Door and window thermal insulation performance detection device

Abstract

The invention relates to the technical field of door and window detection, in particular to a door and window heat preservation performance detection device which comprises a detection chamber, a heat insulation barrier plate fixed in the detection chamber, a door and window to be detected arranged on one side of the heat insulation barrier plate and an installation assembly installed between the heat insulation barrier plate and the door and window to be detected. The installation assembly can accurately position and fix the to-be-tested door and window according to the size of the to-be-tested door and window, and can adaptively fill all gaps between the to-be-tested door and window and the fixed bottom plate, the fixed vertical plate, the abutting top plate and the abutting side plate, thereby ensuring that each edge of the door and window is tightly sealed, and improving the sealing performance of the door and window. The sealing effect is further improved, the possibility that cold and hot air leaks through any tiny gap is avoided, the stability of the detection environment is guaranteed, the whole detection process is carried out in an ideal environment, data deviation caused by poor sealing is avoided, and the credibility of the detection result is improved.

Description

Technical Field

[0001] The invention relates to the technical field of door and window detection, and in particular to a device for detecting thermal insulation performance of doors and windows. Background Art

[0002] In the construction industry, doors and windows are important components of building envelopes. Their thermal insulation performance has a vital impact on the energy consumption and indoor comfort of buildings. As people's requirements for building energy conservation continue to increase, accurate testing of the thermal insulation performance of doors and windows has become a key task in multiple links such as door and window production, building design, and quality supervision.

[0003] Traditional thermal insulation performance testing devices for doors and windows often have many limitations. In the installation process of doors and windows, the installation components of most devices are simple and lack flexibility, making it difficult to adapt to the testing needs of doors and windows of different sizes. They cannot be firmly installed in the testing device, and even gaps are likely to appear at the connection between the doors and windows and the installation components, causing cold and hot air to leak during the testing process, thereby destroying the preset temperature and humidity environment in the testing room, resulting in deviations in the test data and failing to truly reflect the thermal insulation performance of doors and windows.

[0004] In order to solve the above problems, this application proposes a door and window thermal insulation performance detection device. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a door and window thermal insulation performance detection device, which has the characteristics of accurately positioning and fixing the door and window to be tested according to the size of the door and window to be tested, and adaptively filling all gaps of the door and window to be tested, thereby ensuring that tight sealing is achieved at all edges of the door and window.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a door and window thermal insulation performance detection device, comprising a detection chamber, a heat insulation blocking plate fixed inside the detection chamber, and a door and window to be detected arranged on one side of the heat insulation blocking plate, and also comprising an installation component installed between the heat insulation blocking plate and the door and window to be detected;

[0007] The mounting assembly includes a fixed bottom plate fixed to the bottom of the side surface of the heat insulation barrier plate, a fixed vertical plate fixed to one side of the upper surface of the fixed bottom plate, and an inflatable sealing strip fixed inside the fixed bottom plate; the fixed bottom plate is internally slidably connected with a side plate arranged parallel to the fixed vertical plate; the fixed vertical plate is internally slidably connected with a top plate arranged parallel to the fixed bottom plate; and the fixed vertical plate, the top plate and the side plate are all internally fixed with inflatable sealing strips of the same structure as that inside the fixed bottom plate; an air pump is connected to the surface of the heat insulation barrier plate with screws, and an air supply pipe is connected between the output end of the air pump and multiple groups of inflatable sealing strips.

[0008] Furthermore, the heat-insulating blocking plate of the present invention divides the detection chamber into a cold chamber and a hot chamber, a refrigerator is fixed to the side of the outer surface of the detection chamber close to the cold chamber, and a dehumidifier is fixed to the side of the outer surface of the detection chamber close to the hot chamber, a lifting cylinder is connected to the surface of the fixed vertical plate by screws, and the output end of the lifting cylinder is fixedly connected to the surface close to the top plate, a push-pull cylinder is provided at the bottom of the fixed bottom plate, the output end of the push-pull cylinder is fixedly connected to the surface close to the side plate, and the push-pull cylinder and the fixed bottom plate are slidably connected via a giveway track.

[0009] Furthermore, a plurality of groups of springs arranged equidistantly are symmetrically fixed on both sides of the interior of the fixed bottom plate of the present invention, extrusion plates are respectively fixed on opposite sides of the two groups of springs, sealing gaskets are abutted on opposite sides of the two groups of extrusion plates, and a clearance groove matched with the sealing gasket is provided inside the fixed bottom plate, and sealing gaskets and their auxiliary structures with the same structure as those inside the fixed bottom plate are installed inside the fixed vertical plate, the top plate and the side plate.

