A heating and ventilating duct which is easy to install

Abstract

The utility model discloses a kind of heating ventilation ducts of being convenient for installation, including first pipe body, second pipe body and extrusion mechanism, first pipe body is opened first annular groove, second pipe body is opened with the third annular groove matched with first annular groove, extrusion mechanism is fixedly connected on first pipe body, extrusion mechanism includes annular mounting table, multiple grooves are opened in the end of annular mounting table close to first pipe body, arc pressing plate is slidably connected in groove, annular mounting table is installed with the driving mechanism for driving arc pressing plate, sealing ring is installed on first annular groove and guide groove, arc pressing plate is pushed by driving mechanism to extrude sealing ring, first pipe body and second pipe body between fixedly connected with quick release mechanism.The utility model has the beneficial effect that when needing to replace sealing ring, without large-scale disassembly pipeline system, maintenance personnel can quickly separate pipe body and replace sealing ring, greatly simplify maintenance process, save time and cost.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, specifically to a heating and ventilation pipeline that is easy to install. Background Technology

[0002] In heating and ventilation systems, sealing rings are often used in spliced ​​ducts to achieve airflow and heat transfer. As a key sealing element at the duct joints, the sealing ring directly determines the airtightness and energy efficiency stability of the system. However, during long-term use, the sealing ring is affected by fluctuations in ambient temperature and humidity, airflow impact, and material aging, which can gradually lead to wear, deformation, and even failure. This phenomenon is particularly noticeable in complex application scenarios such as industrial workshops and large public buildings. When the sealing ring fails, it directly causes air leakage at the pipe joints. On the one hand, this results in the loss of the transported hot airflow without effective utilization, causing significant heat loss and a substantial decrease in the actual heating efficiency of the system. On the other hand, the leaking airflow disrupts the system's pre-designed airflow organization, leading to poor ventilation in localized areas and affecting environmental comfort. More importantly, most current spliced ​​heating and ventilation ducts do not adequately consider the need for future maintenance and replacement of the sealing rings during the design phase.

[0003] Most modular heating and ventilation duct designs do not provide a simple way to replace and install sealing rings. When a sealing ring is found to be faulty, maintenance personnel need to spend a considerable amount of time disassembling the duct to access and replace it, which not only increases maintenance time but also increases maintenance costs. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heating and ventilation duct that is easy to install, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model provides a heating and ventilation duct that is easy to install, including a first pipe body, a second pipe body, and a pressing mechanism. The first pipe body has a first annular groove, and the second pipe body has a third annular groove that matches the first annular groove. The pressing mechanism is fixedly connected to the first pipe body. The pressing mechanism includes an annular mounting platform. The annular mounting platform has multiple grooves at one end near the first pipe body. An arc-shaped pressure plate is slidably connected in the groove. A driving mechanism for driving the arc-shaped pressure plate is installed on the annular mounting platform. A sealing ring is installed on the first annular groove and the guide groove. The driving mechanism pushes the arc-shaped pressure plate to press the sealing ring. A quick-release mechanism is fixedly connected between the first pipe body and the second pipe body.

[0006] In one or more embodiments of this utility model, the driving mechanism includes a pair of first connecting rods, a second through hole matching the first connecting rod is provided on the annular mounting platform, the first connecting rod passes through the second through hole and is fixedly connected to the arc-shaped pressure plate, the other end of the first connecting rod is fixedly connected to a first connecting arm, the middle part of the first connecting arm is fixedly connected to a first threaded sleeve, and a screw matching the first threaded sleeve is rotatably connected to the extrusion mechanism.

[0007] In one or more embodiments of this utility model, a rotating disk is fixedly connected to the lower end of the screw, and a rotating table matching the rotating disk is fixedly connected to the extrusion mechanism.

