CN219676196U - Switch positioning and repositioning detection device - Google Patents

Abstract

The utility model discloses a turnout positioning and repositioning detection device, which comprises a signal receiving processing board loaded with a CPU chip and a detection unit; each detection unit comprises a first encoder, a second encoder, a positioning and reversing travel switch and a push rod, wherein the positioning and reversing travel switch is provided with a positioning switch and a reversing switch, the first encoder forms a first loop through a cable and the positioning switch, the second encoder forms a second loop through the cable and the reversing switch, and the push rod can be respectively contacted with the positioning switch and the reversing switch so as to control the on-off states of the first loop and the second loop. The utility model uses the push rod to control the on and off of the positioning and reversing travel switch, so that the code sender sends the electric frequency signal with fixed frequency to the signal receiving processing board, and related personnel can judge whether the turnout has faults and the types of the faults according to the information provided by the electric frequency signal, thereby facilitating the related personnel to check the problems in the turnout. The utility model is suitable for detecting the turnout.

Description

Switch positioning and repositioning detection device

Technical Field

The utility model belongs to the technical field of detection devices, and particularly relates to a turnout positioning and repositioning detection device.

Background

The position of the switch is an important factor concerning the driving safety, so the switch control circuit must comply with the fail-safe principle. In the current production operation activities, the control circuit of the electric switch machine is widely adopted and is divided into a switch starting circuit and a switch indicating circuit, and outdoor wires of the two circuits are often combined together due to the consideration of production cost.

In the case of a switch circuit, the switch indication circuit is not only used for supervising the position of the switch, but also assumes an important responsibility in the process of implementing the interlock, so that the switch indication circuit must take perfect fault-protection measures and meet the following technical requirements:

1. the broken wire detection can be realized;

2. mixed line detection can be realized;

3. when the switch is in the state of switching, squeezing and the like, the switch should be in the non-representation state.

In order to meet the above requirements, a set of relatively mature expression circuits have been designed in the current production operation activities. However, in practical operation, the present circuit can better meet the technical requirements regarding production and safety, but still has some problems to be solved.

In the turnout indicating circuit adopted at the present stage, the devices such as the polarization safety relay used for judging whether turnout disconnection, mixed line and the like occur are limited by the performance and the adaptability to temperature, the turnout indicating circuit cannot be placed in an outdoor environment (-40-70 ℃) with insolation or extremely cold, and the turnout indicating circuit must be placed in a room (-5-40 ℃) with moderate temperature, so that the length of a cable required to be laid between the polarization safety relay and a point switch is greatly increased, the laid cable is used as a large cost source in the turnout circuit, and the cost problem caused by laying a long cable is not neglected.

In addition, the turnout indication circuit adopted at the present stage judges whether turnout has the conditions of broken lines, mixed lines and the like through equipment such as a polarity safety relay and the like, the equipment has the problems of high cost, inconvenient carrying and installation, inadequately visual performance on problems existing on roads and the like, the precision is easily influenced by external environment and temperature, the turnout indication circuit cannot be placed outdoors for a long time, and besides the problems of associated cost, the problems of the turnout indication circuit per se are considered.

Disclosure of Invention

The utility model mainly aims to provide a turnout positioning and reversing detection device, which is provided with a signal receiving processing board with a CPU chip with stronger temperature tolerance and a code sender for intuitively representing conditions such as turnout disconnection, mixed line and the like in the form of digital signals, so that the problems of the cost and the unintelligible fault representation of the manual turnout positioning and reversing detection device are solved, and the turnout positioning and reversing detection device has a certain practical value.

According to a first aspect of the present utility model, there is provided a switch positioning and repositioning detection device comprising:

a signal receiving processing board loaded with a CPU chip;

the detection device comprises at least one detection unit, each detection unit comprises a first encoder, a second encoder, a positioning and reversing travel switch and a push rod, wherein the positioning and reversing travel switch is provided with a positioning switch and a reversing switch, the first encoder forms a first loop through a cable and the positioning switch, the second encoder forms a second loop through the cable and the reversing switch, and the push rod can be respectively contacted with the positioning switch and the reversing switch to control the on-off states of the first loop and the second loop.

In a specific embodiment of the present utility model, the first encoder is connected to the signal receiving processing board through a first cable and a second cable, and the second encoder is connected to the signal receiving processing board through a third cable and a fourth cable.

In a specific embodiment of the present utility model, the first encoder is connected to the signal receiving processing board through a first cable, the second encoder is connected to the signal receiving processing board through a second cable, and the push rod is connected to the signal receiving processing board through a third cable.

In a particular embodiment of the utility model, there is a significant difference in the electrical frequency signals provided by the first and second encoders located in the same detection unit.

In a specific embodiment of the present utility model, the electrical frequency signal of the first encoder is 400Hz, and the electrical frequency signal of the second encoder is 450Hz.

In a particular embodiment of the utility model, a detection unit corresponds to a set of switches.

One of the above technical solutions of the present utility model has at least one of the following advantages or beneficial effects: according to the utility model, the first encoder and the second encoder are connected with the positioning and reversing travel switch, and the push rod is used for controlling the on-off of the positioning and reversing travel switch, so that the first encoder and the second encoder send electric frequency signals with fixed frequency to the signal receiving and processing board, and through the frequency of the electric signals and the loop position of the received signals, related personnel can judge whether the turnout has faults and the types of the faults according to the information provided by the electric frequency signals, thereby overcoming the defect that the polarity bias relay in the traditional turnout representation circuit is not visual enough for the circuit state representation, converting the description into more visual, and facilitating the related personnel to examine the problems in the turnout. The signal receiving processing board can work in an environment of 85 ℃ at the highest bearing, and has strong tolerance to temperature change and strong applicability. The utility model is suitable for detecting the turnout.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a schematic diagram of one embodiment of the present utility model;

fig. 2 is a schematic diagram of a second embodiment of the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may explicitly or implicitly include one or more features.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and for example, it may be a fixed connection or an active connection, or it may be a detachable connection or a non-detachable connection, or it may be an integral connection; may be mechanically connected, may be electrically connected, or may be in communication with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements, indirect communication or interaction relationship between the two elements.

The following disclosure provides many different embodiments, or examples, for implementing different aspects of the utility model.

Referring to fig. 1, the switch positioning and repositioning detection device includes:

a signal reception processing board 10, the signal reception processing board 10 being loaded with a CPU chip;

at least one detecting unit corresponds to a group of turnouts, each detecting unit comprises a first encoder 11, a second encoder 12, a positioning reversing travel switch 13 and a push rod 14, the positioning reversing travel switch 13 is provided with a positioning switch 131 and a reversing switch 132, the first encoder 11 forms a first loop through a cable and the positioning switch 131, the second encoder 12 forms a second loop through the cable and the reversing switch 132, and the push rod 14 can be respectively contacted with the positioning switch 131 and the reversing switch 132 to control the on-off states of the first loop and the second loop.

The signal receiving processing board 10 can work in an environment of 85 ℃ at the highest bearing, has strong tolerance to temperature change, is responsible for receiving and processing the electric frequency signals sent from the code sender, and can judge whether the turnout has faults and the types of the faults according to the information provided by the electric frequency signals.

The push rod 14 provides the function of controlling the on-position switch 132 to turn on the position or reverse position travel switch by controlling the direction of the push rod 14 and to operate the corresponding encoder. The device is manually controlled by a person, and can effectively help related personnel to remove faults.

The function of the code sender is to send the preset fixed frequency electric frequency signal to the signal receiving processing board 10 through the cable, the preset frequencies of different code senders are different, in this way, the broken line or mixed line condition of the circuit can be represented by a more visual electric frequency signal form.

