Connecting structure of door stopper mounting shell and door stopper
By incorporating nails and a guide rail design into the door catch mounting housing, the problem of unstable adhesive bonding is solved, resulting in higher connection strength and stability, and reduced production costs and time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 林桂东
- Filing Date
- 2025-04-19
- Publication Date
- 2026-05-01
AI Technical Summary
The existing door catch mounting shells are connected by adhesive tape, which is not very stable and is easily affected by changes in temperature and humidity and vibration, which can cause them to loosen or fall off, posing a safety hazard.
The connection structure consists of a shell and a cover. Through holes for nails are provided on the outer extension of the shell, and the nails are used to fix it to the door leaf. Combined with the design of guide rails and protrusions, the connection stability is enhanced.
The connection strength of the door catch has been improved, resisting the effects of temperature and humidity changes and vibration, preventing loosening or falling off, ensuring long-term stable locking and positioning functions, and reducing production costs and cycle time.
Smart Images

Figure CN224187377U_ABST
Abstract
Description
The connection structure of the door catch mounting housing and the door catch Technical Field
[0001] This utility model relates to the field of household products technology, and in particular to the connection structure of the door catch mounting shell and the door catch. Background Technology
[0002] In the field of modern architecture, door catches, as a key component of door control devices, play an indispensable role in residential, commercial and industrial buildings. When the door is opened, the door catch can effectively lock and position it, ensuring that the door remains firmly open, thereby preventing the door from closing accidentally due to wind, unintentional touch by people or other factors, and providing convenience and security for people's passage and space use.
[0003] However, most door catch mounting shells on the market are currently made using a one-piece molding process, typically using adhesive tape on the back of the shell to connect and fix it to the door. This adhesive method has obvious defects, as its connection stability is poor. During long-term use, it is easily affected by various factors such as temperature changes, humidity fluctuations, and vibrations caused by frequent opening and closing of the door, which gradually reduces the adhesive strength, causing the door catch to loosen or even fall off. A loose or detached door catch not only affects its normal function but may also pose safety hazards, such as accidentally closing the door and injuring people or damaging property. Therefore, further improvements to the existing technology are needed. Summary of the Invention
[0004] The purpose of this utility model is to provide a connection structure for a door catch mounting shell designed to solve at least one technical problem in the background art.
[0005] The purpose of this invention is to provide a door catcher designed to solve at least one technical problem in the background art.
[0006] To achieve the above objectives, the present invention adopts the following solution: a connecting structure for a door catch mounting shell, comprising a shell and a cover, characterized in that: the rear side of the shell is provided with an upwardly extending extension, and the extension is provided with a through hole for mounting nails, and the cover is assembled on the shell.
[0007] The outer extension is provided with a guide rail on the side facing the cover, and a sliding cavity is provided on the inner wall of the cover. The cover is slidably assembled with the outer extension through the cooperation between the sliding cavity and the guide rail.
[0008] The guide rail has an L-shaped structure, with its first end connected to the outer extension portion and its second end extending outward from the outer extension portion.
[0009] The second end of the guide rail and the extension form a channel for guiding and limiting the cover.
[0010] The shell has a protrusion, and the cover has a recessed groove corresponding to the protrusion. When the cover is installed on the shell, the protrusion is located in the recessed groove.
[0011] The protrusions form a support portion for supporting the cover between the protrusions and the top surface of the shell.
[0012] The protrusions are located on the front and left and right sides of the housing, and are connected to the second end of the guide rail.
[0013] The housing includes an installation cylinder and a recessed receiving cavity at the bottom. The installation cylinder is connected to the receiving cavity.
[0014] The door catcher includes a pull rod, a magnetic component, and a connecting structure for the door catcher mounting shell. The pull rod is movably fitted inside the mounting cylinder, and the magnetic component is connected to the pull rod and located within the receiving cavity.
[0015] It also includes an elastic element, with the side of the pull rod away from the magnetic element exposed outside the mounting cylinder, and the elastic element fitted onto the exposed side of the pull rod.
[0016] The advantages of this utility model are as follows: The mounting shell for the door closer in this application consists of a shell and a cover. By setting through holes for mounting nails on the outer extension of the shell, the shell is firmly fixed to the door leaf using nails. This mechanical fixing method replaces the traditional adhesive, greatly improving the connection strength. In addition, the use of nails for fixing can effectively resist the effects of temperature and humidity changes and vibrations caused by frequent opening and closing of the door leaf, avoiding loosening or falling off, and ensuring that the door closer can stably perform its locking and positioning functions for a long time. The mounting shell of this application has a simple structure and reasonable design, which facilitates manufacturing and subsequent assembly processes, helps to reduce the time efficiency of manual operation and the production cost of the product, and shortens the production cycle of the product. Attached Figure Description
[0017] Figure 1 is a three-dimensional schematic diagram of the door catch;
[0018] Figure 2 is a front view schematic diagram of the door catch;
[0019] Figure 3 is a cross-sectional view of AA in Figure 2;
[0020] Figure 4 is an exploded view of the door catch;
[0021] Figure 5 is a three-dimensional schematic diagram of the door catch (II).
[0022] Figure 6 is a front view schematic diagram of the shell and the extension portion;
[0023] Figure 7 is a cross-sectional view of BB in Figure 6;
[0024] Figure 8 is a top view of the shell and the extension portion;
[0025] Figure 9 is a three-dimensional schematic diagram of the cover. Detailed Implementation
[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so as to intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0027] In the description of this utility model, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. When a feature is referred to as "set," "fixed," or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.
[0028] In the description of this utility model, the term "several" means one or more, and "multiple" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number. The terms "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features and not as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.
[0029] Furthermore, unless otherwise defined, the technical and scientific terms used in this invention have the same meanings as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for the purpose of describing particular embodiments only and not for limiting the invention. It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.
[0030] Example 1: As shown in Figures 1-9, the connection structure of the door catch mounting shell includes a shell 1 and a cover 2. The shell 1 has an upwardly extending extension 11 on its rear side, and a through hole 111 for installing nails is provided on the extension 11. The cover 2 is assembled on the shell 1. The mounting shell for the door catch in this application consists of a shell and a cover. By providing a through hole for installing nails on the extension of the shell, the shell is firmly fixed to the door leaf using nails. This mechanical fixing method replaces the traditional adhesive, greatly improving the connection strength. The cover is assembled on the shell, making the overall door catch mounting shell more aesthetically pleasing. In addition, the use of nails for fixing can effectively resist the effects of temperature and humidity changes and vibrations caused by frequent opening and closing of the door leaf, avoiding loosening or falling off, and ensuring that the door catch can stably perform its locking and positioning functions for a long time. The mounting shell of this application has a simple structure and reasonable design of shell and cover, which facilitates manufacturing and subsequent assembly processes in the production process, helps to reduce the time efficiency of manual operation and the production cost of the product, and shortens the production cycle of the product.
[0031] The outer extension 11 is provided with a guide rail 112 on the side facing the cover 2, and a sliding cavity 21 is provided on the inner wall of the cover 2. The cover 2 is slidably assembled with the outer extension 11 through the cooperation between the sliding cavity 21 and the guide rail 112. The connection structure between the cover and the outer extension is simple, and the sliding operation is convenient for users.
[0032] The guide rail 112 has an L-shaped structure. The first end of the guide rail 112 is connected to the extension portion 11, and the second end of the guide rail 112 extends outward from the extension portion 11. The guide rail has a simple structure, which facilitates the production of the housing.
[0033] The second end of the guide rail 112 forms a channel 113 between the outer extension 11 and the cover 2 for guiding and limiting the cover body 2. The channel helps to guide and limit the cover body in the channel portion when it is assembled with the outer extension, thereby further improving the stability of the connection between the cover body and the outer extension.
[0034] The housing 1 is provided with a protrusion 12, and the cover 2 is provided with an inner groove 22 corresponding to the protrusion 12. When the cover 2 is installed on the housing 1, the protrusion 12 is located in the inner groove 22. The cooperation between the protrusion and the inner groove helps to improve the stability of the cover on the housing.
[0035] The protrusion 12 forms a support portion 13 between the top surface of the housing 1 and the support portion 2. When the cover is assembled onto the housing, the top surface of the cover is in contact with the top surface of the support portion.
[0036] The protrusions 12 are located on the front and left and right sides of the housing 1, and the protrusions 12 are connected to the second end of the guide rail 112, which further enhances the stability of the housing structure.
[0037] The housing 1 includes an installation cylinder 14 and a recessed receiving cavity 15 at the lower part of the housing 1. The installation cylinder 14 is connected to the receiving cavity 15.
[0038] It also includes multiple sets of connectors, one end of which is connected to the mounting cylinder, and the other end of which is connected to the inner wall of the housing.
[0039] The guide rail is provided in two sets, and the two sets of guide rails are spaced apart on the extension portion. The through hole provided on the extension portion is located between the two sets of guide rails.
[0040] Example 2: As shown in Figures 1-5, the door catch includes a pull rod 31, a magnetic component 32, and a connecting structure for the door catch mounting shell. The vertical length of the pull rod is greater than the height of the mounting cylinder. The pull rod 31 is movably fitted inside the mounting cylinder 14. The magnetic component 32 is connected to the pull rod 31 and is located inside the accommodating cavity 15. The door catch also includes a base plate 34 with nail holes. The base plate is installed on the ground at a position corresponding to the door catch by the engagement of nails with the nail holes. The base plate is made of a magnetically attracted metal material. When the door is opened, the door catch moves towards the base plate, and the magnetic component attracts the base plate.
[0041] A noise-reducing plate is provided on the side of the magnetic attractor facing the base plate to reduce the noise generated when the magnetic attractor attracts the base plate.
[0042] The base plate is made of iron sheet.
[0043] The pull rod is connected to a seat 33 with an opening at one end and a bottom at the other end. The magnetic suction element 32 is assembled inside the seat 33, and the seat is located inside the accommodating cavity.
[0044] The pull rod is provided with a limiting piece at the end away from the base. The outer diameter of the limiting piece is larger than the inner diameter of the mounting cylinder to prevent the pull rod from coming off the mounting cylinder.
[0045] It also includes an elastic element, with the side of the pull rod 31 away from the magnetic attractor 32 exposed outside the mounting cylinder 14, and the elastic element is fitted onto the exposed side of the pull rod 31.
[0046] The mounting housing for the door closer in this application consists of a housing and a cover. Through holes for mounting nails are provided on the outer extension of the housing, allowing the housing to be securely fixed to the door leaf using nails. This mechanical fixing method replaces traditional adhesive tape, greatly improving the connection strength. Furthermore, nail fixing effectively resists the effects of temperature and humidity changes, as well as vibrations caused by frequent opening and closing of the door leaf, preventing loosening or detachment and ensuring the door closer's long-term stable locking and positioning functions. The mounting housing of this application has a simple and reasonable structure, facilitating manufacturing and subsequent assembly processes. This reduces the time required for manual operation, lowers production costs, and shortens the product's production cycle.
[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A connecting structure for a door catch mounting shell, comprising a shell and a cover, characterized in that: The rear side of the housing is provided with an upwardly extending extension, and a through hole for installing nails is provided on the extension. The cover is assembled on the housing. A guide rail is provided on the side of the extension facing the cover. A sliding cavity is provided on the inner wall of the cover. The cover is slidably assembled with the extension through the cooperation between the sliding cavity and the guide rail.
2. The connection structure of the door catch mounting shell according to claim 1, characterized in that: The guide rail has an L-shaped structure, with its first end connected to the outer extension and its second end extending outward from the outer extension.
3. The connection structure of the door catch mounting shell according to claim 2, characterized in that: A channel for guiding and limiting the cover is formed between the second end of the guide rail and the extension portion.
4. The connection structure of the door catch mounting shell according to claim 1, characterized in that: The housing is provided with a protrusion, and the cover is provided with a recessed groove corresponding to the protrusion. When the cover is installed on the housing, the protrusion is located in the recessed groove.
5. The connection structure of the door catch mounting shell according to claim 4, characterized in that: The protrusion forms a support portion for supporting the cover between itself and the top surface of the shell.
6. The connection structure of the door catch mounting housing according to claim 4, characterized in that: The protrusions are located on the front and left and right sides of the housing, and the protrusions are connected to the second end of the guide rail.
7. The connection structure of the door catch mounting housing according to any one of claims 1-6, characterized in that: An installation cylinder is provided inside the housing, and a recessed receiving cavity is provided in the lower part of the housing. The installation cylinder is connected to the receiving cavity.
8. A door catcher, comprising a pull rod, a magnetic component, and a connecting structure for the door catcher mounting housing as described in claim 7, characterized in that: The pull rod is movably fitted inside the mounting cylinder, and the magnetic suction element is connected to the pull rod and located inside the accommodating cavity.
9. The door catch according to claim 8, characterized in that: It also includes an elastic element, wherein the portion of the pull rod away from the magnetic element is exposed in the mounting cylinder, and the elastic element is fitted onto the exposed side of the pull rod.