CN204422981U - Hollow watch watchcase - Google Patents

Abstract

A hollow watch case relates to a watch case. The hollow watch case comprises a watch case (1), lugs (4) arranged on both sides of the watch case, and an accommodating space (2) is arranged inside the watch case, and the accommodating space (2) is defined by the watch wall (3 ) is formed around; the inside of the surface wall (3) is hollow, and the hollow cavity (7) is surrounded by the shell wall (6). The utility model can reduce the weight of the shell while ensuring the strength of the shell, and can realize 3ATM waterproof; the processing is convenient, the processing cost is greatly reduced compared with the ordinary K gold watch, the hardness can almost reach the hardness of 18K gold, and the wear resistance is good; at the same time The lower the volume, the sales cost of the electroformed pure gold watch is greatly reduced.

Description

hollow watch case

technical field

The utility model relates to a watch case.

Background technique

Existing watch case refers to the shell part of the watch head, its function is to contain and protect the internal parts of the watch, such as the movement, dial, hands, etc., while providing the watch with a fashionable and charming appearance. The parts that are closely connected with the watch case are: watch mirror, bottom cover, crown, push button, etc. In addition to directly protecting the internal components of the watch, the watch case also largely determines the various performance indexes of the watch, such as: water resistance, dust resistance, magnetic resistance, shock resistance, etc. The materials of the watch case are K gold, gold-plated, titanium, stainless steel, semi-steel plated Luo, alloy shell and so on. Existing case metal watch walls are all made of solid, which makes the metal watch too heavy. When using precious metals to make the case, the cost is too high.

Contents of the invention

The purpose of the utility model is to provide a hollow watch case which reduces the weight of the case.

A technical solution adopted by the utility model to achieve the above purpose is: a hollow wrist watch case, including a watch case, ear feet arranged on both sides of the watch case, a housing space is provided inside the watch case to accommodate The space is surrounded by the surface wall; the inside of the surface wall is hollow, and the shell wall forms a hollow cavity.

Further, the shell wall of the surface wall is of equal thickness.

Further, the accommodating space is an annular hollow structure.

Further, the thickness of the shell wall is 170 micrometers to 5 millimeters.

Further, the ears and feet are hollow, and the hollows of the ears and feets are integrated with the hollows of the surface wall.

Further, the watch case and lugs are composed of electroformed deposition layers.

Further, reinforcing ribs or reinforcing columns are arranged in the cavity of the surface wall.

The utility model can reduce the weight of the shell while ensuring the strength of the shell, and can realize 3ATM waterproof; the processing is convenient, the processing cost is greatly reduced compared with the ordinary K gold watch, the hardness can almost reach the hardness of 18K gold, and the wear resistance is good; at the same time The lower the volume, the sales cost of the electroformed pure gold watch is greatly reduced.

Description of drawings

Fig. 1 is the schematic diagram of the preferred embodiment of the utility model;

Fig. 2 is a schematic sectional view of a preferred embodiment of the utility model;

Fig. 3 is a schematic cross-sectional view of the ears and feet of a preferred embodiment of the present invention;

Fig. 4 is a schematic cross-sectional view of the overbearing tube part of the preferred embodiment of the present invention.

Detailed ways

The utility model will be further described below in conjunction with accompanying drawing and embodiment:

As shown in Figures 1 and 2, a hollow wrist watch case includes a watch case 1 and lugs 4 arranged on both sides of the watch case. Inside the watch case, there is an accommodation space 2, which is formed by the watch case. The wall 3 is formed around; the inside of the surface wall 3 is hollow, and the hollow cavity 7 is surrounded by the shell wall 6 . The accommodating space 2 is used for installing components such as a movement and a dial, and the accommodating space 2 is usually designed as a ring-shaped hollow structure. The hollow structure of the surface wall 3 is a closed structure.

The shell wall 6 of the surface wall is of equal thickness. The shell wall 6 has a thickness of 170 microns to 5 mm, and the thickness of the shell wall can ensure the strength of the shell.

As shown in FIG. 3 , the lugs 4 for connecting the strap are hollow, and the hollow cavity of the lugs is connected with the hollow cavity 7 of the watch wall 3 as a whole. The lugs 4 can be integrated with the watch case 1 , and the lugs 4 are contained in the watch case 1 .

As shown in FIG. 4 , the surrounding of the bully tube 5 is also designed to be hollow, and the bully tube 5 runs through the surface wall 3 and the accommodating space 2 .

The cavity 7 of the surface wall 3 is provided with reinforcing ribs or reinforcing columns, which can strengthen the overall strength of the shell.

The utility model can be implemented by means of electroforming, especially precious metals such as gold and silver are used as materials. In the future, it can also be implemented through methods such as 3D printing.

When the electroforming process is adopted, the zinc alloy is used as the material to obtain the mold by die-casting; a certain thickness of copper is electroplated on the mold; and then a certain thickness of precious metal is electroformed on the copper electroplating layer. In this example, the precious metal is hard pure gold; The discharge hole is a hole drilled on the workpiece after electroplating copper and precious metals; the zinc alloy and copper electroplating layer that make up the model are chemically reacted and melted by adding hydrochloric acid and heating to the boiling point, and the zinc alloy is completely dissolved in hydrochloric acid, and discharged through the discharge hole, and then cleaned by water, if the cleaned watch case still contains copper plating layer, add sulfuric acid and heat to the boiling point for chemical reaction, copper is completely dissolved in sulfuric acid, through the discharge The feed hole is discharged, and finally the precious metal watch case is obtained.

The utility model can reduce the weight of the shell and at the same time ensure the strength of the shell, especially on the watch shell made of precious metal materials, which can realize 3ATM waterproof; it is convenient to process, and the processing cost is greatly reduced compared with ordinary K gold watches. It can almost reach the hardness of 18K gold, and has good wear resistance; under the same volume, the sales cost of electroformed pure gold watches is greatly reduced.

Claims (7)

1. a hollow watch watchcase, comprise watch shell (1), be arranged on the ear pin (4) of watch shell both sides, watch shell inside is provided with a spatial accommodation (2), and spatial accommodation (2) is by showing wall (3) around being formed; It is characterized in that: table wall (3) inside is hollow, surrounds cavity (7) by shell wall (6).

2. hollow watch watchcase according to claim 1, is characterized in that: shell wall (6) uniform thickness of table wall.

3. hollow watch watchcase according to claim 1, is characterized in that: spatial accommodation (2) is circular hollow structure.

4. hollow watch watchcase according to claim 1 and 2, is characterized in that: the thickness of shell wall (6) is 170 microns ~ 5 millimeters.

5. hollow watch watchcase according to claim 1, is characterized in that: ear pin (4) is hollow, and ear pin cavity connects as one with the cavity (7) of table wall (3).

6. hollow watch watchcase according to claim 1, is characterized in that: described watch shell (1) and ear pin (4) are electroformed deposit layer composition.

7. hollow watch watchcase according to claim 1, is characterized in that: be provided with reinforcement or reinforcing prop in table wall (3) cavity (7).