Compression-resistant stainless steel single-wall corrugated pipe

Abstract

The utility model discloses a pressure-resistant stainless steel single-wall corrugated pipe which comprises a single-wall corrugated pipe body, and the single-wall corrugated pipe body comprises a pipe body. An inner connector is arranged at one end of the pipe body, an outer connector is arranged at the other end of the pipe body, the inner connector is matched with the outer connector, the outer connector is installed in the inner connector, and a fastening device is movably connected between the inner connector and the outer connector. A pipe body of the single-wall corrugated pipe is composed of continuous protruding structures and groove structures, and a stainless steel gauze layer is arranged on the outer side of the pipe body. The utility model belongs to the technical field of corrugated pipes, and particularly provides a pressure-resistant stainless steel single-wall corrugated pipe, which is used for solving the problems that the mounting and dismounting complexity is caused by the existing screwed joint, and the service life is influenced by the excessive bending and poor pressure-resistant capability of the end part in use.

Description

Technical Field

[0001] The utility model belongs to the technical field of corrugated pipes, in particular to a compression-resistant stainless steel single-wall corrugated pipe. Background Art

[0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and stretching direction. Bellows are widely used in instruments and meters. Their main purpose is to be used as a measuring element of pressure measuring instruments to convert pressure into displacement or force. When working, the bellows stretches along the length of the tube under the action of internal pressure, causing the movable end to produce a displacement that is related to the pressure. The movable end drives the pointer to directly indicate the size of the pressure.

[0003] Common bellows have a complex structure, which makes it difficult to disassemble and install the bellows. To address the above issues, threaded connections are used in existing structures to achieve installation and removal effects. However, due to the variable length of the bellows, when the bellows is relatively long, threaded connections at the joints require rotating the entire structure while rotating the bellows port, which is not conducive to single-person operation and increases the complexity of installation and removal. Moreover, during the connection process, the end of the bellows may be excessively bent, which affects the service life of the bellows. In addition, it is extremely important to extend the pressure resistance and service life of the bellows. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a compression-resistant stainless steel single-wall corrugated pipe, which is used to solve the installation and disassembly complexity caused by the existing threaded joints, as well as the problems of excessive bending of the ends and poor pressure resistance affecting the service life.

[0005] The technical solutions adopted in this application are as follows:

[0006] The present invention provides a compression-resistant stainless steel single-wall corrugated pipe, comprising a single-wall corrugated pipe, wherein the single-wall corrugated pipe comprises a pipe body;

[0007] One end of the tube body is provided with an inner joint, and the other end of the tube body is provided with an outer joint, the inner joint matches the outer joint, the outer joint is installed in the inner joint, and a fastening device is provided between the inner joint and the outer joint for movable connection;

[0008] The tube body of the single-wall corrugated tube consists of a continuous convex structure and a plane structure, and a stainless steel mesh layer is arranged on the outer side of the tube body.

[0009] In the preferred embodiment, a smooth portion is provided as a transition between the tube body and the inner joint and the outer joint, and the fastening device includes a sleeve, which is sleeved on the outer periphery of the smooth portion, and a fixing seat is provided on the outer periphery of the sleeve, and mounting holes are provided on the fixing seat, and the two groups of mounting holes are fixed by bolts and gaskets.

[0010] In a further solution, a sealing gasket or a sealing rubber layer is provided between the ring sleeve and the smooth portion to play a role of sealing and fixing.

[0011] Preferably, the cross-section of the raised structure is a semicircular ring structure or a V-shaped structure. The arrangement of the raised structure and the plane structure can improve the compressive resistance of the tube body, and the compressive resistance is further improved by the design of the stainless steel mesh layer.

[0012] As a preferred solution, the pipe body includes a straight pipe body and an elbow pipe body.

[0013] Furthermore, the ring sleeve includes a large-diameter ring sleeve and a small-diameter ring sleeve, the large-diameter ring sleeve matches the smooth part of the outer joint, and the small-diameter ring sleeve matches the smooth part of the inner joint.

[0014] As a preferred embodiment, the annular outer circumferential surface of the inner joint is provided with ridges and grooves arranged at intervals, and the annular inner circumference of the outer joint is provided with ridges and grooves matching the inner joint. After the inner joint is inserted into the outer joint, the small diameter ring sleeve at the inner joint is close to the large diameter ring sleeve at the outer joint and fixed by bolts.

[0015] The beneficial effects achieved by the utility model using the above structure are as follows:

[0016] 1. The straight-insert design is used to realize the connection between the pipe bodies, and the external ring sleeve is used to realize the fixed connection between the two pipe bodies, which is used to solve the installation and disassembly complexity caused by the existing threaded joints.

[0017] 2. Through the split design of straight tube body and elbow tube body, the elbow tube body is used at the transition joint to avoid the problem of excessive bending of the end and poor pressure resistance affecting the service life. In addition, the setting of the raised structure and the plane structure can improve the pressure resistance of the tube body, and the pressure resistance is further improved by the design of the stainless steel mesh layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of a compression-resistant stainless steel single-wall corrugated pipe provided in this solution;

[0019] Figure 2 It is a structural schematic diagram of the elbow pipe body in this scheme;

[0020] Figure 3 Schematic diagram of the protrusion structure and the plane structure provided in this embodiment Figure 1 ;

[0021] Figure 4 Schematic diagram of the protrusion structure and the plane structure provided in this embodiment Figure 2 ;

[0022] The meanings of the numbers in the accompanying drawings are as follows:

[0023] 1. pipe body, 2. inner joint, 3. outer joint, 4. fastening device, 5. smooth part, 6. straight pipe body, 7. elbow pipe body;

[0024] 11. Raised structure, 12. Plane structure, 13. Stainless steel mesh layer;

[0025] 21, convex, 22, groove;

[0026] 41. ring sleeve, 42. fixing seat, 43. mounting hole, 44. bolt;

[0027] 411. Large diameter ring sleeve, 412. Small diameter ring sleeve. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] Example 1

[0030] Please refer to Figure 1-4 As shown, this embodiment provides a compression-resistant stainless steel single-wall corrugated pipe, including a single-wall corrugated pipe, and the single-wall corrugated pipe includes a pipe body 1. As a preferred solution, the pipe body 1 includes a straight pipe body 6 and an elbow pipe body 7.

[0031] like Figure 1 As shown, one end of the tube body 1 is provided with an inner joint 2, and the other end of the tube body 1 is provided with an outer joint 3, the inner joint 2 matches the outer joint 3, the outer joint 3 is installed in the inner joint 2, and a fastening device 4 is movably connected between the inner joint 2 and the outer joint 3.

[0032] A smooth portion 5 is provided between the tube body 1 and the inner joint 2 and the outer joint 3. The annular outer circumference of the inner joint 2 is provided with convex ridges 21 and grooves 22 arranged at intervals. The annular inner circumference of the outer joint 3 is provided with convex ridges 21 and grooves 22 matching the inner joint 2.

[0033] The fastening device 4 comprises a ring sleeve 41, which is sleeved on the outer periphery of the smooth portion 5. A fixing seat 42 is provided on the outer periphery of the ring sleeve 41. The fixing seat 42 is provided with mounting holes 43. Two groups of mounting holes 43 are fixed with bolts 44 and gaskets.

[0034] As a preferred solution, the ring sleeve 41 includes a large diameter ring sleeve 411 and a small diameter ring sleeve 412, wherein the large diameter ring sleeve 411 matches the smooth portion 5 of the outer joint 3, and the small diameter ring sleeve 412 matches the smooth portion 5 of the inner joint 2. After the inner joint 2 is inserted into the outer joint 3, the small diameter ring sleeve 412 at the inner joint 2 and the large diameter ring sleeve 411 at the outer joint 3 are close to each other and fixed by bolts 44.

[0035] The connection between the pipe bodies 1 is realized by a straight-insertion design, and the fixed connection between the two pipe bodies 1 is realized by an external ring sleeve 41, so as to solve the installation and disassembly complexity caused by the existing threaded joints.

[0036] As an example to further illustrate:

[0037] The tube body 1 of the single-wall corrugated tube is composed of a continuous convex structure 11 and a plane structure, and a stainless steel mesh layer 13 is provided on the outer side of the tube body 1 .

[0038] Combination Figure 3 As shown, the cross section of the protrusion structure 11 is a semicircular ring structure.

[0039] Combination Figure 4 As shown, the cross section of the protrusion structure 11 is a V-shaped structure.

[0040] The arrangement of the protruding structure 11 and the plane structure can improve the compression resistance of the tube body 1 , and the compression resistance is further improved by the design of the stainless steel mesh layer 13 .

[0041] As an example to further illustrate:

[0042] A sealing layer is provided between the ring sleeve 41 and the smooth portion 5 , and the sealing layer includes but is not limited to a sealing gasket or a sealing rubber layer, which plays a role of sealing and fixing.

[0043] When using this structure, the straight tube body 6 and the elbow tube body 7 are designed separately, and the elbow tube body 7 is used at the adapter to avoid problems such as excessive bending of the end and poor pressure resistance that affect the service life. In addition, the setting of the raised structure 11 and the plane structure can improve the pressure resistance of the tube body 1, and the pressure resistance is further improved by the design of the stainless steel mesh layer 13.

[0044] It should be noted that although the embodiments of the utility model have been shown and described, for ordinary technicians in this field, without departing from the inventive purpose of the utility model, structural methods and embodiments similar to the technical scheme without creative design should all fall within the scope of protection of the utility model.

Claims

1. A compression-resistant stainless steel single-wall corrugated pipe, comprising a single-wall corrugated pipe, the single-wall corrugated pipe comprising a pipe body, characterized in that: One end of the tube body is provided with an inner joint, and the other end of the tube body is provided with an outer joint, the inner joint matches the outer joint, the outer joint is installed in the inner joint, and a fastening device is provided between the inner joint and the outer joint for movable connection; The tube body of the single-wall corrugated tube is composed of a continuous convex structure and a plane structure, and a stainless steel mesh layer is provided on the outer side of the tube body; The annular outer circumferential surface of the inner joint is provided with convex ridges and grooves arranged at intervals, and the annular inner circumference of the outer joint is provided with convex ridges and grooves matching the inner joint; A smooth portion is provided between the tube body and the inner joint and the outer joint. The fastening device includes a sleeve, which is sleeved on the outer periphery of the smooth portion. A fixing seat is provided on the outer periphery of the sleeve. The fixing seat is provided with mounting holes. The two groups of mounting holes are fixed by bolts and gaskets.

2. A compression-resistant stainless steel single-wall corrugated pipe according to claim 1, characterized in that: The pipe body includes a straight pipe body and an elbow pipe body.

3. The compression-resistant stainless steel single-wall corrugated pipe according to claim 1, characterized in that: The ring sleeve comprises a large-diameter ring sleeve and a small-diameter ring sleeve, wherein the large-diameter ring sleeve matches the smooth portion of the outer joint, and the small-diameter ring sleeve matches the smooth portion of the inner joint.

4. A compression-resistant stainless steel single-wall corrugated pipe according to claim 3, characterized in that: After the inner joint is inserted into the outer joint, the small-diameter ring sleeve at the inner joint and the large-diameter ring sleeve at the outer joint are close to each other and fixed by bolts.

5. The compression-resistant stainless steel single-wall corrugated pipe according to claim 1, characterized in that: The cross section of the protrusion structure is a semicircular ring structure or a V-shaped structure.

6. The compression-resistant stainless steel single-wall corrugated pipe according to claim 1, characterized in that: A sealing layer is arranged between the ring sleeve and the smooth portion.

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