Watch rear cover assembly movable structure and watch case

Abstract

The utility model relates to the technical field of watches, and discloses a movable structure of a watch rear cover assembly, which is high in orientation accuracy and capable of positioning in any direction, and comprises a bottom cover, a positioning ring, a rotating piece and a C-shaped check ring, and one surface of the bottom cover is provided with a mounting groove and a positioning groove; the positioning ring is accommodated in the mounting groove and is provided with a positioning lug embedded into the positioning groove; an elastic buckling tongue piece is arranged on one surface, opposite to the bottom cover, of the positioning ring; a plurality of helical teeth forming a tooth-shaped area are arranged on the rotating piece, and a clamping groove for inserting the tail end of the elastic buckling tongue piece is formed between every two adjacent helical teeth; the rotating piece is provided with an annular notch, a gear ring comprising a plurality of teeth is arranged above the annular notch, an insertion groove is formed between every two adjacent teeth, a containing groove is formed between the gear ring and the annular notch, and a first limiting groove is formed in the side wall of the mounting groove; the C-shaped check ring is embedded between the first limiting groove and the containing groove and provided with a clamping column. The rotating piece is extruded by the elastic buckling tongue piece to be close to the C-shaped check ring so that the clamping column can be embedded into the inserting groove. The utility model also discloses a watch case comprising the movable structure of the watch rear cover assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of watches, in particular to a watch back cover component movable structure and a watch case. Background Art

[0002] The back cover of a watch is an important part of the watch case. It is used to encapsulate the movement housed in the case, and protect the movement together with the middle case and the front cover glass of the case. At present, the back covers of watches on the market are generally connected to the middle case of the case by threaded connection, screw connection, press-fitting, push-in installation, etc. Among them, the threaded back cover is widely used in the watch case due to its reliable structure, good sealing, and convenient processing. However, when the outer surface of the back cover is provided with trademarks, brand logos, characters and other patterns, it is often necessary to align the above patterns. The conventional method of rotating and tightening the threaded back cover is difficult to ensure the accuracy of positioning. The accuracy of pattern positioning will affect the aesthetics of the watch, making it inconsistent with the public aesthetics, and even produce bad implications due to the inversion of the pattern, affecting the expression of product design. Utility Model Content

[0003] Based on this, it is necessary to provide a watch back cover assembly movable structure and a watch case with high directional accuracy and capable of being positioned in any direction to address the above-mentioned deficiencies.

[0004] A watch back cover assembly movable structure, comprising:

[0005] A bottom cover, the bottom cover is used to be embedded in the back of the watch middle case, a mounting groove is provided on a side of the bottom cover facing away from the watch middle case, a positioning groove is provided on a side wall of the mounting groove adjacent to the bottom of the mounting groove, and a first limiting groove is provided on the side wall of the mounting groove adjacent to the notch of the mounting groove;

[0006] A positioning ring, the positioning ring is received in the mounting groove, a positioning lug is provided on the ring side of the positioning ring and is embedded in the positioning groove, and at least one elastic buckling tongue piece is provided on a side of the positioning ring facing away from the bottom cover and can swing along the depth direction of the mounting groove;

[0007] A rotating member, the rotating member is buckled at the notch of the installation groove, a side of the rotating member facing the inner cavity of the installation groove is provided with a plurality of oblique teeth distributed along an annular path to form a toothed area, and a slot for inserting the end of the elastic buckling tongue is formed between two adjacent oblique teeth; an annular notch surrounding the toothed area is opened on the ring side of the rotating member on the outer side of the toothed area, a gear ring is provided above the annular notch on the outer side of the toothed area, the gear ring includes a plurality of teeth distributed in an annular manner and fixedly connected to the outer side of the oblique teeth, a slot is formed between adjacent teeth, and a receiving groove corresponding to the first limiting groove is formed between the gear ring and the annular notch; and

[0008] A C-shaped retaining ring is embedded in the first limiting groove, and the inner side of the C-shaped retaining ring is located in the receiving groove. At least one clamping column is arranged on the C-shaped retaining ring, and the sum of the thickness of the C-shaped retaining ring and the height of a single clamping column is less than or equal to the height of the receiving groove; the rotating part approaches the C-shaped retaining ring under the extrusion of the elastic snap-fitting tongue, and the clamping column is embedded in the slot to lock the rotating part.

[0009] In one of the embodiments, a avoidance notch is provided on the positioning ring, the elastic snap-fit ​​tongue is located on a side of the avoidance notch adjacent to the rotating member, and the elastic snap-fit ​​tongue has a fixed portion fixedly connected to the inner side surface of the avoidance notch, and a swinging portion swinging around the fixed portion when subjected to an external force.

[0010] In one embodiment, the end of the swing portion is bent in a direction away from the bottom cover to form a distal end of the elastic locking tongue abutting against the slot.

[0011] In one of the embodiments, the slot includes a vertical surface and an inclined surface set at an angle; the end of the elastic snap-fit ​​tongue has a guide surface that fits the inclined surface, and the shape of the guide surface is adapted to the shape of the inclined surface.

[0012] In one of the embodiments, the bottom height of the toothed ring is greater than the top height of the toothed area, and the inner side surface of the toothed ring forms a tongue limiting portion above the toothed area.

[0013] In one embodiment, the cross section of the slot is an arc-shaped structure or a continuous broken line structure.

[0014] In one embodiment, the outer diameter of the gear ring is smaller than the outer diameter of the side surface of the rotating member facing away from the bottom cover.

[0015] The utility model also discloses a watch case, comprising a middle case and a watch glass covering the main surface of the middle case, and also comprising the above-mentioned watch back cover assembly movable structure, the bottom cover of the watch back cover assembly movable structure is detachably mounted on the back of the middle case.

[0016] In one embodiment, the watch case also includes a sealing ring, a sealing groove for embedding the sealing ring is provided on the back of the middle case, a snap ring for inserting into the mounting port on the back of the middle case is provided on one side of the bottom cover adjacent to the middle case, and a second limiting groove for limiting the contact with the inner side surface of the sealing ring is provided on the ring side of the snap ring.

[0017] In one of the embodiments, the clamping ring is threadedly connected to the mounting opening on the back side of the middle shell, or the clamping ring is tension-fitted with the mounting opening on the back side of the middle shell.

[0018] The watch back cover assembly movable structure and watch case of the utility model are implemented by setting a bottom cover, a fixed switch, a rotating part and a C-shaped retaining ring. After the watch back cover assembly movable structure is assembled and installed on the middle shell of the watch, the rotating part is squeezed toward the C-shaped retaining ring by the elastic buckling tongue piece, so that the clamping column is embedded in the slot to achieve locking of the rotating part. When the angle of the rotating part needs to be adjusted, it is only necessary to press the rotating part, the elastic buckling tongue piece is deformed, and the rotating part moves toward the bottom cover, so that the clamping column leaves the slot, releases the shortening of the rotating part, and facilitates the rotation of the rotating part, so that the rotating part rotates to a preset position. After the position of the rotating part is adjusted, it is only necessary to loosen the rotating part, and the rotating part is reset along the depth direction of the installation groove under the push of the elastic buckling tongue piece, so that the clamping column is embedded in the slot again to achieve locking of the rotating part. It can meet the rotation positioning of the rotating part in any direction, and the positioning accuracy of the pattern is high, which is conducive to the precise expression of product design. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the movable structure of the watch back cover assembly in one embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the exploded structure of the active structure of the watch back cover assembly in one embodiment of the utility model;

[0021] Figure 3 It is a schematic cross-sectional structure diagram of the unlocked state of the movable structure of the watch back cover assembly in one embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of a locked state of the movable structure of the watch back cover assembly in one embodiment of the utility model;

