High-strength plastic-steel door and window

By installing maintenance components inside PVC windows and doors, and using sliding modules and triggering components to automatically apply oil when the windows and doors are closed, the problem of friction and wear between the window and door frames and window components is solved, extending the service life and improving the convenience and stability of use.

CN224048945UActive Publication Date: 2026-03-27TIANJIN KARCHER CURTAIN WALL DECORATION ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

During use, the hinge joints between the door/window frame and the door/window components are prone to wear due to friction, affecting the smooth opening and closing of the doors/windows and their service life.

Method used

A maintenance component is installed inside the door and window frame, including a sliding module and a triggering component. The sliding module is driven to move along the transmission shaft direction by the motion interference during the closing process of the door and window components, and automatically applies lubricating grease to the hinge position to reduce friction and wear.

Benefits of technology

It effectively reduces wear and tear, extends the service life of doors and windows, ensures smooth opening and closing of doors and windows, and improves ease of use and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-strength plastic-steel door and window, and relates to the technical field of doors and windows. Comprising a maintenance assembly, the maintenance assembly is assembled in a door and window frame and used for conducting oil coating maintenance on the hinged position between the door and window frame and the door and window part when the door and window part is closed, a transmission groove used for installing a transmission shaft is formed in the hinged position between the door and window frame and the door and window part, and the door and window part is hinged to the transmission shaft; the sliding module is assembled in a through area formed between the transmission groove and the carrying notch in the door and window frame, and a plurality of lubricating plates are linearly arrayed on the two sides of the working face of the sliding module. When the door and window piece is closed, the maintenance assembly can automatically conduct oil coating maintenance on the hinged position between the door and window frame and the door and window piece, abrasion caused by friction is effectively reduced, and therefore the service life of the door and window is prolonged, and smooth opening and closing of the door and window are guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to door and window technical field, concretely is a high strength plastic steel door and window. BACKGROUND

[0002] Plastic steel door and window play an important role in various buildings, and belong to the innovative work in the field of plastic steel door and window, and are mainly used for improving the overall safety and durability of buildings, and for further improving the strength of plastic steel door and window, the prior art proposes a high strength plastic steel door and window.

[0003] Through the retrieval, the Chinese utility model patent with the publication number "CN215830333U" discloses "a high strength plastic steel door and window", the application connects the connecting plate at the top with the cross beam, and then connects the movable door and window with the T-shaped sliding block, so that the recess type design at the bottom is changed into the outward convex type limiting base, which is beneficial to the cleaning of the base.

[0004] However, in the actual use process, the device disclosed above has high strength, but there are still deficiencies in the maintenance of the door and window, especially the hinged position between the door and window frame and the door and window piece, which is prone to wear due to friction in the long-term use process, affecting the smooth opening and closing and service life of the door and window. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a high strength plastic steel door and window to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A high strength plastic steel door and window comprises:

[0008] A maintenance assembly is assembled in the interior of the door and window frame, and is used for oiling and maintaining the hinged position between the door and window frame and the door and window piece when the door and window piece is closed;

[0009] The hinged position between the door and window frame and the door and window piece is provided with a transmission groove for installing a transmission shaft, and the door and window piece is hinged with the transmission shaft;

[0010] The maintenance assembly comprises:

[0011] A sliding module is assembled in the through region formed between the transmission groove in the interior of the door and window frame and the lapping gap, and a plurality of lubricating plates are linearly arranged on both sides of the working surface of the sliding module, and the contact surface of each lubricating plate is pre-provided with lubricating grease;

[0012] The inner wall of the door and window frame is processed with a trigger gap corresponding to the mounting gap, and the door and window frame is hinged with a trigger component at the trigger gap, the trigger component generates motion interference during the closing of the door and window component, and realizes rotational displacement through the motion interference, and then drives the sliding module to displace along the direction of the transmission shaft.

[0013] Further preferably, the door and window frame is fixed with a maintenance plate away from the transmission shaft in the through region, and a limiting damping for resetting is fixed between the maintenance plate and the sliding module.

[0014] Further preferably, the transmission shaft is circumferentially hinged with a hinge, the outer edge of the hinge is rigidly connected with the side end of the door and window component, and the mounting plane of the hinge is lower than the reference axis of the internal transmission groove of the transmission shaft.

[0015] Further preferably, the working surface of the sliding module is inwardly recessed to form a contact groove matched with the transmission shaft for forming a cladding contact with the transmission shaft.

[0016] Further preferably, a plurality of trigger protrusions for contacting the trigger component are uniformly fixed outside the sliding module, and the trigger protrusions are designed as spheres for reducing the friction coefficient of the contact surface.

[0017] Further preferably, a slide rail is fixed inside the through region of the door and window frame, and a sliding groove is formed outside the sliding module, and the sliding groove is matched with the slide rail.

[0018] Compared with the prior art, the high-strength plastic steel door and window has the following beneficial effects:

[0019] The high-strength plastic steel door and window can automatically lubricate the hinge position between the door and window frame and the door and window component when the door and window component is closed, effectively reduces the wear caused by friction, prolongs the service life of the door and window, and ensures smooth opening and closing of the door and window.

[0020] In addition, the design of the sliding module allows the lubricating oil to be evenly applied to the hinge position, improving the maintenance effect. Meanwhile, the cooperation of the trigger component and the sliding module realizes automatic maintenance during the closing of the door and window component, without manual intervention, improving the convenience of use. The setting of the maintenance plate and the limiting damping ensures the accurate resetting of the sliding module after displacement, further improving the stability and reliability of the high-strength plastic steel door and window. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is an isometric view of the utility model;

[0022] Figure 2 is Figure 1A part of the local enlarged view of the middle part;

[0023] Figure 3 The assembly drawing of the door and window frame of the utility model;

[0024] Figure 4 For Figure 3 The local enlarged view of the middle B part.

[0025] In the figure: 1, door and window part; 2, door and window frame; 3, hinge; 4, transmission shaft; 5, carrying gap; 6, maintenance assembly; 601, maintenance plate; 602, limit damping; 603, trigger gap; 604, sliding module; 605, lubricating plate; 606, trigger protrusion. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Before understanding the technical solutions proposed in the present application, it is clear that the plastic steel door and window is mainly composed of a door and window frame 2 and a door and window part 1, wherein the door and window part 1 is connected with a transmission shaft 4 through a hinge 3, realizing the opening and closing of the door and window. In order to enhance the overall strength of the door and window, in the utility model, the transmission shaft 4 is designed and arranged in the pre-set transmission groove inside the door and window frame 2. This design not only ensures the stable movement of the door and window part 1, but also effectively improves the load-bearing capacity of the door and window.

[0028] Further, in order to optimize the use experience of the door and window and prolong its service life, the utility model introduces a maintenance assembly 6, which is assembled inside the door and window frame 2, specifically located in the through region formed between the transmission groove and the carrying gap 5. When the door and window part 1 is closed, the maintenance assembly 6 will drive the sliding module 604 in the maintenance assembly 6 to displace along the direction of the transmission shaft 4, and then oiling maintenance is performed on the hinge position.

[0029] Specifically, referring to Figures 1-4 It can be seen that the device proposed in the present application comprises:

[0030] The maintenance assembly 6 is assembled in the internal cavity of the door and window frame 2, and is mainly used for oiling and maintaining the hinge position between the door and window frame 2 and the door and window part 1 when the door and window part 1 is closed. It should be noted that in the present application, the hinge position between the door and window frame 2 and the door and window part 1 is formed by milling into a transmission groove, the transmission groove has an Ω-shaped structure, and a 304 stainless steel transmission shaft 4 with a diameter of 12 mm is arranged in the transmission groove. The transmission shaft 4 is rotatably connected to the door and window frame 2 through self-lubricating bearings, and the middle position is torsionally connected to the door and window part 1 through a spline structure.

[0031] It should be further noted that in the present application, the core components of the maintenance assembly 6 include:

[0032] The sliding module 604 is made of 6061-T6 aluminum alloy precision casting, and is assembled in the T-shaped through region formed by the transmission groove and the mounting notch 5 in the door and window frame 2. Twelve groups of lubricating plates 605 are arranged at a distance of 0.8 mm on both sides of the working surface of the sliding module 604. The surface of each lubricating plate 605 is treated by nano coating, and a 0.3 mm thick molybdenum disulfide composite lubricating layer is pre-coated by vacuum impregnation process. The contact surface of the lubricating plate 605 is designed with a micro oil groove structure with a depth of 0.1 mm, which can form a continuous oil film.

[0033] It should be further noted that in actual use, the inside of the sliding module 604 can also be provided with an oil cavity, which can accommodate 120 ml of special high-permeability grease. The oil cavity and the lubricating plate 605 form a channel opened in the lubricating plate 605, and the channel covers the inner side surface of the lubricating plate 605. At this time, when the sliding module 604 contacts the transmission shaft 4, the high-permeability grease is extruded along the channel in the lubricating plate 605 to the outside of the lubricating plate 605.

[0034] As a preferred embodiment, in the present embodiment, the inner wall of the door and window frame 2 and the region corresponding to the mounting notch 5 form a 45° inclined surface trigger notch 603 through CNC processing. The notch is provided with an L-shaped trigger member made of zinc alloy. The trigger member is hingedly connected through a pin shaft with a diameter of 4 mm. For details, please refer to Figure 4 It can be seen that the shaft body and the baffle structure on the outside of the shaft body are collected.

[0035] It should be noted that in actual use, during the closing process of the door and window part 1, the trigger member gradually interferes with the edge of the door and window part, and the torque is converted into axial displacement by using the lever principle, so as to drive the sliding module 604 to displace along the axis direction of the transmission shaft 4.

[0036] As a preferred embodiment, in the embodiment, the door and window frame 2 is fixed at the end of the through area by the M6 countersunk head bolt fixing maintenance plate 601, the maintenance plate 601 is punched and formed by 304 stainless steel, and the surface is provided with a positioning clamping groove; the maintenance plate 601 is connected with the limiting damping 602 between the sliding module 604; the limiting damping 602 is made of silicon-manganese alloy spring steel and has an elastic coefficient of N=12, so that the sliding module 604 can be accurately reset to the initial position after completing the lubrication action.

[0037] As a preferred embodiment, in the embodiment, the hinge 3 is distributed at equal intervals in the circumferential direction of the transmission shaft 4; the outer edge of the hinge 3 is rigidly connected with the reinforcing rib at the side end of the door and window part 1 through the M5 internal hexagonal screw; and the installation plane of the hinge 3 is lower than the internal transmission groove reference axis of the transmission shaft 4. This design can form a safety gap and effectively avoid deformation interference caused by metal fatigue.

[0038] As a preferred embodiment, in the embodiment, the working surface of the sliding module 604 is numerically controlled to form a semicircular contact groove with an R6.5mm radius; a 0.5mm thick polytetrafluoroethylene gasket is embedded in the groove; the transmission shaft 4 forms a 120° cladding contact; the surface of the groove is mirror polished and has a roughness of Ra0.4, so that the lubricant is uniformly distributed. In addition, it should be noted that, in the embodiment, eight groups of φ3mm trigger protrusions 606 are uniformly distributed on the outer surface of the sliding module 604 by laser cladding technology; the trigger protrusions 606 are selected from silicon nitride ceramic spheres and have a surface roughness of less than Ra0.2; the trigger protrusions 606 are embedded in the module base body by interference fit, and the curvature radius of the trigger protrusions 606 is matched with the working surface of the trigger member, so as to reduce the friction coefficient.

[0039] As a preferred embodiment, in the embodiment, two high-precision straight-line sliding rails are pre-buried in the through area of the door and window frame 2; the sliding rails are made of anodized aluminum alloy material and have an H-shaped structure in cross section; a T-shaped sliding groove is processed at the bottom of the sliding module 604; and an oil-containing bronze sliding block is installed in the groove and forms a gap fit with the sliding rail.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended embodiments and their equivalents.

Claims

1. A high strength plastic steel door and window characterized in that, The utility model relates to a door and window hinge maintenance device, including: A maintenance assembly (6) is arranged inside the door and window frame (2) and is used for maintaining the hinge position between the door and window frame (2) and the door and window piece (1) when the door and window piece (1) is closed; The hinge position between the door and window frame (2) and the door and window piece (1) is provided with a transmission groove for mounting a transmission shaft (4), and the door and window piece (1) is hinged to the transmission shaft (4); The maintenance assembly (6) includes: A sliding module (604) is arranged in the through region formed between the transmission groove and the mounting gap (5) inside the door and window frame (2), a plurality of lubricating plates (605) are linearly arranged on both sides of the working surface of the sliding module (604), and the contact surface of each lubricating plate (605) is provided with lubricating grease in advance; The inner wall of the door and window frame (2) is processed with a trigger gap (603) corresponding to the mounting gap (5), and the door and window frame (2) is hinged to the trigger member at the trigger gap (603), the trigger member generates motion interference during the closing process of the door and window piece (1), and the motion interference realizes rotational displacement, and then drives the sliding module (604) to displace along the direction of the transmission shaft (4).

2. The high-strength plastic steel door and window according to claim 1, characterized in that: The door and window frame (2) is fixed with a maintenance plate (601) away from the transmission shaft (4) in the through region, and a limiting damping (602) for resetting is fixed between the maintenance plate (601) and the sliding module (604).

3. The high-strength plastic steel door and window according to claim 1, characterized in that: The transmission shaft (4) is circumferentially hinged to a hinge (3), the outer edge of the hinge (3) is rigidly connected with the side end of the door and window piece (1), and the mounting plane of the hinge (3) is lower than the reference axis of the transmission groove inside the transmission shaft (4).

4. The high-strength plastic steel door and window according to claim 1, characterized in that: The working surface of the sliding module (604) is recessed inwardly, forming a contact groove matched with the transmission shaft (4) for forming a cladding contact with the transmission shaft (4).

5. The high-strength plastic steel door and window according to claim 1, characterized in that: A plurality of trigger protrusions (606) for contacting the trigger member are uniformly fixed on the outside of the sliding module (604), and the trigger protrusions (606) are designed as spheres for reducing the friction coefficient of the contact surface.

6. The high strength plastic steel door and window according to claim 1, characterized in that: The door and window frame (2) is fixed with a slide rail inside the through region, and the sliding module (604) is provided with a sliding groove on the outside, and the sliding groove is matched with the slide rail.

Citation Information

Patent Citations

  • High-strength plastic-steel door and window

    CN215830333U