Floating sealing assembly of liquid valve

Abstract

The utility model discloses a floating sealing assembly of a liquid valve. The floating sealing assembly comprises an arc-shaped hoop I and a fixed mounting mechanism, the lower end of the first arc-shaped hoop is rotationally connected with a second arc-shaped hoop through a rotating shaft, a floating seal seat is clamped to the inner wall of a whole formed by the first arc-shaped hoop and the second arc-shaped hoop, floating seal rings which are symmetrical left and right are arranged on the inner side of the floating seal seat, and circular rings are arranged between the outer portions of the floating seal rings and the inner side of the floating seal seat. The fixed mounting mechanism comprises inserting strips and inserting holes, the inserting strips which are bilaterally symmetrical are arranged on the rear side face of the upper end of the second arc-shaped hoop, and the inserting holes which are bilaterally symmetrical are formed in the front side face of the upper end of the first arc-shaped hoop. According to the floating seal device, efficient sealing can be achieved, small impurities in liquid are prevented from entering a gap between the floating seal ring and the floating seal base, damage to the floating seal ring is reduced, the service life of the floating seal ring is prolonged, meanwhile, the floating seal ring and the floating seal base are fixed and not prone to loosening, and later sealing material replacement is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing, in particular to a floating sealing component of a liquid valve. Background Art

[0002] Floating seal is a high-performance seal that integrates floating ring seal, gap seal and comb seal, and uses the tension of oil film to effectively prevent leakage. It is used in electric power, petroleum, chemical industry, petrochemical industry, metallurgy, etc. The floating ring of FX composite floating seal is sintered with special composite materials and scientific formula. It has the characteristics of light weight, wear resistance, temperature resistance, self-lubrication, etc. It is suitable for small and medium-sized dynamic seals in various low-temperature lubricating media and cooling media.

[0003] In some existing floating seal assemblies of liquid valves, two floating seal rings rely on the deformation of the sealing rings after axial compression to generate a pressing force on the two end faces of the floating seal rings that are opposite to each other to produce sealing performance; the floating seal assemblies in the prior art have the following problems: the gap between the existing floating seal ring and the floating seal seat is generally not sealed, and fine impurities in the liquid will enter the floating seal ring and the floating seal seat, which will accelerate damage after long-term use, reducing the service life of the floating seal ring. Therefore, a floating seal assembly for a liquid valve is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a floating seal assembly for a liquid valve to achieve efficient sealing, prevent fine impurities in the liquid from entering the gap between the floating seal ring and the floating seal seat, reduce damage to the floating seal ring, and increase the service life of the floating seal ring. At the same time, the floating seal ring and the floating seal seat are fixed and are not easy to loosen, which is convenient for the replacement of the sealing material at a later stage, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a floating seal assembly for a liquid valve, comprising an arc-shaped clamp and a fixed installation mechanism;

[0006] The lower end of the arc-shaped clamping hoop 1 is rotatably connected to the arc-shaped clamping hoop 2 through a rotating shaft, and the inner wall of the arc-shaped clamping hoop 1 and the arc-shaped clamping hoop 2 as a whole is clamped with a floating seal seat, and the inner side of the floating seal seat is respectively provided with a left-right symmetrical floating seal ring, and a circular ring is respectively provided between the outer side of the floating seal ring and the inner side of the floating seal seat;

[0007] The fixed installation mechanism includes an insert strip and an insert hole. The rear side surface of the upper end of the second arc-shaped clamp is provided with a left-right symmetrical insert strip, and the front side surface of the upper end of the first arc-shaped clamp is provided with a left-right symmetrical insert hole. The insert strips are installed in cooperation with adjacent insert holes to achieve efficient sealing, prevent fine impurities in the liquid from entering the gap between the floating seal ring and the floating seal seat, reduce damage to the floating seal ring, and increase the service life of the floating seal ring. At the same time, the floating seal ring and the floating seal seat are fixed and are not easy to loosen, which is convenient for the later replacement of the sealing material.

[0008] Furthermore, the fixed installation mechanism also includes a slide groove, a slide plate and an insertion block. The rear ends of the insertion strips are respectively provided with slide grooves, the insides of the slide grooves are respectively slidably connected with slide plates, and the middle parts of the outer walls of the slide plates are respectively fixedly connected with insertion blocks to achieve plug-in.

[0009] Furthermore, the fixed installation mechanism also includes avoidance holes, and the left and right sides of the upper end of the arc-shaped clamp are respectively provided with avoidance holes, and the avoidance holes are installed in cooperation with adjacent plug-in blocks to facilitate plug-in.

