Escalator floor plate detection safety device

Abstract

The utility model discloses and provides an escalator floor plate detection safety device which comprises a mounting bottom plate, a rotary trigger piece, a tension spring and a safety switch, the safety switch is arranged at the bottom of the mounting bottom plate, the rotary trigger piece is rotationally connected to the mounting bottom plate, one end of the rotary trigger piece abuts against the safety switch, and the other end of the rotary trigger piece abuts against the tension spring. And one end of the tension spring is connected with the rotating triggering piece, and the other end of the tension spring is connected with the mounting bottom plate. According to the utility model, the use of the normally closed contact of the safety switch is ensured, and meanwhile, the normally closed contact has the characteristic of forced breaking, so that the normally closed contact of the safety switch must be broken under the forced pulling force of the tension spring, the effectiveness of the escalator safety device is improved, and the situation that a common safety switch contact cannot be broken due to adhesion is prevented.

Description

Technical Field

[0001] The present disclosure relates to the technical field of escalators, and in particular to an escalator floor plate detection safety device. Background Art

[0002] In the national standard for escalators, electrical safety devices must be installed on the inspection cover floors. The specific requirements for safety switches are: their action should force the contacts to be mechanically disconnected, and even if the two contacts are welded together, they should be mechanically disconnected. Currently, many escalator manufacturers use safety switches to achieve this, but many directly use the normally open contacts of safety switches for the sake of convenience and economy. Currently, the normally open contacts of safety switches do not have the characteristics of forced disconnection, which poses certain risks. Utility Model Content

[0003] The present disclosure provides an escalator floor plate detection safety device to solve one of the technical problems recognized by the inventor.

[0004] The present invention provides an escalator floor plate detection safety device, comprising: a mounting base plate, a rotating trigger member, a tension spring and a safety switch, wherein the safety switch is arranged at the bottom of the mounting base plate, the rotating trigger member is rotatably connected to the mounting base plate, one end of the rotating trigger member is arranged to abut against the safety switch, and the other end extends to the outside of the mounting base plate, one end of the tension spring is connected to the rotating trigger member, and the other end is connected to the mounting base plate.

[0005] Preferably, the rotary trigger member includes a connecting rod and a switch rod, one end of the connecting rod and the switch rod are connected to form a "7" shape structure, one end of the connecting rod is fixedly connected to a top column, one end of the switch rod is set against the safety switch, and a rotary mounting hole is provided at the connection between the connecting rod and the switch rod, and a mounting fixing shaft is provided at a position of the mounting base plate corresponding to the rotary mounting hole, and the rotary mounting hole is sleeved in the mounting fixing shaft.

[0006] Preferably, a second hanging hole is provided in the middle of the switch rod, a first hanging hole is fixedly connected to the mounting base plate, and both ends of the tension spring are respectively connected to the first hanging hole and the second hanging hole.

[0007] Preferably, a step is integrally formed at the bottom of the mounting and fixing shaft, and the diameter of the step is larger than the diameter of the rotating mounting hole.

[0008] Preferably, a mounting ring is provided on the upper portion of the mounting and fixing shaft, and a snap ring is embedded in the mounting ring.

[0009] Preferably, a stopper is fixedly connected to one end of the mounting base plate close to the connecting rod, and the stopper is arranged to abut against the connecting rod.

[0010] Preferably, a plurality of fixing threaded holes are provided at the bottom of the mounting base plate, and the safety switch is fixed by screwing screws through the fixing threaded holes.

[0011] The beneficial effects of the present disclosure are mainly that: the utility model ensures the use of the normally closed contacts of the safety switch, and at the same time the normally closed contacts have the characteristic of forced disconnection. Under the forced pulling force of the tension spring, the normally closed contacts of the safety switch can be guaranteed to be disconnected, so as to improve the effectiveness of the escalator safety device and prevent the situation where the ordinary safety switch contacts cannot be disconnected due to adhesion.

[0012] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. At the same time, the specification and the drawings are used to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a schematic diagram of the structure of a safety detection device according to an embodiment of the present disclosure;

[0015] Figure 2 This is a schematic diagram of the front structure of the installation base plate of the embodiment of the present disclosure;

[0016] Figure 3 It is a schematic diagram of the side structure of the installation base plate of the embodiment of the present disclosure;

[0017] Figure 4 It is a schematic diagram of the structure of the rotation trigger member according to an embodiment of the present disclosure;

[0018] Icons: 1-installation base plate; 11-fixed threaded hole; 12-installation fixed shaft; 121-step; 122-installation ring; 13-first hanging hole; 14-stopper; 2-rotation trigger; 21-connecting rod; 22-switch rod; 23-top column; 24-rotation mounting hole; 25-second hanging hole; 3-safety switch; 4-tension spring; 5-circlip. DETAILED DESCRIPTION

[0019] The technical solution of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0020] Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present disclosure.

[0021] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0023] Example

[0024] like Figure 1-4 As shown, this embodiment provides an escalator floor plate detection safety device, including a mounting base plate 1, a rotating trigger member 2, a tension spring 4 and a safety switch 3. A plurality of fixing threaded holes 11 are opened at the bottom of the mounting base plate 1. The mounting switch is fixed by screwing screws into the fixing threaded holes 11, so that the safety switch 3 is fixed to the bottom of the mounting base plate 1. The rotating trigger member 2 is rotatably connected to the mounting base plate 1, one end of the rotating trigger member 2 is set against the safety switch 3, and the other end extends to the outside of the mounting base plate 1. One end of the tension spring 4 is connected to the rotating trigger member 2, and the other end is connected to the mounting base plate 1.

[0025] Specifically, the rotary trigger member 2 includes an integrally formed connecting rod 21 and a switch rod 22, and one end of the connecting rod 21 and the switch rod 22 are connected to form a plate structure with a "7"-shaped cross-section, and a top column 23 is provided at one end of the connecting rod 21, and one end of the switch rod 22 is set against the normally closed contact of the safety switch 3. A rotary mounting hole 24 is provided at the connection between the connecting rod 21 and the switch rod 22, and a mounting fixing shaft 12 is integrally formed at a position of the mounting base plate 1 corresponding to the rotary mounting hole 24, and the rotary mounting hole 24 is sleeved in the mounting fixing shaft 12, and the mounting fixing shaft 12 is a cylindrical structure. By sleeved the rotary mounting hole 24 in the mounting fixing shaft 12, the rotary trigger member 2 can rotate around the mounting fixing shaft 12 as the axis.

[0026] The middle of the switch rod 22 is provided with a second hanging hole 25, the mounting base 1 is fixedly connected with a first hanging hole, and the two ends of the tension spring 4 are respectively connected with the first hanging hole 13 and the second hanging hole 25. Through the tension of the tension spring 4, when the escalator floor panel is opened, the top column 23 loses pressure, and the tension spring 4 pulls the switch rod 22 to rotate, so that the switch rod 22 contacts the normally closed contact of the safety switch 3, disconnects the normally closed contact of the safety switch 3, and cuts off the safety circuit of the escalator.

[0027] Furthermore, a step 121 is integrally formed at the bottom of the mounting fixing shaft 12, and the diameter of the step 121 is larger than the diameter of the rotating mounting hole 24. The step 121 prevents the rotating trigger member 2 from contacting the mounting base plate 1, thereby causing a jam, causing the rotating trigger member 2 to be unable to rotate smoothly.

[0028] Furthermore, a mounting ring 122 is provided on the upper portion of the mounting and fixing shaft 12, and a snap ring 5 is embedded in the mounting ring 122. The snap ring 5 limits the movement of the rotation trigger member 2 to prevent the rotation trigger member 2 from being separated from the mounting and fixing shaft 12.

[0029] Furthermore, a stopper 14 is fixedly connected to one end of the mounting base plate 1 close to the connecting rod 21, and the stopper 14 is arranged to abut against the connecting rod 21. The stopper 14 limits the rotation stroke of the connecting rod 21 to avoid excessive movement.

[0030] The working principle of the utility model is as follows: when the escalator floor plate is lowered, the floor plate will press the spherical surface of the top column 23 of the rotating trigger member 2, so that the rotating trigger member 2 rotates around the fixed installation axis, stretching the tension spring 4, so that the switch rod 22 of the rotating trigger member 2 releases the safety switch 3, and the normally closed contact of the safety switch 3 is closed, connecting the escalator safety circuit; when the escalator floor plate is opened, the top column 23 of the rotating trigger member 2 is not pressed, and the rotating trigger member 2 is under the tension of the tension spring 4, so that the switch rod 22 of the rotating trigger member 2 presses the safety switch 3, so that the normally closed contact of the safety switch 3 is disconnected, and the safety circuit of the escalator is cut off. The tension spring 4 of the device mainly applies pressure to the safety switch 3 through the rotating trigger member 2 to trigger the action of the safety switch 3; the safety switch 3 is mainly used to connect the safety circuit of the escalator, and its normally closed contact has the function of forced disconnection.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. An escalator floor plate detection safety device, characterized in that: include: A mounting base plate, a rotating trigger member, a tension spring and a safety switch, wherein the safety switch is arranged at the bottom of the mounting base plate, the rotating trigger member is rotatably connected to the mounting base plate, one end of the rotating trigger member is arranged to abut against the safety switch, and the other end extends to the outside of the mounting base plate, one end of the tension spring is connected to the rotating trigger member, and the other end is connected to the mounting base plate.

2. The escalator floor plate detection safety device according to claim 1, characterized in that: The rotary trigger component includes a connecting rod and a switch rod, one end of the connecting rod and the switch rod are connected to form a "7" shape structure, one end of the connecting rod is fixedly connected to a top column, one end of the switch rod is set against the safety switch, and a rotary mounting hole is set at the connection between the connecting rod and the switch rod, and a mounting fixing shaft is set at a position of the mounting base plate corresponding to the rotary mounting hole, and the rotary mounting hole is sleeved in the mounting fixing shaft.

3. The escalator floor plate detection safety device according to claim 2, characterized in that: A second hanging hole is provided in the middle of the switch rod, a first hanging hole is fixedly connected to the mounting base plate, and two ends of the tension spring are respectively connected to the first hanging hole and the second hanging hole.

4. The escalator floor plate detection safety device according to claim 2, characterized in that: A step is integrally formed at the bottom of the mounting and fixing shaft, and the diameter of the step is larger than the diameter of the rotating mounting hole.

5. The escalator floor plate detection safety device according to claim 2, characterized in that: A mounting ring is provided on the upper portion of the mounting and fixing shaft, and a snap ring is embedded in the mounting ring.

6. The escalator floor plate detection safety device according to claim 2, characterized in that: A stopper is fixedly connected to one end of the mounting base plate close to the connecting rod, and the stopper is arranged to abut against the connecting rod.

7. The escalator floor plate detection safety device according to claim 1, characterized in that: A plurality of fixing threaded holes are provided at the bottom of the mounting base plate, and the safety switch is fixed by screwing screws into the fixing threaded holes.

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