CN214894975U - Building outer door and window thermal insulation performance detection device - Google Patents
Building outer door and window thermal insulation performance detection device Download PDFInfo
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- CN214894975U CN214894975U CN202121471850.1U CN202121471850U CN214894975U CN 214894975 U CN214894975 U CN 214894975U CN 202121471850 U CN202121471850 U CN 202121471850U CN 214894975 U CN214894975 U CN 214894975U
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Abstract
The utility model discloses a device for detecting the heat preservation performance of an external door and window of a building, which relates to the technical field of building material detection, and comprises an environmental space, wherein the environmental space can isolate the external environment, and the detection is prevented from being interfered by external factors; the test piece clamping device can ensure that the test piece is kept still during detection; the combination of the first expansion plate and the second expansion plate can adjust the clamping range according to the size of a test piece, so that the first expansion plate and the second expansion plate can be always in contact with the test piece; the air partition plate can prevent hot air and cold air from directly blowing to the test piece, and the air partition plate can ensure that the hot air and the cold air form uniform and stable air flow along the surface of the test piece, so that a relatively real environment is simulated; the supporting block can increase the contact area of the first baffle plate and the ground, and the first baffle plate is prevented from overturning when in use. The utility model discloses simple structure is reliable, and the test piece installation is convenient with the dismantlement, and detection efficiency is high, and it is high to detect the accuracy, and the practicality is strong, is suitable for the popularization.
Description
Technical Field
The utility model relates to a building material detects technical field, concretely relates to building outer door and window thermal insulation performance detection device.
Background
At present, the device for detecting the heat insulation performance of the external door and window of the building is one of building energy conservation detection, the heat insulation performance of the door and window in the building envelope is the weakest, the energy conservation and emission reduction is greatly promoted in China, and the heat insulation performance is poor and directly relates to the loss degree of electric energy and fire coal. The method for detecting the heat preservation performance of the building doors and windows is the most direct method for directly judging whether the building doors and windows save energy or not.
Current building exterior door and window thermal insulation performance detection device sets up the test piece through setting up hot case and cold box respectively between hot case and cold box, and the size of test piece is the same extremely, and the size of test piece frame and test piece is not assorted, often need demolish preceding test piece when carrying out other test piece tests, demolishs more troublesome, is difficult for changing, influences test efficiency.
Disclosure of Invention
The utility model provides an above-mentioned problem, provide a building outer door and window thermal insulation performance detection device, solve current thermal insulation performance detection device comparatively inconvenient when changing the test piece, influence test efficiency's problem.
The technical scheme of the utility model is that: a building outer door and window thermal insulation performance detection device comprises an environmental space, a hot box, a cold box, a test piece clamping device, a test piece and an air baffle plate; a hot box is arranged on one side in the environment space, a cold box is arranged on the other side of the hot box, an opening is formed at the joint of the hot box and the cold box in a penetrating manner, a test piece clamping device is arranged in the opening, and a test piece is detachably connected in the test piece clamping device; an electric heater is arranged in the hot box, an evaporator is arranged in the cold box, a refrigerator is arranged outside the environment space, the refrigerator is electrically connected with the evaporator, and air separation plates are connected between the test piece and the electric heater and between the test piece and the refrigerating device in a sliding manner; a humidity control system is arranged outside the environment space, the humidity control system is communicated with the hot box, and an air conditioning device is arranged on the inner wall of the environment space; the hot box inner wall, the cold box inner wall and the test piece are respectively provided with a plurality of uniformly distributed sensors, and the humidity control system, the air conditioning device and the sensors are electrically connected with the external control system.
Further, test piece clamping device includes frame, first expansion plate, second expansion plate and spring, frame fixed connection's setting is at the opening part, one side and lower extreme all are equipped with the draw-in groove in the frame, two draw-in groove one end through connection, two can dismantle in the draw-in groove and be connected with the test piece, opposite side and upper end all are equipped with the spout in the frame, sliding connection has first expansion plate and second expansion plate respectively in the spout, first expansion plate and second expansion plate one end fixed connection and perpendicular setting, first expansion plate and second expansion plate all can dismantle with the test piece and be connected, all be connected with the spring between first expansion plate and second expansion plate and the frame.
Furthermore, filling materials are arranged between the test piece and the outer frame as well as between the test piece and the first expansion plate as well as between the test piece and the second expansion plate.
Further, the air partition plate comprises a first baffle, a second baffle, a screw rod, a first bevel gear, a second bevel gear and a rotating shaft, a cavity is arranged in the first baffle, the second baffle is connected in the cavity in a sliding mode, the screw rod is vertically arranged in the cavity, the lower end of the screw rod is rotatably connected with the inner wall of the bottom of the cavity, a screw hole matched with the screw rod is formed in the second baffle, the second baffle is connected with the screw rod in a threaded mode through the screw hole, the first bevel gear is sleeved on the screw rod, the second bevel gear meshed with the first bevel gear is arranged above the first bevel gear, the first bevel gear and the second bevel gear are arranged below the second baffle, the second bevel gear is rotatably connected in the cavity through the rotating shaft, the first end of the rotating shaft is fixedly connected with the second bevel gear, and the second end of the rotating shaft penetrates through the side wall of the cavity and is connected with a handle.
Furthermore, supporting blocks are transversely arranged on two sides of the lower end of the first baffle, and rollers are arranged at two ends of each supporting block.
Further, the number of the sensors is 183.
Furthermore, a temperature and humidity meter is arranged on the inner wall of the hot box.
The utility model has the advantages that: the environment space of the utility model can isolate the external environment, and avoid the external factors to interfere the detection; the test piece clamping device can ensure that the test piece is kept still during detection, and the test piece clamping device is detachably connected with the test piece, so that different test pieces can be conveniently replaced; the clamping groove can ensure that the test piece is stable when placed; the first expansion plate and the second expansion plate are respectively contacted with two end faces of the test piece and clamp the test piece, so that the test piece is guaranteed not to move any more during testing; the combination of the first expansion plate and the second expansion plate can adjust the clamping range according to the size of a test piece, so that the first expansion plate and the second expansion plate can be always in contact with the test piece; the filling material can fill gaps among the test piece, the outer frame, the first expansion plate and the second expansion plate, so that the influence of mutual circulation of cold air and hot air in the hot box and the cold box on the accuracy of the test is avoided during detection; the air partition plate can prevent hot air and cold air from directly blowing to the test piece, and the air partition plate can ensure that the hot air and the cold air form uniform and stable air flow along the surface of the test piece, so that a relatively real environment is simulated; the second baffle can move up and down in the first baffle to adjust the height; the screw rod and the second baffle are matched to have self-locking performance, so that the second baffle is ensured not to move any more after the position of the second baffle is determined, and the second baffle is prevented from suddenly falling off when in use; the supporting block can increase the contact area of the first baffle plate and the ground, and the first baffle plate is prevented from overturning when in use. The utility model discloses simple structure is reliable, and the test piece installation is convenient with the dismantlement, and detection efficiency is high, and it is high to detect the accuracy, and the practicality is strong, is suitable for the popularization.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a specimen clamping device of the present invention;
FIG. 3 is a schematic view of the test piece installation of the present invention;
FIG. 4 is a front view of the structure of the wind-proof plate of the present invention;
fig. 5 is a side view of the structure of the wind-proof plate of the present invention.
