Rubber oil plug with good sealing performance

Abstract

The utility model discloses a rubber oil plug with good sealing performance, relates to the field of rubber oil plugs, and solves the problems that the contact area between a smooth outer wall of an existing device and an oil port is smooth, the interaction force is limited, and the sealing effect needs to be improved. An upper group of outer supporting grooves and a lower group of outer supporting grooves are formed in the inner side of the sealing cylinder, outer convex parts located on the outer sides of the two groups of outer supporting grooves are arranged on the outer wall of the sealing cylinder, and outer supporting assemblies are arranged in the two groups of outer supporting grooves in a sleeved mode; the outer supporting assembly comprises a main supporting sleeve and an auxiliary supporting sleeve which are movably sleeved; according to the rubber oil plug with the good sealing performance, through the arrangement of the outer supporting groove in the inner side of the sealing cylinder and the outer supporting assembly in the sealing cylinder, the outer supporting assembly can be used for supporting the outer supporting groove and the outer protruding part from the inner side, when the rubber oil plug is clamped to the inner side of an oil port, the outer side of the outer protruding part is pressed to move inwards, the main supporting sleeve and the auxiliary supporting sleeve are forced to be mutually sleeved and shrunk, and meanwhile acting force is exerted outwards; and the firmness degree of the sealing cylinder clamped in the oil port is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber oil plugs, in particular to a rubber oil plug with good sealing performance. Background Art

[0002] The main function of the rubber oil plug is to seal and plug the oil port of the oil cylinder and oil tank. To ensure the sealing effect, the oil plug and the oil port are mostly installed with interference fit;

[0003] After searching, the patent application with the number of 201721703272.3 discloses a reinforced rubber oil plug, which includes an oil plug body and a copper skeleton. An oil filling through hole is provided on the central axis of the oil plug body, the upper part of the oil plug body has a main sealing lip, the middle and lower part of the oil plug body has a protruding sealing auxiliary lip, and the copper skeleton is arranged in the middle part of the oil plug body; the copper skeleton is a copper pipe section, the inner wall and the upper and lower end faces of the copper skeleton are vulcanized and bonded to the oil plug body, and the outer wall of the copper skeleton is exposed; the outer diameter of the main sealing lip gradually decreases from top to bottom and is larger than the outer diameter of the copper skeleton and the sealing auxiliary lip; a guide is formed between the maximum outer diameter of the sealing auxiliary lip and the outer edge of the bottom of the oil plug body. The rubber oil plug of the utility model has high structural strength, is firmly inserted, is not easy to be damaged, and has a good double sealing effect;

[0004] The above application document achieves efficient sealing through two sets of upper and lower sealing lips, while the contact with the oil port is still through traditional rubber, the fitting effect is limited, and the sealing effect needs to be improved.

[0005] Therefore, we propose a rubber oil plug with good sealing performance. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a rubber oil plug with good sealing performance, which solves the problem that the contact area between the smooth outer wall of the prior device and the oil port is smooth and the interaction force is limited, so the sealing effect needs to be improved.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a rubber oil plug with good sealing performance, including a sealing cylinder and an upper sealing lip and a lower sealing lip on the top and bottom sides thereof;

[0008] The inner side of the sealing cylinder is provided with two sets of upper and lower external support grooves, the outer wall of the sealing cylinder is provided with an outer convex portion located outside the two sets of external support grooves, and the two sets of external support grooves are both equipped with external support components;

[0009] The outer support assembly includes a main support sleeve and a secondary support sleeve of a movable set;

[0010] The main support sleeve comprises an integrally formed first support ring and a first outwardly extending portion, and a through rib groove is provided in the first support ring;

[0011] The secondary support sleeve comprises an integrally formed second support ring and a second outwardly extending portion, the outer end of the second support ring is fixedly connected to an elastic rib column, and the elastic rib column is movably sleeved in the rib groove.

[0012] Preferably, the outer support groove is composed of an inner sleeve groove and an outer sleeve groove, the inner sleeve groove is a circular ring groove, and the outer sleeve groove is a semicircular ring groove;

[0013] Among them, the setting of the shape of the external support groove can increase the contact area between it and the external support component during clamping, thereby increasing the outward support effect and stability.

