CN218114729U - Escalator safety switch connecting cable - Google Patents

Abstract

The utility model discloses a connecting cable for a safety switch of an escalator, belonging to the technical field of safety switches of escalators, wherein the connecting cable is arranged inside an escalator truss and is connected with a control cabinet and at least one safety operation switch which are arranged inside the escalator truss; the connection cable includes: a main cable; the at least one tee joint component is arranged on the main cable and correspondingly connected with the at least one safe operation switch; the plug-in components are arranged on the main cable and are positioned between the three-way components and the control cabinet or between any two three-way components. The utility model provides an among the prior art staircase safety switch cable have the problem that the structure is complicated, the installation is difficult, reach and simplify the inside line overall arrangement of staircase to and reduce material configuration cost's effect.

Description

Escalator safety switch connecting cable

Technical Field

The utility model relates to an staircase safety switch technical field, in particular to staircase safety switch connecting cable.

Background

The safety switches of the escalator are generally distributed on the upper part and the lower part of the escalator, and when a fault or an accident occurs, the safety switches act to stop the escalator. At present, the overall arrangement of staircase safety switch cable generally is through each safety switch of staircase switch board wiring connection, specifically connects safety switch through upper and lower portion switching junction box, and the problem that this kind of mode exists is that staircase safety switch cable structure is comparatively complicated, and the accessory is more, and material configuration cost is higher.

Therefore, the escalator safety switch cable in the prior art is complex in structure and difficult to install, and the manufacturing cost of escalator safety switch cable assembly is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at: the utility model provides an staircase safety switch connecting cable, aims at solving among the prior art staircase safety switch cable and has the technical problem that the structure is complicated, the installation is difficult.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a connecting cable of a safety switch of a staircase, which is arranged inside a staircase truss and is connected with a control cabinet and at least one safety operation switch which are arranged inside the staircase truss; the connection cable includes:

a main cable;

the at least one tee joint component is arranged on the main cable and is correspondingly connected with the at least one safe operation switch;

the plug-in assembly is arranged on the main cable and is positioned between the three-way assembly and the control cabinet or between any two three-way assemblies.

Optionally, in the above escalator safety switch connection cable, the three-way component includes:

the top of the three-way wiring block is provided with a first wiring port, and the bottom of the three-way wiring block is provided with a second wiring port and a third wiring port;

one end of the first cable is inserted into the three-way junction block through the first junction, and the other end of the first cable is connected with the plug-in component;

one end of the second cable is inserted into the three-way junction block through the second junction, and the other end of the second cable is connected with the plug-in component;

and one end of the branch cable is inserted into the three-way junction block through the third junction port, and the other end of the branch cable is connected with the safe operation switch.

Optionally, in the above-mentioned staircase safety switch connection cable, be provided with in the tee junction piece:

the detection resistor is arranged on a lead of the first cable or the second cable inserted into the three-way junction block;

and a parallel connection terminal provided at a common connection point of the wires in which the first cable, the second cable, and the branch cable are inserted into the three-way connection block, respectively.

Optionally, in the escalator safety switch connecting cable, the detection resistor and the surface of the parallel terminal are both provided with an insulating heat shrink tube.

Optionally, in the escalator safety switch connecting cable, the plug-in assembly includes a male plug-in unit and a female plug-in unit which are connected in a plug-in manner;

the other end of the first cable is provided with the female plug-in, and the other end of the second cable is provided with the male plug-in.

Optionally, in the escalator safety switch connecting cable, the male plug-in component and the female plug-in component are connected in a plugging manner through a butt nut, the butt nut is sleeved on the male plug-in component, an internal thread is arranged on the inner surface of the butt nut, and an external thread is arranged on the outer surface of the female plug-in component.

Optionally, in the above escalator safety switch connecting cable, a port of the male plug-in unit is provided with an insertion ring, the insertion ring is provided with a positioning boss, and a port of the female plug-in unit is provided with an insertion groove corresponding to the insertion ring and a positioning groove corresponding to the positioning boss.

