CN210505145U - Safety brake device of elevator - Google Patents
Safety brake device of elevator Download PDFInfo
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- CN210505145U CN210505145U CN201921647058.XU CN201921647058U CN210505145U CN 210505145 U CN210505145 U CN 210505145U CN 201921647058 U CN201921647058 U CN 201921647058U CN 210505145 U CN210505145 U CN 210505145U
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- connecting rod
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Abstract
The utility model discloses a safety brake device of elevator, including connecting steel pipe (1) and establishing the pincers body subassembly at connecting steel pipe (1) both ends, pincers body subassembly includes safety tongs bottom plate (2), direction apron (3) and brake pads (4), brake pads (4) are connected its characterized in that with arm-tie (5) on the stay cord: brake pads (4) are connected with pull rod (5) through many link assembly, many link assembly includes first connecting rod (6), second connecting rod (7), third connecting rod (8), limiting plate (9) and spring (10), the guiding hole that the one end of first connecting rod (6) was passed on direction apron (3) is connected with brake pads (4), and the other end rotates to be connected on safety tongs bottom plate (2), and the device adopts many connecting rods to replace original single connecting rod, has reduced the erection dimension greatly guaranteeing the prerequisite that can normally drive.
Description
Technical Field
The utility model relates to an elevator spare part technical field specifically says a safety brake of elevator.
Background
The safety brake device of the elevator comprises a connecting steel pipe, and a clamp body assembly and a lifting mechanism which are arranged at two ends of the connecting steel pipe, wherein the clamp body assembly comprises a safety clamp bottom plate, a guide cover plate and a brake block, and the brake block is connected with the lifting mechanism on a pull rope. The function of the lifting mechanism is to transmit the mechanical action of the speed limiter to the braking mechanism and enable the braking mechanism to act, and after the braking mechanism acts, the elevator is clamped on the guide rail by the wedge block inside the braking mechanism, so that the elevator is prevented from further falling. At present, the lifting mechanism is generally connected through a connecting rod, and the lifting mechanism works to drive the brake block to work through the connecting rod, so that the brake is braked. Because of the adoption of one connecting rod, the connecting rod needs longer length, so that the appearance of the whole safety braking device is larger, and the safety braking device cannot be suitable for occasions with smaller installation space.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an adopt many connecting rods to replace original single connecting rod, reduced the safety brake device of installation size's elevator greatly guaranteeing normally driven prerequisite.
The technical scheme of the utility model is, a safety brake device of elevator with following structure is provided, including connecting the steel pipe and establishing the pincers body subassembly at connecting the steel pipe both ends, pincers body subassembly includes safety tongs bottom plate, direction apron and brake pads, the brake pads is connected its characterized in that with the arm-tie on the stay cord: the brake block is connected with the pull rod through a multi-link assembly, the multi-link assembly comprises a first link rod, a second link rod, a third link rod, a limiting plate and a spring, one end of the first link rod penetrates through a guide hole in the guide cover plate to be connected with the brake block, the other end of the first link rod is rotatably connected to the safety gear bottom plate, one end of the second link rod is connected with the pull plate, the other end of the second link rod is rotatably connected to the safety gear bottom plate, a rotating connection point of the second link rod and the safety gear bottom plate is located between the rotating connection point of one end of the first link rod and the safety gear bottom plate and the guide cover plate, one end of the third link rod is fixed in the middle of the first link rod, the other end of the third link rod is fixed in the middle of the second link rod, the limiting plate is fixed on the safety gear bottom plate, a limiting groove, the bottom of the spring is fixed on the safety gear bottom plate.
The first connecting rod is a lever, the fulcrum is a rotating connecting point of the first connecting rod and the safety tongs base plate, the power arm and the resistance arm are positioned on the same side of the fulcrum, the power arm is a section between the fixed point of the third connecting rod and the first connecting rod and the fulcrum, and the resistance arm is a section between the connecting point of the connecting rod and the brake block and the fulcrum.
The second connecting rod is a lever, the fulcrum is a rotating connecting point of the second connecting rod and the safety tongs bottom plate, the power arm and the resistance arm are positioned on the same side of the fulcrum, the power arm is a section from the connecting point of the second connecting rod and the pull plate to the fulcrum, and the resistance arm is a section between the fixed point of the second connecting rod and the fixed point of the third connecting rod and the fulcrum.
