CN211254864U

CN211254864U - Linkage mechanism for safety tongs of household elevator

Info

Publication number: CN211254864U
Application number: CN201921976752.6U
Authority: CN
Inventors: 姜永国; 王国凯
Original assignee: Shanghai Qinhe Industrial Co ltd
Current assignee: Shanghai Qinhe Industrial Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-08-14
Anticipated expiration: 2029-11-15

Abstract

The utility model belongs to the technical field of elevators, in particular to a safety gear linkage mechanism of a household elevator, which comprises a fixed plate, wherein the back of the fixed plate is fixedly connected with a mounting plate, a positioning hole is arranged on the mounting plate, a groove is arranged in the fixed plate, and a threaded column is arranged in the groove; the utility model discloses, can drive the second pivot and rotate under the drive of motor through setting up turbine and worm, the cooperation of turbine worm has the effect of speed reduction simultaneously, prevent that motor braking from producing a large amount of heats at the excessive speed and making motor self damage, it can be according to the motion of the elasticity control baffle of spring and slide bar to set up spring and baffle, it is at the screw thread post to set up the braked wheel, a screw thread section of thick bamboo, work through the motor under the cooperation of follow driving wheel and action wheel sends the braked wheel out the recess outside, the friction of rethread braked wheel and outside wall body is brakied, holistic safety braking through the mutually supporting messenger between each structure is more stable.

Description

Linkage mechanism for safety tongs of household elevator

Technical Field

The utility model belongs to the technical field of the elevator, concretely relates to home use elevator safety tongs link gear.

Background

In the prior art, a household elevator is widely applied to multi-storey houses, the conventional household elevator comprises a hoistway with a guide rail arranged therein, a lift car lifting along the guide rail, a host driving the lift car to move and a safety gear structure preventing the lift car from falling, the safety gear structure comprises a steel wire rope linked with the elevator, a speed limiter detecting the speed of the steel wire rope and a safety gear assembly mounted on the lift car, when the lift car falls down due to a traction rope, the speed limiter controls the safety gear assembly to act by sensing the steel wire rope at an overspeed, and the function of preventing the lift car from falling is achieved, but the structure has the following defects: make the well size less because of the space is limited in the private house, when installing wire rope, need be equipped with the fixed pulley that supports wire rope respectively at well top and bottom, and need reserve the vertical passageway that supplies wire rope to lay in the well, make well space utilization efficiency lower, and then lead to the car cross-sectional area less, in addition, the car takes place to trigger the overspeed governor through the wire rope of linkage when falling, the safety tongs subassembly is triggered to rethread overspeed governor, trigger step is too much, both the structure is complicated, still lead to the condition emergence that the safety tongs subassembly was not in time triggered because of a certain link makes mistakes easily, there is great potential safety hazard, consequently, improve current mechanism.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a home use elevator safety tongs link gear has the wind speed when utilizing the whereabouts and carries out trigger switch, simple structure and the stable characteristics of braking.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a home use elevator safety tongs link gear, includes the fixed plate, the back fixedly connected with mounting panel of fixed plate, the locating hole has been seted up on the mounting panel, the recess has been seted up in the fixed plate, be provided with the screw thread post in the recess, the one end fixedly connected with of screw thread post is from the driving wheel, the surperficial threaded connection of screw thread post has a screw thread section of thick bamboo, fixedly connected with braked wheel on the screw thread section of thick bamboo, it has the second bearing to inlay in the recess, wear to be equipped with the second pivot in the second bearing, the fixed surface of second pivot is connected.

Preferably, a cavity is formed in the fixing plate, a motor is fixedly connected in the cavity, a worm is fixedly connected to an output shaft of the motor, a worm wheel is connected to the surface of the worm in a threaded manner, and the worm wheel is fixedly connected with the second rotating shaft.

Preferably, the inner wall of the chamber is fixedly connected with a first bearing, a first rotating shaft penetrates through the first bearing, and the lower end of the first rotating shaft is fixedly connected with the worm.

Preferably, a sliding sleeve is embedded in the fixed plate, a sliding rod is connected in the sliding sleeve in a sliding mode, a spring is fixedly connected to the bottom end of the fixed plate, a baffle is fixedly connected to the bottom end of the spring, and the baffle is fixedly connected with the sliding rod.

Preferably, a pressure-sensitive switch is arranged in the fixing plate and located above the sliding rod, a sliding groove is formed in the groove, a sliding block is connected in the sliding groove in a sliding mode, and the sliding block is fixedly connected with the threaded cylinder.

Preferably, the brake wheel comprises a wheel body, a torsion spring and a fixed shaft, the fixed shaft is fixedly connected with the threaded cylinder, the surface of the fixed shaft is fixedly connected with the torsion spring, the other end of the torsion spring is fixedly connected with the wheel body, and the wheel body is in lap joint with the fixed plate.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, can drive the second pivot and rotate under the drive of motor through setting up turbine and worm, the cooperation of turbine worm has the effect of speed reduction simultaneously, it makes motor self damage to prevent that motor braking from producing a large amount of heats too fast, it can be according to the motion of the elasticity control baffle of spring and slide bar to set up spring and baffle, it carries out the circular telegram through the slide bar extrusion to set up pressure sensitive switch, and then make the motor work, it is at the screw thread post to set up the braked wheel, a screw thread section of thick bamboo, the work through the motor under the cooperation of follow driving wheel and action wheel sends out the recess outside with the braked wheel, the friction of rethread braked wheel and outside wall body is brakied, holistic safety braking that mutually supports through between each structure messenger is more.

Drawings

The accompanying drawings 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 and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic structural view of the present invention from the side;

FIG. 3 is an enlarged schematic view of the structure at A of the present invention;

fig. 4 is a schematic top view of the brake wheel of the present invention;

in the figure: 1. a fixing plate; 2. a groove; 3. mounting a plate; 4. positioning holes; 5. a brake wheel; 51. a wheel body; 52. a torsion spring; 53. a fixed shaft; 6. a threaded barrel; 7. a threaded post; 8. a baffle plate; 9. a slide bar; 10. a spring; 11. a driven wheel; 12. a driving wheel; 13. a second rotating shaft; 14. a second bearing; 15. a chamber; 16. a motor; 17. a worm; 18. a turbine; 19. a first rotating shaft; 20. a first bearing; 21. a pressure sensitive switch; 22. a sliding sleeve; 23. a chute; 24. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: a safety gear linkage mechanism of a home elevator comprises a fixed plate 1, a mounting plate 3 is fixedly connected with the rear of the fixed plate 1, the mounting plate 3 is provided with a positioning hole 4, the fixing plate 1 is internally provided with a groove 2, the groove 2 is internally provided with a threaded column 7, one end of the threaded column 7 is fixedly connected with a driven wheel 11, the surface of the threaded column 7 is in threaded connection with a threaded cylinder 6, the thread cylinder 6 is fixedly connected with a brake wheel 5, the brake wheel 5 is arranged to send the brake wheel 5 out of the groove 2 through the work of the motor 16 under the matching of the thread column 7, the thread cylinder 6, the driven wheel 11 and the driving wheel 12, then the friction between the wheel body 51 and the external wall body is utilized to brake, a second bearing 14 is embedded in the groove 2, a second rotating shaft 13 penetrates through the second bearing 14, and a driving wheel 12 is fixedly connected to the surface of the second rotating shaft 13.

Specifically, a cavity 15 is formed in the fixing plate 1, a motor 16 is fixedly connected in the cavity 15, a worm 17 is fixedly connected to an output shaft of the motor 16, the worm 18 and the worm 17 are arranged to drive the second rotating shaft 13 to rotate under the driving of the motor 16, meanwhile, the worm 17 and the worm 18 are matched to achieve the speed reducing effect, the motor 16 is prevented from being braked too fast to generate a large amount of heat to damage the motor 16, the worm 17 is connected with the worm 18 through threads on the surface of the worm, and the worm 18 is fixedly connected with the second rotating shaft 13.

Specifically, the inner wall of the chamber 15 is fixedly connected with a first bearing 20, a first rotating shaft 19 penetrates through the first bearing 20, and the lower end of the first rotating shaft 19 is fixedly connected with the worm 17.

Specifically, it has sliding sleeve 22 to inlay in fixed plate 1, sliding connection has slide bar 9 in the sliding sleeve 22, the bottom fixedly connected with spring 10 of fixed plate 1 sets up spring 10 and baffle 8 and can control the motion of baffle 8 and slide bar 9 according to spring 10's elasticity, the bottom fixedly connected with baffle 8 of spring 10, baffle 8 and slide bar 9 fixed connection.

Specifically, be provided with pressure sensitive switch 21 in fixed plate 1, and pressure sensitive switch 21 is located the top of slide bar 9, sets up pressure sensitive switch 21 and carries out the circular telegram through the extrusion of slide bar 9, and then makes motor 16 carry out work, it has spout 23 to open in the recess 2, sliding connection has slider 24 in the spout 23, slider 24 and threaded cylinder 6 fixed connection.

