A door and window air tightness detection device
By designing a mounting bracket and installation plate buckle mechanism for the airtightness testing device for doors and windows, as well as a linkage structure between rectangular plates, round rods, and sliding frames, the problem of single-person operation of large doors and windows was solved, enabling single-person placement and fixing, reducing labor costs and avoiding the risk of tipping over.
Patent Information
- Application Number
- CN202522149101.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-11
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-11
AI Technical Summary
Large doors and windows are too big and heavy for a single person to place and secure inside the testing machine. Multiple people are needed to work together, which increases labor costs and poses a risk of tipping over.
A door and window airtightness testing device was designed. The device uses a placement rack and mounting plate to be fixed by a buckle mechanism. Combined with the linkage structure of rectangular plate, round rod and sliding frame, it realizes the whole process of single-person operation from placement to fixing. The mechanical limit and locking structure prevents tipping.
It enables a single person to place and secure large doors and windows, reducing labor costs, avoiding the risk of tipping over due to manual support, and improving operational efficiency.
Smart Images
Figure CN224681732U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building door and window air tightness testing technology, and in particular to a door and window air tightness testing device. Background Technology
[0002] With the continuous improvement of building energy efficiency standards and the increasing demand for indoor environmental comfort, the airtightness, waterproofness and wind pressure resistance of doors and windows have become important indicators for measuring their quality. Accurate testing of these properties before doors and windows leave the factory is a key step to ensure that they meet the building requirements in actual use.
[0003] For large doors and windows, due to their size and weight, it is impossible for a single person to operate them independently when placing them into the testing machine and securing them. Workers must first lift the doors and windows and place them in place. Because the center of gravity of the doors and windows is prone to shift, one person must always hold them down with their hand to prevent them from tipping over, while the other person can free up their hands to operate the fixing mechanism (such as tightening bolts or fastening buckles), which increases labor costs.
[0004] Therefore, a door and window airtightness testing device was designed. Utility Model Content
[0005] This utility model addresses the shortcomings of existing technologies by providing a door and window airtightness testing device. It solves the problem that large doors and windows, due to their size and weight, cannot be operated by a single person when placed inside and fixed in the testing machine. Lifting them requires at least two people, and after they are in place, one person needs to hold them up to prevent them from tipping over while the other person operates the fixing mechanism, which increases labor costs.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A door and window airtightness testing device includes a testing device body, a mounting plate fixedly installed inside the testing device body, and a placement rack rotatably installed on the inner wall of the testing device body. The placement rack is used to place door and window components. The placement rack and the mounting plate are locked together by a snap-fit mechanism to limit the position of the placement rack.
[0007] Preferably, a mounting block is fixedly mounted on the outer wall of the mounting plate, and a rotating rod is rotatably mounted on the inner wall of the mounting block.
[0008] Preferably, four sets of rectangular plates are fixedly arranged on the outer wall of the rotating rod. The four sets of rectangular plates are arranged in a circular array with the axis of the rotating rod as the center, and the included angle between two adjacent sets of rectangular plates is ninety degrees.
[0009] Preferably, a sliding frame is slidably mounted on the outer wall of the mounting block, and a protrusion is provided on the outer wall of the sliding frame, the protrusion abutting against the corresponding rectangular plate.
[0010] Preferably, the outer wall of the placement rack is provided with a placement groove for placing doors and windows.
[0011] Preferably, a connecting plate is fixedly installed on the top of the placement rack, and a round rod is fixedly installed on the outer wall of the connecting plate, the round rod being in contact with the rectangular plate.
[0012] Preferably, a first limiting plate and a second limiting plate are fixedly installed on the inner wall of the main body of the detection device. The first limiting plate and the second limiting plate are located on both sides of the placement frame, respectively, and are used to limit and position the rotation angle of the placement frame.
[0013] Preferably, the first limiting plate has a triangular cross-section, with its hypotenuse facing the placement frame and fitting against the outer wall of the placement frame.
