CN210217598U - A collapsible cat ladder for manual hole digging pile - Google Patents
A collapsible cat ladder for manual hole digging pile Download PDFInfo
- Publication number
- CN210217598U CN210217598U CN201822133975.8U CN201822133975U CN210217598U CN 210217598 U CN210217598 U CN 210217598U CN 201822133975 U CN201822133975 U CN 201822133975U CN 210217598 U CN210217598 U CN 210217598U
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- Prior art keywords
- ladder
- collapsible
- connecting rod
- stopper
- fan
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Abstract
The utility model provides a collapsible cat ladder for artifical bored pile, the cat ladder includes ladder and a plurality of guard circle, and the both ends of guard circle are fixed on the both sides montant of ladder through the connecting rod respectively, and the one end of connecting rod is fixed on the both sides montant of ladder, and other end tip is equipped with the stopper, and the cover has the sleeve pipe on the inboard connecting rod of stopper, and the sleeve pipe can rotate on the connecting rod, and sleeve pipe outside end symmetry sets up two fan ring shape dogs, radially forms two fan ring shape recesses that run through and symmetry at sleeve pipe outside end along the sleeve pipe, the stopper can imbed in the fan ring shape recess. The utility model discloses a collapsible cat ladder protectiveness for artifical bored pile is good, and is safe practical, can fold in a flexible way, and the transport is light, and occupation space is little in the work progress, makes things convenient for personnel's construction to save parking space.
Description
Technical Field
The utility model relates to an auxiliary equipment technical field that ascends a height among the building construction process, concretely relates to collapsible cat ladder for artifical bored pile.
Background
According to the requirement of safety operation regulations of manual hole digging piles, in the process of hole forming and excavating, hole-forming operators can only access to the ground through the crawling ladder hung on the hole wall, the crawling ladder is the only channel for providing the upper operation surface and the lower operation surface of the operators, the safety of the crawling ladder is particularly important, and for convenient construction, the soft ladder without a guardrail is frequently used in actual construction of the hole digging piles, workers can fall, and potential safety hazards exist. Therefore, the ladder stand of the digging pile is provided with the guardrail, the guardrail of the common ladder stand with the guardrail can not be folded, the manual pile is placed in the hole, the occupied space is large, the normal construction is influenced, and the transportation and the storage need larger space.
SUMMERY OF THE UTILITY MODEL
In order to overcome the prior art not enough, the utility model provides a collapsible cat ladder for artifical bored pile, this collapsible cat ladder protectiveness is good, safe practical, can fold in a flexible way, and the transport is light, and occupation space is little in the work progress, makes things convenient for personnel's construction to save transportation and parking space.
The utility model discloses realize the technical scheme of above-mentioned purpose as follows:
the utility model provides a collapsible cat ladder for artifical bored pile, includes ladder and a plurality of guard ring, the both ends of guard ring are fixed on the both sides montant of ladder through the connecting rod respectively, the one end of connecting rod is fixed on the both sides montant of ladder, and other end tip is equipped with the stopper, and the cover has the sleeve pipe on the inboard connecting rod of stopper, and sleeve pipe outside end symmetry sets up two annular dogs.
Further, the sleeve can rotate on the connecting rod.
Furthermore, two symmetrical sector annular grooves which penetrate through the outer side end of the sleeve are formed along the radial direction of the sleeve, and the limiting block can be embedded into the sector annular grooves.
Furthermore, the width of the limiting block is smaller than the minimum width of the fan-shaped annular groove, namely the width of the limiting block is smaller than the minimum tangential distance between the two fan-shaped annular stop blocks, so that the limiting block can be embedded into the fan-shaped annular groove, the sleeve can rotate around the connecting rod, and after the sleeve rotates to a certain angle, the fan-shaped annular stop blocks meet the limiting block and are blocked, and the rotation angle of the sleeve is limited.
The width of stopper is less than the minimum width of fan annular recess, the length of stopper is greater than sheathed tube internal diameter for the stopper can imbed in the fan annular recess to be blocked by the upper and lower edge of fan annular recess, block that the sleeve pipe is deviate from the connecting rod tip.
Preferably, the connecting rod is L-shaped, one end of the connecting rod is fixed on the ladder vertical rod, the other end of the connecting rod is a free end, the free end is preferably towards the outer side or the inner side of the ladder vertical rod, and in order to ensure that a person has enough space from top to bottom, the free end of the connecting rod is preferably towards the outer side of the ladder vertical rod.
The two ends of the protective ring are provided with clamping holes, and the protective ring is clamped on the sleeve through the clamping holes, so that the protective ring cannot rotate on the sleeve.
