Impact-resistant metal armored hose

Abstract

The utility model relates to the technical field of metal armored hoses, in particular to an anti-impact metal armored hose which comprises a rubber inner pipe, a lining buffer pipe sleeved on the outer side of the rubber inner pipe, an armored metal outer pipe sleeved on the outer side of the lining buffer pipe, and a metal sleeve inserted at one end of the rubber inner pipe. One end of the armored metal outer pipe is fixedly connected with a threaded inner joint, and the threaded inner joint is in threaded connection with a threaded outer connecting pipe; according to the shock-resistant metal armored hose, the shock resistance is improved mainly by additionally arranging the lining buffer pipe between the rubber inner pipe and the armored metal outer pipe, and the single friction insertion mode of the rubber inner pipe and the metal sleeve is changed into the mode that the extrusion convex ring is additionally arranged on the metal sleeve and the opening groove is formed in the threaded inner joint. When the threads are screwed down, extrusion force on the rubber inner pipe and the metal sleeve is increased to avoid slipping, the plug with the fixing round hole is additionally arranged at the end of the rubber inner pipe and connected with the inserting groove in the metal sleeve in an inserted mode and fixed through the pin, and the anti-slipping capacity of the connector during impact is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of metal armored flexible pipe, specifically to an impact-resistant metal armored flexible pipe. BACKGROUND

[0002] Metal armored flexible pipe is a kind of flexible pipeline with special structure, which is usually composed of inner rubber hose, outer armored metal hose and connector, and is widely used in liquid delivery system, gas delivery system and automation equipment and other wide fields, with its unique performance and wide application field, plays an important role in industrial production.

[0003] The existing patent with the announcement number CN220488523U discloses a kind of armored metal flexible pipe, armored metal flexible pipe includes connecting connector, bellows, heat preservation layer and winding sheath, the outer surface of the bellows is equipped with metal mesh cover, collar fixes the metal mesh cover with bellows, the connecting connector is located at the both ends of the bellows and is connected with the bellows, the heat preservation layer is wound at the outer surface of the metal mesh cover and connecting connector, the winding sheath is arranged at the outer surface of the heat preservation layer.The armored metal flexible pipe provided by the utility model has the advantages of good high-temperature-resistant protection effect and long service life.

[0004] The above scheme and armored flexible pipe under prior art are usually equipped with a layer of metal armored pipe outside inner rubber hose, and the connecting head is usually directly sleeved on metal connector by rubber hose relying on its elastic force, and the friction between rubber hose and metal connector avoids the slipping of hose, but such structure is prone to extruding inner hose when impacted, which can easily cause the rupture of inner hose and the falling of inner hose connector, and there is lack of corresponding impact-resistant structure, so it needs to be improved and optimized. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an impact-resistant metal armored flexible pipe to solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: an impact-resistant metal armored flexible pipe includes rubber inner tube, the rubber inner tube is equipped with inner lining buffer tube outside, the inner lining buffer tube is equipped with armored metal outer tube outside, one end of the rubber inner tube is inserted with metal sleeve, one end of the armored metal outer tube is fixedly connected with threaded inner connector, and the threaded inner connector is threadedly connected with threaded outer connecting pipe.

[0007] Preferably, the rubber inner tube is provided with a plurality of insertion blocks at one end, and the insertion blocks are provided with fixed round holes outside.

[0008] Preferably, the rubber inner tube is provided with two groups of extrusion grooves inside one end.

[0009] Preferably, the armored metal outer tube is provided with an open slot at one end, and the inner liner buffer tube is provided with an open slot at one end.

[0010] Preferably, the metal sleeve is provided with a sealing groove at one end, a sealing ring is sleeved in the sealing groove, two groups of extrusion convex rings are arranged in the middle of the metal sleeve, and a plurality of insertion grooves are arranged in the middle of the metal sleeve.

