CN112520529A - Elevator safety tongs that can be used to multiple orbit - Google Patents
Elevator safety tongs that can be used to multiple orbit Download PDFInfo
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- CN112520529A CN112520529A CN202011374507.5A CN202011374507A CN112520529A CN 112520529 A CN112520529 A CN 112520529A CN 202011374507 A CN202011374507 A CN 202011374507A CN 112520529 A CN112520529 A CN 112520529A
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- 229910000831 Steel Inorganic materials 0.000 description 8
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- 238000004806 packaging method and process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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Abstract
The invention relates to an elevator safety gear capable of being used for various running tracks, which comprises: safety tongs mount, the pincers body, slide row, voussoir, limiting plate, voussoir drag link, actuating mechanism, rotation axis, upper portion wheel components and lower part wheel components. The elevator safety tongs can be used for not only a common elevator with a linear running track, but also a special elevator with an arc running guide rail, and have high safety, and meanwhile, a speed limiter device can be omitted, the structure is simplified, potential safety hazards are reduced, and the cost is reduced.
Description
Technical Field
The invention relates to a safety gear, in particular to a safety gear suitable for elevator guide rails with various running tracks such as straight lines, curves and the like.
Background
The safety tongs are an important safety device of elevator equipment, are important components of an elevator with an enhanced safety protection function, are generally arranged on an elevator car frame or a counterweight frame, and provide an effective protection effect on the safe operation of the elevator.
The safety gear cannot be triggered by itself and must be used by matching with a speed limiter. Under the operation of the speed limiter, when the speed of the elevator exceeds the set limit speed of the elevator speed limiter, or when the suspension rope is broken and loosened, the speed limiter acts to enable the rope clamping pincers to clamp the steel wire rope of the speed limiter so as to enable the steel wire rope of the speed limiter to stop running, at the moment, along with the downward running of the elevator car, the steel wire rope of the speed limiter lifts a safety pincers link mechanism arranged on a lower beam or an upper beam of the elevator car through a lifting mechanism, the safety pincers link mechanism acts to drive safety pincers braking elements on two sides of the elevator car to be in contact with the guide rail, and the safety pincers on two sides of the guide rail are simultaneously clamped on the guide rail so as. Meanwhile, the electric switches arranged on the speed limiter and the safety tongs act to cut off a safety loop of a control system, so that the motor stops running. To ensure the life safety of passengers taking the elevator in the overspeed condition of the elevator.
For example, patent application CN 202142236U discloses a safety gear, which includes a lifting lever, a rotating lever, a spring and a braking wheel, when the elevator is too fast to ascend or descend, the pawl of the speed limiter is engaged with the ratchet wheel under the action of centrifugal force, so that the ratchet wheel drives the rope braking mechanism to clamp the rope of the speed limiter, the second connecting arm of the speed limiter lifts the lifting lever of the safety gear upwards, and the braking wheel is pressed against the elevator guide rail to stop or decelerate the elevator, thereby realizing safe landing. Due to the fact that the speed limiter and the safety tongs are used in a matched mode, the whole linkage process is complex, links are multiple, once a certain link goes wrong, if the situation that a steel wire rope is broken or the speed limiter fails, the safety tongs cannot act, and the elevator is caused to have great potential safety hazards.
For another example, patent application CN 103274274 a discloses a safety gear, which comprises a speed-limiting rope, a movable rod, a limiting rod, a brake wheel slider and a brake wheel, wherein the safety gear is composed of two parts with the same braking structure, and is distributed on two sides of a guide rail, so that the brake wheel and the guide rail are uniformly contacted and stressed, the deformation of the guide rail in the using process is reduced, the damage of an elevator in the operation process is reduced, the braking effect is greatly enhanced, and the service life and the safety of the elevator are ensured. However, it is only suitable for the ordinary elevator with linear running guide rail, and on the special elevator with arc running guide rail, because the running guide rail of the car has a certain radian, the running track of the safety tongs is not consistent with the guide rail, and the gap between the safety tongs block and the guide rail surface can not always keep the same distance, and can not meet the use requirement. If the clearance between the clamp block and the guide rail surface is too small, friction can occur, so that the safety clamp malfunctions, and the cage decelerates without any reason or even stops running. On the contrary, if the clearance between the clamp block and the guide rail surface is too large, the clamp block and the guide rail surface cannot be in sufficient contact, and sufficient friction force cannot be generated, so that the speed of the lift car is reduced slowly, and even the stop of the lift car is difficult.
