CN111878584A

CN111878584A - PTFE lip and rubber material combined type sealing main lip

Info

Publication number: CN111878584A
Application number: CN202010752924.2A
Authority: CN
Inventors: 徐益淼
Original assignee: Anhui Riliang Fluoroplastic Sealing Element Co ltd
Current assignee: Anhui Riliang Fluoroplastic Sealing Element Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2020-11-03

Abstract

The invention discloses a PTFE lip and rubber material combined seal main lip, which comprises a lip body, wherein a plurality of corners are fixedly connected on the side surface of the lip body, mounting holes are arranged in the corners, a first inner hole is arranged in the lip body, seal grooves are respectively arranged on the upper surface and the lower surface of the lip body and on the outer ring of the first inner hole, a first rubber ring and a second rubber ring are inserted in the first inner hole of the lip body, the first rubber ring and the second rubber ring are inserted in the first inner hole of the lip body through a threaded ring and a threaded groove, a first outer ring and a second outer ring corresponding to the first rubber ring and the second rubber ring are respectively inserted in the two seal grooves, so that the seal effect after mutual combination can be improved, meanwhile, a liquid discharge groove arranged on the lip body can quickly discharge residual liquid, liquid permeation is avoided, the seal effect is indirectly improved, and in addition, the whole combined seal main lip can be quickly and accurately mounted at a corresponding position, certain disassembly and assembly efficiency is improved.

Description

PTFE lip and rubber material combined type sealing main lip

Technical Field

The invention relates to the technical field of PTFE lips, in particular to a PTFE lip and rubber material combined type main sealing lip.

Background

The PTFE lip is a sealing element capable of sealing oil, and is required to be installed on mechanical equipment to ensure that oil cannot leak, so that the requirement on the sealing performance of the PTFE lip is high.

However, the traditional method of using a single lip as a sealing element has poor sealing effect and still has the phenomenon of oil penetration, so that the lip and an element made of rubber materials can be combined to solve the problem of poor sealing.

Disclosure of Invention

The invention aims to provide a PTFE lip and rubber material combined type main sealing lip, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a PTFE lip and rubber material combined type seal main lip comprises a lip body, wherein a plurality of corners are fixedly connected to the side face of the lip body, mounting holes are formed in the corners, a first inner hole is formed in the lip body, seal grooves are formed in the upper surface and the lower surface of the lip body and are positioned on the outer ring of the first inner hole, a first rubber ring and a second rubber ring are inserted into the first inner hole of the lip body, a second inner hole is formed in the first rubber ring and the second rubber ring, a first slot and a second slot are respectively formed in one side of the first rubber ring and one side of the second rubber ring, a first outer ring, a first inner ring, a second outer ring and a second inner ring are respectively arranged on the two sides of the first slot and the second slot of the first rubber ring and the second rubber ring, a thread groove is formed in the first inner ring, and a thread ring is fixedly connected to the upper surface of the second inner ring, and the threaded ring and the threaded groove are matched with each other.

In a further embodiment, a plurality of insertion holes are formed in the lip body, and each insertion hole is formed between the sealing groove and the corner.

In a further embodiment, a liquid discharge groove is formed in the upper surface of the lip body and located between every two adjacent corners, and an opening of each liquid discharge groove is arranged downwards.

In a further embodiment, sealing rings are sleeved in the two sealing grooves, and the width of the two sealing grooves is equal to the first outer ring and the second outer ring of the first rubber ring and the second rubber ring.

In a further embodiment, a pair of grooves are arranged on the opposite sides of the first rubber ring and the second rubber ring.

Compared with the prior art, the invention has the beneficial effects that: insert a rubber ring and No. two rubber rings in an hole of lip piece body through screw ring and thread groove, and an outer loop that a rubber ring and No. two rubber rings correspond is inserted respectively in two seal grooves with No. two outer loops, the setting of plus sealing washer, can improve the sealed effect after the intercombination, the leakage fluid dram that sets up on the lip piece body simultaneously also can arrange remaining liquid fast, avoid liquid infiltration, indirect improvement is sealed the effect, the sealed main lip of whole combination formula can be installed at the relevant position fast and accurately in addition, certain dismouting efficiency has been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the lip body according to the present invention;

FIG. 3 is a schematic structural view of a rubber ring I according to the present invention;

FIG. 4 is a schematic view of the structure of the second rubber ring of the present invention.

