Needling car arrester

Abstract

The utility model relates to a needling car arrester which comprises a fiber net, a connecting base and needling nails. The number of the connecting bases and the number of the shooting needle nails are both multiple, the multiple shooting needle nails are arranged at intervals, each shooting needle nail is connected with one connecting base, and each connecting base is connected with one connecting node of the fiber net. The firing pin pricking nail comprises an igniter cap seat and a firing pin, the igniter cap seat and the firing pin are coaxially arranged in the connecting base; the fire cap seat is filled with pressure-sensitive gas production powder, and the firing pin is movably connected with the connecting base; when the firing pin is pressed, the firing pin slides downwards along the inner wall of the connecting base, the tail of the firing pin is close to the fire cap base to excite the pressure-sensitive gas production medicine, and therefore the head of the firing pin is ejected out of the connecting base. The head of the firing pin is ejected out under the expansion reverse thrust effect of gas, so that the firing pin is deeply attached to a tire and rotates along with the tire, the tire is locked through the fiber net, meanwhile, the tire burst risk of a blocked vehicle can be reduced, and effective interception is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of blocking equipment, and particularly relates to a needle puncture vehicle stopper. BACKGROUND

[0002] The vehicle stopper is also called a tire breaker or a tire piercer, and is developed for the purpose of preventing highway escape. The vehicle stopper is a special device for preventing vehicles by damaging the tires. The existing vehicle stopper is mainly arranged in a roadblock area to achieve interception by a vehicle stopping spike. The structure of the vehicle stopping spike has two types, one is a hard triangular edge spike, and the other is a single conical spike provided with a deflation hole. When a vehicle passes through the roadblock area, the vehicle stopping spike pierces into the tire to deflate the tire, thereby damaging the tire to achieve effective interception. However, if the tire of the vehicle is deflated and bursts, the vehicle will lose control and cause greater harm to the surrounding personnel. For some vehicles equipped with explosion-proof tires, the vehicle stopper does not have an interception effect, and such vehicles can still carry the vehicle stopping spike to travel. Therefore, a vehicle stopper capable of effectively intercepting vehicles and reducing the risk of tire burst of the blocked vehicle is needed. SUMMARY

[0003] In order to solve the above problems in the prior art, the utility model provides a needle puncture vehicle stopper. The technical problem to be solved by the utility model is solved through the following technical scheme:

[0004] The utility model provides a needle puncture vehicle stopper, a needle puncture vehicle stopper, it includes: fiber web, connecting base and needle spike, the connecting base with the needle spike is respectively a plurality of, a plurality of needle spike interval setting, every needle spike is connected with a connecting base, every connecting base is connected with the fiber web one connection node, the needle spike includes: fire cap seat and firing pin, the fire cap seat with the firing pin coaxial setting in the connecting base, the fire cap seat is filled with pressure sensitive gas generating medicine, the firing pin is movably connected with the connecting base, wherein, under pressure, the firing pin slides down along the inner wall of the connecting base, the tail of the firing pin is close to the fire cap seat to excite the pressure sensitive gas generating medicine, thereby the head of the firing pin is ejected out of the connecting base, the head is the part of the firing pin away from the fire cap seat, and the tail of the firing pin is the part of the firing pin close to the fire cap seat.

[0005] In an embodiment of the utility model, the fiber web includes: a plurality of high-strength fiber ropes, any two adjacent high-strength fiber ropes are cross-staggered to form a connection node of the fiber web, and a plurality of high-strength fiber ropes are cross-staggered to form a net-like structure.

[0006] In one embodiment of the utility model, the fiber net further comprises: a plurality of threaded bases; the plurality of threaded bases are one-to-one correspondingly arranged on the plurality of connecting nodes; wherein, a connecting hole is arranged on each threaded base, and the high-strength fiber rope is connected through the connecting hole.

[0007] In one embodiment of the utility model, the bottom outer surface of the connecting base is provided with threads, and the plurality of connecting bases are one-to-one correspondingly threadedly connected with the plurality of threaded bases.

[0008] In one embodiment of the utility model, the needle shooting nail further comprises: an impact response pad, the primer holder, the impact response pad and the firing pin are coaxially arranged in the connecting base, and the impact response pad is located between the primer holder and the firing pin.

[0009] In one embodiment of the utility model, the pressure-sensitive gas generating medicine is arranged at the top center area of the primer holder, and the impact response pad is provided with a through hole in the axial direction.

[0010] In one embodiment of the utility model, the connecting base is internally provided with a cavity, and the cavity comprises: a first connecting part, a second connecting part and a third connecting part which are coaxially arranged in sequence from bottom to top; wherein, the primer holder is threadedly connected with the first connecting part; the impact response pad is located in the second connecting part, and gaps are arranged between the impact response pad and the axial and circumferential inner walls of the second connecting part; and the firing pin is movably connected with the third connecting part.

[0011] In one embodiment of the utility model, the third connecting part comprises: a limiting section and a guide section which are coaxially arranged in sequence from top to bottom, and the diameter of the limiting section is smaller than that of the guide section.

[0012] In one embodiment of the utility model, the firing pin further comprises: a guide limiting part; the head, the guide limiting part and the tail are coaxially arranged in sequence from top to bottom, the diameter of the head gradually increases from top to bottom, and the diameter of the tail gradually decreases from top to bottom; the guide limiting part is movably connected with the guide section, and the head partially extends out of the limiting section.

[0013] In one embodiment of the utility model, when being pressed, the firing pin slides downward along the inner wall of the connecting base, the tail penetrates through the through hole of the impact response pad to excite the pressure-sensitive gas generating medicine, so that the head of the firing pin is ejected out of the limiting section.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The needle puncture vehicle stopper is characterized in that: a plurality of needle puncture nails are connected to the fiber net through the connecting bases; the bottom end of each needle puncture nail is provided with a fire cap seat, and the fire cap seat is filled with pressure-sensitive gas generating agent; when being pressed, the firing pin slides downward and inward along the inner wall of the connecting base to stimulate the pressure-sensitive gas generating agent; after being stimulated, the pressure-sensitive gas generating agent has a violent combustion reaction and rapidly generates a large amount of combustion gas.

[0016] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, and in order to let the above and other purposes, characteristics and advantages of the utility model can be more obvious and easy to understand, the following preferred embodiments are taken, and the specific description is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of a needle puncture vehicle stopper provided by the utility model embodiment;

[0018] Figure 2 It is a structure schematic view of another needle puncture vehicle stopper provided by the utility model embodiment;

[0019] Figure 3 It is a structure schematic view of a fiber net provided by the utility model embodiment;

[0020] Figure 4 It is a structure schematic view of a threaded base provided by the utility model embodiment;

[0021] Figure 5 It is a structure schematic view of the connecting base and the needle puncture nail provided by the utility model embodiment;

[0022] Figure 6 It is a structure schematic view of the connecting base provided by the utility model embodiment;

[0023] Figure 7 It is a structure schematic view of a fire cap seat provided by the utility model embodiment;

[0024] Figure 8 It is a bottom schematic view of the fire cap seat provided by the utility model embodiment;

[0025] Figure 9 It is a structure schematic view of an impact response pad provided by the utility model embodiment;

[0026] Figure 10Is another impact response pad structure schematic diagram provided by the embodiment of the utility model;

[0027] Figure 11 Is the structure schematic diagram of the needle provided by the embodiment of the utility model.

[0028] Icon: 100-fiber net; 110-high strength fiber rope; 120-thread base; 121-connection hole; 200-connection base; 210-first connection part; 220-second connection part; 230-third connection part; 231-limiting section; 232-guiding section; 300-needle spike; 310-fire cap base; 320-impact response pad; 321-through hole; 330-needle; 331-head; 332-guiding limiting part; 333-tail. DETAILED DESCRIPTION

[0029] In order to further illustrate the technical means and effects taken by the utility model to achieve the predetermined utility model purpose, the following will be combined with the drawings and specific embodiments, and a needle spike vehicle stopper according to the utility model is described in detail.

[0030] The foregoing and other technical contents, characteristics and effects of the utility model can be clearly presented in the specific embodiment detailed description below with the aid of the drawings. Through the description of the specific embodiment, the technical means and effects taken by the utility model to achieve the predetermined purpose can be more deeply and specifically understood, however, the attached drawings are only provided for reference and explanation, and are not used to limit the technical scheme of the utility model.

[0031] Embodiment one

[0032] The existing vehicle stopper is difficult to realize effective interception braking effect, especially for the case of light vehicle or slow speed, the existing vehicle stopper is deeply attached to the tire, resulting in poor interception braking effect. In view of this, the embodiment provides a needle spike vehicle stopper.

[0033] As Figure 1 And Figure 3 Shown, Figure 1 Is a structure schematic diagram of the needle spike vehicle stopper provided by the embodiment of the utility model; Figure 3 Is the structure schematic diagram of the fiber net provided by the embodiment of the utility model.

[0034] In the embodiment, the needle puncture vehicle stopper comprises a fiber net 100, a plurality of connecting bases 200 and a plurality of needle puncture spikes 300; the connecting bases 200 and the needle puncture spikes 300 are both a plurality of, the plurality of needle puncture spikes 300 are arranged at intervals, each of the needle puncture spikes 300 is connected with one of the connecting bases 200, and each of the connecting bases 200 is connected with one of connecting nodes of the fiber net 100; the needle puncture spike 300 comprises a primer cup seat 310 and a firing pin 330; the primer cup seat 310 and the firing pin 330 are coaxially arranged in the connecting base 200; the primer cup seat 310 is filled with a pressure-sensitive gas generating agent, and the firing pin 330 is movably connected with the connecting base 200; wherein the head 331 is a part of the firing pin 330 away from the primer cup seat 310, and the tail 333 of the firing pin 330 is a part of the firing pin 330 close to the primer cup seat 310.

[0035] Specifically, when being pressed, the firing pin 330 slides downwards along the inner wall of the connecting base 200, the tail 333 of the firing pin 330 is close to the primer cup seat 310 to trigger the pressure-sensitive gas generating agent, so that the head 331 of the firing pin 330 is ejected out of the connecting base 200.

[0036] In an optional embodiment, as shown in the figure, Figure 3 the fiber net 100 comprises a plurality of high-strength fiber ropes 110, any two adjacent high-strength fiber ropes 110 are cross-staggered to form one of the connecting nodes of the fiber net 100, and the plurality of high-strength fiber ropes 110 are cross-staggered to form a net structure.

[0037] For example, the high-strength fiber rope 110 can adopt high-strength Kevlar fiber.

[0038] It is worth noting that the fiber net 100 is composed of a plurality of high-strength fiber ropes 110 cross-staggered with each other, the connecting nodes can be determined through the high-strength fiber ropes 110, and the positions of the connecting bases 200 and the needle puncture spikes 300 are positioned according to the connecting nodes. Meanwhile, after the head 331 of the firing pin 330 is ejected out and penetrates into the tire, the fiber net 100 is further wound on the tire and the wheel shaft, and finally the tire is locked to achieve the braking effect, so that the interception can be realized without deflating the tire, thereby reducing the risk of tire burst of the blocked vehicle.

[0039] As shown in the figures, Figure 2 , Figure 3 and Figure 4 , Figure 2 is a structural schematic view of another needle puncture vehicle stopper provided by the embodiment of the utility model; Figure 4 is a structural schematic view of a threaded base provided by the embodiment of the utility model.

[0040] In an alternative embodiment, the fiber net 100 further comprises: a plurality of threaded bases 120; the plurality of threaded bases 120 are arranged on the plurality of connecting nodes one by one; wherein each threaded base 120 is provided with a connecting hole 121, and the high-strength fiber rope 110 is connected through the connecting hole 121.

[0041] Exemplarily, the bottom outer surface of the connecting base 200 is provided with threads, and the plurality of connecting bases 200 are threadedly connected to the plurality of threaded bases 120 one by one.

[0042] Specifically, the connecting nodes are formed by the high-strength fiber ropes 110 arranged staggeredly on the fiber net 100, the threaded bases 120 are fixed on the corresponding connecting nodes through the connecting holes 121, the connecting base 200 is threadedly connected to the corresponding threaded base 120, and the needle-shaped nails 300 are arranged in the connecting base 200 correspondingly.

[0043] Preferably, the needle-shaped nails 300 on the adjacent rows or columns are arranged staggeredly, and do not affect each other when the fiber net 100 is rolled up.

[0044] Exemplarily, each threaded base 120 can be provided with two mutually perpendicular through connecting holes 121, and the high-strength fiber ropes 110 are arranged crossly and correspondingly pass through the two mutually perpendicular through connecting holes 121, so as to connect the threaded base 120 and the high-strength fiber rope 110 into an integral whole.

[0045] In an alternative embodiment, the fiber net 100 can be arranged in a modular manner, the fiber net 100 is arranged as units that can be connected to each other, each unit comprises at least two rows or two columns of high-strength fiber ropes 110, the threaded bases 120 are connected on the connecting nodes, and the needle-shaped nails 300 on the adjacent rows or columns are arranged staggeredly. In use, a plurality of units can be selected to form the fiber net 100 according to actual needs, and the adjacent units can be connected and fixed by means of quick release buckles, connecting shafts or straps.

[0046] Exemplarily, the node (grid) spacing of the fiber net 100 can be set to 80mm*80mm, so as to ensure that the needle-shaped nails 300 arranged thereon have sufficient quantity and density.

[0047] As shown in Figure 2 , Figure 5 and Figure 6 , the structure of the connecting base and the needle-shaped nail is shown in Fig. Figure 5 is a structure diagram of a connecting base provided by an embodiment of the utility model. Figure 6 is a structure diagram of a connecting base provided by an embodiment of the utility model.

[0048] In the embodiment, the needle shooting staple 300 further comprises an impact response pad 320; the percussion cap seat 310, the impact response pad 320 and the firing pin 330 are coaxially arranged in the connecting base 200, and the impact response pad 320 is located between the percussion cap seat 310 and the firing pin 330.

[0049] Specifically, the connecting base 200 is internally provided with a cavity, and the cavity comprises a first connecting portion 210, a second connecting portion 220 and a third connecting portion 230 which are coaxially arranged from bottom to top; the percussion cap seat 310 is threadedly connected to the first connecting portion 210; the impact response pad 320 is located in the second connecting portion 220, and gaps are arranged between the impact response pad 320 and the axial and circumferential inner walls of the second connecting portion 220; and the firing pin 330 is movably connected to the third connecting portion 230.

[0050] It is worth noting that the impact response pad 320 is arranged between the percussion cap seat 310 and the firing pin 330, which plays a role in isolating the firing pin 330 from the pressure-sensitive gas generating agent in the percussion cap seat 310; by setting the structure or material of the impact response pad 320, the impact response pad 320 can deform only when subjected to a corresponding impact force, and the firing pin 330 can contact the pressure-sensitive gas generating agent to ignite the pressure-sensitive gas generating agent only when the impact response pad 320 deforms, thereby improving the safety performance.

[0051] As shown in Figure 5 to Figure 8 , Figure 7 is a structural schematic view of a percussion cap seat provided by the embodiment of the utility model; Figure 8 is a bottom schematic view of the percussion cap seat.

[0052] In an optional implementation, the pressure-sensitive gas generating agent is arranged at the top center area of the percussion cap seat 310.

[0053] For example, the pressure-sensitive gas generating agent is a pyrotechnic agent, and is provided with a sealing structure to seal against moisture, such as being coated with a sealing material, so as to maintain the performance of the pressure-sensitive gas generating agent.

[0054] For example, as shown in Figure 2 , Figure 7 and Figure 8 , the bottom of the percussion cap seat 310 is provided with a tightening slot, which can be a straight type, a cross type or a hexagonal type, and the percussion cap seat 310 is screwed or unscrewed from the connecting base 200 by means of a corresponding tool so as to replace the pressure-sensitive gas generating agent.

[0055] As shown in Figure 5 , Figure 6 and Figure 11 , Figure 11 is a structural schematic view of a firing pin provided by the embodiment of the utility model.

[0056] In an alternative embodiment, the third connecting portion 230 comprises a limiting segment 231 and a guiding segment 232 coaxially arranged from top to bottom, and the diameter of the limiting segment 231 is smaller than that of the guiding segment 232.

[0057] In an alternative embodiment, the firing pin 330 further comprises a guiding limiting portion 332, and the head portion 331, the guiding limiting portion 332 and the tail portion 333 are coaxially arranged from top to bottom, the guiding limiting portion 332 is movably connected to the guiding segment 232, and the head portion 331 partially extends out of the limiting segment 231.

[0058] For example, the head portion 331 can be provided with a tapered end, and the diameter of the head portion 331 gradually increases from top to bottom; the diameter of the tail portion 333 gradually decreases from top to bottom.

[0059] Preferably, the head portion 331 can be provided with a quadrangular pyramid or a pentagonal pyramid.

[0060] For example, the length of the head portion 331 is at least 20 mm, and correspondingly, the moving distance of the guiding limiting portion 332 after the pressure-sensitive gas-producing drug is excited is also at least 20 mm. In other words, the combination of the firing pin 330 and the connecting base 200 is regarded as a piston cylinder, and the stroke h of the firing pin 330 as a piston is at least 20 mm, that is, the penetration depth of the firing pin 330 is at least 20 mm.

[0061] Preferably, the length of the head portion 331 can be set to 28 mm, and the stroke h can be set to 20 mm, which ensures that the head portion 331 of the firing pin 330 still has sufficient length to penetrate into the tire after being ejected out of the limiting segment 231, forming a stable and reliable connection.

[0062] For example, the guiding segment 232 and the guiding limiting portion 332 adopt a clearance fit.

[0063] It can be understood that, in the connecting base 200, the head portion 331 of the firing pin 330 is arranged away from the primer cup seat 310, and the tail portion 333 is arranged close to the primer cup seat 310, so that when the connecting base 200 is placed vertically, the upper end of the connecting base 200 is regarded as the upward direction in the embodiment, and correspondingly, the lower end of the connecting base 200 is regarded as the downward direction in the embodiment. In other words, the head portion 331 can at least partially extend out of the upper end (the third connecting portion 230) of the connecting base 200.

[0064] It is worth noting that the limiting segment 231 is provided to ensure that the guiding limiting portion 332 only makes sliding motion in the guiding segment 232, and the head portion 331 can extend out of the limiting segment 231 to achieve ejection.

[0065] As shown in Figure 9 and Figure 10 , the head portion 331 of the firing pin 330 is provided with a tapered end, and the diameter of the head portion 331 gradually increases from top to bottom. Figure 9It is a structure schematic view of an impact response pad provided by the embodiment of the utility model. Figure 10 It is another structure schematic view of an impact response pad provided by the embodiment of the utility model.

[0066] Exemplarily, the impact response pad 320 is provided with a through hole 321 in the axial direction.

[0067] The working principle of the pressure-sensitive gas-producing medicine in the embodiment is that a large amount of fuel gas is generated after the pressure-sensitive gas-producing medicine is excited, and the firing pin 330 is ejected through the expansion counter-thrust of the fuel gas, therefore, the pressure-sensitive gas-producing medicine is arranged at the top center area of the primer cup seat 310, the primer cup seat 310, the impact response pad 320 and the firing pin 330 are coaxially arranged with the connecting base 200, the impact response pad 320 is provided with the through hole 321 which is communicated with the top center area of the primer cup seat 310, and the tail 333 passes through the through hole 321 and contacts the pressure-sensitive gas-producing medicine at the top center area of the primer cup seat 310.

[0068] Exemplarily, in order to prevent mis-triggering, the deformation threshold of the impact response pad 320 can be set as 150kg, and the actual trigger force is greater than 300kg, that is, the impact response pad 320 will not be deformed when the impact force received is not greater than 150kg, and the tail 333 will not contact the pressure-sensitive gas-producing medicine through the impact response pad 320 when the impact force received is not greater than 300kg. Relatively, only when the impact exceeding 300kg is received, the impact response pad 320 is deformed, and the tail 333 passes through the through hole 321 of the impact response pad 320 to excite the pressure-sensitive gas-producing medicine. In addition, in order to prevent personnel from being pricked, the needle puncture retarder of the utility model is in the packaging and laying state, and the head 331 of the firing pin 330 is sleeved with a plastic protective cap.

[0069] It can be understood that the structure of the impact response pad 320 can be set according to actual needs, such as trigger force, only needs to ensure that the impact response pad 320 can be deformed under the corresponding trigger force, so that the head 331 of the firing pin 330 can excite the pressure-sensitive gas-producing medicine, and is not limited to the structure in the embodiment. Figure 9 Or Figure 10 In addition, the pressure-sensitive gas-producing medicine can also be arranged below the impact response pad 320, and the pressure-sensitive gas-producing medicine is excited through the impact of the impact response pad 320.

[0070] The working principle of the needle spike vehicle stopper in the embodiment is that the net type pyrotechnic needle spike vehicle stopper in the embodiment is placed in the advancing direction of the vehicle to be intercepted, the fiber net 100 is laid on the road surface, when the vehicle tire rolls on the needle spike 300, the striker 330 slides downward and retreats along the inner wall of the connecting base 200 under the pressure of the vehicle tire, the tail part 333 penetrates through the through hole 321 of the impact response pad 320 to trigger the pressure sensitive gas generating agent, after the pressure sensitive gas generating agent is triggered, a violent combustion reaction occurs and a large amount of combustion gas is rapidly generated, under the expansion and back thrust of the combustion gas, the head part 331 of the striker 330 is ejected out of the limiting section 231 and deeply attached to the tire, with the natural rotation of the tire, more needle spikes 300 are triggered, the fiber net 100 is also anchored on the tire, with the rotation of the vehicle tire, the fiber net 100 continuously winds the tire and the axle, finally the tire is locked, the vehicle is stopped, and the effective interception is realized.

[0071] The needle spike vehicle stopper has the advantages that the plurality of needle spikes are connected to the fiber net through the connecting base, the bottom end of each needle spike is provided with a primer cup seat, the primer cup seat is filled with the pressure sensitive gas generating agent, when the needle spike is pressed, the striker slides downward and retreats along the inner wall of the connecting base to trigger the pressure sensitive gas generating agent, after the pressure sensitive gas generating agent is triggered, a violent combustion reaction occurs and a large amount of combustion gas is rapidly generated, under the expansion and back thrust of the combustion gas, the head part of the striker is ejected out of the connecting base and deeply attached to the tire, with the rotation of the tire, the fiber net is further wound on the tire and the axle, finally the tire is locked to realize the braking effect, meanwhile, the risk of tire burst of the blocked vehicle is reduced, and the effective interception is realized.

[0072] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying that there is any such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process or method. Without further limitation, an element preceded by "comprises... " does not, without more constraints, foreclose the existence of additional identical elements in the process or method that includes the recited value. The terms "connected" or "coupled" or the like are not limited to a physical or mechanical connection or linkage to another component, but can also include an electrical connection, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like indicate the orientation or position shown in the drawings based on the orientation or position shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and thus cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0073] The above is a further detailed description of the present application in combination with specific preferred embodiments, and cannot be deemed to limit the specific implementation of the present application to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, some simple deductions or substitutions can be made without departing from the concept of the present application, and all of them shall be deemed to fall within the protection scope of the present application.

Claims

1. A spike vehicle stop, characterized by, The application relates to a fiber net (100), a connecting base (200) and a needle shooting nail (300). The connecting base (200) and the needle shooting nail (300) are both a plurality of, the plurality of needle shooting nails (300) are arranged at intervals, each needle shooting nail (300) is connected with one connecting base (200), and each connecting base (200) is connected with one connecting node of the fiber net (100). The needle shooting nail (300) comprises a primer cup (310) and a firing pin (330), the primer cup (310) and the firing pin (330) are coaxially arranged in the connecting base (200), the primer cup (310) is filled with pressure-sensitive gas generating agent, and the firing pin (330) is movably connected with the connecting base (200). When pressure is applied, the firing pin (330) slides downward along the inner wall of the connecting base (200), the tail (333) of the firing pin (330) is close to the primer cup (310) to trigger the pressure-sensitive gas generating agent, so that the head (331) of the firing pin (330) is shot out of the connecting base (200), the head (331) is the part of the firing pin (330) far away from the primer cup (310), and the tail (333) of the firing pin (330) is the part of the firing pin (330) close to the primer cup (310). The fiber net (100) comprises a plurality of high-strength fiber ropes (110), and any two adjacent high-strength fiber ropes (110) are cross-staggered to form one connecting node of the fiber net (100), and the plurality of high-strength fiber ropes (110) are cross-staggered to form a net structure.

2. The spike stop as defined in claim 1, wherein, The fiber net (100) further comprises a plurality of threaded bases (120), and the threaded bases (120) are arranged on the connecting nodes one by one in a one-to-one correspondence, wherein the threaded base (120) is provided with a connecting hole (121), and the high-strength fiber rope (110) is connected through the connecting hole (121).

3. The spike stop as defined in claim 2 wherein, The bottom outer surface of the connecting base (200) is provided with threads, and the connecting bases (200) are threadedly connected with the threaded bases (120) in a one-to-one correspondence.

4. The spike stop as defined in claim 3 wherein, The needle shooting nail (300) further comprises an impact response pad (320), the primer cup (310), the impact response pad (320) and the firing pin (330) are coaxially arranged in the connecting base (200), and the impact response pad (320) is located between the primer cup (310) and the firing pin (330).

5. The spike stop as defined in claim 1 wherein, The pressure-sensitive gas generating agent is arranged in the top center area of the primer cup (310), and the impact response pad (320) is provided with a through hole (321) in the axial direction.

6. The spike stop as defined in claim 5 wherein, The connecting base (200) is internally provided with a cavity, and the cavity comprises a first connecting portion (210), a second connecting portion (220) and a third connecting portion (230) which are coaxially arranged from bottom to top.

7. The spike stop as defined in claim 6 wherein, ​ The fire cap seat (310) is threadedly connected with the first connecting part (210); the impact response pad (320) is located in the second connecting part (220), and gaps are arranged between the impact response pad (320) and the axial and circumferential inner walls of the second connecting part (220); and the firing pin (330) is movably connected with the third connecting part (230).

8. The spike stop as defined in claim 7, wherein, The third connecting part (230) comprises a limiting section (231) and a guide section (232) coaxially arranged in sequence from top to bottom, and the diameter of the limiting section (231) is smaller than that of the guide section (232).

9. The spike stop as defined in claim 8 wherein, The firing pin (330) further comprises a guide limiting part (332). The head (331), the guide limiting part (332) and the tail (333) are coaxially arranged in sequence from top to bottom, the diameter of the head (331) gradually increases from top to bottom, and the diameter of the tail (333) gradually decreases from top to bottom. The guide limiting part (332) is movably connected with the guide section (232), and the head (331) partially extends out of the limiting section (231).

10. The spike stop as defined in claim 8 wherein, When under pressure, the firing pin (330) slides downward along the inner wall of the connecting base (200), the tail (333) passes through the through hole (321) of the impact response pad (320) to excite the pressure-sensitive gas generating agent, so that the head (331) of the firing pin (330) is ejected out of the limiting section (231).

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