CN104150312B - Accidental movement of elevator cage safeguard protection device - Google Patents
Accidental movement of elevator cage safeguard protection device Download PDFInfo
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- CN104150312B CN104150312B CN201410352398.5A CN201410352398A CN104150312B CN 104150312 B CN104150312 B CN 104150312B CN 201410352398 A CN201410352398 A CN 201410352398A CN 104150312 B CN104150312 B CN 104150312B
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Abstract
The present invention relates to a kind of accidental movement of elevator cage safeguard protection device; comprise transition bracket, a frame component; support component slippage is connected on transition bracket; prop up frame component and it is provided with transmission shaft; transmission shaft front end is provided with cam; rear end is provided with intermeshing transmitting gear; drive-motor is connected with the driving gear engaged with transmitting gear; the self-locking roller that can move up and down and cam lay respectively at the left and right sides of guide rail; drive cam rotation by each geartransmission, finally coordinate by cam and self-locking roller and guide rail is clamped. Its objective is that a kind of volume is little, action is rapid, self-locking property good in order to provide, bi-directional braking can be realized, safe and reliable and be convenient to processing and the accidental movement of elevator cage safeguard protection device that use cost is low.
Description
Technical field
The present invention relates in elevator detect, fault correct or the applied technical field of security device, particularly relate to a kind of sedan-chair railway carriage or compartment, cage or skip bucket and fixed guide element or volume raise effect between passage or elevator hoistways internal surface, the drift stop that utilizes friction brake force or pawl device.
Background technology
Elevator after flat layer under door opening state, personnel normally come in and go out or load and unload in the process of goods; owing to certain electrical element of elevator or certain component of traction breaking system break down; there is the unexpected situation moving away stop in sedan-chair railway carriage or compartment; make elevator in use there is serious accident potential, therefore it is badly in need of increasing corresponding safeguard protection device and prevents sedan-chair railway carriage or compartment accidental movement.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of volume is little, action is rapid, self-locking property good, can realize bi-directional braking, safe and reliable and be convenient to processing and the accidental movement of elevator cage safeguard protection device that use cost is low.
Accidental movement of elevator cage safeguard protection device of the present invention, comprises transition bracket, brake component, drive element, and guide rail is positioned at the middle part of described transition bracket, and described transition bracket comprises guide plate, lower guide plate,
Described brake component comprises a frame component, the two ends up and down of described frame component are slidably connected at described upper guide plate, on lower guide plate, described frame component comprises header board backward successively by front, middle plate, rear plate, described middle plate is offered two axis holes distributed up and down, the first transmission shaft that anterior-posterior horizontal is arranged, second driving shaft through described axis hole and with described axis hole running fit, described first transmission shaft, the position of second driving shaft is symmetrical up and down, described first transmission shaft, the front end of second driving shaft by flat key symmetrical be equiped with the identical overhead cam of structure, lower cam, described overhead cam, lower cam is all positioned at the right side of described guide rail, described header board is positioned at described overhead cam, the front of lower cam, described first transmission shaft, the rear end of second driving shaft respectively by flat key symmetrical be equiped with intermeshing first transmitting gear, 2nd transmitting gear,
Described brake component also comprises and is positioned at described overhead cam, self-locking roller on the left of lower cam, the arranged direction of described self-locking roller and described overhead cam, lower cam is identical, the front of described self-locking roller is provided with left cover, described left cover is fixedly connected with described frame component, described self-locking roller is positioned at the left side of described guide rail, described left cover is offered and extends downwards and the deep-slotted chip breaker of lateral bend to the right, after roller shaft passes perpendicularly through described self-locking roller, front end embeds in described deep-slotted chip breaker, rear end is close on a described frame component, described frame component upper, lower two ends are slidably installed with respectively erects to arranging and overlap the first guiding pin being filled with compression spring, 2nd guiding pin, described first guiding pin, described self-locking roller clip is held in centre by the 2nd guiding pin,
The left side of described frame component is installed with braking guide plate, and the face, right side of described braking guide plate is provided with the cambered surface of depression, and the radian of described cambered surface is identical with the radian of described deep-slotted chip breaker,
The electric-controlled parts that described drive element comprises drive-motor and is connected with described drive-motor, described drive-motor is connected with driving gear by linking bond or jackscrew, described driving gear is positioned at the lower left of described first transmitting gear and engages with described first transmitting gear, and after the drive shaft of described drive-motor passes described driving gear, front end is stretched in the hole on described middle plate.
