A military air conditioning flexible duct connection device

By using magnetic rings and corrugated pipes to cover and snap-fit ​​connection components, the problem of easy damage to traditional military air conditioning flexible duct connection devices is solved, achieving dustproof, waterproof and airtight performance, ensuring the stable operation of the air conditioning system in complex environments.

CN224433762UActive Publication Date: 2026-06-30SHAANXI CHANG LING SPECIAL EQUIP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI CHANG LING SPECIAL EQUIP
Filing Date
2025-06-26
Publication Date
2026-06-30

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Abstract

This utility model discloses a military air conditioning flexible duct connection device, relating to the field of military air conditioning design and manufacturing technology. The utility model includes an air outlet fixing plate with an installation groove on one side wall, into which an air outlet pipe is fixedly installed; a snap-fit ​​connection assembly; and a flexible hose connector, one end of which is fixedly connected to a flexible hose body and connected to the air outlet pipe via the snap-fit ​​connection assembly. A first positioning plate is fixedly connected to the outer wall of the air outlet pipe. After the flexible hose connector and air outlet pipe are assembled and connected, the operator can pull and unfold the corrugated pipe, connecting the iron ring and the magnetic ring. The corrugated pipe further covers and wraps the connection between the flexible hose connector and the air outlet pipe, as well as the snap-fit ​​connection assembly, thus providing dust and water protection and preventing damage to the snap-fit ​​connection assembly.
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Description

Technical Field

[0001] This utility model relates to the field of military air conditioning design and manufacturing technology, and in particular to a flexible air duct connection device for military air conditioning. Background Technology

[0002] Air conditioning, or air conditioner, refers to the process of artificially adjusting and controlling parameters such as temperature, humidity, cleanliness, and air velocity within a structure. There are many types of air conditioners, the most common including wall-mounted, floor-standing, window-mounted, and ceiling-mounted units. Military or special vehicles are key combat equipment in modern ground warfare, and the primary purpose of military air conditioning is to improve the temperature, humidity, and other climatic conditions inside the vehicle. When installing military air conditioners, the ductwork and flexible hoses, along with their connectors, need to be fixed to the air vent mounting plate. The ductwork and hoses are integrally formed, and traditionally, bolts are used to secure the hose connectors to the mounting plate. However, since air conditioners need to be installed in locations not easily accessible to people, bolt fixing is inconvenient for installers.

[0003] A search revealed a Chinese patent, CN 209054166 U, which describes a military air conditioning duct connection device, belonging to the field of military air conditioning design and manufacturing technology. The key technical features include a rubber latch rotatably connected to an air vent mounting plate and a clip fixed to the hose connector; the rubber latch can rotate to engage with the clip. However, this device has drawbacks in practical use. The clip connection mechanism is exposed to the outside environment, making it susceptible to rainwater erosion and dust, which can damage the connection mechanism and pose a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a military air conditioning flexible duct connection device to solve the problems mentioned in the background art.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A military air conditioning flexible duct connection device, comprising:

[0007] An air vent fixing plate has an installation groove on one side wall, and an air vent pipe is fixedly installed inside the installation groove.

[0008] Snap-fit ​​connection components;

[0009] A hose connector, one end of which is fixedly connected to a hose body, and the hose connector is connected to an air outlet pipe via a snap-fit ​​connection assembly;

[0010] The outer wall of the air outlet pipe is fixedly connected to a first positioning plate, a corrugated pipe is fixedly connected to one side wall of the first positioning plate, an iron plate ring is fixedly connected to one end of the corrugated pipe, a second positioning plate is fixedly connected to the outer wall of the hose connector, a magnetic ring is fixedly connected to one side wall of the second positioning plate, and the iron plate ring and the magnetic ring are connected by magnetic attraction.

[0011] Preferably, a handle is fixedly connected to the outer wall above the iron ring.

[0012] Preferably, a retaining ring is fixedly connected to the inner wall of the air outlet pipe, a first rubber sealing ring is fixedly connected to one side wall of the retaining ring, and a second rubber sealing ring is fixedly connected to the other end of the hose connector, with one side wall of the first rubber sealing ring and one side wall of the second rubber sealing ring in extrusion contact.

[0013] Preferably, the snap-fit ​​connection assembly includes symmetrically arranged slot blocks fixedly disposed on the outer wall of the air outlet pipe. A first spring and a second spring are fixedly connected to one side wall inside the slot block. An inclined plate is fixedly connected to one end of the first spring and the second spring. The length of the first spring is greater than the length of the second spring. A limit groove is formed on one side wall of the slot block.

