TWI735027B - A clock chain assembly with multiple physical connections - Google Patents

Abstract

The invention discloses a clock chain assembly with multiple physical connections including a groove chain link, which comprises a link base and a groove base. The link base is arranged at both ends in the lateral direction where there are a first through hole and a second through hole penetrating in a lateral direction and aligning to form a first axis. The link base is also equipped with a first cylindrical portion and a second cylindrical portion. The first cylindrical portion has a first shaft hole penetrating in a lateral direction and the second one has a second shaft hole penetrating in a lateral direction. The first shaft hole and the second shaft hole align in a lateral direction to form a second axis. The groove base is integrally formed with or mounted to the link base at a central position between the first axis and the second axis of the link base. The bottom of the groove base is provided with a containing groove that is upwardly recessed and penetrates the groove base in the front-rear direction for the hose or cable to pass through.

Description

Corresponding to the multi-attribute physical connection watch chain element

The invention relates to a watch chain element, in particular to a watch chain element corresponding to a multi-attribute physical connection.

In response to the needs of daily life, new types of wrist-worn devices have been developed, such as wrist-worn spray devices and wrist-worn mobile terminals with large high-efficiency antennas. However, the prior art bracelet elements cannot transmit liquids and gases, let alone Said to be able to simultaneously transmit multiple physical properties such as liquid, gas and electric waves.

In view of the above-mentioned shortcomings of the prior art, it is necessary to design a watch chain element corresponding to the physical connection of multiple attributes.

The technical problem to be solved by the present invention is to provide a watch chain element corresponding to a multi-attribute physical connection, which has high reliability and durability, and can transmit multiple physical attribute substances at the same time.

In order to solve the above technical problems, the technical solution of the present invention is: a watch chain element corresponding to a multi-attribute physical connection, which includes a groove link, the groove link includes a link base and a groove base, the link base At both ends in the length direction are provided along A first through hole and a second through hole penetrating in the length direction, the first through hole and the second through hole are aligned in the length direction to form a first axis, and the link base is provided with a first protruding forward from the link base A cylindrical portion and a second cylindrical portion, the first cylindrical portion is provided with a first shaft hole penetrating in the length direction, the second cylindrical portion is provided with a second shaft hole penetrating in the length direction, A shaft hole and a second shaft hole are aligned in the length direction to form a second axis, the second axis is parallel to the first axis, and the groove base is on the first axis and the second axis of the link base The central position between the two is integrally formed with the base of the chain link or installed at the position, and the bottom side of the groove base is provided with a recessed and accommodating groove that penetrates the groove base in the width direction. The groove links are connected together to form a groove link belt, and the groove link or the receiving groove of the groove link belt is used for soft throat or cable to pass through, so that the corresponding multi-attribute physically connected watch chain element Able to transmit liquid, gas and electric waves.

Compared with the prior art, the present invention has at least the following beneficial effects: the groove link is provided with a receiving groove that penetrates the groove base in the width direction, and the receiving groove is used for the soft throat or cable to pass through. The throat or cable passes through the receiving groove to connect each unit, so that a variety of wristband types can be combined to make the development of new wrist-worn devices have more possibilities, and the reliability and durability are high, and it is easy to install and remove , Easy to organize and repair. Flexible hoses can transmit liquids and gases, round cables can transmit electric waves, and more than one hose or cable can transmit more than one physical attribute at the same time.

The present invention also includes the following further improvements: Further, both ends of the groove base in the width direction are respectively provided with vertical surfaces in the shape of an inverted "concave" shape, and the bottom edge corners of the two vertical surfaces are inclined with the tool. The chamfered configuration of the surface, the receiving groove is in the middle position between the first axis and the second axis, to ensure that the impact of the hose or cable when the groove chain is curled is minimized .

Further, the base of the chain link is higher than the base of the groove, and the base of the groove is connected to a middle forward position of the base of the chain and partly between the first cylindrical part and the second cylindrical part. The base of the groove It is higher than the first cylindrical part and the second cylindrical part to ensure that the base of the link and the base of the groove can cover and protect the soft throat or cable when the grooved chain belt is curled.

Further, the first cylindrical portion and the second cylindrical portion are both structurally symmetrical and are arranged along the second axis to ensure the correct orientation of the first cylindrical portion and the second cylindrical portion.

Further, the bottom side of the link base is provided with two circular arc grooves capable of connecting the first cylindrical part and the second cylindrical part of the other grooved link, and a first cylindrical part is provided between the two circular arc grooves. The step can fit the top end of the groove base of another groove link to ensure that several groove links can be connected together.

Further, the first shaft hole and the second shaft hole are respectively installed with one-way spring shafts, and the opposite ends of the two one-way spring shafts are respectively inserted into the first through hole and the second through hole of the other groove link. Holes to ensure that several groove links can be connected together to form a groove chain belt. The one-way spring shaft is designed to minimize the length of the spring shaft to ensure that the length of the receiving groove is sufficient.

Further, the base of the chain link further includes protruding wings protruding upward and backward from the middle of the base of the chain link. The length of the protruding wings is greater than the length of the receiving groove. The accommodating portion can accommodate the rearwardly protruding part of the convex wing of the other grooved link, and the convex wing can strengthen the strength of the middle position of the grooved link and cover the grooves when the chain belt is curled and generated in each groove The gap between the chain links.

Further, the bracelet element corresponding to the multi-attribute physical connection further includes an opening and closing base, the opening and closing base includes a body portion, and the body portion is provided with a receiving cavity and notches located at both ends of the receiving cavity. The cavity is used to accommodate a spare length of hose or cable, and the notch is used to correspond to The receiving groove at the base of the connecting groove, one end of the hose or cable is received and connected in the receiving cavity, and the other end passes through the slot and then penetrates into the receiving groove. The receiving cavity, the slot and the receiving groove form a complete The channel is connected to ensure that the bracelet element corresponding to the multi-attribute physical connection can simultaneously adjust the length of the hose or the cable and the groove chain belt.

Further, the opening and closing base further includes a connecting cover rotatably connected to one end of the main body part, the other end of the connecting cover is rotatably connected to a frame part, and the other end of the frame body part rotates. The bracelet elements are connected in a manner, and the connecting cover and the frame body can be joined to cover the receiving cavity, so as to facilitate the arrangement of the inside of the receiving cavity.

Further, the main body of the opening and closing base is provided with a notch at one or both ends with a chain link base or a first cylindrical portion and a second cylindrical portion, which are used to directly connect with the grooved chain link so as to It is easier to assemble the wristband.

A: Groove link

A2-1: First groove link

A2-2: The second groove link

A3: Third groove link

A4: The fourth groove link

A5: Box link

B: Open and close the base

B0: lock screw

B1: Electrical connector

B2: Port cover

B3: Notch

B4: Cylindrical connector

B5: Body part

B6: Frame body

B7: Connection cover

B8: containment chamber

B9: Restricted block

C: Ordinary base

11: Link base

111: first through hole

112: second through hole

113: First axis

114: arc groove

115: First Step

12: The first cylindrical part

121: first shaft hole

123: second axis

13: The second cylindrical part

131: second shaft hole

14: groove base

141: Containment Groove

143: Vertical plane

145: Inclined surface

15: One-way spring shaft

16: Convex Wing

17: Containment Department

31: Cable

41: reservoir

42: Automatic spraying device

43: display screen

44: Press the switch

45: Sensor

51: Terminal

52: Antenna

53: battery

71: Flat cable

72: connection line

Figure 1 is a perspective view of a wristband composed of groove links and an opening and closing base.

Figure 2 is a perspective view of the bottom side obliquely rearward of the grooved link.

Fig. 3 is a perspective view of the top side oblique front perspective view of the grooved link.

Figure 4 is a perspective view of the grooved link and the one-way spring shaft not assembled together.

Figure 5 is a front cross-sectional view of the grooved chain link and the one-way spring shaft assembled together.

Fig. 6 is an exploded view of the grooved chain link of the second embodiment.

Fig. 7 is a schematic diagram showing the positions of the first axis and the second axis of the groove link.

Figures 8 to 11 show four variants of the groove link.

Fig. 12 is a schematic cross-sectional view of the state when the grooved chain belt is straightened.

Figure 13 is a schematic diagram of the position of the hose or cable in the receiving groove.

Fig. 14 is a schematic cross-sectional view of the grooved chain belt in the state of extreme flexion.

Figure 15 is a perspective view of the first embodiment of the opening and closing base

Figure 16 is a perspective view of the opening and closing base.

Fig. 17 is a perspective view of the second embodiment of the opening and closing base.

Figure 18 is a perspective view of the opening and closing base from another perspective

Figures 19 to 20 are diagrams of two states in which the opening and closing base is opened.

