Elevator maintenance protection device

Abstract

The utility model provides an elevator maintenance protection device, which belongs to the technical field of elevator maintenance and comprises a bottom plate and a protection mechanism arranged in the middle of the upper end of the bottom plate, the protection mechanism comprises a fixing plate arranged in the middle of the upper end of the bottom plate, a sliding plate is slidably connected in a sliding groove arranged on the rear surface of the fixing plate, and a protection hanging rod is arranged on the rear surface of the sliding plate. An operation lead screw is rotationally connected into a rotating hole formed in the middle of the front end of the fixing plate, the rear end of the operation lead screw is in threaded connection with a screw hole formed in the middle of the front surface of the sliding plate, an anti-disengaging assembly used for preventing the sliding plate from disengaging is further arranged at the front end of the sliding groove, and a limiting assembly is further arranged in the bottom plate. By means of the protection mechanism, the risk that the rope is abraded by the edge of an elevator opening to be broken in an external fixing mode is avoided, the hanging position of the safety rope can completely stretch into an elevator shaft, and the safety during elevator maintenance is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator maintenance, and in particular relates to an elevator maintenance protection device. Background Art

[0002] Elevator maintenance is a highly comprehensive and technology-intensive project, which aims to ensure the safety, reliability and efficient operation of elevators in all aspects. At present, maintenance personnel are usually required to enter through the upper elevator entrance to perform maintenance on the upper structure, which puts higher requirements on safety measures.

[0003] The authorization announcement number is CN 218642196 U. An elevator car maintenance and installation protection device comprises a support plate and an elevator mouth for cooperating with the support plate, an adjusting slide rail is fixedly connected to the outer side of the support plate, and the adjusting slide rail runs through the support plate, two sliders are slidably arranged in the adjusting slide rail, and an adjusting mechanism is arranged on the slider, and a positioning shaft is rotatably connected to the side of the slider away from the adjusting slide rail, a side baffle is also sleeved on the positioning shaft, and a knob is also connected to the end of the positioning shaft passing through the side baffle. In the present application, the slider can be conveniently slid in the adjusting slide rail by the setting of the adjusting slide rail, and the side baffle is rotatably installed on the slider through the positioning shaft, and the side baffle can be pushed to slide by the slider, so that the side baffle can be conveniently pushed to be close to the side wall of the elevator mouth, so that the support plate can be conveniently fixed to the elevator mouth;

[0004] Although this device effectively improves operational safety in actual applications, the safety rope is hung outside the elevator entrance, which causes the safety rope to easily rub against the edge of the elevator entrance during use. Over time, this may cause the rope to wear or even break, thereby potentially weakening the safety protection effectiveness. Utility Model Content

[0005] In view of this, the utility model provides an elevator maintenance protection device, which can avoid the risk of the rope being worn by the edge of the elevator entrance and breaking in an external fixing mode through a protection mechanism. The safety rope hanging point can be fully extended into the elevator shaft, thereby improving the safety of the elevator during maintenance.

[0006] In order to solve the above technical problems, the utility model provides an elevator maintenance protection device, including a base plate and a protection mechanism arranged in the middle of the upper end of the base plate, the protection mechanism including a fixed plate arranged in the middle of the upper end of the base plate, the base plate provides fixed support for the fixed plate, a sliding plate is slidably connected in a slide groove arranged on the rear surface of the fixed plate, the slide groove provides a guide sliding support for the sliding plate, a protection hanging rod is provided on the rear surface of the sliding plate, the sliding plate provides fixed support for the protection hanging rod, an operating screw rod is rotatably connected in a rotating hole arranged in the middle of the front end of the fixed plate, the rotating hole provides rotation support for the operating screw rod, the rear end of the operating screw rod is threadedly connected to the thread hole arranged in the middle of the front surface of the sliding plate, the front end of the slide groove is also provided with an anti-slip component for preventing the sliding plate from slipping off, and a limiting component is also provided in the base plate.

[0007] The anti-slip assembly includes a guide limit rod which is laterally symmetrically arranged on the front wall of the slide groove, the slide groove provides fixed support for the guide limit rod, and the guide limit rod is slidably connected with the sliding holes corresponding to the front surface of the sliding plate; the anti-slip assembly also includes limit rings which are respectively arranged at the rear ends of the outer arc surfaces of the guide limit rods, the guide limit rod provides fixed support for the limit rings, the inner arc surfaces of the sliding holes are provided with limit grooves which correspond to the limit rings one by one, the limit grooves provide limit for the limit rings to avoid the problem of the sliding plate detaching.

[0008] A support plate which is symmetrically distributed laterally is provided between the lower end of the front surface of the bottom plate and the front end of the lower surface of the fixing plate, and the support plate provides fixed support for the fixing plate.

[0009] The limiting assembly includes a dovetail groove arranged on the rear surface of the base plate, and a clamping plate symmetrically distributed laterally is slidably connected in the dovetail groove. The dovetail groove provides a guiding sliding support for the clamping plate. A bidirectional screw rod is rotatably connected between the rotating holes symmetrically arranged at the left and right ends of the base plate. The rotating holes provide rotating support for the bidirectional screw rod. The bidirectional screw rod is located in the dovetail groove, and the right end of the bidirectional screw rod passes through the rotating hole at the right end and extends to the outside. The left and right ends of the bidirectional screw rod are respectively threadedly connected to the screw holes arranged at the front end of the clamping plate adjacent to the same side; the limiting assembly also includes anti-skid pads respectively arranged on the outer sides of the clamping plates; the anti-skid pads are rubber anti-skid pads.

[0010] The beneficial effects of the above technical solution of the utility model are as follows:

[0011] 1. First, the relevant maintenance personnel place the base plate and its accessories in the predetermined maintenance position, and make its two ends contact with the two ends of the elevator entrance to ensure that the base plate and its accessories are firmly placed. Then the relevant maintenance personnel rotate the operating screw, and the operating screw rotates to drive the sliding plate and the protective hanging rod to move synchronously along the slide groove into the elevator shaft until the protective hanging rod moves into the elevator shaft. The relevant maintenance personnel stop rotating the operating screw. At this time, the relevant maintenance personnel hook the safety rope on their bodies on the protective hanging rod, avoiding the risk of the rope being worn by the edge of the elevator entrance and breaking under the external fixing method. The safety rope hanging point can be fully extended into the elevator shaft, thereby improving the safety of the elevator during maintenance.

[0012] 2. The guide limit rod, limit ring and limit groove cooperate with each other to avoid the accident of the sliding plate slipping due to failure of the operating screw rod and the thread hole on the sliding plate, thereby enhancing the safety of the elevator maintenance and protection device.

[0013] 3. The relevant maintenance personnel rotate the bidirectional screw, and the bidirectional screw drives the two clamping plates to move outward synchronously, so that the clamping plates are pressed against the two side walls of the elevator entrance to achieve the limit fixation of the elevator maintenance protection device. The anti-slip pad increases the friction when in contact with the side wall of the elevator entrance to prevent sliding, thereby forming a safe maintenance environment.

[0014] 4. The support plates are symmetrically distributed laterally between the front lower end of the base plate and the lower front end of the fixed plate to provide additional structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of an elevator maintenance and protection device of the utility model;

[0016] Figure 2 This is a schematic diagram of the protection mechanism structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0018] Figure 4 It is a schematic diagram of the structure of the limit assembly of the utility model.

[0019] Explanation of the reference numerals: 100, bottom plate; 200, fixed plate; 201, sliding plate; 202, protective hanging rod; 203, operating screw; 300, guide limit rod; 301, limit ring; 302, limit groove; 400, support plate; 500, clamping plate; 501, bidirectional screw; 502, anti-slip pad. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4, the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] like Figure 1-4 As shown:

[0022] The present embodiment provides an elevator maintenance protection device, including a bottom plate 100 and a protection mechanism arranged at the middle of the upper end of the bottom plate 100, the protection mechanism including a fixed plate 200 arranged at the middle of the upper end of the bottom plate 100, the bottom plate 100 provides a fixed support for the fixed plate 200, the middle of the upper end of the bottom plate 100 is welded and fixed to the fixed plate 200, a sliding plate 201 is slidably connected in a slide groove arranged on the rear surface of the fixed plate 200, the slide groove provides a guide sliding support for the sliding plate 201, and the rear surface of the sliding plate 201 is provided with a protection The protective hanging rod 202 and the sliding plate 201 provide fixed support for the protective hanging rod 202. The rear surface of the sliding plate 201 is welded and fixed to the protective hanging rod 202. An operating screw rod 203 is rotatably connected in a rotating hole set in the middle part of the front end of the fixed plate 200. The rotating hole provides rotation support for the operating screw rod 203. The rear end of the operating screw rod 203 is threadedly connected to the thread hole set in the middle part of the front surface of the sliding plate 201. The front end of the slide groove is also provided with an anti-slip component for preventing the sliding plate 201 from slipping off. A limiting component is also provided in the base plate 100.

[0023] like Figure 2 As shown, the anti-slip assembly includes a guide limit rod 300 which is laterally symmetrically arranged on the front wall of the slide groove, the slide groove provides fixed support for the guide limit rod 300, the front wall of the slide groove is welded and fixed to the guide limit rod 300, and the guide limit rod 300 is slidably connected to the sliding holes corresponding to the front surface of the sliding plate 201; the anti-slip assembly also includes a limit ring 301 which is respectively arranged at the rear end of the outer arc surface of the guide limit rod 300, the guide limit rod 300 provides fixed support for the limit ring 301, the rear end of the outer arc surface of the guide limit rod 300 is welded and fixed to the limit ring 301, and the inner arc surface of the sliding hole is provided with a limit groove 302 which corresponds to the limit ring 301 one by one, and the limit groove 302 provides a limit for the limit ring 301 to avoid the problem of the sliding plate 201 being detached.

[0024] like Figure 1-4As shown, the limiting component includes a dovetail groove arranged on the rear surface of the base plate 100, and a clamping plate 500 distributed laterally symmetrically is slidably connected in the dovetail groove, and the dovetail groove provides a guiding sliding support for the clamping plate 500, and a bidirectional screw rod 501 is rotatably connected between the rotating holes arranged laterally symmetrically at the left and right ends of the base plate 100, and the rotating holes provide rotation support for the bidirectional screw rod 501, and the bidirectional screw rod 501 is located in the dovetail groove, and the right end of the bidirectional screw rod 501 passes through the rotating hole at the right end and extends to the outside, and the left and right ends of the bidirectional screw rod 501 are respectively threadedly connected to the screw holes arranged at the front end of the clamping plate 500 adjacent to the same side; the limiting component also includes anti-skid pads 502 respectively arranged on the outer side surfaces of the clamping plate 500, and the outer side surfaces of the clamping plate 500 are bonded to the anti-skid pads 502; the anti-skid pads 502 are rubber anti-skid pads.

[0025] The working principle of an elevator maintenance and protection device provided by the utility model is as follows: first, the relevant maintenance personnel place the base plate 100 and its auxiliary mechanisms in a predetermined maintenance position, and make both ends of the base plate 100 contact with the two ends of the elevator entrance, so as to ensure that the base plate 100 and its auxiliary mechanisms are firmly placed, and then the relevant maintenance personnel rotate the operating screw rod 203, and the operating screw rod 203 rotates to drive the sliding plate 201 and the protection hanging rod 202 to move synchronously along the slide groove into the elevator shaft until the protection hanging rod 202 moves into the elevator shaft. The relevant maintenance personnel stops rotating the operating screw rod 203. At this time, the relevant maintenance personnel hooks the safety rope on their body to the protection hanging rod 202, avoiding the risk of the rope being worn by the edge of the elevator entrance and breaking under the external fixing method, and the safety rope hanging part can be fully extended to In the elevator shaft, the safety of the elevator during maintenance is improved. The guide limit rod 300, the limit ring 301 and the limit groove 302 cooperate with each other to avoid the failure of the operating screw rod 203 and the screw hole on the sliding plate 201, which causes the sliding plate 201 to slip off, thereby enhancing the safety of the elevator maintenance protection device. At the same time, the relevant maintenance personnel rotate the two-way screw rod 501, and the two-way screw rod 501 rotates to drive the two clamping plates 500 to move outward synchronously, so that the clamping plates 500 are pressed against the two side walls of the elevator entrance to achieve the limit fixation of the elevator maintenance protection device. The anti-slip pad 502 increases the friction when contacting the side wall of the elevator entrance to prevent sliding, thereby forming a safe maintenance environment. After the maintenance is completed, the reverse operation is performed to release the components, remove the protective device, and restore the normal operation of the elevator.

[0026] like Figure 1-4 As shown, a laterally symmetrically distributed support plate 400 is provided between the lower end of the front surface of the base plate 100 and the front end of the lower surface of the fixed plate 200. The support plate 400 provides fixed support for the fixed plate 200. The support plate 400 is laterally symmetrically distributed between the front lower end of the base plate 100 and the lower front end of the fixed plate 200, providing additional structural stability.

[0027] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An elevator maintenance protection device, characterized in that: The invention comprises a bottom plate (100) and a protective mechanism arranged at the middle part of the upper end of the bottom plate (100), wherein the protective mechanism comprises a fixed plate (200) arranged at the middle part of the upper end of the bottom plate (100), a sliding plate (201) is slidably connected in a sliding groove arranged on the rear surface of the fixed plate (200), a protective hanging rod (202) is arranged on the rear surface of the sliding plate (201), an operating screw rod (203) is rotatably connected in a rotating hole arranged in the middle part of the front end of the fixed plate (200), the rear end of the operating screw rod (203) is threadedly connected to a thread hole arranged in the middle part of the front surface of the sliding plate (201), an anti-slip component for preventing the sliding plate (201) from slipping is also arranged at the front end of the sliding groove, and a limit component is also arranged in the bottom plate (100).

2. An elevator maintenance protection device according to claim 1, characterized in that: The anti-slip assembly comprises guide limit rods (300) which are laterally symmetrically arranged on the front wall of the slide groove, and the guide limit rods (300) are respectively slidably connected to the corresponding sliding holes arranged on the front surface of the sliding plate (201).

3. An elevator maintenance protection device according to claim 2, characterized in that: The anti-drop assembly further comprises a limiting ring (301) respectively arranged at the rear end of the outer arc surface of the guide limiting rod (300), and the inner arc surface of the sliding hole is provided with a limiting groove (302) corresponding to the limiting ring (301) one by one.

4. An elevator maintenance protection device according to claim 1, characterized in that: A support plate (400) is provided between the lower end of the front surface of the bottom plate (100) and the front end of the lower surface of the fixing plate (200) and is symmetrically distributed in the transverse direction.

5. An elevator maintenance protection device according to claim 1, characterized in that: The limiting assembly includes a dovetail groove arranged on the rear surface of the base plate (100), and a clamping plate (500) distributed laterally symmetrically is slidably connected in the dovetail groove. A bidirectional screw rod (501) is rotatably connected between the rotating holes arranged laterally symmetrically at the left and right ends of the base plate (100). The bidirectional screw rod (501) is located in the dovetail groove, and the right end of the bidirectional screw rod (501) passes through the rotating hole at the right end and extends to the outside. The left and right ends of the bidirectional screw rod (501) are respectively threadedly connected to the screw holes arranged at the front end of the clamping plate (500) adjacent to the same side.

6. An elevator maintenance protection device according to claim 5, characterized in that: The position limiting assembly further comprises anti-slip pads (502) respectively arranged on the outer side surfaces of the clamping plates (500).

7. An elevator maintenance protection device according to claim 6, characterized in that: The anti-skid pad (502) is a rubber anti-skid pad.

Images