Air duct folding and unfolding device

Abstract

The utility model discloses an air duct collecting and releasing device, which relates to the field of air duct collecting and releasing equipment and comprises air duct cloth, a plurality of circular ring frames are uniformly and fixedly connected to the periphery of the air duct cloth, sliding blocks are arranged on two sides of the periphery of the air duct cloth, and clamping blocks are fixedly connected to the end parts of the sliding blocks. According to the air duct cloth storage device, when the air duct cloth is stored, the annular frame, the elastic strips and the knocking balls are matched, the knocking balls continuously knock the periphery of the air duct cloth, the position and tension of the air duct cloth are adjusted to a certain degree, the situation that the air duct cloth is too tight or too loose locally is reduced, the process of storing the air duct cloth is smoother, and the phenomenon that the air duct cloth is blocked during storage is reduced; the condition of local accumulation or irregular folding is avoided, and the winding quality is improved; when the air duct cloth is unfolded, vibration generated by knocking of the elastic strips and the knocking balls can enable adhesion positions to be separated, the air duct cloth is smoothly unfolded, damage caused by forceful tearing in the unfolding process is avoided, whether hidden damage or defects exist in the air duct cloth or not can be checked through knocking, and it is guaranteed that the air duct cloth is in a good state before being used.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct deployment and retraction equipment, and in particular to a ventilation duct deployment and retraction device. Background Technology

[0002] A ventilation duct retraction and deployment device is a specialized piece of equipment designed for the efficient and convenient retraction and deployment of ventilation ducts in ventilation systems. It consists of a reel mechanism, a support frame, a guide device, and a tensioning device. It is widely used in ventilation-requiring scenarios such as mining, tunnel engineering, and subway construction. By driving the reel to rotate and coordinating the work of various devices, it enables the orderly retraction and deployment of the ventilation duct to meet the requirements of the ventilation system for adjusting the length of the ventilation duct and improving ventilation efficiency.

[0003] Existing duct storage devices often result in the duct cloth being too tight or too loose in certain areas during storage, hindering the process and causing localized accumulation or uneven folding. Furthermore, dust and debris accumulate on the surface of the duct cloth during use, damaging it and reducing its lifespan.

[0004] Therefore, it is necessary to propose a wind tunnel deployment and retraction device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a wind duct storage device to solve the problem that when storing the wind duct cloth, some parts may be too tight or too loose, which hinders the storage process and leads to local accumulation or uneven folding. In addition, during use, dust and debris will adhere to the surface of the wind duct cloth, which will damage the wind duct cloth and reduce its service life.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wind duct retraction device, comprising a wind duct cloth, wherein a plurality of circular ring frames are uniformly fixedly connected to the outer periphery of the wind duct cloth, and sliders are provided on both sides of the outer periphery of the wind duct cloth, wherein a locking block is fixedly connected to the end of the slider, and the locking block engages with the circular ring frame at the end.

[0007] An elastic strip is fixedly connected to the top of the side wall of the snap-fit ​​block, and a striking ball is fixedly connected to the end of the elastic strip. The striking ball is in contact with the outer periphery of the duct cloth.

[0008] Preferably, both the elastic strip and the striking ball are elastic.

[0009] Preferably, a first mounting bracket is provided on both sides of the outer periphery of the duct cloth, and a second mounting bracket is provided on the side of the outer periphery of the duct cloth away from the first mounting bracket. A fixing block is fixedly connected to the side wall of the first mounting bracket, and the fixing block is engaged with a ring frame away from the snap-fit ​​block. A lead screw is rotatably provided between the first mounting bracket and the second mounting bracket on one side. A threaded hole is opened on the slider, and the lead screw is engaged with the corresponding threaded hole.

