A method for detecting thermal insulation performance of exterior walls

Abstract

The present application relates to the field of exterior wall detection, and in particular to a method for detecting the thermal insulation performance of an exterior wall, comprising the following steps: S1, fixing, fixing the exterior wall on a fixing seat by a fixing component; S2, transmitting, sliding the fixing seat by a transmission track, thereby transmitting the exterior wall between a hot box and a cold box; S3, sealing, sealing the opening surface of the hot box, the opening surface of the cold box and the side wall of the exterior wall by a clamping component; S4, detecting, detecting the temperature in the hot box and the cold box by a detection component, thereby calculating the thermal insulation performance of the exterior wall. The present application has the effect of facilitating the staff to carry the exterior wall.

Description

Technical Field

[0001] The present application relates to the field of exterior wall detection, and in particular to a method for detecting the thermal insulation performance of an exterior wall. Background Art

[0002] With the development of our society, high-rise buildings are emerging one after another, and people's quality of life is getting higher and higher. People are beginning to pay more and more attention to the quality of houses, and the thermal insulation performance of the exterior walls of houses is one of the important indicators.

[0003] External wall insulation is made of polymer mortar, glass fiber mesh cloth, external wall flame retardant insulation board or fireproof insulation board, etc., and is bonded on site. The new integrated insulation and decorative board is produced through an assembly line, integrating insulation, waterproofing, and finishing functions. It is the preferred material to meet the current energy-saving needs of housing construction and improve the insulation level of industrial and civil buildings. It is also the preferred material for energy-saving renovation of existing buildings.

[0004] With respect to the above-mentioned related technologies, the inventors believe that there are the following defects: when the exterior wall is carried to the detection equipment, it is very laborious for the workers to carry the exterior wall due to its heavy weight. Summary of the invention

[0005] In order to improve the problem of workers having difficulty in moving exterior walls, the present application provides a method for detecting the thermal insulation performance of exterior walls.

[0006] The present application provides a method for testing the thermal insulation performance of an exterior wall, which adopts the following technical solution:

[0007] A method for detecting the thermal insulation performance of an exterior wall comprises the following steps:

[0008] S1, fixing, fixing the outer wall on the fixing seat by means of fixing components;

[0009] S2, transmission, the fixed seat is slid through the transmission track, so as to transmit the outer wall between the hot box and the cold box;

[0010] S3, sealing, sealing the opening surface of the hot box, the opening surface of the cold box and the outer wall through the clamping assembly;

[0011] S4. Detection: The temperature inside the hot box and the cold box is detected by the detection component, so as to calculate the thermal insulation performance of the exterior wall.

[0012] By adopting the above technical scheme, when it is necessary to test the thermal insulation performance of the exterior wall, first lift the exterior wall onto the fixed seat, fix the exterior wall on the fixed seat by the fixing assembly, then transport the exterior wall between the hot box and the cold box by the transmission track, and then seal the exterior wall between the hot box and the cold box by the clamping assembly, and finally test the thermal insulation performance by the detection assembly in the hot box and the cold box; during the whole process, the staff only needs to transport the exterior wall to the fixed seat, and the subsequent transportation process is automatically completed by the transmission track, making it more convenient and labor-saving for the staff to carry the exterior wall.

[0013] Preferably, the fixing assembly includes a plurality of fixing needles penetrating the top wall of the fixing seat, a fixing plate is arranged inside the fixing seat, a plurality of fixing grooves are arranged on the fixing plate, the fixing grooves are used for the fixing needles to be inserted and abutted against each other, and a friction strip is arranged on the inner side wall of the fixing groove, the friction strip is used to increase the friction between the fixing needle and the fixing groove.

[0014] By adopting the above technical solution, when the user needs to fix the external wall to be tested, the external wall to be tested can be placed on the fixing seat. At this time, the external wall will press the fixing pin into the fixing seat, and the fixing pin will contact the side wall of the external wall. Then, the fixing plate is slid to insert the fixing pin into the fixing groove, so that the fixing plate limits the fixing pin, thereby fixing the position of the fixing pin, and then the fixing pin limits the external wall, reducing the probability of the external wall moving on the fixing seat. Since there are a number of fixing pins, they can fix external walls of different shapes, thereby expanding the applicability of the fixing seat to external walls of different shapes.

[0015] Preferably, a slide plate slides inside the fixed seat, the fixed pin presses against the side wall of the slide plate, a trigger rod rotates inside the fixed seat, one end of the trigger rod is located on the side of the slide plate close to the ground, and the other end of the trigger rod is located on the side of the fixed plate away from the fixed pin, and the trigger rod is used to make the slide plate slide to control the sliding of the fixed plate.

[0016] By adopting the above technical solution, when the fixing pin slides due to the pressure of the outer wall, the fixing pin will slide against the slide plate, and by sliding the slide plate toward the bottom wall of the fixing seat, the end of the trigger rod close to the slide plate will rotate toward the bottom wall of the fixing seat. At this time, the other end of the trigger rod will rotate toward the fixing pin, and the rotation of the other end of the trigger rod will cause the fixing plate to slide toward the fixing pin, so that the fixing pin is inserted into the fixing groove of the fixing plate, thereby realizing automatic locking of the fixing pin and facilitating the operation of the staff.

[0017] Preferably, a screw rod is provided between the hot box and the cold box, one end of the screw rod is provided with a thread, and the other end of the screw rod is provided with a reverse thread, and the screw rod is used to control the hot box and the cold box to slide towards or away from each other.

[0018] By adopting the above technical solution, the staff can rotate the screw rod to slide the hot box and the cold box towards or away from each other, making the operation of the staff more convenient and quick.

[0019] Preferably, a driving source for driving the fixed seat to slide is provided at one end of the transmission track, a clamping block is provided on the outer wall of the fixed seat, a feed gear is provided on the screw rod, a feed belt is sleeved on the feed gear, the length direction of the feed belt extends toward the feeding position close to the transmission track, a feed groove for inserting the clamping block is provided on the feed belt, and when the feed gear rotates in the feeding direction, it will drive the screw rod to slide the hot box and the cold box toward each other.

[0020] By adopting the above technical scheme, when the driving source at one end of the transmission track drives the fixed seat to move in the feeding direction, since the block is inserted in the feeding slot, the fixed seat will drive the feeding belt to rotate, and the rotation of the feeding belt will drive the feeding gear to rotate, and the rotation of the feeding gear will drive the screw to rotate, thereby causing the hot box and the cold box to slide in the direction approaching each other, realizing the function that when the fixed seat slides in the direction approaching the hot box and the cold box, the hot box and the cold box automatically slide in the direction approaching each other, thereby facilitating the operation of the staff.

[0021] Preferably, a discharging gear is also provided on the screw rod, and a discharging belt is sleeved on the discharging gear. The length direction of the discharging belt extends toward the discharging position close to the transmission track, and a discharging groove for inserting a card block is provided on the discharging belt. When the discharging gear rotates in the discharging direction, it will drive the screw rod to slide the hot box and the cold box away from each other.

[0022] By adopting the above technical scheme, when the driving source at one end of the transmission track drives the fixed seat to move from the hot box and the cold box toward the discharge direction, since the block is inserted in the discharge slot, the fixed seat will drive the discharge belt to rotate, and the rotation of the discharge belt will drive the discharge gear to rotate, and the rotation of the discharge gear will drive the screw to rotate, thereby causing the hot box and the cold box to slide away from each other, realizing the function that when the fixed seat slides in the direction away from the hot box and the cold box, the hot box and the cold box automatically slide in the direction away from each other, thereby facilitating the operation of the staff.

[0023] Preferably, a clamping groove is formed on the side walls of the hot box and the cold box, and the clamping assembly includes a clamping rod, which passes through the clamping groove. Flexible clamping blocks are provided at both ends of the clamping rod, and the flexible clamping blocks are used to be clamped on the side walls of the hot box and the cold box.

[0024] By adopting the above technical solution, when the exterior wall is transported between the hot box and the cold box, the staff can insert the clamping rod into the clamping groove on the side walls of the hot box and the cold box, and at the same time make the flexible clamping blocks at both ends of the clamping rod pass through the clamping groove and clamp on the side walls of the hot box and the cold box. The flexible clamping blocks provide the hot box and the cold box with elastic force to slide toward each other, so that the hot box and the cold box clamp the exterior wall more stably, thereby increasing the stability of the exterior wall during inspection.

[0025] Preferably, the clamping assembly further comprises an electromagnet located on the side walls of the hot box and the cold box facing each other, and the electromagnet is arranged around the opening surface of the hot box or the cold box where the electromagnet is located.

[0026] By adopting the above technical solution, when the hot box and the cold box clamp the outer wall in the middle, the staff can start the electromagnet to provide suction to the hot box and the cold box to slide toward each other, so that the hot box and the cold box slide toward each other at the same time, making the hot box and the cold box clamp the outer wall more stably, thereby increasing the stability of the outer wall during inspection.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. When it is necessary to test the thermal insulation performance of the exterior wall, first lift the exterior wall onto the fixed seat, fix the exterior wall on the fixed seat through the fixing assembly, then transport the exterior wall between the hot box and the cold box through the transmission track, and then seal the exterior wall between the hot box and the cold box through the clamping assembly, and finally test the thermal insulation performance through the detection assembly in the hot box and the cold box; during the whole process, the staff only needs to transport the exterior wall to the fixed seat, and the subsequent transportation process is automatically completed through the transmission track, making it more convenient and labor-saving for the staff to carry the exterior wall.

[0029] 2. When the user needs to fix the external wall to be tested, the external wall to be tested can be placed on the fixing seat. At this time, the external wall will press the fixing pin into the fixing seat, and the fixing pin will contact the side wall of the external wall. Then, the fixing plate is slid to insert the fixing pin into the fixing groove, so that the fixing plate limits the fixing pin, thereby fixing the position of the fixing pin, and then the fixing pin limits the external wall, reducing the probability of the external wall moving on the fixing seat; due to the number of fixing pins, it can fix external walls of different shapes, expanding the applicability of the fixing seat to external walls of different shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0031] Figure 2 It is a schematic diagram of the internal structure of the fixed seat.

[0032] Figure 3It is a schematic diagram highlighting the partial structure of the feed gear.

[0033] Figure 4 It is a schematic diagram of the local structure highlighting the card slot.

[0034] Explanation of the reference numerals in the accompanying drawings: 1. fixing seat; 11. fixing needle; 12. fixing plate; 13. fixing groove; 14. friction strip; 15. slide plate; 16. trigger rod; 2. transmission track; 21. screw rod; 22. clamping block; 23. feed gear; 24. feed belt; 25. feed trough; 26. discharge gear; 27. discharge belt; 28. discharge trough; 3. clamping assembly; 31. clamping groove; 32. clamping rod; 33. flexible clamping block; 34. electromagnet; 4. hot box; 41. cold box. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-4 This application is described in further detail.

[0036] The present application embodiment discloses a method for detecting the thermal insulation performance of an exterior wall. Figure 1 , the detection method of the external wall thermal insulation performance includes the following steps:

[0037] S1, fixing, fixing the outer wall on the fixing seat 1 through the fixing assembly;

[0038] S2, transmission, the fixed seat 1 is slid by the transmission track 2, so that the outer wall is transmitted between the hot box 4 and the cold box 41;

[0039] S3, sealing, the opening surface of the hot box 4, the opening surface of the cold box 41 and the outer wall are sealed by the clamping assembly 3;

[0040] S4, detection, detecting the temperature in the hot box 4 and the cold box 41 by means of a detection component, thereby calculating the thermal insulation performance of the exterior wall;

[0041] Reference Figure 2 The fixing assembly includes a plurality of fixing needles 11 penetrating the top wall of the fixing seat 1. The length direction of the fixing needles 11 extends along the height direction of the fixing seat 1. The fixing needles 11 slide along the height direction of the fixing seat 1. A fixing plate 12 slides inside the fixing seat 1. The sliding direction of the fixing plate 12 is perpendicular to the length direction of the fixing needle 11. A sliding groove for the fixing plate 12 to slide is provided on the side wall of the fixing seat 1. The fixing plate 12 slides toward or away from the fixing needle 11.

[0042] Reference Figure 2The fixing plate 12 is penetrated with a plurality of fixing grooves 13, which extend from the side wall of the fixing plate 12 close to the fixing pin 11 to the inside of the fixing plate 12, and the extending direction of the fixing groove 13 extends along the sliding direction of the fixing plate 12. When the fixing plate 12 slides in the direction close to the fixing pin 11, the fixing pin 11 will be inserted into the fixing groove 13 and abut against the inner wall of the fixing groove 13. A friction strip 14 is installed on the inner wall of the fixing groove 13, and the friction strip 14 is used to increase the friction between the fixing pin 11 and the fixing groove 13, thereby reducing the probability of the fixing pin 11 sliding in the fixing groove 13 along the height direction of the fixing seat 1.

