Wall thermal insulation performance detection device for architectural design

Abstract

The invention relates to the technical field of wall body detection, in particular to a wall body thermal insulation performance detection device for building design, which comprises a machine table, a cold box and a hot box, the cold box is fixedly arranged on the machine table, the hot box is movably arranged above the cold box, the wall body thermal insulation performance detection device further comprises a temperature sensor, a heater and a sealing plate, an open hole is formed in the top of the hot box in a penetrating mode, the heater is arranged on the hot box in a lifting mode through the driving assembly, the heater penetrates through the open hole to extend into the hot box, the sealing plate is arranged in the hot box through the linkage assembly, and the linkage assembly is matched with the driving assembly. The heater can be integrally moved out of the hot box after heating is completed, meanwhile, the sealing plate automatically seals the opening, and physical isolation between a heat source and the internal environment of the hot box is achieved; compared with a traditional mode that only a heat source is closed, continuous heat radiation or heat conduction interference caused by the fact that waste heat of the heater is difficult to dissipate rapidly is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wall detection, in particular to a wall thermal insulation performance detection device for architectural design. BACKGROUND

[0002] With the continuous improvement of building energy-saving standards, the wall thermal insulation performance has become one of the core indicators of green building design and acceptance. Accurate determination of the heat transfer coefficient (K value) and thermal resistance of the wall under actual use conditions is the premise of evaluating its energy-saving effect and optimizing the design. At present, the industry generally uses "heat box method" or "heat flow meter method" to detect the wall thermal insulation performance in the laboratory or on site.

[0003] The traditional heat box method device is usually composed of a cold box, a hot box and a temperature control system. When testing, the wallboard is clamped between the cold and hot boxes, and the heat transfer coefficient of the wall is calculated by maintaining a constant temperature difference on both sides and using heat flow sensors or temperature sensors.

[0004] However, the prior art has the following disadvantages: after the test is completed, only the power of the heater is turned off, and the heating element itself still maintains a high temperature. The continuous release of radiant heat and residual convective heat will disturb the temperature field inside the hot box, causing the temperature sensor on the cold side to drift, affecting the calculation accuracy of the heat transfer coefficient; the heater cable, probe and other components need to penetrate the wall surface of the hot box. If the opening is sealed by simple insulation cotton or manual plugs, gaps may be caused due to installation errors, resulting in additional air infiltration heat loss and making the test results higher. SUMMARY

[0005] The purpose of the present application is to provide a wall thermal insulation performance detection device for architectural design to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: The wall thermal insulation performance detection device for architectural design comprises a table, a cold box and a hot box. The cold box is fixedly arranged on the table. The hot box is movably arranged above the cold box through a clamping assembly. Under the action of the clamping assembly, the hot box can seal and clamp the two sides of the wallboard in cooperation with the cold box. It also comprises a temperature sensor, a heater and a sealing plate. The temperature sensor is fixedly arranged in the interior of the cold box and is used to detect the temperature change in the cold box, so as to detect the thermal insulation performance of the wallboard. The hot box is provided with an opening at the top. The heater is movably arranged on the hot box through a driving assembly, and the heater extends into the interior of the hot box through the opening. The sealing plate is arranged in the interior of the hot box through a linkage assembly, and the linkage assembly cooperates with the driving assembly, when the heating of the interior of the hot box is completed and the driving assembly is removed from the hot box through the opening, the linkage assembly will drive the sealing plate to close the opening.

[0007] The wall heat preservation performance detection device for architectural design has the advantages of simple structure, convenient operation, high efficiency, and high accuracy. The driving assembly comprises a support and an electric push rod, and the support is fixedly arranged in the hot box. The electric push rod is fixedly arranged on the support, and the output end of the electric push rod is fixedly connected with the top of the heater.

[0008] The wall heat preservation performance detection device for architectural design has the advantages of simple structure, convenient operation, high efficiency, and high accuracy. The linkage assembly comprises a rotating shaft and a sleeve, and the rotating shaft is vertically arranged in the hot box and the support. The sleeve is fixedly arranged on the heater, and the sleeve is slidably arranged on the outer wall of the rotating shaft.

[0009] The wall heat preservation performance detection device for architectural design has the advantages of simple structure, convenient operation, high efficiency, and high accuracy. The inner wall of the sleeve is rollingly embedded with a ball, and the outer wall of the rotating shaft is provided with a spiral groove along the length direction, and the ball is also rollingly embedded in the spiral groove.

[0010] The wall heat preservation performance detection device for architectural design has the advantages of simple structure, convenient operation, high efficiency, and high accuracy. The linkage assembly further comprises a rotating rod which is vertically arranged in the hot box and the support, one end of the sealing plate is slidably arranged on the outer wall of the rotating rod, and the top surface of the sealing plate is attached to the inner top surface of the hot box. The inner wall of one end of the sealing plate is rollingly embedded with a steel ball, the outer wall of the rotating rod is provided with a V-shaped groove along the length direction, and the steel ball is also rollingly embedded in the V-shaped groove.

[0011] The wall heat preservation performance detection device for architectural design has the advantages of simple structure, convenient operation, high efficiency, and high accuracy. The other end of the sealing plate is fixedly provided with a protrusion, the inner wall of the hot box is vertically and horizontally provided with a vertical groove and a horizontal groove, and the bottom end of the vertical groove is communicated with the horizontal groove. The protrusion is slidably arranged in the vertical groove, and the horizontal height of the horizontal groove is equal to the horizontal height of the bottom end of the V-shaped groove.

[0012] The wall heat preservation performance detection device for architectural design has the advantages of simple structure, convenient operation, high efficiency, and high accuracy. The inside of the hot box is vertically fixed with a limiting rod, when the sealing plate rotates half a circle, the protruding block and the limiting rod will resist each other to prevent the sealing plate from continuing to rotate, and the sealing plate is provided with an avoiding hole corresponding to the bottom end of the rotating shaft. Under the interaction of the steel ball, the limiting rod, the V-shaped groove, the vertical groove and the horizontal groove, when the rotating rod rotates, the sealing plate will first vertically slide down, then rotate half a circle with the rotating rod as the center and then vertically move up to close the opening.

[0013] The wall heat preservation performance detection device for architectural design has the advantages that: A small pulley is coaxially fixed on the rotating shaft, and a large pulley is coaxially fixed on the rotating rod, and the small pulley and the large pulley are connected through a toothed belt.

[0014] The wall heat preservation performance detection device for architectural design has the advantages that: The clamping assembly comprises a sliding rail and a sliding seat, and the sliding rail is vertically fixed on the machine table. The sliding seat is fixed on the hot box, and the sliding seat and the sliding rail vertically slide.

[0015] The wall heat preservation performance detection device for architectural design has the advantages that: A lead screw is vertically arranged on the machine table, and the lead screw is threadedly connected with the hot box. A motor is fixed on the machine table, the output end of the motor is coaxially fixed with one end of the lead screw, and sealing strips are arranged at the openings of the cold box and the hot box.

[0016] Compared with the prior art, the wall heat preservation performance detection device for architectural design has the advantages that: Through the upper and lower sealing and clamping structures of the cold box and the hot box, the wall plate on both sides is accurately isolated and stably fixed, so that the test environment is closed and reliable. Through the cooperation of the driving assembly and the linkage assembly, the heater can be moved out of the hot box as a whole after heating, and the sealing plate automatically closes the opening, so that the heat source and the internal environment of the hot box are physically isolated. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an overall structural schematic view of the wall heat preservation performance detection device for architectural design.

[0018] Figure 2It is the thermal box, sleeve, sealing plate sectional view of wall thermal performance detection device for building design.

[0019] Figure 3 It is Figure 2 The enlarged view at A.

[0020] Figure 4 It is Figure 2 The enlarged view at B.

