CN216980245U

CN216980245U - Flange type porcelain bushing with good sealing performance

Info

Publication number: CN216980245U
Application number: CN202220036943.XU
Authority: CN
Inventors: 陈敏
Original assignee: Pingxiang Tongda Electric Porcelain Factory
Current assignee: Pingxiang Tongda Electric Porcelain Factory
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-07-15
Anticipated expiration: 2032-01-07

Abstract

The utility model discloses a flange type porcelain bushing with good sealing performance, which comprises a flange body, wherein the middle part of the bottom end of the flange body is fixedly connected with an outer sleeve, the inner side of the bottom end of the outer sleeve is fixedly connected with a U-shaped groove, a rubber ring is arranged in a groove at the upper end of the U-shaped groove, a backing ring is arranged at the position, located at the upper end of the rubber ring, of the inner side of the U-shaped groove, the inner side of the outer sleeve is in threaded connection with an external thread ring, and the left side and the right side of the upper end of the external thread ring are both fixedly connected with connecting rods. According to the utility model, the two rubber rings are plugged into the U-shaped groove in the outer sleeve, the rubber rings rotate through the fixing ring, the backing rings are adhered to the outer threaded rings, the backing rings are pushed downwards under the action of the outer threaded rings, the rubber rings are clamped in the U-shaped groove, the porcelain sleeve main body is moved downwards through the upper end of the outer sleeve, the porcelain sleeve main body is limited in the rubber tube for fixing, and the two flange bodies are fixed, so that the two porcelain sleeves are sealed and fixed.

Description

Flange type porcelain bushing with good sealing performance

Technical Field

The utility model relates to the field of flanges, in particular to a flange type porcelain bushing with good sealing performance.

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 at the inlet and outlet of the equipment for 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 together to form a combined sealing structure. The pipeline flange is a flange used for piping in a pipeline device, and is used on equipment to be an inlet and outlet flange of the equipment. The flanges are provided with holes, and the two flanges are tightly connected through bolts. The flanges are sealed with gaskets. The flange is divided into a threaded connection (screw thread connection) flange, a welding flange and a clamping flange. The flanges are used in pairs, the low-pressure pipeline can use threaded flanges, and the flanges are welded under the pressure of more than four kilograms. And a sealing gasket is arranged between the two flanges and then is fastened by bolts. The flanges of different pressures have different thicknesses and they use different bolts. When the water pump and the valve are connected with a pipeline, the parts of the equipment and equipment are also made into corresponding flange shapes, which are also called flange connection. The connecting parts which are connected by using bolts at the peripheries of two planes and are closed at the same time are generally called flanges, and for example, the connecting parts of the ventilating duct can be called flange parts. However, the connection is only a part of equipment, such as the connection between a flange and a water pump, and the water pump is not easy to be called as a flange part. The valve is relatively small, such as a valve and the like, and can be called as a flange part.

Chinese patent document CN202221681U relates to the field of electrical appliances, relates to switch accessories, and in particular to a flange of a porcelain bushing, which comprises a flange body, wherein the flange body is provided with a structure covering the end part and the periphery of the porcelain bushing, the structure covering the end part and the periphery of the porcelain bushing is a cavity structure, the cavity structure is also internally provided with an anti-twisting bulge, the anti-twisting bulge is provided with a corner structure, and the anti-twisting bulge is rectangular. The flange mounting of the patent has the advantages of more firmness in mounting and no occurrence of twisting movement on a switch, but has the problem of insufficient connection sealing property of two porcelain sleeves after mounting.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a flange type porcelain bushing with good sealing performance.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a flange formula insulator that sealing performance is good, includes the flange body, flange body bottom middle part fixedly connected with overcoat, the inboard fixedly connected with U type groove in bottom of overcoat, be provided with the rubber ring in the recess of U type groove upper end, the upper end position that the inboard side in U type groove is located the rubber ring is provided with the backing ring, the inboard threaded connection of overcoat has the external screw thread ring, the equal fixedly connected with connecting rod in upper end left and right sides of external screw thread ring, the solid fixed ring's of top fixed connection bottom left and right sides of connecting rod, the rubber ring is located the one end fixedly connected with rubber tube in the U type groove outside, the rubber tube inboard is provided with the upper end block of insulator main part and puts between the inboard U type groove of overcoat.

As a further description of the above technical solution:

the outer surface of the U-shaped groove is wrapped by silica gel.

As a further description of the above technical solution:

the hole of the flange body is arranged outside the outer ring of the fixing ring.

As a further description of the above technical solution:

the outer sleeve is made of steel.

As a further description of the above technical solution:

the diameter of the fixing ring is smaller than the diameter of the section of the flange body.

As a further description of the above technical solution:

the outer side of the fixing ring is provided with sealing rubber.

The utility model has the following beneficial effects:

according to the utility model, firstly, two rubber rings are plugged into a U-shaped groove in the outer sleeve, the rubber rings rotate through the fixing ring, the backing rings are adhered to the outer thread rings, the backing rings are pushed downwards under the action of the outer thread rings, the rubber rings are clamped in the U-shaped groove, then the porcelain bushing main body moves downwards through the upper end of the outer sleeve, the porcelain bushing main body is limited in the rubber tube for fixing, and the two flange bodies are fixed, so that the two porcelain bushings are sealed and fixed.

Drawings

FIG. 1 is a perspective view of a flange-type porcelain bushing with good sealing performance according to the present invention;

FIG. 2 is a cross-sectional view of a flange type porcelain bushing with good sealing performance according to the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

Illustration of the drawings:

1. a fixing ring; 2. a connecting rod; 3. a flange body; 4. a jacket; 5. an externally threaded ring; 6. a backing ring; 7. a U-shaped groove; 8. a rubber ring; 9. a rubber tube; 10. a porcelain bushing main body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being capable of being fixedly connected, also capable of being detachably connected, or integrally connected; can be a mechanical connection, but also an electrical connection; can be directly connected or indirectly connected through intervening media, and can communicate between the two elements. The specific meanings of the above terms in the present invention can be understood in a specific case by those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: a flange type porcelain bushing with good sealing performance comprises a flange body 3, an outer bushing 4 is fixedly connected to the middle of the bottom end of the flange body 3, a U-shaped groove 7 is fixedly connected to the inner side of the bottom end of the outer bushing 4, two porcelain bushings can be connected together through the flange body 3, a rubber pipe 9 can be limited through the U-shaped groove 7, a rubber ring 8 is arranged in a groove in the upper end of the U-shaped groove 7, the rubber ring 8 is clamped under the action of an external thread ring 5 through the rubber ring 8, a backing ring 6 is arranged at the upper end position, located at the inner side of the U-shaped groove 7, of the rubber ring 8, the backing ring 6 is used for reducing a gap between the external thread ring 5 and the rubber ring 8 and improving the sealing performance, an external thread ring 5 is connected to the inner side of the outer bushing 4 in a threaded manner, connecting rods 2 are fixedly connected to the left side and the right side of the upper end of the external thread ring 5, the top end of the connecting rods 2 is fixedly connected to the left side and the bottom end of a fixing ring 1, the connecting rods 2 can be moved downwards by rotating the fixing ring 1, thereby in moving into U type groove 7 with external screw thread ring 5, rubber ring 8 is located the one end fixedly connected with rubber tube 9 in the U type groove 7 outside, and the rubber tube 9 inboard is provided with position between the U type groove 7 of overcoat 4 inboard upper end block of insulator main part 10 and insulator main part 10, supports spacing with insulator main part 10 through rubber tube 9 and U type groove 7.

The surface in U type groove 7 is wrapped up by silica gel, reduce the gap of U type groove 7 and rubber ring 8, realize sealed effect, the hole setting of flange body 3 is outside at solid fixed ring 1's outer lane, pass through bolted connection back with two flange bodies 3, gu fixed ring 1 can the laminating together, the material of overcoat 4 is the steel, increase overall structure's stability, gu fixed ring 1's diameter is less than flange body 3's cross-sectional diameter, gu fixed ring 1 is surrounded in flange body 3 by flange body 3, gu fixed ring 1 is provided with sealing rubber for the outside, after two solid fixed ring 1 laminating, gu the gap between fixed ring 1 laminates.

The working principle is as follows: through on stuffing two rubber rings 8 into U type groove 7 in overcoat 4, it is rotatory through solid fixed ring 1, be stained with through backing ring 6 and glue on outer screw ring 5, promote backing ring 6 downwards under outer screw ring 5's effect, with the position centre gripping of rubber ring 8 in U type groove 7, move down the upper end of porcelain bushing main part 10 through overcoat 4 again, it is spacing fixed in rubber tube 9 with porcelain bushing main part 10, through fixing two flange bodies 3, thereby realize two sealed fixed effects of porcelain bushing.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a flange formula insulator that sealing performance is good, includes flange body (3), its characterized in that: the middle part of the bottom end of the flange body (3) is fixedly connected with an outer sleeve (4), the inner side of the bottom end of the outer sleeve (4) is fixedly connected with a U-shaped groove (7), a rubber ring (8) is arranged in a groove at the upper end of the U-shaped groove (7), a backing ring (6) is arranged at the position, located at the upper end of the rubber ring (8), on the inner side of the U-shaped groove (7), the inner side of the outer sleeve (4) is in threaded connection with an external thread ring (5), the left side and the right side of the upper end of the external thread ring (5) are both fixedly connected with a connecting rod (2), the top end of the connecting rod (2) is fixedly connected with the left side and the right side of the bottom end of the fixing ring (1), one end of the rubber ring (8) positioned at the outer side of the U-shaped groove (7) is fixedly connected with a rubber pipe (9), the inner side of the rubber tube (9) is provided with a porcelain bushing main body (10), and the upper end of the porcelain bushing main body (10) is clamped between the U-shaped grooves (7) on the inner side of the outer sleeve (4).

2. The flange type porcelain bushing with good sealing performance according to claim 1, wherein: the outer surface of the U-shaped groove (7) is wrapped by silica gel.

3. The flange type porcelain bushing with good sealing performance according to claim 1, is characterized in that: the hole of the flange body (3) is arranged outside the outer ring of the fixing ring (1).

4. The flange type porcelain bushing with good sealing performance according to claim 1, is characterized in that: the outer sleeve (4) is made of steel.

5. The flange type porcelain bushing with good sealing performance according to claim 1, is characterized in that: the diameter of the fixing ring (1) is smaller than the diameter of the section of the flange body (3).

6. The flange type porcelain bushing with good sealing performance according to claim 1, is characterized in that: the outer side of the fixing ring (1) is provided with sealing rubber.