CN215369666U - Upper and lower foundation ditch cat ladder of adjustable slope - Google Patents
Upper and lower foundation ditch cat ladder of adjustable slope Download PDFInfo
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- CN215369666U CN215369666U CN202121392350.9U CN202121392350U CN215369666U CN 215369666 U CN215369666 U CN 215369666U CN 202121392350 U CN202121392350 U CN 202121392350U CN 215369666 U CN215369666 U CN 215369666U
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- foundation pit
- ladder stand
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Abstract
The utility model discloses an upper and lower foundation pit ladder with adjustable gradient, which is formed by splicing standard sections, adjacent standard sections are connected by bolts, each section of standard section comprises a step, a handrail and a step fixing frame, the step is arranged in the middle of the step fixing frames at two sides, the handrail is formed by welding rectangular steel pipes and is arranged at the left side and the right side, the bottom of the handrail is fixedly connected to the end surface of the step fixing frame through the handrail fixing bolts, the step is transversely fixed on the step fixing frames at two sides through opposite pull screw rods, the end parts of the opposite pull screw rods are locked and fixed through nuts, the step is longitudinally connected through a circular steel pipe in a transmission manner, each step is welded with a circular steel pipe in a 15-degree manner through a reinforcing steel bar, and the angle of the whole step is adjusted by fixing the first transverse opposite pull screw rod so as to adapt to foundation pits with different gradients. The utility model can adjust the stepping angle according to different slope ratios, so that the channel steps are always parallel to the horizontal plane, and the repeated turnover use of the upper channel and the lower channel is achieved.
Description
Technical Field
The utility model belongs to the technical field of foundation pit construction, and particularly relates to an upper and lower foundation pit ladder with adjustable gradient.
Background
Underground works such as municipal administration piping lane, drainage foundation ditch excavation all around environment and the different influence of soil property, foundation ditch excavation slope ratio design has certain difference in different construction positions, because of linear engineering simultaneously, the cat ladder drops into quantity about the foundation ditch big. The up-down channel of foundation ditch that common steel pipe set up sets up and demolishs the period long, and the upper and lower passageway cat ladder of foundation ditch that originally can have enough to meet the need under the different condition of foundation ditch side slope ratio, if carry out repeated turnover and use, can appear not being on a parallel line with the horizontal plane cat ladder footboard, causes the inconvenience and the certain danger that exists when constructor goes up and down.
Disclosure of Invention
In order to solve the technical problem that the ladder stand for the upper channel and the lower channel of the foundation pit cannot be reused when the slope ratio of the side slope of the foundation pit is different in the prior art, the utility model provides the ladder stand for the upper foundation pit and the lower foundation pit with adjustable slopes, the angles of pedals are adjusted according to different slope ratios, so that the steps of the channels are always parallel to the horizontal plane, the repeated turnover use of the upper channel and the lower channel is achieved, and the technical problem is solved.
The utility model realizes the aim through the following technical scheme, an upper and lower foundation pit ladder with adjustable gradient, the ladder stand is formed by splicing standard sections, each section of standard section is 2m in length, adjacent standard sections are connected through bolts, each section of standard section comprises a step, a handrail and a step fixing frame, the step is arranged in the middle of the step fixing frames on two sides, the handrail is formed by welding rectangular steel pipes and is arranged on the left side and the right side, the bottom of the handrail is fixedly connected onto the end surface of the step fixing frame through the handrail fixing bolts, the step is transversely fixed on the step fixing frames on two sides through counter-pulling screw rods, the end parts of the opposite pulling screw rods are locked and fixed by nuts, the steps are vertically connected by a round steel pipe in a transmission way, each step is welded with the round steel pipe by a reinforcing steel bar at an angle of 15 degrees, the angle of the whole step is adjusted by fixing the first transverse counter-pulling screw rod so as to adapt to foundation pits with different gradients.
According to the upper and lower foundation pit ladder stand with the adjustable gradient, the tread of the step is made of the pattern steel plate with the thickness of 800mm multiplied by 120mm multiplied by 4 mm.
The upper and lower foundation pit ladder stand with the adjustable gradient is characterized in that the handrail is formed by welding 2 long rectangular pipes with the length of 1.2mm and 2 long rectangular pipes with the length of 2m, and the cross section of each rectangular pipe is 48.3mm multiplied by 3 mm.
Foretell upper and lower foundation ditch cat ladder of adjustable slope, the fixed frame of marking time is the channel-section steel structure, and its opening side outwards, has the steel sheet along the welding of length direction's both ends position.
Generally, compared with the prior art, the technical scheme of the utility model can achieve the following beneficial effects: according to the ladder stand for the upper and lower foundation pits with the adjustable gradient, disclosed by the utility model, the step angles are adjusted according to different gradient ratios, so that the channel steps are always kept parallel to a horizontal plane, the repeated turnover use of the upper and lower channels is realized, the up-and-down risks of personnel caused by different gradient ratios of a common standard ladder stand are greatly reduced, the engineering cost is reduced, and the investment of the ladder stand is reduced.
Drawings
The following detailed description of embodiments of the utility model is provided in conjunction with the appended drawings, in which:
FIG. 1 is a top view of an upper and lower foundation pit ladder with adjustable gradient according to the utility model;
FIG. 2 is a side view of an adjustable-gradient ladder for upper and lower foundation pits according to the present invention;
in the figure: 1-step, 2-opposite-pull screw rods, 3-round steel tubes, 4-steel bars, 5-step fixing frames, 6-handrail fixing bolts and 7-handrails.
Detailed Description
As shown in figures 1 and 2, the ladder stand is a top view and a side view of an upper foundation pit and a lower foundation pit with adjustable gradient, the ladder stand is formed by assembling standard sections, the length of each section of standard section is 2m, adjacent standard sections are connected by bolts, each section of standard section comprises a step 1, a handrail 7 and a step fixing frame 5, the step 1 is arranged in the middle position of the step fixing frames 5 on two sides, the handrail 7 is formed by welding rectangular steel pipes, the left side and the right side are arranged, the bottom is fixedly connected on the end surface of the step fixing frame 5 by the handrail fixing bolts 6, the step 1 is transversely fixed on the step fixing frames 5 on two sides by a counter-pull screw rod 2, the end part of the counter-pull screw rod 2 is locked and fixed by nuts, the step 1 is vertically connected by a circular steel pipe 3 in a transmission way, each step 1 is welded by a reinforcing steel bar 4 and the circular steel pipe 3 in a 15-degree way, the angle of the whole step 1 is adjusted by fixing the first transverse counter-pull screw rod 2, so as to adapt to foundation pits with different gradients.
The footboard of marking time 1 adopts 800mm x 120mm x 4 mm's decorative pattern steel sheet preparation, and handrail 7 adopts 2 1.2mm long rectangular pipes and 2m long rectangular pipes welding to form, and the cross sectional dimension of rectangular pipe is 48.3mm x 3mm, and the fixed frame 5 of marking time is the channel-section steel structure, and its opening side outwards, and the welding of both ends position along length direction has the steel sheet.
The utility model can adjust the angle of the step 1 according to different slope ratios, so that the channel steps are always parallel to the horizontal plane, the repeated turnover use of the upper channel and the lower channel is realized, the up-and-down risks of personnel caused by different slope ratios of the common standard crawling ladder are greatly reduced, the engineering cost is reduced, and the investment of the crawling ladder is reduced.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. The ladder stand is characterized in that each section of standard section comprises a step (1), a handrail (7) and a step fixing frame (5), the steps (1) are arranged in the middle of the step fixing frames (5) on two sides, the handrails (7) are welded by rectangular steel pipes and arranged on the left side and the right side, the bottom of each step is fixedly connected to the end face of the step fixing frame (5) through handrail fixing bolts (6), the steps (1) are transversely fixed on the step fixing frames (5) on two sides by split screw rods (2), the end parts of the split screw rods (2) are locked and fixed by nuts, the steps (1) are vertically connected by round steel pipes (3) in a transmission manner, and each step (1) is welded with the round steel pipes (3) by reinforcing steel bars (4) in an angle of 15 degrees, the angle of the whole step (1) is adjusted by fixing the first transverse counter-pulling screw (2) so as to adapt to foundation pits with different gradients.
2. The adjustable-gradient upper and lower foundation pit ladder stand as claimed in claim 1, wherein: the tread of the step (1) is made of a pattern steel plate with the thickness of 800mm multiplied by 120mm multiplied by 4 mm.
3. The adjustable-gradient upper and lower foundation pit ladder stand as claimed in claim 1, wherein: the handrail (7) is formed by welding 2 long rectangular tubes with the length of 1.2mm and 2 long rectangular tubes with the length of 2m, and the cross section of each rectangular tube is 48.3mm multiplied by 3 mm.
4. The adjustable-gradient upper and lower foundation pit ladder stand as claimed in claim 1, wherein: the stepping fixing frame (5) is of a channel steel structure, the opening side of the channel steel structure faces outwards, and steel plates are welded at the positions of two end portions in the length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121392350.9U CN215369666U (en) | 2021-06-23 | 2021-06-23 | Upper and lower foundation ditch cat ladder of adjustable slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121392350.9U CN215369666U (en) | 2021-06-23 | 2021-06-23 | Upper and lower foundation ditch cat ladder of adjustable slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215369666U true CN215369666U (en) | 2021-12-31 |
Family
ID=79605177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121392350.9U Active CN215369666U (en) | 2021-06-23 | 2021-06-23 | Upper and lower foundation ditch cat ladder of adjustable slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215369666U (en) |
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2021
- 2021-06-23 CN CN202121392350.9U patent/CN215369666U/en active Active
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