Pressure-sensitive safety protection device

Abstract

The utility model belongs to the technical field of safety protection equipment, and provides a pressure-sensitive safety protection device which comprises a first protection layer and a second protection layer, the second protection layer is buckled on the first protection layer in a sealing mode, and a sealing detection cavity is formed between the first protection layer and the second protection layer. A pressure-sensitive strip is laid on the side, facing the second protection layer, of the first protection layer, the pressure-sensitive strip is located in the sealed detection cavity and is arranged in an S shape, the pressure-sensitive strip comprises a bent section and a linear section, the linear section is obliquely arranged, and the distance between every two adjacent linear sections is gradually narrowed / widened from one end to the other end; a wire is further arranged between the first protection layer and the second protection layer, one end of the wire extends into the sealed detection cavity and is electrically connected with the pressure-sensitive strip, and the other end of the wire extends out of the first protection layer and the second protection layer. The device is simple in structure, simple and convenient to prepare and operate and low in preparation cost, the laying amount of the pressure-sensitive strips on the protective layer with the same area is larger, the laying of the pressure-sensitive strips is more compact, and the detection sensitivity is high.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection equipment, in particular to a pressure-sensitive safety protection device. Background Technique

[0002] A safety carpet and a safety mat are a kind of pressure-sensitive safety protection device, which can be used for area protection, laid on the ground around equipment to realize warning of dangerous areas and protection of people and equipment. When a person steps on the safety carpet, the safety carpet senses the pressure change, and the equipment is controlled to stop working through a controller to realize the protection of people and equipment or control the alarm device to work to warn people to leave the dangerous area, and can protect the operator from various potential dangers. Its typical application scenarios include: welding robots, rubber and plastic machinery, assembly machinery, material handling, packaging machinery, stamping machinery, pressing machinery, the automotive manufacturing field, and the iron and steel metallurgy industry.

[0003] The Chinese utility model patent with the patent number 202321322460.7 discloses an integrally formed waterproof pressure-sensitive carpet, including a floor mat, a bonding layer is bonded above the floor mat, a sponge strip is bonded above the bonding layer, the sponge strips are arranged in rows parallel to each other, the wire harness is arranged in an S shape along the gap between the sponge strips, a carpet upper cover covers the sponge strip and the wire harness, the end of the wire harness extends out of the floor mat and is externally connected to a power supply, and the floor mat and the carpet upper cover are integrally formed by pressing. For the safety carpet with the above structure, when stepping on the carpet upper cover, the carpet upper cover transmits the stepping pressure to the sponge layer and the conductive rubber strip, and the conductive rubber strip realizes the induction of the pressure change, so as to realize the detection of stepping. However, it is gradually found in the use process that it still has the following defects:

[0004] (1) The structure is complex. During preparation, first press the rubber floor mat, then stick the bonding layer inside the floor mat, then stick the sponge strip and the conductive rubber strip respectively, and finally the four sides of the carpet upper cover and the four sides of the floor mat are integrally formed and pressed together. The preparation process is cumbersome and inconvenient and the production cost is high;

[0005] (2) The laid conductive rubber strips include a bent section and a horizontal section, and the horizontal sections are arranged in parallel, so that the distance between adjacent horizontal sections is large, and then the laying amount of the conductive rubber strips of the same area carpet is small, and the detection sensitivity still needs to be further improved;

[0006] (3) The end of the conductive rubber strip extends out of the floor mat and is externally connected to a power supply, which is not convenient for wiring the power supply line and the conductive rubber strip, and the aesthetics and practicability are poor. Utility Model Content

[0007] In order to overcome the defects of the above-mentioned prior art, in-depth research has been carried out on this, and after a large amount of creative labor, the present utility model has been completed.

[0008] Specifically, the technical problem to be solved by the present utility model is to provide a pressure-sensitive safety protection device to solve the technical problems of the current safety pressure-sensitive carpet, such as complex structure, high manufacturing cost, inconvenient wiring, and the detection sensitivity needs to be further improved.

[0009] To solve the above technical problems, the technical solution of the present utility model is:

[0010] A pressure-sensitive safety protection device includes a first protective layer and a second protective layer. The second protective layer is hermetically buckled on the first protective layer, and there is a sealed detection cavity between the first protective layer and the second protective layer;

[0011] A pressure-sensitive strip is laid on one side of the first protective layer facing the second protective layer. The pressure-sensitive strip is located in the sealed detection cavity and is arranged in an S shape. The pressure-sensitive strip includes a bent section and a straight section. The straight section is inclined, and the distance between adjacent straight sections is gradually narrowed / widened from one end to the other end;

[0012] A wire is also provided between the first protective layer and the second protective layer. One end of the wire extends into the sealed detection cavity and is electrically connected to the pressure-sensitive strip, and the other end of the wire extends outside the first protective layer and the second protective layer.

[0013] As an improved technical solution, a laying groove is opened on one side of the first protective layer facing the second protective layer. The pressure-sensitive strip is located in the laying groove, and the bottom surface of the pressure-sensitive strip is adhesively fixed to the first protective layer, and the top surface of the pressure-sensitive strip is in contact with the second protective layer.

[0014] As an improved technical solution, an annular isolation cushion layer is also provided between the first protective layer and the second protective layer. The isolation cushion layer is located at the circumferential edge of the first protective layer and the second protective layer, and both sides of the isolation cushion layer are hermetically bonded to the first protective layer and the second protective layer respectively. The sealed detection cavity is formed by enclosing the first protective layer, the isolation cushion layer and the second protective layer.

[0015] As an improved technical solution, a wiring avoidance groove is also opened on one side of the first protective layer facing the second protective layer. The wiring avoidance groove is located at the corner position of the first protective layer.

[0016] As an improved technical solution, a lead wire groove corresponding to the wiring avoidance groove is also opened on the first protective layer. One end of the wire extends to the wiring avoidance groove through the lead wire groove.

[0017] As an improved technical solution, the first protective layer is also provided with a wire-holding anti-slip groove, which is located in the middle of the lead groove. A heat shrink tube is sleeved on the wire, which is compatible with the wire-holding anti-slip groove and is located in the wire-holding anti-slip groove.

[0018] As an improved technical solution, the first protective layer, the isolation pad layer and the second protective layer are all provided with missing material parts at their corners, and the missing material parts are arranged to form a bending avoidance opening corresponding to the wire.

[0019] As an improved technical solution, a plurality of anti-slip protrusions are provided on the side of the second protective layer facing away from the first protective layer, and the anti-slip protrusions correspond to the pressure-sensitive strips located therebelow.

[0020] As an improved technical solution, the pressure-sensitive strip includes an elastic rubber tube, and conductive rubber strips are provided on the top and bottom of the inner side of the elastic rubber tube. The conductive rubber strip is arranged along the length direction of the elastic rubber tube, and conductive wires are respectively provided inside the conductive rubber strip along its length direction. There is a gap between the two conductive rubber strips, and a deformation cavity is formed between the conductive rubber strip and the elastic rubber tube.

[0021] As an improved technical solution, the conductive wire includes a bulletproof wire, a copper foil wire and a silver foil wire, and the copper foil wire and the silver foil wire are wound around the bulletproof wire.

[0022] After adopting the above technical solution, the beneficial effects of the utility model are:

[0023] (1) The pressure-sensitive safety protection device has a simple structure. When preparing it, the pressure-sensitive strip is laid on the first protective layer, and then the pressure-sensitive strip and the wire are connected. After that, the isolation cushion layer is sealed and bonded to the first protective layer. Finally, the second protective layer is sealed and buckled. The preparation operation is simple and convenient, and the preparation cost is low. When stepping on the pressure-sensitive safety protection device, the second protective layer transmits the pressure to the pressure-sensitive strip, and the pressure-sensitive strip detects the pressure signal. In addition, due to the laying trajectory of the pressure-sensitive strip, the laying amount of the pressure-sensitive strip on the same area of ​​the protective layer is larger, that is, under the premise of a certain bending degree of the bending section, the laying of the pressure-sensitive strip is more dense and the detection sensitivity is higher. In addition, the wire extends into the sealed detection cavity and is connected to the pressure-sensitive strip, making the wiring operation more convenient, with good waterproof performance and beautiful appearance.

[0024] (2) The laying grooves on the first protective layer provide convenience for the precise positioning and laying of the pressure-sensitive strips, which greatly improves the laying efficiency and accuracy of the pressure-sensitive strips, making the laying of the pressure-sensitive strips neat and efficient.

[0025] (3) An isolation cushion layer provided between the first protective layer and the second protective layer facilitates the sealed connection between the first protective layer and the second protective layer, and at the same time effectively supports the second protective layer, providing a reliable guarantee for the effective detection of trampling.

[0026] (4) The wiring avoidance groove opened in the first protective layer facilitates the wiring connection between the wire and the pressure-sensitive strip; the lead wire groove opened in the first protective layer facilitates the wiring and leading of the wire; the wire clamping and anti-disconnection groove is opened in the first protective layer, a heat shrinkable tube is sleeved on the wire, and the heat shrinkable tube is clamped into the wire clamping and anti-disconnection groove, which can prevent the wire from being pulled out, prevent the connection between the wire and the pressure-sensitive strip from being disconnected due to pulling the wire, and at the same time can improve the waterproof effect and prevent water from entering the device.

[0027] (5) The provided bending avoidance opening facilitates the swinging of the wire in different directions, provides convenience for the wiring of the wire, and has a beautiful appearance.

[0028] (6) The anti-slip protrusions provided on the second protective layer have an anti-slip effect, and the anti-slip protrusions correspond to the pressure-sensitive strip, that is, the pressure-sensitive strip is located directly below the anti-slip protrusions, making the detection sensitivity of the device higher.

[0029] (7) The provided pressure-sensitive strip has a simple structure. When the device is stepped on, under the action of external pressure, the elastic rubber tube will deform, so that the upper and lower conductive rubber strips come into contact, and the detection of external pressure can be realized, with high detection sensitivity; in addition, the conductive wire includes bulletproof wire, copper foil wire and silver foil wire, and the copper foil wire and silver foil wire are wound around the bulletproof wire, greatly improving the conductivity of the conductive wire, and having good toughness and yield resistance, thereby greatly improving the detection sensitivity and service life of the pressure-sensitive strip. Description of the Drawings

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual scale.

[0031] Figure 1 It is a structural schematic diagram of the pressure-sensitive safety protection device of the present invention;

[0032] Figure 2 It is a cross-sectional structural schematic diagram of the pressure-sensitive safety protection device of the present invention;

[0033] Figure 3 It is an exploded structural schematic diagram of the pressure-sensitive safety protection device of the present invention;

[0034] Figure 4Schematic diagram of the installation structure of the isolation cushion layer of the present utility model on the first protective layer;

[0035] Figure 5 Schematic diagram of the laying structure of the pressure - sensitive strip of the present utility model on the first protective layer;

[0036] Figure 6 Schematic diagram of the structure of the first protective layer of the present utility model;

[0037] Figure 7 is Figure 6 Enlarged schematic diagram of part I in

[0038] Figure 8 Schematic diagram of the structure of the pressure - sensitive strip of the present utility model;

[0039] Figure 9 Cross - sectional schematic diagram of the pressure - sensitive strip of the present utility model;

[0040] Reference numerals: 1 - First protective layer; 101 - Laying groove; 102 - Wiring avoidance groove; 103 - Lead wire groove; 104 - Wire clamping anti - detachment groove;

[0041] 2 - Second protective layer; 201 - Anti - slip protrusion;

[0042] 3 - Pressure - sensitive strip; 3a - Bent section; 3b - Straight section; 301 - Elastic rubber tube; 302 - Conductive rubber strip; 303 - Conductive wire; 304 - Deformation cavity;

[0043] 4 - Conducting wire; 5 - Isolation cushion layer; 6 - Heat - shrinkable tube; 7 - Bending avoidance opening. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0045] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0046] At the same time, the meaning of "and / or" or "and / or" that appears throughout the text is that it includes three solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously.

[0047] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0048] As Figures 1 to 8 As commonly shown, this embodiment provides a pressure-sensitive safety protection device, including a first protective layer 1 and a second protective layer 2. Both the first protective layer 1 and the second protective layer 2 are made of insulating rubber material. The second protective layer 2 is hermetically fastened on the first protective layer 1, and there is a sealed detection cavity between the first protective layer 1 and the second protective layer 2. A pressure-sensitive strip 3 is laid on the side of the first protective layer 1 facing the second protective layer 2. The pressure-sensitive strip 3 is located in the sealed detection cavity and is arranged in an S shape. The pressure-sensitive strip 3 includes a bent section 3 and a straight section 3. The straight section 3 is inclined, and the distance between two adjacent straight sections 3 gradually narrows / widens from one end to the other end.

[0049] As Figures 1 to 5 As commonly shown, a wire 4 is further provided between the first protective layer 1 and the second protective layer 2. One end of the wire 4 extends into the sealed detection cavity and is electrically connected to the pressure-sensitive strip 3, and the other end of the wire 4 extends outside the first protective layer 1 and the second protective layer 2.

[0050] In one embodiment, as Figures 2 to 7 As commonly shown, a laying groove 101 is formed on the side of the first protective layer 1 facing the second protective layer 2. The pressure-sensitive strip 3 is located in the laying groove 101, and the bottom surface of the pressure-sensitive strip 3 is adhesively fixed to the first protective layer 1, and the top surface of the pressure-sensitive strip 3 is in contact with the second protective layer 2. The laying groove 101 formed on the first protective layer 1 facilitates the precise positioning and laying of the pressure-sensitive strip 3, greatly improving both the laying efficiency and the laying accuracy of the pressure-sensitive strip 3, making the laying of the pressure-sensitive strip 3 neat and efficient.

[0051] In one embodiment, as Figures 2 to 4As shown together, an annular isolation cushion layer 5 is further provided between the first protective layer 1 and the second protective layer 2. The isolation cushion layer 5 is located at the circumferential edges of the first protective layer 1 and the second protective layer 2, and both sides of the isolation cushion layer 5 are hermetically bonded to the first protective layer 1 and the second protective layer 2 respectively. The thickness of the isolation cushion layer 5 is the same as the height of the pressure-sensitive strip 3 protruding from the laying groove 101. A sealed detection cavity is formed by enclosing the first protective layer 1, the isolation cushion layer 5 and the second protective layer 2. The isolation cushion layer 5 provided between the first protective layer 1 and the second protective layer 2 facilitates the sealed connection between the first protective layer 1 and the second protective layer 2, and at the same time realizes the effective support for the second protective layer 2, providing a reliable guarantee for realizing the effective detection of trampling.

[0052] In one embodiment, as Figures 3 to 7 As shown together, a wiring avoidance groove 102 is further opened on the side of the first protective layer 1 facing the second protective layer 2. The wiring avoidance groove 102 is located at the corner position of the first protective layer 1. Both ends of the pressure-sensitive strip 3 and one end of the wire 4 are located in the wiring avoidance groove 102. The wire 4 is conductively connected to the pressure-sensitive strip 3 in the wiring avoidance groove 102. The wiring avoidance groove 102 provides convenience for the wiring connection between the wire 4 and the pressure-sensitive strip 3.

[0053] In one embodiment, as Figures 3 to 7 As shown together, the first protective layer 1 is further provided with a lead wire groove 103 corresponding to the wiring avoidance groove 102. One end of the wire 4 extends to the wiring avoidance groove 102 through the lead wire groove 103; the lead wire groove 103 opened on the first protective layer 1 facilitates the wiring and leading of the wire 4.

