CN208224196U - Gas-detecting device and detection system - Google Patents
Gas-detecting device and detection system Download PDFInfo
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- CN208224196U CN208224196U CN201820491845.9U CN201820491845U CN208224196U CN 208224196 U CN208224196 U CN 208224196U CN 201820491845 U CN201820491845 U CN 201820491845U CN 208224196 U CN208224196 U CN 208224196U
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Abstract
The utility model provides a kind of gas-detecting device and detection system, comprising: detector, the first directive wheel, elevator part, elevator axis and driving device；Elevator part is wound around on the first directive wheel, and one end of elevator part is connect with detector, the other end and elevator axis connection of elevator part；Driving device and elevator axis connection；Detector is used to detect the concentration of fuel gas in workshop；By connecting the first directive wheel rotatably with crossbeam, elevator part is wound around on the first directive wheel, and one end of elevator part is connect with detector, and the other end and elevator axis connection of elevator part, driving device is for driving elevator axis to rotate, to furl or discharge elevator part；When detector breaks down, the rotation of elevator axis can be driven by driving device, and then discharge elevator part, so that detector moves to the ground, it is easy to operate and safe convenient for the maintenance and replacement to detector to reduce the height of detector.
Description
Technical field
The utility model relates to gas detection technology field more particularly to a kind of gas-detecting device and detection systems.
Background technique
When chemical plant produces chemical products, certain fuel gas can be often volatilized, such as: methane, hydrogen etc., volatilization
When the concentration of fuel gas in workshop is reached to a certain degree, it is easy to happen explosion；Therefore how in real-time detection workshop
Combustable gas concentration to avoid danger and have become a hot topic of research.
In the prior art, combustible-gas detector is often set in workshop, to detect the concentration of the fuel gas in workshop.
Crossbeam is provided at the top of workshop, crossbeam is used to carry the ceiling of workshop.Since the density of fuel gas is generally less than sky
The density of gas, therefore combustible-gas detector is connect with crossbeam and is arranged in ceiling lower part by fastening bolt.Fuel gas
Detector is connect by conducting wire with indoor controller is controlled, so as to the combustable gas concentration for detecting combustible-gas detector
It is delivered in controller, so that staff checks.
However, in the prior art, combustible-gas detector between ground at a distance from farther out, when breaking down, staff
Ladder need to be set up on the ground, and then combustible-gas detector is repaired or replaced, operation is more difficult and risk compared with
Greatly.
Utility model content
The utility model provides a kind of gas-detecting device and detection system, to solve combustible gas physical examination in the prior art
Survey device between ground at a distance from farther out, when breaking down, staff need to set up ladder on the ground, and then to combustible gas physical examination
It surveys device to be repaired or replaced, the more difficult and larger risk technical problem of operation.
The utility model provides a kind of gas-detecting device, comprising: detector, the first directive wheel, elevator part, elevator axis with
And driving device；First directive wheel is rotatably connect with crossbeam, and the elevator part is wound around on first directive wheel,
One end of the elevator part is connect with the detector, the other end of the elevator part and the elevator axis connection；The driving
Device and the elevator axis connection, for driving the elevator axis to rotate, to furl or discharge the elevator part；The detector
For detecting the concentration of fuel gas in workshop.
Gas-detecting device as described above, it is preferable that the gas-detecting device further includes locking device；The elevator
Axis is located at the lower part of the wall for rotatably connecting with the wall of workshop；The locking device is used in retracting institute
The elevator axis is locked after stating elevator part, to prevent the elevator from axially releasing the direction rotation of the elevator part.Elevator axle position
In the lower section of workshop wall, in order to the installation and maintenance of elevator axis；In addition, locking device can lock after furling elevator part
Elevator axis, in order to avoid and then make on elevator axis because elevator caused by detector gravity is excessive axially releases the direction rotation of elevator part
Elevator part release winding, detector moves to the ground.
Gas-detecting device as described above, it is preferable that the locking device includes ratchet and pawl；The ratchet with
The elevator axis connection, the pawl are rotatably connect with the wall；The pawl after furling the elevator part with institute
State ratchet engagement.It is engaged by ratchet with pawl to realize the locking to elevator axis, locking is secured, and structure is simple.
Gas-detecting device as described above, it is preferable that the driving device includes actuating arm, and the actuating arm includes mutual
The first segment and second segment of parallel setting and with the vertically disposed third section of the first segment, one end of the first segment
Be sequentially connected with the elevator axis, the other end of the first segment connect with one end of the third section, the third section it is another
One end is connect with one end of the second segment.The rotation of elevator axis can be driven by rocking-turn second segment, it is easy to operate.
Gas-detecting device as described above, it is preferable that the gas-detecting device further includes the second directive wheel, and described
Two directive wheels are rotatably connect with the upper end of the wall；The elevator part is wound around on second directive wheel.It can make
Elevator part is arranged along the direction for being parallel to metope, in order to avoid elevator part is tilted and then contacted with the other equipment in manufacturer, influences
The movement of elevator part.
Gas-detecting device as described above, it is preferable that the gas-detecting device further include: movable stand and third are led
To wheel；The detector is arranged on the movable stand, and the third directive wheel is rotatably connect with the crossbeam；The volume
It raises part and includes the first lift rope, the second lift rope and third lift rope, one end of first lift rope and the elevator axis
Connection, first lift rope are wound around on second directive wheel, the other end and the volume Two of first lift rope
Rope front end is raised to connect with the front end of the third lift rope；Second lift rope is wound around on first directive wheel and institute
The rear end for stating the second lift rope is connect with one end of the movable stand；The third lift rope is wound around the third directive wheel
The rear end of the upper and described third lift rope is connect with the other end of the movable stand.Third lift rope and the second lift rope difference
It is connect with the both ends of movable stand, movable stand and detector can be prevented to swing, in case the flowing of air or crossbeam shake, so that
Movable stand and detector are swung, the combustable gas concentration value inaccuracy for causing detector to detect.
Gas-detecting device as described above, it is preferable that stopper posts are provided on the movable stand, the stopper posts are used for
It is extremely supported on the ceiling in limited time in the movable stand to the cross beam movement.In order to avoid movable stand and the first directive wheel and third
Directive wheel contact, and then it is bad to avoid movable stand from knocking the first directive wheel or third directive wheel.
Gas-detecting device as described above, it is preferable that first lift rope, the second lift rope and third lift rope
It is wirerope.The intensity of wirerope is higher, and corrosion resistance is preferable, and service life is longer.
Gas-detecting device as described above, it is preferable that the gas-detecting device further includes fixed column, the fixed column
One end for connect with ceiling, the fixed column is perpendicular to horizontal plane setting；The detector is used for through conducting wire and control
Device connection processed, the conducting wire includes linkage section, free segment and the fixed section between the linkage section and the free segment, institute
State linkage section and be electrically connected connection with the controller, the free segment is electrically connected with the detector, the fixed section with it is described
Fixed column connection.Fixed section is connected in fixed column, when movable stand is mobile, only drives free segment mobile, can be to avoid entire
Conducting wire is all moved together with movable stand, so that conducting wire is contacted with the other equipment in workshop.
The utility model also provides a kind of detection system, comprising: controller and gas-detecting device as described above, institute
Gas-detecting device is stated to be electrically connected with the controller.
Gas-detecting device provided by the utility model and detection system, by making the first directive wheel rotatably and crossbeam
Connection, elevator part are wound around on the first directive wheel, and one end of elevator part is connect with detector, the other end and elevator axis of elevator part
Connection, driving device is for driving elevator axis to rotate, to furl or discharge elevator part；When detector breaks down, Ke Yitong
Over-driving device drives the rotation of elevator axis, and then discharges elevator part, so that detector moves to the ground, to reduce the height of detector
Degree, it is easy to operate and safe convenient for the maintenance and replacement to detector.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is that gas-detecting device provided by the embodiment of the utility model furls the structural schematic diagram after elevator part；
Fig. 2 is that gas-detecting device provided by the embodiment of the utility model discharges the structural schematic diagram after elevator part；
Fig. 3 is the structural schematic diagram of actuating arm in Fig. 1.
Description of symbols:
1, detector；
2, the first directive wheel；
3, elevator part；
4, crossbeam；
5, wall；
6, actuating arm；
7, the second directive wheel；
8, third directive wheel；
9, the 4th directive wheel；
10, movable stand；
11, stopper posts；
12, fixed column；
13, conducting wire；
301, the first lift rope；
302, the second lift rope；
303, third lift rope；
601, first segment；
602, second segment；
603, third section；
1301, linkage section；
1302, fixed section；
1303, free segment；
6011, protrusion.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.In the absence of conflict, the feature in following embodiment and embodiment can be mutual group
It closes.
In the utility model embodiment, unless otherwise specific regulation, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to removably connect, or be integrally formed, can
To be mechanical connection, it is also possible to be electrically connected or can communicate each other；It can be directly connected, it can also be by between intermediate medium
It connects in succession, can be the connection inside two elements or the interaction relationship of two elements, unless otherwise restricted clearly.
For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
Fig. 1 is that gas-detecting device provided by the embodiment of the utility model furls the structural schematic diagram after elevator part；Fig. 2 is
Structural schematic diagram after gas-detecting device release elevator part provided by the embodiment of the utility model；Fig. 3 is actuating arm in Fig. 1
Structural schematic diagram.
Please refer to Fig. 1-Fig. 3.The present embodiment provides a kind of gas-detecting devices, comprising: detector 1, the first directive wheel 2,
Elevator part 3, elevator axis and driving device；For first directive wheel 2 for rotatably connecting with crossbeam 4, elevator part 3 is wound around the
On one directive wheel 2, one end of elevator part 3 is connect with detector 1, the other end and elevator axis connection of elevator part 3；Driving device with
Elevator axis connection, for driving elevator axis to rotate, to furl or discharge elevator part 3；Detector 1 is for detecting combustible gas in workshop
The concentration of body.
Detector 1 can be able to detect the device of the combustable gas concentration in workshop for any one, and the present embodiment is to spy
Survey device 1 with no restrictions, such as: detector 1 may include platinum filament and resistor detecting device, and resistor detecting device is electrically connected with platinum filament
It connects；By making fuel gas that oxidation reaction occur on platinum filament, and then increase the temperature of platinum filament, resistance detection fills at the same time
The variation that can detecte out resistance value caused by platinum filament changes because of temperature is set, and then is obtained by the variable quantity of analysis resistance value
The concentration of fuel gas；In addition, alarm can be set on detector 1, alarm is electrically connected with resistor detecting device, when flammable
When the concentration of gas reaches preset value, driving alarm is sounded an alarm, and to remind staff, avoids that accident occurs.
Specifically, the present embodiment to preset value with no restrictions, as long as guarantee fuel gas concentration be lower than preset value, no
It is dangerous that explosion etc. can occur.
Crossbeam 4 is used to carry the ceiling of workshop, the beams of metal or crossbeam 4 that crossbeam 4 is generally made of cast iron or steel by
The timber beam that timber is constituted.First directive wheel 2 includes wheel body, and the axis hole of own centre line and wheel body axis collinear is arranged on wheel body,
Shaft is provided on crossbeam 4, shaft is threaded through in axis hole, to realize being rotatably connected between the first directive wheel 2 and crossbeam 4；
Preferably, rolling bearing is provided in axis hole, the inner ring of rolling bearing is connect with shaft, the outer ring of rolling bearing and axis hole
Side wall connection, to reduce the frictional force between shaft and axis hole.Alternatively, the first directive wheel 2 includes wheel body and is arranged in wheel body
The axis of first fixing axle and the second fixing axle at both ends, the first fixing axle and the second fixing axle is set with the axis collinear of wheel body
It sets；Correspondingly, the first fixed shaft hole and the second fixed shaft hole are offered on crossbeam 4, the first fixing axle and the second fixing axle difference
It is threaded through in the first fixed shaft hole and the second fixed shaft hole；Preferably, it is all provided in the first fixed shaft hole and the second fixed shaft hole
It is equipped with rolling bearing.
Elevator part 3 can be a variety of in the present embodiment, such as: elevator part 3 includes iron chains, and one end of iron chains can pass through card
Connect perhaps bolted mode connect with the shell of detector 1 so as to repair or replace detector 1 when, by detector 1
By being disassembled on iron chains；The other end of iron chains is connect with the side wall of elevator axis by welding or bolted mode, with
Just when elevator axis rotates, iron chains be can wind on elevator axis, to realize the retracting of elevator part 3.Or elevator part 3 includes steel
One end of band, steel band is connect with detector 1, and the other end and elevator axis connection of steel band, in the rotation of elevator axis, iron chains can be twined
On elevator axis, detector 1 is moved up at the same time.
Driving device can be a variety of in the present embodiment, as long as elevator axis can be driven to rotate；Such as: driving device
Including driving motor, the main-shaft axis of driving motor and the axis collinear of elevator axis are arranged, and the axis of elevator axis is led with first
Axis to wheel 2 is parallel, and the main shaft of driving motor is connect by shaft coupling with one end of elevator axis；Driving motor by bolt with
Crossbeam 4 connects；Elevator can be driven axially to furl the direction rotation of elevator part 3 when driving motor work, and then make elevator part 3
It is wrapped on elevator axis；Preferably, driving motor is connected to power supply by conducting wire 13, switch is provided on conducting wire 13, by opening
Pass can control driving motor electrification or power-off；Preferably, switch setting is on the ground or in control room, in order to the people that works
Member's operation.In certain the present embodiment, wall 5 is arranged in also to connect with the wall 5 of factory in driving motor and elevator axis
Lower part.
It is further preferred that driving motor can be stepper motor, there is braking moment when stepper motor powers off, can hinder
Only elevator axis rotates；To rotate in the direction that driving elevator axially furls elevator part 3 and then to furl elevator part 3, and make to visit
After survey device 1 is moved a certain distance to crossbeam 4, elevator is prevented to axially release the direction rotation of elevator part 3；It is inputted additionally by control
Driving signal in stepper motor can control the rotational angle of stepper motor, and then accurately control detector 1 and ground
Between distance.
Due to processing heterogeneity chemical products when, the type of the fuel gas volatilized is different, and variety classes
Fuel gas density it is different so that different fuel gas can concentrate in workshop in the space of different height, at this point, can
With by stepper motor adjust detector 1 between ground at a distance from so that detector 1 be in fuel gas concentration position, guarantor
The accuracy that detector 1 obtains data is demonstrate,proved.
The course of work of gas-detecting device provided in this embodiment are as follows: the rotation of elevator axis is driven by driving device, into
And it is wound into elevator part 3 on elevator axis, at the same time, the direction from the ground of supporting or opposing of detector 1 is mobile, when detector 1 rises
When to position where fuel gas, control elevator axis stops operating, and detector 1 detects the concentration of fuel gas；When detector 1
When breaking down, control driving device driving elevator axially releases the direction rotation of elevator part 3, so that the elevator part on elevator axis
3 release winding, and at the same time, detector 1 moves to the ground, to reduce the height of detector 1.
Gas-detecting device provided in this embodiment, by connecting the first directive wheel 2 rotatably with crossbeam 4, elevator
Part 3 is wound around on the first directive wheel 2, and one end of elevator part 3 is connect with detector 1, and the other end and elevator axis of elevator part 3 connect
It connects, driving device is for driving elevator axis to rotate, to furl or discharge elevator part 3；When detector 1 breaks down, Ke Yitong
Over-driving device drives the rotation of elevator axis, and then discharges elevator part 3, so that detector 1 moves to the ground, to reduce detector 1
Height, it is easy to operate and safe convenient for the maintenance and replacement to detector 1.
Specifically, gas-detecting device provided in this embodiment further includes locking device；Elevator axis is rotatably and workshop
Wall 5 connect, and be located at wall 5 lower part；Locking device is used to lock elevator axis after furling elevator part 3, to prevent to roll up
Raise the direction rotation for axially releasing elevator part 3.Elevator axle position is in the lower section of workshop wall 5, in order to the installation and dimension of elevator axis
It repairs；In addition, locking device can lock elevator axis after furling elevator part 3, so as not to because 1 gravity of detector it is excessive caused by elevator
The direction rotation of elevator part 3 is axially released, and then the elevator part 3 on elevator axis is made to release winding, detector 1 moves to the ground.
Preferably, it is provided with mounting rack on wall 5, the first mounting hole and the second mounting hole are provided on mounting rack, rolls up
The both ends for raising axis are threaded through respectively in the first mounting hole and the second mounting hole, to realize the company of can be rotated between elevator axis and wall 5
It connects；Alternatively, being provided with installation axle on mounting rack, and one end of installation axle is connect with mounting rack, center is offered on elevator axis
The mounting hole of line and elevator axis axis collinear, installation axle are threaded through in mounting hole.It is further preferred that the axis of elevator axis can be with
It is arranged in parallel with wall 5 or is arranged perpendicular to wall 5, the axis of certain elevator axis can also have certain between wall 5
Angle.
When driving device is driving motor, the main shaft of driving motor can be connected by one end of shaft coupling and elevator axis
It connects；Alternatively, first gear is arranged on the main shaft of driving motor, second gear, first gear and the second tooth are set on elevator axis
Wheel engagement, to realize the transmission connection of driving motor Yu elevator between centers, and the biography by changing first gear and second gear
Dynamic ratio, the velocity of rotation of elevator axis when adjustable motor works, and then adjust the movement speed of detector 1.
Specifically, the locking device in the present embodiment can there are many, such as: locking device includes locking bolt, is being pacified
It shelves and is provided with locking screw thread hole, locking bolt is threaded through in locking screw thread hole；After furling elevator part 3, pass through rotation lock
Determine bolt, so that locking bolt is supported on elevator axis, elevator is prevented by the frictional force between locking bolt and elevator axis
Axis rotation, and then realize the locking to elevator axis.
Specifically, locking device includes ratchet and pawl；Ratchet and elevator axis connection, pawl rotatably with wall 5
Connection；Pawl after furling elevator part 3 with ratchet for engaging, to prevent elevator from axially releasing the direction rotation of elevator part 3.It is logical
It crosses ratchet to be engaged with pawl to realize the locking to elevator axis, locking is secured, and structure is simple.
Preferably, ratchet is connect with one end of elevator axis by welding or bolted mode, and the axis of ratchet
The axis collinear of line and elevator axis is arranged；Articulated shaft is provided on pawl, articulated shaft is threaded through in the hinge hole on wall 5.When
After retracting elevator part 3 is so that detector 1 moves up a distance, pawl is pulled, so that pawl is engaged with ratchet, and then locking
Elevator axis.It is further preferred that locking device further includes connecting by one end of pressing spring with pawl, by pressing spring by pressing spring
The other end connect with wall 5, by pressing spring for driving pawl to ratchet wheel, and then engage pawl with ratchet；When to
When furling the direction rotation elevator axis of elevator part 3, pawl can be by streaking, after furling elevator part 3, in detector on the outside of ratchet
Under 1 gravity, elevator axially releases the direction rotation of elevator part 3, and at the same time, pawl is engaged with ratchet to realize to volume
Raise the locking of axis.
With continued reference to Fig. 3.Specifically, driving device includes actuating arm 6, and actuating arm 6 includes first be disposed in parallel relation to one another
It section 601 and second segment 602 and is passed with the vertically disposed third section 603 of first segment 601, one end of first segment 601 and elevator axis
Dynamic connection, the other end of first segment 601 are connect with one end of third section 603, the other end and the second segment 602 of third section 603
One end connection.The rotation of elevator axis can be driven by rocking-turn second segment 602, it is easy to operate.
Preferably, the both ends of third section 603 can be connect with first segment 601 and second segment 602 by welding, or
Person's third section 603 is integrally formed by way of casting with first segment 601 and second segment 602.First segment 601 can pass through welding
Mode and elevator axis connection or first segment 601 pass through shaft coupling and elevator axis connection；In addition, can be set on first segment 601
Protrusion 6011 is set, correspondingly, being provided with spliced eye, and the axis of the center line of spliced eye and elevator axis in one end of elevator axis
Line is collinearly arranged, and offers sliding slot on the side wall of spliced eye；First segment 601 is plugged in spliced eye, and protrusion 6011
It is arranged in sliding slot, and then realizes the transmission connection between first segment 601 and elevator axis, so as to when not in use, by actuating arm 6
By disassembling on elevator axis, external object is avoided to contact with actuating arm 6, caused elevator axis rotation, so that the position of detector 1
It sets and changes.
It is further preferred that casing is arranged on second segment 602, and casing is rotatably connect with second segment 602, work
Make personnel by holding casing come rocking-turn actuating arm 6, and then avoids in rocking-turn actuating arm 6,602 friction operation personnel of second segment
Hand.
The use process of gas-detecting device provided in this embodiment are as follows: when detection is broken down and is needed repairing or more
When changing detector 1, the first segment 601 of actuating arm 6 need to be plugged in the spliced eye of elevator axis, and protrusion 6011 is sliding to be set to making
In sliding slot；Pull pawl, and then be disengaged from pawl with ratchet, discharged elevator axis, at the same time hold casing and
Rocking-turn turns second segment 602, so that actuating arm 6 drives elevator to axially release the direction rotation of elevator part 3, and then makes on elevator axis
Elevator part 3 releases winding；Detector 1 moves to the ground at the same time, until under detector 1 and ground face contact or detector 1
It is down to the position convenient for staff's operation；At this point, release pawl locks elevator axis so that pawl is engaged with ratchet.
With continued reference to Fig. 1 and Fig. 2.Specifically, gas-detecting device further includes the second directive wheel 7, and the second directive wheel 7 can turn
Dynamic connect with the upper end of the wall 5；Elevator part 3 is wound around on the second directive wheel 7.Elevator part 3 can be made along being parallel to
The direction of metope is arranged, in order to avoid elevator part 3 is tilted and then contacted with the other equipment in manufacturer, influences the movement of elevator part 3.
With continued reference to Fig. 1 and Fig. 2.Specifically, gas-detecting device further include: movable stand 10 and third directive wheel 8；It visits
It surveys device 1 to be arranged on movable stand 10, third directive wheel 8 is rotatably connect with crossbeam 4；Elevator part 3 includes the first lift rope
301, the second lift rope 302 and third lift rope 303, one end of the first lift rope 301 and elevator axis connection, the first lift rope
301 are wound around on the second directive wheel 7, the other end of the first lift rope 301 and 302 front end of the second lift rope and third lift rope
303 front end connection；Second lift rope 302 is wound around on the first directive wheel 2 and the rear end of the second lift rope 302 and movable stand
10 one end connection；Third lift rope 303 is wound around on third directive wheel 8 and the rear end of third lift rope 303 and movable stand 10
The other end connection.Third lift rope 303 and the second lift rope 302 are connect with the both ends of movable stand 10 respectively, can prevent to move
Moving frame 10 and detector 1 are swung, in order to avoid the flowing of air or crossbeam 4 shake, so that movable stand 10 and detector 1 are swung, are led
The combustable gas concentration value inaccuracy for causing detector 1 to detect.
Preferably, movable stand 10 can be plate-like, and movable stand 10 is parallel to horizontal plane setting, and detector 1 passes through card
It connects or bolted mode is connect with movable stand 10, in order to the replacement and maintenance of detector 1；The setting of detector 1 is moving
Moving frame 10 is towards on the side on ground.Second lift rope 302 and third lift rope 303 are respectively with movable stand 10 along being parallel to level
The both ends in face connect, to guarantee that movable stand 10 is parallel to the horizontal plane always.
Preferably, third directive wheel 8 is connect by connection frame with crossbeam 4, and centerline parallel is provided on connection frame in water
First connecting shaft of plane opens up the first connecting hole of own centre line Yu 8 axis collinear of third directive wheel on third directive wheel 8,
First connecting shaft is threaded through in the first connecting hole.
It is further preferred that third directive wheel 8 is between the second directive wheel 7 and the first directive wheel 2；It is upper in connection frame
The position on the first connecting shaft top is provided with central axis to be arranged in the second connecting shaft of horizontal plane, the 4th directive wheel 9
Second connecting hole of 9 axis collinear of center line and the 4th directive wheel, the second connecting shaft are threaded through in the second connecting hole, the second elevator
Rope 302 is wound around on the 4th directive wheel 9, to be oriented to the second lift rope 302.
Preferably, the front end of the second lift rope 302 and the front end of third lift rope 303 connect with the both ends of connecting rod respectively
It connecing, the first lift rope 301 is connect with the middle part of connecting rod, in case the second lift rope 302 and third lift rope 303 contact, so that
When the first lift rope 301 hauls the second lift rope 302 and third lift rope 303 is mobile, the second lift rope 302 and third elevator
Rope 303 is intertwined.
In the present embodiment the first traction rope, the second traction rope and third traction rope can there are many, such as: first traction
Rope, the second traction rope and third traction rope be the rope made of hemp with some strength or the first traction rope, the second traction rope with
And third traction rope is nylon rope.
With continued reference to Fig. 1 and Fig. 2.Specifically, stopper posts 11 are provided on movable stand 10, stopper posts 11 are used in movable stand
10 support on the ceiling when being moved to the limit to crossbeam 4.In order to avoid movable stand 10 connects with the first directive wheel 2 and third directive wheel 8
Touching, and then it is bad to avoid movable stand 10 from knocking the first directive wheel 2 or third directive wheel 8.
Preferably, stopper posts 11 can be set at side of the movable stand 10 away from ground and the middle part positioned at movable stand 10,
In order to avoid making 10 discontinuity of movable stand and run-off the straight when stopper posts 11 are supported on the ceiling.Alternatively, stopper posts 11 are
Two, two stopper posts 11 are separately positioned on movable stand 10 along the both ends for being parallel to horizontal plane, when movable stand 10 moves up
It extremely prescribes a time limit, two stopper posts 11 are supported on the ceiling.Certainly, stopper posts 11 can also be with more than two, stopper posts at this time
The setting at 11 intervals is on movable stand 10.
Specifically, the first lift rope 301, the second lift rope 302 and third lift rope 303 are wirerope.Wirerope
Intensity it is higher, and corrosion resistance is preferable, and service life is longer.
With continued reference to Fig. 1 and Fig. 2.Specifically, gas-detecting device further includes fixed column 12, and one end of fixed column 12 is used for
It is connect with ceiling, fixed column 12 is arranged perpendicular to horizontal plane；Detector 1 is used to connect by conducting wire 13 with controller, conducting wire
13 include linkage section 1301, free segment 1303 and the fixed section 1302 between linkage section 1301 and free segment 1303, connection
Section 1301 is electrically connected with the controller connection, and free segment 1303 is electrically connected with detector 1, and fixed section 1302 is connect with fixed column 12.
Fixed section 1302 is connected in fixed column 12, when movable stand 10 is mobile, only drives free segment 1303 mobile, can be to avoid entire
Conducting wire 13 is all moved together with movable stand 10, so that conducting wire 13 is contacted with the other equipment in workshop.
Preferably, fixed section 1302 can be connect by metal clip with fixed column 12, and metal clip includes the first movable plate, the
The end of two movable plates and spring, the end of the first movable plate and the second movable plate point is connect than not with the both ends of spring, bullet
Spring can drive the first movable plate and the second movable plate to rotate, and make the front end of the first movable plate and the front end of the second movable plate
It supports together；Make for fixed section 1302 and fixed part to be folded between the first movable plate and the second movable plate when installation,
To realize the connection between fixed section 1302 and fixed plate.Or fixed column 12 and fixed section 1302 are bundled in by nylon cable tie
Together.
In other embodiments, wireless transport module and antenna, wireless transport module point can be set on movable stand 10
It is not electrically connected with antenna and detector 1, after detector 1 will test the concentration of fuel gas, will test signal and be delivered to wirelessly
In transmission module, wireless transport module control antenna will test signal and wirelessly be sent to controller, and controller receives
After the wireless signal that antenna issues, the combustable gas concentration numerical value that detector 1 detects is generated, for staff's observation.It is real
The wireless connection between detector 1 and controller is showed, has avoided connecting between detector 1 and controller by conducting wire, caused laying
Conducting wire is difficult.
A kind of detection system is also provided in other embodiments, comprising: controller and gas detection as described above dress
It sets, gas-detecting device is electrically connected with the controller.Controller can be set on the ground or be arranged in the control room in workshop
It is interior, in order to staff's inspection.
Preferably, harmful gas detecting device, pernicious gas detection are additionally provided on the detector in gas-detecting device
Device can detecte density less than atmospheric density, nonflammable but can cause environmental pollution or damage to staff
Gas, such as: ammonia etc..So as to the data of pernicious gas in staff's timely learning workshop, in order to avoid nocuousness inside workshop
The excessively high of gas damages staff.Wherein harmful gas detecting device may include the sensing for detecting erector
Device etc..
Wherein, gas-detecting device includes: detector 1, the first directive wheel 2, elevator part 3, elevator axis and driving device；
For rotatably connect with crossbeam 4, elevator part 3 is wound around on the first directive wheel 2 first directive wheel 2, one end of elevator part 3 and
Detector 1 connects, the other end and elevator axis connection of elevator part 3；Driving device and elevator axis connection, for driving elevator axis to turn
It is dynamic, to furl or discharge elevator part 3；Detector 1 is used to detect the concentration of fuel gas in workshop.
Crossbeam 4 is used to carry the ceiling of workshop, the beams of metal or crossbeam 4 that crossbeam 4 is generally made of cast iron or steel by
The timber beam that timber is constituted.First directive wheel 2 includes wheel body, and the axis hole of own centre line and wheel body axis collinear is arranged on wheel body,
Shaft is provided on crossbeam 4, shaft is threaded through in axis hole, to realize being rotatably connected between the first directive wheel 2 and crossbeam 4；
Preferably, rolling bearing is provided in axis hole, the inner ring of rolling bearing is connect with shaft, the outer ring of rolling bearing and axis hole
Side wall connection, to reduce the frictional force between shaft and axis hole.Alternatively, the first directive wheel 2 includes wheel body and is arranged in wheel body
The axis of first fixing axle and the second fixing axle at both ends, the first fixing axle and the second fixing axle is set with the axis collinear of wheel body
It sets；Correspondingly, the first fixed shaft hole and the second fixed shaft hole are offered on crossbeam 4, the first fixing axle and the second fixing axle difference
It is threaded through in the first fixed shaft hole and the second fixed shaft hole；Preferably, it is all provided in the first fixed shaft hole and the second fixed shaft hole
It is equipped with rolling bearing.
Elevator part 3 can be a variety of in the present embodiment, such as: elevator part 3 includes iron chains, and one end of iron chains can pass through card
Connect perhaps bolted mode connect with the shell of detector 1 so as to repair or replace detector 1 when, by detector 1
By being disassembled on iron chains；The other end of iron chains is connect with the side wall of elevator axis by welding or bolted mode, with
Just when elevator axis rotates, iron chains be can wind on elevator axis, to realize the retracting of elevator part 3.Or elevator part 3 includes steel
One end of band, steel band is connect with detector 1, and the other end and elevator axis connection of steel band, in the rotation of elevator axis, iron chains can be twined
On elevator axis, detector 1 is moved up at the same time.
Driving device can be a variety of in the present embodiment, as long as elevator axis can be driven to rotate；Such as: driving device
Including driving motor, the main-shaft axis of driving motor and the axis collinear of elevator axis are arranged, and the axis of elevator axis is led with first
Axis to wheel 2 is parallel, and the main shaft of driving motor is connect by shaft coupling with one end of elevator axis；Driving motor by bolt with
Crossbeam 4 connects；Elevator can be driven axially to furl the direction rotation of elevator part 3 when driving motor work, and then make elevator part 3
It is wrapped on elevator axis；Preferably, driving motor is connected to power supply by conducting wire 13, switch is provided on conducting wire 13, by opening
Pass can control driving motor electrification or power-off；Preferably, switch setting is on the ground or in control room, in order to the people that works
Member's operation.In certain the present embodiment, wall 5 is arranged in also to connect with the wall 5 of factory in driving motor and elevator axis
Lower part.
It is further preferred that driving motor can be stepper motor, there is braking moment when stepper motor powers off, can hinder
Only elevator axis rotates；To rotate in the direction that driving elevator axially furls elevator part 3 and then to furl elevator part 3, and make to visit
After survey device 1 is moved a certain distance to crossbeam 4, elevator is prevented to axially release the direction rotation of elevator part 3；It is inputted additionally by control
Driving signal in stepper motor can control the rotational angle of stepper motor, and then accurately control detector 1 and ground
Between distance.
Due to processing heterogeneity chemical products when, the type of the fuel gas volatilized is different, and variety classes
Fuel gas density it is different so that different fuel gas can concentrate in workshop in the space of different height, at this point, can
With by stepper motor adjust detector 1 between ground at a distance from so that detector 1 be in fuel gas concentration position, guarantor
The accuracy that detector 1 obtains data is demonstrate,proved.
The use process of gas detecting system provided in this embodiment are as follows: the first segment 601 of actuating arm 6 is plugged in elevator
In the spliced eye of axis, and to protrusion 6011 is slidably installed in sliding slot, holds casing and rocking-turn turns second segment 602 and then drives
Dynamic elevator axis rotation, is wound into elevator part 3 on elevator axis, and at the same time, the direction from the ground of supporting or opposing of detector 1 is mobile, when
When detector 1 rises to the position where fuel gas, by the first segment 601 of actuating arm by being extracted in spliced eye；Detector 1 is examined
Survey the concentration of combustion gas body.It, need to be by the first segment of actuating arm 6 when detection breaks down and needs repairing or replace detector 1
601 are plugged in the spliced eye of elevator axis, and are slidably installed in protrusion 6011 in sliding slot；Pull pawl, so make pawl with
Ratchet is disengaged from, and has discharged elevator axis, holds casing at the same time and rocking-turn turns second segment 602, so that 6 band of actuating arm
Dynamic elevator axially releases the direction rotation of elevator part 3, and then the elevator part 3 on elevator axis is made to release winding；It detects at the same time
Device 1 moves to the ground, until detector 1 and ground face contact or detector 1 drop to the position convenient for staff's operation；
At this point, release pawl locks elevator axis so that pawl is engaged with ratchet.
Gas detecting system provided in this embodiment, by connecting the first directive wheel 2 rotatably with crossbeam 4, elevator
Part 3 is wound around on the first directive wheel 2, and one end of elevator part 3 is connect with detector 1, and the other end and elevator axis of elevator part 3 connect
It connects, driving device is for driving elevator axis to rotate, to furl or discharge elevator part 3；When detector 1 breaks down, Ke Yitong
Over-driving device drives the rotation of elevator axis, and then discharges elevator part 3, so that detector 1 moves to the ground, to reduce detector 1
Height, it is easy to operate and safe convenient for the maintenance and replacement to detector 1.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of gas-detecting device characterized by comprising detector, the first directive wheel, elevator part, elevator axis and drive
Dynamic device；First directive wheel is rotatably connect with crossbeam, and the elevator part is wound around on first directive wheel, described
One end of elevator part is connect with the detector, the other end of the elevator part and the elevator axis connection；The driving device
With the elevator axis connection, for driving the elevator axis to rotate, to furl or discharge the elevator part；The detector is used for
Detect the concentration of fuel gas in workshop.
2. gas-detecting device according to claim 1, which is characterized in that the gas-detecting device further includes locking dress
It sets；The elevator axis is located at the lower part of the wall for rotatably connecting with the wall of workshop；The locking device is used
In locking the elevator axis after furling the elevator part, turned with the direction for preventing the elevator from axially releasing the elevator part
It is dynamic.
3. gas-detecting device according to claim 2, which is characterized in that the locking device includes ratchet and spine
Pawl；The ratchet and the elevator axis connection, the pawl are rotatably connect with the wall；The pawl is described in the retracting
It is engaged after elevator part with the ratchet.
4. gas-detecting device according to claim 2, which is characterized in that the driving device includes actuating arm, described
Actuating arm include the first segment being disposed in parallel relation to one another and second segment and with the vertically disposed third section of the first segment, it is described
One end of first segment and the elevator axis are sequentially connected, and the other end of the first segment is connect with one end of the third section, institute
The other end for stating third section is connect with one end of the second segment.
5. gas-detecting device according to claim 4, which is characterized in that the gas-detecting device further includes second leading
To wheel, second directive wheel is rotatably connect with the upper end of the wall；The elevator part is wound around second guiding
On wheel.
6. gas-detecting device according to claim 5, which is characterized in that the gas-detecting device further include: mobile
Frame and third directive wheel；The detector is arranged on the movable stand, the third directive wheel rotatably with the cross
Beam connection；The elevator part includes the first lift rope, the second lift rope and third lift rope, one end of first lift rope
With the elevator axis connection, first lift rope is wound around on second directive wheel, the other end of first lift rope
It is connect with the front end of second lift rope front end and the third lift rope；Second lift rope is wound around described first and leads
To wheel, the rear end of upper and described second lift rope is connect with one end of the movable stand；The third lift rope is wound around described
On the third directive wheel and rear end of the third lift rope is connect with the other end of the movable stand.
7. gas-detecting device according to claim 6, which is characterized in that be provided with stopper posts, institute on the movable stand
Stopper posts are stated for extremely supporting on the ceiling in limited time in the movable stand to the cross beam movement.
8. gas-detecting device according to claim 6, which is characterized in that first lift rope, the second lift rope with
And third lift rope is wirerope.
9. gas-detecting device according to claim 1, which is characterized in that the gas-detecting device further includes fixing
Column, for connecting with ceiling, the fixed column is arranged perpendicular to horizontal plane for one end of the fixed column；The detector is used for
Connect by conducting wire with controller, the conducting wire include linkage section, free segment and be located at the linkage section and the free segment
Between fixed section, the linkage section is electrically connected connection with the controller, and the free segment is electrically connected with the detector, described
Fixed section is connect with the fixed column.
10. a kind of detection system characterized by comprising controller and the described in any item gas detections of claim 1-9
Device, the gas-detecting device are electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820491845.9U CN208224196U (en) | 2018-04-09 | 2018-04-09 | Gas-detecting device and detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820491845.9U CN208224196U (en) | 2018-04-09 | 2018-04-09 | Gas-detecting device and detection system |
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| Publication Number | Publication Date |
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| CN208224196U true CN208224196U (en) | 2018-12-11 |
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| CN201820491845.9U Active CN208224196U (en) | 2018-04-09 | 2018-04-09 | Gas-detecting device and detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899857A (en) * | 2021-09-06 | 2022-01-07 | 上海市计量测试技术研究院 | Ambient air quality monitor with network transmission function |
-
2018
- 2018-04-09 CN CN201820491845.9U patent/CN208224196U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899857A (en) * | 2021-09-06 | 2022-01-07 | 上海市计量测试技术研究院 | Ambient air quality monitor with network transmission function |
| CN113899857B (en) * | 2021-09-06 | 2024-03-22 | 上海市计量测试技术研究院 | Ambient air quality monitor with network transmission function |
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