CN220351416U - Elevator overspeed governor and elevator - Google Patents
Elevator overspeed governor and elevator Download PDFInfo
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- CN220351416U CN220351416U CN202322028056.5U CN202322028056U CN220351416U CN 220351416 U CN220351416 U CN 220351416U CN 202322028056 U CN202322028056 U CN 202322028056U CN 220351416 U CN220351416 U CN 220351416U
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- 210000000078 claw Anatomy 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000009471 action Effects 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses an elevator speed limiter and an elevator, which comprise a rope pulley, a roller, a braking claw, a first fixed plate, an electric control module and a triggering mechanism, wherein the rope pulley is matched with the roller; the speed limiter is provided with a first state and a second state, the trigger mechanism comprises a trigger piece, and when the speed limiter is in the first state, the trigger piece is not contacted with the trigger bolt; when the speed limiter is in the second state, the top surface of the trigger piece is abutted with the trigger bolt; the electrical control module is used for controlling the action of the trigger mechanism. According to the elevator speed limiter, a trigger rod is not required to be additionally arranged on the brake claw, so that the space is saved; and the abutting joint between the trigger piece and the trigger bolt is used for replacing the direct pushing of the trigger rod, so that the problem that the pushing acting force is difficult to control is avoided.
Description
Technical Field
The utility model relates to the technical field of elevator safety components, in particular to an elevator speed limiter and an elevator with the same.
Background
At present, the unified method for enabling the speed limiter to act to trigger the safety tongs to act is basically to directly push the trigger rod of the speed limiter through the action of an electromagnet or a motor, so that the action of the speed limiter is realized. While this requires a larger motor or electromagnet, the pawl of the governor requires an additional protruding shaft as a trigger lever, resulting in a larger size space and an increase in the body size of the governor. In addition, the motor or the electromagnet is adopted to directly push the trigger rod, so that the risk of overlarge acting force or overlarge acting force exists, and the risk of damaging components exists; too little force may not act effectively, and therefore, control of the force pushing the trigger lever is a difficulty.
Disclosure of Invention
In view of the above, in order to overcome the defects of the prior art, the utility model provides an elevator speed limiter with a trigger mechanism, which can solve the problem that the pushing acting force is difficult to control due to directly pushing a trigger rod.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the elevator speed limiter comprises a rope pulley, a roller, a braking claw, a first fixing plate, an electric control module and a triggering mechanism, wherein the rope pulley is matched with the roller, the roller is in rotary connection with one end of the braking claw, a triggering bolt penetrating through the thickness direction of the braking claw is arranged at the other end of the braking claw, one end of the triggering bolt, which is close to the first fixing plate, extends outwards from the side surface of the braking claw, the triggering mechanism is connected with the first fixing plate, and the first fixing plate is positioned between the braking claw and the triggering mechanism; the speed limiter is provided with a first state and a second state, the triggering mechanism comprises a triggering piece, and when the speed limiter is in the first state, the triggering piece is not contacted with the triggering bolt; when the speed limiter is in the second state, the top surface of the trigger piece is abutted with the trigger bolt; the electrical control module is used for controlling the action of the trigger mechanism.
According to a preferred implementation aspect of the present utility model, the rope pulley further comprises a second fixing plate, the first fixing plate and the second fixing plate are both connected with the rope pulley, and the first fixing plate and the second fixing plate are respectively located at two sides of the rope pulley; the braking claw is connected with the first fixing plate and the second fixing plate, and the braking claw is located between the first fixing plate and the second fixing plate. In some embodiments of the present utility model, the brake pawl is connected to the first fixing plate and the second fixing plate through a bolt-nut assembly, and the brake pawl is not in contact with both the first fixing plate and the second fixing plate.
