CN110446676A - Lift appliance - Google Patents

Abstract

In lift appliance, at least part of hoistway equipment is set in hoistway within the scope of the up and down direction of undermost landing doorway, and hoistway equipment is opposed at spaced intervals with well enclosure.Pit ladder has a pair of posts and multiple steps.Moreover, pit ladder can be rotated in reception position and using between position, in the reception position, pit ladder is opposed with well enclosure at the position for leaning on well enclosure side than hoistway equipment, uses position at this, pit ladder is tilted relative to well enclosure.When being observed from the front pit ladder, hoistway equipment is configured between a pair of posts.Step be only configured at when make pit ladder in reception position and using the range interfered when being rotated between position with hoistway equipment outside.

Description

Lift appliance

Technical field

The present invention relates to a kind of lift appliances, wherein being provided with when operating personnel passes in and out in well pit in hoistway makes Pit ladder.

Background technique

In the pit ladder holding meanss of previous elevator, the upper arm member is horizontally fixed on guide rail.It is provided in the upper arm member The hook part tangled for the step of pit ladder.Moreover, being provided with the detection detected to the dismounting of pit ladder in the upper arm member It switchs (for example, referring to patent document 1).

Moreover, the pit ladder of previous lift appliance has fixed lateral brace, movable lateral brace and multiple pedals.It is fixed Lateral brace is fixed on car guide rail.Movable lateral brace can be between reception position and use position relative to fixed lateral brace water Level land is mobile.It is set up between fixed lateral brace and movable lateral brace to each pedal horizontal.Moreover, each pedal can pass through The movement of movable lateral brace and relative to fixed lateral brace sliding.In turn, each to step on when movable lateral brace is located at reception position A part of plate is configured at the back of car guide rail (for example, referring to patent document 2).

Existing technical literature

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2005-263387 bulletin

Patent document 2: Japanese Unexamined Patent Publication 2013-220913 bulletin

Summary of the invention

Subject to be solved by the invention

Such as in machine-roomless lift, there are many equipment for setting in hoistway, but also require to reduce the flat of hoistway as far as possible Space of planes.Therefore, as shown in Patent Documents 1 and 2, though want in hoistway set up pit ladder, sometimes also can be fixed on it is most lower Hoistway equipment, such as limit switches unit near layer interfere, to be difficult to set up pit ladder in hoistway.

In contrast, in the case where pit ladder is taken care of outside hoistway, storage space is needed, moreover, carrying bottom when in use Hole ladder also spends effort.

The present invention is completed to solve above-mentioned such project, being capable of efficient land productivity its object is to obtain one kind The lift appliance of pit ladder is set up in hoistway with the space in hoistway.

Means for solving the problems

Lift appliance of the invention has: carriage is gone up and down in hoistway；Hoistway equipment, at least part is most lower It is set in hoistway within the scope of the up and down direction of the landing doorway of layer, and hoistway equipment and well enclosure are right at spaced intervals It sets；And pit ladder, with a pair of posts and the multiple steps being set between pillar, and it is set in hoistway, bottom Hole ladder can be rotated in reception position and using between position, and in the reception position, pit ladder is leaning on well enclosure than hoistway equipment It is opposed with well enclosure at the position of side, position is used at this, pit ladder is tilted relative to well enclosure, is being observed from the front pit ladder When, hoistway equipment is configured between a pair of posts, and step, which is only configured to work as, makes pit ladder in reception position and using between position Outside the range interfered when rotation with hoistway equipment.

Moreover, lift appliance of the invention has: carriage is gone up and down with operating member, and in hoistway；Limit switches Unit has the rodlike switch support component that configures along the vertical direction and is set to switch support component and by operating The limit switches of operation of components, and limit switches unit is set near the lowest level in hoistway；And pit ladder, with end Point switch unit is juxtaposed in hoistway, and pit ladder can be in reception position and using rotating between position, with reception position It compares, is using position, pit ladder is larger relative to the tilt angle of well enclosure, and switch support component is provided with detection and opens It closes, whether detection switch detection pit ladder is located at reception position.

Invention effect

Lift appliance of the invention can be efficiently using the space in hoistway, to set up pit ladder in hoistway.

Detailed description of the invention

Fig. 1 is the top view for showing the lift appliance of embodiments of the present invention 1.

Fig. 2 is the side view for schematically showing the limit switches unit and pit ladder of Fig. 1.

Fig. 3 is the main view for schematically showing the limit switches unit and pit ladder of Fig. 1.

Fig. 4 is to show the side view for making the pit ladder of Fig. 2 be moved to the state using position.

Fig. 5 is the limit switches unit and pit ladder for schematically showing the lift appliance of embodiments of the present invention 2 Main view.

Specific embodiment

Hereinafter, modes for carrying out the present invention will be described with reference to the drawings.

Embodiment 1

Fig. 1 is the top view for showing the lift appliance of embodiments of the present invention 1, shows machine-roomless lift.In the figure In hoistway 1, it is provided with carriage 2 and counterweight 3.Carriage 2 and counterweight 3 are hung in hoistway 1 by suspension body 21.Suspension Body 21 uses a plurality of rope or multi-ribbon.

The top of hoistway 1 is provided with traction machine (not shown).Traction machine has driving rope sheave, makes to drive rope sheave rotation Motor and the brake that the rotation of driving rope sheave is braked.Around hanging with suspension body 21 on driving rope sheave.Carriage 2 and Counterweight 3 drives rope sheave to rotate and goes up and down in hoistway 1 by making.

Carriage 2 have positioned at the front surface 2a of stop side, the back side 2b opposed with front surface 2a, first side 2c and The second side 2d opposed with first side 2c.Front surface 2a is provided with carriage entrance 2e.

First and second car guide rail 4a, the 4b guided to the lifting of carriage 2 are provided in hoistway 1 and to right Weigh first and second counter weight guide track 5a, 5b that 3 lifting guides.

First car guide rail 4a is opposed with first side 2c.Second car guide rail 4b is opposed with second side 2d.That is, carriage 2 are configured between first and second car guide rail 4a, 4b.Moreover, first and second car guide rail 4a, 4b are before and after carriage 2 At same position on direction (up and down direction of Fig. 1), it is spaced from each other in the width direction (left and right directions of Fig. 1) of carriage 2 Compartment of terrain configuration.

First and second counter weight guide track 5a, 5b are spaced at intervals in the width direction (up and down direction of Fig. 1) of counterweight 3 Ground configuration.Counterweight 3 is configured between first and second counter weight guide track 5a, 5b.Moreover, counterweight 3 is identical to be located at it with carriage 2 The mode opposed with second side 2d is configured at the side in the lifting region of carriage 2 when height.

The lower part of carriage 2 is provided with first and second carriage hanging wheel 6a, 6b.The top of counterweight 3 is provided with counterweight to hang Wheel 7.Suspension body 21 has the first and second ends connecting with the top in hoistway 1.

Moreover, suspension body 21 successively hangs around the first carriage hanging wheel 6a, the second carriage hanging wheel 6b, driving from first end side Rope sheave and counterweight hanging wheel 7.That is, the lift appliance of Fig. 1 is the elevator of 2:1 baudrier.

The limit switches unit 8 as hoistway equipment is provided near the lowest level in hoistway 1.Limit switches unit 8 The second car guide rail 4b is fixed on via supporting arm 9.It is provided in carriage 2 as the behaviour operated to limit switches unit 8 Make the cam 10 of component.

Pit ladder 11 is provided in hoistway 1.Pit ladder 11 is passed in and out in operating personnel from undermost landing doorway 20 It is used when in well pit 1a.Moreover, pit ladder 11 is connected to the hoistway opposed with second side 2d via gangway ladder bracket 12 Wall 1b.

Fig. 2 is the side view for schematically showing the limit switches unit 8 and pit ladder 11 of Fig. 1, is the arrow along Fig. 1 The figure that II direction is observed.Moreover, in fig. 2 it is shown that carriage 2 stops at undermost state.

Fig. 3 is the main view for schematically showing the limit switches unit 8 and pit ladder 11 of Fig. 1, is the arrow along Fig. 1 The main view that III direction is observed.

At least part of limit switches unit 8 is set to the up and down direction range h (figure of undermost landing doorway 20 2) in.Moreover, limit switches unit 8 and well enclosure 1b are opposed at spaced intervals.

In turn, limit switches unit 8 has rodlike switch support component 13 and is set to switch support component 13 Multiple (being in this embodiment three) limit switches 14a, 14b, 14c.

Switch support component 13 configures along the vertical direction.Between limit switches 14a, 14b, 14c are spaced from each other along the vertical direction It is configured every ground.Moreover, limit switches 14a, 14b, 14c are operated by cam 10 when near the lowest part that carriage 2 reaches hoistway 1.

Pit ladder 11 is with a pair of posts 15a, 15b and the multiple steps 16 being set between pillar 15a, 15b.Step 16 horizontal arrangements spaced apart from each other in the up-down direction.

Moreover, being fixed with horizontal axis 17 between the upper end of pillar 15a, 15b.It is provided in gangway ladder bracket 12 for axis The long hole 12a of 17 perforations.Axis 17 can vertically be moved along long hole 12a.

Pit ladder 11 can be rotated centered on axis 17 in reception position (Fig. 2) and using between position (Fig. 4), in the receipts Receive position, pit ladder 11 is opposed with well enclosure 1b at than position of the limit switches unit 8 by well enclosure 1b, uses position at this It sets, pit ladder 11 is tilted relative to well enclosure 1b.

Pit ladder 11, which is located at, is located at storage position greater than pit ladder 11 relative to the tilt angle of well enclosure 1b using when position Tilt angle when setting relative to well enclosure 1b.In this embodiment, when pit ladder 11 is located at reception position, pillar 15a, 15b hang down Direct join is parallel with well enclosure 1b.

The lower end of pit ladder 11 when pit ladder 11 is located at using position, than when pit ladder 11 is located at reception position more Far from well enclosure 1b.Inclining when pit ladder 11 will not be located at than pit ladder 11 using position relative to the tilt angle of well enclosure 1b Rake angle is big.

Moreover, axis 17 does not connect with gangway ladder bracket 12 and connect with supporting arm 9 in Fig. 3.In this way, pit ladder 11 can also Not to be mounted to dedicated gangway ladder bracket 12, and it is mounted to the supporting arm 9 shared with limit switches unit 8.

As shown in figure 3, be observed from the front pit ladder 11 when, limit switches unit 8 be configured at a pair of posts 15a, 15b it Between.Moreover, step 16 is only configured at when rotating pit ladder 11 between reception position and use position and limit switches list Outside the range that member 8 interferes.

That is, step 16 is only configured at the lower end position on the lower than limit switches unit 8.In this embodiment, limit switches list The lower end of member 8 is located near undermost floor level (floor level) FL, and step 16 is only configured at than undermost floor The position of height FL on the lower.

When pit ladder 11 is located at using position, the upper end of pillar 15a, 15b are located at apart from undermost floor level The top of FL0.6m or more.Moreover, all steps 16 are more farther than limit switches unit 8 when pit ladder 11 is located at using position From well enclosure 1b.That is, when from surface, all steps 16 are located at than terminal when pit ladder 11 is located at using position Switch unit 8 leans on the position of 2 side of carriage.

Switch support component 13 is provided with detection switch 18, which detects whether pit ladder 11 is located at storage Position.When pit ladder 11 is accommodated in reception position, the junction closure of detection switch 18.Elevator control gear (is not schemed as a result, Show) determine that pit ladder 11 is located at reception position.

When pit ladder 11 leaves from reception position, the contact of detection switch 18 is disconnected.Elevator control gear determines as a result, Pit ladder 11 is not located at reception position, to forbid the usual operating of carriage 2, i.e. automatic operating.

Moreover, limit switches 14a, 14b, 14c and detection switch 18 are relative to switch support component in Fig. 2~Fig. 4 13 position and direction are different.But in fact, limit switches 14a, 14b, 14c are in the position that can be operated by cam 10 Place is arranged above and below configuration.Moreover, detection switch 18 be configured at do not interfere with cam 10 and with the bottom that is located at reception position The position of 11 contact of hole ladder.

When operating personnel enters well pit 1a, in the state of making carriage 2 stop at the position more top than lowest level, Undermost landing doorway 20 is opened manually.Then, hand is protruded into hoistway 1 from landing doorway 20, to keep pit terraced 11 are moved to using position.

Then, the part more top than floor level FL for catching at least any one party in pillar 15a, 15b, steps down in foot On step 16, to be transferred on pit ladder 11.Then, well pit 1a is arrived using pit ladder 11 is lower.

It is above-mentioned opposite sequence when operating personnel returns to undermost stop from well pit 1a.Operating personnel returns It returns to after undermost stop, hand is protruded into hoistway 1 from stop, to make pit ladder 11 back to reception position.

In such lift appliance, even if making pit ladder 11 Chong Die with limit switches unit 8 when viewed from the front, ladder Grade 16 is also not provided in the range interfered with limit switches unit 8, thus can make pit ladder 11 reception position with It is rotated using between position.

Moreover, pillar 15a, 15b are configured to the position more top than undermost floor level FL, step 16 is with appropriate Every being set to the range not interfered with limit switches unit 8, therefore operating personnel can pass in and out hoistway using pit ladder 11 Pit 1a.

It therefore, can be efficiently using the space in hoistway 1, to set up pit ladder 11 in hoistway 1.Moreover, can Improve the setting freedom degree of pit ladder 11.

Moreover, because step 16 is only configured at the position than undermost floor level FL on the lower, therefore it can be avoided bottom The interference of hole ladder 11 and limit switches unit 8, while operating personnel can easy access well pit 1a using pit ladder 11.

In turn, the lower end of limit switches unit 8 is located near undermost floor level FL.Moreover, being observed from the front When pit ladder 11, limit switches unit 8 is easily configurable between pillar 15a, 15b.Therefore, by selecting limit switches unit 8 As be configured at the hoistway equipment of the terraced 11 identical positions of pit, can more efficiently utilize the space in hoistway 1.

Further, since being provided with detection switch 18 in switch support component 13, therefore can be high using limit switches unit 8 Effect ground configuration detection switch 18 and its conducting wire, so as to set up pit ladder 11 in hoistway 1.Moreover, pit ladder can be simplified 11 storage detection system.

Moreover, in the above example, the pit ladder 11 positioned at reception position is parallel with well enclosure 1b, but as long as not with carriage 2 and other equipment interfere, can also be with angled somewhat.

Moreover, in the above example, showing limit switches unit 8 as hoistway equipment, but not limited to this.Example Such as, it is equipped on carriage in switches such as limit switches, and the operating member operated to the switch is set to the feelings of hoistway side Under condition, hoistway equipment is also possible to operating member, such as cam.Moreover, hoistway equipment is also possible to such as EN81-20 5.2.1.5.1 required pit switch.

In turn, in the above example, step 16 is only configured at the position than undermost floor level FL on the lower, but as long as It is not interfered with hoistway equipment, step can also be configured to the position more top than undermost floor level.For example, in well In the case that the lower end of road equipment is located at the position slightly more top than floor level, the step of top layer can also be configured at ratio The slightly top position of floor level.

Embodiment 2

Then, Fig. 5 be schematically show the lift appliance of embodiments of the present invention 2 limit switches unit 8 and The main view of pit ladder 11.In embodiment 2, when being observed from the front pit ladder 11, pit ladder 11 and limit switches unit 8 Configuration side by side.That is, limit switches unit 8 is configured at the outside of pit ladder 11 in the width direction of pit ladder 11, and configure Between pillar 15a and car guide rail 4b.

Step 16 is configured at than the position on the lower undermost floor level FL and position both sides against the top.That is, terraced Grade 16 is equally spaced on entire pillar 15a, 15b in the same manner as common ladder.Other structures and 1 phase of embodiment Together.

It has more than needed in this way, the plane space of hoistway 1 exists, thus even if not having to make pit ladder 11 and limit switches unit 8 It, also can be using limit switches unit 8 efficiently by the way that detection switch 18 is arranged in switch support component 13 in the case where overlapping Detection switch 18 and its conducting wire are configured, so as to set up pit ladder 11 in hoistway 1.Moreover, pit ladder 11 can be simplified Store detection system.

Moreover, the arrangement of the equipment of lift appliance is not limited to Fig. 1.For example, it can be counterweight is located at and carriage phase with it With height when the mode opposed with the back side of carriage be configured at carriage lifting region rear.

Moreover, present invention could apply to have the elevator of computer room, the elevator of 1:1 baudrier and double-deck elevator etc. in well Various types of lift appliances of pit ladder 11 are provided in road 1.

Label declaration

1: hoistway；1a: well pit；1b: well enclosure；2: carriage；8: limit switches unit (hoistway equipment)；10: cam (operating member)；11: pit ladder；13: switch support component；14a, 14b, 14c: limit switches；15a, 15b: pillar；16: ladder Grade；18: detection switch；20: landing doorway.

Claims (6)

1. a kind of lift appliance, has:

Carriage is gone up and down in hoistway；

Hoistway equipment, at least part are set to the hoistway within the scope of the up and down direction of undermost landing doorway It is interior, and the hoistway equipment is opposed at spaced intervals with well enclosure；And

Pit ladder, with a pair of posts and the multiple steps being set between the pillar, and is set to the hoistway It is interior,

The pit ladder can be rotated in reception position and using between position, and in the reception position, the pit ladder is than institute It is opposed with the well enclosure at the position of the well enclosure side to state hoistway equipment, uses position at this, the pit ladder is opposite It is tilted in the well enclosure,

When being observed from the front the pit ladder, the hoistway equipment is configured between the pair of pillar,

The step is only configured at when rotating the pit ladder between the reception position and the use position and institute It states outside the range that hoistway equipment interferes.

2. lift appliance according to claim 1, wherein

The step is only configured at the lower end position on the lower than the hoistway equipment.

3. lift appliance according to claim 1 or 2, wherein

The step is only configured at the position than the undermost floor level on the lower.

4. lift appliance according to any one of claims 1 to 3, wherein

The hoistway equipment is limit switches unit, which includes rodlike switch support component, vertically Direction configuration；And limit switches, it is set to the switch support component, and the operating member by being set to the carriage is grasped Make.

5. lift appliance according to claim 4, wherein

The switch support component is provided with detection switch, which detects whether the pit ladder is located at the storage Position.

6. a kind of lift appliance, has:

Carriage is gone up and down with operating member, and in hoistway；

Limit switches unit has the rodlike switch support component configured along the vertical direction and is set to the switch Bearing part and the limit switches operated by the operating member, and the limit switches unit is set in the hoistway Near lowest level；And

Pit ladder, is juxtaposed in the hoistway with the limit switches unit,

The pit ladder can be rotated in reception position and using between position, compared with the reception position, in the use Position, the pit ladder is larger relative to the tilt angle of well enclosure,

The switch support component is provided with detection switch, which detects whether the pit ladder is located at the storage Position.