Watch shell with quick-release watchband structure

By using a slider-linked locking post and magnetic limiting structure, combined with a rotating base design, the problem of inconvenience and looseness in traditional watch straps is solved, achieving fast and stable connection and anti-static function, thus improving the convenience and comfort of the watch.

CN224155235UActive Publication Date: 2026-04-24SHANDONG HUAGANG INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HUAGANG INTELLIGENT TECH CO LTD
Filing Date
2025-05-26
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Replacing traditional watch straps is cumbersome and inconvenient, the connection structure is prone to loosening, affecting user experience and wearing comfort, and it lacks anti-static function.

Method used

It adopts a slider linkage pin design, combined with magnetic attraction, limiting and guiding structure to achieve quick assembly and disassembly, the rotating base design ensures flexible rotation, and the conductive coating provides anti-static function.

Benefits of technology

It enables tool-free quick assembly and disassembly, stable connection, and flexible rotation, improving the watch's practicality and user experience, while also providing anti-static properties.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of watches, and particularly discloses a watch shell with a quick-release watchband structure, which comprises a shell main body and watchband connecting parts symmetrically arranged on two sides of the shell main body, the two sides, facing the end of the shell body, of the watchband connecting part are provided with containing grooves, and clamping columns sliding in the axial direction are arranged in the containing grooves. Extending lugs are arranged on the two sides of the shell body, rotatable rotating seats are embedded in the inner sides of the extending lugs, and clamping grooves matched with the ends of the clamping columns are formed in the rotating seats; a sliding groove is formed in the outer surface of the watchband connecting part, a mounting cavity is formed in the bottom of the sliding groove, and a through hole communicated with the containing groove is formed in the mounting cavity; an ejector rod connected with the clamping column is arranged in the through hole, and the periphery of the ejector rod is sleeved with a reset spring connected with the inner wall of the mounting cavity and the sliding block. According to the utility model, the slide block is linked with the clamping column to realize tool-free disassembly and assembly, the watchband can flexibly rotate through the design of the rotating seat, and the watchband has the advantages of convenient operation, reliable connection, comfortable wearing and the like.
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Description

Technical Field

[0001] This utility model relates to the field of watch technology, and specifically discloses a watch case with a quick-release watch strap structure. Background Technology

[0002] With the widespread adoption of smart wearable devices, the design of watches (especially smartwatches) is increasingly focused on convenience and functionality. As a crucial component of a watch, the ease of use and stability of the watch strap's connection structure directly impacts the user experience. Traditional watch straps are typically secured with screws, spring bars, or buckles, which presents the following problems:

[0003] Replacing a watch strap requires the use of tools (such as screwdrivers or thimbles) to remove screws or spring bars, which is cumbersome and easy to lose small parts, making it unsuitable for scenarios where watch straps need to be changed frequently.

[0004] Some quick-release mechanisms use simple buckle designs, which are prone to loosening after long-term use, and may even cause the watch strap to fall off unexpectedly; in addition, most watch straps are rigidly connected to the case, which cannot rotate flexibly, affecting wearing comfort, especially when the wrist is moving, which may cause a feeling of restriction.

[0005] Therefore, there is an urgent need for a new type of quick-release watch strap structure that can achieve quick disassembly and assembly, stable connection, flexible rotation, and anti-static function, so as to improve the practicality of the watch and the user experience. Utility Model Content

[0006] This utility model proposes a watch case with a quick-release watch strap structure. Tool-free disassembly and assembly are achieved through a slider-linked locking post. The combination of magnetic attraction, limiting and guiding structures ensures a stable connection. The rotating base design allows the watch strap to rotate flexibly. At the same time, the conductive plating layer is used to prevent static electricity. It has the advantages of convenient operation, reliable connection and comfortable wearing.

[0007] This utility model is implemented as follows: a watch case with a quick-release watch strap structure includes a main body and watch strap connecting parts symmetrically arranged on both sides of the main body; the watch strap connecting parts have storage grooves on both sides facing the end of the main body, and the storage grooves have axially sliding locking pins; the main body has extension ears on both sides, and the inner side of the extension ears is fitted with a rotatable rotating seat, and the rotating seat has a locking groove adapted to the end of the locking pin; the outer surface of the watch strap connecting parts has a sliding groove, the bottom of the sliding groove has a mounting cavity, and the mounting cavity has a through hole communicating with the storage groove; the through hole has a top rod connecting the locking pin, the end of the top rod is connected to an inverted "T" shaped slider, the top of the slider extends to the outside of the sliding groove, and a return spring is sleeved around the top rod to connect the inner wall of the mounting cavity and the slider.

[0008] In a preferred embodiment of the quick-release watch strap structure of this utility model, a first magnetic module is embedded on one side of the slot, and a second magnetic module with opposite polarity is embedded at the corresponding end of the post.

[0009] As a preferred example of a quick-release watch strap structure of this utility model, the inner wall of the slot is provided with a hidden groove, and a hemispherical limiting block is connected in the hidden groove through a reset spring. The surface of the locking post is provided with a limiting hole that matches the limiting block.

[0010] As a preferred example of a quick-release watch strap structure of this utility model, the side of the locking post away from the limiting hole is provided with a guide ridge, and both the hidden groove and the locking groove are provided with guide grooves that are adapted to the guide ridge.

[0011] As a preferred example of a quick-release watch strap structure of this utility model, the outer periphery of the rotating seat is provided with an annular limiting protrusion, and the inner wall of the extension lug is provided with an arc-shaped guide groove that cooperates with the limiting protrusion.

[0012] In a preferred embodiment of the quick-release watch strap structure of this utility model, the watch strap connection part is made of glass fiber reinforced nylon, and the contact surface between the glass fiber reinforced nylon and the main body of the watch case is provided with a conductive coating. The coating forms an electrostatic discharge circuit through the grounding terminal of the main body of the watch case.

[0013] As a preferred embodiment of the quick-release watch strap structure of this utility model, the main body of the watch case and the extension lug are integrally formed by metal casting.

[0014] The beneficial effects of this utility model are:

[0015] 1. The watch strap can be installed and removed without tools by sliding the slider to retract or extend the locking pin. The operation is simple and suitable for scenarios where watch straps are frequently changed. The mechanical locking structure of the locking pin and the slot is combined with the magnetic module and the second magnetic module to enhance the attraction force and prevent loosening.

[0016] 2. The rotating base can rotate relative to the extended lugs, and with the guide structure of the annular limiting protrusion and the arc-shaped guide groove, the angle of the strap connection part can be flexibly adjusted to improve wearing comfort; and the auxiliary locking structure of the hemispherical limiting block and limiting hole is added to further improve the connection stability and prevent accidental dislodgement. The guide ridge is set on the card post, which cooperates with the guide groove in the card slot to ensure accurate insertion and smoother installation. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0020] Figure 3 This is a schematic diagram of the structure of the card column of this utility model.

[0021] Figure 4 This is a schematic diagram of the shell body and conductive plating structure of this utility model.

[0022] The markings in the diagram are: 1. Main body of the casing; 2. Strap connection part; 3. Storage slot; 4. Locking post; 5. Extension lug; 6. Rotating seat; 7. Locking slot; 8. Slide groove; 9. Mounting cavity; 10. Through hole; 11. Top rod; 12. Slider; 13. Return spring; 14. First magnetic attraction module; 15. Second magnetic attraction module; 16. Hidden groove; 17. Limiting block; 18. Limiting hole; 19. Guide ridge; 20. Guide groove; 21. Limiting protrusion; 22. Arc-shaped guide groove; 23. Conductive plating layer. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Please see Figure 1-4 A watch case with a quick-release watch strap structure includes a main body 1 and watch strap connecting parts 2 symmetrically arranged on both sides of the main body 1. The watch strap connecting parts 2 have storage grooves 3 on both sides facing the end of the main body 1, and the storage grooves 3 have axially sliding locking pins 4. The main body 1 has extension ears 5 on both sides, and the inner side of the extension ears 5 is fitted with a rotatable rotating seat 6. The rotating seat 6 has a locking groove 7 that matches the end of the locking pin 4. The outer surface of the watch strap connecting parts 2 has a sliding groove 8, and the bottom of the sliding groove 8 has a mounting cavity 9. The mounting cavity 9 has a through hole 10 communicating with the storage groove 3. The through hole 10 has a top rod 11 that connects to the locking pin 4. The end of the top rod 11 is connected to an inverted "T"-shaped slider 12. The top of the slider 12 extends to the outside of the sliding groove 8. The top rod 11 is surrounded by a return spring 13 that connects the inner wall of the mounting cavity 9 and the slider 12.

[0025] In this embodiment: Pulling the two sliders 12 in the groove 8 on the strap connection part 2 moves them relative to each other. At this time, the return spring 13 is compressed, and the top rod 11 pulls the locking pin 4 into the storage groove 3. After placing the strap connection part 2 between the two extension ears 5 on one side of the housing body 1, the sliders 12 are released. Under the elastic force of the return spring 13, one end of the locking pin 4 in the storage groove 3 is locked into the locking groove 7 of the rotating seat 6, realizing the quick connection between the strap connection part 2 and the housing body 1. Since the rotating seat 6 can rotate, the strap connection part 2 and the housing body 1 can rotate.

[0026] As a technical optimization of this utility model, a first magnetic module 14 is embedded in one side of the card slot 7, and a second magnetic module 15 with opposite polarity is embedded in the corresponding end of the card post 4.

[0027] In this embodiment, by setting magnetic suction modules with opposite polarities at the corresponding ends of the card slot 7 and the card post 4, the connection stability between the card post 4 and the rotating seat 6 is enhanced, preventing loosening.

[0028] As a technical optimization of this utility model, the inner wall of the card slot 7 is provided with a hidden groove 16, and a hemispherical limiting block 17 is connected in the hidden groove 16 through a reset spring 13. The surface of the card post 4 is provided with a limiting hole 18 that matches the limiting block 17.

[0029] In this embodiment, the stability and reliability of the connection are further improved by the cooperation between the limiting block 17 and the limiting hole 18.

[0030] As a technical optimization of this utility model, the side of the locking post 4 away from the limiting hole 18 is provided with a guide ridge 19, and both the hidden groove 16 and the locking groove 7 are provided with guide grooves 20 that are adapted to the guide ridge 19.

[0031] In this embodiment, the guide groove 20 guides the guide ridge 19 on the locking post 4, making it easier for the locking post 4 to be inserted into the locking groove 7, and making it easier for the limiting block 17 to be accurately locked into the limiting hole 18, which facilitates installation and disassembly.

[0032] As a technical optimization of this utility model, the outer periphery of the rotating seat 6 is provided with an annular limiting protrusion 21, and the inner wall of the extension ear 5 is provided with an arc-shaped guide groove 22 that cooperates with the limiting protrusion 21.

[0033] In this embodiment: by setting an annular limiting protrusion 21 on the outer periphery of the rotating seat 6, and providing an arc-shaped guide groove 22 on the inner wall of the extension ear 5 that cooperates with the limiting protrusion 21, the rotation of the rotating seat 6 is more stable and smooth, so that the watch strap connection part 2 and the housing body 1 can achieve rotational performance.

[0034] As a technical optimization of this utility model, the strap connection part 2 is made of glass fiber reinforced nylon, and the contact surface between the glass fiber reinforced nylon and the housing body 1 is provided with a conductive plating layer 23. The plating layer forms an electrostatic discharge circuit through the grounding terminal of the housing body 1.

[0035] In this embodiment, the strap connection part 2 is made of glass fiber reinforced nylon and is provided with a conductive plating layer 23. An electrostatic discharge circuit is formed through the grounding terminal of the housing body 1, which increases the anti-static function of the watch and protects the internal electronic components.

[0036] As a technical optimization of this utility model, the shell body 1 and the extension ear 5 are integrally formed by metal casting.

[0037] In this embodiment, the main body 1 and the extension ear 5 are integrally cast metal, which enhances the strength and stability of the overall structure.

