CN212450216U - Safe-to-use landing door lock device for elevator - Google Patents

Abstract

The utility model relates to a safe in utilization's layer door lock device for elevator. The existing door lock device has a large opening and is easy to cause electric shock danger due to finger insertion. The utility model discloses a lock bottom plate and switch bottom plate are equipped with circuit switch subassembly and lock subassembly between lock bottom plate and the switch bottom plate, establish the protection chamber of taking the open-ended on the lock bottom plate, and circuit switch subassembly includes elasticity strip and lock feeler, and the dislocation mode is put at the protection intracavity about the elasticity strip, and the lock feeler transversely passes through the opening with vertical posture and the cross-over connection electricity links the elasticity strip, so that open-ended vertical width is less than 12 mm. The arrangement mode of the elastic strips is changed from the original longitudinal parallel arrangement into the vertical superposition, the longitudinal width of the opening is reduced by changing the posture of the door lock contact strip when passing through the opening, the longitudinal width of the opening is ensured to be less than 12mm and to meet the requirement of protection level IP2X, the condition that an assembly maintenance worker is electrically shocked due to the fact that fingers are inserted into the opening is effectively prevented, and the use safety is improved.

Description

Safe-to-use landing door lock device for elevator

Technical Field

The utility model relates to an elevator field, concretely relates to door lock device.

Background

The existing landing door lock device for the elevator comprises a door lock bottom plate and a switch bottom plate which are separately arranged, wherein the door lock bottom plate and the switch bottom plate are respectively fixedly connected with a landing door which can be oppositely opened and closed, a circuit switch assembly and a door lock assembly are arranged between the door lock bottom plate and the switch bottom plate, a protective cover is arranged on the door lock bottom plate, the protective cover and the door lock bottom plate are enclosed to form a protective cavity with a transverse opening, the circuit switch assembly comprises an elastic strip arranged in the protective cavity and a door lock contact strip arranged on the door lock bottom plate, and when the door lock assembly is switched to a locking state from an unlocking state, the door lock contact strip is connected with the elastic strip so that the circuit switch assembly is switched to an electric connection state from a disconnection state to. When using, elasticity strip and lock feeler are electrified parts, and in order to ensure safe in utilization, elasticity strip and lock feeler are all wrapped up in the protection intracavity, and current elasticity strip sets up for vertically side by side for the opening needs to set up great longitudinal width for the lock feeler, leads to layer door lock device can't satisfy the requirement that electric safety device accords with protection level IP2X level above that, has the potential safety hazard.

The protection grade IP2X grade is effective in preventing the insertion of foreign objects of 12.5 mm.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiency of the prior art, the utility model provides a safe in utilization's layer door lock device for elevator changes the lock feeler through the relative position who changes between the elasticity strip and passes through the open-ended gesture, and then effectively reduces open-ended longitudinal width, promotes the safety in utilization.

The utility model discloses a following mode realizes: the utility model provides a safe in utilization's elevator is with layer door lock device, includes door lock bottom plate and the switch bottom plate of putting separately, be equipped with circuit switch subassembly and door lock subassembly between door lock bottom plate and the switch bottom plate, be equipped with the protection casing on the door lock bottom plate, the protection casing encloses with the door lock bottom plate and forms the horizontal open-ended protection chamber of area, circuit switch subassembly is including setting up the elastic strip in the protection chamber, setting up the lock feeler on the door lock bottom plate, the dislocation mode is divided and is put in the protection chamber about the elastic strip, the lock feeler transversely passes through opening and cross-over connection electricity with erecting the gesture and link the elastic strip, so that open-ended longitudinal width is less than 12 mm. The elastic strips are arranged in a vertical overlapping mode instead of being arranged in parallel in the original longitudinal direction, the longitudinal width of the opening is reduced by changing the posture of the door lock contact strip when the door lock contact strip passes through the opening, the longitudinal width of the opening is ensured to be smaller than 12mm and to meet the requirement of protection level IP2X, the situation that assembly and maintenance personnel get an electric shock due to the fact that fingers are inserted into the opening is effectively prevented, and the use safety is improved.

