CN201627354U - Tension alarm device - Google Patents
Tension alarm device Download PDFInfo
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- CN201627354U CN201627354U CN2010200032283U CN201020003228U CN201627354U CN 201627354 U CN201627354 U CN 201627354U CN 2010200032283 U CN2010200032283 U CN 2010200032283U CN 201020003228 U CN201020003228 U CN 201020003228U CN 201627354 U CN201627354 U CN 201627354U
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- tensile force
- pull bar
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Abstract
The utility model provides a tension alarm device which can solve the problems of increased cost and easy potential safety hazard caused by easily broken cables of the building machinery in the prior art. The cables can be effectively prevented from being pulled broken, the fault rate of the cable and the maintenance rate of the machinery are reduced, and the service life of the cable is prolonged by installing the tension alarm device on the building machinery. The utility model adopts the technical scheme that the tension alarm device comprises a shell part, a tie rod part, a shift lever part, an alarm part and a fixed part, wherein the shell part comprises a cover plate and a base which are hermetically connected; the tie rod part comprises a tie rod which can move up and down according to the external tensile force; the shift lever part comprises a shift lever, a compression bar and a rotary support, and the shift lever receives the tensile force of the tie rod and drives the compression bar and the rotary support to swing; the alarm part comprises a toggle switch, an alarm circuit module and a loudspeaker which are electrically connected, and the toggle switch receives the power of the rotary support to change state; and the fixed part comprises a draw hook and at least one lengthened screw rod, and the lengthened screw rod penetrates through the base.
Description
Technical field
The utility model relates to building field, specifically, relates to the tensile force alarm device that a kind of cable that prevents building machinery is broken.
Background technology
Construction elevator, building machineries such as aerial work basket utilize anchor clamps or colligation mode that cable end piece is fixed on the working platform outside, with working platform one lifting.Because odjective cause, the operative employee is difficult to the situation below the working platform is observed in controlling mechanical up process, and the obstruction of outstanding metope often tangles cable, breaks.Use in the many open-air places in the working environment complexity of building machinery, is difficult to after cable is hung up repeatedly repair, and the insulating properties and the minimum breaking force of cable reduce greatly, are easy to cause electric leakage, faults such as phase shortage because of reasons such as rain penetration, continuous stretchings.Especially aerial work basket owing to frequent conversion operating position, is not easy to be provided with fixing safeguard procedures, and cable is broken, and draws bad probability very big, and the cable life cycle is very short.
The utility model content
The utility model provides a kind of tensile force alarm device, and the cable that can solve the building machinery of prior art existence is broken the problem that causes cost to increase, easily cause potential safety hazard easily.
By tensile force alarm device is installed on building machinery, it is bad to prevent that effectively cable from being drawn, and reduces the maintenance rate of cable bad rate and machinery, prolongs cable application life.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of tensile force alarm device comprises,
Housing parts comprises the cover plate and the base that are tightly connected;
The pull bar part comprises the pull bar that can move up and down according to external tensile force;
The driving lever part comprises driving lever, constrictor and rotary support, and described driving lever is accepted the pulling force of described pull bar and driven described constrictor and rotary support swing;
The warning part comprises that toggle switch, warning circuit module and the loudspeaker of electrical connection, described toggle switch accept the power of described rotary support and the change state;
Standing part comprises that drag hook and at least one add long bolt, and the described long bolt that adds runs through described base.
In technique scheme of the present utility model, also have following technical characterictic:
Pull bar in the described pull bar part is provided with first step, second step and the 3rd step from bottom to up successively, and be set with hollow bolt from bottom to up successively, load bearing spring and packing ring, the spacing locknut of suit, elastic force adjusting nut on the described hollow bolt, have compound circular hole on the first step of pull bar and the part between the second step, the lower end of described pull bar is connected with fastening clip for cable;
In the described driving lever part, described base is provided with fixed bearing, described fixed bearing is provided with a B and axle C, described driving lever is hinged on described axle C upward also can be around axle C rotary oscillation, described rotary support is hinged on the described axle B, also be provided with an A on the described rotary support, described constrictor is hinged on that described axle A goes up and can be around axle A rotary oscillation, and described driving lever contacts with described constrictor after passing compound circular hole on the described pull bar;
In the described warning part, described toggle switch and loudspeaker are set on the described base, described warning circuit module is set on the described cover plate;
In the described standing part, the top that described drag hook is fixed on described base is used for fixing whole described warning device; The described long bolt that adds is two, is arranged on described load bearing spring both sides, and wherein one adds long bolt and contacts with described rotary support.
In technique scheme of the present utility model, also have following technical characterictic: described spacing locknut is provided with tight fixed bolt, and described elastic force adjusting nut is provided with pointer.
In technique scheme of the present utility model, also have following technical characterictic: be provided with fixed mount between described toggle switch and the base, the swing arm on the described toggle switch is passed described fixed mount and is stretched in the described rotary support.
In technique scheme of the present utility model, also have following technical characterictic: described cover plate is provided with graduation apparatus, alarm lamp, relay indicating light, and described graduation apparatus place has the pointer stopper slot.
In technique scheme of the present utility model, also has following technical characterictic: be provided with buffer spring between described fastening clip for cable and the pull bar.
In technique scheme of the present utility model, also have following technical characterictic: described base and cover plate for sealing connecting portion office are equipped with rubber strip.
In technique scheme of the present utility model, also have following technical characterictic: described constrictor is provided with resistance spring, and the described constrictor end that contacts with driving lever is provided with the spill cone, and the described driving lever end that contacts with constrictor is provided with acicular texture.
In technique scheme of the present utility model, also have following technical characterictic: described fixed bearing and base junction are provided with the shaft type tight fixed bolt.
In technique scheme of the present utility model, also have following technical characterictic: described base is provided with the caging bolt of the described rotary support anglec of rotation of restriction.
Housing parts:
1, shell is adopted by cover plate and base that " [" shape textural association forms, and the cover plate bottom has four silk holes to be connected by bolt with base.The circuit part of cover plate and base adopts plug-in unit to be connected.This structure of shell is assembly and adjustment easily
2, the upper end of base is equipped with the drag hook of " L " shape, and drag hook can be suspended on tensile force alarm device integral body the machine work platform outside easily.Rubber washer is housed on the drag hook, and loudspeaker is equipped with in the base lower end.
3, the upper surface of cover plate is equipped with transparent rubber graduation apparatus, alarm lamp, relay indicating light.The warning circuit module is equipped with at the back side.
4, rubber strip is equipped with in the upper/lower terminal of cover plate and bottom.
The driving lever part:
1, shaft type tight fixed bolt and fixed bearing be by being threaded, and fixed bearing is fixing on the installing hole of base.Thin slice shape nut is fixing on fixed bearing with the shaft type tight fixed bolt, and can suitably adjust the position.
2, rotary support and axis of rotation C utilize the axle of shaft type tight fixed bolt front end, are the rotation that certain angle is done at the center with axle B, axle C respectively.Axle B is the axis of shaft type tight fixed bolt, and axle C is the axis of shaft type tight fixed bolt, and axle B is parallel with axle C.
3, add the upper/lower terminal that long bolt passes the hole connection base of fixed bearing, two packing rings are arranged between the hole of base and fixed bearing.
Utilize the swing arm campaign of the circular hole drive toggle switch of bottom when 4, rotary support rotates.
5, add long bolt and caging bolt and can limit the angle that rotary support rotates, prevent the excessive damage toggle switch of its rotational angle.
6, constrictor passes the resistance spring center, and A is connected by the hole with axle, freely stretches on axle A, the ledge structure pressure drag spring in the middle of utilizing.
7, an axle A is contained on the rotary support, and the axle at two ends is connected by the hole with rotary support, is that the center is done certain angle and rotated with self axis (promptly spool A center line).Axle A is parallel with axle B.
8, driving lever and axle C can regulate extension elongation by being threaded, extension elongation adjust suitable after, utilize locknut that driving lever is fixing on axle C.
9, the driving lever front end is an acicular texture, embeds the spill conical structure of constrictor front end, drives the constrictor motion.