For example, patent application CN101804934A discloses a safety gear, which is provided on a fixing plate, wherein a pair of roller guide shoes are symmetrically provided on two sides of the safety gear on the fixing plate, and a rotating shaft is provided in the middle of the fixing plate, the roller guide shoes operate to drive the fixing plate to operate and drive the rotating shaft to rotate, so as to drive the safety gear fixed on the fixing plate to operate synchronously in the same direction, so that the safety gear can be applied to an arc-shaped guide rail. But the matched use structure of the speed limiter and the safety tongs is not improved, so that the elevator still has great potential safety hazard.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the invention provides the elevator safety tongs applicable to various operation tracks, which can realize safe and normal operation on elevators with various operation tracks, simultaneously can omit the installation of a speed limiter device, simplify the structure, reduce potential safety hazards, reduce the cost and effectively solve the problems in the background technology.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the embodiment of the invention discloses an elevator safety gear capable of being used for various running tracks, which comprises a safety gear fixing frame and a gear body, wherein the safety gear fixing frame is fixedly connected with the gear body;
the limiting plate is fixedly connected with the pliers body, a sliding row is arranged in the limiting plate, the limiting plate is connected with a wedge block in a sliding mode, the wedge block is connected with one end of a wedge block lifting rod, the wedge block lifting rod is located on the upper portion of the pliers body, the other end of the wedge block lifting rod is connected with a driving mechanism, and the driving mechanism is connected with the safety pliers fixing frame;
the rotating shaft is inserted into the safety gear fixing frame and extends to the outside of the safety gear fixing frame;
the upper roller assembly is positioned at the upper part of the safety gear fixing clamp, and the lower roller assembly is positioned at the lower part of the safety gear fixing rack;
an elevator guide rail connected with the upper roller assembly and the lower roller assembly.
In any of the above schemes, preferably, the driving mechanism includes an electromagnet core, the electromagnet core is connected to the other end of the wedge block lifting rod, and the electromagnet core is wrapped on the wedge block lifting rod.
In any of the above schemes, preferably, an electromagnetic coil is arranged outside the electromagnetic core, and a tension spring is arranged between the electromagnetic core and the safety gear fixing frame.
In any of the above schemes, preferably, the driving mechanism further includes a hydraulic cylinder, the hydraulic cylinder is located above the safety gear fixing frame, and the hydraulic cylinder is connected with the safety gear fixing frame through a connecting piece.
In any of the above schemes, preferably, the driving mechanism further comprises a hydraulic pump station, a plunger, and an oil delivery pipe, wherein the plunger is connected with the other end of the wedge lifting rod, the hydraulic pump station is arranged outside the safety gear fixing frame, and the hydraulic pump station is connected with the hydraulic cylinder through the oil delivery pipe.
In any of the above aspects, preferably, the plunger is located within the hydraulic cylinder, and the plunger is extendable and retractable within the hydraulic cylinder.
In any of the above schemes, preferably, the adjusting spring is arranged on the caliper body, and the adjusting spring is connected with the caliper body through an adjusting spring fixing screw rod.
In any of the above schemes, preferably, the upper roller assembly includes an upper roller, an upper roller fixing plate and an upper roller shaft, and the upper roller fixing plate is fixedly connected with the safety gear fixing frame and is close to the elevator guide rail; the upper roller shaft is connected with the upper roller fixing plate through a connecting piece, the upper roller shaft is located in the upper roller fixing plate, the upper roller shaft is connected with the axis of the upper roller, and the upper roller is connected with the upper roller fixing plate through the upper roller shaft.
In any of the above schemes, preferably, the lower roller assembly includes a lower roller, a lower roller fixing plate and a lower roller shaft, and the lower roller fixing plate is fixedly connected with the safety gear fixing frame and is close to the elevator guide rail; the lower roller shaft is connected with the lower roller fixing plate 15 through a connecting piece, the lower roller is located in the lower roller fixing plate, the lower roller shaft is connected with the axis of the lower roller, and the lower roller is connected with the lower roller fixing plate through the lower roller shaft.