Reference numerals: 1 is an environmental space, 2 is a hot box, 3 is a cold box, 4 is a test piece clamping device, 401 is an outer frame, 402 is a first expansion plate, 403 is a second expansion plate, 404 is a spring, 405 is a clamping groove, 406 is a sliding groove, 5 is a test piece, 6 is an electric heater, 7 is an evaporator, 701 is a refrigerator, 8 is an air isolation plate, 801 is a first baffle, 802 is a second baffle, 803 is a lead screw, 804 is a first bevel gear, 805 is a second bevel gear, 806 is a rotating shaft, 807 is a handle, 808 is a supporting block, 809 is a roller, 9 is a humidity control system, 10 is an air conditioning device, and 11 is a temperature and humidity meter.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1 to 5, a device for detecting the thermal insulation performance of an external door and window of a building comprises an environmental space 1, a hot box 2, a cold box 3, a test piece clamping device 4, a test piece 5 and an air baffle 8; the environment space 1 can isolate the external environment, the interference detection of external factors is avoided, a hot box 2 is arranged on one side in the environment space 1, a cold box 3 is arranged on one side of the hot box 2, the hot box 2 and the cold box 3 can respectively simulate cold and hot environments, an opening 201 is formed at the joint of the hot box 2 and the cold box 3 in a penetrating mode, a test piece clamping device 4 is arranged in the opening 201, a test piece 5 is arranged in the test piece clamping device 4, the test piece clamping device 4 can ensure that the test piece 5 can be kept still during detection, the test piece clamping device 4 is detachably connected with the test piece 5, and different test pieces 5 can be conveniently replaced; the test piece clamping device 4 comprises an outer frame 401, a first expansion plate 402, a second expansion plate 403 and a spring 404, wherein the outer frame 401 is fixedly connected with the opening 201, one side and the lower end of the outer frame 401 are respectively provided with a clamping groove 405, one end of each clamping groove 405 is connected in a through manner, the two clamping grooves 405 are detachably connected with a test piece 5, the clamping grooves 405 can ensure that the test piece 5 is stable when placed, the other side and the upper end of the outer frame 401 are respectively provided with a sliding groove 406, the sliding grooves 406 are respectively connected with the first expansion plate 402 and the second expansion plate 403 in a sliding manner, one end of each of the first expansion plate 402 and the second expansion plate 403 is fixedly connected and vertically arranged, the first expansion plate 402 and the second expansion plate 403 are both detachably connected with the test piece 5, the first expansion plate 402 and the second expansion plate 403 are used for limiting the test piece 5, the first expansion plate 402 and the second expansion plate 403 are respectively in contact with two end faces of the test piece 5 and clamp the test piece 5, and ensure that the test piece 5 does not move any more during testing, the combination of the first expansion plate 402 and the second expansion plate 403 can adjust the clamping range according to the size of the test piece 5, so that the first expansion plate 402 and the second expansion plate 403 can be always in contact with the test piece 5; springs 404 are connected between the first expansion plate 402, the second expansion plate 403 and the outer frame 401, the springs 404 are in a compression state, the springs 404 apply pressure to the first expansion plate 402 and the second expansion plate 403, so that the test piece 5 is limited, filling materials are arranged between the test piece 5 and the outer frame 401 and between the first expansion plate 402 and the second expansion plate 403, and can fill gaps between the test piece 5 and the outer frame 401 and between the first expansion plate 402 and the second expansion plate 403, so that the influence on the accuracy of the test caused by the mutual circulation of cold air and hot air in the hot box 2 and the cold box 3 during detection is avoided; the electric heater 6 is arranged in the hot box 2, the electric heater 6 can heat towards the test piece 5 to detect the performance of the test piece 5 under the high-temperature environment, preferably, the temperature range of the hot box 2 is 19-21 ℃, the evaporator 7 is arranged in the cold box 3, the refrigerator 701 is arranged outside the environment space 1, the refrigerator 701 is electrically connected with the evaporator 7, the refrigerator 701 and the evaporator 7 can blow cold air towards the test piece 5 in a matching way to detect the performance of the test piece 5 under the low-temperature environment, preferably, the temperature range of the cold box 3 is-21-19 ℃, the temperature between the test piece 5 and the electric heater 6, the air isolation plate 8 is connected between the test piece 5 and the evaporator 7 in a sliding manner, the air isolation plate 8 can prevent hot air and cold air from directly blowing to the test piece 5, and the air isolation plate 8 can ensure that the hot air and the cold air form uniform and stable air flow along the surface of the test piece 5, so that a relatively real environment is simulated; the wind-proof plate 8 comprises a first baffle 801, a second baffle 802, a lead screw 803, a first bevel gear 804, a second bevel gear 805 and a rotating shaft 806, a cavity is arranged in the first baffle 801, the second baffle 802 is connected in the cavity in a sliding manner, the second baffle 802 can move up and down to adjust the height, the lead screw 803 is vertically arranged in the cavity, the lower end of the lead screw 803 is rotatably connected with the inner wall of the bottom of the cavity, a screw hole matched with the lead screw 803 is arranged in the second baffle 802, the second baffle 802 is in threaded connection with the lead screw 803 through the screw hole, the inner wall of the cavity limits the rotation of the second baffle 802, when the lead screw 803 rotates, the second baffle 802 can be driven to move up and down, the lead screw 803 and the second baffle 802 are matched to have self-locking performance, the second baffle 802 is ensured not to move any more after the position is determined, and the second baffle 802 is prevented from falling suddenly when in use; a first bevel gear 804 is sleeved on the screw 803, the first bevel gear 804 is fixedly connected with the screw 803, the screw 803 can drive the first bevel gear 804 to rotate when rotating, a second bevel gear 805 which is meshed with the first bevel gear 804 is arranged above the first bevel gear 804, the first bevel gear 804 can be driven to rotate when rotating, the first bevel gear 804 and the second bevel gear 805 are both arranged below the second baffle 802, the second bevel gear 805 is arranged in a cavity in a rotating connection mode through a rotating shaft 806, a first end of the rotating shaft 806 is fixedly connected with the second bevel gear 805, a handle 807 is connected to a second end of the rotating shaft 806 through the side wall of the cavity, and the handle 807 facilitates manual control of the rotating shaft 806 to rotate so as to drive the second bevel gear 805 to rotate; supporting blocks 808 are transversely arranged on two sides of the lower end of the first baffle plate 801, the supporting blocks 808 can increase the contact area of the first baffle plate 801 and the ground, the first baffle plate 801 is prevented from overturning when in use, rollers 809 are arranged at two ends of the two supporting blocks 808, and the rollers 809 are convenient for driving the air partition plate 8 to move and adjusting the distance between the rollers 809 and the test piece 5; the inner wall of the environment space 1 is provided with an air conditioning device 10, the air conditioning device 10 can ensure stable temperature difference between the inside and the outside of the hot box 2 and the cold box 3, the outside of the environment space 1 is provided with a humidity control system 9, the humidity control system 9 is communicated with the hot box 2, the humidity control system 9 is used for controlling the air humidity in the hot box 2, the relative humidity in the hot box 2 is less than 20 percent in the detection process, the inner wall of the hot box 2 is provided with a temperature and humidity meter 11, the temperature and humidity meter 11 can detect the temperature and the humidity in the hot box 2 in real time, and the humidity control system 9 and the air conditioning device 10 are both electrically connected with an external control system; all be equipped with a plurality of evenly distributed's sensor on 2 inner walls of hot box, 3 inner walls of cold box and the test piece 5, the sensor is used for measuring the temperature in the testing process, and the temperature data analysis test piece 5's that obtains through the sensor at last thermal insulation performance, preferred, the quantity of sensor is 183, and the concrete distribution condition of sensor is: 5 both sides of test piece all are equipped with 9 sensors on the surface, be equipped with 9 sensors on the frame 401 of one side in the hot box 2, test piece 5 and two separate between the aerofoil 8 all suspend 9 evenly distributed's sensor in midair, two separate between aerofoil 8 and the 2 inner walls of hot box and the 3 inner walls of cold box all suspend 9 sensors in midair, two separate even 9 sensors that are equipped with on the aerofoil 8, the even setting of remaining sensor is on other inner walls of removing hot box 2 and the 3 bottom inner walls of cold box.