[0014] Preferably, the first support ring and the first outwardly-flashed portion in the main support sleeve and the auxiliary support sleeve are adapted to the shape specifications of the second support ring and the second outwardly-flashed portion and the inner sleeve groove and the outer sleeve groove;

[0015] The shapes of the main support sleeve and the auxiliary support sleeve can ensure the fitting effect between them and the outer support groove.

[0016] Preferably, the elastic ribs are arc-shaped ribs, and two groups of elastic ribs are clamped on the inner sides of the two ends of the rib groove from both ends;

[0017] Among them, the setting of the elastic rib column can be clamped in the rib groove, and an external supporting force is applied from the inside to the outside to ensure its clamping effect.

[0018] Preferably, the secondary support sleeve further includes a spring column, and both ends of the spring column are fixedly connected to the outer end surfaces of the two groups of elastic rib columns;

[0019] Among them, the setting of the spring column can apply supporting force to the elastic rib column from both ends, further increasing the external supporting force and ensuring the clamping effect.

[0020] The utility model provides a rubber oil plug with good sealing performance. It has the following beneficial effects:

[0021] The rubber oil plug with good sealing performance can support the outer support groove and the outer convex part from the inside by using the outer support component through the arrangement of the outer support groove on the inner side of the sealing tube and the outer support component therein. Under normal circumstances, the outer convex part is in an outward convex state, and when it is clamped on the inner side of the oil port, the outer side of the outer convex part is pressed and moves inward, forcing the main support sleeve and the auxiliary support sleeve to fit each other and shrink, while applying force outward and supporting the outer support groove and the outer convex part outward from the inside, thereby ensuring the firmness of the sealing tube clamped in the oil port, solving the problem that the contact area between the smooth outer wall of the existing device and the oil port is smooth and the interaction force is limited, and the sealing effect needs to be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the inner side of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the external support assembly of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the main support sleeve of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the auxiliary support sleeve of the utility model.

[0027] In the figure: 1. Sealing cylinder; 2. Upper sealing lip; 3. Lower sealing lip; 4. External support assembly; 41. Main support sleeve; 411. First support ring; 412. First external expansion portion; 413. Rib groove; 42. Secondary support sleeve; 421. Second support ring; 422. Second external expansion portion; 423. Elastic rib column; 424. Spring column; 5. External support groove; 51. Inner sleeve groove; 52. Outer sleeve groove; 6. External convex portion. DETAILED DESCRIPTION

[0028] 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 without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5 The embodiment of the utility model provides a technical solution: a rubber oil plug with good sealing performance, comprising a sealing cylinder 1 and an upper sealing lip 2 and a lower sealing lip 3 on the top and bottom sides thereof, the inner side of the sealing cylinder 1 is provided with two groups of upper and lower external support grooves 5, the outer wall of the sealing cylinder 1 is provided with an outer protrusion 6 located outside the two groups of external support grooves 5, and the two groups of external support grooves 5 are both sleeved with an external support assembly 4; the external support assembly 4 comprises a main support sleeve 41 and a secondary support sleeve 42 that are movably sleeved; the main support sleeve 41 comprises an integrally formed first support ring 411 and a first externally expanded portion 412, and a through rib groove 413 is formed in the first support ring 411; the secondary support sleeve 42 comprises an integrally formed second support ring 421 and a second externally expanded portion 422, the outer end of the second support ring 421 is fixedly connected with an elastic rib column 423, and the elastic rib column 423 is movably sleeved in the rib groove 413;

[0030] Among them, the rubber oil plug with good sealing performance can use the outer support component 4 to support the outer support groove 5 and the outer convex part 6 from the inside through the setting of the outer support groove 5 on the inner side of the sealing tube 1 and the outer support component 4 therein. Under normal circumstances, the outer convex part 6 is in a convex state, and when it is clamped on the inner side of the oil port, the outer side of the outer convex part 6 is pressed to move inward, forcing the main support sleeve 41 and the auxiliary support sleeve 42 to fit each other and shrink, while applying a force outward and supporting the outer support groove 5 and the outer convex part 6 outward from the inside, ensuring the firmness of the sealing tube 1 clamped in the oil port, solving the problem that the contact area between the smooth outer wall of the existing device and the oil port is smooth and the interaction force is limited, and the sealing effect needs to be improved.