Accidental movement of elevator cage safeguard protection device difference from prior art of the present invention is that accidental movement of elevator cage safeguard protection device of the present invention is by the cooperation of brake component and drive element; make the self-locking roller in brake component and cam clamping guide-rail simultaneously, prevent sedan-chair railway carriage or compartment accidental movement. Accidental movement of elevator cage safeguard protection device self-locking property of the present invention is good; bi-directional braking, in time prevention sedan-chair railway carriage or compartment accidental movement can be realized rapidly; thus the safety performance of elevator is substantially increased; and this device volume little, easy for installation, be convenient to processing; both improve working efficiency, again reduce use cost.
Accidental movement of elevator cage safeguard protection device of the present invention, the left side of wherein said braking guide plate is provided with backing plate, and described backing plate is fixedly mounted on the left side of a described frame component. By increasing and decreasing the thickness of backing plate, it is possible to make cam and self-locking roller symmetrical for guideway centreline to adjust convenient, further increase the precision of this device.
Accidental movement of elevator cage safeguard protection device of the present invention; the rear side of wherein said first transmitting gear, the 2nd transmitting gear is fixedly installed the first adjustment block, the 2nd adjustment block respectively; described drive element also comprise arrange up and down the first stroke transfer switch, the 2nd stroke transfer switch; it is connected by the first driving lever between described first adjustment block with described first stroke transfer switch, it is connected by the 2nd driving lever between described 2nd adjustment block with described 2nd stroke transfer switch. By arranging transfer switch and be mated the adjustment block of effect, after the failture evacuation of sedan-chair railway carriage or compartment accidental movement, cam can be adjusted in time, quickly and easily and turns to, decontrol guide rail, elevator is normally run, thus for the use of elevator provides a great convenience.
Accidental movement of elevator cage safeguard protection device of the present invention; wherein said transmission shaft is provided with the shaft shoulder; the described shaft shoulder, between described cam and described middle plate, is equiped with interval cover between described transmitting gear and described middle plate, the rear end of described transmission shaft is equiped with back-up ring. Arrange the shaft shoulder to be possible to prevent cam and move forward and backward, gear is clipped in the middle by interval cover and back-up ring, it is possible to effectively avoid gear to move forward and backward, and these arrange the precision that all improve this device, ensure that sedan-chair railway carriage or compartment by timely stop, can further increase the safety performance of elevator.
Accidental movement of elevator cage safeguard protection device of the present invention, is equiped with self-oiling bearing in wherein said axis hole. Self-oiling bearing wear resisting property is good, frictional coefficient is little, ensure that the operating accuracy of transmission shaft, and transmission shaft can be made to reduce vibration, improves the transmission effect of axle.
Accidental movement of elevator cage safeguard protection device of the present invention, wherein said electric-controlled parts is also connected with the limit switch arranged up and down, and described limit switch is positioned on the mobile route of described self-locking roller. By limit switch-linear hybrid on the mobile route of self-locking roller, self-locking roller can touch switch while locking guide rail, makes elevator safety loop power-off, avoids traction machine and other drive unit action, thus further increase the security of elevator.
Accidental movement of elevator cage safeguard protection device of the present invention; the left and right sides plate of wherein said transition bracket is provided with spacing screw that is symmetrical in opposite directions and that arrange in the horizontal direction; being arranged with spring on described spacing screw, the telescopic end of described spring contacts with the left side plate of described frame component. Spacing screw and spring coordinate both can under the not extruded state of guide rail the left and right displacement of limit bracket assembly, guide rail is made to be positioned on the medullary ray of a frame component, can terminate in the action of this device clamp rail again, after guide rail contacts with cam disengages, the screen resilience by spring makes a frame component reset.
