Equipment for detecting thermal insulation performance of doors and windows

Abstract

The invention relates to the field of thermal insulation detection equipment, and discloses door and window thermal insulation performance detection equipment. The detection frame is arranged on the base; the storage opening is formed in the detection frame and is used for placing doors and windows; the method can effectively solve the problem that a traditional heat preservation test method cannot comprehensively reflect the heat preservation performance of doors and windows under the dynamic alternate cooling and heating condition. A traditional test is generally carried out only in a single cold and hot environment, and the comprehensive influence of temperature difference change on the overall heat insulation effect of doors and windows is ignored. The device simulates the dynamic climate change possibly encountered in the actual use of the door and window through the arrangement of the alternate cold and hot cavities, and comprehensively evaluates the thermal insulation and cold insulation performance of the door and window under extreme weather conditions. According to the technical scheme, position alternation of the cold cavity and the hot cavity is achieved by rotating the connecting disc, the two sides of the door and window can be exposed to different environmental conditions, and independent detection of thermal insulation performance and cold insulation performance is conducted.

Description

Technical Field

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

[0002] With the continuous improvement of building energy-saving requirements, the thermal insulation performance of doors and windows has become a key indicator in building energy-saving design. The quality of thermal insulation performance is directly related to the energy consumption level of the building and the comfort of the indoor environment. How to accurately and efficiently test the thermal insulation performance of doors and windows has become one of the core issues in the door and window manufacturing and testing industry.

[0003] Traditional testing methods mostly use steady-state heat transfer methods or hot box methods, which are usually tested under a single constant temperature difference condition, and it is difficult to simulate the heat transfer characteristics under a dynamic alternating hot and cold environment. Although existing technologies can detect the thermal insulation performance of doors and windows to a certain extent, most methods cannot fully reflect the thermal insulation performance of doors and windows under dynamic alternating hot and cold conditions, and dynamic conditions are often closer to actual usage scenarios. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a door and window thermal insulation performance testing device, aiming to alleviate the above-mentioned problems at least to a certain extent.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A door and window thermal insulation performance testing device, comprising: Base; A detection frame arranged on the base; A storage opening provided on the detection frame is used for placing doors and windows; A cover is provided at the top and bottom of the base, and an air outlet is provided on one side of the cover; An elastic plate disposed in the cover, wherein an elastic frame is disposed on the elastic plate; A connection plate provided on one side of the detection frame, wherein a cold pipe and a hot pipe are provided on the connection plate, wherein the cold pipe is connected to one of the sealing covers, and the hot pipe is connected to the other sealing cover; A plurality of temperature detectors are arranged in the cover, wherein the detection ends of the temperature detectors face the detection frame; A heating unit and a refrigeration unit are arranged on the base, the air outlet end of the heating unit is connected to the heat pipe, and the air outlet end of the refrigeration unit is connected to the cold pipe; A detection component disposed between the connection disk and the temperature detector, used to move the temperature detector, wherein the detection component can drive the temperature detector to move along a predetermined path when the connection disk is rotated; The moving component disposed between the base and the cover is used to move the cover up and down so that the cover is buckled with the detection frame.

[0006] Preferably, a groove is provided in the air outlet, a connecting port is provided on one side of the groove, an airbag is provided in the groove, a sealing frame is also provided in the groove, and the airbag is filled with inert gas.

[0007] Preferably, the connection disk is provided with two connection openings; The heat pipe comprises a connecting pipe a rotatably connected to one of the connecting openings, a connecting pipe b is slidably connected to the connecting pipe a, and the connecting pipe b is rotatably connected to the air outlet end of the heating unit; The cold pipe includes a connecting pipe c rotatably connected to another connecting opening, a connecting pipe d is slidably connected to the connecting pipe c, and the connecting pipe d is rotatably connected to the air outlet end of the refrigeration unit.

[0008] Preferably, a baffle is connected to the detection frame, an air inlet is formed on the baffle, and the air inlet is communicated with the connection opening.

[0009] Preferably, the detection component includes a slide rail a connected to the cover, the bottom of the slide rail a is connected to a slide rail b, the slide rail a is slidably connected to a connecting rod, the bottom of the connecting rod is connected to a connecting frame mounted on the slide rail b, the temperature detector is connected to the connecting frame, a spring a is connected between the connecting rod and the slide rail a, a gear a is connected to the connecting disk, one side of the gear a is meshed with a gear b, a traction rope is wound on the gear b, one end of the traction rope is connected to the connecting rod, and a motor a is connected to the detection frame, and the drive shaft of the motor a is connected to the connecting disk.

[0010] Preferably, the connecting frame is slidably connected to the connecting rod, and a spring b is connected between the connecting frame and the connecting rod; The slide rail b includes two straight sections a, one straight section b and two inclined sections. The two inclined sections are connected to the straight section b, the straight section a is connected to the inclined section, and the straight section a is connected to the slide rail a.

[0011] Preferably, a connecting groove is provided on the connecting disk, the gear a is provided in the connecting groove, the gear b is embedded in the connecting groove and meshes with the gear a, the cover is rotatably connected to a connecting shaft, the gear b is slidably connected to the connecting shaft, and the traction rope is wound around the connecting shaft.

[0012] Preferably, slide grooves are respectively provided on both sides of the interior of the cover; The elastic plate comprises a sealing plate slidably connected to the slide groove, and a spring c is connected between the sealing plate and the slide groove; The elastic frame comprises a sealing frame slidably connected to the sealing plate, and a spring d is connected between the sealing frame and the sealing plate.

[0013] Preferably, an overflow port is opened on one side of the connecting pipe a and the connecting pipe c, and a bracket is connected inside the connecting pipe a and the connecting pipe c. A connecting rod is slidably connected to the bracket, one end of the connecting rod passes through the overflow port and is connected to a blocking block, and a spring e is connected between the connecting rod and the bracket.

[0014] Preferably, the moving component includes a screw rotatably connected to the detection frame, the two sealing covers are threadedly connected to the screw, a motor b is connected to the base, and a driving shaft of the motor b is connected to the screw.

[0015] In summary, the present invention mainly has the following beneficial effects: This application can effectively solve the problem that traditional thermal insulation test methods cannot fully reflect the thermal insulation performance of doors and windows under dynamic alternating hot and cold conditions. Traditional tests are usually only conducted in a single hot and cold environment, ignoring the comprehensive impact of temperature differences on the overall thermal insulation effect of doors and windows. This device simulates the dynamic climate changes that doors and windows may encounter in actual use by setting up alternating hot and cold cavities, and comprehensively evaluates the thermal and cold insulation performance of doors and windows under extreme weather conditions.

[0016] The technical solution of this application realizes the alternation of the hot and cold cavity positions by rotating the connecting plate, which can expose both sides of the door and window to different environmental conditions, and perform independent tests on thermal insulation and cold insulation performance. This design enables the equipment to comprehensively examine the performance of doors and windows in environments such as alternating hot and cold, seasonal changes, etc., which is more in line with the needs of actual use, thereby providing a more accurate and reliable evaluation of thermal insulation performance.

[0017] In addition, by simulating real cold and hot weather conditions through the output of the heating and cooling units, the equipment can effectively measure the thermal insulation capacity of door and window components. In a cold environment, detecting the temperature change rate and stable value of the hot cavity can reflect the heat loss of the door and window components and evaluate their thermal insulation performance; while in a hot environment, detecting the temperature change in the cold cavity can also evaluate the insulation capacity of the door and window components against cold air. By independently detecting the temperature on both sides, this device can accurately identify the uneven thermal insulation performance of doors and windows, thereby providing data support for improving product design and further improving the overall quality of doors and windows.

