Connecting structure of hose and connecting pipeline

Abstract

The utility model provides a hose connecting structure and a connecting pipeline and belongs to the field of pipeline connection.The hose connecting structure comprises an outer connecting sleeve, an inner connecting sleeve and a locking piece, a first pipe inserting groove is formed in the end face of one end of the outer connecting sleeve, and the diameter of the outer wall of the outer connecting sleeve is gradually increased in the direction away from the bottom wall of the first pipe inserting groove; the inner diameter and the outer diameter of the outer connecting sleeve can be shrunk; a second pipe inserting groove is formed in the end face of any end of the inner connecting sleeve, the second pipe inserting groove is in a barrel shape coaxial with the inner connecting sleeve, and the outer diameter and the inner diameter of the outer wall of the end, away from the bottom wall of the second pipe inserting groove, of the inner connecting sleeve can be shrunk; the locking piece comprises a locking nut which is in threaded connection with the periphery of the outer connecting sleeve. Compared with the prior art, the two connecting sleeves are respectively sleeved at the butt joint position of the two hoses, the two connecting sleeves are deformed by hooping the two connecting sleeves, the hoses are clamped in the deformation process of the two connecting sleeves, mortise and tenon joint is formed, butt joint of the hoses is firmer, and the hoses are not damaged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline connection field, more specifically, relate to a kind of connecting structure of hose, the utility model further relates to a kind of connecting pipeline. BACKGROUND

[0002] Hose is important component in modern industry. Hose is mainly used as wire, cable, automation instrument signal wire and cable protection tube and civilian shower hose, and its specification is from 3mm to 150mm. Small-bore hose (inner diameter 3mm-25mm) is mainly used for precision optical ruler sensing circuit protection, industrial sensor circuit protection. According to material, it is mainly divided into: stainless steel hose, metal hose, corrugated hose, rubber hose and plastic hose, among which, plastic hose is divided into two kinds, one is completely airtight and watertight, for example, used for propellant delivery of carrying rocket, gas, water heater, the other is continuously coiled with belt material, ordinary coiled corrugated tube is used for protecting cable, for example, magnetic card telephone, machine tool, while the corrugated tube of desk lamp is clamped into steel wire in production process; Rubber hose is steel wire braided rubber hose. Rubber hose is composed of inner rubber layer, one layer of steel wire braided layer and outer rubber layer. It is suitable for conveying hydraulic fluid, such as alcohol, fuel oil, lubricating oil, emulsion and the like.

[0003] Plastic hose and rubber hose are generally connected through corresponding connecting structure. The existing connecting structure generally comprises a connector body, a sleeve and a nut. When the sleeve and the nut are inserted into the connector body on the steel pipe, and the nut is tightened, the outer side of the front end of the sleeve is attached to the tapered surface of the connector body, and the inner blade is uniformly bitten into the outer wall of the hose to form effective sealing. However, the inner blade of the existing sleeve will cause damage to the outer wall of the hose during biting the outer wall of the hose. When the hose is pulled or bent, the part of the outer wall of the hose bitten by the inner blade is easy to tear, thereby causing damage to the hose, which adversely affects the structural strength and air tightness of the hose, and needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a connecting structure of hose to solve the technical problem that the existing hose connecting structure can damage the hose.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a connecting structure of hose, comprising:

[0006] The outer connecting sleeve is a cylinder, a first pipe insertion groove is formed in the end face of any one end of the outer connecting sleeve, the first pipe insertion groove is cylindrical, and the first pipe insertion groove is coaxial with the outer connecting sleeve, a first internal thread is formed in the inner wall of the outer connecting sleeve, a first external thread is formed in the outer periphery of the outer connecting sleeve, the outer wall diameter of the outer connecting sleeve gradually increases in the direction away from the bottom wall of the first pipe insertion groove, and the inner diameter and the outer diameter of the end of the outer connecting sleeve close to the slot of the first pipe insertion groove can be contracted.

[0007] An inner connecting sleeve, wherein the inner connecting sleeve is a cylindrical body coaxial with the outer connecting sleeve, a second pipe inserting groove is provided on the end surface of either end of the inner connecting sleeve, the inner wall of the hose is interference fit with the inner wall of the second pipe inserting groove, the second pipe inserting groove is cylindrical coaxial with the inner connecting sleeve, and an end of the outer wall of the inner connecting sleeve adjacent to the bottom wall of the second pipe inserting groove is provided with a second external thread that can be threadably adapted to the first external thread, and the outer diameter and inner diameter of the outer wall of the end of the inner connecting sleeve away from the bottom wall of the second pipe inserting groove can both be contracted;

[0008] The locking piece includes a locking nut, and the inner wall of the locking nut can be threadably matched with the first external thread.

