CN213808834U

CN213808834U - Waterproof fixing structure for flange

Info

Publication number: CN213808834U
Application number: CN202022878678.3U
Authority: CN
Inventors: 纪卫忠
Original assignee: Zhangjiagang Maoshun Machinery Co ltd
Current assignee: Zhangjiagang Maoshun Machinery Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-27
Anticipated expiration: 2030-12-03

Abstract

The utility model relates to the technical field of flange mounting, in particular to a waterproof fixing structure for flanges, which solves the defects existing in the prior art and comprises a first flange and a second flange, wherein the bottom of the first flange is fixedly provided with an annular connecting seat, a step sealing block is fixed on the outer peripheral surface of the connecting seat through a countersunk screw, an annular groove is formed in the bottom of the connecting seat, a sliding rod is arranged in the first flange in a sliding manner, and the end part of the sliding rod is provided with a steel ball; the mounting groove has been seted up at the top of second flange, be equipped with on the lateral wall of mounting groove with the corresponding ladder face of sealed piece of ladder through the setting of connecting seat, the sealed piece of ladder, mounting groove and ladder face isotructure, after the installation, has adopted sealing strip and the sealed double seal of ladder between two flanges, can improve the installation leakproofness of flange widely to can play better waterproof effect, promote the practicality of flange.

Description

Waterproof fixing structure for flange

Technical Field

The utility model relates to a flange mounting technical field especially relates to a waterproof fixed knot constructs for flange.

Background

A flange, also known as a flange collar or flange. The flange is a part for connecting the shafts and is used for connecting pipe ends; there are also flanges on the inlet and outlet of the equipment for the connection between two pieces of equipment, such as reducer flanges. The flange connection or flange joint is a detachable connection which is formed by connecting a flange, a gasket and a bolt with each other to form a group of combined sealing structures.

The flange in the prior art has the following defects after installation and connection: firstly, seal structure is single, can not play better water-proof effects, secondly easily not hard up the clearance of appearing between the flange after long-term the use, life is shorter.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a waterproof fixing structure for a flange.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a waterproof fixing structure for a flange comprises a first flange and a second flange, wherein an annular connecting seat is fixedly arranged at the bottom of the first flange, a step sealing block is fixed on the outer peripheral surface of the connecting seat through a sunk screw, an annular groove is formed in the bottom of the connecting seat, a sliding rod is arranged in the first flange in a sliding mode, and a steel ball is arranged at the end of the sliding rod;

the mounting groove has been seted up at the top of second flange, be equipped with on the lateral wall of mounting groove with the corresponding ladder face of sealed piece of ladder, and it has the sealing strip to bond through the adhesive on the mounting groove, be equipped with the depressed part on the sealing strip respectively and bend the portion, the inside of second flange slides and is provided with the briquetting, the tip of briquetting with the close contact is pasted to one side of the portion of bending.

Preferably, the first flange and the connecting seat are of an integrally formed structure.

Preferably, a first inner groove is formed in the first flange, a first annular pressing plate is connected to the inside of the first inner groove in a sliding mode, and the sliding rod is fixedly connected with the first annular pressing plate.

Preferably, the outer portion of the sliding rod is sleeved with a first spring, and two ends of the first spring are fixedly connected with the first annular pressing plate and the bottom wall of the first inner groove through buckles respectively.

Preferably, the bottom welding of briquetting has the second ring clamp, and the outside cover of briquetting is equipped with the second spring, and the inside of second flange has seted up the second inside groove and the through-hole that are linked together in proper order, the briquetting embedding is in the inside of through-hole, and the both ends of second spring are respectively through buckle and the roof and the second ring clamp fixed connection of second inside groove.

Preferably, the inner wall of the first inner groove is welded with a guide plate, a guide hole is formed in the guide plate, and the slide rod is embedded in the guide hole.

The utility model has the advantages that:

1. the utility model discloses in through the setting of connecting seat, the sealed piece of ladder, mounting groove and ladder face isotructure, after the installation, adopted the sealed double seal of sealing strip and ladder between two flanges, can improve the installation leakproofness of flange widely to can play better water-proof effects, promote the practicality of flange.

2. The utility model discloses in through the setting of depressed part, the portion of bending, briquetting, steel ball isotructure, after long-term the use, if not hard up the clearance of appearing between two flanges, the steel ball that the annular distributes and the briquetting can both be further to sealed the pad extrusion under the effort of spring for sealed pad compresses tightly this gap and fills up, continuously keeps the leakproofness, has prolonged its life.

Drawings

Fig. 1 is a schematic view of a waterproof fixing structure for flanges according to the present invention before installation;

fig. 2 is a schematic diagram of the waterproof fixing structure for flanges after installation;

fig. 3 is the utility model provides a waterproof fixed knot constructs for flange's reference numeral A department enlargedly.

In the figure: the sealing device comprises a first flange 1, a second flange 2, a connecting seat 3, a groove 31, a stepped sealing block 4, a guide plate 5, a first annular pressing plate 6, a first spring 7, a sliding rod 8, a steel ball 9, a concave part 10, a sealing strip 11, a bending part 12, a second annular pressing plate 13, a pressing block 14 and a second spring 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a waterproof fixing structure for a flange comprises a first flange 1 and a second flange 2, wherein an annular connecting seat 3 is fixedly arranged at the bottom of the first flange 1, a stepped sealing block 4 is fixed on the outer peripheral surface of the connecting seat 3 through a countersunk head screw, an annular groove 31 is formed in the bottom of the connecting seat 3, a sliding rod 8 is slidably arranged in the first flange 1, and a steel ball 9 is arranged at the end of the sliding rod 8; the mounting groove has been seted up at the top of second flange 2, is equipped with the ladder face corresponding with sealed piece 4 of ladder on the lateral wall of mounting groove, and bonds through the adhesive on the mounting groove and have sealing strip 11, is equipped with depressed part 10 and the portion of bending 12 on the sealing strip 11 respectively, and the inside of second flange 2 slides and is provided with briquetting 14, and the tip of briquetting 14 pastes the close contact with one side of the portion of bending 12.

Wherein, through connecting seat 3, ladder seal block 4, the setting of mounting groove and ladder face isotructure, after the installation, sealing strip 11 and the sealed double seal of ladder have been adopted between two flanges, can improve the installation leakproofness of flange widely, thereby can play better waterproof effect, the practicality of flange has been promoted, through depressed part 10, the portion 12 of bending, briquetting 14, the setting of steel ball 9 isotructure, after long-term the use, if not hard up the clearance that appears between two flanges, steel ball 9 and the briquetting 14 of cyclic annular distribution can both further to sealed the pad extrusion under the effort of spring, make sealed pad compress tightly this gap and fill up, continuously keep the leakproofness, the life thereof has been prolonged.

First flange 1 is the integrated into one piece structure with connecting seat 3, first inside groove has been seted up to the inside of first flange 1, the inside sliding connection of first inside groove has first annular clamp plate 6, slide bar 8 and first annular clamp plate 6 fixed connection, the outside cover of slide bar 8 is equipped with first spring 7, the both ends of first spring 7 are respectively through the diapire fixed connection of buckle with first annular clamp plate 6 and first inside groove, second annular clamp plate 13 has been welded to the bottom of briquetting 14, the outside cover of briquetting 14 is equipped with second spring 15, the inside second inside groove and the through-hole that are linked together have been seted up in proper order to the second flange 2, briquetting 14 imbeds in the inside of through-hole, the both ends of second spring 15 are respectively through buckle and the roof and the second annular clamp plate 13 fixed connection of second inside groove, the inner wall welding of first inside groove has deflector 5, the guiding hole has been seted up to the inside of deflector 5, slide bar 8 imbeds in the inside of guiding hole.

In the embodiment, when the flange piece is used, the first flange 1 and the second flange 2 are correspondingly installed, the connecting seat 3 of the first flange 1 is inserted into the installation groove on the second flange 2, the step sealing block 4 is aligned with the corresponding step surface, and the sealing strip 11 is tightly pressed by the connecting seat 3 and the step sealing block 4, as shown in fig. 2, double sealing is provided by the sealing strip 11 and the step structure, so that the waterproof effect is good;

further, after the two flanges are loosened by using external bolts and nuts for a long time, gaps appear between the flanges, at the moment, the first annular pressing plate 6 and the second annular pressing plate 13 move under the elastic force pulling of the first spring 7 and the second spring 15 respectively, then the sealing strip 11 is extruded, the concave part 10 and the bending part 12 are further pressed, the gaps between the concave part and the bending part are filled, and the sealing performance is continuously kept.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A waterproof fixing structure for a flange comprises a first flange (1) and a second flange (2), and is characterized in that an annular connecting seat (3) is fixedly arranged at the bottom of the first flange (1), a step sealing block (4) is fixed on the outer peripheral surface of the connecting seat (3) through a sunk screw, an annular groove (31) is formed in the bottom of the connecting seat (3), a sliding rod (8) is arranged in the first flange (1) in a sliding mode, and a steel ball (9) is arranged at the end of the sliding rod (8);

the mounting groove has been seted up at the top of second flange (2), be equipped with on the lateral wall of mounting groove with the corresponding ladder face of ladder seal block (4), and it has sealing strip (11) to bond through the adhesive on the mounting groove, be equipped with on sealing strip (11) depressed part (10) and portion of bending (12) respectively, the inside slip of second flange (2) is provided with briquetting (14), the tip of briquetting (14) with the tight contact is pasted to one side of the portion of bending (12).

2. The waterproof fixing structure for the flange according to claim 1, wherein the first flange (1) and the connecting seat (3) are of an integrally formed structure.

3. The waterproof fixing structure for the flange according to claim 1, wherein a first inner groove is formed in the first flange (1), a first annular pressing plate (6) is slidably connected to the inner portion of the first inner groove, and the sliding rod (8) is fixedly connected with the first annular pressing plate (6).

4. A waterproof fixing structure for flanges according to claim 3, characterized in that the sliding rod (8) is sleeved with a first spring (7), and two ends of the first spring (7) are respectively fixedly connected with the first annular pressing plate (6) and the bottom wall of the first inner groove through a buckle.

5. The waterproof fixing structure for the flange according to claim 1, wherein a second annular pressing plate (13) is welded at the bottom of the pressing block (14), a second spring (15) is sleeved outside the pressing block (14), a second inner groove and a through hole which are communicated with each other are sequentially formed inside the second flange (2), the pressing block (14) is embedded inside the through hole, and two ends of the second spring (15) are fixedly connected with the top wall of the second inner groove and the second annular pressing plate (13) through buckles respectively.

6. The waterproof fixing structure for a flange according to claim 3, wherein a guide plate (5) is welded to an inner wall of the first inner tank, a guide hole is formed in the guide plate (5), and the slide bar (8) is embedded in the guide hole.