Elevator friction damper
Through the swing arm mechanism, the car door activity is sensed and the damper clamping guide rail is realized by using mechanical connections, which solves the instability and high cost problems caused by the dependence of electrical signals by existing elevator friction dampers, and provides a stable shock absorption effect and a cost-reducing solution.
Patent Information
- Application Number
- CN202422363376.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing elevator friction dampers rely on electrical signals to drive, which has the risk of interference and is costly, and cannot effectively solve the problem of shaking of the car when passengers or cargo enters.
The swing arm mechanism is used to sense the movement of the car door, and the damping mechanism is driven to clamp the guide rails through mechanical connections, providing frictional resistance to shock absorption, avoiding electrical signal interference and reducing costs.
It realizes a stable mechanical connection shock absorption effect, reduces shaking during the use of the elevator, improves the user experience and reduces the system cost.
Smart Images
Figure CN223133843U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an elevator buffer system, in particular to an elevator friction damper. Background Art
[0002] The description in this part only provides background information related to the disclosure of the utility model, and does not constitute prior art.
[0003] When the car door is opened and passengers or goods enter the elevator, in order to prevent the car of the elevator from being suddenly increased in gravity and causing up and down shaking and vibration, generally, the above problems can be solved by setting an elevator friction damper.
[0004] However, the existing technical solutions of elevator friction dampers generally use electromagnets or motors to drive and operate through electrical signals. However, in the case where electrical signals cannot completely shield interference, there may be errors, resulting in the failure of the elevator friction damper to intervene, seriously affecting the use experience of the elevator. At the same time, the cost of driving by electromagnets or motors is also relatively high.
[0005] At present, there is no elevator friction damper that can solve the above problems. Summary of the Utility Model
[0006] The purpose of the utility model is to provide an elevator friction damper, which can sense the movement of the car door through a swing arm mechanism, drive a damping mechanism to apply resistance to the car, and achieve shock absorption in a physical connection manner.
[0007] To achieve the above purpose, the utility model discloses an elevator friction damper for damping the car. Among them, the car includes a car door that can move horizontally, and one side of the car is connected to a guide rail; the elevator friction damper includes:
[0008] A damping mechanism, the damping mechanism includes a base and a clamp. The base is fixed on the car, the clamp is arranged on the base, and the clamp faces the guide rail. Among them, the clamp includes a first clamp arm and a second clamp arm, and the first clamp arm and the second clamp arm are connected by a rotating shaft;
[0009] A swing arm mechanism, the swing arm mechanism includes a fixed seat and a swing arm. The fixed seat is arranged on one side of the car, the swing arm is rotatably connected to the fixed seat, the swing arm has opposite first and second ends, and the first end of the swing arm is connected to the car door;
[0010] Among them, it further includes a brake cable, the brake cable having opposite first and second ends. The first end of the brake cable is connected to the caliper, and the second end of the brake cable is connected to the second end of the swing arm. So that when the car door is opened, the car door drives the first end of the swing arm to rotate, the second end of the swing arm pulls the second end of the brake cable, and the second end of the brake cable pulls the caliper, causing the first caliper arm and the second caliper arm to clamp the guide rail.
[0011] Furthermore, the damping mechanism further includes a guide wheel set, the guide wheel set being connected to the caliper, and the guide wheel set being arranged by two guide wheels fitting against the two side walls of the guide rail, so that during the process of the first caliper arm and the second caliper arm clamping the guide rail, the first caliper arm and the second caliper arm remain balanced relative to the guide rail.
[0012] Furthermore, the swing arm has a preset length. When the car door is fully opened, the caliper just clamps the guide rail, so that the damping mechanism is completely fixed to the guide rail.
[0013] Furthermore, the fixing seat is arranged on one side of the top of the car, and the fixing seat is adjacent to the edge position of the car door and is arranged avoiding the car door.
[0014] Furthermore, a guide shaft is provided on the base, the caliper has an outer frame, the outer frame is sleeved on the guide shaft, and there is a redundant distance between the outer frame and the base, so that the outer frame can swing along the guide shaft on the base.
[0015] Furthermore, a push wheel is installed at the first end of the swing arm, the push wheel is in contact with the car door, and when the car door is opened, the push wheel rolls relative to the car door.
[0016] Furthermore, the swing arm has a preset length so that the push wheel is in contact with the middle position of the car door.
[0017] By means of the above technical solutions, the beneficial effects of the present utility model are as follows:
[0018] The elevator friction damper of the present utility model can sense the movement of the car door through the swing arm mechanism. When the car door is opened, the swing arm in the swing arm mechanism rotates, and drives the damping mechanism to clamp the guide rail by means of the brake cable, so as to achieve a certain frictional resistance between the car and the guide rail. At this time, when passengers or goods enter the car interior, the car will not shake, and the transmission relationship of the above swing arm mechanism and damping mechanism structure is completely mechanically connected, avoiding the instability of the electrical signal connection in the prior art and reducing the cost.
[0019] To enable a further understanding of the features and technical content of the present utility model, please refer to the following detailed description and drawings of the present utility model. However, the provided drawings are only for reference and illustration, and are not intended to limit the present utility model. Description of the Drawings
[0020] In order to more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in this specification. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0021] Figure 1 It is a schematic diagram of the connection relationship of an elevator friction damper provided by an embodiment of this specification;
[0022] Figure 2 It is a schematic diagram of the damping mechanism of an elevator friction damper provided by an embodiment of this specification;
[0023] In the figure: 100, car door; 200, guide rail; 1, damping mechanism; 11, base; 111, guide shaft; 12, clamp; 121, outer frame; 13, guide wheel set; 2, swing arm mechanism; 21, fixed seat; 22, swing arm; 23, push wheel; 3, brake wire. Detailed Embodiments
[0024] In order to enable those skilled in the art to better understand the technical solutions in this specification, the following will clearly and completely describe the technical solutions in the embodiments of this specification in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.
[0025] The following are specific embodiments to illustrate the implementation manners of the present utility model. Those skilled in the art can understand the advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present utility model. Additionally, the drawings of the present utility model are only for simple schematic illustration and are not drawn according to actual dimensions, hereby stating in advance. The following embodiments will further detail the related technical content of the present utility model, but the disclosed content is not intended to limit the protection scope of the present utility model.
[0026] It should be understood that, although terms such as "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another, or one signal from another. In addition, the term "or" used herein should, depending on the actual situation, possibly include any combination of one or more of the associated listed items.
[0027] Please refer to Figure 1-2 , which is an elevator friction damper according to this embodiment and is used for damping the car. Among them, the car includes a car door 100 that can move horizontally, and one side of the car is connected to the guide rail 200; the elevator friction damper includes:
[0028] A damping mechanism 1, the damping mechanism 1 includes a base 11 and a clamp 12. The base 11 is fixed on the car, the clamp 12 is arranged on the base 11, and the clamp 12 faces the guide rail 200. Among them, the clamp 12 includes a first clamp arm and a second clamp arm, and the first clamp arm and the second clamp arm are connected by a rotating shaft;
[0029] A swing arm mechanism 2, the swing arm mechanism 2 includes a fixed seat 21 and a swing arm 22. The fixed seat 21 is arranged on one side of the car, the swing arm 22 is rotatably connected to the fixed seat 21, the swing arm 22 has opposite first and second ends, and the first end of the swing arm 22 is connected to the car door 100;
[0030] Among them, it further includes a brake cable 3. The brake cable 3 has opposite first and second ends. The first end of the brake cable 3 is connected to the clamp 12, and the second end of the brake cable 3 is connected to the second end of the swing arm 22. So that when the car door 100 is opened, the car door 100 drives the first end of the swing arm 22 to rotate, the second end of the swing arm 22 pulls the second end of the brake cable 3, and the second end of the brake cable 3 pulls the clamp 12, so that the first clamp arm and the second clamp arm clamp the guide rail 200.
