Multi-stage sealed heating ventilation air conditioner pipeline butt joint assembly
By using multi-stage sealed HVAC duct connection components, such as snap-fit parts, fasteners, and anti-detachment parts, the complex problems of traditional HVAC duct connections are solved, achieving fast, secure, and sealed duct connections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional HVAC duct connections are complex, prone to errors leading to dismantling and reinstallation, and require tools during installation, wasting time.
The HVAC duct connection assembly employs multi-stage sealing, including connection components, limiting components, and sealing rings. Through the combined use of snap-fit components, fixing components, sealing gaskets, and anti-detachment components, it achieves a quick and secure connection of the ducts.
It simplifies the pipe connection process, reduces installation errors, improves connection strength and sealing, and reduces installation complexity and time waste.
Smart Images

Figure CN224017923U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe connection technology, and in particular to a multi-stage sealed HVAC pipe connection assembly. Background Technology
[0002] Heating, ventilation, and air conditioning (HVAC) are air conditioning units that provide heating, ventilation, and air conditioning functions. Since the main functions of HVAC include heating, ventilation, and air conditioning, and ventilation and air conditioning are interconnected, the goal is to provide comfortable temperatures while maintaining reasonable installation, operation, and maintenance costs. The term HVAC is a combination of these three functions. Traditional HVAC systems are large, have many components, and complex pipe connections. Therefore, if a connection is incorrect after using screws and nuts, it needs to be disassembled and reinstalled, resulting in wasted time. Furthermore, the installation process requires specific tools, and pipe connections are relatively cumbersome. Utility Model Content
[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0004] In view of the problems existing in the above and / or existing multi-stage sealed HVAC duct connection assemblies, this utility model is proposed.
[0005] Therefore, the problem that this utility model aims to solve is that existing HVAC systems are large in size, have many components, and have complex pipe connections. If the connection is incorrect after using screws and nuts, it needs to be disassembled and reinstalled, resulting in wasted time. Furthermore, the installation process requires the use of appropriate tools, making pipe connections quite troublesome.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multi-stage sealed HVAC pipe connection assembly, comprising a connection component including a first pipe, a second pipe, an installation component, and a sealing ring, wherein the second pipe is disposed outside the first pipe, the installation component is disposed between the first pipe and the second pipe, and the sealing ring is disposed inside the installation component; and a limiting component, wherein the limiting component is disposed outside the installation component and includes a snap-fit component, a fixing component, a sealing gasket, and an anti-detachment component, wherein the snap-fit component is disposed outside the installation component, the fixing component is disposed outside the snap-fit component, the sealing gasket is disposed inside the fixing component, and the anti-detachment component is disposed outside the installation component.
[0007] As a preferred embodiment of the multi-stage sealed HVAC duct connection assembly of this utility model, a connector is provided on the outer side of both the first and second ducts.
[0008] As a preferred embodiment of the multi-stage sealing HVAC pipe connection assembly of this utility model, the mounting component includes a first clamp and a second clamp, wherein the first clamp is disposed on the outside of the first pipe and the second clamp is disposed on the outside of the second pipe.
[0009] In a preferred embodiment of the multi-stage sealing HVAC pipe connection assembly of this utility model, the sealing ring is disposed inside the first ferrule.
[0010] As a preferred embodiment of the multi-stage sealing HVAC pipe connection assembly of this utility model, the snap-fit component includes a fixing block, a slot, and a snap block. The fixing block is disposed on the outside of the first sleeve, the slot is disposed inside the fixing block, and the snap block is disposed on the outside of the second sleeve.
[0011] As a preferred embodiment of the multi-stage sealing HVAC duct connection assembly of this utility model, the fixing component includes a flap, a retaining cover, and an internal thread. The flap is disposed on the outside of the fixing block, the retaining cover is disposed on the outside of the flap, and the internal thread is disposed on the inner wall of the retaining cover.
[0012] In a preferred embodiment of the multi-stage sealing HVAC duct connection assembly of this utility model, the sealing gasket is disposed inside the cover.
[0013] As a preferred embodiment of the multi-stage sealing HVAC pipe connection assembly of this utility model, the anti-detachment component includes teeth, a mounting plate, a support plate, a screw, and locking teeth. The teeth are disposed on the outside of the second sleeve, the mounting plate is disposed on the outside of the first sleeve, the support plate is disposed on the outside of the mounting plate, the screw is disposed inside the support plate, and the locking teeth are disposed on the outside of the screw.
[0014] In a preferred embodiment of the multi-stage sealed HVAC duct connection assembly of this utility model, a knob is provided on the outer side of the screw.
[0015] In a preferred embodiment of the multi-stage sealed HVAC duct connection assembly of this utility model, the retaining cover is disposed on the outside of the second duct.
[0016] The beneficial effects of this utility model are as follows: the first and second ferrules are spliced together and then rotated relative to each other, so that the ferrule is engaged in the slot on the fixed block, thereby connecting the first and second ferrules together. After the installation parts are connected, the flip plate is flipped down onto the first ferrule. The outer side of the flip plate is provided with external threads. Then, the ferrule is rotated to connect its internal threads to the external threads of the flip plate, thereby fixing the ferrule on the flip plate and reinforcing the first and second ferrules. By rotating the screw, the ferrule teeth are driven to move down and engage with the outer side of the teeth, thereby limiting the second ferrule and improving the connection strength between the first and second ferrules, thereby strengthening the connection between the first and second pipes. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0018] Figure 1 This is an overall structural diagram of a multi-stage sealed HVAC duct connection assembly.
[0019] Figure 2 This is a structural diagram of the first clamping sleeve for a multi-stage sealed HVAC duct connection assembly.
[0020] Figure 3 This is a structural diagram of the second ferrule for a multi-stage sealed HVAC duct connection assembly.
[0021] Figure 4 This is a structural diagram of a clamping cover for a multi-stage sealed HVAC duct connection assembly.
[0022] Figure 5 This is a structural diagram of an anti-detachment component for a multi-stage sealed HVAC duct connection assembly.
[0023] Figure 6 The diagram shows the structure of the first and second pipes in a multi-stage sealed HVAC duct connection assembly.
[0024] The following are the labeling elements in the diagram: 100, connecting component; 101, first pipe; 102, second pipe; 103, mounting component; 103a, first ferrule; 103b, second ferrule; 104, sealing ring; 200, limiting component; 201, snap-fit component; 201a, fixing block; 201b, slot; 201c, snap-fit block; 202, fixing component; 202a, flap; 202b, clip cover; 202c, internal thread; 203, sealing gasket; 204, anti-detachment component; 204a, teeth; 204b, mounting plate; 204c, support plate; 204d, screw; 204e, snap-fit teeth. Detailed Implementation
[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0028] Example 1
[0029] Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a multi-stage sealed HVAC pipe connection assembly. The multi-stage sealed HVAC pipe connection assembly includes a connecting component 100 and a limiting component 200. The connecting component 100 is used to connect two pipe sections together, and the limiting component 200 is used to limit and fix the connecting component 100, thereby improving the connection strength between the pipes.
[0030] The connecting assembly 100 includes a first pipe 101, a second pipe 102, a mounting component 103, and a sealing ring 104. The second pipe 102 is disposed outside the first pipe 101, the mounting component 103 is disposed between the first pipe 101 and the second pipe 102, and the sealing ring 104 is disposed inside the mounting component 103.
[0031] The first pipe 101 and the second pipe 102 are connected together using the mounting component 103, and the sealing ring 104 is used to improve the sealing between the mounting component 103 and the pipe.
[0032] The limiting component 200 is disposed on the outside of the mounting component 103 and includes a snap-fit component 201, a fixing component 202, a sealing gasket 203, and an anti-detachment component 204. The snap-fit component 201 is disposed on the outside of the mounting component 103, the fixing component 202 is disposed on the outside of the snap-fit component 201, the sealing gasket 203 is disposed inside the fixing component 202, and the anti-detachment component 204 is disposed on the outside of the mounting component 103.
[0033] The mounting parts 103 are snapped together using the snap-fit component 201, thereby connecting the first pipe 101 and the second pipe 102 together. The fastener 202 is used to improve the firmness of the mounting parts 103. The sealing gasket 203 is used to improve the sealing between the fastener 202 and the pipe. The anti-detachment component 204 is used to prevent the first pipe 101 and the second pipe 102 from rotating and causing the mounting parts 103 to loosen.
[0034] Example 2
[0035] Reference Figure 2 and Figure 3 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0036] Specifically, connectors are provided on the outer sides of both the first pipe 101 and the second pipe 102.
[0037] The mounting component 103 is limited by the connectors on the first pipe 101 and the second pipe 102.
[0038] Specifically, the mounting component 103 includes a first retainer 103a and a second retainer 103b. The first retainer 103a is disposed on the outside of the first pipe 101, and the second retainer 103b is disposed on the outside of the second pipe 102.
[0039] The first ferrule 103a is fitted onto the first pipe 101, and the second ferrule 103b is fitted onto the outside of the second pipe 102.
[0040] Specifically, the sealing ring 104 is disposed inside the first ferrule 103a.
[0041] Both the first ferrule 103a and the second ferrule 103b are equipped with sealing rings 104 inside, which can improve the sealing performance of the connection between the ferrule and the pipe.
[0042] Example 3
[0043] Reference Figures 2-5 This is the third embodiment of the present invention, which is based on the first two embodiments.
[0044] Specifically, the snap-fit component 201 includes a fixing block 201a, a slot 201b, and a snap-fit block 201c. The fixing block 201a is located on the outside of the first snap-fit sleeve 103a, the slot 201b is located inside the fixing block 201a, and the snap-fit block 201c is located on the outside of the second snap-fit sleeve 103b.
[0045] Three fixing blocks 201a are symmetrically fixedly installed on the outside of the first retaining sleeve 103a. A slot 201b is formed inside the fixing block 201a. The number of locking blocks 201c is the same as that of the fixing blocks 201a, and they are symmetrically fixedly installed on the outside of the second retaining sleeve 103b. The first retaining sleeve 103a and the second retaining sleeve 103b are connected together and then rotated relative to each other, causing the locking blocks 201c to engage with the slots 201b on the fixing block 201a, thereby connecting the first retaining sleeve 103a and the second retaining sleeve 103b together.
[0046] Specifically, the fastener 202 includes a flap 202a, a retainer 202b, and an internal thread 202c. The flap 202a is located on the outside of the fastener 201a, the retainer 202b is located on the outside of the flap 202a, and the internal thread 202c is located on the inner wall of the retainer 202b.
[0047] The flap 202a is rotatably mounted on the fixing block 201a, and each flap 202a is provided with one. The retainer 202b is snapped onto the outside of the second pipe 102 and the second retainer 103b. After the mounting parts 103 are connected, the flap 202a is flipped down onto the first retainer 103a. The outer side of the flap 202a is provided with external threads. Then, the retainer 202b is rotated to connect its internal threads to the external threads of the flap 202a, thereby fixing the retainer 202b onto the flap 202a and reinforcing the first retainer 103a and the second retainer 103b.
[0048] Specifically, the sealing gasket 203 is disposed inside the cover 202b.
[0049] The sealing performance between the cover 202b and the second pipe 102 is improved by setting the sealing gasket 203.
[0050] The anti-detachment component 204 includes teeth 204a, mounting plate 204b, support plate 204c, screw 204d, and locking teeth 204e. Teeth 204a are located on the outside of the second sleeve 103b, mounting plate 204b is located on the outside of the first sleeve 103a, support plate 204c is located on the outside of the mounting plate 204b, screw 204d is located inside the support plate 204c, and locking teeth 204e are located on the outside of the screw 204d.
[0051] The tooth 204a is fixedly installed on the outside of the second ferrule 103b, the mounting plate 204b is fixedly installed on the outside of the first ferrule 103a, the support plate 204c is fixedly installed on the outside of the mounting plate 204b, the screw 204d is threadedly installed inside the support plate 204c, and the locking tooth 204e is rotatably installed on the bottom of the screw 204d. By rotating the screw 204d, the locking tooth 204e moves downward and engages with the outside of the tooth 204a, thereby limiting the second ferrule 103b and improving the connection strength between the first ferrule 103a and the second ferrule 103b.
[0052] Specifically, a knob is provided on the outside of the screw 204d.
[0053] The screw 204d is made easy to turn by the user by setting a knob.
[0054] Specifically, the cover 202b is located on the outside of the second pipe 102.
[0055] The retainer 202b can move outside the second pipe 102 and the second retainer 103b.