[0008] In one or more embodiments of the present invention, the quick-release mechanism includes a second connecting arm, one end of which is fixedly connected to a second threaded sleeve that matches the screw, and the other end of the second connecting arm away from the second threaded sleeve is fixedly connected to a second connecting rod, the second connecting rod being perpendicular to the second connecting arm, and the other end of the second connecting rod away from the second connecting arm being fixedly connected to a wedge block.

[0009] In one or more embodiments of this utility model, a third through hole is provided on the second connecting arm, and a guide post matching the third through hole is fixedly connected to the annular mounting platform.

[0010] In one or more embodiments of this utility model, a connector is fixedly connected to the end of the second connecting rod away from the second connecting arm, a second sliding groove matching the connector is provided on the wedge block, the connector is slidably connected in the second sliding groove, and a plurality of springs are fixedly connected between the bottom wall of the second sliding groove and the connector.

[0011] In one or more embodiments of this utility model, the second tube body is provided with a snap-fit ​​groove that matches the wedge block.

[0012] In one or more embodiments of the present invention, a second annular groove matching the first annular groove is provided on the first tube body, and a fourth annular groove matching the third annular groove is provided on the second tube body.

[0013] The advantages of this invention are that it not only enables the rapid installation of two pipes, but also enhances the sealing performance of the connection between the two pipes through compression. When the sealing ring needs to be replaced, there is no need to disassemble the pipeline system on a large scale. Maintenance personnel can quickly separate the pipe body and replace the sealing ring, which greatly simplifies the maintenance process and saves time and costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0015] Figure 1 This is a schematic diagram of a heating and ventilation duct that is easy to install, according to one embodiment of the present invention. Figure 2 This is an exploded view of a heating and ventilation duct that is easy to install, according to one embodiment of the present invention. Figure 3 This is a cross-sectional view of a heating and ventilation duct that is easy to install, according to one embodiment of the present invention. Figure 1 ; Figure 4 This is a partial structural diagram of a heating and ventilation duct that is easy to install, according to one embodiment of the present invention. Figure 5 This is a cross-sectional view of a heating and ventilation duct that is easy to install, according to one embodiment of the present invention. Figure 2 ; Figure 6 for Figure 5 Schematic diagram of the structure at point A in the middle; Figure 7 This is a cross-sectional view of the second connecting rod and the wedge block in one embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. First tube body; 101. First annular groove; 1011. Second annular groove; 102. Guide groove; 2. Second tube body; 201. Third annular groove; 2011. Fourth annular groove; 202. Snap-fit ​​groove; 203. Guide rod; 3. Extrusion mechanism; 4. Annular mounting platform; 401. First sliding groove; 402. First through hole; 403. Groove; 404. Second through hole; 5. Rotary table; 6. Screw; 601. Rotary disk; 7. First connecting arm; 8. First threaded sleeve; 9. First connecting rod; 10. Arc-shaped pressure plate; 11. Second connecting arm; 1101. Third through hole; 12. Second threaded sleeve; 13. Second connecting rod; 1301. Connector; 14. Wedge block; 1401. Second sliding groove; 15. Guide post; 16. Sealing ring; 17. Spring. Detailed Implementation

[0017] 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.

[0018] Example 1: like Figures 1-6 As shown, a heating and ventilation duct that is easy to install according to one embodiment of the present invention includes a first pipe body 1 and a second pipe body 2. A first annular groove 101 is formed on the first pipe body 1, and a third annular groove 201 that matches the first annular groove 101 is formed on the second pipe body 2. A sealing ring 16 is installed between the first pipe body 1 and the second pipe body 2, and the sealing ring 16 is located at the first annular groove 101 and the third annular groove 201.

[0019] like Figures 1-6 As shown, a compression mechanism 3 is fixedly connected to the first pipe body 1. The compression mechanism 3 includes an annular mounting platform 4. The annular mounting platform 4 is ring-shaped. When the first pipe body 1 and the second pipe body 2 are spliced, the spliced ​​part of the first pipe body 1 and the second pipe body 2 is located within the annular mounting platform 4. Multiple grooves 403 are provided at one end of the annular mounting platform 4 near the first pipe body 1. An arc-shaped pressure plate 10 is slidably connected within the grooves 403. A driving mechanism for driving the arc-shaped pressure plate 10 is installed on the annular mounting platform 4. The driving mechanism pushes the arc-shaped pressure plate 10 to compress the sealing ring 16. After being compressed, the sealing ring 16 deforms and tightly fills the microscopic gap between the first pipe body 1 and the second pipe body 2, thereby effectively blocking the leakage path.

[0020] There are three sealing rings 16. The driving mechanism pushes the sealing rings 16 until the adjacent surfaces of the three sealing rings 16 come into contact. At this time, the three sealing rings 16 form a ring structure.

[0021] like Figures 1-6 As shown, the driving mechanism includes a pair of first connecting rods 9. A second through hole 404 matching the first connecting rod 9 is provided on the annular mounting platform 4. The first connecting rod 9 passes through the second through hole 404 and is fixedly connected to the arc-shaped pressure plate 10. A first connecting arm 7 is fixedly connected to the other end of the first connecting rod 9. The angle between the first connecting arm 7 and the first connecting rod 9 is a right angle. A first threaded sleeve 8 is fixedly connected to the middle of the first connecting arm 7. A screw 6 matching the first threaded sleeve 8 is rotatably connected to the extrusion mechanism 3. During the rotation of the screw 6, the height of the first connecting arm 7 increases or decreases, and the first connecting rod 9 slides with the arc-shaped pressure plate 10 in the second through hole 404. When the first connecting arm 7 moves towards the first tube body 1, the first connecting rod 9 can extrude the sealing ring 16.

[0022] Specifically, such as Figures 1-6 As shown, a rotating disk 601 is fixedly connected to the lower end of the screw 6, and a rotating platform 5 matching the rotating disk 601 is fixedly connected to the extrusion mechanism 3. The rotating platform 5 has a T-shaped limiting groove in its cross-section, and the rotating disk 601 has a T-shaped cross-section. The rotating disk 601 is installed in the rotating platform 5 to realize the rotational connection between the screw 6 and the rotating platform 5.

[0023] like Figures 1-6 As shown, the first pipe body 1 has a second annular groove 1011 that matches the first annular groove 101, and the second pipe body 2 has a fourth annular groove 2011 that matches the third annular groove 201. After the sealing ring 16 is compressed and deformed, a portion of it enters the second annular groove 1011 and the fourth annular groove 2011. The sealing ring 16 can fill the second annular groove 1011 and the fourth annular groove 2011, achieving a wider and more complex three-dimensional sealing surface, which greatly increases the resistance of the leakage path. When the medium pressure in the first pipe body 1 and the second pipe body 2 increases, the pressure acts on the sealing ring 16 filled in the second annular groove 1011 and the fourth annular groove 2011, pushing it more tightly against the side walls of the second annular groove 1011 and the fourth annular groove 2011. The greater the pressure, the stronger the sealing force, exhibiting a certain degree of self-adaptive sealing effect. The sealing ring 16 located in the second annular groove 1011 and the fourth annular groove 2011 forms multiple sealing barriers, significantly improving the reliability of the seal.

[0024] like Figures 1-6 As shown, a quick-release mechanism is fixedly connected between the first tube body 1 and the second tube body 2, which can quickly fix the first tube body 1 and the second tube body 2. The quick-release mechanism includes a second connecting arm 11, one end of which is fixedly connected to a second threaded sleeve 12 that matches the screw 6, and the other end of the second connecting arm 11 away from the second threaded sleeve 12 is fixedly connected to a second connecting rod 13. The second connecting rod 13 is perpendicular to the second connecting arm 11, and the other end of the second connecting rod 13 away from the second connecting arm 11 is fixedly connected to a wedge block 14. The second tube body 2 has a snap-fit ​​groove 202 that matches the wedge block 14, and the second connecting arm 11 has a third through hole 1101. A guide post 15 that matches the third through hole 1101 is fixedly connected to the annular mounting platform 4.

