CN216377103U - Car door lock device - Google Patents
Car door lock device Download PDFInfo
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- CN216377103U CN216377103U CN202122443849.4U CN202122443849U CN216377103U CN 216377103 U CN216377103 U CN 216377103U CN 202122443849 U CN202122443849 U CN 202122443849U CN 216377103 U CN216377103 U CN 216377103U
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Abstract
The utility model discloses a car door lock device, which comprises a lock seat arranged on a car door guide rail frame and a door fastening device arranged on a car door hanging plate, wherein the door fastening device is provided with a lock hook matched with the lock seat and comprises a rotating arm type switch which is arranged on the car door guide rail frame and acts in a matched manner with the lock hook; the rotating arm type switch comprises a switch contact of the electric safety device, a contact arm and a rotating arm module connected with the contact arm, the switch contact comprises a fixed contact and a movable contact, the movable contact is arranged on the contact arm, and the contact arm and the rotating arm module are both connected to the car door guide rail frame; the contact arm and the rotating arm module move synchronously; the hook part of the latch hook is connected with a push rod matched with the rotating arm module; when the door is opened or closed, the push rod acts with the locking hook and acts on the rotating arm module through the push rod to make the contact arm swing so as to realize the separation/connection of the static contact and the movable contact. The utility model has the advantages that: the device is suitable for severe working conditions such as humid, flammable and explosive environments and the like; the contact stability of the switch contact is improved, and the safety and reliability of the elevator door system are improved.
Description
Technical Field
The utility model relates to the technical field of elevator safety, in particular to an elevator operation car door locking technology.
Background
According to the national standard, the operation of the elevator should automatically depend on the locking of the car door in certain situations. In the safety circuit of a vertical elevator door system, a car door lock device is required to lock a door system when the elevator door is closed, so as to prevent the door panel from being opened accidentally. The locking of the door lock device should be verified by an electrical safety device that meets certain requirements. Therefore, in some specific cases, the car door lock device needs to be matched with an electrical switch, however, most of the switches are easy to be in poor contact under the condition of external mechanical shaking such as a car door lock hook, and the switch contacts of most of mechanical car door locks in the current market are separated, namely, the switch contacts are mounted on the car door lock hook and move along with the lock hook, so that the switch body is fixed, the protection level cannot be higher, and some special working conditions such as humidity and explosive environments cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a car door lock device to solve the problems that an electrical switch in the prior art is easily affected by external factors, poor in contact and difficult to safely apply in environments such as humidity and explosiveness.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a car door lock device comprises a lock seat arranged on a car door guide rail frame and a door fastening device arranged on a car door hanger plate, wherein the door fastening device is provided with a lock hook matched with the lock seat,
comprises a rotating arm type switch which is arranged on the car door guide rail frame and is matched with the lock hook to act;
the rotating arm type switch comprises a switch contact of the electric safety device, a contact arm and a rotating arm module connected with the contact arm, wherein the switch contact comprises a fixed contact and a movable contact, and the movable contact is arranged on the contact arm; the contact arm and the rotating arm module move synchronously;
the hook part of the lock hook is connected with a push rod matched with the rotating arm module;
when the door is opened or closed, the push rod acts with the locking hook, and the push rod acts on the rotating arm module to make the contact arm swing to realize the separation/connection of the static contact and the movable contact so as to judge whether the car door is locked.
Furthermore, the contact arm is connected to the car door guide rail frame through a first rotating shaft, and the first rotating shaft is lower than the static contact but not located right below the static contact.
Furthermore, the rotating arm module comprises a rotating arm connected with the first rotating shaft and a rotating arm roller which is rotatably connected to the lower end of the rotating arm and matched with the push rod.
Further, the rotating arm, the first rotating shaft and the contact arm are integrally formed.
Furthermore, the rotating arm is integrally L-shaped, and a rotating arm roller is connected to the tail end of a cross arm of the rotating arm; the push rod is hook-shaped and comprises a first contact surface close to the lock hook and a second contact surface far away from the lock hook, wherein the first contact surface and the second contact surface are oppositely arranged, and the distance between the first contact surface and the second contact surface is larger than the diameter of the rotating arm roller.
Furthermore, when the door is closed, the tumbler roller is positioned in the bayonet between the first contact surface and the second contact surface, the first contact surface is propped against the tumbler roller, the position of the tumbler is limited by the closing gate, the length of the lock hole of the lock seat engaged with the hook part of the lock hook is larger than the gap between the second contact surface and the tumbler roller,
when the door is opened, the latch hook is separated from the lock seat, the push rod is separated from the rotating arm roller, and the position of the rotating arm is limited by the opening gate; when the fixed contact is just jointed with the movable contact, the position of the rotating arm is a switching-on critical position of the rotating arm type switch;
when the rotating arm is positioned in the interval from the switching-on critical position of the rotating arm type switch to the limiting position of the switching-off gate pole, the movable contact is jointed with the fixed contact; when the rotating arm is in the interval from the critical switching-on position of the rotating arm switch to the limiting position of the opening gate pole, the movable contact is separated from the fixed contact.
Furthermore, the rotating arm module comprises a first swinging arm connected with the first rotating shaft, a second swinging arm connected with the first rotating shaft, a rotating arm, a mounting base and a rotating arm roller which is rotatably connected at the lower end of the rotating arm and matched with the push rod.
Further, the first swing arm, the second swing arm, the contact arm and the first rotating shaft are integrally formed.
Furthermore, the rotating arm is L-shaped as a whole; the mounting base is mounted on the car door guide rail frame, and the vertical arm of the rotating arm is rotatably connected to the mounting base through a rotating arm connecting shaft; the rotating arm roller is connected to the tail end of a transverse arm of the rotating arm;
the push rod is hook-shaped and comprises a first contact surface close to the lock hook and a second contact surface far away from the lock hook which are oppositely arranged, the distance between the first contact surface and the second contact surface is larger than the diameter of the tumbler roller,
the included angle between the first swing arm and the second swing arm is an obtuse angle, the first swing arm is arranged above the second swing arm, the tail ends of the first swing arm and the second swing arm are both connected with swing arm rollers, and the height of the swing arm connecting shaft is located between the swing arm rollers of the first swing arm and the swing arm rollers of the second swing arm.
Furthermore, when the door is closed, the tumbler roller is positioned in a bayonet between the first contact surface and the second contact surface; the first contact surface props against the rotating arm roller, the length of a lock hole meshed with the lock seat and the lock hook is larger than the gap between the second contact surface and the rotating arm roller, a vertical arm of the rotating arm inclines towards the first swinging arm and presses the vertical arm to act on the swinging arm roller of the first swinging arm, and the movable contact is jointed with the static contact;
when the door is opened, the latch hook is separated from the lock seat, the push rod is separated from the rocker arm roller, and the vertical arm of the rocker arm acts on the rocker arm roller of the second rocker arm to separate the movable contact from the static contact.
Furthermore, the door fastening device comprises a mounting plate and a right door vane arranged on the mounting plate, and the right door vane corresponds to one side, close to the lock hook, of the landing door static roller and the landing door moving roller when the elevator car is in a flat layer;
the door lock is characterized in that first connecting rods are arranged at two ends of the right door knife and are parallel to each other, one end of each first connecting rod is connected onto the mounting plate through a bearing, the other end of each first connecting rod is connected onto the right door knife through a bearing, the first connecting rods incline downwards from one end of each first connecting rod connected onto the mounting plate to the other end of each first connecting rod when the door is closed, and the right door knife moves towards the lock hook direction under the extrusion of the movable rollers of the layer door when the door is opened horizontally, so that the rotating hook portion of the lock hook is lifted and separated from the lock seat.
Furthermore, the lock hook is connected to the mounting plate through a lock hook connecting shaft, a long arm of the lock hook is provided with a hook part meshed with the lock seat, the lower part of a short arm of the lock hook is connected with an extrusion rolling part through an extrusion rolling part connecting shaft, when the hook part is meshed with the lock seat, the extrusion rolling part is lower than the lock hook connecting shaft in height, the extrusion rolling part is connected with the right door knife, when the right door knife is extruded by the layer door moving roller to move towards the direction of the hook part during door opening, the extrusion rolling part is extruded by the right door knife to rotate, meanwhile, the short arm of the lock hook rotates downwards, the lock hook rotates around the lock hook connecting shaft to lift the lock hook and separate from the lock seat, and the static contact is separated from the moving contact.
Further, the extrusion rolling member adopts a bearing or a roller.
Furthermore, the rotating arm type switch further comprises a contact arm buffering elastic piece, one end of the contact arm buffering elastic piece is connected to the area below the static contact, the other end of the contact arm buffering elastic piece is connected to the contact arm, and when the door is closed, the contact arm buffering elastic piece is in a compression state.
Furthermore, a protective shell is arranged to cover and protect the movable contact, the fixed contact, the contact arm and the contact arm buffering elastic piece.
The advantages of the utility model include:
1. the rotating arm type switch is arranged on the car door guide rail frame, can be protected by a shell and is suitable for more severe working condition environments, such as humid, inflammable and explosive environments;
2. when the door is closed, the movable contact is jointed with the fixed contact when the rotating arm is positioned in a range from the switching-on critical position of the rotating arm type switch to the limiting position of the gate closing pole; when the door is opened, the lock hook is separated from the lock seat, the push rod is separated from the rocker arm roller, and when the rocker arm is positioned between the switching-on critical position of the rocker arm switch and the opening gate limiting position of the rocker arm switch, the movable contact is separated from the fixed contact, so that the rocker arm switch has stronger vibration resistance and shock resistance.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model:
FIG. 1 is a schematic structural view of a closed door state according to an embodiment;
FIG. 2 is a schematic view of the tumbler switch and the latch hook engaging latch base in a closed door state according to the embodiment;
FIG. 3 is a side schematic view of a press roller mounting arrangement;
FIG. 4 is a schematic diagram of an embodiment of a rocker-type switch;
FIG. 5 is a side view of the mounting structure of the contact arm, the first rotating shaft and the rotating arm;
FIG. 6 is a schematic structural view illustrating an open state of the door according to the embodiment;
FIG. 7 is a schematic view of the tumbler switch and the latch hook engaging latch base in the second door closing state according to the embodiment;
FIG. 8 is a schematic diagram of a second embodiment of a toggle switch.
The car door lock comprises a lock base 1, a car door hanger plate 2, a lock hook 3, a hook portion 31, a push rod 32, a first contact surface 321, a second contact surface 322, a lock hook connecting shaft 33, an extrusion rolling member 34, an extrusion rolling member connecting shaft 341, a lock hook buffering elastic member 35, a lock hook limiting member 36, a rotating arm type switch 4, a contact arm 41, a movable contact 411, a contact arm buffering elastic member 412, a stationary contact 42, a first rotating shaft 43, a rotating arm 44, a rotating arm roller 45, a first rotating arm 46, a door closing contact 461, a second rotating arm 47, a door opening contact 471, a mounting base 48, a rotating arm connecting shaft 49, a door closing device 5, a mounting plate 51, a left door vane 52, a second connecting rod 521, a right door vane 53, a first connecting rod 531, a right door vane limiting member 532, a layer door stationary roller 54, a layer door moving roller 55 and a protective shell 6.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, which are illustrative of the present invention and are not to be construed as limiting the present invention.
References to left, right, up, down, high, low, counterclockwise, clockwise, and the like in this description are made with reference to the perspective of fig. 1.
Example one
As shown in fig. 1-6, a car door lock device comprises a lock base 1 mounted on a car door rail frame, and a door fastening device mounted on a car door hanger plate 2, wherein the door fastening device is provided with a lock hook 3 matched with the lock base 1,
comprises a rotating arm type switch 4 which is arranged on the car door guide rail frame and is matched with the lock hook 3 to act;
the rotating arm type switch 4 comprises a switch contact of an electric safety device, a contact arm 41 and a rotating arm module connected with the contact arm 41, the switch contact comprises a fixed contact 42 and a movable contact 411, the movable contact 411 is arranged on the contact arm 41, and the contact arm 41 and the rotating arm module move synchronously;
a hook part 31 of the locking hook 3 is connected with a push rod 32 matched with the rotating arm module;
when the door is opened/closed, the push rod 32 acts along with the locking hook 3, and the push rod 32 acts on the rotating arm module to enable the contact arm 41 to swing so as to realize the separation/engagement of the fixed contact 42 and the movable contact 411, so as to judge whether the door is locked or not.
The contact arm 41 is connected to the door rail frame via a first rotating shaft 43, and the first rotating shaft 43 is lower than the stationary contact 42 but not located right below the stationary contact 42.
The rotating arm module comprises a rotating arm 44 connected with a first rotating shaft 43 and a rotating arm roller 45 which is rotatably connected to the lower end of the rotating arm 44 and matched with the push rod 32;
of course, one skilled in the art can provide that the rotating arm 44, the first rotating shaft 43 and the contact arm 41 are integrally formed.
The rotating arm 44 is L-shaped as a whole, and a rotating arm roller 45 is connected to the tail end of a cross arm of the rotating arm 44; the push rod 32 is hook-shaped and comprises a first contact surface 321 close to the locking hook 3 and a second contact surface 322 far from the locking hook 3 which are oppositely arranged, and the distance between the first contact surface 321 and the second contact surface 322 is larger than the diameter of the rotating arm roller 45.
When the door is closed, the rotating arm roller 45 is positioned in the bayonet between the first contact surface 321 and the second contact surface 322, the first contact surface 321 props against the rotating arm roller 45, the rotating arm 44 is positioned at the closing gate limit position, the closing limit position is shown as an auxiliary line A in figure 4, the length of the lock hole of the lock seat 1 engaged with the hook part 31 of the lock hook 3 is larger than the gap between the second contact surface 322 and the rotating arm roller 45,
when the door is opened, the latch hook 3 is separated from the latch seat 1, the push rod 32 is separated from the rotating arm roller 45, the position of the rotating arm 44 is the open gate limit, and the open gate limit is shown as an auxiliary line B in fig. 4; the position of the rotating arm 44 when the fixed contact 42 is just jointed with the moving contact 411 is a rotating arm type switch on critical position, and the rotating arm type switch on critical position is shown as an auxiliary line C in figure 4;
when the rotating arm 44 is in the interval from the turning-on critical position of the rotating arm type switch to the turning-off gate limiting position, the movable contact 411 is jointed with the fixed contact 42; when the rotating arm 44 is in the interval from the turning-on critical position of the rotating arm switch to the opening gate limit, the movable contact 411 is separated from the fixed contact 42.
The door fastening device 5 comprises a mounting plate 51, and a left door vane 52 and a right door vane 53 which are arranged on the mounting plate 51 and are parallel to each other, wherein the left door vane 52 and the right door vane 53 respectively correspond to the left side (the side far away from the lock hook) and the right side (the side close to the lock hook) of a landing door static roller 54 and a landing door dynamic roller 55 when the elevator car is flat;
the two ends of the right door knife 53 are both provided with first connecting rods 531, the first connecting rods 531 at the two ends of the right door knife 53 are parallel to each other, one end of each first connecting rod 531 is connected to the mounting plate 51 through a bearing, the other end of each first connecting rod 531 is connected to the right door knife 53 through a bearing, when the door is closed, the first connecting rods 531 incline downwards from one end connected to the mounting plate 51 to the other end of each first connecting rod 531, and in the process of opening the door in a flat layer, the right door knife 53 is extruded by the layer door movable roller 55 to move towards the latch hook 3, so that the rotating hook part of the latch hook 3 is lifted to be separated from the latch seat 1;
the two ends of the left door knife 52 are both provided with a second connecting rod 521, the second connecting rods 521 at the two ends of the left door knife 52 are parallel to each other, one end of each second connecting rod 521 is connected to the mounting plate 51 through a bearing, the other end of each second connecting rod 521 is connected to the left door knife 52 through a bearing, and the second connecting rod 521 inclines downwards from one end connected to the left door knife 52 to the other end of each second connecting rod.
The lock hook 3 is connected to the mounting plate 51 through a lock hook connecting shaft 33, a long arm of the lock hook 3 is provided with a hook portion 31 engaged with the lock holder 1, the lower portion of a short arm of the lock hook 3 is connected with an extrusion rolling member 34 through an extrusion rolling member connecting shaft 341, the height of the extrusion rolling member 34 is lower than that of the lock hook connecting shaft 33 when the hook portion 31 is engaged with the lock holder 1, the extrusion rolling member 34 is connected with the right door vane 53, when the door is opened, the right door vane 53 is extruded by the layer door moving roller 55 to move towards the direction of the hook portion 31, the extrusion rolling member 34 is extruded by the right door vane 53 to rotate, meanwhile, the lock hook 3 rotates around the lock hook connecting shaft 33, the short arm of the lock hook 3 rotates downwards, the hook portion 31 of the lock hook 3 is lifted upwards to be separated from the lock holder 1, and the static contact 42 is separated from the movable contact 411.
The press roller 34 may be a bearing or a roller.
A right knife limiting piece 532 is arranged below the extrusion rolling piece 34 to limit the moving amplitude of the right knife 53.
The upper edge of the lock hook 3 is connected with a lock hook buffering elastic piece 35, the other end of the lock hook buffering elastic piece 35 is connected to the car door guide rail frame, and a lock hook limiting piece 36 is arranged below the lock hook 3.
The rocker switch 4 further includes a contact arm buffering elastic member 412, one end of the contact arm buffering elastic member 412 is connected to the area below the stationary contact 42, and the other end thereof is connected to the contact arm 41, and when the door is closed, the contact arm buffering elastic member 412 is in a compressed state.
A protective shell 6 is further provided to cover and protect the movable contact 411, the fixed contact 42, the contact arm 41 and the contact arm buffer elastic member 412.
The latch hook buffering elastic member 35 and the contact arm buffering elastic member 412 may be spring or rubber elastic member or other elastic members capable of achieving the same function.
The working principle of the utility model is as follows:
as shown in fig. 4, in order to more clearly explain the operation of the swing-arm switch 4, the following auxiliary lines are added in fig. 4: when the door system is fully closed, the position of the rotating arm 44 is shown as an auxiliary line A; when the car door system is completely opened, namely the lock hook 3 is separated from the lock seat 1, the position of the rotating arm 44 is shown as an auxiliary line B; and the position of the rotating arm 44 at the time of just turning on the switch is shown by an auxiliary line C, the included angle between the auxiliary line B and the auxiliary line a is a rotating angle X, the horizontal stroke of the rotating arm roller 45 corresponding to the rotating angle X is L1, the included angle between the auxiliary line C and the auxiliary line a is called a turn-on angle Y, the rotating arm 44 turns on the rotating arm switch 4 at the turn-on angle Y, the turn-on stroke of the rotating arm roller 45 corresponding to the turn-on angle Y is L2, in other words, the rotating arm 44 arbitrarily swings the rotating arm switch 4 at the turn-on angle Y and is turned on, if the door latch hook 3 vibrates and impacts to cause the rotating arm 44 to swing, the vibration and impact resistance of the rotating arm switch 4 can be quantitatively expressed as:
as long as the amplitude of the swing of the rocker 44 caused by the vibration or impact is smaller than the on angle Y or the value of the horizontal displacement of the push rod 32 caused by the vibration or impact is smaller than the on stroke L2 of the rocker roller 45, the rocker switch 4 is not turned off. In addition, the horizontal stroke L1 of the rotating arm roller 45 and the switching-on stroke L2 of the rotating arm roller 45 are determined according to the working condition of the car door lock, the radius of the rotating arm 44 is determined by L1 and L2, and when the rotating angle X is not changed, the larger the switching-on angle is, the larger the switching-on stroke L2 of the rotating arm roller 45 is, and the better the vibration and impact resistance is.
As shown in fig. 2 and 4, when the elevator door system is closing, the latch hook 3 is engaged with the lock base 1 in place, in the process, the door latch hook 3 is first changed from the lifted state to the horizontal state, the push rod 32 is first smoothly changed from the lifted state to the horizontal state along with the latch hook 3, and is engaged with the rocker roller 45, that is, the rocker roller 45 enters the bayonet between the first contact surface 321 and the second contact surface 322, then the door latch hook 3 is translated for a distance in the door closing direction, the door system is completely closed, the push rod 32 horizontally pushes the rocker roller 45 in the door closing direction, at this time, the rocker 44 rotates until the position shown by the auxiliary line a, the switch is completely closed, and at this time, the door is also completely closed.
As shown in fig. 4 and 6, when the car is on the flat floor and the elevator door system is opening the door, the right knife 53 on the door closing device is pressed by the layer door moving roller 55 after moving a certain distance in the door opening direction, and moves in the direction of the locking hook 3, so that the pressing roller 34 rotates, and at the same time, the short arm of the locking hook 3 rotates downward (counterclockwise), the hook portion 31 of the locking hook 3 is lifted up and separated from the lock seat 1, in this process, the rotating arm 44 moves and lifts up along with the push rod 32 and rotates clockwise until the position shown by the auxiliary line B, and the stationary contact 42 of the rotating arm switch 4 is completely disconnected from the movable contact 411. In particular, when the fixed contact 42 and the movable contact 411 of the rocker switch 4 are stuck due to an abnormality and cannot be normally separated, because the rocker 44 and the contact arm 41 are rigidly connected together, the rocker 44 cannot rotate, and at this time, because the push rod 32 moves horizontally with the latch hook 3 by a distance (lock hole length) that is much greater than the gap between the second contact surface 322 of the push rod 32 and the rocker roller 45, before the push rod 32 is lifted, the second contact surface 322 contacts the rocker roller 45 to force the rocker 44 to rotate clockwise, so that the fixed contact 42 and the movable contact 411 are separated until the latch hook 3 and the latch base 1 are completely disengaged, and at this time, the first and second contact surfaces of the push rod 32 and the rocker roller 45 are also disengaged, so that the car door can be normally opened.
Example two
The present embodiment is different from the first embodiment in the boom module. As shown in fig. 7 to 8, the boom module of the present embodiment is specifically as follows:
the rotating arm module comprises a first swinging arm 46 connected with the first rotating shaft 43, a second swinging arm 47 connected with the first rotating shaft 43, a rotating arm 44, a mounting base 48 and a rotating arm roller 45 which is rotatably connected at the lower end of the rotating arm 44 and matched with the push rod 32;
the first swing arm 46, the second swing arm 47, the contact arm 41, and the first rotating shaft 43 may be integrally formed by those skilled in the art.
The rotating arm 44 is L-shaped as a whole; the mounting base 48 is mounted on the car door guide rail frame, and the vertical arm of the rotating arm 44 is rotatably connected to the mounting base 48 through a rotating arm connecting shaft 49; the rotating arm roller 45 is connected to the tail end of a cross arm of the rotating arm 44;
the push rod 32 is hook-shaped and comprises a first contact surface 321 close to the locking hook 3 and a second contact surface 322 far from the locking hook 3 which are oppositely arranged, the distance between the first contact surface 321 and the second contact surface 322 is larger than the diameter of the rotating arm roller 45,
the included angle between the first swing arm 46 and the second swing arm 47 is an obtuse angle, the first swing arm 46 is located above the second swing arm 47, swing arm rollers are connected to the ends of the first swing arm 46 and the second swing arm 47, and the height of the swing arm connecting shaft 49 is between the swing arm roller of the first swing arm 46 and the swing arm roller of the second swing arm 47.
When the door is closed, the rotating arm roller 45 is positioned in the bayonet between the first contact surface 321 and the second contact surface 322; the first contact surface 321 is abutted against the rotating arm roller 45, the length of a lock hole for meshing the lock base 1 and the lock hook 3 is larger than the gap between the second contact surface 322 and the rotating arm roller 45, the vertical arm of the rotating arm 44 inclines towards the first swinging arm 46 and acts on the swinging arm roller of the first swinging arm 46, and the movable contact 411 is jointed with the fixed contact 42;
in the door opening state, the latch hook 3 is disengaged from the latch base 1, the push rod 32 is disengaged from the swing arm roller 45, and the vertical arm of the swing arm 44 acts on the swing arm roller of the second swing arm 47, so that the movable contact 411 is separated from the stationary contact 42.
In detail, the working principle of the embodiment is as follows:
when the elevator door system is closed, the hook part 31 of the lock hook 3 is meshed with the lock seat 1 in place, in the process, the car door lock hook 3 is firstly changed from a lifting state to a horizontal state, the push rod 32 is firstly stably changed from the lifting state to the horizontal state along with the lock hook 3 and is meshed with the rotating arm roller 45, namely the rotating arm roller 45 enters a bayonet between the first contact surface 321 and the second contact surface 322, and then the car door lock hook 3 is translated for a certain distance in the door closing direction to completely close the car door system; the first contact surface 321 is against the rotating arm roller 45, the length of the locking hole of the lock base 1 engaged with the locking hook 3 is larger than the gap between the second contact surface 322 and the rotating arm roller 45, the push rod 32 also pushes the rotating arm roller 45 horizontally in the door closing direction, at this time, the rotating arm 44 rotates counterclockwise, the vertical arm of the rotating arm acts on the door closing contact point 461 of the rotating arm roller of the first rotating arm 46, and the movable contact point 411 is jointed with the stationary contact point 42;
when the elevator door system is opening the door, the right door knife 53 on the door closing device is extruded by the layer door moving roller 55 after moving a certain distance in the door opening direction, moves in the direction of the lock hook 3, pushes the extrusion rolling part 34 of the lock hook 3 to rotate, meanwhile, the short arm of the lock hook 3 moves downwards (rotates anticlockwise), the lock hook 3 is lifted up to be separated from the lock seat 1, the first contact surface and the second contact surface of the push rod 32 are also separated from the rotating arm roller 45, in the process, the rotating arm 44 moves and lifts along with the push rod 32 to rotate clockwise, the vertical arm of the rotating arm 44 acts on the door opening contact point 471 of the rotating arm roller of the second rotating arm 47, the moving contact point 411 is separated from the static contact point 42, and the car door can be normally opened.
The advantages of the utility model include: the rotating arm type switch can be sealed and protected in a shell protection mode, and the rotating arm type switch is suitable for severe working conditions such as humid, flammable and explosive environments and the like; the protection level is improved; the anti-vibration and anti-impact performance can be improved, the contact stability of the switch contact is greatly improved, the situation that the accidental disconnection of the rotating arm type switch causes the disconnection of a safety loop of a door system to stop an elevator accidentally is avoided, and the safety and reliability of an elevator door system are improved.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (15)
1. The utility model provides a sedan-chair door lock device, closes the device including installing lock seat on sedan-chair door guide rail frame, installing the door on sedan-chair door hanger plate and close, the door close be provided with on the device with the latch hook that the lock seat matches, its characterized in that:
comprises a rotating arm type switch which is arranged on the car door guide rail frame and is matched with the lock hook to act;
the rotating arm type switch comprises a switch contact of the electric safety device, a contact arm and a rotating arm module connected with the contact arm, wherein the switch contact comprises a fixed contact and a movable contact, and the movable contact is arranged on the contact arm; the contact arm and the rotating arm module move synchronously;
the hook part of the lock hook is connected with a push rod matched with the rotating arm module;
when the door is opened or closed, the push rod acts with the locking hook, and the push rod acts on the rotating arm module to make the contact arm swing to realize the separation/connection of the static contact and the movable contact so as to judge whether the car door is locked.
2. The car door lock device according to claim 1, wherein:
the contact arm is connected to the car door guide rail frame through a first rotating shaft, and the first rotating shaft is lower than the static contact but not located right below the static contact.
3. The car door lock device according to claim 2, wherein:
the rotating arm module comprises a rotating arm connected with the first rotating shaft and a rotating arm roller which is rotatably connected to the lower end of the rotating arm and matched with the push rod.
4. The car door lock device according to claim 3, wherein:
the rotating arm, the first rotating shaft and the contact arm are integrally formed.
5. The car door lock device according to claim 3 or 4, wherein:
the rotating arm is integrally L-shaped, and a rotating arm roller is connected to the tail end of a transverse arm of the rotating arm; the push rod is hook-shaped and comprises a first contact surface close to the lock hook and a second contact surface far away from the lock hook, wherein the first contact surface and the second contact surface are oppositely arranged, and the distance between the first contact surface and the second contact surface is larger than the diameter of the rotating arm roller.
6. The car door lock device according to claim 5, wherein:
when the door is closed, the tumbler roller is positioned in the bayonet between the first contact surface and the second contact surface, the first contact surface is propped against the tumbler roller, the position of the tumbler is limited by the closing gate, the length of the lock hole meshed by the lock seat and the hook part of the lock hook is larger than the gap between the second contact surface and the tumbler roller,
when the door is opened, the latch hook is separated from the lock seat, the push rod is separated from the rotating arm roller, and the position of the rotating arm is limited by the opening gate; when the fixed contact is just jointed with the movable contact, the position of the rotating arm is a switching-on critical position of the rotating arm type switch;
when the rotating arm is positioned in the interval from the switching-on critical position of the rotating arm type switch to the limiting position of the switching-off gate pole, the movable contact is jointed with the fixed contact; when the rotating arm is in the interval from the critical switching-on position of the rotating arm switch to the limiting position of the opening gate pole, the movable contact is separated from the fixed contact.
7. The car door lock device according to claim 2, wherein:
the rotating arm module comprises a first swinging arm connected with the first rotating shaft, a second swinging arm connected with the first rotating shaft, a rotating arm, a mounting base and a rotating arm roller which is rotatably connected to the lower end of the rotating arm and matched with the push rod.
8. The car door lock device according to claim 7, wherein:
the first swing arm, the second swing arm, the contact arm and the first rotating shaft are integrally formed.
9. A car door lock device according to claim 7 or 8, wherein:
the rotating arm is L-shaped as a whole; the mounting base is mounted on the car door guide rail frame, and the vertical arm of the rotating arm is rotatably connected to the mounting base through a rotating arm connecting shaft; the rotating arm roller is connected to the tail end of a transverse arm of the rotating arm;
the push rod is hook-shaped and comprises a first contact surface close to the lock hook and a second contact surface far away from the lock hook which are oppositely arranged, the distance between the first contact surface and the second contact surface is larger than the diameter of the tumbler roller,
the included angle between the first swing arm and the second swing arm is an obtuse angle, the first swing arm is arranged above the second swing arm, the tail ends of the first swing arm and the second swing arm are both connected with swing arm rollers, and the height of the swing arm connecting shaft is located between the swing arm rollers of the first swing arm and the swing arm rollers of the second swing arm.
10. The car door lock device according to claim 9, wherein:
when the door is closed, the tumbler roller is positioned in a bayonet between the first contact surface and the second contact surface; the first contact surface props against the rotating arm roller, the length of a lock hole meshed with the lock seat and the lock hook is larger than the gap between the second contact surface and the rotating arm roller, a vertical arm of the rotating arm inclines towards the first swinging arm and presses the vertical arm to act on the swinging arm roller of the first swinging arm, and the movable contact is jointed with the static contact;
when the door is opened, the latch hook is separated from the lock seat, the push rod is separated from the rocker arm roller, and the vertical arm of the rocker arm acts on the rocker arm roller of the second rocker arm to separate the movable contact from the static contact.
11. The car door lock device according to claim 1, wherein:
the door fastening device comprises a mounting plate and a right door vane arranged on the mounting plate, and the right door vane corresponds to one side, close to the lock hook, of the landing door static roller and the landing door dynamic roller when the elevator car is in a flat landing;
the door lock is characterized in that first connecting rods are arranged at two ends of the right door knife and are parallel to each other, one end of each first connecting rod is connected onto the mounting plate through a bearing, the other end of each first connecting rod is connected onto the right door knife through a bearing, the first connecting rods incline downwards from one end of each first connecting rod connected onto the mounting plate to the other end of each first connecting rod when the door is closed, and the right door knife moves towards the lock hook direction under the extrusion of the movable rollers of the layer door when the door is opened horizontally, so that the rotating hook portion of the lock hook is lifted and separated from the lock seat.
12. The car door lock device according to claim 11, wherein:
the door lock is characterized in that the lock hook is connected to the mounting plate through a lock hook connecting shaft, a long arm of the lock hook is provided with a hook part meshed with the lock seat, the lower part of a short arm of the lock hook is connected with an extrusion rolling part through an extrusion rolling part connecting shaft, the hook part is meshed with the lock seat, the extrusion rolling part is lower than the lock hook connecting shaft in height, the extrusion rolling part is connected with the right door knife, when the door is opened, the right door knife is extruded by the layer door moving roller to move towards the direction of the hook part, the extrusion rolling part is extruded by the right door knife to rotate, meanwhile, the short arm of the lock hook rotates downwards, the lock hook rotates around the lock hook connecting shaft to lift the lock hook and is separated from the lock seat, and the static contact is separated from the moving contact.
13. The car door lock device according to claim 12, wherein:
the extrusion rolling element adopts a bearing or a roller.
14. The car door lock device according to claim 1, wherein:
the rotating arm type switch further comprises a contact arm buffering elastic piece, one end of the contact arm buffering elastic piece is connected to the area below the static contact, the other end of the contact arm buffering elastic piece is connected to the contact arm, and when the door is closed, the contact arm buffering elastic piece is in a compression state.
15. The car door lock device according to claim 14, wherein:
and the protective shell is also arranged to cover and protect the movable contact, the fixed contact, the contact arm and the contact arm buffering elastic piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122443849.4U CN216377103U (en) | 2021-10-11 | 2021-10-11 | Car door lock device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122443849.4U CN216377103U (en) | 2021-10-11 | 2021-10-11 | Car door lock device |
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| Publication Number | Publication Date |
|---|---|
| CN216377103U true CN216377103U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122443849.4U Active CN216377103U (en) | 2021-10-11 | 2021-10-11 | Car door lock device |
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| CN (1) | CN216377103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788389A (en) * | 2021-10-11 | 2021-12-14 | 日立电梯（中国）有限公司 | Car door lock device |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788389A (en) * | 2021-10-11 | 2021-12-14 | 日立电梯（中国）有限公司 | Car door lock device |
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