Wall thermal insulation performance detection device for architectural design

Abstract

The application relates to the technical field of wall detection, in particular to a wall heat preservation performance detection device for architectural 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, further comprises a temperature sensor, a heater and a sealing plate, the temperature sensor is fixedly arranged in the cold box, a hole is formed in the top of the hot box, the heater is arranged on the hot box in a lifting mode through a driving assembly, the heater extends into the hot box through the hole, the sealing plate is arranged in the hot box through a linkage assembly, and the linkage assembly and the driving assembly are matched with each other, the driving assembly and the linkage assembly are cooperatively matched, the heater can be integrally moved out of the hot box after heating, meanwhile, the sealing plate automatically closes the hole, and the physical isolation of the heat source and the internal environment of the hot box is realized; compared with the traditional mode of only closing the heat source, the sustained heat radiation or heat conduction interference caused by the slow dissipation of the residual heat of the heater 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 prerequisite for evaluating its energy-saving effect and optimizing the design. At present, the industry generally uses "hot box method" or "heat flow meter method" to detect the wall thermal insulation performance in the laboratory or on site.

[0003] The traditional hot 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. By maintaining a constant temperature difference on both sides, the heat transfer coefficient of the wall is calculated by using a heat flow sensor or a temperature sensor.

[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 a manual plug, 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.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] 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.

[0008] 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.

[0009] 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.

[0010] The sealing plate is arranged in the interior of the heat box through a linkage assembly, and the linkage assembly cooperates with the driving assembly, when the heating of the interior of the heat box is completed and the driving assembly drives the sealing plate to move out from the heat box through the opening, the linkage assembly will drive the sealing plate to close the opening.

[0011] The wall heat preservation performance detection device for architectural design has the advantages of simple structure, convenient operation, high efficiency, and high accuracy.

[0012] The driving assembly comprises a support and an electric push rod, and the support is fixedly arranged in the heat box.

[0013] 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.

[0014] The wall heat preservation performance detection device for architectural design has the advantages of simple structure, convenient operation, high efficiency, and high accuracy.

[0015] The linkage assembly comprises a rotating shaft and a sleeve, and the rotating shaft is vertically arranged in the heat box and the support.

[0016] The sleeve is fixedly arranged on the heater, and the sleeve is slidably arranged on the outer wall of the rotating shaft.

[0017] The wall heat preservation performance detection device for architectural design has the advantages of simple structure, convenient operation, high efficiency, and high accuracy.

[0018] 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 of the rotating shaft, and the ball is also rollingly embedded in the spiral groove.

[0019] The wall heat preservation performance detection device for architectural design has the advantages of simple structure, convenient operation, high efficiency, and high accuracy.

[0020] The linkage assembly further comprises a rotating rod which is vertically arranged in the heat 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 heat box.

[0021] The inner wall of one end of the sealing plate is rollingly embedded with a steel ball, and the outer wall of the rotating rod is provided with a V-shaped groove along the length direction of the rotating rod, and the steel ball is also rollingly embedded in the V-shaped groove.

[0022] The wall heat preservation performance detection device for architectural design has the advantages of simple structure, convenient operation, high efficiency, and high accuracy.

[0023] The other end of the sealing plate is fixedly provided with a protrusion, the inner wall of the heat 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.

[0024] 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.

[0025] The wall thermal insulation performance detection device for architectural design as described above:

[0026] The heat box is internally 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 block the continuous rotation of the sealing plate, the sealing plate is provided with an avoiding hole corresponding to the bottom end of the rotating shaft;

[0027] 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 downward, then rotate half a circle with the rotating rod as the center and then vertically move upward to close the opening.

[0028] The wall thermal insulation performance detection device for architectural design as described above:

[0029] The rotating shaft is coaxially fixed with a small pulley, the rotating rod is coaxially fixed with a large pulley, and the small pulley and the large pulley are connected through a toothed belt.

[0030] The wall thermal insulation performance detection device for architectural design as described above:

[0031] The clamping assembly comprises a sliding rail and a sliding seat, the sliding rail is vertically fixed on the machine table;

[0032] The sliding seat is fixed on the heat box, and the sliding seat and the sliding rail vertically slide.

[0033] The wall thermal insulation performance detection device for architectural design as described above:

[0034] The machine table is vertically rotatably provided with a lead screw, and the lead screw is threadedly connected with the heat box;

[0035] The machine table is fixed with a motor, one end of the lead screw is coaxially fixedly connected with the output end of the motor, and the heat box and the cold box are provided with sealing strips at the openings.

