CN215666535U - Lever type anti-pinch escalator - Google Patents
Lever type anti-pinch escalator Download PDFInfo
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- CN215666535U CN215666535U CN202121851911.7U CN202121851911U CN215666535U CN 215666535 U CN215666535 U CN 215666535U CN 202121851911 U CN202121851911 U CN 202121851911U CN 215666535 U CN215666535 U CN 215666535U
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- escalator
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Abstract
The utility model discloses a lever type anti-pinch escalator, and aims to overcome the defect that the traditional anti-pinch escalator is not sensitive enough in triggering. The utility model discloses a be equipped with anti-pinch device on the apron board, anti-pinch device sets up in the brush below of staircase, anti-pinch device is for triggering the lever, and the one end fixed connection that triggers the lever forms the stiff end on the apron board, and the other end that triggers the lever is the free end, and the apron board corresponds free end position fixedly connected with safety switch, free end elastic connection safety switch. The novel anti-pinch device is larger in trigger area and higher in sensitivity, and the triggering of the safety switch cannot cause irreversible damage to the escalator.
Description
Technical Field
The utility model relates to an escalator protection device, in particular to a lever type anti-pinch escalator.
Background
The staircase saves the consumption of people moving between floors and improves the life of people. With the increasing wide application of escalators, the safety is also increasingly emphasized by people. There is a certain gap between the skirt panel and the steps of the escalator, and when the escalator is normally operated, it may occur that foreign materials enter the gap between the skirt panel and the steps, thereby causing a dangerous situation to occur. Most of the existing escalator anti-pinch devices trigger a safety switch by utilizing the deformation of an apron plate arranged between steps, and the national standard has strict requirements on the deformation of the stressed apron plate, so that the problem of insensitive triggering exists, and safety accidents are easily caused.
The utility model is therefore based on the object of providing an anti-jamming escalator which is sensitive to triggering and does not require irreversible triggering which damages the escalator.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defect that the triggering of the existing anti-pinch staircase is not sensitive enough, and provides a lever type anti-pinch staircase which not only continues to use a safety switch defined by national standards, but also realizes the enlargement of a triggering area, improves the triggering sensitivity and protects the safety of passengers to the maximum extent.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the lever type anti-pinch staircase is characterized in that an anti-pinch device is arranged on a skirt panel of the staircase, the anti-pinch device is a trigger lever, one end of the trigger lever is fixedly connected to the skirt panel to form a fixed end, the other end of the trigger lever is a free end, a safety switch is fixedly connected to the position, corresponding to the free end, of the skirt panel, and the free end is elastically connected with the safety switch.
Anti-pinch device sets up on the apron board, invades between step and the apron board when foreign matter such as people's finger, will the butt trigger lever, and the trigger lever is for the lever of wasting energy, because the invasion thing receives the effect of step, can exert pressure to the trigger lever, and pressure can receive leverage to feed back the safety switch that the free end of trigger lever corresponds, realizes shutting down through triggering safety switch, reduces the injury to the passenger, takes out the invasion thing for the staff provides time. Compared with the traditional mode that the skirt panel deforms due to the pressure on the skirt panel, the mode that the skirt panel is abutted to and triggers the safety switch is more sensitive. Because the safety switch can not be arranged behind the skirt guard panel at each position, the displacement caused by deformation of the skirt guard panel is positively correlated with the position triggered by the clamp, when the clamped position is far away from the safety switch, the deformation can not be generated completely, so that the triggering area is limited, meanwhile, due to the requirement of national standards on the skirt guard panel, the pressure for causing deformation of the skirt guard panel can be huge, the problem of insensitive triggering can be caused, and when the triggering requirement is reached, passengers can have received serious injury. Above-mentioned problem has been solved completely to this application, through the structure of lever, can will receive the complete transfer of kinetic energy that the clamp caused to the free end position of triggering the lever, the free end removes and realizes triggering safety switch. The triggering area of the structure is large, the coverage area is obviously improved, the triggering is more sensitive, the damage to the escalator cannot be caused, the normal work can be recovered by restarting, and the maintenance time and the maintenance cost are reduced. Because the fulcrum of the trigger lever is positioned on the fixed end, the whole section of the trigger lever is a labor-consuming lever, the force required when the safety switch is to be triggered close to the free end position is small, the displacement is large, the force required when the safety switch is far away from the free end is large, the displacement is small, the trigger close to the free end position needs a certain depth, the mistaken touch can be avoided, and the trigger far away from the free end position needs a certain force, and the mistaken touch can also be avoided.
