CN219472712U - Wear-resistant sealing ring - Google Patents

Abstract

The utility model relates to the technical field of sealing rings, and discloses a wear-resistant sealing ring, which comprises a main pipeline and a rubber ring, wherein the outer surface of the main pipeline is fixedly connected with a retainer ring, a separation ring capable of being blocked is sleeved on the outer surface of the main pipeline above the retainer ring, a main sealing ring capable of being sealed is sleeved on the outer surface of the main pipeline, and an auxiliary sealing ring capable of being sealed in an auxiliary mode is clamped on the outer surface of the main sealing ring. This wear-resisting sealing washer, through the cooperation setting of main sealing washer and vice sealing washer, can be under double seal's assurance, further reduce the leakage of liquid, and then promote the holistic leakproofness of device, through the cooperation setting of main sealing washer and vice sealing washer, can fill the space after wearing and tearing with the help of inside air to guarantee that the device possesses sufficient sealing capability, and after long-time the use, can change vice sealing washer alone, thereby reduce the holistic replacement cost of the device.

Description

Wear-resistant sealing ring

Technical Field

The utility model relates to the technical field of sealing rings, in particular to a wear-resistant sealing ring.

Background

The sealing ring is fixed on one ring or gasket of the bearing and contacts with the other ring or gasket or forms a narrow labyrinth gap to prevent lubricating oil from leaking and foreign objects from entering, and is used for being installed on various mechanical equipment and sealing in a static state or a moving state under specified temperature and pressure and different liquids and gases.

HNBR hydrogenated nitrile rubber sealing ring: the modified acrylonitrile butadiene rubber has excellent corrosion resistance, tearing resistance and compression deformation resistance, better ozone resistance, sunlight resistance and weather resistance, better abrasion resistance than nitrile butadiene rubber, is suitable for washing machines, automobile engine systems and refrigerating systems using novel environment-friendly refrigerants R134a, is not recommended to be used in alcohols, esters or aromatic solutions, and is generally used at the temperature of-40-150 ℃.

SIL silicone rubber sealing ring: the rubber has excellent heat resistance, cold resistance, ozone resistance and atmospheric aging resistance, has good insulating property, has poorer tensile strength than common rubber and has no oil resistance, and is suitable for household appliances such as electric water heaters, electric irons, microwave ovens and the like. It is also suitable for various articles contacting with human body, such as kettles, water dispensers, etc., and is not recommended to be used in most concentrated solvents, oil products, concentrated acid and sodium hydroxide, and the temperature is generally in the range of-55-250 ℃.

VITON fluoro-material rubber seal ring: the high temperature resistance is superior to that of silicon rubber, the high temperature resistance has excellent weather resistance, ozone resistance and chemical resistance, the cold resistance is poor, and the high temperature resistance has resistance to most of oil products and solvents, especially acids, aliphatic hydrocarbons, aromatic hydrocarbons and animal and vegetable oils, and is suitable for the sealing requirements of diesel engines, fuel systems and chemical plants. The use of ketones, low molecular weight esters and mixtures containing nitro compounds is not recommended, generally at temperatures in the range from-20 to 250 ℃.

FLS fluorosilicone rubber sealing ring: the performance of the modified silicone rubber has the advantages of fluorine rubber and silicone rubber, and is good in oil resistance, solvent resistance, fuel oil resistance and high and low temperature resistance. Can resist the erosion of oxygen-containing compounds, aromatic hydrocarbon-containing solvents and chlorine-containing solvents. It is generally used for aviation, aerospace and military applications, and is not recommended to be exposed to ketone and brake oil, and the temperature is generally used in the range of-50 to 200 ℃.

EPDM ethylene propylene diene monomer rubber sealing ring: has good weather resistance, ozone resistance, water resistance and chemical resistance. Can be used for sealing alcohol and ketone, and also can be used for sealing high-temperature vapor environment, and is suitable for bathroom equipment, automobile radiator and automobile brake system. Not recommended for food use or for exposure to mineral oil, temperatures in the range of-55 to 150 ℃ are typically used.

Chinese patent publication No. CN213839506U discloses a wear-resistant seal, relates to the sealing washer field, and this wear-resistant seal includes sealing washer and lower sealing washer, the top slot has been seted up at the sealing washer top, the both sides of top slot go up sealing washer top be provided with first top wearing layer and second top wearing layer respectively, lower sealing washer set up in last sealing washer bottom, the bottom slot has been seted up to lower sealing washer bottom, the both sides of bottom slot lower sealing washer bottom is provided with first bottom wearing layer and second bottom wearing layer respectively, the mounting slot has been seted up at lower sealing washer top, the inside elastic support piece that is provided with of mounting slot, first top wearing layer and second top wearing layer at last sealing washer top make the sealing washer have good wear resistance, and first bottom wearing layer and second bottom wearing layer at lower sealing washer bottom make the sealing washer have good wear resistance down.

However, when the utility model is actually used, the following problems exist:

1. after the device is installed, the gap of the pipeline cannot be fully sealed, and the leakage is easy to occur when the device is worn in a single sealing mode;

2. after a long period of use, the seal cannot fill the worn-out space, and gaps still occur, which can lead to leakage of liquid.

Disclosure of Invention

(one) solving the technical problems

In order to overcome the defects in the prior art, the utility model provides a wear-resistant sealing ring, which solves the problems in the prior art:

1. after the device is installed, the gap of the pipeline cannot be fully sealed, and the leakage is easy to occur when the device is worn in a single sealing mode;

2. after long use, the seal ring cannot fill the worn space, and the problem of leakage of liquid due to gaps still occurs.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a wear-resisting sealing washer, includes trunk line and the rubber circle of surface fixedly connected with retaining ring, but the spacer ring that can separate has been cup jointed to the top that trunk line surface is located the retaining ring, but the surface of trunk line cup joints sealed main sealing washer, the surface joint of main sealing washer has auxiliary seal's vice sealing washer.

Optionally, the inner wall of the main sealing ring is provided with a buffer groove for inflation, and the inner wall of the buffer groove is filled with nitrogen capable of being buffered.

Optionally, the constant head tank that can supply the installation is all offered to the top and the bottom of main sealing washer, the inner wall of constant head tank and the surface joint of vice sealing washer.

Optionally, an air groove for inflation is formed in the inner wall of the auxiliary sealing ring, and expandable nitrogen is filled in the inner wall of the air groove.

Optionally, the fixed slot that can supply the installation has been seted up to the inside wall of main sealing washer, the inner wall joint of fixed slot has the rubber circle that can supply the seal.

Optionally, one end of the outer surface of the rubber ring abuts against the inner side wall of the fixing groove, and the other end of the outer surface of the rubber ring abuts against the outer wall of the main pipeline.

Optionally, the inside wall threaded connection of trunk line has the go-between that can connect fixedly, the go-between surface cup joints the accessory pipeline that can drain.

Optionally, the external surface fixedly connected with of auxiliary pipeline can supply sealed seal cover, the inside wall of seal cover cup joints with the surface of main sealing washer.

(III) beneficial effects

The utility model provides a wear-resistant sealing ring, which has the following beneficial effects:

1. this wear-resisting sealing washer, through the cooperation setting of main sealing washer and vice sealing washer, can be under double seal's assurance, further reduce the leakage of liquid, and then promote the holistic leakproofness of the device, through the setting of rubber circle, can form labyrinth seal between main sealing washer and the sealing washer, and then block the leakage of liquid, guarantee the holistic sealing capability of the device.

2. The wear-resistant sealing ring is arranged through the matching of the main sealing ring and the auxiliary sealing ring, and can fill the worn space by means of the air in the main sealing ring and the auxiliary sealing ring, so that the device is guaranteed to have sufficient sealing capacity, and after long-time use, the auxiliary sealing ring can be independently replaced, and the overall replacement cost of the device is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 3 is a schematic view of the installation structure of the main seal ring of the present utility model;

FIG. 4 is a schematic diagram of the explosion structure of the main seal ring of the present utility model.

In the figure: 1. a main pipe; 2. a retainer ring; 3. a spacer ring; 4. a main seal ring; 5. a buffer tank; 6. a positioning groove; 7. an auxiliary sealing ring; 8. a hollow groove; 9. a fixing groove; 10. a rubber ring; 11. a connecting ring; 12. sealing sleeve; 13. and a secondary pipeline.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 2, the present utility model provides a technical solution: wear-resistant sealing ring: the main pipeline 1 with the outer surface fixedly connected with the retainer ring 2 and the rubber ring 10 are arranged above the retainer ring 2 in a sleeved mode, the retainer ring 2 and the retainer ring 3 are matched, the two main sealing rings 4 can be blocked, the outer surface of the retainer ring 3 can abut against the outer wall of the tight sealing sleeve 12, the contact area between the main sealing rings 4 and the auxiliary sealing rings 7 is guaranteed, the integral sealing performance of the device is improved, the bottom of the main sealing rings 4 can be blocked by the retainer ring 2, the main sealing rings 4 and the auxiliary sealing rings 7 can be guaranteed to fully exert sealing performance, and relative displacement between the main sealing rings 4 and the auxiliary sealing rings 7 is reduced;

referring to fig. 4, by setting the buffer tank 5, the main sealing ring 1 can be relatively compressed under the condition of unstable matching between the main pipe 1 and the auxiliary pipe 13, so as to ensure that the main sealing ring 4 can be tightly attached to a gap, further ensure the tightness of the device, and the internal nitrogen can expand the main sealing ring 4, so that the overall sealing performance of the device is ensured;

