DE212020000575U1 - Safety cabin device for elevator - Google Patents

Abstract

Safety car device for elevator, comprising a car (1) and a safety unit arranged inside the car (1) for braking the car (1) when the car (1) blocks, characterized in that the safety unit comprises: the rail unit (3), the rail unit (3) is mounted on both sides of the guide rail (2), and the guide rail (2) is fixed to the elevator shaft and mounted on both sides of the car (1). The rail unit (3) is used for elevator braking, the rail drive unit (6), the rail drive unit (6) is connected to the rail unit (3), the rail drive unit (6) serves to drive the rail unit (3) closer or away from each other; the main drive unit (7), the main drive unit (7) is connected to the rail drive unit (6), the main drive unit (7) is used to detect the elevator breakage condition, and the main drive unit (7) controls the rail unit (3), moving through the rail drive unit (6) approach or keep away from each other; the manual control device (8), the manual control device (8) is used to manually control the clamping plate drive unit (6), so that the clamping force of the clamping plate unit (3) on the guide rail (2) is gradually reduced to a small amount.

Description

Technical area

The present invention relates to the technical field of elevator safety and, more particularly, to a safety car device for elevator.

State of the art

As urbanization progresses, more and more people are living in buildings. Elevators are a necessary means of transport for high-rise buildings and are used to transport people or goods to a given floor.

Elevator safety equipment is a safety device that will stop the car and tighten it on the steering rail when the elevator has a very serious fault such as over speeding or breaking rope under the control of the overspeed governor. Safe operation offers effective protection.

After the prior art safety equipment clamps the elevator guide rail under the overspeed governor control, the elevator remains in a certain position in the elevator shaft. Rescuers to the rescue, and rescuers get to the elevator position It generally takes a long time. During this time, the passengers in the elevator cannot be helped, which causes panic among the passengers. In addition, the second accident is prone to waiting to be rescued, such as safety devices failing. Therefore we recommend a safe safety cabin device for elevator.

Content of the invention

The technical problem to be solved by the present invention is to provide an elevator safety car device for the above-mentioned deficiencies in order to solve the problem that passengers cannot save themselves when the safety device is locked in the elevator car, the prior art.

In order to achieve the above objects, the present invention provides the following technical solutions: A safety car device for elevator, comprising a car and a safety unit arranged inside the car for braking the car when the car blocks. The safety unit is arranged in the control cabin. The safety unit comprises: a rail unit. The rail unit is mounted on both sides of the guide rail. The guide rail is attached to the elevator shaft and mounted on both sides of the car. The rail unit is used to brake the elevator; the rail drive unit, the rail drive unit is connected to the rail unit, and the rail drive unit is used to drive the rail units to approach or move away from each other. The main drive unit, the main drive unit is connected to the rail drive unit, the main drive unit is used to detect the elevator demolition condition, the main drive unit controls the rail unit through the rail to approach or move away from the drive unit; the manual control is used to manually control the rail drive. The clamping force of the rail unit on the guide rail is gradually reduced.

As another solution of the present invention, the vehicle body is divided into a passenger room and a control room by a partition wall, and an operation cover is provided on the partition wall.

As a further solution of the present invention, the clamping plate unit comprises a clamping plate, a clamping block and a first spring, the clamping block is slidably connected to the clamping plate, the first spring is fitted on the clamping block, and both ends of the first spring are respectively connected to the clamping block . The stopper is in contact with the rail and the first spring is in a compressed state. When the clamping plates are close together, the clamping block is pressed against the guide rail.

As a further aspect of the present invention, the rail drive unit includes a lead screw and a drive rod. The lead screw has two sets of threads with opposite directions of rotation. On the top, a first worm wheel is fixedly connected to the center of the lead screw, the drive rod is mounted on an internal bracket arranged in the vehicle body, and both ends of the drive rod are equipped with a worm, and the worm meshes with the first worm wheel.

As a further solution of the present invention, rods are provided on both sides of the inner bracket and the guide rods are slidably connected to the rail.

As a further solution of the present invention, the inner bracket is further equipped with a roller, the roller is supported on the inner bracket via a bearing, a roller groove is provided on the guide rail, and the roller is superior to the inner bracket. Roller grooves and Guide rails. Both sides of the fixed blades are also provided with fixed blades, and the fixed blades are provided with mounting holes.

