CN220845038U - Safety interlocking device of elevator - Google Patents
Safety interlocking device of elevator Download PDFInfo
- Publication number
- CN220845038U CN220845038U CN202322514408.8U CN202322514408U CN220845038U CN 220845038 U CN220845038 U CN 220845038U CN 202322514408 U CN202322514408 U CN 202322514408U CN 220845038 U CN220845038 U CN 220845038U
- Authority
- CN
- China
- Prior art keywords
- protective door
- outlet
- door
- elevator
- linkage mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 103
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 claims 1
- 229920002752 Konjac Polymers 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 235000010485 konjac Nutrition 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Landscapes
- Types And Forms Of Lifts (AREA)
Abstract
The utility model discloses a safety interlocking device of a lifting machine, which comprises a well and a lifting machine, wherein the well and the lifting machine move in the well are vertically arranged, a first outlet and a second outlet are arranged on the side wall of the well, the first outlet is positioned below the second outlet, a first protection door is arranged at the first outlet, a second protection door is arranged at the second outlet, the first protection door and the second protection door have the same structure, and the first protection door and the second protection door are both opened and closed along the vertical direction; the two sides of the first protective door are provided with first linkage mechanisms, the bottom of the elevator is provided with a transmission column, and the transmission column is matched with the first protective door through pulleys formed by the first linkage mechanisms in the descending process of the elevator so as to open the first protective door; the bottom of one side of the second protective door, which is close to the well, is provided with a second linkage mechanism, and the lifting machine is connected with the second linkage mechanism through the top in the lifting process so as to synchronously move with the second protective door. The protective door is convenient to automatically open and close according to the running position of the elevator.
Description
Technical Field
The utility model relates to the technical field of konjak food production, in particular to a safety interlocking device of a lifter.
Background
The existing konjak processing factory building can use a lifting machine as a lifting device in construction, and in konjak processing, the lifting height of the lifting device is two layers, so that a first outlet and a second outlet which are respectively communicated are usually arranged on the side wall of a hoistway, and bidirectional goods entering and exiting of the first outlet and the second outlet are facilitated.
However, the elevator has a certain safety risk while improving the working efficiency, and the protective door may forget to be closed; and the opening of the protective door needs to be carried out manually, and the goods are not easy to discharge when the goods are various and the goods are inconvenient to contact with the switch.
Disclosure of Invention
The utility model aims to provide a safety interlocking device of a lifting machine, which enables a first protective door and a second protective door to be automatically opened or closed according to the position state of the lifting machine through a first linkage mechanism and a second linkage mechanism, and solves the problems that the safety hidden trouble is caused when the protective door is forgotten to be closed in the operation process of the existing lifting machine and the protective door is inconvenient to be opened manually.
The utility model aims to overcome the defects, and provides a safety interlocking device of a lifting machine, which comprises a well and a lifting machine, wherein the well is vertically arranged, the lifting machine moves in the well, a first outlet and a second outlet are arranged on the side wall of the well, the first outlet is positioned below the second outlet, a first protective door is arranged at the first outlet, a second protective door is arranged at the second outlet, the first protective door and the second protective door have the same structure, and the first protective door and the second protective door are both opened and closed along the vertical direction;
The two sides of the first protective door are provided with first linkage mechanisms, the bottom of the lifting machine is provided with a transmission column, and the transmission column is matched with the first protective door through pulleys formed by the first linkage mechanisms in the descending process of the lifting machine so as to open the first protective door;
The bottom of one side of the second protective door, which is close to the well, is provided with a second linkage mechanism, and the lifting machine is connected with the second linkage mechanism through the top in the lifting process so as to synchronously move with the second protective door.
Preferably, the first linkage mechanisms are symmetrical about the first protective door, and the transmission columns are in one-to-one correspondence with the first linkage mechanisms.