Optionally, in above-mentioned staircase safety switch connecting cable, the port department of public plug-in components still is provided with the connector, the port department of female plug-in components still be provided with the connecting hole that the connector corresponds, wherein, the connector with the quantity of connecting hole with the leader cable first cable with the quantity of wire is unanimous in the second cable, the connector with the connecting hole is electrically conductive metal.

Optionally, in the above escalator safety switch connecting cable, the male plug-in is further provided with a sealing ring groove for installing a waterproof sealing ring.

Optionally, in the above escalator safety switch connecting cable, the three-way junction block, the male plug-in unit and the female plug-in unit are all injection molded.

The utility model provides an above-mentioned one or more technical scheme can have following advantage or has realized following technological effect at least:

the utility model provides a staircase safety switch connecting cable, set up inside the staircase truss, with set up the switch board and at least one safe operation switch connection inside the staircase truss, connect a plurality of safe operation switches that the staircase work required with the switch board, the unified wiring is in the staircase truss, the installation is simple; this connecting cable includes the main cable, sets up tee bend subassembly and grafting subassembly on the main cable, is connected with the safe operation switch through tee bend subassembly, realizes being connected of a plurality of tee bend subassemblies or being connected of tee bend subassembly and switch board through grafting subassembly, can avoid under the less circumstances of some safe operation switches according to the suitable quantity of actual required configuration, and prior art still will dispose the switching junction box and lead to the problem that overall structure is complicated, adopts the utility model discloses a connecting cable not only can simplify the inside wiring overall arrangement of staircase, can also reduce material configuration cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a safety switch cable of an escalator in the prior art;

FIG. 2 is an exploded view of a prior art escalator safety switch cable configuration;

fig. 3 is an application scene diagram of the first embodiment of the escalator safety switch connecting cable of the present invention;

fig. 4 is a schematic structural view of a first embodiment of the escalator safety switch connecting cable of the present invention;

fig. 5 is an exploded view of the first embodiment of the escalator safety switch connecting cable of the present invention;

fig. 6 is a specific example diagram of a first embodiment of the escalator safety switch connecting cable of the present invention;

fig. 7 is a schematic view of the internal structure of a tee joint assembly in a second embodiment of the escalator safety switch connecting cable of the present invention;

FIG. 8 is an enlarged schematic view at A in FIG. 7;

fig. 9 is a schematic diagram of the insertion assembly in the second embodiment of the escalator safety switch connecting cable according to the present invention;

fig. 10 is a schematic structural view of a male plug in the plug assembly of the second embodiment of the escalator safety switch connecting cable of the present invention;

FIG. 11 is a disassembled view of FIG. 10;

fig. 12 is a schematic view of a port of a male plug in a plug assembly of a second embodiment of an escalator safety switch connecting cable according to the present invention;

fig. 13 is a schematic view of a port of a female connector in the plug assembly of the second embodiment of the escalator safety switch connecting cable of the present invention;

fig. 14 is a schematic connection diagram corresponding to different types of main cables in the second embodiment of the escalator safety switch connection cable of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the embodiment of the present invention, all the directional indicators (such as upper, lower, left, right, front, and rear … …) are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), if the specific posture is changed, the directional indicator is changed accordingly. In the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a device or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such device or system. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of another like element in a device or system that comprises the element. In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "connected" may be a fixed connection or a removable connection, or may be integral therewith; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either internally or in interactive relation. In the present application, if there is a description relating to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art. In addition, the technical solutions of the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The safety switches of the escalator are generally provided with a plurality of protection switches such as an emergency stop switch, a cover plate protection switch, an apron plate protection switch, a step sinking switch, a handrail belt entrance/exit switch and the like which are distributed on the upper part and the lower part of the escalator, and when a fault or an accident occurs, the safety switches act to stop the escalator. At present, the layout of the escalator safety switch cable generally connects each safety switch through the escalator control cabinet wiring, and as shown in fig. 1, the escalator safety switch cable in the prior art is schematically shown in structure.

