Connector flange easy to maintain

Abstract

The connector flange easy to maintain comprises an upper flange, a nut and a sealing gasket, the nut is arranged on the outer side of the upper flange, a supporting rod is arranged on the inner side of the nut, a first outer flange hole is formed in the inner side of the upper end of the upper flange, an embedded groove is formed in the middle of the upper end of the upper flange, and the sealing gasket is arranged in the embedded groove. A plurality of sets of inner flange holes are formed in the embedded groove, a sealing shell is arranged in the middle of the lower end of the upper flange, a lower flange is arranged at the lower end of the sealing shell, and a second outer flange hole is formed in the outer side of the lower flange. The utility model has the following beneficial effects: the upper flange and the lower flange are supported and connected by using a plurality of groups of support rods, the upper flange and the sealing shell are hermetically embedded and connected by using the sealing piston ring, and the embedding teeth on the outer side of the embedding head are hermetically embedded and connected with the embedded tooth groove; and the sealing gasket and the lower flange are fixed by using an external long bolt.

Description

Technical Field

[0001] The utility model belongs to the technical field of joint flanges and relates to a joint flange which is easy to maintain. Background Art

[0002] The joint flange is a commonly used connection component in machinery and equipment. Its pressure maintenance and sealing are crucial to the normal operation of the equipment. At the same time, the joint flange needs to be pressure maintained during use, and the flange needs to be sealed and then pressure tested. Through pressure testing, the sealing performance of the flange joint under a certain pressure can be tested to ensure that it can maintain reliable sealing performance under working conditions, thereby ensuring that the fluid does not leak. At the same time, in the pressure test, by applying a certain pressure to the flange joint, it can be tested whether its strength and rigidity meet the requirements. If the flange joint is deformed or leaks during the test, it means that its strength and rigidity may be insufficient. If the joint flange cannot be quickly sealed during the pressure maintenance process, it may cause a series of problems.

[0003] First, leakage will cause medium loss and affect the process flow. In chemical reaction processes, fluid transportation or thermal pipe networks, slow leakage at the flange may cause a large amount of medium loss, which not only increases operating costs but also may pollute the environment.

[0004] Secondly, leakage may lead to a decline in equipment performance. If the flange cannot be effectively sealed, the high-pressure or high-temperature medium inside the equipment may gradually leak out, which will not only affect the performance of the equipment, but may also cause equipment failure in serious cases.

[0005] Furthermore, flange leakage may cause safety problems. In some high-pressure, flammable or corrosive media environments, slow flange leakage may become a safety hazard. Small leaks over a long period of time may cause major accidents.

[0006] In addition, flange sealing problems may also affect the maintenance and life of the equipment. Frequent inspection and maintenance may be required due to the leakage of the medium, which undoubtedly increases the complexity of operation. At the same time, long-term small leakage may also cause corrosion or damage to equipment components, thus affecting the overall life of the equipment.

[0007] In summary, if the joint flange cannot be quickly sealed during pressure maintenance, it will cause a series of problems such as medium loss, equipment performance degradation, safety hazards, increased maintenance costs, and affected equipment life. Therefore, there is an urgent need for a joint flange that is easy to maintain to solve the above problems. Utility Model Content

[0008] In view of the deficiencies in the prior art, the utility model aims to provide a joint flange that is easy to maintain and solve the problems raised in the above-mentioned background technology.

[0009] The utility model is realized by the following technical scheme: a joint flange with easy maintenance, comprising: an upper flange, a nut and a sealing gasket, wherein a nut is arranged on the outer side of the upper flange;

[0010] A support rod is provided on the inner side of the nut, an outer flange hole 1 is provided on the inner side of the upper end of the upper flange, an inner groove is provided at the middle position of the upper end of the upper flange, a plurality of groups of inner flange holes are provided inside the inner groove, a sealing shell is provided at the middle position of the lower end of the upper flange, a lower flange is provided at the lower end of the sealing shell, and an outer flange hole 2 is provided on the outer side of the lower flange;

[0011] A lower seat is provided at the lower end of the lower flange, an internal fixing hole is provided inside the lower seat, a flange base is provided at the lower end of the lower seat, a fitting column is provided at the lower end of the flange base, an internal tooth groove is provided on the inner side of the middle position of the fitting column, an insert head is provided inside the internal tooth groove, a sealing plug seat is provided at the lower end of the insert head, and a sealing gasket is provided at the lower end of the sealing plug seat.