The utility model discloses a use method: when the heat preservation performance needs to be detected, the first expansion plate 402 and the second expansion plate 403 are pushed, the test piece 5 is placed in the two clamping grooves 405, then the first expansion plate 402 is loosened, the spring 404 on the first expansion plate 402 resets to push the first expansion plate 402 to move downwards to be contacted with the upper end of the test piece 5, at the moment, the second expansion plate 403 contracts, then the second expansion plate 403 is loosened, the spring 404 on one side of the second expansion plate 403 resets to push the first expansion plate 402 to move leftwards to be contacted with the right side of the test piece 5, at the moment, the first expansion plate 402 contracts, the first expansion plate 402 and the second expansion plate 403 are matched to clamp the test piece 5, the test piece 5 is limited not to move any more, and then the gaps between the test piece 5 and the outer frame 401 as well as between the first expansion plate 402 and the second expansion plate 403 are completely filled with filling materials; then, the air partition plate 8 is pushed to move, the distance between the air partition plate 8 and the test piece 5 is adjusted according to actual conditions, then the handle 807 is rotated, the handle 807 drives the rotating shaft 806 to rotate, the second bevel gear 805 is driven to rotate, the second bevel gear 805 is meshed with the first bevel gear 804 to reach the first bevel gear 804 to rotate, the lead screw 803 is driven, the lead screw 803 drives the second baffle plate 802 to move up and down to adjust the height, and when the height of the second baffle plate 802 meets requirements, the handle 807 stops rotating; then starting the air conditioning device 10, the electric heater 6, the refrigerating machine 701 and the evaporator 7, starting all sensors, setting the temperatures in the environmental space 1, the hot box 2 and the cold box 3 according to the detection requirements, and when the temperatures in the hot box 2 and the cold box 3 reach set values, if the absolute value of the hourly change of the average air temperatures of the hot box 2 and the cold box 3 measured by the sensors is not more than +/-0.3K compared with the standard conditions, and the total heat input change is not more than +/-2%, then the hot box 2 and the cold box 3 are in a stable state at the moment;
and then starting a humidity control system 9 to ensure that the relative humidity of the air in the hot box 2 is not more than 20%, finally recording the temperature measured by the sensor every 5 minutes, measuring for six times in total, and analyzing the heat insulation performance of the door and the window according to the obtained data.
The environment space of the utility model can isolate the external environment, and avoid the external factors to interfere the detection; the test piece clamping device can ensure that the test piece is kept still during detection, and the test piece clamping device is detachably connected with the test piece, so that different test pieces can be conveniently replaced; the clamping groove can ensure that the test piece is stable when placed; the first expansion plate and the second expansion plate are respectively contacted with two end faces of the test piece and clamp the test piece, so that the test piece is guaranteed not to move any more during testing; the combination of the first expansion plate and the second expansion plate can adjust the clamping range according to the size of a test piece, so that the first expansion plate and the second expansion plate can be always in contact with the test piece; the filling material can fill gaps among the test piece, the outer frame, the first expansion plate and the second expansion plate, so that the influence of mutual circulation of cold air and hot air in the hot box and the cold box on the accuracy of the test is avoided during detection; the air partition plate can prevent hot air and cold air from directly blowing to the test piece, and the air partition plate can ensure that the hot air and the cold air form uniform and stable air flow along the surface of the test piece, so that a relatively real environment is simulated; the second baffle can move up and down in the first baffle to adjust the height; the screw rod and the second baffle are matched to have self-locking performance, so that the second baffle is ensured not to move any more after the position of the second baffle is determined, and the second baffle is prevented from suddenly falling off when in use; the supporting block can increase the contact area of the first baffle plate and the ground, and the first baffle plate is prevented from overturning when in use. The utility model discloses simple structure is reliable, and the test piece installation is convenient with the dismantlement, and detection efficiency is high, and it is high to detect the accuracy, and the practicality is strong, is suitable for the popularization.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. A building outer door and window heat preservation performance detection device is characterized by comprising an environmental space (1), a hot box (2), a cold box (3), a test piece clamping device (4), a test piece (5) and an air baffle plate (8); a hot box (2) is arranged on one side in the environment space (1), a cold box (3) is arranged on the other side of the hot box (2), an opening (201) is formed in the joint of the hot box (2) and the cold box (3) in a penetrating manner, a test piece clamping device (4) is arranged in the opening (201), and a test piece (5) is detachably connected in the test piece clamping device (4); an electric heater (6) is arranged in the hot box (2), an evaporator (7) is arranged in the cold box (3), a refrigerator (701) is arranged outside the environment space (1), the refrigerator (701) is electrically connected with the evaporator (7), and wind isolation plates (8) are connected between the test piece (5) and the electric heater (6) and between the test piece (5) and the evaporator (7) in a sliding manner; a humidity control system (9) is arranged outside the environment space (1), the humidity control system (9) is communicated with the hot box (2), and an air conditioning device (10) is arranged on the inner wall of the environment space (1); the device is characterized in that a plurality of uniformly distributed sensors are arranged on the inner wall of the hot box (2), the inner wall of the cold box (3) and the test piece (5), and the humidity control system (9), the air conditioning device (10) and the sensors are electrically connected with an external control system.
