CN214003729U

CN214003729U - Elevator instantaneous safety gear testing device

Info

Publication number: CN214003729U
Application number: CN202023105821.1U
Authority: CN
Inventors: 刘爽
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-08-20
Anticipated expiration: 2030-12-21

Abstract

The utility model provides an instantaneous formula safety tongs test device of elevator. This elevator instantaneous safety tongs test device, including test bench, hoist mechanism and speed limit mechanism, the top of test bench one side is provided with the diaphragm, the bottom of test bench inner chamber is provided with the buffer, the bottom of movable pulley is provided with the detacher, speed limit mechanism is located one side at diaphragm top, speed limit mechanism includes overspeed governor, overspeed governor wheel, speed limit hawser, speed limit take-up pulley, pull rod and link mechanism, the bottom of overspeed governor and the top fixed connection of diaphragm, the outside of overspeed governor is passed through the outside transmission of speed limit hawser and speed limit take-up pulley and is connected, the outside of speed limit hawser is the transmission respectively and is connected with pull rod and link mechanism. The utility model provides a pair of elevator instantaneous safety tongs test device has the distance and the speed of being convenient for to the whereabouts of elevator and carries out effectual test and can carry out the advantage protected to some detecting instrument.

Description

Elevator instantaneous safety gear testing device

Technical Field

The utility model relates to an elevator safety field especially relates to an instantaneous formula safety tongs test device of elevator.

Background

The instantaneous safety tongs are important safety devices which can provide effective protection for the safe operation of the elevator, are dragging and forced driving elevators, hydraulic driving elevators and other types of elevators (firefighter elevators, explosion-proof elevators and sundry elevators) with rated speed less than 0.63m/s, can stop the elevator car on the guide rails when the elevator speed exceeds the set limit speed of the elevator speed limiter or a suspension rope is broken and loosened, and even when a suspension system is broken and fails, the instantaneous safety tongs are required to be tested before the elevator is put into use and can be put into use after the standard is met.

At present, when some existing elevator instantaneous safety tongs are used for experiments, due to the fact that effective tests are not convenient to carry out on the falling distance and speed of an elevator, and when displacement and acceleration sensors are used, due to the fact that falling impact force is large, damage to some detection instruments can be caused under the condition that protection is not carried out, test efficiency is reduced, manpower and material resources are wasted, and test requirements at the current stage cannot be met.

Therefore, it is necessary to provide a new elevator instantaneous safety gear testing device to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an elevator instantaneous safety tongs test device which has the distance and the speed of being convenient for to the whereabouts of elevator carry out effectual test and can protect some detecting instrument.

The utility model provides a pair of elevator instantaneous safety tongs test device, include:

the testing device comprises a testing table, a transverse plate and a buffer, wherein the top of one side of the testing table is provided with the transverse plate, and the bottom of an inner cavity of the testing table is provided with the buffer;

the lifting mechanism is positioned inside the test bed and comprises a lifting motor, a lifting cable, a movable pulley and a detacher, the bottom of the lifting motor is fixedly connected with the top of the transverse plate, the outer side of the lifting motor is connected with the lifting cable through belt pulley transmission, the movable pulley is arranged at the bottom of the lifting cable, and the detacher is arranged at the bottom of the movable pulley;

the speed limiting mechanism is located on one side of the top of the transverse plate and comprises a speed limiter, a speed limiter wheel, a speed limiting cable, a speed limiting tension wheel, a pull rod and a connecting rod mechanism, the bottom of the speed limiter is fixedly connected with the top of the transverse plate, the speed limiter wheel is arranged inside the speed limiter, the outer side of the speed limiter is in transmission connection with the outer side of the speed limiting tension wheel through the speed limiting cable, and the outer side of the speed limiting cable is in transmission connection with the pull rod and the connecting rod mechanism respectively.

Preferably, the bottom fixedly connected with guide rail of diaphragm, the bottom of guide rail and the bottom fixed connection of test bench inner chamber, one side of guide rail is provided with bears the frame, the top of bearing the frame is provided with the unhooking device.