[0036] Compared with the prior art, the beneficial effects of the present application are:

[0037] Through the upper and lower sealing and clamping structures of the cold box and the heat box, the accurate isolation and stable fixation of the two sides of the wall plate are realized, and the closed and reliable test environment is ensured.

[0038] The cooperation of the driving assembly and the linkage assembly enables the heater to be removed from the heat box as a whole after heating is completed, and the sealing plate automatically closes the opening, thereby realizing physical isolation of the heat source and the internal environment of the heat box. Compared with the traditional method of only turning off the heat source, the continuous heat radiation or heat conduction interference caused by the difficulty of quickly dissipating the residual heat of the heater is effectively avoided, the stability of the temperature control in the heat box is improved, and the temperature sensor monitors the temperature change in the cold box in real time, and in combination with the heating data of the heat box, the thermal insulation performance of the wall can be accurately evaluated. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the wall thermal insulation performance detection device for architectural design.

[0040] Figure 2 It is a sectional view of the heat box, sleeve and sealing plate in the wall thermal insulation performance detection device for architectural design.

[0041] Figure 3 It is Figure 2 the enlarged view of A in the middle.

[0042] Figure 4 It is Figure 2 the enlarged view of B in the middle.

[0043] Figure 5 It is a sectional view of the heat box in the wall thermal insulation performance detection device for architectural design.

[0044] Figure 6 It is Figure 5 the enlarged view of C in the middle.

[0045] Figure 7 It is a split schematic diagram of the sealing plate and rotating rod in the wall thermal insulation performance detection device for architectural design.

[0046] Figure 8 It is Figure 2 the enlarged view of D in the middle.

[0047] Figure 9 It is another perspective view of the overall structure of the wall thermal insulation performance detection device for architectural design.

[0048] In the figure: 1, machine table; 2, cold box; 3, heat box; 301, opening; 302, vertical groove; 303, horizontal groove; 4, temperature sensor; 5, heater; 6, sealing plate; 601, protrusion; 602, avoidance 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, sliding rail; 19, sliding seat; 20, lead screw; 21, motor; 22, sealing strip. DETAILED DESCRIPTION

[0049] 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 some of the embodiments of the present application, but not all of the embodiments.

[0050] Please refer to Figures 1-9 As an embodiment of the present application, the wall thermal insulation performance detection device for architectural 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 drive the hot box 3 to seal and clamp the two sides of the wallboard in cooperation with the cold box 2.

[0051] It also comprises a temperature sensor 4, a heater 5 and a sealing plate 6. The temperature sensor 4 is fixedly arranged in the cold box 2, and is used to detect the temperature change in the cold box 2, so as to detect the thermal insulation performance of the wallboard.

[0052] The hot box 3 is provided with an opening 301 at the top. 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 opening 301.

[0053] 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 heating of the heater 5 in the hot box 3 is completed and the heater 5 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.

[0054] In this embodiment, the clamping assembly presses the hot box 3 downward as a whole, and the cold box 2 fixed on the machine table 1 is folded up and down, so that the wallboard is tightly clamped between the cold box 2 and the hot box 3, forming two independent and sealed temperature control cavities.

[0055] The driving assembly sends the heater 5 into the hot box 3 through the opening 301, and continuously heats the hot side cavity. The temperature sensor 4 in the cold box 2 records the temperature change of the cold side in real time, and provides original data for subsequent calculation of the heat transfer coefficient.

[0056] After the heating is completed, 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 close the opening 301, so as to realize the physical isolation of the heat source and the environment in the box, and eliminate the interference of residual heat radiation and convection.

[0057] 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 combines the known heating power and temperature difference. According to the standard algorithm, the system can accurately calculate the thermal insulation performance index of the wallboard.

[0058] As a further scheme of the present application, the driving assembly comprises a bracket 7 and an electric push rod 8, the bracket 7 is fixedly arranged on the heat box 3;

[0059] 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.

[0060] In this embodiment, please refer to Figure 1 and Figure 9 The bracket 7 is fastened on the top of the heat box 3 to provide a rigid mounting position for the electric push rod 8, so as 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 performs linear extension and retraction in the vertical direction; since the output end is rigidly connected with the top of the heater 5, the extension and retraction of the electric push rod 8 is directly converted into the “descending- entering” or “rising-exiting” action of the heater 5 relative to the heat box 3.

[0061] In the test stage, the electric push rod 8 is extended so that the heater 5 is lowered to extend into the interior of the heat box 3 through the opening 301; after the test is completed, the electric push rod 8 is retracted so that the heater 5 is entirely lifted and separated from the opening 301 to leave a closed space for the sealing plate 6, thereby realizing the rapid physical isolation of the heat source from the environment in the box.

[0062] 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 bracket 7;

[0063] 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;

[0064] The inner wall of the sleeve 10 is rollingly embedded with a ball 11, 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;

[0065] The linkage assembly further comprises a rotating rod 12 which is vertically arranged on the heat box 3 and the bracket 7, one end of the sealing plate 6 is slidably 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;

[0066] 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 thereof, and the steel ball 13 is also rollingly embedded in the V-shaped groove 1201;

[0067] 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, and the bottom end of the vertical groove 302 is communicated with the horizontal groove 303;

[0068] The protrusion 601 is slidingly 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;

[0069] The inside of the heat box 3 is vertically and fixedly provided with a limiting rod 14, when the sealing plate 6 rotates by half a circle, the protrusion 601 and the limiting rod 14 will resist each other to stop the sealing plate 6 from continuing to rotate, and the sealing plate 6 is provided with an avoiding hole 602 corresponding to the bottom end of the rotating shaft 9;

[0070] 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 descend, then rotate by half a circle with the rotating rod 12 as the center and then vertically move up to close the opening 301;

[0071] The rotating shaft 9 is coaxially and fixedly provided with a small pulley 15, the rotating rod 12 is coaxially and fixedly provided with a large pulley 16, and the small pulley 15 and the large pulley 16 are connected through a toothed belt 17.

[0072] 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 up, and the sleeve 10 on the heater 5 slides along the rotating shaft 9; the ball 11 on the inner wall of the sleeve 10 is embedded in the spiral groove 901 of the rotating shaft 9, the linear sliding of the sleeve 10 forces the ball 11 to roll along the spiral groove 901, so that the rotating shaft 9 rotates;

[0073] 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 rod 12 is driven to synchronously rotate;

[0074] In the initial stage of the rotation of the rotating rod 12, the steel ball 13 of the sealing plate 6 is located on the upper segment of the V-shaped groove 1201, 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 in the heat box 3;

[0075] 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 rod 12 as the center, the protrusion 601 slides in the horizontal groove 303 until it stops by colliding with the limiting rod 14, and at this time, the avoiding hole 602 is coaxially aligned with the opening 301;

[0076] The rotating rod 12 continues to rotate in the same direction, the steel ball 13 rises along the other side slope of the V-shaped groove 1201, the sealing plate 6 is lifted and reattached to the top surface of the hot box 3, completely seals the opening 301, and realizes heat source isolation.

[0077] As a further scheme of the present 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;

[0078] The sliding seat 19 is fixedly arranged on the hot box 3, and the sliding seat 19 is vertically slidably matched with the sliding rail 18;

[0079] A lead screw 20 is vertically rotatably arranged on the machine table 1, and the lead screw 20 is threadedly matched with the hot box 3;

[0080] 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 opening portions of the cold box 2 and the hot box 3.

[0081] 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 hot box 3 is threadedly matched with the lead screw 20, and the sliding seat 19 on the hot box 3 is vertically fixedly arranged on the sliding rail 18 on the machine table 1 and is limited to rotate, the rotating movement of the lead screw 20 is converted into the pure linear lifting of the hot box 3 along the sliding rail 18;

[0082] The lead screw 20 continuously rotates, and the hot box 3 stably descends until the sealing strips 22 at the opening end surfaces of the hot box 3 and the cold box 2 are matched to press the wallboards on both sides from top to bottom, and form double linear seals;

[0083] The motor 21 continuously outputs a small rotation angle, the lead screw 20 generates a small amount of axial feed, and the two sealing strips 22 are compressed, so that the cavities on both sides of the wallboard are reliably sealed and stably clamped, and a closed environment is provided for subsequent heat preservation performance testing.

[0084] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0085] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

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; The hot box (3) is provided with an opening (301) at the top, the heater (5) is arranged on the hot box (3) through a driving assembly, and the heater (5) extends into the hot box (3) through the opening (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) 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); 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); The linkage assembly comprises a rotating shaft (9) and a sleeve (10), the rotating shaft (9) is vertically 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); 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, 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 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).

2. The wall thermal insulation performance detection device for architectural design according to claim 1, characterized in that, 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, and the steel ball (13) is also rollingly embedded in the V-shaped groove (1201).

3. The wall thermal insulation performance detection device for architectural design according to claim 2, characterized in that, The other end of the sealing plate (6) is fixedly provided with a protrusion (601), the inner wall of the hot box (3) is vertically and horizontally provided with a vertical groove (302) and a horizontal groove (303), 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).

4. The wall thermal insulation performance detection device for architectural design according to claim 3, 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).

5. The wall thermal insulation performance detection device for architectural design according to claim 2, 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).

6. 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.

7. The wall thermal insulation performance detection device for architectural design according to claim 6, 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.

Images