2. The device for detecting the thermal insulation performance of the external door and window for the building according to claim 1, characterized in that: the test piece clamping device (4) comprises an outer frame (401), a first expansion plate (402), a second expansion plate (403) and a spring (404), the outer frame (401) is fixedly connected with the opening (201), the inner side and the lower end of the outer frame (401) are respectively provided with a clamping groove (405), one end of each of the two clamping grooves (405) is communicated, the two clamping grooves (405) are detachably connected with a test piece (5), the other side and the upper end in the outer frame (401) are both provided with a sliding chute (406), a first expansion plate (402) and a second expansion plate (403) are respectively connected in the sliding chute (406) in a sliding way, one end of the first expansion plate (402) and one end of the second expansion plate (403) are fixedly connected and vertically arranged, the first expansion plate (402) and the second expansion plate (403) are both detachably connected with the test piece (5), springs (404) are connected between the first expansion plate (402), the second expansion plate (403) and the outer frame (401).
3. The device for detecting the thermal insulation performance of the external door and window for the building according to claim 2, is characterized in that: and filling materials are arranged among the test piece (5), the outer frame (401), the first expansion plate (402) and the second expansion plate (403).
4. The device for detecting the thermal insulation performance of the external door and window for the building according to claim 1, characterized in that: the wind partition plate (8) comprises a first baffle plate (801), a second baffle plate (802), a lead screw (803), a first bevel gear (804), a second bevel gear (805) and a rotating shaft (806), a cavity is arranged in the first baffle plate (801), the second baffle plate (802) is connected in the cavity in a sliding mode, the lead screw (803) is vertically arranged in the cavity, the lower end of the lead screw (803) is rotatably connected with the inner wall of the bottom of the cavity, a screw hole matched with the lead screw (803) is formed in the second baffle plate (802), the second baffle plate (802) is in threaded connection with the lead screw (803) through the screw hole, the lead screw (803) is sleeved with the first bevel gear (804), a second bevel gear (805) meshed with the first bevel gear (804) is arranged above the first bevel gear (804), the first bevel gear (804) and the second bevel gear (805) are both arranged below the second baffle plate (802), and the second bevel gear (805) is rotatably connected in the cavity through the rotating shaft (806), the first end of the rotating shaft (806) is fixedly connected with the second bevel gear (805), and the second end of the rotating shaft (806) penetrates through the side wall of the cavity to be connected with a handle (807).
5. The device for detecting the thermal insulation performance of the external door and window for the building according to claim 4, is characterized in that: supporting blocks (808) are transversely arranged on two sides of the lower end of the first baffle (801), and rollers (809) are arranged at two ends of each supporting block (808).
6. The device for detecting the thermal insulation performance of the external door and window for the building according to claim 1, characterized in that: the number of the sensors is 183.
7. The device for detecting the thermal insulation performance of the external door and window for the building according to claim 1, characterized in that: the inner wall of the hot box (2) is provided with a temperature and humidity meter (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121471850.1U CN214894975U (en) | 2021-06-30 | 2021-06-30 | Building outer door and window thermal insulation performance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121471850.1U CN214894975U (en) | 2021-06-30 | 2021-06-30 | Building outer door and window thermal insulation performance detection device |
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| Publication Number | Publication Date |
|---|---|
| CN214894975U true CN214894975U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121471850.1U Active CN214894975U (en) | 2021-06-30 | 2021-06-30 | Building outer door and window thermal insulation performance detection device |
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| CN (1) | CN214894975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117647557A (en) * | 2024-01-26 | 2024-03-05 | 内蒙古博友建筑工程质量检测有限责任公司 | Test device for detecting performance of building doors and windows |
-
2021
- 2021-06-30 CN CN202121471850.1U patent/CN214894975U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117647557A (en) * | 2024-01-26 | 2024-03-05 | 内蒙古博友建筑工程质量检测有限责任公司 | Test device for detecting performance of building doors and windows |
| CN117647557B (en) * | 2024-01-26 | 2024-04-16 | 内蒙古博友建筑工程质量检测有限责任公司 | Test device for detecting performance of building doors and windows |
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