Anti-torsion protective sleeve for metal hose connector

Abstract

The utility model provides an anti-torsion protective sleeve for a metal hose connector, which relates to the field of metal hose connector protection and comprises a hose connector body and a metal hose, the side end of the hose connector body is connected with the metal hose through a cover nut, and a hose protective sleeve is mounted on the surface of the metal hose through a fastening bolt. L-shaped inserting plates are welded to the upper end face and the lower end face of the hose protection sleeve, the inner side of the hose protection sleeve is connected with the pipe face of the metal hose in a clamped mode through a connecting backing ring, positioning ring pieces are attached to the left ends of the L-shaped inserting plates in an inserted mode through positioning groove blocks, and a limiting ring plate is attached to the left side face of the hose protection sleeve. Limiting protruding blocks are symmetrically welded to the outer ring face of the limiting ring plate. The utility model solves the problem that a protective sleeve embedded at the joint of the metal hose in the prior art is difficult to prevent the connected hose from being deformed and damaged due to excessive torsion.

Description

Technical Field

[0001] The utility model relates to the technical field of metal hose joint protection, in particular to an anti-twist protective sleeve for a metal hose joint. Background Art

[0002] The metal hose connector is a high-quality flexible pipe in modern industrial pipelines. It is mainly composed of a bellows, a mesh sleeve and a connector. Its inner tube is a thin-walled stainless steel bellows with a spiral or annular shape. The mesh sleeve on the outer layer of the bellows is woven from stainless steel wire or steel belt according to certain parameters. After searching, the prior art (Announcement No.: CN201821240063.4) is a nylon metal hose connector. The text records that "the first threaded tube is embedded with an iron sleeve, the second threaded tube is embedded with a hose protective sleeve, and the second threaded tube is sleeved with a rubber gasket on the outside, which is fixed by a locking nut. The hose protective sleeve is used to avoid direct contact between the metal hose connector and the hose, thereby avoiding damage to the hose." However, the protective sleeve embedded in the metal hose connector in the prior art is difficult to prevent the connected hose from being deformed and damaged due to excessive twisting. Utility Model Content

[0003] In order to overcome the defects of the prior art, a metal hose joint anti-twist protective cover is provided to solve the problem that the protective cover embedded in the metal hose joint in the prior art is difficult to prevent the connected hose from being deformed and damaged due to excessive twisting.

[0004] To achieve the above object, a metal hose connector anti-twist protective sleeve is provided, comprising: a hose connector body and a metal hose, wherein the side end of the hose connector body is connected to the metal hose via a cover nut.

[0005] The metal hose pipe surface is installed with a hose protective cover by fastening bolts, and the upper and lower end surfaces of the hose protective cover are welded with L-shaped plug-in plates. The inner side of the hose protective cover is clamped with the metal hose pipe surface through a connecting gasket, and the left end of the L-shaped plug-in plate is plugged and fitted with a positioning ring piece through a positioning groove block. The left side of the hose protective cover is fitted with a limiting ring plate, and the outer ring surface of the limiting ring plate is symmetrically welded with limiting protrusions.

[0006] Furthermore, cover nuts are threadedly connected to the left and right sides of the hose connector body, and a positioning ring is sleeved and pressed tightly at the threaded connection between the hose connector body and the cover nut.

[0007] Furthermore, positioning groove blocks are symmetrically welded on the side of the positioning ring piece; and an L-shaped plug-in plate is correspondingly plugged into the groove of the positioning groove block, and the positioning groove block is attached to the outer surface of the cover nut.

[0008] Furthermore, the inner annular surface of the hose protective sleeve is movably connected with a connecting gasket; and the connecting gasket is clamped on the corrugated concave surface of the metal hose.

[0009] Furthermore, an elastic tube sleeve is bonded to the right end surface of the hose protective sleeve; and the elastic tube sleeve is wrapped around the outer corrugated tube surface of the metal hose.

[0010] Furthermore, the side surface of the limiting ring plate is embedded and connected to the inner side of the cover nut through a connecting sleeve, and an L-shaped plug-in plate is inserted through the inner side of the limiting protrusion.

[0011] Furthermore, the hose protective sleeve, L-shaped plug plate, connecting gasket, positioning ring and limiting ring plate constitute an anti-twist protection structure of the hose connector body.

