CN113044689B - Unhooking device for elevator safety component test - Google Patents
Unhooking device for elevator safety component test Download PDFInfo
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- CN113044689B CN113044689B CN202110254799.7A CN202110254799A CN113044689B CN 113044689 B CN113044689 B CN 113044689B CN 202110254799 A CN202110254799 A CN 202110254799A CN 113044689 B CN113044689 B CN 113044689B
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000010009 beating Methods 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
- B66B5/0093—Testing of safety devices
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention provides a unhooking device for elevator safety component test, which comprises a hanging hole plate, two side baffles, a weight hanging plate, a lifting hook, a unhooking stop lever, a push rod pushing unit and a counterweight unit. The elevator safety component test device is arranged between the tractor hook and the elevator car lifting hook, the unhooking stop lever and the lifting hook form a lower lifting hole capable of controlling opening and closing, and the lower lifting hole of the unhooking device is remotely controlled to be opened, so that the tractor hook and the elevator car top lifting hook are quickly separated, the elevator safety component test device is optimized in the elevator safety component test process, the test accuracy and safety are improved, and the elevator safety component test device has important significance in improving the test data precision.
Description
Technical Field
The invention belongs to the field of equipment for elevator safety test, and particularly relates to a unhooking device for elevator safety component test.
Background
With the rapid development of economy and the continuous promotion of town, the demand of elevators as an important transportation means is geometrically multiplied, the safety problem of the elevators is increasingly highlighted, the elevator is particularly important as a safety component for guaranteeing the safety of the elevators, and the performance of the safety component of the elevators is the key, so that the elevator needs to be judged by a type test.
The test of elevator safety component needs professional test tower to go on, and the top of test tower is arranged in to the hauler, and hauler wire rope is connected with the lifting hook on the car top girder steel through the couple, pulls the car and reciprocates along the guide rail direction. When the elevator safety component test is carried out, the elevator needs to be driven by the traction machine to lift to a high position, then the hook is disconnected with the hook of the elevator, the elevator is enabled to fall freely, the safety component is driven to act to achieve the effect of braking and stopping by means of speed, displacement, deceleration and other data of the safety component action are detected through the sensor on the elevator.
If the traction machine hook is directly connected with the lifting hook of the lift car, the arc-shaped hook is almost impossible to separate, so that the traction steel wire rope and the lift car are required to fall down simultaneously, and if the rotation speed of the traction machine is reduced, the deceleration of the lift car is influenced, and then the test result is interfered; moreover, the work increases the burden of the traction machine, the performance requirement of the traction machine is higher, and unsafe factors exist.
If the structure of the hook or the lifting hook is changed, but if the hook and the lifting hook are separated by a manual contact operation party, potential safety hazards exist in the up-and-down running process of the lift car, and in the moment of separation, great danger exists for personal safety.
Disclosure of Invention
With the rapid development of economy and the continuous promotion of town, the demand of elevators as an important transportation means is geometrically multiplied, the safety problem of the elevators is increasingly highlighted, the elevator is particularly important as a safety component for guaranteeing the safety of the elevators, and the performance of the safety component of the elevators is the key, so that the elevator needs to be judged by a type test.
The test of elevator safety component needs professional test tower to go on, and the top of test tower is arranged in to the hauler, and hauler wire rope is connected with the lifting hook on the car top girder steel through the couple, pulls the car and reciprocates along the guide rail direction. When the elevator safety component test is carried out, the elevator needs to be driven by the traction machine to lift to a high position, then the hook is disconnected with the hook of the elevator, the elevator is enabled to fall freely, the safety component is driven to act to achieve the effect of braking and stopping by means of speed, displacement, deceleration and other data of the safety component action are detected through the sensor on the elevator.
If the traction machine hook is directly connected with the lifting hook of the lift car, the arc-shaped hook is almost impossible to separate, so that the traction steel wire rope and the lift car are required to fall down simultaneously, and if the rotation speed of the traction machine is reduced, the deceleration of the lift car is influenced, and then the test result is interfered; moreover, the work increases the burden of the traction machine, the performance requirement of the traction machine is higher, and unsafe factors exist.
If the structure of the hook or the lifting hook is changed, but if the hook and the lifting hook are separated by a manual contact operation party, potential safety hazards exist in the up-and-down running process of the lift car, and in the moment of separation, great danger exists for personal safety.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic front view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A in FIG. 2;
FIG. 4 is a B-B cross-sectional view of FIG. 2;
FIG. 5 is a cross-sectional view taken along the direction C-C in FIG. 2
FIG. 6 is a schematic perspective view of a hanging hole plate;
fig. 7 is a schematic front view of the orifice plate.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in the figure, the unhooking device for elevator safety component test comprises a hanging hole plate 1, two side baffle plates 2, a weight hanging plate 30, a hanging hook 19, a unhooking stop lever 21, a push rod 5, a push rod pushing unit and a counterweight unit;
the hanging hole plate 1 and the hanging hooks 19 are respectively fixed at the top and the bottom between the two side baffles 2, and the hanging hole plate 1 and the two side baffles 2 form a normally closed upper hanging hole 100; specifically, the hanging hole plate 1 is integrally U-shaped and consists of a left vertical section 101, a middle horizontal section and a right vertical section 102, the left vertical section 101 and the right vertical section 102 respectively extend downwards into the top between the two side baffles 2 and are fixed by welding, and the upper ends of the two side baffles 2 are utilized to seal the opening of the U-shaped opening along the edge 201, so that a normally closed upper hanging hole 100 is formed.
The lifting hook 19 is of an L shape as a whole and consists of a longitudinal section 191 and a transverse section 192, wherein the upper part of the longitudinal section 191 is fixed on the left side of the bottom between the two side baffles 2 through a cylindrical pin 18, a fastening nut and the like, the lower part of the longitudinal section 191 and the transverse section 192 are positioned below the lower end edges 202 of the two side baffles 2, the whole transverse section 192 extends to the right side, the upper end face 1921 of the transverse section 192 forms a smooth curved surface which extends obliquely to the lower right from the intersection of the left side and the longitudinal section 191 to the intersection of the right end and the right end face 1922 of the transverse section 192, and the right end face 1922 of the transverse section 192 is preferably a vertical surface; the upper part and the middle part of the unhooking bar 21 are arranged between the two side baffles 2, the middle part is rotationally connected with the two side baffles 2 through a connecting shaft 34, the lower part is positioned below the lower end edges 202 of the two side baffles 2, and when the unhooking bar 21 rotates to be in a vertical state as a whole, the left side surface of the lower part is closely abutted with the right end face 1922 of the transverse section 192 of the lifting hook 19, so that the lower part and the transverse section 192 of the longitudinal section 191 of the lifting hook 19, the lower part of the unhooking bar 21 and the lower end edges 202 of the two side baffles 2 form a closed lower hanging hole 200 together, and when the unhooking bar 21 rotates to enable the lower part to be separated from abutting contact with the transverse section 192 of the lifting hook 19, a notch is opened corresponding to the lower hanging hole 200, and as the lower hanging hole 200 is used for being connected with the lifting hook at the top of the lifting hook, the lifting hook of the lifting hook is separated from the electromagnetic unhooking device from the notch, and the lifting hook begins to fall.
As is apparent from the above, the lower hanging hole 200 is openable and closable, and the switching of the opened and closed states thereof is achieved by the rotatable and vertical state of the trip lever 21, and the weight hanger plate 30 is an important component for achieving the switching function.
The left part and the middle part of the weight hanging plate 30 are arranged between the two side baffles 2, the middle part is rotationally connected with the two side baffles through a pin shaft 31, and the right part of the weight hanging plate 30 is connected with a weight unit; the lower end surface of the left part of the weight hanging plate 30 is provided with a locking groove 301 matched with the top end of the upper part of the unhooking stop lever 21, the top end surface of the left part is provided with a dead bolt blind hole, the dead bolt blind hole is internally provided with a dead bolt pin 4 and a compression spring 3, under the action of the compression spring 3 and external force, the head part of the dead bolt pin 4 can extend and retract into the dead bolt blind hole along the axial direction, the right side part of the bottom end surface of the left vertical section 101 forms a horizontal dead bolt limiting surface 1012, the left side part of the bottom end surface of the left vertical section 101 protrudes downwards to form a boss part 1011, the boss part 1011 is provided with a horizontally communicated ejector rod through hole 10111, the right part of the ejector rod 5 slides through the ejector rod through hole 10111, the left part of the ejector rod 5 is connected with the ejector rod pushing unit, and the ejector rod 5 can integrally move rightwards under the driving of the ejector rod pushing unit;
when the lower part of the unhooking catch 21 is abutted against the right end face 1922 of the transverse section 192 of the lifting hook 19, the top end of the upper part of the unhooking catch 21 is embedded into and clamped by the locking groove 301 of the weight hanger plate 30, when the head of the lock tongue pin 4 extends out, the outer side face of the head abuts against the lock tongue limiting face 1012 to limit, and at the moment, the top end of the right part of the ejector rod 5 abuts against the top end face of the head of the lock tongue pin 4 coaxially.
When the ejector rod 5 is driven by the ejector rod pushing unit to integrally move rightward, the ejector rod 5 pushes the head of the lock tongue pin 4 to retract into the lock tongue blind hole until the lock tongue pin 4 is completely separated from contact with the lock tongue limiting surface 1012, the weight hanger plate 30 rotates clockwise under the action of the gravity unit connected with the right part, so that the locking groove 301 at the left part is separated from the top end of the upper part of the unhooking stop lever 21, the abutting and closing locking state of the lower part of the unhooking stop lever 21 and the transverse section 192 of the lifting hook 19 is released, the lower hanging hole 200 opens a notch, the lift car lifting hook is separated from the electromagnetic unhooking device from the notch, and the lift car starts to fall.
Preferably, in order to accelerate the release of the closed and locked state, the locking groove 301 is opened at a position close to the middle of the weight hanger plate 30 so as to enable the locking groove 301 to be disengaged from the unhooking bar 21 more rapidly.
Preferably, in order to prevent the push stroke of the push rod 5 from being too large, the middle part of the push rod 5 is also provided with a limiting stop shoulder 51 which is matched with the left side surface of the boss 1011 for limiting.
Further, the middle part of the weight hanger plate 30, namely the pin shaft 31 connected with the rotation of the side baffle plate 2, is arranged under the right vertical section 102 of the hanger plate 1, and the left part of the bottom end face of the right vertical section 102 forms a turnover limiting surface 1021 for limiting the angle of the left upper end face of the weight hanger plate 30, limiting the clockwise rotation limit position of the weight hanger plate 30, preventing excessive turnover, combining the turnover limiting surface 1021 with the hanger plate 1, effectively reducing the whole volume, combining the boss 1011, the lock tongue limiting surface 1012 with the left vertical section 101 of the hanger plate 1, and processing the avoidance surface 1013 on the left vertical section 101 to provide enough rotation space on the left top end of the weight hanger plate 30, and simultaneously playing the role of reducing the whole volume.
One of the functions of the two side guards 2 is to provide a limited protection in the horizontal direction when the portion of the counterweight hanger plate 30 and the trip bar 21 between the two side guards 2 is turned over, and the two side guards 2 provide a fixed clearance space required for turning over the counterweight hanger plate 30 and the trip bar 21 with the hanger hole plate 1 and the hooks 19 fixed therebetween, and allow the overall volume to be effectively controlled as well.