The pull bar part:
1, pull bar is to have three ledge structure cylinders, and compound borehole structure is arranged at top, and screw thread can be carved with in the lower end.
2, the pull bar upper end is stretched in the hole of fixed bearing upper end, utilizes the 3rd ledge structure, the swing of restriction pull bar and up distance.
3, the load bearing spring packing ring utilizes the second step structure of pull bar to bear the active force of pull bar.
4, hollow bolt utilizes the descending distance of pull bar first step structural limitations pull bar.
5, pull bar utilizes compound borehole structure to drive the driving lever motion, and the angle of restriction driving lever swing.Compound borehole structure is that the center contacts with described driving lever, and gapped with driving lever all around, when pull bar moves up and down, can drive the driving lever swing like this.
6, hollow bolt passes base, and the position on the hollow bolt vertical direction can be by spacing locknut adjustment.The position adjust suitable after, tighten special-shaped tight fixed bolt and spacing locknut can be connected as a wholely with hollow bolt, be that arbitrarily angled rotation is done at the center with the axis of pull bar.
7, the lower end of pointer and elastic force adjusting nut can suitably be adjusted extended position by being threaded.Adjust and tighten the pointer hold-down nut after suitable and can be connected as a whole with the elastic force adjusting nut pointer.
8, the swing on the pointer stopper slot limit pointer horizontal direction of cover plate, the graduation apparatus reflection pointer of cover plate is in the situation of the motion of vertical direction.Adjusting pointer requires to make to correct on the pointer and embeds in the middle of the stopper slot but do not destroy graduation apparatus.
9, elastic force adjusting nut and hollow bolt can freely rotate on hollow bolt by being threaded.
10, load bearing spring packing ring column part is inserted in the load bearing spring upper end, and elastic force adjusting nut column part is inserted in the lower end.
11, the latter half of pull bar is passed the center of load bearing spring packing ring, load bearing spring and hollow bolt, and threaded portion all exposes the hollow bolt bottom.
12, the buffer spring upper end is fixed at the pull rod screw position by nut, and the buffer spring lower end connects the geometrical clamp of protected cable.
13, the rubber washer on buffer spring and the drag hook can buffer mechanism moment the impulse force that protected cable produced when starting.
14, buffer spring is also had cushioning effect for cable by the pulling force that obstruction tangles the instantaneous increase in back, has been equivalent to increase the elasticity of protected cable.
The movement relation of driving lever, pull bar and rotary support
The resistance adjustment of resistance spring
The rotation driving lever increases the extension elongation of driving lever on axle C gradually, because the elastic force effect meeting of resistance spring produces following result:
1, the front end of constrictor closely contacts with the driving lever front end, and moves upward together, and the front end of constrictor is close on the fixed bearing;
2, because the drive of driving lever moves upward pull bar, the pull bar upper end closely contacts with fixed bearing;
3, axle A promotes rotary support motion, the rotary support bottom righthand side with add long bolt and closely contact;
At this moment, the driving lever extension elongation is big more, and it is big more that resistance spring shrinks, and then the resistance that moves downward of pull bar is big more.
Concrete motion process:
Pull bar moves downward the drive driving lever and is rotated counterclockwise, and forces constrictor pressure drag spring to shrink.When driving lever turns to an A with the plane at axle C place when following, the resistance spring elongation discharges elastic potential energy, and forcing an A is that the center turns clockwise with the driving lever front end, and the driven rotary bearing turns clockwise, and rotary support drives the swing arm of toggle switch to left movement.Axle A closely contacts with the rotary support caging bolt.
The distance that hollow bolt top restriction pull bar moves downward, pull bar has limited the angle of driving lever counter-clockwise swing simultaneously, prevents that driving lever and constrictor break away from.
Pull bar moves upward and forces driving lever to turn clockwise, and the pressure drag spring shrinks.When driving lever moves to an A with the plane at axle C place when following, the resistance spring elongation discharges elastic potential energy, and forcing an A is that the center is rotated counterclockwise with the driving lever front end, and the driven rotary bearing is rotated counterclockwise, and the swing arm that rotary support drives toggle switch moves right.The rotary support bottom righthand side with add long bolt and closely contact.
The distance that fixed bearing restriction pull bar moves upward has also limited the distance that constrictor moves upward simultaneously, and pull bar has limited the driving lever angle of swing clockwise, prevents that driving lever and constrictor break away from.
Tensile force alarm device with the structure design of revolving part is: when pull bar was up and down, the plane, center line place of axle B and axle C was with the anglec of rotation five equilibrium of the driving lever anglec of rotation, axle A; The plane, center line place of axle B and swing arm axis of rotation is with the anglec of rotation five equilibrium of swing arm, being provided with when having determined that pull bar moves up or down like this, the decrement of resistance spring equates, the resistance equal and opposite in direction when driving lever moves up and down for pull bar makes tensile force alarm device be more convenient for debugging.
The adjustment of load bearing spring elastic force
The adjustment of load bearing spring is to finish in the resistance spring adjustment, and shell and each several part connect, and carry out after fixing.
1, is rotated counterclockwise hollow bolt from the outside, can rotates with equal angular after spacing locknut and hollow bolt are fixed together;
2, because pointer can not rotate under the restriction of stopper slot, the elastic force adjusting nut that is connected with it can not rotate;
3, because the elastic force adjusting nut adopts with hollow bolt to be threaded, during the hollow bolt rotation, elastic force adjusting nut and spacing locknut can produce differential seat angle, and the spacing between them can increase gradually;
4, spacing locknut forces the elastic force adjusting nut to move upward because the restriction of base can not move downward;
5, the elastic force adjusting nut is oppressed load bearing spring when moving upward, and load bearing spring can be oppressed the load bearing spring packing ring again, and the load bearing spring packing ring produces active force upwards to pull bar, and pull bar can not be moved upward by the restriction of fixed bearing.
This moment, load bearing spring began to shrink, and elastic force increases gradually, and pointer can be reflected to this force variation on the graduation apparatus.
Otherwise when hollow bolt turns clockwise, the elastic force of load bearing spring will reduce gradually.
In the load bearing spring elastic force adjustment process, pull bar is subjected to the restriction of fixed bearing, can produce active force upwards to fixed bearing.Because the inboard of fixed bearing is fixing, its outside is subjected to this power effect meeting that slight deformation takes place, and can oppress the upper end of base.
Tighten up the flange nut that adds long bolt top and can prevent that base from deforming, contained the distortion of fixed bearing simultaneously by the effect of packing ring.
Tighten up flange nut simultaneously, can force the upper/lower terminal of base and the rubber strip that is installed in the upper and lower both sides of cover plate to be combined closely.Tighten up the bolt that connects cover plate on the base, the rubber strip and the base of cover plate bottom are combined closely.Shell integral body has just had the rainproof effect that seals like this.Loudspeaker is installed in the base lower end, and the aperture by the bottom spreads out of sound, utilizes the viscose glue sealing between rubber graduation apparatus and the cover plate, can not destroy whole rainproof effect.
The debugging of tensile force alarm device and use
(with the driven hanging basket is that example is analyzed, hereinafter to be referred as hanging basket.If hanging basket cable all-mass is M, the cable minimum breaking force is Fp.The average acceleration that produces during hanging basket startup of up moment is a)
Debugging
Under the lax fully situation of resistance spring, load bearing spring, when up and down pull bar, the driving lever anglec of rotation is by the timesharing such as center line place plane of axle B with axle C, and spacing locknut is fixing on hollow bolt.
Adjust the extension elongation of driving lever, when up and down pull bar, when rotary support can drive toggle switch swing arm campaign neatly, that driving lever is fixing on axle C.If the resistance that this moment, driving lever moved up and down to pull bar is f.
Adjust the elastic force (being made as Ft) of load bearing spring, make it to meet the following conditions.
Fp＞Ft+f＞Mg+Ma
Ft-f＞Mg (g is an acceleration of gravity)
Then Ft+f is the warning pulling force of tensile force alarm device, is made as Fb
Ft-f is the pulling force that automatically resets of tensile force alarm device, is made as Fz
This moment, the pulling force alarm switch just can use.
