Heating and ventilation pipeline connecting device

Abstract

The utility model discloses a heating and ventilation pipeline connection device, which relates to the technical field of pipeline connection and comprises a carrying cylinder, an adjusting pipe is inserted into the top of the carrying cylinder in a sliding manner, a piston is fixedly sleeved outside the bottom end of the adjusting pipe, the piston is positioned inside the carrying cylinder and is in sliding fit with the inner wall of the carrying cylinder, and two first sealing elements are sleeved outside the piston. The outer portion of the adjusting pipe is fixedly sleeved with a carrying plate, the carrying plate is located above the carrying cylinder, and two studs are fixed to the bottom of the carrying plate. The combined length of the carrying cylinder and the adjusting pipe can be adjusted by pulling the adjusting pipe, so that the two connecting assemblies at the bottom of the carrying cylinder and the top of the adjusting pipe are connected with the two warm pipelines to be connected respectively, the two locking nuts on the stud are screwed by a wrench, and the distance between the carrying cylinder and the adjusting pipe is locked by the two locking nuts, so that the distance between the carrying cylinder and the adjusting pipe is adjusted. And the connecting operation of two heating and ventilation pipelines with different distances can be met, waste of the heating and ventilation pipelines is avoided as much as possible, and the practicability and the application range of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and in particular to a heating, ventilation and air conditioning (HVAC) pipe connection device. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) is an integral part of building construction. It includes three aspects: heating, ventilation, and air conditioning. HVAC pipes are an indispensable and crucial component for the normal operation of HVAC systems. These pipes are generally made of metal or plastic and are commonly used in heating, ventilation, and air conditioning systems, playing a vital role in regulating indoor temperature and air quality. During HVAC construction, pipe connection devices are often used to connect two sections of HVAC pipe together.

[0003] Existing HVAC duct connection devices have relatively fixed lengths, so it is necessary to ensure that the two HVAC ducts to be connected have an appropriate length reserved in advance. By cutting the two HVAC ducts to fit the installation of the connection device, it not only affects its practicality and cannot meet the connection of two HVAC ducts with large gaps, but also causes waste after cutting due to the long reserved HVAC ducts, which is not conducive to the laying and use of HVAC ducts. Utility Model Content

[0004] The purpose of this application is to provide a heating, ventilation, and air conditioning (HVAC) pipe connection device to solve the problem mentioned in the background art. When using existing HVAC pipe connection devices, because their length dimensions are relatively fixed, it is necessary to ensure that the two HVAC pipes to be connected have an appropriate length reserved in advance. By cutting the two HVAC pipes to fit the installation of the HVAC pipe connection device, not only is it affected in terms of practicality and unable to meet the connection of two HVAC pipes with large spacing, but it also causes waste after cutting due to the long reserved HVAC pipes, which is not conducive to the laying and use of HVAC pipes.

[0005] To achieve the above objectives, this application provides the following technical solution: a heating, ventilation, and air conditioning (HVAC) pipe connection device, comprising a carrier cylinder, an adjusting pipe slidably inserted into the top of the carrier cylinder, a piston fixedly sleeved on the bottom of the adjusting pipe, the piston being located inside the carrier cylinder and slidingly engaged with the inner wall of the carrier cylinder, two first sealing elements sleeved on the outside of the piston, a carrier plate fixedly sleeved on the outside of the adjusting pipe, the carrier plate being located above the carrier cylinder, and two studs fixed at the bottom of the carrier plate, two fixing plates fixed on the outside of the carrier cylinder, the fixing plates being sleeved on the outside of the studs, and through holes provided on the fixing plates for the studs to pass through, two locking nuts sleeved on the studs, and the studs and locking nuts being threadedly connected, the two locking nuts on the studs being respectively located on the upper and lower sides of the fixing plates, connecting components being installed at the bottom of the carrier cylinder and the top of the adjusting pipe, and the carrier cylinder and the adjusting pipe being connected to two HVAC pipes through the two connecting components.

[0006] Furthermore, both fixing plates and both studs are symmetrically arranged about the carrier cylinder.

[0007] Furthermore, two second seals are installed at the junction of the carrier cylinder and the regulating pipe.

[0008] Furthermore, the connecting assembly includes a sleeve, and a silicone sleeve is installed inside the sleeve. In one of the connecting assemblies, both the sleeve and the silicone sleeve are fixedly fitted onto the outside of the adjusting tube, while in the other connecting assembly, both the sleeve and the silicone sleeve are fixedly fitted onto the outside of the carrier tube.

[0009] Furthermore, the sleeve is externally fixed with two sets of fixing rods, and each set of fixing rods has a clamp plate fixed to the other end. Four fastening bolts are installed on the two clamp plates, and the two clamp plates are fixed to the HVAC pipe by the four fastening bolts.

[0010] Furthermore, the outer diameter of the bottom of the carrier cylinder is equal to the outer diameter of the regulating pipe.