[0009] In a possible implementation, the locking member further includes a first sealing nut and a second sealing nut, and the first sealing nut and the second sealing nut are threadedly adapted to the outer periphery of the outer connecting sleeve.

[0010] In a possible implementation, the outer connecting sleeve is provided with a plurality of first notches, the first notches are formed on the inner wall and the outer wall of the outer connecting sleeve, the first notches extend along the axial direction of the outer connecting sleeve, and the first notches are evenly arranged around the axis of the connecting sleeve.

[0011] In a possible implementation, a plurality of second notches are formed on an outer wall of the inner connecting sleeve. The second notches extend along the axial direction of the inner connecting sleeve, and the second notches are evenly arranged around the axis of the inner connecting sleeve.

[0012] In a possible implementation, a first closing end and a second closing end are respectively provided on opposite sides of the first sealing nut and the second sealing nut, and inner edges of the first closing end and the second closing end are both in airtight contact with the hose.

[0013] In a possible implementation, the groove width of the bottom of the first cannula groove is greater than the groove width of the top of the first cannula groove, and the groove width of the bottom of the second cannula groove is greater than the groove width of the top of the second cannula groove.

[0014] In one possible implementation, the inner side wall of the first inserting tube groove is provided with a plurality of first annular protrusions coaxial with the outer connecting sleeve, and each of the first annular protrusions is evenly arranged around the axial direction of the outer connecting sleeve; the inner side wall of the second inserting tube groove is provided with a plurality of second annular protrusions coaxial with the inner connecting sleeve, and each of the second annular protrusions is evenly arranged around the axial direction of the inner connecting sleeve.

[0015] In a possible implementation, at least two positioning planes are provided on the outer periphery of the outer connecting sleeve. The two positioning planes are parallel to each other and are symmetrically arranged with the axis of the outer connecting sleeve as the center.

[0016] Compared with the prior art, the connecting structure of the soft pipe has the beneficial effects that:

[0017] Firstly, the first pipe insertion groove and the second pipe insertion groove in the utility model can be inserted with the soft pipe, so that the two connecting sleeves are respectively sleeved on the two soft pipes, and then the communication of the two soft pipes can be formed through the rotary connection between the outer connecting sleeve and the inner connecting sleeve; after the outer connecting sleeve is screwed on the inner connecting sleeve, the locking nut can reduce the diameter size of the outer connecting sleeve in the locking process, and the soft pipe in the first pipe insertion groove and the second pipe insertion groove is extruded, and with the further locking of the locking nut, the outer diameter of one end of the outer connecting sleeve near the slot of the first pipe insertion groove is greater than that of the other end, and the inner connecting sleeve and the outer connecting sleeve are the same, so that the inner and outer connecting sleeves form a mortise and tenon structure together, so that the overall structural strength of the soft pipe connected through the inner connecting sleeve and the outer connecting sleeve can be guaranteed; in addition, the soft pipe is extruded by the inner wall of the pipe insertion groove, so that the soft pipe is not cut, the structure of the outer circumferential surface of the soft pipe is kept intact, and the technical problem that the existing connecting structure can damage the soft pipe is solved.

[0018] Another purpose of the utility model is to provide a connecting pipeline comprising the connecting structure of the soft pipe.

[0019] Compared with the prior art, the connecting pipeline in the utility model has all the beneficial effects of the connecting structure of the soft pipe, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0021] Fig. 1 The overall structure schematic view of the connecting structure of the soft pipe provided by the utility model;

[0022] Fig. 2 The overall structure schematic view of the connecting structure of the soft pipe provided by the utility model in another perspective;

[0023] Fig. 3 The sectional view of the connecting structure of the soft pipe of the utility model.

