Conversion connecting piece for connecting pipelines with different sizes

Abstract

The utility model relates to the technical field of pipeline connecting pieces, and discloses a conversion connecting piece for connecting pipelines with different sizes, which comprises a connecting main body, a connecting ring I is fixedly connected to the periphery of one end of the connecting main body, a connecting ring II is attached to one side wall of the connecting ring, one side of each fixing plate is rotatably connected with a bidirectional screw rod, and the other side of each fixing plate is rotatably connected with a screw rod. One ends of the two bidirectional screw rods penetrate through the inner side wall of the fixing plate, the two ends of the two bidirectional screw rods are in threaded connection with moving plates, the ends, away from the bidirectional screw rods, of the multiple moving plates are fixedly connected with arc plates, and the inserting rods on one side penetrate into the second connecting ring. The inserting rods on the other side penetrate into the first connecting ring. According to the connecting piece, after the first connecting ring and the second connecting ring are attached to each other, the two-way screw rod is rotated so that the inserting rod can penetrate into the first connecting ring and the second connecting ring to be positioned, and then the effect that the connecting piece and the pipeline can be conveniently connected is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connectors, in particular to a conversion connector for connecting pipelines of different sizes. Background Art

[0002] Pipes are part of a piping system used to transport fluids such as liquids, gases, and particles. They are widely used in industry, construction, agriculture, and other fields. For example, pipes can be used to transport water, oil, natural gas, chemicals, food, and other substances. When laying pipes, it is usually necessary to connect and fix two pipes. When connecting pipes of different sizes, swivel connectors that can be used for different pipe diameters are usually required for fixing.

[0003] After searching, the Chinese patent announcement number: CN218719521U discloses a simple pipeline maintenance connector, including a water supply pipeline, which is provided with two groups. The ends of the two groups of water supply pipelines are both equipped with flanges, and the two groups of water supply pipelines are connected by a free connector, and a sealing member is provided between the water supply pipeline and the free connector; the beneficial effects are: the simple pipeline maintenance connector proposed in the utility model applies the principle of A-type cast iron pipe socket connection, adopts rubber gasket sealing, and is fixed by flange cover, and the free connector can be applied to two disconnected pipelines with different spacings, and the length of the connector can be freely adjusted according to the pipeline spacing, so as to achieve the purpose of flexible connection and firm fixation; however, when the pipelines in the application are connected, multiple bolts need to be screwed for fixing, which makes it inconvenient for the staff to connect and disassemble the pipelines, and the actual use effect is poor. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a conversion connector for connecting pipes of different sizes, aiming to improve the problem in the prior art that multiple bolts need to be screwed for fixing, causing inconvenience to workers when installing and disassembling pipes.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a conversion connector for connecting pipes of different sizes, including a connecting body, a sealing mechanism is arranged in the connecting body, a connecting ring 1 is fixedly connected to the outer periphery of one end of the connecting body, a connecting ring 2 is fitted to one side wall of the connecting ring, a connecting pipe is fixedly connected to the inner wall of the connecting ring 2, and fixing plates are arranged on the front and rear sides of the ends close to each other of the connecting ring 1 and the connecting ring 2, one side of the two fixing plates is rotatably connected with a bidirectional screw, one end of the two bidirectional screws passes through the inner wall of the fixing plate, both ends of the two bidirectional screws are threadedly connected with a movable plate, a plurality of the movable plates are fixedly connected with an arc plate at one end away from the bidirectional screw, and the arc plates on both sides are fixedly connected with an insertion rod on the sides close to each other, the insertion rod on one side passes through the connecting ring 2, and the insertion rod on the other side passes through the connecting ring 1.

[0006] As a further description of the above technical solution:

[0007] The sealing mechanism includes a sealing ring, which is fixedly connected to one end of the connecting pipe close to the connecting body. The connecting body is provided with a chamber close to one end of the connecting pipe. A movable ring is slidably connected in the chamber. One end of a plurality of springs is fixedly connected to one side of the movable ring. The other ends of the plurality of springs are fixedly connected to the inner wall of the chamber. A sealing ring is fixedly connected to the other side of the movable ring. The sealing ring penetrates into the chamber and abuts against the sealing ring.

[0008] As a further description of the above technical solution:

[0009] Limiting rods are arranged on the adjacent sides of the two bidirectional screw rods, and both ends of the two limiting rods penetrate the movable plate and are fixedly connected to the inner side walls of the fixed plate.

[0010] As a further description of the above technical solution:

[0011] The front and rear sides of the connecting ring 1 and the connecting ring 2 close to each other are provided with connecting grooves, and connecting blocks are engaged in the connecting grooves on the front and rear sides. The ends away from the two connecting blocks are fixedly connected to the fixing plate.

[0012] As a further description of the above technical solution:

[0013] One ends of the two bidirectional screws are both rotatably connected to the inner side wall of the fixing plate.

[0014] As a further description of the above technical solution:

[0015] The front and rear parts of one side of the second connecting ring are fixedly connected with positioning plates, and the two positioning plates are penetrated into the first connecting ring.

[0016] As a further description of the above technical solution:

[0017] One end of a plurality of guide rods is fixedly connected to the inner side wall of the chamber, and the other ends of the plurality of guide rods all pass through the moving ring and are fixedly connected to the other inner side wall of the chamber.

[0018] As a further description of the above technical solution:

[0019] The apertures at both ends of the connecting body are different in size.

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

[0021] 1. In the utility model, after the connecting ring 1 and the connecting ring 2 are fitted together, the connected movable plate and the arc plate can be driven to approach each other by rotating the bidirectional screw, so that the insertion rod can be respectively passed through the connecting ring 1 and the connecting ring 2 for positioning, thereby achieving the effect of facilitating the connection between the connector and the pipeline.

[0022] 2. In the utility model, when the connecting body is connected to the connecting pipe, the sealing ring will compress the sealing ring and the spring. Therefore, the sealing ring is continuously pressed under the joint action of the moving ring and the sealing ring, thereby ensuring the sealing of the connecting piece and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a conversion connector for connecting pipes of different sizes proposed by the utility model;

[0024] Figure 2 A front cross-sectional view of a conversion connector for connecting pipes of different sizes proposed by the utility model;

[0025] Figure 3 The utility model discloses a side cross-sectional view of a conversion connector for connecting pipes of different sizes.

[0026] Legend:

[0027] 1. Connecting body; 2. Sealing mechanism; 201. Sealing ring; 202. Chamber; 203. Sealing ring; 204. Moving ring; 205. Guide rod; 206. Spring; 3. Connecting ring 1; 4. Connecting ring 2; 5. Connecting pipe; 6. Connecting block; 7. Fixed plate; 8. Bidirectional screw; 9. Moving plate; 10. Arc plate; 11. Limiting rod; 12. Inserting rod; 13. Positioning plate; 14. Connecting groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-Figure 3 The utility model provides an embodiment: a conversion connector for connecting pipes of different sizes, including a connecting body 1, a sealing mechanism 2 is arranged inside the connecting body 1, a connecting ring 1 3 is fixedly connected to the outer periphery of one end of the connecting body 1, a connecting ring 2 4 is attached to the side wall of the connecting ring 1 3, a connecting pipe 5 is fixedly connected to the inner wall of the connecting ring 2 4, and a fixing plate 7 is arranged on the front and rear sides of the close ends of the connecting ring 1 3 and the connecting ring 2 4, and two fixing plates 7 are rotatably connected to one side of each of the two fixing plates 7, and one end of each of the two two-way screws 8 passes through the inner wall of the fixing plate 7, and the two fixing plates 7 are connected to the inner wall of the fixing plate 7. Both ends of the two-way screws 8 are threadedly connected to a movable plate 9, and one end of the movable plates 9 away from the two-way screws 8 is fixedly connected to an arc plate 10, and the arc plates 10 on both sides are fixedly connected to the adjacent sides thereof. The adjacent sides of the arc plates 10 on both sides are fixedly connected to an insertion rod 12, and the insertion rod 12 on one side is penetrated into the connecting ring 2 4, and the insertion rod 12 on the other side is penetrated into the connecting ring 1 3; limit rods 11 are arranged on the adjacent sides of the two two-way screws 8, and both ends of the two limit rods 11 penetrate the movable plate 9 and are fixedly connected to the inner side walls of the fixed plate 7; one end of the two two-way screws 8 is rotatably connected to the inner side wall of the fixed plate 7;

[0030] Specifically, when it is necessary to connect the connector to the pipeline, the connecting ring 1 3 and the connecting ring 2 4 can be fitted together, and then the fixed plate 7 is placed on the front and rear sides of the connecting ring 1 3 and the connecting ring 2 4, and the arc plate 10 is placed on one side of the connecting ring 1 3 and the other side of the connecting ring 2 4 respectively, and then the connected movable plate 9 can be driven to move by rotating the bidirectional screw 8. Since the movable plate 9 also passes through the limiting rod 11, the movable plate 9 can be limited under the action of the limiting rod 11 to prevent it from rotating with the rotation of the bidirectional screw 8, so that the bidirectional When the screw 8 rotates, it can drive the movable plates 9 on both sides of the connection to approach or move away at the same time. Therefore, when the movable plates 9 approach at the same time, they can drive the arc plates 10 connected to each other to approach each other. At the same time, the bidirectional screw 8 is also connected to the inner wall of the fixed plate 7, so as to ensure the stability of the movement of the bidirectional screw 8 and its connecting parts. When the arc plates 10 are respectively fitted with the connecting ring 1 3 and the connecting ring 2 4, the multiple plug rods 12 connected to the arc plates 10 will respectively penetrate into the connecting ring 1 3 and the connecting ring 2 4 for positioning, thereby achieving the effect of facilitating the connection of the connecting parts to the pipeline.

[0031] Reference Figure 1-Figure 3The sealing mechanism 2 includes a sealing ring 201, which is fixedly connected to one end of the connecting tube 5 close to the connecting body 1. A chamber 202 is provided at one end of the connecting body 1 close to the connecting tube 5. A moving ring 204 is slidably connected in the chamber 202. One end of the moving ring 204 is fixedly connected to one end of a plurality of springs 206. The other ends of the plurality of springs 206 are fixedly connected to the inner wall of the chamber 202. A sealing ring 203 is fixedly connected to the other side of the moving ring 204. The sealing ring 201 penetrates into the chamber 202 and abuts against the sealing ring 203. One end of a plurality of guide rods 205 is fixedly connected to the inner wall of the chamber 202. The other ends of the plurality of guide rods 205 penetrate the moving ring 204 and are fixedly connected to the other side wall in the chamber 202.

[0032] Specifically, when the connecting body 1 is connected to the connecting tube 5, the sealing ring 201 on the connecting tube 5 will be inserted into the chamber 202 in the connecting body 1. During the insertion process, the sealing ring 201 will contact and compress the sealing ring 203. When the sealing ring 203 is compressed, it will also push the movable ring 204 to move and compress the spring 206 connected to the movable ring 204. When the spring 206 is compressed, it will apply a force in the opposite direction, thereby driving the movable ring 204 to squeeze the sealing ring 203, and under the joint action of the movable ring 204 and the sealing ring 201, the sealing ring 203 is continuously pressed, thereby ensuring the sealing of the connecting piece and the pipeline. At the same time, under the action of the guide rod 205, the movable ring 204 can be limited, thereby ensuring the stability of the movable ring 204 and its connecting piece during movement.

[0033] Reference Figure 1-Figure 3 , the front and rear sides of the connecting ring 1 3 and the connecting ring 2 4 close to each other are provided with connecting grooves 14, and the connecting blocks 6 are engaged in the front and rear connecting grooves 14, and the two connecting blocks 6 are fixedly connected to the fixing plate 7 at the ends away from each other; the front and rear parts of one side of the connecting ring 2 4 are fixedly connected with positioning plates 13, and the two positioning plates 13 are penetrated into the connecting ring 1 3; the apertures at both ends of the connecting body 1 are different in size;

[0034] Specifically, by providing the connecting groove 14, when the staff installs the fixing plate 7, they can insert the connecting block 6 connected to the fixing plate 7 into the connecting groove 14 for positioning, thereby facilitating the staff to position and install the fixing plate 7; and when the connecting ring 1 3 is fitted with the connecting ring 2 4, the positioning plate 13 fixed to the connecting ring 2 4 can be inserted into the connecting ring 1 3 for positioning, thereby facilitating the staff to fit and fix the connecting ring 1 3 and the connecting ring 2 4.

[0035] Working principle: In actual use, the connecting ring 1 3 and the connecting ring 2 4 can be fitted together, and then the fixed plate 7 is placed on the front and rear sides of the connecting ring 1 3 and the connecting ring 2 4, and the arc plate 10 is placed on both sides of the connecting ring 1 3 and the connecting ring 2 4 respectively. By rotating the bidirectional screw 8, the connected movable plate 9 can be driven to approach or move away at the same time. When the movable plates 9 are approached at the same time, the arc plates 10 can be driven to approach each other, so that the insertion rod 12 can be respectively penetrated into the connecting ring 1 3 and the connecting ring 2 4 for positioning, thereby achieving the effect of facilitating the connection of the connector to the pipeline; in addition, when the connecting body 1 is connected to the connecting pipe 5, the sealing ring 201 will be inserted into the chamber 202 and compress the sealing ring 203, and will push the movable ring 204 to compress the spring 206. When the spring 206 is compressed, it will apply pressure in the opposite direction, thereby driving the movable ring 204 to squeeze the sealing ring 203, and under the joint action of the movable ring 204 and the sealing ring 201, the sealing ring 203 is continuously pressed, thereby ensuring the sealing of the connector and the pipeline.

[0036] Finally, it should be noted that the above is only a preferred embodiment 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 embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conversion connector for connecting pipes of different sizes, comprising a connecting body (1), characterized in that: A sealing mechanism (2) is provided inside the connecting body (1); a connecting ring 1 (3) is fixedly connected to the outer periphery of one end of the connecting body (1); a connecting ring 2 (4) is attached to the side wall of the connecting ring 1 (3); a connecting pipe (5) is fixedly connected to the inner wall of the connecting ring 2 (4); fixing plates (7) are provided on the front and rear sides of the adjacent ends of the connecting ring 1 (3) and the connecting ring 2 (4); two bidirectional screws (8) are rotatably connected to one side of the two fixing plates (7); and the two bidirectional screws (8) are fixedly connected to the two bidirectional screws (8) on the inner wall of the connecting ring 1 (3). One end of the screw rod (8) passes through the inner wall of the fixed plate (7), and both ends of the two bidirectional screw rods (8) are threadedly connected to the movable plate (9), and one end of the plurality of movable plates (9) away from the bidirectional screw rod (8) is fixedly connected to the arc plate (10), and the arc plates (10) on both sides are fixedly connected to the adjacent sides thereof with an insertion rod (12), and the insertion rod (12) on one side passes through the second connecting ring (4), and the insertion rod (12) on the other side passes through the first connecting ring (3).

2. A conversion connector for connecting pipes of different sizes according to claim 1, characterized in that: The sealing mechanism (2) comprises a sealing ring (201), wherein the sealing ring (201) is fixedly connected to one end of the connecting tube (5) close to the connecting body (1), and a chamber (202) is provided at one end of the connecting body (1) close to the connecting tube (5). A moving ring (204) is slidably connected in the chamber (202), and one end of a plurality of springs (206) is fixedly connected to one side of the moving ring (204), and the other ends of the plurality of springs (206) are fixedly connected to the inner wall of the chamber (202). A sealing ring (203) is fixedly connected to the other side of the moving ring (204), and the sealing ring (201) passes through the chamber (202) and abuts against the sealing ring (203).

3. The conversion connector for connecting pipes of different sizes according to claim 1, characterized in that: Limit rods (11) are provided on the adjacent sides of the two bidirectional screw rods (8), and both ends of the two limit rods (11) penetrate the movable plate (9) and are fixedly connected to the inner side walls of the fixed plate (7).

4. The conversion connector for connecting pipes of different sizes according to claim 1, characterized in that: The front and rear sides of the connecting ring 1 (3) and the connecting ring 2 (4) close to each other are provided with connecting grooves (14), and connecting blocks (6) are engaged in the connecting grooves (14) on the front and rear sides, and the ends away from each other of the two connecting blocks (6) are fixedly connected to the fixing plate (7).

5. The conversion connector for connecting pipes of different sizes according to claim 1, characterized in that: One end of the two bidirectional screw rods (8) is rotatably connected to the inner wall of the fixing plate (7).

6. The conversion connector for connecting pipes of different sizes according to claim 1, characterized in that: The front and rear parts of one side of the second connecting ring (4) are fixedly connected with positioning plates (13), and the two positioning plates (13) are both inserted into the first connecting ring (3).

7. The conversion connector for connecting pipes of different sizes according to claim 2, characterized in that: One end of a plurality of guide rods (205) is fixedly connected to the inner side wall of the chamber (202), and the other ends of the plurality of guide rods (205) all pass through the movable ring (204) and are fixedly connected to the other inner side wall of the chamber (202).

8. The conversion connector for connecting pipes of different sizes according to claim 1, characterized in that: The apertures at both ends of the connecting body (1) are different in size.

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