CN205442420U - Safe master switch who uses on tower machine - Google Patents
Safe master switch who uses on tower machine Download PDFInfo
- Publication number
- CN205442420U CN205442420U CN201521132300.1U CN201521132300U CN205442420U CN 205442420 U CN205442420 U CN 205442420U CN 201521132300 U CN201521132300 U CN 201521132300U CN 205442420 U CN205442420 U CN 205442420U
- Authority
- CN
- China
- Prior art keywords
- action bars
- contact
- handle
- pull bar
- flexible axle
- 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.)
- Withdrawn - After Issue
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- Control And Safety Of Cranes (AREA)
Abstract
The utility model provides a safe master switch who uses on tower machine, including last handle, soft axial tension pole, lower handle, the telescoping device, the action bars, contact means and semi -axis, the lower extreme of action bars is fixed on the semi -axis, the handle is emboliaed to the upper end of action bars, down the handle from top to bottom gliding connection on the action bars and lie in the lower part of handle, soft axial tension pole is gliding the installation in the inside of action bars from top to bottom, go up the handle and be provided with the telescoping device down between the handle, contact means sets up in the lower extreme of soft axial tension pole, thereby press the contact slider control tower machine system circuit's on the contact break -make through the upper and lower slip of soft axial tension pole, the utility model discloses a set up contact means on the master switch of tower machine, through the break -make that control contact means comes the whole circuit of control tower machine, take place other external force such as stupor as the people can not control factor the time, as long as openhanded division, the action bars can all make the machine stop in any position, realization safety protection.
Description
Technical field
This utility model relates to tower crane equipment technical field, is specifically related in a kind of tower crane the safe control switch used.
Background technology
General tower crane is all controlled by master controller, during operation, mentions lower handle manipulation operations bar, and tower crane begins to action, but tower crane stopping action to be made, and action bars homing, i.e. action bars first must be allowed to keep vertical position；That is when operation, i.e. action bars with vertical angled time, tower crane can not be allowed to stop, this will result in certain potential safety hazard, such as operator's stupor, death etc., now, owing to people loses consciousness, if the tower crane that work can not be allowed is out of service, then it is possible that serious consequence.
Utility model content
This utility model provides the safe control switch used in a kind of tower crane, solves the problem that in prior art, the shutdown operation of tower crane exists above-mentioned hidden danger.
This utility model realizes above-mentioned technique effect and be the technical scheme is that
A kind of safe control switch used in tower crane, including upper handle, flexible axle pull bar, lower handle, retractor device, action bars, contact apparatus and semiaxis, the lower end of described action bars is fixed on semiaxis, upper handle is inserted in the upper end of described action bars, described lower handle can slide up and down and is connected on action bars and is positioned at the bottom of upper handle, described flexible axle pull bar can slide up and down and is installed on the inside of action bars, it is provided with retractor device between described upper handle and lower handle, described contact apparatus is arranged at the lower end of flexible axle pull bar, described device includes contact pedestal, the contact being arranged on contact pedestal and be arranged on contact the contact slide block for controlling the whole connecting and disconnecting of the circuit of tower crane system, by described flexible axle pull bar slide up and down pressing contact on contact slide block thus control the break-make of tower crane circuit system.
Further, described retractor device includes the slot on action bars upper end, the circular hole of flexible axle pull bar upper end, elastic cylindrical pin and spring, described action bars and flexible axle pull bar are connected with each other and make flexible axle pull bar to be limited in slot through slot and circular hole to slide up and down by described elastic cylindrical pin, described spring is placed on action bars upper end and one end and contacts connection with upper handle, the other end is connected with elastic cylinder pin contacts, when lower handle is up carried, lower handle drives elastic cylindrical pin then to drive flexible axle pull bar up to move, when unclamping hands, promoting elastic cylindrical pin to move downward then by the effect of spring drives flexible axle pull bar down to move.
Further, the two ends of described flexible axle pull bar are provided with the termination of rigidity, are provided with Bowden cable between the described termination at two ends.
Further, described contact is normally closed interlock.
According to above technical scheme, when lower handle is not mentioned, by the active force of spring, press under flexible axle pull bar, contact slide block jacking on the contact of flexible axle pull bar lower end is gone, normally closed interlock is made to disconnect, and then make the whole circuit of tower crane disconnect, now, even if manipulation operations bar, tower crane also will not make corresponding action, and when mentioning lower handle, flexible axle pull bar is also brought up, owing to contact slide block is not under pressure, contact slide block is by the spring ejection within contact, return to normality, contact closure, the whole circuit making tower crane is connected, tower crane recovers normal duty.
