Machine-room-free elevator and maintenance platform thereof

Abstract

The utility model relates to the technical field of elevators, in particular to a machine-room-less elevator and a maintenance platform thereof, which comprises a platform, a support frame and a ladder arranged on one side of the support frame, the supporting frame is arranged at the top of an elevator car, at least two parallel sliding rails are arranged at the top of the supporting frame, sliding blocks are connected to the sliding rails in a sliding mode, and the sliding blocks are fixedly connected with the bottom of the platform; the platform can slide along the sliding rails to be close to or away from a traction machine of the elevator without the machine room. The elevator shaft space of the machine-room-less elevator can be effectively saved, and therefore the cost for installing the machine-room-less elevator is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a machine room-less elevator and a maintenance platform thereof. Background Art

[0002] Elevators can be roughly divided into two types according to their forms: machine room elevators and machine room-less elevators. For machine room-less elevators, by placing the top components such as the traction machine and rope head outside the projection of the car, it can avoid affecting the upward movement of the car, thereby avoiding the increase in the height of the top floor of the shaft. In addition, since the civil engineering machine room is eliminated, it provides greater convenience and space for the internal structure layout of the building. Therefore, machine room-less elevators have become more and more popular in recent years.

[0003] Since the traction machine, control cabinet, speed limiter and other elevator equipment of the machine roomless elevator are located on the upper part of the elevator shaft, a certain amount of maintenance space needs to be reserved in the elevator shaft. When the above elevator equipment needs to be repaired, it is generally carefully repaired using an independent maintenance platform installed in the shaft. However, setting up a maintenance platform in the shaft not only occupies the space in the elevator shaft, but also increases the cost of installing the machine roomless elevator accordingly. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art. The utility model provides a machine room-less elevator and a maintenance platform thereof, which can effectively save the elevator shaft space of the machine room-less elevator and thus effectively reduce the cost of installing the machine room-less elevator.

[0005] In order to solve the above problems, the utility model proposes a maintenance platform for a machine room-less elevator, comprising a platform, a support frame and a ladder arranged on one side of the support frame;

[0006] The support frame is arranged on the top of the elevator car, and at least two mutually parallel slide rails are arranged on the top of the support frame. A slider is slidably connected to the slide rails, and the slider is fixedly connected to the bottom of the platform; the platform can slide along the slide rails to approach or move away from the traction machine of the machine roomless elevator.

[0007] As an improvement of the above technical solution, an avoidance gap is provided at one end of the platform close to the traction machine.

[0008] As an improvement of the above technical solution, a maintenance switch is provided at one end of the support frame, and the maintenance switch is located at the bottom of the platform, and the platform can contact the maintenance switch.

[0009] As an improvement of the above technical solution, it also includes a driving mechanism, which is arranged on the top of the support frame and fixedly connected to the platform, and is used to drive the platform to slide along the slide rail.

[0010] As an improvement of the above technical solution, the driving mechanism includes a driving motor, a driving screw and a driving block;

[0011] The driving motor is arranged on the top of the supporting frame, the driving screw is connected to the output end of the driving motor and is parallel to the slide rail, the driving block is arranged on the driving screw, and the driving block is fixedly connected to the platform.

[0012] As an improvement of the above technical solution, one side of the slide rail is provided with a plurality of limit grooves arranged at a predetermined interval;

[0013] A accommodating cavity is provided on one side wall of the slider, and a locking column is also provided on the slider, one end of the locking column passes through the accommodating cavity and can extend into the limiting groove; a limiting portion is provided on the side of the locking column in the accommodating cavity, a spring is connected between the limiting portion and the side wall of the accommodating cavity, and the spring is sleeved on the locking column; wherein the spring is used to prevent the locking column from moving away from the limiting groove.

[0014] As an improvement of the above technical solution, guardrails are provided on both sides of the platform.

[0015] As an improvement of the above technical solution, the ladder is a soft ladder.

[0016] Correspondingly, the utility model also provides a machine room-less elevator, comprising the above-mentioned maintenance platform.

[0017] The implementation of this utility model has the following beneficial effects:

[0018] The utility model includes a platform, a support frame and a ladder arranged on one side of the support frame; the support frame is arranged on the top of the elevator car, and at least two parallel slide rails are arranged on the top of the support frame, and a slider is slidably connected to the slide rail, and the slider is fixedly connected to the bottom of the platform; the platform can slide along the slide rail to get close to or away from the traction machine of the machine roomless elevator. Compared with the prior art, the utility model integrates the maintenance platform on the top of the elevator car, and enables the platform to move along the slide rail to get close to or away from the traction machine of the machine roomless elevator through the slide rail on the support frame. On the one hand, it solves the problem of the need to set up an independent maintenance platform in the elevator shaft to occupy space in the past, and on the other hand, it solves the problem that the maintenance platform cannot inspect the brake of the traction machine at the current stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a usage state diagram of Embodiment 1 of the maintenance platform of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of Embodiment 1 of the maintenance platform of the utility model;

[0021] Figure 3It is a top view of Embodiment 1 of the maintenance platform of the utility model;

[0022] Figure 4 It is a top view of Embodiment 2 of the maintenance platform of the utility model;

[0023] Figure 5 It is a cross-sectional view of the slide rail of Example 3 of the maintenance platform of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0025] See also Figures 1 to 3 As shown, an embodiment of the utility model provides a maintenance platform for a machine room-less elevator, comprising a platform 1, a support frame 2 and a ladder 3 arranged on one side of the support frame 2.

[0026] The embodiment of the utility model integrates a laterally movable maintenance platform on the top of the elevator car 1' to solve the problem in the prior art that a machine room-less elevator needs to have an independent maintenance platform, which occupies the hoistway space.

[0027] Specifically, the support frame 2 is arranged on the top of the elevator car 1', and at least two mutually parallel slide rails 21 are arranged on the top of the support frame 2. A slider 22 is slidably connected to the slide rail 21, and the slider 22 is fixedly connected to the bottom of the platform 1; the platform 1 can slide along the slide rail 21 to approach or move away from the traction machine 2' of the machine roomless elevator.

[0028] Compared with the prior art, the utility model integrates the maintenance platform on the top of the elevator car, and the platform 1 is moved along the slide rail 21 to approach or move away from the traction machine 2' of the machine roomless elevator through the slide rail on the support frame 2. On the one hand, it solves the problem of occupying space by setting up an independent maintenance platform in the elevator shaft in the past, and on the other hand, it solves the problem that the maintenance platform cannot inspect the brake of the traction machine 2' at this stage.

[0029] Preferably, the platform 1 is provided with an avoidance gap 11 at one end close to the traction machine 2'. The avoidance gap 11 is provided on the platform 1 so that the platform 1 can have more translation space when in maintenance state and be closer to the main operating unit of the elevator.

[0030] Preferably, a maintenance switch 4 is provided at one end of the support frame 2, and the maintenance switch 4 is located at the bottom of the platform 1, and the platform 1 can contact the maintenance switch 4. When the platform 1 contacts the maintenance switch during translation, the elevator enters the maintenance state. After the elevator enters the maintenance state, the elevator cannot be called from outside, which effectively protects the life safety of maintenance personnel.

[0031] Preferably, in Embodiment 2 of the present utility model, see Figure 4 As shown, it also includes a driving mechanism 5, which is arranged on the top of the support frame 2 and is fixedly connected to the platform 1. The driving mechanism 5 is used to drive the platform 1 to slide along the slide rail 21. The driving mechanism 5 is arranged on the top of the support frame 2, so that the platform 1 can slide and adjust automatically without manual adjustment.

[0032] Specifically, the driving mechanism 5 includes a driving motor 51, a driving screw 52 and a driving block 53;

[0033] The driving motor 5 is arranged on the top of the supporting frame 2 , the driving screw 52 is connected to the output end of the driving motor 51 and is parallel to the slide rail 21 , the driving screw 52 is provided with the driving block 53 , and the driving block 53 is fixedly connected to the platform 1 .

[0034] Preferably, in Embodiment 3 of the present utility model, see Figure 5 As shown, one side of one of the slide rails 21 is provided with a plurality of limit grooves 27 arranged at a predetermined interval;

[0035] A accommodating cavity 25 is provided on one side wall of the slider 22, and a positioning column 23 is also provided on the slider 22, one end of which passes through the accommodating cavity 25 and can extend into the limiting groove 27; a limiting portion 26 is provided on the side of the positioning column 23 in the accommodating cavity 25, a spring 24 is connected between the limiting portion 26 and the side wall of the accommodating cavity 25, and the spring 24 is sleeved on the positioning column 23; wherein, the spring 24 is used to prevent the positioning column 23 from moving away from the limiting groove 27. The limiting fixing mechanism is provided to keep the platform 1 fixed at a certain position to avoid the movement of the platform 1 during the maintenance process to cause a safety accident.

[0036] Preferably, guardrails 11 are provided on both sides of the platform 1. Guardrails 11 are provided on both sides of the platform 1 to prevent maintenance personnel from slipping and falling from the platform 1 during maintenance.

[0037] Preferably, the ladder 3 is a soft ladder.

[0038] Correspondingly, an embodiment of the utility model further provides a machine room-less elevator, comprising the above-mentioned maintenance platform.

[0039] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A maintenance platform for a machine room-less elevator, characterized in that: It includes a platform, a support frame and a ladder arranged on one side of the support frame; The support frame is arranged on the top of the elevator car, and at least two mutually parallel slide rails are arranged on the top of the support frame. A slider is slidably connected to the slide rails, and the slider is fixedly connected to the bottom of the platform; the platform can slide along the slide rails to approach or move away from the traction machine of the machine roomless elevator.

2. The maintenance platform according to claim 1, characterized in that: An avoidance gap is arranged at one end of the platform close to the traction machine.

3. The maintenance platform according to claim 1, characterized in that: A maintenance switch is provided at one end of the support frame, and the maintenance switch is located at the bottom of the platform, and the platform can be in contact with the maintenance switch.

4. The maintenance platform according to claim 1, characterized in that: It also includes a driving mechanism, which is arranged on the top of the support frame and fixedly connected to the platform. The driving mechanism is used to drive the platform to slide along the slide rail.

5. The maintenance platform according to claim 4, characterized in that: The driving mechanism comprises a driving motor, a driving screw and a driving block; The driving motor is arranged on the top of the supporting frame, the driving screw is connected to the output end of the driving motor and is parallel to the slide rail, the driving block is arranged on the driving screw, and the driving block is fixedly connected to the platform.

6. The maintenance platform according to claim 1, characterized in that: One side of one of the slide rails is provided with a plurality of limit grooves arranged at a predetermined interval; A accommodating cavity is provided on one side wall of the slider, and a locking column is also provided on the slider, one end of the locking column passes through the accommodating cavity and can extend into the limiting groove; a limiting portion is provided on the side of the locking column in the accommodating cavity, a spring is connected between the limiting portion and the side wall of the accommodating cavity, and the spring is sleeved on the locking column; wherein the spring is used to prevent the locking column from moving away from the limiting groove.

7. The maintenance platform according to claim 1, characterized in that: Guardrails are arranged on both sides of the platform.

8. The maintenance platform according to claim 7, characterized in that: The ladder is a soft ladder.

9. A machine room-less elevator, characterized in that: Comprising a maintenance platform as described in any one of claims 1-8.

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