Floating linkage mechanism of elevator
By adopting multiple sets of parallel elastic devices and positioning devices in the elevator floating linkage mechanism, the problems of insufficient stability and uneven braking in the prior art are solved, and more stable and accurate safety pliers are realized, which improves the elevator's Braking effect and safety.
Patent Information
- Application Number
- CN202421328325.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The existing elevator floating linkage mechanism has problems such as insufficient stability, uneven braking and risk of jamming during installation and use.
Multiple groups of parallel elastic devices and positioning devices are adopted to ensure the stability and direction of the safety clamp when floating, and at the same time, the guide device is added to the safety clamp fixing seat to improve the stability and accuracy of sliding.
Through the cooperation of multiple groups of elastic devices and positioning devices, the safety clamps are more balanced and stable sliding, reducing the risk of jamming, and improving the braking effect and safety of the elevator.
Smart Images
Figure CN222454191U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator parts, in particular to a floating linkage mechanism of an elevator. Background Art
[0002] At present, there is disclosed an elliptical wedge up and down brake safety clamp and linkage mechanism, which includes a mounting seat, a safety clamp, a guide rail, a lifting handle, a spring, a linkage rod and a pin shaft. The safety clamp is fixedly installed on the elevator car or the lower beam, the safety clamp is installed on the mounting seat, the guide rail passes through the safety clamp, and lifting handles are installed at both ends of the linkage rod. The spring on the left side is installed on the left end of the linkage rod and the left end of the spring is pressed against the left mounting seat, the spring on the right side is installed on the right end of the linkage rod and the right end of the spring is pressed against the right mounting seat, and the pin shaft is installed in the safety clamp. The above-mentioned safety clamp consists of a safety clamp body, a slider, an elliptical wedge, a right limit bolt, a first linkage, a rotating shaft, a two-way hitting plate, a safety switch, a second linkage, a wedge rotating shaft, a rectangular wedge, a disc spring and a left limit bolt. The safety switch is fixedly installed on the safety clamp body, the two-way hitting plate is installed on the rotating shaft, the first linkage is installed on the safety clamp body through the rotating shaft, the second linkage is connected to the first linkage through a pin shaft, the second linkage is installed on the slider through the wedge rotating shaft, the wedge rotating shaft is installed on the elliptical wedge through a key connection, the right limit bolt is fixedly installed on the right side of the groove on the safety clamp body, the left limit bolt is fixedly installed on the left side of the groove on the safety clamp body, the slider is installed in the groove on the safety clamp body, the rectangular wedge is installed in the mounting hole on the safety clamp body, the disc spring is installed in the groove on the safety clamp body and the disc spring is pressed against the rectangular wedge.
[0003] The above-mentioned elliptical wedge up and down braking safety clamp and linkage mechanism can realize a pair of safety clamps with both up braking and down braking. However, there are still the following shortcomings: since the safety clamp is fixedly installed, it is necessary to accurately locate the elevator guide rail at the center of the safety clamp during installation so as to meet the braking requirements.
[0004] At present, there is also an automatic alignment structure, for example, a floating safety clamp installation structure is disclosed, including a straight beam and a safety clamp, a guide shoe is provided under the safety clamp, a safety clamp installation plate and a safety clamp are provided on both sides of the straight beam, and a waist groove is provided on the connecting surface between the safety clamp installation plate and the safety clamp. A conventional safety clamp installation structure is connected to the lower beam through a base structure, while the other is fixed to the side of the lower beam through a thin safety clamp through a round hole fastener. However, the basic cost of the safety clamp structure with a base is relatively high, and an extra safety clamp is installed at the bottom end of the lower beam, compressing the space of the pit. The safety clamp fixed to the side of the lower beam through a round hole fastener requires a greater elasticity of the guide shoe due to the large gap between the safety clamp and the guide rail, so the guide shoe cost is relatively high. This patent fastens and fixes the safety clamp and the straight beam reinforcement plate on one side of the straight beam, and the safety clamp pad and the safety clamp installation plate on the other side of the straight beam together through fasteners and safety clamp structure bosses. The safety clamp passes through the empty grooves on the straight beam reinforcement plate and the straight beam and is fixed to the waist hole on the safety clamp installation plate. When the movable wedge of the safety clamp is lifted up, friction is generated between the wedge and the guide rail. Since the two sides of the safety clamp are fixed by the limit bolts passing through the straight beam and the straight beam reinforcement plate, the safety clamp remains fixed, and the safety clamp is fixed to the waist-shaped hole on the safety clamp mounting plate. Therefore, the friction will cause the entire safety clamp mounting structure to slide to the right in the waist-shaped groove through the safety clamp structure boss until the safety clamp can smoothly clamp the guide rail to stop the car. Due to the existence of the waist-shaped groove, the safety clamp mounting groove of this patent does not require an additional mounting base, or the high-cost strong elastic guide shoe can also make the safety clamp float and adapt to the guide rail to achieve the purpose of stopping the car.
[0005] The safety clamps of the floating safety clamp installation structure of the above structure are positioned with compression springs and limit bolts on both sides, so that the safety clamps can float, but the compression springs of this structure cannot achieve up and down balance, which may cause the safety clamps to not slide in a straight line, so that the movable clamp block and the fixed clamp block may shake before they are completely stopped by the elevator guide rail, and there are certain braking risks. The safety clamps only rely on fasteners and bumps to guide and limit, and the straight beam reinforcement plate lacks the guidance and positioning of the safety clamps, resulting in the unstable floating base and the possibility of jamming. Utility Model Content
[0006] The technical problem to be solved by the utility model is to provide a floating linkage mechanism of an elevator which adopts multiple sets of elastic devices and positioning devices to make the floating more stable, and further adds a guide device on a fixed seat for installing the safety clamp to make the sliding of the safety clamp more stable and with better directionality.
[0007] The technical solution of the utility model is to provide a floating linkage mechanism of an elevator with the following structure, including brackets installed at both ends of a pipe fitting, each bracket is provided with a safety clamp fixing seat, and each safety clamp fixing seat is provided with a safety clamp, and both ends of the pipe fitting are respectively connected with a lifting plate, and the other end of the lifting plate is connected to the safety clamp, and the pipe fitting and the lifting plate are provided with a torsion spring, and the rotation of the pipe fitting triggers the safety clamp to work through the lifting plate; it is characterized in that: the safety clamp is slidably connected to the safety clamp fixing seat in a horizontal direction, and one end of the safety clamp provided with a movable clamp block is provided with more than two groups of parallel elastic devices, and the elastic device and the safety clamp are in a horizontally abutting state, and the other end of the safety clamp is provided with a horizontal direction and more than two groups of parallel positioning devices, the elastic device pushes the safety clamp to abut against the positioning device, and the safety clamp fixing seat is provided with a guide device for guiding the horizontal movement of the safety clamp.
[0008] Each set of elastic devices includes springs and first screw rods with the same number as the springs. The tail end of each first screw rod horizontally passes through the side wall of the safety clamp fixing seat and faces the side wall of the safety clamp and is fixed to the side wall of the safety clamp fixing seat by two nuts. Each spring is sleeved on a first screw rod, one end of which is positioned on the first screw rod by a nut, and the other end is against the side wall of the safety clamp. A spacing is provided between the tail end of each first screw rod and the side wall of the safety clamp.
[0009] The safety clamp is slidably connected to the safety clamp fixing seat in the horizontal direction, which means that two upper and lower rows of long holes are provided on the body of the safety clamp fixing seat, and two rows of second bolts are provided on the safety clamp, and the second bolts in each row are movable through a corresponding long hole in the corresponding row; when the safety clamp slides, all the second bolts are driven to slide in the corresponding long holes of the safety clamp fixing seat.
[0010] The guide device includes a first positioning block and a second positioning block, a distance is provided between the first positioning block and the second positioning block, the top of the safety clamp is in contact with the bottom plane of the first positioning block, and the bottom is in contact with the top plane of the second positioning block, and the bottom plane of the first positioning block is parallel to the top plane of the second positioning block.
[0011] Each set of positioning devices includes a second screw rod, each second screw rod is fixed to the side wall of the safety clamp fixing seat by multiple nuts and the tail end is against the side wall of the safety clamp, and the axis of the first screw rod at the same height and the axis of the second screw rod at the same height are located on the same straight line.
[0012] The two ends of the pipe fitting are respectively connected with a pulling plate, which means that the end of the pipe fitting is provided with a connecting plate, the connecting plate is vertically fixed to the pipe fitting, the pulling plate overlaps with the connecting plate and slides along the length direction, and is fixed in place by multiple bolts.
[0013] After adopting the above structure, the utility model has the following advantages: 1. Since the safety clamp is connected to the safety clamp fixing seat by sliding in the horizontal direction, one end of the safety clamp with the movable clamp block is provided with more than two sets of parallel elastic devices, and the elastic device and the safety clamp are in a horizontally opposed state. Through multiple sets of elastic devices, it is ensured that the safety clamp is subjected to more balanced force, and the movable clamp block can be quickly attached to the elevator guide rail and stopped when stopping. 2. Since the other end of the safety clamp is provided with more than two sets of horizontal and parallel positioning devices, the elastic device pushes the safety clamp and the positioning device to be opposed. Through multiple sets of positioning devices, the support and positioning effect of the safety clamp is more balanced, and it can provide better support when the elastic device is reset to avoid the safety clamp from tilting. 3. Since the safety clamp fixing seat is provided with a guide device for guiding the horizontal movement of the safety clamp, the sliding of the safety clamp is further guided, and a plane guide is adopted, which has better directionality.
[0014] As an improvement, each group of elastic devices includes a spring and a first screw rod whose number is the same as that of the springs. The tail end of each first screw rod horizontally passes through the side wall of the safety clamp fixing seat and faces the side wall of the safety clamp and is fixed to the side wall of the safety clamp fixing seat with two nuts. Each spring is sleeved on a first screw rod, one end of which is positioned on the first screw rod with a nut, and the other end is against the side wall of the safety clamp. A spacing is provided between the tail end of each first screw rod and the side wall of the safety clamp. The first bolt provides support for installing the spring, thereby adjusting the preload force of the spring, which brings convenience to the actual installation.
[0015] As an improvement, the safety clamp is slidably connected to the safety clamp fixing seat in the horizontal direction, which means that two upper and lower rows of long holes are provided on the body of the safety clamp fixing seat, and two rows of second bolts are provided on the safety clamp, and the second bolts in each row are movable through a corresponding long hole in the corresponding row; when the safety clamp slides, all the second bolts are driven to slide in the corresponding long holes of the safety clamp fixing seat, so that the safety clamp can not only be installed on the safety clamp fixing seat, but also provide a guarantee for linear sliding.
[0016] As an improvement, the guiding device comprises a first positioning block and a second positioning block, a distance being provided between the first positioning block and the second positioning block, the top of the safety clamp being in contact with the bottom plane of the first positioning block, the bottom being in contact with the top plane of the second positioning block, the bottom plane of the first positioning block being parallel to the top plane of the second positioning block, thereby providing guidance for the sliding of the safety clamp, ensuring linear sliding, and further reducing the risk of getting stuck.
[0017] As an improvement, each set of positioning devices includes a second screw, each second screw is fixed to the side wall of the safety clamp fixing seat by a plurality of nuts and the tail end is against the side wall of the safety clamp, the axis of the first screw at the same height and the axis of the second screw at the same height are located on the same straight line, and positioning devices are added to the top, bottom and middle of the side of the safety clamp so that the entire plane of the side is supported.
[0018] As an improvement, the two ends of the pipe fitting are respectively connected with lifting plates, which means that the end of the pipe fitting is provided with a connecting plate, the connecting plate is vertically fixed to the pipe fitting, the lifting plate overlaps with the connecting plate and slides along the length direction, and is fixed in place by multiple bolts. The distance between the lifting plate and the pipe fitting can be adjusted, which brings convenience to actual installation and debugging. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional schematic diagram of the floating linkage mechanism of the elevator of the utility model.
[0020] Figure 2 The utility model is a schematic diagram of the safety clamp split of the floating linkage mechanism of the elevator.
[0021] Figure 3 It is a schematic diagram of the safety clamp fixing seat of the elevator of the utility model.
[0022] Figure 4 It is a schematic diagram of the back side of the floating linkage mechanism of the elevator of the utility model.
[0023] Figure 5 It is a front view schematic diagram of the floating linkage mechanism of the utility model elevator.
[0024] Figure 6 It is a top view schematic diagram of the floating linkage mechanism of the elevator of the utility model.
[0025] As shown in the figure:
[0026] 1. Pipe fitting, 2. Bracket, 3. Safety clamp fixing seat, 4. Safety clamp, 5. Lifting plate, 6. Torsion spring, 7. Spring, 8. First screw rod, 9. Long hole, 10. Second bolt, 11. First positioning block, 12. Second positioning block, 13. Second screw rod, 14. Connecting plate. DETAILED DESCRIPTION
[0027] The utility model will be further described below in conjunction with the accompanying drawings.
[0028] like Figure 1-6As shown, a floating linkage mechanism of an elevator of the utility model comprises brackets 2 installed at both ends of a pipe 1, and two brackets 2 are symmetrically arranged at both ends of the pipe 1. A safety clamp fixing seat 3 is provided on each bracket, and a safety clamp 4 is installed on each safety clamp fixing seat 3. Lifting plates 5 are respectively connected to both ends of the pipe 1, and the other end of the lifting plate 5 is connected to the safety clamp 4. Torsion springs 6 are provided on the pipe 1 and the lifting plate 5. When the pipe 1 rotates, the lifting plate 5 triggers the safety clamp 4 to work.
[0029] The safety clamp 4 is slidably connected to the safety clamp fixing seat 3 in the horizontal direction. One end of the safety clamp 4 with a movable clamp block is provided with two or more sets of parallel elastic devices, and the elastic devices and the safety clamp 4 are in a horizontal abutment state. The other end of the safety clamp 4 is provided with a horizontal and more than two sets of parallel positioning devices. The elastic device pushes the safety clamp 4 to abut against the positioning device. The safety clamp fixing seat 3 is provided with a guide device for guiding the horizontal movement of the safety clamp 4.
[0030] like Figure 2 and Figure 3 As shown, each group of elastic devices includes springs 7 and first screws 8 that are the same in number as the springs 7. In this embodiment, there are two springs 7 and two first screws 8, which are arranged in parallel, one at the top and the other at the bottom. The tail end of each first screw 8 horizontally passes through the side wall of the safety clamp fixing seat 3 and faces the side wall of the safety clamp 4 and is fixed to the side wall of the safety clamp fixing seat 3 with two nuts; each spring 7 is sleeved on a first screw 8, one end is positioned on the first screw 8 with a nut, and the other end is against the side wall of the safety clamp 4. The nut against the spring 7 can adjust the axial position of the spring, thereby adjusting the elastic force against the safety clamp. There is a gap between the tail end of each first screw 8 and the side wall of the safety clamp 4, that is, the tail end of the first screw 8 does not touch the side wall of the safety clamp 4, and only the spring 7 touches the side wall of the safety clamp 4.
[0031] like Figure 3 and Figure 4 As shown, the safety clamp 4 is slidably connected to the safety clamp fixing seat 3 in the horizontal direction, which means that the body of the safety clamp fixing seat 3 is provided with two rows of long holes 9, one in the upper row and the other in the lower row in this embodiment, which touch the side wall of the safety clamp 4 and are located in a straight line. The safety clamp 4 is provided with two rows of second bolts 10, and the second bolts 10 in each row are movable through a corresponding long hole 9 in the corresponding row; when the safety clamp 4 slides, it drives all the second bolts 10 to slide in the corresponding long holes 9 of the safety clamp fixing seat 3.
[0032] like Figure 3As shown, the guiding device includes a first positioning block 11 and a second positioning block 12, and a spacing is provided between the first positioning block 11 and the second positioning block 12. The top of the safety clamp 4 is fitted with the bottom plane of the first positioning block 11, and the bottom is fitted with the top plane of the second positioning block 12. The bottom plane of the first positioning block 11 is parallel to the top plane of the second positioning block 12. The first positioning block 11 and the second positioning block 12 are guided by the upper and lower planes, and the directivity and guidance are better.
[0033] like Figure 2 As shown, each set of positioning devices includes a second screw 13, each second screw 13 is fixed to the side wall of the safety clamp fixing seat 3 by a plurality of nuts and the tail end is against the side wall of the safety clamp 4, the axis of the first screw 8 at the same height and the axis of the second screw 13 at the same height are located on the same straight line, so that the safety clamp is subjected to the same force to avoid tilting.
[0034] like Figure 2 and Figure 4 As shown, the two ends of the pipe fitting 1 are respectively connected with the lifting plates 5, which means that the ends of the pipe fitting 1 are provided with connecting plates 14, the connecting plates 14 are vertically fixed to the pipe fitting 1, the lifting plates 5 overlap with the connecting plates 14 and slide along the length direction, and are fixed in place by multiple bolts. The pipe fitting 1 is connected to the connecting plates 14, and the connecting plates 14 are connected to the lifting plates 5.
Claims
1. A floating linkage mechanism of an elevator, comprising brackets (2) mounted at both ends of a pipe (1), each bracket being provided with a safety clamp fixing seat (3), each safety clamp fixing seat (3) being provided with a safety clamp (4), both ends of the pipe (1) being connected with lifting plates (5), the other end of the lifting plate (5) being connected with the safety clamp (4), a torsion spring (6) being provided on the pipe (1) and the lifting plate (5), and the rotation of the pipe (1) triggers the safety clamp (4) to work through the lifting plate (5); characterized in that: The safety clamp (4) is slidably connected to the safety clamp fixing seat (3) in the horizontal direction. One end of the safety clamp (4) on which the movable clamp block is installed is provided with two or more sets of parallel elastic devices, and the elastic devices and the safety clamp (4) are in a horizontal abutment state. The other end of the safety clamp (4) is provided with two or more sets of horizontal parallel positioning devices, and the elastic devices push the safety clamp (4) to abut against the positioning devices. The safety clamp fixing seat (3) is provided with a guide device for guiding the horizontal movement of the safety clamp (4).
2. The floating linkage mechanism of an elevator according to claim 1, characterized in that: Each set of elastic devices comprises a spring (7) and a first screw rod (8) having the same number as the springs (7); the tail end of each first screw rod (8) horizontally passes through the side wall of the safety clamp fixing seat (3) and faces the side wall of the safety clamp (4) and is fixed to the side wall of the safety clamp fixing seat (3) by two nuts; each spring (7) is sleeved on a first screw rod (8), one end of which is positioned on the first screw rod (8) by a nut and the other end of which is against the side wall of the safety clamp (4); and a distance is provided between the tail end of each first screw rod (8) and the side wall of the safety clamp (4).
3. The floating linkage mechanism of an elevator according to claim 1, characterized in that: The safety clamp (4) is slidably connected to the safety clamp fixing seat (3) in the horizontal direction, which means that the main body of the safety clamp fixing seat (3) is provided with two upper and lower rows of long holes (9), and the safety clamp (4) is provided with two rows of second bolts (10), and the second bolts (10) in each row are movable through a corresponding long hole (9) in a corresponding row; when the safety clamp (4) slides, it drives all the second bolts (10) to slide in the corresponding long holes (9) of the safety clamp fixing seat (3).
4. The floating linkage mechanism of an elevator according to claim 1, characterized in that: The guide device comprises a first positioning block (11) and a second positioning block (12), a spacing is provided between the first positioning block (11) and the second positioning block (12), the top of the safety clamp (4) is in contact with the bottom plane of the first positioning block (11), and the bottom is in contact with the top plane of the second positioning block (12), and the bottom plane of the first positioning block (11) is parallel to the top plane of the second positioning block (12).
5. The floating linkage mechanism of an elevator according to claim 2, characterized in that: Each set of positioning devices comprises a second screw rod (13), each second screw rod (13) is fixed to the side wall of the safety clamp fixing seat (3) by a plurality of nuts and the tail end thereof abuts against the side wall of the safety clamp (4), and the axis of the first screw rod (8) at the same height and the axis of the second screw rod (13) at the same height are located on the same straight line.
6. The floating linkage mechanism of an elevator according to claim 1, characterized in that: The two ends of the pipe fitting (1) are respectively connected to a lifting plate (5), which means that the end of the pipe fitting (1) is provided with a connecting plate (14), the connecting plate (14) is vertically fixed to the pipe fitting (1), the lifting plate (5) overlaps with the connecting plate (14) and slides along the length direction, and is fixed in place by a plurality of bolts.