Figure 21 is a perspective view of a grooved chain belt composed of several grooved links.

Figure 22 is a perspective view of a wrist-worn spray device combined with an opening and closing base and a common base.

Figure 23 is a diagram of the basic operation concept of a wrist-worn spray device.

Figure 24 shows the combination of three opening and closing bases and one common base.

Figure 25 is a perspective view of a wrist-worn wireless broadband sharing device

Figure 26 is a diagram of the basic operation concept of a wrist-worn wireless broadband sharing device.

Figure 27 is a perspective view of the box link opened.

Figure 28 is a perspective view of the box link installed on the chain belt.

Fig. 29 is an embodiment of watch chain elements corresponding to three physical connections of attributes.

Fig. 30 is an embodiment of installing a flat cable corresponding to the multi-attribute physical connection of the bracelet element.

The present invention will be further described below in conjunction with the drawings and embodiments.

As shown in Figure 1, a bracelet element corresponding to a multi-attribute physical connection includes a number of groove links and an opening and closing base, which can be equipped with a flexible throat, a circular multi-core cable and a coaxial guided wave cable at the same time.

As shown in FIGS. 2 to 5, it is a first embodiment of a groove link A. The groove link A includes a link base 11 and a groove base 14. Both ends of the link base 11 in the length direction are provided with a first through hole 111 and a second through hole 112 penetrating in the length direction, the first through hole 111 and the second through hole 112 are aligned in the length direction to form a first axis 113. The link base 11 is provided with a first cylindrical portion 12 and a second cylindrical portion 13 protruding forward from the link base 11, and the first cylindrical portion 12 is provided with a first cylindrical portion penetrating in the length direction. A shaft hole 121, the second cylindrical portion 13 is provided with a second shaft hole 131 penetrating in the length direction, the first shaft hole 121 and the second shaft hole 131 are aligned in the length direction to form a second axis 123, the The second axis 123 is parallel to the first axis 113.

The groove base 14 is integrally formed with the link base 11 at a central position between the first axis 113 and the second axis 123 of the link base 11. The bottom side of the groove base 14 is provided with a receiving groove 141 that is recessed and penetrates the groove base 14 in the width direction. A number of groove links A are connected together to form a groove link belt. The groove link A Or the receiving groove 141 of the groove link is used for the soft throat or the cable 31 to pass through so that the bracelet element connected to the corresponding multi-attribute physical connection can transmit liquid, gas and electric waves.

The front and rear ends of the groove base 14 in the width direction are respectively formed as two vertical surfaces 143 in an inverted “concave” shape, and the bottom edge corners of the two vertical surfaces 143 are chamfered with the inclined surface 145. The receiving groove 141 is located at an intermediate position between the first axis 113 and the second axis 123 to ensure that the impact on the hose or the cable 31 is minimized when the groove chain is curled.

As shown in Figure 3, the link base 11 is higher than the groove base 14. The groove base 14 is connected to the front middle position of the link base 11 and is partially located in the first cylindrical portion 12 and the second cylindrical portion. Between 13, the groove base 14 is higher than the first cylindrical portion 12 and the second cylindrical portion 13, to ensure that the link base 11 and the groove base 14 can cover and protect the hose or cable when the groove chain belt is curled. 31. First tube The shape portion 12 and the second cylindrical portion 13 are structurally symmetrical and are both arranged along the second axis 123 to ensure that the orientation of both the first cylindrical portion 12 and the second cylindrical portion 13 is correct.

The bottom side of the link base 11 is provided with two circular arc grooves 114 that can connect the first cylindrical part and the second cylindrical part of the other grooved link, and a first step 115 is provided between the two circular arc grooves 114 It can fit the top end of the groove base of another groove link.

The first shaft hole 121 and the second shaft hole 131 are respectively installed with a one-way spring shaft 15, and the opposite ends of the two one-way spring shafts 15 are respectively inserted into the first through hole and the second through hole of the other groove link. , To ensure that a number of groove links can be connected together to form a groove chain belt. The one-way spring shaft 15 is designed to minimize the length of the spring shaft to ensure that the length of the receiving groove 141 is sufficient.

