Steel door length adjustable hook
Patent Information
- Application Number
- CN202522291717.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-29
AI Technical Summary
[0002]船舶钢质门的门钩安装完成后,受后续设备安装作业干扰,结构变形和钢质门打开角度改度等因素影响,易导致钢质门门钩无法正常挂上钢质门
[0010]为规避上述弊端,采用可调节式钢质门门钩具有显著优势。该类型门钩可通过灵活调节自身长度,精准适配门体与门框的相对位置,有效解决因后续作业,结构变形和钢质门打开角度改变而引发的适配问题,无需进行基座切割与门体重装,大幅减少返工工作量,保障安装效率与工程质量。
Smart Images

Figure CN224785508U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel door technology, and in particular to an adjustable length door hook for steel doors. Background Technology
[0002] After the hooks of a ship's steel door are installed, interference from subsequent equipment installation, structural deformation, and changes in the door's opening angle can easily cause the hooks to fail to properly engage with the door. Traditional solutions to this problem require cutting and removing the existing hook base and reinstalling the hooks, resulting in high rework costs and project delays. Utility Model Content
[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an adjustable-length steel door hook, comprising a first adjusting rod, a second adjusting rod, a door hook seat, and a sleeve; the first adjusting rod is provided with a first hook portion and a first rod portion, the first rod portion having a first threaded section; the second adjusting rod is provided with a second hook portion and a second rod portion, the second rod portion having a second threaded section;
[0004] The door hook seat is fixed to the door panel, and the first hook part is movably hooked on the door hook seat; the two ends of the sleeve are welded with fixing nuts, and the two fixing nuts are threadedly connected to the first rod part and the second rod part respectively.
[0005] According to some embodiments of the present invention, the door hook seat includes a base plate and a door hook, and the door hook is welded to the base plate.
[0006] According to some embodiments of this utility model, the lengths of the first rod and the second rod are 50mm.
[0007] According to some embodiments of this utility model, the length of the sleeve is at least 100 mm.
[0008] According to some embodiments of the present invention, a fixing seat is also included, which is fixed to the door frame, and the second hook is fixedly hooked on the fixing seat.
[0009] This utility model has at least the following beneficial effects:
[0010] To avoid the aforementioned drawbacks, adjustable steel door hooks offer significant advantages. These hooks can flexibly adjust their length to precisely fit the relative position of the door and frame, effectively resolving adaptation issues caused by subsequent work, structural deformation, and changes in the opening angle of the steel door. They eliminate the need for base cutting and door reinstallation, greatly reducing rework and ensuring installation efficiency and project quality.
[0011] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0012] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0013] Figure 1 This is a schematic diagram of the combined state of an embodiment of the present utility model;
[0014] Figure 2 This is a schematic diagram of the sleeve according to an embodiment of the present utility model;
[0015] Figure 3 This is a schematic diagram of the first adjusting rod and the door hook seat combined in an embodiment of the present invention;
[0016] Figure 4 This is a schematic diagram of the combined state of the second adjusting rod and the fixed base according to an embodiment of the present utility model;
[0017] Figure 5 This is a schematic diagram of a door hook seat according to an embodiment of the present utility model. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0019] In the description of this utility model, "more than" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.
[0020] Reference Figures 1 to 4An adjustable-length steel door hook includes a first adjusting rod 100, a second adjusting rod 200, a door hook seat 300, and a sleeve 400. The first adjusting rod 100 is provided with a first hook portion 110 and a first rod portion 120, and the first rod portion 120 is provided with a first threaded section 121. The second adjusting rod 200 is provided with a second hook portion 210 and a second rod portion 220, and the second rod portion 220 is provided with a second threaded section 221. The door hook seat 300 is fixed to the door panel, and the first hook portion 110 is movably hooked on the door hook seat 300. Fixing nuts 500 are welded to both ends of the sleeve 400, and the two fixing nuts 500 are threadedly connected to the first rod portion 120 and the second rod portion 220, respectively.
[0021] To avoid the aforementioned drawbacks, the adjustable steel door hook 320 offers significant advantages. This type of hook 320 can flexibly adjust its length to precisely fit the relative position of the door and door frame, effectively solving adaptation problems caused by subsequent work, structural deformation, and changes in the opening angle of the steel door. It eliminates the need for base cutting and door reinstallation, greatly reducing rework and ensuring installation efficiency and project quality.
[0022] By adjusting the fitting length between the sleeve 400 and the first adjusting rod 100 and the second adjusting rod 200, the influence of structural deformation on the adaptability of the door hook 320 is offset, avoiding rework such as disassembly and reinstallation due to the door hook 320 being unable to be used normally, and reducing maintenance costs.
[0023] To address the compatibility issues arising from installation accuracy, an innovative "segmented pre-installation" operation mode for steel door hooks 320 is implemented, leveraging the adjustable length of the hook. During installation, there is no need for strict control of millimeter-level positioning accuracy. Even with slight installation deviations, the hook length can be adjusted in real-time to ensure proper limit function, significantly reducing the technical threshold and operational difficulty of installation.
[0024] Reference Figure 3 , 4 As shown, both the first rod 120 and the second rod 220 are threaded with movable nuts 600. When the first rod 120 and the second rod 220 are rotated, the depth to which the first rod 120 and the second rod 220 extend into the sleeve 400 changes, thereby adjusting the length of the door hook 320. At this time, rotating the movable nut 600 again causes the movable nut 600 to abut against the fixed nut 500, thereby fixing the length.
[0025] Reference Figure 5 As shown, the door hook seat 300 includes a base plate 310 and a door hook 320. The door hook 320 is welded onto the base plate 310 and is movably hooked to the first hook part 110.
[0026] Reference Figures 3 to 4As shown, the lengths of the first rod 120 and the second rod 220 are 50mm, and the lengths of the first adjusting rod 100 and the second adjusting rod 200 can be selected according to requirements; similarly, the length of the sleeve 400 is at least 100mm, and its length can also be selected according to requirements.
[0027] By selecting sleeves 400 of different specifications and lengths and adjusting rods, the extension length of the door hook 320 can be precisely adjusted. The extension length of the door hook 320 can be flexibly adjusted according to the actual construction scenario and subsequent operation requirements, adapting to the large modification of the length of the steel door hook 320 caused by the change of the opening angle of the steel door.
[0028] To fix the second adjusting rod 200, a fixing seat 700 is also included. The fixing seat 700 is fixed to the door frame, and the second hook 210 is fixedly hooked on the fixing seat 700.
[0029] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one embodiment or example.
[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An adjustable-length steel door hook, characterized in that, include: A first adjusting rod (100) is provided with a first hook (110) and a first rod (120), and the first rod (120) is provided with a first threaded section (121); The second adjusting rod (200) is provided with a second hook (210) and a second rod (220), and the second rod (220) is provided with a second threaded section (221); Door hook seat (300), the door hook seat (300) is fixed to the door panel, and the first hook part (110) is movably hooked on the door hook seat (300); A sleeve (400) is provided, with fixing nuts (500) welded to both ends of the sleeve (400). The two fixing nuts (500) are threadedly connected to the first rod portion (120) and the second rod portion (220), respectively.
2. The adjustable-length steel door hook according to claim 1, characterized in that, Both the first rod (120) and the second rod (220) are threaded with movable nuts (600).
3. The adjustable-length steel door hook according to claim 1, characterized in that, The door hook seat (300) includes a base plate (310) and a door hook (320), and the door hook (320) is welded onto the base plate (310).
4. The adjustable-length steel door hook according to claim 1, characterized in that, The lengths of the first rod (120) and the second rod (220) are 50 mm.
5. The adjustable-length steel door hook according to claim 1, characterized in that, The length of the sleeve (400) is at least 100 mm.
6. The adjustable-length steel door hook according to claim 1, characterized in that, It also includes a fixing seat (700), which is fixed to the door frame, and the second hook (210) is fixedly hooked on the fixing seat (700).