[0025] After the second tube 2 is inserted into the annular mounting platform 4, the position of the locking groove 202 is aligned with the position of the annular mounting platform 4. Then, the screw 6 is rotated, and the second threaded sleeve 12 moves downward, bringing with it the second connecting arm 11, the second connecting rod 13, and the wedge block 14, so that the wedge block 14 is located in the locking groove 202, thereby locking the first tube 1 and the second tube 2. At the same time, the arc-shaped pressure plate 10 also presses the sealing ring 16 downward under the action of the screw 6, forcing the sealing ring 16 to deform.

[0026] The annular mounting platform 4 has a first through hole 402 that matches the second connecting rod 13, and the annular mounting platform 4 has a first sliding groove 401 that matches the wedge block 14.

[0027] The above embodiments enhance the sealing effect through active mechanical pressure. The drive mechanism pushes the arc-shaped pressure plate 10 to compress the sealing ring 16, causing it to deform and tightly fill the microscopic gaps at the joint between the first pipe body 1 and the second pipe body 2, effectively blocking the leakage path and improving the reliability of the initial seal. Simultaneously, after the sealing ring 16 is compressed, some material flows into the second annular groove 1011 and the fourth annular groove 2011, forming a more complex three-dimensional sealing surface, greatly increasing the resistance of the leakage path and constituting multiple sealing barriers. Furthermore, when the pressure of the medium inside the pipeline increases, the pressure acts on the sealing ring 16 already filled in the annular groove, pushing it more tightly against the groove wall. This means that the greater the pressure, the stronger the sealing force, forming a beneficial adaptive sealing effect.

[0028] In the above embodiment, the clamping action is linked to the locking or separating mechanism of the pipeline, and can be completed synchronously by operating the screw 6, simplifying the complex work of clamping the sealing ring 16 and connecting the pipeline into a single action. This linkage design allows for the quick separation of the first pipe body 1 and the second pipe body 2 when the sealing ring 16 needs to be replaced, enabling direct maintenance or replacement of the sealing ring 16. This avoids the cumbersome process of disassembling a large number of bolts required in traditional methods, significantly saving maintenance time and costs.

[0029] Example 2: To achieve pre-compression, such as Figures 1 to 7 As shown, a connector 1301 is fixedly connected to the end of the second connecting rod 13 away from the second connecting arm 11. A second sliding groove 1401 matching the connector 1301 is provided on the wedge block 14. The connector 1301 is slidably connected in the second sliding groove 1401. Multiple springs 17 are fixedly connected between the bottom wall of the second sliding groove 1401 and the connector 1301. When the second tube 2 is inserted into the annular mounting platform 4, it contacts the wedge block 14. The wedge block 14 is subjected to pressure, causing the springs 17 to deform. When the wedge block 14 matches the position of the snap-fit ​​groove 202, the wedge block 14 enters the snap-fit ​​groove 202, realizing the pre-installation of the first tube 1 and the second tube 2.

[0030] like Figures 1-2 As shown, the first tube 1 has three guide grooves 102, and the second tube 2 has a guide rod 203 that matches the guide grooves 102. The three guide grooves 102 are in the shape of an isosceles triangle, which allows the guide rod 203 and the guide groove 102 to be accurately aligned, thereby ensuring that the wedge block 14 and the snap-fit ​​groove 202 are aligned.

[0031] In this embodiment, the first pipe body 1 and the second pipe body 2 are pre-fixed. When the second pipe body 2 is inserted into the annular mounting platform 4, the wedge block 14 will first contact the pipe body. This contact pressure will be transmitted to the spring 17, causing it to deform. This deformation process of the spring 17 effectively absorbs part of the installation impact force, playing a good buffering role, avoiding hard collisions between components, and reducing the risk of installation damage. When the snap-fit ​​groove 202 moves to be fully aligned with the wedge block 14, the restoring force of the previously compressed spring 17 will push the wedge block 14 to automatically spring into the snap-fit ​​groove 202, realizing the pre-installation state of the pipe. This pre-installation means that the two pipe fittings have achieved a preliminary and reliable connection, providing a stable platform for the subsequent final compression and sealing operation.