[0010] Furthermore, the fixed installation mechanism also includes a telescopic rod and a spring. The inner side surface of the slide plate and the inner side wall of the slide groove are respectively fixedly connected with the telescopic rod, and the outside of the telescopic rod is respectively sleeved with a spring to provide rebound.

[0011] Furthermore, a rubber sealing strip is provided between the inner side surfaces of the arc-shaped clamp 1 and the arc-shaped clamp 2 and the outer wall of the floating seal seat to facilitate sealing.

[0012] Furthermore, the arc-shaped clamp 1 and the arc-shaped clamp 2 are both elastic steel band clamps, which are easy to fix.

[0013] Furthermore, friction patterns are provided in the middle of the left and right side surfaces of the arc-shaped clamp 1 and the arc-shaped clamp 2 to increase friction during installation.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. First, align the two floating seal seats, then cover the outer walls of the two floating seal seats with rubber sealing strips, then place two rings on the two floating seal seats, and then squeeze the floating seal rings with the outer surfaces of the two rings respectively, and then cover the arc clamp 1 and arc clamp 2 on the outside of the two floating seal seats to achieve efficient sealing;

[0016] 2. Then, the insert strips are respectively plugged into the adjacent sockets. When the insert strips slide in the corresponding sockets, the insert blocks at the front end of the insert strips slide to the avoidance holes. Under the rebound action of the telescopic rod and the spring, the slide plates are respectively pushed outward, thereby driving the insert blocks to be plugged into each other, thereby fixing the floating seal seat and preventing impurities in the liquid from entering the floating seal seat. When the internal sealing material needs to be replaced, the insert blocks at both ends are respectively pressed to disengage the insert blocks at both ends from the avoidance holes, and then the insert strips are respectively pulled out of the sockets to replace the sealing materials, thereby achieving efficient sealing, preventing fine impurities in the liquid from entering the gap between the floating seal ring and the floating seal seat, reducing damage to the floating seal ring, and increasing the service life of the floating seal ring. At the same time, the floating seal ring and the floating seal seat are fixed and not easy to loosen, thereby facilitating the replacement of the sealing material at a later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is an enlarged structural diagram of the utility model at A;

[0020] Figure 4 This is an enlarged structural diagram of point B of the utility model.

[0021] In the figure: 1 arc clamp 1, 2 arc clamp 2, 3 rotating shaft, 4 floating seal seat, 5 floating seal ring, 6 circular ring, 7 fixed installation mechanism, 71 insert strip, 72 insert hole, 73 slide groove, 74 telescopic rod, 75 spring, 76 slide plate, 77 avoidance hole, 78 insert block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] See also Figure 1-4 This embodiment provides a technical solution: a floating sealing assembly for a liquid valve, including an arc-shaped clamp 1 and a fixed installation mechanism 7.

[0024] Among them, the lower end of the arc clamp 1 is rotatably connected to the arc clamp 2 through the rotating shaft 3, the inner wall of the arc clamp 1 and the arc clamp 2 is clamped with a floating seal seat 4, the inner side of the floating seal seat 4 is respectively provided with left and right symmetrical floating seal rings 5, and circular rings 6 are respectively provided between the outside of the floating seal ring 5 and the inner side of the floating seal seat 4, and rubber sealing strips are provided between the inner side surfaces of the arc clamp 1 and the arc clamp 2 and the outer wall of the floating seal seat 4. The arc clamp 1 and the arc clamp 2 are both elastic steel belt clamps, and friction patterns are provided in the middle of the left and right side surfaces of the arc clamp 1 and the arc clamp 2.

[0025] Among them, the fixed installation mechanism 7 includes an insertion strip 71 and a socket 72, the rear side surface of the upper end of the arc-shaped clamp 2 is provided with a left-right symmetrical insertion strip 71, and the front side surface of the upper end of the arc-shaped clamp 1 is provided with a left-right symmetrical socket 72, and the insertion strips 71 are all installed in cooperation with adjacent sockets 72; the fixed installation mechanism 7 also includes a slide groove 73, a slide plate 76 and an insertion block 78, the rear end of the insertion strip 71 is respectively provided with a slide groove 73, the inside of the slide groove 73 is respectively slidably connected with a slide plate 76, and the middle part of the outer wall of the slide plate 76 is respectively fixedly connected with an insertion block 78, the fixed installation mechanism 7 also includes an avoidance hole 77, and the left and right sides of the upper end of the arc-shaped clamp 1 are respectively provided with avoidance holes 77, and the avoidance holes 77 are all installed in cooperation with adjacent insertion blocks 78; the fixed installation mechanism 7 also includes a telescopic rod 74 and a spring 75, the inner side surface of the slide plate 76 and the inner side wall of the slide groove 73 are respectively fixedly connected with the telescopic rod 74, and the outer side of the telescopic rod 74 is respectively sleeved with a spring 75.