[0014] Preferably, slide rails are fixedly installed on both sides of the inner wall of the detection device body, and the two slide rails are arranged opposite to each other. A fixing plate is detachably installed on the slide rail by bolts.
[0015] Preferably, the fixing plate is fixedly connected to the door or window by fixing bolts, and the fixing bolts are spaced apart along the length of the fixing plate. Compared with the prior art, the present invention has the following beneficial effects: This utility model features a placement rack that can stably support doors and windows even when tilted, allowing for placement without manual assistance. During the flipping process, the automatic linkage between the rectangular plate, round rod, and sliding frame locks the door and window in a vertical position. Combined with the fixed plate that adjusts the sliding rail, a single person can complete the entire process from placing the door or window to fixing it. This reduces labor costs compared to the traditional method that requires multiple people to work together. The mechanical limit and locking structure also prevents the risk of doors and windows tipping over due to instability caused by improper handling. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the main body of the detection device of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the detection device of this utility model; Figure 4 This utility model Figure 3A magnified structural diagram of A in the middle; Figure 5 This is a schematic diagram of the structure when the placement rack and mounting plate of this utility model are connected; Figure 6 This is a schematic diagram of the partial explosion structure of this utility model.
[0018] Drawing number explanation: 1. Detection device body; 10. Slide rail; 11. Fixing plate; 2. Mounting plate; 21. Mounting block; 22. Rotating rod; 221. Rectangular plate; 23. Sliding frame; 231. Protrusion; 3. Placement frame; 30. Placement groove; 31. Connecting plate; 32. Round rod; 33. Limiting plate one; 34. Limiting plate two. Detailed Implementation
[0019] The present invention will now be described in further detail with reference to the accompanying drawings.
[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0021] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.
[0022] It is understood that the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example
[0023] Please see Figure 1-6A door and window airtightness testing device includes a testing device body 1, a mounting plate 2 fixedly installed inside the testing device body 1, and a placement rack 3 rotatably installed on the inner wall of the testing device body 1. The placement rack 3 is used to place door and window components. The placement rack 3 and the mounting plate 2 are fixedly engaged by a snap-fit mechanism to limit the position of the placement rack 3. A mounting block 21 is fixedly installed on the outer wall of the mounting plate 2. A rotating rod 22 is rotatably inserted through the inner wall of the mounting block 21. Four sets of rectangular plates 221 are fixedly arranged on the outer wall of the rotating rod 22. The four sets of rectangular plates 221 are arranged in a circular array with the axis of the rotating rod 22 as the center. The included angle between two adjacent sets of rectangular plates 221 is 90 degrees. A sliding frame 23 is slidably installed on the outer wall of the mounting block 21. A protrusion 231 is provided on the outer wall of the sliding frame 23. The protrusion 231 abuts against the corresponding rectangular plate 221. An opening is provided on the outer wall of the placement rack 3. There is a placement slot 30 for placing doors and windows; a connecting plate 31 is fixedly installed on the top of the placement rack 3, and a round rod 32 is fixedly installed on the outer wall of the connecting plate 31, which is in contact with the rectangular plate 221; a limiting plate 1 33 and a limiting plate 2 34 are fixedly installed on the inner wall of the detection device body 1, and the limiting plate 1 33 and the limiting plate 2 34 are located on both sides of the placement rack 3, respectively, for limiting and positioning the rotation angle of the placement rack 3; the cross section of the limiting plate 1 33 is triangular, the hypotenuse of the limiting plate 1 33 faces the placement rack 3, and the hypotenuse is in contact with the outer wall of the placement rack 3; slide rails 10 are fixedly installed on both sides of the inner wall of the detection device body 1, and the two slide rails 10 are arranged opposite each other. A fixing plate 11 is detachably installed on the slide rail 10 by bolts. The fixing plate 11 is fixedly connected to the door and window by fixing bolts, and the fixing bolts are spaced apart along the length direction of the fixing plate 11.