[0024] In the drawings:

[0025] 1, outer connecting sleeve; 10, first pipe insertion groove; 11, first notch;

[0026] 2, inner connecting sleeve; 20, second insertion pipe slot; 21, second notch;

[0027] 3, locking member; 31, locking nut; 32, first sealing nut; 321, first closing; 33, second sealing nut; 331, second closing. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0029] In the description of the present application, it should be noted that if the terms indicating the orientation or position relationship such as "upper", "lower", "inner", "back" appear, they are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] In addition, in the description of the present application, unless otherwise explicitly limited, the terms "mounting", "connecting", "connection", "connecting member" should be broadly understood. For example, the connection can be fixed connection, or detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood in combination with the specific circumstances.

[0031] In order to make the technical problems, technical solutions and beneficial effects of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0032] Please refer to Figs. 1 to 3 , a connecting structure of a hose is proposed. Overall, the present application mainly comprises two connecting sleeves which are respectively sleeved on the butt joint of two hoses, and the two connecting sleeves are deformed by clamping the two connecting sleeves, the two connecting sleeves are clamped during the deformation process, and the tenon and mortise connection is formed, so that the butt joint of the hose is more reliable and the hose is not damaged.

[0033] Based on the above design idea, in a more specific embodiment, the connecting structure of the hose of the utility model comprises an outer connecting sleeve 1, an inner connecting sleeve 2 and a locking member 3, wherein the outer connecting sleeve 1 is a cylinder, the end face of any one end of the outer connecting sleeve 1 is provided with a first pipe inserting groove 10, the first pipe inserting groove 10 is cylindrical, and the first pipe inserting groove 10 is coaxial with the outer connecting sleeve 1, the inner wall of the outer connecting sleeve 1 is formed with a first internal thread, the outer periphery of the outer connecting sleeve 1 is formed with a first external thread, in the direction away from the bottom wall of the first pipe inserting groove 10, the outer wall diameter of the outer connecting sleeve 1 gradually increases, and the inner diameter and the outer diameter of the end of the outer connecting sleeve 1 close to the slot of the first pipe inserting groove 10 can be contracted; the inner connecting sleeve 2 is a cylinder coaxial with the outer connecting sleeve 1, the end face of any one end of the inner connecting sleeve 2 is provided with a second pipe inserting groove 20, the inner wall of the hose is interference fitted with the inner wall of the second pipe inserting groove 20, the second pipe inserting groove 20 is cylindrical coaxial with the inner connecting sleeve 2, and the outer wall of the inner connecting sleeve 2 is provided with a second external thread capable of threadedly fitting with the first external thread at the end close to the bottom wall of the second pipe inserting groove 20, the outer diameter and the inner diameter of the outer wall of the end of the inner connecting sleeve 2 away from the bottom wall of the second pipe inserting groove 20 can be contracted; the locking member 3 comprises a locking nut 31, and the inner wall of the locking nut 31 can be threadedly fitted with the first external thread.

[0034] Compared with the prior art, the first pipe inserting groove 10 and the second pipe inserting groove 20 in the embodiment can be inserted into the hose, so that the two connecting sleeves are respectively sleeved on the two hoses, and the communication of the two hoses can be formed by the rotary connection between the outer connecting sleeve 1 and the inner connecting sleeve 2; after the outer connecting sleeve 1 is screwed on the inner connecting sleeve 2, the locking nut 31 can reduce the diameter of the outer connecting sleeve 1 during locking, and the hoses in the first pipe inserting groove 10 and the second pipe inserting groove 20 are extruded, and with the further locking of the locking nut 31, the outer diameter of the end of the outer connecting sleeve 1 close to the slot of the first pipe inserting groove 10 is greater than that of the other end, and the inner connecting sleeve 2 is the same as the outer connecting sleeve 1, so that the inner and outer connecting sleeves form a mortise and tenon structure together, so that the overall structural strength of the hose connected by the inner connecting sleeve 2 and the outer connecting sleeve 1 can be guaranteed, and in addition, the embodiment only extrudes the hose through the inner wall of the pipe inserting groove, without cutting the hose, which is beneficial to maintaining the structural integrity of the outer periphery of the hose, thereby solving the technical problem that the existing connecting structure can damage the hose.

