CN203382331U

CN203382331U - Anti-falling elevator protector

Info

Publication number: CN203382331U
Application number: CN201320512093.7U
Authority: CN
Inventors: 魏伯卿
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-22
Filing date: 2013-08-22
Publication date: 2014-01-08
Anticipated expiration: 2023-08-22

Abstract

The utility model discloses an anti-falling elevator protector. The anti-falling elevator protector comprises eight gear guide rails which are installed nearby the four corners of an elevator channel and provided with gear teeth and eight gears which are matched with the gear guide rails and connected with an elevator car. A rotating shaft is arranged between the two gears of each side of the elevator car and fixedly connected with the gears. Each rotating shaft is provided with a centrifugal speed limiting device and two rotating locators. The anti-falling elevator protector is characterized in that the same rotating shaft is driven to rotate through rotation of the two gears on the same side of the elevator car, a rotating shaft pinion on the centrifugal limiting device installed on the same rotating shaft is driven to rotate, a centrifugal shaft gear is driven to rotate with a centrifugal shaft, a centrifugal arm and a centrifugal shaft conical limiting body through engagement of the rotating shaft pinion, when the rotating shaft rotates and reaches a set rotating speed, the centrifugal arm stretches to the outer centrifugal arm braking surface and makes contact with the inner braking surface of a braking sleeve, under the action of centrifugal force, the rotating speed of the centrifugal arm is reduced, and therefore the speed of the rotating shaft and the speed of the elevator car are reduced.

Description

The elevator fall protector

Technical field

The present invention relates to the elevator fall protector, be applicable to the fall arrest protection of all elevators, belong to the elevator safety technical field.

Background technology

We often can listen/see the report of relevant used during elevator falling accident, and this illustrates that modern elevator does not also have one can carry out to elevator the resist technology of fall arrest.

Summary of the invention

The purpose of this invention is to provide and a kind ofly can carry out speed-limiting protection to prevent the elevator fall protector of falling from high altitude to elevator.

The elevator fall protector, comprise that eight are arranged near the gear guide with the gear teeth in four angles of access to elevators, with eight gears that are complementary with gear guide and be connected with the elevator case, in the middle of two gears of the every side of elevator case, a rotating shaft be fixedly connected with gear is arranged, a centrifugal speed-limit device and two rotating shaft steady arms are installed in every rotating shaft; It is characterized in that:

1, the gear guide of the eight band gear teeth is arranged on respectively near four angles of elevator case, corresponding one of each gear guide can mesh the gear rotated on the gear teeth of gear guide, elevator case same side is that two gears corresponding to two gear guide of access to elevators same side are fixedly connected with a rotating shaft, two gears rotate and drive same rotating shaft rotation, and the rotation of the rotating shaft pinion on a centrifugal speed-limit device of installing in the drive rotating shaft, the engagement of rotating shaft pinion drives centrifugal shaft gear and centrifugal shaft, centrifuge arm, centrifugal shaft conical limit body rotates together, centrifuge arm in rotary course because of centrifugal action, one end of centrifuge arm opens around the centrifuge arm fixed rotating shaft of the centrifuge arm fixed end of the centrifuge arm other end at leisure, when the rotating shaft rotation reaches the rotating speed of setting, centrifuge arm touches brake lining in the brake cover because of the outer brake lining of centrifuge arm that the effect of centnifugal force opens up on the centrifuge arm brake shoes of the centrifuge arm other end relative with the centrifuge arm fixed rotating shaft centrifuge arm, and the rotation of centrifuge arm is slowed down, thereby driving rotating shaft slows down, and then driven gear slows down, the safety that finally realizes the elevator case is slowed down, be fixed in the outer wall of elevator case with the brake cover of brake lining in the brake cover.

2, rotating shaft is freely rotated through the bearing of rotating shaft steady arm neck bearing jacket, the bearing jacket is equipped with two sliding bars near elevator case one side, the other end of sliding bar is enclosed within the bracket holes be fixed on the elevator box outer wall, sliding bar periphery cover between support and bearing jacket has a spring, the interaction energy of spring makes the elevator case under the vibrations condition, guarantees that gear and gear guide mesh all the time.

The present invention compared with prior art has the following advantages:

1, the outer centrifugal speed-limit device of elevator case can be preferably when setting the descending speed of elevator and surpass preset value, elevator is automatically by brake deceleration, thereby can prevent preferably the contingency of elevator tenesmus.

2, add gear guide to access to elevators, and moved up and down by eight gear engagements of elevator case surrounding, can make elevator move up and down more steady.

The accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 be embodiment illustrated in fig. 1 in centrifugal speed-limit device enlarged diagram;

Fig. 3 is shaft steady arm enlarged diagram embodiment illustrated in fig. 1;

Fig. 4 is middle A-A generalized section embodiment illustrated in fig. 2.

In Fig. 1-4: 1, gear guide 2, gear 3, access to elevators 4, rotating shaft 5, elevator door 6, centrifugal speed-limit device 7, elevator case 8, rotating shaft steady arm 9, gear tooth 10, the guide rail gear teeth 11, rotating shaft pinion 12, centrifugal shaft gear 13, centrifugal shaft 14, centrifuge arm 15, centrifugal shaft conical limit body 16, brake lining 17 in the brake cover, the outer brake lining 18 of centrifuge arm, brake cover 19, centrifuge arm fixed rotating shaft 20, support 21, spring 22, sliding bar 23, bearing 24, bearing jacket 25, position-limited trough 26, the centrifuge arm brake shoes.

The specific embodiment

In the embodiment shown in Fig. 1-4: the elevator fall protector, comprise that eight are arranged near the gear guide with the gear teeth 1 in 3 four angles of access to elevators, with eight gears 2 that be complementary with gear guide 1 and that be connected with elevator case 7, in the middle of two gears 2 of elevator case 7 every sides, a rotating shaft 4 be fixedly connected with gear 2 is arranged, a centrifugal speed-limit device 6 and two rotating shaft steady arms 8 are installed in every rotating shaft 4; It is characterized in that:

The gear guide 1 of the eight band gear teeth is arranged on respectively near four angles of elevator case 7, corresponding one of each gear guide 1 can mesh the gear 2 rotated on the gear teeth of gear guide 1, elevator case 7 same sides are that two gears 2 of two gear guide 1 correspondences of access to elevators 3 same sides are fixedly connected with a rotating shaft 4, two gears 2 rotate and drive same rotating shaft 4 rotations, and the rotating shaft pinion 11 driven on a centrifugal speed-limit device 6 of installing in rotating shaft 4 rotates, 11 engagements of rotating shaft pinion drive centrifugal shaft gear 12 and centrifugal shaft 13, centrifuge arm 14, centrifugal shaft conical limit body 15 rotates together, centrifuge arm 14 in rotary course because of centrifugal action, one end of centrifuge arm 14 opens around the centrifuge arm fixed rotating shaft 19 of centrifuge arm 14 fixed ends of centrifuge arm 14 other ends at leisure, when rotating shaft 4 rotations reach the rotating speed of setting, centrifuge arm 14 touches brake lining 16 in the brake cover because of the outer brake lining 17 of centrifuge arm that the effect of centnifugal force opens up on the centrifuge arm brake shoes 26 of centrifuge arm 14 other ends relative with centrifuge arm fixed rotating shaft 19 centrifuge arm 14, and the rotation of centrifuge arm 14 is slowed down, thereby driving rotating shaft 4 slows down, and then driven gear 2 slows down, finally realize the deceleration of elevator case 7, be fixed in the outer wall of elevator case 7 with the brake cover 18 of brake lining 16 in the brake cover.

Rotating shaft 4 is freely rotated through the bearing 23 of rotating shaft steady arm 8 neck bearing jackets 24, bearing jacket 24 is equipped with two sliding bars 22 near elevator case 7 one sides, the other end of sliding bar 22 is enclosed within support 20 holes of being fixed on elevator case 7 outer walls, sliding bar 22 periphery covers between support 20 and bearing jacket 24 have a spring 21, the interaction energy of spring 21 makes elevator case 7 under the vibrations condition, guarantees that gear 2 and gear guide 1 mesh all the time.

Claims

1. elevator fall protector, comprise that eight are arranged near the gear guide with the gear teeth (1) in (3) four angles of access to elevators, with eight gears (2) that are complementary with gear guide (1) and be connected with elevator case (7), in the middle of two gears (2) of the every side of elevator case (7), a rotating shaft (4) be fixedly connected with gear (2) is arranged, a centrifugal speed-limit device (6) and two rotating shaft steady arms (8) are installed in every rotating shaft (4), it is characterized in that: the gear guide of the eight band gear teeth (1) is arranged on respectively near four angles of elevator case (7), corresponding one of each gear guide (1) can mesh the gear (2) rotated on the gear teeth of gear guide (1), elevator case (7) same side is that two gears (2) corresponding to two gear guide (1) of access to elevators (3) same side are fixedly connected with a rotating shaft (4), two gears (2) rotate and drive same rotating shaft (4) rotation, and the rotating shaft pinion (11) driven on the upper centrifugal speed-limit device (6) of installing of rotating shaft (4) rotates, rotating shaft pinion (11) engagement drives centrifugal shaft gear (12) and centrifugal shaft (13), centrifuge arm (14), centrifugal shaft conical limit body (15) rotates together, centrifuge arm (14) in rotary course because of centrifugal action, one end of centrifuge arm (14) opens around the centrifuge arm fixed rotating shaft (19) of centrifuge arm (14) fixed end of centrifuge arm (14) other end at leisure, when rotating shaft (4) rotation reaches the rotating speed of setting, centrifuge arm (14) touches brake lining (16) in the brake cover because of the outer brake lining (17) of centrifuge arm that the effect of centnifugal force opens up on the centrifuge arm brake shoes (26) of centrifuge arm (14) other end relative with centrifuge arm fixed rotating shaft (19) centrifuge arm (14), and the rotation of centrifuge arm (14) is slowed down, thereby driving rotating shaft (4) slows down, and then driven gear (2) slows down, the safety that finally realizes elevator case (7) is slowed down.