Metal corrugated pipe capable of preventing excessive displacement of expansion joint

Abstract

The utility model relates to the technical field of metal corrugated pipes, in particular to a metal corrugated pipe capable of preventing excessive displacement of an expansion joint, which comprises a metal pipe and expansion joint components, the expansion joint components are arranged on two sides of the metal pipe, fixing mechanisms are arranged on two sides of the metal pipe, threaded sleeves are arranged in the fixing mechanisms, bumps are arranged on the threaded sleeves, and the metal corrugated pipe is arranged on the metal pipe. A threaded sleeve is arranged on the expansion joint assembly, a sealing gasket is arranged in the threaded sleeve, a first flange is arranged on one side of the threaded sleeve, a first prefabricated hole is formed in the first flange, a first limiting block is arranged on the first flange, an adjusting mechanism is arranged on the expansion joint assembly, an expansion joint is arranged in the adjusting mechanism, and a second flange is arranged on one side of the expansion joint. And a second prefabricated hole is formed in the second flange.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal bellows technical field, concretely is a kind of metal bellows of preventing expansion joint excessive displacement. BACKGROUND

[0002] Metal bellows is a kind of pipe material that the appearance is like regular wave, commonly used metal bellows has carbon steel, and stainless steel, also has steel lining plastic, aluminum, etc.It is mainly used for needing very small bending radius non-concentric axial transmission, or irregular turn, expansion, or absorb the thermal deformation of pipeline, etc., or the occasion of not being convenient to install with fixed elbow, or the connection of pipeline and equipment uses, compensator is also called expansion joint or expansion joint by the wave tube and end tube, support, flange, conduit and other accessories that constitute its working body.The effective telescopic deformation of its working body wave tube is used to absorb the size change of pipeline, conduit, container and other reasons caused by thermal expansion and cold shrink, or compensate the axial, lateral and angular displacement of pipeline, conduit, container and other.

[0003] For this, China patent number: CN218294890U discloses a kind of metal bellows of preventing expansion joint excessive displacement, including metal pipe, the outer wall of the metal pipe is fixedly connected with first flange, the outer wall of the metal pipe and located first flange side fixedly connected with second flange, the side wall of the first flange and the side wall of the second flange are fixedly connected with connecting column, the bottom wall of the connecting column is fixedly connected with positioning block, the bottom wall of the connecting column and located positioning block side is equipped with sliding slot, the inside of the sliding slot is slidably connected with sliding block, the outer wall of the metal pipe and located between first flange and second flange is equipped with expansion joint.The utility model, the inside of sliding slot has sliding block, each sliding block and sliding slot are at the gap of expansion joint, when metal pipe is bent, expansion joint will be deformed, expansion joint will drive sliding block to move, sliding block only moves in the inside of sliding slot, can control the distance of expansion joint displacement, prevent expansion joint excessive displacement.

[0004] However, the existing metal bellows of preventing expansion joint excessive displacement, since expansion joint in existing device needs to carry out telescopic work, and existing device cannot limit expansion joint during telescopic process, further influence normal use of device.

[0005] Therefore, in order to solve the above problems, a kind of metal bellows of preventing expansion joint excessive displacement is provided UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose at providing a kind of metal bellows of anti-expansion joint excessive displacement, to solve the metal bellows of anti-expansion joint excessive displacement in prior art mentioned in above background art, because expansion joint in existing device needs to be telescopic work, and existing device cannot be positioned work to expansion joint in telescopic process, and then affect the normal use of device problem.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of metal bellows of anti-expansion joint excessive displacement, comprising: metal pipe and expansion joint component, the metal pipe both sides are equipped with expansion joint component, the metal pipe both sides are equipped with fixed mechanism, the fixed mechanism is equipped with threaded sleeve, the threaded sleeve is equipped with lug, and it is equipped with sealing washer in threaded sleeve, the threaded sleeve one side is equipped with first flange, the first flange is equipped with first prefabricated hole, and it is equipped with first limit block on first flange, the expansion joint component is equipped with adjusting mechanism, the adjusting mechanism is equipped with expansion joint, the expansion joint one side is equipped with second flange, the second flange is equipped with second prefabricated hole.

[0008] Preferably, the second flange is fixedly installed with second limit block, the first threaded rod is rotatably installed on the second limit block, and the first threaded rod is rotatably installed on the first limit block.

[0009] Preferably, the first threaded rod is movably installed with limit bolt at both ends, and the second threaded rod is movably installed on one side of the second flange.

[0010] Preferably, the threaded sleeve is screw-mounted on the metal pipe, the lug is fixedly installed on the threaded sleeve, and the sealing washer is movably installed in the threaded sleeve.

[0011] Preferably, the first flange is fixedly installed on the first threaded sleeve on one side, and the first limit block is fixedly installed on the first flange.

[0012] Preferably, the first flange is movably installed on the metal pipe through the threaded sleeve.

[0013] Preferably, the expansion joint is fixedly installed on the first flange on one side, and the expansion joint is fixedly installed on the second flange on the other side, and the second flange is movably connected with the first flange through the first threaded rod.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The utility model discloses a fixed mechanism is provided with, through this mechanism can be installed on the metal pipe through the first flange activity, through the knob in the mechanism rotates the threaded sleeve and rotates, through the threaded sleeve and metal pipe carries out the screw connection, in this process can through the sealing gasket and is sealed to the contact point of threaded sleeve and metal pipe, this process can through the first limit block and supports the one end of first threaded rod and carries out the location work, and then improve the practicality of device.

[0016] 2. The utility model discloses an adjusting mechanism is provided with, through this mechanism can carry out the location work to the telescopic joint, through the first threaded rod in the mechanism through the second limit block and drives second flange to move, and then makes telescopic joint carry out the telescopic work, through the location bolt and carries out the location work, through the second threaded rod and is connected with the structure that needs to be connected and installs device, in this process can through the first threaded rod and carries out the location work to first flange and second flange, so as to improve the work efficiency of device. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will introduce the drawing needed to be used in the embodiment of the utility model briefly, and obviously, the drawing in the following description is only some embodiments of the utility model, and for the ordinary skilled person in the art, under the premise of not paying the creative labor, other drawings can also be obtained according to the content of the embodiment of the utility model and these drawings.

[0018] Figure 1 It is the structure front view schematic diagram of the utility model;

[0019] Figure 2 It is the structure front view schematic diagram of the main body of the utility model;

[0020] Figure 3 It is the structure front view cross section schematic diagram of the fixed mechanism of the utility model;

[0021] Figure 4 It is the structure cross section schematic diagram of the adjusting mechanism of the utility model.

[0022] In the drawing: 1, metal pipe; 2, expansion joint assembly; 3, fixed mechanism; 31, threaded sleeve; 32, knob; 33, sealing gasket; 34, first flange; 35, first prefabricated hole; 36, first limit block; 4, adjusting mechanism; 41, telescopic joint; 42, second flange; 43, second prefabricated hole; 44, second limit block; 45, first threaded rod; 46, location bolt; 47, second threaded rod. PREFERRED EMBODIMENT

[0023] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the scope of the utility model protection.

[0024] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Please refer to Figures 1-4 The utility model provides an embodiment:

[0026] The metal pipe 1 used in the application is a product that can be directly purchased on the market, and its principle and connection mode are all prior art well known to those skilled in the art, so they will not be described here.

[0027] A kind of metal bellows of anti-expansion joint excessive displacement, including: metal pipe 1 and expansion joint component 2, expansion joint component 2 is equipped on the both sides of metal pipe 1, fixed mechanism 3 is equipped on the both sides of metal pipe 1, threaded sleeve 31 is equipped in fixed mechanism 3, lug 32 is equipped on threaded sleeve 31, and sealing pad 33 is equipped in threaded sleeve 31, first flange 34 is equipped in one side of threaded sleeve 31, first prefabricated hole 35 is opened in first flange 34, and first limiting block 36 is equipped on first flange 34, adjusting mechanism 4 is equipped on expansion joint component 2, telescopic joint 41 is equipped in adjusting mechanism 4, second flange 42 is equipped in one side of telescopic joint 41, second prefabricated hole 43 is opened in second flange 42, by being provided this component, expansion joint component 2 can be movably installed on metal pipe 1 by fixed mechanism 3, and telescopic joint 41 can be telescopic adjusted and limited work according to needs by adjusting mechanism 4.

[0028] As a further improvement of the utility model, the second flange 42 is fixedly provided with a second limiting block 44, the first threaded rod 45 is rotatably installed on the second limiting block 44, and one end of the first threaded rod 45 is rotatably installed on the first limiting block 36. Through the arrangement of the component, the second limiting block 44 can be supported and fixed by the second flange 42, and one end of the first threaded rod 45 can be supported and limited by the second limiting block.

[0029] As a further improvement of the utility model, the first threaded rod 45 is movably provided with a limiting bolt 46 at both ends, and the second threaded rod 47 is movably installed on one side of the second flange 42. Through the arrangement of the component, the second flange 42 can be moved by the first threaded rod 45, so that the telescopic joint 41 works.

[0030] As a further improvement of the utility model, the threaded sleeve 31 is threadedly installed on the metal pipe 1, the protrusion 32 is fixedly installed on the threaded sleeve 31, and the sealing gasket 33 is movably installed in the threaded sleeve 31. Through the arrangement of the component, the threaded sleeve 31 can be rotated by the protrusion 32 on the threaded sleeve 31, and the contact point between the metal pipe 1 and the threaded sleeve 31 can be sealed by the sealing gasket 33.

[0031] As a further improvement of the utility model, the first flange 34 is fixedly installed on the first threaded sleeve 31, and the first limiting block 36 is fixedly installed on the first flange 34. Through the arrangement of the component, the other end of the first threaded rod 45 can be supported and limited by the first limiting block 36 on the first flange 34.

[0032] As a further improvement of the utility model, the first flange 34 is movably installed on the metal pipe 1 through the threaded sleeve 31. Through the arrangement of the component, the first flange 34 can be rotated by the threaded sleeve 31.

[0033] As a further improvement of the utility model, the telescopic joint 41 is fixedly installed on one side of the first flange 34, and the telescopic joint 41 is fixedly installed on the other side of the second flange 42. The second flange 42 is movably connected with the first flange 34 through the first threaded rod 45. Through the arrangement of the component, the telescopic joint 41 can be extended or shortened as needed.

[0034] Working principle: when the metal bellows of anti-expansion joint is needed to be used, only need to install the first flange 34 on the metal pipe 1 through the fixing mechanism 3, rotate the screw sleeve 31 through the convex block 36 in the mechanism, and then screw the screw sleeve 31 with the metal pipe 1, in the process, the contact point of the screw sleeve 31 and the metal pipe 1 can be sealed through the sealing gasket 33, in the process, the first threaded rod 45 can be supported and limited through the first limiting block 36, according to the need, the telescopic joint 41 can be limited through the adjusting mechanism 4, the second flange 42 can be moved through the first threaded rod 45 in the mechanism, and then the telescopic joint 41 can be telescoped, the telescopic joint 41 can be limited through the limiting bolt 46, the device can be connected and installed with the structure to be connected through the second threaded rod 47, in the process, the first flange 34 and the second flange 42 can be limited through the first threaded rod 45, so as to improve the working efficiency of the device.

[0035] The above is only the preferred embodiment of the present application, and does not limit the present application in any form; any ordinary technical personnel in the industry can implement the present application according to the above description and the drawings; however, any equivalent changes, modifications and evolution of the above-mentioned technical content within the scope of the technical scheme of the present application are equivalent embodiments of the present application; at the same time, any equivalent changes, modifications and evolution of the above-mentioned technical content within the scope of the technical scheme of the present application are equivalent embodiments of the present application.

Claims

1. A metal bellows for preventing over displacement of an expansion joint, comprising: Metal pipe (1) and expansion joint assembly (2), both sides of the metal pipe (1) are provided with expansion joint assembly (2), characterized in that: both sides of the metal pipe (1) are provided with fixing mechanism (3), the fixing mechanism (3) is provided with threaded sleeve (31), the threaded sleeve (31) is provided with protruding block (32), and the threaded sleeve (31) is provided with sealing pad (33), one side of the threaded sleeve (31) is provided with first flange (34), the first flange (34) is provided with first prefabricated hole (35), and the first flange (34) is provided with first limiting block (36), the expansion joint assembly (2) is provided with adjusting mechanism (4), the adjusting mechanism (4) is provided with telescopic joint (41), one side of the telescopic joint (41) is provided with second flange (42), the second flange (42) is provided with second prefabricated hole (43).

2. The metal bellows of claim 1, wherein: The second flange (42) is fixedly installed with second limiting block (44), the first threaded rod (45) is rotatably installed on the first limiting block (36).

3. A metal bellows according to claim 2, wherein: The first threaded rod (45) is movably installed with limiting bolt (46) at both ends, and the second threaded rod (47) is movably installed on one side of the second flange (42).

4. The metal bellows of claim 1, wherein: The threaded sleeve (31) is threadedly installed on the metal pipe (1), the protruding block (32) is fixedly installed on the threaded sleeve (31), and the sealing pad (33) is movably installed in the threaded sleeve (31).

5. The metal bellows of claim 1, wherein: The first flange (34) is movably installed on the metal pipe (1) through the threaded sleeve (31).

6. The metal bellows of claim 1, wherein: One side of the first flange (34) is fixedly installed on the first threaded sleeve (31), and the first limiting block (36) is fixedly installed on the first flange (34).

7. The metal bellows of claim 1, wherein: The telescopic joint (41) is movably connected with the first flange (34) through the first threaded rod (45).

Images