Reducing elbow convenient to disassemble and assemble actually

Abstract

The utility model discloses a reducing elbow convenient to actually disassemble and assemble, which relates to the field of reducing elbow devices and comprises an elbow main body, a large-diameter pipe is arranged at one end of the elbow main body, a small-diameter pipe is arranged at the other end of the elbow main body, and an outer ring is spirally arranged at one end of the elbow main body. A sealing ring is installed at the position, close to the rear portion, in the outer ring, a plurality of holes are formed in the front portion and the rear portion of the sealing ring and located on the lower portion in the outer ring, the holes penetrate through the outer ring, and a water collecting box is fixedly installed on the lower surface of the outer ring and corresponds to the holes. The clamping block, the guide groove and the limiting column are arranged, the limiting column can be automatically popped up to complete locking when installation is in place, the installation efficiency is greatly improved, when leakage occurs at the connecting position, a leakage point can be quickly found, and the maintenance time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of reducing elbow device, especially to a reducing elbow convenient to disassemble and assemble. BACKGROUND

[0002] In the installation and maintenance work of the pipeline system, as the key component for realizing the turning connection of different pipe diameters, the installation convenience and connection stability of the reducing elbow have been the focus of the industry.

[0003] In the installation process of the traditional reducing elbow, the installer often needs to perform tedious and fine calibration operations, which takes a long time, for example, the old product needs to be repeatedly adjusted in angle to enable the connection components to be precisely docked, which consumes a large amount of manpower and time cost, seriously affects the project progress, and moreover, the traditional structure has obvious deficiencies in connection stability, and due to factors such as fluid pressure fluctuation and external vibration during pipeline operation, the connection is prone to loosening, which leads to pipeline leakage and other safety hazards, which not only needs frequent maintenance to increase operation cost, but also may cause serious production accidents.

[0004] Therefore, it is necessary to provide a reducing elbow convenient to disassemble and assemble to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a reducing elbow convenient to disassemble and assemble to solve the problems of the traditional reducing elbow in the installation process, which often needs the installer to perform tedious and fine calibration operations, which takes a long time, and during pipeline operation, the connection is prone to loosening and leakage due to factors such as fluid pressure fluctuation and external vibration.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a reducing elbow convenient to disassemble and assemble, comprising an elbow main body, a large-diameter pipe is arranged at one end of the elbow main body, and a small-diameter pipe is arranged at the other end of the elbow main body.

[0007] An outer ring is spirally installed at one end of the elbow main body, a sealing ring is installed inside the outer ring close to the rear position, holes are formed in front of and behind the sealing ring and below the inner part of the outer ring, a plurality of holes are arranged, the holes penetrate the outer ring, a water collecting box is fixedly installed on the lower surface of the outer ring, and the water collecting box corresponds to the holes.

[0008] Preferably, a partition plate is fixedly installed at the middle position in the water collecting box, a first water collecting cavity is formed in front of the partition plate, the first water collecting cavity corresponds to the hole in front of the sealing ring, a second water collecting cavity is formed behind the partition plate, the second water collecting cavity corresponds to the hole behind the sealing ring, liquid sensors are installed in the first water collecting cavity and the second water collecting cavity, and observation openings are formed in the front surface and the rear surface of the water collecting box.

[0009] Preferably, the outer ring front surface is provided with an entering groove, the entering groove is provided with two, respectively located above and below the outer ring, the entering groove is provided with a guide groove, and the connecting part of the guide groove and the entering groove is provided with an arc surface.

[0010] Preferably, the large-diameter pipe rear end is spirally provided with an inner ring, the inner ring is internally provided with a thread, the large-diameter pipe is spirally connected with the inner ring through the thread, the inner ring outer surface is fixedly provided with a clamping block near both sides, the clamping block central position is provided with an ejection hole, the ejection hole is fixedly provided with a spring inside, the spring front end is fixedly provided with a limiting column, the limiting column front end is fixedly provided with a round head, and the flexible strip is fixedly arranged between the two clamping blocks and at the position of the inner ring outer surface.

[0011] Preferably, the guide groove front and the outer ring are provided with a mounting hole.

[0012] Preferably, the clamping block is clamped into the guide groove through the entering groove and slides in the guide groove, and the limiting column is located in the mounting hole.

