CN214748692U - Air tightness detection device - Google Patents

Abstract

The application discloses gas tightness detection device belongs to electronic equipment technical field. The device comprises: the device comprises a base, an annular limiting assembly and a cover body; the base is provided with a mounting groove and a fluid channel, a first opening at one end of the fluid channel is positioned in the mounting groove, and a second opening at the other end of the fluid channel is positioned outside the base; the annular limiting assembly is positioned in the mounting groove and is suitable for bearing a device to be detected, an annular detection space is formed between the base and the annular limiting assembly, and the fluid channel is communicated with the annular detection space; the cover body is detachably connected to the base and is suitable for fixing the device to be tested in the mounting groove. The device can realize the gas tightness detection to the gap between plastic support and the mounting in the camera decoration or the gap in the similar equipment.

Description

Air tightness detection device

Technical Field

The application relates to the technical field of electronic equipment, in particular to an air tightness detection device.

Background

At present, people usually take daily pictures or videos by using portable mobile terminals (such as mobile phones). In a portable mobile terminal, a camera is generally fixed by a camera decoration.

In the related art, the camera decoration comprises a plastic support and a fixing part, wherein the fixing part is positioned on the plastic support and is connected with the plastic support through a colloid. In the assembling process of the camera decorating part, due to dust entering between the fixing part and the plastic support, the air tightness is easy to cause to be poor, and then the dustproof and waterproof performance of the portable mobile terminal is influenced, so that the air tightness between the plastic support and the fixing part needs to be detected.

SUMMERY OF THE UTILITY MODEL

In view of this, the application provides an air tightness detection device, can realize the air tightness detection to the gap between plastic support and the mounting in the camera decoration or the gap in the similar equipment.

Specifically, the method comprises the following technical scheme:

the embodiment of the application provides an airtightness detection device, which comprises: the device comprises a base, an annular limiting assembly and a cover body;

the base is provided with a mounting groove and a fluid channel, a first opening at one end of the fluid channel is positioned in the mounting groove, and a second opening at the other end of the fluid channel is positioned outside the base;

the annular limiting assembly is positioned in the mounting groove and is suitable for bearing a device to be tested, an annular detection space is formed between the base and the annular limiting assembly, and the fluid channel is communicated with the annular detection space;

the cover body is detachably connected to the base and is suitable for fixing the device to be tested in the mounting groove.

In one possible design, the annular stop assembly includes a first stop collar and a second stop collar;

the groove bottom of the mounting groove is provided with a first annular groove and an annular bulge, and the annular bulge surrounds the outer side of the first annular groove;

the lower part of the first limiting ring is positioned in the first annular groove;

the first part of the second spacing ring is positioned on the annular bulge and protrudes towards the inner side of the annular bulge;

the first portion, the annular protrusion and the first stop collar form part of the boundary of the annular detection space.

In one possible design, the bottom of the mounting groove is also provided with a second annular groove, and the second annular groove is adjacent to the inner side wall of the mounting groove;

the annular limiting assembly further comprises a limiting seat, and the lower part of the limiting seat is positioned in the second annular groove;

the stopper seat has an edge portion protruding toward the inside of the mounting groove, the edge portion being located on a second portion of the second stopper ring, the second portion protruding toward the outside of the mounting groove.

In a possible design, the limiting seat is provided with a plurality of first through holes, the groove bottom of the second annular groove is provided with a plurality of first threaded holes corresponding to the first through holes one by one, and the screw rod of the first bolt is suitable for penetrating through the first through holes and entering the first threaded holes.

In a possible design, the surface of the first part of the second spacing ring facing the inner side of the mounting groove is provided with a plurality of positioning convex blocks arranged at intervals, and the surface of the first part of the second spacing ring away from the bottom of the mounting groove is provided with a plurality of stop blocks arranged at intervals.

In one possible design, the cover has a contact portion on a lower surface facing the base, the contact portion being located in the middle of the lower surface and protruding toward the base.

In one possible design, the device further comprises a plurality of connecting posts;

a first end of each of said attachment posts being removably attached to said cover;

the base has at least one first recess and at least one first protrusion thereon, and the second end of each connecting post is adapted to mate with one of the first recesses or one of the first protrusions.

In one possible design, the number of the connecting columns is four, and the base is provided with three first concave parts and one first convex part;

the second ends of the three connecting posts have second protrusions adapted to enter into the corresponding first recesses;

the second end of one of the connecting posts has a second recess into which the first protrusion is adapted to enter.

In a possible design, the three first concave portions and one first convex portion are located on the outer side of the mounting groove and are opposite to each other in pairs in a crossed manner, wherein a first clearance fit is formed between the two first concave portions opposite to each other and the corresponding second convex portions, a second clearance fit is formed between the first convex portions and the corresponding second concave portions, and a second clearance fit is formed between the first concave portions opposite to each other and the corresponding second convex portions, wherein a clearance formed in the second clearance fit is smaller than a clearance formed in the first clearance fit.

In one possible design, the apparatus further includes: a plurality of third bolts and a plurality of nuts;

the cover body is provided with a plurality of second through holes, the base is provided with a plurality of second fixing holes, and the third bolt is suitable for penetrating through the second through holes to enter the second fixing holes and is connected with the nut in the second fixing holes.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

when the air tightness of the gap between the plastic support and the fixing piece or the gap in the similar equipment in the camera decoration is required to be detected, the device to be detected is arranged in the installation groove with the annular limiting assembly, the device to be detected is enabled to be formed into the sealed annular detection space between the base and the annular limiting assembly, the gap to be detected of the device to be detected is communicated with the annular detection space, the device to be detected is fixed in the installation groove by the cover body, the position of the device to be detected is ensured to be stable and uniform in pressure, then, fluid is injected into the fluid channel, the air tightness of the gap to be detected of the device to be detected is determined according to the diffusion condition of the injected fluid, and the air tightness detection of the gap between the plastic support and the fixing piece in the camera decoration or the gap in the similar equipment is realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an air-tightness detection device provided in an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a schematic structural diagram of a base in an air-tightness detection device according to an embodiment of the present disclosure;

fig. 4 is a cross-sectional view of an annular position-limiting component of an air-tightness testing device provided in an embodiment of the present application, which is located in a mounting groove of a base;

fig. 5 is a schematic structural diagram of a cover in an air-tightness detecting device according to an embodiment of the present disclosure;

fig. 6 is a cross-sectional view of an air-tightness detecting device provided in an embodiment of the present application in use.

The reference numerals in the drawings denote:

1-base, 11-mounting groove, 12-fluid channel, 121-first opening, 122-second opening, 13-first annular groove, 14-annular projection, 15-second annular groove, 16-first threaded hole, 17-first recess, 18-first projection, 19-second fixing hole,

2-an annular limiting component, 21-a first limiting ring, 22-a second limiting ring, 221-a first part, 222-a second part, 223-a stop, 224-a positioning lug, 23-a limiting seat, 231-an edge part, 232-a first through hole,

3-cover, 31-contact, 32-first fixing hole, 33-second through hole,

4-the device under test, 41-the gap under test,

5-an annular detection space, wherein the annular detection space,

6-connecting column, 61-second convex part, 62-second threaded hole,

7-a third bolt, wherein the third bolt is provided with a screw hole,

8-a nut, wherein the nut is provided with a screw thread,

9-the first gap is set to be,

10-second gap.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

At present, the camera head decorating part generally comprises a plastic bracket and a fixing part. To the equipment of camera decoration, generally glue or paste the gum with the plastic support point earlier, in arriving positioning jig with the plastic support moving member again, then laminate the mounting manually to the plastic support on, move the camera decoration in the pressfitting machine and carry out glue and spread or the gum activation, assemble the center with the camera decoration at last. Because the hot melt adhesive has mobility before the solidification for the gap between the mounting of camera decoration and the plastic support is easy to be taken the point at personnel and is glued the back, and the gum is from entering dirt after the type paper tears, leads to the gas tightness poor, consequently needs to detect the gas tightness between plastic support and the mounting.

