WO2010051670A1

WO2010051670A1 - A simple connecting hose

Info

Publication number: WO2010051670A1
Application number: PCT/CN2008/073502
Authority: WO
Inventors: 岑利泽
Original assignee: Cen Lize
Priority date: 2008-11-07
Filing date: 2008-12-15
Publication date: 2010-05-14
Also published as: CN201318522Y; CN102016379B; CN102016379A

Abstract

A simple connecting hose for fluid transportation pipe comprises a high pressure hose (1) and connecting heads (2,3) set on both ends of the high pressure hose. One of the connecting heads includes a first housing (31), a second housing (32) and a connecting sleeve (33), each one of which has an inner liquid passage. The two ends of the connecting plug are mounted inside the first and the second housing respectively and therefore all the liquid passages are communicated with each other. The axis of the first housing is in parallel with or coincides with that of the connecting plug and intersects the axis of the second housing. Sealing elements are provided between the exterior wall of the connecting plug and the corresponding liquid passages. At least one of the two housings can freely rotate along the circumference of the connecting plug. Because the high pressure hose does not rotate together with the other parts of the simple connecting hose during assembling, it is convenient for installation.

Description

A simple connecting hose

The invention relates to a plumbing fitting, in particular to a simple connecting hose for a water supply pipeline.

Background technique

It is known to use a combination of a connecting hose and other plumbing fittings for fluid delivery, such as the Chinese patent CN200989497Y published on December 12, 2007, which discloses a composite high pressure hose comprising an inner rubber layer tube and a steel braided coating wrapped on the outer side. The laminate and the outer layer having an acid-resistant medium property are coated with an adhesive layer on both sides of the steel-bonded pressure-resistant layer. Normally, this connecting hose must be used simultaneously with the regulating valve, the flow of the connecting hose can be adjusted by the regulating valve, or the connecting hose can be shut off for the inspection of the downstream piping and related equipment, which is relatively high in cost and at the same time The size of the regulating valve is relatively large, and it often appears to interfere with other components during installation, which increases the difficulty of installation. In response to this deficiency, the inventor filed a patent application entitled "An Improved High-Pressure Hose" to the State Intellectual Property Office of China on September 5, 2008 (Application No.: 200820145456. 7), with reference to Figure 5 and Figure 6, the structure is as follows: the connecting hose comprises a high pressure resistant pipe and a connecting head 2 ' and a connecting head 4' provided at both ends of the pipe, wherein the connecting head 4' is provided with a regulating valve 5' for adjusting the flow of the pipe, The regulating valve 5' is composed of a valve body 51', a spherical valve core 52', a sealing ring 53', a sealing ring 54', a fixing piece 55' and an adjusting rod 56'. The valve body 5 is provided with a 90-degree angle. The liquid passage, one end of the valve body 5 is integrally formed with the connecting head 4', the spherical valve core 52' is disposed in the liquid passage of the valve body 5, and the spherical valve core 52' is provided with a liquid through hole 521 ', and the sealing ring 53' And the sealing ring 54' is respectively disposed between the valve body 5 两侧 and the spherical valve core 52 ′ on both sides of the spherical valve core 52 ′, and the fixing piece 55 ′ is disposed on the outer side of the sealing ring 54 ′ The inner seal ring 54' is loosened, and the adjusting rod 56' can be turned The valve body 51 is disposed on the valve body 51. One end of the adjusting rod 56' is rotatably connected to the spherical valve core 52', and the other end of the adjusting rod 56' extends to the outside of the valve body 5. The connecting hose reduces the size of the regulating valve 5' and is integrated with the connecting head 4', thereby significantly reducing the cost and increasing the convenience of installation, but the connecting hose of this structure also has disadvantages. During the installation process, when the valve body 5 is screwed into the end of the water supply pipe, the entire pipe connected through the connection head 4' will rotate, which is quite inconvenient to operate, and even more, when the end of the water supply pipe is located at the wall. When there are other fluid pipes near the corner or near the end of the water supply pipe, the valve body 5, together with the pipe on it, may not be installed due to insufficient space when rotating.

Summary of the invention

It is an object of the present invention to provide a simple connecting hose that is easy to install.

