Winter warm-keeping performance testing device for cold protective clothing

Abstract

The utility model relates to the technical field of testing, in particular to a winter warm keeping performance testing device for cold protective clothing, a warm dummy is arranged on a rotary support, an air supply device and the warm dummy are arranged at an interval, the air supply device comprises an air supply plate, nozzles, an air pipe, a cooler, an air compressor, a pressure gauge and a pressure regulating valve, the nozzles are uniformly distributed on the air supply plate, and the air pipe is arranged on the air supply plate. An air inlet of the air supply plate is connected with an air outlet of the cooler through an air pipe, an air inlet of the cooler is connected with the air compressor, and the pressure gauge and the pressure regulating valve are arranged between the cooler and the air supply plate. According to the utility model, the defects in the prior art are overcome, the wind power uniformity is ensured by arranging the wind supply device, the wind speed facing each point of the thermal dummy is consistent, the flow speed of gas in each nozzle on the wind supply plate is the same under the action of air pressure in a loop, the condition that the wind speed of each point is inconsistent after the gas is sprayed by one nozzle is avoided, and the working efficiency of the thermal dummy is improved. The detection environment of each point of the thermal manikin is consistent, and the detection precision of the testing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, in particular to a device for testing the winter warmth retention performance of cold-proof clothing. Background Art

[0002] As people's material living standards and health requirements continue to improve, higher requirements are placed on the comfort of clothing and its materials. Cold-proof clothing under low temperature conditions is one of them, so it is particularly important to improve the warmth retention of cold-proof clothing. Existing clothing warmth retention tests mainly focus on fabric testing, and the technology of testing fabrics using thermal resistance testing equipment is quite mature. During the test, the thermal resistance of a set of clothing is generally estimated based on the thermal resistance of the fabric, and then its warmth retention is predicted. However, after the fabric is sewn into clothing, the thermal resistance of the entire garment will be affected by the style, splicing method, etc., and the accuracy of the result of predicting warmth retention based solely on the thermal resistance of the fabric is not very high. Therefore, it is necessary to design a device specifically for testing the warmth retention of cold-proof clothing to test the warmth retention of a set of clothing.

[0003] Chinese patent: CN216386339U discloses a winter warmth test system for cold-proof clothing, including an environmental laboratory for providing a preset temperature environment; a warm-body manikin wearing cold-proof clothing to be tested, placed in the environmental laboratory, and provided with a skin temperature sensor; and an air supply device, placed in the environmental laboratory, with the air outlet of the air supply device facing the warm-body manikin. However, the air supply device simulates natural wind for testing through a fan and a uniform distribution plate, and the overall structure occupies a large space, and the wind speed adjustment is difficult. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a device for testing the thermal insulation performance of cold-proof clothing in winter, which overcomes the deficiencies in the prior art and aims to solve the problem that the air supply device of the prior art device for testing the thermal insulation performance of cold-proof clothing in winter occupies a large space and is difficult to adjust the wind speed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for testing the winter thermal insulation performance of cold-proof clothing, comprising an environmental laboratory, a heated manikin, an air supply device and a rotating support, wherein the heated manikin, the air supply device and the rotating support are arranged in the environmental laboratory, the heated manikin is arranged on the rotating support, the air supply device and the heated manikin are spaced apart, the air supply device comprises: an air supply plate, a nozzle, an air pipe, a cooler, an air compressor, a pressure gauge and a pressure regulating valve, the nozzles are evenly installed on the air supply plate, the air inlet of the air supply plate is connected to the air outlet of the cooler via the air pipe, the air inlet of the cooler is connected to the air compressor, the pressure gauge and the pressure regulating valve are arranged between the cooler and the air supply plate.