According to the preferred implementation aspect of the utility model, the triggering mechanism further comprises an electromagnet, a connecting shaft is slidably arranged at one end of the electromagnet, which is close to the triggering piece, an elastic piece and a baffle are sleeved on the connecting shaft, and one end of the connecting shaft, which is far away from the electromagnet, is fixedly connected with the triggering piece; one end of the elastic piece is fixedly connected with the electromagnet, and the other end of the elastic piece is fixedly connected with the baffle. Under the effect of the electric control module, the electromagnet is electrified to drive the connecting shaft to retract in the direction of approaching the electromagnet, and the trigger piece is driven to retract in the direction of approaching the electromagnet, so that the trigger piece moves to the position where the top surface of the trigger piece is abutted with the bottom surface of the trigger bolt to block the swing of the brake claw, thereby preventing the roller from rotating, and finally preventing the rope wheel from rotating to trigger the speed limiter. The existing trigger bolt is used as a trigger rod, and the trigger rod is not required to be additionally arranged on the brake claw, so that the space is saved. In addition, the direct pushing trigger rod in the prior art is replaced by the abutting connection between the trigger piece and the trigger bolt, so that the problem that the acting force for pushing the trigger rod is difficult to control is avoided.
According to a preferred embodiment of the present utility model, the trigger member includes a bottom plate, a first side plate, a second side plate, a third side plate, a connecting plate, and a top plate, wherein the bottom plate is parallel to the connecting plate, the first side plate and the second side plate are perpendicular to each other and are located between the bottom plate and the connecting plate, one end of the third side plate is connected with one end of the connecting plate, and the other end of the third side plate is connected with the top plate; one end of the connecting shaft, which is far away from the electromagnet, is fixedly connected with the first side plate.
According to a preferred embodiment of the present utility model, the top plate is disposed obliquely, and the top plate is inclined downward to the left from an end near the third side plate. When the speed limiter is in the second state, the top surface of the top plate can be abutted with the bottom surface of the trigger bolt to trigger the speed limiter, so that the top plate is obliquely arranged, the top surface of the top plate can slide downwards from the obliquely upper direction of the trigger bolt when the speed limiter is switched from the first state to the second state, and the top surface of the top plate is abutted with the bottom surface of the trigger bolt.
According to a preferred implementation aspect of the present utility model, when the speed limiter is in the first state, the elastic member is in a natural state, and a gap is formed between the top plate and the trigger bolt; when the speed limiter is in the second state, the elastic piece is in a compressed state, and the top surface of the top plate is abutted to the bottom of the trigger bolt. When the speed limiter is in a first state, namely in normal operation, the rope pulley continuously rotates, the roller drives the brake claw to swing left and right, at the moment, the trigger piece is not contacted with the trigger bolt, and the speed limiter normally operates and does not act. After the elevator gives an action instruction for triggering the speed limiter, the speed limiter is finally triggered to act through the control action of the electric control module, so that the speed limiter is in a second state, the elastic piece can be compressed by the baffle, and when the elevator is powered off, the elastic piece has resilience force and can bring the triggering piece to reset, so that the triggering piece is far away from the triggering bolt.
According to a preferred embodiment of the present utility model, when the speed limiter is in the first state, a distance from the baffle to an end of the trigger element near the elastic element is smaller than or equal to a distance that the connecting shaft moves relative to the electromagnet when the speed limiter is switched from the first state to the second state. The trigger piece can be pushed to enable the baffle to move towards the direction close to the electromagnet to compress the elastic piece in the moving process, the elastic piece can have resilience force, and the trigger piece can be driven to reset when power is cut off.
According to the preferred implementation aspect of the utility model, a groove is formed in one end, close to the trigger piece, of the braking claw, a plurality of brackets are uniformly arranged on the rope wheel at intervals, and each bracket comprises a first connecting rod and a second connecting rod which are symmetrically arranged.
According to a preferred implementation aspect of the present utility model, a first protrusion protruding outwards is provided on a side of the first connecting rod on each bracket away from the second connecting rod, a second protrusion protruding outwards is provided on a side of the second connecting rod on each bracket away from the first connecting rod, the first protrusion and the second protrusion are symmetrically arranged, and the groove is used for accommodating the first protrusion or the second protrusion. The groove is engaged with the first projection or the second projection to stop the speed limiter.