The technical solution adopted by the present invention is as follows: a simple connecting hose, including a high pressure hose and a high pressure hose a connecting end of the two ends, wherein the connecting head comprises a first housing, a second housing and a connecting sleeve provided with an internal liquid passage, and the two ends of the connecting sleeve are respectively disposed on the first housing and the second housing In the liquid passage, the liquid passages of the three are communicated, and the axial lines of the first casing and the connecting sleeve are parallel or recombined to intersect the axial line of the second casing, and the outer wall of the connecting sleeve is A sealing device is disposed between the corresponding liquid passages, and at least one of the first housing and the second housing is free to rotate circumferentially with respect to the connecting sleeve.

The connecting sleeve provided by the foregoing technical solution in the foregoing technical solution is freely rotatable in the circumferential direction relative to the first housing, and the technical solution adopted by the present invention further includes: the connecting sleeve is adjacent to the end of the first housing and the first The housing is connected by a threaded interference fit, the thread is a left-handed thread; the other end of the connecting sleeve is provided with a positioning ring groove, the positioning ring groove extends into the liquid passage opening of the second casing, in the second A screw hole is formed in one end of the housing adjacent to the connecting sleeve, and the screw hole has a positioning screw. The bottom end of the positioning screw can extend into the positioning ring groove, and the bottom end of the screw and the bottom of the positioning ring groove have a gap.

The invention may also be that the connecting sleeve is freely rotatable in the circumferential direction relative to the second casing, and the technical solution adopted by the invention further comprises: connecting one end of the connecting sleeve close to the first casing to the first casing through a threaded interference fit The thread is a left-handed thread; the other end of the connecting sleeve is provided with a positioning ring groove, the positioning ring groove extends into the liquid passage opening of the second casing, and is adjacent to the end of the connecting sleeve on the second casing A screw hole is provided, and the screw hole has a positioning screw, and the bottom end of the positioning screw can extend into the positioning ring groove, and a gap is left between the bottom end of the screw and the bottom of the positioning ring groove.

Preferably, the connecting sleeve described in the present invention has a tubular structure, the liquid passage is located on the axial center line of the connecting sleeve, and two annular grooves with sealing rings are disposed in the middle of the outer side wall of the outer sleeve of the connecting sleeve, The outer circumference of the seal ring is pressed into the ports of the first and second housing liquid passages, respectively.

For ease of processing and use, the axial center of the first housing and the connecting sleeve to be invented in the invention is combined and perpendicular to the axis of the second housing.

The invention also provides a simple connection hose which is convenient to use on the basis of the foregoing technical solutions, and the technical solution adopted by the invention further includes: the first housing or the second housing is provided with a regulating valve.

By adopting the foregoing technical solution, the beneficial effects of the present invention are: connecting the first housing and the second housing through the connecting sleeve, and the connecting sleeve can be circumferential with respect to at least one of the first housing and the second housing Rotating freely, so that when the first housing is screwed to the water supply pipe nozzle when installing the present invention, the second housing together with the high pressure hose thereon does not need to rotate circumferentially along with the first housing, This makes the installation of the simple connection hose greatly reduced by the space position of the fluid pipe, and the installation is more convenient.

DRAWINGS Figure 1 is an exploded perspective view of the first embodiment;

Figure 2 is an exploded perspective view of the connector of Figure 1;

Figure 3 is a perspective view of the connecting sleeve of Figure 2;

Figure 4 is an exploded perspective view of the connector of the second embodiment;

Figure 5 is an exploded perspective view of a known connecting hose;

Figure 6 is an exploded perspective view of the connector of Figure 5.

