CN214087269U - Step locking safety protection device and escalator or moving sidewalk - Google Patents

Abstract

The utility model relates to a step shutting safety device and automatic escalator or moving walk, include: the mounting seat is used for being assembled and fixed on the lower chain wheel supporting section bar; the trigger travel switch is arranged on the mounting seat; the locking execution assembly comprises a locking execution part which is detachably arranged on the mounting seat, and when the locking execution part is arranged on the mounting seat, the locking execution part triggers the travel switch to be closed, so that the electric system normally operates; when the locking executing part is hooked on the front shaft of the step, the trigger travel switch automatically resets, and the electric system is closed. Through the step shutting safety device of this scheme of installation, the rotational degree of freedom of fundamentally restraint step when needing to overhaul the maintenance operation prevents the unexpected upset of step to effectively eliminate the step upset and probably to the striking that maintainer caused, cut the personal accident injury that scratches and rub and bring, reduce safe risk and hidden danger to minimum.

Description

Step locking safety protection device and escalator or moving sidewalk

Technical Field

The utility model relates to an automatic escalator or moving walk technical field especially relate to a step shutting safety device and automatic escalator or moving walk.

Background

At present, with the rapid advance of urbanization steps, large-scale building structures, such as malls, supermarkets, cinemas, libraries, science and technology halls, emerge around the country as spring shoots after rain, and special areas in the building structures are usually provided with escalators or moving sidewalks, so that people can automatically shuttle between two different places with different potential differences or large spans.

With the increasing carrying capacity of escalators or moving walkways, in order to ensure daily safe and reliable operation, regular daily maintenance becomes a very necessary and increasingly frequent operation content. When maintenance is performed, it is necessary to cut off the power source of the escalator or moving sidewalk, for example, to cut off the power source of the motor, and temporarily stop the operation of the steps. However, in actual work, even after the power supply of the motor is cut off, some steps are also overturned due to the inertia effect, so that the problems of impact or scratch of maintainers and personal injury are caused, a large potential safety hazard exists, and the difficulty in maintenance and repair is increased.

SUMMERY OF THE UTILITY MODEL

Therefore, a step locking safety protection device and an escalator or a moving sidewalk are needed to be provided, and the problem of potential safety hazards of personal injury caused by accidental overturning of the steps in the prior art is solved.

In one aspect, the present application provides a step lockout safety guard comprising:

a mounting seat for assembly and fixation to a lower sprocket support profile;

the trigger travel switch is arranged on the mounting seat; and

the locking executing assembly comprises a locking executing part which is detachably arranged on the mounting seat, and when the locking executing part is mounted on the mounting seat, the locking executing part closes the trigger travel switch, so that the electric system operates normally; when the locking executing part is hooked on the front shaft of the step, the trigger travel switch automatically resets, and the electric system is closed.

The step locking safety protection device is applied to an escalator or a moving sidewalk and is mainly used for reliably restricting the degree of freedom of the steps and thoroughly eliminating potential safety hazards when the escalator or the moving sidewalk needs to be shut down, overhauled and maintained. Specifically, when the escalator or the moving sidewalk normally runs, the locking executing part of the locking executing component is installed on the installation seat at this time, and the locking executing part is in contact with the trigger travel switch at this time, so that the trigger travel switch is kept in a closed state, an electric system is further switched on, the motor is electrified to normally run, and the step is normally driven to rotate. When the maintenance operation is required, a maintainer enters a lower machine room and manually takes the locking executing part from the mounting seat and hangs the locking executing part on the front shaft of the step, so that the locking executing part can mechanically restrict the rotational freedom degree of the front shaft of the step and force the step not to be accidentally turned; meanwhile, the locking executing part is separated from the contact triggering travel switch after being taken away, the triggering travel switch can be automatically reset and disconnected, the electrical system is synchronously disconnected, the motor is powered off and cannot be normally started, the step loses a power source, and the step cannot be accidentally turned over. So far, through the step shutting safety device of this scheme of installation, fundamentally retrains the rotational degree of freedom of step when needing to overhaul the maintenance operation, prevents the unexpected upset of step to effectively eliminate the step upset probably to the striking that maintainer caused, cut the personal accident injury that the rubbing brought, reduce safety risk and hidden danger to minimum.

The technical solution of the present application is further described below:

in one embodiment, the mounting seat is provided with a hanging hole, the locking executing part is provided as a hook, the hook can be hung in the hanging hole, and at the moment, the contact head part of the hook is abutted to the trigger travel switch.

In one embodiment, the hook comprises a hook body, a rotating shaft pin, a torsion spring and a sealing plate, wherein the rotating shaft pin is arranged on one side of the opening of the hook body, the sealing plate is arranged on the rotating shaft pin in a rotating mode through the torsion spring, and the sealing plate can close or open the opening of the hook body.

In one embodiment, the mounting seat is provided with an adjusting hole, a fastening connecting piece is inserted in the adjusting hole, and the fastening connecting piece can be locked and fixed with the lower chain wheel supporting profile.

In one embodiment, the adjusting holes are arranged as long slotted holes; the fastening connecting piece is a fastening bolt, and the fastening bolt can be slidably arranged in the long slotted hole and can be screwed on the lower chain wheel supporting section bar.

In one embodiment, the step locking installation protection device further comprises a fixed seat and a fixed part, the fixed seat is arranged on the installation seat through the fixed part, and the trigger travel switch is arranged on the fixed seat.

In one embodiment, the locking actuating assembly further comprises a connecting piece, one end of the connecting piece is arranged on the mounting seat, and the other end of the connecting piece is connected with the locking actuating piece.

In one embodiment, the locking execution assembly further comprises a rotating connection column, the rotating connection column is rotatably arranged on the mounting seat, and one end, far away from the locking execution member, of the connecting member is connected with the rotating connection column.

In one embodiment, the locking execution assembly further comprises a bolt, the mounting seat is provided with a through hole, the rotating connection column is arranged through the through hole, one end of the rotating connection column penetrating through the through hole is provided with a jack extending radially in a penetrating manner, and the bolt is inserted into the jack and is in limit fit with the mounting seat.

In another aspect, the present application also provides an escalator or moving walkway including a step locking safety guard as described above.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

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

Fig. 1 is a schematic structural view of a step locking safety device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the middle step locking safety device in an installation and use state;

fig. 3 is a schematic structural diagram of fig. 2 from another view angle.

Description of reference numerals:

10. a mounting seat; 11. hanging holes; 12. a long slot hole; 20. a lower sprocket support profile; 30. triggering a travel switch; 40. a lock execution assembly; 41. a locking actuator; 42. a connecting member; 43. rotating the connecting column; 44. a bolt; 50. fastening a bolt; 60. a fixed seat; 70. a fixing member; 80. step front axle.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

The embodiment of the application provides an escalator or a moving sidewalk, which is used for automatically conveying pedestrians between two fixedly arranged places so as to overcome complex terrain obstacles, avoid the pedestrians from walking and reduce physical loss of the pedestrians.

The escalator is a fixed electric driving device which is formed by combining a chain conveyor with a special structure form and two belt conveyors with a special structure form, is provided with a circulating movement ladder way and is used for conveying passengers upwards or downwards at different story heights of a building. Specifically, it may be a continuous transport machine having a walk-substituting property in which a carrier moves up and down. The escalator consists of a ladder way and handrails at two sides. The main components of the device comprise steps, a traction chain and a chain wheel, a guide rail system, a main transmission system (comprising a motor, a speed reducer, a brake, an intermediate transmission link and the like), a driving main shaft, a ladder way tensioning device, a handrail system, a comb plate, a ladder framework, an electric system and the like. The stairs horizontally move at the entrance of the passenger so as to facilitate the passenger to climb the stairs and gradually form the stairs later; the steps gradually disappear near the exit, and the steps move horizontally again so as to facilitate passengers to get off the stairs.

The moving walkway, in turn, refers to a fixed electrically driven installation with a circulating (plate or belt) walkway for transporting passengers with a horizontal or inclined angle not greater than 12 °. The structure of the escalator is similar to that of an escalator and mainly comprises a moving pavement and a handrail. The moving sidewalk is suitable for places with concentrated pedestrian streams, such as stations, docks, shopping malls, airports, exhibition halls, sports halls and the like. The step-like shape is not formed even when the movable road surface is inclined.

The main bearing frameworks of the moving sidewalk or the escalator are trusses. It is easy to understand that the truss is usually a steel skeleton structure formed by welding or assembling steel members and is used for being installed in a construction site so as to bear a main transmission system, a guide rail system and the like.

For some large span applications, the length of the truss needs to be designed to be correspondingly long. However, due to the limitations of installation and transportation, the steel members constituting the truss cannot be made into a long whole, and at this time, a sectional design is required. The split truss structure has the advantages that an original integral truss is manufactured into the split truss which is short in length and small in size and the corresponding connection structure, the split truss is assembled and connected into the integral truss through the connection structure, accordingly, the use requirements are met, meanwhile, the assembly and connection are facilitated, and the structural strength is high.

In buildings such as markets, supermarkets and the like, a machine room is usually reserved below the used escalator or moving sidewalk, so that maintenance personnel can carry out maintenance and maintenance work on the escalator or moving sidewalk regularly. However, due to the fact that the space of the civil engineering hoistway is insufficient, the space in the lower machine room is usually only enough for normal adults to stand, after maintenance personnel enter the lower machine room, the distance between limbs and the step of lower overturning is small, and at the moment, if the step is accidentally overturned, the step is very easy to scratch and rub with the maintenance personnel, and safety accidents are caused. The escalator or moving sidewalk step locking safety protection device can reliably restrain the steps when the escalator or moving sidewalk needs to be overhauled, maintained and protected, and prevents the steps from being turned over accidentally to cause accidental injury to maintainers.

As shown in fig. 1, a step lockout safety guard is shown for one embodiment of the present application, the step lockout safety guard comprising: mount 10, trigger travel switch 30, and latch actuation assembly 40. The mounting seat 10 is a bearing body of the step locking safety device, and is used for loading the fixed trigger travel switch 30 and the locking execution assembly 40. For example, in the present embodiment, the mounting base 10 is directly made of an angle steel structure, and has high structural strength, easy availability, convenient processing, and low use cost. Of course, in other embodiments, the mounting seat 10 may also be made of i-steel, square steel, channel steel, or the like, which may be specifically selected according to actual needs.

The trigger travel switch 30 belongs to a position switch (also called a limit switch), and is a common low-current master control electrical appliance. The contact of the mechanical motion part is operated by the collision to realize the connection or disconnection of the control circuit, thereby achieving a certain control purpose. Generally, such switches are used to limit the position or stroke of the movement of the machine, so that the moving machine can automatically stop, move in reverse, shift or automatically move back and forth according to a certain position or stroke.

The latch actuation assembly 40, as the name implies, is a restraining assembly for directly restraining the steps. The locking device has two working states of locking and unlocking the step front shaft 80, and the power for switching the locking execution assembly 40 between the different working states can be from manual power or automatic equipment. In terms of cost and operability, the switching of the operation state of the latch actuation assembly 40 in the present embodiment is preferably performed manually by a service worker.

With continued reference to fig. 2 and 3, specifically, the mounting seat 10 is adapted to be assembled and secured to the lower sprocket support profile 20; the trigger travel switch 30 is arranged on the mounting base 10; the locking actuating assembly 40 comprises a locking actuating member 41, the locking actuating member 41 is detachably arranged on the mounting seat 10, and when the locking actuating member 41 is mounted on the mounting seat 10, the locking actuating member 41 closes the trigger travel switch 30, and the electrical system operates normally; after the escalator or the moving sidewalk is normally stopped, when the locking executing part 41 is hooked on the step front shaft 80, the trigger travel switch 30 automatically resets, and the electrical system is completely ensured to be closed.

In summary, the implementation of the technical solution of the present embodiment has the following beneficial effects: the step locking safety protection device is applied to an escalator or a moving sidewalk and is mainly used for reliably restricting the degree of freedom of the steps and thoroughly eliminating potential safety hazards when the escalator or the moving sidewalk needs to be shut down, overhauled and maintained. Specifically, when the escalator or moving walkway is running normally, the locking actuator 41 of the locking actuator assembly 40 is mounted on the mounting base 10, and the locking actuator 41 contacts the trigger travel switch 30 to keep the trigger travel switch 30 in a closed state, so that the electrical system is switched on, the motor is powered on to run normally, and the steps are driven to rotate normally. However, when the maintenance operation is required, a maintainer enters a lower machine room, manually takes the locking actuating member 41 from the mounting seat 10 and hangs the locking actuating member on the front stair shaft 80, so that the locking actuating member 41 can mechanically restrict the rotational freedom degree of the front stair shaft 80 and force the stair not to be accidentally turned; meanwhile, the locking executing part 41 is separated from the contact triggering travel switch 30 after being taken away, the triggering travel switch 30 can be automatically reset and disconnected, the electrical system is synchronously disconnected, the motor is powered off and cannot be normally started, the step loses a power source, and the step cannot be accidentally turned over. So far, through the step shutting safety device of this scheme of installation, fundamentally retrains the rotational degree of freedom of step when needing to overhaul the maintenance operation, prevents the unexpected upset of step to effectively eliminate the step upset probably to the striking that maintainer caused, cut the personal accident injury that the rubbing brought, reduce safety risk and hidden danger to minimum.

Referring to fig. 1, in some embodiments, the mounting base 10 is provided with a hanging hole 11. The hanging hole 11 can be any one of a circular hole, a slotted hole, a square hole, a triangular hole, a trapezoidal hole, a special-shaped hole and the like; in order to ensure that the locking actuator 41 is hung on the mounting seat, stable and free from shaking, and the travel switch 30 is always kept pressed, the hanging hole 11 in this embodiment is preferably a special-shaped hole according to the shape of the locking actuator 41. The locking actuator 41 is a hook which can be hung in the hanging hole 11, and at this time, the contact head of the hook abuts against the trigger travel switch 30. The hook is hung in the hanging hole 11, so that the installation stability can be ensured, no extra noise is generated by shaking, loosening and accidental dropping are not easy to occur, and the installation mode has a simple structure and convenient assembly and disassembly operation.

And when the hook is hung in the hanging hole 11, the hook freely droops by the gravity of the hook, at the moment, the contact head part of the hook can be directly abutted against the trigger travel switch 30 to force the trigger travel switch 30 to be switched on, and the trigger travel switch 30 switches on an electric appliance system of the escalator or the moving sidewalk to form a closed loop circuit, so that the motor is normally started to drive the step to normally run. The circuit is simple in triggering and connecting mode and structure, strong in implementability, free of triggering the trigger travel switch 30 by means of extra power equipment, and beneficial to reducing the working cost.

It should be noted that, in order to facilitate the hook to be hooked into the hanging hole 11 or to be released from the hanging hole 11, the cross-sectional size of the hanging hole 11 should be designed to be slightly larger than the cross-sectional size of the hook.

Further, the couple includes hook body, pivot round pin, torsional spring and shrouding, the pivot round pin set up in the opening one side of hook body, the shrouding passes through the torsional spring rotate set up in on the pivot round pin, just the shrouding can seal or open the opening of hook body. After the hook is hung on the step front shaft 80, the turning of the step is restrained, and meanwhile, the larger pulling acting force is bound to be exerted, the opening of the hook body is reliably sealed by the sealing plate under the action of the elastic torsion of the torsion spring, so that the step front shaft 80 is blocked by the sealing plate and cannot be separated from the hook body, and the hook is guaranteed to be hung on the step front shaft 80 reliably.

Furthermore, in some embodiments, the mounting seat 10 defines an adjustment hole, and a fastening connector is inserted into the adjustment hole and can be locked and fixed with the lower sprocket support profile 20. Therefore, the mounting position of the mounting seat 10 can be flexibly adjusted according to actual needs, escalators with different specifications and sizes and moving sidewalks, and the length requirement of the hanging hook for hanging the step front shaft 80 is met.

With continued reference to fig. 1, in particular, the adjustment holes are configured as slotted holes 12; the fastening connecting piece is provided as a fastening bolt 50, and the fastening bolt 50 can be slidably arranged through the long slot hole 12 and can be screwed on the lower chain wheel supporting section bar 20. The elongated slot 12 provides a sliding path for the fastening bolt 50, and when the position of the mounting seat 10 is adjusted, the fastening bolt 50 is tightened to fix the entire step locking safety device. The scheme has the advantages of simple structure, strong operability and convenient and labor-saving operation.

Referring to fig. 1, in other embodiments, the step locking installation protection device further includes a fixing seat 60 and a fixing member 70, the fixing seat 60 is disposed on the installation seat 10 through the fixing member 70, the trigger travel switch 30 is disposed on the fixing seat 60, and an oblong hole is formed in the fixing seat 60 to facilitate adjusting an installation position of the travel switch 30 and ensure that a contact thereof is below a hanging hole (a special-shaped hole) of the installation seat 10. The trigger switch 30 can be indirectly and stably assembled and fixed to the mounting seat 10 through the fixing seat 60.

For example, the fixing member 70 is a screw, and the fixing base 60 is fixed below the mounting base 10 by screw locking.

With reference to fig. 1 and fig. 2, the locking actuator assembly 40 further includes a connecting member 42, one end of the connecting member 42 is disposed on the mounting base 10, and the other end of the connecting member 42 is connected to the locking actuator 41. The link 42 has a length that provides the hook with sufficient travel to smoothly hook the hook to the far step front axle 80.

Optionally, in this embodiment, the connecting member 42 is a steel wire rope, which has high structural strength, low use cost and high reliability. Of course, in other embodiments, the connecting member 42 may also be other components such as a chain, a nylon rope, etc., and may be selected according to actual needs.

With continuing reference to fig. 1 and fig. 3, further, the locking actuator 40 further includes a rotation connection post 43, the rotation connection post 43 is rotatably disposed on the mounting base 10, and an end of the connection member 42 away from the locking actuator 41 is connected to the rotation connection post 43. The locking executing assembly 40 further comprises a bolt 44, a through hole is formed in the mounting seat 10, the rotating connecting column 43 penetrates through the through hole, a jack which radially penetrates through the through hole is formed in one end of the rotating connecting column 43, and the bolt 44 is inserted into the jack and is in limit fit with the mounting seat 10.

The connecting piece 42 is indirectly connected with the mounting base 10 through the rotating connecting column 43, the rotating connecting column 43 provides a rotating degree of freedom at the moment, the connecting piece 42 can rotate and change direction, the step front shaft 80 at different positions can be conveniently hung, the mounting difficulty is reduced, and the use convenience of the step locking safety protection device is improved.

The pin 44 is connected with the jack, so that the rotating connecting column 43 can be firmly assembled and fixed on the mounting seat 10.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. A step lockout safety guard, comprising:

a mounting seat for assembly and fixation to a lower sprocket support profile;

the trigger travel switch is arranged on the mounting seat; and

the locking executing assembly comprises a locking executing part which is detachably arranged on the mounting seat, and when the locking executing part is mounted on the mounting seat, the locking executing part closes the trigger travel switch, so that the electric system operates normally; when the locking executing part is hooked on the front shaft of the step, the trigger travel switch automatically resets, and the electric system is closed.

2. The step locking safety device of claim 1, wherein the mounting base defines a hanging hole, the locking actuator is configured as a hook, the hook is capable of being hung in the hanging hole, and a contact head of the hook abuts against the trigger travel switch.

3. The step locking safety guard of claim 2, wherein the hook comprises a hook body, a pivot pin, a torsion spring, and a sealing plate, the pivot pin is disposed at one side of the opening of the hook body, the sealing plate is rotatably disposed on the pivot pin via the torsion spring, and the sealing plate can close or open the opening of the hook body.

4. The step locking safety guard of claim 1, wherein the mounting base defines an adjustment aperture, and a fastening connection is inserted into the adjustment aperture and is configured to be locked and secured to the lower sprocket support profile.

5. The step lockout safety guard of claim 4, wherein the adjustment aperture is provided as a slotted aperture; the fastening connecting piece is a fastening bolt, and the fastening bolt can be slidably arranged in the long slotted hole and can be screwed on the lower chain wheel supporting section bar.

6. The step locking safety guard of claim 1, further comprising a fixed seat and a fixed member, the fixed seat disposed on the mounting seat via the fixed member, the trigger travel switch disposed on the fixed seat.

7. The step locking safety guard of any one of claims 1 to 6 wherein the locking actuation assembly further comprises a connector, one end of the connector being disposed on the mounting seat and the other end of the connector being connected to the locking actuation member.

8. The step lockout safety guard of claim 7, wherein the lockout actuator assembly further comprises a pivot connection post rotatably disposed on the mount, an end of the connector remote from the lockout actuator being connected to the pivot connection post.

9. The step locking safety device of claim 8, wherein the locking actuator further comprises a pin, the mounting base defines a through hole, the rotation connection post is disposed through the through hole, and a radially extending through-hole is defined at an end of the rotation connection post that passes through the through hole, and the pin is inserted into the through hole and is in limit fit with the mounting base.

10. An escalator or moving walkway, comprising a step locking safety guard according to any of claims 1 to 9.

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