The utility model also provides an elevator comprising an elevator overspeed governor as described above.
Compared with the prior art, the utility model has the following advantages: according to the elevator speed limiter, the existing trigger bolt on the speed limiter is used as the trigger rod, and the trigger rod is not required to be additionally arranged on the brake claw, so that the space is saved; and under the effect of the electric control module, the trigger piece moves to the position that the top surface of the trigger piece is in butt joint with the bottom surface of the trigger bolt through a series of actions of the electromagnet and the connecting shaft, and finally the speed limiter is triggered to act, and the trigger rod is not directly pushed, so that the problem that the acting force for pushing the trigger rod is difficult to control is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a speed limiter according to a preferred embodiment of the present utility model;
FIG. 2 is a schematic perspective view of a trigger member according to a preferred embodiment of the present utility model;
FIG. 3 is a schematic diagram of a front view of a speed limiter according to a preferred embodiment of the present utility model with part of the structure removed when the speed limiter is in a first state;
FIG. 4 is a schematic diagram of a front view of a speed limiter according to a preferred embodiment of the present utility model with part of the structure removed when the speed limiter is in a second state;
wherein, the reference numerals are as follows: rope wheel-1, bracket-11, first connecting rod-111, first bulge-M, second connecting rod-112, second bulge-N, roller-2, brake claw-3, groove-31, first fixed plate-4, second fixed plate-5, trigger mechanism-6, trigger piece-61, bottom plate-611, first side plate-612, second side plate-613, third side plate-614, connecting plate-615, top plate-616, electromagnet-62, connecting shaft-63, elastic piece-64, baffle-65, trigger bolt-7.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, 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, shall fall within the scope of the utility model.
Referring to fig. 1-4, the present embodiment provides an elevator that includes an elevator governor. The elevator governor of the present embodiment includes a sheave 1, a roller 2, a brake claw 3, a first fixed plate 4, a second fixed plate 5, an electrical control module, and a trigger mechanism 6. The edge of the rope wheel 1 and the edge of the roller 2 are contacted with each other, and the two are matched with each other to roll; the first fixing plate 4 and the second fixing plate 5 are respectively positioned at two sides of the rope pulley 1 and are connected with the rope pulley 1; the first fixing plate 4 and the second fixing plate 5 are also respectively positioned at two sides of the braking claw 3 and are connected with the braking claw 3 through bolt and nut assemblies, but the braking claw 3 is not contacted with the first fixing plate 4 and the second fixing plate 5. The roller 2 is rotationally connected with one end of the brake claw 3, and the roller 2 is slidingly connected with the second fixed plate 5 in the up-down direction; the other end of the brake claw 3 is provided with a trigger bolt 7 penetrating through the thickness direction of the brake claw, one end of the trigger bolt 7, which is close to the first fixed plate 4, extends outwards from the side surface of the brake claw 3, and one end of the brake claw 3, which is close to the trigger bolt 7, is provided with a groove 31.
Further, referring to fig. 1, the trigger mechanism 6 of the present embodiment is connected to the first fixed plate 4, and the first fixed plate 4 is located between the brake pawl 3 and the trigger mechanism 6. Referring to fig. 3 and 4, the triggering mechanism 6 includes a triggering member 61, an electromagnet 62, and a connecting shaft 63 slidably disposed at one end of the electromagnet 62 near the triggering member 61, an elastic member 64 and a baffle 65 are sleeved on the connecting shaft 63, one end of the elastic member 64 is fixedly connected with the electromagnet 62, the other end of the elastic member 64 is fixedly connected with the baffle 65, and both the baffle 65 and the elastic member 64 can slide back and forth on the connecting shaft 63. Referring to fig. 2, the triggering element 61 includes a bottom plate 611, a first side plate 612, a second side plate 613, a third side plate 614, a connecting plate 615 and a top plate 616, wherein the bottom plate 611 is parallel to the connecting plate 615, the first side plate 612 and the second side plate 613 are perpendicular to each other and are located between the bottom plate 611 and the connecting plate 615, one end of the third side plate 614 is connected with one end of the connecting plate 615, the other end of the third side plate 614 is connected with the top plate 616, and one end of the connecting shaft 63 away from the electromagnet 62 is fixedly connected with the first side plate 612. The top plate 616 is obliquely arranged, and one end, which is close to the third side plate 614, of the top plate 616 is inclined downwards and leftwards, so that the top surface of the top plate 616 slides downwards from the obliquely upper direction of the trigger bolt 7, and the top surface of the top plate 616 is abutted with the bottom surface of the trigger bolt 7. The elastic member 64 in this embodiment is preferably a spring.
Further, referring to fig. 3 and 4, in the present embodiment, five brackets 11 are provided on the sheave 1 at even intervals, and each bracket 11 includes a first connecting rod 111 and a second connecting rod 112 which are symmetrically provided. The first connecting rod 111 on each bracket 11 is provided with an outwardly protruding first protruding portion M on a side far away from the second connecting rod 112, the second connecting rod 112 on each bracket 11 is provided with an outwardly protruding second protruding portion N on a side far away from the first connecting rod 111, and the first protruding portion M and the second protruding portion N are symmetrically arranged.
Specifically, the speed limiter has a first state and a second state, as shown in fig. 3, when the speed limiter is in the first state, the speed limiter is in a normal working state, namely, the rope pulley 1 continuously rotates, the roller 2 drives the brake claw 3 to swing left and right, the trigger piece 61 is not contacted with the trigger bolt 7, and the speed limiter normally runs and does not act; the elastic member 64 is in a natural state, and a gap is formed between the top plate 616 and the trigger bolt 7. After the elevator gives an action instruction for triggering the speed limiter, under the control of the electric control module, the electromagnet 62 is electrified to drive the connecting shaft 63 to retract towards the direction close to the electromagnet 62, and then the trigger piece 61 is driven to retract towards the direction close to the electromagnet 62, so that the baffle plate 65 compresses the elastic piece 64, and meanwhile, the trigger piece 61 moves to the top surface of the top plate 616 to be abutted against the bottom surface of the trigger bolt 7 (as shown in fig. 4), thereby preventing the swinging of the brake claw 3, further preventing the rotation of the roller 2, finally preventing the rotation of the rope pulley 1 to trigger the speed limiter to act, and enabling the speed limiter to be in a second state. Since the elastic member 64 is compressed, in the case of power failure, the resilience of the elastic member 64 drives the baffle 65 to move, and further drives the trigger member 61 to return, so that the trigger member 61 is far away from the trigger bolt 7. Further, in order to ensure that the trigger piece 61 will push the blocking plate 65 to move in the direction approaching to the electromagnet 62 during the moving process so as to compress the elastic piece 64, the elastic piece 64 can have a resilience force, and the trigger piece 61 can be guaranteed to be reset when the power is cut off, in this embodiment, the distance from the blocking plate 65 to the end of the trigger piece 61 approaching to the elastic piece 64 is set smaller than the moving distance of the connecting shaft 63 relative to the electromagnet 62 when the speed limiter is switched from the first state to the second state.