[0043] Reference Figure 2 A slide plate 15 slides in the fixed seat 1, and the fixing needle 11 presses on the side wall of the slide plate 15 facing away from the bottom wall of the fixed seat 1. The slide plate 15 slides along the height direction of the fixed seat 1. A first return spring is installed between the side wall of the slide plate 15 and the bottom wall of the fixed seat 1. The first return spring provides an elastic force for the slide plate 15 to slide in a direction away from the bottom wall of the fixed seat 1. The side wall of the slide plate 15 fits with the inner wall of the fixed seat 1, thereby reducing the probability of the slide plate 15 tilting when sliding.

[0044] Reference Figure 2 A trigger rod 16 is rotated in the fixing seat 1. One end of the trigger rod 16 is located on the side of the slide plate 15 close to the ground. A second return spring is installed between the end of the trigger rod 16 close to the slide plate 15 and the bottom wall of the fixing seat 1. The second return spring provides elastic force for the trigger rod 16 to rotate in the direction close to the slide plate 15. The other end of the trigger rod 16 is located on the side of the fixing plate 12 away from the fixing pin 11. The rotation axis of the trigger rod 16 is located between the side wall of the slide plate 15 and the side wall of the fixing plate 12, and the rotation axis of the trigger rod 16 is close to the bottom wall of the slide plate 15. When the slide plate 15 slides in the direction close to the bottom wall of the fixing seat 1 under the pressure of the fixing pin 11, the end of the trigger rod 16 close to the slide plate 15 rotates in the direction close to the bottom wall of the fixing seat 1, so that the other end of the trigger rod 16 slides the fixing plate 12 in the direction close to the fixing pin 11, so that the fixing pin 11 is inserted into the fixing groove 13, and the position of the fixing pin 11 is automatically fixed.

[0045] Reference Figure 3 and Figure 4 A screw rod 21 is provided between the hot box 4 and the cold box 41. The screw rod 21 is located at one end of the hot box 4 and the cold box 41 near the bottom. The screw rod 21 evenly divides its length direction into two ends. One end of the screw rod 21 is provided with a thread, and the other end of the screw rod 21 is provided with a reverse thread. The screw rod 21 is used to control the hot box 4 and the cold box 41 to slide towards or away from each other.

[0046] Reference Figure 1 and Figure 3A driving source for driving the fixed seat 1 to slide is installed at one end of the transmission track 2, and a clamping block 22 is installed on the bottom wall of the fixed seat 1. There are two transmission tracks 2, and the two transmission tracks 2 are arranged in parallel. The fixed seat 1 contacts and slides with the two transmission tracks 2 at the same time, and the clamping block 22 slides between the two transmission tracks 2. The driving source can directly drive the fixed seat 1 to slide through a rope.

[0047] Reference Figure 3 and Figure 4 A feed gear 23 is mounted on the screw rod 21, and the rotation center axis of the feed gear 23 coincides with the rotation center axis of the screw rod 21. A feed belt 24 is sleeved on the feed gear 23, and the feed belt 24 is used to drive the feed gear 23 to rotate. The length direction of the feed belt 24 extends toward the feeding position close to the transmission track 2, and a plurality of feed slots 25 for the card blocks 22 to be inserted are provided on the feed belt 24. The feeding direction is the direction in which the fixed seat 1 slides toward the direction close to the hot box 4 and the cold box 41. When the driving source drives the fixed seat 1 to slide toward the feeding direction, the card blocks 22 on the fixed seat 1 are clamped in the feed slots 25, so that the fixed seat 1 drives the feed belt 24 to rotate. At this time, the rotation of the feed gear 23 drives the screw rod 21 to rotate, so that the hot box 4 and the cold box 41 slide toward each other. When the fixed seat 1 slides between the hot box 4 and the cold box 41, the hot box 4 and the cold box 41 just sandwich the outer wall in the middle.

[0048] Reference Figure 3 and Figure 4 , a discharge gear 26 is also mounted on the screw rod 21, the rotation center axis of the discharge gear 26 coincides with the rotation center axis of the screw rod 21, a discharge belt 27 is sleeved on the discharge gear 26, the discharge belt 27 is used to drive the discharge gear 26 to rotate, the length direction of the discharge belt 27 extends toward the discharge position close to the transmission track 2, and a plurality of discharge slots 28 for the card block 22 to be inserted are provided on the discharge belt 27. The discharge direction is the direction in which the fixed seat 1 slides away from the hot box 4 and the cold box 41. When the driving source drives the fixed seat 1 to slide in the discharge direction, the card block 22 on the fixed seat 1 is clamped in the discharge slot 28, so that the fixed seat 1 drives the discharge belt 27 to rotate, and at this time, the rotation of the discharge gear 26 drives the screw rod 21 to rotate, so that the hot box 4 and the cold box 41 slide in the direction away from each other.

[0049] Reference Figure 4, a clamping groove 31 is penetrated on the side wall opposite to the hot box 4 and the cold box 41, and the clamping groove 31 is located on the bottom side wall of the hot box 4 and the cold box 41. The clamping assembly 3 includes a clamping rod 32, and the clamping rod 32 runs through the clamping groove 31. Both ends of the clamping rod 32 are installed with flexible clamping blocks 33. In this embodiment, the flexible clamping blocks 33 are made of flexible materials. The flexible clamping blocks 33 are used to pass through the clamping groove 31 and clamp on the side wall of the hot box 4 and the cold box 41. When the hot box 4 and the cold box 41 sandwich the outer wall in the middle, the clamping rod 32 abuts against and fits on one side of the fixing seat 1, that is, the bottom wall of the outer wall, and then the flexible clamping blocks 33 at both ends of the clamping rod 32 respectively pass through the clamping groove 31 on the opposite side wall at the bottom of the hot box 4 and the cold box 41, and the two flexible clamping blocks 33 are respectively clamped on the opposite side wall at the bottom of the hot box 4 and the cold box 41.

[0050] Reference Figure 4 The clamping assembly 3 also includes an electromagnet 34 located on the side walls of the hot box 4 and the cold box 41 facing each other. The electromagnet 34 is arranged around the opening surface of the hot box 4 or the cold box 41 where it is located. When the hot box 4 and the cold box 41 sandwich the outer wall in the middle, the electromagnet 34 contacts and fits against the opposite side wall of the outer wall. When the staff starts the electromagnet 34, the electromagnet 34 will be tightly attracted to the outer wall, thereby strengthening the sealing between the hot box 4, the cold box 41 and the outer wall.

[0051] The implementation principle of the method for testing the thermal insulation performance of an exterior wall in the embodiment of the present application is as follows: when the staff needs to test the thermal insulation performance of the exterior wall, first, the exterior wall is placed on the fixing seat 1, and the fixing pin 11 is slid toward the bottom wall of the fixing seat 1 under the gravity of the exterior wall, and the fixing pin 11 pushes the slide plate 15 to slide toward the bottom wall of the fixing seat 1. The slide plate 15 pushes one end of the trigger rod 16 to rotate toward the bottom wall of the fixing seat 1, and the other end of the trigger rod 16 rotates toward the fixing pin 11, so the other end of the trigger rod 16 pushes the fixing plate 12 to slide toward the fixing pin 11, and the fixing pin 11 is inserted into the fixing groove 13 and contacts and fits with the friction strip 14.