[0023] Figure 5 This is a structural schematic diagram of a bottom cover from one perspective in one embodiment of the utility model;

[0024] Figure 6 This is a structural schematic diagram of the bottom cover in another perspective of an embodiment of the utility model;

[0025] Figure 7 This is a schematic structural diagram of a positioning ring in an embodiment of the utility model;

[0026] Figure 8 This is a structural schematic diagram of a rotating member in an embodiment of the utility model;

[0027] Fig. 9 This is a schematic diagram of the structure of a C-type retaining ring in an embodiment of the utility model;

[0028] Fig.10 This is a schematic structural diagram of a watch case in one embodiment of the utility model;

[0029] Fig.11 The figure is a schematic diagram of the exploded structure of a watch case in one embodiment of the utility model. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0031] Please combine Figure 1-4 The utility model aims at the problem that conventional threaded back covers have low orientation accuracy and cannot meet the requirements of any orientation direction. The utility model discloses a watch back cover assembly movable structure 10 with high orientation accuracy and capable of meeting the requirements of any orientation direction. The watch back cover assembly movable structure 10 comprises a bottom cover 100, a positioning ring 200, a rotating member 300 and a C-shaped retaining ring 400. The bottom cover 100 is used to be fixedly mounted on the middle shell of the watch case. On the one hand, it is used to encapsulate the movement accommodated in the middle shell. On the other hand, the bottom cover 100 is also used to receive the positioning The ring 200, the rotating member 300 and the C-shaped retaining ring 400 are used to realize the positioning and installation of the above-mentioned components; the positioning ring 200 is used to define the position of the rotating member 300 together with the C-shaped retaining ring 400 to prevent the rotating member 300 from falling off from the bottom cover 100 after assembly. In addition, through the mutual cooperation of the positioning ring 200 and the C-shaped retaining ring 400, the rotating member 300 can be limited in the rotation direction to prevent the rotating member 300 from rotating by itself after the watch back cover assembly movable structure 10 is assembled, thereby causing the positioning failure of the rotating member 300. When the watch back cover assembly movable structure 10 is used, the side of the bottom cover 100 facing away from the middle shell is generally provided with annularly distributed text or symbols. For example, the bottom cover 100 is engraved with annularly distributed product models or parameters. When rotating, consumers can infer whether it is rotated in place according to the four points of the dial, such as 3H, 6H, 9H, and 12H. In addition, in the design of some watches, patterns are designed on the side of the bottom cover 100 facing away from the middle case and the side of the rotating part 300 facing away from the bottom cover 100 at the same time. By pressing the rotating part 300, the constraint of the C-shaped retaining ring 400 on the rotation direction of the rotating part 300 is released so as to adjust the rotation angle of the rotating part 300, so that the pattern on the rotating part 300 corresponds to the pattern on the bottom cover 100, so as to facilitate the accurate expression of the product pattern design.

[0032] For details, please combine Figure 1-9The bottom cover 100 is used to be embedded in the back of the middle case of the watch. The bottom cover 100 is provided with a mounting groove 110 on the side facing away from the middle case of the watch. The side wall of the mounting groove 110 is provided with a positioning groove 120 adjacent to the bottom of the mounting groove 110. The side wall of the mounting groove 110 is provided with a first limiting groove 130 adjacent to the notch of the mounting groove 110. That is, when the bottom cover 100 is set with the notch of the mounting groove 110 facing upward, the first limiting groove 130 is located above the positioning groove 120. The positioning ring 200 is received in the mounting groove 110. The ring side of the positioning ring 200 is provided with a positioning lug 210 embedded in the positioning groove 120. The side of the positioning ring 200 facing away from the bottom cover 100 is provided with at least one elastic buckling tongue 220 that can swing along the depth direction of the mounting groove 110. After the positioning ring 200 is inserted into the mounting groove 110, the positioning lug 210 on the ring side of the positioning ring 200 is inserted into the positioning groove 120 on the inner wall of the mounting groove 110 to achieve a fixed connection between the positioning ring 200 and the bottom cover 100, and prevent the positioning ring 200 from rotating relative to the bottom cover 100 under the action of external force. In this embodiment, two positioning grooves 120 are arranged at intervals on the side wall of the mounting groove 110, and two positioning lugs 210 corresponding to the two positioning grooves 120 are arranged on the ring side of the positioning ring 200, and each positioning lug 210 is correspondingly inserted into one positioning groove 120, so as to increase the matching area between the positioning ring 200 and the bottom cover 100 and improve the stability of the connection between the positioning ring 200 and the bottom cover 100. The elastic snap-fit ​​tongue piece 220 is mainly used to provide elastic force for restoring when squeezing the rotating member 300, and to knock the rotating member 300 to make a knocking sound when the rotating member 300 rotates, thereby providing a sound effect for the rotation of the watch case, and at the same time, it can also provide an auxiliary positioning function for the rotating member 300. There is a preset angle between the end of the elastic snap-fit ​​tongue piece 220 and a side surface of the positioning ring 200 facing the notch of the installation groove 110, that is, when the elastic snap-fit ​​tongue piece 220 is not subjected to an external force, there is a preset distance between the end of the elastic snap-fit ​​tongue piece 220 and a side surface of the positioning ring 200 facing the notch of the installation groove 110, so as to provide conditions and a deformable area for the deformation of the elastic snap-fit ​​tongue piece 220 under the extrusion of an external force. In this embodiment, four elastic snap-fit ​​tongues 220 are spaced apart on a side of the positioning ring 200 facing away from the bottom cover 100. This increases the effective area of ​​the elastic snap-fit ​​tongues 220 on the positioning ring 200 on the rotating member 300, thereby enhancing the sound of the elastic snap-fit ​​tongues 220 hitting the rotating member 300.

[0033] In one embodiment, please combine Figure 3 and Figure 7, a position avoidance notch 230 is provided on the positioning ring 200, and the position avoidance notch 230 at least penetrates the side of the positioning ring 200 facing the rotating member 300. In this embodiment, the position avoidance notch 230 penetrates the side of the positioning ring 200 facing the rotating member 300, the side of the positioning ring 200 facing away from the rotating member 300, and the side surface of the positioning ring 200. The elastic snap-fit ​​tongue piece 220 is located on the side of the position avoidance notch 230 adjacent to the rotating member 300, and the elastic snap-fit ​​tongue piece 220 has a fixed portion fixedly connected to the inner side surface of the position avoidance notch 230, and a swinging portion swinging around the fixed portion as the center when subjected to an external force. It should be emphasized that in this embodiment, the elastic snap-fit ​​tongue piece 220 extends along the arc path direction, and the side of the elastic snap-fit ​​tongue piece 220 facing away from the center of the positioning ring 200 is adapted to the shape of the inner surface of the mounting groove 110 to avoid interference between the two. In this embodiment, the end of the swing portion is warped in the direction away from the bottom cover 100, forming the end of the elastic buckle tongue piece 220 abutting against the card slot. Further preferably, there is a first angle between the swing portion and a side surface of the positioning ring 200 facing the notch of the installation slot 110, and there is a second angle between the end of the elastic buckle tongue piece 220 and a side surface of the positioning ring 200 facing the notch of the installation slot 110, and the second angle is greater than the first angle, so that after the movable structure 10 of the watch back cover assembly is assembled, the end of the elastic buckle tongue piece 220 can abut and cooperate with the limiting area on the rotating member 300.

[0034] The rotating member 300 is buckled at the notch of the installation groove 110. A plurality of oblique teeth 310 distributed along an annular path are provided on the rotating member 300 facing the inner cavity of the installation groove 110 to form a toothed area. A slot 320 for inserting the end of the elastic buckling tongue 220 is formed between two adjacent oblique teeth 310. An annular notch surrounding the toothed area is provided on the ring side of the rotating member 300 on the outer side of the toothed area. A toothed ring is provided above the annular notch on the outer side of the toothed area. The toothed ring includes a plurality of teeth 330 distributed in an annular manner and fixedly connected to the outer side of the oblique teeth 310. A slot 340 is formed between adjacent teeth 330. A receiving slot 350 corresponding to the first limiting groove 130 is formed between the toothed ring and the annular notch. In this embodiment, the cross section of the slot 340 is an arc-shaped structure or a continuous broken line structure. Further preferably, the cross section of the slot 340 is an arc-shaped structure, and the teeth 330 are chain tooth-shaped structures. The C-shaped retaining ring 400 is embedded in the first limiting groove 130, and the inner side of the C-shaped retaining ring 400 is located in the receiving groove 350. At least one clamping column 410 is provided on the C-shaped retaining ring 400, and the sum of the thickness of the C-shaped retaining ring 400 and the height of a single clamping column 410 is less than or equal to the height of the receiving groove 350. In this embodiment, the height of the receiving groove 350 refers to the dimension of the receiving groove 350 along the depth direction of the installation groove 110. By limiting the sum of the thickness of the C-shaped retaining ring 400 and the height of a single clamping column 410 to be less than or equal to the height of the receiving groove 350, it is ensured that when the rotating member 300 is pressed, the clamping column 410 can leave the slot 340 to release the constraint on the rotating member 300. On the one hand, the C-shaped retaining ring 400 is used to lock the rotating member 300 on the bottom cover 100 to prevent the rotating member 300 from falling off the bottom cover 100. On the other hand, when the rotating member 300 is squeezed by the elastic locking tongue 220, the C-shaped retaining ring 400 limits the rotating member 300 through the clamping column 410 to prevent the rotating member 300 from further rotating, thereby ensuring the reliability of the direction adjustment of the rotating member 300 and the stability of the adjusted structure. In addition, the outer diameter of the tooth ring is smaller than the outer diameter of the side of the rotating member 300 facing away from the bottom cover 100 to avoid interference between the outer side of the tooth 330 and the inner wall surface of the installation groove 110 when the rotating member 300 is installed.

[0035] Under the pressure of the elastic snap-fit ​​tongue 220, the rotating member 300 approaches the C-shaped retaining ring 400, and the clamping column 410 is embedded in the slot 340 to lock the rotating member 300; when the rotating member 300 is subjected to external pressure, the elastic snap-fit ​​tongue 220 is deformed, and the end of the elastic snap-fit ​​tongue 220 moves toward the direction close to the positioning ring 200 and deforms. At the same time, the rotating member 300 synchronously moves toward the direction close to the bottom cover 100, so that the clamping column 410 leaves the slot 340, releasing the constraint of the clamping column 410 on the rotating member 300, so that the user can turn and adjust the direction of the rotating member 300.

[0036] In this embodiment, by providing a toothed area formed by a plurality of bevel teeth 310 distributed in a ring shape, on the one hand, the positioning of the end of the elastic snap-fit ​​tongue piece 220 is achieved; on the other hand, when the constraint on the rotation direction of the rotating member 300 is released and the rotating member 300 is rotated, the watch including the active structure no longer stays at the stage where it can only satisfy the single-angle positioning function, and the rotating member 300 can be rotated and positioned at any angle selected according to the consumer's preference. At the same time, the sound property of the active structure is also developed. During the rotation of the rotating member 300, each bevel tooth 310 moves relative to the positioning ring 200, so that the end of the elastic snap-fit ​​tongue piece 220 is successively placed on each bevel tooth 310 and strikes the bevel tooth 310, making a crisp and pleasant sound, thereby enhancing the consumer's experience.

