TWM559384U - Metal tube joint assembly - Google Patents

Abstract

A metal pipe joint assembly for assembling a first pipe body and a second pipe body, the metal pipe joint assembly comprising: a body comprising a screw and a cylinder coaxially connected, and a coaxial through screw and a cylinder The passage of the body, the sleeve system is nested in the first tube body; an adjustment sleeve is sleeved on the outer circumference of the screw shaft in the axial direction; a conical barrel can be axially moved over the screw sleeve The outer circumference of the screw is located between the adjusting sleeve and the cylinder; and an expansion sleeve, the expansion sleeve is bored with a conical screw hole which is screwed with the conical cylinder; wherein the body, the adjusting sleeve and the cone The sleeve expansion sleeve is sleeved into the second tube body, and the tapered screw hole of the expansion sleeve is pressed by the cone barrel to expand the expansion sleeve outward and abut against the inner wall surface of the second tube body .

Description

Metal pipe joint assembly

The present invention relates to a metal pipe joint assembly for joining two metal water pipes to each other.

Metal water pipes are often used in daily life. In the kitchens, bathrooms, underground pipelines of roads, and even in car washes, water pipes are often seen. Take the car wash brushes in the car wash as an example. They are two metal pipes with different thickness. The groups are connected together and a brush is arranged at one end of the thin metal water pipe to facilitate the water to be washed by the brush at the same time when the water is sprayed from one end of the thin metal water pipe; and in order to connect the two different thickness metal water pipes together Usually, a joint assembly is provided between the two metal water pipes so that the liquid can flow from the thicker metal water pipe to the thinner metal water pipe and less leaking from the joint between the two metal water pipes, but currently used The joint assembly has a simple structure and a relatively tight connection relationship with the metal water pipe. Therefore, when the water pressure in the metal water pipe is large or the metal water pipe is swayed by the collision, the joint component is easily released from the metal water pipe. Or the water may leak from the joint between the joint component and the metal water pipe. In addition, it may be because of the long-term use, the connection of the two metal water pipes. Engagement assembly is deformed, leading to leakage problems or can not scalable.

Therefore, the conventional metal pipe joint assemblies currently have their disadvantages and need to be improved.

Therefore, the main purpose of the present invention is to provide a metal pipe joint assembly which can tightly connect two metal water pipes, which is not only easier to loosen in the water pipe, but also does not allow the water pipe to engage the assembly and the water pipe. The seam between the leaks.

The metal tube joint assembly is configured to assemble a first tube body and a second tube body. The metal tube joint assembly comprises a body, an adjustment sleeve, a conical barrel and an expansion sleeve. The body comprises a screw connected coaxially and a cylinder, and a passage coaxially extending through the screw and the cylinder, the cylinder system is sleeved into the first pipe body, and the adjusting sleeve can extend the screw axially Nested on the outer circumference of the screw, the conical barrel can be axially movably sleeved on the outer circumference of the screw and located between the adjustment sleeve and the barrel, the expansion sleeve is located in the adjustment Between the sleeve and the barrel, the expansion sleeve is bored with a conical screw hole that is screwed to the conical barrel, wherein the body, the adjustment sleeve, the conical barrel and the expansion sleeve sleeve Into the second tubular body, the tapered screw hole of the expansion sleeve is pressed by the tapered screw cylinder to expand the expansion sleeve outwardly and against the inner wall surface of the second tubular body.

Preferably, the metal tube joint assembly further includes a first seal ring, the first seal ring is sleeved on the screw rod and located between the cone screw barrel and the barrel body, and the first seal ring can be received by the tube The body and the cone of the cone expand outwardly and abut against the inner wall surface of the second tube.

Preferably, the outer circumference of the cylinder is provided with a groove, and the groove is provided with a second sealing ring, and the second sealing ring is abutted against the inner wall surface of the first pipe body.

Preferably, the outer circumference of the adjusting sleeve is provided with a stopping portion, and the outer diameter of the stopping portion is larger than the minimum inner diameter of the tapered screw hole.

Preferably, the adjusting sleeve is provided with a first screw hole, the tapered screw barrel is disposed with a second screw hole, and the adjusting sleeve and the tapered screw barrel are respectively passed by the first screw hole and the The second screw hole is screwed to the outer circumference of the screw.

Preferably, the outer circumference of the cylinder is provided with a flange for blocking one end of the first pipe body.

Preferably, the expansion sleeve is axially sectioned with a slot extending through the inner and outer wall surfaces of the expansion sleeve and extending to both ends of the expansion sleeve.

Preferably, the expansion sleeve extends at least all of its slots in the axial direction, and the at least all grooves extend through the inner and outer wall surfaces of the expansion sleeve and extend to one end of the expansion sleeve toward the adjustment sleeve.

Preferably, the first screw hole comprises a large diameter section and a small diameter section coaxially connected, and an abutting portion formed between the large diameter section and the small diameter section, the screw system is screwed on The large diameter section is blocked by the abutting portion.

Preferably, the tapered screw is coaxially disposed with an annular inclined surface toward one end of the first sealing ring, and the cylindrical body is provided with a stopping surface toward one end of the first sealing ring, and the annular inclined surface is protruded to the The inner side of the first ring and the stop surface respectively press the two sides of the first seal ring to expand the first seal ring outward and abut against the inner wall surface of the second pipe body.

Therefore, when the user uses the metal tube to join the assembly, first rotating the second tube to drive the expansion sleeve and the conical barrel toward the barrel, the barrel and the conical barrel Squeezing the first seal ring and expanding the first seal ring outwardly against the inner wall surface of the second pipe body to achieve the effect of sealing water in the second pipe body, and when the taper is After the screw is screwed into the screw to reach a certain extent, the two sides of the first sealing ring respectively abut against the tapered screw barrel and the cylindrical body prevents the tapered screw barrel from continuing to screw into the screw, thereby making the screw The conical screw is screwed into the conical screw hole, and the conical screw hole is pressed and tightly engaged by the conical barrel to expand the expansion sleeve outwardly and against the second tube The inner wall surface of the body can tightly fix the metal tube joint assembly to the inner wall surface of the second tube body, thereby completing the step of assembling the metal tube joint assembly to the first tube body and the second tube body. .

The detailed construction and features provided by this creation will be described in the detailed description of the subsequent embodiments. However, those of ordinary skill in the art should understand that the detailed description and specific embodiments of the present invention are merely used to illustrate the present invention and are not intended to limit the scope of the patent application.

Referring to Figures 4 and 5, the metal pipe joint assembly 10 provided by the present invention is used to assemble a first pipe body 70 and a second pipe body 80. The first pipe body 70 and the second pipe body 80 are connected. In the preferred embodiment, the first tube body 70 and the second tube body 80 are preferably a metal tube body, a PVC tube body or a PPR tube body. In other preferred embodiments, it is not limited thereto, and may be a soft tube body such as a rubber tube or a plastic tube. Further, preferably, the second tube body 80 has a larger diameter than the first tube body. 70.

Referring to Figures 1, 2 and 5, the metal pipe joint assembly 10 includes a body 20, an adjustment sleeve 30, a conical barrel 40, an expansion sleeve 50, and a first seal ring 60.

The body 20 includes a screw 22 and a barrel 24 coaxially connected, and a channel 26. In the preferred embodiment, the screw 22 and the barrel 24 are integrally formed. In other preferred embodiments, the screw 22 and the barrel The body 24 can also be separately manufactured and assembled with each other; the outer circumference of the screw 22 is provided with a thread 23, and the barrel 24 is sleeved into the first tube body 70. The outer circumference of the barrel body 24 is provided with a groove 25, and the groove 25 is provided. A second sealing ring 27 is disposed. The second sealing ring 27 abuts against the inner wall surface of the first pipe body 70 and prevents water from leaking from the first pipe body 70. The outer periphery of the cylinder body 24 is provided with a flange 28 Preferably, the flange 28 is adjacent to the joint of the cylinder 24 and the screw 22, the flange 28 is for blocking one end of the first tubular body 70, and the tubular body 24 is provided with a stop surface toward the end of the first sealing ring 60. 29, further, the stopping surface 29 is disposed at the junction of the barrel 24 and the screw 22 and is disposed at the outer edge of the screw 22. The passage 26 is coaxially penetrated through the screw 22 and the barrel 24 and is used for the water supply flow.

The adjusting sleeve 30 can be sleeved on the outer circumference of the screw 22 by axially moving the screw 22, and further, the adjusting sleeve 30 is disposed through a first screw hole 32, and the adjusting sleeve 30 is passed through the first screw hole. 32 is screwed on the outer circumference of the screw 22 and can be moved toward or away from the cylinder 24. It is worth mentioning that the first screw hole 32 includes a large diameter section 322 and a small diameter section 324 which are coaxially connected, and is formed. The screw 22 is screwed to the large diameter section 322 and blocked by the abutting portion 326 at an abutting portion 326 between the large diameter portion 322 and the small diameter portion 324. A stopper portion 34 is disposed around the outer circumference of the adjustment sleeve 30.

The conical barrel 40 is axially movably sleeved on the outer circumference of the screw 22 and located between the adjustment sleeve 30 and the barrel 24. Further, the conical barrel 40 extends axially. a second screw hole 42 is provided on the outer circumference of the screw 22 by the second screw hole 42 , so that the cone screw 40 can move between the adjustment sleeve 30 and the barrel 24 , and the cone The outer circumference of the screw barrel 40 is provided with a thread 44. The annular barrel 40 is coaxially disposed with an annular inclined surface 46 toward the first end of the first sealing ring 60. The annular inclined surface 46 is annularly disposed on the second screw hole 42.

Referring to FIGS. 1 to 3, the expansion sleeve 50 is a hollow cylinder and is sleeved on the outer circumference of the conical barrel 40. The expansion sleeve 50 is located between the adjustment sleeve 30 and the barrel 24, and the expansion sleeve 50 is extended. A tapered screw hole 52 that is screwed into the conical barrel 40 is axially inserted. Further, the expansion sleeve 50 is screwed to the outer circumference of the conical barrel 40 by the conical screw hole 52. 44; the expansion sleeve 50 is axially sectioned with a slot 54 extending through the inner wall surface 53 and the outer wall surface 55 of the expansion sleeve 50 and extending to both ends of the expansion sleeve 50; In the preferred embodiment, the number of slots 56 is three. In other preferred embodiments, the number of slots 56 is not limited thereto. The three slots 56 and the slot 54 are evenly disposed. On the outer circumference of the expansion sleeve 50, the slit 56 extends through the inner wall surface 53 and the outer wall surface 55 of the expansion sleeve 50 and extends to one end of the expansion sleeve 50 toward the adjustment sleeve 30; further, is disposed on the outer circumference of the adjustment sleeve 30. The outer diameter of the stop portion 34 is larger than the minimum inner diameter of the tapered screw hole 52.

The first ring 60 is sleeved on the screw 22 and located between the cone barrel 40 and the barrel 24. When the cone barrel 40 approaches the barrel 24, the first ring 60 can be received by the barrel 24 and the cone. The barrel 40 is expanded outwardly by extrusion, and further, when the conical barrel 40 approaches the barrel 24, the annular bevel 46 at one end of the conical barrel 40 projects to the first seal 60. The inner side of the first sealing ring 60 is expanded outwardly and the first sealing ring 60 is outwardly expanded and abuts against the second tube 80. Inner wall surface.

The body 20, the adjusting sleeve 30, the conical barrel 40 and the expansion sleeve 50 are sleeved into the second tube 80, wherein the conical screw hole 52 of the expansion sleeve 50 can be squeezed by the conical barrel 40. In turn, the expansion sleeve 50 is outwardly expanded and abuts against the inner wall surface of the second tube body 80, and the first seal ring 60 can be expanded outwardly by the barrel 24 and the conical barrel 40 and abuts against the second The inner wall surface of the tubular body 80.

In summary, when the user uses the metal tube joint assembly 10, first, the first seal ring 60 is first sleeved on the screw 22, then the tapered screw barrel 40 is screwed to the screw 22 and the first seal ring 60 is placed on the cone. Between the screw barrel 40 and the cylinder 24, the expansion sleeve 50 is sleeved on the outer circumference of the conical barrel 40, and then the adjustment sleeve 30 is screwed to the screw 22 until the screw 22 blocks the abutment portion 326. After the metal pipe joint assembly 10 is assembled, one end of the first pipe body 70 is sleeved on the outer circumference of the cylinder body 24, and the second pipe body 80 is sequentially sleeved with the adjustment sleeve 30, the expansion sleeve 50, and the first The tubular body 70 is sleeved at one end of the tubular body 24. At this time, the inner wall surface of the second tubular body 80 and the outer peripheral edge of the expansion sleeve 50 are in a tightly fitting state, and then the second tubular body 80 is rotated to drive the expansion sleeve 50 and The tapered barrel 40 approaches the barrel 24, and the barrel 24 and the conical barrel 40 press the first seal ring 60 and expand the first seal ring 60 outwardly against the second tube 80. The wall surface, and further, the annular bevel 46 at one end of the conical barrel 40 projects to the inside of the first seal ring 60 and supports the first seal ring 60 radially outward. The first sealing ring 60 is outwardly expanded and abuts against the inner wall surface of the second tubular body 80 so as to seal the water to the second tubular body 80. The effect is that when the conical barrel 40 is screwed into the screw 22 to a certain extent, the two sides of the first sealing ring 60 respectively abut against the conical barrel 40 and the barrel 24 so that the conical barrel 40 cannot continue. The screw is threaded into the screw 22, and the conical barrel 40 is screwed into the conical screw hole 52. The conical screw hole 52 is pressed by the conical barrel 40 and tightly fitted, thereby causing the expansion sleeve 50 to Externally expanding and abutting against the inner wall surface of the second pipe body 80, the entire metal pipe joint assembly 10 can be tightly fixed to the inner wall surface of the second pipe body 80, thereby completing the assembly of the metal pipe joint assembly 10 to the first pipe body. 70 and the second tube 80 steps.

Next, the step of loosening the metal pipe joint assembly 10 to the second pipe body 80 will be described. First, the second pipe body 80 is rotated to move the expansion sleeve 50 toward the adjustment sleeve 30, since the taper hole of the expansion sleeve 50 at this time The inner wall surface of the 52 is tightly engaged with the conical barrel 40, so that the conical barrel 40 is simultaneously moved toward the adjustment sleeve 30 until the end of the conical barrel 40 toward the adjustment sleeve 30 abuts against the adjustment sleeve 30. Since the conical barrel 40 can no longer approach the adjustment sleeve 30, the expansion sleeve 50 is rotated back to the conical barrel 40, thereby causing the expansion sleeve 50 to retract, so that the second tube 80 can be The step of releasing the expansion sleeve 50 is completed. It is worth mentioning that since the expansion sleeve 50 has been loosened from the second tube 80, the first tube body 70 together with the entire metal tube joint assembly 10 can be second. The tubular body 80 is axially moved and housed inside the second tubular body 80 for storage purposes. Based on the above description, the metal pipe joint assembly 10 provided by the present invention not only has the advantages of convenient adjustment, disassembly and storage, but also has the advantages of better overall structural strength.

Finally, it must be explained again that the constituent elements disclosed in the foregoing embodiments are merely illustrative and are not intended to limit the scope of the present invention. The substitution or variation of other equivalent elements should also be the scope of the patent application of the present application. Covered.

10‧‧‧Metal pipe joint assembly
20‧‧‧ body
22‧‧‧ screw
23‧‧‧ thread
24‧‧‧Cylinder
25‧‧‧ Groove
26‧‧‧ channel
27‧‧‧Second ring
28‧‧‧Flange
29‧‧‧stop surface
30‧‧‧Adjustment sleeve
32‧‧‧First screw hole
322‧‧‧ Large diameter section
324‧‧‧Small path
326‧‧‧Abutment
34‧‧‧stops
40‧‧‧Conical screw barrel
42‧‧‧Second screw hole
44‧‧‧ thread
46‧‧‧Circular bevel
50‧‧‧Expansion sleeve
52‧‧‧Conical screw holes
53‧‧‧ inner wall
54‧‧‧ slotting
55‧‧‧ outer wall
56‧‧‧ slotting
60‧‧‧ first ring
70‧‧‧First tube
80‧‧‧Second body

Figure 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is an exploded view of a preferred embodiment of the present invention. Figure 3 is a perspective view of the expansion sleeve in the creation. Figure 4 is a perspective view of the metal pipe joint assembly assembled to the first pipe body and the second pipe body in the present invention. Fig. 5 is a partial cross-sectional view showing the metal pipe joint assembly assembled to the first pipe body and the second pipe body in the present invention.

Claims (10)

A metal pipe joint assembly for assembling a first pipe body and a second pipe body, the metal pipe joint assembly comprising: a body including a screw and a cylinder coaxially connected, and a coaxial through the screw And the passage of the cylinder, the cylinder system is nested in the first pipe body; an adjusting sleeve, the screw can be axially moved to be sleeved on the outer circumference of the screw; a conical screw barrel can be extended The screw is axially movably sleeved on the outer circumference of the screw and located between the adjusting sleeve and the cylinder; and an expansion sleeve is located between the adjusting sleeve and the cylinder, and the expansion sleeve is disposed a conical screw hole that is screwed into the conical barrel; wherein the body, the adjustment sleeve, the conical barrel and the expansion sleeve are nested in the second tube, and the expansion sleeve has a taper The screw hole is pressed by the tapered barrel to expand the expansion sleeve outwardly and against the inner wall surface of the second tube. The metal pipe joint assembly of claim 1, further comprising a first seal ring, the first seal ring sleeved on the screw and located between the cone screw barrel and the cylinder body, the first The seal ring may be outwardly expanded by the barrel and the tapered barrel to abut against the inner wall surface of the second tube. The metal pipe joint assembly of claim 1, wherein the outer circumference of the cylinder is provided with a groove, the groove is provided with a second seal ring, and the second seal ring is abutted against the first The inner wall surface of a pipe body. The metal pipe joint assembly of claim 1, wherein the outer circumference of the adjusting sleeve is provided with a stopping portion, and the outer diameter of the stopping portion is larger than the minimum inner diameter of the tapered screw hole. The metal pipe joint assembly of claim 1, wherein the adjusting sleeve is provided with a first screw hole, the tapered screw barrel is provided with a second screw hole, the adjusting sleeve and the cone screw barrel The first screw hole and the second screw hole are respectively screwed to the outer circumference of the screw. The metal pipe joint assembly of claim 1, wherein the outer peripheral edge of the cylinder is provided with a flange for blocking one end of the first pipe body. The metal pipe joint assembly of claim 1, wherein the expansion sleeve is axially sectioned with a slot extending through the inner and outer wall surfaces of the expansion sleeve and extending to the expansion sleeve. Both ends. The metal pipe joint assembly of claim 7, wherein the expansion sleeve extends at least all of the grooves in the axial direction, the at least all grooves extending through the inner and outer wall surfaces of the expansion sleeve and extending to the expansion sleeve The barrel faces one end of the adjustment sleeve. The metal pipe joint assembly of claim 5, wherein the first screw hole system comprises a large diameter section and a small diameter section coaxially connected, and is formed between the large diameter section and the small diameter section. An abutting portion is screwed to the large diameter section and blocked by the abutting portion. The metal pipe joint assembly of claim 2, wherein the tapered screw is coaxially disposed with an annular inclined surface toward one end of the first seal ring, and the tubular body is provided with a stop toward one end of the first seal ring. The annular bevel protrudes to the inner side of the first seal ring and presses the two sides of the first seal ring with the stop surface to respectively expand the first seal ring outward and abut the second The inner wall surface of the pipe body.