CN215728436U - Conductivity tester for testing conductivity of conductive fiber fabric - Google Patents

Abstract

The utility model belongs to the technical field of conductive fabric detection, and particularly relates to a conductivity tester for testing conductive fiber fabric. The tester comprises a closable detection box and a detection table which is arranged in the detection box and can clamp the fabric; the gas drying device is arranged in the detection box and drives gas in the detection box to flow through the moisture absorption area arranged in the gas drying device, so that the humidity of the gas in the detection box is reduced, the lower humidity is kept in the detection box, and the measurement error is reduced. The conductivity tester for testing the conductive fiber fabric provided by the utility model is reasonable in design and convenient to use, can effectively inhibit deviation caused by air humidity, can form reliable electrical contact with the fabric to be tested, and improves the measurement precision and accuracy.

Description

Conductivity tester for testing conductivity of conductive fiber fabric

Technical Field

The utility model belongs to the technical field of conductive fabric detection, and particularly relates to a conductivity tester for testing conductive fiber fabric.

Background

The conductive fiber fabric is a fabric made of conductive fibers or a fabric made of conductive fibers and other fibers in a mixed mode. Compared with the conventional fabric, the conductive fiber fabric has better conductivity, and can be used for manufacturing shielding work clothes, shielding cloth special for shielding rooms, shielding covers of precision instruments, radiation-proof curtains and the like of professionals engaged in high-radiation work such as electronic and electromagnetic.

To know whether the conductivity of the conductive fiber fabric meets the design requirements, the resistance of the conductive fiber fabric needs to be tested. A sample of conductive fibrous material is typically held between two spaced apart electrodes and the corresponding resistance is calculated from the voltage and current measured between the two electrodes. However, in the testing process, the humidity of the environment brings certain errors to the testing result, for example, in rainy weather, the humidity of the environment is large, so that the measured resistance is small, and the conductivity of the conductive fiber fabric cannot be truly reflected.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides the conductivity tester for testing the conductive fiber fabric, which can inhibit the influence of a high-humidity environment on the detection result.

In order to achieve the purpose, the tester provided by the utility model comprises a closable detection box and a detection table which is arranged in the detection box and can clamp the fabric; the gas drying device is arranged in the detection box and drives gas in the detection box to flow through the moisture absorption area arranged in the gas drying device, so that the humidity of the gas in the detection box is reduced, the lower humidity is kept in the detection box, and the measurement error is reduced.

Further, the gas drying device comprises a cylindrical shell, a fan arranged in the shell and a drying agent box arranged in the shell; the fan drives the gas in the detection box to flow in from one end of the shell, flow through the drying agent box and finally flow out from the other end of the shell.

Furthermore, the gas drying device also comprises a first mesh enclosure, a first cotton filtering layer, a second cotton filtering layer and a second mesh enclosure; in the shell, a first mesh enclosure, a first cotton filtering layer, a fan, a drying agent box, a second cotton filtering layer and a second mesh enclosure are sequentially arranged along the air flow direction. The first filter cotton layer is particle filter cotton, particles in gas entering the shell are filtered, other parts in the shell are prevented from being polluted, and meanwhile, the gas in the detection box is purified; the second filter cotton layer is also particle filter cotton and mainly used for preventing a small amount of drying agent fragments falling off from the drying agent box from being blown into the detection box; first screen panel and second screen panel are all for the inner structure of protective gas drying device, avoid the mistake to touch.

Furthermore, the drying agent box is detachably arranged in the shell, a plurality of small holes are formed in the two end faces of the drying agent box along the airflow direction for air to pass through, drying agent is contained in the drying agent box, granular drying agent such as silica gel granules is preferably used, and after a large amount of moisture is absorbed by the drying agent, the drying agent box can be taken out and placed in the drying oven for regeneration.

Furthermore, the humidity meter capable of displaying humidity is further arranged in the detection box, so that a worker can know the humidity in the detection box in real time, and the humidity meter is preferably arranged at the air inlet end of the air drying device so as to better represent the air in the detection box.

Furthermore, the detection box comprises a box body and a box door which is hinged on the box body and can be opened and closed, a lock catch is connected between the box body and the box door, and an observation window made of transparent materials is further arranged on the box door.