[0014] Preferably, the snap-fit ​​connection assembly further includes connecting rods symmetrically and fixedly disposed on the outer wall of the end of the hose connector. One end of the connecting rod is fixedly connected to a plug, and a snap-fit ​​connector is fixedly connected to one side wall of the plug. One end of the plug is inserted into the slot block, and the snap-fit ​​connector engages with the limiting groove.

[0015] Preferably, the card connector has a trapezoidal structure design.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] After the flexible hose connector and the air vent pipe are assembled and connected, the workers can pull and unfold the corrugated pipe, which connects the iron ring and the magnetic ring. The corrugated pipe further covers and wraps the connection between the flexible hose connector and the air vent pipe, as well as the snap-fit ​​connection components, thereby providing dust and water protection and preventing damage to the snap-fit ​​connection components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall external structure of a military air conditioning flexible duct connection device.

[0019] Figure 2 This is a partial structural diagram of a military air conditioning flexible duct connection device.

[0020] Figure 3 This is a partial structural diagram of a military air conditioning flexible duct connection device.

[0021] Figure 4 This is a disassembled structural diagram of the snap-fit ​​connection component of a military air conditioning flexible duct connection device.

[0022] In the diagram: 1. Air vent fixing plate; 2. Air vent pipe; 3. Flexible hose connector; 4. Flexible hose body; 5. First positioning plate; 6. Corrugated pipe; 7. Iron plate ring; 8. Second positioning plate; 9. Magnetic ring; 10. Handle; 11. Retaining ring; 12. First rubber sealing ring; 13. Second rubber sealing ring; 14. Slot block; 15. First spring; 16. Second spring; 17. Limiting groove; 18. Connecting rod; 19. Plug connector; 20. Snap connector; 21. Inclined plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figures 1-4 As shown, this utility model is a military air conditioning flexible duct connection device, including...

[0026] Air outlet fixing plate 1, with an installation groove on one side wall of the air outlet fixing plate 1, and an air outlet pipe 2 is fixedly installed inside the installation groove;

[0027] Snap-fit ​​connection components;

[0028] Hose connector 3, one end of which is fixedly connected to hose body 4, and the hose connector 3 is connected to air outlet pipe 2 through snap-fit ​​connection assembly;

[0029] The outer wall of the air outlet pipe 2 is fixedly connected to a first positioning plate 5, a corrugated pipe 6 is fixedly connected to one side wall of the first positioning plate 5, an iron ring 7 is fixedly connected to one end of the corrugated pipe 6, a second positioning plate 8 is fixedly connected to the outer wall of the flexible hose connector 3, a magnetic ring 9 is fixedly connected to one side wall of the second positioning plate 8, and the iron ring 7 and the magnetic ring 9 are connected by magnetic attraction.

[0030] As can be seen from the above, the military air conditioning flexible duct connection device realizes the quick connection and fixation of the flexible duct connector 3 and the air outlet pipe 2 through the snap-fit ​​connection component, and the corrugated pipe 6 facilitates the dustproof and waterproof protection of the assembled structural components, making the structural design user-friendly.

[0031] refer to Figure 1and Figure 3 As shown, a handle 10 is fixedly connected to the outer wall above the iron sheet ring 7.

[0032] As can be seen from the above, the design of the handle 10 facilitates manual operation of the iron plate ring 7 by the operator, further improving the convenience of installation and disassembly. Through the handle 10, the operator can easily attract or separate the iron plate ring 7 from the magnetic ring 9, ensuring the stability and reliability of the connection.

[0033] Specifically, after the hose connector 3 and the air outlet pipe 2 are assembled and connected, the staff can pull and unfold the corrugated pipe 6, so that the iron ring 7 and the magnetic ring 9 are connected. The corrugated pipe 6 further covers and wraps the connection between the hose connector 3 and the air outlet pipe 2, as well as the buckle connection component, thereby playing a role in dust and water protection and avoiding damage to the buckle connection component.

[0034] refer to Figure 3 As shown, a retaining ring 11 is fixedly connected to the inner wall of the air outlet pipe 2, a first rubber sealing ring 12 is fixedly connected to one side wall of the retaining ring 11, and a second rubber sealing ring 13 is fixedly connected to the other end of the hose connector 3. One side wall of the first rubber sealing ring 12 and one side wall of the second rubber sealing ring 13 are in contact by compression.

[0035] As can be seen from the above, the design of the retaining ring 11, the first rubber sealing ring 12, and the second rubber sealing ring 13 ensures the sealing of the connection and prevents air leakage. This design not only improves the efficiency of the air conditioning system but also reduces energy waste and ensures the stable operation of military air conditioning in various environments.

[0036] refer to Figure 2 and Figure 4 As shown, the snap-fit ​​connection assembly includes slot blocks 14 symmetrically and fixedly disposed on the outer wall of the air outlet pipe 2. A first spring 15 and a second spring 16 are fixedly connected to one side wall inside the slot block 14. An inclined plate 21 is fixedly connected to one end of the first spring 15 and the second spring 16. The length of the first spring 15 is greater than the length of the second spring 16. A limit groove 17 is formed on one side wall of the slot block 14.

[0037] The snap-fit ​​connection assembly also includes connecting rods 18 symmetrically and fixedly disposed on the outer wall of the end of the hose connector 3. One end of the connecting rod 18 is fixedly connected to a plug 19, and a snap-fit ​​connector 20 is fixedly connected to one side wall of the plug 19. One end of the plug 19 is inserted into the slot block 14, and the snap-fit ​​connector 20 is engaged with the limiting groove 17.

[0038] The snap-fit ​​connector 20 has a trapezoidal structure design.

[0039] As can be seen from the above, the snap-fit ​​connection assembly, through the design of the slot block 14, the plug 19, and the snap-fit ​​connector 20, enables the quick snap-fit ​​between the hose connector 3 and the air outlet pipe 2. The placement of the first spring 15 and the second spring 16 ensures the stable snap-fit ​​of the snap-fit ​​connector 20 within the limiting groove 17, improving the reliability and stability of the connection. The trapezoidal structure of the snap-fit ​​connector 20 further enhances the firmness of the snap-fit, preventing loosening due to vibration or external force, and ensuring the stable operation of the military air conditioner in complex environments.

[0040] All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and will not be described in detail here. The contents not described in detail in this specification are all prior art known to those skilled in the art.

[0041] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0043] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0046] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A military-grade air conditioning flexible duct connection device, characterized in that: include Air outlet fixing plate (1), with an installation groove on one side wall of the air outlet fixing plate (1), and an air outlet pipe (2) is fixedly installed inside the installation groove. Snap-fit ​​connection components; A hose connector (3) is fixedly connected to a hose body (4) at one end, and the hose connector (3) is connected to the air outlet pipe (2) through a snap-fit ​​connection assembly. The outer wall of the air outlet pipe (2) is fixedly connected to a first positioning plate (5), a corrugated pipe (6) is fixedly connected to one side wall of the first positioning plate (5), an iron plate ring (7) is fixedly connected to one end of the corrugated pipe (6), a second positioning plate (8) is fixedly connected to the outer wall of the hose connector (3), a magnetic ring (9) is fixedly connected to one side wall of the second positioning plate (8), and the iron plate ring (7) and the magnetic ring (9) are connected by magnetic adsorption.

2. The military air conditioning flexible duct connection device according to claim 1, characterized in that: A handle (10) is fixedly connected to the outer wall above the iron ring (7).

3. The military air conditioning flexible duct connection device according to claim 1, characterized in that: A retaining ring (11) is fixedly connected to the inner wall of the air outlet pipe (2). A first rubber sealing ring (12) is fixedly connected to one side wall of the retaining ring (11). A second rubber sealing ring (13) is fixedly connected to the other end of the hose connector (3). One side wall of the first rubber sealing ring (12) and one side wall of the second rubber sealing ring (13) are in contact by compression.

4. The military air conditioning flexible duct connection device according to claim 1, characterized in that: The snap-fit ​​connection assembly includes a slot block (14) symmetrically and fixedly disposed on the outer wall of the air outlet pipe (2). A first spring (15) and a second spring (16) are fixedly connected to one side wall inside the slot block (14). An inclined plate (21) is fixedly connected to one end of the first spring (15) and the second spring (16). The length of the first spring (15) is greater than the length of the second spring (16). A limit groove (17) is opened on one side wall of the slot block (14).

5. A military air conditioning flexible duct connection device according to claim 4, characterized in that: The snap-fit ​​connection assembly also includes a connecting rod (18) symmetrically and fixedly disposed on the outer wall of the end of the hose connector (3). One end of the connecting rod (18) is fixedly connected to a plug (19), and a snap-fit ​​connector (20) is fixedly connected to one side wall of the plug (19). One end of the plug (19) is inserted into the slot block (14), and the snap-fit ​​connector (20) is engaged with the limiting groove (17).

6. A military air conditioning flexible duct connection device according to claim 5, characterized in that: The snap-fit ​​connector (20) has a trapezoidal structure design.