Elevator door sill
By designing a non-top sliding section on the elevator door sill, combined with guide wheels and limiting parts, the problem of foreign matter accumulation in the sliding groove is solved, achieving stable operation of the elevator door, reducing noise, and extending the service life of the elevator door.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional elevator door sill tracks are prone to accumulating foreign objects such as fruit peels and dust, which can cause the door sliders to malfunction, making cleaning difficult and preventing the doors from opening and closing properly when foreign objects get stuck.
Design an elevator door sill with a sliding part located at the top of the mounting part, a guide wheel and a limiting part on the connecting part, and a Teflon patch for soundproofing to reduce friction and noise.
To prevent the accumulation of foreign objects, reduce cleaning difficulty, ensure stable operation of elevator doors, reduce noise, and extend the service life of elevator doors.
Smart Images

Figure CN223983323U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of elevators, and in particular relates to an elevator door sill. Background Technology
[0002] Currently, elevators are widely used, mainly installed in hotels, shopping malls, and high-rise office buildings. With the improvement of people's living standards, the requirements for housing are also constantly increasing, leading to a surge in high-end multi-story, independent, integrated residential buildings, thus creating a market demand for villa elevators. Traditional elevator door sills have grooves on their upper surface. These grooves allow the door sliders to move back and forth, enabling the elevator door to open and close on a track. However, these grooves inevitably accumulate fruit peels, dust, and other debris, making cleaning difficult. Furthermore, if larger objects fall into the grooves and are not cleaned promptly, the door sliders may become stuck, preventing normal opening and closing. Summary of the Invention
[0003] In view of this, the present invention aims to propose an elevator door sill to solve the problem that the groove set on the upper surface of the sill is prone to accumulate objects, causing the landing door to jam and preventing normal opening and closing.
[0004] To achieve the above objectives, this utility model adopts the following technical solution to provide an elevator door sill, comprising:
[0005] The mounting part is used to guide the elevator door and is provided with a sliding part, wherein the sliding part is located at a position other than the top of the mounting part;
[0006] The connecting part has one end slidably mounted on the sliding part, and the other end connected to the elevator door;
[0007] A noise-reducing component is installed between the mounting part and the connecting part to reduce the coefficient of friction.
[0008] Furthermore, the connecting part is provided with a sliding component, which is slidably mounted on the sliding part.
[0009] Furthermore, the connecting part is provided with a limiting part, the limiting part and the moving component are located at the same end, and the limiting part is slidably disposed inside the sliding part.
[0010] Furthermore, the sliding component is a guide wheel, and at least one of the guide wheels is rotatably mounted on the connecting part.
[0011] Furthermore, the axis of the guide wheel is parallel to the side wall space of the sliding part.
[0012] Furthermore, the limiting part and the sliding part are engaged on at least one inner wall.
[0013] Furthermore, the limiting part is plate-shaped and arranged parallel to the side wall of the sliding part.
[0014] Furthermore, the sliding part is a sliding groove.
[0015] Furthermore, the noise-silencing component is disposed on the connecting part.
[0016] Furthermore, the noise-reducing component is a Teflon patch.
[0017] Compared with the prior art, the beneficial effects of the present invention are:
[0018] The mounting section has a sliding part at the non-top. The position of the sliding part prevents garbage and debris from falling into its interior. The connecting part will not be interfered with when sliding on the sliding part, thus avoiding the accumulation of fruit peels, dust, etc. in the groove, which makes cleaning difficult. If a slightly larger foreign object falls into the groove, it will cause the door slider to stop moving if not cleaned in time, resulting in the door jamming and preventing normal opening and closing. The sound-silencing component can effectively reduce the noise generated when the mounting part and the connecting part slide relative to each other. Attached Figure Description
[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the connecting part structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the elevator door operation according to the present invention.
[0023] Mounting part 1; sliding part 2; connecting part 3; sliding assembly 4; sound-absorbing part 5; limiting part 6. Detailed Implementation
[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.
[0025] It should be noted that the descriptions of "left," "right," "left side," "right side," "upper part," "lower part," "top," and "bottom" in this invention are defined based on the orientation or positional relationships shown in the accompanying drawings. They are merely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the described structure must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0026] In the description of this invention, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0027] Referring to the accompanying drawings, this embodiment provides a lifting structure, including:
[0028] Mounting part 1 is used to guide the elevator door and has a sliding part 2. The sliding part 2 is located at the non-top of the mounting part 1. The position of the sliding part 2 prevents garbage and debris from falling into the interior of the sliding part 2. When the connecting part 3 slides on the sliding part 2, it will not be interfered with, thus avoiding the accumulation of fruit peels, dust, etc. in the groove, which makes cleaning difficult. If a slightly larger foreign object falls into the groove, it will cause the door slider to stop moving if it is not cleaned in time, thus causing the landing door to jam and preventing normal opening and closing.
[0029] The connecting part 3 has one end slidably mounted on the sliding part 2, and the other end is connected to the elevator door;
[0030] The noise reduction component 5 is disposed between the mounting part 1 and the connecting part 3 to reduce the coefficient of friction. The noise reduction component 5 can effectively reduce the noise generated when the mounting part 1 and the connecting part 3 slide relative to each other.
