Forge piece structure of safety lock body of automatic door of high-speed rail

By using a forging process to integrally form the safety lock body of the high-speed rail automatic door, a continuous fiber flow direction and optimized force flow path are achieved, which solves the problems of poor structural strength and processing complexity of the lock body, and realizes the improvement of high strength, fatigue resistance and reliability.

CN224173886UActive Publication Date: 2026-04-28RUIAN HONGXING FORGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUIAN HONGXING FORGING CO LTD
Filing Date
2025-11-21
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing safety lock body structure of high-speed rail automatic doors has poor strength, is prone to cracks or breakage, and has high processing complexity, resulting in serious material waste and affecting reliability and safety.

Method used

The first, second, and third bosses are integrally formed using a forging process, creating a continuous and uniform fiber flow direction. Combined with the stepped structure and vertical wall surface, the force flow transmission path is optimized, reducing the amount of subsequent processing.

Benefits of technology

It improves the load-bearing capacity and fatigue resistance of the lock body, simplifies the processing procedures, enhances the stability and reliability of the structure, avoids stress concentration, and improves the overall strength and service life.

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Abstract

The utility model belongs to the technical field of high-speed rail automatic door safety, and provides a high-speed rail automatic door safety lock body forge piece structure which comprises a first boss, a second boss and a third boss. Wherein the first boss protrudes in the first direction and forms a first through groove extending in the first direction, and the first boss forms a U shape through the first through groove; the second boss and the first boss are integrally forged and formed and extend in the first direction, a second through groove which extends in the second direction and is communicated with the first through groove is formed in the second boss, the second direction is perpendicular to the first direction, and the second boss also forms a U shape through the second through groove; the third boss protrudes from the side, away from the first boss, of the second boss in the first direction, and the first boss, the second boss and the third boss form a stepped structure in the first direction.
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Description

Technical Field

[0001] This application belongs to the field of safety technology for high-speed railway automatic doors, specifically relating to a forged structure for a safety lock body of a high-speed railway automatic door. Background Technology

[0002] Currently, the safety lock body structure of high-speed rail automatic doors is typically manufactured using a multi-part welding or assembly method. This design suffers from low structural strength; stress concentration easily occurs at welded areas, leading to cracks or fractures during long-term use. Furthermore, the manufacturing process is difficult, requiring multiple parts to be manufactured separately before assembly, increasing complexity and production costs, and making it difficult to guarantee precision, thus affecting the reliability and security of the lock body. In addition, existing lock body structures often employ complex machining to create through slots and bosses, resulting in material waste and low processing efficiency, further exacerbating the problems of insufficient strength and manufacturing difficulties. Therefore, it is necessary to solve the above-mentioned technical problems. Summary of the Invention

[0003] The purpose of this application is to provide a forged structure for a safety lock body of a high-speed railway automatic door, so as to solve the technical problem of poor structural strength of the safety lock body of a high-speed railway automatic door in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a forged structure for a safety lock body of a high-speed railway automatic door, comprising:

[0005] A first boss protrudes along a first direction and forms a first through groove extending along the first direction. The first boss forms a "U" shape through the first through groove.

[0006] The second boss is integrally forged with the first boss and extends along the first direction. A second through groove is formed on the second boss, extending along the second direction and communicating with the first through groove. The second direction is perpendicular to the first direction. The second boss also forms a "U" shape through the second through groove.

[0007] The third protrusion protrudes from the side of the second protrusion away from the first protrusion along the first direction, and the first protrusion, the second protrusion and the third protrusion form a stepped structure in the first direction.

[0008] Optionally, a first outer wall surface for machining the target U-shaped groove is formed on the first boss, and a second outer wall surface for machining the target strip groove is also formed.

[0009] The second outer wall surface is distributed on both sides of the first through groove and is perpendicular to the first outer wall surface.

[0010] Optionally, an arc-shaped transition surface is formed between the first outer wall surface and the second outer wall surface.

[0011] Optionally, a third outer wall surface for machining the target waist-shaped hole is formed on the second boss, and a fourth outer wall surface for machining the target through hole is also formed.

[0012] The fourth outer wall surface is distributed on both sides of the second through groove and is perpendicular to the third outer wall surface.

[0013] Optionally, the fourth outer wall surface is parallel to the second outer wall surface.

[0014] Optionally, each of the first boss, the second boss, and the third boss has a transition fillet between adjacent surfaces.

[0015] Optionally, the contour centers of the first boss, the second boss, and the third boss are aligned.

[0016] The beneficial effects of the high-speed rail automatic door safety lock body forging structure provided in this application are as follows: Compared with the prior art, in the high-speed rail automatic door safety lock body forging structure provided in this application, the first boss, the second boss, and the third boss are integrally formed through forging, so that a continuous and uniform fiber flow direction is formed inside the material, effectively avoiding the stress concentration problem common in traditional welding or assembly structures, and significantly improving the load-bearing capacity and fatigue resistance. At the same time, the first and second through slots are directly formed during the forging process, reducing the amount of subsequent cutting processing and simplifying the processing steps of features such as U-shaped slots, strip slots, and waist-shaped holes. In addition, the stepped boss layout also optimizes the force flow transmission path, enabling the lock body to uniformly distribute stress when subjected to impact loads, further enhancing the stability and reliability of the lock body structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the forged safety lock body for high-speed rail automatic door in this embodiment. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of the forged safety lock body for high-speed rail automatic door in this embodiment. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the overall structure of the forged safety lock body for high-speed rail automatic door in this embodiment. Figure 3 ;

[0021] Figure 4 This is a schematic diagram of the target product of the forged structure of the safety lock body of the high-speed rail automatic door in the embodiments of this application.

[0022] In the figure, the following reference numerals are used: 101, first boss; 102, first through groove; 103, second boss; 104, second through groove; 105, third boss; 106, first outer wall surface; 107, second outer wall surface; 108, transition surface; 109, third outer wall surface; 110, fourth outer wall surface; 111, transition fillet; 201, target U-shaped groove; 202, target strip groove; 203, target waist-shaped hole; 204, target through hole. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] Please refer to the following: Figures 1 to 4 The present application provides a description of a forged structure for a safety lock body of a high-speed rail automatic door. This forged structure includes a first boss 101, a second boss 103, and a third boss 105. Wherein:

[0028] The first boss 101 protrudes along a first direction and forms a first through groove 102 extending along the first direction. The first boss 101 forms a "U" shape through the first through groove 102. The second boss 103 is integrally forged with the first boss 101 and extends along the first direction. A second through groove 104 is formed on the second boss 103, extending along a second direction and communicating with the first through groove 102. The second direction is perpendicular to the first direction. The second boss 103 also forms a "U" shape through the second through groove 104. The third boss 105 protrudes from the side of the second boss 103 away from the first boss 101 along the first direction. The first boss 101, the second boss 103, and the third boss 105 form a stepped structure in the first direction. For ease of explanation, the first direction and the second direction are referred to as... Figure 1 Let's take the x and y directions in the diagram as examples to illustrate.

[0029] According to the structure provided in this embodiment, the first boss 101, the second boss 103, and the third boss 105 are integrally formed through a forging process, resulting in a continuous and uniform fiber flow within the material. This effectively avoids the stress concentration problem common in traditional welded or assembled structures, significantly improving load-bearing capacity and fatigue resistance. Simultaneously, the first through groove 102 and the second through groove 104 are directly formed during the forging process, reducing subsequent machining and simplifying the processing steps for features such as U-shaped grooves, strip grooves, and waist-shaped holes. Furthermore, the stepped boss layout optimizes the force transmission path, enabling the lock body to uniformly distribute stress when subjected to impact loads, further enhancing the stability and reliability of the lock body structure.

[0030] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 A first outer wall surface 106 for machining the target U-shaped groove 201 and a second outer wall surface 107 for machining the target strip groove 202 are formed on the first boss 101. The second outer wall surfaces 107 are distributed on both sides of the first through groove 102 and are perpendicular to the first outer wall surface 106. According to the structure provided in this embodiment, since the second outer wall surfaces 107 are located on both sides of the first through groove 102 and their extension direction maintains a precise perpendicular relationship with the first outer wall surface 106, when the lock body is subjected to load, the force can be evenly transmitted along these vertically arranged walls, effectively avoiding the stress concentration problem caused by cutting fibers in traditional processing methods. This also significantly enhances the overall structural strength and deformation resistance of the high-speed rail automatic door safety lock body forging structure in this embodiment under complex stress conditions.

[0031] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4An arc-shaped transition surface 108 is formed between the first outer wall surface 106 and the second outer wall surface 107. According to the structure provided in this embodiment, since an arc-shaped transition surface 108 is provided between the first outer wall surface 106 and the second outer wall surface 107, and this transition surface 108 is integrally formed with the adjacent wall surface during the forging process, it can smoothly connect the stress surfaces in different directions, effectively disperse stress concentration, and thus significantly improve the fatigue strength and service life of the high-speed rail automatic door safety lock body forging structure under alternating loads in this embodiment.

