Air tightness testing device for watchcase keys

Abstract

The utility model relates to the preparation field of watches, in particular to an air tightness testing device for a watchcase button, which comprises a supporting part, which is provided with a supporting body for supporting the inner circumferential surface of a watchcase, and enables each surface of the watchcase button to face a wide space in a manner of supporting from the inside; the testing part is formed by combining a leak detector and a sealing structure, a leak detection head of the leak detector is communicated into the sealing structure, the sealing structure is provided with a shape matched with that of the meter shell, and the sealing structure covers the periphery of the meter shell to enable the button to be located in a sealed space; the supporting body provides a positioning mode which is fixed from the inside, the area, corresponding to the button, of the periphery of the watchcase is controlled not to be in contact, and for a sealing structure used in cooperation in the later period, the supporting body can make full contact with the area to completely wrap the button in a sealed space formed by the sealing structure and the watchcase; the leak hunting head injects gas with a certain pressure into the sealed space, and whether the button in the pressure maintaining state leaks gas or not is observed.

Description

Technical Field

[0001] The utility model relates to the field of watch preparation, in particular to an airtightness testing device for watch case buttons. Background Art

[0002] Currently, most mainstream watches are waterproof. The basic elements to achieve this waterproof function are generally reflected in the use of glue, coating and silicone.

[0003] As for the airtightness of watches, the current focus is mainly on the watch case. For example, patent No. 201911045605.1 is named as an airtight leak detection device. Because the mold is squeezed, impacted, etc., the sharp corners of the mold parting surface and the edge of the cavity molding product surface become blunt, and the bite of the mold will directly affect the quality of the watch case.

[0004] The buttons on the watch case are usually fixed to the reserved openings in the watch case using a thermoplastic fixing method. The thermoplastic processing method makes the designer believe that the sealing performance is relatively stable. Therefore, for the button part, the method of not testing is directly chosen.

[0005] At present, the airtightness of these watch buttons remains at the level of general waterproofing, and it is impossible to determine what level of waterproofing this can reach. In addition, it is also impossible to determine whether the fixing effect of thermoplastics remains consistent. Utility Model Content

[0006] In order to solve the above problems, the utility model provides an airtightness testing device for watch case buttons, which performs sealing treatment on the button area and determines the sealing effect and waterproof performance of the button by monitoring the real value of compressed air.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is: an airtightness test device for watch case buttons, characterized in that it includes:

[0008] The support part of the watch case has a supporting body that supports the inner peripheral surface of the watch case, and by supporting from the inside, each side of the watch case button faces a wide space;

[0009] The test part is composed of a leak detector and a sealing structure. The leak detector head of the leak detector is connected to the sealing structure. The sealing structure has a shape that matches the watch case. The sealing structure covers the outer circumference of the watch case so that the button is in a sealed space.

[0010] Furthermore, the supporting part includes a supporting seat, and the supporting body extends from the supporting seat.

[0011] Furthermore, the supporting part includes a soft body for auxiliary use, which is installed on the surface of the supporting body extending from the supporting seat and on the supporting plate in the supporting part, respectively corresponding to other sides of the watch case after it is put on the supporting body and does not play a supporting effect.

[0012] Furthermore, the soft body is fixed on the support plate or the support seat by screws.

[0013] Furthermore, the sealing structure includes a sealing member having a cavity opening toward the button of the watch case, the cavity surrounds the button, and after the edge of the cavity abuts against the periphery of the watch case, a sealed space is formed with the periphery of the watch case.

[0014] Furthermore, it also includes a pressing plate and a telescopic cylinder, the sealing member is assembled on the pressing plate, and the pressing plate is fixed on the piston rod of the telescopic cylinder.

[0015] Furthermore, the sealing structure also includes an auxiliary positioning block, which is fixed on the pressure plate after being sleeved on the sealing member. The positioning block has an opening structure corresponding to the sealing member, and has a groove adapted to the peripheral surface of the case.

[0016] Furthermore, a guide sleeve is provided on the support plate, and a guide column cooperating with the guide sleeve is provided below the pressing plate.

[0017] The beneficial effects of the present invention are as follows: the support body provides a fixed positioning method from the inside, so as to control the area of ​​the outer periphery of the watch case corresponding to the button to be kept from being touched. For the sealing structure used in combination later, it can fully contact the area, and completely wrap the button in the sealed space composed of the sealing structure and the watch case. The leak detection head injects gas of a certain pressure into the sealed space, and observes whether there is any leakage by observing the button after the pressure is maintained. Therefore, the present invention solves the problem of lack of air tightness test for the button, and can measure the waterproof performance level of the button in combination with the leak detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereogram of the utility model.

[0019] Figure 2 yes Figure 1 An enlarged schematic diagram of point A.

[0020] Figure 3 It is a three-dimensional diagram of the case.

[0021] Figure 4 It is a three-dimensional diagram of the sealing mechanism. DETAILED DESCRIPTION

[0022] In the specification, references to "one embodiment", "an embodiment" or "some embodiments" mean that a particular feature, structure or element described with reference to the embodiment is included in at least one embodiment of the subject matter being described. Thus, sentences in the specification saying "in one embodiment" or "in an embodiment" or "in some embodiments" do not necessarily refer to the same embodiment or embodiments. The particular features, structures or elements may be further combined in any embodiment in a suitable manner.

[0023] like Figure 1-4 As shown, this embodiment is an airtightness testing device for watch case buttons, which is mainly aimed at the problem of lack of corresponding testing equipment. The airtightness testing device is composed of a testing part and a supporting part. The supporting part plays a role in positioning the watch case 1, and the testing part provides a combination with the watch case to generate a sealed space and provide positive pressure.

[0024] The button 1 a is located on the outer peripheral surface of the watch case 1 .

[0025] The supporting part includes a supporting seat 2a and a supporting body 2b extending from the supporting seat 2a. The supporting body 2b is a part extending from the side of the supporting seat 2a. The circumferential surface of the supporting body 2b is smaller than the inner annular surface of the watch case 1. After the watch case 1 is put on the supporting body 2b, the upper surface of the supporting body 2b provides support to the watch case 1.

[0026] The test part includes a leak detector (not shown in the figure) and a sealing structure. The leak detector head of the leak detector is connected to the sealing structure. The sealing structure has a shape that matches the watch case 1. The sealing structure covers the outer circumference of the watch case 1 so that each button is in a sealed space.

[0027] During the test, the leak detection head injects gas of a certain pressure into the sealed space, and by observing the button after the pressure is maintained, whether there is a leak, the operation is simple and practical.

[0028] In some embodiments, the support portion includes a soft body for auxiliary use. There are three soft bodies, two of which are installed on the surface of the support body 2b extending from the support seat 2a, and one is installed on the support plate 2f in the support portion, respectively corresponding to the other sides of the watch case 1 after the support body 2b is covered and does not play a supporting effect, such as Figure 3 As shown, the first soft body 2c and the second soft body 2d are against the two sides of the watch case 1, and the third soft body 2e is against the lower surface of the watch case 1. The three soft bodies are mainly used to prevent the watch case 1 from shaking and tilting.

[0029] The soft body is a soft material. After the watch case 1 is put on the support body 2b, the watch case 1 squeezes the soft body to deform. The soft body can be a polyurethane PU elastomer.

[0030] Specifically, the soft body is fixed on the support plate 2f or the support seat 2a by screws.

[0031] In the embodiment, the sealing structure includes a sealing member 3a and a pressure plate 3b. The pressure plate 3b is located above the support body 2b, and the sealing member 3a is installed below the pressure plate 3b. The sealing member 3a has a cavity 3c with an opening toward the button of the watch case 1. When the pressure plate 3b moves toward the watch case 1, the cavity 3c surrounds the button, and after the edge of the cavity 3c abuts against the outer periphery of the watch case 1, a sealed space is formed with the outer periphery of the watch case 1.

[0032] The sealing member 3a is made of existing elastic material.

[0033] It should be noted that the sealing structure also includes an auxiliary positioning block 3d, which is mounted on the sealing member 3a and fixed under the pressure plate 3b. The positioning block 3d has an opening structure corresponding to the sealing member 3a, and has a groove 3e adapted to the circumferential surface of the watch case 1. When sealing, the groove 3e will preferentially constrain the upper part 1' of the watch case 1 to prevent the upper part 1' of the watch case 1 from tilting.

[0034] The sealing structure further includes a telescopic cylinder 3f, which serves as an execution unit for executing the upward and downward movement of the pressing plate 3b, and drives the pressing plate 3b to move longitudinally.

[0035] The leak detector mentioned above is a prior art. In the present solution, the leak detector only realizes the function of outputting positive pressure airflow. Therefore, the specific structure of the leak detector will not be described in detail.

[0036] In the embodiment, four sets of airtightness testing devices are provided. After one watch case 1 is assembled on the support body 2b, another watch case 1 is immediately assembled on another support body 2b.

[0037] A guide sleeve 2g is provided on the support plate 2f, and a guide column 3g cooperating with the guide sleeve 2g is provided below the pressing plate 3b.

[0038] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An air tightness test device for watch case buttons, characterized in that: Contains: The support part of the watch case has a supporting body that supports the inner peripheral surface of the watch case, and by supporting from the inside, each side of the watch case button faces a wide space; The test part is composed of a leak detector and a sealing structure. The leak detector head of the leak detector is connected to the sealing structure. The sealing structure has a shape that matches the watch case. The sealing structure covers the outer circumference of the watch case so that the button is in a sealed space.

2. The air tightness testing device for watch case buttons according to claim 1, characterized in that: The supporting part includes a supporting seat, and the supporting body extends from the supporting seat.

3. The air tightness testing device for watch case buttons according to claim 2, characterized in that: The supporting part includes a soft body and a supporting plate for auxiliary use. The soft body is installed on the surface of the supporting body extending from the supporting seat, and is installed on the supporting plate in the supporting part, respectively corresponding to the other sides of the watch case after the supporting body is covered and does not play a supporting effect.

4. The air tightness testing device for watch case buttons according to claim 3, characterized in that: The soft body is fixed on the support plate or the support seat by screws.

5. An air tightness testing device for watch case buttons according to any one of claims 3-4, characterized in that: The sealing structure includes a sealing member having a cavity opening toward the button of the watch case. The cavity surrounds the button and forms a sealed space with the outer periphery of the watch case after the edge of the cavity abuts against the outer periphery of the watch case.

6. The air tightness testing device for watch case buttons according to claim 5, characterized in that: It also comprises a pressing plate and a telescopic cylinder. The sealing member is assembled on the pressing plate, and the pressing plate is fixed on the piston rod of the telescopic cylinder.

7. The air tightness testing device for watch case buttons according to claim 6, characterized in that: The sealing structure also includes an auxiliary positioning block, which is fixed on the pressure plate after being sleeved on the sealing member. The positioning block has an opening structure corresponding to the sealing member, and has a groove adapted to the peripheral surface of the watch case.

8. The air tightness testing device for watch case buttons according to claim 7, characterized in that: A guide sleeve is arranged on the supporting plate, and a guide column matched with the guide sleeve is arranged below the pressing plate.

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