[0031] With the above structure, during use, before a passenger or goods is about to enter the car, first control the car door 100 to open. After the car moves to the corresponding floor, the car door 100 slides horizontally and pushes the second end of the swing arm 22 on one side of the car door 100 to rotate around the fixed seat 21. At this time, the first end of the swing arm 22 rotates in the corresponding opposite direction around the fixed seat 21 and pulls the first end of the brake cable 3. Then, the second end of the brake cable 3 pulls the clamp 12 of the damping mechanism 1, and the first clamp arm and the second clamp arm of the clamp 12 gradually close during the pulling process of the brake cable 3, and finally the first clamp arm and the second clamp arm completely clamp the guide rail 200 they are facing. By this means, resistance is applied to the car. At this time, if a passenger or goods enters the car, the car will not drop, vibrate or shake suddenly due to the gravity inside the car, enhancing the practical experience of the elevator.
[0032] During the above use process, the damping mechanism 1 and the swing arm mechanism 2 are completely driven purely mechanically through the brake cable 3. Specifically, by opening or closing the car door 100, the swing arm 22 is driven to rotate around the fixed seat 21, and the brake cable 3 is pulled. Then, the brake cable 3 controls the clamp 12, completely getting rid of the existing dependence on electromagnets or motors for driving. And because the swing arm 22 has sufficient length and the force arm for pulling the brake cable 3 is long enough, the stability of the system in this embodiment is significantly higher than that of the electric system, the process of applying resistance and damping vibration is more stable, the cost of the structure is lower, and the structural components are simple and easy to replace, and the later maintenance cost is also lower.
[0033] Furthermore, please refer to Figure 2 , the damping mechanism 1 further includes a guide wheel group 13. The guide wheel group 13 is connected to the clamp 12, and the guide wheel group 13 is arranged by two guide wheels fitting on both side walls of the guide rail 200, so that during the process of clamping the guide rail 200 by the first clamp arm and the second clamp arm, the first clamp arm and the second clamp arm remain balanced relative to the guide rail 200. Specifically, the guide wheel group 13 is rollably attached to both sides of the guide rail 200, and the guide wheel group 13 is connected to the clamp 12. That is to say, during the process of clamping the guide rail 200 by the first clamp arm and the second clamp arm, when the clamp 12 is subjected to an external force and shakes unbalancedly relative to the guide rail 200, it can be limited by the guide wheel group 13, so that the clamp 12 maintains a stable intermediate position relative to the guide rail 200, making the clamping more stable and avoiding the occurrence of the car shaking caused by instability during the clamping process.
[0034] Furthermore, the swing arm 22 has a preset length. When the car door 100 is completely opened, the clamp 12 just clamps the guide rail 200 tightly, so that the damping mechanism 1 and the guide rail 200 are completely fixed. Specifically, as Figure 1As shown in the figure, a push wheel 23 is installed at the first end of the swing arm 22. The push wheel 23 is in contact with the car door 100. When the car door 100 is opened, the push wheel 23 rolls relative to the car door 100, and the swing arm 22 has a preset length so that the push wheel 23 is in contact with the middle position of the car door 100. That is to say, when the car door 100 is fully opened, the gripper 12 can fully clamp the guide rail 200, so that resistance is applied to the car, and the situation where the gripper 12 breaks due to the fully opened car door 100 or the situation where the car cannot be applied with resistance will not occur. And with the help of the push wheel 23, during the opening process of the car door 100, the push wheel 23 rolls relative to one side of the car door 100, avoiding wear during use. The push wheel 23 is arranged at the middle position of the car door 100 when the car door 100 is closed. In this case, the whole structure has a reasonable force arm relationship, and with the general height of the car door 100 being 2 - 2.5 meters, the swing arm 22 runs more smoothly and steadily.
[0035] Further, as Figure 1 shown, the fixed seat 21 is arranged on one side of the top of the car, and the fixed seat 21 is adjacent to the edge position of the car door 100 and is arranged to avoid the car door 100. Specifically, an inner door machine is arranged at the top of the car door 100, which is a component cluster integrating the drive and control of the car door 100. In this case, on the basis of ensuring the movement space of the swing arm 22, the space of the whole car system is saved.
[0036] Further, as Figure 2 shown, a guide shaft 111 is provided on the base 11. The gripper 12 has an outer frame 121. The outer frame 121 is sleeved on the guide shaft 111, and there is a redundant distance between the outer frame 121 and the base 11, so that the outer frame 121 can swing along the guide shaft 111 on the base 11. Specifically, two guide shafts 111 are fixedly arranged through both sides of the base 11, and the corresponding positions at both ends of the outer frame 121 are sleeved on the two guide shafts 111, and the outer frame is connected to the gripper 12, so that during the working process of the gripper 12, the gripper 12 drives the outer frame 121 to move slightly or shake around the guide shaft 111 in the limited redundant space, avoiding structural damage caused by excessive stress.
[0037] The content disclosed above is only the preferred feasible embodiment of the present utility model, and does not limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made by using the content of the specification and drawings of the present utility model are included in the scope of the patent application of the present utility model.
[0038] The embodiments in this specification are described in a progressive manner. For the same or similar parts between the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.
[0039] Although the present application is depicted by way of examples, those of ordinary skill in the art know that the present application has many variations and changes without departing from the spirit of the present application, and it is hoped that the appended embodiments include these variations and changes without departing from the present application.
Claims
1. An elevator friction damper for damping the car, wherein, The car includes a car door that can move horizontally, and one side of the car is connected to a guide rail; characterized in that the elevator friction damper includes: A damping mechanism, the damping mechanism includes a base and a clamp. The base is fixed on the car, the clamp is arranged on the base, and the clamp faces the guide rail. Wherein, the clamp includes a first clamping arm and a second clamping arm, and the first clamping arm and the second clamping arm are connected by a rotating shaft; A swing arm mechanism, the swing arm mechanism includes a fixed seat and a swing arm. The fixed seat is arranged on one side of the car, the swing arm is rotatably connected to the fixed seat, the swing arm has opposite first and second ends, and the first end of the swing arm is connected to the car door; Wherein, a brake wire is further included. The brake wire has opposite first and second ends. The first end of the brake wire is connected to the clamp, and the second end of the brake wire is connected to the second end of the swing arm. So that when the car door is opened, the car door drives the first end of the swing arm to rotate, the second end of the swing arm pulls the second end of the brake wire, and the second end of the brake wire pulls the clamp, so that the first clamping arm and the second clamping arm clamp the guide rail.
2. The elevator friction damper according to claim 1, characterized in that: The damping mechanism further includes a guide wheel set. The guide wheel set is connected to the clamp, and the guide wheel set is arranged by two guide wheels fitting against the two side walls of the guide rail, so that during the process of the first clamping arm and the second clamping arm clamping the guide rail, the first clamping arm and the second clamping arm remain balanced relative to the guide rail.
3. The elevator friction damper according to claim 1, wherein: The swing arm has a preset length. When the car door is fully opened, the clamp just clamps the guide rail, so that the damping mechanism is completely fixed to the guide rail.
4. The elevator friction damper according to claim 1, characterized in that: The fixed seat is arranged on one side of the top of the car, and the fixed seat is adjacent to the edge position of the car door and is arranged to avoid the car door.
5. The elevator friction damper according to claim 1, characterized in that: A guide shaft is provided on the base. The clamp has an outer frame. The outer frame is sleeved on the guide shaft, and there is a redundant distance between the outer frame and the base, so that the outer frame can swing on the base along the guide shaft.
6. The elevator friction damper according to claim 1, wherein: A push wheel is installed at the first end of the swing arm. The push wheel is in contact with the car door. When the car door is opened, the push wheel rolls relative to the car door.
7. The elevator friction damper according to claim 6, characterized in that: The swing arm has a preset length so that the push wheel is in contact with the middle position of the car door.