CN218719610U

CN218719610U - Novel water pipe elbow

Info

Publication number: CN218719610U
Application number: CN202222917048.1U
Authority: CN
Inventors: 杨利忠
Original assignee: Fengguo China Co ltd
Current assignee: Fengguo China Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-24
Anticipated expiration: 2032-10-31

Abstract

The utility model relates to a water pipe elbow technical field provides a novel water pipe elbow, solves the defect that prior art is not suitable for internal thread pipe fitting to connect. The utility model discloses a straight tube one, straight tube two and return bend, return bend both ends are connected with straight tube one, straight tube two respectively, still include embedded part and screwed pipe, embedded part inlays in straight tube one with the free end of straight tube two, screwed pipe threaded connection is in the embedded part inner wall, the screwed pipe includes screw thread section one, operation section and screw thread section two, screw thread section one and embedded part threaded connection, screw thread section one is connected the operation section, operation section connection screw thread section two, through setting up embedded part connection screwed pipe that straight tube one and straight tube two free ends, adjust the screwed pipe at straight tube one and straight tube two's the depth of connection, locking elbow and target pipe fitting have solved hot melt connection's defect, compare with the female loose joint of screw thread, the external diameter of elbow is littleer under the same internal diameter, has more the advantage in narrow operation space.

Description

Novel water pipe elbow

Technical Field

The utility model relates to a water pipe elbow technical field, concretely relates to novel water pipe elbow.

Background

The elbow is the subassembly that changes the pipeline direction among the pipe-line system, and the elbow is connected with the mode of adopting the screw thread usually with the pipe fitting and is connected, and the elbow both ends set up inside and outside screw head and pipe fitting and be connected, and the connected mode of inside and outside screw head has certain requirement to the operating space of ann tearing open, when the space is limited, can choose for use the elbow that has the screw nut, nevertheless because the elbow of screw nut can not with interior screw pipe fitting lug connection, if adopt the adapter very troublesome and extravagant material.

Chinese patent publication No. CN217559327U discloses a loose joint elbow, including crooked body, the one end of body has the outside expansion of lateral part and is cylindric joint portion, the inner wall of joint portion and the hookup location of the department that does not expand form annular convex shoulder, joint portion inboard is close to the port department and is provided with and is annular sealing washer, the other end of body has the throat portion of lateral part internal contraction, the outside cover of throat portion is equipped with and is the annular nut, just the nut can for body circumferential direction, the tip of throat portion has and turns over outwards to turn over and be an annular fender edge, the nut is close to the one end inboard of body has the protrusion and is annular protruding edge, when the nut is removed to the direction of keeping away from the body protruding edge with keeping off along can counterbalance.

Technical scheme is connected with the pipe fitting through the joint portion that the elbow both ends set up with the nut, the mode that the hot melt was pegged graft is adopted to the one end of being connected of changing elbow and pipe fitting, the other end adopts the mode of female loose joint of screw thread, nevertheless in the installation, because the influence of job site environment, the hot melt connection can't be accomplished in a lot of key positions and narrow and small space, for example the trunk line of giving water generally in basement eminence or constrictive tube shaft, the construction degree of difficulty has been increased, the pipe fitting that the welding was crossed can cause the pipeline undergauge to reduce the ability of leading to water, block up the construction accident hidden danger of pipeline even, and the loose joint mode of female screw thread can't directly be applicable to the connection of internal thread pipe fitting.

SUMMERY OF THE UTILITY MODEL

Therefore, to the above-mentioned problem, the utility model provides a novel water pipe elbow solves the water pipe elbow of prior art and is not suitable for the defect of internal thread pipe fitting connection.

In order to achieve the purpose, the utility model is realized by the following technical proposal:

a novel water pipe elbow comprises a first straight pipe, a second straight pipe and a bent pipe, wherein the first straight pipe, the second straight pipe and the bent pipe are hollow pipe bodies, two ends of the bent pipe are respectively connected with the first straight pipe and the second straight pipe, the novel water pipe elbow further comprises an embedded part and a threaded pipe, the embedded part is embedded in free ends of the first straight pipe and the second straight pipe, the threaded pipe is in threaded connection with the inner wall of the embedded part, the outer walls of the first straight pipe and the second straight pipe are tangent to the outer wall of the bent pipe, the threaded pipe comprises a first threaded section, an operating section and a second threaded section, the first threaded section is in threaded connection with the embedded part, the first threaded section is connected with the operating section, and the operating section is connected with the second threaded section;