[0024] First, the worker manually lifts the sliding frame 23 upwards, separating the protrusion 231 on the outer wall of the sliding frame 23 from the rectangular plate 221 on the rotating rod 22. The sliding frame 23 slides along the outer wall of the mounting block 21. At this time, the rotating rod 22 and the rectangular plate 221 are released from their jamming and can rotate freely. The placement rack 3, which is indirectly linked to the rotating rod 22 through the round rod 32, can rotate after unlocking, preparing for the placement of doors and windows. After unlocking, the placement rack 3 naturally rotates downwards under its own weight until its outer wall is in contact with the inclined side of the limiting plate 33. The triangular structure of the limiting plate 33 mechanically limits the rotation angle of the placement rack 3, ensuring that it is stably tilted. In the receiving state; the placement slot 30 of the placement rack 3 is tilted upwards, which is convenient for workers to place large doors and windows; the worker puts the inclined surface of the placement rack 3 of the door or window to be tested into the placement slot 30; the door or window is stably placed on the placement rack 3 without manual support, freeing up the worker's hands; a single person can complete the placement of doors and windows, solving the problem of manpower waste that traditionally requires manual support; the worker flips the placement rack 3 upwards, causing the connecting plate 31 and the door and window to rotate synchronously. During the process, the round rod 32 on the connecting plate 31 gradually approaches the rectangular plate 221 of the rotating rod 22; when the round rod 32 contacts the rectangular plate 221, the thrust generated by the rotation of the placement rack 3 drives the rectangular plate 221 and the rotating rod 22 rotate clockwise, and the four sets of rectangular plates 221 are distributed at ninety degrees. During rotation, they can alternately contact the protrusions 231. During the rotation of the rotating rod 22, the side wall of the upper rectangular plate 221 contacts the protrusions 231 of the sliding frame 23, pushing the sliding frame 23 upward; limiting the rotation of the placement frame 3 to a ninety-degree vertical state; after the connecting plate 31 contacts the limiting plate 24, it can no longer rotate. At this time, the rectangular plate 221 of the rotating rod 22 just rotates to a horizontal position, and the sliding frame 23 and the protrusions 231 return to their original position under the action of gravity. The protrusions 231 abut against the side wall of the upper rectangular plate 221, while the lower rectangular plate 221... 21 abuts against the round rod 32 to form a locking structure; the placement frame 3 is mechanically locked in a vertical state, and the door and window are vertical at a 90-degree angle, achieving the initial fixation of the door and window; the worker loosens the connecting bolts between the slide rail 10 and the fixing plate 11, slides the fixing plate 11 along the length direction of the slide rail 10 and the depth direction of the detection device, adjusts its vertical height to match the height of the door and window frame, and tightens the bolts to fix it after it is in place; after the fixation is completed, the detection device of the detection device body 1 is started, and the detection is carried out according to the preset program; after the detection is completed, the sliding frame 23 is lifted in the opposite direction to unlock, and the placement frame 3 rotates to the tilted receiving state under its own weight, and the worker takes out the door and window along the placement groove 30.
