Fabricated building door-shaped component quick locking device
By designing a quick-locking device for portal components in prefabricated buildings, a combination of connecting holes and moving parts is used to achieve quick locking and disassembly, solving the problem of cumbersome installation of portal components in prefabricated buildings and improving construction efficiency and industrialization level.
Patent Information
- Application Number
- CN202520178375.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-05
AI Technical Summary
The installation process of prefabricated building portal components is cumbersome, and the connection node design is complex, requiring high-precision adjustments and repeated operations.
A quick-locking device for prefabricated building portal components was designed, including the component body, prefabricated wall panel and connecting plate. It achieves quick locking and disassembly through the combination of connecting holes, connectors and moving parts, eliminating the need for tools and using a pressing method to fix it.
It simplifies the installation process, reduces labor costs, improves construction efficiency, is suitable for industrialized production models, and promotes the modernization of the construction industry.
Smart Images

Figure CN223824354U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of prefabricated building technology, specifically, it relates to a quick locking device for door-shaped components of prefabricated buildings. Background Technology
[0002] Prefabricated portal frame components are a type of prefabricated component used in prefabricated construction. They typically consist of two side panels and a top panel, forming a portal-like structure used for doors and windows. These components are prefabricated in a factory and then transported to the construction site for assembly and installation, improving construction efficiency and aligning with environmental protection and sustainable development principles. As the prefabricated building market continues to expand, portal frame components, as a crucial type of prefabricated component, are experiencing sustained growth in market demand.
[0003] Although the initial intention behind prefabricated portal frame components was to improve efficiency and convenience, several technical challenges remain in practical applications, leading to slow and cumbersome installation processes. For example, traditional door and window installation methods are still widely used in prefabricated buildings, but these methods have numerous drawbacks. The installation process requires complex positioning and fixing operations. Furthermore, the connection nodes between portal frame components and other prefabricated components or cast-in-place structures are complex to design, requiring high-precision installation and repeated adjustments. Utility Model Content
[0004] In view of this, the present invention provides a quick locking device for prefabricated building door components, which can solve the problem of cumbersome installation process of existing door components.
[0005] This utility model is implemented as follows:
[0006] This utility model provides a quick locking device for prefabricated building portal-shaped components, including a component body, a prefabricated wall panel, and a connecting plate. The component body has a portal-shaped structure and is fixedly connected to the connecting plate. The upper surface of the connecting plate is flush with the upper surface of the component body, and the thickness of the connecting plate is less than the thickness of the component body. The interior angle formed by the component body and the connecting plate is a right angle. The component body and the prefabricated wall panel are detachably connected through the connecting plate. Connecting holes are provided at the edges of both the connecting plate and the prefabricated wall panel. Connecting members and moving members are provided inside the connecting holes. The connecting members are sleeved on the outside of the moving members, and the connecting members and moving members pass through the connecting holes to fix the connecting plate and the prefabricated wall panel.
[0007] Based on the above technical solution, the quick locking device for prefabricated building door components of this utility model can be further improved as follows:
[0008] The connecting hole includes a first channel and a second channel. The first channel is disposed on the connecting plate, and the second channel is disposed on the precast wall panel. The first channel has a cylindrical structure and penetrates through the connecting plate. The second channel is composed of cylindrical, frustum-shaped, and cylindrical shapes connected end to end from top to bottom.
[0009] Furthermore, the diameter of the first channel is the same as the diameter of the uppermost cylindrical structure of the second channel, and the diameter of the lowermost cylindrical structure of the second channel is greater than the diameter of the uppermost cylindrical structure of the first channel.
[0010] Furthermore, the connector includes a nail head, a first nail tube, a second nail tube, and a through hole. The nail head is a disc-shaped structure with a central depression. The center point of the nail head depression is fixedly connected to one end of the first nail tube, and the other end of the first nail tube is fixedly connected to one end of the second nail tube. Both the first nail tube and the second nail tube are hollow cylindrical structures.
[0011] Furthermore, the diameter of the nail head is larger than the diameter of the first nail tube, the diameter of the first nail tube is larger than the diameter of the second nail tube, the diameter of the first nail tube is larger than the diameter of the first channel, and the second nail tube is adapted to the first channel;
[0012] The second nail cylinder is provided with two symmetrical through holes;
[0013] The sum of the depth of the first channel and the depth of the uppermost cylindrical structure of the second channel is the same as the distance from the first nail tube to the upper edge of the second nail tube, and the depth of the connecting hole is greater than the length of the second nail tube.
[0014] Furthermore, the movable component includes a pressing head, a moving rod, a spring, a limiting ball, and a limiting member. The lower bottom surface of the pressing head is fixedly connected to the moving rod. The first channel is sleeved on the outside of the moving rod. The spring is wound around the moving rod. One end of the spring is fixedly connected to the inner wall of the first channel, and the other end of the spring is fixedly connected to the moving rod. The lower bottom surface of the moving rod is fixedly connected to the limiting member. Two limiting balls are placed between the moving rod and the limiting member.