The link base 11 also includes a convex wing 16 protruding upward and backward from the middle of the link base 11. The length of the convex wing 16 is greater than the length of the receiving groove 141, and the front end of the convex wing 16 is recessed backward to form a receiving portion 17. The accommodating portion 17 can accommodate the rearwardly protruding part of the convex wing of the other grooved link. The convex wing 16 can strengthen the strength of the middle position of the grooved link A and cover the grooved chain when it is curled. The gap between each groove link.

As shown in Figures 6 to 7, it is the second embodiment of the grooved link A. The only difference from the first embodiment is that the groove base 14 of the second embodiment is assembleably mounted on the link base 11 The first axis 113 and the second axis 123 are at a central position between the two, and the groove base 14 of the first embodiment is integrally formed on the link base 11 at the same position.

Figures 8 to 11 show four variants of the groove link: the first groove link A2-1, the second groove link A2-2, the third groove link A3, and the fourth groove link A4 . Please combine the front part of the first groove link A2-1 shown in Figure 1, Figure 12, and Figure 14 to connect the groove link A, the second groove link A2-2, and the first groove link A2-1. The four-groove link A4, the opening and closing base B and the ordinary base C, the rear of the first groove link A2-1 is connected to the second groove link A2-2, which is used to fine-tune the length of the groove link belt.

The front of the second groove link A2-2 is connected to the first groove link A2-1, and the rear of the second groove link A2-2 is connected to the groove link A and the first groove link A2-1 And the third groove link A3.

Both the front and rear of the third groove link A3 can connect the groove link A and the rear of the second groove link A2-2, the fourth groove link A4, the opening and closing base B and the normal base C.

Both the front part and the rear part of the fourth groove link A4 can connect the groove link A with the front part of the first groove link A2-1 and the third groove link A3. The third groove link A3 and the fourth groove link A4 are used to switch the connection direction of the groove link A.

As shown in Figures 12 and 13, which are the state when the grooved chain belt is straightened, the central axis of the hose or cable 31 and the central axis of the spring shaft are connected. Figure 14 shows the state of the grooved chain belt in the limit curling state. The buckling angle limit between each link is 45 degrees to ensure that the grooved chain belt is subjected to the soft throat or cable 31 when the grooved chain belt is curled at the limit. The impact is minimized.

As shown in Figures 15 to 20, the bracelet element corresponding to the multi-attribute physical connection also includes an opening and closing base B. The opening and closing base B includes a body portion B5. The body portion B5 is provided with a receiving cavity B8 and a receiving cavity B8. Slots B3 at both ends of the cavity B8, the receiving cavity B8 is used to accommodate a spare length of hose or cable 31, and the slot B3 is used to correspond to the receiving groove 141 of the connecting groove base 14, the hose or cable One end of 31 is received and connected in the receiving cavity B8, and the other end passes through the slot B3 and then penetrates into the receiving groove 141. The receiving cavity B8, the slot B3 and the receiving groove 141 form a complete connection channel to ensure the The bracelet elements corresponding to the multi-attribute physical connection can simultaneously adjust the length of the soft throat or the cable 31 and the groove chain strap.

The opening and closing base B also includes a connecting cover B7 rotatably connected to one end of the body part B5, the other end of the connecting cover B7 is rotatably connected to a frame part B6, and the other end of the frame part B6 is rotatably connected The bracelet element, the connecting cover B7 and the frame body B6 can be joined to cover the receiving cavity B8 to facilitate the arrangement of the inside of the receiving cavity B8. The body part B5 of the opening and closing base B is provided with a notch B3. One or both ends have a link base or a first cylindrical part and a second cylindrical part, so as to be directly connected to the grooved link A, so as to be assembled The wristband is more convenient.

FIG. 15 is a perspective view of the first type of opening and closing base B, which includes an electrical connector B1 and a port cover B2. The connector B1 is a pogo pin connector. Fig. 16 is a perspective view of the opening and closing base, which includes a notch B3 provided at one end of the main body B5. FIG. 17 is a perspective view of the second type of opening and closing base B, which includes a cylindrical connector B4 and a port cover B2. The cylindrical connector B4 is used to correspond to a soft hose or a coaxial cable 31. Figure 18 is a perspective view of the opening and closing base from another perspective, which includes a notch B3 provided at one end of the body portion B5, a frame portion B6 and a connecting cover B7 in the middle of the frame portion B6. The connecting cover B7 can be turned over. One end of the frame body B6 can be connected to the cover B7 as an axis for rotational movement.

