Field measuring device for heat transfer coefficient of building wall

Abstract

The utility model relates to the technical field of wall body detection equipment, in particular to a building wall body heat transfer coefficient field measuring device which comprises a cavity base and a wall body, the cavity base is fixedly installed on the wall body through a fixing assembly, and the top of the cavity base is rotationally connected with a cavity plate through a driving assembly. A temperature sensor is fixedly installed at the telescopic end of the electric telescopic rod, and the bottom of the temperature sensor makes contact with the wall. According to the utility model, the length-adjustable telescopic plate is arranged, the motor I is used for driving the screw rod to rotate, the screw rod is in threaded connection with the telescopic plate, so that the telescopic plate extends outwards in the cavity plate, and the driving assembly is used for driving the cavity plate to intermittently rotate, so that the position of the temperature sensor at the other end of the telescopic plate can be adjusted; and different areas of the wall surface can be measured without repeatedly disassembling and assembling the detection equipment, so that the manpower and the time are greatly saved, and the measurement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wall detection equipment, in particular to a field measurement device for the heat transfer coefficient of building walls. Background Art

[0002] The wall is an important part of a building. Its functions are to bear weight, enclose and separate spaces. Before the delivery of a construction project, it is necessary to detect the heat transfer coefficient of the building wall. Therefore, a field measurement device for the heat transfer coefficient of building walls is needed.

[0003] To ensure the accuracy of the measurement results, generally, staff need to use temperature sensors to detect different areas of the wall. However, the position of the temperature sensors in the existing detection equipment cannot be adjusted arbitrarily. Therefore, when it is necessary to detect different areas of the wall, the staff need to repeatedly disassemble and assemble the detection equipment, resulting in a waste of a large amount of manpower and time and reducing the work efficiency. Content of the Utility Model

[0004] Aiming at the above-mentioned shortcomings of the prior art, the utility model provides a field measurement device for the heat transfer coefficient of building walls, which can effectively solve the problem in the prior art that the staff need to repeatedly disassemble and assemble the detection equipment, resulting in a waste of a large amount of manpower and time and reducing the work efficiency.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0006] The utility model provides a field measurement device for the heat transfer coefficient of building walls, including a cavity base and a wall. The cavity base is fixedly installed on the wall through a fixing component, and the top of the cavity base is rotatably connected with a cavity plate through a driving component;

[0007] A lead screw is rotatably connected to the inner bottom wall of the cavity plate. An expansion plate is sleeved on the outer side of the lead screw in a threaded manner. The outer wall of the expansion plate is in limit sliding connection with the inner wall of the lead screw. The bottom of the other end of the expansion plate is fixedly installed with an electric telescopic rod, and the telescopic end of the electric telescopic rod is fixedly installed with a temperature sensor. The bottom of the temperature sensor is in contact with the wall. A motor I for driving the lead screw is fixedly installed on the outer side wall of the cavity plate.

[0008] According to the above-mentioned field measurement device for the heat transfer coefficient of building walls, the fixing component includes a suction pump fixedly installed on the side wall of the cavity base and a plurality of suction cups fixedly installed in a rectangular array at the bottom of the cavity base. The suction end of the suction pump is communicated with a suction pipe, and the other end of the suction pipe is communicated with a plurality of connecting pipes through a multi-way pipe. The other ends of the plurality of connecting pipes are respectively communicated with each suction cup.

[0009] According to the on-site measurement device for the heat transfer coefficient of a building wall described above, the driving assembly includes a second motor fixedly installed inside the cavity of the cavity base. The output end of the second motor penetrates through the top of the cavity base and is fixedly installed with a driving disk. The middle part of the top of the cavity base is rotatably connected with a rotating shaft. A grooved pulley is fixedly installed on the outer side of the rotating shaft, and the top end of the rotating shaft is fixedly connected with the bottom of the cavity plate. The driving disk is meshed with the grooved pulley.

[0010] According to the on-site measurement device for the heat transfer coefficient of a building wall described above, two bearing plates are symmetrically and fixedly installed on both side walls of the cavity plate. Guide rods are fixedly installed between the two bearing plates on the same side. Two sliders are symmetrically and fixedly installed on the side wall of the telescopic plate, and the two sliders are respectively movably sleeved on the outer sides of the two guide rods.

[0011] According to the on-site measurement device for the heat transfer coefficient of a building wall described above, a circular groove is opened on the top of the cavity base. An arc-shaped plate is limited and slidably connected inside the circular groove, and the top of the arc-shaped plate is fixedly connected with the bottom of the cavity plate.

[0012] According to the on-site measurement device for the heat transfer coefficient of a building wall described above, a control panel is fixedly installed on the top of the cavity base. The control panel is electrically connected to the electric telescopic rod, the temperature sensor, the first motor, the suction pump, and the second motor.

[0013] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art:

[0014] By setting the telescopic plate with adjustable length in the present invention, the first motor drives the lead screw to rotate. Since the lead screw is threadedly connected to the telescopic plate, the telescopic plate extends outwards inside the cavity plate, and the driving assembly can drive the cavity plate to rotate intermittently. Therefore, the position of the temperature sensor at the other end of the telescopic plate can be adjusted, so that different areas of the wall surface can be measured without repeatedly disassembling and assembling the detection equipment, greatly saving manpower and time and improving the measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural diagram of the present invention;

[0017] Figure 2 It is a cross-sectional view of the cavity base of the present invention;

[0018] Figure 3 This is a schematic structural diagram of the fixing component of the present utility model;

[0019] Figure 4 This is a cross-sectional view of the cavity plate of the present utility model.

[0020] Reference numerals: 1, cavity base; 2, cavity plate; 21, lead screw; 22, telescopic plate; 23, electric telescopic rod; 24, temperature sensor; 25, motor I; 3, suction pump; 31, suction cup; 32, suction pipe; 33, connecting pipe; 4, motor II; 41, driving disc; 42, rotating shaft; 43, grooved pulley; 5, bearing plate; 51, guide rod; 52, slider; 6, circular groove; 61, arc plate; 7, control panel. Specific embodiments

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model will be further described below with reference to the embodiments.

[0023] Embodiment: Refer to Figures 1 to 4, An on-site measurement device for the heat transfer coefficient of a building wall, comprising a cavity base 1 and a wall. The cavity base 1 is fixedly installed on the wall through a fixing component. The top of the cavity base 1 is rotatably connected with a cavity plate 2 through a driving component. The inner bottom wall of the cavity plate 2 is rotatably connected with a lead screw 21. A telescopic plate 22 is sleeved on the outer side of the lead screw 21 in a threaded manner. The outer wall of the telescopic plate 22 is in limit sliding connection with the inner wall of the lead screw 21. The bottom of the other end of the telescopic plate 22 is fixedly installed with an electric telescopic rod 23, and the telescopic end of the electric telescopic rod 23 is fixedly installed with a temperature sensor 24. The bottom of the temperature sensor 24 is in contact with the wall. A motor 1 25 for driving the lead screw 21 is fixedly installed on the outer side wall of the cavity plate 2. When in use, the cavity base 1 is firmly fixed on the wall through the fixing component, and then the motor 1 25 is started to drive the lead screw 21 to rotate. By using the threaded connection between the lead screw 21 and the telescopic plate 22, the telescopic plate 22 extends outwards inside the cavity plate 2. The extending length of the telescopic plate 22 is adjusted appropriately according to actual needs. Then the electric telescopic rod 23 is started, and its telescopic end is used to push the temperature sensor 24 to move towards the wall side and make it closely fit the wall, so as to measure the heat transfer coefficient of the wall. At the same time, the position of the temperature sensor 24 can be adjusted through the driving component, and different areas of the wall can be detected without moving the device, improving the detection efficiency of the device.

[0024] The fixing component includes a suction pump 3 fixedly installed on the side wall of the cavity base 1 and a plurality of suction cups 31 fixedly installed at the bottom of the cavity base 1 in a rectangular array distribution. The suction end of the suction pump 3 is communicated with a suction pipe 32, and the other end of the suction pipe 32 is communicated with a plurality of connecting pipes 33 through a multi-way pipe. The other ends of the plurality of connecting pipes 33 are respectively communicated with each suction cup 31. When in use, the plurality of suction cups 31 at the bottom of the cavity base 1 are in contact with the wall surface, and then the suction pump 3 is controlled to work, so that the cavity base 1 is firmly fixed on the wall, facilitating the subsequent measurement of the wall.

[0025] The driving component includes a motor 2 4 fixedly installed inside the cavity of the cavity base 1. The output end of the motor 2 4 penetrates through the top of the cavity base 1 and is fixedly installed with a driving disk 41. The middle part of the top of the cavity base 1 is rotatably connected with a rotating shaft 42. A grooved wheel 43 is fixedly installed on the outer side of the rotating shaft 42, and the top end of the rotating shaft 42 is fixedly connected with the bottom of the cavity plate 2. The driving disk 41 is meshed with the grooved wheel 43. When it is necessary to adjust the measurement position of the wall, the motor 2 4 is started to drive the driving disk 41 to rotate. By using the meshing connection between the driving disk 41 and the grooved wheel 43 to drive the rotating shaft 42 to rotate, and since the top end of the rotating shaft 42 is fixedly connected with the bottom of the cavity plate 2, the cavity plate 2 can be driven to rotate intermittently, so as to adjust the position of the temperature sensor 24 below the other end, realizing the measurement of different positions of the wall and improving the use effect of the device.

[0026] On both side walls of the cavity plate 2, two bearing plates 5 are symmetrically and fixedly installed. Between the two bearing plates 5 on the same side, guide rods 51 are fixedly installed. On the side wall of the telescopic plate 22, two sliders 52 are symmetrically and fixedly installed, and the two sliders 52 are respectively movably sleeved on the outer sides of the two guide rods 51, playing an auxiliary role and further improving the stability of the movement of the telescopic plate 22.

[0027] On the top of the cavity base 1, a circular groove 6 is opened. Inside the circular groove 6, an arc-shaped plate 61 is connected in a limited sliding manner, and the top of the arc-shaped plate 61 is fixedly connected to the bottom of the cavity plate 2, playing a limiting and supporting role and further improving the stability of the rotation of the cavity plate 2.

[0028] On the top of the cavity base 1, a control panel 7 is fixedly installed. The control panel 7 is electrically connected to the electric telescopic rod 23, the temperature sensor 24, the first motor 25, the suction pump 3, and the second motor 4. By controlling the operation of the above-mentioned devices through the control panel 7, it is more convenient for the staff to operate and improves the measurement efficiency of the device.

[0029] The working principle of the present utility model is as follows: When in use, the staff makes the multiple suction cups 31 at the bottom of the cavity base 1 closely adhere to the wall surface, and then controls the suction pump 3 to work, so that the cavity base 1 is firmly fixed on the wall surface. Then, the first motor 25 is started to drive the lead screw 21 to rotate. By using the threaded connection between the lead screw 21 and the telescopic plate 22, the telescopic plate 22 extends outwards inside the cavity plate 2. The extension length of the telescopic plate 22 is appropriately adjusted according to actual needs. Then, the electric telescopic rod 23 is started, and its telescopic end is used to push the temperature sensor 24 towards the side of the wall and make it closely fit the wall, so as to measure the heat transfer coefficient of the wall. When it is necessary to measure other areas on the wall surface, at this time, the second motor 4 is started to drive the driving disk 41 to rotate. By using the meshing connection between the driving disk 41 and the grooved wheel 43 to drive the rotating shaft 42 to rotate, and since the top end of the rotating shaft 42 is fixedly connected to the bottom of the cavity plate 2, the cavity plate 2 can be driven to rotate intermittently, so as to adjust the position of the temperature sensor 24 and realize the measurement of different areas of the wall without moving the device, improving the detection efficiency of the device.

[0030] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A device for measuring heat transfer coefficient of building wall on site, characterized in that: It comprises a cavity base (1) and a wall, wherein the cavity base (1) is fixedly mounted on the wall via a fixing assembly, and the top of the cavity base (1) is rotatably connected to a cavity plate (2) via a driving assembly; The inner bottom wall of the cavity plate (2) is rotatably connected to a screw rod (21); a telescopic plate (22) is provided on the outer thread sleeve of the screw rod (21); the outer wall of the telescopic plate (22) is limitedly slidably connected to the inner wall of the screw rod (21); an electric telescopic rod (23) is fixedly mounted on the bottom of the other end of the telescopic plate (22); a temperature sensor (24) is fixedly mounted on the telescopic end of the electric telescopic rod (23); the bottom of the temperature sensor (24) is in contact with the wall; and a motor (25) for driving the screw rod (21) is fixedly mounted on the outer wall of the cavity plate (2).

2. The on-site measuring device for heat transfer coefficient of a building wall according to claim 1, characterized in that: The fixed assembly comprises a suction pump (3) fixedly mounted on the side wall of the cavity base (1) and a plurality of suction cups (31) distributed and fixedly mounted in a rectangular array at the bottom of the cavity base (1); the suction end of the suction pump (3) is connected to a suction pipe (32), and the other end of the suction pipe (32) is connected to a plurality of connecting pipes (33) via a multi-way pipe, and the other ends of the plurality of connecting pipes (33) are respectively connected to each suction cup (31).

3. The on-site measuring device for heat transfer coefficient of a building wall according to claim 2, characterized in that: The driving assembly comprises a second motor (4) fixedly mounted inside the cavity of the cavity base (1); the output end of the second motor (4) passes through the top of the cavity base (1) and is fixedly mounted with a driving disk (41); a rotating shaft (42) is rotatably connected to the middle of the top of the cavity base (1); a groove wheel (43) is fixedly mounted on the outer side of the rotating shaft (42); the top end of the rotating shaft (42) is fixedly connected to the bottom of the cavity plate (2); and the driving disk (41) is meshingly connected to the groove wheel (43).

4. The on-site measuring device for heat transfer coefficient of a building wall according to claim 1, characterized in that: Two bearing plates (5) are symmetrically fixedly mounted on both side walls of the cavity plate (2), a guide rod (51) is fixedly mounted between the two bearing plates (5) on the same side, and two sliders (52) are symmetrically fixedly mounted on the side walls of the telescopic plate (22), and the two sliders (52) are movably sleeved on the outer sides of the two guide rods (51) respectively.

5. The on-site measuring device for heat transfer coefficient of a building wall according to claim 1, characterized in that: A circular groove (6) is provided on the top of the cavity base (1), an arc plate (61) is slidably connected inside the circular groove (6), and the top of the arc plate (61) is fixedly connected to the bottom of the cavity plate (2).

6. The on-site measuring device for heat transfer coefficient of a building wall according to claim 3, characterized in that: A control panel (7) is fixedly mounted on the top of the cavity base (1), and the control panel (7) is electrically connected to the electric telescopic rod (23), the temperature sensor (24), the motor 1 (25), the suction pump (3), and the motor 2 (4).

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