[0026] The working principle of the utility model is as follows:

[0027] First, align the two floating seal seats 4, and then sleeve the outer walls of the two floating seal seats 4 with rubber sealing strips, then put the two rings 6 on the two floating seal seats 4, and then squeeze the floating seal rings 5 ​​on the outer surfaces of the two rings 6, and then sleeve the arc-shaped clamp 1 and the arc-shaped clamp 2 on the outside of the two floating seal seats 4;

[0028] Then, the insert strips 71 are respectively plugged into the adjacent sockets 72. When the insert strips 71 slide in the corresponding sockets 72, the plug blocks 78 at the front ends of the insert strips 71 slide to the avoidance holes 77. Under the rebound action of the telescopic rod 74 and the spring 75, the slide plates 76 are respectively pushed outward, thereby driving the plug blocks 78 to be plugged into the plug blocks 78, thereby fixing the floating seal seat 4 and preventing impurities in the liquid from entering the floating seal seat 4. When the internal sealing material needs to be replaced, the plug blocks 78 at both ends are respectively pressed to disengage the plug blocks 78 from the avoidance holes 77, and then the insert strips 71 are respectively pulled out from the sockets 72 to replace the sealing material.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A floating seal assembly for a liquid valve, characterized in that: It comprises an arc-shaped clamp (1) and a fixing and mounting mechanism (7); The lower end of the arc-shaped clamping hoop 1 (1) is rotatably connected to the arc-shaped clamping hoop 2 (2) via a rotating shaft (3); the inner wall of the arc-shaped clamping hoop 1 (1) and the arc-shaped clamping hoop 2 (2) as a whole is clamped with a floating seal seat (4); the inner side of the floating seal seat (4) is respectively provided with a left-right symmetrical floating seal ring (5); and a circular ring (6) is respectively provided between the outer side of the floating seal ring (5) and the inner side of the floating seal seat (4); The fixing and mounting mechanism (7) comprises an inserting strip (71) and an inserting hole (72); the rear side surface of the upper end of the arc-shaped clamp (2) is provided with a left-right symmetrical inserting strip (71); the front side surface of the upper end of the arc-shaped clamp (1) is provided with a left-right symmetrical inserting hole (72); and the inserting strips (71) are mounted in cooperation with adjacent inserting holes (72).

2. A floating seal assembly for a liquid valve according to claim 1, characterized in that: The fixed installation mechanism (7) further comprises a slide groove (73), a slide plate (76) and an insert block (78); the rear ends of the insert strips (71) are respectively provided with slide grooves (73); the interiors of the slide grooves (73) are respectively slidably connected with slide plates (76); and the middle portions of the outer side walls of the slide plates (76) are respectively fixedly connected with insert blocks (78).

3. A floating seal assembly for a liquid valve according to claim 2, characterized in that: The fixed installation mechanism (7) also includes an avoidance hole (77). The upper end left and right side surfaces of the arc-shaped clamp (1) are respectively provided with avoidance holes (77), and the avoidance holes (77) are installed in coordination with adjacent plug blocks (78).

4. A floating seal assembly for a liquid valve according to claim 2, characterized in that: The fixed installation mechanism (7) further comprises a telescopic rod (74) and a spring (75); the inner side surface of the slide plate (76) and the inner side wall of the slide groove (73) are respectively fixedly connected with the telescopic rod (74); and the outside of the telescopic rod (74) is respectively sleeved with a spring (75).

5. A floating seal assembly for a liquid valve according to claim 1, characterized in that: A rubber sealing strip is provided between the inner side surfaces of the arc-shaped clamp 1 (1) and the arc-shaped clamp 2 (2) and the outer wall of the floating seal seat (4).

6. A floating seal assembly for a liquid valve according to claim 1, characterized in that: The arc-shaped clamp 1 (1) and the arc-shaped clamp 2 (2) are both elastic steel band clamps.

7. A floating seal assembly for a liquid valve according to claim 1, characterized in that: Friction lines are provided in the middle of the left and right side surfaces of the arc-shaped clamp 1 (1) and the arc-shaped clamp 2 (2).

Images