CN205061294U - Gravity type auto -lock release mechanism - Google Patents

Abstract

The utility model relates to a gravity type auto -lock release mechanism. Still do not have one kind not need any drive power and control system now, only rely on elevator car's motion position to come the auto -lock installation device of control. The utility model discloses a characteristics are: including driving body, clamping block, linkage piece, frame and unblock handle, be provided with in the frame and be used for the horizontal cavity that leads for the driving body and be used for the vertical cavity for the clamping block direction, horizontal cavity is located the top of vertical cavity, the front portion of driving body is located horizontal cavity, and the front end of driving body is provided with guide roller, and the upper portion of clamping block is located vertical cavity, the one end of piece and the front end of driving body of linking articulates, and the other end of the piece that should link and the upper end of clamping block articulate, the one end of unblock handle is fixed at the one end of linkage piece and/or the front end of driving body. The utility model has the advantages of reasonable structure design, it is small, with low costs, manufacture, installation, maintenance convenience, performance safety, reliable.

Description

Gravity type boat davit self locking safety mechanism

Technical field

The utility model relates to a kind of gravity type boat davit self locking safety mechanism, is mainly used on elevator, to ensure that elevator door can not be opened under abnormal condition.

Background technology

Widely, current most safe locking device is all the device based on electric control system, sends by sensor the open and close that signal controls elevator door in the application of safe locking device on elevator door.There is the unpredictable factors such as program instability, virus attack due to electric system, this may cause elevator door automatically to be opened unsuitable time, thus causes safety misadventure.Therefore the opening and closing of elevator door must arrange a kind of safe locking device, without any need for propulsive effort and control system, only relies on the movement position of lift car, is realized locking and the unblock of elevator door opening-closing by the mode of mechanical linkage, safe and reliable, easy to maintenance.The elevator of especially unstable for control program or generating process sequence mistake, this security lock arrangement seems particularly important.But present also not this kind of self-locking safety device.

Utility model content

The purpose of this utility model is to overcome above shortcomings in prior art, and provides a kind of reasonable in design, and volume is little, and cost is low, manufacture processing, install, easy to maintenance, performance safety, failure-free gravity type boat davit self locking safety mechanism.

The technical scheme in the invention for solving the above technical problem is: the constructional feature of this gravity type boat davit self locking safety mechanism is: comprise driving body, locking block, STATEMENT OF FEDERALLY SPONSORED, frame and release lever, the transverse passageway for leading to driving body and the vertical cavity for leading to locking block is provided with in described frame, described transverse passageway is positioned at the top of vertical cavity, the front portion of described driving body is positioned at transverse passageway, the front end of described driving body is provided with the guide roller matched with the inwall of transverse passageway, the top of described locking block is positioned at vertical cavity, one end of described STATEMENT OF FEDERALLY SPONSORED and the front end of driving body hinged, the other end of this STATEMENT OF FEDERALLY SPONSORED and the upper end thereof of locking block, one end of described release lever is fixed on one end of STATEMENT OF FEDERALLY SPONSORED and/or the front end of driving body.

As preferably, transverse passageway described in the utility model is horizontal structure.

As preferably, vertical cavity described in the utility model is vertical shape structure.

As preferably, STATEMENT OF FEDERALLY SPONSORED described in the utility model is steel rope or connecting rod.

As preferably, the rear end of driving body described in the utility model is provided with the roller for matching with fixing guide frame on the elevator car.

As preferably, transverse passageway described in the utility model is square structure.

The utility model compared with prior art, has the following advantages and effect: structure is simple, and volume is little, and cost is lower, and manufacture processing, easy for installation, easy to maintenance, applicability is strong.Being locked by the gravity of locking block self, is normally closed blocking device.Driving body carries out horizontal motion with the up-and-down movement of lift car, thus drive locking block up-and-down movement, do not need the actuating device outside plus and control system, just can guarantee that elevator door can not be opened under abnormal condition, safe and reliable, stability is high, has highly application value for lifting means such as elevators.The utility model effectively can solve elevator door in the non-appropriate moment, the phenomenon such as, opened when lift car does not dock completely with elevator shaft mouth.

