CN220618033U - Novel electric triggering type elevator safety tongs - Google Patents
Novel electric triggering type elevator safety tongs Download PDFInfo
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- CN220618033U CN220618033U CN202322308687.2U CN202322308687U CN220618033U CN 220618033 U CN220618033 U CN 220618033U CN 202322308687 U CN202322308687 U CN 202322308687U CN 220618033 U CN220618033 U CN 220618033U
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- seat
- swinging plate
- clamp seat
- guide rail
- tongs
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- 230000001960 triggered effect Effects 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a novel electric triggering type elevator safety tongs, which belongs to the field of elevator accessories, and comprises a tongs seat, a swinging plate, a brake wheel and an electromagnet, wherein the tongs seat is provided with a jaw corresponding to a car guide rail; the swinging plate is hinged to one side of the clamp seat, which is far away from the elevator car, and the electromagnet is fixedly arranged at one end of the clamp seat, which corresponds to the swinging plate, and is used for energizing to push the swinging plate to swing; the brake wheel is movably arranged on the swing plate, and is positioned in the jaw and swings along with the swing plate to contact with the car guide rail; the car brake device further comprises an installation seat for supporting the clamp seat, the clamp seat is slidably installed on the installation seat, and the brake wheel is forced to transversely move to be in contact with the car guide rail for braking after being in contact with the car guide rail. The elevator safety tongs can effectively avoid the floating of the elevator car along with the tongs seat, ensure the running stability of the elevator car, effectively reduce the transverse stress of the elevator car guide rail, reduce the selection limit of the elevator car guide rail and facilitate the use.
Description
Technical Field
The utility model relates to the technical field of elevator accessories, in particular to a novel electric triggering type elevator safety tongs.
Background
Most of the existing elevator safety tongs are mechanically triggered, after the elevator overspeed, the speed limiter acts, and the safety tongs are pulled up through the speed limiter steel wire rope, so that the safety tongs are braked. The disadvantage of this approach is that the greater number of speed limiter and pulling elements results in a longer response time of the speed limiter-safety gear system, and the speed limiter may change in speed after prolonged operation, resulting in malfunction or inactivity, affecting the safety of the elevator.
Through investigation, chinese patent with publication number of CN212832237U discloses an electrically triggered safety tongs, which comprises a tongs seat, a swinging plate, a brake wheel and an electromagnet; the clamp seat is provided with a jaw used for clamping on a car guide rail; the swinging plate is hinged to one face of the jaw seat, provided with the jaw, and the electromagnet is fixedly arranged at one end of the jaw seat corresponding to the swinging plate and used for being electrified to push the swinging plate to swing; the brake wheel is movably mounted on the swing plate, is positioned in the jaw, swings along with the swing plate and contacts with the car guide rail. The safety tongs trigger the swinging plate to act through controlling the electromagnet, so that the brake wheel is close to the car guide rail to be contacted with the car guide rail for braking and stopping, the elevator can be rapidly triggered, and the car braking and stopping are realized. However, during braking and restoring braking, the car transversely floats on the car guide rail along with the clamp body, so that the running stability of the car is affected; meanwhile, after the brake wheel is contacted with the car guide rail, the clamp body and the elevator car are forced to integrally move, the car guide rail bears larger transverse stress, and the car guide rail with high strength is required to be matched for use, so that the use is very inconvenient.
Therefore, a novel electrically triggered elevator safety gear is provided to solve the above problems.
Disclosure of Invention
(one) solving the technical problems
The utility model provides a novel electrically-triggered elevator safety tongs, and aims to solve the problems that the prior elevator safety tongs are fixedly arranged on an elevator car, the running stability of the elevator car is easy to influence, the transverse stress of a car guide rail is large, the car guide rail with high strength is required to be selected for cooperation use, and the like.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the novel electrically triggered elevator safety tongs comprises a tongs seat, a swinging plate, a brake wheel and an electromagnet, wherein the tongs seat is provided with a jaw corresponding to a car guide rail; the swinging plate is hinged to one side, far away from the elevator car, of the clamp seat, and the electromagnet is fixedly arranged at one end, corresponding to the swinging plate, of the clamp seat and used for being electrified to push the swinging plate to swing; the brake wheel is movably mounted on the swing plate, is positioned in the jaw, swings along with the swing plate and contacts with the car guide rail.
