CN102493760A - Pull-up ladder stand - Google Patents

Pull-up ladder stand Download PDF

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Publication number
CN102493760A
CN102493760A CN201110372877XA CN201110372877A CN102493760A CN 102493760 A CN102493760 A CN 102493760A CN 201110372877X A CN201110372877X A CN 201110372877XA CN 201110372877 A CN201110372877 A CN 201110372877A CN 102493760 A CN102493760 A CN 102493760A
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CN
China
Prior art keywords
cat ladder
pull
locking
type cat
snap close
Prior art date
Application number
CN201110372877XA
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Chinese (zh)
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CN102493760B (en
Inventor
邹金灿
潘浩
黄宗耀
陈华林
Original Assignee
日立电梯(中国)有限公司
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Priority to CN201110372877.XA priority Critical patent/CN102493760B/en
Publication of CN102493760A publication Critical patent/CN102493760A/en
Application granted granted Critical
Publication of CN102493760B publication Critical patent/CN102493760B/en

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Abstract

The invention discloses a pull-up ladder stand. The pull-up ladder stand comprises a ladder stand main body, at least one pair of connecting mechanisms and one or more first locking mechanisms, wherein at least one pair of the connecting mechanisms are arranged at two sides of the ladder stand main body and the one or more first locking mechanisms are arranged at the two sides of the ladder stand main body. One end of each one of the connecting mechanisms is rotatingly connected to the ladder stand main body, and the other end of the one is rotatingly connected to a well wall. One end of each one of the first locking mechanisms is fixedly connected to the well wall, and the other end of the one is snapped onto the corresponding connecting mechanism or is in a free state. The pull-up ladder stand can be installed in an elevator well having a small size, can be unfolded and folded by simple processes, and has good safety.

Description

The pull-type cat ladder

Technical field

The present invention relates to a kind of cat ladder, refer in particular to a kind of being installed in the elevator hoistways as the pull-type cat ladder that passes in and out melt pit safely.

Background technology

The pit ladder device of elevator is a kind of isolated plant of the operating personnel's of being used for safety turnover pit; Generally can select to be installed in the hoistway side to cat ladder for organic machine room-free elevator and the bigger elevator of some tunnel dimensions, pass in and out the safety of hoistway with the raising operating personnel.

But; Competition trend according to present elevator market; Require the size of elevator hoistways as much as possible little, and make the layout of elevator components in hoistway compact as far as possible, thus cause some tunnel dimensions little with the vertical lift that the side cat ladder can not be installed (like machine-roomless lift; Because the side cat ladder can be interfered with hoistway spare), its pit ladder can only be fixedly mounted under the first floor lading door dill; But because cat ladder can not exceed sill, sill stretches out the well enclosure distance and is about 85mm, and when the operating personnel got into pit, ladder rung was very little to the distance of well enclosure, occurred the injured danger of personnel's landing pit easily.

Summary of the invention

The purpose of this invention is to provide a kind of pull-type cat ladder that can be installed in the smaller elevator hoistways of size.

The present invention is achieved in that

A kind of pull-type cat ladder; It includes: the cat ladder body, be located at least one pair of bindiny mechanism and at least one first locking mechanism of said cat ladder body both sides respectively; One end of said bindiny mechanism and said cat ladder body are rotationally connected; The other end and the well enclosure of said bindiny mechanism are rotationally connected, and it is fixing that an end of said first locking mechanism is connected with well enclosure, the other end of said first locking mechanism and the clamping of said bindiny mechanism or be in free state.

Through cooperating of said bindiny mechanism and first locking mechanism, said pull-type cat ladder can be had open and pack up two states, when the pull-type cat ladder was packed up, it can be affixed on well enclosure, saved the space, was fit to be installed on the less hoistway of size.

Preferably, said well enclosure is provided with at least 3 bearings, and said bindiny mechanism and said first locking mechanism are fixed on the said well enclosure through said bearing.

Preferably; When said pull-type cat ladder is packed up; It can lean on the gravity inverted of self to lean against on the well enclosure, further saves the space, and can prevent that the pull-type cat ladder from opening automatically; Said bearing is provided with the connecting hole that is used for fixing said bindiny mechanism and said first locking mechanism, and the center of said connecting hole to the distance of well enclosure greater than 1/2nd of the width of said bindiny mechanism.

Preferably; Arbitrary said bindiny mechanism is provided with at least two supporting pins; Said first locking mechanism is provided with at least one perforate that cooperates with said supporting pin, and is used for fixing the bearing of said bindiny mechanism and is used for fixing distance between the bearing of said first locking mechanism less than the length sum of said bindiny mechanism and said first locking mechanism.When opening the pull-type cat ladder, the supporting pin in the said bindiny mechanism is caught in the perforate of said first locking mechanism, at this moment, said first locking mechanism, said bindiny mechanism and well enclosure form a stable triangle.

For the ease of opening the pull-type cat ladder, said first locking mechanism is provided with handle.

Preferably, said pull-type cat ladder also includes at least one second locking mechanism and pair of armrests, and said second locking mechanism is connected with said handrail, and when said pull-type cat ladder was opened, said second locking mechanism can be fixed with sill.The setting of said handrail; Shorten the length of pull-type cat ladder, and improved the safety that the pull-type cat ladder uses, and when said pull-type cat ladder is opened; Said second locking mechanism and said sill are fixed, and have further strengthened the safety that the pull-type cat ladder uses.

Preferably; Said second locking mechanism comprises long locking bar, short locking bar, a pair of spring, snap close connecting rod and sill snap close; Said handrail hinged securement is in being fixed between said short locking bar and the said long locking bar and with said spring between said handrail and the said short locking bar; One end of said snap close connecting rod is connected with said sill snap close, the other end is connected with said short locking bar and said handrail; Said sill snap close laterally is connected with two said handrails, and satisfy when the pull-type cat ladder is opened the position of said sill snap close, and said sill snap close be able to be stuck in the said sill.

Preferably, said short locking bar is provided with the bearing pin of band key in the junction of fixing said snap close connecting rod, and said snap close connecting rod is provided with the keyway that cooperates with the key of the bearing pin of said short locking bar.

Preferably, be connected through band key axle between said handrail and said long locking bar and the said cat ladder body.

When said handrail was in non-working condition (being collapsed state), said spring was in compressive state, and decrement is bigger; At this moment; Said long locking bar and said handrail are in released state, the band key pin axle on the said short locking bar be disconnected being connected of keyway of said snap close connecting rod, can rotate between said snap close connecting rod and the said handrail; Simultaneously the band key axle on said handrail and the said cat ladder body is disconnected key and being connected also of keyway; Can rotate between said handrail and the cat ladder, can be convenient to said handrail is opened, open said pull-type cat ladder.

Preferably, said sill snap close is provided with flanging, and said flanging cooperates with said sill, and when said pull-type cat ladder was opened, said flanging was stuck in the sill.

Preferably; When the pull-type cat ladder is in open mode; For fear of closing the use that influences the pull-type cat ladder automatically because of Room door, or produce other danger, the length of said sill snap close is greater than the distance between two handrails; When Room door was closed automatically, Room door can be withstood in the two ends of said sill snap close; And the length that said sill snap close exceeds each said armrest portion is greater than 50mm, reserved the space of letting go when using said handrail.

Preferably; It also includes cut-off switch; Said cut-off switch is connected with the control circuit of said pull-type cat ladder; Said cut-off switch includes first and second portion, and said first is fixed on the said cat ladder body through support, said second portion be fixed in well enclosure on and with the corresponding setting of said first.

When the pull-type cat ladder was opened, cut-off switch broke off, and lift loop opens circuit, and elevator does not move; And when the pull-type cat ladder was packed up, cut-off switch was closed, and lift loop is connected, and elevator can normally move.Through the setting of cut-off switch, can prevent that the user from leaving pit after, forget and pack up the pull-type cat ladder, just started elevator, and descending car and said pull-type cat ladder bumped.

Alternative is that said cut-off switch is plug-in switch, travel switch, electromagnetic switch or displacement inductive switch.

Preferably; Said pull-type cat ladder also includes the antihunting device; Said antihunting device is fixed on the well enclosure; And the position of said sill snap close was corresponding when packed up with the pull-type cat ladder said antihunting Unit Installation position, and said antihunting device can hold or catch on said sill snap close.

When the pull-type cat ladder was in non-working condition, said antihunting device can lock said sill snap close, thereby prevents structures swings such as handrail, short locking bar and long locking bar, bumps with descending car.

Alternative is that said antihunting device is permanent magnet, electromagnet or latch hook.

The present invention compared with prior art has following beneficial effect:

1. pull-type cat ladder of the present invention can be packed up when non-working condition, and is close to well enclosure, saves the space, is applicable to the elevator hoistways that the space is less, and when the pull-type cat ladder is in open mode, can be firm be fixed in the hoistway;

2. through cut-off switch is set, after the person of avoiding the use of leaves pit, forgets and pack up cat ladder, just started elevator, but descending car and said pull-type cat ladder bump.

3. when the pull-type cat ladder is in collapsed state; Through said antihunting device the sill snap close is locked; Thereby structures such as the handrail of guaranteeing to be connected with said sill snap close, short locking bar and long locking bar can not be swung, and prevent that the pull-type cat ladder from opening automatically, and bump with descending car.

Description of drawings

Fig. 1 is in the structural representation when opening for pull-type cat ladder of the present invention;

Fig. 2 is in the structural representation when packing up for pull-type cat ladder of the present invention;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is the left view figure of Fig. 1;

Fig. 5 is the front partial enlarged drawing of Fig. 1;

Fig. 6 is the partial enlarged drawing of Fig. 3;

Fig. 7 is the partial enlarged drawing of Fig. 4;

Structural representation when Fig. 8 is in closure state for cut-off switch;

Structural representation when Fig. 9 is in open mode for cut-off switch;

Figure 10 is the partial enlarged drawing of Fig. 2;

Figure 11 is the partial enlarged drawing of Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing embodiments of the invention are elaborated:

Extremely shown in Figure 4 like Fig. 1; Pull-type cat ladder of the present invention; It includes: cat ladder body 1, be located at least one pair of bindiny mechanism and at least one first locking mechanism 5 of said cat ladder body 1 both sides respectively; One end of said bindiny mechanism and said cat ladder body 1 are rotationally connected; The other end of said bindiny mechanism and well enclosure 22 are rotationally connected, and it is fixing that an end of said first locking mechanism 5 is connected with well enclosure 22, the other end of said first locking mechanism 5 and the clamping of said bindiny mechanism or be in free state.

Through cooperating of said bindiny mechanism and first locking mechanism 5; Said pull-type cat ladder can be had open and pack up two states; When the pull-type cat ladder was packed up (being that said first locking mechanism 5 is in free state), it can be affixed on well enclosure 22, saved the space; Be fit to be installed on the less hoistway of size; And when said pull-type cat ladder is opened (said first locking mechanism 5 and 6 clampings of said bindiny mechanism),, can make said pull-type cat ladder firm through cooperating of said first locking mechanism 5 and said bindiny mechanism 6.

Said well enclosure 22 is provided with at least 3 bearings 4, and said bindiny mechanism and said first locking mechanism 5 are fixed on the said well enclosure 22 through said bearing 4.Like Fig. 6 and shown in Figure 7, in this preferred embodiment, said well enclosure 22 is provided with 5 bearings 4, and is provided with 4 said bindiny mechanisms 2,6, and wherein, said bindiny mechanism 6 is provided with the supporting pin 61 of 2 protrusions.Said first locking mechanism 5 is provided with at least one perforate 51 that cooperates with said supporting pin 61, and is used for fixing the bearing 4 of said bindiny mechanism 6 and is used for fixing distance between the bearing 4 of said first locking mechanism 5 less than the length sum of said bindiny mechanism 6 with said first locking mechanism 5.When opening the pull-type cat ladder, the supporting pin 61 in the said bindiny mechanism 6 is caught in the perforate 51 of said first locking mechanism 5, at this moment, said first locking mechanism 5, said bindiny mechanism 6 and well enclosure 22 form a stable triangle.For the ease of operating said first locking mechanism 5; Locate to be provided with handle 52 at said first locking mechanism 5 near said bearing 4; When needs are opened the pull-type cat ladder or packed up the pull-type cat ladder, can the said perforate 51 of said first locking mechanism 5 be separated or clamping with said supporting pin 61 through pulling said handle 52.

When said pull-type cat ladder is packed up; It can lean on the gravity inverted of self to lean against on the well enclosure 22; Further save the space; Said bearing 4 is provided with the connecting hole that is used for fixing said bindiny mechanism 6 and said first locking mechanism 5, and bearing pin 3 is fixing with said bearing 4 with said bindiny mechanism 6 or said first locking mechanism 5 through said connecting hole, and the center of said connecting hole to the distance of well enclosure 22 greater than 1/2nd of the width of said first locking mechanism 5.

Like Fig. 1-Fig. 2, Figure 10-shown in Figure 11; Said pull-type cat ladder also includes at least one second locking mechanism and pair of armrests 7; Said second locking mechanism is connected with said handrail 7, and when said pull-type cat ladder was opened, said second locking mechanism can be fixing with sill 20.The setting of said handrail 7; Shorten the length of pull-type cat ladder, and improved the safety that the pull-type cat ladder uses, and when said pull-type cat ladder is opened; Said second locking mechanism and said sill 20 are fixing, have further strengthened the safety that the pull-type cat ladder uses.

In this preferred embodiment; Include 2 second locking mechanisms; Said second locking mechanism comprises long locking bar 8, short locking bar 9, a pair of spring 14, snap close connecting rod 11 and sill snap close 12; Said handrail 7 through cylinder connecting shaft 10 hinged securement in 13 being fixed between said handrail 7 and the said short locking bar 9 through pinning between said short locking bar 9 and the said long locking bar 8 and with said spring 14; One end of said snap close connecting rod 11 is connected with said sill snap close 12, the other end is connected with said short locking bar 9 and said handrail 7; Said sill snap close 12 laterally is connected with two said handrails 7, and satisfy when the pull-type cat ladder is opened the position of said sill snap close 12, and said sill snap close 12 be able to be stuck in the said sill 20.

When said long locking bar 8 and said short locking bar 9 be installed on through said cylinder connecting shaft 10 be installed between said handrail and the said short locking bar 9 on the said handrail 7 and with said spring 14 after, the said short locking bar 9 and the said long locking bar 8 that will be in said cylinder connecting shaft 10 two ends are welded into rigidity with said cylinder connecting shaft.

In addition, said short locking bar 9 is provided with the bearing pin of band key in the junction of fixing said snap close connecting rod 11, and said snap close connecting rod 11 is provided with the keyway that cooperates with the key of the bearing pin of said short locking bar 9.Said handrail 7 is rotationally connected with the band key axle 15 of being located at said cat ladder body 1 upper end, and the lower end of said long locking bar 8 is provided with the keyway that cooperates with said band key axle 15, and is useful on the sleeve 16 that supports and protect in the outer cover of said band key axle 15.

When said handrail 7 was in non-working condition (being collapsed state), said spring 14 was in compressive state, and decrement is bigger; At this moment; Said long locking bar 8 is in released state with said handrail 7, the band key pin axle on the said short locking bar 9 be disconnected being connected of keyway of said snap close connecting rod 11, can rotate between said snap close connecting rod 11 and the said handrail 7; Said long locking bar 8 of while is disconnected key and being connected also of keyway with the band key axle 15 of said cat ladder body 1 upper end; Can rotate between said handrail 7, said long locking bar 8 and the cat ladder body 1, can be convenient to said handrail 7 is opened, and further open said pull-type cat ladder.For the ease of said sill snap close 12 can be cooperated with said sill 20, said sill snap close 12 is provided with flanging, and when said pull-type cat ladder was opened, said flanging was stuck in the sill 20, and the top of said pull-type cat ladder is fixed.When the pull-type cat ladder is in open mode; For fear of close the use that influences the pull-type cat ladder automatically because of Room door 23; Or produce other danger; The length of said sill snap close 12 is greater than the distance between two handrails 7, and when Room door 23 was closed automatically, Room door 23 can be withstood in the two ends of said sill snap close 12; And said sill snap close 12 exceeds the length of each said handrail 7 part greater than 50mm, has reserved the space of letting go when using said handrail 7.

Like Fig. 5, Fig. 8 and shown in Figure 9; Said pull-type cat ladder also includes cut-off switch 18; Said cut-off switch 18 is connected with the control circuit of said pull-type cat ladder; Said cut-off switch 18 includes first and second portion, and said first is fixed on the said cat ladder body 1 through support 17, said second portion be fixed in well enclosure 22 on and with the corresponding setting of said first.Alternatively be, said cut-off switch is plug-in switch, travel switch, electromagnetic switch or displacement inductive switch, has belonged to prior art about the application of these several kinds of cut-off switch 18, and the present invention repeats no more at this.

When the pull-type cat ladder was opened, cut-off switch 18 broke off, and lift loop opens circuit, and elevator does not move; And when the pull-type cat ladder is packed up, cut-off switch 18 closures, lift loop is connected, and elevator can normally move.Through the setting of cut-off switch 18, can prevent that the user from leaving pit after, forget and pack up the pull-type cat ladder, just started elevator, and descending car and said pull-type cat ladder bumped.

Like Fig. 4 and shown in Figure 10; Said pull-type cat ladder also includes antihunting device 19, and said antihunting device 19 is fixed on the well enclosure 22, and the installation site of said antihunting device 19 when packing up with the pull-type cat ladder position of said sill snap close 12 corresponding; Said antihunting device 19 can hold or catch on said sill snap close 12; Thereby when making the pull-type cat ladder be in non-working condition, prevent said handrail 7 swings, the danger that bumps with descending car occurs.

Alternative is that said antihunting device 19 can be permanent magnet, electromagnet or latch hook.In this preferred embodiment, the material of said sill snap close 12 is an iron, and said antihunting device 19 is a permanent magnet.

When opening said pull-type cat ladder; The operating personnel stretches out one's hand latch hook 5 places and mention said handle 52 in door 23 places in the Room, and lifts first gradin of said cat ladder body 1 obliquely, under the effect of said syndeton 2; The lower end of said cat ladder body 1 is supported to pit (as shown in Figure 4); Make the said first said mechanism 5 catch on the supporting pin 61 in the said bindiny mechanism 6 then, at this moment, said cat ladder body 1 is locked; Meanwhile, the first of said cut-off switch 18, second portion separate, and the operating circuit of elevator is opened circuit; Opening lifting pulling force and need overcoming the attraction (or coupling mechanism force) between said antihunting device 19 and the said sill snap close 12 of said pull-type cat ladder, said handrail 7 is opened with said cat ladder body 1 simultaneously; After cat ladder body 1 is opened, rotates said handrail 7, and make said handrail up turn to said sill 20 places; Make said sill snap close 12 fasten said sill 20, said short locking bar 9 aligns with keyway with the key of said snap close connecting rod 11, and said long locking bar 8 aligns with keyway with the key of said band key axle 15; At this moment; Said spring 14 ejects said short locking bar 9, and said long locking bar 8 is fitted with said handrail 7, through cooperating of two place's keys and keyway; Said handrail 7 is locked with said sill snap close 12 simultaneously, and said pull-type cat ladder is opened (as shown in Figure 1) fully.

When packing up said pull-type cat ladder, according to the above-mentioned step contrary operation of opening the pull-type cat ladder, operating personnel's both hands are pushed the said handrail 7 and the said short locking bar 9 at two ends; Make said spring 14 compressions; At this moment, two place's keys cooperate disconnection with keyway, rotate said sill snap close 12; Key and keyway are not lined up, and down overturning of handrail 7; This moment handrail 7 can ride on the cat ladder body 1, but and non-locking; Open said first locking mechanism 5; And mention first gradin of said cat ladder body 1; Said cat ladder body 1 is leaned against on the well enclosure 22; And said first locking mechanism 5 that closes, make the perforate 51 on said first locking mechanism 5 catch on the supporting pin 61 in the said bindiny mechanism 6, lock said cat ladder body 1; At this moment, the first of said cut-off switch 18 combines with second portion, thereby when guaranteeing that elevator is activated, the control circuit of elevator can be normal; And said antihunting mechanism 19 also can automatically lock said sill snap close 12, and said pull-type cat ladder is packed up (as shown in Figure 2) fully.

More than be merely specific embodiment of the present invention, do not limit protection scope of the present invention with this; Any replacement and the improvement on the basis of not violating the present invention's design, done all belong to protection scope of the present invention.

Claims (15)

1. pull-type cat ladder; It is characterized in that; It includes: the cat ladder body, be located at least one pair of bindiny mechanism and at least one first locking mechanism of said cat ladder body both sides respectively, an end of said bindiny mechanism and said cat ladder body are rotationally connected, and the other end and the well enclosure of said bindiny mechanism are rotationally connected; It is fixing that one end of said first locking mechanism is connected with well enclosure, the other end of said first locking mechanism and the clamping of said bindiny mechanism or be in free state.
2. pull-type cat ladder as claimed in claim 1 is characterized in that said well enclosure is provided with at least 3 bearings, and said bindiny mechanism and said first locking mechanism are fixed on the said well enclosure through said bearing.
3. pull-type cat ladder as claimed in claim 1; It is characterized in that; Said bearing is provided with the connecting hole that is used for fixing said bindiny mechanism and said first locking mechanism, and the center of said connecting hole to the distance of well enclosure greater than 1/2nd of the width of said bindiny mechanism.
4. pull-type cat ladder as claimed in claim 1; It is characterized in that; Arbitrary said bindiny mechanism is provided with at least two supporting pins; Said first locking mechanism is provided with at least one perforate that cooperates with said supporting pin, and is used for fixing the bearing of said bindiny mechanism and is used for fixing distance between the bearing of said first locking mechanism less than the length sum of said bindiny mechanism and said first locking mechanism.
5. pull-type cat ladder as claimed in claim 1 is characterized in that, said first locking mechanism is provided with handle.
6. pull-type cat ladder as claimed in claim 1; It is characterized in that it also includes at least one second locking mechanism and pair of armrests, said second locking mechanism is connected with said handrail; When said pull-type cat ladder was opened, said second locking mechanism can be fixed with sill.
7. pull-type cat ladder as claimed in claim 6; It is characterized in that; Said second locking mechanism comprises long locking bar, short locking bar, a pair of spring, snap close connecting rod and sill snap close; Said handrail hinged securement is in being fixed between said short locking bar and the said long locking bar and with said spring between said handrail and the said short locking bar, and an end of said snap close connecting rod is connected with said sill snap close, the other end is connected with said short locking bar and said handrail, and said sill snap close laterally is connected with two said handrails; Satisfy when the pull-type cat ladder is opened the position of said sill snap close, and said sill snap close be able to be stuck in the said sill.
8. pull-type cat ladder as claimed in claim 7 is characterized in that, said short locking bar is provided with the bearing pin of band key in the junction of fixing said snap close connecting rod, and said snap close connecting rod is provided with the keyway that cooperates with the key of the bearing pin of said short locking bar.
9. pull-type cat ladder as claimed in claim 7 is characterized in that, is connected through band key axle between said handrail and said long locking bar and the said cat ladder body.
10. like the said pull-type cat ladder of claim 7, it is characterized in that said sill snap close is provided with flanging, said flanging cooperates with said sill, and when said pull-type cat ladder was opened, said flanging was stuck in the sill.
11., it is characterized in that the length of said sill snap close is greater than the distance between two handrails, and the length that said sill snap close exceeds each said armrest portion is greater than 50mm like the said pull-type cat ladder of claim 7.
12. pull-type cat ladder as claimed in claim 1; It is characterized in that; It also includes cut-off switch, and said cut-off switch is connected with the control circuit of said pull-type cat ladder, and said cut-off switch includes first and second portion; Said first is fixed on the said cat ladder body through support, said second portion be fixed in well enclosure on and with the corresponding setting of said first.
13. pull-type cat ladder as claimed in claim 12 is characterized in that, said cut-off switch is plug-in switch, travel switch, electromagnetic switch or displacement inductive switch.
14. pull-type cat ladder as claimed in claim 7; It is characterized in that; It also includes the antihunting device; Said antihunting device is fixed on the well enclosure, and said antihunting Unit Installation position when packing up with the pull-type cat ladder position of said sill snap close corresponding, said antihunting device can hold or catch on said sill snap close.
15. pull-type cat ladder as claimed in claim 14 is characterized in that, said antihunting device is permanent magnet, electromagnet or latch hook.
CN201110372877.XA 2011-11-21 2011-11-21 Pull-up ladder stand CN102493760B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201110372877.XA CN102493760B (en) 2011-11-21 2011-11-21 Pull-up ladder stand

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CN102493760A true CN102493760A (en) 2012-06-13
CN102493760B CN102493760B (en) 2014-04-02

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103241625A (en) * 2013-05-14 2013-08-14 浙江巨人控股有限公司 Landing door foot protection plate
CN103350937A (en) * 2013-07-24 2013-10-16 巨人通力电梯有限公司 Automatic crawling ladder device used for coming in/out of elevator pit
CN104859792A (en) * 2015-05-08 2015-08-26 泰州市金泰船舶设备有限公司 Cabin-washing ladder
CN106193998A (en) * 2016-06-29 2016-12-07 日立电梯(中国)有限公司 Pull-type cat ladder
CN106829697A (en) * 2015-12-03 2017-06-13 株式会社日立大厦系统 Elevator
CN110043184A (en) * 2018-01-15 2019-07-23 崇友实业股份有限公司 Elevator machine cheats ladder
CN110719882A (en) * 2017-06-14 2020-01-21 株式会社日立制作所 Pit ladder device of elevator
WO2020258791A1 (en) * 2019-06-28 2020-12-30 迅达(中国)电梯有限公司 Elevator pit ladder mounting device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6437644A (en) * 1987-08-03 1989-02-08 Hitachi Ltd Input/output control system
JPH1037644A (en) * 1996-07-29 1998-02-10 Matsushita Electric Works Ltd Indoor ladder
US6012545A (en) * 1998-01-15 2000-01-11 Faleide; Erling Foldable vehicle ladder system
JP3017669B2 (en) * 1995-11-16 2000-03-13 信吉 幸野 Emergency escape device
CN201321322Y (en) * 2008-12-25 2009-10-07 苏州江南嘉捷电梯股份有限公司 Elevator carriage with ladder
CN201343991Y (en) * 2009-01-19 2009-11-11 西子奥的斯电梯有限公司 Elevator shaft ladder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6437644A (en) * 1987-08-03 1989-02-08 Hitachi Ltd Input/output control system
JP3017669B2 (en) * 1995-11-16 2000-03-13 信吉 幸野 Emergency escape device
JPH1037644A (en) * 1996-07-29 1998-02-10 Matsushita Electric Works Ltd Indoor ladder
US6012545A (en) * 1998-01-15 2000-01-11 Faleide; Erling Foldable vehicle ladder system
CN201321322Y (en) * 2008-12-25 2009-10-07 苏州江南嘉捷电梯股份有限公司 Elevator carriage with ladder
CN201343991Y (en) * 2009-01-19 2009-11-11 西子奥的斯电梯有限公司 Elevator shaft ladder

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103241625A (en) * 2013-05-14 2013-08-14 浙江巨人控股有限公司 Landing door foot protection plate
CN103241625B (en) * 2013-05-14 2015-05-27 浙江巨人控股有限公司 Landing door foot protection plate
CN103350937A (en) * 2013-07-24 2013-10-16 巨人通力电梯有限公司 Automatic crawling ladder device used for coming in/out of elevator pit
CN103350937B (en) * 2013-07-24 2015-11-11 巨人通力电梯有限公司 A kind of automatic climbing ladder apparatus for passing in and out elevator pit
CN104859792A (en) * 2015-05-08 2015-08-26 泰州市金泰船舶设备有限公司 Cabin-washing ladder
CN104859792B (en) * 2015-05-08 2017-03-15 泰州市金泰船舶设备有限公司 A kind of washing of tanks ladder
CN106829697A (en) * 2015-12-03 2017-06-13 株式会社日立大厦系统 Elevator
CN106829697B (en) * 2015-12-03 2018-08-28 株式会社日立大厦系统 Elevator
CN106193998A (en) * 2016-06-29 2016-12-07 日立电梯(中国)有限公司 Pull-type cat ladder
CN110719882A (en) * 2017-06-14 2020-01-21 株式会社日立制作所 Pit ladder device of elevator
CN110043184A (en) * 2018-01-15 2019-07-23 崇友实业股份有限公司 Elevator machine cheats ladder
WO2020258791A1 (en) * 2019-06-28 2020-12-30 迅达(中国)电梯有限公司 Elevator pit ladder mounting device

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