Easily-connected high-chromium alloy wear-resistant reducing pipe fitting

Abstract

The utility model relates to the field of reducing pipes, and discloses an easy-to-connect high-chromium alloy wear-resistant reducing pipe fitting which comprises a first connecting pipe, a second connecting pipe and a protection mechanism, first connecting flanges are fixedly arranged on the opposite sides of the first connecting pipe and the second connecting pipe, and the protection mechanism comprises a first connecting ring. A second connecting ring is hinged to one side of the first connecting ring, a first connecting block and a second connecting block are fixedly arranged at the opposite ends of the other side of the first connecting ring and the other side of the second connecting ring correspondingly, a connecting plate is fixedly arranged at the upper end of the first connecting block, and a fixing plate is fixedly arranged at the lower end of the second connecting block; a fixed frame is fixedly arranged at the rear end of the fixed plate, springs are arranged on the two sides of the inner end of the fixed frame, and a movable plate is fixedly arranged at the front ends of the two springs. The two connecting rings can effectively protect the first connecting flange, external impact and abrasion are prevented, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of reducers, and in particular to a high-chromium alloy wear-resistant reducer fitting that is easy to connect. Background Technology

[0002] A reducing pipe fitting is a type of pipe fitting used to connect two pipe sections with different diameters. It is typically used in piping systems to facilitate fluid transfer and transition between different pipe diameters. In piping systems, it may be necessary to change the pipe diameter according to process requirements or flow demands. Reducing pipe fittings can effectively achieve this diameter transition, ensuring smooth fluid flow.

[0003] In the process of developing this application, the inventors discovered the following problems with the existing technology: Conventional reducing pipe fittings are generally connected by flanges. Over time, the flange surface may be subject to corrosion, deposit accumulation, or wear, leading to leaks or fluid loss. Furthermore, during system operation, the flange connection may be affected by vibration, causing the joint to loosen or generate noise, thereby affecting the system's stability and operating environment.

[0004] Therefore, those skilled in the art have provided an easy-to-connect high-chromium alloy wear-resistant reducer fitting to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an easy-to-connect high-chromium alloy wear-resistant reducing pipe fitting. The protective mechanism of this invention can prevent external impacts and wear.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-chromium alloy wear-resistant reducing pipe fitting that is easy to connect includes a first connecting pipe, a second connecting pipe, and a protective mechanism. A first connecting flange is fixedly installed on the opposite side of the first connecting pipe and the second connecting pipe. A sealing layer is fixedly installed on the inner end of the opposite side of the first connecting pipe and the second connecting pipe. A second connecting flange is fixedly sleeved on the outer end of the opposite side of the first connecting pipe and the second connecting pipe. An expansion flange is movably sleeved on the outer side of the opposite side of the first connecting pipe and the second connecting pipe near the second connecting flange.

[0008] The protective mechanism includes a first connecting ring, a second connecting ring hinged to one side of the first connecting ring, a first connecting block and a second connecting block fixedly installed at opposite ends of the other sides of the first and second connecting rings, a connecting plate fixedly installed at the upper end of the first connecting block, multiple through slots opened at the front end of the connecting plate, a fixing plate fixedly installed at the lower end of the second connecting block, a fixing frame fixedly installed at the rear end of the fixing plate, springs installed on both sides of the inner end of the fixing frame, movable plates fixedly installed at the front ends of the two springs, and a snap-fit ​​rod fixedly installed at the front end of the movable plate.

[0009] Furthermore, the two No. 1 connecting flanges are fixedly connected by bolts, and the two sealing layers are located at the lower ends of the two No. 1 connecting flanges.

[0010] Furthermore, the two No. 2 connecting flanges are respectively placed in the grooves at the front ends of the two expansion flanges, and both the No. 1 connecting pipe and the No. 2 connecting pipe are made of high chromium alloy material.

[0011] Furthermore, the first connecting ring contacts the lower ends of the two first connecting flanges, and the second connecting ring contacts the upper ends of the two first connecting flanges.

[0012] Furthermore, the connecting plate extends through the first connecting block and the second connecting block, and the plurality of the through slots are located at the lower end of the second connecting block.

[0013] Furthermore, the movable plate is movably disposed at the lower end of the second connecting block.

[0014] Furthermore, the movable plate is movably disposed inside the fixed frame, and the snap-fit ​​rod passes through the fixed plate and the through slot.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model proposes an easy-to-connect high-chromium alloy wear-resistant reducing pipe fitting. After connecting the No. 1 connecting pipe and the No. 2 connecting pipe with their respective No. 1 connecting flanges by bolts, the protective mechanism can effectively protect the No. 1 connecting flange, while the sealing layer ensures the sealing between the No. 1 and No. 2 connecting pipes. In addition, after the expansion flange is moved, the No. 2 connecting flange can be connected to the expansion flange. Through the design of the sealing layer, media leakage can be effectively prevented, ensuring stable operation under high temperature and high pressure conditions. The high-chromium alloy material has excellent wear resistance, which can extend the service life of the pipe fitting and reduce maintenance costs. The design of the expansion flange also allows the pipe fitting to flexibly adapt to different connection requirements, optimize the pipeline layout, and improve the flexibility of the system.

[0017] 2. This utility model proposes an easy-to-connect high-chromium alloy wear-resistant reducing pipe fitting. Connecting rings one and two are placed after connecting flange one. A connecting plate passes through connecting blocks one and two. After pulling the movable plate backward, connecting blocks one and two come into contact. Then, releasing the movable plate causes a spring to push the locking rod into the through groove, ensuring that connecting rings one and two effectively protect the connecting flange one, preventing external impact and wear, and extending the equipment's service life. Simultaneously, the spring pushing the locking rod into the through groove ensures stability and safety after connection, reducing the risk of human error. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall front axle of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall rear axle of this utility model;

[0020] Figure 3 This is a schematic side sectional view of the present invention;

[0021] Figure 4 This is a cross-sectional schematic diagram of the No. 1 and No. 2 connecting rings of this utility model;

[0022] Figure 5 This is an isometric schematic diagram of the No. 1 connecting pipe, No. 1 connecting flange, No. 2 connecting flange and expansion flange of this utility model;

[0023] Figure 6 This is an isometric schematic diagram of the No. 1 connecting ring, the No. 2 connecting ring, the No. 1 connecting block, and the No. 2 connecting block of this utility model;

[0024] Figure 7 This is an isometric view of the connecting plate, through groove, fixing plate, fixing frame and movable plate of this utility model;

[0025] Figure 8 This is an isometric view of the connecting plate, through groove, fixing plate, and fixing frame of this utility model;

[0026] Figure 9 This utility model Figure 4 A partial schematic diagram of point A;

[0027] Figure 10 This is a cross-sectional schematic diagram of the connecting plate, fixing plate, fixing frame, movable plate and snap-fit ​​rod of this utility model.

[0028] Legend:

[0029] 1. Connecting pipe No. 1; 2. Connecting pipe No. 2; 3. Connecting flange No. 1; 4. Protective mechanism; 5. Connecting flange No. 2; 6. Expansion flange; 7. Sealing layer; 401. Connecting ring No. 1; 402. Connecting ring No. 2; 403. Connecting block No. 1; 404. Connecting block No. 2; 405. Connecting plate; 406. Through groove; 407. Fixing plate; 408. Fixing frame; 409. Spring; 410. Movable plate; 411. Snap-fit ​​rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-5 One embodiment provided by this utility model:

[0032] A high-chromium alloy wear-resistant reducing pipe fitting for easy connection includes a first connecting pipe 1, a second connecting pipe 2, and a protective mechanism 4. A first connecting flange 3 is fixedly installed on the opposite side of both the first connecting pipe 1 and the second connecting pipe 2. A sealing layer 7 is fixedly installed at the inner end of the opposite side of the first connecting pipe 1 and the second connecting pipe 2. A second connecting flange 5 is fixedly sleeved on the outer end of the opposite side of the first connecting pipe 1 and the second connecting pipe 2 near the outer side of the second connecting flange 5. Two first connecting flanges 3 are fixedly connected by bolts. Two sealing layers 7 are located at the lower ends of the two first connecting flanges 3. Two second connecting flanges 5 are respectively placed in the grooves at the front ends of the two expansion flanges 6. Both the first connecting pipe 1 and the second connecting pipe 2 are made of high-chromium alloy material.

[0033] Specifically, after connecting the No. 1 connecting pipe 1 and the No. 2 connecting pipe 2 with the No. 1 connecting flange 3, the protective mechanism 4 can effectively protect the No. 1 connecting flange 3, while the sealing layer 7 ensures the sealing between the No. 1 connecting pipe 1 and the No. 2 connecting pipe 2. In addition, after the expansion flange 6 is moved, the No. 2 connecting flange 5 can be connected to the expansion flange 6. Through the design of the sealing layer 7, media leakage can be effectively prevented, ensuring stable operation under high temperature and high pressure conditions. The high chromium alloy material has excellent wear resistance, which can extend the service life of the pipe fittings and reduce maintenance costs. The design of the expansion flange 6 also allows the pipe fittings to flexibly adapt to different connection requirements, optimize the pipeline layout, and improve the flexibility of the system.

[0034] Reference Figures 6-10The protective mechanism 4 includes a first connecting ring 401, a second connecting ring 402 hinged to one side of the first connecting ring 401, and a first connecting block 403 and a second connecting block 404 fixedly mounted on opposite ends of the other sides of the first connecting ring 401 and the second connecting ring 402, respectively. A connecting plate 405 is fixedly mounted on the upper end of the first connecting block 403, and multiple through slots 406 are opened at the front end of the connecting plate 405. A fixing plate 407 is fixedly mounted on the lower end of the second connecting block 404, and a fixing frame 408 is fixedly mounted on the rear end of the fixing plate 407. Springs 409 are provided on both sides of the inner end of the fixing frame 408. A movable plate 410 is fixedly installed at the front end of a spring 409, and a snap-fit ​​rod 411 is fixedly installed at the front end of the movable plate 410. A first connecting ring 401 contacts the lower ends of two first connecting flanges 3, and a second connecting ring 402 contacts the upper ends of two first connecting flanges 3. A connecting plate 405 passes through a first connecting block 403 and a second connecting block 404. Multiple through slots 406 are located at the lower end of the second connecting block 404. The movable plate 410 is movably installed at the lower end of the second connecting block 404 and is movably installed inside the fixed frame 408. The snap-fit ​​rod 411 passes through a fixed plate 407 and through slots 406.

[0035] Specifically, connecting ring 401 and connecting ring 402 are placed after connecting flange 3. Connecting plate 405 passes through connecting block 403 and connecting block 404. After pulling the movable plate 410 backward, connecting block 403 and connecting block 404 come into contact. Then, the movable plate 410 is released, and spring 409 pushes the locking rod 411 into the through groove 406. This ensures that connecting ring 401 and connecting ring 402 can effectively protect connecting flange 3, prevent external impact and wear, and extend the service life of the equipment. At the same time, spring 409 pushes locking rod 411 into through groove 406, ensuring the stability and safety of the connection and reducing the risk of human error.

[0036] Working principle: After connecting the No. 1 connecting pipe 1 and the No. 2 connecting pipe 2 with the No. 1 connecting flange 3 by bolts, the protective mechanism 4 can effectively protect the No. 1 connecting flange 3, while the sealing layer 7 ensures the sealing between the No. 1 connecting pipe 1 and the No. 2 connecting pipe 2. In addition, after the expansion flange 6 is moved, the No. 2 connecting flange 5 can be connected to the expansion flange 6 through the expansion flange 6.

[0037] Secondly, the first connecting ring 401 and the second connecting ring 402 are placed after the first connecting flange 3. The connecting plate 405 passes through the first connecting block 403 and the second connecting block 404. After the movable plate 410 is pulled back, the first connecting block 403 and the second connecting block 404 come into contact. Then the movable plate 410 is released, and the spring 409 pushes the snap rod 411 into the through groove 406, thereby ensuring that the first connecting ring 401 and the second connecting ring 402 can effectively protect the first connecting flange 3 and prevent external impact and wear.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A type of easily connectable high-chromium alloy wear-resistant reducing pipe fitting, comprising a first connecting pipe (1), a second connecting pipe (2), and a protective mechanism (4), characterized in that: A first connecting flange (3) is fixedly installed on the opposite side of the first connecting pipe (1) and the second connecting pipe (2). A sealing layer (7) is fixedly installed on the inner end of the opposite side of the first connecting pipe (1) and the second connecting pipe (2). A second connecting flange (5) is fixedly sleeved on the outer end of the opposite side of the first connecting pipe (1) and the second connecting pipe (2). An expansion flange (6) is movably sleeved on the outer side of the opposite side of the first connecting pipe (1) and the second connecting pipe (2) near the second connecting flange (5). The protective mechanism (4) includes a first connecting ring (401), a second connecting ring (402) is hinged to one side of the first connecting ring (401), a first connecting block (403) and a second connecting block (404) are respectively fixed at opposite ends of the first connecting ring (401) and the second connecting ring (402), a connecting plate (405) is fixedly installed at the upper end of the first connecting block (403), a plurality of through slots (406) are opened at the front end of the connecting plate (405), a fixing plate (407) is fixedly installed at the lower end of the second connecting block (404), a fixing frame (408) is fixedly installed at the rear end of the fixing plate (407), springs (409) are provided on both sides of the inner end of the fixing frame (408), a movable plate (410) is fixedly installed at the front end of the two springs (409), and a snap-fit ​​rod (411) is fixedly installed at the front end of the movable plate (410).

2. The easy-to-connect high-chromium alloy wear-resistant reducer fitting according to claim 1, characterized in that: The two No. 1 connecting flanges (3) are fixedly connected by bolts, and the two sealing layers (7) are located at the lower ends of the two No. 1 connecting flanges (3).

3. The easy-to-connect high-chromium alloy wear-resistant reducer fitting according to claim 1, characterized in that: The two No. 2 connecting flanges (5) are respectively placed in the grooves at the front end of the two expansion flanges (6), and the No. 1 connecting pipe (1) and the No. 2 connecting pipe (2) are both made of high chromium alloy material.

4. The easy-to-connect high-chromium alloy wear-resistant reducer fitting according to claim 1, characterized in that: The first connecting ring (401) contacts the lower ends of the two first connecting flanges (3), and the second connecting ring (402) contacts the upper ends of the two first connecting flanges (3).

5. The easy-to-connect high-chromium alloy wear-resistant reducer fitting according to claim 1, characterized in that: The connecting plate (405) passes through the first connecting block (403) and the second connecting block (404), and the plurality of the through slots (406) are located at the lower end of the second connecting block (404).

6. The easy-to-connect high-chromium alloy wear-resistant reducer fitting according to claim 1, characterized in that: The movable plate (410) is movably disposed at the lower end of the second connecting block (404).

7. The easy-to-connect high-chromium alloy wear-resistant reducer fitting according to claim 1, characterized in that: The movable plate (410) is movably disposed inside the fixed frame (408), and the snap-fit ​​rod (411) passes through the fixed plate (407) and the through groove (406).

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