As shown in Figures 19 to 20, the body portion B5 is provided with a receiving cavity B8 and a hose limiting block B9 located in the receiving cavity B8. There is no certain shape restriction in the receiving cavity B8, and the hose or cable 31 The end of the hose or cable 31 is accommodated in the accommodation cavity B8, the hose or cable 31 is retractably installed in the accommodation cavity B8, and the hose restriction block B9 limits the extension limit state of the hose or cable 31. When more than one hose or cable 31 is installed, the hose limiting block B9 will be set to have an interface function. The main body B5 is also provided with a locking screw B0 installed on its side, and the screw B0 is used to fasten the unit of the wrist-worn device. The locking screw B0, the electrical connector B1, and the port cover B2 are only exemplary structures.

Figure 21 is a grooved chain belt composed of several grooved links A.

Figure 22 is a wrist-worn spray device composed of an opening and closing base and a common base. It includes a liquid storage cylinder 41, an automatic sprayer 42 and a hose 31. The liquid in the liquid storage cylinder 41 is transmitted through the hose 31 To the automatic spraying device 42. FIG. 23 is a wrist-worn spray device worn on the hand, which includes a display screen 43, a push switch 44, and a sensor 45, and the sensor 45 is used for sensing spraying. The dotted line in Figure 23 is the spraying path.

Figure 24 shows the combination of three opening and closing bases and a common base

Figure 25 shows three opening and closing bases combined with a common base to form a wrist-worn wireless broadband sharing device equipped with a large and high-performance antenna. It can be assembled on a common base C with an LTE MIMO terminal 51 and uses coaxial guided waves. The cable is connected to the antenna 52 on the opening and closing base B, and a round multi-core cable is used to connect the battery 53 on the other opening and closing base B.

Figure 26 is an illustration of the basic operating concept of a wrist-worn wireless broadband sharing device equipped with a large high-efficiency antenna.

Figures 27 to 28 are perspective views of the box link A5, which is used to replace the accommodating cavity B8 of the opening and closing base B when the assembly lacks the opening and closing base B.

Fig. 29 is an embodiment of a watch chain element corresponding to three types of physical connections, which includes three flexible throats or cables 31 and a box link A5. The width of the receiving groove 141 of the groove link A in the length direction directly affects the number of flexible throats that can be set. Figure 29 shows how to use a groove bracelet composed of the groove link A of the wider receiving groove 141 to set it. It can correspond to the physical connection of the three attributes at the same time.

FIG. 30 is an embodiment of the flat cable 71 installed on the bracelet element corresponding to the multi-attribute physical connection. Connect the connecting wire 72 at the end of the flat cable.

Compared with the prior art, the bracelet element corresponding to the multi-attribute physical connection of the present invention can combine a variety of wristband types to make the development of a new type of wrist-worn device have more possibilities.

As shown in Figure 29, the watch chain element corresponding to the physical connection of multiple attributes can simultaneously correspond to the physical transmission of multiple attributes. As shown in Figure 22 to Figure 23, the bracelet element corresponding to the multi-attribute physical connection can correspond to the transmission of liquid or gas. As shown in Figures 24 to 26 and Figure 30, the bracelet elements corresponding to the multi-attribute physical connection can correspond to the transmission of electric waves. As shown in Figure 1, Figure 21, Figure 22, Figure 24 and Figure 29, the bracelet elements corresponding to the multi-attribute physical connection can combine various types of bracelets.

The component structure is simple but integrates a number of important concepts and new elements, including: a new wrist-worn device is designed based on the corresponding multi-attribute physical connection of the chain element. The structure and appearance have a certain degree of randomness, and the reliability and durability are high. , Easy to install and disassemble, easy to organize and repair, easy to produce and low cost, and the design has strong continuity. The production of grooved chain links can make full use of 3D printing technology to achieve the best results, and can be matched with the current wrist-worn equipment on the market Design a new wrist-worn device that can enhance the functions and capabilities of the wrist-worn devices currently on the market.

Based on the above points, the structure of the groove link and the opening and closing base must be as simple as possible to obtain the best balance and effect. The design of the groove link and the opening and closing base corresponds to a multi-unit wrist-worn device that uses a hose or cable to connect each unit, so each unit can transmit one or more of radio waves, liquids, and gases. In addition, the common base can be customized to fit a specific unit, and the common base or other matching components or units can create more changes.

