A wall heat transfer device that is easy to move

Abstract

The application relates to a wall heat transfer device convenient to move, and relates to the technical field of building energy saving, comprising a test piece frame, a cold box arranged on the left side of the test piece frame and a hot box arranged on the right side of the test piece frame; a plurality of extension plates are fixed on the bottom surface of the test piece frame in the horizontal direction; the extension plates protrude from the bottom surface of the test piece frame, and the protruding parts are respectively located on the sides of the hot box and the cold box; a plurality of moving wheels are fixed on the bottom surface of the extension plate; the test piece frame can be easily moved and accurately adjusted in position, damage of the device caused by forced adjustment is avoided, and time and labor cost are greatly saved.

Description

Technical Field

[0001] This application relates to the technical field of building energy conservation, and in particular to a portable wall heat transfer device. Background Technology

[0002] Currently, as an important component of building envelope, the heat transfer characteristics of walls directly affect the energy consumption level of buildings. Accurately grasping wall heat transfer data helps to optimize building energy-saving design, improve energy utilization efficiency, and reduce building operating costs. In order to achieve a scientific evaluation of wall heat transfer performance, it is necessary to use professional testing equipment to simulate actual working conditions and obtain reliable data, thereby providing strong support for the research and application of building energy-saving technologies.

[0003] In related technologies, a wall heat transfer device mainly consists of a test specimen frame, a cold box, and a hot box. The test specimen frame, such as a window or wall to be tested, is fixedly installed inside the test specimen frame. The cold box is installed on the left side of the test specimen frame, and the hot box is installed on the right side. During the test, to ensure the accuracy of the test results, the test specimen frame, cold box, and hot box are usually firmly fixed to the ground. During the test, heat is transferred from the hot box to the cold box. The heat transfer performance of the test specimen frame is analyzed by detecting relevant data during this process.

[0004] In the aforementioned related technologies, when the device is first installed, misalignment may occur between the specimen frame and the cold and hot boxes due to various factors. However, since all three are fixed to the ground, adjusting the position of the specimen frame or the hot box at this time is extremely difficult. This difficulty in adjustment not only consumes a lot of time and manpower, but may also damage the device due to forced adjustment, affecting the normal conduct of testing. There is room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide a wall heat transfer device that is easy to move, solving the problem in the above-mentioned related technologies that the operation of adjusting the position of the cold box and the hot box is difficult and consumes a lot of time and manpower.

[0006] The wall heat transfer device that is easy to move provided in this application adopts the following technical solution: A portable wall heat transfer device includes a test specimen frame, with a cold box on the left and a hot box on the right. Several extension plates are fixedly arranged side by side along the horizontal direction on the bottom surface of the test specimen frame. The extension plates protrude from the bottom surface of the test specimen frame, with the protruding portions facing one side of the hot box and the cold box, respectively. Several casters are fixedly arranged on the bottom surface of the extension plates. The casters can drive the test specimen frame to move continuously and adjust its position.

[0007] By adopting the above technical solution, in the installation and layout of the device, traditional devices are extremely difficult to adjust when misalignment occurs because the cold box, hot box, and specimen frame are fixed to the ground. However, this device has an extension plate on the bottom surface of the specimen frame, and a moving wheel is installed on the bottom surface of the extension plate, which can easily move the specimen frame and accurately adjust its position, avoiding damage to the device that may be caused by forced adjustment, and greatly saving time and labor costs. In terms of adaptability to testing scenarios, the device can be quickly moved to a suitable position to meet different testing sites and requirements without the need for cumbersome reinstallation and fixing procedures. In addition, this movable design also facilitates the transportation and storage of the device, improving the flexibility and versatility of the device.

[0008] Optionally, a first latch and a second latch are provided side by side on the front side of the specimen frame; when the opposite sides of the specimen frame abut against the sides of a cold box or a hot box respectively, the first latch is detachably connected to the cold box and the second latch is detachably connected to the hot box.

[0009] By adopting the above technical solution, when it is necessary to assemble the specimen frame with the cold box and the hot box to carry out heat transfer performance testing during the testing process, it is only necessary to abut the opposite two sides of the specimen frame with the sides of the cold box and the hot box respectively, and then use the first and second latches to achieve detachable connection with the cold box and the hot box. The operation is simple and fast, and can effectively improve the assembly efficiency of the device.

