Lockset mounting structure and door body

CN224742162UActive Publication Date: 2026-09-11GUANGDONG MINGMEN LOCKS IND
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Patent Information

Application Number
CN202521855445.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-09-11
Estimated Expiration
2035-08-29

AI Technical Summary

Technical Problem

该方案虽然避免了在门框外侧打孔,但其结构复杂,零部件数量多,组装工序繁琐,提高了制造成本和安装工时

Benefits of technology

1.通过固定件与挡盖上倾斜限位面的直接配合产生夹紧力,完全省去了现有技术中复杂的形连接件和多组紧固件系统,显著减少了零部件数量和材料成本;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to lock installation technical field discloses a lock installation structure and door body, a lock installation structure is installed in the door frame, include: the lock body is worn in the door frame, the baffle is arranged in the lock body side, the fixed part is arranged on the lock body, the limiting portion is arranged in the baffle inboard, wherein, the installation hole that the lock body is worn is set up on the door frame, the guide inclined plane is set up on the limiting portion, wherein, when the fixed part is made to abut and act on the guide inclined plane by sliding the end, thereby generating an axial component force that drives the baffle to move to the door frame one side surface, makes the baffle tightly press on the door frame one side. The utility model sets up the fixed part on the lock body, and the limiting portion on the baffle is resisted, the force between the lock body, the baffle and the door frame makes the lock body fixed on the door frame not loose, makes the door leaf frame whole more complete, further improved the degree of appearance.
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Description

Technical Field

[0001] This utility model relates to the field of lock installation technology, specifically to a lock installation structure and a door body. Background Technology

[0002] Existing aluminum frame door locks typically require drilling holes in the door frame along the door leaf edge during installation, and then using fixing screws to secure the inner shell of the lock to the door frame edge. This installation method is cumbersome and can compromise the integrity of the door frame. To cover the screw holes and screws, an additional cover plate is often needed on the outside of the door frame, increasing the number of parts, installation costs, and the overall aesthetics of the door.

[0003] Existing door lock installation methods often use multiple connectors and fasteners to secure the lock. While this method avoids drilling holes on the outside of the door frame, it results in a complex structure, numerous parts, and cumbersome assembly processes, increasing manufacturing costs and installation time.

[0004] Therefore, there is an urgent need for a lock installation structure that is simple in structure, easy to install, and does not damage the integrity of the door frame. Utility Model Content

[0005] This utility model was developed to solve the above-mentioned technical problems. Its purpose is to provide a lock installation structure and door body that can achieve fast and stable installation of locks without damaging the door frame, while simplifying the overall structure, reducing the number of parts, and lowering production costs.

[0006] To achieve the above objectives, this utility model provides a lock mounting structure for installation on a door frame, comprising: a lock body passing through the door frame, a cover disposed on one side of the lock body, a fixing member disposed on the lock body, and a limiting part disposed inside the cover; wherein... An installation hole is provided on the door frame for the lock body to pass through; A guide slope is provided on the limiting part; wherein, When the fixed member is slid so that its end abuts against and acts on the guide slope, an axial component force is generated that drives the cover to move toward the inner surface of the door frame, so that the cover is pressed tightly against the inner side of the door frame.

[0007] Preferably, there are two covers, and the two covers are respectively disposed on the inner and outer sides of the door frame; A sliding hole is provided inside the lock body, which extends axially and penetrates to the inner and outer sides of the door panel.

[0008] Preferably, the fixing element includes: a fixing rod and a fixing screw; wherein, The fixing rod is slidably disposed within the sliding hole; An internal threaded hole is provided at one end of the fixing rod, and the fixing screw is threadedly connected to the internal threaded hole.

[0009] Preferably, the end of the fixing rod without the internal threaded hole constitutes a first abutting end, which is used to abut against the limiting part of the cover on one side; The end of the fixing screw forms a second abutment end, which is used to abut against the limiting part of the other side cover.

[0010] Preferably, the cross-section of one end of the fixing rod is polygonal or irregular.

[0011] Preferably, the number of the cover is one, which is installed on one side of the lock body; The fixing component is a fixing screw. Preferably, the lock body is located on one side inside the door frame and abuts against the inner surface of the door frame; An internal threaded hole, on the same side as the cover, is provided on the other side of the lock body; The fastener is threadedly connected to the internal threaded hole, and the end of the fastener is used to abut against the limiting part.

