CN201729561U

CN201729561U - Safety landing door of building hoist

Info

Publication number: CN201729561U
Application number: CN2010202838167U
Authority: CN
Inventors: 陈吉川; 肖剑; 邓明旭
Original assignee: CHONGQING YINGFENGSHENG MACHINERY EQUIPMENT CO LTD
Current assignee: CHONGQING YINGFENGSHENG MACHINERY EQUIPMENT CO LTD
Priority date: 2010-08-06
Filing date: 2010-08-06
Publication date: 2011-02-02
Anticipated expiration: 2020-08-06

Abstract

The utility model relates to a safety landing door of a building hoist. The safety landing door comprises a landing door and a door lock arranged on a door frame of the landing door for controlling the landing door to open and close, and is characterized in that the door lock comprises a telescopic moving ram, a rotatable door bolt and a link stopper which is arranged on a car of the building hoist to push the ram to retract while being in contact with the ram; a slope which is in contact with the door bolt, leads the door bolt to rotate to the opening direction during the retraction process of the ram and leads the door bolt to be in the opening position at the end of stroke; reset devices are respectively arranged on the ram and the door bolt; and when the link stopper is disengaged from the ram, the ram is in the extension state, and the door bolt is in the closing position. The structure can be widely applied to building construction sites and has the characteristics of simple structure and capability of realizing intelligent opening and closing.

Description

A kind of safety landing door of building hoist

Technical field

The utility model belongs to the vehicle for construction field, relates to a kind of door of controlling turnover building hoist hoistway layer mouth.

Background technology

Building hoist is used increasingly extensive at construction site, its car outlet is called layer door with the door of external scaffolding porthole.The complete system plant of present domestic production elevator scarcely supporting layer door system, layer door made by oneself by unit in charge of construction mostly, processing and fabricating is coarse, profile is not attractive in appearance, the more important thing is the inorganic Electricity Federation of layer door lock, elevator craning cage all can be opened layer door in any position, have the danger of people or thing generation high falling.

Based on this, it is that 201102850 Chinese utility model patent " a kind of layer door safety control system of building hoist " discloses a kind of building safety device that publication number is arranged, and includes Main Control Tank, car, car position detector, safety landing door, inductor, sub-control box; Be fixedly installed on the electromagnetic lock on the described safety landing door; And be arranged on threshold switch on the described layer door; Wherein, described car position detector signal output part links to each other with the contact switch of described Main Control Tank electric loop, sensor output signal links to each other with the control end of electromagnetic lock coil, and inserting the sub-control box electrical circuit, described threshold switch connects described sub-control box electric loop and Main Control Tank electric loop respectively.This structure is by intercommunication formula mode, utilizes the electromagnetic lock structure of dynamo-electric interlock, and the sub-control box of ground-surface Main Control Tank and each floor is interconnected by electrical control, realize that layer door closed and the cage operation between safety control.But its nearly all binary pair all is by automatically controlled, with respect to the easy et out of order of mechanical control, and the input cost height, the installation unloaded operation is loaded down with trivial details, can not well satisfy the needs of present China town and country construction.

The utility model content

The technical problems to be solved in the utility model is: a kind of mechanical layer controlling device for doors is provided, and it can pin layer door when car does not rest in the porthole; When lift leans against the porthole, untie a layer door lock, allow layer door manually be opened, and can allow layer door remain on opening; When car leaves porthole relief layer door SELF CL and locked.It should possess characteristics simple in structure, easy to loading and unloading, with low cost.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of safety landing door of building hoist, comprise layer door, be located at the door lock that plays key-course door keying effect on layer every frame, it is characterized in that, on described door lock comprises scalable mobile lance, rotating keeper and is located at the building hoist car, its effect is the collision block that promotes the lance retraction when contacting with lance; Described lance is provided with in the lance retraction process and contacts with keeper and impel keeper to opening direction rotates, stroke end of a period keeper is shown in an open position inclined-plane; Be respectively equipped with reset attachment on described lance and the keeper; When described collision block and lance disengaged, described lance was in the state of stretching out, and keeper is in the closed position.

The characteristics of technique scheme are: adopt simple mechanical mechanism to reach design goal.Its principle of work is: the locked layer door of door lock when elevator does not rest in the porthole; When lift leans against the porthole, untie door lock, allow layer door manually be opened, and can allow layer door be held open state; When elevator leaves porthole relief layer door SELF CL and locked.And the technical program is simple in structure, easy to loading and unloading, with low cost.