[0010] Optionally, a fixing plate can be detachably installed on the front side of the specimen frame, and both the first and second latches can be detachably installed on the front side of the fixing plate away from the specimen frame.

[0011] By adopting the above technical solution, the first and second latches are installed on a detachable fixing plate. When the latches are damaged, aged, or need to be replaced with other types of latches according to different testing requirements, the staff does not need to perform complicated operations on the test piece frame. They can simply remove the fixing plate from the front side of the test piece frame to easily replace or repair the first and second latches.

[0012] Optionally, a number of casters are fixed on the bottom surface of the heating box.

[0013] By adopting the above technical solution, in the process of wall heat transfer testing, different test scenarios and requirements often require precise adjustment of the position of the heat box, such as changing the relative distance and angle between the heat box and the test specimen frame. In traditional devices, the heat box is fixedly installed, making position adjustment extremely difficult. However, this solution is equipped with several universal wheels on the bottom of the heat box, allowing operators to easily push the heat box, enabling it to move and rotate freely in the horizontal direction, and quickly and accurately reach the required position.

[0014] Optionally, the top surface of the extension plate is provided with an elastic element, and the bottom surface of the hot box is provided with a plurality of positioning grooves. The elastic element can be inserted into the positioning grooves when the side of the specimen frame abuts against the side of the hot box.

[0015] By adopting the above technical solution, this snap-fit ​​structure achieves the initial fixation between the specimen frame and the hot box; at the same time, the cooperation between the elastic element and the positioning groove can also provide clear connection feedback to the operator. When the sound of the elastic element snapping into the positioning groove is heard or the change in the resistance of the snap-fit ​​is felt, it can be determined that the specimen frame and the hot box have been accurately connected in place, which further improves the convenience and reliability of the device and ensures the smooth progress of the wall heat transfer test.

[0016] Optionally, the top surface of the extension plate is provided with a mounting groove for inserting an elastic element. The elastic element includes a spring and a positioning protrusion. One end of the spring presses one side of the positioning protrusion so that a part of the positioning protrusion protrudes out of the opening of the mounting groove. The protruding part of the positioning protrusion is an arc surface, and the arc length corresponding to the arc surface of the protruding part is a minor arc.

[0017] By adopting the above technical solution, the elastic element is placed in the mounting groove on the top surface of the extension plate, which not only protects the elastic element but also makes its installation more stable. The elastic element consists of a spring and a positioning protrusion. The spring compresses the positioning protrusion so that part of it protrudes out of the mounting groove opening. This design allows the positioning protrusion to extend and retract flexibly when subjected to external force. The protruding part of the positioning protrusion is an arc surface with a minor arc length. When the specimen frame comes into contact with the hot box, the arc surface structure allows the positioning protrusion to slide more smoothly into the positioning groove on the bottom surface of the hot box, reducing jamming and improving connection efficiency.

[0018] Optionally, two push handles are fixed side by side on the side of the hot box away from the specimen frame.

[0019] By adopting the above technical solution, a push handle is fixedly installed on the side of the hot box away from the specimen frame. The operator can easily hold the handle and use the strength of his arm to push, pull, and turn the hot box, and accurately control the direction and speed of the hot box's movement. This not only greatly reduces the difficulty of operation and improves the efficiency of movement, but also avoids the safety hazards such as burns that may be caused by the operator directly contacting the hot box body.

[0020] Optionally, an elastic protective sleeve is fixedly fitted on the outer peripheral surface of the push handle.

[0021] By adopting the above technical solution, the elastic protective sleeve can increase the friction between the hand and the handle, prevent slippage caused by sweaty hands, and further ensure the safety of operation.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. In the installation and layout of the device, traditional devices are extremely difficult to adjust when misalignment occurs because the cold box, hot box, and specimen frame are fixed to the ground. However, this device has an extension plate on the bottom of the specimen frame, and the bottom of the extension plate is equipped with casters, which can easily move the specimen frame and accurately adjust its position, avoiding damage to the device that may be caused by forced adjustment, and greatly saving time and labor costs. In terms of adaptability to testing scenarios, the device can be quickly moved to a suitable position to meet different testing sites and requirements without the need for cumbersome reinstallation and fixing procedures. In addition, this movable design also facilitates the transportation and storage of the device, improving its flexibility and versatility. 2. A push handle is fixedly installed on the side of the hot chamber away from the specimen frame. The operator can easily hold the handle and use the strength of his arm to push, pull, and turn the hot chamber, accurately controlling the direction and speed of the hot chamber's movement. This not only greatly reduces the difficulty of operation and improves the efficiency of movement, but also avoids the safety hazards such as burns that may be caused by the operator directly contacting the hot chamber body. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram illustrating the overall structure of the specimen frame and cold box assembly in an embodiment of this application; Figure 2 This is a cross-sectional structural diagram illustrating the installation and cooperation of the extension plate and the specimen frame in an embodiment of this application; Figure 3 This is a partially enlarged schematic diagram illustrating the installation and cooperation of the first latch and the fixing plate in an embodiment of this application; Figure 4 This is a cross-sectional structural diagram illustrating the installation and cooperation of the positioning protrusion and positioning groove in an embodiment of this application; Figure 5 This is a partially enlarged schematic diagram illustrating the installation and cooperation of the push handle and the hot box in an embodiment of this application.

[0025] In the figure, 1. Specimen frame; 11. First latch; 12. Second latch; 13. Fixing plate; 2. Cold box; 3. Hot box; 31. Positioning groove; 4. Extension plate; 41. Mounting groove; 5. Moving wheel; 6. Universal wheel; 7. Elastic element; 71. Spring; 72. Positioning protrusion; 8. Push handle; 81. Elastic protective sleeve. Detailed Implementation

[0026] The present application will be further described in detail below with reference to all the accompanying drawings.

[0027] Example 1: Reference Figure 1 and Figure 2 A movable wall heat transfer device includes a specimen frame 1, wherein a cold box 2 is installed on the left side of the specimen frame 1 and a hot box 3 is installed on the right side; four extension plates 4 are fixedly installed side by side in the horizontal direction on the bottom surface of the specimen frame 1, with each pair forming a group, wherein the extension plates 4 protrude from the bottom surface of the specimen frame 1, and one group of the protruding parts faces the side of the hot box 3, and the other group faces the side of the cold box 2; four moving wheels 5 are fixedly installed on the bottom surface of the extension plates 4, and the four moving wheels 5 can drive the specimen frame 1 to move continuously and adjust its position precisely according to actual needs.

[0028] Reference Figure 1 Four casters 6 are fixedly installed on the bottom surface of the hot box 3; the casters 6 allow the hot box 3 to adjust its position accurately and conveniently according to different test scenarios and requirements.

[0029] Reference Figure 3 The front side of the specimen frame 1 is equipped with a first latch 11 and a second latch 12 installed side by side. When the two opposite sides of the specimen frame 1 are in close contact with the sides of the cold box 2 and the hot box 3 respectively, the first latch 11 can be detachably connected to the cold box 2, and the second latch 12 can be detachably connected to the hot box 3. This design facilitates the flexible assembly and disassembly of the various components of the device.

[0030] Reference Figure 3 A fixing plate 13 is detachably installed on the front side of the specimen frame 1, and the first latch 11 and the second latch 12 can be detachably installed on the front side of the fixing plate 13 away from the specimen frame 1, which makes it convenient for staff to quickly replace the first latch 11 and the second latch 12 when needed, greatly improving the versatility and maintainability of the device.

[0031] The implementation principle of this application embodiment is as follows: The four casters 5 mounted on the bottom of the extension plate 4 can easily move the specimen frame 1, and can be precisely adjusted as needed, making it convenient to set up tests in different locations.

[0032] Example 2: Reference Figure 4 The difference between this embodiment and Embodiment 1 is that an elastic element 7 is provided on the top surface of the extension plate 4, and a plurality of positioning grooves 31 are provided on the bottom surface of the hot box 3. An installation groove 41 for the elastic element 7 to be inserted is provided on the top surface of the extension plate 4. The elastic element 7 includes a spring 71 and a positioning protrusion 72. One end of the spring 71 presses one side of the positioning protrusion 72 so that a part of the positioning protrusion 72 protrudes out of the opening of the installation groove 41. The protruding part of the positioning protrusion 72 is an arc surface, and the arc length corresponding to the arc surface of the protruding part is a minor arc. When the side of the specimen frame 1 abuts against the side of the hot box 3, the positioning protrusion 72 will accurately engage in the positioning groove 31 on the bottom surface of the hot box 3, thereby playing a role in initially fixing the position; at the same time, a certain sound will be generated during the process of the positioning protrusion 72 engaging in the positioning groove 31, and the operator can use this sound to judge whether the hot box 3 and the specimen frame 1 have been connected in place.

[0033] Reference Figure 5 The hot box 3 is far away from the specimen frame 1 (see Figure 1 Two push handles 8 are fixedly installed side by side on the side of the device. An elastic protective sleeve 81 is fixedly sleeved on the outer circumference of the push handle 8, and the elastic protective sleeve 81 is made of rubber. The push handle is easy for the operator to push, and the rubber elastic protective sleeve 81 can increase the friction between the hand and the push handle 8, preventing the hand from slipping and causing danger.

[0034] The implementation principle of this application embodiment is as follows: When the two sides of the specimen frame 1 come into contact with the cold and hot boxes 3 respectively, the positioning protrusions 72 can be locked into the positioning grooves 31 to achieve fixation. The sound of locking can help the operator judge the connection status. At the same time, a push handle 8 is fixedly installed on the side of the hot box 3 away from the specimen frame 1. This not only makes it easy to push the hot box 3, but also increases the friction between the hand and the handle to prevent the hand from slipping. This effectively avoids danger caused by accidental slippage during the pushing process and ensures the safety and convenience of operation.

[0035] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "one," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable wall heat transfer device, comprising a specimen frame (1), wherein a cold box (2) is provided on the left side of the specimen frame (1) and a hot box (3) is provided on the right side; characterized in that, Several extension plates (4) are fixedly arranged side by side in the horizontal direction on the bottom surface of the specimen frame (1); the extension plates (4) protrude from the bottom surface of the specimen frame (1), and the protruding parts face one side of the hot box (3) and the cold box (2) respectively; several moving wheels (5) are fixedly arranged on the bottom surface of the extension plates (4); the moving wheels (5) can drive the specimen frame (1) to move continuously and adjust its position.

2. The portable wall heat transfer device according to claim 1, characterized in that, The front side of the specimen frame (1) is provided with a first latch (11) and a second latch (12) side by side; when the two opposite sides of the specimen frame (1) abut against the sides of the cold box (2) or the hot box (3) respectively, the first latch (11) is detachably connected to the cold box (2) and the second latch (12) is detachably connected to the hot box (3).

3. The portable wall heat transfer device according to claim 2, characterized in that, A fixing plate (13) is detachably installed on the front side of the specimen frame (1), and the first latch (11) and the second latch (12) can both be detachably installed on the front side of the fixing plate (13) away from the specimen frame (1).

4. The portable wall heat transfer device according to claim 1, characterized in that, Several casters (6) are fixed on the bottom surface of the heating box (3).

5. A portable wall heat transfer device according to claim 1, characterized in that, The top surface of the extension plate (4) is provided with an elastic element (7), and the bottom surface of the hot box (3) is provided with several positioning grooves (31). When the side of the specimen frame (1) abuts against the side of the hot box (3), the elastic element (7) can be inserted into the positioning groove (31).

6. A portable wall heat transfer device according to claim 5, characterized in that, The top surface of the extension plate (4) is provided with an installation groove (41) for inserting the elastic element (7). The elastic element (7) includes a spring (71) and a positioning protrusion (72). One end of the spring (71) presses one side of the positioning protrusion (72) so that a part of the positioning protrusion (72) protrudes out of the opening of the installation groove (41). The protruding part of the positioning protrusion (72) is an arc surface, and the arc length corresponding to the arc surface of the protruding part is a minor arc.

7. A portable wall heat transfer device according to claim 1, characterized in that, Two push handles (8) are fixed side by side on the side of the hot box (3) away from the specimen frame (1).

8. A portable wall heat transfer device according to claim 7, characterized in that, An elastic protective sleeve (81) is fixedly fitted on the outer peripheral surface of the push handle (8).

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