CN202542614U

CN202542614U - Home elevator safety blocking device

Info

Publication number: CN202542614U
Application number: CN2012200949450U
Authority: CN
Inventors: 郑旭祎; 刘韶慧; 蔡健
Original assignee: ThyssenKrupp Elevator Shanghai Co Ltd
Current assignee: Tisheng home elevator (Shanghai) Co.,Ltd.
Priority date: 2012-03-14
Filing date: 2012-03-14
Publication date: 2012-11-21
Anticipated expiration: 2022-03-14

Abstract

The utility model discloses a home elevator safety blocking device, which comprises a fixed plate, a blocking plate, a micro switch and a limit switch, wherein the fixed plate is fixedly arranged on a wall where an elevator guide rail is located; the blocking plate is adjacent to the fixed plate, a fixed shaft is arranged at the joint of the blocking plate and the fixed plate, and the blocking plate can turn over around the fixed shaft till the blocking plate is perpendicular to the fixed plate; the micro switch is connected in series to a safety circuit of an elevator and is in a normally-open state; after the blocking plate turns over, a micro switch button of the micro switch pops up, and the safety circuit of the elevator is cut off; and the limit switch is connected in series to the safety circuit of the elevator and is in a normally-closed state, and the limit switch is triggered when the elevator runs and is cut off. The device is compact in structure and convenient to install, and effectively ensures safety of installation and maintenance personnel in a triple insurance mode of machinery insurance and double electric insurance.

Description

A kind of home lift safety barrier

Technical field

The utility model relates to a kind of safety barrier, particularly a kind of home lift safety barrier.

Background technology

At present, in order to pursue the utilization maximization in space, home lift generally all adopts the Backpack type structure, and structure is very compact, often adopts more shallow pit and lower overhead, thereby brings certain potential safety hazard possibly for installation, the repair and maintenance of elevator.Concrete manifestation has 2 points:

1, when installation or repair and maintenance, if the people is arranged in elevator pit, if unexpected falling appears in elevator, if there is not retaining means, more shallow pit will cause the extruding accident;

2, when the towing machine band-type brake lost efficacy, because gravity factor causes the lift car upward movement, if this moment, car top had the people, less overhead equally also can cause the extruding accident.

The utility model content

The purpose of the utility model provides a kind of home lift safety barrier compact conformation, easy for installation; And add the mode of the retrocession of electric double insurance through machine insurance, effectively guarantee to install and maintainer's safety.

In order to realize above purpose, the utility model is realized through following technical scheme:

A kind of home lift safety barrier comprises:

Adapter plate, described adapter plate are fixedly installed on the metope at cage guide place;

The system baffle plate, described system baffle plate and adapter plate are in abutting connection with setting, and the junction of this system baffle plate and adapter plate is provided with dead axle, and this system baffle plate can turn to vertical with adapter plate around said dead axle;

Micro-switch, described micro-switch is connected in the safety return circuit of elevator, is normally open, and after described system baffle plate overturn, the microswitch push-button of this micro-switch ejected, and the safety return circuit of elevator breaks off;

Limit switch, described limit switch is connected in the safety return circuit of elevator, is the normally closed state that closes, and triggers this limit switch during the elevator operation, and described limit switch breaks off.

Be with the first dead axle overcoat, the second dead axle overcoat and the 3rd dead axle overcoat on the described dead axle from top to bottom; Described first dead axle overcoat and the 3rd dead axle are set on outward on the plate face of system baffle plate; Described second dead axle is set on outward on the plate face of adapter plate.

Also comprise: shock absorber, described shock absorber be set on the dead axle and be arranged on the first dead axle overcoat and the second dead axle overcoat between.

Described shock absorber is a spring.

Also comprise: horizontally disposed anchor fitting, the two ends of described anchor fitting link to each other with the system baffle plate with adapter plate respectively.

Described anchor fitting is extension spring.

The utility model compared with prior art has the following advantages:

1, compact conformation, easy for installation;

2, guaranteed installation and maintainer's safety.