[0031] Embodiment 2:

[0032] The outer support groove 5 is composed of an inner sleeve groove 51 and an outer sleeve groove 52, the inner sleeve groove 51 is a circular ring groove, and the outer sleeve groove 52 is a semicircular ring groove; wherein, the shape of the outer support groove 5 can increase the contact area between it and the outer support component 4 when clamped, thereby increasing the outward support effect and stability.

[0033] The first support ring 411 and the first outwardly extending portion 412 and the second support ring 421 and the second outwardly extending portion 422 in the main support sleeve 41 and the auxiliary support sleeve 42 are adapted to the shape specifications of the inner sleeve groove 51 and the outer sleeve groove 52; wherein, the shape setting of the main support sleeve 41 and the auxiliary support sleeve 42 can ensure the sleeve effect between them and the outer support groove 5.

[0034] The elastic rib column 423 is an arc-shaped rib column, and two groups of elastic rib columns 423 are clamped on the inner sides of the two ends of the rib groove 413 from both ends; wherein, the setting of the elastic rib column 423 can be clamped in the rib groove 413, applying an external supporting force from the inside to the outside to ensure its clamping effect.

[0035] The secondary support sleeve 42 also includes a spring column 424, and both ends of the spring column 424 are fixedly connected to the outer end surfaces of the two groups of elastic rib columns 423; wherein, the setting of the spring column 424 can apply supporting force to the elastic rib columns 423 from both ends, further increasing the external supporting force and ensuring the clamping effect.

[0036] The working principle and use process of the utility model are as follows: when the device is needed to work, the two groups of external support components 4 are clamped in the two groups of external support grooves 5 on the inner side of the sealing tube 1. When it is needed to be clamped on the inner side of the oil port, the outer protrusion 6 is restricted by the oil port space and deformed inwardly. At the same time, the outer support groove 5 is simultaneously compressed and deformed inwardly, squeezing the main support sleeve 41 and the auxiliary support sleeve 42 in the external support component 4, so that the elastic rib column 423 mounted therebetween is deformed and contracted, and at the same time, a force is applied outwardly to support the outer protrusion 6 from the inside, thereby ensuring its clamping effect and the sealing between it and the oil port.

[0037] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rubber oil plug with good sealing performance, comprising a sealing cylinder (1) and an upper sealing lip (2) and a lower sealing lip (3) on the top and bottom sides thereof; Features: The inner side of the sealing cylinder (1) is provided with two groups of upper and lower external support grooves (5); the outer wall of the sealing cylinder (1) is provided with an outer protrusion (6) located outside the two groups of external support grooves (5); and the two groups of external support grooves (5) are both equipped with external support components (4); The outer support assembly (4) comprises a main support sleeve (41) and a secondary support sleeve (42) of a movable set; The main support sleeve (41) comprises an integrally formed first support ring (411) and a first outwardly extending portion (412), and a through rib groove (413) is provided in the first support ring (411); The secondary support sleeve (42) comprises an integrally formed second support ring (421) and a second outwardly extending portion (422); the outer end of the second support ring (421) is fixedly connected to an elastic rib column (423); and the elastic rib column (423) is movably sleeved in the rib groove (413).

2. A rubber oil plug with good sealing performance according to claim 1, characterized in that: The outer support groove (5) is composed of an inner sleeve groove (51) and an outer sleeve groove (52); the inner sleeve groove (51) is a circular annular groove, and the outer sleeve groove (52) is a semicircular annular groove.

3. A rubber oil plug with good sealing performance according to claim 2, characterized in that: The first support ring (411) and the first outwardly expanded portion (412) and the second support ring (421) and the second outwardly expanded portion (422) in the main support sleeve (41) and the auxiliary support sleeve (42) are compatible with the shapes and specifications of the inner sleeve groove (51) and the outer sleeve groove (52).

4. A rubber oil plug with good sealing performance according to claim 1, characterized in that: The elastic rib columns (423) are arc-shaped rib columns, and two groups of elastic rib columns (423) are clamped on the inner sides of the two ends of the rib groove (413) from both ends.

5. A rubber oil plug with good sealing performance according to claim 4, characterized in that: The secondary support sleeve (42) also includes a spring column (424), and both ends of the spring column (424) are fixedly connected to the outer end surfaces of the two groups of elastic rib columns (423).

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