CN211666615U - Cat ladder for passing up and down in foundation pit - Google Patents
Cat ladder for passing up and down in foundation pit Download PDFInfo
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- CN211666615U CN211666615U CN201921894302.2U CN201921894302U CN211666615U CN 211666615 U CN211666615 U CN 211666615U CN 201921894302 U CN201921894302 U CN 201921894302U CN 211666615 U CN211666615 U CN 211666615U
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- bracing piece
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Abstract
The utility model relates to a current cat ladder of using from top to bottom in foundation ditch, predetermine distance and parallel arrangement's bracing piece including two intervals, the length of bracing piece is adjustable, each the bracing piece includes a plurality of telescopic links that establish, two from inside to outside cover in proper order respectively a plurality of telescopic links on the bracing piece correspond the setting each other, and two telescopic links that correspond the setting each other form a flexible unit, each be equipped with the pedal pole on the flexible unit respectively, the both ends of pedal pole respectively with two the telescopic link is connected. The utility model provides a cat ladder for going up and down in foundation pit, simple structure, convenient installation and dismantlement, the length of cat ladder can carry out adaptability adjustment according to the difference in height of the high-low working face in the foundation pit, the cat ladder can be used repeatedly, can reduce the construction cost, improve the efficiency of construction; in addition, after the ladder is provided with the pedal, the material trolley can be transferred between high-low span working surfaces.
Description
Technical Field
The utility model relates to a construction facility technical field, more specifically relates to a current cat ladder of using from top to bottom in foundation ditch.
Background
In the construction operation process of a building foundation pit, the upper and lower operation surfaces are often required to be transferred for a long time during the high-low span operation in the foundation pit, and the foundation pit ladder is a necessary facility for constructors to get on and off the operation surfaces and get in and out of a foundation pit construction site. The temporary ladder stand is set up to the scaffold steel pipe that often adopts to the high low operation face of striding in the foundation ditch for a long time to shift, or adopts shaped steel at the integral ladder stand of field weld, and the speed of setting up is slow for current above-mentioned foundation ditch ladder stand, and be not convenient for dismantle and turnover utilization, cat ladder length also can not be adjusted, consumes the fund, increases construction cost. In addition, the ladder stand can only realize the transfer of constructors between high-low span operation surfaces in the foundation pit, and if a material trolley needs to be transferred between high-low span operation surfaces, the ladder stand for the foundation pit cannot be realized.
Therefore, the provision of a simple structure, a foundation pit ladder that can be used in a turnover manner is one of the technical problems that should be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a current cat ladder of using about in foundation ditch aims at solving among the prior art foundation ditch cat ladder and sets up the technical problem that speed is slow, inconvenient dismantlement and regulation.
According to the utility model discloses, provide a current cat ladder of using from top to bottom in foundation ditch, predetermine distance and parallel arrangement's bracing piece including two intervals, the length of bracing piece is adjustable, each the bracing piece includes a plurality of telescopic links that establish, two from inside to outside cover in proper order respectively a plurality of telescopic links on the bracing piece correspond the setting each other, and two telescopic links that correspond the setting each other form a flexible unit, each be equipped with the pedal pole on the flexible unit respectively, the both ends of pedal pole respectively with two the telescopic link is connected.
Preferably, each telescopic rod is provided with a plurality of through holes, the through holes are uniformly distributed along the length direction of the telescopic rod, and two adjacent telescopic rods are fixedly connected through long bolts penetrating through a group of through holes.
Preferably, the foot rest lever comprises a connecting rod, two ends of the connecting rod are respectively provided with a sleeve, the sleeves are used for being sleeved on corresponding telescopic rods, each sleeve is respectively provided with a circular through hole, and the circular through holes are matched with the through holes on the telescopic rods for use and are used for fixedly connecting the sleeves with the telescopic rods through the long bolts.
Preferably, the connecting rod is made of angle steel or square steel pipes.
Preferably, the telescopic rod is made of a round steel pipe or a square steel pipe.
Preferably, the pedal device further comprises a plurality of pedals, and each pedal is detachably connected to two adjacent pedal rods.
Preferably, the connecting rod of the pedal rod is provided with two positioning holes, and the pedal is respectively provided with positioning pins matched with the two positioning holes.
Preferably, the pedal is made of a pattern steel plate, and the thickness of the pedal is 3mm-6 mm.
Preferably, the lower end of each support rod is rotatably connected with a support seat, each support seat comprises two vertical plates and a bottom plate, the two vertical plates are arranged at a preset distance, the lower end of each support rod is arranged between the two vertical plates, and the lower end of each support rod is rotatably connected to the support seat through a pin shaft.
Preferably, the bottom of the bottom plate is provided with sawtooth-shaped anti-skid grains.
The utility model provides a cat ladder for going up and down in foundation pit, simple structure, convenient installation and dismantlement, the length of cat ladder can carry out adaptability adjustment according to the difference in height of the high-low working face in the foundation pit, the cat ladder can be used repeatedly, can reduce the construction cost, improve the efficiency of construction; in addition, after the ladder is provided with the pedal, the material trolley can be transferred between high-low span working surfaces.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 shows according to the utility model discloses current cat ladder's spatial structure sketch map about in the foundation ditch.
Fig. 2 shows a front view of the ladder stand for passing up and down in the foundation pit when the pedal is not installed according to the embodiment of the present invention.
Fig. 3 shows according to the utility model discloses current overhead ladder's structural schematic of telescopic link about in the foundation ditch.
Fig. 4 shows a schematic structural view of the foot rest lever of the ladder stand for passing up and down in the foundation pit according to the embodiment of the present invention.
Fig. 5 shows the structural schematic diagram of the supporting seat of the ladder stand for passing up and down in the foundation pit according to the embodiment of the utility model.
Fig. 6 shows a schematic structural diagram of a step plate of the ladder stand for passing up and down in the foundation pit according to the embodiment of the present invention.
Fig. 7 shows a cross-sectional view at a-a in fig. 2.
Fig. 8 shows a usage state diagram of the ladder stand for passing up and down in the foundation pit when the pedal is not installed according to the embodiment of the present invention.
Fig. 9 shows a using state diagram of the ladder stand for up-and-down passing in the foundation pit when the pedal is installed according to the embodiment of the invention.
In the figure: the first telescopic link 11, the second telescopic link 12, the third telescopic link 13, the fourth telescopic link 14, the through hole 101, the pin shaft hole 102, the first pedal lever 21, the second pedal lever 22, the third pedal lever 23, the fourth pedal lever 24, the connecting rod 201, the sleeve 202, the positioning hole 203, the threaded hole 204, the pedal 3, the positioning pin 31, the screw hole 32, the supporting seat 4, the vertical plate 41, the bottom plate 42, the anti-skid pattern 421, the pin shaft 43, the long bolt 5, and the foundation pit 6.
Detailed Description
Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by the same or similar reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.
The utility model provides a current cat ladder of using from top to bottom in foundation ditch, predetermine distance and parallel arrangement's bracing piece including two intervals, the length of bracing piece is adjustable, and each bracing piece includes a plurality of telescopic links that establish from inside to outside cover in proper order respectively, and a plurality of telescopic links on two bracing pieces correspond the setting each other, and two telescopic links that correspond the setting each other form a flexible unit, each be equipped with the pedal pole on the flexible unit respectively, the both ends of pedal pole respectively with two telescopic links of flexible unit are connected.
A plurality of through holes 101 are respectively formed in each telescopic rod, the through holes 101 are uniformly distributed along the length direction of the telescopic rods, and every two adjacent telescopic rods are fixedly connected through long bolts 5 penetrating through a group of through holes 101.
The pedal rod comprises a connecting rod 201, two ends of the connecting rod 201 are respectively provided with a sleeve 202, the sleeve 202 is sleeved on the corresponding telescopic rod, each sleeve 202 is respectively provided with a circular through hole, and the circular through holes are matched with the through holes 101 on the telescopic rod for fixedly connecting the sleeve 202 with the telescopic rod through long bolts 5.
As shown in fig. 1 to 3, in this embodiment, the bracing piece comprises the telescopic link that four lengths equal, four telescopic links are established from inside to outside in proper order and are in the same place, be first telescopic link 11 from inside to outside in proper order, second telescopic link 12, third telescopic link 13 and fourth telescopic link 14, four telescopic links are made by circular steel pipe, in per two adjacent telescopic links, the external diameter of the telescopic link in inside and the internal diameter phase-match of the adjacent telescopic link in outside, namely, the external diameter of first telescopic link 11 and the internal diameter phase-match of second telescopic link 12, the external diameter of second telescopic link 12 and the internal diameter phase-match of third telescopic link 13, the external diameter of third telescopic link 13 and the internal diameter phase-match of fourth telescopic link 14. The number of the through holes 101 on each telescopic rod is equal, and the intervals between the through holes 101 are equal. As shown in fig. 4, in this embodiment, the connecting rod 201 of the foot bar is made of a square steel tube, the telescopic rod is made of a round steel tube, and the corresponding sleeve 202 of the foot bar is also made of a round steel tube. The inner diameters of the two sleeves 202 on the foot bar are matched with the outer diameters of the corresponding telescopic bars. The ladder stand for up-down traffic in the foundation pit in the embodiment comprises four foot rest levers, namely a first foot rest lever 21, a second foot rest lever 22, a third foot rest lever 23 and a fourth foot rest lever 24 which are sequentially arranged from top to bottom and are respectively matched with the first telescopic rod 11, the second telescopic rod 12, the third telescopic rod 13 and the fourth telescopic rod 14 for use. When in use, one through hole 101 of the inner telescopic rod is aligned with the uppermost through hole 101 of the adjacent outer telescopic rod, and the two telescopic rods are fixedly connected by penetrating the long bolt 5 through the two corresponding through holes 101; meanwhile, each foot bar is coupled to the corresponding telescopic bar, specifically, a circular through hole of the bushing 202 of the foot bar is aligned with the through hole 101 of the uppermost portion of the corresponding telescopic bar, and then the bushing 202 is fixedly coupled to the telescopic bar using the long bolt 5. By aligning the different through holes 101 of the inner extendable rod with the uppermost through hole 101 of the outer extendable rod and connecting them by the long bolt 5, the overall length of the ladder and the distance between the foot bars can be adjusted. As shown in fig. 7, a schematic view of the first telescopic link 11, the second telescopic link 12 and the second foot rest 22 when they are assembled together, the circular through hole of the casing 202 of the second foot rest 22, the uppermost through hole 101 of the second telescopic link 12 and the lowermost through hole 101 of the first telescopic link 11 are aligned at the same time, and then they are fixed together by the long bolt 5. In other alternative embodiments, the connecting rod 201 of the foot bar can be made of angle steel or rectangular tube, the telescopic rod can be made of square steel tube, and the corresponding sleeve 202 of the foot bar can also be made of square steel tube. As shown in fig. 8, the ladder stand is provided between the high-low-span working surfaces in the foundation pit 6, so that the constructors can conveniently go up and down between the high-low-span working surfaces.
Further, the ladder stand for passing up and down in the foundation pit further comprises a plurality of pedals 3, and each pedal 3 is detachably connected to two adjacent telescopic rods. In order to mount the upper step 3 on the lowermost portion of the ladder, one foot bar is connected to each of the upper and lower portions of the lowermost extendable rod, and in the present embodiment, one fourth foot bar 24 is connected to each of the upper and lower portions of the fourth extendable rod 14, as shown in fig. 1 and 2. After the upper pedal 3 is connected on the telescopic link of cat ladder, can realize that the height strides the upper and lower transfer of the handcart that is used for transporting the material between the working face in the foundation ditch, satisfied the material and shifted the demand, enlarged the range of application of cat ladder. In order to realize that the pedal 3 can be rapidly installed and detached with the pedal rod, two positioning holes 203 are formed in the connecting rod 201 of the pedal rod, positioning pins 31 matched with the two positioning holes 203 are respectively arranged on one surface of the pedal 3, and when the pedal 3 is installed, the two positioning pins 31 on the pedal 3 are directly matched and connected with the two positioning holes 203 on the pedal rod. In order to enable the pedal 3 to be firmly connected on the pedal rod, two screw holes 32 are respectively formed in the upper portion and the lower portion of the pedal 3, threaded holes 204 corresponding to the screw holes 32 are respectively formed in the connecting rod 201 of the pedal rod, the pedal 3 is connected to the pedal rod through the positioning pins 31, and then the practical screws penetrate through the screw holes 32 in the pedal 3 to be in threaded connection with the threaded holes 204 in the connecting rod 201, so that the pedal 3 is fixedly connected to the connecting rod 201. The thickness of the pedal 3 is 3mm-6mm, as shown in fig. 6, in this embodiment, the pedal 3 is made of a rectangular patterned steel plate with a thickness of 4mm, the positioning pin 31 is welded and fixed on the non-patterned side of the patterned steel plate, the screw holes 32 are opened at four corners of the rectangular patterned steel plate, the width of the patterned steel plate is smaller than the distance between the two support rods, and the length of the patterned steel plate is equal to the distance between the two pedal rods. In the present embodiment, the lowermost through-hole 101 of the inner extendable rod is aligned with the uppermost through-hole 101 of the adjacent outer extendable rod, and then fixed and connected by the long bolt 5, and the dimension of the pattern steel plate is made according to the pitch between the foot bars determined by the support bars formed by the above assembly. As shown in fig. 9, when the step 3 is mounted on the ladder, the cart for transferring the material between the working surfaces of the high and low strides in the foundation pit 6 can be moved up and down.
