CN216836658U - Anti-falling device for traction type lifting device, lifter and elevator - Google Patents
Anti-falling device for traction type lifting device, lifter and elevator Download PDFInfo
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- CN216836658U CN216836658U CN202123369611.8U CN202123369611U CN216836658U CN 216836658 U CN216836658 U CN 216836658U CN 202123369611 U CN202123369611 U CN 202123369611U CN 216836658 U CN216836658 U CN 216836658U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 230000002265 prevention Effects 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 241000239290 Araneae Species 0.000 description 2
- 206010057071 Rectal tenesmus Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 208000012271 tenesmus Diseases 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model provides a falling preventing device, lift and elevator for elevating gear. The anti-falling device comprises a brake wheel, a first brake block, a brake frame, a drive rod, a limiting device and a starting block. The steel wire rope bypasses the brake wheel. The first brake pad is mounted on the support device. The brake frame has a second brake pad, and the lower end of the brake frame is rotatably mounted on the support device. The wire rope passes through a gap between the first brake pad and the second brake pad. The driving rod is fixedly connected with the brake frame. The limiting device is configured to keep the brake frame at an initial position. The starting block is arranged on the brake wheel. When the lifting device rapidly falls down, the guide pulley is driven by the steel wire rope to rotate at an accelerated speed, and meanwhile, the starting block rotates or moves towards the driving rod under the action of centrifugal force, and the driving rod drives the brake frame to rotate leftwards. Then the first brake block and the second brake block are tightly attached to clamp the steel wire rope, and the lifting device in the rapid falling process is stopped.
Description
Technical Field
The utility model relates to a lifting device safety technical field especially relates to a falling prevention device, lift and elevator for towing formula lifting device.
Background
Traction type lifting devices are becoming more and more compact with our daily lives, but at the same time the safety problem of traction type lifting devices is also a key concern of people. At present, most traction type lifting devices on the market adopt pulley blocks and wire rope winding drums to drive lifting of a suspension cage or a lift car. However, such a traction type lifting device usually does not have a fall prevention function, and when a wire rope drum machine of the traction type lifting device breaks down, a cage or a car rapidly falls to the bottom of a hoistway, so that irreparable life or property loss is caused; or some traction type lifting devices are provided with anti-falling devices, but the anti-falling devices are slow to start and cannot be stopped in time when the cage or the lift car begins to fall.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the present invention has been made in order to provide a fall arrest device for a traction type lifting device, a lifter and an elevator.
Specifically, the utility model provides a falling prevention device for a traction type lifting device, which comprises a supporting device and a steel wire rope; the fall protection device comprises:
the brake wheel is wound by the steel wire rope;
a first brake pad mounted to the support device;
a brake bracket having a second brake pad, a lower end of the brake bracket being rotatably mounted on the support means; the wire rope passes through a gap between the first brake pad and the second brake pad so that the second brake pad clamps the wire rope with the first brake pad after rotating towards the first brake pad;
the driving rod is fixedly connected with the brake frame;
a limiting device configured to keep the brake frame at an initial position;
the starting block is arranged on the brake wheel so as to rotate or move towards the driving rod under the action of centrifugal force, and the driving rod drives the brake frame to rotate towards the first brake block.
Optionally, the brake frame is an eccentric cam, the eccentric cam is rotatably mounted on the supporting device, and the part of the eccentric cam for cooperating with the first brake block is the second brake block;
alternatively, the brake frame may have only a second brake pad, and the second brake pad may be an eccentric cam.
Optionally, the starting block comprises a connecting rod and a balancing weight;
one end of the connecting rod is rotatably connected to the brake wheel, and the other end of the connecting rod is connected with the balancing weight;
the brake drum is characterized by comprising a plurality of starting blocks, and the starting blocks are uniformly distributed on the brake drum along the circumferential direction of the brake drum.
Optionally, the anti-falling device also comprises a traction elastic piece,
the traction elastic piece is arranged between the starting block and the brake wheel so as to promote the starting block to rotate or move towards the brake wheel;
the traction elastic part is a spring.
Optionally, the first brake pad is the brake wheel; or,
the first brake block is arranged on one side of the brake wheel, and the first brake block is a rotating wheel, a fixed block or one surface of the supporting device.
Optionally, the limiting device comprises a first stopper, a connecting rod and a brake spring, and the first stopper is fixedly mounted on the supporting device and is located on the right side of the brake frame; the connecting rod is fixedly arranged on the supporting device and is positioned below the lower end of the brake frame; the lower end of the brake spring is hinged to the connecting rod, the upper end of the brake spring is hinged to the brake frame, and when the second brake block is at the initial position, the upper end of the brake spring is positioned on the right side of a connecting line between the lower end of the brake spring and the lower end of the brake frame; after the second brake block rotates leftwards to be matched with the first brake block, the upper end of the brake spring is positioned on the left side of a connecting line between the lower end of the brake spring and the lower end of the brake frame; or,
the limiting device comprises a second block and a balance block, and the second block is fixedly arranged on the supporting device and is positioned on the right side of the brake frame; the balance block is fixedly arranged at the right end of the driving rod and is positioned at the right side of the brake frame; or,
the limiting device is a torsion spring, one end of the torsion spring is connected to the supporting device, the other end of the torsion spring is connected to the left side wall of the brake frame, and when the second brake block is at the initial position, the brake frame inclines towards the first brake block.
Optionally, the number of the steel wire ropes is two;
the two steel wire ropes are wound around the brake wheel;
the two steel wire ropes penetrate through a gap between the first brake block and the second brake block;
the anti-falling device also comprises a fixed seat, two springs and safety tongs, wherein the fixed seat is arranged on the supporting device, and a cavity is formed in the fixed seat; the two springs are positioned in the cavity, the upper ends of the two springs are fixedly connected to the top of the cavity, and the lower ends of the two springs are respectively connected with the two steel wire ropes; the safety gear is arranged below the fixed seat and is provided with a trigger mechanism, and when the two springs contract, the trigger mechanism is driven to trigger the safety gear.
Optionally, the traction type lifting device comprises a guide pulley, and the brake wheel is the guide pulley;
the anti-falling device is arranged at any position of the steel wire rope; the anti-falling device is arranged at one end and the other end of the steel wire rope or below the highest position of the steel wire rope.
The utility model also provides a traction type elevator, which comprises a supporting device, a steel wire rope, a suspension cage, a traction wheel and a falling-proof device,
the anti-falling device is any one of the anti-falling devices for the traction type lifting device;
the traction sheave is arranged above the suspension cage;
the steel wire rope simultaneously bypasses the brake wheel and the traction wheel.
The utility model also provides a traction type elevator, which comprises a supporting device, a steel wire rope, a lift car, a car top wheel and a falling-proof device,
the anti-falling device is any one of the anti-falling devices for the traction type lifting device;
the car top wheel is arranged above the car;
the steel wire ropes are wound around the brake wheel and the car top wheel at the same time.
The utility model provides a falling preventing device, lift and elevator for towed elevating gear can lead to cage or car to appear falling rapidly when the elevating gear breaks down, presss from both sides tight wire rope through first brake pads and second brake pads to the system stops or slows down the tenesmus of cage or car, has prevented the emergence of incident.
Further, the utility model provides a falling protector, lift and elevator for elevating gear is provided with two wire rope, and two wire rope are used for driving the lift of cage or car simultaneously, and when one of them wire rope broke down, another wire rope can guarantee elevating gear's normal operation, and cage or car can not directly drop to the well bottom, have guaranteed the safety of life or property better.
Further, the utility model discloses combine safety tongs's trigger mechanism and two springs ingeniously, when the condition that weighs down appears rapidly in elevating gear, the spring receives wire rope's pulling force and diminishes, then the spring contracts, and then triggers safety tongs. The safety of passengers or goods is protected more perfectly.
Just the utility model has the advantages of simple structure, the installation and use of being convenient for easily popularizes and applies.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic block diagram of an elevator with a fall arrest device according to some embodiments of the present invention;
fig. 2 is a schematic structural view of an elevator with a fall arrest device according to some embodiments of the present invention;
FIG. 3 is a schematic block diagram of the fall arrest device shown in FIG. 1;
FIG. 4 is a schematic block diagram of another state of the fall arrest device shown in FIG. 1;
FIG. 5 is a schematic block diagram of the fall arrest device shown in FIG. 2;
figure 6 is a schematic block diagram of a fall arrest device according to some embodiments of the invention.
Detailed Description
As shown in fig. 1 and referring to fig. 2 to 6, an embodiment of the present invention provides a fall arrest device 100 for a traction type lifting device, which includes a support device 210 and a wire rope 230. The fall arrest device comprises a brake wheel 220, a first brake shoe 110, a brake housing 120, an actuating rod 130, a limiting device 140 and an actuating block 150. Wire rope 230 passes around headblock 220. The first brake shoe 110 is mounted to the support device 210. The brake housing 120 has a second brake pad 121, and the lower end of the brake housing 120 is rotatably mounted on the support device 210. The wire rope 230 passes through a gap between the first brake shoe 110 and the second brake shoe 121 so that the second brake shoe 121 clamps the wire rope 230 with the first brake shoe 110 after rotating toward the first brake shoe 110. The first brake block 110 and the second brake block 121 are made of anti-slip material. The driving rod 130 is fixedly connected with the brake frame 120. The spacing device 140 is configured to maintain the brake spider 120 in an initial position. The actuating block 150 is provided on the brake wheel 220 to rotate or move toward the driving lever 130 by a centrifugal force, and the brake bracket 120 is rotated toward the first brake shoe 110 by the driving lever 130.
In use, when the second brake pad 121 is in the initial position, the brake frame 120 is positioned at a position on the right side of the first brake pad 110 and spaced apart from the first brake pad 110 by the stopper 140. When the lifting device breaks down and begins to rapidly drop, the brake wheel 220 rotates with high speed to drive the starting block 150 to rotate with the brake wheel 220 with high speed, due to the action of centrifugal force, the starting block 150 rotates or moves towards the driving rod 130 to press the left end of the driving rod 130 downwards, the driving rod 130 drives the brake frame 120 to rotate leftwards, so that the first brake block 110 is tightly attached to the second brake block 121 to clamp the steel wire rope 230, and the dropping of the lifting device can be stopped or slowed down.
The utility model provides a falling protector 100 for elevating gear reacts rapidly, can stop or slow down the elevating gear in the tenesmus at the very first time system, and the device simple structure, and the installation and use of being convenient for easily popularizes and applies.
In some embodiments of the present invention, the brake frame 120 is an eccentric cam, the eccentric cam is rotatably mounted on the supporting device 210, and the portion of the eccentric cam for cooperating with the first brake block 110 is the second brake block 121. It is also understood that the brake housing 120 has only the second brake pad 121, and the second brake pad 121 is an eccentric cam. When the traction type lifting device rapidly drops, the end with heavy weight of the eccentric cam is attached to the first brake block 110 more tightly, so that a better braking effect is achieved.
In some embodiments of the present invention, the brake frame 120 further comprises a frame rotatably mounted on the supporting device, and the second brake block 121 is disposed on the frame. By separating the second brake block 121 from the frame, when the second brake block 121 or the frame needs to be replaced, the second brake block 121 or the frame can be replaced independently, thereby reducing maintenance cost.
In some embodiments of the present invention, the starting block 150 includes a connecting rod and a weight block. One end of the connecting rod is rotatably connected to the brake wheel 220, and the other end of the connecting rod is connected to the balancing weight. Further, there are a plurality of the actuating blocks 150, and the plurality of actuating blocks 150 are uniformly distributed on the brake wheel 220 in a circumferential direction of the brake wheel 220. By providing the plurality of start blocks 150, it is possible to more rapidly arrest or slow down the falling of the lifting device when the lifting device falls down due to a failure.
In some embodiments of the present invention, the anti-falling device further comprises a traction elastic member disposed between the actuating block 150 and the braking wheel 220 to facilitate the actuating block 150 to rotate or move towards the braking wheel 210. The traction elastic part is a spring. When the traction elevator normally works, the traction elastic member can keep the starting block 150 and the brake wheel 220 relatively still, so that the starting block 150 does not move toward the driving rod 130 and the normal operation of the traction elevator is affected.
Further, the sensitivity of the fall protection device 100 can be adjusted by providing springs with different elastic coefficients, that is, the minimum rotation speed of the braking wheel 220 required when the starting block 150 moves towards the driving rod 130 is greater than the lifting speed of the lifting device in the normal working state, so as to be suitable for lifting devices with different lifting speeds in the normal working state.
In some embodiments of the present invention, as shown in fig. 2 or 5, the first shoe 110 is disposed on one side of the brake wheel 220, and preferably, the first shoe 110 is disposed below the brake wheel 220. The first brake shoe 110 is a wheel, a fixed block, or a surface of the support device 210. Preferably, the first stopper 110 is a fixing block or one surface of the supporting device 210. The first brake shoe 110 is provided in a fixed structure, which can improve the stability of the entire apparatus. In other embodiments of the present invention, as shown in fig. 1, 3, 4 or 6, the first brake shoe 110 is a brake wheel 220, which simplifies the structure of the whole device.
In some embodiments of the present invention, as shown in fig. 1, 3 or 4, the position limiting device 140 includes a first stopper 141, a connecting rod 142 and a braking spring 143. The first stopper is fixedly installed on the supporting device 210 and is located at the right side of the brake frame 120. The link 142 is fixedly mounted to the support device 210 and is located below the lower end of the brake spider 120. The lower end of the braking spring 143 is hinged to the link 142, and the upper end of the braking spring 143 is hinged to the brake frame 120.
As shown in fig. 1 or 3, when the second brake pad 121 is at the initial position, the upper end of the brake spring 143 is positioned at the right side of a line connecting the lower end of the brake spring 143 and the lower end of the brake bracket 120. The brake spring 143 and the first stopper 141 limit the position of the brake frame 120, so that the second brake block 121 is not attached to the first brake block 110 during normal operation of the lifting device, and the driving rod 130 is not in contact with the brake wheel 220, thereby ensuring normal operation of the lifting device.
As shown in fig. 4, after the second brake pad 121 is rotated to the left to engage with the first brake pad 110, the upper end of the brake spring 143 is positioned at the left side of a line connecting the lower end of the brake spring 143 and the lower end of the brake housing 120. The brake spring 143 provides a tensile force to the brake frame 120 continuously, so that the second brake pad 121 and the first brake pad 110 are better attached to each other, the cable 230 is clamped, and a better braking effect is provided to the lifting device.
In other embodiments of the present invention, as shown in fig. 2, 5 or 6, the position limiting device 140 includes a second stopper 144 and a weight 145. The second stopper 144 is fixedly installed on the supporting device 210 and is located at the right side of the brake frame 120. The counterweight 145 is fixedly mounted to the right end of the drive rod 130 and to the right of the brake frame 120. The second stop 144 ensures that the driving rod 130 does not contact the brake wheel 220, and the counterweight 145 ensures that the second brake pad 121 does not abut the first brake pad 110 during normal operation of the lifting device.
In still other embodiments of the present invention, the position limiting device 140 is a torsion spring, one end of the torsion spring is connected to the supporting device 210, and the other end of the torsion spring is connected to the left sidewall of the brake frame 120, and when the second brake block 121 is at the initial position, the brake frame 120 is inclined toward the first brake block 110. The torsion spring is used as the limiting device 140, so that the whole structure is simpler, and the installation and the use are convenient. Meanwhile, the inclined arrangement of the brake frame 120 to the first brake shoe 110 can shorten the braking stroke during braking, further increasing the braking speed.
In some embodiments of the present invention, the steel wire rope 230 is provided in two. Both cables 230 pass around headblock 220. Both wire ropes 230 pass through the gap between the first brake shoe 110 and the second brake shoe 121. The two steel wire ropes 230 are used for driving the lifting of the cage or the lift car, when one steel wire rope 230 breaks down, the other steel wire rope 230 can ensure the normal operation of the lifting device, the cage or the lift car cannot directly fall to the bottom of the well, and the safety of life or property is better ensured.
In some embodiments of the present invention, as shown in fig. 1 to 6, the fall arrest device 100 further comprises a fixing base 160 and two springs 170. The fixing base 160 is installed on the supporting device 210, and a cavity is formed in the fixing base 160. The two springs 170 are located in the cavity, the upper ends of the two springs 170 are fixedly connected to the top of the cavity, and the lower ends of the two springs 170 are respectively connected with the two steel wire ropes 230. The two springs 170 prevent the two wire ropes 230 from being separated from the guide pulley due to vibration of the lifting device during operation.
Preferably, in some embodiments of the present invention, as shown in fig. 1 to 6, an alarm lamp is installed on the top of the fixing base 160, a tension sensor is also installed on the top of the cavity, the tension sensor can monitor the tension applied to the two springs, and when the tension sensor detects that the tension applied to the two springs is greater than a set value, that is, when the lifting device is overloaded, the alarm lamp gives an alarm; or when the tension sensor detects that the tension applied to the two springs is smaller than the set value range, namely the lifting device breaks down and begins to drop rapidly, the alarm lamp can give an alarm. Through the cooperation setting of force sensor and alarm lamp, can prevent that the elevator from overloading the incident or in time remind the staff when the incident appears.
In some embodiments of the present invention, as shown in fig. 1-3, the fall arrest device 100 further comprises safety tongs 180. The safety gear 180 is installed below the fixing base 160. The safety gear 180 has a trigger mechanism 181, and when the two springs 170 contract, the trigger mechanism 181 is triggered, thereby triggering the safety gear 180. By skillfully combining the trigger mechanism 181 of the safety gear 180 with the two springs 170, when the lifting device drops rapidly, the tension of the steel wire rope 230 on the springs 170 is reduced, and then the springs 170 contract to drive the trigger mechanism 181, so as to trigger the safety gear 180. The safety of passengers or goods is protected more perfectly.
In some embodiments of the present invention, the fall arrest device is installed at any position of the wire rope 230. Preferably, the fall prevention device is installed at one end of the wire rope 230, the other end thereof, or below the highest position of the wire rope 230. The brake wheel 220 is a guide pulley, and this arrangement can further simplify the structure of the entire apparatus.
The anti-falling device is of an independent structure, so that the original traction type lifting device does not need to be disassembled and recombined, and the anti-falling device is more convenient to install. In some embodiments of the present invention, the traction type lifting device includes a guide pulley, and the brake wheel 220 is a guide pulley. The original structure of the elevator can be fully utilized by the arrangement.
The utility model also provides an elevator, as shown in fig. 1, including strutting arrangement 210, wire rope 230, cage 240, driving sheave 250 and anti-falling device. The support device 210 includes an elevator hoistway and associated structural members, such as a top sill, that are fixedly disposed. The anti-falling device is the anti-falling device 100 for the traction type lifting device in any one of the embodiments. The traction sheave 250 is installed above the cage 240. The wire rope 230 passes around both the brake sheave 220 and the traction sheave 250. When the elevator breaks down and the cage 240 drops rapidly, the first brake block 110 and the second brake block 121 clamp the steel wire rope 230 to stop the dropping of the cage 240, and due to the action of friction force, the dropping speed of the cage 240 is faster, the first brake block 110 and the second brake block 121 clamp the steel wire rope 230 more tightly, the stopping effect is better, and the safety accident is prevented.
The utility model also provides an elevator, as shown in fig. 2, including strutting arrangement 210, wire rope 230, car 260, sedan-chair top wheel 270 and anti-falling device. The support device 210 includes an elevator hoistway and associated structural members fixedly disposed, such as a hoistway beam, etc. The anti-falling device is the anti-falling device 100 for the traction type lifting device in any one of the embodiments. A ceiling wheel 270 is mounted above the car 260. The wire ropes 230 are all routed around the headblock wheel 220 and the ceiling wheel 270 simultaneously. When the elevator breaks down and the elevator car 260 falls down rapidly, the first brake block 110 and the second brake block 121 clamp the steel wire rope 230 to stop the falling of the elevator car 260, and due to the action of friction force, the falling speed of the elevator car 260 is higher, the first brake block 110 and the second brake block 121 clamp the steel wire rope 230 more tightly, the stopping effect is better, and safety accidents are prevented.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A fall protection device for a traction type lifting device comprises a supporting device and a steel wire rope; characterized in that, anti-falling device includes:
the brake wheel is wound by the steel wire rope;
a first brake pad mounted to the support device;
a brake bracket having a second brake pad, a lower end of the brake bracket being rotatably mounted on the support means; the wire rope passes through a gap between the first brake pad and the second brake pad such that the second brake pad clamps the wire rope with the first brake pad upon rotation toward the first brake pad;
the driving rod is fixedly connected with the brake frame;
a limiting device configured to keep the brake frame at an initial position;
the starting block is arranged on the brake wheel so as to rotate or move towards the driving rod under the action of centrifugal force, and the driving rod drives the brake frame to rotate towards the first brake block.
2. The device of claim 1,
the brake frame is an eccentric cam, the eccentric cam is rotatably mounted on the supporting device, and the part of the eccentric cam, which is used for being matched with the first brake block, is the second brake block;
alternatively, the brake frame may have only a second brake pad, and the second brake pad may be an eccentric cam.
3. The device of claim 1,
the starting block comprises a connecting rod and a balancing weight;
one end of the connecting rod is rotatably connected to the brake wheel, and the other end of the connecting rod is connected with the balancing weight;
the brake drum is characterized by comprising a plurality of starting blocks, and the starting blocks are uniformly distributed on the brake drum along the circumferential direction of the brake drum.
4. The device of claim 1 further comprising a traction spring,
the traction elastic piece is arranged between the starting block and the brake wheel so as to promote the starting block to rotate or move towards the brake wheel;
the traction elastic part is a spring.
5. The device of claim 1,
the first brake block is the brake wheel; or,
the first brake block is arranged on one side of the brake wheel, and the first brake block is a rotating wheel, a fixed block or one surface of the supporting device.
6. The device of claim 1,
the limiting device comprises a first stop block, a connecting rod and a brake spring, and the first stop block is fixedly arranged on the supporting device and is positioned on the right side of the brake frame; the connecting rod is fixedly arranged on the supporting device and is positioned below the lower end of the brake frame; the lower end of the brake spring is hinged to the connecting rod, the upper end of the brake spring is hinged to the brake frame, and when the second brake block is at the initial position, the upper end of the brake spring is positioned on the right side of a connecting line between the lower end of the brake spring and the lower end of the brake frame; after the second brake block rotates leftwards to be matched with the first brake block, the upper end of the brake spring is positioned on the left side of a connecting line between the lower end of the brake spring and the lower end of the brake frame; or,
the limiting device comprises a second stopper and a balance block, and the second stopper is fixedly arranged on the supporting device and is positioned on the right side of the brake frame; the balance block is fixedly arranged at the right end of the driving rod and is positioned at the right side of the brake frame; or,
the limiting device is a torsion spring, one end of the torsion spring is connected to the supporting device, the other end of the torsion spring is connected to the left side wall of the brake frame, and when the second brake block is at the initial position, the brake frame inclines towards the first brake block.
7. The device of claim 1,
the number of the steel wire ropes is two;
the two steel wire ropes are wound around the brake wheel;
the two steel wire ropes penetrate through a gap between the first brake block and the second brake block;
the anti-falling device also comprises a fixed seat, two springs and safety tongs, wherein the fixed seat is arranged on the supporting device, and a cavity is formed in the fixed seat; the two springs are positioned in the cavity, the upper ends of the two springs are fixedly connected to the top of the cavity, and the lower ends of the two springs are respectively connected with the two steel wire ropes; the safety gear is arranged below the fixed seat and is provided with a trigger mechanism, and when the two springs contract, the trigger mechanism is driven to trigger the safety gear.
8. The device of claim 1,
the traction type lifting device comprises a guide pulley, and the brake wheel is the guide pulley;
the anti-falling device is arranged at any position of the steel wire rope; the anti-falling device is arranged at one end and the other end of the steel wire rope or below the highest position of the steel wire rope.
9. A traction type elevator, which comprises a supporting device, a steel wire rope, a cage and a traction sheave, and is characterized by also comprising a falling prevention device,
the anti-falling device is the anti-falling device for the traction type lifting device in any one of claims 1 to 8;
the traction sheave is arranged above the suspension cage;
the steel wire rope simultaneously bypasses the brake wheel and the traction wheel.
10. A traction type elevator, which comprises a supporting device, a steel wire rope, a lift car and a top wheel, and is characterized by also comprising a falling prevention device,
the anti-falling device is the anti-falling device for the traction type lifting device in any one of claims 1 to 8;
the car top wheel is arranged above the car;
the steel wire ropes are wound around the brake wheel and the car top wheel at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123369611.8U CN216836658U (en) | 2021-12-30 | 2021-12-30 | Anti-falling device for traction type lifting device, lifter and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123369611.8U CN216836658U (en) | 2021-12-30 | 2021-12-30 | Anti-falling device for traction type lifting device, lifter and elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216836658U true CN216836658U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123369611.8U Active CN216836658U (en) | 2021-12-30 | 2021-12-30 | Anti-falling device for traction type lifting device, lifter and elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216836658U (en) |
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2021
- 2021-12-30 CN CN202123369611.8U patent/CN216836658U/en active Active
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