Pipeline reducing connecting piece

Abstract

The utility model is suitable for the technical field of pipeline connecting structures, and provides a pipeline reducing connecting piece, which comprises a first connecting pipe, a second connecting pipe, a first connecting flange, a second connecting flange, a first connecting pipe and a second connecting pipe, the end of the second connecting pipe is provided with a second connecting flange corresponding to the first connecting flange, the end of the second connecting flange is provided with a plurality of sliding sleeves arranged in a sliding and nested mode, the end of each sliding sleeve is provided with a bevel edge structure, and the bevel edge structures are combined to form a transition bevel edge. And the inserting part corresponds to one of the sliding sleeves, abuts against the sliding sleeve and presses the sliding sleeve downwards into the second connecting flange, so that the connecting piece capable of adapting to reducing of pipelines with different diameters is arranged, when the connecting piece is used, when the pipelines with different diameters are connected, the connecting piece can be used for connecting the pipelines with different diameters, and the connecting piece can be used for connecting the pipelines with different diameters. And the variable-diameter pipelines are connected in an inserting manner, so that the connection of the pipelines with different diameters is further realized, and the universality is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connecting structure technical field especially relates to a pipeline reducing connector. BACKGROUND

[0002] Water supply pipe network is composed of a plurality of different sizes of water supply pipes, so it involves the connection between different water supply pipes. The water supply pipes of different diameters are generally connected by reducing pipes. The existing reducing pipe has a step surface, and the area of water flow changes suddenly at the step surface, resulting in a large impact of water flow on the reducing pipe. The connection between the reducing pipe and the pipeline is mostly threaded or directly plugged, which is inconvenient and has poor stability.

[0003] In the prior art, for example, a Chinese utility model patent with publication number CN214466826U discloses a reducing flange for connecting the pipeline of an automobile air conditioning system. The reducing flange for connecting the pipeline of the automobile air conditioning system includes a reducing flange body, two fixed blocks, mounting holes, an annular block, a sealing ring, and a clamping structure. The two fixed blocks are fixedly installed on the reducing flange body. The mounting holes are formed in the fixed blocks. The annular block is fixedly installed in the mounting hole. The sealing ring is fixedly installed in the annular block. The clamping structure is provided on the fixed block and includes a plurality of clamping blocks. The clamping blocks are slidingly installed in the mounting hole. The device has a single fixed reducing pipe in the middle transition pipe, which can only reduce the diameter of a single pipeline during fixing. The device has poor versatility and cannot meet the needs of different reducing pipelines.

[0004] In summary, the prior art has obvious inconvenience and defects in actual use, so it is necessary to improve it. UTILITY MODEL CONTENTS

[0005] In view of the above defects, the utility model aims to provide a pipeline reducing connector that can adapt to different diameter pipeline reducing connectors. When connecting pipelines of different diameters, the reducing pipeline is connected by plugging, thereby further realizing the connection of pipelines of different diameters and having strong versatility.

[0006] To achieve the above purpose, the utility model provides a pipeline reducing connector, which includes:

[0007] A first connecting pipe has a first connecting flange at one end, and the front end of the first connecting flange has a plug-in part;

[0008] Second connecting pipe, its end is equipped with second connecting flange corresponding with first connecting flane, the end of second connecting flange is equipped with several slide sleeves, the end of each slide sleeve is equipped with bevel structure, several bevel structures combine to form transition bevel, when connecting, the spigot joint part corresponds with one of slide sleeves and abuts to slide sleeve and presses down slide sleeve to the inside of second connecting flange.

[0009] In a preferred embodiment, the end of the second connecting flange is provided with a sliding groove, and the slide sleeves are slidably connected to the inside of the sliding groove. A push spring is arranged between each slide sleeve and the bottom of the sliding groove.

[0010] In a preferred embodiment, the inner side bottom of each two adjacent slide sleeves is provided with a limiting convex edge, and the outer side bottom of each slide sleeve is provided with a limiting groove matched with the limiting convex edge of the adjacent slide sleeve. The slide sleeve on the inner side slides to the inside of the sliding groove to drive the slide sleeve on the outer side to slide synchronously.

[0011] In a preferred embodiment, a sealing ring is arranged between each two adjacent slide sleeves.