[0012] As a preferred embodiment, the upper flange and the lower flange have the same specifications, a plurality of groups of connecting bosses are provided on the outer side of the upper flange, and external embedding holes are provided inside the plurality of groups of connecting bosses. The upper flange and the lower flange are connected by a plurality of groups of support rods and a group of sealing shells, and the upper flange and the lower flange can be supported and connected by a plurality of groups of support rods.

[0013] As a preferred embodiment, a sealing piston ring is provided on the outer side of the lower end of the flange base, and the flange base at the lower end of the upper flange is movably sealed and engaged with the upper end of the sealing shell, and the sealing piston ring can be used to seal and engage the upper flange and the sealing shell.

[0014] As a preferred embodiment, a group of sealing gaskets are provided at the upper end and the lower end of the upper flange, and the upper flange and the external connecting flange are connected and fixed to the inside by a plurality of groups of bolts penetrating the outer flange hole.

[0015] As a preferred embodiment, the outer side of the embedded head is provided with engaging teeth, and the outer side of the engaging teeth is provided with a sealing rubber layer. The inner tooth groove at the lower end of the lower flange and the embedded head are sealed and engaged with each other, and can be sealed and engaged with the inner tooth groove through the engaging teeth on the outer side of the embedded head.

[0016] As a preferred embodiment, the insert head and the sealing plug seat are an integrated structure, and the sealing plug seat is sealingly embedded and connected to the lower end of the embedding column.

[0017] As a preferred embodiment, the sealing gasket is made of a metal material, and a bolt hole is provided inside the sealing gasket. External long bolts penetrate the bolt hole and the internal fixing hole at the same time and connect and fix the sealing gasket to the lower flange. The sealing gasket can be fixed to the lower flange by the external long bolts.

[0018] After adopting the above technical scheme, the beneficial effects of the utility model are: by using several groups of support rods to support and connect the upper flange and the lower flange, by using a sealing piston ring to seal and engage the upper flange with the sealing shell, by using the engaging teeth on the outside of the insert head to seal and engage with the internal tooth grooves, and by using external long bolts to fix the sealing gasket to the lower flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a front view structural schematic diagram of a joint flange that is easy to maintain according to the utility model;

[0021] Figure 2 This is a schematic diagram of the bottom side structure of the lower flange in a joint flange that is easy to maintain according to the utility model;

[0022] Figure 3 This is a top view of the interior of a sealing shell in a joint flange that is easy to maintain according to the utility model;

[0023] Figure 4 This is a side view of the structure of an embedded head in a joint flange that is easy to maintain according to the utility model;

[0024] In the figure: 100-upper flange, 110-nut, 120-support rod, 130-external flange hole one, 140-inner embedded groove, 150-inner flange hole, 160-sealing shell, 170-lower flange, 180-external flange hole two, 190-flange base, 200-external embedded hole, 210-lower embedded seat, 220-inner fixing hole, 230-embedded column, 240-inner embedded tooth groove, 250-inner cavity, 260-embedded head, 270-sealing plug seat, 280-sealing gasket. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 , a joint flange with easy maintenance, comprising: an upper flange 100, a nut 110 and a sealing gasket 280, wherein the nut 110 is arranged on the outer side of the upper flange 100;

[0027] A support rod 120 is provided on the inner side of the nut 110, an outer flange hole 130 is provided on the inner side of the upper end of the upper flange 100, an inner groove 140 is provided at the middle position of the upper end of the upper flange 100, and a plurality of groups of inner flange holes 150 are provided inside the inner groove 140, a sealing shell 160 is provided at the middle position of the lower end of the upper flange 100, a lower flange 170 is provided at the lower end of the sealing shell 160, and an outer flange hole 2 180 is provided on the outer side of the lower flange 170;

[0028] A lower seat 210 is provided at the lower end of the lower flange 170, an internal fixing hole 220 is provided inside the lower seat 210, a flange base 190 is provided at the lower end of the lower seat 210, a mosaic column 230 is provided at the lower end of the flange base 190, an inner tooth groove 240 is provided on the inner side of the middle position of the mosaic column 230, an embedding head 260 is provided inside the inner tooth groove 240, a sealing plug seat 270 is provided at the lower end of the embedding head 260, and a sealing gasket 280 is provided at the lower end of the sealing plug seat 270.

[0029] The upper flange 100 and the lower flange 170 have the same specifications. A plurality of connecting bosses are provided on the outer side of the upper flange 100. External embedding holes 200 are provided inside the plurality of connecting bosses. The upper flange 100 and the lower flange 170 are connected by a plurality of supporting rods 120 and a sealing shell 160. The upper flange 100 and the lower flange 170 can be supported and connected by a plurality of supporting rods.

[0030] A sealing piston ring is provided on the outer side of the lower end of the flange base 190, and the flange base 190 at the lower end of the upper flange 100 is movably sealed and engaged with the upper end of the sealing shell 160, and the upper flange 100 and the sealing shell 160 can be sealed and engaged through the sealing piston ring.

[0031] A set of sealing gaskets are provided at the upper end and the lower end of the upper flange 100. The upper flange 100 and the external connecting flange are connected and fixed to the inside of the external flange hole 130 by a plurality of sets of bolts penetrating through them.

[0032] The outer side of the embedded head 260 is provided with an engaging tooth, and the outer side of the engaging tooth is provided with a sealing rubber layer. The inner tooth groove 240 at the lower end of the lower flange 170 and the embedded head 260 are sealed and engaged with each other, and can be sealed and engaged with the inner tooth groove 240 through the engaging teeth on the outer side of the embedded head 260.

[0033] The insert head 260 and the sealing plug seat 270 are an integrated structure, and the sealing plug seat 270 is sealed and connected to the lower end of the insert column 230.

[0034] The sealing gasket 280 is made of a metal material and is provided with a bolt hole inside. External long bolts penetrate the bolt hole and the internal fixing hole 220 at the same time and connect and fix the sealing gasket 280 to the lower flange 170. The sealing gasket 280 can be fixed to the lower flange 170 by the external long bolts.

[0035] See also Figure 1-Figure 4 As the first embodiment of the utility model: In order to solve the problem that the flange cannot be effectively sealed due to the long-term pressure maintenance of the joint flange, the high-pressure or high-temperature medium inside the equipment may gradually leak, which will not only affect the performance of the equipment, but may also cause equipment failure in serious cases. First, before the joint flange needs to be pressure-maintained and tested, the staff inserts the embedded head 260 into the embedded tooth groove 240. Since the outer side of the embedded head 260 is provided with a chimeric tooth, and the outer side of the chimeric tooth is provided with a sealing rubber layer, the embedded tooth groove 240 at the lower end of the lower flange 170 and the embedded head 260 are sealed and chiseled with each other, and can be sealed and chiseled with the embedded tooth groove 240 through the chimeric teeth on the outer side of the embedded head 260. At the same time, the staff uses a long bolt to penetrate the internal fixing hole 220 and the bolt hole, and connects and fixes the sealing gasket 280 to the lower flange 170, so as to complete the sealing of the lower end of the lower flange 170. Then, after the staff seals and connects the external pressure release pipe to the upper flange 100, the pressure maintenance test can be completed.

[0036] See also Figure 1-Figure 4 , as the second embodiment of the utility model: based on the elaboration in the above embodiments, further, when performing pressure maintenance detection and using in a high-pressure environment for a long time, since the upper flange 100 and the lower flange 170 are connected by a plurality of groups of support rods 120 and a group of sealing shells 160, when the high-pressure fluid and gas pass through the upper flange 100 and the lower flange 170, the plurality of groups of support rods 120 and the sealing shell 160 can support the pressure between the upper flange 100 and the lower flange 170, thereby ensuring the normal use of the upper flange 100 and the lower flange 170. At the same time, since the upper flange 100 and the lower flange 170 have the same specifications, during the pressure maintenance detection, the multiple joint flanges can be quickly and easily spliced ​​together for detection, which can effectively improve the work efficiency of maintenance detection.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A joint flange with easy maintenance, comprising: An upper flange (100), a nut (110) and a sealing gasket (280), characterized in that a nut (110) is provided on the outer side of the upper flange (100); A support rod (120) is provided on the inner side of the nut (110); an outer flange hole (130) is provided on the inner side of the upper end of the upper flange (100); an inner groove (140) is provided at the middle position of the upper end of the upper flange (100); a plurality of groups of inner flange holes (150) are provided inside the inner groove (140); a sealing shell (160) is provided at the middle position of the lower end of the upper flange (100); a lower flange (170) is provided at the lower end of the sealing shell (160); and an outer flange hole (180) is provided on the outer side of the lower flange (170); A lower insert seat (210) is provided at the lower end of the lower flange (170), an inner fixing hole (220) is provided inside the lower insert seat (210), a flange base (190) is provided at the lower end of the lower insert seat (210), a chimeric column (230) is provided at the lower end of the flange base (190), an inner tooth groove (240) is provided on the inner side of the middle position of the chimeric column (230), an insert head (260) is provided inside the inner tooth groove (240), a sealing plug seat (270) is provided at the lower end of the insert head (260), and a sealing gasket (280) is provided at the lower end of the sealing plug seat (270).

2. The joint flange with easy maintenance according to claim 1, characterized in that: The upper flange (100) and the lower flange (170) have the same specifications. A plurality of groups of connecting protrusions are provided on the outer side of the upper flange (100). External embedding holes (200) are provided inside the plurality of groups of connecting protrusions. The upper flange (100) and the lower flange (170) are connected via a plurality of groups of support rods (120) and a group of sealing shells (160).

3. The easy-to-maintain joint flange according to claim 1, characterized in that: A sealing piston ring is provided on the outer side of the lower end of the flange base (190), and the flange base (190) at the lower end of the upper flange (100) is movably sealed and engaged with the upper end of the sealing shell (160).

4. The easy-to-maintain joint flange according to claim 2, characterized in that: A group of sealing gaskets are provided at the upper end and the lower end of the upper flange (100), and the upper flange (100) and the external connecting flange are connected and fixed inside by a plurality of groups of bolts penetrating through the first hole (130) of the external flange.

5. The easy-to-maintain joint flange according to claim 1, characterized in that: The outer side of the embedding head (260) is provided with an engaging tooth, and the outer side of the engaging tooth is provided with a sealing rubber layer. The inner embedding tooth groove (240) at the lower end of the lower flange (170) and the embedding head (260) are sealed and embedded in each other.

6. The easy-to-maintain joint flange according to claim 5, characterized in that: The insert head (260) and the sealing plug seat (270) are an integrated structure, and the sealing plug seat (270) is sealed and embedded with the lower end of the embedding column (230).

7. The joint flange with easy maintenance according to claim 6, characterized in that: The sealing gasket (280) is made of a metal material. A bolt hole is provided inside the sealing gasket (280). An external long bolt penetrates the bolt hole and the internal fixing hole (220) at the same time to connect and fix the sealing gasket (280) to the lower flange (170).

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