[0021] Figure 5 It is the thermal box sectional view of wall thermal performance detection device for building design.

[0022] Figure 6 It is Figure 5 The enlarged view at C.

[0023] Figure 7 It is the sealing plate, rotating rod split schematic view of wall thermal performance detection device for building design.

[0024] Figure 8 It is Figure 2 The enlarged view at D.

[0025] Figure 9 It is another view schematic view of the overall structure of wall thermal performance detection device for building design.

[0026] In the figure: 1, machine table; 2, cold box; 3, hot box; 301, opening; 302, vertical groove; 303, horizontal groove; 4, temperature sensor; 5, heater; 6, sealing plate; 601, protruding block; 602, avoiding hole; 7, support; 8, electric push rod; 9, rotating shaft; 901, spiral groove; 10, sleeve; 11, ball; 12, rotating rod; 1201, V-shaped groove; 13, steel ball; 14, limiting rod; 15, small pulley; 16, large pulley; 17, toothed belt; 18, slide rail; 19, slide; 20, lead screw; 21, motor; 22, sealing strip. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0028] Please refer to Figures 1-9 As an embodiment of the present application, the wall thermal performance detection device for building design comprises a machine table 1, a cold box 2 and a hot box 3. The cold box 2 is fixedly arranged on the machine table 1. The hot box 3 is movably arranged above the cold box 2 through a clamping assembly. Under the action of the clamping assembly, the hot box 3 can seal and clamp the two sides of the wall plate in cooperation with the cold box 2. Also include temperature sensor 4, heater 5 and sealing plate 6, the temperature sensor 4 is fixedly arranged in the inside of the cold box 2, for detecting the temperature change in the cold box 2, so as to detect the thermal insulation performance of wallboard; The hot box 3 top is provided with an opening 301, the heater 5 is arranged on the hot box 3 through the driving assembly, and the heater 5 extends to the inside of the hot box 3 through the opening 301; The sealing plate 6 is arranged in the inside of the hot box 3 through the linkage assembly, and the linkage assembly cooperates with the driving assembly, when the heater 5 is heated in the hot box 3 and is removed from the hot box 3 through the opening 301 under the action of the driving assembly, the linkage assembly drives the sealing plate 6 to close the opening 301.

[0029] In this embodiment, the clamping assembly presses the hot box 3 as a whole, and is folded up and down on the cold box 2 fixed on the machine table 1, so that the wallboard is tightly clamped between the cold box 2 and the hot box 3, forming a temperature control cavity which is independent and sealed on both sides; The driving assembly sends the heater 5 into the hot box 3 through the opening 301, continuously supplies heat to the hot side cavity, and the temperature sensor 4 in the cold box 2 records the temperature change of the cold side in real time, to provide original data for subsequent calculation of the heat transfer coefficient; After heating, the driving assembly reversely operates, and the heater 5 is withdrawn from the opening 301 as a whole; the same power synchronously drives the sealing plate 6 through the linkage assembly to immediately seal the opening 301, realizes the physical isolation of the heat source and the environment in the box, and eliminates the interference of residual heat radiation and convection; The temperature sensor 4 in the cold box 2 continues to collect the temperature of the cold side in the stable and undisturbed environment, and the system can accurately calculate the thermal insulation performance index of the wallboard according to the standard algorithm combined with the known heating power and temperature difference.

[0030] As a further scheme of the application, the driving assembly comprises a bracket 7 and an electric push rod 8, the bracket 7 is fixedly arranged on the hot box 3; The electric push rod 8 is fixedly arranged on the bracket 7, and the output end of the electric push rod 8 is fixedly connected with the top of the heater 5.