Further, the test table includes a base plate made of an insulating material and a pair of electrode assemblies fixed in parallel on the base plate; the electrode assembly comprises a lower cushion block, a lower electrode plate, an upper cushion block, a pressing block and an elastic pressing device; the lower cushion block is made of elastic materials and fixed on the bottom plate, and the lower electrode plate is fixed on the lower cushion block; the elastic pressing device is fixed on the bottom plate, the pressing block is pivoted with the elastic pressing device, the upper cushion block is made of elastic materials and fixed on the lower end face of the pressing block, and the upper electrode plate is fixed on the lower end face of the upper cushion block; the elastic pressing device can press the pressing block downwards to press the upper electrode plate on the lower electrode plate. When the measuring device is used, the fabric to be measured is leveled and clamped between the pair of electrode assemblies, and the pair of electrode assemblies are electrically connected to a measuring circuit for measurement. Specifically, the lower electrode plate and the upper electrode plate of one set of electrode assembly jointly form a connecting end to be connected into the measuring circuit, and the lower electrode plate and the upper electrode plate of the other set of electrode assembly jointly form a connecting end to be connected into the measuring circuit. Because the briquetting pushes down the pivot with elasticity, can make both ends pressure tend to equal spontaneously when going up the electrode piece and pushing down, on this basis, go up the elastic action of cushion and lower cushion and further make and go up the electrode piece and all equal with lower electrode piece everywhere pressure, make the electrically conductive surface fabric that awaits measuring of centre gripping between last electrode piece and lower electrode piece and go up the electrode piece and form reliable electricity with lower electrode piece and be connected to reduce measuring error.

Furthermore, the elastic pressing device comprises an elastic sheet, a connecting block, a bolt, a pressing nut and an adjusting cushion block; the adjusting cushion block is fixed on the bottom plate; the spring plate is integrally in a transverse U shape, the lower part of the spring plate is fixed on the adjusting cushion block, the upper part of the spring plate is longer than the lower part of the spring plate, and the tail end of the upper part of the spring plate is fixedly provided with a connecting block which is pivoted with the pressing block; the bolt is inverted T-shaped, the lower end of the bolt is pivoted to the lower portion of the elastic sheet, and the upper end of the bolt penetrates through the upper portion of the elastic sheet and is in threaded fit connection with the pressing nut. When the pressing nut is screwed to move downwards along the bolt to apply pressure to the elastic sheet, the acting force of the elastic sheet is transmitted to the upper electrode plate to enable the upper electrode plate to be pressed downwards. When the nut needs to be loosened, the pressing nut is reversely screwed.

Furthermore, lead wires which are led out are arranged on the lower electrode plate and the upper electrode plate and are electrically connected with the resistance meter.

Furthermore, a support for making the bottom plate overhead is arranged below the bottom plate, and a drying agent bag is arranged on the lower side of the bottom plate.

Has the advantages that: compared with the prior art, the conductivity tester for testing the conductive fiber fabric provided by the utility model has the advantages of reasonable design and convenience in use, can effectively inhibit deviation caused by air humidity, can form reliable electrical contact with the fabric to be tested, and improves the measurement precision and accuracy.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal structure of the gas drying device.

Fig. 3 is a partially enlarged view of fig. 1.

Fig. 4 is a left side view of the test stand.

Fig. 5 is a left side view of the resilient hold-down device.

Fig. 6 is a partially enlarged view of fig. 4.

Fig. 7 is a schematic view of the engagement of the bolt and the push-down nut.

Fig. 8 is a top view of the connector block.

In the figure, the gas drying device 5, the housing 51, the fan 52, the drying agent box 53, the first mesh enclosure 54, the first filter cotton layer 55, the second filter cotton layer 56, the second mesh enclosure 57, the hygrometer 6, the box 3, the box door 4, the bottom plate 1, the electrode assembly 2, the lower pad 21, the lower electrode sheet 22, the upper electrode sheet 23, the upper pad 24, the pressing block 25, the elastic pressing device 26, the elastic sheet 261, the connecting block 262, the bolt 263, the pressing nut 264, the adjusting pad 265, the bracket 7, and the desiccant bag 8.