Conceive based on foregoing invention, the utility model can also adopt another kind of technical scheme, a kind of safety landing door of building hoist, comprise layer door, be located at the door lock that plays key-course door keying effect on layer every frame, it is characterized in that, the keeper that described door lock comprises scalable mobile lance, be fixed on the lance rear end be located at the building hoist car on, its effect is the collision block that promotes the lance retraction when contacting with lance; Described keeper is in closed condition, is in opening when lance bounces back when lance stretches out; Described lance is provided with reset attachment; When described collision block and lance disengaged, described lance was in the state of stretching out.

Above-mentioned second kind of scheme directly is fixed on the lance rear end to keeper, along with the stretching out or withdraw of lance, but keeper be in respectively and layer door be in close or the position of opening, simplified bolt structure, have the advantage that structure is simpler, tooling cost is lower.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 1 is in the side elevation structural representation of closed condition for first embodiment of the utility model;

Fig. 2 is in the side elevation structural representation of opening for first embodiment of the utility model;

Fig. 3 is in the plan structure scheme drawing of closed condition for second embodiment of the utility model;

Fig. 4 is in the plan structure scheme drawing of opening for second embodiment of the utility model;

The specific embodiment

The embodiment of first kind of technical scheme of the utility model:

As shown in Figure 1, wherein building hoist car 1 is provided with bearing 2, be hinged with castor 3 on the bearing 2 as collision block, be provided with bearing 12 on the doorframe 9 of layer door, welded casing 6 on the bearing 12, be with lance 5 in the sleeve pipe 6, lance 5 has the head 4 of two arcs, is provided with compression spring 7 between lance 5 and sleeve pipe 6, is provided with inclined-plane 8 in lance 5 rear ends, keeper 10 is hinged on the otic placode 11, and otic placode 11 is welded on the bearing 12.Layer door embeds on the doorframe 9, and this layer door is hinged on the doorframe of the other end, can rotate around it.Keeper 10 among Fig. 1 is horizontal, and this moment, layer door blocked by keeper 10, was in closed condition.Keeper 10 is provided with torsion spring, and as reset attachment, torsion spring one end is connected in the rotating shaft of keeper 10, and the other end is connected on the otic placode 11.

As shown in Figure 2, the head 4 of castor 3 and lance 5 is collided among the figure, promoting lance 5 moves backward, thereby make compression spring 7, inclined-plane 8 moves thereupon backward, and contact is also upwards backed down keeper 10, and keeper 10 upwards rotates, horizontality from original Fig. 1 becomes vertical state, thereby the layer door that embeds in the doorframe 9 can inwardly be opened.

The embodiment of second kind of technical scheme of the present utility model:

As shown in Figure 3, Figure 4, it is more simple that present embodiment is compared first embodiment, its main points are outside the structure that has kept collision block, lance etc. is constant, have cancelled the inclined-plane 8 shown in Fig. 1 and Fig. 2, simultaneously the rotating keeper 10 shown in Fig. 1 and Fig. 2 are made into the keeper 13 among Fig. 3, Fig. 4.Keeper 13 is fixed on the lance, and when lance is in shown in Figure 3ly when stretching out state, keeper 13 stops the layer door that imbeds into doorframe to be opened near doorframes; In Fig. 4, lance is installed in, and caster wheel is the promotion of collision block on the construction crane car, is in retracted state, and this moment, keeper 13 moved with collision block, and away from doorframe, layer door can be opened.

Above-described only is preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not influence effect and practical applicability that the utility model is implemented.

Claims

1. safety landing door of building hoist, comprise layer door, be located at the door lock that plays key-course door keying effect on layer every frame, it is characterized in that, on described door lock comprises scalable mobile lance, rotating keeper and is located at the building hoist car, its effect is the collision block that promotes the lance retraction when contacting with lance; Described lance is provided with in the lance retraction process and contacts with keeper and impel keeper to opening direction rotates, stroke end of a period keeper is shown in an open position inclined-plane; Be respectively equipped with reset attachment on described lance and the keeper; When described collision block and lance disengaged, described lance was in the state of stretching out, and keeper is in the closed position.

2. safety landing door of building hoist, comprise layer door, be located at the door lock that plays key-course door keying effect on layer every frame, it is characterized in that, the keeper that described door lock comprises scalable mobile lance, be fixed on the lance rear end be located at the building hoist car on, its effect is the collision block that promotes the lance retraction when contacting with lance; Described keeper is in closed condition, is in opening when lance bounces back when lance stretches out; Described lance is provided with reset attachment; When described collision block and lance disengaged, described lance was in the state of stretching out.