Use
When hanging basket started or at the uniform velocity rises, the pulling force (being made as Fu) that is subjected on the fastening clip for cable of tensile force alarm device lower end can not make pull bar move downward, toggle switch U, and the V closing of contact, relay indicating light is bright, the hanging basket operate as normal.
After the hanging basket cable is tangled by the below obstruction, Fu will increase rapidly, and when Fu＞Fb, pull bar will move downward, and rotary support drives the swing arm of toggle switch to left movement.This moment toggle switch U, the V contact disconnects, the hanging basket upstream circuitry disconnects, and stops up; While toggle switch V, the W closing of contact, voice alarm circuit starts, the alarm lamp flicker, loudspeaker sends the alarm voice, and prompting operation worker checks the cable of machinery.
The operative employee can directly remove barriers, and can handle as can not directly getting rid of that hanging basket is descending to remove barriers.Only bear cable gravity on the fastening clip for cable of removal of obstacle back pull warning device lower end, this moment Fu＜Mg＜Fz, then pull bar moves upward, hanging basket recovers normal operation.
Stop uply after hanging basket is tangled by obstruction, working platform has slight swing, adds that walking about of people can make the platform swing equally in the working platform, and this moment, Fu can fluctuate at alarming value Fb.
For prevent that the pulling force alarm switch from not reporting to the police continually and reset before obstacle is not got rid of, damage self and hanging basket circuit, can adjust f according to actual conditions, f is increased, then the difference of Fb and Fz increases, and when obstacle was not got rid of fully, tensile force alarm device just can not automatically reset like this.
Adjustment to f should need meet the following conditions within the range of permission:
Fb＜Fp Fz＞Mg
Compared with prior art, advantage of the present utility model and good effect are:
Before tensile force alarm device not being installed, the operative employee is handling mechanically when up, needs to pay close attention to the situation of working platform periphery, guarantee the safe operation of platform, can't observe following situation, be difficult to aware and parking immediately in case cable tangles, cable can often be hung up.After cable is hung up,, be easy to short circuit and burn out electric elements and cable self, also produce potential safety hazard simultaneously because fracture place lead is exposed.After cable is hung up for several times, the flight-line maintenance rate will increase greatly, and the date of retirement of cable also will shift to an earlier date.Tensile force alarm device is installed for the safety that improves machinery, reducing the flight-line maintenance rate has very big benefit, in the time of the protection cable, has prolonged the application life of cable greatly.Along with the development of builing industry External Walls Heating Insulation, the application of driven hanging basket is more and more, therefore, the applying of the utility model tensile force alarm device for saving social resources, it is significant to create conservation-minded society.
1, tensile force alarm device utilizes the tension variations of protected cable end piece that the residing state of cable is made judgement, triggers warning circuit and disconnects mechanical upstream circuitry, plays the effect of protection cable.
2, the user can be according to the weight of own cable, and the situation of cable (such as new and old situation, the stretch-proof ability) and the situation of working environment are adjusted the setting of tensile force alarm device, makes tensile force alarm device play the optimum efficiency of protection cable.
3, need not to open under the situation of cover plate, tensile force alarm device utilizes the adjustment structure of hollow nut formula the warning value of thrust to be adjusted more convenient user's use.
4, the use at tensile force alarm device surpasses the time limit that limits, the elastic force of load bearing spring will reduce, under the situation of not changing load bearing spring, the user only needs suitably to heighten certain numerical value on the numerical value basis that pointer shows, then can prolong the life cycle of tensile force alarm device.
5, the protection effect of tensile force alarm device for cable strengthened in the use of buffer spring.
6, the use of voice alarm circuit can be pointed out guilty culprit clearly, and other fault differences with mechanically prevent to overhaul blindly, make the more convenient use of tensile force alarm device.
7, the structure of driving lever and rotary support combination makes pull bar in the very little situation of scope of activities, and rotary support just can be controlled toggle switch neatly.Heightened the sensitivity of tensile force alarm device so to a great extent.
8, the elastic force of resistance spring adjust structure can avoid machinery cable tangled stop up after because the swing of working platform is reported to the police tensile force alarm device continually, reset.
