CN216978734U

CN216978734U - Aircraft smoke detection tester calibrating device

Info

Publication number: CN216978734U
Application number: CN202122019225.XU
Authority: CN
Inventors: 季伟斌; 沈长江; 郑伟梁; 陆宇
Original assignee: Bangmeng Hongdao Measurement And Testing Xiamen Co ltd
Current assignee: Bangmeng Hongdao Measurement And Testing Xiamen Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-07-15
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses an aircraft smoke detection tester calibrating device, which comprises a calibrating device body arranged on the right side of a light transmittance tester, wherein two probes are arranged on the light transmittance tester, the calibrating device body comprises an L-shaped seat, a movable plate is movably contacted on the right side of the L-shaped seat, placing holes are respectively formed in the right side of the movable plate and the inner wall of the left side of the L-shaped seat, the probes are respectively positioned in the corresponding placing holes, a first anti-skid rubber is fixedly bonded on the inner wall of the bottom of each placing hole, the top of the first anti-skid rubber is movably contacted with the bottom of the corresponding probe, and a threaded press-fixing mechanism is movably contacted with the top of each probe. The utility model has reasonable design, is convenient for fixing the probes and adjusting the position alignment, can effectively avoid the displacement deviation of the probes in the use process, ensures the detection stability, is convenient for automatically and simultaneously wiping and cleaning the two probes, and is convenient for personnel to calibrate.

Description

Aircraft smoke detection tester calibrating device

Technical Field

The utility model relates to the technical field of smoke detection tester calibration equipment, in particular to a calibration device for an aircraft smoke detection tester.

Background

The smoke detection tester is an instrument for detecting smoke concentration, and most of the smoke detection testers on the current aircraft adopt a light transmittance tester to detect smoke, such as application numbers: 201921389457.0, discloses a smoke density testing system of an airplane smoke detector, which comprises a combustion chamber, a smoke shutoff valve, a fan, a light transmittance tester, a fan switch, a smoke shutoff switch and a connecting cable, wherein the light transmittance tester which is relatively easy to be bought in the market is put into a totally black non-reflective smoke chamber, the smoke chamber is put into a fan, the smoke shutoff valve is connected to the combustion chamber, when the system works, the fan switch is opened to start the fan, the smoke shutoff valve is opened by opening the smoke shutoff switch, substances which can generate smoke such as incense and the like in the combustion chamber are sucked into the closed smoke chamber through the suction force of the fan and circulated, the smoke is uniformly dispersed in the smoke chamber by the blowing force of the fan, when the smoke density is observed to reach a set value, the smoke shutoff switch is closed to close the smoke shutoff valve, the smoke is not sucked any more, and whether the light transmittance tester outputs an alarm signal or not is observed, so that the purpose of measurement is achieved;

In the above patent, the measurement of the smoke concentration can be realized by the light transmittance tester, the existing light transmittance tester needs to be calibrated before use, the calibration method is that two probes on the light transmittance tester are aligned, the display value on the display screen of the light transmittance tester is 100%, the transmittance of the light transmittance tester is expressed as hundreds, and the light transmittance tester can be normally used, most of the existing light transmittance testers adopt manual operation to move the two probes to realize alignment operation, after the probes are aligned, the probes are not convenient to fix, further, the detection operation is easy to be influenced by the displacement of the probes in the use process, and in the calibration process, dust on the probes is not convenient to automatically clean, when the two probes are stained with dust impurities, the display value can not be ensured to be 100%, the calibration operation is influenced, the use requirement can not be met, and the above conditions are comprehensively improved, we have therefore proposed an aircraft smoke detection tester calibration device to address the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a calibration device for an aircraft smoke detection tester.

In order to achieve the purpose, the utility model adopts the following technical scheme:

A calibration device of an aircraft smoke detection tester comprises a calibration device body arranged on the right side of a light transmittance tester, two probes are arranged on the light transmittance tester, the calibration device body comprises an L-shaped seat, a movable plate is movably contacted on the right side of the L-shaped seat, placing holes are formed in the right side of the movable plate and the inner wall of the left side of the L-shaped seat, the probes are respectively positioned in the corresponding placing holes, a first anti-slip rubber is fixedly bonded on the inner wall of the bottom of each placing hole, the top of the first anti-slip rubber is movably contacted with the bottom of the corresponding probe, a thread press-fixing mechanism is movably contacted with the top of each probe, the tops of the two thread press-fixing mechanisms respectively extend to the upper part of the L-shaped seat and the upper part of the movable plate, the L-shaped seat and the movable plate are respectively sleeved on the corresponding thread press-fixing mechanisms in a threaded manner, and an automatic wiping mechanism is fixedly arranged on the inner wall of the bottom of the L-shaped seat, the two probes are matched with the automatic wiping mechanism, a moving block is fixedly mounted at the bottom of the left side of the moving plate, a first rectangular groove is formed in the right side of the L-shaped seat, a thread guide mechanism is rotatably mounted between the inner wall of the front side and the inner wall of the rear side of the first rectangular groove, the left side of the moving block extends into the first rectangular groove, the moving block is sleeved on the thread guide mechanism in a threaded manner, a plurality of balls are embedded at the bottom of the moving plate, and the bottoms of the balls are flush with the bottom of the L-shaped seat.

Preferably, the thread pressing and fixing mechanism comprises a pressing plate arranged in the placing hole, a second anti-slip rubber is fixedly bonded to the bottom of the pressing plate, the bottom of the second anti-slip rubber is in close contact with the top of the corresponding probe, a T-shaped screw is fixedly connected to the top of the pressing plate, the tops of the two T-shaped screws respectively extend to the upper portion of the L-shaped seat and the upper portion of the movable plate, and the L-shaped seat and the movable plate are respectively sleeved on the corresponding T-shaped screws in a threaded manner.

Preferably, the automatic wiping mechanism comprises two wiping plates, one side of each other keeping away from of the two wiping plates is fixedly bonded with a wiping cotton, one side of each other keeping away from of the two wiping cotton is parallel and level with one side of each other being close to the two probes respectively, two first locating rods are fixedly mounted on the bottom inner wall of the L-shaped seat, the wiping plate sliding sleeve is arranged on the corresponding first locating rod, a reciprocating push rod motor is fixedly mounted on the bottom inner wall of the L-shaped seat, a connecting rod is fixedly connected between the tops of one sides of the two wiping plates which are close to each other, the top end of an output shaft of the reciprocating push rod motor is fixedly connected with the left side of the bottom of the connecting rod, a second locating rod is fixedly mounted on the bottom inner wall of the L-shaped seat, a rectangular tube is fixedly connected with the bottom of the connecting rod, and the rectangular tube sliding sleeve is arranged on the locating rod of the second locating rod.

Preferably, the thread guide mechanism comprises a first screw rotatably installed between the front inner wall and the rear inner wall of the first rectangular groove, a moving block is sleeved on the first screw in a threaded manner, the front end of the first screw extends to the front side of the L-shaped seat and is fixedly connected with a knob, a rectangular rod is fixedly connected between the front inner wall and the rear inner wall of the first rectangular groove, a guide sleeve is fixedly connected to the left side of the moving block, and the guide sleeve is slidably sleeved on the rectangular rod.

Preferably, a first threaded hole is formed in the inner wall of the top of the placing hole, and the first threaded hole is in threaded connection with the corresponding T-shaped screw.

Preferably, the bottom end of the wiping plate is provided with a second rectangular groove, and the inner wall of the second rectangular groove is in sliding connection with the outer side of the corresponding first positioning rod.

Preferably, a limiting hole is formed in the inner wall of the right side of the rectangular pipe, a limiting block is fixedly connected to the top of the right side of the second positioning rod, and the limiting block is connected with the limiting hole in a sliding mode.

Preferably, a second threaded hole is formed in the front side of the moving block and is in threaded connection with the first screw, a circular hole is formed in the inner wall of the front side of the first rectangular groove, a first bearing is fixedly sleeved in the circular hole, a second bearing is fixedly connected to the inner wall of the rear side of the first rectangular groove, and the inner side of an inner ring of the first bearing and the inner side of an inner ring of the second bearing are fixedly connected with the outer side of the first screw.

Compared with the prior art, the utility model has the beneficial effects that:

through a light transmittance tester, probes, an L-shaped seat, a movable plate, a placing hole, a pressure plate, T-shaped screws, a first rectangular groove, a first screw, a guide sleeve, a rectangular rod, a wiping plate, a connecting rod, a reciprocating push rod motor, a first positioning rod, a second positioning rod, a rectangular tube, wiping cotton and a movable block, during calibration, the two probes are respectively inserted into the corresponding placing holes, one sides of the two probes, which are close to each other, are respectively flush with one sides of the two wiping cotton, which are away from each other, the two T-shaped screws are respectively rotated and moved downwards in the corresponding first threaded holes by forward rotation, the T-shaped screws drive the corresponding pressure plate and the second anti-skid rubber to downwards press and fix the probes, the reciprocating push rod motor is then started to drive the connecting rod to reciprocate, the connecting rod drives the two wiping plates and the two wiping cotton to reciprocate to wipe the end parts of the two probes, after the wiping is completed, the reciprocating push rod motor is stopped, the light transmittance tester is turned on at the moment, the numerical values displayed on the display screen are watched, when the numerical values displayed on the display screen are 100%, the two probes are proved to be in an aligned state, when the displayed values have deviations, the two probes are proved to have position deviations, the front and back positions of the probes on the right side in the two probes need to be adjusted, the rotary knob drives the first screw to rotate, the first screw rotates to drive the moving block to move forwards or backwards, the moving block drives the probes on the right side to move forwards or backwards through the moving block, when the numerical values displayed on the display screen are observed to be 100%, the two probes are proved to be in an aligned state, and then the calibration operation is completed.

The utility model has reasonable design, is convenient for fixing the probes and adjusting the position alignment, can effectively avoid the displacement deviation of the probes in the use process, ensures the detection stability, is convenient for automatically and simultaneously wiping and cleaning the two probes, and is convenient for personnel to calibrate.

Drawings

Fig. 1 is a schematic structural diagram of an aircraft smoke detection tester calibration device according to the present invention;

fig. 2 is an enlarged sectional view of a portion a of fig. 1.

In the figure: 100 luminousness tester, 101 probe, 1L shape seat, 2 movable plates, 3 place the hole, 4 clamp plates, 5T shape screw rods, 6 first rectangular channel, 7 first screw rods, 8 uide bushing, 9 rectangular rod, 10 clean board, 11 connecting rods, 12 reciprocal push rod motors, 13 first locating levers, 14 second locating levers, 15 rectangular tubes, 16 clean cotton, 17 movable blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, an aircraft smoke detection tester calibration device comprises a calibration device body arranged on the right side of a light transmittance tester 100, two probes 101 are arranged on the light transmittance tester 100, the calibration device body comprises an L-shaped seat 1, a movable plate 2 is movably contacted with the right side of the L-shaped seat 1, placing holes 3 are respectively arranged on the right side of the movable plate 2 and the inner wall of the left side of the L-shaped seat 1, the probes 101 are respectively positioned in the corresponding placing holes 3, a first anti-skid rubber sheet is fixedly bonded on the inner wall of the bottom of the placing holes 3, the top of the first anti-skid rubber sheet is movably contacted with the bottom of the corresponding probe 101, a thread press-fixing mechanism is movably contacted with the top of the probe 101, the top of the two thread press-fixing mechanisms respectively extend to the upper side of the L-shaped seat 1 and the upper side of the movable plate 2, the L-shaped seat 1 and the movable plate 2 are respectively sleeved on the corresponding thread press-fixing mechanisms, an automatic wiping mechanism is fixedly installed on the inner wall of the bottom of the L-shaped seat 1, the two probes 101 are matched with the automatic wiping mechanism, a moving block 17 is fixedly installed at the bottom of the left side of the moving plate 2, a first rectangular groove 6 is formed in the right side of the L-shaped seat 1, a thread guide mechanism is rotatably installed between the inner wall of the front side and the inner wall of the rear side of the first rectangular groove 6, the left side of the moving block 17 extends into the first rectangular groove 6, the moving block 17 is sleeved on the thread guide mechanism in a threaded manner, a plurality of balls are embedded in the bottom of the moving plate 2, and the bottoms of the balls are flush with the bottom of the L-shaped seat 1;

The thread pressing and fixing mechanism comprises a pressing plate 4 arranged in the placing hole 3, a second anti-skid rubber is fixedly bonded to the bottom of the pressing plate 4, the bottom of the second anti-skid rubber is tightly contacted with the top of the corresponding probe 101, the top of the pressing plate 4 is fixedly connected with a T-shaped screw 5, the tops of the two T-shaped screws 5 respectively extend to the upper part of the L-shaped seat 1 and the upper part of the movable plate 2, and the L-shaped seat 1 and the movable plate 2 are respectively sleeved on the corresponding T-shaped screws 5 in a threaded manner;

the automatic wiping mechanism comprises two wiping plates 10, wiping cotton 16 is fixedly bonded on one side, away from each other, of each wiping plate 10, one side, away from each other, of each wiping cotton 16 is flush with one side, close to each other, of each probe 101, two first positioning rods 13 are fixedly mounted on the inner wall of the bottom of the L-shaped seat 1, the wiping plates 10 are slidably sleeved on the corresponding first positioning rods 13, a reciprocating push rod motor 12 is fixedly mounted on the inner wall of the bottom of the L-shaped seat 1, a connecting rod 11 is fixedly connected between the tops of the sides, close to each other, of the two wiping plates 10, the top end of an output shaft of the reciprocating push rod motor 12 is fixedly connected with the left side of the bottom of the connecting rod 11, a second positioning rod 14 is fixedly mounted on the inner wall of the bottom of the L-shaped seat 1, a rectangular tube 15 is fixedly connected to the bottom of the connecting rod 11, and the rectangular tube 15 is slidably sleeved on the second positioning rod 14;

The thread guide mechanism comprises a first screw 7 rotatably installed between the front side inner wall and the rear side inner wall of a first rectangular groove 6, a moving block 17 is sleeved on the first screw 7 in a threaded mode, the front end of the first screw 7 extends to the front side of an L-shaped seat 1 and is fixedly connected with a knob, a rectangular rod 9 is fixedly connected between the front side inner wall and the rear side inner wall of the first rectangular groove 6, a guide sleeve 8 is fixedly connected to the left side of the moving block 17, and the guide sleeve 8 is sleeved on the rectangular rod 9 in a sliding mode.

In the utility model, the inner wall of the top of a placing hole 3 is provided with a first threaded hole which is in threaded connection with a corresponding T-shaped screw 5, the bottom end of a wiping plate 10 is provided with a second rectangular groove, the inner wall of the second rectangular groove is in sliding connection with the outer side of a corresponding first positioning rod 13, the inner wall of the right side of a rectangular tube 15 is provided with a limiting hole, the top of the right side of a second positioning rod 14 is fixedly connected with a limiting block which is in sliding connection with the limiting hole, the front side of a moving block 17 is provided with a second threaded hole which is in threaded connection with a first screw 7, the inner wall of the front side of a first rectangular groove 6 is provided with a circular hole, a first bearing is fixedly sleeved in the circular hole, the inner wall of the rear side of the first rectangular groove 6 is fixedly connected with a second bearing, the inner side of an inner ring of the first bearing and the inner side of the inner ring of the second bearing are both fixedly connected with the outer side of the first screw 7, the utility model has reasonable design, be convenient for fix probe 101 and carry out the position alignment regulation, can effectually avoid probe 101 displacement deviation to appear in the use, guarantee to detect stability, and be convenient for automatically to two probe 101 clean the clearance simultaneously, make things convenient for personnel's calibration operation.

The working principle is as follows: when the device is used, at the moment, the two probes 101 are both positioned in the corresponding placing holes 3, during calibration, the two probes 101 are respectively inserted into the corresponding placing holes 3, one side, close to each other, of each probe 101 is flush with one side, far away from each other, of each wiping cotton 16, the two T-shaped screws 5 are then rotated in the forward direction, the T-shaped screws 5 rotate in the corresponding first threaded holes and move downwards, the T-shaped screws 5 drive the corresponding pressing plates 4 to move downwards, the pressing plates 4 drive the corresponding second anti-skid rubber sheets to downwards fix the probes 101, then the reciprocating push rod motor 12 is started, the output shaft of the reciprocating push rod motor 12 drives the connecting rod 11 to reciprocate upwards and downwards, the connecting rod 11 drives the two wiping plates 10 to reciprocate upwards and downwards on the corresponding first positioning rods 13, the connecting rod 11 drives the rectangular tube 15 to reciprocate upwards and downwards on the second positioning rod 14, the wiping plates 10 drive the corresponding wiping cotton 16 to reciprocate upwards and downwards while moving upwards and downwards, after the wiping is finished, when the wiping plate 10 drives the corresponding wiping cotton 16 to move downwards and reset, the reciprocating push rod motor 12 can be stopped, the light transmittance tester 100 is opened at the moment, a numerical value displayed on a display screen is watched, when the numerical value displayed on the display screen is 100%, the two probes 101 are proved to be in an aligned state, and when a display value has a deviation, the two probes 101 are proved to have a position deviation, and because the placing heights of the probes 101 are the same, the vertical deviation can not occur, and only the front and back deviation can occur;

When the front and back positions of the right probe 101 in the two probes 101 need to be adjusted, the knob is rotated to drive the first screw 7 to rotate, under the action of the second threaded hole formed in the moving block 17, the first screw 7 rotates to drive the moving block 17 to move forwards or backwards, the moving block 17 drives the guide sleeve 8 to move forwards or backwards on the rectangular rod 9, the moving block 17 drives the moving plate 2 to move forwards or backwards, the moving plate 2 drives the right probe 101 to move forwards or backwards through the right first anti-skid rubber sheet, the treatment displayed on the display screen is observed in the adjusting process, when the numerical value displayed on the display screen is 100%, the two probes 101 are proved to be in an aligned state, the calibration operation is further completed, the probes 101 are conveniently fixed and adjusted in a position aligning manner, the displacement deviation of the probes 101 in the using process can be effectively avoided, and the detection stability is ensured, and the two probes 101 can be automatically and simultaneously cleaned, so that the calibration operation of personnel is facilitated.

In the description of the present application, it should be noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected" and "connected" should be construed broadly, and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediary, and a communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the utility model concepts of the present invention in the scope of the present invention.

Claims

1. The aircraft smoke detection tester calibration device comprises a calibration device body arranged on the right side of a light transmittance tester (100), wherein two probes (101) are arranged on the light transmittance tester (100), the calibration device body comprises an L-shaped seat (1), and the aircraft smoke detection tester calibration device is characterized in that a movable plate (2) is movably contacted on the right side of the L-shaped seat (1), placing holes (3) are respectively formed in the right side of the movable plate (2) and the inner wall of the left side of the L-shaped seat (1), the probes (101) are respectively positioned in the corresponding placing holes (3), a first anti-skid rubber is fixedly bonded on the inner wall of the bottom of the placing holes (3), the top of the first anti-skid rubber is movably contacted with the bottom of the corresponding probe (101), a thread press-fixing mechanism is movably contacted with the top of the probe (101), the tops of the two thread press-fixing mechanisms respectively extend to the upper part of the L-shaped seat (1) and the upper part of the movable plate (2), l shape seat (1) and movable plate (2) threaded sleeve respectively press solid mechanism at the screw that corresponds, fixed mounting has automatic wiping mechanism on the bottom inner wall of L shape seat (1), two probes (101) all cooperate with automatic wiping mechanism, the left side bottom fixed mounting of movable plate (2) has movable block (17), first rectangular channel (6) have been seted up on the right side of L shape seat (1), rotate between the front side inner wall of first rectangular channel (6) and the rear side inner wall and install screw guide mechanism, extend to in first rectangular channel (6) in the left side of movable block (17), movable block (17) threaded sleeve is established on screw guide mechanism, the bottom of movable plate (2) is inlayed and is equipped with a plurality of balls, the bottom parallel and level of ball and the bottom of L shape seat (1).

2. The aircraft smoke detection tester calibration device according to claim 1, wherein the thread pressing and fixing mechanism comprises a pressing plate (4) arranged in the placing hole (3), a second anti-slip rubber sheet is fixedly bonded to the bottom of the pressing plate (4), the bottom of the second anti-slip rubber sheet is in close contact with the top of the corresponding probe (101), a T-shaped screw (5) is fixedly connected to the top of the pressing plate (4), the tops of the two T-shaped screws (5) respectively extend to the upper portion of the L-shaped seat (1) and the upper portion of the movable plate (2), and the L-shaped seat (1) and the movable plate (2) are respectively in threaded sleeve connection with the corresponding T-shaped screw (5).

3. The aircraft smoke detection tester calibration device according to claim 1, wherein the automatic wiping mechanism comprises two wiping plates (10), wiping cotton (16) is fixedly bonded to the sides of the two wiping plates (10) far away from each other, the sides of the two wiping cotton (16) far away from each other are respectively flush with the sides of the two probes (101) close to each other, two first locating rods (13) are fixedly mounted on the inner bottom wall of the L-shaped seat (1), the wiping plates (10) are slidably sleeved on the corresponding first locating rods (13), a reciprocating push rod motor (12) is fixedly mounted on the inner bottom wall of the L-shaped seat (1), a connecting rod (11) is fixedly connected between the tops of the two wiping plates (10) close to each other, and the top end of an output shaft of the reciprocating push rod motor (12) is fixedly connected with the left bottom of the connecting rod (11), a second positioning rod (14) is fixedly arranged on the inner wall of the bottom of the L-shaped seat (1), a rectangular tube (15) is fixedly connected to the bottom of the connecting rod (11), and the rectangular tube (15) is slidably sleeved on the second positioning rod (14).

4. The aircraft smoke detection tester calibration device according to claim 1, wherein the thread guide mechanism comprises a first screw (7) rotatably installed between the front inner wall and the rear inner wall of the first rectangular groove (6), a moving block (17) is sleeved on the first screw (7) in a threaded manner, the front end of the first screw (7) extends to the front side of the L-shaped seat (1) and is fixedly connected with a knob, a rectangular rod (9) is fixedly connected between the front inner wall and the rear inner wall of the first rectangular groove (6), a guide sleeve (8) is fixedly connected to the left side of the moving block (17), and the guide sleeve (8) is slidably sleeved on the rectangular rod (9).

5. The aircraft smoke detection tester calibration device according to claim 2, wherein a first threaded hole is formed in the inner wall of the top of the placing hole (3), and the first threaded hole is in threaded connection with the corresponding T-shaped screw (5).

6. The aircraft smoke detection tester calibration device according to claim 3, wherein the bottom end of the wiping plate (10) is provided with a second rectangular groove, and the inner wall of the second rectangular groove is slidably connected with the outer side of the corresponding first positioning rod (13).

7. The aircraft smoke detection tester calibration device according to claim 3, wherein a limiting hole is formed in the inner wall of the right side of the rectangular tube (15), a limiting block is fixedly connected to the top of the right side of the second positioning rod (14), and the limiting block is connected with the limiting hole in a sliding mode.

8. The aircraft smoke detection tester calibration device according to claim 4, wherein a second threaded hole is formed in the front side of the moving block (17), the second threaded hole is in threaded connection with the first screw (7), a circular hole is formed in the inner wall of the front side of the first rectangular groove (6), a first bearing is fixedly sleeved in the circular hole, a second bearing is fixedly connected to the inner wall of the rear side of the first rectangular groove (6), and the inner side of the inner ring of the first bearing and the inner side of the inner ring of the second bearing are both fixedly connected with the outer side of the first screw (7).