The beneficial effects of the utility model are: this utility model is by arranging contact apparatus on the control switch of tower crane; the break-make of the whole circuit of tower crane is controlled by controlling contact apparatus; when there is the uncontrollable factors of other external force such as stupor as people; as long as hands unclamps; action bars can make machine stop in any position, it is achieved safeguard protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the safe control switch used in a kind of tower crane of the present utility model；
In figure: 1-upper handle；2-flexible axle pull bar；3-lower handle；5-action bars；6-contact apparatus；7-semiaxis；8-slot；9-circular hole；10-elastic cylindrical pin；11-spring；12-contact；13-contact slide block.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Embodiment 1
nullAs shown in Figure 1，A kind of safe control switch used in tower crane，Including upper handle 1、Flexible axle pull bar 2、Lower handle 3、Retractor device、Action bars 5、Contact apparatus 6 and semiaxis 7，The lower end of action bars 5 is fixed on semiaxis 7，Upper handle 1 is inserted in the upper end of action bars 5，Lower handle 3 can slide up and down and is connected on action bars 5 and is positioned at the bottom of upper handle 1，Flexible axle pull bar 2 can slide up and down and is installed on the inside of action bars 5，It is provided with retractor device between upper handle 1 and lower handle 3，Retractor device includes the slot 8 on action bars upper end、The circular hole 9 of flexible axle pull bar upper end、Elastic cylindrical pin 10 and spring 11，Described action bars 5 and flexible axle pull bar 2 are connected with each other and make flexible axle pull bar to be limited in slot through slot 8 and circular hole 9 to slide up and down by elastic cylindrical pin 10，Spring 11 is placed on action bars 5 upper end and one end and contacts connection with upper handle 1，The other end contacts connection with elastic cylindrical pin 10，When lower handle 3 is up carried，Lower handle 3 drives elastic cylindrical pin 10 then to drive flexible axle pull bar 2 up to move，When unclamping hands，Promoting elastic cylindrical pin 10 to move downward then by the effect of spring 11 drives flexible axle pull bar down to move，Contact apparatus is arranged at the lower end of flexible axle pull bar，Including contact pedestal、The contact 12 that is arranged on contact pedestal and be arranged on contact the contact slide block 13 for controlling the whole connecting and disconnecting of the circuit of tower crane system，Contact 12 is normally closed interlock，Under normal conditions，Contact 12 is Guan Bi，By described flexible axle pull bar 2 slide up and down pressing contact on contact slide block 13 thus control the break-make of tower crane circuit system，The two ends of described flexible axle pull bar 2 are provided with the termination of rigidity，It is provided with Bowden cable between the described termination at two ends，Therefore，When lower handle is not mentioned，Can also manipulation operations bar，Now pull bar bending，But owing to contact is off，The whole circuit of tower crane disconnects，So tower crane also will not action.
During installation, flexible axle pull bar 2 first pierces into the inside of action bars 5, the slot 8 of action bars 5 aligns with the circular hole 9 of flexible axle pull bar, elastic cylindrical pin 10 is driven in the circular hole of flexible axle pull bar 2, making flexible axle pull bar 2 be limited in the slot 8 of action bars upper end, flexible axle pull bar 2 can move up and down in the range of slot 8 inside action bars；Again after spring is put in action bars 5 upper end, screw in upper handle.
When lower handle 3 is not mentioned, active force by spring 11, flexible axle pull bar is pressed for 2 times, contact slide block 13 jacking on the contact of flexible axle pull bar 2 lower end is gone, normally closed interlock is made to disconnect, and then make the whole circuit of tower crane disconnect, now, even if manipulation operations bar 5, tower crane also will not make corresponding action, and when mentioning lower handle 3, flexible axle pull bar 2 is also brought up, owing to contact slide block 13 is not under pressure, contact slide block 13 is by the spring ejection within contact, return to normality, contact closure, the whole circuit making tower crane is connected, tower crane recovers normal duty.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (4)
1. the safe control switch used in a tower crane, including upper handle, flexible axle pull bar, lower handle, retractor device, action bars, contact apparatus and semiaxis, it is characterized in that, the lower end of described action bars is fixed on semiaxis, upper handle is inserted in the upper end of described action bars, described lower handle can slide up and down and is connected on action bars and is positioned at the bottom of upper handle, described flexible axle pull bar can slide up and down and is installed on the inside of action bars, it is provided with retractor device between described upper handle and lower handle, described contact apparatus is arranged at the lower end of flexible axle pull bar, described device includes contact pedestal, the contact being arranged on contact pedestal and be arranged on contact the contact slide block for controlling the whole connecting and disconnecting of the circuit of tower crane system, by described flexible axle pull bar slide up and down pressing contact on contact slide block thus control the break-make of tower crane circuit system.
The safe control switch used in a kind of tower crane the most according to claim 1, it is characterized in that, described retractor device includes the slot on action bars upper end, circular hole, elastic cylindrical pin and the spring of flexible axle pull bar upper end, described action bars and flexible axle pull bar are connected with each other and make flexible axle pull bar to be limited in slot through slot and circular hole to slide up and down by described elastic cylindrical pin, described spring is placed on action bars upper end and one end and contacts connection with upper handle, and the other end is connected with elastic cylinder pin contacts.
The safe control switch used in a kind of tower crane the most according to claim 2, it is characterised in that the two ends of described flexible axle pull bar are provided with the termination of rigidity, are provided with Bowden cable between the described termination at two ends.
The safe control switch used in a kind of tower crane the most according to claim 1, it is characterised in that described contact is normally closed interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132300.1U CN205442420U (en) | 2015-12-30 | 2015-12-30 | Safe master switch who uses on tower machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132300.1U CN205442420U (en) | 2015-12-30 | 2015-12-30 | Safe master switch who uses on tower machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205442420U true CN205442420U (en) | 2016-08-10 |
Family
ID=56600033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521132300.1U Withdrawn - After Issue CN205442420U (en) | 2015-12-30 | 2015-12-30 | Safe master switch who uses on tower machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205442420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480862A (en) * | 2015-12-30 | 2016-04-13 | 浙江箭环电气开关有限公司 | Safety control switch for tower crane |
-
2015
- 2015-12-30 CN CN201521132300.1U patent/CN205442420U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480862A (en) * | 2015-12-30 | 2016-04-13 | 浙江箭环电气开关有限公司 | Safety control switch for tower crane |
| CN105480862B (en) * | 2015-12-30 | 2017-11-03 | 浙江箭环电气开关有限公司 | A kind of safe control switch used in tower crane |
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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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160810 Effective date of abandoning: 20171103 |