CN219792074U - Composite elevator safety tongs - Google Patents
Composite elevator safety tongs Download PDFInfo
- Publication number
- CN219792074U CN219792074U CN202320487264.9U CN202320487264U CN219792074U CN 219792074 U CN219792074 U CN 219792074U CN 202320487264 U CN202320487264 U CN 202320487264U CN 219792074 U CN219792074 U CN 219792074U
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- Prior art keywords
- lifting
- connecting rod
- group
- plate
- spring
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- 239000002131 composite material Substances 0.000 title claims description 17
- 238000005452 bending Methods 0.000 claims description 29
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 239000000725 suspension Substances 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 description 6
- 210000000080 chela (arthropods) Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a combined elevator safety tongs, which comprises a first safety tongs arranged at the upper part, a second safety tongs arranged at the lower part and a lifting plate (13), wherein the lifting plate (13) is connected with a first group of movable tongs blocks (1) of the first safety tongs, the first group of movable tongs blocks (1) are connected with a second group of movable tongs blocks (3) through a connecting rod (10), the top of the connecting rod (10) is connected with a first lifting bent plate (3) on the first safety tongs, the bottom of the connecting rod is connected with a second lifting bent plate (6) of the second safety tongs, and two springs are added on the lifting bent plate of the lower movable tongs blocks, so that the lower movable tongs blocks are in a dynamic suspension state, the lifting plate can be conveniently driven to move up and down synchronously, synchronous braking is realized, and the structural reliability is good.
Description
Technical Field
The utility model relates to the technical field of elevator parts, in particular to a composite elevator safety tongs.
Background
At present, a bidirectional safety tongs for an elevator is disclosed, so that the bidirectional safety tongs can stably brake and protect the elevator when the elevator goes up or down at overspeed. The utility model relates to a technical scheme of a bidirectional safety tongs for an elevator, which comprises an upper braking device, a lower braking device and a lifting mechanism and is characterized in that: the lifting mechanism is a linkage lifting rod which is limited in one direction with the upper braking device and the lower braking device and penetrates through the frame of the caliper body; the upper braking device and the lower braking device are respectively arranged at the upper part and the lower part of the clamp body frame, the upper braking device and the lower braking device are respectively provided with a pair of fixed wedges and a pair of braking wedges which are positioned at two sides of the elevator car guide rail, the pair of upper braking wedges and the pair of lower braking wedges are respectively hinged on an upper wedge connecting angle plate and a lower wedge connecting angle plate, the two connecting angle plates can slide unidirectionally on a linkage lifting rod, an upper limit compression spring and a lower limit compression spring are sleeved on the linkage lifting rod, and the two springs respectively limit the positions of the two upper braking wedges, the two lower braking wedges and the elevator car guide rail.
The upper brake wedge, the fixed wedge and the upper wedge connecting angle plate in the upper brake device are the same shape as the lower brake wedge, the fixed wedge and the lower wedge connecting angle plate in the lower brake device. The upper and lower brake devices are provided with a pair of inner and outer cover plates. The two pairs of fixed wedges are connected to the side of the frame of the pliers body through two U-shaped plate springs. The linkage lifting rod penetrates through the upper wedge block connecting angle plate, the middle plate in the clamp body frame and the lower wedge block connecting angle plate. The pair of upper brake wedges and the pair of lower brake wedges are respectively hinged on the upper wedge connecting angle plate and the lower wedge connecting angle plate through cylindrical pins and split collars fixed shafts. The utility model has the advantages that: the utility model accords with the specification of EN81-1, the upper brake wedge block and the lower brake wedge block are arranged in the same clamp body and are arranged below the lower beam of the car frame, and only one set of linkage pressure lifting system is used, so that the structure is compact, and the installation and the test are convenient. The double wedge blocks have better centering performance than the single wedge blocks, and can brake stably and vibrate little when the elevator goes up or down at overspeed.
The elevator bidirectional safety gear with the structure has the following defects: because the bidirectional braking is satisfied, and at present, a compound safety gear with unidirectional upward braking exists, namely, two safety gears distributed up and down are adopted, the bidirectional safety gear structure with the structure cannot be applied. The biggest difficulty in the composite safety tongs is that if the upper safety tongs and the lower safety tongs can synchronously upwards under the action of a lifting plate, the composite safety tongs are the biggest technical bottleneck at present.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the compound elevator safety tongs which are provided with two springs on the lifting bending plate of the lower movable tong block, so that the lower movable tong block is in a dynamic suspension state, the lifting plate can conveniently drive the upper movable tong block and the lower movable tong block synchronously, and synchronous braking is realized and the structure reliability is good.
The technical scheme of the utility model is that the composite elevator safety tongs with the following structure is provided, the composite elevator safety tongs comprises a first safety tongs body positioned at the upper part, a second safety tongs body positioned at the lower part and a lifting plate, wherein the first safety tongs body comprises a first group of movable tongs blocks, a first bracket and a first lifting bent plate, the second safety tongs body comprises a second group of movable tongs blocks, a second bracket and a second lifting bent plate, the first bracket is fixed at the top of the second bracket, and a guide rail of an elevator is positioned in an aligned long groove of the first bracket and the second bracket, and the composite elevator safety tongs are characterized in that: the lifting plate is connected with a first group of movable clamp blocks of the first safety clamp, the first group of movable clamp blocks are connected with a second group of movable clamp blocks through connecting rods, the top of each connecting rod is connected with a first lifting bending plate on the first safety clamp, the bottom of each connecting rod is connected with a second lifting bending plate of the second safety clamp, and a first spring and a second spring are sleeved outside each connecting rod; the top of the first spring is propped against the bottom surface of the second lifting bent plate, and the bottom of the first spring is propped against the first positioning block on the connecting rod; the bottom of the second spring is propped against the bottom surface of the second lifting bent plate, and the top of the second spring is propped against the second positioning block on the connecting rod.
In the initial state, the second spring presses the second stretch bending plate downward while the second stretch bending plate presses and compresses the first spring downward.
In a triggering state, the lifting plate pulls the first group of movable clamp blocks upwards, and the first group of movable clamp blocks pulls the second group of movable clamp blocks upwards through the connecting rod and extrudes the second spring until the first group of movable clamp blocks, the second group of movable clamp blocks and the guide rail are braked.
In a reset state, the second spring resets and pushes the first group of movable clamp blocks, the connecting rod and the second group of movable clamp blocks upwards.
The connecting rod is provided with external threads, the first positioning block and the second positioning block are two bolts, and the two bolts of each positioning block are locked on the external threads of the connecting rod and positioned at the position.
The fixing device comprises a first bracket and a second bracket, wherein a fixing plate is arranged between the first bracket and the second bracket, a through hole is formed in the middle of the fixing plate, a guide sleeve is arranged in the through hole, and the connecting rod movably penetrates through the guide sleeve.
The top of the connecting rod is a screw rod and penetrates through a hole in the first lifting bent plate, and then the first lifting bent plate and the top of the connecting rod are regulated by locking through an upper bolt and a lower bolt.
After adopting the structure, the utility model has the following advantages: the connecting rod is sleeved with the first spring and the second spring; the top of the first spring is propped against the bottom surface of the second lifting bent plate, and the bottom of the first spring is propped against the first positioning block on the connecting rod; the bottom of second spring offsets with the bottom surface of second lift bent plate, the top offsets with the second locating piece on the connecting rod, and the second lift bent plate fixed with second group activity pincers piece is through first spring and second spring jack-up from top to bottom to be equivalent to the suspension, when lifting the first safety tongs of pulling on the board, can drive second group activity pincers piece through the connecting rod, because the second lift bent plate can be synchronous upwards pulled, can eliminate the second group activity pincers piece and upwards remove the cooperation clearance that probably exists, this structure can realize synchronous braking and structural reliability is good.
Drawings
Fig. 1 is a schematic front view of a composite elevator safety gear according to the present utility model.
Fig. 2 is a schematic front-rear structure view of the composite elevator safety gear of the present utility model.
Fig. 3 is a schematic cross-sectional structure of the composite elevator safety gear of the present utility model.
The figure shows: 1. the first group of movable clamp blocks, 2, a first support, 3, a first lifting bent plate, 4, a second group of movable clamp blocks, 5, a second support, 6, a second lifting bent plate, 7, a lifting plate, 8, a second spring, 9, a lifting plate, 10, a connecting rod, 11, a fixing plate, 12, a guide sleeve, 13, a first positioning block, 14, a second positioning block, 15 and a first spring.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-3, the composite elevator safety tongs comprise a first safety tongs arranged at the upper part, a second safety tongs arranged at the lower part and a lifting plate 7, wherein the first safety tongs comprise a first group of movable tongs blocks 1, a first bracket 2 and a first lifting bending plate 3, the first lifting bending plate 3 is arranged at the back surface of the first group of movable tongs blocks 1, the number of the first group of movable tongs blocks 1 is two, and the guide rail of the elevator is positioned in the middle of the first group of movable tongs blocks 1.
The second safety tongs comprise a second group of movable tongs blocks 4, a second bracket 5 and a second lifting bending plate 6, and the first bracket 2 is fixed on the top of the second bracket 5.
The guide rail 9 of the elevator is located in an aligned elongated slot of the first bracket 2 and the second bracket 5. The first group of movable clamp blocks 1 and the second group of movable clamp blocks 4 are positioned on two sides of the guide rail 9, and the first lifting bending plate 3 and the second lifting bending plate 6 respectively drive the connected movable clamp blocks to be upward during braking.
The lifting plate 7 is connected with a first group of movable clamp blocks 1 of the first safety clamp, the first group of movable clamp blocks 1 are connected with a second group of movable clamp blocks 4 through a connecting rod 10, the top of the connecting rod 10 is connected with a first lifting bending plate 3 on the first safety clamp, the bottom of the connecting rod 10 is connected with a second lifting bending plate 6 of the second safety clamp, and a first spring and a second spring 8 are sleeved outside the connecting rod 10; the top of the first spring is propped against the bottom surface of the second stretch bending plate 6, and the bottom of the first spring is propped against the first positioning block 13 on the connecting rod 10; the bottom of the second spring 8 is propped against the bottom surface of the second lifting bending plate 6, and the top of the second spring is propped against the second positioning block 14 on the connecting rod 10.
In the initial state, the second spring 8 presses the second pull-up bending plate 6 downward, while the second pull-up bending plate 6 presses and compresses the first spring downward.
In the triggering state, the lifting plate 7 pulls the first group of movable clamp blocks 1 upwards, and the first group of movable clamp blocks 1 pulls the second group of movable clamp blocks 4 upwards through the connecting rod 10 and presses the second springs 8 until the first group of movable clamp blocks 1 and the second group of movable clamp blocks 4 are braked with the guide rail 9.
In the reset state, the second spring 8 resets and pushes the first set of movable jaw 1, the connecting rod 10 and the second set of movable jaw 4 upwards.
The connecting rod 10 is provided with external threads, the first positioning block 13 and the second positioning block 14 are two bolts, and the two bolts of each positioning block are locked on the external threads of the connecting rod 10 and positioned at the position. The two bolts of the first positioning block 13 are connected with the external threads of the connecting rod 10 to adjust the length of the second spring 8, so as to adjust the force of the second spring 8 pushing the second stretch bending plate 6. The two bolts of the second positioning block 14 are connected with the external threads of the connecting rod 10 to adjust the length of the first spring, so as to adjust the force of the first spring to push the second lifting bending plate 6, and finally, the second lifting bending plate 6 is stopped at a required position.
The middle of the first bracket 2 and the second bracket 5 is provided with a fixed plate 11, the middle of the fixed plate 11 is provided with a through hole, the through hole is internally provided with a guide sleeve 12, and the connecting rod 10 movably passes through the guide sleeve 12. The guide sleeve 12 plays a guiding role, and prevents the outer wall of the connecting rod 10 from being directly contacted with the inner wall of the through hole of the fixed plate 11 to be worn.
The top of the connecting rod 10 is a screw rod and penetrates through a hole in the first lifting bending plate 3, and then the first lifting bending plate 3 and the top of the connecting rod 10 are regulated by locking through upper and lower bolts.
Claims (6)
1. The utility model provides a combined type elevator safety tongs, includes first safety tongs on upper portion, second safety tongs and lifting plate (7) that are located the lower part, first safety tongs includes first movable clamp piece (1), first support (2) and first lifting bent plate (3), second safety tongs includes second movable clamp piece (4), second support (5) and second lifting bent plate (6), the top at second support (5) is fixed in first support (2), and guide rail (9) of elevator are located the elongated slot that first support (2) and second support (5) are aligned, its characterized in that: the lifting plate (7) is connected with a first group of movable clamp blocks (1) of the first safety clamp, the first group of movable clamp blocks (1) are connected with a second group of movable clamp blocks (4) through connecting rods (10), the top of each connecting rod (10) is connected with a first lifting bending plate (3) on the first safety clamp, the bottom of each connecting rod is connected with a second lifting bending plate (6) of the second safety clamp, and a first spring (15) and a second spring (8) are sleeved outside each connecting rod (10); the top of the first spring (15) is propped against the bottom surface of the second lifting bending plate (6), and the bottom of the first spring is propped against the first positioning block (13) on the connecting rod (10); the bottom of the second spring (8) is propped against the bottom surface of the second lifting bending plate (6), and the top of the second spring is propped against the second positioning block (14) on the connecting rod (10).
2. A composite elevator safety gear according to claim 1, characterized in that: in an initial state, the second spring (8) presses the second lifting bending plate (6) downwards, and simultaneously the second lifting bending plate (6) presses and compresses the first spring (15) downwards.
3. A composite elevator safety gear according to claim 1, characterized in that: in a triggering state, the lifting plate (7) pulls the first group of movable clamp blocks (1) upwards, and the first group of movable clamp blocks (1) pulls the second group of movable clamp blocks (4) upwards through the connecting rod (10) and extrudes the second springs (8) until the first group of movable clamp blocks (1) and the second group of movable clamp blocks (4) are braked with the guide rail (9).
4. A composite elevator safety gear according to claim 1, characterized in that: in a reset state, the second spring (8) resets and pushes the first group of movable clamp blocks (1), the connecting rod (10) and the second group of movable clamp blocks (4) upwards.
5. A composite elevator safety gear according to claim 1, characterized in that: the fixing device is characterized in that a fixing plate (11) is arranged between the first bracket (2) and the second bracket (5), a through hole is formed in the middle of the fixing plate (11), a guide sleeve (12) is arranged in the through hole, and the connecting rod (10) movably penetrates through the guide sleeve (12).
6. A composite elevator safety gear according to claim 1, characterized in that: the top of the connecting rod (10) is a screw rod and penetrates through a hole in the first lifting bending plate (3), and then the first lifting bending plate (3) and the top of the connecting rod (10) are regulated by locking through upper and lower bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320487264.9U CN219792074U (en) | 2023-03-08 | 2023-03-08 | Composite elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320487264.9U CN219792074U (en) | 2023-03-08 | 2023-03-08 | Composite elevator safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219792074U true CN219792074U (en) | 2023-10-03 |
Family
ID=88176375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320487264.9U Active CN219792074U (en) | 2023-03-08 | 2023-03-08 | Composite elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219792074U (en) |
-
2023
- 2023-03-08 CN CN202320487264.9U patent/CN219792074U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |