Protective fence for elevator maintenance

Abstract

The protective fence for elevator maintenance comprises mounting frames, the mounting frames are designed in a symmetrical hinged mode, a first protective net plate and a second protective net plate are arranged on the sides, close to each other, of the two mounting frames in a hinged mode respectively, and screw rods are symmetrically and fixedly installed on the sides, away from each other, of the two mounting frames. The outer side of each screw rod is in threaded connection with a threaded sleeve; the screws are installed at the four corners of the installation frame, the threaded sleeves on the screws are screwed to the wall, the abutting plates abut against the wall, and therefore the device is fixed, and the problem that in the prior art, stability is poor when the device is placed is solved; the first protective screen plate and the second protective screen plate are fixed through the inserting rods, the first protective screen plate and the second protective screen plate are opened when a worker prepares to enter an elevator shaft, the first protective screen plate and the second protective screen plate are closed when the worker reaches an entrance of the elevator shaft, and the worker can enter and exit conveniently.

Description

Technical Field

[0001] The utility model relates to a guardrail, in particular to a guardrail for elevator maintenance. Background Art

[0002] Elevator maintenance is very important to ensure the normal operation of the elevator. During maintenance, the elevator should be stopped from use, the maintenance area must be protected by a protective fence, and safety signs should be set up.

[0003] At present, as attached Figure 5 As shown, in the prior art, during elevator maintenance, guardrails are mostly placed directly at the elevator entrance, which has poor stability and thus cannot guarantee safety. Therefore, the present application proposes a guardrail for elevator maintenance to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a guardrail for elevator maintenance, so as to solve the problem raised in the above background technology that in the prior art, during elevator maintenance, the guardrail is mostly placed directly at the elevator entrance, which has poor stability and thus cannot ensure safety.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A guardrail for elevator maintenance includes a mounting frame, wherein the mounting frame is symmetrically hinged, and a first protective mesh plate and a second protective mesh plate are hingedly provided on the sides of the two mounting frames close to each other, respectively, and screws are symmetrically fixedly installed on the sides of the two mounting frames away from each other, and a threaded sleeve is threadedly connected to the outer side of each screw.

[0007] As a further solution of the utility model: a butt plate is fixedly installed on one end of the threaded sleeve.

[0008] As a further solution of the utility model: the top of the first protective mesh is rotatably connected to a cylinder, a fixed plate is fixedly installed inside the cylinder, a spring is fixedly installed on the top of the fixed plate, a pull plate is fixedly installed on one end of the spring, an insertion rod is fixedly installed on one side of the bottom of the pull plate, one end of the insertion rod is inserted into the interior of the second protective mesh, and a slot for inserting the insertion rod is opened on the second protective mesh.

[0009] As a further solution of the utility model: thread grooves are symmetrically opened on the two mounting frames, a connecting plate is commonly provided on the front sides of the two thread grooves, bolts are provided on the front side of the connecting plate and at the position corresponding to each thread groove, and the connecting plate is fixed to the two mounting frames by two bolts.

[0010] As a further solution of the present invention: handles are fixedly installed on the front sides of the first protective mesh plate and the second protective mesh plate.

[0011] As a further solution of the present invention: identification plates are fixedly installed on the front sides of the first protective mesh plate and the second protective mesh plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model fixes the device by installing screws at the four corners of the mounting frame, screwing the threaded sleeves on the screws to the wall, and using the abutment plate to abut against the wall, thereby solving the problem of poor stability during placement in the prior art.

[0014] 2. The utility model fixes the first protective mesh plate and the second protective mesh plate by inserting rods. When preparing to enter the elevator shaft, the first protective mesh plate and the second protective mesh plate are opened, and when reaching the entrance of the elevator shaft, the first protective mesh plate and the second protective mesh plate are closed, which is convenient for staff to enter and exit.

[0015] 3. The utility model adopts a symmetrical hinged design for the mounting frame, so that the mounting frame can be folded when the device is not in use, which is convenient for users to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a partial rear view of the present utility model.

[0018] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle.

[0020] Figure 5 It is a physical diagram of the prior art in the utility model.

[0021] 1. Abutment plate; 2. Cylinder; 3. Screw; 4. Threaded sleeve; 5. First protective mesh plate; 6. Threaded groove; 7. Second protective mesh plate; 8. Mounting frame; 9. Identification plate; 10. Insert rod; 11. Pull plate; 12. Bolt; 13. Connecting plate; 14. Fixing plate; 15. Slot; 16. Spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5 In an embodiment of the utility model, a guardrail for elevator maintenance includes a mounting frame 8, which is a symmetrically hinged design. The sides of the two mounting frames 8 close to each other are respectively hinged with a first protective mesh plate 5 and a second protective mesh plate 7, and the sides of the two mounting frames 8 away from each other are symmetrically fixed with screws 3, and the outer side of each screw 3 is threadedly connected with a threaded sleeve 4.

[0024] A butt plate 1 is fixedly mounted on one end of the threaded sleeve 4 to increase the contact area between the cylinder 2 and the wall.

[0025] The top of the first protective mesh 5 is rotatably connected to the cylinder 2, and a fixing plate 14 is fixedly installed inside the cylinder 2. A spring 16 is fixedly installed on the top of the fixing plate 14, and a pull plate 11 is fixedly installed on one end of the spring 16. A plug rod 10 is fixedly installed on one side of the bottom of the pull plate 11, and one end of the plug rod 10 is inserted into the interior of the second protective mesh 7. A slot 15 for inserting the plug rod 10 is opened on the second protective mesh 7, which facilitates the staff to enter and exit the elevator shaft without affecting the protection.

[0026] The two mounting frames 8 are symmetrically provided with thread grooves 6, and a connecting plate 13 is commonly provided on the front sides of the two thread grooves 6. Bolts 12 are provided on the front side of the connecting plate 13 and at the position corresponding to each thread groove 6. The connecting plate 13 is fixed to the two mounting frames 8 by two bolts 12, so that the mounting frames 8 are foldable in design, which is convenient for carrying.

[0027] Handles are fixedly installed on the front sides of the first protective mesh plate 5 and the second protective mesh plate 7 to facilitate pulling the first protective mesh plate 5 and the second protective mesh plate 7.

[0028] The front sides of the first protective mesh plate 5 and the second protective mesh plate 7 are both fixedly mounted with identification plates 9 , with “Elevator Construction” being marked on the first protective mesh plate 5 and “No Approaching” being marked on the second protective mesh plate 7 .

[0029] The working principle of the utility model is:

[0030] When the utility model is used, the device is placed at the elevator entrance and the four threaded sleeves 4 are rotated in sequence, so that the threaded sleeves 4 threadedly connected with the screw rod 3 move to the walls of the elevator entrance on both sides and drive the abutment plate 1 to press against the walls of the elevator entrance, thereby completing the fixation of the device. The staff pulls the two handles to open the first protective mesh plate 5 and the second protective mesh plate 7 and then enters the elevator shaft. Before entering the interior of the elevator shaft, the pull plate 11 is pulled upward to drive the spring 16 to stretch, and the cylinder 2 is rotated so that the insertion rod 10 can be rotated to a position corresponding to the slot 15. At this time, the pull plate 11 is released to drive the insertion rod 10 to be inserted into the inside of the slot 15, completing the fixation between the first protective mesh plate 5 and the second protective mesh plate 7. When the device is not in use, the insertion rod 10 is pulled out and the four threaded sleeves 4 are removed in sequence. At the same time, the two bolts 12 on the connecting plate 13 are also removed. At this time, the device can be folded in half, which is convenient for users to carry.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A guardrail for elevator maintenance, comprising a mounting frame (8), characterized in that: The mounting frame (8) is of symmetrical hinged design, and the sides of the two mounting frames (8) close to each other are respectively hingedly provided with a first protective mesh plate (5) and a second protective mesh plate (7), and the sides of the two mounting frames (8) away from each other are both symmetrically fixedly installed with screw rods (3), and the outer side of each screw rod (3) is threadedly connected with a threaded sleeve (4).

2. The elevator maintenance guardrail according to claim 1, characterized in that: A stop plate (1) is fixedly mounted on one end of the threaded sleeve (4).

3. The elevator maintenance guardrail according to claim 1, characterized in that: The top of the first protective mesh plate (5) is rotatably connected to a cylinder (2), a fixing plate (14) is fixedly installed inside the cylinder (2), a spring (16) is fixedly installed on the top of the fixing plate (14), a pull plate (11) is fixedly installed on one end of the spring (16), an insertion rod (10) is fixedly installed on one side of the bottom of the pull plate (11), one end of the insertion rod (10) is inserted into the interior of the second protective mesh plate (7), and a slot (15) for inserting the insertion rod (10) is opened on the second protective mesh plate (7).

4. The elevator maintenance guardrail according to claim 1, characterized in that: The two mounting frames (8) are symmetrically provided with thread grooves (6), a connecting plate (13) is commonly provided on the front sides of the two thread grooves (6), a bolt (12) is provided on the front side of the connecting plate (13) and at a position corresponding to each thread groove (6), and the connecting plate (13) is fixed to the two mounting frames (8) by the two bolts (12).

5. The elevator maintenance guardrail according to claim 1, characterized in that: A handle is fixedly mounted on the front side of the first protective mesh plate (5) and the second protective mesh plate (7).

6. The elevator maintenance guardrail according to claim 1, characterized in that: Identification plates (9) are fixedly mounted on the front sides of the first protective mesh plate (5) and the second protective mesh plate (7).

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