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CN201057530Y - Remote test device - Google Patents

Remote test device Download PDF

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Publication number
CN201057530Y
CN201057530Y CNU2007200045968U CN200720004596U CN201057530Y CN 201057530 Y CN201057530 Y CN 201057530Y CN U2007200045968 U CNU2007200045968 U CN U2007200045968U CN 200720004596 U CN200720004596 U CN 200720004596U CN 201057530 Y CN201057530 Y CN 201057530Y
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CN
China
Prior art keywords
sleeve
inspection device
remote inspection
cable
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNU2007200045968U
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Chinese (zh)
Inventor
艾尔弗雷德·A.·皮斯
阿尔·伯恩雷恩
泰伊·纽曼
保罗·J.·埃克霍夫
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Perceptron Inc
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Perceptron Inc
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Abstract

The utility model provides a remote checking device used for checking an invisible position. The device commonly comprises an imager shell body arranged at one end corresponding to a modularization flexible cable and a display shell body. An imaging device is embedded in the cylindrical imager shell body to lead the imaging device to be capable of catching images in an observation region close to the distant end of the flexible cable. The display shell body is connected to the other end of the flexible cable, which leads users to hold the device. A display device is supported by the display shell body, receives video signals from the imaging device and transfers the video signals into video images.

Description

Remote inspection device
Technical field
Present invention relates in general to borescope and videoscope.
Background technology
Be used to check that the borescope of invisible position and common making of videoscope are used for application-specific.For example, some borescopes are made and are used for the Plumber and check pipeline and trench drain.Similarly, the borescope of other type is made and is used for the interior compartment that the mechanician checks the machine of repairing.Special shape that is associated with these application and function make the installation cost of these types raise.Lack the multifunctional examining device simple, that cost is low and the ordinary people can buy on the market.
The summary of this part only provides background information related to the present invention, can not constitute prior art.
Summary of the invention
The invention provides a kind of remote inspection device that is used to check invisible position.This device generally includes imager housing and the display housing that is arranged on the modularization flexible cable opposite end.Imaging device is embedded in this end of cylindric imager housing, so that imaging device can be caught the image near the viewing area of flexible cable far-end.Display housing is connected to the other end of flexible cable, and be configured to can be by user's grasping of this device.The display device that is supported by display housing receives the vision signal that comes from imaging device, and converts this vision signal to video image.
Beneficial effect: a kind of simple, cost is low and the ordinary people can buy multifunctional examining device can be provided, and make this multifunctional examining apparatus moduleization.
Further range of application will become obvious by the description of this paper.Should understand, describe and specific embodiment only for purpose of explanation, rather than be intended to limit the scope of the invention.
Description of drawings
Fig. 1 is the three-dimensional view of representative testing fixture;
Fig. 2 A and 2B are the decomposition views of the representative imager housing of this testing fixture;
Fig. 2 C illustrates to be used for the synoptic diagram of direct light by the representative pipeline transfer structure of imager housing;
Fig. 3 is the cut-open view with imager housing of salable, user's adjustable focal length mechanism;
Fig. 4 is the cross-sectional schematic of imager housing;
Fig. 5 A-5C is the three-dimensional view that is used for the representative web member of imager housing;
Fig. 6 A is the three-dimensional view that the engaging zones of representative web member on the imager housing is shown;
Fig. 6 B illustrates the three-dimensional view that is connected to the representative web member on the imager housing;
Fig. 6 C illustrates the three-dimensional view that is used for web member is connected to the another kind of connected mode on the imager housing;
Fig. 7 is the cut-open view of representative display housing;
Fig. 8 A and 8B illustrate the partial sectional view that is used for display housing is connected to the associating device of flexible cable;
Fig. 8 C and 8D illustrate the partial sectional view that is used for flexible cable is connected to the middle associating device of display housing;
But Fig. 9 is the process flow diagram that constitutes the functional unit of testing fixture;
Figure 10 is the three-dimensional view that the modular design that is used for testing fixture is shown;
Figure 11 A and 11B are the cut-open views that can be used for the separable associating device in the testing fixture;
Figure 12 is the cut-open view of second connector that can use with testing fixture;
Figure 13 is the three-dimensional view of another representative separable associating device;
Figure 14 A-14F is the cut-open view that separable associating device assembling process is shown;
Figure 15 is the three-dimensional view of separable associating device;
Figure 16 A-16B is the three-dimensional view of another representative separable associating device part;
Figure 17 is the cut-open view that the separable associating device part of Figure 16 B is shown;
Accompanying drawing described herein is not intended in office where face limits the scope of the invention only for purpose of explanation.
Embodiment
Fig. 1 illustrates a kind of representative embodiment of remote inspection device 10.This remote-control device 10 totally comprises three critical pieces: display housing 12, imager housing 14 and make display housing 12 be connected to the flexible cable 16 of imager housing 14.It is flexible or become curved when this flexible cable 16 for example is pushed into invisible area such as pipeline and wall.In representative embodiment, this flexible cable 16 has the cylindric conduit of rib for external diameter in the 1cm scope.This conduit can be made by metal, plastics or compound substance.According to application, greater or lesser diameter also is fit to.Similarly, the present invention can consider that also other is used for the suitable structure of flexible cable 16.
Imager housing 14 is connected to the far-end of flexible cable 16.In this representative embodiment, imager 14 is essentially cylindric with flexible cable 16 centrally aligneds.But, should imagine that imager housing 14 can adopt other shape.Under any circumstance, the external diameter of cylindrical imager housing 14 is preferably made the external diameter that size is equal to or greater than flexible cable 16 substantially.
With reference to figure 2A, imager housing 14 structures come ccontaining imaging device 22 and one or more light source 24.Imaging device 22 embed the imager housings outward in.Particularly, imaging device 22 is connected to an end of surface-mounted integrated circuit 21, and this end of surface-mounted integrated circuit 21 slips in the inner chamber of imager housing 14 successively.This imaging device 22 can be operated the viewing area outward of catching near imager housing 14.Imaging device 22 can use charge-coupled device (CCD) (CCD), realize based on the imaging device of the imageing sensor of CMOS, other type that digital sensor maybe can buy.View data focuses on the imaging device 22 by the lens subassembly 23 with imaging device 22 adjacent settings.
In representative embodiment, imaging device 22 and lens subassembly 23 provide fixing focal length at about four to the ten inches places of distance imager shell ends.But should imagine testing fixture 10 can provide adjustable focal length.For example, the user's focus adjusting mechanism 30 shown in Fig. 3.By thin mechanical whorl or any similar mobile device, lens subassembly 23 can be vertically near or move away from imager 22.Should move the focal length that changes imaging device.Simultaneously, sealing strip 31 must be provided with and prevent that exterior materials from entering this mechanism.In another example, imaging device and lens subassembly can replace with the focusing camera module.In this example, need more complicated processor and drive motor assembly to drive this camera module.
Continue with reference to figure 2A, one or more light sources 24 that are used to illuminate viewing area also are electrically connected to surface-mounted integrated circuit 21.In this representative embodiment, two light emitting diodes (LEDs) are arranged along the girth of imaging device 22.As shown in Figure 4, this LEDs outwards gives prominence to so that imaging device 22 and lens subassembly 23 are recessed between two LEDs from surface-mounted integrated circuit.Alternatively, LEDs 24 can be recessed in imaging device 22 and/or lens subassembly back, so that the light that sends from LEDs transmits or be sent to the top that extends in imaging device 22 or exceed the luminous point of imaging device 22 with pipeline.Shown representational pipeline transfer structure among Fig. 2 C.In each example, imaging device and lens subassembly are recessed in the luminous point back have reduced from the backscattering of LEDs or interfere light.
Hyaline cap 26 with these component packages in imager housing 14.For example, cap 26 can be made by acryhic material, and this acryhic material can make light be transmitted in the viewing area and from viewing area from LEDs and turn back to imaging device.The durable transparent material of other type can be used to replace acryhic material.In this representative embodiment, each outstanding LEDs is by projection 27 sealings that are formed in the cap 26.In order fully to illuminate viewing area, each LED should leave imager housing 14 with the visual angle of 60 degree preferably near the visual angle emission light of imager.Can use LEDs with such visual angle.But the LED with 132 degree visual angles can provide a kind of more expensive selection.In this case, the flexible lens that form in end of projection 27, it will be 60 degree visual angles from the light focusing of LEDs, as shown in Figure 4.Thereby cap 26 also can be used as the lens of light source.Cap 26 is preferably ultrasonically welded to imager housing 14 outward, forms the shell of sealing thus; In addition, also can consider cap is sealed to the technology of imager housing.Shown in Fig. 2 B another embodiment of imager housing 14.
In one embodiment, imager housing 14 is connected to flexible cable 16 by the integrated threaded sleeve 29 that is formed on imager housing 14 1 ends.Threaded sleeve 29 on the imager housing screws in concave part along the associating device inside surface that is formed on the flexible cable far-end.Each this sleeve pipe and associating device are provided for the axial passage of multiple conducting wires, and this lead is connected electrically between the surface-mounted integrated circuit and display housing in the imager housing.This multiple conducting wires can further be encapsulated in the protection cable and also can further not encapsulate.
With reference to figure 5A-5C, web member 51 can be detachably connected to imager housing 14.Web member 51 generally includes extension 53, and it is parallel to cylindrical imager housing extension, and extends beyond this housing outward; With the folder 52 that is connected to cylindrical housings.The far-end of extension 53 can further be constructed the object of fetching or controlling near imager housing 14 these ends.For example, web member 51 can be configured to as shown in Figure 5 uncinus or the magnet as shown in Fig. 5 B.In another example, this web member can be the mirror as shown in Fig. 5 C.The present invention also can consider other structure, for example ring, lance shape thing or cutter sweep.
In a representative embodiment, the imager housing is provided with the engaging zones that is used for web member 51 as shown in Fig. 6 A.This engaging zones comprises the annular recess 62 that is formed in the imager housing outer surface.In this annular recess, also be formed with two relative cutting parts 62, wherein each cutting part 62 forms rectangle plane surface 63, has the longitudinal axis 64 that is parallel to cylindrical imager housing axis.Annular surface 66 is formed between two relative cutting parts.Folder 52 further forms cylinder shape belts 54, has formation annular breach 55 wherein, is slightly larger than annular fixed surface 66 so that press from both sides 52 annular breach 55.In addition, the size of annular recess 62 is made the cylinder shape belt 54 that can hold this folder.This engaging zones can further comprise the lock slots 67 that is formed on axis extension in its annular surface and that be parallel to cylindrical imager housing.The size of lock slots 67 is made the extension 53 that can hold this web member.
With reference to figure 6B, web member 51 is with 54 and slip into annular recess 62 and be connected to imager housing 14 by sliding cylinder shape above imager housing 14 recessed portions.Be recessed to and prevent in the annular recess that web member from sliding forward or backward along this imager housing.Then web member 51 is revolved around the axis of this housing and turn 90 degrees, be recessed in the lock slots, prevent the web member left rotation and right rotation thus up to the extension 53 of web member 51.The elasticity loading of this band is drawn in extension and is further prevented from the lock slots 67 to break away from from this imager housing.Should understand, how clamp mechanism is detachably connected to the non-limiting example of this imager housing for this web member.Fig. 6 C shows being threaded between web member 51 and the imager housing 14.The present invention also can consider other connected mode, and for example magnetic connects.
With reference to figure 7, display housing 12 is connected to the near-end of flexible cable 16.In representative embodiment, display housing 12 is the pistol shape.Especially, display housing 12 comprises handle portion 71, constructs the operating personnel's grasping with this device of cause; With teat 72, when by user's grasping, it extends away from the user, so that teat forms the obtuse angle with respect to this display housing handle portion.Other hand held structures that is used for display housing also falls in the aspect widely of the present invention.
In a representative embodiment, the male thread joint 82 that is formed on flexible cable 16 near-ends is used for cable is connected to display housing 12, illustrates as the best among Fig. 8 A and the 8B.In this case, knurled nut 84 is fixed together with nut holder 86.This male joint 82 screws among the knurled nut 84, thus flexible cable 16 is connected to nut holder 86.Then this nut holder is connected to the teat of display housing 12.Another representative embodiment is illustrated among Fig. 8 C.In this embodiment, intermediate head 88 is connected to this display housing 12.In Fig. 8 D, flexible cable 16 uses separable associating device to be connected to intermediate head 88 successively, and this associating device will describe in further detail hereinafter.The present invention can consider the connection of other type.
Turn back to Fig. 7, display housing 12 structures support remaining functional unit of testing fixture.In this representative embodiment, this functional unit comprises display device 73, interface board 74, power switch 75 and power supply 76 (being the 4AA alkaline battery).When the handle portion 71 of this device of operating personnel's grasping, display device 73 preferably is orientated towards operating personnel.Though current preferred LCD should be understood, also can use the display device of other type, for example cathode-ray tube (CRT) or light-emitting diode display.
The operating aspect of this testing fixture can be understood better from the process flow diagram shown in Fig. 9.Power switch 75 is arranged between power supply 76 and all the other functional units.When operating the ON position, electric power is fed to interface board 74 from power supply 76 by operating personnel.This interface board 74 is fed to electric power display device 73 and imaging device 22 successively.
In this representative embodiment, power switch 75 can further be operated the intensity of controlling LEDs.In order to reach this purpose, also electric power is fed to LED interface board 91.Based on the setting of power switch 75, LED interface board 91 transmits control signal to LEDs successively.When rotating disk rotated away from the ON position, the intensity of LEDs increased.By this way, the illumination of operating personnel's scalable viewing area improves the quality of required image thus.The alternate embodiment of this testing fixture can adopt other the control device by user's operation.For example, this testing fixture can comprise display contrast's control device, screen display or imaging device enlarging function control device.
In case opening power, imaging device 22 begin to catch image and view data is sent to the Video Decoder 92 that is positioned on the interface board 74 as vision signals.This Video Decoder 92 is decoded vision signal, and it is sent to display device 73 by another interface.Display device 73 operationally is shown to operating personnel with video image then.
In representative embodiment, this imager housing is connected to display housing by the paired cable of four lead distortions.Function to each root lead describes below: power lead is used for transmitting electric power, video line to imaging device, the view data (for example, NTSC signal) that is used for capturing sends back interface board from imager, control signal wire, be used to change the intensity and the ground connecting line of light source.Can imagine, may need more or less lead to support different functions.
In another embodiment, this testing fixture can provide image self-correcting characteristic.When pushing camera in the inspection area, it may twist, and can't judge direction to such an extent as to be shown to operating personnel's image.In order to regulate image, an accelerometer is placed in the imager housing.This accelerometer can be operated the position of reporting this camera with respect to the gravity vector that senses.After providing position data and view data, the microprocessor that is arranged in display housing is applied to this view data with known corkscrew rule (for example rotation matrix).In this way, this view data is erectly presented to operating personnel all the time.
In the another aspect of the present invention, this remote inspection device can be designed to module as shown in Figure 10.Usually, more expensive processing element for example LCD be arranged in the display housing; And not too expensive component is used to make up the imager housing.Modularization can make not too expensive component exchange as required or substitute.
For example, the imager housing that can make different size of the separable associating device between imager housing and the flexible cable uses together with identical display.The dirigibility that modularization by this device obtains also makes the production of the imager head that can easily substitute have high cost benefit, and this imager head can be fixed on the sphere direction of any desired about the central axis of cable or this imager head.The first imager head 14 ' can be built into the aforesaid imaging device that is orientated along this imager head central axis that has; And the second imager head 14 " have imaging devices that become 90 degree orientations with central axis with the imager head.Imager head with other orientation also can be considered.
Similarly, the second separable associating device between display housing and the flexible cable can use dissimilar cables when the identical imager housing of maintenance is constant.According to application, the length of cable can change between to more than 50 feet at 3 feet, and diameter can be from changing less than 1 inch to several inches.And different cables can have different flexible, hardness, elasticity tension, submissive cable properties, tape measure material similarity, fish tape or fishing rod similarity and pushing and pressing cable similarity etc.Can imagine that remote inspection device can be used as the tool set sale that comprises display housing 12, at least one imager head 14 and have the different cables of a cover of different structure.Additional imager head can be included in this tool set, also can sell separately.
A given adjustable display housing, the user can construct this testing fixture and meet special requirement.For first task, select the cable connectors of the first kind used with specific imaging head, and be connected to display housing.For different tasks, the user can dismantle this imaging head, and connects the imaging head with difference in functionality.Alternatively, the user may also need the breakdown cable web member.In this case, the user further unloads the cable connectors of the first kind, and connects second cable connectors that has with first kind cable connectors different structure.For example, the cable connectors of second type can have the length different with the cable connectors of the first kind, diameter or flexible.The user selects suitable imaging head and is connected to the cable connectors of second type then.In this way, more expensive display housing can dispose together with the different not too expensive component that making is used for particular task.
Figure 11 A and 11B show representational separable associating device 110, and it can be arranged between imager housing 14 and the flexible cable 16.In the shooting side, the cylinder-shaped sleeve 29 with external thread part is outstanding from this housing.Male joint 112 is fixed in the axial passage of this threaded sleeve.Male joint 112 is electrically connected to imaging device and light source via suitable lead successively.On the other hand, corresponding female joint 114 is connected to the far-end of flexible cable 16.In like manner, female joint 114 is electrically connected to the lead that extends to display housing through flexible cable 16.By male joint 112 is inserted in the female joint 114, imager housing 14 is electrically connected to flexible cable 16.
To be tightly connected in order providing, also on the far-end of flexible cable 16, to be furnished with cylindrical associating device 116.Cylindrical associating device 116 further provides indent slot part 117, and it cooperates with the threaded portion of sleeve pipe on the imager housing.In order to finish connection, cylindrical associating device 116 slides above female joint, and is spun on the threaded portion of this sleeve pipe, electrical connection is encapsulated in this associating device thus.O type ring 119 or other seal member preferred arrangements are between cylindrical associating device inside surface and flexible cable outside surface.Separable associating device with similar structures can be arranged between flexible cable and the display housing.And, can imagine that the detachable associating device of other type also can be used to realize modularization.
In another embodiment, second joint 120 can be arranged between imager housing 14 and the flexible cable 16, as shown in Figure 12.Second joint 120 is designed to more soft than flexible cable, provides tension force to alleviate thus when the imager housing makes a circulation in the inspection area.In this representative embodiment, the gauffer shape surface of second joint 120 provides pliability for it.In the shooting side, the cylinder-shaped sleeve with external thread part is outstanding from this housing.In representative embodiment, an end of second joint 120 is overmolded onto around this cylinder-shaped sleeve, comes to form between the imaging housing 14 and second joint to connect.The opposite side of second joint is constructed in the above described manner and is connected to flexible cable.Again, second joint of the type also can be arranged between the other end and display housing of this flexible cable.
Figure 13-15 illustrates another representative separable associating device 200 and assembly thereof.Associating device 200 can be used to connect the different parts of testing fixture 10.By non-limiting example, associating device 200 can connect imager housing 14 and flexible cable 16 as shown with going out.Also can imagine, this associating device can be used to flexible cable 16 is connected to display housing 12 (for example, as shown in Fig. 8 D).
In the representative illustration of this flexible cable 16, lead 220 is covered by oversheath 222, and forms end 224.Should understand, according to principle of the present invention, flexible cable 16 can have different parts and structure.
With particular reference to Figure 14 A-14D, associating device 200 comprises deformable lasso or collar component 202 and external metallization sheath 222.Lasso 202 also comprises end cap 232, engages with the end 224 of flexible cable 16.Lead 220 extends by the hole in the end cap 232 234.End cap 232 is provided with the fixed position of lasso 202 along flexible cable 16 length.And when lasso 202 is arranged on the flexible cable 16 up to the end 224 when engaging end caps 232, end cap 232 is provided for the simple assembling of lasso 202 and flexible cable 16.
In addition, lasso 202 comprises outer surface 236, is configured to coupling spool 206.Outer surface 236 can have diameter D1, and its size is provided by the interference engagement that can provide with sleeve 206, as more detailed description herein.Lasso 202 also has angled end-face in its end relative with end cap 232.As being described in more detail herein, angled end-face 238 helps to make associating device 200 more easily to pass through the space that is limited.And lasso 202 has the teat 240 that extends from outside surface 236.As shown in FIG., teat 240 can ridge or the form of spline extend in around the outside surface 236.As describing in detail herein, teat 240 engages with the complementary shape of sleeve 206 and prevents moving to axial therebetween.As used herein, term " move axially " refer to along the associating device 200 part length move.
Preferably for example plastics or nylon constitute lasso 202 by electrically insulating material.As described herein, with other components bonding of associating device 200, lasso 202 makes associating device 200 and flexible cable 16 electrical isolations, and thereby with the other parts electrical isolation of testing fixture 10.And when the size of the diameter D1 of outer surface 236 was provided by the interference engagement that can provide with sleeve 206, lasso 202 can be made by deformable material.
Representative sleeve 206 comprises cylindrical part 250, and it is arranged in lasso 202 and flexible cable 16 tops.The cylindrical part 250 and the lasso 202 of sleeve 206 have sealed engagement, prevent that fluid is communicated with (for example, providing water-stop) therebetween.Lasso 202 and cylindrical part 250 also provide sealed engagement between lasso 202 and flexible cable 16.Therefore, associating device 200 is a water-stop between the cylindrical part 250 of flexible cable 16 and sleeve 206.For example, lasso 202 can be press fit in the cylindrical part 250, because the surface, inside 252 of cylindrical part 250 can have the littler diameter D2 of diameter D1 than the complementary portion of lasso 202 outer surfaces 236.Like this, sleeve 206 can make lasso 202 distortion.And sleeve 206 has the recess 254 in a plurality of inside surfaces 252 that are formed on teat 240 complementations.Lasso 202 spinning (swaged) are gone in the sleeve 206, so that teat 240 extends in the recess 254.The joint of teat 240 and recess 254 prevents moving to axial between lasso 202 and the sleeve 206.As shown in FIG., recess 254 can extend in the recess form formation on every side of inner surface 252.
Sleeve 206 also comprises main part 260, and it has inner surface 262 and outer surface 264.As describing in detail more herein, inner surface 262 structures support electric connection 208.And as describing in detail more herein, the chamfered portion 266 of outer surface 264 helps to make associating device 200 more easily to pass through the space that is limited.Main part 260 also has the projection 268 of extending from wherein.Projection 268 structures prevent rotation relatively in associating device 200, as describing in detail more herein.
Representative electric connection 208 is arranged in the sleeve 206, and is supported by inner surface 262.For example, the size of electric connection 208 can be made into inner surface 262 and forms interference engagement, comes in assembling process electric connection 208 is fixing on the throne.Protrusion 280 extends from electric connection 208, and is electrically connected to lead 220.For example, lead 220 is welded to electric connection 208.And electric connection 208 makes lead 220 and protrusion 280 and sleeve 206 insulation.Should understand, electric connection 208 can have multiple parts and structure, and can be connected to lead 220 in many ways.
In addition, representational sleeve 206 can comprise the bolt 282 near electric connection 208.With reference to figure 14C-14D, gib screw 284 is arranged in the bolt 282.The gib screw 284 fastening electric connections 208 and auxiliary that electric connection 208 is fixing with respect to sleeve 206 that engage.
With particular reference to Figure 14 C, space 290 is formed in the sleeve 206, and when these parts are assembled together between lasso 202 and electric connection 208.Lead 220 extends to electric connection 208 from the end 224 of flexible cable 16 through space 290.With reference to figure 14D, space 290 can be filled or the back sealing with insulating material or back sealing (backpotting) material 292.Sleeve 206 comprises the hole 294 that is communicated with space 290.Gib screw 284 engages electric connection 208 fixing on the throne with electric connection 208, and insulating material 292 is inserted pass hole 294, and packing space 290.
Space between insulating material 292 minimizings and/or elimination lasso 202 and the electric connection 208.Insulating material 292 will extend through the lead and sleeve 206 insulation in space 290, and auxiliary that electric connection 208 is fixing on the throne as bonding agent.And insulating material 292 has increased water-stop, shock resistance and the permanance of associating device 200.According to principle of the present invention, insulating material 292 can be made of a variety of materials.By non-limiting example, insulating material 292 can be foam, epoxy resin or glue.Like this, insulating material 292 can be configured to hardening in space 290.
With particular reference to Figure 14 E, 14F and 15, associating device 200 can have the second parts assembling relevant with the cut cable 300 of imager housing 14, is similar to first parts relevant with flexible cable 16 and assembles.Therefore, should understand, the description of this paper is equal to and is applicable to similar parts, except as otherwise noted.
Associating device 200 has the lasso 302 that engages with cut cable 300, be arranged in the sleeve 206 of lasso 302 tops and be supported on electric connection 308 in second parts assembling inner sleeve 306.Space 310 is formed in the sleeve 306, and is formed between lasso 302 and the electric connection 308.Space 310 usefulness insulating material 312 are filled by the hole in the sleeve 306 314.
Form contrast with the sleeve 206 of the first associating device assembling 200, sleeve 306 does not comprise the projection from its extension.And as shown in Figure 15, sleeve 306 has formation recess 320 wherein.Projection 268 complementations of recess 320 and sleeve 206, and when two assemblies of associating device 200 are combined together, hold projection 268.By being arranged in the projection 268 in the recess 320, sleeve 206 and 306 is suppressed relative to each other rotation.This is connected the moment of torsion resistance is provided in the associating device 200.
Sleeve 306 also comprises screwed plug 322 and the gib screw 324 that is arranged in the bolt 322.Be similar to bolt 282 and the gib screw 324 described herein, bolt 322 close electric connections 308, the gib screw 324 fastening electric connections 308 that engage, and auxiliary that electric connection 308 is fixing with respect to sleeve 306.
Electric connection 308 comprises formation hole 330 wherein.Hole 330 is electrically connected to the lead 332 of cut cable 300.Hole 330 has size and the structure with protrusion 280 complementations of electric connection 208.When two assemblies of associating device 200 were combined together, hole 330 held protrusion 280.Thus, the lead 332 of the lead 220 of flexible cable 16 and cut cable 300 is electrically connected.And lasso, electric connection and insulating material be together with sleeve 206,306 and wire insulation, and therefore with the remainder electrical isolation of testing fixture 10.
The lead 220 of flexible cable 16 and the lead 332 of cut cable 300 are wound on together.This structure provides dirigibility for the length that is electrically connected.Therefore, when flexible cable 16 or cut cable 300 bending in use, or when needing the variation relevant with length in the assembling process, lead 220 all can provide the different length that is connected with 332.
With particular reference to Figure 13 and 14 F, associating device 200 also comprises the sleeve pipe 340 that is arranged in sleeve 206,306 tops and engages.Especially, engage with complementary threads part 348 on the outer surface 236 at sleeve 206 at the threaded portion 342 on the inner surface 344 of sleeve pipe 340.And the shoulder 352 on sleeve pipe 340 inner surfaces 344 engages with the complementary shoulder 356 in the sleeve 306.Therefore, when two assemblies will uniting device 200 when coupling spool 306 were bonded together, sleeve pipe 340 can be fastened on the sleeve 206.
Sleeve pipe 340 also can have the sealed engagement with sleeve 206,306.Especially, first seal member 360 is supported by sleeve 206 and engages with sleeve pipe 340 inner surfaces 344.In addition, second seal member 362 is supported by sleeve 306, and engages with the surface, inside 344 of sleeve pipe 340.Sealed engagement between these sleeves 206,306 and the sleeve pipe 340, and the joint between sleeve and lasso, lasso and the cable makes associating device 200 water-stops.
Sleeve pipe 340 also comprises the inclined-plane 370 near its end.The outer surface 264 of inclined-plane 370 and sleeve 206 sloping portions 266 and the inclined-plane of lasso make the easier space that moves through qualification of associating device together.For example, if associating device 200 is handled through restriceted envelopes, during for example angled plumbing installation, the inclined-plane suppresses associating device 200 and limit or other protrusion and unites the mode that device 200 further advances with prevention or overslaugh and engage.
Associating device 200 can change in many ways.Its parts can have multiple structure, and can comprise multiple material.Therefore, should understand, the associating device 200 of Miao Shuing comes down to exemplary herein.
With reference to figure 16-17, there is shown another representative deformable lasso or collar component 402.Should understand, according to principle of the present invention, for example about the description of lasso 202,302, lasso 402 can be included in the associating device.
Lasso 402 is arranged in cable 410 tops.Cable 410 has oversheath 422.Oversheath 422 does not extend to the end 424 of cable 410.Like this, outside inner part 426 is exposed to.And, the extensible cable 410 that passes of lead (not shown).Lasso 402 has the shape of the annular of being generally, and is arranged in around the cable 410, and inside surface 430 engages with oversheath 422 and inner part 426.Lasso 402 also comprises the end cap 432 that engages with end 424.Hole 434 is arranged in the end cap 432, so that the lead (not shown) of cable 410 can pass its extension.
