CN210884790U - Self-adaptive safety tongs lifting mechanism - Google Patents
Self-adaptive safety tongs lifting mechanism Download PDFInfo
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- CN210884790U CN210884790U CN201921675835.1U CN201921675835U CN210884790U CN 210884790 U CN210884790 U CN 210884790U CN 201921675835 U CN201921675835 U CN 201921675835U CN 210884790 U CN210884790 U CN 210884790U
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Abstract
The utility model provides a self-adaptive safety gear lifting mechanism, which comprises a swing arm driven by a speed limiter and a lifting rod linked with the safety gear, wherein the swing arm is provided with a first hole, a lifting seat is rotatably arranged in the first hole, and the length direction of the first hole is arranged to allow the lifting seat to move along the first direction; a second hole is formed in the lifting seat, and the length direction of the second hole is arranged to allow the lifting rod to move along a second direction; an anti-falling part is fixed at one end of the lifting rod penetrating out of the second strip hole; the first direction, the second direction and the third direction are spatially perpendicular to each other. According to the self-adaptive safety gear lifting mechanism, the lifting rod and the lifting seat are provided with the strip holes which allow the lifting rod and the lifting seat to move and rotate along other directions, so that the lifting rod can self-adaptively adjust the translation in other directions when being lifted upwards, and deformation, bending and incapability of resetting are avoided.
Description
Technical Field
The utility model relates to an elevator technical field especially relates to a self-adaptation safety tongs lifting mechanism.
Background
In the existing elevator field, the lifting mechanism of the safety tongs is generally divided into two categories from the position:
(1) the lifting mechanism is mounted on the bracket or the lower beam, namely, the lower lifting.
(2) The lifting mechanism is arranged on the upper beam, namely lifting.
The number of safety tongs wedge blocks lifted according to the lifting mechanism is generally divided into two categories:
(1) lifting mechanisms for lifting the wedges of a single safety gear, i.e. single lift
(2) Lifting mechanisms for lifting the wedges of two safety tongs, i.e. double-lift
Each type of lifting mechanism has its own features, advantages and disadvantages. For example, the lifting mechanism is arranged on a lower lifting structure on a bracket or a lower beam, the lifting rod of the lifting mechanism can be short and light, but a lifting handle connected with the speed limiter is inconvenient to fix with a steel wire rope, and the maintenance is troublesome.
The lifting rod of the traditional lifting mechanism is very long, and when the lifting mechanism acts, translation in other directions simultaneously exists in the process of lifting the lifting rod upwards, so that the lifting rod is easy to deform, bend and cannot reset.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems that the lifting rod is prevented from being deformed, bent and incapable of resetting due to translation in other directions in the process of upwards lifting, the self-adaptive safety tongs lifting mechanism is provided, and the lifting rod and the lifting seat are allowed to move and rotate along other directions through the arrangement of the strip holes, so that the translation in other directions can be self-adaptively adjusted when the lifting rod is upwards lifted, and the deformation, the bending and the incapable of resetting are avoided.
A self-adaptive safety gear lifting mechanism comprises a swing arm driven by a speed limiter and a lifting rod linked with safety gears, wherein a first hole is formed in the swing arm, a lifting seat is rotatably installed in the first hole, and the length direction of the first hole is arranged to allow the lifting seat to move along a first direction;
a second hole is formed in the lifting seat, one side, far away from the safety tongs, of the lifting rod penetrates through the second hole, and the length direction of the second hole is arranged to allow the lifting rod to move along a second direction;
an anti-falling part is fixed at one end of the lifting rod penetrating out of the second strip hole and used for limiting the lifting rod to fall out of the second strip hole along a third direction;
the first direction, the second direction and the third direction are vertical to each other in space, wherein the lifting direction of the safety gear during action is the third direction.
Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.
Optionally, the swing arm moves around a first axis, the lifting seat rotates around a second axis relative to the direction of the swing arm and slides along the first direction, and the first axis and the second axis are parallel to each other.
Optionally, the first axis, the second axis and the length direction of the second hole are all horizontally arranged.
Optionally, the safety gear lifting mechanism further comprises a support shaft rotatably mounted on the car frame, and a trigger handle connected with a steel rope of the speed limiter is further fixed on the support shaft; the number of the swing arms is two, the swing arms are fixed on the supporting shaft side by side, and the number of the lifting rods is two, and the two lifting rods correspond to one of the swing arms respectively.
Optionally, a linkage sleeve is mounted on the supporting shaft, the linkage sleeve and the supporting shaft are rotationally positioned in a key slot mode, and the two swing arms are fixedly connected to the linkage sleeve.
Optionally, the lifting seat comprises a body, and one side of the body is provided with a pivot extending along the second direction; the second strip hole is formed in the body, the pivot penetrates through the first strip hole, and an axial limiting piece is installed at a position penetrating through the first strip hole.
Optionally, a connecting portion of the body and the pivot is provided with a shaft shoulder, and the shaft shoulder and the axial limiting member are located on two sides of the first hole and clamped on the swing arm.
Optionally, the distance between the ends of the two swing arms far away from the support shaft is widened, an installation area is formed between the two swing arms, and the body of each lifting seat on the two swing arms is located in the installation area.
Optionally, the anti-disengaging part on the lifting rod comprises an anti-disengaging nut in threaded fit with the lifting rod and a locking nut abutted against the anti-disengaging nut.
Optionally, a spring for driving the safety tongs to reset is sleeved on the lifting rod, an adjusting nut is in threaded fit with the lifting rod and is located between the lifting seat and the safety tongs, and two ends of the spring respectively abut against the adjusting nut and the lifting seat.
According to the self-adaptive safety gear lifting mechanism, the lifting rod and the lifting seat are provided with the strip holes which allow the lifting rod and the lifting seat to move and rotate along other directions, so that the lifting rod can self-adaptively adjust the translation in other directions when being lifted upwards, and deformation, bending and incapability of resetting are avoided.
Drawings
Fig. 1 is an assembly schematic view of a self-adaptive safety gear lifting mechanism and a car frame according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an adaptive safety gear lifting mechanism according to an embodiment of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a schematic view of a lifting rod of the self-adaptive safety gear lifting mechanism according to an embodiment of the present invention;
fig. 5 is a schematic view illustrating the rotation of the swing arm of the adaptive safety gear lifting mechanism according to an embodiment of the present invention;
fig. 6 is a schematic view of a safety gear of an adaptive safety gear lifting mechanism according to an embodiment of the present invention;
fig. 7 is a schematic view of a car frame upper beam of the self-adaptive safety gear lifting mechanism according to an embodiment of the present invention.
The reference numerals in the figures are illustrated as follows:
1. swinging arms; 2. a first aperture; 3. a lifting seat; 31. a pivot; 32. an axial stop; 4. a second aperture; 5. a support shaft; 6. a trigger handle; 7. a linkage sleeve; 8. lifting a pull rod; 81. a drop-off prevention member; 9. a spring; 10. adjusting the nut; 11. safety tongs; 12. a wedge block; 13. a connecting rod.
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.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 4, an embodiment of the present application provides an adaptive safety gear lifting mechanism.
In the present embodiment, the adaptive safety gear lifting mechanism comprises a swing arm 1 driven by a speed limiter and a lifting rod 8 linked with a safety gear 11. Specifically, a first hole 2 is formed in the swing arm 1, a lifting seat 3 is rotatably mounted in the first hole 2, and the length direction of the first hole 2 is arranged to allow the lifting seat 3 to move along the first direction. In this embodiment, the second direction is a direction in which the support shaft is axially located, the third direction is a direction in which the lifting rod is axially located, i.e., a vertical direction, and the first direction is a direction perpendicular to the second direction on a horizontal plane. It can be understood that the lifting direction of the safety gear 11 is the third direction, and the lifting rod 8 can move along the third direction. In particular, the lifting seat 3 can move in a first direction upon the action of the safety gear 11. In this embodiment, the first direction is a Y direction, the second direction is an X direction, and the third direction is a Z direction.
It can be understood that the lifting mechanism is connected with the safety gear 11 through the lifting rod 8, the safety gear 11 is arranged at the bottom of the car frame, the lifting mechanism is arranged on the upper beam of the car frame, the safety gear 11 is used for clamping the guide rail of the car frame during speed limiting, and meanwhile, the lifting rod 8 and the lifting mechanism are matched to act.
In this embodiment, the swing arm 1 is provided with a first hole 2, a length direction of the first hole 2 is an arrow direction in fig. 3, and the lifting seat 3 in the first hole 2 can be displaced in the length direction, and it can be understood that the length direction of the first hole 2 is a first direction, i.e. a Y direction. Illustratively, the lifting seat 3 is provided with a second hole 4, a length direction of the second hole 4 is an arrow direction in fig. 3, the lifting rod 8 in the second hole 4 can be displaced in the length direction, and it can be understood that the length direction of the second hole 4 is a second direction, i.e. an X direction.
Please refer to fig. 5, fig. 5 is a schematic diagram of swing arm rotation according to an embodiment of the present invention, in this embodiment, when the safety gear 11 is operated, the lifting rod 8 is lifted upwards, the swing arm 1 rotates, as shown in fig. 5, when the swing arm 1 rotates, in addition to driving the lifting rod 8 to move along the Z direction, the lifting rod 8 is also driven to move along the Y direction, specifically, as shown in fig. 5, when the swing arm 1 rotates α degrees, the maximum distance of displacement in the Y direction is l, if the first hole 2 completely fits with the lifting seat 3, the lifting rod 8 will move along the Y direction, resulting in bending deformation of the lifting rod 8, as a result, the length direction of the first hole 2 is arranged to allow the lifting seat 3 to move along the first direction (Y direction), when the swing arm 1 rotates, the lifting seat 3 drives the lifting rod 8 to adaptively release the movement in the Y direction, so as to avoid bending deformation of the lifting rod 8, meanwhile, in order to avoid the swing arm 1 rotating to drive the lifting seat 3 and the lifting rod 8 to rotate, resulting in a vertical state, the lifting rod 8 can not rotate, and the lifting rod can be released, and the lifting rod can not be rotated in the vertical state, and the lifting rod can be released.
In this embodiment, the lifting seat 3 is provided with a second hole 4, one side of the lifting rod 8 far away from the safety gear 11 penetrates through the second hole 4, and the length direction of the second hole 4 is arranged to allow the lifting rod 8 to move along the second direction. It will be appreciated that the second direction is the X direction in fig. 1, and the lifting bar 8 can move in the X direction when the safety gear 11 is actuated.
Please refer to fig. 6, fig. 6 is a schematic diagram of a safety gear according to an embodiment of the present invention. In this embodiment, when the safety gear 11 is operated, the lifting rod 8 is lifted upward, and the wedge 12 of the safety gear 11 moves in the X direction to clamp the elevator guide rail. If the second hole 4 is completely engaged with the lifting rod 8, the lifting rod 8 is also moved along the X direction under the driving of the wedge 12, resulting in bending deformation of the lifting rod 8. Thus, the length direction of the second hole 4 is arranged to allow the lifting rod 8 to move in the second direction (X direction), and when the wedge 12 is clamped in the X direction, the lifting rod 8 adaptively releases the movement in the X direction to avoid the bending deformation of the lifting rod 8.
In this embodiment, an anti-dropping component 81 is fixed at one end of the lifting rod 8 penetrating through the second hole 4, and is used for limiting the lifting rod 8 to drop out of the second hole 4 along the third direction. It can be understood that the lifting direction of the safety gear 11 is the third direction, the third direction is the Z direction in fig. 1, the lifting rod 8 can move along the Z direction, and the anti-falling part 81 is provided to prevent the lifting rod 8 from falling out of the second slot 4.
In the present embodiment, the first direction, the second direction and the third direction are spatially perpendicular two by two.
According to the self-adaptive safety gear lifting mechanism, the lifting rod 8 and the lifting seat 3 are provided with the strip holes which allow the lifting rod to move and rotate along other directions, so that the lifting rod 8 can self-adaptively adjust the translation in other directions when lifted upwards, and deformation, bending and incapability of resetting are avoided.
In order to avoid the swing arm 1 from rotating to drive the lifting seat 3 and the lifting rod 8 to rotate, so that the lifting rod 8 cannot keep a vertical state and is subjected to bending deformation, and the lifting seat 3 can release the rotating displacement of the swing arm 1, in a preferred embodiment, the swing arm 1 moves around a first axis, the lifting seat 3 rotates around a second axis relative to the direction of the swing arm 1 and slides along the first direction, and the first axis and the second axis are parallel to each other. In this embodiment, the first axis and the second axis are both arranged in the first direction.
In order to avoid the lifting rod 8 from moving in other directions during the self-adaptive adjustment process, in the preferred embodiment, the first axis, the second axis and the length direction of the second hole 4 are all horizontally arranged. Specifically, the first axis, the second axis, and the length direction of the second hole 4 are all arranged in the first direction.
In other embodiments, the lifting mechanism of the safety gear 11 further comprises a support shaft 5 rotatably mounted on the car frame, and a trigger handle 6 connected with a steel rope of the speed limiter is further fixed on the support shaft 5; the swing arms 1 are two and are fixed on the supporting shaft 5 side by side, and the lifting rod 8 is two and corresponds to one of the swing arms 1. It can be understood that when the speed limiter acts, the steel rope pulls the trigger handle 6, and the pulling handle drives the supporting shaft 5 and the swing arm 1 to rotate and drives the pulling rod 8 to move upwards.
In order to enable the two swing arms 1 to synchronously rotate and the two lifting rods 8 to synchronously lift, in the preferred embodiment, the supporting shaft 5 is provided with a linkage sleeve 7, the linkage sleeve 7 and the supporting shaft 5 are rotationally positioned in a key way, and the two swing arms 1 are fixedly connected to the linkage sleeve 7. It can be understood that the two swing arms 1 are driven by the linkage sleeve 7 to synchronously rotate. In other embodiments, the linkage sleeve 7 may be mounted on the support shaft 5 by other connection methods, and only the linkage sleeve 7 needs to rotate along with the support shaft 5.
To make the installation of the pulling seat 3 more stable, in a preferred embodiment, the pulling seat 3 comprises a body with a pivot extending in the second direction on one side; the second hole 4 is opened on the body, the pivot shaft penetrates through the first hole 2, and an axial limiting piece 32 is installed at the position penetrating through the first hole 2. It will be appreciated that the pull cup 3 pivots in the first aperture 2. In this embodiment, the axial limiting member 32 may be an anti-slip nut screwed with the pivot and a lock nut abutting against the anti-slip nut. In other embodiments, the axial stop 32 may be another connecting component.
In other embodiments, the connecting portion of the body and the pivot has a shoulder, and the shoulder and the axial limiting member are located on two sides of the first hole 2 and clamped on the swing arm 1. It can be understood that the diameter of the shaft shoulder close to the body is large, the shaft shoulder cannot penetrate through the first hole 2, and the shaft shoulder and the axial limiting part can be clamped on the swing arm 1 in a matching mode to ensure the stability of the lifting seat 3.
In order to keep the lifting seats 3 on the two swing arms 1 at a safe distance and avoid collision, in a preferred embodiment, the distance between the ends of the two swing arms 1 far away from the support shaft 5 is widened, and a mounting area is formed between the two swing arms 1, and the body of each lifting seat 3 on the two swing arms 1 is positioned in the mounting area. It will be appreciated that the mounting region maintains a safe distance between the two lifting blocks 3.
In other embodiments, the anti-slip part 81 on the lifting rod 8 comprises an anti-slip nut threadedly engaged with the lifting rod 8 and a lock nut abutting against the anti-slip nut. It can be understood that the anti-dropping element 81 can be other fixing elements, and only the effect of preventing the lifting rod 8 from dropping out of the second hole 4 along the Z direction is achieved.
In order to enable the lifting rod 8 to be reset after being lifted for reuse, in a preferred embodiment, a spring 9 for driving a safety gear 11 to reset is sleeved on the lifting rod 8, an adjusting nut 10 is in threaded fit with the lifting rod 8, the adjusting nut 10 is located between the lifting seat 3 and the safety gear 11, and two ends of the spring 9 respectively abut against the adjusting nut 10 and the lifting seat 3. It is understood that the specification of the spring 9 is not limited, and can be set according to actual requirements.
Referring to fig. 7, fig. 7 is a schematic view of an upper beam of a car frame according to an embodiment of the present invention. In this embodiment, the lifting mechanisms are disposed on both sides of the upper beam, and the lifting mechanisms on both sides are connected through the connecting rod 13. As shown in fig. 7, only one side of the pulling mechanism is provided with the trigger handle 6. When the speed of the speed limiter is limited, the steel rope pulls the trigger handle 6, the lifting handle 6 drives the support shaft 5 and the swing arm 1 to rotate, and meanwhile, the lifting mechanism on the other side is driven to synchronously act through the connecting rod 13.
According to the self-adaptive safety gear lifting mechanism, the lifting rod and the lifting seat are provided with the strip holes which allow the lifting rod and the lifting seat to move and rotate along other directions, so that the lifting rod can self-adaptively adjust the translation in other directions when being lifted upwards, and deformation, bending and incapability of resetting are avoided.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The self-adaptive safety gear lifting mechanism is characterized by comprising a swing arm driven by a speed limiter and a lifting rod linked with the safety gear, wherein the swing arm is provided with a first hole, a lifting seat is rotatably arranged in the first hole, and the length direction of the first hole is arranged to allow the lifting seat to move along a first direction;
a second hole is formed in the lifting seat, one side, far away from the safety tongs, of the lifting rod penetrates through the second hole, and the length direction of the second hole is arranged to allow the lifting rod to move along a second direction;
an anti-falling part is fixed at one end of the lifting rod penetrating out of the second strip hole and used for limiting the lifting rod to fall out of the second strip hole along a third direction;
the first direction, the second direction and the third direction are vertical to each other in space, wherein the lifting direction of the safety gear during action is the third direction.
2. The adaptive safety gear lifting mechanism of claim 1, wherein the swing arm moves about a first axis, the lifting block rotates about a second axis relative to the swing arm direction and slides in the first direction, and the first axis and the second axis are parallel to each other.
3. The adaptive safety gear lifting mechanism of claim 2, wherein the first axis, the second axis, and the second aperture are all horizontally disposed along their length.
4. The self-adaptive safety gear lifting mechanism according to claim 1, characterized by further comprising a support shaft rotatably mounted on the car frame, and a trigger handle connected with a speed governor steel rope is further fixed on the support shaft; the number of the swing arms is two, the swing arms are fixed on the supporting shaft side by side, and the number of the lifting rods is two, and the two lifting rods correspond to one of the swing arms respectively.
5. The adaptive safety gear lifting mechanism according to claim 4, wherein a linkage sleeve is mounted on the support shaft, the linkage sleeve and the support shaft are rotationally positioned in a key way, and two swing arms are fixedly connected to the linkage sleeve.
6. The adaptive safety gear pulling mechanism of claim 1, wherein the pulling block comprises a body with a pivot shaft extending in the second direction on one side; the second strip hole is formed in the body, the pivot penetrates through the first strip hole, and an axial limiting piece is installed at a position penetrating through the first strip hole.
7. The adaptive safety gear lifting mechanism according to claim 6, wherein a shoulder is provided at a joint of the body and the pivot, and the shoulder and the axial stopper are located at two sides of the first hole and clamped on the swing arm.
8. The adaptive safety gear lifting mechanism according to claim 4, wherein the two swing arms are widened at an end away from the support shaft, and a mounting area is formed between the two swing arms, and the body of each lifting seat on the two swing arms is located in the mounting area.
9. The adaptive safety gear lifting mechanism according to claim 1, wherein the anti-drop member on the lifting rod comprises an anti-drop nut in threaded fit with the lifting rod and a lock nut abutting against the anti-drop nut.
10. The self-adaptive safety gear lifting mechanism according to claim 1, wherein a spring for driving the safety gear to reset is sleeved on the lifting rod, an adjusting nut is in threaded fit with the lifting rod and is located between the lifting seat and the safety gear, and two ends of the spring respectively abut against the adjusting nut and the lifting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921675835.1U CN210884790U (en) | 2019-10-08 | 2019-10-08 | Self-adaptive safety tongs lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921675835.1U CN210884790U (en) | 2019-10-08 | 2019-10-08 | Self-adaptive safety tongs lifting mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN210884790U true CN210884790U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921675835.1U Active CN210884790U (en) | 2019-10-08 | 2019-10-08 | Self-adaptive safety tongs lifting mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022249793A1 (en) * | 2021-05-27 | 2022-12-01 | 株式会社日立製作所 | Emergency stop device, elevator, and method of restoring emergency stop device |
| WO2023233462A1 (en) * | 2022-05-30 | 2023-12-07 | 三菱電機ビルソリューションズ株式会社 | Safety device for elevator |
-
2019
- 2019-10-08 CN CN201921675835.1U patent/CN210884790U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022249793A1 (en) * | 2021-05-27 | 2022-12-01 | 株式会社日立製作所 | Emergency stop device, elevator, and method of restoring emergency stop device |
| WO2023233462A1 (en) * | 2022-05-30 | 2023-12-07 | 三菱電機ビルソリューションズ株式会社 | Safety device for elevator |
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