Further, the lower end of each support rod is rotatably connected with a support seat 4, the support seat 4 includes two vertical plates 41 and a bottom plate 42, the two vertical plates 41 are spaced by a preset distance, the lower end of the support rod is disposed between the two vertical plates 41, the lower end of the support rod is rotatably connected to the support seat 4 through a pin 43, and the support rod structure is as shown in fig. 5. In this embodiment, a pin shaft hole 102 is formed in the lower portion of the telescopic rod of the support rod, a pin shaft 43 is detachably connected to the two vertical plates 41 of the support seat 4, and the pin shaft 43 is connected with the pin shaft hole 102 in a matching manner, so that the support rod is rotatably connected to the support seat 4. Because soil texture is soft in the foundation ditch, when the cat ladder was used, the area of contact of the bottom of bracing piece and foundation ditch ground is less, and easy atress sinks, influences the security when using, through set up supporting seat 4 on the bracing piece, can increase the support atress area of the bracing piece of cat ladder when the foundation ditch supports, has prevented that the atress from sinking, has increased the security when cat ladder uses. The bottom of the bottom plate 42 of the supporting seat 4 is provided with the sawtooth-shaped anti-slip lines 421, so that the friction force between the supporting seat 4 and the ground of the foundation pit can be increased, and the supporting seat 4 is prevented from forced sliding.
The utility model provides a cat ladder for going up and down in foundation pit, simple structure, convenient installation and dismantlement, the length of cat ladder can carry out adaptability adjustment according to the difference in height of the high-low working face in the foundation pit, the cat ladder can be used repeatedly, can reduce the construction cost, improve the efficiency of construction; in addition, after the ladder is provided with the pedal, the material trolley can be transferred between high-low span working surfaces.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.
Claims (10)
1. The utility model provides an upper and lower current cat ladder of using in foundation ditch, its characterized in that, includes that two intervals predetermine distance and parallel arrangement's bracing piece, the length of bracing piece is adjustable, each the bracing piece includes a plurality of telescopic links that establish, two of overlapping in proper order from inside to outside respectively a plurality of telescopic links on the bracing piece correspond the setting each other, and two telescopic links that correspond the setting each other form a flexible unit, each be equipped with the pedal pole on the flexible unit respectively, the both ends of pedal pole respectively with two the telescopic link is connected.
2. The ladder stand for up-down traffic in a foundation pit according to claim 1, wherein a plurality of through holes are formed in each of the extendable rods, the plurality of through holes are uniformly distributed along a length direction of the extendable rod, and adjacent two of the extendable rods are fixedly connected to each other by a long bolt inserted through a set of the through holes.
3. The ladder stand for up-down traffic in foundation pit according to claim 2, wherein the foot rest comprises a connecting rod, two ends of the connecting rod are respectively provided with a sleeve, the sleeves are used for being sleeved on the corresponding telescopic rods, each sleeve is respectively provided with a circular through hole, and the circular through holes are matched with the through holes on the telescopic rods for fixedly connecting the sleeves with the telescopic rods through the long bolts.
4. The ladder stand for up-down traffic in a foundation pit according to claim 3, wherein the connecting rod is made of angle steel or square steel pipe.
5. The ladder stand for up-down traffic in a foundation pit according to claim 3, wherein the telescopic rod is made of a round steel pipe or a square steel pipe.
6. The ladder stand for ascending and descending in a foundation pit according to claim 1, further comprising a plurality of steps, each of the steps being detachably connected to two adjacent ones of the foot bars.
7. The ladder stand for up-down traffic in a foundation pit as claimed in claim 6, wherein the connecting rod of the foot rest lever is provided with two positioning holes, and the foot rest is provided with positioning pins respectively matched with the two positioning holes.
8. The ladder stand for up-down traffic in foundation pit according to claim 7, wherein the tread is made of a pattern steel plate, and the thickness of the tread is 3mm to 6 mm.
9. The ladder stand for the upper and lower passing in the foundation pit as claimed in any one of claims 1 to 8, wherein the lower end of each of the support rods is rotatably connected with a support base, the support base comprises two vertical plates and a bottom plate, the two vertical plates are spaced apart from each other by a predetermined distance, the lower end of the support rod is arranged between the two vertical plates, and the lower end of the support rod is rotatably connected with the support base through a pin shaft.
10. The ladder stand for up-down traffic in a foundation pit according to claim 9, wherein the bottom of the bottom plate is provided with saw-toothed anti-slip lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921894302.2U CN211666615U (en) | 2019-11-05 | 2019-11-05 | Cat ladder for passing up and down in foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921894302.2U CN211666615U (en) | 2019-11-05 | 2019-11-05 | Cat ladder for passing up and down in foundation pit |
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| Publication Number | Publication Date |
|---|---|
| CN211666615U true CN211666615U (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921894302.2U Active CN211666615U (en) | 2019-11-05 | 2019-11-05 | Cat ladder for passing up and down in foundation pit |
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| CN (1) | CN211666615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531284A (en) * | 2021-07-12 | 2021-10-22 | 中国一冶集团有限公司 | Underground drainage pipeline repairing method and special climbing frame thereof |
-
2019
- 2019-11-05 CN CN201921894302.2U patent/CN211666615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531284A (en) * | 2021-07-12 | 2021-10-22 | 中国一冶集团有限公司 | Underground drainage pipeline repairing method and special climbing frame thereof |
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