CN215292331U

CN215292331U - Ladder stand

Info

Publication number: CN215292331U
Application number: CN202023342136.0U
Authority: CN
Inventors: 郭勇
Original assignee: China Construction Eighth Engineering Divion Southern Construction Co Ltd
Current assignee: China Construction Eighth Engineering Divion Southern Construction Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-12-24
Anticipated expiration: 2030-12-30

Abstract

The utility model provides a ladder stand which can be detachably installed in a foundation pit and comprises a ladder stand body, a handrail component and a supporting component, wherein the ladder stand body is of a telescopic structure, the upper end of the ladder stand body is suitable for leaning against the upper side wall of the foundation pit and is fixedly connected with the upper side wall of the foundation pit, and the lower end of the ladder stand body is arranged in the foundation pit in a hanging manner; the handrail components are arranged on two sides of the ladder stand body and are suitable for being supported by people; the lower end of the supporting component is installed at the bottom of the ladder stand body, and the upper end of the supporting component is suitable for being placed on a cross beam above the foundation pit, so that the ladder stand body is stable. The utility model provides a cat ladder, simple manufacture, installation are dismantled conveniently, and are convenient for accomodate, the narrow and small space in specially adapted construction place, and firm reliable after the installation, greatly reduced the potential safety hazard.

Description

Ladder stand

Technical Field

The utility model relates to a ladder technical field particularly, relates to a cat ladder.

Background

At present, with the higher and higher requirements on energy conservation and environmental protection of buildings, building resources need to be more comprehensively optimized and configured so as to increase the recycling rate. Therefore, construction enterprises often face narrow construction areas and cannot carry out operation in the construction process. For example, in the construction of a foundation pit, the arrangement of a pedestrian crosswalk on a plane is relatively difficult due to the narrow construction site.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem how to design a cat ladder to be convenient for the firm after the cat ladder installation, be convenient for again accomodate and deposit.

In order to solve the problem, the utility model provides a cat ladder, demountable installation is in the foundation ditch, include:

the ladder stand body is of a telescopic structure, the upper end of the ladder stand body is suitable for leaning against the upper side wall of the foundation pit and is fixedly connected with the upper side wall, and the lower end of the ladder stand body is arranged in the foundation pit in a hanging mode;

the handrail components are arranged on two sides of the ladder stand body and are suitable for being supported by people;

the lower end of the supporting component is installed at the bottom of the ladder stand body, and the upper end of the supporting component is suitable for being placed on a cross beam above the foundation pit, so that the ladder stand body is stable.

Therefore, the crawling ladder comprises three parts, namely a crawling ladder body, a handrail component and a supporting component, and when the crawling ladder is installed, the crawling ladder body is of a telescopic structure and is convenient to store; the handrail component is convenient for ensuring the safety of users; the supporting component is used for further stabilizing the ladder stand with the suspended lower side, does not occupy the space of a foundation pit, and can also ensure that the ladder stand is more stable after installation, and the damage probability of the ladder stand caused by treading is reduced, so that the potential safety hazard is greatly reduced.

Optionally, the ladder stand body comprises two side plates which are symmetrically arranged in parallel and a ladder plate which is located between the two side plates, and the ladder plate is suitable for sliding on the side plates and being fixed at a corresponding position.

Therefore, the ladder board can slide on the side plates and is fixed at the corresponding position, so that the ladder board can be stretched out and used as a ladder stand, and is convenient to store when not used.

Optionally, the curb plate is including nested first expansion plate and the second expansion plate of connecting in proper order, be equipped with the first spacing fixed pin that is suitable for adjusting relative nested height between first expansion plate and the second expansion plate, evenly be provided with a plurality of first locating holes on the first expansion plate, evenly be provided with a plurality of second locating holes on the second expansion plate, first locating hole with the position one-to-one of second locating hole, first spacing fixed pin is suitable for inserting first locating hole with in order to adjust relative height in the second locating hole.

Therefore, the first expansion plate and the second expansion plate are connected in a nested manner, so that the height is convenient to adjust; when not using simultaneously, further accomodate through flexible, not only simple structure, firm in connection moreover.

Optionally, opposite sides of the first expansion plate and the second expansion plate are both provided with sliding grooves, and the step plates are adapted to move in the sliding grooves and fixed at corresponding positions.

Like this, when needs use the cat ladder, slide the step board to corresponding fixed position installation through the spout, not only simple structure facilitates the use moreover.

Optionally, the armrest assembly comprises a first connecting piece, a second connecting piece and a third connecting piece, which are connected in sequence, wherein the second connecting piece is suitable for being arranged in parallel with the side plate, the first connecting piece is suitable for being vertically and fixedly connected to the lower side of the first expansion plate, and the third connecting piece is suitable for being vertically and fixedly connected to the upper side of the second expansion plate.

Like this, handrail assembly is including the first connecting piece, second connecting piece and the third connecting piece that connect gradually to respectively with first expansion plate and second expansion plate fixed connection, not only can make handrail assembly and curb plate be connected more firm, be difficult for breaking away from between the two, can handrail assembly's installation, be convenient for guarantee user of service's safety protection.

Optionally, the support assembly includes two vertical connecting pieces and a horizontal connecting piece which are arranged in parallel, one end of each vertical connecting piece is fixedly connected with the horizontal connecting piece, the other end of each vertical connecting piece is respectively and correspondingly and fixedly connected with the lower side of the first expansion plate, and the horizontal connecting piece is suitable for being placed on a cross beam above the foundation pit.

Like this, supporting component's setting, on the one hand to the unsettled position of cat ladder bottom go on further fixedly, still do not occupy the space of foundation ditch, not only simple structure, firm in connection moreover.

Optionally, an included angle between the vertical connecting piece and the first expansion plate ranges from 55 degrees to 65 degrees.

Thus, the proper inclination angle is set, so that the proper stress is ensured, and the user can not feel that the climbing ladder is steep.

Optionally, the width of the step is in the range of 256-265mm, and the height of the step is in the range of 158-162 mm.

Like this, the ladder board of suitable size is safe and reliable when the user of being convenient for goes up and down the cat ladder.

Optionally, the ladder body, the handrail assembly and the support assembly may all be made of i-steel, and/or angle steel, and/or steel pipe material.

Therefore, the I-shaped steel and/or the angle steel and/or the steel pipe are adopted, so that the material is convenient to obtain, the assembly is convenient, and the structural strength is reliable.

Optionally, a reinforcing plate is further included, the reinforcing plate being adapted to be fixedly mounted between the armrest assembly and the side plate.

Therefore, the reinforcing plate has a simple structure and is convenient to produce and manufacture; meanwhile, the reinforcing plate is suitable for being fixedly installed between the handrail assembly and the side plates, and the structural strength is enhanced.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a ladder stand of the present invention;

fig. 2 is a schematic structural view of a viewing angle of the ladder of the present invention;

fig. 3 is a schematic structural view of a ladder body in an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 3;

fig. 5 is a schematic structural view of another view angle of the middle side plate of the present invention.

Description of reference numerals:

1. a ladder body; 11. a side plate; 111. a first expansion plate; 1111. a first positioning hole; 112. a second expansion plate; 1121. a second positioning hole; 113-a first spacing fixation pin; 114. a chute; 12. a step plate; 2. an armrest assembly; 21. a first connecting member; 22. a second connecting member; 23. a third connecting member; 3. a support assembly; 31. a vertical connecting member; 32. a horizontal connecting piece.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it is to be understood that the forward direction of "X" in the drawings represents the right direction, and correspondingly, the reverse direction of "X" represents the left direction; the forward direction of "Y" represents rearward, and correspondingly, the reverse direction of "Y" represents forward; the forward direction of "Z" represents the upward direction, and correspondingly, the reverse direction of "Z" represents the downward direction, and the terms "X", "Y", "Z", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings of the specification, and are merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present invention, it should be noted that terms such as "upper", "lower", "front", "rear", and the like in the embodiments indicate terms of orientation, and are only used for simplifying the description of positional relationships based on the drawings of the specification, and do not represent that the elements, devices, and the like indicated in the description must be operated according to specific orientations and defined operations and methods, configurations, and such terms of orientation do not constitute limitations of the present invention.

At present, in the construction process, construction enterprises often face that the construction area is narrow and small, and the construction operation is influenced. For example, in the foundation pit construction, due to the fact that the construction site is narrow, the plane arrangement of the pedestrian crossing is difficult, and therefore the movable crawling ladder which is simple and practical to manufacture and install is needed.

