CN202976392U - Jib safety pre-warning apparatus and jib with same - Google Patents
Jib safety pre-warning apparatus and jib with same Download PDFInfo
- Publication number
- CN202976392U CN202976392U CN 201220655201 CN201220655201U CN202976392U CN 202976392 U CN202976392 U CN 202976392U CN 201220655201 CN201220655201 CN 201220655201 CN 201220655201 U CN201220655201 U CN 201220655201U CN 202976392 U CN202976392 U CN 202976392U
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- China
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- warning device
- jib
- arm support
- support safe
- detection element
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Abstract
The utility model provides a jib safety pre-warning apparatus and a jib with the same. The jib safety pre-warning apparatus provided by the invention comprises a power supply, an alarm device and a conductive detection element, wherein the conductive detection element extends along a length direction of a jib body, attached on the surface of the jib body and insulated from the jib body, and an alarm is sounded when the current of the alarm device in the conductive detection element is smaller than a first preset value or is zero. According to the utility model, the conductive detection element is closely attached along a length direction of the jib body; when the jib body has a crack, the conductive detection element closely attached on the external surface of the jib body is snapped, so current in the conductive detection element is zero or small, which excites the alarm device to sound an alarm, thereby reminding operation personnel to repair or replace a jib with a crack in time and preventing fracture of the jib caused by continued enlargement of the crack.
Description
Technical field
The utility model relates to the arm support safe field, in particular to a kind of arm support safe prior-warning device and have its jib.
Background technology
In recent years, a lot of pumping vehicle arm rack fracture accidents of generation cause larger economic loss and more abominable social influence.Trace it to its cause, be mainly due to present concrete mixer to the design direction development of overlength jib, equal life, the weight by constantly alleviating each jib to be obtaining jib, thereby makes the weight of whole ledge lighter.But this design causes the arm support safe coefficient to diminish, and can not adopt large more than needed, high safety factor design as the traditional design mode.The ultimate limit state of considering when the jib that safety coefficient is lower can cause jib state at work to surpass design due to factors such as fault in material, manufacturing defect or improper uses, just might cause the jib fracture, have larger potential safety hazard, in the urgent need to a kind of can be to the prior-warning device of arm support safe early warning.
The utility model content
The utility model aims to provide and a kind ofly can the arm support safe prior-warning device of crackle alarm occur and have its jib at jib, in order in time remind operating personnel to the jib reparation of crackle occurring, thereby avoids the jib fracture accident.
One side of the present utility model provides a kind of arm support safe prior-warning device, comprise power supply, warning device and conductivity detection element, the conductivity detection element along the length direction of jib body extend and be bonded in the jib body the surface and with jib body insulation isolation, the electric current of warning device in the conductivity detection element is less than the first preset value or be zero alarm.
Further, the conductivity detection element comprises the outside surface that is arranged on ringwise the jib body or the conductive loop on inside surface.
Further, the arm support safe prior-warning device also comprise detect size of current and in conductive loop electric current start the current sensing means of warning device less than the first preset value or when being zero.
Further, the arm support safe prior-warning device also comprises the apparatus for monitoring power supply of the electric weight of monitoring power supply.
Further, apparatus for monitoring power supply comprises electricity quantity monitoring device and works as electric weight less than the electric quantity warning device of the second preset value alarm.
Further, the arm support safe prior-warning device also comprises the current controller of controlling size of current in conductive loop.
Further, conductive loop is conductive filament or conducting strip or conducting metal paint.
Further, conductive loop is arranged on the boss of jib body or in groove.
Further, warning device comprises alarm lamp and/or alarming horn.
Of the present utility modelly also provide on the other hand a kind of jib, comprised a plurality of interconnective jib bodies, the outside surface of jib body is provided with aforesaid arm support safe prior-warning device.
According to arm support safe prior-warning device of the present utility model and have its jib, by being close to the conductivity detection element along the length direction of jib body, when crackle appears in the jib body, the conductivity detection element that is close to outside surface is broken, thereby causing the electric current in the conductivity detection element is zero or minimum, and excite warning device to report to the police, thus remind the timely reparation of operating personnel or change the jib that crackle occurs, prevent that crackle from continuing to enlarge and causing jib to rupture.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the perspective view that has the jib of arm support safe prior-warning device according to of the present utility model;
Fig. 2 is the partial enlarged drawing at label I place in Fig. 1;
Fig. 3 is cross-sectional structure schematic diagram in Fig. 1;
Fig. 4 is the cross-sectional structure schematic diagram of conductivity detection element;
Fig. 5 is the cross-sectional structure schematic diagram according to another embodiment of the jib with arm support safe prior-warning device of the present utility model.
Embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As depicted in figs. 1 and 2, according to arm support safe prior-warning device of the present utility model, comprise power supply 22, warning device 23 and conductivity detection element, the conductivity detection element along the length direction of jib body 10 extend and stick on jib body 10 the surface and with the 10 insulation isolation of jib body, the electric current of warning device 23 in the conductivity detection element is less than the first preset value or be zero alarm.The utility model is by being close to the conductivity detection element along the length direction of jib body 10, when crackle appears in jib body 10, the conductivity detection element that is close to outside surface is broken, thereby causing the electric current in the conductivity detection element is zero or minimum, and excite warning device 23 to report to the police, operating personnel are timely to repair or changes the jib that crackle occurs thereby remind, and prevents that crackle from continuing to enlarge and causing jib to rupture.Usually, warning device 23 can adopt alarm lamp or alarming horn, also alarm lamp and alarming horn can be set simultaneously, thereby can cause that more operating personnel note.
The conductivity detection element comprises outside surface or the conductive loop on inside surface 21 that is arranged on ringwise jib body 10, and preferably, as shown in Figure 1, conductive loop 21 is arranged on the outside surface of jib body 10, is convenient to install and detect.As shown in Figure 1, conductive loop 21 is along the edge setting of jib body 10 sides, when as long as crackle appears in jib body 10, the conductive loop 21 that is close to outside surface will be broken, the loop of whole conducting is disconnected, causing in conductive loop 21 electric current is zero or minimum, makes warning device 23 report to the police to warn operating personnel.
As shown in Figure 2, the arm support safe prior-warning device also comprises current sensing means 24, electric current in 24 pairs of conductive loops 21 of current sensing means detects, when the electric current in conductive loop 21 less than the first preset value or when being zero, excite warning device 23 to report to the police, the utility model is monitored the jib state by the means that detect electric current in conductive loop 21, when crackle appears in jib, can break conductive loop 21, thereby cause conductive loop 21 curent changes huge, Standard of Monitoring is clear and definite, is easy to realize, thereby makes accuracy higher.
22 pairs of whole arm support safe prior-warning device power supplies of power supply comprise conductive loop 21, warning device 23 etc., and power supply 22 can adopt button cell or other accumulators etc.The arm support safe prior-warning device also comprises apparatus for monitoring power supply 25, thereby to the condition monitoring of power supply 22, prevents from causing whole arm support safe prior-warning device malfunctioning after power supply 22 from not having electricity.Apparatus for monitoring power supply 25 mainly comprises electricity quantity monitoring device 25a and the electric quantity warning device 25b of monitoring power supply 22 electric weight, when electric weight during less than the second preset value, electric quantity warning device warning 25b, thereby remind operating personnel in time to change power supply 22, guarantee that whole arm support safe prior-warning device is operated in reliable state.
Preferably, as shown in Figure 2, the arm support safe prior-warning device also comprises current controller 26, control size of current in conductive loop 21 by current controller 26, guarantee that electric current can be not excessive, extend power using time, prevent also that electric current is too small and impact detects, on the other hand, current controller 26 can also prevent because vibration of arm or other factors cause in conductive loop 21 current fluctuation excessive, and causes warning device 23 wrong reports.
The installation of conductive loop 21 must first be carried out insulation on jib body 10, namely conductive loop 21 must be isolated with 10 insulation of jib body, and as shown in Figure 4, conductive layer 21a is insulated a layer 21b parcel, thereby prevents that the 10 pairs of conductive loops of jib body 21 that conduct electricity from forming interference.When using conductive filament, conducting strip making conductive loop 21, the diameter of conductive filament is 0.2mm to 0.5mm, conducting strip thickness is 0.1mm to 0.5mm, can first carry out insulation processing to it, and then sticking on jib tightly, pasting must be firmly, and when guaranteeing that namely fracture appears in jib, conductive loop 21 is broken.Preferably, can carry out pretension to conductive filament, conducting strip and process, conductive filament, conducting strip are approached or reach yield limit, eliminate the elastic deformation of conductive filament, conducting strip, thereby when guaranteeing that crackle appears in the ledge body, conductive filament, conducting strip is easier is broken.
When making conductive loop 21 when using the conducting metal paint, need first jib body 10 to be done insulation, available insulating gel, insulating gel needs easy fracture, the position of first laying conductive loop 21 on jib body 10 is coated with one deck insulating gel, and then spray equably 5mm on insulating gel to the wide metallic paint of 10mm, thickness 0.2mm to 0.5mm, also needing to do insulation at the metallic paint upper surface processes, the width of spray metallic paint can be regulated, and the position of spray metallic paint can be opened shallow slot or boss is set in the zone that needs early warning in advance.As shown in Figure 3, preferably mode for offering shallow slot, is arranged in conductive loop 21 in shallow slot, can form certain protection to conductive loop 21, prevents that jib from causing conductive loop 21 scratches or damage in work progress.Also can adopt the outside surface that is set directly at jib body 10 as shown in Figure 5.
When jib was normal, conductive loop 21 electric currents were unobstructed, can not report to the police, and by electricity quantity monitoring device 25a monitoring power supply 22 electric weight, when electric weight was not enough, electric quantity warning device 25b reported to the police, and operating personnel change power supply 22 according to alarm.When crackle or part fracture appear in jib, when the width of crackle during greater than the tension length of conductive loop 21, conductive loop 21 is namely broken, current sensing means 24 detect do not have in loop electric current or electric current minimum, be that electric current is during less than the first preset value, namely activate warning device 23, the alarm lamp flicker, alarming horn sends chimes of doom.Control size of current by current controller 26 during normal operation, keep current stabilization, and the long-time use of assurance power supply 22 and easily detection property.
The utility model also provides a kind of jib, comprise a plurality of interconnective jib bodies 10, the outside surface of each jib body 10 is provided with aforesaid arm support safe prior-warning device, when crackle appears in certain jib body 10, the arm support safe prior-warning device that is arranged on this jib body 10 is reported to the police, determine the jib body 10 that goes wrong according to alert locations, thereby be convenient in time repair or change.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
According to arm support safe prior-warning device of the present utility model and have its jib, paste conductive loop by the length direction along jib body 10, when crackle appears in jib body 10, the conductive loop that sticks on outside surface is broken, thereby causing the electric current in conductive loop is zero or minimum, and excite warning device to report to the police, to remind the timely reparation of operating personnel or to change the jib that crackle occurs, prevent that crackle from continuing to enlarge and causing jib to rupture.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. arm support safe prior-warning device, it is characterized in that, comprise power supply (22), warning device (23) and conductivity detection element, described conductivity detection element along the length direction of jib body (10) extend and be bonded in described jib body (10) the surface and with described jib body (10) insulation isolation, the electric current of described warning device (23) in described conductivity detection element is less than the first preset value or be zero alarm.
2. arm support safe prior-warning device according to claim 1, is characterized in that,
Described conductivity detection element comprises outside surface or the conductive loop on inside surface (21) that is arranged on ringwise described jib body (10).
3. arm support safe prior-warning device according to claim 2, is characterized in that,
Described arm support safe prior-warning device also comprise detect size of current and in described conductive loop (21) electric current start the current sensing means (24) of described warning device (23) less than described the first preset value or when being zero.
4. arm support safe prior-warning device according to claim 2, is characterized in that,
Described arm support safe prior-warning device also comprises the apparatus for monitoring power supply (25) of the electric weight of the described power supply of monitoring (22).
5. arm support safe prior-warning device according to claim 4, is characterized in that,
Described apparatus for monitoring power supply (25) comprises electricity quantity monitoring device (25a) and works as electric weight less than the electric quantity warning device (25b) of the second preset value alarm.
6. arm support safe prior-warning device according to claim 2, is characterized in that,
Described arm support safe prior-warning device also comprises the current controller (26) of controlling size of current in described conductive loop (21).
7. arm support safe prior-warning device according to claim 2, is characterized in that,
Described conductive loop (21) is conductive filament or conducting strip or conducting metal paint.
8. arm support safe prior-warning device according to claim 7, is characterized in that,
Described conductive loop (21) is arranged on the boss of described jib body (10) or in groove.
9. arm support safe prior-warning device according to claim 2, is characterized in that,
Described warning device (23) comprises alarm lamp and/or alarming horn.
10. a jib, comprise a plurality of interconnective jib bodies (10), it is characterized in that, the outside surface of described jib body (10) is provided with the described arm support safe prior-warning device of any one in claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655201 CN202976392U (en) | 2012-12-03 | 2012-12-03 | Jib safety pre-warning apparatus and jib with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655201 CN202976392U (en) | 2012-12-03 | 2012-12-03 | Jib safety pre-warning apparatus and jib with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202976392U true CN202976392U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220655201 Withdrawn - After Issue CN202976392U (en) | 2012-12-03 | 2012-12-03 | Jib safety pre-warning apparatus and jib with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202976392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968879A (en) * | 2012-12-03 | 2013-03-13 | 中联重科股份有限公司 | Cantilever crane safety forewarning device and cantilever crane with same |
| JP2018115453A (en) * | 2017-01-17 | 2018-07-26 | 住友重機械工業株式会社 | Shovel |
-
2012
- 2012-12-03 CN CN 201220655201 patent/CN202976392U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968879A (en) * | 2012-12-03 | 2013-03-13 | 中联重科股份有限公司 | Cantilever crane safety forewarning device and cantilever crane with same |
| CN102968879B (en) * | 2012-12-03 | 2015-02-11 | 中联重科股份有限公司 | Cantilever crane safety forewarning device and cantilever crane with same |
| JP2018115453A (en) * | 2017-01-17 | 2018-07-26 | 住友重機械工業株式会社 | Shovel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20150211 |
|
| RGAV | Abandon patent right to avoid regrant |