[0031] In this embodiment, please refer to Figure 1 And Figure 9 The bracket 7 is fastened on the top of the hot box 3, to provide a rigid mounting position for the electric push rod 8, to ensure that the axis of the electric push rod 8 is aligned with the center of the opening 301, to form a stable lifting track; after the electric push rod 8 is powered on, the output end thereof moves linearly in the vertical direction; since the output end is rigidly connected with the top of the heater 5, the extension and contraction of the electric push rod 8 directly converts into the "lowering- entering" or "rising-exiting" action of the heater 5 relative to the hot box 3; During the testing stage, the electric push rod 8 is extended, so that the heater 5 is lowered and extends into the inside of the heat box 3 through the opening 301; after the testing is completed, the electric push rod 8 is retracted, so that the heater 5 is wholly lifted and completely separated from the opening 301, and the sealing plate 6 is left with a closed space, so that the heat source is quickly physically isolated from the environment in the box.

[0032] As a further scheme of the present application, the linkage assembly comprises a rotating shaft 9 and a sleeve 10, the rotating shaft 9 is vertically arranged on the heat box 3 and the support 7; The sleeve 10 is fixedly arranged on the heater 5, and the sleeve 10 is slidably sleeved on the outer wall of the rotating shaft 9; The inner wall of the sleeve 10 is rollingly embedded with a ball 11, and the outer wall of the rotating shaft 9 is provided with a spiral groove 901 along the length direction of the rotating shaft 9, and the ball 11 is also rollingly embedded in the spiral groove 901; The linkage assembly further comprises a rotating rod 12 which is vertically arranged on the heat box 3 and the support 7, one end of the sealing plate 6 is movably sleeved on the outer wall of the rotating rod 12, and the top surface of the sealing plate 6 is attached to the inner top surface of the heat box 3; The inner wall of one end of the sealing plate 6 is rollingly embedded with a steel ball 13, the outer wall of the rotating rod 12 is provided with a V-shaped groove 1201 along the length direction of the rotating rod 12, and the steel ball 13 is also rollingly embedded in the V-shaped groove 1201; The other end of the sealing plate 6 is fixedly provided with a protrusion 601, the inner wall of the heat box 3 is vertically and horizontally provided with a vertical groove 302 and a horizontal groove 303 respectively, and the bottom end of the vertical groove 302 is communicated with the horizontal groove 303; The protrusion 601 is slidably arranged in the vertical groove 302, and the horizontal height of the horizontal groove 303 is equal to the horizontal height of the bottom end of the V-shaped groove 1201; The inside of the heat box 3 is vertically fixedly provided with a limiting rod 14, when the sealing plate 6 rotates half a circle, the protrusion 601 and the limiting rod 14 will resist each other to block the continuous rotation of the sealing plate 6, and an avoiding hole 602 corresponding to the bottom end of the rotating shaft 9 is vertically and horizontally provided in the sealing plate 6; Under the interaction of the steel ball 13, the limiting rod 14, the V-shaped groove 1201, the vertical groove 302 and the horizontal groove 303, when the rotating rod 12 rotates, the sealing plate 6 will first vertically slide down, then vertically move up after rotating half a circle with the rotating rod 12 as the center, so as to close the opening 301; A small pulley 15 is coaxially fixedly arranged on the rotating shaft 9, a large pulley 16 is coaxially fixedly arranged on the rotating rod 12, and the small pulley 15 and the large pulley 16 are connected through a toothed belt 17.

[0033] In this embodiment, please refer to Figure 3 ,Figure 4 、 Figure 6 、 Figure 7 and Figure 8 The electric push rod 8 drives the heater 5 to vertically move upward, and the sleeve 10 on the heater 5 slides along the rotating shaft 9; the rolling balls 11 on the inner wall of the sleeve 10 are embedded in the spiral groove 901 of the rotating shaft 9, and the linear sliding of the sleeve 10 forces the rolling balls 11 to roll along the spiral groove 901, so that the rotating shaft 9 rotates; The small pulley 15 at the top end of the rotating shaft 9 drives the large pulley 16 through the toothed belt 17, the rotating speed is reduced and the torque is increased, and the rotating shaft 9 is driven to rotate synchronously; In the initial stage of the rotation of the rotating shaft 12, the steel ball 13 of the sealing plate 6 is located on the upper section of the V-shaped groove 1201, and under the guidance of the vertical groove 302 and the protrusion 601, the sealing plate 6 can only vertically descend and leave the top surface of the heat box 3; When the steel ball 13 reaches the bottom end of the V-shaped groove 1201, the protrusion 601 also enters the horizontal groove 303; the guidance changes from “vertical” to “horizontal”, the sealing plate 6 rotates horizontally by half a circle with the rotating shaft 12 as the center, the protrusion 601 slides in the horizontal groove 303, and stops until the limiting rod 14 is hit; at this time, the avoiding hole 602 is coaxially aligned with the opening 301; The rotating shaft 12 continues to rotate in the same direction, the steel ball 13 rises along the inclined surface on the other side of the V-shaped groove 1201, the sealing plate 6 is lifted and re-tightly attached to the top surface of the heat box 3, completely sealing the opening 301, and realizing heat source isolation.

[0034] As a further scheme of the application, the clamping assembly comprises a sliding rail 18 and a sliding seat 19, the sliding rail 18 is vertically fixedly arranged on the machine table 1; The sliding seat 19 is fixedly arranged on the heat box 3, and the sliding seat 19 is vertically slidably matched with the sliding rail 18; A lead screw 20 is vertically arranged on the machine table 1 and is threadedly matched with the heat box 3; A motor 21 is fixedly arranged on the machine table 1, an output end of the motor 21 is coaxially fixedly connected with one end of the lead screw 20, and sealing strips 22 are arranged at the openings of the cold box 2 and the heat box 3.

[0035] In this embodiment, please refer to Figure 1 and Figure 9 After the motor 21 is powered, the output end drives the lead screw 20 to rotate; since the heat box 3 is threadedly matched with the lead screw 20, and the sliding seat 19 on the heat box 3 is limited from rotating by the sliding rail 18 vertically fixed on the machine table 1, the rotating movement of the lead screw 20 is converted into the pure linear lifting of the heat box 3 along the sliding rail 18; The lead screw 20 continuously rotates, and the heat box 3 stably descends until the sealing strips 22 at the opening end face of the heat box 3 and the sealing strips 22 at the opening end face of the cold box 2 press the two sides of the wallboard from top to bottom, forming double linear seals; The motor 21 continues to output a small rotation angle, the screw rod 20 generates a small axial feed, and the two layers of sealing strips 22 are compressed to realize reliable sealing and stable clamping of the cavities on both sides of the wallboard, thereby providing a sealed environment for subsequent thermal insulation performance testing.

[0036] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and that the present application can be carried out in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, it is to be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, and the scope of the present application is to be determined by the appended claims rather than the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0037] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A wall thermal insulation performance detection device for architectural design, comprising a table (1), a cold tank (2) and a hot tank (3), characterized in that, The cold box (2) is fixedly arranged on the machine table (1), and the hot box (3) is movably arranged above the cold box (2) through a clamping assembly, and under the action of the clamping assembly, the hot box (3) can drive the cold box (2) to seal and clamp the two sides of the wallboard. Further comprising a temperature sensor (4), a heater (5) and a sealing plate (6), the temperature sensor (4) is fixedly arranged in the cold box (2), for detecting the temperature change in the cold box (2), so as to detect the heat preservation performance of the wallboard. A through hole (301) is formed in the top of the hot box (3), the heater (5) is movably arranged on the hot box (3) through a driving assembly, and the heater (5) extends into the hot box (3) through the through hole (301). The sealing plate (6) is arranged in the hot box (3) through a linkage assembly, and the linkage assembly cooperates with the driving assembly, when the heater (5) completes heating in the hot box (3) and is removed from the hot box (3) through the through hole (301) under the action of the driving assembly, the linkage assembly drives the sealing plate (6) to close the through hole (301).

