Airtightness rapid detection device for ventilation duct

Abstract

This utility model relates to the field of airtightness testing devices, and discloses a rapid airtightness testing device for ventilation ducts. It includes a base, with a testing structure on the upper end of the base. The testing structure includes a movable plate, a connecting plate fixedly connected to one side of the movable plate, and grooves formed on both the side of the movable plate and the upper end of the connecting plate. A movable block is slidably connected inside the grooves, and a light is fixedly connected to the upper end of the movable block. A connecting rope is fixedly connected to one side of the movable block. In this utility model, the movable block can be slid by the connecting rope when the rotating wheel rotates, facilitating the movement of the light to observe for light leakage and thus identify air leakage points. This makes the testing faster and simpler. The position and height of the movable plate can be adjusted by rotating the plate and locking it inside different grooves, allowing the light to be closer to the duct being tested.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing devices, and in particular to a rapid airtightness testing device for ventilation ducts. Background Technology

[0002] Ventilation ducts are pipe systems used for air circulation and ventilation. They are mainly used to transport air from one place to another to ensure airflow. Testing the airtightness of ventilation ducts is mainly to ensure that the airflow within the duct system does not leak, thereby ensuring ventilation effect, energy saving effect and air quality. There may be seams or interfaces at the connection of ventilation ducts, which are usually one of the main locations of poor sealing. The light leakage detection method can quickly detect whether there is a leak in the ventilation duct.

[0003] When using the light leakage detection method, the light source needs to be moved at the interface of the ventilation duct. During the test, the staff needs to hold the light source continuously. However, when testing multiple connection points, holding the light source for a long time will increase the difficulty of the test and will also affect the health of the staff.

[0004] Therefore, those skilled in the art have provided a rapid airtightness testing device for ventilation ducts to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rapid airtightness detection device for ventilation ducts. This device utilizes a rotating wheel and a connecting rope to slide a moving block, facilitating the movement of a light source to observe for light leakage and identify air leaks. This makes detection faster and simpler. The position and height of the moving plate can be adjusted by rotating it within different slots, allowing the light source to be closer to the duct being inspected.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A rapid airtightness testing device for ventilation ducts includes a base, and a testing structure is provided on the upper end of the base;

[0008] The detection structure includes a movable plate, a connecting plate fixedly connected to one side of the movable plate, and a sliding groove provided on one side of the movable plate and the upper end of the connecting plate. A movable block is slidably connected inside the sliding groove. A lighting lamp is fixedly connected to the upper end of the movable block. A connecting rope is fixedly connected to one side of the movable block. Multiple fixed plates are fixedly connected to one side of the movable plate. A rotating wheel is rotatably connected between two fixed plates. One side of the connecting rope is fixed to the outer wall of the rotating wheel.

[0009] The above technical solution allows the sliding block to move inside the chute, enabling the lighting lamp to move outside the pipe to check for light leakage. The connecting rope is easily wound around the sliding block, which in turn moves the lighting lamp. The rotating wheel allows the connecting rope to be wound around the wheel or unwound when it rotates.

[0010] Furthermore, a connecting spring is fixedly connected to one side of the inside of the slide, and one side of the connecting spring is fixedly connected to the moving block;

[0011] The above technical solution allows the connecting spring to facilitate the movement of the moving block in the opposite direction after the rotating wheel is released, returning it to its original position.

[0012] Furthermore, the front and rear ends of the movable block are fixedly connected to limit blocks, and the front and rear ends of the slide are provided with limit grooves.

[0013] The above technical solution uses a limiting block and a limiting groove to limit the sliding of the moving block.

[0014] Furthermore, a guide wheel is fixedly connected to the upper end of the movable plate, and the connecting rope on one side passes through the guide wheel;

[0015] The above technical solution facilitates the guidance of the movement of the connecting rope on one side by setting up the guide wheel.

[0016] Furthermore, a rotating handle is rotatably connected inside the fixed plate, and the rotating handle is fixedly connected to the rotating wheel;

[0017] The above technical solution allows the rotating handle to easily drive the rotating wheel to rotate, thereby winding or unwinding the moving block.

[0018] Furthermore, the upper end of the base is fixedly connected to the front and rear ends of both sides, the movable plate slides between the support plates, and the support plates have multiple through slots inside.

[0019] The above technical solution allows the moving plate to slide between the support plates.

[0020] Furthermore, the movable plate has rotating grooves at both its front and rear ends, a rotating plate is rotatably connected inside the rotating groove, and rotating blocks are fixedly connected to both sides of the rotating plate.

[0021] The above technical solution allows the rotating plate to slide by passing through or away from the through slot during rotation.

[0022] The present invention has the following beneficial effects:

[0023] This utility model proposes a rapid airtightness testing device for ventilation ducts. Compared with existing airtightness testing devices, the device facilitates the testing of duct interfaces by incorporating a lighting lamp. Rotating the handle causes the rotating wheel to rotate, and the rope being wound around the moving block slides, thereby causing the lighting lamp to move slowly outside the duct interface. The presence of air leaks can be determined by observing whether there is light leakage. This greatly reduces the difficulty and fatigue of manually moving the lighting device. Attached Figure Description

[0024] Figure 1 This is an isometric view of a rapid airtightness testing device for ventilation ducts proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a support plate for a rapid airtightness testing device for ventilation ducts proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of a movable plate for a rapid airtightness testing device for ventilation ducts proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the connecting spring of a rapid airtightness testing device for ventilation ducts proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of a fixing plate for a rapid airtightness testing device for ventilation ducts proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Detection structure; 201. Connecting plate; 202. Slide groove; 203. Moving block; 204. Lighting lamp; 205. Limiting block; 206. Limiting groove; 207. Connecting spring; 208. Guide wheel; 209. Connecting rope; 210. Fixing plate; 211. Rotating wheel; 212. Rotating handle; 213. Moving plate; 3. Support plate; 4. Through groove; 5. Rotating groove; 6. Rotating plate; 7. Rotating block. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Reference Figure 1-5One specific embodiment provided by this utility model:

[0033] A rapid airtightness testing device for ventilation ducts includes a base 1, and a testing structure 2 is provided on the upper end of the base 1.

[0034] The detection structure 2 includes a movable plate 213, with a connecting plate 201 fixedly connected to one side of the movable plate 213. Both the movable plate 213 and the upper end of the connecting plate 201 have sliding grooves 202. A movable block 203 is slidably connected inside the sliding groove 202. The sliding groove 202 facilitates the movement of the movable block 203 within it, allowing the lighting lamp 204 to move outside the pipe for light leakage observation. A connecting spring 207 is fixedly connected to one side of the sliding groove 202, and one side of the connecting spring 207 is fixedly connected to the movable block 203. The connecting spring 207 facilitates the movement of the movable block 203 in the opposite direction after the rotating wheel 211 is released, returning it to its original position. Limiting blocks 205 are fixedly connected to both the front and rear ends of the movable block 203, and limiting grooves 206 are provided at both the front and rear ends of the sliding groove 202. The limiting blocks 205 and limiting grooves 206 limit the sliding of the movable block 203. A light is fixedly connected to the upper end of the movable block 203. The lamp 204 and the moving block 203 are fixedly connected to one side with a connecting rope 209. The connecting rope 209 is designed to facilitate the movement of the moving block 203 after being wound, thereby moving the lamp 204. The upper end of the moving plate 213 is fixedly connected with a guide wheel 208. The connecting rope 209 on one side passes through the guide wheel 208. The guide wheel 208 is designed to guide the movement of the connecting rope 209 on one side. Multiple fixed plates 210 are fixedly connected to one side of the moving plate 213. A rotating wheel 211 is rotatably connected between two fixed plates 210. One side of the connecting rope 209 is fixed to the outer wall of the rotating wheel 211. The rotating wheel 211 is designed to facilitate the winding or unwinding of the connecting rope 209 when it rotates. A rotating handle 212 is rotatably connected inside the fixed plate 210. The rotating handle 212 is fixedly connected to the rotating wheel 211. The rotating handle 212 is designed to facilitate the rotation of the rotating wheel 211, thereby winding or unwinding the moving block 203.

