RU2775920C1 - Folding protective barrier - Google Patents

Abstract

FIELD: public facilities.

SUBSTANCE: invention relates to means that provide an obstacle in crowded places. The folding protective barrier includes a spatial frame with a folding and unfolding mechanism of the flaps, containing elements connected in the form of a horizontally oriented hinged parallelogram, which performs the function of a folding and unfolding mechanism in the longitudinal direction of the vertical flaps (1, 2) of the specified frame. The front flaps (1) and rear flaps (2) in the horizontal projection are located respectively on different sides relative to the longitudinal axis of symmetry. Each front flap is made with a protective shield (5) installed with the possibility of unhindered folding of the flaps (1, 2) into the transport position and deploying these flaps into the working position corresponding to their maximally expanded position or intermediate position. The spatial frame is formed by crossed beams (3, 4) of the upper and lower belts, which are connected by ties (6, 7). The mechanism of folding and unfolding of the spatial frame is equipped with a mechanical or electric drive. The electrically driven version provides for a vertical frame (15) with sidewalls, which is connected to a gear motor (14). The deployment of the barrier flaps (1, 2) occurs from the action of an electric drive in different directions from the frame (15). When installing a folding barrier on the surface, supports (9) and a guide (8) acting as a support are used.

EFFECT: prevention of undesirable events due to deployment at the optimal time, control over undesirable events by creating a security zone between police officers and the crowd, ensuring stability while maintaining the possibility of crowd separation directly in front of the barrier with accordion doors; simplicity of use and low material consumption.

6 cl, 4 dwg

Description

The invention relates to means providing an obstacle in crowded places, in particular, at political rallies, demonstrations and serving to form a zone of prohibited access.

When creating such structures, the technical problem associated with the successful implementation of the function of activated (deployable) barriers, aimed at preventing, controlling and mitigating undesirable events in crowded places while ensuring the convenience and speed of deployment / folding of the barrier, as well as the formation of a line of defense, is overcome.

The description uses the terms:

- "line of defense", which is understood in horizontal projection as a straight or broken line; a security barrier is created along the line of defense;

- "barrier" and "enclosure" as synonyms depending on the context and citation below of the corresponding patent document containing one or another term.

The following collapsible protective barriers are known from the prior art.

In the description of the utility model patent RU 165134 (published on 10.10.2016), a folding protective fence is disclosed, including blocks connected in the longitudinal direction with the help of fasteners; each block consists of three parallelepiped-shaped body compartments connected in the transverse direction, while the body compartment is open at the top to allow loading of the filler. The blocks are connected in such a way that the line of defense formed by them can have in horizontal projection either a straight line or a broken line, the links of which are connected at an angle of 90 degrees.

The use of a protective fence is associated with a lengthy installation during the assembly of blocks, including additional time spent to fill the housing compartments with the necessary material to ensure the stability of the fence while maintaining their protective properties. Consequently, the long-term deployment of such a structure is undesirable in an unfavorable environment with a massive crowd of people and, from this point of view, raises doubts about its ability to prevent undesirable events in such an environment. The design is characterized by:

- high material consumption due to the need to use different materials to create directly construction blocks;

- the time spent on the installation of blocks and on filling the blocks with the necessary material.

Known barriers made in the form of box-type gabions, used, among other things, for security purposes in crowded places, disclosed in patent documents: WO 2008020247 (published on February 21, 2008), WO 2013104887 (published on 18.0.2013), WO 0040810 (published on 13.07 .2000), CN 103882876 (published 06/25/2014), WO 2012107745 (published 08/16/2012).

According to the indicated document numbers, the gabions that determine the type of barriers are made of various configurations in a horizontal projection, having a rectangular shape or, as in the descriptions of WO 2013104887, WO 0040810, CN 103882876, a shape made on the basis of a rectangle with opposite sides in the form of folding doors. "accordion". To give stability to the fence, the compartments are filled with sand, soil, gravel, stones. However, this circumstance is undesirable in a situation of active operations in a zone of mass congestion of people, firstly, from the point of view of the need for preliminary preparation of such material and its delivery to the place of deployment of the fence, and secondly, due to the increase in the optimal time for deploying the fence, provided that the compartments are filled with material. The assumption of a mechanized process of filling the compartments implies the involvement of additional funds in the process of deploying the fence.

Patent document BE 1016088 (published 03/07/2006) discloses a folding protective barrier (which is an improvement of the technical solution according to document BE 1012966) containing vertical rectangular flaps hingedly connected with the possibility of folding/deployment "accordion". For a fixed stable position, the barrier is equipped with horizontal rods connecting the open adjacent doors of the barrier on one side in the longitudinal direction of deployment. For this purpose, adjacent flaps at the place of their connection are provided with vertical ribs installed on one side of the "accordion" and protruding in the longitudinal direction relative to the longitudinal direction of the deployment of the barrier.

Said known barrier allows rapid deployment and results in the ability to disengage crowd density due to the presence of accordion doors. However, in order to maintain a stable position of the barrier when an undesirable impact is directed on the sashes, horizontal rods and vertical stiffeners do not prevent the barrier from tipping over. When exposed to the sashes on one side of the barrier, an overturning moment occurs, which exceeds the moment of stability due to the insufficient support area of one sash. Based on this, the conclusion follows about the insufficient barrier function of the known fence.

In the patent document WO2011141739 (published on 11/17/2011), selected as a prototype, describes the design of a protective folding fence, designed, among other things, for crowd control. Said enclosure includes a plurality of flaps (panels) pivotally connected so that, when deployed, the flaps form the enclosure itself and at selected intervals along the enclosure also form box-shaped compartments for filling with material providing structural rigidity and stability of the enclosure. In a horizontal projection, such compartments can be in the form of a square, rhombus, triangle, and the top of any figure is connected to the end of the corresponding sash. The layout of doors and compartments is provided in any convenient combination, including "accordion", providing the necessary configuration of the line of defense on the ground. Folding/deployment of the fence with the possibility of variations in the layout of the doors and compartments occurs with the help of extended spiral elements connecting the edges of the doors in the vertical direction.

Despite the undoubted advantages of the known design, associated primarily with the configuration of the fence and the ability to deploy both along a straight line and along a broken line consisting of two or three links, this fence exhibits some undesirable properties. In particular, the activation (deployment) of the fence is associated with the need to fill the compartments with a suitable material. As in the well-known analogues described above, the technical solution according to WO 2011141739 is characterized by a low degree of fulfillment by this barrier of the function of preventing undesirable events in the zone of active operations with a mass gathering of people. Thus, due to the need to ensure the stability of the barrier by filling the compartments with the delivered material, the time spent on transferring the fence to perform the barrier function exceeds the optimal time for such a transfer in conditions of active operations in a crowded area.

It should be noted that the technical solution according to WO 2011141739 adversely affects the preservation of security due to the fact that the sections of the barrier between the box-shaped compartments exclude the presence of a continuous "neutral zone", which in this description means the zone "without access" both from people from the crowd, and the police responsible for security, while the box-shaped compartments are designed to keep those on opposite sides of the barrier away.

In addition, the "human factor" cannot be ruled out in the manufacture of the barrier. In other words, there is a possibility of missing the formation of the necessary compartment, the absence of which will negatively affect the stability of the barrier.

Thus, the existing technical problem is to provide the following barrier functions of the activated barrier with the achievement of relevant technical results, namely:

- prevention of undesirable events from the point of view of safety due to the rapid deployment of the barrier;

- control of undesirable events by creating a "no man's land" between the police and the crowd, who are located on opposite sides of the barrier, also by ensuring its stability while maintaining the possibility of separating the crowd directly in front of the barrier with "accordion" doors.

In addition, the technical problem is solved by reducing the material consumption by reducing the consumption of dissimilar materials and simplifying the folding/deployment of the barrier.

The technical problem is resolved by the fact that the folding protective barrier includes a spatial frame of elements connected on the basis of a horizontally oriented articulated parallelogram, which acts as a mechanism for folding and deploying in the longitudinal direction of the vertical wings of the specified frame, which are front and rear wings, which are located in a horizontal projection, respectively on different sides relative to the longitudinal axis of symmetry, each front flap is made with a protective screen installed with the possibility of unhindered folding of the flaps into the transport position and deployment of the flaps to the working position corresponding to their maximum deployed position or intermediate position.

In the proposed barrier, the mechanism for folding and deploying the frame is equipped with a drive, while the frame elements are made in the form of several pairs of horizontal crossed beams and pairs of crossed beams mutually parallel to them, forming beams in the upper and lower chords, respectively, connected by ties, and the number of pairs of said beams of each chord divisible by two, these ties include central ties connecting the beams at their intersection, end ties connecting the ends of the extreme beams, which in horizontal projection are located on both sides of the transverse axis of symmetry, as well as the first and second middle ties through which in horizontal projection passes the longitudinal axis of symmetry and with which two middle front flaps and two middle rear flaps are connected, respectively, the outer and middle ties are made with outlets facing downwards, and the frame is equipped with a transverse guide in which the first middle tie is installed using its tie for the possibility of moving the specified tie from the action of the drive and the second middle tie by means of rigidly fixing its release, while the transverse guide is made in the form of two channels facing the shelves down, structurally designed to be able to be captured, for example, by the forks of a warehouse trolley and performing the function of a middle support for bearing on the surface of the installation, for bearing on the specified surface along the edges, the frame is provided with extreme supports, which are connected to the outlets of the extreme couplers.

The drive can be made mechanical, providing movement of the carriage in a longitudinal guide associated with two middle rear doors, and this connection is organized by means of two additional horizontal beams located at different heights, each of which is installed on the corresponding middle back door, while the protruding ends of the beams intersect in horizontal projection, and the horizontal longitudinal guide is located between the protruding ends of the lower and upper beams so that the end of the lower additional beam is pivotally connected to the corresponding end of this guide, the end of the upper additional beam is pivotally connected to the specified carriage; the upper additional beam at the intersection with the corresponding central brace and with the second middle brace is rigidly connected to the specified screeds, and the lower additional beam at the intersection with the corresponding central brace and with the specified second with the middle brace is pivotally connected to these screeds, and the mechanical drive for moving the carriage performed using a screw-nut transmission.

The drive can be made electric, and the frame is connected with a vertical frame installed in the transverse direction with sidewalls, the specified connection is organized by means of a transverse guide installed between the indicated sidewalls, and in order to be able to move the first middle screed, this screed is connected to a carriage driven by a geared motor using the “screw-nut” transmission, while the frame is made based on the condition of placing the wings in the folded position within the sidewalls of this frame.

The rear doors of the space frame are provided with a screen, the screen being made in the form of a perforated steel sheet, or a steel mesh, or a steel grating.

The essence of the folding protective barrier is revealed with the help of drawings:

- figure 1 - a barrier with 4 pairs of beams in the deployed position with an electric drive, top view;

- figure 2 - node with mechanical drive, general view;

- figure 3 - barrier in the deployed position with an electric drive, a general view in isometry;

- figure 4 - barrier in the folded position with an electric drive, top view.

The horizontally oriented articulated parallelogram underlying the folding/deployment mechanism of the spatial frame predetermines the formation of vertical flaps made in the form of front and rear flaps, indicated by positions 1 and 2, respectively.

Figure 1 clearly demonstrates that the wings 1, 2 in horizontal projection are located on different sides relative to the longitudinal axis of symmetry passing through the crossing points of the horizontal beams 3 and 4.

To perform a direct barrier function, the front flaps 1 are made with protective screens 5, while the rear flaps 2 can be made with or without screens, as shown in the drawings.

The frame elements include vertical ties 6, 7, which stiffen the barrier structure.

Ties 6 connect the ends of the respective paired beams of the upper and lower chords; from among these screeds:

- middle couplers 6 - these are the elements through which the transverse axis of symmetry passes in the horizontal projection;

- extreme couplers 6 - elements connecting the ends of the extreme beams, which in a horizontal projection are located on both sides of the transverse axis of symmetry.

Thus, the middle couplers 6 connect the corresponding ends of the paired beams 3 and 4 of the upper and lower chords of the frame, with the first middle coupler 6 connected to the middle front flaps 1, and to the second middle coupler - the middle back flaps 2.

Screeds 7 are central screeds connecting crossed beams 3 and 4 of the upper and lower chords at the intersections of said beams.

When using a folding barrier, an even number of crossed beams 3 and 4 of the upper / lower chord is provided. This technique is due to the need for the most rapid deployment of the barrier to perform a protective function, and this is possible when the wings 1 and 2 are deployed in different directions from the middle couplers 6, for example, using a mechanical drive or an electric drive. The folding of the barrier is carried out respectively from opposite sides to the middle ties 6.

It is quite obvious that the deployment of the same barrier from the outer couplers in one direction provides more time than the deployment of the barrier from the middle couplers 6 in both directions, as described above in the preferred embodiment. This factor is tangibly manifested in the area of mass congestion of people in the event of a need to quickly deploy an extended barrier, including, for example, 6 pairs of crossed beams.

To ensure unhindered folding/deployment of the barrier, which has at least protective screens 5 on the front flaps 1, it is advisable to position the crossed beams 3 and 4 so that the beams 3 of the upper chord, parallel to each other, having a slope in one direction in a horizontal projection, are located , for example, on top of the parallel beams 4 of the upper belt, having an inclination in the other direction. Beams 3 of the lower chord with an inclination in horizontal projection in the same direction as the beams 3 of the upper chord, it is advisable to place below the corresponding beams 4 of the lower chord. The following terms are used: "external beams 3" and "internal beams 4", taking into account their relative position in the vertical projection of the longitudinal or transverse direction.

With such a mutual arrangement of beams 3 and 4, it is rational to fulfill the following conditions for folding/deploying the barrier:

- rigid connection with couplers 6 and 7 of protective screens 5 installed in the wings between the internal beams 4;

- swivel with couplers 6 and 7 protective screens 5 installed in the wings between the outer beams 3;

- the middle couplers 6 are installed in the transverse guide 8 so that the first middle coupler 6, to which the middle front flaps 1 are connected, is installed with the possibility of moving along the guide 8, and the second middle coupler 6, to which the middle back flaps 2 are connected, is fixed.

The proposed folding barrier can be made with supports. So, the function of one support is performed by the transverse guide 8, which is two channels installed with the shelves down (not indicated by the position), while the supports include elements 9, which are the extreme supports (based on the heel) associated with the extreme ties 6. To be able to install supports, the middle screeds 6 and the outer screeds 6 are made with corresponding outlets (position not indicated), which are used for fixed fixing of the corresponding screed or, as it is assumed for the first middle screed 6, for its installation in the guide 8 with the possibility of moving this screed.

Based on the foregoing, it is clear that the proposed embodiment of the invention is not the only one possible to ensure the functioning of the folding barrier, since the constructive connection of the beams 3, 4 of the upper and lower chords with each other and with the screens 5 can be organized differently, resorting to the means known from the prior art, providing folding/deployment of the barrier, which is based on a horizontally oriented articulated parallelogram. However, preference is given to this option due to the simplicity of its implementation, with the possibility of achieving the optimal deployment time of the barrier flaps from its middle in different directions in the longitudinal direction.

So, the use of an articulated parallelogram located in a horizontal plane as a mechanism for folding/deploying a barrier with vertical doors leads to the achievement of the following technical results.

Deployment of the barrier occurs without the need for auxiliary materials designed to stabilize the device as a whole. When deploying a barrier based on an articulated parallelogram, there is no need to pre-connect adjacent flaps manually (using extended helical elements, as in the closest analogue of WO 2011141739) to create the necessary configuration of the barrier, based on the specific situation. So, when using, for example, the minimum number of pairs of beams, equal to two pairs, the shutters of the proposed barrier are folded/deployed when the crossed beams 3 and 4 are rotated relative to the central 7, middle 6 couplers and extreme couplers 6.

It should be noted that, while maintaining the configuration of the frontal (protective) flaps "accordion", as in the closest analogue of WO 2011141739 to separate the crowd, in the proposed invention, the crowd and the police are separated not only by the front flaps. Thanks to the connection of the barrier doors on the basis of a horizontally oriented articulated parallelogram behind the front doors (from the side of a mass gathering of people), a “neutral zone” of safety is formed, which is extremely necessary in the conditions of the onslaught of the crowd to prevent direct contact of the opposing sides.

At the same time, the “neutral zone” with the barrier wings deployed “accordionally” in the horizontal projection predetermines the support that prevents the barrier from tipping over in case of an undesirable impact on the front wings. Consequently, the barrier functions of the proposed fence as a stable structure are fully manifested during the period of direct force impact.

The folding barrier can be equipped with a mechanical drive or an electric drive, providing in the guide 8 a fixed position of the second middle screed 6 and a movable position of the first middle screed 6.

The mechanical drive option (Fig. 2) is based on the use of a “screw-nut” transmission that ensures the movement of the carriage 10 in the longitudinal guide 11 associated with the middle rear flaps 2. This connection is organized by means of two additional horizontal beams 12 located at different heights, each of which is installed on the corresponding middle rear sash 2. The beams 12 are made with outlets (position not indicated), which cross in a horizontal projection, while the longitudinal guide 11 is located between the outlets of the beams 12 so that the end of the lower additional beam 12 is pivotally connected to the corresponding end of this guide 11, the end of the upper additional beam 12 is pivotally connected to the carriage 10. For the possibility of turning the wings of the folding barrier, the upper additional beam 12 at the intersection with the corresponding central screed 7 and with the second middle screed 6 is rigidly connected to the specified screeds, and the lower additional b Alka at the intersection with the corresponding Central coupler 7 and with the specified second middle coupler 6 is connected to these couplers pivotally. The mechanical drive is equipped with a drive control handle 13 associated with the lead screw (not indicated by the position). The height of the longitudinal guide 11 is chosen based on the ease of use of this drive by the operator.

The variant of the electric drive is made using a worm gear motor 14, which provides control of the folding/deployment of the barrier in both directions from the middle racks 6 (Fig. 3). For this purpose, the folding barrier is made with a frame 15 having sidewalls (no position indicated). The width of the sidewalls of the frame 15 and its height are chosen to ensure that the flaps 1 and 2 are in the folding position within the specified sidewalls of the frame 15 to ensure the convenience of transporting the barrier, as well as its loading onto a vehicle and unloading the barrier (Fig. 4). Thus, the frame 15 for the barrier in the folded position performs the function of a casing that is open on both sides.

The housing of the motor-reducer 14 can be located on the outer side of the sidewall of the frame 15 facing the operators controlling the process of folding/deploying the barrier.

To install a folding barrier, for example, a hydraulic storage trolley with forks is used, which pick up and move the frame 15 with folded doors 1 and 2, leading the forks under the shelves of the channels of the transverse guide 8.

When the handle 13 of the mechanical drive is rotated, the carriage 10 moves along the guide 11 and at the same time the doors 1 and 2 turn from the middle ties 6 in both directions to the working position. Depending on the width of the span to be covered by the barrier, the working position of the leaves is selected: either the maximum deployed position, or an intermediate position. When deploying the flaps to the working position, the storage trolley brings the barrier to its original position, in which the extreme supports 9 and the guide 8, which acts as a support, interact with the surface on which the barrier is installed.

From the action of the electric drive, in a similar way, the wings 1 and 2 are deployed in different directions from the frame 15.

With a large span, for example, two or three barriers can be used for overlapping, depending on the number of leaves and their size.

The screen 5 can be made in the form of a perforated steel sheet, or a steel mesh, or a steel grating. The envisaged non-continuous view of the screen is due to the need for control over ongoing events by the police.

If it is necessary to strengthen - in the interests of the policemen - the protective properties of the barrier, the rear flaps 2 can also be made with screens 5.

The undoubted advantage of the proposed device lies in the most compact folding position of the wings 1 and 2, in which both the outer 3 and the inner 4 paired beams are almost parallel to each other without opening the wings even at a slight angle. This possibility is provided by the use of flat beams in the horizontal direction, between which screens 5 are installed with an offset to the longitudinal edge, having a thickness significantly less than the width of flat beams 3 and 4. Therefore, due to the selected dimensions of paired beams 3, 4, the thickness of screens 5 and mutual installation of screens 5 between the inner 3 and outer 4 beams - the folding of the barrier occurs as compactly as possible with the location of adjacent beams of the upper and lower chords parallel to each other.

The proposed folding barrier can be used as a module for organizing a line of defense, depending on the territory intended for separation by a security barrier. The line of protection can be made so that in a horizontal projection it has a straight or broken line, in particular, having a link rotation of 90 degrees.

The functionality of a collapsible safety barrier is determined by its ability to fold/deploy.

The application of the invention is carried out as follows.

In a compact position, the barrier is delivered to the installation site in a crowded area to perform the barrier function of preventing, controlling, mitigating undesirable events.

When performing a folding barrier with an electric drive, made with a gear motor 14 associated with the sidewall of the frame 15, such a frame is installed on a storage trolley, moved to the place of direct installation.

The activation of the barrier to the working position of the doors 1 and 2 is carried out by the operator, while the errors of the operator that affect the possibility of deploying the barrier are excluded, because the drive force determines the movement of the links (shutters in horizontal projection) that make up the hinged parallelograms of the upper and lower chords.

So, thanks to the swivel couplers 6 and 7 mutually parallel beams 3 and 4 of the upper and lower belts, the motor-reducer 14 leads to the movement of the first middle coupler 6 along the guide 8 (with the second coupler 6 rigidly installed) with the simultaneous deployment of the wings 1 and 2 of the frame to the working position determined by the operator "accordion".

After deploying the flaps, the operator ensures the contact of the supports 9 and the guide 8 that performs the function of the support with the installation surface of the barrier.

The non-continuous screens 5 lead to the possibility of constant observation of events by the police, excluding the reach for direct influence from the crowd, while the presence of a "no man's land" also prevents unwanted reach.

Thus, the use of a folding safety barrier:

- prevents undesirable events due to the possibility of deployment at optimal times, eliminating operator error;

- allows you to manage processes in a crowded area due to the presence of a security zone between the participants in the events;

- leads to disunity of the crowd due to the working position of the barrier with flaps deployed "accordion" while ensuring its stability.

At the same time, the proposed fence is characterized by ease of use, low material consumption due to the absence of the need to consume additional materials at the installation site.

Claims (6)

1. A folding protective barrier, including a spatial frame with a mechanism for folding and deploying the wings, containing elements connected in the form of a horizontally oriented hinged parallelogram with the ability to perform the function of folding and deploying the vertical wings of the frame in the longitudinal direction, while the vertical doors are front and rear doors , which in a horizontal projection are respectively located on different sides relative to the longitudinal axis of symmetry, wherein each front flap is made with a protective screen installed with the possibility of unhindered folding of the flaps into the transport position and deployment of the flaps to the working position corresponding to their maximum deployed position or intermediate position. 2. The barrier according to claim. 1, characterized in that the mechanism for folding and deploying the frame is equipped with a drive and a transverse guide, in which the first middle tie is installed using its release to allow the specified tie to move from the action of the drive and the second middle tie by rigidly fixing its release , while the transverse guide is made in the form of two channels, with the shelves facing down, designed to be gripped by a forklift and performing the function of a middle support for resting on the surface of the installation, and for resting on the specified surface along the edges, the spatial frame has extreme supports that are connected to the outlets of the extreme screeds. 3. The barrier according to claim. 2, characterized in that the drive is made mechanical, ensuring the movement of the carriage in a longitudinal guide associated with two middle rear wings, and this connection is organized by means of two additional horizontal beams located at different heights, each of which is installed on the corresponding the middle rear sash, while the protruding ends of the beams intersect in a horizontal projection, and the horizontal longitudinal guide is located between the protruding ends of the lower and upper additional beams so that the end of the lower additional beam is pivotally connected to the corresponding end of this guide, the end of the upper additional beam is pivotally connected to the specified carriage; the upper additional beam at the intersection with the corresponding central tie and with the second middle tie is rigidly connected to the specified ties, and the lower additional beam at the intersection with the corresponding central tie and with the specified second middle tie is pivotally connected to these ties, and the mechanical drive for moving the carriage is made using a screw-nut transmission. 4. The barrier according to claim 2, characterized in that the drive is made electric, while the frame is connected to a vertical frame installed in the transverse direction, made with sidewalls, this connection is organized by means of a transverse guide installed between the sidewalls, and for the possibility of moving the first middle screed this screed is connected to a carriage driven by a gear motor using a “screw-nut” transmission, while the frame is made based on the condition of placing the wings in a folding position within the sidewalls of this frame. 5. The barrier according to claim. 1, characterized in that the rear flaps of the frame are equipped with a screen. 6. The barrier according to claim 1 or 5, characterized in that the screen is made in the form of a perforated steel sheet, or a steel mesh, or a steel grid.

Images