[0010] Preferably, a mounting plate is provided on the top of the outer periphery of the duct cloth, a motor frame is fixedly connected to one side of the bottom of the mounting plate, a motor is fixedly connected to the side wall of the motor frame, a rotating shaft is fixedly connected to the motor shaft, two first transmission wheels are fixedly connected to the outer periphery of the rotating shaft, two second transmission wheels and two transmission belts are provided on the end of the duct cloth away from the snap-fit ​​block, the end of the lead screw is fixedly connected to the corresponding second transmission wheel, and the second transmission wheel and the first transmission wheel are connected to the corresponding transmission belts for transmission.

[0011] Preferably, a fixing plate is fixedly connected to both sides of the bottom surface of the mounting plate, and a cylindrical rod is fixedly connected between the two fixing plates. Multiple movable frames are slidably connected to the outer periphery of the cylindrical rod, and the movable frames are engaged with the top of the corresponding circular frame.

[0012] Preferably, the fixing plate on the side away from the snap-fit ​​block snaps into the end ring frame.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. In this utility model, when storing the duct cloth, the combination of the ring frame, elastic strip and tapping ball, and the tapping ball continuously tapping the outer periphery of the duct cloth, adjusts the position and tension of the duct cloth to a certain extent, reduces local over-tightness or over-looseness, makes the process of storing the duct cloth smoother, reduces the jamming phenomenon during storage, avoids local accumulation or uneven folding, and improves the winding quality.

[0015] 2. When unfolded, the vibration generated by the elastic strip and the tapping ball can separate the adhesive parts, allowing the duct cloth to unfold smoothly and avoiding damage caused by forceful tearing during unfolding. The tapping can also check whether there is any hidden damage or defect in the duct cloth, ensuring that the duct cloth is in good condition before use.

[0016] 3. In this utility model, the striking action of the elastic strip and the striking ball can cause dust, debris and other impurities attached to the surface of the duct cloth to fall off under the vibration, thereby playing a cleaning role, reducing the damage of dust and debris to the duct cloth, and extending the service life of the duct cloth. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2This is a cross-sectional schematic diagram of the present invention.

[0019] Figure 3 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Ventilation duct fabric; 11. Circular frame;

[0021] 2. Mounting plate; 21. Fixing plate; 22. Cylindrical rod; 23. Moving frame; 24. Motor frame;

[0022] 3. Elastic strip; 31. Striking ball;

[0023] 4. First mounting bracket; 41. Fixing block; 42. Second mounting bracket; 43. Lead screw; 44. Slider; 45. Snap-fit ​​block;

[0024] 5. Motor; 51. First transmission wheel; 52. Transmission belt; 53. Second transmission wheel; 54. Rotating shaft. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, embodiments of this utility model, and should not be construed as limiting this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be understood that the terminology used is for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] This utility model addresses the problem that during storage, the air duct cloth may become too tight or too loose in certain areas, hindering the storage process and leading to localized accumulation or uneven folding. Furthermore, during use, dust and debris accumulate on the surface of the air duct cloth, causing damage and reducing its lifespan. This invention provides a solution... Figures 1-3 The device shown includes a duct cloth 1, with multiple circular ring frames 11 evenly fixedly connected to the outer periphery of the duct cloth 1. Sliders 44 are provided on both sides of the outer periphery of the duct cloth 1, and locking blocks 45 are fixedly connected to the ends of the slides 44. The locking blocks 45 engage with the circular ring frames 11 at the ends. When the duct cloth 1 needs to be stored, the slides 44 are moved, which drives the locking blocks 45 to move. The movement of the locking blocks 45 drives the circular ring frames 11 to move, and the circular ring frames 11 move to one side to be stored.

[0027] Furthermore, an elastic strip 3 is fixedly connected to the top of the side wall of the snap-fit ​​block 45, and a striking ball 31 is fixedly connected to the end of the elastic strip 3. The striking ball 31 contacts the outer periphery of the duct cloth 1. When the duct cloth 1 is stored, the snap-fit ​​block 45 drives the elastic strip 3 and the striking ball 31 to move. After the striking ball 31 moves to the position of the ring frame 11, the ring frame 11 lifts up the elastic strip 3 and the striking ball 31. When the elastic strip 3 and the striking ball 31 move away from the ring frame 11, the elastic strip 3 restores the striking ball 31 to its original position, and the striking ball 31 strikes the duct cloth 1.

[0028] When storing the duct cloth 1, the circular frame 11, elastic strip 3 and striking ball 31 work together. The striking ball 31 continuously strikes the outer periphery of the duct cloth 1, which to a certain extent adjusts the position and tension of the duct cloth 1, reduces local over-tightness or over-looseness, makes the process of storing the duct cloth 1 smoother, reduces jamming during storage, avoids local accumulation or uneven folding, and improves the winding quality.

[0029] When unfolded, the vibration generated by the elastic strip 3 and the tapping ball 31 can separate the adhesive parts, allowing the duct cloth 1 to unfold smoothly, avoiding damage caused by forceful tearing during unfolding. The tapping can also check whether there are hidden damages or defects in the duct cloth 1, ensuring that the duct cloth 1 is in good condition before use.

[0030] In this invention, the striking action of the elastic strip 3 and the striking ball 31 can cause dust, debris and other impurities attached to the surface of the duct cloth 1 to fall off under the vibration, thereby playing a cleaning role, reducing the damage of dust and debris to the duct cloth 1, and extending the service life of the duct cloth 1.

[0031] Furthermore, both the elastic strip 3 and the striking ball 31 are elastic; due to the elastic setting of the elastic strip 3 and the striking ball 31, they play a buffering role during the striking process, preventing excessive striking force from damaging the duct cloth 1.

[0032] In this utility model, a first mounting bracket 4 is provided on both sides of the outer periphery of the duct cloth 1, and a second mounting bracket 42 is provided on the side of the outer periphery of the duct cloth 1 away from the first mounting bracket 4. A fixing block 41 is fixedly connected to the side wall of the first mounting bracket 4. The fixing block 41 is engaged with the annular frame 11 away from the locking block 45. A lead screw 43 is rotatably provided between the first mounting bracket 4 and the second mounting bracket 42 on one side. A threaded hole is opened on the slider 44, and the lead screw 43 is engaged with the corresponding threaded hole. The first mounting bracket 4 and the second mounting bracket 42 are installed on the wall at the place of use to help fix the duct cloth 1 and the annular frame 11. The fixing block 41 fixes the annular frame 11 at one end, making it convenient for the device to store the duct cloth 1 to one side. When storing, the lead screw 43 is rotated, and the rotation of the lead screw 43 drives the slider 44 to move. The cooperation between the slider 44 and the component completes the storage of the duct cloth 1.

[0033] It should be noted that a mounting plate 2 is provided on the top of the outer periphery of the duct cloth 1. A motor frame 24 is fixedly connected to one side of the bottom of the mounting plate 2. A motor 5 is fixedly connected to the side wall of the motor frame 24. A rotating shaft 54 ​​is fixedly connected to the shaft of the motor 5. Two first transmission wheels 51 are fixedly connected to the outer periphery of the rotating shaft 54. Two second transmission wheels 53 and two transmission belts 52 are provided at the end of the duct cloth 1 away from the snap-fit ​​block 45. The end of the lead screw 43 is fixedly connected to the corresponding second transmission wheel 53. The second transmission wheel 53 and the first transmission wheel 51 are connected to the corresponding transmission belt 52 for transmission. When storing, the motor 5 is turned on. The rotation of the motor 5 drives the rotating shaft 54 ​​to rotate. The rotation of the rotating shaft 54 ​​drives the first transmission wheel 51 to rotate. The first transmission wheel 51 drives the second transmission wheel 53 to rotate through the transmission belt 52. The rotation of the second transmission wheel 53 drives the lead screw 43 to rotate.

[0034] In this utility model, fixing plates 21 are fixedly connected to both sides of the bottom surface of the mounting plate 2, and a cylindrical rod 22 is fixedly connected between the two fixing plates 21. Multiple movable frames 23 are slidably connected to the outer periphery of the cylindrical rod 22, and the movable frames 23 are engaged with the top of the corresponding circular frame 11. The cylindrical rod 22 installed between the two fixing plates 21 provides assistance for the movement of the movable frame 23, and the movable frame 23 provides assistance for the movement of the corresponding circular frame 11, while also helping to fix the circular frame 11, ensuring the normal use of the duct cloth 1. The mounting plate 2 can fix the device to the top position.

[0035] It should be noted that the fixing plate 21 on the side away from the snap-fit ​​block 45 snaps into the end ring frame 11; the fixing plate 21 helps to further snap and fix the ring frame 11.

[0036] It should also be noted that the snap-fit ​​block 45, the movable frame 23, and the fixed block 41 are all provided with snap-fit ​​slots, which can be snapped into the corresponding circular frame 11.

Claims

1. A ventilation duct retraction device, comprising a ventilation duct cloth (1), characterized in that: Multiple circular ring frames (11) are evenly fixedly connected to the outer periphery of the duct cloth (1). Slider blocks (44) are provided on both sides of the outer periphery of the duct cloth (1). A snap-fit ​​block (45) is fixedly connected to the end of the slider (44). The snap-fit ​​block (45) snaps into the circular ring frame (11) at the end. An elastic strip (3) is fixedly connected to the top of the side wall of the snap-fit ​​block (45), and a striking ball (31) is fixedly connected to the end of the elastic strip (3). The striking ball (31) is in contact with the outer periphery of the duct cloth (1).

2. The wind duct retraction device according to claim 1, characterized in that: Both the elastic strip (3) and the striking ball (31) are elastic.

3. The ventilation duct retraction device according to claim 1, characterized in that: The outer periphery of the duct cloth (1) is provided with a first mounting bracket (4) on both sides. The outer periphery of the duct cloth (1) away from the first mounting bracket (4) is provided with a second mounting bracket (42). A fixing block (41) is fixedly connected to the side wall of the first mounting bracket (4). The fixing block (41) is engaged with the ring frame (11) away from the snap-fit ​​block (45). A lead screw (43) is rotatably arranged between the first mounting bracket (4) and the second mounting bracket (42) on one side. A threaded hole is opened on the slider (44). The lead screw (43) is engaged with the corresponding threaded hole.

4. The ventilation duct retraction device according to claim 3, characterized in that: The top of the outer periphery of the duct cloth (1) is provided with an installation plate (2). A motor frame (24) is fixedly connected to one side of the bottom of the installation plate (2). A motor (5) is fixedly connected to the side wall of the motor frame (24). A rotating shaft (54) is fixedly connected to the shaft of the motor (5). Two first transmission wheels (51) are fixedly connected to the outer periphery of the rotating shaft (54). Two second transmission wheels (53) and two transmission belts (52) are provided at the end of the duct cloth (1) away from the snap-fit ​​block (45). The end of the lead screw (43) is fixedly connected to the corresponding second transmission wheel (53). The second transmission wheel (53) and the first transmission wheel (51) are connected to the corresponding transmission belt (52).

5. A wind tunnel retraction device according to claim 4, characterized in that: The mounting plate (2) has fixed plates (21) on both sides of its bottom surface. A cylindrical rod (22) is fixedly connected between the two fixed plates (21). Multiple movable frames (23) are slidably connected to the outer periphery of the cylindrical rod (22). The movable frames (23) are engaged with the top of the corresponding circular frame (11).

6. The ventilation duct retraction device according to claim 5, characterized in that: The fixing plate (21) on the side away from the snap-fit ​​block (45) snaps into the end ring frame (11).

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