[0018] In short, the present invention can more realistically and accurately evaluate the thermal insulation performance of doors and windows through comprehensive and dynamic cold and hot environment simulation, which not only meets the industry's high standards for product performance, but also provides door and window manufacturers with a more scientific testing method. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the base structure of the present invention; Figure 3 It is a schematic diagram of the structure of the detection frame of the present invention; Figure 4 It is a schematic diagram of the sealing structure of the present invention; Figure 5 It is a schematic diagram of the airbag structure of the present invention; Figure 6 It is a schematic diagram of the structure of the detection component of the present invention; Figure 7 It is a schematic diagram of the connection disk structure of the present invention; Figure 8 It is a schematic diagram of the cold pipe and heat pipe structure of the present invention; Fig. 9 yes Figure 8 A schematic diagram of the enlarged local structure at point A in the middle.

[0020] Reference numerals: 100, base; 101, detection frame; 102, storage port; 103, cover; 104, air outlet; 105, elastic plate; 106, elastic frame; 107, connection plate; 108, cold pipe; 109, heat pipe; 110, temperature detector; 111, heating unit; 112, refrigeration unit; 113, groove; 114, connection port; 115, air bag; 116, blocking frame; 200, connecting opening; 201, connecting pipe a; 202, connecting pipe b; 203, connecting pipe c; 204, connecting pipe d; 205, baffle; 206, air inlet; 300, slide rail a; 301, slide rail b; 302, connecting rod; 303, connecting frame; 304, spring a; 305, gear a; 306, gear b; 307, traction rope; 308, motor a; 309, spring b; 310, straight section a; 311, straight section b; 312, oblique section; 313, connecting groove; 314, connecting shaft; 400, slide groove; 401, sealing plate; 402, spring c; 403, sealing frame; 404, spring d; 500, overflow port; 501, bracket; 502, connecting rod; 503, blocking block; 504, spring e; 600, lead screw; 601, motor b. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] refer to Figure 1-Figure 9 , a door and window thermal insulation performance testing device, comprising: Base 100; A detection frame 101 disposed on the base 100; The storage opening 102 provided on the detection frame 101 is used for placing doors and windows; A cover 103 is provided at the top and bottom of the base 100, and an air outlet 104 is provided on one side of the cover 103; An elastic plate 105 is disposed in the cover 103, and an elastic frame 106 is disposed on the elastic plate 105; A connection plate 107 is provided on one side of the detection frame 101, and a cold pipe 108 and a heat pipe 109 are provided on the connection plate 107. The cold pipe 108 is connected to one of the sealing covers 103, and the heat pipe 109 is connected to the other sealing cover 103; A plurality of temperature detectors 110 are disposed in the cover 103, and the detection ends of the temperature detectors 110 face the detection frame 101; A heating unit 111 and a cooling unit 112 are provided on the base 100, the air outlet of the heating unit 111 is connected to the heat pipe 109, and the air outlet of the cooling unit 112 is connected to the cold pipe 108; A detection component disposed between the connection disk 107 and the temperature detector 110, used to move the temperature detector 110, and the detection component can drive the temperature detector 110 to move along a predetermined path when the connection disk 107 is rotated; A moving component disposed between the base 100 and the cover 103, used to move the cover 103 up and down so that the cover 103 is engaged with the detection frame 101; By setting up the detection frame 101, when in use, the operator can place the doors and windows that need to be tested for thermal insulation in the storage port 102, and then move the positions of the two covers 103 through the moving parts, one cover 103 moves downward, and the other cover 103 moves upward, so as to be buckled on the detection frame 101, and the elastic plate 105 and the elastic frame 106 are set to move with the cover 103, and the elastic frame 106 can contact the doors and windows. The door and window parts act as partitions, and the space inside the two covers 103 can form two cavities. When conducting thermal insulation testing, the heating unit 111 and the refrigeration unit 112 can be turned on. The hot air generated by the heating unit 111 can enter a cavity below the door and window components through the heat pipe 109, and the cold air generated by the refrigeration unit 112 can enter a cavity above the door and window components through the cold pipe 108. When conducting thermal insulation testing, the hot air blown out by the heating unit 111 can be twenty-five degrees Celsius, and the cold air blown out by the refrigeration unit 112 can be zero degrees Celsius. When the overall temperature in the lower cover 103 reaches twenty-five degrees Celsius, the hot air unit can be stopped to stop the output of hot air, and the refrigeration unit 112 can continue to work to simulate cold weather. After stopping the hot air unit for a suitable period of time, the connection disk 107 can be rotated to allow the detection component to move the position of the temperature detector 110. The temperature detector 110 moves along a predetermined path. When the temperature detector 110 moves to the position of the door and window components, it will move toward the door and window components to allow the temperature detector 110 to be closer to the door and window components to detect the ambient temperature. At this time, the temperature value in the heat cavity in the lower cover 103 can be taken as a reference to detect the performance of heat preservation in cold weather. After the connection disk 107 rotates to a preset angle, the end of the heat pipe 109 follows the connection disk 107 to rotate to the upper cover 103 and communicate with the upper cover 103. The end of the cold pipe 108 follows the connection disk 107 to rotate to the lower cover 103 and communicate with the lower cover 103. At this time, the heating unit 111 is turned on again to blow hot air into the upper cover 103. When the overall temperature in the upper cover 103 reaches thirty-five degrees Celsius, the hot air unit can be stopped to stop the output of hot air, and the refrigeration unit 112 continues to work to simulate hot weather. After stopping the hot air unit for an appropriate time, rotate the connecting disk 107 again to reset the mobile temperature detector 110 through the detection component, and the temperature detector 110 is reset to the origin along a predetermined path. In this process, the current temperature in the heat cavity can be referenced to determine the temperature decay rate, so as to evaluate the performance of the door and window components in isolating cold air in a hot environment. By comparing and analyzing the test results under two environmental conditions, the overall thermal insulation performance of the door and window components can be comprehensively evaluated. Specifically, in the thermal insulation test, the temperature value of the heat cavity is used as an important benchmark reference to evaluate the thermal isolation effect of the door and window components. The heat cavity in one of the covers 103 simulates an environment under cold weather conditions, and the temperature in the heat cavity should be kept as stable as possible to reflect the heat loss in this environment.By recording the temperature change of the heat cavity, the insulation performance of the door and window components can be calculated. The base reference temperature is usually set at about 25°C because this is a common warm indoor environment temperature and can represent the actual temperature in most buildings. When testing a cold environment, the cold air unit simulates a low temperature (e.g., 0°C) and the hot air unit simulates a normal indoor temperature. During the cold weather test, the heating unit 111 heats and sends hot air into one cavity, while the cold air unit blows cold air into another cavity to simulate the temperature difference between the inside and outside of the door and window. Detecting the temperature value of the heat cavity can understand how the heat decays over time after the hot air stops being output. The temperature change rate and the final stable value are key parameters for measuring thermal insulation performance. If the temperature of the heat cavity remains unchanged for a long time or decays slowly, it means that the door and window components have a good insulation effect on the external environment temperature and excellent thermal insulation performance. On the contrary, if the temperature decays quickly, it means that the thermal insulation effect of the door and window components is poor, which is easy to cause heat loss. In addition, by rotating the connection disk 107, the positions of the ends of the cold pipe 108 and the heat pipe 109 are alternated, so that the positions of the cold and hot cavities can be switched, thereby independently testing the heat preservation and cold insulation performance of the doors and windows on both sides. Specifically, the positions of the alternating cold and hot cavities can help the test equipment simulate different environmental conditions and comprehensively evaluate the heat insulation effect of the doors and windows on both sides. By rotating the connection disk 107, the end of the cold pipe 108 enters the area that was originally the hot cavity, and the end of the heat pipe 109 enters the area that was originally the cold cavity. In this way, the output positions of the hot and cold air will change, thereby simulating the alternation of the hot and cold environments. Whenever the connection disk 107 rotates, the device can switch the supply positions of the cold air and the hot air. In this way, the test system can expose both sides of the door and window components to the hot environment and the cold environment respectively for comparative testing. This design enables the performance of the same door and window components under different conditions to be fully examined. It is worth noting that testing one side of the door and window alone cannot fully evaluate its overall performance in actual use. The thermal insulation performance of doors and windows is jointly determined by the temperature difference on both sides, especially under extreme climatic conditions. High temperature on one side may affect the heat conduction of doors and windows, while low temperature on the other side may accelerate heat loss. During the manufacturing process of doors and windows, the thermal insulation performance on both sides may be inconsistent due to differences in process, material thickness, coating uniformity or sealing strip installation quality. Testing the performance on both sides separately can discover these problems and improve them, thereby improving product quality. By conducting independent tests on both sides, we can more accurately understand how doors and windows maintain temperature stability in two extreme environments and effectively block the transfer of heat. The present application can solve the problem that traditional testing methods cannot fully reflect the thermal insulation performance of doors and windows under dynamic alternating hot and cold conditions. Traditional tests usually only consider a single hot and cold environment, without considering the comprehensive impact of temperature difference changes on the overall thermal insulation effect of doors and windows.In actual use, doors and windows are exposed to constantly changing environmental conditions, such as changes in external temperature and seasonal changes. Therefore, a single static temperature test cannot accurately evaluate the actual performance of doors and windows.

