CN113979258B - Protection device for elevator well - Google Patents

Abstract

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

Description

A protective device for an elevator shaft

technical field

The invention belongs to the technical field of elevator equipment, in particular to a protective device for an elevator shaft.

Background technique

The elevator shaft is the shaft where the elevator is installed. The size of the shaft is determined according to the selection of the elevator. The elevator track and the counterweight rail are installed on the shaft wall, and the elevator door is installed in the reserved door opening. There is an elevator machine room on the top of the shaft.

Elevator is a kind of vertical elevator powered by electric motor, equipped with box-shaped gondola, which is used for multi-storey buildings to take people or carry goods. There is also a step type, and the tread plate is installed on the crawler belt to run continuously, commonly known as an escalator or a moving walk. Fixed lifting equipment serving specified floors. A vertical lift has a car that runs between at least two vertical columns of rigid guide rails.

The existing elevator shafts generally do not have good protective measures. If the elevator door fails, the user may fall into the interior of the elevator shaft through the elevator door. If there are no protective measures, this will cause great harm to the user. Injuries can lead to serious safety accidents.

Contents of the invention

The object of the present invention is to solve the problems in the background technology and provide a protective device for elevator shafts.

The technical scheme that the present invention adopts is as follows:

A protective device for an elevator shaft, comprising a shaft main body, a hoist is installed above the shaft main body, a car is installed inside the shaft main body, and the top of the car is fixedly connected with a rope;

A starting strut is installed below the side of the car close to the leveling sensor, and a protective mechanism is installed at the intersection of the lower part of the starting strut and the hoistway main body;

A transmission mechanism is installed at the intersection of the protective mechanism and the hoistway main body. The protective mechanism is composed of a limit plate, a frame, a first pulley and a protective net. The first pulley is installed above the frame, and the first The pulley and the frame are fixedly connected by bolts, the protective net is arranged inside the frame, the limiting disc is installed under the frame, and the limiting disc and the frame are connected by spot welding.

The transmission mechanism is composed of a limit rod, a fixed plate, a cylinder assembly and a transmission shaft. The transmission shaft is arranged inside the cylinder assembly, and a sealing shaft is installed at the intersection of the two ends of the transmission shaft and the cylinder assembly. The fixed plate is installed at one end of the cylinder assembly, and the fixed plate is a disc-shaped structure. The side of the fixed plate close to the cylinder assembly is equipped with several screw rods along the circumferential direction of the fixed plate. The limit rod is installed on the transmission shaft. One end close to the fixed disk, the connection between the limit rod and the drive shaft is fixed by spot welding.

Preferably, the starting support rod is composed of a second pulley, a first connecting plate, a connecting piece, a first return spring, a fastener and a cross bar, and the connecting piece is installed on one side of the first connecting plate, so that The first return spring is installed under the first connecting plate, the cross bar is installed under the first return spring, the fastener is installed at the intersection of the cross bar and the first return spring, and the second pulley Mounted on the end of the crossbar away from the fastener.

Preferably, the limiting disc is a hollow cylindrical structure inside, and there are several limiting slots around the inside of the limiting disc, and the depth of the limiting slots is smaller than the thickness of the limiting disc. The position bar is a cylindrical structure, and several clip bars are installed on the outer side of the bar, and the size of the bar is the same as that of the limit slot inside the limit plate.

Preferably, the transmission mechanism is electrically connected to the control box, a fixing seat is installed at the intersection of the transmission mechanism and the protection mechanism, and the state of the fixed connection between the transmission mechanism, the protection mechanism and the fixing seat is L-shaped structure.

Preferably, the fixing base is composed of a second return spring and a second connection plate, the second connection plate is installed above the second return spring, and the two ends of the second return spring are respectively plugged into the second The inside of the connecting plate and the inside of the limit plate.

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

Preferably, the starting rod is electrically connected to the transmission mechanism, the transmission mechanism is powered on during the downward movement of the starting rod, and the transmission mechanism is powered off during the reset process of the starting rod.

Preferably, ropes are sleeved on the outside of the hoist, a control box is installed on one side of the hoist, the hoist is electrically connected to the control box, and two rows of guides are installed on both sides of the car. Two rows of rails are installed at the intersection of the guide wheel and the hoistway main body, and a leveling sensor is installed on the upper side of the car, and the leveling sensor is electrically connected to the control box.

Preferably, there are two protective mechanisms in total, the two protective mechanisms are tiled inside the hoistway main body, and the size of the two protective mechanisms after tiled is the same as the cross-sectional size of the hoistway main body.

In summary, owing to adopting above-mentioned technical scheme, the beneficial effect of the present invention is:

1. In the present invention, a protective mechanism is installed near the lower side of the elevator door inside the elevator shaft, and a fixed seat and a transmission mechanism are installed at the intersection of the protection mechanism and the main body of the shaft, and the transmission mechanism is electrically connected with the starting pole, so that The protection mechanism can be opened and closed through the transmission mechanism, so that if the user falls through the elevator door due to improper operation, it can play a supporting role under the action of the protection mechanism, preventing the user from falling below the main body of the hoistway .

2. In the present invention, when the car and the starting pole contact each other, the starting pole drives the transmission mechanism to run, so that the limit rod inside the transmission mechanism and the limit plate inside the protection mechanism are separated from each other, and the car is in the process of descending. The protective mechanisms on both sides of the main body of the hoistway are in contact with each other, so that the protective mechanisms are opened without hindering the operation of the car.

3. In the present invention, when the car runs to the bottom of the protection mechanism, the starting pole returns under the action of the first return spring, so that the transmission mechanism makes a return movement, and at the same time the protection mechanism is under the action of the second return spring. Do the return movement, so that the limit rod inside the transmission mechanism and the limit plate inside the protection mechanism contact each other, so that the protection mechanism is fixed tightly.

4. In the present invention, a first pulley is installed on the side of the protection mechanism away from the hoistway main body, so that when the first pulley and the car are in contact with each other, the frictional noise between the protection mechanism and the car can be reduced.

5. In the present invention, the limit disc inside the protection mechanism is the same size as the limit rod inside the transmission mechanism, so that the limit rod inside the transmission mechanism and the limit disc inside the protection mechanism are inserted into each other, which can be achieved under the action of the transmission mechanism. It acts as a limit to the protective mechanism.

6. In the present invention, a second pulley is installed on the side of the starting pole close to the car, so that when the second pulley contacts the car, the frictional noise between the starting pole and the car can be reduced

Description of drawings

Fig. 1 is the sectional structure schematic diagram of the protective device for elevator hoistway of the present invention;

Fig. 2 is a schematic diagram of a top view enlarged structure of the protection mechanism of the present invention;

Fig. 3 is the schematic diagram of enlarged structure of transmission mechanism of the present invention;

Fig. 4 is a schematic cross-sectional structure diagram of a limit rod of the present invention;

Fig. 5 is a schematic cross-sectional structure diagram of the protection mechanism of the present invention;

Fig. 6 is a schematic cross-sectional structure diagram of a limiting disc of the present invention;

Fig. 7 is a side view structural schematic diagram of the starting strut of the present invention;

Fig. 8 is a schematic cross-sectional structure diagram of the fixing base of the present invention.

Marks in the figure: 1. track; 2. car; 3. guide wheel; 4. hoistway main body; 5. transmission mechanism; 51. limit rod; 52. fixed plate; 53. cylinder assembly; 54. transmission shaft; 6 , protective mechanism; 61, limit plate; 62, frame; 63, first pulley; 64, protective net; 7, start pole; 71, second pulley; 72, first connecting plate; 73, connector; 74 , the first return spring; 75, the fastener; 76, the crossbar; 8, the fixed seat; 81, the second return spring; 82, the second connecting plate; 9, the leveling sensor; Machine; 12. Rope.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

【Example 1】

As shown in Figures 1 and 6, a protective device for an elevator shaft includes a hoistway main body 4, a hoist 11 is installed above the hoistway main body 4, a car 2 is installed inside the hoistway main body 4, and the top of the car 2 Fixedly connected with the rope 12;

A starting pole 7 is installed below the side of the car 2 close to the leveling sensor 9, and a protective mechanism 6 is installed at the intersection of the bottom of the starting pole 7 and the hoistway main body 4;

A transmission mechanism 5 is installed at the intersection of the protection mechanism 6 and the hoistway main body 4. The protection mechanism 6 is composed of a limit plate 61, a frame 62, a first pulley 63 and a protection net 64. The first pulley 63 is installed above the frame 62. The first pulley 63 is fixedly connected with the frame 62 by bolts, the protective net 64 is located inside the frame 62, the limit plate 61 is installed below the frame 62, and the limit plate 61 and the frame 62 are connected by spot welding.

During specific use, when the car 2 and the starting pole 7 are in contact with each other, the starting pole 7 drives the transmission mechanism 5 to run, so that the limit rod 51 inside the transmission mechanism 5 is separated from the limit disc 61 inside the protection mechanism 6, During the descending process, the car 2 contacts with the protection mechanisms 6 on both sides inside the hoistway main body 4 , so that the protection mechanisms 6 are opened without hindering the operation of the car 2 .

When the car 2 moved below the protection mechanism 6, the starting pole 7 returned under the action of the first back-moving spring 74, so that the transmission mechanism 5 made a return movement, and at the same time the protection mechanism 6 was under the action of the second back-moving spring 81 The effect of the return movement is done, so that the limit rod 51 inside the transmission mechanism 5 and the limit plate 61 inside the protection mechanism 6 are in contact with each other, so that the protection mechanism 6 is fixed tightly.

[Example 2]

As shown in Figure 3, the transmission mechanism 5 is composed of a limit rod 51, a fixed plate 52, a cylinder assembly 53 and a transmission shaft 54, the transmission shaft 54 is located inside the cylinder assembly 53, and the two ends of the transmission shaft 54 intersect with the cylinder assembly 53 Sealing shafts are installed everywhere, and the fixed disk 52 is installed on one end of the cylinder assembly 53. The fixed disk 52 is a disc-shaped structure. The side of the fixed disk 52 close to the cylinder assembly 53 is equipped with several screw rods along the circumferential direction of the fixed disk 52. The limit rod 51 is installed on the end of the transmission shaft 54 close to the fixed plate 52, and the connection mode between the limit rod 51 and the transmission shaft 54 is fixed by spot welding.

During specific use, when the transmission mechanism 5 is powered on, the cylinder assembly 53 drives the transmission shaft 54 to move, so that the transmission shaft 54 drives the limit rod 51 to move, so that the limit rod 51 can be separated from the limit disc 61, so that It is possible to make the protection mechanism 6 lose the position-limiting function.

[Example 3]

As shown in Figure 7, the starting pole 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 bar 76, and the connecting piece 73 is installed on the first One side of the connecting plate 72, the first return spring 74 is installed under the first connecting plate 72, the cross bar 76 is installed under the first return spring 74, and the fastener 75 is installed on the cross bar 76 and the first return spring 74 The second pulley 71 is mounted on the end of the cross bar 76 away from the fastening member 75 at the intersection.

During specific use, when the first return spring 74 inside the start support rod 7 drives the start support rod 7 to rotate downward under the action of the car 2, the first return spring 74 accumulates energy, and when the car 2 and the start support rod 7 interact with each other When separating, when the first return spring 74 has no downward force, under the rebound of the first return spring 74, the starting rod 7 returns to its original position.

【Example 4】

As shown in Fig. 5 and Fig. 6, the limit plate 61 is a hollow cylindrical structure inside, and the inside of the limit plate 61 is provided with several limit card slots, and the depth of the limit card groove is smaller than that of the limit plate 61. Thickness, the limit rod 51 is a cylindrical structure, and several clips are installed on the outside of the limit rod 51, and the size of the clips is the same as the size of the limit slot inside the limit disk 61.

During specific use, the clip inside the limit rod 51 is connected to the limit slot inside the limit disc 61, so that under the action of the limit rod 51 and the limit disc 61, the transmission mechanism 5 and the protection Mechanism 6 plays a position-limiting role.

【Example 5】

As shown in Figure 2, the transmission mechanism 5 is electrically connected to the control box 10, and a fixed seat 8 is installed at the intersection of the transmission mechanism 5 and the protective mechanism 6, and the transmission mechanism 5, the protective mechanism 6 and the fixed seat 8 are fixedly connected. The state is an L-shaped structure.

In specific use, this can make the transmission mechanism 5 and the protection mechanism 6 be fixed and installed more stably under the action of the fixing seat 8 .

[Example 6]

As shown in Figure 8, the fixed base 8 is composed of a second return spring 81 and a second connection plate 82, the second connection plate 82 is installed above the second return spring 81, and the two ends of the second return spring 81 are inserted respectively Inside the second connecting plate 82 and inside the limiting plate 61 .

During specific use, when the second return spring 81 inside the fixed seat 8 rotates downwards in the protective mechanism 6, the second return spring 81 accumulates energy. When the protective mechanism 6 has no downward force, the second return spring 81 Under the rebound, the protection mechanism 6 is restored to its original position.

[Example 7]

As shown in FIG. 7 , the width of the second pulley 71 is greater than that of the crossbar 76 , and a bracket is installed at the intersection of the second pulley 71 and the crossbar 76 , and the bracket is a C-shaped structure.

During specific use, the second pulley 71 is tightly fixed to the cross bar 76 under the action of the bracket, thereby preventing the second pulley 71 from falling off when rotating.

[Embodiment 8]

As shown in Figure 1, the starting pole 7 is electrically connected to the transmission mechanism 5, the transmission mechanism 5 is powered on when the starting pole 7 is moving down, and the transmission mechanism 5 is powered off when the starting pole 7 is reset.

During specific use, when the starting pole 7 rotates downward, the transmission mechanism 5 is powered on, so that the limit rod 51 inside the transmission mechanism 5 and the limit disk 61 inside the protection mechanism 6 are separated from each other, so that the protection mechanism 6 loses its limit. When the starting rod 7 rotates upwards, the transmission mechanism cuts off the power supply, so that the limit rod 51 inside the transmission mechanism 5 and the limit plate 61 inside the protection mechanism 6 contact each other, so that the protection mechanism 6 is limited. effect.

[Example 9]

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

During specific use, the car 2 can be stopped at a suitable position under the effect of the leveling sensor 9 like this.

【Example 10】

As shown in FIG. 1 , there are two protective mechanisms 6 . The two protective mechanisms 6 are tiled inside the hoistway main body 4 .

During specific use, the cross-section of the hoistway main body 4 can be tiled completely under the action of the two protective mechanisms 6 that are tiled, so that the protective mechanism 6 can play a better role in receiving the items falling from above, and avoid the occurrence of items. Fall into the bottom of hoistway main body 4.

Working principle: when the elevator structure is wrong, when the user falls into the inside of the hoistway main body 4 through the elevator door, the user can be accepted under the action of the protection mechanism 6, preventing the user from falling into the hoistway The lower part of the main body 4 can improve the use safety of the hoistway main body 4 .

And when car 2 is running normally, under the effect of leveling sensor 9, car 2 stays at the corresponding position of the elevator door, and at this moment car 2 will not come into contact with starting pole 7, so that protective mechanism 6 will not When the car 2 continues to move down, the car 2 and the starting pole 7 are in contact with each other. Under the action of the car 2, the starting pole 7 is rotated with the hoistway main body 4 as the pole, and the starting pole 7 will The power supply of the transmission mechanism 5 is connected, and the cylinder assembly 53 inside the transmission mechanism 5 drives the transmission shaft 54 to move, and the transmission shaft 54 separates the limit rod 51 from the limit disk 61 inside the protection mechanism 6, so that the transmission mechanism 5 can be separated from each other. Separate from the protective mechanism 6.

When the car 2 continues to move down, the car 2 and the protection mechanism 6 are in contact with each other. The pulley 63 and the car 2 are in contact with each other, so as to prevent the protection mechanism 6 from generating greater friction on the car 2 and causing a larger noise, and a second pulley is installed on the side of the starting pole 7 close to the car 2 71, so that the car 2 can better reduce the occurrence of noise under the action of the first pulley 63 and the second pulley 71 when it is running.

When the car 2 runs below the protection mechanism 6, the car 2 and the starting pole 7 do not contact each other, and at this time the starting pole 7 returns under the action of the first return spring 74, so that the transmission mechanism 5 is powered on And make a return movement, and at the same time, the protection mechanism 6 performs a return movement under the effect of the second return spring 81, so that the limit rod 51 inside the transmission mechanism 5 and the limit plate 61 inside the protection mechanism 6 are in contact with each other, so that the hoistway The protective mechanism 6 on both sides inside the main body 4 is tiled and fixed tightly, so that the user can take over through the protective mechanism 6 if an accident occurs.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (8)

1. Protection device for elevator well, including well main part (4), its characterized in that: a hoist (11) is arranged above the hoistway main body (4), a lift car (2) is arranged in the hoistway main body (4), and the upper part of the lift car (2) is fixedly connected with a rope (12);

a starting support rod (7) is arranged below one side, close to the leveling sensor (9), of the lift car (2), 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 protection mechanism (6) and the hoistway main body (4) are connected, a transmission mechanism (5) is arranged at the intersection of the protection mechanism (6) and the hoistway main body (4), the protection mechanism (6) is composed of a limiting disc (61), a frame (62), a first pulley (63) and a protection net (64), the first pulley (63) is arranged above the frame (62), the first pulley (63) is fixedly connected with the frame (62) through bolts, the protection net (64) is arranged inside the frame (62), the limiting disc (61) is arranged below the frame (62), and the connection mode of the limiting disc (61) and the frame (62) is spot welding and fixing;

the transmission mechanism (5) consists of a limiting rod (51), a fixed disc (52), an air cylinder assembly (53) and a transmission shaft (54), wherein the transmission shaft (54) is arranged in the air cylinder assembly (53), sealing shafts are arranged at the intersections of the transmission shaft (54) and the two ends of the air cylinder assembly (53), the fixed disc (52) is arranged at one end of the air cylinder assembly (53), the fixed disc (52) is of a disc-shaped structure, a plurality of screws are arranged on one side, close to the air cylinder assembly (53), of the fixed disc (52) along 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) is in spot welding fixation with the transmission shaft (54);

the starting support rod (7) is composed of a second pulley (71), a first connecting plate (72), a connecting piece (73), a first reset spring (74), a fastening piece (75) and a cross rod (76), wherein the connecting piece (73) is arranged on one side of the first connecting plate (72), the first reset spring (74) is arranged below the first connecting plate (72), the cross rod (76) is arranged below the first reset spring (74), the fastening piece (75) is arranged at the intersection of the cross rod (76) and the first reset spring (74), and the second pulley (71) is arranged at one end, far away from the fastening piece (75), of the cross rod (76).

2. A protective device for an elevator hoistway as claimed in claim 1, wherein: the limiting disc (61) is of a hollow cylinder structure, a plurality of limiting clamping grooves are formed in the periphery of 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 of a cylinder structure, a plurality of clamping strips are arranged on the outer side of the limiting rod (51), and the sizes of the clamping strips are identical to those of the limiting clamping grooves in the inside of the limiting disc (61).

3. A protective device for an elevator hoistway as claimed in claim 1, wherein: the transmission mechanism (5) is electrically connected with the control box (10), a fixed seat (8) is arranged at the intersection of the transmission mechanism (5) and the protection mechanism (6), and the transmission mechanism (5), the protection mechanism (6) and the fixed seat (8) are fixedly connected in an L-shaped structure.

4. A protective device for an elevator hoistway as claimed in claim 3, 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 arranged 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).

5. A protective device for an elevator hoistway as claimed in claim 1, wherein: the width of the second pulley (71) is larger than that of the cross rod (76), a bracket is arranged at the intersection of the second pulley (71) and the cross rod (76), and the bracket is of a C-shaped structure.

6. A protective device for an elevator hoistway as claimed in claim 1, wherein: the starting support rod (7) is electrically connected with the transmission mechanism (5), the transmission mechanism (5) is powered on in the downward moving process of the starting support rod (7), and the transmission mechanism (5) is powered off in the resetting process of the starting support rod (7).

7. A protective device for an elevator hoistway as claimed in claim 1, wherein: the elevator is characterized in that a rope (12) is sleeved on the outer side of the elevator (11), a control box (10) is arranged on one side of the elevator (11), the elevator (11) is electrically connected with the control box (10), two rows of guide wheels (3) are respectively arranged on two sides of the elevator car (2), two rows of tracks (1) are respectively arranged at the intersection of each guide wheel (3) and a hoistway main body (4), a leveling sensor (9) is arranged on one side above the elevator car (2), and the leveling sensor (9) is electrically connected with the control box (10).

8. A protective device for an elevator hoistway as claimed in claim 1, wherein: the protection mechanism (6) is provided with two in total, two protection mechanism (6) tiling is in the inside of well main part (4), and two protection mechanism (6) size after tiling is the same with the cross-section size of well main part (4).

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