High-strength nitrile rubber sealing sleeve assembly for sewer pipe valve

Abstract

The utility model provides a high-strength nitrile rubber sealing sleeve assembly for a sewer pipe valve, which relates to the field of sewer pipe valves and comprises a water valve sealing sleeve, a sealing pressing ring is attached to the outer surface of the water valve sealing sleeve, and a sealing pressing block is inserted into the water valve sealing sleeve through an arc-shaped groove. The side end of the sealing pressing block is connected with an inner groove cavity of the sealing pressing ring through a limiting pressing plate, the side end of the limiting pressing plate is connected with a chrome-plated steel spring, an impurity blocking inner ring is attached to the inner side face of the water valve sealing sleeve, and a filling groove is formed in the inner side face of the impurity blocking inner ring. The utility model solves the problem of water leakage caused by untight sealing of a sewer pipe valve due to the fact that impurities in water flow are easy to wash into the sealing surface of the sealing sleeve in daily use.

Description

Technical Field

[0001] The utility model relates to the technical field of sewer valves, in particular to a high-strength nitrile rubber sealing sleeve component for a sewer valve. Background Art

[0002] During the installation of the sewer valve, a sealing sleeve is required to achieve a seal with the contact surface of the valve body of the water pipe valve to block the water flow inside the pipe to prevent leakage. However, during daily use, impurities in the water flow are easily washed into the sealing surface of the sealing sleeve, resulting in the sewer valve not being sealed tightly and leaking. Utility Model Content

[0003] In order to overcome the defects of the prior art, a high-strength nitrile rubber sealing sleeve assembly for a sewer pipe valve is provided to solve the problem that impurities in the water flow are easily washed into the sealing surface of the sealing sleeve during daily use, resulting in poor sealing of the sewer pipe valve and water leakage.

[0004] In order to achieve the above object, a high-strength nitrile rubber sealing sleeve assembly for a sewer valve is provided, comprising: a water valve sealing sleeve, a sealing pressure ring is attached to the outer surface of the water valve sealing sleeve,

[0005] A sealing pressure block is inserted into the water valve sealing sleeve through an arc groove, and the side end of the sealing pressure block is connected to the inner groove cavity of the sealing pressure ring through a limiting pressure plate. The side end of the limiting pressure plate is connected to a chrome-plated steel spring. The inner side surface of the water valve sealing sleeve is fitted with an impurity-blocking inner ring, and the inner side surface of the impurity-blocking inner ring is provided with a filling groove.

[0006] Furthermore, a water valve sealing sleeve made of nitrile rubber is sleeved on the inner side of the sealing pressure ring, and the outer side surface of the sealing pressure ring is in contact with the valve wall of the sewer pipe valve.

[0007] Furthermore, the arc groove is symmetrically arranged in the water valve sealing sleeve, and a sealing pressing block made of nitrile rubber is inserted and embedded in the arc groove.

[0008] Furthermore, a limiting pressure plate is fixed to the left end of the sealing pressure block, and the left end of the limiting pressure plate is connected to the sealing pressure ring through a chrome-plated steel spring.

[0009] Furthermore, the outer ring surface of the impurity-barrier inner ring is provided with an integrally formed connecting convex ring; and the connecting convex ring is embedded in the water valve sealing sleeve.

[0010] Furthermore, the filling groove on the inner side surface of the impurity-barrier inner ring is a concave annular groove.

[0011] Furthermore, the sealing pressure block, the limiting pressure plate and the chrome-plated steel spring constitute a pressing structure of the water valve sealing sleeve.

[0012] The beneficial effect of the utility model is that the high-strength nitrile rubber sealing sleeve assembly for the sewer pipe valve of the utility model utilizes the impurity-blocking inner ring on the inner side of the water valve sealing sleeve to flush impurities in the water flow of the sewer pipe valve into the filling groove of the impurity-blocking inner ring, thereby facilitating the blocking of impurities in the pipeline water flow and preventing impurities from being stuck on the sealing surface of the sewer pipe valve and affecting the sealing effect; the sealing block inserted in the water valve sealing sleeve is squeezed by a chrome-plated steel spring so that the water valve sealing sleeve and the sealing block are tightly sealed to the sewer pipe valve surface, thereby enhancing the sealing effect of the nitrile rubber sealing sleeve assembly and reducing water leakage of the sewer pipe valve due to poor sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the high-strength nitrile rubber sealing sleeve assembly according to an embodiment of the utility model.

[0014] Figure 2 It is a front view cross-sectional structural schematic diagram of a high-strength nitrile rubber sealing sleeve assembly according to an embodiment of the utility model.

[0015] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the high-strength nitrile rubber sealing sleeve assembly according to an embodiment of the utility model.

[0016] Figure 4 It is a schematic diagram of the side cross-sectional structure of the water valve sealing sleeve according to an embodiment of the utility model.

[0017] In the figure: 1. water valve sealing sleeve; 11. arc groove; 2. sealing pressure ring; 21. chrome-plated steel spring; 3. sealing pressure block; 31. limit pressure plate; 4. impurity-blocking inner ring; 41. filling groove; 42. connecting convex ring. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 4 As shown, the utility model provides a high-strength nitrile rubber sealing sleeve assembly for a sewer valve, comprising: a water valve sealing sleeve 1, a sealing pressure ring 2 is attached to the outer surface of the water valve sealing sleeve 1,

[0019] A sealing pressure block 3 is inserted into the water valve sealing sleeve 1 through an arc groove 11. The side end of the sealing pressure block 3 is connected to the inner groove cavity of the sealing pressure ring 2 through a limiting pressure plate 31. The side end of the limiting pressure plate 31 is connected to a chrome-plated steel spring 21. The inner side surface of the water valve sealing sleeve 1 is fitted with an impurity-blocking inner ring 4, and a filling groove 41 is opened on the inner side surface of the impurity-blocking inner ring 4.

[0020] The sealing sleeve assembly of the sewer valve is through the impurity-blocking inner ring 4 on the inner side of the water valve sealing sleeve 1, so that impurities in the water flow of the sewer valve are washed into the filling groove 41 of the impurity-blocking inner ring 4, which is convenient for blocking impurities in the pipeline water flow and preventing impurities from getting stuck on the sealing surface of the sewer valve and affecting the sealing effect. The sealing block 3 inserted in the water valve sealing sleeve 1 is squeezed by the chrome-plated steel spring 21, so that the water valve sealing sleeve 1 and the sealing block 3 are tightly sealed with the sewer valve surface, thereby strengthening the sealing effect of the nitrile rubber sealing sleeve assembly and reducing water leakage of the sewer valve due to poor sealing.

[0021] In this embodiment, a water valve sealing sleeve 1 made of nitrile rubber is sleeved on the inner side of the sealing pressure ring 2, and the outer side of the sealing pressure ring 2 is in contact with the valve wall of the sewer pipe valve.

[0022] As a preferred implementation, the water valve sealing sleeve 1, the sealing pressure ring 2, the sealing pressure block 3 and the impurity-barrier inner ring 4 form a sealing sleeve assembly that is tightly sealed at the sewer valve. At the same time, the water valve sealing sleeve 1 and the sealing pressure block 3 made of nitrile rubber have high strength, excellent oil resistance, high wear resistance, good heat resistance, and strong adhesion, which improves the service life of the sealing sleeve assembly.

[0023] In this embodiment, the arc groove 11 is symmetrically arranged inside the water valve sealing sleeve 1, and a sealing block 3 made of nitrile rubber is inserted and inserted into the arc groove 11. A limit pressure plate 31 is fixed to the left end of the sealing block 3, and the left end of the limit pressure plate 31 is connected to the sealing ring 2 through a chrome-plated steel spring 21. The sealing block 3, the limit pressure plate 31 and the chrome-plated steel spring 21 constitute a pressing structure of the water valve sealing sleeve 1.

[0024] As a preferred embodiment, the upper and lower ends of the two symmetrical arc grooves 11 are connected through the channel; and the sealing block 3 is an annular plate body pressed on the arc groove 11 and the connecting channel. The chrome-plated steel spring 21 pushes the sealing block 3 to press the water valve sealing sleeve 1 through the limit pressure plate 31, so that the water valve sealing sleeve 1 and the valve wall of the sewer pipe valve are tightly sealed, the sealing effect of the nitrile rubber sealing sleeve assembly is strengthened, and the water leakage of the sewer pipe valve due to poor sealing is reduced.

[0025] In this embodiment, the outer ring surface of the impermeable inner ring 4 is provided with an integrally formed connecting convex ring 42, and the connecting convex ring 42 is embedded in the water valve sealing sleeve 1. The filling groove 41 on the inner side surface of the impermeable inner ring 4 is an inner concave annular groove.

[0026] As a preferred embodiment, the connecting convex ring 42 and the impurity-blocking inner ring 4 are made of silicone rubber, and the impurities entering are stuck in the annular groove through the inner filling groove 41, thereby preventing the impurities from getting stuck in the sealing surface of the sewer valve and affecting the sealing effect.

[0027] The high-strength nitrile rubber sealing sleeve assembly for the sewer pipe valve of the utility model can effectively solve the problem that impurities in the water flow are easily washed into the sealing surface of the sealing sleeve, which is convenient for blocking impurities in the pipeline water flow and preventing impurities from being stuck on the sealing surface of the sewer pipe valve and affecting the sealing effect, thereby enhancing the sealing effect of the nitrile rubber sealing sleeve assembly and reducing water leakage caused by poor sealing of the sewer pipe valve. The utility model is suitable for the high-strength nitrile rubber sealing sleeve assembly for sewer pipe valves.

Claims

1. A high-strength nitrile rubber sealing sleeve assembly for a sewer valve, comprising: A water valve sealing sleeve (1), wherein a sealing pressure ring (2) is attached to the outer surface of the water valve sealing sleeve (1), and is characterized in that: A sealing block (3) is inserted into the water valve sealing sleeve (1) through an arc groove (11); the side end of the sealing block (3) is connected to the inner groove cavity of the sealing ring (2) through a limiting pressure plate (31); the side end of the limiting pressure plate (31) is connected to a chrome-plated steel spring (21); the inner side surface of the water valve sealing sleeve (1) is fitted with an impurity-blocking inner ring (4); and the inner side surface of the impurity-blocking inner ring (4) is provided with a filling groove (41).

2. The high-strength nitrile rubber sealing sleeve assembly for a sewer valve according to claim 1, characterized in that: The inner side of the sealing pressure ring (2) is sleeved with a water valve sealing sleeve (1) made of nitrile rubber, and the outer side surface of the sealing pressure ring (2) is in contact with the valve wall of the sewer pipe valve.

3. The high-strength nitrile rubber sealing sleeve assembly for a sewer valve according to claim 1, characterized in that: The arc-shaped groove (11) is symmetrically arranged in the water valve sealing sleeve (1) in the upper and lower directions, and a sealing pressing block (3) made of nitrile rubber is inserted and inserted in the arc-shaped groove (11).

4. The high-strength nitrile rubber sealing sleeve assembly for a sewer valve according to claim 1, characterized in that: A limiting pressure plate (31) is fixed to the left end of the sealing pressure block (3), and the left end of the limiting pressure plate (31) is connected to the sealing pressure ring (2) via a chrome-plated steel spring (21).

5. The high-strength nitrile rubber sealing sleeve assembly for a sewer valve according to claim 1, characterized in that: The outer ring surface of the impurity-blocking inner ring (4) is provided with an integrally formed connecting convex ring (42); and the connecting convex ring (42) is embedded in the interior of the water valve sealing sleeve (1).

6. The high-strength nitrile rubber sealing sleeve assembly for a sewer valve according to claim 1, characterized in that: The filling groove (41) on the inner side surface of the impurity-blocking inner ring (4) is an inwardly concave annular groove.

7. The high-strength nitrile rubber sealing sleeve assembly for a sewer valve according to claim 1, characterized in that: The sealing pressure block (3), the limiting pressure plate (31) and the chrome-plated steel spring (21) form a tight compression structure of the water valve sealing sleeve (1).

Images