Structure of watchcase and watch strap which are fixed by pressing structure engaging with elastic pin

Abstract

The application relates to a structure of a watch strap and a watchcase which are fixed by a pressing structure engaging with an elastic pin. The watchcase is provided with a connection head, the connection head is provided with an elastic pin fixing hole adjacent to an end portion of the connection head and for disposing an elastic pin structure. An end portion of the watch strap is provided with the pressing structure and a connection head receiving recess. An end portion of the elastic pin structure in the elastic pin fixing hole is inserted into an elastic pin engaging hole defined in the watch strap by spring elasticity, an end portion of the pressing structure abuts against the end portion of the elastic pin structure in the elastic pin engaging hole. The structure is simple and practical.

Claims

1. A structure of a watch strap and a watchcase which are fixed by a pressing structure engaging with an elastic pin, comprising: the watchcase (1) and the watch strap (2), wherein the watchcase (1) is provided with a connection head (5), the connection head (5) is provided with elastic pin fixing holes (15) adjacent to an end portion of the connection head (5) and respectively for disposing elastic pin structures (3); wherein an end portion of the watch strap (2) is provided with the pressing structure (4) and a connection head receiving recess (14); wherein an end portion of the elastic pin structure (3) disposed in each of the elastic pin fixing holes (15) is inserted into a corresponding one of elastic pin engaging holes (13) defined on the watch strap (2) by spring elasticity, an end portion of the pressing structure (4) abuts against the end portion of the elastic pin structure (3) inserted into the corresponding one of the elastic pin engaging holes (13); wherein the pressing structure (4) comprises a pressing surface (7), pressing convexes (8) and a pressing clasp (9), the pressing convexes (8) and the pressing clasp (9) are positioned opposite to the pressing surface (7); the watch strap (2) is provided with a pressing counterbore (11), a pressing clasp receiving hole (12) communicated with the pressing counterbore (11), and the elastic pin engaging holes (13) matched with the pressing convexes (8) of the pressing structure (4); and a U-shaped groove (16) is provided on the connection head (5) to allow the pressing clasp (9) passing therethrough; wherein the pressing convexes (8) are located two opposite sides of the pressing clasp (9), and the elastic pin fixing holes (15) are located two opposite sides of the U-shaped groove (16); wherein each of the elastic pin structure (3) comprises an elastic pin (18), an elastic pin fixing column (10), and a spring (19) arranged between the elastic pin (18) and the elastic pin fixing column (10) to make the elastic pin (18) be movably connected with the elastic pin fixing column (10); the elastic pin (18) is positioned at an end of the elastic pin structure (3) and formed with an elastic pin buckle convex (17), the elastic pin fixing column (10) is formed with a limiting portion (6) matched with the elastic pin buckle convex (17), and the elastic pin fixing column (10) is received in the elastic pin fixing hole (15); wherein the pressing convexes (8) are inserted into the elastic pin engaging holes (13) respectively, an end of the pressing clasp (9) away from the pressing surface (7) is formed with a lug boss, the lug boss is fitted into the pressing clasp receiving hole (12) and positionally limited by the pressing counterbore (11), and a tail end of the elastic pin (18) abuts against one of the pressing convexes (8); wherein a height of the pressing convex (8) is equal to a depth of the elastic pin engaging hole (13); and the tail end of the elastic pin (18) is a curved surface structure.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic view of a structure of the disclosure.

(2) FIG. 2 is a schematic structural view of FIG. 1 in a disassembled state, showing a watchcase and a watch strap are separated.

(3) FIG. 3 is a cross sectional view of the structure of the disclosure in an assembled state.

(4) FIG. 4 is an enlarged schematic view of a dotted portion of FIG. 3.

(5) FIG. 5 is a schematic structural view showing a pressing clasp of FIG. 4 in an assembled state.

(6) FIG. 6 is a cross sectional view showing the watchcase and a watch strap are separated.

(7) FIG. 7 is an enlarged schematic view of a portion of FIG. 6.

(8) FIG. 8 is an exploded schematic view of FIG. 1.

(9) FIG. 9 is an enlarged schematic view of a portion of FIG. 8.

(10) FIG. 10 is a schematic diagram showing a process of a pressing structure is engaged with the watch strap.

