Pipeline connecting device for building heating and ventilation heating pipelines

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a pipeline connecting device for building heating and ventilation heating pipelines, which comprises suite units respectively arranged on two to-be-connected pipelines and a connecting pile casing for connecting the two suite units, an adjustable buffer pipeline is arranged between the two external member units; and each external member unit comprises an inner lantern ring and an outer lantern ring which are nested with each other. According to the pipeline connecting device for the building heating and ventilation heating pipelines, welding or flange plate connecting does not need to be conducted on the ends of the two to-be-connected pipelines, only threads need to be formed in the ends of the two to-be-connected pipelines, operation is convenient, and the working procedure is simple; when the joint of the two to-be-connected pipelines needs to be demounted in the later period and needs to be in contact connection, due to the fact that the joint is in threaded connection and clamped connection, the pipeline connecting device is convenient and fast to mount and demount, and the pipeline connecting device can be recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, and more specifically, particularly relates to a pipeline connection device for building HVAC heating pipelines. Background Art

[0002] During the construction of building HVAC, it is often necessary to connect the heating pipes. The patent with announcement number CN221300451 U discloses a pipe connection device for building HVAC heating pipes, wherein a mounting flange 1 is integrally sleeved on one end of the heating delivery pipe, a connecting pipe is integrally connected to one end of the heating delivery pipe, a pipe connecting sleeve is provided between two heating delivery pipes, mounting flanges 2 matching the mounting flange 1 are provided at both ends of the pipe connecting sleeve, the heating delivery pipe and the pipe connecting sleeve are connected by the mounting flange 1 and the mounting flange 2, the inner sleeves are connected at both ends of the inner wall of the pipe connecting sleeve, the heating delivery pipe and the pipe connecting sleeve are connected by the mounting flange 1 and the mounting flange 2, the connecting pipe connected to one end of the heating delivery pipe is inserted into the connecting cavity formed between the pipe connecting sleeve and the inner sleeve, and the outer sealing layer cooperates with the elastic structural layer for sealing.

[0003] However, the above-mentioned pipe connecting device for heating pipes needs to be integrally mounted with the heating pipes to be connected during connection, which is cumbersome and invariable. In addition, when the heating pipes are removed and disconnected at a later stage, the flanges are left on the heating pipes, which is not convenient for reusing the heating pipes. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a pipe connecting device for building HVAC heating pipes.

[0005] A pipe connecting device for building HVAC heating pipes, comprising:

[0006] Suite units respectively arranged on two pipes to be connected, and a connecting casing connecting the two suite units;

[0007] An adjustable buffer pipe is arranged between the two kit units;

[0008] The kit unit comprises an inner sleeve ring and an outer sleeve ring which are nested with each other.

[0009] Furthermore, the two kit units include a first kit unit and a second kit unit, which are respectively arranged at the ends of the two pipes to be connected.

[0010] Furthermore, the outer walls of the two ends of the pipes to be connected are provided with threads.

[0011] Further, the first kit unit comprises a first inner sleeve ring threadedly connected to one of the ends of the pipe to be connected, and a first outer sleeve ring nested in the first inner sleeve ring;

[0012] The second set unit comprises a second inner sleeve ring threadedly connected to the other end of the pipe to be connected, and a second outer sleeve ring nested in the second inner sleeve ring.

[0013] Furthermore, the first inner ring and the second inner ring have the same structure;

[0014] The first inner sleeve ring comprises a first inner sleeve body and a first edge which are integrally connected, the inner side wall of the first inner sleeve body is provided with threads, the first edge is arranged outside one end of the first inner sleeve body, the first edge comprises a first rib arranged circumferentially, and the first rib and the outer side surface of the first inner sleeve body form a first groove;

[0015] Furthermore, the first outer collar and the second outer collar have the same structure;

[0016] The first outer sleeve ring includes an integrally connected second sleeve body and a second edge, the outer wall of the second sleeve body is provided with threads, the second edge is located inside the second sleeve body, the second edge includes a circumferentially arranged second rib, and the second rib and the inner side surface of the second sleeve body form a second groove.

[0017] Further, the first rib is matched with the second groove, and the second rib is matched with the first groove.

[0018] Furthermore, the thread of the first inner sleeve body is adapted to the thread of the outer wall of the pipe to be connected;

[0019] The inner side wall of the connecting sleeve is provided with two threads of the same length and opposite directions, and the threads of the second outer sleeve body are matched with the threads of the inner side wall of the connecting sleeve.

[0020] Furthermore, the adjustable buffer pipe includes a first buffer tube and a second buffer tube which are plugged into each other.

[0021] Furthermore, one end of the first buffer tube is integrally connected with a convex tube, and one end of the second buffer tube is integrally connected with a concave tube, the convex tube can slide in the concave tube, and the outer diameter of the convex tube is matched with the inner diameter of the concave tube.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The pipe connecting device for building HVAC heating pipes does not require welding or connecting flanges at the ends of the two pipes to be connected. It only needs to open threads at the ends of the two pipes to be connected. The operation is convenient and the process is simple. When the connection between the two pipes to be connected needs to be dismantled later and needs to be contacted and connected, since the connection is a threaded connection and is mutually clamped, the installation and disassembly operation is convenient and quick, and the pipe connecting device can be recycled.

[0024] The pipe connecting device for building HVAC heating pipes has a first inner ring and a second inner ring threadedly connected to the ends of two pipes to be connected, and then the first outer ring and the second outer ring are respectively put on the edges of the first inner ring and the second inner ring, and then the connecting sleeve is twisted so that the two ends of the connecting sleeve are respectively threadedly connected to the ends of the first outer ring and the second outer ring, so as to realize the connection of the two pipes to be connected. The structure is simple, the operation is convenient, and it can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of a pipe connecting device for building HVAC heating pipes in an embodiment.

[0027] Figure 2 It is a cross-sectional view of a pipe connecting device for building HVAC heating pipes in an embodiment.

[0028] Figure 3 It is an exploded schematic diagram of a pipe connecting device for building HVAC heating pipes in an embodiment.

[0029] Figure 4 2 is an exploded schematic diagram of the first kit unit in the embodiment.

[0030] Figure 5 is a cross-sectional view of the first kit unit in the embodiment.

[0031] Figure 6 is a schematic diagram of an adjustable buffer pipeline in an embodiment.

[0032] In the figure: 1, first kit unit; 11, first inner sleeve ring; 111, first inner sleeve body; 112, first rib; 113, first groove; 12, first outer sleeve ring; 121, second sleeve body; 122, second rib; 123, second groove;

[0033] 2. Second set unit; 21. Second inner sleeve ring; 22. Second outer sleeve ring;

[0034] 3. Pipelines to be connected;

[0035] 4. Connect the casing;

[0036] 5. first buffer tube; 51. convex tube;

[0037] 6. A second buffer tube; 61. A concave tube. DETAILED DESCRIPTION

[0038] 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.

[0039] like Figure 1-Figure 5 As shown, this embodiment discloses a pipe connecting device for building HVAC heating pipes, including kit units respectively arranged on two pipes to be connected, a connecting casing connecting the two kit units, and an adjustable buffer pipe arranged between the two kit units, wherein the kit unit includes an inner ring and an outer ring nested with each other.

[0040] Specifically, the two sets of kit units include a first kit unit 1 and a second kit unit 2, which are respectively arranged at the ends of two to-be-connected pipes 3. The outer walls of the ends of the two to-be-connected pipes 3 are provided with threads.

[0041] like Figure 1-Figure 5As shown, the first set unit 1 includes a first inner sleeve ring 11 threadedly connected to one end of the pipe 3 to be connected, and a first outer sleeve ring 12 nested in the first inner sleeve ring 11. Specifically, the first inner sleeve ring 11 includes a first inner sleeve body 111 and a first edge connected in one piece, the inner side wall of the first inner sleeve body 111 is provided with threads, the first edge is arranged outside one end of the first inner sleeve body 111, the first edge includes a circumferentially arranged first rib 112, and the first rib 112 and the outer side surface of the first inner sleeve body 112 form a first groove 113. The first outer sleeve ring 12 includes a second outer sleeve body 121 and a second edge connected in one piece, the outer side wall of the second outer sleeve body 121 is provided with threads, the second edge is located inside the second outer sleeve body 121, the second edge includes a circumferentially arranged second rib 122, and the second rib 122 and the inner side surface of the second outer sleeve body 121 form a second groove 123. It is worth noting that the first rib 112 is matched with the second groove 123, and the second rib 122 is matched with the first groove 113. Since the thread of the first inner sleeve body 111 is matched with the thread of the outer wall of the pipe 3 to be connected, the first inner sleeve ring 11 can be threadedly connected to the end of the pipe 3 to be connected. With this structural design, when the first inner sleeve ring 11 is threadedly connected to a pipe 3 to be connected, the first outer sleeve ring 12 is clamped into the first groove 113 of the first inner sleeve ring 11 through its second rib 122, thereby forming a tight connection between the first inner sleeve ring 11 and the second inner sleeve ring.

[0042] The second kit unit 2 includes a second inner sleeve 21 threadedly connected to the end of another pipe 3 to be connected, and a second outer sleeve 22 nested in the second inner sleeve 21. The structure of the second inner sleeve 21 is the same as that of the first inner sleeve 11, and the structure of the second outer sleeve 22 is the same as that of the first outer sleeve 12. Therefore, in the second kit unit 2, the sleeve connection principle of the second inner sleeve 21 and the second outer sleeve is the same as that of the first kit unit 1.

[0043] In this embodiment, the connecting sleeve 4 is a cylindrical structure, and its inner wall is provided with two threads of the same length and opposite directions, and the threads of the outer walls of the two second outer sleeves are adapted to the threads of the inner wall of the connecting sleeve. Therefore, when the connecting sleeve 4 is rotated, the first set unit 1 and the second set unit 2 can be moved in opposite directions; when the connecting sleeve 4 is rotated to move the first set unit 1 and the second set unit 2 in opposite directions, the connection of the two pipes 3 to be connected is achieved.

[0044] In this embodiment, in order to maintain smooth flow of fluid after the two pipes are connected, an adjustable buffer pipe is arranged between the first suite unit 1 and the second suite unit 2. The adjustable buffer pipe includes a first buffer pipe 5 and a second buffer pipe 6 which are plugged into each other.

[0045] Specifically, if Figure 2 and Figure 6 The main body of the first buffer tube 5 is a round tube, one end of which is integrally connected to a convex tube 51; the main body of the second buffer tube 6 is a round tube, one end of which is integrally connected to a concave tube 61, the convex tube 51 can slide in the concave tube 61, and the outer diameter of the convex tube 51 is adapted to the inner diameter of the concave tube 61, and the lengths of the two are the same. When the connecting sleeve 4 is twisted to make the first set unit 1 and the second set unit 2 approach each other, the first buffer tube 5 and the second buffer tube 6 are also approached, so that the overlapped part of the concave tube 61 and the convex tube 51 will increase, so that the combination of the first buffer tube 5 and the second buffer tube 6 can buffer the fluid flowing through the joint of the two pipes.

[0046] The pipe connection device for building HVAC heating pipes provided in this embodiment has a first set unit 5 and a second set unit 6 arranged at the ends of two pipes 3 to be connected, wherein the first inner sleeve ring 11 and the second inner sleeve ring 21 are respectively threadedly connected to the ends of the two pipes 3 to be connected, and then the first outer sleeve ring 12 and the second outer sleeve ring 22 are respectively sleeved on the edges of the first inner sleeve ring 11 and the second inner sleeve ring 21, and then the connecting sleeve 4 is screwed so that the two ends of the connecting sleeve 4 are respectively threadedly connected to the ends of the first outer sleeve ring 12 and the second outer sleeve ring 22, and then the two pipes 3 to be connected are connected through this device. The pipe connection device for building HVAC heating pipes provided in this embodiment does not need to be welded or connected with flanges at the ends of the two pipes 3 to be connected, and only threads need to be opened at the ends of the two pipes 3 to be connected, which is convenient to operate and has a simple process; when the connection of the two pipes 3 to be connected needs to be dismantled later and needs to be contacted and connected, since the connection is threaded and mutually clamped, the installation and removal operation is convenient and quick, and the pipe connection device can be recycled.

[0047] In this embodiment, when the end of the convex tube 51 of the first buffer tube abuts against the convex edge of the second buffer tube 6, and at the same time, the end of the concave tube of the second buffer tube abuts against the concave edge of the first buffer tube 5, the first buffer tube 5 and the second buffer tube 6 form a tube with the same inner diameter and outer diameter, which plays a buffering role on the fluid flowing through the joint of the two pipes.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pipe connection device for building HVAC heating pipes, characterized in that: include: Kit units respectively arranged on two pipes (3) to be connected, and a connecting casing (4) connecting the two kit units; An adjustable buffer pipe is arranged between the two kit units; The kit unit comprises an inner sleeve ring and an outer sleeve ring which are nested with each other.

2. The pipe connection device for building HVAC heating pipes according to claim 1, characterized in that: The two kit units comprise a first kit unit (1) and a second kit unit (2), which are respectively arranged at the ends of the two pipes (3) to be connected.

3. The pipe connection device for building HVAC heating pipes according to claim 2, characterized in that: The outer walls of the ends of the two pipes (3) to be connected are provided with threads.

4. The pipe connection device for building HVAC heating pipes according to claim 3, characterized in that: The first kit unit (1) comprises a first inner sleeve ring (11) threadedly connected to one end of the pipe (3) to be connected, and a first outer sleeve ring (12) nested in the first inner sleeve ring (11); The second kit unit (2) comprises a second inner sleeve ring (21) threadedly connected to the end of another pipe (3) to be connected, and a second outer sleeve ring (22) nested in the second inner sleeve ring (21).

5. The pipe connection device for building HVAC heating pipes according to claim 4, characterized in that: The first inner ring (11) and the second inner ring (21) have the same structure; The first inner sleeve ring (11) comprises a first inner sleeve body (111) and a first edge which are integrally connected, the inner side wall of the first inner sleeve body (111) is provided with threads, the first edge is arranged outside one end of the first inner sleeve body (111), the first edge comprises a first rib (112) arranged circumferentially, and the first rib (112) and the outer side surface of the first inner sleeve body (111) form a first groove (113).

6. The pipe connection device for building HVAC heating pipes according to claim 5, characterized in that: The first outer ring (12) and the second outer ring (22) have the same structure; The first outer sleeve ring (12) comprises an integrally connected second sleeve body (121) and a second edge, the outer wall of the second sleeve body (121) is provided with threads, the second edge is located inside the second sleeve body (121), the second edge comprises a circumferentially arranged second rib (122), and the second rib (122) and the inner side surface of the second sleeve body (121) form a second groove (123).

7. The pipe connection device for building HVAC heating pipes according to claim 6, characterized in that: The first rib (112) is matched with the second groove (123), and the second rib (122) is matched with the first groove (113).

8. The pipe connection device for building HVAC heating pipes according to claim 7, characterized in that: The thread of the first inner sleeve body (111) is adapted to the thread of the outer wall of the pipe (3) to be connected; The inner wall of the connecting protective tube (4) is provided with two threads of the same length and opposite directions, and the threads of the second outer sleeve body (121) are adapted to the threads of the inner wall of the connecting protective tube (4).

9. The pipe connection device for building HVAC heating pipes according to claim 8, characterized in that: The adjustable buffer pipe comprises a first buffer pipe (5) and a second buffer pipe (6) which are plugged into each other.

10. The pipe connection device for building HVAC heating pipes according to claim 9, characterized in that: One end of the first buffer tube (5) is integrally connected to a convex tube (51), and one end of the second buffer tube (6) is integrally connected to a concave tube (61); the convex tube (51) is capable of sliding inside the concave tube (61), and the outer diameter of the convex tube (51) is adapted to the inner diameter of the concave tube (61).

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