Heating and ventilation pipeline connecting device

Abstract

The utility model belongs to the technical field of heating and ventilation pipelines and discloses a heating and ventilation pipeline connecting device which comprises a first pipeline and a second pipeline, a first fixing ring is arranged on the outer side of one end of the first pipeline, a second fixing ring is arranged on the outer side of one end of the second pipeline, and the second fixing ring is clamped in the first fixing ring. The top and the bottom of the first fixing ring are each provided with a clamping groove, the clamping grooves extend into the first fixing ring, the top and the bottom of the second fixing ring are each provided with a clamping block, the clamping blocks are clamped into the clamping grooves, the second fixing ring is clamped into the first fixing ring, two heating and ventilation pipelines can be connected, the clamping blocks are taken out of the clamping grooves, and the clamping blocks are taken out of the clamping grooves. During connection, operation is easy, and dismounting and mounting are convenient; the movable sleeve is connected to the outer side of the first pipeline in a sleeving mode, then other small pipelines are clamped between the movable plate and the fixed plate, the pipelines of different specifications can be clamped through the arranged second springs, the adaptability of the pipelines is improved, and convenience is brought to clamping work of the small pipelines.

Description

Technical Field

[0001] The utility model belongs to the technical field of HVAC pipelines, and particularly relates to a connection device for HVAC pipelines. Background Technique

[0002] The thickness and specifications of HVAC pipelines can be variable according to requirements. Usually, when connecting, both ends of the air duct are always externally connected to fittings (such as elbows, reducers). Generally, there are no grooves at both ends of the HVAC pipeline and it is equipped with a sealing ring.

[0003] At present, there are still some defects in the existing connection devices for HVAC pipelines during use. The operation during connection is complex and it is not easy to disassemble and install. Therefore, we propose a connection device for HVAC pipelines. Content of the Utility Model

[0004] The purpose of the utility model is to provide a connection device for HVAC pipelines to solve the problems of complex operation and difficulty in disassembly and installation during connection as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A connection device for HVAC pipelines includes a first pipeline and a second pipeline. One end of the outer side of the first pipeline is provided with a first fixing ring, and one end of the outer side of the second pipeline is provided with a second fixing ring. The second fixing ring is clamped inside the first fixing ring. There is a card slot at both the top and bottom of the first fixing ring, and the card slot extends into the first fixing ring. There is a card block at both the top and bottom of the second fixing ring, and the card block is adapted to the card slot and is clamped inside the card slot. An activity sleeve is provided on the outer side of the first pipeline, and the activity sleeve is clamped on the outer side of the first pipeline. A number of fixing plates are provided on the outer side of the activity sleeve. The number of the fixing plates is several. One end of the fixing plate is provided with an activity plate, and the activity plate is movably connected to the outer side of the activity sleeve. One ends of both the activity plate and the fixing plate are recessed inward.

[0006] Preferably, there is a groove at both the top and bottom of the second fixing ring, and a first spring is provided inside the groove. One end of the first spring is fixedly connected inside the groove, and the other end of the first spring is fixedly connected to one side of the card block.

[0007] Preferably, there is a sealing ring on both the left and right sides of the card block, and the sealing ring is fixedly connected to the outer side of the first fixing ring.

[0008] Preferably, one end of the fixing plate is fixedly connected with a second spring. One end of the second spring is fixedly connected to the right side of the fixing plate, and the other end of the second spring is fixedly connected to the left side of the activity plate.

[0009] Preferably, the surfaces of the recessed parts at one ends of both the activity plate and the fixing plate are provided with a number of anti-slip protrusions.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. By taking out the first pipeline and the second pipeline, then clamping the clamping block inside the clamping groove, and clamping the second fixing ring inside the first fixing ring, the two HVAC pipelines can be connected. When disassembly is required, by taking out the clamping block from the clamping groove, the two pipelines can be split. The connection operation is simple, facilitating disassembly and installation.

[0012] 2. By pressing the clamping block, the first spring expands and contracts, enters the groove from the clamping groove, and separates the clamping block from the clamping groove, so that the second pipeline and the first pipeline can be split, which brings convenience to the disassembly work of the pipeline. The sealing effect during pipeline connection is improved through the provided sealing ring. By sleeving the movable sleeve on the outside of the first pipeline, and then clamping other small pipelines between the movable plate and the fixed plate, the provided second spring can clamp pipelines of different specifications tightly, improving its adaptability, and thus bringing convenience to the clamping work of small pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the structure of the clamping block and the groove of the present utility model;

[0015] Figure 3 is a schematic diagram of the structure of the movable sleeve of the present utility model.

