Building heating and ventilation pipeline connecting device

Abstract

The utility model discloses a building heating and ventilation pipeline connecting device which comprises a heating and ventilation pipeline body, a first outer connecting sleeve and a second outer connecting sleeve, the second outer connecting sleeve is installed on the outer side of one end of the heating and ventilation pipeline body, and the first outer connecting sleeve is installed on the outer side of the end, away from the second outer connecting sleeve, of the heating and ventilation pipeline body. According to the heating and ventilation pipeline, the sealing connecting insertion pipe, the first outer connecting sleeve and the second outer connecting sleeve are installed, when the heating and ventilation pipeline is used, the two sets of heating and ventilation pipeline bodies are connected, the sealing connecting insertion pipe on one set of heating and ventilation pipeline bodies is inserted into the sealing connecting insertion groove in the other set of heating and ventilation pipeline bodies, and then the two sets of heating and ventilation pipeline bodies can be connected together; and the connecting position of the two sets of heating and ventilation pipeline bodies can be shielded through the sealing connecting insertion pipe, fluid is prevented from leaking from the connecting position of the two sets of heating and ventilation pipeline bodies, and the sealing performance can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building HVAC equipment, in particular to a building HVAC pipeline connecting device. Background Art

[0002] HVAC is an integral part of a building, including heating, ventilation, and air conditioning. HVAC pipes are one of the main components of a building's HVAC system. When multiple groups of HVAC pipes are directly connected to each other, they need to be firmly fixed together through connecting devices.

[0003] For example, the utility model: "Building HVAC pipe connection device", with the announcement number: "CN211475145U", connects multiple pipes through threads, which makes disassembly and installation easy, increases the convenience of laying building HVAC pipes, improves work efficiency, and the fixed sleeve strengthens the stability and protection of the pipe connection, avoids breakage and loosening of the connection, and improves structural stability. However, during the implementation of this patent, if the screw and nut fall off from the fixed sleeve due to rust, thread slippage, etc. after long-term use, the fixed sleeve cannot firmly fix the two groups of pipes, which greatly reduces its stability. Therefore, the present utility model provides a building HVAC pipe connection device for solving the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a building HVAC pipe connection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a building HVAC pipe connection device, comprising a HVAC pipe body, a first external connecting sleeve and a second external connecting sleeve, the second external connecting sleeve being installed on the outside of one end of the HVAC pipe body, and the first external connecting sleeve being installed on the outside of one end of the HVAC pipe body away from the second external connecting sleeve, a sealing connection slot being provided at the end of the first external connecting sleeve away from the second external connecting sleeve, and second fixing screw holes being provided on both sides of the first external connecting sleeve, the second fixing screw holes being connected to the sealing connection slot, and L-shaped mounting plates being installed on both sides of the first external connecting sleeve.

[0006] Preferably, a sealing connecting insert is installed at an edge of the second external connecting sleeve away from one end of the first external connecting sleeve.

[0007] Preferably, first fixing screw holes are provided on both sides of the sealed connecting pipe.

[0008] Preferably, the interiors of the second fixing screw holes are threadedly mounted with fixing bolts.

[0009] Preferably, the inside of the L-shaped mounting plate is provided with a mounting circular hole, and the inside of the mounting circular hole is installed with an inner mounting rod, the end of the inner mounting rod close to the first external connecting sleeve is installed with an anti-falling pressure plate, and the end of the first external connecting sleeve away from the anti-falling pressure plate is installed with a disassembly pull plate.

[0010] Preferably, a fixing spring is sleeved on the outer side of the inner mounting rod, one end of the fixing spring is connected to the L-shaped mounting plate, and the end of the fixing spring away from the L-shaped mounting plate is connected to the anti-falling pressure plate.

[0011] Preferably, the outer sides of the fixing springs are all provided with an anti-rust layer.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The building HVAC pipe connection device is equipped with a sealing connection insert, a first external connection sleeve, and a second external connection sleeve. When in use, two sets of HVAC pipe bodies are connected so that the sealing connection insert on one set of HVAC pipe bodies is inserted into the sealing connection slot on the other set of HVAC pipe bodies. The two sets of HVAC pipe bodies can be connected together, and the sealing connection insert can be used to cover the connection position of the two sets of HVAC pipe bodies to prevent fluid leakage from the connection position of the two sets of HVAC pipe bodies, which can effectively improve the sealing performance.

[0014] 2. The building HVAC pipe connection device is installed with fixing bolts. After the two sets of HVAC pipe bodies are connected, the first external connection sleeve and the second external connection sleeve are tightly fitted. The staff can screw the fixing bolts into the first fixing screw hole and the second fixing screw hole at the same time to fix the sealed connection insert into the sealed connection slot, so that the first external connection sleeve and the second external connection sleeve are tightly connected, and the two sets of HVAC pipe bodies can be firmly installed;

[0015] 3. The building HVAC pipe connection device is equipped with an anti-falling pressure plate, an inner mounting rod and a fixing spring. During use, the elastic action of the fixing spring pushes the anti-falling pressure plate to move, so that the anti-falling pressure plate is pressed on the fixing bolt. Even if the fixing bolt is loosened inside the second fixing screw hole due to rust, thread slippage, etc., the anti-falling pressure plate is used to limit it, which can prevent the second fixing screw hole from falling off from the first fixing screw hole and the second fixing screw hole, thereby preventing the sealed connection insert from detaching from the sealed connection slot. The two sets of HVAC pipe bodies can be firmly connected, and it has a double fixing structure and a better fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top cross-sectional schematic diagram of the utility model;

[0017] Figure 2 It is a top view schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the partial structure of two sets of HVAC pipe bodies in the connected state of the present invention;

[0019] Figure 4 This is a side sectional schematic diagram of the sealed connection cannula of the present invention.

[0020] In the figure: 1. Sealing connection plug; 2. HVAC pipe body; 3. First fixing screw hole; 4. L-shaped mounting plate; 5. Fixing bolt; 6. First external connecting sleeve; 7. Sealing connection slot; 8. Second external connecting sleeve; 9. Anti-falling pressure plate; 10. Mounting circular hole; 11. Disassembly pull plate; 12. Install inner rod; 13. Fixing spring; 14. Second fixing screw hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 The utility model provides an embodiment: a building HVAC pipe connection device, including a HVAC pipe body 2, a first external connecting sleeve 6 and a second external connecting sleeve 8, the second external connecting sleeve 8 is installed on the outside of one end of the HVAC pipe body 2, and the first external connecting sleeve 6 is installed on the outside of the end of the HVAC pipe body 2 away from the second external connecting sleeve 8, the first external connecting sleeve 6 is provided with a sealing connection slot 7 on the end away from the second external connecting sleeve 8, and second fixing screw holes 14 are provided on both sides of the first external connecting sleeve 6, the second fixing screw holes 14 are connected to the sealing connection slot 7, and L-shaped mounting plates 4 are installed on both sides of the first external connecting sleeve 6.

[0023] In this implementation:

[0024] Furthermore, a sealing connecting pipe 1 is installed at the edge of the second external connecting sleeve 8 away from one end of the first external connecting sleeve 6. During use, the sealing connecting pipe 1 blocks the connection position of the two sets of HVAC pipe bodies 2 to prevent fluid from leaking from the connection position of the two sets of HVAC pipe bodies 2, thereby effectively improving the sealing performance.

[0025] Furthermore, a first fixing screw hole 3 is provided on both sides of the sealing connecting pipe 1. When the first fixing screw hole 3 on the sealing connecting pipe 1 is moved to a position opposite to the second fixing screw hole 14, the first external connecting sleeve 6 and the second external connecting sleeve 8 are tightly fitted, and the two sets of HVAC pipe bodies 2 are tightly fitted.

[0026] Furthermore, the interior of the second fixing screw hole 14 is threadedly installed with a fixing bolt 5. The fixing bolt 5 is screwed into the second fixing screw hole 14 and the first fixing screw hole 3 at the same time. The sealing connecting pipe 1 is limited by the fixing bolt 5, so that the first external connecting sleeve 6 and the second external connecting sleeve 8 can be firmly installed, so that the two sets of HVAC pipe bodies 2 can be firmly connected.

[0027] Furthermore, the inside of the L-shaped mounting plate 4 is provided with a mounting circular hole 10, and the inside of the mounting circular hole 10 is installed with an mounting inner rod 12, and the end of the mounting inner rod 12 close to the first external connecting sleeve 6 is installed with an anti-falling pressure plate 9, and the end of the first external connecting sleeve 6 away from the anti-falling pressure plate 9 is installed with a disassembly pull plate 11. Even if the fixing bolt 5 is loosened in the second fixing screw hole 14 due to rust, thread slippage, etc., the anti-falling pressure plate 9 is used to limit it, and the second fixing screw hole 14 can be prevented from falling off from the first fixing screw hole 3 and the second fixing screw hole 14, thereby preventing the sealing connection pipe 1 from detaching from the sealing connection slot 7, and the two sets of HVAC pipe bodies 2 can be firmly connected. It has a double fixing structure and a better fixing effect.

[0028] Furthermore, a fixing spring 13 is sleeved on the outer side of the inner rod 12, one end of the fixing spring 13 is connected to the L-shaped mounting plate 4, and the end of the fixing spring 13 away from the L-shaped mounting plate 4 is connected to the anti-falling pressure plate 9. The elastic action of the fixing spring 13 pushes the anti-falling pressure plate 9 to move, so that the anti-falling pressure plate 9 is pressed on the fixing bolt 5.

[0029] Furthermore, the outer sides of the fixing springs 13 are all provided with an anti-rust layer, which is beneficial to extending the service life of the fixing springs 13 .

[0030] Working principle:

[0031] During installation, insert the sealing connection insert 1 on one set of HVAC pipe bodies 2 into the sealing connection slot 7 on the other set of HVAC pipe bodies 2. When the two sets of HVAC pipe bodies 2 are tightly fitted, the first external connection sleeve 6 and the second external connection sleeve 8 are tightly fitted. At this time, the first fixing screw hole 3 on the sealing connection insert 1 moves to a position facing the second fixing screw hole 14;

[0032] The staff can first pull the disassembly pull plate 11 upwards, and the disassembly pull plate 11 drives the anti-falling pressure plate 9 to move upwards by installing the inner rod 12, so that the anti-falling pressure plate 9 is away from the first external connecting sleeve 6, and the anti-falling pressure plate 9 compresses the fixing spring 13, and then the fixing bolt 5 can be screwed into the second fixing screw hole 14 and the first fixing screw hole 3 at the same time. By limiting the sealing connection insert 1 through the fixing bolt 5, the first external connecting sleeve 6 and the second external connecting sleeve 8 can be firmly installed, so that the two sets of HVAC pipe bodies 2 can be firmly connected as shown in FIG. Figure 3 As shown;

[0033] The staff loosens the disassembly pull plate 11. At this time, the elastic action of the fixing spring 13 pushes the anti-falling pressure plate 9 to move, so that the anti-falling pressure plate 9 presses on the fixing bolt 5.

[0034] During use, the connection position of the two sets of HVAC pipe bodies 2 is blocked by the sealing connection pipe 1 to prevent fluid from leaking from the connection position of the two sets of HVAC pipe bodies 2, which can effectively improve the sealing performance;

[0035] The anti-falling pressure plate 9 is pressed on the fixing bolt 5. Even if the fixing bolt 5 is loosened inside the second fixing screw hole 14 due to rust, thread slippage, etc., the anti-falling pressure plate 9 is used to limit it, and the second fixing screw hole 14 can be prevented from falling off from the first fixing screw hole 3 and the second fixing screw hole 14, thereby preventing the sealing connection pipe 1 from detaching from the sealing connection slot 7. The two sets of HVAC pipe bodies 2 can be firmly connected, and it has a double fixing structure and a better fixing effect.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A building HVAC pipe connection device, comprising a HVAC pipe body (2), a first external connection sleeve (6) and a second external connection sleeve (8), characterized in that: A second external connecting sleeve (8) is installed on the outer side of one end of the HVAC pipe body (2), and a first external connecting sleeve (6) is installed on the outer side of the end of the HVAC pipe body (2) away from the second external connecting sleeve (8), a sealing connection slot (7) is provided at the end of the first external connecting sleeve (6) away from the second external connecting sleeve (8), and second fixing screw holes (14) are provided on both sides of the first external connecting sleeve (6), and the second fixing screw holes (14) are both connected to the sealing connection slot (7), and L-shaped mounting plates (4) are installed on both sides of the first external connecting sleeve (6).

2. A building HVAC pipe connection device according to claim 1, characterized in that: A sealing connection insert (1) is installed at an edge position of the second external connection sleeve (8) away from one end of the first external connection sleeve (6).

3. A building HVAC pipe connection device according to claim 2, characterized in that: First fixing screw holes (3) are provided on both sides of the sealed connecting pipe (1).

4. A building HVAC pipe connection device according to claim 1, characterized in that: The interiors of the second fixing screw holes (14) are all threadedly mounted with fixing bolts (5).

5. A building HVAC pipe connection device according to claim 1, characterized in that: The L-shaped mounting plate (4) is provided with a mounting circular hole (10) inside, and a mounting inner rod (12) is installed inside the mounting circular hole (10), and an anti-falling pressure plate (9) is installed at one end of the mounting inner rod (12) close to the first external connecting sleeve (6), and a disassembly pull plate (11) is installed at one end of the first external connecting sleeve (6) away from the anti-falling pressure plate (9).

6. A building HVAC pipe connection device according to claim 5, characterized in that: The outer sides of the inner mounting rods (12) are sleeved with fixed springs (13), one end of the fixed springs (13) is connected to the L-shaped mounting plate (4), and the ends of the fixed springs (13) away from the L-shaped mounting plate (4) are connected to the anti-falling pressure plate (9).

7. A building HVAC pipe connection device according to claim 6, characterized in that: The outer sides of the fixing springs (13) are all provided with an anti-rust layer.

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