[0006] During the test, the heated manikin is turned on, and the cold-proof clothing to be tested is put on. The environmental laboratory is closed, and the temperature and humidity in the environmental laboratory are adjusted to the set values. The air supply device is turned on, and compressed air flows out from the air compressor, enters the cooler through the air pipe for cooling, and the air flow reaching the set temperature flows out through the air pipe into the air supply plate. The gas in the air supply plate is ejected into a uniform airflow through the nozzle, and the airflow blows toward the heated manikin. The pressure gauge detects the air pressure. If the air pressure does not reach the set pressure, the pressure regulating valve is controlled to adjust the circuit air pressure to achieve a change in the speed of the gas ejected from the nozzle. The rotating support is used to adjust the angle between the heated manikin and the wind direction to achieve multi-angle detection.

[0007] As a preferred technical solution of the utility model, the air supply plate includes: a bracket, an air plate and an air inlet, the air plate is a hollow plate, a plurality of connection holes are evenly arranged on one side of the air plate, the air inlet is arranged on the other side of the air plate, the bracket is connected to the air inlet surface of the air plate, and the other end of the bracket is fixed to the ground.

[0008] As a preferred technical solution of the utility model, the nozzle includes: a nozzle, a cylinder body and a mounting portion, the nozzle is arranged on an end surface of one end of the cylinder body, and the mounting portion is arranged on the other end of the cylinder body.

[0009] As a preferred technical solution of the present utility model, the mounting portion is threadedly connected to the connecting hole.

[0010] As a preferred technical solution of the utility model, the rotating support includes a rotating table, a rotating shaft, a transmission device and a motor, the bottom of the rotating table is connected to the rotating shaft, the rotating shaft is connected to the transmission device, and the transmission device is connected to the motor.

[0011] As a preferred technical solution of the present utility model, the rotating platform is square or circular, and the rotating platform is provided with a fixed installation position for installing the warm body manikin.

[0012] As a preferred technical solution of the utility model, the environmental laboratory also includes: a temperature regulating device, a humidity regulating device and a simulated sun. The regulating ports of the temperature regulating device and the humidity regulating device are evenly distributed in the environmental laboratory. The simulated sun is set on the top of the environmental laboratory to simulate sunlight.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model ensures uniform wind force by arranging an air supply device, and the wind speed faced by each point of the heated manikin is consistent. Because of the effect of the air pressure in the circuit, the nozzles at each point on the air supply plate have the same flow speed of gas in each nozzle, thereby avoiding the situation where the wind speeds at each point are inconsistent after one nozzle sprays gas, which helps to make the detection environment of each point on the heated manikin consistent and improve the detection accuracy of the test device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the air supply device of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the rotating device of the utility model;

[0019] Figure 5 This is a schematic diagram of the nozzle structure of the utility model;

[0020] In the figure: 1. Environmental laboratory; 101. Temperature regulating device; 102. Humidity regulating device; 103. Simulated sun; 2. Warm manikin; 3. Air supply device; 4. Rotating support; 401. Rotating table; 402. Rotating shaft; 403. Transmission device; 404. Motor; 5. Air supply plate; 501. Bracket; 502. Air plate; 503. Air inlet; 504. Connecting hole; 6. Nozzle; 601. Nozzle; 602. Cylinder body; 603. Mounting part; 7. Air pipe; 8. Cooler; 9. Air compressor; 10. Pressure gauge; 11. Pressure regulating valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5The utility model provides the following technical solutions: a winter thermal insulation performance test device for cold-proof clothing, comprising: an environmental laboratory 1, a heated manikin 2, an air supply device 3 and a rotating support 4, the heated manikin 2, the air supply device 3 and the rotating support 4 are arranged in the environmental laboratory 1, the heated manikin 2 is arranged on the rotating support 4, the air supply device 3 and the heated manikin 2 are placed at intervals, the air supply device 3 comprises: an air supply plate 5, a nozzle 6, an air pipe 7, a cooler 8, an air compressor 9, a pressure gauge 10 and a pressure regulating valve 11, the nozzle 6 is evenly installed on the air supply plate 5, the air inlet of the air supply plate 5 is connected to the air outlet of the cooler 8 via the air pipe 7, the air inlet of the cooler 8 is connected to the air compressor 9, the pressure gauge 10 and the pressure regulating valve 11 are arranged between the cooler 8 and the air supply plate 5.

