Bolt compensation type corrugated pipe

Abstract

The utility model relates to the technical field of corrugated pipes, and provides a bolt compensation type corrugated pipe which aims at solving the problems that an existing corrugated pipe connecting assembly is complex in structure, time-consuming and labor-consuming to assemble and disassemble and large in maintenance difficulty. The spigot pipe section is detachably connected with the flaring pipe section of the adjacent corrugated pipe; a plurality of arc blocking pieces are arranged on the outer side wall of the flaring pipe section in a winding mode and are sequentially arranged in an end-to-end mode at intervals. A fastener is connected between every two adjacent arc blocking pieces, and the fasteners are in a tensioned state. According to the bolt compensation type corrugated pipe, the flaring pipe section of the corrugated pipe can be stably and tightly connected with the spigot pipe section of another adjacent corrugated pipe through the arc blocking piece, the fastening piece and the like which are arranged on the outer side wall of the flaring pipe section in a wrapping mode, and the bolt compensation type corrugated pipe is simple in structure and convenient and fast to use.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows, in particular to a latch-compensated bellows. Background Art

[0002] A bellows is a pipe with a corrugated structure, usually made of corrosion-resistant materials such as stainless steel. It has good flexibility and pressure resistance, and has the advantages of being soft and easy to bend, resistant to high pressure, corrosion-resistant, and having a long service life. It is widely used in the industrial field to transport liquids, gases, and steam, and plays an important role in the pipeline systems of the petroleum, chemical, food and other industries. With the development of industrial technology, its scope of application will be further expanded.

[0003] Due to the huge and complex nature of the piping system, multi-section bellows are usually connected end to end. The stability and sealing of the joints between adjacent pipes become the core points of bellows improvement. For example, the patent with publication number CN220337760U provides a bellows assembly, including a first bellows, a locking nut abutting against the left side of the flange on the right connecting pipe, an outer sealing gasket is fixed on the surface of the flange, and when the first bellows and the second bellows are connected for use, the outer sealing gasket is placed in the outer sealing groove on the surface of the flange, the right connecting pipe and the left connecting pipe are butted together, the sealing sleeve enters the interior of the sealing groove to achieve preliminary sealing of the right connecting pipe and the left connecting pipe, the inner sealing gasket abuts against the inner wall of the inner sealing groove in the right connecting pipe to form a secondary seal with good sealing performance. When connected, the positioning rod is butted in the positioning hole to limit the rotation of the sealing sleeve, reduce the wear between the sealing sleeve, the inner sealing gasket and the inner wall of the right connecting pipe, and improve the service life and sealing performance of the sealing sleeve and the inner sealing gasket, and the fixing bolts are screwed and fixed in the threaded holes on the two sets of flanges, and locked by the locking nut.

[0004] However, the existing bellows with the above-mentioned structure have a complex connecting assembly structure, and the assembly and disassembly are time-consuming and labor-intensive. In addition, the parts are small in size and numerous, making maintenance difficult and costly. Utility Model Content

[0005] The purpose of the utility model is to solve the problems of the existing bellows connection assembly having a complex structure, time-consuming and labor-intensive assembly and disassembly, and difficult maintenance. The application provides a latch compensation bellows, which can stably and tightly connect the flared pipe section of the bellows with the plug pipe section of another adjacent bellows through arc baffles and fasteners wrapped on the outer wall of the flared pipe section, and has a simple structure and is easy to use.

[0006] The utility model is realized by the following technical solutions:

[0007] A latch-compensated corrugated pipe, the corrugated pipe comprising a flared pipe section and a plug-in pipe section, the plug-in pipe section being detachably connected to the flared pipe section of the adjacent corrugated pipe; a plurality of arc blocking pieces are arranged around the outer side wall of the flared pipe section, the plurality of arc blocking pieces are arranged in sequence with intervals from head to tail; at least one set of fasteners is connected between two adjacent arc blocking pieces, and the fasteners are in a tensioned state.

[0008] Preferably, the fastener comprises a plurality of positioning bolts penetrating the outer side wall of the arc baffle, and the positioning bolts can be sequentially penetrated into the flared pipe section and the inserted pipe section.

[0009] Preferably, the fastener also includes an elastic band that can be sleeved on two adjacent positioning bolts, one end of the elastic band is sleeved on the positioning bolt of one of the arc baffles, and the other end of the elastic band is sleeved on the positioning bolt of another adjacent arc baffle, and the elastic band is in a tensioned state.

[0010] Preferably, the number of the fasteners is 1 to 5 groups.

[0011] Preferably, a plurality of anti-slip strips are convexly provided on the side wall surface of the arc baffle close to the flared pipe section.

[0012] Preferably, the plurality of anti-slip strips are arranged along the circumferential direction of the expanded pipe section, and the outer wall surface of the expanded pipe section is embedded with a plurality of annular grooves, and the anti-slip strips can be engaged with the annular grooves.

[0013] Preferably, along the feeding direction of the corrugated tube, at least two anti-slip strips are stacked between every two adjacent arc blocking pieces.

[0014] Preferably, an annular sealing strip is sandwiched between the flared pipe section and the inserted pipe section.

[0015] The technical solution of the utility model has the following beneficial effects:

[0016] The latch-compensated bellows of the utility model can stably and tightly connect the flared pipe section of the bellows with the plug-in pipe section of another adjacent bellows through arc-shaped baffles and fasteners wrapped around the outer side wall of the flared pipe section. Combined with components such as anti-slip strips and annular grooves, it greatly facilitates the assembly or disassembly work of operators. The bellows has a simple structure, is easy to use and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a schematic cross-sectional view of the connection of the bellows in Example 1;

[0019] Figure 2 It is a structural schematic diagram of the expanded pipe section in Example 1;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure of the local enlargement of the A part;

[0021] Figure 4 for Figure 3 A schematic diagram of a partial cross-sectional structure of a part of the B part in FIG.

