Flue butt joint finished product sealing device

Abstract

The utility model relates to a flue butt joint finished product sealing device which comprises an upper flue and a lower flue, the upper flue and the lower flue are connected in a sealing mode through a butt joint device, the butt joint device comprises a sealing outer frame, and the inner wall of the sealing outer frame is attached to the outer wall of the upper flue and the outer wall of the lower flue. A circle of sealing rubber mat is arranged on the inner side wall face of the sealing outer frame, a clamping assembly is arranged on the inner side of each edge of the sealing rubber mat, each edge of the sealing outer frame is in threaded connection with a threaded rod, and the threaded rods rotationally penetrate through the sealing rubber mat and then are connected with the clamping assemblies, so that the flue is stably connected, and the sealing performance is good.

Description

Technical Field

[0001] The utility model relates to a smoke duct butt joint finished product sealing device, belonging to the technical field of connecting pieces. Background Art

[0002] Flue refers to the pipe products used to remove smoke generated by cooking activities in the kitchen or foul air in the bathroom. It is the main component of the exhaust pipe system shared by residential kitchens and bathrooms. Flue is mostly prefabricated with alkali-resistant glass fiber mesh cloth sandwiched in sulphoaluminate cement or steel wire mesh sandwiched in ordinary silicate cement and other reinforcing materials. Flue connectors are used to fix two flues together to form a whole connector. Flues are mostly spliced ​​with straight seams and then fixed with steel nails. However, there are problems: steel nails are prone to corrosion, and flues spliced ​​with straight seams are prone to deformation and dislocation, resulting in gaps between flue pipes, which can easily lead to smoke leakage.

[0003] The existing patent CN203742128U discloses an inner sleeve for flue jointing, which includes a joint sleeve that fits the inner side of the flue end, a convex edge band is arranged around the middle of the outer side of the joint sleeve, and the joint sleeve is arranged at the flue joint. Although the above patent does not require steel nails for connection and prevents the flue from deformation and dislocation to a certain extent, the problem is that the flue connection only through the inner sleeve is not stable enough and the sealing is not good. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a flue butt joint finished product sealing device, which can ensure that the flue is firmly connected and has good sealing performance.

[0005] The technical solution of the utility model is as follows:

[0006] A finished sealing device for connecting flues, comprising an upper flue and a lower flue, wherein the upper flue and the lower flue are sealed and connected via a connecting device, and the connecting device comprises a sealing outer frame, wherein the inner wall of the sealing outer frame is arranged to fit the outer walls of the upper flue and the lower flue; a circle of sealing rubber gasket is arranged on the inner wall of the sealing outer frame, a clamping assembly is arranged on the inner side of each edge of the sealing rubber gasket, a threaded rod is threadedly connected to each edge of the sealing outer frame, and the threaded rod is connected to the clamping assembly after being rotated through the sealing rubber gasket.

[0007] Wherein, the clamping assembly includes two groups of extension plates and a connecting box, sliding openings are provided on both sides of the connecting box, and sliding plates are fixedly connected to the surfaces of the two groups of extension plates facing each other, and the two sliding plates are staggered. The sliding plates are inserted into the connecting box through the sliding openings, and the two groups of extension plates are slidably connected to the connecting box through the sliding plates; a worm gear is rotatably provided at the center position of the connecting box, and second racks are provided on the side walls facing each other of the two sliding plates, and the two sides of the worm gear are respectively meshed with the two second racks, and the threaded rod rotates through the connecting box and is connected to the center of the worm gear.

[0008] Wherein, placement grooves are provided on the upper and lower surfaces of the sealing rubber pad, and the ends of the upper flue and the lower flue are arranged in the placement grooves.

[0009] Wherein, a structural support frame is arranged inside the sealing rubber pad, and the structural support frame is rotatably connected to the threaded rod, and the structural support frame provides stable support for the upper flue.

[0010] The utility model has the following beneficial effects:

[0011] The utility model clamps the upper flue and the lower flue through the cooperation of the sealing outer frame and the clamping assembly, and further seals through the sealing rubber pad between the upper flue and the lower flue. The sealing rubber pad is squeezed by the clamping assembly to further adhere to the surface of the upper flue and the lower flue, so that the gap between the upper flue and the lower flue is tighter, thereby achieving a sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a half-section diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the clamping assembly of the utility model.

