Police site blocking and isolating device

Abstract

The invention relates to the technical field of police security and protection equipment, and particularly discloses a police on-site blocking and isolating device. The top cap is arranged at the top of the column; the base is arranged at the bottom of the upright; the inserting grooves are formed in the side walls of the stand columns. The trigger swing block is arranged in an inner cavity of the stand column on the inner side of the inserting groove; the transmission push rod is arranged in an inner cavity of the stand column in a penetrating mode and can vertically slide and displace. Two ends of the transmission connecting rod are rotatably connected to the lower end of the trigger swing block and the upper end of the transmission push rod; the lifting bottom plate is fixedly arranged at the bottom end of the transmission push rod and located in an inner cavity of the base. The multiple vacuum suction cups are arranged on the bottom face of the lifting bottom plate. The reset spring seat is arranged between the inner bottom surface of the base and the lifting bottom plate; the pneumatic auxiliary pressure relief mechanism is arranged in the transmission push rod and extends out of the stand column. On-site rapid isolation, anti-toppling powerful anchoring and vacuum breaking withdrawing are achieved, and linkage triggering of the bottom powerful adsorption action is achieved along with the natural insertion state of the plug.

Description

Technical Field

[0001] This invention relates to the field of police security equipment technology, specifically a police on-site cordon and isolation device. Background Technology

[0002] Police scene isolation and containment are crucial security measures for responding to emergencies, protecting crime scenes, and managing crowds. However, existing operations such as cordoning off, securing the base, and withdrawing / relocating the equipment are often accomplished using different machines or simple cast iron counterweight bases. This can lead to problems such as discontinuous establishment of the defense line, excessive physical exertion for individual personnel due to the heavy counterweight, poor mobility, and insufficient resistance to tipping over in strong winds or crowds. Furthermore, existing modified isolation posts secured with suction cups or bolts rely heavily on officers bending over to step on them or manually locking them. This is significantly affected by the urgency of the situation, personnel fatigue, and ground conditions, resulting in unstable deployment efficiency, discontinuous operational chains, and vulnerability to breaches in some areas. When relocation is required after a mission, the high-strength suction cups often cannot be released in time, usually requiring extremely strenuous pulling, which is inefficient and can easily tear the equipment. Therefore, there is an urgent need for an integrated equipment that can achieve rapid connection and connection, instantaneous clamping and anchoring, and easy pressure release and retraction on the same machine. Furthermore, the chassis's strong gripping state can be triggered and pressure-relieved in conjunction with the normal insertion and removal of the isolation strip, so as to improve the stability and rapid mobility of service operations in combat environments. Summary of the Invention

[0003] This application provides a police scene cordon and isolation device, the main purpose of which is to achieve an integrated equipment that enables rapid deployment and connection, instantaneous anti-tipping anchoring, and one-button pressure release and retraction.

[0004] To achieve the above objectives, this application provides a police scene cordon and isolation device, comprising: a column; a top cap disposed on the top of the column; a base disposed on the bottom of the column; a plug slot formed on the side wall of the column for inserting the plug of an adjacent device from top to bottom; a trigger swing block disposed in the inner cavity of the column inside the plug slot for deflection by the pressure of the plug of the cord; a transmission push rod capable of vertical sliding displacement passing through the inner cavity of the column; two ends of a transmission connecting rod rotatably connected to the lower end of the trigger swing block and the upper end of the transmission push rod, respectively; a lifting base plate fixedly disposed at the bottom end of the transmission push rod and located in the inner cavity of the base; multiple vacuum suction cups disposed on the bottom surface of the lifting base plate; and a reset spring seat disposed between the inner bottom surface of the base and the lifting base plate.

[0005] In one feasible implementation, the triggering swing block is further provided with: a fixed rotating shaft fixedly mounted on the inner wall of the column, the upper end of the triggering swing block being rotatably connected to the fixed rotating shaft; a movable pin passing laterally through the lower end of the triggering swing block, one end of the transmission connecting rod being rotatably connected to the movable pin; wherein, there are two triggering swing blocks arranged symmetrically, and the movable pin passes between the lower ends of the two triggering swing blocks.

[0006] In one feasible embodiment, the isolation belt plug is further provided with a compression protrusion fixedly disposed on the side of the isolation belt plug. When the isolation belt plug is inserted into the insertion slot, the compression protrusion abuts against the trigger swing block and applies a compression force.

[0007] In one feasible implementation, a pneumatic auxiliary pressure relief mechanism is further included, comprising: a main air passage vertically opened inside the transmission push rod; multiple branch air passages opened inside the lifting base plate, one end of each branch air passage being connected to the main air passage, and the other end being connected to the internal cavity of the corresponding vacuum suction cup; and an air intake valve assembly disposed on the transmission push rod and extending to the outside of the column for selectively connecting the main air passage to the external atmosphere.

[0008] In one feasible embodiment, the intake valve assembly includes: an intake pipe with one end fixedly connected to the side wall of the transmission push rod and communicating with the main air passage, and the other end extending to the outside of the column; a pressure relief button movably sleeved on the outer end of the intake pipe; a first air inlet opening on the side wall of the intake pipe; a second air inlet opening on the side wall of the pressure relief button; a return spring disposed inside the pressure relief button; under normal conditions, under the action of the return spring, the first air inlet and the second air inlet are offset from each other and in a sealed state; when the pressure relief button is pressed, the first air inlet and the second air inlet coincide to realize the air passage opening.

[0009] In one feasible implementation, the column is further provided with: an avoidance groove is opened vertically on the side wall of the column, the air intake pipe extends to the outside through the avoidance groove, and the air intake pipe can move up and down along the avoidance groove with the transmission push rod.

[0010] This application provides a police-use on-site cordon and isolation device. By integrating a top cap, base, insertion slot, triggering block, transmission push rod, transmission connecting rod, lifting base plate, and vacuum suction cups onto a column, and using the downward snap-fit ​​action of the isolation belt plug as the physical force for downward travel, the device's anchoring is transformed from traditional reliance on heavy counterweights or cumbersome footing to instantaneous, linked vacuum adsorption fixation. The triggering mechanism employs a triggering block, a fixed rotating shaft, and a movable pin to receive the lateral pressure deflection of the isolation belt plug. Utilizing the toggle-joint force amplification effect of the transmission connecting rod, the lateral displacement is stabilized and converted into a powerful downward vertical push on the transmission push rod. Ultimately, this pushes the lifting base plate, causing multiple vacuum suction cups to extend from the base and press against the ground to expel air. This system ensures that the deployment and locking actions of the device are completely synchronized, improving emergency response efficiency and significantly reducing the weight carried by individual soldiers. Furthermore, a pneumatic auxiliary decompression mechanism is formed by incorporating a main air path and branch air paths within the transmission push rod and lifting base plate. This mechanism, combined with an external air intake pipe and decompression button, forms a pneumatic linkage feedback chain. This transforms the resistance caused by the high-strength suction cups locking during disarmament, which makes it extremely difficult to pull out, into a button decompression conduction action. This allows external air to instantly rush into each vacuum suction cup array, breaking the vacuum. Police officers can then smoothly pull the plug upwards. Under the elastic force of the reset spring seat, the entire transmission mechanism automatically returns to its original position as the plug is pulled out, reducing operational resistance and improving operational consistency and equipment lifespan under different field conditions. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the police scene cordon and isolation device provided in an embodiment of the present invention at a first angle; Figure 2 This is a schematic diagram of the structure of the police scene cordon and isolation device provided in an embodiment of the present invention at a second angle; Figure 3 for Figure 1 A magnified schematic diagram of the structure at point A in the diagram; Figure 4 This is a schematic diagram of the transmission connecting rod provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the vacuum chuck provided in an embodiment of the present invention; Figure 6 This is a schematic diagram showing the locations of the branch gas path and the main gas path provided in an embodiment of the present invention.

[0012] In the diagram: 1. Column, 2. Top cap, 3. Insertion slot, 4. Isolation strip plug, 41. Extrusion protrusion, 6. Base, 7. Reset spring seat, 8. Clearance groove, 91. Air inlet pipe, 92. Pressure release button, 11. Trigger swing block, 12. Fixed rotating shaft, 13. Movable pin, 14. Transmission push rod, 15. Transmission connecting rod, 16. Lifting base plate, 17. Vacuum suction cup, 18. Branch air passage, 19. Main air passage. Detailed Implementation

[0013] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0014] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0015] Please see Figures 1 to 6 As shown in the figure, this application provides a police scene cordon and isolation device, including: a column 1, a top cap 2, a base 6, a plug slot 3, a trigger swing block 11, a transmission push rod 14, a transmission connecting rod 15, a lifting base plate 16, a vacuum suction cup 17, and a reset spring seat 7. A top cap 2 is set on the top of the column 1; a base 6 is set on the bottom of the column 1; a plug groove 3 is opened on the side wall of the column 1 for the isolation belt plug 4 of the adjacent device to be inserted from top to bottom; a trigger swing block 11 is set in the inner cavity of the column 1 inside the plug groove 3 for being deflected by the pressure of the isolation belt plug 4; a transmission push rod 14 is vertically sliding through the inner cavity of the column 1; the two ends of the transmission connecting rod 15 are rotatably connected to the lower end of the trigger swing block 11 and the upper end of the transmission push rod 14 respectively; a lifting base plate 16 is fixedly set at the bottom end of the transmission push rod 14 and located in the inner cavity of the base 6; multiple vacuum suction cups 17 are provided and set on the bottom surface of the lifting base plate 16; a reset spring seat 7 is set between the inner bottom surface of the base 6 and the lifting base plate 16.

[0016] The police scene cordon and isolation device provided in this application integrates the cordon line connection, mechanical strong anchoring, and pneumatic vacuum breaking and retraction into the same frame body in a fixed operation sequence. The top cap 2 is set on the top of the column 1 to ensure the realization of the built-in winding tape's conventional isolation function and to provide the cordon tape output; the base 6 is set at the bottom of the column 1, serving as a daily support base and providing a hidden housing for the overall suction cup anti-tipping mechanism; the insertion slot 3 is opened on the side wall of the column 1 to receive the isolation tape plug 4 of adjacent equipment, making the necessary snap-fit ​​action of the connection the direct power source for the subsequent lowering and pressing of the lifting base plate; The swing block 11 is set in the inner cavity of the column 1 inside the insertion slot 3, serving as a mechanical sensing contact point to convert the lateral squeezing force into a usable deflection angle; the transmission link 15 and the transmission push rod 14 are combined to carry out the central transmission and amplification of the longitudinal force, turning the small deflection into a powerful vertical thrust; the lifting base plate 16 cooperates with the vacuum suction cup 17 to distribute the central concentrated thrust to the periphery, completing the forced exhaust negative pressure fixation on the ground surface, and achieving high-strength grip force distributed at multiple points; the reset spring seat 7 is set between the inner bottom surface of the base 6 and the lifting base plate 16 to ensure that the transmission chain can automatically reverse and lift back when it needs to be retracted.

[0017] like Figure 2 As shown, in some examples, the trigger swing block 11 is further provided with: a fixed rotating shaft 12 and a movable pin 13. The fixed rotating shaft 12 is fixedly installed on the inner wall of the column 1, and the upper end of the trigger swing block 11 is rotatably connected to the fixed rotating shaft 12; the movable pin 13 is transversely inserted through the lower end of the trigger swing block 11, and one end of the transmission connecting rod 15 is rotatably connected to the movable pin 13; wherein, there are two trigger swing blocks 11 symmetrically arranged, and the movable pin 13 is inserted between the lower ends of the two trigger swing blocks 11. The isolation belt plug 4 is also provided with: a pressing protrusion 41 fixedly installed on the side of the isolation belt plug 4. When the isolation belt plug 4 is inserted into the insertion groove 3, the pressing protrusion 41 abuts against the trigger swing block 11 and applies a pressing force.

[0018] To further distribute the downward force of the plug onto the stable mechanical transmission structure, the trigger linkage adopts a combination of trigger swing block 11, fixed rotating shaft 12, movable pin 13 and extrusion protrusion 41. The fixed rotating shaft 12 locks the upper displacement freedom of the trigger swing block 11, forcing it to only produce a unidirectional arc deflection around the fixed rotating shaft 12 at the bottom. During the deep insertion process, the extrusion protrusion 41 of the isolation strip plug 4 with extrusion protrusion 41 acts like a wedge to forcibly separate and extrude inward the two symmetrically arranged trigger swing blocks 11, ensuring that the force application point is clear and the force is balanced and uniform. The movable pin 13 at the bottom rotates inward under the combined action of the two trigger swing blocks 11, outputting a balanced and unbiased horizontal thrust to the transmission link 15, ultimately allowing the normal transmission push rod to achieve an irreversible and inevitable downward transmission.

[0019] like Figure 3 As shown, in some examples, the police scene cordon and isolation device further includes a pneumatic auxiliary pressure relief mechanism, which includes a main air passage 19, branch air passages 18, and an air intake valve assembly. The main air passage 19 is vertically located inside the transmission push rod 14. Multiple branch air passages 18 are provided and located inside the lifting base plate 16. One end of each branch air passage 18 is connected to the main air passage 19, and the other end is connected to the internal cavity of the corresponding vacuum suction cup 17. The air intake valve assembly is mounted on the transmission push rod 14 and extends to the outside of the column 1. The intake valve assembly includes: an intake pipe 91, a pressure relief button 92, a first intake port (not shown in the figure), a second intake port (not shown in the figure), and a return spring (not shown in the figure). One end of the intake pipe 91 is fixedly connected to the side wall of the transmission push rod 14 and communicates with the main air passage 19, while the other end extends to the outside of the column 1. The pressure relief button 92 is movably sleeved on the outer end of the intake pipe 91. The first intake port is opened on the side wall of the intake pipe 91. The second intake port is opened on the side wall of the pressure relief button 92. The return spring is disposed inside the pressure relief button 92. The column 1 is also provided with: a clearance groove 8 opened vertically on the side wall of the column 1, through which the intake pipe 91 extends to the outside, and the intake pipe 91 can move up and down along the clearance groove 8 with the transmission push rod 14.

[0020] To truly solve the problem of the extremely difficult removal of high negative pressure suction cups during disarmament and relocation through pneumatic linkage, the pneumatic auxiliary pressure relief mechanism adopts a layout of main air passage 19, branch air passages 18, and air intake valve assembly. The main air passage 19 is concealed in the internal frame of the transmission push rod 14, providing a concealed ventilation channel without compromising the overall strength, and preventing external wind, rain, and mud from eroding and blocking it. Multiple branch air passages 18 are opened inside the lifting base plate 16 and extend radially, so that the atmosphere introduced into the same main air passage 19 can be distributed without dead angles and directly reach the internal cavity of each vacuum suction cup 17.

[0021] When the high-strength suction cup is locked to the ground for an extended period and police officers face evacuation, forceful pulling can easily damage the chassis rubber. The combination of a first air inlet, a second air inlet, and a return spring allows officers to press the pressure release button 92 with a single finger during disarming, causing the internal and external air inlets to align and open, instantly allowing outside air to rush into the bottom along the pipe network and break the vacuum. Under normal conditions, the return spring pushes the button out of the way, causing the two inlets to stagger and maintaining an absolute airtight seal. Simultaneously, the avoidance groove 8 can fully accommodate the downward displacement of the air inlet pipe 91 driven by the transmission push rod 14 when the base is fixed and pressed down, preventing interference and jamming of the outer shell. Furthermore, the entire negative pressure breaking process requires no electronic sensors or a complex inflation / deflation pump control system.

[0022] The working principle is as follows: In the normal, non-networked state, the reset spring seat 7 provides an upward lifting force, keeping the transmission push rod 14 in a high position. The lifting base plate 16 and vacuum suction cup 17 are completely hidden in the base 6, making the push and pull movement of the equipment extremely easy. When police officers are building a defense line, they pull out the isolation strip of the adjacent equipment and insert the isolation strip plug 4 into the insertion slot 3 on the side of the device from top to bottom. When the equipment moves and inserts, the upper extrusion protrusion 41 works first, forcefully pushing inward to trigger the swing block 11, causing it to deflect around the fixed rotating shaft 12. Subsequently, the lower movable pin 13 undergoes lateral displacement, which is directly converted into a huge downward linear thrust through the amplification of the transmission link 15. At the same time, this thrust forces the transmission push rod 14 to overcome the reset spring seat 7 at the bottom. The vacuum suction cups 17 are pressed down violently, simultaneously pressing down the lifting base plate 16 to cover the working ground. The air at the bottom is emptied instantly to form a strong vacuum suction, completing the wind and impact resistance grip and locking in seconds. When the mission is over and an emergency transfer and withdrawal is required, the police officer only needs to press the pressure release button 92 on the outside of the column 1 with one finger. The first air inlet and the second air inlet are aligned and connected. The external atmospheric pressure flows into the inner cavity of each vacuum suction cup 17 without resistance through the air inlet pipe 91, the main air passage 19 and the branch air passage 18, and the negative pressure at the bottom is immediately and completely eliminated. At this time, the suction resistance disappears, and the police officer can easily pull out the isolation belt plug 4, triggering the swing block 11 to lose the squeezing force. The entire pressing chain automatically rebounds back to its position under the push of the reset spring seat 7, and the vacuum suction cups 17 are returned to the base 6 for loading and transfer. The entire process integrates three major functions in sequence: plug-in warning, physical and mechanical large-tonnage anchoring, and pneumatic one-button automatic reset and withdrawal, forming a coherent, efficient, and self-adjusting rapid response deployment integrated operation that can adapt to sudden alarm situations.

[0023] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A police-use on-site cordon and isolation device, characterized in that, include: Column (1); A top cap (2) is provided on the top of the column (1); The base (6) is located at the bottom of the column (1); A plug slot (3) is provided on the side wall of the column (1) for the isolation belt plug (4) of the adjacent device to be inserted from top to bottom; Triggering the swing block (11), which is located in the inner cavity of the column (1) inside the plug slot (3), is used to deflect under the pressure of the isolation belt plug (4); The transmission push rod (14) is able to slide vertically through the inner cavity of the column (1); The transmission link (15) is rotatably connected at both ends to the lower end of the trigger swing block (11) and the upper end of the transmission push rod (14); The lifting base plate (16) is fixedly installed at the bottom end of the transmission push rod (14) and located in the inner cavity of the base (6); Vacuum suction cups (17) are provided in multiple forms and are disposed on the bottom surface of the lifting base plate (16); The reset spring seat (7) is located between the inner bottom surface of the base (6) and the lifting base plate (16).

2. The police scene cordon and isolation device according to claim 1, characterized in that: The triggering pendulum block (11) is also provided with: A fixed rotating shaft (12) is fixedly installed on the inner wall of the column (1), and the upper end of the trigger swing block (11) is rotatably connected to the fixed rotating shaft (12). A movable pin (13) is transversely inserted through the lower end of the trigger swing block (11), and one end of the transmission link (15) is rotatably connected to the movable pin (13). The triggering blocks (11) are provided in two symmetrically arranged, and the movable pin (13) passes between the lower ends of the two triggering blocks (11).

3. The police scene cordon and isolation device according to claim 1, characterized in that: The isolation strip plug (4) is also provided with: The extrusion protrusion (41) is fixedly disposed on the side of the isolation belt plug (4). When the isolation belt plug (4) is inserted into the plug groove (3), the extrusion protrusion (41) abuts against the trigger swing block (11) and applies extrusion force.

4. A police scene cordon and isolation device according to claim 1, characterized in that: It also includes a pneumatically assisted depressurization mechanism, which comprises: The main air passage (19) is opened vertically inside the transmission push rod (14); Branch air passages (18) are provided and are opened inside the lifting base plate (16). One end of each branch air passage (18) is connected to the main air passage (19), and the other end is connected to the internal cavity of the corresponding vacuum suction cup (17). An intake valve assembly, disposed on the transmission push rod (14) and extending to the outside of the column (1), is used to selectively connect the main air passage (19) to the outside atmosphere.

5. A police scene containment and isolation device according to claim 4, characterized in that: The intake valve assembly includes: The intake pipe (91) has one end fixedly connected to the side wall of the transmission push rod (14) and connected to the main air passage (19), and the other end extends to the outside of the column (1). The pressure relief button (92) is movably sleeved on the outer end of the air intake pipe (91); The first air inlet is located on the side wall of the air inlet pipe (91); The second air inlet is located on the side wall of the pressure relief button (92); A reset spring is located inside the pressure relief button (92); Under normal conditions, the first air inlet and the second air inlet are offset from each other and sealed under the action of the reset spring; when the pressure relief button (92) is pressed, the first air inlet and the second air inlet coincide to realize the air passage.

6. A police scene cordon and isolation device according to claim 5, characterized in that: The column (1) is also equipped with: The clearance groove (8) is vertically opened on the side wall of the column (1). The air intake pipe (91) extends to the outside through the clearance groove (8) and can move up and down along the clearance groove (8) with the transmission push rod (14).

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