The groove chain belt is an open structure, so the soft throat or cable in the receiving groove is in a natural state. There are notches on both sides of the opening and closing base to allow the hose or cable to pass through, so the accommodating cavity of the opening and closing base is not limited to adjusting the length of the hose or cable. It also has the function of adding components. can. The hose or cable can be selectively configured, so multiple different devices can be installed on the component at the same time.

The present invention is not limited to the above-mentioned specific implementation manners. Starting from the above-mentioned concept and without creative work, various changes made by those skilled in the art fall within the protection scope of the present invention.

A: Groove link

B: Open and close the base

C: Ordinary base

Claims (9)

A watch chain element corresponding to a multi-attribute physical connection, comprising: a groove link. The groove link includes a link base and a groove base. Both ends of the link base in the length direction are provided with penetrating through in the length direction. A first through hole and a second through hole, the first through hole and the second through hole are aligned in the length direction to form a first axis, the link base is provided with a first cylindrical portion protruding forward from the link base With the second cylindrical portion, the first cylindrical portion is provided with a first shaft hole penetrating in the length direction, the second cylindrical portion is provided with a second shaft hole penetrating in the length direction, the first shaft hole and the first shaft hole The two shaft holes are aligned in the length direction to form a second axis, the second axis is parallel to the first axis, and is characterized in that: the groove base is located between the first axis and the second axis of the link base The central position of the groove is integrally formed with the link base or installed at this position. The bottom side of the groove base is provided with a receiving groove that is recessed and penetrates the groove base in the width direction. When a number of groove links are connected Together, they can form a grooved chain belt. The grooved link or the receiving groove of the grooved chain belt is used for soft throat or cable to pass through, so that the corresponding multi-attribute physical connection bracelet element can transmit liquid, gas and Electric wave; and the base of the chain link also includes protruding wings protruding upward and backward from the middle of the base of the chain link, the length of the protruding wing is greater than the length of the receiving groove, and the front end of the protruding wing is recessed backward to form an accommodating portion , The accommodating part can accommodate the rear protruding part of the convex wing of the other groove link. The bracelet element corresponding to the multi-attribute physical connection according to claim 1, wherein the front and rear ends of the groove base in the width direction are respectively formed as two vertical surfaces in an inverted "concave" shape, and the bottom of the two vertical surfaces The edge corner is a chamfered configuration of the inclined surface of the adopting tool, and the receiving groove is located at an intermediate position between the first axis and the second axis. The corresponding multi-attribute physically connected bracelet element according to claim 1, wherein the base of the link is higher than the base of the groove, and the base of the groove is located at the front of the middle of the base of the link. It is located between the first cylindrical portion and the second cylindrical portion, and the groove base is higher than the first cylindrical portion and the second cylindrical portion. According to claim 1, the corresponding multi-attribute physically connected bracelet element, wherein the first cylindrical portion and the second cylindrical portion are both structurally symmetrical and are both arranged along the second axis. According to claim 1, the corresponding multi-attribute physical connection bracelet element, wherein the bottom side of the link base is provided with two arc grooves for connecting the first cylindrical part and the first cylindrical part of another grooved link Two cylindrical parts. A first step is provided between the first cylindrical part and the second cylindrical part to be able to fit the top end of the groove base of the other groove link. For the bracelet element corresponding to the multi-attribute physical connection as described in claim 1, the first shaft hole and the second shaft hole are respectively installed with a one-way spring shaft. The bracelet element corresponding to the multi-attribute physical connection as described in claim 1, further comprising an opening and closing base, the opening and closing base includes a body portion provided with a receiving cavity and notches located at both ends of the receiving cavity, the The accommodating cavity is used to accommodate a spare length of hose or cable. This slot is used to correspond to the accommodating groove at the base of the connecting groove. One end of the hose or cable is accommodated and connected in the accommodating cavity and the other end passes through the slot. Passing into the receiving groove, the receiving cavity, the notch and the receiving groove form a complete connection channel. As described in claim 7, the opening and closing base also includes a connecting cover rotatably connected to one end of the body, and the other end of the connecting cover is rotatably connected to a frame. The body part, the other end of the frame body part is rotatably connected with the bracelet element, and the connecting cover and the frame body part can cover the receiving cavity in a joint manner. According to claim 7 corresponding to the multi-attribute physically connected bracelet element, one or both ends of the body portion of the opening and closing base provided with a notch have the link base or the first cylindrical portion and the second cylindrical portion The shaped part is used to directly connect with the groove link.

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