CN215859948U - Collapsible formula cat ladder structure of accomodating - Google Patents
Collapsible formula cat ladder structure of accomodating Download PDFInfo
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- CN215859948U CN215859948U CN202120306246.7U CN202120306246U CN215859948U CN 215859948 U CN215859948 U CN 215859948U CN 202120306246 U CN202120306246 U CN 202120306246U CN 215859948 U CN215859948 U CN 215859948U
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- ladder
- support frame
- handrail
- sliding
- seat
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Abstract
The utility model provides a foldable storage type ladder stand structure which comprises ladder beam frameworks, wherein the ladder beam frameworks are fixedly connected through an anti-skidding step assembly, the side wall of the lower part of the ladder beam framework is connected with a hinge seat through a first pin shaft, the hinge seat is fixedly arranged at the tail part of a support frame, and the support frame and a slide rail form telescopic sliding fit through a sliding guide structure. This cat ladder structure links to each other with base frame is articulated, and the cat ladder guardrail is collapsible, chooses for use the high strength aluminum alloy as main material, parks and can wholly fold under the transport condition, along the slide rail withdrawal and accomodate in the base frame of companion ladder, fully realizes the miniaturization and the lightweight design of product, easy operation, convenient to use.
Description
Technical Field
The utility model relates to the field of aviation maintenance and guarantee equipment, in particular to a foldable and retractable ladder stand structure.
Background
The existing hydraulic lifting working ladder for aircraft maintenance is mostly provided with a ladder structure at the front end of a bottom support frame, so that a passage is provided for workers to go up and down a working table. However, the ladder stand is mostly of a fixed assembly welding type structure and is connected with the frame of the bottom support into a whole, so that the ladder stand cannot be detached or folded quickly, is large in occupied space, is inconvenient to store and transport, and can occupy a large installation space in the length direction when being carried out along with the airplane installation, reduce the space utilization rate of an airplane cargo hold and reduce the aviation transportation and guarantee efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a foldable and storable ladder stand structure, which is hinged with a base frame, can be folded, adopts high-strength aluminum alloy as a main material, can be integrally folded in a parking and transportation state, retracts along a sliding rail and is stored in the base frame of an elevator, fully realizes the miniaturization and lightweight design of products, and is simple to operate and convenient to use.
In order to achieve the technical features, the utility model is realized as follows: the utility model provides a collapsible formula cat ladder structure of accomodating, it includes the ladder roof beam skeleton, links to each other through the antiskid subassembly of marking time is fixed between the ladder roof beam skeleton, links to each other with articulated seat through first round pin axle on the lower part lateral wall of ladder roof beam skeleton, and articulated seat fixed mounting is at the afterbody of support frame, and the support frame passes through the flexible sliding fit of sliding guide structure and slide rail constitution.
Folding handrail mechanism is installed to ladder roof beam skeleton, folding handrail mechanism is including fixing the handrail support on ladder roof beam skeleton, and articulated on the handrail support have the handrail, and the cover is equipped with quick location cutting ferrule between handrail and the handrail support, and quick location cutting ferrule cooperatees with the cylindric lock.
The ladder beam comprises a ladder beam framework and is characterized in that a joint seat is arranged on the upper side wall of the ladder beam framework, a connecting rod is hinged to the joint seat, and an ear seat is hinged to the other end of the connecting rod.
The sliding guide structure is arranged on a sliding block on the outer side wall of the support frame, the sliding block and a sliding groove of the sliding rail form sliding fit, the sliding block is fixed on the outer side wall of the support frame through a bolt, and the bolt is locked and fixed through a flat washer and a stop nut.
The top of support frame is provided with the support.
And a positioning pin hole is processed on the sliding rail and matched with the first quick-release bolt, and the sliding block is locked at the position of the positioning pin hole.
The hinged seat and the supporting frame are connected through a second quick-release bolt in a locking mode.
The utility model has the following beneficial effects:
1. the utility model provides a foldable and retractable ladder stand structure which can fully realize the miniaturization and light-weight design of products.
2. The ladder stand is hinged with the base frame and can be folded integrally.
3. The ladder stand guardrail is foldable, and the volume of the storage state of the ladder stand guardrail can be effectively reduced.
4. The ladder stand and the guardrail structure are positioned and locked by the quick positioning clamping sleeve, the quick-release bolt and other modes.
5. The cat ladder can be wholly folding under the parking and the transportation state of companion ladder, along the slide rail withdrawal and accomodate in the base frame of companion ladder, can effectively reduce the overall volume and the occupation space of companion ladder.
6. The high-strength aluminum alloy is selected as the main material, so that the weight is reduced, and the weight is about 1/3 of the weight of a traditional steel member.
7. Simple operation and convenient use.
Drawings
The utility model is further illustrated by the following figures and examples.
FIG. 1 is a first perspective three-dimensional view of the present invention.
FIG. 2 is a second perspective three-dimensional view of the present invention.
Fig. 3 is a three-dimensional view of the utility model after folding.
In the figure: the antiskid step assembly comprises an antiskid step assembly 1, a ladder beam framework 2, a second quick-release bolt 3, a hinge seat 4, a first pin shaft 5, a handrail support 6, a cylindrical pin 7, a quick positioning clamping sleeve 8, a handrail 9, a connector seat 10, a connecting rod 11, an ear seat 12, a support frame 13, a support seat 14, a sliding rail 15, a first quick-release bolt 16, a sliding block 17, a flat washer 18, a stop nut 19 and a positioning pin hole 20.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-3, a collapsible storage formula cat ladder structure, it includes ladder beam skeleton 2, links to each other through antiskid marking time subassembly 1 is fixed between the ladder beam skeleton 2, links to each other with articulated seat 4 through first round pin axle 5 on the lower part lateral wall of ladder beam skeleton 2, and articulated seat 4 fixed mounting is at the afterbody of support frame 13, and support frame 13 constitutes flexible sliding fit through sliding guide structure and slide rail 15. This cat ladder structure links to each other with base frame is articulated, and the cat ladder guardrail is collapsible, chooses for use the high strength aluminum alloy as main material, parks and can wholly fold under the transport condition, along the slide rail withdrawal and accomodate in the base frame of companion ladder, fully realizes the miniaturization and the lightweight design of product, easy operation, convenient to use.
Further, folding handrail mechanism is installed to terraced roof beam skeleton 2, folding handrail mechanism is including fixing handrail support 6 on terraced roof beam skeleton 2, and it has handrail 9 to articulate on handrail support 6, and the cover is equipped with quick location cutting ferrule 8 between handrail 9 and the handrail support 6, and quick location cutting ferrule 8 cooperatees with cylindric lock 7. Through foretell folding handrail mechanism can be convenient fold handrail 9, and then be convenient for its subsequent use of accomodating. In the folding process, the upright state between the handrail 9 and the handrail support 6 can be released only by releasing the locking of the quick positioning clamping sleeve 8, so that the handrail can be folded.
Further, a joint seat 10 is installed on the upper side wall of the ladder beam framework 2, a connecting rod 11 is hinged to the joint seat 10, and an ear seat 12 is hinged to the other end of the connecting rod 11. Through foretell connecting rod 11 can be used for and form effectual support between the structure of need setting up, and then guaranteed the stability of cat ladder, guaranteed the security.
Further, the sliding guide structure is installed on a sliding block 17 on the outer side wall of the support frame 13, the sliding block 17 and a sliding groove of the sliding rail 15 form a sliding fit, the sliding block 17 is fixed on the outer side wall of the support frame 13 through a bolt, and the bolt is locked and fixed through a flat washer 18 and a stop nut 19. Through the sliding guide structure, the support frame 13 can slide along the slide rail 15, and then the corresponding telescopic storage action is realized.
Further, a support 14 is arranged on the top of the support frame 13. The above-described support 14 can be used for a secure articulated connection of the joint base 10 after removal of the connecting rod 11.
Furthermore, a positioning pin hole 20 is processed on the slide rail 15, and the positioning pin hole 20 is matched with the first quick release latch 16 and locks the slide block 17 at the position of the positioning pin hole 20. The positioning pin hole 20 can be used for locking the sliding block 17, so that the position of the support frame 13 can be locked after the support frame slides in place.
Furthermore, the hinged seat 4 and the support frame 13 are connected in a locking manner through a second quick-release bolt 3. Through foretell second quick-release bolt 3 can be used for locking and fixing ladder beam skeleton 2, and then guarantee the stability of structure.
The specific manufacturing process and principle of the utility model are as follows:
1. the slide rail 15 is made of aluminum parts and is welded on a bottom frame framework of the hydraulic elevator, a rear end blanking cover of the slide rail plays a limiting role, the slide rail is respectively provided with positioning holes for the extending and retracting limit positions of the ladder stand, and a quick-release bolt is inserted into the positioning holes at the extending and retracting limit positions of the ladder stand to play roles of positioning and stopping.