The spring is a tension spring, and the second connecting rod is propped against the bottom of the limiting groove under the action of the spring.
The distance between the fixed point of the third connecting rod and the first connecting rod and the fixed point of the third connecting rod and the second connecting rod is adjustable.
The third connecting rod is a bolt, nuts are respectively fixed on the first connecting rod and the second connecting rod, the bottom of the third connecting rod respectively penetrates through the nut of the first connecting rod and the nut of the second connecting rod, and the bottom of the third connecting rod penetrates out of the nut of the first connecting rod and is screwed tightly by a locking nut.
The first connecting rod is bent at a position close to the guide cover plate.
The second connecting rod is bent at a position close to the pulling plate.
After the structure more than adopting, the utility model has the advantages of it is following: through the dislocation installation of first connecting rod, second connecting rod, third connecting rod, a section of second connecting rod is located the below of a section of first connecting rod to the distance between brake block and the arm-tie has been shortened. The first connecting rod and the second connecting rod are levers and are installed on the safety gear bottom plate, and the second connecting rod drives the first connecting rod through the third connecting rod. The structure adopts a plurality of connecting rods to replace the original single connecting rod, greatly reduces the installation size on the premise of ensuring normal driving, and is suitable for occasions with smaller installation space.
As an improvement, the first connecting rod is a lever, the fulcrum is a rotating connecting point of the first connecting rod and the safety gear base plate, the power arm and the resistance arm are located on the same side of the fulcrum, the power arm is a section between a fixed point and the fulcrum of the third connecting rod and the first connecting rod, the resistance arm is a section between the connecting point of the connecting rod and the brake block and the fulcrum, and when the first connecting rod is pulled upwards by the third connecting rod, the first connecting rod swings upwards by taking the fulcrum as a circle center, so that the brake block is driven to work upwards, the lever structure is good in reliability, and space is saved.
As an improvement, the second connecting rod is a lever, the fulcrum is a rotating connecting point of the second connecting rod and the safety tongs bottom plate, the power arm and the resistance arm are positioned on the same side of the fulcrum, the power arm is a section from the connecting point of the second connecting rod and the pulling plate to the fulcrum, the resistance arm is a section between the fixed point of the second connecting rod and the third connecting rod and the fulcrum, and when the second connecting rod is pulled upwards by the pulling plate, the second connecting rod swings upwards by taking the fulcrum as a circle center, so that the third connecting rod is driven to work upwards, the reliability of the lever structure is good, and the space is saved.
As an improvement, the spring is a tension spring, and the second connecting rod is propped against the bottom of the limiting groove under the action of the spring to perform the functions of positioning and resetting the second connecting rod.
As an improvement, the distance between the fixed point of the third connecting rod and the first connecting rod and the fixed point of the third connecting rod and the second connecting rod can be adjusted, and the distance between the first connecting rod and the second connecting rod can be adjusted by adjusting the third connecting rod according to actual installation requirements.
As an improvement, the third connecting rod is a bolt, nuts are respectively fixed on the first connecting rod and the second connecting rod, the bottom of the third connecting rod respectively penetrates through the nut of the first connecting rod and the nut of the second connecting rod, the bottom of the third connecting rod penetrates through the nut of the first connecting rod and is screwed by a locking nut, and the adjusting device is convenient to adjust, simple in structure and good in reliability.
The first connecting rod is bent at a position close to the guide cover plate, so that the guide cover plate is avoided, and the installation size is reduced.
The second connecting rod is bent at a position close to the pulling plate, so that the installation size is reduced.
Drawings
Fig. 1 is a schematic structural view of a safety brake device of an elevator according to the present invention.
Fig. 2 is a schematic view of one side of the safety brake device of an elevator according to the present invention.
Fig. 3 is a back view of fig. 2.