[0056] In use, the first pipe 101 and the second pipe 102 are connected together, the first clamping sleeve 103a and the second clamping sleeve 103b are moved together and then rotated relative to each other, so that the clamping block 201c is engaged in the clamping groove 201b on the fixing block 201a, thereby connecting the first clamping sleeve 103a and the second clamping sleeve 103b together. After the mounting parts 103 are connected, the flip plate 202a is flipped down onto the first clamping sleeve 103a. The outer side of the flip plate 202a is provided with external threads. Then, the clamping cover 20 is rotated. 2b connects its internal thread to the external thread of the flap 202a, thereby fixing the retainer 202b onto the flap 202a and reinforcing the first retainer 103a and the second retainer 103b. By rotating the screw 204d, the retaining tooth 204e moves down and engages with the outside of the tooth 204a, thereby limiting the second retainer 103b and improving the connection strength between the first retainer 103a and the second retainer 103b, thereby strengthening the connection between the first pipe 101 and the second pipe 102.
[0057] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A multi-stage sealed HVAC duct connection assembly, characterized in that: include, A connecting assembly (100) includes a first pipe (101), a second pipe (102), a mounting member (103), and a sealing ring (104), wherein the second pipe (102) is disposed outside the first pipe (101), the mounting member (103) is disposed between the first pipe (101) and the second pipe (102), and the sealing ring (104) is disposed inside the mounting member (103); A limiting component (200) is disposed on the outside of the mounting member (103), including a snap-fit component (201), a fixing component (202), a sealing gasket (203), and an anti-detachment component (204). The snap-fit component (201) is disposed on the outside of the mounting member (103), the fixing component (202) is disposed on the outside of the snap-fit component (201), the sealing gasket (203) is disposed inside the fixing component (202), and the anti-detachment component (204) is disposed on the outside of the mounting member (103).
2. The multi-stage sealed HVAC duct connection assembly as described in claim 1, characterized in that: Both the first pipe (101) and the second pipe (102) have connectors on their outer sides.
3. The multi-stage sealed HVAC duct connection assembly as described in claim 2, characterized in that: The mounting component (103) includes a first retainer (103a) and a second retainer (103b), wherein the first retainer (103a) is disposed on the outside of the first pipe (101) and the second retainer (103b) is disposed on the outside of the second pipe (102).
4. The multi-stage sealed HVAC duct connection assembly as described in claim 3, characterized in that: The sealing ring (104) is disposed inside the first ferrule (103a).
5. The multi-stage sealed HVAC duct connection assembly as described in claim 3, characterized in that: The snap-fit component (201) includes a fixing block (201a), a slot (201b), and a snap-fit block (201c). The fixing block (201a) is disposed on the outside of the first sleeve (103a), the slot (201b) is disposed inside the fixing block (201a), and the snap-fit block (201c) is disposed on the outside of the second sleeve (103b).
6. The multi-stage sealed HVAC duct connection assembly as described in claim 5, characterized in that: The fixing component (202) includes a flap (202a), a retainer (202b), and an internal thread (202c). The flap (202a) is disposed on the outside of the fixing block (201a), the retainer (202b) is disposed on the outside of the flap (202a), and the internal thread (202c) is disposed on the inner wall of the retainer (202b).
7. The multi-stage sealed HVAC duct connection assembly as described in claim 6, characterized in that: The sealing gasket (203) is disposed inside the cover (202b).
8. The multi-stage sealed HVAC duct connection assembly as described in claim 7, characterized in that: The anti-detachment component (204) includes teeth (204a), a mounting plate (204b), a support plate (204c), a screw (204d), and a locking tooth (204e). The teeth (204a) are disposed on the outside of the second sleeve (103b), the mounting plate (204b) is disposed on the outside of the first sleeve (103a), the support plate (204c) is disposed on the outside of the mounting plate (204b), the screw (204d) is disposed inside the support plate (204c), and the locking tooth (204e) is disposed on the outside of the screw (204d).
9. The multi-stage sealed HVAC duct connection assembly as described in claim 8, characterized in that: A knob is provided on the outside of the screw (204d).
10. The multi-stage sealed HVAC duct connection assembly as described in claim 6, characterized in that: The cover (202b) is disposed on the outside of the second pipe (102).