In order to improve the stability and safety of the running of the elevator car, the elevator safety gear further comprises a mounting seat for supporting the gear seat, wherein the gear seat is slidably mounted on the mounting seat; during braking, after the brake wheel contacts with the car guide rail, the clamp seat is forced to transversely move to contact with the car guide rail for braking, so that the car can be prevented from floating along with the safety clamp, and the stability of the elevator car is ensured; meanwhile, the transverse stress of the car guide rail can be effectively reduced, so that the risk of damage to the car guide rail is reduced, and the running safety of the elevator is improved.
Preferably, a guide groove is formed in the swing plate, and a connecting shaft located in the guide groove is fixedly arranged at one end, away from the clamp seat, of the brake wheel.
Preferably, the pliers seat is fixedly provided with a rotating shaft penetrating through the swinging plate, and the swinging plate is rotationally connected with the rotating shaft.
Preferably, a positioning pin is fixedly arranged on the clamp seat at a position close to the center of the swinging plate, and a long waist hole is formed in the swinging plate at a position corresponding to the positioning pin.
Preferably, a bending part bending towards the clamp seat is arranged at the position, corresponding to the outer side of the clamp seat, of one side, far away from the brake wheel, of the swing plate;
the clamp seat is fixedly provided with a first positioning column penetrating through the bending part, the first positioning column is sleeved with a trigger spring, and two ends of the trigger spring are respectively fixedly connected with one end, far away from the clamp seat, of the first positioning column and the bending part.
Preferably, the two ends of the pliers seat are provided with sliding grooves, the position of the mounting seat corresponding to the sliding grooves is welded with a guide plate, and one end of the guide plate, which is far away from the mounting seat, is positioned in the sliding grooves.
Preferably, the safety tongs further comprise a limiting column fixedly arranged on the mounting seat and corresponding to the outer side position of the tongs seat, and a reset mechanism fixedly arranged on the mounting seat and used for enabling the tongs seat to move close to the limiting column.
Preferably, the reset mechanism comprises a hinge plate fixedly arranged on one side, far away from the limit post, of the mounting seat, a second positioning post penetrating through the hinge plate and fixedly connected with the clamp seat, and a reset spring sleeved on the second positioning post, wherein two ends of the reset spring are fixedly connected with the clamp seat and the hinge plate respectively.
Preferably, contact switches are fixedly arranged on the mounting seat at the outer side positions corresponding to the clamp seat and the outer side positions corresponding to the swinging plates.
(III) beneficial effects
The elevator safety tongs are simple in structure and convenient to use, the tongs seat is slidably arranged on the mounting seat, and when braking and restoring braking are performed, the tongs seat floats on the mounting seat, so that the elevator car is prevented from floating along with the safety tongs, and the safety of the elevator car can be ensured; meanwhile, the stress of the car guide rail can be effectively reduced, and the transverse stress of the car guide rail can be effectively reduced, so that the convenience of the car guide rail selection is ensured.
Drawings
Fig. 1 is a schematic structural view of a novel electrically triggered elevator safety gear;
fig. 2 is an isometric schematic view of a novel electrically triggered elevator safety gear;
fig. 3 is a schematic view of the structure of a novel electrically triggered elevator safety gear in the use state.
In the figure:
1. a mounting base;
11. a guide plate;
2. a clamp seat;
21. a rotating shaft;
22. a positioning pin;
23. a first positioning column;
231. a trigger spring;
24. a chute;
3. a swinging plate;
31. a guide groove;
32. a long waist hole;
33. a bending part;
4. a brake wheel;
41. a connecting shaft;
5. an electromagnet;
6. a limit column;
7. a reset mechanism;
71. a hinge plate;
72. a second positioning column;
73. a return spring;
8. and a contact switch.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
The embodiment provides a novel electrically triggered elevator safety gear, which comprises a gear seat 2, a swinging plate 3, a brake wheel 4 and an electromagnet 5, wherein the gear seat 2 is provided with a jaw corresponding to a car guide rail, as shown in fig. 1, 2 and 3.
