CN207551875U - A kind of detection device of high-order selection fork truck chain relaxation - Google Patents
A kind of detection device of high-order selection fork truck chain relaxation Download PDFInfo
- Publication number
- CN207551875U CN207551875U CN201721730980.6U CN201721730980U CN207551875U CN 207551875 U CN207551875 U CN 207551875U CN 201721730980 U CN201721730980 U CN 201721730980U CN 207551875 U CN207551875 U CN 207551875U
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- China
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- chain
- fork truck
- bolt
- anchoring part
- detection device
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Abstract
The utility model is related to a kind of detection devices of high-order selection fork truck chain relaxation, it may include detection switch, switch bracket, chain bolt, first clamp nut, compressed spring, chain anchoring part and stop nut, the chain bolt passes through the chain anchoring part, upper end is fixedly connected with fork truck chain end, the compressed spring is set on the chain bolt between first clamp nut and the chain anchoring part, the upper end abuts the lower surface of the chain anchoring part, lower end abuts the upper surface of first clamp nut, the stop nut is mounted on the chain bolt above the chain anchoring part, so that the chain bolt has a preset movement distance, the detection switch is mounted on the switch bracket, so that the chain bolt triggers the detection switch when moving down the preset movement distance.The utility model is simple in structure, easy for installation, and accuracy in detection is high.
Description
Technical field
The utility model is related to fork truck field, more particularly to a kind of detection device of high-order selection fork truck chain relaxation.
Background technology
High position selection fork truck is as manned promotion working truck, to ensure safety, therefore, to assure that lifting chain is in operation
Process keeps tensioning state.Industry solution is to detect the tension of lifting chain (contact detection) using pressure sensor at present,
Pressure sensor is mounted on lifting part (such as on goods shelf), and the signal that pressure sensor measures is judged by Signal Processing Element
The tension variation state of lift chain if decreaseing beyond certain limit, that is, triggers warning device, operator is reminded to investigate failure, is kept away
Exempt from nature whereabouts and cause forklifts even accident.But the accuracy of this detection mode is not high, is susceptible to erroneous judgement, for example,
Chain shake etc. caused by load fluctuation in fork truck turning and lifting process, and inconvenience is installed.
Invention content
The utility model is intended to provide a kind of detection device of high-order selection fork truck chain relaxation, is filled with solving existing detection
It puts and there are problems that being susceptible to erroneous judgement and inconvenience is installed.For this purpose, the specific technical solution that the utility model uses is as follows：
A kind of detection device of high-order selection fork truck chain relaxation, it may include detection switch, switch bracket, chain bolt,
First clamp nut, compressed spring, chain anchoring part and stop nut, the chain bolt pass through the chain anchoring part, upper end with
Fork truck chain end is fixedly connected, and the compressed spring is set in the institute between first clamp nut and the chain anchoring part
It states on chain bolt, the upper end abuts the lower surface of the chain anchoring part, and lower end abuts the upper surface of first clamp nut,
The stop nut is mounted on the chain bolt above the chain anchoring part, so that the chain bolt has one to make a reservation for
Displacement distance, the detection switch are mounted on the switch bracket so that the chain bolt moves down the predetermined shifting
It is dynamic apart from when trigger the detection switch.
Further, the detection switch is located at the underface of the chain bolt lower end.
Further, the detection device may also include a Tapered Cup, and conehead is downwardly installed in the stop nut
The chain bolt of top, the detection switch is located at the side of the chain bolt, so that the Tapered Cup can be described
Chain bolt downwards the mobile preset distance when trigger the detection switch.
Further, the detection device may also include washer and sleeve, and the sleeve is set in outside the compressed spring
Face, the upper end are abutted with the lower surface of chain anchoring part, the washer be located at the sleeve lower end and first clamp nut it
Between, the compressed spring upper end abuts the lower surface of the chain anchoring part, and lower end abuts the washer.
Further, the detection device may also include the second clamp nut, second clamp nut and described first
Clamp nut is close to each other, to prevent from causing detection device cisco unity malfunction due to the first clamp nut loosens.
Further, the detection switch is microswitch.
The utility model uses above-mentioned technical proposal, has an advantageous effect in that：The utility model is simple in structure, installation side
Just, accuracy in detection is high.
Description of the drawings
Fig. 1 is the solid of the detection device of the high-order selection fork truck chain relaxation of first embodiment according to the present utility model
Schematic diagram, wherein, partial sleeves go divided by show compressed spring；
Fig. 2 is the solid of the detection device of the high-order selection fork truck chain relaxation of second embodiment according to the present utility model
Schematic diagram, wherein, the sleeve on the left side goes divided by shows compressed spring in figure.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings is in the utility model exposure
A part for appearance mainly to illustrate embodiment, and can coordinate the associated description of specification to explain the running of embodiment original
Reason.With reference to these contents, those of ordinary skill in the art will be understood that other possible embodiments and this practicality are new for cooperation
The advantages of type.Component in figure is not necessarily to scale, and similar element numbers are conventionally used to indicate similar component.
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
Fig. 1 shows the detection device 1 of the high-order selection fork truck chain relaxation of first embodiment according to the present utility model.
Detection device 1 may include detection switch 11, switch bracket 12, chain bolt 13, the first clamp nut 14, the second clamp nut
15th, washer 16, sleeve 17, compressed spring 18, chain anchoring part 19 and stop nut 20.Chain bolt 13 passes through chain anchoring part 19,
Upper end is fixedly connected with 2 end of fork truck chain.Compressed spring 18 is set on chain bolt 13, and sleeve 17 is set in compressed spring
18 outsides simultaneously pass through the first clamp nut 14, the second clamp nut 15 and washer 16 and are fixed below chain anchoring part 19, washer
Between 17 and first clamp nut 14 of sleeve so that 18 upper end of compressed spring abuts the lower surface of chain anchoring part 19, lower end
Abut washer 16.17 one side of sleeve plays the role of protecting compressed spring 18, on the other hand plays more attractive.Certainly, at it
In its embodiment, washer 16 and sleeve 17 can also omit.In the shown embodiment, the second clamp nut 14 and the first fastening spiral shell
Mother 15 is close to each other, to prevent from causing 1 cisco unity malfunction of detection device due to the first clamp nut 14 loosens.Certainly, at it
In its embodiment, the second clamp nut 15 can also omit.Stop nut 20 is mounted on the chain bolt of 19 top of chain anchoring part
On 13, so that chain bolt 13 has a preset movement distance d.That is, in the case where fork truck chain 2 is without relaxation, spiral shell is limited
The distance between mother 20 and the upper surface of chain anchoring part 19 are equal to preset movement distance d.In general, d values should be greater than detection switch 11
Triggering stroke, while be less than the maximum allowable stroke of detection switch 11.Detection switch 11 is mounted on switch bracket 12, and
Positioned at the underface appropriate position of 13 lower end of chain bolt.The installation position selection of detection switch 11 is into ensuring chain bolt 13
When moving down distance d, reliably detection trigger it can switch 11 and break detection switch 11.Therefore, when fork truck chain 2
Relaxation, when chain bolt 13 moves down preset movement distance d, detection switch 11 acts, and sends out signal to relative control apparatus,
Driver to be reminded to fix a breakdown in time, avoid causing the accident.Detection switch 11 can approach switch or such as microswitch
Contact-making switch etc..
Fig. 2 shows the detection devices 1 of the high-order selection fork truck chain relaxation of second embodiment according to the present utility model.
It is with the difference in first embodiment：Detection device 1 further includes a Tapered Cup 21, and conehead is downwardly installed in limiting spiral shell
On the chain bolt 13 of 20 top of mother, and detection switch 11 is located at the side of chain bolt 13 so that when 2 pine of fork truck chain
It relaxes, when chain bolt 13 moves down predetermined distance d, 21 detection trigger of Tapered Cup switch 11.The embodiment is mainly used in sky
Between restricted certain occasions, i.e. chain bolt 13 can not be in line the occasion of arrangement (first embodiment) with detection switch 11.
Now briefly explain the operation principle of the utility model.Fork truck chain 2 is tensioned during normal work, and spring is in pressure
Contracting state, the upper surface preset distance displacement distance d of stop nut 20 and chain anchoring part 19；When supporter is arranged at goods shelf bottom,
Or pallet fork does not completely disengage shelf and when door frame is just begun to decline, fork truck chain 2 relaxes, in the elastic force of compressed spring 18
Under effect, chain bolt 13 moves down predetermined distance d, 13 lower end of chain bolt or 21 detection trigger of Tapered Cup switch 11, inspection
Slowdown monitoring switch 11 sends out signal to relative control apparatus, driver to be reminded to fix a breakdown in time, avoids causing the accident.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, in the spirit and scope for not departing from the utility model that the appended claims are limited, in form and details
On the utility model can be made a variety of changes, be the scope of protection of the utility model.
Claims (6)
1. a kind of detection device of high-order selection fork truck chain relaxation, which is characterized in that including detection switch, switch bracket, chain
Bolts, the first clamp nut, compressed spring, chain anchoring part and stop nut, the chain bolt pass through the chain anchoring part,
Upper end is fixedly connected with fork truck chain end, the compressed spring be set in first clamp nut and the chain anchoring part it
Between the chain bolt on, the upper end abuts the lower surface of the chain anchoring part, and lower end abuts first clamp nut
Upper surface, the stop nut is mounted on the chain bolt above the chain anchoring part, so that the chain bolt has
There is a preset movement distance, the detection switch is mounted on the switch bracket so that the chain bolt moves down institute
The detection switch is triggered when stating preset movement distance.
2. the detection device of high-order selection fork truck chain relaxation as described in claim 1, which is characterized in that the detection switch
Positioned at the underface of the chain bolt lower end.
3. the detection device of high-order selection fork truck chain relaxation as described in claim 1, which is characterized in that further include a taper
Part, conehead are downwardly installed in the chain bolt above the stop nut, and the detection switch is located at the chain
The side of bolt, so that the Tapered Cup can trigger the detection in the chain bolt preset movement distance downwards and open
It closes.
4. the detection device of selection fork truck chain relaxation as described in claim 1 high-order, which is characterized in that further include washer and
Sleeve, the sleeve are set in outside the compressed spring, and the upper end is abutted with the lower surface of the chain anchoring part, the washer
Between the sleeve lower end and first clamp nut, the compressed spring upper end abuts the following table of the chain anchoring part
Face, lower end abut the washer.
5. the detection device of high-order selection fork truck chain relaxation as described in claim 1, which is characterized in that it is tight to further include second
Gu nut, second clamp nut is close to each other with first clamp nut.
6. the detection device of high-order selection fork truck chain relaxation as described in claim 1, which is characterized in that the detection switch
For microswitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721730980.6U CN207551875U (en) | 2017-12-13 | 2017-12-13 | A kind of detection device of high-order selection fork truck chain relaxation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721730980.6U CN207551875U (en) | 2017-12-13 | 2017-12-13 | A kind of detection device of high-order selection fork truck chain relaxation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207551875U true CN207551875U (en) | 2018-06-29 |
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ID=62664108
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721730980.6U Active CN207551875U (en) | 2017-12-13 | 2017-12-13 | A kind of detection device of high-order selection fork truck chain relaxation |
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| CN (1) | CN207551875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112174058A (en) * | 2020-11-06 | 2021-01-05 | 浙江鼎力机械股份有限公司 | Lifting structure of electric lifting type aerial work platform truck |
-
2017
- 2017-12-13 CN CN201721730980.6U patent/CN207551875U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112174058A (en) * | 2020-11-06 | 2021-01-05 | 浙江鼎力机械股份有限公司 | Lifting structure of electric lifting type aerial work platform truck |
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