Stainless steel car door sill assembly with hook
By combining aluminum profiles and stainless steel in the sill groove structure, the problem of traditional stainless steel sills easily falling out of the groove is solved, thereby improving the stability and safety of elevator doors and making them suitable for car doors that open and close at high frequencies.
Patent Information
- Application Number
- CN202520051619.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-09
AI Technical Summary
The limited radius of curvature at the corners of traditional stainless steel sills makes elevator doors prone to slipping out of the groove, posing a safety hazard and making them unsuitable for use with car doors that open and close frequently.
The sill groove is made of aluminum profile extrusion molding and combined with stainless steel panel. The sill groove is equipped with hook-shaped grooves, and the slider part cooperates with the anti-disengagement hook for sliding connection. Combined with the protective plate structure, it ensures the stability and safety of elevator door.
It improves the anti-slip performance of elevator doors, reduces door opening sway, enhances the operational reliability and safety of elevator doors, and meets the requirements of high-frequency opening and closing.
Smart Images

Figure CN223722505U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to an improved elevator sill structure, in particular to a hook-equipped stainless steel car door sill assembly. BACKGROUND
[0002] The sill is an elevator assembly installed below the elevator door and leveled with the ground. The slider at the lower part of the elevator door is matched with the groove on the sill to provide linear guidance for the opening and closing stroke of the elevator door. The sill can be made of various materials. In high-quality elevators, the main material of the elevator car is stainless steel or other materials. Therefore, the sill also needs to be matched with stainless steel material. The traditional stainless steel sill is usually formed by simple bending. However, the turning angle of the bending piece is limited, and the formed groove cannot be too small, otherwise it cannot be formed. Therefore, it performs poorly in the anti-pulling-out test. In some cases, the elevator door may be stuck due to pulling out. Therefore, it needs to be improved. The car door sill is installed on the car bottom of the car. The opening and closing frequency of the car door is higher. Therefore, better safety is required, and improvement is necessary. SUMMARY
[0003] The utility model aims at overcoming the above-mentioned deficiencies in the prior art and providing a hook-equipped stainless steel car door sill assembly.
[0004] The utility model discloses the technical scheme adopted to solve the above-mentioned problem is: the stainless steel car door sill assembly includes a sill part and a slider part. The sill part is fixed on the car bottom structure below the car door. The slider part is connected to the bottom of the car door and is slidably arranged with the sill part. The sill part includes a profile groove body and a stainless steel panel. The profile groove body is upwardly formed with a sill groove. The sill groove is formed with a hook-shaped groove. The slider part is formed with an anti-pulling-out hook. The anti-pulling-out hook and the hook-shaped groove are oppositely arranged and slidably work together. The sill assembly adopts the mutually matched sill part and slider part. The sill is formed by combining structures of different materials. The basic stainless steel base can provide a structural basis for the formed structure of the sill. The stainless steel has good strength and is durable. The profile groove body has good forming quality and can be formed into a groove structure with higher precision. Meanwhile, the hook-shaped groove can be formed to improve the anti-pulling-out performance of the elevator door.
[0005] Further, the profile groove body is formed by extrusion of aluminum profile, the bottom of the profile groove body is provided with a mounting groove, the mounting groove is fixedly connected with the car bottom, the side of the profile groove body is formed with a stepped structure, the stepped structure is arranged in butt joint with the corner edge of the car bottom, the upper part of the profile groove body is provided with a sill groove, the side of the sill groove is provided with a hook-shaped groove, the groove bottom of the hook-shaped groove extends upward, the upper surface of the profile groove body is formed with a recessed embedding groove, and a stainless steel panel is embedded in the recessed embedding groove. The mounting groove can be integrally fixed with the car bottom to realize the connection of the structure, and the anti-extrusion is formed in the sill groove to effectively protect the environment in the sill groove and avoid the entry of sundries. The anti-extrusion is arranged upward, and when the door is subjected to lateral force, the anti-extrusion is guided to move to the groove bottom of the anti-extrusion, thereby achieving good anti-extrusion effect. The stainless steel panel is arranged flush with the ground as the surface structure of the upper surface and is adapted to the overall style of the car.
[0006] Further, the stainless steel panel is a flat plate structure with a flat surface, and the stainless steel panel is provided with an identification mark. The stainless steel panel is arranged flush with the upper surface of the profile groove body. The stainless steel panel is decorated on the surface, and is coordinated with the overall decoration of the elevator car. The stainless steel panel is embedded, and the decoration effect of the surface such as the identification mark can be designed individually and replaced as needed.
[0007] Further, the outer side of the profile groove body is formed with a vertical protective plate, the protective plate is arranged opposite to the foot guard plate in the direction of the landing door, and the protective plate extends downward beyond the lower bottom edge of the mounting groove. The protective plate provides a smooth shielding structure for the side, can cooperate with the foot guard plate of the landing door to form a smooth opposite surface with small gap, can effectively prevent sundries from entering, and can avoid the danger caused by misalignment of the car.
[0008] Further, the sliding block part comprises a bent connecting plate and a sliding block. The bent connecting plate comprises a door plate connecting section, a transverse connecting section, a groove-in connecting section and an anti-extrusion hook. The door plate connecting section is fixed on the elevator door, the transverse connecting section is bent transversely at the bottom of the elevator door to the upper part of the sill groove, the groove-in connecting section extends downward into the sill groove, and the end of the bent connecting plate is formed as an anti-extrusion hook arranged upward. The sliding block is fixed on both sides of the groove-in connecting section and is arranged in sliding connection with the surface in the sill groove. The sliding block part adopts a bent connecting plate, which realizes vertical cooperation with the sill groove under the premise of good fixation with the elevator door, and has simple and reliable structure and good combination degree with the groove structure.
[0009] Compared with the prior art, the present utility model has the following advantages and effects: the present design is an improvement of the sill structure under the car door, the main body adopts the groove body structure formed by aluminum profile, the groove body structure has high precision, can smoothly slide with the sliding block structure, can reduce the shaking when the door is opened, has the function of preventing the groove from being separated, can effectively improve the ability of the car door to resist external impact, ensure the operation reliability of the elevator door, and effectively improve the safety. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 is the structure diagram of the car door sill assembly.
[0011] Figure 2 is the structure diagram of the profile groove body.
[0012] In the figure: 1, sill part, 2, sliding block part, 3, profile groove body, 4, stainless steel panel, 5, sill groove, 6, hook-shaped groove, 7, anti-separation hook, 8, mounting groove, 9, stepped structure, 10, recessed embedding groove, 11, protective plate, 12, sliding block, 13, door panel connecting section, 14, transverse connecting section, 15, groove inner connecting section. DETAILED DESCRIPTION
[0013] The utility model will be further explained in detail in combination with the drawings and through examples, and the following examples are the explanation of the utility model and the utility model is not limited to the following examples.
[0014] A kind of hook stainless steel car door sill assembly, stainless steel car door sill assembly includes sill part 1 and sliding block part 2, sill part 1 is fixed on the car bottom structure under car door, sliding block part 2 connects the bottom of car door, and with sill part 1 sliding arrangement, sill part 1 includes profile groove body 3 and stainless steel panel 4, profile groove body 3 is formed with sill groove 5 upwards, sill groove 5 is formed with hook-shaped groove 6, the sliding block part 2 is formed with anti-separation hook 7, anti-separation hook 7 and hook-shaped groove 6 are relatively matched and set to slide each other.
[0015] Profile groove body 3 is formed by extrusion of aluminum profile, the bottom of profile groove body 3 is provided with mounting groove 8, mounting groove 8 is fixedly connected with car bottom, the side of profile groove body 3 is formed with stepped structure 9, stepped structure 9 is butt-jointed with the corner edge of car bottom, the upper portion of profile groove body 3 is provided with sill groove 5, the side of sill groove 5 is provided with hook-shaped groove 6, the groove bottom of hook-shaped groove 6 extends upwards, the upper surface of profile groove body 3 is formed with recessed embedding groove 10, stainless steel panel 4 is embedded in recessed embedding groove 10.
[0016] Stainless steel panel 4 is flat plate structure with flat surface, stainless steel panel 4 is marked with logo, stainless steel panel 4 is flush with the upper surface of profile groove body 3.
[0017] The outer side of the profile groove body 3 is formed with a vertical protection plate 11, which is arranged opposite to the foot protection plate in the direction of the layer door, and the downward extension of the protection plate 11 exceeds the lower bottom edge of the installation groove 8.
[0018] The sliding block part 2 comprises a bent connecting plate and a sliding block 12, the bent connecting plate comprises a door plate connecting section 13, a transverse connecting section 14, a groove inner connecting section 15 and a anti-unhooking hook 7, the door plate connecting section 13 is fixed on the elevator door, the transverse connecting section 14 is transversely bent at the bottom of the elevator door to the upper part of the sill groove 5, the groove inner connecting section 15 extends downward into the sill groove 5, the end of the bent connecting plate is formed as the upwardly inclined anti-unhooking hook 7, and the sliding block 12 is fixed on both sides of the groove inner connecting section 15 and is arranged to slide with the surface in the sill groove 5.
[0019] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A hinged stainless steel landing door sill assembly characterized by: The stainless steel landing door sill assembly comprises a sill part (1) and a sliding block part (2), the sill part (1) is fixed on the bottom structure under the landing door, the sliding block part (2) is connected to the bottom of the landing door and is slidingly arranged with the sill part (1), the sill part (1) comprises a profile groove body (3) and a stainless steel panel (4), the profile groove body (3) is upwardly formed with a sill groove (5), the sill groove (5) is formed with a hook-shaped groove (6), the sliding block part (2) is formed with an anti-unhooking hook (7), the anti-unhooking hook (7) and the hook-shaped groove (6) are oppositely arranged and slidably work with each other.
2. The hooked stainless steel landing door sill assembly of claim 1, wherein: The profile groove body (3) is formed by extrusion of aluminum profile, the bottom of the profile groove body (3) is provided with a mounting groove (8), the mounting groove (8) is fixedly connected with the bottom, the side edge of the profile groove body (3) is formed with a stepped structure (9), the stepped structure (9) is butted with the corner edge of the bottom, the upper part of the profile groove body (3) is provided with the sill groove (5), the side edge of the sill groove (5) is provided with the hook-shaped groove (6), the groove bottom of the hook-shaped groove (6) extends upwardly and obliquely, the upper surface of the profile groove body (3) is formed with a recessed embedding groove (10), the stainless steel panel (4) is embedded and arranged in the recessed embedding groove (10) in a plane.
3. The hooked stainless steel landing door sill assembly of claim 2, wherein: The stainless steel panel (4) is a flat plate structure with a smooth surface, the stainless steel panel (4) is printed with an identification, and the stainless steel panel (4) is flush with the upper surface of the profile groove body (3).
4. The hooked stainless steel landing door sill assembly of claim 2, wherein: The outer side of the profile groove body (3) is formed with a vertical protection plate (11), the protection plate (11) is oppositely arranged with a foot guard plate in the direction of the landing door, and the protection plate (11) downwardly extends beyond the lower bottom edge of the mounting groove (8).
5. The hooked stainless steel threshold assembly for an elevator door of claim 1, wherein: The sliding block part (2) comprises a bent connecting plate and a sliding block (12), the bent connecting plate comprises a door plate connecting section (13), a transverse connecting section (14), a groove-in connecting section (15) and the anti-unhooking hook (7), the door plate connecting section (13) is fixed on the elevator door, the transverse connecting section (14) is transversely bent back to the upper part of the sill groove (5) at the bottom of the elevator door, the groove-in connecting section (15) extends downwardly into the sill groove (5), and the end of the bent connecting plate is formed as the anti-unhooking hook (7) which is obliquely upwardly arranged, and the sliding block (12) is fixed on both sides of the groove-in connecting section (15) and is slidingly arranged with the surface in the sill groove (5).