Watch head structure with replaceable dial plate and watch

Abstract

The utility model relates to the technical field of watches, in particular to a watch head structure with a replaceable dial plate and a watch, the watch head structure comprises the dial plate and a base plate, a positioning block is arranged in the center of the dial plate in a protruding mode, the dial plate is provided with a plurality of fastening bolts in the circumferential direction with the positioning block as the center, and a positioning hole is formed in the center of the base plate in a penetrating mode. The positioning block is arranged in the positioning hole, the chassis is provided with a plurality of clamping grooves in the circumferential direction by taking the positioning hole as the center, each clamping groove comprises a movable part, a guide part and a clamping part which are connected in sequence, the groove wall of each clamping groove extends towards the groove position and is provided with a guide sliding edge, and the guide sliding edge extends towards the clamping part from the guide part. The fastening bolt comprises a screw rod and a rod head, the rod head is in sliding connection with the guide sliding edges, the screw rod is located between the guide sliding edges on the two sides, and the rod head is connected with the clamping portion in a clamped mode. According to the watch head structure, the dial plate can be replaced through pressing and rotating, replacement is convenient, and the wearing requirements of different scenes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of watches, in particular to a watch head structure with a replaceable dial and a watch. Background Art

[0002] The watches currently on the market generally include a watch head and a watch strap, the watch head is an integrated type, the watch head surface is a mirror surface, the watch head bottom surface is a metal bottom plate, and the watch movement is installed inside the watch head. However, such a watch head is fixed and single in form, and cannot meet the needs of wearing in different scenes and different outfits. Utility Model Content

[0003] In order to solve the above problems, the utility model aims to provide a watch head structure with a replaceable dial, which can be disassembled and installed by rotation, and is easy to replace to meet the wearing needs of different scenes and clothing.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A watch head structure with a replaceable dial comprises a watch dial and a chassis detachably connected to the watch dial, a positioning block protruding from the center of the watch dial, a plurality of fastening bolts being arranged along a circumferential direction with the positioning block as the center, a positioning hole being penetrated through the center of the chassis, the positioning block being mounted in the positioning hole, a plurality of clamping grooves being arranged along a circumferential direction with the positioning hole as the center, the clamping groove comprising a movable part, a guide part and a clamping part being connected in sequence, a groove wall of the clamping groove being provided with a guide sliding edge extending toward the groove position, the guide sliding edge being extended from the guide part toward the clamping part, the fastening bolt comprising a screw rod and a rod head, the rod head being slidably connected to the guide sliding edge, the screw rod being located between the guide sliding edges on both sides, and the rod head being clamped to the clamping part.

[0006] Wherein, the clamping portion is provided with a clamping slot for mounting the rod head.

[0007] Among them, the dial is provided with an anti-scratch strip, and the anti-scratch strip is arranged along the circumferential direction with the positioning block as the center. The chassis is provided with a positioning groove and a lifting component installed in the positioning groove. The lifting component includes an elastic part and a ball. The elastic part is arranged between the positioning groove and the ball, and the ball is slidably connected to the anti-scratch strip.

[0008] Wherein, a wear-resistant layer is arranged on the side wall surface of the positioning block.

[0009] Wherein, the dial has a circular or square shape.

[0010] Wherein, the outer peripheral surface of the dial is provided with anti-slip grooves.

[0011] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0012] The beneficial effects of the utility model are as follows: the utility model is a watch head structure with a replaceable dial, a positioning block is provided at the center of the dial, a positioning hole is provided at the center of the chassis, the positioning block is installed in the positioning hole, and the positioning installation of the dial and the chassis is realized, the dial is provided with a plurality of fastening bolts along the circumferential direction with the positioning block as the center, and the chassis is provided with a plurality of clamping grooves along the circumferential direction with the positioning hole as the center, the clamping groove comprises a movable part, a guide part and a clamping part connected in sequence, the groove wall of the clamping groove is provided with a guide sliding edge extending toward the groove position, and the guide sliding edge is formed by The guide portion is extended toward the locking portion, and the fastening bolt includes a screw rod and a rod head. During installation, the positioning block is installed in the positioning hole so that the center positions of the dial and the chassis are opposite to each other, and the fastening bolt is inserted in the locking groove. The dial rotates around the positioning block so that the fastening bolt slides along the guide sliding edge and enters the locking portion so that the dial and the chassis are clamped and fixed. When replacing, the dial is rotated in the opposite direction so that the fastening bolt slides in the opposite direction along the guide sliding edge to the movable portion, and the fastening bolt leaves the locking groove so that the dial is separated from the chassis for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the watch head structure with replaceable dial of the utility model.

[0014] Figure 2 This is a schematic diagram of the structure of another type of meter head structure of the present invention.

[0015] Figure 3 It is a structural schematic diagram of the dial of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the dial of the utility model from another angle.

[0017] Figure 5 It is a structural schematic diagram of the chassis of the utility model.

[0018] Figure 6 It is a structural schematic diagram of the chassis of the utility model from another angle.

[0019] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0020] Notes on the attached drawings:

[0021] 1. dial; 11. positioning block; 111. wear-resistant layer; 12. fastening bolt; 121. screw rod; 122. rod head; 13. anti-scratch strip; 14. anti-skid groove;

[0022] 2. chassis; 21. positioning hole; 22. snap-in groove; 221. guide sliding edge; 222. movable portion; 223. guide portion; 224. snap-in portion; 2241. snap-in slot; 23. positioning groove; 24. lifting assembly; 241. elastic member; 242. ball bearing. DETAILED DESCRIPTION

[0023] In the following description, all concepts related to directionality or orientation such as up, down, left, right, front and back are with reference to the position states shown in the drawings being described, and therefore cannot be understood as a special limitation on the technical solution provided by the present utility model.

[0024] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings:

[0025] like Figure 1-7 As shown, a dial head structure with a replaceable dial comprises a dial 1 and a chassis 2 detachably connected to the dial 1, wherein a positioning block 11 is protruding from the center of the dial 1, and the dial 1 is provided with a plurality of fastening bolts 12 along the circumferential direction with the positioning block 11 as the center, a positioning hole 21 is penetrated through the center of the chassis 2, the positioning block 11 is installed in the positioning hole 21, and the chassis 2 is provided with a plurality of clamping grooves 22 along the circumferential direction with the positioning hole 21 as the center, and the clamping grooves 22 It includes a movable part 222, a guide part 223 and a locking part 224 connected in sequence. The groove wall of the locking groove 22 is provided with a guide sliding edge 221 extending toward the groove position. The guide sliding edge 221 is extended from the guide part 223 to the locking part 224. The fastening bolt 12 includes a screw rod 121 and a rod head 122. The rod head 122 is slidably connected to the guide sliding edge 221. The screw rod 121 is located between the guide sliding edges 221 on both sides, and the rod head 122 is locked with the locking part 224.

[0026] The dial head structure of the present embodiment is a replaceable dial. The dial 1 is provided with a positioning block 11 at the center, and the chassis 2 is provided with a positioning hole 21 at the center. The positioning block 11 is installed in the positioning hole 21 to realize the positioning and installation of the dial 1 and the chassis 2. The dial 1 is provided with a plurality of fastening bolts 12 along the circumferential direction with the positioning block 11 as the center, and the chassis 2 is provided with a plurality of clamping grooves 22 along the circumferential direction with the positioning hole 21 as the center. The clamping groove 22 includes a movable part 222, a guide part 223 and a clamping part 224 connected in sequence. The groove wall of the clamping groove 22 is provided with a guide sliding edge 221 extending toward the groove position, and the guide sliding edge 221 is extended from the guide part 223 to the clamping part 224. The extended setting is that the fastening bolt 12 includes a screw rod 121 and a rod head 122. During installation, the positioning block 11 is installed in the positioning hole 21 so that the center positions of the dial 1 and the chassis 2 are opposite, and the fastening bolt 12 is inserted in the clamping groove 22. The dial 1 rotates around the positioning block 11, so that the fastening bolt 12 slides along the guide sliding edge 221 and enters the clamping portion 224, so that the dial 1 and the chassis 2 are clamped and fixed; when replacing, the dial 1 is rotated in the opposite direction, so that the fastening bolt 12 slides in the opposite direction along the guide sliding edge 221 to the movable portion 222, and the fastening bolt 12 leaves the clamping groove 22, so that the dial 1 is separated from the chassis 2, so as to be replaced.

[0027] like Figures 5 to 7 As shown, the clamping portion 224 of this embodiment is provided with a clamping slot 2241 for mounting the rod head 122. The clamping slot 2241 of the clamping portion 224 is slightly deeper than the guide portion 223, so that after the rod head 122 slides toward the clamping portion 224, the rod head 122 can be firmly clamped in the clamping slot 2241 and is not easy to slide out, thereby achieving a firmly clamped fixation. When replacing, the dial 1 is pushed to lift the rod head 122 from the clamping slot 2241, and the dial 1 is rotated to slide the fastening bolt 12 along the guide sliding edge 221 to the movable portion 222, thereby disengaging from the clamping slot 22.

[0028] like Figure 3 , 5As shown in FIGS. 6 and 7, the dial 1 of this embodiment is provided with an anti-scratch strip 13, and the anti-scratch strip 13 is arranged along the circumferential direction with the positioning block 11 as the center. The chassis 2 is provided with a positioning groove 23 and a lifting assembly 24 installed in the positioning groove 23, and the lifting assembly 24 includes an elastic member 241 and a ball 242. The elastic member 241 is arranged between the positioning groove 23 and the ball 242, and the ball 242 is slidably connected to the anti-scratch strip 13. The notch diameter of the positioning groove 23 is slightly smaller than the diameter of the ball 242. Under the action of the elastic member 241, the ball 242 partially leaks out of the positioning groove 23 and will not be separated from the positioning groove 23, thereby playing a lifting role. During installation, the chassis 2 is turned upside down on the bottom surface of the dial 1, and the fastening bolt 12 is inserted into the movable part 222 of the clamping groove 22. The rod head 122 and the guide sliding edge 221 are at the same height, and the fastening bolt 12 cannot slide into the guide part 223. The chassis 2 is pressed to retract the ball 242 into the positioning groove 23. The height of the guide sliding edge 221 of the chassis 2 drops below the rod head 122. At the same time, the chassis 2 is rotated so that the rod head 122 can smoothly slide along the guide sliding edge 221 to the clamping part 224. Stop pressing the chassis 2. The ball 242 is pushed out of the positioning groove 23 under the action of the elastic member 241, and the chassis 2 moves away from the dial 1, so that the rod head 122 is firmly buckled in the clamping part 224, thereby fixing the dial 1 and the chassis 2. When replacing, press the chassis 2 to retract the ball 242 into the positioning groove 23, and the height of the guide sliding edge 221 of the chassis 2 drops below the rod head 122. Rotate the chassis 2 in the opposite direction, and the rod head 122 slides from the locking portion 224 along the guide sliding edge 221 to the movable portion 222, thereby leaving the locking groove 22, so that the dial 1 and the chassis 2 are separated.

[0029] like Figure 3 As shown, the side wall surface of the positioning block 11 of this embodiment is provided with a wear-resistant layer 111. The wear-resistant layer 111 can increase the wear resistance of the positioning block 11 and avoid the positioning block 11 from being worn during multiple installations and replacements.

[0030] like Figure 1 and Figure 2 As shown, the dial 1 of this embodiment has a circular or square shape. The dial 1 has a variety of selectable shapes, and different dials 1 can be used according to different scenes, which is more ornamental.

[0031] like Figures 1 to 4 As shown, the outer circumference of the dial 1 of this embodiment is provided with anti-skid grooves 14, which can increase friction so as to facilitate the rotation of the dial 1 during installation or replacement. The outer circumferential surface of the circular dial 1 is provided with anti-skid grooves 14, which can achieve an anti-skid effect at a full angle of 360 degrees. The square dial 1 is provided with anti-skid grooves 14 on at least two sides, and the anti-skid grooves 14 are arranged on both sides to facilitate the rotation of the dial 1.

[0032] A watch of this embodiment includes a watch movement, a watch strap and the above-mentioned watch head structure, wherein the watch head structure includes a dial 1 and a chassis 2, wherein the chassis 2 is detachably mounted at the bottom of the dial 1, the watch movement is mounted in the dial 1, and the watch straps are mounted on both sides of the chassis 2. When the watch is worn, it is worn on the wrist through the watch straps on both sides, and when a different style of the watch dial 1 needs to be replaced, the watch dial 1 is directly pressed to separate the watch dial 1 with the watch movement from the chassis 2, and another watch dial 1 with the watch movement is replaced and mounted on the chassis 2, so that different styles of the watch dial 1 can be replaced without untying the watch strap, which has more choices and richness.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the technical scope of the present utility model. Technical personnel in this industry can make some deformations and modifications inspired by the present technical solution. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model are still within the scope of the technical solution of the present utility model.

Claims

1. A watch head structure with a replaceable dial, characterized in that: The invention comprises a dial (1) and a chassis (2) detachably connected to the dial (1), wherein a positioning block (11) is protruding from the center of the dial (1), and the dial (1) is provided with a plurality of fastening bolts (12) along the circumferential direction with the positioning block (11) as the center, a positioning hole (21) is penetrated through the center of the chassis (2), the positioning block (11) is installed in the positioning hole (21), and the chassis (2) is provided with a plurality of clamping grooves (22) along the circumferential direction with the positioning hole (21) as the center, and the clamping grooves (22) include movable bolts (22) connected in sequence. The clamping groove (22) comprises a guide sliding edge (221) extending from the groove wall of the clamping groove (22) toward the groove position, and the guide sliding edge (221) is extended from the guide portion (223) toward the clamping portion (224). The fastening bolt (12) comprises a screw rod (121) and a rod head (122). The rod head (122) is slidably connected to the guide sliding edge (221). The screw rod (121) is located between the guide sliding edges (221) on both sides, and the rod head (122) is clamped to the clamping portion (224).

2. The watch head structure with replaceable dial according to claim 1, characterized in that: The locking portion (224) is provided with a locking slot (2241) for mounting the rod head (122).

3. The watch head structure with replaceable dial according to claim 1, characterized in that: The dial (1) is provided with an anti-scratch strip (13), and the anti-scratch strip (13) is arranged along the circumferential direction with the positioning block (11) as the center. The chassis (2) is provided with a positioning groove (23) and a lifting component (24) installed in the positioning groove (23). The lifting component (24) includes an elastic member (241) and a ball (242). The elastic member (241) is arranged between the positioning groove (23) and the ball (242), and the ball (242) is slidably connected to the anti-scratch strip (13).

4. The watch head structure with replaceable dial according to claim 1, characterized in that: The side wall surface of the positioning block (11) is provided with a wear-resistant layer (111).

5. The watch head structure with replaceable dial according to claim 1, characterized in that: The dial (1) has a circular or square shape.

6. The watch head structure with replaceable dial according to claim 1, characterized in that: The outer peripheral surface of the dial (1) is provided with an anti-slip groove (14).

7. A watch, characterized in that: It comprises a watch movement, two watch straps and a watch head structure according to any one of claims 1 to 6, wherein the watch movement is installed in the watch head structure, and the two watch straps are respectively arranged on both sides of the watch head structure.

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