[0012] Preferably, the angle between the guide slope and the inner wall plane of the cover is an acute angle.

[0013] Preferably, the limiting part is a boss, wedge, or inclined groove structure.

[0014] According to one embodiment of the present invention, a door body is provided, characterized in that: It includes a door panel, a door frame fixedly installed on the side of the door panel, and a lock mounting structure installed on the door panel.

[0015] Based on the above description and practice, the lock mounting structure of this utility model has the following advantages compared with the traditional lock mounting structure: 1. The clamping force is generated by the direct cooperation between the fastener and the inclined limiting surface on the cover, which completely eliminates the complex connecting parts and multiple fastener systems in the prior art, and significantly reduces the number of parts and material costs; 2. During installation, simply insert the lock body into the door frame hole, cover it with the retaining cover, and then tighten or push one (or a group) of fixing parts to complete the fixing. The operation steps are greatly simplified, requiring no professional tools or complicated adjustments, and installation efficiency is significantly improved; 3. The entire installation process is carried out inside the door frame, without the need to drill holes in the visible surface of the door frame, perfectly maintaining the integrity and aesthetics of the door frame and meeting users' demand for a high-quality appearance; 4. The axial locking force generated by the inclined plane mechanism is huge and reliable, ensuring the stability of the lock during long-term use and avoiding loosening that may occur due to vibration or other reasons. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a lock mounting structure in one embodiment of the present invention, in which the number of covers is two.

[0017] Figure 2 This is a schematic diagram of a lock mounting structure in one embodiment of the present invention, in which the number of covers is one.

[0018] Figure 3 This is a schematic diagram of the cover structure involved in one embodiment of the present utility model.

[0019] The attached figures are labeled as follows: 1. Door frame; 11. Door panel; 2. Lock body; 3. First cover; 31. Second cover; 4. Fixing rod; 41. Fixing screw; 42. Internal threaded hole; 5. Limiting part; 51. Guide slope. Detailed Implementation

[0020] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0021] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do 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.

[0022] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] This embodiment discloses a lock mounting structure. Figure 1 The diagram shows a lock mounting structure with two covers. Figure 2 This diagram shows a lock mounting structure with one cover. Figure 3 The overall structure of the cover is shown.

[0024] Example 1 like Figure 1 As shown, this embodiment provides a lock mounting structure and a door body, which are applied to a framed door, the framed door including a door panel 11 and a door frame 1 fixedly installed on the side of the door panel 11.

[0025] Furthermore, a circular mounting hole penetrating its thickness is provided on the door frame 1. A through lock body hole is provided on the door frame 1 for the lock body 2 to pass through. The lock body 2 passes through the mounting hole from the outside of the door frame 10. The mounting hole is used to accommodate the rear end portion of the lock body 2 and provide axial support for it.

[0026] Furthermore, the lock body 2 is generally cylindrical, and its interior is equipped with conventional locking mechanisms such as a latch, which is prior art and will not be described in detail here. One end of the lock body 2 located on the outside of the door has an enlarged portion extending radially outwards, which abuts against the outer surface of the door frame 1. The interior of the lock body 2 has a sliding hole running through both sides of its body along its axial direction. The cross-section of this sliding hole is preferably machined into a non-circular irregular shape, such as square, hexagonal, or D-shaped.

[0027] Furthermore, both the first cover 3 and the second cover 31 are semi-shell structures, respectively covering the inner and outer sides of the lock body 2. The first cover 3 is located on the inner side of the door, and the second cover 31 is located on the outer side of the door. The edges of both covers can abut against the surface of the door panel 11, mainly used to conceal the internal structure of the lock body 2 and improve aesthetics. A first limiting part 5 is integrally stamped on the inner side wall of the first cover 3. Correspondingly, a second limiting part 5 is integrally stamped on the inner side wall of the second cover 31. Both the first limiting part 5 and the second limiting part 5 are boss structures, and an inclined guide slope 51 is machined on the side of the boss. The angle between the guide slope 51 and the inner wall plane of each cover is an acute angle, so as to ensure structural strength while providing effective axial force.

[0028] Furthermore, the fixing rod 4 is slidably disposed within the sliding hole of the lock body 2. The cross-sectional shape of the fixing rod 4 matches the shape of the sliding hole (e.g., both are square), which allows the fixing rod 4 to slide freely along the axial direction of the lock body 2 within the sliding hole, but its circumferential rotation is completely constrained by the sliding hole. One end of the fixing rod 4 located on the inner side of the door has an internally threaded hole 42, while the other end located on the outer side of the door forms a smooth first abutment end. The fixing screw 41 can be threaded into the internally threaded hole 42 on the fixing rod 4. The screw head or the end of the shank of the fixing screw 41 forms a second abutment end.

[0029] During installation, first insert the lock body 2 from the outside of the door frame 1, allowing it to pass through the lock body hole on the door frame 1 until its enlarged front end is pressed against the outer surface of the door frame 1. At the same time, ensure that the rear end of the lock body 2 is accurately inserted into the mounting position on the side of the door panel 11. Then, place the first cover 3 and the second cover 31 on the inner and outer sides of the door, respectively, so that they cover the lock body 2 and ensure that their edges abut against the surface of the door panel 11.

[0030] Next, the fixing rod 4 is inserted into the sliding hole of the lock body 2 from the inside of the door, so that its first abutting end faces the second limiting part 5 of the second cover 31, and at the same time, the second abutting end of the fixing screw 41, which has been initially connected with the fixing rod 4, faces the first limiting part 5 of the first cover 3.

[0031] Use an appropriate tool (such as a screwdriver or wrench) to tighten the fixing screw 41. Since the fixing rod 4 is constrained by the sliding hole and cannot rotate, tightening the fixing screw 41 will cause it to screw in relative to the fixing rod 4, thereby pushing the fixing rod 4 and the fixing screw 41 as a whole to move inward and outward towards the door within the sliding hole. Specifically, the first abutting end of the fixing rod 4 moves outward towards the door and finally abuts against and acts on the second guide slope on the second cover 31; at the same time, the second abutting end of the fixing screw 41 moves inward towards the door and abuts against and acts on the first guide slope 51 on the first cover 3.

[0032] Furthermore, since the guide ramp 51 is inclined, the axial thrust F1 generated by the fixing rod 4 and the fixing screw 41 will be decomposed on the ramp, generating a normal force F2 perpendicular to the ramp and a tangential force F3 parallel to the ramp. This tangential force F3 is the effective axial force driving the cover to move towards the surface of the door frame 1. Under the action of this axial force F3, the first cover 3 is forcefully pushed towards the inner surface of the door frame 1, and the second cover 31 is pushed towards the outer surface of the door frame 1.

[0033] By continuously tightening the fixing screws 41, the first cover 3 is finally pressed tightly against the inner surface of the door frame 1, while the second cover 31 cooperates with the enlarged part at the front end of the lock body 2, firmly clamping the door frame 1 from both the inside and outside of the door. The lock body 2, the first cover 3, the second cover 31, and the door frame 1 achieve self-locking fixation through the aforementioned mechanical interaction force. The entire installation process does not require drilling holes and fixing with screws on the visible outer surface of the door frame 1, greatly improving the overall aesthetics and integrity of the door.

[0034] Example 2 like Figure 2 As shown, this embodiment provides another lock mounting structure. Its main difference from Embodiment 1 is that the cover is only located on the inner side of the door.

[0035] The lock mounting structure in this embodiment mainly includes a lock body 2, a first cover 3, and a fixing screw 41.

[0036] Furthermore, the first end of the lock body 2 is also provided with an enlarged portion. Unlike Embodiment 1, the other end of the lock body 2 (the end located inside the door) does not enter the mounting position of the door panel 11, but instead directly forms a bearing portion that abuts against the inner surface of the door panel 11. Inside the lock body 2, an internal threaded hole 42 is provided, the axis of which is substantially parallel to the axis of the lock body 2.

[0037] Furthermore, the first cover 3 has a semi-shell structure, covering the inner side of the lock body 2. A first limiting part 5 with a guide slope 51 is also provided on its inner wall. The fixing component is a fixing screw 41, which can be threaded into the internal threaded hole 42 inside the lock body 2.

[0038] During installation, first insert the lock body 2 from the outside of the door frame 1 and let it pass through the lock body hole on the door frame 1 until the enlarged part at its front end abuts against the outer surface of the door frame 1, while its inner supporting part stably abuts against the inner surface of the door panel 11. Then, place the first cover 3 on the inside of the door and cover the lock body 2.

[0039] The fixing screw 41 is screwed into the internal threaded hole 42 of the lock body 2 from the outside of the first cover 3. As the fixing screw 41 is screwed in, its end will abut against and act on the first guide slope 51 on the first cover 3.

[0040] The mechanical principle is exactly the same as in Embodiment 1. The rotational force decomposes into an effective axial component force, which drives the first stop 3 to move toward the inner surface of the door frame 1 until it is tightly pressed against the door frame 1. At this time, the enlarged part at the front end of the lock body 2 and the first stop 3 clamp the door frame 1 from the outer and inner sides of the door, and the bearing part on the lock body 2 provides the necessary reverse support for this clamping force, thereby completing the stable installation of the lock.

[0041] This disclosure also provides a door body, which includes a door panel 11 and a door frame 1 fixedly installed on the side of the door panel 11. The door body uses any of the lock mounting structures in Embodiment 1 or Embodiment 2 described above to fix the lock to its door frame.

[0042] Specifically, a lock body hole is provided on the door frame 1. The door panel 11, as part of the door leaf, has a mounting position on its side or abuts against the supporting part of the lock body 2.

[0043] The lock is secured to the door frame 1 by clamping it from both the inside and outside with the enlarged portion of its lock body 2 and the cover, thereby firmly installing the entire lock onto the door.

[0044] Because the door adopts the aforementioned lock installation structure with no exposed screws, convenient installation, and reliable connection, it has the advantages of complete and beautiful appearance, high installation efficiency, and good structural stability.

[0045] This disclosure utilizes the mechanical interaction between the combination of the fixing rod 4 and the fixing screw 41 and the limiting part 5 with a specific tilt angle on the cover and its guide slope 51 to fix the lock body to the door frame without loosening. Finally, the door frame 1 is clamped by the cooperation between the cover and the enlarged part of the lock body. During installation, it is not necessary to set screws to fix the lock body 2 on the outer side of the door frame, nor is it necessary to set a cover plate to cover the screws on the outer side, making the door frame more complete and further improving the aesthetics, so as to meet the user's demand for a higher aesthetic appearance of the door.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lock mounting structure, installed on a door frame, characterized in that, include: The lock body is inserted into the door frame; a cover is provided on one side of the lock body; a fixing member is provided on the lock body; and a limiting part is provided inside the cover; wherein, An installation hole is provided on the door frame for the lock body to pass through; A guide slope is provided on the limiting part; wherein, When the fixed member is slid so that its end abuts against and acts on the guide slope, an axial component force is generated that drives the cover to move toward one side of the door frame, so that the cover is pressed tightly against one side of the door frame.

2. The lock mounting structure as described in claim 1, characterized in that, The number of the cover is two, and the two covers are respectively installed on the inner and outer sides of the door frame; A sliding hole is provided inside the lock body, which extends axially and penetrates to the inner and outer sides of the door panel.

3. The lock mounting structure as described in claim 2, characterized in that, The fastener includes: a fixing rod and a fixing screw; wherein... The fixing rod is slidably disposed within the sliding hole; An internal threaded hole is provided at one end of the fixing rod, and the fixing screw is threadedly connected to the internal threaded hole.

4. The lock mounting structure as described in claim 3, characterized in that, The end of the fixing rod without the internal threaded hole forms a first abutting end, which is used to abut against the limiting part of the cover on one side; The end of the fixing screw forms a second abutment end, which is used to abut against the limiting part of the other side cover.

5. The lock mounting structure as described in claim 4, characterized in that, The cross-section of one end of the fixing rod is polygonal or irregular.

6. The lock mounting structure as described in claim 1, characterized in that, The number of the cover is one, which is installed on one side of the lock body; The fastener is a fixing screw.

7. The lock mounting structure as described in claim 6, characterized in that, The lock body is located on one side inside the door frame, abutting against the inner surface of the door frame; An internal threaded hole, on the same side as the cover, is provided on the other side of the lock body; The fastener is threadedly connected to the internal threaded hole, and the end of the fastener is used to abut against the limiting part.

8. The lock mounting structure as described in any one of claims 1 to 7, characterized in that, The angle between the guide ramp and the inner wall plane of the cover is an acute angle.

9. The lock mounting structure as described in any one of claims 1 to 7, characterized in that, The limiting part is a boss, wedge, or inclined groove structure.

10. A door, characterized in that: It includes a door panel, a door frame fixedly installed on the side of the door panel, and a lock mounting structure installed on the door panel as described in any one of claims 1 to 9.