Corrugated pipe structure capable of improving axial strength

Abstract

The utility model relates to the technical field of corrugated pipes, and discloses a corrugated pipe structure capable of improving axial strength, which comprises a corrugated pipe, one end of the corrugated pipe is fixedly connected with a connecting sleeve, a plurality of rectangular holes are equidistantly formed in one end, close to the corrugated pipe, of the circumferential surface of the connecting sleeve, and an L-shaped clamping block is rotatably connected in each rectangular hole. A strip-shaped hole is formed in the outer end, located at the connecting sleeve, of each L-shaped clamping block, external threads are formed in the end, away from the corrugated pipe, of the circumferential outer surface of the connecting sleeve, a threaded connection ring is arranged on the circumferential outer surface of the connecting sleeve, a plurality of rotating handles are fixedly connected to the circumferential outer surface of the threaded connection ring at equal intervals, and internal threads are formed in the circumferential inner surface of the threaded connection ring. According to the corrugated pipe connecting device, when the corrugated pipes are used and connected, after the two corrugated pipes are aligned, the two corrugated pipes can be tightly connected by rotating the rotating handle, so that the connecting efficiency is improved, and the technical effect that a user can use the corrugated pipes more conveniently is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows, in particular to a bellows structure capable of improving axial strength. Background Art

[0002] The bellows is a flexible pipe composed of a series of wavy metal plates or coils. It can absorb and disperse pressure when the pressure changes to maintain the normal working state of the pipe. The working principle of the bellows is mainly to absorb pressure and vibration through the elastic deformation of the corrugations, thereby protecting equipment and pipelines.

[0003] However, since the wave crests and troughs of the bellows surround the radial direction of the bellows, the bellows has great strength in the radial direction, but the axial strength is relatively poor. When the bellows are connected, in order to achieve a tight connection, hot melt or flange connection is generally used. The connection method results in low work efficiency and cannot achieve quick connection. Therefore, a bellows structure that can improve the axial strength is designed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a bellows structure which can improve the axial strength.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The cam is provided with a plurality of U-shaped rods which are fixedly connected to the end of the screw threaded joint and the plurality of U-shaped rods are fixedly connected to the end of the screw threaded joint when the screw threaded joint is engaged.

[0007] As a further solution of the utility model, a plurality of fixed blocks are fixedly connected at equal distances to one end of the outer wall of the connecting sleeve close to the bellows, a sliding rod is slidably sleeved in each of the fixed blocks, a circular hole matching the sliding rod is opened on each of the fixed blocks, one end of each of the sliding rods close to the rotating ring is fixedly connected to the rotating ring, and a protrusion is fixedly connected to the other end of each of the sliding rods.

[0008] As a further solution of the utility model, a rubber sealing ring is provided on one side of the inner wall of the connecting sleeve close to the bellows. The provision of the rubber sealing ring ensures better sealing when the two bellows are connected.

[0009] As a further solution of the utility model, a connecting ring is fixedly connected to one end of the bellows away from the connecting sleeve, and the connecting ring is matched with the rubber sealing ring.

[0010] As a further solution of the utility model, a reinforcement layer is fixedly connected to the inner circumferential surface of the corrugated pipe, and a spiral steel wire ring is arranged inside the reinforcement layer.

[0011] As a further solution of the utility model, four reinforcement strips are fixedly connected between the connecting ring and the connecting sleeve at equal distances, and each reinforcement strip is provided with a steel wire inside. By arranging the reinforcement layer, the spiral steel wire ring and the reinforcement strip, the axial strength of the corrugated pipe is enhanced.

[0012] The beneficial effects of the utility model are:

[0013] The utility model adopts the technical means of a screw connection ring, a sliding rod, a rotating ring, an L-shaped clamping block, a U-shaped rod and a rubber sealing ring, and the connecting ring at one end of a bellows is inserted into the connecting sleeve of the other bellows, and the screw connection ring is rotated to connect the two bellows, which effectively solves the problems raised in the background technology, and further realizes that when the bellows are used and connected, after the two bellows are aligned, the two bellows can be tightly connected by rotating the rotating handle, thereby improving the connection efficiency and making it more convenient for users to use.