More preferably, the first linkage mechanism comprises a fixed pulley arranged at the top of the first outlet, a cable is arranged on the fixed pulley, one end of the cable is detachably and fixedly matched with the first protective door on one side of the fixed pulley, the other end of the cable is detachably and fixedly matched with a sliding plate on the other side of the fixed pulley, the sliding plate is in pulley matching with the first protective door through the cable and the fixed pulley, the sliding plate is in sliding fit with the side wall of the first outlet, an airfoil lifting hook is arranged at the bottom of the sliding plate, and a transmission column is connected with the airfoil lifting hook and forms transmission matching in the descending process of the elevator.
Further, hanging hooks are arranged at two ends of the mooring rope, hanging rings are arranged on the side wall of the first protective door, hanging rings are arranged in the middle of the top of the sliding plate, the hanging rings correspond to the hanging hooks one to one, and the hanging hooks are respectively matched with the corresponding hanging rings in a hooking manner.
Still further, the intermediate position of sliding plate is equipped with the spacing groove along the vertical direction, is equipped with spacing post in the spacing groove, and spacing post vertically with the lateral wall fixed fit of first export, spacing groove and spacing post form spacing sliding fit under the hawser pulls.
Preferably, the second linkage mechanism comprises a stop block, the stop block is arranged at the bottom of one side of the second protective door, close to the hoistway, and extends towards the inside of the hoistway, and the stop block is parallel to the top of the elevator.
More preferably, each second linkage mechanism is internally provided with two blocks, the two blocks are symmetrical about the middle position of the second protective door, and reinforcing ribs are arranged between the upper part of each block and the second protective door.
Preferably, the two sides of the first outlet and the second outlet are respectively provided with upright posts vertically, the upright posts are respectively in one-to-one correspondence with the side sides of the first protective door and the second protective door, the two sides of the first protective door and the second protective door are of a barrel-mounted structure, and the two sides of the first protective door and the second protective door are sleeved on the corresponding upright posts to form sliding fit.
Preferably, the first protective door and the second protective door comprise two cross bars which are oppositely arranged, a plurality of vertical bars which are uniformly distributed are arranged between the two cross bars, the vertical bars are perpendicular to the two cross bars, and the end parts of the cross bars positioned on the same side are fixed on the same barrel-shaped structure.
The utility model has the beneficial effects that:
According to the utility model, the elevator is matched with the first protective door through the first linkage mechanism to form a pulley, when the elevator descends, the first protective door is automatically opened, and when the elevator ascends, the first protective door is closed; the lifting machine and the second protective door form bearing fit through the second linkage mechanism, so that synchronous movement is realized; the protection door of the outlet is automatically opened when the elevator moves to the corresponding outlet, and is automatically closed when the elevator leaves the corresponding outlet, so that the use is convenient and the safety is ensured.
Drawings
FIG. 1 is a schematic perspective view of the whole of the present utility model;
Fig. 2 is a schematic cross-sectional view of the elevator of the present utility model in a hoistway at a first exit;
Fig. 3 is a schematic cross-sectional view of the elevator of the present utility model in a hoistway at a second exit;
FIG. 4 is a schematic view of the elevator of the present utility model installed at a first exit;
FIG. 5 is a schematic view of the elevator of the present utility model installed at a second exit;
FIG. 6 is a schematic view of the installation of the first linkage fixed sheave of the present utility model;
FIG. 7 is a schematic view of the mounting of the first linkage stop post of the present utility model;
FIG. 8 is a schematic view of the installation of the first linkage airfoil hook of the present utility model;
in the figure: 1. a hoist; 2. a first outlet; 3. a second outlet; 4. a first protective door; 5. a second protective door; 6. a first linkage mechanism; 601. a fixed pulley; 602. a cable; 603. hanging a lifting hook; 604. a hanging ring; 605. a sliding plate; 606. a limit column; 607. a limit groove; 609. wing type lifting hook; 7. a second linkage mechanism; 701. a stop block; 702. reinforcing ribs; 8. a drive column; 9. a column; 10. and a hoistway.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1 to 5, as a preferable embodiment 1, a safety interlock device for a hoist includes a hoistway 10 vertically arranged and a hoist 1 moving in the hoistway 10, wherein a first outlet 2 and a second outlet 3 are provided on a sidewall of the hoistway 10, the first outlet 2 is located below the second outlet 3, a first protection door 4 is provided at the first outlet 2, a second protection door 5 is provided at the second outlet 3, the first protection door 4 and the second protection door 5 have the same structure, and the first protection door 4 and the second protection door 5 are both opened and closed along a vertical direction;
The two sides of the first protective door 4 are provided with first linkage mechanisms 6, the bottom of the lifting machine 1 is provided with a transmission column 8, and the transmission column 8 is matched with the first protective door 4 through the first linkage mechanisms 6 to open the first protective door 4 in the descending process of the lifting machine 1;
The bottom of the side, close to the hoistway 10, of the second protective door 5 is provided with a second linkage mechanism 7, and during the lifting process of the lifting machine 1, the lifting machine 1 is supported by the top and the second linkage mechanism 7 so as to synchronously move with the second protective door 5.
Embodiment 1 provides a safety interlocking device of a hoist, which ensures safety and convenience by automatically opening and closing a first protective door 4 and a second protective door 5 through the movement of the hoist 1 in a hoistway 10;
in the process that the lifting machine 1 moves upwards, the first protective door 4 is matched with the pulley formed by the first linkage mechanism 6, the transmission column 8 ascends, the first protective door 4 descends until the first protective door 4 bottoms on the first outlet 2, the transmission column 8 is separated from the first linkage mechanism 6 and moves upwards continuously, the top of the lifting machine 1 is matched with the second linkage mechanism 7 in a bearing way, so that the second protective door 5 moves synchronously with the lifting machine 1, and when the lifting machine 1 is lifted to a position flush with the second outlet 3, the second protective door 5 is jacked up to be opened;
When the elevator 1 moves downwards, the second protective door 5 is received at the top of the elevator 1, so that the elevator moves downwards synchronously until the second protective door 5 bottoms out on the second outlet 3, the second protective door 5 is closed, the elevator 1 is separated from the second linkage 7 and moves downwards continuously, the transmission column 8 at the bottom of the elevator 1 is limited and fixed with the first linkage 6, so that the transmission column 8 and the first protective door 4 form pulley fit through the first linkage 6, the transmission column 8 descends while the first protective door 4 ascends, and when the elevator 1 descends to a position flush with the first outlet 2, the first protective door 4 is lifted and opened;
Therefore, when the elevator 1 moves to the corresponding outlet, the protective door of the outlet is automatically opened, and when the elevator 1 leaves the corresponding outlet, the protective door of the outlet is automatically closed, so that the elevator is convenient to use and ensures safety.
As a preferred embodiment 2, the first linkage mechanism 6 is symmetrical with respect to the first protection door 4, and the driving columns 8 are in one-to-one correspondence with the first linkage mechanism 6. The first protection door 4 is ensured to be stressed stably.
As shown in fig. 6 to 8, as a preferred embodiment 3, the first linkage 6 includes a fixed pulley 601 disposed at the top of the first outlet 2, a cable 602 is disposed on the fixed pulley 601, one end of the cable 602 is detachably and fixedly engaged with the first protective door 4 on one side of the fixed pulley 601, the other end of the cable 602 is detachably and fixedly engaged with a sliding plate 605 on the other side of the fixed pulley 601, the sliding plate 605 forms a pulley engagement with the first protective door 4 through the cable 602 and the fixed pulley 601, the sliding plate 605 is slidably engaged with a side wall of the first outlet 2, an airfoil hook 609 is disposed at the bottom of the sliding plate 605, and during the descending process of the elevator 1, the driving post 8 is engaged with the airfoil hook 609 and forms a driving engagement.
Embodiment 3 in the process of lowering the hoist 1, the driving post 8 is connected with the wing type lifting hook 609 to form a driving fit, the wing type lifting hook 609 ensures that the wing type lifting hook 609 is hooked with the bottom of the driving post 8 after being contacted with the driving post 8 to prevent falling, so that the driving post 8 and the sliding plate 605 synchronously move, because the sliding plate 605 forms pulley fit with the first protection door 4 through the cable 602 and the fixed pulley 601, the driving post 8 forms pulley fit with the first protection door 4, when the driving post 8 descends, the first protection door 4 ascends to open, when the driving post 8 ascends, the first protection door 4 descends to close, and the wing type lifting hook 609 ensures that the driving post 8 can be certainly connected and forms limiting fit with the driving post 8 when descending, so that synchronous movement is realized.
As shown in fig. 6 and fig. 7, as a preferred embodiment 4, both ends of the cable 602 are provided with hanging hooks 603, a hanging ring 604 is provided on a side wall of the first protection door 4, a hanging ring 604 is provided in a middle position of a top of the sliding plate 605, the hanging rings 604 are in one-to-one correspondence with the hanging hooks 603, and the hanging hooks 603 are respectively hooked and matched with the corresponding hanging rings 604. Both ends of the convenient cable 602 are respectively fixed with the first protective door 4 and the sliding plate 605, thereby forming pulley cooperation and being convenient for installation and disassembly.
As shown in fig. 7, as a preferred embodiment 5, a limiting groove 607 is provided in the middle position of the sliding plate 605 along the vertical direction, a limiting post 606 is provided in the limiting groove 607, and the limiting post 606 is vertically fixedly matched with the side wall of the first outlet 2, and the limiting groove 607 and the limiting post 606 form a limiting sliding fit under the traction of the cable 602.
In embodiment 5, the sliding plate 605 forms a limit fit with the limit post 606 through the limit groove 607, and under the combined action of the traction force provided by the gravity of the first protection door 4 through the cable 602, the gravity of the sliding plate 605 and the limit fit of the transmission post 8, the sliding plate 605 forms a sliding fit with the limit post 606, and in the overall trend, the sliding plate 605 moves along the limit groove 607 in the vertical direction.
As a preferred embodiment 6, the limit post 606 can be replaced by a slide rail, the slide rail is arranged along the vertical direction, and the slide rail is slidably matched with the limit groove 607, the length of the slide rail is far smaller than that of the limit groove 607, the cost is slightly higher than that of the limit post 606, but the stability is better.
As shown in fig. 5, as a preferred embodiment 7, the second coupling mechanism 7 includes a stopper 701, wherein the stopper 701 is disposed at the bottom of the second protection door 5 near the side of the hoistway 10, and the stopper 701 extends toward the inside of the hoistway 10, and the stopper 701 is parallel to the top of the elevator 1. The stop 701 is convenient to cling to the top of the lifting machine 1, the stability of the bearing and matching is guaranteed, and the second protective door 5 is convenient to jack up.
As a preferred embodiment 8, two blocks 701 are provided in each second linkage 7, the two blocks 701 are symmetrical about the middle position of the second protection door 5, and a reinforcing rib 702 is provided between the upper side of each block 701 and the second protection door 5. Ensure the stability of the block 701 when in receiving and matching, and prevent the block 701 from deforming.
As a preferred embodiment 9, the two sides of the first outlet 2 and the second outlet 3 are vertically provided with upright posts 9, the upright posts 9 are respectively in one-to-one correspondence with the sides of the first protection door 4 and the second protection door 5, the two sides of the first protection door 4 and the second protection door 5 are of a cylindrical structure, and the two sides of the first protection door 4 and the second protection door 5 are sleeved on the corresponding upright posts 9 to form sliding fit. The first and second barrier doors 4 and 5 are ensured to open and close in the vertical direction.
As a preferred embodiment 10, the first protective door 4 and the second protective door 5 each include two cross bars arranged oppositely, a plurality of vertical bars are disposed between the two cross bars at equal intervals, the vertical bars are perpendicular to the two cross bars, and the ends of the cross bars on the same side are fixed on the same barrel structure. The protective properties of the protective door are ensured, preventing people or goods from falling into the hoistway 10.
As a preferred embodiment 11, the hoisting machine may be any one of a hoist basket or a hydraulic lift.
The working principle of the utility model is as follows:
The utility model provides a safety interlocking device of a lifter, which ensures that a first protective door 4 and a second protective door 5 are automatically opened and closed by the movement of the lifter 1 in a well 10, thereby ensuring safety and convenience;
in the process that the lifting machine 1 moves upwards, the first protective door 4 is matched with the pulley formed by the first linkage mechanism 6, the transmission column 8 ascends, the first protective door 4 descends until the first protective door 4 bottoms on the first outlet 2, the transmission column 8 is separated from the first linkage mechanism 6 and moves upwards continuously, the top of the lifting machine 1 is matched with the second linkage mechanism 7 in a bearing way, so that the second protective door 5 moves synchronously with the lifting machine 1, and when the lifting machine 1 is lifted to a position flush with the second outlet 3, the second protective door 5 is jacked up to be opened;
When the elevator 1 moves downwards, the second protective door 5 is received at the top of the elevator 1, so that the elevator moves downwards synchronously until the second protective door 5 bottoms out on the second outlet 3, the second protective door 5 is closed, the elevator 1 is separated from the second linkage 7, the elevator continues to move downwards, the transmission column 8 at the bottom of the elevator 1 is limited and fixed with the first linkage 6, so that the transmission column 8 and the first protective door 4 form pulley fit through the first linkage 6, the first protective door 4 rises while the transmission column 8 descends, and when the elevator 1 descends to a position flush with the first outlet 2, the first protective door 4 is lifted and opened.
Claims (9)
1. The safety interlocking device of the elevator comprises a hoistway (10) which is vertically arranged and an elevator (1) which moves in the hoistway (10), and is characterized in that a first outlet (2) and a second outlet (3) are arranged on the side wall of the hoistway (10), the first outlet (2) is positioned below the second outlet (3), a first protection door (4) is arranged at the first outlet (2), a second protection door (5) is arranged at the second outlet (3), the first protection door (4) and the second protection door (5) are identical in structure, and the first protection door (4) and the second protection door (5) are both opened and closed along the vertical direction;
The two sides of the first protective door (4) are provided with first linkage mechanisms (6), the bottom of the lifting machine (1) is provided with a transmission column (8), and the transmission column (8) forms pulley fit with the first protective door (4) through the first linkage mechanisms (6) in the descending process of the lifting machine (1) so as to open the first protective door (4);
The bottom of one side, close to the well (10), of the second protective door (5) is provided with a second linkage mechanism (7), and in the ascending process of the lifting machine (1), the lifting machine (1) is connected with the second linkage mechanism (7) through the top so as to synchronously move with the second protective door (5).
2. The safety interlocking device of a lifter according to claim 1, characterized in that the first linkage mechanism (6) is symmetrical with respect to the first protective door (4), and the transmission columns (8) are in one-to-one correspondence with the first linkage mechanism (6).
3. The elevator safety interlock according to claim 2, wherein the first linkage mechanism (6) comprises a fixed pulley (601) arranged at the top of the first outlet (2), a cable (602) is arranged on the fixed pulley (601), one end of the cable (602) is detachably and fixedly matched with the first protective door (4) on one side of the fixed pulley (601), the other end of the cable (602) is detachably and fixedly matched with a sliding plate (605) on the other side of the fixed pulley (601), the sliding plate (605) is in pulley matching with the first protective door (4) through the cable (602) and the fixed pulley (601), the sliding plate (605) is in sliding fit with the side wall of the first outlet (2), a wing-shaped lifting hook (609) is arranged at the bottom of the sliding plate (605), and the transmission column (8) is connected with the wing-shaped lifting hook (609) and forms transmission matching in the descending process of the elevator (1).
4. A safety interlocking device for a lifter according to claim 3, characterized in that, both ends of the cable (602) are provided with hanging hooks (603), the side wall of the first protection door (4) is provided with hanging rings (604), the middle position of the top of the sliding plate (605) is provided with hanging rings (604), the hanging rings (604) are in one-to-one correspondence with the hanging hooks (603), and the hanging hooks (603) are respectively in hooking fit with the corresponding hanging rings (604).
5. The safety interlocking device of a lifter according to claim 4, wherein a limiting groove (607) is arranged in the middle position of the sliding plate (605) along the vertical direction, a limiting column (606) is arranged in the limiting groove (607), the limiting column (606) is vertically and fixedly matched with the side wall of the first outlet (2), and the limiting groove (607) and the limiting column (606) form a limiting sliding fit under the traction of the cable (602).
6. A safety interlock for a hoisting machine according to claim 1, characterized in that the second linkage (7) comprises a block (701), the block (701) is arranged at the bottom of the side of the second protection door (5) close to the shaft (10), the block (701) extends towards the shaft (10), and the block (701) is parallel to the top of the hoisting machine (1).
7. The safety interlocking device of a lifter according to claim 6, characterized in that two blocks (701) are arranged in each second linkage mechanism (7), the two blocks (701) are symmetrical with respect to the middle position of the second protective door (5), and a reinforcing rib (702) is arranged between the upper part of each block (701) and the second protective door (5).
8. The elevator safety interlock according to claim 1, wherein the two sides of the first outlet (2) and the second outlet (3) are vertically provided with upright posts (9), the upright posts (9) are respectively in one-to-one correspondence with the side sides of the first protective door (4) and the second protective door (5), the two sides of the first protective door (4) and the second protective door (5) are of a barrel-mounted structure, and the two sides of the first protective door (4) and the second protective door (5) are sleeved on the corresponding upright posts (9) to form sliding fit.
9. The safety interlocking device for a lifter according to any one of claims 1 to 8, wherein the first protective door (4) and the second protective door (5) each comprise two cross bars which are oppositely arranged, a plurality of vertical bars are arranged between the two cross bars at equal intervals, the vertical bars are perpendicular to the two cross bars, and the end parts of the cross bars positioned on the same side are fixed on the same barrel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322514408.8U CN220845038U (en) | 2023-09-15 | 2023-09-15 | Safety interlocking device of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322514408.8U CN220845038U (en) | 2023-09-15 | 2023-09-15 | Safety interlocking device of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220845038U true CN220845038U (en) | 2024-04-26 |
Family
ID=90739872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322514408.8U Active CN220845038U (en) | 2023-09-15 | 2023-09-15 | Safety interlocking device of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220845038U (en) |
-
2023
- 2023-09-15 CN CN202322514408.8U patent/CN220845038U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2349902B1 (en) | Method of installing an elevator | |
| CN201202368Y (en) | Elevating type automatic door | |
| CN111874780B (en) | High-speed elevator decompression kuppe | |
| KR101766914B1 (en) | Upper drive shaft operating system of retractable door-lift vertically for elevator | |
| CN220845038U (en) | Safety interlocking device of elevator | |
| CN208585924U (en) | A kind of elevator to open Door by Hand | |
| CN116464383A (en) | A shield door structure for high-speed railway platform | |
| CN211172080U (en) | Utility tunnel flees for one's life mouthful and utility tunnel | |
| CN114314263A (en) | Sprocket traction type villa elevator | |
| CN115490109A (en) | Lifting device with high safety performance | |
| CN212559061U (en) | Automatic cage door device of auxiliary vertical shaft | |
| CN212389190U (en) | Pneumatic lifting door device | |
| CN203922350U (en) | A kind of elevator | |
| CN211521449U (en) | Automatic locking lifting goods elevator | |
| CN211256143U (en) | Electroplating product production system | |
| CN108584637B (en) | Elevator device | |
| CN208454198U (en) | A kind of elevator emergency stop device | |
| CN2541419Y (en) | Construction elevator | |
| EP3553013A2 (en) | Lifting system | |
| CN219955233U (en) | Conical lifting lighthouse | |
| CN219754436U (en) | A shield door structure for high-speed railway platform | |
| CN205045656U (en) | Engagement type elevator of lead screw | |
| CN211899935U (en) | Lifting type base station | |
| CN211169459U (en) | Automatic cage curtain door of cage for auxiliary shaft | |
| CN2554145Y (en) | Chain-type elevator for lower-building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |