Ascending/decending safety access apparatus
Technical field
The utility model relates to a kind of safety barrier device, relates in particular to a kind of used ascending/decending safety access apparatus of working hole when being used for sewer and being embedded in the inspection operation of underground cable, communication cable, gas flue etc.
Background technology
Prior art is when the working hole built-in function, the working hole lid that at first will be positioned at the road surface is opened, the staff enters to operate then, at this moment, in operating process, this working hole is to be in open state, even the sign of " asking pedestrian, vehicle to be noted " in the working hole placed around, but, because working hole is in open state, thereby still the accident that pedestrian or thing etc. fall can take place.
For preventing the generation of this type of accident, there is the people once to be provided with the safety barrier device of automatic lifting in working hole inside, as long as above-mentioned safety barrier device is risen, can form safety barrier during operation at peristome.
But there is following problem in actual use in above-mentioned safety barrier device:
1. because the top of the safety barrier device of prior art working hole automatic lifting does not have lid, therefore after working hole is opened, before above-mentioned safety barrier was not also put on, working hole still was in open state, therefore also the accident that operating personnel self fall down from opening part might take place;
2., therefore still exist the danger that the third party can fall even prior art working hole automatic lifting safety barrier device is the state that elevates in addition, but guardrail itself also is opening-like attitude.
Summary of the invention
The purpose of this utility model is to provide a kind of improved ascending/decending safety access apparatus, after it can prevent from lid opened, safety barrier also the fallen accident that does not rise preceding operating personnel or other personnel or thing etc., prevent that simultaneously after guardrail promoted, the accident that the third party falls from the entrance took place.
The purpose of this utility model is achieved in that
A kind of ascending/decending safety access apparatus comprises: be positioned at a ladder in ground handling hole, a safety barrier is set on this ladder, it is characterized in that:
Described safety barrier comprises, but is separately positioned on the movable pillar of the free lifting on the ladder side ladder pillar by two coaster supporting plates; In that being set on the two movable pillars at least, two its two ends are connected to circular-arc horizontal bar bar on the two movable pillars; At circular-arc horizontal bar bar the one vertical railing that is connected on the circular-arc horizontal bar bar is set at least; On two movable pillars and vertical railing upper end, a lid is set; Two wire rope, their end are fixedly connected on respectively on the silk rope connecting portion of two movable pillar bottoms, and the other end is connected with weight.
In above-mentioned ascending/decending safety access apparatus, wherein, described ladder upper end is positioned at enclosing cover below, ground handling hole, and the ladder lower end is positioned at the working hole bottom; In appropriate position, ladder pillar top and the bottom, ladder both sides one connecting rod is set respectively, in the corresponding position up and down of working hole inwall bracket is set respectively, described bracket and ladder connecting rod are fixed together.
In above-mentioned ascending/decending safety access apparatus, wherein, described coaster supporting plate is fixedly installed on the top of ladder both sides ladder pillar, and each is provided with the coaster of being made up of two pulleys on this kickstand plate, and described movable pillar is arranged in two pulleys of made block.
In above-mentioned ascending/decending safety access apparatus, wherein, described coaster is made up of four pulleys that are arranged on the coaster supporting plate, and the both sides of movable pillar 5 are respectively equipped with two pulleys and form multiple row coaster.
In above-mentioned ascending/decending safety access apparatus, wherein, a weight track is set respectively on the connecting rod of described ladder both sides ladder pillar, described weight moves up and down in this weight track; Be respectively equipped with a rollered fulcrum on the ladder pillar of described ladder both sides, described two wire rope, one end is connected with weight, and the other end is fixedlyed connected with the wire rope junction surface of movable pillar bottom after walking around pulley on the fulcrum separately respectively.
In above-mentioned ascending/decending safety access apparatus, wherein, on the ladder pillar of described ladder both sides, fixedly install a nonfloating rail of forming by circular-arc horizontal bar bar and vertical railing, described safety barrier moves up and down in this nonfloating rail inside.
In above-mentioned ascending/decending safety access apparatus, wherein, the circular arc that the circular-arc horizontal bar bar of described nonfloating rail and the circular-arc horizontal bar bar of safety barrier have same curvature.
In above-mentioned ascending/decending safety access apparatus, wherein, described lid be provided with can free folding the hinge hinge, this hinge hinge is arranged on lid and the movable rightabout side of pillar.
In above-mentioned ascending/decending safety access apparatus, wherein, but between described two movable pillar upper ends, be provided with the theft-resistant link chain of a freely openable.
In above-mentioned ascending/decending safety access apparatus, wherein, have pin-and-hole in ladder pillar upper end, described ladder both sides, be provided with dowel hole in appropriate position, described two movable pillar bottoms, and by the pin in pin-and-hole and the dowel hole 10.
The utility model ascending/decending safety access apparatus makes it compared with prior art owing to adopted above-mentioned technical scheme, has following advantage and good effect:
1. the utility model is owing to be provided with lid in the upper end of safety barrier, and therefore, even the working hole external cap is opened, also reason is provided with lid in safety barrier top, can prevent effectively that therefore operating personnel or other personnel or thing fallen accident from taking place;
2. the utility model after therefore even ascending/decending safety access apparatus elevates, also can prevent that the third party in operation from falling in accident generation wherein from the safety barrier opening part owing at above-mentioned safety barrier opening part theft-resistant link chain is housed;
3. the utility model is owing to adopted the weight mode in the safety barrier device, and it not only operates very convenient, and the safety barrier device is risen or lifting down.
Description of drawings
By the description of a following embodiment to the utility model ascending/decending safety access apparatus, can further understand the purpose of this utility model, specific structural features and advantage in conjunction with its accompanying drawing.Wherein, accompanying drawing is:
Fig. 1 is the structural representation according to the ascending/decending safety access apparatus that the utility model proposes;
Fig. 2 is the structural representation that the utility model ascending/decending safety access apparatus is arranged in working hole;
Fig. 3 be among Fig. 2 A-A to the sectional structure schematic diagram;
Fig. 4 is the structural representation that the utility model ascending/decending safety access apparatus promotes state among Fig. 2.
The specific embodiment
See also Fig. 1 to shown in Figure 4, the utility model ascending/decending safety access apparatus, it is the used safe access apparatus of working hole when being used for sewer and being embedded in the inspection operation of underground cable, communication cable, gas flue etc., comprise, working hole 22 inwalls 26 above-below directions are provided with ladder 6 in ground 21, and a safety barrier 1 is set on this ladder 6.This safety barrier 1 comprises, but be arranged on the free lifting on the ladder 6 two movable pillars 5, be connected circular-arc horizontal bar bar 4 on the two movable pillars 5, be arranged on vertical railing 3 on the circular-arc horizontal bar bar 4, be positioned at a lid 2 and two wire rope 15 on two movable pillars 5 and vertical railing 3 upper ends.Wherein:
Described ladder 6 is arranged near the inwall 26 of working hole 22 above-below directions in the ground 21, after being used for working hole 22 enclosing covers 23 are opened, operating personnel can enter by ladder 6 and carry out work in the working hole 22, therefore ladder 6 upper ends are positioned at 21 working holes, 22 enclosing covers, 23 belows, ground, ladder 6 lower ends are positioned at working hole 22 bottoms, in appropriate position, ladder pillar 7 top and the bottom, ladder 6 both sides one connecting rod 24 is set respectively, 24 ', corresponding position up and down at working hole 22 inwalls 26 is provided with bracket 25 respectively, 25 ', bracket 25,25 ' with ladder connecting rod 24,24 ' connects, thus with ladder 6 with upper and lower in ground is fixedly installed on working hole 22.
Described two movable pillars 5 are separately positioned on the ladder 6 both sides ladder pillars 7 by two coaster supporting plates 17, two coaster supporting plates 17 are fixedly installed on the top of ladder 6 both sides ladder pillars 7, on each coaster supporting plate 17, be provided with the coaster of forming by two pulleys 8, movable pillar 5 is arranged on ladder 6 by interting in two pulleys, in the utility model, in order to strengthen the fastness that movable pillar 5 combines with ladder pillar 7 and the flexibility of oscilaltion, the coaster 8 that is positioned on the coaster supporting plate 17 is made up of four pulleys, the both sides that are movable pillar 5 are respectively equipped with two pulleys, thereby form multiple row coaster 8, by movable pillar 5, this movable pillar 5 can be realized moving with respect to the free lifting of two ladder pillars 7 on the ladder 6 by coaster 8 between multiple row coaster 8.
Described circular-arc horizontal bar bar 4 is connected to by its two ends and forms the circular state that is similar on the two movable pillars 5, as for how many 4 on circular-arc horizontal bar bars are set decides as required, and general circular-arc horizontal bar bar 4 will be provided with more than two at least.
Described vertical railing 3 is arranged on the circular-arc horizontal bar bar 4, one vertical railing 3 is set on circular-arc horizontal bar bar 4 at least, in the utility model, from a side of ladder 6 to opposite side, be provided with vertical railing 3 more than two at certain intervals along horizontal bar bar 4, form safety barrier 1 by above-mentioned movable pillar 5, horizontal bar bar 4 and vertical railing 3 like this.
Described lid 2 is arranged on the upper end of two movable pillars 5 and vertical railing 3, on lid 2, also be provided with can free folding hinge hinge 18, this hinge hinge 18 is arranged on lid 2 and movable pillar 5 rightabout sides; But between described two movable pillar 5 upper ends, be provided with the theft-resistant link chain 12 of a freely openable, the handle when this theft-resistant link chain 12 also can doublely be done the lifting safety barrier and the theft-resistant link chain of safety barrier access 20.
Described two wire rope 15, their end is connected with weight 11, and weight 11 is positioned at weight track 16 and moves up and down within it, and this weight track 16 is arranged on the connecting rod 24,24 ' of ladder 6 both sides ladder pillars 7; Be respectively equipped with a rollered fulcrum 14 on ladder 6 both sides ladder pillars 7, the other end of described two wire rope 15 is fixedlyed connected with the wire rope junction surface 19 of movable pillar 5 bottoms after walking around pulley on ladder 6 ladder pillars 7 fulcrums 14 separately respectively; Can see from said structure, weight 11 will make safety barrier 1 lifting thereupon along 16 liftings of weight track, even safety barrier 1 rises to the extreme higher position, wire rope connecting portion 19 can not come off from pulley fulcrum 14 so can guarantee wire rope 15 still in the bottom of fulcrum 14; When safety barrier 1 was raised, above-mentioned weight 11 can descend along weight track 16, and when opposite safety barrier 1 was fallen, above-mentioned weight 11 can rise along weight track 16 again, therefore can make safety barrier rise easily, descend.
On described ladder 6 both sides ladder pillars 7, also fixedly install a nonfloating rail 13 of forming by circular-arc horizontal bar bar and vertical railing, described safety barrier 1 is positioned at nonfloating rail 13 inside and moves up and down within it, therefore as long as nonfloating rail 13 is than safety barrier 1 greatly, in the utility model, nonfloating rail 13 with safety barrier 1 similar shape, promptly, the circular-arc horizontal bar bar of nonfloating rail 13 and the circular-arc horizontal bar bar 4 of safety barrier 1 have the circular arc of same curvature, thereby safety barrier 1 can be moved up and down in nonfloating rail 13 by snugly.
Have pin-and-hole 9 in ladder pillar 7 upper ends, described ladder 6 both sides and have pin 10, and be provided with dowel hole 9 ' in appropriate position, described two movable pillar 5 bottoms, when arriving the extreme higher position on the safety barrier 1, pin-and-hole 9 is in corresponding position with dowel hole 9 ', and pin 10 is passed through pin-and-hole 9 and dowel hole 9 '; Therefore, as long as promote safety barrier 1, weight 11 will be thereupon to stopping on the equilbrium position with it, and add some power up and down for slightly safety barrier 1, safety barrier 1 lifting at an easy rate, and pin 10 can be stabilized in safety barrier 1 on the extreme higher position by pin-and-hole 9 and dowel hole 9 '.
The using method of the utility model ascending/decending safety access apparatus is:
Original state as shown in Figure 2, movable pillar 5 is received in the working hole 22, wire rope connecting portion 19 its below, at this moment weight 11 is in the top;
When the staff need enter working hole 22 and operates, earlier the enclosing cover 23 of working hole 22 is opened, at this moment, even opened working hole 22 enclosing covers 23, also, therefore can prevent effectively that operating personnel from falling in the working hole 22 because of being provided with lid 2 in safety barrier 1 upper end; After opening enclosing cover 23, give safety barrier 1 power that makes progress a little, because the balanced action of weight 11, operating personnel can raise up (see figure 4) with safety barrier 1 very simply;
See also shown in Figure 4ly, promote safety barrier 1, make safety barrier 1 occur on the ground 21, move safety barrier 1 to extreme higher position after, by pin-and-hole 9 and dowel hole 9 ', just safety barrier 1 can be fixed on the extreme higher position with pin 10.
In order to prevent third party's etc. fallen accident,
But between described two movable pillar 5 upper ends, be provided with the theft-resistant link chain 12 of a freely openable, the handle when this theft-resistant link chain 12 also can doublely be done the lifting safety barrier and the theft-resistant link chain of safety barrier access 20.
But the place is provided with the theft-resistant link chain 12 of a freely openable by the access between safety barrier 1 movable pillar 5 upper ends, as long as open theft-resistant link chain 12 and lid 2,20 tops, access have not had restriction, and operating personnel can freely enter in the safety barrier 1 from access 20; After entering working hole, as long as theft-resistant link chain 12 is hung up properly again, lid 2 is built, and can prevent effectively that the third party from falling in the working hole.In sum, the utility model ascending/decending safety access apparatus can prevent effectively that operating personnel or other personnel or thing fallen accident from taking place owing to be provided with lid in the upper end of safety barrier; Simultaneously, owing to theft-resistant link chain is housed, can prevent that the third party in operation from falling in accident generation wherein from the safety barrier opening part at the safety barrier opening part; In addition, owing in the safety barrier device, adopted the weight mode, make the descending operation of safety barrier very convenient and laborsaving.