[0014] The utility model strengthens the thickness and toughness of the corrugated pipe by arranging the reinforcing layer, the spiral steel wire ring and the reinforcing strip, so that the axial strength of the corrugated pipe is greatly improved during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a bellows structure that can improve axial strength proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the connecting sleeve of a bellows structure that can improve the axial strength proposed by the utility model;

[0017] Figure 3 The utility model provides a schematic structural diagram of an L-shaped block of a bellows structure capable of improving axial strength.

[0018] In the figure: 1, bellows; 2, reinforcement layer; 201, spiral wire ring; 3, connecting ring; 4, reinforcement strip; 5, connecting sleeve; 501, external thread; 502, rectangular hole; 6, screw ring; 601, internal thread; 602, rotating handle; 7, sliding rod; 701, fixing block; 702, protrusion; 703, rotating ring; 8, L-shaped block; 801, strip hole; 9, U-shaped rod; 10, rubber sealing ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] Reference Figure 1-Figure 3 A bellows structure capable of improving axial strength comprises a bellows 1, one end of the bellows 1 is fixedly connected to a connecting sleeve 5, a plurality of rectangular holes 502 are equidistantly provided on the circumferential surface of the connecting sleeve 5 close to the end of the bellows 1, each rectangular hole 502 is rotatably connected to an L-shaped block 8, each L-shaped block 8 is provided with a strip hole 801 at the outer end of the connecting sleeve 5, an outer thread 501 is provided on the outer circumferential surface of the connecting sleeve 5 away from the bellows 1, and the connecting sleeve 5 A screw-on ring 6 is provided on the circumferential outer surface, and a plurality of rotating handles 602 are fixedly connected to the circumferential outer surface of the screw-on ring 6 at equal distances, and an internal thread 601 is provided on the circumferential inner surface of the screw-on ring 6, and the internal thread 601 is adapted to the external thread 501, and a rotating ring 703 is rotatably connected to one end of the screw-on ring 6 close to the bellows 1, and a plurality of U-shaped rods 9 are fixedly connected to the rotating ring 703 close to the side of the L-shaped block 8 at equal distances, and each U-shaped rod 9 is slidably connected in adjacent bar holes 801.

[0022] In this embodiment, a plurality of fixed blocks 701 are fixedly connected at equal distances to one end of the outer wall of the connecting sleeve 5 close to the bellows 1, a sliding rod 7 is slidably sleeved in each of the fixed blocks 701, a circular hole matching the sliding rod 7 is opened on each of the fixed blocks 701, one end of each sliding rod 7 close to the rotating ring 703 is fixedly connected to the rotating ring 703, and a protrusion 702 is fixedly connected to the other end of each sliding rod 7, and the sliding rod 7 and the fixed block 701 limit the rotation of the rotating ring 703.

[0023] In this embodiment, a rubber sealing ring 10 is provided on a side of the inner wall of the connecting sleeve 5 close to the bellows 1 .

[0024] In this embodiment, a connecting ring 3 is fixedly connected to one end of the bellows 1 away from the connecting sleeve 5, and the connecting ring 3 is adapted to the rubber sealing ring 10. The squeezing of the connecting ring 3 and the rubber sealing ring 10 enables the two bellows 1 to be tightly connected.

[0025] In this embodiment, a reinforcing layer 2 is fixedly connected to the inner circumferential surface of the corrugated tube 1, and a spiral wire ring 201 is arranged inside the reinforcing layer 2. The arrangement of the reinforcing layer 2 and the spiral wire ring 201 makes the corrugated tube 1 stronger.

[0026] In this embodiment, four reinforcing strips 4 are fixedly connected between the connecting ring 3 and the connecting sleeve 5 at equal distances, and each reinforcing strip 4 is provided with a steel wire inside. The provision of the reinforcing strips 4 further enhances the strength of the corrugated tube 1 .

