Double-lip type dustproof ring

Abstract

According to the technical scheme, the double-lip type dustproof ring is characterized in that the double-lip type dustproof ring comprises a framework, a ring body, a first dustproof lip, a second dustproof lip, an auxiliary lip and a holding piece; the ring body is fixedly arranged on the inner side of the framework; the first dustproof lip, the second dustproof lip and the auxiliary lip are sequentially arranged on the inner side of the ring body from top to bottom. The framework, the ring body, the first dustproof lip, the second dustproof lip and the auxiliary lip are all of an annular structure. The first dustproof lip, the second dustproof lip and the ring body are matched to form a V-shaped groove for storing lubricating oil; the holding piece is arranged on the outer wall of the auxiliary lip in a sleeving manner; the whole structure is stable, installation is convenient, the first dustproof lip and the second dustproof lip are matched to form the V-shaped groove for containing lubricating grease, the lubricating effect between the shaft body and the dustproof ring can be effectively guaranteed, and the service life of the dustproof ring is prolonged; and meanwhile, the auxiliary lip is matched with the holding piece, so that the sealing effect between the shaft body and the dustproof ring can be effectively ensured, and the oil leakage condition is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dust-proof rings, and more specifically, to a double-lip dust-proof ring. Background Technique

[0002] The main function of the skeleton dust-proof ring is to remove dirt such as dust, sand, rainwater, and frost adhering to the outer surface of the reciprocating piston rod exposed outside the cylinder, and prevent external dust and rainwater from entering the internal sealing mechanism.

[0003] Most of the existing dust-proof rings are single-lip dust-proof rings. After being used for a certain period of time, lubricating oil often needs to be added to lubricate the shaft to avoid dry friction between the shaft and the dust-proof ring, thereby increasing the friction between the dust-proof ring and the shaft, resulting in abnormal noise and reducing the service life of the dust-proof ring. Moreover, oil leakage often occurs during the process of adding lubricating oil. For example, the utility model patent with the patent number: CN202327114 discloses such a skeleton dust-proof ring; for this reason, we propose a double-lip dust-proof ring. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide a double-lip dust-proof ring to solve the problems in the above background technology.

[0005] The above technical purpose of the present utility model is achieved through the following technical solutions: a double-lip dust-proof ring, comprising: a skeleton, a ring body, a first dust-proof lip, a second dust-proof lip, a secondary lip, and a clamping member; the ring body is fixedly arranged inside the skeleton; the first dust-proof lip, the second dust-proof lip, and the secondary lip are sequentially arranged from top to bottom inside the ring body; the skeleton, the ring body, the first dust-proof lip, the second dust-proof lip, and the secondary lip are all annular structures; the first dust-proof lip, the second dust-proof lip, and the ring body cooperate to form a V-shaped groove for storing lubricating oil; the clamping member is sleeved on the outer wall of the secondary lip.

[0006] Optionally, the skeleton includes: a skeleton horizontal side and a skeleton vertical side; the skeleton horizontal side and the skeleton vertical side are fixedly connected to form an L-shaped skeleton; the ring body is arranged inside the skeleton vertical side.

[0007] Optionally, the lip of the second dust-proof lip is horizontally flush with the skeleton horizontal side.

[0008] Optionally, the vertical distance between the lip of the first dust-proof lip and the horizontal side of the skeleton is 6 - 7.5 mm; a circular chamfer structure with a radius of 0.6 mm is arranged on the lip of the first dust-proof lip.

[0009] Optionally, the clamping member is a clamping spring; the clamping spring is sleeved on the outer wall of the secondary lip.

[0010] In summary, the utility model has the following beneficial effects: The overall structure is stable and easy to install. By using the cooperation of the first dust-proof lip and the second dust-proof lip to form a V-shaped structure for accommodating lubricating grease, the lubrication effect between the shaft body and the dust-proof ring can be effectively guaranteed, and the service life of the dust-proof ring can be extended. At the same time, by using the cooperation of the auxiliary lip and the clamping member, the sealing effect between the shaft body and the dust-proof ring can be effectively guaranteed, avoiding oil leakage. Brief Description of the Drawings

[0011] Figure 1 is the assembly drawing of the utility model;

[0012] Figure 2 is Figure 1 the cross-sectional view of

[0013] In the figure: 1. Skeleton; 11. Horizontal side of the skeleton; 12. Vertical side of the skeleton; 2. Ring body; 3. First dust-proof lip; 4. Second dust-proof lip; 5. Auxiliary lip; 6. Clamping member; 7. V-shaped groove; 8. Round chamfer structure. Detailed Embodiment

[0014] In order to make the objectives, features, and advantages of the utility model more obvious and understandable, the following provides a detailed description of the specific embodiments of the utility model with reference to the accompanying drawings. Several embodiments of the utility model are shown in the accompanying drawings. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0015] In the utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "coupling", "fixation", etc. 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0016] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but are in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature. Terms such as "vertical", "horizontal", "left", "right", "up", "down", and similar expressions are only for the purpose of illustration, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus cannot be construed as a limitation to the present utility model.