[0012] In a preferred embodiment, the size of the spigot joint part corresponds to the size of the first connecting pipe, and the thickness of the spigot joint part is the same as the thickness of the slide sleeve.

[0013] In a preferred embodiment, the first connecting flange and the second connecting flange are connected by bolts. When the spigot joint part is inserted to the bottom of the sliding groove, the bolts fix the positions of the two connecting flanges.

[0014] In summary, the utility model discloses a plurality of slide sleeve structures with telescopic function and different sizes are arranged at the end of the connecting flange, so that the pipe can be directly inserted into the outside of different slide sleeves when connecting pipes with different sizes, thereby ensuring that the pipes with different sizes can be connected, and the versatility of the connection structure when connecting variable-diameter pipes is ensured, and the connection structure is optimized. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is the sectional structure schematic diagram of the utility model;

[0017] Figure 3 It is Figure 2 The enlarged structure schematic diagram of part A in figure 1;

[0018] Figure 4 It is the three-dimensional structure schematic diagram of the end of the second connecting pipe of the utility model;

[0019] Figure 5 is the first connecting pipe end part three-dimensional structure schematic view of the utility model;

[0020] Figure 6 is the sliding sleeve three-dimensional structure schematic view of the utility model;

[0021] In the drawing, 1-first connecting pipe, 11-plug-in part, 12-first connecting flange, 2-bolt, 3-second connecting pipe, 31-second connecting flange, 32-sliding groove, 33-embedded part, 4-thrust spring, 5-sliding sleeve, 51-limiting convex edge, 52-sliding sleeve body, 53-bevel structure. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0024] In addition, if the embodiments of the utility model involve the description of "first", "second", etc., the description of "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B simultaneously meet the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skill in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0025] Referring to Figures 1-6The utility model provides a pipeline reducing connector, the pipeline reducing connector includes first connecting pipe 1, and its end part is equipped with first connecting flange 12, and the front end of first connecting flange 12 is equipped with the plug -in part 11, guarantees the cooperation with the second connecting flange 31 when connecting subsequently through setting plug -in part 11, second connecting pipe 3, and its end part is equipped with the second connecting flange 31 corresponding with first connecting flange 12, and the end of second connecting flange 31 is equipped with a plurality of slide bushings 5 of sliding nested settings, and the end of each slide bushing 5 is equipped with bevel structure 53, and a plurality of bevel structures 53 combination forms transition bevel, guarantees after connecting first connecting pipe 1 and second connecting pipe 3, the transition bevel between the relatively thick connecting pipe in the inside and relatively thin pipeline is formed, thereby prevent the formation mutation section, influence liquid flow's smooth Chengdu, when connecting, plug -in part 11 corresponds with one of slide bushings 5 and abuts on slide bushing 5 and will slide bushing 5 be pressed down to the inside of second connecting flange 31, thereby guarantee normal connection between two connecting pipes, further guarantee the sealing effect between connecting pipe, thereby realize the connection between connecting pipe.

[0026] Wherein, in use, slide bushing 5 is inserted into the inside of corresponding plug -in part 11 while being pressed down, and sealing effect is formed between slide bushing 5 and plug -in part 11, thereby preventing liquid from flowing out between plug -in part 11 and slide bushing 5, to guarantee the sealing effect between the two, a sealing ring can be arranged between plug -in part 11 and slide bushing 5, and a sealing ring can also be arranged between two adjacent slide bushings 5, to guarantee the sealing effect between slide bushings 5.

[0027] Preferably, the end of the second connecting flange 31 of the utility model is provided with a sliding groove 32, and the inside of the sliding groove 32 is provided with an embedded part 33, to ensure normal sliding and limiting of the slide bushing 5, a plurality of slide bushings 5 are slidingly connected to the inside of the sliding groove 32, a push spring 4 is arranged between each slide bushing 5 and the bottom of the sliding groove 32, to ensure the reset force of the slide bushing 5 through the push spring 4, so as to reset the slide bushing 5 to the initial position, and after the plug -in part 11 is inserted, the slide bushing 5 inside the plug -in part 11 can remain in the initial position, to form the bevel structure 53 inside the plug -in part 11, further form a transition area, and ensure the smoothness of the internal liquid flow.

