CN111927280A

CN111927280A - Screen mesh and screen window applying same

Info

Publication number: CN111927280A
Application number: CN202010901180.6A
Authority: CN
Inventors: 吕汉明
Original assignee: Tianjin Polytechnic University
Current assignee: Tianjin Polytechnic University
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2020-11-13

Abstract

The invention relates to a screen damage detection technology and a screen anti-theft detection technology, in particular to a screen and a screen using the screen, wherein the screen is formed by interweaving a conductive linear material and a non-conductive linear material, the conductive linear material is in the same direction, the conductive linear material in the screen can form a conductive path which is connected in series end to end, when the screen at the position of the conductive linear material in the screen is damaged, the conductive linear material is disconnected, so that the conductive path formed in series connection is disconnected, and the screen adopts the screen and comprises a screen frame, a screen, a conductive connecting piece and a leading-out wire. Use except can satisfying the mosquito-proof worm demand commonly used of gauze, can also play sensitive element's effect for whether destroyed detection of gauze itself, the screen window of using this gauze can not only realize the detection that the screen window destroyed, and the principle is simple, and the testing result is reliable.

Description

Screen mesh and screen window applying same

Technical Field

Background

The gauze is widely used for mosquito prevention and insect prevention in homes, offices, hotels and the like, double-layer or three-layer glass is increasingly adopted for building windows along with improvement of living standard of people, and guard rails are not allowed to be installed on windows of residential buildings in a plurality of communities, so that the anti-theft requirement of the gauze is met. The existing anti-theft screen window is generally divided into three types; the first is to use the material with higher intensity to make the screen window, such as the diamond mesh with holes made of stainless steel wire or stainless steel plate, the diamond mesh made of stainless steel wire can be cut off with scissors relatively easily, even if the diamond mesh made of stainless steel plate with holes is cut off with iron sheet scissors; the second is to improve the structure of the traditional window, so that the window is not easy to open, for example, the window can be opened in an inward-opening mode, and a certain structural component is arranged on a common sliding door window, so that the door window can be locked at a certain position to achieve the anti-theft purpose, and even the anti-theft measures of the structures can be broken through by simple technical means; the third is to install an infrared or photoelectric alarm on the window frame, which may cause an undesirable false alarm due to the approach of an animal.

In view of the above problems, the invention discloses a screen and a screen window using the same, the screen can play the roles of preventing mosquitoes and other insects of a general screen and detecting a sensitive element for detecting whether the screen is damaged, the screen window uses the screen, whether the screen is damaged can be judged by detecting the resistance parameter of the screen, false detection caused by the approach of animals (small animals such as birds and cats) can be avoided, the technical means is not easy to remove protection, the structure is simple, the operation is reliable, the cost is low, and a low-cost interface can be conveniently realized with an electronic circuit. The window is arranged outside a window with an anti-theft function, and can play a role of adding a layer of detection and alarm.

Disclosure of Invention

To overcome the defects in the prior art, the invention provides a screen and a screen window using the screen, and the solution is as follows:

the gauze is characterized in that the gauze is formed by interweaving conductive linear materials and non-conductive linear materials together, the conductive linear materials are in the same direction, for a piece of gauze with the periphery cut, different conductive linear materials are insulated from each other, and the conductive linear materials in the gauze can form a conductive path in series end to end under the external connection.

The distance between different pieces of conductive thread-like material is less than or equal to the dimension of the object in the shorter direction which is not allowed to pass through when the gauze is damaged.

The amount of conductive thread-like material in the screen is less than or equal to the amount of non-conductive thread-like material.

The fact that the gauze is in the same direction means that only the warp direction or the weft direction is made of the conductive linear material for the gauze interwoven with the warp direction and the weft direction.

When the gauze is applied, the conductive materials in the gauze are connected in series end to form a conductive path, when the gauze at the position of the conductive linear material in the gauze is damaged, the conductive linear material is disconnected, the conductive path formed by the series connection is disconnected, whether the gauze is damaged to the extent that the conductive linear material is disconnected or not can be judged according to whether the conductive path formed by the series connection of the conductive linear material is disconnected or not, and the conductive linear material in the gauze is used as a sensitive element for detecting whether the gauze is damaged or not.

The screen window is characterized in that the screen mesh is adopted and comprises a screen window frame, the screen mesh, a conductive connecting piece and outgoing lines, wherein the screen window frame is a frame-shaped structural member, the conductive connecting piece is used for connecting conductive linear materials in the screen mesh in series end to end, the outgoing lines are two conductors led out from two ends of the conductive linear materials which are connected in series, and are used for connecting a conductive path which is connected in series to a detection controller.

When the screen window is applied, the screen window frame is arranged on the window, and the screen window frame compresses the edge of the screen mesh and the conductive connecting piece.

The two outgoing lines are connected to a detection controller or an anti-theft system directly or through conductive paths of other gauzes, the detection controller can detect whether the conductive paths of the conductive linear materials connected in series are open or not, when the gauzes are damaged and the conductive linear materials in the gauzes are disconnected, the detection controller detects that the conductive linear materials are disconnected, sound, light and/or communication alarm information can be sent out, and even a high-voltage electric shock is sent out at the disconnected position, so that the anti-theft effect is achieved.

Drawings

Fig. 1 is a schematic view of an embodiment 1 of a screen according to the present invention.

Fig. 2 is a schematic view 1 of an embodiment 2 of a screen of the present invention.

Fig. 3 is a schematic view 2 of an embodiment 2 of a screen according to the present invention.

Fig. 4 is a schematic view 1 of an embodiment 3 of a screen according to the present invention.

Fig. 5 is a schematic view 2 of an embodiment 3 of a screen of the present invention.

Fig. 6 is a schematic view 3 of an embodiment 3 of a screen according to the present invention.

Fig. 7 is a schematic view 4 of an embodiment 3 of a screen according to the present invention.

In the figure: 1. weft 10, conductive connecting member 11, leader 12, conductive weft 13, non-conductive weft 9, warp

Detailed Description

The following description is given, with reference to the accompanying drawings, of several specific embodiments of a screen and a screen window using the same, which are merely illustrative of the present invention and are not to be construed as limiting the claims of the present invention, and nothing in the present invention is described as applicable to the prior art.

Example 1 of a screen according to the invention (as shown in figure 1):

fig. 1 shows a woven gauze, in which the longitudinal direction is warp yarn 9, the horizontal direction is weft yarn 1, the warp yarn 9 is non-conductive nylon yarn, it is certainly not excluded to use yarn or plied yarn made of non-conductive materials such as polyester fiber, glass fiber and the like as warp yarn, the weft yarn 1 is conductive yarn woven by blending polyester fiber and stainless steel fiber, it is certainly not excluded to use other conductive yarn-like slender materials such as metal wire and the like as weft yarn, the woven by a shuttle loom, two adjacent conductive weft yarns are connected, the connection section is used as a conductive connecting piece 10, a section of conducting wire is connected to two ends of the weft yarn as a leading-out wire 11, or a longer conducting wire is led out as the leading-out wire 11.

In a section of gauze, as the weft yarn is a whole weft yarn, a path with a certain resistance is formed between the head and the tail of the weft yarn, if the gauze is damaged (for example, cut, poked and the like), the weft yarn is disconnected, and the head and the tail of the weft yarn are disconnected.

Example 2 of a screen according to the invention (as shown in figures 2 and 3):

the width of the gauze is generally fixed when the gauze is woven on a weaving machine, but the length of the gauze is different in the use process, and the gauze is generally cut and used, so that the gauze in the gauze embodiment 1 of the invention is generally not continuous after being cut in the use process, namely 10 parts of the wefts serving as the conductive connecting parts are cut off, and the structure is the same as that in the structure in the figure 2.

In the embodiment, the warp 9 in the longitudinal direction of the gauze shown in fig. 2 and 3 is non-conductive glass fiber yarn, the weft 1 in the horizontal direction is stainless steel wire, the gauze is woven by a rapier loom, a polymer protective layer is coated on the rear surface of the gauze after the gauze is woven, so that the interweaving points of the warps and the wefts are fixed, a layer of polymer can be coated outside the warp of the glass fiber yarn and the weft of the stainless steel wire before warping and weaving, and the interweaving points can be fixed by hot pressing after weaving. Besides the fixed interweaving point, the coating polymer is also beneficial to protecting the weft yarns made of the conductive materials and prolonging the service life of the weft yarns.

When the gauze is used, the cut gauze is shown in figure 2, stainless steel weft yarns 1 are sequentially connected in series as shown in figure 3 (the tail ends of two weft yarns are twisted together after a polymer protective layer is removed to form a conductive path), one section of the connecting end of each weft yarn 1 is used as a conductive connecting piece 10, so that the weft yarns 1 connected in series in the gauze also become a continuous conductive path, when the gauze is damaged, the series conductive path of the weft yarns 1 is disconnected, and therefore, the two ends of the conductive weft yarns connected in series are connected into a circuit with a resistance detection function through outgoing lines 11, whether the gauze is damaged or not can be detected, and the working principle of the gauze is the same as that in the gauze embodiment 1. After the gauze is coated with the polymer, the weft yarns made of the conductive materials are more difficult to find out from the gauze, the anti-theft level is favorably improved, a gauze destroyer can hardly find out the conductive weft yarns to short the conductive weft yarns, and the detection of disconnection of the conductive weft yarns is hardly influenced by external interference such as rain.

Although the warp yarns are non-conductive and the weft yarns are conductive in both embodiments, the warp yarns may be made of a conductive material and the weft yarns may be made of a non-conductive material, with the same effect.

Example 3 of a screen according to the invention (as shown in figures 4-7):

in the gauze of the embodiments 1 and 2 of the gauze of the present invention, all the weft yarns are conductive material yarns, which not only has high cost, but also has a certain detection hidden trouble, when the gauze is damaged, the conductive path formed by the weft yarns should generate a breaking point, but because all the weft yarns are made of conductive material, the broken weft yarns have a high possibility of generating a new path short point with the adjacent weft yarns, so that the whole path is still conductive, for this reason, only a part of the conductive weft yarns 12 in the weft yarn 1 in the embodiment are stainless steel wires (or made of other conductive material to form a yarn shape), as shown in fig. 4, four conductive weft yarns 12 marked with "12" in the horizontal direction are stainless steel wires, the rest of the weft yarns are non-conductive weft yarns 13, the non-conductive weft yarns 13 are made of non-conductive material, the conductive weft yarns 12 are separated by the non-conductive weft yarns 13, the longitudinal warp threads 9 are all made of non-conductive material.

When the gauze in this embodiment is used, as shown in fig. 5, 4 conductive wefts 12 made of a conductive material are sequentially and electrically connected in series by using a conducting wire as a conductive connecting member 10, two ends of the conductive wefts 12 connected in series are connected to a detection controller for detection control through outgoing lines 11, a control module judges whether the gauze is damaged by detecting whether the conductive wefts 12 connected in series are broken, as long as any conductive weft 12 is broken when the gauze is damaged, a path formed by the 4 conductive wefts is broken, and the control module can send alarm information (such as an alarm sound, a flash light, or a video, a short message, an automatic dialing alarm telephone, and the like) accordingly. When the method is used for detecting whether the gauze is damaged or not, because the non-conductive weft yarn between two adjacent conductive weft yarns 12 is not conductive, false detection basically cannot happen, if the distance between every two adjacent conductive weft yarns is 1mm, every 5mm has one conductive weft yarn, if the damage size of the gauze exceeds 5mm, the conductive weft yarns are easy to break, and if the damage size of the gauze has a larger tolerance degree, the number of the non-conductive weft yarns between two adjacent conductive weft yarns can be increased.

In the previously described embodiments, all the outgoing threads 11 are left at both ends of one side of the screen, but in addition, different series sequences can be used, so that the outgoing threads 11 are left at different positions or even different sides of the screen, as shown in fig. 6, two outgoing threads 11 are left at the ends of the lower two conductive weft yarns on the right side, and two outgoing threads 11 in fig. 7 are left on the left and right sides of the screen. When the screen is used for manufacturing the anti-theft screen window, the positions of the two outgoing lines 11 are easier to find out if the outgoing lines are left at fixed positions, and if a short-circuit line is used for short-circuiting the two outgoing lines 11, even if the screen is damaged, the two outgoing lines 11 cannot be broken, so that the difficulty that the outgoing lines cannot be found when the screen is damaged is effectively improved by irregularly changing the positions of the outgoing lines.

Although the screen is woven in a plain weave mainly, and the screen examples 1 to 3 of the present invention are plain woven screens, it is not excluded that the screen is knitted, for example, by a warp knitting or weft knitting process, wherein the warp knitting or weft knitting screen is woven, and whether the warp knitting or weft knitting is performed, the warp yarns or weft yarns made of the conductive material are distributed at intervals, at least half of the warp yarns or weft yarns are made of the non-conductive material, for example, the conductive warp yarns and the non-conductive warp yarns are distributed at intervals during warp knitting, the ratio of the number of the conductive warp yarns to the total number of the warp yarns is less than or equal to one half, the number of the non-conductive warp yarns can be adjusted according to the detection requirement of the allowable damage size of the screen, and the larger the number of the non-conductive warp yarns is, the larger the minimum size of. When the knitted (warp-knitted or weft-knitted) gauze is used, the conductive warps or the conductive wefts are also connected in series to form a conductive path, and whether the gauze is damaged or not is judged by detecting whether the series conductive path is broken or not.

Although two adjacent conductive weft yarns or conductive warp yarns are connected at two ends by using the conductive weft yarns or the conductive warp yarns, the conductive weft yarns or the conductive warp yarns are not connected in series by using the grooves and the conductive pressing strips or the conductive grooves and the conductive pressing strips arranged on the screen frame, for example, when the screen window is prepared, or even the conductive weft yarns or the conductive warp yarns are connected in series by using the methods of conductive adhesive coating, conductive material 3D printing and the like, and the technologies are suitable for the prior art. Similarly, the lead-out wire is also applicable to the prior arts.

Example 4 of a screen of the present invention:

the gauze of the previous embodiment is a fabric, the gauze of this embodiment is made by 3D printing, and has the same structure and the same conductive material distribution as the gauze described in gauze embodiment 3, except that all gauze tissues are formed by 3D printing, and when printing, the corresponding conductive part is printed by using a conductive material, and the corresponding non-conductive part is printed by using a non-conductive material. The 3D printing is computer-controlled, can print out the gauze that arbitrary size and conducting material distribute to can directly print out complete electrically conductive route, need not tailor and connect electrically conductive connecting piece.

Example 5 of a screen of the present invention:

although the 3D printing screen described in the embodiment 4 of the screen can conveniently print out screens with different sizes and conductive material distributions, the cost is high, in this embodiment, the conductive paths are printed out on the common screen by using the conductive material through the 3D printing process, and thus the conductive paths printed out by 3D printing no longer need to be connected with the conductive connecting member 10.

Embodiment 1 of a screen window of the present invention:

a screen window, which adopts the screen described in embodiment 3 of the screen of the present invention, includes a screen window frame, a screen, a conductive connecting member, and an outgoing line;

the screen window frame is a frame structural member;

the gauze adopts the gauze as shown in figure 5, and conductive weft yarns in the gauze are connected in series by using a conducting wire as a conductive connecting piece 10 to form a conductive path; two leads are led out from two ends of the conductive weft yarns connected in series to serve as leading-out wires 11, and the leading-out wires 11 are used for being connected to a detection controller; the edge part of the periphery of the gauze is clamped and fixed by the gauze window frame;

the screen window frame is installed on a window, the screen window frame compresses the screen and the conductive connecting piece 10, the detection controller is installed on the window, on the screen window frame or in the screen window frame, the two outgoing lines 11 are connected to the detection controller, the detection controller can detect whether the conductive weft yarn path connected in series in the screen is broken, when the screen is damaged and the conductive weft yarn therein is broken, the detection controller detects that the conductive weft yarn path is broken, so that sound, light and (or) communication alarm information can be sent out, and even a high-voltage electric shock is sent out at the broken position, so that the anti-theft effect is achieved.

Not only one detection controller can be adopted for one screen window, but also one detection controller can be adopted for a plurality of screen windows, for example, the outgoing lines 11 of the plurality of screen windows are connected in series, all the conductive paths connected in series are connected into one detection controller, and the detection controller can be arranged at any indoor position as long as the outgoing lines are connected to the detection controller.

Embodiment 2 of a screen window of the present invention:

the screen window frame is provided with a short-circuit piece or a short-circuit groove and other parts or structures capable of enabling two adjacent conductive weft yarns in the screen to be in short circuit, the short-circuit piece or the short-circuit groove and the like are suitable for existing electrician wiring related technologies, such as structures similar to peeling-free quick wiring terminals and the like, so that the screen only needs to be cut according to the required size, and the connection of the adjacent conductive weft yarns in series is completed by means of the structures or the parts on the screen window frame after the screen is placed on the screen window frame. The outgoing line is used as a signal line to be connected into the anti-theft system.

Claims

1. The gauze is characterized in that the gauze is formed by interweaving conductive linear materials and non-conductive linear materials together, the conductive linear materials are in the same direction, and the conductive linear materials in the gauze can form a conductive path with the end connected in series.

2. The screen of claim 1, wherein the number of conductive thread-like materials in the screen is less than or equal to the number of non-conductive thread-like materials.

3. The screen of claim 1, wherein the conductive thread-like material is in the same direction as the warp and weft interlaced conductive thread-like material only in the warp or weft direction.

4. The screen of claim 1, wherein the screen is applied by connecting the conductive materials of the screen end to end in series to form a conductive path, wherein when the screen is broken at the position of the conductive thread-like material in the screen, the conductive thread-like material is broken, and the conductive path formed by the series connection is broken, and whether the screen is broken to the extent that the conductive thread-like material is broken can be determined according to whether the conductive path formed by the series connection of the conductive thread-like materials is broken.

5. A screen window is characterized in that the screen window adopts the screen mesh of claim 1, and comprises a screen window frame, the screen mesh, a conductive connecting piece and outgoing lines, wherein the screen window frame is a frame-shaped structural member, the conductive connecting piece is a conductor which connects the head and the tail of a conductive linear material in the screen mesh in series, and the outgoing lines are two conductors which are led out from two ends of the conductive linear material which is connected in series and are used for connecting a conductive path which is connected in series to a detection controller or an anti-theft system.

6. A screen according to claim 5, wherein the screen is applied by mounting the screen frame to the window, the screen frame pressing against the edges of the screen and the conductive connectors, and connecting the two lead-out wires to the detection controller either directly or via conductive paths of other screens.

7. The screen window of claim 5, wherein the detection controller is capable of detecting whether the conductive paths of the serially connected conductive wires are open, and when the screen is broken and the conductive wires therein are disconnected, the detection controller detects the disconnection of the conductive wires, so as to generate sound, light and/or communication alarm information, and even generate high voltage shock at the disconnected position, thereby preventing burglary.