Maintenance warning fence

By installing connecting components and sliding warning signs on the maintenance enclosure, the problem of inconvenient use of warning signs is solved, achieving low-cost and convenient warning display, and avoiding the high cost and easy damage of LED displays.

CN224134370UActive Publication Date: 2026-04-17CHINA YANGTZE POWER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA YANGTZE POWER
Filing Date
2025-05-12
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing maintenance enclosure is inconvenient for hanging warning signs, there is an insufficient number of warning signs or the wrong warning signs are taken, and the LED display screen is costly, easily damaged and inconvenient to charge when used in the hydropower station plant.

Method used

A connecting component is installed between the first and second horizontal bars of the fence. Warning signs are installed by sliding, displaying different warning messages through windows. The extension rod and spring structure prevent the warning signs from sliding. The design is low-cost and avoids charging issues.

Benefits of technology

It achieves low-cost and convenient warning sign display, avoiding the high cost and easy damage of LED displays, making it more convenient to use, and less prone to damage during transportation and stacking.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an overhaul warning fence which comprises at least two stand columns, a base is connected to the bottoms of the stand columns, a first cross bar and a second cross bar are connected between the adjacent stand columns, the first cross bar is located above the second cross bar, a connecting assembly is further connected and installed between the first cross bar and the second cross bar, and the connecting assembly comprises two first side plates. The two first side plates are both located on one side, and the two first side plates are spaced by a certain distance to form a window. At least one first groove is formed in the lower side of the first cross bar in the length direction, at least one second groove is formed in the upper side of the second cross bar in the length direction, the first groove is opposite to the second groove, and at least one warning board is installed in the first groove and the second groove in a sliding mode. Compared with the prior art, the maintenance warning fence is relatively low in manufacturing cost, does not involve the charging problem during use, is more convenient to use, and is not prone to damage in the carrying and stacking process.
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Description

Technical Field

[0001] This utility model relates to the field of maintenance enclosure technology, and in particular to a maintenance warning enclosure. Background Technology

[0002] Within hydropower stations, it is necessary to fence off the equipment and maintenance areas, and to hang warning signs on the fences, during equipment maintenance. Especially during equipment maintenance, it is necessary to move the fences and corresponding warning signs from the warehouse. Since there are several types of warning signs, there are sometimes insufficient signs or incorrect signs are taken, causing inconvenience. Furthermore, the signs are tied to the fences with thin wire, which also results in uneven hanging. Therefore, a maintenance warning fence was designed.

[0003] A search revealed that Chinese patent document CN213654436U, published on July 9, 2021, discloses a safety insulating guardrail for power construction. The guardrail includes a main body, a connecting block fixedly installed on its surface, a horizontal bar fixedly connected to one side of the connecting block, an LED display mounted on the surface of the horizontal bar, a solar panel mounted above the LED display on the surface of the horizontal bar, an equipment base fixedly installed below the connecting block, a pulley mounted on the lower surface of the equipment base, a vertical bar fixedly installed on the lower surface of the horizontal bar, an LED display mounted on the surface of the middle horizontal bar, a solar panel fixedly mounted on the surface of the upper horizontal bar, one end of the vertical bar fixedly mounted on the lower surface of the upper horizontal bar, and the other end of the vertical bar passing through the middle horizontal bar and fixedly mounted on the upper surface of the lower horizontal bar. Its advantages are: it can play a more eye-catching warning role through LED display screen; its disadvantages are: although LED display screen can be used to display different warning messages, it requires matching solar panels, batteries and controllers to operate, which is costly, and there is also the issue of charging. Although solar panels are installed, it is not conducive to charging when used in the hydropower station plant for a long time. In addition, the LED display screen is easily damaged during transportation and stacking. Utility Model Content

[0004] The purpose of this utility model is to provide a maintenance warning fence. By installing a connecting component between the first and second horizontal bars of the fence, and forming a window by spacing between the two first side plates of the connecting component, a warning sign is slidably installed between the first and second horizontal bars. By sliding the warning sign horizontally between the first and second horizontal bars, when the warning message on the warning sign is aligned with the window, different warning messages on the warning sign can be displayed through the window. Furthermore, the maintenance warning fence of this application has a relatively low manufacturing cost, does not involve charging issues during use, is more convenient to use, and is not easily damaged during transportation and stacking.

[0005] To achieve the above objectives, this utility model provides a maintenance warning enclosure, including at least two posts, with a base connected to the bottom of each post. A first horizontal bar and a second horizontal bar are connected between adjacent posts, with the first horizontal bar located above the second horizontal bar. A connecting component is also installed between the first and second horizontal bars. The connecting component includes two first side plates, both located on one side, with a distance between the two first side plates to form a window.

[0006] The first horizontal bar has at least one first groove along its length on its lower side, and the second horizontal bar has at least one second groove along its length on its upper side. The first groove and the second groove are opposite to each other, and at least one warning sign is slidably installed in the first groove and the second groove.

[0007] Two warning signs are slidably installed in the first and second grooves.

[0008] The lower side of the first horizontal bar has two first grooves along its length, and the upper side of the second horizontal bar has two second grooves along its length.

[0009] At least one elongated hole is provided on the first horizontal bar at the position corresponding to the first groove, and an extension rod is fixedly installed on the top of the warning sign, the extension rod moving out of the elongated hole.

[0010] A washer is fitted on the upper side of the first horizontal bar on the extension rod, a handle is installed at the upper end of the extension rod, and a spring is also fitted on the extension rod, with one end of the spring abutting against the handle and the other end abutting against the washer.

[0011] The connecting assembly also includes a second side plate, with the first groove and the second groove located between the first side plate and the second side plate.

[0012] The first and second horizontal bars are either hollow tubular structures or solid rod structures.

[0013] A third horizontal bar connects adjacent columns. The third horizontal bar is located below the second horizontal bar. Several isolation bars are also installed between the second and third horizontal bars.

[0014] The base is a rod, and a connecting cylinder is fixedly installed on the upper middle part of the rod. The column is sleeved and fixed to the connecting cylinder.

[0015] Support members are also provided at both ends of the lower side of the base.

[0016] Compared with the prior art, this utility model has the following technical effects:

[0017] 1. This utility model involves installing a connecting component between the first and second horizontal bars of a maintenance enclosure. A window is formed by a gap between the two first side plates of the connecting component. A warning sign is slidably installed between the first and second horizontal bars. By sliding the warning sign laterally between the first and second horizontal bars, different warning messages on the sign can be displayed through the window when aligned with the window. Furthermore, the maintenance warning enclosure of this application has a relatively low manufacturing cost, does not involve charging issues during use, is more convenient to use, and is less prone to damage during handling and stacking.

[0018] 2. The first horizontal bar of this utility model has two first grooves along its length on its lower side, and two second grooves along its length on its upper side. This allows two warning signs to be slidably installed in one set of first and second grooves, and two more warning signs to be slidably installed in the other set, thus enabling the installation of four warning signs. Furthermore, it reduces the total width of the two first side panels, allowing for greater flexibility in the length dimensions of the fence.

[0019] 3. The extension rod of this utility model has a washer fitted on the upper side of the first horizontal bar, a handle is installed at the upper end of the extension rod, and a spring is also fitted on the extension rod. One end of the spring abuts against the handle and the other end abuts against the washer, so that the warning sign and the first horizontal bar are damped. When the fence is placed on the sloping ground, it prevents the warning sign from sliding on its own due to the terrain and making it impossible for the corresponding warning sign to be aligned with the window.

[0020] 4. In this utility model, a third horizontal bar is connected between adjacent columns. The third horizontal bar is located below the second horizontal bar. Multiple isolation bars are also connected and installed between the second and third horizontal bars to provide better isolation effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0022] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the right-side structure of this utility model.

[0024] Figure 3 This is a top view of the structure of this utility model.

[0025] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure at point AA.

[0026] Figure 5 for Figure 1A schematic diagram of the cross-sectional structure at point BB; where the first and second horizontal columns are hollow tube structures.

[0027] Figure 6 middle Figure 1 A schematic diagram of the cross-sectional structure at point BB; where the first and second horizontal bars are solid rod structures.

[0028] Figure 7 These are four different warning signs in this utility model.

[0029] Figure 8 This is a schematic diagram of the structure of the base of this utility model.

[0030] Figure label:

[0031] Column 10, base 20, connecting cylinder 21, limit screw 211, support component 22;

[0032] First horizontal bar 30, first groove 31, elongated hole 32, first elongated hole 321, second elongated hole 322, third elongated hole 323, fourth elongated hole 324;

[0033] Second horizontal bar 40, second groove 41;

[0034] The third column is 50;

[0035] 60mm isolation bar;

[0036] Connecting component 70, first side plate 71, window 711, second side plate 72;

[0037] Warning sign 80, extension pole 81, handle 82, washer 83, spring 84. Detailed Implementation

[0038] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0039] Example 1:

[0040] See Figure 1-3 A maintenance warning enclosure includes at least two posts 10, with a base 20 connected to the bottom of each post 10. A first horizontal bar 30 and a second horizontal bar 40 are connected between adjacent posts 10. The first horizontal bar 30 is located above the second horizontal bar 40. A connecting component 70 is also installed between the first horizontal bar 30 and the second horizontal bar 40. The connecting component 70 includes two first side plates 71, both of which are located on one side and are spaced apart to form a window 711.

[0041] At least one first groove 31 is provided on the lower side of the first horizontal bar 30 along the length direction, and at least one second groove 41 is provided on the upper side of the second horizontal bar 40 along the length direction. The first groove 31 and the second groove 41 are opposite to each other, and at least one warning sign 80 is slidably installed in the first groove 31 and the second groove 41.

[0042] See Figure 1 A connecting component 70 is installed between the first horizontal bar 30 and the second horizontal bar 40 of the enclosure. A window 711 is formed by a distance between the two first side plates 71 of the connecting component 70. A warning sign 80 is slidably installed between the first horizontal bar 30 and the second horizontal bar 40. When the warning message on the warning sign 80 is aligned with the window 711, different warning messages on the warning sign 80 can be displayed through the window 711.

[0043] In this embodiment, a single warning sign 80 is used, and multiple different warning messages are printed on the single warning sign 80. Since the warning sign 80 can slide horizontally between the first horizontal bar 30 and the second horizontal bar 40, the corresponding warning message is aligned with the window 711.

[0044] For example, on a warning sign 80, the words "Operating," "Working Here," and "High Voltage Danger" are printed horizontally at intervals. When the left side of "Operating" is aligned with the window 711, "Operating" is displayed, while "Working Here" and "High Voltage Danger" are obscured by the first side panel 71 on the right. When the middle "Working Here" is aligned with the window 711, "Working Here" is displayed, while the left side of "Operating" is obscured by the first side panel 71 on the left, and the right side of "High Voltage Danger" is obscured by the first side panel 71 on the right. When the right side of "High Voltage Danger" is aligned with the window 711, "High Voltage Danger" is displayed, while "Operating" and "Working Here" are obscured by the first side panel 71 on the left.

[0045] Of course, four warning signs 80 can be set, each with a different warning message. Different warning messages can be displayed by sliding different warning signs 80 to face the window 711.

[0046] Example 2:

[0047] The difference from Embodiment 1 is that, in this embodiment, two warning signs 80 are slidably installed in the first groove 31 and the second groove 41.

[0048] Specifically, each warning sign 80 has a different warning message. In this embodiment, one warning sign 80 is set with "Running" and another warning sign is set with "Working Here". By sliding the warning sign 80 to face the window 711, different warning messages are displayed.

[0049] Further, see Figure 4 , 5 The lower side of the first horizontal bar 30 has two first grooves 31 along its length, and the upper side of the second horizontal bar 40 has two second grooves 41 along its length. This allows two warning signs to be slidably installed in one set of first grooves 31 and second grooves 41, and two more warning signs to be slidably installed in the other set of first grooves 31 and second grooves 41, thus enabling the installation of four warning signs 80. This also reduces the total width of the two first side panels 71, allowing for greater flexibility in the length dimensions of the enclosure.

[0050] When one side of the warning sign 80 is aligned with the window 711, the other side of the warning sign 80 is blocked by the first side panel 71.

[0051] For easier adjustment of warning sign 80, see [link / reference] Figure 1 , 3 4, 5. At least one elongated hole 32 is provided on the first horizontal bar 30 at the position corresponding to the first groove 31. An extension rod 81 is fixedly installed on the top of the warning sign 80, and the extension rod 81 moves through the elongated hole 32. By moving the extension rod 81 left and right, the corresponding warning sign 80 can be moved.

[0052] Furthermore, such as Figure 4 As shown, a washer 83 is fitted onto the upper side of the first horizontal bar 30 on the extension rod 81. A handle 82 is installed at the upper end of the extension rod 81, and a spring 84 is also fitted onto the extension rod 81. One end of the spring 84 abuts against the handle 82, and the other end abuts against the washer 83. Through the above structure, damping is formed between the warning sign 80 and the first horizontal bar 30, preventing the warning sign 80 from sliding due to the terrain when the fence is placed on the sloping ground, thus ensuring that the corresponding warning sign 80 is aligned with the window 711.

[0053] See Figure 4 The handle 82 and the extension rod 81 are screwed together to facilitate the installation of the spring 84.

[0054] In this embodiment, see Figure 3 The first horizontal bar 30 has two elongated holes 32 at each of the first grooves 31, namely, a first elongated hole 321, a second elongated hole 322, a third elongated hole 323, and a fourth elongated hole 324. A warning sign 80 is installed between the first horizontal bar 30 and the second horizontal bar 40 corresponding to each elongated hole. Figure 7 The warning signs 80 are: a) "Operating", b) "Working Here", c) "High Voltage Danger", and d) "Do Not Operate". Each warning sign 80 has a protruding rod 81 that extends through a corresponding elongated hole to provide a limit.

[0055] Specifically, see Figure 3 When the extension rod 81 of the "In Operation" warning sign abuts against the right side of the first elongated hole 321, see [the relevant information]. Figure 1 The "In Operation" warning sign faces the window 711, while the "Working Here" warning sign corresponding to the second elongated hole 322 is obscured by the first side panel 71 on the right. When the extension rod 81 of the "Working Here" warning sign on the right abuts against the left side of the second elongated hole 322, the "Working Here" warning sign faces the window 711.

[0056] The "High Voltage Danger" and "Do Not Operate" warning signs are located in the first groove 31 and the second groove 41 on the other side, and their usage is the same as that of the "In Operation" and "Work Here" warning signs. However, the difference is that when the "High Voltage Danger" and "Do Not Operate" warning signs need to be used, the "In Operation" warning sign, which is located at the front, is positioned on the left and is obscured by the first side panel 71 on the left, while the "Work Here" warning sign is positioned on the right and is obscured by the first side panel 71 on the right.

[0057] Further, see Figure 4 , 5 The connecting assembly 70 also includes a second side plate 72. The first groove 31 and the second groove 41 are located between the first side plate 71 and the second side plate 72, improving the structural strength between the first horizontal bar 30 and the second horizontal bar 40, and can be used to set the company name and pattern on the outside of the second side plate 72. Specifically, the second side plate 72 is a piece of sheet material.

[0058] In one of the solutions, see Figure 5 The first horizontal bar 30 and the second horizontal bar 40 are hollow tube structures.

[0059] In another option, see Figure 6 The first horizontal bar 30 and the second horizontal bar 40 are solid rod structures.

[0060] Example 3:

[0061] Based on Example 1 or Example 2, see Figure 1 A third horizontal bar 50 is connected between adjacent columns 10. The third horizontal bar 50 is located below the second horizontal bar 40. Multiple isolation bars 60 are also connected and installed between the second horizontal bar 40 and the third horizontal bar 50 to provide better isolation effect.

[0062] See Figure 2 , 8The base 20 is a rod, and a connecting cylinder 21 is fixedly installed on the upper middle part of the rod. The column 10 is sleeved and fixed to the connecting cylinder 21. Specifically, the column 10 is a round tube, which is inserted and fixed inside the connecting cylinder 21. Then, for easy installation and disassembly, a limiting screw 211 can be screwed onto the connecting cylinder 21. The limiting screw 211 abuts against the column 10, thereby fixing the column 10.

[0063] Furthermore, support members 22 are respectively provided at both ends of the lower side of the base 20. The support members 22 can be welded to the lower side of the base 20, or they can be plastic parts fitted onto both ends of the base 20. The plastic parts are L-shaped, with a hole at one end for the base 20 to be inserted, and the other end extending downward to support the ground and prevent damage to the floor paint.

[0064] It should be noted that the posts 10, bases 20, first horizontal bars 30, second horizontal bars 40, third horizontal bars 50, isolation bars 60, connecting components 70, and warning signs 80 of the fence can all be made of metal, and the connecting structures that fix each other can be welded.

[0065] Of course, the fence posts 10, base 20, first horizontal bar 30, second horizontal bar 40, third horizontal bar 50, isolation bar 60, and connecting components 70 can also be spliced ​​together using corresponding connectors.

[0066] The text and / or graphics on the warning sign 80 can be applied by spray painting or by affixing stickers with text and graphics.

[0067] The method of use or principle of this utility model:

[0068] When in use, when the extension rod 81 of the "In Operation" warning sign abuts against the right side of the first elongated hole 321, see [the relevant documentation]. Figure 1 The "In Operation" warning sign faces the window 711, while the "Working Here" warning sign corresponding to the second elongated hole 322 is obscured by the first side panel 71 on the right. When the extension rod 81 of the "Working Here" warning sign on the right abuts against the left side of the second elongated hole 322, the "Working Here" warning sign faces the window 711.

[0069] The "High Voltage Danger" and "Do Not Operate" warning signs are located in the first groove 31 and the second groove 41 on the other side, and their usage is the same as that of the "In Operation" and "Work Here" warning signs. When the "High Voltage Danger" and "Do Not Operate" warning signs need to be used, the "In Operation" warning sign, which is located at the front, is positioned on the left and is obscured by the first side panel 71 on the left, while the "Work Here" warning sign is positioned on the right and is obscured by the first side panel 71 on the right.

[0070] The maintenance warning fence of this application has a relatively low manufacturing cost, and does not involve charging issues during use, making it more convenient to use. It is also less prone to damage during handling and stacking.

Claims

1. A maintenance warning enclosure, comprising at least two posts (10), with a base (20) connected to the bottom of each post (10), and a first horizontal bar (30) and a second horizontal bar (40) connected between adjacent posts (10), the first horizontal bar (30) being located above the second horizontal bar (40), characterized in that: A connecting component (70) is installed between the first horizontal bar (30) and the second horizontal bar (40). The connecting component (70) includes two first side plates (71), both of which are located on one side and are spaced apart to form a window (711). The first horizontal bar (30) has at least one first groove (31) along the length direction on its lower side, and the second horizontal bar (40) has at least one second groove (41) along the length direction on its upper side. The first groove (31) and the second groove (41) are opposite to each other, and at least one warning sign (80) is slidably installed in the first groove (31) and the second groove (41).

2. A service warning enclosure according to claim 1, wherein: Two warning signs (80) are slidably installed in the first groove (31) and the second groove (41).

3. An access warning enclosure according to claim 2, wherein: The first horizontal bar (30) has two first grooves (31) on its lower side along the length direction, and the second horizontal bar (40) has two second grooves (41) on its upper side along the length direction.

4. An access warning enclosure according to claim 1 or 2 or 3, wherein: At least one elongated hole (32) is provided on the first horizontal bar (30) at the position corresponding to the first groove (31), and an extension rod (81) is fixedly installed on the top of the warning sign (80), and the extension rod (81) moves out from the elongated hole (32).

5. An access warning enclosure according to claim 4, wherein: A washer (83) is fitted on the upper side of the first horizontal bar (30) of the extension rod (81), a handle (82) is installed on the upper end of the extension rod (81), and a spring (84) is also fitted on the extension rod (81). One end of the spring (84) abuts against the handle (82), and the other end abuts against the washer (83).

6. The service warning enclosure of claim 1, wherein: The connecting assembly (70) also includes a second side plate (72), with the first groove (31) and the second groove (41) located between the first side plate (71) and the second side plate (72).

7. The service warning enclosure of claim 1, wherein: The first horizontal bar (30) and the second horizontal bar (40) are hollow tube structures or solid rod structures.

8. The service warning enclosure of claim 1, wherein: A third horizontal bar (50) is connected between adjacent columns (10). The third horizontal bar (50) is located below the second horizontal bar (40). Multiple isolation bars (60) are also connected and installed between the second horizontal bar (40) and the third horizontal bar (50).

9. The service warning enclosure of claim 1, wherein: The base (20) is a rod, and a connecting cylinder (21) is fixedly provided on the upper middle part of the rod. The column (10) is sleeved and fixed to the connecting cylinder (21).

10. An access warning enclosure according to claim 9, wherein: Support members (22) are also provided at both ends of the lower side of the base (20).

Citation Information

Patent Citations

  • Safety insulation guardrail for power construction

    CN213654436U