Metal corrugated pipe with stable support

Abstract

The utility model discloses a metal corrugated pipe with a stable support, which relates to the field of metal corrugated pipes and comprises a metal corrugated pipe main body, a flange plate is mounted at the bottom of the metal corrugated pipe main body, a positioning block is fixedly connected to the outer wall of the flange plate, an insertion rod is mounted in the positioning block, and the insertion rod is fixedly connected with the flange plate. The metal corrugated pipe comprises a metal corrugated pipe body, flange plates are fixedly connected to the two ends of the metal corrugated pipe body, inserting rods are fixedly connected to the flange plates, sliding blocks are fixedly connected to one ends of the inserting rods, sleeves are movably connected to the outer walls of the sliding blocks, supporting rods are fixedly connected to the outer walls of the sleeves, and protection plates are fixedly connected to one ends of the supporting rods. The sliding blocks can slide along the sleeves, the inserting rods are released, under the action of the springs, the sliding blocks can slide along the sleeves, the inserting rods are driven to be inserted into the positioning blocks to be limited, the other two sets of inserting rods are installed in a similar way, and the effect of conveniently supporting the middle position of the metal corrugated pipe body during extension and stretching is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of metal bellows, specifically to a metal bellows with stable support. BACKGROUND

[0002] Metal bellows is a kind of metal pipe fittings with corrugated shape, it has many unique properties and extensive application, its most remarkable feature is that the pipe wall is regular corrugated shape. These corrugations can be annular or spiral. The existence of corrugation enables metal bellows to have certain displacement compensation capacity in axial, lateral or angular direction, the current metal bellows will produce sag deformation in the middle part when the axial displacement distance is larger, thus a metal bellows with stable support is required.

[0003] The existing metal bellows is inconvenient to stably support the middle part of the bellows when being used, which leads to the deformation of the middle part due to the large axial displacement distance, affects the service life of the metal bellows, and the corrosion resistance of the inner wall of the current metal bellows is poor, so there is an urgent need for a metal bellows with stable support. SUMMARY

[0004] Therefore, the utility model aims at providing a metal bellows with stable support to solve the problems of inconvenient stable support of the middle part of the bellows and poor corrosion resistance of the existing metal bellows.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a metal bellows with stable support, comprising a metal bellows body, a flange plate is installed at the bottom of the metal bellows body, a positioning block is fixedly connected to the outer wall of the flange plate, a plug rod is installed in the positioning block, a sliding block is fixedly connected to one end of the plug rod, a sleeve is movably connected to the outer wall of the sliding block, a support rod is fixedly connected to the outer wall of the sleeve, and a protective plate is fixedly connected to one end of the support rod.

[0006] An oplastic thermal insulation layer is fixedly connected to the inner wall of the metal bellows body, and a rubber coating is fixedly connected to the inner wall of the oplastic thermal insulation layer.

[0007] Preferably, the positioning block is arranged in a ring shape around the central axis of the flange plate, and the positioning block is designed as an open type.

[0008] Preferably, the sliding block and the sleeve form a sliding structure, and a spring is fixedly connected to the outer wall of the sliding block.

[0009] Preferably, the plug rod is connected to the positioning block in a clamping manner, and the plug rod and the support rod are distributed vertically.

[0010] Preferably, the metal bellows body is tightly attached with the rubber plastic thermal insulation layer, and the rubber plastic thermal insulation layer is tightly attached with the rubber coating.

[0011] Preferably, the rubber plastic thermal insulation layer is arranged between the metal bellows body and the rubber coating, and the metal bellows body and the rubber coating are arranged in parallel.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The utility model discloses a metal bellows body, flange plate, positioning block, plug rod, sliding block, sleeve and protection board are set up, and the flange plate of metal bellows body both ends is connected with the flange of conveying pipeline respectively, and the two plug rods are extruded simultaneously, can make the sliding block along the sleeve sliding, and the plug rod is released, under the action of spring, can make the sliding block along the sleeve sliding, and drive the plug rod to insert into the limiting of positioning block, and the remaining two groups of plug rods are installed, and three protection boards are used for supporting the metal bellows body, and the effect that the middle position of metal bellows body is supported when being extended and stretched is convenient, and the stability of metal bellows body use is improved.

[0014] 2、The utility model discloses a metal bellows body, rubber plastic thermal insulation layer and rubber coating are set up, and the inner wall fixed connection of metal bellows body has rubber plastic thermal insulation layer, can improve the heat preservation performance of metal bellows body, and the inner wall fixed connection of rubber plastic thermal insulation layer has rubber coating, can improve the corrosion resistance of metal bellows body, thereby improve the service life of metal bellows body. DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is the metal bellows body three-dimensional view of the utility model;

[0017] Figure 3 It is the sleeve three-dimensional section view of the utility model;

[0018] Figure 4 It is the metal bellows body three-dimensional section view of the utility model.

[0019] In the drawing: 1, metal bellows body;2, flange plate;3, positioning block;4, plug rod;5, sliding block;6, sleeve;7, support rod;8, protection board;9, rubber plastic thermal insulation layer;10, rubber coating. CONCRETE IMPLEMENTATION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] The following describes an embodiment of the present invention based on its overall structure.

[0022] See also Figures 1-4 A metal bellows with a stable bracket includes a metal bellows main body 1, a flange 2 is installed at the bottom of the metal bellows main body 1, a positioning block 3 is fixedly connected to the outer wall of the flange 2, a plug rod 4 is installed inside the positioning block 3, one end of the plug rod 4 is fixedly connected to a slider 5, the outer wall of the slider 5 is movably connected to a sleeve 6, the outer wall of the sleeve 6 is fixedly connected to a support rod 7, and one end of the support rod 7 is fixedly connected to a protective plate 8. The positioning block 3 is arranged in a ring with the central axis of the flange 2 as the center, and the positioning block 3 is an open-hole design. The slider 5 and the sleeve 6 constitute a sliding structure, and the outer wall of the slider 5 is fixedly connected to a spring, the plug rod 4 is engaged with the positioning block 3, and the plug rod 4 and the support rod 7 are vertically distributed, which can facilitate the support of the middle position of the metal bellows main body 1.

[0023] See also Figures 1-4 A metal bellows with a stable bracket, the inner wall of the metal bellows main body 1 is fixedly connected with a rubber-plastic insulation layer 9, the inner wall of the rubber-plastic insulation layer 9 is fixedly connected with a rubber coating 10, the metal bellows main body 1 and the rubber-plastic insulation layer 9 are tightly fitted, and the rubber-plastic insulation layer 9 and the rubber coating 10 are tightly fitted, the rubber-plastic insulation layer 9 is sandwiched between the metal bellows main body 1 and the rubber coating 10, and the metal bellows main body 1 and the rubber coating 10 are arranged parallel to each other, which can improve the corrosion resistance of the metal bellows main body 1.

[0024] Working principle: in use, by flange 2 at both ends of the metal bellows body 1 respectively with the conveying pipeline flange connection, while extruding two inserting rod 4, can make slider 5 along the sleeve 6 sliding, and extruding spring, the one end of inserting rod 4 and positioning block 3 butt joint, release inserting rod 4, under the action of spring, can make slider 5 along the sleeve 6 sliding, drive inserting rod 4 inserts into positioning block 3 and is limited, similarly installs the remaining two groups of inserting rod 4, makes three protective plates 8 support metal bellows body 1, the inner wall of metal bellows body 1 is fixedly connected with rubber plastic insulation layer 9, can improve the heat preservation performance of metal bellows body 1, the inner wall of rubber plastic insulation layer 9 is fixedly connected with rubber coating 10, can improve the corrosion resistance of metal bellows body 1, prevent some acid-base medium from causing corrosion to metal bellows body 1 when conveying, so as to complete the use process of the device, the contents not described in detail in the specification belong to the prior art known to the person skilled in the art.

[0025] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A metal bellows with a stable support, comprising a metal bellows body (1), characterized in that: A flange (2) is installed at the bottom of the metal bellows body (1), a positioning block (3) is fixedly connected to the outer wall of the flange (2), an inserting rod (4) is installed inside the positioning block (3), one end of the inserting rod (4) is fixedly connected to a slider (5), the outer wall of the slider (5) is movably connected to a sleeve (6), the outer wall of the sleeve (6) is fixedly connected to a support rod (7), and one end of the support rod (7) is fixedly connected to a protective plate (8); The inner wall of the metal bellows main body (1) is fixedly connected to a rubber-plastic insulation layer (9), and the inner wall of the rubber-plastic insulation layer (9) is fixedly connected to a rubber coating (10).

2. The metal bellows with a stable support according to claim 1, characterized in that: The positioning blocks (3) are arranged in a ring shape with the central axis of the flange (2) as the center, and the positioning blocks (3) are of open hole design.

3. The metal bellows with a stable support according to claim 1, characterized in that: The slider (5) and the sleeve (6) form a sliding structure, and the outer wall of the slider (5) is fixedly connected to a spring.

4. The metal bellows with a stable support according to claim 1, characterized in that: The insertion rod (4) is snap-connected with the positioning block (3), and the insertion rod (4) and the support rod (7) are vertically distributed.

5. The metal bellows with a stable support according to claim 1, characterized in that: The metal bellows main body (1) and the rubber-plastic insulation layer (9) are tightly fitted, and the rubber-plastic insulation layer (9) and the rubber coating (10) are tightly fitted.

6. The metal bellows with a stable support according to claim 5, characterized in that: The rubber-plastic insulation layer (9) is sandwiched between the metal bellows main body (1) and the rubber coating (10), and the metal bellows main body (1) and the rubber coating (10) are arranged in parallel.

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