According to the elevator speed limiter, the existing trigger bolt 7 is used as the trigger rod, so that the trigger rod does not need to be additionally arranged on the brake claw 3, and the space is saved; the abutting joint between the trigger piece 61 and the trigger bolt 7 is used for replacing the direct pushing of the trigger rod in the prior art, so that the problem that the acting force for pushing the trigger rod is difficult to control is avoided.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. The elevator speed limiter is characterized by comprising a rope wheel, a roller, a braking claw, a first fixing plate, an electric control module and a triggering mechanism, wherein the rope wheel is matched with the roller, the roller is rotationally connected with one end of the braking claw, the other end of the braking claw is provided with a triggering bolt penetrating through the thickness direction of the braking claw, one end of the triggering bolt, which is close to the first fixing plate, extends outwards from the side surface of the braking claw, the triggering mechanism is connected with the first fixing plate, and the first fixing plate is positioned between the braking claw and the triggering mechanism; the speed limiter is provided with a first state and a second state, the triggering mechanism comprises a triggering piece, and when the speed limiter is in the first state, the triggering piece is not contacted with the triggering bolt; when the speed limiter is in the second state, the top surface of the trigger piece is abutted with the trigger bolt; the electrical control module is used for controlling the action of the trigger mechanism.
2. The elevator speed limiter of claim 1, further comprising a second fixed plate, wherein the first and second fixed plates are each connected to the sheave, the first and second fixed plates being located on either side of the sheave, respectively; the braking claw is connected with the first fixing plate and the second fixing plate, and the braking claw is located between the first fixing plate and the second fixing plate.
3. The elevator speed limiter according to claim 1, wherein the triggering mechanism further comprises an electromagnet, a connecting shaft is slidably arranged at one end of the electromagnet close to the triggering piece, an elastic piece and a baffle are sleeved on the connecting shaft, and one end of the connecting shaft far away from the electromagnet is fixedly connected with the triggering piece; one end of the elastic piece is fixedly connected with the electromagnet, and the other end of the elastic piece is fixedly connected with the baffle.
4. The elevator speed limiter of claim 3, wherein the trigger comprises a bottom plate, a first side plate, a second side plate, a third side plate, a connecting plate, and a top plate, the bottom plate being parallel to the connecting plate, the first side plate and the second side plate being perpendicular to each other and between the bottom plate and the connecting plate, one end of the third side plate being connected to one end of the connecting plate, the other end of the third side plate being connected to the top plate; one end of the connecting shaft, which is far away from the electromagnet, is fixedly connected with the first side plate.
5. The elevator governor of claim 4, wherein the top plate is disposed obliquely and the top plate is inclined downward to the left from an end near the third side plate.
6. The elevator governor of claim 4, wherein the resilient member is in a natural state when the governor is in the first state, the top plate having a gap with a trigger bolt; when the speed limiter is in the second state, the elastic piece is in a compressed state, and the top surface of the top plate is abutted to the bottom of the trigger bolt.
7. The elevator governor of claim 6, wherein a distance from the baffle to an end of the trigger member proximate the resilient member when the governor is in the first state is less than or equal to a distance the connecting shaft moves relative to the electromagnet when the governor transitions from the first state to the second state.
8. The elevator speed limiter according to claim 1, wherein the braking claw is provided with a groove at one end close to the trigger piece, a plurality of brackets are uniformly arranged on the rope sheave at intervals, and each bracket comprises a first connecting rod and a second connecting rod which are symmetrically arranged.
9. The elevator speed limiter according to claim 8, wherein a first protrusion protruding outwards is provided on a side of the first connecting rod on each bracket away from the second connecting rod, a second protrusion protruding outwards is provided on a side of the second connecting rod on each bracket away from the first connecting rod, the first protrusion and the second protrusion are symmetrically arranged, and the groove is used for accommodating the first protrusion or the second protrusion.
10. Elevator, characterized by comprising an elevator governor according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322028056.5U CN220351416U (en) | 2023-07-31 | 2023-07-31 | Elevator overspeed governor and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322028056.5U CN220351416U (en) | 2023-07-31 | 2023-07-31 | Elevator overspeed governor and elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220351416U true CN220351416U (en) | 2024-01-16 |
Family
ID=89479865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322028056.5U Active CN220351416U (en) | 2023-07-31 | 2023-07-31 | Elevator overspeed governor and elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220351416U (en) |
-
2023
- 2023-07-31 CN CN202322028056.5U patent/CN220351416U/en active Active
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