CN213299126U

CN213299126U - Threaded connection thin-wall stainless steel water supply pipe and water supply pipe combination

Info

Publication number: CN213299126U
Application number: CN202021808005.4U
Authority: CN
Inventors: 庞明; 张秀泉; 李营; 刘鹏
Original assignee: Zibo Urban Planning Design Institute
Current assignee: Zibo planning and Design Institute Co.,Ltd.
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-05-28
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a thread-type connected thin-wall stainless steel water supply pipe and a water supply pipe combination, which comprises a water supply pipe assembly; the water supply pipe assembly comprises a water supply pipe and an outer sleeve which is installed on the outer side of the water supply pipe in a threaded mode; the water supply pipe is a reducing pipe body which is made of thin-wall stainless steel and is provided with a threaded connector at two ends; the outer sleeve and the water supply pipe are pressed and fixed through a sealing piece; the sealing element comprises a compression nut and a rubber sealing ring; the compression nut is in threaded connection with the first internal thread of the outer sleeve; the rubber sealing ring is clamped in the inner clamping groove; the outer sleeve is in threaded connection with the threaded connector of the water supply pipe through second internal threads; the utility model discloses a thin wall stainless steel feed pipe and feed pipe combination are connected to the screw thread formula, connect safe and reliable more, and intensity is high, and anti-vibration has avoided the pipeline that house vibration, water hammer vibration, pipeline resonance, slight earthquake etc. caused to become flexible effectively.

Description

Threaded connection thin-wall stainless steel water supply pipe and water supply pipe combination

Technical Field

The utility model relates to a thin wall stainless steel feed pipe and feed pipe combination are connected to threaded formula belongs to feed pipe subassembly technical field.

Background

Along with the improvement of living standard of people, the requirements of people on energy conservation, environmental protection and improvement of living quality are higher and higher. Galvanized steel pipes, which have been used in large quantities in water supply piping systems of construction works for a long time in the past, are being gradually replaced by plastic pipes and stainless steel pipes. Because the stainless steel pipeline has good corrosion resistance, good water supply quality, high pipeline strength and long service life of up to 70 years, the stainless steel pipeline is more economical and more environment-friendly than galvanized steel pipes, plastic pipes and the like, and is gradually widely applied.

At present, the thin-wall stainless steel pipe is widely used in simple and convenient connection modes such as taper thread connection and the like due to the characteristics of high strength and good toughness. However, in the construction process, if the operational key points of the working procedures are not well controlled, common quality problems such as leakage and the like can occur, material waste can also be caused, and undesirable economic loss can occur. Therefore, in order to solve the above problems, it is desirable to design a threaded connection thin-walled stainless steel water supply pipe and a water supply pipe combination.

Disclosure of Invention

In order to solve the problem, the utility model provides a thin wall stainless steel feed pipe and feed pipe combination are connected to threaded type connects more safe and reliable, and intensity is high, and the pipeline that causes is not hard up to the anti-vibration, has avoided house vibration, water hammer vibration, pipeline resonance, slight earthquake etc. effectively.

The utility model relates to a thread-type connection thin-wall stainless steel water supply pipe and a water supply pipe combination, which comprises a water supply pipe assembly; the water supply pipe assembly comprises a water supply pipe and an outer sleeve which is installed on the outer side of the water supply pipe in a threaded mode; the water supply pipe is a reducing pipe body which is made of thin-wall stainless steel and is provided with a threaded connector at two ends; the outer sleeve and the water supply pipe are pressed and fixed through a sealing piece; the sealing element comprises a compression nut and a rubber sealing ring; the inner side of the end part of the outer sleeve is sequentially provided with a first internal thread, an internal clamping groove and a second internal thread from outside to inside along the axial direction of the outer sleeve; the compression nut is in threaded connection with the first internal thread of the outer sleeve; the rubber sealing ring is clamped in the inner clamping groove and is tightly pressed and fixed between the outer sleeve and the water supply pipe through a compression nut; the outer sleeve is in threaded connection with the threaded connector of the water supply pipe through second internal threads, and when the outer sleeve is installed, the outer sleeve is installed on the outer side of the water supply pipe through second internal threads; then, sleeving a rubber sealing ring on the periphery of the water supply pipe, and pressing the rubber sealing ring into a gap between the water supply pipe and the outer sleeve; then, two parts of the split type compression nut are respectively clamped on the periphery of the outer sleeve and are screwed between the outer sleeve and the water supply pipe through an open end wrench, so that the two parts of the compression nut can be assembled at the end part of the outer sleeve and are connected with a first internal thread of the outer sleeve in a threaded manner; the rubber sealing ring is pressed in the inner clamping groove by the compression nut, so that the rubber sealing ring can deform and expand under the axial compression action of the compression nut, and the outer sleeve and the water supply pipe are sealed by radial expansion of the rubber sealing ring; meanwhile, the outer sleeve and the water supply pipe are fixedly connected and thrust-fixed through the sealing piece in a threaded manner, so that the thread is prevented from being disengaged.