Specifically, the brake wheel 5 comprises a wheel body 51, a torsion spring 52 and a fixed shaft 53, the fixed shaft 53 is fixedly connected with the thread cylinder 6, the surface of the fixed shaft 53 is fixedly connected with the torsion spring 52, the other end of the torsion spring 52 is fixedly connected with the wheel body 51, and the wheel body 51 is lapped with the fixed plate 1.

The utility model discloses a theory of operation and use flow: the utility model discloses, during the use, the user fixes the integrated device on the elevator through locating hole 4 on mounting panel 3, simultaneously the user uses spring 10 corresponding to elasticity according to the wind speed that descends when the elevator weightlessness falls, when the elevator breaks down weightlessness and falls, because the speed of whereabouts is too fast and the wind speed promotes baffle 8, baffle 8 drives slide bar 9 upward movement, extrude pressure sensitive switch 21 through slide bar 9 upper end and make motor 16 electrified and carry out work, motor 16 work will drive worm 17 to rotate, worm 17 rotates and drives second pivot 13 through turbine 18 and rotate, screw post 7 that makes under the cooperation of action wheel 12 and driven wheel 11 rotates, under the cooperation of screw post 7 and screw cylinder 6 uses brake wheel 5 from recess 2 propelling movement to the outside of fixed plate 1, thereby produce the friction between wheel body 51 and the outside wall, and then the brake wheel 5 stops rotating after the torsion spring 52 in the brake wheel 5 reaches a certain rotation, meanwhile, the friction force generated by the wheel body 51 and the external wall surface is used for braking the elevator, the pressure-sensitive switch 21 is indirectly opened and closed according to the external wind speed, the falling speed of the elevator is controlled until the elevator stops descending, after the elevator stops, the external wind speed does not block, the spring 10 drives the baffle plate 8 and the sliding rod 9 to be separated from the pressure-sensitive switch 21 by the elastic force to stop the operation of the motor 16, and meanwhile, the elevator stops under the action of the brake wheel 5, the elevator waits for the external rescue and then completes the safe braking of the elevator.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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

1. The utility model provides a home use elevator safety tongs link gear, includes fixed plate (1), its characterized in that: the rear fixedly connected with mounting panel (3) of fixed plate (1), locating hole (4) have been seted up on mounting panel (3), recess (2) have been seted up in fixed plate (1), be provided with screw thread post (7) in recess (2), the one end fixedly connected with of screw thread post (7) is from driving wheel (11), the surperficial threaded connection of screw thread post (7) has a screw thread section of thick bamboo (6), fixedly connected with braked wheel (5) are gone up in screw thread section of thick bamboo (6), it has second bearing (14) to inlay in recess (2), wear to be equipped with second pivot (13) in second bearing (14), the fixed surface of second pivot (13) is connected with action wheel (12).

2. A home elevator safety gear linkage as claimed in claim 1, wherein: a cavity (15) is formed in the fixing plate (1), a motor (16) is fixedly connected in the cavity (15), a worm (17) is fixedly connected to an output shaft of the motor (16), a worm wheel (18) is in threaded connection with the surface of the worm (17), and the worm wheel (18) is fixedly connected with the second rotating shaft (13).

3. A home elevator safety gear linkage as claimed in claim 2, wherein: the inner wall of the cavity (15) is fixedly connected with a first bearing (20), a first rotating shaft (19) penetrates through the first bearing (20), and the lower end of the first rotating shaft (19) is fixedly connected with the worm (17).

4. A home elevator safety gear linkage as claimed in claim 1, wherein: the novel fixing device is characterized in that a sliding sleeve (22) is embedded in the fixing plate (1), a sliding rod (9) is connected in the sliding sleeve (22), a spring (10) is fixedly connected to the bottom end of the fixing plate (1), a baffle (8) is fixedly connected to the bottom end of the spring (10), and the baffle (8) is fixedly connected with the sliding rod (9).

5. A home elevator safety gear linkage as claimed in claim 1, wherein: be provided with pressure sensitive switch (21) in fixed plate (1), and pressure sensitive switch (21) are located the top of slide bar (9), spout (23) have been seted up in recess (2), sliding connection has slider (24) in spout (23), slider (24) and screw thread section of thick bamboo (6) fixed connection.

6. A home elevator safety gear linkage as claimed in claim 1, wherein: the brake wheel (5) comprises a wheel body (51), a torsion spring (52) and a fixed shaft (53), the fixed shaft (53) is fixedly connected with the thread cylinder (6), the surface of the fixed shaft (53) is fixedly connected with the torsion spring (52), the other end of the torsion spring (52) is fixedly connected with the wheel body (51), and the wheel body (51) is overlapped with the fixed plate (1).