Description of drawings

Fig. 1 is the front elevation of a kind of home lift safety barrier of the utility model;

Fig. 2 is the working state schematic representation of a kind of home lift safety barrier of the utility model;

Fig. 3 is the micro-switch of a kind of home lift safety barrier of the utility model and the partial enlarged drawing of limit switch.

The specific embodiment

Below in conjunction with accompanying drawing, through specifying a preferable specific embodiment, promptly descend safety barrier, the utility model is done further elaboration.

As shown in Figure 1, a kind of home lift safety barrier comprises: adapter plate 1, system baffle plate 2, micro-switch 3, limit switch 4.

Wherein, as shown in Figure 1, adapter plate 1 is fixedly installed on the load-bearing metope at cage guide place, in the present embodiment; This adapter plate 1 is provided with two pairs to boring a hole 7, through expansion anchor adapter plate 1 is fixed on the bearing wall, and is wherein a pair of to boring a hole 7 for waist-shaped hole; Can make adapter plate 1 that the surplus of adjusting is arranged, it is more reasonable to design, certainly; In the steel structure hoistway, can use wearing bolt, also can be welded on the steel structure, it is various, convenient that installation is placed.

As shown in Figure 1, make baffle plate 2 and be provided with adapter plate 1 adjacency, be provided with dead axle between this system baffle plate 2 and the adapter plate 1, this dead axle is arranged on the junction of system baffle plate 2 and adapter plate 1; In the present embodiment, be with three sections dead axle overcoats on this dead axle from top to bottom, wherein; The dead axle overcoat 11 of the top and the dead axle overcoat 13 of below be welded on the system baffle plate 2, middle dead axle overcoat 12 is welded on the adapter plate 1, system baffle plate 2 can serve as the axle upset with this dead axle; At ordinary times time spent not, be close to metope, do not hinder elevator and normally move; When installing or maintainer when operating, then dig system baffle plate 2, when the lift car extruding is come; System baffle plate 2 bumps with the lift car fixed structure piece, stops the further operation of elevator, thereby plays the effect of main mechanical stop.

In the present embodiment, adapter plate 1 all adopts the Q235 steel with the material of system baffle plate 2, can bear enough impulsive forces, guarantees personal security; When safety barrier is installed, need to confirm that retaining means stops the elevator operation after, remaining elevator hoistways space is enough.

Micro-switch 3 all is connected in the safety return circuit of elevator with limit switch 4, and wherein, like Fig. 1 ~ shown in Figure 3, micro-switch 3 is normally open, and limit switch 4 is the normally closed state that closes.In the present embodiment; Micro-switch 3 is arranged on the top margin of adapter plate 1; Limit switch 4 is arranged on the top margin of system baffle plate 2, and when safety barrier was not worked, the microswitch push-button that limit switch 4 touch micro-switch 3 and pushes down micro-switch 3 made micro-switch closed; The conducting safety return circuit normally moves elevator.As shown in Figure 3, when the maintainer gets into hoistway, behind the system of the having overturn baffle plate 2; Limit switch 4 separates with micro-switch 3, and the microswitch push-button of micro-switch 3 ejects, and has cut off the safety return circuit of elevator; Elevator can't be moved, guaranteed maintainer's life security; After the disabler of the cut-out safety return circuit of aforesaid micro-switch 3 or micro-switch 3 produced adhesion with limit switch 4 and cause safety return circuit not break off, then elevator still can move, and elevator is in operational process; Can trigger limit switch 4, make its disconnection, thereby cut off safety return circuit; Make elevator out of service; Form double insurance with micro-switch 3, guaranteed personal security effectively, thereby formed the double insurance of electric part.In the present embodiment, it is the micro-switch of V3L-1123-D8 that micro-switch 3 is selected model for use, and limit switch 4 is selected the limit switch of SZL-VL-B for use.

As shown in Figure 1, in the present embodiment, safety barrier also comprises shock absorber 5; Shock absorber 5 is selected spring for use, and in the present embodiment, shock absorber 5 is set on the dead axle; And be arranged between the dead axle overcoat 11 and middle dead axle overcoat 12 of the top, the micro-switch 3 in safety return circuit lost efficacy with limit switch 4 in pairs, when the lift car bump is made baffle plate 2; System baffle plate 2 can be by the lift car pressed downward; Thereby because the existence of shock absorber 5, it is the distance that spring shrinks that the dead axle overcoat 11 of the top can move down shock absorber 5 with the dead axle overcoat 13 of below, can make to avoid producing absolute rigidity between lift car and the system baffle plate 2 and push; Thereby can effectively protect system baffle plate 2, make it not yielding

As depicted in figs. 1 and 2, in the present embodiment, safety barrier also comprises anchor fitting 6 and locating plate 8, and anchor fitting 6 is selected extension spring for use; Anchor fitting 6 is horizontally disposed with, and its two ends link to each other with system baffle plate 2 with adapter plate 1 respectively, when system baffle plate 2 is dug, can hold system baffle plate 2 through anchor fitting 6 it is fixed; The dead axle that locating plate 8 is welded on dead axle puts outward, digs when vertical with adapter plate 1 when system baffle plate 2, and locating plate 8 just withstands makes baffle plate 2, and it is stopped; Therefore, as shown in Figure 2, when the upset of system baffle plate 2,, can position system baffle plate 2 through the cooperation of locating plate 8 and anchor fitting 6, make system baffle plate 2 be fixed on the position vertical with adapter plate 1, promptly make baffle plate 2 and overturn 90 °.

Certainly, safety barrier can be divided into safety barrier and following safety barrier, and wherein, following safety barrier is the retaining means described in the present embodiment, can be fixed on the guide rail bracket of elevator top; Last safety barrier can be fixed on the guide rail bracket of elevator below, and horizontal location is very easy.Therefore, no matter be more shallow pit and lower overhead, the utility model can both easy installation and is effectively protected maintainer's safety.

In sum, a kind of home lift safety barrier of the utility model compact conformation, easy for installation; And add the mode of the retrocession of electric double insurance through machine insurance, effectively guarantee to install and maintainer's safety.

Although the content of the utility model has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to the restriction to the utility model.After those skilled in the art have read foregoing, for the multiple modification of the utility model with to substitute all will be conspicuous.Therefore, the protection domain of the utility model should be limited appended claim.

Claims

1. a home lift safety barrier is characterized in that, comprises:

Adapter plate (1), described adapter plate (1) are fixedly installed on the metope at cage guide place;

System baffle plate (2), described system baffle plate (2) is provided with adapter plate (1) adjacency, and this system baffle plate (2) is provided with dead axle with the junction of adapter plate (1), and this system baffle plate (2) can turn to vertical with adapter plate (1) around said dead axle;

Micro-switch (3), described micro-switch (3) is connected in the safety return circuit of elevator, is normally open, and after described system baffle plate (2) upset was got up, the microswitch push-button of this micro-switch (3) ejected, and the safety return circuit of elevator breaks off;

Limit switch (4), described limit switch (4) is connected in the safety return circuit of elevator, is the normally closed state that closes, and triggers this limit switch (4) during the elevator operation, and described limit switch (4) breaks off.

2. home lift safety barrier according to claim 1 is characterized in that, is with the first dead axle overcoat (11), the second dead axle overcoat (12) and the 3rd dead axle overcoat (13) on the described dead axle from top to bottom; Described first dead axle overcoat (11) and the 3rd dead axle overcoat (13) are arranged on the plate face of system baffle plate (2); The described second dead axle overcoat (12) is arranged on the plate face of adapter plate (1).

3. home lift safety barrier according to claim 2 is characterized in that, also comprises: shock absorber (5), described shock absorber (5) be set on the dead axle and be arranged on the first dead axle overcoat (11) and the second dead axle overcoat (12) between.

4. home lift safety barrier according to claim 3 is characterized in that, described shock absorber (5) is a spring.

5. according to claim 1 or 3 described home lift safety barriers, it is characterized in that, also comprise: horizontally disposed anchor fitting (6), the two ends of described anchor fitting (6) link to each other with system baffle plate (2) with adapter plate (1) respectively.

6. home lift safety barrier according to claim 5 is characterized in that, described anchor fitting (6) is extension spring.