In order to realize the air tightness detection of a gap between a plastic support and a fixing piece in a camera decoration piece or a gap in similar equipment, the embodiment of the application provides an air tightness detection device, the schematic structural diagram of which is shown in fig. 1, and the enlarged partial structure of fig. 1 is shown in fig. 2.

Referring to fig. 1 and 2, the airtightness detecting apparatus includes: base 1, annular spacing subassembly 2 and lid 3.

Wherein, the base 1 has a mounting groove 11 and a fluid channel 12, a first opening 121 at one end of the fluid channel 12 is located in the mounting groove 11, and a second opening 122 at the other end is located outside the base 1.

The annular limiting component 2 is positioned in the mounting groove 11 and is suitable for receiving a device to be tested 4, an annular detection space 5 is formed between the base 1 and the annular limiting component 2, and the fluid channel 12 is communicated with the annular detection space 5. So set up, put into mounting groove 11 at device under test 4 after, can form sealed annular detection space 5 between device under test 4, base 1 and the spacing subassembly 2 of annular, the gap 41 that awaits measuring of device under test 4 communicates with annular detection space 5 for fluid passes through fluid passage 12 after, can flow into annular detection space 5, and then enters into the gap 41 that awaits measuring of device under test 4. Here, when the device under test 4 is a camera decoration, the gap 41 may be a gap between a plastic holder and a fixing member.

The cover 3 is detachably attached to the base 1 and adapted to fix the device under test 4 in the mounting groove 11.

When the air tightness of the gap between the plastic support and the fixing piece in the camera decoration or the gap in the similar equipment needs to be detected, the device 4 to be detected is arranged in the installation groove 11 with the annular limiting component 2, the device 4 to be detected and the annular detection space 5 formed between the base 1 and the annular limiting component 2 are enabled to be communicated, the device 4 to be detected is fixed in the installation groove 11 through the cover body 3, the position of the device 4 to be detected is stable and uniform in pressure, then the fluid is injected into the fluid channel 12, the air tightness of the gap 41 to be detected of the device 4 to be detected is determined according to the diffusion condition of the injected fluid, and the air tightness detection of the gap between the plastic support and the fixing piece in the camera decoration or the gap in the similar equipment is achieved.

Here, the fluid injected into the fluid channel 12 may be soap water, red ink, or the like. If the air tightness of the gap 41 to be detected of the device 4 to be detected is poor, namely a leakage point exists, the leakage point can be accurately positioned by observing the bubbling condition after injecting the soapy water and filling the annular detection space 5 with the soapy water; after the red ink is injected, the leakage point of the gap 41 to be measured can be accurately positioned based on the diffusion path of the red ink after the detection is completed and the device 4 to be measured is detached.

In addition, the airtightness detection device is used for carrying out airtightness detection on the plastic support and the fixing piece in the camera decorating part, so that airtightness parameters obtained by detection can be compared with production line test results, whether the production test results meet requirements or not is verified, and the test parameters can be reversely deduced. Meanwhile, the air tightness detection device is small in size and convenient to carry.

The following describes the structure of the air-tightness detection device provided in the embodiments of the present application in more detail.

In one possible design, referring to fig. 4, the annular stop assembly 2 includes a first stop collar 21 and a second stop collar 22.

Wherein, the groove bottom of the mounting groove 11 is provided with a first annular groove 13 and an annular bulge 14, and the annular bulge 14 surrounds the outer side of the first annular groove 13 and is integrally formed with the base 1.

The lower part of the first limiting ring 21 is positioned in the first annular groove 13, and the first limiting ring 21 can be fixed through the first annular groove 13.

The first portion 221 of the second stop collar 22 is located on the annular projection 14 and protrudes towards the inside of the annular projection 14, and the first portion 221, the annular projection 14 and the first stop collar 21 may form part of the boundary of the annular detection space 5.

When the device 4 to be tested is not positioned in the mounting groove 11, a part of the boundary of the annular detection space 5 formed by the first part 221, the annular bulge 14 and the first spacing ring 21 forms an open annular detection space 5; after the device 4 to be tested is located in the mounting groove 11, the first portion 221, the annular protrusion 14, the first stop collar 21 and the device 4 to be tested form a sealed annular detection space 5.

In one possible design, see fig. 3, the bottom of the installation groove 11 also has a second annular groove 15, the second annular groove 15 being contiguous with the inner side wall of the installation groove 11; the annular limiting component 2 further comprises a limiting seat 23, the lower portion of the limiting seat 23 is located in the second annular groove 15, and the limiting seat 23 can be fixed by the second annular groove 15.

Referring to fig. 4, the stopper seat 23 has an edge portion 231 protruding toward the inside of the mounting groove 11, the edge portion 231 is located on the second portion 222 of the second stopper ring 22, and the second portion 222 protrudes toward the outside of the mounting groove 11. Since the edge portion 231 is located on the second portion 222 of the second stop collar 22, the position of the second stop collar 22 can be kept unchanged under the stop action of the stop block 23.

In a possible design, referring to fig. 4, the limiting seat 23 has a plurality of first through holes 232, referring to fig. 3, the groove bottom of the second annular groove 15 has a plurality of first threaded holes 16 corresponding to the plurality of first through holes 232 one to one, and the screw of the first bolt is adapted to pass through the first through holes 232 and enter the first threaded holes 16, so that the limiting seat 23 can be fixed on the base 1.

Optionally, referring to fig. 3 and 4, the limiting seat may be a square ring structure, and the number of the first through holes 232 may be four, and the first through holes are uniformly distributed at four corners of the limiting seat 23.

In one possible design, referring to fig. 4, the surface of the first portion 221 of the second retainer 22 facing the inside of the mounting groove 11 has a plurality of positioning protrusions 224 spaced apart, and the surface of the groove bottom facing away from the mounting groove 11 has a plurality of stoppers 223 spaced apart.

So set up, utilize location lug 224 can realize the location to device under test 4, utilize a plurality of dogs 223 can play the effect of barricade, realize spacing to device under test 4.

In one possible design, see fig. 5, the cover 3 has a contact portion 31 on its lower surface facing the base 1, the contact portion 31 being located in the middle of the lower surface and protruding towards the base 1 and being adapted to contact the device 4 to be tested to achieve the fixing of the device 4 to be tested in the mounting slot 11.

In one possible design, see fig. 1, the device further comprises a plurality of connecting posts 6.

Wherein a first end of each connecting post 6 is detachably connected to the cover 3; the base 1 has at least one first concave portion 17 and at least one first convex portion 18, and the second end of each connecting column 6 is adapted to cooperate with one first concave portion 17 or one first convex portion 18, so that a plurality of connecting columns 6 are located between the cover 3 and the base 1, so as to define the positions of the cover 3 and the base 1, and ensure a smooth positional relationship between the cover 3 and the base 1.

In a possible design, see fig. 1, the number of the plurality of connection posts 6 is four, and the base 1 has three first recesses 17 and one first protrusion 18.

Wherein the second ends of the three connecting posts 6 have second protrusions 61, the second protrusions 61 being adapted to enter into the corresponding first recesses 17; the second end of one connecting post 6 has a second recess into which the first protrusion 18 is adapted to enter.

So set up, utilize four spliced poles 6, can guarantee the even pressurized of device under test 4, the leak point is confirmed to the different visual angles of being convenient for simultaneously, the accurate discovery leak point position of being convenient for. In addition, utilize unsmooth complex mode, can realize the cooperation of being connected between the second end of each spliced pole 6 and base 1.

In one possible design, referring to fig. 1, three first recesses 17 and one first protrusion 18 are located outside the mounting groove 11 and are opposite to each other in pairs, wherein a first clearance fit is formed between each corresponding second protrusion 61 of the two opposite first recesses 17, a second clearance fit is formed between each corresponding second protrusion 18 and the corresponding second recess, and a second clearance fit is formed between each corresponding first recess 17 and the corresponding second protrusion 61 of the first protrusion 18.

Wherein, referring to fig. 6, clearance fit refers to fit with a clearance, a second clearance 10 formed in the second clearance fit being smaller than a first clearance 9 formed in the first clearance fit.

In the embodiment of the application, the two cross-opposite connecting columns 6 in the first clearance fit can also be called limiting columns, when the second convex parts 61 of the limiting columns enter the corresponding first concave parts 17, the second ends of the limiting columns can abut against the base 1 outside the first concave parts 17, so that the adjustment of the flatness in the vertical direction is realized, and the limiting effect is achieved; the two cross-opposing connection posts 6 in the second clearance fit can also be called as guide posts, and after the second convex part 61 of the guide post and the first convex part 18 on the base 1 respectively enter the corresponding first concave part 17 and second concave part, the adjustment of the flatness in the horizontal direction can be realized through the close fit between the second concave part 61 and the first concave part 17 and between the first convex part 18 and the second concave part, so as to play a role in guiding. By utilizing the matching of the limiting columns and the guide columns, the stress of the device 4 to be tested can be uniform.

For the two guide posts, the first convex part 18 and the corresponding second concave part and the concave-convex matching between the first convex part 18 and the corresponding second convex part 61 can ensure the matching of the base 1 and the cover body 3, reduce the abrasion and prolong the service life.

In a possible design, referring to fig. 1, the cover 3 has a plurality of first fixing holes 32, the first end of each connecting column 6 has a second threaded hole 62, and the screw of the second bolt is adapted to pass through the first fixing hole 32 and enter the second threaded hole 62, so that the first end of each connecting column 6 is detachably connected with the cover 3 through a threaded connection.

In one possible design, referring to fig. 1, the apparatus further comprises: a plurality of third bolts 7 and a plurality of nuts 8.

The cover body 3 is provided with a plurality of second through holes 33, the base 1 is provided with a plurality of second fixing holes 19, and the third bolts 7 are suitable for penetrating through the second through holes 33 to enter the second fixing holes 19 and are connected with the nuts 8 positioned in the second fixing holes 19, so that the cover body 3 can be detachably connected to the base 1, the disassembly and the assembly are convenient, and the leakage point can be observed at the maximum visual angle.

In a possible example, when the airtightness of the gap between the plastic bracket and the fixing member in the camera decoration member needs to be detected, the camera decoration member is placed in the mounting groove 11 with the annular limiting component 2, so that the first portion 221, the annular protrusion 14, the sealed annular detection space 5 is formed between the first limiting ring 21 and the camera decoration member, the gap between the plastic bracket and the fixing member is communicated with the annular detection space 5, the camera decoration member is fixed in the mounting groove 11 by using the cover body 3, the position stability and the uniform pressure of the camera decoration member are ensured, then the red ink is injected into the fluid channel 12, and the airtightness of the gap between the plastic bracket and the fixing member is determined according to the diffusion path of the injected red ink.

In this application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the present application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. An air-tightness detection device, characterized in that it comprises: the device comprises a base (1), an annular limiting component (2) and a cover body (3);

the base (1) is provided with a mounting groove (11) and a fluid channel (12), a first opening (121) at one end of the fluid channel (12) is positioned in the mounting groove (11), and a second opening (122) at the other end of the fluid channel is positioned outside the base (1);

the annular limiting component (2) is positioned in the mounting groove (11) and is suitable for bearing a device to be tested (4), an annular detection space (5) is formed between the base (1) and the annular limiting component (2), and the fluid channel (12) is communicated with the annular detection space (5);

the cover body (3) is detachably connected to the base (1) and is suitable for fixing the device to be tested (4) in the mounting groove (11).