[0023] During the test, the heated manikin 2 is turned on, and the cold-proof clothing to be tested is put on. The environmental laboratory 1 is closed, and the temperature and humidity in the environmental laboratory 1 are adjusted to the set values. The air supply device 3 is turned on, and the compressed air flows out from the air compressor 9, enters the cooler 8 through the air pipe 7 for cooling, and the air flow reaching the set temperature flows out through the air pipe 7 into the air supply plate 5. The gas in the air supply plate 5 is sprayed out as a uniform air flow through the nozzle 6, and the air flow blows toward the heated manikin 2. The pressure gauge 10 detects the air pressure. If the air pressure does not reach the set pressure, the pressure regulating valve 11 is controlled to adjust the circuit air pressure to achieve a change in the speed of the gas sprayed from the nozzle 6. The rotating support 4 is used to adjust the angle between the heated manikin 2 and the wind direction to achieve multi-angle detection.

[0024] Arranging the air supply device 3 in this way ensures uniform wind force, and the wind speed faced by each point of the thermal manikin 2 is consistent. Because of the action of the air pressure in the circuit, the nozzles 6 at each point on the air supply plate 5 have the same flow rate of gas in each nozzle 6, avoiding the situation where the wind speed at each point is inconsistent after one nozzle 6 sprays gas, which helps to make the detection environment of each point on the thermal manikin 2 consistent and improve the detection accuracy of the test device.

[0025] Specifically, the air supply plate 5 includes: a bracket 501, an air plate 502 and an air inlet 503. The air plate 502 is a hollow plate. A plurality of connection holes 504 are evenly arranged on one side of the air plate 502. The air inlet 503 is arranged on the other side of the air plate 502. The bracket 501 is connected to the air inlet 503 of the air plate 502. The other end of the bracket 501 is fixed on the ground. The air supply plate 5 is arranged in this way so that the gas in the air pressure circuit fills the internal space of the air supply plate 5. The gas pressure at each connection hole 504 is the same, which avoids the different pressure changes caused by the natural flow of the gas, resulting in different gas flow rates, and improves the detection accuracy.

[0026] Specifically, the nozzle 6 includes: a nozzle 601, a cylinder 602 and a mounting portion 603. The nozzle 601 is arranged on an end surface of the cylinder 602, and the mounting portion 603 is arranged on the other end of the cylinder 602. Such a configuration of the nozzle 6 is simple in structure, and the parts are easy to process, which is conducive to reducing the cost of parts processing and improving the reliability and stability of the device.

[0027] Specifically, the mounting portion 603 is threadedly connected to the connecting hole 504. In this way, the connection between the nozzle 6 and the air supply plate 5 is reliable and airtight, which helps to improve the reliability and stability of the device and is easy to install and disassemble.

[0028] Specifically, the rotating support 4 includes a rotating platform 401, a rotating shaft 402, a transmission device 403 and a motor 404. The bottom of the rotating platform 401 is connected to the rotating shaft 402, the rotating shaft 402 is connected to the transmission device 403, and the transmission device 403 is connected to the motor 404. The rotating support 4 is simple in structure and has fewer parts, which helps to reduce processing and installation costs and improve the stability and reliability of the device.

[0029] Specifically, the rotating platform 401 is square or circular, and is provided with a fixed installation position for installing the thermal manikin 2. The rotating platform 401 is arranged in this way so that the fixed position of the thermal manikin 2 is unified during the experiment, reducing experimental variables and helping to improve the test accuracy.

[0030] Specifically, the environmental laboratory 1 further includes: a temperature regulating device 101, a humidity regulating device 102 and a simulated sun 103. The regulating ports of the temperature regulating device 101 and the humidity regulating device 102 are evenly distributed in the environmental laboratory 1. The simulated sun 103 is set on the top of the environmental laboratory 1 to simulate sunlight. The temperature regulating device 101 and the humidity regulating device 102 are set in this way to ensure that the temperature and humidity at each point in the environmental laboratory 1 are constant, and the temperature and humidity of the heated manikin 2 are not consistent in all directions. The simulated sun 103 is set on the top of the environmental laboratory 1 to more accurately simulate the natural conditions of the winter external environment and improve the detection accuracy of the device.