Preferably, the bottom of the pull rod is provided with a safety gear, the safety gear is arranged at the bottom of the bearing frame, the bearing frame is in sliding connection with one side of the guide rail through the safety gear, and the link mechanism is arranged at one side of the bearing frame.

Preferably, the test weight is arranged in the bearing frame, the buffer mechanism is arranged in the bearing frame, and the buffer mechanism comprises a buffer box, a bottom box, a first spring, a top plate, a sliding rod and a second spring.

Preferably, the bottom of baffle-box and the bottom fixed connection who bears the frame inner chamber, the bottom fixedly connected with under casing of baffle-box inner chamber, the first spring of bottom fixedly connected with of under casing inner chamber, the top fixedly connected with roof of first spring, the top fixedly connected with slide bar of roof, the top fixedly connected with second spring of under casing, the equal fixedly connected with instrument shelter in top of second spring and slide bar.

Preferably, the inner chamber of instrument case is provided with displacement sensor and acceleration sensor respectively, one side fixedly connected with of instrument case bottom links the board, link the one end fixedly connected with slider that the instrument case was kept away from to the board, the spout that uses with the slider cooperation is seted up to the inner wall of baffle-box.

Preferably, one side of the sliding block is fixedly connected with a third spring, and one end, far away from the sliding block, of the third spring is fixedly connected with the inner wall of the sliding groove.

Compared with the prior art, the utility model provides a pair of elevator instantaneous safety tongs test device has following beneficial effect:

the utility model can conveniently lift and descend the bearing frame through the test bed and the lifting mechanism, and through the arranged speed limiting mechanism, the speed limiting tension wheel arranged in the speed limiting mechanism is matched with the speed limiter wheel for use, so that the speed limiting cable rope can rotate in the vertical direction, when the rotating speed of the speed limiter wheel reaches a set value, the speed limiting cable rope can be clamped, the pull rod and the connecting rod mechanism connected with the speed limiting cable rope can trigger the safety tongs for working, and the speed limiting cable rope is matched with the arranged displacement sensor and the arranged acceleration sensor for use, so that the test can be conveniently carried out, through the matched use of the arranged buffer mechanism and the buffer arranged at the bottom of the test bed, the safety tongs can be protected to the maximum extent, the impact force of the displacement sensor and the acceleration sensor in the instrument box is effectively reduced, the service life is prolonged, the test efficiency is further improved, the problem that when the existing elevator instantaneous safety tongs are used for testing is solved, because the distance and the speed of the whereabouts of elevator of being not convenient for carry out effectual test, and when using displacement and acceleration sensor, because the whereabouts impact force is great, probably lead to some detecting instrument's damage under the circumstances of not protecting, and then lead to the reduction of test efficiency, wasted the problem of manpower and material resources.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of an elevator instantaneous safety gear testing device provided by the present invention;

FIG. 2 is a schematic structural view of the speed limiting mechanism of the present invention;

FIG. 3 is a schematic view of the construction of the loading ledge shown in FIG. 1;

fig. 4 is an enlarged schematic view of the structure at a in fig. 3.

Reference numbers in the figures: 1. a test bed; 2. a lifting mechanism; 21. a hoisting motor; 22. hoisting the cable; 23. a movable pulley; 24. a detacher; 3. a speed limiting mechanism; 31. a speed limiter; 32. a governor wheel; 33. a speed limiting cable; 34. a speed-limiting tension wheel; 35. a pull rod; 36. a link mechanism; 4. a guide rail; 5. a carrier; 6. safety tongs; 7. a buffer; 8. a buffer mechanism; 81. a buffer tank; 82. a bottom box; 83. a first spring; 84. a top plate; 85. a slide bar; 86. a second spring; 9. an instrument box; 10. a displacement sensor; 11. an acceleration sensor; 12. testing heavy objects; 13. connecting plates; 14. a slider; 15. a chute; 16. a third spring; 17. a transverse plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4 in combination, in which fig. 1 is a schematic structural diagram of a preferred embodiment of an elevator instantaneous safety gear testing apparatus provided by the present invention, fig. 2 is a schematic structural diagram of a speed limiting mechanism of the present invention, fig. 3 is a schematic structural diagram of a bearing frame shown in fig. 1, and fig. 4 is an enlarged schematic structural diagram of a point a in fig. 3. An elevator instantaneous safety gear testing device, comprising:

