CN214217829U

CN214217829U - Elevator maintenance safety device

Info

Publication number: CN214217829U
Application number: CN202120188004.2U
Authority: CN
Inventors: 陶新荣
Original assignee: Beijing Huixin United Elevator Engineering Co ltd
Current assignee: Beijing Huixin United Elevator Engineering Co ltd
Priority date: 2021-01-23
Filing date: 2021-01-23
Publication date: 2021-09-17
Anticipated expiration: 2031-01-23

Abstract

The utility model relates to an elevator maintenance safety device, it includes the elevator well, all be provided with supporting beam on the relative both sides wall of elevator well, it has protective bracket to articulate on the supporting beam, protective bracket can rotate to parallel or the vertical position with the elevator well around self and supporting beam's pin joint, be provided with the electric shock switch that is used for controlling the electric circuit switching of elevator on supporting beam's the lateral wall, protective bracket can extrude when being located the vertical state with the elevator well and trigger electric shock switch, be provided with in the elevator well and be used for stimulateeing protective bracket pivoted pulling mechanism. This application has the effect that takes place the possibility that falls when reducing elevator maintenance.

Description

Elevator maintenance safety device

Technical Field

The application relates to the technical field of elevator equipment, in particular to an elevator maintenance safety device.

Background

The lifting elevator as a modern mechanical carrier has become one of the essential devices in daily life, and is widely applied to malls, high-rise office buildings and high-rise residential buildings. However, since the elevator as a vehicle travels between a high floor and the ground, it is dangerous, and thus, it is necessary to periodically perform maintenance, to ensure the normal operation of the elevator, and to ensure the safety of the persons who take the elevator. In the process of elevator maintenance, a car is required to have two maintenance states of fixing and running. Although some elevators are provided with an overhauling and fixing device at present to fix the lift car in the overhauling and maintaining process of the elevator, some elevators are also provided with an overhauling and running safety device, such as a buffer, a limit switch and the like, so that in the overhauling and running process of the elevator, the lift car is prevented from being out of control to cause top rushing or bottom squating accidents, and the safety of operating personnel at the bottom pit and the top of the lift car is protected.

The current chinese utility model patent that the publication number is CN201574011U if authorizing discloses can a no computer lab elevator overhauls platform, including the car top of no computer lab elevator and fix two on the guide rail on no computer lab elevator both sides respectively and stop the plywood, correspond on the car top and stop the plywood and be equipped with and stop the layer round pin and sell the lock, stop and be equipped with the pinhole on the plywood.

With respect to the related art in the above, the inventors consider that: the utility model inserts the floor stopping pin into the pin hole, then fixes the floor stopping pin by using the pin lock, and fixes the car on the floor stopping plate on the guide rail; however, at the moment, an electric circuit of the elevator, such as a safety loop, is open, so that once the elevator is started accidentally, the pin shaft is easy to break, and certain potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

In order to reduce the possibility that the elevator falls when maintaining, this application provides an elevator maintenance safety device.

The application provides a lift maintenance safety device adopts following technical scheme:

the utility model provides an elevator maintenance safety device, includes the elevator well, all be provided with the supporting beam on the relative both sides wall of elevator well, it has protective bracket to articulate on the supporting beam, protective bracket can rotate to parallel or the vertical position with the elevator well around self and supporting beam's pin joint, be provided with the electric shock switch that is used for controlling the electric circuit switching of elevator on supporting beam's the lateral wall, protective bracket can extrude when being located the vertical state with the elevator well and trigger electric shock switch, be provided with in the elevator well and be used for stimulateeing protective bracket pivoted pulling mechanism.

Through adopting above-mentioned technical scheme, when carrying out maintenance to the elevator, accessible pulling mechanism drives the protective bracket and rotates to the horizontality around self and supporting beam's pin joint, thereby mutually support between two protective bracket is used for sealing the elevator well and forms the protection protective screen that is used for preventing the elevator from falling, rotate to the horizontality at the protective bracket simultaneously, can the butt on the electric shock switch, the electric shock switch can break off the safety circuit of the main control system of elevator this moment, avoid at the maintenance in-process, the car takes place the possibility of falling because of unexpected start-up, thereby safety protection performance when increasing the elevator and overhauing.

Preferably, pulling mechanism is including setting up two parallel arrangement wire rope that deviate from the supporting beam tip at the protective cradle, inlay on the elevator well lateral wall and be equipped with the mount pad, the mount pad is located the upside of supporting beam, just it is connected with the turning wheel to rotate on the mount pad, wire rope passes the lateral wall of elevator well and walks around the directive wheel, wire rope passes the tip of elevator well and is provided with the rolling subassembly that is used for rolling wire rope, the rolling subassembly sets up on the lateral wall that the elevator well deviates from the supporting beam.

Through adopting above-mentioned technical scheme, when wire rope pulling protective bracket rotated, staff's accessible rolling subassembly was with the wire rope rolling, and wire rope can pull protective bracket's tip upward movement through the rotating wheel, and then drives protective bracket and rotate to with elevator shaft parallel position, realizes protective bracket's rolling, and then does not influence the normal use of elevator. When the elevator is overhauled, only the direction operation is needed, the steel wire rope is released through the winding component, and the protective support can be rotated to the state vertical to the elevator shaft.

Preferably, the winding assembly comprises a winding roller for winding the steel wire rope, one end of the steel wire rope is fixed on the winding roller, one end of the winding roller is coaxially and fixedly connected with a rotating shaft, the end part of the rotating shaft, which is far away from the winding roller, is fixedly connected with a driven bevel gear, the driven bevel gear is meshed with a driving bevel gear, and a driving motor for driving the driving bevel gear to rotate is arranged on the side wall of the elevator hoistway.

Through adopting above-mentioned technical scheme, driving motor's rotation can drive the rotation of drive bevel gear, and drive bevel gear can drive driven bevel gear and rotate, and then drive the axis of rotation and rotate, and the rotation of axis of rotation can drive the wind-up roll and rotate, through driving motor's corotation and reversal, and then realizes wire rope's rolling and release.

Preferably, two driven bevel gears are engaged on the same drive bevel gear.

By adopting the technical scheme, the installation quantity of the driving motors can be reduced, so that the energy consumption and the safety difficulty are reduced, and meanwhile, certain potential safety hazards can be reduced.

Preferably, the opposite two side walls of the protection support are respectively hinged with a first connecting rod, one end, deviating from the protection support, of each first connecting rod is hinged with a second connecting rod, one end, deviating from the first connecting rod, of each second connecting rod is hinged to the side wall of the elevator shaft, and when the protection support and the elevator shaft are in a vertical state, the first connecting rods and the second connecting rods are in a limit stretching state.

Through adopting above-mentioned technical scheme, mutually supporting of head rod and second connecting rod can carry out stable support to the protective bracket when the protective bracket expandes to further strengthen the proof strength of protective bracket, strengthen protective bracket's security performance. Simultaneously the mutual articulated still can be located and when elevator well is located the vertical state, accomodate the avris at the protective bracket at protective bracket in protective bracket's avris to do not influence protective bracket's normal accomodating.

Preferably, two when the protective bracket all was in the vertical state with the motor well, two the mutual butt in both ends of protective bracket, two the protective bracket is provided with the fixed latch mechanism of tip interconnect between the two.

Through adopting above-mentioned technical scheme, the setting of clamping mechanism can make two protective bracket form a stable whole for two protective bracket can provide better protection.

Preferably, the clamping mechanism is including setting up one of them joint pole on the protective bracket, another set up the jack that can supply the joint pole to penetrate on the lateral wall of protective bracket, be provided with the joint pole install on the protective bracket and be used for the top to hold the joint pole orientation the gliding power component of jack.

Through adopting above-mentioned technical scheme, when the protective bracket of two fixed extensions, accessible power component drives the joint pole and slides and finally slide in the jack towards the direction of jack, and the joint pole is mutually supported with the jack to with the stable joint of two protective bracket together.

Preferably, the power assembly comprises a screw rod coaxially arranged with the clamping rod, a threaded hole for inserting the screw rod is coaxially formed in the clamping rod, and the end part of the screw rod, which deviates from the clamping rod, is provided with a power motor for driving the screw rod to rotate.

Through adopting above-mentioned technical scheme, power motor's rotation can drive the screw rod and rotate, and the rotation of screw rod can be with joint pole roll-off screw rod, and then drives the direction removal of joint pole towards the jack and insert in the jack, and it is fixed to realize the joint between two protective bracket. The clamping and the separation of the clamping rod and the jack are realized through the positive rotation and the reverse rotation of the power motor.

Preferably, the clamping rod and the jack are arranged in a polygonal shape.

Through adopting above-mentioned technical scheme, joint pole and jack that the polygon set up can reduce the joint pole and follow the synchronous pivoted possibility of screw rod when the screw rod rotates, and then make the joint pole can slide along the length direction of drive screw rod under the drive of screw rod.

Preferably, the clamping rod is provided with the anticreep piece towards the tip of screw rod, the clamping rod passes the lateral wall of protective bracket and slides with the lateral wall of protective bracket and is connected.

Through adopting above-mentioned technical scheme, the anticreep piece can reduce the possibility of joint pole slippage protective bracket for the joint pole is more stable along screw rod length direction's slip.

To sum up, the application comprises the following beneficial technical effects:

1. when the elevator is maintained, the protective supports can be driven to rotate to a horizontal state around the hinged point of the protective supports and the supporting cross beam through the pulling mechanism, the two protective supports are matched with each other to seal an elevator shaft, so that a protective barrier for preventing the elevator from falling is formed, meanwhile, when the protective supports rotate to the horizontal state, the protective supports can be abutted against the electric shock switch, the electric shock switch can break a safety loop of a main control system of the elevator, the possibility that the elevator car falls due to accidental starting in the maintenance process is avoided, and therefore the safety protection performance of the elevator during maintenance is improved;

2. the clamping mechanism can enable the two protective supports to form a stable whole, so that the two protective supports can provide better protection.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present application.

Fig. 2 is a schematic diagram showing the matching relationship between the supporting beam and the contact switch.

Fig. 3 is a side view for showing the fitting relationship between the mounting seat and the mounting hole.

Fig. 4 is a partial sectional view of the latch mechanism.

In the figure, 1, an elevator shaft; 11. mounting holes; 12. mounting a rod; 2. a support beam; 21. an electric shock switch; 3. a protective bracket; 31. a long rod; 32. a cross bar; 33. a first connecting rod; 34. a second connecting rod; 4. a clamping mechanism; 41. a clamping and connecting rod; 411. an anti-drop block; 412. a threaded hole; 42. a jack; 43. a power assembly; 431. a screw; 432. a power motor; 5. a power mechanism; 51. a wire rope; 52. hanging a ring; 53. a mounting seat; 54. a rotating wheel; 55. a winding component; 551. a wind-up roll; 552. a rotating shaft; 553. mounting a plate; 554. an ear plate; 555. a driven bevel gear; 556. a drive bevel gear; 557. the motor is driven.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1, a safety device for elevator maintenance is disclosed for the embodiment of the present application, which includes an elevator shaft 1, wherein two opposite side walls of the elevator shaft 1 are fixedly provided with supporting beams 2 through pre-embedded bolts (not shown in the figure), the supporting beams 2 are arranged in parallel with a horizontal plane, the two supporting beams 2 are positioned on the same horizontal plane, the supporting beams 2 are provided with protective supports 3, one ends of the protective supports 3 are hinged with the side walls of the elevator shaft 1, and the protective supports 3 are integrally rectangular frames formed by mutually fixedly connecting two long rods 31 and six cross rods 32; the protective supports 3 can rotate around the hinge points of the protective supports and the supporting cross beam 2 to the positions parallel to or perpendicular to the elevator shaft 1, when the two protective supports 3 are unfolded, the end parts of the two protective supports 3 are attached to each other, so that the two protective supports 3 can seal the elevator shaft 1, a protective barrier for preventing the elevator from falling is formed, and the supporting cross beam 2 can support the lower sides of the protective supports 3, so that the bearing strength of the protective supports 3 is improved; meanwhile, in order to further enhance the supporting strength between the shields, a clamping mechanism 4 is arranged between the end parts of the two protective supports 3, and the end parts of the two protective supports are mutually connected and fixed.

Referring to fig. 2, install the electric shock switch 21 that is used for controlling the electric circuit switching of elevator on the lateral wall of supporting beam 2, can extrude when protective bracket 3 is located the vertical condition with elevator well 1 and trigger electric shock switch 21, when protective bracket 3 rotates to the horizontality, can the butt on electric shock switch 21, electric shock switch 21 can break off the safety circuit of the main control system of elevator this moment and fall, avoid in the maintenance process, the car is because of the unexpected possibility that starts the emergence, thereby safety protection performance when increasing the elevator and overhauing.

Referring to fig. 1 and 3, a pulling mechanism for pulling the protective bracket 3 to rotate is arranged in the elevator hoistway 1, the pulling mechanism comprises two parallel steel wire ropes 51 arranged at the end parts of the protective bracket 3 departing from the supporting beam 2, hanging rings 52 are fixedly connected to the side walls of the long rods 31 at the two sides of the protective bracket 3, which are far away from each other, and the hanging rings 52 are fixedly connected to the hanging rings 52 at the end parts of the steel wire ropes 51 at the end parts of the long rods 31 departing from the supporting beam 2; inlay on 1 lateral wall of elevator well and be equipped with two mount pads 53 that are located the same height, mount pad 53 is located supporting beam 2's upside, mounting hole 11 has been seted up on 1 lateral wall of elevator well, mount pad 53 is installed in mounting hole 11, and it is connected with and rotates wheel 54 to rotate on the mount pad 53, wire rope 51 passes the mounting hole 11 of elevator well 1 and bypasses the directive wheel, two wire rope 51's the tip that passes elevator well 1 all is provided with the rolling subassembly 55 that is used for rolling wire rope 51, two rolling subassembly 55 symmetries set up on 1 lateral wall that deviates from supporting beam 2 of elevator well.

Referring to fig. 1 and 3, the winding assembly 55 includes a winding roller 551 for winding the steel wire rope 51, an axis of the winding roller 551 is parallel to a side wall of the elevator hoistway 1 where the winding roller 551 is installed, an axis of the winding roller 551 is parallel to a horizontal plane, one end of the steel wire rope 51 is fixed on the winding roller 551, one end of the winding roller 551 is coaxially and fixedly connected with a rotating shaft 552, an installation plate 553 is vertically and fixedly connected to the side wall of the elevator hoistway 1, an ear plate 554 is fixedly connected to the installation plate 553, the ear plate 554 is perpendicular to the installation plate 553, and the rotating shaft 552 penetrates through the side wall of the ear plate 554 and is rotatably connected with the ear plate 554; the end part of the rotating shaft 552, which is far away from the winding roller 551, is fixedly connected with a driven bevel gear 555, the driven bevel gear 555 is meshed with a driving bevel gear 556, the two driven bevel gears 555 are meshed with the same driving bevel gear 556, a driving motor 557 for driving the driving bevel gear 556 to rotate is fixedly connected to the mounting plate 553, and the output shaft of the driving motor 557 is coaxially and fixedly connected with the driving bevel gear 556. The rotation of driving motor 557 can drive the rotation of drive bevel gear 556, and drive bevel gear 556 can drive two driven bevel gear 555 rotations, and then drives axis of rotation 552 and rotate, and the rotation of axis of rotation 552 can drive wind-up roll 551 and rotate, and through the corotation and the reversal of driving motor 557, and then realize wire rope 51's rolling and release to drive protective bracket 3 and realize the conversion with elevator well 1 perpendicular or parallel state.

Referring to fig. 1, two opposite side walls of two long rods 31 of the protective support 3 are respectively hinged with a first connecting rod 33, one end of the first connecting rod 33 departing from the protective support 3 is hinged with a second connecting rod 34, one end of the second connecting rod 34 departing from the first connecting rod 33 is arranged on the side wall of the elevator shaft 1, the side wall of the elevator shaft 1 is horizontally and fixedly connected with an installation rod 12, the installation rod 12 is parallel to the supporting cross beam 2 and is positioned right above the supporting cross beam 2, and the end part of the second connecting rod 34 is hinged with the end part of the installation rod 12. When the protective bracket 3 is in a vertical state with the elevator shaft 1, the first connecting rod 33 and the second connecting rod 34 are in an extreme tension state. When the first connecting rod 33 rotates relative to the second connecting rod 34, there is no interference between the two. Mutually supporting of first connecting rod 33 and second connecting rod 34 can be when protective bracket 3 expandes, can carry out stable support to protective bracket 3 to further strengthen protective bracket 3's proof strength, strengthen protective bracket 3's security performance.

Referring to fig. 1 and 4, the clamping mechanism 4 includes a clamping rod 41 disposed on one of the protection brackets 3, the clamping rod 41 is located in the middle of a cross rod 32 at the end of the protection bracket 3, the clamping rod 41 is disposed perpendicular to the cross rod 32, the clamping rod 41 is a rectangular long rod 31, the clamping rod 41 penetrates through the side wall of the cross rod 32 and is slidably connected with the cross rod 32, an insertion hole 42 through which the clamping rod 41 can penetrate is formed in the side wall of the cross rod 32 at the end of the other protection bracket 3, the insertion hole 42 is a rectangular long hole, and when the two protection brackets 3 are abutted against each other, the insertion hole 42 is disposed opposite to the clamping rod 41; the end of the clamping rod 41 departing from the other protective bracket 3 is fixedly connected with an anti-falling block 411, and the size of the anti-falling block 411 is satisfied that the anti-falling block cannot penetrate through the side wall of the cross rod 32; the clamping rod 41 is coaxially provided with a threaded hole 412 along the axial direction thereof, and a power assembly 43 for supporting the clamping rod 41 to slide towards the insertion hole 42 is arranged in the threaded hole 412. The power assembly 43 comprises a screw rod 431 coaxially arranged with the clamping rod 41, and the screw rod 431 is inserted into the threaded hole 412 and is in threaded connection with the threaded hole 412; the end part of the screw rod 431 extending into the threaded hole 412 is flush with the side wall of the cross rod 32 facing the other protective bracket 3 between the shields, the other end of the screw rod 431 is provided with a power motor 432 for driving the screw rod 431 to rotate, and the power motor 432 is fixedly connected to the side wall of the other adjacent cross rod 32 of the same protective bracket 3. The rotation of the power motor 432 drives the screw rod 431 to rotate, the rotation of the screw rod 431 drives the clamping rod 41 to slide out of the screw rod 431, and further drives the clamping rod 41 to move towards the direction of the jack 42 and to be inserted into the jack 42, so that clamping fixation between the two protection brackets 3 is realized. The clamping connection and the separation of the clamping connection rod 41 and the jack 42 are realized through the forward rotation and the reverse rotation of the power motor 432.

The implementation principle of the elevator maintenance safety device in the embodiment of the application is as follows: when carrying out maintenance to the elevator, accessible pulling mechanism drives protective bracket 3 and rotates to the horizontality around self and the pin joint of supporting beam 2, thereby mutually supporting between two protective bracket 3 is used for sealing elevator well 1 and forms the protection protective screen that is used for preventing the elevator from falling, when protective bracket 3 rotates to the horizontality simultaneously, can the butt on electric shock switch 21, electric shock switch 21 can break off the safety circuit of the main control system of elevator this moment, avoid at the maintenance in-process, the car takes place the possibility of falling because of accidental start, thereby safety protection performance when increasing the elevator and overhauing. When two protective bracket 3 and motor well all are in the vertical state, the mutual butt in both ends of two protective bracket 3 to drive joint pole 41 through power component 43 and slide and finally slide in jack 42 towards the direction of jack 42, joint pole 41 and jack 42 mutually support, thereby with two stable joint of protective bracket 3 together, thereby make two protective bracket 3 form a stable whole, reinforcing barrier propterty.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An elevator maintenance safety device, comprising an elevator hoistway (1), characterized in that: all be provided with supporting beam (2) on the relative both sides wall of elevator well (1), it has protective bracket (3) to articulate on supporting beam (2), protective bracket (3) can rotate to being parallel with elevator well (1) or vertical position around the pin joint of self and supporting beam (2), be provided with electric shock switch (21) that are used for controlling the electric circuit switching of elevator on the lateral wall of supporting beam (2), can extrude when protective bracket (3) is located vertical state with elevator well (1) and trigger electric shock switch (21), be provided with in elevator well (1) and be used for pulling protective bracket (3) pivoted pulling mechanism.

2. An elevator service safety device as defined in claim 1, wherein: pulling mechanism deviates from two parallel arrangement wire rope (51) of supporting beam (2) tip including setting up in protective bracket (3), inlay on elevator well (1) lateral wall and be equipped with mount pad (53), mount pad (53) are located the upside of supporting beam (2), just it is connected with in mount pad (53) to rotate and rotates round (54), wire rope (51) pass the lateral wall of elevator well (1) and bypass the directive wheel, wire rope (51) pass the tip of elevator well (1) and are provided with rolling subassembly (55) for rolling wire rope (51), rolling subassembly (55) set up on elevator well (1) deviates from the lateral wall of supporting beam (2).

3. An elevator service safety device as defined in claim 2, wherein: the winding assembly (55) comprises a winding roller (551) for winding a steel wire rope (51), one end of the steel wire rope (51) is fixed on the winding roller (551), one end of the winding roller (551) is coaxially and fixedly connected with a rotating shaft (552), the end part, away from the winding roller (551), of the rotating shaft (552) is fixedly connected with a driven bevel gear (555), the driven bevel gear (555) is meshed with a driving bevel gear (556), and a driving motor (557) for driving the driving bevel gear (556) to rotate is arranged on the side wall of the elevator hoistway (1).

4. An elevator service safety device as defined in claim 3, wherein: two driven bevel gears (555) are meshed on the same driving bevel gear (556).

5. An elevator service safety device as defined in claim 4, wherein: the utility model discloses an elevator well, including protection support (3), the relative both sides wall of protection support (3) respectively articulates there is head rod (33), the one end that head rod (33) deviates from protection support (3) articulates there is second connecting rod (34), the one end that second connecting rod (34) deviate from head rod (33) articulates on the lateral wall of elevator well (1), when protection support (3) and elevator well (1) are in the vertical state, head rod (33) with second connecting rod (34) are in the ultimate tensile state.

6. An elevator service safety device as defined in claim 1, wherein: two when protective bracket (3) and motor well all are in the vertical state, two the mutual butt in both ends of protective bracket (3), two protective bracket (3) are provided with clamping mechanism (4) that tip interconnect is fixed between the two.

7. An elevator service safety device as defined in claim 6, wherein: clamping mechanism (4) is including setting up one of them joint pole (41), another offer jack (42) that can supply joint pole (41) to penetrate on the lateral wall of protective bracket (3), be provided with joint pole (41) install on protective bracket (3) and be used for the top to hold joint pole (41) orientation jack (42) gliding power component (43).

8. An elevator service safety device as defined in claim 7, wherein: the power assembly (43) comprises a screw rod (431) coaxially arranged with the clamping rod (41), a threaded hole (412) into which the screw rod (431) can be inserted is coaxially formed in the clamping rod (41), and a power motor (432) used for driving the screw rod (431) to rotate is arranged at the end, away from the clamping rod (41), of the screw rod (431).

9. An elevator service safety device as defined in claim 8, wherein: the clamping rod (41) and the insertion hole (42) are arranged in a polygonal shape.

10. An elevator service safety device as defined in claim 9, wherein: the end part of the clamping rod (41) facing the screw rod (431) is provided with an anti-falling block (411), and the clamping rod (41) penetrates through the side wall of the protective support (3) and is connected with the side wall of the protective support (3) in a sliding mode.