9, pulling force alarm switch shell adopts metal material, and integral sealing is rainproof, adapts to building machinery construction operation and the open-air requirement of using.
10, the regulatory function of pointer position, the position adjustment function that reaches hollow bolt are mainly used in to eliminate in the industry and nuance may occur, improve the practicality and the sensitivity of tensile force alarm device.When the standardization level of producing meets the requirements, then it can be made as definite value, need not to adjust.
11, the special construction of rotary support can be changed the power on the different directions.
12, the special construction of shaft type tight fixed bolt is a kind of securing member, is again the axle of inner revolving part simultaneously, and adjusting position easily makes the more compact structure of tensile force alarm device, assembles simpler and more direct.
13, the special construction of pull bar can be delivered to the pulling force of outside warning device inside, and drives the motion of inner revolving part.
14, adding long bolt is a kind of securing member, can limit the motion of revolving part again.
Description of drawings
Fig. 1 is the structure diagram after tensile force alarm device described in the utility model removes cover plate;
Fig. 2 is the structure schematic diagram of cover plate;
Fig. 3 is the structure explosive view of tensile force alarm device described in the utility model;
Symbol among the figure and explanation thereof:
10, housing parts; 11, cover plate; 11-1, graduation apparatus; 11-2, alarm lamp; 11-3, relay indicating light; 11-4, pointer stopper slot; 11-5, rubber strip; 12, base; 12-1, rubber strip; 13, fixed bearing; 13-1, axle B; 13-2, axle C; 14, shaft type tight fixed bolt;
20, pull bar part; 21, pull bar; 21-1, first step; 21-2, second step; 21-3, the 3rd step; 21-4, compound circular hole; 22, hollow bolt; 23, load bearing spring; 24, packing ring; 25, spacing locknut; 25-1, tight fixed bolt; 26, elastic force adjusting nut; 26-1, pointer; 27, fastening clip for cable; 28, buffer spring;
30, driving lever part; 31, driving lever; 31-1, acicular texture; 32, constrictor; 32-1, spill cone; 33, rotary support; 33-1, axle A; 34, resistance spring; 35, caging bolt;
40, warning part; 41, toggle switch; 41-1, swing arm; 42, warning circuit module; 43, loudspeaker; 44, fixed mount;
50, standing part; 51, drag hook; 52, add long bolt; 53, flange nut.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As depicted in figs. 1 and 2, the tensile force alarm device on a kind of driven hanging basket that is applied on the building trade comprises housing parts 10, pull bar part 20, driving lever part 30, warning part 40, standing part 50;
As shown in Figure 3, the blast structural representation of tensile force alarm device;
For better seal cover board 11 and base 12, the left and right sides of described base 12 is provided with rubber strip 12-1, and the both sides up and down of described cover plate 11 are provided with rubber strip 11-5.
Pull bar part 20, comprise the pull bar 21 that can move up and down according to external tensile force, pull bar 21 is provided with first step 21-1 from bottom to up successively, second step 21-2 and the 3rd step 21-3, and be set with hollow bolt 22 from bottom to up successively, load bearing spring 23 and packing ring 24, the spacing locknut 25 of suit on the described hollow bolt 22, elastic force adjusting nut 26, described spacing locknut 25 is provided with tight fixed bolt 25-1, described elastic force adjusting nut 26 is provided with pointer 26-1, pointer 26-1 fixes by nut, when cover plate 11 with after base 12 is fixedlyed connected, pointer 26-1 is stuck in the pointer stopper slot 11-4 on the cover plate 11.
Have compound circular hole 21-4 on the first step 21-1 of pull bar 21 and the part between the second step 21-2, the lower end of described pull bar 21 is connected with fastening clip for cable 27; The impulse force that during for buffer mechanism moment startup protected cable is produced is provided with buffer spring 28 between described fastening clip for cable 27 and the pull bar 21.Buffer spring 28 is also had cushioning effect for cable by the pulling force that obstruction tangles the instantaneous increase in back, has been equivalent to increase the elasticity of protected cable.
Driving lever part 30 comprises driving lever 31, constrictor 32 and rotary support 33, and described driving lever 31 is accepted the pulling force of described pull bar 21 and driven described constrictor 32 and rotary support 33 swings; Described base 12 is provided with fixed bearing 13, fixed bearing 13 and base 12 junctions are provided with shaft type tight fixed bolt 14, shaft type tight fixed bolt 14 is bolts that an end has optical axis, the fixed bearing 13 at axle C13-2 place is provided with shaft type tight fixed bolt 14, and the optical axis of shaft type tight fixed bolt 14 ends just inserts axle C13-2 two ends with rotation.
Described fixed bearing 13 is provided with a B13-1 and axle C13-2, described driving lever 31 is hinged on described axle C13-2 upward also can be around axle C13-2 rotary oscillation, described rotary support 33 is hinged on the described axle B13-1, with fixed bearing 13 shared axles, also be provided with an A33-1 on the described rotary support 33, described constrictor 32 is hinged on that described axle A33-1 goes up and can be around axle A33-1 rotary oscillation, and described driving lever 31 contacts with described constrictor 32 after passing compound circular hole 21-4 on the described pull bar 21;
Described constrictor 32 is provided with resistance spring 34, described constrictor 32 end that contacts with driving lever 31 is provided with spill cone 32-1, described driving lever 31 end that contacts with constrictor 32 is provided with acicular texture 31-1, and the acicular texture 31-1 of driving lever 31 stretches in the spill cone 32-1 of constrictor 32 to stir constrictor 32 rotations.
Warning part 40, the toggle switch 41, warning circuit module 42 and the loudspeaker 43 that comprise electrical connection, described toggle switch 41 are accepted the power of described rotary support 33 and the change state, promptly as toggle switch U, relay indicating light is bright during the V closing of contact, the hanging basket operate as normal; As toggle switch V, the W closing of contact, the voice alarm circuit module starts, the alarm lamp flicker, loudspeaker sends the alarm voice, and prompting operation worker checks the cable of machinery.
A fixed mount 44 and loudspeaker 43 are fixed in the lower left corner of described base 12, fix described toggle switch 41 on the fixed mount 44, and the lower left corner of described cover plate 11 is provided with the warning circuit module 42 that is connected with above-mentioned toggle switch 41, loudspeaker 43 plug-in units; Described toggle switch 41 is provided with swing arm 41-1, and described swing arm 41-1 passes the hole on the described fixed mount 44 and stretches in the hole of described rotary support 33.
Standing part 50 comprises that drag hook 51 and two add long bolt 52, and the described long bolt 52 that adds runs through described base 12, and the end that adds long bolt 52 is fixed on the base 12 by flange bolt 53, and wherein one adds long bolt 52 and contacts with described rotary support 33 right sides.The top that described drag hook 51 is fixed on described base 12 is used for fixing whole described warning device; Described base 12 is provided with the described rotary support 33 of the restriction caging bolt 35 of the anglec of rotation left.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (10)
1. tensile force alarm device is characterized in that: comprises,
Housing parts comprises the cover plate and the base that are tightly connected;
The pull bar part comprises the pull bar that can move up and down according to external tensile force;
The driving lever part comprises driving lever, constrictor and rotary support, and described driving lever is accepted the pulling force of described pull bar and driven described constrictor and rotary support swing;
The warning part comprises that toggle switch, warning circuit module and the loudspeaker of electrical connection, described toggle switch accept the power of described rotary support and the change state;
Standing part comprises that drag hook and at least one add long bolt, and the described long bolt that adds runs through described base.
2. tensile force alarm device according to claim 1 is characterized in that:
Pull bar in the described pull bar part is provided with first step, second step and the 3rd step from bottom to up successively, and be set with hollow bolt from bottom to up successively, load bearing spring and packing ring, the spacing locknut of suit, elastic force adjusting nut on the described hollow bolt, have compound circular hole on the first step of pull bar and the part between the second step, the lower end of described pull bar is connected with fastening clip for cable;
In the described driving lever part, described base is provided with fixed bearing, described fixed bearing is provided with a B and axle C, described driving lever is hinged on described axle C upward also can be around axle C rotary oscillation, described rotary support is hinged on the described axle B, also be provided with an A on the described rotary support, described constrictor is hinged on that described axle A goes up and can be around axle A rotary oscillation, and described driving lever contacts with described constrictor after passing compound circular hole on the described pull bar;
In the described warning part, described toggle switch and loudspeaker are set on the described base, described warning circuit module is set on the described cover plate;
In the described standing part, the top that described drag hook is fixed on described base is used for fixing whole described warning device; The described long bolt that adds is two, is arranged on described load bearing spring both sides, and wherein one adds long bolt and contacts with described rotary support.
3. tensile force alarm device according to claim 2 is characterized in that: described spacing locknut is provided with tight fixed bolt, and described elastic force adjusting nut is provided with pointer.
4. tensile force alarm device according to claim 2 is characterized in that: be provided with fixed mount between described toggle switch and the base, the swing arm on the described toggle switch is passed described fixed mount and is stretched in the described rotary support.
5. tensile force alarm device according to claim 3 is characterized in that: described cover plate is provided with graduation apparatus, alarm lamp, relay indicating light, and described graduation apparatus place has the pointer stopper slot.
6. tensile force alarm device according to claim 2 is characterized in that: be provided with buffer spring between described fastening clip for cable and the pull bar.
7. tensile force alarm device according to claim 1 and 2 is characterized in that: described base and cover plate for sealing connecting portion office are equipped with rubber strip.
8. tensile force alarm device according to claim 2 is characterized in that: described constrictor is provided with resistance spring, and the described constrictor end that contacts with driving lever is provided with the spill cone, and the described driving lever end that contacts with constrictor is provided with acicular texture.
9. tensile force alarm device according to claim 2 is characterized in that: described fixed bearing and base junction are provided with the shaft type tight fixed bolt.
10. tensile force alarm device according to claim 2 is characterized in that: described base is provided with the caging bolt of the described rotary support anglec of rotation of restriction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200032283U CN201627354U (en) | 2010-01-15 | 2010-01-15 | Tension alarm device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200032283U CN201627354U (en) | 2010-01-15 | 2010-01-15 | Tension alarm device |
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| Publication Number | Publication Date |
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| CN201627354U true CN201627354U (en) | 2010-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010200032283U Expired - Lifetime CN201627354U (en) | 2010-01-15 | 2010-01-15 | Tension alarm device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029359A (en) * | 2010-12-02 | 2011-04-27 | 苏州苏铸成套装备制造有限公司 | Device for cleaning and detecting external part of sand box |
| CN101777243B (en) * | 2010-01-15 | 2012-02-01 | 许宾 | Tensile force alarm device |
| CN102530673A (en) * | 2011-12-26 | 2012-07-04 | 许宾 | Digital pulling force alarm device |
| CN103420240A (en) * | 2013-07-26 | 2013-12-04 | 许宾 | Intelligent type tensile force warning device |
| CN106946118A (en) * | 2017-04-28 | 2017-07-14 | 湖北江汉建筑工程机械有限公司 | A kind of building hoist tape jam detection and the cable pulley system of automatic protection |
-
2010
- 2010-01-15 CN CN2010200032283U patent/CN201627354U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777243B (en) * | 2010-01-15 | 2012-02-01 | 许宾 | Tensile force alarm device |
| CN102029359A (en) * | 2010-12-02 | 2011-04-27 | 苏州苏铸成套装备制造有限公司 | Device for cleaning and detecting external part of sand box |
| CN102530673A (en) * | 2011-12-26 | 2012-07-04 | 许宾 | Digital pulling force alarm device |
| CN102530673B (en) * | 2011-12-26 | 2014-09-03 | 许宾 | Digital pulling force alarm device |
| CN103420240A (en) * | 2013-07-26 | 2013-12-04 | 许宾 | Intelligent type tensile force warning device |
| CN106946118A (en) * | 2017-04-28 | 2017-07-14 | 湖北江汉建筑工程机械有限公司 | A kind of building hoist tape jam detection and the cable pulley system of automatic protection |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101110 Effective date of abandoning: 20100115 |