[0015] Furthermore, the limiting component includes a connecting post and a limiting block. The connecting post is fixedly connected to the limiting block. One end of the connecting post is fixedly connected to the moving rod, and the other end of the connecting post is fixedly connected to the limiting block. The connecting post has a cylindrical structure, and the limiting block has a structure composed of a frustum and a cylinder.
[0016] Furthermore, the diameter of the connecting column is the same as the diameter of the top surface of the frustum of the limiting block, and the diameter of the moving rod is the same as the diameter of the bottom surface of the frustum of the limiting block.
[0017] Furthermore, the limiting ball is adapted to the through hole.
[0018] Furthermore, a ring of stop blocks is fixed on the side wall of the limiting block, and the overall diameter of the stop blocks and the limiting block is the same as the diameter of the second nail cylinder.
[0019] Compared with existing technologies, the advantages of the quick locking device for prefabricated building door components provided by this utility model are:
[0020] 1. It eliminates the need for tightening with tools such as wrenches; simply press to lock, greatly simplifying the installation process.
[0021] 2. The simple and intuitive operation of inserting and pressing allows workers to become proficient after simple training, reducing installation errors caused by complex operation.
[0022] 3. Because the installation process is faster and requires less manual time, labor costs are reduced.
[0023] 4. Corresponding to the quick-locking mechanism, this device also facilitates quick disassembly, making it easy to maintain, replace, or reassemble door components and prefabricated wall panels.
[0024] 5. The quick-locking device is suitable for the industrialized production mode of prefabricated buildings, and can be seamlessly integrated with the production, transportation and installation process of prefabricated components to improve overall construction efficiency.
[0025] 6. It is suitable for the rapid construction needs of prefabricated buildings, which can effectively promote the industrialization and modernization of the construction industry and accelerate the promotion and application of prefabricated buildings. Attached Figure Description
[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 A front view of a quick-locking device for prefabricated building door components;
[0028] Figure 2 A cross-sectional view of a quick-locking device for a prefabricated building door component in the pressed state;
[0029] Figure 3 A cross-sectional view of a quick-locking device for a prefabricated building door component in its unpressed state;
[0030] The attached diagram lists the components represented by each number as follows:
[0031] 10. Component body; 20. Precast wall panel; 30. Connecting plate; 40. Connecting hole; 41. First channel; 42. Second channel; 50. Connector; 51. Nail head; 52. First nail cylinder; 53. Second nail cylinder; 54. Through hole; 60. Moving part; 61. Pressing head; 62. Moving rod; 63. Spring; 64. Limiting ball; 65. Limiting part; 651. Connecting column; 652. Limiting block. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0033] like Figure 1-3 The illustration shows an embodiment of a quick-locking device for prefabricated building door-shaped components provided by this utility model. In this embodiment, it includes a component body 10, a prefabricated wall panel 20, and a connecting plate 30. The component body 10 has a door-shaped structure and is fixedly connected to the connecting plate 30. The upper surface of the connecting plate 30 is flush with the upper surface of the component body 10. The thickness of the connecting plate 30 is less than the thickness of the component body 10. The interior angle formed by the component body 10 and the connecting plate 30 is a right angle. The component body 10 and the prefabricated wall panel 20 are detachably connected through the connecting plate 30. Connection holes 40 are provided at the edges of the connecting plate 30 and the prefabricated wall panel 20. Connecting parts 50 and 60 are provided inside the connection holes 40. The connecting parts 50 are sleeved on the outside of the 60. The connecting parts 50 and 60 pass through the connection holes 40 to fix the connecting plate 30 and the prefabricated wall panel 20.
[0034] The connecting hole 40, the connector 50, and the moving part 60 are all made of alloy.
[0035] In the above technical solution, the connecting hole 40 includes a first channel 41 and a second channel 42. The first channel 41 is disposed on the connecting plate 30, and the second channel 42 is disposed on the precast wall panel 20. The first channel 41 is a cylindrical structure and passes through the connecting plate 30. The second channel 42 is cylindrical, frustum-shaped and cylindrical from top to bottom, and the ends of the two channels are connected.
[0036] Furthermore, in the above technical solution, the diameter of the first channel 41 is the same as the diameter of the uppermost cylindrical structure of the second channel 42, and the diameter of the lowermost cylindrical structure of the second channel 42 is greater than the diameter of the uppermost cylindrical structure of the first channel 41.
[0037] Furthermore, in the above technical solution, the connector 50 includes a nail head 51, a first nail cylinder 52, a second nail cylinder 53, and a through hole 54. The nail head 51 is a disc-shaped structure with a central depression. The center point of the depression of the nail head 51 is fixedly connected to one end of the first nail cylinder 52, and the other end of the first nail cylinder 52 is fixedly connected to one end of the second nail cylinder 53. Both the first nail cylinder 52 and the second nail cylinder 53 are hollow cylindrical structures.
[0038] Furthermore, in the above technical solution, the diameter of the nail head 51 is larger than the diameter of the first nail tube 52, the diameter of the first nail tube 52 is larger than the diameter of the second nail tube 53, the diameter of the first nail tube 52 is larger than the diameter of the first channel 41, and the second nail tube 53 is adapted to the first channel 41.
[0039] The second nail cylinder 53 has two symmetrical through holes 54;
[0040] The sum of the depth of the first channel 41 and the depth of the uppermost cylindrical structure of the second channel 42 is the same as the distance from the first nail tube 52 to the upper edge of the second nail tube 53, and the depth of the connecting hole 40 is greater than the length of the second nail tube 53.
[0041] Furthermore, in the above technical solution, the movable component 60 includes a pressing head 61, a moving rod 62, a spring 63, a limiting ball 64, and a limiting component 65. The lower bottom surface of the pressing head 61 is fixedly connected to the moving rod 62. The first channel 41 is sleeved on the outside of the moving rod 62. The spring 63 is wound around the moving rod 62. One end of the spring 63 is fixedly connected to the inner wall of the first channel 41, and the other end of the spring 63 is fixedly connected to the moving rod 62. The lower bottom surface of the moving rod 62 is fixedly connected to the limiting component 65. Two limiting balls 64 are placed between the moving rod 62 and the limiting component 65.
[0042] Furthermore, in the above technical solution, the limiting member 65 includes a connecting post 651 and a limiting block 652. The connecting post 651 and the limiting block 652 are fixedly connected. One end of the connecting post 651 is fixedly connected to the moving rod 62, and the other end of the connecting post 651 is fixedly connected to the limiting block 652. The connecting post 651 is a cylindrical structure, and the limiting block 652 is a structure composed of a frustum and a cylinder.
[0043] The lower end of the movable rod 62 has an inverted frustum shape.
[0044] The inverted frustum structure of the moving rod 62 is symmetrically distributed with the frustum-shaped structure of the limiting block 652.
[0045] Furthermore, in the above technical solution, the diameter of the connecting column 651 is the same as the diameter of the top surface of the frustum of the limiting block 652, and the diameter of the moving rod 62 is the same as the diameter of the bottom surface of the frustum of the limiting block 652.
[0046] Furthermore, in the above technical solution, the limiting ball 64 is adapted to the through hole 54.
[0047] Furthermore, in the above technical solution, a ring of stop blocks is fixed on the side wall of the limiting block 652, and the overall diameter of the stop blocks and the limiting block 652 is the same as the diameter of the second nail cylinder 53.
[0048] When the connector is not inserted into the connector hole 40, the spring 63 is at its normal length. At this time, one side of the limiting ball 64 is in contact with the limiting block 652, and the other side passes through the through hole 54 and is exposed to the outside.
[0049] Specifically, the principle of this utility model is as follows: when the connector is not inserted into the connecting hole 40, the spring 63 is at its normal length. At this time, one side of the limiting ball 64 is in contact with the limiting block 652, and the other side passes through the through hole 54 and is exposed to the outside.
[0050] In use, the connecting plate 30 is placed on the precast wall panel 20, and the first channel 41 and the second channel 42 are overlapped and aligned. The connector 50 is inserted into the connecting hole 40 until the nail head 51 contacts the top surface of the connecting plate 30. At the same time as insertion, the pressing head 61 is pressed. At this time, the first nail cylinder 52 passes through the first channel 41 and the second channel 42 and extends into the interior of the precast wall panel 20. The pressing head 61 drives the moving rod 62 to move downward while compressing the spring 63. The connecting column 651 and the limiting block 652 move downward. Since the space that can accommodate the limiting ball 64 becomes larger, the limiting ball 64 rolls into the interior of the second nail cylinder 53 until the limiting ball 64 is completely rolled into the interior of the second nail cylinder 53. At this time, the limiting ball 64 contacts the connecting column 651. After insertion, release the pressure on the pressing head 61. At this time, the spring 63 rebounds and drives the pressing head 61 to move upward. The limiting part 65 resets and pushes the limiting ball 64 to roll back onto the limiting ball 64. At this time, one side of the limiting ball 64 contacts the limiting block 652, and the other side contacts the frustum-shaped part of the second channel 42. The limiting ball 64 fixes the entire connector 50 inside the connecting hole 40, realizing the quick locking and installation of the prefabricated wall panel 20 and the component body 10.