[0025] Workflow The worker first manually lifts the sliding frame 23 upwards, separating the outer wall protrusion 231 from the rectangular plate 221 on the rotating rod 22. The sliding frame 23 slides along the outer wall of the mounting block 21, and the rotating rod 22 and rectangular plate 221 are released from their jamming and can rotate freely. The placement frame 3 is unlocked and can rotate because it is indirectly linked to the rotating rod 22 through the round rod 32. After unlocking, the placement frame 3 naturally rotates downwards under its own weight until it is in contact with the inclined side of the limiting plate 33. The triangular structure of the limiting plate 33 restricts its rotation angle, keeping it stable in an inclined receiving state. At this time, the placement slot 30 of the placement frame 3 is inclined upwards. The worker places the door or window to be tested into the placement slot 30 along the inclined surface. The placement can be completed by one person without manual support. Then the worker flips the placement frame 3 upwards, causing the connecting plate 31 and the door or window to rotate synchronously. The round rod 32 gradually approaches the rectangular plate 221. After contact, the thrust generated by the rotation of the placement frame 3 drives the rectangular plate 221 and the rotating rod. 22 rotates clockwise. During the rotation of the rotating rod 22, the side wall of the upper rectangular plate 221 pushes the sliding frame 23 upward, restricting the placement frame 3 to rotate to a 90-degree vertical state. After the connecting plate 31 contacts the limiting plate 34, it can no longer rotate. At this time, the rectangular plate 221 of the rotating rod 22 rotates to a horizontal position. The sliding frame 23 and the protrusion 231 return to their original position under the action of gravity, forming a locking structure with the rectangular plate 221. The placement frame 3 is mechanically locked in a vertical state, realizing the initial fixation of the door and window. Then, the worker loosens the connecting bolts between the slide rail 10 and the fixing plate 11, slides the fixing plate 11 along the length of the slide rail 10 to adjust the vertical height to match the height of the door and window frame, and tightens the bolts to fix it in place. Finally, the detection device body 1 is started to detect according to the preset program. After the detection is completed, the lifting and unlocking steps of the sliding frame 23 are repeated in the opposite direction. The placement frame 3 rotates to an inclined receiving state under its own weight, and the worker takes out the door and window along the placement groove 30.
[0026] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.
Claims
1. A device for detecting the airtightness of doors and windows, characterized in that, The device includes a detection device body (1), a mounting plate (2) fixedly installed inside the detection device body (1), and a placement rack (3) rotatably installed on the inner wall of the detection device body (1). The placement rack (3) is used to place door and window components. The placement rack (3) and the mounting plate (2) are fixedly connected by a snap-fit mechanism to limit the position of the placement rack (3).
2. The airtightness testing device for doors and windows according to claim 1, characterized in that: An installation block (21) is fixedly installed on the outer wall of the installation plate (2), and a rotating rod (22) is rotatably inserted through the inner wall of the installation block (21).
3. The airtightness testing device for doors and windows according to claim 2, characterized in that: Four sets of rectangular plates (221) are fixedly installed on the outer wall of the rotating rod (22). The four sets of rectangular plates (221) are arranged in a circular array with the axis of the rotating rod (22) as the center. The included angle between two adjacent sets of rectangular plates (221) is ninety degrees.
4. The airtightness testing device for doors and windows according to claim 2, characterized in that: A sliding frame (23) is slidably mounted on the outer wall of the mounting block (21), and a protrusion (231) is provided on the outer wall of the sliding frame (23), the protrusion (231) abutting against the corresponding rectangular plate (221).
5. The airtightness testing device for doors and windows according to claim 4, characterized in that: The outer wall of the placement rack (3) is provided with a placement groove (30) for placing doors and windows.
6. The airtightness testing device for doors and windows according to claim 1, characterized in that: A connecting plate (31) is fixedly installed on the top of the placement rack (3), and a round rod (32) is fixedly installed on the outer wall of the connecting plate (31). The round rod (32) is in contact with the rectangular plate (221).
7. The airtightness testing device for doors and windows according to claim 1, characterized in that: Limiting plate one (33) and limiting plate two (34) are fixedly installed on the inner wall of the main body (1) of the detection device. The limiting plate one (33) and limiting plate two (34) are located on both sides of the placement frame (3) respectively, and are used to limit and position the rotation angle of the placement frame (3).
8. The airtightness testing device for doors and windows according to claim 7, characterized in that: The cross-section of the limiting plate (33) is triangular, with the hypotenuse of the limiting plate (33) facing the placement frame (3) and the hypotenuse fitting against the outer wall of the placement frame (3).
9. The airtightness testing device for doors and windows according to claim 1, characterized in that: The inner walls of the detection device body (1) are fixedly installed with slide rails (10) on both sides. The two slide rails (10) are arranged opposite to each other. A fixing plate (11) is detachably installed on the slide rail (10) by bolts.
10. A door and window airtightness testing device according to claim 9, characterized in that: The fixing plate (11) is fixedly connected to the door and window by fixing bolts, and the fixing bolts are distributed at intervals along the length direction of the fixing plate (11).