CN222877409U - Safety tongs linkage lifting mechanism - Google Patents
Safety tongs linkage lifting mechanism Download PDFInfo
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- CN222877409U CN222877409U CN202421951861.3U CN202421951861U CN222877409U CN 222877409 U CN222877409 U CN 222877409U CN 202421951861 U CN202421951861 U CN 202421951861U CN 222877409 U CN222877409 U CN 222877409U
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- plate
- safety tongs
- tongs
- safety
- lifting mechanism
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Abstract
The utility model discloses a safety tongs linkage lifting mechanism which comprises two groups of safety tongs (1), two groups of mounting seats (3) and a transmission shaft (2) connected between the two groups of mounting seats (3), wherein an elastic device is arranged on a vertical plate (7), one end of the elastic device is propped against one end of the safety tongs (1) and provides elastic force towards a floating plate (8), the other end of the safety tongs (1) is connected with the floating plate (8), and in a braking state, a movable tongs block moves upwards and pushes the safety tongs (1) to enable a fixed tongs block and a movable tongs block to be clung to an elevator guide rail (11) to stop. The mechanism enables the safety tongs to be in a dynamic balance state, so that a space for moving is reserved during braking, the movable clamp blocks and the fixed clamp blocks of the safety tongs can clamp the elevator guide rail rapidly, and the spring device and the safety tongs are in an integrated structure, so that later installation and debugging are facilitated.
Description
Technical Field
The utility model relates to the technical field of elevator parts, in particular to a safety gear linkage lifting mechanism.
Background
The floating type installation mechanism of the safety tongs comprises a guide rail, an elevating car and the safety tongs, wherein the elevating car is slidably installed on the guide rail, the floating type installation mechanism is characterized by further comprising supporting guide blocks, positioning guide wheels, spring seats and pre-pressing springs, wherein a tong seat of the safety tongs is movably installed on a first side wall of the elevating car in a penetrating mode, two guide openings are respectively formed in the left edge of the inner side part and the right edge of the inner side part of the tong seat of the safety tongs, the number of the supporting guide blocks is four, the four supporting guide blocks vertically penetrate through and are fixed on a first side wall of the elevating car, the four supporting guide blocks penetrate through the four guide openings one by one, the number of the positioning guide wheels is two, an axle of the first positioning guide wheels simultaneously penetrates through and is fixed on the upper edge of the inner side part and the upper edge of the outer side part of the tong seat of the safety tongs, the axle of the second positioning guide wheels simultaneously penetrates through and is fixed on the lower edge of the inner side part of the tong seat of the safety tongs, the wheel faces of the two positioning guide wheels are respectively arranged on the guide rail, the four supporting guide blocks are vertically penetrated and are vertically pressed with the front end faces of the two side walls of the two pre-pressing springs of the safety tongs, and the two end faces of the pre-pressing springs are vertically opposite to the first side walls of the elevating car and are vertically opposite to the two pre-pressing springs. The floating installation mechanism of the safety tongs with the structure has the following defects that as the head ends of the two pre-pressing springs are fixed with the inner surface of the second side wall of the lifting car, the safety tongs can be assembled only in site when being lifted and pulled, and the safety tongs also need to be debugged, thereby bringing inconvenience to actual installation.
The floating elevator safety tongs comprise a mounting frame fixedly mounted at the position of an elevator car corresponding to a car guide rail and a supporting frame located on the car guide rail, wherein the supporting frame is movably connected with the mounting frame, a first guide rail and a second guide rail are fixedly mounted at two sides of the supporting frame, corresponding to the car guide rail, of the supporting frame respectively, a first wedge block and a second wedge block are slidably mounted at the inner parts of the first guide rail and the second guide rail respectively, a connecting plate is fixedly mounted at one side of the mounting frame, a pull rod used for being connected with a speed limiter wire rope to pull the second wedge block is hinged between the second wedge block and the connecting plate, a plug pin connected with the speed limiter wire rope is inserted onto the pull rod, a safety switch rotating along with the pull rod is mounted on the connecting plate, and the second wedge block slides on the second guide rail to be close to or far away from the car guide rail under the driving of the pull rod, and is matched with the first wedge block to clamp or release the car guide rail. The middle position of one surface of the mounting frame, which is far away from the supporting frame, is welded with a baffle plate, the supporting frame is connected with the mounting frame through countersunk bolts, the positions of the two sides of the mounting frame, which correspond to the baffle plate, are respectively provided with a perforation, the countersunk bolts penetrate through the perforations and are in threaded connection with the supporting frame, the perforations are long-strip-shaped, and the countersunk bolts can move in the perforations to be close to or far away from the baffle plate. The novel anti-theft device is characterized in that at least one side of the partition plate is provided with an L-shaped base plate, one vertical surface of the L-shaped base plate is located on the mounting frame, the countersunk bolt penetrates through the L-shaped base plate and is correspondingly located on the vertical surface of the mounting frame, a connecting piece is arranged between the other vertical surface of the L-shaped base plate and the partition plate and is movably connected with the L-shaped base plate and the partition plate, a first reset spring is sleeved on the outer surface wall of the connecting piece, and two ends of the first reset spring are fixedly connected with the L-shaped base plate and the partition plate respectively. The floatable elevator safety tongs with the structure have the defects that as the outer surface wall of the connecting piece is sleeved with the first reset spring, two ends of the first reset spring are respectively fixedly connected with the L-shaped base plate and the partition plate, the first reset spring cannot be adjusted according to different safety tongs, the setting can be carried out only before delivery, and inconvenience is brought to actual installation and adjustment.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a safety tongs linkage lifting mechanism which enables a safety tongs to be in a dynamic balance state, so that a moving space is provided during braking, a movable tongs block and a fixed tongs block of the safety tongs can clamp an elevator guide rail rapidly, and a spring device and the safety tongs are in an integrated structure, so that later installation and debugging are facilitated.