[0013] The technical effects and advantages of the utility model are as follows:

[0014] 1. In the utility model, through the clamping block, the guide groove and the limiting column, the clamping block can be quickly aligned with the entering groove and slide along the guide groove during installation, without complex calibration and fine operation, so that the initial installation time is greatly saved, when the round head on the limiting column contacts the arc surface at the connecting part of the guide groove and the entering groove, the limiting column automatically retracts, and when installed in place, it automatically pops out and locks into the mounting hole, greatly improving the installation efficiency, realizing the effect of quick installation, and under the limitation of the limiting column, the connecting part will not loosen, the overall structural stability is increased, and the problems of long time consumption, low installation efficiency during the installation process of the traditional reducing elbow and looseness of the connecting part due to factors such as pressure fluctuation and external vibration during pipeline operation are solved.

[0015] 2. In the utility model, through the water collecting box, the flexible strip and the sealing ring, through the synergistic effect of the flexible strip and the sealing ring, after installation is completed, the flexible strip automatically resets, the structure of the front narrow and the rear wide makes the rear wide part closely fit the sealing ring, can tightly fill the possible small gap between the inner ring and the outer ring, increase the sealing effect, at the same time, when the connecting part leaks, the liquid sensor in the water collecting box will report in the first time, and can distinguish different leakage points, so that the maintenance personnel can quickly find the leakage point and carry out maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic view of the utility model of a kind of reducing elbow convenient to actual disassembly and assembly;

[0017] Figure 2 This is a split view of a reducing elbow that is easy to disassemble and assemble in practice according to this utility model.

[0018] Figure 3 This is a schematic diagram of the inner ring of a reducing elbow that is easy to disassemble and assemble in practice, according to this utility model.

[0019] Figure 4 This is a schematic diagram of the outer ring of a reducing elbow that is easy to disassemble and assemble in practice according to this utility model.

[0020] In the diagram: 1. Elbow body; 2. Large diameter pipe; 3. Small diameter pipe; 4. Outer ring; 5. Inner ring; 6. Flexible strip; 7. Locking block; 8. Ejection hole; 9. Thread; 10. Limiting post; 11. Round head; 12. Spring; 13. Entry groove; 14. Guide groove; 15. Arc-shaped surface; 16. Mounting hole; 17. Sealing ring; 18. Hole; 19. Water collection box; 20. Divider plate; 21. First water collection chamber; 22. Second water collection chamber; 23. Observation port. Detailed Implementation

[0021] This utility model provides a reducing elbow that is easy to disassemble and assemble in practice. Please refer to the appendix. Figure 1 - Appendix Figure 2 As shown, it includes an elbow body 1, with a large-diameter pipe 2 installed at one end of the elbow body 1 and a small-diameter pipe 3 installed at the other end of the elbow body 1.

[0022] Please see the appendix Figure 3 As shown, the inner ring 5 has a thread 9 inside, and the large diameter pipe 2 is spirally connected to the inner ring 5 through the thread 9. The outer surface of the inner ring 5 is fixedly installed with a locking block 7 near both sides, and the locking block 7 is locked into the guide groove 14 from the inlet groove 13.

[0023] Specifically, a push-out hole 8 is provided at the center of the locking block 7. A spring 12 is fixedly installed inside the push-out hole 8. A limit post 10 is fixedly installed at the front end of the spring 12. A round head 11 is fixedly installed on the front surface of the limit post 10. This design allows the round head 11 to contact the arc surface 15 when the large-diameter pipe 2 rotates, causing the limit post 10 to retract into the locking block 7.

[0024] Furthermore, a flexible strip 6 is fixedly installed between the two locking blocks 7 and on the outer surface of the inner ring 5. The flexible strip 6 is made of silicone and has a circular design that is narrower at the front and wider at the back. Before installation, the wider side of the flexible strip 6 needs to be bent inward. When it is bent to a diameter slightly smaller than that of the outer ring 4, the locking block 7 on the inner ring 5 is engaged in the inlet groove 13. After installation, the flexible strip 6 will automatically reset. After automatic reset, it can fit tightly against the sealing ring 17. The design of being narrower at the front and wider at the back makes the contact area between the wider part and the sealing ring 17 larger, which can more effectively prevent fluid from leaking from the connection between the inner ring 5 and the outer ring 4, further improving the sealing performance of the pipeline system.

[0025] Please refer to the attached Figure 4 As shown in the drawings, the outer surface of the elbow body 1 is spirally provided with an outer ring 4, and the surface close to the large-diameter pipe 2 is provided with an entering groove 13. The entering groove 13 is provided with two entering grooves, which are located above and below the outer ring 4 respectively.

[0026] Further, the entering groove 13 is provided with a guide groove 14, and the connecting part of the guide groove 14 and the entering groove 13 is provided with an arc surface 15. The combination of the arc surface 15 and the guide groove 14 can also play a guiding role when disassembling. When the inner ring 5 and the outer ring 4 need to be disassembled, the operator can move the clamping block 7 in the opposite direction along the direction of the guide groove 14. The arc surface 15 can assist the clamping block 7 to smoothly retreat from the guide groove 14 to the entering groove 13, so as to conveniently and quickly complete the disassembly operation.

[0027] Specifically, the front of the guide groove 14 and the outer ring 4 are provided with a mounting hole 16. When disassembling, since the limiting column 10 is pushed out by the spring 12, the operator can press the limiting column 10 into the mounting hole 16 by means of a columnar tool such as a center punch, overcome the elastic force of the spring 12, and make the limiting column 10 retreat from the mounting hole 16, so as to conveniently release the locking state of the inner ring 5 and the outer ring 4, further simplify the disassembly process, and improve the convenience of operation.

[0028] Specifically, the clamping block 7 is clamped into the guide groove 14 through the entering groove 13 and slides in the guide groove 14. The limiting column 10 is located in the mounting hole 16. The position of the mounting hole 16 is designed in front of the guide groove 14, so that the operator can intuitively see whether the clamping block 7 moves to the correct locking position during the installation process. If the limiting column 10 pops out and clamps into the mounting hole 16, it means that the installation is correct. Otherwise, it can be adjusted in time, which improves the accuracy and operability of the installation.

[0029] Specifically, the rear of the guide groove 14 and the inner position of the outer ring 4 are provided with a sealing ring 17. The sealing ring 17 can effectively prevent fluid from leaking from the connecting part of the inner ring 5 and the outer ring 4, improve the sealing performance of the pipeline system, and ensure the safety and stability of the pipeline fluid conveying.

[0030] Further, the front and rear of the sealing ring 17 and the lower position inside the outer ring 4 are provided with a hole 18. The lower surface of the outer ring 4 is fixedly provided with a water collecting box 19. The hole 18 is used to guide the leaked liquid caused by factors such as fluid pressure fluctuation and external vibration, and collect them into the water collecting box 19.

[0031] Specifically, the water collecting box 19 corresponds to the hole 18. The water collecting box 19 is fixedly provided with a partition plate 20 at the middle position. The front of the partition plate 20 forms a first water collecting cavity 21, and the rear of the partition plate 20 forms a second water collecting cavity 22.

[0032] Specifically, the first water collecting cavity 21 corresponds to the hole 18 in front of the sealing ring 17, and the second water collecting cavity 22 corresponds to the hole 18 behind the sealing ring 17. Liquid sensors are installed in the first water collecting cavity 21 and the second water collecting cavity 22. When a leak occurs at the connection, the liquid sensor in the water collecting box 19 will report it first. The maintenance personnel can quickly find the leak and repair it by distinguishing the leak point according to the sensors in different cavities. For example, when the liquid sensor in the second water collecting cavity 22 alarms, it means that the connection between the outer ring 4 and the elbow body 1 has leaked. It is not necessary to disassemble and check each one to quickly determine the leaking component.

[0033] Specifically, the front surface and the rear surface of the water collecting box 19 are both provided with an observation port 23, which is designed of transparent glass for manual inspection by the patrolling staff.

[0034] In use, first, bend the wider side of the flexible strip 6 inward so that its size is slightly smaller than the diameter of the outer ring 4, then align the clamping block 7 on the inner ring 5 with the entering slot 13 provided on the outer ring 4 and clamp it in, at this time, the clamping block 7 is located in the entering slot 13, and the inner ring 5 is preliminarily connected with the outer ring 4. Then, rotate the large-diameter pipe 2 provided with the inner ring 5 clockwise, and the clamping block 7 slides along the guide slot 14. When the round head 11 on the limiting column 10 contacts the arc surface 15 at the connection between the guide slot 14 and the entering slot 13, due to the special design of the arc surface 15, the limiting column 10 will overcome the elastic force of the spring 12 under the pressure and retract into the ejection hole 8 of the clamping block 7. Continue to rotate the large-diameter pipe 2 clockwise, and when the large-diameter pipe 2 is installed in place, the limiting column 10 is ejected from the ejection hole 8 under the action of the spring 12 and clamped into the mounting hole 16 provided in front of the outer ring 4. At this time, the operator can directly see that the limiting column 10 is ejected and clamped into the mounting hole 16 to determine that the large-diameter pipe 2 has been installed with the elbow body 1. At the same time, after installation is completed, the flexible strip 6 automatically resets, and its front narrow and rear wide structure makes the rear wide part tightly fit the sealing ring 17, further enhancing the sealing performance of the connection between the inner ring 5 and the outer ring 4.

[0035] When it needs to be disassembled, the operator first uses a cylindrical tool such as a center pin to press the limiting column 10 inward against the installation hole 16. The limiting column 10 is subjected to external force, overcoming the elastic force of the spring 12, and exits from the installation hole 16, thereby releasing the locking state of the inner ring 5 and the outer ring 4. Then, the clamping block 7 is moved in the opposite direction along the guide groove 14. In the moving process, the arc surface 15 assists the clamping block 7 to smoothly retreat from the guide groove 14 into the slot 13. Since there are two entering slots 13 and the positions are reasonably distributed, the operator can conveniently take out the clamping block 7 from the entering slot 13, thereby completing the separation of the inner ring 5 and the outer ring 4. After that, the large-diameter pipe 2 and the inner ring 5 can be further disassembled, that is, by rotating the large-diameter pipe 2 to separate it from the inner ring 5 through the thread 9.

Claims

1. A reducing elbow which is easy to actually disassemble, comprising an elbow body (1), characterized in that: One end of the elbow body (1) is provided with a large-diameter pipe (2), and the other end of the elbow body (1) is provided with a small-diameter pipe (3); The outer ring (4) is spirally installed at one end of the elbow body (1), a sealing ring (17) is installed inside the outer ring (4) and close to the rear position, a plurality of holes (18) are formed in the front and rear of the sealing ring (17) and below the inner part of the outer ring (4), the holes (18) penetrate the outer ring (4), and a water collecting box (19) is fixedly installed on the lower surface of the outer ring (4) and corresponds to the holes (18).

2. A reducing elbow according to claim 1, wherein: A partition plate (20) is fixedly installed at the middle position in the water collecting box (19), a first water collecting cavity (21) is formed in front of the partition plate (20), the first water collecting cavity (21) corresponds to the holes (18) in front of the sealing ring (17), a second water collecting cavity (22) is formed behind the partition plate (20), the second water collecting cavity (22) corresponds to the holes (18) behind the sealing ring (17), liquid sensors are installed in the first water collecting cavity (21) and the second water collecting cavity (22), and observation openings (23) are formed in the front surface and the rear surface of the water collecting box (19).

3. The reducing elbow of claim 1, wherein: An entering groove (13) is formed in the front surface of the outer ring (4), the entering groove (13) is formed with two, which are located directly above and below the outer ring (4), a guide groove (14) is formed on the entering groove (13), and an arc surface (15) is arranged at the connection between the guide groove (14) and the entering groove (13).

4. The reducing elbow of claim 1, wherein: An inner ring (5) is spirally installed at the rear end of the large-diameter pipe (2), a thread (9) is formed in the inner ring (5), the large-diameter pipe (2) is spirally connected with the inner ring (5) through the thread (9), clamping blocks (7) are fixedly installed on the outer surface of the inner ring (5) and close to both sides, an ejection hole (8) is formed in the center of each clamping block (7), a spring (12) is fixedly installed in the ejection hole (8), a limiting column (10) is fixedly installed at the front end of the spring (12), a round head (11) is fixedly installed at the front end of the limiting column (10), and a flexible strip (6) is fixedly installed between the two clamping blocks (7) and on the outer surface of the inner ring (5).

5. A reducing elbow according to claim 3, wherein: An installation hole (16) is formed in front of the guide groove (14) and on the outer ring (4).

6. A reducing elbow according to claim 4, wherein: The clamping block (7) is clamped into the guide groove (14) through the entering groove (13) and slides in the guide groove (14), and the limiting column (10) is located in the installation hole (16).

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