2. The wall thermal insulation performance detection device for architectural design according to claim 1, characterized in that, The driving assembly comprises a bracket (7) and an electric push rod (8), the bracket (7) is fixedly arranged on the hot box (3); The electric push rod (8) is fixedly arranged on the bracket (7), and the output end of the electric push rod (8) is fixedly connected with the top of the heater (5).

3. The wall thermal insulation performance detection device for architectural design according to claim 2, characterized in that, The linkage assembly comprises a rotating shaft (9) and a sleeve (10), the rotating shaft (9) is vertically rotatably arranged on the hot box (3) and the bracket (7); The sleeve (10) is fixedly arranged on the heater (5), and the sleeve (10) is slidably arranged on the outer wall of the rotating shaft (9).

4. The wall thermal insulation performance detection device for architectural design according to claim 3, characterized in that, The inner wall of the sleeve (10) is rollingly embedded with a ball (11), and the outer wall of the rotating shaft (9) is provided with a spiral groove (901) along the length direction thereof, and the ball (11) is also rollingly embedded in the spiral groove (901).

5. The wall thermal insulation performance detection device for architectural design according to claim 3, characterized in that, The linkage assembly further comprises a rotating rod (12) which is vertically rotatably arranged on the hot box (3) and the bracket (7), one end of the sealing plate (6) is movably arranged on the outer wall of the rotating rod (12), and the top surface of the sealing plate (6) is attached to the inner top surface of the hot box (3); The inner wall of one end of the sealing plate (6) is rollingly embedded with a steel ball (13), and the outer wall of the rotating rod (12) is provided with a V-shaped groove (1201) along the length direction thereof, and the steel ball (13) is also rollingly embedded in the V-shaped groove (1201).

6. The wall thermal insulation performance detection device for architectural design according to claim 5, characterized in that, The other end of the sealing plate (6) is fixedly provided with a protruding block (601), the inner wall of the hot box (3) is vertically and horizontally provided with a vertical groove (302) and a horizontal groove (303), respectively, and the bottom end of the vertical groove (302) is communicated with the horizontal groove (303); The protruding block (601) is slidably arranged in the vertical groove (302), and the horizontal height of the horizontal groove (303) is equal to the horizontal height of the bottom end of the V-shaped groove (1201).

7. The wall thermal insulation performance detection device for architectural design according to claim 6, characterized in that, The interior of the heat box (3) is vertically fixed with a limiting rod (14), when the sealing plate (6) rotates half a circle, the convex block (601) and the limiting rod (14) will resist each other to prevent the sealing plate (6) from continuing to rotate, the sealing plate (6) is throughly provided with an avoiding hole (602) corresponding to the bottom end of the rotating shaft (9); Under the interaction of the steel ball (13), the limiting rod (14), the V-shaped groove (1201), the vertical groove (302) and the horizontal groove (303), when the rotating rod (12) rotates, the sealing plate (6) will first vertically slide down, then rotate half a circle with the rotating rod (12) as the center and then vertically move up to close the opening (301).

8. The wall thermal insulation performance detection device for architectural design according to claim 5, characterized in that, The rotating shaft (9) is coaxially fixed with a small pulley (15), the rotating rod (12) is coaxially fixed with a large pulley (16), the small pulley (15) and the large pulley (16) are connected through a toothed belt (17).

9. The wall thermal performance detection device for architectural design according to claim 1, characterized in that, The clamping assembly comprises a sliding rail (18) and a sliding seat (19), the sliding rail (18) is vertically fixed on the machine table (1); The sliding seat (19) is fixed on the heat box (3), and the sliding seat (19) and the sliding rail (18) are vertically slidingly matched.

10. The wall thermal insulation performance detection device for architectural design according to claim 9, characterized in that, The machine table (1) is vertically rotatably provided with a lead screw (20), and the lead screw (20) is threadedly matched with the heat box (3); The machine table (1) is fixed with a motor (21), one end of the lead screw (20) is coaxially fixedly connected with the output end of the motor (21), and the heat box (3) is provided with a sealing strip (22) at the opening.

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