A portable camouflage net support framework and method of use thereof

Abstract

The application provides a portable camouflage net supporting framework and a use method thereof, aiming at facilitating carrying, shortening the deployment and withdrawal time and realizing quick deformation camouflage screen. The supporting framework comprises an umbrella frame, a supporting rod, an extension rod, a stand type connecting mechanism and a magnetic attraction mechanism. The umbrella frame comprises ribs, a canopy and a middle rod. The canopy is arranged on the middle rod. The ribs are pivotally connected with the canopy and comprise two groups of first four-bar linkage mechanisms and five groups of second four-bar linkage mechanisms. After the ribs are unfolded, each group of four-bar linkage mechanism is evenly distributed in a sector with a central angle greater than 180 DEG, and the first main connecting rod and the second main connecting rod are located on the same horizontal plane. Among them, the two groups of first four-bar linkage mechanisms are adjacent, and the two groups of first four-bar linkage mechanisms are connected with the extension rod through a hollow connecting hole. The outer circumferential surface of the extension rod is provided with a node for tying a pull rope. The middle rod is connected with the supporting rod through the stand type connecting mechanism. The supporting rod is further connected with the magnetic attraction mechanism.

Description

Technical Field

[0001] This invention belongs to the field of stealth and camouflage technology, specifically relating to a portable camouflage net support frame and its usage method. Background Technology

[0002] Stealth and camouflage technology is one of the important means to improve the survivability of weapon systems. Camouflage netting is an important way to achieve stealth and camouflage technology, and it usually consists of two main parts: the camouflage surface and the supporting frame.

[0003] The support frame mainly consists of a net-casting device and a support rod assembly, which supports the camouflage net surface. Traditional support frames are generally large in size and weight, with a size of 150cm×30cm×30cm and a weight of about 20kg after dismantling, making them inconvenient to carry. In addition, due to their conservative structural design and inability to deform, traditional support frames are designed for on-the-spot deployment, resulting in slow deployment and dismantling speeds and high labor costs. It generally requires 5 people to work together for about 10 minutes to complete the setup and dismantling of the support frame, thereby reducing the camouflage and concealment effect.

[0004] Therefore, it is necessary to design a new support frame. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a portable camouflage net support frame and its usage method, aiming to shorten deployment and dismantling time and achieve rapid deformation camouflage and concealment.

[0006] To achieve the above objectives, the technical solution provided by this invention is:

[0007] A portable camouflage net support frame, characterized in that it includes an umbrella frame, support rods, telescopic rods, a column-type connecting mechanism, and a magnetic attraction mechanism;

[0008] The umbrella frame includes umbrella ribs, umbrella sleeves, and a center rod;

[0009] The umbrella nest is set on the central rod and includes an upper nest, a middle nest and a lower nest from top to bottom; the upper nest is pivotally connected to the central rod; the middle nest is fixed on the central rod; the lower nest is fitted on the central rod and can slide up and down along the central rod under the action of external force.

[0010] The umbrella ribs include two sets of first four-bar linkages and five sets of second four-bar linkages;

[0011] The first four-bar linkage includes a first main link, a first long secondary link, a first short secondary link, and a first small link; one end of the first main link is pivotally connected to the middle socket; one end of the first short secondary link is pivotally connected to the upper socket, and the other end is pivotally connected to the middle part of the first main link; one end of the first small link is pivotally connected to the lower socket, and the other end is pivotally connected to the body of the first main link; one end of the first long secondary link is pivotally connected to the body of the first short secondary link, the middle part is pivotally connected to the other end of the first main link, and the other end is provided with a hollow connecting hole;

[0012] The second four-bar linkage includes a second main link, a second long secondary link, a second short secondary link, and a second small link; one end of the second main link is pivotally connected to the middle socket; one end of the second short secondary link is pivotally connected to the upper socket, and the other end is pivotally connected to the middle section of the second main link; one end of the second small link is pivotally connected to the lower socket, and the other end is pivotally connected to the section of the second main link; one end of the second long secondary link is pivotally connected to the section of the second short secondary link, and the middle section is pivotally connected to the other end of the second main link.

[0013] After the umbrella ribs are unfolded, each group of four-bar linkages is evenly distributed in a fan shape with a central angle greater than 180° (i.e., the umbrella ribs are fan-shaped after unfolding). The first main linkage and the second main linkage are located on the same horizontal plane. Among them, the two groups of first four-bar linkages are adjacent to each other, and the two groups of first four-bar linkages are connected to the telescopic rod through hollow connecting holes. The telescopic rod has nodes for attaching pull ropes on its outer circumference. When in use, the telescopic rod is parallel to the camouflaged part.

[0014] The central rod is connected to the support rod via a column-type connecting mechanism; the support rod is also connected to a magnetic attraction mechanism.

[0015] Furthermore, the other end of the first long auxiliary connecting rod is connected to the telescopic rod via a key ring and a retainer; the key ring is installed on the hollow connecting hole of the first long auxiliary connecting rod; the retainer is a hollow cylinder with symmetrical through holes on both ends of the wall, and one end of the retainer is connected to the key ring via the through hole.

[0016] The telescopic rod is a hollow sleeve rod, comprising one outer rod and two inner rods; the outer rod is hollow at both ends, with symmetrical through holes on the wall surface of each end, and nodes for attaching steel wire ropes are provided on the outer circumference of the outer rod body; the inner rods are hollow at both ends; the two ends of the outer rod are respectively connected to one end of the two inner rods via V-shaped springs; the other ends of the two inner rods are connected to the other end of the fixing device via V-shaped springs; the V-shaped spring consists of two springs, with a cylinder for inserting into the through hole on the outer side of the spring.

[0017] That is, the two ends of the outer rod are connected to one end of the two inner rods respectively through V-shaped springs (the bottom of the V-shaped spring is inserted into the hollow part of the end of the inner rod, and its two springs extend into the end of the outer rod. Under the action of elastic force, the cylinder on the outside of the spring is inserted into the through hole at the end of the outer rod, connecting the outer rod and the inner rod; when disassembling, the cylinder is pressed to make it exit the through hole, and under the action of external force, the outer rod and the inner rod are separated). The other ends of the two inner rods are connected to the retainer respectively through V-shaped springs (the connection and disassembly methods are the same as those described above).

[0018] Furthermore, in order to stably and reliably support the camouflage surface during use and to ensure that the camouflage surface is subjected to uniform force, the first long auxiliary connecting rod is composed of a first inner rod and a first outer rod. The first inner rod and the first outer rod form an obtuse angle. The hollow connecting hole is provided at the end of the first outer rod, and the end of the rod is set downward. The other end of the first main connecting rod is pivotally connected to the body of the first outer rod.

[0019] The second long auxiliary link consists of a second inner link and a second outer link, with an obtuse angle between the second inner link and the second outer link, and the end of the second outer link is set downwards; the other end of the second main link is pivotally connected to the body of the second outer link.

[0020] Furthermore, the column-type connecting mechanism includes a tightening bolt, a ring buckle, a tightening nut, and an alignment clamping hole; the head of the tightening bolt is provided with a hollow hole for inserting the central rod;

[0021] The ring buckle is cup-shaped, with a through hole at the bottom for the bolt rod to pass through, and semi-circular notches that match the central rod are symmetrically arranged on its annular wall.

[0022] The alignment clamping hole is an open clamp, and the whole is U-shaped. Near the bottom of the U-shape, there is a vertical hollow hole for clamping the support rod. A pair of through holes are symmetrically arranged on the two walls of the U-shape to form a horizontal hollow hole for the bolt rod to pass through.

[0023] The tightening nut is installed at the tail end of the tightening bolt, together securing the support rod and the middle rod.

[0024] Furthermore, the magnetic attraction mechanism consists of an electromagnet and an electromagnetic switch;

[0025] One end of the electromagnet is connected to the part to be disguised via electromagnetic attraction, and the other end is connected to the support rod via a thread; the electromagnetic switch controls the on / off state of the electromagnet's electromagnetic attraction via a relay.

[0026] The support rod is a cylindrical iron rod with threads at one end, which is connected to the magnetic threaded hole through the thread, and the other end is inserted into the alignment clamping hole of the column-type connection mechanism.

[0027] Furthermore, for ease of organization and storage, a packaging bag is also included; one end of the packaging bag is sealed and the other end is open, and the open end can be tightened, for example, by setting a zipper to tighten; the packaging bag is provided with flexible buckles inside for fixing telescopic rods, support rods and umbrella frames, and is provided with pockets on the outside for storing magnetic mechanisms and column-type connecting mechanisms.

[0028] Furthermore, in order to make the overall structure more stable, balanced, appropriately spaced, aesthetically pleasing, and capable of providing extensive camouflage after the camouflage surface is laid out, it includes two sets of first four-bar linkage mechanisms and five sets of second four-bar linkage mechanisms; after the umbrella ribs are unfolded, the seven sets of four-bar linkage mechanisms are evenly distributed in a fan shape with a central angle of 240°, and the two sets of first four-bar linkage mechanisms are adjacent with an included angle of 120°.

[0029] The umbrella frame, support pole, telescopic pole, and column-type connecting mechanism mentioned above can be made of lightweight metal.

[0030] Furthermore, the present invention also provides a method for using the above-mentioned portable camouflage net support frame, which is characterized by including unfolding and retraction;

[0031] The unfolding steps are as follows:

[0032] 1) Remove the magnetic suction mechanism, telescopic rod, support rod, column-type connecting mechanism, and umbrella frame from the packaging bag;

[0033] 2) Connect one end of the support rod to the magnetic attraction mechanism, and insert the other end into the vertical hollow hole of the alignment clamping hole of the column-type connection mechanism;

[0034] 3) Attach one end of the magnetic attraction mechanism, which connects the support rod and the column-type connecting mechanism, to the part to be disguised, and turn on the electromagnetic switch of the magnetic attraction mechanism.

[0035] 4) Loosen the tightening nuts of the column-type connecting mechanism;

[0036] 5) Use the upward movement of the umbrella fins on the center rod to open the umbrella ribs;

[0037] 6) Open the telescopic rod and install it onto the two sets of first four-bar linkages;

[0038] 7) Insert the center rod into the hollow hole of the bolt head of the column-type connecting mechanism, and adjust the angle of the center rod so that the telescopic rod is parallel to the part to be disguised.

[0039] 8) Tighten the ring buckle of the column-type connecting mechanism and tighten the screw nut;

[0040] 9) Secure the steel wire rope to the camouflaged equipment;

[0041] The withdrawal steps are as follows:

[0042] S1. Untie the steel wire rope, loosen and tighten the nut, loosen the ring buckle, and remove the middle rod;

[0043] S2. Remove the telescopic rod and use the downward movement of the umbrella stand on the center rod to close the umbrella ribs;

[0044] S3. Remove the column-type connecting mechanism;

[0045] S4. Turn off the electromagnetic switch for magnetic attraction;

[0046] S5. Remove the support rod;

[0047] S6. Pack each component into a packaging bag.

[0048] Further, in step 6), the telescopic rod is installed onto the two sets of first four-bar linkages using a key ring and a retainer.

[0049] Meanwhile, the present invention also provides a camouflage net, which is characterized in that it includes a camouflage surface and a supporting frame; the supporting frame is the aforementioned supporting frame. In use, the camouflage surface is simply laid on after unfolding and removed before retracting.

[0050] The beneficial effects of this invention are:

[0051] 1. The camouflage net support frame structure of this invention is reasonably designed, simple to operate, and can be quickly deformed. The deployment and dismantling time is short. Under normal circumstances, a single person can complete the deployment and dismantling within 30 seconds, which greatly reduces labor costs and greatly improves efficiency.

[0052] 2. The camouflage net support frame of this invention can be made of lightweight metal, which is small in size, light in weight, and highly portable after being retracted. Due to its strong deformability, the volume after retraction is usually within 35cm×15cm×10cm (length×height×width), and the weight is usually within 1.5kg.

[0053] 3. The camouflage net support frame of this invention, combined with the camouflage surface, provides excellent camouflage effect. The placement location can be flexibly selected according to the usage environment and vehicle operating conditions, enabling rapid deformation camouflage of specific parts of the vehicle. Attached Figure Description

[0054] Figure 1 This is a schematic diagram showing the connection relationship of the components of the portable camouflage net support frame in the deployed state of the present invention;

[0055] Figure 2 This is a schematic diagram of the fixator structure in this invention;

[0056] Figure 3 This is a schematic diagram of the double-headed hollow V-shaped spring structure in this invention;

[0057] Figure 4 This is a schematic diagram showing the connection relationship between the telescopic rod and the fixing device in this invention;

[0058] Figure 5 This is a schematic diagram of the layout of the fan-shaped umbrella frame in its unfolded state in this invention;

[0059] Figure 6 This is a schematic diagram of the four-bar linkage mechanism with a hollow connecting hole at the top in this invention;

[0060] Figure 7 This is a schematic diagram of a four-bar linkage mechanism without a hollow connecting hole at the top in this invention.

[0061] Figure 8 This is a schematic diagram of the column-type connection mechanism in this invention;

[0062] Figure 9 This is a schematic diagram of the tightening bolt structure of the column-type connecting mechanism in this invention;

[0063] Figure 10 This is a schematic diagram of the annular buckle structure of the column-type connecting mechanism in this invention;

[0064] Figure 11 This is a schematic diagram of the alignment clamping hole structure of the column-type connecting mechanism in this invention;

[0065] Figure 12 This is a schematic diagram of the support rod structure in this invention;

[0066] Figure 13 This is a schematic diagram of the telescopic rod structure in this invention;

[0067] Figure 14 This is a schematic diagram of the packaging bag structure in this invention.

[0068] The attached figures are labeled as follows:

[0069] 1-Umbrella frame, 11-Umbrella ribs, 111-First four-bar linkage, 112-Second four-bar linkage, 1111-Main link, 1112-First long secondary link, 1113-Short secondary link, 1114-Small link, 1121-Second long secondary link, 12-Umbrella nest, 121-Upper nest, 122-Middle nest, 123-Lower nest, 13-Center rod;

[0070] 2-Column-type connecting mechanism, 21-Tightening bolt, 22-Ring buckle, 23-Tightening nut, 24-Alignment clamping hole;

[0071] 3-Magnetic attraction, 31-Electromagnet, 32-Electromagnetic switch;

[0072] 4-Support rod;

[0073] 5-Telescopic pole, 51-Inner pole, 52-Outer pole;

[0074] 6-Packaging bag, 61-Flexible snap, 62-Pocket;

[0075] 7-Fixer; 8-Key ring; 9-V-type spring. Detailed Implementation

[0076] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0077] A portable camouflage net support frame structure mainly includes: a fan-shaped umbrella frame 1, a column-type connecting mechanism 2, a magnetic attraction mechanism 3, a support rod 4, a telescopic rod 5, a packaging bag 6, a fixing device 7, a key ring 8, and a V-shaped spring 9. Figure 1 As shown, the fan-shaped umbrella frame 1 is connected to the support rod 4 through the column-type connecting mechanism 2, and the support rod 4 is connected to the magnetic attraction mechanism 3 by threads.

[0078] The umbrella frame 1 includes umbrella ribs 11, umbrella nests 12, and a central rod 13. The umbrella nests, from top to bottom, include an upper nest 121, a middle nest 122, and a lower nest 123. The upper nest is pivotally connected to the central rod. The middle nest is fixed to the central rod by screws. The lower nest is fitted onto the central rod and can slide up and down along the central rod under the action of external force.

[0079] like Figure 5 As shown, the umbrella ribs include two sets of first four-bar linkages 111 and five sets of second four-bar linkages 112. When unfolded, the seven sets of four-bar linkages are evenly distributed in a 240° fan shape (that is, when unfolded, the umbrella ribs are fan-shaped and the density of the umbrella ribs is appropriate, which can provide good support). Among them, the two sets of first four-bar linkages are adjacent to each other, located on the outside of the fan shape, forming a 120° angle, and the two sets of first four-bar linkages are connected by a telescopic rod 5, a fixing device 7, and a key ring 8.

[0080] The first four-bar linkage 111 includes a main link, a first long secondary link, a short secondary link, and a small link. One end of the main link is pivotally connected to the middle socket; one end of the short secondary link is pivotally connected to the upper socket, and the other end is pivotally connected to the middle section of the main link; one end of the small link is pivotally connected to the lower socket, and the other end is pivotally connected to the section of the main link; the first long secondary link is composed of a first inner link and a first outer link connected together, with an obtuse angle between the first inner link and the first outer link. The first inner link is pivotally connected to the section of the short secondary link, and the section of the first outer link is pivotally connected to the other end of the main link. A hollow connecting hole is provided at the top for installing a key ring 8, which then connects to the fixing device 7. Figure 6As shown. The second four-bar linkage includes a main link, a second long secondary link, a short secondary link, and a small link; one end of the main link is pivotally connected to the middle socket; one end of the short secondary link is pivotally connected to the upper socket, and the other end is pivotally connected to the middle section of the main link; one end of the small link is pivotally connected to the lower socket, and the other end is pivotally connected to the section of the main link; the second long secondary link is composed of a second inner link and a second outer link connected together, with an obtuse angle between the second inner link and the second outer link, the second inner link being pivotally connected to the section of the short secondary link, and the section of the second outer link being pivotally connected to the other end of the main link; when unfolded, all the main links of the four-bar linkage are located on the same horizontal plane, as shown. Figure 7 As shown. In other words, the difference between the first four-bar linkage and the second four-bar linkage is that the first four-bar linkage has a hollow connecting hole at the top outer side of the long auxiliary link, while the second four-bar linkage does not have a hollow connecting hole at the top outer side of the long auxiliary link.

[0081] Overall, the upper socket 121 is pivotally connected at one end to the middle rod 13, and at the other end to the short connecting rod of the four-bar linkage; the middle socket 122 is fixed at one end to the middle rod with screws, and at the other end is pivotally connected to the main connecting rod 1111 of the four-bar linkage; the lower socket 123 is fitted onto the middle rod 13 at one end, allowing it to move up and down relative to the middle rod 13, and at the other end is pivotally connected to the small connecting rod 1114 of the four-bar linkage, such as... Figure 1 , Figure 6 , Figure 7 As shown.

[0082] like Figure 2 and Figure 4 As shown, the fixing device 7 is a hollow cylinder with symmetrical through holes on both ends. One end is connected to the key ring 8 through the through hole, and the other end is connected to the telescopic rod 5 through a V-shaped spring 9. Figure 13 As shown, the telescopic rod 7 is a hollow sleeve rod, including one outer rod 52 and two inner rods 51. The outer rod has a larger diameter than the inner rods. The outer rod 52 is hollow at both ends, with symmetrical through holes on the wall of each end. Multiple sets of nodes for attaching steel wire ropes are welded to the outer circumference of the outer rod. The inner rods 51 are hollow at both ends. The two ends of the outer rod are connected to one end of each of the two inner rods via V-shaped springs 9, and the other ends of the two inner rods are connected to the other end of the fixing device via V-shaped springs. Figure 3 As shown, the V-shaped spring consists of two springs, with a cylinder on the outer side of the spring for inserting into a through hole. That is, both ends of the outer rod are connected to one end of each of the two inner rods via the V-shaped spring (the bottom of the V-shaped spring is inserted into the hollow part of the inner rod end, and its two springs extend into the end of the outer rod; under the action of elastic force, the cylinder on the outer side of the spring inserts into the through hole at the end of the outer rod, connecting the outer rod and the inner rod; during disassembly, the cylinder is pressed down to remove it from the through hole, and under the action of external force, the outer rod and inner rod are separated). The other ends of the two inner rods 51 are connected to the retainer 7 via the V-shaped spring 9 (the connection and disassembly methods are the same as described above).

[0083] like Figure 8 As shown, the column-type connecting mechanism includes a tightening bolt, a ring-shaped buckle, a tightening nut, and an alignment clamping hole. Figure 9 As shown, the head of the tightening bolt has a hollow hole for inserting the middle rod; that is, it is a tightening bolt with a hollow hole in the head. Figure 10 As shown, the annular buckle is cup-shaped, with a through hole at the bottom for the bolt shank to pass through, and symmetrical semi-circular notches matching the central rod on its annular wall. Figure 11 As shown, the alignment clamp is an open clamp with an overall U-shape. Near the bottom of the U-shape, there is a vertical hollow hole for clamping the support rod. A pair of through holes are symmetrically arranged on the two walls of the U-shape to form a horizontal hollow hole for the bolt rod to pass through. The tightening nut is installed at the tail end of the tightening bolt to fasten the support rod and the middle rod together.

[0084] The magnetic attraction mechanism consists of an electromagnet and an electromagnetic switch; one end of the electromagnet is connected to the part to be disguised via electromagnetic attraction, and the other end is connected to the support rod via a thread; the electromagnetic switch controls the on / off state of the electromagnetic attraction of the electromagnet via a relay.

[0085] like Figure 12 As shown, the support rod is a cylindrical iron bar with threads at one end, which is connected to the magnetic threaded hole through the thread, and the other end is inserted into the alignment clamping hole of the column-type connection mechanism.

[0086] like Figure 14 As shown, the packaging bag is sealed at one end and open at the other, with the open end able to be tightened via a zipper. The bag has flexible buckles inside for securing the telescopic rod, support rod, and umbrella frame, and an external pocket for storing the magnetic closure mechanism and the column-type connecting mechanism.

[0087] The umbrella frame, support pole, telescopic pole, and column-type connecting mechanism mentioned above can be made of lightweight metal.

[0088] The above-mentioned portable camouflage net support frame can be used in two states: deployed and retracted.

[0089] The steps for unfolding are as follows:

[0090] 1) Remove the magnetic suction mechanism 3, telescopic rod 5, support rod 4, column-type connecting mechanism 2, and umbrella frame 1 from the packaging bag;

[0091] 2) Screw one end of the support rod 4 into the threaded hole of the magnetic attraction mechanism 3, and insert the other end into the vertical hollow hole of the alignment clamping hole of the column-type connecting mechanism 2.

[0092] 3) Place one end of the magnetic attraction mechanism 3, which connects the support rod 4 and the column-type connecting mechanism 2, against the part to be disguised, and turn on the electromagnetic switch 32 of the magnetic attraction mechanism 3.

[0093] 4) Loosen the tightening nut 23 of the column-type connecting mechanism;

[0094] 5) The fan-shaped umbrella ribs 11 are opened by the upward movement of the umbrella nest 12 on the central rod 13;

[0095] 6) Open the telescopic rod 5 and install it onto the two sets of first four-bar linkages via the key ring 8 and the retainer 7;

[0096] 7) Insert the middle rod 13 into the hollow hole at the head of the tightening bolt 21, and adjust the angle of the middle rod 13 so that the telescopic rod 5 is parallel to the part to be disguised.

[0097] 8) Tighten the ring buckle 22 and tighten the screw nut 23;

[0098] 9) Secure the steel wire rope to the camouflaged equipment;

[0099] The withdrawal steps are as follows:

[0100] S1: Untie the steel wire rope, loosen and tighten the nut 23, loosen the ring buckle 22, and take out the middle rod 13;

[0101] S2: Remove the telescopic rod 5 and use the downward movement of the umbrella shroud 12 on the central rod 13 to close the fan-shaped umbrella ribs 11;

[0102] S3: Remove column-type connecting mechanism 2;

[0103] S4: Close the electromagnetic switch 32 of the magnetic attraction mechanism 3;

[0104] S5: Remove support rod 4;

[0105] S6: Pack each component into a packaging bag.

[0106] The camouflage net using the above-mentioned support frame is more portable, can be operated by a single person, and can be deployed and withdrawn in a short time.

[0107] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the scope of the technology disclosed in the present invention, and such modifications or substitutions should all be covered within the scope of protection of the present invention.

Claims

1. A portable camouflage net support frame, characterized in that: Includes umbrella frame, support pole, telescopic pole, column-type connection mechanism, and magnetic attraction mechanism; The umbrella frame includes umbrella ribs, umbrella sleeves, and a center rod; The umbrella nest is set on the central rod and includes an upper nest, a middle nest and a lower nest from top to bottom; the upper nest is pivotally connected to the central rod; the middle nest is fixed on the central rod; the lower nest is fitted on the central rod and can slide up and down along the central rod under the action of external force. The umbrella ribs include two sets of first four-bar linkages and multiple sets of second four-bar linkages. The first four-bar linkage includes a first main link, a first long secondary link, a first short secondary link, and a first small link; one end of the first main link is pivotally connected to the middle socket; one end of the first short secondary link is pivotally connected to the upper socket, and the other end is pivotally connected to the middle part of the first main link; one end of the first small link is pivotally connected to the lower socket, and the other end is pivotally connected to the body of the first main link; one end of the first long secondary link is pivotally connected to the body of the first short secondary link, the middle part is pivotally connected to the other end of the first main link, and the other end is provided with a hollow connecting hole; The second four-bar linkage includes a second main link, a second long secondary link, a second short secondary link, and a second small link; one end of the second main link is pivotally connected to the middle socket; one end of the second short secondary link is pivotally connected to the upper socket, and the other end is pivotally connected to the middle section of the second main link; one end of the second small link is pivotally connected to the lower socket, and the other end is pivotally connected to the section of the second main link; one end of the second long secondary link is pivotally connected to the section of the second short secondary link, and the middle section is pivotally connected to the other end of the second main link. After the umbrella ribs are unfolded, each group of four-bar linkages is evenly distributed in a fan shape with a central angle greater than 180°. The first main linkage and the second main linkage are located on the same horizontal plane. Among them, the two groups of first four-bar linkages are adjacent to each other, and the two groups of first four-bar linkages are connected to the telescopic rod through hollow connecting holes. The telescopic rod has nodes on its outer circumference for attaching pull ropes. The central rod is connected to the support rod via a column-type connecting mechanism; the support rod is also connected to a magnetic attraction mechanism. The other end of the first long auxiliary connecting rod is connected to the telescopic rod via a key ring and a retainer; The key ring is mounted on the hollow connecting hole of the first long auxiliary connecting rod; The fastener is a hollow cylinder with symmetrical through holes on both ends of the wall, and one end of it is connected to the key ring through the through hole. The telescopic rod includes one outer rod and two inner rods; the outer rod is hollow at both ends, and through holes are symmetrically arranged on the wall surface of each end. A node for attaching a steel wire rope is provided on the outer circumference of the outer rod body; the inner rods are hollow at both ends; the two ends of the outer rod are respectively connected to one end of each of the two inner rods via V-shaped springs; the other ends of the two inner rods are connected to the other end of a fixing device via V-shaped springs. The V-shaped spring consists of two springs, with a cylinder on the outer side of the spring for inserting into a through hole; The column-type connecting mechanism includes a tightening bolt, a ring buckle, a tightening nut, and an alignment clamping hole; The head of the tightening bolt is provided with a hollow hole for inserting the middle rod; The ring buckle is cup-shaped, with a through hole at the bottom for the bolt rod to pass through, and semi-circular notches that match the central rod are symmetrically arranged on its annular wall. The alignment clamping hole is an open clamp, and the whole is U-shaped. Near the bottom of the U-shape, there is a vertical hollow hole for clamping the support rod. A pair of through holes are symmetrically arranged on the two walls of the U-shape to form a horizontal hollow hole for the bolt rod to pass through. The tightening nut is installed at the tail end of the tightening bolt, together securing the support rod and the central rod; the magnetic attraction mechanism consists of an electromagnet and an electromagnetic switch; One end of the electromagnet is connected to the part to be disguised via electromagnetic attraction, and the other end is connected to the support rod via a thread; the electromagnetic switch controls the on / off state of the electromagnet's electromagnetic attraction via a relay.

2. The portable camouflage net support frame according to claim 1, characterized in that: The first long auxiliary connecting rod consists of a first inner rod and a first outer rod, with an obtuse angle between the first inner rod and the first outer rod. The hollow connecting hole is provided at the end of the first outer rod, and the end of the rod is facing downward. The other end of the first main connecting rod is pivotally connected to the body of the first outer rod. The second long auxiliary link consists of a second inner link and a second outer link, with an obtuse angle between the second inner link and the second outer link, and the end of the second outer link is set downwards; the other end of the second main link is pivotally connected to the body of the second outer link.

3. The portable camouflage net support frame according to claim 2, characterized in that: It also includes packaging bags; The packaging bag is sealed at one end and open at the other end, and the open end can be tightened. The packaging bag has flexible buckles inside to secure the telescopic pole, support pole, and umbrella frame, and an external pocket for storing the magnetic mechanism and column-type connection mechanism.

4. The portable camouflage net support frame according to claim 3, characterized in that: It includes two sets of first four-bar linkages and five sets of second four-bar linkages; After the umbrella ribs are unfolded, the seven sets of four-bar linkages are evenly distributed in a fan shape with a central angle of 240°, and the two sets of the first four-bar linkages are adjacent and have an included angle of 120°.

5. The method of using the portable camouflage net support frame according to any one of claims 1-4, characterized in that: Including deployment and withdrawal; The unfolding steps are as follows: 1) Remove the magnetic suction mechanism, telescopic rod, support rod, column-type connecting mechanism, and umbrella frame from the packaging bag; 2) Connect one end of the support rod to the magnetic attraction mechanism, and insert the other end into the vertical hollow hole of the alignment clamping hole of the column-type connection mechanism; 3) Attach one end of the magnetic attraction mechanism, which connects the support rod and the column-type connecting mechanism, to the part to be disguised, and turn on the electromagnetic switch of the magnetic attraction mechanism. 4) Loosen the tightening nuts of the column-type connecting mechanism; 5) Use the upward movement of the umbrella fins on the center rod to open the umbrella ribs; 6) Open the telescopic rod and install it onto the two sets of first four-bar linkages; 7) Insert the center rod into the hollow hole of the bolt head of the column-type connecting mechanism, and adjust the angle of the center rod so that the telescopic rod is parallel to the part to be disguised. 8) Tighten the ring buckle of the column-type connecting mechanism and tighten the screw nut; 9) Secure the steel wire rope to the camouflaged equipment; The withdrawal steps are as follows: S1. Untie the steel wire rope, loosen and tighten the nut, loosen the ring buckle, and remove the middle rod; S2. Remove the telescopic rod and use the downward movement of the umbrella stand on the center rod to close the umbrella ribs; S3. Remove the column-type connecting mechanism; S4. Turn off the electromagnetic switch for magnetic attraction; S5. Remove the support rod; S6. Pack each component into a packaging bag.

6. The method of use according to claim 5, characterized in that: In step 6), the telescopic rod is installed onto the two sets of first four-bar linkages using a key ring and a retainer.

7. A camouflage net, characterized in that: It includes a camouflage surface and a supporting frame; The supporting frame is any one of the supporting frames described in claims 1-4.

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