[0022] Figure 5 This is a schematic diagram of the structure of the bellows in Example 1.

[0023] Icons: 1- bellows, 11- flared pipe section, 12- plug-in pipe section, 13- ring groove, 14- convex part, 2- arc baffle, 21- anti-slip strip, 31- positioning bolt, 32- elastic band, 4- sealing strip, 41- clamping strip. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] Example 1

[0028] like Figures 1 to 5 As shown, this embodiment provides a latch-compensated bellows, the bellows 1 comprises a flared pipe section 11 and a plug-in pipe section 12, the plug-in pipe section 12 is detachably connected to the flared pipe section 11 of the adjacent bellows 1; 5 arc blocking pieces 2 are arranged around the outer wall of the flared pipe section 11, the 5 arc blocking pieces 2 are arranged in sequence from head to tail; 2 sets of fasteners are connected between two adjacent arc blocking pieces 2, and the fasteners are in a tensioned state.

[0029] In this embodiment, the expanded pipe section 11 of the bellows 1 can be stably and tightly connected to the socket pipe section 12 of another adjacent bellows 1 by means of the arc baffle 2 and fasteners wrapped around the outer wall of the expanded pipe section 11. Combined with components such as the anti-slip strip 21 and the annular groove 13, it provides great convenience for the operator in assembly or disassembly work. The bellows 1 has a simple structure, is easy to use and maintain.

[0030] In this embodiment, the fastener includes several positioning bolts 31 penetrated through the outer wall of the arc baffle 2, and the positioning bolts 31 can be inserted into the expanded pipe section 11 and the plug-in pipe section 12 in sequence; the fastener also includes an elastic band 32 that can be sleeved on two adjacent positioning bolts 31, one end of the elastic band 32 is sleeved on the positioning bolt 31 of one arc baffle 2, and the other end of the elastic band 32 is sleeved on the positioning bolt 31 of another adjacent arc baffle 2, and the elastic band 32 is in a tensioned state, so that the fastener produces a contraction and tensioning effect on the arc baffle 2, thereby fastening the arc baffle 2.

[0031] In this embodiment, the side wall surface of the arc baffle 2 close to the flared pipe section 11 is convexly provided with several anti-slip strips 21, and the multiple anti-slip strips 21 are arranged along the circumferential direction of the flared pipe section 11, and along the feeding direction of the corrugated tube 1, at least two anti-slip strips 21 are stacked between each two adjacent arc baffles 2; the outer wall surface of the flared pipe section 11 is embedded with a plurality of annular grooves 13, and the anti-slip strips 21 can be clamped with the annular grooves 13, so that the arc baffle 2 can basically fit the outer wall of the flared pipe section 11 during the tightening or loosening process, which is convenient for the operator to assemble or disassemble.

[0032] In this embodiment, an annular sealing strip 4 is sandwiched between the flared pipe section 11 and the inserted pipe section 12. A clamping strip 41 is convexly provided on the outer wall of the sealing strip 4 close to the flared pipe section 11. A convex portion 14 is provided around the flared pipe section 11 close to the clamping strip 41. The convex portion 14 can accommodate the clamping strip 41, thereby improving the sealing and fixing effect of the sealing strip 4.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pin-compensated bellows, characterized in that: The bellows (1) comprises a flared pipe section (11) and a spigot pipe section (12), wherein the spigot pipe section (12) is detachably connected to the flared pipe section (11) of an adjacent bellows (1); A plurality of arc blocking pieces (2) are arranged around the outer wall of the expanded pipe section (11), and the plurality of arc blocking pieces (2) are arranged in sequence at intervals from head to tail; at least one set of fasteners is connected between two adjacent arc blocking pieces (2), and the fasteners are in a tensioned state.

2. The latch-compensated bellows (1) according to claim 1, characterized in that: The fastener comprises a plurality of positioning bolts (31) which are penetrated through the outer side wall of the arc baffle (2), and the positioning bolts (31) can be penetrated into the flared pipe section (11) and the inserted pipe section (12) in sequence.

3. The latch-compensated bellows (1) according to claim 2, characterized in that: The fastener further comprises an elastic band (32) which can be sleeved on two adjacent positioning bolts (31); one end of the elastic band (32) is sleeved on the positioning bolt (31) of one of the circular arc baffles (2); the other end of the elastic band (32) is sleeved on the positioning bolt (31) of another adjacent circular arc baffle (2); and the elastic band (32) is in a tensioned state.

4. The latch-compensated bellows (1) according to claim 1, characterized in that: The number of the fasteners is 1 to 5 sets.

5. The latch-compensated bellows (1) according to any one of claims 1 to 4, characterized in that: The side wall surface of the arc blocking piece (2) close to the expanded pipe section (11) is convexly provided with a plurality of anti-slip strips (21).

6. The latch-compensated bellows (1) according to claim 5, characterized in that: The plurality of anti-slip strips (21) are arranged along the circumferential direction of the flared pipe section (11); the outer wall surface of the flared pipe section (11) is embedded with a plurality of annular grooves (13); and the anti-slip strips (21) can be snap-fitted with the annular grooves (13).

7. The latch-compensated bellows (1) according to claim 5, characterized in that: Along the feeding direction of the corrugated tube (1), at least two anti-slip strips (21) are stacked between every two adjacent arc blocking sheets (2).

8. The latch-compensated bellows (1) according to claim 1, characterized in that: An annular sealing strip (4) is sandwiched between the expanded pipe section (11) and the inserted pipe section (12).

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