Ventilation pipeline sealing structure

Abstract

The utility model discloses a ventilation pipeline sealing structure which comprises an installation frame and an adjusting mechanism, and a cavity is formed in the installation frame. The adjusting mechanism comprises connecting plates, first trapezoidal blocks and ejector blocks, the connecting plates are slidably connected with the inner wall of the cavity, the ejector blocks are arranged at the left ends of the connecting plates, the first trapezoidal blocks are slidably connected with sliding grooves formed in the left side of the inner wall of the mounting frame, and the right ends of the first trapezoidal blocks make contact with inclined planes arranged at the left ends of the transversely adjacent ejector blocks; the adjusting mechanism further comprises a mounting plate, top plates and second trapezoidal blocks, the mounting plate is slidably connected with the right wall of the cavity, the top plates are arranged on the front side and the rear side of the lower end of the mounting plate correspondingly, and the second trapezoidal blocks are arranged on the front side and the rear side of the right end of the connecting plate correspondingly. Complex adjustment and positioning are not needed, the ventilation pipeline is more compact and stable, and medium leakage can be more effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a sealing structure for ventilation ducts. Background Technique

[0002] Ventilation ducts are metal or non-metal ducts used in the ventilation and air-conditioning projects of industrial and civil buildings, mainly used to achieve the circulation and exchange of air inside the building, so as to keep the indoor air fresh and comfortable. Ventilation ducts are generally composed of two or more layers of high-strength inorganic materials and a layer of thermal insulation material, and have the characteristics of light weight, high strength, non-combustibility, sound insulation, heat insulation, and can be used in humid environments;

[0003] During the installation of ventilation ducts, usually, the cooperation of flanges and fastening bolts is used to connect two groups of ventilation ducts. When connecting, the operator will set a sealing rubber pad between the two flanges to seal the ventilation ducts;

[0004] When the existing ventilation ducts are in use, although a sealing rubber pad can be set between the two flanges to seal the ventilation ducts, the actual operation is relatively cumbersome, with high requirements for the technical level of installers, and it is necessary to adjust and position back and forth. Moreover, there may be some uneven places on the sealing surface of the flange. If the sealing rubber pad cannot effectively fill these uneven places, medium leakage will occur later. For this reason, we propose a sealing structure for ventilation ducts. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects, provide a sealing structure for ventilation ducts, which only needs to be wrapped around the flange connection during installation, without complex adjustment and positioning, making the ventilation ducts more compact and stable, and being able to more effectively prevent medium leakage, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sealing structure for ventilation ducts, including an installation frame, a cavity is arranged inside the installation frame, and an adjusting mechanism is further included;

[0007] Adjusting mechanism: It includes a connecting plate, a first trapezoidal block and a top block. The connecting plate is slidably connected to the inner wall of the cavity. The left ends of the connecting plate are both provided with top blocks. The first trapezoidal blocks are respectively slidably connected to the chutes arranged on the left side of the inner wall of the installation frame. The right ends of the first trapezoidal blocks are respectively in contact with the inclined surfaces arranged on the left ends of the laterally adjacent top blocks. During installation, it only needs to be wrapped around the flange connection, without complex adjustment and positioning, making the ventilation ducts more compact and stable, and being able to more effectively prevent medium leakage.

[0008] Further, the adjusting mechanism further includes a mounting plate, a top plate and a second trapezoidal block. The mounting plate is slidably connected to the right wall of the cavity. Top plates are arranged on both the front and rear sides of the lower end of the mounting plate. The second trapezoidal blocks are respectively arranged on both the front and rear sides of the right end of the connecting plate. The upper ends of the second trapezoidal blocks are respectively in contact with the inclined surfaces arranged at the lower ends of the vertically adjacent top plates, and can adjust the position of the connecting plate.

[0009] Further, it further includes a screw rod and an adjusting wheel. The screw rod is rotatably connected to the right side of the top wall of the cavity. The screw rod is threadedly connected to a threaded hole arranged in the middle of the upper end of the mounting plate. The adjusting wheel is arranged at the upper end of the screw rod. During the rotation of the screw rod, the mounting plate is driven to move downward through threaded connection.

[0010] Further, it further includes a fixing plate and a sealing rubber pad. The fixing plates are respectively arranged at one end of the first trapezoidal block close to the center inside the mounting frame. The sealing rubber pads are respectively arranged at one end of the fixing plates close to the center inside the mounting frame. The connection part of the flange is wrapped by the sealing rubber pads, thereby realizing the sealing work of the ventilation duct.

[0011] Further, it further includes mounting rods and springs. The mounting rods are respectively slidably connected to relief grooves arranged on the left side inside the cavity. One end of two horizontally adjacent mounting rods close to the center inside the mounting frame is fixedly connected to one end of a fixing plate away from the center inside the mounting frame. Limit plates are arranged at the ends of the mounting rods away from the center inside the mounting frame. The springs are respectively arranged between the ends of the limit plates close to the center inside the mounting frame and the inner wall of the cavity. The springs are sleeved on the outer sides of the mounting rods. The pulling force generated by the extension of the springs can drive the fixing plates to move back to their original positions.

[0012] Further, it further includes guiding sliding columns and return springs. The guiding sliding columns are respectively arranged at the four corners of the left wall of the cavity. The right ends of the guiding sliding columns are respectively slidably connected to sliding holes arranged corresponding to the left end of the connecting plate. Baffles are arranged at the right ends of the guiding sliding columns. The return springs are respectively arranged between the left end of the connecting plate and the left wall of the cavity. The return springs are sleeved on the outer sides of the left sides of the guiding sliding columns. The pulling force generated by the extension of the return springs can drive the fixing plates to move back to their original positions and reset the connecting plate.

[0013] Further, it further includes a rubber pad. The rubber pad is arranged in the middle of the outer surface. The rubber pad can prevent the mounting frame from being damaged.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The sealing structure of this ventilation duct has the following advantages:

[0015] The fixed plate drives the sealing rubber pad to move. At this time, the distance between the sealing rubber pads gradually decreases, causing the sealing rubber pads to gradually come into contact with the flange at the connection of the ventilation duct. Finally, the connection of the flange is wrapped by the sealing rubber pads. There is no need for complex adjustment and positioning, which reduces the complexity and difficulty of installation. Instead of the traditional method of sealing the ventilation duct by setting a sealing rubber pad between two flanges, the ventilation duct becomes more compact and stable, and can more effectively prevent medium leakage, solving the problem of medium leakage caused by the gaps or unevenness between the flange and the sealing rubber pad. Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of the adjusting mechanism of the present utility model;

[0018] Figure 3 It is a schematic front sectional view structure diagram of the present utility model.

[0019] In the figure: 1 mounting frame, 2 cavity, 3 rubber pad, 4 adjusting mechanism, 41 connecting plate, 42 trapezoidal block 1, 43 top block, 44 mounting plate, 45 top plate, 46 trapezoidal block 2, 5 fixed plate, 6 sealing rubber pad, 7 screw, 8 adjusting wheel, 9 mounting rod, 10 spring, 11 guiding slide post, 12 reset spring. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-3 , this embodiment provides a technical solution: a ventilation duct sealing structure, including a mounting frame 1, a cavity 2 is arranged inside the mounting frame 1, and an adjusting mechanism 4 is further included;

[0022] Adjusting mechanism 4: It includes a connecting plate 41, a first trapezoidal block 42 and a top block 43. The connecting plate 41 is slidably connected to the inner wall of the cavity 2. Top blocks 43 are provided at the left ends of the connecting plate 41. The first trapezoidal blocks 42 are respectively slidably connected to the chutes provided on the left side of the inner wall of the mounting frame 1. The right ends of the first trapezoidal blocks 42 are respectively in contact with the inclined surfaces provided at the left ends of the laterally adjacent top blocks 43. The adjusting mechanism 4 further includes a mounting plate 44, a top plate 45 and a second trapezoidal block 46. The mounting plate 44 is slidably connected to the right wall of the cavity 2. Top plates 45 are provided on both the front and rear sides of the lower end of the mounting plate 44. The second trapezoidal blocks 46 are respectively provided on both the front and rear sides of the right end of the connecting plate 41. The upper ends of the second trapezoidal blocks 46 are respectively in contact with the inclined surfaces provided at the lower ends of the vertically adjacent top plates 45. The fixing plate 5 drives the sealing rubber pad 6 to move. At this time, the distance between the sealing rubber pads 6 gradually decreases, so that the sealing rubber pads 6 gradually come into contact with the flange at the connection of the ventilation duct. Finally, the connection of the flange is wrapped by the sealing rubber pads 6, replacing the traditional method of sealing the ventilation duct by setting a sealing rubber pad 6 between two flanges, making the ventilation duct more compact and stable, and being able to more effectively prevent the leakage of the medium, solving the problem of medium leakage caused by the gaps or unevenness between the flange and the sealing rubber pad 6.