[0052] The driving source at one end of the transmission track 2 drives the fixed seat 1 to slide in the feeding direction. At this time, the clamping block 22 is inserted into the feeding slot 25, so the sliding of the fixed seat 1 will drive the feeding belt 24 to rotate, and the rotation of the feeding belt 24 will drive the screw rod 21 to rotate in the feeding direction. The screw rod 21 rotating in the feeding direction will make the hot box 4 and the cold box 41 slide in the direction of approaching each other. When the fixed seat 1 moves between the hot box 4 and the cold box 41, the hot box 4 and the cold box 41 are just clamped on the opposite side walls of the outer wall. At this time, the staff can insert the clamping rod 32 into the two clamping slots 31, and clamp the flexible clamping block 33 on the side walls of the hot box 4 and the cold box 41, and then start the electromagnet 34 to make the hot box 4 and the cold box 41 tightly clamped on both sides of the outer wall.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for detecting thermal insulation performance of an exterior wall, characterized in that: The following steps are involved: S1, fixing, fixing the outer wall on the fixing seat (1) by means of a fixing component; S2, transmission, the fixed seat (1) is slid by the transmission track (2), so that the outer wall is transmitted to between the hot box (4) and the cold box (41); S3, sealing, sealing the opening surface of the hot box (4), the opening surface of the cold box (41) and the outer side wall by means of the clamping assembly (3); S4, detection, detecting the temperature inside the hot box (4) and the cold box (41) by means of a detection component, thereby calculating the thermal insulation performance of the exterior wall; The fixing assembly comprises a plurality of fixing needles (11) penetrating the top wall of the fixing seat (1); a fixing plate (12) is arranged inside the fixing seat (1); a plurality of fixing grooves (13) are arranged on the fixing plate (12); the fixing grooves (13) are used for the fixing needles (11) to be inserted and abutted against each other; a friction strip (14) is arranged on the inner side wall of the fixing groove (13); the friction strip (14) is used to increase the friction force between the fixing needles (11) and the fixing groove (13); A slide plate (15) slides inside the fixing seat (1), the fixing pin (11) is pressed against the side wall of the slide plate (15), a trigger rod (16) rotates inside the fixing seat (1), one end of the trigger rod (16) is located on a side of the slide plate (15) close to the ground, and the other end of the trigger rod (16) is located on a side of the fixing plate (12) away from the fixing pin (11), and the trigger rod (16) is used to make the slide plate (15) slide to control the sliding of the fixing plate (12); The length direction of the fixing needle (11) extends along the height direction of the fixing seat (1), the fixing needle (11) slides along the height direction of the fixing seat (1), the fixing plate (12) slides in the fixing seat (1), and the sliding direction of the fixing plate (12) is perpendicular to the length direction of the fixing needle (11); The rotation axis of the trigger rod (16) is located between the side wall of the slide plate (15) and the side wall of the fixing plate (12). When the slide plate (15) slides in a direction close to the bottom wall of the fixing seat (1) under the pressure of the fixing pin (11), one end of the trigger rod (16) close to the slide plate (15) rotates in a direction close to the bottom wall of the fixing seat (1), so that the other end of the trigger rod (16) slides the fixing plate (12) in a direction close to the fixing pin (11), so that the fixing pin (11) is inserted into the fixing groove (13).

2. The method for detecting the thermal insulation performance of an exterior wall according to claim 1, characterized in that: A screw rod (21) is provided between the hot box (4) and the cold box (41), one end of the screw rod (21) is provided with a thread, and the other end of the screw rod (21) is provided with a reverse thread, and the screw rod (21) is used to control the hot box (4) and the cold box (41) to slide in a direction toward or away from each other.

3. A method for detecting thermal insulation performance of an exterior wall according to claim 2, characterized in that: A driving source for driving the fixed seat (1) to slide is arranged at one end of the transmission track (2), a clamping block (22) is arranged on the outer wall of the fixed seat (1), a feeding gear (23) is arranged on the screw rod (21), a feeding belt (24) is sleeved on the feeding gear (23), the length direction of the feeding belt (24) extends towards a feeding position close to the transmission track (2), and a feeding groove (25) for inserting the clamping block (22) is provided on the feeding belt (24), and when the feeding gear (23) rotates in the feeding direction, it drives the screw rod (21) to slide the hot box (4) and the cold box (41) towards each other.

4. The method for detecting the thermal insulation performance of an exterior wall according to claim 2, characterized in that: The screw rod (21) is also provided with a discharge gear (26), and a discharge belt (27) is sleeved on the discharge gear (26). The length direction of the discharge belt (27) extends toward a discharge position close to the transmission track (2). The discharge belt (27) is provided with a discharge groove (28) for inserting a clamping block (22). When the discharge gear (26) rotates in the discharge direction, it drives the screw rod (21) to slide the hot box (4) and the cold box (41) in a direction away from each other.

5. The method for detecting the thermal insulation performance of an exterior wall according to claim 1, characterized in that: The side walls of the hot box (4) and the cold box (41) are penetrated by a clamping groove (31), the clamping assembly (3) comprises a clamping rod (32), the clamping rod (32) penetrates the clamping groove (31), and both ends of the clamping rod (32) are provided with flexible clamping blocks (33), and the flexible clamping blocks (33) are used to clamp on the side walls of the hot box (4) and the cold box (41).

6. A method for detecting thermal insulation performance of an exterior wall according to claim 1, characterized in that: The clamping assembly (3) further comprises an electromagnet (34) located on the side walls of the hot box (4) and the cold box (41) facing each other, and the electromagnet (34) is arranged around the opening surface of the hot box (4) or the cold box (41) where the electromagnet (34) is located.

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