CN201247406Y - Infrared control safety device for loader - Google Patents
Infrared control safety device for loader Download PDFInfo
- Publication number
- CN201247406Y CN201247406Y CNU2008201850817U CN200820185081U CN201247406Y CN 201247406 Y CN201247406 Y CN 201247406Y CN U2008201850817 U CNU2008201850817 U CN U2008201850817U CN 200820185081 U CN200820185081 U CN 200820185081U CN 201247406 Y CN201247406 Y CN 201247406Y
- Authority
- CN
- China
- Prior art keywords
- infrared
- infrared receiving
- logic controller
- lift truck
- lift car
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model relates to an infrared control safe device for a lift car, which comprises two sets of infrared transmitting tubes and infrared receiving pipes, a comparison amplifying circuit and a control circuit, wherein the infrared transmitting tubes and infrared receiving pipes are arranged on the two ends of the two sides of the lower surface of a flat plate of the lift car, the comparison amplifying circuit compares signals of the two infrared receiving pipes to amplify, and two amplified signals are communicated with 24V by the control circuit through that the input end of a PLC program logic controller is controlled by a normal open switch of two relays. The lift car immediately stops working through the logic program in the inner portion of the PLC program logic controller, thereby effectively increasing the safety of equipment, and precluding contingencies.
Description
Technical field
The utility model relates to the infrared safety control of a kind of lift truck.
Background technology
Last procedure of twisted wire production line be the layer around, the dolly that a mobile lifting is arranged in the process of finished product up and down, the phenomenon that pin is forced into will take place when out of control in operator's careless slightly or action button in the process that the operation dolly descends, thereby causes the existence of accident potential.
Summary of the invention
The purpose of this utility model is exactly in order to overcome the above problems, whether to be kept off the lift truck infrared control safety feature of controlling and provide a kind of by detecting dolly two base infrared rays.
The technical solution of the utility model is like this design: a kind of lift truck infrared control safety feature is characterized in: it comprises the comparison amplifying circuit that is installed in the two infrared power valves of cover on the end positions of both sides and infrared receiving tube below lift truck dull and stereotyped, two infrared receiving tube signals are compared and enlarged respectively, two amplifying signals are controlled the control circuit of connecting between PLC program logic controller input end and the 24V by two relay normally open switch.
The utility model has or not after by infrared foreign matter to block infrared ray to control the lift truck operation and stop, and is effective, invests little, safe.
Description of drawings
Fig. 1 is infrared emission of the present utility model and receiver pope installation site figure.
Fig. 2 is a fundamental diagram of the present utility model.
Among the figure 1, a hydraulic cylinder 2, b hydraulic cylinder 3, A infrared transmitting tube 4, A infrared receiving tube 5, lift truck 6, ground 7, amplification control circuit K1---A group relay normal open switch K2---B group relay normal open switch PLC---program logic controller relatively
Embodiment
From Fig. 1, Fig. 2 as seen, lift truck 5 is positioned at the tunnel of ground surface below 6, and it can move left and right and oscilaltion work, and move left and right is by motor traction work, and oscilaltion pushes the work forward by a hydraulic cylinder 1 and b hydraulic cylinder 2.On the both sides end positions below lift truck 5 dull and stereotyped a cover A infrared transmitting tube 3, A infrared receiving tube 4 and another set of B infrared transmitting tube, B infrared receiving tube are installed respectively, these two devices have or not after by infrared foreign matter (as people's pin) to block infrared ray to control lift truck and move and stop.Two infrared receiving tube signal A, B are connected to comparison amplification control circuit 7, two sampled signals of sending here are compared, amplify back control A group relay normal open switch K1 and B group relay normal open switch K2 respectively, and A group relay normal open switch K1 and B group relay normal open switch K2 are connected to power supply 24V the input end of PLC program logic controller respectively.Which side has foreign matter to stop that infrared ray all will cause the relay normally open switch closure, with 24 input ends that are switched to the PLC program logic controller, thereby the logical program by PLC program logic controller inside quits work lift truck immediately, effectively improve the security of equipment, stopped the generation of mishap.
Claims (1)
1, a kind of lift truck infrared control safety feature is characterized in that: it comprises the comparison amplifying circuit that is installed in the two infrared power valves of cover on the end positions of both sides and infrared receiving tube below lift truck dull and stereotyped, two infrared receiving tube signals are compared and enlarged respectively, with the control circuit of two amplifying signals by connecting between two relay normally open switches control PLC program logic controller input end and the 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201850817U CN201247406Y (en) | 2008-08-22 | 2008-08-22 | Infrared control safety device for loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201850817U CN201247406Y (en) | 2008-08-22 | 2008-08-22 | Infrared control safety device for loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201247406Y true CN201247406Y (en) | 2009-05-27 |
Family
ID=40731228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201850817U Expired - Lifetime CN201247406Y (en) | 2008-08-22 | 2008-08-22 | Infrared control safety device for loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201247406Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102999000A (en) * | 2012-12-07 | 2013-03-27 | 武汉理工大学 | Safe monitoring device for intelligent brick unloading machine |
-
2008
- 2008-08-22 CN CNU2008201850817U patent/CN201247406Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102999000A (en) * | 2012-12-07 | 2013-03-27 | 武汉理工大学 | Safe monitoring device for intelligent brick unloading machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Aosheng (Jiujiang) Steel Wire & Cable Co., Ltd. Assignor: Ossen Innovation Materials Co., Ltd. Contract fulfillment period: 2009.5.30 to 2014.5.30 Contract record no.: 2009360000057 Denomination of utility model: Infrared control safety device for loader Granted publication date: 20090527 License type: Exclusive license Record date: 20090827 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.5.30 TO 2014.5.30; CHANGE OF CONTRACT Name of requester: ORSUS( JIUJIANG )WIREROPE CO., LTD. Effective date: 20090827 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090527 |
|
| CX01 | Expiry of patent term |