CN203632755U - Torsional spring switching mechanism and infrared thermal imaging camera with same - Google Patents
Torsional spring switching mechanism and infrared thermal imaging camera with same Download PDFInfo
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- CN203632755U CN203632755U CN201320750096.4U CN201320750096U CN203632755U CN 203632755 U CN203632755 U CN 203632755U CN 201320750096 U CN201320750096 U CN 201320750096U CN 203632755 U CN203632755 U CN 203632755U
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- block piece
- torsion spring
- switching mechanism
- output shaft
- torsional spring
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Abstract
The utility model belongs to the technical field of thermal imaging equipment, and aims to provide a torsional spring switching mechanism. The torsional spring switching mechanism is used for automatically switching a baffle member in an infrared thermal imaging camera, and comprises a motor transmission assembly which is arranged on a mainframe for providing switching power for the baffle member, an extending end of an output shaft of the motor transmission assembly is fixedly connected with the baffle member which is used for correction, the extending end of the output shaft is sleeved with a torsional spring, a first spring arm of the torsional spring is arranged between any two adjacent limiting members which are fixed on the mainframe, and is used for realizing the gradually adjustable torsion of the switching mechanism and reducing the production debugging difficulty; and a bent part of the torsional spring hooks the baffle member, so as to switch and return the baffle member automatically after finishing the correction. The utility model further aims to provide the infrared thermal imaging camera with the torsional spring switching mechanism, which saves the internal space, improves the stability and durability, and saves the production debugging time.
Description
Technical field
The utility model belongs to thermal imaging apparatus technical field, and the machinery that relates to a kind of thermal imaging product switches torsion spring structure, relates in particular to a kind of torsion spring switching mechanism and has the thermal infrared imaging camera of this mechanism.
Background technology
So-called thermal infrared imaging camera, utilize exactly Infrared Detectors, optical imagery object lens to receive the infrared radiation signal of measured target, on temperature-sensitive source through infrared optical system Infrared Detectors, utilize electronic scanning circuit to scan and convert the signal of telecommunication to the infrared thermal imagery of measured object, show by TV screen or monitor the instrument that such principle of thermal-induced imagery is made through amplifying processing, conversion or video standard signal.
Because may there is deviation in various degree in to the process such as scanning or the conversion to various signals of measuring target, undistorted for guaranteeing sampled signal, current thermal infrared imaging camera both domestic and external all need to block the catch of a slice high emissivity material so that the fiducial value of demarcating is proofreaied and correct at detector surface in the time of work, after completing, correction need to allow catch remove from detector surface, detector is sampled normally subsequently, needs timing for cutting gearshift sheet.
Conventionally, catch blocks detector to removing general needs 3～5 seconds from mobile, and according to the applied environment of thermal infrared imaging camera, generally, catch needs action once about per half an hour, therefore,, if the video camera of all weather operations moved for average 50 times by every day, within 1 year, needs turn round nearly 20,000 times.
The mechanism of traditional switching catch generally adopts the mode of " motor-driven assembly+extension spring ", which is to fixed position by motor-driven Component driver catch, now extension spring is stretched, and has proofreaied and correct rear motor stall, and now extension spring relies on restoring force that catch is playbacked.
Although this kind of structure can meet the switching action of catch, but himself mechanism of this structure is larger, therefore require relatively large to the inner space of product (as video camera) thereupon, separately extension spring because of what adopt, cause the elastic force of whole switching mechanism gradient to regulate, the stability of this switching construction and durability increase to a certain extent the difficulty of producing debugging, and based on the intrinsic characteristic of extension spring itself, so can slightly be disliked deficiency unavoidably.
Utility model content
The purpose of this utility model is to overcome above-mentioned technical problem, the torsion spring switching mechanism that provides a kind of quick switching that realizes catch and its torsion can gradient to regulate.
The utility model is achieved in that a kind of torsion spring switching mechanism, for the automatic switchover of the block piece to thermal infrared imaging camera, comprise and being located on a mainframe, for described block piece provides the motor-driven assembly that switches power, the external part of described motor-driven assembly output shaft is fixedly connected with the block piece for proofreading and correct;
On described motor-driven assembly output shaft, be arranged with torsion adjustable and provide the torsion spring of torsion of the playback of automatically switching, described torsion spring to have can to catch on described block piece and drive the first spring arm of swinging and for the second spacing spring arm by this block piece for described block piece.
Further, described mainframe is fixed with at least one locating part that limits described the second spring arm riding position, and each described locating part is around the periphery of the fixed position of described torsion spring.
Further, described the second spring arm, between any two adjacent described locating parts, or is positioned at the outside of the described locating part of the initiating terminal identical with the swaying direction of described block piece.
Further, described locating part is provided with 3, and described the second spring arm is positioned at the outside of locating part described in first on swaying direction.
Further, described output shaft external part has for the sleeved part of sheathed described torsion spring and fixed part for being fixedly connected with described block piece.
Further, described block piece comprise stopper section for blocking, with the connecting portion that described output shaft fixed part is fixedly connected with, described the first spring arm end have can hooking described in the bending part of connecting portion.
Further, described connecting portion offers location notch, and described output shaft is provided with and can be placed in described location notch, in order to lock the pin block of described block piece.
The present invention also provides a kind of thermal infrared imaging camera, and described thermal infrared imaging camera has torsion spring switching mechanism described above.
Compared with prior art, the utility model torsion spring switching mechanism is by being located at torsion spring set the sleeved part of external part of motor-driven assembly output shaft, the fixed part that on this basis block piece is set in to output shaft external part makes block piece be fixedly connected with output shaft, and the end that the pin block that is positioned at location notch is sheathed on to fixed part is to pin block piece; From with the direction of block piece outbound opposite direction, the bending part of the first spring arm of torsion spring is caught on to block piece, make to complete after correcting motor stall, block piece can be promoted to reset by the bending part on the first spring arm of torsion spring under the twisting force of torsion spring, because the second spring arm of torsion spring is stuck in the outside of the locating part of the initiating terminal identical with the swaying direction of block piece or arbitrarily between two adjacent locating parts, the torsion of torsion spring can gradient be regulated, thereby make torsion spring switching mechanism operation more steady.
Adopt the thermal infrared imaging camera of above-mentioned torsion spring switching mechanism, the inner space of greatly having saved video camera, has reduced design difficulty, in addition, because being the automatic switchover action of using torsion spring and complete block piece, make whole product there is better stationarity, durability and controllability.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of torsion spring switching mechanism in the utility model embodiment;
Fig. 2 is the three-dimensional exploded view of torsion spring switching mechanism in the utility model embodiment;
Fig. 3 is one of part assembly drawing of torsion spring switching mechanism in the utility model embodiment;
Fig. 4 is the partial enlarged drawing at the A place of Fig. 3.
Label in accompanying drawing is as follows:
10 torsion spring switching mechanisms, 100 motor-driven assemblies, 110 external parts, 112 sleeved part, 114 fixed parts, 120 mainframes, 200 torsion springs, 210 spring bodies, 220 first spring arms, 222 bending parts, 230 second spring arms, 300 block pieces, 310 stopper sections, 320 connecting portions, 400 first through holes, 500 pin blocks, 600 second through holes, 700 locating parts, 800 location notchs.
Embodiment
In order to make technical problem to be solved, technical scheme and the advantage of utility model clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with concrete accompanying drawing, realization of the present utility model is described in detail.
As shown in Fig. 1～Fig. 2, the utility model embodiment provides a kind of torsion spring switching mechanism 10, be mainly used to the automatic switchover to block piece in thermal infrared imaging camera 300, comprise and being located on a mainframe 120, for block piece 300 provides the motor-driven assembly 100 that switches power, the external part 110 of the output shaft of the motor in motor-driven assembly 100 is fixedly connected with the block piece 300 for proofreading and correct.
Particularly, in the present embodiment, motor-driven assembly 100 comprises motor, and this motor is mainly used to as block piece 300 provides power, and the output shaft of motor-driven assembly 100 refers to the output shaft of motor in fact; On mainframe 120, also offer a hole, offer this hole so that the output shaft of motor stretches out, understandably, mainframe 120 mainly plays the effect of support; Be fixedly connected with output shaft by block piece 300, in the time that electric motor starting drives output shaft rotation, block piece 300 is followed the rotation of output shaft and is done oscillating motion, to complete the corrective action of block piece 300.Understandably, torsion spring switching mechanism 10 also can adopt other Power Component to drive block piece 300, is not only confined to motor-driven assembly 100.