As shown in fig. 1, an embodiment of the present invention provides a ladder stand, which includes a ladder stand body 1, a handrail assembly 2 and a supporting assembly 3

The ladder stand body 1 is of a telescopic structure, the upper end of the ladder stand body 1 is suitable for leaning against the upper side wall of the foundation pit and is fixedly connected with the upper side wall, and the lower end of the ladder stand body 1 is arranged in the foundation pit in a hanging mode;

the handrail components 2 are arranged on two sides of the ladder stand body 1 and are suitable for being supported by people;

the lower end of the supporting component 3 is installed at the bottom of the ladder stand body 1, and the upper end of the supporting component 3 is suitable for being placed on a cross beam above a foundation pit, so that the ladder stand body 1 is stable.

In this embodiment, cat ladder body 1 is extending structure, can combine actual need to stretch out and draw back to take the altitude to fix, handrail components 2 respectively install the both sides at cat ladder body 1, highly are suitable for the user to support.

The crawling ladder comprises three parts, namely a crawling ladder body 1, a handrail component 2 and a supporting component 3, and when the crawling ladder is installed, the crawling ladder body 1 is of a telescopic structure and is convenient to store; the handrail component 2 is convenient for ensuring the safety of users; supporting component 3 is used for further stabilizing the unsettled cat ladder of downside, neither occupies the space of foundation ditch, can also guarantee to install the back more firm, and the cat ladder is owing to trample the damage probability who leads to and reduce, greatly reduced the potential safety hazard.

Specifically, the ladder body 1 comprises two side plates 11 arranged in parallel and symmetrically and a ladder plate 12 positioned between the two side plates, wherein the ladder plate 12 is suitable for sliding on the side plates 11 and fixing at a corresponding position. Thus, the ladder board 12 can be slid on the side board 11 and fixed at a corresponding position, so that the ladder can be extended to be used as a ladder stand and can be conveniently stored when not in use.

In this embodiment, the shape of the step plate 12 is not limited, and is determined according to actual requirements, as shown in fig. 1, 2, and 3, the cross section of the step plate 12 is square-like, and the step plate can be formed by bending a metal plate for multiple times, for example, the step plate 12 is formed by blanking a steel plate with a thickness of 5mm and bending; it may also be formed by welding a plurality of plates. In the L-like configuration, the ladder board 12 is slidably connected to the side plates 11 at both ends thereof.

In this embodiment, the ladder board 12 is connected with dismantlement formula between the curb plate 11 respectively, from this, has simplified the structure of cat ladder, need not set up complicated connection structure, is convenient for both's production and processing. And the ladder board 12 can slide to one end of the side board 11 for easy storage.

In this embodiment, the ladder body 1 may be integrally provided with the handrail assembly 2 and the support assembly 3, and may be detachably connected. That is, in one embodiment, the ladder body 1 is detachably connected with the handrail assembly 2 and the support assembly 3. In another embodiment, the ladder body 1 is integrally provided with the handrail assembly 2 and detachably connected to the support assembly 3, and in yet another embodiment, the ladder body 1 is detachably connected to the handrail assembly 2 and integrally provided with the support assembly 3. Thus, the installation efficiency among the ladder body 1, the handrail assembly 2 and the support assembly 3 is improved by reducing the installation steps.

Specifically, the side plate 11 includes a first expansion plate 111 and a second expansion plate 112 which are sequentially connected in a nested manner, a first limiting fixing pin 113 suitable for adjusting the relative nesting height is arranged between the first expansion plate 111 and the second expansion plate 112, a plurality of first positioning holes 1111 are uniformly arranged on the first expansion plate 111, a plurality of second positioning holes 1121 are uniformly arranged on the second expansion plate 112, the first positioning holes 1111 correspond to the second positioning holes 1121 one to one, and the first limiting fixing pin 113 is suitable for being inserted into the first positioning holes 1111 and the second positioning holes 1121 to adjust the relative height. Therefore, the first expansion plate and the second expansion plate are connected in a nested manner, so that the height is convenient to adjust; when not using simultaneously, further accomodate through flexible, not only simple structure, firm in connection moreover.

In this embodiment, the first expansion plate 111 and the second expansion plate 112 are both provided with uniformly distributed screw holes and pin holes, or may be through holes, and are selected according to the structures of the first expansion plate 111 and the second expansion plate 112.

Specifically, the opposite sides of the first telescopic plate 111 and the second telescopic plate 112 are both opened with sliding slots 114, and the step plate 12 is adapted to move in the sliding slots 114 and fixed at the corresponding position. Thus, when the ladder is needed, the ladder board 12 is slid to the corresponding position through the sliding groove 114 to be fixedly installed, and the ladder is not only simple in structure, but also convenient to use.

In this embodiment, the structural shape of the sliding slot 114 can be set according to the specific structure of the two ends of the step board 12, as long as the requirement that the step board 12 can slide in the sliding slot 114 to the corresponding position for fixing can be met. Thereby, the connection of the side panels 11 and the step panels 12 is achieved.

Optionally, the armrest assembly 2 includes a first connecting member 21, a second connecting member 22 and a third connecting member 23 connected in sequence, the second connecting member 22 is adapted to be disposed in parallel with the side plate 11, the first connecting member 21 is adapted to be vertically and fixedly connected to a lower side of the first expansion plate 111, and the third connecting member 23 is adapted to be vertically and fixedly connected to an upper side of the second expansion plate 112. Like this, handrail assembly 2 is including the first connecting piece 21, second connecting piece 22 and the third connecting piece 23 that connect gradually to respectively with first expansion plate 111 and second expansion plate 112 fixed connection, not only can make handrail assembly 2 and curb plate 11 be connected more firm, be difficult for breaking away from between the two, through handrail assembly 2's installation, be convenient for guarantee user of service's safety protection.

In this embodiment, the shapes of the first connecting member 21, the second connecting member 22, and the third connecting member 23 are not limited, and are determined according to actual requirements, as shown in fig. 1 and 3, the first connecting member 21, the second connecting member 22, and the third connecting member 23 are all made of steel pipes, which can be made of existing materials.

In this embodiment, the armrest assembly 2 is detachably connected to the first retractable plate 111 and the second retractable plate 112, so that the structure of the armrest assembly 2 is simplified, a complex connection structure is not required, and the armrest assembly and the second retractable plate are convenient to produce and process.

Optionally, the supporting assembly 3 includes two vertical connecting members 31 and two horizontal connecting members 32 arranged in parallel, one end of each vertical connecting member 31 is fixedly connected to the corresponding horizontal connecting member 32, the other end of each vertical connecting member 31 is correspondingly and fixedly connected to the lower side of the corresponding first expansion plate 111, and the horizontal connecting members 32 are adapted to rest on a cross beam above the foundation pit. Like this, supporting component's setting, on the one hand to the unsettled position of cat ladder bottom go on further fixedly, still do not occupy the space of foundation ditch, not only simple structure, firm in connection moreover.

In this embodiment, the connection mode between the vertical connection member 31 and the first expansion plate 111 may be a threaded connection, or a welding connection, and is selected according to an actual structure.

Optionally, the angle between the vertical connector 31 and the first expansion plate 111 is in the range of 55-65 degrees. Thus, the proper inclination angle is set, so that the proper stress is ensured, and the user can not feel that the climbing ladder is steep.

In this embodiment, the first expansion plate 111 and the vertical connecting piece 31 at the lower part of the ladder stand are welded to form a 60-degree angle, so that the ladder stand is relatively long in length and gentle in gradient, and the safety of people up and down is facilitated. Of course, the connection can also be detached.

Optionally, the width of the step 12 ranges from 256-265mm and the height of the step 12 ranges from 158-162 mm. Like this, the ladder board of suitable size is safe and reliable when the user of being convenient for goes up and down the cat ladder.

In this embodiment, the number of the ladder boards 12 is a plurality of, and the interval sets up between the adjacent ladder boards 12, as shown in fig. 1, ladder boards 12 evenly distributed is on curb plate 11, from this, realizes the multistage climbing of personnel on the cat ladder.

Optionally, the ladder body 1, the handrail assembly 2 and the support assembly 3 may all be made of i-steel, and/or angle steel, and/or steel pipe material.

In this embodiment, the cross-sectional shapes of the ladder body 1, the handrail assembly 2 and the support assembly 3 may be circular, oval, square or other irregular shapes, and meanwhile, the ladder body 1, the handrail assembly 2 and the support assembly 3 may be of a solid structure or a hollow structure. Under the condition that the structural strength reaches the standard, the ladder stand body 1, the handrail component 2 and the supporting component 3 are preferably hollow structures. As shown in fig. 1, in the present embodiment, the main frame is made of two i-shaped steels (16#), angle steels (50 × 5), steel pipes, and the like, and the angle steels and the i-shaped steels are welded to each other in the horizontal direction to form the step.

Optionally, the step plate 12 further comprises a tread surface, and an anti-skid structure is arranged on the tread surface. Therefore, the I-shaped steel and/or the angle steel and/or the steel pipe are adopted, so that the material is convenient to obtain, the assembly is convenient, and the structural strength is reliable.