In fig. 1, in the upper part of the escalator, an escalator control cabinet is connected with the top end of a main cable 10, the main cable 10 is connected with an upper transfer junction box 20 and is connected with a branch cable 50 through a pipe joint 51 arranged on the upper transfer junction box 20, then the branch cable 50 is connected with a safety switch 60 on the upper part of the escalator, the main cable 10 is connected with the upper transfer junction box 20 through a connecting terminal 11, then a plurality of main cables 10 are connected in a plug-and-socket manner through a heavy-duty connector 30 and are wired to the lower part of the escalator, wherein the distance between the upper transfer junction box 20 and a lower transfer junction box 40 is configured with the length of the cable according to the length of the escalator; in the lower part of the escalator, the main cable 10 is connected with the lower transfer junction box 40, and is connected with the branch cable 50 through the pipe joint 51 arranged on the lower transfer junction box 40, and is connected with the safety switch 60 on the lower part of the escalator through the branch cable 50, similarly, the main cable 10 is also connected with the lower transfer junction box 40 through the connecting terminal 11, and finally the bottom end of the main cable 10 is subjected to insulation sealing treatment, or the bottom end of the main cable 10 is connected with the auxiliary control cabinet, so that the wiring connection between the escalator control cabinet and a plurality of safety switches is realized. As shown in fig. 2, which is an exploded view of a safety switch cable structure of an escalator in the prior art, in the figure, terminal blocks 70 are provided in both an upper transit junction box 20 and a lower transit junction box 40, and the connection between a connection terminal 11 and a pipe joint 51 is realized through the terminal blocks 70, that is, the connection between a main cable 10 and a plurality of branch cables 50 is realized, so that the connection between an escalator control cabinet and a plurality of safety switches 60 is realized. Therefore, the escalator safety switch cable has the problems of complex structure, more accessories and higher material configuration cost.

In the cable wiring according to the related art, the processing methods include blanking, peeling, branch terminal crimping, branch parallel contact terminal row, and the like, and after the connection wiring is completed, it is necessary to perform mounting methods such as sealing and mounting the top cover and the bottom case of the junction box by screws, and tightening screws at each connection position. Meanwhile, due to the characteristics of high particularity and nonstandard rate of processing, in the installation process, except for the cooperation and processing of some semi-automatic equipment, other installation processes are basically completed by manual operation, and therefore, in the prior art, the escalator safety switch cable depends on manpower and a processing field, and the problems of complex processing technology, complex operation procedures, difficult installation and high manpower cost and installation cost exist.

Therefore, the escalator safety switch cable in the prior art is complex in structure and difficult to install, and the manufacturing cost of escalator safety switch cable assembly is increased.

In view of there is the technical problem that the structure is complicated, the installation is difficult in staircase safety switch cable among the prior art, the utility model provides a staircase safety switch connecting cable, concrete embodiment and implementation mode are as follows:

example one

Referring to fig. 3 to 6, the present embodiment proposes an escalator safety switch connection cable.

As shown in fig. 3, which is an application scenario diagram of the escalator safety switch connection cable, the connection cable 100 is disposed inside the escalator truss 200, and is connected to the control cabinet and at least one safety operation switch 300 disposed inside the escalator truss 200.

Specifically, the control cabinet inside the escalator truss 200 may include an upper control cabinet 201 disposed only at the upper portion or a lower control cabinet 202 disposed only at the lower portion, and may further include an upper control cabinet 201 disposed at the upper portion and a lower control cabinet 202 disposed at the lower portion, respectively. That is, the end of the connection cable 100 can be used in three applications, one in which only the upper control cabinet 201 is connected, the other in which only the lower control cabinet 202 is connected, and the other in which the upper control cabinet 201 and the lower control cabinet 202 are connected, respectively. In fig. 3, the connecting cables 100 are shown connected to an upper control cabinet 201 and a lower control cabinet 202 inside the escalator truss 200, respectively.

As shown in fig. 4, which is a schematic structural view of the connection cable 100, and as shown in fig. 5, which is an exploded structural view of the connection cable 100, the connection cable 100 may include:

a main cable 110; at least one tee assembly 120 disposed on the main cable 110, the at least one tee assembly 120 being correspondingly connected to the at least one safety run switch 300; and at least one plug assembly 130 arranged on the main cable 110, wherein the plug assembly 130 is positioned between the three-way assembly 120 and the control cabinet or between any two three-way assemblies 120.

Specifically, as shown in fig. 3, one end of the main cable 110 is connected to the upper control cabinet 201, as shown in fig. 4 and 5, the other end of the main cable 110 can be connected to the plug assembly 130, and the three-way assembly 120 is connected to the main cable 110 through the plug assembly 130; with continued reference to fig. 4 and 5, when the number of the three-way components 120 is greater than 1, the first three-way component 120 may be connected to the second three-way component 120 through one plug-in component 130, or may be connected to the main cable 110 through one plug-in component 130, for example, when the two three-way components 120 are far away, after connecting a section of long main cable 110, the second three-way component 120 may be connected to the second three-way component 120 through another plug-in component 130, and the second three-way component 120 may be connected to the lower control cabinet 202, if there is only one upper control cabinet and no lower control cabinet in the escalator truss 200, the third ports of the second three-way component 120, except for the port connected to the plug-in component 130 and the port connected to the safe operation switch 300, may be plugged by injection molding plugs.

Fig. 6 is a specific example of the escalator safety switch connection cable, and in conjunction with fig. 3, in this application scenario, the connection cable 100 includes a main cable 110; the 6 three-way components 120,6 which are arranged on the main cable 110 are correspondingly connected with the 6 safe operation switches 300, the upper part and the lower part of the escalator are respectively provided with 3 safe operation switches 300, and the corresponding upper part and the lower part of the escalator are also respectively provided with 3 three-way components 120; and 8 plug assemblies 130 disposed on the main cable 110. The specific connection relationship is as follows: one end of the main cable 110a is connected with the upper control cabinet 201, the other end is connected with the first end of the three-way component 120a through the plug-in component 130a, the second end of the three-way component 120a is connected with the safe operation switch 300a, the third end is connected with the first end of the three-way component 120b through the plug-in component 130b, the second end of the three-way component 120b is connected with the safe operation switch 300b, the third end is connected with the first end of the three-way component 120c through the plug-in component 130c, the third end is connected with one end of the main cable 110b through the plug-in component 130d, the main cable 110b can be arranged at a position in the middle of the escalator where the safe operation switch 300 is not needed to be connected, the length can be set according to actual needs, then, the other end of the main cable 110b is connected with the first end of the three-way component 120d through the plug-in component 130e, the second end of the three-way component 120d is connected with the safe operation switch 300d, the third end is connected with the first end of the three-way component 120e through the plug-in component 130f, the third end is connected with the safe operation switch 300 h, and the lower end of the control cabinet is connected with the plug-in control cabinet through the plug-in component 130 f.

It can be seen that in this example, there are 3 safety operation switches 300 on the upper part of the escalator and the lower part of the escalator, respectively, and if the prior art is adopted, two adapter junction boxes and a heavy-duty connector need to be configured, but in this embodiment, the connection can be realized only by a few simple tee assemblies 120 and plug assemblies 130, since the installation modes of the tee assemblies 120 and the plug assemblies 130 are simple compared with the connection modes of the adapter junction boxes, this embodiment has the effect of simple installation, and since the device costs of the tee assemblies 120 and the plug assemblies 130 are lower compared with the cost of the adapter junction boxes, this embodiment also has the effect of reducing the cost.

The escalator safety switch connecting cable is arranged in the escalator truss, is connected with the control cabinet and at least one safety operation switch which are arranged in the escalator truss, connects a plurality of safety operation switches required by the escalator to the control cabinet, and is uniformly distributed in the escalator truss, so that the escalator safety switch connecting cable is simple to install; this connecting cable includes the leader cable, sets up tee bend subassembly and the grafting subassembly on the leader cable, is connected with the safe operation switch through tee bend subassembly, realizes being connected of a plurality of tee bend subassemblies or being connected of tee bend subassembly and switch board through the grafting subassembly, can be according to the suitable quantity of actual required configuration, avoids under the less condition of some safe operation switches, and prior art still will dispose the problem that the switching junction box leads to overall structure complicacy, adopts the utility model discloses a connecting cable not only can simplify the inside wiring overall arrangement of staircase, can also reduce material configuration cost.

Example two

Referring to fig. 3 to 14, on the basis of the first embodiment, the present embodiment further provides an escalator safety switch connection cable.

Further, the tee assembly 120 includes:

the junction box comprises a three-way junction block 121, wherein a first junction port 1211 is arranged at the top of the three-way junction block 121, and a second junction port 1212 and a third junction port 1213 are arranged at the bottom of the three-way junction block;

a first cable 122, one end of which is inserted into the three-way junction block 121 through the first junction 1211, and the other end of which is connected to the plug assembly 130;

one end of the second cable 123 is inserted into the three-way junction block 121 through the second junction 1212, and the other end of the second cable 123 is connected to the plug assembly 130;

and a branch cable 124, one end of the branch cable 124 being inserted into the junction block 121 through the third connection port 1213, and the other end being connected to the safety operation switch 300.

Specifically, fig. 7 is a schematic diagram illustrating an internal structure of the tee assembly 120. The three-way connection block 121 is a hollow injection molding casing, and three connection holes are disposed on the casing, which are respectively a first connection port 1211, a second connection port 1212 and a third connection port 1213, the first connection port 1211 is used for connecting the first cable 122, the second connection port 1212 is used for connecting the second cable 123, and the third connection port 1213 is used for connecting the branch cable 124. When each cable passes through the wiring mouth and inserts inside three-way junction block 121, can fix through the form of moulding plastics of mould hot melt extrusion, realize being connected of cable and three-way junction block 121.

The hollow inside of the three-way junction block 121 is used for connecting cables inserted into three junction ports, and the specific connection mode can be set according to actual conditions. The main cable 110 may be a two-wire cable, a three-wire cable, a four-wire cable or a five-wire cable, and the connection relationship between the cables inserted into the three ports of the three-way junction block 121, that is, the cables in the first cable 122, the second cable 123 and the branch cable 124, is different according to the number of the wires in the main cable 110.

Fig. 14 shows a schematic diagram of the connection of different types of main cables 110. When the main cable 110 is a two-wire conductor, the first cable 122 and the second cable 123 are both two-wire conductors, the branch cable 124 is also a two-wire conductor, and the connection manner between the two conductors of the branch cable 124 and the main cable 110 in the tee assembly 120 can be arranged as shown in fig. 14 (a) and 14 (b); when the main cable 110 is a three-wire cable, the first cable 122 and the second cable 123 are both three-wire cables, the branch cable 124 is a four-wire cable, and the connection manner of the four wires of the branch cable 124 and the main cable 110 in the tee assembly 120 can be laid out as shown in fig. 14 (c); when the main cable 110 is a four-wire conductor, the first cable 122 and the second cable 123 are both four-wire conductors, the branch cable 124 is also a four-wire conductor, and the connection manner of the four conductors of the branch cable 124 and the main cable 110 in the tee assembly 120 can be laid out as shown in fig. 14 (d); when the main cable 110 is a five-wire cable, the first cable 122 and the second cable 123 are both five-wire cables, the branch cable 124 is a four-wire cable, and the connection manner of the four wires of the branch cable 124 and the main cable 110 in the tee assembly 120 can be laid out as shown in fig. 14 (e).

Therefore, in this embodiment, the number of the wires in the main cable 110, the first cable 122 and the second cable 123 is the same, and the wires may be five-wire wires, four-wire wires, three-wire guide wires or two-wire wires, and the outer layer of the wires may be made of PVC material, low smoke halogen-free flame retardant type or rubber material. When the main cable 110 is a five-wire, four-wire, or three-wire cable, the branch cable 124 is a four-wire cable, and when the main cable 110 is a two-wire cable, the branch cable 124 is a two-wire conductor, and the connection manner of the branch cable 124 with the first cable 122 and the second cable 123 can be set according to actual conditions.

Further, the three-way junction block 121 is provided with:

a detection resistor 125 disposed on a wire of the three-way junction block 121 into which the first cable 122 or the second cable 123 is inserted;

and a junction terminal 126 provided at a common junction of the wires of the three-way junction block 121 into which the first cable 122, the second cable 123, and the branch cable 124 are inserted, respectively.

Specifically, as shown in fig. 5 and 7, one end of the first cable 122 is inserted into the three-way junction block 121, and is subjected to needle-type riveting with the second cable 123 and/or the branch cable 124 through the shunt terminal 126, and the other end can be connected with the plug assembly 130, so as to achieve connection with the escalator control cabinet such as the upper control cabinet 201 or achieve connection with the second cable 123 in the other three-way junction assembly 120. One end of the second cable 123 is inserted into the three-way junction block 121, and is pin-riveted with the first cable 122 and/or the branch cable 124 through the parallel terminal 126, and the other end can be connected with the plug assembly 130, so as to realize connection with the first cable 122 in another three-way assembly 120 or realize connection with an escalator control cabinet such as a lower control cabinet 202. One end of the branch cable 124 is inserted into the three-way junction block 121, and is needle-riveted to the first cable 122 and the second cable 123 through the parallel terminal 126, and the other end is connected to the safety operation switch 300.

FIG. 8 is an enlarged schematic view of the section A in FIG. 7; as shown in fig. 7 and 8, the detecting resistor 125 is connected to the first cable 122, and it is understood that the detecting resistor 125 may also be connected to the second cable 123, which may be set according to actual requirements. The detection resistor 125 can detect the resistance value change in the line, and perform alarm positioning to judge whether the line is operating normally. The detected resistance value can be sent to the control cabinet through a cable, and is judged by a controller in the control cabinet.

Further, the surfaces of the detection resistor 125 and the parallel terminal 126 are each provided with an insulating heat shrink tube 1251.

As shown in fig. 8, an insulating heat shrink tube 1251 may be provided on the surface of each of the detection resistor 125 and the parallel terminal 126. The insulating heat shrinkable tube 1251 may be heat shrunk by a heat gun to be completely attached to the detection resistor 125 or the parallel terminal 126, thereby protecting the detection resistor 125 and the parallel terminal 126.

Further, the plug assembly 130 includes a male plug 131 and a female plug 132 which are connected in a plug manner;

the female connector 132 is disposed at the other end of the first cable 122, and the male connector 131 is disposed at the other end of the second cable 123.

As shown in fig. 9, which is a schematic illustration of the plug assembly 130, the plug assembly 130 is used as a connector for connecting the main cable 110 and the tee assembly 120 or any two tee assemblies 120 by plugging or unplugging the male plug 131 and the female plug 132.

Furthermore, the male plug 131 and the female plug 132 are connected by a docking nut 1311, the docking nut 1311 is sleeved on the male plug 131, the internal surface of the docking nut 1311 is provided with an internal thread 1312, and the external surface of the female plug 132 is provided with an external thread 1321.

Specifically, the plug-in connection of the male plug-in unit 131 and the female plug-in unit 132 can be realized by clockwise rotating and fastening the butt-joint nut 1311, and the plug-in connection mode is simple and convenient to install.

Furthermore, a port of the male plug 131 is provided with a plug ring 1315, the plug ring 1315 is provided with a positioning boss 1313, and a port of the female plug 132 is provided with a plug groove 1324 corresponding to the plug ring 1315 and a positioning groove 1322 corresponding to the positioning boss 1313.

Fig. 10 is a schematic structural view of the male plug 131 in the plug assembly 130, fig. 11 is a disassembled view of fig. 10, fig. 12 is a schematic port view of the male plug 131, and fig. 13 is a schematic port view of the female plug 132. The ports of the male member 131 and the female member 132 may be provided as cylindrical plug-in ports. The positioning boss 1313 and the positioning groove 1322 are correspondingly arranged, and the effect of preventing wrong insertion and positioning is achieved. The plug ring 1315 can be fully inserted into the plug slot 1324, thereby completing the plug of the male plug 131 with the female plug 132.

Furthermore, a connecting head 1314 is further arranged at a port of the male plug-in 131, a connecting hole 1323 corresponding to the connecting head 1314 is further arranged at a port of the female plug-in 132, wherein the number of the connecting head 1314 and the connecting hole 1323 is consistent with the number of the conducting wires in the main cable 110, the first cable 122 and the second cable 123, and the connecting head 1314 and the connecting hole 1323 are both made of conductive metal.

Specifically, when the male plug 131 is plugged into the female plug 132, the connector 1314 is inserted into the connection hole 1323 to achieve the power-on connection. The number of the connecting heads 1314 is the same as that of the connecting holes 1323, and when the connecting mode of the connecting cable 100 is the connecting mode shown in fig. 14 (a) and 14 (b), the connecting heads 1314 are provided in two, as shown in fig. 12 (a), and correspondingly, the connecting holes 1323 are also provided in two, as shown in fig. 13 (a); when the connection mode of the connection cable 100 is the connection mode shown in fig. 14 (c), the number of the connection heads 1314 is three as shown in fig. 12 (b), and correspondingly, the number of the connection holes 1323 is also three as shown in fig. 13 (b); when the connection mode of the connection cable 100 is the connection mode shown in fig. 14 (d), the number of the connection heads 1314 is four, as shown in fig. 12 (c), and correspondingly, the number of the connection holes 1323 is also four, as shown in fig. 13 (c); when the connection mode of the connection cable 100 is the connection mode shown in fig. 14 (e), the connection heads 1314 are provided in five as shown in fig. 12 (d), and correspondingly, the connection holes 1323 are also provided in five as shown in fig. 13 (d).

Further, a sealing ring groove 1316 is provided on the male insert 131 for installing a waterproof sealing ring 1317.

Specifically, the sealing ring groove 1316 and the waterproof sealing ring 1317 may be annular structures, and the waterproof sealing ring 1317 is sleeved on the sealing ring groove 1316 to achieve sealed connection, so that the plug assembly 130 has waterproof and dustproof effects. Compared with the mode that a waterproof processing technology needs to be added to the junction box in the prior art, the plug-in assembly 130 of the embodiment is more convenient to process and lower in configuration cost.

Further, the three-way junction block 121, the male plug 131 and the female plug 132 are all injection molded.

Injection moulding's three-way junction block 121, public plug-in components 131 and female plug-in components 132, size of a dimension and specific profile all can set for according to actual conditions, and injection moulding not only can completely cut off the electric energy, prevents the electric leakage, still is very durable. The male plug 131 and the female plug 132 can be made of flame retardant materials of different grades such as V0, V1, V2, etc., and the three-way junction block 121 can be made of different types of materials such as ABS, PVC, aluminum, copper, steel, iron, etc.

Compared with the prior art, the escalator safety switch connecting cable of the embodiment cancels high-cost devices such as a switching junction box, a terminal strip and a heavy-load connector, correspondingly does not have installation processes such as threading, fixing and the like of the switching junction box, realizes the plugging of a plurality of tee joint assemblies only through the plugging assembly, can realize the connection relation and the layout of a plurality of safety operation switches and an escalator control cabinet, and is simple to install and simple in processing process. And, the connecting cable of this embodiment still has waterproof function, compares prior art and needs to carry out waterproof processing in addition to the junction branch box and obtain the mode that waterproof terminal box was installed again, and the connecting cable of this embodiment can not establish waterproof sealing washer with the cover when not needing waterproofly, if need waterproofly, then directly on public plug-in components the cover establish waterproof sealing washer alright, has simplified waterproof technology, and it is more convenient to install. The connecting cable of the embodiment can obviously improve the problems of complex installation and high cost of the safety operation switch cable of the escalator.

By using the connecting cable provided by the utility model, the modular assembly of the escalator safe operation switch connecting cable product can be formed, so that the cable configuration of the safety loop matched with the escalator and the cable manufacturing standard are gradually unified; the lengths of the cable sections can be distinguished through operation options, batch streamlined production and warehouse semi-finished product stock are formed, the existing finished product is directly taken to correspond to operation, screwing type assembly connection is carried out, and cable layout in the escalator is achieved. The utility model provides a connecting cable, it is applicable in all kinds of staircase safety circuit, for example conventional indoor staircase, waterproof type staircase, pavement staircase etc. simple installation. Install in the staircase truss, compare prior art's installation step and technology, it is more simple and convenient, practiced thrift staircase configuration cost, still saved human cost and installation cost.

It should be noted that the numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments. The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all the concepts of the present invention utilize the equivalent structure transformation of the content of the specification and the attached drawings, or directly or indirectly applied to other related technical fields, all included in the patent protection scope of the present invention.

Claims (10)

1. A connection cable for escalator safety switches is characterized by being arranged inside an escalator truss and connected with a control cabinet and at least one safety operation switch which are arranged inside the escalator truss; the connection cable includes:

a main cable;

the at least one tee joint component is arranged on the main cable and is correspondingly connected with the at least one safe operation switch;

the plug-in assembly is arranged on the main cable and is positioned between the three-way assembly and the control cabinet or between any two three-way assemblies.

2. An escalator safety switch connection cable according to claim 1, wherein the tee assembly comprises:

the top of the three-way wiring block is provided with a first wiring port, and the bottom of the three-way wiring block is provided with a second wiring port and a third wiring port;

one end of the first cable is inserted into the three-way junction block through the first junction, and the other end of the first cable is connected with the plug-in component;

one end of the second cable is inserted into the three-way connecting block through the second connecting port, and the other end of the second cable is connected with the plug-in component;

and one end of the branch cable is inserted into the three-way junction block through the third junction port, and the other end of the branch cable is connected with the safe operation switch.

3. An escalator safety switch connecting cable as claimed in claim 2, wherein the three-way junction block is provided with:

the detection resistor is arranged on a lead of the first cable or the second cable inserted into the three-way junction block;

and a parallel connection terminal provided at a common connection point of the wires of the first cable, the second cable, and the branch cable inserted into the three-way junction block, respectively.

4. An escalator safety switch connecting cable according to claim 3, wherein the surfaces of the detection resistor and the parallel terminal are provided with insulating heat-shrinkable tubes.

5. An escalator safety switch connecting cable according to claim 2, wherein the plug-in assembly comprises male and female plug-in units for plug-in connection;

the other end of the first cable is provided with the female plug-in unit, and the other end of the second cable is provided with the male plug-in unit.

6. An escalator safety switch connecting cable according to claim 5, characterized in that the male plug-in unit and the female plug-in unit are connected in a plugging manner through a butt nut, the butt nut is sleeved on the male plug-in unit, an internal thread is arranged on the inner surface of the butt nut, and an external thread is arranged on the outer surface of the female plug-in unit.

7. An escalator safety switch connecting cable according to claim 6, wherein the port of the male plug is provided with a plug ring, the plug ring is provided with a positioning boss, and the port of the female plug is provided with a plug groove corresponding to the plug ring and a positioning groove corresponding to the positioning boss.

8. An escalator safety switch connecting cable according to claim 7, wherein the port of the male plug-in unit is further provided with a connector, the port of the female plug-in unit is further provided with a connecting hole corresponding to the connector, wherein the number of the connector and the connecting hole is the same as the number of the wires in the main cable, the first cable and the second cable, and the connector and the connecting hole are both made of conductive metal.

9. An escalator safety switch connecting cable according to claim 6, wherein the male plug is further provided with a sealing ring groove for installing a waterproof sealing ring.

10. An escalator safety switch connecting cable according to claim 5, wherein the three-way junction block, the male plug and the female plug are injection molded.

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