Particularly, block piece 300 is mainly used to the correction of the fiducial value of auxiliary shooting product, and in the present embodiment, preferably block piece 300 is catch, and understandably, this block piece 300 can also have for other object of the function of blocking.
For another example shown in Fig. 1～Fig. 2, on motor-driven assembly 100 output shafts, be arranged with torsion adjustable and comprise spring body 210 for block piece 300 provides the torsion spring 200 of torsion of the playback of automatically switching, described torsion spring 200, have and can catch on block piece 300 and drive the first spring arm 220 of swing and for the second spacing spring arm 230 by this block piece 300.Particularly, one end of spring body 210 and mainframe 120 offset, and the other end and block piece 300 offset; The first spring arm 220 and the second spring arm 230 extend in the opposite direction respectively spring body 210, the second spring arms 230 and are limited to following locating part 700.Understandably, torsion spring 200 is mainly used to for block piece 300 provides automatically reset power, in addition, because of the self structure characteristic of torsion spring 200, as exclusive lever construction of torsion spring 200 etc., can make the switching of block piece 300 more steady, thereby make assembly operating more smooth and easy; Because of the inherent characteristic of torsion spring 200, make the whole torsion spring switching mechanism space more required than traditional extension spring mechanism little, thereby saved design space, also strengthen the durability of whole mechanism.
As shown in Figure 2 to 4, mainframe 120 is fixed with at least one locating part 700 that limits the second spring arm 230 riding positions, and each locating part 700 is around the periphery of the fixed position of torsion spring 200.Understandably, on mainframe 120, be fixed with multiple locating parts 700, so that realize speed or the adjusting of dynamics ladder that block piece 300 switches.There is the characteristic of adjustability for meeting this structure, therefore, be at least provided with 2 locating parts 700.
Particularly, locating part 700 is fixed on mainframe 120, and be positioned at the homonymy of mainframe 120 with torsion spring 200, moreover, locating part 700 is also positioned at the same side of output shaft external part 110, and the rounded shape of periphery around the fixed position of spring body 210 is evenly arranged, and in fact, the particular location of locating part 700 can arrange according to actual needs.Understandably, the rounded shape of locating part 700 is evenly arranged, is mainly to produce in order reducing the production debugging difficulty of adjusting, thereby can saves the time of production debugging.
More specifically, in the present embodiment, locating part 700 is preferably to block, in fact, this locating part 700, can also be the objects such as pin, be used for placing obstacles for the rotation of torsion spring 200, thereby make torsion spring 200 in being driven by block piece 300, so that torsion spring 200 is for automatically promoting by block piece 300 energy reserve that resets.
As shown in Figure 3 or Figure 4, the second spring arm 230, between any two adjacent locating parts 700, or is positioned at the outside of the locating part 700 of the initiating terminal identical with the swaying direction of block piece 300.Particularly, here " locating part 700 of the initiating terminal identical with the initial motion direction of block piece 300 " refers to, if block piece 300 is counterclockwise motion, refer to first locating part 700 in counter clockwise direction in institute's finite place piece 700, in like manner, if block piece 300 for moving clockwise, refers to first locating part 700 on clockwise direction in institute's finite place piece 700.In fact, the swaying direction of block piece 300 also can be other direction.
As shown in Figure 4, in the present embodiment, preferably locating part 700 is provided with 3, particularly, is fixed with 3 locating parts 700 on mainframe.The second spring arm 230 is positioned at the outside of first locating part 700 on swaying direction, and this swaying direction can be counter clockwise direction, clockwise direction or other direction, and because of actual needs, the present embodiment is preferably counterclockwise.
As shown in Figure 1 or 2, output shaft external part 110 has for the sleeved part 112 of sheathed torsion spring 200 and fixed part 114 for being fixedly connected with block piece 300.Spring body 210 is sheathed on the sleeved part 112 of output shaft external part 110, and fixed part 114 joins with sleeved part 112, and fixed part 114 is positioned at the outermost end of external part 110.Preferably, sleeved part 112 is smooth round bar, is just entangled by spring body 210, and the diameter of sleeved part 112 is greater than the diameter of fixed part 114.
As shown in Figure 2, block piece 300 comprises the stopper section 310 for blocking, the connecting portion 320 being fixedly connected with output shaft fixed part 114, and preferably, one end of connecting portion 320 is fixedly connected with stopper 310, and the other end of connecting portion 320 is fixedly connected with fixed part 114; The first spring arm 220 ends have bending part 222 that can hooking connecting portion 320, and bending part 222 catches on connecting portion 320 from the side near the side that need block of connecting portion 320.
Particularly, the first spring arm 220 is positioned at the below of block piece 300, and bending part 222 is by the first up bending of the outer end of the first spring arm 220, then to by the part of bending again bending form one " U " type, preferably, twice bending is all for being 90 ° of bendings
Particularly, bending part 222 is caught on to the connecting portion 320 of block piece 300, therefore, the side of block piece 300 is stuck in bending part 222.Wherein, block piece 300 in the time of outbound, the vertical portion that whole torsion spring 200 is main relies on bending part 222 by block piece 300 with rotation, thereby energy reserve effectively; When the return of block piece 300, the main vertical portion by bending part 222 of torsion spring 200 is transmitted torsion to block piece 300, rotates playback thereby promote block piece 300.
Particularly, in the present embodiment, stopper 310 is square plates, the width of stopper 310 is greater than the width of connecting portion 320, so that realize better the correction of fiducial value, in fact the integral formation block piece 300 of stopper 310 and connecting portion 320 can also be two different parts or other the structure being fixedly connected with.
For another example shown in Fig. 1～Fig. 2, connecting portion 320 offers location notch 800, and output shaft external part 110 is provided with and can be placed in location notch 800, in order to lock the pin block 700 of block piece 300.Particularly, the edge of location notch 800 is higher than the bottom of location notch 800, so that bending part 222 catches on block piece 300, and the pin block 700 that helps restriction to be positioned at location notch 800 moves.As shown in Figure 2, on location notch 800, one end that connecting portion 320 is fixedly connected with fixed part 114 offers the first through hole 400, understandably, the first through hole 400 is mainly used to connect the fixed part 114 of sheathed output shaft, to realize, block piece 300 is fixed on output shaft, block piece 300 can be rotated with output shaft after electric motor starting.
As shown in Figure 1 or 2, fixed part 114 matches and connects the first through hole 400 and stretch out outside the first through hole 400, and understandably, fixed part 114 just coincide by the first through hole 400, and stretches out outside the first through hole 400, so that be sheathed pin block 500 retention positions.The cross sectional shape of the poroid and fixed part 114 of the first through hole 400 is identical, and understandably, the cross sectional shape of the poroid and fixed part 114 of the first through hole 400 is identical is in order to relatively rotate between anti-stop part 300 and output shaft.
Particularly, more as shown in Figure 1 or 2, torsion spring switching mechanism 10 also comprises locking block piece 300 and is positioned at the pin block 500 on block piece 300, and preferably, pin block 500 is square, and can be embedded in location notch 800, mainly departs from output shaft in order to anti-stop part 300; Pin block 500 offers the poroid identical with the cross sectional shape of output shaft fixed part 114 of the second through hole 600, the second through holes 600, in case relatively rotate between pin block 500 and output shaft; Pin block 500 is sheathed to be matched in the end of output shaft fixed part 114 preferably, and the end of output shaft fixed part 114 just in time can coincide through the second through hole 600.
Again as shown in Figure 2, the present embodiment preferably poroid, the cross section of fixed part 114, the poroid of the second through hole 600 of the first through hole 400 is all that two ends are the Keyway Section shape of round end, in fact, can also be other shape.
Understandably, torsion spring switching mechanism 10 of the present utility model, by the electric motor starting in motor-driven assembly 100, thereby motor output shaft rotates and drives the catch 300 being fixedly connected with it to swing, catch 300 promotes whole torsion spring 200 by the bending part 222 of the first spring arm 220 and rotates thereupon, because the second spring arm 230 of torsion spring 200 can be restricted on locating part 700 in rotation process, thereby before block piece 300 is driven default position, torsion spring 200 can be saved certain torsion thereupon, when block piece 300 is driven default position, complete after the correction of reference system, motor is stall at once, under the twisting force of torsion spring 200, block piece 300 can be promoted reversion original position by bending part 222 automatic reverses thereupon, torsion spring 200 also discharges the energy storing thereupon, thereby whole torsion spring switching mechanism 10 recovers original state, prepare as corrective action next time.
The utility model also provides a kind of thermal infrared imaging camera, and this thermal infrared imaging camera is equipped with above-mentioned torsion spring switching mechanism 10.Understandably, because this thermal infrared imaging camera has been applied above-mentioned torsion spring switching mechanism 10, thereby, greatly save the space of video camera inside, reduce the difficulty of design, also save it and produced debug time.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model.For a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present utility model.
Claims (8)
1. a torsion spring switching mechanism, for the automatic switchover to thermal infrared imaging camera block piece, comprise and be located on a mainframe, provide the motor-driven assembly that switches power for described block piece, the external part of described motor-driven assembly output shaft is fixedly connected with the block piece for proofreading and correct, and it is characterized in that:
On described motor-driven assembly output shaft, be arranged with torsion adjustable and provide the torsion spring of torsion of the playback of automatically switching, described torsion spring to have can to catch on described block piece and drive the first spring arm of swinging and for the second spacing spring arm by this block piece for described block piece.
2. torsion spring switching mechanism as claimed in claim 1, is characterized in that: described mainframe is fixed with at least one locating part that limits described the second spring arm riding position, and each described locating part is around the periphery of the fixed position of described torsion spring.
3. torsion spring switching mechanism as claimed in claim 2, is characterized in that: described the second spring arm, between any two adjacent described locating parts, or is positioned at the outside of the described locating part of the initiating terminal identical with the swaying direction of described block piece.
4. torsion spring switching mechanism as claimed in claim 3, is characterized in that: described locating part is provided with 3, and described the second spring arm is positioned at the outside of locating part described in first on swaying direction.
5. torsion spring switching mechanism as claimed in claim 1, is characterized in that: described output shaft external part has for the sleeved part of sheathed described torsion spring and fixed part for being fixedly connected with described block piece.
6. torsion spring switching mechanism as claimed in claim 5, is characterized in that: described block piece comprise stopper section for blocking, with the connecting portion that described output shaft fixed part is fixedly connected with, described the first spring arm end have can hooking described in the bending part of connecting portion.
7. torsion spring switching mechanism as claimed in claim 6, is characterized in that: described connecting portion offers location notch, and described output shaft external part is provided with and can be placed in described location notch, in order to lock the pin block of described block piece.
8. a thermal infrared imaging camera, is characterized in that: described thermal infrared imaging camera has the torsion spring switching mechanism described in claim 1～7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320750096.4U CN203632755U (en) | 2013-11-22 | 2013-11-22 | Torsional spring switching mechanism and infrared thermal imaging camera with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320750096.4U CN203632755U (en) | 2013-11-22 | 2013-11-22 | Torsional spring switching mechanism and infrared thermal imaging camera with same |
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| CN203632755U true CN203632755U (en) | 2014-06-04 |
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| CN201320750096.4U Expired - Fee Related CN203632755U (en) | 2013-11-22 | 2013-11-22 | Torsional spring switching mechanism and infrared thermal imaging camera with same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959777A (en) * | 2017-11-28 | 2018-04-24 | 浙江大华技术股份有限公司 | A kind of catch switching mechanism and thermal imaging apparatus |
| CN108956516A (en) * | 2018-08-28 | 2018-12-07 | 中国科学院合肥物质科学研究院 | Ultraviolet EO-1 hyperion Atmospheric components survey meter path switching mechanisms |
-
2013
- 2013-11-22 CN CN201320750096.4U patent/CN203632755U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959777A (en) * | 2017-11-28 | 2018-04-24 | 浙江大华技术股份有限公司 | A kind of catch switching mechanism and thermal imaging apparatus |
| CN108956516A (en) * | 2018-08-28 | 2018-12-07 | 中国科学院合肥物质科学研究院 | Ultraviolet EO-1 hyperion Atmospheric components survey meter path switching mechanisms |
| CN108956516B (en) * | 2018-08-28 | 2021-06-01 | 中国科学院合肥物质科学研究院 | Light path switching mechanism of ultraviolet hyperspectral atmospheric composition detector |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20171122 |