In this embodiment, the pattern of anti-skidding structure has the multiple, and it can be one or more combination in flanging hole, anti-skidding line or antislip strip, and anti-skidding structure is the flanging hole, and it is by the stamping forming of step board 12, and it is equipped with a plurality ofly, and a plurality of flanging hole intervals set up on stepping on the tread. Thus, when a person steps on the tread surface, the sole of the foot is in contact with the flanging hole, and the friction force is increased.

Optionally, a reinforcing plate is included, which is adapted to be fixedly mounted between the armrest assembly 2 and the side panel 11. Therefore, the reinforcing plate has a simple structure and is convenient to produce and manufacture; meanwhile, the reinforcing plate is suitable for being fixedly installed between the handrail assembly and the side plates, and the structural strength is enhanced.

In the embodiment, the reinforcing rod is made of the advertising board, so that the cost is saved, and the requirement on the use strength can be met.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims

1. The utility model provides a cat ladder, demountable installation is in the foundation ditch, its characterized in that includes:

the ladder stand comprises a ladder stand body (1), wherein the ladder stand body (1) is of a telescopic structure, the upper end of the ladder stand body (1) is suitable for leaning against the upper side wall of the foundation pit and is fixedly connected with the upper side wall, and the lower end of the ladder stand body (1) is arranged in the foundation pit in a hanging mode;

the handrail components (2) are arranged on two sides of the ladder stand body (1) so as to be suitable for being supported by people;

the lower end of the supporting component (3) is installed at the bottom of the ladder stand body (1), and the upper end of the supporting component (3) is suitable for being placed on a cross beam above the foundation pit, so that the ladder stand body (1) is stable.

2. A ladder according to claim 1, characterised in that the ladder body (1) comprises two side plates (11) arranged in parallel and symmetrically and a ladder plate (12) between the two side plates (11), which ladder plate (12) is adapted to slide over the side plates (11) and be fixed in position.

3. The ladder stand according to claim 2, wherein the side plates (11) comprise a first telescopic plate (111) and a second telescopic plate (112) which are connected in a nested manner in sequence, a first limiting fixing pin (113) suitable for adjusting the relative nesting height is arranged between the first telescopic plate (111) and the second telescopic plate (112), a plurality of first positioning holes (1111) are uniformly formed in the first telescopic plate (111), a plurality of second positioning holes (1121) are uniformly formed in the second telescopic plate (112), the positions of the first positioning holes (1111) and the positions of the second positioning holes (1121) are in one-to-one correspondence, and the first limiting fixing pin (113) is suitable for being inserted into the first positioning holes (1111) and the second positioning holes (1121) to adjust the relative height.

4. A ladder according to claim 3, characterised in that the opposite sides of the first telescopic plate (111) and the second telescopic plate (112) each define a slide slot (114), the ladder plate (12) being adapted to move within the slide slots (114) and to be fixed in position.

5. A ladder according to claim 3, characterised in that the handrail assembly (2) comprises a first connecting member (21), a second connecting member (22) and a third connecting member (23) connected in series, the second connecting member (22) being adapted to be arranged in parallel with the side plate (11), the first connecting member (21) being adapted to be fixedly connected vertically to the lower side of the first telescopic plate (111), and the third connecting member (23) being adapted to be fixedly connected vertically to the upper side of the second telescopic plate (112).

6. A ladder according to claim 3, characterised in that the support assembly (3) comprises two vertical connectors (31) and horizontal connectors (32) arranged in parallel, one end of the vertical connector (31) being fixedly connected to the horizontal connector (32) and the other end of the vertical connector (31) being fixedly connected to the respective underside of the first telescopic plate (111), the horizontal connector (32) being adapted to rest on a beam above the pit.

7. A ladder according to claim 6, characterised in that the angle between the vertical connector (31) and the first expansion plate (111) is in the range 55-65 degrees.

8. Ladder as in claim 6, characterized in that the width of the ladder plate (12) ranges from 256 to 265mm and the height of the ladder plate (12) ranges from 158 to 162 mm.

9. A ladder according to claim 1, characterised in that the ladder body (1), the handrail assembly (2) and the support assembly (3) are all made of i-steel, and/or angle steel, and/or steel pipe material.

10. A ladder as claimed in claim 4, characterised by further comprising a reinforcing plate adapted to be fixedly mounted between the handrail assemblies (2) and (4) and the side plate (11).