Handheld wireless sign-in equipment
By incorporating a rotatable U-shaped frame within the recessed area on the back of the handheld wireless check-in device, the problems of the device easily slipping and being unstable are solved, enabling convenient portability and stable check-in, thereby improving user experience and check-in efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO UNIVERSITY OF TECHNOLOGY
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-24
AI Technical Summary
Existing handheld wireless check-in devices have shortcomings in terms of portability and support, as they are prone to slipping and cannot be placed stably on non-fixed surfaces, affecting check-in efficiency.
A flip-up U-shaped frame is installed in the groove on the back of the device body. The U-shaped frame can be flipped in multiple ways through the rotating connection structure, serving as a handle or support structure, providing convenient carrying and stable placement.
It improves the portability and safety of the equipment, reduces hand fatigue, increases check-in efficiency on non-fixed surfaces, and simplifies maintenance and cleaning operations.
Smart Images

Figure CN224163970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of check-in devices, and more particularly to a handheld wireless check-in device. Background Technology
[0002] In the daily management of education, attendance management is a crucial aspect of ensuring student safety when schools organize student outings. Traditional attendance methods rely heavily on paper attendance sheets or fixed electronic devices. However, with the popularization of information management, handheld wireless attendance devices are gradually becoming a common tool for managing school outings due to their convenient data transmission and real-time recording capabilities.
[0003] Currently available handheld wireless attendance devices generally suffer from functional design flaws when used in school off-campus settings. Traditional devices often focus solely on the core attendance function, neglecting optimization in terms of portability and ease of use. Specifically, existing devices lack ergonomic carrying structures, requiring users to hold the device, manage students, or carry other items simultaneously with one hand. This increases the risk of the device slipping during operation, and prolonged holding can lead to hand fatigue. Furthermore, the lack of adjustable support structures makes it difficult to stably place the device on non-fixed surfaces such as outdoor temporary tables or steps, impacting attendance efficiency.
[0004] In summary, a handheld wireless check-in device has been proposed. Utility Model Content
[0005] This invention addresses the shortcomings of existing technologies by incorporating a U-shaped frame within a recessed groove on the back of the device. This frame flips upwards to form a handle, eliminating the need for single-handed grip, preventing the device from slipping, reducing hand fatigue, freeing up the other hand, and improving portability and safety. The outward-flipping U-shaped frame allows the device to rest on a flat surface, providing stable support for check-in on non-fixed surfaces, thus overcoming the instability of traditional devices and improving check-in efficiency.
[0006] To address the aforementioned technical problems, this utility model provides a solution that resolves the issues of inconvenience in using existing handheld wireless check-in devices during school outings due to the lack of carrying and support structures.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A handheld wireless check-in device includes a device body. The back of the device body has an inner groove, and a U-shaped frame is rotatably disposed in the inner groove through a rotating connection structure. The inner groove is divided into a first segment and a second segment by the rotating connection structure. The length of the first segment is shorter than the length of the second segment. The first segment is an open port. When the U-shaped frame is flipped upward, it protrudes from the top of the device body to form a handle for easy hand-holding. The second segment is a closed end. When the U-shaped frame is flipped outward, it works together with the back of the device body to support the device body on a plane.
[0009] Preferably, the rotating connection structure includes a rotating groove on the inner groove, a rotating shaft in the rotating groove, a compression spring sleeved on the rotating shaft, and a limiting end on the outer end of the rotating shaft. The two sides of the U-shaped frame are rotatably connected to the rotating shaft through ball joints.
[0010] Preferably, the device body has transverse through holes on both sides, the transverse through holes pass through the rotating groove, the two ends of the rotating shaft pass through the corresponding spherical joints and extend into the transverse through holes, and the ends of the rotating shaft are threaded and threadedly connected to the threaded section provided at the inner end of the transverse through holes.
[0011] Preferably, one end of the compression spring abuts against the annular groove at the outer port of the transverse hole, and the other end abuts against the inner end face of the limiting end.
[0012] Preferably, the ball joint is made of an elastic material.
[0013] Preferably, the U-shaped frame is fitted with an anti-slip sleeve, which generates friction when it comes into contact with the inner wall of the groove.
[0014] Preferably, the U-shaped frame has positioning holes on both sides, and positioning clips are connected to the upper sides of the inner wall of the inner groove. When the U-shaped frame is flipped upward to the carrying position, the positioning clips are inserted into the corresponding positioning holes.
[0015] Preferably, the head end of the positioning clip is elastic and forms an interference fit with the positioning hole for fixation.
[0016] Preferably, the outer wall of the limiting end is provided with anti-slip texture.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] The handheld wireless check-in device provided in this application features a U-shaped frame with an inner groove on the back of the device body. This frame flips upwards to form a handle, eliminating the need for users to hold the device with one hand, preventing it from slipping, reducing hand fatigue, freeing up the other hand, and improving portability and safety. The U-shaped frame flips outwards to support the device on a flat surface, providing stable support when checking in on non-fixed surfaces, changing the unstable placement of traditional devices, and improving check-in efficiency.