Accidental movement of elevator cage safeguard protection device of the present invention, the end of wherein said first transmission shaft, second driving shaft is provided with zerk, and described zerk is positioned at described back-up ring rear. Associated components oiling can be given by zerk, avoid parts to get rusty, not only reduce the friction between parts, it is to increase the operating accuracy of parts, and make parts be not easy abrasion, extend work-ing life, provide cost savings.
Below in conjunction with accompanying drawing, the accidental movement of elevator cage safeguard protection device of the present invention is described further.
Accompanying drawing explanation
The master that Fig. 1 is accidental movement of elevator cage safeguard protection device of the present invention looks part sectioned view;
Fig. 2 is the left view part sectioned view of accidental movement of elevator cage safeguard protection device of the present invention;
Fig. 3 be accidental movement of elevator cage safeguard protection device of the present invention overlook part sectioned view;
Fig. 4 is the structural representation of drive element in accidental movement of elevator cage safeguard protection device of the present invention;
Fig. 5 be accidental movement of elevator cage safeguard protection device of the present invention install and use state graph.
Embodiment
As shown in Figure 1 and Figure 2; accidental movement of elevator cage safeguard protection device of the present invention comprises transition bracket 1, brake component 2, drive element 3; guide rail 8 is positioned at the middle part of transition bracket 1; transition bracket 1 comprises guide plate 101, lower guide plate 102; all having offered chute (not illustrating in figure) on upper guide plate 101, lower guide plate 102, chute extends in left-right direction.
Brake component 2 comprises a frame component 204, the two ends up and down of frame component 204 have been threaded guiding screw 2041 respectively, the screw cap (not illustrating in figure) of guiding screw 2041 is positioned at above-mentioned chute, above-mentioned screw cap slides along about chute, driving a frame component 204 to move left and right on transition bracket 1, a frame component 204 is also play a part upper and lower spacing by the screw cap (not illustrating in figure) of guiding screw 2041 simultaneously. Prop up frame component 204 and comprise header board 200, middle plate 2001, rear plate 2002 backward successively by front, middle plate 2001 is offered two axis holes distributed up and down, anterior-posterior horizontal arrange the first transmission shaft 212, second driving shaft 214 rear end through axis hole and with axis hole running fit, can rotate in axis hole. The position of the first transmission shaft 212, second driving shaft 214 is symmetrical up and down. Preferably, self-oiling bearing 213 it is equiped with in axis hole.
The front end of the first transmission shaft 212, second driving shaft 214 respectively by the first flat key 2081, the 2nd flat key 2071 symmetrical be equiped with the identical overhead cam of structure 208, lower cam 207, overhead cam 208, lower cam 207 are all positioned at the right side of guide rail 8, first transmission shaft 212, second driving shaft 214 are also respectively equipped with first shaft shoulder 2121, the 2nd shaft shoulder 2141, between overhead cam 208, lower cam 207 and middle plate 2001 spacing by first shaft shoulder 2121, the 2nd shaft shoulder 2141, header board 200 is positioned at the front of overhead cam 208, lower cam 207.
The rear end of the first transmission shaft 212, second driving shaft 214 respectively by the 3rd flat key 211, the 4th flat key 2111 symmetrical be equiped with intermeshing first transmitting gear 217, the 2nd transmitting gear 218, be equiped with respectively between first transmitting gear 217, the 2nd transmitting gear 218 and middle plate 2,001 first interval cover the 215, the 2nd interval cover the 216, three flat key 211, the 4th flat key 2111 rear end be equiped with the first back-up ring 2171, second gear circle 2181 respectively. The rear that the end of the first transmission shaft 212, second driving shaft 214 is equiped with the first zerk 2172, the 2nd zerk 2182, first zerk 2172, the 2nd zerk 2182 lay respectively at the first back-up ring 2171, second gear circle 2181.
