Building wall detection walking clamping device

Abstract

The utility model discloses a building wall detection walking clamping device, including the bottom plate, the upper surface center of bottom plate is fixedly connected with the track, the upper surface one side of track is provided with the sliding structure, and the bottom of sliding structure is in accord with the upper surface of bottom plate, the inner wall center of metering box is installed with the heater, and the outer wall of metering box is provided with the side hydraulic cylinder, and the lateral wall of side hydraulic cylinder is fixedly connected with the lateral wall of box body, and the lower surface of box body is fixedly connected with the base, and the lower surface of base is connected with the upper surface of bottom plate, and is the bolt fixed connection. Make the whole easy seal, avoid the air gap between metering box and wall test piece, and the heat transfer coefficient of air is low, but will cause additional heat loss due to convection and radiation, interfere with the detection result, through the heat output of heater, the temperature field in metering box is more stable after the fitting, ensure the measurement reliability of temperature difference, and the heat preservation performance of building wall is obtained through the detection.

Description

Technical Field

[0001] This utility model relates to the field of building wall insulation technology, specifically to a building wall inspection walking clamping device. Background Technology

[0002] Building wall insulation performance testing devices are a type of building energy efficiency testing. my country is currently strongly advocating energy conservation and emission reduction, and its rapid economic development has led to massive energy consumption, some of which is non-renewable. In building envelopes, walls have the largest surface area, and their insulation performance is paramount. Poor insulation results in wasted electricity for air conditioning in southern summers and wasted coal for heating in northern winters. Testing the thermal insulation performance of building walls is the most direct method to determine whether a building's walls are energy-efficient.

[0003] The standard for testing devices for building wall insulation performance clearly requires that when testing the insulation performance of walls, the measuring box must be placed against the wall specimen and sealed tightly on all sides. The protective box and the specimen frame should also be tightly sealed on all sides. Currently, the industry standard uses a method where the measuring box is fixed inside the protective box, with the end face of the measuring box flush with the end face of the protective box. This requires the user to ensure that the wall specimen is flush with the specimen frame opening and that the wall specimen is flat. However, this method makes it difficult to achieve a tight seal between the measuring box and the wall specimen, and also between the protective box and the specimen frame. Therefore, we propose a walking clamping device for building wall insulation testing. Utility Model Content

[0004] The purpose of this invention is to provide a walking clamping device for detecting building walls, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a walking clamping device for detecting building walls, comprising a base plate, a track fixedly connected to the center of the upper surface of the base plate, a sliding structure provided on one side of the upper surface of the track, the bottom of the sliding structure being in contact with the upper surface of the base plate, a specimen frame fixedly connected to the top of the sliding structure, a wall specimen stacked at the center of the specimen frame, boxes symmetrically arranged on both sides of the specimen frame, the corners of the specimen frame being in contact with the corners of the boxes, a measuring box provided in the inner cavity of one side of the box, a heater installed at the center of the inner wall of the measuring box, side hydraulic cylinders symmetrically arranged on the outer wall of the measuring box, the side walls of the side hydraulic cylinders being fixedly connected to the side walls of the boxes, a base fixedly connected to the lower surface of the box, the lower surface of the base being connected to the upper surface of the base plate by bolts.

[0006] Preferably, a through groove is provided at the bottom of the inner wall of one side of the box body. The box body has three through grooves, which are arranged horizontally and vertically in sequence. Bottom wheels are symmetrically arranged on the lower surface of the metering box, and the bottom of the bottom wheels fits into the through groove of the box body.

[0007] Preferably, the sliding structure includes a support plate, and the support plate is in the shape of an inverted T. A semi-circular groove is formed at the center of the lower surface of the support plate. The semi-circular groove of the support plate is in contact with the upper surface of the track. A rotating shaft is installed in the inner cavity of the support plate. A wheel is installed on the outer wall of the rotating shaft. The wheel is rotatably connected to the support plate through the rotating shaft. The bottom of the wheel is in contact with the upper surface of the base plate.

[0008] Preferably, the upper surface of the specimen frame is provided with an opening, and the opening is rectangular. A bracket is fixedly connected to the upper surface of the specimen frame, a top hydraulic cylinder is fixedly connected to the center of the bracket, a pressure plate is fixedly connected to the bottom of the top hydraulic cylinder, the side wall of the pressure plate is clearance-fitted with the opening of the specimen frame, and the lower surface of the pressure plate is in contact with the upper surface of the wall specimen.

[0009] Preferably, the upper surface of the base plate is symmetrically provided with side plates, the inner sidewalls of the two side plates are clearance-fitted with the two sides of the track, and the side plates are located on the front side of the box body.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the box body adopts a fixed method, and both the specimen frame and the measuring box have the function of movement. After the wall specimen is built and cured, the specimen frame is pushed between the boxes, and the wall specimen is clamped at the same time. It is also hydraulically driven to come close to the box inside, pressing against the measuring box tightly against the specimen, sealing it tightly. This makes the whole box easy to seal tightly, avoiding air gaps between the measuring box and the wall specimen. Although the thermal conductivity of air is low, it will cause additional heat loss due to convection and radiation, interfering with the test results. Through the heat generated by the heater, the temperature field inside the measuring box is more stable after the box is in contact, ensuring the reliability of temperature difference measurement. The thermal insulation performance of the building wall is obtained through testing. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 for Figure 1 Structural sectional view of the middle box;

[0013] Figure 3 for Figure 2 Detailed structural diagram of the sliding structure;

[0014] Figure 4 for Figure 2 Detailed structural diagram of the prototype frame;

[0015] In the diagram: 1. Base plate; 2. Base; 3. Box body; 4. Specimen frame; 5. Wall specimen; 6. Side hydraulic cylinder; 7. Metering box; 8. Heater; 9. Bottom wheel; 10. Sliding structure; 101. Support plate; 102. Rotating shaft; 103. Round wheel; 11. Track; 12. Bracket; 13. Top hydraulic cylinder; 14. Pressure plate; 15. Side plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 This utility model provides a walking clamping device for detecting building walls, including a base plate 1. A track 11 is fixedly connected to the center of the upper surface of the base plate 1. A sliding structure 10 is provided on one side of the upper surface of the track 11, and the bottom of the sliding structure 10 is in contact with the upper surface of the base plate 1. A specimen frame 4 is fixedly connected to the top of the sliding structure 10. A wall specimen 5 is stacked at the center of the specimen frame 4. Boxes 3 are symmetrically arranged on both sides of the specimen frame 4, and the corners of the specimen frame 4 are in contact with the corners of the boxes 3. A measuring box 7 is provided in the inner cavity of one box 3. A heater 8 is installed at the center of the inner wall of the measuring box 7. Side hydraulic cylinders 6 are symmetrically arranged on the outer wall of the measuring box 7. The side walls of the side hydraulic cylinders 6 are fixedly connected to the side walls of the box 3. A base 2 is fixedly connected to the lower surface of the box 3. The lower surface of the base 2 is connected to the upper surface of the base plate 1 by bolts.

[0018] A through groove is provided at the bottom of the inner wall of one side of the box 3. There are three through grooves in the box 3, which are arranged horizontally and vertically in sequence. Bottom wheels 9 are symmetrically arranged on the lower surface of the metering box 7. The bottom of the bottom wheels 9 fits into the through groove of the box 3.

[0019] The sliding structure 10 includes a support plate 101, which is inverted T-shaped. A semi-circular groove is provided at the center of the lower surface of the support plate 101. The semi-circular groove of the support plate 101 is in contact with the upper surface of the track 11. A rotating shaft 102 is installed in the inner cavity of the support plate 101. A wheel 103 is installed on the outer wall of the rotating shaft 102. The wheel 103 is rotatably connected to the support plate 101 through the rotating shaft 102. The bottom of the wheel 103 is in contact with the upper surface of the base plate 1.

[0020] The upper surface of the specimen frame 4 has an opening, which is rectangular. A bracket 12 is fixedly connected to the upper surface of the specimen frame 4. A top hydraulic cylinder 13 is fixedly connected to the center of the bracket 12. A pressure plate 14 is fixedly connected to the bottom of the top hydraulic cylinder 13. The side wall of the pressure plate 14 is clearance-fitted with the opening of the specimen frame 4. The lower surface of the pressure plate 14 is in contact with the upper surface of the wall specimen 5.

[0021] Side plates 15 are symmetrically arranged on the upper surface of the base plate 1. The inner sidewalls of the two side plates 15 are fitted with the two sides of the track 11 with clearance, and the side plates 15 are located on the front side of the box body 3.

[0022] Working Principle: When testing the thermal insulation performance of building walls, the specimen frame 4 is pulled outwards, driven by the sliding structure 10 at the bottom of the specimen frame 4. The sliding structure 10 is mainly composed of a support plate 101, which is an inverted T-shape with a semi-circular groove at the center of its bottom. The support plate 101 is in contact with the track 11 on the surface of the base plate 1, with the track 11 located at the center of the base plate 1. Simultaneously, symmetrically distributed wheels 103 are evenly distributed on both sides of the support plate 101. The wheels 103 are rotatably connected to the support plate 101 via a rotating shaft 102, pushing the specimen frame 4 outwards from its contact with the box 3. This is achieved through the rotation of the wheels 103 and the support plate 101. The support plate 101 slides along the track 11, and a side plate 15 is also provided on the surface of the base plate 1 to limit the movement of the track 11 on both sides. The support plate 101 slides against the inside of the side plate 15, providing a certain limiting function. Then, the wall specimen 5 is built in the pulled-out specimen frame 4. The wall specimen 5 is for testing purposes and is smaller than the actual construction state. It is only used to test the thermal insulation performance. At the same time, pay attention to the flatness of the wall specimen 5. Then, the top hydraulic cylinder 6 is used to move the pressure plate 14. The top hydraulic cylinder 6 operates synchronously and is fixed to the top of the specimen frame 4 by the bracket 12. The top of the specimen frame 4 is provided with an opening. A pressure plate 14 is installed inside the opening. Driven by a top hydraulic cylinder 6, the pressure plate 14 clamps the wall specimen 5 securely. Then, it pushes back the specimen frame 4 to combine with the symmetrical box 3. The box 3 is attached to the base plate 1 via a bottom base 2 and fixed with bolts. A measuring box 7 is installed inside one side of the box 3. The measuring box 7 is a standard specification used only for testing. The bottom of the measuring box 7 is equipped with bottom wheels 9, which fit into three through grooves on one side of the box 3 to ensure the stability of the measuring box 7. Simultaneously, the measuring box 7 is connected to a side hydraulic cylinder 6 on its outer side. The side hydraulic cylinder 6 operates synchronously, pushing the specimen. The measuring chamber 7 is movable, and a heater 8 is installed inside the measuring chamber 7. The heater 8 is a tubular heater, which meets the requirements for heat source stability in "GB / T13475-2008 Determination of Steady-State Heat Transfer Properties of Building Components". The wall specimen 5 is flush with the frame opening of the measuring chamber 7, making the whole easy to seal tightly and avoiding air gaps between the measuring chamber 7 and the wall specimen 5. Although the thermal conductivity of air is low, it will cause additional heat loss due to convection and radiation, interfering with the test results. Through the heat generated by the heater 8, the temperature field inside the measuring chamber 7 is more stable after being in close contact, ensuring the reliability of temperature difference measurement. The thermal insulation performance of the building wall is obtained through testing.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A walking clamping device for detecting building walls, characterized in that: Includes a base plate (1), a track (11) fixedly connected to the center of the upper surface of the base plate (1), a sliding structure (10) provided on one side of the upper surface of the track (11), and the bottom of the sliding structure (10) is in contact with the upper surface of the base plate (1), a specimen frame (4) fixedly connected to the top of the sliding structure (10), a wall specimen (5) stacked at the center of the specimen frame (4), and boxes (3) symmetrically arranged on both sides of the specimen frame (4), and the corners of the specimen frame (4) The measuring box (7) is fitted to the corner of the box (3). A heater (8) is installed in the center of the inner wall of the measuring box (7). Side hydraulic cylinders (6) are symmetrically arranged on the outer wall of the measuring box (7). The side wall of the side hydraulic cylinder (6) is fixedly connected to the side wall of the box (3). A base (2) is fixedly connected to the lower surface of the box (3). The lower surface of the base (2) is connected to the upper surface of the base plate (1) by bolts.

2. The walking clamping device for detecting a building wall according to claim 1, characterized in that: A through groove is provided at the bottom of the inner wall of the box (3) on one side. The box (3) has three through grooves, which are arranged horizontally and vertically in sequence. Bottom wheels (9) are symmetrically arranged on the lower surface of the metering box (7). The bottom of the bottom wheel (9) is in contact with the through groove of the box (3).

3. The walking clamping device for detecting a building wall according to claim 1, characterized in that: The sliding structure (10) includes a support plate (101), and the support plate (101) is in the shape of an inverted T. A semi-circular groove is provided at the center of the lower surface of the support plate (101). The semi-circular groove of the support plate (101) is in contact with the upper surface of the track (11). A rotating shaft (102) is installed in the inner cavity of the support plate (101). A wheel (103) is installed on the outer wall of the rotating shaft (102). The wheel (103) is rotatably connected to the support plate (101) through the rotating shaft (102). The bottom of the wheel (103) is in contact with the upper surface of the base plate (1).

4. The walking clamping device for detecting building walls according to claim 1, characterized in that: The upper surface of the specimen frame (4) is provided with an opening, which is rectangular. A bracket (12) is fixedly connected to the upper surface of the specimen frame (4). A top hydraulic cylinder (13) is fixedly connected to the center of the bracket (12). A pressure plate (14) is fixedly connected to the bottom of the top hydraulic cylinder (13). The side wall of the pressure plate (14) is clearance-fitted with the opening of the specimen frame (4). The lower surface of the pressure plate (14) is in contact with the upper surface of the wall specimen (5).

5. The walking clamping device for detecting building walls according to claim 1, characterized in that: The upper surface of the base plate (1) is symmetrically provided with side plates (15), the inner sidewalls of the two side plates (15) are fitted with the two sides of the track (11) with a clearance, and the side plates (15) are located on the front side of the box body (3).

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