A folding barrier

Abstract

The application discloses a kind of folding interception devices, including two support bodies, two support bodies are installed with interception assembly, interception assembly is provided with several layers, each layer interception assembly includes two slide bars and folding mechanism installed between two slide bars, two slide bars are respectively installed on two support bodies, folding mechanism includes multiple folding units that are sequentially connected and rotated;In folded state, the projection of interception assembly on horizontal plane is in wavy line structure.In folded state, the projection of interception assembly on horizontal plane is in wavy line structure, so that the interception device has smaller length in folded state.

Description

Technical Field

[0001] This invention relates to the field of road safety protection facilities technology, specifically to a foldable interception device. Background Technology

[0002] In daily life, we often encounter situations where we need to temporarily isolate or block roads or sites. Currently, the commonly used isolation or blocking devices are of two types: fixed and foldable. Fixed structures are simple and easy to manufacture, but they are bulky and require a large space for storage or transportation. Foldable blocking devices, on the other hand, can be unfolded and extended when in use, providing a longer blocking length, and they occupy less space during transportation or storage, making them easy to store.

[0003] For foldable interception devices, most currently use cross-fork structures. For example, a road isolation device disclosed in CN220621360U uses a cross-fork structure. Although this structure can be easily folded and retracted, after folding and retracting, the hinge rods of the device abut against each other. Limited by the width of the hinge rods, it cannot be further compressed, resulting in the device still having a large length after folding. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a foldable interception device in which the projection of the interception component on the horizontal plane in the folded state is a wavy linear structure, so that the interception device has a smaller length in the folded state.

[0005] The objective of this invention is achieved as follows: This invention proposes a foldable interception device, comprising two support bodies, with an interception component installed between the two support bodies. The interception component has several layers, and each layer of the interception component includes two sliding rods and a folding mechanism installed between the two sliding rods. The two sliding rods are respectively installed on the two support bodies, and the folding mechanism includes multiple folding units that are rotatably connected in sequence. In the folded state, the projection of the interception component on the horizontal plane has a wavy linear structure.

[0006] The folding unit includes a first hinge block, a second hinge block, a third hinge block, a fourth hinge block, and railings; one end of the third hinge block and the fourth hinge block are rotatably connected along the Z-axis, and railings are rotatably connected to the upper and lower sides of the other ends of the third hinge block and the fourth hinge block along the X-axis or Y-axis, respectively; the first hinge block is rotatably installed at the ends of the two railings located on one side of the third hinge block, and the first hinge block extends toward the Y-axis; the second hinge block is rotatably installed at the ends of the two railings located on one side of the fourth hinge block, and the second hinge block extends toward the X-axis. The first hinge block and the second hinge block of the adjacent folding unit are rotatably connected, and the first hinge block and the second hinge block located at both ends of the folding unit are slidably connected to the slide rods on both sides respectively.

[0007] One end of the first hinge block is provided with a first protrusion, and the first protrusion is provided with a longitudinal first through hole. The other end of the first hinge block is provided with a longitudinal first slot and a second through hole perpendicular to the first slot. The second hinge block has a first groove in the middle of one end, and a third through hole in the upper and lower sides of the first groove. The other end of the second hinge block has a second groove in the longitudinal direction and a fourth through hole perpendicular to the second groove. The end of the corresponding railing extends into the first or second slot, and the railing is rotatably connected to the second or fourth through hole via a pivot. The first protrusion is movably inserted into the first groove, and the pivot passes through the third through hole and the first through hole, so that the first hinge block and the second hinge block are rotatably connected.

[0008] The third hinge block has a second groove in the middle of one end, and fifth through holes are provided on the upper and lower sides of the second groove. The other end of the third hinge block has a longitudinal third slot and two sixth through holes perpendicular to the third slot. The fourth hinge block has a second protrusion at the middle of one end, and a seventh through hole in the longitudinal direction on the second protrusion. The other end of the fourth hinge block has a fourth slot in the longitudinal direction, and two eighth through holes perpendicular to the fourth slot. The head end of the corresponding railing extends into the third or fourth slot, and the railing is rotatably connected to the sixth or eighth through hole via a pivot. The second protrusion is movably inserted into the second groove, and the pivot passes through the fifth and seventh through holes, so that the third hinge block and the fourth hinge block are rotatably connected.

[0009] The slide bar has fixed seats installed at both ends, and the fixed seats are fixedly installed on the support body.

[0010] Both supports are box-shaped structures, with one side of each box open. The sliding rod is installed on the inner wall of the open side of the support. In the folded state, the two supports are brought together, and the interception component is housed within the two supports.

[0011] Both supports are equipped with casters at the bottom, audible and visual alarm lights at the top, and handles and connecting hooks on the outside.

[0012] Leg mechanisms are installed on the front and rear sides of the lower end of the support body.

[0013] Windows are provided on the front and rear sides of the lower end of the support body; the support leg mechanism includes a slide and a telescopic device. The slide is slidably connected to the support body, and the telescopic device is installed on the slide. The telescopic end of the telescopic device extends downward. In the supported state, the two slides extend from the windows on the front and rear sides respectively, and the telescopic device is located outside the support body. The telescopic end of the telescopic device extends out of the supporting ground.

[0014] A slide rail is fixedly installed at the bottom of the support body; the slide includes a slider, a slide groove is provided on the lower side of the slider, the slide groove is slidably installed on the slide rail, the slider is provided with a threaded hole coaxial with the slide groove, a screw is screwed into the threaded hole, one end of the screw is connected to the output shaft of the motor for transmission, and the motor is installed on the support body; A support plate is fixed on one side of the slider. A longitudinal hole is provided on the support plate. The telescopic device is fixedly installed on the support plate. The telescopic end of the telescopic device passes downward through the longitudinal hole. A sealing plate is also fixed on the side of the slider away from the motor; when the support leg mechanism is retracted, the sealing plate closes the window.

[0015] Compared with the prior art, the above-conceptual technical solution conceived in this application has the following beneficial effects: 1. The two supports of this invention are installed at both ends of the interception assembly, supporting the interception assembly and placing it in a longitudinal position. When the interception assembly is folded, its projection on the horizontal plane presents a wavy line structure. Compared to the cross-shaped structure in the prior art where the hinge rods close one by one after folding, the structure of this invention significantly improves the folding compression ratio, resulting in a shorter length for the interception device in the folded state. In other words, for the same length after folding, this application has a greater unfolded length.

[0016] 2. Both supports of this invention are box structures, with one side of each box structure open. A sliding rod is installed on the inner wall of the open side of the support. In the folded state, the two supports are brought together, and the interception component is housed within the two supports. When the device is not in use, the two supports isolate and protect the interception component.

[0017] 3. The present invention has support leg mechanisms installed on the front and rear sides of the lower end of the support body. When the device is in use, the support leg mechanisms support the support body, improving the stability of the support body during use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention in a folded state.

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the outer shell of the hidden side support of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the present invention in its unfolded state.

[0022] Figure 4 This is a three-dimensional structural diagram of the interception component in this invention.

[0023] Figure 5 This is a top view of the interception component in this invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the folding unit in this invention.

[0025] Figure 7 This is a three-dimensional structural diagram of the first hinge block in this invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the second hinge block in this invention.

[0027] Figure 9 This is a three-dimensional structural diagram of the third hinge block in this invention.

[0028] Figure 10 This is a three-dimensional structural diagram of the fourth hinge block in this invention.

[0029] Figure 11 This is a schematic diagram of the internal support leg mechanism of the support body of the present invention.

[0030] Figure 12 This is a three-dimensional structural diagram of the slide in the support leg mechanism of the present invention.

[0031] In the picture: Support body 10, casters 11, audible and visual alarm light 12, handle 13, connecting hook 14, window 15; Interception component 20, slide bar 21, fixing base 211, folding unit 22; First hinge block 221, first protrusion 2211, first through hole 2212, first slot 2213, second through hole 2214; Second hinge block 222, first groove 2221, third through hole 2222, second slot 2223, fourth through hole 2224; Third hinge block 223, second groove 2231, fifth through hole 2232, third slot 2233, sixth through hole 2234; Fourth hinge block 224, second protrusion 2241, seventh through hole 2242, fourth slot 2243, eighth through hole 2244; Railing 225; The components include: support leg mechanism 30, slide rail 31, slide block 32, slider 321, slide groove 322, threaded hole 323, support plate 324, longitudinal hole 325, closing plate 326, telescopic device 33, screw 34, and motor 35. Detailed Implementation

[0032] To more clearly illustrate the purpose, technical solution, and beneficial effects of this application, a further detailed description of this application is provided below in conjunction with illustrations and specific embodiments. It should be specifically noted that the specific embodiments described below are only for illustrating the technical content of this application and do not constitute a limitation on the scope of protection of this application.

[0033] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection via an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Example 1: Combination Figures 1 to 5 A foldable interception device includes two support bodies 10, and an interception component 20 is installed between the two support bodies 10. The interception component 20 has three layers. Each layer of the interception component 20 includes two slide rods 21 and a folding mechanism installed between the two slide rods 21. The two slide rods 21 are respectively installed on the two support bodies 10. The folding mechanism includes multiple folding units 22 that are rotatably connected in sequence. In the folded state, the projection of the interception component 20 on the horizontal plane has a wavy linear structure.

[0036] Two supports 10 are installed at both ends of the interception assembly 20, supporting the interception assembly 20 and placing it in a longitudinal position. See also Figure 5 When the interceptor component 20 is folded, its projection on the horizontal plane is a wavy line structure. Compared with the cross-shaped structure in the prior art where the hinge rods come together one by one after folding, the structure of the present invention can significantly improve the folding compression rate, so that the interceptor device has a smaller length when folded.

[0037] In this embodiment, after the interception component 20 is in the stacked state, see [link to previous section]. Figure 5 It presents a rectangular wave structure resembling the Great Wall.

[0038] Specifically, see Figure 5 If the length of each segment 'a' is 40mm, using the structure of this application, the center distance at each fold is 40mm. However, if the cross-fork structure in the prior art is used, the folded length is approximately 120mm. Therefore, compared with the prior art, the folded length of each segment in this application is one-third that of the prior art, resulting in a shorter folded length. In other words, for the same folded length, this application has a greater unfolded length.

[0039] See Figure 6 The folding unit 22 includes a first hinge block 221, a second hinge block 222, a third hinge block 223, a fourth hinge block 224, and railings 225. One end of the third hinge block 223 and the fourth hinge block 224 are rotatably connected along the Z-axis. The upper and lower sides of the other end of the third hinge block 223 and the fourth hinge block 224 are respectively rotatably connected along the X-axis or the Y-axis to railings 225. The ends of the two railings 225 located on one side of the third hinge block 223 are respectively rotatably mounted with the first hinge block 221, which extends toward the Y-axis. The ends of the two railings 225 located on one side of the fourth hinge block 224 are respectively rotatably mounted with the second hinge block 222, which extends toward the X-axis.

[0040] The first hinge block 221 and the second hinge block 222 of the adjacent folding unit 22 are rotatably connected, and the first hinge block 221 and the second hinge block 222 located at both ends of the folding unit 22 are slidably connected to the slide rods 21 on both sides respectively.

[0041] Specifically, see Figure 7 One end of the first hinge block 221 is provided with a first protrusion 2211, and the first protrusion 2211 is provided with a longitudinal first through hole 2212. The other end of the first hinge block 221 is provided with a longitudinal first slot 2213 and a second through hole 2214 perpendicular to the first slot 2213.

[0042] See Figure 8The second hinge block 222 has a first groove 2221 at the middle of one end, and a third through hole 2222 on the upper and lower sides of the first groove 2221. The other end of the second hinge block 222 has a second groove 2223 on the longitudinal direction and a fourth through hole 2224 perpendicular to the second groove 2223.