Preferably, the protection intracavity is equipped with the mount pad, elastic strip one end rigid coupling is on the mount pad, and the other end extends towards the opening and forms the contact that supplies lock feeler overlap joint electricity to connect. The mount pad had both played the effect of the fixed elastic strip of assembly, still ensured that elastic strip and external power source electricity are even, ensured that circuit switch subassembly plays the effect of control elevator running state.

Preferably, the door lock assembly comprises a main lock hook which is connected to the door lock bottom plate in a swinging mode and an auxiliary lock hook which is arranged at the bottom of the switch bottom plate, the door lock contact strip is arranged on the main lock hook, and when the main lock hook swings downwards and is buckled with the auxiliary lock hook, the door lock contact strip penetrates through the opening and is connected with the contact in an bridging mode. When the layer door moves in opposite directions and is closed in place, the main lock hook can swing and be buckled on the auxiliary lock hook, so that the contact can be bridged and electrically connected by the door lock contact strip, and the layer door is always kept in a closed state under the action of the door lock assembly.

Preferably, the two elastic strips are arranged in a transversely staggered mode, the lower elastic strip deflects towards the opening, so that the upper elastic strip avoids towards the opening end to form a passing-through channel for the door lock contact strip to swing downwards. The distance between the upper elastic strip and the opening is larger than the distance between the lower elastic strip and the opening, so that one end of the door lock contact strip can pass through the opening through a swinging path and then is lapped on the upper elastic strip, and the other end of the door lock contact strip can pass through the opening and the passage in sequence and then is lapped on the lower elastic strip.

Preferably, the top surface of the mounting seat is Z-shaped and comprises an upper mounting surface and a lower mounting surface which are arranged in a staggered mode and used for mounting the elastic strips respectively. The elastic strips are fixedly connected to the upper mounting surface and the lower mounting surface respectively, so that the elastic strips are not in contact with each other and keep a preset distance, the short circuit between the elastic strips due to the arc jumping phenomenon is prevented, the running safety of the elevator is ensured, the transverse positioning effect is also realized on the elastic strips, and a crossing channel is formed above a contact of the lower elastic strips.

Preferably, the opening is arranged on the side wall of the protection cavity facing the door lock bottom plate, and the opening is vertically long, so that the door lock contact bar can swing to pass through the opening by taking the transfer end of the main lock hook as a center. The opening is close to the door lock bottom plate, so that the main lock hook can conveniently swing to penetrate through the opening, the opening utilizes the length of the opening to provide a moving space for the main lock hook to swing to penetrate through, the axis of the opening and the swing path of the door lock contact strip are located in the same vertical plane, the longitudinal width of the opening is effectively reduced, the main lock hook can be ensured to smoothly penetrate through the opening, the door lock contact strip is further ensured to be matched and overlapped with the contact, and the condition that the electric leakage occurs due to the fact that the door lock contact strip is contacted with the switch bottom plate is effectively.

Preferably, the main lock hook is provided with an insulating part, a fixed connection end of the insulating part is fixedly connected with a swing end of the main lock hook, and a movable end of the insulating part extends towards the switch bottom plate and is fixedly connected with the door lock touch strip. The insulating part plays the effect of keeping apart door lock feeler and main latch hook, has both ensured door lock feeler and main latch hook matching linkage, still ensures that mutual not electric link between door lock feeler and the main latch hook prevents that the power from because of taking place the condition of electrocuteeing through the outside transmission of main latch hook, promotes safety in utilization.

Preferably, the door lock contact strip is matched with the bottom contour of the movable end of the insulating part and is tightly attached and fixedly connected with the bottom contour of the movable end of the insulating part. The insulating part plays the positioning action to the lock feeler, prevents that the lock feeler from taking place the unable condition of bridging two contacts simultaneously because of deformation.

