CN203022612U - Mistaken-climbing-prevention ladder - Google Patents
Mistaken-climbing-prevention ladder Download PDFInfo
- Publication number
- CN203022612U CN203022612U CN 201220575925 CN201220575925U CN203022612U CN 203022612 U CN203022612 U CN 203022612U CN 201220575925 CN201220575925 CN 201220575925 CN 201220575925 U CN201220575925 U CN 201220575925U CN 203022612 U CN203022612 U CN 203022612U
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- CN
- China
- Prior art keywords
- lifting gear
- inner lifting
- cat ladder
- outer tube
- described inner
- 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
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Abstract
The utility model discloses a mistaken-climbing-prevention ladder, comprising a plurality of spikes, an outer tube and an inner hoisting device, wherein the inner hoisting device is provided with an inner hoisting device driving mechanism and is arranged in the outer tube; a plurality of tube wall openings are formed in the wall of the outer tube; one ends of the spikes are arranged in the tube wall openings and are connected with the inner hoisting device through pins; the outer tube and the inner hoisting device can move relatively up and down; and the spikes rotate around the pins under gravity action. In the manner, the inclination angles of the spikes can be conveniently changed so as to change the use state of the ladder; and when the spikes incline downwards, the ladder cannot by climbed, and irrelevant persons are prevented from climbing the ladder randomly, so that a security protection measure is provided, and security accidents are reduced. The mistaken-climbing-prevention ladder is simple in structure and convenient to operate.
Description
Technical field
The utility model relates to the anti-error cat ladder that uses in a kind of ascend operation.
Background technology
can use the cat ladder of climbing use in ascend operation, the cat ladder of using under different ascend operation ambient conditionss is also different, such as the power tower cat ladder, the communications tower cat ladder, the kinds such as advertising tower cat ladder, but existing these cat ladders are all fixing open types, it is all fixing a kind of climbing state, cat ladder is in open climbed from state all the time, irrelevant staff also can arbitrarily be climbed, comprise that some are without the children of behavior cognitive ability, the population at risks such as psychiatric patient or mental disease patient can climb, bring hidden danger to equipment safety operation, even provide condition for the suicide personnel, increased the unsafe factor of cat ladder, security incident easily occurs.
The utility model content
The technical problem that the utility model mainly solves is to provide a kind of anti-error cat ladder; this anti-error cat ladder can be climbed when normal operation; on one's own time the pin nail that arranges is transferred to downward-sloping state; cat ladder just is in can not climb state; eliminated the possibility of irrelevant staff's climbing; provide safety precautions, generation that can decrease safent accident.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of anti-error cat ladder is provided, comprise: a plurality of pin nails, outer tube and inner lifting gear, described inner lifting gear is positioned at the inside of described outer tube, described outer tube is provided with a plurality of tube wall openings, one end of described a plurality of pin nail passes respectively described a plurality of tube wall opening and is connected with described inner lifting gear respectively, described inner lifting gear drive a described end motion of described pin nail and change that described pin is followed closely and described cat ladder outer tube between relative angle.
In preferred embodiment of the utility model, described inner lifting gear is screw rod, the not flexible rope of tool or tooth bar.
In preferred embodiment of the utility model, described inner lifting gear is provided with inner lifting gear driving mechanism.
In preferred embodiment of the utility model, described inner lifting gear driving mechanism is helicitic texture or the gear structure that coordinates with tooth bar.
In preferred embodiment of the utility model, described inner lifting gear driving mechanism is motor-driven structure, hydraulic lift or Pneumatic power elevator apparatus.
In preferred embodiment of the utility model, described inner lifting gear driving mechanism is positioned at bottom or the top of described inner lifting gear.
In preferred embodiment of the utility model, described outer tube is fixed, and described inner lifting gear carries out elevating movement in described outer tube.
In preferred embodiment of the utility model, described inner lifting gear is fixed, and described outer tube carries out elevating movement along described inner lifting gear outer wall.
In preferred embodiment of the utility model, described pin is followed closely under the effect of self gravitation around the axis rotation of described pin nail with described inner lifting gear junction.
The anti-error cat ladder of the utility model is by changing the angle of inclination of pin nail; can change easily the use state of cat ladder; make cat ladder be on one's own time the state that can not climb; avoid the random climbing of unrelated person; safety precautions is provided; generation that can decrease safent accident, simple in structure, easy to operate.
Description of drawings
Fig. 1 is that the anti-error cat ladder of the utility model is in the structural representation that can climb state;
Fig. 2 is that anti-error cat ladder shown in Figure 1 is in the structural representation that can not climb state;
In figure, the mark of each parts is as follows: 1, pin nail, 2, the tube wall opening, 3, pin, 4, outer tube, 5, inner lifting gear, 6, inner lifting gear driving mechanism.
The specific embodiment
The utility model is elaborated below in conjunction with accompanying drawing and concrete preferred embodiment, so that advantage of the present utility model and feature can be easier to be understood by those skilled in the art, these embodiment are only illustrative purposes, are not intended to scope of the present utility model is limited.
see also Fig. 1 and Fig. 2, the anti-error cat ladder of the utility model comprises: a plurality of pin nails 1, outer tube 4 and inner lifting gear 5, described inner lifting gear 5 is positioned at the inside of described outer tube 4, described outer tube 4 is provided with a plurality of tube wall openings 2, one end of described a plurality of pin nails 1 passes respectively described a plurality of tube wall opening 2 and is connected with described inner lifting gear 5 respectively, described a plurality of pin nail 1 is generally with pin 3 with being connected of inner lifting gear 5, described inner lifting gear 5 drives a described end motion of described pin nail 1 and changes relative angle between described pin nail 1 and described cat ladder outer tube 4, described pin nail 1 rotates around the axis of described pin nail 1 with described inner lifting gear 5 junctions under the effect of self gravitation.
In addition, described inner lifting gear 5 is screw rod, the not flexible rope of tool or tooth bar.
In addition, described inner lifting gear 5 is provided with inner lifting gear driving mechanism 6, described inner lifting gear driving mechanism 6 is helicitic texture or the gear structure that coordinates with tooth bar, and described inner lifting gear driving mechanism 6 can also be motor-driven structure, hydraulic lift or Pneumatic power elevator apparatus.
In addition, described inner lifting gear driving mechanism 6 is positioned at bottom or the top of inner lifting gear 5, and inner lifting gear driving mechanism 6 can drive inner lifting gear 5 and move up and down in outer tube 4.
In addition, described outer tube 4 has two kinds with the fixed installation mode of described inner lifting gear 5, a kind of is that described outer tube 4 is fixing, described inner lifting gear 5 carries out elevating movement in described outer tube 4, another kind is that described inner lifting gear 5 is fixing, and described outer tube 4 carries out elevating movement along described inner lifting gear 5 outer walls.
Further, fixing when outer tube 4, inner lifting gear 5 moves to that pin nail 1 is following when concordant with tube wall opening 2 below, and cat ladder was in and can climbs state this moment, and the staff may stand on pin nail 1 and upwards climbs.When inner lifting gear 5 continues to move up, pin 3 drives the end of pin nail 1 in tube wall opening 2 upwards, the other end of pin nail 1 outside tube wall opening 2 is downward under the effect of own wt, make the end that pin nail 1 tilts and tube wall opening 2 is outer downward, cat ladder was in and can not climbs state this moment, personnel can't stand in upwards climbing on pin nail 1, realize anti-error function of climbing.When inner lifting gear 5 moved to pin nail 1 top and tube wall opening 2 tops contact, pin was followed closely 1 extreme position that is in inclination, and inner lifting gear 5 moves on can not continuing again.
In like manner, fixing when inner lifting gear 5, when outer tube 4 carried out elevating movement, climbed from the state of cat ladder was fixing with the control principle that can not climb state and above-mentioned outer tube 4, principle that inner lifting gear 5 carries out elevating movement is identical, was not repeated herein.
Be different from prior art, the anti-error cat ladder of the utility model has advantages of simple in structure, easy to operate, can change easily the use state of cat ladder, makes cat ladder be on one's own time the state that can not climb, avoids the random climbing of unrelated person.
The above is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model manual and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (9)
1. anti-error cat ladder, it is characterized in that, comprise: a plurality of pin nails, outer tube and inner lifting gear, described inner lifting gear is positioned at the inside of described outer tube, described outer tube is provided with a plurality of tube wall openings, one end of described a plurality of pin nail passes respectively described a plurality of tube wall opening and is connected with described inner lifting gear respectively, described inner lifting gear drive a described end motion of described pin nail and change that described pin is followed closely and described cat ladder outer tube between relative angle.
2. anti-error cat ladder according to claim 1, is characterized in that, described inner lifting gear is screw rod, the not flexible rope of tool or tooth bar.
3. anti-error cat ladder according to claim 2, is characterized in that, described inner lifting gear is provided with inner lifting gear driving mechanism.
4. anti-error cat ladder according to claim 3, is characterized in that, described inner lifting gear driving mechanism is helicitic texture or the gear structure that coordinates with tooth bar.
5. anti-error cat ladder according to claim 3, is characterized in that, described inner lifting gear driving mechanism is motor-driven structure, hydraulic lift or Pneumatic power elevator apparatus.
6. anti-error cat ladder according to claim 3, is characterized in that, described inner lifting gear driving mechanism is positioned at bottom or the top of described inner lifting gear.
7. anti-error cat ladder according to claim 1, is characterized in that, described outer tube is fixed, and described inner lifting gear carries out elevating movement in described outer tube.
8. anti-error cat ladder according to claim 1, is characterized in that, described inner lifting gear is fixed, and described outer tube carries out elevating movement along described inner lifting gear outer wall.
9. anti-error cat ladder according to claim 1, is characterized in that, described pin is followed closely under the effect of self gravitation around the axis rotation of described pin nail with described inner lifting gear junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575925 CN203022612U (en) | 2012-11-05 | 2012-11-05 | Mistaken-climbing-prevention ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575925 CN203022612U (en) | 2012-11-05 | 2012-11-05 | Mistaken-climbing-prevention ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203022612U true CN203022612U (en) | 2013-06-26 |
Family
ID=48646603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220575925 Expired - Fee Related CN203022612U (en) | 2012-11-05 | 2012-11-05 | Mistaken-climbing-prevention ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203022612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966302A (en) * | 2012-11-05 | 2013-03-13 | 徐国华 | Mistaken-climbing preventing ladder stand |
-
2012
- 2012-11-05 CN CN 201220575925 patent/CN203022612U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966302A (en) * | 2012-11-05 | 2013-03-13 | 徐国华 | Mistaken-climbing preventing ladder stand |
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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: 20130626 Termination date: 20151105 |
|
| EXPY | Termination of patent right or utility model |