[0011] Preferably, a pin slot is arranged in the insertion groove, a pin is inserted into the pin slot, one end of the pin is fixedly connected with a sliding column, one end of the sliding column is fixedly connected with a connecting spring, and one end of the connecting spring is fixedly connected to one end of the pin slot.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The anti-impact metal armored flexible tube mainly increases the anti-impact capacity of the metal armored flexible tube by increasing the inner liner buffer tube between the rubber inner tube and the armored metal outer tube, changes the single friction insertion mode of the rubber inner tube and the metal sleeve into the mode of increasing the extrusion convex ring on the metal sleeve and the open slot on the threaded inner joint, increases the extrusion force on the rubber inner tube and the metal sleeve when the threaded joint is tightened, avoids slipping, increases the fixed circular hole plug at the end of the rubber inner tube, fixes the plug and the insertion groove on the metal sleeve through the pin, and increases the anti-slip capacity of the joint during impact. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of an anti-impact metal armored flexible tube;

[0015] Figure 2 It is a structural schematic view of an anti-impact metal armored flexible tube; Figure 1 It is an enlarged schematic view of the A part;

[0016] Figure 3 It is another structural schematic view of an anti-impact metal armored flexible tube;

[0017] Figure 4 It is a partial sectional view of an anti-impact metal armored flexible tube;

[0018] Figure 5 It is an enlarged schematic view of the B part; Figure 4 It is an enlarged schematic view of the B part;

[0019] Figure 6 It is another partial sectional view of an anti-impact metal armored flexible tube.

[0020] Figure 7 It is an enlarged schematic view of the C part. Figure 6 It is an enlarged schematic view of the C part.

[0021] In the figure: rubber inner tube 1, plug 101, fixed circular hole 102, extrusion groove 103, inner lining buffer tube 2, armored metal outer tube 3, threaded inner connector 301, open slot 302, metal sleeve 4, sealing groove 401, sealing ring 402, extrusion convex ring 403, insertion slot 404, pin slot 405, pin 406, slide column 407, connecting spring 408, threaded outer connecting tube 5. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme of the utility model to carry out clearly, complete description, and the advantage is more clear and distinct, the following combining with the figure to the utility model embodiment carries out further detailed explanation. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all embodiments, only to explain the embodiments of the utility model, and not for limiting the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the scope of the utility model protection.

[0023] Please refer to Figures 1-7 The utility model provides the following three kinds of preferred scheme embodiment:

[0024] Embodiment one: an impact-resistant metal armored flexible tube includes rubber inner tube 1, rubber inner tube 1 outside is equipped with inner lining buffer tube 2, inner lining buffer tube 2 outside is equipped with armored metal outer tube 3, rubber inner tube 1 one end is inserted with metal sleeve 4, armored metal outer tube 3 one end is fixedly connected with threaded inner connector 301, and threaded inner connector 301 is connected with threaded outer connecting tube 5.

[0025] When using, the inner lining buffer tube 2 between rubber inner tube 1 and armored metal outer tube 3 can make the impact force of rubber inner tube 1 slow down when being impacted, prevent rubber inner tube 1 from being damaged, and the joint of metal armored flexible tube is often connected with external pipe, when metal armored flexible tube and external pipe are connected, the threaded inner connector 301 of one end of metal armored flexible tube is screwed with threaded outer connecting tube 5 to complete the connection of armored metal flexible tube and external pipe.

[0026] Embodiment two: on the basis of embodiment one, preferably, rubber inner tube 1 one end inside is equipped with two groups of extrusion grooves 103; armored metal outer tube 3 one end is equipped with open slot 302, and inner lining buffer tube 2 one end is equipped with open slot 302; metal sleeve 4 one end is equipped with sealing groove 401, and sealing groove 401 is equipped with sealing ring 402 in sleeve, and metal sleeve 4 middle part is equipped with two groups of extrusion convex rings 403, and metal sleeve 4 middle part is equipped with multiple insertion slots 404.

[0027] In use, the two sets of extrusion grooves 103 provided on the inner side of one end of the rubber inner tube 1 and the two sets of extrusion convex rings 403 provided on the middle of the metal sleeve 4 can increase the anti-slip ability of the rubber inner tube 1, the sealing groove 401 and the sealing ring 402 provided on one end of the metal sleeve 4 can increase the sealing performance of the joint, and the opening groove 302 provided on one end of the lining buffer tube 2 and the armored metal outer tube 3 can extrude the rubber inner tube 1 when the threaded inner joint 301 is screwed, thereby increasing the friction between the rubber inner tube 1 and the metal sleeve 4 and further increasing the anti-slip ability of the rubber inner tube 1 and the metal sleeve 4 when impacted.

[0028] In the third embodiment, on the basis of the second embodiment, a plurality of insertion blocks 101 are provided on one end of the rubber inner tube 1, and a fixing circular hole 102 is provided on the outer side of the insertion block 101; a pin slot 405 is provided in the insertion slot 404, a pin 406 is inserted into the pin slot 405, one end of the pin 406 is fixedly connected with a sliding column 407, one end of the sliding column 407 is fixedly connected with a connecting spring 408, and one end of the connecting spring 408 is fixedly connected to one end of the pin slot 405.

[0029] In use, the plurality of insertion blocks 101 provided on one end of the rubber inner tube 1 can be inserted into the insertion slot 404 on the metal sleeve 4, the pin 406 in the insertion slot 404 is inserted into the fixing circular hole 102 on the outer side of the insertion block 101 under the extrusion of the connecting spring 408, and the insertion and fixing and the pin 406 locking connection mode are increased on the basis of the simple friction connection between the rubber inner tube 1 and the metal sleeve 4, thereby further increasing the anti-slip ability of the rubber inner tube 1 and the metal sleeve 4 when impacted, and when it is necessary to disassemble and replace the armored metal hose, the rubber inner tube 1 and the metal sleeve 4 can be separated for replacement operation by only loosening the threaded connection and then disengaging the pin 406 from the fixing circular hole 102 by means of the sliding column 407.

[0030] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A burst resistant metal clad flexible pipe characterised in that: Including rubber inner tube (1), the rubber inner tube (1) outside is sleeved with inner lining buffer pipe (2), the inner lining buffer pipe (2) outside is sleeved with armored metal outer tube (3), the rubber inner tube (1) one end is inserted with metal sleeve pipe (4), the armored metal outer tube (3) one end is fixedly connected with threaded inner joint (301), the threaded inner joint (301) is threadedly connected with threaded outer connecting pipe (5).

2. A flexible impingement resistant metal armoured pipe according to claim 1, characterised in that: The rubber inner tube (1) one end is equipped with multiple groups of insertion blocks (101), the insertion block (101) outside is equipped with fixed round hole (102).

3. A flexible impingement resistant metal armoured pipe according to claim 1, characterised in that: The rubber inner tube (1) one end inside is equipped with two groups of extrusion grooves (103).

4. A flexible impingement-resistant metal armoured pipe according to claim 1, characterised in that: The armored metal outer tube (3) one end is equipped with opening slot (302), the inner lining buffer pipe (2) one end is equipped with opening slot (302).

5. A flexible impingement resistant metal armoured pipe according to claim 1, characterised in that: The metal sleeve pipe (4) one end is equipped with sealing groove (401), the sealing groove (401) inside is sleeved with sealing ring (402), the metal sleeve pipe (4) middle part is equipped with two groups of extrusion convex rings (403), the metal sleeve pipe (4) middle part is equipped with multiple groups of insertion slots (404).

6. A flexible impingement resistant metal armoured pipe according to claim 5, characterised in that: The insertion slot (404) is equipped with pin slot (405) inside, the pin slot (405) is inserted with pin (406), the pin (406) one end is fixedly connected with slide column (407), the slide column (407) one end is fixedly connected with connecting spring (408), the connecting spring (408) one end is fixedly connected to pin slot (405) one end.

Images