CN217605193U

CN217605193U - Underwater air tightness test product fixing jig

Info

Publication number: CN217605193U
Application number: CN202220699873.6U
Authority: CN
Inventors: 郗延志
Original assignee: Weifang Goertek Electronics Co Ltd
Current assignee: Weifang Goertek Electronics Co Ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-10-18
Anticipated expiration: 2032-03-28

Abstract

The utility model provides an underwater air tightness test product fixing jig, which comprises a profiling base, and a pressing positioning piece and a suction nozzle positioning piece which are respectively arranged at the upper side and the lower side of the profiling base; the profiling base is provided with a hollowed-out profiling groove, and a product to be tested is fixed in the profiling groove in a pressing mode through the pressing positioning piece; the suction nozzle of the suction nozzle positioning piece extends into the profile groove from the lower part of the profile groove, and the suction nozzle positioning piece is connected with external testing equipment through an air pipe. The underwater air tightness test product fixing jig can release manual fixing of products in water, and ensures that the inflation air pressure is sufficient and no pressure leakage state exists; and the utility model discloses the commonality is strong, can be applicable to different products through switching profile modeling base and suction nozzle setting element.

Description

Underwater air tightness test product fixing jig

Technical Field

The utility model relates to an air tightness test technical field, more specifically relates to a fixed tool of air tightness test product under water.

Background

Along with the rapid development of wearable equipment products, the quality requirement of related acoustic equipment on call noise reduction is an important index for measuring high-end products, and the air tightness of products is required to be detected in the research and development stage of Bluetooth earphones or sound equipment so as to guarantee the quality of research and development products.

At present, the method for testing the air tightness of the earphone in the industry mainly comprises an air tightness immersion test, a proper jig is not provided, and an air pipe is pressed on the surface of a product under water to be plugged manually. The manual operation is easily influenced by subjective factors of people, the fatigue degree is increased and the efficiency is low if the operation time is long, the air pressure of the air inlet hole is not easily ensured, and air leakage is easily caused, so that the air tightness test is unstable, the consistency of the detection result is poor, and the reliability is poor.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model aims at providing an airtight test product fixes tool under water to solve the easy problem of disappointing that current manual work leads to.

The utility model provides an underwater air tightness test product fixing jig, which comprises a profiling base, and a pressing positioning piece and a suction nozzle positioning piece which are respectively arranged at the upper side and the lower side of the profiling base; the profiling base is provided with a hollowed-out profiling groove, and a product to be tested is fixed in the profiling groove in a pressing mode through the pressing positioning piece; the suction nozzle of suction nozzle setting element follows the below in copying groove stretches into copying groove, the suction nozzle setting element passes through the trachea and is connected with external test equipment.

Wherein, the optional scheme is that the pressing positioning piece comprises a pressing cover, a guide rod and a spring; the spring is sleeved on the guide rod, the gland is sleeved at the top end of the guide rod and can rotate by taking the guide rod as a shaft; the guide rod is elastically fixed with the profiling base through the spring.

Optionally, the pressing cover includes a rotating shaft and a pressing sheet disposed perpendicular to the rotating shaft.

Optionally, the pressing positioning element comprises a positioning rotating shaft fixed on the profiling base and a pressing elastic sheet rotatably sleeved on the positioning rotating shaft; the pressing elastic sheet can rotate around the positioning rotating shaft and elastically press and fix the product to be tested in the profile groove.

Wherein, the optional scheme is that a limit pin is further arranged on the profiling base.

According to the optional scheme, two sets of pressing positioning pieces are arranged on the upper side of the profiling base and are respectively arranged on two sides of the profiling groove.

Wherein, optional scheme is, the suction nozzle setting element still including be used for connecting the suction nozzle with tracheal suction nozzle connecting rod and setting are in quick change coupler on the suction nozzle connecting rod, the suction nozzle connecting rod passes through quick change coupler with the trachea is connected.

Wherein, optionally, the suction nozzle connecting rod is fixed on the profiling base through a screw.

The lower side of the profiling base is provided with a suction nozzle positioning piece containing cavity, and the suction nozzle, the suction nozzle connecting rod and the implementation quick-change connector are contained in the suction nozzle positioning piece containing cavity.

Wherein, the selectable scheme is that an air pipe guide groove communicated with the suction nozzle positioning piece accommodating cavity is also arranged on the lower side of the profiling base; the quick-change connector is connected to the side wall of the suction nozzle connecting rod, and one end of the quick-change connector, which is connected with the air pipe, faces the air pipe guide groove.

From the above description, the underwater air tightness test product fixing jig provided by the utility model can replace manual operation with mechanical operation, release manual work to fix products in water, ensure sufficient inflation pressure and avoid pressure leakage state; and the utility model discloses can be applicable to different products through switching profile modeling base and suction nozzle setting element, convenient operation and commonality are strong.

Drawings

Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings.

In the drawings:

fig. 1 is an exploded schematic view of an underwater air tightness test product fixing jig according to an embodiment of the present invention;

fig. 2A and fig. 2B are schematic views of the combination structure of the underwater air tightness test product fixing jig according to the embodiment of the present invention at different viewing angles;

fig. 3 is a schematic structural view of a pressing positioning member according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a nozzle positioning member according to an embodiment of the present invention;

fig. 5A and 5B are respectively the use state schematic diagram of the underwater air tightness test product fixing jig according to the embodiment of the present invention.

Wherein the reference numerals include: the device comprises a profiling base 1, a profiling groove 10, a gland 2, a rotating shaft 21, a pressing sheet 22, a limiting piece 3, a guide rod 4, a spring 5, a quick-change connector 6, a suction nozzle 7, a suction nozzle connecting rod 8, a screw 9 and an air pipe 11.

The same reference numbers in all figures indicate similar or corresponding features or functions.

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the invention. In addition, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and "plurality" means two or more unless otherwise indicated.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is an exploded schematic view of an underwater air tightness test product fixing jig according to an embodiment of the present invention, and fig. 2A and 2B are respectively schematic views of a combined structure of an underwater air tightness test product fixing jig according to an embodiment of the present invention; fig. 3 is a schematic structural view of the pressing positioning member of the underwater air tightness test product fixing jig according to the embodiment of the utility model.

As shown in fig. 1, fig. 2A, fig. 2B and fig. 3, the fixing jig for underwater airtightness testing products provided by the present invention mainly comprises a profiling base 1, and a pressing positioning piece and a suction nozzle positioning piece respectively disposed at the upper and lower sides of the profiling base 1; wherein, a hollow-out profiling groove 10 is arranged on the profiling base 1, and a product to be tested is fixed in the profiling groove 10 by pressing through a pressing positioning piece; the suction nozzle 7 of the suction nozzle positioning piece extends into the profiling groove 10 from the lower part of the profiling groove 10, and the suction nozzle positioning piece is connected with external testing equipment through an air pipe.

Use the utility model discloses carry out the in-process of product airtightness test under water, place the test product that awaits measuring in the profile modeling groove 10 from the top of profile modeling base 1 earlier, the suction nozzle of suction nozzle setting element is aimed at to the gas pocket of examination product that awaits measuring, then the operation pressfitting setting element compresses tightly the examination product that awaits measuring, puts into aquatic together with the examination product that awaits measuring wherein with the tool that the pressfitting location finishes at last, through the atmospheric pressure change in the outside test equipment test trachea to confirm the gas tightness of the examination product that awaits measuring.

The pressing positioning piece can be realized in various ways. Specifically, in an embodiment of the present invention, the pressing positioning member may include a pressing cover 2, a guide rod 4 and a spring 5 as shown in fig. 1; wherein, the spring 5 is sleeved on the guide rod 4, the gland 2 is sleeved on the top end of the guide rod 4 and can rotate by taking the guide rod 4 as a shaft; the guide rod 4 is elastically fixed with the profiling base through a spring 5. Wherein, gland 2 can further include rotation axis 21 and perpendicular to the pressfitting piece 22 that rotation axis 21 direction set up, in the structure of this embodiment, spring 5 is in tensile state, still is provided with the circular recess that is used for holding the guide bar 4 that the cover is equipped with spring 5 on the profile modeling base, and the top of spring 5 is fixed on guide bar 4, and the bottom mounting of spring 5 is on the bottom surface of circular recess, and gland 2 and guide bar 4 are together through the pulling force pressfitting of spring 5 on profile modeling base 1. Before a product to be tested is placed, the rotating shaft is rotated to enable the pressing sheet to be rotated to the position where the surface of the profiling base 1 avoids the profiling groove 10, so that the profiling groove 10 is formed for the product to be tested to be placed; after a product to be tested is placed in the profiling groove 10, the pressing cover 2 is lifted, the rotating shaft is rotated to enable the pressing piece to rotate to the position above the product to be tested and to be placed down, the product to be tested is pressed and fixed in the profiling groove 10 through the pulling force of the spring 5, and therefore the air hole of the product to be tested is in airtight contact with the suction nozzle of the suction nozzle positioning piece, and underwater air tightness testing is conducted conveniently.

It should be noted that, the implementation manner of the pressing positioning element is not limited to the above embodiment, and other pressing manners may also be adopted, for example, pressing force is provided for the product to be tested by means of the elasticity of the device itself. Specifically, as an example, the pressing positioning member may include a positioning rotating shaft fixed on the profiling base and a pressing elastic sheet sleeved on the positioning rotating shaft in a rotating manner; the pressing elastic sheet is of a downward pressing type elastic structure, can rotate around the positioning rotating shaft and can elastically press and fix the product to be tested in the profile groove through the elasticity of the pressing elastic sheet. The pressing spring plate can be an integrated spring plate structure or a combined spring plate structure combining a spring and a pressing plate.

In addition, in order to limit the rotation range of the pressing positioning element, a limiting element 3 can be arranged on the profiling base 1, and the limiting element can be a limiting pin, a limiting protrusion or other structures. The limiting pins can be arranged on the left side and the right side of the gland to limit the rotation amplitude of the two sides of the pressing positioning piece and ensure that the pressing force applied to the two sides of the pressed product is more uniform; or only one side (generally the outer side) of the gland can be arranged to limit the outward rotation amplitude of the pressing positioning piece so that the pressing positioning piece is avoided from the space above the contour groove.

Of course, it is also possible to provide a stop structure similar to a stop pin on the compression positioning element, such as a stop structure on the rotating contact surface of the gland 2 and the guide rod, or a stop structure on the contact surface of the guide rod and the circular groove.

In order to balance the pressing force of the pressing positioning pieces on the product to be tested and ensure the tightness between the air hole and the suction nozzle of the product to be tested, two sets of pressing positioning pieces can be arranged on the upper side of the profiling base 1, the two sets of pressing positioning pieces are respectively arranged on two sides of the profiling groove 10, and the product to be tested in the profiling groove 10 is pressed and fixed one by one.

In order to improve the utility model discloses a universality can be changed the profile modeling base and the different suction nozzles that are applicable to different examination of awaiting measuring products through detachable suction nozzle setting element. In particular, fig. 4 shows a schematic structural diagram of a nozzle positioning member according to an embodiment of the present invention. As shown in fig. 4, the nozzle positioning member includes a nozzle link 8 for connecting the nozzle 7 and the air tube 11, and a quick-change connector 6 disposed on the nozzle link 8, the nozzle link 8 is connected to the air tube 11 through the quick-change connector 6, and the other end of the air tube 11 is connected to an external test device.

Wherein, the nozzle connecting rod 8 can be fixed at the bottom end of the profiling base through a screw 9, and the screw 9 can be an inner hexagon screw.

Specifically, as an example, a suction nozzle positioning piece accommodating cavity may be arranged on the lower side of the profiling base 1, the suction nozzle 7, the suction nozzle connecting rod 8 and the quick-change connector 6 are all accommodated in the suction nozzle positioning piece accommodating cavity, and the suction nozzle accommodating cavity can fix the suction nozzle positioning piece on the profiling base in a better limiting manner, so as to prevent the suction nozzle positioning piece from moving in the testing process; in addition, the volume of the whole product fixing jig can be reduced.

In addition, an air pipe guide groove 11 communicated with a storage cavity of the suction nozzle positioning piece can be arranged on the lower side of the profiling base 1; the quick-change connector 6 is connected on the side wall of the suction nozzle connecting rod 8, one end, connected with the air pipe, of the quick-change connector 6 faces the air pipe guide groove 11, the air pipe is connected with the quick-change connector 6 in the air pipe guide groove 11, and the profiling base 1 is guided out through the air pipe guide groove 11. The air pipe guide groove 11 can protect the connection point of the air pipe and the quick-change connector 6 on one hand, and avoids adverse consequences such as air leakage caused by touch and the like in the underwater air tightness test process.

Fig. 5A and 5B show respectively that the fixed tool user state of airtightness test product under water according to the embodiment of the present invention. As the initial condition that fig. 5A shows, the pressfitting setting element is in the position of dodging out the profile modeling groove, is using the utility model discloses an during fixed tool of gas tightness test product under water, the pressfitting piece of pressfitting setting element is rotatory to as shown in fig. 5B, and the pressfitting pushes down the product of awaiting measuring in the top of profile modeling groove. Then the underwater air tightness test product fixing jig and the product to be tested pressed in the profiling groove are put into water together for pressing test.

According to the technical scheme, the underwater air tightness test product fixing jig provided by the utility model not only relieves the trouble of fixing products in water manually, but also can ensure sufficient inflation pressure and has no pressure leakage state; and, the structure of can dismantling, interchangeable suction nozzle setting element has also improved the utility model discloses a universality when testing different products and using, only switch profile modeling base and suction nozzle setting element can, easy operation, and the commonality is strong.

The underwater airtightness test product fixing jig according to the present invention is described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications can be made to the underwater air tightness test product fixing jig provided by the present invention without departing from the content of the present invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.

Claims

1. A fixing jig for underwater air tightness test products is characterized by comprising a profiling base, and a pressing positioning piece and a suction nozzle positioning piece which are respectively arranged on the upper side and the lower side of the profiling base; wherein the content of the first and second substances,

a hollow-out profiling groove is formed in the profiling base, and a product to be tested is fixed in the profiling groove through the pressing positioning piece in a pressing mode;

the suction nozzle of suction nozzle setting element follows the below in copying groove stretches into copying groove, the suction nozzle setting element passes through the trachea and is connected with external test equipment.

2. The underwater airtightness test product fixing jig according to claim 1, wherein the press-fit positioning member includes a press cover, a guide rod, and a spring; wherein the content of the first and second substances,

the spring is sleeved on the guide rod, and the gland is sleeved at the top end of the guide rod and can rotate by taking the guide rod as a shaft;

the guide rod is elastically fixed with the profiling base through the spring.

3. The underwater airtightness test product fixing jig according to claim 2,

the gland comprises a rotating shaft and a pressing sheet which is perpendicular to the rotating shaft.

4. The underwater airtightness test product fixing jig according to claim 1, wherein the press-fit positioning member includes a positioning rotating shaft fixed to the profiling base and a press-fit spring piece rotatably fitted over the positioning rotating shaft; the pressing elastic sheet can rotate around the positioning rotating shaft and elastically press and fix the to-be-tested product in the profiling groove.

5. The underwater airtightness test product fixing jig according to any one of claims 1 to 4, wherein a limit pin is further provided on the profiling base.

6. The underwater airtightness test product fixing jig according to any one of claims 1 to 4, wherein two sets of pressing positioning pieces are provided on the upper side of the profiling base, and the two sets of pressing positioning pieces are provided on both sides of the profiling groove, respectively.

7. The underwater air tightness test product fixing jig according to any one of claims 1 to 4, wherein the suction nozzle positioning piece further includes a suction nozzle connecting rod for connecting the suction nozzle and the air pipe, and a quick-change coupler provided on the suction nozzle connecting rod, and the suction nozzle connecting rod is connected with the air pipe through the quick-change coupler.

8. The underwater airtightness test product fixing jig according to claim 7, wherein the suction nozzle connecting rod is fixed to the profiling base by a screw.

9. The underwater air tightness test product fixing jig according to claim 7, wherein a suction nozzle positioning piece receiving cavity is provided at a lower side of the profiling base, and the suction nozzle, the suction nozzle connecting rod and the quick-change connector are received in the suction nozzle positioning piece receiving cavity.

10. The underwater air tightness test product fixing jig according to claim 9, wherein an air pipe guide groove communicated with the suction nozzle positioning piece receiving cavity is further provided at a lower side of the profiling base; the quick-change connector is connected to the side wall of the suction nozzle connecting rod, and one end of the quick-change connector, which is connected with the air pipe, faces the air pipe guide groove.