The technical scheme includes that the safety tongs linkage lifting mechanism comprises two groups of safety tongs, two groups of installation seats and a transmission shaft connected between the two groups of installation seats, wherein each group of safety tongs is respectively installed on the corresponding installation seat, the installation seat comprises a first installation plate, a top plate, guide shoe installation plates and a vertical plate, the top plate is arranged at the top of the first installation plate, the guide shoe installation plates are arranged at the bottom of the first installation plate, the safety tongs are installed on the front face of the first installation plate, the vertical plate is located on the back face of the first installation plate, each end of the transmission shaft is connected to one side of the first installation plate and is connected with a movable tongs block of the safety tongs through a floating plate, a plurality of long holes for the safety tongs to move along the direction perpendicular to an elevator guide rail are formed in the first installation plate, the plurality of guide rods penetrate through the long holes of the first installation plate respectively, each guide rod freely slides in the corresponding long holes, an elastic device is arranged on the vertical plate, one end of the elastic device abuts against one end of the safety tongs and is located on the other end of the floating tongs and is located on the movable tongs block, the elastic device is located between the two movable tongs and the movable tongs block and the elevator guide rail, and the elastic tongs are located at the same position and is tightly attached to the movable tongs block.
The elastic device comprises a movable plate, a first screw rod and a first spring, wherein the movable plate is positioned on the back surface of the first mounting plate and is fixed with the safety tongs, the first screw rod penetrates through the movable plate, the first spring is sleeved on the screw rod penetrating through the movable plate, the tail end of the first screw rod penetrates through the vertical plate, the tail end of the first screw rod is provided with a first positioning end and a second positioning end, the first positioning end and the second positioning end are positioned on two sides of the vertical plate, and the distance between the first positioning end and the second positioning end is larger than the thickness of the vertical plate.
The first positioning end and the second positioning end are formed by tightly tightening and positioning two bolts.
One end of the first spring is propped against the bending plate of the movable plate, and the other end of the first spring is propped against the first positioning end, so that elastic force of the safety tongs in the direction of the floating plate is provided, and spaces are arranged among the first positioning end, the second positioning end and the vertical plate in an initial state.
The bottom of the safety tongs is provided with a supporting plate, the supporting plate is fixed with the bottom of a fixed wedge block of the safety tongs, the supporting plate is provided with an upward second screw rod, the second screw rod is provided with a second spring, the top of the second spring is propped against the bottom of the supporting plate, the bottom of the second spring is propped against the head of the second screw rod, and the top of the second screw rod penetrates through the supporting plate, so that the height position between the fixed clamp block and the safety tongs body is adjusted.
The floating plate adopts a length telescopic structure and is fixedly connected through bolts after telescopic operation.
The middle part of the floating plate of one group of safety tongs is provided with a connecting plate which is arranged up and down, the top and the bottom of the connecting plate are respectively provided with a lantern ring, the floating plate provided with the connecting plate is driven mainly, then the other floating plate is driven passively, the lantern ring is pulled, and therefore the floating plate is driven actively, and the other floating plate driven passively is driven through a transmission shaft.
The transmission shaft adopts a length telescopic structure and is a rectangular pipe, and two surfaces of the rectangle are connected and locked by bolts.
