Connecting device for building heating and ventilation pipelines

Abstract

The utility model provides a connecting device for building heating and ventilation pipelines, which comprises a first pipeline, one side of the first pipeline is connected with a first sealing ring, one side of the first sealing ring is connected with a second sealing ring, one side of the second sealing ring is connected with a second pipeline, and the other side of the second pipeline is connected with a second pipeline. Positioning shells are connected to the two sides of the second pipeline, connecting assemblies are arranged in inner cavities of the positioning shells and used for conveniently connecting, mounting, maintaining and dismounting the first pipeline and the second pipeline, a through hole is formed in an inner cavity of the first pipeline, fixing blocks are connected to the two sides of the first pipeline, and each connecting assembly comprises two pull rings; pull rods are slidably inserted into inner cavities of the pull rings, and one sides of the pull rods penetrate into an inner cavity of the positioning shell and are connected with first clamping blocks. The connecting device for the heating and ventilation pipeline of the building solves the problem that an existing device does not have the function of conveniently installing, connecting and maintaining the heating and ventilation pipeline.

Description

Technical Field

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

[0002] HVAC is the name of a classification of work types in construction equipment, which mainly includes three aspects: heating, ventilation and air conditioning. The full name of HVAC in the subject classification is heating, gas supply, ventilation and air-conditioning engineering, which is an integral part of the building. The thickness and specifications of HVAC pipes can be changed according to requirements. Usually when connecting, the two ends of the air duct are always connected to the accessories. Under normal circumstances, there are no grooves at both ends of the HVAC pipes and they are equipped with sealing rings. The application scope of HVAC pipes is very wide, including purification system return air ducts, central air-conditioning ventilation ducts, industrial supply and exhaust ventilation ducts, environmental protection system suction and exhaust ducts, mining gas extraction pipes, mining rubberized cloth air ducts, etc., so the connection of HVAC pipes is also very important.

[0003] The authorization announcement number is: CN215294016U. The utility model discloses a connecting device for building HVAC pipes, including multiple HVAC pipe bodies and first flanges respectively arranged at both ends of the HVAC pipe bodies. Multiple HVAC pipe bodies are connected in pairs with connecting pieces, and second flanges are respectively arranged on both sides of the connecting piece. The second flange is sealed and connected to the first flange. A connecting frame is provided at the connecting piece. This connecting device for building HVAC pipes facilitates the sealed connection between pipes through the sealed connection between the first flange and the second flange. While connecting the pipes through the connecting piece, the dirt inside the pipes is cleaned and stored, which saves manpower and prevents pipe blockage, while reducing the number of times the connecting piece needs to be disassembled and assembled to prevent the sealing of the connecting piece from deteriorating.

[0004] The device facilitates the sealed connection between pipes by setting a sealed connection between the first flange and the second flange. The pipes are connected by the connecting piece, and dirt inside the pipes is cleaned and stored at the same time, which saves manpower and prevents pipe blockage, while reducing the number of times the connecting piece needs to be disassembled and assembled, and preventing the sealing performance of the connecting piece from deteriorating.

[0005] However, the existing pipeline connection method usually uses bolts or welding to connect and install the two pipelines. This fixing method is relatively traditional. Both the early installation and the later disassembly and maintenance will consume a lot of time, which not only increases the maintenance and installation working hours, but also increases the installation and maintenance costs to a certain extent. Therefore, the installation and connection are very inconvenient.

[0006] Therefore, it is necessary to provide a connection device for building HVAC pipes that is convenient for installation and connection of HVAC pipes and easy for maintenance to solve the above technical problems. Utility Model Content

[0007] In order to solve the above technical problems, the utility model provides a connecting device for building HVAC pipes.