The first encoder 11, the second encoder 12 are connected with the positioning and reversing travel switch 13, and the push rod 14 is used for controlling the closing and opening of the positioning and reversing travel switch 13, so that the first encoder 11 and the second encoder 12 send electric frequency signals with fixed frequency to the signal receiving and processing board 10, and related personnel can judge whether a turnout has faults and the types of the faults according to the information provided by the electric frequency signals through the frequency of the electric signals and the loop position of the received signals, thereby overcoming the defect that a polarity bias relay in a traditional turnout representation circuit is not visual enough for the circuit condition representation, converting the description into more visual, and facilitating the related personnel to examine the problems in the turnout. The signal receiving processing board 10 can work in an environment of 85 ℃ at the highest bearing, and has strong tolerance to temperature change and strong applicability.

In one embodiment of the present utility model, the first encoder 11 is connected to the signal receiving processing board 10 through a first cable 21 and a second cable 22, and the second encoder 12 is connected to the signal receiving processing board 10 through a third cable 23 and a fourth cable 24.

In one embodiment of the present utility model, as shown in fig. 2, the first encoder 11 is connected to the signal receiving processing board 10 through a first cable 21, the second encoder 12 is connected to the signal receiving processing board 10 through a second cable 22, and the push rod 14 is connected to the signal receiving processing board 10 through a third cable 23, so that the number of cables is reduced, and the cost for laying the cables is further reduced.

In one embodiment of the present utility model, there is a significant difference in the electrical frequency signals provided by the first and second encoders 11, 12 located in the same detection unit. Preferably, the electric frequency signal of the first encoder 11 is 400Hz, and the electric frequency signal of the second encoder 12 is 450Hz.

The working principle is as follows:

when the related personnel use the device to check and remove faults, firstly, electric frequency signals with different frequencies need to be preset for each code sender, and in order to be capable of checking the device and removing faults more conveniently, the electric frequency signals arranged by the different code senders of the same group of turnouts need to have obvious difference values (such as 400Hz and 450 Hz).

When checking each group of switches, the push rod 14 corresponding to each group of switches needs to be pushed first, and because the push rod 14 can only be connected with one side of the positioning switch 132 at the same time, only one code sender is in working state at the same time at the same switch under the normal working state, and under the normal condition, the signal receiving and processing board 10 only receives one group (one loop) of electric frequency signals.

Taking the first switch 15 consisting of the first loop and the second loop in fig. 1 as an example, assuming that the preset frequency of the first encoder 11 is set to 400Hz and the preset frequency of the second encoder 12 is set to 450Hz, the following situations occur when the push rod 14 is pushed.

(1) The push rod 14 is not pushed, the device is in a non-working state, but the signal receiving processing board 10 receives electric frequency signals of 400Hz, 450Hz or beyond, at this time, as two loops in the first turnout 15 are not working, mixed line conditions between different turnouts can occur at this time, and one or more preset electric frequency signals of the working code transmitters in the mixed line turnouts are consistent with the two code transmitters in the current checking turnout group. When troubleshooting, the uniqueness of the preset electric frequency signal of each code sender is ensured to be checked firstly, and then the mixed line condition among different turnouts is checked.

(2) Pushing the push rod 14 to close the positioning switch 131 at one side of the first encoder 11 of the push rod 14, and enabling the first encoder 11 to work, wherein the signal receiving processing board 10 receives 400Hz and electric frequency signals (such as 600 Hz) except 400Hz, and at the moment, the mixed line condition among different bifurcation can occur; pushing the push rod 14, the flip switch 132 on the second encoder 12 side of the push rod 14 is closed, and the second encoder 12 works, but the signal receiving processing board 10 receives 450Hz and the electric frequency signals (such as 600 Hz) except 450Hz, and at this time, the mixed line condition between different branches may also occur. When this occurs, the problem should be eliminated according to the switch where the problem occurs in the code sender positioning corresponding to the extra electrical signal that occurs.

(3) Pushing the push rod 14 to enable a positioning switch 131 on one side of a first encoder 11 of the push rod 14 to be closed, enabling the first encoder 11 to work, and enabling a signal receiving processing board 10 to receive 400Hz electric frequency signals, so that a cable on one side of the first encoder 11 works normally; pushing the push rod 14, the inversion switch 132 on the second encoder 12 side of the push rod 14 is closed, the second encoder 12 works, and the signal receiving processing board 10 receives the 450Hz electric frequency signal, so that the cable on the second encoder 12 side works normally. If no fault is found after the two tests, the group of switches can be judged to be fault-free.

(4) Pushing the push rod 14 to close the positioning switch 131 at one side of the first encoder 11 of the push rod 14, and operating the first encoder 11, wherein if the signal receiving processing board 10 does not receive an electrical frequency signal, a cable at one side of the first encoder 11 may have a disconnection fault; pushing the push rod 14, the flip switch 132 on the second encoder 12 side of the push rod 14 is closed, the second encoder 12 works, but the signal receiving processing board 10 does not receive the electrical frequency signal, and the cable on the second encoder 12 side may have a broken line fault. If this occurs, it is necessary to check the corresponding cable breakage condition at the fault occurrence side.

(5) Pushing the push rod 14 to close the positioning switch 131 at one side of the first encoder 11 of the push rod 14, and enabling the first encoder 11 to work, wherein the signal receiving processing board 10 is connected with the first loop and the second loop to receive 400Hz electric frequency signals, so that a cable at one side of the first encoder 11 can have mixed line faults in a group, and the second loop is communicated under the condition that the inversion switch 132 is not connected; pushing the push rod 14 to close the flip switch 132 on the second encoder 12 side of the push rod 14, and enabling the second encoder 12 to work, wherein the first loop and the second loop of the signal receiving processing board 10 both receive 450Hz electric frequency signals, so that a cable on the second encoder 12 side may have a mixed line fault in the group, and the first loop is communicated under the condition that the flip switch 132 is not connected; if this occurs, it is necessary to examine the mixed line condition in the switch group.

Various typical fault conditions are summarized in table 1.

Table 1: typical fault correspondence table

In the above table, "-" indicates an unopened (non-operating) state, "ring" indicates an on (operating) state, and "/" indicates no participation in the judgment.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (6)

1. Switch positioning and repositioning detection device, its characterized in that includes:

a signal receiving processing board loaded with a CPU chip;

the detection device comprises at least one detection unit, each detection unit comprises a first encoder, a second encoder, a positioning and reversing travel switch and a push rod, wherein the positioning and reversing travel switch is provided with a positioning switch and a reversing switch, the first encoder forms a first loop through a cable and the positioning switch, the second encoder forms a second loop through the cable and the reversing switch, and the push rod can be respectively contacted with the positioning switch and the reversing switch to control the on-off states of the first loop and the second loop.

2. The switch positioning and repositioning detection device according to claim 1, wherein the first encoder is connected to the signal receiving and processing board through a first cable and a second cable, and the second encoder is connected to the signal receiving and processing board through a third cable and a fourth cable.

3. The switch positioning and repositioning detection device according to claim 1, wherein the first encoder is connected with the signal receiving and processing board through a first cable, the second encoder is connected with the signal receiving and processing board through a second cable, and the push rod is connected with the signal receiving and processing board through a third cable.

4. A switch positioning and reversing detection device according to any one of claims 1 to 3, wherein the electrical frequency signals provided by the first and second encoders located in the same detection unit are significantly different.

5. The switch positioning and repositioning detection device of claim 4 wherein the electrical frequency signal of the first encoder is 400Hz and the electrical frequency signal of the second encoder is 450Hz.

6. The switch positioning and repositioning detection apparatus of claim 1 wherein one detection unit corresponds to a group of switches.