[0012] The beneficial effect of the utility model is that the anti-twist protection cover of the metal hose connector of the utility model utilizes the connection gasket to fix the hose protection cover on the surface of the metal hose, and uses the L-shaped plug-in plate that is flush with the metal hose pipe end on the outside of the hose protection cover to locate the twisting condition of the metal hose and the hose connector, so that the L-shaped plug-in plate is inserted into the limit ring plate and abuts against the positioning ring plate groove, which effectively prevents the metal hose and the pipe connector from being excessively twisted and deformed and damaged at the connection, facilitates the positioning of the installation position of the metal hose connector, ensures that the metal hose connector is correctly and firmly installed, and improves the service life of the metal hose connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the front cross-sectional structure of the anti-twist protective cover of the metal hose connector according to the embodiment of the utility model.

[0014] Figure 2 The figure is a side structural schematic diagram of a hose protective cover according to an embodiment of the utility model.

[0015] Figure 3 It is a side structural schematic diagram of a positioning ring piece according to an embodiment of the utility model.

[0016] Figure 4 It is a schematic side view of the structure of the limiting ring plate according to an embodiment of the utility model.

[0017] In the figure: 1. Hose connector body; 11. Cover nut; 2. Hose protective cover; 21. L-shaped plug-in plate; 22. Elastic pipe sleeve; 23. Connecting gasket; 24. Fastening bolt; 3. Metal hose; 4. Positioning ring; 41. Positioning groove block; 5. Limiting ring plate; 51. Limiting protrusion; 52. Connecting sleeve. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 4 As shown, the utility model provides a metal hose connector anti-twist protective sleeve, comprising: a hose connector body 1 and a metal hose 3, wherein the side end of the hose connector body 1 is connected to the metal hose 3 through a cover nut 11,

[0019] The metal hose 3 is installed with a hose protective cover 2 by means of fastening bolts 24. An L-shaped plug-in plate 21 is welded on the upper and lower end surfaces of the hose protective cover 2. The inner side of the hose protective cover 2 is clamped with the metal hose 3 through a connecting gasket 23. The left end of the L-shaped plug-in plate 21 is plugged and fitted with a positioning ring piece 4 through a positioning groove block 41. A limiting ring plate 5 is fitted on the left side surface of the hose protective cover 2, and a limiting protrusion 51 is symmetrically welded on the outer ring surface of the limiting ring plate 5.

[0020] When installing the metal hose 3 and the hose connector body 1, first, the positioning ring piece 4 is sleeved and fixed on the threaded connection between the hose connector body 1 and the cover nut 11, and the L-shaped plug-in plate 21 is flush with the end of the metal hose 3. Then, the metal hose 3 is screwed and fixed on the pipe surface of the metal hose 3. By twisting the metal hose 3, the connection enters the cover nut 11, and the L-shaped plug-in plates 21 on both sides of the pipe surface of the metal hose 3 are driven to insert into the limiting protrusions 51 of the limiting ring plate 5 until the L-shaped plug-in plates 21 are against the positioning groove block 41 of the positioning ring piece 4 and stop twisting. At this time, the correct installation of the hose connector body 1 and the metal hose 3 is completed.

[0021] In this embodiment, the left and right sides of the hose connector body 1 are threaded with cover nuts 11, and the threaded connection between the hose connector body 1 and the cover nut 11 is sleeved and pressed with a positioning ring 4. The side of the positioning ring 4 is symmetrically welded with positioning groove blocks 41; and the positioning groove blocks 41 are correspondingly plugged with L-shaped plug-in boards 21, and the positioning groove blocks 41 are attached to the outer surface of the cover nut 11.

[0022] As a preferred embodiment, the positioning ring 4 facilitates the positioning of the connection position between the cap nut 11 and the metal hose 3, preventing the cap nut 11 and the metal hose 3 from being over-twisted, causing deformation of the connection and damaging the sealing of the tank tube connection.

[0023] In this embodiment, the inner ring surface of the hose protective sleeve 2 is movably connected with a connecting ring 23, and the connecting ring 23 is clamped on the corrugated concave surface of the metal hose 3. The right end surface of the hose protective sleeve 2 is bonded with an elastic sleeve 22, and the elastic sleeve 22 is wrapped around the outer corrugated surface of the metal hose 3.

[0024] As a preferred embodiment, the connection ring 23 is convenient to be stuck on the corrugated concave surface of the metal hose 3, so that the hose protective cover 2 is limited and fixed on the surface of the metal hose 3. At the same time, the connection ring 23 can be rotated on the inner ring surface of the hose protective cover 2, which is convenient for twisting and installing the metal hose 3 and the hose connector body 1. The elastic sleeve 22 uses its own high resilience to prevent the metal hose 3 from excessive bending.

[0025] In this embodiment, the side surface of the limiting ring plate 5 is embedded and connected to the inner side of the cover nut 11 through the connecting sleeve 52, and the inner side of the limiting protrusion 51 is penetrated and plugged with an L-shaped plug-in plate 21.

[0026] As a preferred embodiment, the limiting ring plate 5 is connected to the cover nut 11 of the hose connector body 1 through the connecting sleeve 52, which is used to limit the metal hose 3 from being twisted further, so as to prevent the metal hose 3 and the hose connector body 1 from being damaged due to excessive twisting. At the same time, the limiting protrusion 51 is convenient for limiting the plug-in position of the L-shaped plug-in plate 21, so as to avoid twisting and displacement of the metal hose 3.

[0027] In this embodiment, the hose protective sleeve 2 , the L-shaped plug plate 21 , the connecting washer 23 , the positioning ring piece 4 and the limiting ring plate 5 constitute an anti-twist protection structure of the hose connector body 1 .

[0028] As a preferred embodiment, the anti-twisting protection structure of the hose connector body 1 is convenient for effectively preventing the excessive twisting of the connection between the metal hose and the pipe connector from causing deformation and damage, convenient for locating the installation position of the metal hose connector, ensuring that the metal hose connector is correctly and firmly installed, and improving the service life of the metal hose connector.

[0029] The anti-twist protective cover for the metal hose joint of the utility model can effectively solve the problem in the prior art that the embedded protective cover at the metal hose joint is difficult to prevent the connected hose from being deformed and damaged due to excessive twisting. It can effectively prevent the connection between the metal hose and the pipe joint from being deformed and damaged due to excessive twisting, facilitates the positioning of the installation position of the metal hose joint, ensures that the metal hose joint is correctly and firmly installed, and increases the service life of the metal hose joint. It is suitable for the anti-twist protective cover for the metal hose joint.

Claims

1. A metal hose connector anti-twist protective cover, comprising: A hose connector body (1) and a metal hose (3), wherein the side end of the hose connector body (1) is connected to the metal hose (3) via a cap nut (11), and is characterized in that: The metal hose (3) is mounted with a hose protective sleeve (2) via a fastening bolt (24), the upper and lower end surfaces of the hose protective sleeve (2) are welded with an L-shaped plug-in plate (21), the inner side of the hose protective sleeve (2) is clamped with the metal hose (3) via a connecting washer (23), the left end of the L-shaped plug-in plate (21) is plugged with a positioning ring (4) via a positioning groove block (41), the left side of the hose protective sleeve (2) is fitted with a limiting ring plate (5), and the outer ring surface of the limiting ring plate (5) is symmetrically welded with a limiting protrusion (51).

2. The anti-twist protective cover for a metal hose connector according to claim 1, characterized in that: The left and right sides of the hose connector body (1) are threadedly connected with cover nuts (11), and a positioning ring piece (4) is sleeved and pressed at the threaded connection between the hose connector body (1) and the cover nut (11).

3. The anti-twist protective cover for a metal hose connector according to claim 1, characterized in that: The side surface of the positioning ring piece (4) is symmetrically welded with a positioning groove block (41); and an L-shaped plug-in plate (21) is correspondingly plugged into the groove of the positioning groove block (41), and the positioning groove block (41) is fitted on the outer surface of the cover nut (11).

4. The anti-twist protective cover for a metal hose connector according to claim 1, characterized in that: The inner annular surface of the hose protective sleeve (2) is movably connected with a connecting gasket (23); and the connecting gasket (23) is clamped on the corrugated concave surface of the metal hose (3).

5. The anti-twist protective cover for a metal hose connector according to claim 1, characterized in that: An elastic tube sleeve (22) is bonded to the right end surface of the hose protective sleeve (2); and the elastic tube sleeve (22) is wrapped around the outer corrugated tube surface of the metal hose (3).

6. The anti-twist protective cover for a metal hose connector according to claim 1, characterized in that: The side surface of the limiting ring plate (5) is embedded and connected to the inner side of the cover nut (11) through a connecting sleeve (52), and an L-shaped plug-in plate (21) is inserted through the inner side of the limiting protrusion (51).

7. The anti-twist protective cover for a metal hose connector according to claim 1, characterized in that: The hose protective sleeve (2), the L-shaped plug plate (21), the connecting gasket (23), the positioning ring (4) and the limiting ring plate (5) constitute an anti-twist protection structure of the hose connector body (1).

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