Preferably, the limiting block is a cuboid.
The utility model discloses do not specially limit to the thickness of stopper, its thickness be enough play block the sleeve pipe deviate from the connecting rod tip and to the sleeve pipe rotate play limiting displacement can, preferably, the thickness of stopper is the same with fan annular groove depth.
More preferably, the connecting rods are symmetrically and evenly distributed on the vertical rods on both sides of the ladder.
The ladder include two montants and connect a plurality of crosspieces between two montants.
Planes formed by the guard rings are parallel to each other and are spaced at equal intervals. The number of the protective rings is set according to the safety protection requirement of the constructors for climbing up and down the ladder, and the number is not particularly limited.
Specifically, the guard ring comprises the straight section at both ends and the middle segmental arc, the guard ring is connected with the traction rod through the straight section of one end. And under the unfolded state of the protective ring, the straight section is vertical to the vertical rod and the crosspiece of the ladder.
Preferably, the top end of the ladder is provided with a suspension member. Particularly, two hooks are arranged at the tops of two vertical rods of the ladder and used for hanging the ladder on the orifice upper edge.
As the utility model discloses a preferred technical scheme, collapsible cat ladder still include the traction lever, the traction lever in proper order with a plurality of guard rings swing joint.
Preferably, the draw bar is parallel to a vertical rod of the ladder, and the draw bar is connected to the protective ring through a bolt and a nut. Specifically, the straight section of the guard ring is provided with bolt holes, the draw bar is also provided with corresponding bolt holes, and the draw bar is connected to the straight section of the guard ring through bolts.
More preferably, the tow bar is of the same length as the vertical bar of the ladder.
The number of the draw bars is 1-3, the draw bars are connected to the guard ring at equal intervals, and the draw bars are parallel to each other. Each traction rod is connected with a plurality of protection rings from bottom to top in sequence.
The utility model discloses a traction lever's effect lies in through the pulling traction lever, drives guard ring and the rotatory upwards or downwards of sleeve pipe to folding or expansion with the guard ring, consequently, as long as can play the traction effect, for save material, alleviate cat ladder weight, the preferred 1-2 of quantity of traction lever.
As a further preferred technical scheme of the utility model, each connecting rod is fixed in respectively between the adjacent crosspiece on the montant, and the connecting rod symmetry sets up and evenly distributed on the montant of ladder both sides.
The utility model discloses in, the sheathed tube rotation angle has been decided to the minimum width of fan annular recess, the utility model discloses when the guard ring of cat ladder is in the complete expansion state, the plane at guard ring place is the horizontality, this moment stopper and fan annular dog push up tightly each other. When the protective ring is in a completely folded state, the angle formed by the plane where the protective ring is located and the vertical rod of the ladder is 5-30 degrees, and at the moment, the limiting block and the fan annular stop block are mutually tightly propped.
The utility model discloses a collapsible cat ladder can be used to the work progress in artifical hole digging pile stake hole, also can be used to the personnel protection in other needs place of ascending a height.
The utility model discloses a theory of operation that is used for collapsible cat ladder of manual hole digging pile is:
the ladder stand in a folded state is hung on the upper edge of an orifice or a platform through a hanging part, a nut on a bolt on a draw bar is unscrewed, the draw bar is pulled downwards, a protective ring is driven to rotate downwards, and a sleeve is driven to rotate downwards around a connecting rod, namely, the fan-shaped groove rotates downwards relative to the limit block, when the fan-shaped annular stop block is rotated to be contacted with the limit block, stopping rotating, screwing the bolt on the traction rod when the protective ring is just rotated to the horizontal state, thereby fixing all the protective rings on the traction rod, the ladder stand can be normally used, when the ladder stand is used, the nut on the bolt on the traction rod is unscrewed, the traction rod is pushed upwards, the protective rings are driven to rotate upwards, and simultaneously drives the sleeve to rotate upwards around the connecting rod until the fan-shaped stop block is blocked by the limiting block, and the nut on the bolt on the draw bar is screwed down, so that the protective ring is folded.
The utility model discloses a collapsible cat ladder structural design is reasonable, uses through the cooperation of sleeve pipe and stopper, can make cat ladder guard ring nimble folding and expand, and is easy and simple to handle, when the cat ladder about personnel need, expandes the guard ring, plays the guard action, and after finishing using, can conveniently fold the guard ring, makes its occupation space little in the work progress, makes things convenient for personnel's construction. The utility model discloses a cat ladder protectiveness is good, and safe practical can fold in a flexible way, and the transport is light to save parking space.
Drawings
Fig. 1 is the structural schematic diagram of the cat ladder in the unfolding state.
Fig. 2 is one of the connection schematic diagrams of the ladder stand components of the present invention.
Fig. 3 is a second schematic view of the connection of the ladder stand components of the present invention.
Fig. 4 is a third schematic view of the connection of the ladder stand components of the present invention.
Fig. 5 is a fourth schematic view of the connection of the ladder stand components of the present invention.
Fig. 6 is a fifth schematic view of the connection of the ladder stand components of the present invention.
Fig. 7 is a sixth schematic view of the connection of the ladder stand components of the present invention.
Fig. 8 is a schematic view of the folded ladder stand structure of the present invention.
Fig. 9 is a partial enlarged view of the folded structure of the ladder stand of the present invention.
Fig. 10 is a using state diagram of the ladder stand of the present invention.
In the figure, the position of the upper end of the main shaft,
1-ladder, 101-vertical rod, 102-rung;
2-protective ring, 201-straight section, 202-arc section;
3-connecting rod, 4-limiting block, 5-sleeve, 6-sector annular stop block, 7-sector annular groove, 8-suspension part, 9-traction rod, 10-bolt hole, 11-bolt, 12-nut and 14-manual hole digging pile hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and the accompanying drawings and the described embodiments are only some preferred embodiments of the present invention, but not all embodiments, and should not be construed as limiting the present invention.
As shown in fig. 1, the foldable ladder stand for the manual hole digging pile comprises a ladder 1 and a plurality of protective rings 2, wherein the ladder 1 is composed of two vertical rods 101 and a plurality of rungs 102 connected between the two vertical rods, two ends of each protective ring 2 are respectively connected to the vertical rods 101 on two sides of the ladder through connecting rods 3, and each connecting rod 3 is respectively fixed between adjacent rungs on the vertical rods. The connecting rods 3 are symmetrically arranged and uniformly distributed on the vertical rods 101 on the two sides of the ladder 1, and planes formed by the protective rings 2 are parallel to each other and have equal intervals.
The top end of the vertical rod 101 is provided with a hanging part 8, and specifically, the top ends of the two vertical rods are respectively welded with a hook.
As shown in fig. 2-7, the protection ring 2 is composed of a straight section 201 at two ends and an arc section 202 in the middle, the straight section and the arc section can be integrally formed or welded at a later stage, in this embodiment, the protection ring 2 is made of flat iron, the end parts of the straight sections 201 at two ends of the protection ring are provided with clamping holes, and the clamping holes are clamped on the outer surface of the sleeve 5.
Specifically, connecting rod 3 is L shape, its one end welding is on montant 101, the other end is the free end, the free end is towards the outside of ladder montant 101, the tip of free end is equipped with stopper 4, stopper 4 is the cuboid, the cover has sleeve pipe 5 on the inboard connecting rod 3 of stopper, sleeve pipe outside end symmetry sets up two fan ring dogs 6, radially form two fan ring grooves 7 that run through each other and symmetry at sleeve pipe 5 outside end along the sleeve pipe, stopper 4's width is less than the minimum width of fan ring groove 7, stopper 4's width is less than the minimum tangential distance between two fan ring dogs 6 promptly, make stopper 4 can imbed in the fan ring groove 7, and make sleeve pipe 5 can wind connecting rod 3 rotatory.
The width of the limiting block 4 is smaller than the minimum width of the fan-shaped annular groove 7, and the length of the limiting block is larger than the inner diameter of the sleeve 5, so that the limiting block 4 can be embedded into the fan-shaped annular groove 7 and clamped by the upper edge and the lower edge of the fan-shaped annular groove 7, and the sleeve 5 is prevented from being separated from the free end of the connecting rod 3.
Specifically, the thickness of the limiting block 4 is the same as the depth of the fan-shaped annular groove 7.
The ladder stand further comprises a traction rod 9, the length of the traction rod 9 is equal to that of a vertical rod 101 of the ladder 1 and is parallel to the vertical rod, a bolt hole 10 is formed in the straight section of the protective ring, the corresponding bolt hole 10 is also formed in the traction rod 9, and the traction rod is connected to the straight section 201 of the protective ring 2 through a bolt 11 and a nut 12.
The use method of the foldable ladder stand of the utility model is described below with the accompanying drawings: as shown in fig. 10, the crawling ladder in a folded state is hung on the hole opening or the upper edge of a platform of a pile hole 14 of a manual hole digging pile through a hanging part 8, a bolt 11 on a draw bar 9 is unscrewed, the draw bar 9 is pulled downwards to drive a guard ring 2 to rotate downwards, meanwhile, a sleeve 5 is driven to rotate downwards around a connecting rod 3, namely, a fan-shaped annular groove 7 rotates downwards relative to a limiting block 4, when the fan-shaped annular stop block 6 is rotated to be in contact with the limiting block 4, the rotation is stopped, at the moment, the guard ring 2 just rotates to a horizontal state (as shown in fig. 1 and 6), a nut 12 on the bolt 11 on the draw bar 9 is screwed, so that all the guard rings 2 are fixed on the draw bar 9, the crawling ladder can be normally used, when the nut 12 on the bolt 11 on the draw bar 9 is unscrewed to push the draw bar 9 upwards to drive the guard ring 2 to rotate upwards, and simultaneously drive, until the fan-shaped ring-shaped stop 6 is stopped by the stop 4, and then the nut 12 on the bolt 11 on the drawbar 9 is tightened, thereby folding the guard ring 2 (as shown in fig. 8 and 9).
The present invention is capable of other embodiments, and various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (9)
1. A collapsible cat ladder for manual bored pile, includes ladder (1) and a plurality of guard rings (2), characterized by: the two ends of the protective ring (2) are respectively fixed on two side vertical rods (101) of the ladder (1) through connecting rods (3), one ends of the connecting rods (3) are fixed on the two side vertical rods (101) of the ladder (1), the end parts of the other ends of the connecting rods are provided with limit blocks (4), sleeve pipes (5) are sleeved on the connecting rods (3) at the inner sides of the limit blocks (4), two fan-shaped stop blocks (6) are symmetrically arranged at the outer side end parts of the sleeve pipes (5), and two fan-shaped grooves (7) which penetrate through and are symmetrical are formed at the outer side end parts of the sleeve pipes (5) along the radial; the foldable crawling ladder further comprises a traction rod (9), and the traction rod (9) is movably connected with the plurality of protective rings (2) in sequence.
2. The collapsible ladder for manual pile driving according to claim 1, wherein the width of the stopper (4) is smaller than the minimum width of the fan-shaped groove (7), i.e. the width of the stopper (4) is smaller than the minimum tangential distance between two fan-shaped stops (6).
3. A collapsible ladder stand for a manual pile according to claim 1 or 2, characterised in that the stopper (4) can be inserted into the scalloped groove (7) and the sleeve (5) can be rotated about the connecting rod (3).
4. A collapsible ladder stand for a manual pile driver according to claim 1, characterised in that the length of the stopper (4) is greater than the inner diameter of the casing (5).
5. A collapsible ladder stand for a manual pile digging according to claim 1, characterised in that the connecting rod (3) is L-shaped, the free end of the connecting rod (3) facing the outside of the vertical bar (101) of the ladder.
6. A collapsible ladder stand for a manual pile digging according to claim 1, characterized in that the tow bar (9) is parallel to the vertical bar (101) of the ladder.
7. Collapsible ladder stand for artificial bored piles according to claim 1, characterized in that the connecting rods (3) are symmetrically arranged and evenly distributed on the side uprights (101) of the ladder.
8. The collapsible ladder for manual bored piles according to claim 1 wherein the guard ring (2) is provided with snap holes at both ends through which the guard ring is snapped onto the casing (5), the planes formed by the guard ring (2) being parallel to each other and at equal intervals.
9. A collapsible ladder stand for a manual pile digging according to claim 1, characterised in that the top end of the ladder (1) is provided with a suspension element (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822133975.8U CN210217598U (en) | 2018-12-19 | 2018-12-19 | A collapsible cat ladder for manual hole digging pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822133975.8U CN210217598U (en) | 2018-12-19 | 2018-12-19 | A collapsible cat ladder for manual hole digging pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210217598U true CN210217598U (en) | 2020-03-31 |
Family
ID=69915097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822133975.8U Expired - Fee Related CN210217598U (en) | 2018-12-19 | 2018-12-19 | A collapsible cat ladder for manual hole digging pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210217598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427341A (en) * | 2021-12-24 | 2022-05-03 | 呼和浩特科林热电有限责任公司 | Insulating ladder for thermal power plant |
-
2018
- 2018-12-19 CN CN201822133975.8U patent/CN210217598U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427341A (en) * | 2021-12-24 | 2022-05-03 | 呼和浩特科林热电有限责任公司 | Insulating ladder for thermal power plant |
| CN114427341B (en) * | 2021-12-24 | 2023-08-22 | 呼和浩特科林热电有限责任公司 | Insulating ladder for thermal power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 Termination date: 20201219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |