A semi-trailer protective guardrail

Abstract

A semi-trailer protective guardrail comprises: a guardrail outer frame; a plurality of protective components, the protective components comprising: a plurality of guardrail bodies, a first side plate, a second side plate, a movable side plate, a driving device and a first electromagnet, wherein adjacent guardrail bodies are connected via a first folding guardrail, the first side plate is connected to the guardrail body, and the first side plate is detachably connected to the guardrail outer frame, the second side plate is arranged on the guardrail outer frame, the movable side plate is movably connected to the second side plate, the movable side plate is arranged on the guardrail body, the driving device is arranged on the second side plate, the first electromagnet is arranged on the driving device, and the first electromagnet is magnetically connected to the movable side plate. Thus, the guardrail can be opened or closed in a narrow space, so that the semi-trailer can adapt to a variety of loading and unloading environments, and at the same time, pedestrians or vehicles passing by can be warned or blocked during the loading and unloading process, thereby reducing the occurrence of accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of semitrailer guardrails, and in particular to a semitrailer protective guardrail. Background Art

[0002] In the related art, the guardrail of a semi-trailer usually adopts a segmented guardrail structure. The guardrail near the bottom of the semi-trailer rotates downward to open, while the guardrail near the top of the semi-trailer rotates sideways to open. After opening the guardrail, the semi-trailer is convenient for relevant personnel to unload and load cargo.

[0003] With this type of guardrail, when the side of the semi-trailer is high or there is an object on the side of the semi-trailer parking area, rotating the guardrail downward can easily cause a collision with the guardrail. When the side space of the truck is relatively narrow, the sideways rotating guardrail is not convenient to open. At the same time, the guardrail can only protect the goods during transportation, and cannot play a protective role during the unloading and loading process, which may cause safety hazards to passers-by or vehicles during the unloading and loading process. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the above-mentioned technology at least to some extent.

[0005] To this end, the purpose of the present invention is to propose a semi-trailer protective guardrail that can open or close the guardrail in a narrow space, so that the semi-trailer can adapt to a variety of loading and unloading environments. At the same time, it can warn or block passing pedestrians or vehicles during the loading and unloading process to reduce the occurrence of accidents.

[0006] To achieve the above-mentioned purpose, the present invention proposes a semi-trailer protective guardrail, comprising: a guardrail outer frame; a plurality of protective components, wherein the protective components comprise: a plurality of adjacent guardrail bodies, a first side panel, a second side panel, a movable side panel, a driving device and a first electromagnet, wherein adjacent guardrail bodies are connected via a first folding guardrail, one side of the first side panel is connected to one end of a plurality of adjacent guardrail bodies, and the other side is detachably connected to the guardrail outer frame, the second side panel is fixedly arranged on the guardrail outer frame, the movable side panel is movably connected to the second side panel, the movable side panel is connected to the other end of a plurality of adjacent guardrail bodies, the first electromagnet is arranged on the driving device, and the first electromagnet is magnetically connected to the movable side panel; the driving device is used to drive the first electromagnet to move so as to control the flipping angle of the movable side panel.

[0007] In one embodiment of the present invention, the driving device includes: a first hydraulic telescopic device and a second hydraulic telescopic device, wherein a mounting groove is opened on the second side panel, the first electromagnet is arranged in the mounting groove, the first hydraulic telescopic device is arranged in the mounting groove, the second hydraulic telescopic device is arranged at the driving end of the first hydraulic telescopic device, and the first electromagnet is arranged at the driving end of the second hydraulic telescopic device.

[0008] In one embodiment of the present invention, the two protection components are longitudinally arranged on the guardrail outer frame, the first side panel is detachably connected to the guardrail outer frame through a snap lock, and the movable side panel is connected to the second side panel through a hinge.

[0009] In one embodiment of the present invention, the first folding guardrail comprises: four hinged parts and two hinged rods, wherein the two hinged rods are rotatably connected, and two ends of one hinged rod are respectively connected to the two hinged parts.

[0010] In one embodiment of the present invention, the hinged component includes: a mounting block, an articulated seat, a first spring and a second electromagnet, wherein the mounting block is arranged on the guardrail body, a slide groove is provided on the mounting block, the articulated seat is slidably connected to the slide groove, the articulated seat is hinged to the articulated rod, one end of the first spring is fixedly connected to the mounting block, the other end of the first spring is fixedly connected to the articulated seat, the second electromagnet is arranged in the slide groove, and the second electromagnet is magnetically connected to the articulated seat.

[0011] In one embodiment of the present invention, the first side panel is connected to one of the guardrail bodies among the multiple guardrail bodies through a second folding guardrail, and the movable side panel is connected to another of the multiple guardrail bodies through a third folding guardrail, wherein the second folding guardrail, the third folding guardrail and the first folding guardrail have the same structure.

[0012] In one embodiment of the present invention, the guardrail main body includes: a column, a warehouse body, a second spring, an abutment, a tube body and an airbag device, wherein the column is connected to the first folding guardrail, a slot is provided on the column, the warehouse body is rotatably arranged in the slot, one end of the second spring is connected to the inside of the warehouse body, the other end of the second spring is connected to the abutment, the abutment is slidably connected to the warehouse body, the tube body is fixedly arranged in the warehouse body, a cavity is provided in the tube wall of the tube body, a plurality of limiting slide grooves are provided in the inner wall of the tube body, and the plurality of limiting slide grooves are respectively connected to the cavity, a plurality of push plates are provided on the abutment, the plurality of push plates correspond to the plurality of limiting slide grooves one by one, the push plate is slidably connected to the limiting slide groove, and the push plate passes through the limiting slide groove to enter the cavity, and the airbag device is arranged in the cavity.

[0013] In one embodiment of the present invention, the abutment member includes: a push rod, an elastic push plate and a pressure sensor, wherein the push rod is slidably connected to the warehouse body, the elastic push plate is arranged at one end of the push rod, the other end of the second spring is arranged at the other end of the push rod, and the pressure sensor is arranged on the elastic push plate; the airbag device includes: an airbag and an inflation and suction dual-purpose pump, wherein the inflation and suction dual-purpose pump is arranged on the warehouse body, the airbag is arranged in the cavity, and the airbag is connected to the push plate, and the exhaust and suction ends of the inflation and suction dual-purpose pump are respectively connected to the airbag.

[0014] In one embodiment of the present invention, it also includes: a motor and a telescopic rod, wherein the motor is arranged on the first side panel, one end of the telescopic rod is rotatably connected to the movable side panel, and the other end of the telescopic rod is connected to the driving end of the motor, wherein the telescopic rod is respectively connected to the plurality of bin bodies in abutment with each other, and the motor is configured to drive the plurality of bin bodies to rotate through the telescopic rod.

[0015] In one embodiment of the present invention, the two protective components are longitudinally arranged on the guardrail outer frame in opposite output directions, grooves are provided on the inner walls on both sides of the guardrail outer frame, and third hydraulic telescopic devices are respectively provided in the two grooves, and the output ends of the two third hydraulic telescopic devices are respectively connected to the two first side panels.

[0016] Beneficial effects of the present invention:

[0017] The space occupied by the protection component can be reduced by folding the first folding guardrail, making it easier to use the protection component in a variety of narrow environments for loading and unloading.

[0018] Adjust the opening angle and telescopic length of the protection component according to whether there are non-staff (such as pedestrians or vehicles passing by) entering and exiting the loading and unloading location. When pedestrians or vehicles may pass by the loading and unloading location, rotate the protection component to make it perpendicular to the guardrail frame to block the passing pedestrians and vehicles, prevent pedestrians or vehicles from passing through the space between the loading and unloading point and the vehicle during the loading and unloading process, and reduce the occurrence of accidents. If pedestrians or vehicles will not pass by the loading and unloading location, rotate the protection component to make it parallel to the guardrail frame to provide more space for relevant personnel to move, which is convenient for loading and unloading.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A schematic diagram of the overall structure of a semi-trailer protective guardrail according to an embodiment of the present invention;

[0022] Figure 2 A schematic cross-sectional view of a semi-trailer protective guardrail according to an embodiment of the present invention;

[0023] Figure 3 is a schematic cross-sectional structural diagram of a first telescopic guardrail according to an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the structure of a guardrail body according to an embodiment of the present invention;

[0025] Figure 5 is a schematic cross-sectional structural diagram of a guardrail body according to an embodiment of the present invention;

[0026] Figure 6 A diagram showing a use state when a first electromagnet moves to a first position according to an embodiment of the present invention;

[0027] Figure 7 A diagram showing a state of use of a protective guardrail of a semi-trailer when it is retracted according to an embodiment of the present invention;

[0028] Figure 8 A diagram showing a use state when a first electromagnet moves to a second position according to an embodiment of the present invention;

[0029] Fig. 9 for Figure 6 A partial enlarged view of point A in the middle.

[0030] As shown in the figure: 1. guardrail frame, 2. protection assembly, 3. guardrail body, 4. first side panel, 5. second side panel, 6. movable side panel, 7. driving device, 8. first electromagnet, 9. first folding guardrail, 10. first hydraulic telescopic device, 11. second hydraulic telescopic device, 12. mounting groove, 13. buckle lock, 14. hinge, 15. hinge, 16. hinge rod, 17. mounting block, 18. hinge seat, 19. first spring, 20. second electromagnet, 21 , slide groove, 22, column, 23, warehouse body, 24, second spring, 25, abutment, 26, tube body, 27, airbag device, 28, slot, 29, cavity, 30, limit slide groove, 31, push plate, 32, push rod, 33, elastic push plate, 34, pressure sensor, 35, airbag, 36, inflation and suction dual-purpose pump, 37, motor, 38, telescopic rod, 39, groove, 40, third hydraulic telescopic device, 41, second folding guardrail, 42, third folding guardrail. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The following describes the semi-trailer protective guardrail according to an embodiment of the present invention with reference to the accompanying drawings.

[0033] The semi-trailer protective guardrail provided in the embodiment of the present invention can be applied to the side of the compartment of a transport vehicle such as a trailer and a semi-trailer to protect the transported goods.

[0034] like Figure 1 and Figure 2 As shown, the semi-trailer protective guardrail of the embodiment of the present invention may include: a guardrail outer frame 1 and two protective components 2. The protective component 2 includes: a plurality of guardrail bodies 3 adjacent to each other, a first side panel 4, a second side panel 5, a movable side panel 6, a driving device 7 and a first electromagnet 8. The adjacent guardrail bodies 3 are connected by a first folding guardrail 9, one side of the first side panel 4 is connected to one end of a plurality of guardrail bodies 3 adjacent to each other, and the other side is detachably connected to the guardrail outer frame 1, the second side panel 5 is fixedly arranged on the guardrail outer frame 1, the movable side panel 6 is movably connected to the second side panel 5, and the movable side panel 6 is connected to the other end of a plurality of guardrail bodies 3 adjacent to each other, the first electromagnet 8 is arranged on the driving device 7, and the first electromagnet 8 is magnetically connected to the movable side panel 6.

[0035] The driving device (7) is used to drive the first electromagnet (8) to move so as to control the flipping angle of the movable side panel (6). Further, the driving device 7 is configured such that when the first electromagnet 8 is driven to move to the first position and the movable side panel 6 is magnetically connected to the first electromagnet 8 (the movable side panel 6 can be flipped to a right angle position and magnetically connected to the first electromagnet 8), the flipped protective component 2 blocks non-staff members, and when the first electromagnet 8 is driven to move to the second position and the movable side panel 6 is magnetically connected to the first electromagnet 8 (the movable side panel 6 can be flipped to a flat angle position and magnetically connected to the first electromagnet 8), the flipped protective component 2 is parallel to the guardrail outer frame 1 to obtain a larger loading and unloading space.

[0036] It should be noted that when it is necessary to warn and block pedestrians or vehicles passing by during loading and unloading, the driving device 7 can move the first electromagnet 8 to the first position, and the protection component 2 is rotated and magnetically connected to the first electromagnet 8 (for example, the movable side plate 6 can be flipped 90° and magnetically connected to the first electromagnet 8). At this time, the protection component 2 (except the second side plate 5) can be perpendicular to the guardrail outer frame 1. When the vehicle is inside the factory and there are no pedestrians or vehicles, the driving device 7 can move the first electromagnet 8 to the second position, and the protection component 2 is rotated and magnetically connected to the first electromagnet 8 (for example, the movable side plate 6 can be flipped 180° and magnetically connected to the first electromagnet 8). At this time, the protection component 2 (except the second side plate 5) can be horizontal to the guardrail outer frame 1, which is more convenient for loading and unloading.

[0037] In order to clearly explain the above embodiment, in one embodiment of the present invention, as Figure 6 , Figure 8 and Fig. 9 As shown, the driving device 7 may include: a first hydraulic telescopic device 10 and a second hydraulic telescopic device 11. A mounting groove 12 is provided on the second side plate 5, the first electromagnet 8 is arranged in the mounting groove 12, the first hydraulic telescopic device 10 is arranged in the mounting groove 12, the second hydraulic telescopic device 11 is arranged at the driving end of the first hydraulic telescopic device 10, and the first electromagnet 8 is arranged at the driving end of the second hydraulic telescopic device 11.

[0038] It should be noted that the first hydraulic telescopic device 10 and the second hydraulic telescopic device 11 described in the above embodiment can cooperate to move the first electromagnet 8 to the first position and the second position. When the first electromagnet 8 is in the first position, its first side wall is in contact with the movable side plate 6. When the first electromagnet 8 is in the second position, its second side wall is in contact with the movable side plate 6. The first side wall and the second side wall are adjacent and form an angle of 90°.

[0039] In one embodiment of the present invention, Figure 1 and Figure 2As shown, two protection components 2 are longitudinally arranged on the guardrail outer frame 1, the first side panel 4 is detachably connected to the guardrail outer frame 1 through a snap lock 13, and the movable side panel 6 is connected to the second side panel 5 through a hinge 14.

[0040] It can be understood that the first side panel 4 described in this embodiment can be connected to and separated from the guardrail outer frame 1 through a snap lock 13, and the hinge 14 can be a cross hinge 14 that can rotate 180°.

[0041] In one embodiment of the present invention, Figure 3 and Figure 7 As shown, the first folding guardrail 9 may include: four hinged members 15 and two hinged rods 16 , wherein the two hinged rods 16 are rotatably connected, and two ends of one hinged rod 16 are respectively connected to the two hinged members 15 .

[0042] The hinge 15 may include: a mounting block 17, an articulated seat 18, a first spring 19 and a second electromagnet 20, wherein the mounting block 17 is arranged on the guardrail body 3, a slide groove 21 is opened on the mounting block 17, the articulated seat 18 is slidably connected to the slide groove 21, the articulated seat 18 is hinged to the articulated rod 16 (one articulated rod 16 corresponds to two articulated seats 18, and the two ends of one articulated rod 16 are respectively hinged to the two articulated seats 18), one end of the first spring 19 is fixedly connected to the mounting block 17, the other end of the first spring 19 is fixedly connected to the articulated seat 18, the second electromagnet 20 is arranged in the slide groove 21, and the second electromagnet 20 is magnetically connected to the articulated seat 18.

[0043] Specifically, the folding and stretching of the first folding guardrail 9 will drive the hinge seat 18 to move in the slide slot 21. When folding, the hinge seat 18 will press the first spring 19. When folded to a suitable length, the hinge seat 18 can be fixed by the second electromagnet 20 to fix its length. The folded protection assembly 2 occupies a smaller space, which is convenient for turning over the protection assembly 2 and can be used in narrow spaces.

[0044] Specifically, when pedestrians or vehicles may pass by the loading and unloading location, the extension of the telescopic end of the first hydraulic telescopic device 10 can drive the first electromagnet 8 to move horizontally to the first position along the axial direction of the telescopic end of the first hydraulic telescopic device 10 through the second hydraulic telescopic device 11. At this time, relevant personnel can separate the first side panel 4 from the guardrail outer frame 1 through the tower buckle lock, and rotate the protection component 2 except the second side panel 5 until the movable side panel 6 is magnetically connected to the first side wall of the first electromagnet 8. The protection component 2 can block passing pedestrians and vehicles by being perpendicular to the guardrail outer frame 1 to prevent pedestrians and vehicles from passing through the space between the loading and unloading point and the vehicle during the loading and unloading process, thereby preventing accidents. The fixation of the first electromagnet 8 can prevent the protection component 2 from swinging under the action of external force.

[0045] If the loading and unloading location does not pass by pedestrians or vehicles, and only relevant personnel pass by, the first hydraulic telescopic device 10 drives the first electromagnet 8 to move horizontally along the axis direction of the telescopic end of the first hydraulic telescopic device 10, and cooperates with the second hydraulic telescopic device 11 to drive the first electromagnet 8 to move horizontally along the axis direction of the telescopic end of the second hydraulic telescopic device 11, so that the first electromagnet 8 can be moved to the second position. At this time, the relevant personnel can separate the first side plate 4 from the guardrail outer frame 1 through the tower buckle lock, and rotate the protection component 2 except the second side plate 5 until the movable side plate 6 is magnetically connected to the second side wall of the first electromagnet 8. The protection component 2 can provide more space for the relevant personnel to move by being parallel to the guardrail outer frame 1, which is more convenient for loading and unloading.

[0046] During the entire movement of the protection assembly 2, if the surrounding environment may affect the normal rotation of the protection assembly 2, relevant personnel can fold the first folding guardrail 9 to reduce the space occupied by the protection assembly 2 to adapt to different loading and unloading environments.

[0047] Further, such as Figure 1 and Figure 2 As shown, the first side panel 4 is connected to one guardrail body 3 among the multiple guardrail bodies 3 through the second folding guardrail 41, and the movable side panel 6 is connected to another guardrail body 3 among the multiple guardrail bodies 3 through the third folding guardrail 42, wherein the second folding guardrail 41 and the third folding guardrail 42 have the same structure as the first folding guardrail 9.

[0048] It can be understood that the space occupied by the protective assembly 2 after being folded can be further reduced by adding the second folding guardrail 41 and the third folding guardrail 42 .

[0049] In one embodiment of the present invention, Figure 2 and Figure 6 As shown, two protection components 2 are arranged longitudinally on the guardrail outer frame 1 in opposite output directions, and grooves 39 are opened on the inner walls of both sides of the guardrail outer frame 1. Third hydraulic telescopic devices 40 are respectively arranged in the two grooves 39, and the output ends of the two third hydraulic telescopic devices 40 are respectively connected to the two first side panels 4.

[0050] It should be noted that two protective components 2 described in this embodiment can be provided, and the installation directions of the two protective components 2 are different. After being installed in a longitudinal arrangement, the second side panel 5 located at the lower protective component 2 is located below the first side panel 4 located at the upper protective component 2.

[0051] It can be understood that the third hydraulic telescopic device 40 described in this embodiment can adjust the distances of the two protection components 2 relative to the ground respectively, and make the two protection components 2 form a loading and unloading channel.

[0052] In one embodiment of the present invention, Figure 4 and Figure 5 As shown, the guardrail body 3 may include: a column 22, a bin 23, a second spring 24, an abutment 25, a tube 26 and an airbag device 27. The column 22 is connected to the first folding guardrail 9. A slot 28 is provided on the column 22. The bin 23 is rotatably arranged in the slot 28. One end of the second spring 24 is connected to the inside of the bin 23. The other end of the second spring 24 is connected to the abutment 25. The abutment 25 is slidably connected to the bin 23. The tube 26 is fixed. It is arranged in the warehouse body 23, and a cavity 29 is opened in the wall of the tube body 26. A plurality of limiting grooves 21 are opened on the inner wall of the tube body 26. The plurality of limiting grooves 21 are respectively connected with the cavity 29. A plurality of push plates 31 are arranged on the abutment member 25. The plurality of push plates 31 correspond to the plurality of limiting grooves 21 one by one. The push plates 31 are slidably connected with the limiting grooves 21, and the push plates 31 penetrate the limiting grooves 21 into the cavity 29. The airbag device 27 is arranged in the cavity 29.

[0053] The abutment member 25 includes: an abutment rod 32, an elastic abutment plate 33 and a pressure sensor 34, wherein the abutment rod 32 is slidably connected to the chamber body 23, the elastic abutment plate 33 is arranged at one end of the abutment rod 32, the other end of the second spring 24 is arranged at the other end of the abutment rod 32, and the pressure sensor 34 is arranged on the elastic abutment plate 33. The airbag device 27 includes: an airbag 35 and an inflation and suction dual-purpose pump 36, wherein the inflation and suction dual-purpose pump 36 is arranged on the chamber body 23, the airbag 35 is arranged in the cavity 29, and the airbag 35 is connected to the push plate 31, and the exhaust and suction ends of the inflation and suction dual-purpose pump 36 are respectively connected to the airbag 35.

[0054] Specifically, since the entire vehicle is not always fully loaded with goods during transportation, when the goods are not fully loaded, the goods may continuously hit the guardrail during transportation, reducing the service life of the guardrail, and hard collisions may also affect the goods themselves. In this case, the relevant personnel can rotate the warehouse body 23 to move it out of the slot 28, and the air-inflating and air-inhaling dual-purpose pump 36 quickly inflates the airbag 35. The swollen airbag 35 will push the push plate 31 to move in the tube body 26. The push plate 31 can drive the elastic abutment plate 33 to approach the goods through the abutment rod 32, and after the elastic abutment plate 33 contacts the goods, when the real-time pressure value of the pressure sensor 34 is within the preset threshold range, the inflation of the airbag 35 is stopped, and the goods are limited by the abutment member 25. When the abutment member 25 needs to be reset, the air-inflating and air-inhaling dual-purpose pump 36 quickly deflates the airbag 35, and the abutment member 25 is reset by the rebound of the second spring 24. The airbag 35 is inflated and deflated by the air-inflating and air-inhaling dual-purpose pump 36 to adjust the limiting strength of the abutment 25. The limiting strength can be adjusted according to the type of goods, and hard limiting or flexible limiting can be selectively performed. For example, when transporting goods such as electronic screens, pianos, marble slabs, containers filled with liquids, etc., the limiting strength should be reduced and flexible limiting should be performed to avoid rigid collision between the goods and the abutment 25.

[0055] In one embodiment of the present invention, Figure 1 , Figure 6 and Figure 7 As shown, it may also include: a motor 37 and a telescopic rod 38, wherein the motor 37 is arranged on the first side panel 4, one end of the telescopic rod 38 is rotatably connected to the movable side panel 6, and the other end of the telescopic rod 38 is connected to the driving end of the motor 37, wherein the telescopic rod 38 is respectively connected to the multiple warehouse bodies 23 in abutting relation, and the motor 37 is configured to drive the multiple warehouse bodies 23 to rotate through the telescopic rod 38.

[0056] It should be noted that one end of the telescopic rod 38 described in this embodiment is connected to a rotating shaft via a connecting plate, the rotating shaft is arranged on the movable side plate 6 via a bearing seat, and the driving end of the motor 37 is connected to the other end of the telescopic rod 38 via the connecting plate.

[0057] It can be understood that the motor 37 described in this embodiment can drive the telescopic rod 38 to rotate, and the position of the warehouse body 23 can be automatically adjusted by adjusting the position of the telescopic rod 38.

[0058] It should be noted that the motor 37 mentioned in the above embodiment has a brake, which can quickly stop the motor 37, and a reduction box is provided on the driving end of the motor 37, the driving end of the motor 37 is connected to the input end of the reduction box, and the output end of the reduction box constitutes the driving end of the motor 37, and the speed output by the motor 37 is adjusted by the reduction box. The protection component 2 can be connected to an external controller, and the operation of the semi-trailer protection guardrail can be conveniently controlled by the external controller.

[0059] In summary, the semi-trailer protective guardrail of the embodiment of the present invention can open or close the guardrail in a narrow space, allowing the semi-trailer to adapt to a variety of loading and unloading environments. At the same time, it can warn or block passing pedestrians or vehicles during the loading and unloading process to reduce the occurrence of accidents.

[0060] In the description of this specification, the terms "second" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "second" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0062] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A semi-trailer protective guardrail, characterized in that: include: Guardrail frame (1); A plurality of protection components (2), the protection components (2) comprising: a plurality of mutually adjacent guardrail bodies (3), a first side plate (4), a second side plate (5), a movable side plate (6), a driving device (7) and a first electromagnet (8), wherein: Adjacent guardrail bodies (3) are connected via a first folding guardrail (9); one side of the first side panel (4) is connected to one end of a plurality of mutually adjacent guardrail bodies (3); the other side is detachably connected to the guardrail outer frame (1); the second side panel (5) is fixedly arranged on the guardrail outer frame (1); the movable side panel (6) is movably connected to the second side panel (5); the movable side panel (6) is connected to the other ends of a plurality of mutually adjacent guardrail bodies (3); the first electromagnet (8) is arranged on the driving device (7); the first electromagnet (8) is magnetically connected to the movable side panel (6); the driving device (7) is used to drive the first electromagnet (8) to move so as to control the flipping angle of the movable side panel (6); The guardrail body (3) comprises: a column (22), a bin body (23), a second spring (24), an abutment (25), a tube body (26) and an airbag device (27), wherein the column (22) is connected to the first folding guardrail (9), a slot (28) is provided on the column (22), the bin body (23) is rotatably arranged in the slot (28), one end of the second spring (24) is connected to the inside of the bin body (23), the other end of the second spring (24) is connected to the abutment (25), the abutment (25) is slidably connected to the bin body (23), and the tube body (26) is fixedly arranged The airbag device (27) is disposed in the warehouse body (23); a cavity (29) is formed in the wall of the tube body (26); a plurality of limiting grooves (30) are formed in the inner wall of the tube body (26); the plurality of limiting grooves (30) are respectively connected to the cavity (29); a plurality of push plates (31) are provided on the abutment member (25); the plurality of push plates (31) correspond to the plurality of limiting grooves (30) one by one; the push plates (31) are slidably connected to the limiting grooves (30); and the push plates (31) penetrate the limiting grooves (30) and enter the cavity (29); and the airbag device (27) is disposed in the cavity (29); The abutment member (25) comprises: a push rod (32), an elastic push plate (33) and a pressure sensor (34), wherein the push rod (32) is slidably connected to the chamber body (23), the elastic push plate (33) is arranged at one end of the push rod (32), the other end of the second spring (24) is arranged at the other end of the push rod (32), and the pressure sensor (34) is arranged on the elastic push plate (33); the airbag device (27) comprises: an airbag (35) and an inflation / inhalation dual-purpose pump (36), wherein the inflation / inhalation dual-purpose pump (36) is arranged on the chamber body (23), the airbag (35) is arranged in the cavity (29), and the airbag (35) is connected to the push plate (31), and the exhaust and suction ends of the inflation / inhalation dual-purpose pump (36) are respectively connected to the airbag (35).

2. The semi-trailer protective guardrail according to claim 1, characterized in that: The driving device (7) comprises: a first hydraulic telescopic device (10) and a second hydraulic telescopic device (11), wherein a mounting groove (12) is provided on the second side plate (5), the first electromagnet (8) is arranged in the mounting groove (12), the first hydraulic telescopic device (10) is arranged in the mounting groove (12), the second hydraulic telescopic device (11) is arranged at a driving end of the first hydraulic telescopic device (10), and the first electromagnet (8) is arranged at a driving end of the second hydraulic telescopic device (11).

3. The semi-trailer protective guardrail according to claim 1, characterized in that: The two protection components (2) are longitudinally arranged on the guardrail outer frame (1); the first side panel (4) is detachably connected to the guardrail outer frame (1) via a snap lock (13); and the movable side panel (6) is connected to the second side panel (5) via a hinge (14).

4. The semi-trailer protective guardrail according to claim 1, characterized in that: The first folding guardrail (9) comprises: four hinged parts (15) and two hinged rods (16), wherein the two hinged rods (16) are rotatably connected, and two ends of one hinged rod (16) are respectively connected to the two hinged parts (15).

5. The semi-trailer protective guardrail according to claim 4, characterized in that: The hinged component (15) comprises: a mounting block (17), an articulated seat (18), a first spring (19) and a second electromagnet (20), wherein the mounting block (17) is arranged on the guardrail body (3), a slide groove (21) is provided on the mounting block (17), the articulated seat (18) is slidably connected to the slide groove (21), the articulated seat (18) is hinged to the articulated rod (16), one end of the first spring (19) is fixedly connected to the mounting block (17), the other end of the first spring (19) is fixedly connected to the articulated seat (18), the second electromagnet (20) is arranged in the slide groove (21), and the second electromagnet (20) is magnetically connected to the articulated seat (18).

6. The semi-trailer protective guardrail according to claim 1, characterized in that: The first side panel (4) is connected to one of the guardrail bodies (3) through a second folding guardrail (41), and the movable side panel (6) is connected to another of the guardrail bodies (3) through a third folding guardrail (42), wherein the second folding guardrail (41) and the third folding guardrail (42) have the same structure as the first folding guardrail (9).

7. The semi-trailer protective guardrail according to claim 1, characterized in that: Also includes: A motor (37) and a telescopic rod (38), wherein the motor (37) is arranged on the first side plate (4), one end of the telescopic rod (38) is rotatably connected to the movable side plate (6), and the other end of the telescopic rod (38) is connected to the driving end of the motor (37), wherein the telescopic rod (38) is respectively abutted against the plurality of bin bodies (23), and the motor (37) is configured to drive the plurality of bin bodies (23) to rotate through the telescopic rod (38).

8. The semi-trailer protective guardrail according to claim 1, characterized in that: The two protection components (2) are arranged longitudinally on the guardrail outer frame (1) in opposite output directions, and grooves (39) are provided on the inner walls of both sides of the guardrail outer frame (1). Third hydraulic telescopic devices (40) are respectively provided in the two grooves (39), and the output ends of the two third hydraulic telescopic devices (40) are respectively connected to the two first side plates (4).

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