2. The support frame 13 is made of aluminum parts, a support seat, a welding bush and the like are welded on the support frame, a nylon sliding block is installed in the welding bush through a bolt, the nylon sliding block can slide back and forth in a sliding rail, and the end of the bolt stops and prevents looseness of a round nut through a round nut stop washer.
3. The connecting rod 11 is made of aluminum, the connecting rod can rotate around a rotating shaft on the lug seat, different hole positions on the lug seat can be positioned through the quick-release bolts, the lug seat is made of the aluminum, and the steel bushings are pressed at the rotating shafts and the quick-release bolts, so that the wear resistance of the steel bushings is improved, and the service life of the steel bushings is prolonged.
4. The quick positioning clamping sleeve 8 is made of an aluminum piece, the quick positioning clamping sleeve needs to be pulled upwards when the handrail needs to be turned inwards and folded, and the quick positioning clamping sleeve is sleeved at the bottom end of the handrail in an unfolding working state to be quickly fixed and locked and is clamped on the cylindrical pin through the clamping groove.
5. The handrail 9 is made of aluminum, and a joint is welded on the handrail.
6. The antiskid mark time 1 is made of aluminum parts and is welded with the ladder beam framework in an assembling mode, the main framework of the mark time is an aluminum rectangular tube, and a patterned antiskid aluminum plate is riveted to the upper plane of the main framework of the mark time to play an antiskid role.
7. The ladder beam framework is made of aluminum rectangular tubes.
Claims (7)
1. The utility model provides a collapsible formula cat ladder structure of accomodating which characterized in that: it includes terraced roof beam skeleton (2), links to each other through antiskid marking time subassembly (1) is fixed between terraced roof beam skeleton (2), links to each other with articulated seat (4) through first round pin axle (5) on the lower part lateral wall of terraced roof beam skeleton (2), and articulated seat (4) fixed mounting is at the afterbody of support frame (13), and support frame (13) constitute flexible sliding fit through sliding guide structure and slide rail (15).
2. The collapsible ladder stand structure of claim 1, wherein: folding handrail mechanism is installed in terraced roof beam skeleton (2), folding handrail mechanism is articulated on handrail support (6) including fixing handrail support (6) on terraced roof beam skeleton (2) have handrail (9), and the cover is equipped with quick location cutting ferrule (8) between handrail (9) and handrail support (6), and quick location cutting ferrule (8) cooperate with cylindric lock (7).
3. The collapsible ladder stand structure of claim 1, wherein: the ladder beam comprises a ladder beam framework (2), and is characterized in that a joint seat (10) is installed on the upper side wall of the ladder beam framework (2), a connecting rod (11) is hinged to the joint seat (10), and an ear seat (12) is hinged to the other end of the connecting rod (11).
4. The collapsible ladder stand structure of claim 1, wherein: the sliding guide structure is arranged on a sliding block (17) on the outer side wall of the support frame (13), the sliding block (17) and a sliding groove of the sliding rail (15) form sliding fit, the sliding block (17) is fixed on the outer side wall of the support frame (13) through a bolt, and the bolt is locked and fixed through a flat washer (18) and a stop nut (19).
5. The collapsible ladder stand structure of claim 4, wherein: and a support (14) is arranged at the top of the support frame (13).
6. The collapsible ladder stand structure of claim 4, wherein: and a positioning pin hole (20) is processed on the sliding rail (15), the positioning pin hole (20) is matched with the first quick-release bolt (16), and the sliding block (17) is locked at the position of the positioning pin hole (20).
7. The collapsible ladder stand structure of claim 4, wherein: the hinged seat (4) is connected with the support frame (13) through a second quick-release bolt (3) in a locking mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120306246.7U CN215859948U (en) | 2021-02-03 | 2021-02-03 | Collapsible formula cat ladder structure of accomodating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120306246.7U CN215859948U (en) | 2021-02-03 | 2021-02-03 | Collapsible formula cat ladder structure of accomodating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215859948U true CN215859948U (en) | 2022-02-18 |
Family
ID=80238363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120306246.7U Active CN215859948U (en) | 2021-02-03 | 2021-02-03 | Collapsible formula cat ladder structure of accomodating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215859948U (en) |
-
2021
- 2021-02-03 CN CN202120306246.7U patent/CN215859948U/en active Active
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