Guardrail

Abstract

The utility model discloses a guardrail, which relates to the technical field of protective equipment and comprises two frame components, one frame component is movably connected with the other frame component, and the movable frame component can be positioned above the other frame component and in front of or behind the other frame component in the moving process. The two frame assemblies can be unfolded and folded in the left-right direction. The guardrail provided by the utility model not only is more convenient for workers or articles to pass through, but also is better in safety.

Description

Technical Field

[0001] This utility model relates to the field of protective equipment technology, and in particular to a guardrail. Background Technology

[0002] High-altitude work platforms such as train maintenance platforms or aircraft maintenance platforms are equipped with guardrails to provide safety protection for workers. However, with existing guardrails, when workers or objects need to temporarily pass over the guardrails, they have to climb over the top of the guardrails, which is not only cumbersome but also unsafe. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a guardrail that not only makes it easier for workers or objects to pass through, but also provides better safety.

[0004] According to an embodiment of the present utility model, the guardrail includes two frame components, one of which is movably connected to the other. During its movement, the movable frame component can be positioned above, in front of, or behind the other frame component, and both frame components can be expanded and retracted in the left-right direction.

[0005] The guardrail according to the embodiments of this utility model has at least the following beneficial effects:

[0006] The guardrail consists of two frame components. The bottom of the first frame component can be mounted on an aerial work platform or other necessary equipment. The second frame component is movably connected to the first frame component. By moving the second frame component above the first frame component and unfolding both frame components laterally, the guardrail can be adjusted to its working state. When workers or objects need to temporarily cross the guardrail, the two frame components can be folded left and right, allowing workers or objects to pass through one side of the guardrail. Alternatively, the second frame component can be moved to the front or rear of the first frame component, allowing workers or objects to pass over the guardrail. Furthermore, both frame components can be folded left and right, with the second frame component positioned in front of or behind the first frame component, resulting in a fully folded guardrail. This allows workers or objects to pass through the guardrail from one side and above without climbing, making crossing the guardrail more convenient and safer.

[0007] According to some embodiments of the present invention, the frame assembly includes an installation frame and a movable frame. The movable frame is movably connected to the installation frame and can move to an unfolded state located on one side of the installation frame in the left-right direction, and to a folded state stored within the installation frame.

[0008] According to some embodiments of the present invention, one side of the mounting frame is provided with a vertically extending shaft, one side of the movable frame is rotatably sleeved on the vertical shaft, and the movable frame switches between the unfolded state and the retracted state by rotation.

[0009] According to some embodiments of the present invention, the mounting frame is provided with two first limiting holes, and the movable frame is provided with a second limiting hole. When the movable frame rotates to the unfolded state and the retracted state, the second limiting hole can be aligned with the two first limiting holes respectively, so as to insert a limiting pin to restrict the rotation of the movable frame.

[0010] According to some embodiments of the present invention, the movable frame can be slidably adjusted along the left and right directions, and the movable frame can be switched between the unfolded state and the folded state by sliding.

[0011] According to some embodiments of the present invention, the mounting frame is provided with a crossbeam extending in the left-right direction, the crossbeam having a sliding hole, the movable frame including a vertical rod and a horizontal rod, the horizontal rod being connected to one side of the vertical rod and slidably installed in the sliding hole.

[0012] According to some embodiments of this utility model, one end of the sliding hole is provided with two rollers arranged vertically, and the crossbar is fitted between the two rollers. The end of the crossbar away from the vertical bar is provided with a limiting plate. When the movable frame slides to the unfolded state, the limiting plate abuts against the rollers to restrict the crossbar from sliding out of the sliding hole.

[0013] According to some embodiments of the present invention, one of the mounting frames is rotatably connected to the top of the other mounting frame, and the rotation axis between the two mounting frames extends along the left-right direction.

[0014] According to some embodiments of the present invention, one of the mounting frames is provided with a locking buckle, and the other mounting frame is provided with a corresponding latch. When the two mounting frames rotate relative to each other to be arranged in the vertical direction, the locking buckle can engage with the latch to restrict the relative rotation of the two mounting frames.

[0015] According to some embodiments of the present invention, the two movable frames are hinged to each other; or, the two movable frames are separately arranged.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and some advantages will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a structural schematic diagram of the guardrail in working state according to one embodiment of the present utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure when the active frame is in the retracted state;

[0020] Figure 3 for Figure 1 A structural diagram showing the two frame components arranged in the front-to-back direction;

[0021] Figure 4 for Figure 1 A structural diagram of the guardrail when it is in a fully folded state;

[0022] Figure 5 for Figure 1 A schematic diagram of the structure of one of the installation frames;

[0023] Figure 6 for Figure 1 A schematic diagram of another mounting frame in the diagram;

[0024] Figure 7 for Figure 1 A schematic diagram of the activity framework in the diagram;

[0025] Figure 8 This is a structural schematic diagram of the guardrail in working state according to another embodiment of the present utility model;

[0026] Figure 9 for Figure 8 A schematic diagram of the structure when the active frame is in the retracted state;

[0027] Figure 10 for Figure 8 A structural diagram of the guardrail when it is in a fully folded state;

[0028] Figure 11 for Figure 8 A schematic diagram of the structure of one of the installation frames;

[0029] Figure 12 for Figure 8 A schematic diagram of another mounting frame in the diagram;

[0030] Figure 13 for Figure 8 A schematic diagram showing the connection between the two active frames;

[0031] Figure 14 for Figure 8A schematic diagram of the roller structure.

[0032] Icon labels:

[0033] Framework component 10;

[0034] Mounting frame 100; vertical shaft 101; first limiting hole 102; limiting pin 103; crossbeam 104; sliding hole 105; locking buckle 106; hinge 107; kick plate 108;

[0035] Movable frame 200; Second limiting hole 201; Vertical rod 202; Horizontal rod 203; Limiting plate 204; Sleeve 205; U-shaped tube 206; Hinge 207;

[0036] Roller 300; Roller body 301; Bearing 302; Bushing 303; Limiting sleeve 304; Bolt 305. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0040] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0041] The following is for reference. Figures 1 to 14 Describes a guardrail according to an embodiment of the present utility model.

[0042] refer to Figures 1 to 13As shown, the guardrail according to an embodiment of the present utility model includes two frame components 10, one of which is movably connected to the other. The movable frame component 10 can be positioned above, in front of, or behind the other frame component 10 during its movement. Both frame components 10 can be extended and retracted in the left and right directions. When the frame component 10 is extended in the left and right directions, the protective area can be increased. When the frame component 10 is retracted in the left and right directions, the protective area can be reduced.

[0043] In this embodiment, the bottom of the first frame component 10 can be mounted on an aerial work platform or other necessary equipment. The second frame component 10 is movably connected to the first frame component 10. By moving the second frame component 10 to a position above the first frame component 10 and unfolding both frame components 10 in the left-right direction, the guardrail can be adjusted to its working state. When workers or objects need to temporarily pass over the guardrail, the two frame components 10 can be folded in the left-right direction, allowing workers or objects to pass through one side of the guardrail. Alternatively, the second frame component 10 can be moved to a position in front of or behind the first frame component 10, allowing workers or objects to pass over the guardrail. Furthermore, the two frame components 10 can be folded in the left-right direction, with the second frame component 10 moved to a position in front of or behind the first frame component 10, resulting in a fully folded guardrail. This allows workers or objects to pass through one side and above the guardrail without climbing it, making passage more convenient and safer.

[0044] refer to Figures 1 to 13 As shown, in some embodiments of this utility model, the frame assembly 10 includes a mounting frame 100 and a movable frame 200. The movable frame 200 is movably connected to the mounting frame 100. The movable frame 200 can move to an unfolded state located on one side of the mounting frame 100 in the left-right direction, and to a folded state stored within the mounting frame 100. For example, both the mounting frame 100 and the movable frame 200 can be flat frame structures. When the guardrail is in operation, the thickness direction of the mounting frame 100 and the movable frame 200 can be the front-back direction.

[0045] In this embodiment, when the movable frame 200 is moved to an unfolded state located on one side of the mounting frame 100 in the left-right direction, the protective area of ​​the guardrail can be increased, which can reduce the risk of workers falling. When workers or objects need to temporarily pass through the guardrail, the movable frame 200 can be moved to a retracted state stored in the mounting frame 100, which can facilitate workers or objects to pass through one side of the guardrail. The structure is simple and the operation is convenient.

[0046] refer to Figures 1 to 7 As shown, in some embodiments of this utility model, a vertical shaft 101 extending vertically is provided on one side of the mounting frame 100, and one side of the movable frame 200 is rotatably fitted onto the vertical shaft 101. The movable frame 200 can switch between an unfolded state and a retracted state by rotation. For example, columns can be provided on both sides of the mounting frame 100 in the left and right directions, with the columns extending vertically. One of the columns forms the vertical shaft 101. The movable frame 200 may include a sleeve 205 and a U-shaped tube 206. The sleeve 205 is rotatably fitted onto the vertical shaft 101, and the two ends of the U-shaped tube 206 are respectively connected to the top and bottom ends of the sleeve 205. In this way, the movable frame 200 can be rotated to an unfolded state located on one side of the mounting frame 100 in the left and right directions. In this state, the protective area of ​​the guardrail is larger, which can reduce the risk of workers falling. The movable frame 200 can also be rotated to be stored inside the mounting frame 100. In this state, it is convenient for workers to pass through one side of the guardrail. The structure is simple and the operation is convenient.

[0047] refer to Figures 1 to 7 As shown, in some embodiments of this utility model, the mounting frame 100 is provided with two first limiting holes 102, and the movable frame 200 is provided with a second limiting hole 201. When the movable frame 200 rotates to the unfolded state and the retracted state, the second limiting hole 201 can be aligned with the two first limiting holes 102 respectively, so as to insert a limiting pin 103 to restrict the rotation of the movable frame 200. For example, the two first limiting holes 102 can be provided at the top of the mounting frame 100 and arranged in the left-right direction. The two first limiting holes 102 can be located on opposite sides of the axis of the vertical shaft 101 of the mounting frame 100, and the second limiting hole 201 can be provided at the top of the movable frame 200.

[0048] In this embodiment, when the movable frame 200 rotates to the unfolded state, the second limiting hole 201 aligns perfectly with one of the first limiting holes 102. Inserting the limiting pin 103 then prevents the movable frame 200 from rotating arbitrarily, resulting in better protection and safety. When the movable frame 200 rotates to the retracted state, the second limiting hole 201 aligns perfectly with the other first limiting hole 102. Inserting the limiting pin 103 then prevents the movable frame 200 from rotating arbitrarily, thus avoiding any obstruction to the passage of personnel and objects.

[0049] refer to Figures 8 to 13As shown, in some embodiments of this utility model, the movable frame 200 can slide and adjust in the left and right direction, and the movable frame 200 can switch between an unfolded state and a retracted state by sliding. For example, when the movable frame 200 slides to the left relative to the mounting frame 100, the movable frame 200 can slide to the unfolded state located on the left side of the mounting frame 100. In this state, the protective area of ​​the guardrail is larger, which can reduce the risk of workers falling. When the movable frame 200 slides to the right relative to the mounting frame 100, the movable frame 200 can slide to be stored inside the mounting frame 100. In this way, it is convenient for workers to pass through from one side of the guardrail. The structure is simple and the operation is convenient.

[0050] refer to Figures 8 to 13 As shown, in some embodiments of this utility model, the mounting frame 100 is provided with a crossbeam 104 extending in the left-right direction, the crossbeam 104 forming a sliding hole 105, the movable frame 200 includes a vertical rod 202 and a horizontal rod 203, the horizontal rod 203 is connected to one side of the vertical rod 202, and the horizontal rod 203 is slidably installed in the sliding hole 105. For example, each of the two mounting frames 100 can have one or more horizontal beams 104 extending in the left-right direction. The horizontal beams 104 are hollow structures and have sliding holes 105 extending in the left-right direction. The movable frame 200 can have one vertical rod 202. On the same side of the vertical rod 202, one or more horizontal rods 203 can be provided. The horizontal rods 203 and the sliding holes 105 can correspond one-to-one. The horizontal rods 203 are slidably installed in the corresponding sliding holes 105. By pushing the movable frame 200 in the left-right direction, the horizontal rods 203 can slide in the sliding holes 105, thereby allowing the movable frame 200 to slide in the left-right direction relative to the mounting frame 100. The structure is simple, the operation is convenient, and the connection between the movable frame 200 and the mounting frame 100 is relatively stable.

[0051] It should be noted that in some other embodiments of this utility model, the movable frame 200 may also be in other sliding manner. For example, a slide rail may be provided on the mounting frame 100, and the movable frame 200 may be slidably mounted on the slide rail.

[0052] refer to Figures 8 to 14As shown, in some embodiments of this utility model, one end of the sliding hole 105 is provided with two rollers 300 arranged vertically, and the crossbar 203 is fitted between the two rollers 300. The end of the crossbar 203 away from the vertical bar 202 is provided with a limiting plate 204. When the movable frame 200 slides to the unfolded state, the limiting plate 204 abuts against the rollers 300 to restrict the crossbar 203 from sliding out of the sliding hole 105. For example, the roller 300 may include a roller body 301, two bearings 302, a bushing 303, two limiting sleeves 304, and a bolt 305. The roller body 301 can be rotatably sleeved on the outside of the bushing 303 by the two bearings 302. The two limiting sleeves 304 can be sleeved on the outside of the bushing 303 and located on opposite sides of the two bearings 302 to lock the bearings 302. The bushing 303 can be sleeved on the outside of the bolt 305. The bolt 305 can be installed on the crossbeam 104. The outer peripheral wall of the roller body 301 can be formed with an arc-shaped groove. The arc-shaped groove surrounds the roller body 301. The crossbar 203 is fitted between the two roller bodies 301 and is in contact with the roller body 301.

[0053] In this embodiment, the crossbar 203 is slidably installed between two rollers 300, making the sliding smoother and reducing the occurrence of jamming. In addition, the crossbar 203 is provided with a limiting plate 204, so that when the crossbar 203 slides to the point where it is about to slide out of the sliding hole 105, the limiting plate 204 can abut against the two rollers 300 to prevent the crossbar 203 from sliding out of the sliding hole 105, thus improving safety.

[0054] It should be noted that the roller 300 can also be other structures. For example, the bearing 302 can be directly mounted on the outside of the bolt 305.

[0055] refer to Figures 1 to 4 as well as Figures 8 to 10 As shown, in some embodiments of this utility model, one mounting frame 100 is rotatably connected to the top of another mounting frame 100, and the rotation axis between the two mounting frames 100 extends in the left-right direction. For example, the two mounting frames 100 can be defined as a first mounting frame and a second mounting frame, respectively. The bottom end of the first mounting frame can be used to install on an aerial work platform or other required equipment. The end of the second mounting frame near the first mounting frame can be rotatably connected to the top of the first mounting frame through multiple hinges 107. The structures of the first mounting frame and the second mounting frame can be the same or can have certain differences.

[0056] In this embodiment, the second mounting frame can rotate around the left-right axis. When the second mounting frame rotates to be above the first mounting frame, the guardrail has a larger protective area, which can reduce the risk of workers falling. When workers or objects need to pass temporarily, the second mounting frame rotates to be in front of or behind the first mounting frame, so that workers or objects can pass over the guardrail. The structure is simple and the operation is convenient.

[0057] It should be noted that one of the frame components 10 can also be movably connected to another frame component 10 in other ways. For example, it can be connected to another frame component 10 by sliding vertically. During the sliding process, it can be located above, in front of, or behind another frame component 10.

[0058] refer to Figures 1 to 3 As shown, in some embodiments of this utility model, a kick plate 108 may be provided at the bottom of the first mounting frame. The kick plate 108 prevents workers from getting their feet caught in the first mounting frame and sustaining injuries.

[0059] refer to Figures 1 to 4 as well as Figures 8 to 10 As shown, in some embodiments of this utility model, one of the mounting frames 100 is provided with a locking buckle 106, and the other mounting frame 100 is provided with a corresponding latch. When the two mounting frames 100 rotate relative to each other to be arranged in the vertical direction, the locking buckle 106 can be engaged with the latch to restrict the relative rotation of the two mounting frames 100.

[0060] In this embodiment, when the two mounting frames 100 rotate relative to each other to be arranged in the vertical direction, the locking buckle 106 can be engaged with the latch, thereby restricting the relative rotation of the two mounting frames 100, keeping the guardrail in working condition, and providing better protection and safety.

[0061] It should be noted that the locking buckle 106 is a common fastening structure, and its structure and working principle will not be described in detail here.

[0062] refer to Figures 8 to 10 as well as Figure 13 As shown, in some embodiments of this utility model, the two movable frames 200 are hinged to each other. For example, when the movable frame 200 is slidably connected to the mounting frame 100, the two movable frames 200 can be hinged together by a hinge 207. This not only makes the structure stronger, but also allows the two movable frames 200 to slide synchronously and more smoothly. In addition, when the two mounting frames 100 rotate relative to each other, the two movable frames 200 can also rotate relative to each other accordingly, thereby avoiding interference with the relative rotation of the two mounting frames 100.

[0063] It should be noted that in some other embodiments of this utility model, the two movable frames 200 can also be set separately. For example, when the movable frame 200 is rotatably connected to the mounting frame 100, the two movable frames 200 can also be set separately instead of being connected together. In this way, interference with the relative rotation of the two mounting frames 100 can also be avoided.

[0064] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A guardrail, characterized in that, include: Two frame components, one of which is movably connected to the other, the movable frame component being able to be positioned above, in front of or behind the other frame component during its movement, and both frame components being able to expand and retract in the left-right direction.

2. The guardrail according to claim 1, characterized in that, The frame assembly includes a mounting frame and a movable frame. The movable frame is movably connected to the mounting frame and can move to an unfolded state located on one side of the mounting frame in the left-right direction, and to a folded state stored within the mounting frame.

3. The guardrail according to claim 2, characterized in that, One side of the mounting frame is provided with a vertically extending shaft, and one side of the movable frame is rotatably fitted onto the vertical shaft. The movable frame switches between the unfolded state and the retracted state by rotation.

4. The guardrail according to claim 3, characterized in that, The mounting frame is provided with two first limiting holes, and the movable frame is provided with a second limiting hole. When the movable frame rotates to the unfolded state and the retracted state, the second limiting hole can be aligned with the two first limiting holes respectively, so as to insert a limiting pin to restrict the rotation of the movable frame.

5. The guardrail according to claim 2, characterized in that, The movable frame can slide and adjust along the left and right directions, and the movable frame can switch between the unfolded state and the folded state by sliding.

6. The guardrail according to claim 5, characterized in that, The mounting frame is provided with a crossbeam extending in the left-right direction, the crossbeam forming a sliding hole, the movable frame includes a vertical rod and a horizontal rod, the horizontal rod is connected to one side of the vertical rod, and the horizontal rod is slidably installed in the sliding hole.

7. The guardrail according to claim 6, characterized in that, Two rollers arranged vertically are provided at one end of the sliding hole. The crossbar is fitted between the two rollers. A limiting plate is provided at the end of the crossbar away from the vertical bar. When the movable frame slides to the unfolded state, the limiting plate abuts against the rollers to prevent the crossbar from sliding out of the sliding hole.

8. The guardrail according to claim 2, characterized in that, One of the mounting frames is rotatably connected to the top of the other mounting frame, and the axis of rotation between the two mounting frames extends in the left-right direction.

9. The guardrail according to claim 8, characterized in that, One of the mounting frames is provided with a locking buckle, and the other mounting frame is provided with a corresponding latch. When the two mounting frames rotate relative to each other to be arranged in the vertical direction, the locking buckle can engage with the latch to restrict the relative rotation of the two mounting frames.

10. The guardrail according to claim 2, characterized in that, The two movable frames are hinged to each other; or, the two movable frames are separate.

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