[0008] The utility model provides a connecting device for building HVAC pipes, comprising a first pipe, a first sealing ring connected to one side of the first pipe, a second sealing ring connected to one side of the first sealing ring, a second pipe connected to one side of the second sealing ring, positioning shells connected to both sides of the second pipe, connecting components provided in the inner cavity of the positioning shells, the connecting components being used to facilitate the connection, installation, maintenance and disassembly of the first pipe and the second pipe, a through hole provided in the inner cavity of the first pipe, and fixing blocks connected to both sides of the first pipe.

[0009] In order to achieve the effect of convenient and quick connection of pipes, the utility model provides a connection device for building HVAC pipes. Preferably, the connection assembly includes two pull rings, the inner cavities of the pull rings are slidably inserted with pull rods, one side of the pull rods penetrates into the inner cavity of the positioning shell and is connected to a first clamping block, one side of the first clamping block is meshedly connected to the second clamping block, and one side of the second clamping block is connected to the first sealing ring.

[0010] In order to achieve the effect of buffering the movement of the first clamping block, the utility model provides a connecting device for building HVAC pipes. Preferably, the opposite sides of the two first clamping blocks are connected to buffer springs, and the opposite sides of the buffer springs are connected to the inner cavity of the positioning shell.

[0011] In order to achieve the effect of positioning the filter plate, the utility model provides a connection device for building HVAC pipes. Preferably, the filter plate is slidably inserted into the inner cavity of the through hole, positioning blocks are connected to both sides of the filter plate, nuts are connected to the inner cavities of the positioning blocks, and the bottoms of the nuts are threadedly connected to the fixing blocks.

[0012] In order to achieve the effect of reinforcing the positioning shell, the utility model provides a connecting device for building HVAC pipes. Preferably, one side of the positioning shell is connected to a positioning strip, and one side of the positioning strip is connected to the second pipe.

[0013] In order to achieve the effect of sealing connection of the first pipe, the utility model provides a connection device for building HVAC pipes. Preferably, one side of the second sealing ring is connected to a sealing tube, and one side of the sealing tube is slidably inserted into the inner cavity of the first pipe.

[0014] In order to achieve the effect of reinforcing and positioning the second clamping block, the utility model provides a connecting device for building HVAC pipes. Preferably, both sides of the second clamping block are connected to reinforcement blocks, and one side of the reinforcement blocks is connected to the first sealing ring.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The connection device for building HVAC pipes can effectively install, connect and disassemble and maintain pipes by setting connection components, which solves the problem that the existing pipe connection method usually uses bolts or welding to connect and install two pipes. This fixing method is relatively traditional, and both the early installation and later disassembly and maintenance will consume a lot of time, which not only increases the maintenance and installation working hours, but also increases the installation and maintenance costs to a certain extent. Therefore, the installation and connection are very inconvenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a preferred embodiment of a connecting device for building HVAC pipes provided by the utility model;

[0018] Figure 2 for Figure 1 The structural schematic diagram shown in the figure;

[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the connection components shown.

[0020] Numbers in the figure: 1. first pipe; 2. first sealing ring; 3. second sealing ring; 4. second pipe; 5. positioning shell; 6. connecting assembly; 61. pull ring; 62. pull rod; 63. first clamping block; 64. second clamping block; 65. buffer spring; 7. through hole; 8. fixing block; 9. filter plate; 10. positioning block; 11. nut; 12. positioning strip; 13. sealing tube; 14. reinforcement block. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 and Figure 3 ,in Figure 1 A structural schematic diagram of a preferred embodiment of a connecting device for building HVAC pipes provided by the utility model; Figure 2 for Figure 1 The structural schematic diagram shown in the figure; Figure 3 for Figure 1A structural schematic diagram of the connection assembly shown. A connection device for building HVAC pipes, comprising a first pipe 1, a first sealing ring 2 is connected to one side of the first pipe 1, a second sealing ring 3 is connected to one side of the first sealing ring 2, a second pipe 4 is connected to one side of the second sealing ring 3, both sides of the second pipe 4 are connected to positioning shells 5, the inner cavity of the positioning shells 5 is provided with connection assemblies 6, the connection assembly 6 is used to facilitate the connection, installation, maintenance and disassembly of the first pipe 1 and the second pipe 4, the inner cavity of the first pipe 1 is provided with a through hole 7, and both sides of the first pipe 1 are connected to fixing blocks 8.

[0023] In the specific implementation process, Figure 1 Figure 2 and Figure 3 As shown, the connecting assembly 6 includes two pull rings 61, and the inner cavities of the pull rings 61 are slidably inserted with pull rods 62, one side of the pull rods 62 penetrates into the inner cavity of the positioning shell 5 and is connected to the first clamping block 63, one side of the first clamping block 63 is meshedly connected with the second clamping block 64, and one side of the second clamping block 64 is connected to the first sealing ring 2; when the first pipe 1 and the second pipe 4 need to be connected, first move the first pipe 1, and drive the second clamping block 64 to move while the first pipe 1 moves, and slowly insert the second clamping block 64 into the inner cavity of the positioning shell 5 while the second clamping block 64 moves, and then the second clamping block 64 squeezes the first clamping block 63, and at this time the first clamping block 63 is forced to move in the opposite direction, and then the second clamping block 64 is clamped into one side of the first clamping block 63, so that the first pipe 1 and the second pipe 4 can be conveniently and quickly connected and installed.

[0024] refer to Figure 3 As shown, the opposite sides of the two first clamping blocks 63 are connected with buffer springs 65, and the opposite sides of the buffer springs 65 are connected to the inner cavity of the positioning shell 5; the connection between the buffer springs 65 and the positioning shell 5 has the effect of buffering the movement of the first clamping blocks 63 when moving.

[0025] refer to Figure 1 and Figure 2 As shown, a filter plate 9 is slidably inserted into the inner cavity of the through hole 7, positioning blocks 10 are connected to both sides of the filter plate 9, nuts 11 are connected to the inner cavities of the positioning blocks 10, and the bottoms of the nuts 11 are threadedly connected to the fixing blocks 8; the connection between the nuts 11 and the fixing blocks 8 achieves the effect of positioning the filter plate 9.

[0026] refer to Figure 3 As shown, one side of the positioning shell 5 is connected to a positioning bar 12, and one side of the positioning bar 12 is connected to the second pipe 4; the connection between the positioning bar 12 and the second pipe 4 achieves the effect of positioning and reinforcing the positioning shell 5.

[0027] refer to Figure 2As shown, one side of the second sealing ring 3 is connected to a sealing tube 13, and one side of the sealing tube 13 is slidably inserted into the inner cavity of the first pipe 1; the connection between the sealing tube 13 and the first pipe 1 achieves the effect of sealing and reinforcing the second pipe 4.

[0028] refer to Figure 3 As shown, both sides of the second clamping block 64 are connected with reinforcement blocks 14, and one side of the reinforcement blocks 14 is connected to the first sealing ring 2; the connection between the reinforcement blocks 14 and the first sealing ring 2 has the effect of reinforcing and supporting the second clamping block 64.

[0029] It should be noted that: the first pipe 1 and the first sealing ring 2 are a cast integral part, the second sealing ring 3 and the second pipe 4 are a cast integral part, the second pipe 4 is bolted to the positioning shell 5, the pull rod 62 is slidably inserted in the inner cavity of the positioning shell 5, the through hole 7 is opened on the first pipe 1, the first pipe 1 is welded and fixed to the fixing block 8, the pull ring 61 is slidably inserted on the pull rod 62, the pull rod 62 is bolted to the first clamping block 63, the first clamping block 63 is meshed and connected with the second clamping block 64, the second clamping block 64 is bolted to the first sealing ring 2, and the first clamping block 63 is connected to the buffer spring 6 5 is welded and fixed, the buffer spring 65 is welded and fixed to the positioning shell 5, the filter plate 9 is slidably inserted in the through hole 7, the filter plate 9 and the positioning block 10 are a cast-in-one piece, the positioning block 10 is threadedly connected to the nut 11, the nut 11 is threadedly connected to the fixing block 8, the positioning shell 5 is welded and fixed to the positioning strip 12, the positioning strip 12 is bolted to the second pipe 4, the second sealing ring 3 and the sealing tube 13 are a cast-in-one piece, the sealing tube 13 is slidably inserted in the inner cavity of the first pipe 1, the second clamping block 64 is welded and fixed to the reinforcement block 14, and the reinforcement block 14 is bolted to the first sealing ring 2.

[0030] The working principle of a connecting device for building HVAC pipes provided by the utility model is as follows:

[0031] When in use, when the first pipeline 1 and the second pipeline 4 need to be connected, the first pipeline 1 is first moved, and the second clamping block 64 is driven to move while the first pipeline 1 moves. The second clamping block 64 is slowly inserted into the inner cavity of the positioning shell 5 while moving. Then the second clamping block 64 squeezes the first clamping block 63. At this time, the first clamping block 63 is forced to move in the opposite direction. Then the first clamping block 63 is buffered by the buffer spring 65 while moving. Then the second clamping block 64 is stuck in one side of the first clamping block 63, so that the first pipeline 1 and the second pipeline 4 can be connected and installed conveniently and quickly, and then the installed pipelines are used to transport gas. Finally, impurities in the gas can be filtered through the filter plate 9.

[0032] 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 connecting device for building HVAC pipes, characterized in that: The invention comprises a first pipeline (1), one side of the first pipeline (1) is connected to a first sealing ring (2), one side of the first sealing ring (2) is connected to a second sealing ring (3), one side of the second sealing ring (3) is connected to a second pipeline (4), both sides of the second pipeline (4) are connected to a positioning shell (5), the inner cavity of the positioning shell (5) is provided with a connecting component (6), the connecting component (6) is used to facilitate the connection, installation, maintenance and disassembly of the first pipeline (1) and the second pipeline (4), the inner cavity of the first pipeline (1) is provided with a through hole (7), and both sides of the first pipeline (1) are connected to a fixing block (8).

2. A connecting device for building HVAC pipes according to claim 1, characterized in that: The connecting assembly (6) includes two pull rings (61), and a pull rod (62) is slidably inserted into the inner cavity of the pull ring (61). One side of the pull rod (62) penetrates into the inner cavity of the positioning shell (5) and is connected to a first clamping block (63). One side of the first clamping block (63) is meshedly connected to a second clamping block (64), and one side of the second clamping block (64) is connected to the first sealing ring (2).

3. A connecting device for building HVAC pipes according to claim 2, characterized in that: The opposite sides of the two first clamping blocks (63) are connected to buffer springs (65), and the opposite sides of the buffer springs (65) are connected to the inner cavity of the positioning shell (5).

4. A connecting device for building HVAC pipes according to claim 1, characterized in that: A filter plate (9) is slidably inserted into the inner cavity of the through hole (7), positioning blocks (10) are connected to both sides of the filter plate (9), nuts (11) are connected to the inner cavity of the positioning blocks (10), and the bottoms of the nuts (11) are threadedly connected to the fixing blocks (8).

5. A connecting device for building HVAC pipes according to claim 1, characterized in that: One side of the positioning shell (5) is connected to a positioning strip (12), and one side of the positioning strip (12) is connected to the second pipe (4).

6. A connecting device for building HVAC pipes according to claim 1, characterized in that: One side of the second sealing ring (3) is connected to a sealing tube (13), and one side of the sealing tube (13) is slidably inserted into the inner cavity of the first pipeline (1).

7. A connecting device for building HVAC pipes according to claim 2, characterized in that: Both sides of the second clamping block (64) are connected to reinforcement blocks (14), and one side of the reinforcement block (14) is connected to the first sealing ring (2).

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