Warning guardrail for elevator maintenance

Abstract

The utility model belongs to the field of warning guardrails, and particularly relates to a warning guardrail for elevator maintenance, which comprises a wall door frame, telescopic fixing rods are arranged at the top and the bottom in the wall door frame, fixing suckers are fixedly connected to two sides of each telescopic fixing rod, and the surfaces of the fixing suckers are tightly adsorbed to the inner wall of the wall door frame. The two sides of the surface of the telescopic fixing rod are sleeved with vertical hurdles, storage grooves are formed in the bottoms of the inner walls of the vertical hurdles, and pushing blocks are arranged at the tops of the storage grooves. According to the utility model, the fixed suckers and other structures are additionally arranged on the door frame of the wall body, so that the wall body is not required to be punched or the structure is not required to be damaged, the installation stability of the guardrail can be ensured, the damage to the door frame of the elevator is avoided, and the installation mode is more convenient and environment-friendly; by additionally arranging the vertical hurdle and other structures on the telescopic fixing rod, the position of the vertical hurdle on the fixing rod can be adjusted according to the actual warning range, the use flexibility of the guardrail is improved, and the isolation requirements of different maintenance areas are met.

Description

Technical Field

[0001] This utility model relates to the field of warning guardrail technology, specifically a warning guardrail for elevator maintenance. Background Technology

[0002] In routine elevator maintenance, to ensure the safety of the maintenance area and prevent unauthorized personnel from accidentally entering or approaching the elevator shaft where work is being carried out, warning barriers are usually installed at the elevator entrance. These barriers, as temporary safety protection facilities, have the core function of quickly establishing a physical isolation barrier and conveying clear warning information.

[0003] Currently, most elevator maintenance warning railings on the market use a simple frame structure, which is fixed to the ground or wall by expansion bolts or heavy loads. However, fixing with expansion bolts requires drilling into the wall or ground, which not only causes permanent damage to the building structure and increases the cost of later repairs, but also makes the installation and dismantling process cumbersome and consumes a lot of manpower and time. Railings that rely on heavy loads have poor stability and are prone to displacement or even collapse under the action of personnel collisions or external forces, making it difficult to form a reliable safety protection. Utility Model Content

[0004] The purpose of this utility model is to provide a warning guardrail for elevator maintenance, which solves the problem that most common elevator maintenance warning guardrails on the market adopt a simple frame structure and are fixed to the ground or wall by expansion bolts or heavy loads. However, fixing with expansion bolts requires drilling into the wall or ground, which not only causes permanent damage to the building structure and increases the cost of later repairs, but also makes the installation and dismantling process cumbersome and consumes a lot of manpower and time. Guardrails that rely on heavy loads have poor stability and are prone to displacement or even collapse under the action of personnel collisions or external forces, making it difficult to form a reliable safety protection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a warning guardrail for elevator maintenance, comprising a wall frame, wherein telescopic fixing rods are provided at the top and bottom of the interior of the wall frame, and fixing suction cups are fixedly connected to both sides of the telescopic fixing rods. The surfaces of the fixing suction cups are tightly adsorbed to the inner wall of the wall frame. Vertical railings are fitted on both sides of the surface of the telescopic fixing rods, and a storage groove is provided at the bottom of the inner wall of the vertical railings. A pushing block is provided at the top of the storage groove, and the surface of the pushing block is in contact with the surface of the telescopic fixing rod. A control mechanism is fixedly connected to the bottom of the pushing block.

[0006] Preferably, the control mechanism includes a lead screw, which is fixedly connected to the bottom of the push block. The bottom of the lead screw extends into the interior of the vertical frame. A threaded sleeve is threaded onto the surface of the lead screw, and a knob is fixedly connected to the surface of the threaded sleeve. The knob is movably connected to the interior of the vertical frame. An anti-rotation plate is fixedly connected to the bottom of the lead screw, and the surface of the anti-rotation plate slides in contact with the inner wall of the vertical frame.

[0007] Preferably, the anti-spin plate has a vertical rod slidably connected inside, and the surface of the vertical rod is fixedly connected to the inner wall of the vertical frame.

[0008] Preferably, a friction ring is fixedly connected to the surface of the knob, and the friction ring is located inside the vertical frame.

[0009] Preferably, a reinforcing sleeve is fitted on the top of the lead screw surface, and the top of the reinforcing sleeve is fixedly connected to the bottom of the push block.

[0010] Preferably, a warning board is fixedly connected to the front side of the vertical frame, and the warning board is located inside the wall door frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model adds a fixed suction cup or other structure to the wall door frame, eliminating the need to drill holes or damage the structure in the wall. This ensures the stability of the guardrail installation and avoids damage to the elevator door frame, making the installation method more convenient and environmentally friendly.

[0013] 2. This utility model, by adding a vertical guardrail or other structure to the telescopic fixed rod, allows the position of the vertical guardrail on the fixed rod to be adjusted according to the actual warning range, thereby improving the flexibility of the guardrail and meeting the isolation needs of different maintenance areas. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a perspective view of the fixed suction cup of this utility model;

[0016] Figure 3 This is a perspective view of the knob of this utility model.

[0017] In the diagram: 1. Wall frame; 2. Telescopic fixing rod; 3. Fixing suction cup; 4. Vertical railing; 5. Storage slot; 6. Push-tightening block; 71. Screw rod; 72. Screw sleeve; 73. Knob; 74. Anti-rotation plate; 8. Vertical rod; 9. Friction ring; 10. Reinforcing sleeve; 11. Warning board. 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] Please see Figure 1-3 A warning guardrail for elevator maintenance includes a wall frame 1. Telescopic fixing rods 2 are provided at the top and bottom of the interior of the wall frame 1. Fixing suction cups 3 are fixedly connected to both sides of the telescopic fixing rods 2. The surfaces of the fixing suction cups 3 are tightly adhered to the inner wall of the wall frame 1. Vertical railings 4 are fitted on both sides of the surface of the telescopic fixing rods 2. A storage groove 5 is opened at the bottom of the inner wall of the vertical railings 4. A push-tightening block 6 is provided at the top of the storage groove 5. The surface of the push-tightening block 6 is in contact with the surface of the telescopic fixing rods 2. A control mechanism is fixedly connected to the bottom of the push-tightening block 6.

[0020] Please see Figure 1-3 The control mechanism includes a lead screw 71, which is fixedly connected to the bottom of the push block 6. The bottom of the lead screw 71 extends into the interior of the vertical frame 4. A threaded sleeve 72 is threadedly connected to the surface of the lead screw 71. A knob 73 is fixedly connected to the surface of the threaded sleeve 72. The knob 73 is movably connected to the interior of the vertical frame 4. An anti-rotation plate 74 is fixedly connected to the bottom of the lead screw 71. The surface of the anti-rotation plate 74 slides in contact with the inner wall of the vertical frame 4.

[0021] Furthermore, by setting the lead screw 71, the screw sleeve 72 and the knob 73, the pressing force of the push block 6 on the telescopic fixing rod 2 can be precisely adjusted to ensure that the vertical rail frame 4 is in a stable position on the fixing rod and to prevent the guardrail from shifting due to loosening during use.

[0022] Please see Figure 1-3 The anti-spin plate 74 has a sliding connection to a vertical rod 8, and the surface of the vertical rod 8 is fixedly connected to the inner wall of the vertical frame 4.

[0023] Furthermore, the vertical rod 8 provides precise guidance for the movement of the anti-spin plate 74, preventing the anti-spin plate 74 from shifting or getting stuck during sliding, and further ensuring the stability of the push block 6 during adjustment.

[0024] Please see Figure 1-3 A friction ring 9 is fixedly connected to the surface of the knob 73, and the friction ring 9 is located inside the vertical frame 4.

[0025] Furthermore, the friction ring 9 prevents slippage during rotational adjustment, making it easier for operators to control the tightness of the push block 6 and improving operational convenience.

[0026] Please see Figure 1-3 A reinforcing sleeve 10 is fitted on the top of the surface of the lead screw 71, and the top of the reinforcing sleeve 10 is fixedly connected to the bottom of the push block 6.

[0027] Furthermore, by setting the reinforcing sleeve 10, the connection strength between the push block 6 and the lead screw 71 can be enhanced, preventing the lead screw 71 from becoming loose or broken at the connection with the push block 6 after being subjected to long-term force, thus extending the service life of the control mechanism.

[0028] Please see Figure 1 A warning board 11 is fixedly connected to the front side of the vertical frame 4, and the warning board 11 is located inside the wall door frame 1.

[0029] Furthermore, by setting up the warning board 11, the warning message "elevator under maintenance" can be directly conveyed to people in the surrounding area, improving the reminder effect for passersby and reducing the risk of accidental intrusion.

[0030] The specific implementation process of this utility model is as follows: When in use, the wall door frame 1 is blocked by the telescopic fixing rod 2 and the vertical railing 4. The warning board 11 can fill the gap between the telescopic fixing rod 2 and the vertical railing 4 to prevent children from passing through, and the warning board 11 can remind nearby people to stay away.

[0031] When it is necessary to disassemble the telescopic fixing rod 2 and the vertical frame 4, turn the knob 73. The knob 73 drives the screw sleeve 72 to rotate. The screw sleeve 72 drives the lead screw 71 downward. The lead screw 71 drives the push block 6 to descend. The lead screw 71 drives the anti-rotation plate 74 to descend. The anti-rotation plate 74 prevents the lead screw 71 from rotating. When the push block 6 enters the inside of the storage groove 5, the vertical frame 4 and the telescopic fixing rod 2 lose their fixation and can be separated. Turn the fastening bolts on the surface of the telescopic fixing rod 2, and the telescopic fixing rod 2 can be retracted. The telescopic fixing rod 2 can then be removed from the inside of the wall frame 1.

[0032] 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 claims and their equivalents.

Claims

1. A warning fence for elevator maintenance, comprising a wall door frame (1), characterized in that: Telescopic fixing rods (2) are provided at the top and bottom of the interior of the wall frame (1). Fixing suction cups (3) are fixedly connected to both sides of the telescopic fixing rods (2). The surface of the fixing suction cups (3) is tightly adsorbed to the inner wall of the wall frame (1). Vertical railings (4) are fitted on both sides of the surface of the telescopic fixing rods (2). A storage groove (5) is opened at the bottom of the inner wall of the vertical railings (4). A push-tightening block (6) is provided at the top of the storage groove (5). The surface of the push-tightening block (6) is in contact with the surface of the telescopic fixing rods (2). A control mechanism is fixedly connected to the bottom of the push-tightening block (6).

2. The warning fence for elevator maintenance according to claim 1, characterized in that: The control mechanism includes a lead screw (71), which is fixedly connected to the bottom of the push block (6). The bottom of the lead screw (71) extends into the interior of the vertical frame (4). A threaded sleeve (72) is threaded onto the surface of the lead screw (71). A knob (73) is fixedly connected to the surface of the threaded sleeve (72). The knob (73) is movably connected into the interior of the vertical frame (4). An anti-rotation plate (74) is fixedly connected to the bottom of the lead screw (71). The surface of the anti-rotation plate (74) slides in contact with the inner wall of the vertical frame (4).

3. The warning fence for elevator maintenance according to claim 2, characterized in that: The anti-spin plate (74) is internally slidably connected to a vertical rod (8), and the surface of the vertical rod (8) is fixedly connected to the inner wall of the vertical frame (4).

4. The warning fence for elevator maintenance according to claim 2, characterized in that: A friction ring (9) is fixedly connected to the surface of the knob (73), and the friction ring (9) is located inside the vertical frame (4).

5. The warning fence for elevator maintenance according to claim 2, characterized in that: A reinforcing sleeve (10) is fitted on the top of the surface of the lead screw (71), and the top of the reinforcing sleeve (10) is fixedly connected to the bottom of the push block (6).

6. The warning fence for elevator maintenance according to claim 1, characterized in that: A warning board (11) is fixedly connected to the front side of the vertical railing (4), and the warning board (11) is located inside the wall door frame (1).

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