CN210106816U

CN210106816U - Reducing water pipe joint

Info

Publication number: CN210106816U
Application number: CN201920703611.0U
Authority: CN
Inventors: 周志龙; 杨奇峰
Original assignee: NINGBO MINGYANG STAINLESS STEEL PIPE Co Ltd
Current assignee: NINGBO MINGYANG STAINLESS STEEL PIPE Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-02-21
Anticipated expiration: 2029-05-16

Abstract

A reducing water pipe joint comprises a first pipe fitting, a second pipe fitting and a switching elbow for connecting the first pipe fitting and the second pipe fitting, wherein the pipe diameter of the first pipe fitting is larger than that of the second pipe fitting, and the switching elbow is of a bent tubular structure; one end of the switching elbow close to the first pipe fitting is provided with a conical part, and the conical part is of a conical thin-wall structure; the mesh-shaped filter screen is fixedly installed in the transfer elbow, the first pipe fitting and the second pipe fitting are respectively provided with a convex ring, each convex ring comprises a first convex ring and a second convex ring which are arranged on the first pipe fitting at intervals, and a third convex ring and a fourth convex ring which are arranged on the second pipe fitting at intervals, a concave part matched with the seal ring is circumferentially arranged in each convex ring, and the seal rings are respectively clamped in the concave parts; the multi-clamping-pressing type pipe fittings are adopted for connection, so that the connection is firmer, the sealing and fastening of the pipeline and the reducing water pipe joint are realized by utilizing the local deformation of the joint, and the sealing performance is excellent.

Description

Reducing water pipe joint

Technical Field

The utility model relates to a pipe joint field especially relates to a reducing water pipe head.

Background

The reducing water pipe joint is a pipe fitting used at the reducing part of a pipeline, the pipe fittings at two ends of the reducing water pipe joint on the market are mostly connected by threads, the thread connection generally has the defect of low pressure bearing, the thread part is easy to wear, rot and leak, and the service life is short; the sealing property is difficult to guarantee for a long time under the use environment with high water pressure; in addition, the end part of one side of the common reducing water pipe joint is only provided with a gasket or a sealing ring, and the excellent sealing effect cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a reducing water pipe head for it is limited to solve ordinary reducing water pipe head sealing performance, the shorter problem of life.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a reducing water pipe joint comprises a first pipe fitting, a second pipe fitting and a switching elbow for connecting the first pipe fitting and the second pipe fitting, wherein the pipe diameter of the first pipe fitting is larger than that of the second pipe fitting, and the switching elbow is of a bent tubular structure; one end of the switching elbow close to the first pipe fitting is provided with a conical part, and the conical part is of a conical thin-wall structure; fixed mounting has netted filter screen in the switching elbow, first pipe fitting with be provided with the bulge loop on the second pipe fitting respectively, the bulge loop sets up including the interval first bulge loop, second bulge loop on the first pipe fitting to and the interval sets up third bulge loop, the fourth bulge loop of second pipe fitting, every the inside equal circumference of bulge loop is provided with the concave part that holds the sealing washer.

Further, the first pipe fitting, the second pipe fitting and the transfer elbow are integrally formed.

Furthermore, the switching return bend wraps the rubber sleeve who is rather than the adaptation outward.

Further, the first pipe fitting, the second pipe fitting and the switching elbow are all made of stainless steel.

Further, the sealing washer is O type circle, the sealing washer is the rubber material.

Compared with the prior art, the reducing water pipe joint of the utility model adopts the multi-clamping type pipe fitting connection, so that the connection is firmer, and the leakage possibly generated at the joint is greatly reduced; the O-shaped sealing ring is more tightly attached to the surface of the pipeline by utilizing the local deformation of the reducing water pipe joint, so that the pipeline and the reducing water pipe joint are sealed and fastened, the sealing performance is excellent, and the practicability is good; meanwhile, smooth transition of different pipe diameters can be well realized by the arrangement of the conical part on the switching elbow; additionally, the utility model discloses reducing water pipe head is stainless steel integrated into one piece, does not have the welding seam, and the cost of manufacture is low, and the yield is high.

Drawings

Fig. 1 is a front view of the fire sprinkler of the present invention.

Fig. 2 is a right side view of the fire sprinkler of the present invention.

Fig. 3 is a sectional view of the plane a-a of the fire sprinkler head of the present invention.

Fig. 4 is a schematic perspective view of the fire sprinkler of the present invention.

Description of reference numerals:

1-a first tubular member; 11-a first convex ring; 12-a second convex ring;

2-a second tubular member; 21-a third bulge loop; 22-a fourth bulge loop;

3-switching the bent pipe; 31-a conical section;

4, filtering the filter screen; 5-sealing ring;

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, the reducing water pipe joint of the present invention includes a first pipe member 1, a second pipe member 2 and a switching elbow 3 connecting the first pipe member and the second pipe member, the above structure is integrally formed, the pipe diameter of the first pipe member 1 is larger than that of the second pipe member 2, the switching elbow 3 is a curved tubular structure for converting the extending direction of the pipe members; a reticular filter screen 4 is fixedly arranged in the switching elbow, the filter screen 4 can effectively filter particle impurities in water, the generation of scale in the joint of the reducing water pipe is reduced, the service life of the joint is prolonged, and the water quality of the water flow output end is cleaner; because the pipe diameter of the first pipe fitting 1 is large, one end of the switching elbow 3 close to the first pipe fitting 1 is provided with a conical part 31, and the conical part 31 is of a conical thin-wall structure and is used for smooth transition among different pipe diameter structures; the first pipe fitting 1 and the second pipe fitting 2 are respectively provided with a convex ring, the convex rings comprise a first convex ring 11 and a second convex ring 12 which are arranged on the first pipe fitting 1 at intervals, and a third convex ring 21 and a fourth convex ring 22 which are arranged on the second pipe fitting 2 at intervals, a concave part matched with the sealing ring 5 is circumferentially arranged in each convex ring, the sealing rings 5 are respectively clamped in the concave parts, the sealing rings 5 are O-shaped circles, and the sealing rings 5 can effectively prevent water flow from leaking out of a gap between the joint and the outer wall of the pipeline; the first pipe fitting 1, the second pipe fitting 2 and the switching elbow 3 are all made of stainless steel, and the sealing ring 5 is made of rubber; more than two convex rings can be arranged on each pipe fitting for enhancing the sealing effect; in addition, the switching elbow 3 may be wrapped with a rubber sleeve (not shown) adapted thereto to reduce the friction between the switching elbow and the outside.

When the reducing water pipe joint and the water pipes at two ends are connected, tools such as a clamp, a clamping press and the like are needed to complete multi-clamping connection; at first with two water pipes that the pipe diameter is different insert respectively the joint, insert respectively after target in place and carry out the card through the card pressure instrument to reducing water pipe joint's relevant position and press, through many times card pressure operation back, each bulge loop receives tensile stress and produces the deformation, with the water pipe area of contact increase, sealing washer 5 and water pipe clearance reduce, and the leakproofness reinforcing has avoided producing the seepage phenomenon between joint and water pipe.

The utility model discloses the use scene of reducing water pipe head is for connecting two water pipes, also can be used to pipeline engineering such as gas transmission; the joint of the pipeline is the most easily-leaked part, and the reducing water pipe joint of the utility model adopts the connection of multiple clamping-pressing type pipe fittings, so that the connection is firmer, more high-temperature resistant, firm and durable; in addition, the local deformation of the reducing water pipe joint is utilized to enable the pipe fitting and the O-shaped sealing ring to be tightly attached to the surface of the pipeline, so that the pipeline and the reducing water pipe joint are sealed and fastened, and the sealing performance is excellent.

Finally, it should be noted that: the above embodiments are merely illustrative of the technical solutions of the present invention, and not limitative thereof; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a reducing water pipe head which characterized in that: the reducing water pipe joint comprises a first pipe fitting (1), a second pipe fitting (2) and a switching elbow (3) for connecting the first pipe fitting and the second pipe fitting, wherein the pipe diameter of the first pipe fitting (1) is larger than that of the second pipe fitting (2), and the switching elbow (3) is of a bent tubular structure; one end of the switching elbow (3) close to the first pipe fitting (1) is provided with a conical part (31), and the conical part (31) is of a conical thin-wall structure; a reticular filter screen (4) is fixedly arranged in the switching bent pipe (3); the sealing ring is characterized in that convex rings are respectively arranged on the first pipe fitting (1) and the second pipe fitting (2), the convex rings comprise a first convex ring (11) and a second convex ring (12) which are arranged on the first pipe fitting (1) at intervals, a third convex ring (21) and a fourth convex ring (22) which are arranged on the second pipe fitting (2) at intervals, and a concave part for accommodating a sealing ring (5) is circumferentially arranged in each convex ring.

2. The reducing water pipe joint according to claim 1, characterized in that the first pipe (1), the second pipe (2) and the transfer elbow (3) are integrally formed.

3. The reducing water pipe joint according to claim 1, wherein the adapter elbow (3) is wrapped with a rubber sleeve adapted to the adapter elbow.

4. The reducing water pipe joint according to claim 1, wherein the first pipe (1), the second pipe (2) and the adapter elbow (3) are all made of stainless steel.

5. The reducing water pipe joint according to claim 1, wherein the sealing ring (5) is an O-shaped circle, and the sealing ring (5) is made of rubber.