[0010] Furthermore, the sealing gaskets inside the fixed bottom plate and the fixed vertical plate of the present invention respectively penetrate the inside of the fixed bottom plate and the fixed vertical plate, and respectively extend to the outside of the fixed bottom plate and the fixed vertical plate, and are respectively fixedly connected to the fixed plates arranged on the outside of the fixed bottom plate and the fixed vertical plate, and tension springs are fixed between the two groups of fixed plates and the fixed bottom plate and the fixed vertical plate.

[0011] Furthermore, the present invention also includes a temperature measuring component installed inside the detection chamber, the temperature measuring component includes two groups of movable tracks fixed on the floor of the hot chamber of the detection chamber, a support frame slidably connected between the two groups of movable tracks, and a plurality of variable pitch plates arranged in parallel inside the support frame, the plurality of variable pitch plates are arranged in increasing order of length inside the support frame, and the surface of the variable pitch plate is screwed connected to temperature sensor 1, and the surface of the cold chamber of the detection chamber is screwed connected to temperature sensor 2.

[0012] Furthermore, the surface of the support frame described in the present invention is screwed with a pitch-changing cylinder, the output end of the pitch-changing cylinder is fixedly connected to one group of multiple groups of pitch-changing plates located on one side, and one group of multiple groups of pitch-changing plates located on the other side is fixedly connected to the inner wall surface of the support frame, and a positioning slider is fixed to the lower surface of the middle pitch-changing plate, and the positioning slider is slidably connected to the inside of the support frame, and the multiple groups of pitch-changing plates are connected by cross-arranged hinge rods.

[0013] Furthermore, a threaded plate is fixed inside the support frame of the present invention, the internal threads of the threaded plate are connected to a screw rod, and the screw rod is rotatably connected to the surface of the detection chamber, the surface of the detection chamber is screwed to a movable motor, and the output end of the movable motor is fixedly connected to one end of the screw rod.

[0014] The beneficial effects of the present invention are that the defects existing in the background technology are solved.

[0015] 1. Through the installation components, the doors and windows to be tested can be accurately positioned and fixed according to the size of the doors and windows to be tested, which greatly improves the versatility of the detection device. While fixing, the surface of the doors and windows to be tested can be well initially sealed, thereby preventing the leakage of cold and hot air between the doors and windows to be tested and the installation components, thereby ensuring the accuracy of the test results, and can adaptively fill all gaps between the doors and windows to be tested and the fixed bottom plate, fixed vertical plate, top plate and side plate, thereby ensuring that tight sealing is achieved at all edges of the doors and windows, further improving the sealing effect, avoiding the possibility of cold and hot air leaking through any tiny gaps, ensuring the stability of the detection environment, and making the entire detection process in an ideal environment, avoiding data deviations caused by poor sealing, and improving the credibility of the test results.

[0016] 2. Through the set temperature measurement components, it is possible to detect the temperature at multiple different positions of the doors and windows to be tested in the heat chamber, avoiding the one-sided data caused by a single measurement point, and being able to obtain a more comprehensive temperature distribution in the heat chamber, which is helpful to more accurately evaluate the thermal insulation performance of the doors and windows to be tested at different positions, and provide more detailed data support for the design and improvement of doors and windows, greatly improving the comprehensiveness of the detection, so that the thermal insulation performance of the doors and windows to be tested in different areas can be accurately captured, ensuring that the test results can more truly reflect the thermal insulation performance of the doors and windows in actual use scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the partition plate and the installation assembly in the present invention;

[0019] Figure 3 It is a partial structural schematic diagram of the installation assembly in the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the fixed base plate and the sealing gasket in the present invention;

[0021] Figure 5 It is a structural schematic diagram of the temperature measurement component in the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the support frame and the temperature sensor 1 in the present invention.

[0023] In the figure: 1. detection room; 2. heat insulation blocking plate; 3. installation assembly; 31. fixed bottom plate; 32. fixed vertical plate; 33. lifting cylinder; 34. against top plate; 35. against side plate; 36. push-pull cylinder; 37. make way track; 38. inflatable sealing strip; 39. air pump; 310. gas pipe; 311. refrigerator; 312. dehumidifier; 313. spring; 314. extrusion plate; 315. sealing pad; 316. fixed plate; 317. tension spring; 4. temperature measuring assembly; 41. moving track; 42. support frame; 43. threaded plate; 44. screw rod; 45. moving motor; 46. variable pitch cylinder; 47. variable pitch plate; 48. hinged rod; 49. positioning slide block; 410. temperature sensor 1; 411. temperature sensor 2; 5. doors and windows to be tested. DETAILED DESCRIPTION

[0024] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0025] like Figure 1-Figure 6 The device for testing the thermal insulation performance of doors and windows shown in the figure comprises a testing chamber 1, a heat insulation blocking plate 2 fixed inside the testing chamber 1, and a door and window 5 to be tested arranged on one side of the heat insulation blocking plate 2.

[0026] In order to ensure that a tight seal is achieved at each edge of the door and window, a mounting assembly 3 is also included which is mounted between the heat insulation blocking plate 2 and the door and window 5 to be tested;

[0027] The mounting assembly 3 includes a fixed bottom plate 31 fixed to the bottom of the side of the heat insulation barrier plate 2, a fixed vertical plate 32 fixed to one side of the upper surface of the fixed bottom plate 31, and an inflatable sealing strip 38 fixed inside the fixed bottom plate 31. The fixed bottom plate 31 is internally slidably connected with a side plate 35 arranged parallel to the fixed vertical plate 32, and the fixed vertical plate 32 is internally slidably connected with a top plate 34 arranged parallel to the fixed bottom plate 31. The fixed vertical plate 32, the top plate 34 and the side plate 35 are all internally fixed with inflatable sealing strips 38 of the same structure as that of the fixed bottom plate 31. The surface of the heat insulation barrier plate 2 is screwed with an air pump 39, and an air supply pipe 310 is connected between the output end of the air pump 39 and the multiple groups of inflatable sealing strips 38.

[0028] In this embodiment: when it is necessary to test the thermal insulation performance of the door and window 5 to be tested, first, the bottom edge and the side edge of the door and window 5 to be tested are aligned with the fixed bottom plate 31 and the fixed vertical plate 32 respectively, and inserted into the fixed bottom plate 31 and the fixed vertical plate 32, and then the top plate 34 and the side plate 35 are pressed against the surface of the door and window 5 to be tested, so as to achieve accurate positioning and fixation of the door and window 5 to be tested. After the installation and fixation of the door and window 5 to be tested is completed, the air pump 39 is started, and then the air pump 39 inflates each inflatable sealing strip 38 through the air pipe 310 to expand it, so as to adaptively fill all gaps between the door and window 5 to be tested and the fixed bottom plate 31, the fixed vertical plate 32, the top plate 34 and the side plate 35, so as to ensure that a tight seal is achieved at each edge of the door and window.

[0029] In an optional embodiment: the heat-insulating blocking plate 2 divides the detection chamber 1 into a cold chamber and a hot chamber, a refrigerator 311 is fixed on the side of the outer surface of the detection chamber 1 close to the cold chamber, and a dehumidifier 312 is fixed on the side of the outer surface of the detection chamber 1 close to the hot chamber, a lifting cylinder 33 is connected to the surface of the fixed vertical plate 32 by screws, and the output end of the lifting cylinder 33 is fixedly connected to the surface close to the top plate 34, a push-pull cylinder 36 is arranged at the bottom of the fixed bottom plate 31, and the output end of the push-pull cylinder 36 is fixedly connected to the surface close to the side plate 35, and the push-pull cylinder 36 and the fixed bottom plate 31 are slidably connected through a yield track 37, and a plurality of groups of springs 313 arranged equidistantly are symmetrically fixed on both sides of the interior of the fixed bottom plate 31, and extrusion springs 313 are fixed to the opposite sides of the two groups of springs 313. The pressure plate 314 and the two sets of extrusion plates 314 are both abutted against a sealing gasket 315 on opposite sides, and a make way groove adapted to the sealing gasket 315 is opened inside the fixed bottom plate 31, and the fixed vertical plate 32, the top plate 34 and the side plate 35 are all installed with a sealing gasket 315 and its auxiliary structure with the same structure as that inside the fixed bottom plate 31, and the sealing gaskets 315 inside the fixed bottom plate 31 and the fixed vertical plate 32 respectively penetrate the interior of the fixed bottom plate 31 and the fixed vertical plate 32, and extend to the outside of the fixed bottom plate 31 and the fixed vertical plate 32 respectively, and are fixedly connected to the fixed plates 316 arranged on the outside of the fixed bottom plate 31 and the fixed vertical plate 32 respectively, and tension springs 317 are fixed between the two sets of fixed plates 316 and the fixed bottom plate 31 and the fixed vertical plate 32 respectively.