Lasso 402 also comprises outer surface 436.Outer surface 436 structure engages with sleeve part, with herein about lasso 202,302 described same way as.Lasso 402 also has angled end-face 438 in the opposite end of itself and end cap 432.Help lend some impetus to as illustrated herein, such inclined-plane and to move through the space that is limited.In addition, lasso 402 has the single teat 440 that extends from outer surface 436.Be similar to herein the teat 240 of the lasso of describing 202, teat 440 engages with the complementary shape of sleeve or like and prevents moving to axial therebetween.As shown in FIG., teat 440 can ridge or the form of spline extend in outside surface 436 around.
Lasso 402 is overmolded onto on the cable 410.Particularly, lasso 402 is molded on the cable 410, so that the part on inner surface 430 engages with oversheath 422, and inner another part of surperficial 430 engages with inner part 426, and outshot 442 surperficial 430 extends in the groove 444 of inner part 426 internally.Therefore, lasso 402 and cable 410 have sealed engagement, and its fluid that suppresses therebetween is communicated with.Lasso 402 is also along the axial restraint of cable 410.And lasso 402 is formed with wedge portion 446, with wedge portion 448 complementations of inner part 426.This wedge portion engages with lasso 402 and inner part 426, and suppresses lasso 402 and inner part 426 relative rotations.Like this, the influence of the rotary torque of this wedge portion inhibiting effect on this assembly.
Should understand, lasso 402 can be identical with the lasso of describing herein 202,302.For example, lasso 402 can for example plastics or nylon be made by insulating material.And lasso 402 can be a deformable material.Like this, the interference engagement that provides with sleeve or like is provided the size of lasso 402.In addition, sleeve or like can be arranged in lasso 402 tops, and engage, so that lasso 402 provides sealing between cable 410 and sleeve or like, and lasso 402 makes cable 410 and sleeve or like electrical isolation.
Top description in fact only is exemplary, rather than is intended to the restriction to the present invention, application or use.

Claims (32)

1. a remote inspection device is characterized in that, comprising:
Flexible cable has near-end and far-end;
The imager housing is essentially cylindric, aims at described flexible cable is concentricity, and is connected to the far-end of described flexible cable;
Imaging device embeds described cylindric imager housing outward, and described imaging device can be operated the image of catching near described flexible cable far-end viewing area, and is vision signal with described image transitions;
Two or more light sources, outstanding outward along the girth of described imaging device from described cylindric imager housing is so that described imaging device is recessed between the described light source;
Hyaline cap is encapsulated in described imaging device and light source in the described imager housing; With
Display housing, be connected to the near-end of described flexible cable, and be configured to can be by user's grasping of described device, wherein said display housing comprises display device, be suitable for receiving vision signal, and can operate and convert described vision signal to video image from imaging device.
2. remote inspection device according to claim 1, wherein each described light source is projected in the projection that is formed in the described cap, and the shape of described projection make make light from the light-resource fousing to the viewing area in.
3. remote inspection device according to claim 1, wherein said light source is further defined to light emitting diode.
4. remote inspection device according to claim 1, wherein said cap is made by transparent plastic.
5. remote inspection device according to claim 1, wherein said cap are ultrasonically welded to described imager housing.
6. remote inspection device according to claim 1, wherein said display device has handgun shape.
7. remote inspection device according to claim 1, wherein said display device has handle portion, is configured to the user's grasping by described device; Teat when by user's grasping, extends away from the user, so that described teat is with respect to the handle portion formation obtuse angle of described display device.
8. remote inspection device according to claim 1, wherein said flexible cable is made of cylindric conduit.
9. remote inspection device according to claim 1, wherein said display device is further defined to LCD.
10. remote inspection device according to claim 1, also comprise web member, be detachably connected to described cylindric imager housing, described web member has extension, its axis that is parallel to described cylindric imager housing extends, and extends beyond described housing outward.
11. remote inspection device according to claim 10, wherein said web member also comprises the folder that is connected to described cylindrical shell.
12. remote inspection device according to claim 11, wherein said cylindric imager housing has the annular recess that size is made the folder that holds described web member.
13. remote inspection device according to claim 12, wherein said cylindric imager housing comprises two relative cutting parts that are formed in the described imager housing annular recess, and be arranged on annular surface between each relative cutting part, the described folder of described web member is further defined to cylindric band, have the annular breach that is formed at wherein, wherein said annular breach is greater than the annular surface of described imager housing.
14. remote inspection device according to claim 13, wherein said cylindric imager housing also comprises latch recess, be formed in its described annular surface and be parallel to the described axis of described cylindric imager housing and extend, the size of wherein said latch recess is made the extension that can hold described web member.
15. a remote inspection device is characterized in that, comprising:
The imager housing comprises imaging device;
Display housing comprises display device and compact power;
First cable, have first end that is connected to described imager housing and second end that is connected to described display housing, described first cable has oversheath and multiple conducting wires, described lead be operably connected described compact power and described imaging device, described lead further be operably connected described imaging device and described display device; With
Separable associating device is connected to described display housing with second end of described first cable, and described separable associating device comprises first assembly, is fixed to described second end of described first cable; With second assembly, be connected to described display housing, described first assembly comprises:
First collar component is arranged on described first cable top, and has the end cap of described second end top that extends in described first cable, and described first collar component is an electrical insulator,
First sleeve, engage with described first collar component, described first sleeve and described first collar component are fixed to described first cable, the fluid that described first collar component provides sealing to suppress between described first sleeve and described first cable is communicated with, described first collar component makes described first sleeve and the described first cable electrical isolation
First electric connection is supported in described first sleeve, and is electrically connected to described lead.
16. remote inspection device according to claim 15, wherein said display housing comprise the intermediate head of extending from it, described intermediate head has oversheath and multiple conducting wires, and:
Described second assembly of described separable associating device is fixed to the described end of described intermediate head, and described second assembly comprises:
Second parts are arranged on described intermediate head top, and have the end cap that extends above the described ends of described intermediate head, and described second collar component is an electrical insulator,
Second sleeve, engage with described second collar component, described second sleeve and described second collar component are fixed to described intermediate head, the fluid that described second collar component provides sealing to suppress between described second sleeve and the described intermediate head is communicated with, described second collar component with described second sleeve and described intermediate head electrical isolation and
Second electric connection is supported in described second sleeve, and is electrically connected to the described lead of described intermediate head.
17. remote inspection device according to claim 16, wherein said separable associating device also comprise and the overlapping sleeve pipe in described first and second sleeve parts.
18. remote inspection device according to claim 17, wherein said sleeve pipe has angled end-face, is positioned between the outside surface of one of its outside surface and described first and second sleeve.
19. remote inspection device according to claim 17, wherein said separable associating device also comprises first seal element, is arranged between described sleeve pipe and described first sleeve; With second seal element, be arranged between described sleeve pipe and described second sleeve.
20. remote inspection device according to claim 15, one in wherein said first and second sleeves has the jut that extends from it, in described first and second sleeves another has the recessed portion with described jut complementation, and described jut joint the female partly suppresses the relative rotation between described first and second sleeves.
21. remote inspection device according to claim 16, in wherein said first and second electric connections one have a plurality of extend from it away from protrusion, in described first and second electric connections another has the hole of a plurality of and described protrusion complementation, and described pore volume is received described protrusion and is electrically connected the described lead of described first cable and the described lead of described intermediate head.
22. remote inspection device according to claim 15, wherein said first cable also comprises the inner part that extends from described oversheath, described inner part forms described second end of described first cable, and described first collar component is extended above described inner part and described oversheath.
23. remote inspection device according to claim 22, wherein said inner part has groove in its outside surface, and in the time of on being molded over described first cable, described first collar component forms the protuberance that extends to the complementation in the described groove.
24. remote inspection device according to claim 22, wherein said inner part and described first collar component comprise wedge-shaped part in each, described wedge-shaped part engages the relative rotation that suppresses between described inner part and described first collar component.
25. remote inspection device according to claim 22, wherein said first collar component is molded on described first cable.
26. remote inspection device according to claim 15, wherein said separable associating device also comprise described first end that is arranged in described first cable and the insulating material between described first electric connection.
27. remote inspection device according to claim 26, wherein said first sleeve has the hole that extends through it, is used to insert described insulating material.
28. remote inspection device according to claim 15, wherein said first sleeve make described first collar component distortion.
29. remote inspection device according to claim 28 also comprises being arranged in described first sleeve, and is arranged in the described end cap of described first collar component and the electrically insulating material between the described electric connection.
30. remote inspection device according to claim 15, wherein said second collar component has at least one teat that extends from its outside surface, described first sleeve has at least one and is formed on recess in its inside surface, described at least one teat of described first collar component extends in described at least one recess of described first sleeve, to suppress moving to axial therebetween.
31. remote inspection device according to claim 15, wherein said first collar component has angled end-face, is positioned between the described oversheath of its described outside surface and described first cable.
32. remote inspection device according to claim 15, wherein said first sleeve has the outside surface that comprises rake.
CNU2007200045968U 2007-01-04 2007-03-30 Remote test device Expired - Lifetime CN201057530Y (en)

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US87863007P 2007-01-04 2007-01-04
US60/878,630 2007-01-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103048337A (en) * 2012-12-14 2013-04-17 徐州泰诺仕视觉科技有限公司 High-precision video measurement system of thin tube inner wall
CN103472067A (en) * 2013-09-12 2013-12-25 国家电网公司 Visual detection tool for cable holes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103048337A (en) * 2012-12-14 2013-04-17 徐州泰诺仕视觉科技有限公司 High-precision video measurement system of thin tube inner wall
CN103472067A (en) * 2013-09-12 2013-12-25 国家电网公司 Visual detection tool for cable holes

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