DE202020102046U1 - Pipe connection structure - Google Patents

Abstract

Pipe connection structure, characterized in that it comprises:
a main body (1) which is designed as a hollow annular structure, a first bulge (11) being provided outside the main body (1),
an inner sleeve (2) which can be pushed into the main body (1), a gap (5) being provided between two ends of the main body (1) and two ends of the inner sleeve (2),
- An outer sleeve (3) which can be pushed onto the inner sleeve (1), wherein one end of the outer sleeve (3) can protrude into the gap (5), and
- A press cap (4) which can be pushed onto the outside of the main body (1) and the outer sleeve (3), the press cap (4) being able to set the outer sleeve (3) in motion in the gap (5).

Description

TECHNICAL AREA

The present invention relates to the field of piping devices, particularly a piping connection structure.

STATE OF THE ART

When assembling pipelines, pipelines to facilitate storage and transport are generally only of a limited length, with the corresponding pipelines only being connected and installed for pipe laying.

In today's society, air conditioners have become an essential cooling device in life and in production. When installing an air conditioning system, there is a complicated process of connecting pipes. In the prior art, pipelines are generally connected by welding or by means of screws. With such connection options, there is a security risk or an uncomfortable connection with insufficient strength is to be expected.

CONTENT OF THE PRESENT INVENTION

The present invention has for its object to provide a pipeline connection structure with which one or more of the above problems in the prior art can be solved.

• - einen Hauptkörper, der als hohle ringförmige Struktur ausgebildet ist, wobei außerhalb des Hauptkörpers eine erste Ausbuchtung vorgesehen ist,
• - eine Innenhülse, die in den Hauptkörper eingeschoben werden kann, wobei zwischen zwei Enden des Hauptkörpers und zwei Enden der Innenhülse ein Spalt vorgesehen ist,
• - eine Außenhülse, die auf die Innenhülse aufgeschoben werden kann, wobei ein Ende der Außenhülse in den Spalt hineinragen kann, und
• - eine Presskappe, die außen auf den Hauptkörper und die Außenhülse aufgeschoben werden kann, wobei die Presskappe die Außenhülse in Bewegung in den Spalt versetzen kann.

According to one aspect of the present invention, the object is achieved by a pipe connection structure, which comprises:

• a main body which is designed as a hollow annular structure, a first bulge being provided outside the main body,
• an inner sleeve which can be inserted into the main body, a gap being provided between two ends of the main body and two ends of the inner sleeve,
• - An outer sleeve that can be pushed onto the inner sleeve, wherein one end of the outer sleeve can protrude into the gap, and
• - A press cap that can be pushed onto the outside of the main body and the outer sleeve, wherein the press cap can set the outer sleeve in motion in the gap.

The present invention is advantageously characterized in that when the main body is used, it is pushed onto the inner sleeve on the outside and a gap formed between the two components when the main body interacts with the inner sleeve is used for installing a pipe. During assembly, a connecting end of the pipe to be installed is passed in sequence through the press cap and the outer sleeve, inserted over the lower end of the press cap and the outer sleeve and then inserted into the gap, after which the outer sleeve is pushed into the gap and the press cap onto the outer sleeve and the main body is pushed on. Finally, the first bulge of the main body and the lowest area of the press cap are u.a. clamped all around with a pair of clamping pliers and the press cap is pressed firmly against the outer sleeve by means of a press fit by pressing the clamping pliers so that the outer sleeve is pushed further into the gap and both the outer sleeve and the inner sleeve are pressed firmly against the tube at the same time, resulting in a pressed sandwich resembles.

The two ends of the device structure according to the invention can each be connected to a pipe, so that two pipes can be connected to one another easily and conveniently using the device and thus a firm and leak-free connection is achieved.

In some embodiments, it is provided that the first bulge is designed as an annular H-shaped structure, a depression being formed in the middle of the H-shaped first bulge. It is thus advantageously achieved that a tool can snap into the depression, the size of the depression depending on the situation being able to be determined in order to clamp the first bulge and the press cap, which ensures increased flexibility.

In some embodiments, it is provided that the outer side wall is provided with a groove at both ends of the inner sleeve, the inner sleeve being designed as a hollow tubular structure. It is thus advantageously achieved that when the outer sleeve is pushed into the gap, the outer sleeve constantly clamps the tube and, due to the ductility of the tube, which is generally made of a metallic material, the inner wall of the tube can be pressed into the groove on the inner sleeve , so that the tube and the inner sleeve are firmly in a snap connection with each other, in order to achieve a firmer pipe connection with the present invention. Furthermore, an inward groove is provided on the inner sleeve instead of an outward bulge to improve the overall flatness of the surface of the inner sleeve and to facilitate contact with the inner wall of the tube. The Inner sleeve is hollow to connect the pipe to be connected to each other at both ends.

In some embodiments, it is provided that the groove is arranged coaxially with the inner sleeve and is annular, the groove being provided in a multiplicity. It is thus advantageously achieved that, on the one hand, processing is made easier and, on the other hand, a more firm and leak-free connection of the tube and the inner sleeve, which are embedded in one another, is produced with a plurality of grooves.

In some embodiments, it is provided that the inside of the main body is provided with an inwardly directed second bulge and the outside of the inner sleeve is provided with a third bulge, the third bulge being associated with the second bulge and the two sides of the second bulge being flush complete with the two sides of the third bulge to form the bottom of the gap. It is thus advantageously achieved that the second bulge and the third bulge cooperate firmly with one another and the bottom side of the gap can easily rest against one end of the tube in order to support one end of the tube, which results in better sealing at the contact point at which the tube touches the inner sleeve and the main body.

In some embodiments, it is provided that one end of the inner sleeve is provided with a first inclined surface, the first inclined surface causing the outer diameter of the inner sleeve to gradually decrease towards the end. Thus, by providing a first inclined surface, it is advantageously achieved that one end of the inner sleeve gradually tapers in order to facilitate the insertion of an end of the inner sleeve into a pipe to be connected.

In some embodiments it is provided that the outside of the outer sleeve is provided with a second inclined surface, the second inclined surface being annular and causing the diameter of the outer lateral surface of the outer sleeve to gradually decrease from the central region to the end, and the second Inclined surface is formed by several annular surfaces connected in series. Thus, by providing a second inclined surface, it is advantageously achieved that the outer sleeve can be easily inserted into the gap in order to press the pipe to be connected.

In some embodiments it is provided that the inside of one end of the main body is provided with an inner lateral surface and a third inclined surface, the inner lateral surface including an angle α of 90 ° <α <100 ° with the cross-sectional surface of the main body, the third inclined surface is located at one end of the inner surface and causes the inner diameter of the inner surface to gradually increase toward the end of the main body. Thus, by providing a third inclined surface, it is advantageously achieved that the outer sleeve can be easily pushed into the gap, the third inclined surface also being able to interact with the second inclined surface, in order thus to facilitate the insertion of the outer sleeve. With such an adjustment of the angle α, the advance of the outer sleeve is facilitated, on the one hand, while the outer sleeve projects into the gradually narrowing gap and can thus clamp the pipe further, which contributes to a stronger connection to the pipe.

In some embodiments, it is provided that one end of the outer sleeve is provided with a first flat surface and a second flat surface is provided within one end of the press cap, the first flat surface abutting the second flat surface. It is thus advantageously achieved that the first flat surface and the second flat surface have a large contact surface, which increases the force-receiving surface of the press cap and the outer sleeve, thus achieving a more stable force absorption of the two components and facilitating the advancement of the outer sleeve by the press cap.

In some embodiments it is provided that the inside of the opening of the press cap is provided with a fourth inclined surface, the fourth inclined surface causing the inside diameter of the press cap to gradually increase towards the end of the press cap. Thus, by providing a fourth inclined surface, it is advantageously achieved that it is easier to push the press cap onto one end of the outer sleeve and the main body.

Figure list

• 1 eine Explosionsdarstellung einer Rohrleitungsverbindungsstruktur nach einer Ausführungsform der vorliegenden Erfindung;
• 2 eine Schnittdarstellung der Rohrleitungsverbindungsstruktur nach 1 bei Verwendung;
• 3 eine schematische strukturelle Darstellung des Hauptkörpers der Rohrleitungsverbindungsstruktur nach 1;
• 4 eine schematische strukturelle Darstellung der Innenhülse der Rohrleitungsverbindungsstruktur nach 1;
• 5 eine schematische strukturelle Darstellung der Außenhülse der Rohrleitungsverbindungsstruktur nach 1; und
• 6 eine schematische strukturelle Darstellung der Presskappe der Rohrleitungsverbindungsstruktur nach 1.

Show in it

• 1 an exploded view of a pipe connection structure according to an embodiment of the present invention;
• 2nd a sectional view of the pipe connection structure according to 1 Using;
• 3rd is a schematic structural representation of the main body of the pipeline connection structure 1 ;
• 4th a schematic structural representation of the inner sleeve of the pipeline connection structure 1 ;
• 5 is a schematic structural representation of the outer sleeve of the pipeline connection structure 1 ; and
• 6 is a schematic structural representation of the press cap of the pipeline connection structure 1 .

DETAILED DESCRIPTION

The present invention is described in more detail below with reference to the accompanying figures.

1 to 6 schematically show a pipe connection structure according to an embodiment of the present utility model. As is apparent from the drawings, the device comprises a main body 1 , an inner sleeve 2nd , an outer sleeve 3rd and a press cap 4th . The main body 1 who have favourited Inner Sleeve 2nd who have favourited Outer Sleeve 3rd and the press cap 4th are each designed as a hollow tubular or annular structure.

The two ends of the main body 1 formed as a symmetrical structure and the outside of a middle point is with a first bulge 11 provided how from 3rd can be seen.

How out 4th results in the inner sleeve 2nd in the main body 1 are inserted, with two components interacting with each other between two ends of the main body 1 and two ends of the inner sleeve 2nd A gap 5 for inserting a pipe to be connected 6 remains.

How out 5 can be seen, the outer sleeve 3rd provided in a number of two and the two outer sleeves 3rd can on two ends of the inner sleeve 2nd be pushed on, with one end of the outer sleeve 3rd in the gap 5 can protrude.

How out 6 results in the press cap 4th the outer sleeve 3rd assigned and also provided in a number of two, the press cap 4th outside on the main body 1 and the outer sleeve 3rd can be postponed. The press cap 4th primarily serves to move the outer sleeve 3rd moving into the gap 5 .

When using the device according to the invention for connecting the tube 6 becomes the main body 1 outside on the inner sleeve 2nd pushed on and one with the inner sleeve 2nd firmly interacting main body 1 gap formed between both ends of the two components 5 is used to install the pipe 6 how out 2nd can be seen. During assembly there is a connection end of the pipe to be installed 6 one after the other through the press cap 4th and the outer sleeve 3rd passed through, the connection end via a bore of the lower end of the press cap 4th and the outer sleeve 3rd is inserted. Then the connecting end of the pipe 6 in the gap 5 inserted, after which the outer sleeve 3rd in the gap 5 pushed in and the press cap 4th on the outer sleeve 3rd and the main body 1 is postponed. Finally, the first bulge 11 of the main body 1 and the lowest area of the press cap 4th The press cap is clamped circumferentially by means of a clamp, among other things, and by means of a press fit by pressing the clamp 4th against the outer sleeve 3rd firmly pressed so that the press cap 4th towards the main body 1 is driven and thus the outer sleeve 3rd set in motion forward and further into the gap 5 can push in. Now the outer sleeve 3rd constantly in the gap 5 advanced and both the outer sleeve 3rd as well as the inner sleeve 2nd become firm against the pipe 6 pressed, which resembles a sandwich sandwiched around the pipe 6 to be firmly attached.

The two ends of the device structure according to the invention can each be connected to a tube 6 be connected so that using the device two pipes 6 can be easily and comfortably connected to each other and thus a firm and leak-free connection is achieved.

How out 3rd is to facilitate jamming of the main body 1 and the press cap 4th the first bulge with a tool 11 formed as an annular H-shaped structure, with the H-shaped first bulge in the middle 11 a deepening 12 is trained. Now one end of a tool can be inserted into the recess 12 click into place and the other end the lowest area of the press cap 4th clamp, the size of the recess 12 depending on the circumstances can be determined to the first bulge 11 and the press cap 4th to clamp. In addition, the H-shaped shape facilitates clamping in two directions around the pipes 6 to be firmly connected at both ends, which provides increased flexibility.

How out 4th can be seen, the outer side wall of the two ends of the inner sleeve 2nd with a groove 21st Mistake. When pushing in the outer sleeve 3rd in the gap 5 clamps the outer sleeve 3rd the pipe 6 constantly firm and due to the ductility of the pipe 6 , which is usually made of a metallic material such as copper, stainless steel, can cover the inner wall of the pipe 6 deform during pressing and into the groove 21st at the Inner sleeve 2nd be pushed in so that the pipe 6 and the inner sleeve 2nd are firmly in locking connection with each other in order to achieve a firmer pipe connection with the present invention. Furthermore is on the inner sleeve 2nd an inward groove 21st instead of an outward bulge provided the entire flatness of the surface of the inner sleeve 2nd maintain, thus the insertion of the pipe 6 and also a system of the inner sleeve 2nd firmly on the inner wall of the pipe 6 to facilitate.

The groove is used to increase the ease of processing and the strength of the product 21st coaxial with the inner sleeve 2nd arranged and annular, the groove 21st is provided in a variety. The result of this is that, on the one hand, the ring shape makes processing easier and, on the other hand, it has several grooves 21st the contact area of the pipe 6 and the inner sleeve 2nd enlarged and thus a firmer embedding connection is made.

The inner sleeve 2nd is designed as a hollow tubular structure. By placing the inner sleeve 2nd is hollow, the pipe to be connected 6 be connected at both ends.

To achieve a closer interaction of the main body 1 with the inner sleeve 2nd is the inside of the main body 1 with a second bulge 13 provided and the outside of the inner sleeve 2nd is with a third bulge 22 Mistake. The third bulge 22 is the second bulge 13 assigned and the two sides of the second bulge 13 close flush with the two sides of the third bulge 22 off to the bottom side 51 of the gap 5 to build. The second bulge thus acts 13 and the third bulge 22 firmly together and the inner sleeve 2nd is firmly in the main body 1 inserted. The bottom side 51 of the gap 5 can easily be attached to one end of the pipe 6 apply to one end of the tube 6 support what better tightness and strength at the contact point at which the pipe 6 the inner sleeve 2nd and the main body 1 touches, cares.

Furthermore, the end section is at both ends of the inner sleeve 2nd also with a first inclined surface 23 provided, which causes the outer diameter of the inner sleeve 2nd gradually decreases towards the end. Thus, by providing a first inclined surface 23 achieved one end of the inner sleeve 2nd is round and the end portion at both ends of the inner sleeve 2nd gradually tapered to when connecting the pipe 6 inserting one end of the inner sleeve 2nd into a pipe to be connected 6 to facilitate.

How out 5 is to facilitate insertion of the outer sleeve 3rd in the gap 5 and propelling that the outside of the outer sleeve 3rd with a second sloping surface 31 is provided, which is annular and causes the diameter of the outer surface of the outer sleeve 3rd gradually decreases from the central area towards the end to insert the outer sleeve 3rd in the gap 5 to facilitate and thus the pipe to be connected 6 to squeeze. The second sloping surface 31 is formed by several annular surfaces connected in series and resembles a step shape, so that the outer sleeve 3rd gradually advanced and into the gap 5 can be pushed in to the pipe 6 to clamp.

How out 3rd is the inside of one end of the main body 1 with an inner surface 14 and a third inclined surface 15 provided, the inner lateral surface 14 an angle α of 90 ° <α <100 ° with the cross-sectional area of the main body 1 includes. The third sloping surface 15 is located at one end of the inner surface 14 and causes the inner diameter of the inner lateral surface 14 to the end of the main body 1 gradually increases. Thus, by providing a third inclined surface 15 also achieved that the outer sleeve 3rd slightly in the gap 5 can be pushed in, the third inclined surface 15 further with the second inclined surface 31 can cooperate, thus the insertion of the outer sleeve 3rd to facilitate. With such an adjustment of the angle α, on the one hand the driving of the outer sleeve 3rd relieved, on the other hand, the outer sleeve 3rd in the gradually narrowing gap 5 protrudes and the pipe 6 can clamp further, resulting in a tighter connection with the pipe 6 contributes.

How out 5 and 6 one end of the outer sleeve can be seen 3rd with a first flat surface 32 provided and within one end of the press cap 4th is a second flat surface 41 provided, the first flat surface 32 on the second flat surface 41 is present. Thus point the first flat surface 32 and the second flat surface 41 a large contact area, which is the force-absorbing area of the press cap 4th and the outer sleeve 3rd enlarged, thus achieving a more stable force absorption of the two components and driving the outer sleeve 3rd through the press cap 4th is facilitated.

How out 5 is to increase the pressure resistance of the outer sleeve 3rd the lowest area of the outer sleeve 3rd also with a curved section 33 Mistake. When driving the outer sleeve 3rd through the press cap 4th the curved section increases 33 largely the pressure resistance and the elasticity of the outer sleeve.

How out 6 is the inside of the opening of the press cap 4th with a fourth sloping surface 42 provided, the fourth inclined surface 42 causes the inside diameter of the press cap 4th to the end of the press cap 4th gradually increases. Thus, by providing a fourth inclined surface 42 achieved the opening of the press cap 4th is expanded and pushing on the press cap 4th on one end of the outer sleeve 3rd and the main body 1 is facilitated.

So far, only some embodiments of the present invention have been explained. Various variants and developments without departing from the basic idea of the present invention, which are intended to belong to the scope of the invention, are possible for those skilled in the art.

Claims (10)

Pipe connection structure, characterized in that it comprises: - a main body (1) which is designed as a hollow annular structure, a first bulge (11) being provided outside the main body (1), - an inner sleeve (2) which in the main body (1) can be inserted, a gap (5) being provided between two ends of the main body (1) and two ends of the inner sleeve (2), - an outer sleeve (3) which is pushed onto the inner sleeve (1) can, whereby one end of the outer sleeve (3) can protrude into the gap (5), and - a press cap (4) which can be pushed onto the outside of the main body (1) and the outer sleeve (3), the press cap (4 ) can set the outer sleeve (3) in motion in the gap (5). Pipe connection structure according to Claim 1 , characterized in that the first bulge (11) is designed as an annular H-shaped structure, a recess (12) being formed in the center of the H-shaped first bulge (11). Pipe connection structure according to Claim 1 , characterized in that the outer side wall is provided at both ends of the inner sleeve (2) with a groove (21), the inner sleeve (2) being designed as a hollow tubular structure. Pipe connection structure according to Claim 3 , characterized in that the groove (21) is arranged coaxially with the inner sleeve (2) and is annular, the groove (21) being provided in a plurality. Pipe connection structure according to Claim 1 , characterized in that the inside of the main body (1) is provided with a second bulge (13) and the outside of the inner sleeve (2) is provided with a third bulge (22), the third bulge (22) of the second bulge (13 ), and wherein the two sides of the second bulge (13) are flush with the two sides of the third bulge (22) to form the bottom side (51) of the gap (5). Pipe connection structure according to Claim 1 , characterized in that one end of the inner sleeve (2) is provided with a first inclined surface (23), the first inclined surface (23) causing the outer diameter of the inner sleeve (2) to gradually decrease towards the end. Pipe connection structure according to Claim 1 , characterized in that the outside of the outer sleeve (3) is provided with a second inclined surface (31), the second inclined surface (31) being annular and causing the diameter of the outer lateral surface of the outer sleeve (3) from the central region gradually decreases towards the end, and wherein the second inclined surface (31) is formed by a plurality of annular surfaces connected in series. Pipe connection structure according to Claim 1 , characterized in that the inside of one end of the main body (1) is provided with an inner lateral surface (14) and a third inclined surface (15), the inner lateral surface (14) having an angle α of 90 ° <α <100 ° of the cross-sectional area of the main body (1), the third inclined surface (15) being located at one end of the inner lateral surface (14) and causing the inner diameter of the inner lateral surface (14) to gradually increase towards the end of the main body (1). Pipe connection structure according to Claim 1 , characterized in that one end of the outer sleeve (3) is provided with a first flat surface (32) and a second flat surface (41) is provided within one end of the press cap (4), the first flat surface (32) on the second flat surface (41) abuts. Pipe connection structure according to Claim 1 , characterized in that the inside of the opening of the press cap (4) is provided with a fourth inclined surface (42), the fourth inclined surface (42) causing the inside diameter of the press cap (4) gradually towards the end of the press cap (4) increases.

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