Inside-outside door handle mounting structure and house door
By guiding the tie screws and welding nuts to accurately align, the problem of hole misalignment caused by hole deviation in the traditional installation of internal and external door handles is solved. This achieves an efficient and labor-saving installation process, improves installation accuracy and connection stability, and enhances the safety and aesthetics of the door handles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING MEIXIN MESSON DOORS IND CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional installation of interior and exterior door handles suffers from problems such as difficulty in aligning holes due to hole misalignment, time-consuming and labor-intensive installation, hand fatigue, and local overload cracking of nuts.
The design employs a guide block, which includes a mounting section and a guiding section. The guiding section has a trumpet-shaped structure and is connected to the welded nut via an interference fit, guiding the tie screw to be accurately aligned and distributing the tightening stress.
It enables a fast and precise installation process, reduces hand fatigue, improves installation efficiency and accuracy, enhances connection stability, prevents nut cracking, and improves the safety and aesthetics of door handles.
Smart Images

Figure CN224591915U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door technology, specifically to an inner and outer door handle installation structure and a door. Background Technology
[0002] In furniture manufacturing, building decoration, and other fields involving door installation, the installation of interior and exterior door handles is a crucial step in ensuring the functionality and aesthetics of doors. However, the traditional installation process for interior and exterior door handles presents numerous problems that urgently need to be addressed, which severely impact installation efficiency.
[0003] First, the difficulty in alignment is a major pain point of traditional installation methods. When installing indoor and outdoor door handles, installers typically need to align the mounting holes on the indoor handle, the door, and the nut on the outdoor handle. Then, they use a tie rod to thread through the mounting holes on the indoor handle and the door, connecting it to the nut. Due to hole misalignment and the inability to see the nut, it's impossible to accurately align the tie rod with the nut and connect them threaded together. Throughout the installation process, installers need to repeatedly adjust the positions of the indoor and outdoor handles, constantly trying to align the tie rod with the nut hole. This process is time-consuming and laborious. This "difficulty in aligning the holes" not only makes the originally simple installation work cumbersome and time-consuming but also significantly increases the difficulty and cost of installation.
[0004] Secondly, traditional installation methods can easily lead to hand fatigue for installers. During the repeated adjustment of handle positions, installers' hands are under constant tension, which easily causes fatigue. This not only reduces installation efficiency but may also affect installation quality.
[0005] Furthermore, in the connection between tie bolts and nuts, traditional installation methods also pose a risk of stress concentration leading to localized overload and cracking of the nut. During the tightening process of tie bolts, due to the lack of an effective stress dispersion mechanism, stress may concentrate in a localized area of the nut, which can easily lead to nut cracking after long-term use. This, in turn, affects the stability of the tie bolt and nut connection and reduces the reliability of the door handle installation.
[0006] Therefore, it is necessary to develop a new installation structure for both internal and external door handles and for the door itself. Utility Model Content
[0007] The purpose of this utility model is to provide an inner and outer door handle installation structure and a door that can avoid the problem of "difficulty in aligning holes" caused by hole position deviation during manual alignment.
[0008] In the first aspect, the present invention provides an inner and outer door handle installation structure, which includes a room door, an outdoor handle and an indoor handle, and includes a guide block, a welding nut and a tie screw. The welding nut is welded to the outdoor handle; The guide block includes a mounting part and a guide part. The guide block is snapped onto the welding nut through the mounting part. The inner hole of the guide part is a trumpet-shaped structure that gradually increases from the outside to the inside. The pull screws pass sequentially through the interior handle, the door, and the guide portion of the guide block and are screwed onto the welded nut.
[0009] Preferably, the mounting portion of the guide block and the welding nut are connected by an interference fit.
[0010] Secondly, the door described in this utility model adopts the inner and outer door handle installation structure as described in this utility model.
[0011] The beneficial effects of this utility model are: (1) Precise guidance and positioning, efficient and simplified alignment process: The guide block can quickly guide the tie screw and the welding nut to be accurately aligned, effectively avoiding the problem of "difficulty in aligning holes" caused by hole position deviation when manually aligning. It is especially suitable for non-professionals to operate, greatly reducing the installation threshold. Even people who lack professional installation experience can easily complete the installation of indoor and outdoor door handles, significantly improving installation efficiency.