the test bed 1 is characterized in that a transverse plate 17 is arranged at the top of one side of the test bed 1, and a buffer 7 is arranged at the bottom of an inner cavity of the test bed 1;

the lifting mechanism 2 is positioned inside the test bed 1, the lifting mechanism 2 comprises a lifting motor 21, a lifting cable 22, a movable pulley 23 and a detacher 24, the bottom of the lifting motor 21 is fixedly connected with the top of the transverse plate 17, the outer side of the lifting motor 21 is connected with the lifting cable 22 through belt pulley transmission, the movable pulley 23 is arranged at the bottom of the lifting cable 22, and the detacher 24 is arranged at the bottom of the movable pulley 23;

the speed limiting mechanism 3 is located on one side of the top of the transverse plate 17, the speed limiting mechanism 3 comprises a speed limiter 31, a speed limiter wheel 32, a speed limiting cable 33, a speed limiting tension wheel 34, a pull rod 35 and a connecting rod mechanism 36, the bottom of the speed limiter 31 is fixedly connected with the top of the transverse plate 17, the speed limiter wheel 32 is arranged inside the speed limiter 31, the outer side of the speed limiter 31 is in transmission connection with the outer side of the speed limiting tension wheel 34 through the speed limiting cable 33, and the outer side of the speed limiting cable 33 is in transmission connection with the pull rod 35 and the connecting rod mechanism 36 respectively.

In the specific implementation process, as shown in fig. 1, the bottom of the transverse plate 17 is fixedly connected with the guide rail 4, the bottom of the guide rail 4 is fixedly connected with the bottom of the inner cavity of the test bed 1, one side of the guide rail 4 is provided with the bearing frame 5, and the top of the bearing frame 5 is provided with the unhooking device 24.

Referring to fig. 2, the safety gear 6 is provided at the bottom of the pull rod 35, the safety gear 6 is provided at the bottom of the carriage 5, the carriage 5 is slidably coupled to one side of the rail 4 through the safety gear 6, and the link mechanism 36 is provided at one side of the carriage 5.

It should be noted that: through setting up guide rail 4 and detacher 24, can be convenient for when detacher 24 is unhooked, bear frame 5 and can descend along guide rail 4, and then can be convenient for test, and through setting up safety tongs 6 and link mechanism 36, can be convenient for overspeed governor 31 triggers safety tongs 6 through link mechanism 36 and carries out work.

Referring to fig. 3, the test weight 12 is provided inside the carrier 5, the buffer mechanism 8 is provided inside the carrier 5, and the buffer mechanism 8 includes a buffer case 81, a bottom case 82, a first spring 83, a top plate 84, a slide bar 85, and a second spring 86.

Referring to fig. 3 and 4, the bottom of the buffer box 81 is fixedly connected with the bottom of the cavity of the bearing frame 5, the bottom of the cavity of the buffer box 81 is fixedly connected with the bottom box 82, the bottom of the cavity of the bottom box 82 is fixedly connected with the first spring 83, the top of the first spring 83 is fixedly connected with the top plate 84, the top of the top plate 84 is fixedly connected with the slide bar 85, the top of the bottom box 82 is fixedly connected with the second spring 86, and the tops of the second spring 86 and the slide bar 85 are both fixedly connected with the instrument box 9.

It should be noted that: through setting up experimental heavy object 12, can be convenient for simulate the bearing capacity of elevator, can adopt the heavy object of different weight to test, and through setting up buffer gear 8, can make bear frame 5 can't provide certain cushion effect by the action of safety tongs 6 and give instrument box 9 when stopping in the falling test for reduce the impact force to instrument box 9, prevent to cause the damage to instrument box 9, thereby prevent to influence experimental progress, improved efficiency of software testing.

Referring to fig. 3 and 4, the inner cavity of the instrument box 9 is respectively provided with a displacement sensor 10 and an acceleration sensor 11, one side of the bottom of the instrument box 9 is fixedly connected with a connecting plate 13, one end of the connecting plate 13 far away from the instrument box 9 is fixedly connected with a sliding block 14, and the inner wall of the buffer box 81 is provided with a sliding groove 15 matched with the sliding block 14 for use.

Referring to fig. 4, a third spring 16 is fixedly connected to one side of the sliding block 14, and one end of the third spring 16, which is far away from the sliding block 14, is fixedly connected to the inner wall of the sliding slot 15.

It should be noted that: through the inside at instrument box 9 is provided with displacement sensor 10 and acceleration sensor 11, can be convenient for carry out the record to the acceleration and the displacement of elevator, and then can be convenient for carry out the analysis to safety tongs 6's performance through the data of record, and through setting up even board 13, slider 14, spout 15 and third spring 16, can further reduce the impact force to displacement sensor 10 and acceleration sensor 11 in the instrument box 9, effectual displacement sensor 10 and acceleration sensor 11 of having protected, prevent that displacement sensor 10 and acceleration sensor 11 from taking place to damage.

The utility model provides a pair of elevator instantaneous safety tongs test device's theory of operation as follows:

during the test, the bearing frame 5 in the guide rail 4 can be lifted to a preset position through the lifting mechanism 2, the unhooking device 24 is triggered, the bearing frame 5 loses the tensile force of the lifting cable 22, the bearing frame 5 can freely slide on the guide rail 4, when the sliding speed exceeds the set value of the speed limiter 31, the speed limiter 31 acts, a speed limiting tension wheel 34 arranged in the speed limiting mechanism 3 is matched with a speed limiter wheel 32 to enable a speed limiting cable 33 to rotate in the vertical direction, when the rotating speed of the speed limiter wheel 32 reaches the set value, the speed limiting cable 33 can be clamped, a pull rod 35 and a connecting rod mechanism 36 connected with the speed limiting cable 33 can trigger the safety gear 6 to work, the bearing frame 5 can be stopped on the guide rail 4 through the safety gear 6, if the safety gear 6 is not effectively stopped, the bearing frame 5 can impact on a buffer 7 arranged at the bottom of the test bed 1, the acceleration sensor 11 and the displacement sensor 10 can record the whole process, and meanwhile, the buffering mechanism 8 can protect the test instrument to the maximum extent, so that the impact force of the displacement sensor 10 and the acceleration sensor 11 in the instrument box 9 is effectively reduced.

the utility model discloses a test bench 1 and hoist mechanism 2, can be convenient for carry on promotion and descending to bearing frame 5, and through the speed limiting mechanism 3 that sets up, the speed limiting take-up pulley 34 that sets up in the speed limiting mechanism 3 cooperates with overspeed governor wheel 32 and uses and can make speed limiting cable 33 form the gyration in vertical direction, when overspeed governor wheel 32 rotational speed reaches the setting value action, can block speed limiting cable 33, pull rod 35 and link mechanism 36 that speed limiting cable 33 connects, can trigger safety tongs 6 and carry out work, and cooperate with displacement sensor 10 and the acceleration sensor 11 that sets up, can be convenient for test, cooperate with buffer 7 that sets up in the test bench bottom through buffer gear 8 that sets up, can furthest provide the protection to the test instrument, the effectual impact force that reduces displacement sensor 10 and acceleration sensor 11 in the instrument shelter 9, service life is improved, and then improved test efficiency, solved some current elevator instantaneous safety tongs when carrying out the experiment, because be not convenient for carry out effectual test to the distance and the speed of the whereabouts of elevator, and when using displacement and acceleration sensor, because the whereabouts impact force is great, probably lead to the damage of some detecting instrument under the circumstances of not protecting, and then lead to the reduction of test efficiency, wasted the problem of manpower and material resources.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides an elevator instantaneous safety tongs test device which characterized in that includes:

the test bed (1), a transverse plate (17) is arranged at the top of one side of the test bed (1), and a buffer (7) is arranged at the bottom of an inner cavity of the test bed (1);

the lifting mechanism (2) is positioned inside the test bed (1), the lifting mechanism (2) comprises a lifting motor (21), a lifting cable (22), a movable pulley (23) and a detacher (24), the bottom of the lifting motor (21) is fixedly connected with the top of the transverse plate (17), the outer side of the lifting motor (21) is connected with the lifting cable (22) through belt pulley transmission, the movable pulley (23) is arranged at the bottom of the lifting cable (22), and the detacher (24) is arranged at the bottom of the movable pulley (23);

speed limit mechanism (3), speed limit mechanism (3) are located one side at diaphragm (17) top, speed limit mechanism (3) include overspeed governor (31), overspeed governor wheel (32), speed limit hawser (33), speed limit take-up pulley (34), pull rod (35) and link mechanism (36), the bottom of overspeed governor (31) and the top fixed connection of diaphragm (17), the inside of overspeed governor (31) is provided with overspeed governor wheel (32), the outside of overspeed governor (31) is passed through speed limit hawser (33) and is connected with the outside transmission of speed limit take-up pulley (34), the outside of speed limit hawser (33) is the transmission respectively and is connected with pull rod (35) and link mechanism (36).

2. The elevator instantaneous safety gear test device according to claim 1, characterized in that a guide rail (4) is fixedly connected to the bottom of the transverse plate (17), the bottom of the guide rail (4) is fixedly connected to the bottom of the inner cavity of the test bed (1), a bearing frame (5) is arranged on one side of the guide rail (4), and a unhooking device (24) is arranged on the top of the bearing frame (5).

3. An elevator instantaneous safety gear test device according to claim 2, characterized in that the safety gear (6) is arranged at the bottom of the pull rod (35), the safety gear (6) is arranged at the bottom of the bearing frame (5), the bearing frame (5) is connected with one side of the guide rail (4) in a sliding mode through the safety gear (6), and the link mechanism (36) is arranged at one side of the bearing frame (5).

4. An elevator instantaneous safety gear test device according to claim 2, characterized in that the inside of the carrier (5) is provided with a test weight (12), the inside of the carrier (5) is provided with a buffer mechanism (8), and the buffer mechanism (8) comprises a buffer box (81), a bottom box (82), a first spring (83), a top plate (84), a slide bar (85) and a second spring (86).

5. The elevator instantaneous safety gear testing device according to claim 4, characterized in that the bottom of the buffer box (81) is fixedly connected with the bottom of the inner cavity of the bearing frame (5), the bottom of the inner cavity of the buffer box (81) is fixedly connected with a bottom box (82), the bottom of the inner cavity of the bottom box (82) is fixedly connected with a first spring (83), the top of the first spring (83) is fixedly connected with a top plate (84), the top of the top plate (84) is fixedly connected with a sliding rod (85), the top of the bottom box (82) is fixedly connected with a second spring (86), and the tops of the second spring (86) and the sliding rod (85) are fixedly connected with an instrument box (9).

6. The elevator instantaneous safety gear testing device according to claim 5, characterized in that an inner cavity of the instrument box (9) is respectively provided with a displacement sensor (10) and an acceleration sensor (11), one side of the bottom of the instrument box (9) is fixedly connected with a connecting plate (13), one end of the connecting plate (13) far away from the instrument box (9) is fixedly connected with a sliding block (14), and the inner wall of the buffer box (81) is provided with a sliding groove (15) matched with the sliding block (14) for use.

7. An elevator instantaneous safety gear testing device according to claim 6, characterized in that one side of the sliding block (14) is fixedly connected with a third spring (16), and one end of the third spring (16) far away from the sliding block (14) is fixedly connected with the inner wall of the sliding groove (15).