referring to fig. 4, by setting the positioning groove 6, the auxiliary sealing ring 7 can be installed and positioned, and a labyrinth seal can be formed between the main sealing ring 4 and the auxiliary sealing ring 7, so that the overall installation performance of the device is ensured, and the hollow groove 8 in the auxiliary sealing ring 7 can also expand the auxiliary sealing ring 7, so that the overall tightness of the auxiliary sealing ring 7 is ensured;

referring to fig. 3 and 4, a fixing groove 9 for mounting is formed in the inner side wall of the main sealing ring 4, a rubber ring 10 for sealing is clamped on the inner wall of the fixing groove 9, one end of the outer surface of the rubber ring 10 abuts against the inner side wall of the fixing groove 9, the other end of the outer surface of the rubber ring 10 abuts against the outer wall of the main pipe 1, the sealing performance between the main sealing ring 4 and the main pipe 1 can be improved through the matching arrangement of the fixing groove 9 and the rubber ring 10, leakage of liquid is further reduced, after the main sealing ring is used for a long time, the rubber ring 10 can be independently replaced, the main sealing ring 4 is reserved, and further the cost required for replacing the device is reduced;

referring to fig. 2, the inner side wall of the main pipe 1 is in threaded connection with a connecting ring 11 which can be fixedly connected, the outer surface of the connecting ring 11 is sleeved with a secondary pipe 13 which can be drained, the outer surface of the secondary pipe 13 is fixedly connected with a sealing sleeve 12 which can be used for sealing, the inner side wall of the sealing sleeve 12 is sleeved with the outer surface of the main sealing ring 4, the main pipe 1 and the secondary pipe 13 can be in butt joint and fixation through the arrangement of the connecting ring 11, the overall tightness of the device is further ensured, and the main sealing ring 4 and the secondary sealing ring 7 can be wrapped through the arrangement of the sealing sleeve 12, so that the sealing performance of the main sealing ring 4 and the secondary sealing ring 7 can be fully exerted.

In the utility model, the working steps of the device are as follows:

firstly, the auxiliary sealing ring 7 is clamped into the positioning groove 6 on the surface of the main sealing ring 4, then the rubber ring 10 is arranged in the fixing groove 9, the main sealing ring 4 can be sleeved on the surface of the main pipeline 1, then the connecting ring 11 is arranged at the top of the main pipeline 1, the sealing sleeve 12 can be tightly pressed against the main sealing ring 4 and the auxiliary sealing ring 7, the installation of the device can be completed, after the device is used regularly, the rubber ring 10 and the auxiliary sealing ring 7 can be independently replaced, so that the cost required for replacement is further reduced, after the device is worn, the main sealing ring 4 and the auxiliary sealing ring 7 can be filled in the worn position through expansion of the device, so that the whole safety of the device is further ensured, and leakage is reduced, and the device can be checked by staff regularly.

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

Claims (8)

1. The utility model provides a wear-resisting sealing washer, includes trunk line (1) and rubber circle (10) of surface fixedly connected with retaining ring (2), its characterized in that: the external surface of trunk line (1) is located the top of retaining ring (2) and has cup jointed spacer ring (3) that can separate, the external surface of trunk line (1) has cup jointed sealable main sealing washer (4), the external surface joint of main sealing washer (4) has auxiliary seal's vice sealing washer (7).

2. A wear seal in accordance with claim 1, wherein: the inner wall of the main sealing ring (4) is provided with a buffering groove (5) which can be inflated, and the inner wall of the buffering groove (5) is filled with nitrogen which can be buffered.

3. A wear seal in accordance with claim 1, wherein: the top and the bottom of main sealing washer (4) all have seted up constant head tank (6) that can supply the installation, the inner wall of constant head tank (6) and the surface joint of vice sealing washer (7).

4. A wear seal in accordance with claim 3, wherein: an inflatable empty groove (8) is formed in the inner wall of the auxiliary sealing ring (7), and inflatable nitrogen is filled in the inner wall of the empty groove (8).

5. A wear seal in accordance with claim 1, wherein: the inner side wall of the main sealing ring (4) is provided with a fixing groove (9) which can be installed, and the inner wall of the fixing groove (9) is clamped with a rubber ring (10) which can be used for sealing.

6. A wear-resistant seal in accordance with claim 5, wherein: one end of the outer surface of the rubber ring (10) is abutted against the inner side wall of the fixing groove (9), and the other end of the outer surface of the rubber ring (10) is abutted against the outer wall of the main pipeline (1).

7. A wear seal in accordance with claim 1, wherein: the inner side wall threaded connection of trunk line (1) has connecting ring (11) that can connect fixedly, auxiliary pipeline (13) that can drain have been cup jointed to connecting ring (11) surface.

8. A wear seal in accordance with claim 7, wherein: the outer surface of the auxiliary pipeline (13) is fixedly connected with a sealing sleeve (12) for sealing, and the inner side wall of the sealing sleeve (12) is sleeved with the outer surface of the main sealing ring (4).