[0012] (2) Significantly reduce hand fatigue and reduce reliance on tools: This utility model reduces unnecessary operation actions of installers by using the precise guidance of the guide block, making the installation process easier and less strenuous, thereby significantly reducing hand fatigue.
[0013] (3) Significantly improves installation accuracy and perfectly ensures handle symmetry: The precise positioning function of the guide block ensures that the tie screw and the welding nut can be accurately aligned, thereby ensuring that the door handle and the door mounting hole can be accurately aligned, effectively avoiding installation quality problems caused by inaccurate alignment. The installed door handle is firm and stable, and will not wobble, make abnormal noises, or even loosen and fall off during use, greatly improving the safety and lifespan of the door. In addition, the precise installation also ensures the symmetry of the indoor and outdoor door handle installation, making the overall appearance of the door more beautiful and coordinated, and improving the overall quality and market competitiveness of the product.
[0014] (4) The design of the guide block can also disperse the stress when the tie screw is tightened, avoid local overload cracking of the weld nut, and enhance the stability of the connection between the tie screw and the weld nut. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the internal and external door handle installation structure described in the embodiments of this application; In the picture: 1. Indoor handle, 2. Outdoor handle, 3. Welded nut, 4. Guide block, 5. Pull screw, 6. Door. Detailed Implementation
[0016] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.
[0017] like Figure 1 As shown in the embodiment of this application, an interior and exterior door handle installation structure includes a room door, an exterior handle 2, and an interior handle 1, comprising a guide block 4, a welding nut 3, and a pull screw 5. The welding nut 3 is welded to the exterior handle 2. The guide block 4 includes a mounting part and a guiding part, and the guide block 4 is engaged with the welding nut 3 through the mounting part. The inner hole of the guiding part is a trumpet-shaped structure that gradually increases in size from the exterior to the interior. The pull screw 5 passes sequentially through the interior handle 1, the room door, and the guiding part of the guide block 4 and is screwed onto the welding nut.
[0018] In one possible embodiment, the mounting portion of the guide block 4 is provided with a snap-fit hole, and the guide block 4 is connected to the welding nut 3 by an interference fit through the snap-fit hole.
[0019] During installation, first attach the guide block 4 to the welding nut 3, then insert the pull screw 5 into the pre-drilled mounting hole in the indoor handle 1. Guided by the guide block 4, it can be easily aligned with the thread of the welding nut 3, thus achieving quick and accurate installation.
[0020] In this embodiment, the guide block 4 provides a clear path for the tie screw 5, simplifying the alignment process between the tie screw 5 and the weld nut 3. This avoids the "difficulty in hole alignment" problem caused by hole position deviations during manual alignment, making it particularly suitable for non-professionals. The guide block 4 significantly improves installation accuracy, ensuring the symmetry of the indoor handle 1 and the outdoor handle 2 installations and reducing the risk of structural damage or aesthetic defects. Furthermore, the mounting portion of the guide block 4 has an interference fit with the weld nut 3, and the guide block 4 can also distribute the stress during the tightening of the tie screw 5, preventing local overload cracking of the weld nut 3 and enhancing the stability of the connection between the tie screw 5 and the weld nut 3.
[0021] In this embodiment of the application, a door adopts the inner and outer door handle installation structure as described in this embodiment of the application.
[0022] This is a preferred embodiment of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. An interior and exterior door handle installation structure, comprising a door (6), an exterior handle (2), and an interior handle (1), characterized in that, Includes guide block (4), welding nut (3) and tie screw (5); The welding nut (3) is welded to the outdoor handle (2); The guide block (4) includes a mounting part and a guide part. The guide block (4) is snapped onto the welding nut (3) through the mounting part. The inner hole of the guide part is a trumpet-shaped structure that gradually increases from the outside to the inside. The pull screw (5) passes through the indoor handle (1), the door and the guide portion of the guide block (4) in sequence and is screwed onto the welding nut (3).
2. The inside and outside door handle mounting structure according to claim 1, characterized by The mounting part of the guide block (4) and the welding nut (3) are connected by an interference fit.
3. A type of door, characterized in that, The installation structure for the inner and outer door handles as described in claim 1 or 2 is adopted.