CN205500691U - Hydraulic lifting platform's limit for height protection system - Google Patents
Hydraulic lifting platform's limit for height protection system Download PDFInfo
- Publication number
- CN205500691U CN205500691U CN201620107248.2U CN201620107248U CN205500691U CN 205500691 U CN205500691 U CN 205500691U CN 201620107248 U CN201620107248 U CN 201620107248U CN 205500691 U CN205500691 U CN 205500691U
- Authority
- CN
- China
- Prior art keywords
- light source
- receiving terminal
- limit
- protection system
- height
- 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 - Fee Related
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a hydraulic lifting platform's limit for height protection system belongs to the photo -electric control field. The utility model discloses a hydraulic lifting platform's limit for height protection system, including pulse generator circuit, light source, receiving terminal and signal receiving and processing circuit, pulse generator circuit and light source electricity be connected, light source and receiving terminal locate the both sides of hydraulic lifting platform's limit for height protection position respectively, and light source and receiving terminal set up relatively, receiving terminal and signal receiving and processing circuit electricity be connected, light source and receiving terminal be correlation formula photoelectric switch, the light source be pulse type light source. The utility model discloses a correlation formula photoelectric switch carries out the signal and judges that do not need mechanical type direct contact, the mounted position is unrestricted to also can move by the execute protection when protection system breaks down, safe and reliable just after protection system breaks down, easily resets more.
Description
Technical field
This utility model relates to a kind of whistle control system, more particularly, it relates to the limit for height protection of a kind of hydraulic elevating platform is
System.
Background technology
On the hydraulic elevating platform of work automatically, limit for height protection whistle control system is installed and is extremely necessary.In existing skill
In art, using more method mainly to have two kinds, a kind of is to be judged, by the signal of master devices collection sensor the most again
Controlling relevant hydraulic unit execution action, this mode is more convenient, but presence sensor inefficacy or sensor line fault etc.
Problem, reliability is relatively low；Another kind is the passive contact of travel switch to concatenate the mair motor into hydraulic pump control loop and electromagnetism
Valve controls to realize in loop protection, and this mode is the most reliable, but owing to the control loop of hydraulic system is cut off,
Reset extremely inconvenience.
Summary of the invention
1. utility model to solve the technical problem that
The purpose of this utility model is to overcome deficiencies of the prior art, it is provided that the limit for height of a kind of hydraulic elevating platform is protected
Protecting system, uses the technical solution of the utility model, uses correlation photoswitch to carry out signal judgement, it is not necessary to mechanical type is straight
Contact, installation site is unrestricted, and also can perform protection act when protecting system malfunctions, more safe and reliable,
And after protection system malfunctions, it is easy to reset.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that this utility model provides is:
A kind of hydraulic elevating platform of the present utility model limit for height protection system, including pulse power supply circuit, light source, receiving terminal and
Signal receiving processing circuit, described pulse power supply circuit electrically connects with light source, and described light source and receiving terminal are respectively arranged on hydraulic pressure
The both sides of the limit for height protective position of hoistable platform, and light source is oppositely arranged with receiving terminal, described receiving terminal processes with signal reception
Circuit electrically connects.
Further, described light source and receiving terminal are correlation photoswitch.
Further, described light source is pulse type light source.
3. beneficial effect
The technical scheme using this utility model to provide, compared with existing known technology, has the advantages that
The limit for height protection system of a kind of hydraulic elevating platform of the present utility model, its pulse power supply circuit electrically connects with light source, light source
It is respectively arranged on the both sides of the limit for height protective position of hydraulic elevating platform with receiving terminal, and light source is oppositely arranged with receiving terminal, receiving terminal
Electrically connect with signal receiving processing circuit, use correlation photoswitch to carry out signal judgement, do not have in the middle of light source with receiving terminal
During barrier, receiving terminal output pulse signal, system can determine whether out that limit for height protection system is in course of normal operation, if light
Having barrier in the middle of source and receiving terminal, receiving terminal does not has pulse signal to produce the most within a certain period of time, then system is judged as that limit for height is protected
Protecting signal to come into force, system performs protection act, it is not necessary to mechanical type directly contacts, and installation site is unrestricted；Further, protecting
When protecting system breaks down, receiving terminal does not receives pulse signal yet, it also hold that limit for height protection signal comes into force, can perform guarantor yet
Protect action, more safe and reliable；After protection system malfunctions, can be by software masking limit for height protection signal, hand-reset,
Reset simple and convenient.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the limit for height protection system of a kind of hydraulic elevating platform of the present utility model.
Label declaration in schematic diagram:
1, pulse power supply circuit；2, light source；3, receiving terminal；4, signal receiving processing circuit.
Detailed description of the invention
For further appreciating that content of the present utility model, in conjunction with accompanying drawing, this utility model is described in detail.
Fig. 1 is the principle schematic of the limit for height protection system of a kind of hydraulic elevating platform of the present utility model, as it can be seen, this reality
By novel limit for height protection system, including pulse power supply circuit 1, light source 2, receiving terminal 3 and signal receiving processing circuit 4, arteries and veins
Rushing power circuit 1 to electrically connect with light source 2, light source 2 and receiving terminal 3 are respectively arranged on the limit for height protective position of hydraulic elevating platform
Both sides, and light source 2 is oppositely arranged with receiving terminal 3, receiving terminal 3 electrically connects with signal receiving processing circuit 4.This utility model
Realizing system signal by light source 2 and receiving terminal 3 to export, by the judgement to output signal, can control hydraulic elevating platform is
No execution protection act.
Below in conjunction with embodiment, the utility model will be further described.
Embodiment
As it is shown in figure 1, the limit for height protection system of a kind of hydraulic elevating platform of the present embodiment, including pulse power supply circuit 1, light
Source 2, receiving terminal 3 and signal receiving processing circuit 4, pulse power supply circuit 1 is used for producing the pulse power, pulse power supply circuit 1
Electrically connect with light source 2, for driving light source 2 to send the light of interruption；Light source 2 and receiving terminal 3 are respectively arranged on hydraulic elevating platform
The both sides of limit for height protective position, and light source 2 is oppositely arranged with receiving terminal 3, and receiving terminal 3 receives the interruption that light source 2 sends
Output pulse signal after optical signal, receiving terminal 3 electrically connects with signal receiving processing circuit 4, and signal receiving processing circuit 4 docks
The pulse signal received processes, it is judged that whether light source 2 is blocked, and then judges whether have barrier to reach setting
Height.Above-mentioned light source 2 is correlation photoswitch with receiving terminal 3, and light source 2 is pulse type light source.
The limit for height protection system of a kind of hydraulic elevating platform of the present embodiment, during work, light source 2 and receiving terminal 3 are respectively arranged on liquid
On the limit for height position of pressure hoistable platform, it is not necessary to mechanical type directly contacts, installation site is easy to select, when there being barrier (lifting
Material on platform or hoistable platform) arrive when blocking, between light source 2 and receiving terminal 3, the optical signal that light source 2 sends, system
Can judge to protect signal to come into force, thus perform protection act.And when there is no barrier between light source 2 and receiving terminal 3, receive
End 3 can receive the optical signal of the interruption that light source 2 is sent, and illustrates that hydraulic elevating platform is in normal operating conditions.Additionally,
When limit for height protection system malfunctions, receiving terminal 3 also cannot receive the optical signal that light source 2 is sent, thus be recognized as
Protection signal comes into force, and waits that artificial judgment processes after performing protection act；After failture evacuation, software masking pulse signal can be passed through
Rear hand-reset, more safe and reliable, reset simple and convenient.
The limit for height protection system of a kind of hydraulic elevating platform of the present utility model, uses correlation photoswitch to carry out signal judgement,
Need not mechanical type directly contact, installation site is unrestricted, and also can perform protection act when protecting system malfunctions,
More safe and reliable, and after protection system malfunctions, it is easy to reset.
Below being schematically described this utility model and embodiment thereof, this description does not has restricted, shown in accompanying drawing
Be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area is common
Technical staff is enlightened by it, in the case of creating objective without departing from this utility model, without creatively designing and this technology
Frame mode that scheme is similar and embodiment, all should belong to protection domain of the present utility model.
Claims (3)
1. a hydraulic elevating platform limit for height protection system, it is characterised in that: include pulse power supply circuit (1), light source (2),
Receiving terminal (3) and signal receiving processing circuit (4), described pulse power supply circuit (1) electrically connects with light source (2), described
Light source (2) and receiving terminal (3) be respectively arranged on the both sides of limit for height protective position of hydraulic elevating platform, and light source (2) with connect
Receiving end (3) is oppositely arranged, and described receiving terminal (3) electrically connects with signal receiving processing circuit (4).
The limit for height protection system of a kind of hydraulic elevating platform the most according to claim 1, it is characterised in that: described light source
(2) with receiving terminal (3) be correlation photoswitch.
The limit for height protection system of a kind of hydraulic elevating platform the most according to claim 2, it is characterised in that: described light source
(2) it is pulse type light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620107248.2U CN205500691U (en) | 2016-02-02 | 2016-02-02 | Hydraulic lifting platform's limit for height protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620107248.2U CN205500691U (en) | 2016-02-02 | 2016-02-02 | Hydraulic lifting platform's limit for height protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205500691U true CN205500691U (en) | 2016-08-24 |
Family
ID=56725478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620107248.2U Expired - Fee Related CN205500691U (en) | 2016-02-02 | 2016-02-02 | Hydraulic lifting platform's limit for height protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205500691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502224A (en) * | 2016-02-02 | 2016-04-20 | 江苏豪林自动化科技有限公司 | Height limited protection system of hydraulic lifting platform |
| CN107988957A (en) * | 2017-11-21 | 2018-05-04 | 浙江工业大学 | Tide track altering system and method based on optoelectronic scanning avoidance |
-
2016
- 2016-02-02 CN CN201620107248.2U patent/CN205500691U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502224A (en) * | 2016-02-02 | 2016-04-20 | 江苏豪林自动化科技有限公司 | Height limited protection system of hydraulic lifting platform |
| CN107988957A (en) * | 2017-11-21 | 2018-05-04 | 浙江工业大学 | Tide track altering system and method based on optoelectronic scanning avoidance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205500691U (en) | Hydraulic lifting platform's limit for height protection system | |
| CN104332774A (en) | Socket capable of detecting external leakage voltage | |
| CN203740535U (en) | Fault location device integrated in scram lock switch | |
| CN105135691A (en) | Electric water heater intelligent control system | |
| CN204832980U (en) | Tertiary drainage system based on intelligent control | |
| CN204652727U (en) | Remote monitor system for road lamp | |
| CN104847641A (en) | Underground drainage pump automatic control device | |
| CN206990771U (en) | L ED power supply fault detection device | |
| CN102275850A (en) | Operating personnel protective device for ascending equipment | |
| CN202165085U (en) | Infrared light control emergency stop device of roadheader | |
| CN205068118U (en) | Safety control device for machine tool | |
| CN101539288A (en) | Controller for electric heating steam generator | |
| CN205380570U (en) | Numerically control grinder cooling water control system | |
| CN204212960U (en) | Intelligent and high-efficiency control system of water pump | |
| CN204065738U (en) | Hot water cleaning machine intelligent central control system | |
| CN105502224A (en) | Height limited protection system of hydraulic lifting platform | |
| CN204216335U (en) | The socket of outside electrical leakage voltage can be detected | |
| CN104319731A (en) | Power supply control device capable of detecting external electric leakage voltage | |
| CN203946768U (en) | Staircase control setup | |
| CN205367446U (en) | Safety switch and staircase flood control safe operation system that adopts it for staircase | |
| CN206158915U (en) | A lose electronic type no. 3 of doing and select two guard signal circuit for protecting hydraulic generator | |
| CN205811294U (en) | The interim safe power distribution box of engineering | |
| CN106896764B (en) | The double mcu closed loop control method of remote control receiver | |
| CN206925870U (en) | A kind of wu-zhi-shan pig jerk recovers control loop | |
| CN105110161A (en) | Escalator with safety stopping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20200202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |