CA1319718C - Hose coupling - Google Patents
Hose couplingInfo
- Publication number
- CA1319718C CA1319718C CA000549279A CA549279A CA1319718C CA 1319718 C CA1319718 C CA 1319718C CA 000549279 A CA000549279 A CA 000549279A CA 549279 A CA549279 A CA 549279A CA 1319718 C CA1319718 C CA 1319718C
- Authority
- CA
- Canada
- Prior art keywords
- muff
- insert member
- hose coupling
- socket
- insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
- F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
- F16L33/2071—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
- F16L33/2073—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member directly connected to the rigid member
- F16L33/2076—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member directly connected to the rigid member by plastic deformation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
- F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
- F16L33/2071—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
- F16L33/2073—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member directly connected to the rigid member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/14—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain
- F16L37/142—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially
- F16L37/144—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially the securing element being U-shaped
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
ABSTRACT
This invention relates to a hose coupling for high-pressure hoses, having a socket, an insert member formed in the axial continuation of the socket, a peripheral seal on the insert member and a pressure sleeve disposed concentrically around the socket and engaging in a peripheral groove in the insert member. The pressure sleeve is engaged at least partially over the insert member, and has screw, insertion, rotary or clamping means for connecting the halves of the coupling.
This invention relates to a hose coupling for high-pressure hoses, having a socket, an insert member formed in the axial continuation of the socket, a peripheral seal on the insert member and a pressure sleeve disposed concentrically around the socket and engaging in a peripheral groove in the insert member. The pressure sleeve is engaged at least partially over the insert member, and has screw, insertion, rotary or clamping means for connecting the halves of the coupling.
Description
HOSE COUPLING
BACKGROUND OF THE INVENTION
The invention relates to a hose coupling. Hose couplings having insert connections are known, for example, from DIN 20043. These prior art hose couplings having insert connections have the disadvantage that their stability is inadequate to withstand either the prevailing pressures on the line or external mechanical loadings. More particularly, prior art hose couplings having insert connections frequently rupture under pulsating surges, such as often occur in high pressure lines. Weak places include the coupling clamp, but also the place where the pressure sleeve engages with the socket. Another unsatisfactory aspect is the buckling strength of prior art hose couplings having insert connections. When hose couplings are used underground, rocks often drop onto the coupling or somebody accidentally steps on the coupling. Under such loads known insert couplings often break.
An object of the invention is therefore to provide a hose coupling being stable enough to withstand both increased external mechanical loadings, pulsating surges transmitted by the medium in the line, and high internal pressure.
SUMMARY OF_THE INVENT ON
This object is solved by a hose coupling according to the invention having a socket, an insert member formed in the axial continuation of the socket, a peripheral seal on the insert member, and a pressure sleeve disposed concentrically around the socket and engaging in a peripheral groove in the insert member, and a muff portion partially surrounding the insert member, wherein the pressure sleeve, engaging at least partially over the insert member has means for screwing, inserting, rotating or clamping for connecting the halves of the coupling.
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In the hose coupling according to the invention the force is introduced from the insert member via the pressure sleeve, thus creating more favourable conditions than in prior art connections, wherein the force is introduced from the muff member via the insert member to the socket, which represents the weakest part of the chain, due to the weak place formed by the annular groove in the socket, in which the pressure sleeve engages.
One advantageous embodiment of the invention is characterized in that at the end extending into the muff member of the opposite coupling half the pressure sleeve has as insert means an annular collar whose rear side forms the abutment shoulder for a U-shaped coupling clamp inserted via its arms in bores in the muff member, which it connects to the insert member.
According to a further preferred embodiment of the invention, the insert member has a tapered cylindrical end portion which is inserted to abutment with a snug fit into a matching cylindrical bore portion in the muff member and is sealed off therefrom and stands at a distance from the axial end surface of the bore portion when the coupling clamp is inserted.
In another embodiment of a hose coupling having an insert connection of the kind specified, according to the invention the pressure sleeve has a one-piece axial continuation as muff member, the insert member having an annular collar whose rear sida forms the abutment shoulder for a coupling clamp.
Preferably in this embodiment the insert member has a tapered cylindrical end portion which is inserted with a snug fit into a matching cylindrical bore portion in the axial continuation of the socket and is sealed off therefrom and ; stands at a distance from the axial end surface of the bore portion when the coupling clamp is inserted.
The non-positive connection between the muff member and the pressure sleeve is made via the coupling clamp. Since the coupling clamp can be disposed radially further outside in ' ,~' ,~
.
:. ' , . : .
comparison with prior art coupling constructions, the supporting cross-section is yreater, so that the coupling clamp can absorb more considerable forces.
In addition to the non-positive connection, there is also a positive connection hetween the muff member and the pressure sleeve and insert member if, in a preferred embodiment of the invention, the external diameter of the annular collar on the pressure sleeve or the insert member is equal to the internal diameter of the socket member. Due to the positive connection between the muff member and the insert member or pressure sleeve, in conjunction with the non-positive connection effected by the coupling clamp, these members form in practice a rigid, stable unit. The buckling strength is appreciably higher than in known constructions, but the loadability of the coupling from the inside is also higher.
Another feature of the invention is a hose coupling wherein a muff portion extending as far as the end portion of the insert member moulded onto the socket is moulded on the pressure sleeve. The muff portion can be smoothly cylindrical, as for an insert connection with matching securing pin; ho~ever, the muff portion is preferably formed with an internal screwthreading for screwing it to the matching screwed connection means of the other hose coupling half. Alternatively, the muff portion takes the form of a pressure muff and is rigidly connected by pressing to the matching member of the hose coupling.
Also preferably the insert member tapers conically in the direction of its front end and it is inserted in a matching conical member, the connection being made, for example, by a union nut.
Because of its higher stability, the hose coupling having an insert connection according to the invention can be used for relatively high pressures. It can also absorb pulsating surges. Apart from the coupling clamp, the hose coupling according to the invention has practically no other weak place.
., ~ .
-' ' 131~718 Due to axial distance between the end surface of the insert member and the end surface of the bore portion into which it is inserted, both end surfaces of the socket are acted upon by forces of the pressure medium which cancel one another out in the axial direction with equal surfaces, so that the socket is mounted free from forces inside the hose coupling according to the invention.
In a preferred embodiment of the invention the socket is made of quenched and drawn steel, thus ensuring great strength even with a thin socket wall thickness as required for as low a flow resistance as possible in the hose.
In accordance with one aspect of the invention there is provided a hose coupling, especially for high pressure hoses, having a socket, an insert member formed in the axial continuation of the socket, a peripheral seal on the insert member, and a pressure sleeve disposed concentrically around the socket and engaging in a peripheral groove in the insert member, and a muff portion partially surrounding the insert member, wherein the pressure sleeve, engaging at least partially over the insert member has means for screwing, inserting, rotating or clamping for connecting the coupling.
Two embodiments of the hose coupling having an insert connection according to the invention are illustrated in the drawings wherein:
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a longitudinal section through an embodiment, Fig. 2 is a cross-section, taking along the line A-B in Fig. 1, Fig. 3 shows the original shape of the pressure sleeve, Fig. 4 is a longitudinal section through another embodiment of the hose coupling, Fig. 5 shows the initial state of the muff in one piece with the pressure sleeve, Fig. 6 is a longitudinal section through another embodiment of the hose coupling half, ~t , . ~, ': :
: , :
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. ' ' ' Fig. 7 is a longitudinal section through a corresponding nipple as an intermediate member to the other hose coupling half (not shown), Fig. 8 shows the connection of the members illustrated in Figs. 6 and 7, Fig. 9 is a longitudinal section through another embodiment of one hose coupling half, Fig. 10 shows the correspondingly constructed nipple, and Fig. 11 shows the connection of the two members illustrated in Figs. g and 10, Fig. 12 is a longitudinal section through another embodiment, Fig. 13 shows the nipple corresponding to Fig. 12, Fig. 14 is a longitudinal section of the connection of the members illustrated in Figs. 12 and 13, Fig. 15 shows another embodiment of a hose coupling half, and Fig. 16 shows the associated nipple, Fig. 17 is a longitudinal section of the connection of the members illustrated in Figs. 15 and 16, Fig. 18 is a longitudinal section through another possible embodiment of a hose coupling half having the features of the invention, and Fig. 19-22 show alternative embodiments of hose couplings having modified nipples as intermediate members, to which the opposite hose coupling half is applied.
DETAILED DESCRIPTION OF THE DRAWINGS
Referring to the embodiment of the hose coupling illustrated in Figs. 1 to 3, a hose 1 is slipped onto a socket 2 having at its front end an insert member 3 as a one-piece axial continuation. The insert member 3 has a tapered cylindrical end portion 4 and an annular groove 5. An annular seal 6 is inserted in the periphery of groove 5, which seals the gap between the periphery of the cylindrical end portion 4 and the bore portion 7 of the same internal diameter in a muff member 8. When the end portion 4 is inserted to abutment in the bore portion 7, a gap 10 is left between the bore . . .
,, , .
, .: ', ~ . , .
portion 7 and its end surface 9. The result of the gap 10 is that the pressure medium flowing through the hose coupling exerts a force on both end surfaces of the socket 2 and the insert member 3 unitary therewith. At the same time, the forces operating in opposite directions cancel one another out, so that the socket 2/insert member 3 is mounted in the hose coupling free from forces in the axial direction.
A pressure sleeve 11, disposed concentrically around the socket 2 and having the outline shown in Fig. 3 in the initial condition engages when pressed around via an annular collar 12 in a peripheral annular groove 13 in the socket 2 and is thereby positively connected thereto. The pressure sleeve 11 is continued in the axial direction to partially engaging around the insert member 3. At its end the pressure sleeve 11 has an annular collar 14 whose external diameter is equal to the internal diameter of the muff member 8. By means of a coupling clamp 15 pushed via its arms through bores 16 in muff member 8 pressure sleeve 11, positively connected to socket 2, is axially and immovably connected to muff member 8 by annular collar 14 being secured therein via the arms of coupling clamp 15. At the same time, the rear side of the annular collar 14 forms an abutment surface for the coupling clamp 15.
Fig. 4 shows another embodiment, differing from that illustrated in Fig. 1 mainly by the features that the pressure sleeve lla and muff member 8a are connected to one another in one piece, the insert member 3a has an annular collar 14a, which fits into the muff member 8a and forms with its rear surface the abutment shoulder for the coupling clamp 15, and the front, tapered cylindrical end portion 4a on the insert member 3a engages hermetically in a bore portion 7a in the axial continuation 17 of the socket 2. In this case also the coupling clamp 15 and the portions 4a and 14a of the insert member 3a and those of the muff member 8a, inserted with a snug fit back into one another, produces a positively connected stable and rigid unit.
1 3 1 97 1 ~
In the embodiment illustrated in Fig. 6 a muff portion 18 is moulded in one piece onto the pressure sleeve ll. ~he muff portion 18 encloses at a distance the conical end portion of the insert member 3 and is constructed in the form of a pressure muff which is widened in the released condition.
After insertion of the matching member, for example, a nipple 20 (Fig. 7) with a suitably shaped reception for the conical end of the insert member and an annular groove 21 for the engagement of annular attachment 22 on the mu~f portion 18, the muff portion 18 is then pressed radially inwards and clamped around the nipple 20, as shown in Fig. 8.
A similar construction, but with a smooth cylindrical end portion of the insert member 3, is shown in Figs. 9 and 10 with the members in the released position, and in Fig. 11 as connected.
The embodiment illustrated in Fig. 12 differs from the alternatives shown in Figs. 6 and 9 by an internal screwthreading in the muff portion 18, into which a correspondingly shaped end portion of the nipple 20 is screwed, as the connected position shows in Fig. 14.
The embodiment illustrated in Fig. 15 differs from that illustrated in Fig. 12 merely by the feature that the insert member is not smoothly cylindrical but tapers conically at the end, as is also shown correspondingly in Fig. 6. Fig. 16 shows the fitting nipple with a conical reception for the end of the insert member 3, while Fig. 17 shows the connected position of the two members.
In the embodiment illustrated in Fig. 18 the pressure sleeve 11 is continued in the axial direction in a screwthreaded portion 23 which can be screwed into a corrssponding receiving means in the matching member.
Figs. 19 to 22 show connections of hose coupling halves of the construction illustrated in Figs. 6, 9, 12 and 15 having a fitting nipple bearing, a union nut via which a connection is made to the opposite hose coupling half (not illustrated).
.
.
BACKGROUND OF THE INVENTION
The invention relates to a hose coupling. Hose couplings having insert connections are known, for example, from DIN 20043. These prior art hose couplings having insert connections have the disadvantage that their stability is inadequate to withstand either the prevailing pressures on the line or external mechanical loadings. More particularly, prior art hose couplings having insert connections frequently rupture under pulsating surges, such as often occur in high pressure lines. Weak places include the coupling clamp, but also the place where the pressure sleeve engages with the socket. Another unsatisfactory aspect is the buckling strength of prior art hose couplings having insert connections. When hose couplings are used underground, rocks often drop onto the coupling or somebody accidentally steps on the coupling. Under such loads known insert couplings often break.
An object of the invention is therefore to provide a hose coupling being stable enough to withstand both increased external mechanical loadings, pulsating surges transmitted by the medium in the line, and high internal pressure.
SUMMARY OF_THE INVENT ON
This object is solved by a hose coupling according to the invention having a socket, an insert member formed in the axial continuation of the socket, a peripheral seal on the insert member, and a pressure sleeve disposed concentrically around the socket and engaging in a peripheral groove in the insert member, and a muff portion partially surrounding the insert member, wherein the pressure sleeve, engaging at least partially over the insert member has means for screwing, inserting, rotating or clamping for connecting the halves of the coupling.
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. ~
~:
In the hose coupling according to the invention the force is introduced from the insert member via the pressure sleeve, thus creating more favourable conditions than in prior art connections, wherein the force is introduced from the muff member via the insert member to the socket, which represents the weakest part of the chain, due to the weak place formed by the annular groove in the socket, in which the pressure sleeve engages.
One advantageous embodiment of the invention is characterized in that at the end extending into the muff member of the opposite coupling half the pressure sleeve has as insert means an annular collar whose rear side forms the abutment shoulder for a U-shaped coupling clamp inserted via its arms in bores in the muff member, which it connects to the insert member.
According to a further preferred embodiment of the invention, the insert member has a tapered cylindrical end portion which is inserted to abutment with a snug fit into a matching cylindrical bore portion in the muff member and is sealed off therefrom and stands at a distance from the axial end surface of the bore portion when the coupling clamp is inserted.
In another embodiment of a hose coupling having an insert connection of the kind specified, according to the invention the pressure sleeve has a one-piece axial continuation as muff member, the insert member having an annular collar whose rear sida forms the abutment shoulder for a coupling clamp.
Preferably in this embodiment the insert member has a tapered cylindrical end portion which is inserted with a snug fit into a matching cylindrical bore portion in the axial continuation of the socket and is sealed off therefrom and ; stands at a distance from the axial end surface of the bore portion when the coupling clamp is inserted.
The non-positive connection between the muff member and the pressure sleeve is made via the coupling clamp. Since the coupling clamp can be disposed radially further outside in ' ,~' ,~
.
:. ' , . : .
comparison with prior art coupling constructions, the supporting cross-section is yreater, so that the coupling clamp can absorb more considerable forces.
In addition to the non-positive connection, there is also a positive connection hetween the muff member and the pressure sleeve and insert member if, in a preferred embodiment of the invention, the external diameter of the annular collar on the pressure sleeve or the insert member is equal to the internal diameter of the socket member. Due to the positive connection between the muff member and the insert member or pressure sleeve, in conjunction with the non-positive connection effected by the coupling clamp, these members form in practice a rigid, stable unit. The buckling strength is appreciably higher than in known constructions, but the loadability of the coupling from the inside is also higher.
Another feature of the invention is a hose coupling wherein a muff portion extending as far as the end portion of the insert member moulded onto the socket is moulded on the pressure sleeve. The muff portion can be smoothly cylindrical, as for an insert connection with matching securing pin; ho~ever, the muff portion is preferably formed with an internal screwthreading for screwing it to the matching screwed connection means of the other hose coupling half. Alternatively, the muff portion takes the form of a pressure muff and is rigidly connected by pressing to the matching member of the hose coupling.
Also preferably the insert member tapers conically in the direction of its front end and it is inserted in a matching conical member, the connection being made, for example, by a union nut.
Because of its higher stability, the hose coupling having an insert connection according to the invention can be used for relatively high pressures. It can also absorb pulsating surges. Apart from the coupling clamp, the hose coupling according to the invention has practically no other weak place.
., ~ .
-' ' 131~718 Due to axial distance between the end surface of the insert member and the end surface of the bore portion into which it is inserted, both end surfaces of the socket are acted upon by forces of the pressure medium which cancel one another out in the axial direction with equal surfaces, so that the socket is mounted free from forces inside the hose coupling according to the invention.
In a preferred embodiment of the invention the socket is made of quenched and drawn steel, thus ensuring great strength even with a thin socket wall thickness as required for as low a flow resistance as possible in the hose.
In accordance with one aspect of the invention there is provided a hose coupling, especially for high pressure hoses, having a socket, an insert member formed in the axial continuation of the socket, a peripheral seal on the insert member, and a pressure sleeve disposed concentrically around the socket and engaging in a peripheral groove in the insert member, and a muff portion partially surrounding the insert member, wherein the pressure sleeve, engaging at least partially over the insert member has means for screwing, inserting, rotating or clamping for connecting the coupling.
Two embodiments of the hose coupling having an insert connection according to the invention are illustrated in the drawings wherein:
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a longitudinal section through an embodiment, Fig. 2 is a cross-section, taking along the line A-B in Fig. 1, Fig. 3 shows the original shape of the pressure sleeve, Fig. 4 is a longitudinal section through another embodiment of the hose coupling, Fig. 5 shows the initial state of the muff in one piece with the pressure sleeve, Fig. 6 is a longitudinal section through another embodiment of the hose coupling half, ~t , . ~, ': :
: , :
' ' ~ ' ~ .` ~ . :
. ' ' ' Fig. 7 is a longitudinal section through a corresponding nipple as an intermediate member to the other hose coupling half (not shown), Fig. 8 shows the connection of the members illustrated in Figs. 6 and 7, Fig. 9 is a longitudinal section through another embodiment of one hose coupling half, Fig. 10 shows the correspondingly constructed nipple, and Fig. 11 shows the connection of the two members illustrated in Figs. g and 10, Fig. 12 is a longitudinal section through another embodiment, Fig. 13 shows the nipple corresponding to Fig. 12, Fig. 14 is a longitudinal section of the connection of the members illustrated in Figs. 12 and 13, Fig. 15 shows another embodiment of a hose coupling half, and Fig. 16 shows the associated nipple, Fig. 17 is a longitudinal section of the connection of the members illustrated in Figs. 15 and 16, Fig. 18 is a longitudinal section through another possible embodiment of a hose coupling half having the features of the invention, and Fig. 19-22 show alternative embodiments of hose couplings having modified nipples as intermediate members, to which the opposite hose coupling half is applied.
DETAILED DESCRIPTION OF THE DRAWINGS
Referring to the embodiment of the hose coupling illustrated in Figs. 1 to 3, a hose 1 is slipped onto a socket 2 having at its front end an insert member 3 as a one-piece axial continuation. The insert member 3 has a tapered cylindrical end portion 4 and an annular groove 5. An annular seal 6 is inserted in the periphery of groove 5, which seals the gap between the periphery of the cylindrical end portion 4 and the bore portion 7 of the same internal diameter in a muff member 8. When the end portion 4 is inserted to abutment in the bore portion 7, a gap 10 is left between the bore . . .
,, , .
, .: ', ~ . , .
portion 7 and its end surface 9. The result of the gap 10 is that the pressure medium flowing through the hose coupling exerts a force on both end surfaces of the socket 2 and the insert member 3 unitary therewith. At the same time, the forces operating in opposite directions cancel one another out, so that the socket 2/insert member 3 is mounted in the hose coupling free from forces in the axial direction.
A pressure sleeve 11, disposed concentrically around the socket 2 and having the outline shown in Fig. 3 in the initial condition engages when pressed around via an annular collar 12 in a peripheral annular groove 13 in the socket 2 and is thereby positively connected thereto. The pressure sleeve 11 is continued in the axial direction to partially engaging around the insert member 3. At its end the pressure sleeve 11 has an annular collar 14 whose external diameter is equal to the internal diameter of the muff member 8. By means of a coupling clamp 15 pushed via its arms through bores 16 in muff member 8 pressure sleeve 11, positively connected to socket 2, is axially and immovably connected to muff member 8 by annular collar 14 being secured therein via the arms of coupling clamp 15. At the same time, the rear side of the annular collar 14 forms an abutment surface for the coupling clamp 15.
Fig. 4 shows another embodiment, differing from that illustrated in Fig. 1 mainly by the features that the pressure sleeve lla and muff member 8a are connected to one another in one piece, the insert member 3a has an annular collar 14a, which fits into the muff member 8a and forms with its rear surface the abutment shoulder for the coupling clamp 15, and the front, tapered cylindrical end portion 4a on the insert member 3a engages hermetically in a bore portion 7a in the axial continuation 17 of the socket 2. In this case also the coupling clamp 15 and the portions 4a and 14a of the insert member 3a and those of the muff member 8a, inserted with a snug fit back into one another, produces a positively connected stable and rigid unit.
1 3 1 97 1 ~
In the embodiment illustrated in Fig. 6 a muff portion 18 is moulded in one piece onto the pressure sleeve ll. ~he muff portion 18 encloses at a distance the conical end portion of the insert member 3 and is constructed in the form of a pressure muff which is widened in the released condition.
After insertion of the matching member, for example, a nipple 20 (Fig. 7) with a suitably shaped reception for the conical end of the insert member and an annular groove 21 for the engagement of annular attachment 22 on the mu~f portion 18, the muff portion 18 is then pressed radially inwards and clamped around the nipple 20, as shown in Fig. 8.
A similar construction, but with a smooth cylindrical end portion of the insert member 3, is shown in Figs. 9 and 10 with the members in the released position, and in Fig. 11 as connected.
The embodiment illustrated in Fig. 12 differs from the alternatives shown in Figs. 6 and 9 by an internal screwthreading in the muff portion 18, into which a correspondingly shaped end portion of the nipple 20 is screwed, as the connected position shows in Fig. 14.
The embodiment illustrated in Fig. 15 differs from that illustrated in Fig. 12 merely by the feature that the insert member is not smoothly cylindrical but tapers conically at the end, as is also shown correspondingly in Fig. 6. Fig. 16 shows the fitting nipple with a conical reception for the end of the insert member 3, while Fig. 17 shows the connected position of the two members.
In the embodiment illustrated in Fig. 18 the pressure sleeve 11 is continued in the axial direction in a screwthreaded portion 23 which can be screwed into a corrssponding receiving means in the matching member.
Figs. 19 to 22 show connections of hose coupling halves of the construction illustrated in Figs. 6, 9, 12 and 15 having a fitting nipple bearing, a union nut via which a connection is made to the opposite hose coupling half (not illustrated).
.
.
Claims (12)
1. A hose coupling, especially for high pressure hoses, having a socket, an insert member formed in the axial continuation of the socket, a peripheral seal on the insert member, and a pressure sleeve disposed concentrically around the socket and engaging in a peripheral groove in the insert member, and a muff portion partially surrounding the insert member, wherein the pressure sleeve, engaging at least partially over the insert member has means for screwing, inserting, rotating or clamping for connecting the coupling.
2. A hose coupling according to claim 1, wherein the pressure sleeve at its end extending into a muff member of the opposite coupling half has an annular collar as insert means whose rear side forms the abutment shoulder for a U-shaped coupling clamp inserted via its arms in bores in the muff member, which it connects to the insert member.
3. A hose coupling according to claim 2, wherein the insert member has a cylindrical end portion which is inserted to abutment with a snug fit into a matching cylindrical bore portion in the muff member and is sealed off therefrom and stands at a distance from the axial end surface of the bore portion when the coupling clamp is inserted.
4. A hose coupling according to claim 2, wherein the external diameter of the annular collar on the pressure sleeve is equal to the internal diameter of the muff member into which it is inserted.
5. A hose coupling with insert connection according to claim 1, wherein the pressure sleeve has a one-piece axial continuation as muff member, the insert member having an annular collar whose rear side forms the abutment shoulder for a U-shaped coupling clamp inserted via its arms in bores in the muff member, which connects it to the insert member.
6. A hose coupling according to claim 5, wherein the insert member has a cylindrical end portion which is inserted with a snug fit into a matching cylindrical bore portion in the axial continuation of the socket and is sealed off therefrom and stands at a distance from the axial end surface of the bore portion when the coupling clamp is inserted.
7. A hose coupling according to claim 5, wherein the external diameter of the annular collar on the insert member is equal to the internal diameter of the muff member into which it is inserted.
8. A hose coupling according to claim 1, wherein a muff portion is pressed around the pressure sleeve and is extending as far as the end portion of the insert member.
9. A hose coupling according to claim 8, wherein the muff portion has an internal threading.
10. A hose coupling according to claim 8, wherein the muff portion is a pressure muff.
11. A hose coupling according to claim 1, wherein the insert member tapers conically in the direction of its front end.
12. A hose coupling according to claim 1, wherein the socket is made of hardened and tempered steel.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3635036.2-24 | 1986-10-15 | ||
| DE3635036 | 1986-10-15 | ||
| DEP3725897.4-24 | 1987-08-05 | ||
| DE19873725897 DE3725897A1 (en) | 1986-10-15 | 1987-08-05 | HOSE COUPLING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1319718C true CA1319718C (en) | 1993-06-29 |
Family
ID=25848453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000549279A Expired - Lifetime CA1319718C (en) | 1986-10-15 | 1987-10-14 | Hose coupling |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0264010B1 (en) |
| CN (1) | CN1008209B (en) |
| AU (1) | AU609064B2 (en) |
| CA (1) | CA1319718C (en) |
| DE (2) | DE3725897A1 (en) |
| ES (1) | ES2012477B3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9388927B2 (en) | 2012-04-17 | 2016-07-12 | Ooo “Gruppa Polymerteplo” | Polymer pipe connection assembly |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2637021B1 (en) * | 1988-09-23 | 1993-12-03 | Peugeot Automobiles | DEVICE FOR REGULATING THE FUEL PRESSURE OF AN INJECTION ENGINE HAVING A GREAT EASE OF ASSEMBLY AND DISASSEMBLY |
| DE8904555U1 (en) * | 1989-04-11 | 1989-06-01 | Hutchinson Gummiwarenfabrik Gmbh, 6800 Mannheim | Robot-operated quick coupling, especially for liquid-carrying hoses for connection to coolers or similar units |
| FR2688290B1 (en) * | 1992-03-04 | 1994-06-10 | Peugeot | CONNECTION DEVICE BETWEEN A FLEXIBLE TUBULAR TUNING AND A RIGID TUBULAR TIP, IN PARTICULAR FOR A COOLING CIRCUIT OF A MOTOR VEHICLE. |
| AU691614B2 (en) * | 1994-07-15 | 1998-05-21 | Hansen Developments Limited | A pipe coupling |
| DE29619501U1 (en) * | 1996-11-09 | 1997-01-02 | Rehau Ag + Co, 95111 Rehau | Coupling for suction or pressure hoses |
| GB9717830D0 (en) * | 1997-08-22 | 1997-10-29 | Minnovation Ltd | Water spray nozzle etc for mining |
| DE10338542B4 (en) * | 2003-08-19 | 2013-01-31 | Murrplastik Systemtechnik Gmbh | Screwing device for receiving and clamping connection of hoses |
| DE602004032376D1 (en) * | 2003-12-04 | 2011-06-01 | Eaton Corp | QUICK CONNECTION PIPE COUPLING |
| AT501851B1 (en) * | 2004-07-28 | 2008-05-15 | Bosch Gmbh Robert | CONNECTION OF CABLES FOR HIGH PRESSURE MEDIA |
| ITPD20080009A1 (en) * | 2008-01-10 | 2009-07-11 | Lovato Gas S P A | SEALING CONNECTION SYSTEM BETWEEN TUBULAR SECTIONS, IN PARTICULAR FOR THE SEALED CONNECTION OF A HIGH PRESSURE FUEL GAS FUEL CONDUIT WITH A PRESSURE REDUCER IN INTERNAL COMBUSTION MOTORS FOR SELF-TRACTION |
| DE102011018621A1 (en) * | 2011-04-21 | 2012-10-25 | Mann + Hummel Gmbh | Connecting piece for filter bags |
| CN102874071A (en) * | 2012-10-20 | 2013-01-16 | 杭州祥和实业有限公司 | Coach air conditioning with hose convenient to mount |
| CN103542213A (en) * | 2013-08-19 | 2014-01-29 | 泉州市三星消防设备有限公司 | Fire hose provided with press fitting buckles |
| DE102014102247B4 (en) * | 2014-02-21 | 2017-08-03 | Lemken Gmbh & Co. Kg | Hose plug system of an agricultural distribution machine |
| CN106322009A (en) * | 2016-11-19 | 2017-01-11 | 张红伟 | Sealing ring installing structure of water pipe connector |
| CN113276666A (en) * | 2021-06-25 | 2021-08-20 | 江西昌河汽车有限责任公司 | Truck oil tank with built-in oil filler neck |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973791A (en) * | 1974-10-09 | 1976-08-10 | Hps Company, Inc. | Safety coupling device |
| US4537427A (en) * | 1981-08-21 | 1985-08-27 | Stratoflex, Inc. | Clip for a fluid coupling |
| US4431218A (en) * | 1982-02-05 | 1984-02-14 | Dayco Corporation | Fluid coupling and method of making same |
-
1987
- 1987-08-05 DE DE19873725897 patent/DE3725897A1/en active Granted
- 1987-09-26 EP EP87114105A patent/EP0264010B1/en not_active Expired - Lifetime
- 1987-09-26 DE DE8787114105T patent/DE3761458D1/en not_active Expired - Lifetime
- 1987-09-26 ES ES87114105T patent/ES2012477B3/en not_active Expired - Lifetime
- 1987-10-14 CN CN87106907A patent/CN1008209B/en not_active Expired
- 1987-10-14 CA CA000549279A patent/CA1319718C/en not_active Expired - Lifetime
- 1987-10-15 AU AU79808/87A patent/AU609064B2/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9388927B2 (en) | 2012-04-17 | 2016-07-12 | Ooo “Gruppa Polymerteplo” | Polymer pipe connection assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0264010A1 (en) | 1988-04-20 |
| ES2012477B3 (en) | 1990-04-01 |
| DE3725897A1 (en) | 1988-04-28 |
| CN87106907A (en) | 1988-04-27 |
| AU609064B2 (en) | 1991-04-26 |
| CN1008209B (en) | 1990-05-30 |
| DE3761458D1 (en) | 1990-02-22 |
| DE3725897C2 (en) | 1989-05-03 |
| EP0264010B1 (en) | 1990-01-17 |
| AU7980887A (en) | 1988-04-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |
Effective date: 20100629 |