The end portion of the transmission shaft penetrating through the first mounting plate is provided with a trigger rod, the trigger rod is arranged outwards along the radial direction of the transmission shaft, the first mounting plate is provided with a switch, and the transmission shaft rotates to drive the trigger rod to swing and trigger the switch.
After adopting the structure, the utility model has the following advantages:
1. The safety tongs comprise a first mounting plate, a second mounting plate, a plurality of long holes for the safety tongs to move along the direction perpendicular to the elevator guide rail, a plurality of guide rods arranged on the back surface of the safety tongs, wherein the guide rods penetrate through the long holes of the first mounting plate respectively, each guide rod freely slides in a corresponding long hole, an elastic device is arranged on the vertical plate, one end of the elastic device abuts against one end of the safety tongs and provides elastic force towards a floating plate, the other end of the safety tongs is connected with the floating plate, namely, the elastic device is directly mounted with the first mounting plate and the safety tongs to form a whole, and therefore the safety tongs linkage lifting mechanism can be assembled before leaving a factory, and later actual installation is facilitated.
2. The elastic device comprises a movable plate, a first screw rod and a first spring, wherein the movable plate is positioned on the back surface of the first mounting plate and is fixed with the safety tongs, the first screw rod penetrates through the movable plate, the first spring is sleeved on the screw rod penetrating through the movable plate, the tail end of the first screw rod penetrates through the vertical plate, the tail end of the first screw rod is provided with a first positioning end and a second positioning end, the first positioning end and the second positioning end are positioned on two sides of the vertical plate, the distance between the first positioning end and the second positioning end is larger than the thickness of the vertical plate, and the positions of the first positioning end and the second positioning end on the first screw rod can be adjusted according to the actual installation of the safety tongs linkage lifting mechanism, so that subsequent debugging is facilitated.
3. The safety tongs are positioned at any position through the elastic force of the elastic device in the initial state, the elevator guide rail is positioned between two tongs blocks of the safety tongs, the movable tongs blocks move upwards in the braking state and push the safety tongs to enable the fixed tongs blocks and the movable tongs blocks to be tightly attached to the elevator guide rail for braking, and the braking effect is improved.
Drawings
Fig. 1 is a schematic perspective view of a safety gear linkage lifting mechanism of the present utility model.
Fig. 2 is a split schematic view of a set of safety tongs of the present utility model.
Fig. 3 is a schematic view of a set of safety tongs of the present utility model.
Fig. 4 is a schematic rear view of a set of safety tongs of the present utility model.
Fig. 5 is a schematic rear exploded view of a set of safety tongs of the present utility model.
Fig. 6 is a schematic front exploded view of a set of safety tongs of the present utility model.
The safety tongs are shown as 1, safety tongs, 2, transmission shafts, 3, installation seats, 4, first installation plates, 5, top plates, 6, guide shoe installation plates, 7, vertical plates, 8, floating plates, 9, guide rods, 10, long holes, 11, elevator guide rails, 12, movable plates, 13, first screw rods, 14, first springs, 15, first positioning ends, 16, second positioning ends, 17, supporting plates, 18, second screw rods, 19, second springs, 20, connecting plates, 21, lantern rings, 22, trigger rods, 23 and switches.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the safety gear linkage lifting mechanism of the utility model comprises two groups of safety gears 1, two groups of mounting seats 3 and a transmission shaft 2 connected between the two groups of mounting seats 3.
As shown in fig. 1, each group of safety tongs 1 is respectively mounted on a corresponding mounting seat 3, the mounting seat 3 comprises a first mounting plate 4, a top plate 5, a guide shoe mounting plate 6 and a vertical plate 7, the top plate 5 is arranged at the top of the first mounting plate 4, the guide shoe mounting plate 6 is arranged at the bottom of the first mounting plate 4, the safety tongs 1 are mounted on the front surface of the first mounting plate 4, and the vertical plate 7 is positioned on the back surface of the first mounting plate 4.
Each end of the transmission shaft 2 is connected to one side of the first mounting plate 4 and connected with a movable jaw of the safety tongs 1 through a floating plate 8, and both ends of the transmission shaft 2 penetrate through the first mounting plate 4 and extend out a certain distance. The transmission shaft 2 adopts a length telescopic structure and is a rectangular pipe, and two surfaces of the rectangle are connected and locked by bolts. The transmission shaft 2 can adopt two sections or three sections and other structures to realize the expansion and contraction of the inner pipe and the outer pipe.
As shown in fig. 2, the first mounting plate 4 is provided with a plurality of long holes 10 for moving the safety gear 1 along the direction perpendicular to the elevator guide rail 11, which is a long waist hole, and provides space and guide for sliding the safety gear. The back of the safety tongs 1 is provided with a plurality of guide rods 9, the guide rods 9 respectively penetrate through long holes 10 of the first mounting plate 4, and each guide rod 9 freely slides in a corresponding long hole 10. The present embodiment employs two sets of upper and lower elongated holes 10, each set being two elongated holes 10 located on a straight line.
As shown in fig. 4, the vertical plate 7 is provided with an elastic device, one end of the elastic device is propped against one end of the safety gear 1 and provides elastic force towards the floating plate 8, the other end of the safety gear 1 is connected with the floating plate 8, the safety gear 1 is positioned at any position through the elastic force of the elastic device in an initial state, the elevator guide rail 11 is positioned between two clamp blocks of the safety gear 1, and the movable clamp block moves upwards in a braking state and pushes the safety gear 1 to enable the fixed clamp block and the movable clamp block to be clung to the elevator guide rail 11 so as to stop.
The elastic device comprises a movable plate 12, a first screw rod 13 and a first spring 14, wherein the movable plate 12 is positioned on the back surface of the first mounting plate 4 and is fixed with the safety tongs 1, the first screw rod 13 penetrates through the movable plate 12, the first spring 14 is sleeved on the screw rod penetrating through the movable plate 12, the tail end of the first screw rod 13 penetrates through the vertical plate 7, the tail end of the first screw rod 13 is provided with a first positioning end 15 and a second positioning end 16, the first positioning end 15 and the second positioning end 16 are positioned on two sides of the vertical plate 7, and the distance between the first positioning end 15 and the second positioning end 16 is larger than the thickness of the vertical plate 7. The first positioning end 15 and the second positioning end 16 are two bolts tightly screwed and positioned, and the distance between the first positioning end 15 and the second positioning end 16 can be adjusted.
One end of the first spring 14 abuts against the bending plate of the movable plate 12, the other end abuts against the first positioning end 15, and the movable plate 12 is shaped so as to provide elastic force of the safety gear 1 towards the floating plate 8, and in an initial state, spaces are formed among the first positioning end 15, the second positioning end 16 and the vertical plate 7.
As shown in fig. 6, the bottom of the safety gear 1 is provided with a supporting plate 17, the supporting plate 17 is fixed with the bottom of the fixing block of the safety gear 1, the supporting plate 17 is provided with an upward second screw 18, the second screw 18 is provided with a second spring 19, the top of the second spring 19 is propped against the bottom of the supporting plate 17, the bottom is propped against the head of the second screw 18, and the top of the second screw 18 passes through the supporting plate 17, so that the height position between the fixing block and the body of the safety gear 1 is adjusted.
The floating plate 8 adopts a length telescopic structure, is fixed through bolt connection after telescopic, is overlapped in the middle of the floating plate, is provided with aligned long holes, and is internally provided with two bolt and nut assemblies for fixing.
As shown in fig. 6, the middle part of the floating plates 8 of the safety tongs 1 is provided with a connecting plate 20 arranged up and down, the top and the bottom of the connecting plate 20 are respectively provided with a lantern ring 21, the floating plate 8 provided with the connecting plate 20 is driven mainly, the other floating plate 8 is driven passively, and the lantern ring 21 is pulled to drive the active driving floating plate 8, and then the other passive driving floating plate 8 is driven by the transmission shaft 2.
As shown in fig. 2, the end of the transmission shaft 2 penetrating through the first mounting plate 4 is provided with a trigger lever 22, the trigger lever 22 is arranged outwards along the radial direction of the transmission shaft 2, the first mounting plate 4 is provided with a switch 23, and the rotation of the transmission shaft 2 drives the trigger lever 22 to swing and trigger the switch 23. The switch 23 communicates with the controller and signals the controller when triggered.
Claims (9)
1. A safety tongs linkage lifting mechanism comprises two groups of safety tongs (1) and two groups of mounting seats (3), and a transmission shaft (2) connected between the two groups of mounting seats (3), wherein each group of safety tongs (1) is respectively mounted on the corresponding mounting seat (3), each mounting seat (3) comprises a first mounting plate (4), a top plate (5), a guide shoe mounting plate (6) and a vertical plate (7), the top plate (5) is arranged at the top of the first mounting plate (4), the guide shoe mounting plate (6) is arranged at the bottom of the first mounting plate (4), the safety tongs (1) are mounted on the front surface of the first mounting plate (4), the vertical plate (7) is positioned on the back surface of the first mounting plate (4), each end of the transmission shaft (2) is connected to one side of the first mounting plate (4) and is connected with a movable tongs block of the safety tongs (1) through a floating plate (8), a plurality of long holes (10) for the safety tongs (1) to move along the direction of a vertical guide rail (11) are formed in the first mounting plate (4), the guide rails (9) are arranged in the back surface of the first mounting plate (4) and each guide rod (9) is correspondingly provided with a plurality of guide rods (9), the elevator safety device is characterized in that an elastic device is arranged on the vertical plate (7), one end of the elastic device is propped against one end of the safety tongs (1) and provides elastic force towards the floating plate (8), the other end of the safety tongs (1) is connected with the floating plate (8), the safety tongs (1) are positioned at any position through the elastic force of the elastic device in an initial state, an elevator guide rail (11) is positioned between two tongs blocks of the safety tongs (1), and the movable tongs blocks move upwards in a braking state and push the safety tongs (1) to enable the fixed tongs blocks and the movable tongs blocks to be clung to the elevator guide rail (11) so as to stop.