Shown in the figure: 1. connecting steel pipe, 2, safety tongs bottom plate, 3, direction apron, 4, brake block, 5, arm-tie, 6, first connecting rod, 7, second connecting rod, 8, third connecting rod, 9, limiting plate, 9.1, spacing groove, 10, spring.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-3, the utility model discloses a safety brake device of elevator, including connecting steel pipe 1 and establishing the pincers body subassembly at connecting steel pipe 1 both ends, pincers body subassembly includes safety tongs bottom plate 2, direction apron 3 and brake pad 4, brake pad 4 is connected with arm-tie 5 on the stay cord, brake pad 4 is connected with arm-tie 5 through many link assembly, many link assembly includes first connecting rod 6, second connecting rod 7, third connecting rod 8, limiting plate 9 and spring 10.
One end of the first connecting rod 6 penetrates through a guide hole in the guide cover plate 3 to be connected with the brake block 4, the guide hole is obliquely arranged, and the sliding direction of the first connecting rod 6 and the brake block 4 is ensured through the guide hole. The other end of the first connecting rod 6 is rotatably connected to the safety gear base plate 2 and is higher than the end connected with the brake block 4. The first connecting rod 6 is a lever, the pivot is a rotating connecting point of the first connecting rod 6 and the safety gear base plate 2, the power arm and the resistance arm are positioned on the same side of the pivot, the power arm is a section between the fixed point of the third connecting rod 8 and the first connecting rod 6 and the pivot, and the resistance arm is a section between the connecting point of the connecting rod 6 and the brake block 4 and the pivot. The first link 6 is bent at a portion near the guide cover 3.
One end of the second connecting rod 7 is connected with the pulling plate 5, the other end of the second connecting rod is rotatably connected to the safety gear base plate 2, and a rotating connection point of the second connecting rod 7 and the safety gear base plate 2 is located between the rotating connection point of one end of the first connecting rod 6 and the safety gear base plate 2 and the guide cover plate 3. The second connecting rod 7 is a lever, the fulcrum is a rotating connecting point of the second connecting rod 7 and the safety gear base plate 2, the power arm and the resistance arm are positioned on the same side of the fulcrum, the power arm is a section from the connecting point of the second connecting rod 7 and the pulling plate 5 to the fulcrum, and the resistance arm is a section between the fixed point of the second connecting rod 7 and the third connecting rod 8 and the fulcrum. The second connecting rod 7 is bent at a position close to the pulling plate 5.
One end of the third connecting rod 8 is fixed in the middle of the first connecting rod 6, the other end of the third connecting rod is fixed in the middle of the second connecting rod 7, the limiting plate 9 is fixed on the safety gear bottom plate 2, the limiting plate 9 is provided with a limiting groove 9.1, and the second connecting rod 7 is embedded in the limiting groove 9.1. The distance between the fixed point of the third connecting rod 8 and the first connecting rod 6 and the fixed point of the third connecting rod 8 and the second connecting rod 7 can be adjusted. The third connecting rod 8 is a bolt, nuts are fixed on the first connecting rod 6 and the second connecting rod 7 respectively, the bottom of the third connecting rod 8 penetrates through the nut of the first connecting rod 6 and the nut of the second connecting rod 7 respectively, and the bottom of the third connecting rod 8 penetrates through the nut of the first connecting rod 6 and is screwed tightly by a locking nut. The nut of the first connecting rod 6 and the nut of the second connecting rod 7 are positive and negative bolts, when the bolts rotate in the positive direction, the two nuts are close to and rotate synchronously in opposite directions, when the bolts rotate in the reverse direction, the two nuts are far away from and rotate synchronously in opposite directions, and after adjustment, the two nuts are fixed by locking nuts.
The top of spring 10 is fixed at second connecting rod 7, and this fixed point is located between limiting plate 9 and arm-tie 5, the bottom of spring 10 is fixed on safety tongs bottom plate 2, and safety tongs bottom plate 2 is equipped with the baffle, and the baffle passes through the bolt fastening on safety tongs bottom plate 2, and the baffle has the slot hole that sets up from top to bottom, through when loosening the bolt, can adjust the baffle from top to bottom to adjust spring 10's tension. The spring 10 is a tension spring, and the second connecting rod 7 is pressed against the bottom of the limiting groove 9.1 under the action of the spring 10.
Claims (8)
1. The utility model provides a safety brake of elevator, is including connecting steel pipe (1) and establishing the pincers body subassembly at connecting steel pipe (1) both ends, the pincers body subassembly includes safety tongs bottom plate (2), direction apron (3) and brake block (4), brake block (4) are connected with arm-tie (5) on the stay cord, its characterized in that: the brake block (4) is connected with the pull rod (5) through a multi-link assembly, the multi-link assembly comprises a first link (6), a second link (7), a third link (8), a limiting plate (9) and a spring (10), one end of the first link (6) penetrates through a guide hole in the guide cover plate (3) to be connected with the brake block (4), the other end of the first link is rotatably connected to the safety gear base plate (2), one end of the second link (7) is connected with the pull plate (5), the other end of the second link is rotatably connected to the safety gear base plate (2), a rotation connection point of the second link (7) and the safety gear base plate (2) is located between the rotation connection point of one end of the first link (6) and the safety gear base plate (2) and the guide cover plate (3), one end of the third link (8) is fixed in the middle of the first link (6), and the other end of the third link is fixed in the middle, the safety tongs are characterized in that the limiting plate (9) is fixed on the safety tongs bottom plate (2), a limiting groove (9.1) is formed in the limiting plate (9), the second connecting rod (7) is embedded into the limiting groove (9.1), the top of the spring (10) is fixed on the second connecting rod (7), the fixed point is located between the limiting plate (9) and the pulling plate (5), and the bottom of the spring (10) is fixed on the safety tongs bottom plate (2).
2. The safety brake device of an elevator according to claim 1, wherein: the first connecting rod (6) is a lever, the fulcrum is a rotating connecting point of the first connecting rod (6) and the safety tongs base plate (2), the power arm and the resistance arm are positioned on the same side of the fulcrum, the power arm is a section between a fixed point of the third connecting rod (8) and the first connecting rod (6) and the fulcrum, and the resistance arm is a section between the connecting point of the connecting rod (6) and the brake block (4) and the fulcrum.
3. The safety brake device of an elevator according to claim 1, wherein: the safety tongs are characterized in that the second connecting rod (7) is a lever, the fulcrum is a rotating connecting point of the second connecting rod (7) and the safety tongs base plate (2), the power arm and the resistance arm are located on the same side of the fulcrum, the power arm is a section from the connecting point of the second connecting rod (7) and the pulling plate (5) to the fulcrum, and the resistance arm is a section from the fixed point of the second connecting rod (7) and the third connecting rod (8) to the fulcrum.
4. The safety brake device of an elevator according to claim 1, wherein: the spring (10) is a tension spring, and the second connecting rod (7) is propped against the bottom of the limiting groove (9.1) under the action of the spring (10).
5. The safety brake device of an elevator according to claim 1, wherein: the distance between the fixed point of the third connecting rod (8) and the first connecting rod (6) and the fixed point of the third connecting rod (8) and the second connecting rod (7) can be adjusted.
6. The safety brake device of an elevator according to claim 5, wherein: the third connecting rod (8) is a bolt, nuts are respectively fixed on the first connecting rod (6) and the second connecting rod (7), the bottom of the third connecting rod (8) respectively penetrates through the nut of the first connecting rod (6) and the nut of the second connecting rod (7), and the bottom of the third connecting rod (8) penetrates through the nut of the first connecting rod (6) and is screwed by a locking nut.
7. The safety brake device of an elevator according to claim 1, wherein: the first connecting rod (6) is bent at a position close to the guide cover plate (3).
8. The safety brake device of an elevator according to claim 1, wherein: the second connecting rod (7) is bent at a position close to the pulling plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921647058.XU CN210505145U (en) | 2019-09-29 | 2019-09-29 | Safety brake device of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921647058.XU CN210505145U (en) | 2019-09-29 | 2019-09-29 | Safety brake device of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210505145U true CN210505145U (en) | 2020-05-12 |
Family
ID=70572192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921647058.XU Active CN210505145U (en) | 2019-09-29 | 2019-09-29 | Safety brake device of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210505145U (en) |
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2019
- 2019-09-29 CN CN201921647058.XU patent/CN210505145U/en active Active
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