Constant-temperature sill for elevator

Abstract

The invention discloses a constant-temperature sill for an elevator. The constant-temperature sill comprises a sill body, a temperature sensor and an electric heating device. The temperature sensor monitors the temperature in the guide groove of the sill body; the electric heating device is fixed to the lower portion of the guide groove of the sill body through a connecting piece. When the temperature sensor monitors that the temperature in the guide groove is lower than a preset first temperature, the electric heating device is controlled to work at a first set power; when the electric heating device works at the first set power, if the temperature sensor monitors that the temperature in the guide groove is higher than the preset second temperature, the electric heating device is controlled to work at the second set power; the second temperature is higher than the first temperature, and the first set power is higher than the second set power.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a constant temperature sill for elevators. Background Art

[0002] The elevator landing sill is an important component of the elevator landing components. The landing door reciprocates in the sill groove through the door slider, and its function is to provide guidance for the movement of the landing door.

[0003] In cold regions or cold storage environments, the temperature is often low (below freezing or even tens of degrees below zero). When water enters the sill groove due to cleaning, it will quickly freeze and affect the opening and closing of the landing doors. Due to the irregular water flow, it is difficult to clean the ice in the sill groove. In addition, cleaning is a common situation, so cleaning the ice in the groove needs to be done frequently and synchronously. Each landing station needs to be cleaned, which is a large and complicated workload, seriously affecting the daily use of the elevator.

[0004] Although the prior art discloses removing ice from the sill by means of a heating device, it takes a certain amount of time to melt the ice, which affects the use time of the elevator.

[0005] Therefore, how to design a constant temperature sill specially used in cold environment so as to keep the temperature in the sill groove constant is a technical problem currently faced. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a constant temperature sill for an elevator, comprising a sill body, a temperature sensor and an electric heating device;

[0007] The temperature sensor monitors the temperature in the guide groove of the sill body; the electric heating device is fixed to the lower part of the guide groove of the sill body through a connecting piece;

[0008] When the temperature sensor detects that the temperature in the guide groove is lower than a preset first temperature, the electric heating device is controlled to operate at a first set power;

[0009] When the electric heating device operates at a first set power, if the temperature sensor detects that the temperature in the guide groove is higher than a preset second temperature, the electric heating device is controlled to operate at a second set power; the second temperature is higher than the first temperature, and the first set power is higher than the second set power.

[0010] Preferably, when the electric heating device is operating at the second set power, if the temperature sensor detects that the temperature in the guide groove is higher than a preset second temperature for a time threshold, the electric heating device is controlled to stop operating.

[0011] Preferably, the first temperature is 3 degrees Celsius.

[0012] Preferably, the second temperature is 8 degrees Celsius.

[0013] Preferably, the constant temperature sill for elevator further comprises a temperature protection structure, wherein the temperature protection structure is fixed at the lower part of the electric heating device, and the electric heating device is enclosed in a cavity formed by the temperature protection structure.

[0014] Preferably, there are at least two electric heating devices, which are arranged in sections within the length of the sill body.

[0015] Preferably, the arrangement spacing between the electric heating devices is no more than 300 mm.

[0016] Preferably, the width of the sill body ranges from 55 mm to 140 mm.

[0017] Compared with the prior art, the present invention can prevent ice from forming in the sill groove in a cold environment (cold storage, open outdoor environment) to affect the normal opening and closing of the floor door, eliminating the need for manual deicing during elevator stop, and ensuring the normal operation of the elevator. The present invention has a simple structure, is practical and reliable, and is applicable to various types of elevators, including passenger elevators, freight elevators, bed elevators, etc., and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0019] Figure 1 This is a schematic diagram of the constant temperature sill structure for an elevator in Example 1. DETAILED DESCRIPTION

[0020] The following describes the implementation methods of the present invention through specific specific embodiments, and those skilled in the art can fully understand other advantages and technical effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through different specific implementation methods, and the details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without deviating from the overall design concept of the invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other in the absence of conflict. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be interpreted as being limited to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary specific embodiments to those skilled in the art.

[0021] Example 1

[0022] like Figure 1 The embodiment shown provides a constant temperature sill for an elevator, comprising a sill body 1, a temperature sensor 2 and an electric heating device 3;

[0023] The temperature sensor 2 monitors the temperature in the guide groove of the sill body 1; the electric heating device 3 is fixed to the lower part of the guide groove of the sill body 1 through the connecting member 5;

[0024] When the temperature sensor 2 detects that the temperature in the guide groove is lower than a preset first temperature, the electric heating device 3 is controlled to operate at a first set power;

[0025] When the electric heating device 3 works at the first set power, if the temperature sensor 2 detects that the temperature in the guide groove is higher than the preset second temperature, the electric heating device 3 is controlled to work at the second set power;

[0026] The second temperature is higher than the first temperature, the first temperature is exemplarily set to 3 degrees Celsius, and the second temperature is exemplarily set to 8 degrees Celsius. The first set power is higher than the second set power.

[0027] Preferably, when the electric heating device 3 works at the second set power, if the temperature sensor 2 detects that the temperature in the guide groove is higher than the preset second temperature for a time threshold, the electric heating device 3 is controlled to stop working, so as to save energy after the ambient temperature rises.

[0028] Through the above-mentioned cycle control, the temperature of the guide groove of the sill body can be made to be between the first temperature and the second temperature range under cold temperature.

[0029] The constant temperature sill for elevators also includes a temperature protection structure 4, which is fixed to the lower part of the electric heating device 3, and the electric heating device 3 is surrounded by a cavity formed by the temperature protection structure 4. This can reduce heat loss, reduce energy consumption, and ensure a constant temperature effect. The material of the temperature protection structure 4 is thermal insulation wool, asbestos or glass wool, etc.

[0030] Preferably, there are at least two electric heating devices, which are arranged in sections within the length of the sill body. The spacing between the electric heating devices is no more than 300 mm. The width of the sill body ranges from 55 mm to 140 mm.

[0031] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A constant temperature sill for an elevator, characterized in that: It includes a sill body, a temperature sensor and an electric heating device; The temperature sensor monitors the temperature in the guide groove of the sill body; the electric heating device is fixed to the lower part of the guide groove of the sill body through a connecting piece; When the temperature sensor detects that the temperature in the guide groove is lower than a preset first temperature, the electric heating device is controlled to operate at a first set power; When the electric heating device is operating at the first set power, if the temperature sensor detects that the temperature in the guide groove is higher than a preset second temperature, the electric heating device is controlled to operate at the second set power; The second temperature is higher than the first temperature, and the first set power is higher than the second set power.

2. The constant temperature sill for elevator according to claim 1, characterized in that: When the electric heating device is working at the second set power, if the temperature sensor detects that the temperature in the guide groove is higher than the preset second temperature for a time threshold, the electric heating device is controlled to stop working.

3. The constant temperature sill for elevator according to claim 1, characterized in that: The first temperature is 3 degrees Celsius.

4. The constant temperature sill for elevator according to claim 1, characterized in that: The second temperature is 8 degrees Celsius.

5. The constant temperature sill for elevator according to claim 1, characterized in that: The constant temperature sill for elevator also includes a temperature protection structure, which is fixed at the lower part of the electric heating device, and the electric heating device is surrounded by a cavity formed by the temperature protection structure.

6. The constant temperature sill for elevator according to claim 1, characterized in that: There are at least two electric heating devices, which are arranged in sections within the length of the sill body.

7. The constant temperature sill for an elevator according to claim 3, characterized in that: The arrangement spacing between the electric heating devices is not greater than 300 mm.

8. The constant temperature sill for an elevator according to claim 1, characterized in that: The width of the sill body ranges from 55 mm to 140 mm.

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