CN213363812U

CN213363812U - Non-contact coding sensor for grouped sliding door

Info

Publication number: CN213363812U
Application number: CN202022911847.9U
Authority: CN
Inventors: 刘国清; 杨旭东
Original assignee: Chengdu Henggan Technology Co ltd
Current assignee: Chengdu Henggan Technology Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-06-04
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a non-contact coding sensor for grouping formula sliding door, including the tooth's socket coding metal induction plate of fixing at grouping formula sliding door, tooth's socket coding metal induction plate is provided with N tooth or groove from bottom to top according to perpendicular to the slip direction, has at least one tooth and a groove in N tooth or groove, and N is greater than or equal to 2; the code recognizer comprises N non-contact metal proximity switches corresponding to N teeth or grooves respectively, and sensing planes of the N non-contact metal proximity switches are located on the same plane; when the teeth and the grooves of the tooth space coding metal sensing plate approach the sensing plane, the non-contact metal proximity switches corresponding to the teeth and the grooves respectively output high and low levels or low and high levels, so as to form the output codes of the non-contact coding sensor. The beneficial effects of the utility model reside in that, marshalling formula sliding door is uncharged, adopts non-contact coding sensor can obtain the code of sliding door.

Description

Non-contact coding sensor for grouped sliding door

Technical Field

The utility model relates to a platform emergency exit technical field, especially a non-contact coding sensor for marshalling formula sliding door.

Background

With the rapid development of high-speed rail networks, the 'public transportation' operation mode is proposed, so that an automatic isolation device needs to be arranged between a platform and a track, just like a platform safety door arranged at present in a subway. And nearly 20 types of domestic high-speed rail cars are provided, and each type of car has a corresponding door opening position and door opening distance. The fixed position door opening mode for the subway can not be directly used on intercity railways and high-speed railways obviously. Therefore, at present, the domestic high-speed rail platform is not provided with a platform safety door. One solution to this problem is to make the sliding doors into a number of door combinations that can be freely grouped, and in the same group, the sliding doors can be separated and combined freely without mechanical connection. Thereby satisfying the door opening requirements of different vehicle types. For safety reasons, the sliding doors need to be designed in a passive mode, that is, the sliding doors cannot be electrified, which brings difficulty to the identification of the sliding door number in the same grouping, and the sliding door number identification signal is a necessary signal for controlling the movement of the sliding door.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a non-contact coding sensor for marshalling formula sliding door distinguishes many fan-shaped marshalling formula sliding door through the code to solve the problem that can not distinguish the sliding door of passive state.

Realize the utility model discloses the technical scheme of purpose does:

a non-contact coding sensor for a grouped sliding door comprises a tooth space coding metal induction plate fixed on the grouped sliding door, wherein the tooth space coding metal induction plate is provided with N teeth or grooves from bottom to top according to the sliding direction, at least one tooth and one groove are arranged in the N teeth or grooves, and N is more than or equal to 2; the code recognizer comprises N non-contact metal proximity switches corresponding to N teeth or grooves respectively, and sensing planes of the N non-contact metal proximity switches are located on the same plane; when the teeth and the grooves of the tooth space coding metal sensing plate approach the sensing plane, the non-contact metal proximity switches corresponding to the teeth and the grooves respectively output high and low levels or low and high levels, so as to form the output codes of the non-contact coding sensor.

The beneficial effects of the utility model reside in that, marshalling formula sliding door is uncharged, adopts non-contact coding sensor can obtain the code of sliding door. And the sliding door is a moving part, adopts a non-contact coding sensor, and has high operation reliability and long service life.

Drawings

FIG. 1 is an overall three-dimensional schematic view of a non-contact encoder sensor.

Fig. 2 is a three-dimensional schematic diagram of a sensor constructed from a non-contact metal proximity switch.

FIG. 3 is a three-dimensional schematic diagram of a tooth space coded metal induction plate of the non-contact coded sensor.

FIG. 4 is a three-dimensional schematic diagram of a five-bit encoding non-contact type encoding sensor.

Fig. 5 is an output waveform of a five-bit encoded non-contact encoder sensor.

FIG. 6 is a schematic view of the installation of a five-bit coded non-contact coded sensor.

Labeled as: the coded recognizer comprises a coded recognizer shell 100, a 1 st non-contact metal proximity switch 101, a 2 nd non-contact metal proximity switch 102, an N-1 st non-contact metal proximity switch 10(N-1) and an Nth non-contact metal proximity switch 10N. The method comprises the following steps that (1) a tooth space coding metal induction plate 200, teeth 201 of the tooth space coding metal induction plate and grooves 202 of the tooth space coding metal induction plate are arranged; the signal line 300 is output. The support structure comprises a support structure 1, a sliding door 2, a pulley 3 and a linear motor 4.

Detailed Description

Through linear electric motor driven many sliding doors, every linear electric motor controller needs to distinguish many sliding doors to realize the accurate control to every door. Different sliding door codes are identified through the non-contact type coding sensor, and then coding signals are input into the linear motor controller, so that the multiple doors are distinguished.

The noncontact encoder sensor is mainly composed of two parts as shown in fig. 1.

First, a coded identifier is formed by a housing 100 and a plurality of non-contact metal proximity switches. In fig. 2, a plurality of metal switches are arranged in order in the vertical direction, such as the 1 st non-contact metal proximity switch 101 and the 2 nd non-contact metal proximity switch 102. The performance of a metal proximity switch is such that the state of the metal proximity switch changes when a certain distance from the metal surface. If the original state of the metal proximity switch when the metal proximity switch is not in the proximity switch is off, the metal proximity switch is in low level output and is represented as a '0' state by binary. After approaching the metal, the switch state jumps to on, and is output at high level, and is represented as '1' state by binary. And vice versa. The non-contact metal proximity switches have the same performance, namely, the maximum induction distance of each metal proximity switch is the same. Each metal proximity switch has an output signal, and an output signal line 300 formed by signal lines of each non-contact metal proximity switch outputs a coded signal. The induction surfaces of the metal proximity switches are arranged on the same plane, so that the induction distances to the metal plates are the same. The number of metal proximity switches is determined by the number of codes required. All '0' codes and all '1' codes which are misjudged need to be removed. Assuming the number K of codes needed, the metal proximity switch is N. The relationship is as follows:

K＝2^N-2 (1)

second, a cogging coded metal induction plate 200 is shown in fig. 3. The induction plates are composed of freely combined tooth grooves according to the required coding number. The teeth 201 of the tooth space coded metal sensing plate and the grooves 202 of the tooth space coded metal sensing plate are realized in a free combination mode. In practical application, the induction plate is integrally machined according to a tooth groove structure required by coding. The total number of the teeth and the grooves is the same as that of the non-contact metal proximity switches of the identification code part. Assuming that the number of the metal proximity switches is N and the number of teeth of the cogging coded metal induction plate is G, the number of slots of the cogging coded metal induction plate is (N-G). The plane of the teeth 201 of the cogging coded metal induction plate is within the sensing range of the metal proximity switch, and the plane of the slots 202 of the cogging coded metal induction plate is not within the sensing range of the metal proximity switch. When a single metal proximity switch corresponds to a tooth structure, the output state is high, represented as a binary '1'. When a single metal proximity switch corresponds to a slot configuration, the output state is low, represented as a binary '0'.

Assuming that the maximum number of sliding doors required to be coded is 30, and the number of metal proximity switches required is 5 according to equation (1), a three-dimensional schematic diagram of a five-bit non-contact coding sensor is shown in fig. 4. Five metal proximity switches are fixed into a whole by the shell 100 to form an identification coding part of the non-contact coding sensor. The specific structure of the tooth space coded metal induction plate 200 is a tooth-groove-tooth structure, which constitutes one of the coded states, and the output signal thereof is shown in fig. 5. Represented in binary as 10101. When the tooth spaces of the metal coding plates are freely combined, the output of other states is represented by binary, and the following table shows that:

as shown in the above table, there are 30 different codes, and after the whole gullet code metal induction plate 200 corresponding to the codes is processed and installed on different sliding doors, the switching value signal is output through the code identifier to distinguish the different sliding doors.

In use, the mounting position is as shown in figure 6. The code recognizer composed of the case 100 and a plurality of non-contact type metal proximity switches is installed on the support structure 1, and the sliding door 2 with the cogging-code metal induction plate 200 is linearly moved by a pulley at an arbitrary distance, and its driving force is a linear motor 4. The length of the cogging coded metal induction plate 200 may be the same as the width of the sliding door 2, so that the sliding door can be coded at any position within the width range. There are several sliding doors in the straight direction from the paper surface to the inside, and the metal induction plates with different tooth space codes are installed on different sliding doors. When the sliding door 2 enters the sensing part of the code recognizer, the output signal line 300 outputs a code signal to the linear motor controller. When the sliding door enters the sensing range of the code recognizer, the code recognizer outputs a code signal and inputs the signal into the linear motor controller, so that the linear motor controller recognizes and controls the corresponding sliding door.

The utility model discloses can solve the problem that many sliding doors in linear motion are difficult to distinguish to adopt non-contact's mode, the operational reliability of sensor is high, long service life.

Claims

1. A non-contact coding sensor for a grouped sliding door is characterized by comprising a tooth space coding metal induction plate fixed on the grouped sliding door, wherein the tooth space coding metal induction plate is provided with N teeth or grooves from bottom to top according to the direction perpendicular to the sliding direction, at least one tooth and one groove are arranged in the N teeth or grooves, and N is more than or equal to 2; the code recognizer comprises N non-contact metal proximity switches corresponding to N teeth or grooves respectively, and sensing planes of the N non-contact metal proximity switches are located on the same plane; when the teeth and the grooves of the tooth space coding metal sensing plate approach the sensing plane, the non-contact metal proximity switches corresponding to the teeth and the grooves respectively output high and low levels or low and high levels, so as to form the output codes of the non-contact coding sensor.