[0031] Working principle: During the test, the heated manikin 2 is turned on, and the cold-proof clothing to be tested is put on. The environmental laboratory 1 is closed, and the temperature and humidity in the environmental laboratory 1 are adjusted to the set values. The air supply device 3 is turned on, and the compressed air flows out from the air compressor 9, enters the cooler 8 through the air pipe 7 for cooling, and the air flow reaching the set temperature flows out through the air pipe 7 into the air supply plate 5. The gas in the air supply plate 5 is ejected into a uniform air flow through the nozzle 6, and the air flow blows toward the heated manikin 2. The pressure gauge 10 detects the air pressure. If the air pressure does not reach the set pressure, the pressure regulating valve 11 is controlled to adjust the circuit air pressure to achieve a change in the speed of the gas ejected from the nozzle 6. The rotating support 4 is used to adjust the angle between the heated manikin 2 and the wind direction to achieve multi-angle detection.

[0032] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Winter warm-keeping performance test device for cold-proof clothing, characterized in that: include: An environmental laboratory (1), a heated manikin (2), an air supply device (3) and a rotating support (4); the heated manikin (2), the air supply device (3) and the rotating support (4) are arranged in the environmental laboratory (1); the heated manikin (2) is arranged on the rotating support (4); the air supply device (3) and the heated manikin (2) are spaced apart; the air supply device (3) comprises an air supply plate (5), a nozzle (6), an air pipe (7), a cooler (8), an air compressor (9), a pressure gauge (10) and a pressure regulating valve (11); the nozzle (6) is evenly installed on the air supply plate (5); the air inlet of the air supply plate (5) is connected to the air outlet of the cooler (8) via the air pipe (7); the air inlet of the cooler (8) is connected to the air compressor (9); the pressure gauge (10) and the pressure regulating valve (11) are arranged between the cooler (8) and the air supply plate (5).

2. The winter warmth retention performance testing device of cold-proof clothing according to claim 1, characterized in that: The air supply plate (5) comprises: a bracket (501), an air plate (502) and an air inlet (503); the air plate (502) is a hollow plate; a plurality of connection holes (504) are evenly arranged on one side of the air plate (502); the air inlet (503) is arranged on the other side of the air plate (502); the bracket (501) is connected to the air inlet (503) surface of the air plate (502); and the other end of the bracket (501) is fixed on the ground.

3. The winter warmth retention performance testing device of cold-proof clothing according to claim 2, characterized in that: The nozzle (6) comprises: a nozzle (601), a cylinder body (602) and a mounting portion (603); the nozzle (601) is arranged on an end surface of one end of the cylinder body (602), and the mounting portion (603) is arranged on the other end of the cylinder body (602).

4. The winter warmth performance testing device of cold-proof clothing according to claim 3, characterized in that: The mounting portion (603) is threadedly connected to the connecting hole (504).

5. The winter warmth retention performance testing device of cold-proof clothing according to claim 4, characterized in that: The rotating support (4) comprises a rotating platform (401), a rotating shaft (402), a transmission device (403) and a motor (404); the bottom of the rotating platform (401) is connected to the rotating shaft (402); the rotating shaft (402) is connected to the transmission device (403); and the transmission device (403) is connected to the motor (404).

6. The winter warmth retention performance testing device of cold-proof clothing according to claim 5, characterized in that: The rotating platform (401) is square or circular, and is provided with a fixed installation position for installing the warm body manikin (2).

7. The winter warmth performance testing device of cold-proof clothing according to claim 1, characterized in that: The environmental laboratory (1) further comprises: a temperature regulating device (101), a humidity regulating device (102) and a simulated sun (103); the regulating ports of the temperature regulating device (101) and the humidity regulating device (102) are evenly distributed in the environmental laboratory (1); and the simulated sun (103) is arranged on the top of the environmental laboratory (1) for simulating sunlight.

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