Quick connecting pipe fitting

Abstract

The utility model relates to a quick connecting pipe fitting, and belongs to the field of pipeline connection. Comprising a connecting sleeve, two sliding bushings and a fixing assembly. The connecting sleeve is provided with a first connecting port and a second connecting port; the two sliding bushings are oppositely arranged in the connecting sleeve in a penetrating mode and correspondingly extend out of the first connecting port and the second connecting port, and a pipeline to be connected is arranged in the two sliding bushings in a penetrating mode and abuts against the inner walls of the sliding bushings so that the relative positions of the pipeline to be connected and the sliding bushings can be fixed; the fixing assembly is arranged outside the connecting sleeve in a sleeving mode and connected with the two sliding bushes in an abutting mode so as to fix the relative positions of the sliding bushes and the connecting sleeve. The utility model provides an axial flow fan with a noise reduction function, which is used for solving the technical problems in the prior art that the operation steps are complicated, the quick installation is not facilitated, and the joint cannot be disassembled and reused after the installation.

Description

Technical Field

[0001] The utility model belongs to the field of pipeline connection, in particular to a quick connection pipe fitting. Background Art

[0002] In the prior art, two pipe fittings are generally connected through a connecting sleeve. The connecting sleeve is first heated to make it swell and soften, and then a section of the pipe fitting is inserted into the connecting sleeve. After the connecting sleeve is cooled, a sealed connection between the pipe fitting and the connecting sleeve can be achieved, and then the other end of the connecting sleeve is connected to another pipe fitting in the same way.

[0003] In the above prior art, there are at least the following problems in the connection and installation between pipelines:

[0004] The operation steps are complicated, which is not conducive to quick installation, and the connection cannot be disassembled and reused after installation. Utility Model Content

[0005] The utility model provides an axial flow fan with a noise reduction function, which is used to solve the technical problems in the prior art that the operation steps are complicated, it is not conducive to rapid installation, and the connection parts cannot be disassembled and reused after installation.

[0006] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0007] A quick-connect pipe fitting comprises: a connecting sleeve, two sliding bushings, and a fixing assembly. The connecting sleeve has a first connecting port and a second connecting port; the two sliding bushings are arranged opposite to each other and penetrate the connecting sleeve, and extend out of the first connecting port and the second connecting port respectively; the pipe to be connected penetrates the two sliding bushings and abuts against the inner wall of the sliding bushings to fix the relative position of the connecting pipe and the sliding bushings; the fixing assembly is sleeved outside the connecting sleeve, and the fixing assembly abuts against the two sliding bushings to fix the relative position between the sliding bushings and the connecting sleeve.

[0008] Furthermore, it also includes: a fixing plate, a clamping plate, and a plurality of clamping parts. The plurality of fixing plates are installed at intervals on the end surface of the sliding bushing and extend along the axial direction of the two sliding bushings. The connecting sleeve is provided with a plurality of fixing holes, and the fixing plate is slidably installed in the fixing holes. The outer wall of the sliding bushing is provided with an annular limiting groove, and the clamping plate is installed in the annular limiting groove, and the clamping plate is provided with a plurality of sliding holes, and the annular limiting groove is provided with a plurality of through holes corresponding to the plurality of sliding holes. The plurality of clamping parts are slidably installed in the plurality of sliding holes in a one-to-one correspondence, and slide out from the through holes to abut against the pipe installed in the sliding bushing to fix the relative position between the sliding bushing and the pipe.

[0009] Furthermore, the sliding bushing further comprises: a plurality of limiting rings and a plurality of elastic elements. The plurality of limiting rings are mounted one-to-one on the inner walls of the plurality of sliding holes; the plurality of elastic elements are mounted one-to-one in the plurality of sliding holes, with one end abutting against the side wall of the limiting ring and the other end abutting against the clamping member.

[0010] Furthermore, the contact surfaces of the first connection port and the second connection port with the clamping member are inclined surfaces.

[0011] Furthermore, the fixing assembly includes: a first movable plate and a second movable plate. The first movable plate has a first mounting groove on the connecting sleeve, the first movable plate is snap-fitted in the first mounting groove, and the first movable plate slides relative to the connecting sleeve, and a mounting hole is formed on the first movable plate; one end of the second movable plate is rotatably mounted on the first movable plate, and the other end is snap-fitted with the mounting hole.

[0012] Furthermore, the fixing assembly further comprises: a fixing rod, one end of which is rotatably mounted on the second movable plate, and the other end of which is inserted into the mounting hole; and a gasket, which is mounted in the first mounting groove and abuts against the inner walls of the first movable plate and the second movable plate.

[0013] Furthermore, the fixing hole is communicated with the first mounting groove.

[0014] Furthermore, the fixing rod and the mounting hole are connected by threads.

[0015] An embodiment of the utility model provides a quick-connect pipe fitting, wherein the connecting sleeve has a first connecting port and a second connecting port, and the two connecting ports are respectively used to connect to the pipes to be connected. The two sliding bushings are respectively installed in the first connecting port and the second connecting port of the connecting sleeve, providing an abutment surface that tightly fits with the pipe to be connected to ensure that the pipe will not slip or leak during the connection process. The fixing assembly is slid to abut the sliding bushings on both sides to fix the relative position between the sliding bushing and the connecting sleeve, thereby further improving the reliability and stability of the installation, reducing the tedious steps of hot-melt connection, and improving the efficiency and convenience of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of a quick-connect pipe fitting provided in an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the sliding bushing structure provided by an embodiment of the utility model;

[0019] Figure 3 An exploded view of a sliding bushing provided in an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the mechanism of the connecting sleeve provided in an embodiment of the utility model;

[0021] Figure 5 A three-dimensional cross-sectional view of a connecting sleeve provided in an embodiment of the utility model;

[0022] Figure 6 A schematic diagram of the structure of a fixing assembly provided in an embodiment of the utility model;

[0023] Figure 7 An exploded view of a fixing assembly provided in an embodiment of the utility model;

[0024] Figure 8 for Figure 1 A schematic diagram of the structure of a quick-connect pipe fitting in the A direction;

[0025] Fig. 9 For along Figure 8 Cross-sectional view of the middle BB path;

[0026] Fig.10 for Fig. 9 Enlarged view of A1 in the figure.

[0027] In the figure:

[0028] 10-connecting sleeve; 11-first connecting port; 12-second connecting port; 20-sliding bushing; 30-fixing assembly; 21-fixing plate; 13-fixing hole; 22-clamping plate; 23-annular limiting groove; 24-sliding hole; 25-clamping piece; 26-limiting ring; 27-elastic element; 31-first movable plate; 14-first mounting groove; 32-mounting hole; 33-second movable plate; 34-fixing rod; 35-gasket. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0030] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be welding, bolt connection, or riveting; it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] Example

[0034] Please refer to Figure 1 As shown, this embodiment provides a quick-connect pipe fitting, including: a connecting sleeve 10, two sliding bushings 20, and a fixing assembly 30. The connecting sleeve 10 has a first connecting port 11 and a second connecting port 12; the two sliding bushings 20 are arranged oppositely and penetrated in the connecting sleeve 10, and extend out of the first connecting port 11 and the second connecting port 12 respectively, and the pipe to be connected is penetrated in the two sliding bushings 20 and abuts against the inner wall of the sliding bushing 20 to fix the relative position of the connecting pipe and the sliding bushing 20; the fixing assembly 30 is sleeved outside the connecting sleeve 10, and the fixing assembly 30 abuts against the two sliding bushings 20 to fix the relative position between the sliding bushing 20 and the connecting sleeve 10.

[0035] In this embodiment, if Figure 1As shown, the first connection port 11 and the second connection port 12 of the connecting sleeve 10 are used to accommodate and install the pipe to be connected, and the sliding bushing 20 is installed between the pipe and the connecting sleeve 10 to position and preliminarily fill and seal the pipes to be connected. The sliding bushing 20 is slidably installed in the connecting sleeve 10, and the fixing component 30 is snap-fitted and installed on the connecting sleeve 10. The fixing component 30 abuts against the sliding bushings 20 on both sides to further fix the relative position between the sliding bushing 20 and the connecting sleeve 10, thereby improving the stability and reliability of the installation and reducing the cumbersome steps of hot-melt connection.

[0036] Further, in some implementations of this embodiment, Figures 2 to 5 As shown, the pipe fitting further includes: a fixing plate 21, a clamping plate 22, and a plurality of clamping members 25. The plurality of fixing plates 21 are installed at intervals on the end surface of the sliding bushing 20 and extend along the axial direction of the two sliding bushings 20. The connecting sleeve 10 is provided with a plurality of fixing holes 13, and the fixing plates 21 are slidably installed in the fixing holes 13. An annular limiting groove 23 is provided on the outer wall of the sliding bushing 20, and the clamping plate 22 is installed in the annular limiting groove 23, and a plurality of sliding holes 24 are provided in the clamping plate 22, and a plurality of through holes corresponding to the plurality of sliding holes 24 are provided in the annular limiting groove 23. The plurality of clamping members 25 are slidably installed in the plurality of sliding holes 24 one by one, and slide out from the through holes to abut against the pipe installed in the sliding bushing 20, so as to fix the relative position between the sliding bushing 20 and the pipe.

[0037] In this embodiment, if Figure 3 As shown, there are three fixing plates 21, which are installed at intervals on the side of the sliding bushing 20 facing the connecting sleeve 10, as shown in FIG. Figure 5 As shown, the connection sleeve 10 has a stepped surface, on which a plurality of fixing holes 13 are opened, specifically six, and after the sliding bushings 20 on both sides slide into the first connection port 11 and the second connection port 12, a plurality of fixing plates 21 are installed in the fixing holes 13 one by one, thereby engaging with the connection sleeve 10 and preliminarily tightening the relative position between the pipeline and the connection sleeve 10. Figure 3 As shown, the clamping plate 22 is an annular plate with an opening on one side. A plurality of sliding holes 24 are spaced apart along the circumference of the clamping plate 22, and corresponding through holes are provided in the annular limiting groove 23 for installing the clamping plate 22 corresponding to the sliding holes 24. The clamping member 25 has two spherical surfaces, which respectively abut against the inner wall of the connecting sleeve 10 and the outer wall of the pipe, and are slidably installed between the sliding hole 24 and the through hole.

[0038] Further, in some implementations of this embodiment, Figure 3 and Fig.10As shown, the sliding bushing 20 further includes: a plurality of limiting rings 26 and a plurality of elastic elements 27. The plurality of limiting rings 26 are mounted on the inner walls of the plurality of sliding holes 24 in a one-to-one correspondence; the plurality of elastic elements 27 are mounted in the plurality of sliding holes 24 in a one-to-one correspondence, with one end abutting against the side wall of the limiting ring 26 and the other end abutting against the clamping member 25.

[0039] In this embodiment, if Figure 3 As shown, a plurality of limit rings 26 are installed one by one on the circumferential side of the sliding hole 24, and an elastic retaining ring is installed on the clamping member 25, which is clamped between the two curved surfaces of the clamping member 25 to abut and fix the elastic element 27, thereby improving the accuracy of positioning and the stability of sliding, thereby improving the uniformity of abutment and force application on the pipeline, and improving the installation stability. The limit ring 26 is used to abut the inner side of the elastic element 27 to position the elastic element, improve the installation accuracy, and thereby improve the reliability of the installation.

[0040] Further, in some implementations of this embodiment, Figure 5 As shown, the contact surfaces between the first connection port 11 and the second connection port 12 and the clamping member 25 are inclined surfaces.

[0041] In this embodiment, if Figure 5 As shown, by setting the inner walls of the first connection port 11 and the second connection port 12 to be inclined surfaces, the sliding bushing 20 can stably apply external force to the clamping member 25 during the sliding installation process, thereby improving the stability and convenience of installation.

[0042] Further, in some implementations of this embodiment, Figure 6 to Figure 7 As shown, the fixing assembly 30 includes: a first movable plate 31 and a second movable plate 33. The first movable plate 31 is connected to the sleeve 10 and is provided with a first mounting groove 14. The first movable plate 31 is clamped and installed in the first mounting groove 14, and the first movable plate 31 slides relative to the connecting sleeve 10. The first movable plate 31 is provided with a mounting hole 32; one end of the second movable plate 33 is rotatably installed on the first movable plate 31, and the other end is clamped and arranged with the mounting hole 32.

[0043] In this embodiment, if Figure 7 As shown, the first movable plate 31 and the second movable plate 33 are two semicircular plate members, and the second movable plate 33 is rotatably mounted on the first movable plate 31 , and they are buckled together to abut against each other, thereby fixing the fixed plate 21 .

[0044] Further, in some implementations of this embodiment, Figure 6 to Figure 7 As shown, the fixing assembly 30 further includes: a fixing rod 34 and a gasket 35. One end of the fixing rod 34 is rotatably mounted on the second movable plate 33, and the other end is passed through the mounting hole 32; the gasket 35 is installed in the first mounting groove 14, and abuts against the inner walls of the first movable plate 31 and the second movable plate 33.

[0045] In this embodiment, if Figure 6 As shown, the gasket abuts against the inner walls of the first movable plate 31 and the second movable plate 33. As the second movable plate 33 is buckled toward the first movable plate 31 and the fixing rod 34 is pushed and locked, the gasket 35 abuts against the fixing plate 21 and the first mounting groove 14, thereby improving the sealing performance and fixing stability.

[0046] Further, in some implementations of this embodiment, Figure 5 As shown, the fixing hole 13 is communicated with the first mounting groove 14 .

[0047] In this embodiment, if Figure 5 As shown, the fixing hole 13 is connected to the first mounting groove 14, thereby improving the connection accuracy and reliability.

[0048] Further, in some implementations of this embodiment, Figure 6 to Figure 7 As shown, the fixing rod 34 and the mounting hole 32 are connected by threads.

[0049] In this embodiment, if Figure 6 As shown, the fixing rod 34 is connected to the mounting hole 32 by a threaded connection. The fixing rod 34 is rotated to drive the nut and the gasket 35 on the fixing rod 34 to press the first movable plate 31 .

[0050] In summary, when a quick-connect pipe fitting is used to connect and fix multiple pipes, the sliding bushing 20 is slidably installed between the pipe to be connected and the connecting sleeve 10, and a clamping connection is formed between the fixing plate 21 and the fixing hole 13 in the connecting sleeve 10 to achieve preliminary positioning and fixing. As the clamping member 25 in the clamping plate 22 slides and abuts against the inner wall with a slope in the first connecting port 11 or the second connecting port 12, the clamping member 25 is driven to tightly abut against the outer wall of the pipe, thereby achieving preliminary filling and sealing of the pipe to be connected. The first movable plate 31 and the second movable plate 33 are buckled together with the connecting pipe. The first mounting groove 14 on the connecting sleeve 10 cooperates to fix the sliding bushing 20. Rotating the fixing rod 34 can drive the first movable plate 31 and the second movable plate 33 to press the gasket 35, thereby further fixing the sliding bushing 20. The gasket 35 improves the sealing and stability of the fixed connection. The combined use of the limit ring 26 and the elastic element 27 allows the clamping part 25 to have a buffering process when abutting the pipe, while ensuring the uniform distribution of the abutting force, thereby improving the stability and sealing of the installation, reducing the cumbersome steps of hot-melt connection, and improving the efficiency and convenience of installation and disassembly.

[0051] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope recorded in the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A quick-connect pipe fitting, characterized in that: include: A connecting sleeve (10) having a first connecting port (11) and a second connecting port (12); Two sliding bushings (20) are arranged opposite to each other and penetrated in the connecting sleeve (10), and extend out of the first connecting port (11) and the second connecting port (12) respectively. The pipe to be connected is penetrated in the two sliding bushings (20) and abuts against the inner wall of the sliding bushings (20) to fix the relative position of the connecting pipe and the sliding bushings (20); The fixing component (30) is sleeved outside the connecting sleeve (10), and the fixing component (30) abuts against the two sliding bushings (20) to fix the relative position between the sliding bushings (20) and the connecting sleeve (10).

2. A quick-connect pipe fitting according to claim 1, characterized in that: Also includes: A plurality of fixing plates (21) are installed at intervals on the end surfaces of the sliding bushings (20) and extend along the axial direction of the two sliding bushings (20); a plurality of fixing holes (13) are provided in the connecting sleeve (10), and the fixing plates (21) are slidably installed in the fixing holes (13); A clamping plate (22), an annular limiting groove (23) is provided on the outer wall of the sliding bushing (20), the clamping plate (22) is installed in the annular limiting groove (23), a plurality of sliding holes (24) are provided in the clamping plate (22), and a plurality of through holes corresponding to the plurality of sliding holes (24) are provided in the annular limiting groove (23); A plurality of clamping parts (25) are slidably installed in the plurality of sliding holes (24) in a one-to-one correspondence, and slide out from the through holes to abut against the pipe installed in the sliding bushing (20) to fix the relative position between the sliding bushing (20) and the pipe.

3. A quick-connect pipe fitting according to claim 2, characterized in that: The sliding bushing (20) further comprises: A plurality of limiting rings (26) are mounted on the inner walls of the plurality of sliding holes (24) in a one-to-one correspondence; A plurality of elastic elements (27) are installed in the plurality of sliding holes (24) in a one-to-one correspondence, with one end abutting against the side wall of the limiting ring (26) and the other end abutting against the clamping member (25).

4. A quick-connect pipe fitting according to claim 3, characterized in that: The contact surfaces of the first connection port (11) and the second connection port (12) with the clamping member (25) are inclined surfaces.

5. A quick-connect pipe fitting according to claim 4, characterized in that: The fixing assembly (30) comprises: A first movable plate (31), the connecting sleeve (10) is provided with a first mounting groove (14), the first movable plate (31) is snap-fitted and mounted in the first mounting groove (14), and the first movable plate (31) slides relative to the connecting sleeve (10), and the first movable plate (31) is provided with a mounting hole (32); One end of the second movable plate (33) is rotatably mounted on the first movable plate (31), and the other end is clamped with the mounting hole (32).

6. A quick-connect pipe fitting according to claim 5, characterized in that: The fixing assembly (30) further comprises: A fixing rod (34), one end of which is rotatably mounted on the second movable plate (33) and the other end of which is inserted into the mounting hole (32); A gasket (35) is installed in the first installation groove (14) and abuts against the inner walls of the first movable plate (31) and the second movable plate (33).

7. A quick-connect pipe fitting according to claim 6, characterized in that: The fixing hole (13) is in communication with the first mounting groove (14).

8. A quick-connect pipe fitting according to claim 7, characterized in that: The fixing rod (34) and the mounting hole (32) are connected by threads.

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