CN111173858B - A heavy-duty centrifugal trigger safety lock - Google Patents
A heavy-duty centrifugal trigger safety lock Download PDFInfo
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- CN111173858B CN111173858B CN202010145609.3A CN202010145609A CN111173858B CN 111173858 B CN111173858 B CN 111173858B CN 202010145609 A CN202010145609 A CN 202010145609A CN 111173858 B CN111173858 B CN 111173858B
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- panel
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- centrifugal
- safety lock
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- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
- F16D59/02—Self-acting brakes, e.g. coming into operation at a predetermined speed spring-loaded and adapted to be released by mechanical, fluid, or electromagnetic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
- F16D2127/02—Release mechanisms
- F16D2127/04—Release mechanisms for manual operation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Emergency Lowering Means (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
本发明属于建筑机械高空作业安全装置技术领域，特别涉及一种重型离心触发式安全锁，包括面板，面板上设有进绳口、出绳口以及钢丝绳通道，钢丝绳通道的一侧设有位于面板内的压绳机构，另一侧设有转动连接在面板上的离心触发机构，面板上还设有开闭锁机构，离心触发机构在触发状态时与开闭锁机构传动连接，面板内设有位于压绳机构下方的导向轴和基座，基座上开设有围绕在钢丝绳通道外的楔形槽，导向轴与钢丝绳通道相平行，且固定安装在基座的顶部，导向轴上滑动穿传设有与基座滑动连接的锁绳机构，锁绳机构用于夹紧或者放开钢丝绳，并与开闭锁机构相抵触。本发明解决了如何减少安全锁触发时所受的冲击力，并使其均匀受力的技术问题。
The present invention belongs to the technical field of safety devices for high-altitude operations of construction machinery, and particularly relates to a heavy-duty centrifugal-triggered safety lock, comprising a panel, a rope inlet, a rope outlet and a wire rope channel are provided on the panel, a rope pressing mechanism located in the panel is provided on one side of the wire rope channel, a centrifugal trigger mechanism rotatably connected to the panel is provided on the other side, and an opening and closing lock mechanism is also provided on the panel, the centrifugal trigger mechanism is transmission-connected with the opening and closing lock mechanism in the triggered state, a guide shaft and a base located below the rope pressing mechanism are provided in the panel, a wedge-shaped groove surrounding the outside of the wire rope channel is provided on the base, the guide shaft is parallel to the wire rope channel and is fixedly installed on the top of the base, a rope locking mechanism is slidably passed through the guide shaft and is slidably connected to the base, the rope locking mechanism is used to clamp or release the wire rope and conflicts with the opening and closing lock mechanism. The present invention solves the technical problem of how to reduce the impact force received by the safety lock when it is triggered and make it evenly stressed.
Description
Technical Field
The invention belongs to the technical field of safety devices for high-altitude operation of construction machinery, and particularly relates to a heavy centrifugal trigger type safety lock.
Background
With the development of construction mechanization, more and more aerial work devices have been developed, wherein a centrifugal safety lock is one of core components for securing the aerial work device. The rope locking mechanisms of the conventional centrifugal safety lock are designed by the principle of boosting quadrangles and adopt the mode of rope clamps, sleeve plates, connecting pieces and springs for linkage, and the centrifugal safety lock has the defects that firstly, the semicircular bosses of the rope clamps are smaller, so that the centrifugal safety lock is unevenly stressed and can only be applied to the middle load field to the greatest extent, and secondly, the centrifugal safety lock lacks a buffer part, so that the impact force applied during triggering is larger and the centrifugal safety lock is easy to damage.
Disclosure of Invention
In view of the shortcomings of the background art, the invention provides a centrifugal touch safety lock, which aims to solve the technical problem of effectively reducing the impact force applied to the heavy centrifugal touch safety lock during triggering and enabling the heavy centrifugal touch safety lock to be uniformly stressed.
The heavy centrifugal triggering type safety lock comprises a panel, wherein a rope inlet, a rope outlet and a steel wire rope channel communicated with the rope inlet and the rope outlet are formed in the panel, a rope pressing mechanism positioned in the panel is arranged on one side of the steel wire rope channel, a centrifugal triggering mechanism corresponding to the rope pressing mechanism is arranged on the other side of the steel wire rope channel, the centrifugal triggering mechanism is rotatably connected to the panel, an unlocking and locking mechanism is further arranged on the panel, the centrifugal triggering mechanism is in transmission connection with the unlocking and locking mechanism in a triggering state, a guide shaft and a base are arranged in the panel, the guide shaft is positioned below the rope pressing mechanism, a wedge-shaped groove surrounding the steel wire rope channel is formed in the base, the guide shaft is parallel to the steel wire rope channel, the guide shaft is fixedly arranged at the top of the base, a locking mechanism which is in sliding penetrating connection with the base is used for clamping or releasing the steel wire rope, and the locking mechanism is in sliding contact with the unlocking and locking mechanism.
Further, the method comprises the steps of,
The rope locking mechanism comprises a sliding plate, the sliding plate is arranged on a guide shaft in a sliding sleeved mode and is in sliding connection with the base, wedge blocks which are symmetrically arranged on two sides of the steel wire rope channel are arranged on the sliding plate, the far-away surfaces of the two wedge blocks are respectively attached to inclined surfaces of the corresponding wedge grooves and are in sliding connection with the wedge grooves, a bracket arranged below the base is connected to the bottom of the sliding plate, the top end of the bracket extends out of the panel, a plurality of rectangular holes are formed in the bracket, square pins and buffer blocks adhered to the square pins are sequentially arranged in the rectangular holes, the square pins are far away from the base and are movably connected to the panel, and the bottom end of the bracket extends out of the panel. Compared with the conventional rope locking mechanism, the rope locking mechanism has the advantages of stability, balanced stress and obvious reduction of stress concentration, so that the rope locking mechanism is more suitable for heavy equipment. It is expected that the centrifugal trigger safety lock can carry a weight in the range of (1000-2000 kg), whereas the centrifugal trigger safety locks of the prior art can only reach a weight of (1000 kg) at most.
Arc grooves are respectively formed in opposite surfaces of the two wedge blocks.
The unlocking and locking mechanism comprises an unlocking shaft, a top block, a sliding sleeve, a deflector rod and a rope locking spring, wherein the rope locking spring is sleeved on the guide shaft, two ends of the rope locking spring are respectively abutted to the sliding plate and the base, the unlocking shaft vertically stretches into the panel through the sliding sleeve, the unlocking shaft is positioned at one end outside the panel, the deflector rod is arranged at the other end of the unlocking shaft, the deflector rod is sleeved on the other end of the unlocking shaft, and the deflector rod is abutted to the sliding plate.
The panel is provided with a limit screw on the surface where the deflector rod is located, a matched housing is covered above the panel, a window and an unlocking handle positioned on one side of the window are arranged on the housing, and the unlocking handle is connected with the unlocking shaft.
The top block is a cam with a big top and a small bottom.
The centrifugal trigger mechanism comprises a rotary support, the rotary support rotates and stretches into the panel, a speed measuring wheel is sleeved on one end of the rotary support, which is positioned in the panel, a pair of symmetrically arranged throwing blocks are hinged on the other end of the rotary support, and an adjusting spring is connected between the free ends of the throwing blocks.
The outer peripheral surface of the speed measuring wheel is provided with a V-shaped groove.
The rope pressing mechanism comprises a clamping plate, one end of the clamping plate is hinged to the panel, a rope pressing wheel is rotatably arranged at the other end of the clamping plate, and a compression spring is abutted between the middle part of the clamping plate and the side wall of the panel.
An arc-shaped groove is formed in the outer peripheral surface of the rope pressing wheel.
The heavy centrifugal trigger type safety lock has the advantages that the part of the rope locking mechanism for clamping the steel wire rope is arranged as the wedge blocks symmetrically arranged on the two sides of the steel wire rope channel, so that the technical effect of enabling the heavy centrifugal trigger type safety lock to be stressed uniformly is achieved, the buffer pad is additionally arranged in the rope locking mechanism, the acting force generated by the buffer pad is opposite to the impact force born by the heavy centrifugal trigger type safety lock during triggering, and therefore the technical effect of effectively reducing the impact force born by the heavy centrifugal trigger type safety lock during triggering is achieved, and the safety lock, the equipment and the steel wire rope are protected. Compared with the prior art, the device has the advantages of simple structure, small stress concentration and long service life, and is more suitable for the field of heavy load.
Drawings
FIG. 1 is a cross-sectional view of a housing of the present invention in one embodiment;
FIG. 2 is a cross-sectional view of section A-A of the present invention in one embodiment;
FIG. 3 is a front view of the present invention in one embodiment;
FIG. 4 is a schematic diagram of an unlocking state of the present invention in an embodiment;
FIG. 5 is a schematic diagram showing a locked state of the present invention in one embodiment;
The reference numerals indicate that 1-rope inlet, 2-throwing block, 3-speed regulating spring, 4-regulating cap, 5-mounting pin, 6-deflector rod, 7-limit screw, 8-bracket, 9-rotating bracket, 10-bearing, 11-housing, 12-front panel, 13-rear panel, 14-speed measuring wheel, 15-guiding shaft, 16-rope locking spring, 17-base, 18-window, 19-unlocking handle, 20-square pin, 21-buffer block, 22-guiding pin, 23-wedge block, 24-sliding plate, 25-clamping plate, 26-rope pressing spring, 27-rope pressing wheel, 28-jacking block, 29-round pin and 30-unlocking shaft.
Detailed description of the preferred embodiments
The invention is further described below with reference to the drawings and the detailed description.
The heavy centrifugal triggering type safety lock comprises a panel formed by connecting a front panel 12 and a rear panel 13, wherein a rope inlet 1 is formed in the top of the panel, a rope outlet opposite to the rope inlet 1 and a steel wire rope channel communicated with the rope inlet 1 and the rope outlet are formed in the bottom of the panel, a speed measuring roller 14, a rope pressing wheel 27, a clamping plate 25, a rope pressing spring 26, a top block 28, a guide shaft 15, a base 17, a sliding plate 24, two wedge blocks 23 and a bracket 8 are arranged in the interior of the panel, the middle of the clamping plate 25 is connected to the inner side wall of the panel through the rope pressing spring 26, one end of the clamping plate is rotatably connected to the inner wall of the panel through a pin, the other end of the clamping plate is rotatably connected to a rope pressing wheel 27 through the free end of the pressing spring, the rope pressing wheel 27 can rotate around a pin hole of the clamping plate 25, arc grooves are formed in the outer peripheral surface of the rope pressing wheel 27 and are correspondingly arranged on two sides of the steel wire rope channel, the rope pressing wheel 14 are pressed towards the wheel 14 under the action of the rope pressing spring 26, V-shaped grooves are formed in the outer peripheral surface of the speed measuring wheel 14, the rope pressing wheel 14 and are fixed to the inner peripheral surface of the rotating support 9, one end of the rotating support 9 stretches into the panel, the front panel through the rotating support 9 and the front side of the rotating support 2 is rotatably arranged on the front side of the panel through the rotating support 2, the rotating support 2 and the front side of the rotating support 2 is provided with a pair of the swinging cover 2, the outer side of the rotating support 2 is provided with the vibration damper 2, the front window 11 is rotatably and the front window 2 is arranged, and the front one end is rotatably is connected to the front and is opposite to the front side of the front panel through the front panel 2 and is rotatably and is provided with the front face 2 and is provided with the front and 2. The front panel 12 is also provided with a deflector rod 6 at the same height with the external teeth of the throwing block 2, the deflector rod 6 is connected to an unlocking shaft 30, the unlocking shaft 30 is arranged on the two panels through a sliding sleeve, one end of the unlocking shaft extends into the panel to be provided with a top block 28, and the other end extends out of the housing 11 to be provided with an unlocking handle 19. The front panel 12 is also provided with a limit screw 7 which is positioned in the area between the unlocking shaft 30 and the throwing block 2 and limits the rotation range of the deflector rod 6 under the action of a torsion spring. The top block 28 is a cam with a large upper part and a small lower part, the top block 28 is abutted against the upper part of the sliding plate 24, the base 17 is positioned below the tachometer wheel 14 and is fixed between the inner side walls of the panel through 4 round pins 29, the base 17 is provided with a wedge groove surrounding the outside of a steel wire rope channel, the bottom of the wedge groove is provided with a laterally symmetrical inclined long hole and a laterally long hole, two wedge blocks 23 are correspondingly abutted against the two inclined surfaces of the wedge groove, the opposite surfaces of the two wedge blocks 23 are provided with arc grooves with a narrow upper part and a wide lower part and a laterally symmetrical left and right part and are connected with the sliding plate 24, the sliding plate 24 is in sliding connection with the base through a guide pin 22, the top part is provided with a through hole, the guide shaft 15 is penetrated on a guide shaft 15 connected to the top part of the base 17 through the through hole, the guide shaft 15 is positioned below the tachometer wheel 14, the guide shaft 15 is sleeved with a locking rope spring 16 with two ends respectively abutted against the sliding plate 24 and the base 17, the bottom of the sliding plate 24 is connected with a bracket 8 with one end of the panel, the steel wire rope channel penetrates through the bracket 8, the bracket 8 is provided with a rectangular hole, the square pin 20 and the buffer block 21 is arranged inside the bracket 8, the square pin 20 is connected with the square pin 20, and the square pin 20 is arranged on the square pin 20 and is connected with the square pin part and the square pin 20.
The working principle is that during normal operation, the heavy centrifugal trigger type safety lock is in an open state, a small circular arc at the bottom of the top block 28 is downwards attached to the upper surface of the sliding plate 24, so that the sliding plate 24 is positioned at the lowest part of the moving range, and the opposite surfaces of the two wedge blocks 23 are furthest apart and smaller than the diameter of a steel wire rope, so that the steel wire rope can only penetrate through an arc-shaped groove in the steel wire rope. After the steel wire rope enters the safety lock, friction force is generated under the action of the rope pressing spring 26 through the speed measuring wheel 14 and the rope pressing wheel 27, the rotating bracket 9 and the throwing blocks 2 are driven to rotate, and the two throwing blocks 2 are connected through the speed regulating spring 3. When the sliding speed of the safety lock reaches the set speed, centrifugal force enables the throwing block 2 to overcome the speed regulating spring 3 to open, the tooth edges on the throwing block 2 touch the deflector rod 6 to enable the deflector rod to rotate, the contact line of the jacking block 28 and the sliding plate 23 deviates from the vertical direction, and the jacking block 28 cannot provide enough downward pressure due to upward acting force of the rope locking spring 16 on the jacking block 28, so that the sliding plate 23 is moved upwards by pressure generated by the rope locking spring 16, simultaneously drives the wedge blocks 23 to move upwards along the inclined planes of the wedge grooves of the base 17, the opposite surfaces of the two wedge blocks 23 are close to each other until the steel wire ropes are tightly locked in the arc grooves of the wedge blocks 23, in the process, the sliding plate 24 moves upwards to drive the bracket 8 to move upwards, and the buffer block 21 in the rectangular hole of the bracket 8 is extruded to generate a buffer effect, so that impact force is effectively reduced. When unlocking is needed, the unlocking handle 19 is rotated, the top block 28 pushes the sliding plate 24 downwards to overcome the pressure of the rope locking spring 16 and move downwards until the small arc center of the head of the top block 28 and the center of the unlocking shaft 30 are in the vertical direction, in the process, the wedge 23 descends along the wedge groove inclined plane of the base 17, the opposite surface of the wedge 23 is gradually far away, the steel wire rope is loosened, meanwhile, the head of the deflector rod 6 is close to the throwing block 2 until the deflector rod 7 contacts the positioning screw 7 and cannot rotate continuously, and the deflector rod 7 is in a state to be triggered.
While the invention has been described with reference to the preferred embodiments, it is not intended to limit the invention thereto, but it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and therefore the scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The heavy centrifugal triggering type safety lock is characterized by comprising a panel, wherein a rope inlet, a rope outlet and a steel wire rope channel communicated with the rope inlet and the rope outlet are formed in the panel, a rope pressing mechanism positioned in the panel is arranged on one side of the steel wire rope channel, a centrifugal triggering mechanism corresponding to the rope pressing mechanism is arranged on the other side of the steel wire rope channel, the centrifugal triggering mechanism is rotationally connected to the panel, an unlocking and locking mechanism is further arranged on the panel, the centrifugal triggering mechanism is in transmission connection with the unlocking and locking mechanism in a triggering state, a guide shaft and a base are arranged in the panel and positioned below the rope pressing mechanism, a wedge-shaped groove surrounding the steel wire rope channel is formed in the base, the guide shaft is parallel to the steel wire rope channel and fixedly arranged at the top of the base, a rope locking mechanism which is in sliding connection with the base is arranged on the guide shaft in a penetrating manner, and the locking mechanism is used for clamping or releasing a steel wire rope and is in contact with the unlocking and locking mechanism; the rope locking mechanism comprises a sliding plate, wherein the sliding plate is sleeved on a guide shaft in a sliding manner and is in sliding connection with a base, wedge blocks symmetrically arranged on two sides of a steel wire rope channel are arranged on the sliding plate, the far surfaces of the two wedge blocks are respectively attached to inclined surfaces of corresponding wedge grooves and are in sliding connection with the wedge grooves, arc grooves are respectively formed in the opposite surfaces of the wedge blocks, a bracket arranged below the base is connected to the bottom of the sliding plate, a plurality of rectangular holes are formed in the bracket, square pins and buffer blocks adhered to the square pins are sequentially arranged in the rectangular holes, when the sliding speed of the safety lock reaches a set speed, the centrifugal triggering mechanism triggers the unlocking mechanism to rotate by centrifugal force, so that the sliding plate can move upwards, the wedge blocks move upwards along the inclined planes of the wedge grooves of the base, and the opposite sides of the two wedge blocks are close to each other until the steel wire rope is locked in the arc grooves of the wedge blocks.
2. The heavy duty centrifugal trigger safety lock according to claim 1, wherein the top end of the bracket extends beyond the panel, the square pin is remote from the base and is movably connected to the panel, and the bottom end of the bracket extends beyond the panel.
3. The heavy centrifugal triggering type safety lock according to claim 2, comprising an unlocking shaft, a top block, a sliding sleeve, a deflector rod and a rope locking spring, wherein the rope locking spring is sleeved on the guide shaft, two ends of the rope locking spring are respectively abutted against the sliding plate and the base, the unlocking shaft vertically stretches into the panel through the sliding sleeve, the deflector rod is arranged at one end of the unlocking shaft, which is positioned outside the panel, and the deflector rod is sleeved at the other end of the unlocking shaft, and the deflector rod is abutted against the sliding plate.
4. A heavy duty centrifugal trigger type safety lock according to claim 3, wherein the panel is provided with a limit screw on the surface of the deflector rod, a matched housing is covered above the panel, a window and an unlocking handle positioned on one side of the window are arranged on the housing, and the unlocking handle is connected with the unlocking shaft.
5. A heavy duty centrifugal trigger safety lock according to claim 3, wherein the top block is a large top and small bottom cam.
6. The heavy centrifugal trigger type safety lock according to claim 1, wherein the centrifugal trigger mechanism comprises a rotary support, the rotary support rotates and stretches into the panel, a speed measuring wheel is sleeved on one end of the rotary support, which is positioned in the panel, a symmetrically arranged throwing block is hinged on the other end of the rotary support, and an adjusting spring is connected between free ends of the throwing blocks.
7. The heavy duty centrifugal trigger type safety lock according to claim 6, wherein the outer peripheral surface of the tachometer wheel is provided with a V-shaped groove.
8. The heavy centrifugal trigger type safety lock according to claim 1, wherein the rope pressing mechanism comprises a clamping plate, one end of the clamping plate is hinged to the panel, the other end of the clamping plate is rotatably provided with a rope pressing wheel, and a compression spring is abutted between the middle part of the clamping plate and the side wall of the panel.
9. The heavy duty centrifugal trigger type safety lock according to claim 8, wherein an arc-shaped groove is formed in the outer circumferential surface of the pressing sheave.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010145609.3A CN111173858B (en) | 2020-03-05 | 2020-03-05 | A heavy-duty centrifugal trigger safety lock |
| PCT/CN2021/074985 WO2021175070A1 (en) | 2020-03-05 | 2021-02-03 | Heavy-duty centrifuge-triggered safety lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010145609.3A CN111173858B (en) | 2020-03-05 | 2020-03-05 | A heavy-duty centrifugal trigger safety lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111173858A CN111173858A (en) | 2020-05-19 |
| CN111173858B true CN111173858B (en) | 2024-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010145609.3A Active CN111173858B (en) | 2020-03-05 | 2020-03-05 | A heavy-duty centrifugal trigger safety lock |
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| Country | Link |
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| CN (1) | CN111173858B (en) |
| WO (1) | WO2021175070A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173858B (en) * | 2020-03-05 | 2024-12-20 | 无锡瑞吉德机械有限公司 | A heavy-duty centrifugal trigger safety lock |
| CN114394507B (en) * | 2022-01-19 | 2024-06-25 | 深圳市嘉伯科技有限公司 | Magnetic suspension elevator |
| CN114700500A (en) * | 2022-04-13 | 2022-07-05 | 杭州喜马拉雅信息科技有限公司 | Metal 3D printing equipment with powder jar jacking function |
| CN115199024B (en) * | 2022-06-01 | 2024-07-26 | 湖南恒建建筑工程有限公司 | Anti-shaking hanging basket for track type building construction |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212055588U (en) * | 2020-03-05 | 2020-12-01 | 无锡瑞吉德机械有限公司 | Heavy centrifugal triggering type safety lock |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11335100A (en) * | 1998-05-26 | 1999-12-07 | Eagle Clamp Kk | Drop down preventing device |
| US6382358B1 (en) * | 2000-10-31 | 2002-05-07 | Jeffrey Scott Kritzer | Safety lock device for automobile lifts |
| CN2753700Y (en) * | 2004-11-19 | 2006-01-25 | 刘德民 | Steel rope overspeed protection safety device |
| DE202011001304U1 (en) * | 2011-01-09 | 2011-03-24 | Blasek, Frank | Rope safety gear |
| CN204802811U (en) * | 2015-01-29 | 2015-11-25 | 无锡瑞吉德机械有限公司 | Centrifugation speed limit formula safety lock |
| CN108622828A (en) * | 2017-03-15 | 2018-10-09 | 温建 | Hanging basket Anti-inclining double protecting device |
| CN206940373U (en) * | 2017-07-17 | 2018-01-30 | 无锡瑞吉德机械有限公司 | A kind of double acting safety lock with Anti-inclining with centrifugation speed limiting function |
| CN110395641B (en) * | 2018-04-25 | 2021-12-14 | 奥的斯电梯公司 | Speed limiter assembly and elevator system |
| CN111173858B (en) * | 2020-03-05 | 2024-12-20 | 无锡瑞吉德机械有限公司 | A heavy-duty centrifugal trigger safety lock |
-
2020
- 2020-03-05 CN CN202010145609.3A patent/CN111173858B/en active Active
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2021
- 2021-02-03 WO PCT/CN2021/074985 patent/WO2021175070A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212055588U (en) * | 2020-03-05 | 2020-12-01 | 无锡瑞吉德机械有限公司 | Heavy centrifugal triggering type safety lock |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021175070A1 (en) | 2021-09-10 |
| CN111173858A (en) | 2020-05-19 |
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