Further, the pitch of the threads of the first internal thread is larger than that of the second internal thread.

As a preferred embodiment, the compression nut is formed by assembling and matching two symmetrically arranged split type assembling parts, the compression nut is arranged into the two split type assembling parts, so that the compression nut can be clamped and sleeved on the periphery of the water supply pipe, the installation of the compression nut is convenient, and the split type compression nuts with different inner diameters can be selectively installed according to the outer diameter of the water supply pipe.

Furthermore, the lower ends of the two split type assembling parts are fixedly connected through a clamp, the upper ends of the two split type assembling parts are tightly pressed and fixed at the end part of the outer sleeve through an open end wrench, the clamp is sleeved on the water supply pipe firstly during installation, then the two split type assembling parts of the compression nut are clamped on the periphery of the water supply pipe, then the clamp is pushed to the lower part of the split type assembling part and is tightly fixed at the bottom end of the split type assembling part, and then the compression nut after die assembly is tightly screwed at the end part of the outer sleeve through the open end wrench.

Still further, the clamping groove body of half-circular arc structure is seted up to its lower tip of split type sub-assembly, and the clamping groove body concatenation of two split type sub-assemblies forms the ring groove who is used for installing the clamp, is convenient for be connected of clamp and split type sub-assembly for can pass through clamp fixed connection after the compound die of two split type sub-assemblies.

Compared with the prior art, the utility model discloses a thin wall stainless steel feed pipe and feed pipe combination are connected to the screw thread formula, utilize gland nut to compress tightly rubber seal in the inner clamping groove for rubber seal can take place deformation expansion under gland nut's axial compression effect, and through the radial expansion of rubber seal, seal outer sleeve pipe and feed pipe, and the leakproofness is good; the outer sleeve and the water supply pipe are fixed in a threaded connection and a thrust way through a sealing element, so that the thread is prevented from being disengaged; the connection is safer and more reliable, the strength is high, the vibration is resisted, and the pipe looseness caused by house vibration, water hammer vibration, pipe resonance, slight earthquake and the like is effectively avoided.

Drawings

Fig. 1 is a schematic view of the water supply pipe assembly structure of the present invention.

Fig. 2 is a schematic view of the installation structure of the sealing member and the water supply pipe of the present invention.

Fig. 3 is a schematic view of the water supply pipe structure of the present invention.

The parts in the drawings are marked as follows: 1-a water supply pipe, 2-an outer sleeve, 3-a threaded connector, 4-a compression nut, 41-a split type assembly, 5-a rubber sealing ring, 6-a first internal thread, 7-an internal clamping groove, 8-a second internal thread and 9-a hoop.

Detailed Description

The screw-threaded connection thin-wall stainless steel water supply pipe and water supply pipe combination shown in fig. 1 to 3 comprises a water supply pipe assembly; the water supply pipe assembly comprises a water supply pipe 1 and an outer sleeve 2 which is installed on the outer side of the water supply pipe 1 in a threaded mode; the water supply pipe 1 is a reducing pipe body which is made of thin-wall stainless steel and provided with a threaded connector 3 at two ends; the outer sleeve 2 and the water supply pipe 1 are pressed and fixed through a sealing piece; the sealing element comprises a compression nut 4 and a rubber sealing ring 5; the inner side of the end part of the outer sleeve 2 is sequentially provided with a first internal thread 6, an internal clamping groove 7 and a second internal thread 8 from outside to inside along the axial direction; the compression nut 4 is in threaded connection with a first internal thread 6 of the outer sleeve 2; the rubber sealing ring 5 is clamped in the inner clamping groove 7 and is tightly pressed and fixed between the outer sleeve 2 and the water supply pipe 1 through a compression nut 4; the outer sleeve 2 is in threaded connection with the threaded connector 3 of the water supply pipe 1 through a second internal thread 8, and the outer sleeve is firstly installed on the outer side of the water supply pipe through the second internal thread during installation; then, sleeving a rubber sealing ring on the periphery of the water supply pipe, and pressing the rubber sealing ring into a gap between the water supply pipe and the outer sleeve; then, two parts of the split type compression nut are respectively clamped on the periphery of the outer sleeve and are screwed between the outer sleeve and the water supply pipe through an open end wrench, so that the two parts of the compression nut can be assembled at the end part of the outer sleeve and are connected with a first internal thread of the outer sleeve in a threaded manner; utilize gland nut to compress tightly rubber seal in interior draw-in groove for rubber seal can take place the deformation expansion under gland nut's axial compression effect, through rubber seal's radial expansion, seals outer sleeve pipe and feed pipe.

The pitch of the first internal thread 6 is greater than the pitch of the second internal thread 8.

The compression nut 4 is formed by assembling and combining two symmetrically arranged split type combined parts 41, and the compression nut is arranged into the two split type combined parts, so that the compression nut can be clamped and sleeved on the periphery of the water supply pipe, and the compression nut is convenient to install.

The lower ends of the two split type assembling parts 41 are fixedly connected through a clamp 9, the upper ends of the two split type assembling parts are tightly pressed and fixed at the end part of the outer sleeve 2 through an open end wrench, the clamp is firstly sleeved on the water supply pipe during installation, then the two split type assembling parts of the compression nut are clamped on the periphery of the water supply pipe, then the clamp is pushed to the lower part of the split type assembling parts and is tightly fixed at the bottom end of the split type assembling parts, and then the compression nut after die assembly is tightly screwed at the end part of the outer sleeve through the open.

The lower end of the split type assembly 41 is provided with a clamping groove body (not shown) with a semi-circular arc structure, and the clamping groove bodies of the two split type assemblies are spliced to form an annular clamping groove for installing a clamp, so that the clamp and the split type assemblies are convenient to connect, and the two split type assemblies can be fixedly connected through the clamp after being clamped.

The utility model discloses a threaded connection thin-wall stainless steel water supply pipe and a water supply pipe combination, when in installation, an outer sleeve is firstly installed outside the water supply pipe through a second internal thread; then, sleeving a rubber sealing ring on the periphery of the water supply pipe, and pressing the rubber sealing ring into a gap between the water supply pipe and the outer sleeve; then, the clamp is sleeved on the water supply pipe, the two split type combined parts of the split type compression nut are respectively clamped on the periphery of the outer sleeve and are screwed between the outer sleeve and the water supply pipe through an open spanner, so that the two split type combined parts of the compression nut can be assembled at the end part of the outer sleeve and are in threaded connection with a first internal thread of the outer sleeve; the rubber sealing ring is pressed in the inner clamping groove by the compression nut, so that the rubber sealing ring can deform and expand under the axial compression action of the compression nut, the outer sleeve and the water supply pipe are sealed by radial expansion of the rubber sealing ring, and the sealing performance is good; meanwhile, the outer sleeve and the water supply pipe are fixed in a threaded connection mode and in a thrust mode through a sealing piece, so that the thread is prevented from falling off; the connection is safer and more reliable, the strength is high, the vibration is resisted, and the pipe looseness caused by house vibration, water hammer vibration, pipe resonance, slight earthquake and the like is effectively avoided.

The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a thin wall stainless steel feed pipe and feed pipe combination are connected to threaded, its characterized in that: comprises a water supply pipe assembly; the water supply pipe assembly comprises a water supply pipe and an outer sleeve which is installed on the outer side of the water supply pipe in a threaded mode; the water supply pipe is a reducing pipe body which is made of thin-wall stainless steel and is provided with a threaded connector at two ends; the outer sleeve and the water supply pipe are pressed and fixed through a sealing piece; the sealing element comprises a compression nut and a rubber sealing ring; the inner side of the end part of the outer sleeve is sequentially provided with a first internal thread, an internal clamping groove and a second internal thread from outside to inside along the axial direction of the outer sleeve; the compression nut is in threaded connection with the first internal thread of the outer sleeve; the rubber sealing ring is clamped in the inner clamping groove and is tightly pressed and fixed between the outer sleeve and the water supply pipe through a compression nut; the outer sleeve is in threaded connection with the threaded connector of the water supply pipe through a second internal thread.

2. The threadingly-connected thin-walled stainless steel service pipe and service pipe combination of claim 1, wherein: the pitch of the first internal thread is larger than that of the second internal thread.

3. The threadingly-connected thin-walled stainless steel service pipe and service pipe combination of claim 1, wherein: the compression nut is formed by assembling and closing two symmetrically arranged split type combined parts.

4. The threadingly-connected thin-walled stainless steel service pipe and service pipe combination of claim 3, wherein: the lower ends of the two split type assembling pieces are fixedly connected through a clamp, and the upper ends of the two split type assembling pieces are tightly pressed and fixed at the end part of the outer sleeve through an open spanner.

5. The threadingly-connected thin-walled stainless steel service pipe and service pipe combination of claim 3 or 4, wherein: the lower end part of the split type combined part is provided with a clamping groove body of a semi-circular arc structure, and the clamping groove bodies of the two split type combined parts are spliced to form an annular clamping groove for mounting a hoop.