[0051] 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 variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included 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 quick-locking device for prefabricated building door-shaped components, comprising a component body (10), a prefabricated wall panel (20), and a connecting plate (30), wherein the component body (10) is a door-shaped structure, the component body (10) is fixedly connected to the connecting plate (30), the upper surface of the connecting plate (30) is flush with the upper surface of the component body (10), the thickness of the connecting plate (30) is less than the thickness of the component body (10), the interior angle formed by the component body (10) and the connecting plate (30) is a right angle, and the component body (10) and the prefabricated wall panel (20) are detachably connected through the connecting plate (30); characterized in that, Both the connecting plate (30) and the precast wall panel (20) have connecting holes (40) at their edges. A connector (50) and a movable component (60) are provided inside the connecting hole (40). The connector (50) is sleeved on the outside of the movable component (60). The connector (50) and the movable component (60) pass through the connecting hole (40) to fix the connecting plate (30) and the precast wall panel (20).
2. The quick-locking device for prefabricated building door components according to claim 1, characterized in that, The connecting hole (40) includes a first channel (41) and a second channel (42). The first channel (41) is disposed on the connecting plate (30), and the second channel (42) is disposed on the precast wall panel (20). The first channel (41) is a cylindrical structure and penetrates the connecting plate (30). The second channel (42) is cylindrical, frustum-shaped, and cylindrical from top to bottom, with the ends connected.
3. The quick-locking device for prefabricated building door components according to claim 2, characterized in that, The diameter of the first channel (41) is the same as the diameter of the uppermost cylindrical structure of the second channel (42), and the diameter of the lowermost cylindrical structure of the second channel (42) is greater than the diameter of the uppermost cylindrical structure of the first channel (41).
4. A quick-locking device for prefabricated building door components according to claim 3, characterized in that, The connector (50) includes a nail head (51), a first nail tube (52), a second nail tube (53), and a through hole (54). The nail head (51) is a disc-shaped structure with a central depression. The center point of the depression of the nail head (51) is fixedly connected to one end of the first nail tube (52), and the other end of the first nail tube (52) is fixedly connected to one end of the second nail tube (53). Both the first nail tube (52) and the second nail tube (53) are hollow cylindrical structures.
5. A quick-locking device for prefabricated building door components according to claim 4, characterized in that, The diameter of the nail head (51) is greater than the diameter of the first nail tube (52), the diameter of the first nail tube (52) is greater than the diameter of the second nail tube (53), the diameter of the first nail tube (52) is greater than the diameter of the first channel (41), and the second nail tube (53) is adapted to the first channel (41). The second nail cylinder (53) is provided with two symmetrical through holes (54); The sum of the depth of the first channel (41) and the depth of the uppermost cylindrical structure of the second channel (42) is the same as the distance from the first nail tube (52) to the upper edge of the second nail tube (53), and the depth of the connecting hole (40) is greater than the length of the second nail tube (53).
6. A quick-locking device for prefabricated building door components according to claim 5, characterized in that, The movable component (60) includes a pressing head (61), a moving rod (62), a spring (63), a limiting ball (64), and a limiting member (65). The lower bottom surface of the pressing head (61) is fixedly connected to the moving rod (62). The first channel (41) is sleeved on the outside of the moving rod (62). The spring (63) is wound around the moving rod (62). One end of the spring (63) is fixedly connected to the inner wall of the first channel (41), and the other end of the spring (63) is fixedly connected to the moving rod (62). The lower bottom surface of the moving rod (62) is fixedly connected to the limiting member (65). Two limiting balls (64) are placed between the moving rod (62) and the limiting member (65).
7. A quick-locking device for prefabricated building door components according to claim 6, characterized in that, The limiting component (65) includes a connecting post (651) and a limiting block (652). The connecting post (651) is fixedly connected to the limiting block (652). One end of the connecting post (651) is fixedly connected to the moving rod (62), and the other end of the connecting post (651) is fixedly connected to the limiting block (652). The connecting post (651) is a cylindrical structure, and the limiting block (652) is a structure composed of a frustum and a cylinder.
8. A quick-locking device for prefabricated building door components according to claim 7, characterized in that, The diameter of the connecting column (651) is the same as the diameter of the top surface of the frustum of the limiting block (652), and the diameter of the moving rod (62) is the same as the diameter of the bottom surface of the frustum of the limiting block (652).
9. A quick-locking device for prefabricated building door components according to claim 8, characterized in that, The limiting ball (64) is adapted to the through hole (54).
10. A quick-locking device for prefabricated building door components according to claim 9, characterized in that, A ring of stop blocks is fixed on the side wall of the limiting block (652), and the overall diameter of the stop blocks and the limiting block (652) is the same as the diameter of the second nail cylinder (53).