CN117775920A - Elevator safety tongs aggregate unit - Google Patents
Elevator safety tongs aggregate unit Download PDFInfo
- Publication number
- CN117775920A CN117775920A CN202410150075.1A CN202410150075A CN117775920A CN 117775920 A CN117775920 A CN 117775920A CN 202410150075 A CN202410150075 A CN 202410150075A CN 117775920 A CN117775920 A CN 117775920A
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- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 abstract description 31
- 239000010959 steel Substances 0.000 abstract description 31
- 230000000694 effects Effects 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention provides an elevator safety tongs linkage device, which relates to the field of linkage devices and comprises a base, wherein a base main body is of a rectangular plate-shaped structure, a fixing frame is arranged on the upper end face of the base, a wire coiling wheel is rotatably connected inside the fixing frame, and four baffles are fixedly arranged on the front end face of the wire coiling wheel in an annular shape. According to the invention, the outer end surface of the fastening block is provided with the groove, so that the contact area with the steel cable can be increased, the friction force is increased, the inner surface of the groove is uniformly provided with the fixing disc with the arc-shaped structure, the inner end surface of the fixing disc is uniformly provided with the clamping nails, the front end conical part of each clamping nail can be inserted into the steel cable, the stability of the steel cable between the two fastening blocks is improved, the conical part of each clamping nail faces downwards, the conical direction of each clamping nail is consistent with the action of gravity, the damage of the clamping nails to the steel cable can be reduced, and the problems that the friction force between the steel cable and the fastening block is small when the two fastening blocks fix the steel cable and the car braking effect is limited are solved.
Description
Technical Field
The invention relates to the technical field of linkage devices, in particular to an elevator safety tongs linkage device.
Background
When serious faults such as overspeed and rope breakage occur in the elevator, the safety tongs of the elevator can carry out emergency braking on the elevator car and clamp the elevator car on the guide rail to ensure the running safety of the positive elevator, but the prior safety tongs have some defects in use.
The patent of reference application number CN202210292669.7 discloses an elevator safety tongs-overspeed governor aggregate unit, which comprises a bracket, rotation drive arrangement, the axis of rotation, link gear, safety tongs mechanism, speed detection mechanism and controller, safety tongs mechanism sets up in the both ends of support in pairs, including the base, control shaft and safety tongs piece, the control shaft rotates with the base to be connected, the control shaft processing has worm and the worm wheel cooperation of base, the worm wheel passes through the pull rod to drive the safety tongs voussoir, the both sides of axis of rotation are connected with the linking arm through link gear respectively, rotation drive arrangement drive axis of rotation pull down or lift control arm makes the control shaft rotate, drive safety tongs piece folds or separates, speed detection mechanism is connected with the controller and is used for detecting elevator car's speed and/or acceleration, the controller is connected control rotation drive arrangement corotation or reversal with rotation drive arrangement. The invention realizes the non-contact resetting of the safety tongs, is convenient for the operation of overhaulers and improves the safety guarantee.
Based on the search of the patent and combining the use condition of the existing safety tongs, the prior safety tongs linkage device is found to be in use, because the steel cable main body is in a cylindrical structure, the outer part of the steel cable is arc-shaped, so that the friction force between the steel cable and the fastening blocks is smaller when the two fastening blocks are used for fixing the steel cable, and the braking effect on the car is limited.
Disclosure of Invention
In view of the above, the invention provides an elevator safety tongs linkage device, the outer end surface of the fastening block is provided with the groove, the contact area with a steel cable can be increased, the friction force is increased, the inner surface of the groove is uniformly provided with the fixing disc with an arc-shaped structure, the inner end surface of the fixing disc is uniformly provided with the clamping nail, the front conical part of the clamping nail can be inserted into the steel cable, the stability of the steel cable between the two fastening blocks is improved, the conical part of the clamping nail faces downwards, the conical direction of the clamping nail is consistent with the action of gravity, and the damage of the clamping nail to the steel cable can be reduced.
The invention provides the purpose and the efficacy of an elevator safety gear linkage device, which particularly comprises a base;
the base body is of a rectangular plate-shaped structure, a fixing frame is mounted on the upper end face of the base, a wire coiling wheel is rotatably connected inside the fixing frame, and four baffles are fixedly mounted on the front end face of the wire coiling wheel in an annular shape;
the controller is fixedly arranged on the surface of the front end side plate of the fixing frame, a driving shaft at the front end of the controller is fixedly connected with the connecting rod, the connecting rod is positioned on the front end surface of the wire coiling wheel, and a connecting plate is fixedly arranged on one side of the outer end of the connecting rod;
the fixing frame body is of an inverted U-shaped structure, and a threading hole is formed in the surface of a top plate of the fixing frame;
the connecting transverse plates are symmetrically arranged, the connecting transverse plate main bodies are arranged in an inclined structure, the upper end faces of the connecting transverse plates are fixedly connected with the top plate of the fixed frame, and the lower end faces of the connecting transverse plates are fixedly connected with the side plates of the fixed frame;
the outer end face of the fastening block is of a horizontal structure, the inner end face of the fastening block is of an inclined structure, and the inner end face of the fastening block is fixedly provided with a limiting clamping block;
the lifting block body is of a rectangular plate-shaped structure, and a fixing rod is fixedly arranged in the middle of the upper end face of the lifting block;
the connecting rope, the bottom surface and the dead lever fixed connection of connecting rope, the up end and the connecting plate fixed connection of connecting rope.
Further, a plug is fixedly arranged on one side of the inner end of the connecting rod, and the outer end face of the plug is of an arc-shaped structure.
Further, the roof surface fixed mounting of fixed frame has a spacing section of thick bamboo, and the outside circumference of dead lever is even installs the arc strip, and dead lever and arc strip slip clamping are inside a spacing section of thick bamboo.
Further, the outer end face of the connecting transverse plate is provided with a transverse chute, and the limiting clamping blocks on the surface of the fastening block are slidably clamped in the transverse chute on the surface of the connecting transverse plate.
Further, the middle position of the outer end surface of the fastening block is provided with a groove, the surface of the groove is uniformly provided with a fixing disc, and the fixing disc body is of an arc-shaped structure.
Further, the surface of the fixed disc is uniformly provided with the clamping nails, the clamping nails are of an inclined structure, and the conical parts of the clamping nails face downwards.
Further, the outer end face of the fastening block is fixedly provided with a fixed shaft, and a rocker is sleeved outside the fixed shaft.
Further, the rocker main body is of a strip-shaped structure, and the upper end part of the rocker is rotationally connected to the outside of the lifting block.
The invention provides an elevator safety tongs linkage device, which has the beneficial effects that:
1. according to the invention, through the arrangement that the driving shaft at the front end is fixedly connected with the connecting rod, when the elevator car is abnormal, the controller can drive the connecting rod to rotate, the plug at one end at the inner side of the connecting rod rotates towards the center of the wire coiling wheel, the plug can block the baffle plate to prevent the wire coiling wheel from rotating, the elevator car can be prevented from falling rapidly, and when the elevator car is in normal operation, the plug at one end at the inner side of the connecting rod is positioned at the outer position of the baffle plate on the surface of the wire coiling wheel, and the wire coiling wheel can rotate normally.
2. The fixed rod is connected with the connecting plate through connecting the rope, when the plug of connecting rod inboard one end is rotatory downwards, the connecting plate of connecting rod outer end one side can upward movement, the connecting plate can drive the fixed rod upward movement, still rotate with the lifter through the upper end of rocker and be connected, the lower extreme of rocker rotates the setting of being connected with the fixed axle, when making the lifter along with the fixed rod upward movement, two fastening blocks also can be along the surface upward movement of connecting the diaphragm, and two fastening blocks can clamp each other, fix the elevator steel cable between two fastening blocks, prevent the quick landing of car, and realize the fixed to the car.
3. The outer end surface of the fastening block is provided with the groove, the contact area with the steel cable can be increased, the friction force is increased, the inner surface of the groove is uniformly provided with the fixing disc with the arc-shaped structure, the inner end surface of the fixing disc is uniformly provided with the clamping nail, the front end conical part of the clamping nail can be inserted into the steel cable, the stability of the steel cable between the two fastening blocks is improved, the conical part of the clamping nail faces downwards, the conical direction of the clamping nail is consistent with the action of gravity, and the damage of the clamping nail to the steel cable can be reduced.
4. The arc strip is evenly installed to the outside circumference of dead lever to dead lever and arc strip slide joint block dress in spacing section of thick bamboo jointly, through the setting of arc strip, make the dead lever when up-and-down motion, the arc strip can play spacing effect, and the dead lever can not take place the phenomenon of horizontal deflection in the motion.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
The drawings described below are only for illustration of some embodiments of the invention and are not intended to limit the invention.
In the drawings:
FIG. 1 is a schematic view of the overall device structure of the present invention;
FIG. 2 is a schematic view of the structure of the fixing frame and the connecting cross plate of the present invention;
FIG. 3 is a schematic view of the structure of the fastening block and the lifting block of the present invention;
FIG. 4 is a schematic view of the connection structure of the fastening block, the rocker and the lifting block;
FIG. 5 is a schematic view of the structure of the fastening block and the fixed disk of the present invention;
FIG. 6 is a schematic view of a partially enlarged structure of FIG. 5A according to the present invention;
FIG. 7 is a schematic view of the structure of the connecting rod and the wire coiling wheel of the invention;
FIG. 8 is a schematic diagram of the structure of the reel and the fixing frame of the present invention;
FIG. 9 is a schematic diagram of the front view of the fixed frame and the connecting rod of the present invention;
FIG. 10 is a schematic view of the structure of the connecting rod, plug and connecting plate of the present invention.
List of reference numerals:
1. a base; 101. a fixing frame; 2. a wire coiling wheel; 201. a baffle; 3. a controller; 4. a connecting rod; 401. a plug; 402. a connecting plate; 5. a fixed frame; 501. a threading hole; 502. a limiting cylinder; 6. a connecting transverse plate; 601. a transverse chute; 7. a fastening block; 701. limiting clamping blocks; 702. a groove; 703. a fixed shaft; 8. a lifting block; 801. a fixed rod; 8011. an arc-shaped strip; 9. a rocker; 10. a fixed plate; 1001. a staple; 11. and (5) connecting ropes.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments of the present invention.
Embodiment one: please refer to fig. 1 to 10:
the invention provides an elevator safety gear linkage device, which comprises a base 1;
the main body of the base 1 is of a rectangular plate-shaped structure, a fixing frame 101 is arranged on the upper end surface of the base 1, a wire coiling wheel 2 is rotatably connected inside the fixing frame 101, and four baffles 201 are fixedly arranged on the front end surface of the wire coiling wheel 2 in an annular shape;
the controller 3 is fixedly arranged on the surface of the front end side plate of the fixed frame 101, a driving shaft at the front end of the controller 3 is fixedly connected with the connecting rod 4, the connecting rod 4 is positioned on the front end surface of the wire coiling wheel 2, and a connecting plate 402 is fixedly arranged on one side of the outer end of the connecting rod 4;
the fixing frame 5 is of an inverted U-shaped structure, and a threading hole 501 is formed in the surface of a top plate of the fixing frame 5;
the connecting transverse plates 6 are symmetrically arranged, the connecting transverse plates 6 are arranged in an inclined structure, the upper end faces of the connecting transverse plates 6 are fixedly connected with the top plate of the fixed frame 5, and the lower end faces of the connecting transverse plates 6 are fixedly connected with the side plates of the fixed frame 5;
the outer end surface of the fastening block 7 is of a horizontal structure, the inner end surface of the fastening block 7 is of an inclined structure, and a limiting clamping block 701 is fixedly arranged on the inner end surface of the fastening block 7;
the lifting block 8, the main body of the lifting block 8 is of a rectangular plate-shaped structure, and a fixing rod 801 is fixedly arranged in the middle of the upper end surface of the lifting block 8;
the connecting rope 11, the lower terminal surface and the dead lever 801 fixed connection of connecting rope 11, the up end and the connecting plate 402 fixed connection of connecting rope 11.
Wherein, inner end one side fixed mounting of connecting rod 4 has plug 401, the outer terminal surface of plug 401 is arc structure, in the use, connecting rod 4 is located the front position of dish line wheel 2, when the car normal operating of elevator, the plug 401 of the inboard one end of connecting rod 4 is located the outside position of dish line wheel 2 surface baffle 201, dish line wheel 2 can normally rotate, after the car appears unusual, controller 3 receives the signal, controller 3 can drive connecting rod 4 and rotate, the plug 401 of the inboard one end of connecting rod 4 rotates to the central point of dish line wheel 2 this moment, and plug 401 can block baffle 201, the rotation of dish line wheel 2 has been prevented, can avoid the quick landing of car.
Wherein, transverse runner 601 has been seted up to the outer terminal surface of connecting diaphragm 6, and the spacing clamp splice 701 slip cartridge of fastening piece 7 surface is in the transverse runner 601 of connecting diaphragm 6 surface, in the use, has seted up transverse runner 601 through the surface of connecting diaphragm 6 to the setting of spacing clamp splice 701 slip cartridge in transverse runner 601 of fastening piece 7 surface makes fastening piece 7 can carry out the up-and-down motion along connecting diaphragm 6.
Wherein, recess 702 has been seted up to the outer end surface intermediate position of fastening piece 7, and fixed disk 10 is evenly installed on the surface of recess 702, and fixed disk 10 main part is the arc structure, and the outer terminal surface fixed mounting of fastening piece 7 has fixed axle 703, and the rocker 9 has been cup jointed to the fixed axle 703 outside, and the rocker 9 main part is rectangular form structure, and the upper end portion rotation of rocker 9 is connected in the outside of lifter 8.
By adopting the scheme, the technical effects brought are as follows: the fixed rod 801 is connected with the connecting plate 402 through the connecting rope 11, when the plug 401 at one end of the inner side of the connecting rod 4 rotates downwards, the connecting plate 402 at one side of the outer end of the connecting rod 4 moves upwards, the connecting plate 402 can drive the fixed rod 801 to move upwards when moving upwards, the upper end of the rocker 9 is rotationally connected with the lifting block 8, the lower end of the rocker 9 is rotationally connected with the fixed shaft 703, therefore, when the lifting block 8 moves upwards along with the fixed rod 801, the two fastening blocks 7 also move upwards along the surface of the connecting transverse plate 6, the two fastening blocks 7 clamp each other, an elevator steel cable between the two fastening blocks 7 is fixed, the rapid drop of a car is prevented, and the fixation of the car is realized.
Embodiment two: the invention provides an elevator safety gear linkage device, which is based on the first embodiment, as shown in fig. 1-10, and further comprises: wherein, staple 1001 is uniformly installed on the surface of fixed disk 10, staple 1001 is in a slant structure, and the tapered portion of staple 1001 faces downward.
By adopting the scheme, the technical effects brought are as follows: when two fastening blocks 7 are fixed to the steel cable, the outer end surface of the fastening block 7 is provided with the groove 702, through the arrangement of the groove 702, the contact area with the steel cable can be increased, the friction force is increased, the fixing disc 10 with the arc-shaped structure is uniformly arranged on the inner surface of the groove 702, the clamp 1001 is uniformly arranged on the inner end surface of the fixing disc 10, the front end conical part of the clamp 1001 can be inserted into the steel cable, the stability of the steel cable between the two fastening blocks 7 is improved, the conical part of the clamp 1001 faces downwards, the conical direction of the clamp 1001 is consistent with the action of gravity, and the damage of the clamp 1001 to the steel cable can be reduced.
Embodiment III: the invention provides an elevator safety gear linkage device, which is based on the first embodiment, as shown in fig. 1-10, and further comprises: the roof surface fixed mounting of fixed frame 5 has spacing section of thick bamboo 502, and the outside circumference of dead lever 801 is even installs arc strip 8011, and dead lever 801 and arc strip 8011 slip cartridge are inside spacing section of thick bamboo 502, in the use, the outside circumference of dead lever 801 is even installs arc strip 8011 to dead lever 801 and arc strip 8011 slip cartridge jointly is in spacing section of thick bamboo 502, through the setting of arc strip 8011, when making dead lever 801 up-and-down motion, arc strip 8011 can play spacing effect, and the phenomenon of deflection about can not taking place in the motion of dead lever 801.
Specific use and action of the embodiment: in the invention, the connecting rod 4 is positioned in front of the wire coiling wheel 2, when the elevator car of the elevator runs normally, the plug 401 at one end of the inner side of the connecting rod 4 is positioned at the outer position of the baffle 201 on the surface of the wire coiling wheel 2, the wire coiling wheel 2 can rotate normally, when the elevator car is abnormal, the controller 3 receives a signal, the controller 3 can drive the connecting rod 4 to rotate, at the moment, the plug 401 at one end of the inner side of the connecting rod 4 rotates towards the center of the wire coiling wheel 2, the plug 401 can block the baffle 201, the rotation of the wire coiling wheel 2 is prevented, the rapid falling of the elevator car can be avoided, the transverse sliding groove 601 is formed on the surface of the connecting transverse plate 6, the limiting clamp block 701 on the surface of the fastening block 7 is arranged in the transverse sliding groove 601 in a sliding manner, the fastening block 7 can move up and down along the connecting transverse plate 6, the fixing rod 801 and the connecting plate 402 are connected through the connecting rope 11, when the plug 401 at one end of the inner side of the connecting rod 4 rotates downwards, the connecting plate 402 at one side of the outer end of the connecting rod 4 moves upwards, the fixing rod 801 can be driven to move upwards when the connecting plate 402 moves upwards, the upper end of the rocker 9 is rotationally connected with the lifting block 8, the lower end of the rocker 9 is rotationally connected with the fixing shaft 703, therefore, when the lifting block 8 moves upwards along with the fixing rod 801, the two fastening blocks 7 also move upwards along the surface of the connecting transverse plate 6, the two fastening blocks 7 are mutually clamped, an elevator steel cable between the two fastening blocks 7 is fixed, the rapid falling of the elevator car is prevented, the fixing of the elevator car is realized, when the two fastening blocks 7 fix the steel cable, the outer end surface of the fastening block 7 is provided with the groove 702, the contact area with the steel cable can be increased through the arrangement of the groove 702, and the friction force is increased, the fixed disk 10 of arc structure is evenly installed to the internal surface of recess 702, the even staple 1001 of installing of interior terminal surface of fixed disk 10, the front end conical portion of staple 1001 can peg graft inside the steel cable, improve the stability of steel cable between two fastening blocks 7, the conical portion of staple 1001 is down, the toper orientation of staple 1001 is unanimous with the action of gravity, can reduce the harm of staple 1001 to the steel cable, the even arc strip 8011 of installing of the outside circumference of dead lever 801, and dead lever 801 and arc strip 8011 joint slip cartridge are in spacing section of thick bamboo 502, through the setting of arc strip 8011, make dead lever 801 when up-and-down motion, arc strip 8011 can play spacing effect, the phenomenon of deflection about can not taking place in the motion of dead lever 801.
Claims (8)
1. The elevator safety tongs linkage device is characterized by comprising a base (1), wherein the main body of the base (1) is of a rectangular plate-shaped structure, a fixing frame (101) is installed on the upper end face of the base (1), a wire coiling wheel (2) is rotatably connected inside the fixing frame (101), and four baffles (201) are fixedly installed on the front end face of the wire coiling wheel (2) in an annular shape; the controller (3), the front end curb plate surface of said controller (3) fixed mounting in fixing frame (101), the drive shaft of the front end of the controller (3) is fixedly connected with tie rod (4), tie rod (4) locate at the front end face of the reel (2), one side of outer end of tie rod (4) fixedly installs the connecting plate (402); the fixing frame (5), the main body of the fixing frame (5) is of an inverted U-shaped structure, and a threading hole (501) is formed in the surface of the top plate of the fixing frame (5); the connecting transverse plates (6) are symmetrically arranged, the connecting transverse plates (6) are arranged in an inclined structure, the upper end faces of the connecting transverse plates (6) are fixedly connected with the top plate of the fixed frame (5), and the lower end faces of the connecting transverse plates (6) are fixedly connected with the side plates of the fixed frame (5); the outer end face of the fastening block (7) is of a horizontal structure, the inner end face of the fastening block (7) is of an inclined structure, and a limiting clamping block (701) is fixedly arranged on the inner end face of the fastening block (7); the lifting block (8), the main body of the lifting block (8) is of a rectangular plate-shaped structure, and a fixing rod (801) is fixedly arranged in the middle of the upper end surface of the lifting block (8); the connecting rope (11), the lower terminal surface and the dead lever (801) fixed connection of connecting rope (11), the up end and the connecting plate (402) fixed connection of connecting rope (11).
2. An elevator safety gear linkage as defined in claim 1, wherein: a plug (401) is fixedly arranged at one side of the inner end of the connecting rod (4), and the outer end face of the plug (401) is of an arc-shaped structure.
3. An elevator safety gear linkage as defined in claim 1, wherein: the top plate surface fixed mounting of fixed frame (5) has spacing section of thick bamboo (502), and arc strip (8011) are evenly installed to the outside circumference of dead lever (801), and dead lever (801) and arc strip (8011) slip clamping are in spacing section of thick bamboo (502) inside.
4. An elevator safety gear linkage as defined in claim 1, wherein: the outer end face of the connecting transverse plate (6) is provided with a transverse chute (601), and a limiting clamping block (701) on the surface of the fastening block (7) is slidably clamped in the transverse chute (601) on the surface of the connecting transverse plate (6).
5. An elevator safety gear linkage as defined in claim 1, wherein: the middle position of the outer end surface of the fastening block (7) is provided with a groove (702), a fixing disc (10) is uniformly arranged on the surface of the groove (702), and the main body of the fixing disc (10) is of an arc-shaped structure.
6. An elevator safety gear linkage as defined in claim 5, wherein: the surface of the fixed disc (10) is uniformly provided with the clamping nails (1001), the clamping nails (1001) are of an inclined structure, and the conical parts of the clamping nails (1001) face downwards.
7. An elevator safety gear linkage as defined in claim 1, wherein: the outer end face of the fastening block (7) is fixedly provided with a fixed shaft (703), and a rocker (9) is sleeved outside the fixed shaft (703).
8. An elevator safety gear linkage as defined in claim 7, wherein: the main body of the rocker (9) is of a strip-shaped structure, and the upper end part of the rocker (9) is rotationally connected to the outside of the lifting block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410150075.1A CN117775920B (en) | 2024-02-02 | 2024-02-02 | Elevator safety tongs aggregate unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410150075.1A CN117775920B (en) | 2024-02-02 | 2024-02-02 | Elevator safety tongs aggregate unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117775920A true CN117775920A (en) | 2024-03-29 |
| CN117775920B CN117775920B (en) | 2024-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410150075.1A Active CN117775920B (en) | 2024-02-02 | 2024-02-02 | Elevator safety tongs aggregate unit |
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| Country | Link |
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| CN (1) | CN117775920B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100609009B1 (en) * | 2006-04-03 | 2006-08-09 | 덕 규 김 | Safety device for an elevator |
| CN103991769A (en) * | 2014-05-28 | 2014-08-20 | 六安市鸿兴精密机械有限公司 | Falling prevention device |
| CN107473049A (en) * | 2017-09-11 | 2017-12-15 | 恒达富士电梯有限公司 | A kind of elevator safety clamp device |
| CN114455423A (en) * | 2022-03-24 | 2022-05-10 | 常熟理工学院 | Elevator safety tongs-speed limiter linkage device |
-
2024
- 2024-02-02 CN CN202410150075.1A patent/CN117775920B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100609009B1 (en) * | 2006-04-03 | 2006-08-09 | 덕 규 김 | Safety device for an elevator |
| CN103991769A (en) * | 2014-05-28 | 2014-08-20 | 六安市鸿兴精密机械有限公司 | Falling prevention device |
| CN107473049A (en) * | 2017-09-11 | 2017-12-15 | 恒达富士电梯有限公司 | A kind of elevator safety clamp device |
| CN114455423A (en) * | 2022-03-24 | 2022-05-10 | 常熟理工学院 | Elevator safety tongs-speed limiter linkage device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117775920B (en) | 2024-06-14 |
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