A protective fence for elevator maintenance
By designing a modular safety railing for elevator maintenance, the problem of gaps in existing railing technologies has been solved, enabling seamless splicing of multiple railings and improving safety during elevator maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN SPECIAL EQUIP INSPECTION INST
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-22
AI Technical Summary
Existing elevator maintenance guardrails cannot be effectively spliced when providing large-area protection, resulting in gaps in the guardrails and increasing the risk of outsiders accidentally entering dangerous areas.
A guardrail consisting of a first connecting rod and a second connecting rod is designed. The limiting connection is achieved by inserting the bracket and the connecting bracket, and the angle is adjusted and fixed by rotating the fixing rod and tightening the limiting screw, so that multiple guardrails can be spliced together and gaps are avoided.
This design allows for seamless splicing of multiple guardrails, reducing the possibility of unauthorized personnel accidentally entering dangerous areas and improving practicality and safety.
Smart Images
Figure CN224266451U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of guardrail technology, specifically a guardrail for elevator maintenance. Background Technology
[0002] An elevator is a permanent transportation device that serves several specific floors within a building, with its car moving on at least two rigid tracks perpendicular to the horizontal plane or at an angle of less than 15° to the vertical. In current elevator maintenance work, whether it's a lift or escalator, maintenance workers will hang appropriate warning signs or protective barriers at the elevator entrances and exits to warn unauthorized personnel. However, a new type of elevator maintenance protective barrier (Announcement No.: CN214996624U) has the following disadvantages in use:
[0003] During use, the elevator is protected by setting up a first folding bar and a second folding bar. However, when large-area protection is required, multiple guardrails need to be placed in multiple locations. Since the guardrails cannot be spliced together, each guardrail can only be set up independently, and there are gaps between the guardrails. This may allow outsiders to accidentally enter the dangerous area, increasing the possibility of accidents. Especially during elevator maintenance, there may be risks such as falling objects or electrical faults. Therefore, this patent proposes a protective guardrail for elevator maintenance to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a safety railing for elevator maintenance, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective railing for elevator maintenance, comprising a first connecting rod and a second connecting rod, a rotating frame fixed to the side of the first connecting rod away from the second connecting rod, a fixed rod fixedly inserted through the rotating frame, a mounting frame rotatably connected between the top and bottom ends of the fixed rod, a insert fixed to the side of the mounting frame away from the rotating frame, and a connecting frame fixed to the side of the second connecting rod away from the first connecting rod, the insert being adapted to the connecting frame.
[0006] Preferably, the top inner wall and bottom inner wall of the mounting bracket are both fixed with fixing blocks, the fixing rod is rotatably connected in the fixing blocks, and the fixing blocks are screwed with limit screws.
[0007] Preferably, a plug is fixed to the side of the first connecting rod near the second connecting rod, and a housing is fixed to the side of the second connecting rod near the first connecting rod, with the plug inserted into the housing.
[0008] Preferably, the front of the insertion rod has a slot, one end of the insertion shell is fixed with a mounting shell, an insertion block is slidably connected inside the mounting shell, the insertion block passes through the insertion shell and is inserted into the slot, a spring is fixed between the back of the insertion block and the mounting shell, a moving rod is fixed to the back of the insertion block, and a limit plate is fixed after the moving rod passes through the mounting shell.
[0009] Preferably, a fixing plate is fixed to the side of the first connecting rod and the second connecting rod that are close to each other, and a first folding rod and a second folding rod are provided on the side of the two fixing plates that are close to each other, and the first folding rod and the second folding rod are arranged crosswise.
[0010] Preferably, reflective strips are installed on the front and back of both the first and second connecting rods, and support bases are fixed to the bottom of both the first and second connecting rods.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] By inserting the bracket on the side of the first connecting rod away from the second connecting rod into the connecting frame, a limiting connection is achieved, allowing for the splicing of guardrails. When the angle between adjacent guardrails needs to be changed, the fixing rod can be rotated within the mounting frame to adjust the angle. Once the appropriate angle is reached, the limiting screw can be tightened into the fixing block, limiting the fixing rod and thus securing it. This method is more practical and allows for the splicing of multiple guardrails, preventing gaps between guardrails that could lead to unauthorized personnel entering dangerous areas and increasing the likelihood of accidents. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the first connecting rod structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the rotating frame structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the insert structure of this utility model.
[0017] In the diagram: 1. First connecting rod; 2. Second connecting rod; 3. Fixing plate; 4. First folding rod; 5. Second folding rod; 6. Rotating frame; 7. Fixing rod; 8. Mounting frame; 9. Fixing block; 10. Limiting screw; 11. Insert bracket; 12. Connecting frame; 13. Inserting rod; 14. Insert shell; 15. Inserting block; 16. Mounting shell; 17. Spring; 18. Moving rod; 19. Limiting plate; 20. Reflective strip. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] An elevator is a permanent transportation device that serves several specific floors within a building, with its car moving on at least two rigid tracks perpendicular to the horizontal plane or at an angle of less than 15° to the vertical. In current elevator maintenance work, whether it is a lift or an escalator or other automatic access road, maintenance workers will hang appropriate maintenance warning signs or protective railings at the elevator entrance and exit to warn outsiders.
[0020] like Figures 1-4 As shown, this utility model provides a technical solution: a safety railing for elevator maintenance, including a first connecting rod 1 and a second connecting rod 2. A rotating frame 6 is fixed to the side of the first connecting rod 1 away from the second connecting rod 2. A fixing rod 7 is fixedly inserted through the rotating frame 6. A mounting frame 8 is rotatably connected between the top and bottom ends of the fixing rod 7. A insert bracket 11 is fixed to the side of the mounting frame 8 away from the rotating frame 6. A connecting frame 12 is fixed to the side of the second connecting rod 2 away from the first connecting rod 1. The insert bracket 11 is adapted to the connecting frame 12. Fixing blocks 9 are fixed to the inner walls of the top and bottom ends of the mounting frame 8. The fixing rod 7 is rotatably connected to the fixing block 9. A limit screw 10 is screwed onto the fixing block 9.
[0021] It is important to note that when multiple guardrails need to be added, the bracket 11 on the side of the first connecting rod 1 away from the second connecting rod 2 is inserted into the connecting bracket 12 to achieve a limiting connection, allowing the guardrails to be spliced together. When the angle between adjacent guardrails needs to be changed, the fixing rod 7 can be rotated within the mounting bracket 8 to achieve angle adjustment. When the appropriate angle is reached, the limiting screw 10 can be tightened into the fixing block 9 to limit the fixing rod 7, thus achieving fixation. This method is more practical and allows multiple guardrails to be spliced together, preventing gaps between guardrails that could lead to outsiders accidentally entering dangerous areas and increasing the possibility of accidents.
[0022] like Figure 2 and Figure 4As shown, a plug rod 13 is fixed to the side of the first connecting rod 1 near the second connecting rod 2, and a plug shell 14 is fixed to the side of the second connecting rod 2 near the first connecting rod 1. The plug rod 13 is inserted into the plug shell 14. A slot is provided on the front of the plug rod 13. A mounting shell 16 is fixed to one end of the plug shell 14. A plug block 15 is slidably connected inside the mounting shell 16. The plug block 15 passes through the plug shell 14 and is inserted into the slot. The part of the plug block 15 inserted into the slot is a right-angled trapezoid. The inclined surface of the right-angled trapezoid contacts the initial inclined surface of the plug rod 13. A spring 17 is fixed between the back of the plug block 15 and the mounting shell 16. A moving rod 18 is fixed to the back of the plug block 15. A limit plate 19 is fixed after the moving rod 18 passes through the mounting shell 16.
[0023] It is important to note that when the guardrail is folded up for storage, by moving the first connecting rod 1 and the second connecting rod 2 toward each other, the insert rod 13 is inserted into the insert housing 14. During the insertion process, since the insert block 15 is in contact with the initial inclined surface of the insert rod 13, the inclined surface continuously squeezes the insert block 15 as the insert rod 13 moves until the insert rod 13 is fully inserted. The insert block 15 is then driven by the spring 17, causing the insert block 15 to be inserted into the slot, thus limiting the insertion rod 13. In this way, the guardrail is well stored and will not unfold during transportation, occupying more space, or get tangled or scratched with other items, increasing the difficulty of transportation.
[0024] like Figure 1 As shown, a fixing plate 3 is fixed to the side of the first connecting rod 1 and the second connecting rod 2 that are close to each other. A first folding rod 4 and a second folding rod 5 are provided on the side of the two fixing plates 3 that are close to each other. The first folding rod 4 and the second folding rod 5 are arranged in a cross pattern. Reflective strips 20 are installed on the front and back of the first connecting rod 1 and the second connecting rod 2. A support base is fixed to the bottom of the first connecting rod 1 and the second connecting rod 2.
[0025] It should be noted that by setting the first folding pole 4 and the second folding pole 5, the first folding pole 4 and the second folding pole 5 can be folded, which makes it easy to adjust the length of the guardrail according to the site conditions. By installing reflective strips 20, it can alert passers-by at night.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. A safety railing for elevator maintenance, comprising a first connecting rod (1) and a second connecting rod (2), characterized in that: A rotating frame (6) is fixed on the side of the first connecting rod (1) away from the second connecting rod (2). A fixed rod (7) is fixed through the rotating frame (6). A mounting frame (8) is rotatably connected between the top and bottom ends of the fixed rod (7). A plug (11) is fixed on the side of the mounting frame (8) away from the rotating frame (6). A connecting frame (12) is fixed on the side of the second connecting rod (2) away from the first connecting rod (1). The plug (11) is compatible with the connecting frame (12).
2. The elevator maintenance guardrail according to claim 1, characterized in that: The mounting bracket (8) has a fixing block (9) fixed on the inner wall of the top end and the inner wall of the bottom end. The fixing rod (7) is rotatably connected in the fixing block (9). The fixing block (9) is screwed with a limit screw (10).
3. The safety railing for elevator maintenance according to claim 1, characterized in that: The first connecting rod (1) has a plug rod (13) fixed on the side near the second connecting rod (2), and the second connecting rod (2) has a plug shell (14) fixed on the side near the first connecting rod (1). The plug rod (13) is inserted into the plug shell (14).
4. The elevator maintenance guardrail according to claim 3, characterized in that: The front of the insertion rod (13) has a slot, and one end of the insertion shell (14) is fixed with a mounting shell (16). The mounting shell (16) is slidably connected with an insertion block (15). The insertion block (15) passes through the insertion shell (14) and is inserted into the slot. A spring (17) is fixed between the back of the insertion block (15) and the mounting shell (16). A moving rod (18) is fixed on the back of the insertion block (15). The moving rod (18) passes through the mounting shell (16) and is fixed with a limit plate (19).
5. A safety railing for elevator maintenance according to claim 1, characterized in that: The first connecting rod (1) and the second connecting rod (2) are both fixed with a fixing plate (3) on the side that is close to each other. The two fixing plates (3) are both provided with a first folding rod (4) and a second folding rod (5) on the side that is close to each other. The first folding rod (4) and the second folding rod (5) are arranged in a cross manner.
6. A safety railing for elevator maintenance according to claim 1, characterized in that: Reflective strips (20) are installed on the front and back of the first connecting rod (1) and the second connecting rod (2), and support bases are fixed at the bottom of the first connecting rod (1) and the second connecting rod (2).