[0043] Combined Figure 6 The end of the corresponding railing 225 extends into the first slot 2213 or the second slot 2223. The railing 225 is rotatably connected to the second through hole 2214 or the fourth through hole 2224 via a pivot. The first protrusion 2211 is movably inserted into the first groove 2221. The pivot passes through the third through hole 2222 and the first through hole 2212, so that the first hinge block 221 is rotatably connected to the second hinge block 222.

[0044] Specifically, see Figure 9 The third hinge block 223 has a second groove 2231 in the middle of one end, and a fifth through hole 2232 is provided on the upper and lower sides of the second groove 2231 respectively. The other end of the third hinge block 223 has a longitudinal third slot 2233 and two sixth through holes 2234 perpendicular to the third slot 2233.

[0045] See Figure 10 The fourth hinge block 224 has a second protrusion 2241 at the middle of one end, and a longitudinal seventh through hole 2242 on the second protrusion 2241. The other end of the fourth hinge block 224 has a longitudinal fourth slot 2243 and two upper and lower eighth through holes 2244 perpendicular to the fourth slot 2243.

[0046] Combined Figure 6 The head end of the corresponding railing 225 extends into the third slot 2233 or the fourth slot 2243. The railing 225 is rotatably connected to the sixth through hole 2234 or the eighth through hole 2244 via a pivot. The second protrusion 2241 is movably inserted into the second groove 2231. The pivot passes through the fifth through hole 2232 and the seventh through hole 2242, so that the third hinge block 223 is rotatably connected to the fourth hinge block 224.

[0047] See Figure 11 The slide rod 21 has a fixing seat 211 installed at both ends, and the fixing seat 211 is fixedly installed on the support body 10. The above structure makes it easy to install and fix the slide rod 21 longitudinally to the support body 10.

[0048] In one of the solutions, see Figure 3 The third hinge block 223 or the fourth hinge block 224 located at both ends of the folding unit 22 are fixedly installed on the slide rods 21 on both sides.

[0049] In another option, see Figure 4 The first hinge block 221 and the second hinge block 222 located at both ends of the folding unit 22 are mounted on the slide rods 21 on both sides. Specifically, the first hinge block 221 and the second hinge block 222 located on the lower side are fixedly mounted on the slide rod 21, while the first hinge block 221 and the second hinge block 222 located on the upper side are slidably mounted on the slide rod 21 through the first through hole 2212 or the third through hole 2222.

[0050] In this embodiment, see Figure 1 , 2 3. Both support bodies 10 are box-shaped structures, with one side of each box structure open. The sliding rod 21 is installed on the inner wall of the open side of the support body 10. In the folded state, the two support bodies 10 are brought together, and the interception component 20 is housed within the two support bodies 10. When the device is not in use, the two support bodies 10 isolate and protect the interception component 20.

[0051] Further, see Figure 1 Both support bodies 10 are equipped with casters 11 at their bottoms, making it easy to move the support bodies 10 to the work site. Specifically, the bottoms of the two support bodies 10 are equipped with four casters 11.

[0052] The tops of the two support bodies 10 are equipped with audible and visual alarm lights 12. After the interception device is deployed, the audible and visual alarm lights 12 are powered on to provide active audible and visual warnings and improve safety in low visibility environments.

[0053] Handles 13 are installed on the outer sides of the two supports 10 to facilitate the deployment of the traction device.

[0054] Connecting hooks 14 are also installed on the outer sides of the two support bodies 10 so that multiple devices can be hooked and connected in sequence during use. The connecting hooks 14 are also used to connect heavy objects or external fixed objects such as vehicles, further enhancing the overall impact resistance and wind resistance of the device.

[0055] Example 2: Based on Example 1, see Figure 11 In this embodiment, support leg mechanisms 30 are installed on the front and rear sides of the lower end of the support body 10. When the device is in use, the support leg mechanisms 30 support the support body 10, thereby improving the stability of the support body 10 during use.

[0056] Specifically, see Figure 2 , 3 11. Windows 15 are provided on the front and rear sides of the lower end of the support body 10.

[0057] The outrigger mechanism 30 includes a slide 32 and a telescopic device 33. The slide 32 is slidably connected to the support body 10, and the telescopic device 33 is mounted on the slide 32, with its telescopic end extending downwards. In the supported state, the two slides 32 extend from the windows 15 on the front and rear sides respectively, and the telescopic device 33 is located outside the support body 10, with its telescopic end extending out to support the ground. Figure 3 As shown.

[0058] Specifically, see Figure 11 Two slide rails 31 are fixedly installed at the bottom inside the support body 10, with both ends of the slide rails 31 facing the windows 15 on both sides.

[0059] See Figure 12 The slide block 32 includes a slider 321. A groove 322 is provided on the lower side of the slider 321, and the groove 322 is slidably mounted on the slide rail 31. A threaded hole 323 coaxial with the groove 322 is provided on the slider 321. A screw 34 is screwed into the threaded hole 323, and one end of the screw 34 is connected to the output shaft of the motor 35 for transmission. The motor 35 is mounted on the support body 10. A support plate 324 is fixedly provided on one side of the slider 321. A longitudinal hole 325 is provided on the support plate 324, and a telescopic device 33 is fixedly mounted on the support plate 324. The telescopic end of the telescopic device 33 passes downward through the longitudinal hole 325. A closing plate 326 is also fixedly provided on the side of the slider 321 away from the motor 35.

[0060] Specifically, the two slides 32 are positioned corresponding to the windows 15 on the front and rear sides of the lower end of the support body 10, respectively. When the motor 35 starts, it drives the screw 34 to rotate, thereby moving the slides 32 along the slide rail 31. When support is needed, the two motors 35 start, and the slides 32 on both sides extend out of the window 15 a certain length, extending the telescopic device 33 out of the window 15. Then the motors 35 stop, and the telescopic device 33 starts, extending its telescopic end downwards to support the ground. When support is not needed, the telescopic device 33 is first activated to retract the telescopic end, and then the two motors 35 are activated, causing the slides 32 on both sides to move towards each other, retracting the slides 32 back into the window 15. With the support leg mechanism 30 fully retracted, the closing plate 326 closes the window 15.

[0061] In this embodiment, motor 35 is a servo motor or a stepper motor. The telescopic device 33 can be an electric push rod or an electric cylinder.

[0062] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A foldable interception device, comprising two support bodies (10), with an interception assembly (20) installed between the two support bodies (10), characterized in that: The interception component (20) has several layers. Each layer of the interception component (20) includes two slide rods (21) and a folding mechanism installed between the two slide rods (21). The two slide rods (21) are respectively installed on two supports (10). The folding mechanism includes multiple folding units (22) that are connected in sequence. In the folded state, the projection of the interception component (20) on the horizontal plane is a wavy line structure.

2. The foldable interception device according to claim 1, characterized in that: The folding unit (22) includes a first hinge block (221), a second hinge block (222), a third hinge block (223), a fourth hinge block (224), and a railing (225); one end of the third hinge block (223) and the fourth hinge block (224) are rotatably connected along the Z-axis, and the upper and lower sides of the other end of the third hinge block (223) and the fourth hinge block (224) are respectively rotatably connected along the X-axis or the Y-axis to the railing (225). The ends of the two railings (225) located on one side of the third hinge block (223) are respectively rotatably installed with the first hinge block (221), and the first hinge block (221) extends toward the Y-axis. The ends of the two railings (225) located on one side of the fourth hinge block (224) are respectively rotatably installed with the second hinge block (222), and the second hinge block (222) extends toward the X-axis. The first hinge block (221) and the second hinge block (222) of the adjacent folding unit (22) are rotatably connected, and the first hinge block (221) and the second hinge block (222) located at both ends of the folding unit (22) are slidably connected to the slide rods (21) on both sides respectively.

3. The foldable interception device according to claim 2, characterized in that: One end of the first hinge block (221) is provided with a first protrusion (2211), and the first protrusion (2211) is provided with a longitudinal first through hole (2212). The other end of the first hinge block (221) is provided with a longitudinal first slot (2213) and a second through hole (2214) perpendicular to the first slot (2213). The second hinge block (222) has a first groove (2221) in the middle of one end, and a third through hole (2222) in the vertical direction is provided on the upper and lower sides of the first groove (2221). The other end of the second hinge block (222) has a second groove (2223) in the vertical direction, and a fourth through hole (2224) perpendicular to the second groove (2223). The end of the corresponding railing (225) extends into the first slot (2213) or the second slot (2223), and the railing (225) is rotatably connected to the second through hole (2214) or the fourth through hole (2224) via a pivot; The first protrusion (2211) is movably inserted into the first groove (2221), and the pivot passes through the third through hole (2222) and the first through hole (2212) so that the first hinge block (221) and the second hinge block (222) are rotatably connected.

4. A foldable interception device according to claim 2 or 3, characterized in that: The third hinge block (223) has a second groove (2231) in the middle of one end, and a fifth through hole (2232) is provided on the upper and lower sides of the second groove (2231). The other end of the third hinge block (223) has a longitudinal third slot (2233) and two sixth through holes (2234) perpendicular to the third slot (2233). The fourth hinge block (224) has a second protrusion (2241) at the middle of one end, and a longitudinal seventh through hole (2242) on the second protrusion (2241). The other end of the fourth hinge block (224) has a longitudinal fourth slot (2243) and two upper and lower eighth through holes (2244) perpendicular to the fourth slot (2243). The head end of the corresponding railing (225) extends into the third slot (2233) or the fourth slot (2243), and the railing (225) is rotatably connected to the sixth through hole (2234) or the eighth through hole (2244) via a pivot; The second protrusion (2241) is movably inserted into the second groove (2231), and the pivot passes through the fifth through hole (2232) and the seventh through hole (2242) so that the third hinge block (223) is rotatably connected to the fourth hinge block (224).

5. A foldable interception device according to claim 1, characterized in that: The slide bar (21) has a fixed seat (211) installed at both ends, and the fixed seat (211) is fixedly installed on the support body (10).

6. A foldable interception device according to claim 1, characterized in that: Both supports (10) are box structures, with one side of each box structure open. The slide bar (21) is installed on the inner wall of the open side of the support (10). In the folded state, the two supports (10) are brought together, and the interception component (20) is housed in the two supports (10).

7. A foldable interception device according to claim 6, characterized in that: Both supports (10) are equipped with casters (11) at the bottom, and both supports (10) are equipped with audible and visual alarm lights (12) at the top. Both supports (10) are equipped with handles (13) and connecting hooks (14) on the outside.

8. A foldable interception device according to claim 6 or 7, characterized in that: The front and rear sides of the lower end of the support body (10) are respectively equipped with support leg mechanisms (30).

9. A foldable interception device according to claim 8, characterized in that: Windows (15) are provided on the front and rear sides of the lower end of the support body (10); the support leg mechanism (30) includes a slide (32) and a telescopic device (33). The slide (32) is slidably connected to the support body (10). The telescopic device (33) is installed on the slide (32). The telescopic end of the telescopic device (33) extends downward. In the supported state, the two slides (32) extend from the windows (15) on the front and rear sides respectively. The telescopic device (33) is located outside the support body (10). The telescopic end of the telescopic device (33) extends out of the supporting ground.

10. A foldable interception device according to claim 9, characterized in that: A slide rail (31) is fixedly installed at the bottom of the support body (10); the slide block (32) includes a slider (321), a slide groove (322) is provided on the lower side of the slider (321), the slide groove (322) is slidably installed on the slide rail (31), the slider (321) is provided with a threaded hole (323) coaxial with the slide groove (322), a screw (34) is screwed into the threaded hole (323), one end of the screw (34) is connected to the output shaft of the motor (35) for transmission, and the motor (35) is installed on the support body (10); A support plate (324) is fixedly provided on one side of the slider (321). A longitudinal hole (325) is provided on the support plate (324). The telescopic device (33) is fixedly installed on the support plate (324). The telescopic end of the telescopic device (33) passes downward through the longitudinal hole (325). A sealing plate (326) is also fixed on the side of the slider (321) away from the motor (35); when the support leg mechanism (30) is retracted, the sealing plate (326) closes the window (15).

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