[0035] In a specific embodiment, the locking member 3 further comprises a first sealing nut 32 and a second sealing nut 33, both of which are threadedly fitted to the outer periphery of the outer connecting sleeve 1, so as to limit the locking nut 31 by the first sealing nut 32 and the second sealing nut 33, preventing the locking nut 31 from loosening. Based on the present embodiment, a more preferred embodiment is proposed, specifically, the opposite sides of the first sealing nut 32 and the second sealing nut 33 are respectively provided with a first closed end 321 and a second closed end 331, the inner edges of the first closed end 321 and the second closed end 331 are in close contact with the hose, so as to seal the outer periphery of the two pipelines by the two sealing nuts, preventing external foreign matters from invading the connecting part of the outer connecting sleeve 1 and the inner connecting sleeve 2. Of course, in an alternative embodiment, it is also a feasible embodiment to directly use two rubber sleeves to be sleeved on the outer periphery of the outer connecting sleeve 1 and the locking nut 31, which will not be described here.

[0036] In a specific embodiment, the outer connecting sleeve 1 is provided with a plurality of first openings 11, which are formed on the inner wall and the outer wall of the outer connecting sleeve 1, extend along the axial direction of the outer connecting sleeve 1, and are uniformly arranged around the axis of the sleeve. Thus, the present embodiment can make the outer connecting sleeve 1 radially contract through the gaps formed by the first openings 11, so as to clamp the inner connecting sleeve 2 and press the hose located in the first insertion pipe slot 10. Similarly, in another embodiment, the outer wall of the inner connecting sleeve 2 is provided with a plurality of second openings 21, which extend along the axial direction of the inner connecting sleeve 2, are uniformly arranged around the axis of the inner connecting sleeve 2, and make the inner connecting sleeve 2 radially contract under the compression of the outer connecting sleeve 1, so as to press the hose located in the second insertion pipe slot 20 and form a stable connection of the hose connection.

[0037] In addition to the above feasible embodiments, in a specific embodiment, the slot width of the bottom of the first insertion pipe slot 10 is greater than the slot width of the top of the first insertion pipe slot 10, and the slot width of the bottom of the second insertion pipe slot 20 is greater than the slot width of the top of the second insertion pipe slot 20. In this way, as the inner and outer walls of the first insertion pipe slot 10 are extruded, part of the hose is extruded to the bottom part of the first insertion pipe slot 10. Thus, the present embodiment can use more hose at the bottom part of the first insertion pipe slot 10 to clamp the hose at the bottom of the first insertion pipe slot 10. The cooperation between the second insertion pipe slot 20 and the hose is the same as above, and the beneficial effects will not be repeated here.

[0038] In a specific embodiment, the inner side wall of the first insertion groove 10 is provided with a plurality of first annular protrusions coaxial with the outer connecting sleeve 1, each of the first annular protrusions being uniformly arranged around the axis of the outer connecting sleeve 1; the inner side wall of the second insertion groove 20 is provided with a plurality of second annular protrusions coaxial with the inner connecting sleeve 2, each of the second annular protrusions being uniformly arranged around the axis of the inner connecting sleeve 2, so as to form a pagoda-shaped clamping structure on the inner wall of the first insertion groove 10 and the inner wall of the second insertion groove 20, and when the outer connecting sleeve 1 is radially contracted, the first insertion groove 10 and the second insertion groove 20 can clamp the connecting head of the hose, so as to make the connection between the two connecting sleeves and the hose more reliable.

[0039] In a specific embodiment, the outer periphery of the outer connecting sleeve 1 is provided with at least two positioning planes, the two positioning planes are parallel to each other and are symmetrically arranged with the axis of the outer connecting sleeve 1 as the center, so as to facilitate the tightening of the outer connecting sleeve 1 on the inner connecting sleeve 2 and facilitate the tightening of the locking nut 31 on the outer connecting sleeve 1, so that the overall connection structure of the hose is more reasonable.

[0040] In summary, compared with the prior art, the two connecting sleeves in the utility model can be respectively sleeved on the connecting heads of the two hoses, and can clamp the connecting heads of the two hoses through the radial contraction of the outer connecting sleeve 1 and the inner connecting sleeve 2, and form a mortise and tenon structure to prevent the outer connecting sleeve 1 and the inner connecting sleeve 2 from loosening, so that the overall structure of the hose connection is effectively guaranteed; Furthermore, the utility model only extrudes the hose through the inner wall of the insertion groove, which will not cut the hose, and is conducive to maintaining the structural integrity of the outer periphery of the hose, thereby helping to solve the technical problem that the existing connection structure can damage the hose; of course, the utility model can also seal the connecting part of the outer connecting sleeve 1 and the inner connecting sleeve 2 through the two sealing nuts in the above, so as to prevent the parts in the utility model from loosening and being contaminated by the outside during use.

[0041] Based on the same inventive concept, the utility model also proposes a connecting pipeline, which comprises the connection structure of the hose in the above.

[0042] Compared with the prior art, the connecting pipeline in the utility model has all the advantages of the connection structure of the hose described above, which will not be repeated here.

[0043] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and 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 connection structure of hoses, characterized by, The utility model relates to a kind of outer connection sleeve (1), the outer connection sleeve (1) is cylinder, the end face of any one end of the outer connection sleeve (1) is equipped with first cannula slot (10), the first cannula slot (10) is cylindrical, and the first cannula slot (10) is coaxial with the outer connection sleeve (1), the inner wall of the outer connection sleeve (1) is formed with first internal thread, the outer wall of the outer connection sleeve (1) is formed with first external thread, in the direction away from the bottom wall of the first cannula slot (10), the outer wall diameter of the outer connection sleeve (1) gradually increases, and the inner diameter and the outer diameter of the one end of the outer connection sleeve (1) close to the slot of the first cannula slot (10) can be shrunk. The utility model relates to a kind of inner connection sleeve (2), the inner connection sleeve (2) is coaxial with the outer connection sleeve (1) cylinder, the end face of any one end of the inner connection sleeve (2) is equipped with second cannula slot (20), the inner wall of hose is adapted with the inner wall of the second cannula slot (20) with interference, the second cannula slot (20) is coaxial with the inner connection sleeve (2) cylindrical, and the outer wall of the inner connection sleeve (2) is equipped with the second external thread that can be threadedly adapted with the first external thread near the bottom wall of the second cannula slot (20), the outer diameter and the inner diameter of the outer wall of the one end of the inner connection sleeve (2) away from the bottom wall of the second cannula slot (20) can be shrunk. The utility model relates to a kind of locking piece (3), the locking piece (3) includes locking nut (31), the inner wall of the locking nut (31) can be threadedly adapted with the first external thread. The locking piece (3) further includes first sealing nut (32) and second sealing nut (33), and the first sealing nut (32) and the second sealing nut (33) are threadedly adapted to the outer periphery of the outer connection sleeve (1).

2. The hose connecting structure according to claim 1, wherein The outer connection sleeve (1) is provided with a plurality of first slits (11), the first slits (11) are formed on the inner wall and the outer wall of the outer connection sleeve (1), the first slits (11) extend in the axial direction of the outer connection sleeve (1), and each of the first slits (11) is uniformly arranged around the axis of the outer connection sleeve (1).

3. The hose connecting structure according to claim 2, wherein The outer wall of the inner connection sleeve (2) is provided with a plurality of second slits (21), the second slits (21) extend in the axial direction of the inner connection sleeve (2), and each of the second slits (21) is uniformly arranged around the axis of the inner connection sleeve (2).

4. The hose connecting structure according to claim 3, wherein The opposite sides of the first sealing nut (32) and the second sealing nut (33) are respectively provided with a first taper (321) and a second taper (331), and the inner edge of the first taper (321) and the inner edge of the second taper (331) are in close contact with the hose.

5. The hose connecting structure as claimed in claim 2, wherein The slot width of the bottom of the first cannula slot (10) is greater than the slot width of the top of the first cannula slot (10), and the slot width of the bottom of the second cannula slot (20) is greater than the slot width of the top of the second cannula slot (20).

6. The hose connecting structure as claimed in claim 5, wherein ​ 7. The hose connecting structure as claimed in claim 1, wherein The inner side wall of the first insertion slot (10) is provided with a plurality of first annular protrusions coaxial with the outer connecting sleeve (1), and each of the first annular protrusions is uniformly arranged around the axis of the outer connecting sleeve (1); the inner side wall of the second insertion slot (20) is provided with a plurality of second annular protrusions coaxial with the inner connecting sleeve (2), and each of the second annular protrusions is uniformly arranged around the axis of the inner connecting sleeve (2).

8. The hose connecting structure as claimed in claim 1, wherein The outer periphery of the outer connecting sleeve (1) is provided with at least two positioning planes, the two positioning planes are parallel to each other, and are symmetrically arranged with the axis of the outer connecting sleeve (1) as the center.

9. A connection line, characterized in that A connection structure comprising a hose according to any one of claims 1 to 8.

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