The ejector rod pushing unit capable of pushing the ejector rod 5 to the right integrally can have various structural forms, such as an air cylinder and a hydraulic cylinder, the ejector rod 5 is coaxially and fixedly connected to telescopic rods of the air cylinder and the hydraulic cylinder, and even the telescopic rods directly serve as the ejector rods, but the forms also need corresponding matched equipment such as a matched air source, a hydraulic oil source and the like, so that the whole equipment is too huge, a pipeline is complex, the installation is inconvenient, and the reaction speed is slower; the invention provides a structure with high reaction speed, small volume and high reliability, and as shown in the figure, the ejector rod pushing unit comprises a bracket 6, an L-shaped connecting plate 11, a beating plate 12 and a traction electromagnet 14; one side of the bracket 6 is fixedly connected to the two side baffles 2, the other side is fixedly connected with a longitudinal plate of the L-shaped connecting plate 11, the bottom surface of the transverse plate of the L-shaped connecting plate 11 is fixedly connected with the top end of the traction electromagnet 14, the beating plate 12 is hinged to the hinged lug plate 16, the hinged lug plate 16 also serves as a reinforcing rib to be welded and fixed with the transverse plate and the longitudinal plate of the L-shaped connecting plate 11 respectively, one side of the beating plate 12 is abutted against the ejector rod 5 to penetrate through the bracket 6 and the left top end of the longitudinal plate of the L-shaped connecting plate 11, the other side of the beating plate 12 is abutted against the top end of the traction electromagnet 14, vertically penetrates through the movable iron core 13 of the transverse plate of the L-shaped connecting plate 11, and the hinge point of the beating plate 12 and the hinged lug, the abutting point of the ejector rod 5 and the abutting point of the movable iron core 13 are respectively located at three vertexes of a triangle. When the traction electromagnet 14 is controlled to be started, the movable iron core 13 can be ejected upwards in a very short time, and the ejector rod 5 is pushed to the right integrally through the beating plate 12, so that the electromagnetic unhooking device can rapidly complete unhooking with the lifting hook at the top of the lift car.
Of course, the ejector rod pushing unit may also directly fix the traction electromagnet 14 transversely and the side baffle 2 via a connecting piece such as a bracket, and fix the movable iron core 13 and the ejector rod 5 coaxially, so that the intermediate power transmission is omitted and the beating plate 12 for changing the power transmission direction is omitted, but this may make the width of the whole unhooking device in the transverse direction larger, and the reset of the movable iron core 13 is not facilitated due to the transverse arrangement of the movable iron core 13.
The invention also provides a structural form of the counterweight unit, as shown in the figure, the counterweight unit comprises a counterweight connecting rod 26, a plurality of counterweights 28 and a counterweight supporting plate 27, the right part of the counterweight hanging plate 30 is provided with a first vertically-through strip through hole 302, the length direction of the first strip through hole 302 is parallel to the length direction of the counterweight hanging plate 30, the top of the counterweight connecting rod 26 passes through the first strip through hole 302 and is limited and hoisted by a limiting nut, the counterweight supporting plate 27 is arranged right below the counterweight hanging plate 30 and is fixed with two side baffles 2, the counterweight supporting plate 27 is provided with a second vertically-through strip through hole 271, the length direction of the second strip through hole 271 is coplanar with the length direction of the counterweight hanging plate 30, the lower part of the counterweight connecting rod 26 passes through the second strip through hole 271, the counterweights 28 are sleeved and fixed on the middle part of the counterweight connecting rod 26 and are positioned between the counterweight hanging plate 30 and the counterweight supporting plate 27, and the first strip through hole 302 and the second strip through hole 271 have the functions of providing a certain activity allowance for the counterweight connecting rod 26 in unlocking and playing a limiting role in the overturning at the right part of the counterweight hanging plate 30, so that the counterweight 28 and the side baffles 2 are prevented from colliding with the side baffles 2, and most important hooks can be separated from the lifting hooks 19 in order to be more conveniently incline from a lift car.
Further, the counterweight unit further comprises a reset rod 20, the reset rod 20 is located in an area outside the two side baffles 2, the middle of the reset rod 20 is rotationally connected with the connecting shaft 34, the top end of the right part of the reset rod 20 can be propped against the bottom of the counterweight 28 at the lowest end, preferably, the length of the left part of the reset rod 20 is greater than that of the right part, so that the counterweight 28 can be jacked up easily by utilizing the lever principle, and the right part of the counterweight hanger plate 30 is lifted by auxiliary cooperation so as to restore the locking of the unhook stop lever 21.
Further, a shifting plate 22 which is convenient for shifting, overturning and resetting the unhooking stop lever 21 is arranged at the lower part of the unhooking stop lever.
Further, safety pin insertion holes are correspondingly formed in the two side baffles 2 so as to insert the unhooking safety pins 39, and the positions of the safety pin insertion holes are located on the left side surface, which is close to the upper part of the unhooking stop lever 21 when the lower part of the unhooking stop lever 21 is abutted against the transverse section 192 of the lifting hook 19 to be closed, and at the moment, the unhooking safety pins 39 are inserted so as to prevent the upper top end of the unhooking stop lever 21 from being accidentally separated from the locking groove 301.
When the elevator safety component is tested and the elevator needs to fall, the hook on the steel wire rope of the traction machine is connected with the upper hanging hole 100 of the unhooking device, then the hanging hook 19 of the unhooking device penetrates through the round hanging hook at the top of the elevator car, so that the traction machine, the unhooking device and the elevator car are connected into a whole, and the traction electromagnet 14 of the unhooking device is connected with the test bed through a cable. When test equipment is ready, the safety pin 39 of the unhooking device is taken down, the traction machine drives the unhooking device and the lift car to move upwards to reach the required height, at the moment of switching on the power supply, the traction electromagnet 14 pushes the movable iron core 13 to move upwards, the movable iron core 13 pushes the beating plate 12 to rotate, the beating plate presses the push rod 5 rightwards, the push rod 5 presses the lock tongue pin 4 on the weight hanging plate 30 along with the push rod 5, when the lock tongue pin 4 is retracted for a certain distance, the lock tongue limiting surface 1012 can not block the lock tongue pin 4 any more, because the other end of the weight hanging plate 30 is connected with the counterweight unit, the weight hanging plate 30 rotates clockwise around the pin shaft 31 under the action of gravity, at the moment, the locking groove 301 of the weight hanging plate 30 moves upwards along with rotation, the top end of the unhooking baffle 21 is not blocked, so the unhooking baffle 21 can also rotate around the connecting shaft 34, the unhooking device can incline rightwards at the moment due to the influence of the counterweight 28, and the lift car hook can be opened under the action of the gravity of the lift car so as to realize free falling.
Because the unhooking device is driven to act through electromagnetism, the electric signal only happens in the moment from sending to acting completion, the influence on the test is very little at the moment, meanwhile, the safety of operators is ensured, and the risk of accidents is reduced.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The unhooking device for elevator safety component test is characterized by comprising a hanging hole plate (1), two side baffles (2), a weight hanging plate (30), a lifting hook (19), a unhooking stop lever (21), a push rod (5), a push rod pushing unit and a weight unit;
the hanging hole plate (1) and the hanging hooks (19) are respectively fixed at the top and the bottom between the two side baffles (2), and the hanging hole plate (1) and the two side baffles (2) form a normally closed upper hanging hole (100);
the lifting hook (19) is L-shaped integrally, the upper part of a longitudinal section (191) of the lifting hook is fixed at the left side of the bottom between the two side baffles (2), the lower part of the longitudinal section (191) and a transverse section (192) are positioned below the lower end edges (202) of the two side baffles (2), and the transverse section (192) extends to the right side integrally; the upper part and the middle part of the unhooking stop lever (21) are arranged between the two side baffles (2), the middle part is rotationally connected with the two side baffles (2) through a connecting shaft (34), the lower part is positioned below the lower end edges (202) of the two side baffles (2), and when the unhooking stop lever (21) can rotate until the lower part thereof is tightly abutted against the right end face (1922) of the transverse section (192) of the lifting hook (19);
the left part and the middle part of the weight hanging plate (30) are arranged between the two side baffles (2), the middle part is rotationally connected with the two side baffles through a pin shaft (31), and the right part of the weight hanging plate (30) is connected with a counterweight unit; a locking groove (301) matched with the top end of the upper part of the unhooking stop lever (21) is formed in the lower end surface of the left part of the weight hanging plate (30), a lock tongue pin (4) with the head capable of elastically stretching out and retracting back along the axial direction of the lock tongue pin is arranged at the top end of the left part, a lock tongue limiting surface (1012) and a boss part (1011) are arranged between the two side baffles, a horizontally-through ejector rod through hole (10111) is formed in the boss part (1011), the right part of the ejector rod (5) slides through the ejector rod through hole (10111), the left part of the ejector rod (5) is connected with the ejector rod pushing unit, and the ejector rod (5) can integrally move rightwards under the driving of the ejector rod pushing unit; when the lower part of the unhooking stop lever (21) is abutted against the right end face (1922) of the transverse section (192) of the lifting hook (19), the top end of the upper part of the unhooking stop lever (21) is embedded into the locking groove (301) of the weight hanger plate (30) and clamped by the locking groove, the lock tongue limiting surface (1012) abuts against the outer side face of the head part extending out of the limiting lock tongue pin (4), and the top end of the right part of the ejector rod (5) is abutted against the top end face of the head part of the lock tongue pin (4) coaxially.
2. The unhooking device for elevator safety component testing according to claim 1, wherein an upper end surface (1921) of a lateral section (192) of the lifting hook (19) forms a smooth curved surface extending obliquely downward and rightward from an intersection of a left side with the longitudinal section (191) to an intersection of a right end with a right end surface (1922) of the lateral section (192).
3. The detacher for elevator safety component test according to claim 1, wherein the locking groove (301) is open in a position immediately adjacent to the middle of the weight hanger plate (30).
4. The unhooking device for elevator safety component testing according to claim 1, wherein a limiting shoulder (51) which is matched and limited with the left side surface of the boss part (1011) is further arranged in the middle of the ejector rod (5).
5. The unhooking device for elevator safety component testing according to claim 1, wherein the hanging hole plate (1) is integrally U-shaped and consists of a left vertical section (101), a middle horizontal section and a right vertical section (102), the left vertical section (101) and the right vertical section (102) respectively extend downwards into the top between the two side baffles (2) and are fixed by welding, and the U-shaped opening is closed by utilizing the upper end edges (201) of the two side baffles (2), so that a normally closed upper hanging hole (100) is formed.
6. The unhooking device for elevator safety component testing according to claim 5, wherein a horizontal lock tongue limit surface (1012) is formed on the right side of the bottom surface of the left vertical section (101) of the hanging hole plate (1), and a boss portion (1011) is formed by projecting the left side of the bottom surface of the left vertical section (101) downward.
7. The unhooking device for elevator safety component testing according to claim 5, wherein the middle part of the weight hanging plate (30) is arranged right below the right vertical section (102) of the hanging plate (1), and the left part of the bottom end surface of the right vertical section (102) forms an overturning limiting surface (1021) for limiting the angle of the left upper end surface of the weight hanging plate (30).
8. The unhooking device for elevator safety component test according to claim 1, wherein the ejector rod pushing unit comprises a bracket (6), an L-shaped connecting plate (11), a beating plate (12) and a traction electromagnet (14); one side of the bracket (6) is fixedly connected to the two side baffles, the other side is fixedly connected with a longitudinal plate of the L-shaped connecting plate (11), the bottom surface of the transverse plate of the L-shaped connecting plate (11) is fixedly connected with the top end of the traction electromagnet (14), the beating plate (12) is hinged to the hinged lug plate (16), the hinged lug plate (16) is respectively welded and fixed with the transverse plate and the longitudinal plate of the L-shaped connecting plate (11), one side of the beating plate (12) is abutted against the top end of the left part of the ejector rod (5) penetrating through the bracket (6) and the longitudinal plate of the L-shaped connecting plate (11), the other side of the beating plate (12) is abutted against the top end of the traction electromagnet (14) vertically penetrating through the movable iron core (13) of the transverse plate of the L-shaped connecting plate (11), and the hinging point of the beating plate (12) and the abutting point of the ejector rod (5) are respectively located at three vertexes of a triangle.
9. The unhooking device for elevator safety component test according to claim 1, wherein the counterweight unit comprises a counterweight connecting rod (26), a plurality of balancing weights (28) and a counterweight supporting plate (27), a first long-strip through hole (302) vertically penetrating is formed in the right part of the counterweight hanging plate (30), the length direction of the first long-strip through hole (302) is parallel to the length direction of the counterweight hanging plate (30), the top of the counterweight connecting rod (26) penetrates through the first long-strip through hole (302) and is limited and hoisted through a limiting nut, the counterweight supporting plate (27) is arranged right below the counterweight hanging plate (30) and is fixed with two side baffles (2), a second long-strip through hole (271) vertically penetrating is formed in the counterweight supporting plate (27), the length direction of the second long-strip through hole (271) is coplanar with the length direction of the counterweight hanging plate (30), the lower part of the counterweight connecting rod (26) penetrates through the second long-strip through hole (271), and the plurality of balancing weights are sleeved and fixed on the middle part of the counterweight connecting rod (26) and are located between the counterweight hanging plate (30) and the counterweight supporting plate (27).
10. The unhooking device for elevator safety part testing according to claim 1, wherein safety pin insertion holes for inserting unhooking safety pins (39) are correspondingly formed in the two side baffles (2), the safety pin insertion holes are positioned on the left side surface of the upper part of the unhooking stop lever (21) which is close to the upper part of the unhooking stop lever (21) when the lower part of the unhooking stop lever (21) is abutted and closed with the transverse section (192) of the lifting hook (19), and the inserted unhooking safety pins (39) can be abutted on the left side surface of the upper part of the limiting unhooking stop lever (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110254799.7A CN113044689B (en) | 2021-03-09 | 2021-03-09 | Unhooking device for elevator safety component test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110254799.7A CN113044689B (en) | 2021-03-09 | 2021-03-09 | Unhooking device for elevator safety component test |
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| CN113044689A CN113044689A (en) | 2021-06-29 |
| CN113044689B true CN113044689B (en) | 2024-04-09 |
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| CN202110254799.7A Active CN113044689B (en) | 2021-03-09 | 2021-03-09 | Unhooking device for elevator safety component test |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564721A (en) * | 2011-12-14 | 2012-07-11 | 上海大学 | Automatic unhooking device for safety net test body |
| CN204130047U (en) * | 2014-08-08 | 2015-01-28 | 中山市合泽设备科技有限公司 | A kind of elevator governor safety tongs linkage test platform |
| CN205120361U (en) * | 2015-11-13 | 2016-03-30 | 中信重工机械股份有限公司 | Experimental wireless remote control detacher of using of cage safety hook unhook |
| CN106629286A (en) * | 2016-12-13 | 2017-05-10 | 上海交通大学 | Falling testing tower |
| CN209024052U (en) * | 2018-10-17 | 2019-06-25 | 湖北仁泰恒昌科技发展有限公司 | A kind of detacher for the test of all steel frame fall arrest |
| CN210603881U (en) * | 2019-12-04 | 2020-05-22 | 重庆奔飞工业技术服务有限公司 | Detacher for cage falling protector unhooking test |
-
2021
- 2021-03-09 CN CN202110254799.7A patent/CN113044689B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564721A (en) * | 2011-12-14 | 2012-07-11 | 上海大学 | Automatic unhooking device for safety net test body |
| CN204130047U (en) * | 2014-08-08 | 2015-01-28 | 中山市合泽设备科技有限公司 | A kind of elevator governor safety tongs linkage test platform |
| CN205120361U (en) * | 2015-11-13 | 2016-03-30 | 中信重工机械股份有限公司 | Experimental wireless remote control detacher of using of cage safety hook unhook |
| CN106629286A (en) * | 2016-12-13 | 2017-05-10 | 上海交通大学 | Falling testing tower |
| CN209024052U (en) * | 2018-10-17 | 2019-06-25 | 湖北仁泰恒昌科技发展有限公司 | A kind of detacher for the test of all steel frame fall arrest |
| CN210603881U (en) * | 2019-12-04 | 2020-05-22 | 重庆奔飞工业技术服务有限公司 | Detacher for cage falling protector unhooking test |
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| Publication number | Publication date |
|---|---|
| CN113044689A (en) | 2021-06-29 |
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