[0014] The reference numerals in the figure are as follows:

[0015] 1. Upper flue; 2. Lower flue; 3. Sealing outer frame; 4. Sealing rubber pad; 5. Threaded rod; 6. Connecting box; 7. Structural support frame; 41. Placement groove; 61. Extension plate; 62. Sliding plate; 63. Worm gear; 64. Second rack. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] See also Figure 1 to Figure 2 , the utility model provides a technical solution:

[0018] A finished sealing device for flue jointing comprises an upper flue 1 and a lower flue 2, wherein the upper flue 1 and the lower flue 2 are sealed and connected via a joint device, wherein the joint device comprises a sealing outer frame 3, wherein the inner wall of the sealing outer frame 3 is arranged to fit the outer wall of the upper flue 1 and the lower flue 2; a circle of sealing rubber pad 4 is arranged on the inner wall surface of the sealing outer frame 3, and for example, the upper flue 1 and the lower flue 2 are rectangular, the sealing outer frame 3 is a rectangular frame, and the sealing rubber pad 4 is also rectangular as a whole, and a structural support frame 7 is arranged inside the sealing rubber pad 4, and when the upper flue 1 is pressed on the sealing rubber pad 4, the pressure acts on the structural support frame 7, so that the jointing of the upper flue 1 and the lower flue 2 can be stabilized. , any existing device can also be used to make the connection between the two stable, avoiding the instability caused by the upper flue 1 and the lower flue 2 being supported only by the soft sealing pad 4; a clamping assembly is provided on the inner side of each side of the sealing pad 4, and a threaded rod 5 is threadedly connected to each side of the sealing outer frame 3, and the threaded rod 5 is rotated through the sealing pad 4 and connected to the clamping assembly, and the clamping assembly can be squeezed toward the sealing pad 4 by rotating the threaded rod 5, thereby causing the sealing pad 4 to deform, so that the sealing pad 4 and the upper flue 1 and the lower flue 2 are more closely fitted, which can prevent the smoke in the flue from escaping and realize the sealed connection between the upper flue 1 and the lower flue 2;

[0019] The clamping assembly includes two groups of extension plates 61 and a connection box 6. Sliding openings are provided on both sides of the connection box 6. Sliding plates 62 are fixedly connected to the surfaces of the two groups of extension plates 61 facing each other. The two sliding plates 62 are staggered. The sliding plates 62 are inserted into the connection box 6 through the sliding openings. The two groups of extension plates 61 are slidably connected to the connection box 6 through the sliding plates 62. A worm gear 63 is rotatably provided at the center of the connection box 6. A second rack 64 is provided on the wall of the two sliding plates 62 facing each other. The two sides of the worm gear 63 are respectively connected to the two first racks 64. The two racks 64 are meshed, and the threaded rod 5 rotates through the connection box 6 and is connected to the center of the worm gear 63; by rotating the threaded rod 5, the worm gear 63 is driven to rotate, and at this time, the two sliding plates 62 move in opposite directions, driving the extension plate 61 to extend until the extension plate 61 extends to the inner wall of the upper flue 1 and the lower flue 2 or abuts against the extension plate 61 on the other side, so that the sealing gasket 4 inside the upper flue 1 and the lower flue 2 can be squeezed by the clamping assembly, which can ensure that the internal smoke does not overflow;

[0020] It is worth mentioning that the thickness of the connecting box 6 is relatively thin to ensure that the extension plate 61 can touch the inner side of the sealing pad 4 when it is extended. The sealing pad 4 can be made of any elastic and waterproof material such as silicone, and due to the elasticity of the sealing pad 4, the sealing pad 4 will pop out toward the center of the flue when the extension plate 61 is not extended. Therefore, the extension plate 61 can touch the inner side of the sealing pad 4 when it is extended.