[0028] In addition, the inner side bottom of the adjacent two slide bushings 5 is provided with a limiting convex edge 51, the bottom of the outer side of the slide bushing 5 is provided with a limiting groove matched with the limiting convex edge 51 of the adjacent slide bushing 5, the slide bushing 5 on the inner side slides to the inside of the sliding groove 32 to drive the slide bushing 5 on the outer side to slide synchronously, to ensure that when the plug -in part 11 cooperates with the slide bushing 5, the slide bushing 5 on the corresponding size can drive the slide bushing 5 on the outer side to move synchronously, and the slide bushing 5 on the inner side of the corresponding slide bushing 5 does not move and is inserted into the inside of the plug -in part 11, to complete the sealing of the inside of the plug -in part 11.

[0029] Further, the sealing ring is arranged between the two adjacent slide sleeve bodies 52, the size of the insertion part 11 corresponds to the size of the first connecting pipe 1, the thickness of the insertion part 11 is the same as the thickness of the slide sleeve 5, the size of the slide sleeve 5 is ensured to be the same as the size of the standard pipe, or as long as the inner side wall of the insertion part 11 can be matched with the outer side of one of the slide sleeves 5, the connection effect can be achieved.

[0030] Better, the first connecting flange 12 and the second connecting flange 31 are connected through the bolt 2, when the insertion part 11 is inserted into the bottom of the sliding groove 32, the bolt 2 fixes the positions of the two connecting flanges, ensures the pressing force between the insertion part 11 and the slide sleeve 5, and ensures the sealing effect between the inner slide sleeve 5 and the insertion part 11.

[0031] In the embodiment, referring to Figures 1-6 In use, when the insertion part 11 is directly inserted into the corresponding slide sleeve 5 when the butt joint is needed, the slide sleeve 5 is matched with the insertion part 11, the slide sleeve 5 with the corresponding size is pressed into the inside of the sliding groove 32, at this time, the inner slide sleeve 5 of the corresponding slide sleeve 5 is matched with the inner wall of the insertion part 11, so that the slide sleeve 5 is matched with the insertion part 11, the insertion part 11 is matched with the slide sleeve 5, the inside is sealed, and the inner slide sleeve 5 is combined to form a transition part, so as to ensure the flow effect of the internal fluid.

[0032] Of course, the utility model also can have other various embodiments, the skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and the essence of the utility model, but these corresponding changes and deformations should all belong to the protection scope of the claims attached to the utility model.

Claims

1. A pipe reducing connector, characterized in that, The utility model relates to a kind of connecting pipe, comprising: First connecting pipe, the end is equipped with first connecting flange, the front end of the first connecting flange is equipped with plug-in part; Second connecting pipe, the end is equipped with the second connecting flange corresponding with the first connecting flange, the end of the second connecting flange is equipped with several sliding sleeves of sliding nesting arrangement, the end of each sliding sleeve is equipped with bevel structure, several bevel structures are combined to form transition bevel, when connecting, the plug-in part corresponds with one of the sliding sleeve and is abutted to sliding sleeve and sliding sleeve is pressed down to the inside of second connecting flange.

2. The pipe reducing coupling of claim 1, wherein, The end of the second connecting flange is equipped with sliding groove, and several sliding sleeves are slidingly connected to the inside of the sliding groove.

3. The pipe reducing coupling of claim 2, wherein, The inside bottom of adjacent two sliding sleeves is equipped with limiting convex edge, and the outside bottom of the sliding sleeve is equipped with limiting groove matched with the limiting convex edge of adjacent sliding sleeve.

4. The pipe reducing coupling set forth in claim 1, wherein, The sliding sleeve inside slides to the inside of sliding groove, driving the outside sliding sleeve to slide synchronously.

5. The pipe reducing coupling set forth in claim 1, wherein, Adjacent two sliding sleeves are equipped with sealing ring.

6. The pipe reducing coupling set forth in claim 3, wherein, The size of the plug-in part corresponds with the size of first connecting pipe, and the thickness of the plug-in part is same with the thickness of sliding sleeve. The first connecting flange and the second connecting flange are connected by bolt, and when the plug-in part is plugged into the bottom of the sliding groove, the bolt fixes the position of the two connecting flanges.

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