Ventilation pipeline butt joint device with high sealing performance

Abstract

The utility model belongs to the technical field of ventilation pipeline butt joint, and particularly relates to a high-sealing-performance ventilation pipeline butt joint device which comprises a first pipeline, the right end of the first pipeline is in contact with a second pipeline, the outer side of the first pipeline is fixedly sleeved with a first installation disc, and the outer side of the second pipeline is fixedly sleeved with a second installation disc. An annular sealing groove is formed in the inner wall of the first pipeline, a fixing ring is fixedly connected to the inner wall of the second pipeline, the fixing ring is slidably connected with the first pipeline, and an annular extrusion groove is formed in the surface of the fixing ring. The fixing ring is inserted into the first pipeline by pushing the first pipeline to make contact with the second pipeline, the butt joint sealing performance between the first pipeline and the second pipeline can be guaranteed under the structures of the annular sealing groove, the sealing piece and the like, the sealing piece can make contact with the annular sealing groove all the time under the action of the structures of the elastic supporting piece and the like, and therefore the good sealing effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct docking technology, specifically a high-sealing ventilation duct docking device. Background Technology

[0002] High-sealing ventilation duct connection devices are used to connect and assemble ventilation ducts. Their primary purpose is to ensure a high degree of airtightness at the duct joints, preventing air leakage and ensuring the normal operation of the ventilation system. These devices are commonly used in buildings, industrial facilities, and other ventilation systems, where their key function is to maintain the airtightness of the duct joints, prevent gas leakage, and maintain the efficiency of the ventilation system.

[0003] A utility model patent with patent authorization announcement number CN220561424U discloses a heating and ventilation duct installation and docking device, including a sleeve and a screw. A rubber pad is fixedly installed inside the sleeve. Two first fixing rings are fixedly connected to one side of the sleeve. Clamping blocks are fixedly installed on the outside of the two first fixing rings. The screw passes through the two clamping blocks. A nut is threadedly connected to the screw below one of the clamping blocks. A clamping structure is provided on the outside of the two first fixing rings. The clamping structure includes a fixing block and a second fixing ring.

[0004] However, traditional high-sealing ventilation duct connection devices also have certain shortcomings. Although existing high-sealing ventilation duct connection devices use sealing rings and sealing rings to complete the sealing connection between pipes, due to the limitations of rubber materials, long-term use can easily cause aging and deformation of sealing rings and sealing rings, resulting in weak connection sealing. Utility Model Content

[0005] The purpose of this utility model is to provide a high-sealing ventilation duct docking device, which solves the problem that although existing high-sealing ventilation duct docking devices use sealing rings and sealing rings to complete the sealing connection between pipes, the sealing rings and sealing rings are prone to aging and deformation due to the limitations of rubber materials, resulting in weak connection sealing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-sealing ventilation duct docking device, comprising a first duct, the right end of which contacts a second duct, a first mounting plate fixedly sleeved on the outer side of the first duct, a second mounting plate fixedly sleeved on the outer side of the second duct, an annular sealing groove formed on the inner wall of the first duct, a fixing ring fixedly connected to the inner wall of the second duct, the fixing ring being slidably connected to the first duct, an annular extrusion groove formed on the surface of the fixing ring, two symmetrically distributed sealing elements slidably connected to the inner wall of the annular extrusion groove, and a docking and fixing mechanism being provided on both the first duct and the second duct.

[0007] Preferably, the end faces of the two seals are in contact with each other, and each seal is in contact with the annular sealing groove. By setting the seals, the sealing performance of the connection between pipe one and pipe two can be guaranteed.

[0008] Preferably, each of the seals has multiple evenly distributed elastic support members bonded to its inner side, and the other end of each elastic support member is bonded to a fixing ring. The elastic support members can be used to tighten the seal.

[0009] Preferably, the docking and fixing mechanism includes a first fixing lug, a second fixing lug, and a third fixing lug. The left end of the first fixing lug is fixedly connected to the first fixing lug, which is slidably connected to the second fixing lug. A nut is threaded onto the outer side of the screw, and the nut contacts the second fixing lug. A groove is formed on the surface of the nut. An mounting plate is fixedly connected to the upper end of the second fixing lug. A retaining plate is slidably connected to the inner wall of the mounting plate, and the retaining plate is slidably connected to the groove. A spring is welded to the horizontal part of the retaining plate, and the other end of the spring is welded to the mounting plate. Through the screw, nut, and other structural features, the first and second pipes can be locked together. The groove and retaining plate help to limit the nut's position, preventing it from vibrating and loosening.

[0010] Preferably, there are two fixing ears, which are symmetrically distributed on the pipe. The fixing ears can be used for the installation of screws.

[0011] Preferably, multiple slots are provided, and the multiple slots are arranged in a circular array on the nut. The slots facilitate the use of the card plate for snap-fit ​​connection.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model pushes pipe one into contact with pipe two, so that the fixing ring is inserted into pipe one. With the structure of annular sealing groove and sealing element, the sealing between pipe one and pipe two can be guaranteed. With the action of elastic support element and other structures, the sealing element can always be in contact with annular sealing groove to ensure good sealing effect.

[0014] 2. This utility model, through the setting of screws, nuts and other structures, can perform pull-locking treatment between pipe one and pipe two to complete the docking and fixing between pipe one and pipe two. With the structure of slots, plates and other structures, the nuts can be limited to avoid the problem of nut vibration and loosening. Attached Figure Description

[0015] Figure 1This is a three-dimensional view of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 A partial frontal sectional view;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of point A;

[0018] Figure 4 For the present utility model Figure 2 A cross-sectional view of the pipe;

[0019] Figure 5 For the present utility model Figure 1 Enlarged view of point B.

[0020] In the diagram: 1. Pipe 1; 2. Pipe 2; 3. Mounting plate 1; 4. Mounting plate 2; 5. Annular sealing groove; 6. Fixing ring; 7. Annular extrusion groove; 8. Seal; 9. Elastic support; 10. Connecting and fixing mechanism; 101. Fixing lug 1; 102. Fixing lug 2; 103. Screw; 104. Nut; 105. Slot; 106. Mounting plate; 107. Clamping plate; 108. Spring. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A high-sealing ventilation duct docking device includes a duct 1, a duct 2 at the right end of the duct 1, an installation plate 3 fixedly sleeved on the outer side of the duct 1, an installation plate 4 fixedly sleeved on the outer side of the duct 2, an annular sealing groove 5 on the inner wall of the duct 1, a fixing ring 6 fixedly connected to the inner wall of the duct 2, the fixing ring 6 being slidably connected to the duct 1, an annular extrusion groove 7 on the surface of the fixing ring 6, two symmetrically distributed sealing elements 8 slidably connected to the inner wall of the annular extrusion groove 7, and a docking and fixing mechanism 10 jointly provided on the duct 1 and the duct 2.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4The end faces of the two sealing elements 8 are in contact with each other, and each sealing element 8 is in contact with the annular sealing groove 5. The sealing elements 8 can ensure the sealing of the connection between pipe 1 and pipe 2. Multiple evenly distributed elastic support elements 9 are bonded to the inner side of each sealing element 8. The other end of each elastic support element 9 is bonded to the fixing ring 6. The sealing elements 8 can be tightened by the elastic support elements 9.

[0024] Please see Figure 1 , Figure 2 , Figure 5 The docking and fixing mechanism 10 includes a fixing lug 101. The fixing lug 101 is fixedly connected to the side of pipe 2, and the fixing lug 102 is fixedly connected to the side of pipe 1. A screw 103 is fixedly connected to the left end of the fixing lug 101, and the screw 103 is slidably connected to the fixing lug 102. A nut 104 is threadedly connected to the outside of the screw 103, and the nut 104 contacts the fixing lug 102. A groove 105 is formed on the surface of the nut 104. The upper end of the fixing lug 102 is fixedly connected to... There is an installation plate 106, and a retaining plate 107 is slidably connected to the inner wall of the installation plate 106. The retaining plate 107 is slidably connected to the retaining groove 105. A spring 108 is welded to the horizontal part of the retaining plate 107. The other end of the spring 108 is welded to the installation plate 106. Through the setting of the screw 103, nut 104 and other structures, pipe 1 and pipe 2 can be locked. The retaining groove 105, retaining plate 107 and other structures can limit the nut 104 and prevent the nut 104 from vibrating and loosening.

[0025] Please see Figure 1 , Figure 2 , Figure 5 There are two fixing ears 101, which are symmetrically distributed on the pipe 2. The fixing ears 101 can be used for the installation of the screw 103. There are multiple slots 105, which are arranged in a ring array on the nut 104. The slots 105 facilitate the use of the clamping plate 107 for clamping.

[0026] The specific implementation process of this utility model is as follows: In use, by pulling the card plate 107 upward, the card plate 107 slides along the inner wall of the mounting plate 106, the spring 108 deforms, and then pushes the pipe 1 to contact the pipe 2, so that the screw 103 passes through the fixing lug 2 102. Then push the nut 104 to contact the screw 103, rotate the nut 104, so that the nut 104 makes threaded movement, and fix the nut 104, thereby pulling and locking the pipe 1 and the pipe 2. Then release the card plate 107 so that the spring 108 returns to its deformation, so that the card plate 107 can be pulled into the slot 105 to limit the use of the nut 104 and prevent the nut 104 from loosening.

[0027] When pipe 1 comes into contact with pipe 2, the fixing ring 6 can slide into pipe 1. Under the pressure of the force, the sealing element 8 moves and drives the inner wall of the annular compression groove 7 to slide, causing the elastic support 9 to deform. This causes the sealing element 8 to come into contact with the inner wall of pipe 1. Under the action of the force, the sealing element 8 slides along the inner wall of pipe 1. When the sealing element 8 slides into the annular sealing groove 5, the elastic support 9 restores its deformation to push the sealing element 8 into the annular sealing groove 5, so as to ensure the sealing between pipe 1 and pipe 2. Under the deformation of the elastic support 9, the sealing element 8 can always be in contact with the annular sealing groove 5 to ensure a good sealing effect.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-sealing ventilation duct docking device, comprising a duct (1), characterized in that: The right end of the first pipe (1) is in contact with the second pipe (2). The outer side of the first pipe (1) is fixedly fitted with the first mounting plate (3). The outer side of the second pipe (2) is fixedly fitted with the second mounting plate (4). The inner wall of the first pipe (1) is provided with an annular sealing groove (5). The inner wall of the second pipe (2) is fixedly connected with a fixing ring (6). The fixing ring (6) is slidably connected to the first pipe (1). The surface of the fixing ring (6) is provided with an annular extrusion groove (7). The inner wall of the annular extrusion groove (7) is slidably connected with two symmetrically distributed sealing elements (8). The first pipe (1) and the second pipe (2) are jointly provided with a docking and fixing mechanism (10).

2. The high-sealing ventilation duct docking device according to claim 1, characterized in that: The end faces of the two seals (8) are in contact with each other, and each seal (8) is in contact with the annular sealing groove (5).

3. The high-sealing ventilation duct docking device according to claim 1, characterized in that: Each of the seals (8) has a plurality of evenly distributed elastic supports (9) bonded to its inner side, and the other end of each elastic support (9) is bonded to a retaining ring (6).

4. The high-sealing ventilation duct docking device according to claim 1, characterized in that: The docking and fixing mechanism (10) includes a fixing lug 1 (101), a fixing lug 1 (101) is fixedly connected to the side of the second pipe (2), a fixing lug 2 (102) is fixedly connected to the side of the first pipe (1), a screw (103) is fixedly connected to the left end of the fixing lug 1 (101), the screw (103) is slidably connected to the fixing lug 2 (102), and a nut (104) is threadedly connected to the outside of the screw (103). The nut (104) is in contact with the second fixing ear (102). A slot (105) is provided on the surface of the nut (104). An installation piece (106) is fixedly connected to the upper end of the second fixing ear (102). A retaining plate (107) is slidably connected to the inner wall of the installation piece (106). The retaining plate (107) is slidably connected to the slot (105). A spring (108) is welded to the horizontal part of the retaining plate (107). The other end of the spring (108) is welded to the installation piece (106).

5. A high-sealing ventilation duct connection device according to claim 4, characterized in that: Two fixing ears (101) are provided, and the two fixing ears (101) are symmetrically distributed on the pipe (2).

6. A high-sealing ventilation duct docking device according to claim 4, characterized in that: Multiple slots (105) are provided, and the multiple slots (105) are arranged in a ring array on the nut (104).

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