As a further solution of the present invention, the manual control unit comprises a second worm wheel and a second worm, the second worm wheel is fixedly connected to the drive rod and the second worm is built into the control cabin. Bearing, so the second worm meshes with the second worm wheel, and the second worm is equipped with a hand wheel.

As a further solution of the present invention, the main drive unit comprises a drive motor, a power supply module and a control module. The drive motor is permanently connected to the drive wheel and the drive rod is permanently connected to the driven wheel. Drive wheel connection; the power supply module comprises a battery and a charging and discharging module. The battery is used to provide power to the main drive unit when the elevator is off. The charge and discharge module is used to intelligently power and charge the battery. The charging and discharging module is electrically connected to the battery and the drive motor; The control module is used to recognize the state of the blocked rotor and to control the switching on and off of the drive motor. The control module contains a microprocessor and an accelerometer.

• 1. Die vorliegende Erfindung kann die Klemmkraft der Schieneneinheit an der Führungsschiene durch die manuelle Steuervorrichtung so steuern, dass sie allmählich verringert wird, so dass der Aufzug langsam hinunter zum Aufzugseingang, Damit Passagiere die Aufzugstür aufhebeln können, um sich zu retten.
• 2. Die vorliegende Erfindung kann das Bremsen des Aufzugs steuern, wenn sich der Aufzug in einem Blockierzustand befindet, verhindern, dass der Aufzug herunterfällt, und kann die Sicherheit der Passagiere wirksam schützen.

In summary, the present invention has the following advantageous effects compared to the prior art:

• 1. The present invention can control the clamping force of the rail unit on the guide rail by the manual control device so that it is gradually decreased so that the elevator slowly descends to the elevator entrance, so that passengers can pry open the elevator door to save themselves.
• 2. The present invention can control braking of the elevator when the elevator is in a blocked state, prevent the elevator from falling, and can effectively protect the safety of passengers.

Figure list

1 is a schematic diagram of the structure of a safety car device for elevator.

2 is a schematic diagram of the structure of the safety unit in the safety car device for elevator.

3 is a schematic diagram of the guide rail in the safety car device for elevator.

Fig. 4 is a schematic diagram of the structure of the clamp plate in the safety car device for elevator.

1

Karosserie,

11

Fahrgastraum,

12

Steuerraum,

13

Außenbügel,

14

Innenbügel,

15

Bediendeckel,

2

Führungsschiene,

21

Rollennut,

22

Festflügel,

3

Schieneneinheit,

31

Schiene,

32

Spannklotz,

33

Kopf Feder,

4

Rollen,

5

Führungsstangen,

6

Splintgetriebe,

61

Schraube,

62

Schneckengetriebe,

63

Getriebestange,

64

Schnecke,

7

Hauptantrieb,

71

Antriebsmotor,

72

Antriebsrad,

73

Antriebsrad,

8

Handsteuergerät,

81

Sekunden-Schneckengetriebe,

82

Sekunden-Schnecke,

83

Handrad.

Information signs:

1

Body,

11th

Passenger compartment,

12th

Control room,

13th

Outside bracket,

14th

Inner bracket,

15th

Control cover,

2

Guide rail,

21

Roller groove,

22nd

Fixed wing,

3

Rail unit,

31

Rail,

32

Tensioning block,

33

Head feather,

4th

Roll,

5

Guide rods,

6th

Split pin gear,

61

Screw,

62

Worm gear,

63

Gear rod,

64

Slug,

7th

Main drive,

71

Drive motor,

72

Drive wheel,

73

Drive wheel,

8th

Hand control device,

81

Second worm gear,

82

Seconds snail,

83

Handwheel.

Embodiment

A clear and complete description of the technical solutions in the embodiments of the present invention is given below in conjunction with the drawings in the embodiments of the present invention. Obviously, the exemplary embodiments described are only a part of the embodiments of the present invention and not all of the embodiments. For example, based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present invention.

• Die Schieneneinheit 3 ist auf beiden Seiten der Führungsschiene 2 angeordnet und die Führungsschiene 2 ist am Aufzugsschacht befestigt und auf beiden Seiten der Kabine 1 angeordnet.
• Die Schieneneinheit 3 dient zum Abbremsen des Aufzugs; wie in der Abbildung gezeigt. Die Spannplatteneinheit 3 umfasst eine Spannplatte 31, einen Spannblock 32 und eine erste Feder 33. Der Spannblock 32 ist gleitend mit der Spannplatte 31 verbunden. Die erste Feder 33 ist an beiden Enden des Spannblocks 32' hülsenförmig Die Federn der ersten Feder 33 stehen mit dem Klemmblock 32 bzw. der Klemmplatte 31 in Kontakt. Die erste Feder 33 befindet sich in einem komprimierten Zustand. Wenn die Klemmplatten 31 nahe beieinander liegen, wird der Klemmblock 32 gegen die Führungsschiene 2 gedrückt und die erste Feder 33 wird weiter komprimiert. Wenn die Klemmkraft des Klemmblocks 32 an der Führungsschiene 2 einen voreingestellten Wert erreicht, kann die Reibung zwischen dem Klemmblock 32 und der Führungsschiene 2 die Fahrzeugkarosserie 1 auf der Führungsschiene 2 fixieren. Wenn die Klemmplatte 31 entfernt wird, aus Sicht der Führungsschiene 2, durch die Wirkung der ersten Feder 33 ist der Spannblock 32 noch auf der Führungsschiene 2 geklemmt. Zu diesem Zeitpunkt ist die Spannkraft des Spannblocks 32 auf der Führungsschiene 2' reduziert, reduziert Die Reibung zwischen dem kleinen Block 32 und der Führungsschiene 2 bewirkt, dass sich die Fahrzeugkarosserie 1 unter der Wirkung der Schwerkraft langsam nach unten bewegt. Wenn sich die Kabine 1 in die Position der Außentür des Aufzugs bewegt, werden die Klemmplatten 31 so gesteuert, dass sie sich wieder annähern. Zu diesem Zeitpunkt fixiert der Klemmblock 32 die Fahrzeugkarosserie 1 wieder auf der Führungsschiene 2 . Zu diesem Zeitpunkt kann der Fahrgast die Tür der Fahrzeugkarosserie 1 aufhebeln; die Schienenantriebseinheit 6, die Schienenantriebseinheit 6 ist mit der Schieneneinheit 3 verbunden, und die Schienenantriebseinheit 6 wird verwendet, um die Schieneneinheit 3 näher aneinander oder voneinander weg anzutreiben.
• Die Klemmplattenantriebseinheit 6 umfasst eine Leitspindel 61 und eine Antriebsstange 63. Die Leitspindel 61 ist mit zwei Gewindesätzen mit entgegengesetzten Drehrichtungen versehen. Die Mitte der Stange 61 ist fest mit dem ersten Schneckenrad 62 verbunden, die Treibstange 63 ist an der inneren Halterung 14 im Kontrollraum 12 installiert, die beiden Enden der Treibstange 63 sind mit einer Schnecke 64 zum Kämmen versehen das erste Schneckenrad 62 , wenn sich die Übertragungsstange 63 dreht, treibt die Übertragungsstange 63 die Schnecke 64 zum Drehen an, und die Schnecke 64 treibt die Schraube 61 zum Drehen an. Wenn sich die Schraube 61 dreht, können die Klemmplatten 31 angetrieben werden, um sich einander anzunähern oder sich voneinander zu entfernen; die Hauptantriebseinheit 7, die mit der Klemmplattenantriebseinheit 6 verbunden ist, die Hauptantriebseinheit 7 wird verwendet, um den Aufzugsabrisszustand zu identifizieren, und die Hauptantriebseinheit 7 steuert die Klemmplatteneinheit 3. In der Nähe oder von jedem entfernt andere durch die Schienenantriebseinheit 6;
• Die Hauptantriebseinheit 7 umfasst einen Antriebsmotor 71, ein Stromversorgungsmodul und ein Steuermodul. Der Antriebsmotor 71 ist fest mit dem Antriebsrad 72 verbunden und die Antriebsstange 63 ist fest mit dem angetriebenen Rad 73 verbunden. Das Antriebsrad 72 und das angetriebenen Rad 73 sind verbunden. Wenn der Antriebsmotor 71 zum Drehen erregt wird, treibt der Antriebsmotor 71 die Antriebsstange 63 an, um sich durch das Antriebsrad 72 und das Abtriebsrad 73 zu drehen;
• Das Netzteil umfasst eine Batterie und eine Lade- und Entladeeinheit. Die Batterie wird verwendet, um die Hauptantriebseinheit 7 mit Strom zu versorgen, wenn der Aufzug keinen Strom hat. Die Lade- und Entladeeinheit dient der intelligenten Stromversorgung und Verstärkung der Batterie. Sie ist elektrisch mit dem Antriebsmotor 71 verbunden. In einigen Beispielen ist die Lade- und Entladeeinheit mit einer Lade- und Entladeschaltung, einer Leistungserfassungsschaltung, einer intelligenten Abschaltschaltung und einer Transformatorschaltung versehen.
• Das Steuermodul wird verwendet, um den Leerlaufzustand zu erkennen und die Aktivierung und Deaktivierung des Antriebsmotors 71 zu steuern. In einigen Beispielen umfasst das Steuermodul einen Mikroprozessor und einen Beschleunigungssensor. Der Beschleunigungssensor wird verwendet, um die Beschleunigung des Aufzugs zu erfassen. Der Mikroprozessor ist elektrisch mit dem Netzteil verbunden, der Mikroprozessor ist elektrisch mit dem Netzteil verbunden. Wenn der Beschleunigungswert den Schwellenwert überschreitet, Wenn der Beschleunigungswert den Schwelle steuert der Mikroprozessor die Stromversorgungseinheit, um dem Motorantrieb 71 Strom zuzuführen, so dass der Antriebsmotor 71 startet.
• Vorzugsweise sind ferner Führungsstangen 5 auf beiden Seiten der inneren Halterung 14 vorgesehen, und die Führungsstangen 5 sind gleitend mit der Schiene 31 verbunden, und die Führungsstangen 5 werden verwendet, um die Schiene 31 am Drehen zu hindern. Die manuelle Steuereinheit 8 dient der manuellen Steuerung der Schienenantriebseinheit 6, damit sich Passagiere bei einem plötzlichen Stopp des Aufzugs retten können.
• Die Handsteuereinheit 8 enthält ein zweites Schneckenrad 81 und eine zweite Schnecke 82. Das zweite Schneckenrad 81 ist fest mit der Antriebsstange 63 verbunden. Die zweite Schnecke 82 ist über ein Lager im Kontrollraum 12 installiert. Die zweite Schnecke 82 kämmt mit dem zweiten Schneckenrad 81, und die zweite Schnecke 82 ist mit einem Handrad 83 versehen. Bei Handbetätigung dreht sich das Handrad 83, das Handrad 83 treibt die zweite Schnecke 82 dreht sich, und die zweite Schnecke 82 dreht sich. Die zweite Schnecke 82 treibt das zweite Schneckenrad 81 zum Drehen an. Das zweite Schneckenrad 81 treibt das Handrad 83 zum Drehen an;
• Wie in gezeigt, ist die Klemmplatte 31 eine flache Platte, ein Ende der Klemmplatte 31 ist mit einem Gewindeloch versehen und das von dem Gewindeloch entfernte Ende der Klemmplatte 31 ist mit einer aufgesetzten Federhülse versehen die Außenseite davon. Die erste Feder 33 weist ein Ende der Federhülse auf. Ein zylindrischer Körper mit einem geschlossenen Ende der Federhülse ist mit einem ersten Durchgangsloch zum Einbau des Klemmblocks 32 versehen. Der Block 32 ist mit einer Gleitstange versehen, die Gleitstange ist in dem ersten Durchgangsloch angeordnet und die Feder 33' ist auf der Gleitstange aufgesteckt. Der Spannblock 32 ist auch mit einem Begrenzungsstift an einem von der Federhülse entfernten Ende der Spannplatte 31 versehen. Der Begrenzungsstift wird verwendet, um zu verhindern, dass sich der Klemmblock 32 von der Klemmplatte 31 löst, und um die erste Feder 33 in einen komprimierten Zustand zu steuern;
• In einigen Beispielen sind das Antriebsrad 72 und das Abtriebsrad 73 beide Zahnräder und der Antriebsmotor 71 und das Antriebsrad 72 kämmen; vorzugsweise wird auch eine Brechstange im Kontrollraum 12 platziert.

As shown in FIG. 1, a safety car device for elevator includes a car 1 and a safety unit that is inside the cabin 1 is arranged to the cabin 1 to brake when the cabin 1 blocked so that the inside of the cabin 1 is in order through a partition in the passenger compartment 11th and the control room 12th is to be separated, there is an operating cover on the partition 15th provided and the safety unit is in the control room 12th arranged. The security unit includes:

• The rail unit 3 is on both sides of the guide rail 2 arranged and the guide rail 2 is attached to the elevator shaft and on both sides of the car 1 arranged.
• The rail unit 3 is used to brake the elevator; as shown in the picture. The clamping plate unit 3 includes a clamping plate 31 , a clamping block 32 and a first spring 33 . The clamping block 32 is sliding with the clamping plate 31 connected. The first feather 33 is sleeve-shaped at both ends of the clamping block 32 'The springs of the first spring 33 stand with the terminal block 32 or the clamping plate 31 in contact. The first feather 33 is in a compressed state. When the clamps 31 are close together, the terminal block 32 against the guide rail 2 pressed and the first spring 33 is further compressed. When the clamping force of the terminal block 32 on the guide rail 2 reaches a preset value, the friction between the terminal block 32 and the guide rail 2 the vehicle body 1 on the guide rail 2 fix. When the clamp 31 is removed from the point of view of the guide rail 2 , by the action of the first spring 33 is the clamping block 32 still on the guide rail 2 clamped. At this point the clamping force is the clamping block 32 reduced on the guide rail 2 ', the friction between the small block reduced 32 and the guide rail 2 causes the vehicle body 1 slowly moving down under the action of gravity. When the cabin 1 Moved to the position of the outer door of the elevator, the clamping plates 31 controlled so that they approach each other again. At this point in time, the terminal block is fixed 32 the vehicle body 1 back on the guide rail 2 . At this time, the passenger can open the door of the vehicle body 1 pry open; the rail drive unit 6th , the rail drive unit 6th is with the rail unit 3 connected, and the rail drive unit 6th is used to make the rail unit 3 closer to or away from each other.
• The clamp drive unit 6th includes a lead screw 61 and a drive rod 63 . The lead screw 61 is provided with two sets of threads with opposite directions of rotation. The middle of the pole 61 is fixed to the first worm wheel 62 connected, the connecting rod 63 is on the inner bracket 14th in the control room 12th installed the two ends of the connecting rod 63 are with a snail 64 provided the first worm wheel for combing 62 when the transmission rod 63 rotates, drives the transmission rod 63 the snail 64 to turn, and the worm 64 drives the screw 61 to turn on. When the screw 61 rotates, the clamping plates can 31 driven to approach or move away from each other; the main propulsion unit 7th that came with the clamp drive unit 6th connected to the main propulsion unit 7th is used to identify the elevator demolition condition and the main drive unit 7th controls the clamp unit 3 . Close to or distant from each other by the rail drive unit 6th ;
• The main propulsion unit 7th includes a drive motor 71 , a power supply module and a control module. The drive motor 71 is fixed to the drive wheel 72 connected and the drive rod 63 is fixed to the driven wheel 73 connected. The drive wheel 72 and the driven wheel 73 are connected. When the drive motor 71 is excited to rotate, drives the drive motor 71 the drive rod 63 to get through the drive wheel 72 and the output gear 73 to rotate;
• The power pack comprises a battery and a charging and discharging unit. The battery is used to power the main propulsion unit 7th to be supplied with power when the elevator has no power. The charging and discharging unit is used for the intelligent power supply and amplification of the battery. It is electric with the drive motor 71 connected. In some examples, the charge and discharge unit is provided with a charge and discharge circuit, a power detection circuit, an intelligent shutdown circuit, and a transformer circuit.
• The control module is used to detect the idle condition and the activation and deactivation of the drive motor 71 to control. In some examples, the control module includes a microprocessor and an acceleration sensor. the Accelerometer is used to detect the acceleration of the elevator. The microprocessor is electrically connected to the power pack, the microprocessor is electrically connected to the power pack. If the acceleration value exceeds the threshold value, If the acceleration value exceeds the threshold, the microprocessor controls the power supply unit to drive the motor 71 Supply electricity so that the drive motor 71 starts.
• Guide rods are also preferred 5 on both sides of the inner bracket 14th provided, and the guide rods 5 are sliding with the rail 31 connected, and the guide rods 5 are used to make the rail 31 to prevent it from turning. The manual control unit 8th is used for manual control of the rail drive unit 6th so that passengers can save themselves if the elevator suddenly stops.
• The hand control unit 8th contains a second worm wheel 81 and a second snail 82 . The second worm wheel 81 is fixed to the actuator stem 63 connected. The second snail 82 is about a warehouse in the control room 12th Installed. The second snail 82 meshes with the second worm wheel 81 , and the second snail 82 is with a hand wheel 83 Mistake. The handwheel rotates when operated manually 83 , the handwheel 83 drives the second snail 82 turns, and the second snail 82 turns. The second snail 82 drives the second worm wheel 81 to turn on. The second worm wheel 81 drives the handwheel 83 to turn on;
• As in shown is the clamping plate 31 a flat plate, one end of the clamp plate 31 is provided with a threaded hole and the end of the clamping plate remote from the threaded hole 31 is provided with an attached spring sleeve on the outside of it. The first feather 33 has one end of the spring sleeve. A cylindrical body with a closed end of the spring sleeve is provided with a first through hole for installing the terminal block 32 Mistake. The block 32 is provided with a slide rod, the slide rod is arranged in the first through hole and the spring 33 'is slipped onto the slide rod. The clamping block 32 is also with a limiting pin at an end of the clamping plate remote from the spring sleeve 31 Mistake. The limit pin is used to prevent the terminal block from moving 32 from the clamp 31 solves, and around the first spring 33 steer to a compressed state;
• In some examples, these are the drive wheel 72 and the output gear 73 both gears and the drive motor 71 and the drive wheel 72 comb; Preferably there is also a crowbar in the control room 12th placed.

As a further embodiment of the present invention there is also a roller 4th on the inner support 14th installed, and the role 4th is on the inner carrier 14th mounted by a bearing. as the picture shows. As in 3 shown is the guide rail 2 with a roller groove 21 provided that role 4th is in the roller groove 21 arranged the two sides of the guide rail 2 are also with fixed wing plates 22nd provided, the fixed wing plates 22nd are provided with mounting holes; the role 4th serves to limit the car body 1 .

In summary, the working principle of the present invention is:

If the elevator is working properly, there is between the terminal block 32 at both ends of the screw 61 on the clamping plate 31 and the guide rail 2 a gap so that no gap between clamping block 32 and guide rail 2 . The roller touches under the effect of friction 4th the roller groove 21 , and the role 4th acts as a limiter for the cabin 1 . In the stall condition, the elevator acceleration exceeds the preset acceleration. At this point in time, the acceleration value detected by the acceleration sensor exceeds the threshold value, and the microprocessor controls the power supply module for the drive motor 71 to provide power to the drive motor 71 is energized to rotate and the drive motor 71 drives the drive rod to 63 to move through the drive wheel 72 and the driven wheel 73 to rotate, and the drive rod 63 drives the wire 61 to get yourself through the snail 64 and the first worm wheel 62 to turn, and the screw 61 rotates to the clamping plate 31 to drive yourself to the rest of the world. The clamping plate 31 clamps the tensioning block 32 on the guide rail 2 . When clamping the clamping block 32 on the guide rail 2 brakes the frictional force between the clamping block 32 and the guide rail 2 the vehicle body 1 . Braking the vehicle body 1 to zero, reducing the car body 1 on the guide rail 2 is attached;

When the passenger saves himself, the passenger opens the operation cover 15th and turns the handwheel 83 that the second snail 82 drives to rotate. The second snail 82 drives the drive rod 63 through the second worm wheel 81 in the reverse direction. When the drive rod 63 rotates in the reverse direction, the clamping plates move 31 away from each other. At this point the terminal block 32 due to the action of the first spring 33 still on the guide rail 2 clamped, and the clamping force of the clamping block 32 on the guide rail 2 is slowly decreased. The friction between the two slowly decreases and so does the body 1 slowly slides down under the action of gravity. When the cabin 1 the handwheel turns 83 in the opposite direction, the clamping plates 31 can approach each other and the terminal block 32 is on the guide rail 2 clamped 1 is on the guide rail 2 and the passengers can use a lever to pry the elevator door open with a stick.

While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that these embodiments can be embodied in various ways without departing from the principle and spirit of the present invention. Variations, modifications, substitutions and variations, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

Safety car device for elevator, comprising a car (1) and a safety unit arranged inside the car (1) for braking the car (1) when the car (1) blocks, characterized in that the safety unit comprises: the rail unit (3), the rail unit (3) is mounted on both sides of the guide rail (2) and the guide rail (2) is attached to the elevator shaft and mounted on both sides of the car (1). The rail unit (3) is used for elevator braking, the rail drive unit (6), the rail drive unit (6) is connected to the rail unit (3), the rail drive unit (6) is used to drive the rail unit (3) closer to or away from each other; the main drive unit (7), the main drive unit (7) is connected to the rail drive unit (6), the main drive unit (7) is used to detect the elevator demolition condition and the main drive unit (7) controls the rail unit (3) itself through the rail drive unit (6) to approach or keep away from one another; the hand control device (8), the hand control device (8) is used to manually control the clamping plate drive unit (6) so that the clamping force of the clamping plate unit (3) on the guide rail (2) is gradually reduced to a small amount. Safety cabin device for elevator according to Claim 1 , characterized in that the cabin (1) is divided by a partition into a passenger compartment (11) and a control room (12) and the partition is provided with an operating cover (15). Safety cabin device for elevator according to Claim 1 , characterized in that the clamping plate unit (3) comprises a clamping plate (31), a clamping block (32) and a first spring (33). The first spring (33) is slidably connected to the clamp plate (31). The first spring (33) is pushed onto the clamping block (32) and both ends of the first spring (33) rest on the clamping block (32) and the clamping plate. Board of Directors (31). The spring (33) is in a compressed state, and the clamping plate (31) presses the clamping block (32) against the guide rail (2) when they lie against one another. Safety cabin device for elevator according to Claim 3 , characterized in that the rail drive unit (6) comprises a lead screw (61) and a drive rod (63) and the lead screw (61) is provided with two rotating shafts. The thread is opposite, the two ends of the lead screw (61) are mounted on the outer console (13) in the control room (12) and the first worm wheel (62) is firmly connected in the middle of the control room (12). The lead screw (61) and the drive rod (63) are mounted on the inner bracket (14) within the body (1). Both ends of the drive rod (63) mesh with a worm (64), a worm (64) and a first worm wheel (62). Safety cabin device for elevator according to Claim 4 , characterized in that guide rods (5) are also provided on both sides of the inner bracket (14) and the guide rods (5) are connected to the rail (31) in a sliding manner. Safety cabin device for elevator according to Claim 4 , characterized in that a roller (4) is also attached to the inner bracket (14) and the roller (4) is mounted on the inner bracket (14) via a bearing. The guide rail (2) is provided with a roller groove (21), the roller (4) is installed in the roller groove (21) and both sides of the guide rail (2) are also provided with fixed wings (22) and fixed wings (22) ) There are mounting holes on it. Safety cabin device for elevator according to Claim 4 , characterized in that the manual control unit (8) comprises a second worm gear (81) and a second worm (82). The second worm gear (81) is firmly connected to the drive rod (63), the second worm (82) is installed in the control room (12) via a bearing and the second worm (82) is connected to the Engage the second worm gear (81). The second worm (82) is provided with a handwheel (83). Safety cabin device for elevator according to one of the Claims 3 - 7th , wherein the main drive unit (7) comprises a drive motor (71), a power supply module and a control module, and the drive motor (71) is firmly connected to the drive wheel (72), the drive rod (63) is firmly connected to the driven wheel (73) and the drive gear (72) is connected to the driven gear (73). The power supply module comprises a battery and a charging and discharging module. The battery is used to power the main drive unit (7) when the elevator is switched off. The charging and discharging module provides an intelligent power supply and boosts the battery. The charging and discharging module as well as the battery and the drive motor (71) Electrical connection; that the control module is used to detect the blocked rotor state and to control the switching on and off of the drive motor (71). The control module contains a microprocessor and an accelerometer.

Images