the further improvement is that the internal diameters of the first threaded section, the operating section and the second threaded section are the same;

the further improvement is that a bearing ring is arranged at the free end of the first threaded section, and the bearing ring and the first threaded section are integrally connected;

the further improvement is that the sealing ring is also included, and the sealing ring is fixed between the bearing ring and the inner embedded piece;

the further improvement is that the length of the first straight pipe and the second straight pipe is greater than the sum of the length of the first threaded section and the length of the operating section;

the cross section of the operation section is a regular polygon, and the cross sections of the first thread section and the second thread section are circular;

the further improvement is that the thread pitch of the first thread section and the outer wall of the thread section is the same, the thread directions are opposite, and the length of the thread area is equal;

the further improvement is that the outer wall of the inner insert is provided with an anti-falling convex ring, and the radius of the convex ring is gradually reduced along with the embedded depth;

the further improvement is that the outer wall of the embedded area of the inner insert of the first straight pipe and the second straight pipe is provided with a thickening ring;

in a further improvement, the elbow is an arc-shaped pipeline.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up embedded in straight tube one and the interior inserts connection threaded pipe of two free ends of straight tube, can make the threaded pipe pass through and the interior screw thread between the inserts, adjust the threaded pipe at the straight tube one with the depth of connection of straight tube two, when reaching locking threaded pipe and interior inserts, the locking threaded pipe is connected with the target pipe fitting, through setting up the operation section, make operating personnel can operate the threaded pipe through the instrument when ann tears open, be connected between elasticity elbow and the pipeline, the setting up of interior inserts and threaded pipe is passed through at the both ends of elbow makes the elbow both ends be the loose joint, and can use in the pipe network that the bi-polar all is the internal thread pipe fitting, the defect of hot melt connection has been solved, compare with female loose joint of screw thread, the external diameter of elbow is littleer under the same internal diameter, have more the advantage in narrow operation space.

Drawings

Fig. 1 is a schematic sectional structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an insert and a threaded pipe according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a threaded pipe according to an embodiment of the present invention;

fig. 4 is a schematic view of a sectional structure of an insert according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of an operation section according to an embodiment of the present invention.

Detailed Description

The following detailed description will be given with reference to specific embodiments, so as to solve the technical problems by applying technical means and to fully understand and implement the technical effects of the present invention.

Examples

As shown in fig. 1 to 5, a novel water pipe elbow comprises a first straight pipe 1, a second straight pipe 2 and a bent pipe 3, wherein the first straight pipe 1, the second straight pipe 2 and the bent pipe 3 are hollow pipe bodies, the bent pipe 3 is an arc-shaped pipeline, two ends of the bent pipe 3 are respectively connected with the first straight pipe 1 and the second straight pipe 2, the novel water pipe elbow further comprises an embedded part 4 and a threaded pipe 5, the embedded part 4 is embedded in free ends of the first straight pipe 1 and the second straight pipe 2, a thickening ring 12 is arranged on the outer wall of an embedded area of the embedded part 4 of the first straight pipe 1 and the second straight pipe 2, the threaded pipe 5 is in threaded connection with the inner wall of the embedded part 4, the outer walls of the first straight pipe 1 and the second straight pipe 2 are tangent to the outer wall of the bent pipe 3, the threaded pipe 5 comprises a first threaded section 6, an operating section 7 and a second threaded section 8, the first threaded section 6 is in threaded connection with the embedded part 4, the first threaded section 6 is connected with the operating section 7, and the second threaded section 8;

the cross section of the operating section 7 is a regular hexagon, the cross sections of the first thread section 6 and the second thread section 8 are circular, the radius of an external circle of the regular hexagon is slightly smaller than the radius of the first thread section 6 and the radius of the second thread section 8, so that the operating section 7 can freely enter and exit the inner insert 4, the inner diameters of the first thread section 6, the operating section 7 and the second thread section 8 are the same, the thread space between the outer walls of the first thread section 6 and the second thread section 8 is the same, the thread directions are opposite, and the length of thread areas is the same;

the threaded pipe 5 is connected with the inner insert 4 embedded in the free ends of the first straight pipe 1 and the second straight pipe 2, the threaded pipe 5 can pass through a thread between the inner insert 4, the connection depth of the threaded pipe 5 between the first straight pipe 1 and the second straight pipe 2 is adjusted, the threaded pipe 5 and the inner insert 4 are locked while the threaded pipe 5 and the inner insert 4 are locked, an operation section 7 is arranged, an operator can operate the threaded pipe 5 through a tool during installation and disassembly, the connection between an elbow and a pipeline is tightened, the two ends of the elbow enable the two ends of the elbow to be in loose joint through the arrangement of the inner insert 4 and the threaded pipe 5, the elbow can be used in a pipe network with two ends both being inner wire pipe fittings, the defect of hot melt connection is overcome, compared with the loose joint of a nut, the outer diameter of the elbow under the same inner diameter is smaller, and the elbow has more advantages in a narrow operation space;

the free end of the first threaded section 6 is provided with a bearing ring 10, and the bearing ring 10 is integrally connected with the first threaded section 6; the sealing ring 9 is fixed between the bearing ring 10 and the inner insert 4;

by arranging the bearing ring 10 and the sealing ring 9, when the threaded pipe 5 is screwed, the bearing ring 10, the sealing ring 9 and the inner insert 4 can be compacted, the sealing performance of the elbow is ensured, the threaded pipe 5 cannot be separated from the inner insert 4 due to the arrangement of the bearing ring, and the effect of limiting the displacement of the threaded pipe 5 is achieved;

the lengths of the first straight pipe 1 and the second straight pipe 2 are greater than the sum of the lengths of the first thread section 6 and the operating section 7;

in the use process of the elbow, the longer pipe lengths of the first straight pipe 1 and the second straight pipe 2 are set, so that when the elbow is disassembled, the threaded pipe 5 is propped against the bent pipe 3 due to the too short lengths of the first straight pipe 1 and the second straight pipe 2, and the elbow cannot be completely disassembled;

the outer wall of the inner insert 4 is provided with an anti-falling convex ring 11, and the radius of the convex ring 11 is gradually reduced along with the embedded depth.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a novel water pipe elbow, includes straight tube one, straight tube two and return bend, straight tube one, straight tube two are hollow body with the return bend, and the return bend both ends are connected its characterized in that with straight tube one, straight tube two respectively: the improved straight pipe structure is characterized by further comprising an inner insert and a threaded pipe, the inner insert is embedded in the free end of the first straight pipe and the free end of the second straight pipe, the threaded pipe is in threaded connection with the inner wall of the inner insert, the outer wall of the first straight pipe and the outer wall of the second straight pipe are tangent to the outer wall of the bent pipe, the threaded pipe comprises a first threaded section, an operating section and a second threaded section, the first threaded section is in threaded connection with the inner insert, the first threaded section is connected with the operating section, the operating section is connected with the second threaded section, the free end of the first threaded section is provided with a bearing ring, the bearing ring is integrally connected with the first threaded section, and the improved straight pipe structure further comprises a sealing ring, and the sealing ring is fixed between the bearing ring and the inner insert.

2. The novel water pipe elbow as claimed in claim 1, wherein: the internal diameters of the first threaded section, the operating section and the second threaded section are the same.

3. The novel water pipe elbow as claimed in claim 1, wherein the lengths of the first straight pipe and the second straight pipe are greater than the sum of the lengths of the first threaded section and the operating section.

4. The novel water pipe elbow according to claim 1, wherein: the cross section of the operation section is a regular polygon, and the cross sections of the first thread section and the second thread section are circular.

5. The novel water pipe elbow as claimed in claim 1, wherein: the thread specification of the first thread section is the same as that of the outer wall of the first thread section, and the length of the thread area is equal.

6. The novel water pipe elbow according to claim 1, wherein: the outer wall of the inner insert is provided with an anti-falling convex ring, and the radius of the convex ring is gradually reduced along with the embedded depth.

7. The novel water pipe elbow as claimed in claim 1, wherein: and the outer wall of the embedded region of the inner insert of the first straight pipe and the second straight pipe is provided with a thickening ring.

8. The novel water pipe elbow as claimed in claim 1, wherein: the elbow is an arc-shaped pipeline.