Preferably, the apron plate is provided with a positioning slot adaptive to the trigger lever, and the surface of the apron plate is flush with the surface of the trigger lever. The positioning slot accommodates the trigger lever. The structure has improved the pleasing to the eye of staircase, can avoid the protrusion to cause the foreign object butt, causes the mistake to touch.
Preferably, the corresponding fixed end position of the apron plate is fixedly connected with a fixed pressure plate through a fastener, and the fixed pressure plate is pressed on the trigger lever. The fixed end of the apron plate is fixedly connected with the apron plate, and the triggering of the triggering lever needs to overcome the self elasticity. The trigger lever is also fixed through the fixed pressing plate.
Preferably, the safety switch is arranged on the side of the skirt guard panel away from the steps of the escalator.
Preferably, reinforcing ribs are arranged on two sides of the trigger lever of the skirt panel, a mounting support is fixedly connected to the reinforcing ribs, the safety switch is mounted on the mounting support, an adjusting bolt is connected to the mounting support through threads, a locking nut for positioning the adjusting bolt and a limiting nut fixedly connected to the adjusting bolt are arranged on the adjusting bolt, and an adjusting spring is abutted between the limiting nut and the trigger lever. The safety switch is installed on the mounting bracket, and the mounting bracket is also provided with an adjusting spring and a device for adjusting the adjusting spring, namely an adjusting bolt, a locking bolt and a limiting bolt. The structure plays the effect of adjustment pinch-proof plate sensitivity, through adjustment adjusting bolt's position, can change adjusting spring's elasticity size, changes the frictional force that triggers needs. The locking nut is used for limiting the adjusting bolt, and looseness caused by vibration is avoided.
Preferably, the two sides of the trigger lever are thin and the middle of the trigger lever is thick, a step is arranged at the position, close to the outer edge, of the trigger lever, and the step is adapted to the positioning groove. The structure is for better and apron board parallel and level setting, and location fluting and step adaptation can be better carry on spacingly to triggering the lever, avoid producing the clearance between apron board and the triggering lever, lead to dust or other foreign object to invade.
Preferably, the anti-pinch device is arranged at the transition position between the horizontal section and the inclined section of the escalator. Since the position is a position where a height change occurs between steps, an accident in which people are caught by the escalator is mostly occurred here. Such accidents can be greatly reduced by providing an anti-pinch device at this location.
Preferably, the anti-pinch device is arranged below a brush of the escalator. The device is more hidden at the position and is also a region where people are trapped.
Preferably, the anti-pinch device is provided with a proximity switch and a light emitter, and the proximity switch scans the step and controls the light emitter to emit light through the controller. The steps sweep across the proximity switch at a frequency. When the gap between the apron board and the step is increased along with the operation time or the accident and exceeds the sensing distance set by the proximity switch, the control unit controls the light emitter to emit light, flicker or change the light emitting color, so that the passenger is prompted to have overlarge size gap and potential safety hazard, and meanwhile, the worker is prompted to maintain in time and adjust the gap to a reasonable size.
Preferably, the free end is provided with an anti-false-touch box corresponding to the position of the safety switch, the anti-false-touch box comprises a box body with an open top and oppositely arranged wedge blocks, the wedge surface of each wedge block is attached to a contact of the safety switch, the wedge blocks are connected into the box body through damping elastic pieces, the anti-false-touch box and the trigger lever are made of metal materials, the wedge blocks are made of non-conductor materials, the contacts push the wedge blocks open and abut against the bottom of the anti-false-touch box to form a passage, and the safety switch controls the elevator to stop. The structure is used for solving the problem of false touch. The conventional false touch phenomenon is mainly short-time touch knocking. The principle of preventing mistake of this structure is: when the contact is in short time, the false touch prevention box moves along with the trigger lever to impact the contact. The damping elastic piece is a vulcanized rubber block, has certain damping while having certain elasticity, and the wedge block which is knocked and returns quickly drives the damping elastic block to return, so that the contact cannot make the wedge block return completely in a short time, and the contact cannot contact the anti-false-touch box. And the force is applied to the trigger lever for a long time, so that the wedge block can be ensured to return, and the contact contacts the anti-false contact box to complete the access.
Preferably, the wedge surfaces of the wedge comprise a first wedge surface and a buffer surface, and a second wedge surface. The further improvement of structure prevents that the mistake is touched the effect, strikes for a short time and only can let the voussoir withdraw to buffering face contact point, and long-term exerting pressure just can let the lower buffering face of contact bank slope. The three sections of inclined planes are arranged to improve the detection sensitivity and reduce the force for arranging the wedge blocks.
Compared with the prior art, the utility model has the beneficial effects that: (1) the novel anti-pinch device has larger triggering area and higher sensitivity; (2) the triggering of the safety switch does not cause irreversible damage to the escalator.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic front view of the anti-pinch device of the present invention;
FIG. 3 is a schematic view of a back side of the anti-pinch device of the present invention;
FIG. 4 is a schematic view of the anti-pinch device of the present invention installed;
FIG. 5 is a structural view of the trigger lever of the present invention;
FIG. 6 is a schematic view of the mounting bracket of the present invention;
FIG. 7 is a schematic view of example 3;
in the figure: the device comprises a trigger lever 1, a fixed end 2, a free end 3, a safety switch 4, a positioning slot 5, a fixed pressing plate 6, a reinforcing rib 7, a mounting bracket 8, an adjusting bolt 9, a locking nut 10, a limiting nut 11, an adjusting spring 12, a step 13, a proximity switch 14, a light emitter 15, a box body 16, a wedge 17, a damping elastic piece 18, a first wedge surface 19, a buffer surface 20, a second wedge surface 21, an apron plate 22 and a contact 23.
Detailed Description
The present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.
In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.
Example 1:
a lever type anti-pinch staircase is shown in figures 1 and 2, an anti-pinch device is arranged on a skirt guard panel 22 of the staircase, and the anti-pinch device is a trigger lever 1. The apron plate 22 is provided with a positioning slot 5 adapted to the trigger lever 1, and the surface of the apron plate is flush with the surface of the trigger lever 1. The positioning slot 5 accommodates the trigger lever 1. The structure has improved the pleasing to the eye of staircase, can avoid the protrusion to cause the foreign object butt, causes the mistake to touch. As shown in fig. 3 and 4, the apron board is fixedly connected with a fixed pressing board 6 through a fastener at the position corresponding to the fixed end 2, and the fixed pressing board 6 is pressed on the trigger lever 1. The fixed end 2 of the apron plate is connected with the apron plate in a fixed mode, and the triggering of the triggering lever 1 needs to overcome the elasticity of the triggering lever. The trigger lever 1 is also fixed by a fixing pressure plate 6. The two sides of the trigger lever 1 are thin and the middle is thick, a step 13 is arranged at the position, close to the outer edge, of the trigger lever 1, and the step 13 is adapted to the positioning groove 5. The structure is for better and apron board parallel and level setting, and location fluting 5 and step 13 adaptation can be better carry on spacingly to triggering lever 1, avoid producing the clearance between apron board and the triggering lever 1, lead to dust or other foreign object to invade.
One end of the trigger lever 1 is fixedly connected with the apron plate to form a fixed end 2, the other end of the trigger lever 1 is a free end 3, and the apron plate is fixedly connected with a safety switch 4 corresponding to the position of the free end 3. The safety switch 4 is arranged on one side of the skirt guard panel, which is far away from the steps of the escalator.
The free end 3 is elastically connected with a safety switch 4. As shown in figure 6, the apron plate is provided with reinforcing ribs 7 at two sides of the trigger lever 1, and the reinforcing ribs 7 are fixedly connected with mounting brackets 8. As shown in fig. 5, the safety switch 4 is installed on the installation support 8, the installation support 8 is in threaded connection with an adjusting bolt 9, the adjusting bolt 9 is provided with a locking nut 10 for positioning the adjusting bolt 9 and a limit nut 11 fixedly connected to the adjusting bolt 9, and an adjusting spring 12 is abutted between the limit nut 11 and the trigger lever 1. The safety switch 4 is installed on the mounting bracket 8, and the mounting bracket 8 is also provided with an adjusting spring 12 and a device for adjusting the adjusting spring 12, namely an adjusting bolt 9, a locking bolt and a limiting bolt. The mounting bracket has a threaded hole in threaded connection with the adjusting bolt. The structure plays the effect of adjustment pinch-proof plate sensitivity, through the position of adjustment adjusting bolt 9, can change the elasticity size of adjusting spring 12, changes the frictional force that triggers the needs. The locking nut 10 is used for limiting the adjusting bolt 9 and avoiding looseness caused by vibration.
The anti-pinch device is arranged at the transition section position between the horizontal section and the inclined section of the escalator. Since the position is a position where a height change occurs between steps, an accident in which people are caught by the escalator is mostly occurred here. Such accidents can be greatly reduced by providing an anti-pinch device at this location. The anti-pinch device is arranged below the brush of the escalator. The device is more hidden at the position and is also a region where people are trapped.
Anti-pinch device sets up on the apron board, invades between step and the apron board when foreign matter such as people's finger, will butt trigger lever 1, and trigger lever 1 is the lever of wasting energy, because the invasion receives the effect of step, can exert pressure to trigger lever 1, and pressure can receive leverage to feed back the safety switch 4 that trigger lever 1's free end 3 corresponds, realizes shutting down through triggering safety switch 4, reduces the injury to the passenger, takes out the invasion for the staff provides time. Compared with the traditional mode that the skirt panel deforms due to the pressure on the skirt panel, the mode that the skirt panel is abutted to and triggers the safety switch 4 is more sensitive. Because the safety switch 4 cannot be arranged behind the skirt guard panel at each position, the displacement caused by deformation of the skirt guard panel is positively correlated with the position triggered by the clamp, when the clamped position is far away from the safety switch 4, the deformation can not be generated completely, so that the triggering area is limited, meanwhile, due to the requirement of national standard on the skirt guard panel, the pressure for causing deformation of the skirt guard panel can be huge, the problem of insensitive triggering can be caused, and when the triggering requirement is reached, passengers can have received serious injury. Above-mentioned problem has been solved completely to this application, through the structure of lever, can will receive the complete transfer of kinetic energy that the clamp caused to the free end 3 position of triggering lever 1, free end 3 removes and realizes triggering safety switch 4. The triggering area of the structure is large, the coverage area is obviously improved, the triggering is more sensitive, the damage to the escalator cannot be caused, the normal work can be recovered by restarting, and the maintenance time and the maintenance cost are reduced. Because the fulcrum of trigger lever 1 is on stiff end 2, consequently, whole section trigger lever 1 is the lever of wasting effort, and the power that needs is less and the displacement is great when being close to 3 positions of free end and will triggering safety switch 4, and the power that keeps away from 3 positions of free end is great and the displacement is less, needs certain degree of depth near the trigger of 3 positions of free end, can avoid the mistake to touch, and the trigger of keeping away from 3 positions of free end needs certain strength also can avoid the mistake to touch.
Example 2:
the present embodiment further includes, in addition to embodiment 1:
the anti-pinch device is provided with a proximity switch 14 and a light emitter 15, wherein the proximity switch 14 scans the steps and controls the light emitter 15 to emit light through a controller. The steps sweep across the proximity switch 14 at a certain frequency. When the gap between the apron board and the step is increased along with the operation time or accidents and exceeds the sensing distance set by the proximity switch 14, the control unit controls the light emitter 15 to emit light, twinkle or change the light emitting color, so that the situation that the size gap of a passenger is too large is prompted, the potential safety hazard is caused, and meanwhile, the staff is reminded to maintain in time and adjust the gap to a reasonable size.
Example 3:
the present embodiment further includes, in addition to embodiment 1:
as shown in fig. 7, the free end 3 is provided with a mis-touch prevention box corresponding to the position of the safety switch 4, the mis-touch prevention box comprises a box body 16 with an open top and a wedge 17 arranged oppositely, the wedge surface of the wedge 17 is attached to a contact 23 of the safety switch 4, the wedge 17 is connected in the box body 16 through a damping elastic part 18, the mis-touch prevention box and the trigger lever 1 are made of metal materials, the wedge 17 is made of a non-conductor material, the contact pushes the wedge 17 open and abuts against the bottom of the mis-touch prevention box to form a passage, and the safety switch 4 controls the elevator to stop. The structure is used for solving the problem of false touch. The conventional false touch phenomenon is mainly short-time touch knocking. The principle of preventing mistake of this structure is: when the contact is in short time, the false touch preventing box moves along with the trigger lever 1 to impact the contact. The damping elastic part 18 is a vulcanized rubber block, has certain damping while having certain elasticity, the wedge block 17 which is knocked and returns rapidly drives the damping elastic block to return, the contact cannot enable the wedge block 17 to return completely in a short time, and the contact cannot contact the anti-false-touch box. And if the trigger lever 1 is applied with force for a long time, the wedge 17 can be ensured to retreat, and the contact 23 is contacted with the anti-false contact box to complete the access. The wedge surfaces of the wedge 17 comprise a first wedge surface 19 and a relief surface 20 and a second wedge surface 21. The structure further improves the effect of preventing false touch, the short-time knocking only enables the wedge block 17 to return to the contact point 23 contacted with the buffer surface 20, and the long-time pressing only enables the contact point 23 to be arranged on the buffer surface 20 with lower slope. The three inclined planes are arranged to improve the detection sensitivity and reduce the force for removing the wedge 17.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the utility model as set forth in the appended claims.
Claims (7)
1. The lever type anti-pinch escalator is characterized in that an anti-pinch device is arranged on a skirt panel of the escalator and arranged below a hairbrush of the escalator, the anti-pinch device is a trigger lever, one end of the trigger lever is fixedly connected to the skirt panel to form a fixed end, the other end of the trigger lever is a free end, a safety switch is fixedly connected to the position, corresponding to the free end, of the skirt panel, and the free end is elastically connected with the safety switch.
2. The lever type escalator with anti-pinch function as claimed in claim 1, wherein the skirt panel is provided with a positioning slot adapted to the trigger lever, and the surface of the skirt panel is flush with the surface of the trigger lever.
3. The lever type escalator with the function of preventing pinching is as claimed in claim 1, wherein the apron board is fixedly connected with a fixed pressing board through a fastening piece corresponding to the fixed end position, and the fixed pressing board is pressed on the trigger lever.
4. The lever type escalator with anti-pinch function as claimed in claim 1, wherein the safety switch is disposed on a side of the skirt panel away from the steps of the escalator.
5. The lever type escalator with the function of preventing pinching is as claimed in claim 1, wherein the skirt panel is provided with reinforcing ribs at both sides of the trigger lever, the reinforcing ribs are fixedly connected with a mounting bracket, the safety switch is mounted on the mounting bracket, the mounting bracket is in threaded connection with an adjusting bolt, the adjusting bolt is provided with a locking nut for positioning the adjusting bolt and a limiting nut fixedly connected with the adjusting bolt, and an adjusting spring is abutted between the limiting nut and the trigger lever.
6. The lever type escalator with the function of preventing pinching of the escalator as claimed in claim 2, wherein the triggering lever is thin at both sides and thick at the middle, and the triggering lever is provided with steps near the outer edge, and the steps are adapted to the positioning grooves.
7. A lever type escalator as claimed in any one of claims 1 to 6, wherein the anti-trap device is arranged at the transition between the horizontal and inclined sections of the escalator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121851911.7U CN215666535U (en) | 2021-08-09 | 2021-08-09 | Lever type anti-pinch escalator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121851911.7U CN215666535U (en) | 2021-08-09 | 2021-08-09 | Lever type anti-pinch escalator |
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| Publication Number | Publication Date |
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| CN215666535U true CN215666535U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121851911.7U Active CN215666535U (en) | 2021-08-09 | 2021-08-09 | Lever type anti-pinch escalator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666236A (en) * | 2021-08-09 | 2021-11-19 | 杭州西奥电梯有限公司 | Lever type anti-pinch escalator |
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2021
- 2021-08-09 CN CN202121851911.7U patent/CN215666535U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666236A (en) * | 2021-08-09 | 2021-11-19 | 杭州西奥电梯有限公司 | Lever type anti-pinch escalator |
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