[0019] Manual disassembly is achieved through the anti-slip texture on the limiting end, allowing for quick separation of components such as the U-shaped frame without the need for special tools. This facilitates the inspection, repair, or replacement of the core rotating connection structure of the equipment, reducing maintenance costs and operational difficulty. It also allows users to perform cleaning. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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.
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the disassembled rear view of the present invention;
[0023] Figure 3 This is a structural diagram of the present invention in its stored state;
[0024] Figure 4 This is a schematic diagram of the structure of this utility model in its supported state;
[0025] Figure 5 This is a schematic diagram of a partial rear view of the present invention;
[0026] Figure 6 This is a schematic diagram of the disassembled structure of the U-shaped frame and anti-slip sleeve of this utility model;
[0027] Figure 7 This utility model Figure 2 A partial structural diagram;
[0028] Figure 8 This is a partial structural schematic diagram of the top cross-section of this utility model.
[0029] Drawing number explanation: 1. Equipment body; 2. U-shaped frame; 21. Positioning hole; 22. Anti-slip sleeve; 3. Ball joint; 4. Inner groove; 41. Positioning clip; 5. Rotating groove; 51. Horizontal through hole; 6. Rotating shaft; 61. Limiting end; 7. Compression spring. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings.
[0031] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0032] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.
[0033] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example
[0034] Please see Figure 1-8 A handheld wireless check-in device includes a device body 1. The back of the device body 1 has an inner groove 4. A U-shaped frame 2 is rotatably arranged in the inner groove 4 through a rotating connection structure. The inner groove 4 is divided into a first segment and a second segment by the rotating connection structure. The length of the first segment is shorter than the length of the second segment. The first segment is an open port. When the U-shaped frame 2 is flipped upward, it protrudes from the top of the device body 1 to form a handle that is easy to hold and carry. The second segment is a closed end. When the U-shaped frame 2 is flipped outward, it works together with the back of the device body 1 to support the device body 1 on a plane.
[0035] The handheld wireless check-in device of this application is mainly composed of the device body 1, the inner groove 4, the U-shaped frame 2 and the rotating connection structure, etc. The following is a detailed description of its structure and working principle.
[0036] The main body 1 serves as the core component, integrating key components such as a data processing unit, wireless communication module, display screen, and power module to achieve the functions of check-in data collection, processing, and transmission. An inner groove 4 is formed on its back, which is divided into two sections of unequal length by a rotating connection structure. The first section is shorter than the second section; the first section is an open port, and the second section is a closed end. This design provides the space for the multi-functional flipping of the U-shaped frame 2.
[0037] The U-shaped frame 2 is rotatably mounted within the inner groove 4 via a rotating connection structure. The rotating connection structure includes a rotating groove 5 on the inner groove 4, a rotating shaft 6 within the rotating groove 5, a compression spring 7 sleeved on the rotating shaft 6, and a limiting end 61 located at the outer end of the rotating shaft 6. The outer wall of the limiting end 61 has anti-slip textures, which increase friction with fingers for easier manual operation. The two sides of the U-shaped frame 2 are rotatably connected to the rotating shaft 6 via ball joints 3. The ball joints 3 are made of elastic material and provide cushioning and stability during rotation.
[0038] The main body 1 has transverse through holes 51 on both sides, which pass through the rotating groove 5. The two ends of the rotating shaft 6 pass through the corresponding ball joints 3 and extend into the transverse through holes 51. The ends of the rotating shaft 6 are threaded and threaded to the threaded section inside the transverse through hole 51. This connection method facilitates the installation and fixation of the rotating shaft 6. One end of the compression spring 7 abuts against the annular groove at the outer port of the transverse through hole 51, and the other end abuts against the inner end face of the limiting end 61. This ensures that the rotating shaft 6 is subjected to the elastic force of the compression spring 7 during rotation, guaranteeing that the U-shaped frame 2 can be stably positioned after flipping.
[0039] The U-shaped frame 2 is fitted with an anti-slip sleeve 22, which is made of a material with a certain friction. When the U-shaped frame 2 is flipped over and comes into contact with the inner wall of the inner groove 4, the anti-slip sleeve 22 generates friction with the inner wall, further enhancing the stability of the U-shaped frame 2. At the same time, positioning holes 21 are provided on both sides of the U-shaped frame 2, and positioning clips 41 are connected to the upper part of both sides of the inner wall of the inner groove 4. The head end of the positioning clip 41 is elastic. When the U-shaped frame 2 is flipped upward to the carrying position, the positioning clip 41 is inserted into the corresponding positioning hole 21 to form an interference fit and fix it, preventing the U-shaped frame 2 from accidentally flipping over during carrying.
[0040] Working principle
[0041] When the user needs to carry the handheld wireless check-in device, they flip the U-shaped frame 2 upwards. Since the U-shaped frame 2 is connected to the rotating shaft 6 via a ball joint 3, the ball joint 3 can rotate flexibly on the rotating shaft 6 during the flipping process. As the U-shaped frame 2 flips upwards, it gradually protrudes from the top of the device body 1, ultimately forming a handle for easy hand-carrying. At this time, the positioning clip 41, due to its elastic end, automatically inserts into the positioning hole 21 when the U-shaped frame 2 is flipped to the carrying position, fixing the U-shaped frame 2 in this position through an interference fit. Simultaneously, the friction generated by the anti-slip sleeve 22 contacting the inner wall of the inner groove 4 also helps to fix the U-shaped frame 2, preventing it from flipping downwards during carrying. The user can easily hold the device with the handle, freeing up their other hand for managing students or carrying other items, reducing fatigue from holding the device with one hand and the risk of the device slipping.
[0042] When check-in is required on temporary outdoor surfaces such as desktops or steps, the user flips the U-shaped frame 2 outwards. Since the second section of the inner groove 4 is closed, during the flipping process, the U-shaped frame 2 rotates outwards around the pivot 6. The compression spring 7 is compressed or stretched as the pivot 6 rotates, providing resistance and allowing the U-shaped frame 2 to flip smoothly outwards. When the U-shaped frame 2 is flipped to a certain angle, it works together with the back of the device body 1 to support the device body 1 on the flat surface. At this time, the U-shaped frame 2 and the device body 1 form a stable support structure, allowing the device to be placed stably, facilitating check-in and improving efficiency. In the supported state, when the anti-slip sleeve 22 contacts the flat surface, its anti-slip properties increase the friction between the device and the surface, further ensuring the stability of the device. When the support is not needed, the user can flip the U-shaped frame 2 inwards to store it within the inner groove 4, making the device easy to carry and store.
[0043] When the equipment requires maintenance, parts replacement, or deep cleaning, the U-shaped frame 2 can be disassembled and manually removed using the anti-slip texture on the outer wall of the limiting end 61. First, hold the limiting end 61 with your hand; the anti-slip texture effectively prevents slippage and facilitates force application. Then, along the axial direction of the rotating shaft 6, apply outward pulling force while slowly rotating the limiting end 61. Since the end of the rotating shaft 6 has threads, the limiting end 61 will gradually separate from the transverse through hole 51 during rotation. During this process, pay close attention to the state of the compression spring 7, as it is in a compressed state. As the limiting end 61 loosens, it will exert an outward pushing force on the limiting end 61. Therefore, operate slowly to avoid the compression spring 7 popping out and causing damage to parts or injury. After the limiting end 61 is completely removed, the rotating shaft 6 can be pulled out from the transverse through hole 51 and the ball joint 3. Since the ball joint 3 is fitted onto the rotating shaft 6, the U-shaped frame 2 is now separated from the equipment body 1. After disassembly, the parts can be repaired, replaced, or cleaned.
[0044] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.
Claims
1. A handheld wireless check-in device, characterized in that, The device includes a main body (1), and an inner groove (4) is provided on the back of the main body (1). A U-shaped frame (2) is provided in the inner groove (4) through a rotating connection structure. The inner groove (4) is divided into a first segment and a second segment by the rotating connection structure. The length of the first segment is less than the length of the second segment. The first segment is an open port. When the U-shaped frame (2) is flipped upward, it protrudes from the top of the main body (1) to form a handle that is easy to hold and carry. The second segment is a closed end. When the U-shaped frame (2) is flipped outward, it works together with the back of the main body (1) to support the main body (1) on a plane.
2. The handheld wireless check-in device according to claim 1, characterized in that: The rotating connection structure includes a rotating groove (5) on the inner groove (4), a rotating shaft (6) in the rotating groove (5), a compression spring (7) sleeved on the rotating shaft (6), and a limiting end (61) on the outer end of the rotating shaft (6). The two sides of the U-shaped frame (2) are rotatably connected to the rotating shaft (6) through ball joints (3).
3. The handheld wireless check-in device according to claim 2, characterized in that: The device body (1) has transverse through holes (51) on both sides. The transverse through holes (51) pass through the rotating groove (5). The two ends of the rotating shaft (6) pass through the corresponding ball joint (3) and extend into the transverse through holes (51). The end of the rotating shaft (6) is threaded and threadedly connected to the threaded section provided at the inner end of the transverse through hole (51).
4. A handheld wireless check-in device according to claim 3, characterized in that: One end of the compression spring (7) abuts against the annular groove at the outer port of the transverse hole (51), and the other end abuts against the inner end face of the limiting end (61).
5. A handheld wireless check-in device according to claim 2, characterized in that: The ball joint (3) is made of elastic material.
6. A handheld wireless check-in device according to claim 1, characterized in that: The U-shaped frame (2) is fitted with an anti-slip sleeve (22), which generates friction when it comes into contact with the inner wall of the groove (4).
7. A handheld wireless check-in device according to claim 1, characterized in that: The U-shaped frame (2) has positioning holes (21) on both sides. The upper sides of the inner wall of the inner groove (4) are connected to positioning clips (41). When the U-shaped frame (2) is flipped upward to the carrying position, the positioning clips (41) are inserted into the corresponding positioning holes (21).
8. A handheld wireless check-in device according to claim 7, characterized in that: The head end of the positioning clip (41) is elastic and forms an interference fit with the positioning hole (21) for fixation.
9. A handheld wireless check-in device according to claim 2, characterized in that: The outer wall of the limiting end (61) is provided with anti-slip texture.