CN217814959U

CN217814959U - Lip-shaped sealing ring

Info

Publication number: CN217814959U
Application number: CN202222227627.3U
Authority: CN
Inventors: 黄建平
Original assignee: Shanghai Huamao Rubber And Plastic Co ltd
Current assignee: Shanghai Huamao Rubber And Plastic Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-11-15
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a lip seal relates to sealing washer technical field. The utility model provides a lip seal, lip seal cover is in the rotation axis outside, including the seal ring body, skeleton and spring, its characterized in that: the sealing ring body wraps the outside of the framework, the sealing ring body is sleeved on the outer side of the rotating shaft, an inner hub is arranged between the sealing ring body and the rotating shaft, a groove is formed in the inner side of the sealing ring body, and the spring is located in the groove. Form a plurality of cavities through setting up a plurality of second owner lips and make between interior hub and the rotation axis, carry out the multichannel to fluid and block to improve sealed effect, detain through setting up the joint and make can joint each other between a plurality of seal ring bodies with the joint groove, make this a plurality of seal ring bodies can make up the use, in order to be applicable to longer rotation axis. The utility model discloses a series of structures make this device have sealed effectual and can make up characteristics such as use.

Description

Lip-shaped sealing ring

Technical Field

The utility model relates to a sealing washer technical field specifically is a lip seal.

Background

The sealing ring can prevent fluid or solid particles from leaking from adjacent joint surfaces and prevent external impurities such as dust, moisture and the like from invading parts in the machine equipment, the lip-shaped sealing ring is one kind of sealing ring and is realized by enabling the lip edge to be tightly attached to a sealing surface through the deformation of the lip edge under the action of hydraulic pressure, most of the existing lip-shaped sealing rings are simple in structure, poor in sealing effect and incapable of meeting the sealing requirement of the equipment, and the existing lip-shaped sealing ring cannot be well combined to adapt to a longer rotating shaft when in use.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming defects such as prior art's sealed effect is poor, can not make up, provide a lip seal circle. The lip-shaped sealing ring has the characteristics of good sealing effect, combination and the like.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lip seal, lip seal cover is in the rotation axis outside, including the seal ring body, skeleton and spring, its characterized in that: the sealing ring body is wrapped outside the framework, the sealing ring body is sleeved outside the rotating shaft, an inner hub is arranged between the sealing ring body and the rotating shaft, a groove is formed in the inner side of the sealing ring body, and the spring is located in the groove;

one side that the seal ring body is close to interior hub and one side that interior hub is close to the rotation axis are equipped with first main lip and second main lip respectively, first main lip and interior hub fixed connection.

Preferably, the second main lip is provided with a plurality of which are linearly arranged from top to bottom.

Preferably, the bottom of the sealing ring body is fixedly connected with a fixing block, the inner wall of the sealing ring body is fixedly connected with a clamping buckle, and a clamping groove matched with the clamping buckle is formed in the outer side wall of the fixing block.

Preferably, the bottom of the sealing ring body and the bottom of the inner hub are both provided with dust-proof lips.

Compared with the prior art, the beneficial effects of the utility model are that: form a plurality of cavities through setting up a plurality of second owner lips and make between interior hub and the rotation axis, carry out the multichannel to fluid and block to improve sealed effect, detain through setting up the joint and make can joint each other between a plurality of seal ring bodies with the joint groove, make this a plurality of seal ring bodies can make up the use, in order to be applicable to longer rotation axis.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Reference numbers in the figures: 1. a framework; 2. a clamping buckle; 3. a seal ring body; 4. a fixed block; 5. a spring; 6. a second major lip; 7. a first major lip; 8. an inner hub; 9. a dust lip; 10. a rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a lip-shaped sealing ring is sleeved on the outer side of a rotating shaft 10 and comprises a sealing ring body 3, a framework 1 and a spring 5, wherein the sealing ring body 3 is wrapped outside the framework 1, the sealing ring body 3 is sleeved on the outer side of the rotating shaft 10, an inner hub 8 is arranged between the sealing ring body 3 and the rotating shaft 10, a groove is formed in the inner side of the sealing ring body 3, and the spring 5 is positioned in the groove;

a first main lip 7 and a second main lip 6 are respectively arranged on one side of the sealing ring body 3 close to the inner hub 8 and one side of the inner hub 8 close to the rotating shaft 10, and the first main lip 7 is fixedly connected with the inner hub 8;

the number of the second main lips 6 is multiple, and the second main lips 6 are linearly arranged from top to bottom to perform multi-stage sealing, so that the sealing effect is improved;

the bottom of the sealing ring body 3 is fixedly connected with a fixing block 4, the inner wall of the sealing ring body 3 is fixedly connected with a clamping buckle 2, and the outer side wall of the fixing block 4 is provided with a clamping groove matched with the clamping buckle 2, so that the sealing ring can be conveniently combined and used;

the bottom of the sealing ring body 3 and the bottom of the inner hub 8 are both provided with dust lips 9, so that dust is prevented from entering the sealing ring.

The working principle is as follows: during the use, fluid exerts pressure to first main lip 7, and with pressure transmission to interior hub 8 on, make second main lip 6 and rotation axis 10 closely laminate, form a plurality of cavities between a plurality of second main lip 6 and the rotation axis 10 simultaneously, carry out the multichannel to fluid and block, improve the sealed effect of sealing washer, when rotation axis 10 is longer, through pegging graft the inboard at the seal ring body 3 with fixed block 4, and the joint is detained 2 and is in the same place with the joint groove joint in the time, with this a plurality of seal ring bodies 3 of connecting, make a plurality of seal ring bodies 3 assemble together, in order to adapt to and longer rotation axis 10, avoid the dust to get into in the sealing washer through two dust lips 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lip seal, lip seal cover is in rotation axis (10) outside, including seal body (3), skeleton (1) and spring (5), its characterized in that: the sealing ring body (3) is wrapped outside the framework (1), the sealing ring body (3) is sleeved on the outer side of the rotating shaft (10), an inner hub (8) is arranged between the sealing ring body (3) and the rotating shaft (10), a groove is formed in the inner side of the sealing ring body (3), and the spring (5) is located in the groove;

one side that the seal ring body (3) is close to interior hub (8) and one side that interior hub (8) are close to rotation axis (10) are equipped with first main lip (7) and second main lip (6) respectively, first main lip (7) and interior hub (8) fixed connection.

2. The lip seal of claim 1, wherein: the second main lip (6) is provided with a plurality of main lips, and the second main lip (6) is linearly arranged from top to bottom.

3. The lip seal of claim 1, wherein: the sealing ring is characterized in that a fixing block (4) is fixedly connected to the bottom of the sealing ring body (3), a clamping buckle (2) is fixedly connected to the inner wall of the sealing ring body (3), and a clamping groove matched with the clamping buckle (2) is formed in the outer side wall of the fixing block (4).

4. The lip seal of claim 1, wherein: and dust-proof lips (9) are arranged at the bottoms of the sealing ring body (3) and the inner hub (8).