The swinging plate 3 is hinged to one surface, far away from the elevator car, of the clamp seat 2, and the electromagnet 5 is fixedly arranged at one end, corresponding to the swinging plate 3, of the clamp seat 2 and used for pushing the swinging plate 3 to swing by electrifying; the pliers seat 2 is fixedly provided with a rotating shaft 21 penetrating through the swinging plate 3, and the swinging plate 3 is rotationally connected with the rotating shaft 21.
The brake wheel 4 is movably arranged on the swinging plate 3, and the brake wheel 4 is positioned in the jaw and swings along with the swinging plate 3 to be contacted with the car guide rail.
The elevator safety gear further comprises a mounting seat 1 for supporting the clamp seat 2, the clamp seat 2 is slidably mounted on the mounting seat 1, and the brake wheel 4 is contacted with the car guide rail to force the clamp seat 2 to move transversely to be contacted with the car guide rail for braking.
When braking, the electromagnet 5 is electrified to push the swinging plate 3 to rotate, so that the swinging plate 3 drives the brake wheel 4 to be close to the car guide rail, after the brake wheel 4 is contacted with the car guide rail, the brake wheel 4 moves to the upper part of the safety tongs under the action of the car guide rail to press the car guide rail, so that the tongs seat 2 moves on the mounting seat 1, one side, far away from the brake wheel 4, of the inner wall of the tongs seat 2 contacts with the car guide rail, and is clamped on the car guide rail under the cooperation of the brake wheel 4, so that the elevator car is braked.
When the elevator safety tongs are braked and braked in a recovering way, the tongs seat 2 moves on the mounting seat 1, so that the movement of the elevator car along with the safety tongs during braking or braking in a recovering way can be effectively avoided, and the stability of the elevator car can be effectively ensured; meanwhile, the transverse stress of the car guide rail can be effectively reduced, and the convenience of the car guide rail selection is ensured.
In order to reduce the damage to the car guide rail during braking, the swinging plate 3 is provided with a guide groove 31, and one end of the brake wheel 4, which is far away from the caliper seat 2, is fixedly provided with a connecting shaft 41 positioned in the guide groove 31; through guide way 31 and connecting axle 41 cooperation for brake wheel 4 can be on swing board 3 activity, and when brake wheel 4 contacted with the car guide rail, under the frictional force effect of car guide rail and brake wheel 4, brake wheel 4 can roll on swing board 3 to the stress that produces in the twinkling of an eye is contacted with the car guide rail to brake wheel 4 is buffered, avoids the stress of instantaneous contact to lead to the car guide rail to damage, and then improves the security that the safety tongs used.
Furthermore, in order to ensure the stability of the operation of the swinging plate 3, a positioning pin 22 is fixedly arranged on the clamp base 2 near the center of the swinging plate 3, and a long waist hole 32 is formed on the swinging plate 3 at a position corresponding to the positioning pin 22; when the electromagnet 5 is electrified to push the swinging plate 3 to move or the electromagnet 5 is deenergized, and the swinging plate 3 is restored to the initial state to move, the positioning pin 22 is matched with the long waist hole 32, so that the swinging plate 3 is parallel to the surface of the clamp seat 2, and the working stability of the swinging plate 3 is ensured.
Furthermore, in order to improve stability of the pliers seat 2, both ends of the pliers seat 2 are provided with sliding grooves 24, a guide plate 11 is welded at a position corresponding to the sliding grooves 24 on the mounting seat 1, and one end of the guide plate 11, which is far away from the mounting seat 1, is positioned in the sliding grooves 24; the clamp seat 2 is fixed on the mounting seat 1 through the cooperation of the guide plate 11 and the sliding groove 24, and meanwhile, the clamp seat 2 can move on the mounting seat 1; at the same time, the movement of the jaw 2 is guided by the guide plate 11 and the chute 24, so that the jaw 2 can move on the mounting seat 1 along the vertical direction of the car guide rail. Wherein, in order to facilitate the installation of the safety tongs, the installation seat 1 and the guide plate 11 are correspondingly provided with installation holes for the passing of the fixing pieces; when the safety gear is installed, the installation seat 1 and the guide plate 11 can be fixed on the elevator car through the fixing piece, so that the safety gear is installed on the elevator car.