[0016] In the figure: 1. First pipeline; 2. Second pipeline; 3. First fixing ring; 4. Second fixing ring; 5. Clamping groove; 6. Clamping block; 7. Groove; 8. First spring; 9. Sealing ring; 10. Movable sleeve; 11. Fixed plate; 12. Movable plate; 13. Second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1 - 3, the present utility model provides a technical solution for a HVAC pipeline connection device: including a first pipeline 1 and a second pipeline 2. On the outer side of one end of the first pipeline 1, there is a first fixing ring 3. On the outer side of one end of the second pipeline 2, there is a second fixing ring 4. The second fixing ring 4 is snap-fitted inside the first fixing ring 3. On both the top and bottom of the first fixing ring 3, there is a slot 5 that extends into the first fixing ring 3. On both the top and bottom of the second fixing ring 4, there is a clamping block 6 that is adapted to the slot 5, and the clamping block 6 is snap-fitted inside the slot 5. On the outer side of the first pipeline 1, there is a movable sleeve 10 that is snap-fitted on the outer side of the first pipeline 1. On the outer side of the movable sleeve 10, there are several fixing plates 11. The number of the fixing plates 11 is several. At one end of the fixing plate 11, there is a movable plate 12 that is movably connected to the outer side of the movable sleeve 10. One ends of the movable plate 12 and the fixing plate 11 are both recessed inward.

[0019] Specifically, on both the top and bottom of the second fixing ring 4, there is a groove 7. Inside the groove 7, there is a first spring 8. One end of the first spring 8 is fixedly connected inside the groove 7, and the other end of the first spring 8 is fixedly connected to one side of the clamping block 6.

[0020] Specifically, on both the left and right sides of the clamping block 6, there is a sealing ring 9 that is fixedly connected to the outer side of the first fixing ring 3.

[0021] Specifically, at one end of the fixing plate 11, there is a second spring 13 fixedly connected. One end of the second spring 13 is fixedly connected to the right side of the fixing plate 11, and the other end of the second spring 13 is fixedly connected to the left side of the movable plate 12.

[0022] Specifically, on the surface of the recessed parts at one ends of the movable plate 12 and the fixing plate 11, there are several anti-slip protrusions.

[0023] In this implementation scheme, when the connection device is used, by taking out the first pipeline 1 and the second pipeline 2, then snap-fitting the clamping block 6 inside the slot 5 and the second fixing ring 4 inside the first fixing ring 3, the two HVAC pipelines can be connected. When disassembly is required, by taking out the clamping block 6 from the slot 5, the two pipelines can be separated. The operation during connection is simple, and it is convenient for disassembly and installation.

[0024] By pressing the clamping block 6, the first spring 8 expands and contracts, enters from the slot 5 into the groove 7 inside, separating the clamping block 6 from the slot 5, and the second pipeline 2 and the first pipeline 1 can be separated, which brings convenience to the pipeline separation work. By setting the sealing ring 9, the sealing effect during pipeline connection is improved. By sleeving the movable sleeve 10 on the outer side of the first pipeline 1 and then snap-fitting other small pipelines between the movable plate 12 and the fixing plate 11, the set second spring 13 can clamp pipelines of different specifications tightly, improving its adaptability, and thus bringing convenience to the clamping work of small pipelines.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A HVAC pipe connection device, comprising a first pipe (1) and a second pipe (2), characterized in that: A first fixing ring (3) is provided on the outside of one end of the first pipe (1), and a second fixing ring (4) is provided on the outside of one end of the second pipe (2). The second fixing ring (4) is clamped inside the first fixing ring (3). A clamping groove (5) is provided on the top and bottom of the first fixing ring (3). The clamping groove (5) extends into the inside of the first fixing ring (3). A clamping block (6) is provided on the top and bottom of the second fixing ring (4). The clamping block (6) is adapted to the clamping groove (5). The clamping block (6) is clamped inside the clamping groove (5). A movable sleeve (10) is provided on the outside of the first pipe (1). The movable sleeve (10) is clamped on the outside of the first pipe (1). A plurality of fixing plates (11) are provided on the outside of the movable sleeve (10). A movable plate (12) is provided on one end of the fixing plate (11). The movable plate (12) is movably connected to the outside of the movable sleeve (10). One end of the movable plate (12) is recessed inward.

2. A HVAC pipe connection device according to claim 1, characterized in that: A groove (7) is provided at the top and bottom of the second fixing ring (4), a first spring (8) is provided inside the groove (7), one end of the first spring (8) is fixedly connected inside the groove (7), and the other end of the first spring (8) is fixedly connected to one side of the clamping block (6).

3. A HVAC pipe connection device according to claim 1, characterized in that: A sealing ring (9) is provided on both the left and right sides of the clamping block (6), and the sealing ring (9) is fixedly connected to the outside of the first fixing ring (3).

4. A HVAC pipe connection device according to claim 1, characterized in that: A second spring (13) is fixedly connected to one end of the fixed plate (11), one end of the second spring (13) is fixedly connected to the right side of the fixed plate (11), and the other end of the second spring (13) is fixedly connected to the left side of the movable plate (12).

5. A HVAC pipe connection device according to claim 1, characterized in that: The surfaces of the recessed portions at one end of the movable plate (12) and the fixed plate (11) are both provided with anti-slip protrusions, and the number of the anti-slip protrusions is a plurality.

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