Assembly type subway station bolt fastening device
By designing a bolt fastening device for prefabricated subway stations, using transmission rods, connecting barrels and snap structures, the problems of large manpower investment and low efficiency of traditional construction methods are solved, and fast and efficient bolt fastening is achieved, meeting the construction needs of prefabricated stations.
Patent Information
- Application Number
- CN202421353321.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-14
AI Technical Summary
Traditional construction methods use wrench for torque application, which has a large manpower investment and low construction efficiency during construction, making it difficult to meet the assembly construction requirements of prefabricated stations.
A prefabricated subway station bolt fastening device is designed, including a transmission rod, a connecting cylinder and a snap buckle. The transmission rod is driven by a motor, and the nut is tightened by a snap buckle and a fixing groove structure.
The construction time is greatly reduced, and the components can be tightened within 1 and a half hours, improving construction efficiency and quality, and is suitable for construction in narrow spaces.
Smart Images

Figure CN222537577U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of assembled subway stations, in particular to a bolt fastening device for assembled subway stations. Background Art
[0002] Bolt fastening devices are widely used in engineering and manufacturing fields, mainly for connecting and fixing various structures and components. They ensure safe connection and stability between components and are suitable for various applications ranging from small mechanical parts to large building structures.
[0003] The construction of prefabricated subway stations often involves the application of bolt preload. The traditional construction method uses a wrench to apply torque, which requires a large amount of manpower and has low construction efficiency. After construction, a torque wrench is required to check the torque, and the torque is often unqualified, which makes it difficult to meet the assembly construction requirements of prefabricated stations. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] The technical problem to be solved by the utility model is that the traditional construction method uses a wrench to apply torque, which requires a lot of manpower during construction and has low construction efficiency.
[0006] (II) Technical solution
[0007] In order to solve the above technical problems, the technical solution provided by the utility model is:
[0008] An assembled subway station bolt fastening device comprises a transmission rod, a connecting tube and a buckle;
[0009] A connecting tube is provided at one end of the transmission rod, and the other end of the connecting tube is an open cylindrical structure with an internal thread and is threadedly fixedly connected to the output shaft of the motor. A buckle is provided at the other end of the transmission rod, and a fixing groove cooperating with a nut is provided at the outer end of the buckle.
[0010] As an improvement, both the connecting tube and the buckle are fixedly connected to the transmission rod by welding.
[0011] As an improvement, the outer end diameters of both the connecting tube and the buckle are larger than the diameter of the transmission rod.
[0012] As an improvement, the fixing groove on the inner side of the buckle is a regular hexagonal structure, which fits tightly and snaps together with the outer end of the nut.
[0013] As an improvement, the transmission rod is a tubular structure with a hollow interior.
[0014] (III) Beneficial effects
[0015] The advantages of the utility model compared with the prior art are:
[0016] The construction is convenient and the construction time is greatly reduced. Under unobstructed conditions, two people need a whole morning to complete the tightening of the components. After using this machine, one person can complete it within half an hour. The equipment can also be used for tightening bolts in narrow fertilizer troughs, which speeds up construction efficiency and improves construction quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the appearance of the utility model.
[0018] Figure 2 It is a schematic diagram of some components of the utility model Figure 1 .
[0019] Figure 3 It is a schematic diagram of some components of the utility model Figure 2 .
[0020] Figure 4 It is a schematic diagram of a nut model of the utility model.
[0021] As shown in the figure: 1. Transmission rod; 2. Connecting tube; 3. Buckle; 4. Fixing groove; 5. Nut. DETAILED DESCRIPTION
[0022] In the description of the present utility model, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof are intended to cover non-exclusive inclusions.
[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0024] Please see attached Figure 1 To Attachment Figure 4As shown, a bolt fastening device for assembled subway stations, the transmission rod 1 is a tubular structure with a hollow interior, one end of which is provided with a connecting tube 2, the other end of which is an open tubular structure with an internal thread, and is threadedly fixedly connected to the output shaft of the motor, the other end of the transmission rod 1 is provided with a buckle 3, the outer end of the buckle 3 is provided with a fixing groove 4 that cooperates with the nut 5, the fixing groove 4 on the inner side of the buckle 3 is a regular hexagonal structure, and is tightly clamped with the outer end of the nut 5. Both the connecting tube 2 and the buckle 3 are fixedly connected to the transmission rod 1 by welding. The outer end diameters of the connecting tube 2 and the buckle 3 are both larger than the diameter of the transmission rod 1.
[0025] Through the above structure, the nut 5 is tightened by the motor to meet the design torque requirement. The device is composed of a motor and a transmission rod 1. During construction, the worker buckles the device on the bolt and then starts the machine to tighten the bolt.
[0026] During the specific implementation of the utility model: when it is necessary to tighten the bolts in the subway station, the connecting tube 2 at one end of the transmission rod 1 is threadedly connected and fixed with the output shaft of the motor, and then the fixing groove 4 in the buckle 3 is aligned with the nut to be tightened, and the motor is started to drive the transmission rod 1 to rotate, so that the nut 5 is tightened through the buckle 3, thereby accelerating the construction efficiency.
[0027] The above describes the utility model and its implementation methods, which are not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention of the utility model, they can creatively design a structure and embodiment similar to the technical solution, which should belong to the protection scope of the utility model.
Claims
1. An assembled subway station bolt fastening device, characterized in that: It comprises a transmission rod (1), a connecting tube (2) and a buckle (3); A connecting tube (2) is provided at one end of the transmission rod (1); the other end of the connecting tube (2) is an open cylindrical structure with an internal thread and is threadedly fixedly connected to the output shaft of the motor; a buckle (3) is provided at the other end of the transmission rod (1); a fixing groove (4) cooperating with a nut (5) is provided at the outer end of the buckle (3).
2. The assembled subway station bolt fastening device according to claim 1, characterized in that: The connecting tube (2) and the buckle (3) are both fixedly connected to the transmission rod (1) by welding.
3. The assembled subway station bolt fastening device according to claim 1, characterized in that: The outer end diameters of the connecting tube (2) and the buckle (3) are both larger than the diameter of the transmission rod (1).
4. The assembled subway station bolt fastening device according to claim 1, characterized in that: The fixing groove (4) on the inner side of the buckle (3) is a regular hexagonal structure and is tightly fitted and clamped together with the outer end of the nut (5).
5. The assembled subway station bolt fastening device according to claim 1, characterized in that: The transmission rod (1) is a tubular structure with a hollow interior.