Example 2
Unlike in embodiment 1, in order to restore braking and ensure the stability of the running of the elevator car, as shown in fig. 1, 2 and 3, the swing plate 3 has a bending portion 33 bent toward the grip block 2 at a position corresponding to the outer side of the grip block 2 on the side away from the brake wheel 4; the pliers seat 2 is fixedly provided with a first positioning column 23 penetrating through the bending portion 33, the first positioning column 23 is sleeved with a trigger spring 231, and two ends of the trigger spring 231 are respectively fixedly connected with one end, away from the pliers seat 2, of the first positioning column 23 and the bending portion 33.
When the braking is restored, the electromagnet 5 is disconnected, the swinging plate 3 is released after the electromagnet 5 is powered off, and under the action of the elastic force of the trigger spring 231, one end of the swinging plate 3, which is far away from the safety tongs 1, is pulled to rotate away from the car guide rail, so that the braking wheel 4 is separated from the car guide rail, the car guide rail is released, and the braking is restored.
Example 3
Unlike in embodiment 1 and embodiment 2, in order to ensure the stability and safety of the operation of the elevator car, as shown in fig. 1 and 3, the safety gear further comprises a limit post 6 fixedly disposed on the mounting base 1 at a position corresponding to the outer side of the clamp base 2, and a reset mechanism 7 fixedly disposed on the mounting base 1 for moving the clamp base 2 close to the limit post 6. When the brake is restored, the initial position of the clamp seat 2 is limited by the limiting post 6, and the clamp seat 2 moves in the opposite direction during the brake under the action of the reset mechanism 7, so that the clamp seat 2 is restored to the initial position.
It should be noted that, in the initial state of the clamp seat 2, the inner wall of the jaw of the clamp seat 2 at one side far away from the brake wheel 4 and the brake wheel 4 are not contacted with the car guide rail, and it can be further understood that under the action of the reset mechanism 7 and the limit post 6, the clamp seat 2 and the brake wheel 4 are not contacted with the car guide rail in the brake recovery state, so that the risk of damage of friction of the car guide rail during the running of the car is effectively reduced, and the running stability and safety of the elevator car can be effectively ensured.
Specifically, the reset mechanism 7 includes a hinge 71 fixedly disposed on one side of the mounting base 1 away from the limit post 6, a second positioning post 72 penetrating through the hinge 71 and fixedly connected with the jaw base 2, and a reset spring 73 sleeved on the second positioning post 72, where two ends of the reset spring 73 are fixedly connected with the jaw base 2 and the hinge 71 respectively. When the braking is restored, the braking wheel 4 is in contact with the car guide rail, and the braking force on the swinging plate 3 and the braking wheel 4 is released, so that the clamp seat 2 moves reversely under the action of the elastic force of the return spring 73, one side, far away from the braking wheel 4, of the clamp seat 2 is separated from the car guide rail, and the clamp seat 2 is completely separated from the car guide rail.
Further, in order to verify the movement of the swinging plate 3 and the clamp seat 2, the use safety of the safety clamp is ensured; and a contact switch 8 is fixedly arranged on the mounting seat 1 at the outer side position corresponding to the clamp seat 2 and the outer side position corresponding to the swinging plate 3 of the clamp seat 2. The two contact switches 8 are used for verifying the actions of the clamp seat 2 and the swinging plate 3 respectively, so that the states of the clamp seat 2 and the swinging plate 3 can be judged, the running state of the safety tongs can be judged, and the use safety of the safety tongs is ensured.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (9)
1. The novel electrically triggered elevator safety tongs comprises a tongs seat (2), a swinging plate (3), a brake wheel (4) and an electromagnet (5), wherein the tongs seat (2) is provided with a jaw corresponding to a car guide rail;
the swinging plate (3) is hinged to one surface, far away from the elevator car, of the clamp seat (2), and the electromagnet (5) is fixedly arranged at one end, corresponding to the swinging plate (3), of the clamp seat (2) and is used for pushing the swinging plate (3) to swing by electrifying;
the brake wheel (4) is movably arranged on the swinging plate (3), and the brake wheel (4) is positioned in the jaw and swings along with the swinging plate (3) to be in contact with the car guide rail;
the method is characterized in that: the car braking device is characterized by further comprising a mounting seat (1) for supporting the clamp seat (2), wherein the clamp seat (2) is slidably mounted on the mounting seat (1), and the braking wheel (4) is in contact with the car guide rail and then forces the clamp seat (2) to move transversely to be in contact with the car guide rail for braking.
2. The novel electrically triggered elevator safety gear of claim 1, wherein: the swing plate (3) is provided with a guide groove (31), and one end of the brake wheel (4) away from the clamp seat (2) is fixedly provided with a connecting shaft (41) positioned in the guide groove (31).
3. The novel electrically triggered elevator safety gear of claim 1, wherein: the clamp seat (2) is fixedly provided with a rotating shaft (21) penetrating through the swinging plate (3), and the swinging plate (3) is rotationally connected with the rotating shaft (21).
4. A new electrically triggered elevator safety gear as claimed in claim 3, characterized in that: a locating pin (22) is fixedly arranged on the clamp seat (2) near the center of the swinging plate (3), and a long waist hole (32) is formed in the swinging plate (3) at a position corresponding to the locating pin (22).
5. The novel electrically triggered elevator safety gear of claim 1, wherein: a bending part (33) which is bent towards the clamp seat (2) is arranged at the outer side position of one side of the swing plate (3) away from the brake wheel (4) corresponding to the clamp seat (2);
the clamp seat (2) is fixedly provided with a first positioning column (23) penetrating through the bending part (33), a trigger spring (231) is sleeved on the first positioning column (23), and two ends of the trigger spring (231) are respectively fixedly connected with one end, far away from the clamp seat (2), of the first positioning column (23) and the bending part (33).
6. The novel electrically triggered elevator safety gear of claim 1, wherein: both ends of the pliers seat (2) are provided with sliding grooves (24), guide plates (11) are welded at positions, corresponding to the sliding grooves (24), on the mounting seat (1), and one ends, far away from the mounting seat (1), of the guide plates (11) are located in the sliding grooves (24).
7. The novel electrically triggered elevator safety gear of claim 1, wherein: the safety tongs further comprise a limiting column (6) fixedly arranged on the mounting seat (1) and corresponding to the outer side position of the tongs seat (2), and a reset mechanism (7) fixedly arranged on the mounting seat (1) and used for enabling the tongs seat (2) to move close to the limiting column (6).
8. The novel electrically triggered elevator safety gear of claim 7, wherein: the reset mechanism (7) comprises a hinge piece (71) fixedly arranged on one side, far away from the limit post (6), of the mounting seat (1), a second positioning post (72) penetrating through the hinge piece (71) and fixedly connected with the clamp seat (2), and a reset spring (73) sleeved on the second positioning post (72), wherein two ends of the reset spring (73) are fixedly connected with the clamp seat (2) and the hinge piece (71) respectively.
9. The novel electrically triggered elevator safety gear of claim 1, wherein: contact switches (8) are fixedly arranged at the outer side positions of the mounting seat (1) corresponding to the clamp seat (2) and the outer side positions of the clamp seat (2) corresponding to the swinging plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308687.2U CN220618033U (en) | 2023-08-28 | 2023-08-28 | Novel electric triggering type elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308687.2U CN220618033U (en) | 2023-08-28 | 2023-08-28 | Novel electric triggering type elevator safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220618033U true CN220618033U (en) | 2024-03-19 |
Family
ID=90225522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322308687.2U Active CN220618033U (en) | 2023-08-28 | 2023-08-28 | Novel electric triggering type elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220618033U (en) |
-
2023
- 2023-08-28 CN CN202322308687.2U patent/CN220618033U/en active Active
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