[0021] As a preferred embodiment, the threaded rod 5 is connected to the worm gear 63. When the threaded rod 5 is rotated to drive the worm gear 63 to rotate until the extension plate 61 extends to the inner walls of the upper flue 1 and the lower flue 2 or abuts against the extension plate 61 on the other side, the connection relationship between the threaded rod 5 and the worm gear 63 will be converted from a fixed connection to a rotating connection, that is, under a small force, the threaded rod 5 can drive the worm gear 63 to rotate, and when the worm gear 63 is unable to continue to rotate due to the resistance of the extension plate 61, the threaded rod 5 and the worm gear 63 are converted into a rotating connection relationship; it can be ensured that when the threaded rod 5 is rotated to drive the worm gear 63 to rotate until the extension plate 61 extends to the inner walls of the upper flue 1 and the lower flue 2 or abuts against the extension plate 61 on the other side, the threaded rod 5 can continue to be rotated to drive the clamping assembly to tightly fit the sealing gasket 4.

[0022] The upper and lower surfaces of the sealing pad 4 are both provided with placement grooves 41, and the ends of the upper flue 1 and the lower flue 2 are arranged in the placement grooves 41, which can make the upper flue 1 and the lower flue 2 fit more closely with the sealing pad 4 and prevent smoke from escaping through the sealing pad 4.

[0023] The working principle of the above-mentioned flue butt joint finished product sealing device is as follows:

[0024] The docking device is placed on the lower flue 2, and then the upper flue 1 is placed on the sealing gasket 4. At this time, the inner wall of the sealing outer frame 3 fits the outer wall of the upper flue 1 and the lower flue 2. By rotating the threaded rod 5, the threaded rod 5 is driven to be screwed outward while the connecting box 6 is moved outward synchronously, so that the connecting box 6 squeezes the inner wall of the sealing gasket 4. Due to the elasticity of the sealing gasket 4, it will be squeezed and expanded to seal the upper flue 1 and the lower flue 2; at this time, by rotating the threaded rod 5, the worm gear 63 is also driven to rotate, and the two sliding plates 62 move in opposite directions, driving the extension plate 61 to extend until the extension plate 61 extends to the inner wall of the upper flue 1 and the lower flue 2 or abuts against the extension plate 61 on the other side, so that the sealing gaskets 4 inside the upper flue 1 and the lower flue 2 are squeezed by the clamping assembly.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A flue joint finished product sealing device, characterized in that: The invention comprises an upper flue (1) and a lower flue (2), wherein the upper flue (1) and the lower flue (2) are sealed and connected via a docking device, wherein the docking device comprises a sealing outer frame (3), wherein the inner wall of the sealing outer frame (3) is arranged to fit the outer walls of the upper flue (1) and the lower flue (2); a circle of sealing rubber pad (4) is arranged on the inner wall surface of the sealing outer frame (3), and a clamping assembly is arranged on the inner side of each edge of the sealing rubber pad (4); a threaded rod (5) is threadedly connected to each edge of the sealing outer frame (3), and the threaded rod (5) is connected to the clamping assembly after being rotated through the sealing rubber pad (4).

2. A flue joint finished product sealing device as claimed in claim 1, characterized in that: The clamping assembly comprises two groups of extension plates (61) and a connection box (6), wherein sliding openings are arranged on both sides of the connection box (6), and sliding plates (62) are fixedly connected to the surfaces of the two groups of extension plates (61) facing each other, and the two sliding plates (62) are arranged alternately, and the sliding plates (62) are inserted into the connection box (6) through the sliding openings, and the two groups of extension plates (61) are slidingly connected to the connection box (6) through the sliding plates (62); a worm gear (63) is rotatably arranged at the center position of the connection box (6), and second racks (64) are arranged on the side walls of the two sliding plates (62) facing each other, and the two sides of the worm gear (63) are respectively meshed with the two second racks (64), and the threaded rod (5) rotates through the connection box (6) and is connected to the center of the worm gear (63).

3. A flue joint finished product sealing device as claimed in claim 1, characterized in that: The upper and lower surfaces of the sealing rubber pad (4) are both provided with placement grooves (41), and the ends of the upper flue (1) and the lower flue (2) are arranged in the placement grooves (41).

4. A flue joint finished product sealing device as claimed in claim 1, characterized in that: A structural support frame (7) is arranged inside the sealing rubber pad (4), and the structural support frame (7) is rotatably connected to the threaded rod (5). The structural support frame (7) provides stable support for the upper flue (1).

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