[0035] Support plates 3 are fixedly connected to the front and rear ends of one side of the upper end of the base 1. The movable plate 213 slides between the support plates 3. Multiple through slots 4 are opened inside the support plates 3. The support plates 3 are designed to facilitate the sliding of the movable plate 213 between them. Rotating slots 5 are opened at the front and rear ends of the movable plate 213. Rotating plates 6 are rotatably connected inside the rotating slots 5. Rotating blocks 7 are fixedly connected to both sides of the rotating plates 6. The rotating plates 6 are designed to pass through or move away from the through slots 4 when rotating, thereby allowing the movable plate 213 to slide.

[0036] Working principle: When in use, move the device to the outside of the ventilation duct to be inspected. Adjust the height of the moving plate 213 according to the position of the ventilation duct. Pull the moving plate 213 upward so that the rotating plate 6 moves upward to the upper side of the through groove 4. Push the rotating plate 6 inward so that it rotates away from the through groove 4. Adjust the position of the moving plate 213 and push the rotating plate 6 outward so that it passes through the through groove 4. This allows the height of the lighting lamp 204 to be adjusted, keeping the inside of the duct dark. Move the device to the interface, turn on the lighting lamp 204, and turn the front handle 212 to make the rotating wheel 211 rotate and the connecting rope 209 is wound around the wheel. The rope being wound will cause the moving block 203 to slide, thereby moving the lighting lamp 204 slowly outside the duct interface. The staff can then observe inside for light leakage to determine if there is any air leakage. Turn the rear handle 212 so that the lighting lamp 204 can inspect both sides of the duct interface, greatly reducing the difficulty and fatigue of manually moving the lighting equipment.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid airtightness testing device for ventilation ducts, comprising a base (1), characterized in that: The base (1) is provided with a detection structure (2) at its upper end; The detection structure (2) includes a movable plate (213), a connecting plate (201) is fixedly connected to one side of the movable plate (213), and a sliding groove (202) is provided on one side of the movable plate (213) and the upper end of the connecting plate (201). A movable block (203) is slidably connected inside the sliding groove (202). A lighting lamp (204) is fixedly connected to the upper end of the movable block (203). A connecting rope (209) is fixedly connected to one side of the movable block (203). Multiple fixed plates (210) are fixedly connected to one side of the movable plate (213). A rotating wheel (211) is rotatably connected between two fixed plates (210). One side of the connecting rope (209) is fixed to the outer wall of the rotating wheel (211).

2. The rapid airtightness testing device for ventilation ducts according to claim 1, characterized in that: A connecting spring (207) is fixedly connected to one side of the inside of the slide (202), and one side of the connecting spring (207) is fixedly connected to the moving block (203).

3. The rapid airtightness testing device for ventilation ducts according to claim 1, characterized in that: The front and rear ends of the moving block (203) are fixedly connected to the limiting block (205), and the front and rear ends of the slide (202) are provided with limiting grooves (206).

4. The rapid airtightness testing device for ventilation ducts according to claim 1, characterized in that: The upper end of the movable plate (213) is fixedly connected to a guide wheel (208), and the connecting rope (209) on one side passes through the guide wheel (208).

5. The rapid airtightness testing device for ventilation ducts according to claim 1, characterized in that: The fixed plate (210) is rotatably connected to a handle (212), which is fixedly connected to a rotating wheel (211).

6. The rapid airtightness testing device for ventilation ducts according to claim 1, characterized in that: The base (1) has a support plate (3) fixedly connected to both the front and rear ends on one side of the upper end. The movable plate (213) slides between the support plates (3). The support plate (3) has multiple through slots (4) inside.

7. The rapid airtightness testing device for ventilation ducts according to claim 1, characterized in that: The movable plate (213) has a rotating groove (5) at both the front and rear ends. A rotating plate (6) is rotatably connected inside the rotating groove (5). Rotating blocks (7) are fixedly connected to both sides of the rotating plate (6).

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