CN220794539U

CN220794539U - Waterproof test fixture

Info

Publication number: CN220794539U
Application number: CN202420493429.8U
Authority: CN
Inventors: 秦英杰; 丁杰培
Original assignee: Gettop Acoustic Co Ltd
Current assignee: Gettop Acoustic Co Ltd
Priority date: 2024-03-14
Filing date: 2024-03-14
Publication date: 2024-04-16
Anticipated expiration: 2034-03-14

Abstract

The utility model relates to a waterproof test fixture, which belongs to the technical field of test fixtures and comprises a clamp and a sealing member, wherein a clamping groove is formed in the inner side of the clamp, the outer edge of the sealing member is clamped in the clamping groove, and a locking member is arranged on the clamp.

Description

Waterproof test fixture

Technical Field

The utility model relates to a test jig, in particular to a waterproof test jig, and belongs to the technical field of test jigs.

Background

Along with the development of technology and the increasing demands of people, electronic devices such as speakers and the like gradually start to require waterproofing, and the electronic devices also need to periodically detect the waterproofing property, and generally, as shown in fig. 1 and 2, a waterproof test fixture is adopted for detecting the waterproofing property of the speakers, and the current waterproof test fixture is composed of an upper shell 12, a lower shell 13, an O-ring 23 and a locking screw 6, a product 25 to be tested and the upper shell 12 are sealed to form a front cavity 20, the upper shell 12, the lower shell 13 and the product 25 to be tested are sealed to form a rear cavity 16 through the O-ring 23, and the upper shell 12 and the lower shell 13 are locked through a plurality of locking screws 6. The waterproof test fixture has the following problems: ① The number of the locking screws 6 on the jig is large, and a plurality of locking screws 6 are required to be disassembled and assembled each time, so that the steps are complicated, and the time and the labor are consumed; ② In order to fully seal the upper shell 12 and the lower shell 13, the locking screw 6 is generally locked particularly tightly, and the locking screw 6 is small and easy to slide after multiple uses; ③ The screw head is easy to damage after long-time use, so that the screw can not be unscrewed. Therefore, the service life and the operability of the waterproof test fixture are the problems to be solved in the prior art.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides the waterproof test fixture which is simple to operate and high in efficiency, the upper shell and the lower shell are extruded and sealed through the clamp, the traditional locking screw is removed, the problem of screw sliding or nut damage is effectively avoided, and the service life of the waterproof test fixture is prolonged.

The aim of the utility model is achieved by the following technical measures: the utility model provides a waterproof test tool, includes clamp and sealing member, and the clamp inboard is equipped with the draw-in groove, and sealing member's outer fringe card is equipped with the locking member in the draw-in groove on the clamp.

As a further improvement of the above technical scheme:

The clamp comprises left fastener, right fastener and middle fastener, and middle fastener sets up between left fastener and right fastener, articulates between the multistage fastener, and the tip of left fastener is equipped with left extension, and the tip of right fastener is equipped with right extension, and the locking component sets up between left extension and right extension.

The locking component comprises a fastening screw, the fastening screw is in threaded connection with the left extending part, a threaded hole is formed in the right extending part, the fastening screw is in threaded connection with the right extending part, and the outer end part of the fastening screw is fixedly connected with a handle.

The left clamping piece and the right clamping piece are identical in structure and symmetrically arranged, the left clamping piece, the right clamping piece and the middle clamping piece are connected together to form a circular shape, the inner sides of the left clamping piece, the right clamping piece and the middle clamping piece are respectively provided with an arc-shaped clamping groove, the clamping grooves arranged on the inner sides of the left clamping piece, the right clamping piece and the middle clamping piece are connected together to form a circular shape, and the outer edge of the sealing component is clamped in the clamping grooves on the inner sides of the left clamping piece, the right clamping piece and the middle clamping piece.

The sealing component comprises an upper shell and a lower shell, the upper shell and the lower shell are buckled, a positioning block is arranged on the inner side of the upper shell, a positioning groove is formed on the inner side of the lower shell, and the positioning block is matched with the positioning groove.

A rear cavity is arranged in the lower shell, a bulge is arranged at the center of the rear cavity, and foam is adhered to the bulge.

An air hole is formed between the rear cavity and the outer side of the lower shell, and a waterproof and breathable film is arranged at the position, located at the air hole, of the outer side of the lower shell.

The upper shell is provided with a groove, a front cavity is further arranged in the upper shell, and the front cavity is communicated with the groove.

An O-shaped ring is arranged between the upper shell and the lower shell, and an annular groove capable of accommodating the O-shaped ring is arranged on the upper shell.

The outer side structures of the upper shell and the lower shell are the same, and the outer sides of the upper shell and the lower shell are provided with chamfer angles which are not more than 45 degrees.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the advantages that:

1. The upper shell and the lower shell are extruded and sealed through the clamp, the traditional locking screw is removed, the problem that the screw slides or the screw cap is damaged is effectively avoided, and the service life of the waterproof test fixture is prolonged.

2. The operation is simple and the efficiency is high.

3. The universality is strong, different upper shells and lower shells are used for products to be tested of different models, and the clamp is universal.

The utility model is further described below with reference to the drawings and the detailed description.

Drawings

FIG. 1 is a schematic diagram of a waterproof test fixture in a three-dimensional structure according to the background art of the utility model;

FIG. 2 is a schematic cross-sectional view of a waterproof test fixture according to the background of the utility model;

Fig. 3 is a schematic perspective view of a waterproof test fixture according to an embodiment of the present utility model;

fig. 4 is a front view of a waterproof test fixture according to an embodiment of the present utility model;

FIG. 5 is a rear view of a waterproof test fixture according to an embodiment of the present utility model;

fig. 6 is a bottom view of a waterproof test fixture according to an embodiment of the utility model;

FIG. 7 is a schematic cross-sectional view of the structure of FIG. 4 in the direction A-A;

Fig. 8 is a schematic structural diagram of a waterproof test fixture in an embodiment of the present utility model.

In the figure, 1-clamp, 2-sealing component, 3-left clamping piece, 4-right clamping piece, 5-middle clamping piece, 6-locking screw, 7-clamping groove, 8-left extending part, 9-right extending part, 10-fastening screw, 11-handle, 12-upper shell, 13-lower shell, 14-positioning block, 15-positioning groove, 16-back cavity, 17-bulge, 18-foam, 19-groove, 20-front cavity, 21-vent hole, 22-waterproof ventilated membrane, 23-O-shaped ring, 24-annular groove and 25-product to be tested.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Examples

As shown in fig. 3-8, a waterproof test fixture comprises a clamp 1 and a sealing member 2, wherein a clamping groove is formed in the inner side of the clamp 1, the outer edge of the sealing member 2 is clamped in the clamping groove, a locking member is arranged on the clamp 1, and the sealing member 2 is locked in the clamp 1 through the locking member.

The clamp 1 comprises a left clamping piece 3, a right clamping piece 4 and a middle clamping piece 5, wherein the middle clamping piece 5 is arranged between the left clamping piece 3 and the right clamping piece 4, a plurality of sections of clamping pieces are hinged through screws or rivets, the left clamping piece 3 and the right clamping piece 4 are identical in structure and symmetrically arranged, the left clamping piece 3, the right clamping piece 4 and the middle clamping piece 5 are connected together to form a circular shape, arc-shaped clamping grooves 7 are respectively formed in the inner sides of the left clamping piece 3, the right clamping piece 4 and the middle clamping piece 5, the clamping grooves 7 arranged in the inner sides of the left clamping piece 3, the right clamping piece 4 and the middle clamping piece 5 are connected together to form a circular shape, and the outer edge of the sealing component 2 is clamped in the clamping grooves 7 in the inner sides of the left clamping piece 3, the right clamping piece 4 and the middle clamping piece 5.

The tip of left fastener 3 is equipped with left extension 8, the tip of right fastener 4 is equipped with right extension 9, left extension 8 and right extension 9 structure are the same and the symmetry sets up, the locking component sets up between left extension 8 and right extension 9, the locking component includes fastening screw 10, fastening screw 10 and left extension 8 threaded connection, also be equipped with the screw hole on the right extension 9, fastening screw 10 and right extension 9 threaded connection, fastening screw 10's outer tip fixedly connected with handle 11, realize locking or loosening of clamp 1 through twist grip 11.

The sealing component 2 comprises an upper shell 12 and a lower shell 13, wherein the upper shell 12 and the lower shell 13 are buckled, a positioning block 14 is arranged on the inner side of the upper shell 12, a positioning groove 15 is arranged on the inner side of the lower shell 13, the positioning block 14 is matched with the positioning groove 15, the upper shell 12 and the lower shell 13 are buckled together through the positioning block 14 and the positioning groove 15, the outer side structures of the upper shell 12 and the lower shell 13 are identical, the outer sides of the upper shell 12 and the lower shell 13 are provided with chamfer angles which are not more than 45 degrees, and when the upper shell 12 and the lower shell 13 are subjected to extrusion force of the clamp 1, Z-direction stress can be ensured, so that the upper shell 12 and the lower shell 13 are better sealed, and smooth locking of the clamp 1 can be ensured.

The lower shell 13 is internally provided with the rear cavity 16, the central part of the rear cavity 16 is provided with the bulge 17, foam 18 is stuck on the bulge 17, a product 25 to be tested is placed on the foam 18, tolerance on the height of the product 25 to be tested is made up by compressing the foam 18, water leakage caused by backward movement of the product 25 to be tested in the waterproof test process is prevented, the upper shell 12 is provided with the groove 19 which can accommodate the product 25 to be tested, the upper shell 12 is internally provided with the front cavity 20, the front cavity 20 is communicated with the groove 19, the air holes 21 are arranged between the rear cavity 16 and the outer side of the lower shell 13, the outer side of the lower shell 13 is provided with a waterproof and breathable film 22 at the positions of the air holes 21, and the pressures of the front cavity 20 and the rear cavity 16 are balanced during waterproof test.

An O-shaped ring 23 is arranged between the upper shell 12 and the lower shell 13, an annular groove 24 capable of accommodating the O-shaped ring 23 is arranged on the upper shell 12, the depth of the annular groove 24 is generally about 2/3 of the line diameter of the O-shaped ring 23, the inner diameter of the annular groove 24 is about 0.2mm larger than the single side of the inner diameter of the O-shaped ring 23, the O-shaped ring 23 is fastened in the annular groove 24, the O-shaped ring 23 is prevented from falling off, the upper shell 12 and the lower shell 13 are sealed through the extrusion of the O-shaped ring 23, and a rear cavity 16 is formed between the upper shell 12 and a product 25 to be tested.

When the clamp 1 is used, firstly, the clamp 1 is opened, after a product 25 to be tested is placed in the upper shell 12, the upper shell 12 and the lower shell 13 are assembled and placed in the clamp 1, the tightness of the fastening screw 10 is adjusted through the rotary handle 11, so that the extrusion force of the clamp 1 to the upper shell 12 and the lower shell 13 is controlled, at the moment, the upper shell 12 and the lower shell 13 are compacted and sealed in the clamp 1, and the O-shaped ring 23 is compressed to realize the sealing of the upper shell 12 and the lower shell 13. Wherein one or more of the products 25 to be tested may be provided.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A waterproof test fixture, its characterized in that: the sealing device comprises a clamp (1) and a sealing member (2), wherein a clamping groove is formed in the inner side of the clamp (1), the outer edge of the sealing member (2) is clamped in the clamping groove, and a locking member is arranged on the clamp (1).

2. The waterproof test fixture of claim 1, wherein: the clamp (1) comprises a left clamping piece (3), a right clamping piece (4) and a middle clamping piece (5), wherein the middle clamping piece (5) is arranged between the left clamping piece (3) and the right clamping piece (4), the multiple sections of clamping pieces are hinged, a left extending part (8) is arranged at the end part of the left clamping piece (3), a right extending part (9) is arranged at the end part of the right clamping piece (4), and a locking component is arranged between the left extending part (8) and the right extending part (9).

3. The waterproof test fixture of claim 2, wherein: the locking component comprises a fastening screw (10), the fastening screw (10) is in threaded connection with the left extending part (8), a threaded hole is formed in the right extending part (9), the fastening screw (10) is in threaded connection with the right extending part (9), and a handle (11) is fixedly connected to the outer end part of the fastening screw (10).

4. A waterproof test fixture according to claim 3, wherein: the left clamping piece (3) and the right clamping piece (4) are identical in structure and symmetrically arranged, the left clamping piece (3), the right clamping piece (4) and the middle clamping piece (5) are connected together to form a circular shape, arc-shaped clamping grooves (7) are formed in the inner sides of the left clamping piece (3), the right clamping piece (4) and the middle clamping piece (5) respectively, the clamping grooves (7) formed in the inner sides of the left clamping piece (3), the right clamping piece (4) and the middle clamping piece (5) are connected together to form a circular shape, and the outer edge of the sealing component (2) is clamped in the clamping grooves (7) in the inner sides of the left clamping piece (3), the right clamping piece (4) and the middle clamping piece (5).

5. The waterproof test fixture of claim 1, wherein: the sealing component (2) comprises an upper shell (12) and a lower shell (13), the upper shell (12) and the lower shell (13) are buckled, a positioning block (14) is arranged on the inner side of the upper shell (12), a positioning groove (15) is formed on the inner side of the lower shell (13), and the positioning block (14) is matched with the positioning groove (15).

6. The waterproof test fixture of claim 5, wherein: a rear cavity (16) is arranged in the lower shell (13), a bulge (17) is arranged at the center of the rear cavity (16), and foam (18) is adhered to the bulge (17).

7. The waterproof test fixture of claim 6, wherein: an air hole (21) is formed between the rear cavity (16) and the outer side of the lower shell (13), and a waterproof and breathable film (22) is arranged at the position, located at the air hole (21), of the outer side of the lower shell (13).

8. The waterproof test fixture of claim 5, wherein: the upper shell (12) is provided with a groove (19), the upper shell (12) is internally provided with a front cavity (20), and the front cavity (20) is communicated with the groove (19).

9. The waterproof test fixture of claim 5, wherein: an O-shaped ring (23) is arranged between the upper shell (12) and the lower shell (13), and an annular groove (24) capable of accommodating the O-shaped ring (23) is arranged on the upper shell (12).

10. The waterproof test fixture of claim 5, wherein: the outer side structures of the upper shell (12) and the lower shell (13) are the same, the outer sides of the upper shell (12) and the lower shell (13) are provided with chamfer angles, and the chamfer angles are not more than 45 degrees.