Detailed Description

The utility model is further illustrated by the following specific examples, which are illustrative and intended to illustrate the problem and explain the utility model, but not limiting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

A conductivity tester for testing conductive fiber fabric is shown in figures 1 to 8 and comprises a closable detection box and a detection table which is arranged in the detection box and can clamp the fabric; the gas drying device 5 is further arranged in the detection box, and the gas drying device 5 drives the gas in the detection box to flow through a moisture absorption area arranged in the gas drying device 5, so that the humidity of the gas in the detection box is reduced.

In this example, the gas drying device 5 includes a cylindrical housing 51, a fan 52 provided in the housing 51, and a desiccant box 53 provided in the housing 51; the fan 52 drives the gas in the detection box to flow in from one end of the shell 51, flow through the drying agent box 53 and finally flow out from the other end of the shell 51; the air drying device 5 further comprises a first mesh enclosure 54, a first cotton filtering layer 55, a second cotton filtering layer 56 and a second mesh enclosure 57; in the housing 51, a first mesh 54, a first filter cotton layer 55, a fan 52, a drying agent box 53, a second filter cotton layer 56, and a second mesh 57 are sequentially arranged along the airflow direction.

In this embodiment, the housing 51 is formed by two sections of circular pipes which are connected in a threaded fit manner, the desiccant box 53 is cylindrical, and is arranged in the housing 51 in an interference fit manner, so that the desiccant box 53 can be taken out for replacement or regeneration after the desiccant fails to absorb moisture.

In this embodiment, a hygrometer 6 capable of displaying humidity is further arranged in the detection box, and the hygrometer 6 is arranged at the air inlet end of the gas drying device 5.

In this embodiment, the detection case includes box 3 and articulates chamber door 4 on box 3 and can open and close, is connected with the hasp between box 3 and the chamber door 4, still is equipped with the transparent observation window by the glass material on the chamber door 4, sees through the observation window and can observe the situation of box 3 and the registration of hygrometer 6.

In this embodiment, the test table comprises a base plate 1 made of an insulating ceramic material and a pair of electrode assemblies 2 fixed in parallel on the base plate 1; the electrode assembly 2 comprises a lower cushion block 21, a lower electrode plate 22, an upper electrode plate 23, an upper cushion block 24, a pressing block 25 and an elastic pressing device 26; the lower cushion block 21 is made of elastic rubber materials and is glued and fixed on the bottom plate 1, and the lower electrode plate 22 is glued and fixed on the lower cushion block 21; the elastic pressing device 26 is fixed on the bottom plate 1, the pressing block 25 is pivoted with the elastic pressing device 26, the upper cushion block 24 is made of elastic rubber materials and is glued and fixed on the lower end face of the pressing block 25, and the upper electrode plate 23 is glued and fixed on the lower end face of the upper cushion block 24; the elastic pressing device 26 can press the pressing block 25 downwards to press the upper electrode plate 23 on the lower electrode plate 22.

In this embodiment, the elastic pressing device 26 includes an elastic sheet 261, a connecting block 262, a bolt 263, a pressing nut 264 and an adjusting pad 265; the adjusting cushion block 265 is fixed on the bottom plate 1; the whole elastic sheet 261 is in a transverse U shape, the lower part of the elastic sheet 261 is fixed on the adjusting cushion block 265, the upper part of the elastic sheet 261 is longer than the lower part, the tail end of the upper part of the elastic sheet 261 is fixed with a connecting block 262, and the connecting block 262 is pivoted with the pressing block 25; the bolt 263 is in an inverted T shape, the lower end of which is pivoted to the lower portion of the elastic sheet 261, and the upper end of which passes through the upper portion of the elastic sheet 261 and is in threaded fit connection with the lower pressing nut 264.

In this embodiment, the lower electrode plate 22 and the upper electrode plate 23 are both provided with lead wires for electrical connection with the resistance meter. Specifically, the lower electrode plate 22 and the upper electrode plate 23 of one set of electrode assembly are connected to one terminal of the resistance meter, and the lower electrode plate 22 and the upper electrode plate 23 of the other set of electrode assembly are connected to the other terminal of the resistance meter, so that a measurement loop is formed.

In this embodiment, a support 7 for making the bottom plate 1 overhead is further arranged below the bottom plate 1, a plurality of fastening tapes are further arranged on the lower side of the bottom plate 1, and a drying agent bag 8 is bound by the fastening tapes.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims (10)

1. The utility model provides a test conductive property tester of conductive fiber surface fabric which characterized in that: comprises a closable detection box and a detection table which is arranged in the detection box and can clamp the fabric; the gas drying device (5) is further arranged in the detection box, and the gas drying device (5) drives gas in the detection box to flow through a moisture absorption area arranged in the gas drying device (5), so that the humidity of the gas in the detection box is reduced.

2. The test meter of claim 1, wherein: the gas drying device (5) comprises a cylindrical shell (51), a fan (52) arranged in the shell (51) and a drying agent box (53) arranged in the shell (51); the fan (52) drives the gas in the detection box to flow in from one end of the shell (51), flow through the drying agent box (53) and finally flow out from the other end of the shell (51).

3. The test meter of claim 2, wherein: the gas drying device (5) further comprises a first mesh enclosure (54), a first cotton filtering layer (55), a second cotton filtering layer (56) and a second mesh enclosure (57); in the shell (51), the first mesh enclosure (54), the first cotton filtering layer (55), the fan (52), the drying agent box (53), the second cotton filtering layer (56) and the second mesh enclosure (57) are sequentially arranged along the airflow direction.

4. The meter of claim 3, wherein: the drying agent box (53) is detachably arranged in the housing (51).

5. The meter of claim 3, wherein: still be equipped with hygrometer (6) that can show humidity in the detection case, hygrometer (6) set up the inlet end of gas drying device (5).

6. The test meter of claim 1, wherein: the detection box comprises a box body (3) and a box door (4) which is hinged to the box body (3) and can be opened and closed, a lock catch is connected between the box body (3) and the box door (4), and an observation window made of transparent materials is further arranged on the box door (4).

7. The meter of any one of claims 1 to 6, wherein: the detection table comprises a bottom plate (1) made of insulating materials and a pair of electrode assemblies (2) fixed on the bottom plate (1) in parallel; the electrode assembly (2) comprises a lower cushion block (21), a lower electrode plate (22), an upper electrode plate (23), an upper cushion block (24), a pressing block (25) and an elastic pressing device (26); the lower cushion block (21) is made of an elastic material and is fixed on the bottom plate (1), and the lower electrode plate (22) is fixed on the lower cushion block (21); the elastic pressing device (26) is fixed on the bottom plate (1), the pressing block (25) is pivoted with the elastic pressing device (26), the upper cushion block (24) is made of an elastic material and is fixed on the lower end face of the pressing block (25), and the upper electrode plate (23) is fixed on the lower end face of the upper cushion block (24); the elastic pressing device (26) can press the pressing block (25) downwards to press the upper electrode plate (23) on the lower electrode plate (22).

8. The meter of claim 7, wherein: the elastic pressing device (26) comprises an elastic sheet (261), a connecting block (262), a bolt (263), a pressing nut (264) and an adjusting cushion block (265); the adjusting cushion block (265) is fixed on the bottom plate (1); the elastic sheet (261) is in a transverse U shape as a whole, the lower part of the elastic sheet (261) is fixed on the adjusting cushion block (265), the upper part of the elastic sheet (261) is longer than the lower part of the elastic sheet, the tail end of the upper part of the elastic sheet (261) is fixed with the connecting block (262), and the connecting block (262) is pivoted with the pressing block (25); the bolt (263) is in an inverted T shape, the lower end of the bolt is pivoted to the lower part of the elastic sheet (261), and the upper end of the bolt penetrates through the upper part of the elastic sheet (261) and is in threaded fit connection with the pressing nut (264).

9. The meter of claim 7, wherein: and lead wires which are led out are arranged on the lower electrode plate (22) and the upper electrode plate (23) and are electrically connected with the resistance meter.

10. The meter of claim 7, wherein: the drying machine is characterized in that a support (7) for making the bottom plate (1) overhead is further arranged below the bottom plate (1), and a drying agent bag (8) is further arranged on the lower side of the bottom plate (1).

Images