[0030] In this embodiment, the lifting cylinder 33 is started, and the lifting cylinder 33 pulls the top plate 34 and its internal auxiliary structure to move downward synchronously, and approaches the top edge of the door and window 5 to be tested. When the sealing gasket 315 inside the top plate 34 contacts the surface of the door and window 5 to be tested, under the action of the spring 313, it will also be closely attached to the surface of the door and window 5 to be tested, so as to fix and seal the top of the door and window 5 to be tested. During this period, by moving the top plate 34 downward, when the top plate 34 contacts the top of the side plate 35, it can press down and drive the side plate 35 to move upward. The interior of the fixed bottom plate 31 slides, thereby driving the push-pull cylinder 36 to move downward along the surface of the yield track 37. When the top plate 34 is tightly against the top of the door and window 5 to be tested, the lifting cylinder 33 is closed and the push-pull cylinder 36 is started. The push-pull cylinder 36 pulls the side plate 35 and its internal auxiliary structure to move toward the side of the door and window 5 to be tested. Similarly, when the sealing gasket 315 inside the side plate 35 contacts the surface of the door and window 5 to be tested, it will also be tightly against the surface of the door and window 5 to be tested, thereby fixing and sealing the side of the door and window 5 to be tested.

[0031] Going further:

[0032] In combination with the above content, in order to detect the temperatures at multiple different positions of the doors and windows 5 to be tested in the hot chamber, a temperature measuring component 4 is also included that is installed inside the detection chamber 1. The temperature measuring component 4 includes two sets of movable rails 41 fixed on the floor of the hot chamber of the detection chamber 1, a support frame 42 slidably connected between the two sets of movable rails 41, and a plurality of variable pitch plates 47 arranged in parallel inside the support frame 42. The plurality of variable pitch plates 47 are arranged in ascending order of length inside the support frame 42, and the surface of the variable pitch plate 47 is screwed with a temperature sensor 1 410, and the surface of the cold chamber of the detection chamber 1 is screwed with a temperature sensor 2 411.

[0033] In this embodiment: after the sealing treatment of the door and window 5 to be tested is completed, the temperature of the cold room in the detection chamber 1 is lowered by starting the refrigerator 311, and the humidity of the hot room in the detection chamber 1 is controlled by starting the dehumidifier 312 to ensure the stability of the detection environment, so as to accurately measure the thermal insulation performance of the door and window, and then the variable pitch cylinder 46 is started, and the variable pitch cylinder 46 drives a group of variable pitch plates 47 fixed at its output end to move, and drives other variable pitch plates 47 to move synchronously through the cross-arranged hinge rods 48, so as to adjust the spacing between multiple groups of variable pitch plates 47. During this period, the positioning slider 49 on the lower surface of the variable pitch plate 47 slides inside the support frame 42 to ensure the stability of the variable pitch plate 47 during the movement. Through the movement of the variable pitch plate 47, the temperature sensor 410 on its surface can be driven to move synchronously, so that multiple temperature sensors 410 are pushed to positions at different distances from the door and window 5 to be tested, respectively, so that the temperature at multiple different positions of the door and window 5 to be tested can be detected in the hot chamber.

[0034] In an optional embodiment: the surface of the support frame 42 is screwed connected to a pitch cylinder 46, the output end of the pitch cylinder 46 is fixedly connected to one group of multiple pitch plates 47 located on one side, and one group of multiple pitch plates 47 located on the other side is fixedly connected to the inner wall surface of the support frame 42, the lower surface of the middle pitch plate 47 is fixed with a positioning slider 49, the positioning slider 49 is slidably connected to the inside of the support frame 42, and the multiple pitch plates 47 are connected by cross-arranged hinge rods 48, the inside of the support frame 42 is fixed with a threaded plate 43, the internal thread of the threaded plate 43 is connected to a screw rod 44, and the screw rod 44 is rotatably connected to the surface of the detection chamber 1, the surface of the detection chamber 1 is screwed connected to a moving motor 45, and the output end of the moving motor 45 is fixedly connected to one end of the screw rod 44.