[0011] In summary, the technical effects and advantages of this utility model are as follows:

[0012] 1. In this utility model, the combined length of the carrier cylinder and the adjusting pipe can be adjusted by traction adjustment pipe, so that the two connecting components at the bottom of the carrier cylinder and the top of the adjusting pipe are respectively connected to the two heating pipes to be connected. By using a wrench to turn the two locking nuts on the stud, the two locking nuts lock the distance between the carrier cylinder and the adjusting pipe. In this way, the connection operation of two heating pipes with different distances can be met, the waste of heating pipes can be avoided as much as possible, and the practicality and applicability of this device can be improved.

[0013] 2. In this utility model, the silicone sleeve is used to enhance the tightness of the connection between the sleeve and the HVAC pipe. The two clamps can be firmly fixed to the HVAC pipe with the help of fastening bolts, which further enhances the stability of the connection between the device and the HVAC pipe. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a three-dimensional structural diagram of a heating, ventilation, and air conditioning (HVAC) pipe connection device according to an embodiment of this application;

[0016] Figure 2 This is a schematic diagram showing the connection between the HVAC pipe connection device and the two HVAC pipes in an embodiment of this application;

[0017] Figure 3 This is a diagram showing the positional relationship between the carrier cylinder, regulating pipe, carrier plate, and stud in the embodiments of this application;

[0018] Figure 4 This is a diagram showing the positional relationship between the carrier cylinder, regulating tube, piston, and first seal in an embodiment of this application.

[0019] Figure 5 This is a schematic diagram of the structure of the connection component in an embodiment of this application;

[0020] Figure 6 This is a diagram showing the connection relationship between the sleeve and the silicone sleeve in an embodiment of this application.

[0021] In the diagram: 1. Carrier cylinder; 2. Adjusting pipe; 3. Piston; 4. First seal; 5. Carrier plate; 6. Fixing plate; 7. Stud; 8. Locking nut; 9. Second seal; 10. Sleeve; 11. Silicone sleeve; 12. Fixing rod; 13. Clamping plate; 14. Fastening bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example: Reference Figure 1-6 The HVAC duct connection device shown includes a carrier cylinder 1, an adjusting pipe 2 slidably inserted into the top of the carrier cylinder 1, a piston 3 fixedly sleeved on the bottom of the adjusting pipe 2, the piston 3 being located inside the carrier cylinder 1 and slidingly engaging with the inner wall of the carrier cylinder 1, two first sealing elements 4 being sleeved on the outside of the piston 3, a carrier plate 5 being fixedly sleeved on the outside of the adjusting pipe 2, the carrier plate 5 being located above the carrier cylinder 1, and two studs 7 being fixed at the bottom of the carrier plate 5, and two fixing plates 6 being fixed on the outside of the carrier cylinder 1, the fixing plates 6 being sleeved on the outside of the studs 7. The fixing plate 6 has a through hole for the stud 7 to pass through. Two locking nuts 8 are fitted on the stud 7 and are threadedly connected to the stud 7 and the locking nuts 8. The two locking nuts 8 on the stud 7 are respectively set on the upper and lower sides of the fixing plate 6. The two fixing plates 6 and the two studs 7 are symmetrically arranged about the carrier cylinder 1, so that the carrier cylinder 1 and the adjusting pipe 2 are subjected to more balanced forces when locking their positions. The bottom of the carrier cylinder 1 and the top of the adjusting pipe 2 are both equipped with connecting components. The carrier cylinder 1 and the adjusting pipe 2 are connected to the two HVAC pipes through the two connecting components.

[0024] The traction regulating pipe 2 can adjust the combined length of the carrier cylinder 1 and the regulating pipe 2, so that the two connecting components at the bottom of the carrier cylinder 1 and the top of the regulating pipe 2 are respectively connected to the two heating pipes to be connected. By using a wrench to turn the two locking nuts 8 on the stud 7, the two locking nuts 8 lock the distance between the carrier cylinder 1 and the regulating pipe 2. In this way, the connection operation of two heating and ventilation pipes with different distances can be met.

[0025] Two second seals 9 are installed at the junction of the carrier cylinder 1 and the regulating pipe 2. The airtightness between the carrier cylinder 1 and the regulating pipe 2 can be improved by the first seal 4 on the piston 3 and the second seal 9 on the carrier cylinder 1, so as to prevent the fluid from overflowing between the carrier cylinder 1 and the regulating pipe 2.

[0026] The connecting components include a sleeve 10, with a silicone sleeve 11 installed inside the sleeve 10. In one connecting component, both the sleeve 10 and the silicone sleeve 11 are fixedly fitted onto the outside of the regulating pipe 2. In another connecting component, both the sleeve 10 and the silicone sleeve 11 are fixedly fitted onto the outside of the carrier cylinder 1. Two sets of fixing rods 12 are fixed to the outside of the sleeve 10. Each set of fixing rods 12 has a clamping plate 13 fixed to its other end. Four fastening bolts 14 are installed on the two clamping plates 13, and the two clamping plates 13 are fixed to the HVAC pipe by the four fastening bolts 14. The outer diameter of the bottom of the carrier cylinder 1 is equal to the outer diameter of the regulating pipe 2, so that the two can be adapted to the same model and size of HVAC pipe when connecting the sleeve 10 and the silicone sleeve 11.

[0027] The silicone sleeve 11 enhances the tightness of the connection between the sleeve 10 and the HVAC pipe. The two clamps 13 can be firmly fixed to the HVAC pipe with the help of the fastening bolts 14, further enhancing the stability of the connection between the device and the HVAC pipe.

[0028] Working principle of this utility model:

[0029] In use, place the device between two HVAC pipes. First, insert the silicone sleeve 11 on the carrier cylinder 1 into one of the HVAC pipes. At this time, the sleeve 10 on the carrier cylinder 1 is fitted onto the outside of the HVAC pipe. According to the distance between the two HVAC pipes to be connected, pull the adjusting tube 2 to extend outward from the carrier cylinder 1, so that the silicone sleeve 11 on the adjusting tube 2 is inserted into the other HVAC pipe, and the sleeve 10 on the adjusting tube 2 is fitted onto the outside of the HVAC pipe. Take out the wrench and tighten the locking nut 8 on the stud 7 between the carrier plate 5 and the fixing plate 6, so that the two locking nuts 8 cooperate with the two studs 7 and the two fixing plates 6 to help the two sleeves 10 and the two silicone sleeves 11 to be tightly connected to the two HVAC pipes respectively. After that, use the wrench to tighten the other locking nut 8 on the stud 7 to lock the position of the carrier cylinder 1 and the adjusting tube 2.

[0030] To ensure the stability of the connection between the two connecting components and the two HVAC pipes, the two clamps 13 of the connecting components, which are sleeved on the outside of the HVAC pipes, can be tightly fixed to the outside of the HVAC pipes by means of fastening bolts 14, further strengthening the stability of the connection between the device and the HVAC pipes, thus completing the connection work between the device and the two HVAC pipes.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heating and plumbing duct coupling device comprising a carrier tube (1), characterized in that: An adjusting tube (2) is slidably inserted into the top of the carrier cylinder (1). A piston (3) is fixedly sleeved on the bottom of the adjusting tube (2). The piston (3) is located inside the carrier cylinder (1) and slides against the inner wall of the carrier cylinder (1). Two first sealing elements (4) are sleeved on the outside of the piston (3). A carrier plate (5) is fixedly sleeved on the outside of the adjusting tube (2). The carrier plate (5) is located above the carrier cylinder (1), and two studs (7) are fixed at the bottom of the carrier plate (5). Two fixing plates are fixed on the outside of the carrier cylinder (1). (6) The fixing plate (6) is sleeved on the outside of the stud (7), and the fixing plate (6) has a through hole for the stud (7) to pass through. Two locking nuts (8) are sleeved on the stud (7), and the stud (7) and the locking nuts (8) are threaded together. The two locking nuts (8) on the stud (7) are respectively set on the upper and lower sides of the fixing plate (6). The bottom of the carrier cylinder (1) and the top of the regulating pipe (2) are both equipped with connecting components. The carrier cylinder (1) and the regulating pipe (2) are connected to the two HVAC pipes through the two connecting components.

2. A heating, ventilation, and air conditioning duct interface device according to claim 1, wherein: Both fixing plates (6) and two studs (7) are symmetrically arranged about the carrier cylinder (1).

3. A heating, ventilation, and air conditioning duct interface device as defined in claim 1, wherein: Two second seals (9) are installed at the junction of the carrier tube (1) and the regulating pipe (2).

4. A heating, ventilation, and air conditioning duct interface device as defined in claim 1, wherein: The connecting assembly includes a sleeve (10) with a silicone sleeve (11) installed inside the sleeve (10). In one connecting assembly, the sleeve (10) and the silicone sleeve (11) are fixedly fitted onto the outside of the regulating tube (2), and in another connecting assembly, the sleeve (10) and the silicone sleeve (11) are fixedly fitted onto the outside of the carrier tube (1).

5. A heating, ventilation, and air conditioning duct interface device as defined in claim 4, wherein: The sleeve (10) is fixed with two sets of fixing rods (12), and each set of fixing rods (12) is fixed with a clamp (13) at the other end. Four fastening bolts (14) are installed on the two clamps (13), and the two clamps (13) are fixed to the heating and ventilation pipe by the four fastening bolts (14).

6. A heating, ventilation, and air conditioning duct interface device as defined in claim 4, wherein: The outer diameter of the bottom of the carrier cylinder (1) is equal to the outer diameter of the regulating pipe (2).

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