[0027] Working principle: A bellows structure that can improve axial strength. When in use, the bellows 1 has greatly improved axial strength through the arrangement of the reinforcement layer 2, the spiral wire ring 201 and the plurality of reinforcement strips 4. When multiple bellows 1 are connected, the connecting ring 3 at one end of one bellows 1 is inserted into the connecting sleeve 5 of another bellows 1, so that the connecting ring 3 contacts the rubber sealing ring 10, and then the rotating handle 602 is rotated to make the screw ring 6 move with the rotating ring 703, and the rotating ring 703 moves away from the L-shaped One side of the block 8 moves, and through the setting of multiple sliding rods 7 and fixed blocks 701, the rotating ring 703 will not rotate when it moves. Through the setting of multiple U-shaped rods 9 and bar holes 801, the rotating ring 703 drives the L-shaped block 8 to rotate when it moves, so that one end of the L-shaped block 8 located on the inner side of the connecting sleeve 5 protrudes from the rectangular hole 502 and contacts the connecting ring 3. As the threaded ring 6 rotates, the multiple L-shaped blocks 8 firmly press the connecting ring 3 and the rubber sealing ring 10 to achieve sealing, thereby realizing the quick connection of the two bellows 1.

[0028] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A bellows structure capable of improving axial strength, comprising a bellows (1), characterized in that: One end of the bellows (1) is fixedly connected to a connecting sleeve (5); a plurality of rectangular holes (502) are equidistantly provided on a circumferential surface of the connecting sleeve (5) at an end close to the bellows (1); an L-shaped clamping block (8) is rotatably connected to each of the rectangular holes (502); each of the L-shaped clamping blocks (8) is provided with a strip-shaped hole (801) at the outer end of the connecting sleeve (5); an external thread (501) is provided on the circumferential outer surface of the connecting sleeve (5) at an end away from the bellows (1); and a screw-on ring is provided on the circumferential outer surface of the connecting sleeve (5). (6), a plurality of rotating handles (602) are fixedly connected at equal distances on the outer circumferential surface of the screw-connecting ring (6), and an internal thread (601) is provided on the inner circumferential surface of the screw-connecting ring (6), and the internal thread (601) is adapted to the external thread (501), and a rotating ring (703) is rotatably connected to one end of the screw-connecting ring (6) close to the bellows (1), and a plurality of U-shaped rods (9) are fixedly connected at equal distances on one side of the rotating ring (703) close to the L-shaped clamping block (8), and each of the U-shaped rods (9) is slidably connected to adjacent bar holes (801).

2. The bellows structure capable of improving axial strength according to claim 1, characterized in that: A plurality of fixed blocks (701) are fixedly connected at equal distances to one end of the outer wall of the connecting sleeve (5) close to the bellows (1); a sliding rod (7) is slidably sleeved in each of the fixed blocks (701); a circular hole matching the sliding rod (7) is opened on each of the fixed blocks (701); one end of each of the sliding rods (7) close to the rotating ring (703) is fixedly connected to the rotating ring (703); and the other end of each of the sliding rods (7) is fixedly connected to a protrusion (702).

3. The bellows structure capable of improving axial strength according to claim 1, characterized in that: A rubber sealing ring (10) is provided on one side of the inner wall of the connecting sleeve (5) close to the corrugated pipe (1).

4. The bellows structure capable of improving axial strength according to claim 1, characterized in that: A connecting ring (3) is fixedly connected to one end of the bellows (1) away from the connecting sleeve (5), and the connecting ring (3) is matched with the rubber sealing ring (10).

5. The bellows structure capable of improving axial strength according to claim 1, characterized in that: The inner circumferential surface of the corrugated pipe (1) is fixedly connected to a reinforcement layer (2), and a spiral steel wire ring (201) is arranged inside the reinforcement layer (2).

6. The bellows structure capable of improving axial strength according to claim 4, characterized in that: Four reinforcement strips (4) are fixedly connected at equal distances between the connection ring (3) and the connection sleeve (5), and each reinforcement strip (4) is provided with a steel wire inside.

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