[0032] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 The second boss 103 forms a third outer wall surface 109 for machining the target waist-shaped hole 203, and a fourth outer wall surface 110 for machining the target through hole 204. The fourth outer wall surface 110 is distributed on both sides of the second through groove 104 and is perpendicular to the third outer wall surface 109. According to the structure provided in this embodiment, the second boss 103 forms a third outer wall surface 109 for machining the target waist-shaped hole 203 and a fourth outer wall surface 110 for machining the target through hole 204, and the fourth outer wall surface 110 is distributed on both sides of the second through groove 104 and is perpendicular to the third outer wall surface 109. This prefabricated structure provides a precise positioning reference for subsequent hole machining, thereby ensuring machining accuracy while effectively avoiding the loss of lock body structural strength due to positioning deviation.

[0033] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 The fourth outer wall surface 110 is parallel to the second outer wall surface 107. According to the structure provided in this embodiment, since the fourth outer wall surface 110 is parallel to the second outer wall surface 107, the main reference surfaces of the entire forging form a unified orientation. This parallel layout ensures that the positioning references remain consistent during machining, thereby ensuring the relative positional accuracy between various structural elements and enhancing the overall stability of the high-speed rail automatic door safety lock body forging structure under complex stress conditions in this embodiment.

[0034] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 Each of the first boss 101, the second boss 103, and the third boss 105 has a transition fillet 111 between adjacent surfaces. According to the structure provided in this embodiment, since each of the first boss 101, the second boss 103, and the third boss 105 has a transition fillet 111 between adjacent surfaces, these fillets can smoothly guide the force flow and avoid stress concentration at sharp corners, thereby significantly improving the fatigue resistance and overall structural integrity of the high-speed rail automatic door safety lock body forging structure under dynamic loads.

[0035] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4The first boss 101, the second boss 103, and the third boss 105 are aligned at their outline centers. According to the structure provided in this embodiment, because the outline centers of the first boss 101, the second boss 103, and the third boss 105 are aligned, the load can be uniformly transmitted along the central axis. This symmetrical layout avoids the additional bending moment caused by eccentric force, thereby ensuring that the high-speed rail automatic door safety lock body forging structure in this embodiment maintains optimal stress state and structural strength when subjected to working loads.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A forged structure for a safety lock body of a high-speed railway automatic door, characterized in that, include: A first boss (101) protrudes along a first direction and forms a first through groove (102) extending along the first direction. The first boss (101) forms a "U" shape through the first through groove (102). The second boss (103) is integrally forged with the first boss (101) and extends along the first direction. A second through groove (104) is formed on the second boss (103) and extends along the second direction and communicates with the first through groove (102). The second direction is perpendicular to the first direction. The second boss (103) also forms a "U" shape through the second through groove (104). The third protrusion (105) protrudes from the side of the second protrusion (103) away from the first protrusion (101) along the first direction, and the first protrusion (101), the second protrusion (103) and the third protrusion (105) form a stepped structure in the first direction.

2. The forged structure of the safety lock body for high-speed rail automatic door as described in claim 1, characterized in that: A first outer wall surface (106) for machining the target U-shaped groove (201) is formed on the first boss (101), and a second outer wall surface (107) for machining the target strip groove (202) is also formed. The second outer wall surface (107) is distributed on both sides of the first through groove (102) and is perpendicular to the first outer wall surface (106).

3. The forged structure of the safety lock body for high-speed rail automatic door as described in claim 2, characterized in that: An arc-shaped transition surface (108) is formed between the first outer wall surface (106) and the second outer wall surface (107).

4. The forged structure of the safety lock body for high-speed rail automatic door as described in claim 2, characterized in that: A third outer wall surface (109) for machining the target waist-shaped hole (203) is formed on the second boss (103), and a fourth outer wall surface (110) for machining the target through hole (204) is also formed. The fourth outer wall surface (110) is distributed on both sides of the second through groove (104) and is perpendicular to the third outer wall surface (109).

5. The forged structure of the safety lock body for high-speed rail automatic door as described in claim 4, characterized in that: The fourth outer wall surface (110) is parallel to the second outer wall surface (107).

6. The forged structure of the safety lock body for high-speed rail automatic door as described in claim 5, characterized in that: The first boss (101), the second boss (103) and the third boss (105) each have a transition fillet (111) between their adjacent surfaces.

7. The forged structure of the safety lock body for high-speed railway automatic doors as described in any one of claims 1-6, characterized in that: The contour centers of the first boss (101), the second boss (103), and the third boss (105) are aligned.