[0054] In one embodiment, as Figure 3 、 Figures 5 to 7 As shown together, the first protective layer 1 is further provided with a wire clamping and anti-disengagement groove 104. The wire clamping and anti-disengagement groove 104 is located in the middle of the lead wire groove 103. A heat shrinkable tube 6 is sleeved on the wire 4. The heat shrinkable tube 6 is adapted to the wire clamping and anti-disengagement groove 104, and the heat shrinkable tube 6 is located in the wire clamping and anti-disengagement groove 104. The first protective layer 1 is provided with the wire clamping and anti-disengagement groove 104, the heat shrinkable tube 6 is sleeved on the wire 4, and the heat shrinkable tube 6 is clamped into the wire clamping and anti-disengagement groove 104, which can prevent the wire 4 from being pulled out, prevent the connection between the wire 4 and the pressure-sensitive strip 3 from being disconnected due to pulling the wire 4, and at the same time can improve the waterproof effect and prevent water from entering the device interior.

[0055] In one embodiment, as Figures 1 to 7 As shown together, missing material parts are provided at the corner positions of the first protective layer 1, the isolation cushion layer 5 and the second protective layer 2. The missing material parts enclose a bending avoidance opening 7 corresponding to the wire 4; the provided bending avoidance opening 7 facilitates the swinging of the wire 4 in different directions, provides convenience for the wiring of the wire 4, and has a beautiful appearance.

[0056] In one embodiment, as Figures 1 to 3As commonly shown, a plurality of anti-slip protrusions 201 are provided on the side of the second protection layer 2 away from the first protection layer 1. The anti-slip protrusions 201 correspond to the pressure-sensitive strips 3 located below them, that is, the straight segments 3 of the pressure-sensitive strips 3 are respectively located directly below each row of anti-slip protrusions 201. The anti-slip protrusions 201 provided on the second protection layer 2 have the function of anti-slip, and the anti-slip protrusions 201 correspond to the pressure-sensitive strips 3, that is, the pressure-sensitive strips 3 are located directly below the anti-slip protrusions 201, making the detection sensitivity of the device higher.

[0057] In one embodiment, as Figure 9 shown, the pressure-sensitive strip 3 includes an elastic rubber tube 301. Conductive rubber strips 302 are provided on both the inner top and bottom of the elastic rubber tube 301. The conductive rubber strips 302 are arranged along the length direction of the elastic rubber tube 301, and conductive wires 303 are respectively provided along the length direction inside the conductive rubber strips 302. There is a gap between the two conductive rubber strips 302, and a deformation cavity 304 is formed by enclosing between the conductive rubber strips 302 and the elastic rubber tube 301. The provided pressure-sensitive strip 3 has a simple structure. When stepping on the device, under the action of external pressure, the elastic rubber tube 301 will deform, so that the upper and lower conductive rubber strips 302 come into contact, and the detection of external pressure can be realized, with high detection sensitivity.

[0058] In one embodiment, the conductive wire 303 includes bulletproof wire, copper foil wire and silver foil wire. The copper foil wire and silver foil wire are wound around the bulletproof wire, greatly improving the conductivity of the conductive wire 303, and having good toughness and yield resistance, thus greatly improving the detection sensitivity and service life of the pressure-sensitive strip 3.

[0059] Based on the above-structured pressure-sensitive safety protection device, it has a simple structure. During preparation, the pressure-sensitive strip 3 is laid on the first protection layer 1, and then the wiring connection between the pressure-sensitive strip 3 and the wire 4 is carried out. After that, the isolation cushion layer 5 is hermetically adhered to the first protection layer 1, and finally, the second protection layer 2 is hermetically buckled. The preparation operation is simple and convenient, and the preparation cost is low; when stepping on the pressure-sensitive safety protection device, the second protection layer 2 transmits the pressure to the pressure-sensitive strip 3, and the pressure-sensitive strip 3 realizes the detection of the pressure signal. And due to the laying track of the pressure-sensitive strip 3, the laying amount of the pressure-sensitive strip 3 on the same area protection layer is larger, that is, on the premise that the bending degree of the bending section 3 is certain, the laying of the pressure-sensitive strip 3 is denser and the detection sensitivity is higher; in addition, the wire 4 extends into the sealed detection cavity to be connected with the pressure-sensitive strip 3 for wiring, making the wiring operation more convenient, having good waterproof performance, and being aesthetically pleasing.

[0060] It should be understood that the use of these embodiments is only for illustrating the present utility model rather than intending to limit the protection scope of the present utility model. In addition, it should also be understood that after reading the technical content of the present utility model, those skilled in the art can make various changes, modifications and / or variations to the present utility model, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A pressure-sensitive safety protection device, characterized in that, It comprises a first protective layer and a second protective layer, wherein the second protective layer is sealed and buckled on the first protective layer, and a sealed detection cavity is provided between the first protective layer and the second protective layer; A pressure-sensitive strip is laid on one side of the first protective layer facing the second protective layer, the pressure-sensitive strip is located in the sealed detection cavity, and the pressure-sensitive strip is arranged in an S shape, the pressure-sensitive strip includes a bending segment and a straight segment, the straight segment is arranged obliquely, and the distance between two adjacent straight segments is gradually narrowed / widened from one end to the other end; A wire is also provided between the first protective layer and the second protective layer, one end of the wire extends into the sealed detection cavity and is electrically connected to the pressure-sensitive strip, and the other end of the wire extends outside the first protective layer and the second protective layer.

2. The pressure-sensitive safety protection device according to claim 1, characterized in that, A laying groove is provided on the side of the first protective layer facing the second protective layer, the pressure-sensitive strip is located in the laying groove, the bottom surface of the pressure-sensitive strip is bonded and fixed to the first protective layer, and the top surface of the pressure-sensitive strip is in contact with the second protective layer.

3. The pressure-sensitive safety protection device according to claim 2, characterized in that, An annular isolation pad layer is also provided between the first protective layer and the second protective layer. The isolation pad layer is located at the circumferential edge of the first protective layer and the second protective layer, and the two sides of the isolation pad layer are respectively sealed and bonded to the first protective layer and the second protective layer. The sealed detection cavity is formed between the first protective layer, the isolation pad layer and the second protective layer.

4. The pressure-sensitive safety protection device according to claim 3, characterized in that, A wiring avoidance groove is also provided on a side of the first protective layer facing the second protective layer, and the wiring avoidance groove is located at a corner position of the first protective layer.

5. The pressure-sensitive safety protection device according to claim 4, wherein The first protective layer is further provided with a lead groove corresponding to the wiring avoidance groove, and one end of the wire extends to the wiring avoidance groove through the lead groove.

6. The pressure-sensitive safety protection device according to claim 5, characterized in that, The first protective layer is also provided with a wire-holding anti-slip groove, which is located in the middle of the lead groove. A heat shrink tube is sleeved on the wire, which is matched with the wire-holding anti-slip groove and is located in the wire-holding anti-slip groove.

7. The pressure-sensitive safety protection device according to claim 6, wherein, The first protective layer, the isolation pad layer and the second protective layer are all provided with missing material parts at their corners, and the missing material parts are arranged to form a bending avoidance opening corresponding to the wire.

8. The pressure-sensitive safety protection device according to any one of claims 1-7, characterized in that, A plurality of anti-skid protrusions are arranged on a side of the second protective layer facing away from the first protective layer, and the anti-skid protrusions correspond to the pressure-sensitive strips located therebelow.

9. The pressure-sensitive safety protection device according to claim 8, characterized in that, The pressure-sensitive strip includes an elastic rubber tube, and conductive rubber strips are provided on the top and bottom of the inner side of the elastic rubber tube. The conductive rubber strip is arranged along the length direction of the elastic rubber tube, and conductive wires are respectively provided inside the conductive rubber strip along the length direction thereof. There is a gap between the two conductive rubber strips, and a deformation cavity is formed between the conductive rubber strip and the elastic rubber tube.

10. The pressure-sensitive safety protection device according to claim 9, characterized in that, The conductive wire comprises a bulletproof wire, a copper foil wire and a silver foil wire, and the copper foil wire and the silver foil wire are wound around the bulletproof wire.

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