Combined type anti-falling end face sealing ring

Abstract

A combined type anti-falling end face sealing ring relates to the technical field of sealing devices and comprises a valve seat, a groove is formed in the valve seat, four pulling plates are evenly arranged in the groove, a plastic sealing ring is installed in the groove, an installation groove is formed in the outer side of the plastic sealing ring, four limiting grooves are formed in the plastic sealing ring, and the limiting grooves are matched with the pulling plates. Four connecting rods are uniformly arranged in the mounting groove in the outer side of the plastic sealing ring, a rubber ring is mounted in the mounting groove in the outer side of the plastic sealing ring, four through holes are formed in the rubber ring, and the through holes in the rubber ring are matched with the connecting rods in the mounting groove. According to the utility model, the plastic sealing ring is matched with the rubber ring for use, so that the problem of end face sealing falling is solved, and the safety and reliability of the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealing device technical field especially relates to a combined type anti -drop end face sealing ring. BACKGROUND

[0002] The sealing ring is a kind of accessory for sealing effect. It is commonly applied to the sealing between bearing or reciprocating shaft and shaft sleeve, to prevent lubricating oil leakage and the invasion of external dust, impurities, slurry, water vapor, air or bacteria, and long-time use in harsh environment can cause wear and tear relaxation, heat denaturation, thereby affecting its use.

[0003] The sealing effect is influenced by solid materials and use environment, and the self-lubricating property of rubber is relatively poor, and the elasticity of plastic is insufficient, so it is difficult to achieve self-compensation, leading to poor experience in using the sealing ring. Many forms of rubber ring and plastic combined sealing elements have appeared later, but it is difficult to prevent end face sealing from falling off in special occasions. Once falling off, it will cause work program error, thereby causing great loss. SUMMARY

[0004] The utility model provides a combined type anti -drop end face sealing ring.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0006] A combined type anti -drop end face sealing ring, including valve seat, recess is set up on valve seat, four pull plates are evenly arranged in recess, plastic sealing ring is installed in recess, installation groove is set up on the outside of plastic sealing ring, four limiting grooves are set up in plastic sealing ring, limiting groove is matched with pull plate, four connecting rods are evenly arranged in the installation groove of the outside of plastic sealing ring, rubber ring is installed in the installation groove of the outside of plastic sealing ring, four through holes are set up on rubber ring, and the through hole on rubber ring is matched with the connecting rod in installation groove.

[0007] The utility model further optimizes the scheme: the width of limiting groove is different at both ends, the width of one end of limiting groove is same with the diameter of pull plate, and the width of the other end of limiting groove is less than the diameter of pull plate.

[0008] The utility model has the advantages of:

[0009] The utility model uses plastic sealing ring in cooperation with rubber ring, solves the problem of end face sealing falling off, and increases the safety and reliability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is the front view cross section structure schematic diagram of the utility model;

[0011] Fig. 2The utility model discloses a three -dimensional structure schematic diagram of the utility model discloses a plastic sealing ring's bottom structure schematic diagram.

[0012] Fig. 3 The utility model discloses a three -dimensional structure schematic diagram of the utility model discloses a plastic sealing ring's bottom structure schematic diagram.

[0013] In the figure: 1 valve seat, 2 plastic sealing ring, 3 rubber ring, 4 connecting rod, 5 recess, 6 pull rod, 7 installation groove. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0015] According to Figs. 1-3 As shown in the figure, a combined type anti-falling end face sealing ring, including valve seat 1, recess 5 is set up on valve seat 1, four pull plates 6 are evenly arranged in recess 5, plastic sealing ring 2 is installed in recess 5, installation groove 7 is set up on the outside of plastic sealing ring 2, four limiting grooves are set up in plastic sealing ring 2, limiting groove and pull plate 6 are matched, four connecting rods 4 are evenly arranged in installation groove 7 on the outside of plastic sealing ring 2, rubber ring 3 is installed in installation groove 7 on the outside of plastic sealing ring 2, four through holes are set up on rubber ring 3, and the through hole on rubber ring 3 is matched with connecting rod 4 in installation groove 7.

[0016] The width of the two ends of the limiting groove is different, the width of one end of the limiting groove is same with the diameter of pull plate 6, and the width of the other end of the limiting groove is less than the diameter of pull plate 6.

[0017] Working principle: plastic sealing ring 2 is placed in installation groove 7 through pull plate 6, then rotates plastic sealing ring 2, can fix plastic sealing ring 2, and cooperation connecting rod 4 fixes rubber ring 3, reduces the possibility of end face sealing falling off.

[0018] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and utility model concept of the utility model, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A combined anti-extrusion face seal, characterized by: The utility model provides a valve seat (1) is provided with recess (5) on it, and the recess (5) is provided with four pull plate (6) evenly in, and the recess (5) is provided with plastic sealing ring (2) in, and the plastic sealing ring (2) is provided with installation groove (7) on the outside, and the plastic sealing ring (2) is provided with four limit slot in, and the limit slot is matched with pull plate (6), and the plastic sealing ring (2) is provided with four connecting rod (4) evenly in the installation groove (7) on the outside, and the plastic sealing ring (2) is provided with rubber ring (3) in the installation groove (7) on the outside, and the rubber ring (3) is provided with four through -hole on it, and the through -hole on the rubber ring (3) is matched with connecting rod (4) in the installation groove (7).

2. The combined anti-extrusion face seal ring according to claim 1, wherein: The width of the limit slot is different at both ends, the width of one end of the limit slot is same with the diameter of the pull plate (6), and the width of the other end of the limit slot is less than the diameter of the pull plate (6).

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