[0017] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0018] The present utility model provides a double-lip dust-proof ring, as Figure 1 shown, including: a skeleton 1, a ring body 2, a first dust-proof lip 3, a second dust-proof lip 4, a secondary lip 5, and a clamping member 6; the ring body 2 is fixedly arranged inside the skeleton 1; the first dust-proof lip 3, the second dust-proof lip 4, and the secondary lip 5 are sequentially arranged from top to bottom inside the ring body 2; the skeleton 1, the ring body 2, the first dust-proof lip 3, the second dust-proof lip 4, and the secondary lip 5 are all of annular structures; the first dust-proof lip 3, the second dust-proof lip 4, and the ring body 2 cooperate to form a V-shaped groove 7 for storing lubricating oil; the clamping member 6 is sleeved on the outer wall of the secondary lip 5.

[0019] In this embodiment, the double-lip dust-proof ring is mainly composed of: a skeleton 1, a ring body 2, a first dust-proof lip 3, a second dust-proof lip 4, a secondary lip 5, and a clamping member 6; wherein the first dust-proof lip 3 is a shaft dust-proof lip to prevent fine impurities such as soil and dust from reaching the position of the shaft body, avoiding affecting the normal operation of the shaft body. The second dust-proof lip is mainly an oil storage lip, which cooperates with the first dust-proof lip 3 to form a V-shaped accommodation cavity for accommodating lubricating grease, so as to lubricate the shaft body, prevent dry friction and abnormal noise, and extend the service life of the dust-proof ring; the secondary lip 5 is arranged below the second dust-proof lip 4, and a clamping member 6 is sleeved on its outer wall. The clamping member 6 presses the secondary lip 5 against the shaft body, which can play a sealing role and avoid leakage of lubricating grease; the overall structure is stable, the installation is convenient, the service life is long, and it has a good sealing effect.

[0020] Furthermore, the skeleton 1 includes: a skeleton horizontal side 11 and a skeleton vertical side 12; the skeleton horizontal side 11 and the skeleton vertical side 12 are fixedly connected to form an L-shaped skeleton 1; the ring body 2 is arranged inside the skeleton vertical side 12.

[0021] In this embodiment, the skeleton 1 is an L-shaped positioning skeleton 1 composed of a skeleton horizontal side 11 and a skeleton vertical side 12, which can effectively ensure the structural stability of the dust-proof ring.

[0022] Furthermore, the lip of the second dust-proof lip 4 is horizontally flush with the skeleton horizontal side 11.

[0023] Furthermore, the vertical distance from the lip of the first dust-proof lip 3 to the horizontal side skeleton 1 is 6 - 7.5 mm; a circular chamfer structure 8 with a radius of 0.6 mm is provided on the lip of the first dust-proof lip 3.

[0024] Furthermore, the clamping member 6 is a clamping spring; the clamping spring is sleeved on the outer wall of the auxiliary lip 5.

[0025] In this embodiment, the clamping member 6 is mainly composed of a clamping spring. In this embodiment, the number of clamping springs is 1. In other embodiments, it can be increased or decreased according to actual application situations; in other embodiments, an elastic rubber ring with the same function can also be used for replacement.

[0026] A double-lip dust-proof ring of the present utility model has a stable overall structure and is convenient to install. By using the cooperation of the first dust-proof lip 3 and the second dust-proof lip 4 to form a V-shaped structure for accommodating lubricating grease, it can effectively ensure the lubrication effect between the shaft body and the dust-proof ring and extend the service life of the dust-proof ring; at the same time, by using the cooperation of the auxiliary lip 5 and the clamping member 6, it can effectively ensure the sealing effect between the shaft body and the dust-proof ring and avoid oil leakage.

[0027] The above are only the preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions within the idea of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements should also be regarded as within the protection scope of the present utility model.

Claims

1. A double-lip dust-proof ring, characterized in that, Comprising: A skeleton, a ring body, a first dust-proof lip, a second dust-proof lip, a secondary lip, and a clamping member; the ring body is fixedly arranged inside the skeleton; The first dust-proof lip, the second dust-proof lip, and the secondary lip are sequentially arranged from top to bottom inside the ring body; the skeleton, the ring body, the first dust-proof lip, the second dust-proof lip, and the secondary lip are all annular structures; the first dust-proof lip, the second dust-proof lip, and the ring body cooperate to form a V-shaped groove for storing lubricating oil; The clamping member is sleeved on the outer wall of the secondary lip; The skeleton comprises: a skeleton horizontal side and a skeleton vertical side; the skeleton horizontal side and the skeleton vertical side are fixedly connected to form an L-shaped skeleton; the ring body is arranged inside the skeleton vertical side; The lip of the second dust-proof lip is horizontally flush with the skeleton horizontal side; The vertical distance from the lip of the first dust-proof lip to the horizontal side of the skeleton is 6 - 7.5 mm; a circular chamfer structure with a radius of 0.6 mm is arranged on the lip of the first dust-proof lip; The clamping member is a clamping spring; the clamping spring is sleeved on the outer wall of the secondary lip.

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