Preferably, the door lock contact strip is Z-shaped and comprises an upper transverse portion, a vertical portion and a lower transverse portion, and the upper transverse portion and the lower transverse portion are respectively overlapped with the corresponding contacts and are electrically connected through the vertical portion. The door lock contact strip is in synchronous lap joint with the corresponding contact through the upper transverse part and the lower transverse part respectively, and the relative position between the upper transverse part and the lower transverse part is matched with the relative position between the contacts of the elastic strip.

Preferably, the bottom edge of the switch bottom plate is bent to form the secondary latch hook. The switch floor and the auxiliary lock hook are of an integrated structure, the structure is simplified by omitting a connecting structure, the original cost is reduced, the space of a protection cavity is effectively saved, and the assembly is convenient.

The utility model has the advantages that: the elastic strips are arranged in a vertical overlapping mode instead of being arranged in parallel in the original longitudinal direction, the longitudinal width of the opening is reduced by changing the posture of the door lock contact strip when the door lock contact strip passes through the opening, the longitudinal width of the opening is ensured to be smaller than 12mm and to meet the requirement of protection level IP2X, the situation that assembly and maintenance personnel get an electric shock due to the fact that fingers are inserted into the opening is effectively prevented, and the use safety is improved.

Drawings

Fig. 1 is a schematic structural view of a door lock device;

FIG. 2 is a schematic structural view of the circuit switch assembly and the door lock assembly;

in the figure: 1. the door lock comprises a door lock bottom plate, 2, a switch bottom plate, 3, a protective cover, 4, an opening, 5, an elastic strip, 6, a door lock contact strip, 7, an auxiliary lock hook, 8, a main lock hook, 9, an insulating part, 10 and a mounting seat.

Detailed Description

The essential features of the invention will be further explained below with reference to the drawings and the detailed description of the invention.

As shown in fig. 1 and 2, the landing door lock device for the elevator safe to use is composed of a door lock bottom plate 1 and a switch bottom plate 2 which are separately arranged, a circuit switch assembly and a door lock assembly are arranged between the door lock bottom plate 1 and the switch bottom plate 2, a protective cover 3 is arranged on the door lock bottom plate 1, the protective cover 3 and the door lock bottom plate 1 are enclosed to form a protective cavity with a transverse opening 4, the circuit switch assembly comprises an elastic strip 5 arranged in the protective cavity and a door lock contact strip 6 arranged on the door lock bottom plate 1, the elastic strip 5 is separately arranged in the protective cavity in an up-down staggered mode, and the door lock contact strip 6 transversely penetrates through the opening 4 in a vertical position and is electrically connected with the elastic strip 5 in a bridging mode, so that the longitudinal width of the opening 4 is smaller than 12 mm. The arrangement mode of the elastic strips 5 is changed from the original longitudinal parallel arrangement mode to the vertical superposition mode, and then the longitudinal width of the opening 4 is reduced by changing the posture of the door lock contact strip 6 when passing through the opening 4, so that the longitudinal width of the opening 4 is ensured to be smaller than 12mm and to meet the requirement of protection level IP2X, the condition that an assembly maintenance worker is electrically shocked due to the fact that fingers are inserted into the opening 4 is effectively prevented, and the use safety is improved.

In actual operation, elastic strip 5 is in order each other to be parallel mode setting in the protection cavity, both ensured that assembly and maintenance personnel's finger can not take place the condition of electrocuteeing because of stretching into the protection cavity, still played dustproof effect, prevented that the contact from influencing electric connection stability because of gathering the dust. Specifically, elastic strip 5 is two and horizontal dislocation set, and lower elastic strip 5 of putting squints towards opening 4 to make upper elastic strip 5 dodge towards opening 4 end and form and supply door lock feeler 6 downward wobbling to pass through the passageway, elastic strip 5 is divided from top to bottom and is put, and upper elastic strip 5 keeps away from opening 4, and lower elastic strip 5 is more close to opening 4, the horizontal projection of elastic strip 5 each other is vertical alignment, and the requirement to the vertical size of protection chamber is effectively reduced, can also effectively utilize protection intracavity space, promotes the stability that contact and door lock feeler 6 contacted through the area of increase contact, and then ensures circuit switch subassembly's triggering sensitivity and accuracy.

In actual operation, because elastic strip 5 is the structure of putting separately from top to bottom, and horizontal dislocation set for the axis of contact, opening 4 axis and lock feeler 6 all with in the same vertical plane. When the landing door is closed and the door lock assembly is switched from the unlocking state to the locking state, the main lock hook 8 swings downwards and drives the door lock contact strip 6 to be linked, and when the main lock hook 8 and the auxiliary lock hook 7 are mutually hooked, the door lock contact strip 6 swings in the vertical plane by taking the switching end of the main lock hook 8 as a center and is lapped between the contacts after passing through the opening 4, so that the electric connection of the elastic strip 5 is realized. Because the axis of door lock feeler 6 and the axis of opening 4 all are located same vertical plane for opening 4 can utilize its length direction to provide the required swing space of crossing for door lock feeler 6, effectively reduce the longitudinal width size of opening 4, and then make opening 4 can effectively prevent the diameter to be greater than the object of 12.5mm and pass through, guarantee to accord with protection level IP2X level's requirement. In addition, the size of the door lock device is reduced by reducing the longitudinal thickness of the protection cavity, raw materials are saved, and the door lock device is convenient to assemble.

In actual operation, door lock feeler strip 6 is the Z shape, including last horizontal part, perpendicular portion and lower horizontal part, goes up horizontal part and lower horizontal part and overlap joint and pass through perpendicular portion electricity and connect with corresponding contact respectively. The door lock contact strip 6 can be inserted into the protection cavity through the opening 4, so that the structure of the protection cover 3 is effectively simplified, and the production cost is reduced. The protection casing 3 includes the guard plate and turns over the surrounding edge that forms by the guard plate edge, the surrounding edge passes through the fastener rigid coupling on switch bottom plate 2 to this encloses to close and forms the protection chamber. The protective cover 3 is made of insulating materials, and electric energy is effectively prevented from being transmitted outwards.

In actual operation, be equipped with mount pad 10 in the protection cavity, elastic strip 5 one end rigid coupling is on mount pad 10, and the other end extends and forms the contact that supplies lock feeler 6 overlap joint electricity to connect towards opening 4. The top surface of the mounting seat 10 is Z-shaped, and comprises an upper mounting surface and a lower mounting surface which are arranged in a staggered manner and respectively used for mounting the elastic strip 5. The elastic strip 5 has the same structure, and the installation surface and the lower installation surface are arranged on the installation seat 10 to ensure that the elastic strip 5 is fixed on a preset station, so that the upper transverse part and the lower transverse part can be respectively connected with corresponding contacts in an overlapping and electric mode.

In actual operation, the door lock assembly comprises a main lock hook 8 which is connected to the door lock bottom plate 1 in a swinging mode and an auxiliary lock hook 7 which is arranged at the bottom of the switch bottom plate 2, wherein a door lock contact strip 6 is arranged on the main lock hook 8, and when the main lock hook 8 swings downwards and is buckled with the auxiliary lock hook 7, the door lock contact strip 6 penetrates through the opening 4 and is connected with the contact in a bridging mode. The bottom edge of the switch bottom plate 2 is bent to form the secondary latch hook 7. Compare in original split type vice latch hook 7 and switch bottom plate 2, current switch bottom plate 2 and vice latch hook 7 formula structure as an organic whole have effectively saved connection structure, and existing economize on raw materials still need not to occupy the protection intracavity volume, convenient assembly.

In practical operation, the opening 4 is arranged on the side wall of the protection cavity facing the door lock bottom plate 1, and the opening 4 is vertically long, so that the door lock contact strip 6 can swing to pass through the opening 4 by taking the transfer end of the main lock hook 8 as a center. The switching end of the main lock hook 8 is rotatably connected to the door lock bottom plate 1 through a rotating shaft, and the distance between the top edge of the opening 4 and the rotating shaft axis is larger than the distance between the end part of the door lock contact strip 6 and the rotating shaft axis, so that the door lock contact strip 6 can pass through the opening 4 through a swinging path.

In actual operation, the main latch hook 8 is provided with an insulating member 9, a fixed end of the insulating member 9 is fixedly connected with a swing end of the main latch hook 8, and a movable end extends towards the switch bottom plate 2 and is fixedly connected with the door lock contact strip 6. The door lock contact strip 6 is matched with the bottom contour of the movable end of the insulating part 9 and is tightly attached and fixedly connected with the bottom contour of the movable end of the insulating part. The top surface of door lock feeler 6 closely laminates with the swing end bottom surface of insulating part 9, and the bottom surface forms the conflict face with the contact, effectively promotes electric connection synchronism and accuracy.

Claims (10)

1. The utility model provides a safe in utilization's layer door lock device for elevator, includes door lock bottom plate (1) and the switch bottom plate (2) of putting separately, be equipped with circuit switch subassembly and door lock subassembly between door lock bottom plate (1) and switch bottom plate (2), be equipped with protection casing (3) on door lock bottom plate (1), protection casing (3) and door lock bottom plate (1) enclose to close and form the protection chamber of taking horizontal opening (4), the circuit switch subassembly is including setting up elastic strip (5) in the protection chamber, setting door lock touch strip (6) on door lock bottom plate (1), its characterized in that, elastic strip (5) are put at the protection intracavity separately in the dislocation mode from top to bottom, door lock touch strip (6) transversely pass through opening (4) and cross-over connection electricity even elastic strip (5) with the gesture of putting vertically, so that the longitudinal width of opening (4) is less than 12 mm.

2. A landing door lock device for elevators safe in use according to claim 1, characterized in that a mounting seat (10) is provided in the protection chamber, and the elastic strip (5) has one end fixed to the mounting seat (10) and the other end extending toward the opening (4) and forming a contact for the lap-joint electrical connection of the door lock contact strip (6).

3. A landing door lock device for elevators safe in use according to claim 2, wherein the door lock assembly comprises a main lock hook (8) swingably connected to the door lock base (1) and a sub lock hook (7) provided at the bottom of the switch base (2), the door lock contact (6) is provided on the main lock hook (8), and when the main lock hook (8) swings downward and is fastened to the sub lock hook (7), the door lock contact (6) passes through the opening (4) and electrically connects the contacts across.

4. A landing door lock device for elevator as claimed in claim 3, wherein the two elastic strips (5) are laterally displaced, and the lower elastic strip (5) is biased towards the opening (4) so that the upper elastic strip (5) is retracted towards the opening (4) to form a passage for the door lock contact strip (6) to swing downwards.

5. A landing door lock device for elevators according to claim 3, wherein the top surface of the mounting seat (10) is Z-shaped, and includes an upper mounting surface and a lower mounting surface which are offset and on which the elastic strip (5) is mounted, respectively.

6. A landing door lock device for elevators according to claim 3, characterized in that the opening (4) is provided on the side wall of the protection cavity facing the door lock bottom plate (1), and the opening (4) is vertically long so that the door lock contact (6) can swing through the opening (4) centering on the transfer end of the main lock hook (8).

7. A landing door lock device for elevators safe in use according to claim 6, wherein the primary latch hook (8) is provided with an insulating member (9), the fixed end of the insulating member (9) is fixed to the swing end of the primary latch hook (8), and the movable end extends toward the switch base plate (2) and is fixed to the door lock contact strip (6).

8. A landing door lock device for elevators according to claim 7, wherein the door lock feeler (6) is matched with and closely attached to the bottom profile of the movable end of the insulating member (9).

9. A landing door lock device for elevators according to claim 8, wherein the door lock contact strip (6) has a Z-shape including an upper transverse portion, a vertical portion, and a lower transverse portion, and the upper and lower transverse portions are respectively overlapped with the corresponding contacts and electrically connected through the vertical portion.

10. A landing door lock device for elevators safe in use according to claim 3, wherein the secondary latch hook (7) is bent at the bottom edge of the switch base plate (2).

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