Fixing clamp, elevator guiding device and elevator
By applying a low-friction coating to the fixing clamps and brackets, the problem of guide rail bending caused by thermal expansion or contraction is solved, improving the comfort and safety of the elevator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KONE ELEVATORS CO LTD
- Filing Date
- 2025-03-20
- Publication Date
- 2026-05-26
AI Technical Summary
Existing elevator guide rails in high-travel buildings are prone to bending due to thermal expansion or contraction, affecting ride comfort and safety. Improved guide rail sliding clamps and fixing methods are needed to prevent guide rail deformation.
The improved clamps and brackets are coated with materials such as polymers, fluoropolymers, or PTFE coatings to reduce friction and allow the guide rails to slide between the clamps and brackets, preventing deformation.
By reducing friction, the guide rails can slide on the support, preventing them from bending and improving the comfort and safety of the elevator.
Smart Images
Figure CN224279442U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a fixing clamp used in conjunction with a fixing bracket to install guide rails in an elevator shaft. The elevator is preferably an elevator used for transporting passengers and / or goods. Background Technology
[0002] Due to building shrinkage or thermal expansion with large elevator travel distances, especially when elevator codes require travel exceeding 40 meters, guide rails can bend, leading to issues with ride comfort and safety. The proposed solution will allow the guide rails to slide relative to the brackets and clamps, preventing guide rail bending.
[0003] To minimize the impact of changes in guide rail length, the guide rail clamp allows the guide rail to slide relative to the fixed bracket, thereby preventing deformation of the fixed bracket.
[0004] An improved guide rail sliding clamp and an improved guide rail fixation are needed to allow guide rail sliding that supports high loads. Utility Model Content
[0005] One object of the present invention is to introduce an improved elevator guide rail fixing clamp, an improved elevator guiding device, and an elevator.
[0006] The retaining clip is used to secure the elevator guide rail to the fixed bracket, and the retaining clip includes:
[0007] The fastening part is configured to be fastened to the fixed bracket;
[0008] The claw is configured to press the feet of the guide rail against the fixed bracket when the fixed clamp is fastened to the fixed bracket.
[0009] The metal surface of the claw that contacts the top surface of the foot is coated with a coating, and the friction between the coating and the top surface of the foot allows the guide rail to slide between the claw and the fixed bracket.
[0010] Advantageously, all metal surfaces of the retaining clip are coated with the coating.
[0011] Advantageously, the friction between the coating and the top surface of the guide rail foot is less than the friction between the metal material of the claw and the top surface of the guide rail foot and / or the friction between the support surface of the guide rail fixing part of the fixing bracket and the bottom surface of the guide rail foot, and the fastening part is fastened to the guide rail fixing part.
[0012] Advantageously, the coating is at least one of the following: a polymer coating, a fluoropolymer coating, a PTFE coating, or a ceramic coating.
[0013] Advantageously, the thickness of the coating is 15 pm to 50 pm, more preferably 20 pm to 40 pm, and most preferably 25 pm.
[0014] An elevator guiding device includes: at least one fixing clamp for guiding an elevator car along an elevator guide rail in an elevator shaft; at least one fixing bracket for supporting the elevator guide rail, wherein the at least one fixing clamp is used to attach the elevator guide rail to the at least one fixing bracket.
[0015] Advantageously, the entire bottom surface of the fixed bracket facing the foot is coated.
[0016] Advantageously, a portion of the bottom surface of the fixed bracket facing the foot is coated with a coating, which corresponds to the surface of the claw of the fixed clamp that contacts the top surface of the foot of the guide rail.
[0017] Advantageously, all surfaces of the fixing bracket are coated.
[0018] An elevator includes the elevator guiding device as described above. Attached Figure Description
[0019] The present invention will now be described in more detail with reference to the accompanying drawings and preferred embodiments, wherein:
[0020] Figure 1 A side view of the elevator is shown.
[0021] Figure 2 The image shows a retaining clip securing the guide rail to a mounting bracket.
[0022] Figure 3 As shown above Figure 2 The guiding device.
[0023] Figure 4 An exploded view of a first embodiment of the guiding device is shown.
[0024] Figure 5 Another exploded view of a first embodiment of the guiding device is shown.
[0025] Figure 6 An exploded view of a second embodiment of the guiding device is shown.
[0026] Figure 7 An exploded view of a third embodiment of the guiding device is shown. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0028] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of this disclosure may have fewer components, other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.
[0029] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Where the number of components is not specified, the number of components may be one or more; similarly, terms such as “a,” “the,” and “described” do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative orientations when the equipment is in use or as shown in the accompanying drawings; these relative orientations may change accordingly when the absolute position of the described object changes.
[0030] Figure 1 A side view of the elevator is shown. The elevator may include a car 2, an elevator shaft 1, a hoisting mechanism 3, hoisting ropes 4, and a counterweight 5. A separate or integrated car frame 6 may surround the car 2. The hoisting mechanism 3 may be positioned within the shaft 1. The hoisting mechanism may include a drive 31, a motor 32, a traction pulley 33, and a mechanical brake 34. The hoisting mechanism 3 can move the car 2 vertically up and down within the vertically extending elevator shaft 1. The mechanical brake 34 can stop the rotation of the traction pulley 33, thereby stopping the movement of the elevator car 2.
[0031] exist Figure 1In the shaft 1, the car 2 is connected to the counterweight 5 by ropes 4 via traction sheaves 33. The car and the counterweight are suspended by one or more ropes 4, which are guided over the traction sheaves 33 for vertical movement of the car 2 within the shaft 1.
[0032] exist Figure 1 In the shaft 1, the car 2 is further supported by a guide member 7 at a guide rail 8, which extends vertically within the shaft. The guide rail can be connected to the wall structure 10 in the shaft using a fixed bracket 9. When the car moves up and down in the shaft 1, the guide member 7 ensures the vertical movement of the car 2. The counterweight 5 can be supported on the guide rail in a corresponding manner, and the guide rail is attached to the wall structure 10 of the shaft 1.
[0033] The elevator car 2 can transport people and / or goods between floors of a building. The elevator shaft 1 can be configured such that the wall structure 10 is formed of a solid wall, or such that the wall structure 10 is formed of an open steel structure.
[0034] Figure 2-7 A guide rail 8 is shown connected to a fixed bracket 9 by a fixing clip 20. The fixed bracket 9 is preferably adjustable. The fixed bracket 9 includes a first main body portion 11 extending outward from the shaft wall structure 10, and the main body portion 11 includes a wall fixing portion 12. Furthermore, the fixed bracket 9 includes a second main body portion 13 having a guide rail fixing portion 14. The first main body portion 11 and the second main body portion 13 preferably include means for adjusting the first main body portion 11 and the second main body portion 13 relative to each other, for example, an elongated hole. Therefore, the guide rail 8 can be adjusted horizontally and laterally, and the distance between the guide rail 8 and the wall structure 10 can be adjusted.
[0035] The guide rail 8 is attached to the fixed bracket 9 via a retaining clip 20, particularly to the guide rail fixing portion 14, preferably by bolts. The bolt connection preferably includes a bolt 35, a washer 36, and a nut 37. The retaining clip 20 includes a fastening portion 21 for securing to the fixed bracket 9. Figure 2-7 In the shaft 1, at a specific guide rail support height, two fixing clips 20 on opposite sides of the guide rail 8 are fastened to the fixing portion 14 of the fixing bracket 9. The fastening portion 21 includes an opening 24 for receiving bolts 35.
[0036] The retaining clamp 20 includes claws 22 for pressing the guide rail 8 against the retaining bracket 9. Preferably, the claws 22 are tensioned in the attached state when the bolt connection is tightened. Figure 2-7 In the middle, the claw portion 22 of the fixing clamp on the opposite side of the guide rail 8 presses or clamps the guide rail 8 against or clamps it onto the fixing portion 14 of the fixing bracket 9.
[0037] According to one embodiment, the metal surface 221 of the claw portion 22 of the retaining clamp 20 that contacts the top surface of the foot portion 8' of the guide rail 8 is coated with a coating, the friction between the coating and the top surface of the foot portion 8' of the guide rail 8 being selected to allow the guide rail 8 to slide between the claw portion 22 and the retaining bracket 9.
[0038] The frictional force between the coating and the top surface of the guide rail foot is less than the frictional force between the metal material of the claw 22 and the top surface of the guide rail foot, and / or the frictional force between the supporting surface of the guide rail fixing portion 14 of the fixing bracket 9 and the bottom surface of the guide rail foot. In fact, due to the presence of the coating, the metal material of the claw 22 does not contact the top surface of the guide rail foot. Therefore, the frictional force between the metal material and the top surface of the guide rail foot should be understood as the frictional force between the metal material and the top surface assuming the absence of the coating.
[0039] According to one embodiment, all surfaces of the clamp 20 (including all surfaces of the claw 22 and the fastening portion 21) are coated with the coating. Compared to coating only the metal surface of the claw 22 that contacts the top surface of the foot 8', coating all surfaces of the clamp 20 facilitates the machining of the clamp.
[0040] The coating is at least one of the following: a polymer coating, a fluoropolymer coating, a PTFE coating, or a ceramic coating. According to one embodiment, the ceramic coating is, for example, a chromium oxide ceramic coating.
[0041] The coating thickness is 15 pm to 50 pm, more preferably 20 pm to 40 pm, and most preferably 25 pm.
[0042] According to one embodiment, the entire surface 91 of the bottom surface of the foot 8' of the guide rail 8 of the fixing bracket 9 is coated with a coating, as an example, such as Figure 7 As shown, a metal sheet 92 is provided, the size of which is the same as the size of the surface 91 of the fixing bracket, and is provided (e.g., by adhesive) on the surface 91 of the fixing bracket. The metal sheet 92 is coated with a coating.
[0043] According to one embodiment, a portion of the bottom surface 91 of the foot 8' of the guide rail 8 of the fixing bracket 9 is coated with a coating, as an example, such as Figure 6 As shown, two metal plates 92 are provided, each metal plate 92 being disposed between the surface 91 of the fixed bracket 91 and the bottom surface of the guide rail foot. The size of each metal plate 92 is approximately equal to the surface 221 of the claw 22 of the fixed clamp 8 that contacts the top surface of the guide rail foot (e.g., ...). Figure 5 (as shown in the figure) size.
[0044] According to one embodiment, all surfaces of the fixing bracket 8 are coated with the coating.
[0045] At least one retaining clip 20 can be used in, for example Figure 1 The elevator guiding device shown includes an elevator guide rail 8 for guiding the elevator car 2 in the elevator shaft 1, and at least one fixed bracket 9 supporting the elevator guide rail 8; wherein at least one fixing clip 20 is used to attach the elevator guide rail 8 to at least one fixed bracket 9.
[0046] The use of this invention is not limited to the embodiments disclosed in the accompanying drawings. This invention can be used in any type of elevator, such as elevators with or without a machine room, including or without a counterweight. The counterweight can be located on any side wall, both side walls, or the rear wall of the elevator shaft. The drive unit, motor, traction sheave, and machine brake can be located in the machine room or somewhere in the elevator shaft. The elevator car guide rails can be positioned on opposite side walls or the rear wall of the shaft.
[0047] Although the present invention has been described in the specification and illustrated in the accompanying drawings with reference to various embodiments, those skilled in the art will understand that the above embodiments are merely preferred embodiments, and some technical features in the embodiments may not be necessary for solving specific technical problems, so these technical features may be omitted or omitted without affecting the solution to the technical problem or the formation of the technical solution; moreover, the features, elements and / or functions of one embodiment may be appropriately combined, combined or coordinated with the features, elements and / or functions of one or more other embodiments, unless such combination, combination or coordination is obviously not feasible.
Claims
1. A fixing clip (20) for fixing an elevator guide rail (8) to a fixing bracket (9), the fixing clip (20) comprising: The fastening part (21) is configured to be fastened to the fixed bracket (9); The claw (22) is configured to press the foot (8') of the guide rail (8) against the fixed bracket (9) when the fixed clamp is fastened to the fixed bracket. Its features are, The metal surface of the claw that contacts the top surface of the foot is coated with a coating, and the friction between the coating and the top surface of the foot allows the guide rail (8) to slide between the claw (22) and the fixed bracket (9).
2. The fixing clip as described in claim 1, characterized in that, All metal surfaces of the clamp are coated with the coating.
3. The fixing clip as described in claim 1, characterized in that, The friction between the coating and the top surface of the guide rail foot is less than the friction between the metal material of the claw (22) and the top surface of the guide rail foot and / or the friction between the support surface of the guide rail fixing part (14) of the fixing bracket (9) and the bottom surface of the guide rail foot, and the fastening part (21) is fastened to the guide rail fixing part.
4. The fixing clip as described in any one of claims 1 to 3, characterized in that, The coating is at least one of the following: polymer coating, fluoropolymer coating, PTFE coating, ceramic coating.
5. The fixing clip as described in any one of claims 1 to 3, characterized in that, The thickness of the coating is 15 pm to 50 pm.
6. The fixing clip as described in claim 5, characterized in that, The coating thickness is 20 pm to 40 pm.
7. The fixing clip as described in claim 6, characterized in that, The coating thickness is 25 μm.
8. An elevator guiding device, characterized in that, Elevator guidance devices include: At least one fixing clamp (20) according to any one of claims 1 to 7 is used for guiding the elevator car (2) of the elevator guide rail (8) in the elevator shaft (1); At least one fixed bracket (9) supporting the elevator guide rail (8), At least one fixing clip (20) is used to attach the elevator guide rail (8) to at least one fixing bracket (9).
9. The elevator guiding device as described in claim 8, characterized in that, The entire bottom surface of the fixed bracket facing the foot is coated.
10. The elevator guiding device as described in claim 8, characterized in that, A portion of the bottom surface of the fixed bracket facing the foot is coated with a coating, which corresponds to the surface of the claw of the fixed clamp that contacts the top surface of the foot of the guide rail.
11. The elevator guiding device as described in claim 8, characterized in that, All surfaces of the mounting bracket are coated.
12. An elevator, characterized in that, The elevator includes an elevator guiding device as described in any one of claims 8 to 11.