Quick dismounting joint for ventilating duct

Abstract

The utility model discloses a quick dismounting joint for a ventilating duct, which is applied to the field of ventilating ducts and comprises a connecting pipe, the inner wall of the connecting pipe is rotatably sleeved with a bent pipe, the surface of the connecting pipe is fixedly sleeved with a fixing ring, and the surface of the bent pipe is fixedly sleeved with a limiting ring; by moving the sliding ring, the sliding ring moves to drive the fixing rod to move, so that the fixing rod is separated from the adjusting hole, then the elbow is rotated to a required position, the sliding ring is loosened, the sliding ring drives the fixing rod to be inserted into the adjusting hole under the action of the first spring, and the fixing rod is fixed, the purpose of conveniently adjusting the direction can be achieved, the workload is reduced, and the working efficiency is improved. By means of the mode that the sliding barrel is moved to enable the trapezoid-shaped groove to move, the trapezoid-shaped groove moves to enable the steel ball to enter the trapezoid-shaped groove and be disengaged from the fixing groove in a clamping mode, and the air pipe is taken down, the purpose of being convenient to assemble and disassemble can be achieved, the workload is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation ducts, and in particular to a quick-disassembly connector for ventilation ducts. Background Technology

[0002] A search of Chinese patents revealed publication number CN212107354U, which discloses a duct connector comprising a seal, an mounting component, and a pair of frames. Each frame includes a vertical section and a horizontal section. The vertical section is located on the inner ring of the frame, which is used to fit a duct. The vertical and horizontal sections are connected in an "L" shape. A sealing groove is provided at the bottom of the horizontal section, and the seal is installed within the sealing groove. The pair of frames are connected as a single duct connector via the mounting component. The frame is a rectangular or circular ring. Multiple mounting holes are provided on the horizontal section, spaced around the vertical section, and the mounting component is installed within these holes. The design is simple, easy to manufacture, and provides a good sealing effect. It uses a universal seal, facilitating seal replacement. Multiple connection holes on the duct connector facilitate installation and connection between the duct connector and the duct.

[0003] Existing ventilation duct joints are not convenient for directional adjustment. Generally, the direction of the duct joint is fixed. During use, if the duct joint needs to be adjusted, it needs to be disassembled, adjusted, and then reassembled. The adjustment process is cumbersome, increases workload, and reduces adjustment efficiency. It is also inconvenient to install and disassemble. Generally, duct joints are fixed by multiple bolts. When installing and disassembling them, tools are required, which is also cumbersome, increases workload, and reduces work efficiency. In order to solve the above problems, we propose a quick-disassembly joint for ventilation ducts. Utility Model Content

[0004] The purpose of this invention is to provide a quick-disassembly connector for ventilation ducts, which has the advantages of easy direction adjustment and easy assembly and disassembly.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a quick-disassembly connector for ventilation ducts, comprising a connecting pipe, a bent pipe rotatably sleeved on the inner wall of the connecting pipe, a fixed ring fixedly sleeved on the surface of the connecting pipe, a limiting ring fixedly sleeved on the surface of the bent pipe, a sliding ring slidably sleeved on the surface of the bent pipe, a first spring provided between the limiting ring and the sliding ring, and the first spring sleeved on the surface of the bent pipe, a fixed rod bolted to the surface of the sliding ring, and an adjustment hole provided on the surface of the fixed ring, and the adjustment hole slidably sleeved with the fixed rod.

[0006] By adopting the above technical solution, the sliding ring is moved, which drives the fixed rod to move, causing the fixed rod to disengage from the adjustment hole. Then, the elbow is rotated to the required position, the sliding ring is released, and the sliding ring, under the action of the first spring, drives the fixed rod to be inserted into the adjustment hole to fix it. This method can facilitate the adjustment of direction, reduce the workload, and improve practicality.

[0007] The present invention is further configured such that: a duct is slidably sleeved on the inner wall of the bent pipe, a slide cylinder is slidably sleeved on the surface of the bent pipe, a second spring is provided between the slide cylinder and the surface of the bent pipe, and the second spring is sleeved on the surface of the bent pipe; a trapezoidal groove is provided on the inner wall of the slide cylinder; a steel ball is provided on the inner wall of the bent pipe; and a fixing groove is provided on the surface of the duct, and the fixing groove is engaged with the steel ball.

[0008] By adopting the above technical solution, the trapezoidal groove is moved by moving the sliding cylinder. The movement of the trapezoidal groove causes the steel ball to enter the trapezoidal groove and disengage from the fixed groove, thus removing the air duct. This method facilitates assembly and disassembly, reduces workload, and improves work efficiency.

[0009] The present invention is further configured such that the surfaces of the slip ring and the slide cylinder are provided with anti-slip texture.

[0010] By adopting the above technical solution, anti-slip texture is set to prevent hand slippage and facilitate operation.

[0011] The present invention is further configured such that the surface of the connecting pipe is provided with connecting threads.

[0012] The above technical solution, with its threaded connection, facilitates installation.

[0013] The present invention is further provided with a sealing ring between the connecting pipe and the bend.

[0014] By adopting the above technical solution, a sealing ring is installed to prevent air leakage.

[0015] The present invention is further configured such that: a protrusion is bolted to the inner wall of the slip ring, and a sliding groove is formed on the surface of the bent pipe, and the protrusion is slidably connected to the sliding groove.

[0016] By adopting the above technical solution, protrusions and grooves are set to prevent the slip ring from rotating and improve stability.

[0017] The present invention is further provided with a sealing gasket between the inner wall of the air duct and the bend.

[0018] By adopting the above technical solution, a sealing gasket is set to prevent air leakage and improve the sealing performance.

[0019] The present invention is further configured such that one end of the fixing rod is arc-shaped.

[0020] By adopting the above technical solution, one end of the fixing rod is set to be arc-shaped, which makes it easy to insert into the adjustment hole and facilitates use.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. This utility model uses a movable slip ring, which moves the fixed rod to disengage it from the adjustment hole. Then, the elbow is rotated to the desired position, the slip ring is released, and the slip ring, under the action of the first spring, moves the fixed rod into the adjustment hole to fix it. This method can facilitate the adjustment of direction, reduce workload, and improve practicality.

[0023] 2. This utility model uses a movable sliding cylinder to move the trapezoidal groove, which in turn causes the steel ball to enter the trapezoidal groove and disengage from the fixed groove, thus allowing the air duct to be removed. This method facilitates assembly and disassembly, reduces workload, and improves work efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural view of the present invention;

[0025] Figure 2 This is a three-dimensional structural view of the present invention;

[0026] Figure 3 This is a side sectional view of the structure of this utility model;

[0027] Figure 4 This is a top sectional view of a partial structure of this utility model.

[0028] Reference numerals in the attached drawings: 1. Connecting pipe; 2. Bend; 3. Fixing ring; 4. Limiting ring; 5. Slip ring; 6. First spring; 7. Fixing rod; 8. Adjusting hole; 9. Air duct; 10. Slide cylinder; 11. Second spring; 12. Trapezoidal groove; 13. Steel ball; 14. Fixing groove; 15. Anti-slip texture; 16. Connecting thread; 17. Sealing ring; 18. Protrusion; 19. Slide groove; 20. Sealing gasket. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1:

[0031] refer to Figure 1 , Figure 2 and Figure 3A quick-release connector for ventilation ducts includes a connecting pipe 1, a bend 2 rotatably sleeved on the inner wall of the connecting pipe 1, a fixing ring 3 fixedly sleeved on the surface of the connecting pipe 1, a limit ring 4 fixedly sleeved on the surface of the bend 2, a sliding ring 5 slidably sleeved on the surface of the bend 2, a first spring 6 provided between the limit ring 4 and the sliding ring 5, and the first spring 6 sleeved on the surface of the bend 2, a fixing rod 7 bolted to the surface of the sliding ring 5, and an adjustment hole 8 provided on the surface of the fixing ring 3, with the adjustment hole 8 slidably sleeved with the fixing rod 7. By moving the sliding ring 5, the sliding ring 5 moves and drives the fixing rod 7 to move, causing the fixing rod 7 to disengage from the adjustment hole 8. Then, the bend is rotated to the desired position, the sliding ring 5 is released, and the sliding ring 5, under the action of the first spring 6, drives the fixing rod 7 to insert into the adjustment hole 8, thus fixing it in place. This method facilitates directional adjustment, reduces workload, and improves practicality.

[0032] refer to Figure 2 Both the slip ring 5 and the slide cylinder 10 have anti-slip textures 15 on their surfaces. By setting the anti-slip textures 15, the hands are prevented from slipping and the operation is made easier.

[0033] refer to Figure 2 A sealing ring 17 is provided between the connecting pipe 1 and the bend 2 to prevent air leakage.

[0034] refer to Figure 2 The inner wall of the slip ring 5 is bolted with a protrusion 18, and the surface of the bend 2 is provided with a sliding groove 19, and the protrusion 18 and the sliding groove 19 are slidably connected. By setting the protrusion 18 and the sliding groove 19, the slip ring 5 is prevented from rotating and the stability is improved.

[0035] refer to Figure 2 One end of the fixing rod 7 is arc-shaped, which makes it easy to insert into the adjustment hole 8 and facilitates use.