2. The tightness detection device according to claim 1, characterized in that said annular stop assembly (2) comprises a first stop collar (21) and a second stop collar (22);

the groove bottom of the mounting groove (11) is provided with a first annular groove (13) and an annular protrusion (14), and the annular protrusion (14) surrounds the outer side of the first annular groove (13);

the lower part of the first limiting ring (21) is positioned in the first annular groove (13);

the first part (221) of the second stop collar (22) is located on the annular projection (14) and protrudes towards the inside of the annular projection (14);

the first portion (221), the annular projection (14) and the first stop collar (21) form part of the boundary of the annular detection space (5).

3. The tightness detection device according to claim 2, characterized in that the groove bottom of the mounting groove (11) is further provided with a second annular groove (15), the second annular groove (15) is adjacent to the inner side wall of the mounting groove (11);

the annular limiting assembly (2) further comprises a limiting seat (23), and the lower part of the limiting seat (23) is positioned in the second annular groove (15);

the limiting seat (23) is provided with an edge part (231) protruding towards the inner side of the mounting groove (11), the edge part (231) is positioned on a second part (222) of the second limiting ring (22), and the second part (222) protrudes towards the outer side of the mounting groove (11).

4. The airtightness detection apparatus according to claim 3, wherein the stopper seat (23) has a plurality of first through holes (232), the groove bottom of the second annular groove (15) has a plurality of first threaded holes (16) corresponding to the plurality of first through holes (232), and the screw of the first bolt is adapted to pass through the first through hole (232) and enter the first threaded hole (16).

5. The airtightness detection apparatus according to claim 2, wherein the surface of the first portion (221) of the second retainer ring (22) facing the inside of the mounting groove (11) has a plurality of positioning projections (224) arranged at intervals, and the surface of the groove bottom facing away from the mounting groove (11) has a plurality of stoppers (223) arranged at intervals.

6. The tightness detection device according to claim 1, characterized in that said cover (3) has a contact portion (31) on the lower surface facing said base (1), said contact portion (31) being located in the middle of said lower surface and protruding towards said base (1).

7. The tightness detection device according to claim 1, characterized in that it further comprises a plurality of connection posts (6);

the first end of each connecting column (6) is detachably connected to the cover body (3);

the base (1) is provided with at least one first concave part (17) and at least one first convex part (18), and the second end of each connecting column (6) is suitable for being matched with one first concave part (17) or one first convex part (18).

8. The tightness detection device according to claim 7, characterized in that said plurality of connection posts (6) is four in number, said base (1) having three first recesses (17) and one first protrusion (18);

the second ends of the three connecting posts (6) have second protrusions (61), said second protrusions (61) being adapted to enter into corresponding first recesses (17);

the second end of one of the connecting posts (6) has a second recess into which the first protrusion (18) is adapted to enter.

9. The airtightness detection apparatus according to claim 8, wherein the three first recesses (17) and the one first protrusion (18) are located outside the mounting groove (11) and are arranged in pairs in a crossed manner, wherein a first clearance fit is provided between two first recesses (17) in a crossed manner and the corresponding second protrusions (61), a second clearance fit is provided between the first protrusions (18) and the corresponding second recesses, and a second clearance fit is provided between the first recesses (17) in a crossed manner and the corresponding second protrusions (61) of the first protrusions (18), wherein a second clearance (10) formed in the second clearance fit is smaller than a first clearance (9) formed in the first clearance fit.

10. The airtightness detection apparatus according to claim 1, further comprising: a plurality of third bolts (7) and a plurality of nuts (8);

the cover body (3) is provided with a plurality of second through holes (33), the base (1) is provided with a plurality of second fixing holes (19), and the third bolts (7) are suitable for penetrating through the second through holes (33) to enter the second fixing holes (19) and are connected with the nuts (8) positioned in the second fixing holes (19).

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