detailed description

Referring to FIG. 1, FIG. 2 and FIG. 3, the first embodiment discloses a simple connecting hose, which comprises a high-pressure hose 1 and a connecting head 2 and a connecting head 3 disposed at two ends of the high-pressure hose 1, the connecting head 2 It is used for connection with downstream pipelines or facilities, and its structure is well known and will not be repeated here. The connector 3 includes a first housing 31, a second housing 32, a connecting sleeve 33, a 0-type sealing ring 34, a 0-type sealing ring 35, and a regulating valve 4, and the regulating valve 4 includes a valve body 41 and a spherical valve. The core 42, the gasket 43, the gasket 44, the threaded sleeve 45 and the adjusting rod 46, the structure of the regulating valve 4 and the relative positional relationship of the components are fully and described in detail in the background art, in order to make the sealing effect more Preferably, only the sealing gaskets 43, 44 are replaced by the sealing gaskets 43, 44, and the fixing sleeve 55' in the background art is replaced by the threaded sleeve 45, and the threaded sleeve 45 is screwed to the liquid passage of the valve body 41. On the internal thread, the gasket 44 is positioned, and the rest will not be repeated here. On the basis of the above, the first housing 31 is integrally formed with the valve body 41, and is collectively referred to as a first housing 31. The first housing 31 is provided with a liquid passage therein, and the liquid passage is located in the first housing 31. The end opening connected to the connecting sleeve 33 is provided with a positioning step 311 whose inner diameter is contracted, the second housing 32 is provided with a liquid passage, and the second housing 32 is connected to the high pressure hose 1 and the second shell The liquid passage at the other end of the body 32 is provided with an internal thread, and the connecting sleeve 33 has a tubular structure, and the axial lines of the first casing 31 and the connecting sleeve 33 are coincident or coaxial, and the axial lines of the two are The axial center line of the second casing 32 is perpendicular, and the connecting sleeve 33 is provided with a liquid passage 331. The liquid passage 331 is disposed along the axial center line direction of the connecting sleeve 33, and is located at the middle of the outer side wall of the connecting sleeve 33. Two annular grooves 332, 333 are provided. The end of the outer sleeve of the connecting sleeve 33 is provided with an outwardly protruding stop ring 334 on the outer side wall thereof. The outer diameter of the stop ring 334 It is larger than the inner diameter of the positioning step 311, so that when the connecting sleeve 33 penetrates from the left end of the first housing 31 and moves to the right (as shown in the figure) The direction shown in 2), the stop ring is located inside the positioning step, and the stop ring 334 is blocked by the positioning step 311, so that when the respective components of the regulating valve 4 are disposed in the first housing 31 (ie, the valve body 41) When the axial position of the connecting sleeve 33 is relatively positioned, the 0-shaped sealing ring 35 is mounted on the annular groove 333, and the outer circle of the 0-shaped sealing ring 35 is pressed into the port of the liquid passage of the first housing 31, so that The connecting sleeve 33 and the first casing 31 can be relatively freely rotated in the circumferential direction without liquid leakage; the connecting sleeve 33 and the second The outer side wall of the end of the housing 32 is provided with an external thread, the external thread is connected with the internal thread on the second housing 32, and the 0-type sealing ring 34 is disposed on the ring groove 332. The outer circumference of the sealing ring 34 is pressed into the port of the second housing liquid passage for preventing liquid from leaking between the two mating faces, so that when the connecting sleeve 33 is screwed into the second housing 32 by the external thread When the thread is on, the two are relatively positioned. In this case, the first housing 31, the second housing 32, the connecting sleeve 33 and the regulating valve 4 are integrally connected, and the first housing 31 is opposite to the connecting sleeve 33 and The second housing 32 is free to rotate in the circumferential direction, and both ends of the liquid passage 331 communicate with the liquid passages of the first housing 31 and the second housing 32, respectively.

The invention may also be that the connecting sleeve 33 is freely rotatable in the circumferential direction relative to the second casing 32, and the technical solution adopted in the foregoing embodiment is substantially the same, only the one end of the connecting sleeve 33 is adjacent to the first casing 31 and The first housing 31 is connected by a threaded interference fit, the thread being a left-handed thread, such that when the first housing 31 is screwed into the end of the water supply conduit, the first housing 31 is connected by a left-hand thread during installation of the present invention. The connecting sleeve 33 does not loosen and exit, but is more tightly tightened; the other end of the connecting sleeve 33 is provided with a positioning ring groove, and the positioning ring groove extends into the liquid passage opening of the second casing 32, A screw hole is defined in an end of the second casing 32 adjacent to the connecting sleeve 33. The screw hole has a positioning screw therein. The bottom end of the positioning screw can extend into the positioning ring groove, and the bottom end of the screw and the positioning ring groove A gap is left in the bottom, which allows the coupling sleeve 33 to be axially positioned and free to rotate relative to the second housing 32 in the circumferential direction. The screw hole opening can be plugged with a plug to maintain the appearance.