[0038] Working principle and disassembly process of this utility model:

[0039] Locate the groove 8 on the outer surface of the strap connection part 2, and pull the two T-shaped sliders 12 in the groove 8 on one strap connection part 2 towards each other; the movement of the sliders 12 drives the push rod 11 connected to the locking post 4, causing the push rod 11 to pull the locking post 4 against the elastic force of the return spring 13 and move it towards the storage groove 3 until the locking post 4 is completely moved into the storage groove 3; at this time, the engagement between the strap connection part 2 and the housing body 1 is released, and the strap connection part 2 can be removed from between the extension ears 5 on both sides of the housing body 1 to complete the disassembly;

[0040] Installation process: Place the strap connector 2 between the two extension ears 5 on one side of the main body 1, aligning the locking post 4 with the slot 7 on the rotating base 6. Simultaneously, align the guide ridge 19 on the locking post 4 with the guide groove 20 within the slot 7. Release the previously pulled slider 12. Under the elastic force of the return spring 13, the return spring 13 pushes the slider 12 back to its original position. Simultaneously, the push rod 11 pushes the locking post 4 towards the slot 7. One end of the locking post 4 gradually inserts into the slot 7 of the rotating base 6. During this process, the guide ridge 19 on the locking post 4 acts as a guide, and the first magnetic module 14 and the second magnetic module with opposite polarity embedded at the corresponding end of the locking post 4... The interaction of blocks 15 makes the insertion process smoother and more accurate. When the locking post 4 is fully inserted into the slot 7, the hemispherical limiting block 17 connected by the return spring 13 in the hidden groove 16 on the inner wall of the slot 7 pops out under the elastic force of the return spring 13 and is embedded in the limiting hole 18 on the surface of the locking post 4, further enhancing the stability of the connection. After installation, since the outer circumference of the rotating seat 6 is provided with an annular limiting protrusion 21 and the inner wall of the extension ear 5 is provided with an arc-shaped guide groove 22 that matches it, the rotating seat 6 can rotate relative to the extension ear 5 within a certain range, so that the strap connection part 2 can rotate flexibly relative to the main body 1 of the housing, meeting the usage requirements.

[0041] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", 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 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. Therefore, they should not be construed as limitations on this utility model.

[0042] However, the above are merely specific embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A watch case with a quick-release strap structure, comprising a case body (1) and strap connecting portions (2) symmetrically disposed on both sides of the case body (1); characterized in that: The strap connecting part (2) has storage grooves (3) on both sides facing the end of the housing body (1), and the storage grooves (3) have axially sliding locking pins (4); the housing body (1) has extension ears (5) on both sides, and the inner side of the extension ears (5) is fitted with a rotatable rotating seat (6), and the rotating seat (6) has a locking groove (7) adapted to the end of the locking pin (4); the outer surface of the strap connecting part (2) has a sliding groove (8), the bottom of the sliding groove (8) has an installation cavity (9), and the installation cavity (9) has a through hole (10) communicating with the storage groove (3); the through hole (10) has a top rod (11) connecting the locking pin (4), and the end of the top rod (11) is connected to an inverted "T" shaped slider (12), the top of the slider (12) extends to the outside of the sliding groove (8), and the top rod (11) is fitted with a return spring (13) connecting the inner wall of the installation cavity (9) and the slider (12).

2. The watch case of claim 1, wherein: The first magnetic module (14) is embedded in one side of the card slot (7), and the second magnetic module (15) with opposite polarity is embedded in the corresponding end of the card post (4).

3. The watch case of claim 1, wherein: The inner wall of the card slot (7) is provided with a hidden groove (16), and a hemispherical limiting block (17) is connected in the hidden groove (16) through a reset spring (13). The surface of the card post (4) is provided with a limiting hole (18) that is adapted to the limiting block (17).

4. The watch case of claim 3, wherein: The locking post (4) is provided with a guide ridge (19) on the side away from the limiting hole (18), and the hidden groove (16) and the locking groove (7) are both provided with guide grooves (20) that are compatible with the guide ridge (19).

5. The watch case of claim 1, wherein: The outer periphery of the rotating seat (6) is provided with an annular limiting protrusion (21), and the inner wall of the extension ear (5) is provided with an arc-shaped guide groove (22) that cooperates with the limiting protrusion (21).

6. The watch case of claim 1, wherein: The strap connection part (2) is made of glass fiber reinforced nylon. The contact surface between the glass fiber reinforced nylon and the housing body (1) is provided with a conductive coating (23). The coating forms an electrostatic discharge circuit through the grounding terminal of the housing body (1).

7. The watch case of claim 1, wherein: The main body (1) and the extension ear (5) are integrally formed by metal casting.