Air leakage prevention structure of building ventilating duct

Abstract

The utility model discloses an anti-air-leakage structure of a building ventilating duct, and relates to the technical field of ventilating ducts, the anti-air-leakage structure of the building ventilating duct comprises a first ventilating duct and a second ventilating duct, one side of the first ventilating duct close to the second ventilating duct is fixedly provided with a second connecting sheet, and the second connecting sheet is provided with a sealing groove. A first connecting piece is fixedly installed on the side, close to the first ventilating pipeline, of the second ventilating pipeline, and a sealing gasket is fixedly installed on the first connecting piece, so that the second connecting piece and the first connecting piece move relatively, and then the second connecting piece and the first connecting piece are clamped and fixed; the connecting position of the first ventilation pipeline and the second ventilation pipeline is conveniently sealed, then the air leakage phenomenon is prevented, the ventilation effect is improved, the sealing performance of the device is improved, meanwhile, the first ventilation pipeline and the second ventilation pipeline are conveniently installed, and the installation speed is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation pipeline technical field, especially a building ventilation pipeline leak protection structure. BACKGROUND

[0002] Ventilation pipeline is the metal or nonmetal pipeline for ventilation and air conditioning engineering of industrial and civil buildings, and is a kind of municipal infrastructure for making air circulation and reducing harmful gas concentration. The plate, profile and other main finished product materials used for making and installing air duct shall meet the provisions of design and relevant product national current standard, and application factory inspection qualified certificate shall be provided, and the materials shall be accepted according to the national current relevant standard when entering the field.

[0003] Some existing ventilation pipelines are usually sealed at the connecting portion by sealing pads when installing, and then air leakage is caused due to aging of the sealing pads, and the existing ventilation pipeline cannot be well protected, and then air leakage is caused, and the use effect of the ventilation pipeline is poor.

[0004] In view of the above problems, a building ventilation pipeline leak protection structure is provided. UTILITY MODEL CONTENT

[0005] The utility model discloses a building ventilation pipeline leak protection structure, and can solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a building ventilation pipeline leak protection structure, including first ventilation pipeline and second ventilation pipeline, the side of first ventilation pipeline close to second ventilation pipeline is fixedly installed with second connecting piece, and the second connecting piece is opened with sealing groove, the side of second ventilation pipeline close to first ventilation pipeline is fixedly installed with first connecting piece, and the first connecting piece is fixedly installed with sealing pad, and the sealing pad is slidably connected in the sealing groove, and the first ventilation pipeline and second ventilation pipeline are slidably connected with first protective cover and second protective cover, the first protective cover and second protective cover are symmetrically arranged, and the first connecting piece and second connecting piece are located in the inside of first protective cover and second protective cover.

[0007] Preferably, the inside of the first protective cover and second protective cover is fixedly installed with extrusion plate, and one end of the two extrusion plates is inclined.

[0008] Preferably, the top of the second protective cover is fixedly installed with connecting block, the top of the first protective cover is fixedly installed with fixed block, and the connecting block is slidably connected in the inside of the fixed block.

[0009] Preferably, the inside of the fixed block is rotationally connected with a rotating shaft, a winding wheel is fixedly sleeved on the surface of the rotating shaft, a connecting pull rope is wound on the winding wheel, and one end of the connecting pull rope close to the connecting block is fixedly connected with the connecting block.

[0010] Preferably, a ratchet wheel is fixedly sleeved on the surface of the rotating shaft, and a connecting rotating shaft is rotationally connected in the inside of the fixed block and engaged with the ratchet wheel.

[0011] Preferably, one end of the connecting rotating shaft rotationally penetrates through the fixed block and extends to the outside of the fixed block, a torsion spring is movably sleeved on the surface of the connecting rotating shaft, and one end of the torsion spring close to the pawl is fixedly connected with the pawl.

[0012] Preferably, the other end of the torsion spring away from the pawl is fixedly connected with the inside of the fixed block.

[0013] Compared with the prior art, the building ventilation pipeline air leakage prevention structure has the following beneficial effects:

[0014] (1), the building ventilation pipeline air leakage prevention structure, the relative movement of the second connecting piece and the first connecting piece, and then the second connecting piece and the first connecting piece are clamped and fixed, and the first protective cover and the second protective cover are arranged, so that the first ventilation pipeline and the second ventilation pipeline are sealed, so that the phenomenon of air leakage is prevented, the ventilation effect is improved, the sealing property of the device is improved, and the first ventilation pipeline and the second ventilation pipeline are convenient to install, and the installation speed is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model is further illustrated below in combination with the drawings and examples:

[0016] Figure 1 It is the structural schematic diagram of the building ventilation pipeline air leakage prevention structure of the utility model;

[0017] Figure 2 It is the schematic diagram of the first protective cover of the utility model;

[0018] Figure 3 It is the utility model Figure 2 It is the enlarged schematic diagram of A in the utility model;

[0019] Figure 4 It is the inside schematic diagram of the fixed block of the utility model.

[0020] The drawings show that: 1, the first ventilation pipeline; 2, the second ventilation pipeline; 3, the first connecting piece; 4, the sealing pad; 5, the second connecting piece; 6, the sealing groove; 7, the first protective cover; 8, the second protective cover; 9, the fixed block; 10, the rotating shaft; 11, the connecting block; 12, the extrusion plate; 13, the pawl; 14, the ratchet wheel; 15, the connecting rotating shaft; 16, the torsion spring; 17, the winding wheel; 18, the connecting pull rope. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0022] In order to further understand the content of the present application, the present application will be described in detail with reference to the drawings.

[0023] Please refer to Figures 1-4 The present application provides a technical solution: a building ventilation pipeline air leakage prevention structure, comprising a first ventilation pipeline 1 and a second ventilation pipeline 2, the first ventilation pipeline 1 is fixedly installed with a second connecting sheet 5 on one side close to the second ventilation pipeline 2, the second connecting sheet 5 is provided with a sealing groove 6, the second ventilation pipeline 2 is fixedly installed with a first connecting sheet 3 on one side close to the first ventilation pipeline 1, the first connecting sheet 3 is fixedly installed with a sealing pad 4, and the sealing pad 4 is slidably connected inside the sealing groove 6.

[0024] Through the setting of the sealing pad 4 and the sealing groove 6, the sealing pad 4 can be inserted into the inside of the sealing groove 6 for sealing when the first ventilation pipeline 1 and the second ventilation pipeline 2 are butt-jointed and installed, thereby preventing air leakage and improving the sealing performance when the first ventilation pipeline 1 and the second ventilation pipeline 2 are connected.

[0025] The first ventilation pipeline 1 and the second ventilation pipeline 2 are slidably connected with a first protective cover 7 and a second protective cover 8, the first protective cover 7 and the second protective cover 8 are symmetrically arranged, the first connecting sheet 3 and the second connecting sheet 5 are located inside the first protective cover 7 and the second protective cover 8, the first protective cover 7 and the second protective cover 8 are fixedly installed with an extrusion plate 12 inside, and one end of the two extrusion plates 12 is inclined.

[0026] The first ventilation pipe 1 is fixedly installed with the second connecting plates 5 on both sides, the second ventilation pipe 2 is fixedly installed with the first connecting plates 3 on both sides, then the second protective cover 8 and the first protective cover 7 are aligned with the second connecting plates 5 and the first connecting plates 3, then the first protective cover 7 and the second protective cover 8 extrude the first connecting plates 3 and the second connecting plates 5 through the two extrusion plates 12, then the second connecting plates 5 and the first connecting plates 3 are relatively moved, then the second connecting plates 5 and the first connecting plates 3 are clamped and fixed, at the same time, the first ventilation pipe 1 and the second ventilation pipe 2 are sealed at the connecting position through the first protective cover 7 and the second protective cover 8, then the air leakage phenomenon is prevented, the ventilation effect is improved, the sealing performance of the device is improved, and the first ventilation pipe 1 and the second ventilation pipe 2 are conveniently installed, and the installation speed is improved.

[0027] The top of the second protective cover 8 is fixedly installed with a connecting block 11, the top of the first protective cover 7 is fixedly installed with a fixed block 9, the connecting block 11 is slidably connected in the fixed block 9, a rotating shaft 10 is rotatably connected in the fixed block 9, a winding wheel 17 is fixedly sleeved on the surface of the rotating shaft 10, a connecting pull rope 18 is wound on the winding wheel 17, one end of the connecting pull rope 18 close to the connecting block 11 is fixedly connected with the connecting block 11, a ratchet wheel 14 is fixedly sleeved on the surface of the rotating shaft 10, a connecting rotating shaft 15 is rotatably connected in the fixed block 9, the connecting rotating shaft 15 is engaged with the ratchet wheel 14, one end of the connecting rotating shaft 15 rotatably penetrates through the fixed block 9 and extends to the outside of the fixed block 9, a torsion spring 16 is movably sleeved on the surface of the connecting rotating shaft 15, one end of the torsion spring 16 close to the pawl 13 is fixedly connected with the pawl 13, and the other end of the torsion spring 16 away from the pawl 13 is fixedly connected with the inside of the fixed block 9.

[0028] The rotating shaft 10 is rotated, the winding wheel 17 is driven to rotate, the connecting pull rope 18 is wound on the winding wheel 17, the connecting block 11 is moved, the connecting block 11 slides to the inside of the fixed block 9, the second protective cover 8 and the first protective cover 7 are relatively moved, then the first protective cover 7 and the second protective cover 8 are conveniently installed on the first ventilation pipe 1 and the second ventilation pipe 2, the convenience of installation of the first protective cover 7 and the second protective cover 8 is improved, the installation speed is improved, and the installation difficulty is reduced.

[0029] When the rotating shaft 10 rotates, the ratchet wheel 14 is driven to rotate, and then the ratchet wheel 14 extrudes the pawl 13, and then the pawl 13 rotates around the connecting rotating shaft 15, and the torsion spring 16 is deformed, and then through the arrangement of the ratchet wheel 14 and the pawl 13, the one-way rotation of the rotating shaft 10 is limited, and then the fixing of the rotating shaft 10 is realized, and then the first protective cover 7 and the second protective cover 8 are conveniently fixed, when the fixing is released, the connecting rotating shaft 15 is rotated, the pawl 13 is separated from the ratchet wheel 14, and then the rotating shaft 10 can rotate bidirectionally, and then the convenience of installation and disassembly of the first protective cover 7 and the second protective cover 8 is improved, and the installation and disassembly speed is improved.

[0030] Working principle:

[0031] Since the two sides of the first ventilation duct 1 are fixedly provided with the second connecting plates 5, and the two sides of the second ventilation duct 2 are fixedly provided with the first connecting plates 3, then the second protective cover 8 and the first protective cover 7 are aligned with the second connecting plates 5 and the first connecting plates 3, and then the first protective cover 7 and the second protective cover 8 extrude the first connecting plates 3 and the second connecting plates 5 through the two extrusion plates 12, and then the second connecting plates 5 and the first connecting plates 3 are relatively moved, and then the second connecting plates 5 and the first connecting plates 3 are clamped and fixed, and at the same time, through the arrangement of the first protective cover 7 and the second protective cover 8, the connection between the first ventilation duct 1 and the second ventilation duct 2 is conveniently sealed.

[0032] When the rotating shaft 10 rotates, the ratchet wheel 14 is driven to rotate, and then the ratchet wheel 14 extrudes the pawl 13, and then the pawl 13 rotates around the connecting rotating shaft 15, and the torsion spring 16 is deformed, and then through the arrangement of the ratchet wheel 14 and the pawl 13, the one-way rotation of the rotating shaft 10 is limited, and then the fixing of the rotating shaft 10 is realized, and then the first protective cover 7 and the second protective cover 8 are conveniently fixed, when the fixing is released, the connecting rotating shaft 15 is rotated, the pawl 13 is separated from the ratchet wheel 14, and then the rotating shaft 10 can rotate bidirectionally.

[0033] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A structure for preventing air leakage in a building ventilation duct, comprising a first ventilation duct (1) and a second ventilation duct (2), characterized in that: The first ventilation pipe (1) is fixedly installed with a second connecting sheet (5) near one side of the second ventilation pipe (2), a sealing groove (6) is formed in the second connecting sheet (5), the second ventilation pipe (2) is fixedly installed with a first connecting sheet (3) near one side of the first ventilation pipe (1), a sealing pad (4) is fixedly installed on the first connecting sheet (3), the sealing pad (4) is slidingly connected in the sealing groove (6), the first ventilation pipe (1) and the second ventilation pipe (2) are slidingly connected with a first protective cover (7) and a second protective cover (8), the first protective cover (7) and the second protective cover (8) are symmetrically arranged, and the first connecting sheet (3) and the second connecting sheet (5) are located in the first protective cover (7) and the second protective cover (8).

2. The air leakage prevention structure for a building ventilation duct according to claim 1, characterized by: The first protective cover (7) and the second protective cover (8) are fixedly installed with an extrusion plate (12), and one end of the two extrusion plates (12) is inclined.

3. The air leakage prevention structure for a building ventilation duct according to claim 2, characterized in that: The top of the second protective cover (8) is fixedly installed with a connecting block (11), the top of the first protective cover (7) is fixedly installed with a fixed block (9), and the connecting block (11) is slidingly connected in the fixed block (9).

4. The air leakage prevention structure for a building ventilation duct according to claim 3, characterized by: The fixed block (9) is rotatably connected with a rotating shaft (10), the surface of the rotating shaft (10) is fixedly sleeved with a winding wheel (17), the winding wheel (17) is wound with a connecting pull rope (18), and one end of the connecting pull rope (18) near the connecting block (11) is fixedly connected with the connecting block (11).

5. The air leakage prevention structure for a building ventilation duct according to claim 4, characterized in that: The surface of the rotating shaft (10) is fixedly sleeved with a ratchet wheel (14), and the fixed block (9) is rotatably connected with a connecting shaft (15), and the connecting shaft (15) is engaged with the ratchet wheel (14).

6. The air leakage prevention structure for a building ventilation duct according to claim 5, characterized in that: One end of the connecting shaft (15) rotatably penetrates through the fixed block (9) and extends to the outside of the fixed block (9), the surface of the connecting shaft (15) is movably sleeved with a torsion spring (16), and one end of the torsion spring (16) near the pawl (13) is fixedly connected with the pawl (13).

7. The air leakage prevention structure for a building ventilation duct according to claim 6, characterized in that: The end of the torsion spring (16) away from the pawl (13) is fixedly connected with the inside of the fixed block (9).

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