[0023] As a further solution of the present invention, a groove 113 is provided in the air outlet 104, a connection port 114 is provided on one side of the groove 113, an air bag 115 is provided in the groove 113, a blocking frame 116 is also provided in the groove 113, and the air bag 115 is filled with an inert gas; By setting a groove 113, a connection port 114, an airbag 115 and a blocking frame 116 in the air outlet 104 of the cover 103, an automatic sealing device based on temperature change is innovatively designed to improve the sealing of the system. Specifically, when the temperature in the cover 103 reaches the set 25 or 35 degrees Celsius, the temperature detector 110 detects that the temperature in the cover 103 reaches the preset value, and the operator can turn off the heating unit 111. It should be clear that the expansion process of the airbag 115 cannot be directly used to detect the temperature in the cover 103. Specifically, the expansion of the airbag 115 is a physical reaction caused by external temperature changes, and the temperature detector 110 is responsible for real-time monitoring of the temperature changes in the cover 103. The expansion of the airbag 115 occurs automatically after the temperature reaches the set value through the principle of thermal expansion and contraction of inert gas. The purpose is to enable the cold air in the cover 103 to be discharged in time when the hot air unit is outputting hot air, and to close the air outlet 104 in time after the discharge. The temperature in the cover 103 can reach a preset value as quickly as possible. This mechanism avoids human intervention in the closing of the air outlet 104 and can improve efficiency to a certain extent during detection.

[0024] As a further solution of the present invention, two connection openings 200 are provided on the connection disk 107; The heat pipe 109 includes a connecting pipe a201 rotatably connected to one of the connecting openings 200, a connecting pipe b202 is slidably connected to the connecting pipe a201, and the connecting pipe b202 is rotatably connected to the air outlet end of the heating unit 111; The cold pipe 108 includes a connecting pipe c203 rotatably connected to another connecting opening 200, a connecting pipe d204 is slidably connected to the connecting pipe c203, and the connecting pipe d204 is rotatably connected to the air outlet end of the refrigeration unit 112; By providing the connection disk 107 and the connection opening 200 thereon, and the sliding connection pipe design, the system can realize the relative position conversion of the heat pipe 109 and the cold pipe 108. When the connection disk 107 rotates 160 degrees, the connection pipe a201 and the connection pipe c203 respectively drive the ends of the heat pipe 109 and the cold pipe 108 to change their positions, so that the positions of the heat pipe 109 and the cold pipe 108 are alternated.

[0025] As a further solution of the present invention, a baffle 205 is connected to the detection frame 101, and an air inlet 206 is opened on the baffle 205, and the air inlet 206 is connected to the connection opening 200; By setting the baffle 205, when the connecting disk 107 rotates, the connecting opening 200 and the air inlet 206 on the baffle 205 are staggered. When the connecting disk 107 has not rotated to the preset angle, the baffle 205 can close the cold pipe 108 and the hot pipe 109 to block the gas transmission, thereby preventing the output of cold air from affecting the detection result when the detection component moves the temperature detector 110.

[0026] As a further solution of the present invention, the detection component includes a slide rail a300 connected to the cover 103, the bottom of the slide rail a300 is connected to the slide rail b301, the slide rail a300 is slidably connected to a connecting rod 302, the bottom of the connecting rod 302 is connected to a connecting frame 303 sleeved with the slide rail b301, the temperature detector 110 is connected to the connecting frame 303, a spring a304 is connected between the connecting rod 302 and the slide rail a300, a gear a305 is connected to the connecting disk 107, a gear b306 is meshed with one side of the gear a305, a traction rope 307 is wound on the gear b306, one end of the traction rope 307 is connected to the connecting rod 302, a motor a308 is connected to the detection frame 101, and the drive shaft of the motor a308 is connected to the connecting disk 107; By setting the meshing relationship between the gear a305 and the gear b306, the temperature detector 110 can be accurately moved on the slide rail a300. When the connecting disk 107 rotates, the gear a305 drives the gear b306 to rotate, and the gear b306 pushes the connecting rod 302 to slide along the slide rail a300 through the winding action of the traction rope 307. The movement of the connecting rod 302 causes the connecting frame 303 and the temperature detector 110 connected thereto to move along a predetermined path, thereby achieving the purpose of detecting the temperature around the door and window components. In addition, the motor a308 provided can be a motor a308 with a self-locking function, which can provide a driving force for the rotation of the connecting disk 107 and maintain the angle of the connecting disk 107 in a power-off or shutdown state, so as to reset the position of the temperature detector 110 after replacing the cold and hot cavity detection for the second time, and perform a secondary detection.

[0027] As a further solution of the present invention, the connecting frame 303 is slidably connected to the connecting rod 302, and a spring b309 is connected between the connecting frame 303 and the connecting rod 302; The slide rail b301 includes two straight sections a310, one straight section b311 and two inclined sections 312. The two inclined sections 312 are connected to the straight section b311. The straight section a310 is connected to the inclined section 312. The straight section a310 is connected to the slide rail a300. By setting the slide rail b301, when the connecting rod 302 moves due to the force of the traction rope 307, the connecting frame 303 slides on the slide rail b301 and moves along the path of the slide rail b301. When the temperature probe 110 is about to reach the door and window components, it will be guided by the inclined section 312, allowing the temperature probe 110 to be closer to the door and window components, thereby further improving the accuracy and reliability of the test.

[0028] As a further solution of the present invention, a connecting groove 313 is provided on the connecting disk 107, a gear a305 is provided in the connecting groove 313, a gear b306 is embedded in the connecting groove 313 and meshes with the gear a305, a connecting shaft 314 is rotatably connected to the cover 103, the gear b306 is slidably connected to the connecting shaft 314, and a traction rope 307 is wound around the connecting shaft 314; By setting the connecting groove 313, the gear b306 is embedded in the connecting groove 313, which can limit the position of the gear b306. When the cover 103 is moved away from the detection frame 101 to access the door and window parts, the connecting groove 313 limits the position of the gear b306, and the connecting shaft 314 slides on the gear b306. The purpose of this setting is that before and after the cover 103 is moved, the gear b306 can always be engaged with the gear a305, which will not affect the subsequent detection process.

[0029] As a further solution of the present invention, slide grooves 400 are respectively provided on both sides of the interior of the cover 103; The elastic plate 105 includes a sealing plate 401 slidably connected to the slide groove 400, and a spring c402 is connected between the sealing plate 401 and the slide groove 400; The elastic frame 106 includes a sealing frame 403 slidably connected to the sealing plate 401, and a spring d404 is connected between the sealing frame 403 and the sealing plate 401; By setting the slide groove 400, the sealing plate 401, the spring c402, the elastic frame 106, the sealing frame 403 and other designs, the system can effectively ensure the sealing between the inner cavity of the cover 103 and the door and window components. Specifically, the slide grooves 400 are set on both sides of the interior of the cover 103, and the sealing plate 401 is slidably connected in these slide grooves 400. The design of the slide groove 400 allows the sealing plate 401 to move freely within a certain range, and the sealing frame 403 can move from right to left within a certain range in the sealing plate 401 to adapt to door and window components of different sizes or shapes. And prevent gas or temperature leakage.

[0030] As a further solution of the present invention, an overflow port 500 is provided on one side of the connecting pipe a201 and the connecting pipe c203, a bracket 501 is connected inside the connecting pipe a201 and the connecting pipe c203, a connecting rod 502 is slidably connected to the bracket 501, one end of the connecting rod 502 passes through the overflow port 500 and is connected to a blocking block 503, and a spring e504 is connected between the connecting rod 502 and the bracket 501; By setting the spring e504, the spring e504 can limit the position of the connecting rod 502 and the blocking block 503, so that the blocking block 503 can close the overflow port 500. After the cold air in the hot cavity is discharged, or when the cold pipe 108 is switched to the hot cavity, the air bag 115 expands under the influence of the inert gas, and when the blocking frame 116 closes the air outlet 104, the entry of gas is hindered. At this time, if the gas is still continuously input, the air pressure in the cover 103 will increase, which can push the blocking block 503 to leave the overflow port 500. The overflow port 500 is opened, and after the gas enters the cover 103, it merges with the gas in the cover 103 to adjust the temperature in the cavity. Part of the fused gas can flow out from the overflow port 500, avoiding the pressure increase in the cavity due to the closure of the blocking frame 116, and the gas cannot continue to enter the cavity. Specifically, when the cover 103 is filled with hot air, the continuous entry of hot air can increase the temperature value in the cavity until it reaches a preset value (e.g., 25°C or 35°C). If the cover 103 is filled with cold air, the continuous entry of cold air can gradually replace the hot air, thereby effectively controlling the temperature change in the cavity and avoiding the problem of cold air being unable to enter due to the closure of the air outlet in the hot cavity.

[0031] As a further solution of the present invention, the moving part includes a lead screw 600 rotatably connected to the detection frame 101, two covers 103 are threadedly connected to the lead screw 600, a motor b601 is connected to the base 100, and a drive shaft of the motor b601 is connected to the lead screw 600; By providing a motor b601, the drive shaft of the motor b601 is connected to the lead screw 600, so that the cover 103 can be accurately moved. The motor b601 drives the lead screw 600 to rotate, driving the cover 103 to move along the thread track on the lead screw 600, thereby controlling the position of the cover 103. This design can ensure that the cover 103 can be opened and closed or adjusted accurately as needed during the detection process.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A door and window thermal insulation performance testing device, characterized in that: include: base(100); A detection frame (101) disposed on the base (100); A storage opening (102) provided on the detection frame (101) for placing doors and windows; A cover (103) is provided on the top and bottom of the base (100), and an air outlet (104) is provided on one side of the cover (103); An elastic plate (105) disposed in the sealing cover (103), wherein an elastic frame (106) is disposed on the elastic plate (105); A connection plate (107) provided on one side of the detection frame (101), a cold pipe (108) and a heat pipe (109) being provided on the connection plate (107), the cold pipe (108) being in communication with one of the sealing covers (103), and the heat pipe (109) being in communication with the other sealing cover (103); a plurality of temperature detectors (110) disposed in the sealing cover (103), wherein detection ends of the temperature detectors (110) face toward the detection frame (101); A heating unit (111) and a refrigeration unit (112) are arranged on the base (100), the air outlet end of the heating unit (111) being in communication with the heat pipe (109), and the air outlet end of the refrigeration unit (112) being in communication with the cold pipe (108); a detection component disposed between the connection disk (107) and the temperature detector (110), used to move the temperature detector (110), the detection component being capable of driving the temperature detector (110) to move along a predetermined path when the connection disk (107) is rotated; A moving component provided between the base (100) and the cover (103) is used to move the cover (103) up and down so as to allow the cover (103) to be buckled with the detection frame (101).

2. A door and window thermal insulation performance testing device according to claim 1, characterized in that: A groove (113) is provided in the air outlet (104), a connection port (114) is provided on one side of the groove (113), an air bag (115) is provided in the groove (113), a sealing frame (116) is also provided in the groove (113), and the air bag (115) is filled with an inert gas.

3. A door and window thermal insulation performance testing device according to claim 1, characterized in that: The connection disk (107) is provided with two connection openings (200); The heat pipe (109) comprises a connecting pipe a (201) rotatably connected to one of the connecting openings (200), a connecting pipe b (202) being slidably connected to the connecting pipe a (201), and the connecting pipe b (202) being rotatably connected to an air outlet end of the heating unit (111); The cold pipe (108) comprises a connecting pipe c (203) rotatably connected to another connecting opening (200), a connecting pipe d (204) being slidably connected to the connecting pipe c (203), and the connecting pipe d (204) being rotatably connected to the air outlet end of the refrigeration unit (112).

4. A door and window thermal insulation performance testing device according to claim 3, characterized in that: The detection frame (101) is connected to a baffle (205), an air inlet (206) is provided on the baffle (205), and the air inlet (206) is communicated with the connection opening (200).

5. The door and window thermal insulation performance testing device according to claim 1, characterized in that: The detection component comprises a slide rail a (300) connected to the cover (103); the bottom of the slide rail a (300) is connected to a slide rail b (301); a connecting rod (302) is slidably connected to the slide rail a (300); the bottom of the connecting rod (302) is connected to a connecting frame (303) sleeved with the slide rail b (301); the temperature detector (110) is connected to the connecting frame (303); the connecting rod (302) and the slide rail a (301) are slidably connected to the slide rail a (300); 00), a spring a (304) is connected between the connecting plate (107), a gear a (305) is connected to the connecting plate (107), one side of the gear a (305) is meshed with a gear b (306), a traction rope (307) is wound around the gear b (306), one end of the traction rope (307) is connected to the connecting rod (302), a motor a (308) is connected to the detection frame (101), and a drive shaft of the motor a (308) is connected to the connecting plate (107).

6. The door and window thermal insulation performance testing device according to claim 5, characterized in that: The connecting frame (303) is slidably connected to the connecting rod (302), and a spring b (309) is connected between the connecting frame (303) and the connecting rod (302); The slide rail b (301) comprises two straight sections a (310), one straight section b (311) and two inclined sections (312); the two inclined sections (312) are connected to the straight section b (311); the straight section a (310) is connected to the inclined section (312); and the straight section a (310) is connected to the slide rail a (300).

7. The door and window thermal insulation performance testing device according to claim 5, characterized in that: The connecting plate (107) is provided with a connecting groove (313), the gear a (305) is arranged in the connecting groove (313), the gear b (306) is embedded in the connecting groove (313) and meshes with the gear a (305), the cover (103) is rotatably connected to a connecting shaft (314), the gear b (306) is slidably connected to the connecting shaft (314), and the traction rope (307) is wound around the connecting shaft (314).

8. The door and window thermal insulation performance testing device according to claim 1, characterized in that: Slide grooves (400) are respectively provided on two sides of the interior of the cover (103); The elastic plate (105) comprises a sealing plate (401) slidably connected to the slide groove (400), and a spring c (402) is connected between the sealing plate (401) and the slide groove (400); The elastic frame (106) comprises a sealing frame (403) slidably connected to the sealing plate (401), and a spring d (404) is connected between the sealing frame (403) and the sealing plate (401).

9. The door and window thermal insulation performance testing device according to claim 3, characterized in that: An overflow port (500) is provided on one side of the connecting pipe a (201) and the connecting pipe c (203); a bracket (501) is connected inside the connecting pipe a (201) and the connecting pipe c (203); a connecting rod (502) is slidably connected to the bracket (501); one end of the connecting rod (502) passes through the overflow port (500) and is connected to a blocking block (503); and a spring e (504) is connected between the connecting rod (502) and the bracket (501).

10. The door and window thermal insulation performance testing device according to claim 1, characterized in that: The moving component comprises a lead screw (600) rotatably connected to the detection frame (101), the two cover covers (103) are threadedly connected to the lead screw (600), the base (100) is connected to a motor b (601), and the drive shaft of the motor b (601) is connected to the lead screw (600).

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