[0023] Wherein: It further includes a screw rod 7 and an adjusting wheel 8. The screw rod 7 is rotatably connected to the right side of the top wall of the cavity 2. The screw rod 7 is threadedly connected to the threaded hole provided in the middle of the upper end of the mounting plate 44. The adjusting wheel 8 is provided at the upper end of the screw rod 7. The operator rotates the adjusting wheel 8, and the adjusting wheel 8 drives the screw rod 7 to rotate. During the rotation of the screw rod 7, it drives the mounting plate 44 to move downward through threaded connection.

[0024] Wherein: It further includes a fixing plate 5 and a sealing rubber pad 6. The fixing plates 5 are respectively provided at one end of the first trapezoidal blocks 42 close to the center of the inside of the mounting frame 1. The sealing rubber pads 6 are respectively provided at one end of the fixing plates 5 close to the center of the inside of the mounting frame 1. The fixing plate 5 drives the sealing rubber pad 6 to move. At this time, the distance between the sealing rubber pads 6 gradually decreases, so that the sealing rubber pads 6 gradually come into contact with the flange at the connection of the ventilation duct. Finally, the connection of the flange is wrapped by the sealing rubber pads 6, thereby realizing the sealing work of the ventilation duct.

[0025] Wherein: It further includes a mounting rod 9 and a spring 10. The mounting rods 9 are respectively slidably connected to the relief grooves provided on the left side inside the cavity 2. One end of the laterally adjacent two mounting rods 9 close to the center of the inside of the mounting frame 1 is fixedly connected to one end of a fixing plate 5 away from the center of the inside of the mounting frame 1. Limit plates are provided at the ends of the mounting rods 9 away from the center of the inside of the mounting frame 1. The springs 10 are respectively provided between the ends of the limit plates close to the center of the inside of the mounting frame 1 and the inner wall of the cavity 2. The springs 10 are all sleeved on the outside of the mounting rods 9. The pulling force generated by the extension of the springs 10 can drive the fixing plate 5 to move back to its original position.

[0026] Wherein: it further includes guiding slide columns 11 and return springs 12. The guiding slide columns 11 are respectively arranged at the four corners of the left wall of the cavity 2. The right ends of the guiding slide columns 11 are respectively slidably connected to the sliding holes correspondingly arranged at the left ends of the connecting plate 41. Baffles are arranged at the right ends of the guiding slide columns 11. The return springs 12 are respectively arranged between the left end of the connecting plate 41 and the left wall of the cavity 2. The return springs 12 are sleeved on the outer sides of the left sides of the guiding slide columns 11. The pulling force generated by the extension of the return springs 12 can drive the fixing plate 5 to move and reset the connecting plate 41.

[0027] Wherein: it further includes a rubber pad 3. The rubber pad 3 is arranged in the middle of the outer surface. The rubber pad 3 can prevent the installation frame 1 from being damaged.

[0028] The working principle of a ventilation duct sealing structure provided by the present utility model is as follows: During operation, two groups of ventilation ducts are moved into the interior of the installation frame 1, and then the two groups of ventilation ducts are connected by means of the cooperation of flanges and fastening bolts. After the connection, the operator rotates the adjusting runner 8, and the adjusting runner 8 drives the screw rod 7 to rotate. During the rotation of the screw rod 7, the screw rod 7 drives the mounting plate 44 to move downward through threaded connection. The mounting plate 44 drives the top plate 45 to move downward. When the top plate 45 contacts the trapezoidal block two 46, the trapezoidal block two 46 starts to drive the connecting plate 41 to move leftward under the thrust of the top plate 45. The connecting plate 41 drives the top block 43 to move leftward, and the return spring 12 contracts. When the top block 43 contacts the trapezoidal block one 42, the trapezoidal block one 42 starts to drive the fixing plate 5 to move under the thrust of the top block 43, and the spring 10 contracts. The fixing plate 5 drives the sealing rubber pad 6 to move. At this time, the distance between the sealing rubber pads 6 gradually decreases, so that the sealing rubber pads 6 gradually contact the flanges at the connection of the ventilation ducts. Finally, the connection of the flanges is wrapped by the sealing rubber pads 6, thereby realizing the sealing work of the ventilation ducts.

[0029] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A ventilation duct sealing structure, comprising a mounting frame (1), wherein a cavity (2) is provided inside the mounting frame (1), characterized in that: Also includes an adjustment mechanism (4); The adjusting mechanism (4) comprises a connecting plate (41), a trapezoidal block 1 (42) and a top block (43), wherein the connecting plate (41) is slidably connected to the inner wall of the cavity (2), a top block (43) is provided at the left end of each connecting plate (41), the trapezoidal block 1 (42) is slidably connected to a slide groove provided on the left side of the inner wall of the mounting frame (1), and the right end of each trapezoidal block 1 (42) is in contact with an inclined surface provided at the left end of a laterally adjacent top block (43).

2. A ventilation duct sealing structure according to claim 1, characterized in that: The adjustment mechanism (4) further comprises a mounting plate (44), a top plate (45) and a second trapezoidal block (46); the mounting plate (44) is slidably connected to the right wall of the cavity (2); the top plate (45) is provided on both the front and rear sides of the lower end of the mounting plate (44); the second trapezoidal block (46) is respectively provided on the front and rear sides of the right end of the connecting plate (41); the upper end of the second trapezoidal block (46) is respectively in contact with the inclined surface provided on the lower end of the vertically adjacent top plate (45).

3. A ventilation duct sealing structure according to claim 2, characterized in that: It also includes a screw rod (7) and an adjusting wheel (8), wherein the screw rod (7) is rotatably connected to the right side of the top wall of the cavity (2), the screw rod (7) is threadedly connected to a threaded hole arranged in the middle of the upper end of the mounting plate (44), and the adjusting wheel (8) is arranged at the upper end of the screw rod (7).

4. A ventilation duct sealing structure according to claim 1, characterized in that: It also includes a fixing plate (5) and a sealing rubber pad (6), wherein the fixing plate (5) is arranged at one end of the trapezoidal block (42) close to the inner center of the installation frame (1), and the sealing rubber pad (6) is arranged at one end of the fixing plate (5) close to the inner center of the installation frame (1).

5. A ventilation duct sealing structure according to claim 4, characterized in that: It also includes a mounting rod (9) and a spring (10), wherein the mounting rod (9) is slidably connected to a avoidance groove arranged on the left side of the cavity (2), and one end of two transversely adjacent mounting rods (9) close to the inner center of the mounting frame (1) is fixedly connected to one end of a fixing plate (5) away from the inner center of the mounting frame (1), and a limiting plate is arranged at one end of the mounting rod (9) away from the inner center of the mounting frame (1), and the spring (10) is arranged between one end of the limiting plate close to the inner center of the mounting frame (1) and the inner wall of the cavity (2), and the spring (10) is sleeved on the outside of the outer side of the mounting rod (9).

6. A ventilation duct sealing structure according to claim 1, characterized in that: The invention also comprises a guide slide post (11) and a return spring (12), wherein the guide slide post (11) is respectively arranged at the four corners of the left wall of the cavity (2), the right end of the guide slide post (11) is respectively slidably connected with the slide holes correspondingly arranged at the left end of the connecting plate (41), a baffle is arranged at the right end of the guide slide post (11), the return spring (12) is respectively arranged between the left end of the connecting plate (41) and the left wall of the cavity (2), and the return spring (12) is sleeved on the outside of the left side of the guide slide post (11).

7. A ventilation duct sealing structure according to claim 1, characterized in that: It also comprises a rubber pad (3), wherein the rubber pad (3) is arranged in the middle of the outer surface.

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