[0032] The three guide grooves 102 are arranged in an isosceles triangle. This asymmetrical layout geometrically ensures that the pipes can only be connected in the single correct orientation, effectively preventing assembly errors or misalignments in the circumferential direction.

[0033] Obviously, the above-described embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, then this utility model also intends to include these modifications and variations.

Claims

1. A heating and ventilation duct that is easy to install, characterized in that, include: The first tube (1) and the second tube (2) are provided with a first annular groove (101) on the first tube (1) and a third annular groove (201) matching the first annular groove (101) on the second tube (2). The extrusion mechanism (3) is fixedly connected to the first tube body (1). The extrusion mechanism (3) includes an annular mounting platform (4). The annular mounting platform (4) has multiple grooves (403) at one end near the first tube body (1). An arc-shaped pressure plate (10) is slidably connected in the groove (403). A driving mechanism for driving the arc-shaped pressure plate (10) is installed on the annular mounting platform (4). A sealing ring (16) is installed on the first annular groove (101) and the guide groove (102), and the driving mechanism pushes the arc-shaped pressure plate (10) to squeeze the sealing ring (16). A quick-release mechanism is fixedly connected between the first tube (1) and the second tube (2).

2. The easy-to-install heating and ventilation duct as described in claim 1, characterized in that, The driving mechanism includes a pair of first connecting rods (9). The annular mounting platform (4) has a second through hole (404) that matches the first connecting rod (9). The first connecting rod (9) passes through the second through hole (404) and is fixedly connected to the arc-shaped pressure plate (10). The other end of the first connecting rod (9) is fixedly connected to a first connecting arm (7). The middle part of the first connecting arm (7) is fixedly connected to a first threaded sleeve (8). The extrusion mechanism (3) is rotatably connected to a screw (6) that matches the first threaded sleeve (8).

3. A heating and ventilation duct that is easy to install as described in claim 2, characterized in that, The lower end of the screw (6) is fixedly connected to a rotating disk (601), and the extrusion mechanism (3) is fixedly connected to a rotating table (5) that matches the rotating disk (601).

4. A heating and ventilation duct that is easy to install as described in claim 2 or 3, characterized in that, The quick-release mechanism includes a second connecting arm (11), one end of which is fixedly connected to a second threaded sleeve (12) that matches the screw (6), and the other end of the second connecting arm (11) away from the second threaded sleeve (12) is fixedly connected to a second connecting rod (13). The second connecting rod (13) is perpendicular to the second connecting arm (11), and the other end of the second connecting rod (13) away from the second connecting arm (11) is fixedly connected to a wedge block (14).

5. A heating and ventilation duct that is easy to install as described in claim 4, characterized in that, The second connecting arm (11) has a third through hole (1101), and the annular mounting platform (4) is fixedly connected with a guide post (15) that matches the third through hole (1101).

6. A heating and ventilation duct that is easy to install as described in claim 4, characterized in that, The end of the second connecting rod (13) away from the second connecting arm (11) is fixedly connected to a connector (1301). The wedge block (14) is provided with a second sliding groove (1401) that matches the connector (1301). The connector (1301) is slidably connected in the second sliding groove (1401). A plurality of springs (17) are fixedly connected between the bottom wall of the second sliding groove (1401) and the connector (1301).

7. A heating and ventilation duct that is easy to install as described in claim 6, characterized in that, The second tube (2) has a snap-fit ​​groove (202) that matches the wedge block (14).

8. A heating and ventilation duct that is easy to install as described in claim 1, characterized in that, The first tube (1) is provided with a second annular groove (1011) that matches the first annular groove (101), and the second tube (2) is provided with a fourth annular groove (2011) that matches the third annular groove (201).

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