Camouflage net rack retracting device and method

Abstract

The invention provides a camouflage net frame folding device and a camouflage net frame folding method. The problems that an existing camouflage net is not convenient to use and consumes time and labor in the erecting and folding process are solved. The camouflage net rack folding device comprises two groups of vertical ladder mechanisms, a group of inclined strut mechanisms and a power supply; each vertical ladder mechanism comprises a main body fixing frame, a first supporting ladder, a second supporting ladder, a winding assembly, a liftable supporting rod assembly, a pulley assembly and two limiting guide assemblies; the whole inclined strut mechanism is of a telescopic and foldable structure and comprises a main body supporting assembly and an inclined plane supporting assembly. The camouflage net rack folding device is of an external type, compared with independent existence of the target to be camouflaged, the original structure of the target to be camouflaged does not need to be changed, the semi-automatic function is achieved, and an operator can be assisted in rapidly completing erecting and folding operation of the camouflage net in a remote control mode.

Description

Technical Field

[0001] The invention belongs to the technical field of safety protection, and in particular relates to a camouflage grid collection device and a collection method. Background Art

[0002] Camouflage nets are an important type of camouflage barrier equipment, which are widely used in military and civilian fields. In military applications, camouflage nets are known as "protective umbrellas" on the battlefield. They are mainly used to conceal important targets such as weapons and equipment, military facilities, and reduce the probability of being discovered by enemy optical, infrared, radar and other multi-spectral reconnaissance methods, thereby improving battlefield survivability and combat effectiveness. In the civilian field, with the popularization of camouflage technology and the increasing demand for environmental beautification, the application scope of camouflage nets has been continuously expanded, such as scene layout of film and television bases, landscape construction of theme parks, sunshade and heat insulation of home decoration, protection of exhibits in military exhibitions, construction of photography backgrounds, and covert observation of bird watching activities.

[0003] The core function of a camouflage net is to shield and camouflage the target so that it blends in with the surrounding environment, thereby reducing the risk of detection and identification. However, in actual applications, the erection and withdrawal of camouflage nets face many technical difficulties. First, due to the large differences in size, shape and structure of the target to be camouflaged, the required camouflage net area is usually large, and a variety of specifications and types of camouflage nets need to be used in combination, which increases the complexity of the operation. Secondly, large camouflage nets are heavy and need to reach a certain height when erected, which places high demands on the physical strength and skills of the operators. In addition, during the erection process of a camouflage net with a skeleton grid, the gap on the bottom surface is easy to hook with the protruding parts of the target to be camouflaged, which not only increases the difficulty of operation, but may also cause damage to the camouflage net and affect the camouflage effect.

[0004] At present, the erection and removal of camouflage nets mainly rely on manual operation or the use of simple supporting poles and other auxiliary tools. This method has obvious limitations: first, it requires a lot of manpower, which may cause difficulties in personnel deployment in certain special scenarios; second, the operation efficiency is low and it is difficult to meet the needs of rapid and mobile operations. These problems seriously restrict the actual use of camouflage nets and make it difficult to meet the needs of rapid camouflage operations.

[0005] Therefore, there is an urgent need for a device that can easily and simply set up and remove a camouflage net, reduce the complexity and manpower and time costs of setting up and removing the camouflage net, and improve work efficiency. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that the existing camouflage net erection and withdrawal process is not convenient to use and is time-consuming and labor-intensive, and to provide a camouflage net erection and withdrawal device and method.

[0007] A camouflage grid collection device, which is special in that it includes two sets of straight ladder mechanisms, a set of diagonal support mechanisms and a power supply (for the convenience of operation, the power supply used in this application is a mobile UPS power supply);

[0008] Each set of straight ladder mechanisms includes a main body fixing frame, a first supporting ladder, a second supporting ladder, a winding assembly, a lifting and lowering support rod assembly, a pulley assembly and two limiting guide assemblies;

[0009] The main body fixing frame is a frame structure, the height of which is higher than the height of the target to be camouflaged, and the bottom is provided with universal wheels for facilitating the movement of the main body fixing frame, which is divided into a first area, a second area and a third area from bottom to top; wherein, a horizontal installation platform is provided near the bottom of the first area, and an auxiliary installation plate is vertically provided on one side of the first area;

[0010] The liftable support rod assembly is vertically arranged in the third area, on the same side as the auxiliary mounting plate;

[0011] Two support ladders (i.e., the first support ladder and the second support ladder) are symmetrically installed on both sides of the third area through the limit guide assembly, and the symmetrical installation is conducive to the reliability of the straight ladder mechanism when in use; wherein, the first support ladder and the auxiliary mounting plate are located on the same side, and are used to support the main body fixing frame, and the second support ladder is used for operators to board the main body fixing frame; both support ladders can slide up and down along the limit guide assembly, and can form an angle with the main body fixing frame under the action of the limit guide assembly, so as to facilitate erection and withdrawal; when both support ladders slide to the highest point of the limit guide assembly, the two support ladders can be retracted into the frame of the main body fixing frame, so as to facilitate transportation and storage; when both support ladders slide to the lowest point of the limit guide assembly and the angle with the main body fixing frame is the largest (the largest angle here refers to the largest angle within the range allowed by the limit), the ladder feet of the two support ladders can just be supported on the horizontal ground;

[0012] The reeling assembly includes a cable reel and two wire rope reeling assemblies; the two wire rope reeling assemblies are arranged side by side on a horizontal mounting platform, both are connected to a mobile power source through the cable reel, and can be controlled by remote control;

[0013] The pulley assembly includes two sets of top pulleys and two sets of bottom pulleys; the two sets of top pulleys are arranged at the top of the liftable strut assembly and can adjust the height along with the liftable strut assembly, and the two sets of bottom pulleys are fixedly arranged on the inner side of the auxiliary mounting plate, and their main function is to maintain the wire rope lead-out direction in the wire rope retracting assembly, and the top pulleys and the bottom pulleys are located on the same vertical line;

[0014] The steel wire rope of one of the steel wire rope retracting and releasing assemblies is led out through a group of bottom pulleys and a group of top pulleys in sequence, and a hook is provided at the end of the steel wire rope for dragging the camouflage net; the steel wire rope of the other steel wire rope retracting and releasing assemblies is led out through another group of bottom pulleys and another group of top pulleys in sequence; that is to say: the two steel wire rope retracting and releasing assemblies in each straight ladder mechanism have different functions, one steel wire rope retracting and releasing assembly is responsible for managing the steel wire rope for dragging the camouflage net, and the other steel wire rope retracting and releasing assembly is responsible for managing the steel wire rope for supporting the camouflage net;

[0015] In order to facilitate carrying and management, the overall diagonal support mechanism is a retractable and foldable structure, which includes a main support assembly and an inclined support assembly; the main support assembly can firmly support the inclined support assembly; when the inclined support assembly is installed in place, its bottom end is supported on the horizontal ground, and the top end is fixedly connected to the target to be camouflaged and is used to fix the wire rope of another wire rope retracting assembly, which cooperates with it to support the camouflage net to prevent the camouflage net from getting hooked on the protruding part of the target to be camouflaged during dragging.

[0016] Furthermore, each limiting guide assembly includes two guide shafts, two linear bearings and two limiting blocks;

[0017] Two guide shafts are vertically installed in the third area main body fixing frame at a position with the same width as the support ladder; two linear bearings are respectively mounted on the two guide shafts; and two limit blocks are respectively arranged on the outsides of the two linear bearings;

[0018] The top end of the support ladder is hinged between the linear bearing and the limit block, and can move within the limit range of the limit block to form an angle with the main fixed frame, that is, the support ladder can be opened at a certain angle relative to the main fixed frame, opened when in use, and closed when not in use.

[0019] Furthermore, in order to facilitate installation, the linear bearing and the limit block are integrated parts, and a hinge position for supporting the top end of the ladder is left between the two.

[0020] Furthermore, the bottom pulley adopts a fixed pulley, which is conducive to the stable guidance of the led-out steel wire rope; the top pulley adopts a universal pulley, which can be suitable for camouflaged targets and camouflage nets of different sizes.

[0021] Furthermore, the liftable strut assembly includes a guide rail and a strut, the guide rail is vertically installed in the middle of one side of the third area, the strut can slide up and down in the guide rail to adjust the height, and the liftable strut assembly can be electrically controlled.

[0022] Further, the slope support assembly includes a foldable and retractable slope support frame and a plurality of retractable support rods;

[0023] The foldable and retractable inclined plane support frame includes two parallel inclined rods, which are connected by a plurality of retractable cross rods arranged at intervals and perpendicular to the inclined rods. Under the action of the retractable cross rods, the distance between the two inclined rods is adjustable, that is, the overall width of the inclined plane support assembly is adjustable; both ends of the retractable cross rods near the upper ends of the inclined rods extend downward to form mounting arms; a plurality of retractable support rods are detachably mounted between two adjacent retractable cross rods, parallel to each other and near the lower ends of the inclined rods, which can reinforce the inclined plane support assembly and provide certain support for the camouflage net, and are conducive to smooth and stable dragging;

[0024] The diagonal rod is divided into two parts from the middle, including an upper diagonal rod and a lower diagonal rod. The upper diagonal rod and the lower diagonal rod are connected by a folding assembly and can be folded and retracted. The folding assembly includes two folding arms hinged together at the ends, which has a simple structure and is easy to use.

[0025] The upper end of the upper oblique rod is a buckle design, which is used to reliably overlap the oblique rod on the tail of the target to be camouflaged; the lower end of the lower oblique rod is preferably provided with a certain curvature relative to the entire main body of the oblique rod, so as to increase its contact area with the ground and improve the support stability.

[0026] Furthermore, the main support assembly includes two retractable vertical support rods and two horizontal support rods; the two vertical support rods and the two horizontal support rods are assembled one by one (that is, the vertical support rods and the horizontal support rods are used in pairs), and are located on both sides of the inclined support assembly;

[0027] The upper end of the vertical support rod is arc-shaped with a certain curvature, connected to the mounting arm at the upper end of the oblique rod, and can rotate around the connection, and the lower end is connected to one end of the horizontal support rod;

[0028] The other end of the horizontal support rod is connected to the lower end of the oblique rod.

[0029] Furthermore, the main fixing frame is formed by overlapping and fixing light aluminum profiles, and the connecting parts are made of light aluminum profiles; the auxiliary installation plate is made of thin aluminum plate;

[0030] The diagonal bracing mechanism is formed by overlapping stainless steel thin tubes, aluminum alloy round tubes and magnesium alloy round tubes.

[0031] At the same time, the present invention also provides a method for erecting a camouflage net using the camouflage net erection device, which is special in that it includes the following steps:

[0032] Step 1: Preliminary preparation

[0033] Push the two sets of vertical ladder mechanisms to the appropriate position in front of the target, lock the universal wheels, open the two support ladders, and turn on the power supply;

[0034] Place the diagonal support mechanism behind the target, lift it up and unfold it, fix the upper end of the diagonal support mechanism to the tail of the target, and support the lower end on the horizontal ground;

[0035] Step 2: Pull the four steel wires of the two sets of straight ladder mechanisms to the tail of the target; two of the steel wires with hooks are parallel to each other and hung at the front end of the unfolded camouflage net to drag the camouflage net; the other two steel wires cross each other and are fixed to the upper end of the diagonal support mechanism to support the camouflage net;

[0036] Step 3: Start the wire rope retracting and releasing assembly to tighten the two wire ropes supporting the camouflage net, and gradually retract the two wire ropes dragging the camouflage net to drag the camouflage net;

[0037] Step 4: After the camouflage net is dragged to the appropriate position, remove the wire rope hook that drags the camouflage net, untie the two wire ropes supporting the camouflage net and retract them to the straight ladder mechanism;

[0038] Step 5: Remove the diagonal support mechanism from the tail of the target;

[0039] Step 6: Hang the camouflage net on the hook on the target's body to complete the camouflage.

[0040] The method for withdrawing the camouflage net using the camouflage net frame withdrawing device is special in that it comprises the following steps:

[0041] Step 1: Preliminary preparation

[0042] Push the two sets of ladder mechanisms to the appropriate position behind the target (the distance between the ladder mechanism and the rear side of the target must be sufficient to completely drag the camouflage net off the target), lock the universal wheels, open the two support ladders, and turn on the power;

[0043] Remove the camouflage net from the hooks on the target's body;

[0044] Step 2: Hang two steel wire ropes (i.e. steel wire ropes with hooks) used for dragging the camouflage net in two sets of straight ladder mechanisms parallel to each other at the rear end of the camouflage net;

[0045] Step 3: Start the wire rope retracting and releasing assembly to gradually retract the two wire ropes used to drag the camouflage net;

[0046] Step 4: After the camouflage net is dragged down from the target, remove the wire rope hook that is dragging the camouflage net, and retract the wire rope to the vertical ladder mechanism to complete the withdrawal of the camouflage net.

[0047] The advantages of the present invention are:

[0048] 1. The camouflage net erection and retraction device of the present invention is an external type. Compared with the target to be camouflaged (such as a vehicle), it exists independently and does not need to change the original structure of the target to be camouflaged. It has a semi-automatic function and can assist the operator to quickly complete the erection and retraction of the camouflage net by remote control. The theoretical erection time is less than 10 minutes, the retraction time is less than 7 minutes, and the number of operators is no more than 5 people. In the face of certain special scenes, 3 operators can also complete the operation. In this way, it can not only solve the problem of difficult personnel deployment, but also greatly improve the working efficiency.

[0049] 2. The straight ladder mechanism in the camouflage net frame collection device of the present invention is constructed by profiles and assisted by a supporting ladder, which is stable and lightweight; each straight ladder mechanism has two built-in wire rope collection and release components, the wire rope led out of one is used to drag the camouflage net, and the wire rope led out of the other is used to support the camouflage net. The design is ingenious, not only suitable for camouflage nets of various sizes, but also can avoid hooking between the bottom surface of the camouflage net and the protruding part of the camouflage target. Not only is the operation difficult, but also can avoid damage to the camouflage net and affect the camouflage effect.

[0050] 3. The diagonal bracing mechanism in the camouflage net erecting device of the present invention is formed by a mixture of stainless steel thin tubes, aluminum alloy round tubes, and magnesium alloy round tubes, and adopts a folding design, which can be folded and stored, and is easy to carry and place in a vehicle.

[0051] 4. The camouflage net frame collection device of the present invention has the characteristics of simple structure, convenient operation, strong adaptability, lightweight design, etc. It can significantly reduce the complexity of setting up and withdrawing the camouflage net as well as the manpower and time costs, and meet the needs of rapid camouflage operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 The schematic diagram of the layout of the camouflage grid receiving device is shown in Figure 1. Figure 1 , (b) is a schematic diagram Figure 2 ;

[0053] Figure 2 is a schematic diagram of a vertical ladder mechanism; (a) is a schematic diagram of Figure 1 , (b) is a schematic diagram Figure 2 , (c) is for illustration Figure 3 (Dimensions in mm);

[0054] Figure 3 It is a schematic diagram of the top structure of the vertical ladder mechanism;

[0055] Figure 4 It is a structural schematic diagram of the guide shaft of the straight ladder mechanism;

[0056] Figure 5 This is a structural diagram of the installation platform at the horizontal bottom of the vertical ladder mechanism;

[0057] Figure 6 Schematic diagram of the diagonal brace mechanism; (a) is a structural diagram, and (b) is a dimension diagram (dimension unit: mm)

[0058] Figure 7 It is a schematic diagram of the connection mode of various parts of the diagonal bracing mechanism;

[0059] Figure 8 It is a schematic diagram of the structure after the diagonal bracing mechanism is folded and contracted;

[0060] Fig. 9 It is a schematic diagram of the folding component in the diagonal support mechanism.

[0061] The reference numerals are as follows:

[0062] 1-straight ladder mechanism; 2-diagonal support mechanism; 3-main body fixing frame; 4-first support ladder; 5-second support ladder; 6-liftable support rod assembly; 7-top pulley; 8-guide shaft; 9-limit block; 10-linear bearing; 11-wire rope retracting assembly; 12-cable reel; 13-bottom pulley; 14-foldable and retractable inclined support frame; 15-retractable support rod; 16-folding assembly; 17-auxiliary mounting plate; 18-travel universal wheel, 19-horizontal mounting platform, 20-vertical support rod, 21-horizontal support rod, 22-diagonal rod, 23-retractable cross rod. DETAILED DESCRIPTION

[0063] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0064] like Figure 1 As shown, the camouflage net frame collection device designed by the present invention includes two sets of straight ladder mechanisms, one set of diagonal support mechanisms and a 220V mobile UPS power supply. The straight ladder mechanism is used to drag the camouflage net; the diagonal support mechanism is used for lifting and guiding the camouflage net during the pulling process.

[0065] like Figure 2-4As shown, each set of straight ladder mechanism includes a main body fixed frame, a first support ladder, a second support ladder, a winding assembly, a liftable support rod assembly, a pulley assembly and two limit guide assemblies, with an overall weight of about 150Kg. The main body fixed frame is a frame structure, and its height is higher than the height of the target to be camouflaged. The bottom is provided with a universal wheel for facilitating the movement of the main body fixed frame. It is divided into a first area, a second area and a third area from bottom to top; wherein, a horizontal mounting platform is provided near the bottom of the first area, and an auxiliary mounting plate is vertically provided on one side of the first area. The first support ladder and the second support ladder are symmetrically installed on both sides of the third area through the limit guide assembly, and the first support ladder and the auxiliary mounting plate are located on the same side, which are used to support the main body fixed frame to prevent tilting during use; the second support ladder is used for operators to board the main body fixed frame, which is convenient for observation during use. Both support ladders can slide up and down along the limit guide assembly, and can form an angle with the main body fixed frame under the action of the limit guide assembly to facilitate erection and withdrawal. When both support ladders slide to the highest point of the limit guide assembly, the two support ladders can be retracted into the frame of the main body fixing frame for easy transportation and storage; when both support ladders slide to the lowest point of the limit guide assembly and the angle with the main body fixing frame is the largest, the ladder feet of the two support ladders can just be supported on the horizontal ground. Each limit guide assembly includes two guide shafts, two linear bearings and two limit blocks; the two guide shafts are vertically installed in the third area of ​​the main body fixing frame at the same width as the support ladder; the two linear bearings are respectively mounted on the two guide shafts; the two limit blocks are respectively arranged on the outside of the two linear bearings; in addition, in order to facilitate installation, the linear bearings and the limit blocks in this embodiment are integrated parts, and a hinge position of the top end of the support ladder is left between the two. The top end of the support ladder is hinged here by a pin shaft. The support ladder can move within the limit range of the limit block and form an angle with the main body fixing frame, that is, the limit block limits the support ladder opening angle. The support ladder can be stably opened when in use and retracted into the main body fixing frame when not in use. The liftable strut assembly is also vertically arranged in the third area, including a guide rail and a strut. The guide rail is vertically installed in the middle of one side of the third area. The strut can slide up and down in the guide rail. Its length is about 1800mm. In order to adapt to the target height, it can be slightly adjusted with an adjustment range of ±500mm.

[0066] like Figure 5As shown, the winding assembly includes a cable reel and two wire rope reeling assemblies; the two wire rope reeling assemblies are arranged side by side on a horizontal mounting platform, and are both connected to the mobile UPS power supply through the cable reel, and can be controlled by remote control. The pulley assembly includes two sets of top pulleys and two sets of bottom pulleys; the two sets of top pulleys are universal pulleys, which are arranged at the top of the liftable support rod assembly and can adjust the height along with the liftable support rod assembly; the two sets of bottom pulleys are fixed pulleys, which are fixedly arranged on the inner side of the auxiliary mounting plate, and their main function is to maintain the wire rope lead-out direction in the wire rope reeling assembly, and the top pulley and the bottom pulley are located on the same vertical line. The wire rope of one of the wire rope reeling assemblies is led out through a set of bottom pulleys and a set of top pulleys in turn, and a hook is arranged at the end of the wire rope for dragging the camouflage net; the wire rope of the other wire rope reeling assembly is led out through another set of bottom pulleys and another set of top pulleys in turn.

[0067] like Figure 6-Figure 9 As shown, the diagonal support mechanism is a retractable and foldable structure, which includes a main support assembly and an inclined support assembly; the main support assembly can stably support the inclined support assembly; the inclined support assembly includes a set of foldable and retractable inclined support frames and six retractable support rods; the foldable and retractable inclined support frame is made of a mixed overlap of stainless steel thin tubes, aluminum alloy round tubes, and magnesium alloy round tubes, including two parallel inclined rods, and the two inclined rods are connected by six retractable cross rods that are arranged at unequal intervals (two each at the top, middle, and bottom) and perpendicular to the inclined rods. Under the action of the retractable cross rods, the two inclined rods The distance between the rods is adjustable, and both ends of the retractable crossbar near the upper end of the diagonal rod extend downward to form a mounting arm; the diagonal rod is divided into two parts from the middle, including an upper diagonal rod and a lower diagonal rod, which are connected by a folding assembly and can be folded and shrunk to reduce the volume of the diagonal support, which is convenient for storage and transportation of the support frame. The minimum size after contraction is 3500mm×2100mm, and the maximum size after unfolding is 5200mm×2500mm. After unfolding, it is higher and wider than the camouflaged target; the folding assembly is connected by two hinged folding arms, with a simple structure and convenient use. The upper end of the upper diagonal rod is a buckle design, which is used to reliably overlap the diagonal rod on the tail of the target to be camouflaged, and the lower end of the lower diagonal rod is preferably with a certain curvature relative to the entire main body to increase its contact area with the ground and improve the support stability. The six retractable support rods are detachably installed (such as snap-on installation) between the two retractable cross bars near the lower end and are parallel to each other. They can reinforce the inclined support assembly and provide certain support for the camouflage net, which is conducive to smooth and stable dragging. When in use, they can be quickly removed and extended to a certain length to prop up the camouflage net and assist in the erection and withdrawal of the camouflage net. The retracted length is 1600mm and the maximum size after unfolding is 4200mm.

[0068] The main support assembly includes two retractable vertical support rods and two horizontal support rods; the two vertical support rods and the two horizontal support rods are assembled one by one and are separated on both sides of the inclined support assembly. The upper end of the vertical support rod is arc-shaped with a certain curvature, connected to the mounting arm at the upper end of the inclined rod, and can rotate around the connection, and the lower end is connected to one end of the horizontal support rod, and the other end of the horizontal support rod is connected to the lower end of the inclined rod. When the inclined support assembly is installed in place, its bottom end is supported on the horizontal ground, and the top end is fixedly connected to the target to be camouflaged and is used to fix the wire rope of another wire rope retracting assembly, and cooperates with it to support the camouflage net to prevent the camouflage net from getting hooked on the protruding part of the target to be camouflaged during the dragging process.

[0069] In order to verify the operating efficiency of the camouflage grid collection device designed by the present invention, the following tests were conducted:

[0070] During the test, Dongfeng EQ1120GA vehicle was selected, with a vehicle height of 3450mm and an internal length of 4950mm. In order to ensure that the camouflage net at the front of the vehicle can be pulled up normally and that the retracted ladder mechanism can be placed inside the carriage, the overall height of the ladder mechanism is designed to be approximately 4550mm (±500mm); in order to reduce the space occupied by the ladder mechanism during transportation and to meet the requirements of placement in the carriage, the size of the bottom of the ladder mechanism after the support ladder is retracted is designed to be approximately 650mm×650mm, and the size of the bottom of the ladder mechanism after the support ladder is extended is approximately 4000mm×650mm. The overall size of the ladder mechanism is as follows: Figure 2 shown.

[0071] The two sets of wire rope retracting and releasing components are independently controlled by remote control. The specific parameters are shown in Table 1:

[0072] Table 1

[0073]

[0074] The maximum extension lengths of the two sets of wire rope retracting and releasing assemblies are 30m and 20m respectively. The wire rope retracting and releasing assembly with a maximum extension length of 30m is used to drag the camouflage net, and the wire rope retracting and releasing assembly with a maximum extension length of 20m is used to support the camouflage net. The wire rope in the wire rope retracting and releasing assembly is led out from the support rod and the top pulley in the third area of ​​the straight ladder mechanism along the bottom pulley in sequence, and the retraction and release of the wire rope is controlled by remote control.

[0075] The overall dimensions of the diagonal brace mechanism are as follows: Figure 6As shown, during the structural design process, referring to the size of the rear compartment of the Dongfeng EQ1120GA vehicle, the height of the vehicle is 3450mm and the width of the vehicle is 2495mm. In order to avoid the camouflage net from being hooked on the top of the compartment as much as possible during the dragging process, so that the camouflage net can be hung over the top of the compartment, the overall height of the diagonal bracing mechanism is designed to be 3600mm. At the same time, to prevent the net from scratching the side of the compartment, the overall design size of the side width of the diagonal bracing mechanism is 2550mm. During the erection of the camouflage net, one person is arranged on each side to perform auxiliary work to ensure the smooth hanging of the camouflage net during the dragging process.

[0076] In order to ensure the matching of the dimensions of the diagonal bracing mechanism during use and the placement of the diagonal bracing mechanism after it is folded, some structures in the diagonal bracing mechanism adopt a telescopic structure or a folding mechanism to facilitate the adjustment of the dimensions of the diagonal bracing mechanism and its storage and folding placement; the adjustment length between the two diagonal rods is 450mm, which is used to reduce the space volume occupied when the diagonal bracing mechanism is placed. The original available width in the car is 2300mm, and the unfolded width of the diagonal bracing mechanism is 2550mm. Through the compression between the two diagonal rods, the actual occupied width of the diagonal bracing mechanism is compressed to about 2100mm; the connection between the horizontal support rod and the rotatable vertical support rod is detachable. During the contraction of the diagonal bracing mechanism, the horizontal support rod is removed, and the vertical support rod and the diagonal bracing inclined surface are rotated to a unified plane; the various components are connected by screws, and their main function is to ensure the stability of the entire diagonal bracing mechanism. The original length of the inclined plane of the diagonal brace mechanism is about 5200mm, and the length inside the carriage is 4950mm. In order to meet the requirements of placing the diagonal brace mechanism inside the carriage, the inclined plane of the diagonal brace is designed to be foldable. After folding, the length is about 3500mm, so that it can be placed inside the carriage. Figure 8 shown.

[0077] According to the existing structure of the camouflage net erection and withdrawal device and the applicable vehicles, a more detailed analysis of the erection and withdrawal process of the camouflage net was carried out, and the time required was estimated. The main steps and specific simulation time are as follows:

[0078] The method for erecting a camouflage net using the camouflage net erection device comprises the following steps:

[0079] Step 1: Preliminary preparation

[0080] Push the two sets of vertical ladder mechanisms to the appropriate position in front of the target, lock the universal wheels, open the two support ladders, and turn on the power supply;

[0081] Place the diagonal support mechanism behind the target, lift it up and unfold it, fix the upper end of the diagonal support mechanism to the tail of the target, and support the lower end on the horizontal ground;

[0082] Step 2: Pull the four steel wires of the two sets of straight ladder mechanisms to the tail of the target; two of the steel wires with hooks are parallel to each other and hung at the front end of the unfolded camouflage net to drag the camouflage net; the other two steel wires cross each other and are fixed to the upper end of the diagonal support mechanism to support the camouflage net;

[0083] Step 3: Start the wire rope retracting and releasing assembly to tighten the two wire ropes supporting the camouflage net, and gradually retract the two wire ropes dragging the camouflage net to drag the camouflage net;

[0084] Step 4: After the camouflage net is dragged to the appropriate position, remove the wire rope hook that drags the camouflage net, untie the two wire ropes supporting the camouflage net and retract them to the straight ladder mechanism;

[0085] Step 5: Remove the diagonal support mechanism from the tail of the target;

[0086] Step 6: Hang the camouflage net on the hook on the target's body to complete the camouflage.

[0087] The method for withdrawing the camouflage net using the camouflage net collection device comprises the following steps:

[0088] Step 1: Preliminary preparation

[0089] Push the two sets of ladder mechanisms to the appropriate position behind the target (the distance between the ladder mechanism and the rear side of the target must be sufficient to completely drag the camouflage net off the target), lock the universal wheels, open the two support ladders, and turn on the power;

[0090] Remove the camouflage net from the hooks on the target's body;

[0091] Step 2: Hang two steel wire ropes (i.e. steel wire ropes with hooks) used for dragging the camouflage net in two sets of straight ladder mechanisms parallel to each other at the rear end of the camouflage net;

[0092] Step 3: Start the wire rope retracting and releasing assembly to gradually retract the two wire ropes used to drag the camouflage net;

[0093] Step 4: After the camouflage net is dragged down from the target, remove the wire rope hook that is dragging the camouflage net, and retract the wire rope to the vertical ladder mechanism to complete the withdrawal of the camouflage net.

[0094] Table 2 Prediction of the simulated grid collection process

[0095]

[0096]

[0097]

[0098] From the above, it can be seen that the camouflage net frame collection device designed by the present invention has a theoretical setting time of less than 10 minutes, a withdrawal time of less than 7 minutes, and requires no more than 5 operators, which saves time and effort, can reduce the complexity of setting up and withdrawing the camouflage net and the manpower and time costs, and improve work efficiency.

[0099] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should be included in the protection scope of the present invention.

Claims

1. A camouflage grid collection device, characterized in that: It includes two sets of straight ladder mechanisms, one set of diagonal support mechanisms and a power supply; Each set of straight ladder mechanisms includes a main body fixing frame, a first supporting ladder, a second supporting ladder, a winding assembly, a lifting and lowering support rod assembly, a pulley assembly and two limiting guide assemblies; The height of the main body fixing frame is higher than the height of the target to be camouflaged, and a universal wheel is arranged at the bottom thereof, which is divided into a first area, a second area and a third area from bottom to top; wherein a horizontal mounting platform is arranged near the bottom of the first area, and an auxiliary mounting plate is arranged vertically on one side of the first area; The liftable support rod assembly is vertically arranged in the third area, on the same side as the auxiliary mounting plate; The two support ladders are symmetrically installed on both sides of the third area through the limit guide assembly; the first support ladder is on the same side as the auxiliary mounting plate and is used to support the main body fixing frame; the second support ladder is used for operators to climb onto the main body fixing frame; the two support ladders can slide up and down along the limit guide assembly, and can form an angle with the main body fixing frame under the action of the limit guide assembly; when the two support ladders slide to the highest point of the limit guide assembly, the two support ladders can be retracted into the frame of the main body fixing frame; when the two support ladders slide to the lowest point of the limit guide assembly and the angle with the main body fixing frame is the largest, the ladder feet of the two support ladders are just supported on the horizontal ground; The winding assembly includes a cable reel and two wire rope winding and releasing assemblies; the two wire rope winding and releasing assemblies are arranged side by side on a horizontal mounting platform and are both connected to a power source through the cable reel; The pulley assembly includes two sets of top pulleys and two sets of bottom pulleys; the two sets of top pulleys are arranged at the top of the liftable support rod assembly, and the two sets of bottom pulleys are arranged on the inner side of the auxiliary mounting plate, and the top pulleys and the bottom pulleys are located on the same vertical line; The steel wire rope of one of the steel wire rope retracting and releasing assemblies is led out through a group of bottom pulleys and a group of top pulleys in sequence, and a hook is provided at the end of the steel wire rope for dragging the camouflage net; the steel wire rope of the other steel wire rope retracting and releasing assemblies is led out through another group of bottom pulleys and another group of top pulleys in sequence; The overall diagonal support mechanism is a retractable and foldable structure, including a main support assembly and an inclined support assembly; the main support assembly can stably support the inclined support assembly; when the inclined support assembly is installed in place, its bottom end is supported on the horizontal ground, and the top end is fixedly connected to the target to be camouflaged and is used to fix the wire rope of another wire rope retracting assembly, and cooperate with it to support the camouflage net.

2. The camouflage grid collection device according to claim 1, characterized in that: Each limit guide assembly includes two guide shafts, two linear bearings and two limit blocks; Two guide shafts are vertically installed in the third area; two linear bearings are respectively mounted on the two guide shafts; two limit blocks are respectively arranged on the outsides of the two linear bearings; The top end of the support ladder is hinged between the linear bearing and the limit block, and can move within the limit range of the limit block to form an angle with the main fixed frame.

3. The camouflage grid collection device according to claim 2, characterized in that: The linear bearing and the limit block are integrated parts, and a hinge position for supporting the top end of the ladder is reserved between the two.

4. The camouflage grid collection device according to claim 3, characterized in that: The bottom pulley is a fixed pulley and the top pulley is a universal pulley.

5. The camouflage grid collection device according to claim 4, characterized in that: The liftable support rod assembly comprises a guide rail and a support rod. The guide rail is vertically installed in the middle of one side of the third area, and the support rod can slide up and down in the guide rail.

6. The camouflage grid collection device according to any one of claims 1 to 5, characterized in that: The inclined plane support assembly includes a foldable and retractable inclined plane support frame and a plurality of retractable support rods; The foldable and retractable inclined plane support frame comprises two parallel inclined rods; the two inclined rods are connected by a plurality of retractable cross rods arranged at intervals and perpendicular to the inclined rods; both ends of the retractable cross rods near the upper ends of the inclined rods extend downward to form mounting arms; a plurality of retractable support rods are detachably mounted between two adjacent retractable cross rods, parallel to each other and near the lower ends of the inclined rods; The diagonal rod comprises an upper diagonal rod and a lower diagonal rod, and the upper diagonal rod and the lower diagonal rod are connected by a folding component and can be folded and retracted; The upper end of the upper oblique rod is of a buckle design, which is used to reliably overlap the oblique rod on the tail of the target to be camouflaged.

7. The camouflage grid collection device according to claim 6, characterized in that: The main support assembly includes two retractable vertical support rods and two horizontal support rods; the two vertical support rods and the two horizontal support rods are assembled one by one and are located on both sides of the inclined support assembly; The upper end of the vertical support rod is arc-shaped, connected to the mounting arm at the upper end of the diagonal rod, and can rotate around the connection, and the lower end is connected to one end of the horizontal support rod; The other end of the horizontal support rod is connected to the lower end of the oblique rod.

8. The camouflage grid collection device according to claim 7, characterized in that: The main fixing frame is made of lightweight aluminum profiles; the auxiliary installation plate is made of thin aluminum plate; The diagonal bracing mechanism is formed by overlapping stainless steel thin tubes, aluminum alloy round tubes and magnesium alloy round tubes.

9. A method for erecting a camouflage net using the camouflage net erection and collection device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Preliminary preparation Push the two sets of vertical ladder mechanisms to the appropriate position in front of the target, lock the universal wheels, open the two support ladders, and turn on the power supply; Place the diagonal support mechanism behind the target, lift it up and unfold it, fix the upper end of the diagonal support mechanism to the tail of the target, and support the lower end on the horizontal ground; Step 2: Pull the four steel wires of the two sets of straight ladder mechanisms to the tail of the target; two of the steel wires with hooks are parallel to each other and hung at the front end of the unfolded camouflage net to drag the camouflage net; the other two steel wires cross each other and are fixed to the upper end of the diagonal support mechanism to support the camouflage net; Step 3: Start the wire rope retracting and releasing assembly to tighten the two wire ropes supporting the camouflage net and gradually retract the two wire ropes dragging the camouflage net; Step 4: After the camouflage net is dragged to the appropriate position, remove the wire rope hook that drags the camouflage net, untie the two wire ropes supporting the camouflage net and retract them to the straight ladder mechanism; Step 5: Remove the diagonal support mechanism from the tail of the target; Step 6: Hang the camouflage net on the hook on the target's body to complete the camouflage.

10. A method for retracting a camouflage net using the camouflage net retracting device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Preliminary preparation Push the two sets of vertical ladder mechanisms to the appropriate position behind the target, lock the universal wheels, open the two support ladders, and turn on the power supply; Remove the camouflage net from the hooks on the target's body; Step 2: Hang two steel wire ropes used for dragging the camouflage net in two sets of straight ladder mechanisms parallel to each other at the rear end of the camouflage net; Step 3: Start the wire rope retracting and releasing assembly to gradually retract the two wire ropes used to drag the camouflage net; Step 4: After dragging the camouflage net from the target, remove the wire rope hook that is dragging the camouflage net, and retract the wire rope to the vertical ladder mechanism to complete the withdrawal of the camouflage net.

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