Release lever in the utility model is used for manual release.By the deadweight of locking block, locking block is positioned at extreme lower position, keep elevator door to close, and be in the lock state, and door can not be opened by common external force.Driving body carries out horizontal motion by the motion of lift car, thus drives locking block up-and-down movement by STATEMENT OF FEDERALLY SPONSORED.When lift car docks completely with elevator shaft mouth, driving body moves to rearmost part, and under the drive of STATEMENT OF FEDERALLY SPONSORED, locking block moves to extreme higher position, and the utility model unlocks, and elevator door can be opened.Otherwise when lift car and elevator shaft mouth do not dock completely, locking block can not reach extreme higher position, and elevator door is then in the lock state, and can not open always.When there is accident, release lever can be pulled by level, manually unlock, thus by external force, elevator door be opened.

Accompanying drawing explanation

Fig. 1 is the main TV structure schematic diagram of gravity type boat davit self locking safety mechanism in the utility model embodiment.

Fig. 2 is the left TV structure schematic diagram of Fig. 1.

Fig. 3 is the right TV structure schematic diagram of Fig. 1.

Fig. 4 is the plan structure schematic diagram of Fig. 1.

Fig. 5 is the perspective view of Fig. 1.

Fig. 6 is the inner structure schematic diagram of gravity type boat davit self locking safety mechanism in the utility model embodiment.

Fig. 7 is lift car when running downwards, the working state schematic representation of gravity type boat davit self locking safety mechanism in the utility model embodiment.

Fig. 8 is the left TV structure schematic diagram of Fig. 7.

Fig. 9 is lift car when upwards running, the working state schematic representation of gravity type boat davit self locking safety mechanism in the utility model embodiment.

Figure 10 is the left TV structure schematic diagram of Fig. 9.

Figure 11 is lift car when docking with elevator shaft mouth, the working state schematic representation of gravity type boat davit self locking safety mechanism in the utility model embodiment.

Figure 12 is the left TV structure schematic diagram of Figure 11.

In figure: 1, driving body; 2, locking block; 3, STATEMENT OF FEDERALLY SPONSORED; 4, frame; 41, transverse passageway; 42, vertical cavity; 5, release lever; 6, hold-down bolt; 8, guide roller; 11, lift car; 12, guide frame; 13, interlayer door; 14, body of wall; 15, attachment face one; 16, attachment face two.

Detailed description of the invention

Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.

Embodiment.

See Fig. 1 to Figure 12, the gravity type boat davit self locking safety mechanism in the present embodiment comprises driving body 1, locking block 2, STATEMENT OF FEDERALLY SPONSORED 3, frame 4 and release lever 5, and wherein, STATEMENT OF FEDERALLY SPONSORED 3 is generally steel rope or connecting rod.The size and shape of frame 4 and locking block 2 can carry out cases of otherwise standard design according to specific requirement.

Frame 4 inside of the present embodiment is provided with the transverse passageway 41 for leading to driving body 1 and the vertical cavity 42 for leading to locking block 2, transverse passageway 41 is square structure, transverse passageway 41 is generally horizontal structure, vertical cavity 42 is generally vertical shape structure, transverse passageway 41 is positioned at the top of vertical cavity 42, and transverse passageway 41 is usually located at directly over vertical cavity 42.

In the present embodiment, the front portion of driving body 1 is positioned at transverse passageway 41, and driving body 1 can transversely slide by cavity 41, and the top of locking block 2 is positioned at vertical cavity 42, and locking block 2 can vertically slide by cavity 42.One end of STATEMENT OF FEDERALLY SPONSORED 3 and the front end of driving body 1 hinged, the other end of this STATEMENT OF FEDERALLY SPONSORED 3 and the upper end thereof of locking block 2, make driving body 1 slide in transverse passageway 41 and locking block 2 just can be driven to slide in vertical cavity 42.In the present embodiment, one end of release lever 5 is fixed on one end of STATEMENT OF FEDERALLY SPONSORED 3 and/or the front end of driving body 1.

In the present embodiment, the opening part of transverse passageway 41 is provided with the roller matched with the outer wall of driving body 1 usually, the front end of driving body 1 is provided with the guide roller 8 matched with the inwall of transverse passageway 41, driving body 1 carries out cross motion along the guide plate of transverse passageway 41 inwall and the roller of opening part, to reduce friction drag, such that driving body 1 can transversely cavity 41 slides more flexibly, easily.The opening part of vertical cavity 42 is provided with the roller matched with the outer wall of locking block 2 usually, the upper end of locking block 2 is provided with the roller matched with the inwall of vertical cavity 42 usually, locking block 2 carries out vertical motion along the vertical guide plate of cavity 42 inwall and the roller of opening part, to reduce friction drag, such that locking block 2 can vertically cavity 42 slides more flexibly, easily.The rear end of driving body 1 is provided with the roller for matching with the guide frame 12 be fixed on lift car 11 usually, and to reduce friction drag, making to be positioned at guide frame 12 on lift car 11 can more convenient and flexible, actv. drive driving body 1 to move.

Hold-down bolt 6 is for being fixed to body of wall 14 by frame 4, the upper and lower of frame 4 is provided with attachment face 1 for fitting with body of wall 14 and attachment face 2 16 usually, attachment face 1 and attachment face 2 16 are all fixed with hold-down bolt 6, and frame 4 is fixed on body of wall 14 by hold-down bolt 6.The quantity of hold-down bolt 6, specification and position also can require carry out selecting and arranging according to actual installation, thus adapt to the needs of different elevator door opening-closing lockings, and the quantity as hold-down bolt 6 can be 4,6,8,10,12,16 etc.

Gravity type boat davit self locking safety mechanism in the present embodiment is installed in the body of wall 14 of both sides, elevator interlayer door 13 doorframe top usually, lift car 11 can at two gravity type boat davit self locking safety mechanism intermediary movementses, the top of lift car 11 is equiped with a guide frame 12, guide frame 12 is hump arranged in form towards the side of gravity type boat davit self locking safety mechanism, along with the motion of lift car 11, guide frame 12 can make the driving body 1 in gravity type boat davit self locking safety mechanism transversely cavity 41 seesaw.When lift car 11 does not dock completely with elevator shaft mouth, namely when car is in top or the bottom of elevator shaft mouth, locking block 2 is in extreme lower position under Gravitative Loads, stops this door of elevator interlayer door 13(to be double-open type cross pulling door) two gate flap cross motions, interlayer door 13 cannot be beaten.When lift car 11 is descending or up, until when lift car 11 docks completely with elevator shaft mouth, under the thrusting action of the guide frame 12 of driving body 1 on lift car 11, be moved horizontally to rearmost end, by the drive of STATEMENT OF FEDERALLY SPONSORED 3, locking block 2 moves to extreme higher position, and this gravity type boat davit self locking safety mechanism is in released state, thus elevator interlayer door 13 can be opened, two gate flap levels move unlatching to both sides.When lift car 11 up-and-down movement leaves docking location, locking block 2 moves to extreme lower position again owing to conducting oneself with dignity, thus elevator interlayer door 13 is in the lock state, and can not open.If run into extraordinary circumstances, need to open elevator interlayer door 13 when lift car 11 does not dock completely with elevator shaft mouth, only need the release lever 5 pulling rear portion, locking block 2 can be made to move to extreme higher position, thus unlock.

In addition, it should be noted that, the specific embodiment described in this specification sheets, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this specification sheets is only to the explanation of the utility model structure example.The equivalence change that structure, feature and principle described in all foundation the utility model inventional idea are done or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.

Claims (6)

1. a gravity type boat davit self locking safety mechanism, it is characterized in that: comprise driving body, locking block, STATEMENT OF FEDERALLY SPONSORED, frame and release lever, the transverse passageway for leading to driving body and the vertical cavity for leading to locking block is provided with in described frame, described transverse passageway is positioned at the top of vertical cavity, the front portion of described driving body is positioned at transverse passageway, the front end of described driving body is provided with the guide roller matched with the inwall of transverse passageway, the top of described locking block is positioned at vertical cavity, one end of described STATEMENT OF FEDERALLY SPONSORED and the front end of driving body hinged, the other end of this STATEMENT OF FEDERALLY SPONSORED and the upper end thereof of locking block, one end of described release lever is fixed on one end of STATEMENT OF FEDERALLY SPONSORED and/or the front end of driving body.

2. gravity type boat davit self locking safety mechanism according to claim 1, is characterized in that: described transverse passageway is horizontal structure.

3. gravity type boat davit self locking safety mechanism according to claim 1, is characterized in that: described vertical cavity is vertical shape structure.

4. gravity type boat davit self locking safety mechanism according to claim 1, is characterized in that: described STATEMENT OF FEDERALLY SPONSORED is steel rope or connecting rod.

5. gravity type boat davit self locking safety mechanism according to claim 1, is characterized in that: the rear end of described driving body is provided with the roller for matching with the guide frame fixed on the elevator car.

6. gravity type boat davit self locking safety mechanism according to claim 1, is characterized in that: described transverse passageway is square structure.