[0035] In this implementation scheme: after measuring the thermal insulation performance data at a group of positions, the moving motor 45 is started to drive the screw rod 44 to rotate, and then the threaded plate 43 is driven to move, thereby driving the support frame 42 to move on the moving track 41, and the positions of multiple groups of temperature sensors 410 in the thermal chamber of the detection chamber 1 can be adjusted to achieve temperature measurement of the doors and windows 5 to be tested at different positions in the thermal chamber, thereby comprehensively testing the thermal insulation performance of the doors and windows 5 to be tested.

[0036] Working principle and use process of the present invention: When it is necessary to test the thermal insulation performance of the door and window 5 to be tested, first align the bottom edge and side edge of the door and window 5 to be tested with the fixed bottom plate 31 and the fixed vertical plate 32 respectively, and insert them into the fixed bottom plate 31 and the fixed vertical plate 32. By inserting the door and window 5 to be tested, the sealing gasket 315 can be squeezed to push the squeezing plate 314 to compress the spring 313 to deform and generate elastic force, so that the bottom edge and side edge of the door and window 5 to be tested are respectively tightly fitted inside the fixed bottom plate 31 and the fixed vertical plate 32, which can not only realize the preliminary clamping and fixing of the door and window 5 to be tested, but also can realize the preliminary clamping and fixing of the door and window 5 to be tested. A preliminary seal is performed between the fixed bottom plate 31 and the fixed vertical plate 32, and then the lifting cylinder 33 is started, and the lifting cylinder 33 pulls the top plate 34 and its internal auxiliary structure to move downward synchronously, and approaches the top edge of the door and window 5 to be tested. When the sealing gasket 315 inside the top plate 34 contacts the surface of the door and window 5 to be tested, under the action of the spring 313, it will also be closely attached to the surface of the door and window 5 to be tested, so as to fix and seal the top of the door and window 5 to be tested. During this period, by moving the top plate 34 downward, when the top plate 34 contacts the top of the side plate 35, it can press down and drive the side plate 35 to be tested. The push-pull cylinder 36 slides inside the fixed bottom plate 31, thereby driving the push-pull cylinder 36 to move downward along the surface of the yield track 37. When the top plate 34 is in close contact with the top of the door and window 5 to be tested, the lifting cylinder 33 is closed and the push-pull cylinder 36 is started. The push-pull cylinder 36 pulls the side plate 35 and its internal auxiliary structure to move toward the side of the door and window 5 to be tested. Similarly, when the sealing gasket 315 inside the side plate 35 contacts the surface of the door and window 5 to be tested, it will also be closely attached to the surface of the door and window 5 to be tested, so as to fix and seal the side of the door and window 5 to be tested. For example, according to the size of the door and window 5 to be tested, The positions of the top plate 34 and the side plates 35 can be quickly adjusted to achieve accurate positioning and fixation of the door and window 5 to be tested, which greatly improves the versatility of the detection device and reduces the trouble of replacing the installation structure due to the different sizes of the door and window 5 to be tested. The stability of the door and window 5 to be tested during the detection process is ensured through multi-directional fixing methods, ensuring the smooth progress of the detection process and the reliability of the detection data. At the same time, the surface of the door and window 5 to be tested can be well initially sealed, thereby preventing the leakage of cold and hot air between the door and window 5 to be tested and the installation structure, thereby ensuring the accuracy of the detection result.

[0037] It is worth noting that when the top plate 34 approaches the surface of the door and window 5 to be tested, when the top plate 34 contacts the sealing gasket 315 inside the fixed vertical plate 32, it can push the sealing gasket 315 to slide along the surface of the extrusion plate 314 and the inside of the fixed vertical plate 32, thereby driving the fixed plate 316 at its end to move, and stretching the tension spring 317 to deform and generate elastic force, so as to make way for the movement of the top plate 34 and maintain the tight fit between the sealing gasket 315 inside the top plate 34 and the door and window 5 to be tested. Similarly, when the side plate 35 moves toward the surface of the door and window 5 to be tested, it will also push the sealing gasket 315 inside the fixed bottom plate 31 to slide, so as to make way for the movement of the side plate 35 and maintain the tight fit between the sealing gasket 315 inside the side plate 35 and the door and window 5 to be tested.

[0038] Furthermore, after the installation and fixation of the door and window 5 to be tested is completed, the air pump 39 is started, and then the air pump 39 inflates each inflatable sealing strip 38 through the air pipe 310 to expand it, thereby adaptively filling all gaps between the door and window 5 to be tested and the fixed bottom plate 31, the fixed vertical plate 32, the top plate 34 and the side plate 35, thereby ensuring that a tight seal is achieved at each edge of the door and window, further improving the sealing effect, avoiding the possibility of cold and hot air leaking through any tiny gaps, ensuring the stability of the detection environment, and allowing the entire detection process to be carried out in an ideal environment, avoiding data deviations caused by poor sealing, and improving the credibility of the detection results.

[0039] Furthermore, after the sealing treatment of the door and window 5 to be tested is completed, the temperature of the cold room in the detection room 1 is lowered by starting the refrigerator 311, and the humidity of the hot room in the detection room 1 is controlled by starting the dehumidifier 312 to ensure the stability of the detection environment, so as to accurately measure the thermal insulation performance of the door and window, and then the variable pitch cylinder 46 is started, and the variable pitch cylinder 46 drives a group of variable pitch plates 47 fixed at its output end to move, and the cross-arranged hinge rods 48 drive other variable pitch plates 47 to move synchronously, so as to adjust the spacing between the multiple groups of variable pitch plates 47. During this period, the positioning slider 49 on the lower surface of the variable pitch plate 47 is inside the support frame 42. Sliding ensures the stability of the variable pitch plate 47 during movement. Through the movement of the variable pitch plate 47, the temperature sensor 410 on its surface can be driven to move synchronously, so that multiple temperature sensors 410 are pushed to positions at different distances from the door and window 5 to be tested, respectively. The temperature at multiple different positions of the door and window 5 to be tested can be detected in the heat chamber, avoiding the one-sidedness of the data caused by a single measuring point, and being able to obtain the temperature distribution in the heat chamber more comprehensively, which is helpful to more accurately evaluate the thermal insulation performance of the door and window 5 to be tested at different positions, and provide more detailed data support for the design and improvement of doors and windows.

[0040] After measuring the thermal insulation performance data at a group of positions, the moving motor 45 is started to drive the screw rod 44 to rotate, and then the threaded plate 43 is driven to move, thereby driving the support frame 42 to move on the moving track 41, and the positions of the multiple groups of temperature sensors 410 in the thermal chamber of the detection chamber 1 can be adjusted to achieve temperature measurement of the doors and windows 5 to be tested at different positions in the thermal chamber, thereby comprehensively testing the thermal insulation performance of the doors and windows 5 to be tested, effectively avoiding the limitations of single-position detection, and comprehensively covering multiple key areas in the thermal chamber, greatly improving the comprehensiveness of the detection, so as to accurately capture the thermal insulation performance of the doors and windows 5 to be tested in different areas, and ensure that the test results can more truly reflect the thermal insulation efficiency of the doors and windows in actual use scenarios.

[0041] It is worth noting that the temperature sensor 411 on the surface of the cold chamber of the detection chamber 1 is used to measure the temperature of the cold chamber. The temperature data of the doors and windows 5 to be tested at different positions in the hot chamber are obtained through the temperature sensor 410. Combined with the stable temperature conditions of the cold chamber, the heat transfer conditions of the doors and windows 5 to be tested at different positions can be accurately compared and analyzed, and then the thermal insulation performance characteristics of the doors and windows 5 to be tested can be comprehensively evaluated and understood.

[0042] The above description only describes the specific implementation mode of the present invention. Various examples do not limit the essential content of the present invention. After reading the description, ordinary technicians in the relevant technical field can modify or deform the specific implementation modes described above without departing from the essence and scope of the invention.

Claims

1. A door and window thermal insulation performance testing device, comprising a testing chamber (1), a heat insulation blocking plate (2) fixed inside the testing chamber (1), and a door and window to be tested (5) arranged on one side of the heat insulation blocking plate (2), characterized in that: It also includes an installation component (3) installed between the heat insulation blocking plate (2) and the door and window to be tested (5); The mounting assembly (3) comprises a fixed bottom plate (31) fixed to the bottom of the side of the heat insulation blocking plate (2), a fixed vertical plate (32) fixed to one side of the upper surface of the fixed bottom plate (31), and an inflatable sealing strip (38) fixed inside the fixed bottom plate (31); the fixed bottom plate (31) is slidably connected to a side plate (35) arranged parallel to the fixed vertical plate (32); the fixed vertical plate (32) is slidably connected to a top plate (34) arranged parallel to the fixed bottom plate (31); and the fixed vertical plate (32), the top plate (34) and the side plate (35) are all fixed with an inflatable sealing strip (38) having the same structure as that inside the fixed bottom plate (31); the surface of the heat insulation blocking plate (2) is screwed with an inflatable pump (39); and an air supply pipe (310) is connected between the output end of the inflatable pump (39) and the plurality of groups of inflatable sealing strips (38).