In the figure: 1. a lip body; 2. a corner; 3. mounting holes; 4. a liquid discharge tank; 5. a jack; 6. a first rubber ring; 7. a groove; 8. a second inner hole; 9. a second rubber ring; 10. a seal ring; 11. an inner hole I; 12. a sealing groove; 13. an outer ring I; 14. an inner ring I; 15. a first slot; 16. a thread groove; 17. an outer ring II; 18. an inner ring II; 19. a second slot; 20. a threaded ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a PTFE lip and rubber material combined type sealing main lip comprises a lip body 1, a plurality of corners 2 are fixedly connected to the side surface of the lip body 1, mounting holes 3 are formed in the corners 2, a first inner hole 11 is formed in the lip body 1, sealing grooves 12 are formed in the upper surface and the lower surface of the lip body 1 and are positioned on the outer ring of the first inner hole 11, a first rubber ring 6 and a second rubber ring 9 are inserted into the first inner hole 11 of the lip body 1, a second inner hole 8 is formed in the first rubber ring 6 and the second rubber ring 9, a first inserting groove 15 and a second inserting groove 19 are respectively formed in one side of the first rubber ring 6 and one side of the second rubber ring 9, a first outer ring 13, a first inner ring 14, a second outer ring 17, a second inner ring 18 and a threaded groove 16 are formed in the first inner ring 14, the upper surface of the second inner ring 18 is fixedly connected with a threaded ring 20, and the threaded ring 20 is matched with the threaded groove 16.

In one embodiment, a plurality of insertion holes 5 are formed in the lip body 1, and each insertion hole 5 is formed between the sealing groove 12 and the corner 2.

By adopting the above case, the entire lip body 1 can be positioned in advance so that the mounting hole 3 of each corner 2 can be aligned with the threaded hole on the device.

In one embodiment, a liquid discharge groove 4 is formed in the upper surface of the lip body 1 and between every two adjacent corners 2, and an opening of each liquid discharge groove 4 is arranged downward.

By adopting the above case, the liquid on the surface of the lip body 1 can be drained quickly, and the penetration can be avoided.

In one embodiment, the sealing rings 10 are sleeved in the two sealing grooves 12, and the widths of the two sealing grooves 12 are equal to the first outer ring 13 and the second outer ring 17 of the first rubber ring 6 and the second rubber ring 9.

By adopting the above case, the whole sealing performance is improved.

In one embodiment, a pair of grooves 7 are provided on opposite sides of the first rubber ring 6 and the second rubber ring 9.

By adopting the above case, the first rubber ring 6 and the second rubber ring 9 can be conveniently rotated.

The working principle is as follows: during the use, insert a rubber ring 6 and No. two rubber rings 9 in a hole 11 of lip body 1 through screw ring 20 and thread groove 16, and a outer loop 13 and No. two outer loops 17 that a rubber ring 6 and No. two rubber rings 9 correspond insert respectively in two seal grooves 12, plus sealing washer 10's setting, can improve the sealed effect after the intercombination, the fluid-discharge tank 4 that sets up on the lip body 1 simultaneously also can arrange remaining liquid fast, avoid liquid infiltration, indirect improvement sealed effect, the sealed main lip of whole combination formula can be installed at the relevant position fast and accurately in addition, certain dismouting efficiency has been improved.

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 PTFE lip and rubber material combination formula seal owner lip, includes lip body (1), its characterized in that: fixedly connected with a plurality of corners (2) on the side of lip body (1), be equipped with mounting hole (3) in corner (2), the inside of lip body (1) is equipped with hole (11) No. one, the upper and lower surface of lip body (1) and the outer lane that is located hole (11) all are equipped with seal groove (12), lip body (1) is located hole (11) interpolation No. one rubber ring (6) and No. two rubber rings (9), the inside of rubber ring (6) and No. two rubber rings (9) all is equipped with No. two hole (8), one side of rubber ring (6) and No. two rubber rings (9) is equipped with slot (15) and No. two slot (19) respectively, the both sides that rubber ring (6) and No. two rubber rings (9) are located slot (15) and No. two slot (19) are provided with outer loop (13) respectively, The inner ring (14) is provided with a thread groove (16), the upper surface of the second inner ring (18) is fixedly connected with a thread ring (20), and the thread ring (20) is matched with the thread groove (16).

2. The PTFE lip and rubber combined primary seal lip of claim 1, wherein: the inside of lip body (1) is equipped with a plurality of jacks (5), and every jack (5) all set up between seal groove (12) and corner (2).

3. The PTFE lip and rubber combined primary seal lip of claim 1, wherein: the upper surface of the lip body (1) is provided with liquid discharge grooves (4) between every two adjacent corners (2), and the opening of each liquid discharge groove (4) is arranged downwards.

4. The PTFE lip and rubber combined primary seal lip of claim 1, wherein: two all overlap in seal groove (12) has sealing washer (10), and two the width of seal groove (12) all equals an outer loop (13) and No. two outer loop (17) of a rubber ring (6) and No. two rubber ring (9).

5. The PTFE lip and rubber combined primary seal lip of claim 1, wherein: a pair of grooves (7) are formed in the opposite sides of the first rubber ring (6) and the second rubber ring (9).