of the fixing ring (602) is provided with several limiting grooves (606) at equal intervals around the circumference, and the limiting plates (605) are slidably installed in the limiting grooves (606).

7. The automotive filter sealing structure according to claim 1, characterized in that: The pushing component (5) also includes several anti-slip strips (503), which are circumferentially and equidistantly arranged on the outer circumferential wall of the first ratchet ring (501). The anti-slip strips (503) are made of rubber.

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