Watch accessory replacement structure

Abstract

The utility model relates to the technical field of mechanical watches, and discloses a watch accessory replacement structure, which comprises a watchcase and a group of connecting blocks arranged on the outer surface of the watchcase, and the bottom of the watchcase is provided with a group of ventilation blocks arranged circumferentially. According to the watch accessory replacement structure, through the combination design of the circumferentially arranged ventilation blocks at the bottom of the watch shell and the isosceles trapezoid ventilation grooves, an air convection channel is formed, the air circulation efficiency at the bottom of the watch body is effectively enhanced, and the distributed rubber convex ball structures on the contact disc are matched to maintain an air flow channel; the problem of stuffiness and sweat accumulation caused by tight contact between a bottom cover of a traditional mechanical watch and the skin is solved, the torsion spring and the connecting frame are arranged so that the connecting frame can adjust the wrapping angle according to the shape of the carpal bone, the bottom end of the connecting frame is pressed to turn over during wearing, and self-adaptive attachment of the watchband to the curve of the carpal bone is achieved through the reset force of the torsion spring; the problem of gap deviation of a traditional fixed connection structure is solved, and wearing discomfort caused by excessive constraint is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mechanical watch technology, specifically a watch parts replacement structure. Background Technology

[0002] Mechanical watches are everyday accessories that can serve a decorative purpose.

[0003] An existing patent (publication number: CN215124965U) discloses an easy-to-install mechanical watch strap, relating to the field of mechanical watch technology. This utility model includes a strap body, a positioning post, and a connecting block. The strap body is connected to the positioning post via a circular groove and a spring. The positioning post is rotatably connected to the connecting block via a slot. This utility model features a guide groove to facilitate quick alignment of the positioning post with the connecting block. The engagement of the slot and the positioning post connects the strap body to the watch case. The spring prevents the positioning post from detaching from the slot, reducing installation time, improving efficiency and stability, and facilitating operation. A fixing strip facilitates disassembly, and its position prevents the strap body from easily detaching from the watch case. A limiting strip prevents relative rotation between the positioning post and the circular groove, ensuring smooth rotation between the positioning post and the slot, without affecting the rotation between the strap body and the watch case, thus improving user comfort.

[0004] The aforementioned watch reduces the time required to install the watch strap, improves installation efficiency and stability, and facilitates operation. However, during use, the bottom of the strap is in close contact with the skin of the wrist, resulting in low breathability and causing the user's wrist to sweat easily, affecting the user experience. Secondly, due to differences in human body, the width of each person's wrist bone is different. The connection between the watch case and the strap is fixed and cannot be adjusted according to different people's wrist bones, resulting in low wrapping comfort. When the strap is wrapped too tightly, the user will feel uncomfortable. When there is a gap in movement, the watch case is prone to rotating along the axis of the user's wrist bone. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a watch accessory replacement structure that is easy for people with different wrist bone widths to use, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a watch accessory replacement structure, including a watch case and a set of connecting blocks disposed on the outer surface of the watch case, a set of circumferentially arranged ventilation blocks disposed at the bottom of the watch case, a ventilation groove disposed between every two adjacent ventilation blocks, a contact plate disposed between a set of ventilation blocks, and a set of distributed rubber protrusions disposed on the skin-contacting surface of the contact plate.

[0007] A connecting shaft is rotatably connected between each pair of adjacent connecting blocks, and a torque disk is fixedly connected to the middle end of each of the two connecting shafts.

[0008] Each connecting shaft has a connecting component on its outer surface. Each connecting component includes a connecting frame. An installation cylinder is fixedly connected to the middle of each of the two connecting frames. The bottom of each of the two connecting frames is arc-shaped. Each installation cylinder is rotatably connected to the connecting shaft that is close to it. A torsion spring is provided between each installation cylinder and the torsion disc that is close to it.

[0009] Both connecting components have watch straps at their bottom ends, and one end of each watch strap is rotatably connected to the adjacent connecting component via a quick-connect component.

[0010] Furthermore, each of the quick-connect components includes a fixing post, two fixing posts are fixedly connected to one end of the watch strap adjacent to each other, a connecting tube is slidably sleeved at both ends of each fixing post, a compression spring is installed between each connecting tube and one end of the fixing post adjacent to each other, and each connecting tube is slidably inserted into the connecting frame adjacent to each other.

[0011] With the above solution, by setting up the connecting cylinder and the compression spring, when connecting the watch strap, you only need to press the connecting cylinder to bring it closer to the fixing post, and then align the connecting cylinder with the bottom end of the connecting frame. The compression spring will then reset the connecting cylinder, allowing it to be inserted into the connecting frame, thus completing the quick installation or removal.

[0012] Furthermore, the top of both connecting frames is disc-shaped, and one side of each connecting block is provided with an arc-shaped protrusion. The top of each connecting frame is slidably connected to the arc-shaped protrusion adjacent to it.

[0013] The above solution, through the setting of the arc-shaped protrusion, can limit the swing range of the connecting frame.

[0014] Furthermore, each of the ventilation blocks has a mating groove on one side, and a set of mating cards are provided on the circumferential surface of the contact plate, with each mating card having an interference fit with the mating groove adjacent to it.

[0015] The above method allows for the installation of the contact plate by placing it between a set of ventilation blocks and then rotating the contact plate to screw the mating card into the mating groove.

[0016] Furthermore, each of the ventilation slots is designed as an isosceles trapezoid.

[0017] The above scheme and setup facilitate air circulation.

[0018] Furthermore, each of the connecting blocks is integrally formed with the case.

[0019] The above solution, which integrates the casing and connecting block, ensures overall mechanical strength and improves connection stability.

[0020] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0021] This watch accessory replacement structure utilizes a combination of circumferentially arranged ventilation blocks and isosceles trapezoidal ventilation slots at the bottom of the watch case to create an air convection channel, effectively enhancing airflow efficiency at the bottom of the watch. This, along with the distributed rubber convex ball structure on the contact plate, maintains the airflow channel, solving the problem of stuffiness and sweat buildup caused by the close contact between the traditional mechanical watch case back and the skin. The torsion spring and connecting bracket allow the bracket to adjust its wrapping angle according to the shape of the wrist bone. When worn, the bottom of the connecting bracket is pressed and flipped, and the torsion spring's restoring force achieves an adaptive fit of the watch strap to the wrist bone curve, eliminating the gap and misalignment problem of traditional fixed connection structures and avoiding discomfort caused by excessive constriction. The quick-connect component allows for easy removal and installation of the watch strap with a simple press, significantly improving accessory replacement efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ;

[0023] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 2 ;

[0024] Figure 3 This is a structural diagram of the connecting block and connecting shaft of this application;

[0025] Figure 4 This is a structural diagram of the contact disc and rubber convex ball of this application;

[0026] Figure 5 This is a structural diagram of the entire connection component of this application;

[0027] Figure 6 This is a structural diagram of the fast connection component in this application.

[0028] In the picture:

[0029] 1. Watch case; 101. Connecting block;

[0030] 2. Ventilation block; 201. Ventilation slot; 202. Fitting slot;

[0031] 3. Contact plate; 301. Rubber convex ball; 302. Mating card;

[0032] 4. Connecting shaft; 401. Torque disc;

[0033] 5. Connecting components; 501. Connecting bracket; 502. Mounting cylinder; 503. Torsion spring;

[0034] 6. Watch strap;

[0035] 7. Quick-connect assembly; 701. Fixing post; 702. Connecting cylinder; 703. Compression spring. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] Please see Figure 1 , Figure 2 and Figure 4 This embodiment of a watch accessory replacement structure includes a watch case 1 and a set of connecting blocks 101 disposed on the outer surface of the watch case 1. A set of ventilation blocks 2 arranged in a circle are disposed at the bottom of the watch case 1. Each connecting block 101 is integrally formed with the watch case 1. The integral forming of the watch case 1 and the connecting blocks 101 can ensure the overall mechanical strength and improve the connection stability. A ventilation groove 201 is disposed between every two adjacent ventilation blocks 2. The ventilation blocks 2 and the ventilation groove 201 can facilitate the entry of external airflow into the bottom of the watch case 1 and improve the ventilation of the bottom of the watch face. A contact plate 3 is disposed between a set of ventilation blocks 2. A set of distributed rubber protrusions 301 are disposed on the skin-contacting surface of the contact plate 3. The rubber protrusions 301 can improve the user's comfort when wearing in winter, avoid direct contact between the watch case 1 and the skin, and at the same time, allow a certain gap between the watch case 1 and the skin of the wrist to facilitate the passage of external airflow.

[0038] Please see Figure 1 , Figure 2 and Figure 4 Each ventilation slot 201 is designed as an isosceles trapezoid, which facilitates airflow. Each ventilation block 2 has a mating groove 202 on one side. The circumferential surface of the contact plate 3 is provided with a set of mating cards 302. Each mating card 302 is interference-fitted with the mating groove 202 adjacent to it. When installing the contact plate 3, it is placed between a set of ventilation blocks 2 and then the contact plate 3 is rotated to screw the mating card 302 into the mating groove 202, thereby realizing the installation of the contact plate 3. A connecting shaft 4 is rotatably connected between every two adjacent connecting blocks 101. A torque disk 401 is fixedly connected to the middle end of each of the two connecting shafts 4.

[0039] Please see Figure 1 , Figure 2 and Figure 5Each connecting shaft 4 has a connecting component 5 on its outer surface. Each connecting component 5 includes a connecting bracket 501. The middle ends of the two connecting brackets 501 are fixedly connected to the mounting cylinders 502. The bottom ends of the two connecting brackets 501 are arc-shaped. Each mounting cylinder 502 is rotatably connected to the connecting shaft 4 that is close to it. Each mounting cylinder 502 is provided with a torsion spring 503 between it and the torsion disc 401 that is close to it. Through the setting of the torsion spring 503, the connecting brackets 501 can be automatically reset. After the watch is worn, the strap 6 binds the watch case 1 to the wrist. The bottom ends of the two connecting brackets 501 are squeezed and can be flipped upward, thereby wrapping the sides of the wrist bone, reducing the gap at the connection between the strap 6 and the watch case 1, and preventing the watch from shifting and rotating during wear.

[0040] Please see Figure 1 , Figure 2 and Figure 3 The top of each of the two connecting frames 501 is disc-shaped, and one side of each connecting block 101 is provided with an arc-shaped protrusion. The top of each connecting frame 501 is slidably connected to the arc-shaped protrusion that is close to it. By setting the arc-shaped protrusion, the swing range of the connecting frame 501 can be limited.

[0041] Please see Figure 1 , Figure 2 and Figure 6 Each of the two connecting components 5 has a watch strap 6 at its bottom. One end of each watch strap 6 is rotatably connected to the adjacent connecting component 5 via a quick-connect component 7. Each quick-connect component 7 includes a fixing post 701. The two fixing posts 701 are fixedly connected to one end of the adjacent watch strap 6. Each fixing post 701 has a connecting tube 702 slidably sleeved at both ends. Each connecting tube 702 is connected to one end of the adjacent fixing post 701 with a compression spring 703. Each connecting tube 702 is slidably inserted into the adjacent connecting frame 501. With the connecting tube 702 and the compression spring 703, when connecting the watch strap 6, simply press the connecting tube 702 to move it closer to the fixing post 701, then align the connecting tube 702 with the bottom end of the connecting frame 501. The compression spring 703 then resets the connecting tube 702, allowing it to insert into the connecting frame 501, thus completing the quick installation or removal.

[0042] In this embodiment, a watch accessory replacement structure is designed by combining circumferentially arranged ventilation blocks 2 and isosceles trapezoidal ventilation slots 201 at the bottom of the watch case 1 to form an air convection channel, effectively enhancing the air circulation efficiency at the bottom of the watch body. This, combined with the distributed rubber convex balls 301 structure on the contact plate 3, maintains the airflow channel, solving the problem of stuffiness and sweat accumulation caused by the close contact between the traditional mechanical watch case back and the skin. The torsion spring 503 and the connecting bracket 501 allow the connecting bracket 501 to adjust its wrapping angle according to the shape of the wrist bone. When worn, the bottom end of the connecting bracket 501 is pressed and flipped. Through the restoring force of the torsion spring 503, the watch strap 6 achieves an adaptive fit to the wrist bone curve, eliminating the gap and misalignment problem of traditional fixed connection structures and avoiding discomfort caused by excessive restraint. The quick-connect component 7 allows for easy removal and installation of the watch strap 6 by pressing, significantly improving the efficiency of accessory replacement.

[0043] The working principle of the above embodiment is as follows: When worn, the circumferentially arranged ventilation blocks 2 at the bottom of the watch case 1 and the isosceles trapezoidal ventilation groove 201 form an air convection channel. Outside air enters through the wide opening of the trapezoidal groove of the ventilation groove 201. With the distributed protrusion structure of the rubber convex ball 301 of the contact plate 3, a floating gap is formed between the skin and the watch case 1 to ensure breathability. When worn, the watch strap 6 pulls the arc-shaped bottom end of the connecting frame 501 to flip it over. At the same time, the torsion spring 503 between the connecting shaft 4 and the torsion plate 401 is compressed. The spring generates a reset torque that matches the shape of the wrist bone, so that the connecting frame 501 always maintains the wrapping force on the curve of the wrist bone. The arc-shaped protrusion limiting structure on the connecting block 101 limits the swing angle to prevent excessive deformation. When installing the watch strap 6, press the connecting cylinder 702 of the quick-connect assembly 7 to compress the compression spring 703. When installing, align the connecting frame 501 slot, and the compression spring 703 pushes the connecting cylinder 702 to insert, which improves the speed of changing the watch strap 6.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A watch accessory replacement structure comprising a watch case (1) and a set of connecting blocks (101) provided on the outer surface of the watch case (1), characterized in that: The bottom of the watch case (1) is provided with a plurality of ventilation blocks (2) arranged in a circle, ventilation grooves (201) are arranged between every two adjacent ventilation blocks (2), a contact disc (3) is arranged between a plurality of the ventilation blocks (2), and the skin-contacting surface of the contact disc (3) is provided with a plurality of rubber convex balls (301) arranged in a distribution manner; Two connecting shafts (4) are rotatably connected between every two adjacent connecting blocks (101), and the middle ends of the two connecting shafts (4) are fixedly connected with a torsion disc (401); The outer surface of each connecting shaft (4) is provided with a connecting assembly (5), each connecting assembly (5) comprises a connecting frame (501), the middle ends of the two connecting frames (501) are fixedly connected with a mounting cylinder (502), the bottom ends of the two connecting frames (501) are arc-shaped, each mounting cylinder (502) is rotatably connected with the connecting shaft (4) adjacent thereto, and a torsion spring (503) is arranged between each mounting cylinder (502) and the torsion disc (401) adjacent thereto. The bottom ends of the two connecting assemblies (5) are provided with watch bands (6), and one end of the two watch bands (6) is rotatably connected with the connecting assembly (5) adjacent thereto through a quick connection assembly (7).

2. The watch accessory replacement structure according to claim 1, characterized by: Each quick connection assembly (7) comprises a fixed column (701), the two fixed columns (701) are fixedly connected with one end of the watch band (6) adjacent thereto, the two ends of each fixed column (701) are slidably sleeved with a connecting cylinder (702), a compression spring (703) is arranged between one end of each connecting cylinder (702) and the fixed column (701) adjacent thereto, and each connecting cylinder (702) is slidably inserted with the connecting frame (501) adjacent thereto.

3. The watch accessory replacement structure according to claim 1, characterized by: The top ends of the two connecting frames (501) are disc-shaped, one side surface of each connecting block (101) is provided with an arc-shaped protrusion, and the top ends of each connecting frame (501) are slidably connected with the arc-shaped protrusion adjacent thereto.

4. The watch accessory replacement structure according to claim 1, characterized by: One side surface of each ventilation block (2) is provided with a matching groove (202), and the circumferential surface of the contact disc (3) is provided with a plurality of matching cards (302), each matching card (302) is in interference fit with the matching groove (202) adjacent thereto.

5. The watch accessory replacement structure according to claim 1, characterized by: Each ventilation groove (201) is isosceles trapezoidal.

6. The watch accessory replacement structure according to claim 1, characterized by: Each connecting block (101) and the watch case (1) are integrally formed.

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