Reducing elbow

Abstract

The utility model relates to the technical field of pipe fittings, and discloses a reducing elbow which comprises an elbow pipe body and two fixing cylinders, the upper end and the lower end of the elbow pipe body are fixedly connected with the fixing cylinders, connecting mechanisms are arranged in the fixing cylinders, each connecting mechanism comprises two adapters, a plurality of sliding blocks, two shielding rings and two clamping rings, and the adapters are connected with the sliding blocks. Connecting grooves are formed in the sides, close to the center of the elbow pipe body, of the outer walls of the adapters, moving grooves are formed in the middles of the outer walls of the fixing cylinders, a plurality of sliding cavities are formed in the fixing cylinders, and the sides, close to the centers of the adapters, of the sliding blocks penetrate through the fixing cylinders and are connected with the connecting grooves in a clamped mode. The clamping ring in the connecting mechanism is used for limiting movement of the shielding ring, the shielding ring limits movement of the sliding block, the sliding block is clamped with the connecting groove, the adapter is fixed, the clamping ring is taken down, the shielding ring is moved, limitation on the sliding block is relieved, the adapter can be taken down, and therefore the reducing elbow can be disassembled and assembled conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fittings, in particular to a reducing elbow. Background Art

[0002] A reducing elbow, also known as a reducing elbow, is a component used to connect two pipes of different diameters while achieving a 90° turn. One end of the bent section can be larger or smaller than the other end, thereby meeting the need for pipe diameter adjustment.

[0003] However, since there are often impurities in the fluid flowing in the pipeline system, a lot of dirt will adhere to the inner wall of the reducing elbow after long-term use, and it needs to be cleaned regularly. However, most of the reducing elbows currently available on the market are not convenient to remove or install from the straight pipes connected at both ends, which makes it difficult for workers to remove the reducing elbow to clean the inside and then reinstall it after cleaning, which increases the difficulty of operation for workers.

[0004] Therefore, those skilled in the art provide a reducing elbow to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present utility model is to solve the shortcomings of the prior art and provide a reducing elbow. The retaining ring in the connecting mechanism limits the movement of the shielding ring, so that the shielding ring limits the movement of the slider, and the slider is engaged with the connecting groove to fix the adapter. The retaining ring is removed and the shielding ring is moved to release the restriction on the slider, so that the adapter can be removed, thereby facilitating the disassembly and assembly of the reducing elbow.

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

[0007] A reducing elbow comprises an elbow body and two fixed cylinders, wherein the upper and lower ends of the elbow body are fixedly connected to the fixed cylinders, and a connecting mechanism is provided inside the fixed cylinders, wherein the connecting mechanism comprises two adapters, a plurality of sliders, two shielding rings and two clamping rings, a connecting groove is provided on one side of the outer wall of the adapter near the center of the elbow body, and a movable groove is provided in the middle of the outer wall of the fixed cylinders;

[0008] The interior of the fixed cylinder is provided with a plurality of sliding cavities. The sides of the sliders close to the center of the adapter penetrate the fixed cylinder and are clamped and connected to the connecting groove. The clamping rings are sleeved on the movable grooves. The outer walls of the clamping rings on both sides are respectively fitted with the fixed cylinder and the shielding ring. The sides of the sliders away from the center of the adapter penetrate the fixed cylinder and are fitted with the shielding ring.

[0009] Through the above technical solution, the movement of the shielding ring is limited by the retaining ring, and the shielding ring limits the movement of the slider, so that the slider remains in a clamping state with the connecting groove, and the adapter is fixed. The retaining ring is removed and the shielding ring is moved to release the restriction on the slider, so that the adapter can be removed from the fixed tube, thereby facilitating the disassembly and assembly of the reducing elbow.

[0010] Furthermore, the outer wall of the elbow tube body is fixedly provided with a plurality of reinforcing ribs, and the inner wall of the adapter is provided with an external thread on one side away from the center of the elbow tube body;

[0011] Through the above technical solution, the overall strength of the reducing elbow can be improved and the pressure resistance can be enhanced by setting multiple reinforcing ribs on the elbow pipe body, and the external thread set on the adapter can be used to connect the straight pipe with the adapter thread, and the reducing elbow can be connected to the pipeline system.

[0012] Furthermore, the sliders all slide inside the sliding cavity, and the surfaces at both ends of the sliders are spherically convex;

[0013] Through the above technical solution, by designing the surfaces at both ends of the slider into spherical protrusions, the shielding ring can easily press the slider back into the sliding cavity, and the spherical protrusion can be used to make the adapter easily removed after the shielding ring releases the restriction on the slider.

[0014] Furthermore, the shielding rings all slide in the movable grooves, and the front ends of the clamping rings are all clamped and connected with pins;

[0015] Through the above technical solution, by clamping a pin on the clamping ring, the clamping ring will not open easily and disengage from the movable groove, so that the clamping ring can play a limiting role on the shielding ring.

[0016] Furthermore, a baffle is fixedly connected to the middle of the outer wall of the adapter, and one side of the baffle close to the center of the elbow tube body is in contact with the fixing tube;

[0017] With the above technical solution, the blocking piece fixedly connected to the outer wall of the adapter is fitted with the fixing tube, so that the shaking degree of the adapter when inserted into the fixing tube is reduced, thereby improving the stability of the connection.

[0018] Furthermore, the adapter is fixedly connected to a sealing ring on one side close to the center of the elbow tube body, and the sealing ring is tightly fitted to the fixing tube on one side away from the center of the elbow tube body;

[0019] Through the above technical solution, the sealing ring fixedly connected to the adapter is tightly fitted with the fixed cylinder, so that the gap between the adapter and the fixed cylinder is filled, thereby improving the sealing degree of the connection and preventing leakage.

[0020] The utility model has the following beneficial effects:

[0021] The utility model proposes a reducing elbow, which limits the movement of the shielding ring by means of a clamping ring in the connecting mechanism which is sleeved on the movable groove, so that the shielding ring limits the movement of multiple sliders inside the sliding cavity, so that the sliders remain in a clamping state with respect to the connecting grooves, thereby fixing the adapter. The clamping ring is removed and the shielding ring is moved to release the restriction on the sliders, so that the adapter can be removed from the fixed tube, thereby facilitating disassembly and assembly, and making it convenient for the staff to remove the reducing elbow to clean the interior and then reinstall it after cleaning, thereby reducing the operating difficulty for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of a reducing elbow proposed by the utility model;

[0023] Figure 2 This is an exploded view of a reducing elbow proposed in the utility model;

[0024] Figure 3 This is a side sectional view of a reducing elbow proposed by the utility model;

[0025] Figure 4 This is a front cross-sectional view of a reducing elbow proposed by the utility model;

[0026] Figure 5 for Figure 3 A magnified image of the middle figure.

[0027] Description of reference numerals:

[0028] 1. Elbow tube body; 2. Reinforcement rib; 3. Fixed cylinder; 4. Connecting mechanism; 401. Adapter; 402. Connecting groove; 403. Moving groove; 404. Sliding cavity; 405. Slider; 406. Cover ring; 407. Snap ring; 408. Pin; 5. Baffle; 6. Sealing ring; 7. External thread. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, not all of the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1-5The utility model provides a specific embodiment: a reducing elbow, including an elbow tube body 1 and two fixed cylinders 3, characterized in that: the upper end and the lower end of the elbow tube body 1 are fixedly connected to the fixed cylinder 3, and a connecting mechanism 4 is provided inside the fixed cylinder 3. The connecting mechanism 4 includes two adapters 401, multiple sliders 405, two shielding rings 406 and two clamping rings 407. A connecting groove 402 is opened on one side of the outer wall of the adapter 401 near the center of the elbow tube body 1, and a movable groove 403 is opened in the middle of the outer wall of the fixed cylinder 3;

[0031] A plurality of sliding cavities 404 are provided inside the fixed cylinder 3. The side of the slider 405 close to the center of the adapter 401 passes through the fixed cylinder 3 and is clamped and connected to the connecting groove 402. The snap rings 407 are sleeved on the movable groove 403. The outer walls on both sides of the snap ring 407 are respectively fitted with the fixed cylinder 3 and the covering ring 406. The side of the slider 405 away from the center of the adapter 401 passes through the fixed cylinder 3 and is fitted with the covering ring 406.

[0032] The snap ring 407 in the connecting mechanism 4 is placed on the movable groove 403 to limit the movement of the shielding ring 406, so that the shielding ring 406 limits the movement of multiple sliders 405 inside the sliding cavity 404, so that the slider 405 remains in a clamping state with the connecting groove 402, and the adapter 401 is fixed. The snap ring 407 is removed and the shielding ring 406 is moved to release the restriction on the slider 405, so that the adapter 401 can be removed from the fixed tube 3, making it easy to disassemble and assemble, and it is convenient for the staff to remove the reducing elbow to clean the inside and reinstall it after cleaning, thereby reducing the difficulty of operation for the staff.

[0033] The outer wall of the elbow tube body 1 is fixed with multiple reinforcing ribs 2, and the inner wall of the adapter 401 is provided with external threads 7 on one side away from the center of the elbow tube body 1. The multiple reinforcing ribs 2 provided on the elbow tube body 1 can improve the overall strength of the reducer elbow and enhance its pressure resistance. By utilizing the external threads 7 provided on the adapter 401, the straight pipe can be threadedly connected to the adapter 401, and the reducer elbow can be connected to the pipeline system. The sliders 405 slide inside the sliding cavity 404, and the surfaces at both ends of the slider 405 are spherical convex. By designing the surfaces at both ends of the slider 405 as spherical convex, the shielding ring 406 can easily press the slider 405 back into the sliding cavity 404, and the spherical convexity can be used to make it easy to remove the adapter 401 after the shielding ring 406 releases the restriction on the slider 405. The shielding ring 406 slides in the movable groove 403, and the front end of the clamping ring 407 is clamped and connected with the pin 4 08. By clamping a pin 408 on the clamping ring 407, the clamping ring 407 will not open easily and disengage from the movable groove 403, allowing the clamping ring 407 to play a restrictive role on the shielding ring 406. The middle part of the outer wall of the adapter 401 is fixedly connected with a baffle 5, and the side of the baffle 5 close to the center of the elbow tube body 1 is in contact with the fixed tube 3, so that the shaking degree of the adapter 401 when inserted into the fixed tube 3 is reduced, and the stability of the connection is improved. The side of the adapter 401 close to the center of the elbow tube body 1 is fixedly connected with a sealing ring 6, and the side of the sealing ring 6 away from the center of the elbow tube body 1 is tightly fitted with the fixed tube 3. The sealing ring 6 fixedly connected on the adapter 401 is tightly fitted with the fixed tube 3, so that the gap between the adapter 401 and the fixed tube 3 is filled, thereby improving the sealing degree of the connection and preventing leakage.

[0034] Working principle: When using the reducing elbow, the staff first uses the external thread 7 on the adapter 401 to connect it to the external straight pipe, then inserts the adapter 401 into the fixed cylinder 3, moves the shielding ring 406 to force the slider 405 to retract the sliding cavity 404, and then puts the retaining ring 407 on the movable groove 403, and clamps the pin 408, so that the slider 405 remains in the clamping state of the connecting groove 402 on the adapter 401, fixes the adapter 401, and then connects the reducing elbow to the pipeline system. Finally, the staff can remove the pin 408, remove the retaining ring 407, move the shielding ring 406, and release the restriction on the slider 405. At this time, the staff can separate the elbow pipe body 1 from the adapter 401 for cleaning and maintenance.

[0035] In this article, there are several points to note:

[0036] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0037] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0038] Finally, it should be noted that the above is only a preferred specific implementation method of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned specific implementation methods, those skilled in the art can still modify the technical solutions described in the aforementioned specific implementation methods or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A reducing elbow, comprising an elbow body (1) and two fixing cylinders (3), characterized in that: The upper end and the lower end of the elbow tube body (1) are fixedly connected to the fixed cylinder (3); a connecting mechanism (4) is provided inside the fixed cylinder (3); the connecting mechanism (4) comprises two adapters (401), a plurality of sliders (405), two shielding rings (406) and two snap rings (407); a connecting groove (402) is provided on one side of the outer wall of the adapter (401) near the center of the elbow tube body (1); and a movable groove (403) is provided in the middle of the outer wall of the fixed cylinder (3); A plurality of sliding cavities (404) are provided inside the fixed cylinder (3), and the side of the slider (405) close to the center of the adapter (401) penetrates the fixed cylinder (3) and is snap-connected to the connecting groove (402), and the snap ring (407) is sleeved on the movable groove (403). The outer walls of both sides of the snap ring (407) are respectively fitted with the fixed cylinder (3) and the shielding ring (406), and the side of the slider (405) away from the center of the adapter (401) penetrates the fixed cylinder (3) and is snap-connected to the shielding ring (406).

2. The reducing elbow according to claim 1, characterized in that: The outer wall of the elbow tube body (1) is fixedly provided with a plurality of reinforcing ribs (2), and the inner wall of the adapter (401) is provided with an external thread (7) on one side away from the center of the elbow tube body (1).

3. The reducing elbow according to claim 1, characterized in that: The sliders (405) all slide inside the sliding cavity (404), and the surfaces at both ends of the sliders (405) are spherically convex.

4. The reducing elbow according to claim 1, characterized in that: The shielding rings (406) all slide in the movable grooves (403), and the front ends of the snap rings (407) are all snap-connected with pins (408).

5. The reducing elbow according to claim 1, characterized in that: A baffle (5) is fixedly connected to the middle of the outer wall of the adapter (401), and one side of the baffle (5) close to the center of the elbow tube body (1) is in contact with the fixing cylinder (3).

6. The reducing elbow according to claim 1, characterized in that: The side of the adapter (401) close to the center of the elbow tube body (1) is fixedly connected to a sealing ring (6), and the side of the sealing ring (6) away from the center of the elbow tube body (1) is tightly fitted with the fixing cylinder (3).

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