(11) FIG. 11 is a schematic diagram showing a process of an elastic pin structure is engaged with an elastic pin fixing hole.

(12) FIG. 12 is a schematic structural view of the watchcase and the watch strap in an assembled state.

(13) FIG. 13 is a schematic structural view of the elastic pin structure.

(14) FIG. 14 is a schematic structural view of the pressing structure.

(15) Descriptions of reference numerals: 1watchcase; 2watch strap; 3elastic pin structure; 4pressing structure; 5connection head; 6limiting portion; 7pressing surface; 8pressing convex; 9pressing clasp; 10elastic pin fixing column; 11pressing counterbore; 12pressing clasp receiving hole; 13elastic pin engaging hole; 14connection head receiving recess; 15elastic pin fixing hole; 16Ushaped groove; 17elastic pin buckle convex; 18elastic pin; 19spring.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

(16) The technical solutions in the embodiments of the disclosure are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the disclosure. It is obvious that the described embodiments just are a part of the embodiments, not all embodiments of the disclosure. All other embodiments could be obtained by those skilled in the art based on the embodiments of the present disclosure without creative efforts are within the scope of the present disclosure.

(17) Referring to FIGS. 1-12, the disclosure provides a structure of a watch strap and a watchcase which are fixed by a pressing structure engaging with an elastic pin. The structure includes a watch strap 1 and a watchcase 6. One of ordinary skill in the art understands that the watch strap 2 may include two sections that capable of being snap-fitted together or separated, and the watch strap 2 may also just include one section capable of being folded or unfolded. The watchcase 1 is provided with a connection head 5, the connection head 5 is provided with an elastic pin fixing hole 15 adjacent to an end portion of the connection head 5 and for disposing an elastic pin structure 3. An end portion of the watch strap 2 is provided with a pressing structure 4 and a connection head receiving recess 14, an end portion of the elastic pin structure 3 disposed in the elastic pin fixing hole 15 is inserted into an elastic pin engaging hole 13 defined on the watch strap 2 by spring elasticity. An end portion of the pressing structure 4 abuts against the end portion of the elastic pin structure 3 in the elastic pin engaging hole 13. The elastic pin structure 3 includes an elastic pin 18, an elastic pin fixing column 10, and a spring 19 for connecting an end portion of the elastic pin 18 to the elastic pin fixing column 10, the elastic pin 18 is positioned at an end of the elastic pin structure 3. An elastic pin buckle convex 17 matched with a limiting portion 6 is provided at a connection of the elastic pin 18 with the spring 19, and the elastic pin fixing column 10 is clamped in the elastic pin fixing hole 15. A height of a pressing convex structure 8 is equal to a depth of the elastic pin engaging hole 13, and a tail end of the elastic pin 18 is a curved surface structure.

(18) The pressing structure 4 includes a pressing surface 7, the pressing convex 8 and a pressing clasp 9, the pressing convex 8 and the pressing clasp 9 are positioned at a side opposite to the pressing surface 7. The watch strap 2 is provided with a pressing counterbore 11, a pressing clasp receiving hole 12 and the elastic pin engaging hole 13 all matched with the pressing structure 4, and a U-shaped groove 16 is provided on the connection head 5 to avoid the pressing clasp 9.

(19) The connection head 5 may be disposed with two elastic pin structures 3, and the pressing structure 4 includes two pressing convexes 8 matched with the two elastic pin structures 3.

(20) In summary, the disclosure can replace the watch strap very conveniently without other accessory tools. When the pressing structure is pressed to enforce the elastic pin structure back into the elastic pin fixing hole, the connection head of the watchcase could be pulled out from the watch strap, in other words, a fixing structure between the watchcase ant the watch strap is opened. At this time, the watch strap can be replaced and would not cause any damage to the watchcase or the watch strap. The structure is simple and practical.

(21) In an alternative embodiment, the watch strap is provided with the connection head, the watchcase is provided with the pressing structure, the watch strap and the watchcase can be fixed together in a same manner with a same principle as described above, this is a conventional replacement method of the present disclosure.

(22) Skilled person in the art may make some modifications and substitutions under the teaching of the technical solution of the disclosure. These modifications or substitutions, which are based on the essences of the technical solution of disclosure, are still within the scope of the technical solutions of the embodiments of the disclosure.