[0031] In this embodiment, the connecting part 3 is provided with a sliding component 4, which slides on the sliding part 2. The sliding component 4 can effectively reduce the resistance generated by the connecting part 3 sliding on the sliding part 2 by sliding inside the sliding part 2. At the same time, the sliding component 4 can also limit the connecting part 3 to prevent the connecting part 3 from moving left and right on the sliding part 2, which will cause the elevator door to move left and right when opening and closing. This will increase the wear of the elevator door when it moves, thereby shortening the service life of the elevator door. Moreover, the friction generated by the elevator door when sliding also generates noise, which will have a certain impact on the user.
[0032] In this embodiment, the connecting part 3 is provided with a limiting part 6. The limiting part 6 and the moving component 4 are located at the same end. The limiting part 6 is slidably disposed inside the sliding part 2. The limiting part 6 is disposed in the connecting part 3 and moves inside the sliding part 2 with the sliding component 4 to slide, further restricting the connecting part 3, so that the connecting part 3 will move more smoothly inside the sliding part 2.
[0033] In this embodiment, the sliding component 4 is a guide wheel, and at least one of the guide wheels is rotatably mounted on the connecting part 3. The sliding component 4 is a guide wheel, which makes the connecting part 3 move more smoothly inside the sliding part 2. However, due to the characteristics of the sliding component 4 as a guide wheel, the sliding component 4 can only be in contact with one side of the sliding part 2. When one side of the sliding part 2 is in contact with the guide wheel, the limiting part 6 is in contact with the other side, so that the guide wheel and the limiting part 6 expand the sliding part 2 to increase the stability of the connecting part 3.
[0034] In this embodiment, the axis of the guide wheel is parallel to the side wall space of the sliding part 2. When the axis of the guide wheel is parallel to the side wall space of the sliding part 2, the virtual plane of the guide wheel's movement direction is perpendicular to the side wall space. Therefore, when the guide wheel moves inside the sliding part 2, it will contact one of the side walls. This allows the guide wheel to rotate inside the sliding part 2. At the same time, in order to ensure the stability of the connecting part 3, the limiting part 6 will fit against the opposite surface of the side contacted by the guide wheel. This better restricts the position of the connecting part 3, preventing the connecting part 3 from sliding during movement. This reduces the sliding of the elevator door connected to the connecting part 3 during movement, thereby reducing the friction between the elevator door and the door frame, increasing the service life of the elevator door, and reducing the noise generated by the friction between the elevator door and the door frame during movement, thus improving the user experience.
[0035] In this embodiment, the limiting part 6 and the sliding part 2 cooperate with at least one inner wall. When the limiting part 6 cooperates with one inner wall, the stability of the connecting part 3 is effectively improved. This better restricts the position of the connecting part 3, so that the connecting part 3 will not slide during the movement. This reduces the sliding of the elevator door connected to the connecting part 3 during the movement, thereby reducing the friction between the elevator door and the door frame, increasing the service life of the elevator door, and reducing the noise generated by the friction between the elevator door and the door frame during the movement, thus improving the user experience.
[0036] In this embodiment, the limiting part 6 is plate-shaped and arranged parallel to the side wall of the sliding part 2. The plate shape of the limiting part 6 allows for better cooperation with the sliding part 2. The plate shape also increases the contact area, making it more stable and secure during movement. The limiting part 6 is formed by bending the sliding end of the connecting part 3, which can further improve the stability of the connecting part 3 while reducing costs and reducing processing steps. If an additional plate-shaped limiting part 6 is added, the limiting part 6 needs to be cut and then welded according to the appropriate position. Welding will also generate welding slag. If the welding slag is not cleaned, the connecting part 3 with welding slag may collide with the sliding part 2 of the mounting part 1 during the movement of the elevator door, which will also change the original position of the elevator door, increase the friction between the elevator door and the door frame, and thus shorten the service life of the elevator door. Moreover, the friction generated by the elevator door during sliding also generates noise, which will have a certain impact on users. Therefore, the welding slag needs to be cleaned after welding, which increases the processing steps and thus increases the cost of use.
[0037] In this embodiment, the sliding part 2 is a sliding groove. The side of the sliding groove can better cooperate with the limiting part 6 and the moving component 4 on the connecting part 3, thereby improving the stability of the connecting part 3 when it moves.
[0038] In this embodiment, the sound-silencing component 5 is disposed on the connecting part 3. Since the connecting part 3 is installed on the elevator door and slides on the mounting part 1, the size of the mounting part 1 is much larger than the size of the connecting part 3. To ensure the stable operation of the elevator door, each elevator door will be provided with no less than two connecting parts 3. When the connecting part 3 is provided with the sound-silencing component 5, the sound-silencing component 5 effectively reduces the friction between the connecting part 3 and the mounting part 1, thereby reducing the noise generated in the first half of the movement. Similarly, the sound-silencing component 5 installed on the mounting part 1 can also achieve the same effect. However, the number of sound-silencing components 5 used in this way is much greater than the number of sound-silencing components 5 installed on the connecting part 3.
[0039] In this embodiment, the silencing component 5 is a Teflon patch. Teflon patches maintain good performance in high-temperature environments, with a high-temperature resistance exceeding 260°C. They have a long aging life among plastics, allowing them to withstand long-term exposure to various climatic conditions without degradation. Their surface has an extremely low coefficient of friction, making them one of the materials with the lowest coefficient of friction among solid materials. They also have very low surface tension, making them difficult to adhere to any substance, exhibiting excellent anti-adhesion properties. They can withstand 1500 volts of high voltage, possess excellent dielectric and insulating properties, and are inert to most chemicals and solvents. They are resistant to strong acids, alkalis, water, and various organic solvents. Even at a low temperature of -196°C, Teflon patches maintain their flexibility and mechanical strength, are not prone to aging, and retain their physical and chemical properties even during prolonged use. They can be processed into very smooth surfaces, with surface roughness reaching the nanometer level. Because fluorine atoms completely surround the carbon skeleton, Teflon has extremely strong resistance to acids, alkalis, solvents, and oxidants.
[0040] Working principle;
[0041] When the elevator door opens or closes, it slides along the direction of the mounting part 1. To ensure stability during the sliding process, the elevator door slides inside the sliding part 2 via the connecting part 3. Typically, the sliding part 2 is located at the top of the mounting part 1, which easily leads to the accumulation of nutshells, dust, etc., making cleaning difficult. If a slightly larger foreign object falls into the groove and is not cleaned promptly, it can prevent the door slider from moving, causing the landing door to jam and preventing normal opening and closing. Therefore, the sliding part 2 should be located at the top of the mounting part 1, and it should be a sliding groove. The connecting part 3 is a connecting frame. To ensure smooth sliding of the connecting part 3 within the sliding part 2, a sliding component 4 is provided at one end of the connecting part 3 inside the sliding part 2. The sliding component 4 is a guide wheel, and the number of guide wheels is adjusted according to the actual situation. The guide wheels are installed parallel to the bottom surface of the sliding groove, and the guide wheels contact one side of the sliding groove. To ensure that the guide wheels do not slip when sliding inside the sliding groove... Since sliding will occur, a limiting part 6 is provided at the sliding end of the connecting part 3 to cooperate with the sliding part 2 to limit the sliding component 4 and thus limit the connecting part 3. This prevents the connecting part 3 from being unstable during sliding, which would affect the sliding of the elevator door, cause increased wear, and produce glare that would affect its use. The limiting part 6 is plate-shaped, and the plate shape cooperates with the interior of the sliding part 2 to increase the stability of the connecting part 3. The sound-absorbing component 5 is provided on the connecting part 3. Since the connecting part 3 is installed on the elevator door and slides on the mounting part 1, the size of the mounting part 1 is much larger than the size of the connecting part 3. To ensure the stable operation of the elevator door, each elevator door will be provided with no less than two connecting parts 3. When the connecting part 3 is provided with the sound-absorbing component 5, the sound-absorbing component 5 effectively reduces the friction between the connecting part 3 and the mounting part 1, thereby reducing the noise generated in the first half of the movement. Similarly, the sound-absorbing component 5 installed on the mounting part 1 can also achieve the same effect. However, the number of sound-absorbing components 5 used in this way is much greater than the number of sound-absorbing components 5 installed on the connecting part 3.
[0042] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.
Claims
1. An elevator door sill, characterized in that, Include: The installation part (1) is used to guide the elevator door, and the sliding part (2) is arranged at the non-top end of the installation part (1); The connecting part (3) is slidably arranged on the sliding part (2), and the other end is connected with the elevator door; The mute piece (5) is arranged between the installation part (1) and the connecting part (3), and is used to reduce the friction coefficient.
2. An elevator door sill according to claim 1, characterized in that: The connecting part (3) is provided with a sliding assembly (4), and the sliding assembly (4) is slidably arranged on the sliding part (2).
3. An elevator door sill according to claim 2, characterized in that: The connecting part (3) is provided with a limiting part (6), the limiting part (6) and the dynamic assembly (4) are located at the same end, and the limiting part (6) is slidably arranged in the sliding part (2).
4. An elevator door sill according to claim 2 or 3, characterized in that: The sliding assembly (4) is a guide wheel, and at least one guide wheel is rotatably arranged on the connecting part (3).
5. The elevator door sill of claim 4, wherein: The axis of the guide wheel is parallel to the side wall space of the sliding part (2).
6. The elevator door sill of claim 3, wherein: The limiting part (6) and the inner wall of at least one side of the sliding part (2) are matched.
7. An elevator door sill according to claim 6, characterized in that: The limiting part (6) is plate-shaped and arranged parallel to the side wall of the sliding part (2).
8. The elevator door sill of claims 1, 2, 3, 5, or 7, wherein: The sliding part (2) is a sliding groove.
9. An elevator door sill as defined in claim 1, 2, 3, 5 or 7, characterized by: The mute piece (5) is arranged on the connecting part (3).
10. The elevator door sill of claim 9, wherein: The mute piece (5) is a Teflon patch.