2. The door and window thermal insulation performance detection device according to claim 1, characterized in that: The heat-insulating blocking plate (2) divides the detection chamber (1) into a cold chamber and a hot chamber. A refrigerator (311) is fixed to the side of the outer surface of the detection chamber (1) close to the cold chamber, and a dehumidifier (312) is fixed to the side of the outer surface of the detection chamber (1) close to the hot chamber. A lifting cylinder (33) is screwed to the surface of the fixed vertical plate (32), and the output end of the lifting cylinder (33) is fixedly connected to the surface of the top plate (34). A push-pull cylinder (36) is provided at the bottom of the fixed bottom plate (31), and the output end of the push-pull cylinder (36) is fixedly connected to the surface of the side plate (35), and the push-pull cylinder (36) and the fixed bottom plate (31) are slidably connected via a yield track (37).

3. The door and window thermal insulation performance detection device according to claim 1, characterized in that: A plurality of groups of springs (313) arranged at equal distances are symmetrically fixed on both sides of the interior of the fixed bottom plate (31), and extrusion plates (314) are respectively fixed on opposite sides of the two groups of springs (313). Sealing pads (315) are abutted on opposite sides of the two groups of extrusion plates (314), and a clearance groove matched with the sealing pad (315) is provided inside the fixed bottom plate (31), and sealing pads (315) and their auxiliary structures having the same structure as that inside the fixed bottom plate (31) are installed inside the fixed vertical plate (32), the top plate (34) and the side plate (35).

4. The door and window thermal insulation performance detection device according to claim 3, characterized in that: The sealing gaskets (315) inside the fixed bottom plate (31) and the fixed vertical plate (32) respectively penetrate the inside of the fixed bottom plate (31) and the fixed vertical plate (32), and respectively extend to the outside of the fixed bottom plate (31) and the fixed vertical plate (32), and are respectively fixedly connected to the fixed plates (316) arranged on the outside of the fixed bottom plate (31) and the fixed vertical plate (32), and tension springs (317) are respectively fixed between the two groups of the fixed plates (316) and the fixed bottom plate (31) and the fixed vertical plate (32).

5. The door and window thermal insulation performance detection device according to claim 2, characterized in that: It also includes a temperature measuring component (4) installed inside the detection chamber (1), the temperature measuring component (4) including two groups of movable tracks (41) fixed on the floor of the hot chamber of the detection chamber (1), a support frame (42) slidably connected between the two groups of movable tracks (41), and a plurality of variable pitch plates (47) arranged in parallel inside the support frame (42), the plurality of variable pitch plates (47) are arranged inside the support frame (42) in an order of increasing length, and the surface of the variable pitch plates (47) is screwed to a temperature sensor 1 (410), and the surface of the cold chamber of the detection chamber (1) is screwed to a temperature sensor 2 (411).

6. The door and window thermal insulation performance detection device according to claim 5, characterized in that: The surface of the support frame (42) is screw-connected with a pitch-changing cylinder (46), the output end of the pitch-changing cylinder (46) is fixedly connected to a group of pitch-changing plates (47) located on one side, and a group of pitch-changing plates (47) located on the other side is fixedly connected to the inner wall surface of the support frame (42), and a positioning slider (49) is fixed to the lower surface of the middle pitch-changing plate (47), and the positioning slider (49) is slidably connected to the inside of the support frame (42), and the multiple groups of pitch-changing plates (47) are connected by cross-arranged hinge rods (48).

7. The door and window thermal insulation performance detection device according to claim 5, characterized in that: A threaded plate (43) is fixed inside the support frame (42), and a screw rod (44) is connected to the internal thread of the threaded plate (43), and the screw rod (44) is rotatably connected to the surface of the detection chamber (1). A movable motor (45) is screwed to the surface of the detection chamber (1), and the output end of the movable motor (45) is fixedly connected to one end of the screw rod (44).

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