2. The safety tongs linkage lifting mechanism according to claim 1, wherein the elastic device comprises a movable plate (12), a first screw rod (13) and a first spring (14), the movable plate (12) is located on the back of the first mounting plate (4) and is fixed with the safety tongs (1), the first screw rod (13) penetrates through the movable plate (12), the first spring (14) is sleeved on the screw rod penetrating through the movable plate (12), the tail end of the first screw rod (13) penetrates through the vertical plate (7) and is provided with a first locating end (15) and a second locating end (16), the first locating end (15) and the second locating end (16) are located on two sides of the vertical plate (7), and the distance between the first locating end (15) and the second locating end (16) is larger than the thickness of the vertical plate (7).
3. The safety tongs linkage lifting mechanism according to claim 2, wherein the first positioning end (15) and the second positioning end (16) are two bolts tightly screwed and positioned.
4. A safety gear linkage lifting mechanism according to claim 2 or 3, wherein one end of the first spring (14) is abutted against a bending plate of the movable plate (12), and the other end is abutted against the first positioning end (15), so that elastic force of the safety gear (1) towards the floating plate (8) is provided, and in an initial state, spaces are formed among the first positioning end (15), the second positioning end (16) and the vertical plate (7).
5. The safety gear linkage lifting mechanism according to claim 1, wherein a supporting plate (17) is arranged at the bottom of the safety gear (1), the supporting plate (17) is fixed with the bottom of a fixing block of the safety gear (1), a second upward screw rod (18) is arranged on the supporting plate (17), a second spring (19) is arranged on the second screw rod (18), the top of the second spring (19) is propped against the bottom of the supporting plate (17), the bottom of the second spring is propped against the head of the second screw rod (18), and the top of the second screw rod (18) penetrates through the supporting plate (17) so as to adjust the height position between the fixing block and the body of the safety gear (1).
6. The safety tongs linkage lifting mechanism according to claim 1, wherein the floating plate (8) adopts a length telescopic structure and is fixedly connected through bolts after telescopic operation.
7. The safety tongs linkage lifting mechanism according to claim 1, wherein the middle part of the floating plates (8) of one group of safety tongs (1) is provided with connecting plates (20) which are arranged up and down, the top and the bottom of each connecting plate (20) are respectively provided with a lantern ring (21), the floating plates (8) provided with the connecting plates (20) are mainly driven, the other floating plates (8) are driven passively, and the lantern rings (21) are pulled to drive the active driving floating plates (8), and then the transmission shafts (2) are used for driving the other passively driven floating plates (8).
8. The safety tongs linkage lifting mechanism according to claim 1 or 7 is characterized in that the transmission shaft (2) adopts a length telescopic structure and is a rectangular pipe, and two surfaces of the rectangle are locked by adopting bolt connection.
9. The safety tongs linkage lifting mechanism according to claim 8, wherein a trigger rod (22) is arranged at the end part of the transmission shaft (2) penetrating through the first mounting plate (4), the trigger rod (22) is arranged outwards along the radial direction of the transmission shaft (2), the first mounting plate (4) is provided with a switch (23), and the rotation of the transmission shaft (2) drives the trigger rod (22) to swing and triggers the switch (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421951861.3U CN222877409U (en) | 2024-08-13 | 2024-08-13 | Safety tongs linkage lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421951861.3U CN222877409U (en) | 2024-08-13 | 2024-08-13 | Safety tongs linkage lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222877409U true CN222877409U (en) | 2025-05-16 |
Family
ID=95679328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421951861.3U Active CN222877409U (en) | 2024-08-13 | 2024-08-13 | Safety tongs linkage lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222877409U (en) |
-
2024
- 2024-08-13 CN CN202421951861.3U patent/CN222877409U/en active Active
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