[0037] In this embodiment, the slot 320 includes a vertical surface and an inclined surface set at an angle; the end of the elastic snap-fit ​​tongue piece 220 has a guide surface that fits the inclined surface, and the shape of the guide surface is adapted to the shape of the inclined surface. The end surface of the elastic snap-fit ​​tongue piece 220 is perpendicular to its guide surface, that is, the side of the elastic snap-fit ​​tongue piece 220 that matches the slot 320 is also an inclined surface. By limiting the shape of the inner side surface of the slot 320 and the shape of the end of the elastic snap-fit ​​tongue piece 220, the rotating member 300 can only rotate in a single direction, and at the same time, the end of the elastic snap-fit ​​tongue piece 220 is positioned by the vertical surface of the slot 320, thereby improving the stability of the movable structure.

[0038] In one embodiment, the bottom height of the toothed ring is greater than the top height of the toothed area, and the inner side surface of the toothed ring forms a tongue limiting portion 360 above the toothed area. That is to say, the inner side surface of the toothed ring is used to limit the movable range of the elastic snap-fit ​​tongue 220, preventing the elastic snap-fit ​​tongue 220 from sliding out from the edge of the rotating part 300 along the area between adjacent bevel teeth 310 during installation and use, thereby causing the elastic snap-fit ​​tongue 220 to fail in limiting the rotating part 300, thereby improving the reliability of the movable structure 10 of the watch back cover assembly.

[0039] It should also be noted that the C-shaped retaining ring 400 has an opening and closing mouth 420 of which the size can be changed. A first notch 430 is provided on the outer ring side surface of the C-shaped retaining ring 400 adjacent to one end of the C-shaped retaining ring 400, and a second notch 440 is provided on the outer ring side surface of the C-shaped retaining ring 400 adjacent to the other end of the C-shaped retaining ring 400. The first notch 430 and the second notch 440 provide a gripping portion on the C-shaped retaining ring 400 so that the two ends of the C-shaped retaining ring 400 can be moved when assembling the C-shaped retaining ring 400 with the rotating member 300, so that the area enclosed by the C-shaped retaining ring 400 becomes larger, so that the C-shaped retaining ring 400 can be smoothly installed on the rotating member 300.

[0040] Please combine Figure 1 , Figure 3 , Figure 5 as well as Figure 10-11 The utility model also discloses a watch case 20, including a middle case 201 and a watch glass 202 covering the main surface of the middle case 201, and also includes the above-mentioned watch back cover assembly movable structure 10, the bottom cover 100 of the watch back cover assembly movable structure 10 can be detachably installed on the back of the middle case 201. Furthermore, the watch case 20 also includes a sealing ring 203, and a sealing groove for embedding the sealing ring 203 is provided on the back of the middle shell 201. A snap ring 140 for inserting into the mounting port on the back of the middle shell 201 is provided on one side of the bottom cover 100 adjacent to the middle shell 201. A second limiting groove 150 for limiting the inner side surface of the sealing ring 203 is opened on the ring side of the snap ring 140. That is to say, the sealing ring 203 is embedded in the second limiting groove 150 to be sleeved on the outer ring surface of the snap ring 140. Subsequently, when the bottom cover 100 is installed, after the snap ring 140 is inserted into the mounting port on the back of the middle shell 201, the outer side surface of the sealing ring 203 is embedded in the sealing groove to achieve a sealed connection between the bottom cover 100 and the middle shell 201. Further, the snap ring 140 is threadedly connected to the mounting opening on the back of the middle shell 201; or the snap ring 140 is tightly fitted with the mounting opening on the back of the middle shell 201, that is, the outer diameter of the snap ring 140 is equal to or slightly larger than the inner diameter of the mounting opening on the back of the middle shell 201. When the two are assembled, the snap ring 140 is slightly deformed by external force and embedded in the mounting opening to improve the stability of the connection between the bottom cover 100 and the middle shell 201. Preferably, the snap ring 140 is threadedly connected to the mounting opening on the back of the middle shell 201 to reduce the difficulty of installing the bottom cover 100 and the middle shell 201.

[0041] In the assembly process of the above-mentioned watch case 20, the watch back cover assembly movable structure 10 is first assembled, the positioning ring 200 is embedded in the installation groove 110 of the bottom cover 100, and the positioning lug 210 on the positioning ring 200 is tightly matched with the positioning groove 120 of the bottom cover 100, the opening and closing mouth of the C-shaped retaining ring 400 is stretched open, the C-shaped retaining ring 400 is buckled into the receiving groove 350 of the rotating part 300, and the C-shaped retaining ring 400 and the rotating part 300 are pressed into the bottom cover 100 together, wherein the oblique teeth 310 of the rotating part 300 are abutted and matched with the elastic buckling tongue 220, and a crisp and pleasant sound can be emitted when the rotating part 300 is pressed and rotated, and the teeth 330 on the ring side of the rotating part 300 cooperate with the clamping column 410 of the C-shaped retaining ring 400 for positioning. After positioning, the rotating part 300 and the C-shaped retaining ring 400 are supported by the bottom cover 100, and the watch back cover assembly movable structure 10 is assembled. Subsequently, the movable structure 10 of the watch back cover assembly is connected to the middle shell 201 through threads, and the movable structure 10 of the watch back cover assembly and the sealing ring 203 are screwed into the installation port on the back of the middle shell 201 together. The sealing ring 203 is squeezed simultaneously during the tightening process, thereby achieving the purpose of fixing the movable structure 10 of the watch back cover assembly and ensuring the sealing of the movable structure 10 of the watch back cover assembly.

[0042] After assembly, if the direction of the rotating member 300 needs to be adjusted, the rotating member 300 only needs to be pressed, and the rotating member 300 is unlocked. While pressing the rotating member 300, the rotating member 300 is rotated to any direction to meet the need of adjusting the direction of the rotating member 300. After the rotating member 300 is released, the rotating member 300 slides under the push of the elastic buckling tongue 220 until the clamping column 410 is matched with the slot 340, and the rotating member 300 is locked.

[0043] The watch back cover assembly movable structure 10 and the watch case 20 of the utility model are implemented by setting the bottom cover 100, the fixed switch, the rotating member 300 and the C-shaped retaining ring 400. After the watch back cover assembly movable structure 10 is assembled and installed on the middle case 201 of the watch, the rotating member 300 is pressed toward the C-shaped retaining ring 400 under the pressure of the elastic buckling tongue piece 220, so that the clamping column 410 is embedded in the slot 340 to achieve the locking of the rotating member 300. When the angle of the rotating member 300 needs to be adjusted, it is only necessary to press the rotating member 300, the elastic buckling tongue piece 220 is deformed, and the rotating member 300 is moved closer to the bottom cover 10. 0, so that the clamping column 410 leaves the slot 340, releases the shortening of the rotating member 300, and facilitates the rotation of the rotating member 300, so that the rotating member 300 rotates to a preset position. After the position of the rotating member 300 is adjusted, it is only necessary to loosen the rotating member 300, and the rotating member 300 is reset along the depth direction of the installation groove 110 under the push of the elastic locking tongue 220, so that the clamping column 410 is embedded in the slot 340 again to achieve the locking of the rotating member 300, which can meet the rotation positioning of the rotating member 300 in any direction, and the positioning accuracy of the pattern is high, which is conducive to the accurate expression of product design.

[0044] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A watch back cover assembly movable structure, characterized in that: include: A bottom cover, the bottom cover is used to be embedded in the back of the watch middle case, a mounting groove is provided on a side of the bottom cover facing away from the watch middle case, a positioning groove is provided on a side wall of the mounting groove adjacent to the bottom of the mounting groove, and a first limiting groove is provided on the side wall of the mounting groove adjacent to the notch of the mounting groove; A positioning ring, the positioning ring is received in the mounting groove, a positioning lug is provided on the ring side of the positioning ring and is embedded in the positioning groove, and at least one elastic buckling tongue piece is provided on a side of the positioning ring facing away from the bottom cover and can swing along the depth direction of the mounting groove; A rotating member, the rotating member is buckled at the notch of the installation groove, a side of the rotating member facing the inner cavity of the installation groove is provided with a plurality of oblique teeth distributed along an annular path to form a toothed area, and a slot for inserting the end of the elastic buckling tongue is formed between two adjacent oblique teeth; an annular notch surrounding the toothed area is opened on the ring side of the rotating member on the outer side of the toothed area, a gear ring is provided above the annular notch on the outer side of the toothed area, the gear ring includes a plurality of teeth distributed in an annular manner and fixedly connected to the outer side of the oblique teeth, a slot is formed between adjacent teeth, and a receiving groove corresponding to the first limiting groove is formed between the gear ring and the annular notch; and A C-shaped retaining ring is embedded in the first limiting groove, and the inner side of the C-shaped retaining ring is located in the receiving groove. At least one clamping column is arranged on the C-shaped retaining ring, and the sum of the thickness of the C-shaped retaining ring and the height of a single clamping column is less than or equal to the height of the receiving groove; the rotating part approaches the C-shaped retaining ring under the extrusion of the elastic snap-fitting tongue, and the clamping column is embedded in the slot to lock the rotating part.

2. The watch back cover assembly movable structure according to claim 1, characterized in that: The positioning ring is provided with an avoidance notch, the elastic snap-fit ​​tongue is located on a side of the avoidance notch adjacent to the rotating member, and the elastic snap-fit ​​tongue has a fixed portion fixedly connected to the inner side surface of the avoidance notch, and a swinging portion swinging around the fixed portion when subjected to an external force.

3. The watch back cover assembly movable structure according to claim 2, characterized in that: The end of the swinging portion is warped in a direction away from the bottom cover to form a rear end of the elastic buckling tongue piece that abuts against the card slot.

4. The watch back cover assembly movable structure according to claim 1, characterized in that: The slot comprises a vertical surface and an inclined surface arranged at an angle; the end of the elastic buckling tongue piece has a guide surface fitted with the inclined surface, and the shape of the guide surface is adapted to the shape of the inclined surface.

5. The watch back cover assembly movable structure according to claim 1, characterized in that: The bottom height of the toothed ring is greater than the top height of the toothed area, and the inner side surface of the toothed ring forms a tongue limiting portion above the toothed area.

6. The watch back cover assembly movable structure according to claim 1, characterized in that: The cross section of the slot is an arc-shaped structure or a continuous broken line structure.

7. The watch back cover assembly movable structure according to claim 1, characterized in that: The outer diameter of the gear ring is smaller than the outer diameter of the side surface of the rotating member facing away from the bottom cover.

8. A watch case, comprising a middle case and a watch glass covering a main surface of the middle case, characterized in that: It also includes the movable structure of the watch back cover assembly as described in any one of claims 1 to 7, and the bottom cover of the movable structure of the watch back cover assembly can be detachably installed on the back of the middle case.

9. The watch case according to claim 8, characterized in that: It also includes a sealing ring, a sealing groove for embedding the sealing ring is provided on the back of the middle shell, a clamping ring for inserting into the mounting opening on the back of the middle shell is provided on one side of the bottom cover adjacent to the middle shell, and a second limiting groove for limiting and abutting against the inner side surface of the sealing ring is provided on the ring side of the clamping ring.

10. The watch case according to claim 9, characterized in that: The clamping ring is threadedly connected to the mounting opening on the back side of the middle shell, or the clamping ring is tension-fitted with the mounting opening on the back side of the middle shell.

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