Again shown in composition graphs 4, the electric-controlled parts 4 that drive element 3 comprises drive-motor 30 and is connected with drive-motor 30, receives electric-controlled parts 4 when sending elevator chance failure signal, and drive-motor 30 is energized and runs. Drive-motor 30 is connected with driving gear 33 by linking bond (not illustrating in figure) or jackscrew 35, again shown in composition graphs 4, driving gear 33 is positioned at the lower left of the first transmitting gear 217 and engages with the first transmitting gear 217, the drive shaft 301 of drive-motor 30 is after driving gear 33, and front end is stretched in the hole 2003 on middle plate 2001. Drive-motor 30 is energized and runs, and drive shaft 301 rotates, and drives driving gear 33 to rotate. The rear side of the first transmitting gear 217, the 2nd transmitting gear 218 is fixedly installed the first adjustment block 2173, the 2nd adjustment block 2183 respectively, drive element 3 also comprise arrange up and down the first stroke transfer switch 36, the 2nd stroke transfer switch 37, it is connected by the first driving lever 361 between first adjustment block 2173 with the first stroke transfer switch 36, it is connected by the 2nd driving lever 371 between the 2nd adjustment block 2183 with the 2nd stroke transfer switch 37. After failture evacuation, elevator need to resume operation, now, opening stroke transfer switch, adjustment block stirred by the driving lever on transfer switch, gear is rotated backward, and then band moving cam rotates backward, cam and guide rail 8 disengage, and final following self-locking roller 203 also departs from guide rail 8, guide rail 8 is released, and elevator normally runs.
Again as shown in Figure 1, Figure 3, the guide rail 8 in Fig. 1 have employed omissive representation, left cover 205 have employed perspective. Brake component 2 also comprises the self-locking roller 203 being positioned on the left of overhead cam 208, lower cam 207, the arranged direction of self-locking roller 203 and overhead cam 208, lower cam 207 are identical, the front of self-locking roller 203 is provided with left cover 205, left cover 205 screw 206 and a frame component 204 are fixed together, and are limited in by self-locking roller 203 in the cavity of the frame component 204 on the left of guide rail 8. Offering on left cover 205 and extend downwards and the deep-slotted chip breaker 2051 of lateral bend to the right, after roller shaft 2031 passes perpendicularly through self-locking roller 203, front end embeds in deep-slotted chip breaker 2051, and rear end is close on a frame component 204. The upper/lower terminal propping up frame component 204 is provided with up and down to being much of pin-and-hole 2042, lower pin-and-hole 2043 near the position of self-locking roller 203, in upper pin-and-hole 2042, lower pin-and-hole 2043, installing cover is filled with the first compression spring 2011, the first guiding pin 201 of the 2nd compression spring 2021, the 2nd guiding pin 202 respectively, first guiding pin 201, the 2nd guiding pin 202 erect to cloth postpone one on the other, self-locking roller 203 is clamped in centre, the bottom of the first guiding pin 201 and the top contact of self-locking roller 203, the top of the 2nd guiding pin 202 and the base contact of self-locking roller 203. Move up and down under the effect of the frictional force of self-locking roller 23 between itself and guide rail 8, thus promote guiding pin to move up and down. The left side propping up frame component 204 is installed with backing plate 210, the right side of backing plate 210 is installed with braking guide plate 209, the face, right side of braking guide plate 209 is provided with the cambered surface 2091 of depression, the radian of cambered surface 2091 is identical with the radian of deep-slotted chip breaker 2051, ensure that self-locking roller 203, while moving down, displacement to the left can not occur, but gradually to moving right. In addition, the arranged on left and right sides plate of transition bracket 1 is provided with the spacing screw 13 of the spacing screw of horizontally disposed first the 12, the 2nd, the position of the first spacing screw 12, the 2nd spacing screw 13 is symmetrical in opposite directions, first spacing screw 12, the 2nd spacing screw 13 are arranged with the first spring 121, the 2nd spring 131 respectively, the right-hand member of the first spring 121, the left end of the 2nd spring 131 contact with the left side plate propping up frame component 204 respectively, spacing screw and spring match, by support clamp in centre, ensure that its position is placed in the middle.
Again shown in composition graphs 4; also being connected with the limit switch 34 arranged up and down on electric-controlled parts 4, limit switch 34 is positioned on the mobile route of self-locking roller 203, and self-locking roller 203 moves up or down certain distance; can touching limit switch 34, elevator safety loop power-off is protected.
As shown in Figure 5; for the scheme of installation of accidental movement of elevator cage safeguard protection device of the present invention; the sedan-chair frame 6 supporting sedan-chair railway carriage or compartment 5 it is provided with outside sedan-chair railway carriage or compartment 5; sedan-chair frame 6 comprises the top roof beam 61 of lateral arrangement and the left and right sides is erected to the vertical beam 62 arranged; by leading, boots 7 are fixed on guide rail 8 in sedan-chair railway carriage or compartment 5; the installation of above-mentioned each parts is arranged can adopt routine techniques means, does not repeat herein. During use; install the safeguard protection device of accidental movement of elevator cage safeguard protection device of the present invention in the left and right sides of sedan-chair frame 6 symmetrically; the structure of two protectors is completely identical; only installation direction needs to do accommodation, and two protectors are all fixedly mounted in roof beam 61 by transition bracket 1.
The principle of work of the safeguard protection device of accidental movement of elevator cage safeguard protection device of the present invention is: when safety device receives the accidental movement of elevator cage signal that electric-controlled parts 4 sends, drive-motor 30 in safety device is energized and rotates, and drive driving gear 33 synchronous axial system by linking bond or jackscrew 35, driven the first transmitting gear 217 engaged with it to rotate by driving gear 33, first transmitting gear 217 drives the 2nd transmitting gear 218 engaged with it to rotate again, again respectively by the first transmitting gear 217, 2nd transmitting gear 218 transmits motion to overhead cam 208 by respective transmission shaft, lower cam 207, make two cam move toward one another, namely overhead cam 208 rotates counterclockwise and makes its cam height point gradually near guide rail 8, meanwhile, lower cam 207 also makes its cam height point gradually near guide rail 8 along rotating clockwise, after two cams contact guide rail 8 simultaneously, it is rotated further and just can produce horizontal thrust, make brake component 2 along with upper at transition bracket 1 of frame component 204, in lower guide plate, level is slided to the right, thus the periphery making to be positioned at the self-locking roller 203 on the left of guide rail 8 also gradually near guide rail 8 until contact with guide rail 8, make guide rail 8 by micro-clamping, sedan-chair railway carriage or compartment 5 continues to move down, under the effect of frictional force, two cams continue to rotate towards clamping direction, simultaneously, self-locking roller 203 is also along cambered surface 2091 slide downward on braking guide plate 209, until guide rail 8 is clamped by two cams and self-locking roller 203 simultaneously, sedan-chair railway carriage or compartment 5 is stopped mobile. when after accidental movement of elevator cage Failure elimination, matched by stroke transfer switch and adjustment block, change cam and turn to, cam is rotated towards the direction unclamping guide rail 8, and then a frame component 204 is moved to the left, self-locking roller 203 is also moved to the left thereupon and disengages with guide rail 8, and now, frictional force disappears, under the effect of compression spring, self-locking roller 203 resets, and guide rail 8 is fully released, and elevator recovers normal and runs.
Above-described embodiment is only the preferred embodiment of the present invention be described; not the scope of the present invention is limited; under the prerequisite not departing from inventive design spirit; the various distortion that the technical scheme of the present invention is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that claims of the present invention is determined.
Claims (8)
1. an accidental movement of elevator cage safeguard protection device, comprises transition bracket (1), brake component (2), drive element (3),
It is characterized in that: guide rail (8) is positioned at the middle part of described transition bracket (1), described transition bracket (1) comprises guide plate (101), lower guide plate (102),
Described brake component (2) comprises a frame component (204), the two ends up and down of described frame component (204) are slidably connected at described upper guide plate (101), on lower guide plate (102), described frame component (204) comprises header board (200) backward successively by front, middle plate (2001), rear plate (2002), described middle plate (2001) is offered two axis holes distributed up and down, the first transmission shaft (212) that anterior-posterior horizontal is arranged, second driving shaft (214) through described axis hole and with described axis hole running fit, described first transmission shaft (212), the position of second driving shaft (214) is symmetrical up and down, described first transmission shaft (212), the front end of second driving shaft (214) by flat key symmetrical be equiped with the identical overhead cam of structure (208), lower cam (207), described overhead cam (208), lower cam (207) is all positioned at the right side of described guide rail (8), described header board (200) is positioned at described overhead cam (208), the front of lower cam (207), described first transmission shaft (212), the rear end of second driving shaft (214) respectively by flat key symmetrical be equiped with intermeshing first transmitting gear (217), 2nd transmitting gear (218),
Described brake component (2) also comprises and is positioned at described overhead cam (208), the self-locking roller (203) in lower cam (207) left side, the arranged direction of described self-locking roller (203) and described overhead cam (208), lower cam (207) is identical, the front of described self-locking roller (203) is provided with left cover (205), described left cover (205) is fixedly connected with described frame component (204), described self-locking roller (203) is positioned at the left side of described guide rail (8), described left cover (205) is offered and extends downwards and the deep-slotted chip breaker (2051) of lateral bend to the right, roller shaft (2031) passes perpendicularly through described self-locking roller (203) and embeds in described deep-slotted chip breaker (2051) in front end afterwards, rear end is close on a described frame component (204), described frame component (204) upper, lower two ends are slidably installed with respectively erects to arranging and overlap the first guiding pin (201) being filled with compression spring, 2nd guiding pin (202), described first guiding pin (201), described self-locking roller (203) is clamped in centre by the 2nd guiding pin (202),
The left side of described frame component (204) is installed with braking guide plate (209), the face, right side of described braking guide plate (209) is provided with the cambered surface (2091) of depression, the radian of described cambered surface (2091) is identical with the radian of described deep-slotted chip breaker (2051)
The electric-controlled parts (4) that described drive element (3) comprises drive-motor (30) and is connected with described drive-motor (30), described drive-motor (30) is connected with driving gear (33) by linking bond or jackscrew (35), described driving gear (33) is positioned at the lower left of described first transmitting gear (217) and engages with described first transmitting gear (217), the drive shaft (301) of described drive-motor (30) stretches in the hole (2003) on described middle plate (2001) front end afterwards through described driving gear (33).
2. accidental movement of elevator cage safeguard protection device according to claim 1; it is characterized in that: the left side of described braking guide plate (209) is provided with backing plate (210), described backing plate (210) is fixedly mounted on the left side of a described frame component (204).
3. accidental movement of elevator cage safeguard protection device according to claim 1 and 2, it is characterized in that: described first transmitting gear (217), the rear side of the 2nd transmitting gear (218) is fixedly installed the first adjustment block (2173) respectively, 2nd adjustment block (2183), described drive element (3) also comprises the first stroke transfer switch (36) arranged up and down, 2nd stroke transfer switch (37), it is connected by the first driving lever (361) between described first adjustment block (2173) with described first stroke transfer switch (36), it is connected by the 2nd driving lever (371) between described 2nd adjustment block (2183) with described 2nd stroke transfer switch (37).
4. accidental movement of elevator cage safeguard protection device according to claim 3; it is characterized in that: described transmission shaft is provided with the shaft shoulder; the described shaft shoulder is arranged between described cam and described plate (2001); being equiped with interval cover between described transmitting gear and described middle plate (2001), the rear end of described transmission shaft is equiped with back-up ring.
5. accidental movement of elevator cage safeguard protection device according to claim 4, it is characterised in that: it is equiped with self-oiling bearing (213) in described axis hole.
6. accidental movement of elevator cage safeguard protection device according to claim 5; it is characterized in that: be also connected with the limit switch (34) arranged up and down on described electric-controlled parts (4), described limit switch (34) is positioned on the mobile route of described self-locking roller (203).
7. accidental movement of elevator cage safeguard protection device according to claim 6; it is characterized in that: the left and right sides plate of described transition bracket (1) is provided with spacing screw that is symmetrical in opposite directions and that arrange in the horizontal direction; being arranged with spring on described spacing screw, the telescopic end of described spring contacts with the left side plate of described frame component (204).
8. accidental movement of elevator cage safeguard protection device according to claim 7; it is characterized in that: the end of described first transmission shaft (212), second driving shaft (214) is provided with zerk, and described zerk is positioned at described back-up ring rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410352398.5A CN104150312B (en) | 2014-07-23 | 2014-07-23 | Accidental movement of elevator cage safeguard protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410352398.5A CN104150312B (en) | 2014-07-23 | 2014-07-23 | Accidental movement of elevator cage safeguard protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104150312A CN104150312A (en) | 2014-11-19 |
| CN104150312B true CN104150312B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410352398.5A Active CN104150312B (en) | 2014-07-23 | 2014-07-23 | Accidental movement of elevator cage safeguard protection device |
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| Country | Link |
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| CN (1) | CN104150312B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860113A (en) * | 2021-08-30 | 2021-12-31 | 伟龙意程智能科技(江苏)有限公司 | Eccentric wheel type safety tongs structure for elevator |
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| GB191103741A (en) * | 1911-02-14 | 1911-12-07 | David Bufton | Improvements in Safety Appliances for use with Pit Cages, Hoists, Lifts and the like. |
| GB1368974A (en) * | 1971-11-26 | 1974-10-02 | Ace Machinery Ltd | Brakes for materials hoists |
| CN1880208A (en) * | 2005-06-17 | 2006-12-20 | 因温特奥股份公司 | Safety brake device |
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| CN101605713A (en) * | 2007-02-15 | 2009-12-16 | 三菱电机株式会社 | The safety device of elevator |
| CN201400495Y (en) * | 2009-05-07 | 2010-02-10 | 河北东方富达机械有限公司 | Rope gripper for elevator |
| CN102303802A (en) * | 2011-08-04 | 2012-01-04 | 中国兵器工业第二○二研究所 | Broken rope protective device of upright lift gate |
| CN204079141U (en) * | 2014-07-23 | 2015-01-07 | 河北东方富达机械有限公司 | Accidental movement of elevator cage safety guard |
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2014
- 2014-07-23 CN CN201410352398.5A patent/CN104150312B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191103741A (en) * | 1911-02-14 | 1911-12-07 | David Bufton | Improvements in Safety Appliances for use with Pit Cages, Hoists, Lifts and the like. |
| GB1368974A (en) * | 1971-11-26 | 1974-10-02 | Ace Machinery Ltd | Brakes for materials hoists |
| CN1880208A (en) * | 2005-06-17 | 2006-12-20 | 因温特奥股份公司 | Safety brake device |
| CN101605713A (en) * | 2007-02-15 | 2009-12-16 | 三菱电机株式会社 | The safety device of elevator |
| CN201400495Y (en) * | 2009-05-07 | 2010-02-10 | 河北东方富达机械有限公司 | Rope gripper for elevator |
| CN101554968A (en) * | 2009-05-14 | 2009-10-14 | 郑州市鑫宇机械制造有限公司 | Traction-type construction lifting machine and gradual anti-falling safety device thereof |
| CN102303802A (en) * | 2011-08-04 | 2012-01-04 | 中国兵器工业第二○二研究所 | Broken rope protective device of upright lift gate |
| CN204079141U (en) * | 2014-07-23 | 2015-01-07 | 河北东方富达机械有限公司 | Accidental movement of elevator cage safety guard |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860113A (en) * | 2021-08-30 | 2021-12-31 | 伟龙意程智能科技(江苏)有限公司 | Eccentric wheel type safety tongs structure for elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104150312A (en) | 2014-11-19 |
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Effective date of registration: 20210914 Address after: 1118 laixiu Road, Lili Town, Wujiang District, Suzhou City, Jiangsu Province Patentee after: Suzhou Dongfang Fuli Elevator Parts Co.,Ltd. Address before: 065000 Langfang city of Hebei province Guangyang District Guangming East Road No. 112 Patentee before: HEBEI DONGFANG FUDA MACHINERY Co.,Ltd. |