CN113979258A

CN113979258A - Protection device for elevator well

Info

Publication number: CN113979258A
Application number: CN202111241610.7A
Authority: CN
Inventors: 张照琨; 王其庆; 刘家恺; 韩阳; 王敬德; 窦忠平
Original assignee: Hebei Electric Power Engineering Supervision Co ltd; State Grid Corp of China SGCC; Construction Branch of State Grid Hebei Electric Power Co Ltd
Current assignee: Hebei Electric Power Engineering Supervision Co ltd; State Grid Corp of China SGCC; Construction Branch of State Grid Hebei Electric Power Co Ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-01-28
Anticipated expiration: 2041-10-25
Also published as: CN113979258B

Abstract

The invention discloses a protective device for an elevator well, which comprises a well main body, wherein a hoisting machine is arranged above the well main body, a car is arranged in the well main body, the upper part of the car is fixedly connected with a rope, a starting support rod is arranged below one side of the car close to a leveling sensor, and a protective mechanism is arranged at the intersection of the lower part of the starting support rod and the well main body, the user is prevented from falling below the hoistway body.

Description

Protection device for elevator well

Technical Field

The invention belongs to the technical field of elevator equipment, and particularly relates to a protective device for an elevator hoistway.

Background

The elevator shaft is a shaft for installing an elevator, the size of the shaft is determined according to the type selection of the elevator, an elevator track and a counterweight track are installed on the wall of the shaft, an elevator door is installed in a reserved door opening, and an elevator machine room is arranged at the top of the shaft.

An elevator is a vertical elevator powered by an electric motor and equipped with a box-like car for carrying people or cargo in a multi-story building. There are also steps, where the tread plates are mounted on a track for continuous operation, commonly known as escalators or moving walkways. A fixed elevator apparatus serving a predetermined floor. A vertical lift elevator has a car that travels between at least two vertical rows of rigid guide rails.

The existing elevator shaft is generally not provided with better protection measures, if the elevator door breaks down, a user can fall into the elevator shaft through the elevator door, if the elevator door does not break down, the user can be greatly injured, and the safety accident can be caused in serious cases.

Disclosure of Invention

The invention aims to solve the problems in the background art and provides a protective device for an elevator shaft.

The technical scheme adopted by the invention is as follows:

a protection device for an elevator well comprises a well main body, wherein a hoisting machine is arranged above the well main body, a lift car is arranged inside the well main body, and the upper part of the lift car is fixedly connected with a rope;

a starting support rod is arranged below one side, close to the leveling sensor, of the car, and a protection mechanism is arranged at the intersection of the lower part of the starting support rod and the well main body;

protection machanism installs drive mechanism with crossing department of well main part, protection machanism comprises spacing dish, frame, first pulley and protection network, first pulley mounting is in the top of frame, first pulley adopts bolt fixed connection with the frame, the protection network is established inside the frame, the below at the frame is installed to spacing dish, spacing dish is fixed for spot welding with the connected mode of frame.

The transmission mechanism is composed of a limiting rod, a fixed disc, a cylinder assembly and a transmission shaft, wherein the transmission shaft is arranged inside the cylinder assembly, sealing shafts are arranged at the intersection parts of the two ends of the transmission shaft and the cylinder assembly, the fixed disc is arranged at one end of the cylinder assembly and is of a disc-shaped structure, a plurality of screw rods are arranged on one side, close to the cylinder assembly, of the fixed disc along the circumferential direction of the fixed disc, the limiting rod is arranged at one end, close to the fixed disc, of the transmission shaft, and the limiting rod is fixed with the transmission shaft in a spot welding mode.

Preferably, start branch comprises second pulley, first connecting plate, connecting piece, first reset spring, fastener and horizontal pole, the connecting piece is installed in one side of first connecting plate, first reset spring installs the below at first connecting plate, the below at first reset spring is installed to the horizontal pole, the crossing department at horizontal pole and first reset spring is installed to the fastener, the one end that the fastener was kept away from at the horizontal pole is installed to the second pulley.

Preferably, spacing dish is inside hollow cylinder structure, the inside a week of spacing dish is equipped with the spacing draw-in groove of a plurality of, and the degree of depth of spacing draw-in groove is less than the thickness of spacing dish, the gag lever post is the cylinder structure, a plurality of card strip is installed in the outside of gag lever post, and the size of card strip is the same with the size of the inside spacing draw-in groove of spacing dish.

Preferably, drive mechanism and control box electric connection, the crossing department of drive mechanism and protection machanism installs the fixing base, the state of fixed connection between drive mechanism, protection machanism and the fixing base three is the structure of L type.

Preferably, the fixing seat is composed of a second return spring and a second connecting plate, the second connecting plate is installed above the second return spring, and two ends of the second return spring are respectively inserted into the second connecting plate and the limiting disc.

Preferably, the width of the second pulley is greater than that of the cross rod, a support is installed at the intersection of the second pulley and the cross rod, and the support is of a C-shaped structure.

Preferably, the starting support rod is electrically connected with the transmission mechanism, the transmission mechanism is switched on by the starting support rod in the downward moving process to present a stroke motion state, and the transmission mechanism is switched off by the starting support rod in the resetting process to present a return motion state.

Preferably, the rope has been cup jointed in the outside of lifting machine, the control box is installed to one side of lifting machine, lifting machine and control box electric connection, two lines of guide pulleys are respectively installed to the both sides of car, two tracks are respectively installed with the crossing department of well main part to the guide pulley, flat bed sensor is installed to car top one side, flat bed sensor and control box electric connection.

Preferably, the protection mechanism is provided with two altogether, two the protection mechanism tiling is in the inside of well main part, two the size of protection mechanism after the tiling is the same with the cross-sectional dimension of well main part.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the elevator protection device, the protection mechanism is arranged inside the elevator shaft and close to the lower side of the elevator door, the fixed seat and the transmission mechanism are arranged at the intersection of the protection mechanism and the shaft main body, and the transmission mechanism is electrically connected with the starting support rod, so that the protection mechanism can be controlled to open and close through the transmission mechanism, if a user falls through the elevator door due to improper operation, the protection mechanism can play a bearing role under the action of the protection mechanism, and the user is prevented from falling below the shaft main body.

2. When the lift car and the starting support rod are contacted with each other, the starting support rod drives the transmission mechanism to operate, so that the limiting rod in the transmission mechanism is separated from the limiting disc in the protection mechanism, and the lift car is contacted with the protection mechanisms on two sides in the hoistway main body in the descending process, so that the protection mechanism is opened, and the operation of the lift car is not hindered.

3. When the lift car runs below the protection mechanism, the starting support rod returns under the action of the first return spring, so that the transmission mechanism makes return motion, and meanwhile, the protection mechanism makes return motion under the action of the second return spring, so that the limiting rod in the transmission mechanism is in contact with the limiting disc in the protection mechanism, and the protection mechanism is fixed tightly.

4. According to the invention, the first pulley is arranged on one side of the protection mechanism, which is far away from the hoistway main body, so that when the first pulley is contacted with the car, the friction noise between the protection mechanism and the car can be reduced.

5. According to the invention, the size of the limiting disc in the protection mechanism is the same as that of the limiting rod in the transmission mechanism, so that the limiting rod in the transmission mechanism and the limiting disc in the protection mechanism are mutually inserted, and the limiting effect on the protection mechanism can be realized under the action of the transmission mechanism.

6. In the invention, the second pulley is arranged on one side of the starting support rod close to the car, so that when the second pulley is contacted with the car, the friction noise between the starting support rod and the car can be reduced

Drawings

Fig. 1 is a schematic cross-sectional view of a protective device for an elevator shaft according to the present invention;

FIG. 2 is an enlarged top view of the shielding mechanism of the present invention;

FIG. 3 is an enlarged view of the transmission mechanism of the present invention;

FIG. 4 is a schematic cross-sectional view of a stop lever according to the present invention;

FIG. 5 is a schematic cross-sectional view of the shielding mechanism of the present invention;

FIG. 6 is a schematic cross-sectional view of a spacing disk according to the present invention;

FIG. 7 is a schematic side view of the actuating strut of the present invention;

fig. 8 is a schematic sectional view of the fixing base of the present invention.

The labels in the figure are: 1. a track; 2. a car; 3. a guide wheel; 4. a hoistway body; 5. a transmission mechanism; 51. a limiting rod; 52. fixing the disc; 53. a cylinder assembly; 54. a drive shaft; 6. a protection mechanism; 61. a limiting disc; 62. a frame; 63. a first pulley; 64. a protective net; 7. starting the supporting rod; 71. a second pulley; 72. a first connecting plate; 73. a connecting member; 74. a first return spring; 75. a fastener; 76. a cross bar; 8. a fixed seat; 81. a second return spring; 82. a second connecting plate; 9. a leveling sensor; 10. a control box; 11. a hoist; 12. a rope.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[ example 1 ]

As shown in fig. 1 and 6, a protection device for an elevator shaft comprises a shaft main body 4, a hoisting machine 11 is arranged above the shaft main body 4, a car 2 is arranged in the shaft main body 4, and the upper part of the car 2 is fixedly connected with a rope 12;

a starting support rod 7 is arranged below one side of the car 2 close to the leveling sensor 9, and a protection mechanism 6 is arranged at the intersection of the lower part of the starting support rod 7 and the hoistway main body 4;

the transmission mechanism 5 is installed at the intersection of the protection mechanism 6 and the hoistway body 4, the protection mechanism 6 is composed of a limiting disc 61, a frame 62, a first pulley 63 and a protective net 64, the first pulley 63 is installed above the frame 62, the first pulley 63 is fixedly connected with the frame 62 through bolts, the protective net 64 is arranged inside the frame 62, the limiting disc 61 is installed below the frame 62, and the limiting disc 61 is fixed with the frame 62 through spot welding.

During the specific use, when car 2 and start branch 7 when contact each other, start branch 7 and drive 5 operations of drive mechanism, the inside gag lever post 51 of drive mechanism 5 separates from the inside spacing dish 61 of protection machanism 6 like this, and car 2 contacts each other with the protection machanism 6 of the inside both sides of well main part 4 at the in-process that descends to make protection machanism 6 open, can not produce the hindrance to car 2's operation.

When the car 2 moves below the protection mechanism 6, the starting support rod 7 returns under the action of the first return spring 74, so that the transmission mechanism 5 makes return motion, and meanwhile, the protection mechanism 6 makes return motion under the action of the second return spring 81, so that the limiting rod 51 in the transmission mechanism 5 and the limiting disc 61 in the protection mechanism 6 are in contact with each other, and the protection mechanism 6 is fixed tightly.

[ example 2 ]

As shown in fig. 3, the transmission mechanism 5 is composed of a limiting rod 51, a fixed disk 52, a cylinder assembly 53 and a transmission shaft 54, the transmission shaft 54 is arranged inside the cylinder assembly 53, sealing shafts are arranged at the intersection of the transmission shaft 54 and the two ends of the cylinder assembly 53, the fixed disk 52 is arranged at one end of the cylinder assembly 53, the fixed disk 52 is of a disc-shaped structure, a plurality of screw rods are arranged on one side of the fixed disk 52 close to the cylinder assembly 53 along the circumferential direction of the fixed disk 52, the limiting rod 51 is arranged at one end of the transmission shaft 54 close to the fixed disk 52, and the connecting mode of the limiting rod 51 and the transmission shaft 54 is fixed by spot welding.

During the specific use, when drive mechanism 5 switch on, cylinder assembly 53 drives transmission shaft 54 at this moment and moves for transmission shaft 54 drives gag lever post 51 motion, thereby can make gag lever post 51 and spacing dish 61 separation, can make protection machanism 6 lose spacing effect like this.

[ example 3 ]

As shown in fig. 7, the actuating rod 7 is composed of a second pulley 71, a first connecting plate 72, a connecting member 73, a first return spring 74, a fastener 75 and a cross bar 76, wherein the connecting member 73 is installed at one side of the first connecting plate 72, the first return spring 74 is installed below the first connecting plate 72, the cross bar 76 is installed below the first return spring 74, the fastener 75 is installed at the intersection of the cross bar 76 and the first return spring 74, and the second pulley 71 is installed at one end of the cross bar 76 away from the fastener 75.

When the car 2 and the starting support rod 7 are separated from each other, when the first return spring 74 does not have the downward pressing acting force, the first return spring 74 rebounds to restore the starting support rod 7 to the original position.

[ example 4 ]

As shown in fig. 5 and 6, the limiting disc 61 is a hollow cylinder structure, a plurality of limiting clamping grooves are arranged around the inside of the limiting disc 61, the depth of each limiting clamping groove is smaller than the thickness of the limiting disc 61, the limiting rod 51 is a cylinder structure, a plurality of clamping strips are arranged on the outer side of the limiting rod 51, and the clamping strips are the same as the limiting clamping grooves in the limiting disc 61.

When the limiting device is used specifically, the clamping strips inside the limiting rod 51 are connected with the limiting clamping grooves inside the limiting disc 61, so that the limiting rod 51 and the limiting disc 61 are under the action of the transmission mechanism 5 and the protection mechanism 6 to achieve limiting effect.

[ example 5 ]

As shown in fig. 2, the transmission mechanism 5 is electrically connected to the control box 10, the fixing seat 8 is installed at the intersection of the transmission mechanism 5 and the protection mechanism 6, and the transmission mechanism 5, the protection mechanism 6 and the fixing seat 8 are all in an L-shaped structure.

During specific use, under the effect of the fixing seat 8, the transmission mechanism 5 and the protection mechanism 6 can be fixedly installed more stably.

[ example 6 ]

As shown in fig. 8, the fixing base 8 is composed of a second return spring 81 and a second connecting plate 82, the second connecting plate 82 is installed above the second return spring 81, and two ends of the second return spring 81 are respectively inserted into the second connecting plate 82 and the limiting plate 61.

When the protection mechanism 6 is rotated downward, the second return spring 81 inside the fixed seat 8 accumulates energy when the protection mechanism 6 rotates downward, and when the protection mechanism 6 does not have the downward pressing force, the protection mechanism 6 is restored to the original position under the resilience of the second return spring 81.

[ example 7 ]

As shown in fig. 7, the width of the second pulley 71 is greater than the width of the cross bar 76, and a bracket is mounted at the intersection of the second pulley 71 and the cross bar 76, and the bracket is in a C-shaped structure.

When the bracket is used specifically, the second pulley 71 and the cross rod 76 are fixed tightly under the action of the bracket, so that the phenomenon that the second pulley 71 falls off when rotating can be avoided.

[ example 8 ]

As shown in fig. 1, the starting rod 7 is electrically connected to the transmission mechanism 5, the starting rod 7 switches the transmission mechanism 5 on to provide a stroke motion state in the downward movement process, and the starting rod 7 switches the transmission mechanism 5 off to provide a return motion state in the resetting process.

During the specific use, start branch 7 when the downward rotation, 5 switch on power supplies of drive mechanism for 5 inside gag lever post 51 of drive mechanism and 6 inside spacing dishes 61 alternate segregation of safeguard mechanism, make safeguard mechanism 6 lose spacing effect, when starting branch 7 upwards rotatory, drive mechanism cuts off the power supply, make 5 inside gag lever post 51 of drive mechanism and 6 inside spacing dishes 61 of safeguard mechanism contact each other, make safeguard mechanism 6 obtain spacing effect.

[ example 9 ]

As shown in fig. 1, a rope 12 is sleeved on the outer side of a hoist 11, a control box 10 is installed on one side of the hoist 11, the hoist 11 is electrically connected with the control box 10, two rows of guide wheels 3 are installed on two sides of a car 2, two rows of rails 1 are installed at the intersection of the guide wheels 3 and a hoistway main body 4, a leveling sensor 9 is installed on one side above the car 2, and the leveling sensor 9 is electrically connected with the control box 10.

In particular, the car 2 can be stopped at a proper position under the action of the leveling sensor 9.

[ example 10 ]

As shown in fig. 1, two guard mechanisms 6 are provided, the two guard mechanisms 6 are laid flat inside the hoistway body 4, and the dimensions of the two guard mechanisms 6 after being laid flat are the same as the dimensions of the cross section of the hoistway body 4.

During the specific use, make the cross section of well main part 4 can tile completely like this under two protection machanism 6's of tiling effect, protection machanism 6 can play better accepting effect to the article that the top falls like this, avoids appearing that article fall into the bottom of well main part 4.

The working principle is as follows: when the elevator structure has errors, when a user falls into the hoistway main body 4 through the elevator door, the user can be received under the action of the protection mechanism 6, the user is prevented from falling below the hoistway main body 4, and therefore the use safety of the hoistway main body 4 can be improved.

And when the car 2 normally operates, under the action of the leveling sensor 9, the car 2 stays at the corresponding position of the elevator door, at this time, the car 2 does not contact with the starting support rod 7, so that the protection mechanism 6 cannot be opened, when the car 2 moves downwards continuously, the car 2 contacts with the starting support rod 7, under the action of the car 2, the starting support rod 7 switches on the power supply of the transmission mechanism 5 when the starting support rod 7 rotates by taking the hoistway main body 4 as the support rod, so that the cylinder component 53 in the transmission mechanism 5 drives the transmission shaft 54 to move, the transmission shaft 54 enables the limiting rod 51 to be separated from the limiting disc 61 in the protection mechanism 6, and thus the transmission mechanism 5 can be separated from the protection mechanism 6.

When the car 2 moves downwards continuously, the car 2 contacts with the protection mechanism 6, under the action of the car 2, the protection mechanism 6 rotates around the shaft main body 4, and the first pulley 63 inside the protection mechanism 6 contacts with the car 2, so that the phenomenon that the car 2 generates large noise due to large friction caused by the protection mechanism 6 can be avoided, and the second pulley 71 is installed on one side of the starting support rod 7 close to the car 2, so that the car 2 can better reduce noise under the action of the first pulley 63 and the second pulley 71 in operation.

When the car 2 runs below the protection mechanism 6, the car 2 is not in contact with the starting support rod 7, the starting support rod 7 returns under the action of the first reset spring 74, the transmission mechanism 5 is powered on and does return motion, meanwhile, the protection mechanism 6 does return motion under the action of the second reset spring 81, the limiting rod 51 inside the transmission mechanism 5 is in contact with the limiting disc 61 inside the protection mechanism 6, the protection mechanisms 6 on two sides inside the hoistway main body 4 are flatly laid and fixed tightly, and if an accident happens, a user can accept the protection mechanisms 6.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A protector for elevator well, includes well main part (4), its characterized in that: a hoisting machine (11) is installed above the hoistway main body (4), a car (2) is installed inside the hoistway main body (4), and the upper part of the car (2) is fixedly connected with a rope (12);

a starting support rod (7) is installed below one side, close to the leveling sensor (9), of the car (2), and a protection mechanism (6) is installed at the intersection of the lower portion of the starting support rod (7) and the well main body (4);

protection machanism (6) install drive mechanism (5) with the crossing department of well main part (4), protection machanism (6) comprise spacing dish (61), frame (62), first pulley (63) and protection network (64), the top at frame (62) is installed in first pulley (63), bolt fixed connection is adopted with frame (62) in first pulley (63), inside frame (62) is established in protection network (64), the below at frame (62) is installed in spacing dish (61), spacing dish (61) is fixed for spot welding with the connected mode of frame (62).

2. The protective device for an elevator shaft according to claim 1, wherein: the transmission mechanism (5) is composed of a limiting rod (51), a fixed disc (52), a cylinder assembly (53) and a transmission shaft (54), the transmission shaft (54) is arranged inside the cylinder assembly (53), sealing shafts are arranged at the intersection positions of the two ends of the transmission shaft (54) and the cylinder assembly (53), the fixed disc (52) is arranged at one end of the cylinder assembly (53), the fixed disc (52) is of a disc-shaped structure, a plurality of screw rods are arranged on one side, close to the cylinder assembly (53), of the fixed disc (52) in the circumferential direction of the fixed disc (52), the limiting rod (51) is arranged at one end, close to the fixed disc (52), of the transmission shaft (54), and the limiting rod (51) and the transmission shaft (54) are fixed in a spot welding mode.

3. The protective device for an elevator shaft according to claim 1, wherein: the starting support rod (7) is composed of a second pulley (71), a first connecting plate (72), a connecting piece (73), a first return spring (74), a fastener (75) and a cross rod (76), the connecting piece (73) is installed on one side of the first connecting plate (72), the first return spring (74) is installed below the first connecting plate (72), the cross rod (76) is installed below the first return spring (74), the fastener (75) is installed at the intersection of the cross rod (76) and the first return spring (74), and the second pulley (71) is installed at one end, far away from the fastener (75), of the cross rod (76).

4. The protective device for an elevator shaft according to claim 1, wherein: spacing dish (61) are inside hollow cylinder structure, the inside a week of spacing dish (61) is equipped with the spacing draw-in groove of a plurality of, and the degree of depth of spacing draw-in groove is less than the thickness of spacing dish (61), gag lever post (51) are the cylinder structure, a plurality of card strip is installed in the outside of gag lever post (51), and the size of card strip is the same with the size of the inside spacing draw-in groove of spacing dish (61).

5. The protective device for an elevator shaft according to claim 1, wherein: drive mechanism (5) and control box (10) electric connection, drive mechanism (5) and protection machanism (6) crossing department install fixing base (8), the state of fixed connection between drive mechanism (5), protection machanism (6) and fixing base (8) three is the structure of L type.

6. The protection device for an elevator shaft according to claim 5, wherein: the fixing seat (8) is composed of a second reset spring (81) and a second connecting plate (82), the second connecting plate (82) is installed above the second reset spring (81), and two ends of the second reset spring (81) are respectively inserted into the second connecting plate (82) and the limiting disc (61).

7. The protection device for an elevator shaft according to claim 3, wherein: the width of the second pulley (71) is greater than that of the cross rod (76), a support is installed at the intersection of the second pulley (71) and the cross rod (76), and the support is of a C-shaped structure.

8. The protective device for an elevator shaft according to claim 1, wherein: the starting support rod (7) is electrically connected with the transmission mechanism (5), the transmission mechanism (5) is connected with a power supply to present a stroke motion state in the downward moving process of the starting support rod (7), and the transmission mechanism (5) is disconnected with the power supply to present a return motion state in the resetting process of the starting support rod (7).

9. The protection device for an elevator shaft according to claim 3, wherein: rope (12) have been cup jointed in the outside of lifting machine (11), control box (10) are installed to one side of lifting machine (11), lifting machine (11) and control box (10) electric connection, two rows of guide pulleys (3) are respectively installed to the both sides of car (2), two track (1) are respectively installed with crossing of well main part (4) in guide pulley (3), flat bed sensor (9) are installed to car (2) top one side, flat bed sensor (9) and control box (10) electric connection.

10. The protective device for an elevator shaft according to claim 1, wherein: protection machanism (6) are provided with two altogether protection machanism (6) tiling is in the inside of well main part (4), two protection machanism (6) size after the tiling is the same with the cross-sectional dimension of well main part (4).