Of course, in the implementation of the present invention, the connecting sleeve 33 can be freely rotated in the circumferential direction relative to the first housing 31 and the second housing 32. In the foregoing embodiment, the connecting sleeve 33 and the first The connection of a casing 31 adopts a stop ring 334 structure, and the connection between the connection sleeve 33 and the second casing 32 adopts a structure in which a positioning ring groove and a screw are axially positioned.

It should be noted that, in some cases, the simple connecting hose does not include the regulating valve 4, and the first housing 31 only includes a hollow member having a liquid passage on the inner side, which can also realize the present invention. purpose.

Referring to FIG. 4, the second embodiment discloses another simple connecting hose, which differs from the first embodiment in the regulating valve 5, and the type between the two sides of the spherical valve body 52 of the regulating valve 5 and the valve body 51 is type 0. The sealing ring 53 and the 0-type sealing ring 54 are sealed. At this time, it is only necessary to screw the fixing piece 55 into the internal thread of the liquid passage of the valve body 51 until the 0-type sealing ring 53 is pressed against the spherical valve body 52. The structure of the regulating valve has been described in detail in the background art. The structure and connection relationship of the first housing, the second housing and the connecting sleeve of the second embodiment are the same as those of the first embodiment.

It should be noted that the preferred structure of the present invention is the various components including the high pressure hose disclosed in the embodiments, but as understood by those skilled in the art, other hoses having the liquid delivery function are replaced. The high-pressure hose to which the present invention relates is considered to be an equivalent replacement of the technical features, and is within the scope of the claims of the present invention.

Claims

Claim

A simple connecting hose comprising a high pressure hose and a joint provided at both ends of the high pressure hose, wherein: one of the joints comprises a first casing and a second casing provided with an internal liquid passage And a connecting sleeve, the two ends of the connecting sleeve are respectively disposed in the liquid passages of the first housing and the second housing, so that the liquid passages of the three are connected, and the axial center of the first housing and the connecting sleeve Parallel or recombining intersecting the axis line of the second housing, and a sealing device is disposed between the outer wall of the connecting sleeve and the corresponding liquid passage, at least one of the first housing and the second housing may be It is free to rotate in the circumferential direction with respect to the connecting sleeve.

2. The simple connecting hose according to claim 1, wherein: an end of the connecting sleeve adjacent to the first housing is provided with an outwardly protruding stop ring, and the first shell opposite to the end The inner diameter of the liquid passage opening of the body is contracted to form a positioning step, and the stop ring is located inside the positioning step; the other end of the connecting sleeve is connected with the liquid passage of the second housing by a threaded interference fit.

3. The simple connection hose according to claim 1, wherein: one end of the connecting sleeve adjacent to the first housing is connected to the first housing by a threaded interference fit, the thread being a left-handed thread; The other end of the sleeve is provided with a positioning ring groove, the positioning ring groove extends into the liquid passage opening of the second casing, and a screw hole is formed in one end of the second casing near the connecting sleeve, and the screw hole has The positioning screw has a bottom end that can extend into the positioning ring groove, and a gap is left between the bottom end of the screw and the bottom of the positioning ring groove.

The simple connecting hose according to claim 1 or 2 or 3, wherein: the connecting sleeve is a tubular structure, and the liquid passage is located on the axial center line of the connecting sleeve, and the outer side wall of the connecting sleeve The middle portion is provided with two annular grooves provided with sealing rings, and the outer circles of the two sealing rings are respectively pressed into the ports of the first casing and the second casing liquid passage.

The simple connecting hose according to claim 1 or 2 or 3, wherein the axial center of the first casing and the connecting sleeve are combined and perpendicular to the axial line of the second casing.

The simple connecting hose according to claim 1 or 2 or 3, wherein the first casing or the second casing is provided with a regulating valve.