In any of the above aspects, preferably, the upper roller and the lower roller are attached to a rail surface of the elevator guide rail.
Compared with the prior art, the lock system provided by the invention has the beneficial effects that:
the safety gear wedge block is driven to act through a driving mechanism on a circuit control safety gear linked with a speed sensor, a speed limiter in the prior art is replaced to drive the safety gear to act through a steel wire rope, a speed limiter device can be omitted, a steel wire rope of the speed limiter is omitted, the structure is simplified, potential safety hazards are reduced, and meanwhile the cost is reduced.
And secondly, through the matching of a rotating shaft fixed on the safety tongs body and the front and rear groups of guide rollers, the same safety clearance is ensured to be always kept between the safety tongs block and the guide rail surface, so that the safety tongs not only can be used on a common elevator with a linear running track, but also can be used on a special elevator with an arc running guide rail, and have high safety.
Drawings
The drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
Fig. 1 is a schematic structural diagram of an elevator safety gear which can be used in various running tracks according to a first embodiment of the invention;
fig. 2 is a left side view of an elevator safety gear applicable to various operation tracks according to a first embodiment of the present invention;
fig. 3 is a plan view of an elevator safety gear applicable to various operation tracks according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of an elevator safety gear which can be used in various operation tracks according to a second embodiment of the invention;
fig. 5 is a left side view of an elevator safety gear applicable to various operation tracks according to a second embodiment of the present invention;
fig. 6 is a top view of an elevator safety gear applicable to various travel paths according to a second embodiment of the present invention.
The reference numbers in the figures illustrate:
1. a safety gear fixing frame; 2. a clamp body; 3. a sliding row; 4. a wedge block; 5. a limiting plate; 6. a tension spring; 7. adjusting the spring fixing screw rod; 8. a wedge block lifting rod; 9. an electromagnetic coil; 10. an electromagnet core; 11. an elevator guide rail; 12. adjusting the spring; 13. a rotating shaft; 14. a lower roller; 15. a lower roller fixing plate; 16. a lower roller shaft; 17. an upper roller; 18. an upper roller fixing plate; 19. an upper roller shaft; 6', a hydraulic pump station; 8', a plunger; 9', an oil delivery pipe; 10' and a hydraulic cylinder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
For better understanding of the above technical solutions, the technical solutions of the present invention will be described in detail below with reference to the drawings and the detailed description of the present invention.
Example 1:
as shown in fig. 1, an elevator safety gear applicable to various operation trajectories includes a safety gear fixing frame 1, a gear body 2, a sliding bar 3, a wedge block 4, and a limiting plate 5, wherein the safety gear fixing frame 1 is fixedly connected with the gear body 2 through a connecting member, the gear body 2 is fixedly connected with the limiting plate 5 through a connecting member, the limiting plate 5 is fixedly connected with the sliding bar 3 through a connecting member, and the sliding bar 3 is fixed in the limiting plate 5; the connecting piece is screw or bolt, adopts screw or bolted connection, can conveniently dismantle and make up, can improve the packaging efficiency, for the structural strength of improvement equipment, also can adopt the welded mode, can improve the joint strength between the equipment, makes it more durable.
The wedge block 4 is placed in the limiting plate 5, the wedge block 4 is wrapped by the limiting plate 5, and then the wedge block 4 can slide up and down along the limiting plate 5 when working, so that the situation that the wedge block 4 is separated when working can be avoided; one end of the wedge block 4 is connected with one end of the wedge block lifting rod 8 through a connecting piece, the connecting piece is a screw or a bolt, and the connecting piece is connected through the screw or the bolt, so that the disassembly and the assembly can be convenient, and the assembly efficiency can be improved; the wedge block lifting rod 8 is located on the upper portion of the caliper body 2, the adjusting spring 12 is arranged on the caliper body 2, the adjusting spring 12 is connected with the caliper body 2 through an adjusting spring fixing screw 7, and the adjusting spring 12 is used for adjusting the gap and the pressing force of the wedge block 4.
As shown in fig. 1 and 3, the elevator safety gear applicable to various operation tracks further comprises a driving mechanism, wherein the driving mechanism comprises a tension spring 6, an electromagnetic coil 9 and an electromagnet core 10, the electromagnet core 10 is connected with the other end of the wedge block lifting rod 8, and the electromagnet core 10 is coated on the wedge block lifting rod 8; the electromagnetic coil 9 is arranged outside the electromagnetic core 10, and the electromagnetic coil 9 is wrapped outside the electromagnetic core 10 and used for controlling the elevator safety gear to keep the elevator safety gear at a working position; the tension spring 6 is installed between the electromagnetic core 10 and the safety gear fixing frame 1, when the electromagnetic coil 9 is powered off, the tension spring 6 pulls the electromagnetic core 10 to ascend, and then the electromagnetic core 10 drives the wedge block connecting rod 8, so that the wedge block connecting rod 8 pulls the wedge block 4 to ascend.
As shown in fig. 1 and 2, the elevator safety gear for various operation tracks further comprises an upper roller assembly and a lower roller assembly, wherein the upper roller assembly is positioned at the upper part of the safety gear fixing gear 1, and the lower roller assembly is positioned at the lower part of the safety gear fixing gear 1; the upper roller assembly comprises an upper roller 17, an upper roller fixing plate 18 and an upper roller shaft 19, wherein the upper roller fixing plate 18 is fixedly connected with the safety gear fixing frame 1 through a connecting piece and is close to the elevator guide rail 11; the upper roller shaft 19 is connected with the upper roller fixing plate 18 through a connecting piece, and the upper roller shaft 19 is positioned in the upper roller fixing plate 18; the connecting pieces are screws or bolts, the screws or bolts are adopted for connection, the disassembly and the assembly can be convenient, the assembly efficiency can be improved, in order to improve the structural strength of the equipment, a welding mode can also be adopted, the connection strength between the equipment can be improved, and the equipment is more durable; the upper roller shaft 19 is connected with the axis of the upper roller 17, the upper roller 17 is connected with the upper roller fixing plate 18 through the upper roller shaft 19, and the upper roller 17 is attached to the rail surface of the elevator guide rail 11.
The lower roller assembly comprises a lower roller 14, a lower roller fixing plate 15 and a lower roller shaft 16, wherein the lower roller fixing plate 15 is fixedly connected with the safety gear fixing frame 1 through a connecting piece and is close to the elevator guide rail 11; the lower roller shaft 16 is connected with the lower roller fixing plate 15 through a connecting piece, and the lower roller 16 is positioned in the lower roller fixing plate 15; the connecting pieces are screws or bolts, the screws or bolts are adopted for connection, the disassembly and the assembly can be convenient, the assembly efficiency can be improved, in order to improve the structural strength of the equipment, a welding mode can also be adopted, the connection strength between the equipment can be improved, and the equipment is more durable; the lower roller shaft 16 is connected with the axis of the lower roller 14, the lower roller 14 is connected with the lower roller fixing plate 15 through the lower roller shaft 16, and the lower roller 14 is attached to the rail surface of the elevator guide rail 11; the upper roller assembly and the lower roller assembly are used for jacking the rail surface of the elevator guide rail 11; when the elevator safety gear runs along with an elevator, the elevator safety gear can rotate by taking the rotating shaft 13 as the center according to the change of the running track of the elevator guide rail 11, so that the danger of collision is avoided.
The working principle is as follows:
when the running speed of the elevator exceeds the limit value of the designed speed, the elevator speed sensor cuts off the power supply of the electromagnetic coil 9 in the elevator safety gear, at the moment, the electromagnetic coil 9 inhibits the force of the electromagnetic core 10 from losing, at the moment, the tension spring 6 pulls the electromagnetic core 10 to ascend, and then the electromagnetic core 10 drives the wedge block connecting rod 8, so that the wedge block connecting rod 8 pulls the wedge block 4 to ascend; and the wedge block 4 can slide upwards on the sliding row 3 along the up-and-down direction of the limiting plate 5 during operation, so that the elevator safety tongs clamp the elevator guide rail 11, and the safety braking under the overspeed condition of the elevator is realized.
Example 2:
as shown in fig. 4, an elevator safety gear applicable to various operation trajectories includes a safety gear fixing frame 1, a gear body 2, a sliding bar 3, a wedge block 4, and a limiting plate 5, where the safety gear fixing frame 1 is fixedly connected to the gear body 2 through a connecting member, the gear body 2 is fixedly connected to the limiting plate 5 through a connecting member, the limiting plate 5 is fixedly connected to the sliding bar 3 through a connecting member, and the sliding bar 3 is fixed in the limiting plate 5; the connecting piece is screw or bolt, adopts screw or bolted connection, can conveniently dismantle and make up, can improve the packaging efficiency, for the structural strength of improvement equipment, also can adopt the welded mode, can improve the joint strength between the equipment, makes it more durable.
The voussoir 4 is placed in the limiting plate 5, just voussoir 4 by limiting plate 5 parcel, and then work as voussoir 4 can be along when carrying out work limiting plate 5 slides from top to bottom, can avoid voussoir 4 is carrying out the during operation, the condition of deviating from appears. One end of the wedge block 4 is connected with one end of the wedge block lifting rod 8 through a connecting piece, the connecting piece is a screw or a bolt, the screw or the bolt is adopted for connection, the disassembly and the assembly can be facilitated, the assembly efficiency can be improved, the wedge block lifting rod 8 is located on the upper portion of the clamp body 2, the adjusting spring 12 is arranged on the clamp body 2, the adjusting spring 12 is connected with the clamp body 2 through an adjusting spring fixing screw rod 7, and the adjusting spring 12 is used for adjusting the gap and the pressing force of the wedge block 4.
As shown in fig. 4 and 6, the elevator safety gear applicable to various operation tracks further comprises a driving mechanism, wherein the driving mechanism further comprises a hydraulic pump station 6 ', a plunger 8', an oil pipeline 9 'and a hydraulic cylinder 10'; the plunger 8 ' is connected with the other end of the wedge block lifting rod 8, and the plunger 8 ' is positioned in the hydraulic cylinder 10 ' so as to realize that the plunger 8 ' can extend and contract in the hydraulic cylinder 10 '; the hydraulic pump station 6 'is arranged outside the safety gear fixing frame 1, and the hydraulic pump station 6' is connected with the hydraulic cylinder 10 'through the oil pipeline 9'; the hydraulic cylinder 10 'is located above the safety gear fixing frame 1, and the hydraulic cylinder 10' is connected with the safety gear fixing frame 1 through a connecting piece. When the elevator safety gear works, the plunger 8 ' extends and retracts in the hydraulic cylinder 10 ', and the work of the hydraulic cylinder 10 ' is controlled by the hydraulic pump station 6 ' through the oil pipeline 9 '.
As shown in fig. 4 and 5, the elevator safety gear for various operation tracks further comprises an upper roller assembly and a lower roller assembly, wherein the upper roller assembly is positioned at the upper part of the safety gear fixing gear 1, and the lower roller assembly is positioned at the lower part of the safety gear fixing gear 1; the upper roller assembly comprises an upper roller 17, an upper roller fixing plate 18 and an upper roller shaft 19, wherein the upper roller fixing plate 18 is fixedly connected with the safety gear fixing frame 1 through a connecting piece and is close to the elevator guide rail 11; the upper roller shaft 19 is connected with the upper roller fixing plate 18 through a connecting piece, and the upper roller shaft 19 is positioned in the upper roller fixing plate 18; the upper roller shaft 19 is connected with the axis of the upper roller 17, the upper roller 17 is arranged on the upper roller fixing plate 18 through the upper roller shaft 19, and the upper roller 17 is attached to the rail surface of the elevator guide rail 11.
The lower roller assembly comprises a lower roller 14, a lower roller fixing plate 15 and a lower roller shaft 16, wherein the lower roller fixing plate 15 is fixedly connected with the safety gear fixing frame 1 through a connecting piece and is close to the elevator guide rail 11; the lower roller shaft 16 is connected with the lower roller fixing plate 15 through a connecting piece, and the lower roller 16 is positioned in the lower roller fixing plate 15; the lower roller shaft 16 is connected with the axis of the lower roller 14, the lower roller 14 is arranged on the lower roller fixing plate 15 through the lower roller shaft 16, and the lower roller 14 is attached to the rail surface of the elevator guide rail 11; the upper roller assembly and the lower roller assembly are used for jacking the rail surface of the elevator guide rail 11; when the elevator safety gear runs along with an elevator, the elevator safety gear can rotate by taking the rotating shaft 13 as the center according to the change of the running track of the elevator guide rail 11, so that the danger of collision is avoided.
The working principle is as follows:
when the running speed of the elevator exceeds the limit value of the designed speed, the elevator speed sensor gives a signal to the hydraulic pump station 6 ', the hydraulic pump station 6' controls the hydraulic cylinder 10 'through the oil pipeline 9', and the hydraulic cylinder 10 'contracts the plunger 8' so as to lift the wedge block lifting rod 8, so that the wedge block connecting rod 8 pulls the wedge block 4 to ascend; and the wedge block 4 can slide upwards on the sliding row 3 along the up-and-down direction of the limiting plate 5 during operation, so that the elevator safety tongs clamp the elevator guide rail 11, and the safety braking under the overspeed condition of the elevator is realized. The driving mechanism on the elevator safety gear is controlled by a circuit linked with a speed sensor, and the hydraulic cylinder 10' is driven to pull the wedge block 4 in the elevator safety gear to move.
In conclusion, the elevator safety gear capable of being used for various running tracks provided by the invention has the following advantages:
the safety gear wedge block is driven to act through a driving mechanism on a circuit control safety gear linked with a speed sensor, a speed limiter in the prior art is replaced to drive the safety gear to act through a steel wire rope, a speed limiter device can be omitted, a steel wire rope of the speed limiter is omitted, the structure is simplified, potential safety hazards are reduced, and meanwhile the cost is reduced.
And secondly, through the matching of a rotating shaft fixed on the safety tongs body and the front and rear groups of guide rollers, the same safety clearance is ensured to be always kept between the safety tongs block and the guide rail surface, so that the safety tongs not only can be used on a common elevator with a linear running track, but also can be used on a special elevator with an arc running guide rail, and have high safety.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an elevator safety gear that can be used to multiple orbit which characterized in that: the method comprises the following steps:
the safety gear fixing rack comprises a safety gear fixing rack (1) and a gear body (2), wherein the safety gear fixing rack (1) is fixedly connected with the gear body (2);
the limiting plate (5), the limiting plate (5) is fixedly connected with the caliper body (2), a sliding row (3) is arranged in the limiting plate (5), the limiting plate (5) is slidably connected with a wedge block (4), the wedge block (4) is connected with one end of a wedge block lifting rod (8), the wedge block lifting rod (8) is located at the upper part of the caliper body (2), the other end of the wedge block lifting rod (8) is connected with a driving mechanism, and the driving mechanism is connected with the safety gear fixing frame (1);
the rotating shaft (13), the rotating shaft (13) is inserted into the safety gear fixing frame (1) and extends to the outside of the safety gear fixing frame (1);
the safety tongs fixing frame comprises an upper roller assembly and a lower roller assembly, wherein the upper roller assembly is positioned at the upper part of the safety tongs fixing frame (1), and the lower roller assembly is positioned at the lower part of the safety tongs fixing frame (1);
an elevator guide rail (11), the elevator guide rail (11) connected with the upper and lower roller assemblies.
2. The elevator safety gear usable for various travel trails according to claim 1, characterized in that: the driving mechanism comprises an electromagnet core (10), the electromagnet core (10) is connected with the other end of the wedge block lifting rod (8), and the electromagnet core (10) is coated on the wedge block lifting rod (8).
3. The elevator safety gear usable for various travel trails according to claim 2, characterized in that: an electromagnetic coil (9) is arranged outside the electromagnetic core (10), and a tension spring (6) is arranged between the electromagnetic core (10) and the safety gear fixing frame (1).
4. The elevator safety gear usable for various travel trails according to claim 1, characterized in that: the driving mechanism further comprises a hydraulic cylinder (10 '), the hydraulic cylinder (10 ') is located above the safety gear fixing frame (1), and the hydraulic cylinder (10 ') is connected with the safety gear fixing frame (1) through a connecting piece.
5. The elevator safety gear usable for various travel trails according to claim 4, characterized in that: the driving mechanism further comprises a hydraulic pump station (6 '), a plunger (8') and an oil conveying pipe (9 '), the plunger (8') is connected with the other end of the wedge block lifting rod (8), the hydraulic pump station (6 ') is arranged outside the safety gear fixing frame (1), and the hydraulic pump station (6') is connected with the hydraulic cylinder (10 ') through the oil conveying pipe (9').
6. The elevator safety gear usable for various travel trails according to claim 5, characterized in that: the plunger (8 ') is located in the hydraulic cylinder (10'), and the plunger (8 ') is retractable in the hydraulic cylinder (10').
7. Elevator safety gear according to claim 3 or 6, characterized in that: the clamp body (2) is provided with the adjusting spring (12), and the adjusting spring (12) is connected with the clamp body (2) through an adjusting spring fixing screw rod (7).
8. The elevator safety gear usable with a plurality of travel tracks according to claim 7, characterized in that: the upper roller assembly comprises an upper roller (17), an upper roller fixing plate (18) and an upper roller shaft (19), and the upper roller fixing plate (18) is fixedly connected with the safety gear fixing frame (1) and is close to the elevator guide rail (11); the upper roller shaft (19) is connected with the upper roller fixing plate (18) through a connecting piece, the upper roller shaft (19) is located in the upper roller fixing plate (18), the upper roller shaft (19) is connected with the axis of the upper roller (17), and the upper roller (17) is connected with the upper roller fixing plate (18) through the upper roller shaft (19).
9. The elevator safety gear usable with a plurality of travel tracks according to claim 8, characterized in that: the lower roller assembly comprises a lower roller (14), a lower roller fixing plate (15) and a lower roller shaft (16), and the lower roller fixing plate (15) is fixedly connected with the safety gear fixing frame (1) and is close to the elevator guide rail (11); the lower roller shaft (16) is connected with the lower roller fixing plate (15) through a connecting piece, the lower roller (16) is located in the lower roller fixing plate (15), the lower roller shaft (16) is connected with the axis of the lower roller (14), and the lower roller (14) is connected with the lower roller fixing plate (15) through the lower roller shaft (16).
10. The elevator safety gear usable with a plurality of travel tracks according to claim 9, characterized in that: the upper roller (17) and the lower roller (14) are attached to the surface of the elevator guide rail (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011374507.5A CN112520529A (en) | 2020-11-30 | 2020-11-30 | Elevator safety tongs that can be used to multiple orbit |
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| CN202011374507.5A CN112520529A (en) | 2020-11-30 | 2020-11-30 | Elevator safety tongs that can be used to multiple orbit |
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| CN112520529A true CN112520529A (en) | 2021-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275646A (en) * | 2021-12-20 | 2022-04-05 | 伟龙意程智能科技(江苏)有限公司 | Stable elevator safety tongs capable of reducing equipment loss |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101804934A (en) * | 2010-03-30 | 2010-08-18 | 苏州东南电梯（集团）有限公司 | Safety gear |
| CN203865761U (en) * | 2014-06-07 | 2014-10-08 | 苏州歌拉瑞电梯有限公司 | Electromagnetic-control elevator safety tongs |
| CN205739873U (en) * | 2016-06-22 | 2016-11-30 | 朗格尔电梯有限公司 | Intelligent and safe clamps |
| CN106348124A (en) * | 2016-09-21 | 2017-01-25 | 广东德奥电梯科技有限公司广西分公司 | Safety gear system with vibrational hydraulic source |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804934A (en) * | 2010-03-30 | 2010-08-18 | 苏州东南电梯（集团）有限公司 | Safety gear |
| CN203865761U (en) * | 2014-06-07 | 2014-10-08 | 苏州歌拉瑞电梯有限公司 | Electromagnetic-control elevator safety tongs |
| CN205739873U (en) * | 2016-06-22 | 2016-11-30 | 朗格尔电梯有限公司 | Intelligent and safe clamps |
| CN106348124A (en) * | 2016-09-21 | 2017-01-25 | 广东德奥电梯科技有限公司广西分公司 | Safety gear system with vibrational hydraulic source |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275646A (en) * | 2021-12-20 | 2022-04-05 | 伟龙意程智能科技(江苏)有限公司 | Stable elevator safety tongs capable of reducing equipment loss |
| CN114275646B (en) * | 2021-12-20 | 2023-07-18 | 伟龙意程智能科技(江苏)有限公司 | Stable elevator safety tongs capable of reducing equipment loss |
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Application publication date: 20210319 |