[0036] Example 2:

[0037] refer to Figure 1 , Figure 2 and Figure 4 The inner wall of the bend 2 is slidably fitted with a duct 9, and the surface of the bend 2 is slidably fitted with a slide cylinder 10. A second spring 11 is provided between the slide cylinder 10 and the surface of the bend 2, and the second spring 11 is fitted on the surface of the bend 2. A trapezoidal groove 12 is provided on the inner wall of the slide cylinder 10, and a steel ball 13 is provided on the inner wall of the bend 2. A fixing groove 14 is provided on the surface of the duct 9, and the fixing groove 14 is engaged with the steel ball 13. By moving the slide cylinder 10, the trapezoidal groove 12 is moved, and the movement of the trapezoidal groove 12 causes the steel ball 13 to enter the trapezoidal groove 12 and disengage from the fixing groove 14, thus removing the duct 9. This method facilitates assembly and disassembly, reduces workload, and improves work efficiency.

[0038] refer to Figure 1 and Figure 2 The surface of the connecting pipe 1 is provided with a connecting thread 16, which facilitates installation.

[0039] refer to Figure 2 A sealing gasket 20 is provided between the inner wall of the air duct 9 and the bend 2. By providing the sealing gasket 20, air leakage is prevented and the sealing performance is improved.

[0040] Brief description of the usage process: When adjusting the direction, move the slip ring 5. The movement of the slip ring 5 causes the first spring 6 to contract. The movement of the slip ring 5 drives the fixed rod 7 to move, causing the fixed rod 7 to disengage from the adjusting hole 8. Then, after rotating the elbow to the desired direction, release the slip ring 5. Under the action of the first spring 6, the slip ring 5 drives the fixed rod 7 to insert into the adjusting hole 8, fixing the elbow and completing the adjustment, thus achieving the purpose of facilitating the adjustment of the direction. When disassembling and assembling, move the slide cylinder 10. The movement of the slide cylinder 10 causes the second spring 11 to contract. The movement of the slide cylinder 10 drives the trapezoidal groove 12 to move. The movement of the trapezoidal groove 12 causes the steel ball 13 to enter the trapezoidal groove 12 and disengage from the fixed groove 14, thus removing the air duct 9 and completing the disassembly. When installing, insert the air duct 9 into the elbow and release the slide cylinder 10. The slide cylinder 10 returns to its original position under the action of the second spring 11. The return of the slide cylinder 10 causes the trapezoidal groove 12 to return to its original position, causing the steel ball 13 to engage with the fixed groove 14, thus fixing the air duct 9 and completing the installation, thus achieving the purpose of facilitating the assembly and disassembly.

[0041] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A quick release joint for ventilation ducts comprising a connecting pipe (1), characterized in that, The inner wall of the connecting pipe (1) is rotatably sleeved with an elbow pipe (2), the surface of the connecting pipe (1) is fixedly sleeved with a fixed ring (3), the surface of the elbow pipe (2) is fixedly sleeved with a limiting ring (4), the surface of the elbow pipe (2) is slidably sleeved with a sliding ring (5), the first spring (6) is arranged between the limiting ring (4) and the sliding ring (5), and the first spring (6) is sleeved on the surface of the elbow pipe (2), the surface of the sliding ring (5) is bolted with a fixed rod (7), the surface of the fixed ring (3) is provided with an adjusting hole (8), and the adjusting hole (8) is slidably sleeved with the fixed rod (7).

2. A quick disconnect joint for a ventilation duct according to claim 1, characterised in that The inner wall of the elbow pipe (2) is slidably sleeved with an air pipe (9), the surface of the elbow pipe (2) is slidably sleeved with a sliding cylinder (10), the second spring (11) is arranged between the surface of the sliding cylinder (10) and the elbow pipe (2), and the second spring (11) is sleeved on the surface of the elbow pipe (2), the inner wall of the sliding cylinder (10) is provided with a trapezoidal groove (12), the inner wall of the elbow pipe (2) is provided with a steel ball (13), the surface of the air pipe (9) is provided with a fixed groove (14), and the fixed groove (14) is clamped with the steel ball (13).

3. A quick disconnect joint for a ventilation duct according to claim 2, characterised in that, The surface of the sliding ring (5) and the sliding cylinder (10) is provided with anti-skid lines (15).

4. A quick disconnect joint for a ventilation duct according to claim 1, wherein, The surface of the connecting pipe (1) is provided with a connecting thread (16).

5. A quick disconnect joint for a ventilation duct according to claim 1, wherein, The connecting pipe (1) and the elbow pipe (2) are provided with a sealing ring (17).

6. A quick disconnect joint for a ventilation duct according to claim 1, wherein, The inner wall of the sliding ring (5) is bolted with a protruding block (18), the surface of the elbow pipe (2) is provided with a sliding groove (19), and the protruding block (18) is slidably connected with the sliding groove (19).

7. A quick disconnect joint for a ventilation duct according to claim 2, wherein, The air pipe (9) and the inner wall of the elbow pipe (2) are provided with a sealing gasket (20).

8. A quick disconnect joint for a ventilation duct according to claim 1, wherein, One end of the fixed rod (7) is in arc shape.

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